Importance

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Abstract

The fall protection device includes a main member having a chamber inside. An axle runs across the chamber. A rotary disc and a brake member synchronously spin around the axle. The rotary disc has a cylinder with an axial channel, where the axle runs through the axial channel, and a roll of safety belt wraps around the cylinder. A ratchet ring is configured on the main member having teeth along an inner wall and a greater diameter than that of the cylinder. The ratchet ring is joined to the main member through a flexible band. When the safety belt pulls the rotary disc to accelerate until the brake member engages the ratchet ring's inner teeth, the flexible band slows down the ratchet ring's rotation.

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First Claim