JP5702977B2

JP5702977B2 - Valve for powder

Info

Publication number: JP5702977B2
Application number: JP2010209964A
Authority: JP
Inventors: 義之羽生
Original assignee: ミツミ技研工業株式会社
Priority date: 2010-09-17
Filing date: 2010-09-17
Publication date: 2015-04-15
Anticipated expiration: 2030-09-17
Also published as: JP2012063001A

Description

本発明は、主に粉体物や粒体物が通る通路の開閉に用いられる粉粒体用バルブに関するものである。 The present invention relates to a valve for a granular material used mainly for opening and closing a passage through which a powder or granular material passes.

従来において、主に粉体物や粒体物が通る通路の開閉には、ボールバルブやゲートバルブ等が用いられていた（例えば特許文献１，２参照）。 Conventionally, ball valves, gate valves, and the like have been used to open and close passages through which powders and granular materials mainly pass (see, for example, Patent Documents 1 and 2).

従来の粉粒体用バルブの１つであるボールバルブは、粉体物や粒体物が通る通路を有する弁箱の内部に、その通路を塞いだり、粉体物や粒体物が通れるように開通させたりできるようにするために、弁箱の入口側と出口側それぞれの通路間に、弁体が挟まれるようにして配置されていた。この弁体は球体状になっており、粉体物や粒体物が通る通路を構成する貫通孔が形成されていた。 A ball valve, which is one of the conventional valves for powder particles, closes the passage inside a valve box having a passage through which powder and particles pass, and allows powder and particles to pass through. In order to allow the valve body to be opened, the valve body is disposed between the passages on the inlet side and the outlet side of the valve box. The valve body has a spherical shape, and has a through-hole that forms a passage through which the powder or granular material passes.

この従来のボールバルブは、その弁体の貫通孔の内周面と、弁箱の入口側と出口側それぞれの通路の内周面とが完全に合致して連通することにより、粉体物や粒体物が通る通路を全開にすることができるようになっていた。 In this conventional ball valve, the inner peripheral surface of the through hole of the valve body and the inner peripheral surfaces of the passages on the inlet side and the outlet side of the valve box are completely matched to communicate with each other. The passage through which the granular material passes can be fully opened.

そして、従来のボールバルブは、その弁体がその貫通孔の軸方向に対して垂直方向に突き出して軸支された弁軸と一体的に構成されており、この弁軸の回りに弁体が９０度回転して、その貫通孔と弁箱の通路が連通した状態から、弁体の貫通孔と弁箱の通路とが連通しなくなることにより、粉体物や粒体物が通る通路を閉止することができるようになっていた。 The conventional ball valve is configured integrally with a valve shaft that is pivotally supported with its valve body protruding in a direction perpendicular to the axial direction of the through-hole, and the valve body is disposed around the valve shaft. When the through hole and valve box passage communicate with each other after rotating 90 degrees, the passage through which the powder and granules pass is closed when the through hole of the valve body and the passage of the valve box stop communicating. I was able to do it.

このため、従来のボールバルブを用いることにより、粉体物や粒体物が通る通路を開閉することができるようになっていた。 For this reason, by using a conventional ball valve, it has become possible to open and close the passage through which the powder or granular material passes.

一方、従来の粉粒体用バルブのもう１つであるゲートバルブは、粉体物や粒体物が通る通路を有する弁箱の内部に、その入口側と出口側それぞれの通路間に、やはり弁体が挟まれるようにして、その通路を開閉するように配置されていた。 On the other hand, a gate valve, which is another conventional valve for powder and granular materials, is provided inside a valve box having a passage through which powder and granular materials pass, and between the respective inlet and outlet passages. The valve body is disposed so as to open and close the passage so that the valve body is sandwiched.

そして、このゲートバルブの弁体は円盤状になっており、その板厚方向が弁箱の通路の軸方向と一致するよう配置されていた。この従来のゲートバルブは、その弁体が弁箱の通路を塞ぐことにより、粉体物や粒体物が通る通路を閉じることができるようになっていた。 And the valve body of this gate valve was a disk shape, and it was arrange | positioned so that the plate | board thickness direction might correspond with the axial direction of the channel | path of a valve box. In this conventional gate valve, the valve body closes the passage of the valve box, so that the passage through which the powder or granular material passes can be closed.

そして、従来のゲートバルブは、その弁体が弁箱の通路の軸方向に対して垂直方向に移動することができるようになっており、弁体がその垂直方向に移動することによって弁箱の通路を塞がなくなって、粉体物や粒体物が通る通路を開くことができるようになっていた。 The conventional gate valve is configured such that the valve body can move in a direction perpendicular to the axial direction of the passage of the valve box, and the valve body moves in the vertical direction, thereby The passages were not blocked, and the passages through which powders and granules were passed could be opened.

このため、従来のゲートバルブを用いることによっても、粉体物や粒体物が通る通路を開閉することができるようになっていた。 For this reason, it has become possible to open and close the passage through which the powder and granular materials pass even by using a conventional gate valve.

特開２００１−２８９３３５号公報JP 2001-289335 A 特開２００１−２３５０３９号公報JP 2001-235039 A

しかしながら、このような従来のボールバルブやゲートバルブが、粉体物や粒体物が通る通路の開閉に用いられる場合は、以下のような問題があった。 However, when such a conventional ball valve or gate valve is used for opening and closing a passage through which a powder or granular material passes, there are the following problems.

すなわち、従来のボールバルブやゲートバルブにおいては、弁の開閉動作をする弁体やその近傍の弁箱の通路などに粉体物や粒体物が付着又は堆積してしまうという問題があった。 In other words, conventional ball valves and gate valves have a problem that powders and granular materials adhere to or accumulate on a valve body that opens and closes the valve and a passage of a valve box in the vicinity thereof.

弁体が弁の開閉動作をする際に、上記付着又は堆積した粉体物又は粒体物や、弁箱との間に摩擦が生じるため、弁箱や弁体が摩耗したり、弁の開閉動作に支障を来たしてしまうと共に、粉粒体用バルブの耐久性を劣化させるという問題があった。 When the valve body opens and closes, friction occurs between the attached or deposited powder or granule and the valve box. There are problems that the operation is hindered and the durability of the valve for granular material is deteriorated.

また、従来のボールバルブやゲートバルブは、金属製であるため重量が重く、また、その構造が複雑であるため、その製作コストが高価となるという問題があった。 Further, the conventional ball valve and gate valve are made of metal and thus have a heavy weight, and the structure thereof is complicated, so that the manufacturing cost is high.

また、従来のボールバルブやゲートバルブには他に、上記粉体物や粒体物の付着又は堆積の問題を解決するために、弁箱内部に付着した付着物を拭う構造を加えたものもあったが、このような構造を追加することは、従来のボールバルブやゲートバルブをさらに複雑な構造にしてしまい、さらにその製作コストが高価となるという問題があった。 In addition to the conventional ball valve and gate valve, there is also a structure in which a structure for wiping off deposits adhering to the inside of the valve box is added in order to solve the above-mentioned problem of adhesion or accumulation of powders and granules. However, the addition of such a structure has a problem that the conventional ball valve and gate valve have a more complicated structure, and the manufacturing cost is increased.

また、従来のボールバルブやゲートバルブにおいては、弁箱や弁の内部を通過する粉体物や粒体物をその外部から視認することができないため、弁の開閉動作や、弁の内部を通過する粉体物や粒体物の状況を確認することができないという問題もあった。 In addition, in conventional ball valves and gate valves, the powder and granules passing through the valve box and valve cannot be seen from the outside, so the valve opens and closes or passes through the valve. There has also been a problem that the status of the powders and granules to be confirmed cannot be confirmed.

そこで本発明は、上記問題点に鑑みて、構造が簡単かつ重量が軽量であって、粉体物や粒体物の付着又は堆積によりその耐久性が劣化することを防止できると共に、その内部の状況を外部から容易に確認することができる粉粒体用バルブを提供することを課題とするものである。 Therefore, in view of the above problems, the present invention has a simple structure and is light in weight, and can prevent the durability from being deteriorated due to adhesion or deposition of powders or granules, It is an object of the present invention to provide a valve for a granular material that can easily check the situation from the outside.

上記課題を解決するために、本発明による粉粒体用バルブは、
透明又は半透明であり、かつ耐折曲げ性を有する材料を用い、筒孔が形成された筒状の筒状部を有する筒体と、
前記筒状部を折り曲げ線部に沿って折り曲げることにより前記筒孔を閉止させると共に、前記折り曲げられた折り曲げ線部を折り戻すことにより前記筒孔を開通させる筒孔開閉手段とを備え、
前記筒状部は、その軸方向に直角の断面形状が略ロの字状の四角筒状に形成され、
前記折り曲げ線部は、
前記筒状部の互いに対向する一対の肉厚の平面における、前記筒孔の軸方向と直角の方向に平行方向の中央の位置を連結して形成された第１の折り曲げ線部と、
前記第１の折り曲げ線部が設けられた前記一対の肉厚の平面における、前記第１の折り曲げ線部の一端から分岐してその平面の２つの隅部それぞれにかけて伸びるよう形成された２本の第２の折り曲げ線部と、
前記筒孔の軸方向と直角の方向に平行の方向で、それぞれが互いに平行に設けられており、それぞれが前記筒状部の全周面にわたって繋がる無端状に形成された２本の第３の折り曲げ線部を有することを特徴とするものである。 In order to solve the above problems, a valve for a granular material according to the present invention is:
Using a material that is transparent or translucent and has bending resistance, a cylindrical body having a cylindrical cylindrical portion in which a cylindrical hole is formed;
A cylindrical hole opening / closing means for closing the cylindrical hole by folding the cylindrical part along the folding line part and opening the cylindrical hole by folding back the folded folding line part ;
The cylindrical portion is formed in a square cylindrical shape having a substantially square cross-sectional shape perpendicular to the axial direction thereof,
The bend line part is
A first fold line portion formed by connecting a central position in a parallel direction to a direction perpendicular to the axial direction of the cylindrical hole in a pair of opposed thickness planes of the cylindrical portion;
In the pair of thick planes provided with the first fold line portion, two branches formed from one end of the first fold line portion and extending to each of two corners of the plane are provided. A second fold line portion;
Two third ends formed in parallel to each other in a direction perpendicular to the axial direction of the cylindrical hole and each endlessly connected over the entire circumferential surface of the cylindrical portion. It has a fold line part .

また、本発明による粉粒体用バルブは、
前記筒状部の折り曲げ線部は、前記筒状部の所定の位置の肉厚に折り癖を加工することにより、前記折り曲げ線部の肉厚が折り曲げ可能になっていることを特徴とするものである。 Moreover, the valve for granular materials according to the present invention is:
The fold line portion of the tubular portion is formed such that the thickness of the fold line portion can be folded by processing a crease into a thickness at a predetermined position of the tubular portion. It is.

また、本発明による粉粒体用バルブは、
前記筒状部の軸方向の端部に、前記筒体を他部に固定するための固定手段が一体的に形成されていることを特徴とするものである。 Moreover, the valve for granular materials according to the present invention is:
A fixing means for fixing the cylindrical body to the other part is integrally formed at an end portion in the axial direction of the cylindrical part.

また、本発明による粉粒体用バルブは、
前記筒孔開閉手段は、
前記筒状部の筒孔の軸方向に直角の断面形状の外側に配置され、前記筒孔の軸方向とほぼ直角の方向とほぼ平行の方向に伸びるように配置された１本の第１棒部材と、
前記筒状部の筒孔の軸方向に直角の断面形状の外側で、前記筒状部を挟んで前記第１棒部材と反対側に配置され、前記筒孔の軸方向とほぼ直角の方向とほぼ平行の方向に伸び、かつ互いに一定間隔離れて平行に配置される一対の第２棒部材とを備え、
前記第１棒部材と前記一対の第２棒部材とが前記筒状部の筒孔の軸方向に直角の断面形状を挟み込んで互いに近付き、前記一対の第２棒部材の間に前記第１棒部材が入り込むことにより前記筒孔が閉止され、
この状態から前記第１棒部材が前記一対の第２棒部材の間から抜け出すことにより前記筒孔が開通されることを特徴とするものである。 Moreover, the valve for granular materials according to the present invention is:
The cylinder hole opening / closing means includes
One first rod disposed outside the cross-sectional shape perpendicular to the axial direction of the tubular hole of the tubular portion and disposed so as to extend in a direction substantially parallel to a direction substantially perpendicular to the axial direction of the tubular hole. Members,
An outer side of a cross-sectional shape perpendicular to the axial direction of the cylindrical hole of the cylindrical portion, and disposed on the opposite side of the first rod member across the cylindrical portion, and a direction substantially perpendicular to the axial direction of the cylindrical hole; A pair of second rod members extending in a substantially parallel direction and arranged parallel to each other at a predetermined interval;
The first rod member and the pair of second rod members approach each other with a cross-sectional shape perpendicular to the axial direction of the tubular hole of the tubular portion interposed therebetween, and the first rod between the pair of second rod members. When the member enters, the tube hole is closed,
The cylindrical hole is opened when the first rod member comes out from between the pair of second rod members from this state.

また、本発明による粉粒体用バルブは、
前記一対の第２棒部材は、前記筒孔の軸方向に一定間隔離れて平行に配置されると共に、この一対の第２棒部材間の中間位置が前記第１棒部材の位置に対向するように配置されていることを特徴とするものである。 Moreover, the valve for granular materials according to the present invention is:
The pair of second rod members are arranged in parallel with a certain distance in the axial direction of the cylindrical hole, and an intermediate position between the pair of second rod members is opposed to the position of the first rod member. It is characterized by being arranged.

また、本発明による粉粒体用バルブは、
前記筒孔開閉手段は、
前記筒状部の外周面に沿って前記第１棒部材を吊下げて保持する第１保持部と、
前記筒状部の前記第１保持部とは反対側の外周面に沿って前記一対の第２棒部材のうちの一方を吊下げて保持する第２保持部と
を備えたことを特徴とするものである。 Moreover, the valve for granular materials according to the present invention is:
The cylinder hole opening / closing means includes
A first holding portion for holding the first rod member by hanging along the outer peripheral surface of the tubular portion;
And a second holding portion that holds and holds one of the pair of second rod members along an outer peripheral surface of the cylindrical portion opposite to the first holding portion. Is.

このような本発明の粉粒体用バルブによれば、
透明又は半透明であり、かつ耐折曲げ性を有する材料を用い、筒孔が形成された筒状の筒状部を有する筒体と、
前記筒状部を折り曲げ線部に沿って折り曲げることにより前記筒孔を閉止させると共に、前記折り曲げられた折り曲げ線部を折り戻すことにより前記筒孔を開通させる筒孔開閉手段とを備えたことにより、
構造が簡単かつ重量が軽量であって、粉体物や粒体物の付着又は堆積によりその耐久性が劣化することを防止できると共に、その内部の状況を外部から容易に確認することができる。 According to such a valve for granular material of the present invention,
Using a material that is transparent or translucent and has bending resistance, a cylindrical body having a cylindrical cylindrical portion in which a cylindrical hole is formed;
A tube hole opening / closing means for closing the tube hole by bending the tube-shaped portion along the bend line portion and opening the tube hole by folding back the bent bend line portion; ,
The structure is simple and the weight is light, and it is possible to prevent the durability from deteriorating due to the adhesion or deposition of powders and granules, and the internal situation can be easily confirmed from the outside.

本発明の第１の実施の形態に係る粉粒体用バルブ２を示す斜視図である。It is a perspective view which shows the valve 2 for granular materials which concerns on the 1st Embodiment of this invention. 図１に示す粉粒体用バルブ２を示す図であって、筒体４を仮想線で示した斜視図である。It is a figure which shows the valve | bulb 2 for granular materials shown in FIG. 1, Comprising: It is the perspective view which showed the cylinder 4 with the virtual line. 図１に示す粉粒体用バルブ２を第１棒部材１０側から見た側面図である。It is the side view which looked at the valve | bulb 2 for granular materials shown in FIG. 1 from the 1st rod member 10 side. 図３に示す粉粒体用バルブ２の正面図である。It is a front view of the valve 2 for granular materials shown in FIG. 図３に示す粉粒体用バルブ２の筒体４の筒状部６のＡ−Ａ線矢視断面図である。It is AA arrow sectional drawing of the cylindrical part 6 of the cylinder 4 of the valve | bulb 2 for granular materials shown in FIG. 図３に示す粉粒体用バルブ２のＢ−Ｂ線矢視拡大断面図である。FIG. 4 is an enlarged cross-sectional view taken along line B-B of the granular material valve 2 shown in FIG. 3. 折り目Ｑ，Ｐ，Ｒを折り曲げたときの粉粒体用バルブ２の第１棒部材１０側から見た側面図である。It is the side view seen from the 1st bar | burr member 10 side of the valve | bulb 2 for granular materials when the creases Q, P, and R are bent. 図７に示す粉粒体用バルブ２の正面図である。It is a front view of the valve 2 for granular materials shown in FIG. 図７，８に示す粉粒体用バルブ２から第１棒部材１０とそれ以外の係止具１２だけを取り出して示す斜視図である。It is a perspective view which takes out only the 1st rod member 10 and the other locking tool 12 from the valve | bulb 2 for granular materials shown in FIG. 図７に示す粉粒体用バルブ２のＣ−Ｃ線矢視拡大断面図である。It is CC sectional view expanded sectional drawing of the valve | bulb 2 for granular materials shown in FIG. 図７に示す粉粒体用バルブ２の筒状部６のそれを若干開口させた状態を示すＤ−Ｄ線矢視断面図である。It is DD sectional view taken on the line of the arrow D which shows the state which opened the cylindrical part 6 of the valve | bulb 2 for granular materials shown in FIG. 7 a little. 本発明の第２の実施の形態に係る粉粒体用バルブ４０から第１棒部材１０とそれ以外の係止具４２だけを取り出して示す斜視図である。It is a perspective view which takes out and shows only the 1st rod member 10 and the other locking tool 42 from the valve | bulb 40 for granular materials which concerns on the 2nd Embodiment of this invention. 図１２に示す第１棒部材１０と係止具４２の使用状態を示す斜視図である。It is a perspective view which shows the use condition of the 1st rod member 10 and the locking tool 42 which are shown in FIG. 本発明の第２の実施の形態に係る粉粒体用バルブ４０が半開状態のときの筒体４の筒状部６の断面図である。It is sectional drawing of the cylindrical part 6 of the cylinder 4 when the valve 40 for granular materials which concerns on the 2nd Embodiment of this invention is a half open state.

以下、本発明に係る粉粒体用バルブを実施するための形態について、図面に基づいて具体的に説明する。
図１から図１０は、本発明の第１の実施の形態に係る粉粒体用バルブ２について説明するために参照する図である。 Hereinafter, the form for implementing the valve | bulb for granular materials which concerns on this invention is demonstrated concretely based on drawing.
FIGS. 1-10 is a figure referred in order to demonstrate the granular material valve | bulb 2 which concerns on the 1st Embodiment of this invention.

本発明の第１の実施の形態に係る粉粒体用バルブ２は、図１に示すように、筒体４と、その筒体４の片側に配置された第１棒部材１０（筒孔開閉手段）と、筒体４の第１棒部材１０と反対側に配置された一対の第２棒部材１４，１６（筒孔開閉手段）を有する係止具１２（筒孔開閉手段）により構成されている。 As shown in FIG. 1, the granular material valve 2 according to the first exemplary embodiment of the present invention includes a cylindrical body 4 and a first rod member 10 (opening / closing a cylindrical hole) disposed on one side of the cylindrical body 4. And a locking member 12 (cylinder hole opening / closing means) having a pair of second rod members 14 and 16 (cylinder hole opening / closing means) disposed on the opposite side of the first rod member 10 of the cylinder 4. ing.

そして、この本実施の形態に係る粉粒体用バルブ２の筒体４は筒状部６を有し、この筒状部６は、透明又は半透明であり、かつ人の力ではきれいに折曲げることができないような強度と厚さの関係を有する（耐折曲げ性を有する）材料により形成されている。 And the cylinder 4 of the valve | bulb 2 for granular materials which concerns on this this embodiment has the cylindrical part 6, and this cylindrical part 6 is transparent or semi-transparent, and bend | folds neatly by human power. It is formed of a material having a relationship between strength and thickness that cannot be bent (having bending resistance).

また、この筒体４の筒状部６は、上記耐折曲げ性を有しているので、人の力ではきれいに折曲げることができないが、所定の位置に配置された折り目（折り曲げ線部）に沿って、肉厚がきれいに折り曲げ可能になるような折り癖が、予めその肉厚に加工されている。 Moreover, since the cylindrical part 6 of this cylindrical body 4 has the said bending resistance, it cannot bend | folded beautifully with a human force, However, The crease | fold (folding line part) arrange | positioned in the predetermined position A crease having a thickness that can be bent neatly is previously processed to the thickness.

このような特性を有する材料としては、例えばポリプロピレンが挙げられるが、同等の性質や強度を有する材料であれば、他の、どのような材料を用いてもよい。 Examples of the material having such characteristics include polypropylene, but any other material may be used as long as the material has equivalent properties and strength.

この筒体４は、図１及び図５に示すように、筒孔６ａの軸方向（図１中上下方向，図５中紙面に垂直方向）に対して直角の断面形状が略ロの字形となっている四角筒状に形成された筒状部６と、その筒状部６の筒孔６ａの軸方向上端部に一体的に形成されたフランジ部８（固定手段）とを備えたものである。 As shown in FIGS. 1 and 5, the cylindrical body 4 has a substantially rectangular cross-sectional shape perpendicular to the axial direction of the cylindrical hole 6a (the vertical direction in FIG. 1 and the direction perpendicular to the paper surface in FIG. 5). A cylindrical portion 6 formed into a square cylindrical shape, and a flange portion 8 (fixing means) integrally formed at the axial upper end of the cylindrical hole 6a of the cylindrical portion 6 is there.

上記筒状部６は、筒孔６ａの軸方向に対して平行な面の肉厚に折り癖が加工された４本の折り目Ｎで折り曲げられて、この４本の折り目Ｎそれぞれが、筒孔６ａの軸方向に対して直角の断面形状が略ロの字形となっている四角筒状の四隅の角部となるように形成されている。 The cylindrical portion 6 is bent by four folds N in which creases are processed to have a thickness parallel to the axial direction of the cylindrical hole 6a, and each of the four folds N is a cylindrical hole. The cross-sectional shape perpendicular to the axial direction of 6a is formed so as to be the corners of the four corners of a rectangular cylinder having a substantially square shape.

図１に示すように、筒体４のフランジ部８は、筒状部６の上端部の外周面から外側に突き出している。そして、このフランジ部８は、筒体４の筒孔６ａの軸方向（図１中上下方向）に直角の平面形状が略ロの字形の板状に形成されている。この筒体４のフランジ部８は、その平面の外形寸法が、その筒孔６ａの軸方向（図１中上下方向）に直角の断面の外形寸法より大きく形成されている。 As shown in FIG. 1, the flange portion 8 of the cylindrical body 4 protrudes outward from the outer peripheral surface of the upper end portion of the cylindrical portion 6. The flange portion 8 is formed in a plate shape whose plane shape perpendicular to the axial direction (vertical direction in FIG. 1) of the cylindrical hole 6a of the cylindrical body 4 is a substantially square shape. The flange portion 8 of the cylindrical body 4 is formed so that the outer dimension of the plane is larger than the outer dimension of the cross section perpendicular to the axial direction (vertical direction in FIG. 1) of the cylindrical hole 6a.

図１に示すように、筒体４のフランジ部８には、その板厚方向に貫通する貫通孔８ａが８個形成されている。そして、粉粒体用バルブ２は、このフランジ部８の貫通孔８ａと、この貫通孔８ａを貫通する不図示のボルトやそれに締結されるナット等を介することにより、不図示のホッパーや、筒孔６ａの軸方向（図１中上下方向）に隣合う筒体４のフランジ部８などに固定されるようになっている。 As shown in FIG. 1, the through hole 8 a penetrating in the plate thickness direction is formed in the flange portion 8 of the cylindrical body 4. And the granular material valve | bulb 2 is connected to the through-hole 8a of this flange part 8, the unillustrated bolt which penetrates this through-hole 8a, the nut fastened to it, etc., and a non-illustrated hopper or cylinder It is fixed to the flange portion 8 of the cylindrical body 4 adjacent in the axial direction (the vertical direction in FIG. 1) of the hole 6a.

次に、図２は、図１に示す粉粒体用バルブ２から、その筒体４を仮に取り除いた状態を示す図であって、その取り除いた筒体４を元の配置箇所に仮想線（二点鎖線）で示すことにより、図１中筒体４の背後に一部分が隠れていた係止具１２が見易くなるようにした斜視図である。 Next, FIG. 2 is a diagram showing a state in which the cylindrical body 4 is temporarily removed from the granular particle valve 2 shown in FIG. 1, and the removed cylindrical body 4 is placed in a virtual line ( 2 is a perspective view that makes it easy to see the locking tool 12 partially hidden behind the cylindrical body 4 in FIG. 1.

図２から図４に示すように、粉粒体用バルブ２の係止具１２は、一対の第２棒部材１４，１６と、これらの両端部に設けられた２つの連結部材１８と、２つのレバー部材２０と、２つの爪部材２２と、２つの把持部２６により構成されている。 As shown in FIGS. 2 to 4, the locking member 12 of the granular material valve 2 includes a pair of second rod members 14 and 16, two connecting members 18 provided at both ends thereof, and 2 and 2. The two lever members 20, the two claw members 22, and the two grip portions 26 are configured.

この係止具１２の一対の第２棒部材１４，１６は、図２及び図３に示すように、互いに平行方向に伸びるように配置され、ほぼ鉛直方向に間隔をおいて並んで配置されている。そして、一対の第２棒部材１４，１６は、互いの両端部がそれぞれ連結部材１８に連結されている。 As shown in FIGS. 2 and 3, the pair of second rod members 14 and 16 of the locking tool 12 are arranged so as to extend in parallel to each other, and are arranged side by side in a substantially vertical direction. Yes. The pair of second rod members 14 and 16 are connected to the connecting member 18 at both ends.

この一対の第２棒部材１４，１６それぞれの両端部には、その両端面に開口する、図示してない雌ネジ穴が加工されている。そして、図２から図４に示す頭付ボルト２４の不図示の雄ネジ部が、一対の第２棒部材１４，１６の両端部それぞれに対応して形成された、連結部材１８の不図示の貫通孔を通り抜けて、一対の第２棒部材１４，１６の両端面に開口する雌ネジ穴にネジ締結されることにより、一対の第２棒部材１４，１６は連結部材１８に固定されている。 At both ends of the pair of second rod members 14 and 16, female screw holes (not shown) that are opened at both end surfaces are processed. And the male screw part (not shown) of the headed bolt 24 shown in FIGS. 2 to 4 is formed corresponding to each of both ends of the pair of second rod members 14 and 16 (not shown). The pair of second rod members 14, 16 are fixed to the connecting member 18 by being screwed into female screw holes that pass through the through holes and open on both end faces of the pair of second rod members 14, 16. .

図５は、図３に示す粉粒体用バルブ２の筒体４の筒状部６のＡ−Ａ線矢視の断面を示した図である。同図に示すように、第１棒部材１０は、筒状部６の、筒孔６ａの軸方向（図５中紙面に垂直方向）に直角の略ロの字形の断面形状の外側に配置され、筒孔６ａの軸方向とほぼ直角の方向に平行方向かつ水平方向に伸びるように配置されている。 FIG. 5 is a view showing a cross section taken along line AA of the tubular portion 6 of the tubular body 4 of the granular material valve 2 shown in FIG. 3. As shown in the figure, the first rod member 10 is disposed outside the cross-section of a substantially square shape perpendicular to the axial direction of the cylindrical hole 6a (perpendicular to the paper surface in FIG. 5) of the cylindrical portion 6. Further, they are arranged so as to extend in a parallel direction and a horizontal direction in a direction substantially perpendicular to the axial direction of the cylindrical hole 6a.

一方、図２から図５に示すように、係止具１２は、筒体４の外側の一方に、第１棒部材１０が筒孔６ａの軸方向（図５中紙面垂直方向）とほぼ直角の方向に平行方向かつ水平方向に伸びるように配置されると共に、筒体４に対して第１棒部材１０と反対側に、その一対の第２棒部材１４，１６（図５中においては符号１４のみ図示）が、筒孔６ａの軸方向（図５中紙面に垂直方向）とほぼ直角の方向に平行方向かつ水平方向に伸びるように配置されている。 On the other hand, as shown in FIGS. 2 to 5, the locking member 12 has a first rod member 10 on one of the outer sides of the cylindrical body 4 and substantially perpendicular to the axial direction of the cylindrical hole 6 a (perpendicular to the paper surface in FIG. 5). And a pair of second rod members 14 and 16 (reference numerals in FIG. 5) on the side opposite to the first rod member 10 with respect to the cylindrical body 4. 14 is shown so as to extend in a direction parallel to and in the horizontal direction substantially perpendicular to the axial direction of the cylindrical hole 6a (the direction perpendicular to the paper surface in FIG. 5).

このため、第１棒部材１０と、係止具１２の一対の第２棒部材１４，１６とは、筒体４を挟んで互いに対向して、互いの長さ方向がほぼ平行となるように配置されている。また、図３及び図６に示すように、第１棒部材１０の高さ位置は、係止具１２の一対の第２棒部材１４，１６それぞれの高さ位置の中間の高さ位置となるように配置されている。 For this reason, the first rod member 10 and the pair of second rod members 14 and 16 of the locking member 12 face each other with the cylindrical body 4 interposed therebetween so that the length directions thereof are substantially parallel to each other. Has been placed. Further, as shown in FIGS. 3 and 6, the height position of the first bar member 10 is an intermediate height position between the height positions of the pair of second bar members 14 and 16 of the locking tool 12. Are arranged as follows.

また、図２から図４に示すように、係止具１２の２つの把持部２６のそれぞれは、係止具１２の２つの連結部材１８が互いに対向する方向の両外側に１つずつ配置され、この２つの連結部材１８のそれぞれに一体的に形成されている。 Further, as shown in FIGS. 2 to 4, each of the two gripping portions 26 of the locking tool 12 is arranged one on each outer side in the direction in which the two connecting members 18 of the locking tool 12 face each other. The two connecting members 18 are formed integrally with each other.

図３に示すように、この２つの把持部２６の外側先端部間の長さ寸法と、第１棒部材１０の長さ寸法は、互いにほぼ同じ長さになるように設定されている。 As shown in FIG. 3, the length between the outer tips of the two gripping portions 26 and the length of the first rod member 10 are set to be substantially the same length.

また、図６に示すように、第１棒部材１０と、係止具１２の一対の第２棒部材１４，１６のうちの上側の第２棒部材１４のそれぞれは、筒体４の筒状部６の外周面に沿って固定された第１保持部材３０（筒孔開閉手段）及び第２保持部材３２（筒孔開閉手段）により吊り下げられて保持されている。 In addition, as shown in FIG. 6, each of the first rod member 10 and the upper second rod member 14 of the pair of second rod members 14, 16 of the locking tool 12 is a tubular shape of the tubular body 4. The first holding member 30 (cylinder hole opening / closing means) and the second holding member 32 (cylinder hole opening / closing means) fixed along the outer peripheral surface of the portion 6 are suspended and held.

この第１保持部材３０は、不図示のシート材を、その縦横一方の長さ方向に間隔を置いて、互いに平行ないくつかの折り目が形成され、これらの折り目に沿って折り曲げて、その一方の長さ方向の両端部同士を重ね合わせて接合することにより筒状に形成されている。この第１保持部材３０の筒状に形成された内部空間の直径寸法は、第１棒部材１０の直径寸法よりも十分大きく形成されている。 The first holding member 30 is formed by forming a sheet material (not shown) with several folds parallel to each other at intervals in one longitudinal and lateral length, and folding the sheet material along these folds. The two end portions in the length direction of each other are overlapped and joined to form a cylinder. The diameter dimension of the internal space formed in the cylindrical shape of the first holding member 30 is sufficiently larger than the diameter dimension of the first rod member 10.

また、図６に示すように、第１保持部材３０は、その重ね合わされて接合された両端部同士の部分が、筒体４の筒状部６の外周面上の、第１棒部材１０を所定の高さに保持する高さ位置において、上記両端部同士の間と、筒状部６との間を溶着する等により固定されて、図５に示すように、第１棒部材１０を保持するその筒形状の第１保持部材３０の軸方向が、筒状部６の筒孔６ａの軸方向（図中紙面に垂直方向）に対して直角方向に平行方向
かつ水平方向に伸びるように配置されている。 Further, as shown in FIG. 6, the first holding member 30 has the first rod member 10 on the outer peripheral surface of the tubular portion 6 of the tubular body 4 where the overlapping end portions of the first holding member 30 are joined. The first rod member 10 is held as shown in FIG. 5 by being fixed, for example, by welding between the two end portions and between the cylindrical portions 6 at a height position to be held at a predetermined height. The cylindrical first holding member 30 is arranged so that the axial direction thereof extends in a direction parallel to and perpendicular to the axial direction of the cylindrical hole 6a of the cylindrical portion 6 (perpendicular to the paper surface in the drawing) Has been.

第１棒部材１０は、図３に示すように、その長さ中央部分が第１保持部材３０に保持されているため、筒体４の中心軸線Ｌに対して、図中左右に伸びる長さがほぼ同じ長さになるように配置されている。 As shown in FIG. 3, the first rod member 10 has a central portion that is held by the first holding member 30, so that the first rod member 10 extends to the left and right in the drawing with respect to the central axis L of the cylindrical body 4. Are arranged to have almost the same length.

図５及び図６に示すように、第２保持部材３２は、第１保持部材３０と同様に構成されており、筒体４の筒状部６の外周面に沿って、第２棒部材１４を所定の高さ位置に保持する高さ位置に固定されている。また、図３に示すように、係止具１２の第２棒部材１４は、その長さ中央部分が第２保持部材３２に保持されているため、筒体４の中心軸線Ｌに対して、図中左右に伸びる長さがほぼ同じ長さになるように配置されている。 As shown in FIGS. 5 and 6, the second holding member 32 is configured in the same manner as the first holding member 30, and extends along the outer peripheral surface of the cylindrical portion 6 of the cylindrical body 4. Is fixed at a height position for holding the at a predetermined height position. Also, as shown in FIG. 3, the second rod member 14 of the locking tool 12 is held by the second holding member 32 at the center of its length, so that the center axis L of the cylinder 4 is In the figure, they are arranged so that the lengths extending in the left and right directions are substantially the same.

また、図５に示すように、第１保持部材３０と第２保持部材３２のそれぞれは、筒体４の筒状部６の断面形状であって、後述するガセット方式により折畳まれていない、筒孔６ａが開口した状態の略正方形の、厚さを有する断面形状における一辺の長さよりも若干短い長さ、すなわち、筒状部６の断面形状の外周長さの約１／４の長さよりも若干短い長さを有するように設定されて形成されている。 Further, as shown in FIG. 5, each of the first holding member 30 and the second holding member 32 is a cross-sectional shape of the cylindrical portion 6 of the cylindrical body 4 and is not folded by a gusset method described later. From the length of one half of the length of one side in the cross-sectional shape having a thickness of a substantially square shape with the cylindrical hole 6a opened, that is, the length of about 1/4 of the outer peripheral length of the cross-sectional shape of the cylindrical portion 6 Is also set and formed to have a slightly shorter length.

また、筒体４の筒状部６は、図１から図６に示すように、筒孔６ａがその軸方向の両端部間にわたって開口しており、その筒孔６ａを粉体物や粒体物が通ることができるように開いた状態になっている（開状態）。 Further, as shown in FIGS. 1 to 6, the cylindrical portion 6 of the cylindrical body 4 has a cylindrical hole 6a that opens between both end portions in the axial direction. It is in an open state so that things can pass through (open state).

この筒体４の筒状部６が開いた状態から、第１棒部材１０と、係止具１２の一対の第２棒部材１４，１６が、この筒体４の図５に示す断面形状を、図中上下方向から押し潰すように互いに近付けていって、図７及び図８に示すように、第１棒部材１０が、係止具１２の一対の第２棒部材１４，１６の間に平行に入り込んで、それらの間に筒状部６の筒孔６ａの軸方向の一部を挟み込むことにより、筒孔６ａは潰れて閉止されるようになっている（閉状態）。 From the state in which the tubular portion 6 of the tubular body 4 is opened, the first rod member 10 and the pair of second rod members 14 and 16 of the locking tool 12 have the cross-sectional shape shown in FIG. The first bar member 10 is located between the pair of second bar members 14 and 16 of the locking tool 12 as shown in FIGS. The cylindrical hole 6a is crushed and closed (closed state) by entering in parallel and sandwiching a part of the cylindrical hole 6a of the cylindrical part 6 in the axial direction between them.

図９は、第１棒部材１０が、係止具１２における一対の第２棒部材１４，１６の間に平行に入り込んだ状態を示す図であって、筒体４を図示しないようにした斜視図である。係止具１２の一対の第２棒部材１４，１６の間に、第１棒部材１０を押し込んで入り込ませた状態になることにより、係止具１２の爪部材２２が第１棒部材１０に引っ掛かって、第１棒部材１０は第２棒部材１４，１６の間から容易に抜け出さないようになっている。 FIG. 9 is a view showing a state in which the first rod member 10 enters in parallel between the pair of second rod members 14 and 16 in the locking tool 12, and is a perspective view in which the cylindrical body 4 is not shown. FIG. When the first bar member 10 is pushed in between the pair of second bar members 14, 16 of the locking tool 12, the claw member 22 of the locking tool 12 is moved to the first bar member 10. The first rod member 10 is not easily pulled out from between the second rod members 14 and 16 by being caught.

図８において、係止具１２のレバー部材２０を図中矢印方向に回動させるよう操作することにより、爪部材２２が第１棒部材１０を開放する方向に回動するようになっている。すなわち、この爪部材２２は、第１棒部材１０が第２棒部材１４，１６の間に入ったり、出たりするとき、第１棒部材１０に引っ掛かったり、外れたりするようになっている。 In FIG. 8, by operating the lever member 20 of the locking tool 12 to rotate in the direction of the arrow in the figure, the claw member 22 is rotated in the direction to open the first bar member 10. That is, the claw member 22 is adapted to be caught or detached from the first bar member 10 when the first bar member 10 enters or exits between the second bar members 14 and 16.

また、図１及び図５に示すように、筒体４の筒状部６には、その筒孔６ａの軸方向（図５中紙面に垂直方向）に直角の断面形状であって、開口した状態の略ロの字形の断面形状における外周の四辺のうち、第１棒部材１０と第２棒部材１４，１６の長さ方向と直角方向（図５中上下方向）に伸びる二辺のそれぞれのほぼ中央の位置に、筒体４の筒状部６の内側に向けて凹むよう折れ曲がるように、肉厚に折り癖が加工された折り目Ｐが、その辺を有する面の図１中下端から高さ中央部にかけて形成されている。 As shown in FIGS. 1 and 5, the cylindrical portion 6 of the cylindrical body 4 has a cross-sectional shape perpendicular to the axial direction of the cylindrical hole 6a (perpendicular to the paper surface in FIG. 5) and has an opening. Of the four sides of the outer periphery in the substantially square cross-sectional shape of the state, each of the two sides extending in the direction perpendicular to the length direction of the first rod member 10 and the second rod members 14, 16 (vertical direction in FIG. 5) A crease P having a thick crease so as to bend toward the inside of the cylindrical portion 6 of the cylindrical body 4 at a substantially central position is high from the lower end in FIG. It is formed over the central part.

そして、図４に示すように、筒体４の筒状部６には、折り目Ｐが形成された２つの肉厚の面に形成された、折り目Ｐの上端から２本に分岐して開くように、折り目Ｐの上端からその面の上方左右隅部にかけて伸び、筒状部６の内側に向けて凹むよう折れ曲がることが可能となるように、肉厚に折り癖が加工された２本の折り目Ｑが、それぞれ設けられている。 Then, as shown in FIG. 4, the cylindrical portion 6 of the cylindrical body 4 is opened on two branches from the upper end of the fold line P formed on the two thick surfaces where the fold line P is formed. Further, the two folds are formed with a thick crease so as to extend from the upper end of the crease P to the upper left and right corners of the surface and bend toward the inside of the tubular part 6. Q is provided respectively.

これにより、筒体４の筒状部６の断面形状が、第１棒部材１０と、一対の第２棒部材１４，１６とに挟まれて、これらが図５中上下方向に徐々に接近して、筒状部６の断面形状が押し潰されるよう変形することにより、筒孔６ａを閉止することができる。 As a result, the cross-sectional shape of the cylindrical portion 6 of the cylindrical body 4 is sandwiched between the first rod member 10 and the pair of second rod members 14 and 16, and these gradually approach in the vertical direction in FIG. Thus, the cylindrical hole 6a can be closed by deforming so that the cross-sectional shape of the cylindrical portion 6 is crushed.

このときは、図７，１１に示すように、互いに対向する２つの折り目Ｐそれぞれが筒状部６の中央に移動していくと共に、計４本の折り目Ｑのそれぞれも筒状部６の内側に入り込んでいくようになっているので、例えば包装用袋の隅部の折り畳み構造に用いられる、いわゆるガゼット方式の折り畳み構造により筒状部６が平面状に折畳まれるようになっている。 At this time, as shown in FIGS. 7 and 11, each of the two folds P facing each other moves to the center of the cylindrical part 6, and each of the four folds Q is also inside the cylindrical part 6. The tubular portion 6 is folded into a flat shape by a so-called gusseted folding structure used for, for example, the folding structure of the corner of the packaging bag.

さらに、図３から図５に示すように、筒体４の筒状部６は、筒孔６ａの軸方向（図５中紙面に垂直方向）に直角の断面形状であって、開口した状態の略ロの字形の断面形状における四辺の面全てにわたって、筒状部６のほぼ高さ中央部に、折り目Ｐに直角であって、互いに平行な２本の折り目Ｒが水平方向に形成されている。 Further, as shown in FIGS. 3 to 5, the cylindrical portion 6 of the cylindrical body 4 has a cross-sectional shape perpendicular to the axial direction of the cylindrical hole 6 a (perpendicular to the paper surface in FIG. 5) and is in an open state. Two fold lines R that are perpendicular to the fold line P and parallel to each other are formed in the horizontal direction at substantially the center of the height of the cylindrical part 6 over all four sides of the substantially rectangular cross-sectional shape. .

この２本の折り目Ｒは、図１０に示すように、筒体４の筒状部６の図中上下方向の断面形状が、第１棒部材１０と、係止具１２の一対の第２棒部材１４，１６との間に挟まれることにより筒孔６ａが閉止されるとき、第１棒部材１０と、一対の第２棒部材１４，１６それぞれの間に、筒状部６の図中上下方向の一部が食い込むことができるように、互いに反対側に折れ曲がるように肉厚に一対の折り癖が加工されている。 As shown in FIG. 10, the two creases R are such that the cross-sectional shape in the vertical direction of the tubular portion 6 of the tubular body 4 is the first rod member 10 and a pair of second rods of the locking tool 12. When the cylindrical hole 6a is closed by being sandwiched between the members 14 and 16, the cylindrical portion 6 is vertically moved between the first rod member 10 and the pair of second rod members 14 and 16, respectively. A pair of creases are processed in thickness so that they can be bent in opposite directions so that a part of the direction can bite.

このため、筒体４の筒状部６は、図８及び図１０に示すように、筒孔６ａが閉止された状態においては、その折り曲げられた図中上下方向の一部が、２本の折り目Ｒにおいて第２棒部材１４，１６間で第１棒部材１０の周りに巻きつくように折れ曲がることにより、筒状部６の図中上下方向の一部は略くの字状に変形するようになっている。 For this reason, as shown in FIGS. 8 and 10, the cylindrical portion 6 of the cylindrical body 4 has two portions in the vertical direction in the folded view in the state where the cylindrical hole 6 a is closed. In the crease R, a part of the cylindrical portion 6 in the vertical direction in the drawing is deformed into a substantially square shape by being bent around the first rod member 10 between the second rod members 14 and 16. It has become.

筒体４の筒状部６は、このように筒孔６ａが閉止状態になったときには、第２棒部材１４，１６間で第１棒部材１０の周りに巻きつくように折れ曲がる、上記図中上下方向の一部において、仮に、この筒孔６ａの軸方向に連通する微小の隙間が生じようとしても、上記図中上下方向の一部では、筒状部６の筒孔６ａの内周面同士が強い力で密着することにより、そのような微小の隙間ができないようになっている。このため、筒状部６の筒孔６ａ内の粉体物又は粒体物は、筒孔６ａを通り抜けることが全くできないようになっている。 When the cylindrical hole 6a is closed as described above, the cylindrical portion 6 of the cylindrical body 4 is bent so as to be wound around the first rod member 10 between the second rod members 14 and 16. Even if a small gap communicating in the axial direction of the cylindrical hole 6a is generated in a part in the vertical direction, the inner peripheral surface of the cylindrical hole 6a in the cylindrical part 6 is partially in the vertical direction in the figure. Such minute gaps cannot be formed by close contact with each other with a strong force. For this reason, the powder substance or the granular material in the cylindrical hole 6a of the cylindrical part 6 cannot pass through the cylindrical hole 6a at all.

また、筒体４の筒状部６は、図８に示すような、筒孔６ａが閉止された状態から、第１棒部材１０が係止具１２の第２棒部材１４，１６間から離脱することにより、図４に示すように、筒孔６ａが開いた状態に戻るようになっている。 Further, the cylindrical portion 6 of the cylindrical body 4 is separated from the first rod member 10 from between the second rod members 14 and 16 of the locking tool 12 from the state where the cylindrical hole 6a is closed as shown in FIG. By doing so, as shown in FIG. 4, the tube hole 6a is returned to the open state.

このため、本発明の第１の実施の形態に係る粉粒体用バルブ２は、筒体４と、第１棒部材１０と、第２棒部材１４，１６を有する係止具１２とを備えるだけなので、その装置の構造を簡単なものにすることができる。また、使用する金属の量を従来よりも大幅に低減できるので、装置を軽量化できると共に、製造コストも低減できるようになっている。 For this reason, the granular material valve 2 according to the first embodiment of the present invention includes a cylindrical body 4, a first bar member 10, and a locking tool 12 having second bar members 14 and 16. Therefore, the structure of the device can be simplified. In addition, since the amount of metal used can be greatly reduced as compared with the prior art, the apparatus can be reduced in weight and the manufacturing cost can be reduced.

また、粉粒体用バルブ２は、筒体４の筒状部６の折り目Ｎ，Ｐ，Ｑ，Ｒを折り曲げたり、折り戻したりすることにより、その筒孔６ａを開閉するようになっているため、筒孔６ａに粉体物や粒体物が付着又は堆積するようなことがないので、弁体が摩耗したり、弁の開閉動作に支障を来たしたりすることがなく、その耐久性を向上させることができるようにもなっている。 Moreover, the valve | bulb 2 for granular materials opens and closes the cylinder hole 6a by bend | folding or folding back the creases N, P, Q, and R of the cylindrical part 6 of the cylinder 4. FIG. Therefore, there is no possibility that the powder or granule adheres or accumulates in the cylindrical hole 6a, so that the valve body is not worn or the opening / closing operation of the valve is not hindered. It can also be improved.

また、筒体４は、人の力ではきれいに折曲げることができないような強度と厚さの関係を有する、耐折曲げ性を有する材料により、肉厚が折り目に沿って折り曲げ可能に折り癖が加工されているため、その折り目以外の部分において容易に撓むことを防止して、その外形形状が大きく変化することを防止できるために、その耐久性を一層向上させることができるようになっている。 In addition, the cylindrical body 4 has a strength and thickness relationship that cannot be folded cleanly by human force, and is made of a material having bending resistance so that the thickness of the cylindrical body 4 can be folded along the crease. Since it has been processed, it can be prevented from being easily bent at portions other than the crease, and its outer shape can be prevented from changing greatly, so that its durability can be further improved. Yes.

また、筒体４は、透明又は半透明な素材により形成されているために、その内部を通る粉体物や粒体物をその外部から視認することができるので、筒体４の内部を通る粉体物や粒体物の状況を容易に確認することができるようになっている。 Moreover, since the cylinder 4 is formed of a transparent or translucent material, it is possible to visually recognize the powder and granular materials passing through the inside from the outside, so that the cylinder 4 passes through the inside of the cylinder 4. It is possible to easily check the status of the powder or granule.

このため、本発明の第１の実施の形態に係る粉粒体用バルブ２によれば、構造が簡単かつ重量が軽量であって、粉体物や粒体物の付着又は堆積により弁体が摩耗したり、弁の開閉動作に支障を来たしたりすることがなく、その耐久性を向上させることができると共に、その開閉動作や、その内部を通過する粉体物や粒体物の状況を外部から容易に確認することができる。 For this reason, according to the valve 2 for a granular material according to the first embodiment of the present invention, the structure is simple and the weight is light, and the valve body is caused by the adhesion or deposition of the powder or granular material. The durability of the valve can be improved without being worn out or hindering the opening and closing operation of the valve, and the opening and closing operation and the status of the powder and granules passing through the inside can be externally determined. Can be easily confirmed.

図１２から図１４は、本発明の第２の実施の形態に係る粉粒体用バルブ４０（図１４参照）について説明するために参照する図である。 FIG. 12 to FIG. 14 are views which are referred to for explaining the powder valve 40 (see FIG. 14) according to the second embodiment of the present invention.

前記第１の実施の形態に係る粉粒体用バルブ２における係止具１２は、図９に示すように、一対の第２棒部材１４，１６と、これらの両端部それぞれに設けられた、それぞれ２つの連結部材１８と、レバー部材２０と、爪部材２２と、把持部２６により構成されていたのに対して、本発明の第２の実施の形態に係る粉粒体用バルブ４０における係止具４２は、図１２に示すように、一対の第２棒部材１４，１６と、これらの端部の一方に設けられた、それぞれ１つの連結部材１８と、レバー部材２０と、爪部材２２と、把持部２６と共に、一対の第２棒部材１４，１６の端部の他方に設けられた板状の連結部材４４により構成されている点で異なるものである。 As shown in FIG. 9, the locking member 12 in the granular particle valve 2 according to the first embodiment is provided at a pair of second rod members 14 and 16 and both ends thereof, Each of the connecting members 18, the lever member 20, the claw member 22, and the gripping portion 26 is constituted by the engaging member in the granular material valve 40 according to the second embodiment of the present invention. As shown in FIG. 12, the stopper 42 includes a pair of second rod members 14, 16, one connecting member 18, a lever member 20, and a claw member 22 provided at one of these ends. And the gripping portion 26 and the plate-like connecting member 44 provided on the other end of the pair of second rod members 14 and 16 is different.

上記係止具４２の一対の第２棒部材１４，１６は、共にこれらの端部の一方がそれぞれ、同じ１つの連結部材１８に連結されており、共にこれらの端部の他方がそれぞれ、同じ１つの連結部材４４に連結されている。 Each of the pair of second rod members 14 and 16 of the locking device 42 is connected to the same connecting member 18 at one of these ends, and the other of these ends is the same. It is connected to one connecting member 44.

この一対の第２棒部材１４，１６それぞれの両端部には、その両端面に開口する、図示してない雌ネジ穴が加工されている。そして、図１２に示す頭付ボルト２４の不図示の雄ネジ部が、一対の第２棒部材１４，１６の両端部それぞれに対応して形成された、連結部材１８，４４の不図示の貫通孔を通り抜けて、一対の第２棒部材１４，１６の両端面に開口する雌ネジ穴にネジ締結されることにより、一対の第２棒部材１４，１６は連結部材１８，４４に固定されている。 At both ends of the pair of second rod members 14 and 16, female screw holes (not shown) that are opened at both end surfaces are processed. Then, unillustrated male screw portions of the headed bolt 24 shown in FIG. 12 are formed through the coupling members 18 and 44 (not shown) formed corresponding to both ends of the pair of second rod members 14 and 16, respectively. The pair of second rod members 14 and 16 are fixed to the connecting members 18 and 44 by being screwed into the female screw holes that pass through the holes and open on both end faces of the pair of second rod members 14 and 16. Yes.

図１２に示すように、連結部材４４はその長さ方向の中央の、連結部材４４に固定される一対の第２棒部材１４，１６それぞれの位置の中間の位置に、その長さ方向とは垂直方向に長さを有する長穴４４ａが形成されている。 As shown in FIG. 12, the connecting member 44 is located at the center in the length direction, at a position intermediate between the positions of the pair of second rod members 14 and 16 fixed to the connecting member 44. A long hole 44a having a length in the vertical direction is formed.

また、図１から図６に示すように、筒体４の筒状部６は、筒孔６ａがその軸方向の両端部間にわたって開口しており、その筒孔６ａを粉体物や粒体物が通ることができるように開いた状態になっている（開状態）。 As shown in FIGS. 1 to 6, the cylindrical portion 6 of the cylindrical body 4 has a cylindrical hole 6 a that is open between both axial end portions, and the cylindrical hole 6 a is formed into a powder or granular material. It is in an open state so that things can pass through (open state).

筒体４の筒状部６の、図５に示す断面形状を閉止するには、まず、図１３に示すように、第１棒部材１０の長さ方向の先端部を、一対の第２棒部材１４，１６が連結されている連結部材４４の長穴４４ａに貫通させて引っ掛け、第１棒部材１０と第２棒部材１４，１６との間の角度が小さくなっていくように、第１棒部材１０の長さ方向の後端部を第２棒部材１４，１６に向って回動させていくと、筒状部６の断面形状は、図１４に示すように、図中上下方向から図中右半分を押し潰して互いの一方の端部を近付けていって、半開状態となる。 In order to close the cross-sectional shape shown in FIG. 5 of the cylindrical part 6 of the cylindrical body 4, first, as shown in FIG. 13, the front-end | tip part of the length direction of the 1st rod member 10 is made into a pair of 2nd rod. The first and second rod members 10 and 16 are angled so that the angle between the first rod member 10 and the second rod members 14 and 16 is reduced by penetrating through the elongated hole 44a of the coupling member 44 to which the members 14 and 16 are coupled. When the rear end portion in the length direction of the rod member 10 is rotated toward the second rod members 14 and 16, the cross-sectional shape of the tubular portion 6 is as shown in FIG. In the drawing, the right half is crushed to bring one end portion closer to each other, resulting in a half-open state.

この半開状態からさらに、第１棒部材１０と第２棒部材１４，１６との間の角度が小さくなっていくように、第１棒部材１０の長さ方向の後端部を第２棒部材１４，１６に向って回動させていくと、図８に示すように、第１棒部材１０が、係止具４２の一対の第２棒部材１４，１６の間に平行に入り込んで、それらの間に筒状部６の筒孔６ａの軸方向の一部を挟み込むことにより、筒状部６の断面形状は潰されて、筒孔６ａが閉止された閉状態となる。 The rear end portion of the first rod member 10 in the length direction is further adjusted to the second rod member so that the angle between the first rod member 10 and the second rod members 14 and 16 is further reduced from the half-open state. As shown in FIG. 8, the first rod member 10 enters in parallel between the pair of second rod members 14 and 16 of the locking device 42 as shown in FIG. By sandwiching a part in the axial direction of the cylindrical hole 6a of the cylindrical part 6 between them, the cross-sectional shape of the cylindrical part 6 is crushed, and the cylindrical hole 6a is closed.

図１２に示すように、係止具４２の一対の第２棒部材１４，１６の間に、第１棒部材１０を押し込んで入り込ませた状態になることにより、係止具４２の爪部材２２及び連結部材４４の長穴４４ａが第１棒部材１０に引っ掛かって、第１棒部材１０は第２棒部材１４，１６の間から容易に抜け出さないようになっている。 As shown in FIG. 12, the claw member 22 of the locking tool 42 is obtained by pressing the first bar member 10 between the pair of second bar members 14, 16 of the locking tool 42. In addition, the elongated hole 44 a of the connecting member 44 is caught by the first rod member 10, so that the first rod member 10 does not easily come out from between the second rod members 14, 16.

このような本発明の第２の実施の形態に係る粉粒体用バルブ４０によっても、第１の実施の形態に係る粉粒体用バルブ２と同様の効果を得ることができ、構造が簡単かつ重量が軽量であって、粉体物や粒体物の付着又は堆積により弁体が摩耗したり、弁の開閉動作に支障を来たしたりすることがなく、その耐久性を向上させることができると共に、その開閉動作や、その内部を通過する粉体物や粒体物の状況を外部から容易に確認することができる。 Also with the granular material valve 40 according to the second embodiment of the present invention, the same effect as the granular material valve 2 according to the first embodiment can be obtained, and the structure is simple. In addition, the weight is light, and the durability of the valve body can be improved without causing the valve body to be worn away or hindering the opening / closing operation of the valve due to the adhesion or accumulation of powder or granule. At the same time, it is possible to easily confirm the opening / closing operation and the state of the powder or granule passing through the inside from the outside.

さらに、本実施の形態に係る粉粒体用バルブ４０は、一対の第２棒部材１４，１６の両端部の一方側にのみレバー部材２０と爪部材２２が設けられているため、第１棒部材１０と一対の第２棒部材１４，１６の取り付け及び取り外し作業を前記第１の実施の形態に係る粉粒体用バルブ２よりも容易に行なうことができる。 Furthermore, since the granular material valve 40 according to the present embodiment is provided with the lever member 20 and the claw member 22 only on one side of both end portions of the pair of second rod members 14 and 16, the first rod The attachment and detachment work of the member 10 and the pair of second rod members 14 and 16 can be performed more easily than the granular material valve 2 according to the first embodiment.

なお、前記第１の実施の形態に係る粉粒体用バルブ２においては、筒体４の筒状部６の一端部にフランジ部８が一体的に形成されていたが、このフランジ部８は筒体４の筒状部６の他端部に形成したり、両端部に形成してもよい。また、上記粉粒体用バルブ２においては、フランジ部８には、その板厚方向に貫通する貫通孔８ａが８個形成されていたが、配置される位置や数は当然これに限定されるものではない。 In the granular material valve 2 according to the first embodiment, the flange portion 8 is integrally formed at one end of the tubular portion 6 of the tubular body 4. You may form in the other end part of the cylindrical part 6 of the cylinder 4, and may form in both ends. Moreover, in the said granular material valve | bulb 2, although the eight through-holes 8a penetrated in the plate | board thickness direction were formed in the flange part 8, the position and number of arrangement | positioning are naturally limited to this. It is not a thing.

また、前記第１の実施の形態に係る粉粒体用バルブ２においては、筒体４の筒状部６は、断面形状が略ロの字形に形成されていたが、その断面形状が円形状等のどのような形状になっていてもよい。 Moreover, in the granular material valve | bulb 2 which concerns on the said 1st Embodiment, although the cylindrical part 6 of the cylinder 4 was formed in the substantially square shape in cross-sectional shape, the cross-sectional shape is circular. Or any other shape.

また、例えば、前記第１の実施の形態に係る粉粒体用バルブ２においては、図５に示すような筒体４の筒状部６の断面形状が略ロの字形になった状態を開状態とするようになっていたが、図１４に示すような予めその折り目の一部分が閉止した状態を開状態にするようにしたものであってもよい。 Further, for example, in the granular material valve 2 according to the first embodiment, the state in which the cross-sectional shape of the cylindrical portion 6 of the cylindrical body 4 as shown in FIG. However, a state in which a part of the fold is closed in advance as shown in FIG. 14 may be opened.

また、前記第１の実施の形態に係る粉粒体用バルブ２においては、一対の第２棒部材１４，１６の両端部に連結部材１８が設けられていたが、第１棒部材と一対の第２棒部材が互いの長さ方向の一端部の間に設けられたヒンジにより連結されて、互いに回動可能に設けられる構成になっていてもよい。 Moreover, in the granular material valve | bulb 2 which concerns on the said 1st Embodiment, although the connection member 18 was provided in the both ends of a pair of 2nd rod members 14 and 16, a 1st rod member and a pair of The second rod member may be connected by a hinge provided between one end portions in the length direction of each other and may be configured to be rotatable with respect to each other.

また、前記第１の実施の形態に係る粉粒体用バルブ２においては、筒体４の筒状部６に折り目Ｎ，Ｐ，Ｑ，Ｒが形成されるようになっていたが、上記実施の形態の折り目Ｎ，Ｐ，Ｑ，Ｒのような折り目のみに限定される必要は無く、筒体４の筒状部６が平面状に折り畳むことができれば、筒状部６における折り目の形状や配置される位置、或は数は、他のどのようなものにも自由に定めることができる。 In the granular material valve 2 according to the first embodiment, the folds N, P, Q, and R are formed in the cylindrical portion 6 of the cylindrical body 4. It is not necessary to be limited only to the folds such as the folds N, P, Q, and R. If the cylindrical portion 6 of the cylindrical body 4 can be folded into a flat shape, the shape of the folds in the cylindrical portion 6 The position or number of placement can be freely set to anything else.

２粉粒体用バルブ
４筒体
６筒状部
６ａ筒孔
８フランジ部
８ａ貫通孔
１０第１棒部材
１２係止具
１４，１６第２棒部材
１８連結部材
２０レバー部材
２２爪部材
２４頭付ボルト
２６把持部
３０第１保持部材
３２第２保持部材
４０粉粒体用バルブ
４２係止具
４４連結部材
４４ａ長穴
Ｎ，Ｐ，Ｑ，Ｒ折り目 2 Valve for granular material 4 Cylindrical body 6 Cylindrical part 6a Cylindrical hole 8 Flange part 8a Through hole 10 1st rod member 12 Locking tool 14,16 2nd rod member 18 Connecting member 20 Lever member 22 Claw member 24 With head Bolt 26 Grasping part 30 First holding member 32 Second holding member 40 Valve for granular material 42 Locking tool 44 Connecting member 44a Long hole N, P, Q, R Fold

Claims

Using a material that is transparent or translucent and has bending resistance, a cylindrical body having a cylindrical cylindrical portion in which a cylindrical hole is formed;
A cylindrical hole opening / closing means for closing the cylindrical hole by folding the cylindrical part along the folding line part and opening the cylindrical hole by folding back the folded folding line part ;
The cylindrical portion is formed in a square cylindrical shape having a substantially square cross-sectional shape perpendicular to the axial direction thereof,
The bend line part is
A first fold line portion formed by connecting a central position in a parallel direction to a direction perpendicular to the axial direction of the cylindrical hole in a pair of opposed thickness planes of the cylindrical portion;
In the pair of thick planes provided with the first fold line portion, two branches formed from one end of the first fold line portion and extending to each of two corners of the plane are provided. A second fold line portion;
Two third ends formed in parallel to each other in a direction perpendicular to the axial direction of the cylindrical hole and each endlessly connected over the entire circumferential surface of the cylindrical portion. A valve for a granular material, comprising a fold line portion .

The fold line portion of the tubular portion is formed such that a thickness of the fold line portion can be folded by processing a crease into a thickness at a predetermined position of the tubular portion. Item 2. A valve for a granular material according to Item 1.

3. The powder body according to claim 1, wherein a fixing means for fixing the cylindrical body to the other part is integrally formed at an end portion in the axial direction of the cylindrical part. valve.

The cylinder hole opening / closing means includes
One first rod disposed outside the cross-sectional shape perpendicular to the axial direction of the tubular hole of the tubular portion and disposed so as to extend in a direction substantially parallel to a direction substantially perpendicular to the axial direction of the tubular hole. Members,
An outer side of a cross-sectional shape perpendicular to the axial direction of the cylindrical hole of the cylindrical portion, and disposed on the opposite side of the first rod member across the cylindrical portion, and a direction substantially perpendicular to the axial direction of the cylindrical hole; A pair of second rod members extending in a substantially parallel direction and arranged parallel to each other at a predetermined interval;
The first rod member and the pair of second rod members approach each other with a cross-sectional shape perpendicular to the axial direction of the tubular hole of the tubular portion interposed therebetween, and the first rod between the pair of second rod members. When the member enters, the tube hole is closed,
Granular-body valve according to any one of claims 1 to 3, characterized in that said from this state the first rod member is the cylindrical hole is opened by the break out between the pair of second rod members .

The pair of second rod members are arranged in parallel with a certain distance in the axial direction of the cylindrical hole, and an intermediate position between the pair of second rod members is opposed to the position of the first rod member. It is arrange | positioned by these, The valve | bulb for granular materials of Claim 4 characterized by the above-mentioned.

The cylinder hole opening / closing means includes
A first holding portion for holding the first rod member by hanging along the outer peripheral surface of the tubular portion;
And a second holding portion that holds and holds one of the pair of second rod members along an outer peripheral surface of the cylindrical portion opposite to the first holding portion. The valve for granular materials according to claim 4 or 5 .