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
1998-07-15
2000-04-25
Walsh, Donald P.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254278, 254288, 254329, 212274, B66D 100
Patent
active
060534788
ABSTRACT:
A hoist system including a roller assembly which is allowed to pivot as a suspending member is rolled up around a drum compensates for lateral forces and allows a load on the suspending member to remain centered under the roller assembly. The drum has a shaft mounted through the center with a resilient coupling between the shaft and the drum which allows transfer of rotational torque while allowing the drum to pivot. Such a coupling can be furnished by a pair of concentric rings around the shaft having pivot holes orthogonal to the shaft axis. The innermost ring is connected by a pair of pivot pins to the shaft. The outermost ring is connected to the innermost ring by another pair of pivot pins perpendicular to the pivot pins through the shaft. The outermost ring is attached to the inside of the drum. The drum and outermost ring are allowed to pivot around the axis through pivot pins in the outermost ring, and the drum, outermost ring and innermost ring are allowed to pivot around the perpendicular axis through the pivot pins in the shaft.
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Marcelo Emmanuel M.
PRI Automation, Inc.
Walsh Donald P.
LandOfFree
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