Awning and roller shutter automatic disengaging release - comprises bushing reamed to receive wedge sliding in slots in shaft projecting from winch automatic control when shutter closed.

摘要

The automatic disengaging release, for drum (2) and winch (3) operated awnings and roller shutters, has a bushing (4) between the projecting shaft (5) of the winch and the drum. The bushing is reamed for a wedge (6), which slides in slots (5c,5d) in the shaft, to engage with slots in the reaming. The wedge is automatically controlled in the indents in the reaming when the free end of the shutter reaches the bottom box. There is a winch and bushing at each end of the shutter drum USE/ADVANTAGE - Improved design, no adjustment required, smooth operation.