EP0899028B1 - Hebelbetätigtes Druckluft-Blasmundstück - Google Patents

Hebelbetätigtes Druckluft-Blasmundstück Download PDF

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Publication number
EP0899028B1
EP0899028B1 EP98420148A EP98420148A EP0899028B1 EP 0899028 B1 EP0899028 B1 EP 0899028B1 EP 98420148 A EP98420148 A EP 98420148A EP 98420148 A EP98420148 A EP 98420148A EP 0899028 B1 EP0899028 B1 EP 0899028B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
lever
blower according
valve
female element
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
EP98420148A
Other languages
English (en)
French (fr)
Other versions
EP0899028A1 (de
Inventor
Jean Jacques Lacroix
Christophe Laporte
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.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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 Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0899028A1 publication Critical patent/EP0899028A1/de
Application granted granted Critical
Publication of EP0899028B1 publication Critical patent/EP0899028B1/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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
    • 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

Definitions

  • the invention relates to a compressed air blow gun. controlled by an articulated lever.
  • blow guns whose sole function is to supply pressurized air.
  • blow guns which can be connected to portable tools. They then fulfill the function of removable pipe junction commonly called "quick coupling".
  • quick coupling When a tool is connected to such a blow gun, the operator is bothered by the presence of the control lever. This lever decreases the maneuverability of tools and can lead to inaccuracy operator gestures.
  • blow guns suitable for connection to tools are used mostly as quick couplers and at the end of post or at the end of the day, as blow guns. Consequently, the aforementioned inconvenience of operator discomfort is present most of the time, which is painful.
  • the invention relates to an air blow gun tablet controlled by a lever, characterized in that it comprises a substantially tubular body capable of cooperating with means of immobilization inside a female element quick coupling to hold said body in position in a central bore of said female element and a nozzle overall tubular able to move, by sliding inside of said body, a valve of said female element, sliding of said nozzle in said body being controlled by said the sink.
  • the blow gun of the invention constitutes a set removable intended to be mounted on the female element of a classic quick coupling and to be removed when a tool must be used. When the blow gun is disassembled, it does not interfere with the use of the tool, which is pleasant for the user. When the blow gun must be mounted, it is fitted into the female part of the fitting fast in the manner of a male end, that is to say so particularly easy.
  • the sliding of the nozzle inside of the tubular body of the blow gun of the invention allows to control the valve of the female element of the quick coupling and in particular to admit pressurized air inside nozzle for the aforementioned cleaning function. When the blowing operation is finished, the blower can be easily disconnected, eliminating any discomfort for the user.
  • the blow gun therefore transforms temporarily, quickly and cheaply, a fitting quick cleaning tool.
  • the lever is articulated around an axis supported by legs of the body, this axis being clipped into the legs.
  • This aspect of the invention makes it possible to envisage a removable nature of the blow gun while the lever articulation system is particularly simple.
  • a cam allows transform the rotational movement of the lever into a movement of translation of the nozzle.
  • the cam is further from the central axis of the nozzle than the ramp.
  • This aspect of the invention provides that, at the start of actuation of the lever, the reduction of the force is more important when the displacement of the nozzle is relatively slow, which overcomes the effort exerted on the valve of the female element by pressurized air.
  • the ramp can multiply the translation by approaching the axis center of the nozzle to obtain rapid opening of the valve. Thanks to this aspect of the invention, the opening movement is optimized in terms of efforts and opening speed.
  • the cam is arranged on a lug connecting part of the lever intended to be manipulated to the axis of articulation of the lever on the body. This contributes to the multiplier effect.
  • the nozzle door at its end intended to penetrate into the element female, a valve thrust ring.
  • This ring allows to adapt the outside diameter of the nozzle to that of the valve.
  • the nozzle can have an outside diameter of the order of 3 mm while the valve may have a larger diameter, from from 3 to 30 mm, depending on the type of female element of quick coupling and, in particular, its nominal pressure of job.
  • the nozzle is provided with a notch defining two receiving housings of an elastic tab of the body, this tab being arranged so that its end selectively enters one housing.
  • the movement of pivoting of the lever is limited by the support of this lever on the body or on the nozzle.
  • the body carries a stop, capable of cooperating with a corresponding part of the lever when the nozzle is moved towards the inside of the female element, and that the nozzle carries a stop, able to cooperate with a corresponding stop of the lever when the nozzle is moved out of the element female.
  • the body of the female element A with a quick coupling shown in Figure 1 consists of the assembly of two tubular parts, namely a main part 1 and a part rear 2, this assembly being operated by elastic snap-fastening.
  • An assembly formed by a tubular valve 3, a seat or seal 4, a valve holder 5 and a return spring 6 is held in place inside a central bore the of the part 1 thanks to part 2.
  • the valve holder 5 ensures the retention an O-ring 7 intended to fulfill a sealing function.
  • the valve 3 and the valve holder 5 can be produced in a single piece.
  • the body formed of elements 1 and 2 is surrounded by an operating sleeve 8 and an anterior sleeve 9, the sleeve 9 being snapped elastically inside sleeve 8.
  • a ring 10, called a locking ring, provided with longitudinal claws 10 has turned towards the front, that is to say to the left of FIG. 1, slides on the part 1.
  • the free end of each of the claws 10 a has a profiled head 10 b intended to be trapped behind an external radial shoulder of a male end piece intended to cooperate with the female element A.
  • the claws 10 a therefore constitute means for immobilizing a male part inside the female element A.
  • the blower B is intended to be mounted in the element A. It comprises a body 51 in the form of a tubular sleeve provided with a radial peripheral groove 52 intended to receive the heads 10 b of the claws 10 a , to as shown in Figure 1. In this position, the body 51 is firmly immobilized relative to the female element A.
  • a nozzle 54 in the form of a tube which can slide relative to the body 51.
  • a lever 55 is articulated on the body 51 thanks to a pin 56 clipped into two legs of which only one is visible in the figures with the reference 57.
  • a ring 63 having a radial face of diameter substantially equal to the exposed face of the valve holder 5.
  • the end 62 of the nozzle 54 drives the ring 63 which pushes the valve holder 5 to against the force of the spring 6.
  • This has the effect of remove the valve 3 from its seal 4 and allow circulation compressed air from the upstream pipe to the nozzle 54, which is represented by the flow arrow E.
  • the air gun remains in this air flow position compressed as long as the handle 58 remains pressed on the sleeve 8.
  • a notch 64 is provided on the outside of the nozzle 54 and defines two housings 65 and 66, for receiving the head 67 of an elastic tab 68 formed in the body 51.
  • the head 67 is in place in the housing 65, so that the elasticity of the tab 68 is opposed to a movement of the nozzle 54 to the left of FIG. 2.
  • the elasticity of the tab 68 makes it possible to create a reaction force to the valve closing force due to the spring 6. This construction improves user comfort blow gun if the user does not feel the entire thrust force due to the spring 6.
  • the head 67 of lug 68 is in place in housing 66, so that it is opposed to an untimely operation of the lever 55.
  • the insertion of the nozzle 54 towards the valve 3 can only result from user effort enough to move head 67 from tab 68 above notch 64. This avoids untimely opening of the blower.
  • a stop 69 is provided on the body 51 to limit the movement of the leg 60, and therefore of the lever assembly 55, around the axis 56. In the position of FIGS. 2 and 3, the tab 60 is in support against the stop 69.
  • the nozzle 54 carries a radial flange 70 intended to cooperate with a nose 71 of the lever 55 to limit the tilting movement of the lever 55 in the opposite direction at force F.
  • the flange 70 serves as a stop for the nose 71 of the lever 55.
  • the stops 69 and 70 make it possible to limit the amplitude of the pivoting of the lever 55 and, thereby, the displacement of the nozzle 54, this movement being moreover controlled elastically thanks to tab 68.
  • Blow gun B can be easily assembled and disassembled on element A like the male end of a fitting fast while it works particularly satisfactory.
  • blower B once disassembled of the female element A, constitutes a unitary assembly which can be stored without risk of disassembly.
  • the invention has been presented with the articulated lever 55 around an axis.
  • other means of controlling the sliding of the nozzle 54 in the body 51 can be used such as, in particular, an outer ring engaged with the nozzle.
  • This ring could include a straight ramp or helical to increase the force applied to the nozzle.

Landscapes

  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Reciprocating Pumps (AREA)
  • Cleaning In General (AREA)

Claims (10)

  1. Druckluft-Abblasevorrichtung (B), gesteuert durch einen Hebel (55), dadurch gekennzeichnet, dass sie einen im Wesentlichen rohrförmigen Körper (51), der geeignet ist, mit Mitteln zur Festlegung (10) im Inneren eines Schnellverbindungsstutzens (A) zusammenarbeiten, um den Körper in einer Mittelbohrung (1a) des Stutzens in Stellung zu halten und ein im Ganzen gesehen rohrförmiges Mundstück (54) umfasst, das geeignet ist, im Inneren des Körpers durch Gleiten ein Ventil (3) des Stutzens zu verschieben, wobei die gleitende Verschiebung des Mundstückes um Körper durch den Hebel (55) gesteuert wird.
  2. Abblasevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Hebel (55) um eine Achse (56) angelenkt ist, die in Ansätzen (57) des Körpers (51) gelagert ist, wobei die Achse in die Ansätze eingeklipst ist.
  3. Abblasevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Hebel (55) einen Nocken (59) trägt, der mit einer Rampenfläche (61) des Mundstücks (54) für eine Verschiebung des Mundstücks (54) in Richtung des Ventils (3) zusammenarbeiten kann.
  4. Abblasevorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Nocken (59) von der Mittelachse (XX') des Mundstücks (54) weiter entfernt ist als die Rampenfläche.
  5. Abblasevorrichtung nach Anspruch 2 und Anspruch 3, dadurch gekennzeichnet, dass der Nocken (59) auf einem Ansatz (60) ausgebildet ist, der einen zur Handhabung dienenden Teil (58) des Hebels (55) mit der Achse (56) verbindet.
  6. Abblasevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mundstück (54) an seinem zum Eingriff in den Stutzen dienenden Ende (62) einen Druckring (63) für das Ventil (3) trägt.
  7. Abblasevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Mundstück (54) mit einem Ausschnitt (64) versehen ist, der zwei Aufnahmen (65, 66) für einen elastischen Ansatz (68) des Körpers definiert, wobei der Ansatz in solcher Weise angeordnet ist, dass sein Ende (67) wahlweise in eine der Aufnahmen eingreift.
  8. Abblasevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schwenkbewegung des Hebels (55) durch das Abstützen des Hebels auf dem Körper (51) oder dem Mundstück (54) begrenzt ist.
  9. Abblasevorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass der Körper (51) einen Anschlag (69) aufweist, der mit einem entsprechenden Teil (60) des Hebels (55) zusammenarbeiten kann, wenn das Mundstück (54) ins Innere des Stutzens (A) verschoben wird.
  10. Abblasevorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Mundstück (54) einen Anschlag (70) aufweist, der mit einem entsprechenden Anschlag (71) des Hebels (55) zusammenarbeiten kann, wenn das Mundstück (54) von dem Stutzen (A) gesehen nach außen verschoben wird.
EP98420148A 1997-09-01 1998-08-28 Hebelbetätigtes Druckluft-Blasmundstück Expired - Lifetime EP0899028B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9711033A FR2767896B1 (fr) 1997-09-01 1997-09-01 Soufflette a air comprime commandee par un levier
FR9711033 1997-09-01

Publications (2)

Publication Number Publication Date
EP0899028A1 EP0899028A1 (de) 1999-03-03
EP0899028B1 true EP0899028B1 (de) 2002-10-16

Family

ID=9510778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98420148A Expired - Lifetime EP0899028B1 (de) 1997-09-01 1998-08-28 Hebelbetätigtes Druckluft-Blasmundstück

Country Status (6)

Country Link
US (1) US6032878A (de)
EP (1) EP0899028B1 (de)
AT (1) ATE226117T1 (de)
DE (1) DE69808710T2 (de)
ES (1) ES2182251T3 (de)
FR (1) FR2767896B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200239294Y1 (ko) * 1999-05-20 2001-09-25 이황우 다기능용 에어건.
US6752335B2 (en) * 2000-05-23 2004-06-22 Summit Tool Company Pivoting blow-gun

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1425900A1 (de) * 1965-05-07 1969-04-03 Luciano Bracchino Blas- oder Spritzgeraet
IT209219Z2 (it) * 1985-11-19 1988-09-20 Gervasoni Bono Corpo di pistola ad aria perfezionato con valvola alloggiata nel raccordo di collegamento con il condotto di alimentazione dell'aria compressa.
US4676269A (en) * 1986-03-07 1987-06-30 Tuthill Corporation Connector assembly

Also Published As

Publication number Publication date
EP0899028A1 (de) 1999-03-03
FR2767896A1 (fr) 1999-03-05
FR2767896B1 (fr) 1999-10-22
ATE226117T1 (de) 2002-11-15
US6032878A (en) 2000-03-07
ES2182251T3 (es) 2003-03-01
DE69808710D1 (de) 2002-11-21
DE69808710T2 (de) 2003-07-03

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