EP0052060B1 - Pistolet pour l'extrusion de produits pâteux stockés sous forme de cartouches standards - Google Patents

Pistolet pour l'extrusion de produits pâteux stockés sous forme de cartouches standards Download PDF

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Publication number
EP0052060B1
EP0052060B1 EP81420159A EP81420159A EP0052060B1 EP 0052060 B1 EP0052060 B1 EP 0052060B1 EP 81420159 A EP81420159 A EP 81420159A EP 81420159 A EP81420159 A EP 81420159A EP 0052060 B1 EP0052060 B1 EP 0052060B1
Authority
EP
European Patent Office
Prior art keywords
cartridge
piston
ram
tube
valve
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
Application number
EP81420159A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0052060A1 (fr
Inventor
Dominique Corso
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT81420159T priority Critical patent/ATE6405T1/de
Publication of EP0052060A1 publication Critical patent/EP0052060A1/fr
Application granted granted Critical
Publication of EP0052060B1 publication Critical patent/EP0052060B1/fr
Expired 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
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/015—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with pneumatically or hydraulically actuated piston or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0146—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like comprising a valve in the proximity of the nozzle that is not actuated by pressure, e.g. manually actuated

Definitions

  • the present invention relates to the extrusion of all pasty products such as sealants, glues, greases, etc. stored in standard cartridges.
  • mechanical or compressed air guns are generally used which are intended to act on the movable bottom of the cartridge in order to move it axially.
  • Air pistols produced by a compressor are also used. This type of gun wastes a large amount of air due to its operation. Indeed in order to neutralize the pressure exerted behind the movable bottom of the cartridge and in order to stop the output of the product clean it is necessary each time that the trigger is released to drain the air at the rear of the movable bottom of the cartridge. This requires the compulsory use of a compressor which delivers thousands of liters of compressed air without counting.
  • the outlet of the cartridge is associated with a flexible tube on the end of which is mounted the injector intended for the pouring of the pasty product.
  • the tube is mechanically deformed to stop the spillage of the material.
  • the rigid end piece with which the outlet of the cartridge cooperates is provided with a simple ball valve which opens or closes this end piece so that the material may or may not be ejected.
  • a simple ball valve which opens or closes this end piece so that the material may or may not be ejected.
  • the improvements which are the subject of the present invention aim to remedy these drawbacks and to ensure the production of a putty gun using only a very small amount of gas, which makes it possible to remove the compressor which is replaced by a small industrial nitrogen bottle.
  • the gun according to the invention makes it possible, by operating a simple trigger, to close or open a flexible tip following the opening of the cartridge, this action being carried out pneumatically.
  • the piston of a single-acting cylinder is associated with the flexible end piece which follows the opening of the cartridge to crush it when said cylinder is supplied by a flow of compressed gas derived from the one which acts. on the movable bottom of the cartridge, said flow being sent into the jack considered as soon as the user releases a trigger, while the actuation of the latter causes said flow to stop and release the endpiece for allow the expulsion of the pasty product.
  • a device comprising a frame 24 associated with a handle 15, said frame bearing on its part with a block 1 while its rear part receives an open jack 28.
  • the block 1 which is fixed to the front of the frame 24 by means of two screws 34, 35 (fig. 2) comprises a longitudinal bore la in which is engaged a flexible tube 2 comprising a tubular head 2a of larger diameter which is supported on the internal face of the block 1 by means of a collar 2b.
  • the head 2a engages in a counterbore 1b of the block 1.
  • the end of the tube 2 opposite its head 2a projects out of the block 1 and can receive a threaded ring 2c intended for example to receive a discharge tip not shown.
  • Another bore 1 c is formed in block 1 perpendicular to that ia.
  • This bore opens out on the base of block 1 while its smaller diameter portion ends in bore 1a.
  • the bore 1 receives a piston 4 whose head cooperates with the large diameter part of the bore 1c, its tail engaging in the smaller diameter part of said bore.
  • a return spring 3 is provided so that in the free state the tail of the piston 4 is not in contact with the periphery of the flexible tube 2 (Fig. 3).
  • the neck of a cartridge C engages inside the tubular head 2a of the flexible tube 2, the seal between the cartridge and this tube being made by bearing the shoulder of the cartridge against the flange 2b.
  • the rear part of the frame 24 supports an open jack, the cylinder 28 of which is secured to this part of the frame by a heel 14 and a transverse screw 31.
  • the cylinder 28 is open in the direction of the block 1 and we have committed to inside the bore of this cylinder a piston 30 produced for example by means of an elastomer.
  • the piston 30 comprises a peripheral lip 30a which cooperates in leaktight manner with the bore of the cylinder 28.
  • This piston 30 constitutes a stop for a spring 29 which tends to push the said piston outwards from the cylinder 28.
  • the race towards the exterior of this piston is limited by a screw 27, the head 27a of which bears in leaktight manner against a shoulder 30b of the center of the piston 30.
  • a sealing washer R can moreover be associated for this purpose with the face of the 'shoulder 30b opposite the head 27a. Note the presence of two longitudinal holes 30c, 30d communicating the interior of the cylinder 28 and the exterior so that if the compressed gas arrives in the cylinder 28 when no cartridge is in place, there is a leak which prevents the reversal of the lip 30a.
  • the compressed air arrives in the cylinder 28 through a perforation 24c of the frame 24 connected to the interior of the cylinder considered by a slide valve 22 illustrated in FIG. 7.
  • the frame 24 is provided with a transverse groove 24d, the bottom of which has a bore 24e ending in the perforation 24c (FIGS. 6 and 8).
  • a flat drawer 34 comprising two extreme stops 34a, 34b which limit its axial movement, the distance between these two stops being greater than the length of the groove 24d.
  • the hole 24e of the frame 24 is in correspondence with an opening 34c of the drawer which itself comes opposite a hole 28a formed in the cylinder 28 (fig.
  • the top of the drawer 34 having a longitudinal groove 34d.
  • one of the ends of the groove 34d is brought opposite the hole 28a so that the inside of the cylinder 28 is placed in communication with the outside (FIG. . 9).
  • seals 35, 36 are placed on either side of the drawer 34 respectively around the outlet of the holes 24e and 28a.
  • the perforations 24a and 24c are supplied with compressed air from the valve 8 via pipes 25, respectively 21 (fig. 1).
  • the valve 8 which is fixed below the frame 24 by means of a screw 7 comprises three channels 8a, 8b, 8c (fig. 10) in which the pipes 25 and 21 are fitted respectively, as well as a tube 19 the free end of which constitutes a nozzle to which the compressed gas supply is connected. It is observed that the channel 8c opens into that 8b so that the pipe 21 is supplied directly with gas.
  • a blind stepped bore 8d is formed longitudinally in the valve 8. It is noted that the part with the smallest diameter of the bore 8d is in communication with the channel 8c, while the channel 8a opens into the part with the largest diameter of the said bore .
  • valve 10 made in the form of a needle having a flange 10a.
  • This valve leaves the valve 8 through a cable gland 33 so that its free end comes to cooperate with a trigger 13.
  • a spring 18 pushes the valve outwards as illustrated in FIG. 1, 10 and 11.
  • the flange 10a of the valve 10 is placed along the length thereof so that in the extended position, that is to say when the trigger is not actuated, the outlet of the channel 8a is located at the rear of this flange so that the gas entering the valve 8 through the tube 19 can flow into the channel 8a and the pipe 25 through the rear part of the bore 8d.
  • an O-ring 11 is disposed between the flange and the gland 33 so that there is no leakage along the valve when it passes through said gland and that it is in position advanced.
  • an O-ring 12 is associated with the shoulder formed by the two diameters of the bore 8d as will be explained below.
  • the gas arrives in said cylinder, passes through the annular space between the screw 27 and the central hole of the piston 30 as well as the holes 30c and 30d to come under the movable bottom of the cartridge in order to exert pressure on it .
  • the gas arriving through the pipe 25 actuates the piston 4, the end of which clamps the tube 2 so that the pasty product cannot exit the tube.
  • the piston 4 is returned downwards by the spring 3 so that the tube is released and the product leaves the tube due to the air pressure on the movable bottom of cartridge C.
  • the gas which has just acted on the piston is expelled towards the outside by passing through the annular space between the cable gland 33 and the valve 10.
  • a device has thus been produced which allows a substantial saving of compressed air, so that it can be supplied by means of a gas cylinder, in particular when the supply of compressed air is difficult, for example when the user is on the roof of a tall building.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Basic Packing Technique (AREA)
EP81420159A 1980-11-12 1981-10-29 Pistolet pour l'extrusion de produits pâteux stockés sous forme de cartouches standards Expired EP0052060B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81420159T ATE6405T1 (de) 1980-11-12 1981-10-29 Pistole zum extrudieren pastenartiger massen, die in form von standardpatronen gelagert sind.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8024454 1980-11-12
FR8024454A FR2493891A1 (fr) 1980-11-12 1980-11-12 Pistolet a mastic sous forme de cartouche standard

Publications (2)

Publication Number Publication Date
EP0052060A1 EP0052060A1 (fr) 1982-05-19
EP0052060B1 true EP0052060B1 (fr) 1984-02-29

Family

ID=9248076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81420159A Expired EP0052060B1 (fr) 1980-11-12 1981-10-29 Pistolet pour l'extrusion de produits pâteux stockés sous forme de cartouches standards

Country Status (4)

Country Link
EP (1) EP0052060B1 (enrdf_load_stackoverflow)
AT (1) ATE6405T1 (enrdf_load_stackoverflow)
DE (1) DE3162442D1 (enrdf_load_stackoverflow)
FR (1) FR2493891A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK149527C (da) * 1983-03-23 1987-06-22 Kr Ger Maskinfabrik A S M Fugepistol
GB2162902A (en) * 1984-07-21 1986-02-12 Nippon Tansan Gas Co Ltd Viscous agent injecting instrument
GB2162903A (en) * 1984-07-21 1986-02-12 Nippon Tansan Gas Co Limited Viscous agent injecting instrument
FR2646790B1 (fr) * 1989-05-09 1991-10-04 Corso Dominique Perfectionnements aux pistolets destines a l'extrusion de produits pateux
DE4343099A1 (de) * 1993-12-17 1995-06-22 Hilti Ag Auspresswerkzeug für in Kartuschen befindlichen Massen
US5452824A (en) * 1994-12-20 1995-09-26 Universal Instruments Corporation Method and apparatus for dispensing fluid dots
US6234359B1 (en) 1998-03-20 2001-05-22 Liquid Control Corporation System for reloading dispensing tools
FR2784041B1 (fr) * 1998-10-02 2001-09-28 Patrick Andre Lucas Goret Pistolet pour la distribution d'un materiau pateux
CA2271173A1 (en) * 1999-05-06 2000-11-06 Liquid Control Corporation System for reloading dispensing tools
DE102014116607B8 (de) * 2014-11-13 2018-12-13 Heinrich König & Co. KG Kartusche zum dosierten Ausbringen von flüssigen Medien und deren Verwendung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL127734C (enrdf_load_stackoverflow) * 1966-02-01
FR1556297A (enrdf_load_stackoverflow) * 1967-11-30 1969-02-07
FR2049299A5 (enrdf_load_stackoverflow) * 1969-06-06 1971-03-26 Dieny Alfred
GB1371662A (en) * 1971-11-01 1974-10-23 Spotnails Pneumatically powered dispensing tool
SE393832B (sv) * 1975-02-24 1977-05-23 Bygg Tema Soren Johansson Ab Tryckluftsspruta for forpackade fogmassor

Also Published As

Publication number Publication date
FR2493891B1 (enrdf_load_stackoverflow) 1983-07-22
EP0052060A1 (fr) 1982-05-19
ATE6405T1 (de) 1984-03-15
FR2493891A1 (fr) 1982-05-14
DE3162442D1 (en) 1984-04-05

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