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
1998-12-09
2000-05-09
Matecki, Katherine A.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
192 95, 254369, B66D 314
Patent
active
060592672
ABSTRACT:
A hoist is a hoisting device wherein a pressure receiving member 6 rigidly secured to a drive shaft 5 is rotated by a press drive member 7 through a reverse rotation stop ring 10 and a pair of friction members 8,9 disposed on both sides of said stop ring. The member 7 is formed with a spring-loading hole 71 opening at the axially base side for accepting the tip 13d of a left hand coil spring 13 and a second engaging groove 7e opening at the axially base side extending radially outwardly. The groove 7e is inclined in the wind-down direction as it approaches the axially forward surface. The angle .alpha. formed between the wind-down directional inclined surface 7k of said groove 7e and the axially backward surface 7j of said member 7 is an acute angle.
REFERENCES:
patent: 5156377 (1992-10-01), Nishimura
patent: 5575457 (1996-11-01), Inoue et al.
patent: 5769398 (1998-06-01), Samejima
Matecki Katherine A.
Vital Kogyo Kabushiki Kaisha
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