Counterbalance device, in particular for a medical x-ray unit, h

Details Counterbalance device, in particular for a medical x-ray unit, h Counterbalance device, in particular for a medical x-ray unit, h

1997-08-29

1999-05-04

Walsh, Donald P.

Winding, tensioning, or guiding

Reeling device

With spring motor

2423821, B65H 7548

Patent

active

058994017

ABSTRACT:
Counterbalance device (1), in particular for a medical X-ray device, with a drum (2) which is at least partly encapsulated in a housing (12) and is mounted so that it can rotate in the housing on a stationary shaft (11). The drum has an integrated first spring element (7) which applies a bias to the drum, and a first cable (5) which supports a weight (40). The cable is guided in a groove (3) on the drum and can be wound or unwound around the drum. An independent second spring element (8) is connected within the drum in parallel to the first spring element. A second cable is guided in an additional groove (4) on the drum and is connected to the weight. As a result, there is a separate safety device for each spring element and each cable, to prevent the uncontrolled descent of the weight in the event that the spring element and/or the coil breaks or fails.

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