JPH0942160A - Tube pump - Google Patents
Tube pumpInfo
- Publication number
- JPH0942160A JPH0942160A JP22849595A JP22849595A JPH0942160A JP H0942160 A JPH0942160 A JP H0942160A JP 22849595 A JP22849595 A JP 22849595A JP 22849595 A JP22849595 A JP 22849595A JP H0942160 A JPH0942160 A JP H0942160A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- circular
- rubber
- viscoelastic
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】チューブを圧迫して液体を送る形
式のチューブポンプのチューブの変形を防止して、吐出
量の精度を向上させ、又、耐久性を向上せしめんとする
ものである。BACKGROUND OF THE INVENTION This invention is intended to prevent the deformation of the tube of a tube pump of the type that compresses the tube and sends a liquid, thereby improving the accuracy of the discharge amount and improving the durability.
【０００２】[0002]
【従来の技術】チューブを、回転ローラーで圧迫しなが
らスクイーズして液体を絞り出した。又は、円形の空洞
部を有する部材の円形部分にチューブを添わせて、チュ
ーブの内側に配置した遊動可能なリング状部材の内側に
添って偏芯部材を回転させて、リング状部材でチューブ
を順次圧迫して液体を絞り出した。2. Description of the Related Art A tube is squeezed while being pressed by a rotating roller to squeeze out the liquid. Alternatively, the tube is added to the circular portion of the member having the circular hollow portion, the eccentric member is rotated along the inside of the movable ring-shaped member arranged inside the tube, and the tube is formed by the ring-shaped member. The liquid was squeezed out by applying pressure in sequence.
【０００３】[0003]
【発明が解決しょうとする課題】チューブの一端を固定
しておいて、回転ローラーで強くチューブを圧迫しなが
らスクイーズする場合は、スクイーズする力によって、
チューブが引張られて変形し、吐出量が変化する、或い
は、チューブが劣化して耐久性が低下する。又、チュー
ブをリング状に構成して、チューブの内側をリング状部
材を介して間接的にチューブを順次圧迫する場合に於い
ても、順次に圧迫していく方向にチューブが引張られて
前記と同様の吐出量の変化及びチューブの劣化が起こ
る。When one end of the tube is fixed and the tube is squeezed while being strongly pressed by the rotating roller, the squeezing force causes
The tube is pulled and deformed, and the discharge amount changes, or the tube deteriorates and the durability decreases. Even when the tube is formed in a ring shape and the inside of the tube is indirectly compressed through the ring-shaped member, the tube is pulled in the direction in which it is compressed. Similar changes in the discharge amount and deterioration of the tube occur.
【０００４】[0004]
【課題を解決する為の手段】半円形より大きい円形の空
洞部を有する部材の空洞部の周辺部分をゴム状の粘弾性
部材で構成し、該空洞部の周辺部分にチューブを添わ
せ、該チューブの内側に、該ゴム状の粘弾性部材よりも
磨擦の少ない材質を用いた遊動可能な円弧を有する部材
を配置して、該円弧を有する部材の内側に添って回転体
を回転させ、該円弧を有する部材で該チューブを順次圧
迫して液体を絞り出す。A member having a circular cavity larger than a semicircle has a peripheral portion of the cavity formed of a rubber-like viscoelastic member, and a tube is attached to the peripheral portion of the cavity. Inside the tube, a member having a movable arc using a material that is less rubbed than the rubber-like viscoelastic member is arranged, and the rotating body is rotated along the inside of the member having the arc, The liquid is squeezed by sequentially pressing the tube with a member having an arc.
【０００５】[0005]
【作用】円弧を有する部材の円弧運動によって、チュー
ブを空洞部の周辺部分に向かって直角方向に圧迫し、し
かも、空洞部の周辺部分はゴム状粘弾性部材で構成され
ているので、チューブと空洞部の間は滑り難く、従って
チューブは静止し易い状態を保つ。一方で、チューブの
内側は、空洞部の周辺部分よりも磨擦が少ない部材に接
触しているから、チューブと円弧を有する部材の間は滑
り易いのでチューブは移動し難い。従って、ゴム状の粘
弾性部材と円弧を有する部材の各々の磨擦係数を適当に
選択すれば、円弧を有する部材の円弧運動によってチュ
ーブが引張られるのを防止することが出来る。By the circular motion of the member having the circular arc, the tube is pressed toward the peripheral portion of the hollow portion at a right angle, and the peripheral portion of the hollow portion is made of a rubber-like viscoelastic member. There is no slippage between the cavities, so the tube remains stationary. On the other hand, the inner side of the tube is in contact with a member that is less rubbed than the peripheral portion of the cavity, so that the tube is easily slipped between the member having the arc and the tube is difficult to move. Therefore, by appropriately selecting the friction coefficient of each of the rubber-like viscoelastic member and the member having the arc, it is possible to prevent the tube from being pulled by the arc motion of the member having the arc.
【０００６】[0006]
【実施例】本発明の実施例をEXAMPLES Examples of the present invention
【図１】[Figure 1]
【図２】において説明する。2 will be described.
【図１】は、チューブをＵ字形に形成した場合の働作説
明図、FIG. 1 is an explanatory view of the operation when the tube is formed in a U shape,
【図２】は、チューブを円形に形成した場合の働作説明
図である。FIG. 2 is an explanatory diagram of an operation when the tube is formed in a circular shape.
【図１】について説明する。 （イ）Ｕ字形空洞部１を有する基板２のＵ字形空洞部１
に添わせてゴム状の粘弾性部材３をＵ字形にとり付け
る。 （ロ）粘弾性部材３に添わせてチューブ４を配置する。 （ハ）チューブ４の内側に粘弾性部材３よりも磨擦係数
の小さい材質より成る円弧部材５を配置する。 （ニ）円弧部材５には、略中央部に支持孔６を設ける。 （ホ）円弧部材５は、支持孔６を介して、基板２に固着
された支軸７に遊動自在にとり付ける。 （ヘ）円弧部材５の内側に、モータ（図示せず）によっ
て回転する偏芯軸８を配置する。 （ト）チューブ４の吐出部９に逆止弁１０をとり付け
る。 以上、（イ）（ロ）（ハ）（ニ）（ホ）（ヘ）（ト）に
示す構成であるから、偏芯軸８を矢印方向に回転させる
ことによって、円弧部材５が支軸７を支点にして円弧運
動を起し、チューブ４が順次圧迫されて、チューブ４の
中の液体が吐出部９の方向に絞り出される。尚、逆止弁
１０が設けられてあるから、偏芯軸８が円弧部材５に接
触していない状態に於ても液体は逆流しない。次に実施
例FIG. 1 will be described. (B) U-shaped cavity 1 of substrate 2 having U-shaped cavity 1
The rubber-like viscoelastic member 3 is attached in a U shape. (B) The tube 4 is arranged along with the viscoelastic member 3. (C) An arc member 5 made of a material having a smaller friction coefficient than the viscoelastic member 3 is arranged inside the tube 4. (D) The circular arc member 5 is provided with a support hole 6 at a substantially central portion. (E) The arc member 5 is movably attached to the support shaft 7 fixed to the substrate 2 via the support hole 6. (F) The eccentric shaft 8 which is rotated by a motor (not shown) is arranged inside the arc member 5. (G) The check valve 10 is attached to the discharge part 9 of the tube 4. As described above, because of the configurations shown in (a), (b), (c), (d), (e), (f), and (g), the arc member 5 is rotated by the eccentric shaft 8 in the direction of the arrow. The circular movement is caused with the fulcrum as a fulcrum, the tube 4 is sequentially pressed, and the liquid in the tube 4 is squeezed out toward the discharge portion 9. Since the check valve 10 is provided, the liquid does not flow backward even when the eccentric shaft 8 is not in contact with the arc member 5. Next Example
【図２】について説明する。FIG. 2 will be described.
【図２】は、小型化する為にチューブをコイル状に形成
した場合である。尚、FIG. 2 shows a case where the tube is formed in a coil shape for downsizing. still,
【図２】に於ては、[Fig. 2]
【図１】と同一機能を有する部材の符号は1 has the same function as that of FIG.
【図１】と同一にした。 （チ）円形空洞部１１を有するゴム状の粘弾性基板１２
の円形空洞部１１に添ってチューブ４をコイル状に形成
して配置する。 （リ）チューブ４の内側に、支軸７を有し、粘弾性基板
１２よりも磨擦係数の少ないリング部材１３を配置す
る。 （ヌ）リング部材１３は、支軸７を介して粘弾性基板１
２に設けた支持孔６に遊動自在にとり付ける。 （ル）リング部材１３の内側に、モータ（図示せず）に
よって回転する偏芯軸８を配置する。 以上、（チ）（リ）（ヌ）（ル）に示す構成であるか
ら、偏芯軸８を回転させるとSame as FIG. (H) Rubber-like viscoelastic substrate 12 having circular cavity 11
The tube 4 is formed in a coil shape and arranged along the circular hollow portion 11. (I) Inside the tube 4, the ring member 13 having the support shaft 7 and having a smaller friction coefficient than the viscoelastic substrate 12 is arranged. The (nu) ring member 13 is provided with the viscoelastic substrate 1 via the support shaft 7.
It is attached to the support hole 6 provided in 2 freely. (E) The eccentric shaft 8 which is rotated by a motor (not shown) is arranged inside the ring member 13. As described above, since the configurations shown in (H), (L), (N), and (L) are used, when the eccentric shaft 8 is rotated
【図１】の説明と同様の働作によって液体が絞り出され
る。尚、The liquid is squeezed out by an action similar to that described in FIG. still,
【図２】の実施例では、小型化の為にチューブ４をコイ
ル状に形成すると共に、粘弾性部材３を基板２と一体に
構成して粘弾性基板１２とした。以上の構成であるか
ら、チューブ４の外側は、磨擦の大きいゴム状の粘弾性
材料で作られたＵ字形空洞部１又は円形空洞部１１の直
径方向に圧迫されているからチューブ４は移動し難く、
又、円弧運動する円弧部材５又はリング部材１３がＵ字
形空洞部１又は円形空洞部１１よりも磨擦が少い材料で
作られているから、チューブ４は、円弧部材５又はリン
グ部材１３の円弧運動に追随して移動し難く、従ってチ
ューブ４は一方向に引張られることなく安定に保持され
る。又、チューブ４が圧迫される部分はゴム状の粘弾性
材料であるから、チューブ４には無理な力が加わらな
い。In the embodiment shown in FIG. 2, the tube 4 is formed in a coil shape for downsizing, and the viscoelastic member 3 is integrated with the substrate 2 to form a viscoelastic substrate 12. With the above configuration, the tube 4 moves because the outside of the tube 4 is pressed in the diametrical direction of the U-shaped cavity 1 or the circular cavity 11 made of a rubber-like viscoelastic material with large abrasion. Difficult,
Further, since the circular arc member 5 or the ring member 13 that moves in a circular arc is made of a material having less friction than the U-shaped cavity portion 1 or the circular cavity portion 11, the tube 4 is the circular arc member 5 or the circular member member 13. It is difficult for the tube 4 to move following the movement, so that the tube 4 is stably held without being pulled in one direction. Moreover, since the portion where the tube 4 is pressed is a rubber-like viscoelastic material, an unreasonable force is not applied to the tube 4.
【０００７】[0007]
【効果】チューブが引張られて変形することがないの
で、吐出量の変化及びチューブの劣化を防止出来てチユ
ーブポンプの耐久性を向上させることが出来る。又、ゴ
ム状の粘弾性部材の弾性を適当に選択すれば、チユーブ
を無理に押しつぶす力が加わらないのでチユーブの劣化
を防止出来て耐久性を向上させることが出来る。[Effect] Since the tube is not deformed by being pulled, it is possible to prevent the change of the discharge amount and the deterioration of the tube and improve the durability of the tube pump. Further, if the elasticity of the rubber-like viscoelastic member is properly selected, the force for crushing the tube is not applied, so that the deterioration of the tube can be prevented and the durability can be improved.
【図１】本発明の実施例を示す一部切欠断面で表した働
作説明図である。FIG. 1 is an explanatory view of an operation showing a partially cutaway cross section showing an embodiment of the present invention.
【図２】本発明の実施例を示す一部切欠断面で表した働
作説明図である。FIG. 2 is an operation explanatory view showing a partially cutaway cross section showing an embodiment of the present invention.
Claims (1)
ューブポンブに於て、 （イ）半円形より大きい円形の空洞部を有する部材の、
該空洞部の周辺部分に添わせてチューブを配置する。 （ロ）該空洞部の周辺部分は、ゴム状の粘弾性部材で構
成する。 （ハ）該チューブの内側に、遊動可能な状態にした円弧
を有する部材を配置する。 （ニ）該円弧を有する部材は、該ゴム状の粘弾性部材よ
りも磨擦係数の小さい部材で構成する。 （ホ）該円弧を有する部材の内側に回転体を配置する。 以上、（イ）（ロ）（ハ）（ニ）（ホ）によって構成さ
れたチューブポンプ。1. A tube pump of a type for compressing a tube to send a liquid, comprising: (a) a member having a circular cavity larger than a semicircle,
The tube is arranged along the peripheral portion of the cavity. (B) The peripheral portion of the cavity is made of a rubber-like viscoelastic member. (C) Inside the tube, a member having an arc that is allowed to move is arranged. (D) The member having the arc is composed of a member having a smaller friction coefficient than the rubber-like viscoelastic member. (E) The rotating body is arranged inside the member having the arc. Above, the tube pump comprised by (a) (b) (c) (d) (e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22849595A JP3795938B2 (en) | 1995-08-01 | 1995-08-01 | Tube pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22849595A JP3795938B2 (en) | 1995-08-01 | 1995-08-01 | Tube pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0942160A true JPH0942160A (en) | 1997-02-10 |
| JP3795938B2 JP3795938B2 (en) | 2006-07-12 |
Family
ID=16877360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22849595A Expired - Lifetime JP3795938B2 (en) | 1995-08-01 | 1995-08-01 | Tube pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3795938B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6872059B2 (en) | 2001-09-12 | 2005-03-29 | Seiko Epson Corporation | Liquid discharger and apparatus including the liquid discharger |
| JP2007205176A (en) * | 2006-01-31 | 2007-08-16 | Seiko Epson Corp | Tube pump and liquid jetting device |
| JP2013177897A (en) * | 2008-02-14 | 2013-09-09 | Seiko Epson Corp | Tube unit, control unit and micropump |
| JP2014101841A (en) * | 2012-11-21 | 2014-06-05 | Aquatech Co Ltd | Tube pump |
| JP2014176440A (en) * | 2013-03-14 | 2014-09-25 | Aquatech Co Ltd | Chemical injection device |
-
1995
- 1995-08-01 JP JP22849595A patent/JP3795938B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6872059B2 (en) | 2001-09-12 | 2005-03-29 | Seiko Epson Corporation | Liquid discharger and apparatus including the liquid discharger |
| JP2007205176A (en) * | 2006-01-31 | 2007-08-16 | Seiko Epson Corp | Tube pump and liquid jetting device |
| JP2013177897A (en) * | 2008-02-14 | 2013-09-09 | Seiko Epson Corp | Tube unit, control unit and micropump |
| JP2014101841A (en) * | 2012-11-21 | 2014-06-05 | Aquatech Co Ltd | Tube pump |
| JP2014176440A (en) * | 2013-03-14 | 2014-09-25 | Aquatech Co Ltd | Chemical injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3795938B2 (en) | 2006-07-12 |
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