JPS5828917Y2 - Support device for back mirror for vehicles - Google Patents

Description

[Detailed description of the invention] The present invention provides a support device for a vehicle rearview mirror, in particular, a spherical supported portion of the rearview mirror body is ejected toward the stay sheet of the rearview mirror support stay and the stay sheet. The mirror body is resiliently held by a spring receiver, and the mirror body can be rotated around the spherical supported portion by applying an external operating force to the mirror body.

In the conventional mirror support device of the above type, for example,
As shown in Publication No. 1-25316, the spherical supported portion of the mirror main body was directly sandwiched between the stay sheet, which is an inelastic body, and the spring receiver, so that the supported portion and the stay sheet Not only is it not possible to apply sufficient frictional engagement force between the stay and the spring holder, but the vibrations from the stay are transmitted directly to the mirror body without being buffered, and as a result, the mirror body becomes unstable when the vehicle is running. Vibration or positional displacement may occur due to vibrations or wind pressure, resulting in inconveniences such as shaking of the image, deviation of the field of view, or generation of vibration sounds.

Therefore, an object of the present invention is to provide a support device for a rearview mirror for a vehicle that is highly durable and has a simple structure, which does not cause the above-mentioned disadvantages even when subjected to vibrations and wind pressure when the vehicle is running. It is something.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.
A small-diameter anti-rotation serration 2 is integrally formed at the upper end, and a stay sheet 3, a lower elastic body 4, an upper elastic body 5, and a spring receiver 6 are fitted in this order into the serration 2 in a non-rotatable manner. Ru.

The stay sheet 3 has a recess 7 formed in its upper end surface, and the lower elastic body 4 made of rubber or synthetic resin is accommodated in the recess 7. The inner peripheral edge 3a of the upper end surface of the stay sheet 3 is formed into a continuous concave spherical surface 8.

The upper elastic body 5 made of rubber or synthetic resin is formed into a bowl shape, and its lower surface is formed into a convex spherical surface 9 and faces the concave spherical surface 8 .

Further, the spring receiver 6 is housed within the upper elastic body 5, and a convex spherical surface 11 formed on the lower surface thereof is in sliding contact with a concave spherical surface 10 on the inner surface of the upper elastic body 5.

A nut 12 is screwed onto the upper end of the stay 1, and a compression spring 13 is compressed between the nut 12 and the spring receiver 6, and the elastic force of the compression spring 13 is transmitted through the spring receiver 6 to the upper part. It acts to spring the elastic body 5 toward the lower elastic body 4.

The serrations 2 are provided between the upper and lower elastic bodies 5 and 4.
A spherical supported portion 15 of the mirror housing 14 is inserted, that is, the outer surface of the supported portion 15 having a convex spherical surface is connected to the concave spherical surface 8 and the concave spherical surface of the supported portion 15 is interposed. The inner surfaces thereof are engaged and supported by the convex spherical surfaces 9, respectively.

The supported portion 15 is elastically clamped between the upper and lower elastic bodies 5 and 4 by the elastic force of the compression spring 13, and is normally held in a predetermined position. It can freely rotate around the supported part 15.

A mirror 17 is supported on the front surface of the mirror housing 14 via an annular packing 16, and the mirror housing 14, the mirror 17, and the packing 16 are connected to the mirror body M.
It consists of

When the vehicle is running, vibrations from the vehicle body are transmitted to the mirror body M via the stay 1, and wind pressure from the traveling wind acts on the mirror body M, but the mirror housing 14 of the mirror body M is The supported part 15 is not only subjected to the elastic force of the compression spring 13, but also elastically clamped from above and below by the lower elastic bodies 5 and 4. 5 and 4, the mirror body M will not vibrate or change its position, causing the image to shake or the field of view to be distorted, and the vibration of the mirror body M will not cause chattering noise. do not have.

By applying an external force to operate the rearview mirror body M, the field of view of the mirror 17 can be adjusted without any problem.

As described above, according to the present invention, the spherical supported portion 15 of the rearview mirror main body M is supported by the stay sheet 3 of the rearview mirror support stay 1 and the spring receiver 6 that is elastically directed toward the stay sheet 3. In the support device for a rearview mirror for a vehicle, which is elastically held, the stay sheet 3 is provided with an inner circumferential edge 3a of an end surface having a recess 7, and a first elastic body 4 accommodated in the recess 7. forming a continuous concave spherical surface 8;
The concave spherical surface 8 supports the convex spherical outer surface of the spherical supported portion 15, and a second elastic force is provided between the concave spherical inner surface of the spherical supported portion 15 and the spring receiver 6. body 5
Since the spherical supported portion 15 of the mirror main body M
is elastically clamped by the two elastic bodies 4 and 5 interposed between the stay sheet 3 and the spring receiver 6, respectively, so that sufficient frictional engagement force can be applied between each of the above, and It can effectively absorb the vibrations transmitted from the stay 1 to the mirror body M. Therefore, even when the wind pressure or body vibration is large when the vehicle is running, the positional displacement of the rearview mirror will occur and the image will be affected. There is no vibration or disturbance of the field of view, and there is no fear of chattering noise caused by vibration of the mirror body M.

Furthermore, even if an excessive external force or impact is applied to the mirror main body M due to collision with another object, excessive shearing or compressive deformation of the first elastic body 4 can be prevented from occurring at the inner periphery of the end face of the stay sheet 3. Since this can be reliably prevented by the contact between the portion 3a and the spherical supported portion 15, the durability of the first elastic body 4 can be increased.

Furthermore, the wear of both the elastic bodies 4 and 5 can be automatically compensated for by the spring receiver 6, which is elastically directed toward the stay seat 3, pressing the second elastic body 5 toward the stay seat 3. , the spherical supported portion 1 is placed between the elastic bodies 4 and 5.
5 can be elastically clamped properly at all times, and is sufficiently durable for long-term use.

[Brief explanation of drawings]

The drawing is a longitudinal sectional side view of the main part of the device of the present invention. M... Rearview mirror main body, 1... Stay 3... Stay seat, 3a... Inner peripheral edge, 4... First A lower elastic body as an elastic body, 5... an upper elastic body as a second elastic body,
6... Spring holder, 15... Supported part.

Claims (1)

[Scope of utility model registration request] A vehicle rearview mirror in which a spherical supported portion 15 of a rearview mirror main body M is elastically held by a stay sheet 3 of a rearview mirror support stay 1 and a spring receiver 6 that is elastically released toward the stay sheet 3. In the support device, a continuous concave spherical surface 8 is formed by the inner peripheral edge 3a of the end face of the stay sheet 3 having the recess 7 and the first elastic body 4 accommodated in the recess 7. The concave spherical surface 8 supports the convex spherical outer surface of the spherical supported portion 15, and the concave spherical inner surface of the spherical supported portion 15 supports the spring receiver 6.
A support device for a rearview mirror for a vehicle, in which a second elastic body 5 is interposed between the support device and the second elastic body 5.