JPS5939083Y2 - outside mirror - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an outside mirror.

In particular, while supporting the mirror by a mirror body,
The present invention relates to an outside mirror in which the mirror body is driven using an adjustment drive unit built into a support stay to change the angle of the mirror, thereby making it possible to adjust the visibility.

This type of mirror is often used as a vehicle rearview mirror.

However, a vehicle generates a considerable amount of vibration as it travels, and this vibration is transmitted to the mirror, causing the mirror to vibrate as well, resulting in blurred images and difficulty in visual recognition.

For this purpose, as shown in FIGS. 1 to 3, a rod-shaped attenuator C is suitably caulked and fixed behind a mirror body b that supports a mirror a, and a part of the attenuator C is attached to the inner wall surface of a fixed housing d. A device has been proposed in which the vibration of the mirror a is damped by slidingly elastically contacting the mirror a.

However, in this structure, the damper C, which serves as a vibration isolation spring, is pressed against the inner wall surface of the housing d and is slid.
The pressure contact load varies greatly depending on the shape of the housing d.

That is, as shown in the figure, it is good if the inner surface of the housing of the pressure contact point C' of the damper C is approximately flat, but if it is curved, the pressure contact load will change as the pressure contact point C' moves. However, the anti-vibration performance is no longer constant and becomes unstable.

Therefore, in this configuration, the shape of the housing d must be restricted so that the inner surface of the housing d is substantially flat in order to reduce the change in the pressure contact load.

Furthermore, since the attenuator C slides in the direction of the arrow A in the figure even when the mirror a changes its angle, there is also the problem that the load increases as a frictional resistance to the operation of the drive section e.

Furthermore, as the damper C rubs against the inner wall surface of the housing d as it vibrates and changes its angle, there is a problem in that the wall surface is abraded.

The purpose of this invention is to solve the above-mentioned problems.It is possible to maintain an almost constant pressure load regardless of the shape of the mirror device, has stable vibration resistance, and has low resistance to the drive unit. It is an object of the present invention to provide a vibration-resistant outside mirror that does not cause wear and tear.

An example of implementing the present invention will be described below with reference to the drawings.

As illustrated in FIGS. 4 to 6, the outside mirror of the present invention has an adjustment drive section 3 that drives a mirror body 2 that supports a mirror 1, thereby changing the angle of the mirror and adjusting the visibility. This is instead built into the support stay 4.

Further, in the present invention, a long groove 5 is formed in the mirror body 2, and a hole 6 is formed in the stay 4.

Using a linear spring 7, one end 71 of the spring 7 is inserted into the long groove 5 of the mirror body 2, and the other end 72 is inserted into the hole 6 of the stay 4.

In this case, the spring 7 is rotatable around the hole 6, that is, around the end 72 located in the hole 6, and the elastic force of the spring 7 is applied to the mirror body 2. It is arranged so that it is biased in the direction.

Therefore, as a result of this configuration, the spring 7 acts with a force that pushes the mirror body 2 upward in the figure, as explained using FIG. 4.

Therefore, it exhibits the effect of controlling the vibrations of the mirror 1 and mirror body 2.

In addition, in such an installation state, when the mirror body 2 is tilted vertically or horizontally by the drive unit 3, the spring 7 rotates around the hole 6 of the stay 4, as shown in FIG. And mirror body 2 with spring 7
The end portion 71 of the arm slides along the long groove 5 of the mirror body 2.

(The tilted state of the mirror body 2 is shown by a virtual line.

Arrows B and B' indicate the direction of this tilting.

Note that although FIG. 6 is originally a cross-sectional view, hatching has been omitted for clarity of illustration).

Therefore, even when the inner surface of the stay 4 is curved as in this example, since the spring 7 slides on the long groove 5 of the mirror body 2, there is almost no change in the load even if the position changes.

Therefore, the load change can be kept as small as possible, and the deterioration of the vibration damping function can also be kept to the minimum.

The action on the drive section 3 is also caused by the rotation of the spring 7, so its operating load is extremely small and has almost no effect.

Moreover, the structure is simple, the assembly is easy, and the cost is low.

The illustrated spring 7 is made of metal and has one end 71 connected to a body 75 through a bent part 73 and the other end 72 connected to a main body 75 through a coiled part 74 .

Furthermore, although the long grooves 5 are formed by providing the back wall 21 on the mirror body 2, they may also be provided by drilling the mirror body 2 itself.

As detailed above, the outside mirror of the present invention is
An adjustment drive unit that changes the angle of the mirror and adjusts the field of view by driving the mirror body that supports the mirror is built into the support stay, and the mirror body has a long groove and the stay has a hole. One end of a linear spring is inserted into the long groove and the other end is inserted into the hole, so that the spring can rotate around the hole and the elastic force of the spring is mirrored. The mirror device (
Regardless of the shape of the stay or housing, it is possible to maintain an almost constant spring pressure contact load, and the vibration resistance is stable without decreasing, and the resistance to the drive part is not a problem for practical use. This has the effect of not causing wear.

Note that, as a matter of course, the present invention is not limited to the illustrated embodiment.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a conventional example, FIG. 2 is a sectional view of one side thereof, and FIG. 3 is a side view of a portion of its interior. 4 to 6 show an example of the implementation of the present invention, in which FIG. 4 is a side sectional view, FIG. 5 is a front view, and FIG. 6 is a side view of a portion Iri for explaining the operation. 1...Mirror, 2...Mirror body
3... Drive unit, 4... Stay 5...
... Long groove, 6 ... Hole, 7 ... Spring, 71 ... One end, 72 ...
the other end.

Claims (1)

[Scope of utility model registration request] In an outside mirror in which a supporting stay has a built-in adjustment drive unit that changes the angle of the mirror and adjusts the field of view by driving a mirror body that supports the mirror, a long groove is formed in the mirror body, A hole is formed in the stay, one end of a linear spring is inserted into the long groove, the other end is inserted into the hole, and the spring is rotatable around the hole. An outside mirror characterized in that the elastic force of is applied to the mirror body.