EP0262200A1 - Apparatus for the maintenance of pneumatic tools - Google Patents

Apparatus for the maintenance of pneumatic tools

Info

Publication number
EP0262200A1
EP0262200A1 EP19870902358 EP87902358A EP0262200A1 EP 0262200 A1 EP0262200 A1 EP 0262200A1 EP 19870902358 EP19870902358 EP 19870902358 EP 87902358 A EP87902358 A EP 87902358A EP 0262200 A1 EP0262200 A1 EP 0262200A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
nozzle
reservoir
maintenance
treatment
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.)
Withdrawn
Application number
EP19870902358
Other languages
German (de)
French (fr)
Inventor
Georges Stutzmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0262200A1 publication Critical patent/EP0262200A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
    • F16N7/32—Mist lubrication
    • F16N7/34—Atomising devices for oil

Definitions

  • the present invention relates to an apparatus for the maintenance of pneumatic tools arranged to be supplied with compressed air by means of a supply duct connected to a reservoir and / or a compressed air generator, this apparatus comprising at least one diffuser member mounted on said supply duct for injecting, into the stream of compressed air passing through said supply duct, at least one treatment and / or maintenance product.
  • Apparatuses of this type are already known comprising a single reservoir which can contain either a cleaning product or a lubricant, and a sprayer provided for mixing one of these products with compressed air which supplies the pneumatic tools.
  • the European patent application published under No. 65 915 describes a device with two reservoirs respectively containing a product for preventing icing and a lubricating oil, two nozzles respectively connected to these reservoirs and an atomization chamber provided with passageways the compressed air supplying the pneumatic tools treated by this device.
  • the present invention proposes to make available to taken working with pneumatic tools in an often particularly aggressive environment a simple and robust device per ⁇ putting to start and maintain these pneumatic tools, to clean them or to loosen them without any disassembly of the moving parts.
  • the device is able to restore pneumatic tools such as drills, chisel hammers, concrete breakers, completely blocked by rust. and dust due to prolonged interruption of use.
  • the apparatus according to the invention is characterized in that said diffusing member comprises a single injection nozzle connected to at least one reservoir containing said treatment product and / or d maintenance, this nozzle being mounted in the side wall of a cylindrical cavity mounted on the supply duct and traversed by said stream of compressed air.
  • said cylindrical cavity comprises a zone of reduced internal diameter and said single injection nozzle is arranged so that its free anterior end opens into this zone.
  • said cylindrical cavity is formed in a machined part, the upstream end of this cavity being connected to a first end fitting intended to be connected to said reservoir and / or compressed air generator, and the end downstream of this cavity being connected to a second nozzle intended to be connected to a pneumatic tool.
  • Said area of reduced internal diameter is defined by a cylindrical ring mounted inside the cavity and comprising a bore whose cross section passes through a minimum located substantially at mid-length of the ring.
  • the single injection nozzle is preferably mounted radially on said cylindrical ring in the zone corresponding to the minimum of the cross section.
  • the free anterior end of this single injection nozzle is preferably protruding with respect to the internal wall of said cylindrical ring. In this way a Venturi tube is produced and an efficient spraying of the products brought by the nozzle into the pressurized air flow passing through the device is obtained.
  • the workpiece preferably comprises a network of channels fitted with valves, arranged to place said nozzle respectively in communication with several reservoirs each containing a different treatment and / or maintenance product.
  • Said reservoirs containing treatment and / or maintenance products are sealed and are advantageously connected to a pressure tap formed in said cylindrical cavity of the workpiece. In this way, the liquids contained in the tanks can be put and brought under pressure to the spray nozzle.
  • Said pressure tap is advantageously connected via a distributor to the upper part of each of the tanks containing a different treatment and / or maintenance product. According to a preferred embodiment, this connection is made at the level of the filling port of the tanks.
  • This pressure tap is arranged upstream of the single injection nozzle in the direction of flow of the compressed air.
  • FIG. 1 represents a schematic perspective view of the device according to the invention
  • FIG. 2 represents a partial elevation view of the machined part equipped with valves for distributing treatment and / or maintenance products
  • FIG. 3 represents an axial section view of the machined part represented by FIG. 2
  • FIG. 4 represents a side view, in elevation of the machined part represented by FIG. 2,
  • FIG. 5 represents a plan view of the distributor arranged to connect the pressure tap to the various tanks
  • Figure 6 is a schematic view illustrating the principle of operation of the apparatus according to the invention.
  • the device consists of a housing 10 inside which is mounted a reservoir 11 with three compartments, and a diffuser member 12 mounted between an upstream section 13 of the arrival of the compressed air and a section downstream 14 for the start of compressed air loaded with a treatment and / or maintenance product.
  • the reservoir 11 comprises, in the example shown, three compartments 11a, 11b and 11c each containing a treatment and / or maintenance product in liquid form, these products having particular characteristics making it possible to have an action specific on pneumatic tools.
  • Each of these compartments is equipped with a filling orifice 15a, 15b and 15c respectively which can be closed hermetically by means of a cap 16a, 16b, 1 ⁇ c.
  • the three compartments of the reservoir 11 have sufficiently thick walls to withstand internal pressures corresponding to the pressure of the compressed air flowing through the diffuser member 12.
  • a pressure tap 17 formed on the 'diffuser member 12 is connected through a conduit 18, a distributor 19 and connection ducts 20a, 20b and 20c respectively to each of the compartments 11a, 11b and 11c of the reservoir 11.
  • the diffuser member is also connected to these three compartments by means of conduits 21a, 21b and 21c each equipped with a valve 22a, 22b and 22c respectively.
  • the upstream nozzle 13 for supplying compressed air is provided with a valve 23 which makes it possible, if necessary, to stop the supply of compressed air to the appliance.
  • the two upstream 13 and downstream 14 ends are respectively equipped with their free end of a quick coupling member 24, 25, for example of the bayonet type, making it possible to connect the device on the one hand to a tank or a pressurized air generator (not shown) arranged in upstream of the device and on the other hand to a pneumatic tool to unclip, rust or maintain, connected downstream of the device.
  • a quick coupling member 24, 25, for example of the bayonet type making it possible to connect the device on the one hand to a tank or a pressurized air generator (not shown) arranged in upstream of the device and on the other hand to a pneumatic tool to unclip, rust or maintain, connected downstream of the device.
  • conduits intended to withdraw the treatment and / or maintenance products from the reservoir 11 to direct them towards the diffusing member 12 are connected at the bottom of the corresponding compartments ia, 1 lb and 11c.
  • the conduits 20a, 20b, 20c intended to ensure the pressurization of the liquids respectively contained in each of the compartments of the reservoir 11 are respecti ⁇ vely connected to the upper ends of these compartments preferably at the filling orifices.
  • Figs. 2, 3 and 4 illustrate in more detail the diffuser member 12 composed of a machined part comprising a lower part 30 having the shape of a rectangular parallelepiped surmounted by a upper part 31 of the same shape but of substantially reduced width with respect to that of the lower part 30.
  • the lower part 30 is traversed by a cylindrical cavity 32 provided with an upstream thread 33 intended to allow the connection of the upstream section 13 for supplying the pressurized air, and a downstream thread 34, intended for the connection of the downstream section 14 for evacuating the pressurized air charged with treatment and / or maintenance liquid.
  • Inside the cylindrical cavity 32 is mounted a cylindrical ring 35 defining an inner channel 36 coaxial with the cylindrical cavity 32 and the cross section of which passes through a minimum.
  • the inner wall of the ring 35 defining the channel 36 includes an upstream frustoconical area 37, a central cylindrical area 38 and a second downstream frustoconical area 39.
  • a cylindrical nozzle 40 is mounted inside the workpiece 30 , crosses radially the wall of the ring 35 and opens out inside the channel 36.
  • the free end 41 of the nozzle 40 is preferably protruding with respect to the cylindrical surface 38 formed between the two frustoconical surfaces 37 and 39 of the ring 35.
  • the three valves 22a, 22b and 22c are mounted parallel to each other on the upper part 31 of the machined part 12.
  • valves comprise an internal axial duct which extends inside the upper part 31 of the machined part 12 in the form of three through bores respec ⁇ tively 42a, 42b and 42c. These bores are closed on the side of the part 31 opposite the corresponding valve by a plug 43.
  • the central bore 42b communicates with a lower duct 44b in which is housed the nozzle 40.
  • the duct 44b is connected to the two through bores 42a and 42c respectively by the intermediary of two inclined internal channels 44a and 44c.
  • the pressurized air intake 17 provided in the machined part 12 comprises a channel 45 which opens out inside the cylindrical cavity 32 and is connected by means of a connection block 46 to the conduit 18, the other of which end is connected to a distributor 19 shown in FIG. 5.
  • This distributor 19 consists of a central piece of square section 47 provided on each of its faces with a connection end piece 48, 49, 50 and 51 respectively.
  • the connection end piece 48 allows the connection of the conduit 18.
  • the connection end piece 49 allows for example the connection of the conduit 20a.
  • the connection end piece 50 is provided for connecting the duct 20b and the connection end piece 51 ensures the connection of the duct 20c.
  • the upstream nozzle is connected to a source or generator of pressurized air.
  • the valve 23 is initially closed.
  • the downstream nozzle 14 is connected to a pneumatic tool to be treated or maintained.
  • the operator then chooses the treatment or maintenance product, in the form of a liquid contained in one of the compartments of the reservoir 11. It more or less opens one of the taps 22'a, 22'b or 22'c as well as the valve 23.
  • the pressurized air then flows through the axial bore 32. Thanks to the pressure tap 17, the selected compartment corresponding to the valve 22'a, 22'b or 22'c which has been opened is pressurized and the corresponding treatment or maintenance liquid is sprayed into a stream of compressed air passing through the channel 36 via the nozzle 40.
  • the compressed air discharged through the downstream nozzle 14 is responsible for this treatment and / or maintenance product and allows, depending on the nature of the product used, to rust, loosen, deglaze or lubricate the pneumatic tool connected to this nozzle.
  • the three tanks the number of which could be increased to four or more, preferably each contain a different product which can be injected sequentially into the air flow under pressure. In this way, it will be possible to ensure a complete program for the treatment or maintenance of pneumatic tools by selectively opening the valves of the valves connected to the various compartments of the tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

L'appareil se compose d'un boîtier (10) contenant au moins un réservoir (11), de préférence compartimenté, contenant au moins un produit de traitement et/ou d'entretien des outils pneumatiques. Un organe distributeur (11) est monté entre un embout amont (13) destiné à être connecté à une source ou un générateur d'air comprimé et embout de sortie (14) destiné à être raccordé à un outil pneumatique. Cet organe contient une buse d'injection unique raccordée au moyen de différents conduits et de vannes au réservoir (11), cette buse ayant pour but d'injecter dans le courant d'air sous pression traversant les embouts (13 et 14) ledit produit de traitement et/ou d'entretien contenu dans le réservoir (11).The apparatus consists of a housing (10) containing at least one reservoir (11), preferably compartmentalized, containing at least one treatment and / or maintenance product for pneumatic tools. A distributor member (11) is mounted between an upstream nozzle (13) intended to be connected to a source or a generator of compressed air and outlet nozzle (14) intended to be connected to a pneumatic tool. This member contains a single injection nozzle connected by means of various conduits and valves to the reservoir (11), the purpose of this nozzle being to inject said product into the stream of pressurized air passing through the nozzles (13 and 14) treatment and / or maintenance contained in the tank (11).

Description

APPAREIL POUR L'ENTRETIEN D'OUTILS PNEUMATIQUES APPARATUS FOR MAINTAINING PNEUMATIC TOOLS
La présente invention concerne un appareil pour l'entretien d'outils pneumatiques agencés pour être alimentés en air comprimé au moyen d'un conduit d'alimentation raccordé à un réservoir et/ou un générateur d'air comprimé, cet appareil comprenant au moins un organe diffuseur monté sur ledit conduit d'alimentation pour injecter, dans le courant d'air comprimé traversant ledit conduit d'alimentation, au moins un produit de traitement et/ou d'entretien.The present invention relates to an apparatus for the maintenance of pneumatic tools arranged to be supplied with compressed air by means of a supply duct connected to a reservoir and / or a compressed air generator, this apparatus comprising at least one diffuser member mounted on said supply duct for injecting, into the stream of compressed air passing through said supply duct, at least one treatment and / or maintenance product.
On connaît déjà des appareils de ce type comportant un réservoir unique pouvant contenir soit un produit de nettoyage, soit un lubri¬ fiant, et un pulvérisateur prévu pour mélanger l'un de ces produits à l'air comprimé qui alimente les outils pneumatiques.Apparatuses of this type are already known comprising a single reservoir which can contain either a cleaning product or a lubricant, and a sprayer provided for mixing one of these products with compressed air which supplies the pneumatic tools.
Il n'existe toutefois aucun appareil qui permet d'injecter successive¬ ment dans le courant d'air comprimé alimentant les outils pneumati¬ ques, des substances si diverses que les produits de dégrippage, de dérouillage, de nettoyage, de déglaçage et de lubrification, et ceci d'une manière extrêmement simple et aisément contrôlable.However, there is no device which makes it possible to successively inject into the stream of compressed air supplying the pneumatic tools, substances so diverse as the products for de-binding, rust removal, cleaning, de-icing and lubrication. , and this in an extremely simple and easily controllable manner.
La demande de brevet européen publiée sous le No 65 915 décrit un dispositif à deux réservoirs contenant respectivement un produit pour éviter le givrage et une huile de lubrification, deux buses respectivement connectées Δ ces réservoirs et une ch-arabre d'atomisation pourvue de pasages de l'air comprimé alimentant les outils pneumatiques traités par ce dispositif.The European patent application published under No. 65 915 describes a device with two reservoirs respectively containing a product for preventing icing and a lubricating oil, two nozzles respectively connected to these reservoirs and an atomization chamber provided with passageways the compressed air supplying the pneumatic tools treated by this device.
L'existence d'une chambre d'atomisation montée entre les buses d'injection et le conduit d'alimentation en air comprimé ne permet pas une injection directe et contrôlée des liquides de traitement dans le courant d'air. Le passage étroit mettant la chambre d'atomisation en communication avec le conduit de passage de l'air comprimé ne permet pas une injection sélective des liquides et, par conséquent, un traitement des outils pneumatiques.The existence of an atomization chamber mounted between the injection nozzles and the compressed air supply pipe does not allow direct and controlled injection of the treatment liquids into the air stream. The narrow passage putting the atomization chamber in communication with the passage for compressed air does not allow selective injection of liquids and, therefore, treatment of pneumatic tools.
La présente invention se propose de mettre à la disposition des entre- prises travaillant avec des outils pneumatiques dans un environnement souvent particulièrement agressif un appareil simple et robuste per¬ mettant de mettre en route et d'entretenir ces outils pneumatiques, de les nettoyer ou des les dégripper sans aucun démontage des pièces mobiles.The present invention proposes to make available to taken working with pneumatic tools in an often particularly aggressive environment a simple and robust device per¬ putting to start and maintain these pneumatic tools, to clean them or to loosen them without any disassembly of the moving parts.
En fonction des produits de traitement et d'entretien utilisés, l'ap¬ pareil est en mesure de remettre en état de marche des outils pneuma¬ tiques tels que des perforatrices, des marteaux burineurs, des brise- béton, complètement bloqués par la rouille et la poussière suite à une interruption prolongée de le_ur utilisation.Depending on the treatment and maintenance products used, the device is able to restore pneumatic tools such as drills, chisel hammers, concrete breakers, completely blocked by rust. and dust due to prolonged interruption of use.
Dans ce but, l'appareil selon l'invention, tel que mentionné en préam¬ bule, est caractérisé en ce que ledit organe diffuseur comporte une buse d'injection unique raccordée à au moins un réservoir contenant ledit produit de traitement et/ou d'entretien, cette buse étant montée dans la paroi latérale d'une cavité cylindrique montée sur le conduit d'alimentation et traversée par ledit courant d'air comprimé.For this purpose, the apparatus according to the invention, as mentioned in the preamble, is characterized in that said diffusing member comprises a single injection nozzle connected to at least one reservoir containing said treatment product and / or d maintenance, this nozzle being mounted in the side wall of a cylindrical cavity mounted on the supply duct and traversed by said stream of compressed air.
Selon une forme de réalisation préférée, ladite cavité cylindrique comporte une zone de diamètre intérieur réduit et ladite buse d'injec¬ tion unique est agencée pour que son extrémité antérieure libre débou¬ che dans cette zone.According to a preferred embodiment, said cylindrical cavity comprises a zone of reduced internal diameter and said single injection nozzle is arranged so that its free anterior end opens into this zone.
Selon une forme de réalisation particulièrement avantageuse, ladite cavité cylindrique est ménagée dans une pièce usinée, l'extrémité amont de cette cavité étant connectée à un premier embout prévu pour être raccordé audit réservoir et/ou générateur d'air comprimé, et l'extrémité aval de cette cavité étant connectée à un second embout prévu pour être raccordé à un outil pneumatique. Ladite zone de dia¬ mètre intérieur réduit est définie par une bague cylindrique montée à l'intérieur de la cavité et comportant un alésage dont la section transversale passe par un minimum localisé sensiblement à mi-longeur de la bague.According to a particularly advantageous embodiment, said cylindrical cavity is formed in a machined part, the upstream end of this cavity being connected to a first end fitting intended to be connected to said reservoir and / or compressed air generator, and the end downstream of this cavity being connected to a second nozzle intended to be connected to a pneumatic tool. Said area of reduced internal diameter is defined by a cylindrical ring mounted inside the cavity and comprising a bore whose cross section passes through a minimum located substantially at mid-length of the ring.
La buse d'injection unique est de préférence montée radialement sur ladite bague cylindrique dans la zone correspondant au minimum de la section transversale. L'extrémité antérieure libre de cette buse d'in¬ jection unique est de préférence protubérante par rapport à la paroi interne de ladite bague cylindrique. De cette manière on réalise un tube de Venturi et l'on obtient une pulvérisation efficace des pro¬ duits amenés par la buse dans le flux d'air sous pression traversant l'appareil.The single injection nozzle is preferably mounted radially on said cylindrical ring in the zone corresponding to the minimum of the cross section. The free anterior end of this single injection nozzle is preferably protruding with respect to the internal wall of said cylindrical ring. In this way a Venturi tube is produced and an efficient spraying of the products brought by the nozzle into the pressurized air flow passing through the device is obtained.
La pièce usinée comporte de préférence un réseau de canaux équipés de vannes, agencés pour mettre ladite buse respectivement en communica¬ tion avec plusieurs réservoirs contenant chacun un produit de traite¬ ment et/ou d'entretien différent.The workpiece preferably comprises a network of channels fitted with valves, arranged to place said nozzle respectively in communication with several reservoirs each containing a different treatment and / or maintenance product.
Lesdits réservoirs contenant des produits de traitement et/ou d'entre¬ tien sont étanches et sont avantageusement connectés à une prise de pression ménagée dans ladite cavité cylindrique de la pièce usinée. De cette manière, les liquides contenus dans les réservoirs peuvent être mis et amenés sous pression vers la buse de pulvérisation.Said reservoirs containing treatment and / or maintenance products are sealed and are advantageously connected to a pressure tap formed in said cylindrical cavity of the workpiece. In this way, the liquids contained in the tanks can be put and brought under pressure to the spray nozzle.
Ladite prise de pression est avantageusement connectée via un distri¬ buteur à la partie supérieure de chacun des réservoirs contenant un produit de traitement et/ou d'entretien différent. Selon une forme de réalisation préférée, ce raccordement s'effectue au niveau de l'ori¬ fice de remplissage des réservoirs.Said pressure tap is advantageously connected via a distributor to the upper part of each of the tanks containing a different treatment and / or maintenance product. According to a preferred embodiment, this connection is made at the level of the filling port of the tanks.
Cette prise de pression est disposée en amont de la buse d'injection unique dans le sens de la circulation de l'air comprimé.This pressure tap is arranged upstream of the single injection nozzle in the direction of flow of the compressed air.
La présente invention sera mieux comprise en référence à la description d'un exemple de réalisation et du dessin annexé dans lequel :The present invention will be better understood with reference to the description of an exemplary embodiment and the attached drawing in which:
La figure 1 représente une vue schématique en perspective de l'appa¬ reil selon l'invention,FIG. 1 represents a schematic perspective view of the device according to the invention,
La figure 2 représente une vue partielle en élévation de la pièce usinée équipée de vannes de distribution des produits de traitement et/ou d'entretien, La figure 3 représente une vue en coupe axiale de la pièce usinée représentée par la fig. 2,FIG. 2 represents a partial elevation view of the machined part equipped with valves for distributing treatment and / or maintenance products, FIG. 3 represents an axial section view of the machined part represented by FIG. 2,
La figure 4 représente une vue de côté, en élévation de la pièce usinée représentée par la fig. 2,FIG. 4 represents a side view, in elevation of the machined part represented by FIG. 2,
La figure 5 représente une vue en plan du distributeur agencé pour relier la prise de pression aux différents réservoirs, etFIG. 5 represents a plan view of the distributor arranged to connect the pressure tap to the various tanks, and
La figure 6 est une vue schématique illustrant le principe de fonc¬ tionnement de l'appareil selon l'invention.Figure 6 is a schematic view illustrating the principle of operation of the apparatus according to the invention.
En référence aux figures et en particulier à la fig. 1, l'appareil se compose d'un boîtier 10 à l'intérieur duquel est monté un réservoir 11 à trois compartiments, et un organe diffuseur 12 monté entre un tron¬ çon amont 13 d'arrivée de l'air comprimé et un tronçon aval 14 de départ de l'air comprimé chargé d'un produit de traitement et/ou d'entretien. Comme le montre plus particulièrement la fig. 6, le réservoir 11 comporte, dans l'exemple représenté, trois compartiments 11a, 11b et 11c contenant chacun un produit de traitement et/ou d'en¬ tretien sous forme liquide, ces produits ayant des caractéristiques particulières permettant d'avoir une action spécifique sur les outils pneumatiques. Chacun de ces compartiments est équipé d'un orifice de remplissage respectivement 15a, 15b et 15c qui peut être obturé hermé¬ tiquement au moyen d'un capuchon 16a, 16b, 1δc. Les trois comparti¬ ments du réservoir 11 ont des parois suffisamment épaisses pour résis¬ ter à des pressions intérieures correspondant à la pression de l'air comprimé circulant à travers l'organe diffuseur 12. En effet, une prise de pression 17 ménagée sur l'organe diffuseur 12 est raccordée à travers un conduit 18, un distributeur 19 et des conduits de raccorde¬ ment 20a, 20b et 20c respectivement à chacun des compartiments 11a, 11b et 11c du réservoir 11. L'organe diffuseur est par ailleurs relié à ces trois compartiments au moyen des conduits 21a, 21b et 21c équi¬ pés chacun d'une vanne respectivement 22a, 22b et 22c. L'embout amont 13 d'amenée de l'air comprimé est pourvu d'une vanne 23 qui permet, le cas échéant, d'arrêter l'alimentation de l'appareil en air comprimé. Les deux embouts amont 13 et aval 14 sont respectivement équipés à leur extrémité libre d'un organe de couplage rapide 24, 25, par exem¬ ple du type à baîonette, permettant de raccorder l'appareil d'une part à un réservoir ou un générateur d'air sous pression (non représenté) disposé en amont de l'appareil et d'autre part à un outil pneumatique à dégripper, dérouiller ou entretenir, connecté en aval de l'appareil.With reference to the figures and in particular to FIG. 1, the device consists of a housing 10 inside which is mounted a reservoir 11 with three compartments, and a diffuser member 12 mounted between an upstream section 13 of the arrival of the compressed air and a section downstream 14 for the start of compressed air loaded with a treatment and / or maintenance product. As shown more particularly in FIG. 6, the reservoir 11 comprises, in the example shown, three compartments 11a, 11b and 11c each containing a treatment and / or maintenance product in liquid form, these products having particular characteristics making it possible to have an action specific on pneumatic tools. Each of these compartments is equipped with a filling orifice 15a, 15b and 15c respectively which can be closed hermetically by means of a cap 16a, 16b, 1δc. The three compartments of the reservoir 11 have sufficiently thick walls to withstand internal pressures corresponding to the pressure of the compressed air flowing through the diffuser member 12. In fact, a pressure tap 17 formed on the 'diffuser member 12 is connected through a conduit 18, a distributor 19 and connection ducts 20a, 20b and 20c respectively to each of the compartments 11a, 11b and 11c of the reservoir 11. The diffuser member is also connected to these three compartments by means of conduits 21a, 21b and 21c each equipped with a valve 22a, 22b and 22c respectively. The upstream nozzle 13 for supplying compressed air is provided with a valve 23 which makes it possible, if necessary, to stop the supply of compressed air to the appliance. The two upstream 13 and downstream 14 ends are respectively equipped with their free end of a quick coupling member 24, 25, for example of the bayonet type, making it possible to connect the device on the one hand to a tank or a pressurized air generator (not shown) arranged in upstream of the device and on the other hand to a pneumatic tool to unclip, rust or maintain, connected downstream of the device.
D'une manière connue en soi, les conduits destinés à prélever les produits de traitement et/ou d'entretien dans le réservoir 11 pour les diriger vers l'organe diffuseur 12 sont raccordés en bas des comparti¬ ments correspondants lia, 1 lb et 11c. Les conduits 20a, 20b, 20c destinés à assurer la mise sous pression des liquides respectivement contenus dans chacun des compartiments du réservoir 11 sont respecti¬ vement raccordés aux extrémités supérieures de ces compartiments de préférence au niveau des orifices de remplissage.In a manner known per se, the conduits intended to withdraw the treatment and / or maintenance products from the reservoir 11 to direct them towards the diffusing member 12 are connected at the bottom of the corresponding compartments ia, 1 lb and 11c. The conduits 20a, 20b, 20c intended to ensure the pressurization of the liquids respectively contained in each of the compartments of the reservoir 11 are respecti¬ vely connected to the upper ends of these compartments preferably at the filling orifices.
Les fig. 2, 3 et 4 illustrent plus en détail l'organe diffuseur 12 composé d'une pièce usinée comprenant une partie inférieure 30 ayant la forme d'un parallélépipède rectangle surmontée d'une partie supé¬ rieure 31 de même forme mais de largeur sensiblement réduite par rapport à celle de la partie inférieure 30. Comme le montre la fig. 3, la partie inférieure 30 est traversée par une cavité cylindrique 32 pourvue d'un filetage amont 33 destiné à permettre le raccordement du tronçon amont 13 d'amenée de l'air sous pression, et d'un filetage aval 34, destiné au raccordement du tronçon aval 14 d'évacuation de l'air sous pression chargé de liquide de traitement et/ou d'entretien. A l'intérieur de la cavité cylindrique 32 est montée une bague cylin¬ drique 35 définissant un canal intérieur 36 coaxial à la cavité cylin¬ drique 32 et dont la section transversale passe par un minimum. A cet effet, la paroi intérieure de la bague 35 définissant le canal 36 comporte une zone tronconique amont 37, une zone cylindrique centrale 38 et une seconde zone tronconique aval 39. Une buse cylindrique 40 est montée à l'intérieur de la pièce usinée 30, traverse radialement la paroi de la bague 35 et débouche à l'intérieur du canal 36. L'ex¬ trémité libre 41 dé la buse 40 est de préférence protubérante par rapport à la surface cylindrique 38 ménagée entre les deux surfaces tronconiques 37 et 39 de la bague 35. Les trois vannes 22a, 22b et 22c sont montées parallèlement entre elles sur la partie supérieure 31 de la pièce usinée 12. Elles compor¬ tent chacune un robinet 22'a, 22'b, 22'c et un embout de raccordement 22* 'a, 22' 'b et 22' 'c conçu pour assurer la connexion des conduits respectivement 21a, 21b et 21c. Ces vannes comportent un conduit axial intérieur qui se prolonge à l'intérieur de la partie supérieure 31 de la pièce usinée 12 sous la forme de trois alésages traversants respec¬ tivement 42a, 42b et 42c. Ces alésages sont obturés sur le côté de la partie 31 opposée à la vanne correspondante par un bouchon d'obtura¬ tion 43. L'alésage central 42b communique avec un conduit inférieur 44b dans lequel est logée la buse 40. Le conduit 44b est relié aux deux alésages traversants 42a et 42c respectivement par l'intermé¬ diaire de deux canaux intérieurs inclinés 44a et 44c.Figs. 2, 3 and 4 illustrate in more detail the diffuser member 12 composed of a machined part comprising a lower part 30 having the shape of a rectangular parallelepiped surmounted by a upper part 31 of the same shape but of substantially reduced width with respect to that of the lower part 30. As shown in fig. 3, the lower part 30 is traversed by a cylindrical cavity 32 provided with an upstream thread 33 intended to allow the connection of the upstream section 13 for supplying the pressurized air, and a downstream thread 34, intended for the connection of the downstream section 14 for evacuating the pressurized air charged with treatment and / or maintenance liquid. Inside the cylindrical cavity 32 is mounted a cylindrical ring 35 defining an inner channel 36 coaxial with the cylindrical cavity 32 and the cross section of which passes through a minimum. To this end, the inner wall of the ring 35 defining the channel 36 includes an upstream frustoconical area 37, a central cylindrical area 38 and a second downstream frustoconical area 39. A cylindrical nozzle 40 is mounted inside the workpiece 30 , crosses radially the wall of the ring 35 and opens out inside the channel 36. The free end 41 of the nozzle 40 is preferably protruding with respect to the cylindrical surface 38 formed between the two frustoconical surfaces 37 and 39 of the ring 35. The three valves 22a, 22b and 22c are mounted parallel to each other on the upper part 31 of the machined part 12. They each comprise a tap 22'a, 22'b, 22'c and a connecting piece 22 * ' a, 22 '' b and 22 '' c designed to connect the conduits 21a, 21b and 21c respectively. These valves comprise an internal axial duct which extends inside the upper part 31 of the machined part 12 in the form of three through bores respec¬ tively 42a, 42b and 42c. These bores are closed on the side of the part 31 opposite the corresponding valve by a plug 43. The central bore 42b communicates with a lower duct 44b in which is housed the nozzle 40. The duct 44b is connected to the two through bores 42a and 42c respectively by the intermediary of two inclined internal channels 44a and 44c.
Comme le montre la fig. 4 la prise d'air sous pression 17 ménagée dans la pièce usinée 12 comprend un canal 45 qui débouche à l'intérieur de la cavité cylindrique 32 et, est raccordé au moyen d'un bloc de raccordement 46 au conduit 18 dont l'autre extrémité est connectée à un distributeur 19 représenté par la fig. 5. Ce distributeur 19 se compose d'une pièce centrale de section carrée 47 pourvue sur chacune de ses faces d'un embout de raccordement respectivement 48, 49, 50 et 51. L'embout de raccordement 48 permet le raccordement du conduit 18. L'embout de raccordement 49 permet par exemple le raccordement du conduit 20a. L'embout de raccordement 50 est prévu pour raccorder le conduit 20b et l'embout de raccordement 51 assure le raccordement du conduit 20c.As shown in fig. 4 the pressurized air intake 17 provided in the machined part 12 comprises a channel 45 which opens out inside the cylindrical cavity 32 and is connected by means of a connection block 46 to the conduit 18, the other of which end is connected to a distributor 19 shown in FIG. 5. This distributor 19 consists of a central piece of square section 47 provided on each of its faces with a connection end piece 48, 49, 50 and 51 respectively. The connection end piece 48 allows the connection of the conduit 18. The connection end piece 49 allows for example the connection of the conduit 20a. The connection end piece 50 is provided for connecting the duct 20b and the connection end piece 51 ensures the connection of the duct 20c.
Le fonctionnement de l'appareil est le suivant. Comme mentionné précé¬ demment, l'embout amont est raccordé à une source ou un générateur d'air sous pression. La vanne 23 est initialement fermée. L'embout aval 14 est relié à un outil pneumatique à traiter ou à entretenir. L'opérateur choisit alors le produit de traitement ou d'entretien, se présentant sous la forme d'un liquide contenu dans l'un des comparti¬ ments du réservoir 11. Il ouvre plus ou moins l'un des robinets 22'a, 22'b ou 22'c ainsi que la vanne 23. L'air sous pression circule alors à travers l'alésage axial 32. Grâce à la prise de pression 17, le compartiment sélectionné correspondant au robinet 22'a, 22'b ou 22'c qui a été ouvert est mis sous pression et le liquide de traitement ou d'entretien correspondant est pulvérisé dans flux d'air comprimé tra¬ versant le canal 36 par la buse 40. L'air comprimé évacué à travers l'embout aval 14 est chargé de ce produit de traitement et/ou d'entre¬ tien et permet, selon la nature du produit utilisé, de dérouiller, dégripper, déglacer ou lubrifier l'outil pneumatique connecté à cet embout. Les trois réservoirs, dont le nombre pourrait être porté à quatre ou plus, contiennent de préférence chacun un produit différent qui peut être injecté séquentiellement dans le flux d'air sous pres¬ sion. De cette manière, il sera possible d'assurer un programme com¬ plet de traitement ou d'entretien des outils pneumatiques en ouvrant sélectivement les robinets des vannes connectées aux différents com¬ partiments du réservoir.The operation of the device is as follows. As mentioned previously, the upstream nozzle is connected to a source or generator of pressurized air. The valve 23 is initially closed. The downstream nozzle 14 is connected to a pneumatic tool to be treated or maintained. The operator then chooses the treatment or maintenance product, in the form of a liquid contained in one of the compartments of the reservoir 11. It more or less opens one of the taps 22'a, 22'b or 22'c as well as the valve 23. The pressurized air then flows through the axial bore 32. Thanks to the pressure tap 17, the selected compartment corresponding to the valve 22'a, 22'b or 22'c which has been opened is pressurized and the corresponding treatment or maintenance liquid is sprayed into a stream of compressed air passing through the channel 36 via the nozzle 40. The compressed air discharged through the downstream nozzle 14 is responsible for this treatment and / or maintenance product and allows, depending on the nature of the product used, to rust, loosen, deglaze or lubricate the pneumatic tool connected to this nozzle. The three tanks, the number of which could be increased to four or more, preferably each contain a different product which can be injected sequentially into the air flow under pressure. In this way, it will be possible to ensure a complete program for the treatment or maintenance of pneumatic tools by selectively opening the valves of the valves connected to the various compartments of the tank.
Il est bien entendu que l'invention n'est pas limitée aux formes de réalisation précises décrites à titre d'exemples en référence aux figures. Le nombre des compartiments d'un même réservoir pourrait être modifié. De même la forme, les dimensions et le nombre de réservoirs pourraient être variés. En outre la forme des différents composants ainsi que leur nombre pourraient être modifiés en fonction des besoins spécifiques d'un utilisateur prévoyant un traitement particulier de certains outils pneumatiques. Toutefois, ces modifications sont évi¬ dentes pour l'homme de l'art et ne sortent pas du cadre de la présente invention. It is understood that the invention is not limited to the specific embodiments described by way of examples with reference to the figures. The number of compartments in the same tank could be changed. Likewise, the shape, dimensions and number of tanks could be varied. In addition, the shape of the various components as well as their number could be modified according to the specific needs of a user planning a particular treatment of certain pneumatic tools. However, these modifications are obvious to those skilled in the art and do not depart from the scope of the present invention.

Claims

Revendications claims
1. Appareil pour l'entretien d'outils pneumatiques agencés pour être alimentés en air comprimé au moyen d'un conduit d'alimentation raccor¬ dé à un réservoir et/ou un générateur d'air comprimé, cet appareil comprenant au moins un organe diffuseur monté sur ledit conduit d'ali¬ mentation pour injecter dans le courant d'air comprimé traversant ledit conduit d'alimentation au moins un produit de traitement et/ou d'entretien, caractérisé en ce que ledit organe diffuseur (12) compor¬ te une buse d'injection unique (40) raccordée à au moins un réservoir (11) contenant ledit produit de traitement et/ou d'entretien, cette buse étant montée dans la paroi latérale d'une cavité cylindrique (32) montée sur le circuit d'alimentation et traversée par ledit courant d'air comprimé.1. Apparatus for the maintenance of pneumatic tools arranged to be supplied with compressed air by means of a supply duct connected to a reservoir and / or a compressed air generator, this apparatus comprising at least one member diffuser mounted on said supply conduit for injecting into the stream of compressed air passing through said supply conduit at least one treatment and / or maintenance product, characterized in that said diffuser member (12) comprises te a single injection nozzle (40) connected to at least one reservoir (11) containing said treatment and / or maintenance product, this nozzle being mounted in the side wall of a cylindrical cavity (32) mounted on the supply circuit and flow through said compressed air stream.
2. Appareil selon la revendication 1, caractérisé en ce que ladite cavité cylindrique (12) comporte une zone de diamètre intérieur réduit (38) et en ce que ladite buse d'injection unique (40) est agencée pour que son extrémité intérieure libre (41) débouche dans cette zone.2. Apparatus according to claim 1, characterized in that said cylindrical cavity (12) comprises a zone of reduced internal diameter (38) and in that said single injection nozzle (40) is arranged so that its free internal end ( 41) leads into this area.
3. Appareil selon la revendication 2, caractérisé en ce que ladite cavité cylindrique (32) est ménagée dans une pièce usinée (30, 31), en ce que l'extrémité amont de cette cavité est connectée à un premier embout (13) prévu pour être raccordé audit réservoir et/ou générateur d'air comprimé, en ce -que l'extrémité aval (34) de cette cavité est connectée à un second embout, prévu pour être raccordé à un outil pneumatique, et en ce que ladite zone de diamètre intérieur réduit (38) est défini par une bague cylindrique (35) montée à l'intérieur de la cavité et comportant un alésage dont la section transversale passe par un minimum, localisé sensiblement à mi-longueur de cette bague.3. Apparatus according to claim 2, characterized in that said cylindrical cavity (32) is formed in a machined part (30, 31), in that the upstream end of this cavity is connected to a first end piece (13) provided to be connected to said reservoir and / or compressed air generator, in that the downstream end (34) of this cavity is connected to a second nozzle, intended to be connected to a pneumatic tool, and in that said zone of reduced internal diameter (38) is defined by a cylindrical ring (35) mounted inside the cavity and comprising a bore whose cross section passes through a minimum, located substantially mid-length of this ring.
4. Appareil selon la revendication 3, caractérisé en ce que ladite buse d'injection unique (40) est montée radialement sur ladite bague cylindrique (35), dans la zone correspondant au minimum de la section transversale.4. Apparatus according to claim 3, characterized in that said single injection nozzle (40) is mounted radially on said cylindrical ring (35), in the zone corresponding to the minimum of the cross section.
5. Appareil selon la revendication 4, caractérisé en ce que l'extrérai- té antérieure libre (41) de la buse d'injection unique (40) est protu¬ bérante par rapport à la paroi intérieure de ladite bague cylindrique (35).5. Apparatus according to claim 4, characterized in that the extraction free anterior tee (41) of the single injection nozzle (40) is protu¬ berant with respect to the inner wall of said cylindrical ring (35).
6. Appareil selon la revendication 3, caractérisé en ce que la pièce usinée (30, 31) comporte un réseau de canaux (44a, 44b, 44c) équipés de vannes (22a, 22b et 22c) agencées pour mettre ladite buse (35) respectivement en communication avec plusieurs compartiments (11a, 11b, 11c) du réservoir (11) ces compartiments contenant chacun un produit de traitement et/ou d'entretien différent.6. Apparatus according to claim 3, characterized in that the machined part (30, 31) comprises a network of channels (44a, 44b, 44c) equipped with valves (22a, 22b and 22c) arranged to put said nozzle (35) respectively in communication with several compartments (11a, 11b, 11c) of the reservoir (11) these compartments each containing a different treatment and / or maintenance product.
7. Appareil selon la revendication 6, caractérisé en ce que lesdits compartiments contenant des produits de traitement et/ou d'entretien sont étanches et connectés à une prise de pression (17) ménagée dans la cavité cylindrique (32) de la pièce usinée (30, 31).7. Apparatus according to claim 6, characterized in that said compartments containing treatment and / or maintenance products are sealed and connected to a pressure tap (17) formed in the cylindrical cavity (32) of the workpiece ( 30, 31).
8. Appareil selon la revendication 7, caractérisé en ce que ladite prise de pression (17) est connectée via un distributeur (19) à la partie supérieure de chacun des compartiments (11a, 11b, 11c) du réservoir (11) contenant chacun un produit de traitement et/ou d'en¬ tretien différent.8. Apparatus according to claim 7, characterized in that said pressure tap (17) is connected via a distributor (19) to the upper part of each of the compartments (11a, 11b, 11c) of the reservoir (11) each containing a different treatment and / or maintenance product.
9. Appareil selon la revendication 6, caractérisé en ce que ladite prise de pression (17) est disposée en amont de la buse d'injection unique (40) dans le sens de la circulation de l'air comprimé. 9. Apparatus according to claim 6, characterized in that said pressure tap (17) is disposed upstream of the single injection nozzle (40) in the direction of circulation of the compressed air.
EP19870902358 1986-04-10 1987-04-09 Apparatus for the maintenance of pneumatic tools Withdrawn EP0262200A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8605254A FR2597008B1 (en) 1986-04-10 1986-04-10 APPARATUS FOR MAINTAINING PNEUMATIC TOOLS
FR8605254 1986-04-10

Publications (1)

Publication Number Publication Date
EP0262200A1 true EP0262200A1 (en) 1988-04-06

Family

ID=9334179

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Application Number Title Priority Date Filing Date
EP19870902358 Withdrawn EP0262200A1 (en) 1986-04-10 1987-04-09 Apparatus for the maintenance of pneumatic tools

Country Status (3)

Country Link
EP (1) EP0262200A1 (en)
FR (1) FR2597008B1 (en)
WO (1) WO1987006324A1 (en)

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Publication number Priority date Publication date Assignee Title
CA2010656C (en) * 1989-05-01 1994-04-19 Roger Cann Method and apparatus for flushing residual paint from the internal flow passages in a paint distribution system
US8364231B2 (en) 2006-10-04 2013-01-29 Dexcom, Inc. Analyte sensor
US7654956B2 (en) 2004-07-13 2010-02-02 Dexcom, Inc. Transcutaneous analyte sensor

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Publication number Priority date Publication date Assignee Title
US2887181A (en) * 1956-09-18 1959-05-19 Watts Regulator Co Air line lubricator
FR2505715A1 (en) * 1981-05-15 1982-11-19 Simo DEVICE AND PRODUCT FOR PREVENTING THE ENHANCEMENT OF PNEUMATIC TOOLS, IN PARTICULAR THOSE WITH PERCUSSION
US4397422A (en) * 1981-06-04 1983-08-09 Gwyn Marion V Full spectrum selective color producing and spraying device
CH649723A5 (en) * 1982-12-17 1985-06-14 Georges Stutzmann Apparatus for cleaning pneumatic tools

Non-Patent Citations (1)

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Title
See references of WO8706324A1 *

Also Published As

Publication number Publication date
FR2597008A1 (en) 1987-10-16
FR2597008B1 (en) 1988-07-15
WO1987006324A1 (en) 1987-10-22

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