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
1986-02-26
1987-09-01
Levy, Stuart S.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254903, 192 8R, B66D 320, B66D 522
Patent
active
046903798
ABSTRACT:
An electric chain block includes a driving shaft connected to a rotating shaft of an electric motor, and a driving gear provided on the driving shaft, and further includes an intermediate driven gear in mesh with the driving gear, a torque limiter and a mechanical brake assembly between the driving shaft and a load sheave. The electric chain block comprises an intermediate shaft arranged in parallel with said driving shaft, a support member anchored to the intermediate shaft, an urging member fitted on the intermediate shaft, a cam support provided inside the intermediate driven gear and fitted on the intermediate shaft between the support member and the urging member, a retainer disc and a brake receiving disc axially slidably but nonrotatably on said intermediate shaft respectively on one side and the other side of the cam support, at least one of these members being a spring, a ratchet wheel for braking interposed between the intermediate driven gear and the brake receiving disc and engaging a pawl for braking, brake releasing cam members accommodated in cam grooves formed in a side of the cam support, depths of the cam grooves changing circumferentially of the intermediate shaft, and an adjusting nut threadedly engaging an extending end of the intermediate shaft for adjusting urging force of the urging member.
REFERENCES:
patent: 2501096 (1950-03-01), Robins et al/
patent: 3047114 (1962-07-01), Stevens
patent: 3399867 (1968-09-01), Schroeder
patent: 3727887 (1973-04-01), Lytle
patent: 3756359 (1973-09-01), Suez
patent: 4348011 (1982-09-01), Honda
patent: 4508318 (1985-04-01), Maeda
patent: 4605111 (1986-08-01), Ohno
Kabushiki Kaisha Kito
Levy Stuart S.
Matecki Katherine
LandOfFree
Electric chain block does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric chain block, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric chain block will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1260268