EP0352880A2 - Wandkupplung - Google Patents

Wandkupplung Download PDF

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Publication number
EP0352880A2
EP0352880A2 EP89303839A EP89303839A EP0352880A2 EP 0352880 A2 EP0352880 A2 EP 0352880A2 EP 89303839 A EP89303839 A EP 89303839A EP 89303839 A EP89303839 A EP 89303839A EP 0352880 A2 EP0352880 A2 EP 0352880A2
Authority
EP
European Patent Office
Prior art keywords
strip
wall part
coupling
wall
retaining strip
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
EP89303839A
Other languages
English (en)
French (fr)
Other versions
EP0352880A3 (en
EP0352880B1 (de
Inventor
David Arthur Williams
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.)
Linpac Mouldings Ltd
Original Assignee
Lin Pac Mouldings Ltd
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 Lin Pac Mouldings Ltd filed Critical Lin Pac Mouldings Ltd
Priority to AT89303839T priority Critical patent/ATE85017T1/de
Publication of EP0352880A2 publication Critical patent/EP0352880A2/de
Publication of EP0352880A3 publication Critical patent/EP0352880A3/en
Application granted granted Critical
Publication of EP0352880B1 publication Critical patent/EP0352880B1/de
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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/22—Devices for holding in closed position, e.g. clips

Definitions

  • the present invention relates to a wall coupling and is particularly concerned with such a coupling which restrains two adjacent wall parts in overlying relationship from relative displacement over each other.
  • one wall part may be on a container lid while the other wall part is on the container body so that the coupling provides a means for retaining the lid in its closed condition.
  • one wall part may be coupled merely to form an extension of a component (such as a lid) having the other wall part.
  • Numerous devices have been proposed for coupling together wall parts as aforementioned such as latches, strapping, removable pegs and snap engaging lock devices.
  • a wall coupling comprising a first wall part having a first opening and which is to be positioned adjacent to a second wall part having a second opening with the first and second openings co-inciding; a retaining strip carried by the first wall part on the side thereof which is, or is to be, remote from the second wall part, said retaining strip overlying the first opening and having opposite end regions mounted to be displaceable relatively towards and away from each other and a mid-length region which is foldable and unfoldable respectively in response to said relative displacement of the end regions whereby, during displacement of the end regions relatively towards each other on the first wall part, the mid-length region is folded to, or towards, a doubled condition in which it extends through the first opening for entering the second opening to couple the two wall parts and to restrain them from displacement over each other.
  • the retaining strip will be carried by the first wall part so that its end regions are displaceable towards each other in a sense whereby the mid-length region of the strip is folded to project through the opening in the first wall part and into a coincident opening of the second wall part which is positioned adjacent and conveniently (but not essentially) in face-to-face contact with the first wall part.
  • the folded strip is a relatively close fit in both the first and second openings to alleviate relative displacement between the two wall parts.
  • the first wall part may be on a closure member such as a lid or similar component which is to be coupled to a second wall part of a container body (or of an extension to the closure member).
  • the second wall part will have the second opening appropriately located to coincide with the first opening and to receive the folded retaining strip when the coupling is effected.
  • the first opening will usually be in the form of a slotted aperture in the first wall part.
  • the second opening may also be in the form of an aperture which extends through the second wall part or may be in the form of a recess in the second wall part within which recess the folded retaining strip is received.
  • the folded retaining strip may extend through both the first and second openings to be received in a co-inciding third opening in a third wall part which third wall part is fixed relative to (conveniently being integral with) the first wall part.
  • the second wall part may be received between the first and third wall parts and coupled thereto by the folded retaining strip.
  • the folded retaining strip is not cantilevered in its coupling between the second wall part and the third wall part and thereby the retaining strip is relieved of shear forces to which it may be subjected from its coupling to the second wall part.
  • the relative displacement between the end regions of the retaining strip is in a plane which is parallel and adjacent to the first wall part.
  • the aforementioned displacement may be along track means on the first wall part.
  • the track means conveniently retains the retaining strip on the first wall part substantially unobtrusively when the retaining strip is in its unfolded condition and substantially unobtrusively on the side of the first wall part from which the folded retaining strip enters the first opening. It is not necessary for both end regions of the retaining strip to be displaceable on the first wall part.
  • end region will be secured relative to the first wall part while the other end region is slidably displaceable (conveniently along the track means as aforementioned) relative to the first wall part to effect the folding and unfolding of the mid-length region of the retaining strip.
  • end region may have a handle or a finger/thumb recess, ridge or the like which is intended to facilitate its manual engagement.
  • stop/catch means is provided for temporarily retaining the strip in its folded condition. Stop/catch means may also be provided for temporarily retaining the strip in its unfolded condition (for example to alleviate the mid-length region of the retaining strip from inadvertently passing through the first opening where it could possibly interfere with the location of the second wall part adjacent to the first wall part).
  • the stop/catch means conveniently comprises co-operating recesses or dimples and complementary projections which inter-engage between the strip and first wall part to provide interference which temporarily restrains the strip from sliding displacement along the aforementioned track means.
  • the retaining strip may be provided with one or more hinge regions which facilitate the folding and unfolding of the strip and may determine the locations on the strip at which folding is to be effected. Generally three such locations will be provided, one location being within the mid-length region of the strip and the other two locations being one at each end of the mid-length region between that mid-length region and the adjacent end region of the strip.
  • the hinge regions may serve to determine the direction in which the mid-length region is displaced when the end regions of the strip are moved relatively towards each other (to ensure that as the mid-length region is folded to, or towards the doubled condition, a folded portion of the strip will pass through the first opening).
  • the hinge regions are formed integral with the retaining strip, for example by relatively thin walled sections of the retaining strip.
  • the retaining strip will usually be formed as a one piece plastics moulding. It is envisaged that the first wall part and the component of which it forms part will also be formed as a plastics moulding to which the retaining strip is fitted. Although the second wall part and such component of which that wall part forms part may also be of plastics, it is envisaged that this wall part is likely to be of any material such as cardboard or metal sheet.
  • a component may have several wall couplings in accordance with the present invention for coupling that component to one or more second wall parts.
  • the present example will be considered for coupling a closure member in the form of a plastics moulded lid 1 having a peripheral skirt 2 to a container body (or to an extension skirt for the lid) provided by a wall 3 which is received within a boundary presented by the skirt 2 and substantially in face-to-face contact therewith.
  • the wall 3 will often be of plastics although it will be appreciated that other materials will be suitable for that wall.
  • the strip 5 comprises a longitudinally extending mid-length region 6 and opposed end regions 7 and 8.
  • the retaining strip 5 is formed as a one piece injection moulding in plastics.
  • the end region 7 is of circular profile with the longitudinal extent of the strip region 6 extending radially therefrom.
  • the end region 8 is in the form of a bar extending perpendicularly relative to the longitudinal extent of the strip region 6.
  • the circular end region 7 has diametrically opposed external flanges 9 while the opposite ends of the bar region 8 are profiled as flanges 10.
  • the tracks 4 are in the form of longitudinally extending recesses and the flanges 9 and 10 are received within the opposed recesses 4 (as shown in Figure 2) to retain the strip 5 on the skirt wall part 2.
  • the tracks 4 are parallel with the longitudinal extent of the strip mid-­length region 6 and the end region bar 8 abuts an external rib 11 at an end of the tracks 4.
  • the flanges 9 are received in the recesses 4 to be slidable along the tracks.
  • the end bar 8 is welded, adhesively secured or otherwise bonded to firmly retain it adjacent to the rib 11. Alternatively the end bar 8 may be mechanically retained, for example by snap engagement or an interference fit, in the position shown in Figure 1 adjacent to the rib 11.
  • an elongated or slotted aperture 12 Formed through the wall thickness of the skirt 2 is an elongated or slotted aperture 12 the longitudinal extent of which is parallel with that of the mid-length region 6 of the retaining strip.
  • the strip 5 generally overlies the aperture 12 as shown in Figure 1.
  • the plastics retaining strip 5 is moulded with relatively thin wall portions which provide three integral and longitudinally spaced hinge regions 13, 14 and 15.
  • Hinge region 13 is located generally at the centre length position of the mid-length region 6
  • the hinge region 14 is located between the end region 7 and the centre length region 6
  • the hinge region 15 is located between the end region 8 and the mid-length region 6.
  • the circular end region 7 is displaceable longitudinally towards and from the end region 8 by sliding movement of the flanges 9 along the tracks 4 and in a plane which is adjacent to and substantially parallel with the skirt wall 2.
  • the circular region 7 is provided with a concentric annular flange 7a to facilitate engagement of that region with thumb or finger for its manual displacement along the tracks 4.
  • the plastics of the retaining strip 6 is flexible so that, in response to displacement of the end region 7 in a direction towards the end region 8, the strip folds at the hinge regions 13 to 15 from what may be regarded as an unfolded condition (shown in Figure 4) to a folded condition shown in Figure 5 where the mid-length region 6 is doubled and projects through the aperture 12 of the wall 2.
  • the reduced wall thickness which forms the hinge regions 13 to 15 of the plastics retaining strip is offset towards one or the opposite broad faces of the mid-length region 6 as appropriate to ensure that the displacement exhibited by the retaining strip in moving from its unfolded to its folded condition is in the required direction for the doubled mid-length region to project through the aperture 12.
  • the mid-length region 6 of the retaining strip in its folded condition the mid-length region 6 of the retaining strip is received closely between the opposed side edges of the elongated aperture 12 so that those side edges can restrain the folded mid-length region of the retaining strip from substantial lateral displacement.
  • the wall 3 is provided with an elongated aperture or slot 16 which is arranged to coincide with the slot 12 when the walls 2 and 3 are in the position at which they are required to be coupled (for example with the lid 1 correctly fitted to close the container body).
  • the folding of the mid-length region 6 of the retaining strip from the condition shown in Figure 4 to that shown in Figures 5 and 6 will cause the retaining strip to project through both apertures 12 and 16.
  • the folded region 6 is closely received between the laterally opposed side edges of the slot 16 so that the wall 2 is restrained from displacement relative to the wall 3 in a direction which extends perpendicularly to the plane of the drawing in Figure 5.
  • a stop 16 is provided on each of the tracks 4 with which the flanges 9 can engage when the end region 7 is displaced to fold/double the mid-length region 6.
  • the stops 16 conveniently comprise studs or recesses on the track which snap engage or otherwise interfere or catch with complementary recesses or studs respectively on the flanges 9.
  • Similar stops 17 can be provided on the tracks 4 with which the flanges 9 can engage when the mid-length region of the strip is in its unfolded condition shown in Figure 4; this is to alleviate the likelihood of the retaining strip 6 projecting through the aperture 12 prior to the wall 3 being positioned adjacent to the skirt wall 2 and thereby the retaining strip from interfering with the positioning of the wall 3.
  • the flanges 9 will, of course, be readily disengageable from either the stops 16 or the stops 17 by manual pressure applied to displace the end region 7 along the tracks 4.
  • the lid 1 is provided with an internal flange 18 which extends substantially parallel to and spaced from the skirt wall 2.
  • the flange 18 has an elongated aperture 19 which coincides with the aperture 12 in the wall 2 and may be similarly sized.
  • the wall 3 is positioned between the wall 2 and flange 18 so that its aperture 16 coincides with the apertures 12 and 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Paper (AREA)
  • Closures For Containers (AREA)
  • Table Devices Or Equipment (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP89303839A 1988-07-29 1989-04-18 Wandkupplung Expired - Lifetime EP0352880B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89303839T ATE85017T1 (de) 1988-07-29 1989-04-18 Wandkupplung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8818115 1988-07-29
GB8818115A GB2221243B (en) 1988-07-29 1988-07-29 A wall coupling

Publications (3)

Publication Number Publication Date
EP0352880A2 true EP0352880A2 (de) 1990-01-31
EP0352880A3 EP0352880A3 (en) 1990-07-18
EP0352880B1 EP0352880B1 (de) 1993-01-27

Family

ID=10641333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89303839A Expired - Lifetime EP0352880B1 (de) 1988-07-29 1989-04-18 Wandkupplung

Country Status (4)

Country Link
EP (1) EP0352880B1 (de)
AT (1) ATE85017T1 (de)
DE (1) DE68904615T2 (de)
GB (1) GB2221243B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100855085B1 (ko) 2007-06-25 2008-08-29 (주)베스트이지캡 기존 조립시설 이용이 용이한 마개분실방지 용기

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8704686U1 (de) * 1987-03-30 1987-05-27 Fritz Schaefer Gmbh, 5908 Neunkirchen, De

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8704686U1 (de) * 1987-03-30 1987-05-27 Fritz Schaefer Gmbh, 5908 Neunkirchen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100855085B1 (ko) 2007-06-25 2008-08-29 (주)베스트이지캡 기존 조립시설 이용이 용이한 마개분실방지 용기

Also Published As

Publication number Publication date
GB2221243B (en) 1992-05-27
EP0352880A3 (en) 1990-07-18
GB2221243A (en) 1990-01-31
EP0352880B1 (de) 1993-01-27
DE68904615D1 (de) 1993-03-11
DE68904615T2 (de) 1993-06-03
GB8818115D0 (en) 1988-09-01
ATE85017T1 (de) 1993-02-15

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