Assist mechanism for lifting and closing large enclosures

Details Assist mechanism for lifting and closing large enclosures Assist mechanism for lifting and closing large enclosures

B - Operations, Transporting

66

F

B66F 3/46 (2006.01) B66F 3/32 (2006.01) E05F 7/06 (2006.01)

Patent

CA 2511739

An assist mechanism for assisting in the pivotal movement of an enclosure member between closed, intermediate, and open positions. A first biasing member has a swing arm pivotally connected to a strut and extends between a base plate and enclosure member, and a second biasing member has a link pivotally connected to a limited tension spring and also extends between the base plate and enclosure member, whereby each impart a substantially biasing force substantially on only one side of the intermediate position, with the first biasing member biasing the enclosure member away from the closed position, and a second biasing member biasing the enclosure member away from the open position.

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