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US 2017/0361430 A1Published application
Positive stop ratchet mechanism
AssigneeMatco Tools Corporation
InventorJeff Mitcheltree
Life of this patent
Estimating the term…
Abstract
Examples of the present disclosure relate to ratchets and include ratchets having a positive stop ratchet mechanism which controls the movement of a pawl and/or pusher with various geometric configurations and using various materials.
Claims20
A ratchet wrench comprising:
- a head portion having a back side and a front side with a head cavity formed therein wherein the head cavity includes a gear cavity, a pawl cavity and a lever bore;
- a gear having gear teeth and a drive body, the gear rotatably engaged within the gear cavity wherein the drive body extends outwardly from the front side of the head portion for engaging and rotating a workpiece;
- a pawl having pawl teeth which is movably engaged within the pawl cavity wherein the pawl teeth are positioned to engage and disengage the gear teeth;
- an actuator for biasing a face of the pawl opposite the pawl teeth where the actuator engages a lever body of a lever within the lever bore and the lever body is movable from at least a first position to a second position by a lever handle;
- and
- where the lever body includes one or more register surfaces for contacting one or more sidewalls of the lever bore having opposing flat sections as it is moved from the first position to the second position.
3 more elements
A lever bore formed within an insert, the lever bore comprising:
- one or more sidewalls having two opposing spaced apart flat sections for contacting one or more register surfaces of a lever body as the lever body is moved from a first position to a second position.
Dependencies are inferred from the claim text.