초록 ▼

A gripper conveyor comprises a moving conveyor chain (1) which is provided with grippers (3), each of which includes a fixed clamping jaw (31), a pivotal clamping jaw (33) and a spring element (36) which biases respective grippers towards their closed positions and an opening mechanism (6; 41, 42, 6

A gripper conveyor comprises a moving conveyor chain (1) which is provided with grippers (3), each of which includes a fixed clamping jaw (31), a pivotal clamping jaw (33) and a spring element (36) which biases respective grippers towards their closed positions and an opening mechanism (6; 41, 42, 68) which functions to open selected grippers (3) while the conveyor chain (1) is moving. The pivotal clamping jaw (33) of the gripper (3) is connected to a manoeuvering arm (37) which is activated by the opening mechanism. The manoeuvering arm (37) is mounted for limited pivotal movement in relation to the movable clamping jaw (33). An end-position element (45; 371) is provided for defining a pivotal end-position of the manoeuvering arm in a direction away from the movable clamping jaw. A biasing element (35) which is weaker than the spring element (36) functions to bias the manoeuvering arm (37) in a direction towards its end position.

대표청구항 ▼

A gripper conveyor comprising a moving conveyor chain (1) which is provided with grippers (3) each of which includes a fixed clamping jaw (31), a pivotal clamping jaw (33) and a spring means (36) which permanently biases the gripper towards a closed position, and an opening mechanism (6; 41, 42, 68)

A gripper conveyor comprising a moving conveyor chain (1) which is provided with grippers (3) each of which includes a fixed clamping jaw (31), a pivotal clamping jaw (33) and a spring means (36) which permanently biases the gripper towards a closed position, and an opening mechanism (6; 41, 42, 68) which functions to open selected grippers (3) while the conveyor chain (1) is moving, wherein the pivotal jaw (33) of the gripper (3) is connected to a manoeuvering arm (37) which is actuable by the opening mechanism, characterized in that the manoeuvering arm (37) is mounted for limited pivotal movement in relation to the movable clamping jaw (33); in that an end-position means (45; 371) is arranged to define a pivot end-position of the manoeuvering arm in a direction away from the movable clamping jaw; and in that the conveyor also includes a biasing means (35) which is weaker than the spring means (36) and which functions to bias the manoeuvering arm (37) in a direction towards its end position.