Quick release devices

摘要

A quick release device includes an axle tube, a pressing unit, and a driving unit. The axle tube extends through a bicycle frame, and has a plurality of through holes. The pressing unit includes a plurality of pressing members disposed respectively and movably within the through holes in the axle tube, and a pushing member movable axially in the axle tube. The driving unit includes a movable shaft. When the driving unit is changed to a locking state, the movable shaft moves the pushing member such that the pushing member pushes and moves the pressing member to press against the bicycle frame. When the driving unit is changed to a release state, the movable shaft moves the pushing member away from the pressing members to allow the pressing members to move radially away from the bicycle frame.

主权项

1. A quick release device adapted to be mounted to a bicycle frame, said quick release device comprising:
an axle tube unit extending along a first axis and adapted to extend through the bicycle frame, said axle tube unit including an axle tube and a plurality of through holes formed through a tube wall of said axle tube and disposed around said first axis; a pressing unit including a plurality of pressing members disposed respectively and movably within said through holes, and a pushing member movable axially in said axle tube; and a driving unit convertible between a locking state and a release state and including a movable shaft connected to said pushing member, wherein, when said driving unit is changed to said locking state, said movable shaft moves said pushing member along said first axis such that said pushing member pushes and moves said pressing members to press against the bicycle frame, and when said said driving unit is changed to said release state, said movable shaft moves said pushing member away from said pressing members to allow said pressing members to move radially away from the bicycle frame.