JP2007278701A - Liquid storage vessel for liquid weighing apparatus, and liquid weighing apparatus with the same - Google Patents

Liquid storage vessel for liquid weighing apparatus, and liquid weighing apparatus with the same Download PDF

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JP2007278701A
JP2007278701A JP2006101343A JP2006101343A JP2007278701A JP 2007278701 A JP2007278701 A JP 2007278701A JP 2006101343 A JP2006101343 A JP 2006101343A JP 2006101343 A JP2006101343 A JP 2006101343A JP 2007278701 A JP2007278701 A JP 2007278701A
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liquid
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wall portion
container
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Tadashi Furuhata
正 古畑
Junko Suyama
純子 巣山
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Seiko Epson Corp
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Seiko Epson Corp
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<P>PROBLEM TO BE SOLVED: To provide a liquid storage vessel for a liquid weighing apparatus capable of uniformly keeping the interval between a fluid injection head and the liquid level of the liquid storage vessel and weighing a micro droplet even if the liquid overflows, and a liquid weighing apparatus with the same. <P>SOLUTION: A main storage space 28 with an opened upper surface is formed by erecting a main wall section 27 at the rim of the main bottom 26. An auxiliary storage space 31 with the opened upper surface is formed between the main wall section 27 and an auxiliary wall section 30 is formed by erecting the auxiliary wall section 30 at the rim of an auxiliary bottom 29 formed outside the main wall section 27 to surround the main wall section 27. The liquid can be stored in the auxiliary storage space 31 when the liquid stored in the main storage space 28 overflows. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、インクジェット式記録ヘッドに代表される液体噴射ヘッドの噴射する液体の量を測定する液体重量測定装置用液体収容容器、及び、これを備えた液体重量測定装置に関する。   The present invention relates to a liquid container for a liquid weight measuring apparatus that measures the amount of liquid ejected by a liquid ejecting head represented by an ink jet recording head, and a liquid weight measuring apparatus including the same.

液体重量測定装置で噴射する液体の量（吐出量）を測定する液体噴射ヘッドは、例えば、プリンタ等の画像記録装置に用いられるインクジェット式記録ヘッド（以下、記録ヘッドという。）、液晶ディスプレー等のカラーフィルタの製造に用いられている色材噴射ヘッド、有機ＥＬ（Electro Luminescence）ディスプレー、ＦＥＤ（面発光ディスプレー）等の電極形成に用いられる電極材噴射ヘッド、バイオチップ（生物化学素子）の製造に用いられる生体有機物噴射ヘッド等がある。   A liquid ejecting head that measures the amount of liquid ejected by the liquid weight measuring device (discharge amount) is, for example, an ink jet recording head (hereinafter referred to as a recording head) used in an image recording apparatus such as a printer, a liquid crystal display, or the like. For the production of color material ejection heads used in the production of color filters, electrode material ejection heads used in the formation of electrodes such as organic EL (Electro Luminescence) displays, FEDs (surface emitting displays), and biochips (biochemical elements) There are bio-organic matter ejecting heads used.

このような記録ヘッドにおいて、吐出される液体の正確な吐出量（吐出される液体の重量）を測定することは、記録ヘッドが正常に機能しているか検査するだけでなく、目的の吐出量を得るための記録ヘッドの適正駆動電圧を求めるためにも重要である。この記録ヘッドの吐出量を測定するために、液体重量測定装置として電子天秤を使用し、この電子天秤上にテラスオイル等の不揮発性の液体を入れた液体重量測定装置用液体収容容器を載せ、この液体収容容器内に記録ヘッドからインク等の液体を吐出させることによって、揮発による測定誤差をなくして吐出された液体の重量を測定する液体重量測定装置が用いられている（例えば、特許文献１）。
特開２００４−１９１３０８号公報 In such a recording head, measuring the exact discharge amount (weight of the discharged liquid) of the discharged liquid not only checks whether the recording head is functioning normally, but also determines the target discharge amount. It is also important for obtaining an appropriate drive voltage for the recording head to be obtained. In order to measure the discharge amount of the recording head, an electronic balance is used as a liquid weight measuring device, and a liquid container for a liquid weight measuring device in which a non-volatile liquid such as terrace oil is placed on the electronic balance, A liquid weight measuring device is used that measures the weight of the discharged liquid by eliminating a measurement error due to volatilization by discharging a liquid such as ink from the recording head into the liquid container (for example, Patent Document 1). ).
JP 2004-191308 A

しかしながら、上記液体重量測定装置では、液体収容容器内に入った不揮発性の液体の液面（測定用吐出対象液面）に被測定液体を吐出させて、液体収容容器内の不揮発性の液体と被測定液体とを合わせた液体の重量を測定しているため、液体収容容器から液体が溢れ出ないように、予め液体収容容器内の液体の量を減らして液面の高さを下げておかなければならなかった。ところが、その液面と被測定の記録ヘッドのノズル面との間隔を一定に保持することが次第に困難になってきた。その理由は、この種の記録ヘッドでは、高画質化の要求に伴い、吐出する液体（液滴）の量が微量になってきており、この微量の液滴を測定する場合は、微量の液滴の飛行距離が短いため、液体収容容器内の液面と記録ヘッドのノズル面との間隔を縮めなければならなかったからである。この間隔を縮めるために、予め液体収容容器内の液体の量を増やして、この液体の液面を液体収容容器の上端付近まで高めておくことも考えられるが、１回の測定に記録ヘッドから数万ショットの液滴を液体収容容器内に吐出するため、液体収容容器内から液体が溢れ出してしまい、被測定液体の重量を正確に測定することが極めて困難であった。   However, in the liquid weight measuring device, the liquid to be measured is discharged onto the liquid surface (liquid surface to be measured for measurement) of the non-volatile liquid that has entered the liquid container, and the non-volatile liquid in the liquid container is Since the weight of the liquid combined with the liquid to be measured is measured, the liquid level in the liquid container must be reduced in advance so that the liquid does not overflow from the liquid container. I had to. However, it has become increasingly difficult to keep the distance between the liquid level and the nozzle surface of the recording head to be measured constant. The reason for this is that with this type of recording head, the amount of liquid (droplets) to be ejected has become very small in accordance with the demand for higher image quality. This is because the distance between the liquid surface in the liquid container and the nozzle surface of the recording head has to be reduced because the flight distance of the droplets is short. In order to shorten this interval, it is conceivable to increase the amount of liquid in the liquid container in advance and raise the liquid level to the vicinity of the upper end of the liquid container. Since tens of thousands of shots of droplets are discharged into the liquid storage container, the liquid overflows from the liquid storage container, making it extremely difficult to accurately measure the weight of the liquid to be measured.

本発明はこのような問題に鑑みてなされたもので、その目的とするところは、液体噴射ヘッドと液体収容容器の液面との間隔を一定に保持することができ、液体が溢れ出ても微量の液滴の重量を測定することが可能な液体重量測定装置用液体収容容器、及び、これを備えた液体重量測定装置を提供することにある。   The present invention has been made in view of such problems, and an object of the present invention is to maintain a constant distance between the liquid ejecting head and the liquid surface of the liquid storage container, even if liquid overflows. An object of the present invention is to provide a liquid container for a liquid weight measuring device capable of measuring the weight of a small amount of droplets, and a liquid weight measuring device provided with the same.

上記目的を達成するため、本発明の液体重量測定装置用液体収容容器は、主底部の周縁に主壁部を立設して上面が開口した主収容空部を形成すると共に、前記主壁部の外側に形成した補助底部の周縁に、主壁部を囲繞するように補助壁部を立設して主壁部と補助壁部との間に上面が開口した補助収容空部を形成し、
前記主収容空部内に貯留された液体が溢れ出た際に、この液体を前記補助収容空部内に収容可能に構成したことを特徴とする。 In order to achieve the above object, a liquid storage container for a liquid weight measuring apparatus according to the present invention forms a main storage cavity having an upper surface opened by standing a main wall on the periphery of a main bottom, and the main wall Auxiliary accommodating hollow portion having an upper surface opened between the main wall portion and the auxiliary wall portion is formed on the periphery of the auxiliary bottom portion formed on the outside of the auxiliary wall portion so as to surround the main wall portion,
When the liquid stored in the main storage space overflows, the liquid can be stored in the auxiliary storage space.

上記構成によれば、主収容空部内に貯留された液体が溢れ出た際に、この液体を前記補助収容空部内に収容可能に構成したので、主収容空部内に被測定液体を収容して液体の重量測定を行う場合には、補助収容空部内が溢れ出た液体で満たされるまで、連続して被測定液体の重量測定が可能となる。そして、主収容空部内の液体が溢れ出すことにより、主収容空部内の液体の液面の高さを常に主壁部の上端の高さに揃えることができる。したがって、被測定の液体噴射ヘッドと測定用吐出対象液面となる主収容空部内の液体の液面との間隔を、容易に一定に保持することができる。また、被測定の液体噴射ヘッドと測定用吐出対象液面との間隔を、従来構成と比較して小さく設定することが可能となり、液体噴射ヘッドから吐出される微量の液滴も測定可能とすることができる。   According to the above configuration, when the liquid stored in the main storage space overflows, this liquid can be stored in the auxiliary storage space, so that the liquid to be measured is stored in the main storage space. When measuring the weight of the liquid, it is possible to continuously measure the weight of the liquid to be measured until the auxiliary accommodating space is filled with the overflowing liquid. Then, when the liquid in the main housing space overflows, the liquid level of the liquid in the main housing space can always be made equal to the height of the upper end of the main wall. Therefore, the distance between the liquid jet head to be measured and the liquid level of the liquid in the main housing cavity that becomes the measurement target liquid level can be easily maintained constant. In addition, the distance between the liquid jet head to be measured and the measurement target liquid surface can be set smaller than in the conventional configuration, and a small amount of liquid droplets ejected from the liquid jet head can be measured. be able to.

上記構成において、主壁部の上端縁に液体溢出用切欠部を設けることが望ましい。   In the above configuration, it is desirable to provide a liquid overflow notch at the upper edge of the main wall.

上記構成によれば、主壁部の上端縁に液体溢出用切欠部を設けたので、この切欠部より主収容空部内に貯留された液体をスムーズに補助収容空部内に流出させることができる。即ち、主収容空部内が液体で満たされた際に、主壁部の上端縁の液面が表面張力によって高さ方向に盛り上がることを防止し、常に主収容空部内に貯留された液体の液面を主壁部の上端の高さに揃えるように設定することが可能となる。   According to the above configuration, since the liquid overflow notch is provided at the upper end edge of the main wall portion, the liquid stored in the main accommodation space can be smoothly flowed into the auxiliary accommodation space from this notch. That is, when the main storage cavity is filled with liquid, the liquid surface of the upper edge of the main wall is prevented from rising in the height direction due to surface tension, and the liquid liquid always stored in the main storage cavity It is possible to set the surface to be aligned with the height of the upper end of the main wall portion.

上記各構成において、主壁部及び前記補助壁部は、環状に形成されていることが好ましい。   In each of the above configurations, the main wall portion and the auxiliary wall portion are preferably formed in an annular shape.

また、本発明の液体重量測定装置用液体収容容器は、主底部の周縁に主壁部を立設して上面が開口した主収容空部を形成すると共に、前記主壁部から外側に延出して形成した補助底部の周縁に、前記主壁部から補助底部を囲繞するように補助壁部を立設して主壁部と補助壁部とに区画され上面が開口した補助収容空部を形成し、
前記主壁部の補助収容空部側の上端縁に液体溢出用切欠部を設け、
前記主収容空部内に貯留された液体が溢れ出た際に、この液体が前記切欠部を通り前記補助収容空部内に収容可能に構成したことを特徴とする。 The liquid container for a liquid weight measuring device according to the present invention has a main housing portion that is erected on the periphery of the main bottom portion to form a main housing cavity having an open upper surface, and extends outward from the main wall portion. The auxiliary wall portion is erected so as to surround the auxiliary bottom portion from the main wall portion at the peripheral edge of the auxiliary bottom portion formed to form an auxiliary accommodation space that is partitioned into the main wall portion and the auxiliary wall portion and the upper surface is open. And
A liquid overflow notch is provided at the upper end edge of the main wall on the side of the auxiliary housing space,
When the liquid stored in the main accommodating space overflows, the liquid passes through the notch and can be accommodated in the auxiliary accommodating space.

上記構成によれば、主収容空部内に貯留された液体が溢れ出た際に、この液体が前記切欠部を通り前記補助収容空部内に収容可能に構成したので、主収容空部内に被測定液体を収容して液体の重量測定を行う場合には、補助収容空部内が溢れ出た液体で満たされるまで、連続して被測定液体の重量測定が可能となる。そして、主収容空部内の液体が溢れ出すことにより、主収容空部内の液体の液面の高さを常に主壁部の上端の高さに揃えることができる。したがって、被測定の液体噴射ヘッドと測定用吐出対象液面となる主収容空部内の液体の液面との間隔を、容易に一定に保持することができる。また、被測定の液体噴射ヘッドと測定用吐出対象液面との間隔を、従来構成と比較して小さく設定することが可能となり、液体噴射ヘッドから吐出される微量の液滴も測定可能とすることができる。さらに、主壁部の補助収容空部側の上端縁に液体溢出用切欠部を設けるので、この切欠部より主収容空部内に貯留された液体をスムーズに補助収容空部内に流出させることができる。即ち、主収容空部内が液体で満たされた際に、主壁部の上端縁の液面が表面張力によって高さ方向に盛り上がることを防止し、常に主収容空部内に貯留された液体の液面を主壁部の上端の高さに揃えるように設定することが可能となる。   According to the above configuration, when the liquid stored in the main accommodating space overflows, the liquid can be accommodated in the auxiliary accommodating space through the notch, so that the measurement is performed in the main accommodating space. When the liquid is stored and the weight of the liquid is measured, the weight of the liquid to be measured can be continuously measured until the auxiliary storage space is filled with the overflowing liquid. Then, when the liquid in the main housing space overflows, the liquid level of the liquid in the main housing space can always be made equal to the height of the upper end of the main wall. Therefore, the distance between the liquid jet head to be measured and the liquid level of the liquid in the main housing cavity that becomes the measurement target liquid level can be easily maintained constant. In addition, the distance between the liquid jet head to be measured and the measurement target liquid surface can be set smaller than in the conventional configuration, and a small amount of liquid droplets ejected from the liquid jet head can be measured. be able to. Further, since the liquid overflow notch is provided at the upper end edge of the main wall on the side of the auxiliary accommodating space, the liquid stored in the main accommodating space can be smoothly discharged into the auxiliary accommodating space from this notch. . That is, when the main storage cavity is filled with liquid, the liquid surface of the upper edge of the main wall is prevented from rising in the height direction due to surface tension, and the liquid liquid always stored in the main storage cavity It is possible to set the surface to be aligned with the height of the upper end of the main wall portion.

上記各構成において、主壁部の高さを補助壁部の高さより高くすることが望ましい。   In each of the above configurations, it is desirable that the height of the main wall portion be higher than the height of the auxiliary wall portion.

上記構成によれば、被測定の液体噴射ヘッドを主収容空部の上方にセットする際に、主壁部の外側に囲繞する補助壁部に液体噴射ヘッドが干渉する虞がなくなる。   According to the above configuration, when the liquid jet head to be measured is set above the main housing cavity, there is no possibility that the liquid jet head interferes with the auxiliary wall portion that surrounds the outside of the main wall portion.

上記各構成において、切欠部がＶ字状切欠であることが望ましい。   In each of the above-described configurations, it is desirable that the notch is a V-shaped notch.

また、本発明の液体重量測定装置は、上記各構成における液体重量測定装置用液体収容容器を備え、
液体噴射ヘッドから前記液体収容容器の主収容空部内に向けて被測定液体を噴射させるように構成したことを特徴とする。 Further, the liquid weight measuring device of the present invention includes a liquid container for a liquid weight measuring device in each of the above-described configurations,
The liquid to be measured is ejected from the liquid ejecting head toward the main accommodating empty portion of the liquid accommodating container.

上記構成によれば、液体収容容器の主収容空部内の液面の高さを一定に保持できるので、液体噴射ヘッドの高さを調整して、液体噴射ヘッドと測定用吐出対象液面となる主収容空部内の液面の間隔を一定に保持する操作を行う必要がなくなる。   According to the above configuration, the liquid level in the main storage cavity of the liquid storage container can be kept constant, so that the height of the liquid jet head is adjusted to become the liquid jet head and the measurement target liquid level. There is no need to perform an operation of keeping the liquid level interval in the main housing cavity constant.

以下、本発明を実施するための最良の形態を図面に基づいて説明する。なお、以下に述べる実施形態では、本発明の好適な具体例として種々の限定がされているが、本発明の範囲は、以下の説明において特に本発明を限定する旨の記載がない限り、これらの態様に限られるものではない。   Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Note that, in the embodiments described below, various limitations are made as preferred specific examples of the present invention. However, the scope of the present invention is not limited to the following description unless otherwise specified. However, the present invention is not limited to this embodiment.

本発明に係る液体重量測定装置用液体収容容器、及びこれを備える液体重量測定装置は、揮発性の高い液体を吐出する液体噴射ヘッドの液体の吐出量を測定する場合に用いられるが、例えば、液体噴射装置の一種であるインクジェット式記録装置に搭載されるインクジェット式記録ヘッド（以下、単に記録ヘッドという）のインクの吐出量を測定する場合に用いることができ、以下にこの記録ヘッドの構造について簡単に説明する。   A liquid container for a liquid weight measuring device according to the present invention and a liquid weight measuring device including the same are used when measuring the liquid discharge amount of a liquid jet head that discharges a highly volatile liquid. It can be used to measure the amount of ink discharged from an ink jet recording head (hereinafter simply referred to as a recording head) mounted on an ink jet recording apparatus which is a kind of liquid ejecting apparatus. Briefly described.

図１（ａ）は記録ヘッドの要部断面図、図１（ｂ）は一部を省略したノズルプレートの平面図である。   1A is a cross-sectional view of a main part of the recording head, and FIG. 1B is a plan view of a nozzle plate with a part thereof omitted.

図１に示した記録ヘッド１は、合成樹脂製のヘッドケース２と、このヘッドケース２内の収納空部３に収納される振動子ユニット４と、ヘッドケース２の先端（底面）に接合される流路ユニット５から概略構成されている。   The recording head 1 shown in FIG. 1 is joined to a synthetic resin head case 2, a vibrator unit 4 stored in a storage space 3 in the head case 2, and a tip (bottom surface) of the head case 2. The flow path unit 5 is generally configured.

上記振動子ユニット４は、櫛歯状に作製された複数の圧電振動子６と、各圧電振動子６の固定端部が接合される固定板７と、各圧電振動子６と駆動回路（図示せず）とを電気的に接合する導通線８等から構成されている。そして、圧電振動子６の自由端部の先端面は、収納空部３における流路ユニット５側の開口に臨み、流路ユニット５の圧力室９の上部に形成された島部１０に接合される。   The vibrator unit 4 includes a plurality of piezoelectric vibrators 6 formed in a comb-like shape, a fixing plate 7 to which a fixed end of each piezoelectric vibrator 6 is joined, each piezoelectric vibrator 6 and a drive circuit (see FIG. (Not shown) and the like. The distal end surface of the free end portion of the piezoelectric vibrator 6 faces the opening on the flow path unit 5 side in the storage space 3 and is joined to an island portion 10 formed at the upper portion of the pressure chamber 9 of the flow path unit 5. The

この流路ユニット５は、複数のノズル開口１１が設けられたノズルプレート１３と、各ノズル開口１１と連通する複数の圧力室９が列設された流路基板１５と、各圧力室９の一部を区画する振動板１６とを備えている。そして、この流路ユニット５は、流路基板１５の一方の面にノズルプレート１３を、他方の面に振動板１６をそれぞれ接合した構成とされる。   The flow path unit 5 includes a nozzle plate 13 having a plurality of nozzle openings 11, a flow path substrate 15 in which a plurality of pressure chambers 9 communicating with the nozzle openings 11 are arranged, and one pressure chamber 9. And a diaphragm 16 that divides the portion. The flow path unit 5 has a configuration in which the nozzle plate 13 is bonded to one surface of the flow path substrate 15 and the diaphragm 16 is bonded to the other surface.

上記流路基板１５は、例えば、シリコンウエハーによって作製され、エッチング加工することで、複数の圧力室９と、各圧力室９に導入されるインクを貯留するリザーバ１７と、各圧力室９とリザーバ１７を連通するインク供給口１８とを形成する。   The flow path substrate 15 is made of, for example, a silicon wafer, and is etched so that a plurality of pressure chambers 9, a reservoir 17 that stores ink introduced into each pressure chamber 9, and each pressure chamber 9 and reservoir And an ink supply port 18 that communicates with 17.

上記ノズルプレート１３は、例えば、薄手のステンレス板によって作製される。このノズルプレート１３には、例えば、図１（ｂ）に示すように、ドット密度に対応したピッチで複数のノズル開口１１が列設される。   The nozzle plate 13 is made of a thin stainless plate, for example. For example, as shown in FIG. 1B, a plurality of nozzle openings 11 are arranged in the nozzle plate 13 at a pitch corresponding to the dot density.

上記振動板１６は、ステンレス製の支持板にＰＰＳ膜等の弾性体膜を積層した二重構造を採り、各圧力室９に対応する部分の支持板が環状にエッチング加工されて、この環内に島部１０が形成され、この部分がダイヤフラム部として機能する。また、リザーバ１７に対応する部分は、支持板がエッチング加工によって排除されて弾性体膜だけのコンプライアンス部となっている。   The diaphragm 16 has a double structure in which an elastic film such as a PPS film is laminated on a stainless steel support plate, and the support plate corresponding to each pressure chamber 9 is etched into an annular shape. The island part 10 is formed in this, and this part functions as a diaphragm part. In addition, the portion corresponding to the reservoir 17 is a compliance portion made only of an elastic film by removing the support plate by etching.

したがって、このように構成された記録ヘッド１において、駆動信号が駆動回路（図示せず）から導通線８を経て圧電振動子６に入力されると、圧電振動子６の自由端部が素子長手方向に伸縮する。この自由端部の伸縮により、島部１０が圧力室９側に押されたり、その反対方向に引っ張られたりして、圧力室９の容積が変動する。この容積変動によってこの圧力室９内に貯留されているインクの圧力が変動するので、このインクの圧力を制御することで、ノズル開口１１からインク滴を吐出させることができる。   Therefore, in the recording head 1 configured as described above, when a drive signal is input from the drive circuit (not shown) to the piezoelectric vibrator 6 through the conduction line 8, the free end of the piezoelectric vibrator 6 becomes the element longitudinal length. Stretch in the direction. Due to the expansion and contraction of the free end, the island 10 is pushed toward the pressure chamber 9 or pulled in the opposite direction, and the volume of the pressure chamber 9 varies. Since the pressure of the ink stored in the pressure chamber 9 fluctuates due to the volume fluctuation, the ink droplet can be ejected from the nozzle opening 11 by controlling the pressure of the ink.

次に、上記の記録ヘッド１のインクの吐出量を測定する液体重量測定装置、及びこの液体重量測定装置に備えられた液体重量測定装置用液体収容容器の第１の実施形態について説明する。
図２は、本発明の液体重量測定装置を説明する模式図、図３は、本発明の液体重量測定装置用液体収容容器の斜視図である。 Next, a first embodiment of a liquid weight measuring device for measuring the ink discharge amount of the recording head 1 and a liquid container for a liquid weight measuring device provided in the liquid weight measuring device will be described.
FIG. 2 is a schematic diagram for explaining the liquid weight measuring device of the present invention, and FIG. 3 is a perspective view of the liquid container for the liquid weight measuring device of the present invention.

本実施形態における液体重量測定装置２０は、微小単位まで測定可能な高精度の重量測定器の一種である電子天秤２１と、この電子天秤２１の上部に設けられた測定部２２に載置される受け皿２３と、この受け皿２３に載置され、記録ヘッド１から吐出される被測定液体の一種であるインクを収容する液体重量測定装置用液体収容容器（以下、液体収容容器という）２５とを備えて構成される。   The liquid weight measuring device 20 according to the present embodiment is placed on an electronic balance 21 which is a kind of high-precision weight measuring device capable of measuring even a minute unit, and a measuring unit 22 provided on the electronic balance 21. A tray 23 and a liquid container for liquid weight measuring device (hereinafter referred to as a liquid container) 25 that is placed on the tray 23 and stores ink that is a type of liquid to be measured discharged from the recording head 1. Configured.

液体収容容器２５は、図３に示すように、丸い主底部２６の周縁に主壁部２７をほぼ垂直に立設して上面が開口した丸い主収容空部２８を形成すると共に、主壁部２７の外側に形成したドーナツ形の補助底部２９の周縁に、主壁部２７を囲繞するように補助壁部３０をほぼ垂直に立設して主壁部２７と補助壁部３０との間に上面が開口した円形リング状の補助収容空部３１を形成し、主収容空部２８内に貯留された液体が溢れ出た際に、この液体を補助収容空部３１内に収容可能に構成したことを特徴とする。   As shown in FIG. 3, the liquid storage container 25 has a main wall portion 27 erected almost vertically on the periphery of the round main bottom portion 26 to form a round main storage space portion 28 whose upper surface is open, and the main wall portion. An auxiliary wall portion 30 is erected substantially vertically on the periphery of the donut-shaped auxiliary bottom portion 29 formed on the outside of the main wall portion 27 so as to surround the main wall portion 27, and between the main wall portion 27 and the auxiliary wall portion 30. A circular ring-shaped auxiliary receiving space 31 having an open upper surface is formed, and when the liquid stored in the main receiving space 28 overflows, the liquid can be stored in the auxiliary receiving space 31. It is characterized by that.

上記液体重量測定装置２０は、液体収容容器２５の主収容空部２８内に、テラスオイル等の不揮発性であってインクよりも比重の小さな液体を、その液面の高さが主壁部２７の上端の高さに揃うように投入した状態で、記録ヘッド１から主収容空部２８内に向けてインク（被測定液体の一種）を吐出させるようになっている。そして、インクの吐出前の液体収容容器２５の総重量（液体収容容器２５自体の重量と主・補助収容空部２８，３１内の液体の重量との和）とインクの吐出後の液体収容容器２５の総重量との差より、吐出されたインクの重量を測定するようになっている。なお、揮発性の高いインクを、収容空部内のテラスオイルに吐出して介在させているので、インクの揮発を抑制し、揮発による重量の測定誤差をなくしている。   In the liquid weight measuring device 20, a non-volatile liquid such as terrace oil having a specific gravity smaller than that of ink is placed in the main storage space 28 of the liquid storage container 25. Ink is discharged from the recording head 1 into the main accommodating cavity 28 in a state where it is inserted so as to be aligned with the height of the upper end of the ink. Then, the total weight of the liquid storage container 25 before ink discharge (the sum of the weight of the liquid storage container 25 itself and the weight of the liquid in the main / auxiliary storage empty portions 28 and 31) and the liquid storage container after the ink discharge. From the difference from the total weight of 25, the weight of the ejected ink is measured. In addition, since highly volatile ink is ejected and intervened in the terrace oil in the accommodation space, the volatilization of the ink is suppressed and the measurement error of the weight due to the volatilization is eliminated.

この液体重量測定装置２０の液体収容容器２５を、上述したように、主収容空部２８と補助収容空部３１とで構成し、記録ヘッド１から主収容空部２８内に向けてインクを吐出させて、この主収容空部２８内に貯留された液体（テラスオイルと吐出されたインクの混合液体）が溢れ出た際に、この液体を補助収容空部３１内に収容可能にしているので、補助収容空部３１内が溢れ出た液体で満たされるまで、連続して吐出されたインクの重量の測定が可能となる。また、主収容空部２８内の液体が溢れ出すことにより、主収容空部２８内の液体の液面の高さを常に主壁部２７の上端の高さに揃えることができる。即ち、図２に示すように、被測定の記録ヘッド１のノズル面（ノズルプレート１３の表面）と測定用吐出対象液面Ｓとなる主収容空部２８内の液体の液面との間隔ｄを、容易に一定に保持することができる。そして、この間隔ｄを従来構成と比較して小さく設定することができるので、記録ヘッド１から吐出される微量のインク滴も測定可能とすることができる。また、測定用吐出対象液面Ｓの高さを一定に保持できるので、例えば、インクが吐出されることによりこの液面の高さの変化する従前のように、その都度、記録ヘッド１の高さを調整して記録ヘッド１のノズル面と測定用吐出対象液面Ｓとの間隔ｄを一定に保持する操作を行う必要がない。   As described above, the liquid storage container 25 of the liquid weight measuring device 20 is constituted by the main storage space 28 and the auxiliary storage space 31 and discharges ink from the recording head 1 into the main storage space 28. Thus, when the liquid (mixed liquid of terrace oil and ejected ink) stored in the main storage space 28 overflows, this liquid can be stored in the auxiliary storage space 31. The weight of the ink ejected continuously can be measured until the inside of the auxiliary accommodation space 31 is filled with the overflowing liquid. Further, since the liquid in the main housing space 28 overflows, the liquid level of the liquid in the main housing space 28 can always be made equal to the height of the upper end of the main wall 27. That is, as shown in FIG. 2, the distance d between the nozzle surface (the surface of the nozzle plate 13) of the recording head 1 to be measured and the liquid surface of the liquid in the main accommodating cavity 28 that becomes the measurement target liquid surface S. Can be easily held constant. Since the distance d can be set smaller than that of the conventional configuration, a very small amount of ink droplets ejected from the recording head 1 can be measured. Further, since the height of the measurement target liquid surface S can be kept constant, the height of the recording head 1 is increased each time, for example, as before, when the height of the liquid surface changes due to the discharge of ink. It is not necessary to perform an operation of adjusting the height to keep the distance d between the nozzle surface of the recording head 1 and the measurement target liquid surface S constant.

また、本実施形態の液体収容容器２５は、例えば、耐湿性、耐油性、耐溶剤性をもつポリプロピレン等の熱可塑性樹脂を成型して作製され、図３に示すように、電子天秤２１の円状の受け皿２３の形状に倣って、主壁部２７及び補助壁部３０を円環状に形成して構成し、二重の短筒形状としている。そして、主壁部２７の上端の高さを、補助壁部３０の上端の高さより高く設定しているので、被測定液体となるインクの重量を測定するため、液体重量測定装置２０に取り付けられた記録ヘッド１を主収容空部２８の上方にセットする際に、主壁部２７の外側に囲繞する補助壁部３０に記録ヘッド１が干渉することがないようにしている。なお、主底部２６と補助底部２９との高さは揃える必要がなく、主収容空部２８と補助収容空部３１がインクやテラスオイル等の液体で満たされた状態での液体収容容器２５の最大総重量が、電子天秤２１の測定許容範囲を超えないように、主・補助底部２６，２９の高さや主・補助壁部２７、３０の高さをそれぞれ適宜設定することで、主収容空部２８と補助収容空部３１との容量を規制することが望ましい。これにより、測定エンドのタイミングを、主収容空部２８と補助収容空部３１の容量から算出して設定したり、補助収容空部３１内の液体の量を確認することで視覚的に認識することが可能となり、測定不能の事態を招くことを可及的に防止することができる。   In addition, the liquid container 25 of the present embodiment is produced by molding a thermoplastic resin such as polypropylene having moisture resistance, oil resistance, and solvent resistance, for example, and as shown in FIG. The main wall portion 27 and the auxiliary wall portion 30 are formed in an annular shape following the shape of the cylindrical tray 23, and are formed into a double short cylinder shape. And since the height of the upper end of the main wall part 27 is set higher than the height of the upper end of the auxiliary wall part 30, in order to measure the weight of the ink used as the liquid to be measured, it is attached to the liquid weight measuring device 20. When the recording head 1 is set above the main housing space 28, the recording head 1 is prevented from interfering with the auxiliary wall 30 surrounding the main wall 27. The heights of the main bottom portion 26 and the auxiliary bottom portion 29 do not need to be uniform, and the liquid storage container 25 in a state where the main storage space 28 and the auxiliary storage space 31 are filled with a liquid such as ink or terrace oil. By appropriately setting the height of the main / auxiliary bottom portions 26 and 29 and the height of the main / auxiliary wall portions 27 and 30 so that the maximum total weight does not exceed the measurement allowable range of the electronic balance 21, It is desirable to regulate the capacity of the portion 28 and the auxiliary accommodating empty portion 31. Thereby, the timing of the measurement end is calculated and set from the capacities of the main accommodating empty space 28 and the auxiliary accommodating empty space 31, or is visually recognized by checking the amount of liquid in the auxiliary accommodating empty space 31. Therefore, it is possible to prevent as much as possible from causing a situation in which measurement is impossible.

また、液体収容容器２５の主壁部２７の上端縁には、四方に４箇所のＶ字状の液体溢出用切欠部３２が設けられており、この切欠部３２より主収容空部２８内に貯留された液体をスムーズに補助収容空部３１内に流出させることができる。即ち、主収容空部２８内が液体で満たされた際に、主壁部２７の上端縁の液面が表面張力によって高さ方向に盛り上がることを防止し、常に主収容空部２８内に貯留された液体の液面を、主壁部２７の上端の高さに揃えるように設定することが可能となる。この切欠部３２は、液体収容容器２５の主壁部２７の上端縁にそれぞれ均等配置することで、常に主収容空部２８内に貯留された液体の液面を、主壁部２７の上端の高さに揃えるように設定することがより可能となる。したがって、記録ヘッド１のノズル面と測定用吐出対象液面Ｓとの間隔ｄをより一定に保持することが可能となる。なお、切欠部３２の形状や個数は、本実施形態で例示したものには限定されない。要は、表面張力の影響を少なくして、測定用吐出対象液面Ｓの高さを主壁部２７の上端の高さに揃えられるように設定できるものであればよく、主収容空部２８内に貯留される液体の種類や液体収容容器２５の材質によって、形状、大きさ、個数を適宜設定することが可能である。   Further, four V-shaped liquid overflow notches 32 are provided in four directions at the upper end edge of the main wall portion 27 of the liquid storage container 25, and the notches 32 enter the main storage space 28 from the notches 32. The stored liquid can be smoothly flowed into the auxiliary accommodation space 31. That is, when the main accommodating space 28 is filled with liquid, the liquid surface at the upper edge of the main wall 27 is prevented from rising in the height direction due to surface tension, and always stored in the main accommodating space 28. It is possible to set the liquid level of the liquid so as to be aligned with the height of the upper end of the main wall portion 27. The notches 32 are equally arranged at the upper edge of the main wall 27 of the liquid container 25 so that the liquid level of the liquid stored in the main housing space 28 is always at the upper end of the main wall 27. It is possible to set the height to be the same. Therefore, the distance d between the nozzle surface of the recording head 1 and the measurement target liquid surface S can be kept more constant. The shape and number of the notches 32 are not limited to those illustrated in the present embodiment. In short, it is only necessary that the influence of the surface tension is reduced and the height of the measurement target liquid surface S can be set to be equal to the height of the upper end of the main wall portion 27. The shape, size, and number can be appropriately set depending on the type of liquid stored in the container and the material of the liquid container 25.

次に、この液体重量測定装置２０を用いた重量測定方法を簡単に説明する。   Next, a weight measuring method using the liquid weight measuring apparatus 20 will be briefly described.

図２に示すように、まず、電子天秤２１の受け皿２３に液体収容容器２５を載置する。次に、液体収容容器２５の主収容空部２８内を、液面が主壁部２７の上端の高さに揃うように、テラスオイル等の不揮発性液体で満たす。そして、被測定液体となるインクを効率よく採取するために、測定用吐出対象液面Ｓとなる収容空部内の液体の液面（主壁部２７の上端）と記録ヘッド１のノズル面との間隔が一定の間隔ｄとなるように、記録ヘッド１を主収容空部２８の上方にセットする。ここで、記録ヘッド１から吐出するインク（滴）が、例えば、１．５〜２．０ｐｌの微量のインク滴の場合、このインク滴の飛行距離を考慮して一定の間隔ｄを３ｍｍ以内とすることが望ましい。これにより、吐出された微量のインク滴をミスト化させることなく、測定用吐出対象液面Ｓに確実に着弾させることが可能となる。   As shown in FIG. 2, first, the liquid storage container 25 is placed on the tray 23 of the electronic balance 21. Next, the main storage space 28 of the liquid storage container 25 is filled with a non-volatile liquid such as terrace oil so that the liquid level is aligned with the height of the upper end of the main wall 27. Then, in order to efficiently collect the ink that becomes the liquid to be measured, the liquid level of the liquid (the upper end of the main wall portion 27) in the accommodation empty space that becomes the measurement target liquid surface S and the nozzle surface of the recording head 1 The recording head 1 is set above the main housing space 28 so that the interval becomes a constant interval d. Here, when the ink (droplet) ejected from the recording head 1 is a small amount of ink droplet of 1.5 to 2.0 pl, for example, the fixed interval d is set to 3 mm or less in consideration of the flight distance of the ink droplet. It is desirable to do. Accordingly, it is possible to reliably land the measurement target ejection surface S without causing mist of the ejected minute ink droplets.

記録ヘッド１のノズル面と測定用吐出対象液面Ｓを、一定の間隔ｄにセットしたならば、電子天秤２１により液体収容容器２５の総重量（液体収容容器２５の重量と主・補助収容空部２８，３１に貯留された液体との和）を測定し、この時の測定値を基準重量Ｗ０（ｇ）とする。 If the nozzle surface of the recording head 1 and the measurement target liquid surface S are set at a fixed interval d, the electronic balance 21 causes the total weight of the liquid storage container 25 (the weight of the liquid storage container 25 and the main / auxiliary storage empty space). The sum of the liquid stored in the parts 28 and 31) is measured, and the measured value at this time is defined as a reference weight W 0 (g).

次に、記録ヘッド１を所定の位置に固定することで一定の間隔ｄを保持しつつ、記録ヘッド１から主収容空部２８に向けてインクを吐出させる。記録ヘッド１から設定したインクの量、例えば、数万ショットのインクを吐出させた後、電子天秤２１により直ちに、吐出されたインクの重量を加えた液体収容容器２５の総重量を測定して、１回目の測定値となる重量Ｗ１（ｇ）を得る。 Next, the recording head 1 is fixed at a predetermined position, and ink is ejected from the recording head 1 toward the main housing space 28 while maintaining a constant distance d. After the amount of ink set from the recording head 1, for example, tens of thousands of shots of ink is ejected, the electronic balance 21 immediately measures the total weight of the liquid storage container 25 including the weight of the ejected ink, A weight W 1 (g) as a first measurement value is obtained.

最後に、測定して得られた重量Ｗ０と重量Ｗ１との差を算出することにより、１回目の測定による記録ヘッド１が吐出したインクの重量Ｗ１（ｇ）を正確に測定することができる。以下、上述したように、記録ヘッド１からインクを吐出後、液体収容容器２５の総重量を測定する工程を繰り返すことにより、液体収容容器２５の補助収容空部３１内が、主収容空部２８内から溢れ出た液体で満たされるまで、連続して測定が可能となる。また、上記の重量Ｗ１（ｇ）を求める計算式は、Ｗ１＝Ｗ１−Ｗ０となる。したがって、Ｎ回目の吐出したインクの重量ＷＮ（ｇ）は、ＷＮ＝ＷＮ−ＷＮ−１によって算出することができる。なお、この吐出されたインクの重量ＷＮ（ｇ）を、測定時のショット数、記録ヘッド１のノズル列数、ノズル開口数等で除することにより、必要な吐出量を平均値として算出することが可能である。 Finally, by calculating the difference between the weight W 0 and the weight W 1 obtained by the measurement, the weight W1 (g) of the ink ejected by the recording head 1 in the first measurement can be accurately measured. it can. Hereinafter, as described above, after discharging the ink from the recording head 1, the process of measuring the total weight of the liquid storage container 25 is repeated so that the auxiliary storage space 31 of the liquid storage container 25 is in the main storage space 28. Continuous measurement is possible until the liquid overflows from the inside. The calculation formula for obtaining the weight W1 (g) becomes W1 = W 1 -W 0. Therefore, the weight WN (g) of the Nth ejected ink can be calculated by WN = W N −W N−1 . Note that the required ejection amount is calculated as an average value by dividing the weight WN (g) of the ejected ink by the number of shots at the time of measurement, the number of nozzle rows of the recording head 1, the number of nozzle openings, and the like. Is possible.

この様に、本実施形態の液体重量測定装置２０を用いた重量測定方法によれば、前述したように、簡単な構造で記録ヘッド１のノズル面と測定用吐出対象液面Ｓとの一定の間隔ｄを保持することができるため、この間隔ｄを従来に比べて小さく設定すると、微量のインク滴であってもミスト化させることなく、確実に測定用吐出対象液面Ｓに着弾させて、吐出したインクの重量の測定が可能となる。また、主収容空部２８内から溢れ出た液体を補助収容空部３１内に収容することができるので、この液体で補助収容空部３１内が満たされるまで、記録ヘッド１を所定の位置に固定したまま連続して測定が可能となる。   Thus, according to the weight measuring method using the liquid weight measuring apparatus 20 of the present embodiment, as described above, the nozzle surface of the recording head 1 and the measurement target liquid surface S are fixed with a simple structure. Since the distance d can be maintained, if this distance d is set smaller than in the prior art, even a small amount of ink droplets can be reliably landed on the measurement target liquid surface S without being misted. It becomes possible to measure the weight of the ejected ink. Further, since the liquid overflowing from the main accommodating space 28 can be accommodated in the auxiliary accommodating space 31, the recording head 1 is brought into a predetermined position until the auxiliary accommodating space 31 is filled with this liquid. Measurement can be performed continuously while fixed.

次に、第２の実施形態について説明する。第１の実施形態において、主壁部２７及び補助壁部３０を環状に形成した２重の短筒形状の液体収容容器２５を例示したが、本発明の液体収容容器は、この形状に限られない。主収容空部内の液体の液面の高さを一定に保持することができ、主収容空部内に貯留された液体が溢れ出た際に、補助収容空部３１内に収容可能なものであり、且つ、電子天秤２１の受け皿２３に載置可能なものであれば、どのような形状でもよい。   Next, a second embodiment will be described. In the first embodiment, the double short cylindrical liquid storage container 25 in which the main wall portion 27 and the auxiliary wall portion 30 are formed in an annular shape is illustrated, but the liquid storage container of the present invention is limited to this shape. Absent. The liquid level of the liquid in the main housing space can be kept constant, and can be stored in the auxiliary housing space 31 when the liquid stored in the main housing space overflows. And what kind of shape may be sufficient if it can be mounted in the saucer 23 of the electronic balance 21. FIG.

例えば、図４に示すように、略正方形の主底部３４の周縁に４つの主壁部３５をほぼ垂直に立設して上面が開口した主収容空部３６を形成すると共に、１つの主壁部３５から外側に延出して形成した四角形の補助底部３７の周縁、即ち、３辺に、主壁部３５から補助底部３７の３辺に亘って囲繞するように３つの補助壁部３８をほぼ垂直に立設して主壁部３５と補助壁部３８とに区画され上面が開口した補助収容空部３９を形成し、主壁部３５の補助収容空部３９側の上端縁に液体溢出用切欠部４０を設け、主収容空部３６内に貯留された液体が溢れ出た際に、この液体が切欠部４０を通り補助収容空部３９内に収容可能に構成された液体収容容器４１を用いることも可能である。そして、この液体収容容器４１は、第１の実施形態と同様に、切欠部４０をＶ字状切欠とし、主壁部３５の上端の高さを補助壁部３８の上端の高さより高くして構成され、主収容空部３６と補助収容空部３９とをそれぞれ構成する箱状体２つを並べて結合した形状である。また、この液体収容容器４１によれば、第１の実施形態と同様の作用効果を奏することができる。   For example, as shown in FIG. 4, four main wall portions 35 are erected substantially vertically on the periphery of the substantially square main bottom portion 34 to form a main accommodating hollow portion 36 whose upper surface is open, and one main wall The three auxiliary wall portions 38 are formed so as to surround the three peripheral sides of the auxiliary bottom portion 37 from the main wall portion 35 to the peripheral edge, ie, three sides, of the rectangular auxiliary bottom portion 37 formed to extend outward from the portion 35. An auxiliary accommodation space 39 is formed which is vertically erected and is divided into a main wall portion 35 and an auxiliary wall portion 38 and whose upper surface is open, and is used for overflowing liquid at the upper edge of the main wall portion 35 on the auxiliary accommodation space 39 side. A notch 40 is provided, and when the liquid stored in the main accommodation space 36 overflows, the liquid storage container 41 is configured so that this liquid can be accommodated in the auxiliary accommodation space 39 through the notch 40. It is also possible to use it. As in the first embodiment, the liquid storage container 41 has a V-shaped notch 40 and the upper end of the main wall 35 is higher than the upper end of the auxiliary wall 38. It is configured and has a shape in which two box-like bodies that respectively constitute the main housing empty portion 36 and the auxiliary housing empty portion 39 are arranged side by side. Moreover, according to this liquid container 41, there can exist an effect similar to 1st Embodiment.

（ａ）は記録ヘッドの要部断面図、（ｂ）は一部を省略したノズルプレートの正面図である。(A) is principal part sectional drawing of a recording head, (b) is a front view of the nozzle plate which abbreviate | omitted one part. 液体重量測定装置を説明する模式図である。It is a schematic diagram explaining a liquid weight measuring apparatus. 液体重量測定装置用液体収容容器の斜視図である。It is a perspective view of the liquid container for liquid weight measuring devices. 第２の実施形態の液体重量測定装置用液体収容容器の斜視図である。It is a perspective view of the liquid container for liquid weight measuring devices of a 2nd embodiment.

符号の説明Explanation of symbols

１…記録ヘッド，２…ヘッドケース，３…収納空部，４…振動子ユニット，５…流路ユニット，６…圧電振動子，７…固定板，８…導通線，９…圧力室，１０…島部，１１…ノズル開口，１３…ノズルプレート，１５…流路基板，１６…振動板，１７…リザーバ，１８…インク供給口，２０…液体重量測定装置，２１…電子天秤，２２…測定部，２３…受け皿，２５…液体収容容器，２６…主底部，２７…主壁部，２８…主収容空部，２９…補助底部，３０…補助壁部，３１…補助収容空部，３２…切欠部，３４…主底部，３５…主壁部，３６…主収容空部，３７…補助底部，３８…補助壁部，３９…補助収容空部，４０…切欠部，４１…液体収容容器   DESCRIPTION OF SYMBOLS 1 ... Recording head, 2 ... Head case, 3 ... Storage empty part, 4 ... Vibrator unit, 5 ... Flow path unit, 6 ... Piezoelectric vibrator, 7 ... Fixed plate, 8 ... Conduction line, 9 ... Pressure chamber, 10 DESCRIPTION OF SYMBOLS ... Island part, 11 ... Nozzle opening, 13 ... Nozzle plate, 15 ... Flow path substrate, 16 ... Vibration plate, 17 ... Reservoir, 18 ... Ink supply port, 20 ... Liquid weight measuring device, 21 ... Electronic balance, 22 ... Measurement , 23 ... receiving tray, 25 ... liquid container, 26 ... main bottom part, 27 ... main wall part, 28 ... main containing empty part, 29 ... auxiliary bottom part, 30 ... auxiliary wall part, 31 ... auxiliary containing empty part, 32 ... Notch, 34 ... main bottom, 35 ... main wall, 36 ... main housing cavity, 37 ... auxiliary bottom, 38 ... auxiliary wall, 39 ... auxiliary housing, 40 ... notch, 41 ... liquid container

Claims (7)

主底部の周縁に主壁部を立設して上面が開口した主収容空部を形成すると共に、前記主壁部の外側に形成した補助底部の周縁に、主壁部を囲繞するように補助壁部を立設して主壁部と補助壁部との間に上面が開口した補助収容空部を形成し、
前記主収容空部内に貯留された液体が溢れ出た際に、この液体を前記補助収容空部内に収容可能に構成したことを特徴とする液体重量測定装置用液体収容容器。 The main wall portion is erected on the peripheral edge of the main bottom portion to form a main housing cavity having an open upper surface, and the auxiliary wall portion is formed on the outer periphery of the main wall portion so as to surround the main wall portion. Auxiliary accommodation space with an upper surface opened between the main wall and the auxiliary wall is formed by standing the wall,
A liquid storage container for a liquid weight measuring apparatus, characterized in that when the liquid stored in the main storage space overflows, the liquid can be stored in the auxiliary storage space. 前記主壁部の上端縁に液体溢出用切欠部を設けたことを特徴とする請求項１に記載の液体重量測定装置用液体収容容器。   The liquid container for a liquid weight measuring apparatus according to claim 1, wherein a liquid overflow notch is provided at an upper end edge of the main wall. 前記主壁部及び前記補助壁部は、環状に形成されていることを特徴とする請求項１又は２に記載の液体重量測定装置用液体収容容器。   The liquid container for a liquid weight measuring device according to claim 1, wherein the main wall portion and the auxiliary wall portion are formed in an annular shape. 主底部の周縁に主壁部を立設して上面が開口した主収容空部を形成すると共に、前記主壁部から外側に延出して形成した補助底部の周縁に、前記主壁部から補助底部を囲繞するように補助壁部を立設して主壁部と補助壁部とに区画され上面が開口した補助収容空部を形成し、
前記主壁部の補助収容空部側の上端縁に液体溢出用切欠部を設け、
前記主収容空部内に貯留された液体が溢れ出た際に、この液体が前記切欠部を通り前記補助収容空部内に収容可能に構成したことを特徴とする液体重量測定装置用液体収容容器。 The main wall is erected on the peripheral edge of the main bottom to form a main housing cavity having an open top surface, and the auxiliary wall is supported by the peripheral edge of the auxiliary bottom formed by extending outward from the main wall. Auxiliary wall portion is erected so as to surround the bottom portion to form an auxiliary accommodation space that is partitioned into a main wall portion and an auxiliary wall portion and the upper surface is open,
A liquid overflow notch is provided on the upper end edge of the main wall portion on the side of the auxiliary housing space,
A liquid container for a liquid weight measuring apparatus, wherein when the liquid stored in the main storage space overflows, the liquid can be stored in the auxiliary storage space through the notch. 前記主壁部の高さを補助壁部の高さより高くしたことを特徴とする請求項１から４の何れかに記載の液体重量測定装置用液体収容容器。   The liquid container for a liquid weight measuring device according to any one of claims 1 to 4, wherein the height of the main wall portion is higher than the height of the auxiliary wall portion. 前記切欠部がＶ字状切欠であることを特徴とする請求項２から５の何れかに記載の液体重量測定装置用液体収容容器。   The liquid container for a liquid weight measuring device according to any one of claims 2 to 5, wherein the notch is a V-shaped notch. 請求項１から６の何れかに記載の液体重量測定装置用液体収容容器を備え、
液体噴射ヘッドから前記液体収容容器の主収容空部内に向けて被測定液体を噴射させるように構成したことを特徴とする液体重量測定装置。

A liquid storage container for a liquid weight measuring device according to any one of claims 1 to 6,
A liquid weight measuring apparatus configured to eject a liquid to be measured from a liquid ejecting head into a main accommodating space of the liquid accommodating container.

JP2006101343A 2006-04-03 2006-04-03 Liquid storage vessel for liquid weighing apparatus, and liquid weighing apparatus with the same Pending JP2007278701A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101881322B1 (en) * 2017-03-24 2018-07-26 김형민 Measure method using the educational tool
KR101893465B1 (en) * 2018-02-27 2018-08-30 김형민 Educational tool for observing cross section of solid figure
KR20200042125A (en) * 2018-10-15 2020-04-23 김정선 electromagnetic force compensation scale for inspection of inkjet nozzle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101881322B1 (en) * 2017-03-24 2018-07-26 김형민 Measure method using the educational tool
KR101893465B1 (en) * 2018-02-27 2018-08-30 김형민 Educational tool for observing cross section of solid figure
KR20200042125A (en) * 2018-10-15 2020-04-23 김정선 electromagnetic force compensation scale for inspection of inkjet nozzle
KR102104431B1 (en) 2018-10-15 2020-04-24 김정선 electromagnetic force compensation scale for inspection of inkjet nozzle

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