| 摘要 |
The invented working platform consists of two supporting platforms (3, 4), each of which travelling on one mast (1) through the mediation of a rack attached to the mast (1) and through the mediation of a drive formed by at least one electric motor gearbox (5) with a pinion and being fastened on the supporting platforms (3, 4), and further it comprises a bridge (6) suspended between the supporting platforms (3, 4) with a possibility of incline with respect to each of the supporting platforms (3, 4). At the same time on the supporting platform (3, 4) respectively the bridge (6) there is disposed at least one electric switch (18) being connected in a driving circuit of a drive of at least one of the supporting platforms (3, 4), and this switch (18) interacts with an elongate element protruding from the bridge (6) respectively the supporting platform (3, 4). This elongate element is performed as a pull rod (15) being rotatably coupled with a rotary slotted link (14), in the slot (16) of which, made on circumference thereof reaches a swinging control element (17) of the electric switch (18).
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