Arrangement for damping lateral sways of a rope-like means fixed to an elevator car

摘要

The object of the invention is an arrangement for damping lateral sways of a rope-like means fixed to an elevator car in an elevator hoistway, the bottom end of which rope-like means comprises an upward opening bottom loop. A detachable damping means producing a mass effect is disposed to be supported by the top surface of the bottom loop.

主权项

1. An arrangement for damping lateral sways of a rope or cable fixed to an elevator car in an elevator hoistway of an elevator, the arrangement comprising:
a freely hanging damper supported on a top surface of an upward opening bottom loop of the rope or cable, the freely hanging damper including,
a first roller configured to rotate on a first shaft, and to enable the freely hanging damper to move freely relative to the top surface of the upward opening bottom loop in a direction of a longitudinal axis of the rope or cable when the elevator car moves upward and downward,at least two second rollers, each of the at least two second rollers being configured to rotate on a corresponding one of at least two second shafts, the at least two second rollers and corresponding second shafts being arranged at respective sides of the rope or cable, and being arranged substantially perpendicular to the first roller and the first shaft,a third roller configured to rotate on a third shaft, the third roller and third shaft being arranged opposite the first roller and the first shaft, and below the upward opening bottom loop of the rope or cable, anda pin suspension configured to hold additional weights, the pin suspension being arranged below the third roller and the upward opening bottom loop of the rope or cable.