EP0899028B1 - Soufflette à air comprimé comandée par un levier - Google Patents
Soufflette à air comprimé comandée par un levier Download PDFInfo
- 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
Links
Images
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)
- Cleaning In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Reciprocating Pumps (AREA)
Description
- la figure 1 est une coupe axiale d'une soufflette conforme à l'invention montée sur un élément femelle d'un raccord rapide, la soufflette n'étant pas activée ;
- La figure 2 est une vue analogue à la figure 1 alors que la soufflette est activée ;
- la figure 3 est une vue extérieure de la soufflette seule, dans la position de la figure 2, avec arrachement partiel et
- la figure 4 est une coupe axiale selon la ligne IV-IV à la figure 3 ; on y a représenté en III-III la ligne d'arrachement de la figure 3.
Claims (10)
- Soufflette à air comprimé (B) commandée par un levier (55), caractérisée en ce qu'elle comprend un corps (51) sensiblement tubulaire apte à coopérer avec des moyens d'immobilisation (10) à l'intérieur d'un élément femelle (A) de raccord rapide pour maintenir ledit corps en position dans un alésage central (1a) dudit élément femelle et une buse (54) globalement tubulaire apte à déplacer, par coulissement à l'intérieur dudit corps, un clapet (3) dudit élément femelle, le coulissement de ladite buse dans ledit corps étant commandé par ledit levier (55).
- Soufflette selon la revendication 1, caractérisée en ce que ledit levier (55) est articulé autour d'un axe (56) supporté par des pattes (57) dudit corps (51), ledit axe étant clippé dans lesdites pattes.
- Soufflette selon la revendication 1, caractérisée en ce que ledit levier (55) porte une came (59) apte à coopérer avec une rampe (61) de ladite buse (54) pour déplacer ladite buse en direction dudit clapet (3).
- Soufflette selon la revendication 3, caractérisée en ce que ladite came (59) est plus éloignée de l'axe central (XX') de ladite buse (54) que ladite rampe.
- Soufflette selon les revendications 2 et 3, caractérisée en ce que ladite came (59) est ménagée sur une patte (60) reliant une partie (58) dudit levier (55) destinée à être manipulée audit axe (56).
- Soufflette selon l'une des revendications précédente, caractérisée en ce que ladite buse (54) porte, à son extrémité (62) destinée à pénétrer dans ledit élément femelle, un anneau (63) de poussée dudit clapet (3).
- Soufflette selon l'une des revendications précédentes, caractérisée en ce que ladite buse (54) est pourvue d'un cran (64) définissant deux logements (65, 66) de réception d'une patte élastique (68) dudit corps, ladite patte étant disposée de telle sorte que son extrémité (67) pénètre sélectivement dans l'un desdits logements.
- Soufflette selon l'une des revendications précédentes, caractérisée en ce que le mouvement de pivotement dudit levier (55) est limité par l'appui dudit levier sur ledit corps (51) ou ladite buse (54).
- Soufflette selon la revendication 8, caractérisée en ce que ledit corps (51) porte une butée (69) apte à coopérer avec une partie correspondante (60) dudit levier (55) lorsque ladite buse (54) est déplacée vers l'intérieur dudit élément femelle (A).
- Soufflette selon la revendication 8, caractérisée en ce que ladite buse (54) porte une butée (70) apte à coopérer avec une butée correspondante (71) dudit levier (55) lorsque ladite buse (54) est déplacée vers l'extérieur dudit élément femelle (A).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9711033 | 1997-09-01 | ||
FR9711033A FR2767896B1 (fr) | 1997-09-01 | 1997-09-01 | Soufflette a air comprime commandee par un levier |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0899028A1 EP0899028A1 (fr) | 1999-03-03 |
EP0899028B1 true EP0899028B1 (fr) | 2002-10-16 |
Family
ID=9510778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98420148A Expired - Lifetime EP0899028B1 (fr) | 1997-09-01 | 1998-08-28 | Soufflette à air comprimé comandée par un levier |
Country Status (6)
Country | Link |
---|---|
US (1) | US6032878A (fr) |
EP (1) | EP0899028B1 (fr) |
AT (1) | ATE226117T1 (fr) |
DE (1) | DE69808710T2 (fr) |
ES (1) | ES2182251T3 (fr) |
FR (1) | FR2767896B1 (fr) |
Families Citing this family (2)
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)
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 |
-
1997
- 1997-09-01 FR FR9711033A patent/FR2767896B1/fr not_active Expired - Fee Related
-
1998
- 1998-08-03 US US09/127,831 patent/US6032878A/en not_active Expired - Lifetime
- 1998-08-28 DE DE69808710T patent/DE69808710T2/de not_active Expired - Lifetime
- 1998-08-28 EP EP98420148A patent/EP0899028B1/fr not_active Expired - Lifetime
- 1998-08-28 ES ES98420148T patent/ES2182251T3/es not_active Expired - Lifetime
- 1998-08-28 AT AT98420148T patent/ATE226117T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE226117T1 (de) | 2002-11-15 |
FR2767896B1 (fr) | 1999-10-22 |
DE69808710T2 (de) | 2003-07-03 |
DE69808710D1 (de) | 2002-11-21 |
FR2767896A1 (fr) | 1999-03-05 |
US6032878A (en) | 2000-03-07 |
ES2182251T3 (es) | 2003-03-01 |
EP0899028A1 (fr) | 1999-03-03 |
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