JP7509641B2 - Inner sleeve for paint container of paint spray gun - Google Patents
Inner sleeve for paint container of paint spray gun Download PDFInfo
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- JP7509641B2 JP7509641B2 JP2020166543A JP2020166543A JP7509641B2 JP 7509641 B2 JP7509641 B2 JP 7509641B2 JP 2020166543 A JP2020166543 A JP 2020166543A JP 2020166543 A JP2020166543 A JP 2020166543A JP 7509641 B2 JP7509641 B2 JP 7509641B2
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- spray gun
- paint container
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- 239000003973 paint Substances 0.000 title claims description 93
- 239000007921 spray Substances 0.000 title claims description 29
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000010422 painting Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 13
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 7
- 239000004472 Lysine Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000000071 blow moulding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Nozzles (AREA)
Description
本発明は、塗装用スプレーガンの塗料容器に内挿して、塗料を塗料容器の内面に接触させることなく収容可能な内壁として機能する使い捨て可能なインナースリーブ、および該インナースリーブを装着した塗装用スプレーガンに関する。 The present invention relates to a disposable inner sleeve that is inserted into the paint container of a paint spray gun and functions as an inner wall that can hold paint without contacting the inner surface of the paint container, and to a paint spray gun equipped with the inner sleeve.
スプレーガンは、コンプレッサーの圧縮空気を利用して、塗料などの液体を霧状に噴射して対象に吹きつける塗装装置であり、ニードル弁と吹付ノズルを備えるシリンダーに持ち手や引き金を設けた、その名のとおりピストルのような形状の本体と、本体に塗料を供給するタンク状の塗料容器とからなる。スプレーガンには、重力式、吸上式、圧送式がある。重力式は、本体よりも上方に塗料容器を設け、塗料が重力により落ちてくることで本体に供給される。吸上式は、本体の下方に塗料容器を設け、本体内の気圧を下げることで塗料が吸い上げられて本体に供給される。圧送式は、外部のポンプでタンクから塗料を圧送して本体に供給する。建築物の外壁塗装工事等では、吐出料が大きく塗料の供給が容易な重力式のスプレーガンが多用されている。 A spray gun is a painting device that uses compressed air from a compressor to spray paint or other liquids in a mist onto a target. As its name suggests, it is made up of a pistol-shaped main body with a handle and trigger attached to a cylinder equipped with a needle valve and spray nozzle, and a tank-like paint container that supplies paint to the main body. There are three types of spray guns: gravity type, suction type, and pressure feed type. With gravity type, the paint container is placed above the main body, and paint is supplied to the main body by falling due to gravity. With suction type, the paint container is placed below the main body, and paint is sucked up and supplied to the main body by lowering the air pressure inside the body. With pressure feed type, paint is pressure-fed from the tank by an external pump and supplied to the main body. Gravity type spray guns are often used for painting the exterior walls of buildings, as they have a large discharge rate and are easy to supply paint.
図１は広く普及している重力式スプレーガン２の一例であり、図２はその断面図である。例示しているのは、塗料容器の容量が大きく、液体塗料だけでなく、リシン塗装用の液体・固体が混合された粘度の大きな塗材の吹付にも用いられる、通称「万能ガン」と呼ばれている重力式スプレーガンである。この例では、シリンダー２１の上に取り付けられた塗料容器２０に持ち手２３が設けられている。塗料容器２０は上部が円筒形・下部が円錐形の筒体で、作業中でも随時塗料を追加できるように上方は開口しているが、壁面等の高い位置を塗装するためにスプレーガンを傾けた際に塗料が溢れることを防ぐために、開口部の後方側の一部には天板２４が設けられている。塗料容器２０に投入した塗料は自重によって連結孔２６からシリンダー２１内に供給され、ニードル弁２７により吐出量を調整されてノズル２２から噴射される。 FIG. 1 shows an example of a widely used gravity-type spray gun 2, and FIG. 2 shows its cross-sectional view. The example shows a gravity-type spray gun commonly called a "universal gun" that has a large capacity of a paint container and is used not only for liquid paints but also for spraying highly viscous paints that are a mixture of liquid and solid for lysine coating. In this example, a handle 23 is provided on a paint container 20 attached to a cylinder 21. The paint container 20 is a cylinder with a cylindrical upper part and a conical lower part, and is open at the top so that paint can be added at any time even during work, but a top plate 24 is provided on a part of the rear side of the opening to prevent paint from overflowing when the spray gun is tilted to paint a high position such as a wall surface. The paint charged in the paint container 20 is supplied into the cylinder 21 from a connecting hole 26 by its own weight, and the discharge amount is adjusted by a needle valve 27 and sprayed from a nozzle 22.
スプレーガンの問題点の一つは、塗料容器の洗浄である。内面に塗料が付着した塗料容器の洗浄は面倒なだけでなく、洗浄用溶剤と塗料が混じった廃液は環境負荷の高い産業廃棄物となる。そのため、工事現場では、塗料を変更する際にはスプレーガン自体を交換し、作業終了後も現場での洗浄は行えず、処理設備のある作業場に持ち帰って洗浄あるいは処分せざるを得なかった。 One of the problems with spray guns is cleaning the paint container. Not only is cleaning a paint container with paint on the inside troublesome, but the waste liquid that is a mixture of cleaning solvent and paint becomes industrial waste with a high environmental impact. For this reason, at construction sites, the spray gun itself must be replaced when changing paint, and cleaning cannot be done on-site after work is completed, so it has to be taken back to a work site with treatment equipment to be cleaned or disposed of.
かかる問題に対して、特許文献１に示されるように、塗料容器の中に塗料を入れる袋体を挿入して内壁とし、作業後は袋体を使い捨てとする液体収容カップが提案されている。また、特許文献２には、合成樹脂製の使い捨て塗料液体収容カップが提案されている。
しかし、特許文献１に開示された液体収容カップのように、内壁を袋体とした場合は、下方のシリンダーへの供給孔の部分に専用コネクタを設けなければならず、天板を有する一般的な液体容器を備えたスプレーガンには袋体を固定しにくく、専用の液体収容カップを使用しなければならない。また、モルタル外壁の施工に用いられるリシン塗装にはアクリル樹脂系塗料に石灰岩等の寒水石を混合した塗材が用いられる。かかる液体・固体の混合物で、液体塗料よりも粘度が極めて大きい塗材の場合、コネクタが目詰まりを起こすだけでなく、塗材が袋体の内面に固着し易く、シリンダーへの塗材スムースな供給が困難となり、袋体が捩れたり破れたりするおそれもある。 However, when the inner wall is a bag, as in the liquid storage cup disclosed in Patent Document 1, a dedicated connector must be provided at the supply hole to the lower cylinder, and it is difficult to attach the bag to a spray gun equipped with a general liquid container with a top plate, so a dedicated liquid storage cup must be used. In addition, for lysine coating used in the construction of mortar exterior walls, a coating material made by mixing acrylic resin paint with limestone or other kansui stone is used. In the case of such a liquid/solid mixture with a coating material that is much more viscous than liquid paint, not only do the connectors become clogged, but the coating material is likely to adhere to the inner surface of the bag, making it difficult to smoothly supply the coating material to the cylinder and causing the bag to twist or tear.
また、特許文献２に開示された液体収容カップは、成形体であるインナースリーブを開示しているが、該インナースリーブの下部に設けられた塗料供給孔は、単にシリンダー内に向けて開口するチューブ状の形態であり、リシン等の固体を含む高粘度の塗料をスムースに供給可能なものではない。 The liquid storage cup disclosed in Patent Document 2 discloses an inner sleeve that is a molded body, but the paint supply hole provided at the bottom of the inner sleeve is simply a tube-shaped hole that opens into the cylinder, and is not capable of smoothly supplying high-viscosity paint that contains solids such as lysine.
本発明は、かかる従来技術の問題を解決しようとするものであり、一般に普及している塗装用スプレーガンの塗料容器に内挿することで、リシン等の固体を含む高粘度の塗料を塗料容器の内面に接触させることなく収容し、スムースにシリンダーに供給可能な内壁として機能する、使い捨て可能なインナースリーブを提供することを課題とする。 The present invention seeks to solve the problems of the prior art by providing a disposable inner sleeve that, when inserted into the paint container of a commonly used paint spray gun, can accommodate highly viscous paint containing solids such as lysine without contacting the paint container's inner surface, and functions as an inner wall that allows paint to be smoothly supplied to the cylinder.
前項の課題を解決するために、本発明の請求項１に係る発明は、吹付ノズルのニードル弁を内蔵するシリンダーの上方に開放型の塗料容器を備える塗装用スプレーガンの該塗料容器内に装着可能な薄肉合成樹脂製のインナースリーブであって、前記インナースリーブは、前記塗料容器の内面に密着する形状の上部が円筒部、及び下部が円錐部からなる筒体であって、前記円筒部上方は一部を防溢壁で封鎖した開口部を有し、前記円錐部下方には、前記塗料容器への装着時に、前記シリンダー内の位置でノズル側に向けて開口する塗料供給孔を設けてなることを特徴とする。 In order to solve the problem described above, the invention of claim 1 is a thin-walled synthetic resin inner sleeve that can be attached to an open paint container of a paint spray gun that has an open paint container above a cylinder that incorporates a needle valve of a spray nozzle, wherein the inner sleeve is a cylindrical body consisting of a cylindrical portion at the top and a conical portion at the bottom, which is shaped to fit closely against the inner surface of the paint container, the upper part of the cylindrical portion has an opening that is partially sealed off by a spill-proof wall, and the lower part of the conical portion has a paint supply hole that opens toward the nozzle at a position within the cylinder when the inner sleeve is attached to the paint container.
請求項２に係る発明は、請求項１に記載したインナースリーブであって、前記開口部の周縁には直径の対向位置に一対の切欠部を設けてなり、該切欠部からの鉛直下方線に沿って折り畳み可能としたことを特徴とする。 The invention of claim 2 is the inner sleeve described in claim 1, characterized in that a pair of notches are provided at diametrically opposed positions on the periphery of the opening, and the sleeve can be folded along a vertical line extending downward from the notches.
請求項３に係る発明は、請求項１または請求項２のいずれかに記載したインナースリーブであって、前記円錐部は、前記塗料供給孔の周縁の一部を下方に延長した突起部を設けてなり、前記突起部には前記ニードル弁を跨いで嵌合可能な凹部を有することを特徴とする。 The invention according to claim 3 is an inner sleeve according to either claim 1 or claim 2, characterized in that the conical portion is provided with a protrusion that extends downward from a portion of the periphery of the paint supply hole, and the protrusion has a recess that can be fitted across the needle valve.
請求項４に係る発明は、請求項１から請求項３に記載したインナースリーブのいずれかを装着してなる塗装用スプレーガンである。 The invention according to claim 4 is a paint spray gun equipped with any of the inner sleeves described in claims 1 to 3.
請求項１に係るインナースリーブは、薄肉合成樹脂製であるため、リシン等の固体を含む高粘度の塗料に対しても滑りが良く、シリンダーへスムースに塗料が供給されるだけでなく、塗料中の寒水石等の固形物との摩擦にも強く、捩れたり破れたりしにくい。また、下部の塗料供給孔がシリンダー内の位置で開口しているため、塗料容器の内面に塗料が付着するおそれがなく、専用コネクターも不要である。さらに、円筒部上方の開口部の一部を防溢壁で封鎖しているため、塗料の溢れ止めの天板を備えた広く普及している既製のスプレーガンの塗料容器に適用可能である。 The inner sleeve according to claim 1 is made of a thin synthetic resin, so it slides well even on high-viscosity paints containing solids such as lysine, and not only does it smoothly supply paint to the cylinder, it also has high friction with solids such as sulphur dioxide in the paint, making it less likely to twist or break. In addition, because the paint supply hole at the bottom opens at a position inside the cylinder, there is no risk of paint adhering to the inner surface of the paint container, and no dedicated connector is required. Furthermore, because part of the opening above the cylindrical portion is sealed with an anti-overflow wall, it can be applied to paint containers of widely used, ready-made spray guns that are equipped with a top plate to prevent paint from overflowing.
請求項２に係るインナースリーブは、開口部周縁に一対の切欠部を設け、該切欠部から下方への鉛直線に沿って折り畳み可能としているため、開口部の一部が天板で封鎖された塗料容器にも容易に内挿可能である。また、折り畳んだ状態で保管できるため、嵩張らず保管が容易である。 The inner sleeve according to claim 2 has a pair of notches around the periphery of the opening and can be folded down along a vertical line from the notches, so it can be easily inserted into a paint container whose opening is partially sealed with a top plate. In addition, since it can be stored in a folded state, it is not bulky and is easy to store.
請求項３に係るインナースリーブは、塗料供給孔の周縁の一部に凹部を有する突起部を設け、凹部をシリンダー内のニードル弁に嵌合可能としているため、塗料容器に内挿する際に方向決めが容易で、嵌合後は方向が固定されるため、内挿後のインナースリーブが不用意に回転して塗料供給孔の方向がずれることが防がれる。 The inner sleeve according to claim 3 has a protrusion with a recess on part of the periphery of the paint supply hole, and the recess can be fitted into the needle valve inside the cylinder, making it easy to determine the direction when inserting it into the paint container, and since the direction is fixed after fitting, it is possible to prevent the inner sleeve from accidentally rotating after insertion and causing the direction of the paint supply hole to shift.
以下に、本発明を実施するための形態について、図面を参照して説明する。図３は本発明に係るインナースリーブ１の一実施形態に側面図、図４はノズル側からみた正面図、図５は平面図である。また、図６はインナースリーブ１を内挿した状態のスプレーガン２の断面図である。 Below, an embodiment of the present invention will be described with reference to the drawings. Fig. 3 is a side view of one embodiment of the inner sleeve 1 according to the present invention, Fig. 4 is a front view seen from the nozzle side, and Fig. 5 is a plan view. Also, Fig. 6 is a cross-sectional view of the spray gun 2 with the inner sleeve 1 inserted.
インナースリーブ１は、上方の円筒部１０と下方の円錐部１１が一体成形された筒体であり、上方の開口部１２は、後方約３分の１を防溢壁１３で封鎖しているため、略半月型の形状となっている。円錐部１１下部の頂点に当たる部分は、中心軸よりも前方側に偏った位置に塗料供給孔１５を設けた挿入部１４としており、挿入部１４の中心軸よりも後方側は、塗料容器２０からシリンダー２１にかけての接続部の内壁に設けられた曲面部２５に沿う形で前方に向けて湾曲した形状としている。 The inner sleeve 1 is a tube formed integrally with an upper cylindrical section 10 and a lower conical section 11, and the upper opening 12 has a roughly half-moon shape with about one-third of the rear section sealed off by a spill-proof wall 13. The apex of the lower part of the conical section 11 is an insertion section 14 with a paint supply hole 15 provided at a position offset forward from the central axis, and the rear side of the central axis of the insertion section 14 is curved forward to fit a curved surface section 25 provided on the inner wall of the connection section from the paint container 20 to the cylinder 21.
インナースリーブ１を塗料容器２０に内挿した際には、塗料供給孔１５を有する挿入部１４は連結孔２６を通してシリンダー２１内に嵌入し、塗料供給孔１５は前方のノズル２２側に向けて開口する。また、塗料供給孔１５を連結孔２６の半分弱程度の大きさとすることで、リシン塗料のような固体混じりの塗料でもスムースにシリンダー内に供給でき、かつ、塗料容器２０の内面には塗料が触れないようにできる。 When the inner sleeve 1 is inserted into the paint container 20, the insertion portion 14 having the paint supply hole 15 fits into the cylinder 21 through the connecting hole 26, and the paint supply hole 15 opens toward the front nozzle 22. In addition, by making the paint supply hole 15 slightly less than half the size of the connecting hole 26, even paint containing solids, such as lysine paint, can be smoothly supplied into the cylinder, and the paint can be prevented from touching the inner surface of the paint container 20.
また、本実施形態では、塗料供給孔１５の後方の周縁部の一部で挿入部１４を下方に延長させて、その先端に凹部を有する突起部１６を設けている。該凹部はシリンダー内のニードル弁２７の直径に対応した略半円形としているため、凹部がニードル弁２７を跨ぐ形で突起部１６が嵌合して固定される。かかる構成により、インナースリーブ１を塗料容器に内挿する際に位置決めが容易になり、内挿後のインナースリーブが不用意に回転して塗料供給孔の方向がずれることが防がれる。 In this embodiment, the insertion portion 14 is extended downward from a portion of the periphery behind the paint supply hole 15, and a protrusion 16 having a recess is provided at its tip. The recess is substantially semicircular in shape corresponding to the diameter of the needle valve 27 inside the cylinder, so that the protrusion 16 fits and is fixed in place with the recess straddling the needle valve 27. This configuration makes it easy to position the inner sleeve 1 when it is inserted into the paint container, and prevents the inner sleeve from accidentally rotating after insertion, which could cause the direction of the paint supply hole to shift.
また、本実施形態では、開口部１２の周縁全体に渡って外側に張り出す形のフランジ１７を設けており、インナースリーブ１を塗料容器２０に内挿した際には、フランジ１７が塗料容器２０の開口部の外周縁に当接することでインナースリーブ１が上方でも固定される。 In addition, in this embodiment, a flange 17 is provided that protrudes outward around the entire periphery of the opening 12, and when the inner sleeve 1 is inserted into the paint container 20, the flange 17 abuts against the outer periphery of the opening of the paint container 20, thereby fixing the inner sleeve 1 at the top as well.
さらに、開口部１２の外周縁には、シリンダー２１の軸線に直交する直径の対向位置に一対の切欠部１８を設けており、該切欠部１８からの鉛直下方線に沿ってインナースリーブ１を折り畳み可能としているため、折り畳んだ状態で保管すれば嵩張らないし、畳んだ状態で塗料容器２０の開口部から内挿してから開くことができるため、装着も容易となる。 Furthermore, a pair of notches 18 are provided on the outer peripheral edge of the opening 12 at diametrically opposed positions perpendicular to the axis of the cylinder 21, and the inner sleeve 1 can be folded along a vertically downward line from the notches 18. Therefore, when stored in the folded state, it does not take up much space, and since it can be inserted into the opening of the paint container 20 in the folded state and then opened, it is easy to install.
インナースリーブ１は、合成樹脂のダイレクトブロー成形またはアキュームレーター式ブロー成形によって一体的に成形可能であり、合成樹脂としては、極性が小さいために塗料が付着しにくく成形性も高いＬＤ（Low Density：低密度）ポリエチレンが好適である。また、同じく低極性で成形性が高いだけでなく、塩素を含まないので焼却してもダイオキシンが発生しないＥＶＡ（Ethylen Vinyl Acetate Copolymer：エチレン酢酸共重合体樹脂）や、非極性ＴＰＰ（Triphenylphosphine：トリフェルニホスフィン）樹脂も好適である。さらに、高コストではあるがより低極性であるシリコン樹脂あるいはフッ素樹脂（テフロン（登録商標））を用いた場合、インナースリーブ１への塗料の付着を大幅に抑制できて洗浄がし易くなり、反復再使用に好適となる。 The inner sleeve 1 can be molded as a single unit by direct blow molding or accumulator-type blow molding of synthetic resin. As a synthetic resin, LD (Low Density) polyethylene is suitable because it has low polarity, so paint does not easily adhere to it and has high moldability. EVA (Ethylen Vinyl Acetate Copolymer) and non-polar TPP (Triphenylphosphine) resins are also suitable, as they are not only low polar and highly moldable, but also do not contain chlorine and do not produce dioxins when incinerated. Furthermore, if silicone resin or fluororesin (Teflon (registered trademark)), which are expensive but have lower polarity, are used, paint adhesion to the inner sleeve 1 can be significantly suppressed, making it easier to clean and suitable for repeated reuse.
なお、インナースリーブ１をブロー成形する場合、塗料供給孔１５や突起部１６を設けた挿入部１４を一体成形しようとすると金型が複雑となるためコスト高となりがちである。また、装着対象の重力式スプレーガン２（万能ガン）のシリンダー２１の構造が異なる場合も、それに対応した金型が必要となるため、やはりコスト高となる可能性がある。これに対しては、インナースリーブ１を図３、４中に示した「Ａ－Ａ」線の上下に分けた２ピース構造とし、上部ピースをブロー成形、下部ピースを射出成形によって別々に成形し、下部ピースに上部ピースを嵌合させてインナースリーブ１として一体化させることでコストダウンが可能となる。 When blow molding the inner sleeve 1, attempting to integrally mold the insertion portion 14 with the paint supply holes 15 and protrusions 16 results in a complex mold, which tends to increase costs. Also, if the structure of the cylinder 21 of the gravity-type spray gun 2 (universal gun) to which it is to be attached is different, a corresponding mold is required, which can also increase costs. To address this issue, costs can be reduced by making the inner sleeve 1 a two-piece structure divided above and below the line "A-A" shown in Figures 3 and 4, and molding the upper piece separately by blow molding and the lower piece by injection molding, and fitting the upper piece into the lower piece to integrate them into the inner sleeve 1.
以上、本発明に係る厚肉容器の構造について詳細に説明したが、本発明は上記実施形態に限定されるものではなく、本発明の技術的思想の範囲内において改良又は変更が可能であり、それらは本発明の技術的範囲に属するものである。 The structure of the thick-walled container according to the present invention has been described in detail above, but the present invention is not limited to the above embodiment, and improvements or modifications are possible within the scope of the technical concept of the present invention, and these belong to the technical scope of the present invention.
本発明に係るインナースリーブは、建築物の外壁塗装に用いられるリシン等の固体を含む高粘度の塗料を使用する重力式スプレーガンへの適用に好適である。工事現場でのスプレーガンの洗浄作業を不要とし、作業後に洗浄廃液を発生させないため、塗装工事による環境負荷の低減に貢献できる。 The inner sleeve of the present invention is suitable for use with gravity-type spray guns that use high-viscosity paints containing solids such as lysine, which are used for painting the exterior walls of buildings. It eliminates the need to clean the spray gun at the construction site and does not generate cleaning waste liquid after work, which contributes to reducing the environmental impact of painting work.
１ インナースリーブ
１０ 円筒部
１１ 円錐部
１２ 開口部
１３ 防溢壁
１４ 挿入部
１５ 塗料供給孔
１６ 突起部
１７ フランジ
１８
切欠部
２ 万能ガン
２０ 塗料容器
２１ シリンダー
２２ ノズル
２３ 塗料調整つまみ
２４ 天板
２５ 曲面部
２６ 連結孔
２７ ニードル弁
２８
持手
REFERENCE SIGNS LIST 1 Inner sleeve 10 Cylindrical portion 11 Conical portion 12 Opening 13 Anti-spill wall 14 Insertion portion 15 Paint supply hole 16 Projection portion
17 Flange
18 Notch
2 Universal gun 20 Paint container 21 Cylinder 22 Nozzle 23 Paint adjustment knob 24 Top plate 25 Curved surface portion 26 Connection hole
27 Needle valve
28 handles
Claims (4)
前記インナースリーブは、前記塗料容器の内面に密着する形状の上部が円筒部、及び下部が円錐部からなる筒体であって、
前記円筒部上方は一部を防溢壁で封鎖した開口部を有し、
前記円錐部下方には、前記塗料容器への装着時に、前記シリンダー内の位置で、ノズル側に向けて開口する塗料供給孔を設けてなることを特徴とする、インナースリーブ。 A paint spray gun is provided with an open paint container above a cylinder that houses a needle valve of a spray nozzle. The paint container is fitted with an inner sleeve made of a thin synthetic resin,
The inner sleeve is a cylinder having an upper cylindrical portion and a lower conical portion that is shaped to fit closely to the inner surface of the paint container,
The upper part of the cylindrical portion has an opening, a part of which is sealed with a spill-proof wall,
An inner sleeve characterized in that a paint supply hole is provided below the conical portion and opens toward the nozzle side at a position within the cylinder when the inner sleeve is attached to the paint container.
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| JP2020166543A JP7509641B2 (en) | 2020-09-30 | 2020-09-30 | Inner sleeve for paint container of paint spray gun |
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| JP2020166543A JP7509641B2 (en) | 2020-09-30 | 2020-09-30 | Inner sleeve for paint container of paint spray gun |
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| JP2022057997A JP2022057997A (en) | 2022-04-11 |
| JP7509641B2 true JP7509641B2 (en) | 2024-07-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001508698A (en) | 1997-01-24 | 2001-07-03 | ミネソタ・マイニング・アンド・マニュファクチャリング・カンパニー | Liquid spray device and disposable storage container and liner suitable for use with the device |
| JP2005224735A (en) | 2004-02-16 | 2005-08-25 | Shiyu Shoji Kk | Liquid housing cup used for spray gun |
| JP2016516569A (en) | 2013-03-15 | 2016-06-09 | スリーエム イノベイティブ プロパティズ カンパニー | Pressure assisted liquid supply assembly |
-
2020
- 2020-09-30 JP JP2020166543A patent/JP7509641B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001508698A (en) | 1997-01-24 | 2001-07-03 | ミネソタ・マイニング・アンド・マニュファクチャリング・カンパニー | Liquid spray device and disposable storage container and liner suitable for use with the device |
| JP2005224735A (en) | 2004-02-16 | 2005-08-25 | Shiyu Shoji Kk | Liquid housing cup used for spray gun |
| JP2016516569A (en) | 2013-03-15 | 2016-06-09 | スリーエム イノベイティブ プロパティズ カンパニー | Pressure assisted liquid supply assembly |
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| JP2022057997A (en) | 2022-04-11 |
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