KR20090019635A

KR20090019635A - Module apparatus for adjusting height of beam-projector

Info

Publication number: KR20090019635A
Application number: KR1020070084217A
Authority: KR
Inventors: 김영훈
Original assignee: (주)엔티전기
Priority date: 2007-08-21
Filing date: 2007-08-21
Publication date: 2009-02-25

Abstract

Beam projector lifting device according to the present invention, the upper end is mounted on the ceiling folded link configured to be able to change the length up and down; A housing in which the beam projector is mounted; And a winding unit configured to lift and lower the housing by being mounted on the ceiling and configured to wind and unwind the lift wire connected to the housing.

By using the beam projector lifting device according to the present invention, even if the length of the folded link is not made long, the beam projector configured to be detached from the folded link can be sufficiently lowered to near the ground, thereby adjusting the horizontal and vertical posture of the beam projector. However, maintenance and repair of the beam projector is very simple.

Description

Removable beam projector lifting device {Module Apparatus for adjusting height of beam-projector}

The present invention relates to a lifting device for lifting and lowering a beam projector using a folding link, and more particularly, to a removable lifting device configured to position the beam projector to a lower point than when the folding link is fully extended. It is about.

Beam projectors, one of the devices that project images on the screen, are generally used on a desk or fixed to the ceiling. In this case, when the beam projector is fixed to the ceiling and used, a folded link having a bellows structure is used to adjust the height of the beam projector.

However, such a folding link has a limitation in the distance that the beam projector can be moved downward. That is, even if the folding link is unfolded as much as possible, the beam projector cannot be lowered to the ground. Therefore, when adjusting the horizontal and vertical posture of the beam projector image screen or repairing the beam projector, there is a problem of using a special sue special equipment. .

In order to solve such a problem, a method of manufacturing a folding link very long has been devised so that the working distance of the folding link is very long. However, in order to manufacture the folding link very long, it is not only expensive to manufacture but also of the folding link. As the load becomes very large, there is a risk of falling off from the ceiling.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a removable beam projector lifting device configured to sufficiently lower the beam projector to the ground even when the length of the folded link is not made long.

Removable beam projector lifting device according to the present invention,

A foldable link having an upper end mounted on the ceiling and configured to be changed in length up and down;

A housing in which the beam projector is mounted; And

A winding unit configured to lift and lower the housing by being mounted on a ceiling, the one end being configured to wind and unwind a lift wire connected to the housing;

It is configured to include.

At the lower end of the folding link, a seating frame having an opening formed in a center portion thereof is provided.

The upper surface of the housing is provided with a mounting block inserted into the opening so that the side surface is in contact with the inner wall of the opening.

The seating block has an inclined side in a direction in which the horizontal cross-sectional area becomes narrower toward the top.

The folded link is composed of a stacked structure forming a polygonal frame shape to form an internal space,

The winding portion and the lift line are located in the inner space of the folded link.

By using the beam projector lifting device according to the present invention, even if the length of the folded link is not made long, the beam projector configured to be detached from the folded link can be sufficiently lowered to near the ground, thereby adjusting the horizontal and vertical attitude of the beam projector. However, maintenance and repair of the beam projector is very simple.

The detachable beam projector elevating device according to the present invention has the greatest feature in that the beam projector is configured to be lowered lower than the lowest position capable of lowering the housing on which the beam projector is seated by the folding link.

Hereinafter, an embodiment of a beam projector elevating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a beam projector lifting device according to the present invention.

As shown in FIG. 1, the beam projector elevating device according to the present invention includes a folding link having a bellows structure such that an upper end thereof is mounted on a ceiling so that the length thereof may be changed vertically, that is, the lower end thereof may be lowered toward the ground ( 100, a housing 200 on which the beam projector 210 is seated, a lift line 310 having one end connected to the housing 200, and a lift line 310 wound and unwound to be mounted on the ceiling. It is configured to include a winding unit 300 is configured to raise and lower the housing 200 by.

The folded link 100 is coupled so that a plurality of linear links 102 to form a continuous zigzag shape, when the linear link 102 is folded so as to be close to horizontal, the lower end is raised to the upper side, the linear link 102 ) Is stretched closer to the vertical, the lower part is lowered. In this case, the linear link 102 positioned at the uppermost side and the linear link 102 positioned at the lower side are provided with a slide hinge 110 configured to be slidable in the horizontal direction at the outer end thereof, so that the folded link 100 is provided. When the sliding hinge 110 is slid outwards, when the folding link 100 is opened, the slide hinge 110 is slid inward.

As described above, the folded link 100 that is formed in a zigzag shape, that is, a bellows shape, is operated in a variety of fields including a conventional beam projector lifting device, and a detailed description thereof is omitted. do.

The winding part 300 is a component for elevating the housing 200 apart from the folding link 100, and a lower end thereof may wind or unwind the lift line 310 coupled to the housing 200. It is configured to. That is, the winding unit 300 may include a drum (not shown) to which the lift line 310 is wound, and a motor 320 for forward or reverse rotation of the drum by a user's manipulation. have.

At this time, the lift line 310 is formed longer than the length when the folded link 100 is maximally unfolded, the housing 200 is lowered downward than the position when the folded link 100 is maximally unfolded Can be. That is, when the removable beam projector lifting device according to the present invention can lower the housing 200 configured to be detachable from the folding link to the ground, the operation of adjusting the vertical posture and the horizontal posture of the beam projector 210 is performed. In addition, there is an advantage that the maintenance and repair work of the beam projector 210 can be performed on the ground.

In addition, when the folded link 100 is formed in a polygonal frame shape to be laminated so as to form an inner space as in this embodiment, the housing 200 can be pulled up to the center of the folded link 100 The winding unit 300 and the lift line 310 are located in the inner space of the folding link 100 so that.

The lift line 310 should be manufactured to have a tensile strength sufficient to support the load of the housing 200 on which the beam projector 210 is seated, and may be applied as a metal wire or a synthetic wire, or a plurality of wires. It may also be applied to the electric wire consisting of a structure that surrounds the coating material. In addition, in order to prevent the housing 200 from inclining to one side when the lift line 310 is released and the housing 200 is lowered, the lift line 310 is provided at both sides of the housing 200. It is preferable to combine one or more of each.

As shown in FIG. 1, when the housing 200 is pulled up and the housing 200 is wound around the lift line 310 in a state where the housing 200 is positioned further downward than the folding link 100, the housing 200 is closed. In case of shaking in the lateral direction, a phenomenon may occur in which the housing 200 is not positioned at the center of the folded link 100. In order to solve such a problem, the lower end of the folding link 100 is provided with a seating frame 120 having an opening formed in the center portion, the side of the upper surface of the housing 200 to contact the inner wall of the opening. A mounting block 220 is inserted into the opening.

As such, when the seating frame 120 and the seating block 220 are provided, the seating block 220 is inserted into an opening of the seating frame 120 when the housing 200 is pulled up, and thus the housing 200. There is an advantage that the position in close contact with the folded link 100 is always constant.

In addition, even if the position of the seating frame 120 and the seating block 220 slightly shifted so that the seating block 220 can be easily inserted into the opening of the seating frame 120, the seating block 220 to the top It is preferable that the side surface is formed to be inclined toward the narrower horizontal cross-sectional area. At this time, the inner wall surface of the opening of the seating frame 120 is also preferably formed to be inclined in the same direction as the side of the seating block 220.

Figure 2 is a side view of the removable beam projector lifting device according to the present invention operated to raise the housing 200, Figure 3 is a removable beam projector according to the present invention the folded link 100 is extended to the housing 200 is lowered Figure 4 is a side view of the lifting device, Figure 4 is a side view of the removable beam projector lifting device according to the present invention the housing 200 is lowered by the lift line 310 is released.

In the detachable beam projector lifting apparatus according to the present invention, when the beam projector 210 is not used, as shown in FIG. 2, the folding link 100 is completely folded to provide a housing 200 in which the beam projector 210 is seated. Position it as close to the top as possible, i.e. as close to the ceiling as possible.

When the user unfolds the folded link 100 to use the beam projector 210 in the state shown in FIG. 2, the vertical length of the folded link 100 becomes longer as shown in FIG. 3, and the folded link 100 is increased. The housing 200 in close contact with the bottom of the 100 is lowered downward. In this case, the slide hinge is slid inwardly, and the lift line 310 coupled to the upper side of the housing 200 is released from the winding part 300 as the overall length of the folding link 100 is increased.

When the horizontal posture and the vertical posture of the beam projector 210 are adjusted in the state shown in FIG. 3, or when the maintenance and repair of the beam projector 210 is to be performed, the winding unit 300 is released to release the lift line 310. ). When the lift line 310 is released, the housing 200 connected to the lift line 310 is lowered as shown in FIG. 4 to be spaced apart from the folded link 100. In this case, the length of the lift line 310 may be freely selected depending on a height at which the winding unit 300 is mounted, a height at which the beam projector 210 is mounted, or a descending distance of the housing 200.

In this case, the removable beam projector lifting apparatus according to the present invention may be configured to raise and lower the housing 200 using only the winding part 300 and the lift line 310 without the folding link 100. When the housing 200 is lowered by releasing the lift line 310, the housing 200 may not only be tilted to one side but also may not finely adjust the falling distance. Therefore, when the housing 200 is lowered to use the beam projector 210, the folding link 100 is used, and when the housing 200 is lowered to maintain and repair the beam projector 210, It is preferable to use the winding unit 300 and the lift line 310.

In addition, in the state shown in FIG. 4, when the housing 200 is pulled up and repositioned, the motor 320 is rotated in a reverse direction so that the lift line 310 is wound. As such, the structure of the winding unit 300 that unwinds and winds the lift line 310 by manipulating the rotational direction of the motor 320 is widely used in various types of devices, and a detailed description thereof will be omitted.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment, Comprising: It should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

1 is a perspective view of a removable beam projector lifting device according to the present invention.

Figure 2 is a side view of the removable beam projector lifting device according to the present invention operated to raise the housing.

Figure 3 is a side view of the removable beam projector lifting device according to the invention the folded link is lowered housing.

4 is a side view of the detachable beam projector elevating apparatus according to the present invention, in which the housing is lowered by lifting the lift line.

100: folding link 102: straight link

110: slide hinge 120: seating frame

200 housing 210 beam projector

220: mounting block 300: winding

310: lift line 320: motor

Claims

Folding link 100 is configured so that the top is mounted on the ceiling can be changed in length up and down;

A housing 200 on which the beam projector 210 is mounted, and configured to be detachable from the lower end of the folding link 100; And

A winding unit 300, one end of which is configured to wind and unwind the lift line 310 connected to the housing 200, mounted on the ceiling, and configured to raise and lower the housing 200;

Removable beam projector lifting device characterized in that comprises a.

The method of claim 1,

At the lower end of the folding link 100, a seating frame 120 having an opening formed in a center portion thereof is provided.

Removable beam projector lifting device, characterized in that the upper surface of the housing 200 is provided with a seating block 220 is inserted into the opening so that the side is in contact with the inner wall of the opening.

The method of claim 2,

The seating block 220 is a removable beam projector lifting device, characterized in that the side is formed to be inclined in the direction in which the horizontal cross-sectional area narrows toward the top.

The method according to any one of claims 1 to 3,

The lift line 310 is a removable beam projector lifting device, characterized in that coupled to each one or more on both sides of the housing (200).