B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/200
B23P 11/00 (2006.01) B21D 39/03 (2006.01) B31F 5/08 (2006.01) B41F 30/04 (2006.01)
Patent
CA 1063334
ABSTRACT OF THE DISCLOSURE A hand device for fastening a holding bar on a printing blanket and method of fastening such holding bar is provided. The device in- cludes a frame structure; a backup roller rotatably mounted on the frame struc- ture a pressure roller carried by the frame structure for rotation relative thereto and in spaced relation from the backup roller; an adjustable stop means for controlling the maximum spacing between the pressure roller and backup roller, a carrier supporting the pressure roller and means supporting the carriers and pressure roller for sliding movement toward and away from the back-up roller; and means for relatively moving the device and bar with the pressure roller relatively urging the legs toward each other with an end portion of the blanket disposed between the legs, to thereby progressively to deform at least one of the legs along its entire length into clamping engagement against the end portion of the blanket. The method included the steps of disposing an end portion of the printing blanket between the diverging legs of the holding bar; laying the blanket on a horizontal table which has a roughly T-shaped rail structure defining an edge thereof; placing the bar with its bight against a vertically disposed crossarm of the T-shaped rail structure; providing a hand portable device comprising, a frame structure, at least one backup roller rotatably mounted on the frame structure, a carrier slidably carried by the frame structure for movement toward and away from the backup roller, and a pressure roller rotatably supported by the carrier; placing the pressure roller against one of the legs of the bar with the backup roller disposed outwardly of the other of the legs of the bar; relatively moving the hand portable device and bar causing the pressure roller relatively to urge the one leg toward the other, thereby progressively to de- form the bar along its entire length into positive engagement against the end portion of the blanket; and guiding the device using guiding means thereon in engagement with the cross arm during the relatively moving step. This provides a simple, inexpensive portable device, and an improved method for fastening a holding bar on a printing blanket.
271647
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