JPS5812332Y2 - Mounting device for covers etc. on lighting equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounting device for a cover or the like in a lighting fixture.

Generally, as shown in FIG. 1, a lighting device has a ballast 2 and a lamp 3 attached to a main body case 1, and a cover 4 attached around these.

Therefore, looking at the conventional means of attaching the cover 4 to the main body case 1, the cover 4 is formed with an insertion hole 5, and the main body case 1 is formed with a nut portion 6 facing the insertion hole 5. , a tapping screw 8 to which a spacer I is attached from the outside of the insertion hole 5 is screwed onto the nut portion 6.

Here, the tapping screw 8 consists of a head 9 and a threaded portion 10.

However, when looking at the nut portion 6 formed on the main body case 1, as shown in FIGS. 2 and 3, it has a notch 11 and a step 12, so it is difficult to install the tapping screw 8. At this time, the self-tapping screw 8 is inclined by this step 12, and its head 9 becomes oblique as shown in FIG. 4, resulting in an unsightly appearance.

This idea was created in view of these points, and when installed using self-tapping screws, the head can be made almost parallel to the cover, reflector, etc., and the lighting can eliminate an unsightly appearance. The object of this invention is to obtain a device for attaching a cover etc. to a device.

This invention is designed to attach a cover, a reflector, etc. by fixing a self-tapping screw to a nut formed in the main body case, and to attach a cover, a reflector, etc. It is characterized by inserting a spacer having a cut portion formed at the tip thereof.

Therefore, by inserting a spacer with a cut portion formed to match the level difference, the head of the tapping screw can be made parallel to the cover, etc., thereby eliminating the unsightly appearance. It is structured as follows.

An embodiment of this invention will be explained based on FIGS. 5 to 9.

Components that are the same as those shown in FIGS. 1 to 4 are designated by the same reference numerals, and description thereof will be omitted.

In this embodiment, as shown in FIGS. 5 and 6, a spacer 15 is provided in which a cut portion 14 including a rising portion 13 is formed at the tip, and this cut portion 14 is formed in the nut portion 6 b. The slope is set to match the step 12.

Here, the step 12 is a step necessary for the screws 1 to 8 to function smoothly as a screw, and is approximately 1rIan.

The spacer 15 is inserted in the middle of the threaded portion 10 of the self-tapping screw 8, as shown in FIG.

In this inserted state, the spacer 15 is inserted from the threaded portion 10 with its own blade.
The spacer 15 does not fall, and when the tapping screw 8 is rotated while holding the spacer 15, it rotates idly.

In such a configuration, the cover 4 is attached to the main body case 1 by screwing the tapping screw 8 into the nut portion 6 from the outside of the insertion hole 5.

At the beginning of this screwing, the spacer 15 also rotates as the tapping screw rotates 80 times.

As this screwing progresses, the rising portion 13 of the spacer 15 comes into contact with the notch 11 of the nut portion 6, and the spacer 15 rotates idly against the rotation of the tapping screw 8.

At this time, the cut portion 14 of the spacer 15 is in contact with the step 12 of the nut portion 6, and the upper end surface of the spacer 15 is parallel to the cover 4.

After the spacer 15 is positioned in this way, when the tapping screw 8 is further rotated, only the tapping screw 8 advances until its head 9 comes into contact with the upper end surface of the spacer 15, completing the screwing.

The state at this time is shown in FIG. 8, and the overall state is shown in FIG. 9.

In this way, since the tapping screw 8 is screwed while the directionality is determined by the spacer 15, the head 9 of the tapping screw 80 after installation is parallel to the cover 4, and the aesthetic appearance can be maintained. .

In this embodiment, the cover 4 is attached to the main body case 1, but the present invention is also applicable to a case where a reflector or the like is attached instead of the cover 4.

In this invention, as mentioned above, a spacer with a cut part that matches the height difference in the nut part is inserted into the tapping screw, so that the tapping screw can be attached while determining the directionality with the spacer. The head of the cover can be made parallel to the cover, etc., which has the effect of eliminating an unsightly appearance after installation.

[Brief explanation of the drawing]

Fig. 1 is an overall longitudinal sectional side view showing an example of the conventional technology, Fig. 2 is a front view of the nut portion thereof, Fig. 3 is a longitudinal sectional side view thereof, and Fig. 4 is a longitudinal sectional side view of the conventional example.
5 is a side view of a spacer showing an embodiment of the invention, FIG. 6 is a perspective view thereof, FIG. 1 is a side view, and FIG. 8 is a longitudinal side view showing an installed state. FIG. 9 is a longitudinal sectional side view of the whole. 1...Body case, 4...Cover, 6
・・・・・・Nut part, 8・・・Tapping screw,
9...Head, 10...Threaded part, 12.
...Step, 14...Cut part, 15...
····Spacer.

Claims (1)

[Scope of utility model registration request] In a device in which a cover, a reflector, etc. are attached by fixing a self-tapping screw to a nut portion formed on a main body case, a cut portion is formed at the tip of the self-tapping screw portion to match the step of the nut portion. A mounting device for a cover, etc. that can be attached to a lighting equipment, characterized in that a spacer is inserted therein.