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EP1084809B1 - Spritzpistole zum Austragen von einem Gemisch aus Polyurethan und Gas - Google Patents

Spritzpistole zum Austragen von einem Gemisch aus Polyurethan und Gas Download PDF

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Publication number
EP1084809B1
EP1084809B1 EP00119259A EP00119259A EP1084809B1 EP 1084809 B1 EP1084809 B1 EP 1084809B1 EP 00119259 A EP00119259 A EP 00119259A EP 00119259 A EP00119259 A EP 00119259A EP 1084809 B1 EP1084809 B1 EP 1084809B1
Authority
EP
European Patent Office
Prior art keywords
rod
gun
delivery
end portion
coupled
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.)
Expired - Lifetime
Application number
EP00119259A
Other languages
English (en)
French (fr)
Other versions
EP1084809A1 (de
Inventor
Riccardo Rigolio
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.)
Rigo Srl
Original Assignee
Rigo Srl
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 Rigo Srl filed Critical Rigo Srl
Publication of EP1084809A1 publication Critical patent/EP1084809A1/de
Application granted granted Critical
Publication of EP1084809B1 publication Critical patent/EP1084809B1/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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16—Actuating means
    • B65D83/164—Actuators comprising a manually operated valve and being attachable to the aerosol container, e.g. downstream a valve fitted to the container; Actuators associated to container valves with valve seats located outside the aerosol container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0894—Gun with a container which, in normal use, is located above the gun

Definitions

  • the present invention relates to a delivery gun, which has been specifically designed for delivering polyurethane to which a propelling and foaming gas has been added.
  • a delivery gun is conventionally used, which allows to deliver or meter the polyurethane material held in a holding vessel together with the foaming gas.
  • the product, exiting the gun in the form of a foam, can be used and applied in an adjustable manner.
  • Prior polyurethane delivery guns comprise a gun body, to which a polyurethane bottle can be coupled, which communicated with the inside of a tubular element perforated at its free end portions and therethrough a sliding rod is caused to pass.
  • an operator can, by operating a trigger lever, coupled to the rod, easily adjust the delivered or metered polyurethane amount.
  • the delivery gun comprises a bottom element which can be screw coupled to the body of the gun, thereby, by screwing on or off said bottom element, the position of the latter with respect to the gun body can be easily adjusted, thereby also adjusting the limit of stroke position of the rod.
  • the aim of the present invention is to provide such a delivery or metering gun, allowing to overcome the above mentioned drawbacks.
  • a main object of the present invention is to provide such a delivery gun including an improved system for adjusting the limit of stroke position of the rod thereof.
  • a delivery gun specifically designed for delivering foamed polyurethane, comprising a gun body, including a delivery tubular element, communicating with a material to be delivered vessel, and adapted to be coupled to said body, a sliding rod longitudinally sliding in said tubular element and having a conical end portion for engaging a delivery opening, said rod being adapted to disengage said opening during a backward movement thereof, the stroke of said rod being limited by end of stroke limit means and being characterized in that said end of stroke limit means comprise a rotary element, coupled to said body, and adapted to be driven from the outside, said rotary element being kinematically coupled to an abutment element, slidable with respect to said body, due to the rotary movement of said rotary element, and adapted to define the rear limit of stroke position of said rod.
  • the delivery gun comprises a gun body 2 provided with a fitting 3 for a vessel 4 adapted to hold therein a material to be delivered or metered, for example a polyurethane and foaming gas bottle.
  • an extension element 5 can be coupled, said extension element comprising a tubular element including a free end portion with a delivery opening 6 having a conical longitudinal cross-section.
  • a delivery rod 7 is arranged in the cavity of the tubular element 5 and can longitudinally slide therein.
  • said rod 7 has a conical front end portion, for shutting-off the delivery opening 6 in its closure position and, by backward sliding, being adapted to adjustably open the delivery opening 6, due to the tapering or conicity of said rod.
  • the back sliding of the rod 7 is controlled by an operating or driving lever 9, coupled to the gun body 2 and which can be manually operated by the user, gripping the delivery gun by a gun grip portion 10.
  • the rear end portion 11 of the rod 7 is adapted to engage in a blind hole 13 of an abutment element 12, which can slide in the gun body 2.
  • An annular recess 14 of the abutment element 12 is adapted to receive therein an end portion of a coil spring 15 coaxial with the rod 7 and having the other end portion thereof abutting against a flange 16 of the rod 7.
  • the abutment element 12 can slide in the gun -body 2, but it cannot turn about its longitudinal axis, through guides 17 formed in the gun body 2 and is provided with a threaded portion 18, adapted to engage a ring-nut 20 formed in a rotary element 19.
  • the latter comprises a bottom element, on the outside of the gun body 2, and which can be turned or rotated by the operator in order to axially drive or displace the abutment element 12 thereby adjusting the end of stroke position of the rod 7.
  • the rotary element 19, in particular, can be snap assembled on the gun body 2, to be able of rotating, without disengaging or longitudinally moving.
  • the operation of the delivery gun according to the present invention would be very simple.
  • the maximum amount of product which can be delivered or metered will depend on the end of stroke position of the rod 7, which can be easily adjusted by turning the rotary element 19.
  • the latter can comprise signalling elements for signalling the end of stroke or limit position, such as notches or other indicating marks, allowing a user to easily detect the position of the adjusting element.
  • the invention fully achieves the intended aim and objects, since the subject delivery gun can be easily adjusted by a bottom element for adjusting the maximum delivered amount, said bottom element turning with respect to the gun body, without threading on or off.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Coating Apparatus (AREA)

Claims (4)

  1. Spritzpistole (1) zum Austragen von Polyurethanschaum, die einen Pistolenkörper (2) mit einem rohrförmigen Austragselement (5), das mit einem auszutragendes Material enthaltenden Behälter (4) in Verbindung steht und das so angepasst ist, dass es mit dem Körper (2) verbunden werden kann, und eine in Längsrichtung in dem rohrförmigen Element entlang gleitend bewegbare Gleitstange (7) mit einem konischen Endabschnitt zur Ineingriffnahme einer Austragsöffnung (6) aufweist, wobei die Stange (7) so angepasst ist, dass sie die Öffnung (6) während einer Rückwärtsbewegung derselben freigibt, wobei der Hub der Stange (7) durch Hubendstellungs-Begrenzungseinrichtungen begrenzt ist,
    dadurch gekennzeichnet, dass
    die Hubendstellungs-Begrenzungseinrichtungen ein mit dem Körper (2) verbundenes Drehelement (19) umfassen, das so angepasst ist, dass es von außen angetrieben werden kann, wobei das Drehelement (19) kinematisch mit einem Anschlagelement (12) verbunden ist, das im Verhältnis zu dem Körper (2) gleitend bewegbar ist, wenn das Drehelement manuell mit einer Drehbewegung angetrieben wird, und so angepasst ist, dass es die hintere Begrenzung der Hubposition der Stange (7) festlegt.
  2. Spritzpistole (1) nach Anspruch 1,
    dadurch gekennzeichnet, dass
    die Stange (7) mit einem hinteren Endabschnitt versehen ist, der so angepasst ist, dass er in einem Sackloch (13) des Anschlagelementes (12) in Eingriff geht, und dass das Anschlagelement (12) eine ringförmige Ausnehmung (14) aufweist, um darin einen Endabschnitt einer koaxial zu der Stange (7) verlaufenden Spiralfeder (15) aufzunehmen, wobei der andere Endabschnitt der Spiralfeder (15) gegen einen Flansch (16) der Stange anliegt und dadurch die Positionierung der Stange (7) in ihrer Verschlussposition veranlasst.
  3. Spritzpistole (1) nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass
    das Anschlagelement (12) mittels in dem Pistolenkörper (2) ausgebildeter Führungen (17) gleitend bewegbar in dem Pistolenkörper (2) angeordnet ist, mit einem Gewindeabschnitt (18) zur Ineingriffnahme einer in dem Drehelement (19) ausgebildeten Ringmutter (20) versehen ist und sich nicht um seine Längsachse drehen kann.
  4. Spritzpistole (1) nach einem oder mehreren der vorangegangenen Ansprüche,
    dadurch gekennzeichnet, dass
    das Drehelement (19) Signalgeberelemente zum Anzeigen der Position des Anschlagelementes (12) umfasst.
EP00119259A 1999-09-15 2000-09-06 Spritzpistole zum Austragen von einem Gemisch aus Polyurethan und Gas Expired - Lifetime EP1084809B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI990573U 1999-09-15
IT1999MI000573U IT247533Y1 (it) 1999-09-15 1999-09-15 Pistola erogatrice particolarmente studiata per l'erogazione di poliur-etano miscelato con un gas espandente

Publications (2)

Publication Number Publication Date
EP1084809A1 EP1084809A1 (de) 2001-03-21
EP1084809B1 true EP1084809B1 (de) 2003-06-04

Family

ID=11382372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119259A Expired - Lifetime EP1084809B1 (de) 1999-09-15 2000-09-06 Spritzpistole zum Austragen von einem Gemisch aus Polyurethan und Gas

Country Status (4)

Country Link
EP (1) EP1084809B1 (de)
AT (1) ATE242095T1 (de)
DE (1) DE60003130D1 (de)
IT (1) IT247533Y1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101767073B (zh) * 2009-01-06 2012-05-30 郑英 带有流量调节装置的发泡枪
CN202983939U (zh) * 2009-10-08 2013-06-12 王良 具有安全控制机构的发泡工具
CN102327850B (zh) * 2011-04-28 2013-05-22 梁海军 发泡枪及其装配方法
EP2762235A1 (de) * 2013-02-01 2014-08-06 Altachem N.V. Vorrichtung zur Abgabe von unter Druck stehenden Flüssigkeiten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518492A1 (de) * 1985-05-23 1986-11-27 Kopperschmidt-Mueller Gmbh & Co Kg, 4800 Bielefeld Spritzpistole
DE3710395A1 (de) * 1987-03-28 1988-10-13 Bruno Jesswein Spritzpistole fuer schaumstoff
DE4412282A1 (de) * 1994-04-09 1995-10-12 Ehrensperger C Ag Montageschaum-Pistole
US5687913A (en) * 1995-06-06 1997-11-18 Badger Air Brush Co. Air brush with paint flow regulating
IT1295040B1 (it) * 1997-09-19 1999-04-27 Rigo S R L Pistola autopulente per l'erogazione di schiuma di poliuretano espanso

Also Published As

Publication number Publication date
ATE242095T1 (de) 2003-06-15
IT247533Y1 (it) 2002-09-05
DE60003130D1 (de) 2003-07-10
EP1084809A1 (de) 2001-03-21
ITMI990573U1 (it) 2001-03-15
ITMI990573V0 (it) 1999-09-15

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