EP1566223B1 - Handsprühpistole und zugehöriger Becher - Google Patents

Handsprühpistole und zugehöriger Becher Download PDF

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Publication number
EP1566223B1
EP1566223B1 EP04009716A EP04009716A EP1566223B1 EP 1566223 B1 EP1566223 B1 EP 1566223B1 EP 04009716 A EP04009716 A EP 04009716A EP 04009716 A EP04009716 A EP 04009716A EP 1566223 B1 EP1566223 B1 EP 1566223B1
Authority
EP
European Patent Office
Prior art keywords
cup
union
gun
outflow
inflow
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
EP04009716A
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English (en)
French (fr)
Other versions
EP1566223A3 (de
EP1566223A2 (de
Inventor
Marco G. Vicentini
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.)
Anest Iwata Europe SRL
Original Assignee
Anest Iwata Europe 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 Anest Iwata Europe SRL filed Critical Anest Iwata Europe SRL
Publication of EP1566223A2 publication Critical patent/EP1566223A2/de
Publication of EP1566223A3 publication Critical patent/EP1566223A3/de
Application granted granted Critical
Publication of EP1566223B1 publication Critical patent/EP1566223B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus

Definitions

  • the present invention relates to manual guns for the spraying application of coating substances such as paints, chemicals and the like.
  • the invention relates to a spray gun of the type comprising a body having a union for the inflow of a substance to be sprayed, whereto is able to be connected a cup containing the substance to be sprayed and having an outflow union designed to be coupled with said inflow union through removable connecting means.
  • the removable coupling between the inflow union of the gun body and the outflow union of the cup is achieved by means of a screw-on system: more in particular, through an external thread whereof is provided the inflow union of the gun body whereon is screwed an internal thread of the outflow union of the cup or, alternatively, by means of an external thread of the outflow union of the cup which is screwed into an inner thread of the inflow union of the gun body.
  • US-5,035,339 discloses a combination of a manual spray gun and a cup containing the substance to be sprayed corresponding to the pre-characterizing part of claim 1, i.e. comprising a bayonet coupling between a pair of axial arms projecting from a closure of the spray gun and formed with respective slots to be hooked into a corresponding pair of lateral projections of the cup formed with respective rectangular holes, and a rotatable thumb bolt is provided to positively secure the bayonet coupling. Since the sprayer closure is of a conventional type and the cup consists of a plastic canister which is still easily reproducible, the above mentioned second problem remains open.
  • the object of the present invention is to provide a simple, economical and functional solution to both technical problems described above.
  • the number 1 designates the body of a gun for spray painting, provided posteriorly with a grip 2 and anteriorly with a generally conventional nebuliser nozzle 3.
  • a tubular boss 4 communicating with a feeding conduit, not shown, connected in known fashion to the atomising nozzle 3.
  • a tubular inflow union 5 adapted for the removable sealed connection of a cup 6 containing the substance to be sprayed by means of the gun 1.
  • the substance to be sprayed contained in the cup 6 is in use fed to the gun by gravity, placed in upside down position above the gun 1.
  • the inflow union 5 has a cylindrical terminal portion 7, an intermediate portion with conical inner surface 8 and an initial cylindrical portion 9 with narrowed conformation, i.e. having reduced cross section with respect to that of the cylindrical terminal portion 7.
  • the edge of the free end of the narrowed initial portion 9 has an annular inner narrowing with conical surface 10.
  • the cylindrical terminal portion 7 is formed with a pair of diametrically opposite slits 11, each whereof has, as shown in detail in Figure 4, a general "L" shape with an axially directed upper segment 12 and an inclined or generally horizontal lower segment 13.
  • the reference 14 designates a ring nut which coaxially surrounds in rotatable fashion the cylindrical terminal portion 7 of the inflow union 5 and is axially movable relative thereto for a downwards travel, i.e. the initial narrowed portion 9, by an extend that is limited inferiorly by an arresting ring 15.
  • the ring nut 14 is formed on its inner wall with an annular groove 16 communicating with a pair of diametrically opposite axial grooves 17, whereof one is shown in Figure 3.
  • the cup 6 shown in Figure 1 is generally conventional and consists of a container of generally cylindrical shape, for example metallic or made of moulded plastic material, provided at an end with a removable lid 18 which may have an opening and aerial valve 19, and formed at the opposite end with a generally funnel shaped bottom 20 provided with an axial outflow union 22 able to be coupled in sealed, removable fashion with the inflow union 5 of the gun body 1, in the manner made more readily apparent below.
  • the outflow union 22 has a complementary shape to the inflow union 5: in detail, it comprises a broadened cylindrical initial portion 23, complementary to the final portion 7 of the inflow union 5, an intermediate portion with conical outer surface 34 complementary to the conical inner surface portion 8 of the inflow union 5, and a cylindrical terminal tang 24, complementary to the initial portion 9 of the inflow union 5.
  • the terminal tan 24 of the outflow union 22 has at its free end an externally enlarged annular edge 25 with a conical outer surface 26 complementary to the conical surface 10 of the inflow union 5.
  • one or the other of the conical surfaces 10 or 26 can be provided with a circumferential throat for the insertion of a sealing O-ring made of elastomeric material, not shown in the drawings.
  • said sealing O-ring is optional.
  • the reference number 27 designates a radial pin or stake which traverses the broadened cylindrical initial portion 23 of the outflow union 22 and whose opposite ends project externally thereto.
  • the through pin 27 could be replaced with two distinct and separate pins, projecting outside two diametrically opposite areas of the initial cylindrical portion 23, in a wholly equivalent manner at the opposite ends of said through pin 27.
  • a single pin could also suffice, projecting radially outside the initial cylindrical portion 23.
  • the cylindrical terminal portion 7 of the inflow union 5 may be provided with a single L shaped slit 11 and, similarly, the ring nut 14 may be provided with a single axial groove 17.
  • Said bayonet coupling is in practice constituted at one side by the opposite projecting end of the diametrical pin 27 of the outflow union 22, and at the other by the L shaped slits 11 of the inflow union 5, whilst the safety device is constituted by the rotatable and slidable ring nut 14.
  • connection can be improved as a result of the yielding and of the consequence elastic reaction of the optional sealing O-ring inserted between the conical surfaces 10 and 26, or with the aid of possible additional elastic means.
  • the presence of the sealing ring is not strictly necessary, although it is preferable also for the purposes of a more secure hermetic seal between the unions 22 and 5.
  • the bayonet coupling system with positive safety locking described above is applicable not only to conventional cups 6, but also to disposal cups, such as the one designated by the reference number 28 in Figure 4, in which parts that are identical or similar to those already described above are designated by the same numerical references.
  • the cup 28 comprises a disposable container 29, normally made of moulded plastic material, and the outflow union 22 is borne by a substantially funnel shaped bottom 30 separated from the container 29 and connected in removable fashion thereto by means of a ring nut 31.
  • the arrangement of the cup 28 could be, for example, of the type described and illustrated in document EP 1424135 by the same Applicant, not published as of the priority date of the present application. Otherwise, it may be of the type currently produced and marketed by the same Applicant with the commercial name "Mix & Spray Cup".
  • the funnel shaped bottom 30 with the outflow union 22 may in practice constitute an integral part of the body of the gun 1, in the sense that it may remain permanently coupled to the gun by means of the bayonet coupling and the safety locking between the unions 22 and 5.
  • the funnel shaped bottom 30 can be disposable like the container 29: in this case, the outflow union 22 may also be, with the or with each projecting radial pin for the engagement of the or of each L-shaped slit 11, integrally formed by moulding of plastic material with said bottom 30.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)

Claims (9)

  1. Kombination aus einer Handspritzpistole und einem Behälter (6; 28), der die zu sprühende Substanz enthält, wobei die Spritzpistole einen Körper (1) aufweist, der einen Einströmanschluss (5) für die zu sprühende Substanz aufweist, der derart ausgelegt ist, dass er mit einem Ausströmanschluss (22) des Behälters (6; 28) über ein lösbares Verbindungsmittel verbindbar ist, das einen Bajonettverschluss (27, 11) aufweist, mit dem eine Sicherheitsvorrichtung (14) zum positiven Feststellen des Bajonettverschlusses (27, 11) in dem verbundenen Zustand wirkverbunden ist,
    dadurch gekennzeichnet, dass:
    - der Ausströmanschluss (22) des Behälters (6, 28) aus einem rohrförmigen Körper mit einem verbreiterten zylindrischen Anfangsbereich (23), einem Zwischenbereich mit einer konischen Außenfläche (34) und einem verjüngten Endansatz (24) besteht, wobei der verbreiterte zylindrische Anfangsbereich (23) wenigstens einen radialen Pfosten (27) trägt, der auswärts vorsteht,
    - der Einströmanschluss (5) der Spritzpistole (1) einen zylindrischen Endbereich (7), einen Zwischenbereich mit einer konischen Innenfläche (8) und einen verjüngten Anfangsbereich (9) aufweist, die derart ausgelegt sind, dass sie entsprechend mit dem verbreiterten zylindrischen Anfangsbereich (23), dem Zwischenbereich mit der konischen Außenfläche (34) und dem verjüngten Endansatz (24) des Ausströmanschlusses (22) mittels Formschluss in Eingriff bringbar sind, wobei der zylindrische Endbereich (7) des Einströmanschlusses (5) mit wenigstens einem L-förmigen Schlitz (11) ausgebildet ist, der mit dem wenigstens einem radialen Pfosten (27) des Behälters (6, 28) in Eingriff bringbar ist, um den Bajonettverschluss (27, 11) zu erzeugen,
    - die Sicherheitsvorrichtung einer Ringnut (14) aufweist, die koaxial zu dem Einströmanschluss (5) der Spritzpistole (1) drehbar und axial an der Außenseite des zylindrischen Endbereiches (7) derselben gleitbar ist, um sich um ein vorbestimmtes Maß zu bewegen, wobei die Ringnut (14) wenigstens eine Innennut (16, 17) aufweist, um mit dem wenigstens einen radialen Pfosten (27) axial und drehend in Eingriff zu kommen, um die Drehbewegung zwischen dem Einströmanschluss (5) und dem Ausströmanschluss (22) in dem verbundenen Zustand des Bajonettverschlusses (27, 11) zu arretieren.
  2. Kombination aus einer Spritzpistole und einem Behälter nach Anspruch 1,
    dadurch gekennzeichnet, dass
    der verbreiterte zylindrische Anfangsbereich (23) des Ausströmanschlusses (22) des Behälters (6; 28) ein Paar von vorstehenden radialen Pfosten (27) aufweist, die diametral einander gegenüber angeordnet sind, wobei der zylindrische Endbereich (7) des Spritzpistolenkörpers (1) mit einem Paar von entsprechenden L-förmigen Schlitzen (11) ausgebildet ist, und wobei die Ringmutter (14) ein Paar von entsprechenden Innennuten (16, 17) aufweist.
  3. Kombination aus einer Spritzpistole und einem Behälter nach Anspruch 2,
    dadurch gekennzeichnet, dass
    die vorstehenden radialen Pfosten durch das Ende eines Stiftes (27) definiert sind, der durch den verbreiterten zylindrischen Anfangsbereich (23) des Ausströmanschlusses (22) eingesetzt ist.
  4. Kombination aus einer Spritzpistole und einem Behälter nach Anspruch 1,
    dadurch gekennzeichnet, dass
    der verjüngte Endansatz (24) des Ausströmanschlusses (22) des Behälters (6; 28) eine außen vergrößerte ringförmige Endkante (25) aufweist, und dass der verjüngte Anfangsbereich (9) des Einströmanschlusses (5) des Spritzpistolenkörpers (1) eine komplementäre innere, ringförmige Verjüngung aufweist, um die außen vergrößerte ringförmige Endkante (25) aufzunehmen.
  5. Kombination aus einer Spritzpistole und einem Behälter nach Anspruch 4,
    dadurch gekennzeichnet, dass
    die außen vergrößerte ringförmige Endkante (25) und die komplementäre innere ringförmige Verjüngung entsprechende konische Flächen (26, 10) aufweisen.
  6. Kombination aus einer Spritzpistole und einem Behälter nach Anspruch 4 oder 5,
    dadurch gekennzeichnet, dass ein elastischer Dichtring zwischen der außen vergrößerten ringförmigen Endkante (25) und der inneren ringförmigen Verjüngung eingesetzt ist.
  7. Kombination aus einer Spritzpistole und einem Behälter nach einem oder mehreren der vorhergehenden Ansprüche, bei welcher der Ausströmanschluss (22) durch einen im Wesentlichen trichterförmigen Boden (20) des Behälters (6) getragen wird,
    dadurch gekennzeichnet, dass
    der Boden (20) einteilig mit dem Behälter (6) ausgebildet ist.
  8. Kombination aus einer Spritzpistole und einem Behälter nach einem oder mehreren der Ansprüche 1 bis 6, bei welcher der Ausströmanschluss (22) von einem im Wesentlichen trichterförmigen Boden (30) des Behälters (28) getragen wird,
    dadurch gekennzeichnet, dass
    der Boden (30) in lösbarer Weise mit dem Behälter (28) verbunden ist.
  9. Kombination aus einer Spritzpistole und einem Behälter nach einem oder mehreren der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    der Behälter (28) ein Einwegbehälter ist.
EP04009716A 2003-12-05 2004-04-23 Handsprühpistole und zugehöriger Becher Expired - Lifetime EP1566223B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO20030981 2003-12-05
IT000981A ITTO20030981A1 (it) 2003-12-05 2003-12-05 Pistola manuale a spruzzo e relativa tazza.

Publications (3)

Publication Number Publication Date
EP1566223A2 EP1566223A2 (de) 2005-08-24
EP1566223A3 EP1566223A3 (de) 2006-02-15
EP1566223B1 true EP1566223B1 (de) 2007-11-07

Family

ID=34708537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009716A Expired - Lifetime EP1566223B1 (de) 2003-12-05 2004-04-23 Handsprühpistole und zugehöriger Becher

Country Status (5)

Country Link
EP (1) EP1566223B1 (de)
AT (1) ATE377454T1 (de)
DE (1) DE602004009890T2 (de)
ES (1) ES2295724T3 (de)
IT (1) ITTO20030981A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7798427B2 (en) 1997-01-24 2010-09-21 3M Innovative Properties Company Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith
EP3888800A1 (de) * 2020-03-30 2021-10-06 Robert Bosch GmbH Medienspeichervorrichtung, medienauftragungssystem mit einer medienspeichervorrichtung und verfahren zu einem befüllen einer medienspeichervorrichtung
US11958069B2 (en) 2013-12-05 2024-04-16 3M Innovative Properties Company Container for a spraying device
US12508611B2 (en) 2016-01-15 2025-12-30 3M Innovative Properties Company Connector system for hand-held spray guns

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2450108T3 (pl) 2004-12-16 2017-04-28 Saint-Gobain Abrasives, Inc. Zespół zbiornika dostarczającego ciecz i wkładki do pistoletów natryskowych
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
EP2029285B1 (de) 2006-06-20 2012-11-21 Saint-Gobain Abrasives, Inc. Flüssigkeitszufuhranordnung
BE1018968A3 (fr) * 2009-10-19 2011-12-06 Omniform S A Nv Ensemble d'un couvercle et d'un organe de liaison destine a faire partie d'un pistolet a fluide.
US8998018B2 (en) 2011-05-06 2015-04-07 Saint-Gobain Abrasives, Inc. Paint cup assembly with an extended ring
ES2739299T3 (es) 2011-06-30 2020-01-30 Saint Gobain Abrasives Inc Conjunto de envase de pintura
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
CN119387066A (zh) 2016-01-15 2025-02-07 3M创新有限公司 用于手持式喷枪的宽口流体连接器
CN119216128A (zh) 2016-01-15 2024-12-31 3M创新有限公司 一种喷枪杯
WO2017123715A1 (en) * 2016-01-15 2017-07-20 3M Innovative Properties Company Button-lock fluid connector for hand-held spray guns
EP3402602B2 (de) 2016-01-15 2025-04-16 3M Innovative Properties Company Spritzpistolenbecher, behälter, deckel und verfahren zur verwendung
US10689165B2 (en) 2016-01-15 2020-06-23 3M Innovative Properties Company Reservoir systems for hand-held spray guns and methods of use

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236459A (en) * 1963-12-16 1966-02-22 Thomas P Mcritchie Apparatus for spraying materials
US3381845A (en) * 1967-01-03 1968-05-07 Roderick B. Macdonald Disposable plastic container for spray guns
US5035339A (en) * 1987-04-28 1991-07-30 Vmc Industries, Inc. Universal sprayer canister
WO1998043894A1 (en) * 1997-04-01 1998-10-08 Soudal Coupling

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7798427B2 (en) 1997-01-24 2010-09-21 3M Innovative Properties Company Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith
US7798426B2 (en) 1997-01-24 2010-09-21 3M Innovative Properties Company Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith
US7798425B2 (en) 1997-01-24 2010-09-21 3M Innovative Properties Company Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith
US8002200B2 (en) 1997-01-24 2011-08-23 3M Innovative Properties Company Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith
US8424780B2 (en) 1997-01-24 2013-04-23 3M Innovative Properties Company Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith
US8628026B2 (en) 1997-01-24 2014-01-14 3M Innovative Properties Company Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith
US8955770B2 (en) 1997-01-24 2015-02-17 3M Innovative Properties Company Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith
US9211553B2 (en) 1997-01-24 2015-12-15 3M Innovative Properties Company Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith
US11958069B2 (en) 2013-12-05 2024-04-16 3M Innovative Properties Company Container for a spraying device
US12533693B2 (en) 2013-12-05 2026-01-27 3M Innovative Properties Company Container for a spraying device
US12508611B2 (en) 2016-01-15 2025-12-30 3M Innovative Properties Company Connector system for hand-held spray guns
EP3888800A1 (de) * 2020-03-30 2021-10-06 Robert Bosch GmbH Medienspeichervorrichtung, medienauftragungssystem mit einer medienspeichervorrichtung und verfahren zu einem befüllen einer medienspeichervorrichtung

Also Published As

Publication number Publication date
ES2295724T3 (es) 2008-04-16
EP1566223A3 (de) 2006-02-15
EP1566223A2 (de) 2005-08-24
DE602004009890D1 (de) 2007-12-20
DE602004009890T2 (de) 2008-08-28
ATE377454T1 (de) 2007-11-15
ITTO20030981A1 (it) 2005-06-06

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