Fall-arresting mechanism

Details Fall-arresting mechanism Fall-arresting mechanism

A - Human Necessities

62

B

A62B 1/18 (2006.01) A62B 1/16 (2006.01) E06C 7/18 (2006.01)

Patent

CA 2745718

For a generally vertical or curved structure, such as a ladder, tower, wall, or pole, which is equipped with a generally vertical or curved rail, a fall- arresting mechanism comprises an upper plate and a lower plate. Each plate has an aperture, through which the generally vertical rail extends. The mechanism further comprises an elongate, linking member, such as a strap, which is connected to one of the upper and lower plates. The upper and lower plates are linked, by a parallelogram linkage on each of two sides, so that the upper plate is pressed against the rail, in a given direction, while the lower plate is pressed against the rail, in an opposite direction, when the elongate, linking member is pulled downwardly or downwardly and away from the rail. The upper and lower plates are biased in the indicated directions. The mechanism further comprises a friction-enhancing wheel, which is biased against the rail.

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