JPS62101558A - Mirror containing device for automobile - Google Patents

Abstract

PURPOSE:To enable to perform reliable positioning of a mirror, by a method wherein driving of a driving motor forces the projection of a slide ring into selective contact with both end surfaces of the notch of a base, and a mirror can be positioned in a regular portion or a containing position. CONSTITUTION:When a mirror is contained, a drive gear 9 is rotated by means of a driver gear 4 through driving of a drive motor 3. Rotation of the drive gear causes rotation of a drive ring 8, and rotation of a slide ring 7, joined with the drive ring 8 by means of a friction force, and rotation of a mirror ring 6 forced into friction contact with the slide ring 7. Rotation of the slide ring 7 causes a projection 7a to rotate within a base 1a, and make contact with an end surface 1b, resulting in the stop of rotation of the slide ring 7. Thereafter, with the slide ring 8 further rotated, the projection 8a is forced into contact with an end surface 6b of a mirror ring 6 or an end surface 7b of a slide ring 7, rotation of the drive ring 8 is stopped, and the mirror is brought into a containing stage.

Description

[Detailed Description of the Invention] The present invention provides an automobile mirror that protrudes laterally from the vehicle body while the vehicle is running, and tilts toward the front or rear of the vehicle body when it comes into contact with a human body or object. , relates to an automobile mirror storage device that is tilted and stored in a storage position on the rear side of the vehicle body in a garage or the like.

2. Description of the Related Art Hitherto, various structures of this type of automobile mirror storage device are known. For example, as shown in FIGS. 14 and 15, a gear 74 is fixed to the lower end of the support stay 73 of the mirror 72 that protrudes to the side of the vehicle body 71, and the drive gear 76 of the drive motor 75 is engaged with the gear 74. Together,
The gear 74 is rotated by the drive of the drive motor 75, and the mirror 72 is rotated between the normal position 77 and the storage position 78 via the support stay 73. The pin 79 connected to the limit switch 81
．． 80, the driving of the drive motor 75 is stopped and the mirror 72 is positioned at the normal position 77 or the storage position 78. On the other hand, when a human body or object contacts the mirror, the mirror 72 is tilted forward from the normal position 77. There is one that can be freely rotated to any position (Utility Model No. 60-85256)
issue).

Problems to be Solved by the Invention However, in the above structure No. 6, the mirror is positioned by the pin of the gear that rotates the mirror coming into contact with one of the limit switches.
Electrical contact failure may occur in the limit switch, which reduces the reliability of the mirror rotation operation.In addition, after the drive motor is stopped, the mirror may not move to the specified stop position due to motor inertia or gear backlash. There is a problem in that the mirror rotates more than the mirror, and the positioning accuracy of the mirror is low. Another problem is that the electric circuit becomes complicated.

Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a mirror for an automobile that has no electrical contacts, has high reliability in the rotating operation of the mirror, and has excellent mirror positioning accuracy. The purpose of the present invention is to provide a storage device.

Means for Solving the Problems In order to achieve the above object, the present invention provides that when the mirror is located in the normal position or the stored position, the mirror rings supporting the mirror are prevented from rotating relative to the base, so that the mirror is configured to be reliably positioned at each of the above positions. That is, a mirror is rotatably supported on a base fixed to the vehicle body, and the mirror is moved between a normal position protruding to the side of the vehicle body and a rearward position of the vehicle body from the normal position by driving a drive motor fixed to the base. The mirror can be rotated between the storage position, which tilts to the side, and the mirror can be manually rotated from the normal position to the forward tilting position, which tilts toward the front of the vehicle. A support shaft is provided protrudingly on the upper surface of the base, and a notch having a predetermined angle range is provided on the upper surface of the base or the support shaft, and a drive gear connected to the drive motor is supported on the upper end of the support shaft of the base. A drive ring is rotatably arranged on the support shaft below the drive gear, and a mirror ring supporting a mirror and a slide ring are arranged between the drive ring and the base so as to be able to move up and down. Alternatively, the mirror ring is rotatably arranged on the support shaft above and below, the mirror ring is provided with a notch having a predetermined angular range, and the slide ring is provided with a protrusion that is inserted into the notch of the base and the notch of the mirror ring, The drive ring has a protrusion inserted into the notch of the mirror ring, and the lower surface of the drive gear and the upper surface of the drive ring are provided with uneven surfaces having a large coefficient of friction, while the base and the mirror ring or slide ring are Each opposing surface, each opposing surface between the mirror ring and the slide ring, and each opposing surface between the slide ring or the mirror ring and the drive ring is provided with a friction surface having a predetermined friction coefficient that is smaller than the uneven surface. The protrusions of the slide ring abut each end face of the notch of the base, and one end face of the notch of the mirror ring abuts the protrusions, thereby positioning the mirror at either the normal position or the stored position. At the same time, the rotation of the drive ring is stopped by the protrusion of the drive ring coming into contact with one end surface of the notch of the mirror ring or the protrusion of the slide ring, while at the same time, the protrusion of the drive ring is brought into contact with the mirror at the normal position on the front side of the vehicle body. When the above external force is applied, the mirror ring is rotated and the mirror is rotated to the forward tilted position.

Effect of the Invention In the above configuration, when the drive motor rotates the miller from the normal position to the storage position, for example, when the drive gear is rotated about the support shaft with respect to the base, the joint is joined by frictional force. The drive ring rotates together with the drive gear, and the mirror ring joined by frictional force to the drive ring also rotates together with the drive ring, so that the protrusion of the slide ring rotates within the notch of the base and contacts the other end surface of the notch. The rotation of the slide ring is stopped by the contact, and then the protrusion of the drive ring contacts the other end surface of the cutout of the mirror ring, and one end surface of the cutout of the mirror ring contacts the protrusion of the slide ring, and the rotation of the mirror ring and drive ring is stopped. is stopped and the mirror is positioned in the retracted position. On the other hand, when rotating the mirror from the storage position to the normal position, the drive gear, drive ring, and mirror ring are rotated by the drive motor in the opposite direction to the base due to frictional force. The protrusion of the slide ring contacts one end surface of the cutout of the mirror ring, rotating the mirror ring,
The protrusion of the slide ring comes into contact with one end face of the notch in the base to stop the rotation of the mirror ring, and the protrusion of the drive ring comes into contact with the protrusion of the slide ring to stop the rotation of the drive ring and position the mirror at its normal position. . In addition, when a human body or an object comes into contact with the mirror, the mirror ring rotates to the side where the other end of the notch in the mirror ring comes into contact with the protrusion of the slide ring or the protrusion of the drive ring.
The mirror is manually rotated to the forward tilted position.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail based on the drawings shown in FIGS. 1 to 13.

As shown in FIG. 1, the automobile mirror storage device according to this embodiment has a center shaft 5 as a support shaft fixed to a base l fixed to a door of a vehicle body 27 so as to protrude laterally. At the same time, a mirror I! is attached to the center shaft 5. The mirror ring 6 that supports the slide ring 7, the drive ring 8, and the drive gear 9 that meshes with the drive gear 4 of the drive motor 3 fixed to the base I via the stay 2 are placed in order from below to above. Coil spring I
The drive ring 8 is connected to the drive ring 8 via the drive gear 9 by O.
, the slide ring 7 and the mirror ring 6 are pressed against the base side to join them, and the mirror ring 6 is attached to the base l.
By rotating the slide ring 7 within a predetermined range, the mirror 11 is rotated between a normal position A, a forward tilted position C, and a retracted position B.

The base I is made of a substantially circular plate fixed to the vehicle body 27, and has the center shaft 5 projecting from the center of its upper surface, and a fan-shaped notch 1a recessed downward at a predetermined location on the outer periphery of the upper surface. Be prepared.

Further, as shown in FIG. 2, the mirror ring 6 is arranged on the base l so as to be rotatable around the center shaft 5. This mirror ring 6 is a cutout 1a of the base 1.
A fan-shaped cutout 6a having an angular range larger than the angular range of
At the same time, a friction surface is formed on the upper surface 1d of the base I and the lower surface 6d of the mirror ring 6, respectively, so that a certain frictional force acts between both surfaces, and the frictional force increases and joins the two members to form a substantially integral body. Make it rotate. One end of a mirror 11 is fixed to one end of the mirror ring 6, and the mirror 11 and the mirror ring 6 are rotated together around the axis of the center shaft 5.

Further, the slide ring 7 is arranged on the mirror ring 6 so as to be rotatable around the center shaft 5. This slide ring 7 is a cutout 6a of the mirror ring 6.
The notch 7a has an angular range that is approximately the same as the angular range of the cutout 7a. One end surface 7C of this notch 7a is integrally provided with a projection 7d extending downward along the end surface 7C and at the outer peripheral edge of the lower surface of the slide ring 7, and the projection 7d is connected to the notch 1a of the base l and the mirror ring 6. The protrusion 7d enters into the notch 6a and rotates within the notches 1a and 6a, and the protrusion 7d is attached to the base! Either end face lb of the notch 1a
, lc to stop the rotation of the slide gear 7. Friction surfaces are formed on the upper surface 6e of the mirror ring 6 and the lower surface 7e of the slide ring 7, respectively, so that a constant frictional force acts between the two surfaces, and both rings 6.7 are joined by the frictional force and rotate substantially integrally. Do it like this.

Further, the drive ring 8 is disposed on the slide ring 7 so as to be rotatable around the center shaft 5, and a protrusion 8a extending downward is integrally fixed to the outer peripheral edge of the lower surface of the drive gear 8. The protrusion 8a enters into the notch 6a of the mirror ring 6 and the notch 7a of the slide ring 7, rotates within both the notches 6a, 7a, and comes into contact with one end surface of the protrusion 7d of the slide ring 7. Make it.

A friction surface is formed between the lower surface 8b of the drive ring 8 and the upper surface 7 of the slide ring 7 so that a constant frictional force acts between the two surfaces, and the frictional force joins both rings 8.7 to form a substantially integral body. Make it rotate.

Further, the drive gear 9 is arranged on the drive ring 8 and rotatably around the center shaft 5. This drive gear 9 has a gear 9a on its outer peripheral surface, and the gear 9a meshes with the drive gear 4 of the drive motor fixed to the base l via the stay 2, and is driven by the rotation of the drive gear 4. The gear 9 is driven to rotate. A friction force is exerted between the lower surface 9b of the drive gear 9 and the upper surface 8C of the drive ring 8, which is larger than the friction force between the mirror ring 6 of the base 11, the slide ring 7, and the drive ring 8, respectively. A coil spring 10 is compressed between the head of the upper center shaft 5 and the drive gear 9 to urge the drive gear 9 toward the base 1. Therefore, since frictional force acts between each member and the opposing members are joined, the drive ring 8 rotates due to the rotation of the drive gear 9, the slide ring 7 rotates due to the rotation of the drive ring 8, and the slide The rotation of the ring 7 causes the mirror ring 6 to rotate.

In the vehicle mirror storage device having the above configuration, as shown in FIG. 3, the mirror 11 has a normal position A where it projects laterally from the vehicle body 27, and a forward tilted position C where it is tilted due to gravity from the normal position. , and rotates around the axis of the center shaft 5 between the normal position A and a rearwardly inclined storage position B.

In the normal position A, as shown in FIG. 7 protrusion 7d
It is in contact with one end surface of. When rotating the mirror 11 from this normal position A to the storage position B and storing the mirror 11, the drive motor 3 is driven.
Drive gear 9 is driven by drive gear 4 in the direction of arrow a in FIG.
Rotate. As the drive gear 9 rotates, the drive ring 8, which is joined to the drive gear 9 by a large frictional force, rotates substantially integrally with the drive gear 9, and the slide ring 7, which is joined to the drive ring 8 by a frictional force, and the slide The mirror rings 6 joined to the ring 7 by frictional force rotate, respectively. Due to this rotation of the mirror ring 6, the mirror 11 begins to rotate around the axis of the center shaft 5. When the slide ring 7 rotates, its protrusion 7d rotates within the notch 1a of the base I. And this protrusion 7
d is the other end surface of the notch 1a of the base l! b to stop the rotation of the slide ring 7.

Thereafter, as the drive ring 8 is still rotated, the protrusion 8a of the drive ring 8 rotates within the notch 7a of the slide ring 7 and the notch 6a of the mirror ring 6, and the end surface of the protrusion 8a is rotated within the notch 6a of the mirror ring 6. Other end surface 6b
Alternatively, when it comes into contact with the other end surface 7b of the notch 7a of the slide ring 7, the rotation of the drive ring 8 is stopped, and the mirror 11 is placed in the storage position B, which is the mirror storage state shown in FIG. The drive ring 8 is connected to the drive gear 9.
When the drive gear 9 and the drive ring 8 are still rotated, slippage occurs between the drive gear 9 and the drive ring 8. The occurrence of slippage between the drive gear 9 and the drive ring 8 is detected by a slippage detection means, and the driving of the drive motor 3 is stopped. This slippage detection means can be applied to the one generally used for detecting the end of a tape in a tape recorder.
Using magnets and magnetoresistive elements, drive ring 8
The slippage of the drive ring 8 is detected by detecting a decrease in the rotational speed of the drive ring 8.

On the other hand, when rotating the mirror 11 from the storage position B to the normal position A, the drive motor 3 is driven in the opposite direction to the above, and the drive gear 9 is connected to the drive ring 8 in FIG. The slide ring 7, which is joined to the ring 8 by frictional force, is rotated by the drive ring 8, and the mirror ring 6, which is joined to the ring 7 by frictional force, is rotated by the drive ring 8. While rotating, the protrusion 7d of the slide ring 7 is in contact with the one end surface 6C of the notch 6a of the mirror ring 6, and the base l is rotated.
Rotates within the notch 1a. One end surface of the projection 7d of the slide ring 7 is one end surface 1 of the notch 1a of the base l.
When the rotation of the slide ring 7 is stopped by contacting the slide ring 7, the rotational driving force of the drive ring 8 is not transmitted to the mirror ring 6, and the mirror ring 6 also stops rotating. However, the drive ring 8 has an upper surface 7f of the slide ring 7.
Continue rotating while sliding on the protrusion 8a of the drive ring 8.
When one end surface rotates within the notch 7a of the slide ring 7 and the notch 6a of the mirror ring 6, and one end surface of the protrusion 8a abuts the other end surface of the protrusion 7d of the slide ring 7, the rotation of the drive ring 8 is stopped. It is stopped, and the mirror 11 comes to be located at the normal position A as shown in FIG. When the drive ring 8 is still rotationally driven by the drive gear 9, slippage occurs between the drive gear 9 and the drive ring 8. The occurrence of slippage between the drive gear 9 and the drive ring 8 is detected by the slippage detection means, and the driving of the drive motor 3 is stopped.

On the other hand, when the mirror 11 is in the normal position, when the mirror 11 is tilted toward the forward tilted position C due to a human body or an object coming into contact with the mirror 11, only the mirror ring 6 and the mirror 2 are moved to the slide ring 7. and the base] from the normal position A shown in FIG. 4 to the forward tilted position C shown in FIG. 6 as shown by arrow C in FIG. When rotating the mirror 11 from the forward tilted position C or a position close thereto to the retracted position B, the drive motor 3 is driven to move the drive gear 9 together with the drive ring 8 as shown by arrow d in FIG. The drive ring 8 rotates the slide ring 7 which is joined to the drive ring 8 by frictional force, and the slide ring 7
rotates the mirror ring 6 joined to the slide ring 7 by frictional force. The projection 7d of the slide ring 7 rotates within the notch 1a of the base I, and the other end surface of the projection 7d abuts the other end surface tb of the notch 1a of the base I, thereby stopping the rotation of the slide ring 7. The drive ring 8 further rotates due to the rotation of the drive gear 9, and the other end surface of the protrusion 8a of the drive ring 8 becomes the notch 6 of the mirror ring 6.
a, and rotates the mirror ring 6 in the direction opposite to the direction of arrow C in the figure, so that the other end surface of the protrusion 8a of the drive ring 8 is brought into contact with the other end surface 7 of the notch 7a of the slide ring 7.
When it comes into contact with b, the rotation of the drive ring 8 is stopped, and the mirror ``11'' comes to be located at the storage position B as shown in FIG.

When rotating the mirror 11 to each position, the order in which the members start rotating may differ depending on the magnitude of the frictional force between the drive ring 8, slide ring 7, mirror ring 6, and base 1. That is, for example, when rotating the mirror 11 from the normal position A to the storage position B, the slide ring 7 first rotates together with the drive ring 8, and the protrusion 7d of the slide ring 7 aligns with the notch 1 of the base l.
After contacting the other end surface tb of the drive ring 8, the protrusion 8a of the drive ring 8 contacts the other end surface 6b of the notch 6a of the mirror ring 6 to avoid rotating the mirror ring 6, and the notch 6 of the mirror ring 6
This also applies when the rotation of the drive ring 8 is stopped due to one end surface 6C of the slide ring 7 coming into contact with the end surface of the protrusion 7d. Furthermore, since each member is joined only by frictional force, the mirror can be manually rotated within the rotation range from the forward tilted position C to the retracted position B.

According to the above embodiment, the protrusion 7d of the slide ring 7 can be positioned at the base l without using electric detection such as a limit switch to position the mirror 11 at the normal position A and the stored position B.
is in contact with the end surface 1b or Ic of the notch 1a, and any end surface 6b of the notch 6a of the mirror ring 6 is in contact with the protrusion 7D.
, 6c come into contact with each other and stop the rotation, thereby making it possible to mechanically reliably position the mirror II, thereby improving the positioning accuracy of the mirror II. In addition, the structure is simple and inexpensive, and since there are no electrical contacts, problems such as poor electrical contact do not occur at all. The drive stop device for the drive motor 3 may be a detection device that detects the occurrence of slippage between the drive gear 9 and the drive ring 8, and this detection device may be, for example, a rotation speed detection device for the drive gear 9. This is sufficient, and the drive stop device for the drive motor 3 becomes simple.

Note that the present invention is not limited to the above embodiments,
It can be implemented in various other ways. For example, grooves may be formed on opposing surfaces of each member to release chips generated by friction.

Furthermore, a well-known moderation mechanism may be provided at the normal position A1 of the mirror 11, at the storage position B, and at other positions if necessary, so that the mirror I2 can be more reliably positioned and held at each position.

In order to increase the friction between the drive ring 8 and the drive gear 9, it is also possible to form uneven surfaces such as waves or trapezoids on the opposing parts 8c and 9b, or to create large friction such as asbestos plates. A plate material may be provided.

Further, in order to increase the friction between the drive ring 8 and the drive gear 9, the following configuration may be adopted. That is, as shown in FIG. 7, an auxiliary coil spring 12 having a spring force smaller than the spring force of the coil spring 10 is compressed at the lower part of the center shaft 10 and between the base 1 and the drive ring 8. , Drive ring 8 and drive gear 9 are connected by both coil springs 10°12.
are sandwiched between the members 8 and 9 to increase the friction between the two members 8 and 9, while decreasing the friction between the drive ring 8 and the slide ring 7, the slide ring 7 and the mirror ring 6, and the mirror ring 6 and the base 1. It's okay. In addition,
In FIG. 7, since it is preferable that the friction between the coil spring IO and the drive gear 9 and between the auxiliary coil spring 12 and the drive ring 8 be small, a ball bearing or a Teflon sort may be provided. In addition, in the figure, 13 is a guide pipe, and 14 is an auxiliary gear.

In addition, between other members other than between the drive ring 8 and the drive gear 9, in order to reduce friction, a plate material with a low coefficient of friction such as a Teflon sheet is inserted, or a ball bearing or the like is used. Good too.

Furthermore, by appropriately adjusting the friction between each member, the rotation start order of the members can be changed depending on the purpose. for example,
If the friction between the drive ring 8 and the slide ring 7 is made smaller than the friction between other members, the drive ring 8
When the mirror ring 6 starts to rotate, the mirror ring 6 can be caused to rotate after the drive ring 8 idles.

Furthermore, if the friction between the mirror ring 6 and the base l is made smaller than the friction between other members, the mirror 11 can start rotating at the same time as the drive motor 3 is driven. That is, as shown in FIG. 8, in FIG.
When the coil spring 15 is compressed, the friction between the drive gear 9 and the drive gear 8 is the largest, and the friction between the drive ring 8 and the slide ring 7 or between the slide ring 7 and the mirror ring 6 is the second largest. The friction between the mirror ring 6 and the base l may be minimized.

- Furthermore, as shown in FIG. 9, the slide ring 7 and the mirror ring 6 may be arranged in opposite directions in the vertical direction. That is, a slide ring 17 is disposed on the base l so as to be freely rotatable around the center shaft 5, and a mirror ring 16 is disposed on the slide ring 17 so as to be freely rotatable around the center shaft 5. The slide ring above! 7 is provided with a pair of protrusions 17a and 17b extending vertically at predetermined locations, and the upper protrusion 17a is inserted into the notch 1a of the base l and freely rotates within the notch 1a, while the upper protrusion 17a The protrusion 17b is inserted into the notch 6a of the mirror ring 16 and freely rotates within the notch 6a. In addition, a projection 8c protruding downward from the lower surface of the drive ring 8 above the mirror ring is inserted into the notch 6a of the mirror ring 16, and is inserted between the other end surface 6b of the notch 6a and the upper projection of the slide ring 17. It rotates freely between it and one end surface of 17b. According to the above configuration, from the normal position A of the mirror If shown in FIG. 9, the drive gear 9 is moved in the direction of arrow e in the figure by the drive of the drive motor 3.
The drive ring 8, mirror ring 16, and slide ring 17 are rotated integrally using friction, and the upper protrusion 17a of the slide ring 17 comes into contact with the other end surface 1b of the notch 1a of the base l, and the slide ring 17 is stopped, and the protrusion 8C of the drive ring 8 is
is mirroring! 6, one end surface 6C of the notch 6a of the mirror ring 16 comes into contact with the upper protrusion 17b of the slide ring I7, and the drive ring 8
stop the rotation. Then, slippage is caused between the drive ring 8 and the drive gear 9, the drive of the drive motor 3 is stopped, and the mirror 2 is positioned at the storage position B. Conversely, when rotating the mirror 11 from the storage position B to the leg position A, the drive motor 3 is driven in the opposite direction to the above, and the drive gear 9 is rotated in the direction of the arrow e in the figure. Ring 8, mirror ring 16 and slide ring I
7, and the upper protrusion 17a of the slide ring 17 is the base! The rotation of the slide ring 17 is stopped by contacting one end surface 1c of the notch 1a, and the projection 8C of the drive ring 8 is brought into contact with the upper projection 17b of the slide ring 17 to stop the rotation of the drive ring 8. 8 and drive gear 9 to cause slippage. This mirror I! In the state of normal position A, mirroring I
The upper projection 17b of the slide ring 17 is in contact with one end surface 6C of the notch 6a of the mirror ring 16, and when the mirror 11 is rotated to the forward tilted position C, the other end surface 6 of the notch 6a of the mirror ring 16
In the embodiment shown in FIG. 9, in which the mirror ring 16 is rotated until the upper protrusion I7b of the slide ring 17 comes into contact with the upper protrusion I7b of the slide ring 17, the friction between each member is adjusted, for example, as follows. That is, as shown in FIG. 1O, a slide ring 17, a mirror ring 16, a drive ring 8, and a drive gear 9 are placed on the base 1 in order from bottom to top.
is rotatably supported on the center shaft 5 and compressed between the center shaft 5 and the drive gear 9. By compressing the auxiliary coil spring 12, it is possible to increase the friction between the drive gear 9 and the drive ring 8, while decreasing the friction between other members. In addition, in the figure, 18°・
..., 18 is a ball bearing, 19 is the ball bearing 18. . . . is a guide plate interposed between the coil spring 18 and the coil spring 10.

In addition, as shown in FIG. 11, a second auxiliary coil spring 15 is further compressed between the mirror ring 16 and the base l in FIG. The friction between the drive ring 8 and the mirror ring 16 or between the mirror ring I6 and the slide ring 17 may be the largest, and the friction between the slide ring 17 and the base l may be the smallest.

Further, as shown in FIG. 12, instead of providing the base l with the downwardly recessed notch 1a, the center shaft 2 has a shape in which the horizontal section is cut out with a semicircular notch 20b.
When 0 is provided protrudingly, the shape of the slide ring is approximately the shape of a ring 21 that is fitted into the center shaft 20 and has a protrusion 21a on the inner circumferential surface.
The projection 21a may rotate within a range of about 90 degrees until it comes into contact with one of the cutout surfaces 20a and 2Qa of the center shaft 20.

Ring 2 having the shape shown in FIG. 12 above! If the slide ring is configured as shown in FIG. 13.16, it can also be configured as shown in FIG. That is, the drive gear 9 and the drive gear 8 are rotatably supported on the columnar part 20b at the upper part of the center shaft 20, and the lower part 21 of the center shaft 20 is rotatably supported.
A slide ring I7 is rotatably supported within a predetermined range at the upper part of the slide ring I7 having the cross-sectional shape shown in FIG. Then, the support plate 22 is fixed to the upper end of the center shaft with bolts 23, the coil spring 24 is compressed between the base l and the slide ring 17, and the drive gear 9, drive ring 8, In addition to pressing the mirror ring I6 and slide ring 17, an auxiliary coil spring 25 is compressed between the lower upper end of the center shaft and the drive ring 8 to maximize the friction between the drive gear 9 and the drive ring 8. do. Further, in this embodiment, the auxiliary coil spring 25 may be omitted, and the uneven friction between the drive ring 8 and the drive gear 9 may be formed.

Effect of the Invention 1 According to the above structure, the protrusion of the slide ring selectively contacts both end surfaces of the notch of the base by driving the drive motor, thereby positioning the mirror at the normal position or the storage position. Therefore, the mirror can be reliably positioned mechanically without relying on electrical detection, the mirror positioning accuracy is improved, and the structure is simple and inexpensive. In other words, in the conventional system, the mirror was positioned by stopping the drive motor when the pin came into contact with the limit switch, but with this system, the drive motor was stopped only after the limit switch closed the electrical contacts. When the motor stops, the mirror may rotate excessively from a predetermined stopping position due to motor inertia or gear backlash, resulting in poor mirror positioning accuracy.

Further, since there are no electrical contacts, problems such as poor contact of electrical contacts do not occur at all, and the reliability of the rotational operation of the mirror is improved, and a complicated electrical circuit is not required. Also,
For example, a detection device that detects the occurrence of slippage between the drive gear and the drive ring (such as a drive gear rotation speed detection device) is sufficient to stop the drive motor, and a drive stop device for the drive motor is sufficient. It can be made simple.

[Brief explanation of drawings]

Fig. 1.2 is a perspective view and an enlarged view of essential parts of an automobile mirror storage device according to an embodiment of the present invention, Fig. 3 is an explanatory view showing the operating range of the mirror, and Fig. 4.5.6. 7.8, 10, 11, 13. are enlarged views of the main parts of the mirror storage device in the normal position, storage position, and forward tilted position of the mirror, respectively.
Fig. 16 is a vertical sectional view of a mirror storage device according to another embodiment, Fig. 9 is an enlarged view of the main part of a mirror storage device according to another embodiment, and Fig. 12 is another embodiment of the center shaft and ring. FIGS. 14 and 15 are explanatory diagrams showing an example of the operation of a conventional mirror storage device, and an explanatory diagram showing a state in which it is attached to a vehicle body, respectively. l...base, la...notch, 2...stay, 3
... Drive motor, 4... Drive gear, 5.20...
Center shaft, 6.16...Mirroring, 6a.
...Notch, 7°17...Slide ring, 7a...
Notch, 7d...Protrusion, 8...Drive ring, 8a
...Protrusion, 9...Drive gear, 10.24...
Coil spring, 11...Mirror, 12, 15.2
5... Auxiliary coil spring, 21... Ring. Patent applicant Tokai Rika Denki Seisakusho Co., Ltd. Agent Patent attorney Aoyama Aoyama and 2 others No. 2■ No. +5 vA Figure 16

Claims (4)

[Claims] (1) A mirror (11) is rotatably supported on a base (1) fixed to a vehicle body (27), and the mirror (11) is
Between the normal position (A) that projects to the side of the vehicle body by the drive of the drive motor (3) fixed to the base (1) and the retracted position (B) that leans toward the rear of the vehicle body from the normal position (A). The above-mentioned base (1) is an automobile mirror storage device that allows the mirror (11) to be manually rotated from the normal position (A) to the forward tilted position (C) where the mirror (11) is tilted toward the front of the vehicle body.
Support shafts (5, 20) are provided protruding from the upper surface of the base (1), and cutouts (1a, 20b) having a predetermined angle range are provided on the upper surface of the base (1) or the support shafts (5, 20).
The drive motor (3) is attached to the upper end of the support shaft (5, 20) of
) is connected to the support shaft (5,
A drive ring (8) is rotatably arranged on the support shaft (5, 20) below the drive gear (9), and the drive ring (8) is rotatably arranged on the support shaft (5, 20).
and the base (1), a mirror ring (6) supporting the mirror (11) and a slide ring (7) are arranged vertically or downwardly on the support shaft (5) so as to be freely rotatable; The mirror ring (6) has a notch (6a) having a predetermined angle range, and the slide ring (7) has a cutout (6a) having a predetermined angle range, and the slide ring (7)
1) Inside the notches (1a, 20b) and mirroring (6)
The drive ring (8) includes a protrusion (7d) inserted into the notch (6a) of the mirror ring (6), and the drive ring (8) includes a protrusion (8a) inserted into the notch (6a) of the mirror ring (6). The lower surface of the drive gear (9) and the upper surface of the drive ring (8) are provided with uneven surfaces with a large coefficient of friction, while the opposing surfaces of the base (1) and the mirror ring (6) or the slide ring (7), The opposing surfaces of the mirror ring (6) and the slide ring (7) and the opposing surfaces of the slide ring (7) or the mirror ring (6) and the drive ring (8) each have a coefficient of friction smaller than the uneven surface. The protrusion (7d) of the slide ring (7) is provided with a friction surface having a predetermined coefficient of friction, and each end face (1b, 1c, 1c,
The mirror (11
) in either the normal position (A) or the storage position (B), and the protrusion (8a) of the drive ring (8) is aligned with one end surface (6b) of the notch (6a) of the mirror ring (6). or the protrusion (7d) of the slide ring (7) to stop the rotation of the drive ring (8), while at the normal position (A), the mirror (11) is pushed toward the front of the vehicle by more than a predetermined amount. A mirror storage device for an automobile, characterized in that a mirror ring (6) rotates when an external force is applied to rotate the mirror (11) to a forward tilted position. (2) Place the mirror ring (6) on the base (1), place the slide ring (7) on the mirror ring (6), and place the mirror ring (6) and the base (
1) from the friction coefficient of the friction surface between the mirror ring (6) and the slide ring (7) and the friction coefficient of the friction surface between the slide ring (7) and the drive ring (8). The automobile mirror storage device according to claim 1, wherein the mirror storage device is made smaller. (3) The above drive ring (8) and slide ring (7)
) is larger than the friction coefficient of the friction surface between the slide ring (7) and the mirror ring (6) and the friction coefficient of the friction surface between the mirror ring (6) and the base (1). An automobile mirror storage device according to claim 2, wherein the mirror storage device for an automobile is configured as follows. (4) Above slide ring (7) on above base (1)
2. The automobile mirror storage device according to claim 1, further comprising a mirror ring (6) arranged on the slide ring (7).