| 摘要 |
The present invention provides a machine-plate mounting device for a printer which can attach a cylindrical machine plate to the printer more easily and accurately. A machine-plate mounting device 3 is fixedly provided on a machine-plate drive shaft 1 of the printer for mounting a machine plate 2 having a forme area 5 provided on a portion of an outer circumferential surface of a machine plate body 4 formed from an elastic material into a cylindrical shape and an engagement portion 6 projecting radially inward from an inner circumference of the machine plate body 5 and extending in an axial direction. The machine-plate mounting device 3 includes a machine-plate cylinder section 12 fixedly provided on the machine-plate drive shaft 1 and having, on its outer circumference, a cylindrical machine-plate mounting surface 14 on which the machine plate 2 is mounted from a front-end side of the machine-plate drive shaft 1. The machine-plate mounting device 3 is configured such that the machine-plate cylinder section 12 has, on its outer circumference, a groove 21 for circumferential positioning into which the engagement portion 6 of the machine plate 2 is fitted from the front-end side of the machine-plate drive shaft 1, a stopper 20 for axial positioning with which an end portion of the machine plate 2 comes into contact, and a machine-plate fixation member 24 which presses a portion, other than the forme area 5, of the machine plate 2 mounted on the machine-plate cylinder section 12 from a radial inside direction toward a radial outside direction so as to bring the machine plate 2 into fixed close contact with the machine-plate mounting surface 14 of the machine-plate cylinder section 12. |
