Abstract: The present invention aims at full-automatic adjustment apparatus for gripper-base height in regularly engaging condition without clutch means. Apparatus according to the invention comprises operation shaft 28 which is co-centered with cylinder axis 16 and is movable in the axial direction of cylinder; the shaft being equipped with rack portion 32 at optional position in the axial direction of cylinder and rotation engagement portion 36 at the extruded end from cylinder axis; adjustment shaft 54 which is rotary provided at the optional position in the axial direction of cylinder to the radial direction and is rotated upon receiving the force from the rack portion 32; the shaft 54 being connected by way of rotation displacement means 58 to gripper-base 22 which is adjustably provided in the radial direction; and drive means 44 which is connected to said rotation engagement portion 36 and moves said operation shaft 28 in the axial direction of cylinder.

Abstract: The present invention relates to sheet-fed satellite-type printing press and aims at versatile satellite-type press by which printing mode can easily be modified. For this purpose, a part of side frames (12) corresponding to the circumference of common pressure cylinder (10) is cut out to form common installing portion (34) and printing unit (38) or sheet perfecting unit (40) can be installed into the common installing portion (34). Thereby, multi-color printing or perfecting printing can be performed at will.

Abstract: Plate transfer apparatus is disclosed which is suitable for satellite-type printing press and excels in operability with small space. For these purposes, plate transfer apparatus comprises transfer means (26) which has functions in it's normal and opposite rotations, for ejecting the used plate (52) outwards and feeding new plate (50) to the plate cylinder (16), flat sustaining board (30) provided above the transfer means (26) in order to prepare new plate (30), one end of the board (30) is swingably supported and the other end is branched, and drive means (36) for swinging the sustaining board (30) in order to sink the branched end into transfer path of the transfer means (26).

Abstract: An apparatus for integrally and conveniently adjusting printing pressures of blanket cylinders in a satellite-type printing press is provided. Printing pressure is adjusted all together by rotating eccentric bearing means (26) of a plurality of blanket cylinders (18) by wheel (34) which is fixed to primary axis (28), penetrating through the center of common pressure cylinder (10).

Abstract: Sheet-fed printing press, especially a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if only single-side printing is required a sheet perfecting apparatus does not intervene in the sheet transfer path. In the course of printing with a plurality of printing units (26) provided in satellite-like manner around a common pressure cylinder (10), a sheet perfecting apparatus (36) is provided for inverting the sheet of material for double-side printing. The sheet perfecting apparatus is separable from the sheet transfer path for printing on one side only. The sheet perfecting apparatus is made up of a first transfer cylinder (38) a perfecting cylinder (40) and a second transfer cylinder (42).

Abstract: Sheet perfecting apparatus for a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if sheet perfecting is not needed the sheet is printed on one side only. In the course of printing with a plurality of printing units (26) which are provided in satellite-like manner around a common pressure cylinder (10), a plurality of chain gripper conveyors (38, 42) are arranged in parallel and are connected via a perfecting cylinder (40) to invert the sheet of material.

Abstract: Sheet-fed printing press, especially, satellite-type printing press is disclosed by which double-side printing is performed with single satellite-type press and, in case sheet reversing is not needed, sheet perfecting apparatus does not intervene with sheet transfer path.

Abstract: Sheet perfecting apparatus for satellite-type printing press is disclosed by which double-side printing is performed with single satellite-type press and, in case sheet perfecting is not needed, register error is not caused.

Abstract: Power feeder apparatus for a rotary shaft of a printing press having a circuit substrate 22 with concentric circular circuits 24 whose centers coincide with an axis of rotary shaft 10 and provided at the tip end of the shaft 10 on which electric appliances can be mounted. A support substrate 36 with elastic contacts 42 in correspondence with the circular circuits 24, is slidably provided at the stationary side of the apparatus in opposed relationship to the circuit substrate 22. An actuator 50 serves for moving the support substrate 36 in the direction of the circuit substrate 22.

Abstract: Plate cylinder of sheet-fed printing press is disclosed whose circumference is covered by minute glass beads 14 of approximately uniform diameters in order to decrease a friction force between a plate as well as to prevent the generation of static electricity.

Abstract: A method of registering press plates on plate cylinders used in a sheet-fed press for multicolor printing, in which register information is obtained by using edges of the press plates as references. Each press plate is stretched around a plate cylinder with its front edge and one side edge abutted against gripping references on the plate cylinder. A press plate register measuring device similarly uses the edges of the press plate as references, with the press plate in the same positional relationship as on the press cylinder. On the measuring device deviations between references marks on the plates and benchmark references are measured and utilized to adjust the position of the plate cylinders to bring the printing plates into registered printing positions.

Abstract: A coupling structure for a reversing mechanism of a printing press, having a fixed gear (18), a pivotable regulating gear (20), and a plurality of parallel tightening bolts (30) extending in a regularly spaced manner around a cylinder shaft (12) of the reversing mechanism. A one-way clutch (54) transmits limited tightening torque to the bolts (30) to hold gears (18) and (20) together in an engaged state, whereas in a release state, the bolts (30) are freely loosened. A center gear 56 having an internal gear (62) transmits torque to the one-way clutch from an external drive motor (80).

Abstract: A structure of an intermediate cylinder of a sheet-feed press is disclosed.The present invention comprises a main shaft 10, a front edge gripper holder 12 formed integrally with the main shaft 10, having a group of front edge grippers 20 aligned in an axial direction, and having an arcuate outer surface section, holding discs 24 disposed at both side portions of the main shaft 10 in such a fashion that the rotation thereof relative to the main shaft 10 can be adjusted, and a rear edge gripper holder 22 having a group of rear edge grippers 28 aligned in the axial direction between the holding discs 24, and having a sheet member 38 disposed similarly on the outer peripheral surfaces between the holding discs 24, having an arcuate section, and partially overlapping the outer surface of the front edge gripper holder 12.

Abstract: The specification discloses an operation stand provided to a sheet-fed press.This operation stand has stopper means set up at the end portions of a table surface of the operation stand and adapted to restrict the positions of the longitudinal and lateral edges of paper, a suction means adapted to apply vacuum to said paper through numerous suction holes provided in the table, so as to bring the paper into close contact with and fix the same to the table surface, a detecting means adapted to scan the paper with a detector with reference to guide shafts extending under the table surface in the longitudinal and lateral directions of the paper and detect the positions of the longitudinal and lateral edges of the paper, an arithmetic means for calculating the size of the paper on the basis of the information on the positions of the edges thereof from the detecting means, and a display means for digitally displaying the size of the paper calculated by the arithmetic means.

Abstract: A reversing gripper apparatus of a one side/perfecting printing press is disclosed. This reversing gripper apparatus comprises a receiving portion wherein a gripper pad fixed to the external circumference of a reversing cylinder grips a sheet of paper in combination with gripper members and a space for withdrawal, the gripper members comprise a combination of a master gripper provided on a common shaft and an auxiliary gripper opposed to the master gripper, the master gripper is formed with a width sufficient to cover the receiving portion of the gripper pad and the point of the auxiliary gripper at the same time and is controlled by a common shaft, and the auxiliary gripper has such a width as to be partly opposed to the width of the master gripper and is controlled with the common shaft as the center. By adopting this structure, the gripping function, register accuracy, and the gripping force of the reversing gripper apparatus are greatly increased.