Adjustable wrench

摘要

An adjustable wrench has a wrench body, a clamping element, and a ratcheting jaw. The wrench body has a handle, a head, and a thumbscrew. The head is formed on the handle and has a connecting block, a fixed jaw, a curved slot, two pin holes, a positioning pin, a mounting recess, two pivot holes, and a sliding slot. The clamping element is connected to the wrench body and has a sliding bar, a ribbed slab, and a movable jaw. The ribbed slab is formed on the sliding bar and is mounted in the sliding slot. The movable jaw has an engaging surface and a positioning block. The ratcheting jaw is a curved block capable of sliding forward and retracting backward inside the curved slot and has two mounting boards, a receiving recess, an engaging surface, an abutting surface, an engaging protrusion, a holding recess, and an elastic element.

主权项

1. An adjustable wrench having:
a wrench body having
a handle having a front end and a rear end;a head formed on the front end of the handle and having
a top side;a bottom side;two sidewalls;a connecting block formed on and protruding from the front end of the handle and having
an upper side;a front side;a top side; anda bottom side;a fixed jaw formed on and protruding from the upper side of the connecting block, being opposite to the front end of the handle, and having an inner side;a curved slot formed in the connecting block and the fixed jaw between the front side of the connecting block and the inner side of the fixed jaw and having an inner surface being curved;two pin holes respectively formed through the two sidewalls of the head and communicating with the curved slot;a positioning pin inserted through the two pin holes and the curved slot;a mounting recess formed through the top side and the bottom side of the connecting block and having two opposite sides;two pivot holes respectively formed through the opposite inner sides of the mounting recess, formed through the connecting block, and aligning with each other; anda sliding slot formed through the front side of the connecting block and communicating with the curved slot and the mounting recess; anda thumbscrew rotatably mounted in the mounting recess of the head, extending into the sliding slot, and having
an axial line; anda pivot rod axially mounted in and extending through the thumbscrew along the axial line, and mounted in the pivot holes of the head via the mounting recess; a clamping element movably connected to the wrench body and having
a rear end;a front end;a sliding bar formed on the rear end of the clamping element, slidably mounted in the sliding slot and engaging the thumbscrew, and having
a rear side;a front side; andmultiple teeth formed on and protruding from the rear side of the sliding bar, spaced apart at intervals, extending into the mounting recess, and engaging the thumbscrew to enable the sliding bar to move relative to the head when the thumbscrew is rotated relative to the head;a ribbed slab formed on and protruding from the front side of the sliding bar, mounted in the sliding slot, and having
a front side extending out of the front side of the connecting block via the sliding slot; andan inner side facing the curved slot of the head; anda movable jaw formed on and protruding from the front side of the ribbed slab opposite to the sliding bar, facing the fixed jaw, and having
a rear end formed on and protruding from the front side of the ribbed slab;a front end;an inner side;an engaging surface formed on the inner side of the movable jaw between the rear end and the front end of the movable jaw, and facing the inner side of the fixed jaw and the curved slot; anda positioning block formed on and protruding upwardly from the inner side of the movable jaw at the rear end of the movable jaw, and having an inner side; and a ratcheting jaw being a curved block capable of sliding forward and retracting backward inside the curved slot of the head and having
an outer surface having a shape corresponding to the inner surface of the curved slot to allow the ratcheting jaw to slide inside the curved slot of the head;an inner surface facing the inner side of the movable jaw;a front portion;a rear portion;a top face;a bottom face;two mounting boards formed on the rear portion of the ratcheting jaw, spaced apart at an interval, being parallel with each other, and slidably mounted in the curved slot of the head, and each one of the mounting boards having
a top face;a bottom face;a front side;a guide hole being a curved hole, formed through the top face and the bottom face of the mounting board, and aligning with the guide hole of the other mounting board; anda pressing protrusion formed on and protruding from the front side of the mounting board;a receiving recess formed in the ratcheting jaw between the two mounting boards and communicating with the guide holes of the two mounting boards;an engaging surface formed on the inner surface of the ratcheting jaw and being opposite to the two mounting boards;an abutting surface formed aslant on and protruding from the inner surface of the ratcheting jaw adjacent to the engaging surface;an engaging protrusion formed in the inner surface of the ratcheting jaw between the engaging surface and the abutting surface;a holding recess formed in the rear portion of the ratcheting jaw, communicating with the receiving recess and the two guide holes, and having a closed inner end; andan elastic element mounted in the holding recess and having two ends respectively abutting the closed inner end of the holding recess and the positioning pin.