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US 11,298,807 B2Granted
Ratcheting box torque wrench
AssigneeHubbell Incorporated
InventorsZaheer Firoz Poonawalla, Seydou Diop, Adrian Beau Candelaria
Life of this patent
Estimating the term…
Abstract
A ratcheting box torque wrench is provided. The wrench includes a head and a handle connected to the head. The head has a slipping torque limiter that applies torque to a fastener in a first direction (T) up to a torque limit before slipping in the first direction (T) and ratchets in a second direction (R).
Claims22
A ratcheting box torque wrench, comprising:
- a head having a slipping torque limiter, the slipping torque limiter applying torque to a fastener in a first direction (T) up to a torque limit before slipping in the first direction (T) and ratcheting in a second direction (R);
- and
- handle depending from the head, wherein the head includes a first face plate, a second face plate, and a spacer plate, the spacer plate has includes a central opening configured to rotatably receive the slipping torque limiter therein, the first and second face plates being secured on opposite sides of the spacer plate to secure the slipping torque limiter therein, wherein the slipping torque limiter comprises a gear wheel, a single roller, and a single coil spring, the gear wheel comprising an inner surface and an outer surface, the inner surface being configured to directly apply torque to the fastener with a configuration selected from a group consisting of a twelve-point wrench, a six-point wrench, a star-point wrench, and a four-point wrench, the outer surface comprising a plurality of teeth having a space between adjacent teeth, the single coil spring being in direct contact with the single roller and biasing the single roller into the space of a respective one of the plurality of teeth with a holding force (F).
A ratcheting box torque wrench, comprising:
- a handle;
- and
- a head depending from the handle, the head comprising a first face plate, a second face plate, a spacer plate, and a slipping torque limiter,
- wherein the slipping torque limiter comprises a gear wheel, a single roller, and a single coil spring,
- wherein the gear wheel comprises an inner surface and an outer surface, the outer surface having a plurality of teeth having a space between adjacent teeth, the inner surface being configured to apply torque to a fastener,
- wherein the first and second face plates are secured on opposite sides of the spacer plate to secure the slipping torque limiter therebetween such that the single coil spring is in direct contact with the single roller and biases the single roller into the space of a respective one of the plurality of teeth with a holding force (F) and such that the inner surface of the gear wheel is mateable with a fastener through openings in the first and second face plates, respectively, and
- wherein the outer surface is configured so that the slipping torque limiter applies torque to the fastener in a first direction (T) up to a torque limit before overcoming the holding force (F) and slipping in the first direction (T) and is configured to ratchet in a second direction (R).
4 more elements
Dependencies are inferred from the claim text.