EP0222736A2 - Joint à baionnette pour couvercle d'extincteur - Google Patents

Joint à baionnette pour couvercle d'extincteur Download PDF

Info

Publication number
EP0222736A2
EP0222736A2 EP86890310A EP86890310A EP0222736A2 EP 0222736 A2 EP0222736 A2 EP 0222736A2 EP 86890310 A EP86890310 A EP 86890310A EP 86890310 A EP86890310 A EP 86890310A EP 0222736 A2 EP0222736 A2 EP 0222736A2
Authority
EP
European Patent Office
Prior art keywords
ring
recesses
cover
radial
claws
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
EP86890310A
Other languages
German (de)
English (en)
Other versions
EP0222736B1 (fr
EP0222736A3 (en
Inventor
Rainer Cap
Franz Fichtinger
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.)
Osterreichische Feuerschutz GmbH
Original Assignee
Osterreichische Feuerschutz GmbH
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 Osterreichische Feuerschutz GmbH filed Critical Osterreichische Feuerschutz GmbH
Publication of EP0222736A2 publication Critical patent/EP0222736A2/fr
Publication of EP0222736A3 publication Critical patent/EP0222736A3/de
Application granted granted Critical
Publication of EP0222736B1 publication Critical patent/EP0222736B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/06—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating

Definitions

  • the invention relates to a bayonet closure for containers with a rigidly connected to the edge of the opening ring and a form-locking engagement with the ring by radial claws and recesses for pressure-tight closing of the container, the lid being a fitting for the discharge from below Has pressure in the container.
  • Bayonet closures for containers are used successfully in many areas. In connection with fire extinguishers, it has generally been preferred for safety reasons to screw a lid onto the edge of the container in order to prevent the lid from being opened quickly.
  • a disadvantage of such screw closures is the fact that the containers sealed in this way generally only fully seal when an internal pressure occurs and that, in the event of an existing residual pressure inside the container, the threads are pressed against one another as far as screwing on that a more secure one Pressure equalization is not guaranteed.
  • a screw cap can therefore still lead to an unintentional abrupt lifting after leaving the last thread if there is residual pressure inside.
  • the invention now aims to develop a bayonet lock of the type mentioned, as it is particularly for devices which can be put under pressure similar to a fire extinguisher and which allow the contents of the container to be discharged under pressure via a corresponding fitting, so that the container is quick and safe can be opened to enable a new filling and that the container ensures complete tightness in the unpressurized state as well as in a state in which the container contents are pressurized.
  • This is particularly related to harmful or otherwise questionable container contents required for storage and transport.
  • the bayonet lock according to the invention essentially consists in the radial recesses being stepped in the circumferential direction, in that the ring rigidly connected to the edge of the opening delimits an essentially cylindrical outer surface, that with the cover a plunging into the outer surface when closing tubular approach is connected, that the tubular approach has a circumferential seal, that the ring has a radial relief bore and / or groove and that the sealing element releases the relief bore and / or groove upon engagement of the claws in the first stage of the recesses and in the second stage of the recesses sealingly smoothed.
  • the design is such that the cap can first be moved into a first position without any significant effort, from which it automatically performs a short stroke to the outside when there is residual pressure, while at the same time a stroke Pressure equalization in the radial direction can take place to the outside, so that any hydraulic fluid or pressurized gases that may still be present flow out laterally.
  • the essentially cylindrical outer surface into which the tubular extension with the sealing element is to be immersed is preferably formed by a conical surface tapering towards the interior of the container.
  • the cover can have inwardly projecting claws and the ring on its outer circumference has the radially stepped recesses.
  • the design is advantageously made such that the cover carries a spring-loaded releasable radial locking pin which can be locked in the closed position with a recess in the ring.
  • the recess of the ring for locking the locking pin can be formed by the relief bore and / or groove.
  • the design is advantageously made such that the claws of the cover are arranged at uneven central angles distributed over the circumference, preferably in the Position of the cover for pivoting the same into a first position corresponding to the first step of the recesses, an inclined surface, preferably with generators pointing in the radial direction, is aligned in the axial direction with the locking pin, and the locking pin when the cover is rotated on the outside of the ring is supported.
  • the cover preferably has at least one radial relief bore above the claw plane.
  • the circumferential sealing element connected to the tubular extension releases the relief bore or relief groove, the medium escaping via this relief bore or relief groove can escape unhindered via the radial bore of the cover, with the direction in which the medium escapes through the relief bore.
  • the training is preferably such that three claws and stepped grooves or recesses are provided.
  • FIG. 1 shows a bayonet catch according to the invention for use in a fire extinguisher
  • 2 shows the ring rigidly connected to the container in plan view and 3, 4, 5 Cuts along lines III-III, IV-IV, VV of Fig.2
  • 6 the ring in the rolled-up state
  • 7 shows the cover of the closure in plan view
  • 8 shows a section along the line VIII-VIII of FIG. 7
  • FIG. 9 shows a section along the line IX-IX of FIG. 7 with the shoulder inserted.
  • a bayonet lock 1 is used for the pressure-tight closure of a fire extinguisher 2.
  • the lid 3 of the closure 1 has a fitting 4 for dispensing the pressurized container contents.
  • a radial locking pin 5 is arranged on the outer circumference of the cover 3, which is biased by a leaf spring 6 via screws 7 and is intended to prevent the container from being opened unintentionally.
  • the ring 8 rigidly connected to the edge of the opening of the container 2, which together with the cover 3 forms the bayonet catch 1.
  • radial recesses 9 are arranged, which are designed in a stepped manner, as indicated by the dashed lines.
  • the ring 8 has a relief groove 10, which is arranged such that when the cover 3 is positively engaged with the ring 8 in the first stage of the recesses 9, the relief groove 10 is released and is only sealingly ground in the second stage.
  • an inclined surface 11 is arranged on the ring 8 in the attachment position of the cover 3 on the ring 8 in the axial direction in alignment with the locking pin 5.
  • the relief groove 10 also serves as a latching opening for the locking pin 5 when the cover 3 is rotated in the second stage of the recesses 9 until they stop.
  • the ring 8 has a stepped surface 12 on its inner circumference.
  • FIG. 3 shows a second step of a recess 9 and the inclined surface arranged above it 11.
  • Fig.5 shows a section through the relief groove 10 of the ring 8, the depth c is in any case less than the distance d from the upper edge of the second step of the recess 9 to the upper edge of the ring 8, to provide a sealing closure when the cover is snapped into place 3 to ensure in the second stage of the recesses 9 via a sealing element arranged on the cover, which is pressed against the outer surface 14 of the ring 8.
  • the stepped recesses 9 for receiving the claws of the cover 3 can be clearly seen.
  • the unequal distance e, f between the recesses corresponds to the unequal center angles of the claws arranged on the cover.
  • the height of the steps of the recesses 9 is denoted by g.
  • claws 15 are indicated by dashed lines on the cover 3, which can be positively engaged with the recesses 9 of the ring 8.
  • the claws 15 are arranged in unequal central angles and on the circumference of the cover 3, which ensures that the cover 3 can only be placed in one position in the recesses 9 which are likewise provided on the ring 8 at unequal intervals e, f.
  • 16 denotes the bore for receiving the locking pin 5 and 17 bores for fixing the screws 7 for pretensioning the locking pin via the leaf spring.
  • the Central opening 18 of the lid 3 serves to receive a tubular extension which projects into the interior of the container.
  • FIG. 9 shows the lid 3 with the tubular extension 19 which projects into the interior of the container when the lid is closed.
  • the stepped surface 20 of the extension 19 allows with the stepped surface 12 of the ring 8 a precise centering of the lid in the ring 8.
  • the sealing element 21 which can be pressed against the conical outer surface 14 of the ring 8, the container becomes in the form of positive engagement of the claws 15 in the second stage of the recesses 9 a sealing closure of the container 2 is reached.
  • the distance k of the sealing element 21 from the lower edge of the cover 3 must be selected larger than the depth c of the relief groove 10 in order to ensure a secure closure.
  • the distance k must be less than c and g in order to ensure at least partial opening of the relief groove 10 and onto it when the cover 3 is raised from the second to the first step of the recesses 9, this displacement movement exactly corresponding to the step height g Way to enable any pressure equalization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Closures For Containers (AREA)
EP19860890310 1985-11-12 1986-11-12 Joint à baionnette pour couvercle d'extincteur Expired - Lifetime EP0222736B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT328585A AT388103B (de) 1985-11-12 1985-11-12 Bajonettverschluss fuer behaelter, insbesondere in feuerloeschgeraeten
AT3285/85 1985-11-12

Publications (3)

Publication Number Publication Date
EP0222736A2 true EP0222736A2 (fr) 1987-05-20
EP0222736A3 EP0222736A3 (en) 1988-10-12
EP0222736B1 EP0222736B1 (fr) 1991-04-24

Family

ID=3548205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860890310 Expired - Lifetime EP0222736B1 (fr) 1985-11-12 1986-11-12 Joint à baionnette pour couvercle d'extincteur

Country Status (3)

Country Link
EP (1) EP0222736B1 (fr)
AT (1) AT388103B (fr)
DE (1) DE3678901D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022208A1 (fr) * 1992-05-02 1993-11-11 SCHäFER WERKE GMBH Fermeture de surete pour des raccordements de recipients
DE202009014607U1 (de) * 2009-10-29 2011-03-10 Jofo Pneumatik Gmbh Flaschenanschlusssystem für ein Auslösegerät
EP3285955A4 (fr) * 2015-04-24 2018-09-12 Hubbell Incorporated Moules de soudure par réaction exothermique, cartouches contenant du métal d'apport pour ces moules, et procédés d'utilisation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665028A (en) * 1950-04-07 1954-01-05 Culligan Inc Closure assembly for tanks and other containers
GB1047122A (en) * 1964-08-06 1966-11-02 British Oxygen Co Ltd Safety pressure disconnect device for pressure vessels
GB1104001A (en) * 1964-12-09 1968-02-21 Eugene Joseph Treanor Closures for containers
CH516446A (de) * 1971-01-28 1971-12-15 Oskar Krieger Fa Druckgefäss mit einem Druckbehälter, einer Sicherheitsvorrichtugn und einem Deckel
GB1302202A (fr) * 1970-01-02 1973-01-04
US4444327A (en) * 1983-03-11 1984-04-24 Peter Hedgewick Tight vial assembly with one-piece cap

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407787A1 (de) * 1984-03-02 1985-09-12 Conrad Engelke GmbH & Co KG, 3000 Hannover Bajonettverschluss fuer den verschwenk- und verdrehbaren deckel eines druckkessels

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665028A (en) * 1950-04-07 1954-01-05 Culligan Inc Closure assembly for tanks and other containers
GB1047122A (en) * 1964-08-06 1966-11-02 British Oxygen Co Ltd Safety pressure disconnect device for pressure vessels
GB1104001A (en) * 1964-12-09 1968-02-21 Eugene Joseph Treanor Closures for containers
GB1302202A (fr) * 1970-01-02 1973-01-04
CH516446A (de) * 1971-01-28 1971-12-15 Oskar Krieger Fa Druckgefäss mit einem Druckbehälter, einer Sicherheitsvorrichtugn und einem Deckel
US4444327A (en) * 1983-03-11 1984-04-24 Peter Hedgewick Tight vial assembly with one-piece cap

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022208A1 (fr) * 1992-05-02 1993-11-11 SCHäFER WERKE GMBH Fermeture de surete pour des raccordements de recipients
US5617969A (en) * 1992-05-02 1997-04-08 Schafer Werke Gmbh Safety lock for container connections
DE202009014607U1 (de) * 2009-10-29 2011-03-10 Jofo Pneumatik Gmbh Flaschenanschlusssystem für ein Auslösegerät
EP3285955A4 (fr) * 2015-04-24 2018-09-12 Hubbell Incorporated Moules de soudure par réaction exothermique, cartouches contenant du métal d'apport pour ces moules, et procédés d'utilisation
US10239162B2 (en) 2015-04-24 2019-03-26 Hubbell Incorporated Exothermic reaction welding molds, weld-metal containing cartridges for such molds, and methods of use
US11358242B2 (en) 2015-04-24 2022-06-14 Hubbell Incorporated Exothermic reaction welding molds, weld-metal containing cartridges for such molds, and methods of use
US11597041B2 (en) 2015-04-24 2023-03-07 Hubbell Incorporated Exothermic reaction welding molds, weld-metal containing cartridges for such molds, and methods of use

Also Published As

Publication number Publication date
DE3678901D1 (de) 1991-05-29
EP0222736B1 (fr) 1991-04-24
ATA328585A (de) 1988-10-15
AT388103B (de) 1989-05-10
EP0222736A3 (en) 1988-10-12

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