Printing – Flexible-sheet-securing devices
Patent
1982-01-04
1983-10-11
Burr, Edgar S.
Printing
Flexible-sheet-securing devices
B41F 2712
Patent
active
044085311
ABSTRACT:
A groove having parallel walls is formed in the longitudinal direction of a blanket cylinder.
A pair of retainers are attached to and along both ends of a blanket. The opposing end surfaces of the pair of retainers have alternating convexities and concavities arranged to permit the opposing surfaces to slide up and down relatively to each other. The total width of the pair of retainers with the convexities and concavities mating with each other coincides with the width of the groove. The pair of retainers are guided by the walls of the groove such that each retainer can be moved up and down along the associated wall independently of each other as a plurality of tensioning bolts are tightened or loosened.
Whereby, the tension can be applied only to the portion of the blanket which tends to be slack, in response to the change of the slacking portion due to the change of direction of rotation of the blanket cylinder, while applying no tension to the portion of the blanket irrespective of the direction of rotation to the portion of the blanket which is in close and good contact with the blanket cylinder to preserve the good contacting condition.
REFERENCES:
patent: 3885486 (1975-05-01), Kirkpatrick et al.
patent: 3893394 (1975-07-01), Fusco et al.
patent: 4261262 (1981-04-01), Jeschke
patent: 4337700 (1982-07-01), Etchell et al.
Komatsu Akitoshi
Okamura Yuichi
Burr Edgar S.
Tokyo Kikai Seisakusho Ltd.
Wiecking David A.
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