Sheet member holding device
AssigneeFuji Photo Film Co., Ltd.
InventorTakashi Fukui
Life of this patent
Estimating the term…
Abstract
When a sheet member or printing plate is closely held on a peripheral surface of a drum, no scratch is made on the peripheral surface, edges of the sheet member are held with certainty, and the sheet member is prevented from being partially lifted from the peripheral surface, thereby preventing deterioration of image quality. Since clamp portions are rotated in a direction in which they tension the sheet member due to a centrifugal force acting thereon, the sheet member is held in close contact with the peripheral surface. Further, since the clamp portions are disposed at one end portion in a width direction of the plate, gripper margins of the sheet member is reduced and an image-recordable area thereof can be increased.
Claims36
A device for pressing and fixing a sheet member onto a rotating drum around which the sheet member is wound, the device comprising:
- (a) a support structure including a support which is mounted at a predetermined position on a peripheral surface of the drum;
- (b) a plate having two end portions, between which the plate is pivotably connected to the drum through the support structure;
- (c) a clamp element pivotably connected to one of the end portions of the plate, the sheet member being disposed between the clamp element and the peripheral surface;
- and
- (d) a resilient element connected to the other of the end portions of the plate, which resilient element is resiliently deformed when the support is mounted to the drum and, by applying a force to the other end portion of the plate, causes the one end portion of the plate to pivot toward the peripheral surface and press the clamp element against the sheet member, thereby resulting in a pressing force against the sheet member.
A device for pressing and fixing a sheet member onto a rotating drum around which the sheet member is wound, the device comprising:
- (a) a support structure including a support which is mounted at a predetermined position on a peripheral surface of the drum;
- (b) a plate having two end portions, between which the plate is pivotably connected to the drum through the support structure;
- (c) a clamp element connected to one of the end portions of the plate so as to be translationally movable, the sheet member being disposed between the clamp element and the peripheral surface;
- and
- (d) a resilient element connected to the other of the end portions of the plate, which resilient element is resiliently deformed when the support is mounted to the drum and, by applying a force to the other end portion of the plate, causes the one end portion of the plate to pivot toward the peripheral surface and press the clamp element against the sheet member, thereby resulting in a pressing force against the sheet member.
A device for pressing and fixing a sheet member onto a rotating drum around which the sheet member is wound, the device comprising:
- (a) a support structure including a support which is mounted at a predetermined position on a peripheral surface of the drum;
- (b) a plate having two end portions, between which the plate is pivotably connected to the drum through the support structure;
- (c) a clamp element attached to one of the end portions of the plate, the clamp element comprising a resiliently deformable portion, and the sheet member being disposed between the clamp element and the peripheral surface;
- and
- (d) a resilient element connected to the other of the end portions of the plate, which resilient element is resiliently deformed when the support is mounted to the drum and, by applying a force to the other end portion of the plate, causes the one end portion of the plate to pivot toward the peripheral surface and press the clamp element against the sheet member, thereby resulting in a pressing force against the sheet member.
A device for pressing and fixing a sheet member onto a rotating drum around which the sheet member is wound, the device comprising:
- (a) a support structure including a support which is mounted at a predetermined position on a peripheral surface of the drum;
- (b) a first plate having two end portions, between which the first plate is pivotably connected to the drum through the support structure;
- (c) a second plate pivotably connected to one of the end portions of the first plate;
- (d) a clamp element attached to the second plate, the clamp element comprising a resiliently deformable portion, and the sheet member being disposed between the clamp element and the peripheral surface;
- and
- (e) a resilient element connected to the other of the end portions of the first plate, which resilient element is resiliently deformed when the support is mounted to the drum and, by applying a force to the other end portion of the first plate, causes the one end portion of the first plate to pivot toward the peripheral surface and press the clamp element against the sheet member, thereby resulting in a pressing force against the sheet member.
A device for pressing and fixing a sheet member onto a rotating drum around which the sheet member is wound, the device comprising:
- (a) a support structure including a support which is mounted at a predetermined position on a peripheral surface of the drum;
- (b) a plate having two end portions, between which the plate is pivotably connected to the drum through the support structure;
- (c) a clamp element connected to one of the end portions of the plate so as to be translationally movable, the sheet member being disposed between the clamp element and the peripheral surface;
- (d) a resilient element connected to the other of the end portions of the plate, which resilient element is resiliently deformed when the support is mounted to the drum and, by applying a force to the other end portion of the plate, causes the one end portion of the plate to pivot toward the peripheral surface and press the clamp element against the sheet member, thereby resulting in a pressing force against the sheet member;
- and
- (e) a tensioning element provided at least at the other end portion of the plate, which, when the drum rotates, applies a pulling force to the clamp element via the plate due to centrifugal force.
Dependencies are inferred from the claim text.