JP2021154708A - Cap of liquid storage tank, and liquid storage tank - Google Patents

Cap of liquid storage tank, and liquid storage tank Download PDF

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Publication number
JP2021154708A
JP2021154708A JP2020060209A JP2020060209A JP2021154708A JP 2021154708 A JP2021154708 A JP 2021154708A JP 2020060209 A JP2020060209 A JP 2020060209A JP 2020060209 A JP2020060209 A JP 2020060209A JP 2021154708 A JP2021154708 A JP 2021154708A
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cap
elastic member
liquid injection
storage tank
liquid storage
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太一 白野
Taichi Shirano
太一 白野
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Brother Industries Ltd
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Brother Industries Ltd
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Priority to JP2020060209A priority Critical patent/JP2021154708A/en
Priority to CN202110329658.7A priority patent/CN113459673A/en
Publication of JP2021154708A publication Critical patent/JP2021154708A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17553—Outer structure

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  • Closures For Containers (AREA)
  • Ink Jet (AREA)

Abstract

To provide a cap having a resin member composed of a resin material and an elastic member composed of a rubber material, in which when the cap is removed from a liquid injection part of a liquid storage tank, removal of the elastic member from the resin member is suppressed.SOLUTION: A cap for blocking a liquid injection part of a liquid storage tank for storing a liquid has a resin member composed of a resin material and an elastic member composed of a rubber material, in which the elastic member is mounted on the resin member and is brought into direct contact with the inner surface of the liquid injection part, and an area in which the elastic member is brought into contact with the resin member is larger than an area in which the elastic member is brought into contact with the inner surface of the liquid injection part.SELECTED DRAWING: Figure 2

Description

本開示は、液体を貯留する液体貯留タンクの液体注入部を閉塞するキャップ、および、このキャップによって液体注入部を閉塞可能な液体貯留タンクに関する。 The present disclosure relates to a cap that closes a liquid injection portion of a liquid storage tank that stores a liquid, and a liquid storage tank that can close the liquid injection portion by the cap.

従来、例えばインクなどの液体を貯留する液体貯留タンクを備え、この液体貯留タンクに貯留された液体を消費するインクジェット式プリンタが知られている。この種の液体貯留タンクには液体注入部が設けられており、その液体注入部は、キャップによって密閉状態で閉塞されるようになっている。使用者は、液体貯留タンクにインクを注入する場合には、キャップを液体注入部から取り外し、開放状態の液体注入部を通してインクを液体貯留タンク内に補給する。 Conventionally, an inkjet printer having a liquid storage tank for storing a liquid such as ink and consuming the liquid stored in the liquid storage tank is known. This type of liquid storage tank is provided with a liquid injection portion, and the liquid injection portion is closed by a cap in a sealed state. When injecting ink into the liquid storage tank, the user removes the cap from the liquid injection section and replenishes the ink into the liquid storage tank through the open liquid injection section.

この種のキャップとして、例えば特許文献１に開示されている構成が考えられている。この特許文献１に開示されているキャップは、樹脂部材と弾性部材とを備えている。樹脂部材は、把持部、本体部、密封部を有している。弾性部材は、樹脂部材の円筒状の密封部の側面に取り付けられている。 As a cap of this type, for example, a configuration disclosed in Patent Document 1 is considered. The cap disclosed in Patent Document 1 includes a resin member and an elastic member. The resin member has a grip portion, a main body portion, and a sealing portion. The elastic member is attached to the side surface of the cylindrical sealing portion of the resin member.

中国実用新案登録第２０６３５７８２５号China Utility Model Registration No. 2063578225

特許文献１に開示されているキャップにおいては、弾性部材と樹脂部材との接触面積が、液体注入部の内面と弾性部材との接触面積とほぼ同等あるいは完全に同等の面積となる。そのため、キャップを液体貯留タンクの液体注入部から取り外す際に、液体注入部の内面と弾性部材との間の摩擦力が、樹脂部材と弾性部材との間の摩擦力と拮抗あるいは上回ってしまう場合があり、このような場合に、弾性部材が液体注入部側に引っ張られて樹脂部材から外れてしまうおそれがある。 In the cap disclosed in Patent Document 1, the contact area between the elastic member and the resin member is substantially the same as or completely the same as the contact area between the inner surface of the liquid injection portion and the elastic member. Therefore, when the cap is removed from the liquid injection part of the liquid storage tank, the frictional force between the inner surface of the liquid injection part and the elastic member antagonizes or exceeds the frictional force between the resin member and the elastic member. In such a case, the elastic member may be pulled toward the liquid injection portion and come off from the resin member.

本開示は上記事情に鑑みてなされたものであり、その目的は、樹脂材で構成される樹脂部材と、ラバー材で構成される弾性部材とを備えるキャップについて、当該キャップを液体貯留タンクの液体注入部から取り外す際に、弾性部材が樹脂部材から外れてしまうことを抑制できるようにした構成を提供する。 The present disclosure has been made in view of the above circumstances, and an object of the present invention is to use a cap having a resin member made of a resin material and an elastic member made of a rubber material, and using the cap as a liquid in a liquid storage tank. Provided is a configuration capable of suppressing the elastic member from coming off from the resin member when it is removed from the injection portion.

本開示に係る液体貯留タンクのキャップは、液体を貯留する液体貯留タンクの液体注入部を閉塞するキャップであって、樹脂材で構成される樹脂部材と、ラバー材で構成される弾性部材と、を備え、前記弾性部材は、前記樹脂部材に取り付けられ、前記液体注入部の内面に直接接触するものであり、前記弾性部材が前記樹脂部材に接触する面積は、前記弾性部材が前記液体注入部の内面に接触する面積よりも大きいことを特徴とする。 The cap of the liquid storage tank according to the present disclosure is a cap that closes the liquid injection portion of the liquid storage tank that stores the liquid, and includes a resin member made of a resin material, an elastic member made of a rubber material, and the like. The elastic member is attached to the resin member and is in direct contact with the inner surface of the liquid injection portion, and the area in which the elastic member is in contact with the resin member is such that the elastic member is in contact with the liquid injection portion. It is characterized in that it is larger than the area in contact with the inner surface of the plastic.

本開示に係る液体貯留タンクのキャップによれば、弾性部材が樹脂部材に接触する面積は、弾性部材が液体注入部の内面に接触する面積よりも大きくなっている。そのため、キャップを液体貯留タンクの液体注入部から取り外す際に、液体注入部の内面と弾性部材との間の摩擦力が、樹脂部材と弾性部材との間の摩擦力と拮抗あるいは上回ってしまうことを回避することができる。よって、キャップを液体貯留タンクの液体注入部から取り外す際に、弾性部材が樹脂部材から外れてしまうことを抑制することができる。 According to the cap of the liquid storage tank according to the present disclosure, the area where the elastic member contacts the resin member is larger than the area where the elastic member contacts the inner surface of the liquid injection portion. Therefore, when the cap is removed from the liquid injection portion of the liquid storage tank, the frictional force between the inner surface of the liquid injection portion and the elastic member antagonizes or exceeds the frictional force between the resin member and the elastic member. Can be avoided. Therefore, it is possible to prevent the elastic member from coming off from the resin member when the cap is removed from the liquid injection portion of the liquid storage tank.

本開示に係る液体貯留タンクは、本開示に係るキャップによって液体注入部を閉塞可能な液体貯留タンクであって、前記液体注入部から前記キャップが取り外されるときに、前記キャップが前記液体注入部の軸方向に対して傾斜することを抑制する傾斜抑制部を備えることを特徴とする。 The liquid storage tank according to the present disclosure is a liquid storage tank in which the liquid injection portion can be closed by the cap according to the present disclosure, and when the cap is removed from the liquid injection portion, the cap becomes the liquid injection portion. It is characterized by including an inclination suppressing portion that suppresses inclination with respect to the axial direction.

本開示に係る液体貯留タンクによれば、液体注入部からキャップが取り外されるときに、キャップが液体注入部の軸方向に対して傾斜することを抑制することができる。よって、キャップを液体貯留タンクの液体注入部から取り外す際に、弾性部材が樹脂部材から外れてしまうことを抑制することができる。 According to the liquid storage tank according to the present disclosure, when the cap is removed from the liquid injection portion, it is possible to prevent the cap from tilting with respect to the axial direction of the liquid injection portion. Therefore, it is possible to prevent the elastic member from coming off from the resin member when the cap is removed from the liquid injection portion of the liquid storage tank.

本開示に係る液体貯留タンクの構成例を概略的に示す縦断側面図Longitudinal side view schematically showing a configuration example of the liquid storage tank according to the present disclosure. 本開示に係る液体貯留タンクの液体注入部及びその周辺部分の構成例を拡大して概略的に示す縦断側面図Longitudinal side view schematically showing a configuration example of a liquid injection portion and a peripheral portion of the liquid storage tank according to the present disclosure in an enlarged manner. 本開示に係るキャップの構成例を概略的に示す分解斜視図（その１）An exploded perspective view schematically showing a configuration example of a cap according to the present disclosure (No. 1). 本開示に係るキャップの構成例を概略的に示す分解斜視図（その２）An exploded perspective view schematically showing a configuration example of a cap according to the present disclosure (Part 2).

以下、本開示のキャップ及び液体貯留タンクに係る一実施形態について、図面を参照しながら説明する。なお、以下に例示する実施形態において、キャップを液体注入部から「取り外す」ことは、キャップを液体注入部から「引き抜く」ことと定義することもできる。また、キャップを液体注入部に「取り付ける」ことは、キャップを液体注入部に「圧入する」と定義することもできる。 Hereinafter, an embodiment relating to the cap and the liquid storage tank of the present disclosure will be described with reference to the drawings. In addition, in the embodiment illustrated below, "removing" the cap from the liquid injection part can also be defined as "pulling out" the cap from the liquid injection part. Also, "attaching" the cap to the liquid injection section can be defined as "press fitting" the cap into the liquid injection section.

（液体貯留タンクの構成例）
本実施形態の要部の説明に入る前に、本実施形態に係る液体貯留タンクの概略的な構成例について説明する。図１に例示する液体貯留タンク１は、例えば、図示しないインクジェット式プリンタなどの液体消費装置に搭載されるものであり、当該インクジェット式プリンタが消費する液体、この場合、シアンインク、マゼンタインク、イエローインク、ブラックインクなどを貯留するタンクである。 (Example of liquid storage tank configuration)
Before going into the description of the main part of the present embodiment, a schematic configuration example of the liquid storage tank according to the present embodiment will be described. The liquid storage tank 1 illustrated in FIG. 1 is mounted on a liquid consuming device such as an inkjet printer (not shown), and the liquid consumed by the inkjet printer, in this case cyan ink, magenta ink, or yellow. A tank for storing ink, black ink, etc.

図１に例示するように、液体貯留タンク１は、その外郭を構成する概ね直方体状のタンク本体部２を備えている。タンク本体部２の内部には、インクが貯留されるインク室３が設けられている。また、液体貯留タンク１は、インク室３内にインクを注入するための開口を有する液体注入部４を備えている。タンク本体部２の前部の上部には傾斜壁５が設けられており、液体注入部４は、この傾斜壁５に設けられている。なお、液体注入部４は、タンク本体部２のうち傾斜壁５以外の壁部、例えば、上壁や側壁に設けられていてもよい。 As illustrated in FIG. 1, the liquid storage tank 1 includes a substantially rectangular parallelepiped tank main body 2 that constitutes the outer shell thereof. An ink chamber 3 in which ink is stored is provided inside the tank main body 2. Further, the liquid storage tank 1 includes a liquid injection unit 4 having an opening for injecting ink into the ink chamber 3. An inclined wall 5 is provided on the upper portion of the front portion of the tank main body portion 2, and the liquid injection portion 4 is provided on the inclined wall 5. The liquid injection portion 4 may be provided on a wall portion other than the inclined wall 5 of the tank main body portion 2, for example, an upper wall or a side wall.

液体注入部４は、傾斜壁５の外面から斜め上方に突出するように設けられている。また、本開示においては、液体注入部４は、円筒形状に形成されている。 The liquid injection portion 4 is provided so as to project obliquely upward from the outer surface of the inclined wall 5. Further, in the present disclosure, the liquid injection portion 4 is formed in a cylindrical shape.

図２に例示するように、液体注入部４の先端４ａは、斜め上方に向かってタンク本体部２の外部に開口している。一方、液体注入部４の基端４ｂは、斜め下方に向かってインク室３内に開口している。 As illustrated in FIG. 2, the tip 4a of the liquid injection portion 4 opens obliquely upward to the outside of the tank main body portion 2. On the other hand, the base end 4b of the liquid injection portion 4 opens into the ink chamber 3 diagonally downward.

また、液体注入部４は、上下方向に対し非直交、且つ、水平方向よりも上方向となる前上方向に向かって、傾斜壁５から突出している。また、液体注入部４は、傾斜壁５の外面と直交する方向に向かって傾斜壁５から突出している。このように構成される液体注入部４は、斜め上方、即ち、前方且つ上方を向いて開口している。即ち、液体注入部４の開口中心線Ｌは、上下方向及び前後方向に対して傾斜している。 Further, the liquid injection unit 4 projects from the inclined wall 5 in the front-up direction, which is non-orthogonal with respect to the vertical direction and is upward from the horizontal direction. Further, the liquid injection portion 4 projects from the inclined wall 5 in a direction orthogonal to the outer surface of the inclined wall 5. The liquid injection portion 4 configured in this way is opened obliquely upward, that is, facing forward and upward. That is, the opening center line L of the liquid injection portion 4 is inclined with respect to the vertical direction and the front-rear direction.

なお、液体注入部４の開口中心線Ｌは、液体注入部４の先端４ａの中心及び液体注入部４の基端４ｂの中心を繋いだ線であり、その延長線も含む。本開示においては、液体注入部４の開口中心線Ｌは、当該液体注入部４が傾斜壁５から突出する方向と平行である。 The opening center line L of the liquid injection unit 4 is a line connecting the center of the tip 4a of the liquid injection unit 4 and the center of the base end 4b of the liquid injection unit 4, and includes an extension line thereof. In the present disclosure, the opening center line L of the liquid injection portion 4 is parallel to the direction in which the liquid injection portion 4 protrudes from the inclined wall 5.

上述のように構成される液体貯留タンク１において、液体注入部４は、着脱可能なキャップ１００によって密閉状態で閉塞されるようになっている。本開示は、このキャップ１００の構成例について創意工夫を施したものである。以下、このキャップ１００に係る複数の実施形態について説明する。 In the liquid storage tank 1 configured as described above, the liquid injection unit 4 is closed in a sealed state by a removable cap 100. The present disclosure is an ingenuity for a configuration example of the cap 100. Hereinafter, a plurality of embodiments relating to the cap 100 will be described.

図３及び図４にも例示するように、キャップ１００は、剛性のある樹脂材で構成される樹脂部材１１０と、エラストマ、ラバー、シリコンラバー等のラバー材で構成される弾性部材１２０とを組み合わせた構成となっている。弾性部材１２０は、樹脂部材１１０より弾性がある部材である。 As illustrated in FIGS. 3 and 4, the cap 100 is a combination of a resin member 110 made of a rigid resin material and an elastic member 120 made of a rubber material such as elastomer, rubber, or silicon rubber. It has a structure. The elastic member 120 is a member that is more elastic than the resin member 110.

樹脂部材１１０は、ベース部１１１、軸部１１２、把持部１１３を一体的に備えている。ベース部１１１は、樹脂部材１１０のベース部分を構成するものであり、この場合、ほぼ円形状をなしているが、その円形状の端部の一部にＤカット面１１１ａを有している。Ｄカット面１１１ａは、全体として概ね円形状であるベース部１１１の端部の一部、この場合、樹脂部材１１０の軸心を挟んで相互に対向する２か所を直線状に切り欠いた形状をなしている。 The resin member 110 integrally includes a base portion 111, a shaft portion 112, and a grip portion 113. The base portion 111 constitutes the base portion of the resin member 110. In this case, the base portion 111 has a substantially circular shape, but has a D-cut surface 111a at a part of the end portion of the circular shape. The D-cut surface 111a is a part of the end portion of the base portion 111 which is substantially circular as a whole, and in this case, a shape in which two portions facing each other with the axial center of the resin member 110 are cut out in a straight line. Is doing.

軸部１１２は、ベース部１１１の裏面、つまり、キャップ１００が液体注入部４に取り付けられた状態においてタンク本体部２側となる面に設けられている。この場合、軸部１１２は、ベース部１１１の裏面の中央部から樹脂部材１１０の軸心に沿って直線状に延びている。また、軸部１１２は、円筒状に形成されている。また、軸部１１２の先端部には、当該軸部１１２の先端側に向かって徐々に径寸法が短くなるテーパ部１１２ａが設けられている。また、軸部１１２の先端部には、テーパ部１１２ａよりも内側に位置して平坦部１１２ｂが設けられている。平坦部１１２ｂは、樹脂部材１１０の軸心に対して直交する平坦な部分となっている。なお、軸部１１２は、全体としては円筒状であり、その中心部に円柱状の空間が設けられている。この空間は、ベース部１１１を貫通し、把持部１１３内まで延びている。 The shaft portion 112 is provided on the back surface of the base portion 111, that is, on the surface that is on the tank main body portion 2 side when the cap 100 is attached to the liquid injection portion 4. In this case, the shaft portion 112 extends linearly from the central portion of the back surface of the base portion 111 along the axial center of the resin member 110. Further, the shaft portion 112 is formed in a cylindrical shape. Further, the tip portion of the shaft portion 112 is provided with a tapered portion 112a whose diameter gradually decreases toward the tip end side of the shaft portion 112. Further, a flat portion 112b is provided at the tip portion of the shaft portion 112 located inside the tapered portion 112a. The flat portion 112b is a flat portion orthogonal to the axial center of the resin member 110. The shaft portion 112 has a cylindrical shape as a whole, and a cylindrical space is provided at the center thereof. This space penetrates the base portion 111 and extends into the grip portion 113.

把持部１１３は、ベース部１１１の表面、つまり、キャップ１００が液体注入部４に取り付けられた状態においてタンク本体部２側とは反対側となる面に設けられている。この場合、把持部１１３は、ベース部１１１の表面の中央部から樹脂部材１１０の軸心に沿って直線状に延びている。把持部１１３は、全体として円柱状に形成されている。使用者は、この把持部１１３を手指で摘まむことによって、樹脂部材１１０、ひいては、キャップ１００全体を持って着脱操作を行うことができる。 The grip portion 113 is provided on the surface of the base portion 111, that is, on the surface opposite to the tank main body portion 2 side when the cap 100 is attached to the liquid injection portion 4. In this case, the grip portion 113 extends linearly from the central portion of the surface of the base portion 111 along the axial center of the resin member 110. The grip portion 113 is formed in a columnar shape as a whole. By pinching the grip portion 113 with fingers, the user can perform the attachment / detachment operation by holding the resin member 110 and the entire cap 100.

弾性部材１２０は、弾性部材本体部１２１及び複数、この場合、２つのウイング部１２２ａ，１２２ｂを一体的に備えている。弾性部材本体部１２１は、ほぼ円柱状に形成されており、その中心部に孔部１２１ａを有している。孔部１２１ａは、弾性部材本体部１２１を軸心方向に貫通しておらず、弾性部材本体部１２１の基端側を開放しているが、弾性部材本体部１２１の先端側は開放していない。樹脂部材１１０の軸部１１２は、この孔部１２１ａ内に差し込まれる。弾性部材本体部１２１の先端部は、凹凸等が無く、平滑に形成されている。また、弾性部材本体部１２１の先端部は閉塞されており、従って、孔部１２１ａ内に差し込まれた軸部１１２は、その全体が弾性部材本体部１２１によって覆われる。 The elastic member 120 integrally includes an elastic member main body 121 and a plurality, in this case, two wing portions 122a and 122b. The elastic member main body 121 is formed in a substantially columnar shape, and has a hole 121a in the center thereof. The hole 121a does not penetrate the elastic member main body 121 in the axial direction and opens the base end side of the elastic member main body 121, but does not open the tip end side of the elastic member main body 121. .. The shaft portion 112 of the resin member 110 is inserted into the hole portion 121a. The tip of the elastic member main body 121 is formed smoothly without unevenness or the like. Further, the tip portion of the elastic member main body 121 is closed, and therefore, the entire shaft portion 112 inserted into the hole 121a is covered by the elastic member main body 121.

また、弾性部材本体部１２１は、キャップ１００が液体注入部４に取り付けられる際には、液体注入部４内に差し込まれて、その外周面が液体注入部４の内周面に直接的に接触する。ここで、弾性部材本体部１２１の外側面部は、凹凸等が無く、平滑に形成されている。また、弾性部材本体部１２１の側面部が接触する液体注入部４の内周面も、凹凸等が無く、平滑に形成されている。 Further, when the cap 100 is attached to the liquid injection portion 4, the elastic member main body portion 121 is inserted into the liquid injection portion 4, and the outer peripheral surface thereof directly contacts the inner peripheral surface of the liquid injection portion 4. do. Here, the outer surface portion of the elastic member main body portion 121 is formed smoothly without unevenness or the like. Further, the inner peripheral surface of the liquid injection portion 4 in which the side surface portion of the elastic member main body portion 121 comes into contact is also formed smoothly without unevenness or the like.

ウイング部１２２ａ，１２２ｂは、弾性部材本体部１２１の基端部の側面において弾性部材１２０の径方向に沿って矩形状に突出している。また、ウイング部１２２ａ，１２２ｂは、弾性部材１２０の軸心を挟んで相互に対向する２か所に設けられている。 The wing portions 122a and 122b project in a rectangular shape along the radial direction of the elastic member 120 on the side surface of the base end portion of the elastic member main body portion 121. Further, the wing portions 122a and 122b are provided at two locations facing each other with the axial center of the elastic member 120 interposed therebetween.

また、樹脂部材１１０は、さらに、保持部１１４及び挟持部１１５を備えている。保持部１１４及び挟持部１１５は、何れも、ベース部１１１の裏面側に設けられている。即ち、ベース部１１１の裏面側には、軸部１１２の基端部の周囲を囲むようにして、複数、この場合、２つの円弧状の壁部１１６が設けられている。これら壁部１１６は、軸部１１２の基端部から所定の隙間を有して配置されており、この隙間に、弾性部材１２０の一部、この場合、弾性部材本体部１２１の基端部が嵌め込まれる。 Further, the resin member 110 further includes a holding portion 114 and a holding portion 115. Both the holding portion 114 and the holding portion 115 are provided on the back surface side of the base portion 111. That is, on the back surface side of the base portion 111, a plurality of, in this case, two arc-shaped wall portions 116 are provided so as to surround the periphery of the base end portion of the shaft portion 112. These wall portions 116 are arranged with a predetermined gap from the base end portion of the shaft portion 112, and a part of the elastic member 120, in this case, the base end portion of the elastic member main body portion 121 is placed in this gap. It is fitted.

そして、保持部１１４及び挟持部１１５は、この壁部１１６の両端部に分かれて設けられている。即ち、保持部１１４及び挟持部１１５は、樹脂部材１１０の軸心を挟んで相互に対向する２か所に分かれて設けられている。保持部１１４は、２つの壁部１１６の一端部から樹脂部材１１０の径方向に沿って延びる複数、この場合、２つの壁部１１４ａと、１つの梁部１１４ｂと、を備えている。２つの壁部１１４ａは、所定の間隔を有して離間しており、梁部１１４ｂは、これら壁部１１４ａの間に掛け渡されるようにして設けられている。 The holding portion 114 and the holding portion 115 are provided separately at both ends of the wall portion 116. That is, the holding portion 114 and the holding portion 115 are provided separately at two locations facing each other with the axial center of the resin member 110 interposed therebetween. The holding portion 114 includes a plurality of holding portions 114 extending along the radial direction of the resin member 110 from one end of the two wall portions 116, in this case, two wall portions 114a and one beam portion 114b. The two wall portions 114a are separated from each other with a predetermined distance, and the beam portion 114b is provided so as to be hung between the wall portions 114a.

このように構成される保持部１１４には、２つの壁部１１４ａの間に、弾性部材１２０のウイング部１２２ａ，１２２ｂうち何れか一方が嵌め込まれる。また、２つの壁部１１４ａの間に嵌め込まれたウイング部には、梁部１１４ｂが引っ掛けられるようにして対向する。これにより、保持部１１４は、弾性部材１２０のウイング部１２２ａ，１２２ｂうち何れか一方を引っ掛けるようにして保持する。なお、保持部１１４は、梁部１１４ｂを２つ以上の複数備える構成としてもよい。 One of the wing portions 122a and 122b of the elastic member 120 is fitted between the two wall portions 114a in the holding portion 114 configured in this way. Further, the beam portion 114b is hooked on the wing portion fitted between the two wall portions 114a so as to face each other. As a result, the holding portion 114 holds the elastic member 120 so as to hook one of the wing portions 122a and 122b. The holding portion 114 may be configured to include two or more beam portions 114b.

挟持部１１５は、２つの壁部１１６の他端部から樹脂部材１１０の径方向に沿って延びる複数、この場合、２つの壁部１１５ａを備えている。２つの壁部１１５ａは、所定の間隔を有して離間している。また、２つの壁部１１５ａの内壁面には、複数の凸部１１５ｂが設けられている。 The sandwiching portion 115 includes a plurality of sandwiching portions 115 extending along the radial direction of the resin member 110 from the other ends of the two wall portions 116, in this case, two wall portions 115a. The two wall portions 115a are separated from each other with a predetermined distance. Further, a plurality of convex portions 115b are provided on the inner wall surface of the two wall portions 115a.

このように構成される挟持部１１５には、２つの壁部１１５ａの間に、弾性部材１２０のウイング部１２２ａ，１２２ｂうち何れか他方が嵌め込まれる。また、２つの壁部１１５ａの間に嵌め込まれたウイング部は、その側部が凸部１１５ｂによって押し込まれる。これにより、挟持部１１５は、弾性部材１２０のウイング部１２２ａ，１２２ｂうち何れか他方を押圧状態で挟持して保持する。 One of the wing portions 122a and 122b of the elastic member 120 is fitted between the two wall portions 115a in the holding portion 115 configured in this way. Further, the side portion of the wing portion fitted between the two wall portions 115a is pushed by the convex portion 115b. As a result, the sandwiching portion 115 sandwiches and holds one of the wing portions 122a and 122b of the elastic member 120 in a pressed state.

以上のように構成されるキャップ１００において、特に図２に例示するように、弾性部材１２０は、樹脂部材１１０に取り付けられることでキャップ１００を構成するものであり、キャップ１００が液体注入部４に取り付けられた状態において、液体注入部４の内面に直接的に接触する構成要素となっている。そして、本実施形態に係るキャップ１００によれば、弾性部材１２０が樹脂部材１１０に接触する面積つまり樹脂部材側接触面積Ｓ１は、弾性部材１２０が液体注入部４の内周面に接触する面積つまり液体注入部側接触面積Ｓ２よりも大きくなった構成となっている。 In the cap 100 configured as described above, as illustrated in FIG. 2, the elastic member 120 constitutes the cap 100 by being attached to the resin member 110, and the cap 100 is attached to the liquid injection unit 4. In the attached state, it is a component that directly contacts the inner surface of the liquid injection unit 4. According to the cap 100 according to the present embodiment, the area where the elastic member 120 contacts the resin member 110, that is, the resin member side contact area S1, is the area where the elastic member 120 contacts the inner peripheral surface of the liquid injection portion 4. The structure is larger than the contact area S2 on the liquid injection portion side.

即ち、本実施形態に係るキャップ１００によれば、樹脂部材側接触面積Ｓ１は、弾性部材本体部１２１の内周面と軸部１１２の外周面とが接触する面積であり、一方、液体注入部側接触面積Ｓ２は、弾性部材本体部１２１の外周面と液体注入部４の内周面とが接触する面積であるが、樹脂部材側接触面積Ｓ１が液体注入部側接触面積Ｓ２よりも大きくなる構成となっている。 That is, according to the cap 100 according to the present embodiment, the resin member side contact area S1 is the area where the inner peripheral surface of the elastic member main body 121 and the outer peripheral surface of the shaft 112 come into contact with each other, while the liquid injection portion. The side contact area S2 is the area where the outer peripheral surface of the elastic member main body 121 and the inner peripheral surface of the liquid injection portion 4 are in contact with each other, but the resin member side contact area S1 is larger than the liquid injection portion side contact area S2. It is composed.

なお、樹脂部材側接触面積Ｓ１には、さらに、ウイング部１２２ａ，１２２ｂとベース部１１１とが接触する部分の面積を含めてもよい。また、樹脂部材側接触面積Ｓ１には、さらに、弾性部材本体部１２１の先端部と軸部１１２の先端部とが接触する部分の面積を含めてもよい。また、樹脂部材側接触面積Ｓ１には、その他、樹脂部材１１０と弾性部材１２０とが接触する部分の面積を含めてもよい。このような場合においても、樹脂部材側接触面積Ｓ１が液体注入部側接触面積Ｓ２よりも大きくなった大小関係が成立する。 The resin member side contact area S1 may further include the area of the portion where the wing portions 122a and 122b and the base portion 111 come into contact with each other. Further, the resin member side contact area S1 may further include the area of the portion where the tip end portion of the elastic member main body portion 121 and the tip end portion of the shaft portion 112 are in contact with each other. In addition, the contact area S1 on the resin member side may include the area of the portion where the resin member 110 and the elastic member 120 are in contact with each other. Even in such a case, a magnitude relationship is established in which the contact area S1 on the resin member side is larger than the contact area S2 on the liquid injection portion side.

また、図２に例示するように、キャップ１００が液体注入部４に取り付けられた状態において、換言すれば、樹脂部材１１０の軸部１１２が液体注入部４内に差し込まれた状態において、テーパ部１１２ａは、液体注入部４よりも内側つまり液体貯留タンク１の内部側に位置する。 Further, as illustrated in FIG. 2, in a state where the cap 100 is attached to the liquid injection portion 4, in other words, in a state where the shaft portion 112 of the resin member 110 is inserted into the liquid injection portion 4, the tapered portion The 112a is located inside the liquid injection unit 4, that is, on the inside side of the liquid storage tank 1.

また、図１及び図２に例示するように、液体貯留タンク１は、液体注入部４よりも前側に位置してガイド壁２００を備えている。このガイド壁２００は、傾斜抑制部の一例であり、液体注入部４からある程度離間した位置において、この場合、傾斜壁５の前端部から液体注入部４の突出方向に概ね沿うようにして前上方向に向かって延びている。このように構成されるガイド壁２００は、液体注入部４からキャップ１００が取り外されるときに、当該キャップ１００が液体注入部４の軸方向に対して傾斜すること、特に、前側に傾斜することを抑制する。 Further, as illustrated in FIGS. 1 and 2, the liquid storage tank 1 is provided with a guide wall 200 located in front of the liquid injection unit 4. This guide wall 200 is an example of an inclination suppressing portion, and in this case, at a position separated from the liquid injection portion 4 to some extent, in this case, the front upper portion is substantially along the projecting direction of the liquid injection portion 4 from the front end portion of the inclined wall 5. It extends in the direction. When the cap 100 is removed from the liquid injection portion 4, the guide wall 200 configured in this way tilts the cap 100 with respect to the axial direction of the liquid injection portion 4, in particular, tilts to the front side. Suppress.

以上に例示したキャップ１００によれば、弾性部材１２０が樹脂部材１１０に接触する面積Ｓ１は、弾性部材１２０が液体注入部４の内面に接触する面積Ｓ２よりも大きくなっている。そのため、キャップ１００を液体注入部４から取り外す際に、液体注入部４の内面と弾性部材１２０との間の摩擦力が、樹脂部材１１０と弾性部材１２０との間の摩擦力と拮抗あるいは上回ってしまうことを回避することができる。よって、キャップ１００を液体注入部４から取り外す際に、弾性部材１２０が樹脂部材１１０から外れてしまうことを抑制することができる。 According to the cap 100 exemplified above, the area S1 in which the elastic member 120 contacts the resin member 110 is larger than the area S2 in which the elastic member 120 contacts the inner surface of the liquid injection portion 4. Therefore, when the cap 100 is removed from the liquid injection unit 4, the frictional force between the inner surface of the liquid injection unit 4 and the elastic member 120 antagonizes or exceeds the frictional force between the resin member 110 and the elastic member 120. It is possible to avoid it. Therefore, it is possible to prevent the elastic member 120 from coming off from the resin member 110 when the cap 100 is removed from the liquid injection portion 4.

また、キャップ１００によれば、弾性部材１２０は、液体注入部４内に差し込まれる弾性部材本体部１２１と、弾性部材本体部１２１の側面から突出するウイング部１２２ａ，１２２ｂと、を備えている。一方、樹脂部材１１０は、ウイング部１２２ａ，１２２ｂのうち何れか一方を引っ掛けるようにして保持する保持部１１４と、ウイング部１２２ａ，１２２ｂのうち何れか他方を押圧状態で挟持する挟持部１１５と、を備えている。この構成によれば、樹脂部材１１０と弾性部材１２０との結合を一層強固にすることができ、キャップ１００を液体注入部４から取り外す際に、弾性部材１２０が樹脂部材１１０から外れてしまうことを一層抑制することができる。 Further, according to the cap 100, the elastic member 120 includes an elastic member main body 121 inserted into the liquid injection portion 4 and wing portions 122a and 122b protruding from the side surface of the elastic member main body 121. On the other hand, the resin member 110 includes a holding portion 114 that holds one of the wing portions 122a and 122b so as to be hooked, and a holding portion 115 that holds any one of the wing portions 122a and 122b in a pressed state. It has. According to this configuration, the bond between the resin member 110 and the elastic member 120 can be further strengthened, and the elastic member 120 can be separated from the resin member 110 when the cap 100 is removed from the liquid injection portion 4. It can be further suppressed.

なお、挟持部１１５においては、ウイング部が挟持されているだけなので、キャップ１００を液体注入部４から取り外す際に、ウイング部が挟持部１１５から外れてしまう可能性が懸念される。しかし、保持部１１４においては、ウイング部が梁部１１４ｂに引っ掛けられるようにして保持されている。そのため、仮に挟持部１１５からウイング部から外れたとしても、保持部１１４においてはウイング部を引っ掛けるようにして保持することができるので、弾性部材１２０が樹脂部材１１０から完全に外れてしまうこと、つまり、弾性部材１２０が樹脂部材１１０から分離してしまうことを抑制することができる。 Since the wing portion is only sandwiched in the sandwiching portion 115, there is a concern that the wing portion may come off from the sandwiching portion 115 when the cap 100 is removed from the liquid injection portion 4. However, in the holding portion 114, the wing portion is held so as to be hooked on the beam portion 114b. Therefore, even if the holding portion 115 is separated from the wing portion, the holding portion 114 can be held by hooking the wing portion, so that the elastic member 120 is completely detached from the resin member 110, that is, , It is possible to prevent the elastic member 120 from separating from the resin member 110.

また、キャップ１００によれば、弾性部材１２０の先端部、より具体的には、液体注入部４内に差し込まれる弾性部材本体部１２１の先端部は、平滑に形成されている。ここで、仮に、弾性部材本体部１２１の先端部に凹部や溝部などが存在すると、その部分に液体貯留タンク１内の液体が付着して滞留してしまうことが懸念される。本実施形態に係るキャップ１００によれば、液体貯留タンク１内の液体が弾性部材本体部１２１の先端部に付着したまま滞留してしまうことを抑制することができ、キャップ１００を液体注入部４から取り外す際に、弾性部材本体部１２１の先端部に付着した液体が飛び跳ねてしまうことを回避することができる。 Further, according to the cap 100, the tip portion of the elastic member 120, more specifically, the tip portion of the elastic member main body portion 121 inserted into the liquid injection portion 4 is formed smoothly. Here, if a recess or a groove is present at the tip of the elastic member main body 121, there is a concern that the liquid in the liquid storage tank 1 may adhere to and stay in that portion. According to the cap 100 according to the present embodiment, it is possible to prevent the liquid in the liquid storage tank 1 from staying while adhering to the tip end portion of the elastic member main body portion 121, and the cap 100 is attached to the liquid injection portion 4 It is possible to prevent the liquid adhering to the tip of the elastic member main body 121 from splashing when it is removed from the elastic member.

また、キャップ１００によれば、弾性部材本体部１２１の側面部は平滑に形成されており、弾性部材本体部１２１の側面部が接触する液体注入部４の内周面も平滑に形成されている。この構成によれば、キャップ１００が液体注入部４に取り付けられた状態において、弾性部材本体部１２１の側面部と液体注入部４の内周面とが一層密着した状態を形成することができ、弾性部材１２０によるシール性の向上を図ることができる。 Further, according to the cap 100, the side surface portion of the elastic member main body 121 is formed smoothly, and the inner peripheral surface of the liquid injection portion 4 with which the side surface portion of the elastic member main body 121 contacts is also formed smoothly. .. According to this configuration, in a state where the cap 100 is attached to the liquid injection portion 4, it is possible to form a state in which the side surface portion of the elastic member main body portion 121 and the inner peripheral surface of the liquid injection portion 4 are in closer contact with each other. The sealing property can be improved by the elastic member 120.

また、キャップ１００によれば、樹脂部材１１０のベース部１１１は、Ｄカット面１１１ａを有している。この構成によれば、液体注入部４から取り外したキャップ１００をテーブルなどの上に載置したときに、当該キャップ１００が転がることを抑制することができ、キャップ１００の紛失や落下による破損などを回避することができる。また、万が一、キャップ１００が誤飲されたとしても、Ｄカット面１１１ａにより気道を確保することが期待できる。なお、使用者においては、キャップ１００の誤飲が発生しないよう、十分に注意を払うべきである。 Further, according to the cap 100, the base portion 111 of the resin member 110 has a D-cut surface 111a. According to this configuration, when the cap 100 removed from the liquid injection unit 4 is placed on a table or the like, it is possible to prevent the cap 100 from rolling, and the cap 100 may be lost or damaged due to dropping. It can be avoided. Further, even if the cap 100 is accidentally swallowed, it can be expected that the airway is secured by the D-cut surface 111a. The user should be careful not to accidentally swallow the cap 100.

また、キャップ１００は、樹脂部材１１０の軸部１１２を弾性部材１２０の弾性部材本体部１２１に差し込む構成となっている。この構成によれば、樹脂部材１１０の軸部１１２によって弾性部材１２０の弾性部材本体部１２１を押し広げることができ、キャップ１００が液体注入部４内に差し込まれた状態において、弾性部材本体部１２１の側周面を液体注入部４の内周面に押し付けるようにしてシール性の向上を図ることができる。なお、孔部１２１ａの開口径は、軸部１１２の径寸法よりも若干短くするとよい。これにより、確実に軸部１１２によって弾性部材本体部１２１を押し広げることができ、シール性の一層の向上を図ることができる。 Further, the cap 100 has a configuration in which the shaft portion 112 of the resin member 110 is inserted into the elastic member main body portion 121 of the elastic member 120. According to this configuration, the elastic member main body 121 of the elastic member 120 can be pushed open by the shaft portion 112 of the resin member 110, and the elastic member main body 121 is in a state where the cap 100 is inserted into the liquid injection portion 4. The sealing property can be improved by pressing the side peripheral surface of the liquid injection portion 4 against the inner peripheral surface of the liquid injection portion 4. The opening diameter of the hole 121a may be slightly shorter than the diameter of the shaft 112. As a result, the elastic member main body 121 can be reliably pushed by the shaft 112, and the sealing property can be further improved.

また、キャップ１００によれば、樹脂部材１１０の軸部１１２が液体注入部４内に差し込まれた状態において、当該軸部１１２のテーパ部１１２ａは、液体注入部４の基端４ｂよりもインク室３内側に位置する。この構成によれば、液体注入部４の内周面全体に対し弾性部材本体部１２１の側周面を接触させることができ、キャップ１００によるシール性の一層の向上を図ることができる。また、液体注入部４の内周面全域に対し弾性部材本体部１２１を均一に接触させることができ、液体注入部４の内周面と弾性部材本体部１２１の側周面とが接触する全域において均一なシール性を発揮することができる。なお、仮に、軸部１１２のテーパ部１１２ａが液体注入部４の基端４ｂよりもインク室３外側に位置する構成では、少なくとも当該テーパ部１１２ａに対応する部分おいて弾性部材本体部１２１が液体注入部４の内周面に接触することができず、従って、液体注入部４の内周面全域にわたって均一なシール性を発揮することはできない。 Further, according to the cap 100, in a state where the shaft portion 112 of the resin member 110 is inserted into the liquid injection portion 4, the tapered portion 112a of the shaft portion 112 has a larger ink chamber than the base end 4b of the liquid injection portion 4. 3 Located inside. According to this configuration, the side peripheral surface of the elastic member main body 121 can be brought into contact with the entire inner peripheral surface of the liquid injection portion 4, and the sealing property of the cap 100 can be further improved. Further, the elastic member main body 121 can be uniformly brought into contact with the entire inner peripheral surface of the liquid injection portion 4, and the entire area where the inner peripheral surface of the liquid injection portion 4 and the side peripheral surface of the elastic member main body 121 come into contact with each other. Can exhibit uniform sealing properties. If the tapered portion 112a of the shaft portion 112 is located outside the ink chamber 3 from the base end 4b of the liquid injection portion 4, the elastic member main body portion 121 is liquid at least in the portion corresponding to the tapered portion 112a. It is not possible to contact the inner peripheral surface of the injection unit 4, and therefore, it is not possible to exhibit uniform sealing properties over the entire inner peripheral surface of the liquid injection unit 4.

また、キャップ１００によれば、使用者が持つ把持部１１３が円柱状に形成されている。この構成によれば、使用者は、把持部１１３を持ってキャップ１００を周方向に回転させることは難しく、把持部１１３を持ってキャップ１００を手前側に引き抜くように操作することが促されるようになる。これにより、キャップ１００が液体注入部４の軸方向に沿って取り外されること、換言すれば、キャップ１００が液体注入部４に対して垂直に取り外されることを促進することができ、キャップ１００が取り外される際に弾性部材１２０に無理な変形が生じてしまうこと、ひいては、弾性部材１２０に応力が集中して当該弾性部材１２０が樹脂部材１１０から外れてしまうことを抑制することができる。 Further, according to the cap 100, the grip portion 113 held by the user is formed in a columnar shape. According to this configuration, it is difficult for the user to hold the grip portion 113 to rotate the cap 100 in the circumferential direction, and the user is encouraged to hold the grip portion 113 and operate the cap 100 to be pulled out toward the front side. become. This can facilitate the removal of the cap 100 along the axial direction of the liquid injection section 4, in other words, the cap 100 being removed perpendicular to the liquid injection section 4, and the cap 100 is removed. It is possible to prevent the elastic member 120 from being unreasonably deformed at that time, and to prevent the elastic member 120 from being detached from the resin member 110 due to stress concentration on the elastic member 120.

また、本実施形態に係る液体貯留タンク１によれば、液体注入部４からキャップ１００が取り外されるときに、当該キャップ１００が液体注入部４の軸方向に対して傾斜することをガイド壁２００によって抑制することができる。よって、キャップ１００を液体貯留タンク１の液体注入部４から取り外す際に、弾性部材１２０が樹脂部材１１０から外れてしまうことを抑制することができる。 Further, according to the liquid storage tank 1 according to the present embodiment, when the cap 100 is removed from the liquid injection unit 4, the guide wall 200 indicates that the cap 100 is inclined with respect to the axial direction of the liquid injection unit 4. It can be suppressed. Therefore, it is possible to prevent the elastic member 120 from coming off from the resin member 110 when the cap 100 is removed from the liquid injection portion 4 of the liquid storage tank 1.

なお、本開示は、上述した一実施形態に限定されず、その要旨を逸脱しない範囲において種々の変形や拡張を行うことができる。例えば、キャップ１００は、弾性部材１２０が樹脂部材１１０に接触する面積を、弾性部材１２０が液体注入部４の内面に接触する面積よりも大きくできる構成であれば、各部の形状や大きさなどを適宜変更して実施することができる。また、樹脂部材１１０を構成する樹脂材、弾性部材１２０を構成するラバー材は、適宜選択して実施することができる。 The present disclosure is not limited to the above-described embodiment, and various modifications and extensions can be made without departing from the gist thereof. For example, if the cap 100 has a configuration in which the area where the elastic member 120 contacts the resin member 110 can be made larger than the area where the elastic member 120 contacts the inner surface of the liquid injection portion 4, the shape and size of each portion can be adjusted. It can be changed as appropriate. Further, the resin material constituting the resin member 110 and the rubber material constituting the elastic member 120 can be appropriately selected and implemented.

１：液体貯留タンク、４：液体注入部、１００：キャップ、１１０：樹脂部材、１２０：弾性部材、１１１：ベース部、１１２：軸部、１１２ａ：テーパ部、１１３：把持部、１１４：保持部、１１５：挟持部、１２１：弾性部材本体部、１２２ａ，１２２ｂ：ウイング部、２００：ガイド壁（傾斜抑制部） 1: Liquid storage tank 4: Liquid injection part, 100: Cap, 110: Resin member, 120: Elastic member, 111: Base part, 112: Shaft part, 112a: Tapered part, 113: Grip part, 114: Holding part , 115: Holding part, 121: Elastic member main body part, 122a, 122b: Wing part, 200: Guide wall (tilt suppressing part)

Claims (9)

液体を貯留する液体貯留タンクの液体注入部を閉塞するキャップであって、
樹脂材で構成される樹脂部材と、
ラバー材で構成される弾性部材と、
を備え、
前記弾性部材は、前記樹脂部材に取り付けられ、前記液体注入部の内面に直接接触するものであり、
前記弾性部材が前記樹脂部材に接触する面積は、前記弾性部材が前記液体注入部の内面に接触する面積よりも大きいことを特徴とする液体貯留タンクのキャップ。 A cap that closes the liquid injection part of the liquid storage tank that stores liquid.
Resin members made of resin material and
Elastic members made of rubber material and
With
The elastic member is attached to the resin member and is in direct contact with the inner surface of the liquid injection portion.
A cap of a liquid storage tank, characterized in that the area of the elastic member in contact with the resin member is larger than the area of the elastic member in contact with the inner surface of the liquid injection portion. 前記弾性部材は、
前記液体注入部内に差し込まれる弾性部材本体部と、
前記弾性部材本体部の側面から突出するウイング部と、
を備え、
前記樹脂部材は、
前記ウイング部を保持する保持部と、
前記ウイング部を押圧状態で挟持する挟持部と、
を備えることを特徴とする請求項１に記載の液体貯留タンクのキャップ。 The elastic member is
The elastic member main body inserted into the liquid injection part and
A wing portion protruding from the side surface of the elastic member main body portion and a wing portion
With
The resin member is
A holding part that holds the wing part and
A holding portion that holds the wing portion in a pressed state, and a holding portion.
The cap of the liquid storage tank according to claim 1, wherein the liquid storage tank cap comprises. 前記弾性部材本体部の先端部は、平滑に形成されていることを特徴とする請求項２に記載の液体貯留タンクのキャップ。 The cap of the liquid storage tank according to claim 2, wherein the tip end portion of the elastic member main body portion is formed smoothly. 前記弾性部材本体部の側面部は、平滑に形成されており、
前記弾性部材本体部の側面部が接触する前記液体注入部の内面も、平滑に形成されていることを特徴とする請求項２または３に記載の液体貯留タンクのキャップ。 The side surface portion of the elastic member main body portion is formed smoothly.
The cap of the liquid storage tank according to claim 2 or 3, wherein the inner surface of the liquid injection portion with which the side surface portion of the elastic member main body contacts is also formed smoothly. 前記樹脂部材は、ベース部を有し、
前記ベース部は、円形状の端部の一部を直線状に切り欠いた形状をなしていることを特徴とする請求項１から４の何れか１項に記載の液体貯留タンクのキャップ。 The resin member has a base portion and has a base portion.
The cap of a liquid storage tank according to any one of claims 1 to 4, wherein the base portion has a shape in which a part of a circular end portion is cut out in a straight line. 前記樹脂部材は、軸部を有し、
前記軸部は、前記弾性部材に差し込まれていることを特徴とする請求項１から５の何れか１項に記載の液体貯留タンクのキャップ。 The resin member has a shaft portion and has a shaft portion.
The cap of a liquid storage tank according to any one of claims 1 to 5, wherein the shaft portion is inserted into the elastic member. 前記樹脂部材は、前記軸部の先端部にテーパ部を有し、
前記軸部が前記液体注入部内に差し込まれた状態において、前記テーパ部は、前記液体注入部よりも内側に位置することを特徴とする請求項１から６の何れか１項に記載の液体貯留タンクのキャップ。 The resin member has a tapered portion at the tip of the shaft portion and has a tapered portion.
The liquid storage according to any one of claims 1 to 6, wherein the tapered portion is located inside the liquid injection portion when the shaft portion is inserted into the liquid injection portion. Tank cap. 前記樹脂部材は、使用者が持つ把持部を有し、
前記把持部は、円柱状に形成されている請求項１から７の何れか１項に記載の液体貯留タンクのキャップ。 The resin member has a grip portion held by the user and has a grip portion.
The cap of the liquid storage tank according to any one of claims 1 to 7, wherein the grip portion is formed in a columnar shape. 請求項１から８の何れか１項に記載のキャップによって液体注入部を閉塞可能な液体貯留タンクであって、
前記液体注入部から前記キャップが取り外されるときに、前記キャップが前記液体注入部の軸方向に対して傾斜することを抑制する傾斜抑制部を備えることを特徴とする液体貯留タンク。 A liquid storage tank in which the liquid injection portion can be closed by the cap according to any one of claims 1 to 8.
A liquid storage tank comprising an inclination suppressing portion that prevents the cap from tilting with respect to the axial direction of the liquid injection portion when the cap is removed from the liquid injection portion.
JP2020060209A 2020-03-30 2020-03-30 Cap of liquid storage tank, and liquid storage tank Pending JP2021154708A (en)

Priority Applications (2)

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CN202110329658.7A CN113459673A (en) 2020-03-30 2021-03-26 Cover of liquid storage tank and liquid storage tank

Applications Claiming Priority (1)

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