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US 11,376,720 B2Granted
High strength wrench
AssigneeKabo Tool Company
InventorChih-Ching Hsieh
Life of this patent
Estimating the term…
Abstract
A high strength wrench includes a head portion, a shaft and a handle. A length of the shaft is multiple times of a length of the handle. At least one slot extends along a longitudinal direction of the shaft and is formed at a circumferential surface of the shaft. A cross section shape of the shaft has a structural profile of an outer side with a relatively greater thickness and an inner portion of a relatively smaller thickness. Accordingly, the shaft has a greater structural strength to allow the wrench to bear operations of high torque.
Claims10
A high strength wrench, comprising:
- a head portion, a shaft and a handle;
- the head portion disposed to a front end of the shaft;
- the handle disposed to a rear end of the shaft, the handle and the shaft integrally formed as a single piece;
- a driving member arranged in the head portion;
- a length of the shaft configured to be multiple times of a length of the handle;
- and at least one slot extending along a longitudinal direction of the shaft and formed at a circumferential surface of the shaft;
- a cross section shape of the shaft having a structural profile of an outer side with a relatively greater thickness and an inner portion of a relatively smaller thickness.
4 more elements
Dependencies are inferred from the claim text.