JPH0523302U - Automotive headlamp with built-in reflector position lamp - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a headlamp for an automobile with a movable reflector position lamp that can reliably prevent light leakage to the rear side of the reflector of the position lamp light source. A reflector 16 having a headlamp light source 14 inserted therein is tiltably provided in a lamp chamber space formed by a lamp body 10 and a front lens 12, and a position lamp inserted into the lamp body 10 is provided. In a vehicle headlamp with a built-in reflector movable position lamp, in which a light source 40 for a projector is disposed so as to project through the reflector 16, an opening end portion is provided at a position surrounding the light source 40 for a position lamp between the reflector 16 and the lamp body 10. A cylindrical light leakage prevention member 50, which is held in pressure contact with both of them, is interposed so as to prevent the light of the light source 40 from leaking to the back side of the reflector 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reflector-movable headlamp in which a reflector is tiltably provided in a lamp chamber space, and more particularly, to a vehicle headlamp with a movable reflector position lamp in which a position lamp is integrally incorporated in the lamp chamber. .

[0002]

[Prior Art]

 In this type of conventional headlamp, as shown in FIGS. 7 and 8, a reflector 3 having a bulb 4 inserted into a lamp chamber space formed by a lamp body 1 and a front lens 2 has an aiming mechanism ( The position lamp bulb 5, which is tiltably accommodated by a lamp (not shown) and is inserted into the lamp body 1, penetrates the reflector 3 and projects to the front of the reflector.

[0003]

[Problems to be solved by the invention]

However, since the reflector 3 has the through hole 3a for the position lamp, the light of the bulb 5 leaks from the hole 3a to the rear side of the reflector as shown by an arrow L ₁ in FIG. There is a problem that it is not preferable in light distribution, for example, it is emitted from the vicinity of the upper and lower side edge portions of the front lens 2 through a gap between the front lens 2 and the front lens 2 and becomes glare light for an oncoming vehicle.

Therefore, as shown in FIG. 9, it is conceivable to form shades 6 and 7 on 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 gap is generated between the shades 6 and 7, and the light leaks from the gap to the back side of the reflector as indicated by the arrow L ₂ in the same paragraph 9 and is not sufficient as a light shielding measure.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is an automobile with a movable reflector position lamp capable of surely preventing light leakage to the rear side of the reflector of the light source for the position lamp. The purpose is to provide headlamps for cars.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in a vehicle headlamp with a movable reflector position lamp according to the present invention, a light source for a headlamp is inserted in a lamp chamber space formed by a lamp body and a front lens. A reflector movable type position lamp integrated automobile headlamp in which a reflector is tiltably provided, and a light source for a position lamp inserted into a lamp body penetrates the reflector and is projected. The position between the lamp bodies is such that a stretchable tubular light leakage prevention member whose opening end is held in pressure contact with both is interposed at a position surrounding the light source for the lamp.

[0007]

[Action]

 Position between the reflector and the lamp body The cylindrical light leakage prevention member that is installed at the position surrounding the lamp light source is held in pressure contact with the reflector and the lamp body. Due to the elasticity, the pressure contact between the reflector and the lamp body and the light leakage prevention member is maintained, so the light emitted from the position lamp light source does not leak to the rear side of the reflector.

[0008]

【Example】

 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 which is an embodiment of the present invention, and FIG. 2 is a horizontal sectional view of the headlamp (shown in FIG. 1). 3 is a cross-sectional view taken along line II-II), FIG. 3 is an explanatory view for explaining a conventional method for fixing the globe for comparison with the method for fixing the globe in the present embodiment, and FIG. It is a perspective view of a member.

In these drawings, reference numeral 10 denotes a container-shaped lamp body, and a front lens 12 is attached to a front opening portion of the lamp body 10 to form a lamp chamber space. In the lamp chamber space, a parabolic reflector 16 in which a headlight bulb 14 is inserted is attached. The aiming consists of a ball joint 31 which is a swinging fulcrum, and three aiming screws 32 and 33. It is housed so as to be tiltable by a mechanism, and by rotating the aiming screws 32 and 33, the reflector 16 is tilted around the horizontal axis Lx and the vertical axis Ly, respectively, to adjust the optical axis L, that is, the head lamp. The irradiation direction can be adjusted. Reference numeral 17 is a valve insertion hole formed in the rear top portion of the reflector, reference numeral 18 is a spring member for fixing and holding the valve 14 in the valve insertion hole 17, and reference numeral 11 is for attaching and detaching the valve formed on the rear surface of the lamp body. The rubber cap 19 is attached to the opening.

At the right side position of the reflector 16, a position lamp bulb 40 inserted into the bulb insertion hole 10a of the lamp body 10 is arranged to project. The bulb 40 is inserted into the bulb insertion hole 10a of the lamp body 10 by bayonet engagement, penetrates a hole 42 formed in the reflector 16 and projects toward the front of the reflector. The hole 42 has a sufficient size so that the peripheral portion of the hole does not interfere with the bulb 40 even if the reflector 16 tilts due to the aiming adjustment. A yellow globe 44 surrounding the bulb 40 is attached to the peripheral portion of the hole 42, and the light emitted to the front of the reflector, that is, the light of the position lamp, becomes yellow. The outer peripheral surface 44a of the globe 44, which is the rear side of the reflector 16, is light-shielding coated so that light does not leak from the globe 44 to the rear side of the reflector. Reference numeral 43 is a boss projectingly formed on the reflector, and the flange portion 45 of the globe 44 is screwed to the boss 43. Further, as a conventional method for fixing the globe, as shown in FIG. 3, a concave portion 60 is formed on the reflection surface side (front side) of the reflector 16, and the flange portion of the globe is fixed to the concave portion 60 with a screw. , The screw fixing part is visible through the front lens and looks bad, the effective reflection surface of the reflector is small because the recess 60 is formed, and the reflected light at the screw fixing part is preferable for light distribution. Although there are problems such as not being present, the above-mentioned various problems are solved by the glove fixing method in this embodiment.

A cylindrical light leakage prevention member 50 that surrounds the outer periphery of the bulb 40 is interposed between the flange portion 45 of the globe 44 and the peripheral edge portion of the bulb insertion hole 10 a of the lamp body. As shown in the enlarged view of FIG. 4, the light leakage prevention member 50 has a bellows structure made of rubber, and its open end is held in pressure contact with both the lamp body 10 and the flange portion 45 of the globe 44. Therefore, even if the reflector 16 tilts at the time of aiming adjustment, the light leakage prevention member 50 follows the tilting of the reflector 16 and maintains the pressure contact state with the lamp body 10 and the flange portion 45 of the globe, so that the light of the bulb 40 is not emitted. The light leakage prevention member 50 surely blocks the light, and there is no problem that the light of the bulb 40 leaks to the front of the headlamp through the back side of the reflector 16. Reference numeral 46 is a hook projecting from the flange portion 45 of the globe, and engages with the hole 51 of the light leakage prevention member 50 to prevent the light leakage prevention member 50 from being displaced. Further, in order to secure the further positioning and fixing of the light leakage prevention member 50, the joint portion between the light leakage prevention member 50 and the lamp body (flange flange portion) may be fixed with an adhesive.

5 and 6 show another embodiment of the present invention. FIG. 5 is a cross-sectional view of the light leakage prevention member and its periphery, which is a main part of the embodiment, and FIG. It is a perspective view of the light leakage prevention member shown. In the above-described embodiment, the globe 44 is provided to make the light of the position lamp yellow, but in this embodiment, the globe is not provided. In addition, in the above-described embodiment, the light shielding member 50 has a bellows structure and can expand and contract, but the light leakage prevention member 52 in this embodiment has a cylindrical shape with a uniform thickness, but is made of sponge. It has a structure that allows it to expand and contract.

[0013]

[Effect of the device]

 As is clear from the above description, according to the vehicle headlamp with a movable reflector position lamp according to the present invention, there is a stretchable member disposed between the reflector and the lamp body at a position surrounding the light source for the position lamp. The light leakage prevention member reliably prevents the light from the position lamp light source from leaking to the back side of the reflector, so that the light from the position lamp light source becomes glare light or the headlamp distribution as in the prior art. Problems such as affecting the light are eliminated.

[Brief description of drawings]

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

FIG. 2 is a horizontal sectional view of the same headlamp (see line II in FIG. 1).
-Cross section along II)

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

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

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

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

FIG. 9 is a vertical cross-sectional view of a headlamp according to an improvement of the conventional headlamp.

[Explanation of symbols]

10 Lamp Body 12 Front Lens 14 Headlamp Bulb 16 Reflector 31 Ball Joint 32, 33 Aiming Screw Part of Aiming Mechanism 40 Position Lamp Bulb 42 Penetration Formed in Reflector Hole 50,52 Light leakage prevention member

Claims (1)

[Scope of utility model registration request] 1. A reflector in which a headlamp light source is inserted is tiltably provided in a lamp chamber space formed by a lamp body and a front lens, and a position lamp light source inserted in the lamp body is provided. In a headlamp for a vehicle with a movable reflector position lamp, which is arranged so as to project through the reflector, an expansion and contraction in which an opening end is pressed and held to a position surrounding the position lamp light source between the reflector and the lamp body. An automotive headlamp with a movable reflector position lamp, in which a flexible tubular light leakage prevention member is interposed.