JP2000085474A - Outside mirror for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outside mirror device for a vehicle, simple in structure of fitting an electronic camera to an outside mirror housing, maintaining airtightneses without increasing the number of part items, improving light transmittance and moreover constituted in such a way that the electronic camera is automatically rotatable when a mirror is rotated. SOLUTION: In this outside mirror device 10 for a vehicle, a fitting recessed part 32 recessed inward in V-shape from an opening part of a rear view mirror housing 20 is formed at a part of a mirror holder 30 to fit a board camera Ca to the inclined face 32A, and a half mirror M is fitted to an outer peripheral support part 31 of the mirror holder 30. At the time of fitting the half mirror M, a packing 50 is interposed between the outer peripheral part of the fitting recessed part 32 and the back face of the half mirror M fitted to the outer peripheral part of the fitting recessed part 32 so as to form structure of closing the board camera Ca inside the fitting recessed part 32. The mirror holder 30 fitted with the board camera Ca and the half mirror M is mounted on the opening part of the outside mirror housing 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-sized solid-state imaging device, for example, a vehicle door mirror device incorporating a small board camera composed of a CCD.

[0002]

2. Description of the Related Art A general passenger car is usually provided with a mirror device in which a mirror for checking a traffic situation behind is installed at doors of a driver's seat and a passenger seat. In a so-called door mirror device, when a driver checks the traffic situation behind the vehicle, he or she controls the passenger car while checking the scene reflected on the mirror of the door mirror device, but checks the scene reflected on the mirror. In such a case, the driver will be driven to look aside at the moment. In particular, when checking with a door mirror device far from the driver, the angle of inattentiveness increases. For this reason, many drivers tend to rely only on the rearview mirror and not use the door mirror device to check the traffic situation behind.

In order to prevent such a driving lacking in safe driving, a door mirror device as shown in FIGS. 3 and 4 has been proposed. FIG. 3 is a front view of a conventional door mirror device, and FIG. 4 is a cross-sectional view taken along line AA of FIG. The door mirror device 100 has a structure in which a half mirror 110 and an electronic camera 120 are incorporated in a cup-shaped door mirror housing 101. The half mirror 110 is supported by a mirror holder 111 from the outer peripheral edge to the rear surface thereof, and is attached to the door mirror housing 101 by a rotation support device 130 so as to cover the entire opening 102 of the door mirror housing 101. The rotation support device 130 is a half mirror 11
The rotating support member 131 includes a spherical rotating support member 131 for rotating and supporting the rotating member 0 vertically and horizontally, and a drive motor 132 for driving the rotating support member 131 vertically and horizontally.

The electronic camera 120 is built in the side of the door mirror housing 101 where the depth is located. The objective lens section 121 is located behind the inner surface of the half mirror 110, and the image pickup element section 122 such as a CCD is connected to the door mirror housing 101. Is fixed to a mounting portion 103 formed so as to protrude from the back surface. The electronic camera 120 has a water drop in the field of view of the objective lens unit 121,
The electronic camera 120 is mounted on a shield member 1 such as a rubber cylinder or bellows so that the visibility is not deteriorated due to the attachment of moisture and dust.
04 to protect it from water droplets, moisture or dust. For this reason, the rear end of the shield member 104 is fixed to the opening of the mounting portion 103, and the front end is fixed to the back surface of the half mirror 110 by means such as bonding.

[0005] Although not shown, a monitor device for displaying an image photographed by the electronic camera 120 is connected to the electronic camera 120 and disposed in front of a driver's seat.

[0006] The door mirror device 10 thus configured
When the driver turns on the power with the engine key, the driver operates the half mirror 110 up, down, left and right to adjust the angle, and the electronic camera 12
0 can be displayed on the monitor device, and the driver can confirm the situation behind the vehicle almost in front of himself without driving aside.

[0007]

However, the prior art door mirror device 100 having the above configuration has the following problems. That is, 1. Since the electronic camera 120 is attached to the door mirror housing 101, even if the half mirror 110 is moved for adjusting the field of view, the electronic camera 120 does not move in conjunction therewith. 2. Since the electronic camera 120 and the mirror have a distant positional relationship, a wide viewing area Sa (FIG. 3) of the electronic camera 120 must be secured, and therefore, the mirror needs to be a half mirror. When the mirror becomes a half mirror,
The transmittance of light to the electronic camera 120 is reduced to about 30%, and the visibility of the electronic camera 120 in morning and evening hours when light is weak is reduced. The mirror is a half mirror 110
Therefore, all components disposed on the back surface of the half mirror 110 need to be black. Otherwise, the internal components are visible. 3. Shield member 1 in door mirror housing 101
The mounting of the door mirror 04 must be secured and secured to both the electronic camera 120 on the mounting portion 103 side of the door mirror housing 101 and the back surface of the rotating half mirror 110 with security, and is a structure that is very difficult to assemble. belongs to.

The present invention has been made to solve these problems, and has a simple structure for mounting an electronic camera on a door mirror housing, can maintain airtightness without increasing the number of parts, and can transmit light. It is an object of the present invention to provide a vehicle door mirror device having an improved efficiency and a structure in which an electronic camera can automatically rotate when the mirror rotates.

[0009]

Therefore, a vehicle door mirror device according to the present invention as set forth in claim 1 comprises at least a mirror, a board camera, and a mirror holder for holding the mirror and the board camera in a door mirror housing. In the vehicle door mirror device configured to be attached to the opening, the mirror holder is formed in the outer peripheral edge portion supporting the mirror and a part of the outer peripheral portion of the mirror holder so as to be recessed rearward from the opening portion. A mounting portion is formed, and the mirror is held by the outer peripheral portion, and the mirror holder having the board camera fixed to the mounting portion is mounted on an opening of the door mirror housing.

The vehicle door mirror device according to the first aspect of the present invention is characterized in that the mirror is constituted by a half mirror. Still further, in the vehicle door mirror device according to the first aspect of the present invention, the mirror is configured by a normal mirror, and a minute area portion of the mirror facing the objective lens portion of the board camera is configured by transparent glass. It is characterized by the following.

Therefore, according to the vehicle door mirror device of the first aspect of the present invention, the board camera can be rotated integrally with the rotation of the half mirror, and hermetically sealed with an extremely simple structure. be able to. Further, according to the vehicle door mirror device of the present invention described in claim 2, the light transmittance to the board camera can be greatly improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle door mirror device according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front view of a vehicle door mirror device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

In FIG. 1, reference numeral 10 denotes a vehicle door mirror device according to an embodiment of the present invention. The vehicular door mirror device 10 includes a door mirror housing 20, a half mirror M, a small board camera Ca, a mirror holder 30 for holding the half mirror M and the board camera Ca, and a rotation of the mirror holder 30. Rotation support device 40 to be driven and door mirror housing drive device 50
Are mounted in the door mirror housing 20.

The door mirror housing 20 has a rectangular opening 21 in which a rectangular half mirror M can be mounted.
Is formed in an open cup-like structure, and a support member 22 for attaching to a front door of the vehicle is formed from the back or side surface thereof. The mirror holder 30
Is formed with a rectangular outer peripheral support 31 whose outer periphery follows the shape of the opening 21.
Supports the outer peripheral edge of the half mirror M, and is recessed inwardly from an opening 21 of the door mirror housing 20 in an outer portion of the mirror holder 30 opposite to the vehicle side. A pivot fulcrum bearing portion 33 serving as a fulcrum for pivoting the mirror holder 30 left and right and up and down at the center of the rear surface thereof, and disposed below the pivot fulcrum bearing portion 33; A vertical rotation bearing portion 34 for rotating the mirror holder 30 in the vertical direction, disposed at an angle of substantially 90 ° with respect to the vertical rotation bearing portion 34, and a left and right for rotating the mirror holder 30 in the left and right direction. A rotation bearing 35 is formed. The mirror holder 30 having this structure can be integrally formed by resin molding.

The turning support device 40 has a sphere formed at the tip for turning and supporting the mirror holder 30 vertically and horizontally, and is supported by the turning fulcrum bearing 33 to turn. A vertically rotating support shaft 42, which is provided below and has a sphere formed at a tip portion for vertically supporting the mirror holder 30 to rotate vertically, and which is supported by the vertically rotating bearing portion 34 and rotates. And a sphere is formed at an end portion for supporting the mirror holder 30 in the left-right direction, and a sphere is formed. A left-right rotation support shaft (not shown) that rotates while being supported by the portion 35 is formed. In order to drive the mirror holder 30 up, down, left and right around the rotation fulcrum bearing 33 and the rotation support shaft 41, the rotation support device 40 includes the vertical rotation support shaft 4.
Motor (not shown) for driving the rotation support shaft 4
(Not shown) for driving the motor 3 and the power of these motors are transmitted to the vertical rotation support shaft 42 and the horizontal rotation support shaft 43.
And a power transmission mechanism for transmitting power to the vehicle.

The board camera Ca is mounted on the inclined surface 32A of the mounting recess 32 of the mirror holder 30 so as to face outward from the vehicle side, and the half mirror M is mounted on the outer peripheral support 31 of the mirror holder 30. Can be In mounting the half mirror M, the outer periphery of the mounting recess 32 and the mounted half mirror M
A structure is adopted in which a packing 50 is interposed between the back surface and the inside of the mounting recess 32, and thus the board camera Ca is sealed. Board camera Ca and half mirror M
Is attached to the opening 21 of the door mirror housing 20. In this case, the inside of the door mirror housing 20 can be sealed by connecting the gap between the outer peripheral portion of the mirror holder 30 and the inner peripheral surface of the opening 21 of the door mirror housing 20 with a thin rubber sheet (not shown).

The mirror holder 30 mounted on the door mirror housing 20 has a pivot support shaft 33 formed on the back of the mirror holder 30 and a vertical pivot support shaft 42 centered on a spherical pivot support shaft 41. Alternatively, the mirror holder 30 is rotatably supported by driving the left-right rotation support shaft, and operates one of the motors by operating an operation button (not shown) in the driver's seat, thereby driving the mirror holder 30 to rotate vertically and horizontally. Not only the half mirror M but also the board camera Ca, for example,
The direction can be changed to the outward angle indicated by the dotted line in FIG. The door mirror housing 20, that is, the entire rotation support device 40 is operated by operating an operation button (not shown) in a driver's seat to operate the door mirror housing driving device 50, as seen in a conventional vehicle. The door mirror housing 20 can be folded toward the vehicle body.

According to the vehicle door mirror device 10 having the above-described configuration, the board camera Ca can be rotated together with the rotation of the half mirror M, and the field of view of the board camera Ca can be moved. it can. Moreover, the board camera Ca can be hermetically sealed with an extremely simple structure, sufficient waterproof and dustproof measures can be taken, and assembly can be easily performed.

In the vehicle door mirror device according to the second embodiment of the present invention, since the board camera Ca is close to the mirror, the half mirror M is a normal mirror.
The mirror of the board camera Ca has a diameter of 3 to
If only the small area portion Sb of 6 mm (FIG. 1) is made transparent instead of a mirror surface, the field of view of the board camera Ca can be further secured and the board camera Ca can be more compared with the case of a half mirror.
, The transmittance of light with respect to light can be greatly improved, and a decrease in visibility at a time when the light is weak can be prevented.

[0020]

As is apparent from the above description, the vehicle door mirror device according to the present invention comprises: 1. The field of view of the board camera can be moved in conjunction with the movement of the mirror. 2. The visibility of the board camera can be improved. 3. Very high waterproof and dustproof effect can be achieved with a very simple structure. Numerous excellent effects are obtained, such as extremely easy assembly.

[Brief description of the drawings]

FIG. 1 is a front view of a vehicle door mirror device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a front view of a conventional door mirror device.

FIG. 4 is a cross-sectional view taken along line AA of FIG.

[Explanation of symbols]

10... Door mirror device for vehicle according to the embodiment of the present invention, 20
... door mirror housing, 21 ... opening of the door mirror housing, 30 ... mirror holder, 31 ... outer peripheral support of the mirror holder, 33 ... rotating fulcrum bearing, 40 ... rotating support device, 41 ... rotating supporting shaft, 42 ... Vertical support shaft,
50: door mirror housing driving device, Ca: board camera, M: half mirror or mirror

Claims (3)

[Claims] At least a mirror, a board camera,
In a vehicle door mirror device in which a mirror holder holding the mirror and the board camera is attached to an opening of a door mirror housing, the mirror holder includes an outer peripheral edge supporting the mirror and a mirror holder. A mounting portion formed to be recessed rearward from the opening is formed at a part of the outer peripheral portion. The mirror holder holding the mirror at the outer peripheral portion and fixing the board camera to the mounting portion is the mirror holder. A vehicle door mirror device mounted on an opening of a door mirror housing. 2. The vehicle door mirror device according to claim 1, wherein said mirror is constituted by a half mirror. 3. The mirror according to claim 1, wherein the mirror is formed of a normal mirror, and a minute area of the normal mirror facing the objective lens unit of the board camera is formed of transparent glass. Door mirror device for vehicles.