EP0455799B1 - Bahn für ein bahnhandlungsgerät - Google Patents

Bahn für ein bahnhandlungsgerät Download PDF

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Publication number
EP0455799B1
EP0455799B1 EP91900849A EP91900849A EP0455799B1 EP 0455799 B1 EP0455799 B1 EP 0455799B1 EP 91900849 A EP91900849 A EP 91900849A EP 91900849 A EP91900849 A EP 91900849A EP 0455799 B1 EP0455799 B1 EP 0455799B1
Authority
EP
European Patent Office
Prior art keywords
web
sprocket
drive
holes
length
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
EP91900849A
Other languages
English (en)
French (fr)
Other versions
EP0455799A1 (de
Inventor
Robert Wallace
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.)
ALLPRINT GRAPHICS Ltd
Original Assignee
ALLPRINT GRAPHICS Ltd
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 ALLPRINT GRAPHICS Ltd filed Critical ALLPRINT GRAPHICS Ltd
Publication of EP0455799A1 publication Critical patent/EP0455799A1/de
Application granted granted Critical
Publication of EP0455799B1 publication Critical patent/EP0455799B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D5/00—Sheets united without binding to form pads or blocks
    • B42D5/02—Form sets
    • B42D5/023—Continuous form sets

Definitions

  • This invention relates to web handling apparatus of the type comprising a pair of sprocket wheels spaced on opposite sides of the machine and which have a plurality pins of projecting therefrom and equispaced around the periphery of each sprocket wheel for engaging with a line of equispaced holes down each side of the web of material which is to be fed through the machine by the drive to the sprocket wheels. More particularly, this invention relates to a web of material, usually but not necessarily a web of sign making stock, for use with such apparatus having a line of sprocket holes down each side of engagement by the sprocket wheel of the web handling apparatus.
  • each sprocket wheel with an extra registration pin, or possibly two extra registration pins between an adjacent pair or adjacent pairs of drive pins, thus providing a visually distinct group of three or five pins, distinguished from the other pins around the sprocket wheel, by virtue of a different spacing therebetween.
  • the extra registration pins are located at the midpoint between two adjacent drive pins, so that the visually distinct group of three (two drive and one registration) pins or five (three drive and two registration) pins is distinguishing by an interpin spacing of D /2 where D is the normal pin spacing, i.e. the normal spacing of all drive pins around the periphery of the sprocket wheel.
  • the web for use in the Gerber apparatus has at intervals along the length of the web equal to the circumference of the sprocket wheels an extra registration hole, or as the case may be, two extra registration holes, on the same line as the line sprocket drive holes down each side of the web, and located between an adjacent pair, or two immediately adjacent pairs of drive holes, and again preferably at a spacing of D /2.
  • the web thus has, down each side, at the appropriate intervals corresponding to the circumference of the sprocket wheels, a visually distinct group of three or five holes aligned with each other across the width of the web.
  • the present invention seeks to provide a web configuration which will fit equally well onto the apparatus of the Gerber type, i.e. having an extra registration pin, or possibly two, on each sprocket wheel, in line with and spaced between an adjacent pair, or between two immediately adjacent pairs, preferably at a spacing D /2, although that is quite immaterial as far as the present invention is concerned, or on apparatus with the more usual form of sprocket drive.
  • the web configuration of this invention is shown in the accompanying drawing, which is a plan view of a web (1), e.g. a web sign making stock, although the material from which the web is constructed is wholly immaterial to the present invention, of indefinite width, i.e. whatever width is appropriate to fit a particular apparatus, and indefinite length, and having a line of equispaced sprocket drive pin holes (2,2') down each side and spaced inwardly in distance "d" from the edge of the web.
  • d is immaterial and will depend on the intersprocket spacing of the apparatus concerned and the overall width of the web. Usually, "d” will be of the order of 1-2 cms.
  • each line of sprocket pin holes (2,2'), and down each side of the web are elongated slots (3,3') equispaced between each adjacent pair of sprocket pin holes (2,2') having a length "1" (see the enlargement) that is equal to or less than D-2r, where D is the interhole spacing and "r" is the radius of the sprocket pin holes, and a width "2r", i.e. a width that is equal to the diameter of the sprocket drive holes.
  • each slot (3,3') When considered along the length of the web, the opposite ends of each slot (3,3') are inwardly arcuate at a radius r' that is preferably equal to r.
  • each of the slots (3,3') is separated from its adjacent sprocket pin holes (2,2') by an arcuate web of material (4,4') having a uniform width "w", measured in the longitudinal direction of the web that is equal to at least 2mm, thereby to give the web adequate longitudinal strength.
  • the elongated slots (3,3') When loaded with a web according to the present invention, the elongated slots (3,3') will permit the web to be driven quite smoothly through the apparatus in the normal, conventional manner, i.e. by the equispaced drive pins on each sprocket engaging the drive holes (2,2') on the web.
  • the elongated slots (3,3') are simply there to permit the web to run over the extra registration pins(s) on each sprocket wheel, but serve no other purpose. In particular they do not serve the purpose nor the function of the extra registration holes as taught by the Gerber patent, since the slots (3,3') are incapable of distinguishing adjacent pairs of sprocket holes anywhere along the length of the web.
  • the slots (3,3') therefore do not serve any registration purpose or function.
  • a registration function can be provided in known manner, by providing an indicator mark at equal intervals along each edge of the web adjacent opposite pairs of drive holes (2,2').
  • Such an indicator is shown at (5,5') comprising an extra hole at intervals along each edge of the web at a longitudinal spacing equal to the circumference of the sprockets, and at a distance d' from the edge of the web where d' is greater (or less) than d by an amount greater than r + r i , where r i is the radius of the indicator hole.
  • d' is greater than d+r+r i , i.e.
  • the lines of the indicator holes (5,5') are preferably inset relative to the lines of the sprocket drive holes (2,2').
  • the indicator or registration holes (5,5'), or other indicator or registration marks such as a line or arrow printed at intervals along the length of the web, will be at an intermark spacing of xD, where x is an integer greater than 1 and D is the interhole spacing, corresponding of course to the interpin spacing on the sprocket drive wheels.
  • the intermark spacing will be equal to nxD, where x or D are as defined and n is the number of drive pins on each sprocket, or in other words, the intermark spacing is equal to the circumference of the sprocket wheels.

Landscapes

  • Advancing Webs (AREA)

Claims (3)

  1. Bahn (1) eines zeichenerzeugenden Materials unbestimmter Länge für die Verwendung mit einer Bahnhandhabungsvorrichtung der Art, die ein Paar im Abstand voneinander angeordneter Antriebszahnräder hat, wobei die Bahn Reihen von im gleichen Abstand angeordneten Zahnradantriebsstift-Antriebslöchern (2, 2') entlang der Länge der Bahn von den einander gegenüberliegenden Kanten der Bahn nach innen gesetzt für einen Eingriff mit den Zahnradstiften der Zahnradantriebe der Bahnhandungsvorrichtung hat, und zwischen jedem Zahnradstiftantriebsloch (2, 2') abwärts jeder Kante der Bahn einen länglichen Schlitz (3, 3') mit einer Breite in der Querrichtung der Bahn im wesentlichen gleich 2r, wobei r der Radius der Antriebslöcher ist, und mit einer Länge in der Längsrichtung der Bahn, die geringer als D - 2r ist, worin D der Abstand zwischen den Löchern und r wie oben definiert ist, umfaßt, worin die entgegengesetzten Enden jedes Schlitzes (3, 3') in der Längsrichtung der Bahn mit einem Radius r¹ nach innen gekrümmt sind, wobei r¹ = r, so daß zwischen jedem Schlitz (3, 3') und jedem Antriebsloch (2, 2') ein ununterbrochenes bogenförmiges Bahnstück (4, 4') von Material mit einer gleichmäßigen Breite (w) in der Längsrichtung der Bahn von wenigstens 2 mm bleibt.
  2. Bahn nach Anspruch 1, bei der in regelmäßigen Abständen entlang der Länge der Bahn (1) und auf entgegengesetzten Seiten derselben ausgerichtet, unmittelbar zu einem der Antriebslöcher (2, 2') in jeder Antriebslöcherreihe benachbart Markierungen (5, 5,), die die Lagegenauigkeit angeben, in einem Abstand zwischen den Markierungen entlang der Länge der Bahn von xD vorgesehen sind, worin x eine ganze Zahl größer als 1 ist und D der Abstand zwischen den Löchern ist.
  3. Bahn nach Anspruch 2, bei der die Anzeigemarkierungen die Form von gesonderten Lagegenauigkeitslöchern (5, 5') in Abständen entlang der Länge der Bahn (1) gleich xD und auf einer Linie haben, die von jeder Kante der Bahn um einen Abstand größer als der Abstand der Antriebslöcher (2, 2') von der Kante der Bahn nach innen gesetzt ist.
EP91900849A 1989-11-29 1990-11-29 Bahn für ein bahnhandlungsgerät Expired - Lifetime EP0455799B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8926944 1989-11-29
GB8926944A GB2238526B (en) 1989-11-29 1989-11-29 Web for web handling apparatus
PCT/GB1990/001859 WO1991008114A1 (en) 1989-11-29 1990-11-29 Web for web handling apparatus

Publications (2)

Publication Number Publication Date
EP0455799A1 EP0455799A1 (de) 1991-11-13
EP0455799B1 true EP0455799B1 (de) 1994-11-02

Family

ID=10667099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900849A Expired - Lifetime EP0455799B1 (de) 1989-11-29 1990-11-29 Bahn für ein bahnhandlungsgerät

Country Status (4)

Country Link
EP (1) EP0455799B1 (de)
DE (1) DE69013891D1 (de)
GB (1) GB2238526B (de)
WO (1) WO1991008114A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810494A (en) * 1996-09-06 1998-09-22 Gerber Systems Corporation Apparatus for working on sheets of sheet material and sheet material for use therewith
GB2323078A (en) * 1996-09-06 1998-09-16 Gerber Systems Corp Proof sheet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110315A (en) * 1964-09-01 1968-04-18 Dickinson John & Co Ltd Improvements in or relating to continuous stationery assemblies or form sets
DE1946643A1 (de) * 1969-08-14 1971-03-18 Schnug Walter Endlosformulare,Endlossaetze,Schnelltrennsaetze und endlose Kohlepapierbahnen mit gelochten Fuehrungsraendern
US4802692A (en) * 1987-08-20 1989-02-07 Stryd Thomas N Continuous perforated paper sheet for printer
GB2228924B (en) * 1989-02-10 1993-04-21 John Elliott Web material for web handling machine

Also Published As

Publication number Publication date
EP0455799A1 (de) 1991-11-13
GB2238526B (en) 1994-01-19
GB8926944D0 (en) 1990-01-17
GB2238526A (en) 1991-06-05
DE69013891D1 (de) 1994-12-08
WO1991008114A1 (en) 1991-06-13

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