Emergency descending device

Details Emergency descending device Emergency descending device

A - Human Necessities

62

B

227/9

A62B 1/20 (2006.01)

Patent

CA 2002960

This invention relates to an emergency descending device having a life line, one end of which is adapted to be fixed at a high position, the other end of which is adapted to be extended to a low position, and a descending apparatus movably affixed around the life line and usually kept at a high position before operation. The descending apparatus is adapted to suspend a person and carries the person along the life line at a low speed from a high position to a low position. The improvement is characterized by the descending apparatus comprising a decelerating element which is a tubular member axially passed by the life line, forming a contact surface within the tubular member, and in addition, the contact surface being corrugated so as to increase the friction between the contact surface and the life line and reduce the descending speed of the descending apparatus while it suspends a person and lowers him/her from the high position.

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