JPS5932957Y2 - How to attach the cover of the instrument lighting bulb - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a cover of a lighting bulb in an instrument to an instrument case.

In order to moderate the intensity of light from a light bulb illuminating a meter, it is well known to install a cover made of synthetic resin material on the meter case so as to be positioned around the light bulb.

Conventionally, screws were used to secure this cover to the instrument case.

However, in such a conventional structure, the cover is thin, so there are problems such as cracks and damage when tightening screws.
In these respects, it has the drawbacks of making work more difficult and increasing costs due to the occurrence of defects.

In order to solve the above-mentioned problems, this invention has a rib integrally formed on the instrument case in which the light bulb is installed.The rib allows the cover to surround the light bulb, and furthermore, it stands up integrally from the instrument case. By fixing a light-shielding plate that makes surface contact on the upper side of the cover to one or more of the provided pillars, the cover can be fixed to the instrument case without damaging it, and the shape of the light-shielding plate reduces the amount of light from the bulb. The purpose is to be easily changeable.

The present invention will be described below with reference to embodiments shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an instrument case, which is made of synthetic resin material, and has a hole 3 in which a lighting bulb 2 is fixed.

Reference numeral 4 denotes a cover, which is made of polycarbonate and has a positioning member 5 projecting outward and laterally from its lower end.

Reference numeral 6 denotes a rib formed integrally with the case 1 around the hole 3, and a receiver 7 for holding the positioning 5 of the cover 4 is formed in the rib 6.

Reference numeral 8 denotes pillars that are integrally erected from the case 1, and in this embodiment, three pillars are formed.

A light-shielding plate 9 made of a tin plate is press-fitted onto the top of the support column 80, and a curved surface 10 is formed in the light-shielding plate 9 so as to make surface contact with the upper part of the cover 4.

In the above configuration, the cover 4 can be fixed in a position surrounding the light bulb 2 by holding the positioning 5 of the cover 4 between the receivers 7 of the ribs 6 integrally formed from the case 1.

Furthermore, the curved surface 10 of the light-shielding plate 9 and the upper side of the cover 4 are in surface contact with each other, so that the cover 4 is pressed and fixed by the light-shielding plate 9 from above.

Thereby, the cover 4, which is thinly molded from a synthetic resin material and is extremely vulnerable to external forces, can be attached to the instrument case 1 without being affected.

Furthermore, the shape of the light shielding plate 9 placed above the cover 4 allows the light intensity and irradiation direction of the light bulb 2 to be easily adjusted.

Note that the number of supports 8 to which the light shielding plate 9 is fixed can be arbitrarily selected according to the size and shape of the light shielding plate 90, and is not limited to three as described in the above embodiment, but at least one is sufficient.

As described above, according to the present invention, the rib provided on the instrument case and the light shielding plate that presses the cover from above,
Since the cover that surrounds the light bulb is attached to the instrument case, there is no damage to the cover, which eliminates defects such as cracks and breakage, increasing work efficiency.

In addition, by using a light shielding plate to hold down the cover, the parts can be used effectively and effectively, which is of extremely high practical value.

[Brief explanation of the drawing]

The figures are all embodiments of the present invention, and Figure 1 is a front cross-sectional view of the main part excluding the light shielding plate, and Figure 2 is Figure 1 A with the light shielding plate fixed.
-B-C line sectional view. 1...Instrument case, 2...Light bulb, 4...Cover
6... Rib, 8... Support, 9... Light shielding plate.

Claims (1)

[Scope of utility model registration request] Protruding ribs and posts for positioning the cover covering the instrument lighting bulb are provided in the vicinity of the instrument lighting bulb fixing hole of the instrument case, and the pillar is provided with a light-shielding plate that makes surface contact on the upper side of the cover. A mounting structure for an instrument lighting bulb cover that is fixed.