WO2012027211A1 - Découpe de paroi latérale pour éliminer sensiblement la torsion dans contenants profonds - Google Patents

Découpe de paroi latérale pour éliminer sensiblement la torsion dans contenants profonds Download PDF

Info

Publication number
WO2012027211A1
WO2012027211A1 PCT/US2011/048370 US2011048370W WO2012027211A1 WO 2012027211 A1 WO2012027211 A1 WO 2012027211A1 US 2011048370 W US2011048370 W US 2011048370W WO 2012027211 A1 WO2012027211 A1 WO 2012027211A1
Authority
WO
WIPO (PCT)
Prior art keywords
lower edge
improvement
relief formations
cup
sidewall
Prior art date
Application number
PCT/US2011/048370
Other languages
English (en)
Inventor
James M. Lemon
Original Assignee
Paper Machinery Corporation
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 Paper Machinery Corporation filed Critical Paper Machinery Corporation
Publication of WO2012027211A1 publication Critical patent/WO2012027211A1/fr

Links

Classifications

    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
    • B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
    • B65D3/14—Discs fitting within container end and secured by bending, rolling, or folding operations

Definitions

  • the present disclosure relates to the manufacture of two piece, seamed paper cups coated with thermoplastic, and more particularly, pertains to the manufacture of cups having a deep bottom formation.
  • 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 workstations where numerous cup forming procedures occur.
  • a circular bottom blank is cutout at one workstation and attached to the end of a mandrel by a vacuum applied through the mandrel. During this procedure, the outside edge or lip of the bottom blank is folded downwardly.
  • a sidewall blank is wrapped around the mandrel. The sidewall blank is heated and sealed along an overlapped side seam which runs generally longitudinally along the side of the cup.
  • a paperboard is coated with a thermoplastic material such as polyethylene, polypropylene or a solid plastic sheet can be used, so the bottom and sidewall blanks may be heated and sealed together.
  • the sidewall blank includes a flap extending beyond the lip of the bottom blank, and this flap is bent over the lip.
  • the flap is pressed against the lip from an inside recessed area of the bottom of the cup.
  • a bottom seal is formed and the cup is provided with a sturdy bottom region having a recessed area.
  • workstations 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.
  • Certain cups are manufactured according to the above exemplary procedure with a deep bottom formation in which the recessed area is defined by a bottom which is raised and spaced typically about l/2"-5/8" from the lowermost peripheral edge that supports the cup.
  • the external peripheral surface of the deep bottom formation on the cup results in an undesirable twist or wrinkle effect (as depicted at T in the cup C of Fig. 1 ) which detracts from the appearance of the cup and can result in potential leakage problems.
  • the present disclosure relates to a two piece cup formed by a sidewall blank having an upper edge, a lower edge, a pair of opposite side edges, a front surface and a back surface with the opposite side edges overlapped and sealed along an overlapped side seam to a bottom blank along a lower edge of the sidewall blank.
  • the invention is improved wherein an area at or adjacent the lower edge of the sidewall blank is provided with relief formations which extend generally upwardly and perpendicularly relative to the lower edge.
  • the relief formations preferably take the form of score lines, slits, notches or other suitable constructions which are generally equally spaced from one another and are of equal length relative to the sidewall blank lower edge.
  • Fig. 1 is a front view of a prior art formed two piece cup exhibiting a twist on the external surface of the lowermost region of the cup;
  • Fig. 2 is a perspective view of a formed two piece cup constructed using the sidewall blank of the present invention
  • FIG. 3 is a schematic plan view of an exemplary cup making machine for making a cup with the sidewall blank of the present invention
  • Fig. 4 is a perspective representation of a bottom blank and a sidewall blank used in forming a cup shown in Fig. 2;
  • Fig. 5 is a sectional view showing the area at which the sidewall blank is joined to the bottom blanks
  • Fig. 6 is a plan view of the sidewall blank of Fig. 4 illustrating one embodiment of the present invention.
  • Fig. 7 is a plan view of a second embodiment of the sidewall blank used to form the cup of Fig. 2;
  • Fig. 8 is a plan view of a third embodiment of the sidewall blank used to form the cup of Fig. 2.
  • Mandrel turret 22 which cooperates with a transfer turret 24 and a rimming turret 26.
  • Mandrel turret 22 includes a plurality of mandrels 28 that are rotated in a stepwise or indexing manner between a surrounding workstations. For example, a bottom blank may be applied to a given mandrel 28 at a bottom blank maker workstation 30 and then rotated to a bottom reformer station 32.
  • the mandrel 28 is rotated into cooperation with the transfer turret 24 which receives sidewall blanks from a hopper 34 and rotates the sidewall blank into cooperation with an adjacent mandrel 28.
  • the sidewall blank is then folded about the mandrel over the bottom blank, heated and sealed along a side seam where the opposite side edges of the sidewall blank overlap.
  • the bottom blank and the sidewall blank are rotated to a bottom heat station 36.
  • mandrel turret 22 indexes the subject mandrel 28 into registration with a roller incurl workstation 38 where a portion of the sidewall blank, i.e. a sidewall 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 40 where the sidewall blank flap and the bottom blank lip are pressed against the lower region of the sidewall blank to form a bottom seal.
  • the seal is transferred to rimming turret 26, rotated to a lube station 42 and then rotated to a rimming precurl station 44 where the upper lip of the sidewall is curled outwardly. From that station, the cup is indexed to a rimming finish curl station 46 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 48 and then to a cup blow off station 54 for removal of the finished cup.
  • an exemplary cup 52 includes an upper region 54 having a curled rim 56 and a bottom region 58.
  • Cup 52 is made from a flexible sheet member or sidewall blank 60 of generally trapezoidal shape which is wrapped around a circular bottom blank 62 disposed generally transverse thereto.
  • Sidewall blank 60 has front and back surfaces as well as opposite side edges 60a, 60b, an upper curved edge 60c and a lower curved edge 60d.
  • Bottom blank 62 is typically bent or folded over in proximity to its outer edge to form a lip 64.
  • the sidewall blank 60 is located with respect to bottom blank 62 so that a flap portion 66 having a bottom edge 65 extends beyond lip 64. Flap portion 66 is bent or folded around lip 65 so lip 64 may be squeezed between flap portions 66 and the lower region of sidewall blank 60.
  • a typical cup 52 is made from paperboard blanks having a thermoplastic coating such as polyethylene.
  • the thermoplastic material permits heating and sealing of adjacent components. For example, when sidewall blank 60 is wrapped around bottom blank 62, adjacent overlapped edges 60a, 60b are heated and pressed together along an overlapped side seam 68. Similarly, lip 64, flap portion 66 and lower region 67 of sidewall blank 60 may be heated and pressed together at a bottom finish station 40 to form a strong, leak-proof bottom region 58.
  • a recessed area 70 is created in the bottom of cup 52 on an opposite side of bottom blank 62 from the main container region of cup 52.
  • Recessed area 70 permits insertion of a tool to press lip 64 and flap portion 66 to the lower region 67 of sidewall blank 60 and form the bottom seal.
  • the sidewall blank 60 is provided with relief formations at selected locations relative to the lower edge so as to overcome the twist or wrinkle effect discussed in the Background of the Invention, and improve the quality of the bottom region of the cup 52.
  • the sidewall blank 60 is formed on front and back surfaces with a series of score lines 72 that extend upwardly and perpendicularly from the lower edge 60d.
  • the score lines 72 are equally spaced from one another and are of equal length.
  • Fig. 7 shows another embodiment of sidewall blank 60 wherein a series of slits 74 are formed therethrough adjacent the lower edge 60d. Again, the slits 74 extend upwardly and perpendicularly relative to the lower edge 60d, are preferably equally spaced from one another and are of equal length.
  • Fig. 8 shows a further embodiment of the sidewall blank 60 wherein a series of inverted V-shaped notches 76 is formed along the lower edge 60d.
  • the notches 76 extend upwardly from the lower edge 60d, are preferably of equal size and preferably are equally spaced from one another.
  • the score lines 72, slits 74 and notches 76 collectively define relief formations at or adjacent the lower edge 60d of each sidewall blank 60. Such relief formations generally extend continuously across the length of the lower edge 60d.
  • deep bottom cups such as 52, Fig. 2 are formed using the sidewall blanks 60 with the relief formations formed along the lower edges 60d as described above, the undesirable twist or wrinkle effect is eliminated, and a smooth aesthetically pleasing external peripheral surface is formed in the lowermost region of the cup.
  • the manufacture of such deep bottom cups using the sidewall blank 60 with such relief formations 72, 74, 76 has also been found to be beneficial in preventing leaks in the bottom of the cups.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention porte sur une découpe de paroi latérale formant coupelle (60) qui comprend un morceau de matériau de feuille souple ayant un bord supérieur (60c), un bord inférieur (60d) et une paire de bords latéraux opposés (60a, 60d) dont une zone, au niveau du bord inférieur de la découpe de paroi latérale ou adjacente à celui-ci, est pourvue de formations en relief (72, 74, 76) qui s'étendent généralement vers le haut et perpendiculairement par rapport au bord inférieur. Les formations en relief prennent, de préférence, la forme de pliures (72), de fentes (74), d'encoches (76) ou d'autres constructions appropriées qui sont généralement espacées les unes des autres et de longueur égale par rapport au bord inférieur de découpe de la paroi latérale.
PCT/US2011/048370 2010-08-23 2011-08-19 Découpe de paroi latérale pour éliminer sensiblement la torsion dans contenants profonds WO2012027211A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37600110P 2010-08-23 2010-08-23
US61/376,001 2010-08-23
US13/212,690 US20120043374A1 (en) 2010-08-23 2011-08-18 Sidewall blank for substantially eliminating twist in deep bottom containers
US13/212,690 2011-08-18

Publications (1)

Publication Number Publication Date
WO2012027211A1 true WO2012027211A1 (fr) 2012-03-01

Family

ID=44513208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/048370 WO2012027211A1 (fr) 2010-08-23 2011-08-19 Découpe de paroi latérale pour éliminer sensiblement la torsion dans contenants profonds

Country Status (2)

Country Link
US (1) US20120043374A1 (fr)
WO (1) WO2012027211A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2720582A4 (fr) 2011-06-17 2014-12-24 Berry Plastics Corp Manchon isolé pour tasse
WO2012174422A2 (fr) 2011-06-17 2012-12-20 Berry Plastics Corporation Récipient isolé à bord moulé
EP3272665A1 (fr) 2011-06-17 2018-01-24 Berry Plastics Corporation Contenant isolé
WO2012174568A2 (fr) 2011-06-17 2012-12-20 Berry Plastics Corporation Procédé pour former un contenant isolé présentant une illustration
BR112014004460A2 (pt) 2011-08-31 2017-03-21 Berry Plastics Corp material polimérico para um recipiente isolado
CA2879564A1 (fr) 2012-08-07 2014-02-13 Berry Plastics Corporation Procede et machine de formation de coupe
BR112015009329A2 (pt) 2012-10-26 2017-07-04 Berry Plastics Corp material polimérico para um recipiente isolado
AR093944A1 (es) * 2012-12-14 2015-07-01 Berry Plastics Corp Troquelado para envase
AR093943A1 (es) 2012-12-14 2015-07-01 Berry Plastics Corp Reborde de un envase termico
US9840049B2 (en) 2012-12-14 2017-12-12 Berry Plastics Corporation Cellular polymeric material
US9957365B2 (en) 2013-03-13 2018-05-01 Berry Plastics Corporation Cellular polymeric material
JP2016518289A (ja) 2013-03-14 2016-06-23 ベリー プラスチックス コーポレイション 容器
US9394074B2 (en) 2013-07-29 2016-07-19 Huhtamaki, Inc. Perforated top curl for plastic container
CN105592997A (zh) 2013-08-16 2016-05-18 比瑞塑料公司 用于绝缘容器的聚合物材料
US9758655B2 (en) 2014-09-18 2017-09-12 Berry Plastics Corporation Cellular polymeric material
WO2016049049A1 (fr) 2014-09-23 2016-03-31 Dart Container Corporation Récipient isolé et procédés de fabrication et d'assemblage
US10513589B2 (en) 2015-01-23 2019-12-24 Berry Plastics Corporation Polymeric material for an insulated container
EP3663216A4 (fr) * 2017-08-03 2021-04-07 Tokan Kogyo Co., Ltd. Corps cylindrique, récipient et procédé de fabrication d'un récipient
US11091311B2 (en) 2017-08-08 2021-08-17 Berry Global, Inc. Insulated container and method of making the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB393640A (en) * 1930-12-06 1933-06-07 Gibson Patent Containers Ltd Improvements in and relating to tubular boxes and cartons, pails and similar tubularcontainers
US1969030A (en) * 1931-12-16 1934-08-07 Guardian Trust Company Container
US2007191A (en) * 1932-03-23 1935-07-09 Iowa Fiber Box Company Nesting paper can
US2053678A (en) * 1932-03-24 1936-09-08 President And Directors Of The Container
GB610683A (en) * 1946-04-15 1948-10-19 Caldecot Press Ltd Improvements in or relating to cartons and blanks therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB393640A (en) * 1930-12-06 1933-06-07 Gibson Patent Containers Ltd Improvements in and relating to tubular boxes and cartons, pails and similar tubularcontainers
US1969030A (en) * 1931-12-16 1934-08-07 Guardian Trust Company Container
US2007191A (en) * 1932-03-23 1935-07-09 Iowa Fiber Box Company Nesting paper can
US2053678A (en) * 1932-03-24 1936-09-08 President And Directors Of The Container
GB610683A (en) * 1946-04-15 1948-10-19 Caldecot Press Ltd Improvements in or relating to cartons and blanks therefor

Also Published As

Publication number Publication date
US20120043374A1 (en) 2012-02-23

Similar Documents

Publication Publication Date Title
US20120043374A1 (en) Sidewall blank for substantially eliminating twist in deep bottom containers
EP2049325B1 (fr) Gobelet en papier en deux parties
US11497330B2 (en) Paper-based container lids and methods for making the same
US10398242B2 (en) Overwrap container, method of and apparatus for producing same
US20210015281A1 (en) Process and apparatus for forming overwrap container using clamping and reforming
US20060289609A1 (en) Polymeric container
US7686753B2 (en) Bottom finishing station components for a cup making machine
US8387857B2 (en) Outer sleeve for a double walled cup and a process for manufacturing same
JP7411685B2 (ja) 使い捨て容器の紙蓋の製造方法及び使い捨て容器の紙蓋
US10773840B2 (en) Method and apparatus for assembling a double-walled container
EP2658786B1 (fr) Gobelet en papier amélioré
WO2010006272A1 (fr) Coupelle isolante ayant des jonctions de largeur minimale
JP2008501588A (ja) ラミネート材料から作られる容器、ブランク及び方法
CN108455004B (zh) 包装材料和提供包装材料的方法
CA2857851C (fr) Bord roule superieur perfore pour contenant de plastique
WO2022161044A1 (fr) Appareil de fabrication de récipients en papier
CA3053066C (fr) Procede et appareil pour l`assemblage d`un recipient a double paroi
JP5515441B2 (ja) 紙製容器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11749063

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11749063

Country of ref document: EP

Kind code of ref document: A1