JPS5929329Y2 - Light emitter support - Google Patents

Description

[Detailed description of the invention] This invention relates to the structure of the support part of the light emitting body of an incandescent light bulb, which is used in automobiles, motorcycles, etc., which particularly requires vibration resistance, and in particular relates to a means for fixing a shock absorber. The aim is to reduce the number of machining steps, protect the lamp from vibrations received while driving, and thereby prevent deterioration of its function as a light bulb.

For example, as shown in Fig. 1, a shock absorber A is provided with the same number of through holes as the supports S, and each through hole is used as a conventional support for a light emitter with anti-vibration characteristics. After inserting each support, the legs of the filament (f) are fitted into the notched grooves at the tip of each support, and are crushed to fixedly support the filament, and the shoulders of each support support the lower surface of the shock absorber. , its upper surface is supported by pressing from the upper surface by an auxiliary support S' fixed to an arbitrary support, or the arrow part in the figure is crushed to make the support somewhat flattened, and the upper and lower surfaces are Measures are taken to prevent dynamic vibrations.

However, each through-hole must have a support (S) inserted through it, so the diameter of the hole must be larger than the outer diameter of the support, so a gap is required between the two. In addition, the shock absorber may move in the axial direction of the support due to vibration and come into contact with the filament, reducing luminous efficiency and causing insufficient illuminance, or at least the movement in the lateral direction cannot be prevented. However, it requires wasteful work such as fixing a separate auxiliary support S' and crushing/expanding each support, increases the number of parts and processing steps, and is unsuitable for lowering the cost of the product.

The present invention is intended to solve the above-mentioned drawbacks by simple means, and the structure thereof will be described in detail below with reference to a specific embodiment with reference to FIG. 2 and subsequent figures.

In the figure, parts that are the same as those in the previously described example are given the same reference numerals. OA is a shock absorber made of a heat-resistant material such as steatite, and is formed into an approximately pentagonal shape with a protruding side, and h is a shock absorber. This is a through hole through which the support described later is inserted, one of which is
As shown in plan view in the figure A and cross-sectionally in the figure opening, a concave groove C having approximately the same diameter as the support into which the shoulder of the support S is fitted is formed. has been done.

This project consists of the above-mentioned structure.Next, to describe the assembly function and the effect, as shown in the actual perspective view in Fig. 3, in the through hole, three supports The remaining one may be loaded so that the lower surface of the support shoulder is fitted into the groove C formed in the shock absorber.

In this case, as described above, the shock absorber A is placed on the upper surface of the shoulders of three supports S, and in this state, the shock absorber A is placed over the entire length of the lower surface of the shoulder of the remaining one support S. Since the upper surface acts to suppress and support each support, vertical movement in the axial direction of each support is sufficiently prevented.In addition, since the groove C is widely pressed and fixed over the entire length of the groove C, movement in the left and right direction is prevented. It can also be sufficiently prevented and thus maintain a constant position.

As described above, by forming the concave groove in the shock absorber, the upper and lower surfaces of the shock absorber are locked and fixed by the husband support shoulders, thereby reliably preventing the shock absorber from moving due to vibration. This eliminates the need for extra parts and wasted man-hours unlike conventionally used products, improves workability, and makes it possible to provide inexpensive products.

Note that the shape of the shock absorber is not necessarily limited to a substantially pentagonal shape; in short, the shape of the shock absorber is square, rectangular, etc. as long as it is suitable for supporting the filament and can withstand electrical insulation.
It goes without saying that the groove can be arbitrarily changed to a circular shape, etc., and the groove can also be formed in any shape other than a specific through hole.

[Brief explanation of the drawing]

Figure 1 shows the support part of the conventional light emitter, Figure 2 shows the shock absorber of the present invention, A is a planar view, and the opening is a.
FIG. 3 shows a support according to the invention in a cross-sectional view along the line 7a and in a perspective view, respectively. A: Shock absorber, C: Concave groove, f: Filament, h: Through hole, S: Support, S '・・・Auxiliary support.

Claims (1)

[Scope of utility model registration request] It consists of a shock absorber A having a plurality of through holes, one of which is formed with a groove C having approximately the same diameter as the support into which the shoulder of the support S is fitted. . A support for a light-emitting body, characterized in that its lower surface is placed on the shoulders of three supports, and its upper surface is compressed and supported by the shoulder of another support by the groove.