(19)
(11)EP 3 368 426 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
26.06.2019 Bulletin 2019/26

(21)Application number: 16725985.2

(22)Date of filing:  11.05.2016
(51)International Patent Classification (IPC): 
B65D 3/22(2006.01)
B65D 81/38(2006.01)
(86)International application number:
PCT/US2016/031733
(87)International publication number:
WO 2017/074510 (04.05.2017 Gazette  2017/18)

(54)

OVERWRAP CONTAINER, METHOD OF AND APPARATUS FOR PRODUCING SAME

UMVERPACKUNGSBEHÄLTER, VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG DAVON

CONTENANT D'EMBALLLAGE, PROCÉDÉ ET APPAREIL DE PRODUCTION ASSOCIÉ


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 30.10.2015 US 201514927598

(43)Date of publication of application:
05.09.2018 Bulletin 2018/36

(73)Proprietor: Paper Machinery Corporation
Milwaukee WI 53224 (US)

(72)Inventors:
  • BONNEY, Mark, Jerome
    Waukesha, WI 53186 (US)
  • UBI, Chris, George
    Brookfield, WI 53003 (US)
  • FRITZ, James, Jerome
    West Bend, WI 53095 (US)

(74)Representative: Somervell, Thomas Richard 
Marks & Clerk LLP Alpha Tower Suffolk Street Queensway
Birmingham B1 1TT
Birmingham B1 1TT (GB)


(56)References cited: : 
WO-A1-2008/042378
JP-A- 2000 142 834
US-B1- 6 196 454
JP-A- 2000 109 144
JP-A- 2005 263 275
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    FIELD



    [0001] The present disclosure relates generally to thermally insulated containers, including cups, for storing hot and cold beverages and other consumable food products. More particularly, the present disclosure pertains to thermally insulated containers wherein the container or cup is configured with a double wall construction, and wherein an air gap is provided between the individual walls of the double wall construction.

    BACKGROUND



    [0002] The Assignee of the instant application, Paper Machinery Corporation of Milwaukee, Wisconsin U.S.A. is the manufacturer of paper cup making machines used to make a variety of cups and containers. A typical cup machine for making paper cups, for instance, includes a turret having a plurality of mandrels about which the containers are formed. The turret sequentially rotates the mandrels into cooperation with a variety of work stations where numerous cup forming procedures occur.

    [0003] In an exemplary procedure, a circular bottom blank is cut out at one work station and attached to the end of a mandrel by a vacuum applied through the mandrel. During this procedure, the outside lip of the bottom blank is folded downwardly. At a subsequent work station, a side wall blank is wrapped around a mandrel. The side wall blank is heated and sealed using a seam clamp along an overlapped side seam which runs generally longitudinally along the side of the cup. Typically, a paperboard or solid plastic sheet is coated with a thermoplastic such as polyethylene, so the bottom and side wall blanks may be heated and sealed together. In some applications, the side wall blank includes a flap extending beyond the lip of the side wall blank, and this flap is bent over the lip. At a bottom finishing station, the flap is pressed against the lip from an inside recessed area of the bottom of the cup. By heating the polyethylene and firmly pressing the side wall flap and the bottom blank lip together, a bottom seal is formed and the cup is provided with a sturdy bottom region having a recessed area. There may also be other work stations where various other additional cup forming procedures are carried out. For example, one station may be used to provide a curl at the top or rim of the cup to provide a more functional drinking container and a better appearance.

    [0004] Cups and containers produced according to the procedure outlined above typically do not have the ability to keep beverages and food products stored therein warm and, at the same time, protect the hand from becoming uncomfortable from holding a hot liquid or material. Similarly, such cups and containers do not have the ability to insulate a cold beverage or products and protect the exterior of the cold container from moisture condensation that may pool on the bottom of the container.

    [0005] Many cups and containers have been produced with sleeves, overwraps or laminates to provide a thermally insulated double walled cup or container with an air gap between inner and outer walls to create hand-hold protection in addition to heat and cold retention in the beverage or food product contained therein. For example, prior art document US 6,196,454 B1 (Sadlier) relates to an insulating cup or container having a side wall and an adhesively fastened insulating sheet, and a method of manufacturing the same. WO 2008/042378 A1 (Puls et al.) relates to a container providing an inner wall and an outer walls wrapped therearound so as to define a double-wall container construction. JP 2000-109144A (Katsuhiro) relates to a paper heat-insulation container formed of a trunk part, a bottom part, and also a paper cup body. JP 2005-263275A (Sadami) relates to a heat-insulated paper container with heat insulating spaces, and a method of manufacturing the same.

    [0006] In development of the present disclosure, the inventors have discovered that the air gap created between the inner and outer walls of the container is not always uniform therebetween. For example, it has been found that when applying an overwrap around a base cup or container, the air gap is substantially eliminated in the seam area formed by the overlapping opposite edges of the overwrap. This is due to the mechanical clamping which normally occurs along the length of the overwrap side seam. Such anomaly leads to the formation of a zone along the overwrap seam which makes the container or cup uncomfortable or inconvenient to hold relative to the remainder of the holding surface of the container or cup.

    [0007] Accordingly, there remains a need to provide a double walled insulated container which overcomes the short comings of previous designs, and creates an overwrap container with a uniform air gap between the inner and outer walls of the container so as to ensure comfort of the holder of the overwrap container around its entire outer periphery. In addition, it is desirable to provide a method of and an apparatus for forming such an overwrap container.

    SUMMARY



    [0008] The present disclosure relates to an overwrap container including a base container having a first side seam on a side wall that extends about a longitudinal axis to define an internal volume, and a bottom connected to the side wall. An overwrap is positioned over the side wall of the basic container. The overwrap has a second side seam aligned longitudinally with the first side seam. Connecting elements are positioned between the side wall of the base container and the overwrap, and join the side wall of the base container and the overwrap together except in an area along the aligned first and second side seams to define a uniform spacing extending continuously between the side wall and the overwrap forming an air gap therebetween The connecting elements are formed as elongated spaced apart adhesive beads protruding outwardly from an outer periphery of the side wall.

    [0009] The present disclosure also relates to a method for producing an overwrap container comprising the steps of: a) providing a base container having a first side seam on a side wall that extends about a longitudinal axis to define an internal volume, and a bottom secured to the side wall; b) providing the side wall of the base container with connecting elements around an outer periphery of the side wall except for an area along the first side seam wherein the connecting elements are formed by applying a plurality of elongated spaced apart adhesive beads protruding outwardly from the outer periphery of the side wall of the base container; and c) providing an overwrap having a second side seam over the side wall of the base container such that the first side seam of the base container and the second side seam are aligned together, and such that the overwrap is joined by the connecting elements to the outer periphery of the side wall of the base container except in an area along the first side seam to define an overwrap container having a uniform spacing extending continuously between the side wall of the base container and the overwrap.

    [0010] The present disclosure further relates to an apparatus for producing an overwrap container including a first mechanized arrangement configured to provide a base container having a side wall and a bottom connected thereto, the side wall being formed with a first side seam extending longitudinally thereof. A second mechanized arrangement is connected with the first mechanized arrangement, is configured to provide a set of connecting elements on the side wall of the base container except along the length of the first side seam, and is configured to position an overwrap having a second side seam secured around the side wall of the base container such that the side wall of the base container is joined to the overwrap except along the length of the first side seam and such that the first and second side seams are aligned so as to define an overwrap container having a uniform air gap extending continuously between the sidewall of the base container and the overwrap, wherein the connecting elements are formed of a plurality of elongated spaced apart adhesive beads protruding outwardly from the outer periphery of the side wall of the base container.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0011] The drawings illustrate the best mode presently contemplated of carrying out the disclosure.

    [0012] In the drawings:

    Figure 1 is a schematic plan view of a cup making machine for making a base container or cup forming part of an overwrap container.

    Figure 2 is a bottom perspective view of a base container or cup produced from the machine shown in Figure 1.

    Figure 3 is a sectional view taken on line 3-3 of Figure 2.

    Figure 4 is a schematic plan view of a cup making machine for applying adhesive elements to the base container or cup and for applying an overwrap thereto.

    Figure 5 is a view similar to Figure 2 showing first adhesive elements applied to the base container or cup.

    Figure 6 is a view similar to Figure 5 showing a second adhesive element applied to the base container or cup at a top edge.

    Figure 7 is a view showing an overwrap about to be placed and secured around the base container or cup.

    Figure 8 is a bottom perspective view of a finished overwrap container.

    Figure 9 is a sectional view taken on line 9-9 of Figure 8 showing the adhesive elements between the base container or cup and the overwrap outside aligned side seams of the base container and the overwrap.

    Figure 10 is a sectional view taken on line 10-10 of Figure 8 showing the absence of adhesive elements in the area of the aligned side seams of the base container and the overwrap.

    Figure 11 is a bottom view of a finished overwrap container showing a uniform air gap between inner and outer walls of the overwrap container.


    DETAILED DESCRIPTION OF THE DRAWINGS



    [0013] The drawings illustrate various aspects of the present disclosure including a machine for forming a base container or cup, a machine for providing adhesive on the base container and applying an overwrap around the base containers and a finished overwrap container.

    [0014] Referring generally to Figure 1, an exemplary cup making machine or apparatus 10 is illustrated. This particular design includes a mandrel turret 12 which cooperates with a transfer turret 14 and a rimming turret 16. Mandrel turret 12 includes a plurality of frusto-conical mandrels 18 that are rotated in a stepwise or indexing manner between surrounding work stations. For example, a bottom blank may be applied to a given mandrel 18 at a bottom maker station 20 and then rotated to a bottom pre-heat station 22. From this point, the mandrel 18 is rotated into cooperation with the transfer turret 14 which receives generally trapezoidally shaped side wall blanks from a hopper 24, and rotates each side wall blank into cooperation with the cooperating mandrel 18. The side wall blank is then folded about the mandrel 18 over the bottom blank, heated and sealed along a seam.

    [0015] Next, the bottom blank and the side wall blank are rotated to a bottom heat station 26. After heating, mandrel turret 12 indexes the subject mandrel 18 to a roller incurl station 28 where a portion of the side wall blank, i.e. a side wall blank flap, is bent over an outer lip of the bottom blank to form a recessed bottom in the cup. The cup is then moved to a bottom finishing station 30 where the side wall blank flap and the bottom blank lip are pressed against the lower region of the side wall blank to form a seal.

    [0016] Once the bottom is formed and sealed, the cup is transferred to rimming turret 16 and rotated to a lube station 32 and then to a rimming precurl station 34 where the upper lip of the side wall is curled outwardly. From that station, the cup is indexed to a rimming finish curl station 36 which finishes the curled portion along the top of the cup to make an attractive edge. At this point, the cup may be moved to an optional lid groover station 38 and then to a cup blowout station 40 for removal of the finished cup depicted in Figure 2 as a base container or cup 42 with a formed side wall 42a that extends about a longitudinal axis to define an internal volume.

    [0017] The base container or cup 42 includes an upper region 44 having a curled rim 46 and a bottom region 48. Cup 42 is made from a side wall blank 50 disposed generally transverse thereto. A bottom blank 52 is typically bent or folded over in proximity to its outer edge to form a lip 54. The side wall blank 50 is located with respect to bottom blank 52 so that a flap portion 56 extends beyond lip 54. Flap portion 56 is bent or folded around lip 54 so lip 54 may be squeezed between flap portion 56 and a lower portion 57 of side wall blank 50 (see Figure 3).

    [0018] The base container or cup 42 is typically made from paperboard blanks having a thermoplastic coating such as polyethylene. The thermoplastic material permits heating and sealing of adjacent components. For example, when side wall blank 50 is wrapped around bottom blank 52, the adjacent edges are heated and pressed together along a seam 58. The cup making machine 10 has the ability to create cups 42 with either a left over right seam or a right over left seam. Similarly, lip 54, flap portion 56 and lower portion 57 of side wall blank 50 may be heated and pressed together at bottom finishing station 30 to form a strong, leak-proof bottom region 48. By forming base cup 42 as illustrated in Figure 3, a recessed area 60 is created in the bottom of cup 42 on an opposite side of blank 52 from the main container region of cup 42. Recessed area 60 in the bottom of the cup permits insertion of a tool to press lip 54 and flap portion 56 towards the lower region 57 of side wall blank 50.

    [0019] Referring now to Figure 4, the base container or cup 42 is then transferred from the first machine apparatus 10 to a first cup feeder 62 on a second machine or apparatus 64. The first cup feeder 62 is aligned with a rotatable mandrel turret 66 which includes a plurality of rotary mandrels 68 that are rotated or indexed in a stepwise manner counterclockwise about a vertical axis to various rotary positions. For example, the finished base container or cup 42 is transferred by the cup feeder 62 onto a mandrel 68. Then the turret 66 is indexed one step to the rotary position at 70 where the base container 42 is rotated on the mandrel 68 about an axis perpendicular to the vertical turret axis so that the side seam 58 is orientated upwardly to a twelve o'clock position. The turret 66 is again indexed an additional step to bring the cup 42 on the mandrel 68 to the rotary position at 72 with the side seam 58 maintained in the twelve o'clock position. At this position, a plurality of spaced apart first adhesive elements (such as shown in 74 in Figure 5) are initially applied circumferentially around the outer surface of the side wall 42a of the base container or cup 42 except in the area of the side seam 58 which is left blank. In a typical application, the first adhesive elements 74 take the form of a heated glue applied by a first radial glue apparatus 75 in elongated beads or ribs which when applied to the basic container 42 protrude outwardly therefrom and extend generally parallel to each other in equally spaced apart relationship. The adhesive elements 74 may take other forms and configurations as long as they are not formed in the vicinity of and along the side seam 58.

    [0020] The base container 42 with the first adhesive elements 74 applied then indexes three steps to a position at 76 designated a cool down zone where the first adhesive elements or beads 74 cool and begin to harden. The base container 42 with the adhesive elements 74 is then indexed one step to the rotary position at 78 which is a blow off station at which the base container 42 is blown into an inverter turret 80. Alternatively, once the adhesive elements 74 have been initially applied to the base container 42 at position 72, the base container 42 can be indexed four steps directly to the blow off station at 78, it being understood that the adhesive beads 74 will cool and initially harden during the rotary travel from the position 72 to position 78.

    [0021] Once the first adhesive elements 74 have been applied to the outer peripheral surface of the base container or cup 42, the inverter turret 80 is indexed accordingly to send the containers 42 to a second cup feeder 82 which is aligned with a rotatable mandrel turret 84. The mandrel turret 84 has a plurality of rotary mandrels 86 that are rotated or indexed in a stepwise manner clockwise about a vertical axis to various positions similar to turret 66. For example, the pre-glued base container or cup 42 is transferred by the cup feeder 82 onto a mandrel 86. Then, the turret 84 is indexed to a seam orientation station at 88 at which the pre-glued base container or cup 42 is rotated or spun on the mandrel 86 so that the side seam 58 on the side wall 42a of the pre-glued base container 42 is oriented upwardly to the twelve o'clock position. With the mandrel 86 held in position to maintain the twelve o'clock orientation of the side seam 58, the turret 84 is indexed to bring the pre-glued base container or cup 42 to a rotary position at 90. Here, a second radial glue apparatus 92 applies a second and final adhesive element (shown at 94 in Figure 5) circumferentially around the outer surface of the base container or cup 42 beneath the curled rim 46 except in the area of the side seam 58 which is left blank. The second adhesive element 94 also takes the preferred form of an elongated bead or rib, which when applied to the top outer surface of base container or cup 42, protrudes outwardly therefrom and extends generally parallel to the first adhesive elements 74.

    [0022] Once the adhesive elements 74, 94 have been applied, the base container or cup 42 is indexed clockwise to a position at 96 at which a pre-glued overwrap (seen at 98 in Figure 7) is applied completely around the base container or cup 42. The overwrap 98 is a blank formed typically of paperboard, shaped similarly to and sized slightly smaller than the side wall blank 50 used in forming the base container or cup 50. The overwrap 98 is sized so that it lies between a top edge and a bottom edge of the base container 42. More particularly, the overwrap 98 has opposite side edges 98a, 98b one of which is provided by an applicator 100 along its length with an adhesive 102. The overwrap 98 is applied around the side wall 42a of the base container or cup 42 so that the inside surface of the overwrap 98 is connected to and spaced from the outside surface of the base container or cup 42 by means of the cooled adhesive elements 74, 94. At the same time, the edges 98a, 98b of the overwrap 98 are overlapped and joined or sealed together by the adhesive 102 to form an overwrap side seam 104 which is aligned with the base container side seam 58. The forming of the overwrap side seam 104 is made possible by a seam clamp 106 which applies a pressing or clamping force along the seam 104.

    [0023] With the joining of the overwrap 98 to the base container or cup 42, a finished overwrap container 108 (Figure 8) is formed, and is indexed by the turret 84 to a position at 110. Here, the finished overwrap container 108 is blown off into a pocket of a second inverter turret 112 which is indexed to blow the overwrap container 108 to a cup stacker (not shown). The exemplary overwrap container 108 has a frusto-conical shape with an open top and a closed bottom end. However, the present disclosure contemplates that the base container 42 and the overwrap 98 may be otherwise formed to provide a differently shaped overwrap container 108.

    [0024] In the completed overwrap container 108, the base container or cup 42 forms an inner wall, and the overwrap 98 forms an outer wall, the inner and outer walls defining a double walled container. The inner and outer walls are connected together by the adhesive elements 74, 94 except in the overlapped areas of the side seams 58, 104. However, the adhesive elements 74, 94 function to space the inner and outer walls 42, 98 uniformly from each other completely throughout the entire overwrap container 104. Thus, the adhesive elements 74, 94 serve as both connecting and spacing elements.

    [0025] Figure 9 and 10 illustrate different cross sections of the overwrap container 108 depicting the structural relationship of the base container or cup 42 and the overwrap 98 in the areas outside and within the side seam 58, and showing the existence of and the absence of, respectfully, the adhesive elements 74, 94.

    [0026] It should be understood that the purpose of pre-gluing the adhesive elements 74, 94 on the base container of cup 42 is to eliminate any compression of the elements or beads 74, 94 during the wrapping process of the overwrap 98. The adhesive elements 74, 94 are designed to be hardened before the wrapping process occurs resulting in the uniform air gap 114 between the container 42 and the overwrap 98. In addition, the seams 58, 104 are aligned to obtain the desired uniform air gap 114 and to minimize any wrapping defects which might otherwise occur on adhesive elements if provided along the side seam 58.

    [0027] It is important to note that the particular application of the adhesive elements 74, 94 permit the connection of the overwrap 98 to the base container or cup 42 except along the entire length of the base container or cup side seam 58. However, the adhesive elements 74, 94permit spacing of the overwrap 98 from the base container or cup 42 around the entire periphery thereof so that a uniform air gap 114 extends continuously between the overwrap 98 and the base container or cup 42 as seen in Figure 11. The creation and maintenance of such a uniform air gap 114 improves over the prior art by providing an overwrap container 108 which is comfortable and convenient to hold around the entire periphery of the container 108.

    [0028] In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be inferred therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed. The different configurations, systems, and method steps described herein may be used alone or in combination with other configurations, systems and method steps. It is to be expected that various equivalents, alternatives and modifications are possible within the scope of the appended claims.


    Claims

    1. An overwrap container (108) comprising:

    a base container (42) having a first side seam (58) on a side wall (42a, 50) that extends about a longitudinal axis to define an internal volume, and a bottom (52) connected to the side wall (42a, 50);

    an overwrap (98) positioned over the side wall (42a, 50) of the base container (42), the overwrap (98) having a second side seam (104) aligned longitudinally with the first side seam (58); and

    connecting elements positioned between the side wall (42a, 50) of the base container (42) and the overwrap (98), and joining the side wall (42a, 50) of the base container (42) and the overwrap (98) together except in an area along the aligned first and second side seams (58, 104) to define a uniform spacing extending continuously between the side wall (42a, 50) and the overwrap (98) forming an air gap (114) therebetween,

    wherein the connecting elements are formed of adhesive elements (74, 94),

    wherein the adhesive elements are formed as elongated spaced apart beads (74, 94) protruding outwardly from an outer periphery of the side wall (42a, 50).


     
    2. The overwrap container (108) of claim 1, wherein the adhesive elements (74, 94) are formed from heated glue.
     
    3. The overwrap container (108) of claim 1, wherein the beads (74, 94) extend generally parallel to each other.
     
    4. The overwrap container (108) of claim 1, wherein the overwrap (98) extends completely around the side wall (42a, 50) of the base container (42).
     
    5. The overwrap container (108) of claim 1, wherein the overwrap (98) extends between a top edge of the base container (42) and a bottom edge of the base container (42).
     
    6. The overwrap container (108) of claim 1, wherein the connecting elements are absent along entire lengths of the aligned first and second side seams (58, 104).
     
    7. A method for producing an overwrap container (108) comprising the steps of:

    a) providing a base container (42) having a first side seam (58) on a side wall (42a, 50) that extends about a longitudinal axis to define an internal volume, and a bottom secured to the side wall (42a, 50);

    b) providing the side wall (42a, 50) of the base container (42) with connecting elements around an outer periphery of the side wall (42a, 50) except for an area along the first side seam (58); and

    c) providing an overwrap (98) having a second side seam (104) over the side wall (42a, 50) of the base container (42) such that the first side seam (58) of the base container (42) and the second side seam (104) are aligned together, and such that the overwrap (98) is joined by the connecting elements to the outer periphery of the side wall (42a, 50) of the base container (42) except in an area along the first side seam (58) to define an overwrap container (108) having a uniform spacing (114) extending continuously between the side wall (42a, 50) of the base container (42) and the overwrap (98),

    wherein the step b) includes applying a plurality of elongated spaced apart adhesive beads (74, 94) protruding outwardly from the outer periphery of the side wall (42a, 50) of the base container (42).
     
    8. The method of claim 7, wherein the adhesive beads (74, 94) are applied with heated glue.
     
    9. The method of claim 7, wherein the adhesive beads (74, 94) are formed generally parallel to each other.
     
    10. The method of claim 7, wherein step c) includes overlapping opposite side edges (98a, 98b) of the overwrap (98) and sealing the overlapped side edges (98a, 98b) together to form the second side seam (104).
     
    11. The method of claim 7, wherein the connecting elements applied in step c) are absent along the complete length of the first side seam (58).
     
    12. The method of claim 8, wherein the side wall (42a, 50) of the base container (42) and the overwrap (98) are joined together once the heated glue has cooled.
     
    13. An apparatus (10) for producing an overwrap container (108) comprising:

    a first mechanized arrangement configured to provide a base container (42) having a side wall (42a, 50) and a bottom (52) connected thereto, the side wall (42a, 50) being formed with a first side seam (58) extending longitudinally thereof; and

    a second mechanized arrangement connected with the first mechanized arrangement and configured to provide a set of connecting elements on the side wall (42a, 50) of the base container (42) except along a length of the first side seam (58), and configured to position an overwrap (98) having a second side seam (104) around the side wall (42a, 50) of the base container (42) such that the side wall (42a, 50) of the base container (42) is joined to the overwrap (98) except along the length of the first side seam (58) and such that the first and second side seams (58, 104) are aligned so as to define an overwrap container (108) having a uniform air gap (114) extending continuously between the side wall (42a, 50) of the base container (42) and the overwrap (98),

    wherein the second mechanized arrangement includes a set of rotary turrets (12, 66, 84) having mandrels (18, 68, 86) for receiving the base containers (42) and transferring the base containers (42) to stations (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) at which the connecting elements are applied, and at which the overwrap (98) is joined to the side wall (42a, 50) of the base container (42),

    wherein the connecting elements are formed of a plurality of elongated spaced apart adhesive beads (74, 94) protruding outwardly from the outer periphery of the side wall (42a, 50) of the base container (42).


     
    14. The apparatus (10) of claim 13, wherein the stations (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) include a first station at which a first adhesive is applied on the side wall (42a, 50) of the container (42), and a second station at which a second adhesive is applied on the side wall (42a, 50) spaced from the first adhesive.
     
    15. The apparatus (10) of claim 14, wherein the first and second adhesives are applied by radial glue applicators (75, 92) in the form of a heated glue.
     
    16. The apparatus (10) of claim 15, wherein the stations (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) further include a third station at which the overwrap (98) is wrapped over the side wall (42a, 50) of the base container (42) and joined thereto by the first and second adhesives to form the overwrap container (108).
     


    Ansprüche

    1. Umhüllungsbehälter (108), Folgendes enthaltend:

    einen Basisbehälter (42) mit einer ersten Seitennaht (58) an einer Seitenwand (42a, 50), die sich um eine Längsachse erstreckt, um ein Innenvolumen zu definieren, und einem Boden (52), der an die Seitenwand (42a, 50) angeschlossen ist; und

    eine Umhüllung (98), positioniert über die Seitenwand (42a, 50) des Basisbehälters (42), wobei die Umhüllung (98) eine zweite Seitennaht (104) hat, die longitudinal auf die erste Seitennaht (58) ausgerichtet ist; und

    Verbindungselemente, die zwischen der Seitenwand (42a, 50) des Basisbehälters (42) und der Umhüllung (98) positioniert sind, und die Seitenwand (42a, 50) des Basisbehälters (42) und die Umhüllung (98) zusammen verbinden, ausgenommen in einer Fläche entlang der aufeinander ausgerichteten ersten und zweiten Nähte (58, 104), um gleichförmige Abstände zu definieren, die sich kontinuierlich zwischen der Seitenwand (42a, 50) und der Umhüllung erstrecken, wodurch sich dazwischen eine Luftlücke (114) formt,

    worin die Verbindungselemente aus adhäsiven Elementen (74, 94) geformt sind,

    worin die adhäsiven Elemente als längliche mit Abständen versehene Perlen (74, 94) geformt sind, die von einer Außenperipherie der Seitenwand (42a, 50) nach außen herausragen.


     
    2. Umhüllungsbehälter (108) nach Anspruch 1, worin die adhäsiven Elemente (74, 94) aus erhitztem Klebstoff geformt sind.
     
    3. Umhüllungsbehälter (108) nach Anspruch 1, worin die Perlen (74, 94) sich im Allgemeinen parallel zueinander erstrecken.
     
    4. Umhüllungsbehälter (108) nach Anspruch 1, worin die Umhüllung (98) sich ganz um die Seitenwand (42a, 50) des Basisbehälters (42) herum erstreckt.
     
    5. Umhüllungsbehälter (108) nach Anspruch 1, worin die Umhüllung (98) sich zwischen einer Oberkante des Basisbehälters (42) und einer Unterkante des Basisbehälters (42) erstreckt.
     
    6. Umhüllungsbehälter (108) nach Anspruch 1, worin die Verbindungselemente entlang der gesamten Längen der aufeinander ausgerichteten ersten und zweiten Seitennähte (58, 104) fehlen.
     
    7. Verfahren zum Erzeugen eines Umhüllungsbehälters (108), die folgenden Schritte umfassend:

    a) Bereitstellen eines Basisbehälters (42) mit einer ersten Seitennaht (58) an einer Seitenwand (42a, 50), die sich um eine Längsachse erstreckt, um ein Innenvolumen zu definieren, und einem Boden (52), der an die Seitenwand (42a, 50) befestigt ist;

    b) Bereitstellen der Seitenwand (42a, 50) des Basisbehälters (42) mit Verbindungselementen um eine Außenperipherie der Seitenwand (42a, 50) herum, eine Fläche entlang der ersten Seitennahmt (58) ausgenommen; und

    c) Bereitstellen einer Umhüllung (98) mit einer zweiten Seitennaht (104) über die Seitenwand (42a, 50) des Basisbehälters (42), sodass die erste Seitennaht (58) des Basisbehälters (42) und die zweite Seitennaht (104) aufeinander ausgerichtet sind, und sodass die Umhüllung (98) durch die Verbindungselemente an die Außenperipherie der Seitenwand (42a, 50) des Basisbehälters (42) zusammengefügt ist, ausgenommen in einem Bereich entlang der ersten Seitennaht (58), um einen Umhüllungsbehälter (108) mit gleichförmigen Abständen (114) zu definieren, der sich kontinuierlich zwischen der Seitenwand (42a, 50) des Basisbehälters (42) und der Umhüllung (98) erstreckt,

    worin der Schritt b) das Anwenden einer Vielzahl von länglichen mit Abständen angeordneten adhäsiven Perlen (74, 94) enthält, die von der Außenperipherie der Seitenwand (42a, 50) des Basisbehälters (42) nach außen herausragen.
     
    8. Verfahren nach Anspruch 7, worin die adhäsiven Perlen (74, 94) mit erhitztem Klebstoff angebracht werden.
     
    9. Verfahren nach Anspruch 7, worin die adhäsiven Perlen (74, 94) im Allgemeinen parallel zueinander geformt sind.
     
    10. Verfahren nach Anspruch 7, worin Schritt c) das Überlappen gegenüberliegender Seitenkanten (98a, 98b) der Umhüllung (98) enthält und das Zusammenschließen der überlappenden Seitenkanten (98a, 98b), um die zweite Seitennaht (104) zu formen.
     
    11. Verfahren nach Anspruch 7, worin die in Schritt c) angebrachten Verbindungselemente entlang der gesamten Länge der ersten Seitennaht (58) fehlen.
     
    12. Verfahren nach Anspruch 8, worin die Seitenwand (42a, 50) des Basisbehälters (42) und die Umhüllung (98) zusammengefügt werden, sobald der erhitzte Klebstoff abgekühlt ist.
     
    13. Vorrichtung (10) zum Erzeugen eines Umhüllungsbehälters (108), Folgendes umfassend:

    eine erste mechanisierte Anordnung, konfiguriert zum Bereitstellen eines Basisbehälters (42) mit einer Seitenwand (42a, 50) und einem daran befestigten Boden, wobei die Seitenwand (42a, 50) mit einer ersten Seitennaht (58) geformt ist, die sich davon longitudinal erstreckt; und

    eine zweite mechanisierte Anordnung, mit der ersten mechanisierten Anordnung verbunden und dazu konfiguriert, einen Satz von Verbindungselementen an der Seitenwand (42a, 50) des Basisbehälters (42) bereitzustellen, ausgenommen entlang einer Länge der ersten Seitennaht (58), und dazu konfiguriert, eine Umhüllung (98) mit einer zweiten Seitennaht (104) um die Seitenwand (42a, 50) des Basisbehälters (42) herum zu positionieren, sodass die Seitenwand (42a, 50) des Basisbehälters (42) an die Umhüllung gefügt wird, ausgenommen entlang der Länge der ersten Seitennaht (58), und sodass die ersten und zweiten Seitennähte (58, 104) so ausgerichtet sind, dass ein Umhüllungsbehälter (108) geformt wird mit einer gleichförmigen Luftlücke (114), die sich kontinuierlich zwischen der Seitenwand (42a, 50) des Basisbehälters (42) und der Umhüllung (98) erstreckt,

    worin die zweite mechanisierte Anordnung einen Satz von Drehtürmen (12, 66, 84) enthält mit Dornen (18, 68, 86) zum Aufnehmen der Basisbehälter (42) und Übertragen der Basisbehälter (42) an Stationen (20, 22, 26, 28, 30, 32, 34, 36, 38, 40), an denen die Verbindungselemente angebracht werden und an denen die Umhüllung (98) an die Seitenwand (42a, 50) des Basisbehälter (42) gefügt wird,

    worin die Verbindungselemente aus einer Vielzahl von länglichen adhäsiven Perlen (74, 94) mit Abständen geformt sind, die von der Außenperipherie der Seitenwand (42a, 50) des Basisbehälters (42) nach außen herausragen.


     
    14. Vorrichtung (10) nach Anspruch 13, worin die Stationen (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) eine erste Station enthalten, an der ein erster Klebstoff an die Seitenwand (42a, 50) des Behälters (42) angebracht wird, und eine zweite Station, an der ein zweiter Klebstoff an die Seitenwand (42a, 50) mit Abstand vom ersten Klebstoff angebracht wird.
     
    15. Vorrichtung (10) nach Anspruch 14, worin die ersten und zweiten Klebstoffe durch radiale Klebstoffapplikatoren (75, 92) in der Form eines erhitzten Klebstoffs angebracht werden.
     
    16. Vorrichtung (19) nach Anspruch 15, worin die Stationen (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) außerdem eine dritte Station enthalten, an der die Umhüllung (98) über die Seitenwand (42a, 50) gewickelt ist und daran angefügt ist durch die ersten und zweiten Klebstoffe, um den Umhüllungsbehälter (108) zu formen.
     


    Revendications

    1. Récipient formant enveloppe d'emballage (108) comprenant :

    un récipient de base (42) qui comporte une première jointure latérale (58) sur une paroi latérale (42a, 50) qui s'étend autour d'un axe longitudinal de manière à définir un volume interne, et un fond (52) qui est connecté à la paroi latérale (42a, 50) ;

    une enveloppe d'emballage (98) qui est positionnée au-dessus de la paroi latérale (42a, 50) du récipient de base (42), l'enveloppe d'emballage (98) comportant une seconde jointure latérale (104) qui est alignée longitudinalement par rapport à la première jointure latérale (58) ; et

    des éléments de connexion qui sont positionnés entre la paroi latérale (42a, 50) du récipient de base (42) et l'enveloppe d'emballage (98) et qui joignent ensemble la paroi latérale (42a, 50) du récipient de base (42) et l'enveloppe d'emballage (98) à l'exception d'une zone le long des première et seconde jointures latérales alignées (58, 104) de manière à définir un espacement uniforme qui s'étend en continu entre la paroi latérale (42a, 50) et l'enveloppe d'emballage (98) en formant un espace d'air (114) entre elles ; dans lequel :
    les éléments de connexion sont formés à partir d'éléments adhésifs (74, 94) ; et dans lequel :
    les éléments adhésifs sont formés en tant que perles allongées espacées les unes des autres (74, 94) qui font saillie vers l'extérieur depuis une périphérie externe de la paroi latérale (42a, 50).


     
    2. Récipient formant enveloppe d'emballage (108) selon la revendication 1, dans lequel les éléments adhésifs (74, 94) sont formés à partir de colle chauffée.
     
    3. Récipient formant enveloppe d'emballage (108) selon la revendication 1, dans lequel les perles (74, 94) s'étendent de façon générale parallèlement les unes aux autres.
     
    4. Récipient formant enveloppe d'emballage (108) selon la revendication 1, dans lequel l'enveloppe d'emballage (98) s'étend complètement autour de la paroi latérale (42a, 50) du récipient de base (42).
     
    5. Récipient formant enveloppe d'emballage (108) selon la revendication 1, dans lequel l'enveloppe d'emballage (98) s'étend entre un bord supérieur du récipient de base (42) et un bord inférieur du récipient de base (42).
     
    6. Récipient formant enveloppe d'emballage (108) selon la revendication 1, dans lequel les éléments de connexion sont absents le long de longueurs complètes des première et seconde jointures latérales (58, 104).
     
    7. Procédé pour fabriquer un récipient formant enveloppe d'emballage (108), comprenant les étapes constituées par :

    a) la fourniture d'un récipient de base (42) qui comporte une première jointure latérale (58) sur une paroi latérale (42a, 50) qui s'étend autour d'un axe longitudinal de manière à définir un volume interne, et un fond qui est fixé fermement à la paroi latérale (42a, 50) ;

    b) le fait de munir la paroi latérale (42a, 50) du récipient de base (42) d'éléments de connexion autour d'une périphérie externe de la paroi latérale (42a, 50) à l'exception d'une zone le long de la première jointure latérale (58) ; et

    c) la fourniture d'une enveloppe d'emballage (98) qui comporte une seconde jointure latérale (104) au-dessus de la paroi latérale (42a, 50) du récipient de base (42) de telle sorte que la première jointure latérale (58) du récipient de base (42) et la seconde jointure latérale (104) soient alignées l'une par rapport à l'autre, et de telle sorte que l'enveloppe d'emballage (98) soit jointe au moyen des éléments de connexion sur la périphérie externe de la paroi latérale (42a, 50) du récipient de base (42) à l'exception d'au niveau d'une zone le long de la première jointure latérale (58), de manière à définir un récipient formant enveloppe d'emballage (108) qui comporte un espacement uniforme (114) qui s'étend en continu entre la paroi latérale (42a, 50) du récipient de base (42) et l'enveloppe d'emballage (98) ; dans lequel :

    l'étape b) inclut l'application d'une pluralité de perles adhésives allongées espacées les unes des autres (74, 94) qui font saillie vers l'extérieur depuis la périphérie externe de la paroi latérale (42a, 50) du récipient de base (42).
     
    8. Procédé selon la revendication 7, dans lequel les perles adhésives (74, 94) sont appliquées à l'aide de colle chauffée.
     
    9. Procédé selon la revendication 7, dans lequel les perles adhésives (74, 94) sont formées de façon générale parallèlement les unes aux autres.
     
    10. Procédé selon la revendication 7, dans lequel l'étape c) inclut la mise en chevauchement de bords latéraux opposés (98a, 98b) de l'enveloppe d'emballage (98) et le scellement ensemble et de façon hermétique des bords latéraux mis en chevauchement (98a, 98b), de manière à former la seconde jointure latérale (104).
     
    11. Procédé selon la revendication 7, dans lequel les éléments de connexion qui sont appliqués au niveau de l'étape c) sont absents le long de la longueur complète de la première jointure latérale (58).
     
    12. Procédé selon la revendication 8, dans lequel la paroi latérale (42a, 50) du récipient de base (42) et l'enveloppe d'emballage (98) sont jointes ensemble une fois que la colle chauffée a refroidi.
     
    13. Appareil (10) pour fabriquer un récipient formant enveloppe d'emballage (108), comprenant :

    un premier agencement mécanisé qui est configuré de manière à ce qu'il constitue un récipient de base (42) qui comporte une paroi latérale (42a, 50) et un fond (52) qui lui est connecté, la paroi latérale (42a, 50) étant formée de manière à ce qu'elle comporte une première jointure latérale (58) qui s'étend longitudinalement le long d'elle-même ; et

    un second agencement mécanisé qui est connecté au premier agencement mécanisé et qui est configuré de manière à ce qu'il constitue un jeu d'éléments de connexion sur la paroi latérale (42a, 50) du récipient de base (42) à l'exception de le long d'une longueur de la première jointure latérale (58), et qui est configuré de manière à ce qu'il positionne une enveloppe d'emballage (98) qui comporte une seconde jointure latérale (104) autour de la paroi latérale (42a, 50) du récipient de base (42), de telle sorte que la paroi latérale (42a, 50) du récipient de base (42) soit jointe à l'enveloppe d'emballage (98), à l'exception de le long de la longueur de la première jointure latérale (58), et de telle sorte que les première et seconde jointures latérales (58, 104) soient alignées de manière à définir un récipient formant enveloppe d'emballage (108) qui comporte un espace d'air uniforme (114) qui s'étend en continu entre la paroi latérale (42a, 50) du récipient de base (42) et l'enveloppe d'emballage (98) ; dans lequel :
    le second agencement mécanisé inclut un jeu de tours rotatifs (12, 66, 84) qui comportent des mandrins (18, 68, 86) pour recevoir les récipients de base (42) et pour transférer les récipients de base (42) jusqu'à des stations (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) au niveau desquelles les éléments de connexion sont appliqués, et au niveau desquelles l'enveloppe d'emballage (98) est jointe sur la paroi latérale (42a, 50) du récipient de base (42) ; et dans lequel :
    les éléments de connexion sont formés à partir d'une pluralité de perles adhésives allongées espacées les unes des autres (74, 94) qui font saillie vers l'extérieur depuis la périphérie externe de la paroi latérale (42a, 50) du récipient de base (42).


     
    14. Appareil (10) selon la revendication 13, dans lequel les stations (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) incluent une première station au niveau de laquelle un premier adhésif est appliqué sur la paroi latérale (42a, 50) du récipient de base (42) et une deuxième station au niveau de laquelle un second adhésif est appliqué sur la paroi latérale (42a, 50) de sorte qu'il soit espacé du premier adhésif.
     
    15. Appareil (10) selon la revendication 14, dans lequel les premier et second adhésifs sont appliqués à l'aide de moyens d'application de colle radiaux (75, 92) sous la forme d'une colle chauffée.
     
    16. Appareil (10) selon la revendication 15, dans lequel les stations (20, 22, 26, 28, 30, 32, 34, 36, 38, 40) incluent en outre une troisième station au niveau de laquelle l'enveloppe d'emballage (98) est appliquée par enroulement enveloppant au-dessus de la paroi latérale (42a, 50) du récipient de base (42) et lui est jointe au moyen des premier et second adhésifs de manière à former le récipient formant enveloppe d'emballage (108).
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description