• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a spray gun suitable for applying an uncured plaster material to a surface, said spray gun comprising an input for receiving the plaster material, an outlet for delivering the plaster material, at least one compressed air inlet, and a first and second compressed air nozzle. The outlet is designed as an elongated slot and wherein the first and second compressed air nozzles are arranged parallel to said outlet respectively above and below it, and where the first and second compressed air nozzles are capable of partly feeding the plaster material away from the spray gun and partly that deliver a lift of the uncured plaster material. Thereby, a spray gun is provided suitable for applying an uncured plaster material to a surface, e.g. a wall where the plaster material can be sprayed thereon in a homogeneous manner. The homogeneous distribution of the cushion material is ensured by the elongate slot constituting the outlet of the cushion material and the first and second compressed air nozzles. By designing the spray gun with a first and second compressed air nozzle, it is possible to manipulate said plaster material. The use of a spray gun as described results in an easy and inexpensive way of applying plaster material, thereby achieving a considerable saving in working time compared to known methods. Due to the homogeneous distribution of the plaster material on the surface, the plaster material immediately after sufficient curing may be suitable for further processing, e.g. painting or applying wall covering.
    公开号:DK201800417A1
    申请号:DKP201800417
    申请日:2018-07-25
    公开日:2020-01-14
    发明作者:Jensen Ole
    申请人:Spray Gun And Mix Aps；
    IPC主号:
    专利说明:

    TITLE
    Spray gun
    TECHNICAL FIELD
    The invention relates to an apparatus for applying uncured plaster material.
    BACKGROUND OF THE INVENTION
    Applying plaster to a surface, including walls, can be hard and slow work, as it is typically necessary to use trowelers and such tools to ensure a homogeneous distribution of the material and to ensure a uniform thickness.
    Various plaster materials are known containing sand putty / pulp or plaster or similar materials. These plaster materials are often difficult to apply, while often requiring finishing before subsequent application of paint or wall coverings such as wallpaper and the like. Furthermore, it is known that a granular wool granulate can be used as a filler. This provides a plaster material which can be applied in one work, regardless of thickness, to form a neat and smooth surface that does not form cracks or sinks during the setting, and which after normal time curing without finishing can be treated with all known types of paints and wall coverings such as wallpaper and similar coverings.
    Therefore, it is desirable to have a solution that can solve some of the above-mentioned problems, including in relation to the workflow.
    DESCRIPTION
    BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a spray gun capable of solving the above-mentioned problems, suitable for applying an uncured plaster material to a surface, said spray gun comprising an inlet for receiving the plaster material, an outlet for discharging the plaster material, at least one compressed air inlet, and a first and other compressed air nozzle. The outlet is designed as an elongated slot, and wherein the first and second compressed air nozzles are arranged in parallel with said outlet above and below, respectively, and wherein the first and second
    DK 2018 00417 A1 compressed air nozzle is capable of partly feeding the plaster material in a direction away from the spray gun and partly delivering a lift of the uncured plaster material.
    A spray gun means a tool suitable for spraying / feeding a liquid material. An uncured plaster material is primarily understood to be a mixture of gypsum, filler and water having a certain viscosity, so it can be considered liquid and therefore manipulable by a spray gun. After a short time, e.g. after 15 minutes to 24 hours, the material will harden and thereby harden. More specifically, the filler may be a rock wool granule which is mixed with plaster prior to the addition of water. The gypsum and filler are mixed together in an appropriate mixture before adding water in an amount adapted to the desired consistency. Optionally, an additional adhesive material and / or any dyes are added.
    A surface can e.g. be a wall, e.g. a wall covered with an insulating material, including stone wool, where it is desired to coat said stone wool with a plaster material. The plaster material can thereby provide an alternative to the mounting of molded plasterboard which can be a hard work.
    By an entrance to receive the plaster material, it is to be understood that said spray gun comprises a housing or inner cavity wherein the plaster material is received from a source of constant flow (e.g., weight / time or volume / time). An outlet for dispensing the plaster material is understood to mean that the plaster material, after passing through the spray gun housing, is discharged through an outlet. By at least one compressed air inlet is meant that the spray gun comprises an input to compressed air, wherein said compressed air is passed through a duct system and out to a first and second compressed air nozzle. Two compressed air inputs may be preferred, the two compressed air nozzles being thereby manipulated / regulated independently of one another, e.g. thus, the air pressure can be adjusted depending on the situation (for example, the viscosity of the plaster material or the working situation).
    The output is designed as an oblong slot. It is preferred that the cross-sectional area of the exit is identical to the cross-sectional area of the entrance to avoid accumulation of plaster material in the spray gun housing. The cross section of the entrance can e.g. be circular, as it is easy to attach a hose. As mentioned above, the output is formed as an elongated slot, for example having a length of 5 cm to 20 cm, or more specifically from 8 cm to 15 cm. The width of the slot may be from 2 mm to 20 mm, or more specifically from 5 mm to 15 mm.
    DK 2018 00417 A1
    The first and second compressed air nozzles are arranged parallel above and below the outlet. Each of said first and second compressed air nozzles is arranged parallel to the elongate slot which constitutes the outlet of the plaster material. For example, the compressed air nozzles are arranged 3 mm to 15 mm above and below the slot. The distance to the slot may vary from one and the other compressed air nozzle.
    Thereby, a spray gun is provided suitable for applying an uncured plaster material to a surface, e.g. a wall where the plaster material can be sprayed thereon in a homogeneous manner. The homogeneous distribution of the cushion material is ensured by the elongated slot constituting the outlet of the cushion material and the first and second compressed air nozzles. By designing the spray gun with a first and second compressed air nozzle, it is possible to manipulate said plaster material. In a typical use situation, the user of the spray gun will make sure that the slot is horizontal, so gravity will cause the plaster material (without compressed air supply) to fall like a waterfall out of said slot. By arranging the first compressed air nozzle under the slot (i.e., parallel to the slot and in a use situation where the slot is horizontal), the compressed air supplied from said compressed air nozzle causes the plaster material to be lifted so that it does not simply fall down after leaving the slot. . In other words, the compressed air is delivered homogeneously along the slot. In addition, by designing the spray gun with the second compressed air nozzle arranged over the slot (in the same circumstances as previously mentioned), said second compressed air nozzle will cause the plaster material to be conveyed with a certain force and speed so that the user can be at a certain distance (e.g. 1 m) from the surface to be coated with the cushioning material. By regulating the pressure on the used compressed air it is also possible to regulate the thickness of the plaster material applied to the surface.
    The use of a spray gun as described results in an easy and inexpensive way to apply plaster material, thereby achieving a considerable saving in working time compared to known methods. Due to the homogeneous distribution of the plaster material on the surface, said plaster material immediately after sufficient curing may be suitable for further processing, e.g. painting or applying wall covering.
    DK 2018 00417 A1
    SUMMARY OF FIGURES
    Examples of embodiments of the invention will be described below.
    FIG. 1 is a perspective view of a spray gun according to the invention,
    FIG. 2 illustrates a spray gun according to the invention in the direction towards the outlet thereof,
    FIG. 3 illustrates a side view of a spray gun according to the invention,
    FIG. 4 illustrates a use situation of the spray gun.
    DK 2018 00417 A1
    DETAILED FIGURE DESCRIPTION
    In the following, the invention will be described in detail through embodiments which are not to be construed as limiting the scope of the invention.
    FIG. 1 illustrates a spray gun 100 in perspective. The spray gun comprises a housing 101 comprising an input 102 for receiving an uncured liquid plaster material and an outlet 103 for dispensing said plaster material. In addition, the spray gun 100 comprises a first compressed air inlet 111 and a second compressed air inlet 112. Each of said compressed air inputs 111,112 enters compressed air into a first 113 and second chamber 114, from which the compressed air is directed toward the first compressed air nozzle 115 and the second compressed air nozzle 116. The compressed air nozzles 115,116 with the output 103, as is better illustrated in FIG. 2. The output 103 is formed as an elongated slot, which is also better illustrated in FIG. 2. The spray gun 100 thus functions by passing uncured plaster material from the inlet 102 through the housing 101, and further out on the outlet 103, where the design of the housing 101 causes said outlet 103 to be embossed in an elongated slot. Above and below a portion of the housing 101, the first 113 and second chamber 114 are arranged so that the compressed air is discharged to the compressed air nozzles 115, 116. In other words, a portion of the housing 101, particularly near the outlet 103, is disposed between the first 113 and second chamber 114. The compressed air nozzles 115,116 thereby end up in an oblong slot extending above and below the outlet 103.
    FIG. 2 better illustrates the output 103 and the compressed air nozzles 115,116. From the compressed air inlets 111 (reference number 112 not shown), the compressed air is fed further into the first 113 and second chamber 114, respectively, and further towards the first compressed air nozzle 115 and the second compressed air nozzle, respectively. In a preferred embodiment, the two compressed air nozzles 115,116 are thereby independent of one another, which permits a higher degree of manipulation of the operation of the spray gun 100. It should be noted that the compressed air chambers 113,114 are merely a connection between the compressed air inlets 111,112 and the compressed air nozzles 115,116, and can thereby be limited in scope by simple design changes. In FIG. 2, it should be noted in particular how the outlet 103 is formed as an elongate slot and how the first compressed air nozzle 115 and the second compressed air nozzle 116 extend parallel to this slot / outlet. In a preferred embodiment, the cross-sectional area of the slot / outlet 103 is identical to the cross-sectional area of the input (not shown) to avoid a build-up of material. By adding a first 115 and second compressed air nozzle 116, the plaster material leaving exit 103 is allowed to be lifted and advanced (accelerated), thus allowing the spray gun to
    GB 2018 00417 A1 application of polishing material from a certain distance and higher efficiency. Furthermore, by accelerating the plaster material, this can be spread over a larger area. It should also be noted that the gaps / apertures of 115,116 of the compressed air nozzles may vary, thus permitting an adjustment of the mode of operation.
    FIG. 3 is a side view of the mouth of the spray gun 100. In particular, it should be noted how the outlet 103 is encircled by the first 115 and second compressed air nozzle 116 which are in communication with the first chamber 113 and the second chamber 114, respectively. These chambers 113,114 are in further communication with the compressed air inlets (not shown), but as mentioned, a design change can reduce or render these chambers superfluous if the compressed air inputs are fed directly to the compressed air nozzles 115,116. It should be noted how the second compressed air nozzle 116, arranged below the outlet 103, is angled differently from the first compressed air nozzle 115. This difference causes the plaster material to exit the outlet 103 in the most optimal direction relative to spreading said plaster material most homogeneously on a surface.
    FIG. 4 illustrates the spray gun 100 with compressed air turned off (Fig. 4a) and compressed air turned on (Fig. 4b). Plaster material 200 is illustrated by a dotted line, although it should be understood that it is not part of the invention. In FIG. 4a, the lack of compressed air causes the plaster material 200 to simply exit the outlet 103 at the same rate as it is supplied to the spray gun 100 via the inlet (not shown) - drops like a waterfall due to gravity. In FIG. 4b, it is illustrated how the compressed air (illustrated by arrows) causes the pad material 200 to be lifted and conveyed. The angle between the direction of the compressed air (arrows) and the output 103 is optimized, thus the putty material 200 exits the output 103 in an optimal direction. In particular, the second compressed air nozzle 116 contributes to a lift (which corresponds to gravity), while the first compressed air nozzle 115 advances and / or accelerates the pad material 200 so that it can be distributed homogeneously over a surface.
    权利要求:
    Claims (3)
    [1]
    A spray gun (100) suitable for applying uncured plaster material to a surface, characterized in that said spray gun (100) comprises an input (102) for receiving the plaster material, an outlet (103) for dispensing the plaster material, into it.
    [2]
    5 shows at least one compressed air inlet (111,112) and a first (115) and second compressed air nozzle (116), the outlet (103) being formed as an elongated slot and the first (115) and second compressed air nozzle (116) arranged in parallel with said outlet (103) above and below, respectively, and wherein the first (115) and second compressed air nozzle (116) are capable of partly feeding the plaster material in a direction away from the spray gun;
    [3]
    10 partly to deliver a lift of the uncured plaster material.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2020020996A1|2020-01-30|
    DK179997B1|2020-01-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DD272962A3|1987-08-25|1989-11-01|Ifa Automobilwerke Veb|SPRAY GUN FOR APPLYING DISPERSION SPATULA, MOERTEL AND PLASTER|
    DK163886C|1988-05-04|1992-09-07|Ole Jensen|APPLIANCE FOR APPLICATION OF PLASTIC MATERIAL|WO2022023955A1|2020-07-31|2022-02-03|3M Innovative Properties Company|Fluid atomizer|
    法律状态:
    2020-01-14| PAT| Application published|Effective date: 20200114 |
    2020-01-14| PME| Patent granted|Effective date: 20200114 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201800417A|DK179997B1|2018-07-25|2018-07-25|Spray gun|DKPA201800417A| DK179997B1|2018-07-25|2018-07-25|Spray gun|
    PCT/EP2019/070011| WO2020020996A1|2018-07-25|2019-07-25|Spray gun for plaster material|
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