EP0589827B1 - Cassette et sacs contenant des masses de mortier durcissables - Google Patents

Cassette et sacs contenant des masses de mortier durcissables Download PDF

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Publication number
EP0589827B1
EP0589827B1 EP93810522A EP93810522A EP0589827B1 EP 0589827 B1 EP0589827 B1 EP 0589827B1 EP 93810522 A EP93810522 A EP 93810522A EP 93810522 A EP93810522 A EP 93810522A EP 0589827 B1 EP0589827 B1 EP 0589827B1
Authority
EP
European Patent Office
Prior art keywords
piston
cassette
receiving chambers
cartridge
film
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
EP93810522A
Other languages
German (de)
English (en)
Other versions
EP0589827A1 (fr
Inventor
Franz Popp
Hans Huesler
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP0589827A1 publication Critical patent/EP0589827A1/fr
Application granted granted Critical
Publication of EP0589827B1 publication Critical patent/EP0589827B1/fr
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
    • B05C17/00583—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 the container for the material to be dispensed being deformable
    • 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
    • B05C17/00576—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • 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

Definitions

  • the invention relates to a cassette for a pressing device according to the preamble of patent claim 1.
  • EP-A-0 577 312 which belongs to the state of the art according to Article 54 (3) EPC, describes a cassette for an extrusion device, which is used to hold masses filled in plastic bags.
  • the cassette is cylindrical and open on its end faces.
  • a piston is axially displaceable within the cassette.
  • the piston has symmetrically designed end faces and can be acted upon alternately by both end faces.
  • the invention is therefore based on the object of designing a cassette for a pressing device in such a way that a reduction in wear on the piston and a simpler and easier usability of the pressing device is achieved.
  • the piston has combs running along its circumference in the longitudinal direction of the piston.
  • Such combs have the advantage that the entire circumference does not lie against the inner wall of the receiving chamber: the stripping of the film material on the inner wall is nevertheless ensured and the friction which arises when the piston is axially displaced is correspondingly greatly reduced.
  • a cassette of this type which has a piston in its receiving chambers, can be alternately equipped with squeezable foil bags from each of its end faces after each squeezing process. After the pressing process, the cassette is removed from the pressing device, the folded film is pulled out and then rotated through 180 °, so that the new film bags can be inserted on the opposite end of the cassette.
  • the piston which was displaced into a front end position in the cassette during the pressing-out process previously formed thus forms a rear wall or a base part for the new film bags which can be inserted into the cassette. This is an advantage in that the foil bags can easily be inserted into the cassette without having to worry about whether they can fall out on the back.
  • the piston arranged in the cassette can be acted upon alternately on both sides in the central area by the piston rod.
  • Significant advantages of the design of the cassette according to the invention can be seen in the fact that the piston is located in the cassette and does not have to be inserted into the cassette with each new pressing process.
  • the piston rod is retracted without frictional resistance, since the end face of the piston rod no longer carries the piston but only pressurizes it in the central area.
  • the arrangement of the piston in the cassette also ensures that the replacement of a piston that is used several times and is damaged by mechanical wear and tear takes place by the cassette with this damaged piston also being disposed of. Time-consuming replacement of the piston on the piston rod with the help of suitable tools is therefore no longer necessary.
  • the piston expediently consists of at least two parts which have symmetrically designed end faces.
  • the production of such a piston for the cassette is economical because the piston is easier or easier to manufacture.
  • the piston must be thin or thick-walled and have a specific profile that engages the foil pouch.
  • the two parts of the piston can be arranged in the cassette without being firmly connected to one another.
  • the receiving chambers expediently have trains running in the longitudinal direction and interacting with the ridges of the piston, which are generally designed as grooves which serve to receive the trains arranged on the piston.
  • This type of training ensures a very high positional stability of the piston in the receiving chamber guaranteed because the piston is unable to tilt in any way in the receiving chamber.
  • a narrow configuration of these grooves ensures that the film bag arranged in the receiving chamber cannot penetrate into these grooves.
  • Corresponding combs arranged on the piston can engage in these narrow grooves and grip the foil bag well.
  • Such receiving chambers or pistons also have the advantage that rotation of the piston within the receiving chamber is not possible. A helical twisting of the film bag in the receiving chamber during the pressing process can thus be prevented.
  • the receiving chambers advantageously have a circular cross section. Since the production of tubular film bags is simple and economical, the receiving chambers have a circular cross section. Pistons which have an essentially circular cross section can also be produced economically.
  • the receiving chambers expediently have different volumes.
  • certain mixing ratios are required, which can only be achieved by pressing at least two different components in differently sized receiving chambers at the same time.
  • the 1 has a tubular middle part 2, into which a cassette 3 is inserted, which holds a film pouch 4 containing one or more components.
  • the inserted cassette 3 contains an axially displaceable piston 5 with symmetrical end faces 5b, 5c.
  • the piston is alternately loaded on both sides, in each case centrally by a piston rod 6.
  • a nozzle 7 is arranged, which cooperates with the film bag 4 and is metered through the masses pressed out of the film bag 4 to a processing point, not shown.
  • connection piece 8 which receives the entire feed mechanism 9 of the pressing device 1.
  • a piston rod is guided through the connecting piece 8 and can be axially displaced by the feed mechanism 9.
  • the connecting piece 8 has a handle part 10, to which a trigger lever 12 is fastened so that it can pivot about an axis 11 in the direction of the handle part 10.
  • the cassette 3 consists of a receiving chamber 13 which is open on both end faces 13a, 13b.
  • the length of the cassette 3 is matched to the film bag 4 to be accommodated, to the length of the piston 5 arranged in the cassette 3 and, if appropriate, to the folded film bag 4, which alternately comes to rest on one end face 13a, 13b.
  • the piston 5 arranged in the cassette 3 is matched to the frontal contour of the film bag 4 and has a recess 5a in the central area, which serves to receive the closure element 14 in the form of a clip.
  • a free space 15 is formed in each case in the outer circumference of the piston 5, which essentially serves to accommodate the folded-up foil bag 4.
  • the piston 5 arranged in the receiving chamber 13 is formed in two parts and can be acted upon centrally by the piston rod 6 at the end in each case.
  • FIG. 2 shows a cassette 3, in the receiving chamber 13 of which an axially displaceable piston 5 which is in the end position and which can be acted upon alternately on both sides is arranged.
  • the cassette 3 is equipped with a filled foil bag 4. In the arrangement shown, the cassette 3 can be inserted into a pressing device 1 in such a way that the piston 5 faces the piston rod 6.
  • FIG 3 shows the same cassette 3 which was removed from the pressing device 1 after half the pressing process.
  • the piston 5 is located approximately in the middle of the receiving chamber 13 and the film bag 4 is partially expressed, which is also evident in particular from the film bag 4 which is partially folded.
  • FIG. 4 shows the cassette 3 according to FIG. 2 and FIG. 3 after the pressing process has ended and after the cassette 3 has been removed from the pressing device 1.
  • the remaining foil bag 4 lies folded up in the area of the end face 13b of the receiving chamber 13 and on the piston 5.
  • the film bag 4 can be connected at its end on the pressing-out direction to the nozzle 7, which protrudes above the receiving chambers 13 of the cassette 3 when such a film bag 4 is inserted in the cassette 3.
  • the cassette 3 shown in FIGS. 1 to 4 can have a plurality of receiving chambers 13, in each of which a piston 5 is arranged.
  • the volume of the individual receiving chambers 13 can be of the same size or of different sizes.
  • FIG. 5 shows a further cassette 18, shown in cross section, in which a piston 16 is inserted.
  • the piston 16 has combs 16a which cooperate with corresponding trains 18a which are arranged on the inner wall 17 of the receiving chamber and extend in the longitudinal direction of the receiving chamber. By arranging such trains 18a and combs 16a, a high positional stability of the piston in the receiving chamber is achieved.
  • the piston 16 also has symmetrically designed end faces, the symmetry of which is not visible in the selected illustration.

Claims (5)

  1. Cassette destinée à un appareil d'extrusion et servant à recevoir des sacs en feuille contenant des masses à un ou plusieurs composants, comprenant une ou plusieurs chambres de réception allongées, parallèles entre elles et ouvertes frontalement (13) dans lesquelles est disposé un piston (5, 16) à déplacement axial qui peut être sollicité alternativement des deux côtés et dont les faces frontales (5b, 5c) sont symétriques, caractérisée en ce que, le long de sa périphérie, le piston (16) comporte des nervures (16a) qui s'étendent dans la direction longitudinale du piston (16).
  2. Cassette selon la revendication 1, caractérisée en ce que le piston (5, 16) est constitué d'au moins deux parties qui présentent des faces frontales symétriques (5b, 5c).
  3. Cassette selon la revendication 1, caractérisée en ce que les chambres de réception comportent des rainures (18a) qui s'étendent dans la direction longitudinale et coopérent avec les nervures (16a) du piston (16).
  4. Cassette selon l'une des revendications 1 à 4, caractérisée en ce que les chambres de réception (13) présentent une section transversale circulaire.
  5. Cassette selon l'une des revendications 1 à 5, caractérisée en ce que les chambres de réception (13) présentent un volume différent.
EP93810522A 1992-09-19 1993-07-21 Cassette et sacs contenant des masses de mortier durcissables Expired - Lifetime EP0589827B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4231421 1992-09-19
DE4231421A DE4231421A1 (de) 1992-09-19 1992-09-19 Kassette und aushärtbare Mörtelmassen enthaltende Beutel

Publications (2)

Publication Number Publication Date
EP0589827A1 EP0589827A1 (fr) 1994-03-30
EP0589827B1 true EP0589827B1 (fr) 1997-06-11

Family

ID=6468359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810522A Expired - Lifetime EP0589827B1 (fr) 1992-09-19 1993-07-21 Cassette et sacs contenant des masses de mortier durcissables

Country Status (3)

Country Link
EP (1) EP0589827B1 (fr)
AT (1) ATE154323T1 (fr)
DE (3) DE4231421A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2247801A1 (fr) * 1997-10-15 1999-04-15 Arthur Zwingenberger Appareil servant a melanger et a appliquer une matiere de moulage composite
AUPR248700A0 (en) * 2000-12-22 2001-02-01 Selleys Pty Limited Dispensing apparatus
AU2002215704B2 (en) * 2000-12-22 2005-07-28 Selleys Pty Limited Dispensing apparatus
EP3714994A1 (fr) * 2019-03-26 2020-09-30 Sulzer Mixpac AG Piston, cartouche, distributeur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587683A (en) * 1949-09-09 1952-03-04 Robert E Barry Disposable caulking gun
GB1452059A (en) * 1973-02-15 1976-10-06 Cox P C Assemblies for
DE3200542A1 (de) * 1982-01-11 1983-07-21 Teroson Gmbh, 6900 Heidelberg Verfahren zum entleeren von kartuschenartigen behaeltern sowie behaelter zur durchfuehrung des verfahrens
US4753536A (en) * 1987-03-09 1988-06-28 Spehar Edward R Dispensing mixer for the storage and mixing of separate materials
DE3739459A1 (de) * 1987-10-07 1989-04-27 Knieriem Guenther Dipl Ing Fh Schlauchbeutel-packung
DE8901554U1 (fr) * 1989-02-10 1989-06-08 Ritter, Franz Peter, Ing.(Grad.), 8933 Untermeitingen, De

Also Published As

Publication number Publication date
DE4244982B4 (de) 2005-03-10
DE4231421A1 (de) 1994-03-24
DE59306723D1 (de) 1997-07-17
ATE154323T1 (de) 1997-06-15
EP0589827A1 (fr) 1994-03-30

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