EP1542873A1

EP1542873A1 - Cylinder for a printing machine

Info

Publication number: EP1542873A1
Application number: EP03753300A
Authority: EP
Inventors: Karl Robert SCHÄFER
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 2002-09-25
Filing date: 2003-09-12
Publication date: 2005-06-22
Anticipated expiration: 2023-09-12
Also published as: ES2354421T3; WO2004028809A1; EP1878572A2; DE10244574A1; DE50313402D1; AU2003271531A1; EP1542873B1; ATE494143T1

Abstract

Print machine roller has a servo unit (3) pressurized with a pressure medium and a control valve (41-44) for controlling the operating pressure. Once operated, the control valve remains in a self-locking switch position with an open through-flow path for the pressure medium open. Alternately, and or additionally, it can be operated by a two-part servo or actuator temporarily connected to the roller.

Description

description

Cylinder of a printing press

The invention relates to cylinders of a printing press according to the preamble of claim 1, 3 or 42.

From DE 69 30 610 U, a cylinder of a rotary printing press is known, wherein several preferably hydraulically operated pistons are provided for displacing a holding means for an elevator arranged on the cylinder, the pressure source and a line system leading to the pistons and having shut-off valves in a cylinder recess are arranged. Resilient return elements which counteract the pressure medium-loaded pistons are preferably assigned in order to be able to obtain an automatic release of the clamped elevator when the pressure medium pressure is ended.

From DE 41 37 948 A1 a pressure plate clamping device for a printing press is known, wherein several fluid cylinders connected by lines and these group-controlling valves, preferably mechanical valves or electrically operated solenoid valves, are mounted on a base plate, the base plate being in one hollow plate cylinder is used, the fluid provided outside of the plate cylinder from a fluid source, preferably compressed air, being fed via a rotary coupling to the plate cylinder and on the base plate at branches to the valves.

DE 100 58 996 C1 discloses a cylinder of a printing press with a plurality of fastening devices arranged next to one another in its axial direction and with one or more reversibly deformable hollow bodies which can be acted upon by a pressure medium, at least two feeds in one channel of the cylinder are arranged for the supply of the hollow body to which the pressure medium can be applied, the hollow body to which the pressure medium is applied brings a holding means for an elevator fastened to the cylinder into an operating position releasing the fastening. The hollow body is preferably designed as a tube.

DE 43 24 746 C2 discloses a reversing drum of a sheet-fed rotary printing press, wherein pneumatic cylinders arranged in the reversing drum with a shift rod are each assigned a roller lever valve which is likewise arranged in the reversing drum.

From DE 42 44 077 02, the filling and venting of hoses when clamping and removing flexible pressure plates bent at their ends on a forme cylinder or removing from a forme cylinder is known.

From DE 39 43 119 01 a rotary transmitter for introducing compressed air into a rotating part of a printing press is known. In particular, compressed air is transmitted to the cylinder in a plurality of pressure lines on a peg mounted centrally on the end face of a cylinder of the printing press.

WO 01/56796 A1 discloses an arrangement for emptying and filling a hose to which a working fluid, in particular compressed air, can be applied, with directional valves being used.

The invention has for its object to provide cylinders of a printing press.

The object is achieved by the features of claim 1, 3 or 42.

The advantages that can be achieved with the invention are, in particular, that an im Cylinder arranged and actuated by an actuating means remains in an operating position releasing the elevator arranged on the cylinder, as long as the pressure medium is supplied to the control valve. A control signal permanently applied to the control valve is not required to maintain this operating position of the holding means. Rather, a short-term, especially impulsive actuation of the control signal, as z. B. by a sudden movement of a plunger arranged outside the cylinder on a mechanically operable control valve, sufficient to move the holding means in the operating position releasing an elevator. Because a control signal permanently acting on the control valve is not required, the cylinder remains rotatable even when an inexpensive mechanically operated control valve is used. Nonetheless, the mechanically operated control valve can be operated remotely, e.g. B. from a press control station by z. B. the plunger is remotely operated. The rotatability of the cylinder with a holding means in the operating position releasing an elevator is important when changing, in particular automatically changing an elevator. In addition, a plurality of actuating means arranged in the cylinder can be actuated independently individually or in groups, which is made possible by the proposed arrangement for controlling the actuating means. Even for the main supply of the fluid, despite a plurality of actuating means to be controlled, only a single first supply line is required, which is advantageous for the configuration of the connecting element that connects the part of the first supply line connected to the pressure source to the cylinder-side part of the first supply line. In the event of a malfunction or failure in the first supply line of the fluid for controlling the actuating means, emergency operation is possible by means of a second supply line that can be connected to the cylinder by hand.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

Show it: Figure 1 is a perspective view of an elevator.

2 shows a simplified sectional illustration of a holding device for an elevator to be mounted on a cylinder;

3 shows an arrangement for controlling the actuating means in the cylinder according to a first embodiment;

Fig. 4 shows an arrangement for controlling the actuating means in the cylinder according to a second embodiment.

An elevator 01 (Fig. 1) z. B. is designed as a plate-shaped printing form or as a carrier plate carrying a printing blanket, has a substantially rectangular surface. The surface has a support side, hereinafter referred to as support surface 02, with which the elevator 01 rests on a lateral surface 07 of a cylinder 06 in the assembled state. The support surface 02 has a length L and a width B, the length L z. B. dimensions between 400 mm and 1300 mm and the width B z. B. can assume dimensions between 280 mm and 1500 mm. The side opposite the support surface 02 is a work surface which, in the event that the elevator 01 is designed as a printing form, is provided with a printed image or at least can be provided with a printed image. The elevator 01 has two opposite ends 03; 04 each with preferably angled hanging legs 13; 14, each of which preferably extends over the width B of the elevator 01. The surface of the elevator 01 is flexible at least along the length L and can be adapted to the curvature of the cylinder 06 when the elevator 01 is applied to the lateral surface 07 of a cylinder 06 of a printing press (FIG. 2). In the assembled state of the printing form, the length L of the surface thus runs in the direction of the circumference of the cylinder 06, whereas the width B of the surface extends in the axial direction of the cylinder 06. The hanging legs 13; 14 of the elevator 01 are fastened by means of a holding device, the holding device being arranged in a channel 08, the channel 08 generally extending in the axial direction to the cylinder 06. An end 03 of elevator 01 which is aligned with the production direction P of cylinder 06 is referred to as its leading end 03, whereas the opposite end 04 is the trailing end 04 of elevator 01. The production direction P of the cylinder 06 is the direction of rotation of the cylinder 06 during the printing process. At least the ends 03; 04 of the elevator 01 with the hanging legs 13; 14 consist of a rigid, for. B. metallic material, e.g. B. made of an aluminum alloy. The material thickness D of the elevator 01 (FIG. 1) or the material thickness D of at least the hanging legs 13 is usually; 14 a few tenths of a millimeter, e.g. B. 0.2 mm to 0.4 mm, preferably 0.3 mm. The elevator 01 thus exists as a whole or at least at its ends 03; 04 made of a dimensionally stable material so that the ends 03; 04 are permanently deformable by bending against material-specific resistance.

At least at one end 03; 04 of the elevator 01 (Fig. 1), but preferably at both ends 03; 04 are along a bending edge 11; 12 each a folded-in hanging leg 13; 14 formed, the hanging legs 13; 14 can be inserted into a narrow, in particular slot-shaped opening 09 of the channel 08 of the cylinder 06 (FIG. 2) and can be fastened there by means of a holding device. For example, based on the length L of the non-arched, flat support surface 02 of the unassembled elevator 01, at the end 03 there is a hanging leg 13 on the bending edge 11 by an opening angle α1 or at the end 04 a hanging leg 14 on the bending edge 12 by an opening angle β1 folded (Fig. 1), the opening angle 1; ß1 are usually between 30 ° and 140 °. If the opening angle α1 is assigned to the leading end 03 of the elevator 01, it is preferably of acute angle, in particular it is 45 °. The opening angle ß1 at the trailing end 04 of the Elevator 01 is often preferably formed larger than 80 ° or obtuse angle, in particular it is 85 ° or 135 °. The folded hook leg 13 at the leading end 03 has a length 113, which, for. B. is in the range of 4 mm to 11 mm, in particular between 4 mm and 8 mm, with 6 mm being the preferred dimension. The folded hook leg 14 at the trailing end 04 has a length 114, the z. B. 6 mm to 15 mm, in particular between 8 mm and 12 mm, with the shorter length being preferred, in order to remove the hanging legs 13; 14 to ensure from the opening 09 of the channel 08.

Fig. 2 shows a simplified sectional view of a cylinder 06 with an outer surface 07 and a channel 08, which has a narrow, slot-shaped opening 09 with a slot width S to the outer surface 07, the slot width S being less than 5 mm and preferably in Range from 1 mm to 3 mm. The opening 09 has a front edge 16 and a rear edge 17 in the production direction P of the cylinder 06. An acute opening angle 2 is formed between the wall 18 extending from the front edge 16 towards the channel 08 and an imaginary tangent T lying on the lateral surface 07 of the cylinder 06 on the opening 09, which is between 30 ° and 50 °, preferably 45 ° is. The beveled suspension leg 13 at the leading end 03 of the elevator 01 can thus preferably be positively attached to this front edge 16 of the opening 09 because the suspension arm 13 at the leading end 03 of the elevator 01 is preferably adapted in its opening angle α1 to the opening angle α2. The same applies to the trailing end 04 of the elevator 01. Between the wall 19, which extends from the rear edge 17 to the channel 08, and the imaginary tangent T lying on the lateral surface 07 of the cylinder 06 on the opening 09, there is an opening angle ß2 formed, which is between 80 ° and 95 °, preferably 90 °. The beveled suspension leg 14 at the trailing end 04 of the elevator 01 can thus preferably be positively attached to this rear edge 17 of the opening 09 because the beveled suspension leg 14 at the trailing end 04 of the elevator 01 is at least approximately matched in its opening angle β1 to the opening angle β2.

In channel 08 z. B. at least one preferably pivotally mounted holding means 21 and a preferably biased spring element 22, the spring element 22, the holding means 21 z. B. presses against the folded-in suspension leg 14 at the trailing end 04, which is suspended in the opening 09 at its rear edge 17, whereby the suspension leg 14 is held at the trailing end 04 on the wall 19 extending from the rear edge 17 to the channel 08 becomes. To release the pressure exerted by the holding means 21, an adjusting means 23 is provided in the channel 08, which, when actuated, pivots the holding means 21 against the force of the spring element 22. The holding device accordingly essentially consists of the holding means 21, the spring element 22 and the adjusting means 23.

The cylinder 06 described by way of example can be designed such that several, preferably identical, lifts 01 can be arranged on its lateral surface 07. If the cylinder 06 is designed as a forme cylinder, it can z. B. can be assigned with six plate-shaped printing forms. It can also be provided that more than one elevator 01 can be attached to the cylinder 06 in the direction of its circumference. So z. B. two axially extending to the cylinder 06 channels 08 may be provided with associated openings 09, which are arranged offset on the circumference of the cylinder 06 by 180 ° to each other. With this assignment of the cylinder 06 with two elevators 01 arranged one behind the other along its circumference, the leading end 03 of the one elevator 01 is fastened in the one channel 08, whereas the trailing end 04 of the same elevator 01 is fastened in the other channel 08. The same applies to the one or more elevators 01 arranged on this cylinder 06. The elevators 01 arranged next to one another in the axial direction of the cylinder 06 can also be arranged offset with respect to one another, for. B. individually or in groups each by half a length L of the elevator 01, but this requires that further channels 08 with associated openings 09 or at least with parts thereof are introduced into the cylinder 06, which along the circumference of the cylinder 06 to the two aforementioned channels 08 and openings 09 z. B. are arranged offset by 90 °. In the preferred embodiment, each elevator 01 is assigned a holding means 21 which can be actuated independently by an adjusting means 23. Other designs of a cylinder 06 are such. B. a cylinder of a folder or a transport cylinder of a sheet-fed printing press, which cylinders can also have adjusting means.

An embodiment shown in FIG. 3 sees a cylinder 06, for. B. a forme cylinder with a bale 24 in front. In this example, 26; 27 of the cylinder 06 in the axial direction centrally pin 28; 29 arranged. The cylinder 06 is on its bale 24 with several lifts 01 z. B. four elevators 01 are arranged side by side in the axial direction of the cylinder 06. In the bale 24 for each elevator 01 z. B. a holding means 21 (not shown) is provided, wherein each holding means 21 can be brought into at least two different operating positions with an associated adjusting means 23. In this example, the operating positions relate to the holding and thus fastening of an elevator 01 on the cylinder 06, which is the first operating position of the holding means 21, and a second operating position, in which the holding means 21 releases a fixed elevator 01 for removal from the cylinder 06 , Corresponding operating positions of the adjusting means 23 correspond to the different operating positions of the holding means 21.

It is advantageous to design the actuating means 23 as an elastically reversibly deformable hollow body 23 that can be acted upon with a pressure medium, in particular as a hose 23, the volume of which increases when the pressure medium is acted upon and returns to the original volume when emptied. A fluid such as e.g. B. compressed air or a hydraulic fluid. The working pressure can e.g. B. 3 to 4 bar. Preferably at least on one end face 26; 27 of the cylinder 06, a first supply line 31 for the pressure medium is provided in order to conduct the pressure medium from a first pressure source 32 arranged outside the cylinder 06 to the actuating means 23 arranged in the cylinder 06. Any necessary conveying devices such as a pump are not shown in FIG. B. insertable in the first feed line 31. At the junction of the part of the first supply line 31 going from the first pressure source 32 with the part of the first supply line 31 on the cylinder side, a first connecting element 33 is advantageously provided, which is preferably detachable and in particular rotatable in such a way that the cylinder-side part of the first supply line 31 is stationary and remains in a fixed angular orientation while the cylinder 06 and thus the part of the first feed line 31 arranged in the cylinder 06 rotates. So the first connecting element 33 z. B. a rotary union 33. The first connecting element 33 designed in this way allows the cylinder 06 to rotate freely, while the part arranged outside the cylinder 06 and the cylinder-side part of the first feed line 31 are connected to one another. As mentioned, the cylinder 06 preferably has at least one centrally arranged pin 28 in its axial direction; 29, wherein the cylinder-side part of the first feed line 31 is guided through the pin 29 to the bale 24.

In the bale 24, lines 36 to 39 branching off from the first supply line 31 are provided on at least one node 34 for distributing the pressure medium to the individual adjusting means 23. These lines 36 to 39 are connected in parallel to each other. The first feed line 31 thus forms a common supply, preferably for all the actuating means 23 arranged in the cylinder 06. Since it is provided that the actuating means 23 assigned to the holding means 21 are actuated individually and independently of one another or at least in groups, branching from the first feed line 31 is preferably for each adjusting means 23 has its own line 36 to 39. When the actuating means 23 are actuated in groups, the actuating means combined into a group can 23 can also be strung together, the group being arranged in parallel with at least one other adjusting means 23 provided in the cylinder 06.

In the lines 36 to 39 to at least two adjusting means 23, a control valve 41 to 44 is provided, the control valve 41 to 44 preferably a 2/2-way valve 41 to 44, for. B. is a shut-off valve 41 to 44, d. H. has two connections and can be brought into two different, stable switching positions. The control valves 41 to 44 can, however, as shown in FIG. 3, be designed as 3/2-way valves 41 to 44, the third connection allowing a return for the pressure medium, for. B. a vent when using compressed air or the return to a tank when using a hydraulic fluid.

The control valve 41 to 44 can be brought into a switching position with an open flow path with a preferably direct-acting mechanical actuating means 46 to 49. Thus, the control valve 41 to 44 in particular manually, for. B. operated by means of a push button arranged on the cylinder 06. However, it may also be provided, in addition to the manual actuation of the control valves 41 to 44, that outside of the cylinder 06 for preferably each control valve 41 to 44 a z. B. stationary and preferably pneumatically operated plunger 51 to 54 is provided, which by a preferably impulsive, jerky movement on the arranged in the cylinder 06, connected to the control valve 41 to 44 actuating means 46 to 49 temporarily, ie for a shorter limited time and does not act for the entire duration of the flow of the pressure medium through the control valve 41 to 44. The actuation of the control valve 41 to 44 can be remotely controlled, e.g. B. from a control center assigned to the printing press or another control device. The actuation of the control valves 41 to 44 by adjusting means arranged outside the cylinder 06, e.g. B. by a plunger 51 to 54, assumes that the cylinder 06 with the actuating means 46 to 49 of the control valves 41 to 44 can be positioned at the correct angle, that a plunger 51 to 54 and the actuating means 46 to 49 of a control valve 41 to 44 to be actuated can briefly interact with one another. To reset the plunger 51 to 54 z. B. have a spring. The control valves 41 to 44 can thus preferably be actuated by means which are not connected to the line and are not permanently connected to the cylinder 06 in order to avoid further line routing from the printing press to the rotatable cylinder 06. Alternatively, however, an electromagnetic actuating means 46 to 49 can also be provided for each control valve 41 to 44, which can preferably be actuated without contact, for. B. by a controllable, in particular remotely controllable actuating means, the actuating means carrying out the actuation by means of an electric or magnetic field.

It is preferably provided that the control valve 41 to 44 can be held and is held in the switching position with the open flow path by a control connection 56 to 59 to which the pressure medium can be applied. Due to the self-holding, the control valves 41 to 44 remain in the switch position with the open flow path as long as the pressure medium is supplied to the control valves 41 to 44. As a result, the holding means 21 actuated by the actuating means 23 also remains in the operating position releasing an elevator 01, without a permanent action on the actuating means 46 to 49 of the control valves 41 to 44 being necessary. Thus, the cylinder 06 can be easily rotated into any other angular position. To reset the control valves 41 to 44 it can be provided that a spring 61 to 64 resets the control valve 41 to 44 into a switching position with a closed flow path. In order to bring the control valves 41 to 44 into the switch position with the open flow path, they are actuated in this case against the force of the spring 61 to 64. The control valve only returns when the pressure medium is stopped at least to the control valve 41 to 44 to be reset 41 to 44 in its switching position with the closed flow path back. The control valve 41 to 44 is thus reset when the line 36 to 39 leading to the control valve 41 to 44 is depressurized or at least falls below a preset threshold value. Preferably, the pressure of the z. B. via the first supply line 31 pressure medium between two extreme values, ie a minimum value and a maximum value can be changed, wherein the change can take place continuously or abruptly. Different settings of the pressure, ie different intermediate values that can be set between the two extreme values, can be used in order to control pressure. B. to bring the actuating means 23 in different operating positions and thus have them perform different functions.

In order to ensure emergency operation in the event of a malfunction or failure of the pressure medium in the first supply line 31, a second supply line 66 is provided, which can preferably be connected to a second pressure source 67, the second supply line 66 having a part coming from the second pressure source 67 and one part on the cylinder side, in the event of a malfunction or failure of the pressure medium in the first supply line 31 as a replacement for the supply of the pressure medium via the first connecting element 33, both parts of the second supply line 66 at least temporarily with one another via a second connecting element 68, e.g. B. are manually connectable. The part of the second supply line 66 which goes out from the second pressure source 67 has a check valve 69, in particular a control valve 69, for. B. a 3/2-way valve 69, which can be brought with a preferably mechanical actuating means 71 against the force of a spring 72 into a switching position with an open flow path. The actuating means 71 can be designed as a push button and can thus be actuated manually. The spring 72 returns the control valve 69 to the original switching position with a closed flow path. The flow path is only open in this case during the time of the actuating means 71. The part of the second feed line 66 on the cylinder side is connected to the at least one node 34, from which the lines 36 to 39 branch off and to which the first feed line 31 is connected. Preferably, in the cylinder-side part of both the first feed line 31 and the second feed line 66, a check valve 73; 74 provided, e.g. B. a check valve 73; 74, which allows the flow of the pressure medium only in one direction, namely starting from the pressure source 32; 67, via the first feed line 31 or the second feed line 66, in the direction of the lines 36 to 39.

As a further embodiment, Fig. 4 z. B. a cylinder 06 formed as a blanket cylinder of a printing press. A first feed line 31 conducts a pressure medium from a first pressure source 32 via a control valve 41, e.g. B. an electromagnetically actuated 3/2-way valve 41 with a spring return, and the cylinder 06 via a simple rotary union 33. On the cylinder 06 z. B. in the axial direction of three elevators 01, z. B. rubber printing blankets, arranged side by side, the middle elevator 01 relative to the outer two elevators 01 z. B. is offset by half an elevator length. Lines 37 to 39 branch off from the first supply line 31 in the cylinder 06 at nodes 34 to the actuating means 23, with each control valve 42 to 44 in each line 37 to 39, e.g. B. a manually operable 3/2-way valve 42 to 44 is provided. The actuating means 47 to 49 of the control valves 42 to 44 can, for. B. have at least two stable operating positions by z. B. latches are provided.

LIST OF REFERENCE NUMBERS

01 elevator

02 contact surface (01)

03 end, leading (01)

04 end, trailing (01)

05 -

06 cylinder

07 lateral surface (06)

08 channel

09 opening (08)

10 -

11 bending edge (13)

12 bending edge (14)

13 hanging legs

14 hanging legs

15 -

16 front edge (09)

17 rear edge (09)

18 wall

19 wall

20 -

21 holding means

22 spring element

23 adjusting means, hollow body, hose

24 bales

25 -

26 end face (06)

27 end face (06) Cones (06) cones (06)

Supply line, first pressure source, first connecting element, first; Rotary union knot

Head of Management Head of Management

Control valve, 2/2-way valve, 3/2-way valve, shut-off valve control valve, 2/2-way valve, 3/2-way valve, shut-off valve control valve, 2/2-way valve, 3/2-way valve, shut-off valve control valve, 2/2 -Way valve, 3/2-way valve, shut-off valve

Actuators (41) Actuators (42) Actuators (43) Actuators (44)

Ram (41) Ram (42) Ram (43) Ram (44)

Control connection (41) 57 control connection (42)

58 control connection (43)

59 control connection (44)

60 -

61 spring (41)

62 spring (42)

63 spring (43)

64 spring (44)

65 -

66 supply line, second

67 pressure source, second

68 connecting element, second

69 check valve, control valve, 3/2-way valve

70 -

71 actuating means (69)

72 spring (69)

73 check valve (31), check valve (31)

74 check valve (66), check valve (31)

75 _

L length

B width

P production direction (06)

S slot width (09)

D material thickness

T tangent

113 length

114 length α1 opening angle (13) α2 opening angle ß1 opening angle (14) ß2 opening angle

Claims

Expectations

1. cylinder (06) of a printing press, the cylinder (06) having at least one actuating means (23) which can be acted upon with a pressure medium and a control valve (41 to 44) controlling the actuation of the actuating means (23), characterized in that the control valve (41 to 44) remains in a self-holding switching position with an open flow path for the pressure medium after its actuation.

2. Cylinder (06) according to claim 1, characterized in that the control valve (41 to 44) can be actuated by an adjusting means arranged outside the cylinder (06) and temporarily connected to the cylinder (06).

3. Cylinder (06) of a printing press, the cylinder (06) having at least one actuating means (23) which can be acted upon with a pressure medium and a control valve (41 to 44) controlling the actuation of the actuating means (23), characterized in that the control valve (41 to 44) can be actuated by an adjusting means which is arranged outside the cylinder (06) and is temporarily connected to the cylinder (06).

4. Cylinder (06) according to claim 3, characterized in that the control valve (41 to 44) remains in a self-holding switching position with a flow path open for the pressure medium after its actuation.

5. Cylinder (06) according to claim 1 or 3, characterized in that the actuation of the control valve (41 to 44) is impulsive.

6. Cylinder (06) according to claim 1 or 3, characterized in that the control valve (41 to 44) to remain in its self-locking switching position has a control connection (56 to 59) to which the pressure medium can be applied.

7. cylinder (06) according to claim 1 or 3, characterized in that the means for actuating the control valve (41 to 44) are remotely operable.

8. Cylinder (06) according to claim 1 or 3, characterized in that at least two actuating means (23) which can be acted upon by the pressure medium are provided.

9. Cylinder (06) according to claim 8, characterized in that at least one first supply line (31) is provided for supplying the pressure medium to the cylinder (06), in the cylinder (06) from the first supply line (31) branching lines ( 36 to 39) are provided for distributing the pressure medium to the adjusting means (23), a control valve (41 to 44) being provided in each case in the lines (36 to 39) to at least two adjusting means (23).

10. Cylinder (06) according to claim 8, characterized in that the adjusting means (23) can be actuated individually and independently of one another or at least in groups.

11. Cylinder (06) according to claim 1 or 3, characterized in that the adjusting means (23) is arranged in a channel (08) of the cylinder (06).

12. Cylinder (06) according to claim 1 or 3, characterized in that the adjusting means (23) is a hollow body (23) which can be pressurized with a pressure medium.

13. Cylinder (06) according to claim 1 or 3, characterized in that the adjusting means (23) is reversibly deformable.

14. Cylinder (06) according to claim 9, characterized in that a part of the first feed line (31) arranged outside the cylinder (06) is arranged in a stationary manner is, while a cylinder-side part of the first feed line (31) is fixedly connected to the rotatable cylinder (06).

15. Cylinder (06) according to claim 14, characterized in that a first connecting element (33) is provided between the part arranged outside the cylinder (06) and the cylinder-side part of the first feed line (31).

16. Cylinder (06) according to claim 15, characterized in that the first connecting element (33) allows rotation of the cylinder (06) without hindrance, while the part arranged outside the cylinder (06) and the cylinder-side part of the first feed line (31) are interconnected.

17. Cylinder (06) according to claim 9, characterized in that the cylinder (06) has at least on one end face (26; 27) at least one centrally arranged pin (28; 29), the first supply line (31) of the pressure medium passing through the pin (29) is guided.

18. Cylinder (06) according to claim 1 or 3, characterized in that the pressure medium is compressed air or a hydraulic fluid.

19. Cylinder (06) according to claim 8, characterized in that when the actuating means (23) are actuated in groups, the actuating means (23) combined to form a group are lined up, the group being associated with at least one other actuating means (06) provided in the cylinder (06). 23) is arranged in parallel in terms of circuitry.

20. Cylinder (06) according to claim 1 or 3, characterized in that the control valve (41 to 44) is a 2/2-way valve (41 to 44).

21. Cylinder (06) according to claim 1 or 3, characterized in that the control valve (41 to 44) is a 3/2-way valve (41 to 44).

22. Cylinder (06) according to claim 1 or 3, characterized in that the control valve (41 to 44) has a mechanical actuating means (46 to 49).

23. Cylinder (06) according to claim 22, characterized in that the actuating means (46 to 49) is a push button.

24. Cylinder (06) according to claim 22, characterized in that outside of the cylinder (06) for the control valve (41 to 44) a plunger (51 to 54) is provided, which is arranged in the cylinder (06) with which Control valve (41 to 44) connected actuating means (46 to 49) acts.

25. Cylinder (06) according to claim 24, characterized in that the tappet (51 to 54) is actuated pneumatically.

26. Cylinder (06) according to one of claims 24 or 25, characterized in that the tappet (51 to 54) has a spring return.

27. Cylinder (06) according to one of claims 24 to 26, characterized in that the plunger (51 to 54) can be operated by remote control.

28. Cylinder (06) according to claim 1 or 3, characterized in that the control valve (41 to 44) can be switched with an electromagnetic actuating means (46 to 49).

29. Cylinder (06) according to claim 1 or 3, characterized in that the pressure of the pressure medium supplied can be changed between two extreme values.

30. Cylinder (06) according to claim 29, characterized in that the pressure of the pressure medium supplied is adjustable to an intermediate value between the two extreme values.

31. Cylinder (06) according to claim 1 or 3, characterized in that a spring (61 to 64) resets the control valve (41 to 44) into a switching position with a closed flow path.

32. Cylinder (06) according to claim 31, characterized in that the spring (61 to 64) returns the control valve (41 to 44) to the switch position with the closed flow path if at least the line leading to the control valve (41 to 44) ( 36 to 39) is depressurized or at least falls below a preset value.

33. Cylinder (06) according to claim 1 or 3, characterized in that a second supply line (66) is provided which can be connected to a second pressure source (67).

34. Cylinder (06) according to claim 33, characterized in that the second supply line (66) has a part coming from the second pressure source (67) and a part on the cylinder side, both parts being connectable to one another via a second connecting element (68).

35. Cylinder (06) according to any one of claims 33 or 34, characterized in that the part of the second feed line (66) going out from the second pressure source (67) has a check valve (69).

36. cylinder (06) according to claim 35, characterized in that the check valve (69) is a 3/2-way valve (69).

37. Cylinder (06) according to one of claims 35 or 36, characterized in that the check valve (69) can be brought into a switching position with an open flow path with a mechanical actuating means (71) against the force of a spring (72).

38. cylinder (06) according to claim 37, characterized in that the actuating means (71) is a push button.

39. Cylinder (06) according to one of claims 33 to 38, characterized in that the cylinder-side part of the second feed line (66) is connected to at least one node (34), from which the lines (36 to 39) branch off and to which the first feed line (31) is connected.

40. Cylinder (06) according to claim 34, characterized in that in each case a check valve (73; 74) is provided in the cylinder-side part of both the first supply line (31) and the second supply line (66).

41. Cylinder (06) according to claim 40, characterized in that the check valve (73; 74) is a check valve (73; 74) which controls the flow of the pressure medium from the pressure source (32; 67) with which the cylinder-side part the first feed line (31) or the second feed line (66) is connected, only in the direction of the lines (36 to 39) granted.

42. Cylinder (06) of a printing press, the cylinder (06) having at least one actuating means (23) to which a pressure medium can be applied and at least one first feed line (31) for supplying the pressure medium, a part arranged outside the cylinder (06) the first feed line (31) arranged in a stationary manner while a cylinder-side part of the first feed line (31) is firmly connected to the rotatable cylinder (06), a first connection element (33) between the part arranged outside the cylinder (06) and the cylinder-side as a permanent connection between the two parts Part of the first feed line (31) is provided, characterized in that a second feed line (66) is provided, which can be connected to a second pressure source (67), the second feed line (66) being one that goes out from the second pressure source (67) Part and a cylinder-side part connected in a node (34) to the first supply line (31), in the event of a malfunction or failure of the pressure medium in the first supply line (31) as a replacement for the supply of the pressure medium via the first connecting element ( 33) both parts of the second feed line (66) can be connected to one another via a second connecting element (68).

43. Cylinder (06) according to claim 42, characterized in that in the cylinder (06) a plurality of actuating means (23) can be provided with a pressure medium, lines (36 to 39) branching off from the first supply line (31) for distributing the pressure medium to the adjusting means (23) are provided.

44. Cylinder (06) according to claim 43, characterized in that a control valve (41 to 44) is provided in each case in the lines (36 to 39) to at least two adjusting means (23).

45. Cylinder (06) according to claim 43, characterized in that the lines (36 to 39) branch off from the node (34) to the adjusting means (23).

46. Cylinder (06) according to claim 1, 3 or 42, characterized in that the cylinder (06) is designed as a forme cylinder or as a blanket cylinder.

47. Cylinder (06) according to claim 1, 3 or 42, characterized in that at least one elevator (01) and a holding means (21) holding the elevator (01) on the cylinder (06) are provided on the cylinder (06) ,

48. Cylinder (06) according to claim 47, characterized in that a plurality of lifts (01) are arranged on the cylinder (06), at least one holding means (21) holding the lifts (01) on the cylinder (06) being provided.

49. Cylinder (06) according to claim 48, characterized in that several elevators (01) are arranged side by side in the axial direction of the cylinder (06).

50. cylinder (06) according to claim 49, characterized in that six elevators (01) are arranged side by side in the axial direction of the cylinder (06).

51. Cylinder (06) according to claim 48, characterized in that two elevators (01) are arranged one behind the other in the circumferential direction of the cylinder (06).

52. Cylinder (06) according to claim 47, characterized in that the holding means (21) assumes an operating position releasing at least one elevator (01) for its distance from the cylinder (06) when the actuating means (23) is acted upon by the pressure medium.

53. Cylinder (06) according to claim 48, characterized in that each elevator (01) is assigned a holding means (21) actuated by the adjusting means (23).

54. Cylinder (06) according to claim 53, characterized in that the holding means (21) can be actuated individually or in groups.

55. cylinder (06) according to claim 53, characterized in that each holding means (21) at least one adjusting means (23) is assigned.