JP2524855Y2 - Automotive headlamp with built-in reflector movable position lamp - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflector movable headlamp in which a reflector is tiltably provided in a lamp room space, and more particularly to a reflector movable type position lamp in which a position lamp is integrally incorporated in a lamp room. The present invention relates to an automobile headlamp.

[0002]

2. Description of the Related Art Conventional headlamps of this type include:
As shown in FIGS. 7 and 8, a reflector 3 having a bulb 4 inserted therein is accommodated in a lamp room space formed by a lamp body 1 and a front lens 2 so as to be tiltable by an aiming mechanism (not shown). In this structure, a position lamp bulb 5 inserted into the lamp body 1 penetrates through the reflector 3 and projects to the front of the reflector.

[0003]

A problem you try to devise However, since the reflector 3 are formed position lamp through holes 3a, the reflector rear side from the hole 3a such that light bulb 5 is shown in Figure 7 arrow L ₁ Leaks out from the vicinity of the upper and lower side edges of the front lens 2 from the gap between the lamp body 1 and the reflector 3 and becomes unfavorable in light distribution, such as glare light for oncoming vehicles. .

Therefore, as shown in FIG. 9, it is conceivable to form shades 6 and 7 around the reflector 3 and the lamp body 1 so as to surround the bulb 5, but when the reflector 3 is tilted by aiming adjustment. , a large clearance occurs between the shade 6 and 7 as shown in the 9 arrow L _2, light from the ski is a leak in the reflector rear side, not sufficient as a light-shielding measures.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object the purpose of a vehicle with a built-in reflector movable type position lamp capable of reliably preventing the light source for a position lamp from leaking to the rear side of the reflector. It is to provide a headlamp.

[0006]

In order to achieve the above object, a headlamp for a vehicle with a built-in reflector movable position lamp according to the present invention has a head space in a lamp room space formed by a lamp body and a front lens. A reflector with a lamp light source inserted therein is provided to be tiltable, and a reflector movable position lamp integrated vehicle head in which a light source for a position lamp inserted into a lamp body is arranged to protrude through the reflector. In the lamp, a position between the reflector and the lamp body at a position surrounding the lamp light source,
The opening end is provided with an elastic tubular light leakage prevention member which is pressed and held to both sides.

[0007]

[Function] Position between the reflector and the lamp body The cylindrical light leakage prevention member interposed at the position surrounding the lamp light source is held in pressure contact with the reflector and the lamp body, and also prevents light leakage by tilting the reflector. Because the elasticity of the member keeps the pressed state between the reflector and the lamp body and the light leakage prevention member,
Light emitted from the position lamp light source does not leak to the rear side of the reflector.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of a vehicle headlamp according to an embodiment of the present invention, and FIG. 2 is a horizontal sectional view of the headlamp (shown in FIG. 1). line
FIG. 3 is an explanatory view for explaining a conventional glove fixing method for comparison with the glove fixing method of the present embodiment, and FIG. 4 is a partially cutaway light leakage preventing member. It is a perspective view.

In these figures, reference numeral 10 denotes a container-shaped lamp body, and a front lens 12 is attached to a front opening of the lamp body 10 to form a lamp room space. In the lamp room space, a parabolic reflector 16 into which a headlamp bulb 14 is inserted is provided with a ball joint 31 serving as a swing fulcrum and two aiming screws 32, 33.
The reflector 16 is tiltably housed by an aiming mechanism composed of three members.
The optical axis L, that is, the irradiation direction of the headlamp can be adjusted by tilting around the x and vertical axes Ly. Reference numeral 17 denotes a valve insertion hole formed in the rear top portion of the reflector, reference numeral 18 denotes a spring member for fixing and holding the bulb 14 in the valve insertion hole 17, and reference numeral 11 denotes a valve mounting / dismounting hole formed on the rear surface of the lamp body. At the opening, a rubber cap 19 is mounted.

At a position on the right side of the reflector 16, a bulb 40 for a position lamp, which is inserted into a bulb insertion hole 10a of the lamp body 10, protrudes. The bulb 40 is inserted into the bulb insertion hole 10a of the lamp body 10 by bayonet engagement, and penetrates a hole 42 formed in the reflector 16 to protrude forward of the reflector. The hole 42 is provided in the reflector 16 by the aiming adjustment.
The hole is made sufficiently large so that the peripheral edge of the hole does not interfere with the valve 40 even if the valve tilts. A yellow globe 44 surrounding the bulb 40 is attached to the periphery of the hole 42, and the light emitted in front of the reflector, that is, the light of the position lamp becomes yellow. The outer peripheral surface 44a of the globe 44 on the back side of the reflector 16 is coated with a light-shielding coating so that light does not leak from the globe 44 to the back side of the reflector. Reference numeral 43 denotes a boss protruding from the reflector, and a flange portion 45 of the globe 44 is screwed to the boss 43. As a conventional glove fixing method, as shown in FIG. 3, a concave portion 60 is formed on the reflection surface side (front side) of the reflector 16, and a flange portion of the glove is screw-fixed to the concave portion 60. The screw fixing part is seen through the front lens to be seen through the front lens, and the appearance is poor. Although there was a problem, the glove fixing method according to the present embodiment has solved the various problems described above.

A bulb 4 is provided between the flange 45 of the globe 44 and the periphery of the bulb insertion hole 10a of the lamp body.
A cylindrical light leakage prevention member 50 that surrounds the outer periphery of 0 is interposed. The light leakage prevention member 50 has a bellows structure made of rubber, as shown in an enlarged view in FIG. 4, and its open end is held in pressure contact with both the lamp body 10 and the flange 45 of the globe 44. Therefore, even if the reflector 16 is tilted during the aiming adjustment, the light leakage prevention member 50 follows the tilt of the reflector 16 and causes the lamp body 1 to tilt.
0 and the glove flange 45 is kept in pressure contact, so that the light of the bulb 40 is reliably blocked by the light leakage prevention member 50, and the light of the bulb 40 leaks to the front of the headlamp through the back side of the reflector 16. Absent. Reference numeral 46 denotes a hook protruding from the flange portion 45 of the glove, which is engaged with the hole 51 of the light leakage prevention member 50 to prevent the light leakage prevention member 50 from being displaced. Light leakage prevention member 5
In order to secure the further positioning and fixing of 0, the joint between the light leakage preventing member 50 and the lamp body (flange portion of the globe) may be fixed with an adhesive.

FIGS. 5 and 6 show another embodiment of the present invention. FIG. 5 is a cross-sectional view around a light leakage preventing member which is a main part of the embodiment, and FIG. It is a perspective view of the shown light leakage prevention member. In the above embodiment, the globe 44 is provided to make the light of the position lamp yellow, but in this embodiment, the globe is not provided. Further, in the above-described embodiment, the light shielding member 50 has a bellows structure and can be expanded and contracted.
Has a cylindrical shape with a uniform thickness as a whole, but has a structure made of sponge and capable of expanding and contracting.

[0013]

As is apparent from the above description, according to the vehicle headlamp incorporating the reflector movable type position lamp according to the present invention, the headlamp is interposed between the reflector and the lamp body at a position surrounding the position lamp light source. Since the light from the position lamp light source is reliably prevented from leaking to the back side of the reflector by the elastic light leakage prevention member, the light from the position lamp light source becomes glare light as in the related art, Problems such as affecting the light distribution of the lamp are eliminated.

[Brief description of the drawings]

FIG. 1 is a front view of a vehicle headlamp incorporating a reflector movable position lamp according to an embodiment of the present invention;

FIG. 2 is a horizontal sectional view of the headlamp (the line II shown in FIG. 1).
Sectional view along -II)

FIG. 3 is an explanatory view illustrating a conventional glove fixing method.

FIG. 4 is a perspective view of a light leakage prevention member which is a main part of the embodiment.

FIG. 5 is a cross-sectional view around a light leakage prevention member, which is a main part of a second embodiment of the present invention.

FIG. 6 is a perspective view of a light leakage prevention member as a main part in a second embodiment.

FIG. 7 is a front view of a conventional headlamp.

FIG. 8 is a longitudinal sectional view of the headlamp.

FIG. 9 is a longitudinal sectional view of a headlamp according to an improvement of a conventional headlamp.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Lamp body 12 Front lens 14 Headlamp bulb 16 Reflector 31 Ball joint which comprises a part of aiming mechanism 32, 33 Aiming screw which constitutes a part of aiming mechanism 40 Position lamp bulb 42 Penetration formed in reflector Hole 50, 52 Light leakage prevention member

Claims (1)

(57) [Scope of request for utility model registration] A reflector having a headlamp light source inserted therein is tiltably provided in a lamp room space formed by a lamp body and a front lens, and a position lamp light source inserted into the lamp body is provided. In a vehicle headlamp with a built-in reflector movable position lamp protruding and arranged through the reflector, a telescopic member having an open end pressed and held at both positions surrounding the light source for the position lamp between the reflector and the lamp body. An automotive headlamp with a built-in reflector movable position lamp, wherein a flexible tubular light leakage preventing member is interposed.