JP3996441B2 - Vehicle side mirror - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle side mirror including a mirror main body having a housing that covers the mirror, and a base that rotatably supports the mirror main body.
[0002]
[Prior art]
Conventionally, as shown in FIG. 11, a vehicle side mirror 4 including a mirror body 2 provided with a mirror 1 and a base 3 that rotatably supports the mirror body 2 is known.
[0003]
The base 3 is attached to a vehicle body panel 6 such as a front door of a vehicle via a gasket 5. The base 3 is provided with a support portion 7 that rotatably supports the mirror body 2, and a shaft 8 that pivotally supports the mirror body 2 is installed on the support portion 7.
[0004]
The housing 9 of the mirror body 2 is provided with a mirror holder 10 that holds the mirror 1, and a tilt mechanism unit (not shown) that tilts the mirror holder 10 to adjust the orientation of the mirror 1 and the mirror body 2. A rotation mechanism unit (not shown) for performing the rotation operation is incorporated. The mirror main body 2 is attached to the support portion 7 of the base 3 by attaching the rotation mechanism unit to the shaft 8, and the standing position (use position) and the lying position (storage position) are activated by the operation of the rotation mechanism unit. Rotate between.
[0005]
A convex curved wall 11 having an arcuate horizontal cross section centered on the shaft 8 is formed on the rotating base side of the housing 9, and the base 3 is opposed to the convex curved wall 11 in the vicinity. A concave curved wall 12 is provided.
[0006]
In such a vehicle side mirror 4, when the vehicle travels, air flows into the gap 13 formed by the convex curved wall 11 of the housing 9 and the concave curved wall 12 of the base 3 from the front of the vehicle. There is a problem that wind noise is likely to occur due to high-speed flow in a circular arc along the convex curved wall 11 and the concave curved wall 12 (see arrows A and B in FIG. 11).
[0007]
For this reason, today, as in the invention disclosed in Japanese Utility Model Publication Nos. 3-16770 and 6-5264, an elastic member such as a sponge or a tape on one of the convex curved wall 11 or the concave curved wall 12. 14, and the elastic member 14 is brought into contact with the other of the convex curved wall 11 or the concave curved wall 12 (see FIG. 12), thereby obstructing the air flow in the gap 13 and reducing wind noise. Is considered.
[0008]
[Problems to be solved by the invention]
However, in the vehicle side mirror provided with the elastic member 14 as described above, the mirror main body 2 is caused by friction generated by the elastic member 14 and the curved wall with which the elastic member 14 contacts when the mirror main body 2 rotates. There was a problem that the smooth rotation of the motor could be hindered. Further, since it is necessary to provide the elastic member 14 separately from the mirror main body 2 and the base 3, there is a problem that the cost is increased as compared with the conventional vehicle side mirror.
[0009]
The present invention has been made in view of the above circumstances, and it is possible to prevent wind noise generated by an air flow passing between the convex curved wall of the housing and the concave curved wall of the base while ensuring smooth rotation of the mirror body. It is an object of the present invention to provide a vehicle side mirror that can be reduced.
[0010]
[Means for Solving the Problems]
In order to solve the above-described problem, an invention according to claim 1 includes a mirror main body having a housing that covers a mirror, and a base that rotatably supports the mirror main body. A concave curved wall is formed opposite to the convex curved wall on the base side, and a concave extending along the rotation direction of the mirror body is formed on the convex curved wall of the housing, and the concave shape of the base is formed. A convex portion that enters the concave portion is formed on the curved wall, and when the mirror main body stands up, an outer peripheral surface on the vehicle front side of the convex portion and an inner periphery of the concave portion that faces the outer peripheral surface on the vehicle front side surface and is characterized that you close.
[0012]
According to a second aspect of the present invention, in the vehicle side mirror according to the first aspect, the vehicle front-side outer peripheral surface of the convex portion is inclined such that the height increases in a direction in which the mirror main body stands from the lying position. It is a surface.
[0013]
The invention according to claim 3 includes a mirror main body having a housing that covers the mirror, and a base that rotatably supports the mirror main body, and the base is provided with a convex curved wall on the rotating base side of the housing. A concave curved wall that is opposed to and close to the base, and a concave that extends along the direction of rotation of the mirror main body is formed in the concave curved wall of the base, and the concave when the mirror main body stands up and the vehicle rear-side inner circumferential surface of the outer peripheral surface of the convex portion opposed to said vehicle rear side inner peripheral surface and is characterized that you close.
[0015]
According to a fourth aspect of the present invention, in the vehicle side mirror according to the third aspect, the vehicle rear side inner peripheral surface of the recess becomes higher in a direction in which the mirror main body stands up from the lying position. It is an inclined surface.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1A and 1B, a vehicle side mirror 20 according to the present invention includes a mirror body 23 having a housing 52 that covers the mirror 51, and a vehicle body panel 21 such as a front door of the vehicle. And a base 22 that is attached to (a part of the vehicle body panel located at the lower part of the front pillar, etc.) and rotatably supports the mirror body 23.
[0017]
As shown in FIGS. 2 to 5, the housing 52 of the mirror body 23 includes a mirror holder 53 that holds the mirror 51, and a tilt mechanism unit (not shown) that adjusts the orientation of the mirror 51 by tilting the mirror holder 53. ) And a rotating mechanism unit 55 for rotating the mirror main body 23. A housing 59 of the rotation mechanism unit 55 is fixed inside the housing 52, and a shaft insertion hole 58 that faces a circular opening 56 formed in the bottom of the housing 52 is formed in the housing 59. A shaft 32 (described later) is inserted into the shaft insertion hole 58 so that the rotation mechanism unit 55 and the housing 52, and thus the mirror body 23, rotate with respect to the shaft 32. Step portions 58 a and 58 b are formed on the peripheral surface of the shaft insertion hole 58, and step portions 59 a and 59 b are formed on the lower portion of the outer peripheral surface of the housing 59.
[0018]
The side wall of the housing 52 on the side of the rotation base (the side where the circular opening 56 is formed) is a convex curved wall 62 having an arcuate horizontal section centered on the center of the circular opening 56. The convex curved wall 62 is formed with a recess 63 extending along the rotation direction of the mirror main body 23, and the recess 63 includes a curved surface 64 and inner peripheral surfaces 65, 66, 68 surrounding the curved surface 64. The curved surface 64 has an arc shape (convex shape) whose horizontal cross section is concentric with the shape of the convex curved wall 62, and the inner peripheral surface 65 and the inner peripheral surface 66 are located on the front side of the mirror main body 23 in the recess 63. Located on the rear side. The inner peripheral surface 65 is an inclined surface in which the upper portion 65a is inclined rearward relative to the lower portion 65b. When the height of the inner peripheral surface 65 is h1 and the height of the inner peripheral surface 66 is h2, the relational expression of h1 <h2 is satisfied. Holds. The inner peripheral surface 68 connects the upper edges of the inner peripheral surfaces 65 and 66, and is gently inclined so that the height gradually increases from the front to the rear of the mirror body 23 from the above relational expression.
[0019]
As shown in FIGS. 6 and 7, the base 22 has a triangular shape and is fixed to the vehicle body panel 21 via a gasket (not shown), and the base 22 protrudes from the base 24 to the side of the vehicle. A raised portion 26 that guides the airflow along the surface of the mirror body 23 to the surface of the mirror main body 23, and a dish-like support portion 27 formed so as to protrude obliquely rearward of the raised portion 26 in the vehicle.
[0020]
The support part 27 is provided with a plurality of attachment parts 34 formed with screw insertion holes 34 a along the peripheral edge, and provided with an opening 31 communicating with the conduction path 30 formed inside the base part 24 and the support part 27. It has been. As shown in FIG. 8, the mirror body 23 is rotatably supported by the support portion 27 via a shaft holder 33 having a seat portion 41 and a shaft 32.
[0021]
Specifically, a screw hole 41b is formed on the lower surface 41a of the seat portion 41 of the shaft holder 33 (see FIG. 5), and stoppers 42, 42 ′, 43, and 43 ′ are formed on the upper surface 41c of the seat portion 41. Furthermore, a through hole 40 is formed in the center of the shaft 32 so as to penetrate the shaft holder 33 up and down. When the screw 35 inserted through the screw insertion hole 34a is screwed into the screw hole 41b, the shaft holder 33 is fixed to the support portion 27, and the through hole 40 and the conduction path 30 communicate with each other. A harness 39 (see FIG. 1) extending from the tilt mechanism unit and the rotation mechanism unit 55 is connected to the control circuit on the vehicle body side through the through hole 40 and the conduction path 30 and the shaft 32 of the shaft holder 33. Is inserted into the shaft insertion hole 58 through the circular opening 56 of the mirror body 23, whereby the mirror body 23 can be rotated (electrically stored) and the mirror 51 (mirror holder 53) can be tilted. In addition, when the mirror main body 23 rotates in the lying down direction indicated by the arrow C in FIG. 1, when the stepped portions 58 a and 59 b come into contact with the side surfaces 42 a and 43 b of the stoppers 42 and 43, When the mirror main body 23 rotates in the standing direction indicated by the arrow D in FIG. 1, the step portions 58b and 59a are provided on the side surfaces 42′b of the stoppers 42 ′ and 43 ′. , 43′a is brought into a standing position (use position) and further rotation is restricted.
[0022]
A location where the shaft 32 is positioned on the base 22 so as to face the convex curved wall 62 of the housing 52 with an interval H of about 1 mm when the mirror body 23 is attached to the support portion 27 (the circular opening described above). A concave curved wall 28 having an arcuate horizontal cross section centered on a portion where the central portion of 56 is located) is formed. A convex portion 46 protruding toward the shaft holder 33 is formed at a location on the vehicle front side of the concave curved wall 28.
[0023]
The convex portion 46 has a curved surface 47 serving as a top portion thereof, a front surface 48 and a rear surface 67 formed before and after the curved surface 47, and an upper surface 50. Enter the recess 63. The curved surface 47 has an arc shape (concave) whose horizontal section is concentric with the shape of the concave curved wall 28, and maintains a substantially constant distance from the curved surface 64 of the recess 63 regardless of the rotational position of the mirror body 23. Facing each other. The front surface 48 is an inclined surface in which the upper part 48a is inclined rearward from the lower part 48b and becomes higher in the upright direction, and is substantially parallel to the inner peripheral surface 65 when the mirror body 23 is in the upright position. Keep close. The upper surface 50 connects the upper edges of the front surface 48 and the rear surface 67, is gently inclined so that the height gradually increases from the front to the rear of the vehicle, and is substantially the same as the inner peripheral surface 68 when the mirror body 23 is in the standing position. Keep close in parallel.
[0024]
In the vehicle side mirror 20 according to this embodiment, air has flowed into the gap 70 (see FIG. 1) between the convex curved wall 62 of the mirror main body 23 and the concave curved wall 28 of the base 22 when the vehicle is traveling. However, since the convex portion 46 formed in the concave curved wall 28 enters the concave portion 63 formed in the convex curved wall 62, the air flow is inhibited from flowing on the front surface 48 of the convex portion 46, and the momentum is increased. The airflow is reduced, and the flow rate of air passing through the gap 70 is also suppressed to reduce wind noise. In particular, since the convex portion 46 is positioned forward in the recess 63 and the front surface 48 and the inner peripheral surface 65 are close to each other, wind noise is further prevented as compared with the case where the front surface 48 and the inner peripheral surface 65 are located rearward. . Furthermore, as shown in FIG. 4, the front surface 48 of the convex portion 46 rises at a substantially right angle with respect to the concave curved wall 28 in plan view, and the inner peripheral surface 65 of the concave portion 63 faces the convex curved wall 62. Since the gap 70 rises at a substantially right angle in a plan view and has a crank shape, the airflow is effectively decelerated and contributes to the reduction of wind noise.
[0025]
On the other hand, since the vehicle side mirror 20 is not provided with an elastic member or the like in contact with the convex curved wall 62 or the concave curved wall 28 in the gap 70, the mirror body 23 can be smoothly rotated by such a member. There is no hindrance or cost increase.
[0026]
Further, since the front surface 48 of the convex portion 46 is an inclined surface whose height increases in the standing direction, any object from the vehicle rear side is placed on the mirror main body 23 in the standing position as indicated by a chain line in FIG. Even if the mirror collides, the mirror main body 23 can ride on the inclined surface (front surface 48) as shown in FIG. 5B and further rotate as shown by the solid line in FIG. Thus, the impact applied to the collided object or the like can be mitigated by relatively easily rotating beyond the standing position.
[0027]
The vehicle side mirror according to the present invention is not limited to the above-described form. For example, in the above-described embodiment, the concave curved wall 62 of the base 22 is provided with the recess 63 in the convex curved wall 62 of the housing 52. Although the convex portion 46 is provided, the convex portion 46 is provided on the convex curved wall 62 of the housing 52 and the concave portion 63 is provided on the concave curved wall 28 of the base 22 as shown in FIG. Good. Further, as shown in FIG. 5B, the convex portion 46 may be provided on the vehicle rear side of the convex curved wall 62, and the concave portion 63 into which the convex portion 46 enters the concave curved wall 28 may be provided. As shown in the figure (c), the convex portion 46 may be provided on the vehicle rear side of the concave curved wall 28, and the concave portion 63 into which the convex portion 46 enters the convex curved wall 62 may be provided (for the concave portion 63). As shown in FIGS. 4A and 4C, the front side or the rear side may be stepped.
[0028]
Further, as shown in FIGS. 10A and 10B, it is possible to reduce wind noise by bringing the inner peripheral surface 66 of the recess 63 and the rear surface 67 of the convex portion 46 close to each other. The inner peripheral surface 66 of the recess 63 is raised substantially perpendicular to the concave curved surface 28 in plan view, and the rear surface 67 of the convex portion 46 is substantially perpendicular to the convex curved surface 62 in plan view. By starting up, it is possible to form the gap 70 on the crank, effectively decelerate the air flow, and further reduce wind noise. Further, by forming the inner peripheral surface 66 of the recess 63 as an inclined surface whose height increases in the standing direction, any object from the rear side of the vehicle is placed on the mirror main body 23 in the standing position, as in the above embodiment. In the event of a collision, etc., the mirror main body 23 can be ridden on the inclined surface of the inner peripheral surface 66 and rotated beyond the standing position, thereby mitigating the impact applied to the collided object or the like.
[0029]
【The invention's effect】
Since the vehicle side mirror according to the present invention is configured as described above, the airflow passing between the convex curved wall of the housing and the concave curved wall of the base while ensuring smooth rotation of the mirror body. It is possible to reduce the wind noise caused by.
[Brief description of the drawings]
1A and 1B are diagrams showing a vehicle side mirror according to the present invention, in which FIG. 1A is a plan view and FIG.
FIG. 2 is a view of the housing of the vehicle side mirror according to the present invention as seen from the rotating base side.
FIG. 3 is a view of the housing of the vehicle side mirror according to the present invention as viewed from below.
FIG. 4 is a horizontal sectional view of a vehicle side mirror according to the present invention.
FIG. 5 is an end view of the vehicle side mirror according to the present invention cut along a cross section in the vehicle width direction passing through the support shaft of the shaft member.
FIG. 6 is a plan view showing a base of a vehicle side mirror according to the present invention.
FIG. 7 is a view of the base of the vehicle side mirror according to the present invention as seen from the rear of the vehicle.
FIG. 8 is a perspective view showing a shaft holder according to the present invention.
FIG. 9 is a view showing a vehicle side mirror when an object or the like collides with the mirror body according to the present invention from the rear side of the vehicle, and (a) is a plan view showing the vehicle side mirror. (B) is a cross-sectional view showing a state where the mirror body rides on the inclined surface of the convex portion due to a collision.
FIG. 10 is a horizontal sectional view showing another embodiment of the vehicle side mirror according to the present invention.
FIG. 11 is a horizontal sectional view showing a conventional vehicle side mirror.
FIG. 12 is an enlarged view showing a convex curved wall and a concave curved wall of a conventional vehicle side mirror.
[Explanation of symbols]
1, 51 Mirror 2, 23 Mirror body 3, 22 Base 4, 20 Vehicle side mirror 9, 52 Housing 11, 62 Convex curved wall 12, 28 Concave curved wall 46 Convex part 48 Front surface (vehicle front side outer peripheral surface)
63 Recess 65 Inner peripheral surface (vehicle front side inner peripheral surface)
66 Inner peripheral surface (vehicle rear-side inner peripheral surface)
67 Rear surface (vehicle rear outer peripheral surface)

Claims (4)

A concave body comprising a mirror body having a housing that covers the mirror and a base that rotatably supports the mirror body, and facing the base in close proximity to the convex curved wall on the rotating base side of the housing. A wall is formed, a concave extending in the direction of rotation of the mirror body is formed in the convex curved wall of the housing, and a convex portion that enters the concave is formed in the concave curved wall of the base ;
When the mirror body has been erected, the vehicle front side outer peripheral surface of the convex portion, the vehicle side mirror and the inner peripheral surface of the recess, characterized that you close opposed to said vehicle front side outer peripheral surface . The vehicle front-side outer peripheral surface of the convex portion, a vehicle side mirror according to claim 1, wherein the mirror body and said inclined surface der Rukoto height toward increases rising from the laid posture. A concave body comprising a mirror body having a housing that covers the mirror and a base that rotatably supports the mirror body, and facing the base in close proximity to the convex curved wall on the rotating base side of the housing. A wall is formed, a recess extending along the rotational direction of the mirror body is formed in the concave curved wall of the base, and a convex portion entering the recess is formed in the convex curved wall of the housing ; when the mirror body has been erected, the vehicle rear-side inner peripheral surface of the recess, the vehicle side outer peripheral surface of the convex portion opposed to said vehicle rear side inner peripheral surface and is characterized that you close mirror. 4. The vehicle side mirror according to claim 3, wherein the vehicle rear side inner peripheral surface of the recess is an inclined surface having a height that increases in a direction in which the mirror main body stands from a lying position .

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