JPH0421201Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a novel vehicle structure in which a lamp body and a cover body that covers the front opening of the lamp body are connected by a thin hinge part that is integrally molded at the same time. This relates to lighting equipment.

[Conventional technology]

Conventionally, as shown in FIGS. 8 to 10,
Vehicle lamps made entirely of synthetic resin are often used, which include a lamp body 51 that holds a bulb 50, and a cover body that is attached to the peripheral edge 51a of the lamp body 51 so that the entire opening of the lamp body 51 can be opened and closed. There is. Among these vehicle lights, the cover body is the light body 5.
1 (see FIG. 8), and a set of outer lenses 52a overlappingly disposed in the upper opening of the lamp body 51 so as to provide a predetermined illumination effect. and the inner lens 52b (see Figure 9).
In the case of If the cover body is a mesh-like protective cover that covers the bulb, the lamp body and the protective cover are assembled into a vehicle lamp by being fixed or fixed with an adhesive 54. The vehicular lamp was formed by integrally molding the same material so as to be connected via a thin hinge part at one side peripheral edge part where they were mutually engaged.

[The problem that the idea aims to solve]

However, in the vehicle lamp having the above structure, the cover body, that is, the lens 52, 52a, 52b, or the protective cover that uses a transparent body made of synthetic resin is molded from different materials. Not only is it necessary to perform molding work using separate molds for each, but also it is necessary to construct, for example, a hinge part 53 as shown in FIG. 10 during molding, which reduces workability in the molding process. Additionally, there was a problem in that workability during assembly of the lamp was extremely poor. Moreover, in cases where the protective cover is used as a cover body and the hinge part to the lamp body is integrally molded with the same material, the protective cover itself can only be made of the same type of opaque material as the lamp body. This was also the cause of reducing the lighting effect of the bulbs held in place.

The present invention was devised in view of the above-mentioned problem, and involves simultaneously molding the lamp body and the cover body made of transparent different materials to cover the opening thereof together with the hinge part that connects the two. The purpose of the present invention is to propose a vehicle lamp that improves the workability of the molding process and the workability of the lamp assembly.

[Means to solve the problem]

In order to achieve the above object, the vehicle lamp according to the present invention includes a lamp body that holds a bulb, and a transparent lens that is attached to the peripheral edge of the front opening of the lamp body to cover the bulb and forms a lens. a cover body made of different materials, and a thin hinge part that extends from the lamp body or the cover body side and connects the two at the edge of the peripheral edge that engages the lamp body and the cover body with each other. The main feature is that the thin hinge part is formed by simultaneous integral molding with the lamp body, and the thin hinge part is molded on both sides of an elastic material different from that of the lamp body and cover body, which are simultaneously integrally molded. be.

Further, the lens formed by the cover body can be constructed of a pair of outer lens and inner lens forming a lens step structure having a predetermined illumination function.

[Effect]

According to the above configuration, the thin hinge part that connects the cover body to the peripheral edge of the lamp body in an openable and closable manner is simultaneously molded integrally with the lamp body and the cover body made of a different material. It is possible to easily assemble a vehicle lamp.

In addition, since the thin hinge part is molded from an elastic material different from that of the lamp body and cover body, the thin hinge part is flexible and strong enough to withstand repeated opening and closing of the cover body when replacing bulbs, etc. Moreover, the sealing performance between the lamp body and the cover body is also improved.

〔Example〕

Embodiments of the vehicle lamp according to the present invention will be described below with reference to the drawings.

1 and 2 show a first embodiment of a vehicle lamp according to the present invention.

In the drawings, 1 is a lamp body that holds a bulb 2 by a holder part 1a, and 3 is a lens made of a transparent material that is attached to the periphery of the front opening of the lamp body 1 to cover the bulb 2. .
These lamp body 1 and lens 3 are
The latter is an opaque body made of synthetic resin such as ABS or PP, and the latter is a transparent body made of a synthetic resin such as ASM or AM, which is a different material. These are the peripheral parts 1 that connect the lamp body 1 and the lens 3 to each other.
A thin hinge portion 4 extending from the lamp body 1 side or the lens 3 side and connected to the corresponding edge of the lens 3 or the lamp body 1 side is formed on one edge of b, and the other side edge A hook 1c is formed on the lens 3 side, and a hook 5 is formed on the lens 3 side so that the hook 5 can be freely hooked onto and removed from the hook 1c.

The thin hinge portion 4 is completely separate from the lamp body 1 or the lens 3, and is integrally molded with, for example, a soft synthetic resin so as to connect the two. As a result, since the thin hinge part 4 is molded from a different elastic material from that of the lamp body 1 and the cover body, the thin hinge part 4 is flexible and can withstand repeated opening and closing of the cover body when replacing the bulb 2, etc. It has sufficient strength and also improves the sealing performance between the lamp body and the cover body.

As shown in FIG. 2, the lamp body 1 and lens 3 configured as described above are folded over the front opening of the lamp body 1 while bending the lens 3 at the thin hinge portion 4, and the hook 5 is closed. Light body 1
What is necessary is just to engage and fix to the side hook part 1c.

3 and 4 show a second embodiment of the vehicle lamp according to the present invention.

The lamp body 11 is formed thin, and an inner lens 13b is provided inside the outer lens 13a in order to temporarily diffuse the irradiated light from the bulb 12 within the lamp chamber 11a.
An outer lens 13a is disposed on one side of the peripheral edge 11b of the light body 11, and an inner lens 13 is disposed on the other side.
b are integrally molded together with the thin hinge portions 14a and 14b, respectively.

Therefore, when assembling the vehicle lamp, first remove the thin hinge portion 14b from the other side of the lamp body 11.
is bent to cover the front opening of the lamp body 11 with the inner lens 13b, and then the thin hinge portion 14a is bent from the other side of the lamp body 11, and the outer lens 13a is attached to the inner lens 13.
What is necessary is to polymerize and engage the upper part of b.

FIG. 5 shows a third embodiment of the present invention.

In this third embodiment, the lamp body 21 is made of a different kind of transparent material, and a protective cover 23 covering the bulb 22 is integrally molded at the same time. Therefore, even if the protective cover 23 is bent at the thin hinge portion 24 to cover the front opening of the lamp body 21, since the protective cover 23 itself is transparent,
The illumination light emitted from the bulb 22 is not reduced.

As described above, the vehicle lamp according to the present invention includes its component parts such as the lamp body 1, 11, 21, the cover body such as the lenses 3, 13a, 13b, 23, and the thin hinge parts 4, 14a, 14b, 24. It is made by integrally molding the two at the same time. Therefore, one principle regarding the simultaneous integral molding method will be explained below with reference to FIGS. 6 and 7.

A guide hole is provided in a set of fixed molds A and B each having a cavity 31a for molding one or more primary molded products 31, and is in contact with one side of the cavity 31a and straddles both molds A and B. 33 are arranged in series, and a cavity 3 for the secondary molded product 32 is provided in the guide hole 33.
2a is housed therein. One side of the cavity 31a for the primary molded product 31 is open in contact with the inside of the guide hole 33, and the opening is opened and closed by the sliding movement of the insert mold C. It's getting old. That is, when the nesting mold C moves in the direction of arrow A in the figure, the fixed mold A
The opening of the cavity 31a formed by and B is closed so that the molten material for the primary molded product 31 can be injected.

Therefore, when molding different materials such as the above-mentioned lamp body and cover body according to the present invention, and the thin hinge portion connecting the two, first, the fixed mold A,
Cavity 3 is created by combining B and nesting mold C.
1a (see FIG. 6), and after molding a primary molded product (for example, a lamp body or a cover body) 31,
The nesting mold C is moved in the direction of arrow B to form a cavity 32a continuous to the primary molded product 31 (7th
(see figure), secondary molded products (e.g. thin-walled hinges)
32 may be molded. Therefore, after molding the primary molded product 31, there is no need to separate the fixed molds A and B or to use another mold, and the fixed mold A remains in the molding position relative to the primary molded product 31.
The secondary molded product 32 can be molded only by the sliding movement of the nesting mold C in the molds C and B, and the molding work time can be significantly shortened. In addition, by shortening this molding time, it becomes possible to control the molding time from primary molding to secondary molding, and the primary molded product 31
After molding, it is possible to inject the molten material for the secondary molded product 32 before it solidifies, so the joining accuracy between the primary molded product 31 and the secondary molded product 32 can be improved. be.

[Effect of idea]

Since the vehicle lamp according to the present invention is constructed as described above, the lamp body and cover are made of different materials, which conventionally could only be molded separately or simultaneously molded with the same type of opaque material as the lamp body. The body and the thin hinge part that connects the two are integrally molded, which not only improves the assembly workability of the vehicle lamp, but also improves the appearance of the cover body and does not impair the lighting effect of the bulb. The practical effects of implementing this invention, such as lower cost, are extremely large.

In particular, according to the present invention, since the thin hinge portion is molded from a different elastic material from that of the lamp body and the cover body, the thin hinge portion is flexible and
It has enough strength to withstand repeated opening and closing of the cover body due to bulb replacement, etc., and also improves the sealing performance between the lamp body and the cover body.

[Brief explanation of the drawing]

Fig. 1 shows a first embodiment of the vehicle lamp according to the present invention, and Fig. 2 is a front cross-sectional view with the lens unfolded, and Fig. 2 shows the lens covered with the front opening of the lamp body. Front sectional view showing the state in which the
The figure shows a second embodiment of the present invention, and is a front sectional view of the main part with the outer lens and inner lens unfolded, respectively, and Figure 4 shows the outer lens and inner lens as well as the front opening of the lamp body. 5 is a front sectional view of the main part showing a third embodiment of the present invention, and FIG. 6 is a main part of the mold configuration showing an example of the simultaneous integral molding method. 7 is a sectional view of a main part of a mold configuration showing an example of the simultaneous integral molding method, FIG. 8 is a front view showing a conventional vehicle lamp, and FIG. 9 is a similar diagram showing another vehicle lamp. FIG. 10 is a front sectional view of a main part, and FIG. 10 is an enlarged perspective view of a main part showing the structure of a hinge part of a conventional vehicle lamp. 1, 11, 21...Lighting body, 3, 13a,
13b...Lens, 4, 14a, 14b, 24...
...Thin hinge part, 23...Protective cover.

Claims (1)

[Claims for Utility Model Registration] (1) A lamp body that holds a bulb, and a cover made of a transparent different material that forms a lens by being attached to the peripheral edge of the lamp body so as to cover the front opening of the lamp body. A thin hinge portion extending from the lamp body or the cover body side and connecting the two is integrally molded at the same time with the lamp body and the cover body at the edge of the peripheral edge that engages the lamp body and the cover body with each other. 1. A vehicular lamp comprising: a thin hinge portion formed of a different elastic material from that of a lamp body and a cover body integrally molded on both sides thereof. (2) The vehicular lamp according to claim 1, wherein the lens formed by the cover body is a pair of an outer lens and an inner lens comprising a lens step structure that provides a predetermined illumination effect.