JPH066403Y2 - Vehicle lamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle lamp that is attached to the front edge of the roof of a large vehicle or the like.

(Prior art and its problems) For example, on the roof front edge of the cab of a large vehicle,
A vehicular lamp showing a vehicle is provided. Considering that the vehicular lamp is neither too bright nor too dark, and has good visibility even with changes in weather and road conditions. There is.

In the conventional vehicle lamp, a light bulb is attached to a plate-shaped resin lamp body, and the light bulb fixed to the lamp body is surrounded by a resin cover having a lens surface on at least one side and an open bottom surface. A rubber seal packing is interposed between the lamp body and the cover to make the interior of the vehicle lamp liquid-tight.

However, in the above-mentioned conventional vehicle lamp, there is a problem that the bulb replacement work becomes complicated due to the large number of components, and more importantly, the vehicle 1
There is also a problem that the cost for the vehicle lamp becomes excessive because a large number of lamps are used for each vehicle.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a vehicle lamp in which the number of components is reduced by allowing the lamp body to also function as a seal packing.

(Means for Solving the Problems) In order to achieve the above object, a vehicle lamp according to the present invention includes a resin cover surrounding a light bulb housed therein, having a lens surface on at least one side, and having a bottom opening. A lamp body made of a rubber member that closes a bottom opening of the resin cover, has a bank portion that closely adheres to an inner wall surface of the resin cover along the entire circumference of the opening edge, and has a seal packing and a base plate. It is configured with.

(Operation) The lamp body that closes the bottom opening of the resin cover is fitted along the entire circumference of the opening edge of the resin cover by the bank portion thereof, and also has the function of the seal packing.

Embodiment An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of a vehicle lamp according to the present invention,
The vehicle lamp 1 comprises a cover 2 and a lamp body 3, in which a light bulb 4 is housed and screwed and fixed to a bracket 8 fixed to a vehicle roof 7 by screws 5 and nuts 6.

More specifically, the cover 2 includes, for example, a substantially rectangular upper plate forming an upper wall portion of the vehicular lamp 1, and a substantially rectangular side wall that extends downward from the entire peripheral edge of the upper plate. Is an integrally molded lens made of, for example, an acrylic resin, and the bottom surface is open. Inside the cover 2, unevenness 2a is formed over the front surface in consideration of light distribution performance. Further, boss portions 2b each having a semi-cylindrical outer shape are formed at the lower ends of the center of both side walls of the cover 2 so as to project laterally, and the upper surface of the boss portion 2b is a horizontal plane. A hole 2c for the screw 5 is formed. In addition, a central axis passes through the center of the hole 2c, and a horizontal cross-sectional shape forms a circular arc having a diameter larger than the diameter of the head of the screw 5 and a concave groove 2d extending in the vertical direction is cut out in the side wall located above the boss portion 2b. Has been formed.

The lamp body 3 includes an annular bank portion 3a whose outer peripheral wall shape conforms to the lower end edge shape of the cover 2, and a film-shaped board 3b which closes the inner space of the annular bank portion 3a.
These are integrally molded to form the bottom portion of the vehicular lamp 1 fitted to the open end of the bottom surface of the cover 2, and the material is a flexible synthetic rubber member. Lamp body 3 board
Although 3b is arranged at the same height as the upper surface of the bank portion 3a, an edging portion 3c is formed on the upper surface of the bank portion 3b so as to extend upward over the entire circumference thereof. A circular recess 3d is formed at the center of the front end of the board 3b, that is, at a position below the light bulb 4 described later, and a drain hole 3e is formed at the center of the recess 3d. Further, a small-diameter hole 3f through which a lead wire 9a, which will be described later, is inserted, is formed in the board 3b at substantially the center near the rear end. The outer peripheral side surface of the bank portion 3a is inclined according to the inner wall shape of the opening end of the cover 2, and
At the lower end of the outer peripheral side surface, a step portion 3g is formed over the entire circumference, and a groove 3h is formed along the inner peripheral edge of the upper surface of the step portion 3g. Further, on the lower surface of the bank portion 3a, three annular protrusions 3k, 3m, 3n are formed downward in the width direction over the entire circumference, but the outermost protrusion 3k is the lower end of the step portion 3g. Along the outer peripheral edge, the innermost protrusion 3n is arranged along the inner peripheral edge of the lower end of the bank 3a, and the protrusion 3m is arranged substantially at the center of the lower surface of the bank 3a (FIG. 2). And Fig. 3).

In the lamp body 3, a boss portion 3p is formed on the bank portion 3a and the board body 3b at a position facing the boss portion 2b of the cover 2 so as to straddle the bank portion 3a and the board body 3b.
The boss portion 3p bulgingly formed on the side wall of a is formed in a semi-cylindrical shape, and the boss portion 3p formed in the board body 3b is formed in a substantially rectangular parallelepiped shape. The upper surface of the boss portion 3p is formed flush with the upper surface of the edging portion 3c, and the screw 5 is provided at a position intersecting with the edging portion 3c.
A hole 3r for use is formed. Further, in the above-mentioned rectangular parallelepiped-shaped portion of the boss portion 3p, a notch 3 that is parallel to the upper surface and opens inside the boss portion 3p, and each end portion of a stay 10 to be described later is inserted.
s is formed. Further, a drain hole 3t is formed at the lower end of the boss portion 3p on one side, and the drain hole 3t is substantially at the center of the bank portion 3a in the wall thickness direction as shown in FIGS. 4 and 5. Since it is shaped like a crank at the position, it has to change direction twice in the course of passing through the drainage hole 3t, which makes it difficult for rainwater and the like to enter.

The light bulb 4 is positioned above the recess 3d of the board body 3b of the lamp body 3 in the lamp body 3 via the socket 9 into which the light bulb 4 is screwed and the stay 10 to which the socket 9 is fixed in the center. Is attached as.

More specifically, the stay 10 is, for example, a plate material that is formed by bending so that the center is higher than both ends, and the center is formed in a shape corresponding to the outer peripheral shape of the socket 9 and the socket 9 is fixed. Further, both ends thereof are formed to have substantially the same shape as the cut 3s formed in the boss portion 3p of the lamp body 3 and a hole 10a for the screw 5 is formed.

A bracket 8 is fixed to the roof 7 at a mounting position of the vehicular lamp 1, and a hole is formed behind the bracket 8 at a position facing the hole 3f of the lamp body 3, and a grommet 11 is formed on the periphery of the hole. Is fitted. The bracket 8 is formed by bending a long plate material into a substantially inverted Ω shape, and holes 8a for the screws 5 are formed at both upper ends of the bracket 8, respectively. The nut 6 is welded.

In order to assemble these parts, first, the light bulb 4 is screwed and fixed to the socket 9 fixed to the stay 10, and the stay 10 is attached to the cuts 3s formed in the left and right boss portions 3p of the lamp body 3, respectively. Insert both ends of 10, respectively. next,
The cover 2 is assembled to the lamp body 3 in which the stay 10 is fitted in the notch 3, but the opening end of the cover 2 is fitted in the groove 3h of the lamp body 3 and the holes 2c and 10a for the screws 5 are formed.
And 3r are matched. Further, the assembled vehicle lamp 1 is positioned such that the holes 2c, 10a and 3r for the screws 5 are aligned with the holes 8a for the screws 5 of the bracket 8, and the screws 5 are placed in the holes 2c, 10a for the screws 5. Three
The vehicle lamp 1 is fixed to the bracket 8 by inserting r and 8a and screwing it to the nut 6 welded to the bracket 8.

At this time, the bank portion 3a of the lamp body 3 comes into close contact with the opening end of the cover 2 to make the inside of the vehicle lamp 1 liquid-tight, but as shown in FIG. 2, the rim portion 3c of the lamp body 3 is stepped. Since it is located above the portion 3g, rainwater does not enter the inside and liquid tightness can be further enhanced. Further, when the vehicle lamp 1 is screwed and fixed to the bracket 8 with the screw 5, as shown in FIG.
The ridges 3k, 3m, 3n on the lower surface of a are pressed, respectively, and these are brought into close contact with the roof 7 to make the bottom portion of the vehicle lamp 1 liquid-tight. Further, the lamp body 3 made of a rubber member is interposed between the cover 2 and the stay 10 and between the stay 10 and the bracket 8, respectively, and as a result, the sealing performance inside the vehicle lamp 1 is improved and the lamp body 3 is protected against the light bulb. It can also have anti-vibration effect. Furthermore, the inside of the roof 7 is kept liquid-tight by the grommet 11 fitted to the roof 7.

(Effect of the Invention) As described above, according to the present invention, a resin cover that surrounds a light bulb housed inside and has a lens surface on at least one side and a bottom surface opens, and a bottom opening of the resin cover is closed. And a lamp body made of a rubber member that has a bank portion that closely contacts the inner wall surface of the resin cover along the entire circumference of the opening edge, and that also serves as a seal packing and a base plate. There are excellent effects such as a reduction in the number of parts to reduce the cost, an easy bulb replacement work, and an improvement in liquid tightness in a vehicle lamp.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a vehicular lamp according to the present invention, FIG. 2 is a longitudinal sectional view of the vehicular lamp shown in FIG. 1 when assembled, and FIG. FIG. 4 is a partial cross-sectional front view of the vehicle lamp shown in the assembling state, FIG. 4 is an enlarged side view of an essential part viewed from an arrow IV in FIG. 3, and FIG. is there. 1 ... Vehicle lamp, 2 ... Cover, 3 ... Lamp body, 3a ... Bank section, 3b ... Board body, 3c ... Edge section, 3e, 3t ... Drainage hole, 3g ... Step section, 3h ...
Grooves 3k, 3m, 3n ... Ridges, 3s ... Incisions 4 ...
Light bulb, 7 ... Roof, 8 ... Bracket, 10 ... Stay, 11 ... Grommet.

Claims (1)

[Scope of utility model registration request] 1. A resin cover which surrounds a light bulb housed inside and has a lens surface on at least one side and whose bottom surface is open, and a bottom surface opening of the resin cover is closed so as to extend along the entire circumference of the opening edge. It has a bank portion that closely adheres to the inner wall surface of the resin cover,
A lamp for a vehicle, comprising a lamp body made of a rubber member, which has both a seal packing and a base plate.