Cylinder having clamping shaft and shaft arresting device

Information

  • Patent Grant
  • 6694878
  • Patent Number
    6,694,878
  • Date Filed
    Monday, November 18, 2002
    21 years ago
  • Date Issued
    Tuesday, February 24, 2004
    20 years ago
Abstract
A device that is useable to clamp a rotatable shaft or spindle and which is provided with cams or pressure pieces, to retain or to tension packings on a cylinder, is provided. The shaft or spindle can be both rotated about an axis of rotation, as well as clamped against rotation by the device. The device can be pivoted with respect to the shaft or spindle about a pivot axis which is essentially perpendicular to the axis of rotation of the shaft or spindle. The pivotable device can be provided as a pawl or lever that interacts with a pair of stops to hold it in a shaft or spindle locking position.
Description




FIELD OF THE INVENTION




The present invention is directed to a device for clamping and/or tensioning. More specifically, the present invention is specifically directed to a device for clamping or tensioning a plate or a packing on a cylinder.




BACKGROUND OF THE INVENTION




DE 195 09 561 C2 discloses a device for clamping plates, which has a swiveling spindle. The plates are frictionally held between a channel wall and pressure cams that are arranged radially in the spindle. Clamping is performed by turning the swiveling spindle until the cams act almost normally on the plates resting against the channel wall. In a similar manner, DE 40 05 093 C1 shows an eccentrically seated spindle, which frictionally clamps the plates between its surface shell and the channel wall when the spindle is turned.




A device for actuating a tensioning device is known from DE 34 01 760 A1, in which the tensioning spindle is structured as a profiled shaft. Tensioning takes place by turning the head of the tensioning spindle, which projects past the end face of the cylinder, and which displaces a tensioning strip in the circumferential direction. The spindle is non-positively secured against an automatic return movement by pressing the surface of a pin of the spindle into a bracket.




U.S. Pat. No. 4,495,865 shows a device for accomplishing the positive arresting of a device for tensioning packings on cylinders by turning a spindle. A crown gear is assigned to one of the ends of the spindle. Arresting is performed by the use of a blade, which is placed nearly tangentially against the crown gear. The shape of the teeth and the arrangement of the blade have been selected in such a way that turning of the spindle in the tensioning direction is possible, but a return movement is prevented. To release the device, the blade is pivoted away from the crown gear by actuating a lever that is assigned to the blade.




DE 44 42 300 A1 also shows a device for tensioning packings, that has an arresting device which, in the operating state, permits turning of the tensioning device in the tensioning direction, but blocks a return movement. Tensioning and arresting, or releasing, here takes place by the use of a single actuating device that is arranged in an extension of the spindle and which is turned for tensioning the packing in the circumferential direction of the spindle, and for arresting/releasing the spindle is moved axially in respect to the spindle axis. No limitation of the travel or force in the tensioning direction is provided.




DE 29 10 880 C2 also discloses a device for tensioning a packing, wherein the tensioning of a packing and the arresting of a shaft takes place by the use of a single device. Tensioning and arresting by the utilization of the friction of a threaded bolt arranged in a screw thread takes place by the same movement.




A device for clamping/tensioning a packing and for arresting the device is known from U.S. Pat. No. 4,417,517. Tensioning is performed by the use of swiveling a shaft, and arresting is accomplished by the use of a lever which must be specifically actuated.




SUMMARY OF THE INVENTION




The object of the present invention is directed to providing a device for clamping and/or tensioning.




In accordance with the present invention, this object is attained by providing a packing clamping or tensioning device in which packing clamping and tensioning, as well as the arresting of a shaft with respect to its axis of rotation, can be performed by a single device. For clamping and tensioning, this single device can be rotated about an axis that is parallel with the rotational axis of the shaft. For arresting movement of the shaft, the device is pivotable about a pivot axis that is perpendicular to the axis of rotation of the shaft.




An advantage to be achieved by the present invention resides, in particular, in that one single device permits both clamping, or tensioning of packings and, at the same time, the positive arresting in the desired position of the clamping device. An actuation of separately provided devices for arresting, or releasing, and for clamping, or tensioning, is not required. The device for clamping or tensioning, in accordance with the present invention, is simple to operate and can be accurately and dependably arrested in respect to available locking mechanisms.




A further advantage of the device of the present invention is that arresting is provided by the provision of a positive connection, wherein the effective surfaces take place nearly perpendicularly to the circumferential surface and therefore normal in respect to the possible movement or force direction of the shaft or spindle. Release of the subject device, in response to centrifugal forces, or to fluctuations or micro-movements, as is possible with the use of non-positive connections or with the use of resilient lever mechanisms, cannot occur.




Arresting can be performed in a simple self-locking manner. In the operating state of the cylinder, i.e. in the state of rest of the device for clamping and/or tensioning, the device is maintained positively arrested.




The arrangement of the present invention, with the arresting device acting positively in both directions of rotation of the spindle, is particularly advantageous. This permits an exact, reproducible positioning of the shaft or spindle, and thus of the surfaces working together with the packing, and further permits a defined position, independently of pretensioning of the device or the packing. The position of the spindle is important, in particular, for non-positive or for positive holding or tensioning with the aid of profiled shafts, cams or gripping members on shafts. A small positional change of the surface in the circumferential direction, which works together with the packing, or an initially not quite exactly set position might cause the “opening” of the device, in particular, if the operation is performed at dead center (unstable equilibrium). By arresting the spindle in both adjustment directions, the unintentional displacement of the spindle by forces or movements which are oriented out of the channel, as well as forces or movements directed into the channel, is prevented. The former are caused, for example, by the pulling force of the packing or by a centrifugal force. The latter are caused for example, by changes in length or by an evening-out of the packing over the circumference of the cylinder. If there is only a frictional connection between the packing and the surface of the spindle acting together with the packing, the packing can move further into the channel without the spindle being displaced in the circumferential direction and therefore turned out of its desired position.











BRIEF DESCRIPTION OF THE DRAWINGS




A preferred embodiment of the present invention is represented in the drawings and will be described in greater detail in what follows.




Shown are in:





FIG. 1

, a cross-sectional view through a channel of a cylinder which is provided with a clamping and/or a tensioning device,





FIG. 2

, an isometric view of the device for clamping and/or tensioning in accordance with the present invention,





FIG. 3

, a cross-sectional view through the device for clamping and/or tensioning in an arrested position A, and in





FIG. 4

, a cross-sectional view through the device for clamping and/or tensioning, in accordance with the present invention, in a released position B.











DESCRIPTION OF THE PREFERRED EMBODIMENT




A device for the non-positive or for the positive holding and/or tensioning of at least one packing


03


, for example in the form of a printing plate


03


, on a formed cylinder


01


, or a rubber blanket


03


on a transfer cylinder


01


, is arranged in an axially extending channel


02


of a cylinder


01


, for example a formed or a transfer cylinder


01


of a printing press.




The actuation of the device for tensioning or holding the packing


03


is performed through a shaft


04


, for example a spindle


04


which is provided with thrust pads, and which shaft or spindle


04


is rotatably seated in the channel


02


of the cylinder


01


.




The channel


02


, which extends parallel with the cylinder axis of rotation, has a slit


06


on the surface shell of the cylinder


01


, and a bore


07


located in the interior of the cylinder


01


and connected with the slit


06


. A width b


06


, for example b


06


=1 mm, of the slit


06


has slightly more than twice the thickness of the packing


03


. The shaft


04


, which, in the depicted configuration is a rotatable spindle


04


, is arranged in the bore


07


.




In order to accomplish the clamping of the packing


03


, both ends of the packing


03


are fed into the slit


06


and are clamped by rotating the spindle


04


with the aid of the clamping and/or tensioning device of the present invention. The spindle


04


is provided with thrust pads


08


for use in clamping or tensioning the ends of the packing


03


. A hook strip


08


, for example, which is arranged in a recess


09


, formed, for example as a groove


09


, and extending in the axial direction on the circumference of the spindle


04


, is used as the thrust pad


08


for the non-positive holding of the packing


03


. The hook strip


08


is pressed in a radial direction, with respect to the spindle


04


, out of the spindle


04


and against the packing


03


by resilient elements


11


, for example by compression springs


11


. The compression springs


11


are located in blind bores


12


, which are spaced apart from each other in the axial direction of the spindle


04


and are arranged in the bottom surface of the groove


09


. The head of the hook strip


06


, which cooperates with the packing


03


, can be provided with a continuous hook


13


, or with several individual hooks


13


that are spaced apart from each other in the longitudinal or axial direction of the spindle


04


, this hook


13


or these spaced hooks


13


, in the clamping and tensioning device depicted in

FIG. 1

, act together with the edge


14


of the packing


03


, or with corresponding recesses


16


in the packing


03


, for releasing the packing


03


.




The non-positive connection between a wall


17


, that is formed in the cylinder as part of the slit


06


, and leading and trailing ends of the packing


03


, together with the hook or hooks


13


arranged on the head of the hook strip


08


, is greatest when the force exerted by the compressing springs


11


, through the hook strip


08


, acts perpendicularly on the ends of the packing


03


.




The shaft


04


can also be a profiled shaft, such as, for example, an eccentric shaft, a shaft or spindle provided with cams, or an eccentrically seated shaft or spindle. The shaft


04


, when it is turned, works either directly with the packing


03


in a frictionally connected or non-positive way by use of its active surface, or it actuates a movable mechanism, which mechanism, in turn cooperates with the packing


03


. The surface of the shaft


04


, which works either directly with the packing


03


in a frictionally connected or non-positive way with the packing


03


, or which works with the intermediate movable device, is identified as the active surface of the shaft or spindle


04


.




The device for clamping and/or tensioning, in accordance with the present invention, includes a recess


18


in a surface shell


19


of the shaft


04


, in which a pivotable lever


21


is arranged, all as seen in FIG.


2


. The pivot axis


22


of the lever


21


extends nearly perpendicularly with respect to the rotational axis


23


of the shaft or spindle


04


. For tensioning or clamping the packing


03


, the shaft


04


is turned around its rotational axis


23


, in an advantageous manner, with the aid of the lever


21


. For arresting or releasing the shaft


04


, the lever


21


is pivoted around its pivot axis


22


as seen in

FIGS. 3 and 4

. The shape and position of the lever


21


is structured in such a way that in a first position, which is the arrested position A shown in

FIG. 3

, the lever


21


acts in a positive manner together with surfaces


24


and


26


of a pair of detents, for example the lateral surfaces


24


and


26


of a groove


27


that is fixed in the cylinder. In this arrested position A, the shaft


04


is fixed in both rotational directions in relation to its rotational axis


23


. In a second position, which is the released position B shown in

FIG. 4

, the lever


21


lies free with respect to the cylinder


01


and therefore permits turning of the shaft


04


.




In the depicted preferred embodiment, the recess


18


at one end of the shaft


04


is configured as a groove


18


, which extends continuously through the end of the shaft


04


perpendicularly in relation to the rotational axis


23


of the shaft


04


. The groove


18


can also be arranged on a bearing journal assigned to the shaft


04


, or on another extension assigned to the shaft


04


. In the preferred embodiment, the groove


18


is located at the end face of one end of the shaft


04


and divides that end face into two shaft legs


28


and


29


with opposite leg surfaces


31


and


32


pointing inwardly toward the rotational axis


23


of the shaft


04


. Groove


18


also defines a groove inner wall surface


34


that is located between the two legs


28


and


29


and pointing in the direction of the outer end


33


of the shaft


04


. Each of the legs


28


and


29


has an outward oriented surface


36


and


37


, which surfaces


36


and


37


are, in the present configuration, a part of the shaft surface shell


19


.




A bolt


38


, which extends in a direction corresponding to the pivot axis


22


and to which the lever


21


is swivelably attached, is arranged in the groove


18


. The bolt


38


extends between the surfaces


31


and


32


of the legs


28


and


29


in the interior of the groove


18


and is preferably perpendicular with respect to the rotational axis


23


of the shaft


04


. Bolt


38


allows pivoting of the lever


21


in a plane located parallel with the rotational axis


23


of the shaft


04


and perpendicular in respect to the pivot axis


22


of lever


21


. The bolt


38


can be a shaft


38


passing through the lever


21


and can be of one piece construction or can be divided, and arranged extending on both sides of the lever


21


. It can be non-positively or positively connected in the legs


28


or


29


or in the lever


21


, wherein the rotatable seating, for example embodied as bushings or bearings, is then arranged correspondingly, in a first case, the lever


21


or, in a second case, in the legs


28


and


29


.




In the depicted preferred embodiment, the lever


21


is embodied as a two-armed lever


21


, with respect to the pivot axis


22


. The bolt


38


, acting as a fulcrum, defines a lever arm


39


to be actuated and a lever arm


41


, which acts as a ratchet


41


. The lever


21


has two lateral surfaces


42


and


43


, which lie nearly parallel to opposite surfaces


31


and


32


of the legs


28


and


29


. Lever


21


also has an inner end surface


44


which is facing the groove inner wall surface


34


and a lever outer end surface


46


located diametrically opposite the lever inner end surface


44


. In the preferred embodiment, the lever


21


is approximately cuboid and it has top and bottom ends


47


and


48


on opposite ends.




The lever


21


can also be embodied as a one-armed lever. In this case, the ratchet


41


is for example a protrusion


41


, which projects laterally out of the outer surface


46


on the lever arm


39


and which, in the arrested position A, enters into the groove


27


fixed on the cylinder.




The lever top end


47


, assigned to the lever arm


39


to be actuated, can have an opening


49


, for example a bore


49


, into which an actuating device


51


, for example an actuating arbor


51


, is positively inserted for use in extending the lever arm


39


, as seen in FIG.


3


. The positive connection can also be configured in the opposite manner by the use of an opening


49


in the actuating arbor


51


and by a correspondingly shaded protrusion on the lever arm


39


portion of lever


21


.




The dimensions and the position of the lever arm


41


acting as a ratchet


41


are selected in such a way that in the released position B the lever bottom end face


48


terminates flush with the surface shell


19


, for example, or at least does not project past it, but in the arrested position A this bottom end face


48


projects past the surface shell


19


and acts positively together with the lateral surfaces


24


and


26


of the groove


27


. In the depicted preferred embodiment, the ratchet


41


is a part of the cuboid two-armed armed lever


21


and has a length l


41


and a width b


41


. The bolt


38


, arranged perpendicular in respect to the rotational axis


23


of the shaft


04


, passes perpendicularly through the surfaces


42


and


43


of the lever


21


. The length l


41


of the ratchet


41


has been selected to be approximately equal to the radius r


04


of the shaft


04


, so that the lever bottom end face


48


extends flush nearly in an imagined extension of the surface shell


19


. When swiveling the lever


21


over an angle β into the arrested position A, the edge defined by the surfaces


48


and


46


moves out of the imagined course of the surface shell


19


. It is possible, in an advantageous manner, for the surface


46


of the cuboid lever


21


to be beveled by the angle β in the area of the lever arm


39


in such a way that, in the arrested position A, the lever


21


does not project out of the end face of the cylinder


01


. In the same way, the surface


44


of the cuboid lever


21


can be beveled by the angle β in the area of the lever arm


41


in such a way that, in the arrested position A, the lever


21


does not project into the shaft


04


.




The position and shape of the ratchet


41


are matched to the shape and distance of the surfaces


24


and


26


which are respectively acting together with the ratchet


41


as a detent, as well as to the positioning of the shaft


04


in the cylinder


01


.




In the depicted preferred embodiment, the end of the shaft


04


, which projects from the channel


02


and which is provided with the groove


18


at its end, is positively seated, rotatable around the rotational axis


23


, in a bore


52


of the end wall


53


of the cylinder


01


. However, for the purpose of operating the lever


21


that is arranged in the groove


18


, the shaft


04


is not completely surrounded by the front wall


53


of the cylinder


01


. The opening angle a of a channel in the end wall


53


of the cylinder


01


depends on the required travel arc of the lever


21


for actuating the shaft


04


and, for example, can be 70°.




The groove


27


, acting together with the ratchet


41


, is arranged in the bore


52


parallel with the rotational axis


23


and has a base


54


and the two previously discussed lateral surfaces


24


and


26


, which act together with the surfaces


42


and


43


of the ratchet


41


. It is also possible for several grooves


27


to be arranged in the bore


52


in the circumferential direction.




The ratchet


41


can also act together with different surfaces


24


and


26


arranged on the cylinder


01


, which in the arrested position A positively absorb the force transmitted via the surfaces


42


and


43


of the lever


21


and which are acting tangentially in relation to the surface shell


19


of the shaft


04


. This can be, for example, a segment of a hollow wheel with teeth on the inside, and having respective tooth flanks as the surfaces


24


and


26


, and with a ratchet


41


embodied as a trapezoidal or triangular prism, working together with them.




The inclinations of the surfaces


24


and


26


working together with the lever


21


as detents, for example embodied as lateral surfaces


24


and


26


of a groove


27


, are arranged, in an advantageous manner, nearly parallel with the surfaces


42


and


43


of the lever


21


when the shaft


04


and the lever


21


are in the arrested position A. In an advantageous manner, the surfaces


42


,


43


,


24


and


26


approximately extend on a plane parallel with the rotational axis


23


, and thus in the pivotal plane of the lever


21


. It is possible to achieve a positive connection, fixed against a possible rotation of the shaft


04


, together with as even as possible a surface pressure, for example, by the arrangement of the surfaces


42


,


43


,


24


and


26


in a plane extending nearly parallel with the rotational axis


23


and perpendicularly with respect to the tangent of the surface shell


19


of the shaft


04


. In order to avoid play in case of a non-positive connection, it is possible to select the width b


41


of the ratchet


41


to be nearly equal to the width b


27


of the groove


27


, or to be nearly equal to the clear distance between the surfaces


24


and


26


respectively, which are acting as detents.




The shape of the end of the ratchet


41


acting together with the cylinder groove


27


with ratchet lateral faces


42


and


43


approaching each other in a slightly wedge-shaped manner in the direction toward the groove


27


, is advantageous. In this arrangement, the width b


27


of the groove


27


, or the clear distance between the surfaces


24


and


26


has been selected to be greater than the narrow side of the lever


21


facing the groove


27


, and less than the wider side of the wedge-shaped end of the ratchet


41


. In the arrested position A, the ratchet


41


is located as deeply as possible in the groove


27


and constitutes a positive, play-free connection with respect to the possible swivel direction of the shaft


04


.




In a preferred embodiment, the lever


21


is in the arrested position A when it is not in operation and it prevents the unintentional rotation of the shaft


04


. For this purpose, an element


56


with a resilient action essentially parallel with the rotational axis


23


is arranged in the groove inner wall surface


34


of the shaft


04


and cooperates directly or indirectly with the lever inner end surface


44


in the area of the lever arm


39


. In the depicted configuration, the surface


44


has a blind bore


57


, in which a spring


56


and a ball


58


are arranged. The spring


56


is supported on the bottom of the blind bore


57


and presses the ball


58


, which is arranged in the mouth of the blind bore


57


, against the surface


44


of the lever arm


39


.




In all configurations, the recess


18


, an adjustable device


21


, configured as a lever


21


, and the two surfaces


24


and


26


, each acting together with the lever


21


as detents, mutually affect each other in their detailed shaping and arrangement. The arrangement of a lever


21


, which is pivotable in a plane that extends nearly parallel with the rotational axis


23


of the shaft


04


and that has a ratchet


41


which, by use of its lateral surfaces


42


and


43


cooperates with the surfaces


24


and


26


each acting together with the other as detents, is common to all possible configurations. In the arrested position A of the lever


21


, the shaft


04


is fixed in both directions in respect to its rotational axis


23


. In a different configuration, the surfaces


24


,


26


,


42


and


43


can also be embodied as contact lines or as contact points.




It is also possible, for example via a gear of toothed wheels, to arrange the rotational movement for clamping/tensioning not directly around the rotational axis


23


of the shaft


04


, but around an axis parallel with this rotational axis.




The mode of functioning of the device in accordance with the present invention, for actuating a clamping and/or tensioning device, is as follows:




For changing the packing


03


on the cylinder


01


, the lever


21


, which is in the arrested position A shown in

FIG. 3

, is pivoted into the released position B shown in

FIG. 4

by pivoting the lever arm


39


against the force of the resilient element


56


. In the process, the ratchet


41


moves out of the groove


27


and is in the released position B. The shaft


04


, for example the rotatable spindle


04


, can now be rotated, by movement of the lever arm


39


, around its rotational axis


23


with or without use of the actuating arbor


51


. In the preferred embodiment, the shaft


04


is initially rotated into the direction in which the hooks


13


of the hook strip


08


, arranged on the spindle


04


, extend below the edge


14


, or the recesses


14


of the packing


03


. Thereafter, the spindle


04


is rotated in the opposite direction, whereupon the hooks


13


push the packing


03


out of the channel


02


.




For clamping, or tensioning a newly installed packing


03


, the shaft


04


, for example the spindle


04


, is initially placed in a position in which the hooks


13


are not in the channel


02


that receives the end of the packing


03


. In the depicted configuration, the spindle


04


is arranged in this position in such a way that the hooks


13


point radially out toward the surface of the cylinder


01


, and not into the slit


06


. Both ends of the packing


03


are introduced through the slit


06


into the channel


02


so that they come to rest between a wall


17


or


53


, fixed on the cylinder, of the slit


06


and the spindle


04


. Thereafter, the spindle


04


is rotated around its rotational axis


23


by use of the lever arm


39


to the extent that the ratchet


41


reaches the position defined by the groove


27


in the cylinder


01


. In this position, the hooks


13


act together with the packing


03


, and the force of the compression springs


11


acts nearly normally on the packing


03


. With the release of the lever arm


39


, the ratchet


41


is swiveled, via the resilient element


56


, into the groove


27


and is maintained there in a self-locking manner. The shaft


04


is now fixed in the predetermined position against rotating in either possible direction.




While a preferred embodiment of a device for clamping or tensioning a packing on a cylinder in accordance with the present invention has been set forth fully and completely hereinabove, it will be apparent to one of skill in the art that a number of changes in, for example the overall size of the cylinder, the type of printing press the cylinder is used with, and the like could be made without departing from the true spirit and scope of the present invention which is accordingly to be limited only by the appended claims.



Claims
  • 1. A cylinder in combination with a device for clamping and tensioning a packing on the cylinder comprising:a clamping shaft supported in the cylinder and rotatable about a clamping shaft rotation axis; and a clamping shaft arresting device useable to rotate said clamping shaft about said clamping shaft rotation axis and to arrest said clamping shaft against rotation about said clamping shaft rotation axis, said clamping shaft arresting device being rotatable about an arresting device rotation axis which extends in the same direction as said clamping shaft rotation axis to rotate said clamping shaft, and being pivotable about an arresting device pivot axis to arrest said clamping shaft, said pivot axis being perpendicular to said clamping shaft rotation axis.
  • 2. The combination of claim 1 wherein said arresting device rotation axis and said clamping shaft rotation axis are the same.
  • 3. The combination of claim 1 wherein said clamping shaft, in an arrested position, is fixed against movement about said clamping shaft rotation axis.
  • 4. The combination of claim 1 wherein said clamping shaft arresting device is a pivotable lever, said pivotable lever being pivotable in a plane extending parallel with said clamping shaft rotation axis, and further including spaced detent surfaces, said pivotable lever engaging said detent surfaces in a clamping shaft arresting position.
  • 5. The combination of claim 4 further including a recess in said clamping shaft, said pivotable lever being arranged in said clamping shaft recess.
  • 6. The combination of claim 4 further including a ratchet with two spaced ratchet surfaces on said pivotable lever, said two spaced ratchet surfaces extending perpendicular to a surface shell of said clamping shaft, said two spaced ratchet surfaces cooperating with said spaced detent surfaces when said pivotable lever is in said clamping shaft arresting position.
  • 7. The combination of claim 6 wherein said detent surfaces and said ratchet surfaces are generally parallel in said clamping shaft arresting position of said pivotable lever.
  • 8. The combination of claim 5 further including a pivot shaft in said recess, said pivotable lever being supported on said pivot shaft.
  • 9. The combination of claim 5 wherein said recess is a groove on an end face of said clamping shaft.
  • 10. The combination of claim 5 wherein said spaced detent surfaces are surfaces of said recess.
  • 11. The combination of claim 5 wherein said clamping shaft is supported in a bore in the cylinder, said detent surfaces being in said bore and at an end wall of the cylinder.
  • 12. The combination of claim 1 wherein said clamping shaft arresting device is a two armed lever having a first lever arm and a second lever arm.
  • 13. The combination of claim 12 wherein said two armed lever is a cuboid.
  • 14. The combination of claim 12 wherein said second lever arm is a ratchet.
  • 15. The combination of claim 1 wherein said clamping shaft arresting device is self locking in a clamping shaft arrested position.
  • 16. The combination of claim 15 further including a resilient element cooperating with said clamping shaft arresting device in said clamping shaft arresting position.
  • 17. The combination of claim 16 further including a blind bore in the clamping shaft, said resilient element being positioned in said blind bore.
  • 18. The combination of claim 1 wherein said clamping shaft is arranged in a printing press.
  • 19. The combination of claim 1 wherein the packing is a printing plate and the cylinder is a formed cylinder.
  • 20. The combination of claim 1 wherein the packing is a rubber blanket and the cylinder is a transfer cylinder.
  • 21. The combination of claim 1 further including a channel in said clamping shaft, said channel extending parallel to said clamping shaft rotation axis, and a slit extending axially on the cylinder, said slit adapted to receive ends of the packing, and further including a bore in the cylinder, said bore receiving said clamping shaft and being connected to said slit.
  • 22. The combination of claim 21 further including at least one thrust element extending radially in said clamping shaft and being resiliently supported.
  • 23. The combination of claim 22 further including a wall on said slit, said packing ends being engaged by said at least one thrust element and being clamped between said slit wall and said at least one thrust element in a clamping position of said clamping shaft.
Priority Claims (1)
Number Date Country Kind
100 24 331 May 2000 DE
PCT Information
Filing Document Filing Date Country Kind
PCT/DE01/01832 WO 00
Publishing Document Publishing Date Country Kind
WO01/87612 11/22/2001 WO A
US Referenced Citations (8)
Number Name Date Kind
3727551 Kostas et al. Apr 1973 A
4417514 Hoshino Nov 1983 A
4495865 Kamoda Jan 1985 A
5062363 Reichel Nov 1991 A
5131327 Nagasono et al. Jul 1992 A
5383401 Brotzman Jan 1995 A
5653170 Puschnerat et al. Aug 1997 A
6101942 Robert Aug 2000 A
Foreign Referenced Citations (5)
Number Date Country
29 10 880 Sep 1980 DE
34 01 760 Aug 1985 DE
40 05 093 Jun 1991 DE
44 42 300 Aug 1995 DE
195 09 561 Sep 1996 DE