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EP0808277B1 - Komprimierbares und dehnbares hohles element - Google Patents

Komprimierbares und dehnbares hohles element Download PDF

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Publication number
EP0808277B1
EP0808277B1 EP95928525A EP95928525A EP0808277B1 EP 0808277 B1 EP0808277 B1 EP 0808277B1 EP 95928525 A EP95928525 A EP 95928525A EP 95928525 A EP95928525 A EP 95928525A EP 0808277 B1 EP0808277 B1 EP 0808277B1
Authority
EP
European Patent Office
Prior art keywords
bellows
parts
hollow element
element according
generators
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.)
Expired - Lifetime
Application number
EP95928525A
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English (en)
French (fr)
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EP0808277A1 (de
Inventor
Clair Costanzo
Laurent Freani
Robert Hugel
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.)
Costanzo Clair
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Individual
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Filing date
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Publication of EP0808277A1 publication Critical patent/EP0808277A1/de
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Expired - Lifetime 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
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0292—Foldable bottles

Definitions

  • the subject of the present invention is an element compressible and expandable hollow.
  • Each elementary bellows is generally formed of two opposite flared side wall portions in the direction of the central axis, connected by their small bases thus constituting a playing fold the role of an expandable circular internal hinge radially.
  • the large bases are each connected to the large base of one of the flared parts of a bellows adjacent elementary thus forming circular hinges radially extendable external.
  • the two parts flared constituting an elementary bellows can be the same width or different widths. In the second case, there is an eccentricity during the compression that could cause the bellows to lock.
  • the generator flared parts should preferably have a constant length over the entire circumference, said generator being the line of intersection of the wall of a flared part with a plane parallel to the axis main and perpendicular to this wall, the length of the generator corresponding to the length of this intersection between the small base and the large base of a flared part.
  • this known solution is not optimal in all cases, especially for hollow bodies not having a circular section at any point on the main axis.
  • Patent N ° US 5 310 068 describes a squeezable bottle comprising a central portion (14) pleated "in accordion", as well as a system, main object of protection, making it possible to vary the internal pressure by means of flexible rods.
  • the present invention describes a hollow element compressible and expandable with a side wall extending around the main axis of the element and comprising at least one bellows type structure composed of two parts, the length of the periphery gradually increases from a small common base joining the two parties and constituting an internal peripheral hinge, up to the sections transverse end of the two parts forming the large bases, the length of the generators of these two sections being variable along the periphery of said side wall.
  • the terminal cross sections of the two flared parts are separated from each other, that is to say that the peripheral lines defining the large bases do not meet at any point. of the hollow element.
  • the shape of the peripheral internal "hinge" (small base) joining the two parts of a bellows will be different from the shape of the terminal cross sections (large bases).
  • the small base will have an annular or rounded shape, while the two opposite large bases will have a substantially polygonal shape.
  • annular and polygonal shapes allow easier and more efficient storage of the hollow bodies, each element occupying less space, however, because of the annular shape, preferably substantially circular of the small base, any interference of the polygonal parts of the bellows with neighboring parts, during compression or extension of said bellows.
  • the bellows will advantageously be of the eccentric type, the generator of one of the flared parts being smaller than the generator of the second flared part at each point of the periphery of the bellows.
  • both parties flared can each consist of two portions, the first being arranged in the extension each other and having generators of a substantially constant length, the generators of second portions being curved and of different lengths so as to allow an eccentricity and a corresponding bellows lock, the curvature of the second portion being larger than that of first.
  • a compressible hollow body is thus obtained and extendable provided with a locking zone and of which bending resistance is increased in one plane perpendicular to the main axis, due to the small angle formed by the first portion in this plane. This configuration is particularly interesting for large containers such as jerry cans.
  • the length of the generatrices of the two flared parts varies, along the periphery, from zero, at one point of the side wall, to a maximum value at the opposite point. Thanks to this configuration, a variable compressibility of the hollow element is obtained from one side to the opposite side, the result of which is a curvature of the hollow element in line with the bellows concerned.
  • This embodiment will advantageously be used for pouring tubes of cans or jerry cans.
  • the external walls will preferably comprise at least two contiguous bellows-type structures, the "internal peripheral hinges" (small bases) of which are spaced apart from each other, and the directions of extension of which are opposite, which allows bending of the hollow body, as well as a substantially rectilinear extension and compression in the direction of the central axis.
  • the bellows will advantageously be of the eccentric type, the generator of one of the flared parts being smaller than the generator of the second flared part at each point of the periphery of the bellows.
  • At least part of the "peripheral hinge" constituting the small common base of the two flared parts will preferably be formed by a recess opening towards the outside and constituting a peripheral channel, for example in the form of a U or V.
  • a peripheral channel for example in the form of a U or V.
  • a container 1 blow molded from plastic material such as polyethylene or polyvinyl chloride comprises an upper part 2, a base 3 and a side wall 17 extending around a central axis A.
  • the upper part 2 and the base 3 have the shape of parallelepipeds defined respectively by an upper face 2 "square and sides 2 ', and a bottom 3" square and sides 3'.
  • the upper face 2 " is open to facilitate access to the interior of the container 1 and can be closed by a suitable plug not shown here.
  • the bottom 3" is closed.
  • the side walls 17 are composed of two bellows 17 'and 17 ", each of them comprising a flared upward part 9, 11, and a flared downward part 10 12, linked together by an inner circular hinge zone 7 , 8 U-shaped.
  • This type of hinge zone is known in itself and has been the subject of an American patent application No. US 4,773,458.
  • the upwardly flared part 9 of the upper bellows 17 ′ is connected, at its end opposite to the circular hinge zone 7, to the lowest edge of the sides 2 ′ by an edge 6 forming a square and constituted by a peripheral fold of Wall.
  • the downwardly flared part 10 of the upper bellows 17 ′, and the upwardly flared part 11 of the lower bellows 17 "are connected together by their ends opposite respectively to the circular hinge zones 7, 8 by a peripheral edge 4 in the shape of a square.
  • each flared part 9, 10, 11, 12 has a square base and a circular apex. Corner edges 13, 14, 15, 16 form the connections between the adjacent faces of said flared parts and are less and less accentuated as one approaches the circular hinge zones 7 and 8.
  • the length of the walls of the downward flared parts 10 and 12, measured along their intersection with a plane passing through the central axis A is greater than that of the walls upwardly flared portions 9 and 11, measured in the same manner.
  • the angle ⁇ between the above intersection lines of the walls 9 and 11 with a plane perpendicular to the central axis A is greater than the angle ⁇ between the intersection lines of the walls 10 and 11 and the same plane perpendicular to the central axis A.
  • the angles ⁇ and ⁇ have an increasing value from an angle edge 13, 14, 15, 16 and an intermediate point between two of these angle edges.
  • the length of the generators gradually decreases from a value (g, h) measured at the corner edge to a value (e, f) corresponding to a point equidistant from two corner edges.
  • the bellows 17 ', 17 are of eccentric type, which means that, during compression (FIG. 2), the external edges pass below the internal edges.
  • the bellows are preferably self-locking so as not to return to their uncompressed state in the absence of an external force Compared to a container similar to container 1 also having a polygonal contour, but whose internal hinge zones are square instead of being circular, the internal and external parts of the bellows have less risk of interference during extension or compression.
  • the container 101 shown in Figures 3, 4 and 5 is formed of a base 104, a side wall 102 consisting of bellows extending around the central axis B, and an upper part 103 having an opening closable by a plug 105 and a handle 106.
  • the side wall comprises three complete bellows 102 ', 102 "and 102"', as well as an upper half-bellows 107 'consisting of a part flared downwards.
  • Each bellows 102 ', 102 "and 102"' is formed by a portion of wall flared up 108 and a portion of wall flared 107 connected to the previous one by an internal peripheral hinge zone 110 in the form of U.
  • the bellows 102 ', 102 "and 102"' are connected to each other, as well as with the half-bellows 107 'and the base 104 by foldable zones forming peripheral edges 109.
  • the container 101 is made of blow molded polyethylene or polyvinyl chloride. As can be seen in Figures 3 and 4 the flared parts 107 and 108 have a varying width along the periphery of the side wall.
  • the width c of the flared part 107 is greater than the width d of the flared part 108 allowing blocking of the bellows in these zones, said width being equal to the local length of the generatrix of the wall of the flared part considered.
  • the width a of the part 107 is equal to the width b of the part 108.
  • zones 113 and 114 Since in zones 113 and 114 the width a and b of the flared parts 107 and 108 are equal, there will be no eccentricity of the bellows at the location of these zones during the compression of the container, the zones 113 and 114 being simply applied one against the other and superimposed. On the other hand, the zones 111 and 112 will be off-center and blocked during the compression of the container 101. As a result, the latter can be kept in the compressed state as seen in FIG. 5, while the side wall will have a large resistance to deformation forces caused by the contents of the container.
  • FIGS. 6, 7 and 8 we can see a container 201 of the jerrycan type, with a handle 206 and a pouring pipe 203 comprising a neck 204 provided with a threaded opening 205 intended to receive a stopper (not shown), and a tubular part consisting of a wall 202 extending around a central axis C and formed of a series of bellows 202 ′ to 202 v between the upper part 212 of the container and the shoulder 211 of the neck 204.
  • the pouring pipe may be made for example of polyethylene or polyvinyl chloride blow molded.
  • Each bellows 202 ′ at 202 v comprises a wall part flared upwards 207 and a wall part flared downwards 208 connected together by hinge zones 209 in a U shape.
  • the bellows are connected to one another as well as 'to parts 211 and 212 by external edges 210 formed by peripheral folds of the side wall.
  • This exemplary embodiment has a remarkable particularity.
  • the flared parts 207 and 208 are tapered between two opposite sides of the wall 202 of the pouring pipe.
  • the heights of the flared parts 207, 208 have values i, j on one side, values k, l at a point between the two sides and are practically zero on the side opposite.
  • the direction of this transverse tapering is reversed by a bellows to the adjacent bellows and so on.
  • two contiguous bellows are located between two parallel external edges 210.
  • the height of the flared part 208 has a maximum value greater than the width of the flared part 207, which allows eccentricity of the bellows during the compression of the pipe 203.
  • the compression of the pouring pipe 203 can be performed step by step, the inclination of the opening of the pouring pipe being modified with each step, which gives the user many possible positions of the opening of the pouring pipe.
  • Figure 6 we can notice that the dimension of the hinge areas 209 U-shaped whose size decreases gradually to be zero at the crossing of two adjacent external edges 210, to the point where the heights two flared parts 207 and 208 are also zero.
  • the depth / width ratio of the U-shaped hinge zone varies along the periphery, which has, among other things, the advantage of facilitating molding.
  • the positioning of the various constituent elements gives the object of the invention a maximum of useful effects which had not, to date, been obtained by similar devices.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Claims (7)

  1. Zusammendrückbares und auseinanderziehbares Hohlelement (1, 101, 202) zur Herstellung verschiedener, gegebenenfalls biegbarer Hohlkörper, wie Kanister, Flaschen oder sonstiger Behälter (1, 201), oder rohrförmiger Elemente (202), mit einer Seitenwand, die mindestens eine Struktur in Form eines Faltenbalgs aufweist, bestehend aus zwei aufgeweiteten Zonen (9 bis 12, 107 und 108, 207 und 208) mit einer gemeinsamen kleinen Basis, die ein internes, in Umfangsrichtung verlaufendes Scharnier (7, 8, 110, 209) darstellt, und bei der die großen Basen der beiden aufgeweiteten Zonen in Umfangsrichtung verlaufende Kanten (4 bis 6, 109, 210) besitzen, welche die faltbaren Zonen der Seitenwand bilden,
    gekennzeichnet dadurch, dass einerseits die Länge der Erzeugenden der aufgeweiteten Zonen sich in Umfangsrichtung kontinuierlich ändert, da die Erzeugende durch den Schnitt der Wand der genannten aufgeweiteten Zonen mit einer zur Hauptachse (A, B, C) parallelen und zu dieser Wand rechtwinklig stehenden Ebene gebildet werden, sowie dass andererseits zumindest ein Teil des internen, in Umfangsrichtung verlaufenden Scharniers (7, 8, 110, 209) aus einer Vertiefung besteht, die sich nach außen öffnet und einen in Umfangsrichtung verlaufenden Kanal bildet, zum Beispiel mit U- oder V-Form.
  2. Hohlelement gemäß Anspruch 1, gekennzeichnet dadurch, dass die Länge (i, j, k, l) der Erzeugenden der aufgeweiteten Zonen (207, 208) entlang dem Umfang vom Wert Null, an einem Punkt der Seitenwand, auf einen maximalen Wert am gegenüberliegenden Punkt ansteigt, so dass die aufgeweiteten Teile (207, 208) sich zwischen zwei gegenüber liegenden Seiten in Querrichtung verjüngen.
  3. Hohlelement gemäß Anspruch 2, gekennzeichnet dadurch, dass es mindestens zwei Strukturen in Art eines Faltenbalges besitzt und dass die Verjüngung in Querrichtung der aufgeweiteten Zonen bei der jeweils nächsten Falte in umgekehrter Richtung verläuft, so dass zwei aneinandergrenzende Falten zwischen zwei parallelen externen Kanten (210) liegen.
  4. Hohlelement gemäß einem der Ansprüche 2 und 3, gekennzeichnet dadurch, dass die Größe des in Umfangsrichtung verlaufenden Kanals, der das interne Scharnier (7, 8, 110, 209) bildet, kontinuierlich abnimmt und am Schnittpunkt von zwei externen, aneinandergrenzenden Kanten (210) null wird, genau an dem Punkt, wo die Höhen der beiden aufgeweiteten Zonen (207, 208) ebenfalls null sind.
  5. Hohlelement gemäß Anspruch 1, gekennzeichnet dadurch, dass das in Umfangsrichtung verlaufende interne Scharnier (7, 8), das sich an die beiden aufgeweiteten Zonen einer Falte anschließt, eine ringförmige oder gerundete Form besitzt, während die beiden in Umfangsrichtung verlaufenden Kanten (4, 5, 6), welche die großen Basen dieser aufgeweiteten Zonen darstellen, eine in etwa polygonale Form haben.
  6. Hohlelement gemäß einem der vorstehenden Ansprüche, gekennzeichnet dadurch, dass die Erzeugende einer der aufgeweiteten Zonen (10, 12, 107, 207) kleiner ist als die Erzeugende der zweiten aufgeweiteten Zone (9, 11, 108, 208) einer Falte, und zwar an jedem Punkt des Umfangs dieser Falte.
  7. Hohlelement gemäß Anspruch 1, gekennzeichnet dadurch, dass die beiden aufgeweiteten Zonen, die eine Falte bilden, jede aus zwei Abschnitten bestehen, von denen der erste in der Verlängerung der jeweils anderen Zone liegt und eine Erzeugende mit in etwa konstanter Länge besitzt, und dass die Erzeugenden des jeweils zweiten Abschnitts gebogen und von unterschiedlicher Länge sind, so dass die entsprechende Falte exzentrisch verlagert und blockiert werden kann, wobei die Krümmung des zweiten Abschnitts größer ist als des ersten.
EP95928525A 1995-08-17 1995-08-17 Komprimierbares und dehnbares hohles element Expired - Lifetime EP0808277B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1995/001092 WO1997007028A1 (fr) 1995-08-17 1995-08-17 Element creux compressible et extensible

Publications (2)

Publication Number Publication Date
EP0808277A1 EP0808277A1 (de) 1997-11-26
EP0808277B1 true EP0808277B1 (de) 2003-04-16

Family

ID=9475674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95928525A Expired - Lifetime EP0808277B1 (de) 1995-08-17 1995-08-17 Komprimierbares und dehnbares hohles element

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EP (1) EP0808277B1 (de)
AU (1) AU3225795A (de)
WO (1) WO1997007028A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1161899A (en) * 1998-11-10 2000-05-29 Clair Costanzo Mould and method for moulding axially compressible tubular objects in semirigid plastic material, and resulting products
GB0724960D0 (en) * 2007-12-21 2008-01-30 Brandspring Ltd Collapsible bottle
US10384580B2 (en) 2017-01-26 2019-08-20 Ford Global Technologies, Llc Moveable tray assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302847A (fr) * 1961-10-07 1962-08-31 Récipient compressible reprenant sa forme initiale
FR2467146A1 (fr) * 1979-10-12 1981-04-17 Usinage Tubes Pour Electr Dispositif semi-rigide de conditionnement
US4856664A (en) * 1987-11-17 1989-08-15 Eagle Manufacturing Company Thermoplastic container, having an integral nozzle, for a flammable liquid
US4921147A (en) * 1989-02-06 1990-05-01 Michel Poirier Pouring spout
US5310068A (en) * 1991-09-27 1994-05-10 Abdolhamid Saghri Disposable collapsible beverage bottle
US5201438A (en) * 1992-05-20 1993-04-13 Norwood Peter M Collapsible faceted container

Also Published As

Publication number Publication date
EP0808277A1 (de) 1997-11-26
WO1997007028A1 (fr) 1997-02-27
AU3225795A (en) 1997-03-12

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