Lift equipment

A technology of equipment and cables, which is applied in the field of heavy lifting equipment, can solve the problems of reduced maintenance efficiency, unsafe and impractical maintenance of lighting equipment, etc.

Inactive Publication Date: 2004-03-03
MATSUSHITA ELECTRIC WORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It's not practical to do this tiresome maneuver often at heights
On the other hand, if this operation is not carried out, there will be problems of unsafe lighting equipment maintenance work and reduced maintenance efficiency

Method used

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Examples

Experimental program
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Embodiment Construction

[0043] The heavy object lifting device of the present invention will be described in detail below according to the accompanying drawings and preferred embodiments. There are no restrictions on heavy objects, for example, heavy objects include lighting equipment, cameras for crime prevention, fire alarm equipment and curtains, etc., which are used in high places and need to be lowered from high places for maintenance.

[0044] The perspective view of the specific embodiment of the lifting device is as figure 1 As shown, the lifting device includes a pair of ribbon cables 2 , a weight holder 3 capable of fixing lighting equipment, and a base part 1 capable of being fixed to the ceiling. The weight holder 3 is connected to the base part 1 through cables 2 .

[0045]The cable 2 is preferably made of a metal material with high hardness. When the number of cables is two or more, there is an advantage that even if one of the cables breaks accidentally, the weight holder can still be ...

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PUM

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Abstract

A hoisting apparatus is provided to facilitate maintenance of a load such as luminaires used at high elevations under safe working conditions. The apparatus comprises at least one cable, a load holder for holding the load, a base secured to a ceiling of a structure, and coupled to the load holder through the cable, and a drive unit for moving the load holder up and down by use of the cable between a top position where the load holder is located adjacent to the base, and a bottom position where the load holder is spaced from the base. The load holder has cable-length adjust unit for adjusting a length of the cable to stop the load holder at a desired position between the top and bottom positions.

Description

technical field [0001] The present invention relates to a lifting device for heavy objects, such as a light source for high places, especially a lifting device in which the lowering position of the heavy objects can be easily and safely adjusted to make the maintenance work of the heavy objects easier. Background technique [0002] In structures with high ceilings, such as concert halls, gymnasiums, conference halls, etc., in order to facilitate the maintenance of lighting equipment near the ceiling, people often use a lifting device. This lifting device is mainly composed of a lifting part supporting lighting equipment, a driving mechanism for moving the lifting part up and down with a cable, and a base part fixed on the ceiling for placing the driving mechanism. [0003] In such a lifting device, when the lifting device is installed on the ceiling of a building, the optimum length of the cable is also determined according to the height of the ceiling. Thus, the lifting po...

Claims

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Application Information

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IPC IPC(8): E04B9/00B66D1/28B66D1/60E04B9/18F21V21/16F21V21/36F21V21/38F21W131/406
CPCF21V21/38F21V21/16B66D1/50
Inventor 清水稔之宫崎康弘中岛史朗
Owner MATSUSHITA ELECTRIC WORKS LTD
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