EP0015268A1 - Methode et appareil d'agglutination de feuilles - Google Patents

Methode et appareil d'agglutination de feuilles

Info

Publication number
EP0015268A1
EP0015268A1 EP19790900396 EP79900396A EP0015268A1 EP 0015268 A1 EP0015268 A1 EP 0015268A1 EP 19790900396 EP19790900396 EP 19790900396 EP 79900396 A EP79900396 A EP 79900396A EP 0015268 A1 EP0015268 A1 EP 0015268A1
Authority
EP
European Patent Office
Prior art keywords
sheets
adhesive
tongues
stack
punching mechanism
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.)
Withdrawn
Application number
EP19790900396
Other languages
German (de)
English (en)
Inventor
Ole Gram
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.)
OLE GRAM AS
Original Assignee
OLE GRAM AS
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 OLE GRAM AS filed Critical OLE GRAM AS
Publication of EP0015268A1 publication Critical patent/EP0015268A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C9/00—Applying glue or adhesive peculiar to bookbinding

Definitions

  • the invention relates to a method for the agglutination of sheets, more particularly of paper, but also of materials such as cardboard, textiles, foils, or the like, irrespective of vhether the said sheets are of the same material or of different materials, and an apparatus for the embodiment of the method.
  • the agglutination of superposed sheets can be improved by fanni: the sheets before subjecting them to adhesive. This method is known from the specification of British Patent No 681,858.
  • French Patent No 1,016,027 states a method for agglutinating sheets of paper by which fairly long tabs in the shape of narro tongues are punched up out of a line in the sheets and then ben back completely and subjected to adhesive whereafter said tongu are unbent again and made to combine into an interlace which is secured to the outermost surface of the stack.
  • This agglutinati of interlaced tongues serves to interconnect outside the actual stack of sheets not only the individual sheets of the stack but also the stack and similar consecutively arranged stacks of fol ed paper, for example for bookbinding purposes.
  • the problem underlying the present invention is to provide a me thod which permits, better than any hitherto known method a ra pid, economical and tear-resistant agglutination, especially in the case of sheets that have to be folded after the interconnection.
  • the method according to the invention provides strong and tearproof agglutinations. Furthermore, it can be automated and is economical in terms of consumption of time and adhesive.
  • the present invention makes it possible to agglutinate even very large numbers of sheets in one operation, since the punched-out tongues can be very short and yet permit an effective agglutination.
  • the fact that the final hardening or setting of the adhesive takes place inside the stack with the tongues returned to their original positions and with adhesive deposited between the slits of all the sheets provides a strong reinforcement of the hole where the agglutination takes place, preventing that any of the sheets become detached or can be torn put very easily.
  • agglutination of sheets of a wide variety of materials becomes a new alter native to methods of interconnection by means of staples, sewing, welding, etc., and opens up the possibility of new industrial applications for example agglutination of textiles.
  • figure 1 is a perspective view of one embodiment of an apparatus according to the invention
  • figure 2 shows examples of the shape ⁇ of the punched-out slits
  • figure 3 is a longitudinal section through a combined punching and adhesive-applying mechanism
  • figure 4 shows another embodiment of the adhesive-applying mechanism
  • figure 5 shows yet another proposed embodiment of same
  • Figure 1 shows the lower part of two suitably interconnected cobined punching and adhesive-applying mechanisms in a position where they have been moved vertically down towards and now just touch a horizontally positioned stack of paper sheets 2 resting on a support 3.
  • Other directions of movement and other angles between the surface of the stack and the direction in which the punch is introduced are also possible, but an angle of approximately 90 seems preferable.
  • the dot-and-dash line h on the she of paper suggests a line along which the stack of sheets may be folded after the agglutination.
  • the agglutination can also adva: tageously be performed along an outer edge 5 of the sheets.
  • the solid lines in figure 2 show a number of many possible shap of the slits 9 punched out in the sheets, whereas the dot-and dash lines show how the tongues 10 presented by the punch are bent down by the punching and adhesive-applying mechanism.
  • the hatched areas represent the hole produced in the sheets by the punching operation. It is apparent that by choosing for example a serrated or corrugated slit it is possible to adjust the leng of the strips of adhesive so that even in a limited area fairly long strips can be obtained and thus adapted to the type of she to be agglutinated.
  • the punched-out tongues 10 need only be of very limited lenght, as will be apparent from figure 3. since the width of the strip of adhesive 11 deposited on the underlying sheets is determined by the degree of displacement of the bent-down tongues. Beyond a very narrow limit depending on such factors as the thickness of the sheets and on the angle of bending increasing the length of the tongues does not increase the displacement. Furthermore, relatively short tongues are advantageous in that they are capable of being more rapidly and conveniently returned to their original positions after the adhesive has been applied to them. Returning of the tongues can for example be effected by means of the two spring-loaded plates 12 situated in the support 3. However, the individual tongues need not be returned to their exact original positions. A certain degree of overlapping might even be advantageous.
  • Such overlapping can be aided by letting the tongues be of a suitable shape, for example S-shaped, cf the last example shown in figure 2.
  • a suitable shape for example S-shaped, cf the last example shown in figure 2.
  • reference number 13 designates the punching tool, which is attached to a suitably hollow shaft 6 provided with channels 14 through which melted, dissolved or dispersed adhesive can be fed evenly to a pad 15.
  • the pad 15 can be made of felt, foam rubber or any other porous material and can have a cross section corresponding to the hatched areas in figure 2 which represent the holes formed in the stack of paper sheets and to whose sides the adhesive is applied.
  • bent-down tongues 10 can for example be effected by means of two underlying spring loaded . plates 12, the contiguous edges of which can advantageously be adapted to the shape of the slit and thus to that of the tongues.
  • the spring-loaded plates 12 are pressed down to positions which form an angle approaching 90o with their ori g ⁇ nal positions.
  • the springs l6 cause the spring-loaded plates 12 to return to their origin; position at the same time forcing the entire column of tongues i* wards to take up positions in the vicinity of their original po sitions in the stack where the final setting or hardening of the adhesive takes place.
  • the pressure on the sheets can be increased by letting the spring- loaded plates 12, which can advantageously be provided with a coating of an adhesive-repellent substance for example teflon b ⁇ controlled, instead of by the springs 16, by a special clamping mechanism, which advantageously can be coordinated with- the mech. nism for applying to the tacky areas on the uppermost sheet some means for inhibiting the adhesive effect, for example at least one piece of thin cardboard or plastics film, a powder or the like.
  • Figure 4 shows another possible embodiment of the adhesive-appl? ing mechanism, in which the porous pad 15 is replaced by a kind of brush. Approximately at right angles to the direction of operation are mounted a number of fairly stiff hairs or the like 1' The upper part of figure 4 shows an alternative to the brush, i_ the form of short, small-bore tubes 18 allowing the passage of adhesive.
  • This form of the invention may provide an even better spread of the adhesive between the individual sheets of the sta ⁇ and furthermore the subsequent retraction of the adhesive- applying mechanism will aid the returning of the bent-down tongues.
  • the abovementioned adhesive inhibitor of cardboard may be needed in particular for the uppermost sheet, which is the first to be touched by the adhesive-applying mechanism, adhesive being applie to the entire area indicated in figure 2 by hatching.
  • a similar passivation may be required for the adhesive applied to the nethermost sheet of the stack, for example in the form of a powder such as talc, which can prevent any unde ⁇ ired adhesion to other surfaces.
  • a kind of simple passivation can be obtained by folding the sheets immediately after the agglutination for example along the dot-and-dash line 4 in figure 1.
  • a further advantage gained by passivating at once any inappropriately adhesive surfaces is that it permits the use of more slow-drying adhesive ⁇ , with for example water as dis ⁇ olving or dispersing agent and thus less harmful to the working environment.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Making Paper Articles (AREA)

Abstract

Methode d'agglutination d'une pluralite de feuilles (2), plus particulierement des feuilles de papier, empilees. Un mecanisme de poinconnage (1) possede un canal, au travers duquel une colle fondue ou dissoute peut etre introduite, et decoupe dans la pile un trou de coulee (9). Cet orifice a une forme en U; les incisions dentelees ou striees presentent a chaque feuille une ou plusieurs langues (10) qui sont pliees par rapport a leur position normale a cause du mouvement descendant du mecanisme de poinconnage, en meme temps que la colle est introduite dans le trou. Le retrait du mecanisme de poinconnage provoque le repli des langues qui reprennent leur position d'origine et effectue l'introduction de la colle entre les feuilles individuelles et ainsi que leur agglutination. Appareil pour mettre en application la methode de l'invention. L'appareil comprend un support (3) pour tenir une pile de feuilles (2) et un mecanisme a couper (1) dont une face extreme (13) possede une section angulaire ou striee. Ledit mecanisme de coupe possede un arbre creux (6) et des moyens (14, 15, 17, 18, 19) pour deposer de la colle sur les langues poinconnees. En outre, l'appareil possede des moyens (12, 16) pour remettre les langues pliees vers le bas dans leur position d'origine, apres application de la colle sur les langues et retrait du mecanisme de poinconnage.
EP19790900396 1978-03-28 1979-10-26 Methode et appareil d'agglutination de feuilles Withdrawn EP0015268A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK1338/78 1978-03-28
DK133878A DK143388C (da) 1978-03-28 1978-03-28 Fremgangsmaade til sammenklaebning af ark samt apparat til udoevelse af fremgangsmaaden

Publications (1)

Publication Number Publication Date
EP0015268A1 true EP0015268A1 (fr) 1980-09-17

Family

ID=8103742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790900396 Withdrawn EP0015268A1 (fr) 1978-03-28 1979-10-26 Methode et appareil d'agglutination de feuilles

Country Status (4)

Country Link
EP (1) EP0015268A1 (fr)
JP (1) JPS55500332A (fr)
DK (1) DK143388C (fr)
WO (1) WO1979000839A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715758A (en) * 1986-07-18 1987-12-29 Stobb, Inc. Method and apparatus for attaching sheets together
CA2011479C (fr) * 1989-03-30 1999-03-30 Werner Honegger Procede de reliure de feuilles de papier
US5961758A (en) * 1989-03-30 1999-10-05 Ferag Ag Process for manufacturing booklets
DE59402484D1 (de) * 1993-06-11 1997-05-28 Ferag Ag Verfahren und Vorrichtung zum Verbinden der Bogen eines mehrblättrigen Druckereiproduktes
DE59403252D1 (de) * 1994-01-10 1997-08-07 Ferag Ag Vorrichtung zum Klebheften von Druckereierzeugnissen
EP0664226B1 (fr) * 1994-01-19 1997-03-12 Ferag AG Méthode et dispositif pour la reliure par adhesif de feuilles d'un produit imprimé plié constitué de plusieurs feuilles
US6797365B2 (en) 2002-04-08 2004-09-28 Kimberly-Clark Worldwide, Inc. Laminate having differential bond strengths and absorbent article made therefrom
ITTO20120831A1 (it) * 2012-09-25 2014-03-26 Legaton S R L Metodo e macchina per la formazione di un assieme legato di fogli di carta

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1016027A (fr) * 1949-04-11 1952-10-30 Procédé et dispositif d'assemblage de feuilles de papier
GB681858A (en) * 1949-11-14 1952-10-29 Hans Ehlermann K G Dipl Ing Apparatus for the simultaneous fanning and pasting of sheets for book-binding without wire sewing or the like
DK78574C (da) * 1952-10-10 1954-12-13 Erik Finn Moeller Fremgangsmåde til sammenføjning af papirark.
DE1946249C3 (de) * 1969-09-12 1973-09-20 Textilmaschinenfabrik Schwenningen Gmbh, 7220 Schwenningen Vorrichtung zum Verbinden von Blattern zu Formularsätzen bzw Blocken
DE2029864C3 (de) * 1970-06-18 1973-01-04 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Einrichtung zum Herstellen von Verbindungsstellen übereinanderliegender Bahnen, insbesondere Formularbahnen
DE2055127A1 (de) * 1970-11-10 1972-05-31 Cast, Adolf, Dipl.-Ing., 7311 Oberlenningen Klebegerät und -verfahren
GB1559684A (en) * 1976-01-21 1980-01-23 Irvin Bros Ltd Blocks of sheet material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO7900839A1 *

Also Published As

Publication number Publication date
JPS55500332A (fr) 1980-06-12
DK143388C (da) 1981-12-21
WO1979000839A1 (fr) 1979-10-18
DK143388B (da) 1981-08-17
DK133878A (da) 1979-09-29

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Inventor name: GRAM, OLE