EP0368771B1 - Verfahren und Einrichtung zur Dekoration eines Rohrs - Google Patents

Verfahren und Einrichtung zur Dekoration eines Rohrs Download PDF

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Publication number
EP0368771B1
EP0368771B1 EP89420428A EP89420428A EP0368771B1 EP 0368771 B1 EP0368771 B1 EP 0368771B1 EP 89420428 A EP89420428 A EP 89420428A EP 89420428 A EP89420428 A EP 89420428A EP 0368771 B1 EP0368771 B1 EP 0368771B1
Authority
EP
European Patent Office
Prior art keywords
jaws
tube
pressure
strip
distribution element
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
EP89420428A
Other languages
English (en)
French (fr)
Other versions
EP0368771A1 (de
Inventor
Gérard Biboud
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.)
LIBERIA Ets
Original Assignee
LIBERIA Ets
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Filing date
Publication date
Application filed by LIBERIA Ets filed Critical LIBERIA Ets
Priority to AT89420428T priority Critical patent/ATE75664T1/de
Publication of EP0368771A1 publication Critical patent/EP0368771A1/de
Application granted granted Critical
Publication of EP0368771B1 publication Critical patent/EP0368771B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus

Definitions

  • the present invention relates to a method of decorating a tube and a device for its implementation.
  • the most common solution consists in carrying out a homogeneous painting on the tube and, possibly, in affixing adhesive decorations covering only part of the surface of the tube.
  • the quality of the decoration obtained is not perfect, and the adhesive elements peel off and reveal traces of particularly unsightly glue.
  • the present invention aims to overcome this gap.
  • the method which it relates to consists in applying, on the tube, a flexible support carrying the decoration to be transferred, in applying around the decoration support a heat distributing element, in applying around the heat distributing element at least one pressure distributing element, and finally to exert a pressure directed from the outside towards the inside on the pressure distributing element.
  • Heat distributors and pressure distributors make it possible to ensure homogeneity both of the heating and of the pressure, although the pressure is exerted by discontinuous elements, namely several heating jaws displaced radially and which can therefore exert a homogeneous distribution of the pressure without a solution of continuity.
  • a device for implementing this method comprises jaws of profile complementary to the exterior surface of the tube, the respective indentations of which are coated with a layer of deformable material, but which transmits pressure, a strip of heat-distributing material being provided. both ends of which are arranged laterally to the device on the same side of the jaws.
  • the layer of pressure distributing material is thicker at the junction lines between two jaws than at the intermediate zones between two junction lines.
  • the pressure distributor element is made of silicone.
  • the strip of heat distributing material is made of polytetrafluoroethylene.
  • the jaws are two in number, and are movable on the same axis to carry out the opening and closing movements
  • the two edges of the strip ensuring the distribution of heat are fixed to two elastically movable elements in a direction parallel to the direction of the jaws, this strip passing behind two rollers of axes parallel to the axis of the tube and each secured to one of the jaws, the two rollers being mounted on the two jaws, so that in the closed position thereof, the two rollers are in contact with each other and that their contact line is contained in the joint plane of the two jaws.
  • the tube In practice, the jaws being in the open position, the tube is brought in laterally, on the side of the heat distribution strip. During this movement, the strip is entrained by the tube and partially encloses the latter. The tube being deposited in the imprint of one of the jaws, it is proceeded to the closing of these, movement during which the two rollers guiding the heat distribution strip come into contact with one another. The tube is therefore perfectly sandwiched between the jaws, and surrounded by the heat distribution strip and the pressure distribution element which ensures homogenization of the pressure exerted by the jaws.
  • the bicycle 2, shown in Figure 1 includes a frame whose tubes have been decorated by a decor transfer process by sublimation. Before the decoration is made, the frame is painted in a homogeneous manner using a color harmonizing with the colors of the desired decoration, and the application of a colorless varnish.
  • This device comprises two heating jaws 3 and 4 each comprising a semi-cylindrical imprint, respectively, 5 and 6 with the diameter of the tube to be decorated.
  • the bottom of each imprint is covered by a half-shell 7 made of silicone, the thickness of which, in the central part, is of the order of 2 mm and the thickness of which at the edges is increased by the order of 1 at 2 tenths of a mm.
  • the device according to the invention also comprises a heat distributing strip 9 whose edges 10 and 12, parallel to the 'axis of the tube to be decorated, are fixed on elastic elements 13 and 14.
  • the two edges 10 and 12 are arranged laterally to the jaws 3 and 4, on the same side thereof.
  • the strip 9 passes in contact with two rollers 15 and 16 secured respectively to the jaws 3 and 4, and fixed thereon so as to come into contact with each other when the jaws are in the closed position, the line of contact located in the joint plane of the jaws.
  • the device being at rest in the state shown in FIG. 2, there is a procedure for producing the decoration of a tube 17 by coating it with the support 18 of a decoration and then by brought from the latter laterally on the side of the strip 9.
  • the strip 9 is driven by the tube 17 and partially encloses the latter.
  • the tube being deposited in the cavity of one of the jaws, for example in the cavity 6 of the jaw 4, the two jaws are closed.
  • This technique makes it possible to perfectly carry out very varied decorations of a tube by sublimation transfer, thanks to the excellent distribution of the temperature, on the one hand, and of the pressure on the other hand, which is obtained despite the exercise pressure using elements of discontinuous structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (6)

1. Verfahren zur Dekoration eines Rohres, dadurch gekennzeichnet, daß es darin besteht, auf das Rohr (17) einen biegsamen, das zu übertragende Dekor tragenden Träger (18) aufzubringen, um den Dekorträger ein Wärmeverteilelement (9) herumzubringen und um das Wärmeverteilelement mindestens ein Druckverteilelement (7) herumzubringen und schließlich einen von außen nach innen auf das Druckverteilelement gerichteten Druck auszuüben.
2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß sie Backen (3, 4) mit einem Profil komplementär zur Außenfläche des Rohres aufweist, deren jeweilige Aufnahmen (5, 6) mit einer Schicht (7) aus einem deformierbaren, aber druckübertragenden Material verkleidet sind, wobei ein Band (9) aus einem Wärmeverteilmaterial vorgesehen ist, dessen beide Enden (10, 12) seitlich an der Vorrichtung, auf der gleichen Seite wie die Backen, angeordnet sind.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Schicht aus dem Druckverteilmaterial (7) im Niveau der Verbindungslinien zwischen den beiden Backen (3, 4) dicker ist als im Niveau der Zwischenzonen zwischen zwei Verbindungslinien.
4. Vorrichtung nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, daß das Druckverteilelement (7) aus Silikon besteht.
5. Vorrichtung nach einem der Ansprüche 2 - 4, dadurch gekennzeichnet, daß das Band (9) aus Wärmeverteilmaterial aus Polytetrafluorethylen besteht.
6. Vorrichtung nach einem der Ansprüche 2 - 5, dadurch gekennzeichnet, daß in dem Ausmaß, in dem die Zahl der Backen (3, 4) 2 ist und sie auf einer gleichen Achse verlagerbar sind, um die Öffnungs- und Schließbewegungen zu verwirklichen, die beiden Ränder (10, 12) des die Wärmeverteilung gewährleistenden Bandes an zwei Elementen (13, 14) befestigt sind, die elastisch in einer Richtung parallel zur Richtung der Backen verlagerbar sind, wobei dieses Band (9) hinter zwei Rollen (15, 16) läuft, deren Achsen parallel zur Achse des Rohres liegen und die jede fest mit einer der Backen verbunden sind, wobei die beiden Rollen (15, 16) auf den beiden Backen (3, 4) derart montiert sind, daß in deren Schließstellung die beiden Rollen in Kontakt miteinander stehen und daß ihre Kontaktlinie in der Verbindungsebene der beiden Backen verläuft
EP89420428A 1988-11-07 1989-11-06 Verfahren und Einrichtung zur Dekoration eines Rohrs Expired - Lifetime EP0368771B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420428T ATE75664T1 (de) 1988-11-07 1989-11-06 Verfahren und einrichtung zur dekoration eines rohrs.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815781 1988-11-07
FR8815781A FR2638682B1 (fr) 1988-11-07 1988-11-07 Procede de decoration d'un tube et dispositif pour sa mise en oeuvre

Publications (2)

Publication Number Publication Date
EP0368771A1 EP0368771A1 (de) 1990-05-16
EP0368771B1 true EP0368771B1 (de) 1992-05-06

Family

ID=9372495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420428A Expired - Lifetime EP0368771B1 (de) 1988-11-07 1989-11-06 Verfahren und Einrichtung zur Dekoration eines Rohrs

Country Status (5)

Country Link
EP (1) EP0368771B1 (de)
AT (1) ATE75664T1 (de)
DE (1) DE68901447D1 (de)
ES (1) ES2030998T3 (de)
FR (1) FR2638682B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA986563B (en) * 1998-07-23 1998-10-28 Lin Juen Chyr Method for coloring a bicycle part

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608480A (en) * 1970-02-17 1971-09-28 Patent Dev Corp Hot stamping and heat transfer press for rollable objects
US3910183A (en) * 1974-02-28 1975-10-07 Parke Davis & Co Apparatus for offset printing capsules
FR2273671A1 (fr) * 1974-06-07 1976-01-02 Whiley Ltd George Appareil de transfert
US4052935A (en) * 1975-11-12 1977-10-11 Minnesota Mining And Manufacturing Company Printing device
GB2120169B (en) * 1982-05-12 1985-10-23 David Durand Method of applying a dye image to a plastic member and the image bearing member thereby formed
DE3421029C2 (de) * 1984-06-06 1986-04-24 Walter Steinhausen Mathis Verfahren und Vorrichtung zum trockenen Bedrucken eines Werkstückes unter Verwendung einer Heißprägefolie
DE3583853D1 (de) * 1984-11-15 1991-09-26 Ajinomoto Kk Transferdruck.

Also Published As

Publication number Publication date
ATE75664T1 (de) 1992-05-15
DE68901447D1 (de) 1992-06-11
FR2638682A1 (fr) 1990-05-11
ES2030998T3 (es) 1992-11-16
FR2638682B1 (fr) 1990-12-14
EP0368771A1 (de) 1990-05-16

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