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US 6,039,317 AGranted
Gripper releasing device signature conveyor
AssigneeGrapha-Holding AG
InventorFelix Kramer
Life of this patent
Estimating the term…
Abstract
A transport system (1) is provided for removing individual signatures (2) from a transport flow. The system includes grippers (3) which are attached in substantially equal distance therebetween to an endless loop pulling means for holding the signatures (2), and an actuating device (11) causing the grippers (3) to open, with the actuating device (11) displacing a lever arm (13) which is connected to the moveable gripper element (10), to a laterally spaced-apart guide rail (12).
Claims11
An apparatus for transporting signatures comprising.
- endless loop pulling means (5);
- a plurality of grippers (3), each including a lever arm (13), a stationary gripping element (9) and a movable gripping element (10) for providing an open and a close position of each gripper, said plurality of grippers (3) being attached in substantially equal distance from each other to said endless loop pulling means (5);
- an actuating device (11) counterbalancing a biasing force of a spring (34) so as to displace each moveable gripping element to the open position said actuating device (11) having two ends, the actuating device (11) being driven from its rest position and acting on the lever arm, wherein one end of said actuating device (11) facing away from the lever arm (13) is pivotally supported, and between its two ends the actuating device (11) is pivotally coupled to a connecting rod (20) which is supported by a revolving crank (21) disposed on a drive shaft (28);
- and
- a control rotor (30) secured to said drive shaft (28), wherein said control rotor (3) cooperates with a stationary initiator (31) for initiating one of braking of said revolving crank (21) and holding of said actuating device (11) in the home position.
2 more elements
An apparatus for transporting signatures comprising:
- a guide assembly (6);
- endless loop pulling means (5) guided by said guide assembly;
- a guide rail (12) offset relative to said guide assembly;
- a plurality of grippers (3), each including a lever arm (13), a stationary gripping element (9) and a movable gripping element (10) displacable between an open and a closed position, said plural grippers (3) being attached substantially equidistant from each other to said endless loop pulling means (5);
- an actuating device (11) positioned to serve as a guide path to transfer contact of the lever arm of each gripping element (3) from that of said guiding assembly (6) to said offset guide rail (12) while counteracting a biasing force of a spring (34) so as to displace each movable gripping element to the open position, said actuating device (11) having two ends, the actuating device (11) being driven from its rest position and acting on the lever arm (13), wherein one end of said actuating device (11) facing away from the lever arm (13) is pivotally supported, and between its two ends the actuating device (11) is pivotally coupled to a connecting rod (20) which is supported by a revolving crank (21) disposed on a drive shaft (28);
- and
- a control rotor (30) secured to said drive shaft (28), wherein said control rotor (3) cooperates with a stationary initiator (31) for initiating one of braking of said revolving crank (21) and holding of said actuating device (11) in the home position.
4 more elements
Dependencies are inferred from the claim text.