Bicycle frame whose bearings will not be pressed
AssigneeChosen Co., Ltd.
InventorChing-Shu Chen
Life of this patent
Estimating the term…
Abstract
A bicycle frame includes a mandrel, a hub and freewheel assembly, two bearings, two first locking nuts, two fork end members, and two second locking nuts. Thus, when each of the first locking nuts is screwed onto the respective first threaded section of the mandrel and when each of the second locking nuts is screwed onto the respective second threaded section of the mandrel and rested on the respective fork end member, the respective fork end member will not be driven by the respective second locking nut to push the respective first locking nut to prevent the respective bearing from being compressed by the respective first locking nut so as to maintain the normal operation of the respective bearing.
Claims18
A bicycle frame, comprising:
- a mandrel having two opposite ends each having an inner side formed with a first threaded section and an outer side formed with a second threaded section having a threading direction different from that of the first threaded section;
- a hub and freewheel assembly rotatably mounted on the mandrel and having two opposite ends each formed with a bearing hole to receive at least one bearing;
- two first locking nuts each screwed onto the respective first threaded section of the mandrel and each rested on and contacting with the respective bearing;
- two fork end members each having a distal end mounted on the mandrel and each rested on the respective first locking nut;
- two second locking nuts each screwed onto the respective second threaded section of the mandrel and each rested on and contacting with the respective fork end member;
- wherein the first threaded section of the mandrel is located between the hub and freewheel assembly and the second threaded section of the mandrel;
- each of the fork end members is mounted on the second threaded section of the mandrel.
Dependencies are inferred from the claim text.