EP0596244B1 - Unité d'impression avec fixation de paliers détachable - Google Patents

Unité d'impression avec fixation de paliers détachable Download PDF

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Publication number
EP0596244B1
EP0596244B1 EP93115538A EP93115538A EP0596244B1 EP 0596244 B1 EP0596244 B1 EP 0596244B1 EP 93115538 A EP93115538 A EP 93115538A EP 93115538 A EP93115538 A EP 93115538A EP 0596244 B1 EP0596244 B1 EP 0596244B1
Authority
EP
European Patent Office
Prior art keywords
bearing
door
printing unit
clamp jaw
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93115538A
Other languages
German (de)
English (en)
Other versions
EP0596244A1 (fr
Inventor
Glenn A. Guaraldi
James B. Vrotacoe
James W. Geary
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0596244A1 publication Critical patent/EP0596244A1/fr
Application granted granted Critical
Publication of EP0596244B1 publication Critical patent/EP0596244B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the present invention relates to a printing unit of an offset printing machine according to the preamble of claim 1.
  • An offset printing machine is known from EP 0 225 509 A2, in which the offset printing forms and the blanket cylinder coverings are designed as sleeves. These sleeves are slid onto the cylinders and attached to them in an interchangeable manner.
  • the respective cylinder is mounted in a floating manner at one end in the side wall and is guided in a pivotable bearing at its other end.
  • the pivotable bearing is attached to a pivot bearing on the side wall and can be pivoted away from the side wall in a direction facing away from the cylinder. After the pivotable bearing has been pivoted away, an opening extends through the side wall, the cross section of which is larger than the cross section of the rubber blanket sleeve.
  • the sleeve can be removed from the cylinder through the opening and replaced by another. After changing the sleeve, the bearing is swung back into the opening and pushed onto the pin end of the cylinder.
  • a bearing for a printing couple cylinder has become known from EP 0 492 102 A1.
  • a bearing is provided for a printing couple cylinder of a web-fed rotary printing press, which carries an exchangeable jacket which can be pushed laterally through an opening in a machine side wall. With this type of storage, a jacket change is possible without restricting the space on the operating side of the printing press.
  • a lever is mounted on the side wall of the machine parallel to it and can be locked in an end position, which lever receives a pin of the cylinder in an openable housing.
  • the object of the present invention is to enable a quick, unproblematic changing of the sleeve of the blanket cylinder.
  • this object is achieved by the characterizing features of claim 1. Since after only a slight relative movement of the second clamping jaw, the gate can be swung out, the replacement of the rubber blanket sleeve can be carried out very quickly.
  • the storage can be designed such that a heating-related elongation of the blanket cylinder does not cause the same to bend.
  • the door is attached to the side wall and can be rotated about a horizontal storage axis in the closed position.
  • a blanket sleeve is to be telescopically applied to the cylinder
  • the cylinder is first moved into a parking position in which it is separated from the adjacent cylinder in the printing unit is spaced.
  • the gate and the bearing which is clamped to the gate by a clamping device, both move with the cylinder when it is moved into its parking position.
  • the bearing is then released from the gate by the clamp and the gate is moved away from the bearing and cylinder to its open position.
  • the blanket sleeve can be telescoped through the opening in the side wall over the cylinder and the bearing.
  • the printing unit 10 is, for example, a lithographic offset printing unit for printing on both sides of a web 12.
  • the printing unit 10 comprises an upper plate cylinder 14 and an upper blanket cylinder 16 above the web 12 and one lower plate cylinder 18 and a lower blanket cylinder 20 below the web 12.
  • the respective ends of the cylinders 14-20 are rotatably supported in a frame with a pair of side walls 22, one of which is shown in FIG. 1.
  • a motor 24 drives a gear train (not shown) which is connected to and rotates the cylinders 14-20, as indicated by the arrow shown in FIG. 1.
  • the engine and gear train can be of conventional design.
  • the upper plate cylinder 14 carries a printing plate 30 on which an image to be printed is defined.
  • the pressure plate 30 consists of a thin metal plate and is applied to the upper plate cylinder 14 by winding.
  • the pressure plate 30 is secured thereon by a tensioning mechanism 32 in the upper plate cylinder 14.
  • the upper blanket cylinder 16 carries a blanket 34.
  • the blanket 34 is designed as a sleeve which is attached to the upper blanket cylinder 16 by telescopic pulling.
  • Another sleeve-shaped blanket 36 is attached in the same way to the lower blanket cylinder 20 and a further printing plate 38 is secured on the lower plate cylinder 18 by a tensioning mechanism 40.
  • ink is supplied to both printing plates 30 and 38, and the respective printed image thereon is inked.
  • the colored printing image of the upper printing plate 30 is transferred to the upper rubber blanket 34 in the printing nip 42 between the upper plate cylinder 14 and the upper blanket cylinder 16.
  • the inked printed image is then transferred in the printing nip 44 between the upper and lower blanket cylinders 16 and 20 from the blanket 34 to the top of the web 12.
  • the colored printing image on the lower printing plate 38 is in the printing nip 46 transferred between the lower plate cylinder 18 and the lower blanket cylinder 20 to the lower blanket 36.
  • the inked printed image in the printing nip 44 is then transferred from the lower blanket 36 to the underside of the web.
  • the printing unit 10 thus prints simultaneously on both sides of the web 12.
  • a parking mechanism 48 moves the upper plate cylinder 14, the lower plate cylinder 18 and the lower blanket cylinder 20 to the parking position.
  • the parking mechanism 48 does not move the upper blanket cylinder 16, but when the other cylinders 14, 18 and 20 are in their parking position, all of the cylinders 14, 16, 18 and 20 in the printing nips 42, 44 and 46 are spaced apart.
  • FIG. 2 One end of the lower blanket cylinder 20 is shown in FIG. 2.
  • This end of the lower blanket cylinder 20 has a stub shaft 50.
  • the stub shaft 50 is centered on the longitudinal center axis 52 of the cylinder 20 and has a tapered end part 54.
  • a bearing 56 is arranged coaxially on the stub shaft 50.
  • the bearing 56 comprises a cylindrical bearing housing 58.
  • the diameter of the bearing housing 58 is smaller than the diameter of the lower blanket cylinder 20.
  • the bearing housing 58 contains a bearing 59 which comprises an inner race 60 and an outer race 62.
  • the inner race 60 has a tapered inner surface 64 over the tapered end portion 54 of the stub shaft 50 and is held in place on the tapered end portion 54 by a collar 66.
  • the bearing 59 also includes a plurality of spherical bearing rollers 68 which are between the inner race 60 and outer race 62 are located.
  • the bearing rollers 68 support the outer race 62 and the bearing housing 58 as they move about the cylinder axis 52 relative to the inner race 60 and the blanket cylinder 20.
  • the bearing housing 58 is sealed to prevent the ingress of contaminants that could affect the operation of the bearing 59 to block.
  • the adjacent end of the upper blanket cylinder 16 is also constructed as shown in FIG. 2 and carries a bearing which is equivalent to the bearing 56.
  • the lower blanket cylinder 20 and the bearing housing 58 are in a coaxial relationship.
  • the lower blanket cylinder 20 tends to bend easily under the influence of the forces exerted on it by the printing process in the printing unit 10. Due to the spherical contour of the bearing rollers 68, the stub shaft 50 and the inner race 60 can tilt slightly out of the coaxial alignment with the outer race 62 and the bearing housing 58 in the event of such a bend in the lower blanket cylinder 20.
  • the printing unit 10 further comprises a pair of mounting gates. These assembly gates are arranged on the frame wall 22 next to the ends of the blanket cylinders 16 and 20, where the bearings 56 are located.
  • An upper assembly gate 70 is assigned to the upper blanket cylinder 16.
  • a lower assembly gate 72 is assigned to the lower blanket cylinder 20.
  • the frame wall 22 has an inner edge surface 74 that extends around the ends of the upper and lower blanket cylinders 16 and 20.
  • the inner edge surface 74 of the side wall 22 defines an opening that extends over the ends of the upper and lower blanket cylinders 16 and 20.
  • the lower assembly gate 72 consists of a bracket 80 and a gate 82.
  • the bracket 80 is attached to the frame wall 22 in such a way that it rotates about a horizontal storage axis 84.
  • the holder 80 has an upper and a lower arm 86 and 88, which extend beyond the edge surface 74 on the side wall 22 and partly over the opening 76.
  • the gate 82 has upper and lower arms 90 and 92 which extend over the upper and lower arms 86 and 88 of the bracket 80, respectively.
  • the upper and lower arms 90 and 92 of the gate 82 are arranged on the bracket 80 in such a way that they are rotatable about a substantially vertical axis 95.
  • the gate 82 is mounted so that it is rotatable between a closed position shown in Figs. 3-5 and an open position shown in Fig. 6.
  • the lower mounting gate 72 also includes a pair of jaws 100 and 102.
  • the first jaw 100 has a semicircular clamping surface 104 and is disposed on the gate 82.
  • the semicircular clamping surface 104 fits snugly on the outer surface of the cylindrical bearing housing 58, as shown in FIG. 7.
  • the second clamping jaw 102 has a semicircular clamping surface 106 and is arranged on the gate 82 and can be moved relative to the first clamping jaw 100.
  • the semicircular clamping surface 106 also fits exactly on the outer surface of the cylindrical bearing housing 58. As indicated by the arrow shown in FIG. 7, the second clamping jaw 102 is between one Clamping position and a release position can be moved back and forth.
  • the second jaw 102 on the gate 82 is moved between the clamping position and the release position by a hinge 105 mounted on the gate 82.
  • the hinge 105 includes a first link 110, a second link 112 and a third link 114.
  • the inner end of the first link 110 is supported between the upper and lower arms 86 and 88 of the bracket 80 and rotatable about a vertical axis 95.
  • the outer end of the first link 110 is pivotally connected to the second link 112 between the respective ends of the second link 112.
  • the second link 112 extends through the gate 82 between the upper and lower arms 90 and 92 of gate 82 through.
  • the inner end of the second link 112 is rotatably connected to the second jaw 102 on the gate 82.
  • the outer end of the second link 112 is rotatably connected to a tension anchor 122.
  • the tension anchor 122 extends from the second link 112 to the third link 114 and is rotatably connected to the latter.
  • the third link 114 is rotatably connected to a first bracket 124 on the gate 82.
  • An actuating cylinder 130 is rotatably connected to a second bracket 134 on the gate 82.
  • the actuating cylinder 130 has a piston rod 132 which is rotatably connected to the third link 114.
  • the piston rod 132 moves out of the actuating cylinder 130 from the position shown in FIG. 4 to the position shown in FIG. 5
  • the third link 114 becomes counterclockwise by the first on the Gate 82 attached bracket 124 moves.
  • the tension anchor 122 with the third link 114 is moved from the position shown in FIG. 4 to the position shown in FIG. 5.
  • the tension anchor 122 moves the second link 112 circularly counterclockwise relative to the first link 110.
  • the second jaw 102 on the gate 82 which is connected to the inner end of the second link 112, through the second link 112 from the in Fig. 4 shown clamping position moved to the release position shown in Fig. 5.
  • the piston rod 132 moves back into the actuating cylinder 130
  • the second clamping jaw 102 on the gate 82 is moved back from the release position shown in FIG. 5 to the clamping position shown in FIG. 4.
  • the bearing housing 58 tilts out of coaxial alignment with the cylinder 20 when it is not clamped between the jaws 100 and 102
  • the second jaw 102 will move toward the bearing housing 58 to move it into its Bring the clamping position back into coaxial alignment with the cylinder 20.
  • the third link 114 is moved to an end position when the joint moves the second jaw 102 back from the release position shown in FIG. 5 to the clamping position shown in FIG. 4.
  • the pivot connection between the third link 114 and the tension anchor 122 is moved clockwise over the center of the pivot connection between the third link 114 and the first bracket 124 on the gate 82.
  • the pivot connection between the third link 114 and the tension anchor 122 is thus moved a little to the right of the pivot connection between the third link 114 and the first bracket 124, as shown in FIG. 4.
  • a force that forces the second jaw 102 to move out of its clamping position becomes the third link 114 force to move clockwise.
  • the lower assembly gate 72 further comprises an actuating device for opening and closing the gate 82.
  • This actuating device consists of an actuating cylinder 140 with a piston rod 142.
  • the actuating cylinder 140 is rotatably connected to a third holder 144.
  • the third bracket 144 is attached to the frame wall 22 and rotatable about a horizontal axis 146.
  • the piston rod 142 is rotatably connected to the second bracket 134 on the gate 82.
  • the lower assembly gate 72 assumes the position shown in FIG. 4.
  • the gate 82 is closed and the second jaw 102 is in its clamping position.
  • the first and second jaws 100 and 102 come into contact with the bearing housing 58 at the end of the lower blanket cylinder 20, such as represented by the solid line in Fig. 7.
  • the semicircular surfaces 104 and 106 of the first and second jaws 100 and 102 fit on the cylindrical outer surface of the bearing housing 58 and hold the bearing 56 and the lower blanket cylinder 20 on the gate 82.
  • the force with which the second jaw 102 against the bearing housing 58 is pressed, can be adjusted by adjusting the length of the tension anchor 122.
  • the joint 105, the piston rod 132 and the actuating cylinder 130 hold the second clamping jaw 102 in their clamping position even if the pressure in the actuating cylinder 130 fails.
  • the bearing housing 58 can move axially in the direction of the clamping surfaces 104 when the blanket cylinder 20 expands due to heat during printing operation.
  • the lower assembly gate 72 supports the lower blanket cylinder 20 on the side wall 22 while it rotates in the printing process.
  • the printing cylinders 14, 18 and 20 are moved into their parking position by the parking mechanism 48.
  • the parking mechanism 48 is connected to the bracket 80 on the side wall 22 and causes the bracket 80 to rotate about the horizontal shelf axis 84.
  • the gate 82 moves with the bracket 80 about the horizontal shelf axis 84.
  • the actuating cylinder 140 and the piston rod 142 which connected to the second bracket 134 on the gate 82 move with the gate 82 about the horizontal axes 84 and 146.
  • the lower blanket cylinder 20 in its parking position moves while it is held on the gate 82.
  • the second jaw 102 is moved from the clamp position to the release position, as shown in FIG. 5.
  • a suitable counter support mechanism (not shown) then supports the lower blanket cylinder 20 at its other end in the printing unit 10.
  • the gate 82 is then moved from the closed position to the open position, as shown in FIG. 6.
  • the sleeve-shaped rubber blanket 36 on the lower rubber blanket cylinder 20 can then be moved axially through the opening 76 in the frame wall 22.
  • the lower assembly gate 72 has already been described in detail above.
  • the upper assembly gate 70 includes a bracket 180, a jaw gate 182, a hinge 184, and two actuators 186 and 188. These components are essentially the same as the corresponding parts of the lower assembly gate 72.
  • the upper assembly gate 70 differs from that lower mounting gate 72 by the bracket 180 is attached to the frame wall 22 instead of being rotatably mounted about a horizontal storage axis.
  • the bracket 180 is attached to the frame wall 22 because the upper blanket cylinder 16, which is supported by the upper mounting gate 70, is not moved by the parking mechanism 48.
  • FIG. 8 Further parts of the printing unit 10 are shown schematically in FIG. 8.
  • the bearing housing 58 and the gate 82 together have a spring-loaded ball catch 200.
  • the bearing housing 58 is rotatable about the axis 52 relative to the cylinder 20.
  • the ball catch 200 between the bearing housing 58 and the gate 82 the bearing housing 58 is prevented from moving around Rotate axis 52 when gate 82 is in a closed position.
  • This passage 210 has first, second and third sections 212, 214 and 216.
  • the first section 212 of the passage 210 extends through the gate 82.
  • the second section 214 extends through the first jaw 100 from the first section 212 to the third section 216.
  • the second section 214 of the passage 210 ends in a groove 218 which extends circumferentially in the clamping surface 104.
  • the third section 216 of the passage 210 extends through the bearing housing 58 and ends in a groove 220.
  • the groove 220 communicates with the space between the inner and outer races 60 and 62 in the bearing 59.
  • the third section 216 of the passage 210 thus connects the groove 218 on the first jaw 100 to the bearing 59.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Claims (17)

  1. Groupe d'impression d'une machine à imprimer offset, comprenant un cylindre de blanchet (16, 20) monté entre deux flasques latéraux (22) du groupe d'impression et équipé d'un blanchet en forme de manchon (34, 36) interchangeable axialement et pouvant être échangé par une fenêtre (76) du flasque latéral (22) qui peut être dégagée, le cylindre de blanchet (16, 20) étant monté flottant à l'extrémité qui est en face de la fenêtre (76), une porte (82) montée sur le flasque latéral (22) pouvant être écartée par pivotement de la fenêtre (76), et après mise en place du blanchet en forme de manchon (34, 36) sur le cylindre de blanchet (16, 20), la porte (82) pouvant être rabattue dans la fenêtre (76), la section de la fenêtre (74) découverte par le pivotement vers l'extérieur de la porte (82) étant supérieure à la section du blanchet en forme de manchon (34, 36) et un dispositif de serrage placé sur la porte (82) comprenant une première mâchoire de serrage (100) et une seconde mâchoire de serrage (102),
       caractérisé
       en ce que la seconde mâchoire de serrage (102) du dispositif de serrage de la porte (82) peut être écartée du support (56) du cylindre de blanchet (16, 20) qui est immédiatement voisin de la fenêtre (76) et la première mâchoire de serrage (100) peut être éloignée du support (56) par pivotement avec la porte (82) et le dispositif de serrage réenserre le support (56) par pivotement de la première mâchoire de serrage (100) contre le support (56) et par mise en appui de la seconde mâchoire de serrage (102) contre le support (56) par un mouvement relatif par rapport à la première mâchoire de serrage (100).
  2. Groupe d'impression selon la revendication 1,
       caractérisé
       en ce que la porte (82) occupant sa position de fermeture est montée rotative sur le flaque (22) du châssis autour d'un axe horizontal d'écartement (84).
  3. Groupe d'impression selon la revendication 2,
       caractérisé
       en ce que la première mâchoire de serrage (100) est fixée à la porte (82), la seconde mâchoire de serrage (102) est disposée sur la porte (82) en étant mobile par rapport à la première mâchoire de serrage (100), la première mâchoire de serrage (100) entrant en contact avec le support (56) lorsque la porte (82) se trouve en position de fermeture et la seconde mâchoire de serrage (102) étant mobile de manière à être mise en contact et hors de contact avec le support (56) lorsque la porte (82) se trouve à la position de fermeture.
  4. Groupe d'impression selon la revendication 3,
       caractérisé
       en ce que le support (56) comprend un palier (59) comprenant un logement (58) de palier et la première ainsi que la seconde mâchoires de serrage (100, 102) entrent en contact avec le palier (56) par le logement (58) du palier lorsqu'elles se trouvent à la position de serrage.
  5. Groupe d'impression selon la revendication 4,
       caractérisé
       en ce que le logement (58) du palier a une surface cylindrique extérieure, la première mâchoire de serrage (100) a une surface de serrage semi-circulaire (104) qui s'ajuste exactement sur la surface extérieure cylindrique de l'un des côtés du logement (58) du palier lorsque la première mâchoire de serrage (100) est en contact avec celui-ci et en ce que la seconde mâchoire de serrage (102) a une surface de serrage semi-circulaire (106) qui s'ajuste exactement sur la surface extérieure cylindrique de l'autre côté du logement (58) du palier lorsque la seconde mâchoire de serrage (102) est en contact avec celui-ci.
  6. Groupe d'impression selon la revendication 1,
       caractérisé
       en ce que le dispositif de serrage comprend un premier cylindre de commande (130) monté sur la porte (82), une première tige de piston (132) déplaçable dans le premier cylindre de commande (130) et une articulation (105) d'assemblage de la seconde mâchoire de serrage (102) avec la première tige de piston (132), l'articulation (105) déplaçant la seconde mâchoire de serrage (102) par rapport à la première mâchoire de serrage (100) par suite du mouvement de la première tige de piston (132) dans le premier cylindre de commande (130).
  7. Groupe d'impression selon la revendication 6,
       caractérisé
       en ce qu'il y a pour l'articulation (105) une position extrême à laquelle la seconde mâchoire de serrage (102) est maintenue en contact avec le palier (59), indépendamment du fait qu'une pression existe dans le premier cylindre de commande (130).
  8. Groupe d'impression selon la revendication 6, qui comprend par ailleurs :
       un second cylindre de commande (140) monté sur le flasque (22) du châssis, une seconde tige de piston (142) déplaçable dans le second cylindre de commande (140) et un dispositif d'assemblage de la porte (82) avec la seconde tige de piston (142), le dispositif d'assemblage déplaçant la porte (82) entre les positions d'ouverture et de fermeture par suite du mouvement de la seconde tige de piston (142) dans le second cylindre de commande (140).
  9. Groupe d'impression selon la revendication 8,
       caractérisé
       en ce que le second cylindre de commande (140) est monté rotatif et tourne avec la porte (82) autour d'un axe d'écartement (146).
  10. Groupe d'impression selon la revendication 1,
       caractérisé
       en ce que le dispositif de serrage permet au palier (59) de se déplacer axialement par rapport à la première et à la seconde mâchoires de serrage (100, 102) sous l'effet d'une dilatation du cylindre de blanchet (20) due à la chaleur lorsque lesdites première et seconde mâchoires de serrage (100, 102) se trouvent à la position de serrage.
  11. Groupe d'impression selon la revendication 1,
       caractérisé
       en ce que le support (56) comprend un logement de palier (58) logeant un palier (59), le logement de palier (58) étant disposé sur le cylindre de blanchet (20) et étant déplaçable pour être mis à l'alignement et hors d'alignement coaxial avec le cylindre de blanchet (20) lorsque la porte (82) se trouve à la position d'ouverture, les première et seconde mâchoires de serrage (100, 102) entrant en contact par le logement (58) de palier avec le palier (59) lorsqu'elles se trouvent à la position de serrage et au moins l'une des mâchoires de serrage (100, 102) étant déplaçable vers le logement de palier (58) afin de mettre le logement de palier (58) à l'alignement coaxial avec le cylindre de blanchet (20) lors du mouvement de la position de dégagement à la position de serrage.
  12. Groupe d'impression selon la revendication 1,
       caractérisé
       en ce que le support (56) comprend un logement de palier (58) logeant le palier (59) et en ce que le logement de palier (58) est disposé sur le cylindre de blanchet et est fixé axialement par rapport à celui-ci.
  13. Groupe d'impression selon la revendication 12,
       caractérisé
       en ce que le support (56) comprend un dispositif de protection du logement de palier (58) contre la pénétration d'impuretés.
  14. Groupe d'impression selon la revendication 12, comprenant par ailleurs un dispositif d'alimentation en lubrifiant du palier (59), se composant d'un passage (210) par lequel le lubrifiant est dirigé de la porte (82) dans le palier (59).
  15. Groupe d'impression selon la revendication 14,
       caractérisé
       en ce que le passage comprend un tronçon (212) qui passe par la porte (82) et un tronçon (216) qui passe par le logement (58) du palier.
  16. Groupe d'impression selon la revendication 12,
       caractérisé
       en ce que le logement de palier (58) est disposée sur le cylindre de blanchet (20) et se déplace autour de l'axe (52) du cylindre par rapport au cylindre de blanchet (20) et par ailleurs en ce qu'il existe un dispositif qui bloque le mouvement de rotation du logement de palier (58) par rapport au cylindre de blanchet (20) lorsque la porte (82) se trouve à la position de fermeture.
  17. Groupe d'impression selon la revendication 16,
       caractérisé
       en ce que le dispositif (200) de blocage du mouvement de rotation se compose d'un accouplement à déclic à bille soumis à la force d'un ressort et qui peut s'encliqueter entre la porte (82) et le logement de palier (58).
EP93115538A 1992-10-27 1993-09-27 Unité d'impression avec fixation de paliers détachable Expired - Lifetime EP0596244B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US967141 1992-10-27
US07/967,141 US5241905A (en) 1992-10-27 1992-10-27 Printing unit with releasable bearing clamp

Publications (2)

Publication Number Publication Date
EP0596244A1 EP0596244A1 (fr) 1994-05-11
EP0596244B1 true EP0596244B1 (fr) 1996-04-17

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EP93115538A Expired - Lifetime EP0596244B1 (fr) 1992-10-27 1993-09-27 Unité d'impression avec fixation de paliers détachable

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JPH06191007A (ja) 1994-07-12
JP3117592B2 (ja) 2000-12-18
DE4332364C2 (de) 1995-06-29
EP0596244A1 (fr) 1994-05-11
USRE35646E (en) 1997-11-04
DE4332364A1 (de) 1994-04-28
US5241905A (en) 1993-09-07

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