WO2020238842A1

WO2020238842A1 - Exterior mirror device

Info

Publication number: WO2020238842A1
Application number: PCT/CN2020/092048
Authority: WO
Inventors: 方永强
Original assignee: 法可赛(太仓)汽车配件有限公司
Priority date: 2019-05-31
Filing date: 2020-05-25
Publication date: 2020-12-03
Also published as: CN110126737A

Abstract

Provided is an exterior mirror device, comprising: a base plate (2) used for mounting a mirror, wherein the base plate (2) is provided with a support hole (201), a support shaft (3) is arranged in the support hole (201), and the base plate (2) is rotatably connected to a base (1) by means of the support shaft (3); a limiting rail groove (202) extending in an axial direction and arranged in the base plate (2); and a spring (4) arranged outside the support shaft (3) in a sleeving manner, wherein the spring (4) is provided with a limiting component (401) extending outwards in a radial direction, and the limiting component (401) is embedded into the limiting rail groove (202). The exterior mirror device has a rational structural design, and a retainer used for limiting and circumferentially fixing a spring in the prior art is discarded, such that production costs are economized, and the mounting procedures are reduced.

Description

Outside rearview mirror device

Cross reference related references

This application claims the priority of a Chinese patent application with an application number of 201910468218.2 and an invention title of "Exterior Rearview Mirror Device" filed on May 31, 2019, the entire content of which is incorporated into this application by reference.

Technical field

The invention relates to an exterior rearview mirror device.

Background technique

The description in this section only provides background information related to the disclosure of the present invention, and does not constitute prior art.

The foldable exterior rear-view mirror includes a base and a housing which are connected in rotation by a rotating shaft, a support shaft is arranged in the support hole of the base, and a spring is arranged outside the support shaft.

In order to prevent the spring from rotating with the support shaft during the folding or opening of the exterior rearview mirror, causing the spring to rub against the inner wall of the support hole and generate noise, the prior art such as CN100352691C, US20090086351A, US20040233557A, etc. all provide A known embodiment in which the stopper on the support shaft restricts and fixes the spring in the circumferential direction. In these known embodiments, the stopper does not hinder the compression of the spring to achieve axial compression, but can also prevent the spring from radial displacement or deformation, and reduce the noise generated by the radial displacement or deformation.

However, in actual production, the stopper usually has certain requirements for production, processing and installation, which inevitably increases production costs and installation procedures.

It should be noted that the above introduction to the technical background is only set forth to facilitate a clear and complete description of the technical solutions of the present invention and to facilitate the understanding of those skilled in the art. It should not be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the present invention.

Summary of the invention

Based on the aforementioned defects in the prior art, the embodiment of the present invention provides an exterior rearview mirror device, which, through a reasonable structural design, abandons the stopper used to limit and circumferentially fix the spring in the prior art. Reduce production costs and reduce installation procedures.

In order to achieve the above objective, the present invention provides the following technical solutions.

An exterior rearview mirror device, including:

A substrate for mounting a lens, the substrate has a support hole, a support shaft is arranged in the support hole, and the substrate is rotatably connected with the base through the support shaft;

A limit rail groove extending in the axial direction is provided on the base plate;

A spring sleeved outside the supporting shaft is provided with a limiting member extending radially outward; the limiting member is matched with the limiting groove.

Preferably, the top end of the support shaft is provided with a stopper, and the spring is biased between the stopper and the inner wall of the support hole.

Preferably, at least one of the limiting component and the inner wall of the limiting rail groove is made of a non-metallic material.

Preferably, a U-shaped structure is integrally provided at the top of the substrate, and the limiting rail groove is formed in the U-shaped structure.

Preferably, the inner wall of the supporting hole is recessed inward to form the limiting rail groove.

Preferably, the top end of the spring extends radially outward to form the limiting member.

Preferably, the limiting member is arranged on the outer wall of the spring and located between the two ends of the spring.

Preferably, both the limiting component and the limiting rail groove are multiple, and the plurality of limiting rail grooves correspond to the plurality of limiting components in a one-to-one correspondence.

Preferably, at least two of the limiting members are located on opposite sides of the spring in the circumferential direction.

Preferably, the limit rail groove has an upright surface facing the end of the limit member, and the distance between the end of the limit member and the upright surface is less than the distance between the outer wall of the spring and the supporting hole The distance between the inner walls.

In the exterior rearview mirror device of the embodiment of the present invention, the limit rail groove is provided on the base plate, and the limit component is arranged on the spring, so that the limit component and the limit rail groove can cooperate to realize the limit and circumference of the spring. To fix. In this way, the stopper used to limit and circumferentially fix the spring in the prior art is discarded, so that the production cost is reduced and the installation process is more convenient.

With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby.

Features described and/or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or substituted for features in other embodiments .

It should be emphasized that the term "comprising/comprising" when used herein refers to the existence of features, components, steps or components, but does not exclude the existence or addition of one or more other features, components, steps or components.

Description of the drawings

The drawings described herein are for explanation purposes only, and are not intended to limit the scope of the present disclosure in any way. In addition, the shape and proportional size of each component in the figure are only schematic, which are used to help the understanding of the present invention, and do not specifically limit the shape and proportional size of each component of the present invention. Under the teaching of the present invention, those skilled in the art can choose various possible shapes and proportional sizes according to specific conditions to implement the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a three-dimensional structure of an exterior rearview mirror device according to an embodiment of the present invention;

2 is a schematic cross-sectional view of the exterior rearview mirror device according to an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not meant to be the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and/or" as used herein includes any and all combinations of one or more of the related listed items. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

As shown in FIGS. 1 and 2, the exterior rearview mirror device according to the embodiment of the present invention includes a base 1 and a substrate 2. The base 1 is used to support the entire structure of the parts included in the exterior rear-view mirror device, and to fix the exterior rear-view mirror device on the vehicle. The base plate 2 is used to mount the lens. Specifically, the base plate 2 can carry the lens cover 101 on which the lens is arranged.

The base plate 2 has a supporting hole 201, a supporting shaft 3 is provided in the supporting hole 201, and the base plate 2 is rotatably connected with the base 1 through the supporting shaft 3. Therefore, the base plate 2 can rotate relative to the base 1 with the support shaft 3 as the pivot center, so as to realize the folding or opening of the exterior rearview mirror device.

The supporting shaft 3 is sheathed with a spiral spring 4, and the spring 4 is biased and arranged between the supporting shaft 3 and the inner wall of the supporting hole 201. Specifically, the top end of the support shaft 3 is provided with a stopper 301, which may be substantially in the shape of a circular ring. The stopper 301 is formed by extending the top end of the support shaft 3 radially outward, and is integrally constructed with the support shaft 3. The upper end of the spring 4 pushes against the stop portion 301, the lower end pushes against the inner wall of the supporting hole 201, and the spring 4 is in a compressed state.

In order to fix the spring 4 in the circumferential direction, the spring 4 is provided with a limiting member 401 extending radially outward, and the base plate 2 is provided with a limiting rail groove 202 extending in the axial direction, the limiting member 401 and the limiting groove 202 matches. The limiting component 401 extends into the limiting rail groove 202 and can move up and down in the limiting rail groove 202. Specifically, the spring 4 is compressed or reset in the axial direction, and can drive the limiting member 401 to move up and down. Therefore, the limiting rail groove 202 extending in the axial direction not only does not block the movement of the limiting member 401, but can also play a certain guiding role for the up and down movement of the limiting member 401.

As a result, the limit rail groove 202 can allow the limit member 401 to move up and down, so as to limit and stop the circumferential rotation thereof. Thus, the circumferential fixation of the spring 4 is achieved.

When the limiting component 401 moves in the limiting rail groove 202, the limiting component 401 may rub against the inner wall of the limiting rail groove 202. In order to reduce or even eliminate the noise caused by the friction between the limiting member 401 and the inner wall of the limiting rail groove 202, at least one of the limiting member 401 and the inner wall of the limiting rail groove 202 is made of non-metal.

Specifically, the material of the limiting member 401 is metal, and the material of the inner wall of the limiting rail groove 202 is non-metal; or the material of the limiting member 401 is non-metal, and the inner wall of the limiting rail groove 202 The material of which is made of metal; or, the material of the inner wall of the limiting member 401 and the limiting rail groove 202 is non-metal.

Therefore, even if the limit component 401 and the inner wall of the limit rail groove 202 are rubbed, the limit component 401 and the inner wall of the limit rail groove 202 are in contact between non-metal and metal, or between non-metal and non-metal. friction. Compared with the contact friction between metal and metal, it can greatly reduce or even eliminate noise.

Non-metals include, but are not limited to, flexible and elastic materials such as rubber, silicone, and plastic.

The limiting rail groove 202 may be a part of the structure of the substrate 2. Specifically, the top of the substrate 2 may be integrally provided with a U-shaped structure 203, and the limiting rail groove 202 is formed in the U-shaped structure 203. Both sides of the U-shaped structure 203 are provided with ribs 204 for supporting and fixing the U-shaped structure 203. The ribs 204 are integrally constructed with the U-shaped structure 203 and the base plate 2.

As a result, the U-shaped structure 203 can be molded and manufactured together with the substrate 2, thereby simplifying the manufacturing process. Moreover, compared with the prior art, by integrating the U-shaped structure 203 with the base plate 2, one component can be reduced, and the overall production cost can be reduced.

Of course, the method of forming the limiting rail groove 202 is not limited to this. In other feasible embodiments, the limiting rail groove 202 may be formed by recessing the inner wall of the supporting hole 201 inward. That is, the limit rail groove 202 is located in the supporting hole 201. In this embodiment, the limiting rail groove 202 can also form a part of the structure of the substrate 2 itself, and it can also be molded and manufactured together with the substrate 2 in the same manner as described above.

The base plate 2 is generally made of plastic material. When the limit rail groove 202 and the base plate 2 are integrally constructed, the inner wall of the limit rail groove 202 is also made of plastic material.

The limiting member 401 may be a part of the structure of the spring 4, and specifically may be formed by extending the top end of the spring 4 outward in the radial direction. That is, the stop member 401 and the spring 4 have an integral structure. Alternatively, the limiting component 401 may also be an additional or separate member, such as a strip or a block, which can be fixed on the outer wall of the spring 4 by welding, bonding, etc., and located between the upper and lower ends of the spring 4. .

When the limiting member 401 is formed by extending radially outward from the top end of the spring 4, that is, the limiting member 401 is located at the top of the spring 4 at this time, the limiting rail groove 202 is preferably formed by a U that is integrally provided on the top of the base plate 2. The shaped structure 203 is formed. Similarly, when the limiting component 401 is formed by an additional component arranged on the outer wall of the spring 4, that is, at this time, the limiting component 401 is located in the middle of the spring 4 and in the supporting hole 201, then the limiting rail groove 202 is preferably the supporting hole 201 The inner wall is recessed inward.

In this way, the limit component 401 can better cooperate with the limit rail groove 202 to minimize or even prevent the limit component 401 from falling off the limit rail due to the mismatch between the stroke of the limit component 401 and the position of the limit rail groove 202. Possible to move out of slot 202.

Further, the limiting component 401 and the limiting rail groove 202 may both be multiple, and the multiple limiting components 401 and the multiple limiting rail grooves 202 are preferably evenly arranged along the circumferential direction, and the multiple limiting rail grooves 202 are connected to each other. The multiple limiting components 401 correspond one to one. The one-to-one correspondence includes: the number of the limiting component 401 and the limiting rail groove 202 are equal, and each limiting component 401 is embedded in the corresponding limiting rail groove 202.

By arranging multiple sets of corresponding limit members 401 and limit rail grooves 202, the spring 4 can be prevented from contacting the inner wall of the supporting hole 201 at any position in the circumferential direction, thereby centralizing the spring 4 and ensuring the spring 4 has a better centering degree in the supporting hole 201.

Further, there are at least two limiting members 401 located on opposite sides of the spring 4 in the circumferential direction. The opposite side may be: the two limiting members 401 are located at the two ends of the spring 4 in the diameter direction, or the connecting line between the two passes through the center point of the spring 4. Accordingly, the limit rail groove 202 corresponding to the two springs 4 is also located on the opposite side of the substrate 2 in the circumferential direction.

In this way, the two limiting members 401 located on the opposite side of the spring 4 can cooperate with each other to prevent the spring 4 from bending and deforming in the direction connecting the two limiting members 401. When all the position-limiting components 401 provided on the spring 4 adopt this relative arrangement, the spring 4 can be better centered.

The specific implementation may be that the number of the limiting components 401 can be 2n, that is, an even number (for example, 4, 6,...), and the even number of limiting components 401 are evenly arranged along the circumferential direction. There are n groups of relatively arranged limiting members 401, and the n groups of relatively arranged limiting members 401 can correspondingly realize the centering of the spring 4 in n different ways.

It can be seen from the above description that the limiting component 401 can move up and down in the limiting rail groove 202. Therefore, when the spring 4 is not bent in the radial direction, the limiting member 401 should be in clearance fit with the limiting rail groove 202. Specifically, the limiting rail groove 202 has an upright surface facing the end of the limiting member 401, and the distance between the end of the limiting member 401 and the rising surface is smaller than the distance between the outer wall of the spring 4 and the inner wall of the supporting hole 201. In this way, once the spring 4 is bent in the radial direction, the limiting member 401 can push against the supporting surface of the limiting rail groove 202 before the spring 4 contacts the inner wall of the supporting hole 201, thereby avoiding contact friction between the spring 4 and the supporting hole 201 .

In the exterior rearview mirror device of the embodiment of the present invention, the limit rail groove 202 is provided on the base plate 2 and the limit member 401 is arranged on the spring 4, so that the limit member 401 can be matched with the limit rail groove 202 to achieve alignment. The limit and circumferential direction of the spring 4 are fixed. In this way, the stopper used to limit and circumferentially fix the spring 4 in the prior art is discarded, so that the production cost is reduced and the installation process is more convenient.

The above are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention based on the content disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

An exterior rearview mirror device, characterized in that it comprises:

A substrate for mounting a lens, the substrate has a support hole, a support shaft is arranged in the support hole, and the substrate is rotatably connected with the base through the support shaft;

A limit rail groove extending in the axial direction is provided on the base plate;

A spring sleeved outside the supporting shaft is provided with a limiting member extending radially outward; the limiting member is matched with the limiting groove.
5. The exterior rearview mirror device according to claim 1, wherein the top end of the support shaft is provided with a stopper, and the spring is biased between the stopper and the inner wall of the support hole.
The exterior rearview mirror device according to claim 1, wherein at least one of the limiting member and the inner wall of the limiting rail groove is made of a non-metallic material.
5. The exterior rearview mirror device according to claim 1, wherein a U-shaped structure is integrally provided at the top end of the substrate, and the limiting rail groove is formed in the U-shaped structure.
5. The exterior rearview mirror device of claim 1, wherein the inner wall of the supporting hole is recessed inward to form the limiting rail groove.
The exterior rearview mirror device according to claim 1 or 4, wherein the top end of the spring protrudes radially outward to form the limiting member.
The exterior rearview mirror device according to claim 1 or 5, wherein the limiting member is arranged on the outer wall of the spring and located between the two ends of the spring.
The exterior rearview mirror device according to claim 1, wherein the limiting member and the limiting rail groove are both multiple, and the plurality of limiting rail grooves and the plurality of limiting members One to one correspondence.
8. The exterior rearview mirror device according to claim 8, wherein there are at least two limiting members located on opposite sides of the spring in the circumferential direction.
The exterior rearview mirror device according to claim 1, wherein the limiting rail groove has a raised surface facing an end of the limiting member, and the end of the limiting member is connected to the rising surface The distance is smaller than the distance between the outer wall of the spring and the inner wall of the supporting hole.