JPH1099744A - Discharging device of contents in vessel - Google Patents
Discharging device of contents in vesselInfo
- Publication number
- JPH1099744A JPH1099744A JP8275423A JP27542396A JPH1099744A JP H1099744 A JPH1099744 A JP H1099744A JP 8275423 A JP8275423 A JP 8275423A JP 27542396 A JP27542396 A JP 27542396A JP H1099744 A JPH1099744 A JP H1099744A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- valve
- seat
- mode
- valve mechanism
- 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.)
- Granted
Links
- 238000007599 discharging Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 35
- 238000007906 compression Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims description 33
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000001815 facial effect Effects 0.000 abstract 3
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-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
- B05B11/10—Pump 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
- B05B11/1001—Piston pumps
- B05B11/1009—Piston pumps actuated by a lever
- B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
Landscapes
- Closures For Containers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、吐出部に逆止弁機
構を備えた容器の内容液吐出装置に関し、特に吐出部に
止モードと吐出モードを切り換えるモード切換弁機構を
備えた容器の内容液吐出装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid discharge device for a container having a check valve mechanism at a discharge portion, and more particularly to a container having a mode switching valve mechanism for switching between a stop mode and a discharge mode at a discharge portion. The present invention relates to a liquid discharge device.
【0002】[0002]
【従来の技術】従来のこの種の容器の内容液吐出装置
は、装置本体を容器の開口部に装着して内容液を吸入・
吐出させるようになっており、内容液の吐出方向の流れ
のみを許容し、逆流を防止する逆止弁機構と、この逆止
弁機構の下流側に配置され、逆止弁機構を通過してきた
内容液の外部への流出を阻止する止モードと、内容液を
外部に吐出させる吐出モードとに切り換え可能のモード
切換弁機構と、を備えた構成となっている。2. Description of the Related Art In this type of conventional liquid discharge device for a container, a main body of the container is attached to an opening of the container to suck and discharge the liquid.
A check valve mechanism that allows only the flow of the content liquid in the discharge direction and prevents backflow, and is disposed downstream of the check valve mechanism and has passed through the check valve mechanism The configuration is provided with a mode switching valve mechanism that can switch between a stop mode for preventing the content liquid from flowing out to the outside and a discharge mode for discharging the content liquid to the outside.
【0003】逆止弁機構は、弁座と、弁座に接離可能の
弁体部と、この弁体部を前記弁座に対して所定圧で押圧
するためのばね部とを備えており、吐出モードにおいて
も、一定圧が作用しないと液体が吐出しないようになっ
ていた。[0003] The check valve mechanism includes a valve seat, a valve body that can be brought into contact with and separated from the valve seat, and a spring part that presses the valve body against the valve seat at a predetermined pressure. Also, in the discharge mode, the liquid is not discharged unless a constant pressure is applied.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た従来技術の場合には、ばね部が常に一定負荷状態に圧
縮された状態となっているために、長期保管あるいは長
期市場在庫時に、ばね部材料等の経時クリープが促進さ
れ、弁体部と弁座との負荷荷重(シール荷重)が低減
し、内容液吐出後、吐出口から液垂れが発生するおそれ
がある。また、誤操作による僅かな操作力でも吐出漏れ
が発生してしまう等の機能低下のおそれがあった。特
に、ばね部が樹脂材料の場合に顕著である。However, in the case of the above-mentioned prior art, since the spring portion is always compressed to a constant load state, the spring portion material is not stored during long-term storage or long-term stock. , Etc., is promoted, the load applied between the valve body and the valve seat (seal load) is reduced, and after the content liquid is discharged, liquid dripping may occur from the discharge port. In addition, there is a possibility that the function may be deteriorated, for example, ejection leakage may occur even with a slight operation force due to an erroneous operation. This is particularly remarkable when the spring portion is made of a resin material.
【0005】本発明の目的は、ばね部の圧縮荷重に起因
する機能低下を可及的に防止し得る容器の内容液吐出装
置を提供することにある。An object of the present invention is to provide an apparatus for discharging the contents of a container, which can prevent the function from being deteriorated due to the compressive load of the spring portion as much as possible.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明にあっては、装置本体を容器の開口部に装着
して内容液を吸入・吐出させるもので、内容液の吐出方
向の流れのみを許容し、逆流を防止する逆止弁機構と、
該逆止弁機構の下流側に配置され、逆止弁機構を通過し
てきた内容液の外部への流出を阻止する止モードと、内
容液を外部に吐出させる吐出モードとに切り換え可能の
モード切換弁機構と、を備え、前記逆止弁機構が、弁座
と、該弁座に接離可能の弁体部と、該弁体を前記弁座に
対して押圧するためのばね部と、を備えた容器の内容液
吐出装置において、前記吐出モードの場合に前記ばね部
を所定量圧縮し、前記止モードの場合にはばね部をほぼ
非圧縮状態とする圧縮量可変手段を設けたことを特徴と
する。In order to achieve the above object, according to the present invention, an apparatus main body is mounted on an opening of a container to suck and discharge a content liquid. A check valve mechanism that allows only the flow of
A mode switch disposed downstream of the check valve mechanism and capable of switching between a stop mode in which the content liquid that has passed through the check valve mechanism is prevented from flowing out and a discharge mode in which the content liquid is discharged to the outside. A valve mechanism, wherein the check valve mechanism includes a valve seat, a valve body that can be brought into and out of contact with the valve seat, and a spring part for pressing the valve body against the valve seat. In the apparatus for discharging a liquid content of a container provided, a compression amount variable means for compressing the spring portion by a predetermined amount in the discharge mode and providing the spring portion in a substantially non-compressed state in the stop mode is provided. Features.
【0007】非圧縮状態は圧縮量が完全に0の場合だけ
でなく、経時クリープの影響がない範囲で若干圧縮して
いてもよい。The non-compressed state is not limited to the case where the amount of compression is completely zero, but may be slightly compressed within the range where there is no influence of creep over time.
【0008】本発明の容器の吐出装置にあっては、使用
する際、モード切換弁機構によって吐出モードに切り換
える。この吐出モードの場合には、圧縮量可変手段によ
って逆止弁機構のばね部が所定量圧縮され、その弾性復
元力によって弁体部が弁座に対して押圧されて、所定の
シール荷重が設定される。In the container discharging apparatus of the present invention, the mode is switched to the discharging mode by the mode switching valve mechanism when used. In the case of this discharge mode, the spring portion of the check valve mechanism is compressed by a predetermined amount by the compression amount variable means, and the valve body is pressed against the valve seat by the elastic restoring force to set a predetermined seal load. Is done.
【0009】一方、使用が終わると、モード切換弁機構
によって止モードに切り換える。すると、圧縮量可変手
段によって、逆止弁機構のばね部が非圧縮状態となって
自由長に維持される。On the other hand, when the use is completed, the mode is switched to the stop mode by the mode switching valve mechanism. Then, the spring portion of the check valve mechanism is in a non-compressed state and is maintained at a free length by the compression amount variable means.
【0010】したがって、止モードに切り換えておけ
ば、長期保管あるいは長期市場在庫時においても、ばね
部の経時クリープが防止され逆止弁機構の機能低下が生
じない。すなわち、使用時に吐出モードに切り換えられ
た時点で弁体部と弁座との間の適正なシール荷重を得る
ことができ、内容液吐出後、吐出口から液垂れが発生す
るおそれもないし、誤操作による僅かな操作力によって
吐出漏れが発生するおそれもなくなる。Therefore, if the mode is switched to the stop mode, the creep of the spring portion is prevented over time even during long-term storage or long-term stock, and the function of the check valve mechanism does not deteriorate. That is, at the time of switching to the discharge mode at the time of use, an appropriate sealing load between the valve body and the valve seat can be obtained. And there is no danger that discharge leakage will occur due to a slight operating force.
【0011】上記圧縮量可変手段は、モード切換弁機構
の切り換え動作により、ばね部の弁体部とは反対側の端
部位置を、吐出モードの場合には自由長の場合のばね部
の端部位置よりも所定の圧縮代分だけ弁座に近付け、止
モードの場合にはほぼ自由長の場合のばね部の端部位置
に位置させるばね座によって構成されることを特徴とす
る。The compression amount changing means changes the end position of the spring portion on the side opposite to the valve body by the switching operation of the mode switching valve mechanism, and sets the end of the spring portion in the free length in the discharge mode. It is characterized by a spring seat that is closer to the valve seat by a predetermined compression allowance than the part position, and is located at the end position of the spring part in the case of the stop mode in the case of the stop mode.
【0012】すなわち、ばね座によって逆止弁機構のば
ね部の端部の位置を変えることにより、ばね部の圧縮代
を変化させる。このようにすれば、ばね部の圧縮代が正
確に定まる。That is, the compression allowance of the spring portion is changed by changing the position of the end of the spring portion of the check valve mechanism by the spring seat. With this configuration, the compression allowance of the spring portion is accurately determined.
【0013】上記モード切換弁機構は操作部材の回転操
作によってモードを切り換える構成で、ばね座は操作部
材の回転位置によって弁座側への突出高さが変化するカ
ムとなっていることを特徴とする。The mode switching valve mechanism switches the mode by rotating the operating member, and the spring seat is a cam whose height protrudes toward the valve seat depending on the rotational position of the operating member. I do.
【0014】このようにすれば、モード切り換え動作に
連動してばね部の圧縮量調整をスムースに行うことがで
きる。According to this configuration, the compression amount of the spring portion can be smoothly adjusted in conjunction with the mode switching operation.
【0015】ばね部は樹脂製であり、弁体部と一体成形
されていることを特徴とする。The spring portion is made of resin, and is characterized by being integrally formed with the valve body portion.
【0016】樹脂材料の場合には経時クリープが顕著で
あるが、未使用の止モードの間は非圧縮状態とすること
により、クリープの進行を低減することができる。In the case of the resin material, the creep with time is remarkable, but the progress of the creep can be reduced by keeping the uncompressed state during the unused stop mode.
【0017】樹脂製とすれば金属製のものよりも安価で
あるばかりか、装置本体は通常樹脂成形品であり、ばね
部および弁体部も樹脂製することにより、使用後廃棄時
に装置本体と分離回収する必要がない。もっとも、ばね
部は金属製としてもよい。When made of resin, not only is it cheaper than metal, but also the device body is usually a resin molded product, and the spring portion and the valve body are also made of resin. There is no need to separate and collect. However, the spring portion may be made of metal.
【0018】[0018]
【発明の実施の形態】以下に本発明を図示の実施の形態
に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiment.
【0019】図1乃至図5は、本発明の一実施の形態に
係る容器の吐出装置が示されている。FIGS. 1 to 5 show a container discharging apparatus according to an embodiment of the present invention.
【0020】すなわち、この吐出装置1はいわゆるトリ
ガ式ポンプディスペンサで、図4に示されるように、容
器2の開口部としての口頚部3に内容液を吸入して外部
に吐出するための装置本体4が装着されている。この装
置本体4には、吐出通路5が設けられた吐出ノズル6
と、液体の吐出方向の流れのみを許容し逆流を防止する
逆止弁機構7と、逆止弁機構7の下流側に配置されるモ
ード切換弁機構8と、を備えた構成となっている。That is, the discharge device 1 is a so-called trigger-type pump dispenser, and as shown in FIG. 4, a device body for sucking a content liquid into a mouth and neck 3 as an opening of a container 2 and discharging the liquid to the outside. 4 is attached. The apparatus main body 4 includes a discharge nozzle 6 provided with a discharge passage 5.
A check valve mechanism 7 that allows only the flow of the liquid in the discharge direction and prevents the backflow, and a mode switching valve mechanism 8 that is disposed downstream of the check valve mechanism 7. .
【0021】装置本体4は、容器口頚部3にコンテナキ
ャップ41を介して固定されるリテーナ42と、リテー
ナ42に保持される中空のボディ43と、を備えてい
る。このボディ43には下方に開放されたシリンダ部4
4が固定されており、シリンダ部44にピストン部材4
5が往復移動自在に挿入されている。このピストン部材
45とシリンダ部44の上底間にスプリング46が介装
されている。このスプリング46によってピストン部材
45をシリンダ部44から突出させる方向に付勢し、シ
リンダ部44内を負圧にして逆止弁機構7を閉じた状態
で吸入弁47を開き、ディップチューブ48を通じて内
容液をシリンダ部44内に吸入する。The apparatus main body 4 includes a retainer 42 fixed to the container mouth and neck 3 via a container cap 41, and a hollow body 43 held by the retainer 42. This body 43 has a cylinder portion 4 opened downward.
4 is fixed, and the piston member 4
5 is reciprocally inserted. A spring 46 is interposed between the piston member 45 and the upper bottom of the cylinder portion 44. The spring 46 urges the piston member 45 in a direction to protrude from the cylinder portion 44, and opens the suction valve 47 in a state where the inside of the cylinder portion 44 is set to a negative pressure and the check valve mechanism 7 is closed. The liquid is sucked into the cylinder part 44.
【0022】そして、ボディ43に取り付けられたトリ
ガレバー49をスプリング46のばね力に抗して引くこ
とによって、ピストン部材45をシリンダ部44内に押
し込んで吸入弁47を閉じた状態でシリンダ部44内を
圧縮し、逆止弁機構7を開いて、シリンダ部44内に吸
入された内容液を吐出ノズル6を通じて吐出するように
なっている。Then, by pulling the trigger lever 49 attached to the body 43 against the spring force of the spring 46, the piston member 45 is pushed into the cylinder portion 44 and the cylinder portion 44 is closed in a state where the suction valve 47 is closed. The interior is compressed, the check valve mechanism 7 is opened, and the content liquid sucked into the cylinder portion 44 is discharged through the discharge nozzle 6.
【0023】逆止弁機構7は、弁座10と、この弁座1
0に接離可能の弁体部11と、弁体部11を前記弁座1
0に対して押圧するためのばね部12と、を備えた構成
となっており、所定圧以下では閉弁状態を維持し、所定
圧を越えると開弁する。The check valve mechanism 7 includes a valve seat 10 and the valve seat 1.
0 and a valve body 11 that can be brought into contact with and separated from the valve seat 1.
And a spring portion 12 for pressing against zero. The valve is kept closed at a predetermined pressure or less, and opens when the pressure exceeds the predetermined pressure.
【0024】この実施の形態では、弁体部11とばね部
12は樹脂成形品で、図5(a)に示すようにプラスチ
ックバルブ13として一体成形されている。ばね部12
は円弧状に膨らんだ2片の円弧状弾性片部14,14に
よって構成されており、その一端に弁体部11が一体成
形され、他端に軸部15が設けられている。そして、円
弧状弾性片部14の軸方向と直交する方向の撓みによっ
て、弁体部11が軸方向に弾性的に変位するようになっ
ている。軸部15には複数のガイド凸部16が側方に突
出している。In this embodiment, the valve portion 11 and the spring portion 12 are resin molded products, and are integrally formed as a plastic valve 13 as shown in FIG. Spring part 12
Is constituted by two arcuate elastic pieces 14, 14 bulging in an arc shape, a valve body 11 is integrally formed at one end, and a shaft 15 is provided at the other end. The valve body 11 is elastically displaced in the axial direction by the bending of the arcuate elastic piece 14 in the direction orthogonal to the axial direction. A plurality of guide projections 16 protrude laterally from the shaft 15.
【0025】ばね部12の形状は、このような円弧状弾
性片部14だけでなく、図5(b)に示すような、軸方
向に弾性変形可能な弾性リング部17を複数直列配置し
た形状でもよいし、図示しないがコイルスプリング形状
としてもよいし、その他軸方向に弾性変形可能な種々の
形状を採用することができる。The shape of the spring portion 12 is not limited to the arcuate elastic piece portion 14 but also includes a plurality of elastic ring portions 17 which can be elastically deformed in the axial direction, as shown in FIG. Although not shown, a coil spring shape (not shown) may be used, and other various shapes that can be elastically deformed in the axial direction can be adopted.
【0026】弁座10は、装置本体のシリンダ部44か
ら延びる吐出ノズル6の開口端部に設けられており、こ
の弁座10に対してプラスチックバルブ13の弁体部1
1が軸方向に接離して吐出通路5を開閉するようになっ
ている。The valve seat 10 is provided at the opening end of the discharge nozzle 6 extending from the cylinder portion 44 of the apparatus main body.
1 is configured to open and close the discharge passage 5 by coming and going in the axial direction.
【0027】モード切換弁機構8は、逆止弁機構7を通
過してきた内容液を止める止モードと(図1(a),図
2(a)参照)、内容液を吐出させる吐出モードと(図
1(b),図2(b)参照)、に切り換えるもので、こ
の実施の形態では、装置本体4の吐出ノズル6に差し込
み固定されるバルブインサート81と、このバルブイン
サート81に対して回転自在に装着される操作部材とし
てのスライドバルブ82とによって構成されており、ス
ライドバルブ82の回転位置によって、止モードと、吐
出モードとを切り換えるように構成されている。The mode switching valve mechanism 8 includes a stop mode for stopping the content liquid passing through the check valve mechanism 7 (see FIGS. 1A and 2A), and a discharge mode for discharging the content liquid. 1 (b) and FIG. 2 (b)). In this embodiment, the valve insert 81 is inserted into and fixed to the discharge nozzle 6 of the apparatus main body 4, and rotates with respect to the valve insert 81. The slide valve 82 is freely mounted, and is configured to switch between a stop mode and a discharge mode depending on the rotational position of the slide valve 82.
【0028】すなわち、バルブインサート81にはプラ
グ部811が設けられ、スライドバルブ82にはこのプ
ラグ部811に嵌合される穴部821aが設けられた第
1筒部821が設けられている。スライドバルブ82の
第1筒部821の穴底壁821bには吐出口95が設け
られ、第1筒部821の開口端部に流入口96が開口し
ている。プラグ部811外周と第1筒部821の穴82
1a内周との嵌着面間には、前記流入口96側に連通す
る第1流路91と、前記吐出口95側に連通する第2流
路92が設けられており、プラグ部811と第1筒部8
21の相対回転位置によって選択的に第1流路91と第
2流路92を連通,遮断して、吐出モードと止モードを
切り換えるようになっている。すなわち、第1流路91
と第2流路92が連通すると吐出モード、第1流路91
と第2流路92が遮断されると止モードである。図示例
の場合には120度ずつ3個所の切り換え位置があり、
止モードが1個所、吐出モードが2個所で設定される。That is, the valve insert 81 is provided with a plug portion 811, and the slide valve 82 is provided with a first cylindrical portion 821 provided with a hole 821 a fitted in the plug portion 811. A discharge port 95 is provided in a hole bottom wall 821 b of the first cylindrical portion 821 of the slide valve 82, and an inflow port 96 is opened at an open end of the first cylindrical portion 821. Outer periphery of plug portion 811 and hole 82 of first cylindrical portion 821
A first flow path 91 communicating with the inflow port 96 side and a second flow path 92 communicating with the discharge port 95 side are provided between the fitting surfaces with the inner periphery of 1a. 1st cylinder part 8
The first flow path 91 and the second flow path 92 are selectively communicated and blocked according to the relative rotation position of 21, so that the discharge mode and the stop mode are switched. That is, the first flow path 91
When the and the second flow path 92 communicate with each other, the discharge mode, the first flow path 91
When the second flow path 92 is shut off, the stop mode is set. In the case of the illustrated example, there are three switching positions at 120 degrees each,
One stop mode and two discharge modes are set.
【0029】さらに、この図示例の場合には、プラグ部
811の先端壁と第1筒部821の穴底壁821a間
に、吐出口95と連通する室94と、この室94から半
径方向外方に延びる第3流路93が設けられており、こ
の第3流路93および室94に通じて、第2流路92が
吐出口95と連通するようになっている。この第2流路
92と第3流路93間の連通,遮断が、前記第1流路9
1と第2流路92の連通,遮断と同期して切り換わるよ
うになっている。Further, in the illustrated example, a chamber 94 communicating with the discharge port 95 is provided between the distal end wall of the plug portion 811 and the hole bottom wall 821a of the first cylindrical portion 821, and a radially outward portion from the chamber 94. A third flow passage 93 extending in the direction is provided, and the second flow passage 92 communicates with the discharge port 95 through the third flow passage 93 and the chamber 94. The communication between the second flow path 92 and the third flow path 93 is interrupted by the first flow path 9.
The switching is performed in synchronization with the communication and cutoff of the first and second flow paths 92.
【0030】上記バルブインサート81は、ボディ43
の吐出ノズル6外周に差し込み結合される管継手部83
と、この管継手部83に対してその中心軸が下方に所定
量オフセットさせて連結されたインサート本体部84
と、を備えた構成となっている。The valve insert 81 is mounted on the body 43
Fitting 83 that is inserted and connected to the outer periphery of the discharge nozzle 6
And an insert body 84 connected to the pipe joint 83 with its central axis offset downward by a predetermined amount.
, Is provided.
【0031】この管継手部83内に上記プラスチックバ
ルブ13が挿入されており、ガイド凸部16が管継手部
83の内周に摺動自在に接触して、弁体部11の位置を
弁座10と合致するように位置決めすると同時に、軸方
向移動を案内している。The plastic valve 13 is inserted into the pipe joint portion 83, and the guide convex portion 16 slidably contacts the inner periphery of the pipe joint portion 83 to move the position of the valve body 11 to the valve seat. At the same time as positioning so as to coincide with 10, the axial movement is guided.
【0032】インサート本体部84は、管継手部83の
一端が固定される端壁部841と、この端壁部の中央部
に管継手部と反対側に片持ち状態に突設される上記プラ
グ部811と、端壁部841外端部からプラグ部811
と同心的に突設される外筒部842と、外筒部842と
プラグ部811の間に同心的に突設される内筒部843
と、を備えている。The insert body 84 includes an end wall portion 841 to which one end of the pipe joint portion 83 is fixed, and the above-described plug protruding from the center of the end wall portion in a cantilever state on the opposite side to the pipe joint portion. Part 811 and a plug part 811 from the outer end of the end wall part 841.
An outer cylindrical portion 842 protruding concentrically with the inner cylindrical portion 843 protruding concentrically between the outer cylindrical portion 842 and the plug portion 811.
And
【0033】一方、スライドバルブ82は、上述したプ
ラグ部811が回転摺動自在に挿入される穴部821a
を備えた第1筒部821と、この第1筒部821の外側
に所定寸法離して同心的に設けられインサート本体部8
4の外筒部842外周に回転摺動自在に嵌合される環状
溝部822dを備えた第2筒部822と、この第2筒部
822のさらに外側に設けられる略三角形状の第3筒部
823と、を備えている。第2筒部822は、環状溝部
824を挟む内周壁822aと外周壁822bを有し、
環状溝822dの環状底壁822cによって連結されて
いる。外周壁822bの長さは第1筒部821の長さと
ほぼ等しく、内周壁822aの長さはその半分程度とな
っている。この内周壁822aの端部と第1筒部821
の中途部とが半径方向に延びる環状の第1連結壁824
により連結されている。したがって、第1筒部821外
周とインサート本体部84の外筒部842内周と、第1
連結壁824とインサート本体部842の端壁部841
とによって囲まれた密閉された環状空間85が構成され
ている。On the other hand, the slide valve 82 has a hole 821a into which the plug 811 is rotatably slidably inserted.
A first cylindrical portion 821 provided with an insert main body 8 which is provided concentrically outside the first cylindrical portion 821 with a predetermined distance therebetween.
4, a second cylindrical portion 822 having an annular groove 822d rotatably slidably fitted to the outer periphery of the outer cylindrical portion 842, and a substantially triangular third cylindrical portion provided further outside the second cylindrical portion 822. 823. The second cylindrical portion 822 has an inner peripheral wall 822a and an outer peripheral wall 822b sandwiching the annular groove 824,
They are connected by an annular bottom wall 822c of the annular groove 822d. The length of the outer peripheral wall 822b is substantially equal to the length of the first cylindrical portion 821, and the length of the inner peripheral wall 822a is about half thereof. The end of the inner peripheral wall 822a and the first cylindrical portion 821
Annular first connecting wall 824 whose middle part extends in the radial direction
Are connected by Therefore, the outer periphery of the first tubular portion 821 and the inner periphery of the outer tubular portion 842 of the insert body portion 84,
Connecting wall 824 and end wall 841 of insert body 842
To form a closed annular space 85 surrounded by.
【0034】インサート本体部84の端壁部841に
は、この環状空間85と管継手部83の内部空間とを連
通する穴86が貫通形成されており、この穴86に上記
したプラチックバルブ13のばね部12の弁体部11と
反対側端部に位置する軸部15が挿入され、軸部15の
先端が環状空間85内に突出している。また、この穴8
6は第1筒部821の開口端部に開口する流入口96と
連通している。A hole 86 communicating the annular space 85 and the internal space of the pipe joint portion 83 is formed through the end wall portion 841 of the insert main body 84. The hole 86 communicates with the plastic valve 13. The shaft 15 located at the end of the spring 12 opposite to the valve body 11 is inserted, and the tip of the shaft 15 protrudes into the annular space 85. Also, this hole 8
Numeral 6 communicates with an inflow port 96 opening at the opening end of the first cylindrical portion 821.
【0035】一方、環状空間85内に、上記第1連結壁
824にから環状空間85に向かって突出する圧縮量可
変手段としてのばね座18が設けられている。On the other hand, in the annular space 85, a spring seat 18 is provided as a compression amount varying means projecting from the first connecting wall 824 toward the annular space 85.
【0036】このばね座18は、モード切換弁機構8の
切り換え動作により、ばね部12の弁体部11とは反対
側の端部である軸部15の先端位置を、吐出モードの場
合には自由長L0の場合の端部位置よりも所定の圧縮代
a分だけ弁座10に近付け、ばね部12を所定寸法L1
に圧縮して弁体部11と弁座10間のシール荷重を所定
荷重に設定し、止モードの場合にはほぼ自由長L0の場
合の端部位置に位置させて、ばね部12を非圧縮状態に
維持するようになっている。By the switching operation of the mode switching valve mechanism 8, the spring seat 18 changes the tip end position of the shaft portion 15 which is the end of the spring portion 12 on the side opposite to the valve body portion 11 in the case of the discharge mode. The spring portion 12 is moved closer to the valve seat 10 by a predetermined compression allowance a than the end position in the case of the free length L0, and the spring portion 12 is moved to a predetermined size L1.
To set the seal load between the valve body 11 and the valve seat 10 to a predetermined load. In the stop mode, the seal portion is almost positioned at the end position in the case of the free length L0, and the spring portion 12 is uncompressed. The state is maintained.
【0037】すなわち、図3に示すように、ばね座18
は第1筒部821を取り囲むように円筒状に成形され、
円周方向に沿って弁座10側への突出高さが高い圧縮座
面181と、この圧縮座面181よりも圧縮代a分だけ
突出高さの低い非圧縮座面182が形成されている。圧
縮座面181と非圧縮座面182の境界部は傾斜面18
3となっている。That is, as shown in FIG.
Is formed into a cylindrical shape so as to surround the first cylindrical portion 821,
A compression seat surface 181 having a higher protrusion height toward the valve seat 10 along the circumferential direction and a non-compression seat surface 182 having a lower protrusion height than the compression seat surface 181 by a compression allowance a are formed. . The boundary between the compressed seat surface 181 and the non-compressed seat surface 182 is
It is 3.
【0038】したがって、プラスチックバルブ13の軸
部15がばね座18の非圧縮座面182に当接する範囲
がバルブの非圧縮範囲xであり、圧縮座面181に当接
する範囲が圧縮範囲となる。止モードでは、ばね座18
の非圧縮座面182の範囲プラスチックバルブ13の軸
部15が位置し、吐出モードでは、ばね座18の圧縮座
面181にプラスチックバルブ13の軸部15先端が当
接するような位置関係に設定されている。Accordingly, the range in which the shaft portion 15 of the plastic valve 13 contacts the non-compression seat surface 182 of the spring seat 18 is the non-compression range x of the valve, and the range in which it contacts the compression seat surface 181 is the compression range. In the stop mode, the spring seat 18
The shaft portion 15 of the plastic valve 13 is located in the non-compression seat surface 182 of the spring valve 18. In the discharge mode, the positional relationship is set such that the tip of the shaft portion 15 of the plastic valve 13 contacts the compression seat surface 181 of the spring seat 18. ing.
【0039】本発明の容器の吐出装置にあっては、使用
する際には、図1(b),図2(b)に示すように、モ
ード切換弁機構8のスライドバルブ82を回転して吐出
モードに切り換える。このとき、ばね座18の圧縮座面
181がプラスチックバルブ13の軸部15先端に位置
するので、プラスチックバルブ13の軸部15先端が圧
縮座面181に乗り上げ、逆止弁機構7のばね部12が
所定量圧縮されて弁体部11が弁座10に対して所定荷
重で押圧され、所定のシール荷重が設定される。In the container discharging apparatus of the present invention, when used, the slide valve 82 of the mode switching valve mechanism 8 is rotated as shown in FIGS. 1 (b) and 2 (b). Switch to ejection mode. At this time, since the compression seat 181 of the spring seat 18 is located at the tip of the shaft 15 of the plastic valve 13, the tip of the shaft 15 of the plastic valve 13 rides on the compression seat 181 and the spring 12 of the check valve mechanism 7. Is compressed by a predetermined amount, the valve body 11 is pressed against the valve seat 10 with a predetermined load, and a predetermined sealing load is set.
【0040】一方、使用が終わると、スライドバルブ8
2を回転させて止モードに切り換える。すると、ばね座
18も同時に回転し、逆止弁機構7のプラスチックバル
ブ13の軸部15位置にばね座18の非圧縮座面182
が位置し、ばね部12が非圧縮状態となって自由長に維
持される。On the other hand, when the slide valve 8 has been used,
Rotate 2 to switch to stop mode. Then, the spring seat 18 also rotates at the same time, and the non-compressed seat surface 182 of the spring seat 18 is located at the position of the shaft 15 of the plastic valve 13 of the check valve mechanism 7.
Is located, and the spring portion 12 is kept in a free length in an uncompressed state.
【0041】したがって、長期保管あるいは長期市場在
庫時において、止モードに切り換えておけば、ばね部1
2の経時クリープが防止され逆止弁機構7の機能低下が
防止できる。すなわち、使用時に吐出モードに切り換え
られた時点で弁体部11と弁座10との間の適正なシー
ル荷重を得ることができ、内容液吐出後、吐出口95か
ら液垂れが発生するおそれもないし、誤操作による僅か
な操作力によって吐出漏れが発生するおそれもなくなな
る。Therefore, if the mode is switched to the stop mode during long-term storage or long-term market stock, the spring 1
2 is prevented, and the function of the check valve mechanism 7 is prevented from deteriorating. That is, an appropriate sealing load between the valve body 11 and the valve seat 10 can be obtained when the mode is switched to the discharge mode at the time of use, and there is a possibility that liquid dripping may occur from the discharge port 95 after discharging the content liquid. In addition, there is no possibility that a discharge leak may occur due to a slight operation force due to an erroneous operation.
【0042】なお、上記実施の形態では、本発明をトリ
ガ式ポンプディスペンサに適用した場合について説明し
たが、吐出部に逆止弁機構を備えた種々のポンプディス
ペンサに適用することができる。また、弁体部とばね部
を一体成形した場合を例示したが別体構成としてもよ
い。また、ばね部については、金属製のスプリングにつ
いても適用することができる。In the above embodiment, the case where the present invention is applied to a trigger type pump dispenser has been described. However, the present invention can be applied to various pump dispensers having a check valve mechanism in a discharge section. In addition, although the case where the valve body and the spring are integrally formed is illustrated, a separate structure may be used. Further, the spring portion can be applied to a metal spring.
【0043】[0043]
【発明の効果】以上説明したように、本発明によれば、
圧縮量可変手段によって、逆止弁機構のばね部を、吐出
モードのときにのみ圧縮して所定のシール荷重を設定
し、止モードのときには非圧縮状態に切り換えるように
したので、止モードに切り換えておくことにより、ばね
部の経時クリープを防止でき、逆止弁機構の機能低下を
防止することができる。As described above, according to the present invention,
The compression amount variable means compresses the spring portion of the check valve mechanism only in the discharge mode to set a predetermined seal load, and switches to the non-compressed state in the stop mode. By doing so, the creep of the spring portion with time can be prevented, and the function of the check valve mechanism can be prevented from deteriorating.
【0044】また、圧縮量可変手段として、ばね部を支
持するばね座の位置を変える構成とすれば、ばね部の圧
縮代を正確に定めることができる。Also, if the position of the spring seat that supports the spring portion is changed as the compression amount variable means, the compression allowance of the spring portion can be accurately determined.
【0045】また、ばね座を弁座側への突出高さが変化
するカムによって構成すれば、ばね部の圧縮量調整をス
ムースに行うことができる。Further, if the spring seat is constituted by a cam whose height protrudes toward the valve seat, the amount of compression of the spring portion can be adjusted smoothly.
【0046】特に、ばね部が樹脂製の場合には経時クリ
ープが顕著であるが、本発明のように未使用の止モード
の間は非圧縮状態とすることにより、クリープの進行を
低減することができる。In particular, when the spring portion is made of a resin, the creep with time is remarkable. However, as in the present invention, the uncompressed state during the unused stop mode reduces the progress of the creep. Can be.
【図面の簡単な説明】[Brief description of the drawings]
【図1】図1は本発明の一実施の形態に係る容器の内容
液吐出装置を示すもので、同図(a)は止モードの要部
断面図、同図(b)は吐出モードの要部断面図である。FIGS. 1A and 1B show an apparatus for discharging a content liquid of a container according to an embodiment of the present invention. FIG. 1A is a sectional view of a main part in a stop mode, and FIG. It is principal part sectional drawing.
【図2】図2(a)は図1(a)のA−A線断面図、同
図(b)は図1(b)のB−B線断面図である。2A is a sectional view taken along line AA of FIG. 1A, and FIG. 2B is a sectional view taken along line BB of FIG. 1B.
【図3】図3は図1の装置のばね座部分を概念的に示す
斜視図である。FIG. 3 is a perspective view conceptually showing a spring seat portion of the apparatus shown in FIG. 1;
【図4】図4は図1の内容液吐出装置が適用されるトリ
ガ式ポンプディスペンサの全体構成図である。FIG. 4 is an overall configuration diagram of a trigger-type pump dispenser to which the content liquid discharging device of FIG. 1 is applied.
【図5】図5(a)は図1のプラスチックバルブの概略
斜視図、同図(b)はプラスチックバルブの他の形態を
示す概略斜視図である。5 (a) is a schematic perspective view of the plastic valve of FIG. 1, and FIG. 5 (b) is a schematic perspective view showing another embodiment of the plastic valve.
1 吐出装置 2 容器 3 口頚部(開口部) 4 装置本体 6 吐出ノズル 7 逆止弁機構 8 モード切換弁機構 81 バルブインサート 811 プラグ部 82 スライドバルブ 821 第1筒部 821a 穴部 91〜93 第1〜第3流路 94 室 95 吐出口 96 流入口 10 弁座 11 弁体部 12 ばね部 13 プラスチックバルブ 14 円弧状弾性片部 15 軸部 16 ガイド凸部 17 弾性リング部 18 ばね座 181 圧縮座面 182 非圧縮座面 183 傾斜面 DESCRIPTION OF SYMBOLS 1 Discharge apparatus 2 Container 3 Neck and neck part (opening part) 4 Main body 6 Discharge nozzle 7 Check valve mechanism 8 Mode switching valve mechanism 81 Valve insert 811 Plug part 82 Slide valve 821 First cylinder part 821a Hole 91-93 First To third flow path 94 chamber 95 discharge port 96 inflow port 10 valve seat 11 valve body part 12 spring part 13 plastic valve 14 arcuate elastic piece part 15 shaft part 16 guide convex part 17 elastic ring part 18 spring seat 181 compression seat surface 182 Non-compressed seat surface 183 Inclined surface
Claims (4)
を吸入・吐出させるもので、 内容液の吐出方向の流れのみを許容し、逆流を防止する
逆止弁機構と、 該逆止弁機構の下流側に配置され、逆止弁機構を通過し
てきた内容液の外部への流出を阻止する止モードと、内
容液を外部に吐出させる吐出モードとに切り換え可能の
モード切換弁機構と、を備え、 前記逆止弁機構が、弁座と、該弁座に接離可能の弁体部
と、該弁体を前記弁座に対して押圧するためのばね部
と、を備えた容器の内容液吐出装置において、 前記吐出モードの場合に前記ばね部を所定量圧縮し、前
記止モードの場合にはばね部をほぼ非圧縮状態とする圧
縮量可変手段を設けたことを特徴とする容器の内容液吐
出装置。1. A non-return valve mechanism for mounting a device main body in an opening of a container to suck and discharge a content liquid, allowing only a flow of the content liquid in a discharge direction and preventing a backflow, A mode switching valve mechanism that is disposed downstream of the stop valve mechanism and that can be switched between a stop mode in which the content liquid passing through the check valve mechanism is prevented from flowing out and a discharge mode in which the content liquid is discharged to the outside. The check valve mechanism includes a valve seat, a valve body that can be brought into contact with and separated from the valve seat, and a spring part that presses the valve body against the valve seat. In the apparatus for discharging a liquid content of a container, a compression amount varying means for compressing the spring portion by a predetermined amount in the discharge mode and providing the spring portion in a substantially non-compressed state in the stop mode is provided. A liquid discharge device for the contents of the container.
り換え動作により、ばね部の弁体部とは反対側の端部位
置を、吐出モードの場合には自由長の場合のばね部の端
部位置よりも所定の圧縮代分だけ弁座に近付け、止モー
ドの場合にはほぼ自由長の場合のばね部の端部位置に位
置させるばね座によって構成されることを特徴とする請
求項1に記載の容器の内容液吐出装置。The compression amount varying means changes the end position of the spring portion on the side opposite to the valve body by the switching operation of the mode switching valve mechanism, and sets the end of the spring portion in the free length in the discharge mode. A spring seat is provided which is closer to the valve seat by a predetermined compression allowance than the end position, and which is located at the end position of the spring portion when the stop mode is substantially free length in the stop mode. 2. The device for discharging a content liquid of a container according to 1.
よってモードを切り換える構成で、ばね座は操作部材の
回転位置によって弁座側への突出高さが変化するカムと
なっている請求項2に記載の容器の内容液吐出装置。3. A mode switching valve mechanism wherein the mode is switched by rotating the operating member, and the spring seat is a cam whose height protruding toward the valve seat varies depending on the rotational position of the operating member. A device for discharging a liquid content of a container according to claim 1.
されている請求項1,2または3に記載の容器の内容液
吐出装置。4. The apparatus according to claim 1, wherein the spring portion is made of resin and is formed integrally with the valve body portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27542396A JP3707156B2 (en) | 1996-09-26 | 1996-09-26 | Container content liquid discharge device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27542396A JP3707156B2 (en) | 1996-09-26 | 1996-09-26 | Container content liquid discharge device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1099744A true JPH1099744A (en) | 1998-04-21 |
JP3707156B2 JP3707156B2 (en) | 2005-10-19 |
Family
ID=17555313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27542396A Expired - Fee Related JP3707156B2 (en) | 1996-09-26 | 1996-09-26 | Container content liquid discharge device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3707156B2 (en) |
-
1996
- 1996-09-26 JP JP27542396A patent/JP3707156B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP3707156B2 (en) | 2005-10-19 |
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