EP0218978A1 - Device for conveying web-like material, e.g. photographic paper, through a treating machine - Google Patents

Device for conveying web-like material, e.g. photographic paper, through a treating machine Download PDF

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Publication number
EP0218978A1
EP0218978A1 EP86113391A EP86113391A EP0218978A1 EP 0218978 A1 EP0218978 A1 EP 0218978A1 EP 86113391 A EP86113391 A EP 86113391A EP 86113391 A EP86113391 A EP 86113391A EP 0218978 A1 EP0218978 A1 EP 0218978A1
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EP
European Patent Office
Prior art keywords
drag
recess
band
width
clip
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.)
Granted
Application number
EP86113391A
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German (de)
French (fr)
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EP0218978B1 (en
Inventor
Ernst Schweiger
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Agfa Gevaert AG
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Agfa Gevaert AG
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Publication of EP0218978A1 publication Critical patent/EP0218978A1/en
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Publication of EP0218978B1 publication Critical patent/EP0218978B1/en
Expired legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
    • G03D3/135—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed between chains or belts, or with a leading strip

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Such a transport device is such.
  • a clip is described in which on a fastening part made of resilient metal, both the metal-shaped arm is fastened with a hook encompassing the side of the drag belt facing away from the arm and two further hooks encompassing the edge of the drag tape facing the arm.
  • the attachment of these bent metal hooks on the resilient sheet metal part is carried out by spot welding, so that by the large number of connecting parts the bracket is very expensive to manufacture.
  • the holding force of the clip on the drag belt is determined depending on the width of the channel formed by the hooks for the drag belt and the elastic transverse deflection of the drag belt which is forced thereby, so that the rigidity of the drag belt is decisive for the drag force.
  • this must not be too great because of the deflection via the belt rollers and the flexibility required for attaching the clips to the drag belt.
  • the object of the invention is therefore to provide a clamp which can be produced more cost-effectively and which permits the transmission of higher towing forces to the towing belt. This object is achieved by the invention described in claim 1.
  • the clip according to the invention is undoubtedly very inexpensive to manufacture, since z. B. can be punched out of sheet metal or plastic sheets of a suitable material with a comparatively simple tool or injection molded from plastic. A one-piece production of the clip is also easily possible.
  • the attachment to the drag band by immersing the drag band in the recess in the bracket ensures that the power transmission between the drag belt and the clip takes place not only on the side edges of the drag belt, but also on the front and rear of the belt. This happens once by investing in the Clamp, on the other hand by engaging the projections of the clip on the other side of the drag belt, whereby strong pressure and thus high frictional forces arise without the surface pressure reaching the sizes damaging the edges of the drag belt.
  • Fig. 1, 2 denotes a drag band, which is made of a plastic resistant to the chemicals used in the treatment of photographic layers, e.g. B. polyethylene, and is reproduced in natural size.
  • This drag belt has a thickness of approximately 0.8 mm and is so flexible that it can be deflected around the deflection rollers with a diameter of approximately 50 mm by 180 ° without difficulty.
  • the arrow 2a indicated on the drag belt 2 shows the direction in which this drag belt for guiding a photographic layer carrier tape 3 moves through the processing machine.
  • the path of the photographic material strip 3 runs parallel to its path at a distance of approximately half the width of the drag belt, deflection rollers also being provided at the deflection points in the device, via which the material strip 3 is guided through a clamp 1.
  • these deflecting rollers are expediently driven approximately in the manner of the German patent specification 26 03 659.
  • the clamp 1 consists of a holding part lying in the area of the drag belt and an arm la for fastening the material band 3.
  • a slot or two mutually parallel slots lb are provided for fastening the material band 3, the length of which is greater than the width of the Material tape 3 and its width is significantly larger than the thickness of the material tape 3.
  • the slots are rounded at their ends to avoid the creation of notch stresses.
  • the beginning of the material band is passed from the top through the plane of the drawing down through the upper slot, then on the back of the clip against the arrow 2a down and through the lower slot through the plane of the drawing up again, so that after this loop through the clamp arm la, the back of the beginning of the tape rests against the back of the remaining tape. Frictional forces supported by the band tension thus hold the material band 3 with sufficient security in the clamp arm la.
  • the bracket 1 with its arm la is a flat structure which is delimited by two mutually parallel surfaces. It can e.g. B. from relatively thin stainless steel sheet or from a correspondingly thicker plastic plate, the cutting edges must be carefully deburred or rounded. But it can also be injection molded from a plastic as a molded part. Polycarbonate, polypropylene or polyamide are particularly suitable as the material for the molded part. The thickness and / or width of the material around the recess are dimensioned such that the clamp can only be deformed to an insignificant extent by the forces transmitted by the drag belt.
  • the clip 1 contains in this area an almost square recess lc, which is in length and width approximately corresponds to the width of the drag band 2.
  • the width of the recess is slight, e.g. B. by two percent of the width of the tow band 2, less than the tow band width.
  • the trailing band edges protrusions ld.
  • the projections have the shape of isosceles triangles, the base of which runs parallel to the direction of the tow band and the height of which is between one tenth and one fourth of the width of the tow band, in the exemplary embodiment shown one fifth of the width of the tow band.
  • the base of these triangular projections 1d does not extend over the entire length of the recess 1c, but only approximately symmetrically over four fifths of this length.
  • a recessed grip lf is provided on the edge of the clip facing away from the arm la.
  • the clip Since the clip is symmetrical, it can be attached to the drag belt 2 by cantilevering to the right and to the left.
  • the attachment of a clip 1 to the drag belt is carried out on a straight running path of the drag belt 2 z. 1 with the material band 3 fastened to the arm in the running direction to the right of the drag band in such a way that the clip on the left in the running direction Edge is brought up, with the operator first creating a bulge in the drag band with the second hand and inserting it from behind through the left part of the recess 1c, so that the left edge of the drag band covers the left projection ld.
  • 3 and 4 show the shape of the drag belt 2 in the area of the recess 1c as a two-dimensionally curved surface which has a high dimensional stability.
  • This dimensional stability leads to the fact that the drag band is pressed with high force both on the side edges of the recess lc, as well as on the upper side of the projections ld and on the transverse edges of the recess lc, and thus high frictional forces are transmitted from the clip to the drag belt can.
  • the surface pressure is limited, so that damage or abrasion of the drag belt is almost impossible or at least considerably reduced compared to metal clips.
  • only one of the two projections ld namely that on the side of the arm la, has the shape of a triangle with a base along the longitudinal edges of the recess lc, while the projection facing away from the arm la has the shape of a rectangle with very rounded corners.
  • the length of these projections in the running direction makes up about three fifths of the length of the recess 1c, so that there is sufficient space for the side edges of the drag band 2 to rest against the side edges of the recess 1c.
  • the rectangular projection lg extends almost over half the width of the recess 1c.
  • the tasks of the right and left hand are interchanged to attach the bracket with arm la to the left.
  • the clip 1 is ejected from the drag belt 2 after the passage through the treatment machine has been carried out in a known manner either by inserting a wedge between the drag belt and the leading edge of the clip 1 approximately along the center line of the drag belt or by strongly compressing the edges of the drag belt with simultaneous lifting movement.
  • the projections can of course also have trapezoidal or other similar shapes which allow the edges of the drag tape to be inserted into the recess 1c.
  • the length of the recess 1c in the running direction can also be somewhat larger or smaller than the drag belt width. If the length is too long, however, the relatively stiff clamp interferes with the deflection around the drag belt rollers, while the too small length with the same drag force causes excessive pressure on the belt edges.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Advancing Webs (AREA)
  • Clamps And Clips (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)

Abstract

Die Anmeldung betrifft eine Vorrichtung zum Transportieren von bandförmigem Material, insbesondere Fotopapier, durch eine Behandlungsmaschine mittels eines durch die Maschine gefürten Schleppbandes, an dem der Anfang des Materialbandes mittels einer Klammer befestigbar ist. Diese Klammer weist den Schleppbandrand seitlich umgreifende Mittel zur lösbaren Befestigung auf dem elastischen Schleppband unter Querverformung und einen über das Schleppband seitlich hinausragenden Arm zur Befestigung des Materialbandes auf. Um die Herstellkosten zu senken und die Schleppkraft zu erhöhen, ist die Klammer einstückig und weist eine ebene Form auf. Die Mittel zur lösbaren Befestigung auf dem Schleppband sind als Aussparung (1c) in der klammer ausgebildet, die in Länge und Breite etwa der Breite des Schleppbandes (2) entspricht. In die Aussparung (1c) ragen quer zur Lägsrichtung des Schleppbandes (2) in der befestigten Stellung die Schleppbandränder übergreifende Vorsprünge (1d).The application relates to a device for transporting band-shaped material, in particular photo paper, through a treatment machine by means of a drag belt guided by the machine, to which the beginning of the material belt can be fastened by means of a clip. This clip has means which encompass the trailing belt edge laterally for releasable fastening on the elastic trailing band with transverse deformation and an arm which projects laterally beyond the trailing band for fastening the material band. In order to reduce the manufacturing costs and increase the towing force, the clamp is in one piece and has a flat shape. The means for releasable attachment to the drag belt are designed as a recess (1c) in the bracket, which corresponds in length and width to approximately the width of the drag belt (2). In the recess (1c) project transversely to the longitudinal direction of the drag band (2) in the attached position, the trailing band edges protrusions (1d).

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

Eine derartige Transportvorrichtung ist z. B. aus der DE-AS 1 154 040 bekannt. Dort ist eine Klammer beschrieben, bei der auf einem Befestigungsteil aus federndem Metall sowohl der aus Metall geformte Arm mit einem die dem Arm abgewandte Seite des Schleppbandes umgreifenden Haken als auch zwei weitere die dem Arm zugewandte Kante des Schleppbandes umgreifende Haken befestigt sind. Die Befestigung dieser aus Metall gebogenen Haken auf dem federnden Blechteil erfolgt durch Punktschweißung, so daß durch die große Anzahl von zu verbindenden Teilen die Klammer sehr teuer in der Herstellung ist. Zum anderen ist die Haltekraft der Klammer auf dem Schleppband je nach Breite des von den Haken gebildeten Kanals für das Schleppband und die dadurch erzwungene elastische Querdurchbiegung des Schleppbandes bestimmt, so daß die Steifigkeit des Schleppbandes für die Schleppkraft ausschlaggebend ist. Diese darf jedoch wegen der Umlenkung über die Bandrollen und der zum Ansetzen der Klammern am Schleppband erforderlichen Flexibilität nicht zu groß sein.Such a transport device is such. B. from DE-AS 1 154 040 known. There a clip is described in which on a fastening part made of resilient metal, both the metal-shaped arm is fastened with a hook encompassing the side of the drag belt facing away from the arm and two further hooks encompassing the edge of the drag tape facing the arm. The attachment of these bent metal hooks on the resilient sheet metal part is carried out by spot welding, so that by the large number of connecting parts the bracket is very expensive to manufacture. On the other hand, the holding force of the clip on the drag belt is determined depending on the width of the channel formed by the hooks for the drag belt and the elastic transverse deflection of the drag belt which is forced thereby, so that the rigidity of the drag belt is decisive for the drag force. However, this must not be too great because of the deflection via the belt rollers and the flexibility required for attaching the clips to the drag belt.

Aufgabe der Erfindung ist es deshalb, eine kostengünstiger herstellbare Klammer zu schaffen, die die Übertragung höherer Schleppkräfte auf das Schleppband erlaubt. Diese Aufgabe wird gelöst durch die im Anspruch 1 beschriebene Erfindung.The object of the invention is therefore to provide a clamp which can be produced more cost-effectively and which permits the transmission of higher towing forces to the towing belt. This object is achieved by the invention described in claim 1.

Die erfindungsgemäße Klammer ist zweifellos sehr kostengünstig herstellbar, da sie z. B. aus Blech- oder Kunststoffplatten eines geeigneten Werkstoffes mit einem vergleichsweise einfachen Werkzeug ausgestanzt oder aus Kunststoff gespritzt werden kann. Auch eine einteilige Herstellung der Klammer ist ohne weiteres möglich. Zum anderen wird durch die Befestigung am Schleppband mittels des Eintauchens des Schleppbandes in die Aussparung in der Klammer erreicht, daß die Kraftübertragung zwischen dem Schleppband und der Klammer nicht nur an den Seitenkanten des Schleppbandes erfolgt, sondern auch auf Vorder- und Rückseite des Bandes. Dies geschieht einmal durch Anlage an der Klammer, zum anderen durch Anlage der Vorsprünge der Klammer an der anderen Seite des Schleppbandes, wobei starker Andruck und damit hohe Reibungskräfte entstehen, ohne daß dabei die Flächenpressung die Schleppbandkanten schädigende Größen erreicht.The clip according to the invention is undoubtedly very inexpensive to manufacture, since z. B. can be punched out of sheet metal or plastic sheets of a suitable material with a comparatively simple tool or injection molded from plastic. A one-piece production of the clip is also easily possible. On the other hand, the attachment to the drag band by immersing the drag band in the recess in the bracket ensures that the power transmission between the drag belt and the clip takes place not only on the side edges of the drag belt, but also on the front and rear of the belt. This happens once by investing in the Clamp, on the other hand by engaging the projections of the clip on the other side of the drag belt, whereby strong pressure and thus high frictional forces arise without the surface pressure reaching the sizes damaging the edges of the drag belt.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen im Zusammenhang mit der Beschreibung von Ausführungsbeispielen, die anhand von Figuren nachstehend beschrieben sind. Es zeigen

  • Fig. 1 eine erfindungsgemäße Klammer mit daran befestigtem Papierband, die an dem Schleppband angebracht ist,
  • Fig. 2 den Befestigungsteil der Klammer am Schleppband im Grundriß,
  • Fig. 3 einen Schnitt durch die am Schleppband befestigte Klammer quer zur Schleppbandlängsrichtung längs der Schnittlinie III-III in Fig. 2,
  • Fig. 4 einen Schnitt durch die am Band befestigte Klammer längs der Schnittlinie IV-IV in Fig. 2 in Schleppbandlängsrichtung und
  • Fig. 5 eine etwas abgeänderte Klammerform.
Further details and advantages of the invention emerge from the subclaims in connection with the description of exemplary embodiments, which are described below with reference to figures. Show it
  • 1 is a clip according to the invention with attached paper tape, which is attached to the drag belt,
  • 2 shows the fastening part of the clip on the drag tape in plan,
  • 3 shows a section through the clip fastened to the drag line transversely to the longitudinal direction of the drag line along the section line III-III in FIG. 2,
  • Fig. 4 shows a section through the clip attached to the belt along the section line IV-IV in Fig. 2 in the longitudinal direction and drag band
  • Fig. 5 shows a slightly modified bracket shape.

In Fig. 1 ist mit 2 ein Schleppband bezeichnet, das aus einem für die bei der Behandlung fotografischer Schichten verwendeten Chemikalien beständigen Kunststoff, z. B. Polyäthylen, besteht und in natürlicher Größe wiedergegeben ist. Dieses Schleppband hat eine Dicke von etwa 0,8 mm und ist so flexibel, daß es um die Umlenkrollen mit einem Durchmesser von etwa 50 mm ohne Schwierigkeiten um 180° umlenkbar ist. Der auf dem Schleppband 2 angegebene Pfeil 2a zeigt die Richtung, in die dieses Schleppband zur Führung eines fotografischen Schichtträgerbandes 3 sich durch die Behandlungsmaschine bewegt. Die Bahn des fotografischen Materialbandes 3 verläuft in einem Abstand von etwa der halben Breite des Schleppbandes parallel zu dessen Bahn, wobei an den Umlenkstellen im Gerät ebenfalls Umlenkrollen vorgesehen sind, über die das Materialband 3 durch eine Klammer 1 geführt wird. Für lange Behandlungsstrecken sind diese Umlenkrollen zweckmäßigerweise etwa nach Art der Deutschen Patentschrift 26 03 659 angetrieben.In Fig. 1, 2 denotes a drag band, which is made of a plastic resistant to the chemicals used in the treatment of photographic layers, e.g. B. polyethylene, and is reproduced in natural size. This drag belt has a thickness of approximately 0.8 mm and is so flexible that it can be deflected around the deflection rollers with a diameter of approximately 50 mm by 180 ° without difficulty. The arrow 2a indicated on the drag belt 2 shows the direction in which this drag belt for guiding a photographic layer carrier tape 3 moves through the processing machine. The path of the photographic material strip 3 runs parallel to its path at a distance of approximately half the width of the drag belt, deflection rollers also being provided at the deflection points in the device, via which the material strip 3 is guided through a clamp 1. For long treatment distances, these deflecting rollers are expediently driven approximately in the manner of the German patent specification 26 03 659.

Die Klammer 1 besteht aus einem im Bereich des Schleppbandes liegenden Halteteil und einem Arm la zur Befestigung des Materialbandes 3. In dem Arm la sind zur Befestigung des Materialbandes 3 ein Schlitz bzw. zwei zueinander parallele Schlitze lb vorgesehen, deren Länge größer als die Breite des Materialbandes 3 und deren Breite deutlich größer als die Dicke des Materialbandes 3 ist. An ihren Enden sind die Schlitze verrundet, um das Entstehen von Kerbspannungen zu vermeiden. Zur Befestigung an der Klammer wird der Anfang des Materialbandes von der Oberseite durch die Zeichnungsebene nach unten durch den oberen Schlitz geführt, sodann auf der Rückseite der Klammer entgegen dem Pfeil 2a nach unten und durch den unteren Schlitz durch die Zeichnungsebene nach oben wieder durchgeführt, so daß nach dieser Schleife durch den Klammerarm la die Rückseite des Bandanfangs wieder an der Rückseite des übrigen Bandes anliegt. Durch die Bandspannung unterstützte Reibungskräfte halten so das Materialband 3 mit ausreichender Sicherheit in dem Klammerarm la.The clamp 1 consists of a holding part lying in the area of the drag belt and an arm la for fastening the material band 3. In the arm la a slot or two mutually parallel slots lb are provided for fastening the material band 3, the length of which is greater than the width of the Material tape 3 and its width is significantly larger than the thickness of the material tape 3. The slots are rounded at their ends to avoid the creation of notch stresses. For Attachment to the clip, the beginning of the material band is passed from the top through the plane of the drawing down through the upper slot, then on the back of the clip against the arrow 2a down and through the lower slot through the plane of the drawing up again, so that after this loop through the clamp arm la, the back of the beginning of the tape rests against the back of the remaining tape. Frictional forces supported by the band tension thus hold the material band 3 with sufficient security in the clamp arm la.

Die Klammer 1 mit ihrem Arm la ist ein ebenes Gebilde, das von zwei zueinander parallelen Flächen begrenzt ist. Es kann z. B. aus verhältnismäßig dünnem rostfreiem Stahlblech oder aus einer entsprechend dickeren Kunststoffplatte gestanzt sein, wobei die Schnittkanten sorgfältig entgratet bzw. verrundet sein müssen. Es kann aber auch aus einem Kunststoff als Formteil gespritzt sein. Als Werkstoff für das Spritzteil kommen insbesondere Polykarbonat, Polypropylen oder Polyamid in Frage. Dicke und/oder Breite des Werkstoffes um die Aussparung herum sind so bemessen, daß die Klammer durch die vom Schleppband übertragenen Kräfte nur unwesentlich verformbar ist.The bracket 1 with its arm la is a flat structure which is delimited by two mutually parallel surfaces. It can e.g. B. from relatively thin stainless steel sheet or from a correspondingly thicker plastic plate, the cutting edges must be carefully deburred or rounded. But it can also be injection molded from a plastic as a molded part. Polycarbonate, polypropylene or polyamide are particularly suitable as the material for the molded part. The thickness and / or width of the material around the recess are dimensioned such that the clamp can only be deformed to an insignificant extent by the forces transmitted by the drag belt.

Zur lösbaren Befestigung der Klammer 1 an dem Schleppband 2 sind in den Fig. 2 bis 4 näher dargestellte Mittel vorgesehen. Die Klammer 1 enthält in diesem Bereich eine nahezu quadratische Aussparung lc, die in Länge und Breite etwa mit der Breite des Schleppbandes 2 übereinstimmt. Die Breite der Aussparung ist dabei geringfügig, z. B. um zwei Prozent der Breite des Schleppbandes 2, geringer als die Schleppbandbreite. In die Aussparung 1c hinein ragen nun quer zur Längsrichtung des Schleppbandes 2 in der befestigten Stellung die Schleppbandränder übergreifende Vorsprünge ld. Diese Vorsprünge haben gemäß Fig. 2 die Form gleichschenkeliger Dreiecke, deren Basis parallel zur Schleppbandrichtung verläuft und deren Höhe zwischen ein Zehntel bis ein Viertel der Breite des Schleppbandes, im gezeigten Ausführungsbeispiel ein Fünftel der Breite des Schleppbandes, ausmacht. Die Basis dieser dreieckförmigen Vorsprünge ld erstreckt sich nicht über die gesamte Länge der Aussparung lc, sondern nur etwa symmetrisch über vier Fünftel dieser Länge.For the releasable fastening of the clip 1 to the drag belt 2, means shown in more detail in FIGS. 2 to 4 are provided. The clip 1 contains in this area an almost square recess lc, which is in length and width approximately corresponds to the width of the drag band 2. The width of the recess is slight, e.g. B. by two percent of the width of the tow band 2, less than the tow band width. In the recess 1c project transversely to the longitudinal direction of the drag band 2 in the attached position, the trailing band edges protrusions ld. 2, the projections have the shape of isosceles triangles, the base of which runs parallel to the direction of the tow band and the height of which is between one tenth and one fourth of the width of the tow band, in the exemplary embodiment shown one fifth of the width of the tow band. The base of these triangular projections 1d does not extend over the entire length of the recess 1c, but only approximately symmetrically over four fifths of this length.

Zur Ersparnis von Material und um beim Ansetzen der Klammer am Schleppband die Handhabung zu erleichtern, ist an dem dem Arm la abgewandten Rand der Klammer eine Griffmulde lf vorgesehen.To save material and to facilitate handling when attaching the clip to the drag belt, a recessed grip lf is provided on the edge of the clip facing away from the arm la.

Da die Klammer symmetrisch ist, kann sie sowohl nach rechts als auch nach links auskragend an dem Schleppband 2 befestigt werden.Since the clip is symmetrical, it can be attached to the drag belt 2 by cantilevering to the right and to the left.

Die Befestigung einer Klammer 1 an dem Schleppband erfolgt an einer geradlinigen Laufstrecke des Schleppbandes 2 z. B. gemäß Fig. 1 mit dem am Arm befestigten Materialband 3 in Laufrichtung rechts vom Schleppband derart, daß die Klammer an die in Laufrichtung linke Kante herangeführt wird, wobei zunächst von der Bedienungsperson mit der zweiten Hand eine Ausbuchtung des Schleppbandes erzeugt und von hinten durch den linken Teil der Aussparung 1c durchgesteckt wird, so daß der linke Schleppbandrand den linken Vorsprung ld überdeckt. Sodann wird durch gleichzeitigen Druck einer Hand auf die Griffmulde 1f und die gegenüberliegende Schleppbandkante eine Querwölbung des Schleppbandes hervorgerufen derart, daß die dem Materialband 3 zugewandte Kante des Schleppbandes durch geringen Fingerdruck über die Spitze des in Transportrichtung des Bandes gesehen rechten Vorsprunges ld hinweggleitet und so ein Anliegen der Schleppbandkante an den Seitenrändern der Aussparung 1c neben dem Vorsprung ld erlaubt.The attachment of a clip 1 to the drag belt is carried out on a straight running path of the drag belt 2 z. 1 with the material band 3 fastened to the arm in the running direction to the right of the drag band in such a way that the clip on the left in the running direction Edge is brought up, with the operator first creating a bulge in the drag band with the second hand and inserting it from behind through the left part of the recess 1c, so that the left edge of the drag band covers the left projection ld. Then, by simultaneously pressing one hand on the recessed grip 1f and the opposite edge of the drag band, a transverse curvature of the drag band is brought about in such a way that the edge of the drag band facing the material band 3 slides over the tip of the right-hand projection ld seen in the direction of transport of the band by slight finger pressure and thus a Allow the trailing edge to rest on the side edges of the recess 1c next to the projection ld.

Es kann auch eine automatische Anklammervorrichtung mit die Schleppbandkanten zusammendrückenden Rollen etwa nach der Lehre der deutschen Patentschrift 25 12 826 verwendet werden.It is also possible to use an automatic clip-on device with rollers which compress the trailing belt edges, for example according to the teaching of German Patent 25 12 826.

Aus den Fig. 3 und 4 ergibt sich die Form des Schleppbandes 2 im Bereich der Aussparung lc als zweidimensional gekrümmte Fläche, die eine hohe Formstabilität aufweist. Diese Formstabilität führt dazu, daß das Schleppband sowohl an die Seitenkanten der Aussparung lc, als auch auf die Oberseite der Vorsprünge ld und auf die unten liegenden Querkanten der Aussparung lc mit hoher Kraft angedrückt wird und somit hohe Reibungskräfte von der Klammer auf das Schleppband übertragen werden können. Andererseits ist gerade beim Aufeinandertreffen von zwei Kunststoffoberflächen die Flächenpressung begrenzt, so daß Beschädigungen oder Abrieb des Schleppbandes nahezu ausgeschlossen oder zumindest gegenüber Metallklammern erheblich reduziert werden.3 and 4 show the shape of the drag belt 2 in the area of the recess 1c as a two-dimensionally curved surface which has a high dimensional stability. This dimensional stability leads to the fact that the drag band is pressed with high force both on the side edges of the recess lc, as well as on the upper side of the projections ld and on the transverse edges of the recess lc, and thus high frictional forces are transmitted from the clip to the drag belt can. On the other hand, When two plastic surfaces meet, the surface pressure is limited, so that damage or abrasion of the drag belt is almost impossible or at least considerably reduced compared to metal clips.

Bei der in Fig. 5 gezeigten, abgewandelten Form der Klammer hat nur einer der beiden Vorsprünge ld, und zwar der auf der Seite des Arms la, die Form eines Dreiecks mit Basis längs den Längskanten der Aussparung lc, während der dem Arm la abgekehrte Vorsprung die Form eines Rechtecks mit stark verrundeten Ecken aufweist. Die Länge dieser Vorsprünge in Laufrichtung macht etwa drei Fünftel der Länge der Aussparung 1c aus, so daß genügend Raum für das Anliegen der Seitenkanten des Schleppbandes 2 an den Seitenkanten der Aussparung lc verbleibt. Der rechteckige Vorsprung lg erstreckt sich nahezu über die Hälfte der Breite der Aussparung 1c.In the modified form of the clamp shown in FIG. 5, only one of the two projections ld, namely that on the side of the arm la, has the shape of a triangle with a base along the longitudinal edges of the recess lc, while the projection facing away from the arm la has the shape of a rectangle with very rounded corners. The length of these projections in the running direction makes up about three fifths of the length of the recess 1c, so that there is sufficient space for the side edges of the drag band 2 to rest against the side edges of the recess 1c. The rectangular projection lg extends almost over half the width of the recess 1c.

Zum Befestigen der Klammer gemäß Fig. 5 wird zunächst von der Bedienungsperson der Vorsprung lg mit dem Daumen der linken Hand etwas nach hinten gedrückt, so daß das hinter der Klammer laufende Schleppband 3 in Fig. 5 von rechts nach links vor dem Vorsprung 2g bis an den linken Rand der Aussparung 1c geschoben werden kann. Die Bedienungsperson faßt dann mit dem Daumen der linken Hand auf das Schleppband, mit dem Zeigefinger derselben Hand die Klammer am Vorsprung lg von hinten und folgt der Bewegung des Schleppbandes. In dieser Haltung wird der Vorsprung lg mit dem Schleppband unter Durchbiegung der die Aussparung umrahmenden Stege lh der Klammer und Querwölbung des Schleppbandes nach vorne gebogen und die armseitige Kante des Schleppbandes an dem armseitigen Vorsprung ld zur Anlage gebracht, bis durch geringen Druck eines Fingers der anderen, rechten Hand diese Kante über den armseitigen Vorsprung ld gehoben werden kann.5 is first pressed by the operator of the projection lg with the thumb of the left hand somewhat backwards, so that the drag band 3 running behind the clip in Fig. 5 from right to left in front of the projection 2g to the left edge of the recess 1c can be pushed. The operator then grips the trailing strap with the thumb of the left hand, the clip on the projection lg from behind with the index finger of the same hand and follows the movement of the trailing strap. In this position, the lg protrusion is pulled through with the tow band Bending of the webs framing the recess lh of the clamp and transverse curvature of the drag band are bent forward and the arm-side edge of the drag band is brought into contact with the arm-side projection ld until this edge is lifted over the arm-side projection ld by slight pressure from a finger of the other right hand can be.

Für die Anbringung der Klammer mit Arm la nach links vertauschen sich die Aufgaben der rechten und der linken Hand.The tasks of the right and left hand are interchanged to attach the bracket with arm la to the left.

Das Abwerfen der Klammer 1 von dem Schleppband 2 nach vollendetem Durchlauf durch die Behandlungsmaschine erfolgt in bekannter Weise entweder durch Einführen eines Keiles zwischen das Schleppband und den vorlaufenden Rand der Klammer 1 etwa längs der Mittellinie des Schleppbandes oder durch starkes Zusammendrücken der Schleppbandränder unter gleichzeitiger Abhebebewegung.The clip 1 is ejected from the drag belt 2 after the passage through the treatment machine has been carried out in a known manner either by inserting a wedge between the drag belt and the leading edge of the clip 1 approximately along the center line of the drag belt or by strongly compressing the edges of the drag belt with simultaneous lifting movement.

Die Vorsprünge können außer einer Dreiecks- oder Rechtecksform selbstverständlich auch Trapez- oder andere ähnliche Formen haben, die ein Einführen der Schleppbandränder in die Aussparung lc zulassen.In addition to a triangular or rectangular shape, the projections can of course also have trapezoidal or other similar shapes which allow the edges of the drag tape to be inserted into the recess 1c.

Die Länge der Aussparung lc in Laufrichtung kann auch etwas größer oder kleiner als die Schleppbandbreite sein. Bei zu großer Länge stört jedoch die verhältnismäßig steife Klammer bei der Umlenkung um die Schleppbandrollen, weährend die zu kleine Länge bei gleicher Schleppkraft zu hohen Druck auf die Bandkanten bewirkt.The length of the recess 1c in the running direction can also be somewhat larger or smaller than the drag belt width. If the length is too long, however, the relatively stiff clamp interferes with the deflection around the drag belt rollers, while the too small length with the same drag force causes excessive pressure on the belt edges.

Claims (10)

1. Vorrichtung zum Transportieren von bandförmigem Material, insbesondere Fotopapier, durch eine Behandlungsmaschine mittels eines durch die Maschine geführten Schleppbandes, an dem der Anfang des Materialbandes mittels einer Klammer befestigbar ist, wobei die Klammer den Schleppbandrand seitlich umgreifende Mittel zur lösbaren Befestigung auf dem elastischen Schleppband unter Querverformung und einen über das Schleppband seitlich hinausragenden Arm zur Befestigung des Materialbandes aufweist, dadurch gekennzeichnet, daß die Mittel zur lösbaren Befestigung auf dem Schleppband als Aussparung (lc) in der Klammer ausgebildet sind, die in Länge und Breite etwa der Breite des Schleppbandes (2) entspricht und in welche Aussparung (1c) quer zur Längsrichtung des Schleppbandes (2) in der befestigten Stellung die Schleppbandränder übergreifende Vorsprünge (1d) ragen.1. Device for transporting tape-shaped material, in particular photo paper, through a treatment machine by means of a drag belt guided through the machine, to which the beginning of the material tape can be fastened by means of a clip, the clip encompassing the drag tape edge laterally encompassing means for releasable fastening on the elastic drag tape with transverse deformation and an arm protruding laterally beyond the towing band for fastening the material band, characterized in that the means for releasable fastening on the towing band are designed as a recess (lc) in the clamp which are approximately the same in length and width as the width of the towing band ( 2) and into which recess (1c) project transversely to the longitudinal direction of the drag belt (2) in the fastened position the projections (1d) overlapping the drag belt edges. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Klammer (1) einstückig hergestellt ist und eine ebene Form aufweist.2. Device according to claim 1, characterized in that the clip (1) is made in one piece and has a flat shape. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Breite der Aussparung (lc) geringfügig kleiner, insbesondere um zwei Prozent kleiner ist als die Schleppbandbreite.3. Device according to claim 1 or 2, characterized in that the width of the recess (lc) is slightly smaller, in particular two percent smaller than the towing bandwidth. 4. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vorsprünge (ld) eine geringere Länge in Bandlängsrichtung aufweisen als die Aussparung (lc), insbesondere nur eine Länge von vier Fünftel der Länge der Aussparung (lc).4. Apparatus according to claim 1 or 2, characterized in that the projections (ld) have a shorter length in the longitudinal direction of the tape than the recess (lc), in particular only a length of four fifths the length of the recess (lc). 5. Vorrichtung nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß die Vorsprünge (ld; ld') eine stark abgeschrägte oder verrundete Form, insbesondere in der Klammerebene die Form eines gleichschenkeligen Dreiecks mit Basis in Bandlängsrichtung aufweisen.5. Apparatus according to claim 1 or 4, characterized in that the projections (ld; ld ') have a strongly chamfered or rounded shape, in particular in the plane of the bracket, the shape of an isosceles triangle with a base in the longitudinal direction of the tape. 6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Vorsprünge jeweils gleichförmig sind und etwa jeweils um ein Zehntel bis ein Viertel, insbesondere um ein Fünftel der Breite des Schleppbandes (2) in die Aussprung (lc) hineinragen.6. The device according to claim 1, characterized in that the two projections are each uniform and protrude approximately in each case by a tenth to a quarter, in particular by a fifth of the width of the drag band (2) in the recess (lc). 7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Vorsprung auf einer Seite, insbesondere auf der des Armes (la), nur etwa ein Fünftel der Breite der Aussparung (lc), der auf der anderen Seite etwa die Hälfte der Breite der Aussparung (lc), in diese hineinragt und die Klammer von Hand biegbar ist.7. The device according to claim 1, characterized in that the projection on one side, in particular on that of the arm (la), only about a fifth of the width of the recess (lc), on the other side about half the width of the recess (lc), protrudes into it and the clip can be bent by hand. 8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Klammer (1) aus rostfreiem Stahl oder chemikalien- und temperaturbeständigem Kunststoff, insbesondere aus gefülltem Polypropylen, besteht und eine solche Dicke, Breite und Steifigkeit aufweist, daß sie von dem Schleppband (2) nur unwesentlich verformbar ist.8. The device according to claim 1, characterized in that the clip (1) made of stainless steel or chemical and temperature-resistant plastic, in particular filled polypropylene, and has such a thickness, width and rigidity that it from the drag belt (2) is only slightly deformable. 9. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Umrahmung der Aussparung (lc) auf der dem Ansatz des Armes (la) gegenüberliegenden Seite eine Griffmulde (lf) aufweist.9. Device according to one of the preceding claims, characterized in that the framing of the recess (lc) on the opposite side of the arm (la) has a recessed grip (lf). 10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in dem Arm (la) in Klammerlängsrichtung Schlitze (lb) von einer Länge wenigstens entsprechend der Breite des Materialbandes (3) und für die Durchführung des Materialbandes (3) ausreichender Breite ausgeformt sind. Hierzu 2 Blatt Zeichnungen10. The device according to claim 1, characterized in that in the arm (la) in the longitudinal direction of the slots (lb) of a length at least corresponding to the width of the material strip (3) and sufficient for the implementation of the material strip (3) are formed. With this 2 sheets of drawings
EP86113391A 1985-10-08 1986-09-29 Device for conveying web-like material, e.g. photographic paper, through a treating machine Expired EP0218978B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853535852 DE3535852A1 (en) 1985-10-08 1985-10-08 DEVICE FOR TRANSPORTING TAPE-SHAPED MATERIAL, IN PARTICULAR PHOTO PAPER, THROUGH A TREATMENT MACHINE
DE3535852 1985-10-08

Publications (2)

Publication Number Publication Date
EP0218978A1 true EP0218978A1 (en) 1987-04-22
EP0218978B1 EP0218978B1 (en) 1989-09-06

Family

ID=6283035

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Application Number Title Priority Date Filing Date
EP86113391A Expired EP0218978B1 (en) 1985-10-08 1986-09-29 Device for conveying web-like material, e.g. photographic paper, through a treating machine

Country Status (4)

Country Link
US (1) US4773580A (en)
EP (1) EP0218978B1 (en)
JP (1) JPS6291954A (en)
DE (1) DE3535852A1 (en)

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EP0548444A1 (en) * 1991-12-23 1993-06-30 FIN 5 S.p.A. Machine for winding webbs on reels and reel therefor
EP1060880A2 (en) * 1999-06-17 2000-12-20 Heidelberger Druckmaschinen Aktiengesellschaft Threading device for a rotary printing machine.
CN106743883A (en) * 2017-01-12 2017-05-31 深圳弘美数码纺织技术有限公司 Paper conveyer and paper feeding equipment

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DE3709412A1 (en) * 1987-03-21 1988-09-29 Agfa Gevaert Ag METHOD AND DEVICE FOR ATTACHING A CLAMP TO A TOWING BELT
DE3833469A1 (en) * 1988-10-01 1990-04-05 Agfa Gevaert Ag Method and device for fastening the beginning of a tape (band) of photographic material to a clamp
DE4026616A1 (en) * 1990-08-23 1992-02-27 Agfa Gevaert Ag DEVICE FOR CLEANING OR DEHUMIDIFICATING TAPE-SHAPED MATERIAL
DE4030060C2 (en) * 1990-09-22 1999-09-16 Agfa Gevaert Ag Device for cleaning or dehumidifying band-shaped material
DE4036015A1 (en) * 1990-11-13 1992-05-14 Wolfgang Koehler METHOD AND DEVICE FOR ATTACHING BRACKETS TO A TAPE
DE4204440C2 (en) * 1992-02-14 1997-08-14 Agfa Gevaert Ag Device for removing treatment liquid from the back of a photographic, band-shaped support
GB9219664D0 (en) * 1992-09-17 1992-10-28 Kodak Ltd Photographic transport mechanisms
DE9313212U1 (en) * 1993-09-02 1993-11-04 Stork Contiweb Device for carrying out an elongated web of material through a limited space in a system
US8525925B2 (en) * 2008-12-29 2013-09-03 Red.Com, Inc. Modular digital camera

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GB1183416A (en) * 1967-08-18 1970-03-04 Pentacon Dresden Veb Conveyor Insert for Developing Apparatus for Photographic Film Base
DD154287A1 (en) * 1980-11-12 1982-03-10 Guenter Piechatzek DEVICE FOR FEEDING MATERIAL RAILS IN MACHINING MACHINES

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Publication number Priority date Publication date Assignee Title
EP0548444A1 (en) * 1991-12-23 1993-06-30 FIN 5 S.p.A. Machine for winding webbs on reels and reel therefor
EP1060880A2 (en) * 1999-06-17 2000-12-20 Heidelberger Druckmaschinen Aktiengesellschaft Threading device for a rotary printing machine.
EP1060880A3 (en) * 1999-06-17 2001-09-26 Heidelberger Druckmaschinen Aktiengesellschaft Threading device for a rotary printing machine.
CN106743883A (en) * 2017-01-12 2017-05-31 深圳弘美数码纺织技术有限公司 Paper conveyer and paper feeding equipment
CN106743883B (en) * 2017-01-12 2019-12-13 深圳弘美数码纺织技术有限公司 Paper head conveying device and paper feeding equipment

Also Published As

Publication number Publication date
JPS6291954A (en) 1987-04-27
DE3535852A1 (en) 1987-04-16
US4773580A (en) 1988-09-27
EP0218978B1 (en) 1989-09-06
DE3535852C2 (en) 1987-11-05

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