JP4318169B2 - pump - Google Patents

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JP4318169B2
JP4318169B2 JP2003284146A JP2003284146A JP4318169B2 JP 4318169 B2 JP4318169 B2 JP 4318169B2 JP 2003284146 A JP2003284146 A JP 2003284146A JP 2003284146 A JP2003284146 A JP 2003284146A JP 4318169 B2 JP4318169 B2 JP 4318169B2
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liquid
air
cylinder
passage
pump
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JP2005046816A (en
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和仁 桑原
孝之 後藤
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Description

本発明はポンプに関し、詳しくは、高粘度の液をふっくらとした感触の良い泡状に吐出することのできるポンプに関する。   The present invention relates to a pump, and more particularly, to a pump capable of discharging a high-viscosity liquid into a fluffy foam with a full feel.

容器体に装着して容器体内の液を泡状に噴出するポンプが知られている（例えば、特許文献１参照）。   There is known a pump that is attached to a container body and ejects the liquid in the container body in a foam shape (see, for example, Patent Document 1).

上記ポンプは、同心円状に液用シリンダ及び空気用シリンダを備え、また、液用シリンダ内を上下動する液用ピストンを外周より突設したステムの外周より空気用シリンダ内を上下動する空気用ピストンを突設したピストン体の上端に泡噴出用のノズル体を備え、更に、液用シリンダとノズル体の噴出口と連通させた液流路及び空気用シリンダと噴出口とを連通させた空気流路を備えており、ピストン体を上下動させることにより、液用シリンダ内の液及び空気用シリンダ内の液を途中で合流させて噴出口より泡状に噴出するものである。この際液及び空気の混合液をメッシュを通過させて均一な泡状とし、噴出口より噴出する。また、上記液と空気との合流は液流路の周囲から空気流路を合流させている。
特開平１０−１５６２３２号公報 The pump is provided with a liquid cylinder and an air cylinder concentrically, and for the air moving up and down in the air cylinder from the outer periphery of the stem in which the liquid piston moving up and down in the liquid cylinder protrudes from the outer periphery. A nozzle body for foam ejection is provided at the upper end of the piston body projecting from the piston, and further, a liquid flow path that communicates with the liquid cylinder and the ejection port of the nozzle body, and air that communicates with the air cylinder and the ejection port. A flow path is provided, and by moving the piston body up and down, the liquid in the liquid cylinder and the liquid in the air cylinder are joined together and ejected in a bubble form from the ejection port. At this time, a liquid mixture of air and air is passed through the mesh to form a uniform foam and is ejected from the ejection port. Further, the merging of the liquid and air joins the air flow path from the periphery of the liquid flow path.
Japanese Patent Laid-Open No. 10-156232

本発明はメッシュを使用することなく、しかも高粘度の液体を適度の軽量感でフワットした吐出を行えるポンプ容器を提案するものである。   The present invention proposes a pump container that can discharge a high-viscosity liquid whipped with a moderate lightness without using a mesh.

第１の手段として、以下の通り構成した。即ち、液用シリンダ３及び空気用シリンダ４を備えた固定吸引部Ａと、該固定吸引部Ａに上下動可能に装着した吐出口５付きの作動噴出部Ｂとを備え、上記作動噴出部の上下動により上記液用シリンダ内の液及び上記空気用シリンダ内の空気を同時に噴出可能に構成したポンプであって、上記液用シリンダから上記吐出口に至る通液路ａ及び上記空気用シリンダに一端を連通して他端を上記通液路内に合流させた通気路ｂを有し、上記通気路ｂの他端部が上記通液路ａ内に配置した端面閉塞の管23内に画成され、該管の周壁部に周方向等間隔に複数の透孔を穿設してなる第１透孔群28と、該第１透孔群と長手方向間隔をあけ且つ周方向にズレた位置の第２透孔群29とからなる連絡口ｐを設けて上記通液路の流れ方向と交差する方向に上記通気路を合流してなる。 The first means is configured as follows. That is, a fixed suction part A having a liquid cylinder 3 and an air cylinder 4 and an operation jet part B with a discharge port 5 attached to the fixed suction part A so as to be movable up and down are provided. A pump configured to be capable of simultaneously ejecting the liquid in the liquid cylinder and the air in the air cylinder by moving up and down, the liquid passage a extending from the liquid cylinder to the discharge port, and the air cylinder The vent passage b has one end connected and the other end joined to the liquid passage, and the other end portion of the vent passage b is defined in the end-blocked pipe 23 disposed in the liquid passage a. A first through hole group 28 formed by drilling a plurality of through holes at equal intervals in the circumferential direction on the peripheral wall portion of the tube, and spaced apart from the first through hole group in the longitudinal direction and in the circumferential direction The vent passage is provided in a direction intersecting with the flow direction of the liquid passage by providing a communication port p including the second through hole group 29 at the position The merged composed.

第２の手段として、以下の通り構成した。即ち、液用シリンダ３及び空気用シリンダ４を備えた固定吸引部Ａと、該固定吸引部Ａに上下動可能に装着した吐出口５付きの作動噴出部Ｂとを備え、上記作動噴出部の上下動により上記液用シリンダ内の液及び上記空気用シリンダ内の空気を同時に噴出可能に構成したポンプであって、上記液用シリンダから上記吐出口に至る通液路ａ及び上記空気用シリンダに一端を連通して他端を上記通液路内に合流させた通気路ｂを有し、上記通気路ｂの他端部が上記通液路ａ内に配置した管23内に画成され、端面を気密に閉塞し且つ周囲を露出した状態で上記管先端開口を閉塞した連続気泡構造の多孔質体36により構成される連絡口ｐを設けて上記通液路ａの流れ方向と交差する方向に上記通気路ｂを合流してなる。 The second means is configured as follows. That is, a fixed suction part A having a liquid cylinder 3 and an air cylinder 4 and an operation jet part B with a discharge port 5 attached to the fixed suction part A so as to be movable up and down are provided. A pump configured to be capable of simultaneously ejecting the liquid in the liquid cylinder and the air in the air cylinder by moving up and down, the liquid passage a extending from the liquid cylinder to the discharge port, and the air cylinder The air passage b has one end communicating and the other end joined into the liquid passage, and the other end of the air passage b is defined in a pipe 23 disposed in the liquid passage a. A direction intersecting with the flow direction of the fluid passage a by providing a communication port p composed of a porous body 36 having an open cell structure in which the end face is hermetically closed and the periphery is exposed, and the tube tip opening is closed. And the air passage b is joined.

本発明のポンプは、メッシュを設けることなく、比較的高粘度の液体を適度の大きさの気泡を含む軽量化されたフォームとして吐出することができ、しかも、ごく一部の構造を変化させるだけで既存のポンプを使用しての組立が可能であるため、製造上のメリットもある。   The pump of the present invention can discharge a relatively high-viscosity liquid as a light-weight foam containing bubbles of an appropriate size without providing a mesh, and only a part of the structure is changed. Because it can be assembled using an existing pump, there is also a manufacturing advantage.

また、上記通気路ｂの他端部が上記通気路ｂ内中央部に配置した端面閉塞の管23内に画成され、該管の周壁部に周方向等間隔に設けた第１透孔群28と、該第１透孔群と長手方向間隔をあけ且つ周方向にズレた位置の第２透孔群29とからなる連絡口ｐを設けて上記通液路の流れ方向と交差する方向に上記通気路を合流してなるものにあっては、気泡の連続の少ない均一な泡の吐出が可能となるとともに、より気泡密度の高い泡を吐出できる利点を兼ね備えている。 The other end of the air passage b is defined in an end-surface-closed tube 23 disposed in the central portion of the air passage b, and a first through hole group is provided in the peripheral wall portion of the tube at equal intervals in the circumferential direction. 28 and a second through hole group 29 at a position spaced apart in the longitudinal direction from the first through hole group and provided in the circumferential direction so as to intersect with the flow direction of the liquid passage. in the made joins the air passage, as well as the discharge of a continuous less uniform foam bubbles becomes possible has both the advantage of discharging the higher cell density foam.

更に、上記通気路ｂの他端部が上記通液路ａ内に配置した管23内に画成され、端面を気密に閉塞し且つ周囲を露出した状態で上記管先端開口を閉塞した連続気泡構造の多孔質体36により構成される連絡口ｐを設けて上記通液路ａの流れ方向と交差する方向に上記通気路ｂを合流してなるものにあっては、比較的気泡径の小さい多数の泡の吐出が可能となる。   Furthermore, the other end portion of the air passage b is defined in a tube 23 disposed in the liquid passage a, and the open cell is closed with the end face hermetically closed and the periphery is exposed, and the open end of the tube is closed. In the case where the communication port p constituted by the porous body 36 having the structure is provided and the air passage b is joined in the direction intersecting the flow direction of the liquid passage a, the bubble diameter is relatively small. A large number of bubbles can be discharged.

本発明のポンプは、容器体２に装着するとともに、液用シリンダ３及び空気用シリンダ４を備えた固定吸引部Ａと、該固定吸引部Ａに対して上下動可能に設けた作動噴出部Ｂとを備えている。また、作動噴出部Ｂを上下動させることにより容器体２内の液を液用シリンダ３から通液路ａを介して作動噴出部Ｂ上端の吐出口５より吐出するとともに、外気を液用シリンダ３から通気路ｂを介して吐出液中に合流させ、以て空気を分散した吐出液を泡状に吐出する如く構成したものである。   The pump of the present invention is mounted on the container body 2 and has a fixed suction part A having a liquid cylinder 3 and an air cylinder 4 and an operation jet part B provided so as to be movable up and down with respect to the fixed suction part A. And. Further, by moving the working jet B up and down, the liquid in the container body 2 is discharged from the liquid cylinder 3 through the liquid passage a through the discharge port 5 at the upper end of the working jet B and the outside air is discharged from the liquid cylinder. 3 is joined to the discharge liquid through the air passage b, and the discharge liquid in which air is dispersed is discharged in the form of bubbles.

図１に於いて固定吸引部Ａは、容器体２の口頸部外面に嵌合させた装着キャップ６に上端を固定した大径の空気用シリンダ４を容器体２内に垂下しており、また、空気用シリンダ４の底部中央に上端を開口した液用シリンダ３をその下方へ延設している。また、液用シリンダ３の下端部に上端を嵌着した吸い上げ用のパイプ７を容器体２内下端部に垂下させている。   In FIG. 1, the fixed suction part A hangs a large-diameter air cylinder 4 having an upper end fixed to a mounting cap 6 fitted to the outer surface of the mouth and neck of the container body 2 in the container body 2. A liquid cylinder 3 having an upper end opened at the center of the bottom of the air cylinder 4 extends downward. A suction pipe 7 having an upper end fitted to the lower end of the liquid cylinder 3 is suspended from the lower end of the container body 2.

作動噴出部Ｂは、固定吸引部Ａに対して上方付勢状態で上下動可能に組み付けしたもので、上下動させることにより液用シリンダ３内の液及び空気用シリンダ４内の空気が同時に噴出する如く構成したもので、液用シリンダ３に摺動可能に嵌合させた小径の液用ピストン８を下部外周に突設するとともに、空気用シリンダ４に摺動可能に嵌合させた大径の空気用ピストン９の内周縁を上下方向中間部に小幅の上下動が可能に連繋させ、更に、上端を装着キャップ６上方へ突設したステム10を備えている。また、ステム10内上部には上流より下流に一方的に連通する液止め弁11を設けるとともに、ステム10の上端には上記吐出口５付きの押下ヘッド12を嵌着している。   The operation ejection part B is assembled so as to be movable up and down in an upward biased state with respect to the fixed suction part A. By moving up and down, the liquid in the liquid cylinder 3 and the air in the air cylinder 4 are ejected simultaneously. A small-diameter liquid piston 8 slidably fitted to the liquid cylinder 3 is provided on the outer periphery of the lower portion, and a large-diameter slidably fitted to the air cylinder 4. The inner periphery of the air piston 9 is connected to the middle portion in the vertical direction so as to be able to move up and down with a small width, and a stem 10 is provided with an upper end projecting upward from the mounting cap 6. Further, a liquid stop valve 11 unilaterally communicated from the upstream to the downstream is provided in the upper portion of the stem 10, and the pressing head 12 with the discharge port 5 is fitted to the upper end of the stem 10.

空気用ピストン９の内周縁はステム10外周と隙間をあけて小幅の上下動が可能に嵌合させた筒状弁部9aとして構成しており、その下端部をステム10外周より突設したフランジ状の弁座13に気密に圧接して両者で空気吐出弁14を構成している。この空気吐出弁14は図１に示す最上方へ押し上げられている場合には閉塞しており、作動噴出部Ｂを押し下げた際には開弁し、更に、押し下げ状態から上方付勢力により上昇する際には閉塞する如く構成している。また、空気用ピストン９の階段状壁部9bには外気吸入弁15を設けている。尚、16は作動噴出部Ｂを上方へ付勢させるコイルスプリング16を示す。   The inner peripheral edge of the air piston 9 is configured as a cylindrical valve portion 9a that is fitted with a small gap up and down with the outer periphery of the stem 10, and a flange having a lower end projecting from the outer periphery of the stem 10 An air discharge valve 14 is formed by pressure-contacting the valve seat 13 in an airtight manner. The air discharge valve 14 is closed when it is pushed up to the uppermost position shown in FIG. 1, and is opened when the operation ejection portion B is pushed down, and further rises from the pushed-down state by an upward biasing force. In some cases, it is configured to close. An outside air intake valve 15 is provided on the stepped wall portion 9b of the air piston 9. Reference numeral 16 denotes a coil spring 16 that urges the working jet B upward.

押下ヘッド12は、ステム10内上部に下部を嵌着させた嵌合筒17を頂板18裏面より垂設するとともに、頂板18周縁部より二重筒状の内外周壁19，20をステム10外周に隙間をあけて垂設しており、上記空気用ピストン９の内縁の筒状弁部9aの上端部を内周壁19の下端部に気密摺動可能に嵌合させている。また、頂板18下面には先端を開口した横筒21を横設しており、横筒21の基端部を上記嵌合筒17と上記内周壁19との隙間に開口している。更に、横筒21の先端部に別体のノズル22基端部を嵌着してその先端に上記吐出口５を開口している。更に、横筒21内には周囲に隙間をあけるとともに、その基端部を横筒21基端部に気密に嵌着させ、上記嵌合筒17と内周壁19との隙間と内部を連通させた先端面閉塞の管23を嵌着し、この管23の周壁部には周方向複数の透孔24より構成された連絡口ｐを開口している。尚、図中25はそれぞれリブを示す。   The pressing head 12 has a fitting cylinder 17 with a lower part fitted to the upper part of the stem 10 suspended from the back surface of the top plate 18 and double cylindrical inner and outer peripheral walls 19 and 20 from the periphery of the top plate 18 to the outer periphery of the stem 10. The upper end of the cylindrical valve portion 9a at the inner edge of the air piston 9 is fitted to the lower end portion of the inner peripheral wall 19 so as to be airtightly slidable. Further, a horizontal cylinder 21 having an open end is provided on the lower surface of the top plate 18, and a base end portion of the horizontal cylinder 21 is opened in a gap between the fitting cylinder 17 and the inner peripheral wall 19. Further, a separate nozzle 22 base end portion is fitted to the distal end portion of the horizontal cylinder 21 and the discharge port 5 is opened at the distal end thereof. Further, a gap is formed in the periphery of the horizontal cylinder 21, and the base end portion thereof is hermetically fitted to the base end portion of the horizontal cylinder 21, so that the clearance between the fitting cylinder 17 and the inner peripheral wall 19 is communicated with the inside. A tube 23 with a closed end face is fitted, and a communication port p constituted by a plurality of circumferential holes 24 is opened in the peripheral wall portion of the tube 23. In the figure, reference numeral 25 denotes a rib.

そして、液用シリンダ３内からステム10を通り、嵌合筒17内より管23周囲の横筒21内を通りノズル22の吐出口５に至る上記通液路ａを形成している。また、空気用シリンダ４から空気吐出弁14を介して、ステム10と筒状弁部9aとの隙間、ステム10と内周壁19との隙間、嵌合筒17と内周壁19との隙間、横筒21に穿設した連通孔26を通り、管23内から上記連絡口ｐより通液路ａに合流する上記通気路ｂを形成している。   The liquid passage a is formed from the liquid cylinder 3 through the stem 10 and from the fitting cylinder 17 through the horizontal cylinder 21 around the pipe 23 to the discharge port 5 of the nozzle 22. In addition, a gap between the stem 10 and the tubular valve portion 9a, a gap between the stem 10 and the inner peripheral wall 19, a gap between the fitting cylinder 17 and the inner peripheral wall 19, and the lateral side via the air discharge valve 14 from the air cylinder 4 The air passage b is formed through the communication hole 26 formed in the cylinder 21 and joined from the pipe 23 to the liquid passage a through the communication port p.

本発明の前提となる構成では上記通気路ｂ他端部を上記通液路ａ中央に位置させるとともに、上記通気路他端部周囲に連絡口ｐを設けて、通液路ａの流れ方向と交差方向に通気路ｂを合流させている。その一形態として、上記した如く管23の外周に周方向等間隔に穿設した複数の透孔24よりなる連絡口ｐを開口している。この様に構成することにより、連絡口ｐより噴出した空気が流れる液により剪断されて順次多数の気泡として液中に分散されて吐出口５より泡状に吐出される。特に比較的高粘度の液を吐出する際に感触の良い、取り扱いの行い易い、ふわっとした状態の吐出が行えるものである。尚、通液路ａの流れ方向と交差方向とは、必ずしも直行方向に限らず、やや傾斜した角度での開口方向であっても良い。尚、図中27は、作動噴出部Ｂが最上昇位置にある場合に上端のシール部がその上下を遮断する公知の棒状体を示す。 In the configuration which is a premise of the present invention, the other end of the air passage b is positioned at the center of the liquid passage a, and a communication port p is provided around the other end of the air passage so that the flow direction of the liquid passage a The air passage b is merged in the intersecting direction. As one form thereof, as described above, the communication port p including a plurality of through holes 24 formed at equal intervals in the circumferential direction is opened on the outer periphery of the tube 23. By configuring in this way, the air ejected from the communication port p is sheared by the flowing liquid and is sequentially dispersed in the liquid as a large number of bubbles and discharged from the discharge port 5 in the form of bubbles. In particular, when discharging a liquid having a relatively high viscosity, it is easy to handle and can be discharged in a soft state. Note that the flow direction and the intersecting direction of the liquid passage a are not necessarily limited to the orthogonal direction, and may be an opening direction at a slightly inclined angle. In the figure, reference numeral 27 denotes a known rod-like body whose upper and lower sealing portions block the upper and lower sides when the operation ejection portion B is at its highest position.

上記の如く構成したポンプを使用する場合について一例を説明すると、図１の状態から予め作動噴出部Ｂを数回上下動させて液用シリンダ３内に容器体２の液を導入しておき、その状態から押下ヘッド12を押し下げると、液用ピストン８が下降して液用シリンダ３内が加圧され、それに伴って液用シリンダ３内の液は液止め弁11を開いて通液路ａより吐出口５に向けて噴出される。一方、空気用シリンダ４内が加圧され、それに伴って空気用シリンダ４内の空気は開いた空気吐出弁14から通気路ｂを通り管23の連絡口ｐより液と合流する如く噴出される。そして、合流部分で形成された気泡が分散された液が吐出口５より泡状に吐出される。   An example of the case of using the pump configured as described above will be described below. The liquid in the container body 2 is introduced into the liquid cylinder 3 by moving the working ejection part B up and down several times in advance from the state of FIG. When the press-down head 12 is pushed down from this state, the liquid piston 8 is lowered to pressurize the liquid cylinder 3, and the liquid in the liquid cylinder 3 opens the liquid stop valve 11 along with the liquid passage a. Further, it is ejected toward the discharge port 5. On the other hand, the inside of the air cylinder 4 is pressurized, and accordingly, the air in the air cylinder 4 is ejected from the open air discharge valve 14 through the ventilation path b so as to join the liquid through the connection port p of the pipe 23. . Then, the liquid in which bubbles formed at the merging portion are dispersed is discharged from the discharge port 5 in the form of bubbles.

作動噴出部Ｂの押圧を解除するとコイルスプリング16の作用で作動噴出部Ｂは上昇する。この際、液用シリンダ３内は負圧化するため液止め弁11が閉じ、容器体２内の液がパイプ７を介して液用シリンダ３内に吸入される。一方、空気吐出弁14が閉じて空気用シリンダ４内が負圧化するため、外気吸入弁15から外気が空気用シリンダ４内に吸引される。   When the pressing of the working jet part B is released, the working jet part B rises by the action of the coil spring 16. At this time, since the inside of the liquid cylinder 3 becomes negative pressure, the liquid stop valve 11 is closed, and the liquid in the container body 2 is sucked into the liquid cylinder 3 through the pipe 7. On the other hand, since the air discharge valve 14 is closed and the pressure in the air cylinder 4 becomes negative, the outside air is sucked into the air cylinder 4 from the outside air intake valve 15.

図４は通気路ｂの他端部が、通液路ａ内中央部に配置した端面閉塞の管23内に画成され、該管の周壁部に周方向等間隔に複数の透孔を穿設してなる第１透孔群28と、該第１透孔群28と長手方向間隔をあけ且つ第１透孔群28と周方向ズレた位置の第２透孔群29とで上記連絡口ｐを構成した例を示すものである。例えば第１透孔群28とその先方にある第２透孔群29とは、それぞれの各透孔24間の中心角が等しく、それぞれズレた位置に存在するものである。この様に構成することにより気泡相互が密着して大きな気泡となったり、大小取り混ぜた不均一な泡状となることを防止するとともに、泡密度の高い分散構造となる。 In FIG. 4, the other end of the air passage b is defined in an end-face-closed tube 23 arranged at the center in the liquid passage a, and a plurality of through holes are formed at equal intervals in the circumferential direction on the peripheral wall of the tube. The first through hole group 28 and the second through hole group 29 that are spaced apart from the first through hole group 28 in the longitudinal direction and are displaced from the first through hole group 28 in the circumferential direction. The example which comprised p is shown. For example, the first through-hole group 28 and the second through-hole group 29 ahead thereof have the same center angle between the respective through-holes 24 and are present at positions shifted from each other. By configuring in this way, it is possible to prevent the bubbles from adhering to form large bubbles or to form a non-uniform foam that is mixed in large and small, and to have a dispersed structure with a high foam density.

図示例では管23は先端を開口し、その先端部に連絡口形成用の第１，第２の各先端部材30，31を嵌着固定している。第１先端部材30は、周囲に長手方向に沿って複数設けたリブ25により隙間をあけて管23先端部内周に嵌着固定した固定筒32を備え、該固定筒32の外周先端部より管23先端面と後面を気密に当接し且つ周方向間隔をあけて複数の凹溝を放射状に形成したフランジ33を延設し、更に、フランジ周縁より前方へ連結筒部34を延設している。そして、上記複数の凹溝と管23先端面とでそれぞれ形成する透孔により第１透孔群28を形成している。また、第２先端部材31は、上記連結筒部34内に同様のリブ25により液の通過が可能な隙間をあけて嵌着させた連結棒部35の先端より、上記同様のフランジ33を延設している。こちらのフランジ33の各凹溝は第１先端部材30の各凹溝１間の正面視中央位置にずらして設けている。   In the illustrated example, the tube 23 is opened at the tip, and the first and second tip members 30 and 31 for forming the communication port are fitted and fixed to the tip. The first tip member 30 includes a fixed cylinder 32 that is fitted and fixed to the inner periphery of the distal end of the tube 23 with a plurality of ribs 25 provided around the circumference in the longitudinal direction. 23 A flange 33 is formed in which a front end surface and a rear surface are in airtight contact with each other and a plurality of grooves are radially formed at intervals in the circumferential direction. Further, a connecting cylindrical portion 34 is extended forward from the periphery of the flange. . And the 1st through-hole group 28 is formed by the through-hole which each forms with the said several groove and the pipe | tube 23 front end surface. Further, the second tip member 31 extends the same flange 33 from the tip of the connecting rod portion 35 fitted in the connecting cylinder portion 34 with a gap through which the liquid can be passed by the same rib 25. Has been established. The concave grooves of the flange 33 are provided so as to be shifted to the center position in front view between the concave grooves 1 of the first tip member 30.

図５及び図６は通気路ｂの他端部が上記通液路ａ内中央部に配置した管23内に画成され、端面を気密に閉塞し且つ周囲を露出した状態で上記管23先端開口を閉塞した連続気泡構造の多孔質体36で上記連絡口ｐを構成した例を示すものである。図示例では、管23の先端を開口し、その先端部内に周囲を密接して嵌着固定した小径部36a の先端に、後面を管23先端部に密接した大径部36b を延設した上記多孔質体36を設け、この多孔質体36の端面にシール材37を固着させている。多孔質体36としては、合成樹脂の発泡体，フェルト，焼結体等種々の材質を使用できる。また、シール材も合成樹脂等により形成することができ、接着、融着等の適宜固着手段により固着させることができる。 5 and 6 show that the other end of the air passage b is defined in the tube 23 disposed in the central portion of the liquid passage a, and the end face of the tube 23 is closed in an airtight manner and the periphery is exposed. An example in which the communication port p is constituted by a porous body 36 having an open cell structure in which the opening is closed is shown. In the illustrated example, the end of the tube 23 is opened, and the large-diameter portion 36b whose rear surface is in close contact with the distal end portion of the tube 23 is extended to the distal end of the small-diameter portion 36a that is closely fitted and fixed inside the distal end portion. A porous body 36 is provided, and a sealing material 37 is fixed to the end face of the porous body 36. As the porous body 36, various materials such as a synthetic resin foam, felt, and sintered body can be used. Further, the sealing material can also be formed of a synthetic resin or the like, and can be fixed by appropriate fixing means such as adhesion and fusion.

参考例のポンプの半断面図である。（参考例１） It is a half sectional view of a pump of a reference example. ( Reference Example 1) 参考例の要部拡大断面図である。（参考例１）It is a principal part expanded sectional view of a reference example . (Reference Example 1) 参考例の要部拡大断面図である。（参考例１）It is a principal part expanded sectional view of a reference example . ( Reference Example 1) 本発明ポンプの要部拡大断面図である。（実施例１） It is a principal part expanded sectional view of this invention pump . Example 1 本発明ポンプの要部拡大断面図である。（実施例２）It is a principal part expanded sectional view of this invention pump. (Example 2) 同実施例の要部拡大断面図である。（実施例２）It is a principal part expanded sectional view of the Example. (Example 2)

２…液用シリンダ，３…空気用シリンダ，４…吐出口，23…管，24…透孔，
28…第１透孔群，29…第２透孔群，36…多孔質体，Ａ…固定吸引部，
Ｂ…作動噴出部，ａ…通液路，ｂ…通気路，ｐ…連絡口 2 ... Cylinder for liquid, 3 ... Cylinder for air, 4 ... Discharge port, 23 ... Pipe, 24 ... Through hole,
28 ... 1st through-hole group, 29 ... 2nd through-hole group, 36 ... Porous body, A ... Fixed suction part,
B ... Working jet part, a ... Liquid passage, b ... Ventilation path, p ... Contact port

Claims (2)

液用シリンダ３及び空気用シリンダ４を備えた固定吸引部Ａと、該固定吸引部Ａに上下動可能に装着した吐出口５付きの作動噴出部Ｂとを備え、上記作動噴出部の上下動により上記液用シリンダ内の液及び上記空気用シリンダ内の空気を同時に噴出可能に構成したポンプであって、上記液用シリンダから上記吐出口に至る通液路ａ及び上記空気用シリンダに一端を連通して他端を上記通液路内に合流させた通気路ｂを有し、上記通気路ｂの他端部が上記通液路ａ内に配置した端面閉塞の管23内に画成され、該管の周壁部に周方向等間隔に複数の透孔を穿設してなる第１透孔群28と、該第１透孔群と長手方向間隔をあけ且つ周方向にズレた位置の第２透孔群29とからなる連絡口ｐを設けて上記通液路の流れ方向と交差する方向に上記通気路を合流してなることを特徴とするポンプ。 A fixed suction part A provided with a liquid cylinder 3 and an air cylinder 4; and an operation jet part B with a discharge port 5 mounted on the fixed suction part A so as to be movable up and down. The pump is configured to be capable of simultaneously ejecting the liquid in the liquid cylinder and the air in the air cylinder, one end of the fluid passage a extending from the liquid cylinder to the discharge port and the air cylinder. The vent path b is connected to the other end into the liquid passage, and the other end of the vent path b is defined in the end-blocked pipe 23 disposed in the liquid passage a. A first through hole group formed by drilling a plurality of through holes at equal circumferential intervals in the peripheral wall portion of the tube, and at a position spaced apart from the first through hole group in the longitudinal direction and shifted in the circumferential direction. A communication port p consisting of the second through hole group 29 is provided, and the air passage is merged in a direction intersecting the flow direction of the liquid passage Pump characterized by comprising Te. 液用シリンダ３及び空気用シリンダ４を備えた固定吸引部Ａと、該固定吸引部Ａに上下動可能に装着した吐出口５付きの作動噴出部Ｂとを備え、上記作動噴出部の上下動により上記液用シリンダ内の液及び上記空気用シリンダ内の空気を同時に噴出可能に構成したポンプであって、上記液用シリンダから上記吐出口に至る通液路ａ及び上記空気用シリンダに一端を連通して他端を上記通液路内に合流させた通気路ｂを有し、上記通気路ｂの他端部が上記通液路ａ内に配置した管23内に画成され、端面を気密に閉塞し且つ周囲を露出した状態で上記管先端開口を閉塞した連続気泡構造の多孔質体36により構成される連絡口ｐを設けて上記通液路ａの流れ方向と交差する方向に上記通気路ｂを合流してなることを特徴とするポンプ。A fixed suction part A provided with a liquid cylinder 3 and an air cylinder 4; and an operation jet part B with a discharge port 5 mounted on the fixed suction part A so as to be movable up and down. The pump is configured to be capable of simultaneously ejecting the liquid in the liquid cylinder and the air in the air cylinder, one end of the fluid passage a extending from the liquid cylinder to the discharge port and the air cylinder. The air passage b is connected to the other end of the fluid passage, and the other end of the air passage b is defined in a pipe 23 disposed in the fluid passage a. A communication port p constituted by a porous body 36 having an open cell structure in which the tube tip opening is closed in a state of being airtightly closed and the periphery is exposed, is provided in the direction crossing the flow direction of the liquid passage a. A pump characterized by joining the air passage b.
JP2003284146A 2003-07-31 2003-07-31 pump Expired - Fee Related JP4318169B2 (en)

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