JPS6032084A - Maintenance apparatus for luminous body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention applies to incandescent light bulbs, fluorescent lamps, and others.

The present invention relates to a maintenance device for a light emitting body used for replacing the light emitting body in an ultra-large video display device using a light emitting body such as a cathode ray tube.

Conventional Structure and Problems Conventionally, this type of lamp maintenance device has been constructed by laying a rail 4 on the roof 2 of a building 1 along a video display device 3, as shown in FIG. A traveling type cart 6 is mounted, and a pulley 7 is supported at the tip of an arm 6 supported by the cart 5.
A wire 8 wound on a winding device (not shown) provided on the trolley 5 is guided to a pulley i, and a gondola 9 is connected to the tip of the pulley i, and the gondola 9 is suspended in front of the image display device 3. Then, the operator 10 inside the bomb 9 moves the wire 8 up and down and left and right by winding and unwinding the wire 8 and moving the trolley 6 by remote control or the like, and the video display device 30 lamp is moved. 11 was being exchanged. However, for safety reasons, a qualified and dedicated person is required to operate Gondola 9. Furthermore, the worker 9 has a strong sense of anxiety due to having to work at heights. Furthermore, the device is not only expensive and expensive, but also has the drawbacks of being subject to restrictions on the installation location, and therefore also on the installation location of the video display device.

Purpose of the Invention The purpose of the present invention is to make it possible to replace light emitters such as lamps with simple operations, to free workers from the feeling of working at heights, and to have a structure and installation that is simple and cost-effective. It is an object of the present invention to provide a maintenance device for a light emitting body, which can reduce the amount of light emitted from the light emitting device, and which can also avoid restrictions on the installation location of the video display device.

Structure of the Invention In order to achieve the above object, the present invention provides an arm that can be bent at multiple points, a mounting device that attaches the base of the arm to a support member such as a building, and a distal end of the arm that can be bent at a plurality of locations. It has a mounting position that allows access to a light-emitting unit that is removably attached to a building, etc., and is characterized by being configured such that the light-emitting unit can be detached to the inside of the building, etc. by bending the arm. It is something.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. In FIGS. 2 and 3, 21 is a building, and 22 is an image display device attached to the building 21. This image display device 22 is constructed by combining a large number of light emitting units 23, and each The body unit 23 includes a light emitting body, and a lamp 24 in the illustrated example. Each light emitting unit 23 has a sixth
As shown in the figure, it is attached to a columnar support member 26 made of channel material in a building 21 with a mounting bracket 26. 27 is a maintenance device of the present invention, and this maintenance device 27 includes an arm 28, a mounting device 29 for attaching the base of the arm 28 to the support member 25, and a mounting device 29 for attaching the tip of the arm 28 to the light emitting unit 23. The tail is composed of a device 30 and a tail. The arm 28 is the first. Second
and third arm members 31, 32, and 33. The first arm member 31 is formed into a cylindrical shape, and the base of a frame-shaped second arm member 32 is bendably connected to the tip of the first arm member 31 by a vertical pin 34. A frame-shaped third arm member 33 is bendably connected to the tip of the arm member 32 by a vertical pin 35 . As is particularly clear from FIGS. 3 and 4, in the mounting device 29, a bracket 36 is bendably connected to the base of the first arm member 31 by a vertical pin 37, and the bracket 360 has both side plates 38. Retaining pins 39 are provided on the upper and lower sides, respectively, and retaining notches 40 are formed in the support member 26 in correspondence with the retaining pins 39. This retaining notch 40 is cut out horizontally from the open side of the support member 26 toward the back side, and is cut out vertically below following this horizontal part, and the above-mentioned engagement pin 39 can be removed from this vertical part. It is designed to be engaged with. These retaining notches 4o are formed in the support member 26 so as to correspond to the positions of the respective light emitting units 23. As is clear from FIGS. 3 and 6 (M) and (B), the mounting device 3o has a pair of upper and lower support pieces 41 and 42 protruding from the tip of the third arm member 33. Engagement pins 46° 46 are slidably supported in pin holes 431.44 formed in each support piece 41.42, and large diameter portions 45a of engagement pins 45.46
j 46a and the stepped portions 431L and 44 in the bottle holes 43.44
Compression springs 47, 48 are interposed between 1L and 1L, and the engagement pins 45, 46 are urged outward by the elasticity of these compression springs 47, 48.

A shaft 50 is rotatably supported in the horizontal direction on a side piece 49 provided at the tip of the arm member 33, and a central portion of a linking member 61 is mounted on this shaft 60. Both ends of the link 52 are rotatably connected to one side of the connecting member 61 and the base of the locking pin 46, and both ends of the link 63 are connected to the other side of the connecting member 61 and the base of the locking pin 46. By horizontally tilting the linking member 61, each engagement pin 45,46 is pushed into the pin hole 43.46 against the elasticity of the compression springs 47,48. ．． 44, and the connecting member 6
1 in the vertical direction, each engagement pin 45, 4
6 can be moved forward, and its tip can be projected out of the pin hole 43.44 by the elasticity of the compression spring 47r48.

One end of an operating lever 64 is mounted on the shaft 60,
This operating lever 54 allows the shaft 6o and the connecting part 61 to be rotated. On the other hand, the light emitting unit 23
A support frame 56 is attached to the central part of the back surface of. This support frame 56 has support plates 57 and 58 protruding from above and below the back plate 56, and retaining holes 59 and 60 are formed in each support plate 57 and 58.
are formed, and the retaining piers 46, 46 are removably engaged with these engaging holes 69°6o.

Next, the operation of the present invention will be explained. If the light emitting body (lamp) 24 of the light emitting unit 23 is broken, first, as shown in FIGS. At the same time, the engagement pin 39 of the bracket 36 is engaged with the vertical portion of the engagement notch 40 of the support member 26.

Next, the arm 28 is bent with the pins 34, 35 and 37, and the tip of the third arm portion 33 is attached to the light emitting unit 23.
Insert it inside the support frame 55 of. After insertion, Figure 6 (B)
As shown in the figure, the shaft 5o and the connecting member 61 are rotated by the operation lever 64, and the retaining pins 45 and 46 are moved against the compression spring 47.
, 48, and the tips of the engagement pins 46, 46 are engaged with the engagement holes 59, 60 of the support frame 65.

Next, as shown in FIG. 6(B), the light emitting unit 23 is released from the mounting bracket 26, the entire weight of the light emitting unit 23 is supported by the maintenance device 27, and in this state, the light emitting unit 23 is moved outward. Extrude in parallel. Next, Figure 6 (C)
Extend the arm 28 as shown in FIG.
The arm 28 is further bent as shown in FIG. 6(D), and the light emitting unit 23 is pulled inward and rotated approximately 90 degrees, that is, approximately 180 degrees from the initial state. As a result, the light emitting body unit 23 faces inward, so that the light emitting body (lamp) 24 can be replaced from the back side of the video display device 22.

Effects of the Invention As is clear from the above description, according to the present invention, the base of the arm formed to be bendable at a plurality of locations is attached to the support member, the tip of the arm is attached to the light emitting unit, the arm is bent, The extension operation allows the light emitting unit to be removed inside a building or the like. Therefore, the worker is freed from the feeling of being at heights and no longer feels anxious. Also bending the arm.

Since anyone can perform the extension operation, it is possible to easily replace the light emitting body, and there is no need for a specialized person.

Furthermore, the device can be made smaller, and there are fewer restrictions on where it can be installed in buildings, etc., and therefore, there can be no restrictions on where the video display device can be installed. Further, since the structure is simple, it has advantages such as being economical.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a conventional maintenance device, FIG. 2 is a schematic perspective view for explaining an embodiment of the maintenance device of the present invention, FIG. 3 is an enlarged perspective view of the main parts of the same device, and FIG. The figure is an exploded perspective view of the mounting device at the base of the arm, Figure 6 (A)
, (B) is a sectional view illustrating the operation of the arm and the attachment device section of the light emitting unit, and FIGS. 6(A) to (D) are schematic plan views illustrating removal of the light emitting unit.

Claims (1)

[Claims] an arm formed to be bendable at multiple locations; a mounting device for mounting the base of the arm to a supporting member such as a building;
a mounting device for mounting the tip of the arm to a light emitting unit removably mounted on the building or the like;
A maintenance device for a light-emitting body, characterized in that the light-emitting body unit is detached to the right side of the building or the like by bending the arm.