EP1318079A1 - Verschlussvorrichtung mit unverlierbarem Verschluss - Google Patents

Verschlussvorrichtung mit unverlierbarem Verschluss Download PDF

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Publication number
EP1318079A1
EP1318079A1 EP02356250A EP02356250A EP1318079A1 EP 1318079 A1 EP1318079 A1 EP 1318079A1 EP 02356250 A EP02356250 A EP 02356250A EP 02356250 A EP02356250 A EP 02356250A EP 1318079 A1 EP1318079 A1 EP 1318079A1
Authority
EP
European Patent Office
Prior art keywords
cap
link
assembly
retention ring
ring
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Withdrawn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
EP02356250A
Other languages
English (en)
French (fr)
Inventor
Bernard Mermet
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.)
Sobem
Original Assignee
Sobem
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 Sobem filed Critical Sobem
Publication of EP1318079A1 publication Critical patent/EP1318079A1/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Withdrawn legal-status Critical Current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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/16—Devices preventing loss of removable closure members

Definitions

  • the closure assembly according to the invention is in particular intended to allow installation by mechanized means.
  • Such a captive cap closure assembly is good known in principle.
  • the link is connected radially on the outside of the cap and the retaining ring of so that it extends, after installation of the closure assembly on the nozzle, on the side of the cap and the retaining ring, being folded over 180 degrees.
  • non-captive caps are not advantageous when it is important to ensure good protection of the tips against any form of contamination, as for example the case of "Luer” type tips that include the connection units used in the medical field to carry out infusions.
  • the object of the present invention is to remedy the aforementioned drawback, by providing a set of closures to captive cap that can be put on the object to be equipped with simple and quick to carry out, in particular by using means mechanized, while remaining perfectly functional.
  • the link extends between the cap and the retention ring along a route helical and is connected to the cap by one of its ends and to the retention ring by its other end, and the link is shaped to allow, when, during said installation, the retention ring comes to bear against the retention projection and that the engagement of the cap on the nozzle is continued, to press directly against the ring of retention in order to achieve the passage of the latter beyond the projection of retention.
  • This structure turns out to work in good conditions and is favorable in terms of one-piece molding of the assembly of clogging.
  • the cap and the retaining ring are held coaxially one by relation to each other, and the closure assembly fits into an envelope generally cylindrical.
  • This closure assembly can therefore be easily taken care of and put in place, in particular by screwing, mechanized means, on the tip intended to receive it.
  • the link can, at the time of this establishment, be independent of the cap and the retaining ring except at the level of its areas of connection to the cap on the one hand and to the ring of retention on the other hand.
  • the closure assembly includes at least one breakable zone assembly of the link to the cap, to the retaining ring and / or to itself.
  • This breakable assembly zone can be shaped to break when installing the closure assembly on the tip to be fitted or to break after this installation, at time of first cap removal.
  • the link extending along a helical path delimits spaces between the cap and the retaining ring and there is a direct contact of the cap on the link and of the link on the retention ring after the moment when the retention ring comes to bear against the projection circular of the nozzle to be fitted.
  • the link has a length slightly less than the circumference of the closure assembly, so that its connection area to the retention ring is at close to its connection area to the cap. Said breakable zone assembly can then be arranged between these two areas of connection.
  • connection areas of the link to the cap and to the retention ring tend to deviate angularly from each other when the retention ring abuts against the retention projection and that the screwing of the closure assembly is continued; the pursuit of screwing the cap brings the connection area of the link to the cap resting against the retention ring and / or the connection area of the link to the retention ring resting against the cap.
  • Connection areas of the link to the cap and to the ring retention then tend to shift angularly one relative to the other in the direction of screwing the cap.
  • the link can then have a length less than the circumference of the closure assembly, such as the area of connection of the link to the cap abuts against the area of connection of the link to the retention ring in order to create a connection in rotation between the cap and the retention ring, bringing the retention to engage on the retention projection by a combined movement axial progression and rotation.
  • the link can also be longer than the circumference of the closure assembly, such as its areas of connection to cap and retention ring overlap at during the screwing of the cap, thus creating an axial connection between the cap and retention ring, through which the axial progression of the cap is transmitted to the retention ring.
  • FIG. 1 shows a connection unit 1 for use medical, in particular usable for carrying out infusions.
  • unit 1 comprises two ball valves 2 connected one to the other by an intermediate pipe 3 and each having a pair connection plugs 4 for connecting pipes of the products to be infused.
  • each end piece 4 includes a helical groove at its free end, forming a thread 5, and, set back from this free end, a projection annular 6 of rounded shape. It appears in Figure 4 that the conduit 7 that delimits the end piece 4 has a slightly conical shape, of the "Luer" type.
  • Each end piece 4 has a stopper assembly 10 in synthetic material, comprising a cap 11, a retention ring 12 and a link 13 connecting the cap 11 and the retention ring 12.
  • the Figures 1 and 2 show that the retention ring 12 is intended to be engaged behind the projection 6 and that the link 13 has a length such that allows removal of the cap 11 by unscrewing while the ring 12 remains engaged behind the projection 6, the assembly 10 thus making the cap 11 captive.
  • cap 11 is threaded internally so that it can be screwed onto thread 5 and that it includes a central pad 15.
  • This pad 15 is shaped to bear tightly against the wall of the nozzle 4 which delimits the conduit 7 when this cap 11 is completely screwed onto the end piece 4.
  • the cap 11 further comprises longitudinal ribs 16 on its peripheral wall, favoring its grip.
  • the link 13 extends, before setting place, between the cap 11 and the retention ring 12, along a route helical, the helicoid formed by this link 13 progressing from the cap 11 to the retaining ring 12 in a direction identical to the screwing direction of the cap 11.
  • the link 13 is connected to the cap 11 at the face end of this cap, by an angled connection zone 20 straight, and is connected to the ring 12, at the face of the latter facing the cap 11, also by a connection zone 21 at right angles.
  • the length of the link 13 is very slightly less than the circumference of the assembly 10, so that the outer right angles zones 20, 21 are, before installation on the end piece 4, at immediate proximity to each other. These exterior right angles are connected to each other by a veil of material 25 of small thickness, which gives a homogeneity of structure to the closure assembly 1 before implementation place and which is capable of tearing when this establishment is performed, as will be described later.
  • the retention ring 12 has the same external diameter that the cap 11 and is held in a position coaxial with it cap 11 by the link 13.
  • the internal edge of this ring 12 has, as shown in Figure 4, a rounded shape and, in its area of smaller diameter, has a diameter slightly less than the largest diameter of the projection 6.
  • the plastic material constituting the assembly of plug 1 is slightly stretchy elastically, and these diameters respective of the ring 12 and the projection 6 are such that the ring 12 can be engaged beyond the projection 6 by circumferential stretching then can be locked behind this projection 6 by elastic return, as is deduced from Figures 5 and 6.
  • the closure assembly 1 is screwed by mechanical means on the nozzle 4; during this screwing, the ring 12 comes to meet the projection 6, which causes the rupture of the web 25; the friction of the ring 12 against the projection 6 tend to spread angularly the zone 20 of the zone 21 then, the screwing continuing, the zone 20 bears against the ring 12 at the same time as zone 21 abuts against the cap 11. An axial connection is then made, as shown in Figure 5, which allows to force the ring 12 beyond projection 6.
  • the helicoid formed by the link 13 progresses from the cap 11 to the retention ring 12 in one direction opposite to the screwing direction of the cap 11, and the length of the link 13 is less than the circumference of the assembly 10 so that the areas 20 and 21 are angularly distant from each other.
  • the coming of the ring 12 pressing against the projection 6 when the cap 11 is screwed brings the anterior axial wall (in the direction of screwing) of zone 20 in abutment against the posterior axial wall 21a of the zone 21, thus creating a connection in rotation between the cap 11 and the ring 12.
  • the latter engages around the projection 6 in a combined movement of axial progression and rotation.
  • Figure 8 shows that zones 20 and 21 can have lengths such that zone 20 abuts zone 21 independently of the axial progression of the cap 11.
  • Figure 8 shows another advantageous feature can also be applied to other forms of execution. It exists in this case breakable bridges 26 arranged on the one hand between the link 13 and the cap 11 and on the other hand between the link 13 and the ring 12. These bridges which are cut when the cap 11 is placed on the end piece 4 serve only to ensure cohesion of the part, that is to say the guarantee of good coaxiality of the cap 11 and the ring 12, for allow easy handling and automation of installation of the cap.
  • the helicoid formed by the link 13 also progresses from the cap 11 to the ring 12 in a direction opposite to that of the screwing of the cap 11, and the length of the link 13 is greater than the circumference of the assembly 10 of so that zones 20 and 21 overlap each other. A relationship axial is thus created from the start between the cap 11 and the ring 12.
  • Figure 10 shows that zones 20 and 21 can be angularly offset and then have rounded shapes suitable for favor their overlapping when the cap is screwed continues after the coming of the ring 12 in abutment against the projection 6.
  • the invention provides a decisive improvement to the prior art, providing a cap assembly with captive cap that can be put in place on the object to be fitted in a simple and rapid manner, especially in employing mechanized means, while remaining perfectly functional.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP02356250A 2001-12-05 2002-12-03 Verschlussvorrichtung mit unverlierbarem Verschluss Withdrawn EP1318079A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0115725A FR2832984B1 (fr) 2001-12-05 2001-12-05 Ensemble de bouchage(10)a capuchon(11)imperdable
FR0115725 2001-12-05

Publications (1)

Publication Number Publication Date
EP1318079A1 true EP1318079A1 (de) 2003-06-11

Family

ID=8870137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02356250A Withdrawn EP1318079A1 (de) 2001-12-05 2002-12-03 Verschlussvorrichtung mit unverlierbarem Verschluss

Country Status (2)

Country Link
EP (1) EP1318079A1 (de)
FR (1) FR2832984B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020102122A2 (en) * 2018-11-12 2020-05-22 Novembal Usa Inc. Tethered plastic screw stopper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329536A1 (fr) * 1973-07-02 1977-05-27 Somepla Sa Nouvelle capsule a vis inviolable et imperdable
US4583652A (en) * 1984-07-10 1986-04-22 Goldberg James R Safety closure device
US5114655A (en) * 1989-08-17 1992-05-19 Cole Machine & Mfg. Co. Method and apparatus for injection molding
DE9318243U1 (de) * 1993-11-29 1994-02-10 Crown Cork Ag, Reinach Kunststoff-Schraubkappe mit Garantieband und Fangband

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329536A1 (fr) * 1973-07-02 1977-05-27 Somepla Sa Nouvelle capsule a vis inviolable et imperdable
US4583652A (en) * 1984-07-10 1986-04-22 Goldberg James R Safety closure device
US5114655A (en) * 1989-08-17 1992-05-19 Cole Machine & Mfg. Co. Method and apparatus for injection molding
DE9318243U1 (de) * 1993-11-29 1994-02-10 Crown Cork Ag, Reinach Kunststoff-Schraubkappe mit Garantieband und Fangband

Also Published As

Publication number Publication date
FR2832984A1 (fr) 2003-06-06
FR2832984B1 (fr) 2004-01-30

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

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Effective date: 20040929

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Owner name: MERMET, BERNARD

Owner name: SOBEM

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Effective date: 20061018