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US 2021/0260920 A1Published application
Braking caster
AssigneeZenithen USA LLC d/b/a Z Company
InventorsAndrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng
Life of this patent
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Abstract
A braking caster is provided that includes casters, a frame, braking plates, and springs. One end of a spring is hung on to the spring hook of the brake plate, and the other end is hung on to the frame. As the unstable status is caused by the spring swinging with the brake plate to the position of the rivet, the manually driven brake handle bypasses the unstable status, and can achieve stable braking and released statuses.
Claims5
A braking caster that includes caster, frame, braking plates, and springs, comprising:
- the casters are hinged to the frame through wheel axles;
- braking is achieved by braking plates on the casters;
- each brake plate has rivet hole, spring hook, brake hook, and brake handle;
- the brake plate utilizes the rivet hole to connect to the frame in a movable way;
- one end of the spring is hung on to the spring hook of the brake plate, and the other end is hung on to the frame or hinge;
- as the brake plate swings, the swing radius of the spring hook is smaller than the swing radius of the spring, and when the spring swings accordingly to the position of the rivet hole, the spring is extended to the longest and least stable status;
- braking status is achieved when it swings to one side, and released status is achieved when it swings to the other side;
- when when in braking status, the brake plate is under the spring action of the spring, and the brake hook is inserted into the brake gear socket that moves with the caster.
5 more elements
Dependencies are inferred from the claim text.