JP2011084184A - Door mirror for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent light leakage from a door mirror without using an independent exclusive component. <P>SOLUTION: In the door mirror for the vehicle 1, a mirror 3 is installed so as to tilt at an opening 6 side of a cup-shaped mirror housing 2, a lamp unit 5 is installed inside of the mirror housing 2, and light irradiated from the lamp unit 5 can be irradiated on a road surface through a through-hole 9 provided at a bottom wall part 8 of the mirror housing 2. The lamp unit 5 includes: a valve 10; a shading lamp housing 12; and a lamp lens 13 for blocking an irradiation opening 14 of the lamp housing 12. At the bottom wall part 8 of the mirror housing 2, a stepped light leakage prevention cover part 18 is formed which is recessed inside of the mirror housing 2 and has a diameter shrink so as to surround the through-hole 9. A peripheral wall of the irradiation opening 14 and the lamp lens 13 are stored in the through-hole 9, and the peripheral wall of the irradiation opening 14 and the outer peripheral part of the lamp lens 13 are covered by the leakage prevention cover part 18. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle door mirror incorporating a lamp unit that illuminates a road surface in the vicinity of a vehicle door.

  In this type of vehicle door mirror, a lamp unit including a light source is installed inside a mirror housing, and light irradiated from the lamp unit is irradiated onto a road surface through a through hole provided in a bottom wall portion of the mirror housing. ing. The lamp unit includes a lamp housing disposed so as to surround the front side of the light source, and a lens made of transparent glass or the like disposed so as to close the front end of the lamp housing, and the lens is fitted into the through hole. Yes.

  By the way, the door mirror for vehicles is generally provided with an angle adjusting mechanism so that the angle of the mirror can be adjusted. In order to allow the mirror to tilt, the inner surface of the mirror housing and the outer peripheral surface of the mirror There is a gap between them.

  In the vehicle door mirror incorporating the lamp unit, if the light emitted from the lamp unit leaks into the mirror housing, the light leaks from the gap between the mirror housing and the mirror, resulting in poor appearance. Therefore, the light leakage prevention structure is adopted so that the light emitted from the lamp unit is emitted only from the through hole, in other words, the light emitted from the lamp unit does not leak into the mirror housing.

  As a conventional light leakage prevention structure, a member having a shielding function is added to a portion where light leakage is assumed, or a waterproof packing disposed around the through-hole is commonly used as a light leakage prevention member. (For example, refer to Patent Document 1).

JP 2002-96682 A

However, in the conventional light leakage prevention structure, since a member dedicated to light leakage prevention is prepared separately, there is a problem that the number of parts increases and the number of assembling steps increases, resulting in an increase in cost.
Accordingly, the present invention provides a vehicle door mirror that can take measures against light leakage without using an independent dedicated component and can reduce the cost.

The vehicle door mirror according to the present invention employs the following means in order to solve the above problems.
According to the first aspect of the present invention, a mirror is tiltably installed on the opening side of a cup-shaped mirror housing having an opening at the rear, a lamp unit is installed inside the mirror housing, and light emitted from the lamp unit In a vehicle door mirror that can irradiate the road surface through a through-hole provided in the bottom wall portion of the mirror housing, wherein the lamp unit has a light source and a light shielding property that regulates an irradiation direction of the light source. And a translucent lamp lens that closes the irradiation opening of the lamp housing, and the bottom wall portion of the mirror housing is recessed inside the mirror housing so as to surround the through hole. A stepped light leakage prevention cover portion having a reduced diameter is formed, and the peripheral wall of the irradiation port of the lamp housing and the lamp lens are accommodated in the through hole. It is a vehicle door mirror, wherein the outer peripheral portion of the peripheral wall and the lamp lens of the irradiation port is covered by the light leakage prevention cover portion.
With this configuration, light leakage from the lamp unit into the mirror housing can be prevented without using a separate component dedicated to light leakage prevention.

According to the first aspect of the present invention, light leakage from the lamp unit into the mirror housing can be prevented, so that light does not leak from other than the through hole in the bottom wall portion of the mirror housing, and the lamp unit is turned on. The appearance of the door mirror is improved.
Further, since light leakage from the lamp unit into the mirror housing can be prevented without using a separate component dedicated to light leakage prevention, the number of components can be reduced and the number of assembling steps can also be reduced. As a result, the cost of the vehicle door mirror with a built-in lamp unit can be reduced.

It is a front view of the door mirror for vehicles in an embodiment of this invention. It is a bottom view of the vehicle door mirror. It is AA sectional drawing of FIG. It is a principal part enlarged view of FIG. It is BB sectional drawing of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a vehicle door mirror according to the present invention will be described with reference to the drawings of FIGS. In the following description, the front-rear direction corresponds to the front-rear direction of the vehicle body unless otherwise specified.

  FIG. 1 is a front view of a door mirror 1 attached to a door (not shown) on the left side of a front seat of an automobile (vehicle). The door mirror 1 is installed so that it can be opened and closed in the vehicle width direction with respect to the arm portion 50a of the door mirror stay 50 fixed to the door, and by operating a switch (not shown) in the vicinity of the driver's seat in the passenger compartment. Alternatively, by operating a portable remote control switch (not shown), the door mirror 1 is rotated and stored in the direction approaching the door (closed direction), or is rotated in the direction away from the door (open direction). And can be used in such a way that it can be viewed backwards.

As shown in FIGS. 3 and 5, the door mirror 1 includes a mirror housing 2, a mirror 3, a mirror surface adjustment unit 4 that supports the mirror 3 in a tiltable manner, a lamp unit 5, and an arm portion 50 a of the door mirror stay 50. The bracket 20 is rotatably supported on the mirror 20, and the mirror surface adjustment unit 4 and the mirror housing 2 are attached to the bracket 20.
The mirror housing 2 is made of a light-shielding resin and has a cup shape with an opening at the rear. The mirror 3 is disposed in the mirror housing 2 at a position close to the opening 6. The mirror 3 is supported by a mirror holder 7, and the mirror holder 7 is configured to be tilted by the mirror surface adjustment unit 4.

The mirror surface adjustment unit 4 includes a pair of electric actuators (not shown) for tilting the mirror 3 supported by the mirror holder 7 in the vertical direction and the front-rear direction with respect to the mirror housing 2. By operating a switch (not shown) in the vicinity of the driver's seat, the mirror 3 can be adjusted to a desired angle. Since the configuration of the mirror surface adjustment unit 4 is the same as that generally used conventionally, detailed description thereof is omitted.
As shown in FIG. 3, a gap is provided between the outer surface of the mirror holder 7 and the inner surface of the mirror housing 2 so that the mirror housing 2 and the mirror holder 7 do not interfere when the mirror 3 is tilted in this way. Yes.

Further, a lamp unit 5 is installed inside the mirror housing 2 so as not to interfere with the mirror surface adjustment unit 4 at a portion adjacent to the arm portion 50a of the door mirror stay 50.
More specifically, the mirror housing 2 includes a flat bottom wall portion 8, and one end of the bottom wall portion 8 is disposed adjacent to the arm portion 50 a of the door mirror stay 50 as shown in FIG. 2. A portion of the bottom wall portion 8 adjacent to the arm portion 50 a is formed with a through hole 9 having a substantially rectangular shape in plan view, and a part of the lamp unit 5 is fitted into the through hole 9. Accordingly, it can be said that the lamp unit 5 is disposed on the bottom wall portion 8 of the mirror housing 2. As shown in FIG. 3, the lamp unit 5 is disposed on the back side of the mirror housing 2 with respect to the mirror 3 and below the mirror surface adjustment unit 4.

The lamp unit 5 includes a bulb 10 as a light source, a bulb socket 11, a lamp housing 12, and a lamp lens 13.
The valve socket 11 holds the valve 10 and supplies electricity to the valve 10.
The lamp housing 12 supports the bulb socket 11 and regulates the irradiation direction of the light emitted from the bulb 10. The lamp housing 12 is made of resin, and has a shape and size that surrounds the entire bulb 10 as shown in FIGS. The irradiation port 14 has a substantially rectangular shape corresponding to the through hole 9. The bulb socket 11 passes through the lamp housing 12 in an obliquely downward posture from the front to the rear of the mirror housing 2 and is fixed to the lamp housing 12. The entire inner surface of the lamp housing 12 is formed as a mirror surface, and reflects the light irradiated from the bulb 10 and guides it to the irradiation port 14. That is, the lamp housing 12 has a function of restricting the irradiation direction of the light emitted from the bulb 10 and a light shielding function (light shielding property) for blocking the transmission of the light emitted from the bulb 10 into the mirror housing 2. Have.
At the end of the lamp housing 12 on the irradiation port 14 side, a flat flange portion (a peripheral wall of the irradiation port 14) 15 that protrudes outward is formed over the entire circumference.

  A lamp lens 13 is attached to the front surface of the flange portion 15 of the lamp housing 12 so as to close the irradiation port 14 of the lamp housing 12. The lamp lens 13 is formed of a transparent resin, and includes a flat plate-like main body portion 16 having a substantially rectangular shape corresponding to the through hole 9 and an edge portion 17 standing from the outer periphery of the main body portion 16. Yes. The lamp lens 13 and the flange portion 15 have the same outer peripheral shape and outer peripheral dimensions in plan view. The lamp lens 13 is attached with the upper end of the edge portion 17 abutting against the flange portion 15 of the lamp housing 12, and the outer peripheral surface of the edge portion 17 and the outer peripheral surface of the flange portion 15 are flush with each other.

On the other hand, as shown in FIG. 4, the bottom wall portion 8 of the mirror housing 2 is provided with a stepped portion having an inverted L-shaped cross section that is reduced in diameter after being recessed inside the mirror housing 2 so as to surround the through hole 9. Is formed. This step portion constitutes a light leakage prevention cover portion (hereinafter abbreviated as a cover portion) 18.
The flange portion 15 of the lamp housing 12 and the lamp lens 13 are received and fixed in the through hole 9 of the mirror housing 2, and the outer peripheral portion of the lamp lens 13 and the outer peripheral portion of the flange portion 15 of the lamp housing 12 are the mirror housing 2. The cover portion 18 is covered with no gap. Further, the outer bottom surface of the main body portion 16 of the lamp lens 13 is flush with the outer surface of the bottom wall portion 8 of the mirror housing 2.

  In the door mirror 1 configured as described above, when the bulb 10 is turned on, the light emitted from the bulb 10 is reflected directly or on the inner surface of the lamp housing 12 and travels toward the irradiation port 14 of the lamp housing 12, and the lamp lens. 13 is transmitted to the road surface near the door of the vehicle.

  Here, since the lamp housing 12 has a light shielding property as described above, the light irradiated from the bulb 10 does not pass through the lamp housing 12 and leak into the mirror housing 2. Further, the outer peripheral portion of the lamp lens 13 and the outer peripheral portion of the flange portion 15 of the lamp housing 12 are covered without a gap by the cover portion 18 of the bottom wall portion 8 of the mirror housing 2, and the mirror housing 2 has a light shielding property. Therefore, the cover portion 18 prevents light from leaking into the mirror housing 2 from the outer peripheral portion of the lamp lens 13 or the outer peripheral portion of the flange portion 15.

Therefore, the light from the bulb 10 does not leak into the mirror housing 2, so that the light does not leak from the gap between the mirror housing 2 and the mirror holder 7. That is, the light of the bulb 10 does not leak from other than the through hole 9 of the bottom wall portion 8 of the mirror housing 2, and the appearance of the door mirror 1 when the bulb 10 is turned on is improved.
Further, since light leakage from the lamp unit 5 into the mirror housing 2 can be prevented without using a separate component dedicated to light leakage prevention, the number of components can be reduced and the number of assembly steps can be reduced. it can. As a result, the cost of the door mirror 1 incorporating the lamp unit 5 can be reduced.

[Other Examples]
The present invention is not limited to the embodiment described above.
For example, the light source of the lamp unit 5 is not limited to the bulb 10 and may be constituted by an LED. Further, the lamp lens 16 may not have the edge portion 17. The inner surface of the lamp housing 12 may not be a mirror surface.

DESCRIPTION OF SYMBOLS 1 Vehicle door mirror 2 Mirror housing 3 Mirror 4 Mirror surface adjustment unit 5 Lamp unit 6 Opening 8 Bottom wall part 9 Through-hole 10 Bulb (light source)
12 Lamp housing 13 Lamp lens 14 Irradiation port 15 Flange (periphery wall of the irradiation port)
18 Light leakage prevention cover

Claims (1)

A mirror is tiltably installed on the opening side of a cup-shaped mirror housing having an opening at the back, a lamp unit is installed inside the mirror housing, and light irradiated from the lamp unit In the vehicle door mirror that can irradiate the road surface through a through hole provided in the section,
The lamp unit includes a light source, a light-shielding lamp housing that regulates an irradiation direction of the light source, and a light-transmitting lamp lens that blocks an irradiation port of the lamp housing,
The bottom wall portion of the mirror housing is formed with a stepped light leakage prevention cover portion that is recessed inside the mirror housing and has a reduced diameter so as to surround the through hole, and the irradiation of the lamp housing. A vehicle door mirror characterized in that a peripheral wall of the mouth and the lamp lens are accommodated in the through hole, and an outer peripheral portion of the peripheral wall of the irradiation port and the lamp lens is covered with the light leakage prevention cover portion.

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