JP2003054318A - Electric-driven storage mirror having storing motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a space X for reliably performing the locking when a motor 8 to oscillate a mirror body in a storing position and a working position is assembled in one operation by the locking of a locking claw 5a in a locking hole 10d so that the space X is absorbed so as to prevent any play when the motor 8 is subjected to a load in the thrust direction. SOLUTION: An elastically pressing piece 9a is protruded from a motor bracket 9 assembled with the motor 8, and the elastically pressing piece 9a with the motor 8 assembled therewith elastically presses a motor cover 10 to the direction opposite to the assembling direction to absorb the space X.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of an electric retractable mirror having a retractable motor mounted on a door of an automobile or the like.

[0002]

2. Description of the Related Art Today, a mirror body is swingably supported in a storage posture and a use posture on a body side such as an automobile door, and the swing of the mirror body is assembled to a bracket which is a component of the mirror body. It is often used to mount an electric storage mirror which is designed to be driven by an attached storage motor. In such a storage motor, the storage motor is conventionally used as shown in FIG. The worm gear 3 provided on the motor shaft 30a is obtained by assembling the motor base 31 in which the motor 30 is incorporated into the bracket 33 via the screw 32, and the storage motor 30 is driven in the forward and reverse directions.
4 rotates the pinion gear (not shown) forward and backward to move the electric storage mirror to the storage position and the use position.

[0003]

However, in the above-mentioned prior art, since the motor base 31 is of the screw fixing type, not only the number of parts increases, but also the assembling work becomes troublesome and complicated. There is. Therefore, the motor cover incorporated in the storage motor is pushed in the motor axial direction with respect to the bracket so that the locking claw and the locking hole are forcibly fitted to each other, thereby eliminating the screw fixing. It is suggested that the structure be such that it can be attached. However, in adopting such a force-fitting structure, it is necessary to ensure that the locking claws are locked in the locking holes, and therefore, when the motor base is pushed to the maximum, the locking claws are locked together. A slight gap is provided between the toe edge and the hole edge of the locking hole so that when the motor cover is pushed into the bracket, the locking edge will be beyond the hole edge. It is generally dimensioned. By the way, when the storage motor is driven, the storage motor receives a reaction force from the pinion gear to move forward and backward in the motor shaft direction when the motor rotates in the normal or reverse direction. In the case of the structure that is forcedly fitted in, it is necessary to set the dimensions so that the above-mentioned locking end edge has a gap beyond the hole edge, and as a result, the amount of the excess gap becomes loose, When the storage motor is driven, the storage motor moves together with the motor cover, which causes problems such as generation of abnormal noise and impaired smooth storage operation. is there.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in order to solve these problems, and a mirror body is stored in a stay on a vehicle body side stay. An electric retractable mirror, which is swingably supported in a use posture, and in which the swing of the mirror main body is performed by driving a storage motor assembled to a bracket which is a component of the mirror main body. When the motor is assembled to the bracket side by pushing the motor into the bracket side and locking and locking the motor in a force-fitting manner, the assembled motor is referred to as the pushing direction of the motor. It is an electric retractable mirror equipped with a retracting motor, characterized in that means for suppressing pressure is provided on the opposite side. By doing so, it is possible to absorb the play on the motor side while allowing the motor to be incorporated by one-touch by the retaining fit-like locking. In this motor, it is assumed that the motor is provided with a motor base located on the motor shaft protruding side and a motor cover located outside the motor base. The present invention can be characterized in that the locking claws formed on the cover and the bracket and the locking holes are engaged with each other by retaining engagement. Also, in this one, the means for elastically pressing the assembled motor to the side opposite to the pushing direction is
It can be characterized in that it is an elastic member provided on the motor base. In these devices, the elastic pressure member can be elastically pressed by contacting the motor cover. Furthermore, in these devices, the elastic pressure member can be configured to elastically contact the motor cover from a stage before the motor is pushed in the most. Furthermore, in these, the retaining engagement between the locking claw and the locking hole is performed between the push-in side hole end of the locking hole and the push-in side claw end of the locking claw when the motor side is pushed the most. A gap is formed, and the elastic pressure member is characterized by elastically compressing at least a stroke at which the pushing-side hole end of the locking hole and the pushing-side claw end of the locking claw come into contact with each other. it can.
Still further, in these, the motor cover may have a bottomed cylindrical shape, and the motor bottom end supports the motor end.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a body constituting a mirror main body of an electric storage mirror, and a unit case 3 in which a mirror plate 2 is freely adjustable in angle, and an electric storage mechanism for storing the body 1. 4 and a unit case 3 which is provided with an angle adjusting mechanism (not shown) for adjusting the angle of the mirror plate 2, and the bracket 5 which houses the electric storage mechanism 4 as described later is mounted on the vehicle. Stay 6 provided on the door side of
It is the same as that of the related art such that it is integrally assembled with the screw 7 through the screw 7.

In the electric storage mechanism 4 described above, the storage motor 8, the motor base 9 fitted to the motor 8 from the protruding side of the motor shaft 8a, and the motor shaft 8a of the motor 8 are installed. A motor cover 10 that is fitted from the side opposite to the protruding side, and is internally fitted to the bracket 5,
A power transmission mechanism (not shown) that meshes with a worm gear 11 fixed to the motor shaft 8a to transmit power, and receives the power from the power transmission mechanism to store the body 1 in the stay 6 and the use posture. The structure for mounting the motor 8 will be described below.

A cylindrical portion 9a is formed on the motor base 9 so as to be fitted onto the outer peripheral surface of the motor 8 in a sliding contact state. The motor cover 10 has a bottomed tubular shape, and the tubular portion 1
0a indicates that the cylinder bottom 10b is the end bracket 8 of the motor 8.
The motor base tubular portion 9a is externally fitted in a loosely fitted state in a state of being supported by abutting against b.
a is attached to the bracket 5 by force fitting,
Therefore, at the opening end of the motor cover tubular portion 10a, the leg piece 10c is formed so as to project toward the motor shaft 8a in a state of being biased toward the outer diameter side from a position located on the inner side of the barrel with respect to the opening end edge 10f. A locking hole 10d is formed in the leg piece 10c. On the other hand, the bracket 5 is formed with a locking claw 5a protruding from the locking hole 10d so that the locking hole 10d is forcibly fitted and locked. The motor 8 is attached to the bracket 5 with the motor base 9 and the motor cover 10 assembled.
As it is pushed into the tubular portion 5b formed in Fig. 5, the leg piece 10c elastically deforms so as to ride on the locking claw 5a as shown in (A) of Figs. ), When the locking hole 10d crosses the locking claw 5a, the leg piece 10c returns to its original posture, whereby the locking claw 5a is locked.
The motor cover 10 is attached to the bracket 5 so that the motor 8 can be assembled by forcefully fitting and locking the motor cover 10 to the d. In this case, as shown in (C) of FIGS. 5 and 6, when the motor cover 10 is pushed to the innermost portion, the locking hole 1
The pushing-side hole end 10e of 0d is set so as to be spaced apart from the pushing-side claw end 5b of the locking claw 5a by a gap X, thereby preventing the locking claw 5a and the locking hole 10d from coming off. Care is taken to ensure that the locking is performed.

On the other hand, the motor base 9 is provided with means for absorbing the gap X in a resilient pressure after the motor 8 is assembled. That is, the elastic pressure piece 9b is elastically formed on the outer periphery of the cylindrical portion of the motor base 9 so as to face the opening edge 10f of the motor cover 10. In this case, in the process shown in FIGS. 5 and 6 (A) to (B), that is, from the state in which the leg piece 10c rides on the locking claw 5a, the engaging side hole end 10e of the locking hole 10d engages. Claw 5a
The elastic pressure piece 9b abuts the motor cover opening edge 10f in the process of being pushed to a position where the pushing side claw end 5b of the motor cover substantially coincides, and the motor cover 10 is elastically deformed by pushing from this position. . During this time, the retaining claws 5a and the retaining holes 10d are retained and retained. When the pushing of the motor cover 10 is released in the state where the retainer retaining is engaged, the motor cover 10 is elastically deformed. Upon receiving the restoring force of the deformed elastic pressure piece 9b, as shown in (D) of FIGS. 5 and 6, it tries to move in the arrow Y direction opposite to the motor shaft projecting direction. The push-in side hole end 10e and the push-in side claw end 5b of the locking claw 5a come into contact with each other so that the gap X is absorbed.

In the embodiment of the present invention constructed as described above, the motor 8 is pushed into the bracket 5 with the motor base 9 and the motor cover 10 assembled, and the engaging hole 10d and the engaging claw are provided. 5a and 5a are engaged with each other to prevent the motor 8 from slipping off, and in this case, the one-touch mounting of the motor 8 can be performed. In this case, when the motor 8 side is pushed most, the pushing-direction side hole end 10e of the locking hole 10d is engaged. The stopper claw 5a is separated from the pushing-direction side claw end 5b with a gap X too far, so that the retaining claw 5a and the retaining hole 10d are prevented from slipping out and there is a processing error or the like. But it will be certain.

As described above, the one-touch installation of the motor 8 can be surely performed, but the motor 8 side is elastically pressed in the assembled state by the elastic pressure piece 9b in the direction opposite to the pushing direction. As a result, the locking claw 5a
The gap X formed between the locking hole 10d and the locking hole 10d is absorbed, and the pressing-side hole end 10e of the locking hole 10d and the pressing-side claw end 5b of the locking claw 5a come into contact with each other to be in an elastic state. Therefore, when the motor 8 is driven, a load is applied to the motor 8 in the direction of the motor shaft 8a (thrust direction). This load is absorbed by the elastic pressure of the elastic pressure piece 9b, and the motor 8 rattles. It is possible to avoid the occurrence of noise, and it is possible to prevent the occurrence of abnormal noise and the problem of power transmission.

Further, in this structure, the elastic pressure piece 9b is formed on the motor base 9 side, and the member for contacting and elastically pressing the elastic pressure piece 9b is the motor cover 10. As a result, the structure can be simplified.

Further, in this device, if the elastic pressure of the elastic pressure piece 9b is set to be larger than the thrust force received by the motor 8, it is possible to avoid the thrust movement on the motor 8 side when the thrust force is received. It becomes more preferable.

The present invention is not limited to the above-described embodiment, and the locking claw may be formed on the motor cover side and the locking hole may be formed on the bracket side. good. Furthermore, the elastic means may be formed of an independent spring material, and when formed on the motor base, the shape is not limited to the cantilever shape as in the above-described embodiment. Of course, a bridge-shaped elastic pressure portion 9c may be used as shown in FIG.

[Brief description of drawings]

FIG. 1 is a front view in which a part of an electric storage mirror is cut away.

FIG. 2 is a sectional view of a bracket portion of the electric storage mirror.

FIG. 3 is a plan view of a bracket portion of the electric storage mirror.

FIG. 4A is a side view of an elastic pressure piece formed on the motor base, and FIG. 4B is a plan view of a portion of the motor base where the elastic pressure piece is formed.

5 (A), (B), (C), and (D) are operation explanatory views showing, in a side view, a process in which the locking hole prevents the locking claw from coming off and locking.

6 (A), (B), (C), and (D) are operation sectional views showing a process in which the locking hole locks the locking claw so as not to come off.

FIG. 7 is a second embodiment of the means for suppressing pressure,
(A) is a side view of a compression piece formed on the motor base,
FIG. 3B is a plan view of a portion of the motor base where the elastic pressure piece is formed.

FIG. 8 is a partially cutaway front view showing a conventional motor mounting structure.

[Explanation of symbols]

5 bracket 5a locking claw 8 motor 9 motor base 9b Repression piece 10 motor cover 10d locking hole

Claims (7)

[Claims] 1. A stay on the vehicle body side supports a mirror body swingably between a storage posture and a use posture, and the swing of the mirror body is assembled to a bracket which is a component of the mirror body. In an electric retractable mirror that is configured to be driven by a storage motor, the assembly of the motor to the bracket side is performed by pushing the motor into the bracket side and forcibly retaining and locking the motor. In doing so, an electric retractable mirror provided with a retracting motor, characterized in that means for elastically pressing the assembled motor in a side opposite to the pushing direction of the motor is provided. 2. The motor according to claim 1, wherein the motor is provided with a motor base located on the motor shaft projecting side and a motor cover located outside the motor base,
Incorporation into the bracket side by pushing the motor is performed by retaining fitting of the locking claws and the locking holes formed on the motor cover and the bracket, and the storage motor is provided. Electric storage mirror. 3. The electric storage device according to claim 2, wherein the means for elastically pressing the assembled motor in a direction opposite to the pushing direction is an elastic pressure member provided on the motor base. mirror. 4. The electric storage mirror according to claim 2 or 3, wherein the elastic pressure member is elastically pressed by contacting the motor cover. 5. The storage motor according to claim 2, 3 or 4, wherein the elastic pressure member is configured to elastically contact the motor cover from a stage before the motor is most pushed in. Electric storage mirror. 6. The retaining fit between the locking claw and the locking hole according to claim 2, 3, 4 or 5, wherein when the motor side is pushed the most, the pushing side hole end of the locking hole is locked. A gap is formed between the push-side claw end of the claw, and the elastic pressure member is elastically compressed at least at the stroke where the push-side claw end of the locking hole and the push-side claw end of the locking claw abut. An electric retractable mirror equipped with a retractable motor. 7. The storage motor according to claim 2, 3, 4, 5 or 6, wherein the motor cover has a bottomed tubular shape, and the motor bottom portion supports the motor end portion. Electric storage mirror.