JPH0220725Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lamp installed in a vehicle such as an automobile or a motorcycle, and particularly relates to a structure for attaching a lens of a vehicular lamp.

[Conventional technology]

Conventionally, the structure of this type of vehicle lamp, particularly the lens mounting structure, is as shown in FIG. Base 21, light bulb 22
reflector 20 with attached gasket 40,
The lenses 30 and 30 were fastened together using screws 50.

[Problem that the invention attempts to solve]

However, the lamp body of this type of lamp has a mounting part that also serves as a wiring hole for passing electric wires in order to attach the lamp to the vehicle and to supply power to the light bulb 22, as shown by reference numeral 12 in FIG. Since the boss 11 is always present, there are restrictions on the position where the boss 11 is provided,
This causes the problem that the lens 30 cannot be mounted reliably, and since the lamp body is usually injection molded from resin, the provision of the boss 11 makes it possible to eliminate the need for that part. There is also the problem that the wall is extremely thick compared to other parts, which causes defects in the shape called sink marks on the outer surface of the lamp body, which should be beautiful, resulting in a poor finish. It was something that would happen.

[Means for solving problems]

The present invention provides a vehicle lamp comprising a lamp body, a reflector, a lens, a light source, etc. for use in automobiles, etc. as a specific means for solving the conventional problems described above. has a plurality of ribs on its inner peripheral surface and a stopper groove that also serves as a drain hole on the lower side of the lens mounting surface, and the reflector disposed inside the lamp body has a plurality of ribs on its outer peripheral surface and a stopper groove that also serves as a drain hole on the lower side of the lens mounting surface. A bayonet-shaped claw that fits into the rib by rotation is provided at a position corresponding to the rib provided on the lamp body, and a boss for engaging the lens using a screw is provided on the inner side, The lens has a convex portion that fits in the stopper groove of the light body with a gap in the front and back direction to form a rotation stop and a drainage hole, and the light body and the reflector have a convex portion that fits in the stopper groove of the light body with a gap in the front and back direction, and the light body and the reflector Thus, the reflector and the lens are engaged by a rotational fit, and the reflector and the lens are engaged by a screw that is screwed into the boss via a gasket,
The above-mentioned conventional problems are solved by providing a lens mounting structure for a vehicle lamp, characterized in that the lamp body and the lens are joined by the stopper groove and the convex portion. It is.

〔Example〕

Next, the present invention will be explained in detail based on an embodiment shown in the drawings.

What is indicated by the reference numeral 1 in FIG.
is provided. In the figure, the ribs 1a are shown in three locations, but the number of ribs 1a may be set arbitrarily; if the vehicle lamp concerned is smaller, the number of ribs 1a may be two, and if the vehicle lamp is larger, the number of ribs 1a is four. , or it can be increased or decreased by taking into account the five locations and their mounting strength. Incidentally, the lamp body 1 has a mounting portion 1b for mounting on the automobile body as in the conventional example.
A hollow portion is provided inside the mounting portion 1b, and a wiring hole 1c is provided therein. Further, a stopper groove 1e is provided on the lens mounting surface 1d, which is located on the lower side when mounted on the vehicle body using the mounting portion 1b.
is provided. The reference numeral 2 in the figure is a reflector, which has been omitted to simplify the drawing, but it goes without saying that the socket and light bulb are attached in the same manner as in the conventional example.

On the outer peripheral part of the reflector 2 near the bottom,
As shown by arrow R in the figure, a claw 2a that is inserted and rotated to fit into the rib 1a of the lamp body.
are provided in a number corresponding to the number of ribs 1a, and furthermore, bosses 2b provided with holes for screws are provided at a plurality of arbitrary locations on the inner surface of the reflector 2. That is, as shown in FIG. 3, when the reflector 2 is inserted into the lamp body 1 and rotated, the claws 2a are engaged with the ribs 1a and held. As shown, at least one of the plurality of ribs 1a is provided in a shape that blocks rotation of the claw 2a. Reference numeral 3 in the figure is a lens, which is provided with mounting holes 3a at positions and numbers corresponding to the bosses 2b of the reflector 2, and has a convex portion at a position corresponding to the stopper groove 1e of the lamp body 1. When forming the convex portion 3b provided with the convex portion 3b, the convex portion 3b is formed so that it fits in the stopper groove in the width direction, and is slightly shorter than the stopper groove in the front-rear direction of the lamp body.
As shown in the figure, this creates a gap when the lamp body and the lens are fitted together to form a drainage hole. The reflector 2 and the lens 3 are screwed together with a screw 5, and at this time, a gasket 4 made of rubber, for example, is tightened together at an intermediate position. With the configuration explained above,
When the lamp body 1 and the reflector 2 are connected by the ribs 1a and the claws 2a, they are still rotatable and not fixed, but the lens 3 is further attached to the reflector 2 by a screw 5 through a gasket 4. By screwing into the stopper groove, the stopper groove and the convex portion are fitted and fixed.

[Effect of idea]

As explained in detail above, the lamp body is provided with a rib that fits with the claw on the reflector side and a stopper groove that fits with the convex part on the lens side, and the reflector has the claw and the lens has the convex part. A corresponding department has been set up,
Furthermore, the reflector is provided with a boss having a screw hole that fits with the lens, and by screwing the reflector into a mounting hole provided in the lens with a screw, each of the fitting portions is positioned at the respective related positions. They fit together and are fixed at a predetermined position, resulting in a vehicle lamp that is exactly the same as the conventional example, but at this time, the lamp body is equipped with a lamp that is not provided in the conventional example. By eliminating the boss for attaching the lens, it is possible to make the wall thickness uniform, which improves the yield of the product without causing defects during molding that seriously impair the appearance, such as sink marks. In addition to having the effect of improving the product value with a beautiful appearance, by providing the boss on the reflector, it can be installed in any position and number of locations provided that the wiring hole of the lamp body does not interfere with the location where the boss is provided. This also has the effect of further strengthening the bond between the lamp body and the lens, thereby further enhancing the practicality of the vehicular lamp.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of a vehicle lamp according to the present invention, Fig. 2 is a cross-sectional view of a conventional example, and Fig. 3 shows a reflector portion of the present invention in an assembled state. FIG. 4 is an explanatory view showing an example of the rib according to the present invention, and FIG. 5 is an explanatory view showing the main part of the drain hole portion of the present invention in an assembled state. 1... Lamp body, 1a... Rib, 1e... Stopper groove, 2... Reflector, 2a... Claw, 2b... Boss, 3... Lens, 3a... Mounting hole, 3b...
Convex part.

Claims (1)

[Scope of utility model registration request] In a vehicular lamp used for automobiles etc., which consists of a lamp body, a reflector, a lens, a light source, etc., the lamp body of the lamp has a plurality of ribs on its inner peripheral surface, and a water droplet on the lower side of the lens mounting surface. Stopper grooves that also serve as punch holes are respectively formed, and the reflector disposed inside the lamp body has a stopper groove that is fitted into the rib by rotation at a position corresponding to the rib provided on the lamp body on the outer circumferential surface of the reflector. A bayonet-shaped claw and a boss for securing the lens using a screw are provided on the inner side, and the lens is fitted with the stopper groove of the lamp body with a gap in the front and back direction. The light body and the reflector are rotationally fitted and engaged by the rib and the claw, and the reflector and the lens are connected to each other through a gasket. A lens mounting structure for a vehicle lamp, characterized in that the lamp body and the lens are connected to each other by the stopper groove and the convex portion.