Fall protection device
AssigneeYoke Industrial Corp.
InventorWei-Chieh Hung
Life of this patent
Estimating the term…
Abstract
A fall protection device includes a frame, a rotation unit, a safety belt, and a braking unit. The rotation unit is rotatably disposed in the frame; the safety belt is wound up on the rotation unit, and adapted to be pulled to drive a rotation of the rotation unit. The braking unit includes a braking plate, a braking block, and a stopper. The braking plate is connected to the rotation unit, rotates with the rotation unit coaxially. The braking block is pivotally connected to the braking plate, and includes a stopping part. The stopping part of the braking block can be spun out by a centrifugal force produced by a rotation of the braking plate, and abuts against the stopper to limit the rotation of the rotation unit. The braking block includes an abutted part. The stopper is disposed in a movement path of the abutted part.
Claims7
A fall protection device, comprising a frame, a rotation unit, a safety belt, and a brake unit;
- wherein, the rotation unit is rotatably disposed in the frame;
- and the safety belt is wound up on the rotation unit, and adapted to be pulled to drive a rotation of the rotation unit;
- the brake unit comprises a braking plate, a braking block, and a stopper;
- the braking plate is connected to the rotation unit and is rotated with the rotation unit coaxially;
- the braking block comprises a pivot-joint part pivotally connected to the braking plate, and comprises a stopping part;
- the stopping part of the braking block can be spun out by a centrifugal force produced by a rotation of the braking plate to abut against the stopper to limit the rotation of the rotation unit;
- the fall protection device is characterized in that:
- the braking block, including an abutted part, wherein the abutted part and the stopping part are respectively disposed on a two opposite sides of the pivot-joint part;
- the abutted part moves with a rotation of the braking plate along a movement path;
- and the stopper is disposed in the movement path of the abutted part;
- wherein the braking block pivotally swings between a closing position and an expanding position;
- in normal situations when the fall protection device operates normally, the braking block is at the closing position, when the abutted part passes by the stopper, the abutted part is abutted against by the stopper to make the braking block swing pivotally so the abutting positioning of the abutted part against the stopper is gradual when the safety belt is pulled in the normal situations;
- wherein the stopping part abuts against the stopper to stop a rotation of the rotation unit only when the braking block is at the expanding position, wherein the braking plate includes a periphery side;
- an outer fringe of the abutted part is protruded in an opposite direction of the pivot center of the braking block, and is beyond the periphery side;
- and when the abutted part passes by the stopper, the abutted part passes by with the outer fringe and abuts against the stopper.
Dependencies are inferred from the claim text.