Patent ID: 8181741
Filing Date: 2012-05-22
Classification: A62B

Abstract:
1. A life saving implement comprising: a prime motor assembly having a motor body; a winding drum installed in the prime motor assembly to wind a first wire rope; a braking drum installed on a side of the winding drum to control an RPM of the winding drum; a first braking unit installed on a lower portion of the braking drum to control an RPM of the braking drum; a second braking unit installed on an upper portion of the braking drum to control the RPM of the braking drum; and a passenger vehicle connected to the first wire rope and moved by the rotation of the winding drum and the braking drum, wherein the first braking unit is configured to reduce a release speed of the first wire rope while the passenger vehicle descends, the first braking unit including: wherein the second braking unit is configured to reduce a descending speed of the passenger vehicle when the passenger vehicle reaches a predetermined height from a ground, the second braking unit including: a plurality of second wire ropes configured to support the plurality of speed reduction linings from the motor body, and having hook rings connected to the speed reduction linings; a plurality of pins connected to the hook rings and formed to be removable to allow the speed reduction linings to contact the winding drum; and a plurality of third wire ropes located between the pins and the first wire rope, respectively, and configured to be hooked on the first wire rope in a sequence so as to draw the pins one by one.