Brake system for manual hoisting

摘要

A brake system comprising a structural unit adapted to be connected to a structure and defining a channel for the axial movement of a hoisting rope therein. A brake unit has a brake pad and an arm secured to one another for concurrent movement and movably mounted to the structural unit by at least one joint. The arm is in operative contact with a user end of the hoisting rope to be displaced with the brake pad between a hoisting position by a tautening of the hoisting rope, in which hoisting position the brake pad is distanced from the hoisting rope in the structural unit to allow movement of the hoisting rope in both pulling and releasing directions of the axial movement, and a braking position by a release of tension in the hoisting rope, in which the brake pad is displaced into contact with the hoisting rope.

主权项

1. A brake system for hoisting rope, comprising:
a structural unit adapted to be connected to a structure and defining a channel for the axial movement of a hoisting rope therein; and a brake unit having a brake pad and an arm secured to one another for concurrent movement and movably mounted to the structural unit by at least one joint, the arm being in operative contact with a user end of the hoisting rope to be displaced with the brake pad between a hoisting position by a tautening of the hoisting rope, in which hoisting position the brake pad is distanced from the hoisting rope in the structural unit to allow movement of the hoisting rope in both pulling and releasing directions of the axial movement, and a braking position by a release of tension in the hoisting rope, in which the brake pad is displaced into contact with the hoisting rope by the arm reacting to the release in tension in the hoisting rope at the user end, whereby the hoisting rope is held captive between the brake pad and a surface of the channel in the braking position.