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US 11,041,523 B2Granted
Universal joint
AssigneeFine Forge Industry Corporation
InventorKuo-Lung Chen
Life of this patent
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Abstract
A universal joint includes a driving portion and a joint head. The driving portion includes a ball nest and a polygonal column disposed within the ball nest. The joint head includes a working end portion and a ball head portion, and the ball head portion is rotatably and swingably disposed within the ball nest. A shaped of the ball head portion corresponds to a shaped of the ball nest, and the polygonal column is co-rotatable with the ball head portion. The ball head portion including a polygonal groove, and the polygonal column is inserted within the polygonal groove.
Claims9
A universal joint, including:
- a driving portion, configured to be assembled with a power tool, including a ball nest and a polygonal column disposed within the ball nest;
- and
- a joint head, including a working end portion and a ball head portion, the ball head portion being rotatably and swingably disposed within the ball nest, a shape of the ball head portion corresponding to a shape of the ball nest, the ball head portion being co-rotatable with the polygonal column, the ball head portion including a polygonal groove, the polygonal column being inserted within the polygonal groove,
- wherein one of the ball nest and the polygonal column has a square hole, and the other of the ball nest and the polygonal column has a square column which is releasably inserted into the square hole, and
- wherein an outer periphery of the square column includes a plurality of dodge slots radially disposed therearound, and each of the plurality of dodge slots corresponds to a turning edge of an opening of the square hole.
2 more elements
Dependencies are inferred from the claim text.