JPH08315606A - Lighting fixture for vehicle - Google Patents

Abstract

PURPOSE: To form a lens made mountable/demountable relating to a lamp housing by a simple constitution. CONSTITUTION: Engaging pawls 31, 310 of removably mounting a lens 2 in a lamp housing 1 engaged mountably/demountably with it are integrally provided in a rim 3 of removably mounting the lens 2 in the lamp housing 1. As a result, when the engaging pawls 31, 310 of the rim 3 are engaged with the lamp housing 1, the lens 2 is removably mounted in the lamp housing 1 through the rim 3, and when the engaging pawls 31, 310 are removed from the lamp housing 1, the lens 2 can be removed from the lamp housing 1. Since a mounting mechanism of removably mounting the lens 2 in the lamp housing 1 comprises the rim 3 and the engaging pawls 31, 310 provided in the rim 3, a structure is simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp such as a headlamp or fog lamp, and in particular, a lens is attachable to and detachable from a lamp housing, and the structure of a detachable attachment mechanism of the lens is simple. Vehicle lighting fixtures.

[0002]

2. Description of the Related Art In general, a vehicular lamp includes a lamp housing having an opening, a lens attached to the opening of the lamp housing, and a lamp chamber defined by the lamp housing and the lens. And a light source bulb provided. In this vehicular lamp, when the light source bulb is turned on, the light from the light source bulb is emitted to the outside through a lens in a predetermined light distribution pattern.

[0003]

In the above vehicle lighting device, the lens may be damaged or broken due to scattering of small stones or the like. In addition, when used for many years, the inside of the lamp, such as the inner surface of the lens or the inner surface of the lamp housing, may become dirty.

In this case, in the above-described lamp, if the lens is attachable to and detachable from the lamp housing, the components of the lamp other than the lens can be recycled by replacing only the lens with a new one. Further, by removing the lens from the lamp housing, it is possible to remove dirt on the inner surface of the lens, the inner surface of the lamp housing, the lamp chamber, and the like.

An object of the present invention is to provide a vehicular lamp in which the lens can be attached to and detached from the lamp housing, and the mounting mechanism for attaching and detaching the lens has a simple structure.

[0006]

In order to achieve the above-mentioned object, the present invention is a rim in which a lens is detachably attached to a lamp housing, and the rim is detachably engaged with the lamp housing. Is integrally provided with an engaging claw for detachably attaching the lamp to the lamp housing.

[0007]

According to the present invention, when the engaging claws of the rim are engaged with the lamp housing, the lens can be removably attached to the lamp housing through the rims, and the engaging claws can be attached to the lamp housing. Once removed, the lens can be removed from the lamp housing. Moreover, since the mounting mechanism that detachably mounts the lens to the lamp housing is composed of the rim and the engaging claws provided on the rim, the structure is simple.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Two of the embodiments of the vehicular lamp of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of a vehicular lamp according to the present invention.

In the figure, 1 is a lamp housing. The lamp housing 1 is provided with an opening 10 on the front surface, and a seal recess 11 is provided on the entire peripheral edge of the front opening 10.

The front opening 10 of the lamp housing 1
A lens 2 is detachably attached to the lens via a rim 3 described later. The seal leg portion 20 of the lens 2 is sealed in the seal recess portion 11 of the lamp housing 1 by, for example, hot melt or packing 12. A convex portion 21 is integrally formed on the outer side of the seal leg portion 20 of the lens 2, and the convex portion 21 is brought into contact with an outer edge of the seal concave portion 11 of the lamp housing 1 by a rim 3 described later. There is.

A lamp chamber 13 is defined by the lens 2 and the lamp housing 1. A reflector 14 is provided in the lamp chamber 13, and a reflecting surface 15 is provided on the inner surface (the surface facing the lens 2) side of the reflector 14. A light source bulb 16 is provided inside the lamp chamber 13 on the reflection surface 15 side of the reflector 14.

The rim 3 to which the lens 2 is detachably attached to the lamp housing 1 has a square shape when viewed from the front, as shown in FIG. The rim 3 is attached to the outer edge of the seal recess 11 on the lower side of the lamp housing 1 at two locations on the lower side so as to be openable and closable by two hinges 30.

Plate-shaped engaging claws 31 are integrally provided at two locations on the upper side of the rim 3 opposite to the hinge 30. A holding portion 32 as a fulcrum which is swingably held by the rim 3 is provided at the center of the engaging claw 31, and one end of the engaging claw 31 is provided on the outer surface of the seal recess 11 of the lamp housing 1. An engaging portion 33 as an action point to be engaged,
On the other end of the engaging claw 31, that is, on the side opposite to the engaging portion 33 with the holding portion 32 interposed, a pushing operation portion 34 as a force point is provided.

The vehicular lamp of the present invention in this embodiment has the above-mentioned structure, and the attachment / detachment of the lens 2 will be described below. First, when the lens 2 is attached to the lamp housing 1, the lens 2 is set in the rim 3 with the rim 3 opened from the lamp housing 1, and the rim 3 is closed around the hinge 30 to remove the rim 3 from the rim 3. The engaging portion 33 of the engaging claw 31 is engaged with the outer surface of the seal recess 11 of the lamp housing 1. Then, the seal leg portion 20 of the lens 2
Is sealed in the seal recess 11 of the lamp housing 1 via hot melt, packing 12, etc., and the projection 21 of the lens 2 is sealed by the seal recess 1 of the lamp housing 1.
It is sandwiched between the outer edge of 1 and the rim 3, and the lens 2 is detachably attached to the lamp housing 1 via the rim 3.

Next, when the lens 2 is detached from the lamp housing 1, the pushing operation portion 34 of the engaging claw 31 of the rim 3 is pushed.
Is pushed in the direction of arrow A in FIG. Then, the push operation unit 34
With the holding point 32 of the engaging claw 31 as the fulcrum, the engaging portion 33, which is the point of action, moves in the direction of arrow B on the principle of leverage, and the engaging concave portion of the seal recess 11 of the lamp housing 1 The engagement state with the outer side surface is released. In this state, the lens 2 is removed from the lamp housing 1 by opening the rim 3 and the lens 2 around the hinge 30. The lens 2 can also be removed from the rim 3.

As described above, in the vehicular lamp of the present invention in this embodiment, since the lens 2 can be attached to and detached from the lamp housing 1, if the lens 2 is damaged or damaged, it can be replaced with a new one. Components other than the lens 2, such as the lamp housing 1, the rim 3, the reflector 14, and the light source bulb 16, can be recycled. Also, 2 of the lens
It is possible to remove dirt on the inner surface, the inner surface of the lamp housing 1, the inner surface of the reflector 14, the lamp chamber, and the like. Moreover, since the mounting mechanism for removably mounting the lens 2 on the lamp housing 1 comprises the rim 3 and the engaging claws 31 provided on the rim 3, the structure is simple.

FIG. 5 to FIG. 7 are the second parts of the vehicular lamp according to the present invention.
An example of is shown. This embodiment shows a modification of the engaging claw 310. That is, the engaging claw 310 has a substantially block shape. A holding portion 320 as a fulcrum which is swingably held by the rim 3 is provided at one end of the engaging claw 310, and the lamp housing 1 is provided at the other end of the engaging claw 310.
The engaging portion 330 as an action point that engages with the outer surface of the seal concave portion 11 and the locking portion as a force point near the engaging portion 330 at the other end of the engaging claw 310, in this example. A locking hole 340 is provided.

The vehicular lamp of the present invention in this embodiment has the above-mentioned structure, and the method for removing the lens 2 will be described below. Since the method of mounting the lens 2 is almost the same as that of the first embodiment, the description thereof will be omitted. First, attach the tool 4 such as a flat-blade screwdriver to the locking hole 34.
0 is inserted and locked, and the tool 4 is operated in the direction of arrow C in FIG. 7 in this state. Then, with the locking hole 340 as the force point and the holding portion 320 as the fulcrum, the engaging portion 330, which is the point of action, moves in the direction of arrow D on the principle of leverage, and the engaging portion 3
The engagement state of 30 with the outer side surface of the seal recess 11 of the lamp housing 1 is released, and the lens 2 is detached from the lamp housing 1.

[0019]

As is apparent from the above, in the vehicular lamp of the present invention, the lens is attachable to and detachable from the lamp housing, and the structure of the attachment / detachment attachment mechanism of the lens is simple.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of a vehicular lamp of the present invention.

FIG. 2 is a plan view of the same.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a partially enlarged cross-sectional view showing a released state of an engaging claw.

FIG. 5 is a plan view showing a second embodiment of the vehicular lamp of the present invention.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a partially enlarged cross-sectional view showing a released state of the engagement claw.

[Explanation of symbols]

1 ... Lamp Lamp housing, 10 ... Front opening, 11
… Seal recess, 12… Hot melt, packing, etc., 1
3 ... Lamp room, 16 ... Light source bulb, 2 ... Lens, 20 ... Seal leg part, 21 ... Convex part, 3 ... Rim, 30 ... Hinge, 31,
310 ... Engaging claws, 32, 320 ... Holding part (fulcrum), 3
3, 330 ... Engaging portion (point of action), 34 ... Push operation portion (power point), 340 ... Locking hole (locking portion (power point)), 4 ... Tool.

Claims (4)

[Claims] 1. A lamp housing having an opening, a lens removably attached to the opening of the lamp housing via a rim, and a lamp chamber defined by the lamp housing and the lens. In a vehicular lamp including a provided light source bulb, an engaging claw that is detachably engaged with the lamp housing and detachably attaches the lens to the lamp housing is integrally provided on the rim. A vehicular lamp characterized in that 2. The vehicle lighting device according to claim 1,
The rim is openably and closably attached to the lamp housing at a portion substantially opposite to the engaging claw, and the lens is configured so that the engaging claw of the rim is detachably engaged with the lamp housing. The vehicular lamp according to claim 1, wherein the vehicular lamp is detachably attached to the lamp housing via the rim. 3. The vehicular lamp according to claim 1, wherein the engagement claw is swingably held on the rim and a point of action of an engagement portion that removably engages with the lamp housing. Using the principle of the lever, which comprises a fulcrum of the holding portion and a force point of the pushing operation portion provided on the opposite side of the fulcrum from the engaging portion, the engagement of the engaging claw with the lamp housing is performed. 2. The combined state is released.
Or the vehicle lamp according to 2. 4. The vehicle lamp according to claim 1, wherein the engaging claw is provided with a locking portion in the vicinity of an engaging portion that is detachably engaged with the lamp housing, The vehicular lamp according to claim 1 or 2, wherein the engagement state of the engagement claw with the lamp housing is released by using a tool retained by the engagement portion.