Pulley with unlockable clamp

摘要

A pulley with an unlockable clamp, comprising a rotary roller, a pivoting trigger designed to release and clamp the rope against the roller, and control means to keep the trigger in the inactive position disabling action of the clamp, wherein the control means comprise a lock fixed onto the first flange-plate and able to be actuated from a locked position to an unlocked position to enable movement of the trigger to the inactive position.

主权项

1. A pulley with an unlockable clamp, comprising:
a cylindrical roller rotatably mounted on a first flange-plate for guiding a rope; a first spindle supported by the first flange-plate; a trigger pivotable between an inactive position and an active position to respectively release and clamp the rope against the roller; and a control mechanism to keep the trigger in the inactive position disabling action of the clamp, and allowing said roller to rotate freely, wherein the control mechanism comprises a lock directly attached to the first flange-plate via a lock spindle such that the lock is pivotable around the lock spindle between a locked position and an unlocked position to enable movement of the trigger to the inactive position, and a movable second flange-plate is swivelably fitted on the end of the first spindle between a closed position and an open position.