EP0693033B1 - A dispenser for plastic material - Google Patents

A dispenser for plastic material Download PDF

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Publication number
EP0693033B1
EP0693033B1 EP93910493A EP93910493A EP0693033B1 EP 0693033 B1 EP0693033 B1 EP 0693033B1 EP 93910493 A EP93910493 A EP 93910493A EP 93910493 A EP93910493 A EP 93910493A EP 0693033 B1 EP0693033 B1 EP 0693033B1
Authority
EP
European Patent Office
Prior art keywords
holder
dispenser
carrier
piston rod
dispenser according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93910493A
Other languages
German (de)
French (fr)
Other versions
EP0693033A1 (en
Inventor
Reimar Jungegard
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.)
Loctite Sweden AB
Original Assignee
Loctite Sweden AB
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 Loctite Sweden AB filed Critical Loctite Sweden AB
Priority to AT93910493T priority Critical patent/ATE173712T1/en
Publication of EP0693033A1 publication Critical patent/EP0693033A1/en
Application granted granted Critical
Publication of EP0693033B1 publication Critical patent/EP0693033B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • 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
    • 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
    • B05C17/0116—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 characterised by the piston driving means
    • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
    • B05C17/0123—Lever actuated

Definitions

  • the present invention refers to a dispenser for dispensing plastic material from at least one cylindrical container unit, said dispenser comprising a carrier with at least one manoeuvrable piston rod, which is connected to means for displacing the rod when dispensing said material, and a holder for mounting the container unit in a fixed position for use, which position is coaxial with the longitudinal axis of the piston rod, which holder is provided with a connection device for a neck portion belonging to the container unit, and valve means for opening or closing a feed out opening for said material, and which holder is forming a unit with the valve device which unit is detachable from the carrier.
  • Dispensers for plastic material can for example be used for dispensing two-component putty, which for instance can be used in car garages when repairing collision damages, before lacquering.
  • Said putty is available in different qualities, from coarse to fine putty.
  • the putty is supplied in a cylindrical container, whose bottom is displaceable in the longitudinal direction of the cylinder, so that the putty compound can be pressed out through an opening at the opposite end of the cylinder.
  • a dispenser for dispensing such putty is provided with a screw attachment for the container, and means for displacing a piston rod which drives the bottom of the container ahead.
  • the putty is often of a two-component type, whereby an amount of hardener, which is directly proportional to the amount of putty, is dispensed simultaneously with the help of a second piston rod arranged in parallel with the first rod.
  • a dispenser fixed to the wall is difficult to clean from dispensed putty, which remains at the feed out opening.
  • a common problem is therefore, that remaining remnants of old, slowly drying putty are to be found in the feed out opening area. If such old putty is mixed into a batch of fresh putty, the result of the puttying will be poor. If the batch of putty is rejected as unfit for use, this will lead to economical consequences since the price per kilogram of putty is relatively high. Alternatively, if a batch of putty is used which contains hard lumps of old putty, this will lead to an increase of the job time, required to attain a perfect puttying result.
  • GB-A-2 099 514 discloses a toothpaste dispenser including a mounting plate and a housing for holding a collapsible tube.
  • the housing is detachable from the mounting plate, which is provided with valve means for dispensing the toothpaste.
  • the purpose of the present invention is to provide a putty dispenser, being more comfortable and easier to keep clean, and also to obtain an environmentally better working situation.
  • a dispenser according to claim 1 has been provided. According to this solution one and the same dispenser can be used for different types of putty.
  • the dispenser according to the invention is useful for different types of plastic material.
  • the dispenser shown in the drawings is specially designed to provide putty of two-component type.
  • the putty is supplied in a cylindrical cartridge container 10, provided with a neck portion 11 at its feed out end, having an outer screw thread.
  • the opposite end of the cartridge container 10 is provided with a bottom which is displaceable in the longitudinal direction of the cylinder, so that the putty compound can be pressed out through the neck opening 11 at the opposite end of the cylinder.
  • the hardener is supplied in a tube-shaped container 12.
  • the dispenser includes a carrier 13 and a detachably arranged holder 14.
  • the carrier includes a L-shaped plate 15, 16 with a short shank section 15 and a long shank section 16.
  • the dispenser is oriented hanging vertically on a wall, so that the long shank 16 rests against the wall.
  • the short shank 15 then extends perpendicularly from the wall and forms a hold for a per se known pistol mechanism 17.
  • This mechanism is provided with a fixed handle 18 and a hinged handle 19, with whose help a piston rod 20 can be pumped in the longitudinal direction of the rod.
  • the lower end of the rod is provided with a pressure plate 21, which acts against the bottom of the cartridge container 10.
  • connection element 22 transfers the motion of the rod 20 to a second, in parallel working piston rod 23, which extends into the hardener container 12 with its lower end, and acts to dispense hardener fluid via a downwards bent spout 24. From the above is evident that the diameters of the containers 10 and 12 determine the quantity of dispense compound, so the correct proportions of putty and hardener are obtained.
  • the connection piece 22 is provided with a locking nut 25, with whose help the piston rod 23 can be disconnected and dislocated in relation to rod 20.
  • the carrier 13 is provided with two perpendicularly projecting bars 26 at the lower end of the shank section 16, which bars are connected via vertical rods 27 to the shank section 15.
  • the bars 26 are U-shaped with the openings turned against each other.
  • the holder 14 includes a rectangular plate 28 formed by a strong sheet metal, resting in the slots of the U-shaped bars 26, in a position defined by bosses 26a.
  • the upper side of the plate 28 is provided with an internal screw attachment 29 for the container 10 and a pipe joint 30 for the container 12.
  • the underside of the plate 28 is provided with a valve in the form of a disc 31, which is pivoted at a bolt axle 32 and maneuverable by means of a handle 33.
  • the disc is provided with an opening 34 located between the axle 32 and the periphery edge of the disc, which opening is placed in front of a corresponding opening in the plate 28, in one turning position of the plate. This turning position is defined by a downwards directed projecting boss 35 at the underside of the plate 28.
  • a second end position for the handle 33 is defined by a stopping surface 36 at a downwards folded border of the plate.
  • the disc 31 is provided with a first sealing strip 37 along its periphery edge and a second sealing strip 38 round the opening 34. By means of these both strips, an efficient sealing is obtained in the valve area.
  • the distance between the dispense opening of the container and the opening 34 of the disc is very short and contains an insignificant amount of putty. Besides, a distinct cut of the putty string takes place when the handle is maneuvered from the open position to the closed position. Due to the long distance between the opening 34 of the disc and the spout 24 for the hardener, the risk of contact between hardener and putty at the underside of the holder is nonexistent.
  • the detachable holder 14 can be lifted out from the carrier 13 after that the piston rod 20 has been disconnected from its displacing mechanism 17-19, and has been displaced upwardly to its upper end position together with the piston rod 23.
  • the holder can now be removed to a place suitable for cleaning the valve opening, e.g. in a fume cupboard.
  • the holder can then either be remounted in the carrier 13, or be replaced by another holder with putty of another quality.
  • the carrier can be provided with other means for displacing the piston rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

A dispenser for dispensing plastic material from at least one cylindrical container unit (10). The dispenser comprises a carrier (13) with at least one manoeuvrable piston rod (20), which is connected to means for displacing the rod when dispensing said material, and a holder (14) for mounting the container unit in a fixed position for use, which position is coaxial with the longitudinal axis of the piston rod (20). The holder is provided with a connection device (29) for a neck piece belonging to the container unit, and a valve device (31) for opening or closing a feed out opening (34) for said material. The holder (14) with the valve device (31) forms a unit which is detachable from the carrier (13).

Description

TECHNICAL AREA
The present invention refers to a dispenser for dispensing plastic material from at least one cylindrical container unit, said dispenser comprising a carrier with at least one manoeuvrable piston rod, which is connected to means for displacing the rod when dispensing said material, and a holder for mounting the container unit in a fixed position for use, which position is coaxial with the longitudinal axis of the piston rod, which holder is provided with a connection device for a neck portion belonging to the container unit, and valve means for opening or closing a feed out opening for said material, and which holder is forming a unit with the valve device which unit is detachable from the carrier.
BACKGROUND OF THE INVENTION
Dispensers for plastic material can for example be used for dispensing two-component putty, which for instance can be used in car garages when repairing collision damages, before lacquering.
Said putty is available in different qualities, from coarse to fine putty. The putty is supplied in a cylindrical container, whose bottom is displaceable in the longitudinal direction of the cylinder, so that the putty compound can be pressed out through an opening at the opposite end of the cylinder. A dispenser for dispensing such putty is provided with a screw attachment for the container, and means for displacing a piston rod which drives the bottom of the container ahead. The putty is often of a two-component type, whereby an amount of hardener, which is directly proportional to the amount of putty, is dispensed simultaneously with the help of a second piston rod arranged in parallel with the first rod.
These dispensers must be designed rather strong in order to resist the forces required to press out the viscous putty. Putty dispensers are consequently usually units that are fixed to the wall, of which two or more normally are needed in a workshop, in order to provide both coarse and fine putty.
A dispenser fixed to the wall is difficult to clean from dispensed putty, which remains at the feed out opening. A common problem is therefore, that remaining remnants of old, slowly drying putty are to be found in the feed out opening area. If such old putty is mixed into a batch of fresh putty, the result of the puttying will be poor. If the batch of putty is rejected as unfit for use, this will lead to economical consequences since the price per kilogram of putty is relatively high. Alternatively, if a batch of putty is used which contains hard lumps of old putty, this will lead to an increase of the job time, required to attain a perfect puttying result.
Problems also arise when the old putty emigrates and comes into contact with hardener paste, which can result in that the dispenser becomes unfit for use, at least temporary.
It is consequently necessary to clean each putty dispenser regularly in order to avoid problems with old putty. As the construction is fixed to the wall, it will be difficult to dismount the dispenser, and the cleaning therefore takes place in situ, which usually causes spreading of volatile solvents within the workshop.
GB-A-2 099 514 discloses a toothpaste dispenser including a mounting plate and a housing for holding a collapsible tube. The housing is detachable from the mounting plate, which is provided with valve means for dispensing the toothpaste.
THE TECHNICAL PROBLEM
The purpose of the present invention is to provide a putty dispenser, being more comfortable and easier to keep clean, and also to obtain an environmentally better working situation.
THE SOLUTION
For this purpose a dispenser according to claim 1 has been provided. According to this solution one and the same dispenser can be used for different types of putty.
Further variants of the invention will be clear from the subsequent claims.
DESCRIPTION OF THE DRAWINGS
The invention will now be described with references to an embodiment shown in the enclosed drawings, in which
Fig. 1
is a planar view showing a dispenser according to the invention seen from the front,
Fig. 2
shows the dispenser in Fig. 1 in a side-elevation, with an extra replaceable holder, and
Fig. 3
shows the replaceable holder seen from below.
DESCRIPTION OF AN EMBODIMENT
The dispenser according to the invention is useful for different types of plastic material. The dispenser shown in the drawings is specially designed to provide putty of two-component type.
The putty is supplied in a cylindrical cartridge container 10, provided with a neck portion 11 at its feed out end, having an outer screw thread. The opposite end of the cartridge container 10 is provided with a bottom which is displaceable in the longitudinal direction of the cylinder, so that the putty compound can be pressed out through the neck opening 11 at the opposite end of the cylinder. The hardener is supplied in a tube-shaped container 12.
The dispenser includes a carrier 13 and a detachably arranged holder 14. The carrier includes a L- shaped plate 15, 16 with a short shank section 15 and a long shank section 16. The dispenser is oriented hanging vertically on a wall, so that the long shank 16 rests against the wall. The short shank 15 then extends perpendicularly from the wall and forms a hold for a per se known pistol mechanism 17. This mechanism is provided with a fixed handle 18 and a hinged handle 19, with whose help a piston rod 20 can be pumped in the longitudinal direction of the rod. The lower end of the rod is provided with a pressure plate 21, which acts against the bottom of the cartridge container 10.
A connection element 22 transfers the motion of the rod 20 to a second, in parallel working piston rod 23, which extends into the hardener container 12 with its lower end, and acts to dispense hardener fluid via a downwards bent spout 24. From the above is evident that the diameters of the containers 10 and 12 determine the quantity of dispense compound, so the correct proportions of putty and hardener are obtained. The connection piece 22 is provided with a locking nut 25, with whose help the piston rod 23 can be disconnected and dislocated in relation to rod 20.
The carrier 13 is provided with two perpendicularly projecting bars 26 at the lower end of the shank section 16, which bars are connected via vertical rods 27 to the shank section 15. The bars 26 are U-shaped with the openings turned against each other.
The holder 14 includes a rectangular plate 28 formed by a strong sheet metal, resting in the slots of the U-shaped bars 26, in a position defined by bosses 26a.
The upper side of the plate 28 is provided with an internal screw attachment 29 for the container 10 and a pipe joint 30 for the container 12. The underside of the plate 28 is provided with a valve in the form of a disc 31, which is pivoted at a bolt axle 32 and maneuverable by means of a handle 33. The disc is provided with an opening 34 located between the axle 32 and the periphery edge of the disc, which opening is placed in front of a corresponding opening in the plate 28, in one turning position of the plate. This turning position is defined by a downwards directed projecting boss 35 at the underside of the plate 28. A second end position for the handle 33 is defined by a stopping surface 36 at a downwards folded border of the plate.
The disc 31 is provided with a first sealing strip 37 along its periphery edge and a second sealing strip 38 round the opening 34. By means of these both strips, an efficient sealing is obtained in the valve area. The distance between the dispense opening of the container and the opening 34 of the disc is very short and contains an insignificant amount of putty. Besides, a distinct cut of the putty string takes place when the handle is maneuvered from the open position to the closed position. Due to the long distance between the opening 34 of the disc and the spout 24 for the hardener, the risk of contact between hardener and putty at the underside of the holder is nonexistent.
The detachable holder 14 can be lifted out from the carrier 13 after that the piston rod 20 has been disconnected from its displacing mechanism 17-19, and has been displaced upwardly to its upper end position together with the piston rod 23. The holder can now be removed to a place suitable for cleaning the valve opening, e.g. in a fume cupboard. The holder can then either be remounted in the carrier 13, or be replaced by another holder with putty of another quality.
The invention is not limited to the embodiment described above, instead several variants are conceivable within the scoop of the following claims. For instance, the carrier can be provided with other means for displacing the piston rod.

Claims (7)

  1. A dispenser for dispensing plastic material from at least one cylindrical container unit (10), said dispenser comprising a carrier (13) with at least one manoeuvrable piston rod (20), which is connected to means for displacing the rod when dispensing said material, and a holder (14) having an opening therein and having an upper side onto which a connection device (29) for a neck portion of the container unit (10) is mounted for mounting the container unit in a fixed position for use, which position is coaxial with the longitudinal axis of the piston rod (20), and valve means (31), which is maneuverable by means of a handle (33), for opening or closing a feed out opening (34) for said material,
    characterized in that the holder (14) includes a rectangular plate (28) in that the valve means (31) is mounted to an underside of said plate (28), and in that the holder (14) is forming a unit with the valve device (31) which unit is detachably connected to the carrier (13).
  2. A dispenser according to claim 1,
    characterized in that the carrier (13) is provided with means (26a) for fixation of the position for the holder (14).
  3. A dispenser according to claim 2,
    characterized in that said means for fixation of the position for the holder (14) include two bars (26), which extend in a substantially right angle to the longitudinal axis of the piston rod (20), and between which the holder (14) is displaceable to or from a working position.
  4. A dispenser according to claim 3,
    characterized in that the bars (26) are U-shaped.
  5. A dispenser according to claim 3,
    characterized in that the carrier (13) includes a L-shaped plate (15, 16), in whose short shank section (15), which is turned upwards, the piston rod (20) and its displacing means (17-19) are mounted.
  6. A dispenser according to claim 5,
    characterized in that the bars (26) are mounted at a lower end of the long shank section (16) of the plate, and that pull rods (27) run between the outer ends of the bars (26) and the short shank section (15).
  7. A dispenser according to any of the preceding claims,
    characterized in that the carrier (13) is provided with two parallel working piston rods (20, 23), and that the holder (14) is provided with connection devices (29, 30) for two container units (10, 12), of which one unit (12) contains a hardener for the plastic material.
EP93910493A 1993-04-05 1993-04-05 A dispenser for plastic material Expired - Lifetime EP0693033B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT93910493T ATE173712T1 (en) 1993-04-05 1993-04-05 PLASTIC MATERIAL DISPENSER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1993/000293 WO1994022740A1 (en) 1993-04-05 1993-04-05 A dispenser for plastic material

Publications (2)

Publication Number Publication Date
EP0693033A1 EP0693033A1 (en) 1996-01-24
EP0693033B1 true EP0693033B1 (en) 1998-11-25

Family

ID=20388718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93910493A Expired - Lifetime EP0693033B1 (en) 1993-04-05 1993-04-05 A dispenser for plastic material

Country Status (8)

Country Link
EP (1) EP0693033B1 (en)
AU (1) AU683615B2 (en)
DE (1) DE69322287T2 (en)
DK (1) DK0693033T3 (en)
ES (1) ES2127275T3 (en)
FI (1) FI954708A (en)
NO (1) NO307414B1 (en)
WO (1) WO1994022740A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330880A (en) * 1997-11-01 1999-05-05 Lii Liang Kuen Combined C-clamp and adhesive applicator.
DE102009031249B4 (en) * 2009-07-01 2011-06-01 Manfred Schindler Clutch-brake unit and double clutch with ball-ramp operation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000430A1 (en) * 1977-12-23 1979-07-12 O Nielsen A container for containing liquid substances and a method for making the same
GB2099514B (en) * 1981-05-30 1984-08-30 Hill Henry Rowland Dispenser
DE3723100A1 (en) * 1987-07-13 1989-01-26 Fischer Artur Werke Gmbh Device for injecting a sealing composition
DE3739459A1 (en) * 1987-10-07 1989-04-27 Knieriem Guenther Dipl Ing Fh TUBE PACK
DE3902476A1 (en) * 1989-01-27 1990-08-02 Feldmuehle Ag DISPENSING DEVICE FOR LIQUID OR PASTOESE GOETER
GB2238583B (en) * 1989-09-06 1993-11-03 3C Chemical Lan Pty Limited A dispenser for pump-type containers
GB2247049B (en) * 1990-05-25 1993-12-22 Whiterock Prod Ltd Sealant gun

Also Published As

Publication number Publication date
NO953938D0 (en) 1995-10-03
DE69322287D1 (en) 1999-01-07
NO307414B1 (en) 2000-04-03
FI954708A0 (en) 1995-10-04
ES2127275T3 (en) 1999-04-16
EP0693033A1 (en) 1996-01-24
DK0693033T3 (en) 1999-06-23
FI954708A (en) 1995-10-05
AU683615B2 (en) 1997-11-20
NO953938L (en) 1995-12-04
DE69322287T2 (en) 1999-08-19
WO1994022740A1 (en) 1994-10-13
AU4096493A (en) 1994-10-24

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