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(11) | EP 2 769 952 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Safety device for elevators and elevator comprising said device |
| (57) The device comprises braking means of the elevator car or counterweight acting on
guides (9) of the elevator, and is characterized in that said braking means comprise
a switching element (1) that can be arranged in at least: a first position in which
said braking means can function as a safety gear to prevent the free fall or the uncontrolled
movement of the car or of the counterweight; and a second position in which said braking
means function as a pit buffer to absorb the energy of the car or of the counterweight
if a malfunction causes the car or the counterweight to surpass end stop positions,
or as a pit buffer and as a safety gear. The present invention allows performing safety gear and pit buffer functions, eliminating conventional pit buffers. |