JPS6327389Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an elevating device for elevating a high ceiling lighting fixture or the like.

BACKGROUND ART The curved prior art is shown in FIG. The luminaire positions are individually suspended by cables 2, 3, 4, 5 and individually wrapped around drums 6, 7, 8, 9, and these drums 6, 7, 8, 9 are common. are driven all at once by a drive source 10. The drums 6, 7, 8, 9 and the drive source 10 are housed in a casing 11, which is fixed to a ceiling 12 as shown in FIG.

In such prior art, cables 2, 3, 4, 5
The length of the lamp must be adjusted accurately, otherwise the luminaire 1 will be tilted as shown in FIG. The cables 2, 3, 4, and 5 may elongate due to long-term use, and the rate of elongation is uneven. Lighting equipment 1 like this
is tilted, the lighting condition worsens, and it becomes unsightly.

Purpose The purpose of the present invention is to provide an improved lifting device that allows objects to be lifted and lowered, such as lighting equipment, to be raised and lowered while maintaining a predetermined posture.

Embodiment FIG. 3 is a partially cutaway perspective view of an embodiment of the present invention. The lighting fixture 1, which is an object to be lifted and lowered, is equipped with a plurality of (two in this embodiment) sets of lifting means 14, 15.
, the lighting fixture 1 is raised and lowered in a horizontal position. The elevating means 14 includes a cable 16 made of a loop-shaped wire rope or the like.
Both ends are wound around drums 17 and 18, respectively. Another lifting means 15 is also a cable 19.
, and both ends of the cable 19 are connected to drums 20 and 21.
wrapped around each. Drums 17, 18,
20 and 21 are fixed to a common horizontal shaft 22, and this shaft 22 is rotationally driven by a drive source 23 including a motor or the like. By rotating the drums 17, 18, 20, 21 by the drive source 23, both ends of the cables 16, 19 are wound up or rewound all at once.

In the lifting means 14, the upper surface 24 of the lighting fixture 1
includes a pulley 25 as a pair of cable guide members,
26 are rotatably spaced apart from each other about a horizontal axis. A cable 16 is wound between the pulleys 25 and 26, and a stopper 28 connects the cable 16 to a plate-shaped mounting member 27 that is erected and fixed to the upper surface 24 of the lighting device 1. It will be fixed.

FIG. 5 is an exploded perspective view of the stopper 28.
The bolt 32 having the external thread 29 has an insertion hole 31 through which the cable 16 is loosely inserted. This bolt 30 is inserted gently into a long hole 32 formed in the mounting member 27 and extending vertically. A nut 33 is screwed into the external thread 29 of the bolt 30 inserted through the elongated hole 32. By tightening the nut 33 in this manner, the cable 16 is clamped between the head 34 of the bolt 30 and the mounting member 27, and the intermediate position of the cable 16 is fixed on the lighting fixture 1. By loosening the nut 33, the fixed position of the cable 16 can be adjusted.

A pulley 36 serving as a cable support member is provided between the stopper 28 and the pulley 25 serving as one cable guide member. This pulley 36 is attached to the mounting member 2
It is inserted gently through a vertically extending elongated hole 37 formed in 7 and is mounted rotatably around a horizontal axis. This pulley 36 can be rotatably fixed to the mounting member 27 at a midway position in the direction in which the elongated hole 37 extends.

A portion of the cable 16 wrapped around the pulley 26 is wrapped around a pulley 38 having a horizontal axis. This pulley 38 is supported by the casing 11 near the ceiling. Regarding the other cable 19, pulleys 39, 40, 41, 42 and a stopper 43 are similarly provided. Pulley 25,2
6, 39, and 40 are positioned at the corners of an imaginary square or rectangle on the upper surface 24 of the lighting fixture 1.

By changing the fixing position of the cable 16 with the stopper 28, the pulleys 25, 3 of the cable 16 are fixed.
The part wrapped around 6 and pulleys 26, 38
The ratio of the part that is wrapped around is adjusted.
In addition, by adjusting the support position of the cable 16 by the pulley 36, the pulleys 25 and 36 of the cable 16 can be
The hanging length between the pulley 25 and the drum 17 at the portion where it is wound around and reaches the stopper 28 can be adjusted by changing the hanging length. By operating the stoppers 28, 43 and pulleys 36, 41 in this manner, the attitude of the lighting fixture 1 can be adjusted. Therefore, even when the ceiling 12 is sloped or the cables 16 and 19 have expanded due to long-term use, it is easy to keep the lighting fixture 1 in a desired position, for example, horizontally. It can be adjusted to

As another embodiment of the present invention, the pulleys 25, 2
6, 39, 40, 36, 41, cable 1
Any member may be used as long as it has a guide surface for guiding 6 and 19. Also, the stoppers 28, 43 may have other configurations. Three or more sets of elevating means 14 and 15 may be provided. The present invention can be widely implemented not only in relation to lighting equipment but also for lifting and lowering other objects to be lifted and lowered.

Effects As described above, according to the present invention, an object to be lifted or lowered can be lifted and lowered in a desired posture.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of the prior art, FIG. 2 is a sectional view of the prior art shown in FIG. 1, and FIG. 3 is a partially cutaway perspective view of an embodiment of the present invention. 4 is a sectional view of the embodiment shown in FIG. 3, and FIG. 5 is an exploded perspective view of the stopper 28. 1...Lighting equipment, 14, 15...Elevating means, 1
6, 19... cable, 17, 18, 20, 21...
Drum, 23... Drive source, 25, 26, 36, 3
9, 40, 41...Pulley, 28, 43...Stoppa.

Claims (1)

[Scope of Claim for Utility Model Registration] Equipped with a plurality of elevating means, each elevating means comprising: a loop-shaped cable, a drive means for winding up both ends of the cable, and an object to be lifted and lowered at intervals. a pair of cable guide members; a means for fixing an intermediate position of the cable to an object to be lifted or lowered between the pair of cable guide members; 1. A lifting device comprising: a cable support member that is supported above the cable support member and whose support position is adjustable.