EP1394062A1 - Dispositif de fermeture automatique d'un récipient étanche à l'air - Google Patents

Dispositif de fermeture automatique d'un récipient étanche à l'air Download PDF

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Publication number
EP1394062A1
EP1394062A1 EP02425534A EP02425534A EP1394062A1 EP 1394062 A1 EP1394062 A1 EP 1394062A1 EP 02425534 A EP02425534 A EP 02425534A EP 02425534 A EP02425534 A EP 02425534A EP 1394062 A1 EP1394062 A1 EP 1394062A1
Authority
EP
European Patent Office
Prior art keywords
closing device
airtight container
container according
automatic closing
stop pin
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Withdrawn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
EP02425534A
Other languages
German (de)
English (en)
Inventor
Giuseppe Pacelli
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.)
Metalscatola SpA
Original Assignee
Metalscatola SpA
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 Metalscatola SpA filed Critical Metalscatola SpA
Priority to EP02425534A priority Critical patent/EP1394062A1/fr
Publication of EP1394062A1 publication Critical patent/EP1394062A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member

Definitions

  • the present invention relates to an automatic closing device for an airtight container for storing foodstuff, paints, resins, glues and all products falling within the so-called "general line” category.
  • the airtight container taken as reference in the present patent is a can, a cylindrical drum, a tapered bucket.
  • the covering element is a cover, generally made of thin sheet or plastic with a medium-high stiffness.
  • the container body can include one or more recesses arranged in opposite points next to the container body edge and equipped with grips, handles or a band for handling them, generally made of metal or plastic.
  • the container is further of the type that can be used for applying closing elements that ensure keeping the seal of a gasket housed in the cover.
  • the container shape is such as to confer structural stiffness to the joining flange in which the gasket is housed. Moreover, the shape is such as to allow stacking the containers with equal sizes, that is orderly placing different containers one over the other.
  • a gasket for a pressurized cover is distorted under the action of a squashing force upon closing the cover by keeping its state active due to the resiliency of the cover edges and the container body edge that are in contact.
  • those covers are taken into account that, in addition to resiliency of edges in contact, are equipped with wings or are equipped with a lever or a ring with clamp. A lever applied to the ends of said clamp or ring allows the quick opening of the container and at the same time ensures the gasket squashing under stocking and handling conditions.
  • Figures 1 and 2 show an airtight container of the known type; in particular, Figure 1 shows the view of a container 1 comprising an airtight cover 2 of the lever type (not shown), a body 1A of the container delimited by an edge 3 having a "lip" shape.
  • the airtight cover 2 in the embodiment a lever cover made of thin sheet, is composed of a portion of a plane surface 6 delimited by a shaped edge, shaped as a recess, formed by an intrados wall 7 and an extrados wall 8, respectively, with an approximately plane shape with an approximately vertical and concave slanting.
  • These walls are joined by means of a plane annular length 9 with suitable width that imparts stiffness to the cover in case of opening with the help of a lever of the screwdriver type, or in case of manual handling by means of a handle secured to the container.
  • Such recess houses a gasket 10 made of silicone- or polyuretane-based material or any other plastic or rubber material, and is joined with the lip edge 3 by pressing the intrados wall 7 onto the internal lip wall 3, the lip 3 apex squashing the gasket 10.
  • a metal clamp 11, of a concave shape and equipped with a lever 12 (not shown) for a quick release tightens the external edge 8 belonging to the cover 2 guaranteeing the squashing state of the gasket during stocking and handling.
  • a seal made of flexible material, adhesive and plastics or paper, shaped as a small disk or clamp, applied on the package as guarantee of product integrity, seals the closure till the operator opens the container for its first use checking its integrity.
  • FIG. 2 shows another type of container whose winged airtight cover 42, in the embodiment made of thin sheet, is composed of a portion of a plane surface 46 delimited by a shaped edge, shaped as a recess, comprising an intrados wall 47 and an extrados wall 48, respectively, with an approximately plane shape with an approximately vertical and concave slanting.
  • These walls are joined by means of a surface length 49 with suitable width that imparts stiffness to the cover in case of opening with the help of a lever of the screwdriver type, or in case of manual handling by means of a handle.
  • the extrados wall 48 has projecting surface lenghts 53 - the wings.
  • the recess houses a gasket 10 and is joined with a lip edge 3 by pressing the intrados wall 47 against it, the lip edge 3 squashing the gasket 10.
  • the wings 53 snap in closing position, opening when sliding on the external lip 3 edge. In order to open the cover the operator must apply a separating force that is enough to allow the wings to open due to the external lip edge.
  • the production cycle for filling and airtightly closing the above-described lever container provides for the approach of the cover to the container body and the actuation of the lever to pull the closing band integral with the cover. These actions are nowadays directly performed through a manual intervention.
  • the set of standards dealing with cleaning and care of industrial production processes provides for the use of automation in all production steps, including the cover approaching and closing steps, always more and more underlying the trend towards removing those operations that are directly, manually performed by an operator.
  • the container in Fig. 1 is a container equipped with a ring with lever as guarantee of keeping the adherence conditions between container body lip and cover recess containing the gasket.
  • the operator operates on the lever to tighten the ring around the external cover edge in order to create the adherence conditions between the components themselves; in particular the gasket remains pressed guaranteeing the airtightness due to the fact that the ring (11), tightened around the container, keeps the coupled elements in position. Complying with health standards that are more and more stringent, this arrangement is not prone to be automatically handled, especially when filling the container.
  • the container schematically shown in Figure 2 can be used for automatically handling the airtight closure since the airtight seal is guaranteed by the elastic thrust of the wings without the help of any other distortion element; it however has the inconvenience that it is not able to oppose an adequate force to keep the cover adherent to the container body lip and therefore keep an adequate squashing of the sealing gasket 10.
  • Object of the present invention is thereby disclosing a device that allows inserting the automatised closing step of the above-described containers.
  • the winged extrados wall 53 comprises, in addition to a set of elastic wings 53, a straight wing 101 equipped with two aligned holes 104 and a central hole 155.
  • a base 102 made of metal or plastics, supports two elastic pegs 103 arranged at a suitable distance in order to counteract a torque reaction along the horizontal median line.
  • Each elastic peg 103 is composed of a pin 103A ending with two half-cones 103B longitudinally separated by a space that allows joining the two half-cones when they are subjected to the action created when coupling with a holed component.
  • Each elastic peg 103 is centered in fact with its respective hole 104 belonging to the straight wing 101.
  • the base 102 is further equipped at its center with a circular seat 105.
  • a stop pin 106 is composed of a cylinder made of metal or plastic material that is coupled with the circular seat 105 belonging to the base 102.
  • the stop pin 106 comprises a toothed crown 107 delimited below by a circular crown 119 and above by a set of chutes 114 interleaved by a set of approximately horizontal planes 107A and a set of approximately vertical abutment walls 113.
  • the stop pin 106 has at its upper end a seat 108 for a tool, for example a wrench for an hexagonal-head screw.
  • An external shaped cover 109 made of metal or plastic material, has two holes 110 that guide and keep their respective pins 103A; the cover 109 and the base 102 are in fact joined due to the action of the two elastic pegs 103 equipped with elastically expanding half-cones 103B.
  • the cover 109 comprises a recess inside which a toothed crown 111 is housed, made of an interleaved set of chutes 114 and horizontal planes 115 that are coupled with the respective planes of the crown projecting from the cylinder base 112 of the stop pin 106.
  • the circular seat 105 of the base 102 houses the cylinder base 112 of the stop pin 106.
  • the stop pin 106 further comprises a vertical slot 116 that performs the function of a lever as regard a wire 117 made of metal or plastic or any other flexible material that is able to tighten the cover gripping the recess obtained in each one of the projecting wings 53.
  • the cylinder base 112 of the stop pin 106 guides an helical spring 118 which is axially counteracted by the lower base 119 of the stop pin 106 and by the circular seat 105 of the base 102.
  • the cylinder spring 118 is of such sizes as to be able to bias into mutual contact the two toothed profiles of crown 107 and crown 111 respectively integral with the stop pin 106 and the cover 109, at the same time keeping the stop cover 106 separated with respect to the circular seat 105 of the base 102.
  • the closing operation comprises the following steps:
  • the closing operation can be easily performed by an automatic system comprising a machinery M that aligns the cover resting onto the container body filled with material to be stored with respect to a tool 120 integral with the machinery M.
  • This operation occurs automatically and solves the problem of the presence of an operator where a health precaution is required.
  • the opening operation is simply performed by pushing towards the container interior, now with any tool, the stop pin 106 that appears facing the operator. Due to the axially applied force, a detachment occurs between the profiles of the two toothing 107 and 111 with the following loosening of the flexible wire 117 tension, freeing the wings for being withdrawn with respect to the projecting outline of the container body edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP02425534A 2002-08-28 2002-08-28 Dispositif de fermeture automatique d'un récipient étanche à l'air Withdrawn EP1394062A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02425534A EP1394062A1 (fr) 2002-08-28 2002-08-28 Dispositif de fermeture automatique d'un récipient étanche à l'air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425534A EP1394062A1 (fr) 2002-08-28 2002-08-28 Dispositif de fermeture automatique d'un récipient étanche à l'air

Publications (1)

Publication Number Publication Date
EP1394062A1 true EP1394062A1 (fr) 2004-03-03

Family

ID=31198023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425534A Withdrawn EP1394062A1 (fr) 2002-08-28 2002-08-28 Dispositif de fermeture automatique d'un récipient étanche à l'air

Country Status (1)

Country Link
EP (1) EP1394062A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1932773A1 (fr) * 2006-12-14 2008-06-18 Impress Group B.V. Verpackung enthältend ein Behälter mit einem Behälterdeckel, der mit reversiblen und wiederverwendbaren Verriegelungsmitteln ausgestattet ist
WO2020231272A1 (fr) * 2019-05-16 2020-11-19 Lidtek As Couvercle pourvu d'un mécanisme de fermeture pour serrer une jupe de couvercle autour d'une paroi latérale d'un seau, seau pour ledit couvercle et seau combiné isolé thermiquement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1400918A (en) * 1920-02-03 1921-12-20 Stock Robert Bottle-cap
GB276572A (en) * 1927-02-25 1927-09-01 Arthur Edward Punt Improvements in or relating to sealing devices for petrol cans and like containers
FR671589A (fr) * 1929-03-16 1929-12-14 Fermeture amovible et étanche pour récipients
GB368922A (en) * 1931-01-26 1932-03-17 James Blair Cairns Improvements in or relating to closures for milk churns
US2233518A (en) * 1938-03-02 1941-03-04 Continental Can Co Metal container

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1400918A (en) * 1920-02-03 1921-12-20 Stock Robert Bottle-cap
GB276572A (en) * 1927-02-25 1927-09-01 Arthur Edward Punt Improvements in or relating to sealing devices for petrol cans and like containers
FR671589A (fr) * 1929-03-16 1929-12-14 Fermeture amovible et étanche pour récipients
GB368922A (en) * 1931-01-26 1932-03-17 James Blair Cairns Improvements in or relating to closures for milk churns
US2233518A (en) * 1938-03-02 1941-03-04 Continental Can Co Metal container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1932773A1 (fr) * 2006-12-14 2008-06-18 Impress Group B.V. Verpackung enthältend ein Behälter mit einem Behälterdeckel, der mit reversiblen und wiederverwendbaren Verriegelungsmitteln ausgestattet ist
WO2008071769A1 (fr) * 2006-12-14 2008-06-19 Impress Group B.V. Emballage comprenant un récipient associé à un couvercle équipé de moyens de verrouillage réversibles et réutilisables
WO2020231272A1 (fr) * 2019-05-16 2020-11-19 Lidtek As Couvercle pourvu d'un mécanisme de fermeture pour serrer une jupe de couvercle autour d'une paroi latérale d'un seau, seau pour ledit couvercle et seau combiné isolé thermiquement

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