JP3947862B2 - Ceiling mount structure and projector fixed to the ceiling mount structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling mount structure and a method of using a projector, and in particular, suppresses leakage of noise caused by a cooling fan in an apparatus such as a projector to the outside so that the projector is suspended from a high place such as a ceiling. The present invention relates to a ceiling bracket structure that can be used and a method of using a projector.
[0002]
[Prior art]
For example, as disclosed in Japanese Patent Application Laid-Open No. 6-33542, the ceiling hanging bracket is a bracket that suspends or supports an object from a high place such as a ceiling.
[0003]
6A and 6B are diagrams showing a projector in a state of being suspended from the ceiling by suspending a conventional ceiling mount with the projector placed thereon, wherein FIG. 6A is a front view, and FIG. 6B is a side view. It is.
[0004]
A ceiling hanging angle adjusting bracket unit 33 is fixed to the ceiling 30 by bolts 31 and nuts 32. The ceiling-suspended bracket structure 36 fixes the projector 1 and the mounting portion 35 of the ceiling-mounted bracket 34 of the ceiling-suspended bracket structure 36 is inserted into the ceiling-hanging angle adjusting bracket unit 33 from the side, whereby the projector 1 is mounted on the ceiling. Use the unit suspended from
[0005]
Since the ceiling mount structure of the prior art has only a function for fixing the projector, the noise caused by the cooling fan in the projector built in the projector may be annoying.
[0006]
[Problems to be solved by the invention]
As explained above, the ceiling mount structure for fixing devices such as projectors of the prior art has only the function of fixing the device, so the noise caused by the cooling fan built in the device becomes annoying and installed. It may happen that the person in the room is uncomfortable.
[0007]
Accordingly, an object of the present invention is to provide a ceiling bracket structure in which noise due to a cooling fan incorporated in the apparatus is suppressed from leaking outside.
[0008]
Another object of the present invention is to provide a method of using a projector using the above-described ceiling-suspended bracket structure.
[0009]
[Means for Solving the Problems]
The ceiling suspension bracket of the present invention hangs and fixes the projector, and draws in air drawn from the air intake part of the projector from the front of the projector, and air exhausted from the air exhaust part of the projector And an exhaust duct for exhausting the rear of the projector, and a sound absorbing material is provided on the inner wall of the duct.
[0010]
The projector of the present invention is fixed by the above-described ceiling hanging bracket.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings. 1A and 1B are diagrams showing a ceiling hanging bracket structure according to an embodiment of the present invention, in which FIG. 1A is a plan view, FIG. 1B is a cross-sectional view of a section BB in FIG. 1A, and FIG. It is sectional drawing of CC part.
[0014]
A projector 1 such as a liquid crystal projector or a DLP projector is fixedly mounted on the ceiling-suspended bracket main body 2, and the projector 1 has a first intake portion 4 </ b> A, a second intake portion 4 </ b> B, and an exhaust portion 5.
[0015]
Each of the first intake section 4A and the second intake section 4B is provided with a cooling fan that sucks air in the room into the projector as cooling air. Further, the exhaust unit 5 is provided with a cooling fan that discharges warm cooling air to the room by cooling the inside of the projector. The cooling fan may be provided only in one of the intake part and the exhaust part.
[0016]
An intake duct portion 9 is provided on the intake side 7 of the ceiling hanger body 2 on which the projector 1 is placed and fixed, and an exhaust duct portion 10 is provided on the exhaust side 8 of the ceiling hanger body 2.
[0017]
First and second intake windows 14A and 14B are formed at locations of the intake duct portion 9 facing the first and second intake portions 4A and 4B of the projector 1, respectively, and the exhaust is positioned facing the exhaust portion 5. An exhaust window 15 is formed at a location of the duct portion 10 for use.
[0018]
Further, in the present invention, the sound absorbing material 3 such as sponge material is attached to the inner wall of each duct part, that is, the side wall and the bottom wall except for the window forming portion. Thereby, the noise of the cooling fan can be reduced in the duct. Further, since the sound absorbing material 3 is formed in advance so that it can be inserted into the inner wall, the ceiling hanging bracket structure can be easily assembled.
[0019]
And the respective ducts are formed in a hollow shape by covering the whole with the ceiling hanger cover 16.
[0020]
Next, the operation of FIG. 1 will be described with reference to FIG.
[0021]
In the projector ceiling installation state, the air 21 in front of the projector 1 is drawn into the duct of the intake duct 9 by the cooling fan, and a part of the air 21 passes through the path 22 to the first intake window 14A and the first intake section 4A. The projector 1 enters the projector 1 through the passages 23 and 26 while cooling the projector 1, enters the exhaust duct 10 through the exhaust window 15 and the exhaust window 15, and warmed air exhausts to the rear of the projector 1 through the route 27. 28.
[0022]
Further, the other part of the air that has entered the duct of the intake duct 9 passes through the paths 22 and 24 and enters the projector 1 through the second intake window 14B and the second intake section 4B, and the path 25 while cooling the projector. , 26 enters the exhaust duct 10 through the exhaust part 5 and the exhaust window 15, and the warmed air is exhausted 28 through the path 27 to the rear of the projector 1.
[0023]
At that time, the generated noise (wind noise from the cooling fan, etc.) hits the sound absorbing material (for example, sponge) 3 to attenuate the frequency of the sound and reduce the noise.
[0024]
As described above, according to the present invention, by providing the projector ceiling bracket with a duct function and a sound absorbing material, the noise due to the projector is reduced, and the ceiling bracket and the silencer device are combined, so that the cost can be reduced.
[0025]
Further, in this embodiment, since the duct is provided so that the intake side and the exhaust side to the projector are opposite to each other with respect to the projector (front and rear in the embodiment), new air ( It is possible to draw in air that has not been heated by the previous cooling), and the cooling efficiency of the projector can be increased.
[0026]
FIG. 3 is a perspective view showing an outline of assembly of the ceiling-suspended metal fitting structure of FIG. In FIG. 3, the ceiling mounting bracket 18 on the ceiling side is shown on the lower side in use.
[0027]
The sound absorbing material 3 formed in the duct portion of the ceiling hanger body 2 is inserted and pasted to the inner wall. The projector 1 is fixed to the ceiling hanger main body 2 by screwing the fixing companions (fixing screws) 11, 12, 13 to fixing insert nuts provided in the projector 1.
[0028]
With the projector 1 attached to the ceiling mount body 2, the ceiling mount cover 16 is attached to the side surface of the ceiling mount body 2 with screws, and the ceiling mount bracket 18 is mounted with the fixing screws 19. Is attached to the ceiling hanger body 2 with screws.
[0029]
FIG. 4 is a perspective view specifically showing a state in which the ceiling mounting bracket 18 is mounted on the ceiling hanging bracket main body 2. Although not shown in FIG. 3, the ceiling mounting bracket 18 is attached with a ceiling mounting bracket. A portion 41 is provided, and the attachment portion 41 is formed with a lateral cut 42 for insertion attachment and a longitudinal cut 43 at the tip of the lateral cut 42.
[0030]
5A and 5B are diagrams showing a state in which the ceiling-suspended bracket structure according to the embodiment of the present invention in which the projector is placed is suspended from the ceiling, where FIG. 5A is a side view and FIG. 5B is a perspective view.
[0031]
The ceiling hanging angle adjusting bracket unit 20 is fixed to the ceiling 30 by bolts (not shown) and nuts (not shown). In addition, a rod 45 for suspending the ceiling hanging bracket structure on which the projector is mounted protrudes in the ceiling hanging angle adjusting bracket unit 20 in the lateral direction (horizontal direction).
[0032]
The ceiling hanging bracket structure on which the projector is mounted is horizontally moved in the insertion direction 44 indicated by the arrow, the rod 45 is inserted into the lateral cut 42 of the mounting portion 41, and the rod 45 is positioned in the vertical cut 43. Is suspended from the ceiling.
[0033]
In the above-described embodiment, the ceiling-suspended bracket body 2, the ceiling-suspended bracket lid 16, and the ceiling-mounting bracket 18 are made of a pressed metal plate.
[0034]
The name of the present invention is the ceiling-suspended bracket structure and the word bracket is used, but some or all of the parts such as the ceiling-suspended bracket body 2, the ceiling-suspended bracket lid 16, the ceiling-mounting bracket 18 are made of resin. It is also possible to configure.
[0035]
In the embodiment, the projector is suspended from the ceiling of the room to be used. However, the present invention can also be applied to other ceiling hanging bracket structures that suspend a device that generates noise from a high place. is there.
[0036]
【The invention's effect】
As described above, the first effect of the present invention is that noise can be reduced only by attaching a device such as a projector to the ceiling mount.
[0037]
The reason for this is that an intake side duct and an exhaust side duct are provided in the ceiling hanging bracket, and the noise of the projector or the like is attenuated in the duct to reduce the noise.
[0038]
The second effect is that the cost can be reduced.
[0039]
The reason is that the cost can be reduced by having both the original function of the ceiling hanger and the sound deadening function.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a structure of a ceiling hanger according to an embodiment of the present invention, in which (A) is a plan view, (B) is a cross-sectional view of section BB in (A), and (C) is (A) It is sectional drawing of CC part of FIG.
FIG. 2 is a plan view showing a flow of cooling air in the embodiment of the present invention.
FIG. 3 is a perspective view showing an outline of assembly of the ceiling hanging bracket structure of FIG. 1;
FIG. 4 is a perspective view showing a state in which the ceiling mounting bracket according to the embodiment of the present invention is mounted on the ceiling hanging bracket main body.
FIGS. 5A and 5B are diagrams showing a state in which the ceiling hanging bracket structure according to the embodiment of the present invention in which a projector is placed is suspended from a ceiling, where FIG. 5A is a side view and FIG. 5B is a perspective view.
FIGS. 6A and 6B are diagrams showing a state in which a conventional ceiling mount fitting with a projector placed thereon is suspended from a ceiling, where FIG. 6A is a front view and FIG. 6B is a side view.
[Explanation of symbols]
1 Projector 2 Ceiling mount body 3 Sound absorbing material (noise absorbing material)
4A First air intake part 4B of the projector Second air intake part 5 of the projector 5 Air exhaust part 7 of the projector Air intake side 8 of the ceiling suspension bracket body Air exhaust side 9 of the ceiling suspension bracket body 10 Air intake duct portion 10 Air exhaust duct portions 11 to 13 Fixing companion (fixing screw)
14A First air intake window 14B of the ceiling suspension bracket main body Second air intake window 15 of the ceiling suspension bracket main body Exhaust window 16 of the ceiling suspension bracket body Ceiling suspension bracket lid 17 Fixing screw 18 Ceiling mounting bracket 19 Fixing screw 20 Ceiling Hanging angle adjusting bracket unit 21 to 28 Cooling air flow 30 Ceiling 31 Bolt 32 Nut 33 Ceiling hanging angle adjusting bracket unit 34 Ceiling mounting bracket 35 Ceiling mounting bracket mounting portion 36 Ceiling mounting bracket structure 41 Ceiling mounting Mounting part 42 of metal fittings Horizontal cut 43 Vertical cut 44 Insertion direction 45 Rod

Claims (4)

A projector is suspended and fixed, and an air intake duct that draws in air drawn from the air intake part of the projector from the front of the projector, and air that exhausts air exhausted from the air exhaust part of the projector to the rear of the projector A ceiling hanging bracket provided with a duct and a sound absorbing material provided on the inner wall of the duct. The ceiling hanging bracket according to claim 1, wherein the sound absorbing material is formed to be insertable into the inner wall. The ceiling-mounted metal fitting according to any one of claims 1 to 2, wherein the sound absorbing material is a sponge. The projector fixed with the said ceiling-hanging metal fitting of any one of Claims 1 thru | or 3.

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