JP2007272097A - Projector and device for suspending projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector having finely adjustable height, and further a device for suspending a projector or the like which is used for such a projector, for example, which is constituted of a small number of components, and which is easily assembled and adjusted. <P>SOLUTION: The projector 1 includes a plurality of leg parts 21 to 23 each having adjustable height. When the projector 1 is attached to a ceiling or the like, the projector 1 is inverted to pull out the leg parts 22 and 23 and draw the leg part 21, and the L-shaped hook part 51 of a suspending device 40 is put on the leg part 21 first. After the hole parts 52 and 53 of the suspending device 40 are respectively fitted to holes for the leg parts 22 and 23 formed on a projector equipment main body 1, the pulled-out leg parts 22 and 23 are inserted in the hole parts 52 and 53. Thus, the height of the front part of the projector 1 is adjusted by using the leg part 21, and the height on the right and the left sides and the angle of the projector 1 are adjusted by using the leg parts 22 and 23. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a projector having three height-adjustable legs, and more particularly to a hanging device for a projector or the like that is used in such a projector and has a small number of parts and can be easily assembled and adjusted.

  In a projector such as a liquid crystal projector, the projector device body is often used while being locked to a ceiling of a room. In particular, in a projector that projects and displays a television image or the like, it is not sufficient to simply lock the device body to the ceiling or the like, and it is necessary to adjust the angle to an optimum angle according to the installation location. Therefore, such a suspension device that locks the device main body to the ceiling or the like generally has a complicated structure and increases the number of parts, which takes time for assembly and makes adjustment methods at the time of installation difficult. May occur.

In order to solve such a problem, the projector includes a support unit for supporting the projector unit by suspending the rear part of the projector device main body. A technique related to a ceiling suspension device including an attachment portion for attachment has been considered (see, for example, Patent Document 1).
JP 2002-344846 A

  However, in the conventional apparatus, when the projector device main body is used while being locked to the ceiling of the room or the like, a support portion made of a hook or the like, a mounting plate, etc. at a predetermined position on the top plate of the projector device main body Must be installed first, and the number of parts other than the main body of the projector device is still large, the structure is complicated, it takes time for assembly, and the adjustment method at the time of installation is not solved. In addition, there is no way to improve the projector apparatus main body.

  The present invention has been made in view of the above points, and provides a projector capable of fine height adjustment. Further, for example, a projector that is used in such a projector, has a small number of parts, and is easy to assemble and adjust. An object is to provide a hanging device.

  In order to achieve the above object, a projector according to the present invention is a projector having a projection unit for projecting light on the front surface thereof, and is provided on the bottom surface of the projector and in the front center portion, and has a certain length for height adjustment. A first leg portion that can be pulled out in a range of 1 mm and cannot be pulled out, and a second leg that is provided at a bottom end portion of the projector and at a rear end portion thereof and can be pulled out in a range of a certain length for height adjustment. It has a leg part and a third leg part which is provided on the bottom end of the projector and at the other rear end part and can be pulled out in a range of a certain length for height adjustment.

  In order to achieve the above object, a projector suspension apparatus according to the present invention is a projector suspension apparatus for attaching a projector main body having a plurality of height-adjustable legs to a ceiling or the like. A first attachment portion formed of a notch for hooking on a leg portion provided at a front center portion of the projector device body, and a plurality of portions provided at the rear and provided at the rear of the projector device body. It has a plurality of 2nd attaching parts which consist of a hole for attaching to a leg part, and the 3rd attaching part for attaching ceilings etc., It is characterized by the above-mentioned.

  According to the present invention, it is possible to provide a projector capable of fine height adjustment, and further to provide a suspension device such as a projector which is used for such a projector and has a small number of parts and can be easily assembled and adjusted. it can.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view from below of the projector 1 according to the present embodiment.

  The projector device body 1 has a rectangular casing. A lens portion 10 for irradiating light to an external screen (not shown) is provided at the front portion. Further, at the lower part thereof, there are three leg portions 21, 22, and 23 for adjusting the height when the apparatus main body 1 is used on a desk or the like.

  The leg portion 21 constitutes a first leg portion and is formed in a screw structure and cannot be extracted. The leg portion 21 is provided on the bottom surface of the projector device main body 1 and in the front center portion. When the push button 31 is pressed, the leg portion 21 can be pulled out within a certain length range.

  Further, when the leg portion 21 returns the push button 31, the leg portion 21 is fixed at the pulled-out height. After the leg 21 is pulled out, it is possible to finely adjust the height by pressing the push button 31 and adjusting the height by moving the leg 21 in or out, or by rotating it in a certain direction. is there.

  The leg portions 22 and 23 constitute second and third leg portions and have a screw structure. The leg portions 22 and 23 are provided on the bottom surface and the rear end portion of the projector device main body 1, respectively. The leg portions 22 and 23 are adjusted in height by being rotated in a certain direction. The leg portions 22 and 23 have a structure that can be extracted from the device main body 1 by rotating.

  FIG. 2 is a perspective view showing a state in which the leg portions 21, 22, and 23 are pulled out from the device main body 1 in this way. As shown in FIG. 2, in the present embodiment, the projector 1 has leg portions 21, 22, and 23 that can be adjusted in height at three points. Even if it is placed in a place that is not, the height can be adjusted without using other members.

  FIG. 3 is a diagram in which the projector device body 1 is disposed upside down in order to attach the projector device body 1 to a ceiling or the like. In order to attach to the ceiling or the like, first, it is necessary to rotate and remove the leg portions 22 and 23 from the device body 1. Further, it is necessary to pull out the leg portion 21 by a certain length.

  4 to 6 are diagrams showing a configuration of a suspension device 40 such as a projector. 4 is a left side view of the assembled suspension device 40, FIG. 5 is a top view, and FIG. 6 is a bottom view. The suspending device 40 includes a first component 41 that is actually attached to a ceiling or the like, and a second component 42 that is directly attached to the projector 1. In the present embodiment, the suspension device 40 is composed of two parts, but may be manufactured by integral molding.

  As shown in FIGS. 4 and 5, the first part 41 of the suspension device 40 has a U-shaped central portion, and is attached to the ceiling or the like above and below the longitudinal direction. Portions 43 and 44 (constituting the third mounting portion) are formed. A connecting portion 45 for assembling with the second component 42 is formed at the center portion of the U-shape.

  As shown in FIGS. 4 and 6, the second component 42 of the suspension device 40 is formed in a T shape in the plane direction, and the leg portion of the projector device main body 1 is formed in a portion protruding left and right. Holes 52 and 53 for attachment to the holes 22 and 23 are formed. The hole portions 52 and 53 constitute a second attachment portion.

  An L-shaped hook portion 51 for attaching to the leg portion 21 of the projector device main body 1 is formed at a portion protruding in front of the second component 42. The L-shape of the hook portion 51 constitutes a first attachment portion for hanging the leg portion 21 of the projector 1. The hook part 51 is formed in an L-shape having a dimension that can be finely adjusted to the left and right (lateral direction) to the extent that the leg part 21 is not removed.

In addition, a connection portion 54 for assembling with the first component 41 is formed at the central portion of the second component 42. The connecting portion 45 of the first component 41 and the connecting portion 54 of the second component 42 are combined and joined by a connecting member 55 such as a bottle and a nut as shown in FIG.

  FIG. 7 is a diagram showing a procedure when the suspension device 40 assembled in this way is attached to the projector 1. As shown in FIG. 7, the user first places the projector device body 1 upside down as shown in FIG. 3, rotates the leg portions 22 and 23, and pulls out the leg portion 21 to a certain length.

  Then, the assembled suspension device 40 is attached to the projector 1. First, the leg portion 21 is hooked on the L-shaped hook portion 51 provided on the second component 42 of the suspension device 40. That is, the leg portion 21 is first hung on the hook portion 51 in the vertical direction, and then fitted to the left side in the horizontal direction along the L shape.

  Next, in order to fit the already-extracted leg portions 22 and 23, the holes 52 and 53 of the hanging device 40 are respectively aligned with the holes (not shown) for the leg portions 22 and 23 formed in the projector device body 1. The leg portions 22 and 23 are inserted above. Further, at this time, after the height and angle of the projector 1 are finely adjusted by additionally inserting a fastener 60 such as a nut between the projector device main body 1 and the second part 42 of the suspension device 40. It is possible to fix with the fastener 60 so as not to slip.

  FIG. 8 is a side view when the projector 1 and the suspension device 40 attached in this way are attached to the ceiling 100 or the like. As shown in FIG. 8, the height of the front portion of the projector 1 can be adjusted by rotating the leg portion 21 of the projector 1. The left and right heights and angles of the projector 1 can be adjusted by rotating the legs 22 and 23 of the projector 1.

  As a result, the projector itself has three height-adjustable legs so that a projector capable of fine height and angle adjustment can be provided. And a hanging device such as a projector that can be easily adjusted.

1 is a perspective view of a projector 1 according to an embodiment of the present invention. The perspective view which shows a mode that the leg parts 21, 22, and 23 were pulled out from the apparatus main body 1. FIG. The figure arrange | positioned upside down in order to attach the projector apparatus main body 1 to a ceiling etc. FIG. The figure which shows the structure of suspending apparatuses 40, such as a projector. The top view which shows the structure of suspending apparatuses 40, such as a projector. The bottom view which shows the structure of suspending apparatuses 40, such as a projector. The figure for demonstrating the procedure at the time of attaching the hanging apparatus 40 to the projector 1. FIG. The side view at the time of attaching the projector 1 and the suspension apparatus 40 to ceilings 100 etc. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Projector 21, 22, 23 Leg part 31 Push button 40 Suspension apparatus 41 1st part 42 2nd part 43, 44 Attachment part 45, 54 Connection part 51 L-shaped hook part 52, 53 Hole part 55 Connection member 60 fasteners

Claims (6)

In a projector having a projection unit that projects light on its front surface,
A first leg that is provided at the bottom of the projector and in the center of the front, can be pulled out within a certain length for height adjustment, and cannot be removed;
A second leg that is provided at the bottom of the projector and at one end on the back and that can be pulled out within a certain length for height adjustment;
A third leg that is provided at the bottom of the projector and at the other rear end, and can be pulled out within a certain length for height adjustment;
A projector comprising:   The projector according to claim 1, wherein the first to third legs are formed in a screw structure.   The projector according to claim 1, wherein the second and third legs are formed so as to be removable. In the hanging device of the projector for attaching the apparatus body of the projector having a plurality of height-adjustable legs to the ceiling or the like,
A first mounting portion provided at a front center portion and comprising a notch for hooking on a leg portion provided at a front center portion of the projector device body;
A plurality of second mounting portions provided at the rear and made of holes for mounting on a plurality of legs provided at the rear of the projector device body;
A third attachment portion for attaching a ceiling or the like;
A suspension device comprising:   When the suspension device is attached to the projector device main body, the projector is inserted between the projector device main body and the second attachment portion, and the legs of the projector attached to the second attachment portion are fixed. The suspension device according to claim 4, further comprising a fastener for the purpose.   The suspension device according to claim 4, wherein the first attachment portion is an L-shaped notch.

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