Structure of trigger-boosting pulling device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 13, 2016
Grant Date -
Mar 31, 2016
app pub date -
Sep 29, 2014
filing date -
Sep 29, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A trigger-boosting pulling device includes an elongate shank, which receives a backward ram to slidably fit thereon, a suction cup, which is fixed to a rear end of the elongate shank, a hand-operating pump structure, which is fixed to a front end of the elongate shank and includes a T-shaped pull grip that is connected by a connection bar to a piston assembly. The connection bar includes a spring fit thereon for position restoration of the pull grip. The pump cylinder includes a handle mounted thereto. The handle has a trigger that is arranged to drive, via a connection lever, the connection bar. As such, the T-shaped pull grip can be first pulled to induce a suction force to reach an initial level and then the handle is held by a hand and the trigger is pulled to drive the connection lever for doubling the force so as to induce enhanced vacuum suction force in the suction cup.
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