Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Roll type
Patent
1982-03-29
1985-03-12
Staab, Lawrence J.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Roll type
160309, 744115, 74425, E06B 908, E06B 920, F16H 5710, F16H 116
Patent
active
045038996
ABSTRACT:
A locking mechanism for a gear drive such as the gear drive of a roll-type shutter or awning. One of the gear shafts, preferably the driving gear shaft, is rotatably supported such as to be longitudinally displaceable, and carries at its free end a transverse pin. A stationary member is provided with radial grooves engageable by the projecting end of the pin when the shaft is longitudinally displaced under the action of a coil spring. The gear is coupled to the shaft by a pin transversely disposed through the shaft and projecting in longitudinal grooves formed in a portion of the gear. The locking mechanism is unlocked by introducing the end of a crank handle into a coupling socket mounted on the other end of the shaft, and applying longitudinal pressure with the crank handle, such as to disengage the locking mechanism prior to hand-driving the shaft in rotation by way of the crank handle.
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Bednarek Michael David
Security Shutter Corp.
Staab Lawrence J.
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