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US 12,233,514 B2Granted
Adjustable ratchet wrench
OwnerHaisheng Liuinventor
Life of this patent
Estimating the term…
Abstract
An adjustable ratchet wrench is provided that includes a base plate and a top plate rotatably coupled to the base plate. A plurality of grippers may form an interior polygonal shape within a center of the base plate and the top plate for gripping a workpiece. A plurality of push rods coupled to the grippers may move the grippers to change the size of the interior polygonal shape as the top plate is rotated with respect to the base plate.
Claims19
An adjustable wrench, comprising:
- a base plate;
- a top plate rotatably coupled to the base plate;
- a plurality of grippers, which form an interior polygonal shape within a center of the base plate and the top plate;
- and
- a plurality of push rods, each push rod coupled to a respective gripper,
- wherein:
- the plurality of grippers and the plurality of push rods are configured to fit between the base plate and the top plate, and
- as the top plate is rotated with respect to the base plate, the push rods move the grippers to change a size of the interior polygonal shape.
5 more elements
An adjustable wrench, comprising:
- a base plate;
- a top plate rotatably coupled to the base plate;
- a plurality of grippers, which form an interior polygonal shape within a center of the base plate and the top plate;
- and
- a plurality of push rods, each push rod coupled to a respective gripper,
- wherein:
- the plurality of grippers is attached to the base plate and the plurality of push rods is attached to the top plate, and
- as the top plate is rotated with respect to the base plate, the push rods move the grippers to change a size of the interior polygonal shape.
5 more elements
A method of using an adjustable wrench comprising:
- providing the adjustable wrench, wherein the adjustable wrench includes:
- a base plate;
- a top plate rotatably coupled to the base plate;
- a plurality of grippers, which form an interior polygonal shape within a center of the base plate and the top plate;
- and
- a plurality of push rods, each push rod coupled to a respective gripper,
- wherein:
- the plurality of grippers and the plurality of push rods are configured to fit between the base plate and the top plate, and
- as the top plate is rotated with respect to the base plate, the push rods move the grippers to change a size of the interior polygonal shape;
- turning the top plate with respect to the base plate of the adjustable wrench, to adjust the size of the interior polygonal shape of the adjustable wrench to fit a workpiece;
- fitting the interior polygonal shape onto the workpiece, wherein when the interior polygonal shape is placed onto the workpiece, each side of the workpiece is engaged by the interior polygonal shape;
- and
- rotating the adjustable wrench in a first direction to one of tighten and loosen the workpiece.
10 more elements
Dependencies are inferred from the claim text.