JPH0132247Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a lighting device for an automobile, and more specifically to a lighting device for an automobile in which a bulb and its wiring are installed on a back cover that is attached to the back of the lighting body so that it can be opened and closed. This relates to the improvement of lighting equipment.

<Prior art> As this type of automotive lighting equipment,
Some of these are disclosed in Publication No. 15912 and Publication of Utility Model Publication No. 56-29842.

In conventional automotive lamps of this type, if the back cover that supports the bulb and its wiring comes off from the lamp body due to vibration or poor installation, the wiring may be damaged if the bulb is turned on without knowing this. There was a risk of the lamp being shot or the heat generated from the bulb damaging the lamp itself or the car body.

<Problems to be solved by the invention> The present invention was made in view of the above-mentioned drawbacks of the conventional technology. It is an object of the present invention to provide a safe automobile lamp in which the bulb does not turn on even when the lamp is turned on.

<Means for Solving the Problems> The automotive lamp of the present invention that achieves the above object is an automotive lamp in which a bulb and its wiring are installed on a back cover that is attached to the back of the lamp body so as to be openable and closable. One of the switch switches for opening and closing the bulb's electric circuit is installed on the lamp body side, and the other switch switch is installed on the back cover side.

<Example> Hereinafter, an example of implementing the present invention will be described based on the drawings.

The lamp body 1 is molded into a desired shape, has a lens 2 installed on its front side, a back cover 4 with a bulb 3 and its wiring installed on its back side that can be opened and closed, and a reflector (not shown) inside. It is installed to constitute an automobile lamp.

The back cover 4 is attached to the lamp body 1 so that it can be opened and closed, but it may also be configured such that it can be opened and closed by forming a hinge 5 at one place as shown in the illustrated example, or it can be removed from the lamp body 1 and configured to be able to be opened and closed. Also good. The back cover 4 is equipped with the valve 3 and wiring such as a valve socket 5, a cord 6, and a terminal (not shown), as well as the other switch 7 for opening and closing the electric circuit of the valve 3. A switch 7b is installed, and the switch 7b is electrically connected to the valve socket 5 or the terminal by a cord 6.

The switch 7 is composed of one switch 7a and the other switch 7b.
A is attached to the light body 1 side, and the other switch 7b is attached to the back cover 4 side, and when the back cover 4 is opened and closed with respect to the light body 1, this switch 7 opens and closes, and the electric circuit of the bulb 3 is turned on. - Formed to turn OFF.
That is, in the embodiment shown in FIGS. 1 to 3, one switch element 7a is formed protruding from the same body as the lamp body 1, for example, at a position inside the opening edge of the lamp body 1, and a conductive plate 9a is attached to the outer periphery of the convex block 8. A conductive plate 9b is attached to a concave block 10 formed protruding from the back cover 4 at a position where the other switch element 7b corresponds to one switch element 7a, and a conductive plate 9b is attached to form a concave shape. One switch element 7a formed in a convex shape is elastically held between the other switch element 7b formed in a concave shape so that they are electrically connected.

In the embodiment shown in FIGS. 4 and 5, a conductive plate is installed inside the opening edge of the lamp body 1 to serve as one switch element 7a, and is electrically connected to the bulb 3 on the back cover 4. Two conductive plates 11 like printed wiring
is installed as the other switch element 7b, and when the back cover 4 is closed to the lamp body 1, the other switch element 7b consisting of two conductive plates 11 is electrically connected to one switch element 7a of the lamp body 1. It is configured so that it can be connected.

Although not specifically shown in the drawings, suitable engagement means are provided between the lamp body 1 and the back cover 4, as in the past, to prevent the back cover 4 from being accidentally removed from the lamp body 1. There is.

<Effects of the invention> Since the automobile lamp of the present invention is constructed in this way, when the back cover is firmly attached to the light body, one switch element installed on the light body side and the back cover side are connected. The bulb is electrically connected to the other switch, and the bulb's electrical circuit becomes a closed circuit. Therefore, when the bulb switch installed on the driver's seat side is turned on, the bulb lights up and the back cover closes to the lamp body. If it is disconnected from the switch, one switch on the lamp body side and the other switch on the back cover will be electrically disconnected, and the bulb's electrical circuit will become an open circuit. The bulb will not light up even if I turn it on. Therefore, even if you turn on the bulb switch installed on the driver's seat without knowing that the back cover has come off the lamp body for some reason, the bulb will not turn on and it is safe.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; Fig. 1 is a partially cutaway front view, Fig. 2 is a large cross-sectional view of the nucleus taken along the line 2-2 in Fig. 1, and Fig. 3 is an enlarged view taken along the line 3-3 of Fig. 1. Cross section, 4th
The figure is a sectional view showing another embodiment of the present invention, and Fig. 5 is the same A.
This is a view from the arrow. In the figure, 1 is the lamp body, 3 is the bulb, 4 is the back cover, 7a
is one switch child, and 7b is the other switch child.

Claims (1)

[Scope of utility model registration request] In an automobile lamp in which a bulb and its wiring are installed on a back cover that is attached to the back of the lamp so that it can be opened and closed, one switch element for opening and closing the electric circuit of the bulb is installed on the lamp body side, and the other switch element is installed on the lamp body side. An automobile light fixture characterized by being installed on the back cover side.