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US 7,730,835 B2Granted
Holding apparatus for holding a flexible plate on a circumferential surface of a holder of a printing machine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorTorao Iwamoto
Life of this patent
Estimating the term…
Abstract
A holding apparatus holds a flexible plate wound on a circumferential surface of a holder of a printing machine. A holding apparatus includes a hole section made in the holder along an axial direction of the holder, a groove section made by notching the circumferential surface of the holder along the axial direction to establish a connection with the hole section and accept insertion of a leading edge end portion and trailing edge end portion of the plate, a tension bar inserted and fitted into the hole section for engaging the trailing edge end portion of the plate, and a rotating mechanism provided in the hole section for rotating the tension bar.
Claims7
A holding apparatus for holding a flexible plate, comprising:
- a holder for holding the flexible plate around a circumferential surface thereof;
- a hole section formed in the holder along an axial direction of the holder;
- a groove section formed on the circumferential surface of the holder along the axial direction to connect with said hole section for accepting insertion of one edge as a leading edge end portion and another edge as a trailing edge end portion of the plate;
- a tension bar inserted and fitted into said hole section for engaging the trailing edge end portion of the plate;
- and
- a rotating mechanism provided in said hole section for rotating said tension bar,
- wherein said rotating mechanism comprises:
- a first supporting shaft rotatably and slidably inserted and fitted into an engaging hole formed at one end portion of the tension bar;
- a second supporting shaft inserted and fitted into another engaging hole formed at the other end portion of the tension bar for limiting a relative rotation of the second supporting shaft with respect to the tension bar within a predetermined range;
- a first torsion spring wound around the first supporting shaft for engaging between the one end portion of the tension bar and one end portion of the first supporting shaft;
- a second torsion spring wound around the second supporting shaft for engaging between the other end portion of the tension bar and one end portion of the second supporting shaft;
- a first operating portion formed at said one end portion of the first supporting shaft;
- a second operating portion formed at said one end portion of the second supporting shaft;
- a first stopper fixing the first supporting shaft at a position where a predetermined biasing force develops at the first torsion spring;
- and
- a second stopper fixing the second supporting shaft at a mounting position where the trailing edge end portion is set in the groove section.
13 more elements
A holding apparatus for holding a flexible plate, comprising:
- a holder for holding the flexible plate around a circumferential surface thereof;
- a hole section formed in the holder along an axial direction of the holder;
- a groove section formed on the circumferential surface of the holder along the axial direction to connect with said hole section for accepting insertion of one edge as a leading edge end portion and another edge as a trailing edge end portion of the plate;
- a tension bar inserted and fitted into said hole section for engaging the trailing edge end portion of the plate;
- and
- a rotating mechanism provided in said hole section for rotating said tension bar,
- wherein said rotating mechanism comprises:
- a first supporting shaft rotatably and slidably inserted and fitted into an engaging hole formed at one end portion of the tension bar;
- a second supporting shaft inserted and fitted into another engaging hole formed in the other end portion of the tension bar for limiting a relative rotation of the second supporting shaft with respect to the tension bar within a predetermined range;
- a first torsion spring wound around the first supporting shaft for engaging between the one end portion of the tension bar and one end portion of the first supporting shaft;
- a second torsion spring wound around the second supporting shaft for engaging between the other end portion of the tension bar and one end portion of the second supporting shaft;
- a first operating portion formed at said one end portion of the first supporting shaft;
- a second operating portion formed at said one end portion of the second supporting shaft;
- a first stopper fixing the first supporting shaft at a position where a predetermined biasing force develops at the first torsion spring;
- and
- a second stopper for fixing the second supporting shaft to one of a mounting position at which the trailing edge end portion is set in said groove section, a fastening position at which the trailing edge end portion is drawn into said groove section and the plate is fastened onto a circumferential surface of the holder, and
- a withdrawing position at which the trailing edge end portion is released from the interior of said groove section.
14 more elements
A holding apparatus for holding a flexible plate, comprising:
- a holder for holding the flexible plate around a circumferential surface thereof;
- a hole section formed in the holder along an axial direction of the holder;
- a groove section formed on the circumferential surface of the holder along the axial direction to connect with said hole section for accepting insertion of one edge as a leading edge end portion and another edge as a trailing edge end portion of the plate;
- a tension bar inserted and fitted into said hole section for engaging the trailing edge end portion of the plate;
- and
- a rotating mechanism provided in said hole section for rotating said tension bar,
- wherein said rotating mechanism comprises:
- a first supporting shaft rotatably and slidably inserted and fitted into an engaging hole formed at one end portion of the tension bar;
- a second supporting shaft inserted and fitted into another engaging hole formed in the other end portion of the tension bar for limiting a relative rotation of the second supporting shaft with respect to the tension bar within a predetermined range;
- a first torsion spring wound around the first supporting shaft for engaging between the one end portion of the tension bar and one end portion of the first supporting shaft;
- a second torsion spring wound around the second supporting shaft for engaging between the other end portion of the tension bar and one end portion of the second supporting shaft;
- first operating means formed at said one end of the first supporting shaft and operated to provide an urging force to the first torsion spring;
- second operating means formed at said one end of the second supporting shaft for adjusting rotational phase position of the tension bar;
- first fixing means for fixing the first supporting shaft at a position where a predetermined biasing force develops in the first torsion spring;
- and
- second fixing means for fixing the second supporting shaft to one of a mounting position at which the trailing edge end portion is set in said groove section, a fastening position at which the trailing edge end portion is drawn into said groove section and the plate is fastened onto a circumferential surface of the holder, and
- a withdrawing position at which the trailing edge end portion is released from the interior of said groove section.
14 more elements
Dependencies are inferred from the claim text.