Invention Grant
- Patent Title: Hand truck exchangeable tool attachment method
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Application No.: US15481104Application Date: 2017-04-06
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Publication No.: US09776650B1Publication Date: 2017-10-03
- Inventor: Darryl Edward Berlinger
- Applicant: Darryl Edward Berlinger
- Main IPC: B62B1/14
- IPC: B62B1/14 ; B62B1/12 ; B62B1/00

Abstract:
A hand truck includes a quick release/attach mechanism operating according to a method for quickly and easily exchanging various tools with the hand truck, the quick release/latch mechanism including biased locking pins movably located within tubular frame members integral to the hand truck and proximal holes in the tubular frame members for receiving a projection member of the tool and spaced a predetermined distance from a hangar portion of the tool and wherein the hangar portion may be hung on a crossbar of the tubular frame and then the projection members of the tool may be coupled with and retained by the locking pins of the tubular frame. The arrangement requires no hand tools such as wrenches or screwdrivers, and no external fasteners such as pins or bolts. The geometry of the cross bars on the hand truck allow tool attachments to be captured or releases simply by tilting the hand truck forward or backward. The tool attachments are then locked to the truck by locking rods and pins that operate inside the two main tubes of the hand truck.
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