WO2012129826A1

WO2012129826A1 - Exterior rearview mirror for articulated trailer

Info

Publication number: WO2012129826A1
Application number: PCT/CN2011/073129
Authority: WO
Inventors: 罗宁生
Original assignee: 上海申视汽车新技术有限公司
Priority date: 2011-03-30
Filing date: 2011-04-21
Publication date: 2012-10-04
Also published as: CN102166990A

Abstract

An exterior rearview mirror for an articulated trailer includes a main rearview mirror (1). The exterior rearview mirror also includes a position sensor (6) for detecting the relative rotation angle between the front (4) and the body (5) of the trailer and at least one auxiliary mirror (2a, 2b, 2c). The main rearview mirror (1) and the auxiliary mirror (2a, 2b, 2c) are respectively connected with a drive shaft (10) by a slide coupling (11). The drive shaft (10) is connected with the position sensor (6). When the articulated trailer turns, the main rearview mirror (1) and the auxiliary mirror (2a, 2b, 2c) are respectively rotated at different angles, thus the blind spot is effectively eliminated.

Description

Exterior rearview mirror for spliced trailers

The present invention relates to an exterior rear view mirror for a towing vehicle, and more particularly to an exterior rear view mirror for a hitch type trailer. Background technique

Twisted trailer (single section) When driving in a straight line, the existing exterior mirrors can basically meet the requirements of the field of view, but when the vehicle turns, the front and rear trailers cannot be kept on the same axis. Above, a relative angle is generated, which ranges from 0° to 90°. When the relative angle is generated, the field of view on one side and the rear of the vehicle body becomes smaller as the range changes, and the blind spot gradually increases until the field of view Completely disappeared to form all blind spots. Referring to FIG. 1, the existing spliced trailer includes a front head 4 and a body 5, and the front 4 is provided with a steering wheel 8 and a main rear view mirror 1. The joint between the front end 4 and the body 5 is provided with a connecting rotating disc 3 and a position sensor. 6.

2 is a schematic structural view of a mechanical power rotating device of a conventional exterior rear view mirror. Referring to Figure 2, the existing electric exterior mirrors are mainly centered on the pivot, and are composed of two independent micro motors, permanent magnets, and Hall ICs that enable the rear view mirror to flexibly change positions in the up and down and left and right directions. . The rear view mirror is controlled by a switch that can move in multiple directions, allowing one micromotor to work or two to work simultaneously. 2 is a schematic view showing the structure of a mechanical power rotating device including a drive shaft 10, a sliding coupling 11 and a cam plate 13, and a position sensor 6 mounted on the vehicle body 5, the sliding coupling 11 The main mirror 1 is rotated under the control of the drive shaft 10. The cam plate 13 is provided with end positions 7a, 7b for controlling the rotation angle, and the cam plate 13 is provided with stoppers 9a, 9b to ensure the lens rotates within the normal range. .

The existing exterior exterior mirrors of the vehicle can not meet the requirements of the side and rear views of the body of the spliced car during cornering, because the car and the body will have large relative rotation angles when turning. As a result, a large area of blind spots will occur, which often leads to a large number of malignant traffic accidents, commonly known as dumplings. Therefore, it is necessary to provide a special exterior mirror for the spliced car, which can achieve the purpose of the side and rear view of the body when the spliced car turns, eliminate blind spots and hidden dangers, and avoid such accidents. Safeguard life and property. Summary of the invention

The technical problem to be solved by the present invention is to provide an exterior rearview mirror for a spliced trailer, which can effectively eliminate the blind spot of the spliced car during cornering and improve driving safety.

The technical solution adopted by the present invention to solve the above technical problem is to provide an exterior rearview mirror for a spliced trailer, comprising a main rearview mirror, wherein the exterior rearview mirror further comprises a detection front and a vehicle body. a position sensor of a relative rotation angle and at least one auxiliary mirror, the main rearview mirror and the auxiliary mirror being respectively connected to the drive shaft through a sliding coupling, the drive shaft being connected to the position sensor.

The above exterior rear view mirror for a hitch-type trailer, wherein the position sensor is mounted on a steering wheel or connected to a rotating disk.

The above exterior mirror for a spliced trailer, wherein the main mirror and the auxiliary mirror have an angle of rotation ranging from 0 ° to 45 °.

The exterior rearview mirror for a spliced trailer, wherein the exterior rearview mirror comprises three auxiliary mirrors, and the rotation angle of the main rearview mirror ranges from 0 ° to 15 °, and three auxiliary mirrors The angle of rotation is 15 ° ~ 25 °, 25 ° ~ 35 °, 35 ° ~ 45 °.

The exterior rearview mirror for a spliced trailer, wherein the main rearview mirror is a spherical mirror, the curvature of the lens is SR1800, the auxiliary mirror is a spherical mirror, and the curvature of the lens is SR120~SR800.

Compared with the prior art, the present invention has the following beneficial effects: The external rearview mirror for a spliced trailer is provided by setting a main rearview mirror and at least one auxiliary mirror, when the spliced trailer is turned, The main rearview mirror and the auxiliary mirror are respectively rotated at different angles, thereby effectively eliminating the blind zone and meeting the safety vision requirement. DRAWINGS

1 is a schematic structural view of a conventional spliced trailer;

2 is a schematic structural view of a mechanical mirror adjuster of a conventional exterior rear view mirror;

3 is a schematic structural view of an exterior rear view mirror of the spliced trailer of the present invention;

Figure 4 is a schematic view showing the rotational position of the combined exterior rear view mirror of the present invention; Figure 5 is a plan view of Figure 4;

6 is a flow chart of the exterior mirror control of the spliced trailer of the present invention.

1 main rear view mirror 2a, 2b, 2c auxiliary mirror 3 connected to the rotating disc

4 front 5 body 6 position sensor

7a, 7b End position 8 Steering wheel 9a, 9b Stop

10 drive shaft 11 slide coupling 13 cam disc concrete real

The invention will now be further described with reference to the drawings and embodiments.

3 is a schematic structural view of an exterior rear view mirror of the spliced trailer of the present invention.

Referring to FIG. 3, the exterior rear view mirror for a spliced trailer includes a main rear view mirror 1 , wherein the exterior rear view mirror further includes a position sensor 6 for detecting a relative rotation angle between the front end and the vehicle body. And at least one auxiliary mirror 2a, 2b, 2c, the main mirror 1 and the auxiliary mirrors 2a, 2b, 2c are respectively connected to the drive shaft 10 via a sliding coupling 11, and the drive shaft 10 is connected to the position sensor 6, The drive shaft 10 rotates the main mirror 1 and the auxiliary mirrors 2a, 2b, 2c connected thereto according to the relative rotation angle of the position sensor.

Figure 4 is a schematic view showing the rotational position of the combined exterior rear view mirror of the present invention; and Figure 5 is a plan view of Figure 4.

The exterior rear view mirror of the spliced trailer is provided by the present invention, and the position sensor 6 is mounted on the steering wheel 4 or connected to the rotating disk 3. The auxiliary mirror is 2~5 pieces, and the main mirror 1 and the auxiliary mirror have an angle of rotation ranging from 0° to 45°. Figure 4 to Figure 5 show the exterior mirrors with 3 auxiliary mirrors. When the hinged trailer is turned, the angle of rotation of the main mirror 1 ranges from 0° to 15 °, and the three auxiliary mirrors 2a, 2b The angle of rotation of 2c is 15 ° ~ 25 °, 25 ° ~ 35 °, 35 ° ~ 45 °.

The present invention can use the existing mechanical mirror adjuster for the main rearview mirror and each auxiliary mirror, as shown in Fig. 2, or other existing light-controlled, electronically controlled, mechanical rotating devices. More details. Since the main rearview mirror and the auxiliary mirror are rotated at different angles, the rotation angles of the main rearview mirror 1 and the auxiliary mirror are 0° to 45°, thereby effectively eliminating the blind zone, as shown in Fig. 7, meeting the safety visual field requirement.

In order to increase the field of view and reduce the dead zone, the exterior mirrors can usually be improved as follows:

1) Change the shape and increase the area. Increasing the area is a common method for solving the blind area of the rear view, but the large frame of the mirror is also large, which may cause an overall uncoordinated problem, and may also cause inconvenience to the vision.

2) Change the curvature of the mirror. Planar mirrors and spherical mirrors are two series of traditional mirrors, each of which has its own strengths, but all have obvious functional defects.

Planar mirror: The advantage is that the rear view object has no distortion, can truly reflect the true shape and actual distance of the object behind the car, and gives the driver more accurate judgment information. The disadvantage is that the rear view range is small, resulting in too many visual blind spots.

Spherical mirror: The feature is that the rear view object is reduced, the rear view range and the angle of view are enlarged, and the size and actual distance of the object behind the car cannot be truly reflected. The driver needs to go through a process of adaptation.

Since the invention adopts a main rearview mirror and a plurality of auxiliary mirrors, the main rearview mirror and the auxiliary mirror can respectively select different mirror surfaces, thereby taking into consideration the advantages of various mirror surfaces, for example, the main rearview mirror 1 is a spherical mirror, and the lens is The curvature is SR1800, the auxiliary mirror 2 is a spherical mirror, and the curvature of the lens is SR120~SR800.

Figure 6 is a flow chart showing the control of the exterior mirror of the spliced trailer of the present invention.

Referring to FIG. 6, the exterior mirror control method of the spliced trailer of the present invention includes the following steps:

(a) when the position sensor 6 detects that the relative rotation angle of the front end and the vehicle body is greater than 10°, the drive shaft 10 rotates to be connected thereto, and the main mirror 1 and the auxiliary mirrors 2a, 2b, 2c are sequentially synchronized or rotated at different angles; b) When the car returns to a straight line, all mirrors return to their original positions. The auxiliary mirrors are 2 to 5 blocks, and the range of rotation angles of the main mirror 1 and the auxiliary mirrors 2a, 2b, 2c are sequentially different by 15° to 5°.

The present invention has been disclosed in the above preferred embodiments, and is not intended to limit the invention, and the present invention may be modified and improved without departing from the spirit and scope of the invention. The scope of protection is defined by the terms of the claims.

Claims

Rights request:

An exterior rearview mirror for a spliced trailer, comprising a main rearview mirror (1), wherein the exterior rearview mirror further comprises a position sensor for detecting a relative rotation angle of the front end and the vehicle body ( 6) and at least one auxiliary mirror (2a, 2b, 2c), the main mirror (1) and the auxiliary mirror (2a, 2b, 2c) are respectively connected to the drive shaft (10) through the sliding coupling (11) The drive shaft (10) is connected to the position sensor (6).

The exterior rear view mirror for a spliced trailer according to claim 1, wherein the position sensor (6) is mounted on the steering wheel (8) or connected to the rotating disk (3).

The exterior rearview mirror for a spliced trailer according to claim 1, wherein the main rearview mirror (1) and the auxiliary mirror (2a, 2b, 2c) have an angular coverage range of 0° ~ 45°.

The exterior rearview mirror for a spliced trailer according to claim 3, wherein the exterior rearview mirror comprises three auxiliary mirrors, and the rotation angle of the main rearview mirror (1) The range of 0 ° ~ 15 °, the angle of rotation of the three auxiliary mirrors are 15 ° ~ 25 °, 25 ° ~ 35 °, 35 ° ~ 45 °.

The exterior rearview mirror for a spliced trailer according to claim 1, wherein the main rearview mirror (1) is a spherical mirror, the curvature of the lens is SR1800, and the auxiliary mirror (2a, 2b, 2c) is a spherical mirror with a curvature of SR120~SR800.