JPS6337321Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric rearview mirror installed in an automobile, and particularly relates to a structure for mounting a drive unit within the mirror body.

Generally, an electric rearview mirror includes a mirror unit consisting of a mirror and a mirror base for supporting the mirror, and a drive unit for changing the angle of the mirror unit, which are installed inside the mirror body. The angle of the mirror can then be adjusted by remotely controlling the drive unit from the driver's seat or the like.

To assemble such an electric rearview mirror, first prepare a subassembly in which the mirror unit is attached to the drive unit, and then fix rail hardware that can hold the top and bottom of the drive unit inside the mirror body. The drive unit side was pushed into the mirror body and held between the rail fittings, and then a screw was passed through a hole drilled in the bottom wall of the mirror body and tightened from the outside to fix it. The screws are only used to prevent the subassembly held by the rail hardware from falling out, whereas the rail hardware has to have sufficient strength because the drive unit is held between the upper and lower wing parts.
It was necessary to have a shape that matched the size and model of the drive unit. Apart from this, there is also a structure in which a base plate without a rail is fixed inside the mirror body, the drive unit is tightened to the base plate using screws, and then the mirror unit is attached to the front of the drive unit. However, there was a problem in that it took time and effort to assemble the electric mirror.

This idea was devised by focusing on the various problems of the conventional mirror body.The base plate for mounting the drive unit is fixed to the inside of the mirror body.
A pair of left and right latching tongues cut and raised diagonally upward are formed on the upper part of the base plate, and on the other drive unit side, a hook-shaped cross-section is formed at a part corresponding to the latching tongues. A latching part is provided,
The latched portion is latched to the latching tongue, and a screw is inserted from the outside of the mirror body into a hole formed in the bottom wall of the mirror body, and is screwed into the threaded portion at the center of the lower part of the drive unit.

This invention will be explained below based on the embodiment shown in FIGS. 1 to 3 in which it is applied to a door mirror.

In FIG. 1, numeral 1 is a mirror body, 2 is a stay, and the mirror body 1 is attached to a window part (not shown) of an automobile or the like via this stay 2.

A base plate 4 for mounting a drive unit 3 is fixed in advance in the mirror body 1 with screws 5. A pair of left and right latching tongues 4a, 4a are provided on the base plate 4 at a slightly upper portion in FIG.
is cut diagonally upward. Further, a hole 7 for inserting a screw 6 is formed in the lower side wall portion of the mirror body 1 in FIG. 1, and a notch 4b is formed in the base plate 4 in correspondence with this hole 7.

On the other hand, a latching tongue piece 4 is provided on the drive unit 3 side.
Hooked portions 3a, 3a having a hook-shaped cross section are provided at portions corresponding to portions a and 4a, and a screw threading portion 3b corresponding to the screw insertion hole 7 is provided at the center of the lower part of the unit. 8 is a harness, and the drive unit 3 is connected to the driver's seat of the automobile (not shown) via the harness 8.
etc. In addition, 9a is a mirror, 9b
is a mirror base, and the mirror 9a is attached and fixed to this mirror base 9b to form a mirror unit 9.

Next, the assembly and operation of the drive unit 3 into the mirror body 1 will be explained.

First, the base plate 4 is fixed inside the mirror body 1 with 5 screws. On the other hand, the mirror unit 9 is attached and fixed to the drive unit 3 to form a subassembly.
a, 3a to the latching tongue piece 4 on the mirror body 1 side.
Hook a and 4a respectively. In this way, the mounting position of the subassembly within the mirror body 1 can be determined or the subassembly can be temporarily fixed by simply latching the latching tongues 4a, 4a and the latched portions 3a, 3a. Therefore, there is almost no trouble in determining the mounting position.

Next, the screw 6 is inserted through the hole 7 in the bottom wall of the mirror body and screwed into the threaded portion 3b at the center of the lower part of the drive unit. By screwing in the screw 6, the latched parts 4a, 4a are guided along the slopes of the latching tongues 3a, 3a on the base plate side, and the drive unit 3 is pulled down downward in FIG. In addition, the back surface of the drive unit approaches or comes into contact with the base plate side by the tightening force of the screw. As a result, the subassembly is firmly mounted within the mirror body 1.

In the above-mentioned embodiment, the case where this invention was applied to a door mirror was described, but this invention can also be applied to other electric mirrors such as a fender mirror.

As detailed above, according to this invention, a base plate for attaching the drive unit is fixed to the inside of the mirror body, and a pair of left and right latching tongues are cut out diagonally upward on the upper part of the base plate. The other side of the drive unit is provided with a hooked part with a hook-shaped cross section at a location corresponding to the hooking tongue, so the hooked part on the drive unit side is connected to the base plate side. By hooking the drive unit onto the hook, the drive unit can be positioned or temporarily fixed before it is finally fixed, making assembly easy. In addition, after latching in this way, the screw is inserted through the hole in the bottom wall of the mirror body and screwed into the threaded part at the center of the lower part of the drive unit, so that the latched part can be moved along the slope of the latching tongue. While being guided, the drive unit can be pulled down and the rear surface of the drive unit can be brought closer to or in contact with the base plate side by the tightening force of the screws, thereby making it possible to firmly mount the drive unit.

[Brief explanation of the drawing]

Figures 1 and 2 are exploded perspective views of an embodiment of the electric rearview mirror according to this invention, with Figure 1 showing the mirror body side and Figure 2 showing the subassembly side consisting of a mirror unit and a drive unit. Figures 1 and 3 are cross-sectional views showing the hooking portions, screw fixing portions, etc. of the electric rear view mirror assembled with the parts shown in FIGS. 1 and 2. DESCRIPTION OF SYMBOLS 1... Mirror body, 1a... Hole for screw insertion, 3... Drive unit, 3a... Latched part, 3
b... Screw fitting part, 4... Base plate, 4a
...Latching tongue piece, 6...screw, 9...mirror unit, 9a...mirror, 9b...mirror base.

Claims (1)

[Claims for Utility Model Registration] An electric rearview mirror in which a mirror unit consisting of a mirror, a mirror base for supporting the mirror, and a drive unit for changing the angle of the mirror unit are housed in a mirror body, comprising: A base plate for attaching the drive unit is fixed to the inside, and a pair of left and right hooking tongues cut diagonally upwards is formed on the upper part of this base plate, and on the other side of the drive unit, the above-mentioned hooking tongues are formed. A hooked portion having a hook-shaped cross section is provided at a portion corresponding to the tongue piece, and the hooked portion is hooked to the hooking tongue piece, and a screw is inserted into the hole formed in the bottom wall of the mirror body from the outside of the mirror body. An electric rearview mirror characterized by screwing the drive unit through the threaded part at the center of the lower part of the drive unit.