JPH1074405A - Vehicle lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle lighting fixture capable of not only ensuring light weight and wide engaging width, but also improving versatility to a lighting fixture shape, etc., and moreover ensuring wide engaging width and preventing the deformation of the lighting fixture due to the engagement, coupled with. SOLUTION: A front surface opening 11a is formed by the peripheral wall 11b of a lamp housing 11, and a lens engaging groove 11c, opened to the opened end side of the opening 11a, is formed with the cooperation of the peripheral wall 11b by a rib 11d having a substantially L-shaped cross section formed along the edge part of the peripheral wall 11b. A leg part 12a, for engaging with the lens engaging groove 11c, is formed on a lens 12 for closing the opening 11a, and engaging projections 11e and 12b, extending in directions receding with each other to the rib 11d and the leg part 12a, are formed respectively, thereby engaging a connection member 13 composed of a wire rod alternately with the respective engaging projections 11e and 12b in a condition where the lens 12 is mounted on the lamp housing 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp, and more particularly, to a vehicular lamp provided with a fastening member that straddles a lamp housing and a lens and connects the two.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIGS.
b, a rib 1d having a substantially L-shaped cross section is formed along the edge of the peripheral wall 1b so as to form a lens engaging groove 1c that opens to the open end side of the front opening 1a in cooperation with the peripheral wall 1b. The lens 2 that closes the front opening 1a is formed with a leg 2a that engages with the lens engaging groove 1c, and the rib 1d and the leg 2a are engaged with each other by engaging protrusions 1e and 2 that extend away from each other.
b is formed, and the lens 2
The vehicle lamp 4 having the plate-shaped clip 3 for fastening the lamp housing 1 and the lens 2 is mounted by engaging with the engaging projections 1e and 2b across a plurality of locations in a state where the mounting is mounted. Have been.

[0003]

The clip 3 used in the vehicular lamp 4 having the above-described structure is formed by processing a plate-like metal so as to have a predetermined width. There is a problem that the weight is large and the fastening width (range) is narrow.

Further, since the clip 3 has a certain width, for example, the peripheral shape of the clip 3 has a curved shape with respect to a vehicular lamp 4 taking into account the recent design as shown in FIG. There are restrictions such as mounting on the corner R is impossible. The corner portion R is formed by the lens 2 straddling from the front to the rear of the vehicle body in consideration of the above-described design.

In addition, as shown in FIGS. 5A and 5B, when a required sealing length L is required between the rib 1d of the lamp housing 1 and the engagement projection 2b of the lens 2, the clip 3 Because the rigidity becomes quite strong,
A local load is generated, so that the engagement protrusion 2b is easily deformed such as being displaced toward the rib 1d, and there is also a problem that it is difficult to maintain a required seal size in the seal engagement groove 1c.

The present invention has been made in view of the above circumstances, and is not only lightweight and can secure a wide fastening width, but also can improve versatility with respect to the shape of a lamp and the like, and furthermore, the fastening width can be improved. It is an object of the present invention to provide a vehicle lamp capable of preventing deformation of the lamp due to fastening together with the fact that the lamp can be widely secured.

[0007]

According to a first aspect of the present invention, there is provided a lens housing having a lamp housing having a front opening formed by a peripheral wall and opening at an open end of the front opening. A rib having a substantially L-shaped cross section along an edge of the peripheral wall so as to form a joint with the peripheral wall, and a leg that engages with the lens engaging groove on a lens that closes the front opening. Are formed, and the ribs and the leg portions are respectively formed with engaging projections extending in directions away from each other. A fastening member made of a wire rod with the lens mounted on the lamp housing is provided with each of the engaging protrusions. The gist is that they are alternately engaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a vehicular lamp according to the present invention will be described with reference to the drawings.

1A and 1B, a vehicular lamp 10 includes a lamp housing 1 having a front opening 11a.
1, a lens 12 for closing the front opening 11a, and a fastening member 13 extending over the lamp housing 11 and the lens 12.

The lamp housing 11 has a peripheral wall 11b.
Forms a front opening 11a. A rib 11d having a substantially L-shaped cross section is formed from the outer wall surface of the peripheral wall 11b so as to form a lens engaging groove 11c opening on the open end side of the front opening 11a in cooperation with the peripheral wall 11b.
b is formed along the periphery. Further, the rib 11d has an engagement protrusion 11 protruding in a direction opposite to the tip thereof.
e is formed over substantially the entire circumference of the open end. The lens engaging groove 11c is filled with a sealing material 14 such as a hot melt material.

The lens 12 has a leg 12a which engages with the lens engaging groove 11a when closing the front opening 11a. Also, this leg 12a is attached to the outer wall surface of the leg 12a.
An engagement protrusion 12b having a substantially L-shaped cross section is formed so as to have a tip opposite to the protruding direction of a. Therefore, when the lens 12 is mounted on the lamp housing 11, the engaging protrusions 11e and the engaging protrusions 12b extend in directions opposite to each other. At this time, the engaging projections 11e and 12b are set so as to be located on the same plane at the portions facing each other.

As shown in FIG. 2, the fastening member 13 is formed by bending a metal wire such as a wire, and includes an engaging portion 13a which engages with the engaging protrusion 11e, and an engaging protrusion 12b. It is provided with an engaging portion 13b to be engaged and a continuous portion 13c continuous with each of the engaging portions 13a and 13b, and has elasticity and continuity because it is a bending process using a wire.

In the above configuration, the lens engaging groove 11c
After the sealing member 14 is provided, the leg 12a is engaged with the lens engaging groove 11c to hold the lens 12 in the lamp housing 11, and at the same time, the front opening 11a is
To close.

Next, the fastening member 13 is connected to the lamp housing 1.
The lamp housing 11 and the lens 12 are fastened by being engaged so as to straddle the lens 12 and the lens 12.

At this time, the engaging portions 13a and 13b are alternately and staggeredly engaged with the engaging protrusions 11e and 12b.

Therefore, since the fastening member 13 is formed by bending a wire, it is not only lightweight, but also can fasten a portion such as a conventional corner portion R. Further, the fastening member 13 can be said to have no restriction on the length of the engagement portions 13a and 13b in the continuous direction, and is cut into appropriate lengths and engaged with the engagement protrusions 11e and 12b. The fastening action can be exerted widely in the circumferential direction of the lighting device 10, and in combination with the staggered alternate engagement, the force of constantly pushing the housing 11 and the lens 12 is not locally concentrated, There is no deformation of the lens 12 unlike the conventional lens 2.

[0017]

As described above, in the vehicular lamp according to the present invention, the front opening of the lamp housing is formed by the peripheral wall, and the lens engaging groove opening at the open end of the front opening is formed by the peripheral wall. A rib having a substantially L-shaped cross section is formed along an edge of the peripheral wall so as to be formed in cooperation with the lens, and a leg that engages with the lens engagement groove is formed on the lens closing the front opening. An engagement protrusion extending in a direction away from each other is formed on the rib and the leg, and a fastening member made of a wire is alternately engaged with each of the engagement protrusions in a state where the lens is mounted on the lamp housing. By being combined, it is possible to secure not only a light weight and a wide fastening width, but also to improve versatility with respect to a lamp shape and the like, and to be able to secure a wide fastening width. Tighten The deformation of the lamp associated with can be prevented.

[Brief description of the drawings]

FIG. 1 shows a vehicle lamp according to an embodiment of the present invention,
(A) is a top view of a vehicle lamp, and (B) is an enlarged sectional view of a main part.

FIG. 2 is a perspective view of a fastening member.

3A and 3B show a conventional vehicular lamp, wherein FIG. 3A is a plan view of the vehicular lamp, and FIG. 3B is an enlarged sectional view of a main part.

FIG. 4 is a front view of the vehicle lamp.

5A is an enlarged plan view of a main part, and FIG. 5B is a cross-sectional view taken along line AA of FIG. 5A.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vehicle lamp 11 ... Lamp housing 11a ... Front opening 11b ... Peripheral wall 11c ... Lens engagement groove 11d ... Rib 11e ... Engagement protrusion 12 ... Lens 12a ... Leg 12b ... Engagement protrusion 13 ... Fastening member

Claims (1)

[Claims] 1. A front opening of a lamp housing is formed by a peripheral wall, and a cross section is taken along an edge of the peripheral wall so as to form a lens engaging groove that opens to an open end side of the front opening together with the peripheral wall. A substantially L-shaped rib is formed, and a leg that closes the front opening is formed with a leg that engages with the lens engagement groove, and the rib and the leg extend in a direction away from each other. A vehicle lamp, wherein projections are respectively formed, and fastening members made of a wire are alternately engaged with each of the engagement projections in a state where the lens is mounted on the lamp housing.