EP0189736B1 - Mehrzweckspritzpistole - Google Patents

Mehrzweckspritzpistole Download PDF

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Publication number
EP0189736B1
EP0189736B1 EP19850830019 EP85830019A EP0189736B1 EP 0189736 B1 EP0189736 B1 EP 0189736B1 EP 19850830019 EP19850830019 EP 19850830019 EP 85830019 A EP85830019 A EP 85830019A EP 0189736 B1 EP0189736 B1 EP 0189736B1
Authority
EP
European Patent Office
Prior art keywords
barrel
pipe
aperture
tubular housing
air
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
EP19850830019
Other languages
English (en)
French (fr)
Other versions
EP0189736A1 (de
Inventor
Italo Nonis
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
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 Individual filed Critical Individual
Priority to DE8585830019T priority Critical patent/DE3570101D1/de
Priority to EP19850830019 priority patent/EP0189736B1/de
Publication of EP0189736A1 publication Critical patent/EP0189736A1/de
Application granted granted Critical
Publication of EP0189736B1 publication Critical patent/EP0189736B1/de
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
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1413—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device
    • B05B7/1418—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device comprising means for supplying an additional liquid
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure

Definitions

  • This invention is directed to compressed air operated hand held spray guns for applying finishes to walls and similar surfaces.
  • a typical spray gun used for this purpose is that sold by Bliss & Laughlin Industries under the trade mark Gold- blatt.
  • These spray guns are essentially adaptations of the compressed air operated spray guns utilized to spray paints and lacquers, modified so as to be able to handle sprayable materials of various textures and consistencies.
  • Such guns are inevitably prone to occasional blockage, jamming and damage by the material being sprayed, and since it is often impracticable to dismantle the gun to correct such problems on site, an adequate supply of spare guns must be available.
  • such guns are neither designed for nor capable of spraying the coarse particulate materials used as a surface layer on some types of wall finish such as pebble-dash.
  • DE-A-2 239 902 (Fleissner).
  • the applicant is seeking to provide an air operated gun which is adaptable not only to applying particulate material to plaster, but will also apply the plaster itself, whilst being of a construction which not only minimizes the risk of jamming or blockage but permits ready disassembly on site should a problem occur.
  • a hand held compressed air spray gun comprising, in addition to the above prior art characteristics (a), (b), (c), (d) and (e):
  • This provides a structure which is easily dismantled and cleaned, since the trigger mechanism is wholly external to the barrel, and the parts exposed to the material to be sprayed are housed in a uniform cylindrical bore from which they can readily be removed.
  • the barrel assembly can readily be changed to suit different materials and different modes of operation.
  • the means coupling the pipe to the barrel is such as to restrain axial movement of the pipe relative to the barrel, whilst permitting rotational movement of the barrel relative to the tubular housing, and wherein the barrel is provided with a handle for the manual application of rotational movement thereto whereby to adjust the degree of coincidence between the aperture in the barrel and the aperture in the housing and to control the passage of material from the hopper into the barrel for entrainment by air passed through the pipe.
  • the means coupling the pipe to the barrel is such as to permit relative axial movement of the pipe relative to the barrel, and an aperture plate is located at the front end of the barrel, the nozzle of the pipe having a normal position closing an aperture of the aperture plate, the trigger mechanism when coupled to the rear end of the air pipe being operative to move the latter axially so that the nozzle moves between its normal position and a position inward of the aperture, whereby material entering the barrel from the hopper may be entrained by air passed through the pipe.
  • the invention also extends to a hand held compressed air gun for spraying particulate materials
  • a hand held compressed air gun for spraying particulate materials
  • a hand held stock supporting a tubular housing, a barrel member having a breech end rotatably supported in the tubular housing, a handle attached to the barrel forwardly of the housing whereby the latter may be manually rotated relative to the tubular housing, a hopper for particulate material mounted on the tubular housing above an opening defined therein, the breech end of the barrel defining a further opening in the side wall of the barrel whereby on rotation of the barrel there is a continuously variable degree of coincidence between the opening in the breech end of the barrel and the opening in the breech block, and an air supply pipe extending axially through the breech block and the breech end of the barrel to a nozzle adjacent the opening therein and directed towards the nozzle end of the barrel, whereby to eject material falling into the barrel from the hopper.
  • the body of the gun comprises a vertical handle or stock 2, an open ended tubular housing 4 mounted across the top of the stock, and a second tubular housing 6 of smaller diameter extending through the stock parallel to and beneath the first housing.
  • the second housing accommodates a plunger 8 passing through caps 10 and 12 screwed into the ends of the housing.
  • a spring 14 acts between the cap 12 and a flange 16 on the plunger to bias it forwardly (to the left as shown in Figure 1).
  • a trigger 18 is attached to the front end of the plunger, the plunger and trigger being biassed by the spring to assume the position shown. Pressure on the trigger tends to move the plunger rearwardly.
  • a coupling member 2Q is secured to the rear end of the plunger and is releasably clamped by a screw 22 to the rear end of an air pipe 24 which extends axially into the first tubular housing through a cylindrical breech block 26 secured against displacement by a screw 28.
  • the air pipe 24 is threaded at its rear end for attachment to a compressed air line.
  • the air pipe 24 shown in Figure 1 forms part of an interchangeable assembly incorporating a cylindrical barrel 30 received in the front part of the tubular housing.
  • the assembly further comprises a rubber boot 32 forming a seal between the pipe 24 and the barrel 30 whilst permitting limited axial movement of the pipe relative to the barrel, which latter is clamped in place within the tubular housing by a screw 34 acting on flanges 36 formed on a split outer end of the housing 4.
  • the barrel 30 has a nozzle opening 38 within which an orifice plate 40 is retained by a split ring 42.
  • a nozzle 52 screwed into the outer end of the pipe 24 normally closes an orifice in the orifice plate.
  • a felt washer 54 is located between the barrel 30 and the breech block 26.
  • a hopper 44 is secured by a clamp 46 to a funnel shaped opening 48 in the top of the housing 4, which opening coincides with an opening 50 in the top of the barrel so that material such as plaster placed in the hopper can enter the barrel.
  • This assembly Upon removing the barrel assembly comprising the barrel 30 and the pipe 24, this may be replaced by the alternative assembly shown in Figure 2.
  • This assembly also comprises a barrel 60 and a pipe 62, but is installed and operated somewhat differently in order to adapt the gun for the application of solid particulate material to the surface of a previously applied matrix layer to which the particulate material adheres.
  • the pipe 62 passes through an axial orifice in the breech end of the barrel 60, and is secured against withdrawal from it by a rubber 0-ring 64 which also serves as a seal whilst permitting rotation of the barrel relative to the pipe.
  • a rubber 0-ring 64 which also serves as a seal whilst permitting rotation of the barrel relative to the pipe.
  • several peripheral grooves 70 may be provided in the pipe 62 to provide alternative seatings for the 0-ring 64.
  • the rear end of the pipe 62 is clamped by the screw 22 as before, but the O-ring 64 prevents rearward movement of the pipe relative to the barrel 60.
  • the trigger 18 and its associated mechanism is inoperative, except as a means to hold the pipe 22 against movement and thus in turn to hold the breech end of the barrel 60 in the housing 4.
  • the O-ring 64 allows the barrel 60 to be rotated in the housing by means of a hand grip 72 so that the degree of coincidence of the opening 68 with the opening 48 in the housing 4 can be continuously varied from full coincidence to zero coincidence, thus regulating the rate at which particulate material can flow from the hopper 44 into the interior of the barrel 60.
  • the material so flowing is ejected from the nozzle end of the barrel by air emerging from the nozzle 66 when the pipe 62 is connected to a source of compressed air.
  • the groove 70 in which the O-ring 64 is located is selected to provide the best results according to the particle size and density of the material to be sprayed.
  • the gun is held with both hands, one on the stock 2, and the other on the hand grip 72, this second hand steadying and aiming the gun and also regulating the flow of particulate material into the barrel.
  • the structure of the gun is such that it is very easily dismantled and serviced, and the risks of jamming or blockage is minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)

Claims (6)

1. Handpressluftpistole für das Spritzen von gewissen Materialen, die aus den folgenden Elementen besteht: aus einem in der Hand gehaltenen Stiel (2), der ein röhrenförmige Gehäuse (4) trägt, aus einem Rohr (30/60), das sich mit einem Verschluss beendet, der rotierend im röhrenförmigen Gehäuse gehalten wird, aus einem Trichter (44) für gewisse Materiale, der auf das röhrenförmige Gehäuse (4) gesetzt wird, über eine Öffnung, aus einer Luftzufuhrröhre, die axial durch das röhrenförmige Gehäuse und den Verschluss durchgeht, bis einer an die innere Öffnung angrenzenden Düse, und die nach der Düse des Rohres gerichtet ist, um das Material vom Trichter (44) in oder aus dem Rohr (60) auszustossen; es ist durch die Tatsache charakterisiert, dass es weiter aus den folgenden Elementen besteht: aus einem Stiel (72), der auf dem vorderen Teil an das Rohr (60) festgebunden ist, damit das Rohr manuell im Vergleich zum röhrenförmigen Gehäuse gedrent werden kann, aus dem Verschluss des Rohres, der eine zusätzliche Öffnung in der Seite des Rohres (50/68) hat, was es möglich macht, während der Drehung des Rohres (60), ständig einen verstellbaren Übereinstimmungsgrad zwischen der Öffnung im Verschluss des Rohres (50/68) und der Öffnung im Block des Verschlusses (48) zu haben.
2. Eine Handpressluftspritzpistole nach dem Patentanspruch 1, die aus den folgenden Elementen besteht: aus einem Stiel (2), der ein röhrenförmiges Gehäuse unterstützt und, der ein einförmiges zylindrisches Kaliber (4) bildet, das vordere und hintere Teile hat, sowie eine Öffnung (48) in der Wand des Kalibers, neben dem verderen Teil, und eine Ausklinkvorrichtung (18), aus einem Verschlussblock (24), der im hinteren Teil des Kalibers sichergestellt wird, aus am wenigsten einer zylindrischen Montage (30/60), die ein im verderen Teil des Kalibers empfängbares Rohr enthält, das an einer Mündung eine Öffnung (38) hat, sowie in einer Wand des an die Öffnung des röhrenförmigen Gehäuses (48) angrenzenden Rohres (50/68), aus einer Luftröhre (24), die axial im Vergleich zum Rohr (30/60) von einer Verbindung mit seinem vorderen Teil, von einer Kupplung mit einer Pressluftsquelle, durch einen Verschluss des Rohres geht, und die sich mit einer Düse innerhalb des Rohres, mit einer Kupplung der Luftröhre mit dem Rohr, und mit einer Kupplung des hinteren Teiles der Luftröhre mit der Ausklinkvorrichtung (18) beendet wenn das Rohr sich im Kaliber (4) befindet, damit der hintere Teil der Luftröhre im Verschlussblock durch ein Kaliber durchgeht, um die zylindrische Montage im Gehäuse beizubehalten.
3. Eine Pistole nach dem Patentanspruch 2, in der das Kupplungsmittel der Röhre mit dem Rohr es möglich macht, jede axiale Bewegung der Röhre im Vergleich zum Rohr zu verhindern, aber auch eine rotierende Bewegung des Rohres im Vergleich zum röhrenförmigen Gehäuse erlaubt, und in der das Rohr mit einem Stiel versehen ist, für die manuelle Betätigung der rotierenden Bewegung durch die Kontrolle des Übereinstimmungsgrades zwischen der Öffnung im Rohr und der Öffnung im Gehäuse, und durch die Kontrolle der Materiale, die vom Trichter in das Rohr gehen für die Fassing durch die Luft, die die Röhre enthält.
4. Eine Pistole nach dem Patentanspruch 3, in der das Kupplungsmittel der Röhre mit dem Rohr ein O-Ring (64, 70) innerhalb des Rohres ist, der auswahlsweise mit einer der vielen nebenstehenden Rillen der ausseren Oberfläche der Röhre (62) verbunden ist.
5. Eine Pistole nach dem Patentanspruch 2, die wenigstens zwei auswechselbare zylindrische Montagen (30, 60) enthält. In der eine kann das Kupplungsmittel der Röhre mit dem Rohr jede axiale Bewegung der Röhre im Vergleich zum Rohr verhindern, aber auch eine rotierende Bewegung des Rohres im Vergleich zum Gehäuse erlauben. Das Rohr ist mit einem Stiel (72) versehen, für die manuelle Betätigung der rotierenden Bewegung durch die Kontrolle des Übereinstimmungsgrades zwischen der Öffnung im Rohr und der Öffnung im Gehäuse, sowie durch die Kontrolle der Materiale, die vom Trichter in die Röhre gehen, zwecks der Fassung durch die Luft, die die Röhre enthält. In der anderen Montage erlaubt das Kupplungsmittel der Röhre mit dem Rohr eine relative axiale bewegung der Röhre im Vergleich zum Rohr. Eine Offnungsplatte befindet sich auf dem vorderen Teil der Röhre, und die Düse der Röhre hat eine normale Öffnung-und Schliessungslage der Öffnungsplatte. Nach der Kupplung mit dem hinteren Teil der Luftröhre ist die Ausklinkvorrichtung imstande, letztere axial zu bewegen, damit die Düse sich zwischen ihrer normalen Lage und einer Lage innerhalb der Öffnung bewegt. Das Material, das vom Trichter in das Rohr geht kann durch die Luft der Röhre gefasst werden.
6. Eine Pistole nach dem Patentanspruch 2, in der das Kupplungsmittel der Röhre mit dem Rohr eine relative axiale Bewegung der Röhre im Vergleich zum Rohr erlaubt. Die Düse der Röhre hat eine normale Öffnung-und Schliessungslage der Öffnungsplatte und die Ausklinkvorrichtung, nach der Kupplung mit dem hinteren Teil der Röhre, ist imstande, letztere zu bewegen, damit die Düse sich zwischen ihrer normalen Lage und einer Lage innerhalb der Öffnung bewegt. Das Material, das vom Trichter in das Rohr geht kann durch die Luft der Röhre aefasst werden.
EP19850830019 1985-01-29 1985-01-29 Mehrzweckspritzpistole Expired EP0189736B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8585830019T DE3570101D1 (en) 1985-01-29 1985-01-29 Multi-purpose spray gun
EP19850830019 EP0189736B1 (de) 1985-01-29 1985-01-29 Mehrzweckspritzpistole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19850830019 EP0189736B1 (de) 1985-01-29 1985-01-29 Mehrzweckspritzpistole

Publications (2)

Publication Number Publication Date
EP0189736A1 EP0189736A1 (de) 1986-08-06
EP0189736B1 true EP0189736B1 (de) 1989-05-10

Family

ID=8194669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850830019 Expired EP0189736B1 (de) 1985-01-29 1985-01-29 Mehrzweckspritzpistole

Country Status (2)

Country Link
EP (1) EP0189736B1 (de)
DE (1) DE3570101D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111287421B (zh) * 2020-02-08 2021-07-06 中辰鸿泰建设有限公司 带有抹平功能的建筑墙面水泥喷涂机构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1612649U (de) * 1949-10-21 1950-08-31 Alfred Habich Vorrichtung zum aufspritzen eines anstreichstoffs.
DE1733923U (de) * 1956-09-10 1956-11-15 Hans Burlet Spritz pistole zum aufbringen einer koernige beimengungen enthaltenden putz- oder anstrichmasse auf mauerwerk.
DE2239902A1 (de) * 1972-08-14 1974-02-28 Wilhelm Fleissner Spritzpistole fuer spritzmassen
DE8329892U1 (de) * 1983-10-17 1984-01-26 Dracholin GmbH, 7430 Metzingen Druckluftmoertelspritzgeraet

Also Published As

Publication number Publication date
DE3570101D1 (en) 1989-06-15
EP0189736A1 (de) 1986-08-06

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