EP0699609A2 - Dispositif de recouvrement à longueur variable pour une machine à imprimer - Google Patents

Dispositif de recouvrement à longueur variable pour une machine à imprimer Download PDF

Info

Publication number: EP0699609A2
Authority: EP; European Patent Office
Prior art keywords: elements; covering device; channel; wire; longitudinal direction
Prior art date: 1994-08-12
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.): Granted

Application number

EP95111645A

Other languages

German (de)

English (en)

Other versions

EP0699609B1 (fr

EP0699609A3 (fr

Inventor

Heinrich Beck

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.)

Manroland AG

Original Assignee

MAN Roland 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.)

1994-08-12

Filing date

1995-07-25

Publication date

1996-03-06

1995-07-25 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1996-03-06 Publication of EP0699609A2 publication Critical patent/EP0699609A2/fr

1997-01-29 Publication of EP0699609A3 publication Critical patent/EP0699609A3/fr

1999-05-06 Application granted granted Critical

1999-05-06 Publication of EP0699609B1 publication Critical patent/EP0699609B1/fr

2015-07-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000007639 printing Methods 0.000 title claims description 7
238000004804 winding Methods 0.000 claims description 4
239000011796 hollow space material Substances 0.000 claims description 2
238000004519 manufacturing process Methods 0.000 description 3
229910000639 Spring steel Inorganic materials 0.000 description 2
238000005452 bending Methods 0.000 description 2
238000010276 construction Methods 0.000 description 2
238000009434 installation Methods 0.000 description 2
230000005489 elastic deformation Effects 0.000 description 1
239000000463 material Substances 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
239000000758 substrate Substances 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H11/00—Feed tables
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/11—Length

Definitions

the invention relates to a length-adjustable cover device for a channel on a sheet-fed printing machine, consisting of a plurality of interconnected, elastically deformable elements which extend transversely to the longitudinal direction of the channel and are movably mounted in the longitudinal direction of the channel.
a cover device of the type mentioned is known for covering the channel between the two adjustable side marks of the sheet feeder of a printing press.
the individual elements are cut out of spring steel and connected to one another by renting.
the production of this known covering device is time-consuming and expensive.
the invention has for its object to provide a cover device of the type mentioned, which can be manufactured easily and inexpensively.
the individual elements and the connection of the elements to one another are bent from a single piece of spring steel wire.
the wire at the end of each element is shaped as an arch and / or loop so that it passes into the next element.
the invention makes use of the manufacturing methods of spring manufacturers in order to replace the complex covering device of known type composed of individual elements from spring band by a spring-elastic wire construction which consists of one piece and can be efficiently produced on a wire bending machine.
the invention therefore enables a substantial reduction in manufacturing costs, the operation of the covering device being retained without restriction. If spring wire with a circular cross-section is used to produce the covering device, this also leads to an improvement in function because the printing substrate slides more easily in the running direction over the covering device due to the rounded surface of the elements.
the arches or loops lie in a plane that is inclined, preferably approximately perpendicular, to the direction of movement of the elements.
the arches or loops require only a small amount of space in the longitudinal direction of the channel, and their elastic deformability, similar to that of a spiral spring, is mainly due to torsion of the spring wire, which makes the construction particularly elastic and increases the number of elements bridging the channel can be.
the elements are formed by sections of a plurality of successive wire windings surrounding a hollow space extending in the longitudinal direction of the channel.
the covering device is wound in a manner similar to a spiral spring, which further improves the elasticity and permits even more load-bearing elements in a given installation space.
guide rods running in the longitudinal direction of the channel can be provided, the arches, loops or wire windings encompassing the guide rods.
FIGS. 1 and 2 show a covering device 1 in its installed position in a channel 2 of a feed table 3 of a sheet feeder of a printing press. At its ends, the channel 2 is delimited by adjustable side marks 4, 5, which are used for the lateral alignment of the sheets.
the covering device 1 is held from above by the contact table 3 and from below by two guide rods 6, which extend in the longitudinal direction of the channel 2.
the covering device 1 consists of individual elements 7 spanning the channel, the ends 8, 9 of which are adapted by double bending to the shape of the edges of the plant table 3, which delimit the channel 2. Between the edges of the channel 2, the elements 7 are straight and are held at such a height by the guide rods 6 that their upper sides lie in the table plane. A sheet P of printing material is therefore passed through the elements 7 in the running direction R without any significant resistance over the channel 2. All elements 7 of the covering device 1 are formed by a single spring wire, two adjacent elements 7 being connected at their adjacent ends 8 and 9 by a semicircular arch 10 and 11, respectively. The sheets 10, 11 lie here in a plane parallel to the table plane on the underside of the table 3.
Figure 1 of the drawing shows the covering device in a position in which the individual elements 7 are aligned parallel to one another. If the distance between the side marks 4, 5 is reduced, the distance between the ends 8 and 9 of the elements 7 that are not connected to one another by an arch 10 or 11 is reduced, the individual sheets 10, 11 being elastically deformed in the sense of reducing their diameter. In this way, the covering device 1 automatically adapts to the change in the channel length. If the length of the channel 2 is increased by moving the side marks 4, 5 apart, the length of the covering device is correspondingly adjusted in the opposite direction, in that the ends 8 and 9 of the elements 7 which are not connected to one another move away from one another.
the cover device 12 shown in FIGS. 3 and 4 is provided for the same installation conditions as the cover device 1 described above.
the elements 13 of the cover device 12 therefore likewise have ends 14 and 15 which are bent twice.
the cover device 12 is also bent from a single spring wire .
the adjacent ends 14, 15 of two elements 13 are connected by loops 16 and 17, respectively, which lie in a plane approximately perpendicular to the longitudinal direction of the channel. This makes it possible to arrange the individual elements 13 at a significantly smaller distance from one another, as a result of which the number of supporting elements bridging the channel is increased.
Changes in length of the covering device 12 primarily lead to a torsional stress on the loops 16, 17, which results in a higher elasticity than in the exemplary embodiment according to FIGS. 1 and 2.
each element 21 forms a turn with a rod 22 and two arches 23, 24, which is followed by the turn of a neighboring element.
the structure of the device 18 thus corresponds to a spiral spring, it differs from such only in that the shape of the turns deviates from the circular shape.
This embodiment also allows a small distance between the individual elements 21 from one another.
the elastic deformation in the event of a change in length is distributed as a torsion almost over the entire length of the spring wire, so that a high degree of elasticity can also be achieved here.

Landscapes

Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Auxiliary Devices For And Details Of Packaging Control (AREA)

EP95111645A 1994-08-12 1995-07-25 Dispositif de recouvrement à longueur variable pour une machine à imprimer Expired - Lifetime EP0699609B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4428527A DE4428527C1 (de)	1994-08-12	1994-08-12	In ihrer Länge veränderbare Abdeckvorrichtung für eine Druckmaschine
DE4428527		1994-08-12

Publications (3)

Publication Number	Publication Date
EP0699609A2 true EP0699609A2 (fr)	1996-03-06
EP0699609A3 EP0699609A3 (fr)	1997-01-29
EP0699609B1 EP0699609B1 (fr)	1999-05-06

Family

ID=6525496

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95111645A Expired - Lifetime EP0699609B1 (fr)	1994-08-12	1995-07-25	Dispositif de recouvrement à longueur variable pour une machine à imprimer

Country Status (3)

Country	Link
EP (1)	EP0699609B1 (fr)
AT (1)	ATE179672T1 (fr)
DE (2)	DE4428527C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10236487A1 (de) *	2002-08-09	2004-02-19	Koenig & Bauer Ag	Abdeckvorrichtung
DE10236488A1 (de) *	2002-08-09	2004-02-19	Koenig & Bauer Ag	Vorrichtung zum Abdecken
DE10335534A1 (de) *	2003-07-31	2005-02-17	Metronic Ag	Grubenabdeckung
DE102004032110B4 (de) *	2004-07-02	2019-06-27	Koenig & Bauer Ag	Abdeckvorrichtung
DE202005008786U1 (de) *	2005-05-25	2006-10-05	Thieme Gmbh & Co. Kg	Flachbettdruckmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1611362C3 (de) *	1967-11-24	1981-09-10	Maschinenbau Oppenweiler Binder & Co, 7155 Oppenweiler	Ausrichtetisch zum Fördern und gleichzeitgem Ausrichten von Bogen aus Papier, Pappe oder dgl
DE8915330U1 (de) *	1989-03-13	1990-06-21	Maschinenbau Oppenweiler Binder GmbH & Co, 7155 Oppenweiler	Ausrichtetisch
DE4211927C2 (de) *	1992-04-09	1994-02-17	Heidelberger Druckmasch Ag	Anlegetisch im Bereich von Seitenmarken
DE4240660C1 (de) *	1992-12-03	1994-02-10	Roland Man Druckmasch	Bogenstützeinrichtung

1994
- 1994-08-12 DE DE4428527A patent/DE4428527C1/de not_active Expired - Fee Related
1995
- 1995-07-25 AT AT95111645T patent/ATE179672T1/de not_active IP Right Cessation
- 1995-07-25 EP EP95111645A patent/EP0699609B1/fr not_active Expired - Lifetime
- 1995-07-25 DE DE59505826T patent/DE59505826D1/de not_active Expired - Fee Related

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number	Publication date
EP0699609B1 (fr)	1999-05-06
ATE179672T1 (de)	1999-05-15
DE4428527C1 (de)	1995-11-30
DE59505826D1 (de)	1999-06-10
EP0699609A3 (fr)	1997-01-29

Legal Events

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