CH651795A5 - Pack for piece goods, process for producing the pack and tubular-bag machine for carrying out the process - Google Patents

Pack for piece goods, process for producing the pack and tubular-bag machine for carrying out the process Download PDF

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Publication number
CH651795A5
CH651795A5 CH5072/81A CH507281A CH651795A5 CH 651795 A5 CH651795 A5 CH 651795A5 CH 5072/81 A CH5072/81 A CH 5072/81A CH 507281 A CH507281 A CH 507281A CH 651795 A5 CH651795 A5 CH 651795A5
Authority
CH
Switzerland
Prior art keywords
incisions
seam
pack
fin seam
longitudinal
Prior art date
Application number
CH5072/81A
Other languages
German (de)
Inventor
Bruno Schelling
Original Assignee
Sig Schweiz Industrieges
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 Sig Schweiz Industrieges filed Critical Sig Schweiz Industrieges
Priority to CH5072/81A priority Critical patent/CH651795A5/en
Publication of CH651795A5 publication Critical patent/CH651795A5/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/306—Applying a mark during joining
    • B29C66/3062—Applying a mark during joining in the form of letters or numbers
    • B29C66/30621—Applying a mark during joining in the form of letters or numbers in the form of letters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

This pack (V) has, in its longitudinal fin seam (29), a plurality of incisions (4-7) from the edge of the longitudinal fin seam into a middle region of the latter. Marking incisions (8-11), by means of which the material is only partially severed, serve for bending a V-shaped part of the longitudinal fin seam (29). The distances between the incisions are identical to one another and are in the range of between 20% and 50% relative to the length of the pack. This ensures that, without any additional control by means of corotating knives, at least one of the incisions is arranged in the region of the packaged article. Because no control is necessary, any tubular-bag machine designed for making a longitudinal fin seam (29) can be converted without a high outlay and without any loss of performance. <IMAGE>

Description

       

  
 

**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **.

 



   PATENTANSPRÜCHE
1. Packung für Stückgüter aus einem siegelfähigen Material, die eine   Längsfiossennaht    und zwei Querflossennähte aufweist und mit einer Öffnungshilfe versehen ist, dadurch gekennzeichnet, dass die Längsflossennaht (29) wenigstens zwei von deren Aussenrand ausgehende und sämtliche Schichten dieser Naht durchtrennende Haupteinschnitte   (4-7)    aufweist.



   2. Packung nach Patentanspruch 2, dadurch gekennzeichnet, dass der Abstand zwischen zwei Haupteinschnitten (4-7) ein kontantes Mass hat.



   3. Packung nach Patentanspruch 2, dadurch gekennzeichnet, dass das Mass 20% bis 50% der Packungslänge ist.



   4. Packung nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, dass jeder Haupteinschnitt (4-7) mit einer Markierung versehen ist, um die Stellen erkenntlich zu machen.



   5. Packung nach Patentanspruch 4, dadurch gekennzeichnet, dass die Markierung ein die   Längsfiossennaht    (29) höchstens teilweise durchtrennender zweiter Einschnitt   (8-11)    ist.



   6. Packung nach Patentanspruch 5, dadurch gekennzeichnet, dass der zweite Einschnitt (8-11) V-förmig zum zugehörigen Haupteinschnitt (4-7) angeordnet ist und aus mehreren die Flossennaht (29) durchtrennenden Schnitten besteht.



   7. Packung nach Patentanspruch 4, dadurch gekennzeichnet, dass die Markierung   ( & 1)    eine in die   Längsfios-    sennaht (29) eingeprägte Linie ist, um durch Veränderung der Lage einer Partie der Längsflossennaht eine Veränderung der Lichtreflexion zu bewirken.



   8. Verfahren zur Herstellung der Packung nach Patentanspruch 1, dadurch gekennzeichnet, dass eine Materialbahn (21) um die in einer stetigen Reihe zugeführten Stückgüter (G) herum zu einem Schlauch (23) geformt und dieser durch eine   Längsfiossennaht    (29) verschlossen wird, dass mit dem Schlauch   mitlaufend    äquidistante Haupteinschnitte   (P7)    in die   Längsfiossennaht    (29) eingeschnitten werden und dass mit Quersiegelmitteln (34) die einzelnen Verpackungen vollständig verschlossen und voneinander getrennt werden.



   9. Verfahren nach Patentanspruch 8, dadurch gekennzeichnet, dass die Einschnitte (4-8) durch mit konstanter Drehzahl rotierende Messer in der Siegelstation (28) für die Herstellung der Längssiegelnaht (29) eingeschnitten werden.



   19. Schlauchbeutelmaschine zur Durchführung des Verfahrens nach Patentanspruch 8, dadurch gekennzeichnet, dass in der Siegelstation (28) ein mit der translatorischen Geschwindigkeit der Schlauchbahn (23) umlaufendesRollenpaar (26, 26a) mit Einstichmessern (42) zur Bildung von wenigstens der Haupteinschnitte (4-7) versehen ist.



   11. Schlauchbeutelmaschine nach Patentanspruch 10, dadurch gekennzeichnet, dass das Rollenpaar (26, 26a) mit den Einstichmessern (42) stromabwärts der Siegelmittel (25, 25a) angeordnet ist.



   12. Schlauchbeutelmaschine nach Patentanspruch 11, dadurch gekennzeichnet, dass mehrere Einstichmesser (42) gleichmässig auf dem Umfang der einen Rolle (26a) des Rollenpaares (26, 26a) verteilt angeordnet sind.



   13. Schlauchbeutelmaschine nach Patentanspruch 12, dadurch gekennzeichnet, dass die Gegenrolle (26) zur Rolle (26a) mit den Einstichmessern (42) mit Gegenhaltemitteln (45) versehen ist.



   14. Schlauchbeutelmaschine nach Patentanspruch 13, dadurch gekennzeichnet, dass die Rollen (26, 26a) des Rollenpaares mit den Einstichmessern (42) und den Gegenhaltemitteln (45) zusammen im Gleichlauf angetrieben sind.



   15. Schlauchbeutelmaschine nach Patentanspruch 14, dadurch gekennzeichnet, dass die Einstichmesser (42) V-förmig angeordnete Klingen (43, 44) aufweisen, von denen die eine Klinge (43) eine durchgehende Schneide (47) von der Rollenaussenwand bis wenigstens angenähert zur Mittelebene der Rolle und die andere Klinge (44) mehrere diskrete Schneiden (48) im Abstand voneinander aufweisen.



   Die vorliegende Erfindung betrifft eine Packung für Stückgüter gemäss dem Oberbegriff des unabhängigen Patentanspruchs 1, ferner ein Verfahren zur Herstellung der Packung gemäss dem Oberbegriff des unabhängigen Patentanspruchs 8 und eine Schlauchbeutelmaschine zur Durchführung des Verfahrens nach dem Oberbegriff des unabhängigen Patentanspruchs 10.



   Es ist bekannt, eine schlauchförmige Materialbahn in gleichbleibenden Abständen mit Aufreisshilfen, insbesondere einem Band, zu versehen, dessen Ende über die Längsnaht vorsteht, um ein Griffstück zu bilden. Wenn die Längsnaht als Flossennaht ausgebildet ist, hat sie infolge der beiden miteinander verbundenen Teile der Materialbahn eine höhere Zerreissfestigkeit als der übrige Teil der Packung. Das Einreissen in die Flossennaht wird gemäss der CH-A 558 283 durch wenigstens einen vom Rand der Flossennaht ausgehenden Einschnitt oder zwei ungleich lange Einschnitte neben dem Aufreissstreifen erleichtert.



   In der Verpackungsindustrie ist es bekannt, dass das Befestigen von Aufreissstreifen allein schon eine aufwendige Mehrarbeit im Ablauf der Herstellung einer Packung bedeutet. Das Anbringen von Einschnitten in die Flossennaht an genau festgelegten Stellen bedeutet eine zusätzliche Steuerung, die aber nur bei langsamen Transportgeschwindigkeiten genau arbeiten kann.



   Demgegenüber wurde in der CH-A 610 261 vorgeschlagen, die Querflossennähte mit Einschnitten zu versehen, um die Packung in Längsrichtung aufzureissen. Es hat sich jedoch bei Stückgütern, insbesondere bei Schokoladestangen, gezeigt, dass die bis 6 Lagen aufweisende Quersiegelnaht schwer   aufzureissen    ist und meistens nur eine Ecke des verpackten Gutes freigibt. Dabei wäre es gerade bei Schokolade erwünscht, mit einem einzigen Griff die Stange soweit freizulagen, dass kein zweiter Handgriff nowendig ist, um die Schokolade geniessen zu können und trotzdem einen Teil der Packung als Schutz gegen Verschmutzung der Hände zu haben.



   In der USA-A 3   196067    ist eine Vorrichtung zum Verschliessen einer Packung mittels einer Flossennaht beschrieben. Das Trennmesser ist mit abstehenden Klingen versehen, um die Flossennaht an mehreren Stellen durch Einschnitte zu schwächen. Derartige auf die Länge der Flossennaht verteilte Einschnitte wären für die vorgesehene Anwendung bei einer Packung für Stückgüter erwünscht, jedoch müsste das Einschneiden bei kontinuierlichem Durchlauf des Schlauches geschehen. Sobald jedoch eine gezielte Verteilung der Einschnitte längs einer Flossennaht angestrebt wird, benötigt dies eine Steuerung der Einschneidemittel.



   Es ist deshalb eine Aufgabe der Erfindung, eine Packung für Stückgüter mit einer Aufreisshilfe zu schaffen, durch die das Stückgut auf einem wesentlichen Teil seiner Länge freigelegt werden kann. Die Vorrichtung zur Herstellung der Aufreisshilfe soll billig sein und sich ohne Schwierigkeit an bestehenden Schlauchbeutelmaschinen anbringen lassen und keine Einbusse bezüglich der Leistung bewirken.



   Erfindungsgemäss wird dies durch die Merkmale im kennzeichnenden Teil des unabhängigen Patentanspruchs 1 erreicht. Das Verfahren zur Herstellung der Packung und die Vorrichtung zur Durchführung dieses Verfahrens sind durch die Merkmale im kennzeichnenden Teil des jeweiligen unabhängigen Patentanspruchs 8 und 10 beschrieben.  



   Ein Ausführungsbeispiel der Erfindung wird nachfol



  gend anhand der Zeichnung beschrieben. Es zeigen:
Fig. 1 eine perspektivische Ansicht einer Packung,
Fig. 2 einen Aufriss einer schematisch dargestellten Schlauchbeutelmaschine,
Fig. 3 eine Ansicht der Schlauchbeutelmaschine nach Fig. 2 von unten,
Fig. 4 eine Ansicht eines Rollenpaares in der Siegelstation der Schlauchbeutelmaschine gemäss Fig. 2, 3 in vergrössertem Massstab,
Fig. 5 einen Seitenriss einer Rolle gemäss Fig. 4, und
Fig. 6 eine Schnittansicht eines Messers gemäss der Schnittlinie VI-VI in Fig. 4.



   Die Packung gemäss Fig. 1 für Stückgüter, wie beispielsweise ein Stück Schokolade, weist eine   Längsfiossennaht    29 und zwei Querflossennähte 2, 3 auf. In der Längsflossennaht 29 sind vier Einschnitte 4, 5, 6, 7 und Markierschnitte 8, 9, 10, 11 angebracht. Bei diesem Beispiel ist deutlich dargestellt, dass bei einem Abstand von rund 30% der Länge der Packung vier Einschnitte 4-7 äquidistant auf die Länge der Flossennaht 29 verteilt angeordnet sein können. Durch die Markierschnitte 8-11 wird das Material der Flossennaht 29 gebogen, so dass der geänderte Verlauf der geprägten Siegellinien in der Flossennaht sofort die vier Stellen infolge der veränderten Lichtreflexion erkennen lässt. Der Konsument kann daher die Packung an einem Einschnitt aufreissen.

  Er wird dies bevorzugterweise bei einem der beiden Einschnitte 4 oder 5 tun, weil er damit einen genügend grossen Teil des verpackten Gutes freilegen kann und immer noch Verpak   kungsmaterial    um das Gut verbleibt, um im Fall von Schokolade sich nicht zu beschmutzen. Wenn der Abstand zwischen zwei benachbarten Einschnitten zwischen 20% und 50% der Länge der Packung beträgt, ist gewährleistet, dass immer wenigstens ein Einschnitt im Bereich des verpackten Stückgutes liegt und der Konsument das Stückgut durch eine einfache Aufreissbewegung freilegen kann. Diese gleichmässige Verteilung der Einschnitte erlaubt eine einfache Vorrichtung zu deren Herstellung, ohne Verteuerung der Packung und ohne Veränderung der Leistungsfähigkeit der Maschine.



   Eine Schlauchbeutelmaschine bekannter Bauart ist schematisch in Fig. 2 und 3 dargestellt. Die zu verpackenden Gegenstände G werden auf einer Fördereinrichtung in Form eines endlosen Förderbandes 30 mit einer Umlenkwalze 32 in gleichen Abständen zugeführt und in einen Faltkasten 22 geschoben, in welchem aus einem Materialband 21 von einem Materialvorrat 20 der Verpackungsschlauch 23 gebildet wird. Das Material für# den Schlauch kann Papier oder eine Metallfolie mit einem Überzug aus thermoplastischem, verschweissbaren Material sein, oder es könnte auch eine Folie aus thermoplastischem Material sein.



   Im Faltkasten 22 wird auf an sich bekannte Weise das Verpackungsmaterial schlauchförmig um die zu verpackenden Gegenstände G gelegt, derart, dass auf der Unterseite vorstehende Lappen 29 entstehen. Diese Lappen 29 werden in der Siegelstation 28 von angetriebenen Rollenpaaren 24,
24a; 25, 25a und 26, 26a erfasst und der Schlauch 23 wird damit weitergefördert. Das mittlere Rollenpaar 25, 25a ist beheizt und verschweisst während des Durchlaufens der
Lappen 29, während das erste Rollenpaar 24, 24a vorzugs weise mit einer Friktionsfläche zum besseren Transport des
Schlauches versehen sein kann. Das dritte Rollenpaar 26,
26a ist beispielsweise mit Messern zum Herstellen der Ein schnitte 4-7 versehen.



   Der Schlauch 23 mit den eingeschlossenen Gegenständen
G gelangt dann in die Quersiegelstation 34 zur Herstellung der Querflossennähte. In dieser Quersiegelstation 34 sind zwei segmentförmige beheizte Backen 35 je an einer rotierenden Walze befestigt. Die Walzen werden synchron mit der Schlauchbeutelmaschine angetrieben, derart, dass die Bakken 35 immer in der Mitte zwischen zwei Gegenständen G den Schlauch 23 zusammenpressen und verschweissen. Die eine Backe ist mit einem Messer 36 versehen, um die einzelnen Verpackungen V voneinander zu trennen. Mit einem zweiten Förderband 31, das über eine Umlenkwalze 33 läuft, werden die Verpackungen V weitergefördert.



   Bei dieser Schlauchbeutelmaschine wird das Materialband 21 von oben zugeführt, so dass die   Längsfiossennaht    29 unter den Gegenständen G gebildet wird. Wenn die Gegenstände Gjedoch aus einem wärmeempfindlichen Material, wie Schokolade, bestehen, kann die Materialbahn ebensogut von unten zugeführt werden und die Längsflossennaht 29 mittels einer gleichartigen Siegelstation 28 über dem Schlauch gebildet werden.



   Fig. 4 zeigt das letzte Rollenpaar 26, 26a der Siegelstation 28 in Fig. 2 und 3 in grösserem Massstab, sowie die verschweisste und mit Rillen 29a versehene Flossennaht 29. Wie der Seitenriss der Rolle 26a in Fig. 5 deutlich zeigt, weisen die beiden Rollen 26, 26a umlaufende Rippen 40 und zwischen zwei benachbarten Rippen 40 gebildete Rillen 41 auf.



  Die eine Rolle 26a ist mit Einsätzen 42 mit Klingen 43, 44 und die andere Rolle 26 mit Gegenhalteeinsätzen 45 versehen. Von den Klingen 43, 44 ist die eine Klinge 43 mit einer durchgehenden Schneide und die andere Klinge 44 mit mehreren im Abstand voneinander angeordneten diskreten Schneiden 48 versehen.



   Sowohl die Einsätze 42 mit den Klingen 43, 44 als auch die Gegenhalteeinsätze 45 sind in bekannter Weise in Ausnehmungen der Rollen 26, 26a mittels Schrauben 46 befestigt.



   Beim dargestellten Beispiel entspricht der Abstand zwischen zwei sich folgenden Einschnitten etwa 47% der Länge der Packung, wenn auf dem Umfang der Rolle 26a zwei Messer angeordnet sind. Hätten die Rollen 26, 26a gleiche Durchmesser wie die vorangehenden Rollenpaare in der Siegelstation 28, müssten wenigstens drei Messer 42 und Gegenhalteeinsätze 45 auf dem Umfang der Rollen 26, 26a verteilt angeordnet sein, damit in jedem Fall wenigstens ein Einschnitt in den Bereich des verpackten Stückgutes G fällt. 



  
 

** WARNING ** beginning of DESC field could overlap end of CLMS **.

 



   PATENT CLAIMS
1. Pack for piece goods made of a sealable material, which has a longitudinal fin seam and two transverse fin seams and is provided with an opening aid, characterized in that the longitudinal fin seam (29) has at least two main incisions (4-7 )    having.



   2. Pack according to claim 2, characterized in that the distance between two main incisions (4-7) has a constant dimension.



   3. Package according to claim 2, characterized in that the measure is 20% to 50% of the package length.



   4. Pack according to one of claims 1 to 3, characterized in that each main incision (4-7) is provided with a marking to make the locations recognizable.



   5. Pack according to patent claim 4, characterized in that the marking is a second incision (8-11) which at most partially cuts through the longitudinal fin seam (29).



   6. Pack according to claim 5, characterized in that the second incision (8-11) is V-shaped to the associated main incision (4-7) and consists of several cuts through the fin seam (29).



   7. Package according to claim 4, characterized in that the marking (& 1) is a line embossed in the longitudinal fissure seam (29) in order to bring about a change in the light reflection by changing the position of a portion of the longitudinal fin seam.



   8. A method for producing the package according to claim 1, characterized in that a material web (21) around the piece goods (G) fed in a continuous row is formed into a tube (23) and this is closed by a longitudinal fin seam (29), that with the hose running equidistant main incisions (P7) are cut into the longitudinal fin seam (29) and that the individual packages are completely closed and separated from one another with transverse sealing means (34).



   9. The method according to claim 8, characterized in that the incisions (4-8) are cut by knives rotating at constant speed in the sealing station (28) for the production of the longitudinal sealing seam (29).



   A tubular bag machine for carrying out the method according to claim 8, characterized in that in the sealing station (28) a pair of rollers (26, 26a) rotating at the translational speed of the tubular web (23) with puncturing knives (42) for forming at least the main incisions (4) -7) is provided.



   11. A tubular bag machine according to claim 10, characterized in that the pair of rollers (26, 26a) with the puncturing knives (42) is arranged downstream of the sealing means (25, 25a).



   12. A tubular bag machine according to claim 11, characterized in that several puncture knives (42) are arranged distributed uniformly on the circumference of the one roller (26a) of the roller pair (26, 26a).



   13. A tubular bag machine according to claim 12, characterized in that the counter roller (26) to the roller (26a) with the puncturing knives (42) is provided with counter-holding means (45).



   14. A tubular bag machine according to claim 13, characterized in that the rollers (26, 26a) of the pair of rollers with the puncturing knives (42) and the counter-holding means (45) are driven together in synchronism.



   15. A tubular bag machine according to claim 14, characterized in that the puncture knives (42) have V-shaped blades (43, 44), of which one blade (43) has a continuous cutting edge (47) from the outer roll wall to at least approximately to the central plane the roller and the other blade (44) have a plurality of discrete cutting edges (48) at a distance from one another.



   The present invention relates to a pack for piece goods according to the preamble of independent claim 1, further to a method for producing the pack according to the preamble of independent claim 8 and a tubular bag machine for carrying out the method according to the preamble of independent claim 10.



   It is known to provide a tubular material web at constant intervals with tearing aids, in particular a band, the end of which protrudes beyond the longitudinal seam to form a handle. If the longitudinal seam is designed as a fin seam, it has a higher tensile strength than the rest of the pack due to the two parts of the material web connected to one another. According to CH-A 558 283, tearing into the fin seam is facilitated by at least one incision starting from the edge of the fin seam or two incisions of unequal length next to the tear strip.



   It is known in the packaging industry that the fastening of tear strips alone means an expensive additional work in the course of the production of a package. Making incisions in the fin seam at precisely defined points means additional control, which, however, can only work precisely at slow transport speeds.



   In contrast, it was proposed in CH-A 610 261 to provide the transverse fin seams with incisions in order to tear open the package in the longitudinal direction. However, it has been shown in the case of piece goods, in particular chocolate bars, that the cross-seal seam, which has up to 6 layers, is difficult to tear open and usually only releases one corner of the packaged goods. In the case of chocolate in particular, it would be desirable to expose the bar with a single handle so that no second handle is necessary to enjoy the chocolate and still have part of the package as protection against dirt on the hands.



   In US-A 3 196067 a device for closing a package by means of a fin seam is described. The cutting knife is provided with protruding blades to weaken the fin seam in several places through incisions. Such incisions distributed over the length of the fin seam would be desirable for the intended use in a pack for piece goods, but the incision would have to be made while the tube was continuously running. However, as soon as a targeted distribution of the incisions along a fin seam is sought, this requires control of the incision means.



   It is therefore an object of the invention to provide a package for piece goods with a tear-open aid, through which the piece goods can be exposed over a substantial part of its length. The device for producing the tear-open aid should be inexpensive and can be attached to existing tubular bag machines without difficulty and should not cause any losses in terms of performance.



   According to the invention this is achieved by the features in the characterizing part of independent claim 1. The method for producing the pack and the device for carrying out this method are described by the features in the characterizing part of the respective independent claims 8 and 10.



   An embodiment of the invention will follow



  described with reference to the drawing. Show it:
1 is a perspective view of a pack,
2 is an elevation of a schematically shown tubular bag machine,
3 shows a view of the tubular bag machine according to FIG. 2 from below,
4 shows a view of a pair of rollers in the sealing station of the tubular bag machine according to FIGS. 2, 3 on an enlarged scale,
5 shows a side elevation of a roll according to FIG. 4, and
6 is a sectional view of a knife according to section line VI-VI in FIG. 4.



   The package according to FIG. 1 for piece goods, such as a piece of chocolate, has a longitudinal fin seam 29 and two transverse fin seams 2, 3. Four incisions 4, 5, 6, 7 and marking cuts 8, 9, 10, 11 are made in the longitudinal fin seam 29. In this example it is clearly shown that at a distance of around 30% of the length of the pack, four incisions 4-7 can be distributed equidistantly over the length of the fin seam 29. The material of the fin seam 29 is bent by the marking cuts 8-11, so that the changed course of the embossed sealing lines in the fin seam immediately reveals the four places as a result of the changed light reflection. The consumer can therefore tear open the package at an incision.

  He will preferably do this in one of the two incisions 4 or 5 because he can expose a sufficiently large part of the packaged goods and still packaging material remains around the goods so as not to get dirty in the case of chocolate. If the distance between two adjacent incisions is between 20% and 50% of the length of the pack, it is ensured that there is always at least one incision in the area of the packaged piece goods and the consumer can expose the piece goods by a simple tear-open movement. This uniform distribution of the incisions allows a simple device for their production, without increasing the cost of the pack and without changing the performance of the machine.



   A tubular bag machine of a known type is shown schematically in FIGS. 2 and 3. The objects G to be packaged are fed on a conveyor in the form of an endless conveyor belt 30 with a deflecting roller 32 at equal intervals and pushed into a folding box 22 in which the packaging tube 23 is formed from a material band 21 by a material supply 20. The material for the hose can be paper or a metal foil covered with a thermoplastic, weldable material, or it could also be a foil made of thermoplastic material.



   In the folding box 22, the packaging material is placed in a hose-like manner around the objects G to be packaged in a manner known per se, in such a way that tabs 29 projecting on the underside are formed. These tabs 29 are in the sealing station 28 by driven roller pairs 24,
24a; 25, 25a and 26, 26a detected and the hose 23 is conveyed further. The middle pair of rollers 25, 25a is heated and welded while passing through the
Rag 29, while the first pair of rollers 24, 24a, preferably with a friction surface for better transport of the
Hose can be provided. The third pair of rollers 26,
26a is provided with knives for making the cuts 4-7, for example.



   The hose 23 with the enclosed objects
G then passes into the transverse sealing station 34 for the production of the transverse fin seams. In this cross-sealing station 34, two segment-shaped heated jaws 35 are each attached to a rotating roller. The rollers are driven synchronously with the tubular bag machine, in such a way that the jaws 35 always press and weld the tube 23 in the middle between two objects G. One jaw is provided with a knife 36 in order to separate the individual packages V from one another. With a second conveyor belt 31, which runs over a deflection roller 33, the packs V are conveyed further.



   In this tubular bag machine, the material strip 21 is fed in from above, so that the longitudinal fin seam 29 is formed under the objects G. If, however, the objects G consist of a heat-sensitive material, such as chocolate, the material web can just as well be fed in from below and the longitudinal fin seam 29 can be formed over the tube by means of a similar sealing station 28.



   4 shows the last pair of rolls 26, 26a of the sealing station 28 in FIGS. 2 and 3 on a larger scale, as well as the welded fin seam 29 provided with grooves 29a. As the side elevation of the roll 26a in FIG. 5 clearly shows, the two point Roll 26, 26a circumferential ribs 40 and grooves 41 formed between two adjacent ribs 40.



  One roller 26a is provided with inserts 42 with blades 43, 44 and the other roller 26 with counter-holding inserts 45. Of the blades 43, 44, one blade 43 is provided with a continuous cutting edge and the other blade 44 is provided with a plurality of discrete cutting edges 48 arranged at a distance from one another.



   Both the inserts 42 with the blades 43, 44 and the counter-holding inserts 45 are fastened in a known manner in recesses in the rollers 26, 26a by means of screws 46.



   In the example shown, the distance between two subsequent incisions corresponds to approximately 47% of the length of the pack if two knives are arranged on the circumference of the roller 26a. If the rollers 26, 26a had the same diameter as the preceding roller pairs in the sealing station 28, at least three knives 42 and counter-holding inserts 45 would have to be arranged distributed over the circumference of the rollers 26, 26a, so that in any case at least one incision into the area of the packaged piece goods G falls.

Claims (15)

PATENTANSPRÜCHE 1. Packung für Stückgüter aus einem siegelfähigen Material, die eine Längsfiossennaht und zwei Querflossennähte aufweist und mit einer Öffnungshilfe versehen ist, dadurch gekennzeichnet, dass die Längsflossennaht (29) wenigstens zwei von deren Aussenrand ausgehende und sämtliche Schichten dieser Naht durchtrennende Haupteinschnitte (4-7) aufweist.  PATENT CLAIMS 1. Pack for piece goods made of a sealable material, which has a longitudinal fin seam and two transverse fin seams and is provided with an opening aid, characterized in that the longitudinal fin seam (29) has at least two main incisions (4-7 ) having. 2. Packung nach Patentanspruch 2, dadurch gekennzeichnet, dass der Abstand zwischen zwei Haupteinschnitten (4-7) ein kontantes Mass hat.  2. Pack according to claim 2, characterized in that the distance between two main incisions (4-7) has a constant dimension. 3. Packung nach Patentanspruch 2, dadurch gekennzeichnet, dass das Mass 20% bis 50% der Packungslänge ist.  3. Package according to claim 2, characterized in that the measure is 20% to 50% of the package length. 4. Packung nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, dass jeder Haupteinschnitt (4-7) mit einer Markierung versehen ist, um die Stellen erkenntlich zu machen.  4. Pack according to one of claims 1 to 3, characterized in that each main incision (4-7) is provided with a marking to make the locations recognizable. 5. Packung nach Patentanspruch 4, dadurch gekennzeichnet, dass die Markierung ein die Längsfiossennaht (29) höchstens teilweise durchtrennender zweiter Einschnitt (8-11) ist.  5. Pack according to patent claim 4, characterized in that the marking is a second incision (8-11) which at most partially cuts through the longitudinal fin seam (29). 6. Packung nach Patentanspruch 5, dadurch gekennzeichnet, dass der zweite Einschnitt (8-11) V-förmig zum zugehörigen Haupteinschnitt (4-7) angeordnet ist und aus mehreren die Flossennaht (29) durchtrennenden Schnitten besteht.  6. Pack according to claim 5, characterized in that the second incision (8-11) is V-shaped to the associated main incision (4-7) and consists of several cuts through the fin seam (29). 7. Packung nach Patentanspruch 4, dadurch gekennzeichnet, dass die Markierung ( & 1) eine in die Längsfios- sennaht (29) eingeprägte Linie ist, um durch Veränderung der Lage einer Partie der Längsflossennaht eine Veränderung der Lichtreflexion zu bewirken.  7. Package according to claim 4, characterized in that the marking (& 1) is a line embossed in the longitudinal fissure seam (29) in order to bring about a change in the light reflection by changing the position of a portion of the longitudinal fin seam. 8. Verfahren zur Herstellung der Packung nach Patentanspruch 1, dadurch gekennzeichnet, dass eine Materialbahn (21) um die in einer stetigen Reihe zugeführten Stückgüter (G) herum zu einem Schlauch (23) geformt und dieser durch eine Längsfiossennaht (29) verschlossen wird, dass mit dem Schlauch mitlaufend äquidistante Haupteinschnitte (P7) in die Längsfiossennaht (29) eingeschnitten werden und dass mit Quersiegelmitteln (34) die einzelnen Verpackungen vollständig verschlossen und voneinander getrennt werden.  8. A method for producing the package according to claim 1, characterized in that a material web (21) around the piece goods (G) fed in a continuous row is formed into a tube (23) and this is closed by a longitudinal fin seam (29), that with the hose running equidistant main incisions (P7) are cut into the longitudinal fin seam (29) and that the individual packages are completely closed and separated from one another with transverse sealing means (34). 9. Verfahren nach Patentanspruch 8, dadurch gekennzeichnet, dass die Einschnitte (4-8) durch mit konstanter Drehzahl rotierende Messer in der Siegelstation (28) für die Herstellung der Längssiegelnaht (29) eingeschnitten werden.  9. The method according to claim 8, characterized in that the incisions (4-8) are cut by knives rotating at constant speed in the sealing station (28) for the production of the longitudinal sealing seam (29). 19. Schlauchbeutelmaschine zur Durchführung des Verfahrens nach Patentanspruch 8, dadurch gekennzeichnet, dass in der Siegelstation (28) ein mit der translatorischen Geschwindigkeit der Schlauchbahn (23) umlaufendesRollenpaar (26, 26a) mit Einstichmessern (42) zur Bildung von wenigstens der Haupteinschnitte (4-7) versehen ist.  A tubular bag machine for carrying out the method according to claim 8, characterized in that in the sealing station (28) a pair of rollers (26, 26a) rotating at the translational speed of the tubular web (23) with puncturing knives (42) for forming at least the main incisions (4) -7) is provided. 11. Schlauchbeutelmaschine nach Patentanspruch 10, dadurch gekennzeichnet, dass das Rollenpaar (26, 26a) mit den Einstichmessern (42) stromabwärts der Siegelmittel (25, 25a) angeordnet ist.  11. A tubular bag machine according to claim 10, characterized in that the pair of rollers (26, 26a) with the puncturing knives (42) is arranged downstream of the sealing means (25, 25a). 12. Schlauchbeutelmaschine nach Patentanspruch 11, dadurch gekennzeichnet, dass mehrere Einstichmesser (42) gleichmässig auf dem Umfang der einen Rolle (26a) des Rollenpaares (26, 26a) verteilt angeordnet sind.  12. A tubular bag machine according to claim 11, characterized in that several puncture knives (42) are arranged distributed uniformly on the circumference of the one roller (26a) of the roller pair (26, 26a). 13. Schlauchbeutelmaschine nach Patentanspruch 12, dadurch gekennzeichnet, dass die Gegenrolle (26) zur Rolle (26a) mit den Einstichmessern (42) mit Gegenhaltemitteln (45) versehen ist.  13. A tubular bag machine according to claim 12, characterized in that the counter roller (26) to the roller (26a) with the puncturing knives (42) is provided with counter-holding means (45). 14. Schlauchbeutelmaschine nach Patentanspruch 13, dadurch gekennzeichnet, dass die Rollen (26, 26a) des Rollenpaares mit den Einstichmessern (42) und den Gegenhaltemitteln (45) zusammen im Gleichlauf angetrieben sind.  14. A tubular bag machine according to claim 13, characterized in that the rollers (26, 26a) of the pair of rollers with the puncturing knives (42) and the counter-holding means (45) are driven together in synchronism. 15. Schlauchbeutelmaschine nach Patentanspruch 14, dadurch gekennzeichnet, dass die Einstichmesser (42) V-förmig angeordnete Klingen (43, 44) aufweisen, von denen die eine Klinge (43) eine durchgehende Schneide (47) von der Rollenaussenwand bis wenigstens angenähert zur Mittelebene der Rolle und die andere Klinge (44) mehrere diskrete Schneiden (48) im Abstand voneinander aufweisen.  15. A tubular bag machine according to claim 14, characterized in that the puncture knives (42) have V-shaped blades (43, 44), of which one blade (43) has a continuous cutting edge (47) from the outer roll wall to at least approximately to the central plane the roller and the other blade (44) have a plurality of discrete cutting edges (48) at a distance from one another. Die vorliegende Erfindung betrifft eine Packung für Stückgüter gemäss dem Oberbegriff des unabhängigen Patentanspruchs 1, ferner ein Verfahren zur Herstellung der Packung gemäss dem Oberbegriff des unabhängigen Patentanspruchs 8 und eine Schlauchbeutelmaschine zur Durchführung des Verfahrens nach dem Oberbegriff des unabhängigen Patentanspruchs 10.  The present invention relates to a pack for piece goods according to the preamble of independent claim 1, further to a method for producing the pack according to the preamble of independent claim 8 and a tubular bag machine for carrying out the method according to the preamble of independent claim 10. Es ist bekannt, eine schlauchförmige Materialbahn in gleichbleibenden Abständen mit Aufreisshilfen, insbesondere einem Band, zu versehen, dessen Ende über die Längsnaht vorsteht, um ein Griffstück zu bilden. Wenn die Längsnaht als Flossennaht ausgebildet ist, hat sie infolge der beiden miteinander verbundenen Teile der Materialbahn eine höhere Zerreissfestigkeit als der übrige Teil der Packung. Das Einreissen in die Flossennaht wird gemäss der CH-A 558 283 durch wenigstens einen vom Rand der Flossennaht ausgehenden Einschnitt oder zwei ungleich lange Einschnitte neben dem Aufreissstreifen erleichtert.  It is known to provide a tubular material web at constant intervals with tearing aids, in particular a band, the end of which protrudes beyond the longitudinal seam to form a handle. If the longitudinal seam is designed as a fin seam, it has a higher tensile strength than the rest of the pack due to the two parts of the material web connected to one another. According to CH-A 558 283, tearing into the fin seam is facilitated by at least one incision starting from the edge of the fin seam or two incisions of unequal length next to the tear strip. In der Verpackungsindustrie ist es bekannt, dass das Befestigen von Aufreissstreifen allein schon eine aufwendige Mehrarbeit im Ablauf der Herstellung einer Packung bedeutet. Das Anbringen von Einschnitten in die Flossennaht an genau festgelegten Stellen bedeutet eine zusätzliche Steuerung, die aber nur bei langsamen Transportgeschwindigkeiten genau arbeiten kann.  It is known in the packaging industry that the fastening of tear strips alone means an expensive additional work in the course of the production of a package. Making incisions in the fin seam at precisely defined points means additional control, which, however, can only work precisely at slow transport speeds. Demgegenüber wurde in der CH-A 610 261 vorgeschlagen, die Querflossennähte mit Einschnitten zu versehen, um die Packung in Längsrichtung aufzureissen. Es hat sich jedoch bei Stückgütern, insbesondere bei Schokoladestangen, gezeigt, dass die bis 6 Lagen aufweisende Quersiegelnaht schwer aufzureissen ist und meistens nur eine Ecke des verpackten Gutes freigibt. Dabei wäre es gerade bei Schokolade erwünscht, mit einem einzigen Griff die Stange soweit freizulagen, dass kein zweiter Handgriff nowendig ist, um die Schokolade geniessen zu können und trotzdem einen Teil der Packung als Schutz gegen Verschmutzung der Hände zu haben.  In contrast, it was proposed in CH-A 610 261 to provide the transverse fin seams with incisions in order to tear open the package in the longitudinal direction. However, it has been shown in the case of piece goods, in particular chocolate bars, that the cross-seal seam, which has up to 6 layers, is difficult to tear open and usually only releases one corner of the packaged goods. In the case of chocolate in particular, it would be desirable to expose the bar with a single handle so that no second handle is necessary to enjoy the chocolate and still have part of the package as protection against dirt on the hands. In der USA-A 3 196067 ist eine Vorrichtung zum Verschliessen einer Packung mittels einer Flossennaht beschrieben. Das Trennmesser ist mit abstehenden Klingen versehen, um die Flossennaht an mehreren Stellen durch Einschnitte zu schwächen. Derartige auf die Länge der Flossennaht verteilte Einschnitte wären für die vorgesehene Anwendung bei einer Packung für Stückgüter erwünscht, jedoch müsste das Einschneiden bei kontinuierlichem Durchlauf des Schlauches geschehen. Sobald jedoch eine gezielte Verteilung der Einschnitte längs einer Flossennaht angestrebt wird, benötigt dies eine Steuerung der Einschneidemittel.  In US-A 3 196067 a device for closing a package by means of a fin seam is described. The cutting knife is provided with protruding blades to weaken the fin seam in several places through incisions. Such incisions distributed over the length of the fin seam would be desirable for the intended use in a pack for piece goods, but the incision would have to be made while the tube was continuously running. However, as soon as a targeted distribution of the incisions along a fin seam is sought, this requires control of the incision means. Es ist deshalb eine Aufgabe der Erfindung, eine Packung für Stückgüter mit einer Aufreisshilfe zu schaffen, durch die das Stückgut auf einem wesentlichen Teil seiner Länge freigelegt werden kann. Die Vorrichtung zur Herstellung der Aufreisshilfe soll billig sein und sich ohne Schwierigkeit an bestehenden Schlauchbeutelmaschinen anbringen lassen und keine Einbusse bezüglich der Leistung bewirken.  It is therefore an object of the invention to provide a package for piece goods with a tear-open aid, through which the piece goods can be exposed over a substantial part of its length. The device for producing the tear-open aid should be inexpensive and can be attached to existing tubular bag machines without difficulty and should not cause any losses in terms of performance. Erfindungsgemäss wird dies durch die Merkmale im kennzeichnenden Teil des unabhängigen Patentanspruchs 1 erreicht. Das Verfahren zur Herstellung der Packung und die Vorrichtung zur Durchführung dieses Verfahrens sind durch die Merkmale im kennzeichnenden Teil des jeweiligen unabhängigen Patentanspruchs 8 und 10 beschrieben. **WARNUNG** Ende CLMS Feld konnte Anfang DESC uberlappen**.  According to the invention this is achieved by the features in the characterizing part of independent claim 1. The method for producing the pack and the device for carrying out this method are described by the features in the characterizing part of the respective independent claims 8 and 10. ** WARNING ** End of CLMS field could overlap beginning of DESC **.
CH5072/81A 1981-08-06 1981-08-06 Pack for piece goods, process for producing the pack and tubular-bag machine for carrying out the process CH651795A5 (en)

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CH5072/81A CH651795A5 (en) 1981-08-06 1981-08-06 Pack for piece goods, process for producing the pack and tubular-bag machine for carrying out the process

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CH5072/81A CH651795A5 (en) 1981-08-06 1981-08-06 Pack for piece goods, process for producing the pack and tubular-bag machine for carrying out the process

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226835A2 (en) * 1985-12-21 1987-07-01 Unilever N.V. Package made of flexible material
EP0340629A1 (en) * 1988-05-02 1989-11-08 Dámaso Moreno Web for wrapping with a web material, wrapped package and process for making the web
WO1991006488A1 (en) * 1989-10-27 1991-05-16 Teich Aktiengesellschaft Package for piece-goods
WO1992015497A1 (en) * 1991-03-08 1992-09-17 Lohmann Gmbh & Co. Kg Tubular film bag package, in particular for sanitary towels and the like
US5470015A (en) * 1991-09-13 1995-11-28 Teich Aktiengesellschaft Tubular pouch with opening aid
EP0893361A1 (en) * 1997-07-24 1999-01-27 Soplaril SA Pack of objects wrapped in a plastic film, plastic film for such a pack, and method of manufacturing such a plastic film
EP0950607A1 (en) * 1997-09-08 1999-10-20 Nippon Seiki Co., Ltd. Easy-to-open packaging bag and apparatus for production thereof
EP0957043A1 (en) * 1998-05-12 1999-11-17 Mars Alimentaire S.A. A package for one or more candy bars
WO2004056675A1 (en) * 2002-12-23 2004-07-08 Fernando Perez Sanjuan Bag for food
EP1593603A1 (en) * 2004-05-05 2005-11-09 Amcor Flexibles Europe A/S VFFS/HFFS packaging with opening aid on the longitudinal seam and process of making such a packaging
EP2484603A1 (en) * 2011-02-04 2012-08-08 Mondi AG Film and packaging made from it with opening aid
US20140223861A1 (en) * 2010-05-25 2014-08-14 Frito-Lay North America, Inc. Easy open bag
CN107951391A (en) * 2018-01-11 2018-04-24 深圳市中谷联创信息服务有限公司 A kind of capsule machine capsule brewing device and its method
DE102018124586A1 (en) * 2018-10-05 2020-04-09 DIENES WERKE FüR MASCHINENTEILE GMBH & CO. KG Tubular bag machine and bag pack made with it
EP3666321B1 (en) * 2014-01-09 2022-08-17 Hollister Incorporated Package having integral tab with finger hole opening feature
NL2028944B1 (en) * 2021-08-10 2023-02-22 Verhuur & Verkoop Klus Nl B V Heat sealing device for flowpack packaging

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226835A2 (en) * 1985-12-21 1987-07-01 Unilever N.V. Package made of flexible material
EP0226835A3 (en) * 1985-12-21 1988-10-19 Unilever N.V. Package made of flexible material
EP0340629A1 (en) * 1988-05-02 1989-11-08 Dámaso Moreno Web for wrapping with a web material, wrapped package and process for making the web
WO1989010877A1 (en) * 1988-05-02 1989-11-16 Syspack S.A. Web of foil for foldable container made of foil-like material, foldable container and process for producing said web of foil
US5184771A (en) * 1989-10-27 1993-02-09 Teich Aktiengesellschaft Packaging for piece goods
WO1991006488A1 (en) * 1989-10-27 1991-05-16 Teich Aktiengesellschaft Package for piece-goods
WO1992015497A1 (en) * 1991-03-08 1992-09-17 Lohmann Gmbh & Co. Kg Tubular film bag package, in particular for sanitary towels and the like
US5409115A (en) * 1991-03-08 1995-04-25 Lohmann Gmbh & Co. Kg Tubular bag packaging, for bandage-like materials in particular
US5470015A (en) * 1991-09-13 1995-11-28 Teich Aktiengesellschaft Tubular pouch with opening aid
EP0893361A1 (en) * 1997-07-24 1999-01-27 Soplaril SA Pack of objects wrapped in a plastic film, plastic film for such a pack, and method of manufacturing such a plastic film
FR2766465A1 (en) * 1997-07-24 1999-01-29 Soplaril Sa PACK OF PACKAGED OBJECTS WITH A PLASTIC FILM, PLASTIC FILM FOR PACKAGING A PACK, AND METHOD FOR MANUFACTURING THE PLASTIC FILM
EP0950607A4 (en) * 1997-09-08 2002-02-06 Nippon Seiki Co Ltd Easy-to-open packaging bag and apparatus for production thereof
EP0950607A1 (en) * 1997-09-08 1999-10-20 Nippon Seiki Co., Ltd. Easy-to-open packaging bag and apparatus for production thereof
EP0957043A1 (en) * 1998-05-12 1999-11-17 Mars Alimentaire S.A. A package for one or more candy bars
WO1999058421A1 (en) * 1998-05-12 1999-11-18 Mars Alimentaire S.A. A package for one or more pieces of confectionary
WO2004056675A1 (en) * 2002-12-23 2004-07-08 Fernando Perez Sanjuan Bag for food
EP1593603A1 (en) * 2004-05-05 2005-11-09 Amcor Flexibles Europe A/S VFFS/HFFS packaging with opening aid on the longitudinal seam and process of making such a packaging
WO2005105581A1 (en) * 2004-05-05 2005-11-10 Amcor Flexibles Europe A/S Vffs/hffs packaging with opening aid on the longitudinal seam and process of making such a packaging
US20140223861A1 (en) * 2010-05-25 2014-08-14 Frito-Lay North America, Inc. Easy open bag
EP2484603A1 (en) * 2011-02-04 2012-08-08 Mondi AG Film and packaging made from it with opening aid
EP3666321B1 (en) * 2014-01-09 2022-08-17 Hollister Incorporated Package having integral tab with finger hole opening feature
CN107951391A (en) * 2018-01-11 2018-04-24 深圳市中谷联创信息服务有限公司 A kind of capsule machine capsule brewing device and its method
DE102018124586A1 (en) * 2018-10-05 2020-04-09 DIENES WERKE FüR MASCHINENTEILE GMBH & CO. KG Tubular bag machine and bag pack made with it
NL2028944B1 (en) * 2021-08-10 2023-02-22 Verhuur & Verkoop Klus Nl B V Heat sealing device for flowpack packaging

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