CN104646461B - A kind of hand-held pipe bender - Google Patents
A kind of hand-held pipe bender Download PDFInfo
- Publication number
- CN104646461B CN104646461B CN201310596614.6A CN201310596614A CN104646461B CN 104646461 B CN104646461 B CN 104646461B CN 201310596614 A CN201310596614 A CN 201310596614A CN 104646461 B CN104646461 B CN 104646461B
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- Prior art keywords
- roller
- fixture
- hand
- tubing
- component
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
Abstract
The present invention provides a kind of hand-held pipe bender, it is possible to be flexibly adapted to multiple tubing to be bent or the diameter of puncture needle.This hand-held pipe bender includes shell body, first handle, the first fixture and the second fixture, the first roller and the second roller, second handle, the first positioner, the second positioner.Described first roller and the second roller are fixed between the first fixture and the second fixture, the first roller and the spacing of the second roller is regulated by the length of the first fixture and the second fixture, tubing to be bent passes between the first roller and the second roller, therefore can realize bending the tubing of different-diameter by the length regulating the first fixture and the second fixture.
Description
Technical field
The present invention relates to field of mechanical technique, particularly a kind of hand-held pipe bender.
Background technology
The far-end of medical puncturing pin needs certain curved, as in heart room in some applications
During interval punctures, the puncture needle of far-end bending can accurately pierce through fossa ovalis, helps guide sheath to enter
Left atrium.For the heart structure of different patients, need to design different curved puncture needle,
Facilitate the operation of doctor.
Bending operation for puncture needle generally uses pipe bender to complete.CN102327937A
In disclose a kind of pipe bender, the periphery of its fast pulley circle is provided with multiple groove abreast,
The pipe that flexible sizes is different.But the diameter kind of the tubing that this pipe bender can bend
Class depends on the kind of groove, it is possible to the pipe diameter kind Limited Number of process.
Summary of the invention
In view of this, the present invention provides a kind of hand-held pipe bender, it is possible to be flexibly adapted to multiple
Tubing to be bent or the diameter of puncture needle.The other features and advantages of the invention will be in conjunction with implementing
Example is described further.
For achieving the above object, the present invention provides techniques below scheme:
A kind of hand-held pipe bender, including: shell body, there is base plate and be connected to this base plate
Two side plates of one group of opposite side, these two side plates are located on the first side of this base plate and are perpendicular to this
Base plate；First handle, its end is connected with described base plate, and is positioned at the second of described base plate
Side；First fixture and the second fixture, be separately fixed at the inner side of said two side plate, institute
State fixture adjustable length on the axially vertical direction with described first handle；First roller
With the second roller, the two is disposed in parallel between described first fixture and the second fixture, and
And respective two bottom surface circle centre positions respectively with described first fixture and described second fixture
Connect, when making the length of described first fixture and the second fixture be conditioned, described first rolling
The distance between axles of wheel and both the second rollers is adjusted for the proximal most position of side between
Place's clamping tubing；Second handle, its first end is connected with the side of described second roller, described
Second handle drives described the under the motion mode making its angle with described first handle diminish
Second wheel rotates around the axle of self, so that when described first roller and the pipe of the second roller clamping
When a part for material synchronizes to carry out described motion mode with described second handle, this tubing is in clamping
Place is bent over.
Alternatively, also include that the first positioner, described first positioner are fixed on described
On two handles, for spacing so that tubing is synchronized with the movement with described second handle to tubing.
Alternatively, the second positioner, described second positioner and described shell body are also included
Base plate scalable connect, be used for regulating this tubing and clamped by described first roller and the second roller
Position.
Alternatively, described second positioner has the base plate with described shell body is fixing to be connected
Screw rod, one end of close described first roller of this screw rod has one section of hollow structure, this spiral shell
Tangential direction at the proximal most position of the side that bar is parallel to described first roller and the second roller.
Alternatively, when described second handle is parallel to described tangential direction, described first location
The proximal most position of the side of the tubing position location on device, described first roller and the second roller,
And described screw rod three is on same straight line.
Alternatively, the side at described first roller and the second roller circumferentially has one or many
Individual groove.
Alternatively, described positioner has one or more positioning element, each described location
Parts are for positioning a described tubing.
Alternatively, the Shang You center of circle, one or two bottom surface angle index of described second roller；Institute
The one end of close described second roller stating the first fixture and/or the second fixture is porose, from institute
State visible described center of circle angle index in hole.
Alternatively, described first fixture includes: the first component of strip, and one end has along long
The lower concave part in degree direction；The second component of strip, one end has and is embedded in described lower concave part
Protuberance；Fixing device, is arranged on the wall of described lower concave part, and withstands on institute through this wall
State protuberance, make described protuberance be fixed in described lower concave part.
Alternatively, described first fixture includes: the first component of strip and the second of strip
Part；Connect the expansion hinge of described first component and second component.
Alternatively, described first fixture includes: the first component of strip, and one end has along long
The lower concave part in degree direction, the inwall of this lower concave part has multiple pit；The second component of strip；U
Shape connector, is embedded in the first end of described second component, and the end of this U-shaped connector two-arm is attached
Closely it is respectively arranged with the form fit of a projection, the shape of this projection and described pit；Two buttons,
It is embedded in the adjacent one end of described second component, and is positioned at outside the two-arm of described U-shaped connector
Side, when said two button is pressed, the two-arm of described U-shaped connector is adjacent to each other and energy
Enough insert in the lower concave part of described first component, and now said two button is released time institute
State the two-arm of U-shaped connector away from each other so that two projections on described U-shaped connector are blocked
In the pit of the inwall of the lower concave part of described first component.
Alternatively, described first roller and the second roller are fixed with described first by bearing pin respectively
Part and described second fixture connect.
According to technical scheme, two rollers of hand-held pipe bender are fixed on length can
On the fixture adjusted, the spacing of roller determine the diameter of the tubing that can bend, this structure
Make hand-held pipe bender can flexibly be adapted to bend the tubing of various diameter, particularly can be right
The tubing of diameter fairly small (such as 0.5MM to 3MM) bends.This hand-held bend pipe
Device can carry out the bending of a plurality of tubing simultaneously, and can show the bending degree of tubing in real time,
And can accurately regulate crooked place.Hand-held additionally, due to this pipe bender, carry and
Operation is all very convenient, is suitable to operative site and uses.
Accompanying drawing explanation
Accompanying drawing is used for being more fully understood that the present invention, does not constitute inappropriate limitation of the present invention.Wherein:
Fig. 1 is the assembling schematic diagram of a kind of hand-held pipe bender according to embodiments of the present invention；
Fig. 2 A, Fig. 2 B, Fig. 2 C are the schematic diagrams of fixture according to embodiments of the present invention；
Fig. 3 A, Fig. 3 B, Fig. 3 C are the schematic diagrams of the side of roller according to embodiments of the present invention；
Fig. 4 A, Fig. 4 B, Fig. 4 C are the structures of the first positioner according to embodiments of the present invention
Schematic diagram；
Fig. 5 is the schematic diagram of the structure of another kind of hand-held pipe bender according to embodiments of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the one exemplary embodiment of the present invention is explained, including this
The various details of bright embodiment are to help understanding, it should they are thought the most exemplary.
Therefore, those of ordinary skill in the art are it should be appreciated that can do the embodiments described herein
Go out various changes and modifications, without departing from scope and spirit of the present invention.Equally, in order to clearly
Chu, with simple and clear, eliminates the description to known function and structure in description below.
Fig. 1 is the assembling schematic diagram of a kind of hand-held pipe bender according to embodiments of the present invention.?
In this hand-held pipe bender shown in Fig. 1, first handle 1 hangs down with the base plate 21 of shell body 2
Direct-connected connecing, one group of opposite side of base plate 21 connects the first side plate 221 He being perpendicular to base plate 21
Second side plate 222.First fixture 4 and the second fixture 5 are separately fixed at the first side plate 221
Inner side with the second side plate 222.First fixture 4 can be identical with the second fixture 5 structure,
In bar shaped and length (i.e. along being perpendicular to direction shown in the arrow 100 of first handle 1 in figure)
Adjustable.
The first roller 3 and the second roller 12 in hand-held pipe bender are separately fixed at first and fix
Between part 4 and the second fixture 5.Specifically, connecting rod 8 sequentially passes through the first fixture 4
On the 41, second roller 12 axle center, hole hole the 121, second fixture 5 on hole 51；Connect
Bar 7 sequentially passes through the hole on hole the 231, first fixture 4 on the second side plate 222 (in figure not
Illustrate), hole the 52, first side plate 221 on hole 31, second fixture in the first roller 3 axle center
On hole (not shown)；Connecting rod 6 sequentially pass through the hole 232 on the second side plate 222,
Hole (not shown) on first fixture 4, the hole on the second fixture 5 are (in figure not
Illustrate), hole (not shown) on the first side plate 221.
One end of second handle 13 in hand-held pipe bender initially passes through the first positioner 14
Then cavity 141 is connected to the side of the second roller 12, and axial with the second roller 12
Vertically.Hand-held pipe bender also has the second positioner being connected with the base plate 21 of shell body 2.
When using hand-held pipe bender to carry out bend pipe operation, tubing is from the first roller 3 and the second rolling
Pass between wheel 12, position between the first roller 3 and the phase proximal side of the second roller 12 (under
Literary composition is referred to as " clip position ") it is used for clamping tubing, the tubing of these clip position both sides is respectively
Positioned by the first positioner 14 and the second positioner, so pulling second handle 13
In the case of making its angle with first handle 1 diminish, second handle 13 drives the second roller 12
Rotating, the part that now tubing is positioned by the first positioner 14 can be with second handle 13
Move relative to first handle 1, and the part that tubing is positioned by the second positioner is with first-hand
Handle 1 keeps geo-stationary, and the tubing of such clip position both sides produces relative motion, then manages
Material is bent near clip position.If being not provided with the first positioner 14, then need operator
Member by tubing after passing between the first roller 3 and the second roller 12, by tubing and second-hand
Then handle 13 pinches together pulls second handle 13.
A kind of structure of the second positioner be by shown in figure be fixed on inside base plate 21 flat
Platform part 10 and the knurled screw 9 through the hole 101 on platform part 10, in the figure of knurled screw 9
The upper end at visual angle has one section of hollow structure, in inserting this hollow structure for tubing thus determined
Position.Tangential consistent at clip position of knurled screw 9 and the first roller 3 or the second roller 12.
Because tubing is the thinnest, the hollow structure of knurled screw 9 has thinner internal diameter, institute therewith
Pass between two rollers with pipe fitting and be difficult to afterwards be directed at the hollow structure of knurled screw 9.
In order to avoid this situation, can be with the tubing position location on appropriately designed first positioner 14
(the tubing position location that positioning element 408 the most hereinafter is formed), makes to work as second-hand
Handle 13 be parallel to above-mentioned tangential time, this position location, clip position and knurled screw 9
Three is on same straight line, it is simple to pipe fitting passes between two rollers and enters the most smoothly
In the hollow structure of knurled screw 9.
When the length of the first fixture 4 and the second fixture 5 changes, the first roller 3 and the
The distance between axles of second wheel 12 also changes.And this distance between axles determines the tubing that can be bent
Diameter, so by regulating the first fixture 4 and spacing of the second fixture 5, it is possible to make hands
The formula pipe bender of holding is adapted flexibly to the diameter of multiple tubing.Alternatively, it is also possible to by changing the
The mode of the external diameter of one roller 3 and/or the second roller 12 realizes the first roller 3 and the second roller
The change of the spacing of 12, to this end, connecting rod 7 and connecting rod 8 can be selected for bearing pin, convenient disassembly,
First roller 3 and/or the second roller 12 can disassemble and use the roller of other diameters to replace
Change.
First fixture and the second fixture each can be the structure of two sections, these two sections with a setting
Formula connects and spacing is adjustable, and the first roller and the second roller are connected with these two sections respectively.First
Fixture and the second fixture can use the structure of the fixture in Fig. 2 A, Fig. 2 B, Fig. 2 C.
Fig. 2 A, Fig. 2 B, Fig. 2 C are the schematic diagrams of fixture according to embodiments of the present invention.Such as Fig. 2 A
Shown in, fixture 21 includes the first component 211 of strip and the second component 212 of strip, the
One end of one parts 211 has along its length the lower concave part 213 of (i.e. the direction of arrow in figure),
There is protuberance 214 one end of second component 212, is embedded in lower concave part 213.Separately there is fixing device
215, it is arranged on the wall of lower concave part 213, and withstands protuberance 214 through this wall, make convex
Go out portion 214 to be fixed in lower concave part 213.Fixing device 215 can be screw or screw rod, twists
Protuberance 214 can be regulated after pine and imbed the degree of depth in lower concave part 213, thus have adjusted solid
The length of locking member 21, has regulated and has tightened fixing device 215 afterwards so that fixture 21
Length is fixed.
Fixture 22 in Fig. 2 B includes the first component 221 and the second of strip of strip equally
Parts 222, the two is connected by expansion hinge 223.This expansion hinge 223 preferably has and compares
Big damping so that it is first component 221 and the gap ratio of second component 222 after aperture regulation
More stable.
Fixture 23 in Fig. 2 C also includes the first component 231 of strip and second of strip
Part 232.One end of first component 231 has lower concave part 233 along its length, this lower concave part
The inwall of 233 has multiple pit 234.U-shaped connector 235 is embedded in the first of second component 232
End, is respectively arranged with a projection near the end of the two-arm 2351,2352 of this U-shaped connector 235
2361,2362, the shape of this projection and the form fit of pit 234.Separately have two buttons 2371,
2372 adjacent one end being embedded in second component 232 respectively, and it is positioned at U-shaped connector 235
The outside of two-arm.U-shaped connector 235 makes to have between its two-arm certain elasticity because of its shape,
So, when two buttons 2371,2372 are pressed, the two-arm of U-shaped connector is adjacent to each other also
And be inserted in the lower concave part 233 of first component 231, discharge two buttons, U the most again
The two-arm of shape connector is the most away from each other so that two projections 2361,2362 are stuck in first component
In the pit 234 of the inwall of the lower concave part 233 of 231.Shown in figure be two projections 2361,
2362 are stuck in the situation in pit 234.Two projections are stuck in different pits, first component
231 and second component 232 just there is different spacing, make fixture 23 have different length.
The side of the first roller 3 and the second roller 12 can arrange many group grooves thus to wearing simultaneously
The a plurality of tubing crossed carries out spacing, thus can bend a plurality of tubing the most simultaneously.
Fig. 3 A, Fig. 3 B, Fig. 3 C are the schematic diagrams of the side of roller according to embodiments of the present invention.Figure
It is respectively arranged with a groove 511,521 on the first roller 51 in 3A and the second roller 52.Fig. 3 B
In, two rollers are respectively arranged with two grooves；In Fig. 3 C, two rollers are respectively arranged with three grooves.
These groove parts are distributed in roller side, and are parallel to the bottom surface of roller.
First positioner and the second positioner can also have the knot that can fix a plurality of pipe fitting
Structure, so that hand-held pipe bender can bend a plurality of tubing simultaneously.Fixed with first shown in Fig. 1
As a example by the device 14 of position, its structure that can use is respectively as shown in Fig. 4 A to Fig. 4 C.Fig. 4 A,
Fig. 4 B, Fig. 4 C are the schematic diagrams of the structure of the first positioner according to embodiments of the present invention.
Wherein 409 represent tubing.It is seen that first fixed in Fig. 4 A, Fig. 4 B, Fig. 4 C
Position device 41,42,43 has the positioning element 408 of one to three U-shaped, the most permissible
To one, two, three tubing position.For the second positioner, platform part
Multiple hole can be set on 10, and multiple knurled screw is set.
Fig. 5 is the schematic diagram of the structure of another kind of hand-held pipe bender according to embodiments of the present invention.
The basic structure of the hand-held pipe bender shown in Fig. 5 and the hand-held pipe bender shown in Fig. 1
Basic structure is similar.Second positioner of this hand-held pipe bender includes platform part 10, nut
11 and knurled screw 9, the effect of nut 11 is to make knurled screw 9 more firm.Fig. 5 shows
Go out the state that tubing 15 is inserted into the end of knurled screw 9.Because knurled screw 9 can compare
Move the most in its longitudinal direction, it is possible to accurately regulation tubing 15 is through the
The length of the end of knurled screw 9 is extended to, namely after one roller 3 and the second roller 12
Say that the crooked place of tubing 15 can relatively accurately be regulated.On the bottom surface of the second roller 12
There is central angle scale 128, the first fixture 4 has more hole, figure shows two holes
47,48, by the two hole it can be seen that central angle scale, and read current second roller 12
The angle turned over, such that it is able to learn the bending degree of tubing 15.
According to technical scheme, two rollers of hand-held pipe bender are fixed on length can
On the fixture adjusted, the spacing of roller determine the diameter of the tubing that can bend, this structure
Make hand-held pipe bender can flexibly be adapted to bend the tubing of various diameter, particularly can be right
The tubing of diameter fairly small (such as 0.5MM to 3MM) bends.This hand-held bend pipe
Device can carry out the bending of a plurality of tubing simultaneously, and can show the bending degree of tubing in real time,
And can accurately regulate crooked place.Hand-held additionally, due to this pipe bender, carry and
Operation is all very convenient, is suitable to operative site and uses.
Above-mentioned detailed description of the invention, is not intended that limiting the scope of the invention.This area
Technical staff, it is to be understood that depend on that design requires and other factors, can occur various
The amendment of various kinds, combination, sub-portfolio and replacement.Any within the spirit and principles in the present invention
Amendment, equivalent and the improvement etc. made, within should be included in scope.
Claims (12)
1. a hand-held pipe bender, it is characterised in that including:
Shell body, has base plate and two side plates of the one group of opposite side being connected to this base plate, and these are two years old
Individual side plate is located on the first side of this base plate and is perpendicular to this base plate；
First handle, its end is connected with described base plate, and is positioned at the second side of described base plate；
First fixture and the second fixture, be separately fixed at the inner side of said two side plate, institute
State fixture adjustable length on the axially vertical direction with described first handle；
First roller and the second roller, the two is disposed in parallel in described first fixture and second admittedly
Between locking member, and respective two bottom surface circle centre positions respectively with described first fixture and institute
State the second fixture to connect, when making the length of described first fixture and the second fixture be conditioned,
The distance between axles of both described first roller and the second roller is adjusted for side between
Proximal most position at clamp tubing；
Second handle, its first end is connected with the side of described second roller, described second handle
Drive under the motion mode making its angle with described first handle diminish described second roller around
The axle of self rotates, so that working as of the tubing of described first roller and the clamping of the second roller
Point with described second handle synchronize carry out described motion mode time, this tubing is bent in holding position.
Hand-held pipe bender the most according to claim 1, it is characterised in that also include
One positioner, described first positioner is fixed on described second handle, for tubing
It is spacing so that tubing is synchronized with the movement with described second handle.
Hand-held pipe bender the most according to claim 2, it is characterised in that also include
Two positioners, described second positioner is connected with the base plate scalable of described shell body, uses
In regulating the position that this tubing is clamped by described first roller and the second roller.
Hand-held pipe bender the most according to claim 3, it is characterised in that described second
Positioner has the base plate with described shell body and fixes the screw rod being connected, this screw rod close
One end of described first roller has one section of hollow structure, and this screw rod is parallel to described first roller
With the tangential direction at the proximal most position of the side of the second roller.
Hand-held pipe bender the most according to claim 4, it is characterised in that when described
When two handles are parallel to described tangential direction, tubing position location on described first positioner,
Proximal most position and the described screw rod three of the side of described first roller and the second roller are in
On same straight line.
Hand-held pipe bender the most according to claim 1, it is characterised in that described
Circumferentially there is one or more groove the side of one roller and the second roller.
Hand-held pipe bender the most according to claim 2, it is characterised in that described first
Positioner has one or more positioning element, and each described positioning element is for an institute
State tubing to position.
Hand-held pipe bender the most according to claim 1, it is characterised in that
The Shang You center of circle, one or two bottom surface angle index of described second roller；
One end of close described second roller of described first fixture and/or the second fixture has
Hole, visible described center of circle angle index from described hole.
Hand-held pipe bender the most according to claim 1, it is characterised in that described first
Fixture includes:
The first component of strip, one end has lower concave part along its length；
The second component of strip, one end has the protuberance being embedded in described lower concave part；
Fixing device, is arranged on the wall of described lower concave part, and withstands on described convex through this wall
Go out portion, make described protuberance be fixed in described lower concave part.
Hand-held pipe bender the most according to claim 1, it is characterised in that described first
Fixture includes:
The first component of strip and the second component of strip；
Connect the expansion hinge of described first component and second component.
11. hand-held pipe bendeies according to claim 1, it is characterised in that described first
Fixture includes:
The first component of strip, one end has lower concave part along its length, this lower concave part interior
Wall has multiple pit；
The second component of strip；
U-shaped connector, is embedded in the first end of described second component, this U-shaped connector two-arm
The form fit of a projection, the shape of this projection and described pit it is respectively arranged with near end；
Two buttons, are embedded in the adjacent one end of described second component, and are positioned at described U-shaped even
The outside of the two-arm of fitting, the two-arm of described U-shaped connector when said two button is pressed
Adjacent to each other and be inserted in the lower concave part of described first component, and now said two
When button is released, the two-arm of described U-shaped connector is away from each other so that described U-shaped connector
On two projections be stuck in described first component lower concave part inwall pit in.
12. according to the hand-held pipe bender according to any one of claim 1 to 11, its feature
Be, described first roller and the second roller respectively by bearing pin and described first fixture and
Described second fixture connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596614.6A CN104646461B (en) | 2013-11-22 | 2013-11-22 | A kind of hand-held pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596614.6A CN104646461B (en) | 2013-11-22 | 2013-11-22 | A kind of hand-held pipe bender |
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| Publication Number | Publication Date |
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| CN104646461A CN104646461A (en) | 2015-05-27 |
| CN104646461B true CN104646461B (en) | 2016-11-16 |
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| CN201310596614.6A Active CN104646461B (en) | 2013-11-22 | 2013-11-22 | A kind of hand-held pipe bender |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10137286B2 (en) * | 2015-10-30 | 2018-11-27 | Acclarent, Inc. | Apparatus for bending malleable guide of surgical instrument |
| CN110496923A (en) * | 2019-08-30 | 2019-11-26 | 四川龙腾铁路器材有限公司 | A kind of twisted wire clip frming forceps easy to operate |
| CN111346953B (en) * | 2020-03-09 | 2021-06-25 | 王大丰 | Bending processing equipment and processing technology for steam boiler connecting pipe fitting |
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| US2428237A (en) * | 1944-07-15 | 1947-09-30 | Imp Brass Mfg Co | Portable hand-operated tube bending tool |
| US4249407A (en) * | 1979-04-02 | 1981-02-10 | Fogleman Boyd C | Apparatus for bending steel tubes |
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| CN2117957U (en) * | 1991-11-23 | 1992-10-07 | 宫普选 | Portable tube bending machine |
| CN102343385A (en) * | 2011-11-17 | 2012-02-08 | 中国核工业二三建设有限公司 | Manual pipe bender |
| CN203599313U (en) * | 2013-11-22 | 2014-05-21 | 上海微创电生理医疗科技有限公司 | Handheld pipe bender |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100406323B1 (en) * | 2003-05-20 | 2003-11-28 | Daejin Hydraulic Equipment & T | Pipe bending machine |
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|---|---|---|---|---|
| US2428237A (en) * | 1944-07-15 | 1947-09-30 | Imp Brass Mfg Co | Portable hand-operated tube bending tool |
| US4249407A (en) * | 1979-04-02 | 1981-02-10 | Fogleman Boyd C | Apparatus for bending steel tubes |
| CN2075991U (en) * | 1989-10-28 | 1991-05-01 | 吴秀峰 | Manual roller pipe bender |
| CN2117957U (en) * | 1991-11-23 | 1992-10-07 | 宫普选 | Portable tube bending machine |
| CN102343385A (en) * | 2011-11-17 | 2012-02-08 | 中国核工业二三建设有限公司 | Manual pipe bender |
| CN203599313U (en) * | 2013-11-22 | 2014-05-21 | 上海微创电生理医疗科技有限公司 | Handheld pipe bender |
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| CN104646461A (en) | 2015-05-27 |
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