JP2011207189A5 - - Google Patents
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- JP2011207189A5 JP2011207189A5 JP2010079886A JP2010079886A JP2011207189A5 JP 2011207189 A5 JP2011207189 A5 JP 2011207189A5 JP 2010079886 A JP2010079886 A JP 2010079886A JP 2010079886 A JP2010079886 A JP 2010079886A JP 2011207189 A5 JP2011207189 A5 JP 2011207189A5
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- pressure
- self
- liquid
- receiving plate
- sealing unit
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Description
本発明の自己封止ユニットは、液体が流通する液体流路が形成されると共に、前記液体流路を開放又は閉鎖する弁体が設けられた圧力室がその表面に形成された自己封止ユニット本体と、前記圧力室を封止し、かつ、前記圧力室に作用する負圧に基づいて前記圧力室側に変位し、この変位を前記弁体に伝達することにより前記弁体を移動させて前記液体流路を開放させるフィルムとを備えた自己封止ユニットであって、前記圧力室に臨み、前記フィルムとは固着されずに前記フィルムの前記変位を前記弁体に伝達する受圧板が設けられ、該受圧板は、その基端部が前記自己封止ユニット本体に固定されて、その一端側が揺動可能であることを特徴とする。本発明においては、受圧板とフィルムとが固着されていないことから、フィルムが圧力に応じて自由に動くことができる。これにより、フィルムに反力が作用することによる作動圧のばらつき要因を減少できる。かつ、受圧板が一端側が揺動可能ないわゆる片持ち構造とされていることから、受圧板とフィルムとが固着されていなくても受圧板が支持されて姿勢が安定する。従って、本発明の自己封止ユニットは、所望の作動圧で弁体を作動できる。
The self-sealing unit of the present invention is a self-sealing unit in which a liquid channel through which liquid flows is formed and a pressure chamber provided with a valve body for opening or closing the liquid channel is formed on the surface thereof The main body and the pressure chamber are sealed and displaced to the pressure chamber side based on the negative pressure acting on the pressure chamber, and the valve body is moved by transmitting this displacement to the valve body. A self-sealing unit comprising a film for opening the liquid flow path, and a pressure receiving plate that faces the pressure chamber and transmits the displacement of the film to the valve body without being fixed to the film. The pressure receiving plate is characterized in that its base end is fixed to the self-sealing unit main body and its one end is swingable. In the present invention, since the pressure receiving plate and the film are not fixed, the film can freely move according to the pressure. Thereby, the dispersion | variation factor of the working pressure by reaction force acting on a film can be reduced. In addition, since the pressure receiving plate has a so-called cantilever structure in which one end side can swing, the pressure receiving plate is supported and the posture is stabilized even if the pressure receiving plate and the film are not fixed. Therefore, the self-sealing unit of the present invention can operate the valve body at a desired operating pressure.
Claims (5)
前記圧力室を封止し、かつ、前記圧力室に作用する負圧に基づいて前記圧力室側に変位し、この変位を前記弁体に伝達することにより前記弁体を移動させて前記液体流路を開放させるフィルムとを備えた自己封止ユニットであって、
前記圧力室に臨み、前記フィルムとは固着されずに前記フィルムの前記変位を前記弁体に伝達する受圧板が設けられ、
該受圧板は、その基端部が前記自己封止ユニット本体に固定されて、その一端側が揺動可能であることを特徴とする自己封止ユニット。 A self-sealing unit main body formed with a pressure chamber provided with a valve body for forming a liquid flow path through which the liquid flows and a valve body for opening or closing the liquid flow path;
The pressure chamber is sealed and displaced to the pressure chamber side based on the negative pressure acting on the pressure chamber, and the displacement is transmitted to the valve body to move the valve body to move the liquid flow. A self-sealing unit comprising a film for opening a path,
A pressure receiving plate that faces the pressure chamber and transmits the displacement of the film to the valve body without being fixed to the film is provided,
The pressure-receiving plate has a base end fixed to the self-sealing unit body, and one end of the pressure-receiving plate can swing.
前記圧力室の底面には、前記フィルムに向かって、前記受圧板よりも前記フィルム側に向かって突出すると共に、前記受圧板の前記軸部に隣接した領域の、前記軸部の長手方向両端側を挟むように一対の突出部材が設けられ、
該一対の突出部材と、前記圧力室上の前記フィルムとが固着されて前記軸部を軸支することを特徴とする請求項１記載の自己封止ユニット。 The pressure receiving plate has a shaft portion on the base end side,
The bottom surface of the pressure chamber protrudes toward the film side of the pressure receiving plate toward the film, and in the region adjacent to the shaft portion of the pressure receiving plate, both ends in the longitudinal direction of the shaft portion A pair of projecting members are provided so as to sandwich the
The self-sealing unit according to claim 1, wherein the pair of projecting members and the film on the pressure chamber are fixed to support the shaft portion.
及び、液体を噴射するノズル開口と、該ノズル開口に連通すると共に、前記自己封止ユニットの液体流路と連通する流路内の圧力発生室に圧力変化を生じさせて、前記ノズル開口から液体を噴射させる圧力発生手段とを備えた液体噴射ヘッドを備えたことを特徴とする液体噴射ヘッドユニット。 Self-sealing unit according to claims 1-3,
And a nozzle opening for injecting liquid, and a pressure change in the pressure generation chamber in the flow path communicating with the liquid flow path of the self-sealing unit, and communicating with the nozzle opening, and the liquid from the nozzle opening A liquid ejecting head unit comprising a liquid ejecting head including pressure generating means for ejecting the liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010079886A JP5578316B2 (en) | 2010-03-30 | 2010-03-30 | Self-sealing unit, liquid ejecting head unit, and liquid ejecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010079886A JP5578316B2 (en) | 2010-03-30 | 2010-03-30 | Self-sealing unit, liquid ejecting head unit, and liquid ejecting apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011207189A JP2011207189A (en) | 2011-10-20 |
| JP2011207189A5 true JP2011207189A5 (en) | 2013-04-04 |
| JP5578316B2 JP5578316B2 (en) | 2014-08-27 |
Family
ID=44938788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010079886A Active JP5578316B2 (en) | 2010-03-30 | 2010-03-30 | Self-sealing unit, liquid ejecting head unit, and liquid ejecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5578316B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5862151B2 (en) | 2011-09-22 | 2016-02-16 | セイコーエプソン株式会社 | Printer and its print head moving mechanism |
| JP6003052B2 (en) * | 2011-12-13 | 2016-10-05 | セイコーエプソン株式会社 | Valve unit, method for manufacturing valve unit, liquid ejecting unit, and liquid ejecting apparatus |
| JP6103020B2 (en) * | 2015-11-06 | 2017-03-29 | セイコーエプソン株式会社 | Liquid ejector |
| JP7059577B2 (en) | 2017-11-14 | 2022-04-26 | セイコーエプソン株式会社 | Liquid tank |
| JP2020138423A (en) * | 2019-02-28 | 2020-09-03 | セイコーエプソン株式会社 | Liquid discharge head, and liquid discharge device |
| JP7424101B2 (en) | 2020-02-25 | 2024-01-30 | セイコーエプソン株式会社 | Pressure adjustment unit, liquid jet head, and liquid jet device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4032953B2 (en) * | 2002-01-22 | 2008-01-16 | セイコーエプソン株式会社 | Liquid ejector |
| JP4600328B2 (en) * | 2006-03-27 | 2010-12-15 | セイコーエプソン株式会社 | Liquid ejector |
| JP2008238465A (en) * | 2007-03-26 | 2008-10-09 | Seiko Epson Corp | Valve unit and fluid jet apparatus |
-
2010
- 2010-03-30 JP JP2010079886A patent/JP5578316B2/en active Active
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