JPS61269574A - Hanging device for video projector - Google Patents

Abstract

PURPOSE:To facilitate mounting by providing a sectorial hole through which a projection having a screw in the inner face and one end of a stopper metallic fixture are fitted to both left and right side faces of a hanging metallic fixture and a fixing metallic fixture formed with a T-shaped notch to the projection and tightening them by a screwed knob. CONSTITUTION:A hanging metallic fixture main body 12 is fixed to a ceiling member via a bolt 12. A notch 13 having a screw at the inner face of both side faces of the main body 11 is provided and the main body is fixed to the fitting metallic fixture 14 by using a main body fitting hole 15 where a setting main body is formed on an end 14' of the metallic fixture 14 by means of a screw. Further, the T-shaped notch part 16 provided to the metallic fixture 14 is fitted to the projection 13 of the main body 11, a stopper 20 of the stopper metallic fixture 19 is fitted to a sectorial hole 21' formed on the main body 11 via a hanging color 17 and a flat washer 18 and the set main body is fixed to the main body 11 by tightening the screwed knob 21. Thus, the tentative fixation of a video projector is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ceiling hanging device for a video projector.

BACKGROUND OF THE INVENTION An example of a conventional device used to hang a video projector from a ceiling is shown in FIG. This is hanging metal fitting 1
After fixing it to the ceiling 2 in advance, a notch 3 is provided at the rear end of the metal fitting 1, and a hook 6 provided on the video projector body (hereinafter referred to as the Cera2 page body) 4 is attached to the notch 3. Insert. This hook is attached by rotating the front 6 of the set body 4 in the direction of the arrow using the pin 6 as a fulcrum, and attaching the mounting bracket 7 provided on the set body 4 to the L-shaped fixing part provided at the front end of the hanging bracket 1. Temporarily hang. Thereafter, the set main body 4 is fixed to the ceiling 2 with screws 9 via the L-shaped fixing part 8 of the hanging fitting 1.

Problems to be Solved by the Invention However, with the above configuration, the temporary fixation of the set body is unstable, and furthermore, since the screw is pushed from the front of the set body when tightening, the mounting bracket may come off from the L-shaped fixing part. There is a risk that the set body may fall.

Further, there are also problems in that tools are required when tightening the screws, making it difficult to do the work by hand.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a ceiling hanging device that can easily and safely temporarily fix a set body.

Means to Solve the Problems In order to solve the above problems, in the present invention, a protrusion with a screw provided on the inner surface is provided on the ceiling mount body, and this is inserted into the T-shaped notch of the mounting bracket. At the same time, the stop fitting is fitted into a fan-shaped hole provided in the ceiling hanging fitting main body, and the stop fitting is tightened with a threaded knob.

According to the present invention, with the above-described configuration, the set body can be easily fixed by fitting the mounting bracket to which the set body is attached to the protrusion of the ceiling hanging bracket body and manually tightening the threaded knob.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings. Figures 1 and 1B show an exploded perspective view and a sectional view of essential parts of the present invention, in which the ceiling mount main body 11 is fixed to a ceiling member (not shown) via bolts 12 and the like.

It may be directly fixed to the ceiling member without using the bolts 12 or the like.

Projections 13 having screws on the inner surface are provided on both sides of the ceiling mount main body 11, and the set main body (not shown) can be screwed into the mounting bracket 14 through a set main body mounting hole 16 formed at the end 14' of the mounting bracket. etc. is fixed. Also, the T-shaped notch 16 provided on the mounting bracket 14 is fitted into the protrusion 13 of the ceiling hanging bracket main body 11, and the stopper part 20 of the stopper bracket 19 is inserted through the ceiling hanging collar 17 and the flat washer 18.
is fitted into the fan-shaped hole 21' formed in the ceiling mount main body 11, and the screwed knob 21 is tightened to fix the set body to the ceiling mount main body 11.

Also, depending on the projection angle of the set body, the ceiling mount body 11
Set the main body mounting angle adjusting hole 23 or 24 to the screw mounting hole 22, and tighten the screw 26 to hang the video projector main body from the ceiling at the desired angle.

FIG. 2 is a front view and a side view showing a state in which the video projector set body is attached to the ceiling mount 26 using the mounting bracket 14 of this embodiment. This is used to hang the video projector from the ceiling.

Effects of the Invention As described above, according to the present invention, the projection having a screw on the inner surface of the ceiling mount bracket book 6 page body, the fan-shaped hole that fits with the stopper bracket, and the angle adjustment screw mounting hole of the projector body. After the protrusion is hooked into the T-shaped notch of the mounting bracket and temporarily fixed, the threaded knob is tightened by hand.This makes it easy to temporarily fix the video projector. This can be done more safely and improves work efficiency compared to conventional methods.

[Brief explanation of the drawing]

Figure 1, B is an exploded perspective view and a sectional view of essential parts of a ceiling hanging device for a video projector according to an embodiment of the present invention, and Figure 2, B is a front view showing the state in which it is suspended from the ceiling. Figures 3 and 3B are a side view and an exploded perspective view of a conventional video projector ceiling hanging device. 11...Ceiling mount bracket body, 13°°°°°°Protrusion with screw on inner surface, 14...Mounting bracket, 1
6...T-shaped notch, 17...Ceiling collar, 19...Stopper fitting, 20...
... Part of the stopper, 21 ... Threaded knob,
21'...Sector-shaped hole.

Claims (1)

[Claims] A projection having a thread on the inner surface and a fan-shaped hole into which one end of the stopper fitting fits are provided on both left and right sides of a ceiling mount fitting for hanging a video projector, and a T-shaped notch is formed to fit into the projection. A ceiling hanging device for a video projector, characterized by comprising a mounting bracket and a screwed knob.