EP0634338A1 - Charnière à rabattre d'une seule pièce - Google Patents

Charnière à rabattre d'une seule pièce Download PDF

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Publication number
EP0634338A1
EP0634338A1 EP94890119A EP94890119A EP0634338A1 EP 0634338 A1 EP0634338 A1 EP 0634338A1 EP 94890119 A EP94890119 A EP 94890119A EP 94890119 A EP94890119 A EP 94890119A EP 0634338 A1 EP0634338 A1 EP 0634338A1
Authority
EP
European Patent Office
Prior art keywords
hinge
parts
strip
shaped connecting
hinge according
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.)
Granted
Application number
EP94890119A
Other languages
German (de)
English (en)
Other versions
EP0634338B1 (fr
Inventor
Josef Sturm
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.)
"EXPAN" Dipl Kfm Ing Ernst Feichtinger-Chemische Fabrik und Plastikwerk
Original Assignee
"EXPAN" Dipl Kfm Ing Ernst Feichtinger-Chemische Fabrik und Plastikwerk
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 "EXPAN" Dipl Kfm Ing Ernst Feichtinger-Chemische Fabrik und Plastikwerk filed Critical "EXPAN" Dipl Kfm Ing Ernst Feichtinger-Chemische Fabrik und Plastikwerk
Publication of EP0634338A1 publication Critical patent/EP0634338A1/fr
Application granted granted Critical
Publication of EP0634338B1 publication Critical patent/EP0634338B1/fr
Anticipated expiration legal-status Critical
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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions
    • B65D47/0814—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions by at least three hinge sections, at least one having a length different from the others

Definitions

  • the invention relates to a one-piece snap hinge made of plastic, consisting of two pivotally connected hinge parts, for example the lower part and the upper part of a container closure, the two hinge parts via at least one joint formed with them, in particular a hinge band, and on both sides of the hinge band arranged strip-shaped connecting parts are interconnected.
  • Snap hinges made of plastic which are provided for example between the lower part placed on a container and the foldable upper part of a closure, are known in many embodiments.
  • EP-A-56 469 shows a snap hinge made of plastic.
  • the drawstrings are not too elastic and the spring force required for the snap action is applied in that at least one of the hinge parts is resiliently deformable.
  • the drawstrings are connected to the hinge parts via film hinge-like thin points.
  • the film hinge provided in the known snap hinge between the drawstrings is designed such that the two hinge parts can be pivoted relative to one another via a geometric axis.
  • This known hinge has a total of five thin points (two at the ends of the drawstrings and one as a film hinge), so that not only is it expensive to manufacture, but also its service life because of the risk that the thin points will be damaged - these are heavily loaded against each other when the hinge parts are pivoted - only limited.
  • the spring force required for the snap function is applied only by the hinge parts, so that when When designing the hinge parts restrictions must be observed.
  • a snap lock with a rubber hinge band, which connects a lower part to the upper part of the closure, is known from US-A 1 928 445.
  • a one-piece snap hinge closure of the type mentioned is known from EP-A-291 457.
  • the tensioning straps arranged on both sides of the film hinge should be stretched in the closed position of the hinge and should also be elastic or flexurally elastic in order to ensure the snap function of the known hinge closure.
  • EP-A-291 457 A construction similar to EP-A-291 457 is known from EP-A-494 306 (FIGS. 9 and 10), here too, elastically curved elements arranged on both sides of a film hinge are provided, which have the snap function due to their elastic Cause spring force.
  • EP-A-461 067 discloses a one-piece snap closure made of plastic, which consists of a lower part and a cap, which are connected to one another via at least one film hinge.
  • a spring element is provided on both sides of the film hinge, which is formed in one piece with the jacket walls of the two closure parts. The snap function is only applied due to the elastic properties of the spring elements.
  • the invention has for its object to provide a snap hinge of the type mentioned, which does not have the disadvantages mentioned above, is easy to manufacture and which does not require elastic, strip-shaped connecting parts.
  • this is achieved with a snap hinge of the type mentioned at the outset in that a cut is provided in at least one of the hinge parts between the joint, in particular the hinge strap, and each of the two strip-shaped connecting parts.
  • the elastic function which is essential for the snap action, is only applied in a defined area of a hinge part (in particular the cover), so that the remaining hinge part is not deformed when the Hinge part is pivoted in one direction or the other. This improves the function and the proper closing of a closure equipped with the snap hinge according to the invention.
  • the spring action and thus the snap function can be determined according to the needs.
  • the closure consists of a base body 1 (lower part) and a cover 2 (upper part).
  • the lid 2 is pivotally connected to the base body 1 via a snap hinge 3, the construction of which will be described in detail later.
  • the base body 1 consists of an upper end wall 5 and an outer nozzle 6 and an inner nozzle 7, both of which protrude downward from the upper end wall 5 of the base body 1.
  • the outer neck 6 is supported on the upper region of the container closed with the closure, whereas the inner neck 7 is locked with the neck of the container.
  • ribs 8 are provided on the inside of the inner socket 7 in the circumferential direction, which prevent the base body 1 and thus the closure from being pulled off the neck of the container again after the closure has been pressed on.
  • a nozzle 10 is also provided, in which an outlet opening 11 is provided.
  • the cover 2 is flat and hollow and has an annular flange 12 on its inside, which in the closed position of the closure accommodates the socket 10 of the base body 1 in a sealing manner.
  • the hinge 3 provided for connecting the cover 2 to the base body 1 is designed as a snap hinge so that it supports the pivoting of the cover 2 towards the end of the closing process and on the other hand holds the cover 2 by spring force in the open position shown in FIG. 3.
  • the cover 2 is connected to the base body 1 via a hinge band 13 and two strip-shaped connecting parts 14.
  • the hinge band 13 is designed as a strip which increases in thickness towards the cover 2 and towards the base body 1 at its ends 15 which are formed in one piece with the cover 2 or with the base body 1. In between, the strip forming the hinge band 13 has a section 16 which is uniform Possesses strength.
  • the two strip-shaped connecting parts 14 have a uniform thickness over their entire length.
  • the strip-shaped connecting parts 14 merge into the foldable upper part 2 or the lower part 1 of the closure without "thinning points", such as film hinges.
  • the strip-shaped connecting parts 14 have at the connection points 18, i.e. where they are in the foldable upper part 2 and in the lower part 1 which can be placed on a container (e.g. on a tube), small roundings which form because the corresponding edges of the tool with which the closure is produced by injection molding are broken. Thickenings are thus provided at the transitions of the strip-shaped connecting parts 14 into parts 1 and 2 of the closure.
  • the narrow, strip-shaped connecting parts 14 are not too elastic in the closure according to the invention, but are flexible and can have a thickness of 0.5 mm.
  • the two parts (upper part 2 and lower part 1) of the closure according to the invention are not flexible in the vicinity of the connection points 18 of the strip-shaped connecting parts 14. Rather, 13 slots 19 are provided in the upper part 2 on both sides of the hinge strip.
  • the slots 19 have the effect that the area 19 'between them of the side wall 2' of the upper part 2 can spring in the area of the connection point 17 of the hinge strap 13.
  • the lower part 1 is stiffened by a step 40 in the vicinity of the connection points 18, 17 of the strip-shaped connecting parts 14 or the hinge strap 13, that is to say in the region of the upper end wall 5 of the lower part 1.
  • an extension 21 projecting upwards from this is provided in the area of a flattened point 20 of the outer connecting piece 6 of the base body 1.
  • the approach 21 is barb-like in the manner of an arrowhead.
  • a predetermined breaking point, for example in the form of a tear-off edge 25, is provided in the region of the root of the extension 21.
  • an area 30 set back from the outer circumference of the cover 2.
  • An opening 32 is provided in this area 30.
  • the opening of the lid 2 is simple since the edge of the lid 2 protrudes in the flattened area 20 of the base body 1 in the manner of a handle 33, so that a finger can be placed well when opening the lid 2.
  • the cover 2 In its closed position, the cover 2 is centered by the step 40 on the upper end face 5 of the base body 1 and is supported against lateral movements, so that any shear forces on the extension 21 are prevented.
  • the elasticity of the area 19 'lying between the slots 19, which is essential for the snap function, is determined by the thickness (wall thickness) in the area 19' and by the length of the slots 19 and can be readily determined by appropriate choice of the thickness and / or the length of the slots 19 can be set to the optimum extent. In certain cases it can be advantageous if the spring action for the snap function in the area 19 'is reduced by one or more stiffening ribs 35 (cf. FIGS. 3 and 4).
  • the invention can be represented as follows, for example:
  • a container closure with a snap function consists of a lower part 1 and an upper part 2.
  • the lower part 1 and upper part 2 are arranged on a hinge band 13 and on both sides of the hinge band 13, non-elastic, strip-shaped Connecting parts 14 connected to each other.
  • the attachment points 18 of the strip-shaped connecting parts 14 on the lower part 1 and on the upper part 2 run parallel to the pivot axis.
  • a slot 19 extending essentially perpendicular to the parting plane 7 is provided in the upper part 2 between the hinge band 13 and each of the two strip-shaped connecting parts 14.
  • the region 19 'of the wall 2' of the upper part 2 of the closure lying between the slots 19 can spring back and forth independently of the remaining part of the upper part 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Hinges (AREA)
  • Supports For Pipes And Cables (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
EP94890119A 1993-07-14 1994-07-11 Charnière à rabattre d'une seule pièce Expired - Lifetime EP0634338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0139693A AT400432B (de) 1993-07-14 1993-07-14 Einteiliges schnappscharnier
AT1396/93 1993-07-14

Publications (2)

Publication Number Publication Date
EP0634338A1 true EP0634338A1 (fr) 1995-01-18
EP0634338B1 EP0634338B1 (fr) 1997-03-26

Family

ID=3512968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890119A Expired - Lifetime EP0634338B1 (fr) 1993-07-14 1994-07-11 Charnière à rabattre d'une seule pièce

Country Status (3)

Country Link
EP (1) EP0634338B1 (fr)
AT (2) AT400432B (fr)
DE (1) DE59402205D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860543A (en) * 1996-11-12 1999-01-19 Bouchons Mac Inc. Closure cap
EP1357049A2 (fr) * 2002-04-26 2003-10-29 Rexam Medical Packaging, Inc. Fermeture de distribution inviolable par les enfants

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442152A1 (de) * 1983-12-14 1985-06-27 Duma AB, Stockholm Verschluss fuer flaschen und dgl.
US4625898A (en) * 1984-09-11 1986-12-02 Polytop Corporation Dispensing closure employing living hinge with cams to momentarily deform hinge and recesses to accept cams
DD299286A5 (de) * 1989-03-02 1992-04-09 ���@����������@��k�� Verschluss mit schnappscharnier
EP0494306A1 (fr) * 1990-07-27 1992-07-15 Yoshino Kogyosho Co., Ltd. Capuchon avec couvercle basculant elastiquement
EP0531887A2 (fr) * 1991-09-09 1993-03-17 Cinzia Bolognesi Fermeture inviolable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442152A1 (de) * 1983-12-14 1985-06-27 Duma AB, Stockholm Verschluss fuer flaschen und dgl.
US4625898A (en) * 1984-09-11 1986-12-02 Polytop Corporation Dispensing closure employing living hinge with cams to momentarily deform hinge and recesses to accept cams
DD299286A5 (de) * 1989-03-02 1992-04-09 ���@����������@��k�� Verschluss mit schnappscharnier
EP0494306A1 (fr) * 1990-07-27 1992-07-15 Yoshino Kogyosho Co., Ltd. Capuchon avec couvercle basculant elastiquement
EP0531887A2 (fr) * 1991-09-09 1993-03-17 Cinzia Bolognesi Fermeture inviolable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860543A (en) * 1996-11-12 1999-01-19 Bouchons Mac Inc. Closure cap
EP1357049A2 (fr) * 2002-04-26 2003-10-29 Rexam Medical Packaging, Inc. Fermeture de distribution inviolable par les enfants
EP1357049A3 (fr) * 2002-04-26 2004-06-30 Rexam Medical Packaging, Inc. Fermeture de distribution inviolable par les enfants
US6866164B2 (en) 2002-04-26 2005-03-15 Rexam Medical Packaging Inc. Child resistant dispenser

Also Published As

Publication number Publication date
AT400432B (de) 1995-12-27
EP0634338B1 (fr) 1997-03-26
DE59402205D1 (de) 1997-04-30
ATE150721T1 (de) 1997-04-15
ATA139693A (de) 1995-05-15

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