EP0395533A1 - Pistole zur Abgabe eines unter Druck dickflüssigen Stoffes, insbesondere eines Kittes - Google Patents

Pistole zur Abgabe eines unter Druck dickflüssigen Stoffes, insbesondere eines Kittes Download PDF

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Publication number
EP0395533A1
EP0395533A1 EP90401159A EP90401159A EP0395533A1 EP 0395533 A1 EP0395533 A1 EP 0395533A1 EP 90401159 A EP90401159 A EP 90401159A EP 90401159 A EP90401159 A EP 90401159A EP 0395533 A1 EP0395533 A1 EP 0395533A1
Authority
EP
European Patent Office
Prior art keywords
gun
piston
sleeve
groove
passage
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Withdrawn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
EP90401159A
Other languages
English (en)
French (fr)
Inventor
Roland Bizolier
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.)
REXSON PROCEDES
Original Assignee
REXSON PROCEDES
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 REXSON PROCEDES filed Critical REXSON PROCEDES
Publication of EP0395533A1 publication Critical patent/EP0395533A1/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Withdrawn legal-status Critical Current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
    • B05C17/002—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 with feed system for supplying material from an external source; Supply controls therefor

Definitions

  • the present invention relates to a gun for delivering a pasty product under pressure, in particular a putty.
  • These guns are for example used in manufacturing and auto repair for the jointing of parts by depositing a bead of sealant.
  • pistols of this type comprise a cylindrical casing terminated at one of its ends by an outlet nozzle, at least one passage communicating with a supply line bringing the product to be delivered under pressure to the pistol, and shutter means cooperating with a trigger so as to control the delivery of the pasty product.
  • One of the aims of the present invention is to propose a gun which allows a gradual opening and closing, smoothly, of the sealing means, in order to avoid the formation of the balls of mastic at the start and at the end of cord.
  • the aforementioned passage is a lateral passage formed in the wall of the cylindrical sleeve
  • the closure means comprising a cylindrical piston housed in the sleeve, in that it is provided on the interior surface. from the sleeve or on the external surface of the piston a calibrated groove opening at one of its ends towards the outlet nozzle, the piston being movable relative to the sleeve between a completely closed position blocking the lateral passage and a position d complete opening bringing the lateral passage into communication with the longitudinal groove, and in that the cross section of the portion of the calibrated groove communicating with the lateral passage varies continuously from the position fully closed to the fully open position.
  • the relative movement of the piston relative to the sleeve is a translational movement, the groove of the cylindrical piston extending along a generatrix thereof.
  • the variation in the cross section of the portion of the calibrated groove is a linear variation.
  • the cross section of the calibrated groove can in particular be a substantially triangular section.
  • means are advantageously provided for adjusting the stroke of the piston defining the fully open position, which easily makes it possible to adjust the product flow rate at this position.
  • the pistol essentially consists of a body 1 extended by a handle 2 allowing gripping by the operator, who also has a trigger 3 for controlling the delivery of the pasty product.
  • a socket 4 terminated at one of its ends by a nozzle 5 through which the pasty product will be delivered.
  • the internal shape of the socket 4 is cylindrical, for example cylindrical of revolution, as can be seen in FIG. 2.
  • This socket is further provided with one or more transverse passages 6 communicating with a pipe. supply 7 disposed inside the handle 2, this pipe 7 being itself connected by a flexible tube 8 to a reserve of pasty product under pressure.
  • the sleeve 4 houses a piston 9, also cylindrical, movable without play inside the sleeve 4.
  • the movement of movement of the piston 9 is for example a rectilinear translational movement produced by an axis 10 connected to the trigger handle 3 , which is itself articulated on the body 1 by a second axis 11 so as to produce a lever arm effect.
  • the piston-trigger assembly is biased at rest in a closed position, to the left of the figure, under the effect of the bias of an axial spring 12 pressing on one of the ends of the piston;
  • the piston When the operator presses the trigger handle 3 by bringing it closer to the handle 2, the piston will be moved relative to the sleeve in the direction indicated by the arrow, the assembly then being in an open position by which the pasty product will be delivered by the nozzle 5.
  • the piston 9 is provided with a longitudinal groove 13, for example of triangular section, opening at one of its ends (the left end in the figure) in the direction of the nozzle 5, and having transversely a bevel shape, the depth of the groove varying for example linearly between its left end and its right end.
  • the length of the groove 13 is chosen so that, in the closed position, no part of the groove comes opposite the passage 6 while, in the open position, this passage is facing the groove .
  • a stop screw 14 allowing to adjust the stroke of the piston 9 defining the fully open position and therefore the maximum surface of the groove 13 opposite the passage 6: there is thus a very simple means of adjusting the flow rate of the product under normal conditions, this avoids for example the use of interchangeable nozzles of different diameters.
  • the movement of the piston can be a movement other than translation, for example a movement of rotation (the part of variable section of the groove then extending over a large circle of the cylindrical piston and no longer along a generator thereof), or a combined movement of rotation and translation (helical movement).
  • This gun is particularly suitable for being incorporated into a system where the trigger is controlled automatically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
EP90401159A 1989-04-28 1990-04-27 Pistole zur Abgabe eines unter Druck dickflüssigen Stoffes, insbesondere eines Kittes Withdrawn EP0395533A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8905686 1989-04-28
FR8905686A FR2646362B1 (fr) 1989-04-28 1989-04-28 Pistolet de delivrance d'un produit pateux sous pression, notamment un mastic

Publications (1)

Publication Number Publication Date
EP0395533A1 true EP0395533A1 (de) 1990-10-31

Family

ID=9381254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401159A Withdrawn EP0395533A1 (de) 1989-04-28 1990-04-27 Pistole zur Abgabe eines unter Druck dickflüssigen Stoffes, insbesondere eines Kittes

Country Status (2)

Country Link
EP (1) EP0395533A1 (de)
FR (1) FR2646362B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007018567A1 (de) * 2007-04-18 2008-10-30 INOTEC GmbH Transport- und Fördersysteme Schlauchgebundene Einhandklebepistole zum Auftrag von pastösen Werkstoffen auf Bauuntergründe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1399849A (en) * 1919-01-09 1921-12-13 David S Chapin Apparatus for applying semifluid material
US3073349A (en) * 1959-06-04 1963-01-15 Wallace & Tiernan Inc Fluid metering device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1399849A (en) * 1919-01-09 1921-12-13 David S Chapin Apparatus for applying semifluid material
US3073349A (en) * 1959-06-04 1963-01-15 Wallace & Tiernan Inc Fluid metering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007018567A1 (de) * 2007-04-18 2008-10-30 INOTEC GmbH Transport- und Fördersysteme Schlauchgebundene Einhandklebepistole zum Auftrag von pastösen Werkstoffen auf Bauuntergründe
DE102007018567B4 (de) * 2007-04-18 2012-07-12 INOTEC GmbH Transport- und Fördersysteme Schlauchgebundene Einhandklebepistole zum Auftrag von pastösen Werkstoffen auf Bauuntergründe

Also Published As

Publication number Publication date
FR2646362A1 (fr) 1990-11-02
FR2646362B1 (fr) 1991-08-23

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