JP3508235B2 - Discharge container - Google Patents

Discharge container

Info

Publication number
JP3508235B2
JP3508235B2 JP23075394A JP23075394A JP3508235B2 JP 3508235 B2 JP3508235 B2 JP 3508235B2 JP 23075394 A JP23075394 A JP 23075394A JP 23075394 A JP23075394 A JP 23075394A JP 3508235 B2 JP3508235 B2 JP 3508235B2
Authority
JP
Japan
Prior art keywords
cylinder
piston
outer peripheral
rib
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP23075394A
Other languages
Japanese (ja)
Other versions
JPH0872947A (en
Inventor
秀幸 宇佐美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentel Co Ltd
Original Assignee
Pentel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP23075394A priority Critical patent/JP3508235B2/en
Publication of JPH0872947A publication Critical patent/JPH0872947A/en
Application granted granted Critical
Publication of JP3508235B2 publication Critical patent/JP3508235B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001Piston pumps
    • B05B11/1004Piston pumps comprising a movable cylinder and a stationary piston
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001Piston pumps

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)

Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は、化粧用乳液、ハンドク
リ−ム、ファンデ−ション、洗髪用シャンプ−、リン
ス、マヨネ−ズ、ケチャップ、絵の具などの液体の吐出
容器に関する。 【0002】 【従来の技術】ピストンとシリンダ−との液密摺動構造
を利用した吐出容器として、本願出願人は、以前に実願
平4−59476号に記載の考案をなした。内部に液室
を設けた容器本体の口部に前記液室と連通する内孔を有
するピストンを設けるとともに、吐出口に連通する内孔
を有するシリンダ−を前記ピストンに対して液密摺動可
能に取り付け、これにより、前記液室から前記吐出口に
連通する液通路を形成し、但し、この液通路には、前記
シリンダ−が前記ピストンに近づく方向に摺動するとき
開放する弁と、前記シリンダ−が前記ピストンからに離
れる方向に摺動するとき開放する弁とを設けておき、ま
た、前記ピストンと前記シリンダ−との間には、シリン
ダ−をピストンから離れる方向に付勢する弾撥体を配
し、この弾撥体の弾撥力に抗して前記シリンダ−に対す
る押圧部を押圧・押圧解除することにより、前記ピスト
ンに対して前記シリンダ−を摺動させ、前記弁を開放さ
せ、前記液室の液を吐出口に吐出するようにした吐出容
器において、前記ピストンの外周壁に前記シリンダ−と
の密閉摺接部となる弾性環状部を唯一設け、また、前記
口部に前記シリンダ−の横振れを規制する筒部を前記ピ
ストン及びシリンダ−と同心状に設け、ここで、筒部の
内周壁にはシリンダ−の外周壁と接し得る横振れ規制部
をシリンダ−の摺動方向の2ヵ所に設け、このうち、シ
リンダ−の摺動前方に位置する横振れ規制部の形成位置
を前記ピストンに設けた弾性環状部の形成位置に対応す
るようにし、更に、前記押圧部は、シリンダ−の摺動方
向に対し斜方面として形成されているものである。 【0003】即ち、シリンダ−をピストンに設けた弾性
環状部と筒部に設けた2ヵ所の横振れ規制部とで摺動自
在に挾持しているものである。 【0004】 【発明が解決しようとする課題】ところで、前記従来技
術においては、液密摺動の気密性やピストンの横振れは
防止できるものの、以下のような問題点が残されてい
た。液を液室より吐出させるためにピストンを押圧する
ときの、その押圧力である。その押圧力は、液室内の液
体を吸い挙げ吐出させる力と、前記シリンダ−とピスト
ンに形成されている弾性環状部並びに筒部に形成されて
いる環状リブとに生じる摺動抵抗力と、シリンダ−の下
部に形成される密閉部における空気が圧縮されるその圧
縮力と、吐出終了後シリンダ−を復帰させるための弾撥
体の弾撥力などの総和となる。ここで、液室内の液体を
吸い挙げ吐出させる力と、液密摺動を行うための摺動抵
抗力と、吐出終了後シリンダ−を復帰させるための弾撥
体の弾撥力は最低必要な力である。よって、本願出願人
は、シリンダ−と環状リブとに生じる摺動抵抗力と、シ
リンダ−の下部に形成される密閉部における空気が圧縮
されるその圧縮力とを低減すべく研究・開発を行った。 【0005】本発明は、内部に液室を設けた容器本体の
口部に前記液室と連通する内孔を有するピストンを設け
るともに、吐出口に連通する内孔を有するシリンダーを
前記ピストンに対して液密摺動可能に取り付け、これに
より、前記液室から前記吐出口に連通する液通路を形成
し、但し、この液通路には、前記シリンダーが前記ピス
トンから離れる方向に摺動するとき開放する弁とを設け
ておき、また、前記ピストンと前記シリンダーとの間に
は、シリンダーをピストンから離れる方向に付勢する弾
撥体を配し、この弾撥体の弾撥力に抗して前記シリンダ
ーに対する押圧部を押圧・押圧解除することにより、前
記ピストンに対して前記シリンダーを摺動させ、前記弁
を開放させ、前記液室の液を吐出口に吐出するようにし
た吐出容器において、前記ピストンの外周壁に前記シリ
ンダーとの密閉摺接部となる弾性環状部を唯一設け、ま
た、前記口部に前記シリンダーの横振れを規制する筒部
を前記ピストン及びシリンダーと同心状に設け、ここ
で、筒部の内周壁にはシリンダーの外周壁と接し得る
振れ規制部となる環状リブを少なくともシリンダーの摺
動方向の異なる2ヵ所以上に設け、前記シリンダーの外
周壁の中間部に部分的に切り欠かれた外周リブを形成す
ると共に、その外周リブより上下方向、つまり、摺動方
向に複数の突部を形成し、このうち、前記外周リブより
下方の突部を筒部の内周面に当接・摺動するようにし、
一方、前記外周リブより上方の突部を縦リブとすると共
に、前記横振れ規制部となる環状リブに当接・摺動させ
るようになしたことを特徴とする吐出容器を要旨とす
る。 【0006】 【作用】ピストンと筒部との摺動部を互いに突部とする
ことにより、点接触、あるいは、線接触となり、ピスト
ンの横触れ防止を損なうことなくピストンと筒部との摺
動抵抗が低減され、また、シリンダ−の外周壁の中間部
に部分的に切り欠かれた外周リブを形成することによっ
て、ピストンの下部に形成される密閉部における空気が
大気中に開放される。尚、シリンダ−を射出成形などに
より成形した場合には、縦リブを形成することにより、
冷却の際に生じる製品の中央部の凹み(一般的には「ひ
け」と云われている)をも防止する。 【0007】 【実施例】添付図面に基づき一例を説明する。容器本体
1は内部に液室2を形成する軟質の袋体3を収容してい
る。直接、容器本体1の内部を液室2としてもよいが、
軟質の袋体3の使用は、収容する液の消費に応じて収縮
し、外気の混入を防止できる上で容易な手段である。こ
の軟質の袋体3は、容器本体1の開口部に取り付けた口
部材4の下側周壁面にヒ−トシ−ルなどにより液漏れし
ないよう取り付けられている。 【0008】口部材4は内側にピストン5を有してい
る。図示のピストン5は、適度の弾力性を発揮させると
ともに大きな口径を確保するために別体のピストン体6
を固着したものとなっているが一体成形品であってもよ
い。また、ピストン5には図面上方に開放できる弁7が
取り付けられている。弁7は、液室2と連通する内孔8
からの液の出口となるものである。 【0009】弾撥体9により図面上方に付勢されたシリ
ンダ−10がこのピストン5に対して液密摺動可能に取
り付けられている。ピストン体6の外周壁に唯一設けた
弾性環状部11がこのシリンダ−10の内孔12の内周
壁に対する密閉摺接部となっている。また、シリンダ−
10には、弁7同様、図面上方に開放できる弁13が取
り付けられている。弁13は、弁7から内孔12に出て
きた液の出口となるものである。 【0010】このシリンダ−10の上部にはノズル体1
4が取り付けられている。図示のノズル体14は、弁1
3から出てきた液の通路を有するノズル部材15と、頭
冠16と、これらノズル部材13と頭冠16とにより挾
着される弾性部材17とよりなっている。ここで、ノズ
ル部材15の液通路は端部近傍まで延在しており、弾性
部材17はこの液通路を常時は遮蔽するものとなってお
り、しかし、頭冠16は、液通路の内圧が高くなったと
き弾性部材17が液通路を開放する変形を許容するもの
となっている。ノズル部材15と弾性部材17の液通路
端部が吐出口18となっている訳である。 【0011】図1において、右上がりになっている頭冠
16の上面部が押圧部となる部分であり、例えば、容器
本体1を把持し、指先でこの頭冠16の上面部を押圧す
るように使用される。前述したように、このとき、押圧
力はシリンダ−10の摺動方向(図面では上下方向)と
一致し難く、むしろ、シリンダ−10を積極的に横振れ
させるものとなり易い。そこで、この横振れ規制部が必
要となり、図示のものでは、口部材4の容器本体1に対
する取り付け部となっている筒部19をピストン5(ピ
ストン体6)及びシリンダ−10と同心状のものとし、
この筒部19の内周壁に図面上下方向位置を異ならせて
環状リブ20、21が形成されている。その環状リブ2
0、21には、部分的に切欠き部20a、21aが、本
例においては等間隔に3ヵ所形成されている。 【0012】また、前記シリンダ−10の外周壁の中間
部には、円周状に外周リブ22が形成されており、その
外周リブ22にも部分的に切欠き部22aが形成されて
いる。その外周リブ22を境に、下方には、前記筒部1
9の内壁面と線接触し摺動する縦リブ23が複数形成さ
れている。一方、前記外周リブ22の上方には、前記筒
部19の内壁面に形成されている外周リブ20、21と
点接触し摺動する、前記縦リブ23より若干低い縦リブ
24が複数形成されている。尚、前記外周リブや縦リブ
の断面形状は、図6に示すように円形状のものが好まし
いが、成形上などの都合によりリブの頂点に平坦部が形
成されたようなものであっても良い。 【0013】環状リブ20、21はシリンダ−10の外
周壁に形成されている複数の縦リブ24と十分に近接す
るよう形成されている。即ち、シリンダ−10の摺動を
阻害するものではないが、シリンダ−10が横振れを生
じれば、可及的小さな横振れ状態でシリンダ−10の外
周壁に当接することができるように形成されている。し
かも、比較的図面下方(即ち、シリンダ−10の摺動前
方)に位置する環状リブ21は、ピストン体6に設けた
弾性環状部11の形成位置に対応する位置に形成されて
いる。 【0014】頭冠16を押圧すれば、このような環状リ
ブ20、21並びに縦リブ23により横振れを規制され
た状態で、また、シリンダ−10の下部に形成された空
間部25の空気が各切欠き部20a、21a並びに切欠
き部22aから漏出する状態で、シリンダ−10が弾撥
体9の弾撥力に抗して図面下方に摺動し、このとき、弁
13が開放してシリンダ−10の内孔12内からノズル
部材15の液通路に出た液により内圧が高くなって弾性
部材17が変形して吐出口18から液が吐出され、ま
た、頭冠16の押圧を解除すれば、弾撥体9の弾撥力に
よってシリンダ−10が図面上方に摺動(復帰)し、こ
のとき、弁7が開放してピストン5の内孔8からシリン
ダ−10の内孔12へ液が出て、次の使用準備がなされ
ることになる。 【0015】図示はしないが、その他にも種々なせる。
例えば、弁7や弁13の形成位置は必ずしも図示したも
のに一致させなくてもよい。弁13を省略し吐出口18
の部分におけるノズル部材15と弾性部材17とによる
弁だけとすることもできる。また、液を完全に遮断する
ものでなくても弁機能を発揮するものは多々あり、それ
らを利用することもできる。また例えば、筒部19を口
部材4と別体として設けるなど、適宜部材は適宜別体
化、一体化してよい。筒部19に形成する横振れ規制部
の形状も、環状リブ20、21となるもの以外とするこ
ともできる。筒部19の内径を環状リブ21から図面上
方に向い次第に小径になるようにし、筒部19の内周壁
の上端縁部を環状リブ20に相当する横振れ規制部とす
ることもできる。また、本例においては、押圧する頭冠
が傾斜している例を挙げたが、これは、特に有効な例で
あって、これに限ることなく、例えば、頭冠が平坦なも
のであっても有効である。 【0016】本発明の吐出容器は、ピストンの外周壁に
前記シリンダーとの密閉摺接部となる弾性環状部を唯一
設け、また、前記口部に前記シリンダーの横振れを規制
する筒部を前記ピストン及びシリンダーと同心状に設
け、ここで、筒部の内周壁にはシリンダーの外周壁と接
し得る横振れ規制部となる環状リブを少なくともシリン
ダーの摺動方向の異なる2ヵ所以上に設け、前記シリン
ダーの外周壁の中間部に部分的に切り欠かれた外周リブ
を形成すると共に、その外周リブより上下方向、つま
り、摺動方向に複数の突部を形成し、このうち、前記外
周リブより下方の突部を筒部の内周面に当接・摺動する
ようにし、一方、前記外周リブより上方の突部を縦リブ
とすると共に、前記横振れ規制部となる環状リブに当接
・摺動させるようになしたので、ピストンの横振れ防止
並びにピストンとシリンダーとの液密摺動性を損なうこ
となく、ピストン筒部との摺動抵抗を低減することがで
き、よって、ピストンの押圧力を低減することができ
る。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic emulsion, a hand cream, a foundation, a shampoo for shampoo, a rinse, a mayonnaise, a ketchup, a paint and the like. Related to a discharge container. 2. Description of the Related Art The present applicant has previously devised a discharge container using a liquid-tight sliding structure between a piston and a cylinder as described in Japanese Utility Model Application No. 4-59476. A piston having an inner hole communicating with the liquid chamber is provided at an opening of a container body having a liquid chamber therein, and a cylinder having an inner hole communicating with the discharge port can be slid in a liquid-tight manner with respect to the piston. To form a liquid passage communicating from the liquid chamber to the discharge port, provided that the liquid passage has a valve that opens when the cylinder slides in a direction approaching the piston, A valve that opens when the cylinder slides away from the piston is provided, and between the piston and the cylinder, a repelling device that urges the cylinder away from the piston is provided. By disposing a body and pressing / releasing a pressing portion against the cylinder against the resilience of the resilient body, the cylinder is slid with respect to the piston to open the valve. , Said In the discharge container configured to discharge the liquid in the chamber to the discharge port, only the elastic annular portion serving as a hermetically sliding contact portion with the cylinder is provided on the outer peripheral wall of the piston, and the cylinder is provided at the port portion. A cylinder portion for restricting the lateral runout is provided concentrically with the piston and the cylinder. Here, the inner peripheral wall of the cylindrical portion is provided with a lateral runout restricting portion which can be in contact with the outer peripheral wall of the cylinder in the direction of the cylinder sliding. And the formation position of the lateral vibration restricting portion located in front of the sliding of the cylinder corresponds to the formation position of the elastic annular portion provided on the piston. Is formed as an oblique surface with respect to the sliding direction. In other words, a cylinder is slidably held between an elastic annular portion provided on a piston and two lateral vibration restricting portions provided on a cylindrical portion. [0004] In the above-mentioned prior art, although the airtightness of liquid-tight sliding and the lateral deflection of the piston can be prevented, the following problems remain. This is the pressing force when the piston is pressed to discharge the liquid from the liquid chamber. The pressing force is a force for sucking and discharging the liquid in the liquid chamber, a sliding resistance force generated on the elastic ring formed on the cylinder and the piston and an annular rib formed on the cylinder, and a cylinder. The sum of the compressive force of the air compressed in the closed portion formed at the lower part of the cylinder and the elasticity of the elastic body for returning the cylinder after the end of the discharge. Here, the force required to suck up and discharge the liquid in the liquid chamber, the sliding resistance force for performing liquid-tight sliding, and the elastic resilience of the elastic body for returning the cylinder after the end of the ejection are at least necessary. Power. Therefore, the applicant of the present application has conducted research and development to reduce the sliding resistance force generated in the cylinder and the annular rib and the compressive force for compressing the air in the closed portion formed in the lower portion of the cylinder. Was. According to the present invention, a piston having an inner hole communicating with the liquid chamber is provided at an opening of a container body having a liquid chamber therein, and a cylinder having an inner hole communicating with a discharge port is provided to the piston. Liquid-slidably mounted, thereby forming a liquid passage communicating from the liquid chamber to the discharge port, provided that the liquid passage is open when the cylinder slides away from the piston. A valve is provided between the piston and the cylinder, and an elastic body for urging the cylinder in a direction away from the piston is disposed between the piston and the cylinder. By pressing / releasing a pressing portion against the cylinder, the cylinder is slid with respect to the piston, the valve is opened, and a discharge container configured to discharge the liquid in the liquid chamber to a discharge port. The piston has a single elastic annular portion on the outer peripheral wall serving as a sealing sliding contact portion with the cylinder, and a cylindrical portion for restricting the lateral run-out of the cylinder is provided concentrically with the piston and the cylinder at the mouth. Here, the inner peripheral wall of the cylindrical portion is provided with a lateral side that can contact the outer peripheral wall of the cylinder.
An annular rib serving as a run-out restricting portion is provided at least at two or more locations in different directions of sliding of the cylinder. Direction, that is, to form a plurality of protrusions in the sliding direction, of which the protrusion below the outer peripheral rib abuts and slides on the inner peripheral surface of the cylindrical portion ,
On the other hand, when the protrusion above the outer peripheral rib is a vertical rib,
The gist of the present invention is to provide a discharge container characterized in that the discharge container is brought into contact with and slides on an annular rib serving as the lateral shake restricting portion . When the sliding portion between the piston and the cylindrical portion is formed as a projecting portion, point contact or line contact occurs, and the sliding between the piston and the cylindrical portion is prevented without impairing the prevention of lateral contact of the piston. By reducing the resistance and forming a partially cut-out outer peripheral rib in the middle of the outer peripheral wall of the cylinder, the air in the closed portion formed at the lower part of the piston is opened to the atmosphere. When the cylinder is formed by injection molding or the like, by forming a vertical rib,
It also prevents dents in the center of the product during cooling (commonly referred to as "sinks"). An example will be described with reference to the accompanying drawings. The container body 1 contains a soft bag 3 forming a liquid chamber 2 therein. Although the inside of the container body 1 may be directly used as the liquid chamber 2,
The use of the soft bag body 3 is an easy means since it shrinks in accordance with consumption of the liquid to be contained, and can prevent entry of outside air. The soft bag 3 is attached to the lower peripheral wall of the mouth member 4 attached to the opening of the container body 1 by a heat seal or the like so as not to leak liquid. The mouth member 4 has a piston 5 inside. The illustrated piston 5 has a separate piston body 6 so as to exhibit appropriate elasticity and secure a large bore.
However, it may be an integrally molded product. The piston 5 is provided with a valve 7 which can be opened upward in the drawing. The valve 7 has an inner hole 8 communicating with the liquid chamber 2.
It is the outlet of the liquid from. A cylinder 10 urged upward in the drawing by an elastic body 9 is attached to the piston 5 so as to be slidable in a liquid-tight manner. The only elastic annular portion 11 provided on the outer peripheral wall of the piston body 6 is a sealing sliding contact portion with the inner peripheral wall of the inner hole 12 of the cylinder 10. Also, the cylinder
Like the valve 7, the valve 10 is provided with a valve 13 that can be opened upward in the drawing. The valve 13 serves as an outlet for the liquid that has come out of the valve 7 into the inner hole 12. A nozzle body 1 is provided above the cylinder 10.
4 are attached. The nozzle body 14 shown is a valve 1
3 includes a nozzle member 15 having a passage for the liquid coming out of 3, a head cap 16, and an elastic member 17 sandwiched between the nozzle member 13 and the cap 16. Here, the liquid passage of the nozzle member 15 extends to the vicinity of the end, and the elastic member 17 always shields this liquid passage. When the height is increased, the elastic member 17 allows deformation to open the liquid passage. That is, the end of the liquid passage of the nozzle member 15 and the elastic member 17 serves as the discharge port 18. In FIG. 1, the upper surface of the crown 16 which rises to the right serves as a pressing portion. For example, the container body 1 is gripped, and the upper surface of the crown 16 is pressed with a fingertip. Used for As described above, at this time, the pressing force is unlikely to coincide with the sliding direction of the cylinder 10 (the vertical direction in the drawing), but rather tends to cause the cylinder 10 to vibrate laterally. Therefore, this lateral run-out restricting portion is required. In the illustrated embodiment, the cylindrical portion 19, which is the mounting portion of the mouth member 4 to the container body 1, is concentric with the piston 5 (piston body 6) and the cylinder-10. age,
Annular ribs 20 and 21 are formed on the inner peripheral wall of the cylindrical portion 19 at different positions in the vertical direction in the drawing. Its annular rib 2
Notches 20a and 21a are partially formed at 0 and 21 at equal intervals in this example. An outer peripheral rib 22 is formed in the middle of the outer peripheral wall of the cylinder 10 in a circumferential shape, and the outer peripheral rib 22 is also partially formed with a notch 22a. The cylindrical portion 1 is located below the outer peripheral rib 22.
A plurality of vertical ribs 23 are formed which slide in line with the inner wall surface of the inner wall 9. On the other hand, a plurality of vertical ribs 24 slightly lower than the vertical ribs 23 are formed above the outer peripheral ribs 22 and slide in point contact with the outer peripheral ribs 20 and 21 formed on the inner wall surface of the cylindrical portion 19. ing. The cross-sectional shape of the outer peripheral ribs and the vertical ribs is preferably a circular shape as shown in FIG. 6. However, even if a flat portion is formed at the apex of the rib for convenience of molding or the like. good. The annular ribs 20, 21 are formed so as to be sufficiently close to a plurality of vertical ribs 24 formed on the outer peripheral wall of the cylinder 10. That is, it does not hinder the sliding of the cylinder 10, but is formed so that the cylinder 10 can abut on the outer peripheral wall of the cylinder 10 in the state of the smallest possible run-out if the cylinder 10 causes a lateral run-out. Have been. In addition, the annular rib 21 located relatively below the drawing (that is, the sliding front of the cylinder 10) is formed at a position corresponding to the formation position of the elastic annular portion 11 provided on the piston body 6. When the crown 16 is pressed, the air in the space 25 formed in the lower part of the cylinder 10 is released in a state in which the lateral run-out is restricted by the annular ribs 20 and 21 and the vertical rib 23. In a state where the cylinder 10 leaks from the notches 20a, 21a and the notch 22a, the cylinder 10 slides downward in the drawing against the resilience of the resilient body 9, and at this time, the valve 13 is opened. The internal pressure is increased by the liquid flowing out of the inner hole 12 of the cylinder 10 into the liquid passage of the nozzle member 15, the elastic member 17 is deformed and the liquid is discharged from the discharge port 18, and the pressure on the crown 16 is released. Then, the cylinder 10 slides (returns) upward in the drawing due to the elastic force of the elastic body 9, and at this time, the valve 7 is opened to move from the inner hole 8 of the piston 5 to the inner hole 12 of the cylinder 10. The liquid will come out and be ready for the next use. Although not shown, various other operations can be performed.
For example, the formation positions of the valve 7 and the valve 13 do not necessarily have to match those illustrated. Dispensing port 18 without valve 13
It is also possible to use only the valve formed by the nozzle member 15 and the elastic member 17 in the portion. In addition, there are many types that do not completely shut off the liquid but exhibit a valve function, and these can also be used. Further, for example, the member may be appropriately separated and integrated as appropriate, for example, by providing the cylindrical portion 19 separately from the mouth member 4. The shape of the horizontal run-out restricting portion formed on the cylindrical portion 19 may be other than the shape that becomes the annular ribs 20 and 21. The inner diameter of the cylindrical portion 19 may be gradually reduced from the annular rib 21 toward the upper side in the drawing, and the upper end edge of the inner peripheral wall of the cylindrical portion 19 may be a lateral vibration restricting portion corresponding to the annular rib 20. In addition, in this example, the example in which the crown to be pressed is inclined is given, but this is a particularly effective example, and is not limited thereto. Is also effective. In the discharge container according to the present invention, a single elastic annular portion serving as a sealing sliding contact portion with the cylinder is provided solely on the outer peripheral wall of the piston, and a cylindrical portion for restricting lateral deflection of the cylinder is provided at the mouth. Provided concentrically with the piston and the cylinder, wherein the inner peripheral wall of the cylindrical portion is provided with at least two or more annular ribs serving as lateral deflection restricting portions that can come into contact with the outer peripheral wall of the cylinder in different directions of sliding of the cylinder, An outer peripheral rib partially cut out is formed at an intermediate portion of an outer peripheral wall of the cylinder, and a plurality of protrusions are formed in a vertical direction from the outer peripheral rib, that is, in a sliding direction. The lower projection is brought into contact with / sliding against the inner peripheral surface of the cylindrical portion , while the upper projection is a vertical rib.
In addition, since the abutment and sliding are performed on the annular rib serving as the lateral vibration restricting portion , the piston cylindrical portion can be prevented without preventing the lateral vibration of the piston and losing the liquid-tight sliding property between the piston and the cylinder. Can be reduced, and the pressing force of the piston can be reduced.

【図面の簡単な説明】 【図1】本発明の吐出容器の一実施例を示す断面図。 【図2】図1のB部拡大図。 【図3】図1の口部材を示す斜視図。 【図4】図1のシリンダ−を示す斜視図。 【図5】図1のA−A線断面図。 【図6】各リブを示す要部断面図。 【符号の説明】 1 容器本体 2 液室 3 軟質の袋体 4 口部材 5 ピストン 6 ピストン体 7 弁 8 内孔 9 弾撥体 10 シリンダ− 11 弾性環状部 12 内孔 13 弁 14 ノズル体 15 ノズル部材 16 頭冠 17 弾性部材 18 吐出口 19 筒部 20 環状リブ(横振れ規制部) 20a 切欠き部 21 環状リブ(横振れ規制部) 21a 切欠き部 22 外周リブ 22a 切欠き部 23 縦リブ 24 縦リブ 25 空間部[Brief description of the drawings] FIG. 1 is a sectional view showing one embodiment of a discharge container of the present invention. FIG. 2 is an enlarged view of a portion B in FIG. FIG. 3 is a perspective view showing a mouth member of FIG. 1; FIG. 4 is a perspective view showing a cylinder of FIG. 1; FIG. 5 is a sectional view taken along line AA of FIG. 1; FIG. 6 is an essential part cross-sectional view showing each rib. [Explanation of symbols] 1 container body 2 liquid chamber 3 Soft bag 4 mouth members 5 piston 6 piston body 7 valves 8 inner hole 9 bullet repellent 10 cylinders 11 Elastic ring 12 inner hole 13 valves 14 Nozzle body 15 Nozzle member 16 caps 17 Elastic member 18 Discharge port 19 cylinder 20 annular rib (lateral run-out control part) 20a Notch 21 annular rib (lateral run-out control part) 21a Notch 22 Outer rib 22a Notch 23 vertical ribs 24 vertical ribs 25 Space

Claims (1)

(57)【特許請求の範囲】 【請求項1】 内部に液室を設けた容器本体の口部に前
記液室と連通する内孔を有するピストンを設けるとも
に、吐出口に連通する内孔を有するシリンダーを前記ピ
ストンに対して液密摺動可能に取り付け、これにより、
前記液室から前記吐出口に連通する液通路を形成し、但
し、この液通路には、前記シリンダーが前記ピストンか
ら離れる方向に摺動するとき開放する弁とを設けてお
き、また、前記ピストンと前記シリンダーとの間には、
シリンダーをピストンから離れる方向に付勢する弾撥体
を配し、この弾撥体の弾撥力に抗して前記シリンダーに
対する押圧部を押圧・押圧解除することにより、前記ピ
ストンに対して前記シリンダーを摺動させ、前記弁を開
放させ、前記液室の液を吐出口に吐出するようにした吐
出容器において、前記ピストンの外周壁に前記シリンダ
ーとの密閉摺接部となる弾性環状部を唯一設け、また、
前記口部に前記シリンダーの横振れを規制する筒部を前
記ピストン及びシリンダーと同心状に設け、ここで、筒
部の内周壁にはシリンダーの外周壁と接し得る横振れ規
制部となる環状リブを少なくともシリンダーの摺動方向
の異なる2ヵ所以上に設け、前記シリンダーの外周壁の
中間部に部分的に切り欠かれた外周リブを形成すると共
に、その外周リブより上下方向、つまり、摺動方向に複
数の突部を形成し、このうち、前記外周リブより下方の
突部を筒部の内周面に当接・摺動するようにし、一方、
前記外周リブより上方の突部を縦リブとすると共に、
横振れ規制部となる環状リブに当接・摺動させるよう
になしたことを特徴とする吐出容器。
(57) [Claim 1] A piston having an inner hole communicating with the liquid chamber is provided at an opening of a container body having a liquid chamber therein, and an inner hole communicating with the discharge port is provided. Having a cylinder slidably attached to the piston in a liquid-tight manner,
Forming a liquid passage communicating from the liquid chamber to the discharge port, provided that the liquid passage has a valve that opens when the cylinder slides away from the piston; And between the cylinder
By disposing an elastic body for urging the cylinder in a direction away from the piston, and pressing and releasing a pressing portion against the cylinder against the elastic force of the elastic body, the cylinder is pressed against the piston. , The valve is opened, and the liquid in the liquid chamber is discharged to a discharge port. In the discharge container, only the elastic annular portion serving as a hermetically sliding contact portion with the cylinder is provided on the outer peripheral wall of the piston. Provided,
A cylinder portion for restricting lateral deflection of the cylinder is provided at the mouth portion concentrically with the piston and the cylinder, and an inner peripheral wall of the cylindrical portion is provided with a lateral deflection rule which can contact an outer peripheral wall of the cylinder.
An annular rib serving as a control portion is provided at least at two or more places different in the sliding direction of the cylinder, an outer peripheral rib partially cut out is formed in an intermediate portion of the outer peripheral wall of the cylinder, and the outer peripheral rib is vertically moved from the outer peripheral rib. In other words, a plurality of protrusions are formed in the sliding direction, of which a protrusion below the outer circumferential rib is brought into contact with and slides on the inner circumferential surface of the cylindrical portion .
A discharge container characterized in that a projection above the outer peripheral rib is a vertical rib, and is brought into contact with and slides on the annular rib serving as the lateral shake restricting portion .
JP23075394A 1994-08-31 1994-08-31 Discharge container Expired - Fee Related JP3508235B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23075394A JP3508235B2 (en) 1994-08-31 1994-08-31 Discharge container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23075394A JP3508235B2 (en) 1994-08-31 1994-08-31 Discharge container

Publications (2)

Publication Number Publication Date
JPH0872947A JPH0872947A (en) 1996-03-19
JP3508235B2 true JP3508235B2 (en) 2004-03-22

Family

ID=16912745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23075394A Expired - Fee Related JP3508235B2 (en) 1994-08-31 1994-08-31 Discharge container

Country Status (1)

Country Link
JP (1) JP3508235B2 (en)

Also Published As

Publication number Publication date
JPH0872947A (en) 1996-03-19

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