A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
227/20, 24/9
A62B 35/04 (2006.01)
Patent
CA 1049231
ABSTRACT A safety device comprising a runner which can be attached to a user's safety belt and threaded onto a sus- pended safety line and which has a housing in which line gripping means is movable between an unlocked condition in which the runner is free to move along said line and a locked condition in which the line is gripped, and operating means for said line gripping means which provides externally of the runner housing an attachment point for a personal safety belt and is operatively associated with said line gripping means to cause movement thereof towards locked condition responsive to sudden downward acceleration of said attachment point relative to the runner housing, with the improvement that said operating means comprises first and second link members each of which is pivotally attached to the runner housing and a bar member pivotally attached to said link members to form therewith and with the runner housing a parallel linkage, that said attachment point is disposed at least as high as the level of the top of the runner housing when the runner is oriented for use on a vertical line with the operating mechanism in its runner free position, and that said attachment point is disposed below the level of the line gripping means when the operating mechanism is in its runner locked condition. Movement of the line-gripping means is preferably actuated by one or more cams located on a said link member. - 1 -
239840
Barrow Hepburn Equipment Limited
Na
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