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US 7,062,813 B2Granted
Support leg system and method for supporting a dock leveler
AssigneeSPX Dock Products, Inc.
InventorsRichard K. Hoofard, James C. Alexander, Douglas H. Massey, Michael M. Meichtry
Life of this patent
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Abstract
An apparatus for supporting a dock leveler in a manner to reduce the effects of free fall and stump-out. The apparatus includes the use of a retractable support leg.
Claims14
A support system for a dock leveler having a ramp and a lip comprising:
- a support leg apparatus attached to the ramp, said support leg apparatus comprising a support leg;
- a camming surface biased to an upward position and movable to a deflected position when the ramp descends at least as fast as a predetermined rate and said support leg apparatus engages said camming surface, wherein said camming surface is configured to remain in the upward position when the ramp descends slower than a predetermined rate;
- and,
- a lip holder coupled to said camming surface and configured to cause said camming surface to move to the deflected position when the ramp descends at any rate and when the lip engages said lip holder.
1 more element
A support system for a dock leveler having a ramp and a lip comprising:
- means for supporting the ramp attached to the ramp, said supporting means comprising a support leg;
- means for camming biased to an upward position and movable to a deflected position when the ramp descends at least as fast as a predetermined rate and said supporting means engages said camming means, wherein said camming means is configured to remain in the upward position when the ramp descends slower than a predetermined rate;
- and,
- means for holding the lip configured to cause said camming means to move to the deflected position when the ramp descends at any rate and when the lip engages said lip holding means.
1 more element
Dependencies are inferred from the claim text.