Belt hoist
AssigneeElephant Chain Block Company Limited
InventorsHidenori Fujiwara, Masaru Fujikawa, Koji Saai
Life of this patent
Estimating the term…
Abstract
To prevent a random coil of and an overwind of a belt with simple structure, a belt hoist includes a random coil preventing member pressed against the belt wound around a winding member to prevent a random coil of the belt, the random coil preventing member being movable in response to changes in diameter of the belt; and control means for controlling drive of drive means in association with the random coil preventing member when the diameter becomes a specified diameter. Further, a belt guide having a belt guide portion is supported between two side plates in such a freely sliding manner as to allow the winding of the belt onto the winding member.
Claims7
A belt hoist comprising:
- a winding member around which a belt is wound;
- drive means for driving said winding member;
- a random coil preventing member pressed against said belt wound around said winding member to prevent a random coil of said belt, said random coil preventing member being movable in response to changes in the wound diameter of said belt;
- and
- control means for controlling drive of said drive means in connection with said random coil preventing member when the wound diameter becomes a specified diameter.
A belt hoist comprising:
- a winding member around which a belt is wound, said winding member being rotatably supported between two opposing side plates;
- a belt guide having a belt guide portion which is arranged between said two side plates in such a freely sliding manner, in response to changes in the wound diameter of said belt, as to allow a winding action of the belt onto said winding member;
- and
- a belt slack sensor for detecting slack in a part of the belt to be guided, said belt slack sensor being arranged on a moving path along which part of the belt to be guided into said belt guide portion moves.
Dependencies are inferred from the claim text.