KR20060058357A - Bracket structure for fixing ceiling type projector and fixing method using the same - Google Patents

Abstract

The present invention is to apply a plurality of brackets and multiple hinge types to fix the projector to the ceiling, to freely move the projector image screen in the desired direction or to easily adjust the projector to any projection angle of up, down, left and right It relates to a bracket structure and a method of fixing a projector ceiling using the same. Projector ceiling fixing bracket structure according to the present invention is a ceiling fixing bracket of approximately U-letters fixed to the ceiling, a first connection bracket fixed to the lower side of the ceiling fixing bracket, and the first connection bracket and A hinged second connection bracket and a projector connection bracket hinged to the second connection bracket. The vertical movements of the first and second connection brackets and the vertical movement of the second and second connection brackets and the projector connection brackets move up and down, respectively, with a phase difference of about 90 degrees horizontally. The connecting brackets can rotate together. In addition, the ceiling fixing bracket and the first connection bracket is connected through a height adjustment pipe, it is possible to adjust the vertical height.

Projector, ceiling, hinge, slot, bolt, nut, fixing screw

Description

Bracket structure for fixing ceiling type projector and fixing method using the same}             

1 is a view showing a state in which the ceiling fixing bracket according to the present invention fixed to the ceiling.

Figure 2a is an exploded view of the ceiling fixing bracket and the first connection bracket in accordance with the present invention.

2B is an exploded view of the ceiling fixing bracket and the first connection bracket according to another embodiment of the present invention.

3 is an exploded view of the first connecting bracket and the second connecting bracket according to the present invention.

4 is an exploded view of the second connection bracket and the projector connection bracket according to the present invention.

5 is a view showing a state in which the projector is fixed to the projector connection and the bracket according to the invention.

6 is a view showing a state in which the projector is fixed to the ceiling using the bracket structure for fixing the projector ceiling according to the present invention.

7 is an exploded perspective view illustrating a structure of a bracket for fixing a projector ceiling having a height adjustment pipe according to another embodiment of the present invention.

8 is a sequential flowchart illustrating a method of fixing a projector to a ceiling according to the present invention.

Explanation of symbols on the main parts of the drawings

100: bracket for fixing the projector ceiling according to the invention

10: ceiling 11: v

12: Set screw 13: Nut

20: ceiling fixing bracket 21, 31, 41: large hole

22: fixed part 23: long hole

30: first connection bracket

32: first hinge coupling portion 33: the first hinge hole

34, 54: rotation angle adjustment hole 40: 2nd connection bracket

42: second hinge coupling portion

43: second hinge hole 44, 47: fixing hole

45: third hinge coupling portion 46: the third hinge hole

50: Projector connection bracket 51: Square hole

52: fourth hinge coupling portion 53: fourth hinge hole

60: Projector 62: Connection Pin

70: flange thread 80,90: hinge bolt

100, 200: height adjustment pipe

The present invention relates to a bracket structure for fixing a projector ceiling and a method of fixing a projector ceiling using the same, and more particularly, by applying a plurality of brackets and multiple hinge types to fix various projectors to a ceiling, a desired image screen of the projector is desired. The present invention relates to a bracket structure for fixing a projector ceiling that can be freely moved in a direction or to simply adjust any projection angle in up, down, left and right, and a projector ceiling fixing method using the same.

In general, a projector is an optical device that enlarges and projects photographs, pictures, characters, etc. on a slide and transparent paper onto a screen through a lens and simultaneously shows them to many people. There is a projector (OHP), which is widely used for education, publicity, and entertainment.

In addition, due to the recent trend of larger displays due to the development of digital home appliances, various types of projectors have been installed for fixing the ceiling due to the rapid increase in the demand for projectors.

In general, in order to fix such various types of projectors to the ceiling, after anchoring or fixing the anchor bolts to the ceiling concrete using a hammer drill or the like, the projector fixing bracket is fixed to the anchor bolts and the projector is mounted again. It is completed by fixing it to the bracket.

In this case, the distance between the projector and the screen should be calculated by comparing the screen size of the projector with the specifications of the projector, and the projector should be installed and fixed after confirming the exact position of the center of the screen and the lens center of the projector.

However, in the ceiling installation structure of the conventional projector, since the square hole angle of the video screen is completely fixed in the projector fixed to the ceiling through the anchor bolt and the bracket, it is difficult to adjust the angle to the video screen in the other direction. There was a fairly difficult problem.

In addition, the conventional projector installation structure as described above was almost impossible to freely move the image screen in a desired direction or simply adjust it to any desired projection angle of up, down, left and right.

In addition, when the angle of the ceiling to which the projector is to be installed is inclined, it is difficult to install the projector through the same anchor bolt and bracket as in the prior art, and there is a limit in simply arranging various lines of a complicated projector. There are several problems.

 The present invention has been made to solve the above-described problems, the object of the present invention is not only easy to adjust the angle of the image screen of the projector fixed to the ceiling, but also any desired projection angle such as 360-degree rotation in the vertical direction It is to provide a bracket structure for fixing the ceiling of the projector which can be easily adjusted.

Another object of the present invention is to provide a bracket structure for fixing the projector ceiling that can be installed easily even when the angle of the ceiling to install the projector is tilted because the vertical angle of the projector can be adjusted.

Still another object of the present invention is to provide a ceiling fixing bracket structure which can easily arrange various lines of a complicated projector after installation of the projector.

Still another object of the present invention is to provide a ceiling fixing bracket structure that can easily attach and detach a plurality of brackets.

Still another object of the present invention is to provide a ceiling fixing bracket structure that can easily adjust the vertical height of the projector.

Still another object of the present invention is to provide a ceiling fixing method of a projector according to the above objects.

Ceiling fixing bracket structure according to the present invention for achieving the above object of the present invention is a substantially flat plate-shaped ceiling fixing bracket having a large hole in the center, fixed to the ceiling, and approximately A rectangular plate shape has a large hole in the center, and is connected to the lower side of the ceiling fixing bracket, and has a first hinge coupling portion having a first hinge hole formed by protruding downwardly on one of two opposite sides. The first connecting bracket has a large hole in the center in a substantially rectangular plate shape, and one of two mutually opposing side surfaces is protruded upward on one of the hinge parts to pivot with the first hinge hole of the first hinge coupling portion. A second hinge coupling portion having a second hinge hole formed therein, wherein the second hinge coupling portion extends downwardly on opposite sides of the second hinge coupling portion not formed; And a second connecting bracket having a third hinge coupling portion having a third hinge hole formed thereon, and having a substantially rectangular hole in the center as a substantially rectangular plate, wherein two inner surfaces of the two mutually opposite rectangular holes are upwards on one of them. And a projector connection bracket having a fourth hinge coupling part having a fourth hinge hole for extending and protruding to hinge rotatably with the third hinge hole of the third hinge coupling part.

In addition, the upper portion of the U-letter (single) type ceiling fixing bracket is formed with a fixed portion formed with a plurality of fixing holes extending horizontally on both sides, it is preferable that the bolt or screw coupled to the ceiling through the fixing hole. .

In addition, the first and second hinge holes and the third and fourth hinge holes are hinged by hinge bolts and nuts, respectively, and the first and second hinge coupling parts and the third and fourth hinge coupling parts, respectively. Each may be provided with a rotation angle adjustment hole for adjusting the rotation angle by the hinge coupling.

In addition, the cylindrical male threaded portion and the ring-shaped female threaded portion of the lower end of the flanged screw penetrate the hole of the first connection bracket in a state where the flange portion of the flange screw is seated on the center upper surface through the hole of the ceiling fixing bracket. It is preferable that the ceiling fixing bracket and the first connection bracket are connected to each other so as to be horizontally rotatable.

In addition, a plurality of holes are formed along the edge of the projector connection bracket, the holes are coupled through bolts or screws corresponding to other holes of the plurality of connection pins connected to the projector, and the various wirings from the projector are It can be connected inside the ceiling through each central hole of a projector connection bracket, first and second connection brackets and ceiling fixing brackets.

In addition, the ceiling fixing bracket and the first connection bracket may be connected via a height adjustment pipe, wherein the height adjustment pipe is formed on the top of the central flange of the ceiling fixing bracket is formed in a generally disk-shaped flange on the top And a first height adjustment pipe having a first height adjustment hole facing each other at a predetermined lower portion thereof, and fitted into the lower end of the first height adjustment pipe, and having a bolt and a nut in the mutually opposite first height adjustment holes. It consists of a second height adjustment pipe having an opposing plurality of second height adjustment holes having different heights joined through.

In addition, it is preferable that a coupling plate having a plurality of fixing holes is formed at a lower end of the second height adjustment pipe so as to be coupled to the fixing hole corresponding to the upper portion of the first connection bracket through a bolt or a screw.

The projector ceiling fixing method according to the present invention for achieving the above object of the present invention, the step of fixing the ceiling fixing bracket having a large hole in the center of the approximately U-letter (speaking) type to the ceiling, and the ceiling fixing bracket The cylindrical male threaded portion of the lower flange and the female threaded portion of the ring shape are formed in the central lower surface where the large hole of the first connecting bracket is formed in a substantially square plate while the flange portion of the flange screw is seated on the upper surface of the center where the large hole of Combining and fixing the ceiling fixing bracket and the first connection bracket so as to be rotatable in a horizontal direction, and the first protruding downward from one of two opposite sides of the first connection bracket The first hinge coupling portion having a hinge hole and the two mutually opposite sides of the second connecting bracket extend upwardly on one of them. Allowing the second hinge coupling portion having a second hinge hole to hinge, so that the first connecting bracket and the second connecting bracket can be rotated up and down, and the second hinge coupling portion of the second connecting bracket is not formed The two hinged inner sides of the third hinge engaging portion having a third hinge hole formed by protruding downwards on opposite sides of the mutually opposite sides, and the mutually opposite square holes of the projector connection bracket having a substantially rectangular hole in the center as a substantially rectangular plate shape. The fourth hinge engaging portion having a fourth hinge hole protruding upwardly to one of the hinge is coupled to the hinge so that the second connection bracket and the projector connection bracket can be pivoted up and down, and the edge of the projector connection bracket A plurality of holes are formed at one end of the connecting pin and the plurality of holes through the bolt and nut Characterized the other side of the projector connection pin is slightly bent downwardly that its end has a plurality of fixing holes is formed composed of a coupling fixed to the fixed holes in a predetermined position of the upper projector screws.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a state in which the ceiling fixing bracket according to the present invention fixed to the ceiling, Figure 2a is an exploded view of the ceiling fixing bracket and the first connection bracket according to the present invention, Figure 2b is another embodiment of the present invention 3 is an exploded view of the ceiling fixing bracket and the first connection bracket according to the present invention, FIG. 3 is an exploded view of the first connection bracket and the second connection bracket according to the present invention, and FIG. 4 is a view of the second connection bracket according to the present invention. 5 is an exploded view of the projector connection bracket, and FIG. 5 is a view illustrating a state in which a projector is fixed to a projector connection and a bracket according to the present invention, and FIG. 6 is a view of a projector ceiling using a bracket structure for fixing a projector ceiling according to the present invention. It will be described with the drawings showing a state fixed to for convenience of description.

As shown, the ceiling fixing projector bracket 100 according to the present invention is a ceiling fixing bracket (20) of approximately U-letters (fixed) fixed to the ceiling (10), the ceiling of the bracket 20 A first connection bracket 30 fixed to the lower side, a second connection bracket 40 hinged to the first connection bracket 30, and a projector connection bracket hinged to the second connection bracket 40; 50). Here, the material of the bracket according to the present invention is preferably a metal material for easily supporting the projector 60, but is not limited to the material in the present invention, any material can be used as long as it can support the projector.

 First, as shown in FIG. 1, the ceiling fixing bracket 20 has a substantially plate shape and has a substantially U-letter shape. In addition, a large hole 21 is formed in substantially the center, and after the installation work of the projector 60, various wires 61 are passed through to arrange the wiring after the work is outstanding. The shape of the hole 21 is preferably circular, but is not limited to the shape.

In addition, two plate-like fixing portions 22 are formed on the upper side of the U-letter shaped ceiling fixing bracket 20 which are horizontally extended to both outer sides and are integrally formed. Two fixing holes 23 are formed in a line in each fixing part 22, and when fixing to the ceiling 10, the bolts 11 and nuts 13 or fixing screws through the above-mentioned holes 23 are fixed. 12, the ceiling fixing bracket 20 is fixed to the ceiling 10. The bolt is preferably a barbed bolt, anchor bolt, etc., but is not limited to the kind.

As shown in Fig. 2A, the first connecting bracket 30 is substantially rectangular in shape and has a large hole 31 in the center thereof, which communicates with the hole 21 of the ceiling fixing bracket 20, so that the projector ( Various wires 61 are passed after the installation work 60 to make the arrangement of the wiring after the work stand out.

In addition, the ceiling fixing bracket 20 and the first connecting bracket 30 are connected to each other using the flange screw 70 through the hole 21 of the ceiling fixing bracket 20 and the hole 31 of the first connecting bracket 30. It is fixedly connected to be rotatable with each other. That is, in the state where the flange portion 71 of the flange screw 70 is seated on the upper surface of the center of the ceiling fixing bracket 20, the cylindrical male thread portion 72 and the ring-shaped female thread portion 73 are formed in the first connection bracket ( 30) it is possible to rotate 360 ° in the horizontal direction by being coupled at the bottom of the center. In addition, a plurality of fixing protrusions 74 are formed along a circumferential direction at a predetermined position on the lower surface of the flange portion 71, and the ceiling fixing bracket 20 corresponds to the plurality of fixing protrusions 74. A plurality of fixing grooves 75 spaced apart in a circle at a predetermined distance are formed. Therefore, the plurality of fixing protrusions 74 of the flange portion 71 and the plurality of fixing grooves 75 of the ceiling fixing bracket 20 are configured to be sequentially coupled, whereby the ceiling fixing bracket 20 ) And the first connection bracket 30 are sequentially fixed while being horizontally rotated with each other.

As such, the ceiling fixing bracket 20 and the first connection bracket are coupled to each other by using the flange screw 70, so that the female screw portion 73 and the male screw portion 72, the fixing protrusion 74, and the fixing groove ( It is possible to simply adjust the rotation angle in the horizontal direction using the 75), it is possible to later rotate the projector 60 at any angle in the horizontal direction.

In addition, one of two opposite sides of the first connection bracket 30 is protruded downward to form two first hinge coupling portions 32. A first hinge hole 33 is formed in substantially the center of the first hinge coupling portion, and a rotation angle adjustment long hole 34 is also formed at a predetermined position from the first hinge hole 33. The rotation angle adjustment hole 34 is preferably formed in any one of the two first hinge coupling portion (32). The first hinge coupler is for hinge coupling with the second connection bracket 40 to be described later, and will be described in more detail in the description of the second connection bracket 40.

Figure 2b is an exploded view of the ceiling fixing bracket 20 and the first connection bracket 30 according to another embodiment of the present invention, the coupling structure of the ceiling fixing bracket 20 and the first connection bracket 30 is shown in FIG. Except for using the fixing screw and the fixing hole instead of the flange screw of 2a is substantially the same as the structure of Figure 2a, only the difference will be described.

 As shown in FIG. 2B, instead of the ceiling fixing bracket 20 and the first connecting bracket 30 being coupled to be horizontally rotatable using a flange screw 70 (see FIG. 2A), U- described above. On both mutually opposing side surfaces below the ceiling fixing bracket 20 in the form of a hexagram, a locking portion 25 having a horizontal locking hole 24 protruding downward is formed, and a first connection bracket ( On both sides of the two mutually opposing side surfaces of the two opposite sides of the side 30, the engaging jaws 35 extending outwardly are formed on both side surfaces of the two engaging surfaces 32, the engaging holes of the engaging portions 25 described above. 24 and the locking step 35 is fitted to be coupled.

In addition, fixing screw holes 26 and 36 are formed in the two locking portions 25 of the ceiling fixing bracket 20 and the two locking jaws 35 of the first connection bracket 30, respectively. The ceiling fixing bracket 20 and the first connection bracket 30 are completely fixed by the fixing screw 27. Of course, the drawing shows a coupling example of the fixing screw and the fixing hole, it is also possible to combine the bolt and nut, etc., in the present invention is not limited to the coupling structure.

As shown in Fig. 3, the second connecting bracket 40 has a substantially rectangular plate shape, and a large hole 41 is also formed in the center thereof, so that various lines 61 are allowed to pass through after the installation of the projector 60. The arrangement of wiring after work is outstanding.

In addition, the second connection bracket 40 is integrally formed with a second hinge coupling portion 42 which protrudes upward on one of two opposite sides. A second hinge hole 43 is formed in substantially the center of the second hinge coupling portion, and a fixing hole 44 is also formed at a predetermined position from the second hinge hole 43. The second hinge hole 43 of the second hinge coupling part 42 includes the first hinge hole 33 and the hinge bolt 80 of the first hinge coupling part 32 of the first connection bracket 30. And the nut 81 is hinged so that the first connecting bracket 30 and the second connecting bracket 40 can be pivoted up and down.

As such, since the first connection bracket 30 and the second connection bracket 40 are hinged, the projector 60 connected to the first connection bracket 30 and the second connection bracket 40 can be vertically moved to adjust the projection angle up and down arbitrarily.

In addition, by fixing the fixing screw 82 in the rotation angle adjustment hole 34 of the first connection bracket 30 and the fixing hole 44 of the second connection bracket 40, the rotation angle adjustment hole 34 is Accordingly, the mutual movement of the second connection bracket 30 and the second connection bracket 40 is made, and thus the vertical movement angle adjustment and the range of the projector 60 are determined.

In addition, two third hinge coupling parts 45 are formed by protruding downwards of two opposing side surfaces on which two second hinge coupling parts 42 are not formed. A third hinge hole 46 is formed at approximately the center of the third hinge coupling part 45, and a fixing hole 47 is also formed at a predetermined position from the third hinge hole 46. The fixing hole 47 is preferably formed in any one of the two third hinge coupling portion 45. The third hinge coupling unit is for hinge coupling with the projector connection bracket 50 to be described later, and will be described in more detail in the description of the projector connection bracket 50.

As shown in FIG. 4, the projector connection bracket 50 is formed in a substantially rectangular plate shape and has a substantially rectangular hole 51 at the center thereof. The arrangement of wiring is outstanding. In the illustrated example, the shape of the hole 51 is rectangular, but in the present invention, a circular or pentagonal shape is also possible, but is not limited thereto.

In addition, the projector connecting bracket 50 is integrally formed with a fourth hinge coupling portion 52 which protrudes upward on one of two inner surfaces of the two square holes 51 facing each other. A fourth hinge hole 53 is formed at substantially the center of the fourth hinge coupler 52, and a rotation angle adjustment hole 54 is also formed and fixed at a predetermined position from the fourth hinge hole 53. It is possible to fix it to the hole 47 with the fixing screw 92. The fourth hinge hole 53 of the fourth hinge coupler 52 is the third hinge hole 46 and the hinge bolt 90 of the third hinge coupler 45 of the second connection bracket 40. And the nut 91 to be hinged so that the second connection bracket 40 and the projector connection bracket 50 can be pivoted up and down.

As such, since the second connection bracket 40 and the projector connection bracket 40 are hinged, the projector 60 connected to the projector 60 can be vertically moved, and thus the projection angle can be arbitrarily adjusted up and down. Here, the vertical movement of the first connecting bracket 30 and the second connecting bracket 40 and the vertical movement of the second connecting bracket 40 and the projector connecting bracket 50 are horizontally different in phase angles of about 90 degrees. Each one moves upward and downward, and also the ceiling fixing bracket 20 and the first connection bracket 30 can be rotated with each other, so that the projector 60 can be easily adjusted to any desired projection angle on the left, right, up and left sides. Will be. In addition, even when the ceiling 10 itself is inclined, the vertical adjustment is easy, so that the projector 60 can be easily installed even on the inclined ceiling.

In addition, a plurality of long holes 55 are formed along the edge of the projector connection bracket 50. The plurality of long holes 55 will be described later as holes for fixing to the projector 60 through the connecting pin 62.

As shown in FIG. 5, the projector connection pin 62 has a body portion having a long hole 63 extending in one direction at one side thereof, and the other side is slightly bent downward so that a fixing hole 66 is formed at the end thereof. The formed screw engaging portion 64 is formed. The long hole 55 of the projector connecting bracket 50 and the long hole 63 of the projector connecting pin 62 are coupled to each other through the bolt 56 and the nut 57 and the fixing hole of the screw coupling part 64. By combining the fixing hole 65 of the projector 66 and the fixing screw 65, the coupling between the projector connecting bracket 50 and the projector 60 is completed. Here, the long holes 55 of the projector connecting bracket 50 and the long holes 63 of the projector connecting pin 62 are formed to be compatible with and fixed to all the projectors. That is, although the positions of the plurality of fixing holes 67 formed on the projector are actually different for each projector, the plurality of fixing holes 67 having different positions are formed by the two long holes 55 and 63 formed long. 62) can be easily fixed.

As shown in FIG. 6, various types of projectors 60 may be mounted on the ceiling through the ceiling fixing bracket 20, the first and second connecting brackets 30, and the second connecting bracket 40 as described above. 10) to be fixed. In addition, after the installation work by connecting the various lines 61 into the ceiling through a large hole formed in the center of each bracket, the arrangement of the wiring after the work is outstanding. In addition, the phase difference of about 90 degrees horizontally by the hinge coupling of the first connecting bracket 30 and the second connecting bracket 40 and the hinge coupling of the second connecting bracket 40 and the projector connecting bracket 50. It is to be able to move up and down, respectively, and to be rotated to each other by coupling the flange screws of the ceiling fixing bracket 20 and the first connection bracket 30, so that the projector 60 can be It can be easily adjusted to any projection angle.

7 is an exploded perspective view illustrating a structure of a bracket for fixing a projector ceiling having a height adjustment pipe according to another embodiment of the present invention. The projector ceiling fixing bracket structure shown in FIG. 7 is substantially the same as that of the ceiling fixing bracket 20 and the first connection bracket 30 except that the height adjustment pipes 100 and 200 are connected. The same as that of FIG. 6 will be described based on the difference.

As shown in FIG. 7, the first height adjustment pipe 100 has an approximately disk-shaped flange portion 101 formed at an upper end thereof to be seated on a central upper surface of the ceiling fixing bracket 20, and has a first height. The second height adjustment pipe 200 is fitted into the lower end of the adjustment pipe 100. Here, a plurality of opposing second height adjustment holes having different heights of the second height adjustment pipes fitted into each other are formed at a predetermined position of the lower portion of the first height adjustment pipes. Corresponding to 203, the lengths of the height adjustment pipes 100 and 200 are adjusted by fixing through bolts and nuts (not shown).

Meanwhile, a coupling plate 201 having a plurality of fixing holes 202 is formed at a lower end of the second height adjustment pipe 200 to fix the fixing hole corresponding to the upper portion of the first connection bracket 30 (not shown in the drawing). It is coupled through a bolt or screw (not shown).

By using the height adjustment pipe having the flange in this way, the height of the projector 60 can be adjusted, as well as the ceiling fixing bracket 20 and the first connection bracket 30 are mutually rotated by the flange portion 101. It is fixedly connected so that the projector 60 can also be rotated horizontally. In addition, the number of the second height adjustment holes 203 is shown as three in the illustrated example, but is not limited to the number in the present invention, the ceiling fixing frame 100 and the height adjustment pipe 200 described above. The length is not limited but may be up to about 50-100 cm. In addition, the material of the first and second height adjustment pipes 100 and 200 is preferably light aluminum, but is not limited to the material in the present invention.

In addition, a plurality of fixing protrusions (not shown) are formed at predetermined positions on the lower surface of the flange portion 101 in the circumferential direction, and a predetermined distance is provided to the ceiling fixing bracket 20 corresponding to the plurality of fixing protrusions. By forming a plurality of fixing grooves (not shown) spaced in a circular shape with a plurality of fixing projections and the plurality of fixing grooves can be temporarily temporarily combined in sequence to the ceiling fixing bracket 20 and 1 connecting brackets 30 may be fixed while sequentially rotating horizontally with each other.

8 is a sequential flowchart illustrating a method of fixing a projector to a ceiling according to the present invention, which will be described with reference to FIGS. 1 to 7 for convenience of description.

The method of fixing the projector to the ceiling according to the present invention includes fixing the ceiling fixing bracket 20 (S100), fixing the first connecting bracket 30 (S200), and fixing the second connecting bracket 40 ( S300, the step of fixing the projector connection bracket 50 (S400), and the step of fixing the projector 60 (S500). Here, each of the above steps may be made in a different order from each other, in the present invention is not limited to the order of each step.

First, in the fixing step (S100) of the ceiling fixing bracket 20, the two fixing parts 22 and the ceiling which are integrally formed by extending horizontally to both outer sides of the upper part of the ceiling fixing bracket 20 having a substantially U-letter type. (10) is fixed through the bolt (11) and the nut (13) or fixing screw (12).

In the fixing step (S200) of the first connection bracket 30, in the state in which the flange portion 71 of the flange screw 70 is seated on the center upper surface where the large hole of the ceiling fixing bracket 20 is formed. The cylindrical male threaded portion 72 and the ring-shaped female threaded portion 73 are joined at the center lower surface where the large hole of the first connecting bracket 30 having a substantially rectangular plate is formed, thereby securing the ceiling fixing bracket 20 and the first connecting bracket. 30 are fixed to be rotatable in the horizontal direction.

Of course, as shown in Figure 2b, instead of using the flange screws 70, two locking portions of the ceiling fixing bracket 20 and the two locking jaws of the first connecting bracket 30 described above. Fixing screw holes 26 and 36 are formed in the 35, respectively, and the ceiling fixing bracket 20 and the first connection bracket 30 may be completely fixed by the fixing screw 27.

In the fixing step (S300) of the second connecting bracket 40, one of the two mutually opposing side surfaces of the first connecting bracket 20 is extended to one of the first hinge hole 33 protruding downwardly. A second hinge coupling portion having a first hinge coupling portion 32 having a first hinge coupling portion 32 and a second hinge hole 43 extending upwardly in one of two opposite sides of the second connecting bracket 40; 42 is hinged through the hinge bolt 80 and the nut 81 so that the first connecting bracket 30 and the second connecting bracket 40 can be rotated up and down.

In the fixing step (S400) of the projector connection bracket 50, the two second hinge coupling portions 42 opposite to the second connection bracket 40 are extended and protruded to the lower sides of the opposite sides not formed. Of the third hinge coupling portion 45 having the third hinge hole 46 formed therebetween, and the rectangular hole 51 facing each other of the projector connecting bracket 50 having the substantially rectangular hole 51 in the center as the substantially rectangular plate shape. One of the two inner surfaces has a fourth hinge coupling portion 52 having a fourth hinge hole 53 protruding upward on one of the two inner surfaces so that the second hinge surface is hinged through the hinge bolt 90 and the nut 91. The connecting bracket 40 and the projector connecting bracket 50 are configured to be rotatable up and down.

In the fixing of the projector 60 (S500), the plurality of long holes 63 formed at one end of the plurality of long holes 55 and the connecting pin 62 along the edge of the projector connection bracket 50 are bolts 56. And a nut 57, and the other side of the projector connecting pin 62 is slightly bent downward so that a plurality of fixing holes 66 are formed at the ends thereof to fix the predetermined position above the projector 60. By coupling the hole 67 with the fixing screw 65, the projector connection bracket 50 and the projector 60 are engaged. Here, the long holes 55 of the projector connecting bracket 50 and the long holes 63 of the projector connecting pin 62 are formed to be compatible with and fixed to all the projectors. That is, although the positions of the plurality of fixing holes 67 formed on the projector are actually different for each projector, the plurality of fixing holes 67 having different positions are formed by the two long holes 55 and 63 formed long. 62) can be easily fixed.

On the other hand, between the fixing step (S100) and the fixing step (S200) of the ceiling fixing bracket 20, the ceiling fixing bracket 20 and the first connection bracket 30 between the height adjustment pipe 100 It may include the step of connecting through the (200).

That is, the first height adjustment pipe 100 has a disk portion flange portion 101 is formed in the upper end is seated on the center upper surface of the ceiling fixing bracket 20, the lower end of the first height adjustment pipe 100 The second height adjustment pipe 200 is fitted inside. Here, a plurality of opposing second height adjustment holes having different heights of the second height adjustment pipes fitted into each other are formed at a predetermined position of the lower portion of the first height adjustment pipes. Corresponding to 203, the lengths of the height adjustment pipes 100 and 200 are adjusted by fixing through bolts and nuts (not shown).

In addition, a coupling plate 201 having a plurality of fixing holes 202 is formed at a lower end of the second height adjustment pipe 200 to fix the fixing hole corresponding to the upper portion of the first connection bracket 30 (not shown in the drawing). To be coupled through a bolt or screw (not shown).

Although the present invention has been described in detail with reference to preferred embodiments, it is not intended to limit the present invention but merely to illustrate the present invention, and various changes and modifications can be made by those skilled in the art without departing from the gist and scope of the present invention. Of course, this is also within the scope of the present invention.

As described above, the projector bracket structure for fixing the ceiling and the projector ceiling fixing method using the same according to the present invention, by applying a plurality of brackets and multiple hinge type to fix the projector to the ceiling, the image screen of the projector to the desired direction It can move freely or simply adjust to any projection angle from up, down, left and right, can easily arrange various wires of a complicated projector after installation of the projector, and can easily attach and remove multiple brackets. There is an effect that can easily adjust the vertical height.

Claims (16)

A substantially U-shaped ceiling fixing bracket fixed to the ceiling with a large hole in the center, substantially plate-shaped, The first hinge coupling portion having a large hole in the center having a large rectangular plate shape, connected to the lower side of the ceiling fixing bracket, and having a first hinge hole formed by protruding downwardly on one of two opposing sides. Having a first connection bracket, It is a substantially rectangular plate having a large hole in the center, one of the two opposite sides of each other is protruded upwards and the second hinge hole for hinge coupling so as to pivot with the first hinge hole of the first hinge coupling portion A second connection bracket having a second hinge coupling portion having a third hinge coupling portion having a third hinge hole formed by protruding downwardly from opposite sides of the second hinge coupling portion not formed; It is a substantially rectangular plate having a substantially rectangular hole in the center, one of the two inner surface of the mutually opposing square hole is protruded upward in one of the hinge hinge for rotatable with the third hinge hole of the third hinge coupling portion Projector bracket structure for fixing the ceiling, characterized in that consisting of the projector connection bracket having a fourth hinge coupling portion formed with a fourth hinge hole The method of claim 1, The upper portion of the U-letter (single) type ceiling fixing bracket is formed with a fixed portion formed with a plurality of fixing holes extending horizontally on both sides, characterized in that coupled to the ceiling by bolts or screws through the fixing holes. Projector bracket structure for fixing the ceiling. The method of claim 1, And the first and second hinge holes and the third and fourth hinge holes are hinged by hinge bolts and nuts, respectively. The method of claim 1, Projector bracket structure for fixing the ceiling, characterized in that each of the first and second hinge coupling portion and the third and fourth hinge coupling portion is formed with a rotation angle adjustment hole for adjusting the rotation angle by the hinge coupling. The method according to any one of claims 1 to 4, Interlocking opposite sides of the lower side of the U-letter shaped ceiling fixing bracket are provided with a locking portion having a horizontally extending locking hole protruding downward, and among two opposite sides of the first connecting bracket. On both sides of the two side surfaces in which the first hinge coupling portion is not formed, a locking jaw extending outwardly is formed so that the locking hole 24 and the locking jaw 35 of the locking portion 25 are fitted to each other and screwed together. Projector bracket structure for fixing the ceiling. The method according to any one of claims 1 to 4, The cylindrical male threaded portion and the ring-shaped female threaded portion of the lower end of the flanged screw penetrate the hole of the first connection bracket while the flanged portion of the flanged screw is seated on the center upper surface through the hole of the ceiling fixing bracket. Projector bracket structure for fixing the ceiling, characterized in that coupled to the central lower surface and the ceiling fixing bracket and the first connection bracket is connected so as to rotate horizontally mutually. The method of claim 6, A plurality of fixing protrusions are formed at a predetermined position of the lower surface of the flange portion, and a plurality of fixing grooves spaced in a circular shape at a predetermined distance are formed in the ceiling fixing bracket corresponding thereto. Projector bracket structure for fixing the ceiling, characterized in that the ceiling fixing bracket and the first connection bracket is fixed while being sequentially horizontally rotated to each other by the sequential coupling of a plurality of fixing grooves of the ceiling fixing bracket. The method according to any one of claims 1 to 4, A plurality of holes are formed along the edge of the projector connection bracket, the holes are coupled via a bolt or screw corresponding to the other holes of the plurality of connection pins connected to the projector. The method according to any one of claims 1 to 4, Projector bracket structure for fixing the ceiling, characterized in that the wiring from the projector is connected to the inside of the ceiling through the central hole of the projector connection bracket, the first and second connection bracket and the ceiling fixing bracket. The method according to any one of claims 1 to 4, And the ceiling fixing bracket and the first connection bracket are connected via a height adjustment pipe. The method of claim 10, The height adjustment pipe, A first disc-shaped flange formed at an upper end thereof and seated on a central upper surface of the ceiling fixing bracket, and having a first height adjusting hole having a first height adjusting hole facing each other at a lower portion thereof; A second height adjustment pipe fitted into a lower end of the first height adjustment pipe, the second height adjustment pipe having a plurality of opposing second height adjustment holes having different heights coupled through bolts and nuts to the mutually opposite first height adjustment holes; Projector bracket structure for fixing the ceiling, characterized in that consisting of. The method of claim 11, Projector bracket structure for fixing the ceiling, characterized in that the bottom of the second height adjustment pipe is formed with a coupling plate having a plurality of fixing holes are coupled to the fixing hole corresponding to the upper portion of the first connecting bracket through a bolt or a screw. . Fixing the ceiling fixing bracket to the ceiling with a large hole in the center, In the state where the flange portion of the flange screw is seated on the center upper surface where the large hole of the ceiling fixing bracket is formed, the large hole of the first connection bracket having a substantially rectangular plate is formed in the cylindrical male portion of the lower flange and the female screw portion of the ring shape. A step of fixing the ceiling fixing bracket and the first connection bracket so as to be mutually rotatable in a horizontal direction by combining at a formed central lower surface; One of two mutually opposing side surfaces of the first connecting bracket may include a first hinge coupling part having a first hinge hole protruding downwardly under one of them, and one of two mutually opposing side surfaces of the second connecting bracket. Allowing the first hinge bracket and the second coupling bracket to pivot up and down by hinge coupling a second hinge coupling part having a second hinge hole protruding upwardly to the first coupling bracket; A third hinge coupling portion having a third hinge hole formed by protruding downwardly from the opposite sides of the second connecting bracket, in which the opposite second hinge coupling portions are not formed, and a substantially rectangular hole in the center as a substantially rectangular plate; Fourth hinge engaging portion having a fourth hinge hole protruding upward from one of the two inner side surfaces of the mutually opposite square holes of the projector connecting bracket having a hinge is coupled to the second connecting bracket and the projector connecting bracket Combining the upper and lower pivots, A plurality of holes formed at one end of the connection pins and the plurality of holes along the edge of the projector connection bracket is coupled through a bolt and a nut, and the other side of the projector connection pin is slightly bent downwards and a plurality of fixing holes at the ends thereof. The formed ceiling fixing method of the projector, characterized in that consisting of the step of engaging the fixing holes in the predetermined position on the upper side of the projector with a fixing screw The method of claim 13, Each of the above steps are performed in a different order from each other. The method according to claim 13 or 14, And each of the first and second hinge coupling parts and the third and fourth hinge coupling parts is provided with a rotation angle adjustment hole for adjusting a rotation angle by hinge coupling. The method according to claim 13 or 14, And the ceiling fixing bracket and the first connection bracket are connected via a height adjustment pipe.

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