| 摘要 |
This device acts on each of two ropes in a mutually opposite sense and is characterised in that for each rope (8 and 9) the device comprises an articulately fitted arm (1 and 2), and the two arms (1 and 2) are arranged in a converging arrangement and thus converge towards their free ends (6 and 7) and are adapted to be simultaneously actuated by a pushbutton (12) being operable for pressing them at said free ends (6 and 7). The pushbutton (12) comprises a spring (15) being fit to biassedly keep it arranged in its passive arrangement and each of the ropes (8 and 9) is secured to the respective free end (6 and 7) of the respective arm (1 and 2), these latter being linked in a pin-jointed connection (3 and 4) to a tubular body (5) with the ropes (8 and 9) extending through its inside. A cowling (13) is arranged on the tubular body (5) and has an opening (14) shiftingly guiding the pushbutton (12) during its actuation.
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