JP3179337B2 - door mirror - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door mirror of a motor vehicle which can be tilted in the front-rear direction with respect to a vehicle body.

[0002]

2. Description of the Related Art In order to prevent damage to a door mirror of an automobile from being damaged by an external force and to prevent damage to the pedestrian even if the pedestrian hits the door mirror, when an external force of a predetermined value or more acts on the door mirror. In general, it is configured to be able to smoothly tilt in the front-rear direction.

As described above, in order to smoothly tilt with an external force equal to or more than a predetermined value and to ensure that the mirror plate is defined at a predetermined angular position during normal use, a mirror plate is conventionally built in the mirror housing. A bracket that substantially supports the mirror plate is pivotally attached to a base of a fixed shaft erected at the free end of the base body extending to the side of the vehicle body, and is fixed to the fixed shaft from above the pivoted portion. The pivot portion of the bracket is elastically pressed against the base body by the wound coil spring, and a predetermined angular position is defined by a ball narrowly provided between the pivot portion and the base body. .

[0004]

In the above conventional structure, the bracket is engaged with the fixed shaft only by a pivot portion provided on the lower portion of the bracket for the purpose of giving a downward elastic force to the bracket.
According to this structure, when large vibrations occur in the vehicle body, such as when driving at high speeds or when traveling on rough roads, the brackets vibrate with respect to the fixed shaft, and the mirror plate also vibrates greatly, resulting in rear visibility. May decrease. The vibration of the mirror plate can be improved by increasing the spring constant of the coil spring or increasing the rigidity of the material of the bracket, but on the other hand, there is an inconvenience that the manufacturing cost increases.

The present invention has been devised to solve such disadvantages of the prior art, and its main objects are as follows.
An object of the present invention is to provide a door mirror configured to be able to suppress the vibration of the mirror plate without increasing the manufacturing cost.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a base body extending laterally of a vehicle body and having a fixed shaft erected at a free end thereof; A coil spring provided between a top surface of the pivot portion and an upper end of the fixed shaft, the pivot portion being pivotally attached to a base portion of the first member, and a mirror plate supporting portion that supports the mirror plate in a tiltable manner. And a mirror plate supported by the bracket, and a mirror housing accommodating the bracket and the mirror plate, wherein the mirror plate supporting portion of the bracket includes the pivot plate. Wearing part
Is a plate-like vertical portion extending upward from the outer end of the
One end is fixed to the upper part of the support plate , and a stabilizer is provided to pivotally connect the other end to the upper end of the fixed shaft. The bracket was supported on the fixed shaft at two places, and the coil spring was mounted on the fixed shaft.
Later, the stabilizer is attached to the upper end of the fixed shaft from above.
The bearing hole formed at the other end of the
A screw mounting hole formed at the inner end of the straight portion and the stabilizer
Insert the screw vertically into the screw insertion hole provided at one end of the
By screwing, the stabilizer and bracket are interchangeable.
This is achieved by providing a door mirror characterized in that it is adapted to be coupled to the door mirror.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below based on embodiments shown in the accompanying drawings.

FIG. 1 shows a door mirror to which the present invention is applied. The door mirror includes a mirror body 2 containing a mirror plate 1 and a base body 3 that pivotally supports the mirror body 2 so as to be tiltable in the front-rear direction of the vehicle body.

Inside the synthetic resin housing 4 of the mirror body 2, in addition to the mirror plate 1, a synthetic resin bracket 6 formed with a ball joint 5 for supporting the mirror plate 1 so as to be tiltable up and down and left and right. Is provided. The housing 4 and the bracket 6 are connected to each other by screwing a plurality of places. On the rear side of the bracket 6, an electric actuator 7 for tilting and driving the mirror plate 1 vertically and horizontally is held.

The base body 3 is composed of an inner base 8 made of die-casting which substantially supports the bracket 6 and an outer base 9 made of synthetic resin which covers the inner base 8. The inner base 8 is fixed to a mounting seat (not shown) provided on a triangular portion 12 between the upper edge 10 and the window frame 11, thereby being integrally connected to the door.

The bracket 6 of the mirror body 2 and the base body 3
As shown in FIG. 2, the inner base 8 is connected to each other by a connecting member 13 made of die casting. The connecting member 13 includes a horizontal plate portion 14 extending in a substantially horizontal direction along a portion of the inner base 8 extending to the side of the vehicle body, and a cylindrical fixed shaft 15 erected on the horizontal plate portion 14. Yes,
The horizontal plate portion 14 and the inner base 8 are connected to each other by screws. A pivot 16 provided below the bracket 6 is pivotally attached to the base of the fixed shaft 15.

At the upper end of the fixed shaft 15, there is provided a holding plate 17 which is retained by a retaining ring 18. The holding plate 17 is located between the holding plate 17 and the upper surface of the pivoting portion 16 of the bracket 6 in an appropriate manner. The compressed coil spring 19 is fixed to the fixed shaft 15.
It is provided in a mode that is externally provided. This coil spring 1
Due to the resilience of 9, the pivot portion 16 is resiliently pressed against the horizontal plate portion 14 of the connecting member 13. Thus, the bracket 6 is defined at a predetermined angular position with respect to the fixed shaft 15, and when an external force exceeding a predetermined value acts, the bracket 6 is tilted in the front-rear direction of the vehicle body and damage to the door mirror is prevented. Is done.

A harness 20 in which two pairs of lead wires are bundled is inserted into the inside of the fixed shaft 15 having a cylindrical shape, and the electric actuator 7 is driven by electric power supplied through the harness 20.
The two DC motors (not shown) built in the mirror plate 1 are driven, and the two reciprocating rods 21 protruding from the side and the lower side of the ball joint 5 individually advance and retreat, and the mirror plate 1 is moved.
Are tilted up and down and left and right.

The fixed shaft 15 is formed to project from the upper end of the coil spring 19 by a predetermined dimension.
3, a bearing hole 23 formed at the other end of the stabilizer 22 having one end fixed to the upper part of the bracket 6 is inserted. This stabilizer 22
It is formed of a synthetic resin material, and is provided at the inner end of a plate-like vertical portion 24 extending upward from the outer end of the pivotal attachment portion 16 to support the mirror plate 1 and hold the electric actuator 7. Screws are screwed into a total of two places: a screw mounting hole 25 formed and a screw mounting hole 27 formed at the upper end of a mounting stay 26 erected on the pivot 16 on the back side of the fixed shaft 15. It has become so.

These screw mounting holes 25 and 27 are both drilled in the vertical direction.
After mounting, the bearing hole 23 of the stabilizer 22 is fitted into the upper end 15a of the fixed shaft 15 from above, and the screw mounting holes 25 and 27 and the screw insertion holes 28 provided in the stabilizer 22 corresponding to these are provided.・ Match with 29,
By screwing the screws 30 and 31 into these in the vertical direction, the stabilizer 22 and the bracket 6 are connected to each other. As described above, the bracket 6 is supported by the fixed shaft 15 at two upper and lower positions.

In the present embodiment, the stabilizer 22 is formed of a synthetic resin material. However, the present invention is not limited to this. For example, a die-cast product made of an aluminum alloy material or a plastic processed product of a steel plate is used. But it is good. It is preferable to use a synthetic resin as in the present embodiment because it can be manufactured at low cost, and sufficient rigidity can be ensured even in suppressing the vibration of the mirror plate 1.

[0017]

As described above, according to the present invention, the bracket for supporting the mirror plate is supported by the fixed shaft at two positions vertically separated by the pivotal portion and the stabilizer with the coil spring interposed therebetween. Vibration of the bracket with respect to the fixed shaft, which causes vibration of the plate, is greatly suppressed, and a very remarkable effect can be obtained in preventing lowering of rear visibility. Moreover, the stabilizer is secured at one end to the top of the mirror plate support portion of the bracket, Ri <br/> Oh in what pivotally the other end to the upper end of the fixed shaft, after mounting the coil spring on the fixed shaft, a fixed shaft upon
Bearing hole formed at the other end of the stabilizer from above at the end
And the screw formed at the inner end of the vertical part
The mounting hole and the screw insertion hole provided at one end of the stabilizer
Screw the screws into the vertical direction to
Since the racket and the racket are joined to each other , the assembling is easy, and there is a great effect in suppressing an increase in manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire door mirror to which the present invention is applied.

FIG. 2 is a front view of the door mirror shown in FIG.

FIG. 3 is a cutaway top view showing the housing of the mirror main body shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mirror plate 2 mirror body 3 base body 4 housing 5 ball joint 6 bracket 7 electric actuator 8 inner base 9 outer base 10 upper edge 11 window frame 12 triangular portion 13 connecting member 14 horizontal plate portion 15 fixed shaft 15a upper end portion 16 pivot portion 17 Holding plate 18 Retaining ring 19 Coil spring 20 Harness 21 Advancing / retracting rod 22 Stabilizer 23 Bearing hole 24 Vertical part 25 Screw mounting hole 26 Mounting stay 27 Screw mounting hole 28/29 Screw insertion hole 30/31 Screw

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-249 (JP, U) JP-A 5-67540 (JP, U) JP-A 4-67545 (JP, U) JP-A 62- 64651 (JP, U) Japanese Utility Model Application No. 4-93231 (JP, U) Japanese Utility Model Application No. Sho 62-86249 (JP, U) Japanese Utility Model Application Model No. 4-2745 (JP, U) Japanese Utility Model Utility Model No. 64-16943 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60R 1/074

Claims (1)

(57) [Claims] 1. A base body extending laterally of a vehicle body and having a fixed shaft erected at its free end, a pivot portion pivotally mounted on a base of the fixed shaft, and a mirror plate can be tilted. A bracket provided with a mirror plate supporting portion supported on the bracket, and provided with rotation resistance by a coil spring contracted between an upper surface of the pivot portion and an upper end of the fixed shaft; and a bracket supported by the bracket. A mirror plate, and a mirror housing that houses the bracket and the mirror plate, wherein the mirror plate supporting portion of the bracket is an outer end of the pivotal portion.
A plate-shaped vertical portion extending upward from the mirror plate support.
A stabilizer having one end fixed to the upper portion of the holding portion and the other end pivotally attached to the upper end of the fixed shaft is provided at two locations vertically separated by the stabilizer and the pivotal attachment portion of the bracket with the coil spring interposed therebetween. in to support the bracket to the fixed shaft, after mounting the coil spring to the fixed shaft, the fixed
Formed on the other end of the stabilizer from above at the upper end of the shaft
With the bearing hole, and the inner end of the vertical part
Provided at one end of the stabilizer with the formed screw mounting hole
Screw the screw vertically into the screw insertion hole
The stabilizer and the bracket are connected to each other.
A door mirror characterized in that it is made to be.