Equipment for engaging a safety braking device for a lift cage

Details Equipment for engaging a safety braking device for a lift cage Equipment for engaging a safety braking device for a lift cage

B - Operations, Transporting

66

B

B66B 5/04 (2006.01) B66B 5/16 (2006.01)

Patent

CA 2427198

These actuating levers (8.2) for engaging the safety brake wedges of a safety braking device are arranged at a rotary axle (8.1). The actuating lever (8.2) has a longitudinal slot (8.21) matched to the diameter of the rotary axle (8.1), wherein the actuating lever (8.2) is freely movable in the direction of the rotary axle (8.1) and in the direction of the actuating lever (8.2), A torsion spring (8.5) fixes the actuating lever (8.2) in the direction of the rotary axle (8.1). One spring end (8.51) presses the actuating lever (8.2) downwardly, wherein the movement of the actuating lever (8.2) is limited by a lower abutment (8.6). The other spring end (8.52) is detachably connected with the support (8.4). An upper abutment (8.7) limits the movement of the actuating lever (8.2) upwardly. The lower abutment (8.6) and the upper abutment (8.7) are each held at a respective end of a T-shaped shackle (8.8), wherein the shackle is fixedly connected with the rotary axle (8.1). The freely movable actuating levers (8.2) facilitate access to the safety brake wedges of the safety braking device and prevent erroneous tripping.

Leviers de commande (8.2) servant à engager les cales de freins de sécurité d'un dispositif de freinage de sécurité et qui sont placés sur un axe rotatif (8.1). Le levier de commande (8.2) comporte une fente longitudinale (8.21) correspondant au diamètre de l'axe rotatif (8.1) de façon à ce que le levier (8.2) puisse bouger librement dans la direction de l'axe rotatif (8.1) et dans l'axe du levier de commande (8.2). Un ressort de torsion (8.5) maintient le levier de commande (8.2) dans la direction de l'axe rotatif (8.1). L'une des extrémités du ressort (8.51) pousse le levier de commande (8.2) vers le bas, tandis que le mouvement du levier de commande (8.2) est limité par un butoir inférieur (8.6). L'autre extrémité du ressort (8.52) est fixée de façon amovible au support (8.4). Un butoir supérieur (8.7) limite le mouvement du levier de commande (8.2) vers le haut. Le butoir inférieur (8.6) et le butoir supérieur (8.7) sont maintenus à une extrémité par un étrier (8.8), lequel est fixé à l'axe de rotation (8.1). Ces leviers de commande à mouvement libre (8.2) facilitent l'accès aux cales des freins de sécurité du dispositif de freinage de sécurité et empêchent le déclenchement du dispositif par erreur.

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