Reversible monkey wrench

A reversible monkey wrench includes a handle, a head, a movable jaw, an axle, a worm gear and a dragging mechanism. A connecting end of the handle and the head are pivotally connected to each other via a pivot. The movable jaw has a tooth rib movably received in a sliding slot of the head. The axle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WU, ARTHUR CHUAN-FU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	A reversible monkey wrench includes a handle, a head, a movable jaw, an axle, a worm gear and a dragging mechanism. A connecting end of the handle and the head are pivotally connected to each other via a pivot. The movable jaw has a tooth rib movably received in a sliding slot of the head. The axle is connected to the head and disposed within the worm gear. The worm gear has a tooth portion for engagement with the tooth rib, and is slidably disposed in a receiving slot of the head and slidable relative to the axle along an axis of the axle. One end of the worm gear is provided with a first dragging portion. The dragging mechanism is circumferentially arranged relative to the axle, and circumferentially contacts the first dragging portion. As the worm gear slides axially to make the dragging mechanism and the first dragging portion contact each other to generate a frictional force between the dragging mechanism and the first dragging portion greater than a force opposite to the frictional force, the worm gear