WO2015166904A1 - Electric power tool - Google Patents

Abstract

In the present invention, in order to provide an electric power tool that enables a further reduction in size and in weight and that can simplify auxiliary-handle attachment workability, an electric power tool comprises: handle fixing parts (27a, 27b) that that have screw holes (28a, 28b) formed therein and are provided at a lateral surface of a housing (20) which is positioned above a rotary axis; and an auxiliary handle (29) that has a screw part (29a) which is joined to the screw holes (28a, 28b), that extends laterally from the lateral surface of the housing, and that is fixed to the handle fixing parts (27a, 27b).

Description

Electric tool

The present invention relates to an electric tool for driving a tip tool such as a driver bit.

Portable power tools include power tools that drive tip tools such as driver bits. As this electric tool, there is a driver drill, which includes an electric motor having a rotating shaft for driving a tip tool, and a housing for housing the electric motor. The housing is integrally provided with a grip portion that extends in a direction intersecting the axial direction of the rotation shaft and is gripped by an operator. An operation switch is provided in a portion of the grip portion near the housing, and by operating the operation switch, the electric motor is driven to rotate, and eventually the tip tool is driven. *

By the way, when the driver drill is used for a long time with one hand, the gripping force (grip strength) decreases. This makes it difficult for the operator to stably support the driver drill with one hand. Therefore, an auxiliary handle is attached to the housing, and the support of the driver drill can be assisted with the other hand, so that the electric tool can be used for a long time. An example of a driver drill to which such an auxiliary handle can be attached is described in Patent Document 1. *

The driver drill described in Patent Document 1 includes a power tool main body, and an auxiliary handle can be attached to a portion of the power tool main body near the tip tool. The auxiliary handle is formed of a ring-shaped mount having a notch, a ratchet that can adjust the interval between the notches, and a handle that is gripped by an operator and accommodates the ratchet inside. The auxiliary handle is fixed to the power tool main body by widening the notch spacing and placing the mount at a predetermined position of the power tool main body and operating the ratchet to narrow the notch spacing.

JP 2012-096299 A

In portable power tools, further reduction in size and weight is desired in order to improve workability in a narrow portion and improve portability. However, according to the technique described in Patent Document 1 described above, the ring-shaped mount is fixed so as to be tightened from the periphery of the power tool body, and thus the power tool body requires a ring-shaped mount fixing portion. . That is, the dimension along the axial direction of the tip tool of the electric power tool main body is increased by the necessity of the ring-shaped mount fixing portion. In addition, since the auxiliary handle includes a ring-shaped mount, a complicated ratchet, and the like, the auxiliary handle is increased in size and weight. Furthermore, since it is necessary to operate the ratchet while placing the mount on the mount fixing portion, it is troublesome to attach the auxiliary handle to the electric tool body. *

An object of the present invention is to provide an electric tool capable of further reducing the size and weight while simplifying the workability of attaching an auxiliary handle.

In one aspect of the present invention, an electric motor having a rotating shaft for driving a tip tool, a housing main body that houses the electric motor, and a housing that extends downward from the housing main body and is gripped by an operator, An electric power tool comprising: a handle fixing portion provided on a side surface of the housing located above the rotating shaft and having a screw hole formed therein; and a screw portion coupled to the screw hole, And an auxiliary handle that extends laterally from a side surface of the housing and is fixed to the handle fixing portion. *

In another aspect of the present invention, the housing is formed of a first divided body and a second divided body that are divided in the left-right direction intersecting the extending direction of the grip portion, and the handle fixing portion is the first It was provided in each of the divided body and the second divided body. *

In another aspect of the present invention, the auxiliary handle is fixed to one of the handle fixing portions provided in the first divided body and the second divided body, and the inner side of the handle fixing portion is prevented from being exposed to the other. A cap member was attached. *

In another aspect of the present invention, the screw hole is constituted by a female screw, the screw portion is constituted by a male screw, and the male screw is screwed to the female screw. *

In another aspect of the invention, the internal thread is configured not to penetrate the housing. *

In another aspect of the present invention, a handle nut is provided inside the handle fixing portion, a male screw is provided on the auxiliary handle, and the male screw is screwed to the handle nut from the outside of the handle fixing portion. *

In another aspect of the present invention, an insulating member is provided between a tip portion of the male screw screwed to the handle nut and the electric motor housed in the housing. *

In another aspect of the present invention, the handle fixing portion is formed by a support body that supports the first divided body and the second divided body from the left-right direction of the housing. *

In another aspect of the present invention, the support is fixed to each of the first divided body and the second divided body with a bolt and a nut. *

In another aspect of the present invention, an electric motor having a rotating shaft that drives a tip tool, a housing main body that houses the electric motor, and a housing that has a grip portion that extends downward from the housing main body and is gripped by an operator. A handle fixing portion provided on a side surface of the housing, and an auxiliary handle fixed to the handle fixing portion and extending laterally from the side surface of the housing, A light emitting unit for illuminating the tip tool is provided in the housing below the rotating shaft, and the handle fixing unit is provided in the housing on the rear side of the light emitting unit in a direction along the axial direction of the rotating shaft. . *

In another aspect of the present invention, an electric motor having a rotating shaft that drives a tip tool, a housing main body that houses the electric motor, and a housing that has a grip portion that extends downward from the housing main body and is gripped by an operator. , A handle fixing portion provided on a side surface of the housing below the rotating shaft, and extending laterally from the side surface of the housing to be fixed to the handle fixing portion. A light emitting portion that illuminates the tip tool on at least one of the auxiliary handle, the housing above the rotation shaft, and the grip portion opposite to the rotation shaft along the extending direction of the grip portion. Is provided. *

In another aspect of the present invention, an electric motor having a rotating shaft that drives a tip tool, a housing main body that houses the electric motor, and a housing that has a grip portion that extends downward from the housing main body and is gripped by an operator. A handle fixing portion provided on a side surface of the housing and fixed to the housing by a plurality of fixing members; fixed to the handle fixing portion; and laterally from the side surface of the housing. And an extended auxiliary handle. *

In another aspect of the present invention, the handle fixing portion includes a fixing main body fixed to the housing, and a boss portion provided on the fixing main body and having a female screw to which a male screw of the auxiliary handle is screwed. Have. *

In another aspect of the present invention, the auxiliary handle is integrally formed with the handle fixing portion. *

In another aspect of the present invention, a fixing portion between the handle fixing portion and the auxiliary handle is provided on a side surface of the housing positioned above or below the rotation shaft.

According to the present invention, there is no need to provide the housing with a ring-shaped mount fixing portion for mounting the ring-shaped mount as before, and it is only necessary to partially provide a handle fixing portion that is not ring-shaped with the housing. . Thereby, the dimension along the axial direction of the rotating shaft of the housing can be reduced as compared with the conventional case, and further reduction in size and weight is possible. If the auxiliary handle is fixed to the handle fixing portion by screw connection or the like, the fixing structure between the auxiliary handle and the handle fixing portion can be simplified. Therefore, it is not necessary to provide a ring-shaped mount or a complicated ratchet on the auxiliary handle as before, and the auxiliary handle can be reduced in size and weight.

It is the top view which looked at the driver drill of Embodiment 1 from the side. (A) is sectional drawing of the housing in alignment with the AA of FIG. 1, (b) is sectional drawing which shows the modification of Fig.2 (a). It is the top view which looked at the driver drill of Embodiment 2 from the side. (A) is sectional drawing of the housing which follows the BB line of FIG. 3, (b) is sectional drawing which shows the modification of FIG. 4 (a). It is the top view which looked at the driver drill of Embodiment 3 from the side. FIG. 6 is a cross-sectional view of the housing and the electric motor along line CC in FIG. 5. It is the top view which looked at the driver drill of Embodiment 4 from the side. (A) is sectional drawing of the housing and handle | steering-wheel fixing part which follow the DD line | wire of FIG. 7, (b) is sectional drawing which shows the modification of FIG. 8 (a). It is the top view which looked at the driver drill of Embodiment 5 from the side. It is the top view which looked at the driver drill of Embodiment 6 from the side. It is E arrow line view of FIG. It is the top view which looked at the driver drill of Embodiment 7 from the side. (A) is sectional drawing of the housing and handle | steering-wheel fixing part which follows the FF line | wire of FIG. 12, (b) is sectional drawing which shows the modification a of FIG. 13 (a). (A) is sectional drawing which shows the modification b of FIG. 13 (a), (b) is sectional drawing which shows the modification c of FIG. 13 (a).

Embodiment 1 Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings. *

FIG. 1 is a plan view of the driver drill according to the first embodiment when viewed from the side, FIG. 2 (a) is a sectional view of the housing along the line AA in FIG. 1, and (b) is a sectional view of FIG. Sectional drawing which shows a modification is shown, respectively. *

As shown in FIG. 1, a driver drill 10 as an electric tool includes a rechargeable battery (secondary battery) 11 and an electric motor (electric motor) 12 that is driven to rotate using the battery 11 as a power source. The electric motor 12 has a rotating shaft 13, and the rotating shaft 13 drives (rotates) a driver bit 14 as a tip tool via a planetary gear mechanism (reduction gear) (not shown). Here, the driver bit 14 is fixed to the keyless chuck 15, and by operating the keyless chuck 15, it can be replaced with a driver bit of other specifications or a tip tool such as a hexagon socket. *

Further, an adjustment cap 16 for adjusting the tightening force of the driver drill 10 is provided at a portion of the keyless chuck 15 near the electric motor 12. The tightening force of the driver drill 10 can be increased by rotating the adjustment cap 16 clockwise (forward direction), and the driver drill can be rotated by rotating the adjustment cap 16 counterclockwise (reverse direction). The tightening force of 10 can be reduced.

The driver drill 10 includes a housing 20 that forms an outer shell thereof. The housing 20 is formed by injection-molding plastic or the like so that the shape viewed from the side is substantially T-shaped. The housing 20 includes a housing main body 21 and a grip portion 22, and the grip portion 22 extends in a direction (first direction) intersecting with a direction (axial direction) in which the axis C <b> 1 of the rotating shaft 13 extends. . Specifically, the grip portion 22 extends downward from the housing body 21.

The housing 20 is divided into a direction intersecting with the axial direction of the rotating shaft 13 and the extending direction of the grip portion 22 (the left and right directions on the near side and the far side in FIG. 1), and as shown in FIG. 20a and the 2nd division body 20b are provided. The first divided body 20a and the second divided body 20b are formed in substantially the same shape so as to be mirror-symmetric with respect to the axis C1 of the rotation shaft 13. Thereby, the metal mold | die (not shown) used for shape | molding the 1st, 2nd division bodies 20a and 20b can be easily prepared now. And the cavity H is formed inside the housing 20 in the state which assembled | attached the 1st division body 20a and the 2nd division body 20b. *

As shown in FIG. 1, a battery holding portion 23 is provided on the side opposite to the housing body 21 side along the extending direction of the grip portion 22. The battery 11 is attached to the battery holding unit 23 with one touch. The battery 11 is fixed to the battery holding unit 23 by a lock mechanism (not shown). Therefore, when the driver drill 10 is used, the battery 11 is not dropped from the battery holding portion 23 due to vibration or the like. *

Inside the housing main body 21, an electric motor 12 made of a brushless DC motor and a planetary gear mechanism (not shown) for reducing the rotational speed of the rotary shaft 13 to a predetermined rotational speed and outputting a torque increased in torque. ) And is housed. The electric motor 12 is disposed on one side (right side in the figure) along the axial direction of the rotating shaft 13 of the housing body 21, and the planetary gear mechanism is on the other side (in the figure) along the axial direction of the rotating shaft 13 of the housing body 21. On the left). That is, the planetary gear mechanism is disposed between the electric motor 12 and the driver bit 14. In addition to the electric motor 12, the planetary gear mechanism, and the driver bit 14, the keyless chuck 15 is all arranged coaxially (on the axis C1). Thereby, the driver bit 14 can rotate smoothly without shaking. *

A slide switch 24 that can move in the axial direction of the rotary shaft 13 is provided at a position near the housing main body 21 along the extending direction of the grip portion 22. The slide switch 24 is disposed where the index finger is positioned exactly when the operator holds the center C <b> 2 of the grip portion 22. Thereby, the operativity improvement of the driver drill 10 is aimed at. Here, when the slide switch 24 is held in the state of being pulled toward the grip portion 22, the rotational drive state of the electric motor 12 is held. Note that the number of rotations of the electric motor 12 is adjusted in accordance with the pulling amount of the slide switch 24. Specifically, the rotation number of the electric motor 12 increases as the pulling amount increases. *

A forward / reverse button 25 for switching the rotation direction of the electric motor 12, that is, the rotation direction of the driver bit 14, is provided on the grip portion 22 side of the housing body 21 and in the vicinity of the slide switch 24. When the operator holds the center C2 of the grip portion 22, the forward / reverse button 25 is disposed where the thumb and the index finger are respectively positioned on the near side and the far side in FIG. When the forward / reverse button 25 is pushed to the front side in FIG. 1, the electric motor 12 is driven forward and can be screwed. On the other hand, when the forward / reverse button 25 is pushed to the back side in FIG. 1, the electric motor 12 is driven in reverse to loosen the screw. *

Further, a metal hook 26 is provided at a portion near the battery holding portion 23 of the first divided body 20 a forming the housing 20. The hook 26 is for hooking on the waist belt between work and the like so that the driver drill 10 can be suspended from the waist belt. *

As shown in FIG. 2, a first handle fixing portion 27 a and a second handle fixing portion 27 b are provided on the side surface of the housing body 21 that forms the housing 20. The first and second handle fixing portions 27 a and 27 b are integrally provided in each of the first and second divided bodies 20 a and 20 b that form the housing main body 21. *

The first and second handle fixing portions 27a and 27b are formed so as to protrude to the outer peripheral side of the housing body 21 having a substantially circular cross section, and the first and second handle fixing portions 27a and 27b include First and second female screws 28a and 28b having bottoms (not penetrating the housing body 21) are provided. The direction in which the first and second female screws 28a and 28b are opened is a direction (second direction) that intersects the axial direction of the rotary shaft 13 and is different from the extending direction of the grip portion 22. Yes. *

More specifically, the positions at which the first and second handle fixing portions 27a and 27b are disposed are opposite to the grip portion 22 side when viewed from the rotation shaft 13 of the housing body 21, that is, the upper side in the drawing (the rotation shaft). 13 above). As a result, when an auxiliary handle 29 described later is fixed to either one of the first and second handle fixing portions 27a and 27b, the rotary shaft 13 is disposed between the auxiliary handle 29 and the grip portion 22. It will be. Therefore, the shake (rotational moment) of the rotary shaft 13 accompanying the rotational drive of the rotary shaft 13 can be distributed substantially evenly on both the auxiliary handle 29 and the grip portion 22. Therefore, an operator who holds the auxiliary handle 29 and the grip portion 22 can stably hold the driver drill 10. Moreover, since the vibration transmitted to the worker is suppressed, the burden on the worker is reduced. *

Further, as shown in FIG. 2, the first and second handle fixing portions 27 a and 27 b are arranged on the upper side of the side surface of the housing main body 21, so that the first and second female screws 28 a and 28 b of the housing main body 21 are opened. The amount of overhang in the direction is reduced. As a result, the driver drill 10 can be thinned with the auxiliary handle 29 removed, and as a result, workability in a narrow portion can be improved. *

The first and second female screws 28 a and 28 b are configured so as not to penetrate the bottomed body, that is, the housing body 21, and are provided on the side surfaces of the housing body 21. Therefore, since the male screw 29a of the auxiliary handle 29 can be prevented from entering the inside of the housing body 21, the housing body 21 can be made compact. When the female screw penetrates the housing main body 21, it is necessary to avoid the built-in objects in the housing main body 21 such as the electric motor 12 and the power transmission mechanism (not shown). Therefore, the housing body 21 becomes large. Further, since the first and second female screws 28a, 28b are bottomed holes, it is possible to prevent foreign matters such as dust from entering the housing main body 21 from there. *

The distance between the axis C3 of the first and second female screws 28a, 28b (auxiliary handle 29) and the axis C1 of the rotary shaft 13 is a relatively long distance offset amount OS1. That is, the position where the first and second handle fixing portions 27a and 27b are arranged is the upper end portion of the housing main body 21 (first and second divided bodies 20a and 20b). *

The male screw 29a of the auxiliary handle 29 is fixed to the first and second female screws 28a and 28b of the first and second handle fixing portions 27a and 27b by screw coupling. Therefore, the extending direction of the auxiliary handle 29 is a direction (second direction) that intersects the axial direction of the rotating shaft 13 and is different from the extending direction of the grip portion 22. That is, the auxiliary handle 29 extends from the side surface of the housing body 21 to the side (right direction or left direction). When the auxiliary handle 29 is screwed to the first handle fixing portion 27a, a right-handed worker can be handled when the grip portion 22 is gripped by a dominant hand. On the other hand, when the auxiliary handle 29 is screw-coupled to the second handle fixing portion 27b, it is possible to handle a left-handed worker when gripping the grip portion 22 with a dominant hand. *

The auxiliary handle 29 includes a male screw 29a that can be screw-coupled to the first and second female screws 28a and 28b, a handle main body 29b gripped by an operator, and a male screw 29a and a handle main body 29b along the longitudinal direction of the auxiliary handle 29. And a collar portion 29c located at the bottom. The collar portion 29c has a diameter larger than the diameter of the handle body 29b, so that an operator holding the handle body 29b can stably hold the driver drill 10 without touching the housing body 21. Can do. *

Since the auxiliary handle 29 is fixed to one of the first and second handle fixing portions 27a and 27b by screw connection, the auxiliary handle 29 is easily attached and detached. Therefore, an increase in the number of parts can be suppressed without using a complicated mechanism for fixing the auxiliary handle 29. Moreover, it can respond to a worker's right-handed or left-handed quickly. Furthermore, the used driver drill 10 can be quickly put into the tool case. *

Here, the first and second female screws 28a and 28b shown in FIG. 2A may be formed as shown in the modification of FIG. Specifically, the first and second female screws 28c and 28d shown in FIG. 2B are formed so as to communicate with the inside and outside of the first and second divided bodies 20a and 20b, respectively. Thereby, the 1st, 2nd internal thread 28c, 28d can be shape | molded easily. *

Further, the rubber cap 30 as a cap member is attached to the other second female screw 28d not attached with the auxiliary handle 29 among the first and second female screws 28c, 28d. The rubber cap 30 prevents exposure of the inside of the second handle fixing portion 27b (the inside of the second female screw 28d) to the outside. Further, the rubber cap 30 can prevent foreign matters such as dust from entering the housing body 21 from the first and second female screws 28c and 28d. *

Thereby, the appearance of the driver drill 10 can be improved while preventing dust and the like from entering the inside (cavity H) of the first and second divided bodies 20a and 20b. However, the rubber cap 30 may be attached to the second female screw 28b shown in FIG. *

As described above in detail, according to the driver drill 10 according to the present embodiment, there is no need to provide the housing 20 with the ring-shaped mount fixing portion for mounting the ring-shaped mount as before, and the ring-shaped The first and second handle fixing portions 27a and 27b may be partially provided on the housing 20. *

Thereby, compared with the past, the dimension along the axial direction of the rotating shaft 13 of the housing 20 can be reduced, and further size reduction and weight reduction are attained. Further, since the auxiliary handle 29 is fixed to the first handle fixing portion 27a by screw connection, the fixing structure between the auxiliary handle 29 and the first handle fixing portion 27a can be simplified. Therefore, it is not necessary to provide a ring-shaped mount or a complicated ratchet on the auxiliary handle as before, and the auxiliary handle 29 can be reduced in size and weight.

Further, when the operator grips the grip portion 22 and presses the driver bit 14 against a screw or the like, a moment is generated to rotate by receiving a reaction force from the screw or the like, but the auxiliary handle 29 is moved above the axis C1. By providing the auxiliary handle 29 on the side (on the side opposite to the grip part 22), it is easy to press the driver drill 10 against a screw or the like against the reaction force, and workability can be improved. *

[Embodiment 2] Next, Embodiment 2 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. *

3 is a plan view of the driver drill according to the second embodiment as viewed from the side, FIG. 4 (a) is a sectional view of the housing along the line BB in FIG. 3, and (b) is a sectional view of FIG. 4 (a). Sectional drawing which shows a modification is shown, respectively. *

As shown in FIGS. 3 and 4, the driver drill 40 according to the second embodiment is different only in the positions of the first and second handle fixing portions 41a and 41b provided in the first and second divided bodies 20a and 20b. ing. Specifically, the first and second handle fixing portions 41a and 41b are disposed on the grip portion 22 side, that is, on the lower side in the drawing, when viewed from the rotating shaft 13 of the housing body 21. *

In addition, the first and second handle fixing portions 41 a and 41 b are arranged at positions closer to the driver bit 14 than the slide switch 24 along the axial direction of the rotating shaft 13. Thereby, the operator can support the driver drill 40 stably in a state where both hands are brought close to each other.

As shown in FIG. 4A, the first and second handle fixing portions 41a and 41b are arranged on the lower side of the housing main body 21, so that the first and first of the housing main body 21 are the same as in the first embodiment. The amount of overhang in the direction in which the two female screws 28a and 28b are opened is suppressed. Further, the distance between the axis C3 of the first and second female screws 28a, 28b (auxiliary handle 29) and the axis C1 of the rotary shaft 13 is an offset amount that is substantially the same as the offset amount OS1 of the first embodiment. It is OS2 (OS1 = OS2). That is, the position where the first and second handle fixing portions 41a and 41b are arranged is the lower end portion of the housing main body 21 (first and second divided bodies 20a and 20b). *

Here, as shown in the modification of FIG. 4B, as in the modification of the first embodiment, the first and second female screws 28c and 28d are connected to the inside and outside of the first and second divided bodies 20a and 20b. May be formed to communicate with each other. Further, the rubber cap 30 may be attached to the other second female screw 28d not attached with the auxiliary handle 29. Furthermore, the rubber cap 30 may be attached to the second female screw 28b shown in FIG. *

In the driver drill 40 of the second embodiment formed as described above, the same operational effects as those of the first embodiment described above can be achieved. *

[Embodiment 3] Next, Embodiment 3 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. *

FIG. 5 is a plan view of the driver drill according to the third embodiment as viewed from the side, and FIG. 6 is a sectional view of the housing and the electric motor along the line CC in FIG. *

As shown in FIGS. 5 and 6, the driver drill 50 according to Embodiment 3 includes the shapes and positions of the first and second handle fixing portions 51 a and 51 b provided in the first and second divided bodies 20 a and 20 b, Furthermore, the fixing structure of the auxiliary handle 29 is different. *

As shown in FIG. 5, the first and second handle fixing portions 51 a and 51 b are opposite to the grip portion 22 side when viewed from the rotation shaft 13 of the housing body 21 and in the vicinity of the axis C <b> 1 of the rotation shaft 13. Is arranged. Specifically, the separation distance between the axis C3 of the first and second handle fixing portions 51a, 51b (auxiliary handle 29) and the axis C1 of the rotary shaft 13 is an offset amount OS3 of a relatively short distance. (OS3 <OS1 (OS2)). That is, the position where the first and second handle fixing portions 51a and 51b are arranged is a portion that is substantially beside the housing main body 21 (first and second divided bodies 20a and 20b). Further, the first and second handle fixing portions 51 a and 51 b are disposed substantially beside the electric motor 12 along the axial direction of the rotating shaft 13. *

As shown in FIG. 6, the first and second handle fixing portions 51a and 51b are formed to have a substantially rectangular cross section, and first and second nut housing portions 52a and 52b are formed inside thereof. The first and second nut accommodating portions 52a and 52b are provided with first and second handle nuts 53a and 53b, respectively, such that they cannot rotate. The first and second handle fixing portions 51a and 51b are provided with first and second insertion holes 54a and 54b through which the male screw 29a of the auxiliary handle 29 is inserted. Thus, the first and second handle nuts 53a and 53b on the inner side of the first and second handle fixing portions 51a and 51b are moved from the outside of the first and second handle fixing portions 51a and 51b to the first and second handle fixing portions 51a and 51b. It can be screwed to the second handle nuts 53a, 53b. *

Here, when the male screw 29a of the auxiliary handle 29 is screwed to the first and second handle nuts 53a and 53b, the tip portion of the male screw 29a is exposed inside the first and second handle fixing portions 51a and 51b. Is done. And since the protrusion amount to the outer peripheral side of the housing 20 of the 1st, 2nd handle fixing | fixed part 51a, 51b is suppressed so that it may become as small as possible, the front-end | tip part of the external thread 29a is arrange | positioned close to the electric motor 12. It will be. Therefore, in order to avoid contact between the male screw 29a and the electric motor 12, first and second insulating members 55a and 55b made of an insulating material such as a rubber sheet are provided between the tip portion of the male screw 29a and the electric motor 12. ing. *

Further, of the first and second handle fixing portions 51a and 51b, the second insertion hole 54b of the other second handle fixing portion 51b to which the auxiliary handle 29 is not attached is inserted into the cap member similar to that of the first embodiment. A rubber cap 56 is attached. *

In the driver drill 50 of the third embodiment formed as described above, the same operational effects as those of the first embodiment described above can be obtained. In addition, in the third embodiment, since the auxiliary handle 29 is screwed to the first and second handle nuts 53a and 53b and fixed, the fixing strength of the auxiliary handle 29 can be improved. Therefore, it becomes possible to cope with a driver drill having a large output torque. *

[Embodiment 4] Next, Embodiment 4 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. *

7 is a plan view of the driver drill according to the fourth embodiment as viewed from the side, FIG. 8A is a cross-sectional view of the housing and the handle fixing portion along the line DD in FIG. 7, and FIG. Sectional drawing which shows the modification of (a) is shown, respectively. *

As shown in FIGS. 7 and 8, the driver drill 60 according to Embodiment 4 includes a support body 61 made of a steel material that is separate from the first and second divided bodies 20 a and 20 b, and includes the support body 61. The difference is that the handle is fixed. An auxiliary handle 29 is integrally provided on the support body 61. *

The first and second support members are fixed to the housing body 21 (first and second divided bodies 20a and 20b) on the side opposite to the grip portion 22 side when viewed from the rotation shaft 13 of the housing body 21. Portions 62a and 62b are formed. These first and second support fixing portions 62a and 62b are formed in a substantially rectangular cross section in a state where the first and second divided bodies 20a and 20b are assembled to each other. And the support body 61 is being fixed to the 1st, 2nd support body fixing | fixed part 62a, 62b. *

First and second bolt insertion holes 63a and 63b are formed in the first and second support fixing portions 62a and 62b so as to penetrate in the direction along the axis C3 of the auxiliary handle 29. First and second support fixing nuts (bolts) 64a and 64b are screw-coupled inside the first and second support fixing portions 62a and 62b. Nut) 65a and 65b are arranged. Here, the first and second support fixing bolts 64a and 64b and the first and second support fixing nuts 65a and 65b fix the support 61 to the first and second divided bodies 20a and 20b, respectively. Is to do. *

The support 61 has a substantially U-shaped cross section, and is provided on a main body 61a extending in the direction of the axis C3 of the auxiliary handle 29, and on both sides in the longitudinal direction of the main body 61a. 2 It has a pair of arm parts 61b and 61c extended toward support body fixing | fixed part 62a and 62b. And each arm part 61b, 61c of the support body 61 is supporting the 1st, 2nd support body fixing | fixed part 62a, 62b from the outer side (left-right side of Fig.8 (a)). Thus, the support body 61 is supporting so that the 1st, 2nd division bodies 20a and 20b may be clamped from the direction which cross | intersects the extension direction of the grip part 22. As shown in FIG. *

An auxiliary handle 29 is connected to one side in the longitudinal direction of the main body portion 61a (the right side in FIG. 8A) via a screwing space S set to a predetermined distance L1. Specifically, the collar portion 29c of the auxiliary handle 29 is integrated with the main body portion 61a. That is, the auxiliary handle 29 of the fourth embodiment is not provided with the male screw 29a (see FIG. 2). *

The arm portions 61b and 61c are respectively formed with bolt insertion holes 61d through which the first and second support fixing bolts 64a and 64b are inserted. Thereby, the support body 61 is firmly fixed to the 1st, 2nd support body fixing | fixed part 62a, 62b via each arm part 61b, 61c. Here, a screwdriver (not shown) formed in a substantially L shape can enter the screwdriver space S. Therefore, the flange 29c of the auxiliary handle 29 does not hinder the work of fixing the support 61 to the housing 20. *

In the driver drill 60 of the fourth embodiment, the main body portion 61a of the support body 61 is provided so as to cover the outside of the first and second support body fixing portions 62a and 62b. The separation distance between the axis C3 of 61a) and the axis C1 of the rotary shaft 13 is an offset amount OS4 larger than the offset amount OS1 (see FIG. 1) of the first embodiment (OS4> OS1).

Here, you may form the support body 61 shown to Fig.8 (a) as shown in the modification of FIG.8 (b). Specifically, the support 66 shown in FIG. 8B is formed of plastic or the like, similar to the housing 20. Moreover, the thickness dimension of the main-body part 66a is made thicker than the thickness dimension of the main-body part 61a of the support body 61, and the 1st, 2nd internal thread 67a, 67b is formed in the longitudinal direction both sides of the main-body part 66a. Of these female screws 67a and 67b, the male screw 29a of the auxiliary handle 29 is fixed to one female screw 67a by screw connection. However, a rubber cap 30 as shown in FIG. 2B may be attached to the other female screw 67b to which the auxiliary handle 29 is not fixed. *

In the modification of the fourth embodiment, since the female thread 67a, 67b is provided in the main body portion 66a, the thickness dimension of the main body portion 66a along the vertical direction in the figure is the thickness dimension of the main body portion 66a of the support body 61. It is thicker than. As a result, the separation distance between the axis C3 of the auxiliary handle 29 (main body portion 66a) and the axis C1 of the rotary shaft 13 becomes an offset amount OS5 that is slightly larger than the offset amount OS4 shown in FIG. (OS5> OS4). *

In the driver drill 60 of the fourth embodiment formed as described above, the same operational effects as those of the first embodiment described above can be obtained. In addition, in the fourth embodiment, the support members 61 and 66 are provided so as to sandwich the first and second divided bodies 20a and 20b from the direction intersecting the extending direction of the grip portion 22. The strength of the housing 20, that is, the coupling strength of the first and second divided bodies 20a and 20b can be improved. *

Further, since the supports 61 and 66 are fixed by screw connection of the first and second support fixing bolts 64a and 64b and the first and second support fixing nuts 65a and 65b, the fixing strength of the auxiliary handle 29 is fixed. Can be improved. Therefore, it becomes possible to cope with a driver drill having a large output torque. *

[Embodiment 5] Next, Embodiment 5 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the second embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. *

FIG. 9 shows a plan view of the driver drill of the fifth embodiment as viewed from the side. *

As shown in FIG. 9, the driver drill 70 according to the fifth embodiment has an LED light (light emitting portion) that illuminates the periphery of the tip of the driver bit (tip tool) 14 as compared with the second embodiment (see FIG. 3). ) 71 is different. Specifically, the LED light 71 is provided on the grip portion 22 side as viewed from the rotation shaft 13 of the housing main body 21 forming the housing 20 and in a portion near the adjustment cap 16. *

The LED light 71 is disposed inside the housing body 21. Further, around the LED light 71, a light fixing portion 72, a wiring 73, and the like are arranged. Therefore, if the first and second handle fixing portions 41a and 41b are provided close to the LED light 71, there is a risk that the strength of the periphery of the first and second handle fixing portions 41a and 41b in the housing body 21 will be insufficient. Therefore, in the driver drill 70 according to the fifth embodiment, the first and second handle fixing portions 41a and 41b are arranged on the rear side (right side in the drawing) of the LED light 71. That is, the first and second handle fixing portions 41 a and 41 b are provided on the housing body 21 on the opposite side to the driver bit 14 side when viewed from the LED light 71 in the direction along the axial direction of the rotating shaft 13. That is, the first and second handle fixing portions 41 a and 41 b are provided on the rear side of the LED light 71. *

Further, a forward / reverse button 25 is disposed on the rear side of the LED light 71. Therefore, in the driver drill 70 according to the fifth embodiment, the first and second handle fixing portions 41a and 41b are overlapped with each other at a position where the first and second handle fixing portions 41a and 41b do not interfere with the forward / reverse rotation button 25, specifically, perpendicular to the paper surface of FIG. It is placed in a position that does not become necessary. *

In the fifth embodiment, since the first and second handle fixing portions 41a and 41b are arranged at positions where they do not interfere with the forward / reverse rotation button 25, the position of the axis C3 of the auxiliary handle 29 is determined according to the second embodiment. Compared with the shaft center C1 of the rotary shaft 13 is located. Therefore, the separation distance between the axis C3 of the auxiliary handle 29 and the axis C1 of the rotary shaft 13 is an offset amount OS6 slightly larger than the offset amount OS2 shown in FIG. 3 (OS6> OS2). *

Here, a two-dot chain line (imaginary line) with a symbol ID in the drawing schematically shows an irradiation direction of the LED light 71. *

Also in the driver drill 70 of the fifth embodiment formed as described above, the same operational effects as those of the second embodiment described above can be achieved. In addition, in the fifth embodiment, the periphery of the tip of the driver bit 14 can be reliably illuminated while providing the auxiliary handle 29 without interfering with the LED light 71. Therefore, it is possible to further improve the workability of screw tightening in the dark. *

[Sixth Embodiment] Next, a sixth embodiment of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the second embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. *

FIG. 10 is a plan view of the driver drill according to the sixth embodiment as viewed from the side, and FIG. 11 is a view taken along arrow E in FIG. *

As shown in FIGS. 10 and 11, the driver drill 80 according to the sixth embodiment includes two upper LED lights (light emitting units) 81 a and 81 b, as compared with the second embodiment (see FIG. 3), and The difference is that one lower LED light (light emitting section) 82 is provided. These three LED lights 81 a, 81 b, 82 illuminate the periphery of the tip portion of the driver bit (tip tool) 14. It should be noted that only one of the upper LED lights 81a and 81b and the lower LED light 82 may be used as long as the periphery of the tip of the driver bit 14 can be illuminated. *

The two upper LED lights 81a and 81b are provided on a portion of the housing body 21 forming the housing 20 on the side opposite to the grip portion 22 side when viewed from the rotating shaft 13 and near the adjustment cap 16. The two upper LED lights 81a and 81b are housed inside first and second light housing portions 83a and 83b provided in the first and second divided bodies 20a and 20b, respectively. The first and second light accommodating portions 83 a and 83 b are opened toward the tip portion of the driver bit 14. *

On the other hand, the lower LED light 82 is provided in the battery holding portion 23 that forms the housing 20. Specifically, the lower LED light 82 is provided on a side opposite to the rotating shaft 13 side along the extending direction of the grip portion 22 and near the driver bit 14 along the axial direction of the rotating shaft 13. Yes. Further, as shown in FIG. 11, the lower LED light 82 is provided so as to be sandwiched between the first divided body 20a and the second divided body 20b. The lower LED light 82 is covered with a transparent light cover 84 and is directed toward the tip of the driver bit 14. *

In the driver drill 80 of the sixth embodiment formed as described above, the same operational effects as those of the second embodiment described above can be obtained. In addition, in the sixth embodiment, the periphery of the tip of the driver bit 14 can be illuminated more reliably. Accordingly, it is possible to further improve the workability of screw tightening in the dark or the like. *

Further, since it is not necessary to provide LED lights around the slide switch 24 and the forward / reverse button 25, when the auxiliary handle 29 is disposed on the grip portion 22 side when viewed from the rotating shaft 13 of the housing 20, the arrangement of the auxiliary handle 29 is provided. A sufficient degree of freedom can be secured. *

However, any one of the upper LED lights 81a and 81b and the lower LED lights 82 may be omitted. For example, if the upper LED lights 81a and 81b are omitted, even when the auxiliary handle 29 is arranged on the side opposite to the grip portion 22 as viewed from the rotating shaft 13 of the housing 20, the degree of freedom of arrangement of the auxiliary handle 29 is increased. Enough can be secured. *

[Embodiment 7] Next, Embodiment 7 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. *

12 is a plan view of the driver drill according to the seventh embodiment when viewed from the side, FIG. 13 (a) is a sectional view of the housing and the handle fixing portion along the line FF in FIG. 12, and FIG. FIG. 14A is a cross-sectional view showing a modified example b of FIG. 13A, and FIG. 14B is a cross-sectional view showing a modified example c of FIG. 13A. Each figure is shown. *

As shown in FIG. 12 and FIG. 13A, the driver drill 90 according to the seventh embodiment is outside the first divided body 20a that forms the housing 20 as compared with the first embodiment (see FIG. 1). In addition, the auxiliary handle 29 is fixed through a handle holding member (handle fixing portion) 91 made of steel. As shown in FIG. 13A, the handle holding member 91 includes a fixed main body 92 having a substantially arc-shaped cross section following the outer shape of the first divided body 20a and a thin plate shape, and the fixed main body. And a boss portion 93 provided with a female screw 93a which is provided integrally with the central portion of 92 and to which the male screw 29a of the auxiliary handle 29 is fixed by screw connection. *

As shown in FIG. 12, when the driver drill 90 is viewed from the side, fixing screws (fixing members) 94 are provided at the four corners of the substantially rectangular fixing body 92. That is, the handle holding member 91 is fixed to the first divided body 20a by a plurality (four) of fixing screws 94. Here, as shown in FIG. 13A, the first divided body 20a is provided with four female screws 95 (only two are shown in the drawing) to which four fixing screws 94 are screwed. The second divided body 20b facing the first divided body 20a is also provided with four female screws 96 (only two are shown in the figure) to which the four fixing screws 94 are screwed. That is, the driver drill 90 can also handle right-handed and left-handed workers. *

The first and second divided bodies 20a and 20b may be provided with four female screws 95 and 96 each having a small amount of protrusion of the housing main body 21 radially outward. Therefore, the first and second divided bodies 20a and 20b can be applied to an inexpensive driver drill that does not include the auxiliary handle 29, and thus the parts can be shared.

As shown in FIG. 12, the axis C3 of the auxiliary handle 29 and the axis C1 of the rotary shaft 13 are orthogonal to each other under the state in which the handle holding member 91 is fixed to the first divided body 20a. Further, the position at which the boss portion 93 of the fixing main body 92 is provided is on a diagonal line formed by the four fixing screws 94. Thereby, the load transmitted from the auxiliary handle 29 is distributed to the fixing screws 94 substantially evenly. Therefore, even if each fixing screw 94 and each female screw 95, 96 are made small, sufficient fixing strength can be secured. *

Here, the handle holding member 91 and the auxiliary handle 29 shown in FIG. 13A may be formed as shown in “Modification a” in FIG. That is, in the modified example a, the auxiliary handle 29 is integrally formed with the handle holding member 91. Specifically, the boss portion 93 of the handle holding member 91 is omitted and the male screw 29a of the auxiliary handle 29 is omitted, and the flange portion 29c of the auxiliary handle 29 is integrated with the fixed main body 92 of the handle holding member 91. In the modified example a, since the boss portion 93 and the male screw 29a are not provided, the distance L2 between the flange portion 29c and the first divided body 20a can be shortened, and the size can be further reduced. *

Further, it may be formed as shown in “Modification b” in FIG. Specifically, the fixed portion between the boss portion 93 of the handle holding member 91 and the male screw 29a of the auxiliary handle 29 is on the side opposite to the grip portion 22 side (see FIG. 12) when viewed from the rotating shaft 13 of the housing 20. Is provided. The separation distance between the axis C3 of the auxiliary handle 29 and the axis C1 of the rotary shaft 13 is an offset amount OS7 slightly smaller than the offset amount OS1 shown in FIG. 1 (OS7 <OS1). *

Furthermore, in the modification b, the fixing structure of the handle holding member 91 and the first divided body 20a is different from the modification a. That is, in the modification a, the fixing screw 94 is directly screw-coupled to the female screw 95 integrally formed with the first divided body 20a. However, in the modification b, the handle fixing portion nut 97 and the handle fixing portion bolt 98 are provided. Are screwed together. That is, in the modification b, the fixing member for fixing the handle holding member 91 to the first divided body 20a is formed from the handle fixing portion nut 97 and the handle fixing portion bolt 98. *

A total of four handle fixing portion nuts 97 are embedded in predetermined portions of the first divided body 20a forming the housing 20 corresponding to the handle fixing portion bolts 98 (only two are shown in the figure). The four handle fixing portion bolts 98 pass through the four corners (see FIG. 12) of the fixing main body 92 and are screwed to the four handle fixing portion nuts 97, respectively. *

Note that four handle fixing portion nuts (fixing members) 99 are similarly embedded in the second divided body 20b. A rubber cap 100 as a cap member is attached to a portion where the handle fixing portion nut 99 of the other second divided body 20b that is not used for fixing the auxiliary handle 29 is provided. This prevents dust and the like from entering the cavity H inside the housing 20. *

Furthermore, it may be formed as shown in “Modification c” in FIG. Specifically, as compared with the modified example b, the fixing portion between the boss portion 93 of the handle holding member 91 and the male screw 29a of the auxiliary handle 29 is the grip portion 22 side (see FIG. 12). The separation distance between the axis C3 of the auxiliary handle 29 and the axis C1 of the rotary shaft 13 is the same offset amount OS7 as in the modified example b. That is, the modification c is different from the modification b in that the handle holding member 91 is turned upside down and fixed to the first divided body 20a. *

Also in the driver drill 90 of Embodiment 7 formed as described above, the same operational effects as those of Embodiment 1 described above can be achieved. In addition, in the seventh embodiment, the handle holding member 91 as the handle fixing portion can be removed. Therefore, compared to the first embodiment, the amount of protrusion of the housing 20 to the outside in the radial direction can be made smaller, and as a result, workability in a narrow portion can be further improved. *

Furthermore, since the handle holding member 91 (auxiliary handle 29) is fixed to the housing 20 by a plurality of fixing screws 94 (handle fixing portion bolts 98), the load transmitted from the auxiliary handle 29 to the housing 20 The fixing screws 94 can be dispersed. Therefore, it is possible to prevent the load from being concentrated in one place and to prevent the housing 20 from being damaged. *

In FIG. 13, the rubber cap 100 shown in FIG. 14 may be attached to the other female screw 96 that is not used for fixing the auxiliary handle 29. The handle holding member 91 may be formed of plastic or the like. Furthermore, as shown in FIG. 12, the fixing main body 92 is not limited to being fixed to the first divided body 20 a with the four fixing screws 94, but for example, with three fixing screws on the upper and lower sides (total of six). It may be fixed. In short, the number of fixing screws can be appropriately set according to the fixing strength required for the housing 20 of the handle holding member 91. *

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. In each of the above embodiments, a power drill is a driver drill. However, the present invention is not limited to this, and includes an electric motor having a rotating shaft for driving a tip tool, and a housing for accommodating the electric motor. The present invention can also be applied to other power tools, for example, power tools such as impact drivers.

DESCRIPTION OF SYMBOLS 10 ... Driver drill (electric tool), 12 ... Electric motor (electric motor), 13 ... Rotary shaft, 14 ... Driver bit (tip tool), 20 ... Housing, 20a ... 1st division body, 20b ... 2nd division body, 22 ... grip part, 27a ... first handle fixing part (handle fixing part), 27b ... second handle fixing part (handle fixing part), 28a ... first female screw (female screw), 28b ... second female screw (female screw), 28c ... First female screw (female screw), 28d ... second female screw (female screw), 29 ... auxiliary handle, 29a ... male screw, 30 ... rubber cap (cap member), 40 ... driver drill (electric tool), 41a ... first handle fixing portion (Handle fixing portion), 41b ... second handle fixing portion (handle fixing portion), 50 ... driver drill (electric tool), 51a ... first handle fixing portion (handle) Fixed portion), 51b ... second handle fixing portion (handle fixing portion), 53a ... first handle nut (handle nut), 53b ... second handle nut (handle nut), 55a ... first insulating member ( Insulating member), 55b ... Second insulating member (insulating member), 56 ... Rubber cap (cap member), 60 ... Driver drill (power tool), 61 ... Support, 64a ... First support fixing bolt (bolt) 64b ... second support fixing bolt (bolt), 65a ... first support fixing nut (nut), 65b ... second support fixing nut (nut), 66 ... support, 67a ... first female screw (Female screw), 67b ... second female screw (female screw), 70 ... driver drill (power tool), 71 ... LED light (light emitting part), 80 ... driver drill (power tool), 81a, 81b ... top Side LED light (light emitting part), 82 ... Lower side LED light (light emitting part), 90 ... Driver drill (electric tool), 91 ... Handle holding member (handle fixing part), 92 ... Fixed body, 93 ... Boss part, 93a ... Female screw, 94 ... Fixing screw (fixing member), 95 ... Female screw, 96 ... Female screw, 97 ... Nut for fixing the handle (fixing member), 98 ... Bolt for fixing the handle (fixing member), 99 ... For fixing the handle Nut (fixing member), 100 ... rubber cap (cap member)

Claims (15)

1. An electric tool comprising: an electric motor having a rotating shaft for driving a tip tool; and a housing main body that houses the electric motor and a housing that has a grip portion that extends downward from the housing main body and is gripped by an operator. And
   A handle fixing portion provided on a side surface of the housing located above the rotating shaft, and having a screw hole;
   An electric tool having a screw part coupled to the screw hole, and having an auxiliary handle that extends laterally from a side surface of the housing and is fixed to the handle fixing part.
2. The housing is formed of a first divided body and a second divided body that are divided in the left-right direction intersecting with the extending direction of the grip portion, and the handle fixing portion is formed by the first divided body and the second divided body. The electric tool according to claim 1 provided in each of the above.
3. The auxiliary handle is fixed to one of the handle fixing portions provided in the first divided body and the second divided body, and a cap member is attached to the other to prevent the inside of the handle fixing portion from being exposed. Item 3. The electric tool according to Item 2.
4. The electric tool according to any one of claims 1 to 3, wherein the screw hole is formed of a female screw, the screw portion is formed of a male screw, and the male screw is screwed to the female screw.
5. The power tool according to claim 4, wherein the female screw is configured not to penetrate the housing.
6. The handle nut is provided inside the handle fixing portion, the auxiliary handle is provided with a male screw, and the male screw is screwed to the handle nut from the outside of the handle fixing portion. The electric tool as described in.
7. The power tool according to claim 6, wherein an insulating member is provided between a distal end portion of the male screw that is screwed to the handle nut and the electric motor housed in the housing.
8. The power tool according to claim 2, wherein the handle fixing portion is formed by a support body that supports the first divided body and the second divided body from a left-right direction of the housing.
9. The power tool according to claim 8, wherein the support is fixed to each of the first divided body and the second divided body with a bolt and a nut.
10. An electric tool comprising: an electric motor having a rotating shaft for driving a tip tool; and a housing main body that houses the electric motor and a housing that has a grip portion that extends downward from the housing main body and is gripped by an operator. And
    A handle fixing portion provided on a side surface of the housing;
    An auxiliary handle fixed to the handle fixing part and extending laterally from a side surface of the housing,
    A light emitting unit that illuminates the tip tool is provided in the housing below the rotation shaft,
    The electric tool, wherein the handle fixing portion is provided in the housing on the rear side of the light emitting portion in a direction along the axial direction of the rotation shaft.
11. An electric tool comprising: an electric motor having a rotating shaft for driving a tip tool; and a housing main body that houses the electric motor and a housing that has a grip portion that extends downward from the housing main body and is gripped by an operator. And
    A handle fixing portion provided on a side surface of the housing below the rotating shaft;
    An auxiliary handle that extends laterally from a side surface of the housing and is fixed to the handle fixing portion;
    At least one of the housing above the rotating shaft and the grip portion on the opposite side of the rotating shaft along the extending direction of the grip portion is provided with a light emitting portion that illuminates the tip tool. Electric tool.
12. An electric tool comprising: an electric motor having a rotating shaft for driving a tip tool; and a housing body housing the electric motor and a housing having a grip portion extending downward from the housing main body and gripped by an operator. And
    A handle fixing portion provided on a side surface of the housing and fixed to the housing by a plurality of fixing members;
    An electric tool having an auxiliary handle fixed to the handle fixing portion and extending laterally from a side surface of the housing.
13. The handle fixing portion has a fixing main body fixed to the housing, and a boss portion provided on the fixing main body and having a female screw to which a male screw of the auxiliary handle is screwed. Electric tool.
14. The power tool according to claim 12, wherein the auxiliary handle is integrally formed with the handle fixing portion.
15. The fixed portion between the handle fixing portion and the auxiliary handle is provided on a side surface of the housing located above or below the rotation shaft of the housing. Electric tool.

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