JPH082328A - Door mirror for automobile - Google Patents

Abstract

PURPOSE:To attain the compactness of mechanism for releasing a motor driving system when sudden external force is applied to a motor-driven housed type door mirror due to the collision of an obstruction from the longitudinal direction. CONSTITUTION:A bracket 25, a clutch 28, a clutch gear 32, a conical recessed body 40, and a pair of conical protruding bodies 36, 37 holding the conical recessed body 40 in between are disposed in this order at a center shaft erectly plated on a mirror base plate 20. The guide part 44 of the conical recessed body 40 is provided with a sliding body 46 pressed by a coil spring 47. At the motor driving time, the clutch 28 and the clutch gear 32 are meshed with each other, and the driving force of a reversible motor 53 is transmitted to the center shaft 21 through the clutch 28 and the clutch gear 32 so as to rotate a door mirror. At the time of external force impact, the door mirror is suddenly rotated against, the resilience of the coil spring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric retractable door mirror mounted on a front door of an automobile, and in particular, in the case of a collision with an obstacle, the door mirror can be folded forward or backward of the vehicle body to provide a shock absorbing function. Regarding the given door mirror.

[0002]

2. Description of the Related Art Conventionally, this kind of electric retractable door mirror is
Since it protrudes to the outside of the vehicle body, there is a risk of collision during traveling. In the event of such a collision, the mirror storage electric system is released in order to mitigate the collision, and only the door mirrors are rapidly moved forward with respect to the mirror base without applying a rotational force due to an external force to the drive motor. And, a structure that allows backward movement is already known. (For example, Actual Kaihei 2-148849)

FIGS. 8 and 9 show a conventional example similar to the structure described in the above publication, 1 is a mirror base plate fixed to a front door of a vehicle body, and 2 is a hollow center fixed to the mirror base plate 1. Shaft, 3
Center shaft 2 on mirror base plate 1
It is a bracket rotatably supported by. Reference numeral 4 is a ball bearing for smoothly rotating the bracket 3 with respect to the mirror base plate 1. A mirror (not shown) and an actuator (not shown) for driving the mirror are attached to the bracket 3. A pair of flat surfaces 5 is formed on the center shaft 2 at a portion located above the bracket 3. Reference numeral 6 denotes a ring-shaped clutch that is axially movably supported on the shaft 2 via a washer 7 on the bracket 3 and has several claw portions 8, 8. This clutch 6 is formed with a flat surface 9 which corresponds to the flat surface 5 of the shaft 2 and therefore the clutch 6 cannot rotate relative to the shaft 2. 1
Reference numeral 0 denotes a clutch gear rotatably supported on the shaft 2, the lower portion of which is hollowed out, and the hollowed-out portion 11 accommodates the clutch 6. Recesses 12, 12 ... In which the claws 8, 8 ... Of the clutch 6 mesh are formed in the ceiling portion of the hollow portion 11. The clutch gear 10 is made to penetrate through the shaft 2 and the washer 14
The coil spring 15 that elastically presses is a fixing ring that fixes the upper end of the coil spring 13 near the upper end of the center shaft 2. Reference numeral 16 is a plurality of reduction gear groups, and 17 is a reversible motor that drives the clutch gear 10 to rotate forward and backward.

In the above structure, the normal clutch gear 10
.. and the recesses 12, 12 ... are engaged with each other by the force of the coil spring 13, and the clutch 6 and the clutch 6 are in a mechanically coupled state. Therefore, the motor 1
When 7 rotates, the driving force is transmitted to the clutch gear 10, which rotates the clutch gear 10 and further acts to rotate the clutch 6. However, since the clutch 6 is supported so as not to rotate with respect to the center shaft 2, the bracket 3 itself rotates with respect to the shaft 2. By rotating the motor 17 forward and backward, the bracket 3 is rotated to the normal position or the retracted position.

When an obstacle collides with the door mirror,
When an external force is suddenly applied from the front or the rear, the meshing portion of the clutch gear 10 and the clutch 6 is disengaged against the spring force of the coil spring 13, and the bracket 3 becomes rotatable with respect to the center shaft 2. It suddenly rotates to the rear or front of the vehicle. This is because the magnitude of the rotational force of the clutch gear 10 due to the impact force exceeds the meshing force between the clutch gear 10 and the clutch 6 due to the coil spring 13.

[0006]

According to the above structure, in the normal condition, the clutch gear 10 and the clutch 6 are engaged with each other, the driving force of the motor 17 is transmitted to the center shaft 2, and the normal operation, that is, the storage of the door mirror is performed. It moves from the position to the normal position and vice versa. When an obstacle collides, the clutch gear 10 and the clutch 6 are disengaged,
The door mirror is turned rapidly. Therefore, the elastic force of the coil spring 13 needs to be set to such a degree that the clutch gear 10 and the clutch 6 are sufficiently meshed with each other during normal operation and the driving force is reliably transmitted. ) 3.0 mm, winding outer diameter 20 mm, number of windings 4 to 5, mounting height
A 15 mm steel coil spring 13 is used. This coil spring 13 penetrates the center shaft 2 and is thus mounted.
Must be lengthened, which is an obstacle to downsizing of the entire door mirror.

The present invention has been made to solve the above problems, and provides a door mirror for an automobile which can be driven normally by using a coil spring which is small and has a weak elastic force. Is. That is,
The present invention focuses on the fact that there is a space of 50 to 60 mm from the center shaft to the side wall of the vehicle body of the door mirror case (a space necessary for retracting and retracting the door mirror).
By making effective use of this space, the height of the center shaft is shortened.

[0008]

An automobile door mirror according to the present invention comprises a mirror base plate which projects outward from a vehicle body of a front door and is fixed substantially horizontally, a center shaft fixed substantially vertically to the mirror base plate, A bracket rotatably supported by the center shaft on a mirror base plate, a clutch gear in which the center shaft is rotatably penetrated in the bracket and is rotatably maintained with respect to the shaft, A clutch meshing with the clutch gear, which is pierced by the center shaft between the clutch gear and the bracket and is supported by the center shaft in a non-rotatable state and movable only in the axial direction of the center shaft. , The center shaft is penetrated A conical recess held by a bracket having an opening with a diameter larger than the outer diameter of the tershaft in the center and having an opening on the side, and a half of the conical recess positioned in the opening. A slide body that is movable in a circular direction and has a wedge shape whose tip substantially matches the conical inclined surface of the conical concave body, a coil spring that elastically biases the slide body and the center shaft, and the cone. The concave body is arranged in the vertical direction,
A convex inclined surface that is supported by the center shaft in a rotatable state and is movable in the axial direction of the center shaft, and that substantially corresponds to the concave inclined surfaces on the upper and lower surfaces of the conical concave body. A pair of conical convex bodies having the convex inclined surface facing the concave inclined surface, a fixing member for preventing the upper conical convex body from moving upward of the center shaft, and fixed to the bracket, It comprises a reversible motor for transmitting the driving force to the clutch gear and a mirror mounted on the bracket.

According to the present invention, in the above structure, a first groove is provided in a circular arc shape on a surface of the mirror base plate facing the bracket, the arc centering around the center shaft, and the mirror of the bracket. An arc-shaped second groove having the same radius as the radius of the first groove, the arc-shaped second groove being provided on the surface facing the base plate on the circumference centered on the center shaft, and the first and second grooves. A ball bearing that is housed in a space formed in the groove, restricts a rotation angle of the bracket with respect to the mirror base plate, and determines a normal position and a storage position at the position of the second groove with respect to the first groove, A protrusion formed on the surface of the mirror base plate facing the bracket, a protrusion formed on the surface of the bracket facing the bracket, and the protrusion is housed and transferred. Possible a groove formed on a circumference around the center shaft, a third groove in which the end portion regulates the door mirror forward-tilted position and a rear tilted position, can be added.

[0010]

1 to 3, reference numeral 20 denotes a plastic, ceramic or metal mirror base plate which is fixed to the front door of an automobile outwardly of the vehicle body and is fixed substantially horizontally. Reference numeral 21 is perpendicular to the center of the mirror base plate 20. With the formed hollow plastic, ceramic or metal center shaft, the mirror base plate 20
Mirror base plate 20 integrally with or by screws or the like
It is fixed to. A pair of flat surfaces 22 are formed on the center shaft 21. 23, 23, and 23 are the center shaft 2 on the upper surface of the mirror base plate 20.
The first groove is an arcuate groove provided with 1 as the center, and is arranged 120 ° apart on the same circumference. First groove 2
The angle of the circular arcs 3, 23 and 23 can be 30 ° and the radius of the circumference passing through the circular arc can be 1.6 cm.

Numeral 25 is a plastic bracket supported by the center shaft 21 on the mirror base plate 20, and the center shaft 21 is pierced by a circular opening 26. The opening 26 is located at the base of the center shaft 21 and is rotatable around the center shaft 21. Reference numeral 27 denotes a second arc-shaped second portion provided at three positions with the center shaft 21 as the center on the lower surface of the bracket 25, that is, the surface contacting the mirror base plate 20.
The groove is formed on the same circumference as the radius of the first groove 23. Similar to these second grooves 23, the angle of the circular arc is 30 °,
The radius of the circumference passing through the arc can be 1.6 cm.

Reference numeral 24 is a ball bearing housed in a hollow formed by superimposing the first and second grooves 23 and 27 on each other, and restricts the rotation angle of the bracket 25 with respect to the mirror base plate 20. That is, ball bearing 2
Due to the presence of 4, the second groove 27 is different from the first groove 23 in
It rolls on the mirror base plate 20 between two positions, the right end shown in FIG. 4 and the left end shown in FIG. Bracket 25
Is a normal position (see FIG. 4), and a position (FIG. 5) is a retracted (backward) position. In the above example, the rotation angle between the normal position and the retracted position can be set to 60 ° with respect to the center of the center shaft 21 determined by the angle of the arc of the first and second grooves 23 and 27.

Referring again to FIGS. 1 to 3, reference numeral 28 denotes a ring-shaped clutch which is penetrated by the center shaft 21.
A flat surface 30 is formed in the central opening 29 and is therefore supported non-rotatably with respect to the center shaft 21, but movably in the axial direction of the center shaft 21. 31 are four claw portions having a semicircular cross section formed on the upper surface of the clutch 28. The claw portion may be a convex portion having a trapezoidal cross section.

Reference numeral 32 denotes a clutch gear which is a worm wheel arranged above the clutch 28, and the center shaft 21 penetrates a circular opening 33 formed in the center. This clutch gear 32 is used for the center shaft 21.
It is rotatable with respect to. Reference numeral 34 denotes a circular cutout portion formed on the lower surface of the clutch gear 32, and four recesses 35 having a semicircular cross section are formed on the upper surface of the cutout portion 34.
The clutch 28 is housed in the hollowed-out portion 34, and the claw portion 31 of the clutch 28 meshes with the recess 35, and both are mechanically coupled. Further, when the claw portion 31 of the clutch 28 is a trapezoidal convex portion, it is desirable that the concave portion 35 of the clutch gear also be a trapezoidal concave portion.

It is desirable that the clutch gear 32 be arranged as close as possible to the base of the center shaft 21 as described above. The clutch gear 32 receives a pressing force from the worm gear and exerts a lateral force on the center shaft 21, but this is to minimize the adverse effect of this force. For example, when the clutch gear 32 is arranged near the upper end of the center shaft 21, the lateral pressing force causes the bracket 25 to tilt with respect to the mirror base plate 20 and a proper field of view cannot be obtained. .

Reference numerals 36 and 37 denote a pair of conical projections that penetrate the center shaft 21, and the inclination angle of the conical inclined surfaces 38 and 39 with respect to the horizontal plane can be about 26.6 °.
The inclined surfaces 38 and 39 are opposed to each other. Reference numeral 40 denotes a conical concave body that is rotatably supported on the bracket 25 with respect to the center shaft 21, and has a circular opening 41 through which the center shaft 21 penetrates, and conical inclinations on both upper and lower sides centering on the opening 41. It has a surface 42. The inclination angle of these inclined surfaces 42 with respect to the horizontal plane is equal to the inclination angle of the above-mentioned conical convex bodies 36, 37, and can be about 26.6 °.
8, 39 and the inclined surface 40 are in contact with each other. The diameter of the opening 41 is designed to be slightly larger than the outer diameter of the center shaft 21.
It can be slightly moved horizontally in the upper direction. As an example of the dimensions, the diameter of the opening 41 can be 16 mm, and the outer diameter of the center shaft 21 in this portion can be 14 mm. In addition, the conical concave body 40 has an opening 4 in the radial direction.
3 are formed. Reference numeral 44 denotes a guide portion that surrounds the open portion 43 and is integrally formed with the conical concave body 40.
The inclination angle must be 10 ° or more and less than 45 °. Ten
If the angle is smaller than 0 °, the slide body, which will be described later, becomes too thick, and accordingly the outer diameter must be increased, resulting in an unreasonable structure. If the angle is 45 ° or more, the coil spring 13 ( This is because a stronger spring is needed. The conical concave body 40 and the guide portion 44 are arranged in a support frame 45 formed so as to project on the surface of the bracket 25, and are prevented from rotating with respect to the bracket 25.

Reference numeral 46 denotes a slide body which slides in the open portion 43 and the guide portion 44, and the center shaft 21 thereof.
The tip located on the side is the conical inclined surface 4 of the conical concave body 40.
It is formed in a wedge shape in cross section having an inclined surface corresponding to 2. Reference numeral 47 is a coil spring that is housed in the guide portion 44 and has a tip end that constantly elastically biases the slide body 46 toward the center shaft 21. The coil spring 47 has a steel wire diameter (diameter) of 1.6 mm and a winding outer diameter.
The length is 10 mm and the mounting length is 15 mm. Coil spring 47
1, the slide body 46 is elastically pressed in the right direction in FIG. 1, and the conical concave body 40 is elastically pressed in the left direction, and a force is applied in the center direction of the center shaft 21.

Reference numeral 48 is a C ring that prevents the clutch gear 32 from being pulled out upward, and is locked to the upper end of the center shaft 21.

Reference numeral 51 is a second worm gear for transmitting a rotational force to the clutch gear 32, 52 is a second reduction gear, 5
Reference numeral 0 is a first reduction gear group, 49 is a first worm gear, and 53 is a reversible motor. These are supported by the bracket 25. A cord (not shown) for supplying power to the reversible motor 53 is introduced below the mirror base plate 20 through the hollow portion of the center shaft 21 and connected to the vehicle body side.

In such a structure, in a normal state, the elastic force of the coil spring 47 elastically presses the slide body 46 and the conical concave body 40 toward the center shaft 21. The conical projections 36 and 37 are pressed in the vertical direction by the right inclined surface (FIG. 1), and the pressing force causes the clutch 28 to engage with the clutch gear 32.

Next, the operation of the above structure will be described. In a normal state, the driving force of the reversible motor 53 is reduced by the rotation of the reversible motor 53 via the first worm gear 49 and the first reduction gear group 50, and the clutch is transmitted via the second reduction gear 52 and the second worm gear 51. It is transmitted to the gear 32. Since the clutch gear 32 is engaged with the clutch 28, a rotational force is also applied to the clutch 28 at the same time. Clutch 28
Since it is non-rotatably supported with respect to the center shaft 21, it tries to rotate the center shaft 21. However, since the center shaft 21 is fixed to the vehicle body via the mirror base plate 20,
The clutch 28 side, that is, the bracket 25 as a whole rotates about the center shaft 21. In this way, the door mirror is rotated from the normal use position to the storage position and from the storage position to the normal position by the forward and reverse rotations of the reversible motor.

When the door mirror is stored, the bracket 25
The second groove 27 formed in the
It is stopped at the position moved to the left side with respect to the first groove 23 formed to 0 as shown in FIG. When this is erected in the normal use position, the reversible motor 53 is driven to rotate forward as described above. When the door mirror reaches the normal position,
As shown in FIG. 5, the second groove 27 is located at the right end with respect to the first groove 23. Bracket 2 from storage position to use position
Since the rotation of the ball bearing 5 is performed by the rolling of the ball bearing 24, the resistance between the bracket 25 and the mirror base plate 20 is extremely small during this period. In the normal use position of the door mirror, the ball bearing 24 abuts on each end of the first and second grooves 23, 27, and at this time, the reversible motor 53
Rotational resistance is added to, and an overload current flows in the reversible motor 53. Upon detecting this, the reversible motor 53 is stopped. Even at the storage position of the door mirror, the door mirror is stopped by the same detection method. The reversible motor 53 is driven to rotate in the reverse direction when the door mirror is stored.

As shown in FIGS. 3 and 7, the projection 54 formed on the surface of the mirror base plate 20 is provided with the third portion of the bracket 25 as the door mirror is retracted and rotated to the normal position.
When it moves in the groove 55 and is in the storage position, it is located near one end as indicated by the broken line a in FIG. When it is in the normal position, it is located near the middle of the groove 55 as shown by the broken line b.

Next, when an obstacle collides with the door mirror and a strong force for pushing the door mirror backward suddenly acts, a large turning force (clockwise in FIG. 1) is applied to the clutch gear 32, which causes The concave portion of the clutch gear 32 is disengaged from the claw portion 31 of the clutch 35. Since the rotational force of the clutch gear 32 is large, the clutch gear 32 is pushed upward against the pressing force of the coil spring 47. At this time, when the clutch gear 32 is pushed up, the conical convex body 37 is also pushed up, the slide body 46 moves slightly outward (to the left in the figure), and the conical concave body 40 also slightly goes to the right in the figure. And the coil spring 47 is compressed. Thus, the bracket 25 becomes rotatable with respect to the center shaft 21 and rapidly rotates in the retracted direction, so that the ball bearing 24 abuts against the end portions of the first and second grooves 23 and 27 or the protrusion 54 moves to the first position in the retracted position. It hits the end of the groove 55 of No. 3 and stops. After returning to the normal position after stopping at the storage position, the reversible motor 53 may be rotated in the normal position direction. That is, the clutch gear 3 is driven by driving the reversible motor 53.
2 rotates, and idles until the recess 35 of the cutout 34 matches the claw 31 of the clutch 28.
After the engagement with the claw portion 31, the clutch 28 is rotated to transmit the driving force to the shaft 21, and the bracket 25 is rotated toward the normal position.

Conversely, when an obstacle collides with the door mirror from the rear and a strong force that pushes the door mirror forward suddenly acts, a large turning force is applied to the clutch gear 32, and therefore the concave portion of the clutch gear 32 is depressed. 35 is disengaged from the claw portion 31 of the clutch 28. As in the case described above, the clutch gear 32 is pushed upward by the rotational force of the clutch gear 32. In the normal use position of the door mirror, the ball bearing 24 is in contact with the right end of the first groove 23 and the left end of the second groove 27 as shown in FIG. Due to the rotational force, the ball bearing 24 is disengaged from the first and second grooves 23 and 27 as shown in FIG. 6 and further rotated. At this time, the slide body 46 moves the coil spring 47.
Is further pressed outward against the elastic force of. As shown in FIGS. 3 and 7, the projection 54 comes into contact with the other end of the third groove 55 (shown by C in FIG. 7) to stop the door mirror. After returning the door mirror to the front, the reversible motor 53 may be rotated in the storing direction to return to the use position. That is, the clutch gear 32 is rotated by the rotational drive of the reversible motor 53, and the concave portion 35 of the hollow portion 34 of the clutch gear 32 is first rotated.
Engages with the claw portion 31 of the clutch 28 to rotate the bracket 25 with respect to the shaft 21. When the clutch 28 reaches the normal position, the ball bearing 24 enters the first groove and the second groove 23, 27 and is further driven to the retracted position. When the ball bearing 24 rolls on the surface of the mirror base plate 20 and the surface of the bracket 25 while being disengaged from the first groove and the second groove 23, 27, the surface of the mirror base plate 20 is regulated in order to regulate the moving direction of the ball bearing 24. The narrow groove 56 can also be provided.

[0026]

According to the present invention, the clutch gear and the clutch are engaged with each other by the slide body that slides in the direction perpendicular to the center shaft axis and the coil spring that elastically presses the slide body. This center shaft can be made shorter than the conventional one. Therefore, the height of the component portion including the center shaft can be reduced, the aesthetic appearance can be improved, and the aerodynamic resistance can be further suppressed.

Further, according to the present invention, by setting the inclination angle α of the conical concave body and the conical inclined surface with respect to the horizontal line to be 10 ° or more and less than 45 °, the load applied to the coil spring is the coil passed through the conventional center shaft. The weight applied to the spring can be multiplied by tan α. The optimum example is α = 26.6 ° and tan α = 0.5, so the load can be halved compared to the conventional load. As a result, even a coil spring that is smaller in size and weaker in force than the conventional one can obtain a spring elasticity force (meshing force between the clutch gear and the clutch) equal to or higher than that of the conventional one. Further, since the contact surface between the slide body and the conical convex body and the movement of the slide body are controlled, it is possible to further reduce the elastic force of the coil spring.

Further, according to the present invention, the mirror base plate and the bracket are provided with arc-shaped first and second grooves, respectively, and are arranged so as to overlap with each other, and the ball bearing is housed in the groove space. Since the rotation with respect to the mirror base plate is performed by using the trajectory of the ball bearing, the rotation resistance of the bracket is extremely small. Therefore, it is possible to use a motor having a smaller output than before, and further downsizing can be achieved. .

Furthermore, according to the present invention, a protrusion is provided on the mirror base plate, and a third groove for accommodating and moving the protrusion is formed on the bracket side, thereby restricting the rotation range of the bracket, and the door mirror of the door mirror. The storage location can be determined.

Further, according to the present invention, since the clutch gear is arranged on the bracket, that is, at a position close to the base of the center shaft, even if the worm gear meshing with the clutch gear applies a force to press the clutch gear to the clutch gear, This force does not adversely affect the fixing of the mirror base plate and the bracket.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a cross-sectional perspective view of a main part of the embodiment.

FIG. 3 is a perspective view of a main part of the embodiment.

FIG. 4 is a cross-sectional view of main parts for explaining the embodiment.

FIG. 5 is a cross-sectional view of essential parts for explaining the embodiment.

FIG. 6 is a cross-sectional view of a main part for explaining the embodiment.

FIG. 7 is a main-portion cross-sectional view for explaining the same embodiment;

FIG. 8 is an exploded perspective view showing a conventional example.

FIG. 9 is a cross-sectional perspective view showing a conventional example.

[Explanation of symbols]

 20 ………… Mirror base plate 21 ………… Center shaft 23 ………… First groove 24 ………… Ball bearing 25 ………… Bracket 27 ………… Second groove 28 ………… Clutch 32 ………… Clutch gear 36 ... Conical convex body 37 ... Conical convex body 40 ... Conical concave body 43 ... Open part 44 ... Guide part 46 ... Slide part 47 ... Coil spring 53 ... ...... Reversible motor 54 ………… Protrusion 55 ………… Third groove

Claims (2)

[Claims] 1. A mirror base plate which projects outward from a vehicle body of a front door and is fixed substantially horizontally, a center shaft fixed substantially vertically to the mirror base plate, and a rotatably supported by the center shaft on the mirror base plate. Bracket, a clutch gear rotatably pierced on the bracket and rotatably maintained with respect to the center shaft, and the center shaft between the clutch gear and the bracket. Which is rotatably supported by the center shaft and is movable only in the axial direction of the center shaft, the clutch meshing with the clutch gear, the center shaft being penetrated, A diameter larger than the outer diameter of A cone-shaped concave body held by a bracket and having a laterally open portion, which is located in the open portion and is movable in the semicircular direction of the cone-shaped concave body, and A slide body having a wedge shape whose tip substantially coincides with the conical inclined surface of the conical concave body, a coil spring for elastically biasing the slide body in the center shaft direction, and arranged above and below the conical concave body, respectively. A convex inclined surface that is supported by the center shaft in a rotatable state and is movable in the axial direction of the center shaft, and that substantially corresponds to the concave inclined surfaces on the upper and lower surfaces of the conical concave body. And a pair of conical convex bodies, the convex inclined surface of which faces the concave inclined surface,
A fixing member that prevents the upper conical convex body from moving upwardly of the center shaft, is fixed to the bracket,
An automobile door mirror comprising a reversible motor whose driving force is transmitted to the clutch gear, and a mirror mounted on the bracket. 2. A first groove provided in an arc shape on a circumference centered on the center shaft on a surface of the mirror base plate facing the bracket, and on a surface of the bracket facing the mirror base plate. Provided in an arc shape on the circumference centered on the center shaft,
An arc-shaped second groove having the same radius as that of the first groove and the first and second grooves are overlapped with each other and housed in a space formed by the first and second grooves. A ball bearing that restricts a rotation angle of the bracket with respect to the mirror base plate and determines a normal position and a storage position at a position of the second groove with respect to the first groove, and a surface of the mirror base plate facing the bracket. A groove formed on the surfaces where the projection of the bracket and the projection of the bracket face each other, the projection is housed and movable, and is formed on the circumference around the center shaft, and its end portion The vehicle door mirror according to claim 1, further comprising a third groove for restricting a front tilt position and a rear tilt position of the door mirror.