EP0765720B1 - Pistole für Polyurethanschaum oder dgl. - Google Patents
Pistole für Polyurethanschaum oder dgl. Download PDFInfo
- Publication number
- EP0765720B1 EP0765720B1 EP96111275A EP96111275A EP0765720B1 EP 0765720 B1 EP0765720 B1 EP 0765720B1 EP 96111275 A EP96111275 A EP 96111275A EP 96111275 A EP96111275 A EP 96111275A EP 0765720 B1 EP0765720 B1 EP 0765720B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gun
- trigger
- foam
- housing
- polyurethane foam
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/16—Actuating means
- B65D83/164—Actuators comprising a manually operated valve and being attachable to the aerosol container, e.g. downstream a valve fitted to the container; Actuators associated to container valves with valve seats located outside the aerosol container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
- B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
- B05B9/0894—Gun with a container which, in normal use, is located above the gun
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
Definitions
- the invention relates to a gun for processing polyurethane foam or the like.
- Such pistols are known per se. They are used to introduce polyurethane foam or the like in grooves and grooves, for example between a window frame and a window opening of a wall for sealing the window frame in the Wall.
- the known pistols have a swivel lever as a trigger, which in one Distance to the front of the pistol grip is arranged. This creates the risk that when the trigger is pulled a finger of the hand between the trigger and the Pistol grip can be pinched.
- JP-A 61 192 366 (cf. preamble of claim 1) is a holding and spray handle for a propellant gas Known box that can be placed on the handle.
- Another disadvantage of the known spray and handle is that the can is offset on the handle and thus the wrist a hand holding the can on the spray and handle is heavily loaded.
- the invention has the task of ergonomically a gun of the type mentioned improve and pinching fingers between the trigger and the pistol grip to prevent.
- the side surfaces of the trigger of the pistol according to the invention protrude into a recess into the pistol grip and thereby hold the fingers of a grip around the pistol grip Hand on the side of the trigger, so that it is not between the trigger and the Pistol grip can reach. In this way it is prevented that the fingers when Actuation of the trigger.
- the deduction of the invention Gun with its side faces lower in the recess of the pistol grip sunk, which does not bother because the inside of the pistol grip contains no components and is not otherwise needed.
- An adapter is available for the ergonomically favorable design of the gun a can containing polyurethane foam or the like over the pistol grip and on arranged to the rear on the gun housing. This is the The gun's center of gravity with the polyurethane foam canister attached and the horizontal one Gun in the area above or behind the pistol grip, i.e. close to the Wrist.
- a top heaviness means that the focus of the Gun with attached polyurethane foam can in front of the handle is avoided and noticeably relieves the wrist, which is particularly the case with prolonged use the pistol is ergonomically advantageous.
- An underside of the trigger is preferably also closed and up to the recess of the pistol grip is inserted around a finger also at the bottom the trigger from the gap between the trigger and the pistol grip.
- the trigger can be pivotally mounted inside the gun housing his.
- the trigger is slidable in the gun housing stored.
- the pistol has a sealing element which forms a nozzle needle at its exit point a foam-guiding room on a side facing away from the nozzle of the gun Seals inside the gun.
- This sealing element is on the foam-guiding space sealingly attached and according to the invention has a sealing point, the sealing on Extent of the nozzle needle rests and moves with the nozzle needle when it is actuated. So there is no relative movement between the nozzle needle and the sealing element instead, so that no friction and thus no wear occurs at the sealing point. This extends the life of the sealing element considerably.
- the sealing element can be used as disc-shaped membrane or be designed as a bellows.
- the gun On its back facing away from the nozzle, the gun has an adjusting screw that limited a backward movement of the nozzle needle in the axial direction, by means of which So there is a maximum nozzle opening and thus the maximum amount of foam outlet can be set per time.
- This set screw is in one embodiment of the invention screwed directly into the gun housing and forms a cover for the back of the gun housing. This eliminates the need for a sealing plug, which is attached to the rear of the gun housing and into which the Set screw is screwed in.
- Gun has a gun housing 12 made of plastic injection molding with a one-piece Pistol grip 14.
- a protruding metal or plastic tube used as a nozzle shaft 16, which at its front end has a nozzle 18 for the exit of the polyurethane foam or the like.
- Nozzle shaft 16 allows the polyurethane foam or the like to be difficult to access Apply areas such as throats or grooves.
- Nozzle needle 20 which closes the nozzle 18 in a basic position and in the illustrated retracted position for the foam outlet opens.
- the nozzle shaft 16 is connected to a foam-guiding space 22 inside the gun 12 connected, the nozzle shaft 16 into a rear area of the gun 12th extended.
- the nozzle needle 20 runs through the foam-guiding space 22 and exits at the back.
- the gun 12 has an adapter 24 for one in the drawing Can, not shown, containing polyurethane foam or the like.
- the adapter 24 opens from above into the foam-guiding space 22. It contains a check valve 26, an overflow of pressurized in the can, not shown Foam in the foam-guiding space 22 allows and a backflow of foam prevented from the foam-guiding room 22.
- the adapter 24 is located in the rear part of the pistol 12 above the pistol grip 14 and set something backwards compared to this.
- the adapter 24 is so on the gun 12 arranged that their center of gravity is approximately above that when the can is attached Gun handle 14 or behind it. This arrangement results in an ergonomic design favorable center of gravity of the gun 12 with can, the prerequisite for a fatigue-free Working over a long period of time.
- the gun 12 has a trigger 28 on the front the pistol grip 14.
- the trigger 28 is with laterally projecting guide strips 30 guided to the rear in the gun housing 12. He shows closed, flat side surfaces 32 and a closed bottom 34.
- the side faces 32 and the bottom 34 of the trigger 28 protrude even when the trigger 28 is not actuated (In the drawing, the actuated position is shown) in a recess 36 of the pistol grip 14 in.
- the side surfaces 32 and the bottom 34 prevent fingers from one hand holding the pistol grip 14 between the trigger 28 and the pistol grip 14 arrive and be pinched when pulling the trigger 28.
- An actuating strut 38 which is integral with the trigger 28 is in the interior of the gun housing 12 arranged. It is articulated to an actuating lever 40 which protrudes upward behind the foam-guiding space 22 and over an articulated one Connection 42 is supported inside the housing 12.
- the operating lever 40 has an opening 44 through which the nozzle needle 20 passes.
- the actuating lever 40 has one piece with it, in the area of it Opening 44 on transverse cylinder 46 on which one in the rear end region on the nozzle needle 20 attached collar 48 is present.
- the closing spring 50 presses the nozzle needle 20 when it is not actuated Trigger 28 in its position closing the nozzle 18. At the same time, the closing spring presses 50 the trigger 28 in its basic position via the actuating lever 40.
- the closing spring 50 is supported in the interior of a hollow set screw 52.
- the set screw 52 has approximately the same diameter as the gun housing 12 and is in a thread 54 of the gun housing 12 is screwed in directly.
- the set screw 52 also forms a cap for the rear end of the gun 12.
- the set screw 52 has a pin 55 which is integral with it and which the nozzle needle 20 is aligned and against which the nozzle needle 20 when the trigger is actuated 28 comes across.
- the pin 55 thus limits the retraction path of the nozzle needle 20 and thus the outlet cross section in the nozzle 18.
- a sealing element 56 is attached to the rear of the foam-guiding space 22, that seals the exit point of the nozzle needle 20 from the foam-guiding space 22.
- the sealing element 56 is made of rubber. It has the shape of a bellows.
- the sealing element 56 is over a Radial flange 58 of the foam-guiding space 22, which is the exit point of the Nozzle needle 20 surrounds from the foam-guiding space 22.
- the sealing element 56 On his other side is the sealing element 56 with a sealing bead 60 sealingly on the circumference of the nozzle needle 20 on.
- the nozzle needle 20 When the nozzle needle 20 is actuated, it moves with its sealing bead 60 the nozzle needle 20 so that there is no relative movement between the sealing element 56 and the nozzle needle 20 on the one hand and the flange 58 of the foam-guiding space 22 on the other hand occurs.
- the sealing element 56 is wear-free in this way.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Coating Apparatus (AREA)
- Nozzles (AREA)
- Molding Of Porous Articles (AREA)
Description
Claims (6)
- Pistole zum Ausbringen von Polyurethanschaum oder dgl., wobei ein Abzug (28) der Pistole (10) im wesentlichen ebene und zueinander parallele Seitenflächen (32) aufweist, die in eine Aussparung (36) eines Pistolengriffs (14) ragen, dadurch gekennzeichnet, daß ein Adapter (24) zum Anschließen einer Polyurethanschaumdose so am Pistolengehäuse (12) angeordnet ist, daß sich eine angebrachte Polyurethanschaumdose be horizontal gehaltener Pistole (10) über dem Pistolengriff (14) befindet und gegenüber dem Pistolengriff (14) nach hinten versetzt ist.
- Pistole nach Anspruch 1, dadurch gekennzeichnet, daß eine Unterseite (34) des Abzugs (28) geschlossen ausgebildet ist und in die Aussparung (36) des Pistolengriffs (14) ragt.
- Pistole nach Anspruch 1, dadurch gekennzeichnet, daß der Abzug (28) verschiebbar in einem Pistolengehäuse (12) gelagert ist.
- Pistole nach Anspruch 1, dadurch gekennzeichnet, daß sie ein Dichtelement (56) aufweist, das an einer Austrittsstelle einer Düsennadel (20) aus einem schaumführenden Raum (22) der Pistole (10) angebracht ist und das eine Dichtstelle (60) aufweist, die an der Düsennadel (20) dichtend anliegt und sich bei deren Betätigung mit ihr mitbewegt.
- Pistole nach Anspruch 4, dadurch gekennzeichnet, daß das Dichtelement als Membran oder als Faltenbalg (56) ausgebildet ist.
- Pistole nach Anspruch 4, dadurch gekennzeichnet, daß eine Stellschraube (52), die an einer Rückseite der Pistole (10) angebracht ist und die eine axiale Rückwärtsbewegung der Düsennadel (20) begrenzt, unmittelbar in das Pistolengehäuse (12) eingeschraubt ist und eine Abdeckung der der Düse (18) abgewandten Rückseite des Pistolengehäuses (12) bildet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29515552U DE29515552U1 (de) | 1995-09-29 | 1995-09-29 | Pistole für Polyurethanschaum o.dgl. |
| DE29515552U | 1995-09-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0765720A2 EP0765720A2 (de) | 1997-04-02 |
| EP0765720A3 EP0765720A3 (de) | 1998-01-07 |
| EP0765720B1 true EP0765720B1 (de) | 2001-10-31 |
Family
ID=8013586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96111275A Expired - Lifetime EP0765720B1 (de) | 1995-09-29 | 1996-07-12 | Pistole für Polyurethanschaum oder dgl. |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0765720B1 (de) |
| JP (1) | JPH09108607A (de) |
| AT (1) | ATE207795T1 (de) |
| BR (1) | BR9603903A (de) |
| DE (2) | DE29515552U1 (de) |
| ES (1) | ES2165945T3 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69906479T2 (de) * | 1999-04-23 | 2004-03-18 | Clive Addison | Pistole für Urethanschäume oder dergleichen |
| AU1186400A (en) * | 1999-10-08 | 2001-04-23 | Ham Il Co., Ltd | Gun for one-liquid polyurethane foam injection |
| DE102010009522A1 (de) | 2010-02-26 | 2011-09-01 | Thomas Irion | Pistole zum Ausbringen eines fließfähigen Materials |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4126321A (en) * | 1977-11-03 | 1978-11-21 | Nordson Corporation | Packingless bellows seal |
| DE3031938A1 (de) * | 1980-08-25 | 1982-04-08 | Hilti AG, 9494 Schaan | Geraet zum abgeben von ein- oder mehrkomponentenmassen |
| JPS61192366A (ja) * | 1985-02-19 | 1986-08-26 | Osaka Eyazoole Kogyo Kk | エアゾ−ル製品 |
| DE3710395A1 (de) * | 1987-03-28 | 1988-10-13 | Bruno Jesswein | Spritzpistole fuer schaumstoff |
| GB2239929A (en) * | 1990-01-09 | 1991-07-17 | Grace W R & Co | Improved seal |
| WO1993003860A1 (en) * | 1991-08-27 | 1993-03-04 | Enzacor Australia Pty. Ltd. | Dose dispensing gun |
| US5271537A (en) * | 1992-08-14 | 1993-12-21 | Johnson Charles W | Foam dispensing device |
| US5615804A (en) * | 1994-06-23 | 1997-04-01 | Insta-Foam Products, Inc. | Gun for dispensing fluent sealants or the like |
| DE19503495A1 (de) * | 1995-02-03 | 1996-08-08 | Amv Autom Montage Vertrieb Fa | Spritzpistole mit ansetzbaren Düsenelementen |
-
1995
- 1995-09-29 DE DE29515552U patent/DE29515552U1/de not_active Expired - Lifetime
-
1996
- 1996-07-12 ES ES96111275T patent/ES2165945T3/es not_active Expired - Lifetime
- 1996-07-12 DE DE59608056T patent/DE59608056D1/de not_active Expired - Lifetime
- 1996-07-12 EP EP96111275A patent/EP0765720B1/de not_active Expired - Lifetime
- 1996-07-12 AT AT96111275T patent/ATE207795T1/de not_active IP Right Cessation
- 1996-09-20 JP JP8250332A patent/JPH09108607A/ja active Pending
- 1996-09-26 BR BR9603903A patent/BR9603903A/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE207795T1 (de) | 2001-11-15 |
| JPH09108607A (ja) | 1997-04-28 |
| ES2165945T3 (es) | 2002-04-01 |
| BR9603903A (pt) | 1998-06-09 |
| EP0765720A2 (de) | 1997-04-02 |
| EP0765720A3 (de) | 1998-01-07 |
| DE59608056D1 (de) | 2001-12-06 |
| DE29515552U1 (de) | 1997-02-06 |
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