초록 ▼

A non-contact actuator assembly for a newspaper gripper includes a magnet disposed on a gripper release arm. The release arm passes beneath an electromagnet disposed adjacent the workpath of the gripper. The position of the gripper is sensed and a suitable signal provided to an associated voltage su

A non-contact actuator assembly for a newspaper gripper includes a magnet disposed on a gripper release arm. The release arm passes beneath an electromagnet disposed adjacent the workpath of the gripper. The position of the gripper is sensed and a suitable signal provided to an associated voltage supply. A pulse width modulated voltage quickly and effectively induces a magnetic field in the electromagnet as the magnet in the release arm passes thereby and the magnetic field collapses quickly so as not to actuate the next gripper. The magnetic field urges the release arm to an actuated position so that opposed clamping jaws of the gripper open to release a gripped sheet product.

대표청구항 ▼

A non-contact actuator comprising: a gripper having first and second clamping jaws movable relative to one another between open and closed positions, said gripper adapted to selectively receive an associated sheet product between said clamping jaws; means operatively connected to said clamping jaws

A non-contact actuator comprising: a gripper having first and second clamping jaws movable relative to one another between open and closed positions, said gripper adapted to selectively receive an associated sheet product between said clamping jaws; means operatively connected to said clamping jaws for moving said first clamping jaw toward said closed position with said second clamping jaw; means operatively connected to said clamping jaws for releasing said clamping jaws from said closed position to an open position; and, magnetic means operatively associated with said releasing means for actuating said clamping jaws to said release position.