JP2015107807A - Liquid discharger - Google Patents

Liquid discharger Download PDF

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JP2015107807A
JP2015107807A JP2013250364A JP2013250364A JP2015107807A JP 2015107807 A JP2015107807 A JP 2015107807A JP 2013250364 A JP2013250364 A JP 2013250364A JP 2013250364 A JP2013250364 A JP 2013250364A JP 2015107807 A JP2015107807 A JP 2015107807A
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liquid
opening
closing
ejection tool
closing member
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宮坂 義政
Yoshimasa Miyasaka
義政 宮坂
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Abstract

PROBLEM TO BE SOLVED: To provide a liquid discharger that can control linearly discharge amounts and moreover complete the control by almost one rotation thereof.SOLUTION: A liquid discharger 1 comprises: a supply hole member 2 to be connected to a supply source of liquid; a liquid injection hole member 3 that is connected to the supply hole member 2 and injects liquid to an object to be injected with the liquid; a liquid flow path 4, provided in an inner space between the supply hole member 2 and the liquid injection hole member 3, into which the liquid flows; an opening/closing member 5 for opening and closing the liquid flow path 4; and an operating member 6 that operates the opening/closing member 5. The opening/closing member 5 is reciprocally moved in the liquid flow path 4 by a cam mechanism. The cam mechanism has a cam groove provided on an outer periphery of the opening/closing member 5 and a protrusion that is provided in the operating member 6 and fitted to the cam groove, where rotation ranges of the operating member 6 are set to be between 90 degrees and 270 degrees.

Description

本発明は、液体吐出具に関する。   The present invention relates to a liquid ejection tool.

従来より、液体収容缶に収容された液体は、この液体収容缶の吐出口に装着された液体吐出具を介して外部に適量だけ吐出される。特許文献1に開示されている液体吐出具は、液体収容缶の吐出口に着脱自在に装着され、ドレインコックの取手部を回転させることにより液体の吐出量を調整している。   Conventionally, an appropriate amount of liquid stored in a liquid storage can is discharged to the outside through a liquid discharge tool attached to the discharge port of the liquid storage can. The liquid discharge tool disclosed in Patent Document 1 is detachably attached to the discharge port of the liquid container, and adjusts the liquid discharge amount by rotating the handle of the drain cock.

特開2004−123202号公報(発明の詳細な説明)JP 2004-123202 A (Detailed description of the invention)

しかしながら、特許文献1に開示されている液体吐出具では、液体を排出させる排出口はこの液体吐出器具に一体的に形成されている。このため、液体吐出具を液体収容缶に取り付ける際には、排出口が下を向くように取り付ける必要があり、液体吐出具の取り付け作業に注意を要することになる。また、流出量をリニアに調節しがたいものとなっている。   However, in the liquid discharge tool disclosed in Patent Document 1, the discharge port for discharging the liquid is formed integrally with the liquid discharge device. For this reason, when attaching the liquid ejection tool to the liquid container, it is necessary to attach the liquid ejection tool so that the discharge port faces downward. Moreover, it is difficult to adjust the outflow amount linearly.

また、液体吐出具には液体を注出させるための液注パイプが取り付けられることがあるが、この液注パイプは取り外し可能であることが簡単にわかる構成とされている。このため、液注パイプは取り外されてしまうことが生じやすい。また、液体は排出口や液注パイプを通じて下方に向かって吐出されるため、吐出終了後も排出口や液注パイプの内部に残留している液体が液体吐出具からこぼれ落ちるといった事態が生じる。   In addition, a liquid injection pipe for discharging liquid may be attached to the liquid ejection tool, and the liquid injection pipe can be easily removed. For this reason, the liquid injection pipe is likely to be removed. In addition, since the liquid is discharged downward through the discharge port and the liquid injection pipe, the liquid remaining inside the discharge port and the liquid injection pipe may spill from the liquid discharge tool even after the end of the discharge.

本発明は、かかる問題に鑑みてなされたものであり、その目的とするところは、上述した問題点の1つまたは複数を解決した液体吐出具を提供しようとするものである。   The present invention has been made in view of such problems, and an object of the present invention is to provide a liquid ejection tool that solves one or more of the problems described above.

本発明は、液体の供給元に接続される供給孔部材と、供給孔部材に接続され、液体の注液先に液体を注液する注液孔部材と、供給孔部材と注液孔部材の内部空間に設けられ、液体が流れていく液体流路と、液体流路を開閉する開閉部材と、開閉部材を操作する操作部材と、を有する液体吐出具において、開閉部材は、カム機構によって液体流路内を往復動作し、カム機構は、開閉部材の外周に設けられるカム溝と、操作部材に設けられカム溝に嵌合する突起とを有し、操作部材の回動範囲が90度〜270度であるものである。   The present invention relates to a supply hole member connected to a liquid supply source, a liquid injection hole member connected to the supply hole member, for injecting liquid into a liquid injection destination, a supply hole member, and a liquid injection hole member. In a liquid discharge tool provided in an internal space and having a liquid channel through which a liquid flows, an opening / closing member that opens and closes the liquid channel, and an operation member that operates the opening / closing member, the opening / closing member is liquid by a cam mechanism. The cam mechanism reciprocates in the flow path, and the cam mechanism has a cam groove provided on the outer periphery of the opening and closing member and a protrusion provided on the operation member and fitted in the cam groove, and the rotation range of the operation member is 90 degrees to It is 270 degrees.

上述の本発明の液体吐出具において、注液孔部材は、供給孔部材と接続される第1の端部と、注液孔となる第2の端部と、操作部材が配置される第3の端部と、を有し、第1の端部は、開閉部材の往復動作方向と直交する方向に設けられ、第2の端部と第3の端部は、開閉部材の往復動作方向に沿って設けられ、開閉部材が第3の端部に係合し、第2の端部の方向に移動することにより注液を停止するようにすることができる。   In the liquid ejection tool of the present invention described above, the liquid injection hole member includes a first end connected to the supply hole member, a second end serving as the liquid injection hole, and a third where the operation member is disposed. The first end is provided in a direction orthogonal to the reciprocating direction of the opening / closing member, and the second end and the third end are provided in the reciprocating direction of the opening / closing member. It is possible to stop the injection by moving along the third end portion and moving in the direction of the second end portion.

上述の本発明の液体吐出具において、開閉部材は、液体流路を塞ぐ栓部材と、外周にカム溝が形成され、内側に、回り止め用の凸部を有すると共に栓部材が配置される大径部材と、を有し、大径部材の内側と栓部材の外側の一部との間に、第3の端部が入り込み、第3の端部の外周には、回り止め用の凸部と嵌合する溝が設けられるようにすることができる。   In the above-described liquid discharge tool of the present invention, the opening / closing member includes a plug member that closes the liquid flow path, a cam groove formed on the outer periphery, a protrusion for preventing rotation on the inside, and a plug member disposed on the inside. A third end portion is inserted between the inside of the large-diameter member and a part of the outer side of the plug member, and a protrusion for preventing rotation on the outer periphery of the third end portion. And a groove to be fitted can be provided.

上述の本発明の液体吐出具において、注液孔部材は、第1の端部と第2の端部と第3の端部とが一体成形により形成され、開閉部材の案内と液体の吐出とを兼ね備えることができる。   In the above-described liquid ejection tool of the present invention, the liquid injection hole member is formed by integrally molding the first end, the second end, and the third end, and guides the opening / closing member and discharges the liquid. Can be combined.

上述の本発明の液体吐出具において、カム溝を対称に2つ設け、突起を2つ設け、開閉部材が注液孔を塞いだ状態にあるときに、各カム溝に嵌合する各突起が入り込む位置の付近の各カム溝と操作部材の回動方向との成す角は、それ以外の位置の各カム溝と操作部材の回動方向との成す角よりも小さくし、各カム溝の周方向の範囲を、100度〜170度とすることが好ましい。   In the above-described liquid ejection tool of the present invention, when the cam groove is provided symmetrically and the two protrusions are provided, and the opening / closing member closes the liquid injection hole, The angle formed between each cam groove near the entering position and the rotation direction of the operation member is smaller than the angle formed between each cam groove at other positions and the rotation direction of the operation member. The range of the direction is preferably 100 degrees to 170 degrees.

本発明によれば、吐出量をリニアに制御でき、しかもほとんど一回の回転内でその操作を完了することができる。   According to the present invention, the discharge amount can be controlled linearly, and the operation can be completed within almost one rotation.

本発明の実施の形態に係る液体吐出具の利用形態を示す図であり、タンクの取付部を示すために液体吐出具の供給孔部材の一部を切り欠いて示す図である。It is a figure which shows the utilization form of the liquid discharge tool which concerns on embodiment of this invention, and is a figure which notches and shows a part of supply hole member of a liquid discharge tool in order to show the attaching part of a tank. 本発明の実施の形態に係る液体吐出具の全体構成図であり、液体吐出具の斜視図である。1 is an overall configuration diagram of a liquid ejection tool according to an embodiment of the present invention, and is a perspective view of the liquid ejection tool. 本発明の実施の形態に係る液体吐出具の全体構成図であり、液体吐出具の側断面図である。1 is an overall configuration diagram of a liquid ejection tool according to an embodiment of the present invention, and is a side sectional view of the liquid ejection tool. 図2,3の液体吐出具の構成部材のうち供給孔部材の側断面図である。It is a sectional side view of a supply hole member among the structural members of the liquid ejection tool of FIGS. 図2,3の液体吐出具の構成部材のうち注液部材の斜視図である。It is a perspective view of a liquid injection member among the structural members of the liquid discharge tool of FIG. 図2,3の液体吐出具の構成部材のうち注液部材の側断面図である。It is a sectional side view of a liquid injection member among the structural members of the liquid discharge tool of FIG. 図6の注液部材の上面図および上面図の一部拡大図である。FIG. 7 is a top view of the liquid injection member in FIG. 6 and a partially enlarged view of the top view. 図3の液体吐出具の構成部材のうち開閉部材の側断面図である。It is a sectional side view of an opening / closing member among the structural members of the liquid ejection tool of FIG. 図8の開閉部材のうち栓部材の斜視図である。It is a perspective view of a plug member among the opening-and-closing members of FIG. 図9の栓部材の側断面図である。It is a sectional side view of the stopper member of FIG. 図8の開閉部材のうち大径部材の斜視図である。It is a perspective view of a large diameter member among the opening-and-closing members of FIG. 図11の大径部材に設けられるカム溝を示す図である。It is a figure which shows the cam groove provided in the large diameter member of FIG. 図11の大径部材の側断面図である。It is a sectional side view of the large diameter member of FIG. 図11の大径部材の上面図、側面図、および下面図である。FIG. 12 is a top view, a side view, and a bottom view of the large-diameter member of FIG. 11. 図2,3の液体吐出具の構成部材のうち操作部材の側断面図である。It is a sectional side view of an operation member among the structural members of the liquid discharge tool of FIG. その他の実施の形態に係る注液部材の注液孔付近を示す図である。It is a figure which shows the liquid injection hole vicinity of the liquid injection member which concerns on other embodiment.

本発明の実施の形態に係る液体吐出具1を図1〜図9を参照しながら説明する。   A liquid ejection tool 1 according to an embodiment of the present invention will be described with reference to FIGS.

最初に、液体吐出具1の利用形態について、図1を参照しながら説明する。液体吐出具1は、図1に示すように、たとえばタンクTなどに取り付けて使用される。タンクTのキャップCを取り外して、タンクT内には、ホースなどにより水等が供給される。タンクTには、液体吐出具1を取り付けるための取付部Sが設けられる。図1では、取付部Sを示すために、液体吐出具1の供給孔部材の一部を切り欠いて示している。また、図1の例では、タンクTは、台座Bの上に載置されている。液体吐出具1は、たとえば、液体吐出具1の下方に置かれた不図示の別のタンクやコップなどに、タンクT内の水等を吐出して供給することができる。なお、水は一例であり、水に代えて油やアルコールなどの他の液体であってもよい。   Initially, the usage form of the liquid discharge tool 1 is demonstrated, referring FIG. As shown in FIG. 1, the liquid ejection tool 1 is used by being attached to a tank T, for example. The cap C of the tank T is removed, and water or the like is supplied into the tank T by a hose or the like. The tank T is provided with an attachment portion S for attaching the liquid ejection tool 1. In FIG. 1, in order to show the attachment portion S, a part of the supply hole member of the liquid ejection tool 1 is cut out. In the example of FIG. 1, the tank T is placed on the base B. The liquid discharge tool 1 can discharge and supply water or the like in the tank T to another tank or cup (not shown) placed below the liquid discharge tool 1, for example. Water is an example, and other liquids such as oil and alcohol may be used instead of water.

次に、液体吐出具1の全体構成について、図2と図3を参照しながら説明する。   Next, the overall configuration of the liquid ejection tool 1 will be described with reference to FIGS. 2 and 3.

液体吐出具1は、図2と図3に示すように、液体の供給元であるタンクTに接続される供給孔部材2と、供給孔部材2に接続され、液体の注液先に液体を注液する注液孔部材3と、供給孔部材2と注液孔部材3の内部空間に設けられ、液体が流れていく液体流路4と、液体流路4を開閉する開閉部材5と、開閉部材5の開閉動作を操作する操作部材6と、を有する。なお、以下の説明では、液体吐出具1の上部とは、操作部材6が配置される側を指し、下部とは、液体流路4の出口側を指す。また、液体吐出具1の後部とは、供給孔部材2が配置される側を指し、前部とは、注液部材3の供給孔部材2が配置される側の反対側を指す。また、液体吐出具1の後部から見て左右を液体吐出具1の左右とする。   As shown in FIGS. 2 and 3, the liquid ejection tool 1 is connected to a supply hole member 2 connected to a tank T that is a liquid supply source, and to the supply hole member 2. A liquid injection hole member 3 for liquid injection, a liquid flow path 4 through which the liquid flows provided in an internal space of the supply hole member 2 and the liquid injection hole member 3; an opening and closing member 5 for opening and closing the liquid flow path 4; And an operation member 6 for operating an opening / closing operation of the opening / closing member 5. In the following description, the upper part of the liquid ejection tool 1 refers to the side on which the operation member 6 is disposed, and the lower part refers to the outlet side of the liquid flow path 4. Moreover, the rear part of the liquid ejection tool 1 refers to the side where the supply hole member 2 is disposed, and the front part refers to the opposite side of the liquid injection member 3 from the side where the supply hole member 2 is disposed. Further, the left and right sides when viewed from the rear of the liquid ejection tool 1 are the left and right sides of the liquid ejection tool 1.

次に、供給孔部材2について、図4を参照しながら説明する。   Next, the supply hole member 2 will be described with reference to FIG.

図4に示すように、供給孔部材2は、一方の端部2a、他方の端部2b、および両端部2a,2bの間に位置する中継部2cを有する。端部2aは、円形の開口部L1を有する円筒形状である。開口部L1の直径は、図1に示すタンクTの取付部Sの外径よりも若干大きい。端部2aの内周には、タンクTの取付部Sのネジ溝と嵌合するネジ溝8を有する。   As shown in FIG. 4, the supply hole member 2 has one end portion 2a, the other end portion 2b, and a relay portion 2c positioned between both end portions 2a and 2b. The end 2a has a cylindrical shape having a circular opening L1. The diameter of the opening L1 is slightly larger than the outer diameter of the mounting portion S of the tank T shown in FIG. On the inner periphery of the end 2a, there is a thread groove 8 that fits into the thread groove of the mounting portion S of the tank T.

さらに、端部2aの内側の奥部(すなわち開口部L1の反対側)には、タンクTの取付部Sの縁と当接するリング状のパッキング部材9を有する。パッキング部材9の材質は、ゴムまたはシリコン等である。また、パッキング部材9は、端部2aの内側の奥部に設けられるリング状の溝10内に載置される。溝10は、端部2aの内面により溝10の一方の側壁と底面が形成され、リング状の環状突起10aの外壁により溝10の他方の側壁が形成される。   Furthermore, a ring-shaped packing member 9 that abuts against the edge of the mounting portion S of the tank T is provided in the inner back portion of the end portion 2a (that is, on the side opposite to the opening L1). The material of the packing member 9 is rubber or silicon. Further, the packing member 9 is placed in a ring-shaped groove 10 provided in the inner back portion of the end portion 2a. In the groove 10, one side wall and the bottom surface of the groove 10 are formed by the inner surface of the end 2 a, and the other side wall of the groove 10 is formed by the outer wall of the ring-shaped annular protrusion 10 a.

さらに、端部2aの外周には、供給孔部材2をタンクTの取付部Sにねじ込む際の手指の滑り止のための凸凹部11が設けられる。凸凹部11は、軸方向に並列に配置された複数の凸部11aと、その凸部11aの間に設けられる凹部11bとから形成される。   Furthermore, a convex concave portion 11 is provided on the outer periphery of the end portion 2a for preventing a finger from slipping when the supply hole member 2 is screwed into the mounting portion S of the tank T. The convex recess 11 is formed by a plurality of convex portions 11a arranged in parallel in the axial direction and a concave portion 11b provided between the convex portions 11a.

供給孔部材2の端部2bは、円形の開口部L2を有する円筒形状である。開口部L2の直径は、後述する注液部材3の端部3a(図5,図6参照)の外径よりも若干大きい。図3の例では、開口部L2の直径は、開口部L1の直径よりも小さい。端部2bの内周には、注液部材3の端部3aが挿入されて取り付けられる。このとき、後述する注液部材3の端部3aがOリング16,17(図6参照)を介して端部2b内に挿入されるため、端部2bの内面は、Oリング16,17の密着性を高めるように滑らかであることが好ましい。   The end 2b of the supply hole member 2 has a cylindrical shape having a circular opening L2. The diameter of the opening L2 is slightly larger than the outer diameter of an end 3a (see FIGS. 5 and 6) of the liquid injection member 3 described later. In the example of FIG. 3, the diameter of the opening L2 is smaller than the diameter of the opening L1. The end 3a of the liquid injection member 3 is inserted and attached to the inner periphery of the end 2b. At this time, since an end portion 3a of the liquid injection member 3 described later is inserted into the end portion 2b via the O-rings 16 and 17 (see FIG. 6), the inner surface of the end portion 2b It is preferably smooth so as to enhance the adhesion.

供給孔部材2の端部2aと端部2bとの間は、円筒状の中継部2cによって連結される。このとき、中継部2cと端部2bとの境界には、挿入される注液部材3の端部3aの爪部20(後述)が嵌合する段差13が設けられる。なお、図4の例では、中継部2cは、端部2aから端部2bに向かう途中で内側に折れ曲がっているがこれは一例である。たとえば、中継部2cは、端部2aから端部2bに向かって折れ曲がることなく直線的に連結されてもよい。あるいは、中継部2cは、全てが円錐状となっていてもよい。もしくは、中継部2cは省略してもよい。   The end portion 2a and the end portion 2b of the supply hole member 2 are connected by a cylindrical relay portion 2c. At this time, a step 13 is provided at the boundary between the relay portion 2c and the end portion 2b, in which a claw portion 20 (described later) of the end portion 3a of the liquid injection member 3 to be inserted is fitted. In the example of FIG. 4, the relay portion 2c is bent inward on the way from the end portion 2a to the end portion 2b, but this is an example. For example, the relay part 2c may be connected linearly without bending from the end part 2a toward the end part 2b. Alternatively, all of the relay part 2c may be conical. Alternatively, the relay unit 2c may be omitted.

次に、注液部材3について、図5から図7を参照しながら説明する。   Next, the liquid injection member 3 will be described with reference to FIGS.

図5と図6に示すように、注液孔部材3は、供給孔部材2と接続される端部3aと、注液孔14を有する端部3bと、開閉部材5が内部を往復動作すると共に、操作部材6が配置される端部3cと、を有する。   As shown in FIGS. 5 and 6, the liquid injection hole member 3 includes an end 3 a connected to the supply hole member 2, an end 3 b having the liquid injection hole 14, and the opening / closing member 5 reciprocates inside. And an end portion 3c on which the operation member 6 is disposed.

端部3aは、開閉部材5の往復動作方向と直交する方向に設けられる。すなわち、端部3aは、端部3bおよび端部3cが並ぶ方向とは直交する方向に設けられる。また、端部3bおよび端部3cは、開閉部材5の往復動作方向に沿って設けられる。   The end 3 a is provided in a direction orthogonal to the reciprocating direction of the opening / closing member 5. That is, the end 3a is provided in a direction orthogonal to the direction in which the end 3b and the end 3c are arranged. The end 3b and the end 3c are provided along the reciprocating direction of the opening / closing member 5.

図6に示すように、端部3aは、円形の開口部L3を有する円筒形状である。開口部L3の直径は、開口部L2の直径よりも小さい。端部3aの外周には、Oリング16,17と、Oリング16,17の略半分が嵌め込まれるリング状の溝18,19とを有する。溝18,19の形状は、矩形でも半円形でもよい。Oリング18,19は、供給孔部材2の中継部2cから端部3aの外周面を伝って外部へ液体が漏洩するのを阻止する。なお、Oリング18,19のうち、一方については省略してもよい。また逆に3つ以上のOリングとしてもよい。   As shown in FIG. 6, the end 3a has a cylindrical shape having a circular opening L3. The diameter of the opening L3 is smaller than the diameter of the opening L2. On the outer periphery of the end portion 3a, there are O-rings 16 and 17, and ring-shaped grooves 18 and 19 into which substantially half of the O-rings 16 and 17 are fitted. The shape of the grooves 18 and 19 may be rectangular or semicircular. The O-rings 18 and 19 prevent liquid from leaking to the outside from the relay portion 2c of the supply hole member 2 along the outer peripheral surface of the end portion 3a. One of the O-rings 18 and 19 may be omitted. Conversely, three or more O-rings may be used.

また、端部3aの開口部15の縁には、供給孔部材2の段差13と嵌合する爪部20が2個設けられる。さらに、端部3aの外周には、供給孔部材2の端部2bの開口部L2の縁に当接する凸部21がリング状に設けられる。すなわち、端部3aは、段差13に嵌合する爪部20と端部2bの縁に当接する凸部21の双方の間に端部2bを挟み込むことによって供給孔部材2に固定される。   Further, two claw portions 20 that are fitted to the step 13 of the supply hole member 2 are provided at the edge of the opening portion 15 of the end portion 3a. Furthermore, the convex part 21 contact | abutted to the edge of the opening part L2 of the edge part 2b of the supply hole member 2 is provided in the ring shape in the outer periphery of the edge part 3a. That is, the end portion 3 a is fixed to the supply hole member 2 by sandwiching the end portion 2 b between both the claw portion 20 that fits into the step 13 and the convex portion 21 that contacts the edge of the end portion 2 b.

また、注液部材3の端部3aは、供給孔部材2の端部2bに挿入された状態で、回動可能である。このとき、注液部材3の端部3aの外周に設けられるOリング16,17と供給孔部材2の端部2bの内面との間の摩擦力によって、注液部材3に、所定の力が加えられない限り、端部2bに対し、端部3aは回動せずに係止される。   Further, the end 3 a of the liquid injection member 3 is rotatable in a state where it is inserted into the end 2 b of the supply hole member 2. At this time, a predetermined force is applied to the liquid injection member 3 by the frictional force between the O-rings 16 and 17 provided on the outer periphery of the end 3 a of the liquid injection member 3 and the inner surface of the end 2 b of the supply hole member 2. Unless added, the end 3a is locked to the end 2b without rotating.

これによれば、供給孔部材2がタンクT等に取り付けられた状態で、注液部材3の注液孔14を任意の方向に向けることができる。したがって、供給孔部材2をタンクT等に取り付ける際には、注液孔部材3の注液孔14の向きを気にする必要がなく、容易に取り付けが可能になる。さらに、注液孔14からの吐出終了後に、液体流路4に残留している液体が液体吐出具1からこぼれ落ちないように、注液孔14を上向きにするなどの使い方も可能である。このとき、注液孔部材3に所定の力が加えられない状態では、注液部材3の注液孔14の向きは一定に保たれるので、小さな衝撃や振動などによって注液孔14の向きが不意に変わるようなことはない。   According to this, the liquid injection hole 14 of the liquid injection member 3 can be directed in an arbitrary direction with the supply hole member 2 attached to the tank T or the like. Therefore, when the supply hole member 2 is attached to the tank T or the like, it is not necessary to worry about the direction of the liquid injection hole 14 of the liquid injection hole member 3, and the attachment can be easily performed. Furthermore, it is possible to use the liquid injection hole 14 upward so that the liquid remaining in the liquid flow path 4 does not spill out from the liquid discharge tool 1 after the discharge from the liquid injection hole 14 is completed. At this time, in a state where a predetermined force is not applied to the liquid injection hole member 3, the direction of the liquid injection hole 14 of the liquid injection member 3 is kept constant, so the direction of the liquid injection hole 14 due to a small impact, vibration, or the like. Will never change unexpectedly.

さらに、端部3aの外周の端部3c側には、端部3aと端部3cにわたり、端部3cを取り囲むように配置される環状突起22が設けられる。この環状突起22の外周には、リング状の溝24が設けられている。環状突起22と端部3cとの隙間には、後述する開閉部材5を構成する大径部材25(図6参照)の裾の部分が嵌め込まれる。   Further, on the end 3c side of the outer periphery of the end 3a, an annular protrusion 22 is provided across the end 3a and the end 3c so as to surround the end 3c. A ring-shaped groove 24 is provided on the outer periphery of the annular protrusion 22. A skirt portion of a large-diameter member 25 (see FIG. 6) constituting the opening / closing member 5 described later is fitted into the gap between the annular protrusion 22 and the end 3c.

端部3bは、注液孔14としての円形の開口部L4を有する円筒形状である。端部3bと端部3cとの境界は、端部3cの開口部L5と同じ直径である。一方、端部3bのその直径は、端部3bと端部3cとの境界から注液孔14に向かうに連れて開口部L4の直径と同じになるまで漸減する。   The end 3b has a cylindrical shape having a circular opening L4 as the liquid injection hole 14. The boundary between the end 3b and the end 3c has the same diameter as the opening L5 of the end 3c. On the other hand, the diameter of the end 3b gradually decreases from the boundary between the end 3b and the end 3c toward the liquid injection hole 14 until it becomes the same as the diameter of the opening L4.

端部3cは、その上部3dが円形の開口部L5を有する円筒形状で、その下部3eは、端部3aにつながる部分を有する略円筒形状である。図7に示すように、端部3cの上部3dの断面は、後述する大径部材25の凸部46が嵌合する溝23を有する。また、環状突起22の外周には、後述する操作部材6の裾が嵌め込まれる。さらに、環状突起22の外周には、操作部材6の裾が嵌め込まれる際に、操作部材6の裾の爪部39(後述)が嵌合する溝24がリング状または少なくとも操作部材6の回動範囲にわたって設けられる。   The end 3c has a cylindrical shape with an upper portion 3d having a circular opening L5, and the lower portion 3e has a substantially cylindrical shape having a portion connected to the end 3a. As shown in FIG. 7, the cross section of the upper part 3d of the end part 3c has a groove 23 into which a convex part 46 of the large-diameter member 25 described later is fitted. Further, a skirt of the operation member 6 described later is fitted on the outer periphery of the annular protrusion 22. Further, when the skirt of the operation member 6 is fitted into the outer periphery of the annular protrusion 22, the groove 24 into which a claw portion 39 (described later) of the hem of the operation member 6 is fitted is a ring shape or at least the rotation of the operation member 6. Provided over a range.

端部3cの内径は、開口部L5の直径と同じであり、開閉部材5を構成する栓部材26(後述)の外径よりも僅かに大きい。これにより、開閉部材5を構成する栓部材26の外周が端部3cの内側にほぼ密着して収納される。   The inner diameter of the end 3c is the same as the diameter of the opening L5, and is slightly larger than the outer diameter of a plug member 26 (described later) constituting the opening / closing member 5. Thereby, the outer periphery of the plug member 26 constituting the opening / closing member 5 is accommodated in close contact with the inside of the end portion 3c.

このように、注液部材3は、互いに一体結合された3つの端部3a,3b,3cから成るため、小型軽量とすることができる。また、注液部材3は、一体成形により製造されるため、たとえば、端部3a,3b,3cの位置関係等が製品毎にバラツク等の問題がなく、製品の精度を高くすることができる。   Thus, since the liquid injection member 3 is composed of the three end portions 3a, 3b, 3c integrally coupled to each other, it can be made small and light. Moreover, since the liquid injection member 3 is manufactured by integral molding, for example, the positional relationship between the end portions 3a, 3b, and 3c does not have a problem such as variation among products, and the accuracy of the product can be increased.

次に、開閉部材5について、図8から図13を参照しながら説明する。   Next, the opening / closing member 5 will be described with reference to FIGS.

開閉部材5は、図8に示すように、上部が塞がれた円筒状の大径部材25と同じく上部が塞がれた円筒状の栓部材26とを有する。大径部材25は、栓部材26に対し、ネジ27によってネジ止めされる。このため、大径部材25の上部には、ネジ27の頭が入り込むための穴28が設けられる。また、栓部材26の上部には、ネジ27がネジ込まれるための円柱状の柱部29が設けられる。なお、図8の例では、栓部材26は中空構造であるが、これを充実構造としてもよい。栓部材26が充実構造であるときには、柱部29は不要である。また、大径部材25は、外周面に、カム溝30を有する。   As shown in FIG. 8, the opening / closing member 5 includes a cylindrical large-diameter member 25 whose upper portion is closed and a cylindrical plug member 26 whose upper portion is closed. The large diameter member 25 is screwed to the plug member 26 with a screw 27. For this reason, a hole 28 through which the head of the screw 27 enters is provided in the upper portion of the large-diameter member 25. In addition, a columnar column portion 29 into which the screw 27 is screwed is provided on the top of the plug member 26. In the example of FIG. 8, the plug member 26 has a hollow structure, but it may be a solid structure. When the plug member 26 has a solid structure, the column portion 29 is unnecessary. The large diameter member 25 has a cam groove 30 on the outer peripheral surface.

栓部材26は、図8から図10に示すように、外周面に、Oリング31,32,33と、これらのOリング31,32,33が嵌め込まれる溝34,35,36と、を有する。溝34,35,36の形状は、矩形であっても半円形であってもよい。この実施の形態では矩形としている。栓部材26のOリング31,32は、液体流路4を流れる液体が、注液部材3の端部3c側に流れるのを阻止する。また、栓部材26のOリング33は、開閉部材5が下方に移動した際に、注液部材3の端部3bの上部にある直径が漸減する部分の端部3bの内壁と当接することで、液体流路4の液体の流れを停止させると共に、注液孔14から液体が外部に排出されるのを阻止する。なお、Oリング31,32のうち、いずれか一方については省略してもよい。また、逆に3つ以上のOリングとしてもよい。   As shown in FIGS. 8 to 10, the plug member 26 has O-rings 31, 32, 33 and grooves 34, 35, 36 into which these O-rings 31, 32, 33 are fitted on the outer peripheral surface. . The shape of the grooves 34, 35, 36 may be rectangular or semicircular. In this embodiment, it is rectangular. The O-rings 31 and 32 of the stopper member 26 prevent the liquid flowing through the liquid flow path 4 from flowing toward the end 3c side of the liquid injection member 3. Further, the O-ring 33 of the plug member 26 comes into contact with the inner wall of the end portion 3b of the portion where the diameter gradually decreases above the end portion 3b of the liquid injection member 3 when the opening / closing member 5 moves downward. The liquid flow in the liquid channel 4 is stopped and the liquid is prevented from being discharged from the liquid injection hole 14 to the outside. Note that one of the O-rings 31 and 32 may be omitted. Conversely, three or more O-rings may be used.

栓部材26には、柱部29から外周壁部37に伸びる6個のつなぎ部38が底部39から立設している。このつなぎ部38は、隣接するものと外周壁部37と、柱部29とで扇状の穴部41を6個形成している。また、栓部材26の柱部29も底部39から立設されており、その中央には、ネジ27が入り込むための案内孔40が設けられている。栓部材26の底部39は、端部3bの内壁にはまり易くするため、断面が逆台形とされ、その斜面42にOリング33が設けられている。   In the plug member 26, six connecting portions 38 extending from the column portion 29 to the outer peripheral wall portion 37 are erected from the bottom portion 39. In the connecting portion 38, the adjacent one, the outer peripheral wall portion 37, and the column portion 29 form six fan-shaped hole portions 41. Further, the column portion 29 of the plug member 26 is also erected from the bottom portion 39, and a guide hole 40 through which the screw 27 enters is provided at the center thereof. The bottom portion 39 of the plug member 26 has an inverted trapezoidal cross section and is provided with an O-ring 33 on the inclined surface 42 in order to easily fit into the inner wall of the end portion 3b.

また、図8および図14の下図に示すように、大径部材25の内面には、凸部46を有する。この凸部46は、図7に示す注液部材3の端部3cの溝23と嵌合する。これにより、大径部材25は、操作部材6が回動する際に共回りすることなく、確実に、上下方向の移動を行うことができる。なお、凸部46は、図8の例では、大径部材25の内面の最上部から最下部までの長さで設けられるが、これは最大の長さを示しており、これより短くてもよい。   Further, as shown in the lower diagrams of FIGS. 8 and 14, the large diameter member 25 has a convex portion 46 on the inner surface. This convex part 46 fits into the groove 23 of the end part 3c of the liquid injection member 3 shown in FIG. Thereby, the large diameter member 25 can reliably move in the vertical direction without rotating together when the operation member 6 rotates. In the example of FIG. 8, the convex portion 46 is provided with a length from the uppermost portion to the lowermost portion of the inner surface of the large-diameter member 25, but this indicates the maximum length, and even if shorter than this, Good.

また、図11から図14に大径部材25の詳細を説明するための各図を示す。図11に示すように、大径部材25のカム溝30は、同一形状の2つのカム溝30a,30bから形成されている。図12に示すように、各カム溝30a,30bは共に2つの領域である第1領域47と第2領域48とを有する。第1領域47では、カム溝30a,30bと操作部材6の回動方向との成す角αは、6〜12度が好ましく、この実施の形態では10度としている。また、第2領域48では、カム溝30a,30bと操作部材6の回動方向との成す角βは、6度〜12度よりもさらに大きく、たとえば、15度〜25度である。この実施の形態では17度としている。また、各カム溝30a,30bの展開角度は146度とされている。この値は、80〜280度の範囲が好ましく、100〜170度がさらに好ましい。   Further, FIGS. 11 to 14 show respective drawings for explaining the details of the large-diameter member 25. FIG. As shown in FIG. 11, the cam groove 30 of the large-diameter member 25 is formed of two cam grooves 30a and 30b having the same shape. As shown in FIG. 12, each cam groove 30a, 30b has a first region 47 and a second region 48 which are two regions. In the first region 47, the angle α formed by the cam grooves 30a and 30b and the rotation direction of the operation member 6 is preferably 6 to 12 degrees, and in this embodiment, 10 degrees. In the second region 48, the angle β formed by the cam grooves 30a, 30b and the rotation direction of the operation member 6 is further larger than 6 degrees to 12 degrees, for example, 15 degrees to 25 degrees. In this embodiment, the angle is 17 degrees. Further, the deployment angle of each cam groove 30a, 30b is 146 degrees. This value is preferably in the range of 80 to 280 degrees, more preferably 100 to 170 degrees.

カム溝30a,30bは、後述する操作部材6の各突起50,50と嵌合する。大径部材25は、操作部材6の回動によって、図8の紙面の上下方向に移動する。このとき、第1領域47は、大径部材25が最も下方に移動したときに、突起50が位置する箇所に相当する。すなわち、第1領域47は、大径部材25に接合された栓部材26が液体流路4を塞ぐ位置に移動したときに、突起50が位置する箇所でもある。このときに、栓部材26が液体流路4を塞ぐ力を確保するために、カム溝30a,30bと操作部材6の回動方向との成す角は、第2領域48におけるカム溝30a,30bと操作部材6の回動方向との成す角よりも小さくしてある。   The cam grooves 30a and 30b are fitted with projections 50 and 50 of the operation member 6 described later. The large-diameter member 25 moves in the vertical direction on the paper surface of FIG. At this time, the first region 47 corresponds to a position where the protrusion 50 is located when the large-diameter member 25 moves downward most. That is, the first region 47 is also a place where the protrusion 50 is located when the plug member 26 joined to the large diameter member 25 moves to a position where the liquid channel 4 is closed. At this time, in order to ensure the force with which the plug member 26 blocks the liquid flow path 4, the angle formed between the cam grooves 30 a and 30 b and the rotation direction of the operation member 6 is determined by the cam grooves 30 a and 30 b in the second region 48. And the angle formed by the rotation direction of the operation member 6.

また、第1領域47の始点(すなわち、第1領域47と第2領域48との境界点)から終点(すなわち、第1領域47の図12の左端)までは、一定の距離がある。たとえば、液体吐出具1が新品のときには、第1領域47の始点付近に突起50が位置する状態(図12の突起50aで示す位置)で栓部材26が液体流路4を閉塞可能であったとする。その後、栓部材26の斜面42やその斜面42と当接する部分等が経年変化により磨耗すると突起50aの位置では閉とはならなくても第1領域47は突起50が終点付近に位置する状態(図12の突起50bで示し位置)になるまでの間では閉となる。このように、開閉部材5は、第1領域47を設けることにより経年変化による影響を吸収することができる。   Further, there is a certain distance from the start point of the first region 47 (that is, the boundary point between the first region 47 and the second region 48) to the end point (that is, the left end of the first region 47 in FIG. 12). For example, when the liquid ejection tool 1 is new, the plug member 26 can block the liquid flow path 4 in a state where the protrusion 50 is located near the starting point of the first region 47 (the position indicated by the protrusion 50a in FIG. 12). To do. After that, when the slope 42 of the plug member 26 or a portion that contacts the slope 42 is worn due to aging, the first region 47 is in a state where the projection 50 is located near the end point even if the projection 50a does not close at the position ( It is closed until it reaches the position indicated by the protrusion 50b in FIG. As described above, the opening / closing member 5 can absorb the influence of the secular change by providing the first region 47.

また、図14の下図に示すように、大径部材25の内面には、2つの凸部46を有する。この凸部46は、図8の説明でも述べたように、図7に示す注液部材3の端部3cの溝23に嵌合する。これにより、大径部材25は、操作部材6が回動する際に共回りすることなく、確実に、上下方向の移動を行うことができる。   Further, as shown in the lower diagram of FIG. 14, the inner surface of the large diameter member 25 has two convex portions 46. As described in the description of FIG. 8, the convex portion 46 is fitted into the groove 23 of the end portion 3c of the liquid injection member 3 shown in FIG. Thereby, the large diameter member 25 can reliably move in the vertical direction without rotating together when the operation member 6 rotates.

このように、液体吐出具1は、開閉部材5がカム機構を有するので、液体流路4の開閉を、無段階に流量を調整しながら行うことができる。   Thus, in the liquid discharge tool 1, since the opening / closing member 5 has the cam mechanism, the liquid channel 4 can be opened and closed while adjusting the flow rate in a stepless manner.

図14の上図は、大径部材25の上面図である。大径部材25は、上面から見ると、その中央部に、ネジ27の頭を入れ込む穴28を有する。さらに、カム溝30に、後述する操作部材6の突起50を入れ込むための2つの案内溝25aを有する。案内溝25aは、大径部材25の中心から外側に向かって傾斜している。この傾斜は、大径部材25に、操作部材6を嵌め込む際に、操作部材6の突起50がスムーズに入り込むために有用である。たとえば、大径部材25に、操作部材6を嵌め込む際に、大径部材25に対して多少傾斜した角度で操作部材6が嵌め込まれた場合でも突起50をカム溝30にスムーズに案内することができる。   An upper view of FIG. 14 is a top view of the large-diameter member 25. The large-diameter member 25 has a hole 28 into which the head of the screw 27 is inserted when viewed from above. Furthermore, the cam groove 30 has two guide grooves 25a for inserting a projection 50 of the operation member 6 described later. The guide groove 25a is inclined outward from the center of the large-diameter member 25. This inclination is useful because the protrusion 50 of the operation member 6 enters smoothly when the operation member 6 is fitted into the large-diameter member 25. For example, when the operating member 6 is fitted into the large-diameter member 25, the protrusion 50 is smoothly guided to the cam groove 30 even when the operating member 6 is fitted at an angle slightly inclined with respect to the large-diameter member 25. Can do.

なお、図14の例では、穴28の周囲に環状の掘り下げ部25bや環状の掘り下げ部25bの底部に三角形の穴25c等を有するが、これらは大径部材25を加工する際などに、治具に固定するためのものである。したがって、掘り下げ部25bおよび三角形の穴25c等は、本実施の形態と直接関係するものではなく、治具の種類に応じて他の形状としたり、省略してもよい。   In the example of FIG. 14, an annular digging portion 25 b is provided around the hole 28, and a triangular hole 25 c is provided at the bottom of the annular digging portion 25 b. It is for fixing to the tool. Therefore, the dug-down portion 25b and the triangular hole 25c are not directly related to the present embodiment, and may have other shapes or may be omitted depending on the type of jig.

図14の中図は、大径部材25の側面図である。大径部材25の側面には、案内溝25aおよびカム溝30を有する。図14の中図の例では、上部の中心に案内溝25aがあり、案内溝25aにカム溝30aが接続され、大径部材25の右側に回っている。このカム溝30aは、図14の中図の大径部材25の裏面の見えない位置に終点がある。また、図14の中図の大径部材25の裏面には、もう1つの案内溝25aがあり、その案内溝25aにもう1つのカム溝30bが接続される。そのカム溝30bの終点付近は、図14の中図の左側に現れている。   The middle view of FIG. 14 is a side view of the large diameter member 25. A guide groove 25 a and a cam groove 30 are provided on the side surface of the large-diameter member 25. In the example of the middle diagram of FIG. 14, there is a guide groove 25 a at the center of the upper part, and a cam groove 30 a is connected to the guide groove 25 a and turns to the right side of the large diameter member 25. The cam groove 30a has an end point at a position where the back surface of the large-diameter member 25 shown in the middle of FIG. Further, another guide groove 25a is provided on the back surface of the large-diameter member 25 in the middle diagram of FIG. 14, and another cam groove 30b is connected to the guide groove 25a. The vicinity of the end point of the cam groove 30b appears on the left side of the middle diagram of FIG.

図14の下図は、大径部材25の下面図である。大径部材25の下面の中央部には、図9に示す案内孔40に連通する孔25dが設けられる。さらに、大径部材25の下面には、2つの三角形状の突起25eを有する。2つの三角形状の突起25eは、図9に示す扇状の穴部41に嵌合する。突起25eが穴部41に嵌合することで、大径部材25と栓部材26との位置関係が安定的に固定される。なお、図14の下図には、栓部材26の外周壁部37の位置を想像線(二点鎖線)で示している。   The lower view of FIG. 14 is a bottom view of the large diameter member 25. A hole 25d communicating with the guide hole 40 shown in FIG. 9 is provided at the center of the lower surface of the large-diameter member 25. Further, the lower surface of the large diameter member 25 has two triangular protrusions 25e. The two triangular projections 25e are fitted into the fan-shaped hole 41 shown in FIG. By fitting the protrusion 25e into the hole 41, the positional relationship between the large-diameter member 25 and the plug member 26 is stably fixed. In the lower part of FIG. 14, the position of the outer peripheral wall portion 37 of the plug member 26 is indicated by an imaginary line (two-dot chain line).

また、大径部材25と栓部材26とは分割できるので、大径部材25および栓部材26を製造する際の金型をそれぞれ個別に単純化することができる。これにより、金型への樹脂の注入および離型がスムーズになるので、製品の歩留まりを高めることができる。また、カム溝30または凸部46等の製造の精度も高めることができる。   Further, since the large-diameter member 25 and the plug member 26 can be divided, the molds for manufacturing the large-diameter member 25 and the plug member 26 can be individually simplified. Thereby, since the injection | pouring and mold release of resin to a metal mold | die become smooth, the yield of a product can be improved. In addition, the manufacturing accuracy of the cam groove 30 or the convex portion 46 can be increased.

次に、操作部材6について、図15を参照しながら説明する。操作部材6は、円形の開口部L6を有するコップ形状である。操作部材6は、開口部L6から注液部材3の端部3cに被せられる。操作部材6の内周面にはカム溝30と係合する突起50が180度対称位置に計2つ設けられている。開口部L6の縁には、リング状の爪部51を有する。   Next, the operation member 6 will be described with reference to FIG. The operation member 6 has a cup shape having a circular opening L6. The operation member 6 is put on the end 3c of the liquid injection member 3 from the opening L6. On the inner peripheral surface of the operation member 6, a total of two protrusions 50 that engage with the cam groove 30 are provided at 180 ° symmetrical positions. A ring-shaped claw portion 51 is provided at the edge of the opening L6.

爪部51は、注液部材3の端部3cにあるリング状の溝24に嵌合する。爪部51が溝24と嵌合することにより、操作部材6は、注液部材3の端部3cから抜けることなく回動することができる。なお、爪部51は、操作部材6の内周の全周にわたり形成する必要はない。むしろ、爪部51を操作部材6の内周の全周にわたり形成すると爪部51と溝24との間の摩擦が大きくなり、操作部材6の回動がスムーズでなくなる。たとえば、爪部51は、操作部材6の内周の90度毎、または120度毎に分割して設けてもよい。このとき、分割した爪部51の周方向の長さは、角度に置き換えると、たとえば、30度〜60度くらいでよい。   The claw portion 51 is fitted into the ring-shaped groove 24 in the end portion 3 c of the liquid injection member 3. When the claw portion 51 is engaged with the groove 24, the operation member 6 can be rotated without coming out of the end portion 3 c of the liquid injection member 3. The claw portion 51 need not be formed over the entire inner circumference of the operation member 6. Rather, when the claw portion 51 is formed over the entire inner circumference of the operation member 6, the friction between the claw portion 51 and the groove 24 increases, and the rotation of the operation member 6 is not smooth. For example, the claw portion 51 may be provided by being divided every 90 degrees on the inner periphery of the operation member 6 or every 120 degrees. At this time, the length in the circumferential direction of the divided claw portion 51 may be, for example, about 30 degrees to 60 degrees when replaced with an angle.

また、操作部材6の回動範囲は、この実施の形態では132度としているが、90度〜270度が好ましく、120度〜170度がさらに好ましい。操作部材6の円筒形状の外周には、手指の滑り止として凸凹部52が設けられる。凸凹部52は、図2に示すように、軸方向に伸びる凸部52aと隣接する凸部52aの間に設けられる凹部52bとからなる。   Moreover, although the rotation range of the operation member 6 is 132 degrees in this embodiment, it is preferably 90 degrees to 270 degrees, and more preferably 120 degrees to 170 degrees. A convex recess 52 is provided on the outer periphery of the cylindrical shape of the operation member 6 as a non-slip of fingers. As shown in FIG. 2, the convex recess 52 includes a convex portion 52a extending in the axial direction and a concave portion 52b provided between the adjacent convex portions 52a.

このように、操作部材6の回動範囲が90度〜270度であるので、ユーザによる操作部材6の1回転未満の操作だけで、開閉部材5を往復動作させることができる。これによれば、ユーザは、簡単且つ短時間に、液体の供給または停止の切替え操作を行うことができる。   Thus, since the rotation range of the operation member 6 is 90 to 270 degrees, the opening / closing member 5 can be reciprocated only by an operation of the operation member 6 less than one rotation by the user. According to this, the user can perform the switching operation of supplying or stopping the liquid easily and in a short time.

(その他の実施の形態)
上述した実施の形態は、その要旨を逸脱しない限り様々に変更が可能である。たとえば、上述の実施の形態では、操作部材6は、液体吐出具1の上部に設けたが、操作部材6を液体吐出具1の他の位置に設けてもよい。
(Other embodiments)
The embodiment described above can be variously modified without departing from the gist thereof. For example, in the above-described embodiment, the operation member 6 is provided at the upper part of the liquid ejection tool 1, but the operation member 6 may be provided at another position of the liquid ejection tool 1.

たとえば、操作部材6を液体吐出具1の前部、すなわち、端部3cを端部3aに対して一直線となるように設けてもよい。この場合、開閉部材5の往復動作方向は前後方向になり、開閉部材5は、端部3aに入ったり出たりすることになる。すなわち、開閉部材5が供給孔部材2の方向に移動することにより注液を停止する。なお、注液部材3の端部3bの注液孔14を有する部分については下方を向けて設ける。   For example, the operation member 6 may be provided so that the front portion of the liquid ejection tool 1, that is, the end portion 3c is aligned with the end portion 3a. In this case, the reciprocating direction of the opening / closing member 5 is the front-rear direction, and the opening / closing member 5 enters and exits the end portion 3a. That is, the injection is stopped when the opening / closing member 5 moves in the direction of the supply hole member 2. In addition, about the part which has the liquid injection hole 14 of the edge part 3b of the liquid injection member 3, it provides downward.

または、操作部材6を液体吐出具1の左右のいずれかの側に90度倒した状態で設けてもよい。すなわち、図3において操作部材6を紙面表側または紙面裏側に向けて突出させる方向となるように設ける。この場合、開閉部材5の往復動作方向は図3において右方から見て左右方向になり、注液部材3の端部3cおよび端部3bについても液体吐出具1の左右いずれかの側に90度倒した状態で設けられる。このとき、注液孔14は、下方に向くことが好ましいので、たとえば、端部3bを途中から90度下方に湾曲させるなどしてもよい。   Alternatively, the operation member 6 may be provided in a state where the operation member 6 is tilted 90 degrees on either the left or right side of the liquid ejection tool 1. That is, in FIG. 3, the operation member 6 is provided so as to protrude toward the front side or the back side. In this case, the reciprocating direction of the opening / closing member 5 is the left-right direction when viewed from the right in FIG. 3, and the end 3 c and the end 3 b of the liquid injection member 3 are also moved to the left or right side of the liquid ejection tool 1. It is provided in an overwhelmed state. At this time, since the liquid injection hole 14 is preferably directed downward, for example, the end 3b may be bent 90 degrees downward from the middle.

また、図16に示すように、端部3bに液ダレ防止機構を有するようにしてもよい。液ダレ防止機構は、端部3bの先端部を不図示の別のタンク等の容器に挿入して給水(または給油)を行った後に、その容器から端部3bを引き抜く際の液ダレを防止するものである。   Further, as shown in FIG. 16, a liquid dripping prevention mechanism may be provided at the end 3b. The liquid dripping prevention mechanism prevents liquid dripping when the end 3b is pulled out from the container after inserting the tip of the end 3b into a container such as another tank (not shown) and supplying water (or refueling). To do.

液ダレ防止機構は、端部3bを外側筒状部とし、その内側に、円筒状の内側筒状部60を設ける。さらに、リング状の吸液部61、および小径と大径の円筒部を有する吸液部材保持部62を有して構成される。端部3bには、四角の切欠部63が設けられる。そして、内側筒状部60には、把持部64が取り付けられる。   In the liquid dripping prevention mechanism, the end 3b is an outer cylindrical portion, and a cylindrical inner cylindrical portion 60 is provided inside the end portion 3b. Furthermore, it is configured to include a ring-shaped liquid absorption part 61 and a liquid absorption member holding part 62 having a small diameter and a large diameter cylindrical part. A square notch 63 is provided at the end 3b. A grip portion 64 is attached to the inner cylindrical portion 60.

把持部64をユーザが指で把持し、把持部64を切欠部63の下方に移動させることによって、内側筒状部60が端部3bから突出する。把持部64は、吸液部材保持部62の図16における上端に衝突し、さらなる下方への移動が阻止される。図16の状態が内側筒状部60が端部3bから最も突出した状態である。   When the user grips the grip portion 64 with a finger and moves the grip portion 64 below the notch portion 63, the inner cylindrical portion 60 protrudes from the end portion 3b. The grip part 64 collides with the upper end in FIG. 16 of the liquid absorbing member holding part 62, and further downward movement is prevented. The state of FIG. 16 is a state in which the inner cylindrical portion 60 protrudes most from the end portion 3b.

図16に示す状態で、液体吐出具1から不図示の容器に給水(または給油)を行った後に、ユーザは、把持部64を持って、内側筒状部60を上方に移動させる。ここで、内側筒状部60が端部3bの内部を移動するときに、吸液部61の中心に設けられる貫通孔Pの内周と接触しながら移動する。これにより、内側筒状部60の外側に付着していた水(または油)は、吸液部61によって吸収されるので、液ダレを防止することができる。   In the state shown in FIG. 16, after supplying water (or refueling) from the liquid ejection tool 1 to a container (not shown), the user holds the grip portion 64 and moves the inner cylindrical portion 60 upward. Here, when the inner cylindrical portion 60 moves inside the end portion 3b, it moves while contacting the inner periphery of the through hole P provided at the center of the liquid absorbing portion 61. Thereby, the water (or oil) adhering to the outer side of the inner cylindrical part 60 is absorbed by the liquid absorption part 61, so that liquid dripping can be prevented.

吸液部61は、フェルトなどの液体を吸収する能力が高い材質によって形成されている。吸液部61は、その吸収力の良さと伸縮性がある点でフェルトが好ましい。吸液部材保持部62は、内側に吸液部61を保持する。   The liquid absorption part 61 is formed of a material having a high ability to absorb a liquid such as felt. The liquid absorption part 61 is preferably a felt because of its good absorbency and elasticity. The liquid absorbing member holding part 62 holds the liquid absorbing part 61 inside.

また、図16に示すように、吸液部材保持部62は、すり割り状の隙間65を多数有する。この隙間65により吸液部材保持部62は、吸液部61を保持する際に、吸液部61が十分に空気に触れるように保持することができる。これによれば吸液部61が液体を吸液した際に、この液体が自然に空気中に蒸発することを妨げないようにすることができる。   Further, as shown in FIG. 16, the liquid absorbing member holding portion 62 has a number of slit-like gaps 65. Due to the gap 65, the liquid absorbing member holding part 62 can hold the liquid absorbing part 61 so that the liquid absorbing part 61 is sufficiently in contact with air when the liquid absorbing part 61 is held. According to this, when the liquid absorption part 61 absorbs the liquid, it is possible to prevent the liquid from spontaneously evaporating into the air.

また、吸液部材保持部62は、隙間65を形成する複数の突出部66を有している。この突出部66の先端は、内側に折れ曲がる爪部67となっている。この爪部67によって、吸液部61が外れないようにされている。一方で、突出部66は弾性を有し、突出部66を外側に引っ張ることで爪部67が吸液部61から離れるので、古い吸液部61を取り外して新品の吸液部61に交換することは容易である。これによれば吸液部材保持部62は、通常時には確実に吸液部61を保持するが、吸液部61の交換時には、吸液部61の脱着を容易に行うことができる。   In addition, the liquid absorbing member holding part 62 has a plurality of protrusions 66 that form gaps 65. The tip of the protruding portion 66 is a claw portion 67 that bends inward. The claw portion 67 prevents the liquid absorbing portion 61 from being detached. On the other hand, the protruding portion 66 has elasticity, and the claw portion 67 is separated from the liquid absorbing portion 61 by pulling the protruding portion 66 outward. Therefore, the old liquid absorbing portion 61 is removed and replaced with a new liquid absorbing portion 61. It is easy. According to this, the liquid absorbing member holding part 62 reliably holds the liquid absorbing part 61 at the normal time, but when the liquid absorbing part 61 is replaced, the liquid absorbing part 61 can be easily attached and detached.

また、上述の実施の形態では、開閉部材5は、カム機構を有し、液体流路4の開閉を、無段階に流量を調整しながら行うことができるが、液体流路4の開閉をON/OFFのみの2段階としてもよい。この場合、開閉部材5のカム機構は不要である。その代わりに、開閉部材5を中空構造とし、開閉部材5の下面には排液孔を設け、さらに、開閉部材5の側壁の一部に、供給孔部材2の端部2bの開口部L2に連通する孔を設ける。また、操作部材6は、開閉部材5を周方向に回動させるようにする。液体流路4を開状態とするときには、開閉部材5の側壁に開けた孔と開口部12とが連通するように、操作部材6を回動させる。液体流路4を閉状態とするときには、開閉部材5の側壁に開けた孔と開口部12とが連通しないように、操作部材6を回動させる。   Further, in the above-described embodiment, the opening / closing member 5 has a cam mechanism, and can open and close the liquid channel 4 while adjusting the flow rate in a stepless manner. It is good also as two steps of only / OFF. In this case, the cam mechanism of the opening / closing member 5 is not necessary. Instead, the opening / closing member 5 has a hollow structure, and a drainage hole is provided on the lower surface of the opening / closing member 5. Further, a part of the side wall of the opening / closing member 5 is provided at the opening L 2 of the end 2 b of the supply hole member 2. A communicating hole is provided. The operation member 6 rotates the opening / closing member 5 in the circumferential direction. When the liquid channel 4 is opened, the operation member 6 is rotated so that the hole opened in the side wall of the opening / closing member 5 and the opening 12 communicate with each other. When the liquid flow path 4 is in the closed state, the operation member 6 is rotated so that the hole opened in the side wall of the opening / closing member 5 does not communicate with the opening 12.

また、上述の実施の形態では、注液孔部材3は、一体成形したが、注液孔部材3を複数の部材で形成してもよい。たとえば、端部3bを別部材とし、端部3cに嵌め込むようにしてもよい。あるいは、端部3a、端部3b、端部3cをそれぞれ別部材とし、互いに嵌め込むようにしてもよい。   Moreover, in the above-mentioned embodiment, although the injection hole member 3 was integrally molded, you may form the injection hole member 3 with a some member. For example, the end 3b may be a separate member and fitted into the end 3c. Alternatively, the end portion 3a, the end portion 3b, and the end portion 3c may be separate members and fitted into each other.

また、上述の実施の形態では、液体吐出具1を構成する部材を、供給孔部材2、注液孔部材3、および操作部材6に分けたが、たとえば、供給孔部材2と注液部材3とは一体的に一部材として形成してもよい。   In the above-described embodiment, the members constituting the liquid ejection tool 1 are divided into the supply hole member 2, the liquid injection hole member 3, and the operation member 6. For example, the supply hole member 2 and the liquid injection member 3 are divided. And may be integrally formed as one member.

1…液体吐出具、2…供給孔部材、3…注液孔部材、3a,3b,3c…端部、4…液体流路、5…開閉部材、6…操作部材、14…注液孔、23…溝、25…大径部材、26…栓部材、30,30a,30b…カム溝、37…凸部、40…突起 DESCRIPTION OF SYMBOLS 1 ... Liquid discharge tool, 2 ... Supply hole member, 3 ... Liquid injection hole member, 3a, 3b, 3c ... End part, 4 ... Liquid flow path, 5 ... Opening / closing member, 6 ... Operation member, 14 ... Liquid injection hole, 23 ... groove, 25 ... large diameter member, 26 ... plug member, 30, 30a, 30b ... cam groove, 37 ... convex, 40 ... projection

Claims (5)

液体の供給元に接続される供給孔部材と、
前記供給孔部材に接続され、前記液体の注液先に前記液体を注液する注液孔部材と、
前記供給孔部材と前記注液孔部材の内部空間に設けられ、液体が流れていく液体流路と、
前記液体流路を開閉する開閉部材と、
前記開閉部材を操作する操作部材と、
を有する液体吐出具において、
前記開閉部材は、カム機構によって前記液体流路内を往復動作し、
前記カム機構は、前記開閉部材の外周に設けられるカム溝と、前記操作部材に設けられ前記カム溝に嵌合する突起とを有し、
前記操作部材の回動範囲が90度〜270度である、
ことを特徴とする液体吐出具。
A supply hole member connected to a liquid supply source;
An injection hole member that is connected to the supply hole member and injects the liquid into a liquid injection destination;
A liquid flow path that is provided in an internal space of the supply hole member and the liquid injection hole member and in which a liquid flows;
An opening and closing member for opening and closing the liquid flow path;
An operating member for operating the opening and closing member;
In a liquid ejection tool having
The opening / closing member reciprocates in the liquid flow path by a cam mechanism,
The cam mechanism includes a cam groove provided on an outer periphery of the opening / closing member, and a protrusion provided on the operation member and fitted into the cam groove,
The rotation range of the operation member is 90 degrees to 270 degrees.
A liquid ejection tool characterized by that.
請求項1記載の液体吐出具において、
前記注液孔部材は、
前記供給孔部材と接続される第1の端部と、
注液孔となる第2の端部と、
前記操作部材が配置される第3の端部と、
を有し、
前記第1の端部は、前記開閉部材の往復動作方向と直交する方向に設けられ、
前記第2の端部と前記第3の端部は、前記開閉部材の往復動作方向に沿って設けられ、
前記開閉部材が前記第3の端部に係合し、前記第2の端部の方向に移動することにより注液を停止する、
ことを特徴とする液体吐出具。
The liquid ejection tool according to claim 1, wherein
The liquid injection hole member is
A first end connected to the supply hole member;
A second end that serves as a liquid injection hole;
A third end where the operating member is disposed;
Have
The first end is provided in a direction orthogonal to the reciprocating direction of the opening / closing member,
The second end and the third end are provided along a reciprocating direction of the opening / closing member,
The opening / closing member engages with the third end and stops injecting by moving in the direction of the second end;
A liquid ejection tool characterized by that.
請求項2記載の液体吐出具において、
前記開閉部材は、
前記液体流路を塞ぐ栓部材と、
外周に前記カム溝が形成され、内側に、回り止め用の凸部を有すると共に前記栓部材が配置される大径部材と、
を有し、
前記大径部材の内側と前記栓部材の外側の一部との間に、前記第3の端部が入り込み、
前記第3の端部の外周には、前記回り止め用の凸部と嵌合する溝が設けられる、
ことを特徴とする液体吐出具。
The liquid ejection tool according to claim 2, wherein
The opening / closing member is
A plug member for closing the liquid flow path;
A large-diameter member in which the cam groove is formed on the outer periphery, and the stopper member is disposed on the inner side with a protrusion for preventing rotation;
Have
Between the inside of the large-diameter member and a part of the outside of the plug member, the third end portion enters,
On the outer periphery of the third end portion, a groove that fits with the rotation-preventing convex portion is provided,
A liquid ejection tool characterized by that.
請求項3記載の液体吐出具において、
前記注液孔部材は、前記第1の端部と前記第2の端部と前記第3の端部とが一体成形により形成され、前記開閉部材の案内と液体の吐出とを兼ね備える、
ことを特徴とする液体吐出具。
The liquid ejection tool according to claim 3, wherein
In the liquid injection hole member, the first end, the second end, and the third end are formed by integral molding, and both the guide of the opening and closing member and the discharge of the liquid are combined.
A liquid ejection tool characterized by that.
請求項4記載の液体吐出具において、
前記カム溝を対称に2つ設け、前記突起を2つ設け、前記開閉部材が前記注液孔を塞いだ状態にあるときに、前記各カム溝に嵌合する前記各突起が入り込む位置の付近の前記各カム溝と前記操作部材の回動方向との成す角は、それ以外の位置の前記各カム溝と前記操作部材の回動方向との成す角よりも小さくし、前記各カム溝の周方向の範囲を、100度〜170度とした、
ことを特徴とする液体吐出具。
The liquid ejection tool according to claim 4, wherein
Two cam grooves are provided symmetrically, two of the protrusions are provided, and when the opening / closing member is in a state of closing the liquid injection hole, the vicinity of the position where the protrusions that fit into the cam grooves enter The angle formed by each cam groove and the rotation direction of the operation member is smaller than the angle formed by each cam groove and the rotation direction of the operation member at other positions. The circumferential range was set to 100 degrees to 170 degrees.
A liquid ejection tool characterized by that.
JP2013250364A 2013-12-03 2013-12-03 Liquid discharger Pending JP2015107807A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020179874A (en) * 2019-04-24 2020-11-05 藤森工業株式会社 Spouting member insertion structure and packaging container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020179874A (en) * 2019-04-24 2020-11-05 藤森工業株式会社 Spouting member insertion structure and packaging container

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