EP3530581A1 - Becher mit erhöhter festigkeit - Google Patents

Becher mit erhöhter festigkeit Download PDF

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Publication number
EP3530581A1
EP3530581A1 EP18158699.1A EP18158699A EP3530581A1 EP 3530581 A1 EP3530581 A1 EP 3530581A1 EP 18158699 A EP18158699 A EP 18158699A EP 3530581 A1 EP3530581 A1 EP 3530581A1
Authority
EP
European Patent Office
Prior art keywords
cup
wall
curve
curved wall
symmetry axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18158699.1A
Other languages
English (en)
French (fr)
Inventor
Leszek Lugin
Magdalena Bednarek
Rafal Maczka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amhil Europa Sp zoo
Original Assignee
Amhil Europa Sp zoo
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 Amhil Europa Sp zoo filed Critical Amhil Europa Sp zoo
Publication of EP3530581A1 publication Critical patent/EP3530581A1/de
Withdrawn legal-status Critical Current

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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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/265—Drinking cups

Definitions

  • the invention concerns a cup with increased compressive strength.
  • Patent description ref. US2015008255 presents a deform-proof cup with lateral-oriented fibers. Thanks to these lateral fibers and a rim in the upper part of the cup, it can withstand deformations when held in hand.
  • the invention is applied in cups of different heights, it reinforces its structure, reduces its weight and reduces its production costs.
  • the cup can be made of polyethylene, polypropylene or polyethene terephtalate.
  • Patent description ref. US5449089 presents a bell fountain cup, containing a lower surface and side walls, which extend upwards.
  • the side walls have a lower part and an upper part which creates an opening in the cup, and a radially widening part situated between the upper and lower parts.
  • the maximum diameter of the broadening part is larger than the diameter of the lower surface and larger than the diameter of the upper opening.
  • the side wall is approximately of the same thickness in the lower part, in the middle, broadening part, and at least in a fragment of the upper part.
  • the side walls are approximately 0.020 inch thick +/- c.a. 0.005 in the lower, middle parts and in a fragment of the upper part.
  • the cup can be made of PET.
  • Patent description ref. DE202007016006 presents a container for storing liquids and pastes, and particularly dairy products, with its inner limiting surface and its outer, printable shell. At least one cavity, pointing inwards in a radial manner, is situated on the outer surface of the lower part of the vessel.
  • the inner surface can be made of polystyrene or polypropylene or PET.
  • the increased-strength cup according to the invention is made of plastic, selected from polyethene terephtalate (PET), recycled polyethene terephtalate (rPET), polypropylene (PP) or polylactic acid (PLA).
  • PET polyethene terephtalate
  • rPET recycled polyethene terephtalate
  • PP polypropylene
  • PLA polylactic acid
  • the cup has a round bottom and a curved wall.
  • the curved wall of the cup is created by rotating a tangent-shaped curve forming the lateral surface of the cup around the vertical axis of the cup, whereas the diameter of the curved wall of the cup increases in the direction from the bottom of the cup towards the drinking edge.
  • the cup's tangent wall curve includes at least four, permanently connected and inseparable sections.
  • the cup's wall curve In the lower, straight section connecting the bottom and the wall of the cup, the cup's wall curve is inclined at 3 to 6 degrees. In another section, the cup's wall curve is concave in reference to the vertical cup symmetry axis. In another section, the cup's wall curve is convex in reference to the cup symmetry axis. The last, straight section of the cup's wall curve is inclined at 3 to 6 degrees and finished with a reinforcing outward fold, which serves as a drinking edge. In a beneficial embodiment of the invention, the upper surface of the reinforcing outward fold is perpendicular to the cup symmetry axis, creating a flat edge surface, as to enable product packing by wrapping foil or the application of aluminum lid on the top opening.
  • the bottom of the cup is inseparably connected to the cup's wall. In a beneficial embodiment of the invention, the bottom is concave and includes a cavity, preferably cylindrical, as to prevent cups from sticking, when one of them is inserted into another.
  • the advantages of the increased-strength cup according to the invention is its high compressive strength in the direction of the vertical axis, and a reduction in the amount of raw material used, as well as elimination of the problem of jammed cups, when one of them is inserted into another.
  • FIG. 1 presents a view of a 555 ml cup
  • FIG. 2 presents a longitudinal section of a 555 ml cup
  • Fig. 3 and Fig. 4 present, respectively, zooms on the longitudinal section of the drinking edge and the bottom of a 555 ml cup, when one cup is placed in another
  • Fig. 5 presents a 243 ml cup
  • Fig. 6 presents the shape of a classic-shaped 550 ml cup, which was used in a comparative study of compressive strengths in Example 3.
  • a polyethene terephtalate cup was made by thermoforming.
  • the cup has a round bottom 1 and a curved wall.
  • the curved wall of the cup is created by rotating the tangent-shaped curve 2, forming the lateral surface, around the vertical axis 4 of the cup, whereas the diameter of the curved wall of the cup increases in the direction from the bottom 1 of the cup towards the drinking edge 3.
  • the cup's tangent wall curve 2 includes at least four, permanently connected and inseparable sections. In the lower, straight section 5 connecting the bottom 1 and the wall of the cup, the cup's wall curve 2 is inclined at 4 degrees.
  • the cup's wall curve 2 is concave in reference to the vertical cup symmetry axis 4, whereas the radius of the curve is 185 mm.
  • the cup's wall curve 2 is convex in reference to the cup symmetry axis 4, whereas the radius of the curve is 185 mm.
  • the last, straight section 8 of the cup's wall curve 2 is inclined at 4 degrees and finished with a reinforcing outward fold 9, which serves as a drinking edge 3.
  • the upper surface of the reinforcing outward fold is perpendicular to the cup symmetry axis 4, creating a flat edge surface, as to enable product packing by wrapping foil or the application of aluminum lid on the top opening.
  • the bottom 1 of the cup is inseparably connected to the cup's wall.
  • the bottom 1 is concave and includes a cavity 10, preferably cylindrical, as to prevent cups from sticking when one of them is inserted into another.
  • the cup is 136.7 mm high, the external diameter of the fold is 94.7 mm, the diameter of the bottom 1 is 58 mm, and the diameter of the cavity 10 is 38 m.
  • the height of the cavity is 9.4 mm.
  • the volume of the cup is 555 ⁇ 10 ml.
  • a polyethene terephtalate cup was made by thermoforming.
  • the cup has a round bottom 1 and a curved wall.
  • the curved wall of the cup is created by rotating the tangent-shaped curve 2, forming the lateral surface, around the vertical axis 4 of the cup, whereas the diameter of the curved wall of the cup increases in the direction from the bottom 1 of the cup towards the drinking edge 3.
  • the cup's tangent wall curve 2 includes at least four, permanently connected and inseparable sections. In the lower, straight section 5 connecting the bottom 1 and the wall of the cup, the cup's wall curve 2 is inclined at 4 degrees.
  • the cup's wall curve 2 is concave in reference to the vertical cup symmetry axis 4, whereas the radius of the curve is 120 mm.
  • the cup's wall curve 2 is convex in reference to the cup symmetry axis 4, whereas the radius of the curve is 200 mm.
  • the last, straight section 8 of the cup's wall curve 2 is inclined at 4 degrees and finished with a reinforcing outward fold 9, which serves as a drinking edge 3.
  • the upper surface of the reinforcing outward fold is perpendicular to the cup symmetry axis 4, creating a flat edge surface, as to enable product packing by wrapping foil or the application of aluminum lid on the top opening.
  • the bottom 1 of the cup is inseparably connected to the cup's wall.
  • the bottom 1 is concave and includes a cavity 10, preferably cylindrical, as to prevent cups from sticking when one of them is inserted into another.
  • the cup is 83.2 mm high, the external diameter of the fold is 78.2 mm, the diameter of the bottom 1 is 50 mm, and the diameter of the cavity 10 is 31 m.
  • the height of the cavity is 8 mm.
  • the volume of the cup is 243 ⁇ 10 ml.
  • Example 1 The analysis was carried out for the cup described in Example 1 of 555 ml, and for two classic cups of 550 and 650 ml, both with straight walls.
  • the test was carried out on a sample of 50 cups of each type. Cups were pressed on Imada MX-500N until a first permanent deformation was recorded.
  • Table 1 contains the results of the compressive test in the vertical axis of the cups according to the invention, with curved walls (a), and cups with straight walls, of 650 (b) and 550 (c) ml. The results have been averaged out for the analysis of 50 cups of each type ⁇ standard deviation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP18158699.1A 2018-02-24 2018-02-26 Becher mit erhöhter festigkeit Withdrawn EP3530581A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL42064518 2018-02-24

Publications (1)

Publication Number Publication Date
EP3530581A1 true EP3530581A1 (de) 2019-08-28

Family

ID=63108389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18158699.1A Withdrawn EP3530581A1 (de) 2018-02-24 2018-02-26 Becher mit erhöhter festigkeit

Country Status (1)

Country Link
EP (1) EP3530581A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441192A (en) * 1967-05-17 1969-04-29 American Can Co Thermoformed plastic cup with reinforced side wall
US3456864A (en) * 1967-11-29 1969-07-22 Dow Chemical Co Disposable cups and handles
GB2103569A (en) * 1981-06-29 1983-02-23 Bellaplast Gmbh Packaging container
EP1157806A1 (de) * 2000-05-26 2001-11-28 Fort James Corporation Spritzblasgeformter Einwegbehälter und Verfahren zu seiner Herstellung
US20100247830A1 (en) * 2009-03-24 2010-09-30 Pactiv Corporation Blank for a container having a rolled rim, and method of making the same
GB2501455A (en) * 2011-09-22 2013-10-30 Kobusch Uk Ltd A Thermoformed Open-Topped Container.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441192A (en) * 1967-05-17 1969-04-29 American Can Co Thermoformed plastic cup with reinforced side wall
US3456864A (en) * 1967-11-29 1969-07-22 Dow Chemical Co Disposable cups and handles
GB2103569A (en) * 1981-06-29 1983-02-23 Bellaplast Gmbh Packaging container
EP1157806A1 (de) * 2000-05-26 2001-11-28 Fort James Corporation Spritzblasgeformter Einwegbehälter und Verfahren zu seiner Herstellung
US20100247830A1 (en) * 2009-03-24 2010-09-30 Pactiv Corporation Blank for a container having a rolled rim, and method of making the same
GB2501455A (en) * 2011-09-22 2013-10-30 Kobusch Uk Ltd A Thermoformed Open-Topped Container.

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