JP3949355B2 - Cylinder for vertical pump - Google Patents

Cylinder for vertical pump Download PDF

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Publication number
JP3949355B2
JP3949355B2 JP2000199472A JP2000199472A JP3949355B2 JP 3949355 B2 JP3949355 B2 JP 3949355B2 JP 2000199472 A JP2000199472 A JP 2000199472A JP 2000199472 A JP2000199472 A JP 2000199472A JP 3949355 B2 JP3949355 B2 JP 3949355B2
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Japan
Prior art keywords
cylinder
outward flange
outer cylinder
twenty
reinforcing
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JP2002011388A (en
Inventor
治夫 土田
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • 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
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1056—Actuation means comprising rotatable or articulated levers
    • B05B11/1057—Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user

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Description

【０００１】
【発明の属する技術分野】
本発明は縦形ポンプ用のシリンダに関する。
【０００２】
【従来の技術】
例えば実開平10-34033号が示すように、縦形ポンプ式液体噴出器の合成樹脂製シリンダは、胴部の上方に外向きフランジを付設して該外向きフランジ上面へ容器体口頸部螺合用のキャップ状部材上端に付設した内向きフランジを係合させると共に、シリンダ上部に、環状頂部の内外から内外二重筒を垂下させたステム抜止め筒を、その内筒はシリンダの上部内面へ、外筒はシリンダ上部外面へそれぞれ嵌合させて設けている。
【０００３】
【発明が解決しようとする課題】
上記シリンダ内からは、下端に付設した筒状ピストンをシリンダ内へ嵌合させてその筒状ピストンから起立させたステムをシリンダ上方へ立設させ、該ステム上端にノズル付きの押下げヘッドを嵌合させるが、上記シリンダの下部内へ吸込み弁を設けて押下げヘッドを介してピストン付きステムを押下げすることでのシリンダ内液体の高圧化で、該高圧液体をステム途中等に設けた吐出弁を介してノズルから噴出するから、上記シリンダは或る程度の耐圧性が要求される。
【０００４】
このためシリンダを或る程度厚肉とすることでその耐圧性を高めるが、合成樹脂製シリンダの場合は厚肉化によってシリンダ内面にいわゆるヒケが生じてその凹凸によりシリンダ内面と筒状ピストン外面とのシール性が損なわれ易く、又シリンダの厚肉化によって冷却に時間を要する等の理由で成形サイクルが低下するものであった。
【０００５】
本発明は上記シリンダ外面へ合成樹脂製補強外筒を嵌合させることで、シリンダ胴部を肉薄としても、シリンダ胴部と補強外筒とでシリンダが必要とする耐圧性等の強度を保つことが可能とすることを主たる目的とする。併せてシリンダに対するキャップ状部材およびステム抜止め筒の取付けが便利であるよう設けた。
【０００６】
【課題を解決するための手段】
第１の手段として縦形ポンプ用の合成樹脂シリンダにおいて、
シリンダ胴部２の外面へ、該胴部外径とほぼ同一内径で中空筒状の合成樹脂製補強外筒11を緊密に嵌合させた。
【０００７】
第２の手段として上記第１の手段を有すると共に補強外筒11の上部を除く部分内面へ縦溝13を補強外筒下端面へ開溝させて縦設し、上記補強外筒上部をシリンダ胴部の上部外面へ水密に嵌合させると共に、シリンダ胴部に穿設された透孔と上記縦溝13とを連通させた。
【０００８】
第３の手段として、上記第１又は第２の手段を有すると共に上記補強外筒11に、上記シリンダ装着用の容器体口頸部上端面への係合用第１外向きフランジ12を付設した。
【０００９】
第４の手段として、上記第１、第２又は第３の手段を有すると共にシリンダ上端部を下向き段部３を介して大外径部４とすると共に、下向き段部３下面へ第１外向きフランジ12付き補強外筒11の上端面を係合させ、
又環状頂部22の内外両周縁から内外両筒23,24 を垂下すると共に、外筒24下端から第２外向きフランジ25を介して更に上記シリンダ装着用容器体の口頸部外面へ螺合させるキャップ状筒26を垂下する、ステム抜止め兼用のキャップ状部材21を設けて、上記内筒23をシリンダ１の上部内面へ、かつ外筒24を補強外筒11外面へ、それぞれ嵌合させ、更に上記第１外向きフランジ12上面へ第２外向きフランジ25を重ねた。
【００１０】
第５の手段として、上記第１、第２又は第３の手段を有すると共にシリンダ上部を下向き段部３を介して大外径部４とすると共に下向き段部３下面へ、第１外向きフランジ12付きの補強外筒11の上端面を係合させ、
又環状頂部22の内外両周縁から内外両筒を垂下するステム抜止め筒21a を設けて、該筒の内筒23をシリンダ１の上部内面へ、かつ外筒24を第１外向きフランジ12上方の補強外筒部分外面へ、それぞれ嵌合させ、
更に上記外筒24下端に第２外向きフランジ25を付設して、該第２外向きフランジ25と上記第１外向きフランジ12との間隙内へ、容器体口頸部外面への螺合用キャップ状部材21b が周壁上端に有する内向きフランジ32を、回動可能に嵌合させた。
【００１１】
第６の手段として、上記第１、第２、又は第３の手段を有すると共にシリンダ上部を下向き段部３を介して大外径部４とすると共に下向き段部３下面へ、上記補強外筒11上端に付設した第１外向きフランジ12の内周部上面を係合させ、
又環状頂部22の内外から内外両筒23,24 を垂下するステム抜止め筒21a を設けて、該筒の内筒23をシリンダ１の上部内面へ、かつ外筒24を上記大径筒部４の外面へ、それぞれ嵌合させ、
更に上記第１外向きフランジ12と上記外筒24の下面ないし該外筒に付設した第２外向きフランジ25との間隙内へ、容器体口頸部外面への螺合用キャップ状部材21b が周壁上端に有する内向きフランジ32を、回動可能に嵌合させた。
【００１２】
【発明の実施の形態】
まず図１が示す第１実施形態について説明すると、１は合成樹脂製のシリンダでシリンダ胴部２の下部は小径部に、かつ中間部および上部を大径部とし、更に胴部２の上端は下向き段部３を介して大外径部４としている。該シリンダは底部内に吸込み弁５を有し、かつその吸込み弁孔に連通させてシリンダ下端からパイプ嵌合筒６を垂下し、該嵌合筒内へ吸上げパイプ７上端部を嵌合させている。尚シリンダ胴部の上部には外気吸入孔８を穿設している。
【００１３】
11は合成樹脂製の補強外筒で、上記シリンダ胴部２の外面へ嵌合させている。該補強外筒は胴部２外径とほぼ同内径とし、筒上端を上記下向き段部３下面へ係合させ、又下部外面に第１外向きフランジ12を付設している。筒上端部はシリンダ胴部の上部外面へ水密に嵌合させており、かつ該上端部よりも下方筒部分内面には縦溝13を筒下端面まで開溝させて縦設し、該縦溝を既述シリンダの外気吸入孔８に連通させている。尚図示例では筒下部をシリンダ胴部外径よりも僅かに大内径としている。
【００１４】
21は上記シリンダを保持させる、ステム抜止め兼用キャップ状部材であり、環状頂部22の内外両周縁から内外両筒23,24 を垂下し、その外筒下端からは第２外向きフランジ25を介して容器体口頸部外面へ螺合させるキャップ状筒26を垂下し、内筒23はシリンダ１の上部内面へ嵌合させると共に外筒24を補強外筒11の外面へ嵌合させ、第２外向きフランジ25は第１外向きフランジ12上面へ載置させている。図示例にあっては後述支持板27との連結部分を長くするために環状頂部22を下外方へ下降するテーパ状とするが、支持板を設けない場合は図３のようにほぼ水平とする。
【００１５】
該ステム抜止め兼用キャップ状部材21は、図示のようにトリガー式ポンプ用の部材として形成してもよく、又通常の縦形ポンプ用部材としてもよい。
【００１６】
トリガー式ポンプ用部材とする場合は、図示のように外筒24および第２外向きフランジ25の後部から上後方へ支持板27を突出しておき、又逆Ｌ字形状に設けた吐出管部材28の垂直部が形成するステム29下端の筒状ピストン30をシリンダ１内へスプリングにより上方付勢させて嵌合させて水平状部が形成する射出筒31を前方へ突出させて設け、更に逆Ｌ字状に設けたトリガー部材41の水平状部を左右二重板としてその二重水平状板42,42 間に上記射出筒31および支持板27上部を嵌合させて二重水平状板後部と支持板27上部とを枢着43させ、ステム29上部の左右両面から突設したピン44,44 を左右水平状板42,42 に枢止させて、二重水平状板の前部下面から下前方へトリガー45を突出する。
【００１７】
縦形ポンプ用部材とする場合は、上記支持板27を設けず、又図３が示すようにステム29上端にノズル付きの押下げヘッド51を嵌合させればよい。
【００１８】
上記ステム抜止め兼用キャップ状部材は、第２実施形態を示す図２、又第３実施形態を示す図３のように、ステム抜止め筒21a とキャップ状部材21b との二部材で形成することも出来る。
【００１９】
図２のステム抜止め筒21a は既述抜止め兼用キャップ状部材21が有するキャップ状筒26を除去した形状であり、又キャップ状部材21b は上記切離されたキャップ状筒上端に内向きフランジ32を付設した形状である。補強外筒11が有する第１外向きフランジ12とステム抜止め筒21a が有する第２外向きフランジ25との間には間隙を設けて該間隙内へキャップ状部材21b が有する内向きフランジ32を回動自在に嵌合させている。その他部分は第１実施形態の場合と同じであり、よって同一符号を付することで説明を省略する。
【００２０】
図３のステム抜止め筒21a は、下向き段部３上方のシリンダ上部をやや長く設けて、その下向き段部上方のシリンダ部分外面へ環状頂部22から垂下させた外筒24を上方抜出し不能に嵌合させており、又キャップ状部材21b は図２の場合と同様にキャップ状筒上端に内向きフランジ32を付設した形状としている。該キャップ状部材は、補強外筒11上端に付設した第１外向きフランジ12上へ内向きフランジ32を載置させ、又その内向きフランジ32の内周部上面へ上記ステム抜止め筒21a の外筒24下端面をキャップ状部材の回動が可能に係合させている。尚図３のステム抜止め筒21a は環状頂部22の頂板を外方へ延長させて第２外向きフランジ25とし、かつその延長部外周から短筒33を垂下させている。
【００２１】
図１と図２実施形態の場合は、トリガー引寄せ操作でシリンダ内液体が高圧化してステム29、射出筒31を通って該射出筒前端に嵌合させたノズルキャップ46が有するノズル孔47から液体が噴出し、又図３実施形態の場合は押下げヘッド51押下げによりステム29およびノズル52内を通って液体を噴出する。
【００２２】
【発明の効果】
本発明は、シリンダ胴部を補強外筒11が補強するからシリンダ胴部を肉薄としても差支えなく、又シリンダ胴部を肉薄とすることが出来るから、その胴部を厚肉とした場合のようにその胴部にヒケによる凹凸が生ずることなく、よって筒状ピストンとのシール性が低下しない。
【００２３】
また、本発明は、シリンダに穿設した外気吸入孔８等の透孔を容器体内へ連通させることが出来る。
【００２４】
さらに、本発明は、口頸部の径を異にする複数容器体に対してそれぞれの容器体口頸部に対応する径の第１外向きフランジを有する補強外筒を嵌合させたシリンダを装着させることが出来、よって補強外筒を変えるだけで同一大きさのシリンダを口頸部内径を異にする複数容器体に用いることが出来る便利があると共に、補強外筒付きシリンダを容器体へ装着させることが容易となる。
【図面の簡単な説明】
【図１】 本発明シリンダを有する液体噴出器の縦断面図である。
【図２】 実施形態を異にして示す、上記シリンダ付き液体噴出器の縦断面図である。
【図３】 更に実施形態を異にして示す、上記シリンダ付き液体噴出器の縦断面図である。
【符号の説明】
１ …シリンダ ３ …下向き段部
11 …補強外筒 21 …ステム抜止め兼用キャップ状部材
21a …ステム抜止め筒 21b …キャップ状部材
22 …環状頂部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cylinder for a vertical pump.
[0002]
[Prior art]
For example, as shown in Japanese Utility Model Laid-Open No. 10-34033, the synthetic resin cylinder of the vertical pump type liquid ejector is equipped with an outward flange above the trunk and is used for screwing the container body neck into the upper surface of the outward flange. The inner cylinder attached to the upper end of the cap-like member is engaged, and a stem retaining cylinder in which the inner and outer double cylinders are suspended from the inside and outside of the annular top portion is attached to the upper part of the cylinder. The outer cylinder is provided to be fitted to the outer surface of the upper part of the cylinder.
[0003]
[Problems to be solved by the invention]
From the inside of the cylinder, a cylindrical piston attached to the lower end is fitted into the cylinder, a stem raised from the cylindrical piston is set up above the cylinder, and a push-down head with a nozzle is fitted to the upper end of the stem. However, when the pressure in the cylinder is increased by providing a suction valve in the lower part of the cylinder and pushing down the stem with piston via the push-down head, the high-pressure liquid is discharged in the middle of the stem. The cylinder is required to have a certain degree of pressure resistance because it is ejected from the nozzle through the valve.
[0004]
For this reason, the pressure resistance of the cylinder is increased by increasing the thickness of the cylinder to some extent, but in the case of a synthetic resin cylinder, so-called sink marks are generated on the inner surface of the cylinder due to the increase in thickness. The sealing performance is easily impaired, and the molding cycle is lowered due to the time required for cooling due to the thickening of the cylinder.
[0005]
The present invention keeps the strength such as pressure resistance required by the cylinder between the cylinder body and the reinforcing outer cylinder even if the cylinder body is thin by fitting the synthetic resin reinforcing outer cylinder to the cylinder outer surface. The main purpose is to make this possible. In addition, the cap-shaped member and the stem retaining cylinder are attached to the cylinder for convenience.
[0006]
[Means for Solving the Problems]
In a synthetic resin cylinder for a vertical pump as a first means,
A hollow cylindrical synthetic resin reinforcing outer cylinder 11 having an inner diameter substantially the same as the outer diameter of the cylinder section was closely fitted to the outer surface of the cylinder body section 2.
[0007]
As a second means, the first means is provided, and a vertical groove 13 is formed in a partial inner surface excluding the upper portion of the reinforcing outer cylinder 11 so as to open the lower end surface of the reinforcing outer cylinder, and the upper portion of the reinforcing outer cylinder is formed in the cylinder body. It was fitted in a watertight manner to the upper outer surface of the part, and the through hole formed in the cylinder body and the longitudinal groove 13 were communicated.
[0008]
As a third means, a first outward flange 12 for engagement with the upper end surface of the container body neck for attaching the cylinder is attached to the reinforcing outer cylinder 11 while having the first or second means.
[0009]
As a fourth means, the first, second, or third means is provided, the upper end of the cylinder is set to the large outer diameter portion 4 through the downward step portion 3, and the first outward direction to the lower surface of the downward step portion 3 is provided. Engage the upper end surface of the reinforcing outer cylinder 11 with the flange 12,
The inner and outer cylinders 23 and 24 are suspended from the inner and outer peripheral edges of the annular top portion 22 and are further screwed from the lower end of the outer cylinder 24 through the second outward flange 25 to the outer surface of the mouth and neck portion of the cylinder mounting container body. A cap-shaped member 21 that also serves as a stem retaining part is provided to hang down the cap-shaped cylinder 26, and the inner cylinder 23 is fitted to the upper inner surface of the cylinder 1 and the outer cylinder 24 is fitted to the outer surface of the reinforcing outer cylinder 11, Further, a second outward flange 25 was placed on the upper surface of the first outward flange 12.
[0010]
As a fifth means, the first, second, or third means is provided, and the cylinder upper portion is formed as a large outer diameter portion 4 through the downward stepped portion 3, and the lower surface of the downward stepped portion 3 is lowered to the first outward flange. Engage the upper end surface of the reinforcing outer cylinder 11 with 12
Also, a stem retaining cylinder 21a is provided to suspend both the inner and outer cylinders from the inner and outer peripheral edges of the annular top 22, and the inner cylinder 23 of the cylinder is placed on the upper inner surface of the cylinder 1 and the outer cylinder 24 is placed above the first outward flange 12 To the outer surface of the reinforced outer cylinder part of
Further, a second outward flange 25 is attached to the lower end of the outer cylinder 24, and a cap for screwing into the outer surface of the neck of the container body mouth into the gap between the second outward flange 25 and the first outward flange 12 is provided. An inward flange 32 that the shaped member 21b has at the upper end of the peripheral wall is fitted so as to be rotatable.
[0011]
As a sixth means, the reinforcing outer cylinder has the first, second, or third means, and the upper portion of the cylinder is formed as a large outer diameter portion 4 through the downward step portion 3 and the lower surface of the downward step portion 3 is lowered. 11 Engage the upper surface of the inner periphery of the first outward flange 12 attached to the upper end,
Further, a stem retaining cylinder 21a is provided to suspend both the inner and outer cylinders 23, 24 from the inside and outside of the annular top 22, and the inner cylinder 23 of the cylinder is placed on the upper inner surface of the cylinder 1 and the outer cylinder 24 is placed on the large diameter cylinder 4 To the outer surface of each,
Further, a cap-like member 21b for screwing into the outer surface of the neck of the container body mouth is inserted into the gap between the first outward flange 12 and the lower surface of the outer cylinder 24 or the second outward flange 25 attached to the outer cylinder. An inward flange 32 at the upper end was fitted so as to be rotatable.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
First, the first embodiment shown in FIG. 1 will be described. 1 is a cylinder made of synthetic resin, the lower part of the cylinder body 2 is a small diameter part, the middle part and the upper part are large diameter parts, and the upper end of the body part 2 is A large outer diameter portion 4 is formed via a downward stepped portion 3. The cylinder has a suction valve 5 in the bottom, communicates with the suction valve hole, hangs a pipe fitting cylinder 6 from the lower end of the cylinder, and fits the upper end of the suction pipe 7 into the fitting cylinder. ing. An outside air suction hole 8 is formed in the upper part of the cylinder body.
[0013]
11 is a reinforced outer cylinder made of synthetic resin and is fitted to the outer surface of the cylinder body 2. The reinforcing outer cylinder has an inner diameter substantially the same as the outer diameter of the body part 2, the upper end of the cylinder is engaged with the lower surface of the downward stepped part 3, and a first outward flange 12 is provided on the lower outer surface. The upper end of the cylinder is water-tightly fitted to the upper outer surface of the cylinder body, and the vertical groove 13 is opened vertically to the lower end of the cylinder on the inner surface of the cylinder part below the upper end. Is communicated with the outside air suction hole 8 of the cylinder described above. In the illustrated example, the lower part of the cylinder has a slightly larger inner diameter than the outer diameter of the cylinder body.
[0014]
Reference numeral 21 denotes a stem retaining and cap-like member for holding the cylinder. The inner and outer cylinders 23 and 24 are suspended from both the inner and outer peripheral edges of the annular top 22 and the second outer flange 25 is interposed from the lower end of the outer cylinder. Then, a cap-shaped cylinder 26 to be screwed onto the outer surface of the container body neck is suspended, the inner cylinder 23 is fitted to the upper inner surface of the cylinder 1, and the outer cylinder 24 is fitted to the outer surface of the reinforcing outer cylinder 11. The outward flange 25 is placed on the upper surface of the first outward flange 12. In the illustrated example, in order to lengthen the connecting portion with the support plate 27 which will be described later, the annular top portion 22 is tapered downward, but when the support plate is not provided, it is almost horizontal as shown in FIG. To do.
[0015]
The stem retaining / cap-shaped member 21 may be formed as a member for a trigger type pump as shown, or may be a normal vertical pump member.
[0016]
In the case of a trigger type pump member, as shown in the drawing, a support plate 27 protrudes upward and rearward from the rear part of the outer cylinder 24 and the second outward flange 25, and a discharge pipe member 28 provided in an inverted L shape. The cylindrical piston 30 at the lower end of the stem 29 formed by the vertical part of the cylinder is urged upward into the cylinder 1 by a spring so as to be fitted, and the injection cylinder 31 formed by the horizontal part is provided to project forward, and further the reverse L The horizontal portion of the trigger member 41 provided in a letter shape is used as a left and right double plate, and the upper part of the injection cylinder 31 and the support plate 27 is fitted between the double horizontal plates 42, 42, and the rear portion of the double horizontal plate The upper part of the support plate 27 is pivotally attached 43, and the pins 44 and 44 projecting from the left and right sides of the upper part of the stem 29 are pivoted to the left and right horizontal plates 42 and 42, and are lowered from the lower surface of the front part of the double horizontal plate. Project the trigger 45 forward.
[0017]
In the case of a vertical pump member, the support plate 27 is not provided, and a pressing head 51 with a nozzle may be fitted to the upper end of the stem 29 as shown in FIG.
[0018]
As shown in FIG. 2 showing the second embodiment and FIG. 3 showing the third embodiment, the stem retaining / cap-shaped member is formed of two members, a stem retaining cylinder 21a and a cap-shaped member 21b. You can also.
[0019]
The stem retaining cylinder 21a shown in FIG. 2 has a shape obtained by removing the cap-shaped cylinder 26 included in the above-described retaining / combining cap-shaped member 21, and the cap-shaped member 21b has an inward flange at the upper end of the separated cap-shaped cylinder. The shape with 32 attached. A gap is provided between the first outward flange 12 of the reinforcing outer cylinder 11 and the second outward flange 25 of the stem retaining cylinder 21a, and an inward flange 32 of the cap-shaped member 21b is provided in the gap. It is fitted so that it can rotate freely. Other parts are the same as those in the first embodiment, and therefore, the same reference numerals are given and description thereof is omitted.
[0020]
The stem retaining cylinder 21a shown in FIG. 3 is provided with a slightly longer upper part of the cylinder above the downward step 3 so that the outer cylinder 24 suspended from the annular top 22 on the outer surface of the cylinder above the downward step cannot be pulled out. The cap-shaped member 21b has a shape in which an inward flange 32 is attached to the upper end of the cap-shaped tube as in the case of FIG. The cap-shaped member places an inward flange 32 on a first outward flange 12 attached to the upper end of the reinforcing outer cylinder 11, and the stem retaining cylinder 21a is placed on the upper surface of the inner peripheral portion of the inward flange 32. The lower end surface of the outer cylinder 24 is engaged so that the cap-shaped member can be rotated. The stem retaining cylinder 21a shown in FIG. 3 extends the top plate of the annular top 22 outward to form a second outward flange 25, and the short cylinder 33 is suspended from the outer periphery of the extension.
[0021]
In the case of FIG. 1 and FIG. 2 embodiment, the pressure in the cylinder is increased by the trigger pulling operation, and the nozzle cap 47 fitted through the stem 29 and the injection cylinder 31 to the front end of the injection cylinder has a nozzle hole 47. Liquid is ejected, and in the case of FIG. 3, the liquid is ejected through the stem 29 and the nozzle 52 by pressing the pressing head 51.
[0022]
【The invention's effect】
In the present invention , since the reinforcing outer cylinder 11 reinforces the cylinder body, there is no problem even if the cylinder body is thin, and the cylinder body can be thin, so that the body is thick. In addition, unevenness due to sink marks does not occur in the body portion, and therefore the sealing performance with the cylindrical piston does not deteriorate.
[0023]
Further, according to the present invention, through holes such as the outside air suction hole 8 formed in the cylinder can be communicated with the inside of the container.
[0024]
Furthermore, the present invention provides a cylinder in which a reinforcing outer cylinder having a first outward flange having a diameter corresponding to each container body neck and neck is fitted to a plurality of container bodies having different diameters of the mouth neck. Therefore, it is possible to use the same size cylinder for multiple container bodies with different neck diameters by simply changing the reinforced outer cylinder. It becomes easy to install.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a liquid ejector having a cylinder of the present invention.
FIG. 2 is a longitudinal sectional view of the liquid ejector with a cylinder, showing different embodiments.
FIG. 3 is a longitudinal sectional view of the liquid ejector with a cylinder, showing different embodiments.
[Explanation of symbols]
1 ... Cylinder 3 ... Downward step
11… Reinforcing outer tube 21… Stem retaining cap and cap-shaped member
21a ... Stem retaining cylinder 21b ... Cap-shaped member
22 ... Annular top

Claims (3)

縦形ポンプ用の合成樹脂シリンダにおいて、
シリンダ胴部２の上部外面へ、該胴部外径とほぼ同一内径で下端面開口の合成樹脂製補強外筒11上端部を水密に嵌合させ、
該補強外筒 11 の上端部を除く部分内面へ縦溝 13 を補強外筒下端面へ開溝させて縦設し、該縦溝とシリンダ胴部に穿設された透孔とを連通させ、
上記補強外筒 11 に、上記シリンダ装着用の容器体口頸部上端面への係合用第１外向きフランジ 12 を付設し、
シリンダ上端部を下向き段部３を介して大外径部４とすると共に、下向き段部３下面へ第１外向きフランジ 12 付き補強外筒 11 の上端面を係合させ、又環状頂部 22 の内外両周縁から内外両筒 23,24 を垂下すると共に、外筒 24 下端から第２外向きフランジ 25 を介して更に上記シリンダ装着用容器体の口頸部外面へ螺合させるキャップ状筒 26 を垂下する、ステム抜止め兼用のキャップ状部材 21 を設けて、上記内筒 23 をシリンダ１の上部内面へ、かつ外筒 24 を補強外筒 11 外面へ、それぞれ嵌合させ、更に上記第１外向きフランジ 12 上面へ第２外向きフランジ 25 を重ねたことを特徴とする縦形ポンプ用シリンダ。 For synthetic resin cylinders for vertical pumps,
The upper end of the cylinder body 2 is water-tightly fitted with the upper end of the synthetic resin reinforcing outer cylinder 11 having the same inner diameter as the outer diameter of the cylinder and the opening of the lower end.
The vertical groove 13 is opened to the lower end surface of the reinforcing outer cylinder on the partial inner surface excluding the upper end of the reinforcing outer cylinder 11 , and the vertical groove communicates with the through hole formed in the cylinder body.
The reinforcing outer cylinder 11 is provided with a first outward flange 12 for engagement with the upper end surface of the container neck for attaching the cylinder ,
The cylinder upper portion with a large outer diameter portion 4 via a downward stepped portion 3, to the downwardly stepped portion 3 lower surface of the first outward flange 12 with a reinforcing outer cylinder 11 the upper end surface engaged with and also the annular apex 22 A cap-shaped cylinder 26 is provided which hangs both the inner and outer cylinders 23 and 24 from both inner and outer peripheral edges and is further screwed from the lower end of the outer cylinder 24 through the second outward flange 25 to the outer surface of the mouth and neck portion of the cylinder mounting container body. A cap-shaped member 21 that also serves as a stem stopper is provided to hang down, and the inner cylinder 23 is fitted to the upper inner surface of the cylinder 1 and the outer cylinder 24 is fitted to the outer surface of the reinforcing outer cylinder 11 , respectively. A cylinder for a vertical pump, wherein a second outward flange 25 is superimposed on the upper surface of the facing flange 12 . 縦形ポンプ用の合成樹脂シリンダにおいて、In synthetic resin cylinders for vertical pumps,
シリンダ胴部２の上部外面へ、該胴部外径とほぼ同一内径で下端面開口の合成樹脂製補強外筒Synthetic resin reinforced outer cylinder with an inner diameter substantially the same as the outer diameter of the upper portion of the cylinder body 2 and an opening at the lower end surface. 1111 上端部を水密に嵌合させ、Fit the top end in a watertight manner,
該補強外筒Reinforcing outer cylinder 1111 の上端部を除く部分内面へ縦溝Vertical groove on the inner surface of the part excluding the upper end of 1313 を補強外筒下端面へ開溝させて縦設し、該縦溝とシリンダ胴部に穿設された透孔とを連通させ、Is opened vertically to the lower end surface of the reinforcing outer cylinder, and the vertical groove communicates with the through hole formed in the cylinder body.
上記補強外筒Reinforced outer cylinder 1111 に、上記シリンダ装着用の容器体口頸部上端面への係合用第１外向きフランジAnd a first outward flange for engagement with the upper end surface of the container neck for mounting the cylinder 1212 を付設し、Is attached,
シリンダ上部を下向き段部３を介して大外径部４とすると共に下向き段部３下面へ、第１外向きフランジThe cylinder upper part is made into the large outer diameter part 4 via the downward step part 3, and the first outward flange is formed on the lower surface of the downward step part 3. 1212 付きの補強外筒Reinforced outer cylinder with 1111 の上端面を係合させ、又環状頂部Engage the upper end surface of the 22twenty two の内外両周縁から内外両筒を垂下するステム抜止め筒Stem retaining cylinder that hangs both the inner and outer cylinders from the inner and outer peripheral edges 21a21a を設けて、該筒の内筒An inner cylinder of the cylinder 23twenty three をシリンダ１の上部内面へ、かつ外筒To the upper inner surface of the cylinder 1 and the outer cylinder 24twenty four を第１外向きフランジThe first outward flange 1212 上方の補強外筒部分外面へ、それぞれ嵌合させ、更に上記外筒The outer cylinder part is fitted to the outer surface of the upper reinforcing outer cylinder part, and the outer cylinder 24twenty four 下端に第２外向きフランジSecond outward flange at the bottom 25twenty five を付設して、該第２外向きフランジAnd the second outward flange 25twenty five と上記第１外向きフランジAnd the first outward flange 1212 との間隙内へ、容器体口頸部外面への螺合用キャップ状部材Cap-shaped member for screwing into the outer surface of the neck of the container body 21b 21b が周壁上端に有する内向きフランジInward flange on the upper end of the peripheral wall 3232 を、回動可能に嵌合させたことを特徴とする縦形ポンプ用シリンダ。Is a cylinder for a vertical pump, wherein the cylinder is rotatably fitted. 縦形ポンプ用の合成樹脂シリンダにおいて、In synthetic resin cylinders for vertical pumps,
シリンダ胴部２の上部外面へ、該胴部外径とほぼ同一内径で下端面開口の合成樹脂製補強外筒Synthetic resin reinforced outer cylinder with an inner diameter substantially the same as the outer diameter of the upper portion of the cylinder body 2 and an opening at the lower end surface. 1111 上端部を水密に嵌合させ、Fit the top end in a watertight manner,
該補強外筒Reinforcing outer cylinder 1111 の上端部を除く部分内面へ縦溝Vertical groove on the inner surface of the part excluding the upper end of 1313 を補強外筒下端面へ開溝させて縦設し、該縦溝とシリンダ胴部に穿設された透孔とを連通させ、Is opened vertically to the lower end surface of the reinforcing outer cylinder, and the vertical groove communicates with the through hole formed in the cylinder body.
上記補強外筒Reinforced outer cylinder 1111 に、上記シリンダ装着用の容器体口頸部上端面への係合用第１外向きフランジAnd a first outward flange for engagement with the upper end surface of the container neck for mounting the cylinder 1212 を付設し、Is attached,
シリンダ上部を下向き段部３を介して大外径部４とすると共に下向き段部３下面へ、上記補強外筒The cylinder upper portion is formed into a large outer diameter portion 4 via a downward stepped portion 3, and the reinforcing outer cylinder is moved to the lower surface of the downward stepped portion 3 1111 上端に付設した第１外向きフランジFirst outward flange attached to the upper end 1212 の内周部上面を係合させ、又環状頂部Engage the upper surface of the inner periphery of the 22twenty two の内外から内外両筒Both inside and outside cylinders 23,24 23,24 を垂下するステム抜止め筒Stem retaining cylinder to hang down 21a 21a を設けて、該筒の内筒An inner cylinder of the cylinder 23twenty three をシリンダ１の上部内面へ、かつ外筒To the upper inner surface of the cylinder 1 and the outer cylinder 24twenty four を上記大径筒部４の外面へ、それぞれ嵌合させ、更に上記第１外向きフランジAre respectively fitted to the outer surface of the large-diameter cylindrical portion 4, and further the first outward flange 1212 と上記外筒And the above outer cylinder 24twenty four の下面ないし該外筒に付設した第２外向きフランジThe second outward flange attached to the lower surface of the casing or the outer cylinder 25twenty five との間隙内へ、容器体口頸部外面への螺合用キャップ状部材Cap-shaped member for screwing into the outer surface of the neck of the container body 21b 21b が周壁上端に有する内向きフランジInward flange on the upper end of the peripheral wall 3232 を、回動可能に嵌合させたことを特徴とする縦形ポンプ用シリンダ。Is a cylinder for a vertical pump, wherein the cylinder is rotatably fitted.
JP2000199472A 2000-06-30 2000-06-30 Cylinder for vertical pump Expired - Fee Related JP3949355B2 (en)

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