Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1990-11-20
1992-10-20
Matecki, Katherine
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254352, 254372, 192 431, 192 93A, B66D 114
Patent
active
051563770
ABSTRACT:
A lever-operated hoist having a structure for continuously lowering the lower hook side chain and end side chain of load chains in no-load state comprising a pressure drive member movably screwed in the axial direction on a drive shaft, a rotation limiting member spline-fitted on the drive shaft adjacently to the pressure drive member, and an operation wheel rotatably disposed on the rotation limiting member, a first projection and a second projection extending in the radial direction are disposed at specified intervals in the circumferential direction at the outer end face in the axial direction of the pressure driving member, two circumferential spaces are divided and formed by them, and the rotation limiting protuberance of the rotating limiting member and the pressure release protuberance of the operating wheel are projecting into these two spaces. By the impact action or abutting action of these two protuberances to the first projection, rotation stop of the pressure drive member in no-load operation and contact with other member may be prevented, so that smooth and continuous chain operation may be realized.
REFERENCES:
patent: 4468005 (1984-08-01), Nakamura
patent: 4469308 (1984-09-01), Nakamura et al.
patent: 4479635 (1984-10-01), Maeda
patent: 4819913 (1989-04-01), Nishimura
Matecki Katherine
Vital Kogyo Kabushiki Kaisha
LandOfFree
Lever-operated hoist does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lever-operated hoist, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lever-operated hoist will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-188100