EP0369568A1 - Spender für viskose Massen - Google Patents

Spender für viskose Massen Download PDF

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Publication number
EP0369568A1
EP0369568A1 EP89303171A EP89303171A EP0369568A1 EP 0369568 A1 EP0369568 A1 EP 0369568A1 EP 89303171 A EP89303171 A EP 89303171A EP 89303171 A EP89303171 A EP 89303171A EP 0369568 A1 EP0369568 A1 EP 0369568A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
keep
dispenser
piston
dispensing
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Withdrawn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
EP89303171A
Other languages
English (en)
French (fr)
Inventor
John Patrick Anthony Cox
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.)
PC Cox Newbury Ltd
Original Assignee
PC Cox Newbury Ltd
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 PC Cox Newbury Ltd filed Critical PC Cox Newbury Ltd
Publication of EP0369568A1 publication Critical patent/EP0369568A1/de
Withdrawn legal-status Critical Current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
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • 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
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • 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
    • B05C17/00553—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 means allowing the stock of material to consist of at least two different components
    • 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

Definitions

  • This invention relates to a dispenser for dispensing viscous materials which may be of a thick liquid or pasty nature.
  • adhesives are supplied as a viscous liquid in a plastics cartridge.
  • the cartridge comprises a charge of the adhesive in a tube which has a discharge nozzle at one end and a piston acting within the tube at the other.
  • the adhesive is supplied as a plurality, usually a pair, of separate substances which are mixed to react and form the adhesive at or near the discharge nozzle.
  • the cartridge can comprise an appropriate number of tubes formed side by side or concentrically.
  • pneumatic dispensers have been developed.
  • the pneumatic actuator is operated by a trigger which causes a plunger to engage each discharge piston and force the materials from the tube.
  • a pneumatic actuator has overcome the problem of applying sufficient force to the discharge pistons, it has been found that the forces applied are often in excess of those with which a standard manual dispenser and cartridge arrangement, adapted for the pneumatic actuator, can cope.
  • a double barrel cartridge is formed from plastics material with a pair of small flanges extending perpendicularly with respect to the direction of the dispensing force.
  • the flanges are used to engage complementary channels in the dispenser to mount the tubes before the actuating device.
  • the flanges were not designed to cope with the forces associated with a pneumatic actuator and it has been found that these can become dislodged from their channels, rendering the device inoperable.
  • the materials are particularly viscous the pneumatic force has been found to be enough to cause the cartridge to expand circumferentially and allow the material to seep past the discharge pistons.
  • a dispenser for dispensing a viscous material from a cartridge having a dispensing aperture at one end comprising: a keep, adapted to house at least part of the cartridge; and actuating means, arranged to apply a material dispensing force to the cartridge; the keep being movably mounted with respect to the actuating means to move between an uncocked position, in which the cartridge is insertable within the keep, and a cocked position, in which the held cartridge is operably aligned with the actuating means.
  • the keep comprises an end wall past which a discharge nozzle of the cartridge can project, the end wall being arranged to restrain movement of the cartridge in the direction of the dispensing force.
  • the end wall be part of a housing having an internal wall which is of substantially the same sectional dimensions as the section through the cartridge.
  • the keep is pivotable between the cocked and uncocked positions.
  • the actuating means comprise a piston head or piston heads, the or each piston head engaging a discharge piston mounted within a corresponding cartridge.
  • the pivot axis does not intersect the discharge piston axis. It is further desirable that the mis-alignment between the pivot axis and the discharge piston axis is such that the dispensing force tends to urge the keep into the cocked position.
  • a double-barrel dispenser for mixing and dispensing two separate viscous materials comprises a pneumatic cylinder 10, having a barrel 12 containing a pneumatic piston 14.
  • the piston 14 carries two piston rods 16, whose axes intersect a common diameter of the piston 14 and are at equal distances from the axis of the piston 14.
  • Each piston rod 16 is terminated in an actuating piston head 17.
  • a central rod 16A is also attached to the piston 14.
  • the rod 16A extends parallel to the piston rods 16 but above the center of the piston 14.
  • the rod 16A is terminated in a head portion 17A which is of a smaller diameter than the heads 17.
  • the piston rods 16 pass through closely fitting apertures in a front wall 18 of the cylinder 10, which apertures thus provide piston rod bearings.
  • the actuating piston heads 17 and head 17A are at their extreme extent of travel towards the right-hand side, as depicted in Figure 1. In this position they are received in complementary recesses in the wall 18 so that they are substantially flush with it.
  • the cylinder 10 is mounted on the top of a grip 20 by means of a collar 22.
  • Self-tapping screws 24 are received in the wall of the cylinder 10 through holes in the collar 22.
  • the collar 22 is bolted to the grip 20 by means of bolts 26, which pass through holes in flanges 28, which extend from a stock portion 30 formed on a forward end of the collar 22, down either side of the grip 20.
  • the stock 30 is also formed with a bracket comprising a pair of upwardly extending arms 32 and 33 to either side of the actuating piston heads 17.
  • a keep 34 is pivotably mounted between the arms 32 and 33 by means of studs 36.
  • Each stud extends from each of the arms 32, 33 into an adjacent protrusion 38 formed on the outside of the keep 34.
  • the common axis of the studs 36 is above the axis of the piston rods 16 and cylinder 10.
  • the keep 34 consists of a pair of partially defined parallel tubular bores, merged with one another along an innermost region, to define a generally "Figure 8" section channel in which a double-barrel cartridge 40 of materials to be dispensed can be inserted as a closely fitting item.
  • the end of the keep 34 remote from the stock 30 is formed with an aperture 42 through which an outlet boss 44 of the loaded double-barrel cartridge projects.
  • a pivotably mounted trigger 48 which is used to actuate a control valve which regulates the passage of actuating air from an air supply (not shown) which is connected to a threaded intake 50 in the base of the grip 20.
  • An outlet of the control valve is connected through a flexible line 52, to the rear of the pneumatic cylinder 10.
  • the flexible line 52 leads through an inlet to regulator and dump valves.
  • the dump valve 56 contains a flexible disc 58.
  • On release of the trigger 48 the pressure in the barrel 12 moves the disc 58 to the right as seen in Figure 4, thus opening a large outlet port (not shown) which opens through an adjacent end wall 62 and provides for rapid decompression (dumping) of the pneumatic cylinder 10.
  • the cartridge 40 comprises a pair of separate bores defined within the same Figure 8 section plastics moulding 54 and a dispensing piston (not shown) in each bore which is used to push the viscous material toward the boss 44.
  • the rear piston-end of the cartridge 40 is formed with a pair of straight flanges (not shown) which face in the direction of the axis of the bores. When the cartridge is inserted in the keep 34 these flanges rest in complementary recesses in the keep 34.
  • the cartridge is delivered with a cap screwed to the boss 44 and the two bores filled with the two parts of the material to be dispensed.
  • the cap is unscrewed from the boss 44 and replaced by a nozzle.
  • the heads 17 and 17A are removed to their fully retracted positions so that they are substantially flush with the front wall 18.
  • the keep 34 is then swung about its pivot studs 36 into an uncocked position in which the end of the keep 34 normally nearest the cylinder 10 is exposed so that the cartidge 40 can be inserted.
  • the cartridge 40 is inserted so that the nozzle on the boss 44 projects through the aperture 42 and the front face thereof is braced against the inner surface of an end wall of the keep 34.
  • the keep 34 is swung into the cocked position in which the piston end of the loaded cartidge swings past the front wall 18 to lie in line with the piston heads 17.
  • the trigger is squeezed to permit air from the supply connected to the threaded intake 50 to act on the face of the pneumatic piston 14 and thus urge the piston heads 17 out of the plane of the front wall 18 and into engagement with the cartridge pistons.
  • the material is urged out of the nozzle 44 to be controllably dispensed as each of the piston heads 17, extending into its respective bore, pushes a cartridge piston.
  • the cartridge is a close fit within the bores. This will effectively enhance the resistance of the cartridge to distortion in both the axial and circumferential directions as, in use, the cartridge will become axially and circumferentially braced against the inner surface of the keep 34.
  • a force can conveniently be applied to the head portion 17A to force the piston heads 17 back to their fully retracted position.
  • the keep has been described as being pivotable about an axis perpendicular to the axis of the cartridge bores it could equally well be that the keep is movable out of the path of the piston heads about another axis, such as one parallel to the cartridge axis, so that the keep is effectively rolled between positions.
  • the dispenser is specifically described as having a pneumatic actuator it is to be understood that the dispenser could be provided with other actuating means to equal effect.
  • the invention provides a restraint for housing a cartridge against which the dispensing force can be exerted without having to rely on the inherent rigidity of the material from which the cartridge is formed.
  • the keep By housing the cartridge the keep provides a simple manner in which the cartridge or cartridges can be loaded simply and reliably. Alignment of the cartridge with the actuating piston heads is thus dictated by the predefined movement of the keep between limits about its pivot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP89303171A 1988-11-15 1989-03-30 Spender für viskose Massen Withdrawn EP0369568A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8826685 1988-11-15
GB888826685A GB8826685D0 (en) 1988-11-15 1988-11-15 Dispensers for viscous material

Publications (1)

Publication Number Publication Date
EP0369568A1 true EP0369568A1 (de) 1990-05-23

Family

ID=10646880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89303171A Withdrawn EP0369568A1 (de) 1988-11-15 1989-03-30 Spender für viskose Massen

Country Status (3)

Country Link
EP (1) EP0369568A1 (de)
JP (1) JPH02144168A (de)
GB (1) GB8826685D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082597A (en) * 1998-02-18 2000-07-04 P.C. Cox Limited Dispenser for viscous material

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7163130B2 (en) 2002-10-18 2007-01-16 Luc Marcel Lafond Portable gas powered fluid dispenser
US7188753B2 (en) 2004-04-20 2007-03-13 Black & Decker Inc. Pressure release connection and pneumatic dispensing device
US7275663B2 (en) 2004-04-20 2007-10-02 Black & Decker Inc. Dispensing device using multiple gas cartridges
US6935541B1 (en) 2004-08-17 2005-08-30 Black & Decker Inc. Caulk gun pressurizing system
US7185792B2 (en) 2004-08-25 2007-03-06 Black & Decker Inc. Dispensing device with rack and pinion drive for nozzle valve
US7261220B2 (en) 2004-08-27 2007-08-28 Black & Decker Inc. Cordless DC caulk gun
CN102589636B (zh) * 2012-03-16 2015-12-30 陈贻国 一种计量取液瓶

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418052A1 (de) * 1983-05-31 1984-12-06 Matsushita Electric Works, Ltd., Kadoma, Osaka Elektrisch angetriebene pressvorrichtung fuer die druckbeaufschlagung einer viskosen masse
FR2580522A1 (fr) * 1985-04-20 1986-10-24 Hilti Ag Appareil pour comprimer des recharges
DE8702055U1 (de) * 1987-02-11 1987-07-02 Schneider, Friedhelm, 5226 Reichshof Dosierpistole für Flüssigkeiten und Pasten
EP0236129A2 (de) * 1986-03-03 1987-09-09 P.C. Cox (Newbury) Limited Pneumatisches Auftraggerät für viskose Massen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418052A1 (de) * 1983-05-31 1984-12-06 Matsushita Electric Works, Ltd., Kadoma, Osaka Elektrisch angetriebene pressvorrichtung fuer die druckbeaufschlagung einer viskosen masse
FR2580522A1 (fr) * 1985-04-20 1986-10-24 Hilti Ag Appareil pour comprimer des recharges
EP0236129A2 (de) * 1986-03-03 1987-09-09 P.C. Cox (Newbury) Limited Pneumatisches Auftraggerät für viskose Massen
DE8702055U1 (de) * 1987-02-11 1987-07-02 Schneider, Friedhelm, 5226 Reichshof Dosierpistole für Flüssigkeiten und Pasten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082597A (en) * 1998-02-18 2000-07-04 P.C. Cox Limited Dispenser for viscous material

Also Published As

Publication number Publication date
JPH02144168A (ja) 1990-06-01
GB8826685D0 (en) 1988-12-21

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