JPH0214982Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a visor electric moderation device for folding door mirrors. Specifically, the invention relates to a visor electric moderation device for folding door mirrors. The electric actuator is rotatably mounted in the normal upright position protruding outwards and the stowed position tilted backwards or forwards and backwards, and the rotational operation is performed electrically by remote control from inside the vehicle. This is to ensure moderation and eliminate looseness between the stay and the visor.

Conventional technology Conventionally, in this type of visor electric device,
A shaft gear is rotatably attached to the rotating shaft of the stay, and a clutch pressure plate is provided that presses the shaft gear to make it unrotatable to the stay rotating shaft.A visor drive motor is attached to the visor side, and the motor and the shaft gear are connected to each other. A reduction gear is interposed between the visor and the visor, and when the gear is attached to the visor side and the outer periphery of the non-rotatable shaft gear is rotated by the clutch pressure plate driven by the motor, the visor rotates back and forth around the rotation axis. , so that it can be folded down.

In the above-mentioned device, the clutch pressure plate is used only to moderate the shaft gear and the stay, so the accumulation of bumps in each gear between the motor gear and the shaft gear tends to cause backlash between the visor and the stay. There was a problem in which the so-called chatter phenomenon occurred because it was not held securely.

Purpose of the invention This invention aims to solve the above-mentioned conventional problems, and by providing a moderation plate that makes the visor side unrotatable, the moderation between the visor and the stay is directly achieved, and the looseness of the visor is prevented. It is intended to prevent

Structure of the invention This invention was made to achieve the above-mentioned object, and includes a visor rotation shaft protruding from a stay attached to the outer surface of the door, and a visor rotation hole in which a mirror is tiltably supported on the rotation shaft. In the folding door mirror in which the visor is rotatable at least rearward about the rotation axis, a shaft gear is rotatably fitted to the rotation axis, and a plane perpendicular to the rotation axis of the shaft gear is rotatably fitted to the rotation axis. While forming a plurality of moderation engagement portions on both the upper and lower end surfaces,
A moderation plate having a moderation engagement portion that engages with each moderation engagement portion is fitted to the rotating shaft facing both upper and lower sides of the shaft gear, and a moderation spring is compressed between the lower moderation plate and the visor, A rotation stopper is provided protruding from the outer periphery of the side moderation plate, and the rotation stopper engages with a rotation stopper provided on the visor side so as to be non-rotatable and movable in the direction of the rotation axis, while rotating the upper moderation plate. non-rotatably mounted on the shaft,
The present invention provides a visor electric moderation device for a door mirror, characterized in that the shaft gear is configured to mesh with a reduction gear rotated by a drive motor attached to the visor.

Embodiments Hereinafter, this invention will be explained in detail with reference to embodiments shown in the drawings.

In the figure, 1 is a stay, 2 is a visor, 3 is a mirror, and 4 is a door body. The stay 1 is attached to the outer surface of the vehicle body 4 with screws 5, and a support arm 1a extending almost horizontally from the bottom of the stay 1 has a rotating shaft 1b facing upward, and the visor 2
The visor 2 is rotatably attached to the stay 1 by fitting the shaft hole 2a into the rotating shaft 1b. A support plate 6 is attached within the visor 2, and a spherical bearing 6a provided on the support plate 6 supports a mirror holder 7 holding the mirror 3 in a freely tiltable manner. 4a is an outer panel of the vehicle body, 4b is an inner panel, and 4c is an interior material.

The rotating shaft 1b includes an upper moderation plate 10, a shaft gear 11, and
A lower moderation plate 12 and a moderation spring 13 are fitted. The above shaft gear 11 has a center shaft hole 1
1a is rotatably fitted to the rotating shaft 1b, and a gear 11b is formed on its outer peripheral surface, and the upper end surface 11c and the lower end surface 11d, which are planes perpendicular to the rotating shaft, extend radially from the shaft hole 11a as shown in the figure. V-groove-shaped moderation engaging portions 11e and 11f are formed at the same position and pitch on the upper and lower sides. An upper moderation plate 10 and a lower moderation plate 12 are disposed facing each other on both upper and lower sides of the shaft gear 11, and these moderation plates 1
0 and 12, moderation engagement portions 10a and 12a protruding into V-shaped strips that engage with the moderation engagement portions 11e and 11f.
is formed. The center shaft hole 10b of the upper moderation plate 10 has a rectangular shape and is non-rotatably attached to the stay rotation shaft 1b, so that the moderation plate 1
When the moderation engagement portion 10a of the shaft gear 11 and the moderation engagement portion 11e of the shaft gear 11 engage with each other, the shaft gear 11
is made so that it cannot be rotated. Further, the lower moderation plate 12 is formed with a rotation stopper 12b that protrudes downward from the outer circumference, and the rotation stopper 12b
is engaged with a rotation stopper 15 protruding from the visor 2 side so that it cannot rotate but is movable in the direction of the rotation axis 1b. Therefore, the moderation engagement portion 12a of the lower moderation plate 12 and the moderation engagement portion 11 of the shaft gear 11
When f is engaged, the shaft gear 11 is fixed to the stay rotating shaft via the upper moderation plate 10, so that the visor 2 is locked against the stay 1 so that it cannot rotate.

On the other hand, a visor drive motor 21 is attached to a stay cover 20 fixed to the stay side end surface of the visor 2, and a motor output shaft 2 parallel to the rotation axis 1b is mounted.
A motor gear 22 is attached to the shaft gear 1a, and the motor gear 22 is engaged with an idle gear 23 supported by a bearing 20a protruding from the visor cover 20 to reduce the speed. Outer gear 11b
It meshes with. The rotation stopper 15 provided on the visor side is formed at the tip of the bearing 20a.

Next, to explain the operation of the above device, when the visor 2 is in an upright state protruding outward as shown in the figure, the moderation engaging portions 11e, 1 of the shaft gear 11
1f engages with the moderation engaging portions 10a, 12a of the upper and lower moderation plates 10, 11, and the visor 2 is connected to the stay 1.
Locked in standing position. In this state, when the motor 21 is driven by remote control from inside the vehicle and the motor gear 22 is rotated, the gears 23 and 24 are rotated in conjunction. The shaft gear 11 has an upper moderation plate 10
Since the moderation engaging portions 11e and 10a are engaged and fixed, the gear 11b of the shaft gear 11 and the gear 24 are engaged, so that the gear 24 moves around the outer circumference of the shaft gear 11 in the counterclockwise direction in FIG. Then, the visor 2 rotates to the retracted position where it falls backward as shown by the chain line. When the visor 2 rotates, the lower moderation plate 1 engages the rotation stopper 15 on the visor 2 side and the rotation stopper 12b so as to prevent rotation.
2 compresses the moderation spring 13 and moves downward in the rotational axis direction, and the moderation engagement part 12a is disengaged from the moderation engagement part 11f of the shaft gear 11, and the visor 2
When the visor 2 rotates to the retracted position, the detent engaging portion 12a engages the detent engaging portion 11f of the shaft gear 11, and locks the visor 2 in the retracted position.

When the motor 21 is rotated in the opposite direction in the retracted position, the visor 2 rotates to the upright position in the same manner as above, and the lower moderation plate 1 is rotated in the upright position.
The second moderation engagement portion 12a engages with the moderation engagement portion 11f of the shaft gear 11. In the standing position,
Upper and lower moderation engagement portions 11e, 11 of shaft gear 11
f is the moderation engagement portion 1 of the upper and lower moderation plates 10 and 12;
0a and 12a, the shaft gear 11 is held without wobbling due to the backlash of each gear. Therefore, the lower moderation plate 12, which is biased and engaged with the shaft gear 11 by the moderation spring 13, is also locked in a fixed position.
The visor 2, which is non-rotatably engaged with the moderation plate 12, is locked in the upright position without wobbling.

Effects of the invention As is clear from the above explanation, the door mirror visor electric moderation device according to this invention has the following effects:
The shaft gear meshes with the gear rotated by the visor drive motor, and the moderation engagement portions formed on both upper and lower sides of the shaft gear engage with the upper and lower moderation plates, and the upper moderation plate connects the gear and the stay, and the lower moderation plate connects the stay and the visor. By ensuring moderation, there will be no play between the stay and the visor due to the bumps of various gears.
This has the effect of ensuring that the visor is locked in place.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of this invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a perspective view of the shaft gear, and Fig. 4 is a perspective view of the upper moderation plate. FIG. 5 is a perspective view of the lower moderation plate. 1... Stay, 1b... Rotating shaft, 2... Visor, 2a... Shaft hole, 3... Mirror, 4... Vehicle body,
7... Mirror holder, 10... Upper moderation plate, 10a... Moderation engaging portion, 11... Shaft gear, 11b... Gear, 11c... Upper end surface, 11d
... lower end surface, 11e, 11f ... moderation engagement part, 1
2... Lower moderation plate, 12a... Moderation engaging portion, 12b... Rotation stopper, 13... Moderation spring, 15... Rotation stopper, 20... Visor cover, 21... Motor, 22... motor gear, 2
3...Idle gear, 24...Gear.

Claims (1)

[Claim for Utility Model Registration] A visor rotation shaft is provided protruding from a stay attached to the outer surface of the door, and a rotation hole of a visor that supports a mirror in a tiltable manner is fitted into the rotation shaft, and the visor is rotated around the rotation shaft. In a folding door mirror that is rotatable at least in the rearward direction, a shaft gear is rotatably fitted to the rotation shaft, and a plurality of moderation engagement portions are provided on both upper and lower end surfaces of a plane perpendicular to the rotation axis of the shaft gear, respectively. While forming
A moderation plate having a moderation engagement portion that engages with each moderation engagement portion is fitted to the rotating shaft facing both upper and lower sides of the shaft gear, and a moderation spring is compressed between the lower moderation plate and the visor, A rotation stopper is provided protruding from the outer periphery of the side moderation plate, and the rotation stopper engages with a rotation stopper provided on the visor side so as to be non-rotatable and movable in the direction of the rotation axis, while rotating the upper moderation plate. non-rotatably mounted on the shaft,
A visor electric moderation device for a door mirror, characterized in that the shaft gear is configured to mesh with a reduction gear rotated by a drive motor attached to the visor.