EP1084809A1 - Delivery gun for delivering polyurethane mixed with a forming gas - Google Patents
Delivery gun for delivering polyurethane mixed with a forming gas Download PDFInfo
- Publication number
- EP1084809A1 EP1084809A1 EP00119259A EP00119259A EP1084809A1 EP 1084809 A1 EP1084809 A1 EP 1084809A1 EP 00119259 A EP00119259 A EP 00119259A EP 00119259 A EP00119259 A EP 00119259A EP 1084809 A1 EP1084809 A1 EP 1084809A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- delivery
- gun
- end portion
- rotary
- 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.)
- Granted
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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
- B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
- B65D83/207—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
Definitions
- the present invention relates to a delivery gun, which has been specifically designed for delivering polyurethane to which a propelling and foaming gas has been added.
- a delivery gun is conventionally used, which allows to deliver or meter the polyurethane material held in a holding vessel together with the foaming gas.
- the product, exiting the gun in the form of a foam, can be used and applied in an adjustable manner.
- Prior polyurethane delivery guns comprise a gun body, to which a polyurethane bottle can be coupled, which communicated with the inside of a tubular element perforated at its free end portions and therethrough a sliding rod is caused to pass.
- the mentioned rod is provided with a conical end portion, adapted to plug or shut-off the perforated end portion, also conical, of the mentioned tubular element.
- the rod displacement amount controls the size variation of the annular opening and, accordingly, the delivered polyurethane amount.
- an operator can, by operating a trigger lever, coupled to the rod, easily adjust the delivered or metered polyurethane amount.
- the delivery gun comprises a bottom element which can be screw coupled to the body of the gun, thereby, by screwing on or off said bottom element, the position of the latter with respect to the gun body can be easily adjusted, thereby also adjusting the limit of stroke position of the rod.
- the aim of the present invention is to provide such a delivery or metering gun, allowing to overcome the above mentioned drawbacks.
- a main object of the present invention is to provide such a delivery gun including an improved system for adjusting the limit of stroke position of the rod thereof.
- Another object of the present invention is to provide such a delivery or metering gun, in which the bottom element is not screw engaged.
- a delivery gun specifically designed for delivering foamed polyurethane, comprising a gun body, including a delivery tubular element, communicating with a material to be delivered vessel, and adapted to be coupled to said body, a sliding rod longitudinally sliding in said tubular element and having a conical end portion for engaging a delivery opening, said rod being adapted to disengage said opening during a backward movement thereof, the stroke of said rod being limited by end of stroke limit means and being characterized in that said end of stroke limit means comprise a rotary element, coupled to said body, and adapted to be driven from the outside, said rotary element being kinematically coupled to an abutment element, slidable with respect to said body, due to the rotary movement of said rotary element, and adapted to define the rear limit of stroke position of said rod.
- the delivery gun comprises a gun body 2 provided with a fitting 3 for a vessel 4 adapted to hold therein a material to be delivered or metered, for example a polyurethane and foaming gas bottle.
- an extension element 5 can be coupled, said extension element comprising a tubular element including a free end portion with a delivery opening 6 having a conical longitudinal cross-section.
- the inner cavity of the tubular element 5 is coupled to the vessel 4 through a duct 8, thereby the material to be delivered can pass to the delivery opening 6 to be metered or delivered.
- a delivery rod 7 is arranged in the cavity of the tubular element 5 and can longitudinally slide therein.
- said rod 7 has a conical front end portion, for shutting-off the delivery opening 6 in its closure position and, by backward sliding, being adapted to adjustably open the delivery opening 6, due to the tapering or conicity of said rod.
- the back sliding of the rod 7 is controlled by an operating or driving lever 9, coupled to the gun body 2 and which can be manually operated by the user, gripping the delivery gun by a gun grip portion 10.
- the rear end portion 11 of the rod 7 is adapted to engage in a blind hole 13 of an abutment element 12, which can slide in the gun body 2.
- An annular recess 14 of the abutment element 12 is adapted to receive therein an end portion of a coil spring 15 coaxial with the rod 7 and having the other end portion thereof abutting against a flange 16 of the rod 7.
- the abutment element 12 can slide in the gun body 2, but it cannot turn about its longitudinal axis, through guides 17 formed in the gun body 2 and is provided with a threaded portion 18, adapted to engage a ring-nut 20 formed in a rotary element 19.
- the latter comprises a bottom element, on the outside of the gun body 2, and which can be turned or rotated by the operator in order to axially drive or displace the abutment element 12 thereby adjusting the end of stroke position of the rod 7.
- the rotary element 19, in particular, can be snap assembled on the gun body 2, to be able of rotating, without disengaging or longitudinally moving.
- the operation of the delivery gun according to the present invention would be very simple.
- the maximum amount of product which can be delivered or metered will depend on the end of stroke position of the rod 7, which can be easily adjusted by turning the rotary element 19.
- the latter can comprise signalling elements for signalling the end of stroke or limit position, such as notches or other indicating marks, allowing a user to easily detect the position of the adjusting element.
- the invention fully achieves the intended aim and objects, since the subject delivery gun can be easily adjusted by a bottom element for adjusting the maximum delivered amount, said bottom element turning with respect to the gun body, without threading on or off.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Coating Apparatus (AREA)
Abstract
Description
- The present invention relates to a delivery gun, which has been specifically designed for delivering polyurethane to which a propelling and foaming gas has been added.
- As is known, for applying foamed polyurethane, a delivery gun is conventionally used, which allows to deliver or meter the polyurethane material held in a holding vessel together with the foaming gas.
- The product, exiting the gun in the form of a foam, can be used and applied in an adjustable manner.
- Prior polyurethane delivery guns comprise a gun body, to which a polyurethane bottle can be coupled, which communicated with the inside of a tubular element perforated at its free end portions and therethrough a sliding rod is caused to pass.
- The mentioned rod is provided with a conical end portion, adapted to plug or shut-off the perforated end portion, also conical, of the mentioned tubular element.
- By sliding the rod, an annular opening at the end portion of the tubular element is disengaged, thereby allowing the polyurethane material and foaming agent held in the tubular element and coming from the bottle to exit.
- The rod displacement amount controls the size variation of the annular opening and, accordingly, the delivered polyurethane amount.
- Thus, an operator can, by operating a trigger lever, coupled to the rod, easily adjust the delivered or metered polyurethane amount.
- In order to provide a limit of stroke feature, during the opening movement, of the rod, the delivery gun comprises a bottom element which can be screw coupled to the body of the gun, thereby, by screwing on or off said bottom element, the position of the latter with respect to the gun body can be easily adjusted, thereby also adjusting the limit of stroke position of the rod.
- The above disclosed adjustment bottom element construction is affected by some drawbacks, of constructional nature, and, most importantly, can cause the bottom element to be accidentally disengaged during the gun use.
- Accordingly, the aim of the present invention is to provide such a delivery or metering gun, allowing to overcome the above mentioned drawbacks.
- Within the scope of the above mentioned aim, a main object of the present invention is to provide such a delivery gun including an improved system for adjusting the limit of stroke position of the rod thereof.
- Another object of the present invention is to provide such a delivery or metering gun, in which the bottom element is not screw engaged.
- According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a delivery gun, specifically designed for delivering foamed polyurethane, comprising a gun body, including a delivery tubular element, communicating with a material to be delivered vessel, and adapted to be coupled to said body, a sliding rod longitudinally sliding in said tubular element and having a conical end portion for engaging a delivery opening, said rod being adapted to disengage said opening during a backward movement thereof, the stroke of said rod being limited by end of stroke limit means and being characterized in that said end of stroke limit means comprise a rotary element, coupled to said body, and adapted to be driven from the outside, said rotary element being kinematically coupled to an abutment element, slidable with respect to said body, due to the rotary movement of said rotary element, and adapted to define the rear limit of stroke position of said rod.
- Further characteristics and advantages of the present invention will become more apparent hereinafter from the following detailed disclosure of the delivery gun according to the invention, which is illustrated, by way of an indicative, but not limitative, example, in the accompanying drawings, where:
- Figure 1 is a cross-sectioned side view of a delivery gun according to the invention;
- Figure 2 is a partial enlarged and cross sectioned elevation view of that same delivery gun shown in Figure 1;
- Figure 3 is an enlarged detail front view of the abutment element;
- Figure 4 is an enlarged detail side view of the abutment element;
- Figure 5 is a further enlarged detail side view of the bottom element-abutment element-end rod assembly.
-
- With reference to the number references of the above mentioned figures, the delivery gun according to the present invention, generally indicated by the
reference number 1, comprises agun body 2 provided with afitting 3 for avessel 4 adapted to hold therein a material to be delivered or metered, for example a polyurethane and foaming gas bottle. - To the
body 2 anextension element 5 can be coupled, said extension element comprising a tubular element including a free end portion with a delivery opening 6 having a conical longitudinal cross-section. - The inner cavity of the
tubular element 5 is coupled to thevessel 4 through aduct 8, thereby the material to be delivered can pass to the delivery opening 6 to be metered or delivered. - A
delivery rod 7 is arranged in the cavity of thetubular element 5 and can longitudinally slide therein. - More specifically, said
rod 7 has a conical front end portion, for shutting-off the delivery opening 6 in its closure position and, by backward sliding, being adapted to adjustably open the delivery opening 6, due to the tapering or conicity of said rod. - The back sliding of the
rod 7 is controlled by an operating or driving lever 9, coupled to thegun body 2 and which can be manually operated by the user, gripping the delivery gun by agun grip portion 10. - The
rear end portion 11 of therod 7 is adapted to engage in ablind hole 13 of anabutment element 12, which can slide in thegun body 2. - An
annular recess 14 of theabutment element 12 is adapted to receive therein an end portion of acoil spring 15 coaxial with therod 7 and having the other end portion thereof abutting against a flange 16 of therod 7. - Thus, the
coil spring 15 will drive therod 7 to be closure position thereof. - The
abutment element 12 can slide in thegun body 2, but it cannot turn about its longitudinal axis, throughguides 17 formed in thegun body 2 and is provided with a threadedportion 18, adapted to engage a ring-nut 20 formed in arotary element 19. - The latter comprises a bottom element, on the outside of the
gun body 2, and which can be turned or rotated by the operator in order to axially drive or displace theabutment element 12 thereby adjusting the end of stroke position of therod 7. - The
rotary element 19, in particular, can be snap assembled on thegun body 2, to be able of rotating, without disengaging or longitudinally moving. - The operation of the delivery gun according to the present invention would be very simple.
- Actually, it would be sufficient to apply a polyurethane bottle to the
fitting 3, in a per se known manner, and operate the lever 9 to deliver the desired product amount, by adjusting the displacement of the rod by operating said lever. - The maximum amount of product which can be delivered or metered will depend on the end of stroke position of the
rod 7, which can be easily adjusted by turning therotary element 19. - The latter can comprise signalling elements for signalling the end of stroke or limit position, such as notches or other indicating marks, allowing a user to easily detect the position of the adjusting element.
- Thus, it should be apparent that the invention fully achieves the intended aim and objects, since the subject delivery gun can be easily adjusted by a bottom element for adjusting the maximum delivered amount, said bottom element turning with respect to the gun body, without threading on or off.
- Thus, the mentioned bottom element cannot be accidentally disengaged or unthreaded.
- In practicing the invention, the used materials and size can be varied, according to requirements and the status of the art.
Claims (5)
- A delivery gun, specifically designed for delivering foamed polyurethane, comprising a gun body, including a delivery tubular element, communicating with a material to be delivered vessel, and adapted to be coupled to said body, a sliding rod longitudinally sliding in said tubular element and having a conical end portion for engaging a delivery opening, said rod being adapted to disengage said opening during a backward movement thereof, the stroke of said rod being limited by end of stroke limit means and being characterized in that said end of stroke limit means comprise a rotary element, coupled to said body, and adapted to be driven from the outside, said rotary element being kinematically coupled to an abutment element, slidable with respect to said body, due to the rotary movement of said rotary element, and adapted to define the rear limit of stroke position of said rod.
- A delivery gun according to Claim 1, characterized in that said rod is provided with a rear end portion adapted to engage in a blind hole of said abutment element, and that said abutment element comprises an annular recess, for housing therein an end portion of a coil spring, coaxial with said rod, the other end portion of said coil spring abutting against a flange of said rod, thereby to cause said rod to be arranged at a closure position thereof.
- A delivery gun according to Claim 1 or 2, characterized in that said abutment element is slidably arranged in said gun body, and cannot turn about its longitudinal axis, by guides formed on said gun body, and being provided with a threaded portion for engaging a ring-nut formed in the rotary element.
- A delivery gun according to one or more of the preceding claims, characterized in that said rotary element comprises signalling elements for signalling or detecting the position of said abutment element.
- A delivery gun according to one or more of the preceding claims, characterized in that said delivery gun comprises one or more of the disclosed features, and substantially as broadly disclosed and/or illustrated in the preceding disclosure and in the figures of the accompanying drawings enclosed in the subject Utility Model Application.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999MI000573U IT247533Y1 (en) | 1999-09-15 | 1999-09-15 | SPRAY GUN PARTICULARLY DESIGNED FOR THE DISPENSING OF POLYUR-ETHANE MIXED WITH AN EXPANDING GAS |
ITMI990573U | 1999-09-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1084809A1 true EP1084809A1 (en) | 2001-03-21 |
EP1084809B1 EP1084809B1 (en) | 2003-06-04 |
Family
ID=11382372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00119259A Expired - Lifetime EP1084809B1 (en) | 1999-09-15 | 2000-09-06 | Delivery gun for delivering polyurethane mixed with a forming gas |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1084809B1 (en) |
AT (1) | ATE242095T1 (en) |
DE (1) | DE60003130D1 (en) |
IT (1) | IT247533Y1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010078817A1 (en) * | 2009-01-06 | 2010-07-15 | Zheng Ying | Foam gun with flow regulating device |
CN102029247A (en) * | 2009-10-08 | 2011-04-27 | 王良 | Foaming tool with safety control mechanism |
CN102327850A (en) * | 2011-04-28 | 2012-01-25 | 梁海军 | Foaming gun and assembly method thereof |
WO2014118298A1 (en) * | 2013-02-01 | 2014-08-07 | Altachem Nv | Device for dispensing pressurized fluids |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3518492A1 (en) * | 1985-05-23 | 1986-11-27 | Kopperschmidt-Mueller Gmbh & Co Kg, 4800 Bielefeld | Spray gun |
DE3710395A1 (en) * | 1987-03-28 | 1988-10-13 | Bruno Jesswein | Spray gun for foam |
US5683544A (en) * | 1994-04-09 | 1997-11-04 | Kopp; Volker | Adhesive foam gun |
US5687913A (en) * | 1995-06-06 | 1997-11-18 | Badger Air Brush Co. | Air brush with paint flow regulating |
EP0903211A2 (en) * | 1997-09-19 | 1999-03-24 | Rigo S.r.l. | Self-cleaning gun for delivering a polyurethane foamed material |
-
1999
- 1999-09-15 IT IT1999MI000573U patent/IT247533Y1/en active
-
2000
- 2000-09-06 AT AT00119259T patent/ATE242095T1/en not_active IP Right Cessation
- 2000-09-06 DE DE60003130T patent/DE60003130D1/en not_active Expired - Lifetime
- 2000-09-06 EP EP00119259A patent/EP1084809B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3518492A1 (en) * | 1985-05-23 | 1986-11-27 | Kopperschmidt-Mueller Gmbh & Co Kg, 4800 Bielefeld | Spray gun |
DE3710395A1 (en) * | 1987-03-28 | 1988-10-13 | Bruno Jesswein | Spray gun for foam |
US5683544A (en) * | 1994-04-09 | 1997-11-04 | Kopp; Volker | Adhesive foam gun |
US5687913A (en) * | 1995-06-06 | 1997-11-18 | Badger Air Brush Co. | Air brush with paint flow regulating |
EP0903211A2 (en) * | 1997-09-19 | 1999-03-24 | Rigo S.r.l. | Self-cleaning gun for delivering a polyurethane foamed material |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010078817A1 (en) * | 2009-01-06 | 2010-07-15 | Zheng Ying | Foam gun with flow regulating device |
CN102029247A (en) * | 2009-10-08 | 2011-04-27 | 王良 | Foaming tool with safety control mechanism |
CN102327850A (en) * | 2011-04-28 | 2012-01-25 | 梁海军 | Foaming gun and assembly method thereof |
WO2014118298A1 (en) * | 2013-02-01 | 2014-08-07 | Altachem Nv | Device for dispensing pressurized fluids |
Also Published As
Publication number | Publication date |
---|---|
EP1084809B1 (en) | 2003-06-04 |
ITMI990573V0 (en) | 1999-09-15 |
ATE242095T1 (en) | 2003-06-15 |
ITMI990573U1 (en) | 2001-03-15 |
DE60003130D1 (en) | 2003-07-10 |
IT247533Y1 (en) | 2002-09-05 |
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