JPH0435107B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ceiling hanging device used for a video projector or the like.

Prior Art A conventional device used for hanging a video projector or the like from the ceiling was constructed as shown in FIGS. 4A and 4B. After the hanging metal fitting 31 is fixed to the ceiling member 32 in advance, a notch 33 is provided at the rear end of the metal fitting 31.
A hook pin 35 on which the video projector body 34 is attached is fitted, and the front end portion 36 of the video projector body 34 is rotated in the direction of the arrow using the hook pin 35 as a fulcrum. An L-shaped fixing part 38 is attached to the front end of the hanging fitting 31 by a mounting fitting 37 provided on the video projector main body 34.
After being temporarily suspended, the video projector body 34 is attached to the ceiling member 2 via the L-shaped fixing portion 38 of the mounting bracket 31 by tightening the screws 39 with a tool.

Problems to be Solved by the Invention However, in the above configuration, after the video projector main body 34 is temporarily suspended, the video projector main body 34 is tightened with screws using a tool.
4, there is a risk that the mounting bracket 37 will come off from the L-shaped fixing part 34 and the video projector main body 34 will fall. Further, there are problems in that a tool is required when tightening the screws, making it difficult for one person to do the work.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a ceiling hanging device that can easily and safely temporarily fix the main body of a video projector or the like.

Means for Solving the Problems In order to solve the above problems, in the present invention, protrusions with screws provided on the inner surface are provided on both sides of the mounting bracket, and the protrusions are suspended from the T-shaped notch of the hanging bracket. At the same time, the stopper fitting is fitted into a fan-shaped hole provided in the mounting fitting and is tightened with a threaded knob.

Effects According to the present invention, with the above-described configuration, first, the T-shaped notch of the hanging fitting fixed to the main body of the video projector or the like is temporarily fixed to the protrusion of the mounting fitting. Furthermore, by tightening the screwed knob, the main body of a video projector or the like can be easily hung from the ceiling.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a perspective view showing the mounting state of the mounting bracket used in a ceiling hanging device according to an embodiment of the present invention, Fig. 2 is a perspective view of the main body of the video projector, and Fig. 3 is a perspective view of the main body of the video projector. FIG. 4 is a front view and a side view of the device attached to the ceiling. First, explanation will be given from FIG. 2. A plurality of angles 2 are installed on a top plate 4 of a video projector main body 1 suspended from the ceiling. An insertion hole 3 for a bolt 8 for fixing a hanging fitting 6 is formed in this angle 2. Further, the top plate 4 is provided with an L-shaped fixture 5 for vertically fixing the hanging fixture 6.

Figure 1 is a perspective view of the main parts of the mounting bracket.
Connect the bolt insertion hole 3 of the angle 2 installed in the top plate 4 of the video projector main body 1 and the mounting hole 7 of the hanging metal fitting 6 with the bolt 8 and nut 9 as explained in FIG.
It will stick. At this time, the hanging fitting 6 is attached to the angle 2 through the attachment hole 7 with bolts 8 while being laid down on the top plate 4 as shown by the dotted line. Next, the hanging metal fitting 6 is raised 90 degrees in the direction of the arrow, and the hanging metal fitting 6 is vertically fixed by the locking part 10 using the elasticity of the fixing metal fitting 5.

With this configuration, the hanging metal fittings 6 can be firmly fixed in a perpendicular state to the top plate 4,
The video projector main body 1 and the bolt 9 can be integrally configured. A T-shaped notch 11 formed in the hanging metal fitting 6 is provided on the side surface of the mounting metal fitting 12, and a protrusion 13 having a screw on the inner surface is provided.
to temporarily fix the video projector main body 1 and the mounting bracket 12. By providing the projections on both sides of the mounting bracket 12, the hanging bracket 6 can be fitted into the projections 13 and temporarily fixed on the opposite side surface as well.

Next, the threaded knob 18 is tightened by hand via the ceiling hanging collar 15, flat washer 16, and stopper fitting 17 to be fixed to the protrusion 13 of the hanging fitting 12. At this time, the stopper part 19 of the stopper fitting 17 fits into the fan-shaped hole 20, so that a strong fixation can be achieved. Also, depending on the projection angle of the video projector main body 1, the screw mounting hole 21 of the hanging metal fitting 12 and the mounting angle adjustment hole 22 of the hanging metal fitting 6 are adjusted.
Or 23 can be selected and the screw 24 can be tightened. The opposite side surface of the mounting bracket 12 also has the above hanging configuration.

FIGS. 3A and 3B are a front view and a side view showing the video projector main body 1 mounted on the ceiling 25 using this hanging bracket, and the third mounting bracket 1 is shown in FIG.
2 is directly attached to the ceiling 25.

Note that the present invention can be applied to hanging various types of equipment from the ceiling in addition to the video projector as described above.

Effects of the Invention As described above, according to the present invention, projections having screws on both sides of the mounting bracket, a fan-shaped hole that fits with the stopper bracket, and an angle adjustment screw mounting hole on the main body of a projector, etc. are provided, and a video projector is installed. After temporarily fixing the protrusion by hooking it onto the T-shaped notch of the hanging bracket attached to the main body of the Ector, etc., it can be hung from the ceiling by manually tightening the screwed knob, so it is especially suitable for hanging. Reliable temporary fixation can be achieved simply by fitting the notch of the hanging fitting into the protrusion of the mounting fitting, and since no tools are required for hanging, work efficiency can be improved.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of essential parts of a ceiling hanging device for a video projector, etc., according to an embodiment of the present invention, Fig. 2 is a perspective view of the main body of the video projector, etc., and Fig. 3 is a perspective view of the hanging device. A front view and a side view showing the state, and FIG. 4 is a side view and a perspective view of a conventional example in a state where it is suspended from the ceiling. 1...Video projector body, 2...Angle, 3...Bolt insertion hole, 4...Top plate, 5...
Fixing bracket, 6... Hanging bracket, 7... Mounting hole,
8... Bolt, 9... Nut, 10... Locking part,
11...T-shaped notch, 12...Mounting bracket, 1
3...Protrusion, 15...Ceiling collar, 16...Flat washer, 17...Stopper metal fitting, 18...Screwed knob, 19...Stopper portion, 20...Sector-shaped hole, 21...Screw mounting hole , 22, 23... Angle adjustment hole, 24... Screw, 25... Ceiling.

Claims (1)

[Scope of Claims] 1. A protrusion having a screw inside, an arcuate fan-shaped hole with the protrusion as the center of the circle, and screw mounting holes in the horizontal direction are arranged on both sides, and a ceiling a mounting bracket having a fixing means for fixing the object to the hanging object; a plurality of pairs of angles having bolt insertion holes and arranged and fixed to the top plate of the object to be hung; A mounting angle consisting of a fixing bracket having an L-shaped cross section and a surface perpendicular to the top plate, a T-shaped notch, and an arcuate long hole at a position that fits the screw mounting hole of the mounting bracket. One surface provided with an adjustment hole, and another surface perpendicular to the one surface provided with a mounting hole and a locking portion of a fixing fitting for fixing perpendicularly to a plurality of angles. a hanging metal fitting having two surfaces, a bolt is inserted into a mounting hole of the hanging metal fitting and a bolt insertion hole of the angle to rotatably fix the hanging metal fitting, and a T-shaped notch of the hanging metal fitting is provided. is engaged with the projection to adjust the mounting angle, and then tightened and fixed to the projection that has internal screws provided on both sides of the mounting bracket using a threaded knob via the ceiling collar and the stopper metal fitting. Also, a ceiling hanging device for a video projector, etc., characterized in that the device is mounted by inserting and fixing a screw into the screw mounting hole through the mounting angle adjustment hole.