WO2010114374A1 - Spray gun - Google Patents
Spray gun Download PDFInfo
- Publication number
- WO2010114374A1 WO2010114374A1 PCT/NL2010/050167 NL2010050167W WO2010114374A1 WO 2010114374 A1 WO2010114374 A1 WO 2010114374A1 NL 2010050167 W NL2010050167 W NL 2010050167W WO 2010114374 A1 WO2010114374 A1 WO 2010114374A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spray gun
- material channel
- spray
- housing
- holes
- Prior art date
Links
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
- B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
- B05B7/2424—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together downstream of the container before discharge
- B05B7/2427—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together downstream of the container before discharge and a secondary stream of atomising fluid being brought together in the container or putting the carried liquid under pressure in the 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
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
-
- 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
- B05C17/015—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 pneumatically or hydraulically actuated piston or the like
-
- 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
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
Definitions
- the invention relates to a spray gun for applying a layer of viscous material to a surface, comprising a housing for receiving a packaging provided with the material, the housing being provided with a spray nozzle, wherein the spray gun is adapted to dispense the material from the spray nozzle under fluid pressure.
- Such a spray gun is known in practice for applying glue, and is sometimes referred to as a mastic gun.
- the known spray gun is easy to operate, even for DIY users.
- the known spray gun makes use of disposable packages with smalt quantities of material.
- the known spray gun is hereby highly suitable for processing small surfaces and can even be applied in already furnished spaces.
- the known spray gun is however only suitable for applying glue.
- Professional spraying equipment is available for the purpose of applying materials other than glue, and particularly materials which have to be applied with a structure, such as ornamental plaster. Professional spraying equipment generally has the drawback that it is difficult to operate and is not therefore suitable for use by DIY users.
- An example of such professional spraying equipment for applying material with structure is a projection plaster machine.
- the known projection plaster machine is not suitable for processing small surfaces, mainly because of the fact that it uses a great deal of material since the hose of the machine must always be fully filled for proper operation. Nor can the known projection plaster machine be applied in already furnished spaces.
- the invention has for its object to develop a spray gun of the type stated in the preamble which is suitable for applying many types of material, and in particular materials which have to be applied with structure.
- the spray gun is further provided with a material channel for feed of the material which extends from the housing in the direction of the dispensing end of the spray nozzle, wherein the material channel comprises a part with a narrower diameter, wherein the packaging is a flexible packaging which can be folded together under fluid pressure for the purpose of dispensing the viscous material.
- Applying such a flexible packaging has the important advantages of saving material, and as a result sparing the environment and saving costs. This is because the flexible packaging comprises little material which can be used wholly or even partially as desired.
- a spray gun according to the preamble of claim 1 is known from the Netherlands patent application 9200318.
- the known spray gun has the drawback that it applies material in a sprayer pattern to the surface with a thickness decreasing from the outside toward the inside.
- the invention has for its object to provide a solution herefor.
- the spray gun according to the invention has the feature that the outer end of the material channel forms the dispensing end of the nozzle and that the spray gun is adapted for feed of the fluid to the material channel.
- the spray gun according to the invention is hereby suitable for the purpose of applying many types of material, varying from liquid material such as paint to pasty material such as ornamental plaster.
- the spray gun according to the invention is easy to handle, can be used anywhere and enables "clean" application of the material, i.e. without undesirable spread of the material.
- the spray nozzle comprises three or more holes for feed of the fluid to the material channel.
- the holes are preferably arranged eccentrically round the material channel for feed of the fluid to the material channel.
- the material channel part of narrower diameter is situated between the housing and the holes in the spray nozzle. The narrowing in the material channel makes it possible in effective manner to apply a flexible packaging which retains its shape when work stops.
- the holes are connected via passages to the material channel, these passages taking a curved form.
- the outer ends of the passages preferably make contact with the periphery of the material channel at a predetermined angle, this angle being less than ninety degrees. As a result the fluid flows partially along the walls of the material channel, whereby a swirling movement is created in the material.
- Figure 1 is a schematic view of a preferred embodiment of the spray gun according to the invention.
- Figure 2 is a partially exploded schematic view of the spray gun of figure 1;
- Figure 3 shows a section of a part of the spray gun of figure 1 ;
- Figure 4A is a schematic view of a component of the spray pistol of figure 1 ;
- Figure 4B shows a cross-section through the component of the spray pistol of figure 4A.
- Figure 1 shows a schematic view of a preferred embodiment of spray gun 1 according to the invention
- Figure 2 shows a partially exploded view of spray gun 1
- Spray gun 1 comprises a housing 2 provided on the front side with a spray nozzle 4
- the housing is partially hollow for the purpose of receiving packaging 3 provided with the material to be applied
- Packaging 3 is preferably a flexible packaging
- An example of a suitable flexible packaging is a sausage-shaped material container 3
- the material container can be folded together under fluid pressure in order to dispense the material
- the material container is provided with a casing for once-only use which is preferably recyclable, such as aluminium
- the material container can comprise diverse types of viscous material, varying from liquid material such as paint to pasty matenal such as ornamental plaster
- Spray gun 1 is adapted to dispense the material from spray nozzle 4 under fluid pressure, for tnstance air pressure Spray gun 1 is provided with a handle 12 for operation of a piston 22 in housing 2 for the purpose of emptying packaging 3 in the direction of spray nozzle 4 Piston 22 is arranged guidably along the inner side of housing 2 and is displaceable under fluid pressure
- connection 16 is provided for connection to the air supply, for instance a compressor (not shown)
- Connection 16 is preferably a rapid-action coupling Hose 26 connects connection 16 to socket 46 on spray nozzle 4
- Operating means 36A and 36B regulate the amount of air supply Valve 36A is for instance a ball valve for a rough setting Valve 36B is for instance a needle valve for a fine adjustment
- Valve 36A is for instance a ball valve for a rough setting
- Valve 36B is for instance a needle valve for a fine adjustment
- Diverse air pressure systems are known in practice which are suitable for this purpose
- FIG 3 shows a section of spray nozzle 4 of spray gun 1 Shown here is a material channel 5 which connects the inte ⁇ or of housing 2 to the dispensing end of spray nozzle 4
- Material channel 5 extends through a first connecting piece 41 and a second connecting piece 42 which lie mutually in line, and through nose part 44 which lies in line with second connecting piece 42 and is connected thereto by means of a connecting ring 43
- the first connecting part 41 , second connecting part 42, connecting ⁇ ng 43 and nose part 44 form spray nozzle 4
- Figure 4A shows a schematic view of nose part 44
- Figure 4B shows a cross-section of nose part 44
- Spray nozzle 4 comprises three holes 14 for feed of the fluid to material channel 5 Holes 14 are arranged eccentrically round material channel 5 in nose part 44 The holes are connected via passages to material channel 5
- the passages take a curved form
- the outer ends of these passages make contact with the periphery of the material channel at a predetermined angle This angle is preferably less than 90 degrees
- Material channel 5 comprises a part 15 of a narrower diameter Part 15 extends between housing 2 and holes 14 in spray nozzle 4
- the part of material channel 5 running through the first connecting piece 41 takes a narrowed form compared to the part of matenal channel 5 running through the second connecting piece 42
- the extent of narrowing depends on the viscosity of the matenal
- the purpose of the narrowing is to create a ventu ⁇ effect
- the narrowing in the material channel ensures in practice that no backflow occurs when work is stopped
- the momentary form of flexible packaging 3 is hereby retained It is noted for the sake of completeness that the invention is of course not limited to the descnbed and shown preferred embodiment, but extends to any embodiment falling within the scope of protection as defined in the claims and as seen in the light of the foregoing description and accompanying drawings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention relates to a spray gun (1) for applying a layer of viscous material to a surface. The spray gun (1) comprises a housing (2) for receiving a packaging (3) provided with the material. The housing (2) is provided with a spray nozzle (4). The spray gun (1) is adapted to dispense the material from the spray nozzle (4) under fluid pressure. The spray nozzle (4) is provided with a material channel for feed of the material which extends from the housing up to the dispensing end of the spray nozzle. The spray gun (1) is adapted for feed of the fluid to the material channel such that the material can be applied uniformly to the surface.
Description
SPRAY GUN
The invention relates to a spray gun for applying a layer of viscous material to a surface, comprising a housing for receiving a packaging provided with the material, the housing being provided with a spray nozzle, wherein the spray gun is adapted to dispense the material from the spray nozzle under fluid pressure.
Such a spray gun is known in practice for applying glue, and is sometimes referred to as a mastic gun.
The known spray gun is easy to operate, even for DIY users. The known spray gun makes use of disposable packages with smalt quantities of material. The known spray gun is hereby highly suitable for processing small surfaces and can even be applied in already furnished spaces. The known spray gun is however only suitable for applying glue.
Professional spraying equipment is available for the purpose of applying materials other than glue, and particularly materials which have to be applied with a structure, such as ornamental plaster. Professional spraying equipment generally has the drawback that it is difficult to operate and is not therefore suitable for use by DIY users. An example of such professional spraying equipment for applying material with structure is a projection plaster machine. The known projection plaster machine is not suitable for processing small surfaces, mainly because of the fact that it uses a great deal of material since the hose of the machine must always be fully filled for proper operation. Nor can the known projection plaster machine be applied in already furnished spaces.
The invention has for its object to develop a spray gun of the type stated in the preamble which is suitable for applying many types of material, and in particular materials which have to be applied with structure. According to the invention the spray gun is further provided with a material channel for feed of the material which extends from the housing in the direction of the dispensing end of the spray nozzle, wherein the material channel comprises a part with a narrower diameter, wherein the packaging is a flexible packaging which can be folded together under fluid pressure for the purpose of dispensing the viscous material. Applying such a flexible packaging has the important advantages of saving material, and as a result sparing the environment and saving costs. This is because the flexible packaging comprises little material which can be used wholly or even partially as desired. The flexible packaging can in addition be easily replaced, for instance in order to change colour or type of material. A spray gun according to the preamble of claim 1 is known from the Netherlands patent application 9200318.
The known spray gun has the drawback that it applies material in a sprayer pattern to the surface with a thickness decreasing from the outside toward the inside. The invention has for its object to provide a solution herefor.
The spray gun according to the invention has the feature that the outer end of the material channel forms the dispensing end of the nozzle and that the spray gun is adapted for feed of the fluid to the material channel.
Mixing of fluid and material takes place in the material channel of the spray gun according to the invention prior to dispensing such that the material can be applied to the surface in substantially uniform distribution. The spray gun according to the invention is hereby suitable for the purpose of applying many types of material, varying from liquid material such as paint to pasty material such as ornamental plaster. The spray gun according to the invention is easy to handle, can be used anywhere and enables "clean" application of the material, i.e. without undesirable spread of the material.
In a first practical preferred embodiment of the spray gun according to the invention the spray nozzle comprises three or more holes for feed of the fluid to the material channel.
The choice of three or four holes makes it possible to achieve a good uniform distribution of the material over the surface for processing.
The holes are preferably arranged eccentrically round the material channel for feed of the fluid to the material channel. In a further preferred embodiment of the spray gun according to the invention the material channel part of narrower diameter is situated between the housing and the holes in the spray nozzle. The narrowing in the material channel makes it possible in effective manner to apply a flexible packaging which retains its shape when work stops.
According to a further advantageous preferred embodiment, the holes are connected via passages to the material channel, these passages taking a curved form. The outer ends of the passages preferably make contact with the periphery of the material channel at a predetermined angle, this angle being less than ninety degrees. As a result the fluid flows partially along the walls of the material channel, whereby a swirling movement is created in the material.
The invention will be elucidated with reference to the accompanying figures, in which
Figure 1 is a schematic view of a preferred embodiment of the spray gun according to the invention;
Figure 2 is a partially exploded schematic view of the spray gun of figure 1; Figure 3 shows a section of a part of the spray gun of figure 1 ;
Figure 4A is a schematic view of a component of the spray pistol of figure 1 ; and
Figure 4B shows a cross-section through the component of the spray pistol of figure 4A.
Figure 1 shows a schematic view of a preferred embodiment of spray gun 1 according to the invention Figure 2 shows a partially exploded view of spray gun 1
Spray gun 1 comprises a housing 2 provided on the front side with a spray nozzle 4 The housing is partially hollow for the purpose of receiving packaging 3 provided with the material to be applied Packaging 3 is preferably a flexible packaging An example of a suitable flexible packaging is a sausage-shaped material container 3 The material container can be folded together under fluid pressure in order to dispense the material The material container is provided with a casing for once-only use which is preferably recyclable, such as aluminium The material container can comprise diverse types of viscous material, varying from liquid material such as paint to pasty matenal such as ornamental plaster
Spray gun 1 is adapted to dispense the material from spray nozzle 4 under fluid pressure, for tnstance air pressure Spray gun 1 is provided with a handle 12 for operation of a piston 22 in housing 2 for the purpose of emptying packaging 3 in the direction of spray nozzle 4 Piston 22 is arranged guidably along the inner side of housing 2 and is displaceable under fluid pressure
The most important components of an air pressure system 6 are shown by way of illustration A connection 16 is provided for connection to the air supply, for instance a compressor (not shown) Connection 16 is preferably a rapid-action coupling Hose 26 connects connection 16 to socket 46 on spray nozzle 4 Operating means 36A and 36B regulate the amount of air supply Valve 36A is for instance a ball valve for a rough setting Valve 36B is for instance a needle valve for a fine adjustment Diverse air pressure systems are known in practice which are suitable for this purpose
Figure 3 shows a section of spray nozzle 4 of spray gun 1 Shown here is a material channel 5 which connects the inteπor of housing 2 to the dispensing end of spray nozzle 4 Material channel 5 extends through a first connecting piece 41 and a second connecting piece 42 which lie mutually in line, and through nose part 44 which lies in line with second connecting piece 42 and is connected thereto by means of a connecting ring 43 The first connecting part 41 , second connecting part 42, connecting πng 43 and nose part 44 form spray nozzle 4 Figure 4A shows a schematic view of nose part 44 Figure 4B shows a cross-section of nose part 44 Spray nozzle 4 comprises three holes 14 for feed of the fluid to material channel 5 Holes 14 are arranged eccentrically round material channel 5 in nose part 44 The holes are connected via passages to material channel 5 The passages take a curved form The outer ends of these passages make contact with the periphery of the material channel at a predetermined angle This angle is preferably less than 90 degrees The fluid flows partially along the wall of the material channel A swirling movement is created in the material
During use the air pressure system is activated by operating the handle 12 The material is pressed under pressure out of packaging 3 and through matenal channel 5 by means of piston 22 The fluid also flows by means of components 26, 36, 46 via holes 14 in nose part 44 and ensures that dunng dispensing from spray nozzle 4 the matenal undergoes a movement such that the matenal is applied uniformly to a surface This movement can best be descnbed as a swirling movement
Material channel 5 comprises a part 15 of a narrower diameter Part 15 extends between housing 2 and holes 14 in spray nozzle 4 In the shown preferred embodiment the part of material channel 5 running through the first connecting piece 41 takes a narrowed form compared to the part of matenal channel 5 running through the second connecting piece 42 The extent of narrowing depends on the viscosity of the matenal The purpose of the narrowing is to create a ventuπ effect The narrowing in the material channel ensures in practice that no backflow occurs when work is stopped The momentary form of flexible packaging 3 is hereby retained It is noted for the sake of completeness that the invention is of course not limited to the descnbed and shown preferred embodiment, but extends to any embodiment falling within the scope of protection as defined in the claims and as seen in the light of the foregoing description and accompanying drawings
Claims
CUVIMS
1 Spray gun for applying a layer of viscous material to a surface, comprising a housing for receiving a packaging provided with the material, the housing being provided with a spray nozzle which is provided with a matenal channel for feed of the material which extends from the housing in the direction of the dispensing end of the spray nozzle, wherein the material channel comprises a part with a narrower diameter, wherein the spray gun is adapted to dispense the material from the spray nozzle under fluid pressure, wherein the packaging is a flexible packaging which can be folded together under fluid pressure for the purpose of dispensing the viscous matenal, characterized in that the outer end of the material channel forms the dispensing end of the nozzle and that the spray gun is adapted for feed of the fluid to the material channel
2. Spray gun as claimed in claim 1, wherein the spray nozzle comprises three or more holes for feed of the fluid to the material channel
3. Spray gun as claimed in claim 2, wherein the holes are arranged eccentrically round the material channel.
4 Spray gun as claimed in claim 2, wherein the holes are arranged close to the outer end of the material channel.
5. Spray gun as claimed in any of the foregoing claims, wherein the material channel part of narrower diameter is situated between the housing and the holes in the spray nozzle
6. Spray gun as claimed in any of the foregoing claims 2-5, wherein the holes are connected via passages to the material channel, these passages taking a curved form
7. Spray gun as claimed in claim 6, wherein the outer ends of the passages make contact with the peripheral wall of the material channel at a predetermined angle, this angle being less than 90 degrees.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2002688A NL2002688C2 (en) | 2009-03-31 | 2009-03-31 | SPRAY GUN. |
| NL2002688 | 2009-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010114374A1 true WO2010114374A1 (en) | 2010-10-07 |
Family
ID=41268313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/NL2010/050167 WO2010114374A1 (en) | 2009-03-31 | 2010-03-31 | Spray gun |
Country Status (2)
| Country | Link |
|---|---|
| NL (1) | NL2002688C2 (en) |
| WO (1) | WO2010114374A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174068A (en) * | 1978-11-07 | 1979-11-13 | Rudolph Robert L | Gun having disposable cartridge |
| JPH0691207A (en) * | 1992-09-11 | 1994-04-05 | Nippon Shiika Kk | Viscous material atomization device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9200318A (en) * | 1992-02-20 | 1993-09-16 | Wilhelmus Adrianus Theresia Ke | Apparatus for dispensing viscous material |
-
2009
- 2009-03-31 NL NL2002688A patent/NL2002688C2/en not_active IP Right Cessation
-
2010
- 2010-03-31 WO PCT/NL2010/050167 patent/WO2010114374A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174068A (en) * | 1978-11-07 | 1979-11-13 | Rudolph Robert L | Gun having disposable cartridge |
| JPH0691207A (en) * | 1992-09-11 | 1994-04-05 | Nippon Shiika Kk | Viscous material atomization device |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2002688C2 (en) | 2010-10-04 |
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