JPS6021900B2 - Wiper device for vehicle side mirrors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiper device for a vehicle, and particularly to a wiper device for wiping a side mirror of a vehicle.

Vehicle side mirrors are considered indispensable for safe vehicle driving, but when driving in the rain, rainwater that adheres to the mirror surface significantly impairs the visual effect and reduces its functionality as a side mirror. There are drawbacks to doing so.

One possible solution to the above problem is to use the conventional swinging wiper device used to wipe the front windshield of vehicles, but the shape and dimensions of side mirrors and the space requirements for their installation are significantly different from those of window glass. Therefore, a wiper device for window glass cannot be applied as is.

In particular, in the case of a mirror with a cover, it is necessary to incorporate a wiper device within the cover, so the device must be able to be miniaturized.

Furthermore, for trapezoidal mirrors that widen downward and are used for the purpose of widening the field of vision, it is necessary to use something that can wipe the entire surface of the mirror without leaving anything behind. An object of the present invention is to provide a wiper device for a side mirror of a vehicle that has a simple mechanism and can be constructed in a small size. The object of the present invention is to provide a side mirror wiper device that can wipe the side mirror without leaving any residue.

Hereinafter, the present invention will be explained in detail based on the drawings showing embodiments thereof.

1 to 4, reference numeral 1 denotes a side mirror cover formed in the shape of a trumpet, which is fixedly supported on a vehicle body (not shown) via a support 1'.

Inside the cover, a side mirror 2 is disposed near the front entrance la, and a wiping mechanism driving motor 3 is disposed at the rear thereof.

The wiping mechanism drive motor 3 is a well-known swing type motor that has a built-in motion conversion mechanism that converts its rotation into reciprocating swing within a fixed angle range, and for the purpose described later, its output rotation shaft 4 The mari line is facing upward, and the angle Q is with respect to the mirror surface.
It is supported in an angular position on a pedestal 5 inside the mirror via a adjustable saddle 6.

The side mirror 2 is connected and supported by the motor 3 via an arm plate 7, so that the motor 3 is moved together with the mirror when adjusting the angle of the mirror.

One end of a lever 8 is fixedly connected to the output rotating shaft 4 of the motor 3, and a link 9 is rotatably connected to the end of the lever 8 by a support shaft at an intermediate portion thereof.

In the link, the tip of the link portion protruding to one side of the support koji 10 is a bent protrusion 9a, and this protrusion ga slides into the straight guide hole 12 of the track plate 11 fixedly held on the motor 3. The tip of the link part that is freely inserted and projects to the other side of the support shaft 10 reaches the upper green end of the mirror 2,
A supporting member 13 that is bent in a direction parallel to the mirror surface of the mirror 2 is extended from there, and a rubber blade 14 for wiping the mirror surface is supported on this supporting member 13. In the wiper device configured as described above, when the oscillating motor 3 is activated and its output rotating shaft 4 is reciprocated, the movement mechanism consisting of the lever 8, the link 9, and the track plate 11 causes
The tip of the link 9 connected to the holding member 13 moves horizontally in an approximate straight line along the upper green edge of the mirror, and as a result,
Since the supporting member 13 supporting the rubber blade 14 swings the mirror surface from side to side, the blade 14 performs a wiping operation on the mirror surface.

In that case, the motion of the blade 14 is approximately linear like the tip of the link, and therefore the distance from the mirror surface is not constant over its entire surface, but the difference in distance is a slight difference that can be followed by the elasticity of the rubber blade. Because it is a thing, the dispelling effect is not hindered.

If a convex mirror is used as the mirror, the above-mentioned spacing error can be reduced. Further, as shown in FIG. 5, according to the configuration in which the blade 14 is supported by the support plate 13 via the spring 15, the ability of the blade to follow the mirror surface is further improved. However, in the above configuration, if the axis of the output rotating shaft 1 of the motor is inclined at an angle Q with respect to the mirror surface, the angle 8 at which the swinging surface of the link 9 intersects with the mirror surface becomes an obtuse angle. The wiping surface of the blade 14 formed and supported by the supporting member 13 widens toward the end (fan-shaped)
Therefore, the downwardly expanding trapezoidal mirror 2 is wiped over its entire surface without leaving any residue left or right.

In the case where the movement mechanism including the link is arranged on a mirror surface, the rear part of the mechanism tends to be tilted up and the cover is also slightly larger, but as shown in FIG. By making the connection part with the blade holding member 13 into an inverted U-shape and raising the mirror position, the inclination of the entire mechanism is reduced, so it is possible to avoid increasing the size of the cover.

Also, depending on the shape of the cover, as shown in Figure 7,
The above mechanism can also be configured in reverse. Furthermore, as shown in FIG. 8, even if the output rotation axis 4 of the motor and the mirror surface of the mirror 2 are placed in a parallel relationship, the angle 0 at which the link 9 intersects with the mirror surface can be formed into an obtuse angle. .

In that case, the blade holding material 13 is tilted with respect to the mirror surface, and the distance between the two is no longer parallel, but if the blade 14 is used in accordance with that distance, the desired wiping effect on the mirror can be achieved. can get. Furthermore, in the above embodiment, the link 9 is guided in a straight line by a linkage mechanism between the protrusion 9a formed at one end thereof and the straight guide hole 12 of the track plate 11 that receives the protrusion 9a. However, as shown in FIG. 9, one end of another link 16 is rotatably connected to the end of the link 9, and the other end of the link 16 is rotatably supported on the cover side. The link 9 can be guided in the same manner as described above even by using a linkage mechanism that guides the end of the link 9 in an approximate straight line.

According to the configuration of the side mirror wiper device shown in each of the above embodiments, the following excellent effects can be obtained.

'11 The conventional swing type wiper motor can be used as is.

[2} The mechanism for swinging the blade is an extremely simple mechanism consisting of a lever 8, a link 9, and a track plate 11, and can be stored in a small space.

{31 The side mirror cover in which the blade swinging mechanism is incorporated has no major changes compared to its subordinates, except for an increase in external dimensions (depth and length), and is not made larger.

■ Most of the swinging mechanism for wiping the mirror is housed in the rear space of the mirror, and the only part that protrudes in front of the mirror is the blade holding material, so there is no risk of significantly obstructing the view of the mirror. do not have.

'5- By forming the angle 8 at which the link 9 intersects with the mirror surface to be an obtuse angle, when using a trapezoidal side mirror that expands downward, the entire surface can be wiped without leaving a triangular wiping residue on the left and right sides of the mirror.

Further, by changing the angle 8, the surface to be wiped by the blade can be made to correspond to the shape of a mirror surface.

As described above, according to the present invention, the swing type motor is disposed within the side mirror cover formed in a box shape so as to be movable in the forehead via the free handle. A side mirror located in the opening of the motor is supported, one end of a lever is fixed to the output rotating shaft of the motor, the other end of the lever is rotatably connected to a midway part of the link, and one end of the link has a A guide member that linearly guides the end of the link is connected, a blade for wiping the mirror surface is connected and supported at the end of the link, and the movement mechanism including the link is connected to the swing surface of the link and the mirror surface. Since the wiper devices are arranged in an angular position where the two sides intersect at a required angle, it is possible to obtain a wiper device for a side mirror that can be easily constructed and assembled, and can be made compact as a whole.

In particular, in this invention, by setting the angle at which the swinging surface of the link intersects with the mirror mirror surface to be an obtuse angle, when using a trapezoidal mirror with a wide downward spread of field of view, it is possible to prevent wiping from being left on the left and right sides of the mirror. It has the advantage of being able to wipe the entire surface.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a side mirror wiper device showing an embodiment of the present invention, Fig. 2 is a plan perspective view with the blade on the right, and Fig. 3 is a perspective view with the blade on the left. FIG. 4 is a perspective plan view of the state in which the blade is in the center. FIG. 5 is a perspective view of a blade support part according to another embodiment. FIG. 6 is a side mirror showing another embodiment. FIG. 7 is a partially cutaway side view of a wiper device for side mirrors showing still another embodiment; FIG. 8 is a main part of the wiper device for side mirrors showing still another embodiment. FIG. 9 is a side view of the main part of the swing mechanism showing another embodiment. 1... Side mirror cover, 1'... Pillar, la... Closing, 2... Side mirror, 3.
...Motor control, 4...Rotation axis, 5...Pass, 6...Free back hand, 7...Arm board, 8
...Lever, 9...Link, 10...
... Support shaft, 11 ... Race plate, 12 ... Guide hole, 13 ... Support material, 14 ... Blade, 15 ... ... Spring, 16...Second link. Figure lFigure 2Figure 3Figure 4Figure 6Figure 7Figure 5Figure 8Figure 9

Claims (1)

[Claims] 1. A rocking motor is disposed in a box-shaped side mirror cover so as to be tiltable via a universal joint, and this motor supports a side mirror located in an opening of the mirror cover. One end of the lever is fixed to the output rotating shaft of the motor, the other end of the lever is rotatably connected to a midway part of the link, and one end of the link is provided with a linear guide for the end. Guide members are linked together, a blade for wiping the mirror surface is connected to the other end of the link, and the movement mechanism including the link is in an angular position where the swinging surface of the link and the mirror surface intersect at an obtuse angle. A wiper device for a side mirror of a vehicle, characterized in that the wiper device is installed in a vehicle. 2. The swing type motor is supported on the rear side of the mirror placed in the side mirror cover with its output rotation axis facing upward via a universal joint on the cover side. 2. A wiper device for a side mirror of a vehicle according to claim 1, wherein said mirror is supported by a wiper device for a side mirror of a vehicle. 3. A guide member that linearly guides the end of the link,
A track plate on which the motor is mounted as a support is used, and a bent protrusion formed at the end of the link is slidably inserted into a straight guide hole bored in the track plate. A wiper device for a side mirror of a vehicle according to claim 1 or 2. 4. A guide member that linearly guides the end of the link,
3. The wiper device for a side mirror of a vehicle according to claim 2, wherein a second link is used, one end of which is supported by the cover, and the other end of which is linked to a link end.