JP3634087B2

JP3634087B2 - Synthetic resin dispenser

Info

Publication number: JP3634087B2
Application number: JP24891696A
Authority: JP
Inventors: 茂雄飯塚
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 1996-08-30
Filing date: 1996-08-30
Publication date: 2005-03-30
Anticipated expiration: 2016-08-30
Also published as: JPH1071349A

Description

【０００１】
【発明の属する技術分野】
本発明は、ヘッド押下げ式の合成樹脂製液体吐出器に係る。
【０００２】
【従来の技術】
【発明が解決しようとする課題】
従来、この種ヘッド押下げ式の液体吐出器は、ノズル付き押下げヘッド、ステム、筒状ピストンで形成された作動部材を圧縮コイルバネの弾性に抗して押下げることで、シリンダ内液体をノズルから吐出させ、かつその押下げを解放することで、容器体内液体をシリンダ内へ吸上げるよう形成され、その圧縮コイルバネは金属で形成されている。
【０００３】
ところで、近時、資源を再利用するため、また廃棄物を処理する都合上から、廃棄物を金属、合成樹脂、或いは硝子等に分別して収集することが行われているが、従来の液体吐出器では、金属製の圧縮コイルバネを取り外すことが不能ないし困難であるため、分別収集に適さない不都合があった。
【０００４】
本発明は、金属製の圧縮コイルバネに代えて、合成樹脂製の弾性体で作動部材を上方付勢するよう形成することで、分別収集に対応できるよう設けた。また、シリンダの上端部内面にステム案内用の筒部を嵌合させることで、液体を円滑に吐出できるよう設けた。
【０００５】
【課題を解決するための手段】
第１の手段として、容器体口頸部嵌合用の装着筒から外向きフランジを介してシリンダを垂下し、該シリンダ内から、ステム下端に筒状ピストンを、かつステム上端にノズル付きヘッドを、それぞれ有する作動部材を上方付勢させて起立する液体吐出器において、
上記シリンダ３上部の外向きフランジ２上面から短筒部１５を起立すると共に、上記ステム４の上部外面から弾性屈曲可能に設けた筒状部１３を下外方へ突出し、かつ該筒状部下端に取付け筒部１４を付設して、該筒部を上記短筒部１５に嵌着させることで、上記筒状部１３により上記作動部材７を上方付勢させ、また、上記ステム４と筒状部１３と取付け筒部１４とを共に合成樹脂材で一体成形させた。
【０００６】
第２の手段として、上記第１の手段を有すると共に、シリンダ３の上端部内面にステム案内筒２２を嵌合させた。
【０００７】
【発明の実施の形態】
先ず、図１ないし図３が示す第１実施形態の概略を説明すると、本実施形態の液体吐出器は、容器体口頸部螺合用の装着筒１の中間部内面から外向きフランジ２を介してシリンダ３を垂下すると共に、該シリンダ内から、ステム４下端に筒状ピストン５を、かつステム４上端にノズル付きヘッド６を、それぞれ有する作動部材７を上方付勢させて起立し、また、シリンダ３の底部に吸込み弁８を設け、更に吸上げパイプ９をシリンダ３の下端から垂下している。
【０００８】
上記ステム４は、外筒１１と内体１７とで形成され、外筒１１は、筒壁上部を小内径に、かつ下部を大内径に、またそれ等上下両部間の筒壁部分を中内径として、該中内径部の上部内面に複数の縦突条１２を付設している。また、中内径部の中間部外面からは、下外方へ弾性屈曲可能に設けた下方大径テ−パ状の筒状部１３を突出し、かつ該筒状部の下端に付設した取付け筒部１４を、上記シリンダ３上部の外向きフランジ２上面内周部から起立する短筒部１５の外面に凹凸の嵌合手段で嵌着させることで、上記筒状部１３により作動部材７を上方へ付勢させ、図１が示す状態から図３が示すように、ヘッド６を筒状部１３の弾性に抗して押下げ、かつ該状態からヘッド６を解放すると、筒状部１３が弾性復元して作動部材７を押し上げるよう形成している。また、上記外筒１１、筒状部１３および取付け筒部１４は、軟質樹脂材により一体成形する。
【０００９】
内体１７は、棒状の本体部１８下端に外向きフランジ状壁を介して筒部１９を付設し、かつその本体部１８の上部を上記外筒１１の中内径部内面へ嵌合させてその上端面外周部を上記縦突条１２の下面へ当接させている。また、本体部１８の外面には液体流通用の縦溝２０を複数穿設し、図１が示す状態からヘッド６を押下げると、図３が示すように、本体部１８の下部外面に一定範囲で上下摺動可能に嵌合させた筒状ピストン５が本体部１８に対して相対的に上昇して、それ等縦溝２０とシリンダ３が連通し、ヘッド押下げで加圧されたシリンダ３内の液体をノズルから吐出させるよう形成している。
【００１０】
上記本体部１８は、図４が示す第２実施形態のように、上面開口の筒状として筒壁下部に透孔２１を穿設し、ヘッド６を押下げると、本体部１８に対して筒状ピストン５が相対的に上昇することで、本体部１８とシリンダ３がその透孔２１を介して連通するよう形成してもよい。
【００１１】
上記シリンダ３の上部内面には、ステム案内筒２２の外面を嵌合させると共に、該筒上端の外向きフランジ状壁２３下面をシリンダ３の筒壁上端面へ係合させ、かつ当該ステム案内筒の内面に上記外筒１１の下部外面を上下摺動可能に嵌合させている。このステム案内筒は、筒状ピストン５のストッパーを兼用し、図１が示すように、筒状ピストン５の上限位置を定めている。
【００１２】
尚既述シリンダ３の上部と短筒部１５の下部とにはそれぞれ小透孔３ａ，１５ａを穿設して、ヘッド６を介して作動部材７を押下げたとき、それ等小透孔を通って外気が容器体内へ入り、液体吐出による容器体内の負圧化を解消するよう設けている。
【００１３】
図示の各実施形態では、ステム４を外筒１１と内体１７とにより形成したが、ステム４の上部外面から作動部材７を上方付勢する筒状部１８を下外方に突出してあれば、外筒１１と内体１７とでステム４を形成することを要しない。また、装着筒１，筒状ピストン５，ノズル付きヘッド６，吸込み弁８等は、図示例に限定されず、他の公知の構造としてもよい。
尚上記各部材は合成樹脂材により成形する。
【００１４】
【発明の効果】
本発明は上記構成とするものであり、請求項１記載の発明の場合は、ステム４の上部外面から弾性屈曲可能に設けた筒状部１３を下外方へ突出し、かつ該筒状部下端に付設した取付け筒部１４を、シリンダ３上部の外向きフランジ２上面から起立する短筒部１５に嵌着させることで、筒状部１３により作動部材７を上方付勢させたから、つまり金属製の圧縮コイルバネに代えて筒状部１３で作動部材７を上方付勢するよう形成したから、液体吐出器を構成する総ての部材を合成樹脂材で形成することができ、よって、分別廃棄の要請に容易に対応することができ、また、筒状部２３と取付け筒部１４はステム４と共に一体成形するので、構造が複雑となることが回避されて容易に製作できる。
【００１５】
請求項２記載の発明の場合は、請求項１の効果と共に、シリンダ３の上端部内面にステム案内筒２２を嵌合させたから、該ステム案内筒によってステム４を支持することができ、よって、ヘッド６を押下げる際に、ヘッドが左右ないし前後にぐらつくことを防止できる。
【図面の簡単な説明】
【図１】本発明吐出器の第１実施形態を示す半断面図である。
【図２】同実施形態を、ヘッドおよび吸上げパイプを取り除いた状態で示す半断面図である。
【図３】同実施形態を、ヘッドを押下げた状態で示す半断面図である。
【図４】本発明吐出器の第２実施形態を示す半断面図である。
【符号の説明】
１３…筒状部２２…ステム案内筒[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a head-pressing type synthetic resin liquid ejector.
[0002]
[Prior art]
[Problems to be solved by the invention]
Conventionally, this type of head push-down type liquid ejector is designed to push the liquid in the cylinder by pushing down the operating member formed by the push-down head with nozzle, stem, and cylindrical piston against the elasticity of the compression coil spring. It is formed so that the liquid in the container is sucked into the cylinder by being discharged from and released, and the compression coil spring is made of metal.
[0003]
By the way, recently, waste is separated and collected into metal, synthetic resin, glass, etc. for the purpose of reusing resources and processing waste. However, since it is impossible or difficult to remove the metal compression coil spring, the container has a disadvantage that it is not suitable for separate collection.
[0004]
In the present invention, instead of a metal compression coil spring, an elastic member made of a synthetic resin is formed so as to urge the operating member upward, so that the collection can be handled. In addition, a stem guide tube portion is fitted to the inner surface of the upper end portion of the cylinder so that the liquid can be smoothly discharged.
[0005]
[Means for Solving the Problems]
As a first means, a cylinder is suspended from the mounting cylinder for fitting the container body neck at the neck via an outward flange, a cylindrical piston is provided at the lower end of the stem, and a head with a nozzle is provided at the upper end of the stem. In the liquid ejector that stands up by upwardly urging each of the actuating members,
A short cylindrical portion 15 is erected from the upper surface of the outward flange 2 at the top of the cylinder 3, and a cylindrical portion 13 provided so as to be elastically bendable from the upper outer surface of the stem 4 is projected downward and the lower end of the cylindrical portion An attachment tube portion 14 is attached to the tube portion and the tube portion is fitted to the short tube portion 15 so that the operation member 7 is urged upward by the tube portion 13 and the stem 4 and the tube shape are formed. Both the part 13 and the mounting cylinder part 14 were integrally formed of a synthetic resin material.
[0006]
As a second means, the stem guide tube 22 was fitted to the inner surface of the upper end of the cylinder 3 while having the first means.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
First, the outline of the first embodiment shown in FIG. 1 to FIG. 3 will be described. The liquid ejector of this embodiment is provided with an outward flange 2 from an inner surface of an intermediate portion of a mounting cylinder 1 for screwing a container body mouth and neck. The cylinder 3 is suspended and the cylinder 7 is raised from the cylinder 4 at the lower end of the stem 4 and the head 6 with the nozzle at the upper end of the stem 4 is urged upward, A suction valve 8 is provided at the bottom of the cylinder 3, and a suction pipe 9 is suspended from the lower end of the cylinder 3.
[0008]
The stem 4 is formed by an outer cylinder 11 and an inner body 17, and the outer cylinder 11 has an upper cylindrical wall with a small inner diameter and a lower part with a large inner diameter, and the cylindrical wall portion between the upper and lower parts is the middle. As the inner diameter, a plurality of vertical ridges 12 are provided on the upper inner surface of the medium inner diameter portion. Further, a lower large-diameter taper-shaped tubular portion 13 provided so as to be elastically bent downward and outward is projected from the outer surface of the intermediate inner diameter portion, and attached to the lower end of the tubular portion. 14 is fitted to the outer surface of the short cylindrical portion 15 erected from the inner peripheral portion of the upper surface of the outward flange 2 at the upper portion of the cylinder 3 by means of concave and convex fitting means, whereby the operating member 7 is moved upward by the cylindrical portion 13. When the head 6 is pushed down against the elasticity of the cylindrical portion 13 and released from the state as shown in FIG. 3 from the state shown in FIG. 1, the cylindrical portion 13 is elastically restored. Thus, the actuating member 7 is formed to be pushed up. The outer cylinder 11, the cylindrical portion 13 and the mounting cylinder portion 14 are integrally formed of a soft resin material.
[0009]
The inner body 17 has a cylindrical portion 19 attached to the lower end of a rod-shaped main body portion 18 through an outward flange-like wall, and the upper portion of the main body portion 18 is fitted to the inner surface of the inner diameter portion of the outer cylinder 11. The outer peripheral portion of the upper end surface is brought into contact with the lower surface of the vertical ridge 12. Further, when a plurality of longitudinal grooves 20 for liquid circulation are formed in the outer surface of the main body portion 18 and the head 6 is pushed down from the state shown in FIG. 1, the lower outer surface of the main body portion 18 is constant as shown in FIG. The cylindrical piston 5 fitted so as to be slidable up and down within the range rises relatively with respect to the main body 18, and the longitudinal groove 20 and the cylinder 3 communicate with each other, and the cylinder is pressurized by pressing the head down. 3 is formed so that the liquid in the nozzle 3 is discharged from the nozzle.
[0010]
As shown in the second embodiment shown in FIG. 4, the main body 18 has a cylindrical shape with an opening on the upper surface, and a through-hole 21 is formed in the lower portion of the cylindrical wall. The main body 18 and the cylinder 3 may be formed so as to communicate with each other through the through-hole 21 by the relative rise of the piston 5.
[0011]
The outer surface of the stem guide tube 22 is fitted to the upper inner surface of the cylinder 3, the lower surface of the outward flange-like wall 23 at the upper end of the tube is engaged with the upper surface of the cylinder wall of the cylinder 3, and the stem guide tube The lower outer surface of the outer cylinder 11 is fitted to the inner surface of the outer cylinder 11 so as to slide up and down. The stem guide cylinder also serves as a stopper for the cylindrical piston 5 and defines the upper limit position of the cylindrical piston 5 as shown in FIG.
[0012]
Incidentally, small through holes 3 a and 15 a are formed in the upper part of the cylinder 3 and the lower part of the short cylinder part 15, respectively, and when the operating member 7 is pushed down through the head 6, these small through holes are formed. It is provided so that outside air passes through the container body and the negative pressure in the container body due to liquid discharge is eliminated.
[0013]
In each illustrated embodiment, the stem 4 is formed by the outer cylinder 11 and the inner body 17. However, as long as the cylindrical portion 18 that biases the operating member 7 upward from the upper outer surface of the stem 4 protrudes downward and outward. It is not necessary to form the stem 4 with the outer cylinder 11 and the inner body 17. Further, the mounting cylinder 1, the cylindrical piston 5, the nozzle head 6, the suction valve 8, and the like are not limited to the illustrated example, and may have other known structures.
Each member is formed of a synthetic resin material.
[0014]
【The invention's effect】
The present invention is configured as described above, and in the case of the first aspect of the present invention, the tubular portion 13 provided so as to be elastically bendable from the upper outer surface of the stem 4 protrudes downward and outward, and the lower end of the tubular portion. Since the mounting cylinder part 14 attached to the cylinder 3 is fitted to the short cylinder part 15 rising from the upper surface of the outward flange 2 at the upper part of the cylinder 3, the operating member 7 is biased upward by the cylindrical part 13, that is, made of metal. Since the cylindrical member 13 is formed so as to urge the operating member 7 upward instead of the compression coil spring, all the members constituting the liquid ejector can be formed of a synthetic resin material. The tubular portion 23 and the mounting tubular portion 14 are integrally formed with the stem 4 so that the structure can be easily manufactured without being complicated.
[0015]
In the case of the invention according to claim 2, in addition to the effect of claim 1, the stem guide tube 22 is fitted to the inner surface of the upper end portion of the cylinder 3, so that the stem 4 can be supported by the stem guide tube. When the head 6 is pushed down, the head can be prevented from wobbling from side to side or back and forth.
[Brief description of the drawings]
FIG. 1 is a half sectional view showing a first embodiment of a discharger of the present invention.
FIG. 2 is a half sectional view showing the embodiment with the head and the suction pipe removed.
FIG. 3 is a half sectional view showing the embodiment in a state where a head is pushed down;
FIG. 4 is a half sectional view showing a second embodiment of the discharger of the present invention.
[Explanation of symbols]
13 ... Cylindrical part 22 ... Stem guide tube

Claims

容器体口頸部嵌合用の装着筒から外向きフランジを介してシリンダを垂下し、該シリンダ内から、ステム下端に筒状ピストンを、かつステム上端にノズル付きヘッドを、それぞれ有する作動部材を上方付勢させて起立する液体吐出器において、
上記シリンダ３上部の外向きフランジ２上面から短筒部１５を起立すると共に、上記ステム４の上部外面から弾性屈曲可能に設けた筒状部１３を下外方へ突出し、かつ該筒状部下端に取付け筒部１４を付設して、該筒部を上記短筒部１５に嵌着させることで、上記筒状部１３により上記作動部材７を上方付勢させ、また、上記ステム４と筒状部１３と取付け筒部１４とを共に合成樹脂材で一体成形させたこと特徴とする合成樹脂製液体吐出器。The cylinder is suspended from the mounting cylinder for fitting the container body neck to the neck via an outward flange, and from within the cylinder, the cylindrical piston is formed at the lower end of the stem, and the working member having the nozzle head is disposed at the upper end of the stem. In the liquid dispenser that stands by being energized,
A short cylindrical portion 15 is erected from the upper surface of the outward flange 2 at the top of the cylinder 3, and a cylindrical portion 13 provided so as to be elastically bendable from the upper outer surface of the stem 4 is projected downward and the lower end of the cylindrical portion An attachment tube portion 14 is attached to the tube portion and the tube portion is fitted to the short tube portion 15 so that the operation member 7 is urged upward by the tube portion 13 and the stem 4 and the tube shape are formed. A synthetic resin liquid dispenser in which the portion 13 and the mounting tube portion 14 are integrally formed of a synthetic resin material.

シリンダ３の上端部内面にステム案内筒２２を嵌合させたことを特徴とする請求項１記載の合成樹脂製液体吐出器。The synthetic resin liquid dispenser according to claim 1, wherein a stem guide tube (22) is fitted to the inner surface of the upper end of the cylinder (3).