Bicycle hub fastening structure
First Claim
1. A bicycle hub fastening structure comprising:
- a nut member including an internally threaded bore and a first contact surface;
a rotation prevention member including a second contact surface arranged to selectively contact the first contact surface, a frame restricting part configured and arranged to restrict rotation of the rotation prevention member relative to a frame of a bicycle, and a hub axle restricting part configured and arranged to restrict rotation relative to the hub axle; and
a retaining member attached to one of the nut member and the rotation prevention member with the retaining member being arranged to connect the nut member and the rotation prevention member together in a freely rotatable manner.
1 Assignment
0 Petitions
Accused Products
Abstract
A bicycle hub fastening structure employs an easy-to-connect connecting structure to improve the ease and efficiency with which an internally geared bicycle hub is fastened to a bicycle frame. The fastening structure has a nut member, a rotation prevention member and a connecting part. The nut member has a first contact surface and a threaded bore. The rotation prevention member has a cylindrical main body with a second contact surface contacting the first contact surface, a first (frame) restricting part configured to restrict rotation relative to a bicycle frame, and a second (hub axle) restricting part configured to restrict rotation relative to the hub axle. The connecting part has a retaining member attached to the nut member and serves to connect the nut member and the rotation prevention member together in a freely rotatable manner.
7 Citations
20 Claims
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1. A bicycle hub fastening structure comprising:
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a nut member including an internally threaded bore and a first contact surface;
a rotation prevention member including a second contact surface arranged to selectively contact the first contact surface, a frame restricting part configured and arranged to restrict rotation of the rotation prevention member relative to a frame of a bicycle, and a hub axle restricting part configured and arranged to restrict rotation relative to the hub axle; and
a retaining member attached to one of the nut member and the rotation prevention member with the retaining member being arranged to connect the nut member and the rotation prevention member together in a freely rotatable manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A bicycle hub comprising:
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a hub axle configured and arranged to be fastened to a frame of a bicycle;
a hub shell rotatably supported around an outside circumference of the hub axle; and
a hub fastening structure mounted on the hub axle, the hub fastening structure including a nut member threaded onto the hub axle and a first contact surface, a rotation prevention member including a second contact surface arranged to selectively contact the first contact surface, a frame restricting part configured and arranged to restrict rotation of the rotation prevention member relative to a frame of a bicycle, and a hub axle restricting part engaging the hub axle to restrict rotation relative to the hub axle, and a retaining member attached to one of the nut member and the rotation prevention member with the retaining member being arranged to connect the nut member and the rotation prevention member together in a freely rotatable manner.
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Specification