Dock leveler hold-down system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 19, 1994
Grant Date -
N/A
app pub date -
Apr 2, 1992
filing date -
Apr 2, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hold down device for a dock leveler employs a pair of telescoping members sliding with respect to each other. One member is coupled to the deck and the other to the leveler frame. A resilient member biases the telescoping members toward each other but provides for a degree of float in the system. A brake shoe has a ramp surface and is biased against one of the members as they separate. A release lever moves the brake shoe for disengagement as the leveler is lowered. Thereafter the brake shoe engages and movement is via the resilient member. If the leveler moves down such that the resilient member is compressed, as the telescoping members compress they cause the release member to move thereby slipping the brake. This in turn allows the telescoping members to reset and re-engage the brake.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 13 Citation Count
- B65G Class
- 70.42 % this patent is cited more than
- 31 Age