Closing arrangement for sliding doors and the like
First Claim
1. A closing arrangement for sliding doors or similar elements of the type adapted to slidably move between closed and open positions by a driving force applied to elongated connecting links for moving the door along a lengthwise track, comprising a frame;
- a rotor having an axis of rotation and operatively connected to said connecting links so that the sliding movement of the door causes a rotation movement of said rotor;
a force accumulating flat spiral spring mounted within said rotor for providing a torsional moment of said rotor and having two ends, one end of said spring being rigidly supported on said frame and the other end thereof being tightly clamped on said rotor;
brake means operatively connected to said rotor for limiting the closing speed of the sliding door; and
coupling means operatively connected to said rotor for preventing the open sliding door from moving inadvertantly backward to its closed position, said coupling means including an electromagnetic coupling and a friction coupling connected thereto, said friction coupling being arranged to limit the torsional moment of said rotor.
1 Assignment
0 Petitions
Accused Products
Abstract
Closing arrangement for sliding doors adapted to move between closed and open positions along a lengthwise guide track. The arrangement includes a rotor operatively connected with connecting links connected to the door and arranged to move along the guide track. Brake arrangement is mounted with a drive member mounted in coaxial alignment with the rotor shaft. The closing arrangement is provided with a coupling device which is operatively connected to the rotor shaft and comprises an electromagnetic coupling and a friction coupling mounted on a common shaft. The coupling device prevents an inadvertant backward movement of the open sliding door to its closed position.
44 Citations
11 Claims
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1. A closing arrangement for sliding doors or similar elements of the type adapted to slidably move between closed and open positions by a driving force applied to elongated connecting links for moving the door along a lengthwise track, comprising a frame;
- a rotor having an axis of rotation and operatively connected to said connecting links so that the sliding movement of the door causes a rotation movement of said rotor;
a force accumulating flat spiral spring mounted within said rotor for providing a torsional moment of said rotor and having two ends, one end of said spring being rigidly supported on said frame and the other end thereof being tightly clamped on said rotor;
brake means operatively connected to said rotor for limiting the closing speed of the sliding door; and
coupling means operatively connected to said rotor for preventing the open sliding door from moving inadvertantly backward to its closed position, said coupling means including an electromagnetic coupling and a friction coupling connected thereto, said friction coupling being arranged to limit the torsional moment of said rotor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a rotor having an axis of rotation and operatively connected to said connecting links so that the sliding movement of the door causes a rotation movement of said rotor;
Specification