JP3765068B2 - Manual pump - Google Patents

Manual pump Download PDF

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Publication number
JP3765068B2
JP3765068B2 JP22135497A JP22135497A JP3765068B2 JP 3765068 B2 JP3765068 B2 JP 3765068B2 JP 22135497 A JP22135497 A JP 22135497A JP 22135497 A JP22135497 A JP 22135497A JP 3765068 B2 JP3765068 B2 JP 3765068B2
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JP
Japan
Prior art keywords
cylinder
main body
container
operation lever
spring
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
JP22135497A
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Japanese (ja)
Other versions
JPH1157547A (en
Inventor
治夫 土田
弘幸 中村
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.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho 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 Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Priority to JP22135497A priority Critical patent/JP3765068B2/en
Publication of JPH1157547A publication Critical patent/JPH1157547A/en
Application granted granted Critical
Publication of JP3765068B2 publication Critical patent/JP3765068B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B05B11/1009Piston pumps actuated by a lever
    • B05B11/1011Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • 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
    • B05B11/1042Components or details
    • B05B11/1073Springs
    • B05B11/1077Springs characterised by a particular shape or material

Description

【0001】
【発明の属する技術分野】
本発明は、容器の口部に組付けられ、レバー操作により容器の内容液を吸い上げ、注出する手動ポンプに関するものである。
【0002】
【従来の技術】
容器内の洗剤、殺虫剤等を注出あるいは噴霧するこの種の手動ポンプは、容器内部に連通したシリンダと、操作レバーに枢止連結され、このシリンダ内を進退するピストンと、シリンダ内に、このシリンダとピストンとの間に介装され、ピストンを介して操作レバーを復帰方向に弾発するコイルばねとを備えており、操作レバーを把握操作することにより、ピストンを後退させ、シリンダ内の内容液を圧送して注出口から注出し、操作レバーを解放操作することにより、コイルばねを介してピストンを前進させ、シリンダ内の負圧により、容器内の内容液をシリンダ内に吸い上げるように構成されている。
【0003】
【発明が解決しようとする課題】
しかしながら、上記した従来技術にあっては、操作レバーの復帰用弾発手段として、前記のようにシリンダ内の小さいスペースに収納されたコイルばねを使用しているので、その弾性機能部分としてのストロークが短く、そのため、コイルばねを圧縮させる操作レバーの把握操作に比較的大きな力を必要とし、特に把握操作の後半ほど強い力が必要になるため、操作性が劣るという問題があった。
【0004】
また、コイルばねはシリンダ内に収納され、内容液と接触するので、金属製のコイルばねを使用した場合には、耐内容物性の問題から内容液の種類が制約されるという難点があり、合成樹脂製のコイルばねを使用した場合には、耐内容物性の問題は無くなるが、弾力不足および早期弾性劣化により、操作性が悪くなり易いという問題があった。
【0005】
さらに、シリンダ外に金属製のコイルばねを装着して、耐内容物性を高めるようにしたものもあるが、分別回収の手間がかかると云う問題があった。
【0006】
そこで、本発明は、上記した従来技術における問題点を解消すべく創案されたもので、手動ポンプにおける操作レバー復帰用ばねの弾性機能部分を長くすることを技術的課題とし、もって操作レバーの操作性を向上させ、このばねによる内容液の制約を無くし、さらに廃棄処理時の分別回収の必要を無くすことができるようにすることを目的とする。
【0007】
【課題を解決するための手段】
上記技術的課題を解決する本発明の手段は、
容器口部に組付けられ、この容器内に連通した流路を有すると共に、この流路に連通したシリンダを一体設した本体を有すること、
一端が本体に枢着された操作レバーを有すること、
一端が操作レバーに枢止連結され、他端部分が本体のシリンダ内に進退可能に収容されたピストンを有すること、
一端部分が本体の両側面に固定され、他端の押圧面が操作レバーの、両側端にガイド突片を立設した受圧面に摺動可能に弾接して、操作レバーを復帰方向に弾発する一対の細長U字形状のばねを有すること、
全構成部分を合成樹脂製とすること、
にある。
【0008】
操作レバーをばねの弾発力に抗して把握操作すると、ピストンが後退してシリンダ内の内容液を圧送し、本体内の流路を経由して注出され、また、操作レバーを解放すると、ばねの弾発力により操作レバーが復帰すると共に、ピストンが前進してシリンダ内が負圧になり、容器の内容液をシリンダ内に吸い上げる。
【0009】
ここにおいて、ばねは、本体の両側面に取付けられた細長U字形状の構造となっているので、その長さを長く設定できると共に、その略全長を弾性機能部分として利用することができ、そのため、操作レバーの把握操作をその操作全体に亘って平均した適度な操作力で達成することができる。
【0010】
また、ばねは、本体の両側面に一対設けてあるので、ばねにかかる負担が分散軽減され、弾性劣化し難くなるため、ばねの耐久性が向上する。さらに、操作レバーの受圧面に対するばねの押圧面の摺動可能な弾接は、ガイド突片でガイドされているので、外れることなく確実に維持される。
【0011】
全構成部分が合成樹脂製であるので、廃棄時に合成樹脂部分と金属部分とを分別して回収する必要が全くなく、廃棄処理が簡便となる。
【0012】
【発明の実施の形態】
以下、本発明の一実施例を図面を参照しながら説明する。
図1は、噴霧器として構成されている手動ポンプを、取付けキャップ4により容器3の口部に螺合組付けした状態を示すもので、カバー21で覆った本体1の先端には、ノズル口を有するノズルヘッド2が設けてあり、その全体が合成樹脂製となっている。
【0013】
本体1は、図2に示すように、取付けキャップ4により容器3口部の上端に組付く組付き筒5の上部に、吸い上げパイプ20を介して容器3内に連通し、かつ途中の適所に弁機構を設けた流路を内部に有する縦筒6を立設し、この縦筒6の前部に、縦筒6内と連通したシリンダ7を一体設すると共に、縦筒6の上端前部には、縦筒6内およびノズルヘッド2内に連通した流路を内部に有する横筒8を一体設して構成されている。
【0014】
横筒8の上部には、図3に示すように、前部両側端に側壁10を垂下設すると共に、後部両側端にU字状ばね11の上側先端部を固着した枠体9が一体に組付けられている。
【0015】
ばね11は、合成樹脂製の板により細長U字形状に成形されていて、その下側先端部分12は肉薄に形成されていると共に、その先端下面を湾曲状にして押圧面13に形成されている。
【0016】
枠体9の側壁10の両外面には、操作レバー14の二又状となった上端部(図4参照)が、軸15によって枢着されていると共に、この操作レバー14の中央部よりやや上部には、シリンダ7内を進退するピストン17の先端部が、軸16によって枢止連結されている。
【0017】
操作レバー14の二又状の上端部後面には、ばね11の押圧面13を摺動可能に受ける下り勾配の受圧面18がそれぞれ形成されていると共に、各受圧面18の両側端にはそれぞれ一対のガイド突片19が立設されていて、ばね11の下側先端部分12をこのガイド突片19間でガイドする。
【0018】
【発明の効果】
本発明は、上記した構成となっているので、以下に示す効果を奏する。
操作レバーの復帰用弾発手段として、本体の両側面に取付けられた細長U字形状のばねが使用されているので、その弾発作用部分の長さを長く設定できると共に、その略全長を弾性機能部分として利用することができ、従って、操作レバーの把握操作をその操作全体に亘って平均した適度な操作力で達成することができるため、操作レバーの操作性が大幅に向上する。
【0019】
また、ばねは、本体の両側面に一対設けるので、ばねにかかる負担が分散軽減され、弾性劣化し難くなるため、ばねの耐久性が向上し、操作性の劣化が防止される。
【0020】
さらに、ばねは、容器の内容液と接触しない、本体の両側面に設けるので、耐内容物性を考慮する必要は無く、内容物の種類が制約されることは全く無い。
【0021】
またさらに、手動ポンプ全体を、合成樹脂製の構成部分の組合せで構成したので、廃棄処理時に分別回収の必要がなく、もって安全で効率の良い廃棄処理を行うことができる。
【図面の簡単な説明】
【図1】本発明の一実施例を容器に組付けた状態を示す、全体側面図。
【図2】図1に示した実施例の、カバーを省略して示した側面図。
【図3】図1に示した実施例の、枠体およびばねを示す側面図。
【図4】図1に示した実施例の、操作レバーを示す背面図。
【符号の説明】
1 ; 本体
2 ; ノズルヘッド
3 ; 容器
4 ; 取付けキャップ
5 ; 組付き筒
6 ; 縦筒
7 ; シリンダ
8 ; 横筒
9 ; 枠体
10; 側壁
11; ばね
12; 下側先端部分
13; 押圧面
14; 操作レバー
15; 軸
16; 軸
17; ピストン
18; 受圧面
19; ガイド突片
20; 吸い上げパイプ
21; カバー
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manual pump that is assembled to a mouth portion of a container and sucks and dispenses the liquid in the container by operating a lever.
[0002]
[Prior art]
This type of manual pump that pours or sprays detergent, pesticides, etc. in a container is connected to a cylinder communicating with the inside of the container, a piston that is pivotally connected to an operating lever, and a cylinder that advances and retreats in the cylinder. A coil spring is provided between the cylinder and the piston, and the operation lever is repelled in the return direction through the piston. By grasping the operation lever, the piston is retracted, and the contents in the cylinder Constructed to pump the liquid, pour out from the spout, release the operation lever, advance the piston through the coil spring, and suck the liquid in the container into the cylinder by the negative pressure in the cylinder Has been.
[0003]
[Problems to be solved by the invention]
However, in the above-described prior art, the coil spring housed in the small space in the cylinder as described above is used as the resilient means for returning the operation lever. Therefore, a relatively large force is required for the grasping operation of the operation lever that compresses the coil spring, and particularly a strong force is required in the latter half of the grasping operation, so that the operability is inferior.
[0004]
In addition, since the coil spring is housed in the cylinder and comes into contact with the content liquid, when using a metal coil spring, there is a problem that the type of the content liquid is restricted due to the problem of content resistance, and there is a problem. When a resin coil spring is used, there is no problem of resistance to contents, but there is a problem that operability tends to deteriorate due to insufficient elasticity and early elastic deterioration.
[0005]
Furthermore, although some metal coil springs are mounted outside the cylinder to improve the content resistance, there is a problem that it takes time and labor for separate collection.
[0006]
Therefore, the present invention was devised to solve the above-described problems in the prior art, and it is a technical problem to lengthen the elastic function portion of the operating lever return spring in the manual pump. It is an object of the present invention to improve the performance, eliminate the restriction of the content liquid by the spring, and further eliminate the need for separate collection at the time of disposal.
[0007]
[Means for Solving the Problems]
The means of the present invention for solving the above technical problem is:
Having a body assembled to the container mouth and having a flow path communicating with the container, and a cylinder integrally provided with the flow path;
Having an operating lever pivoted at one end to the body;
One end is pivotally connected to the operating lever, and the other end has a piston that is housed in a cylinder of the main body so as to be able to advance and retract.
One end is fixed to both side surfaces of the main body, and the pressing surface of the other end is slidably elastically contacted with the pressure receiving surface of the operating lever with guide projections standing on both side ends, and the operating lever is repelled in the return direction. Having a pair of elongated U-shaped springs;
All components are made of synthetic resin,
It is in.
[0008]
When the operating lever is grasped and operated against the spring force of the spring, the piston moves backward to pump the content liquid in the cylinder and is dispensed via the flow path in the main body. The operating lever is returned by the spring force of the spring, and the piston moves forward to create a negative pressure in the cylinder, sucking up the liquid in the container into the cylinder.
[0009]
Here, since the spring has an elongated U-shaped structure attached to both side surfaces of the main body, the length can be set long, and the substantially full length can be used as an elastic function part, and therefore The grasping operation of the operation lever can be achieved with an appropriate operation force averaged over the entire operation.
[0010]
In addition, since a pair of springs are provided on both side surfaces of the main body, the load on the springs is reduced and the elasticity is hardly deteriorated, so that the durability of the springs is improved. Furthermore, the slidable elastic contact of the pressing surface of the spring with respect to the pressure receiving surface of the operating lever is guided and reliably maintained without being disengaged.
[0011]
Since all the constituent parts are made of synthetic resin, there is no need to separate and collect the synthetic resin part and the metal part at the time of disposal, and the disposal process becomes simple.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a state in which a manual pump configured as a sprayer is screwed and assembled to the mouth portion of the container 3 by a mounting cap 4, and a nozzle port is provided at the tip of the main body 1 covered with a cover 21. The nozzle head 2 is provided, and the whole is made of synthetic resin.
[0013]
As shown in FIG. 2, the main body 1 communicates with the inside of the container 3 through the suction pipe 20 on the upper part of the assembled cylinder 5 that is assembled to the upper end of the container 3 by the mounting cap 4, and at an appropriate place in the middle A vertical cylinder 6 having a flow path provided with a valve mechanism is provided upright, and a cylinder 7 communicating with the inside of the vertical cylinder 6 is integrally provided at a front portion of the vertical cylinder 6. In this configuration, a horizontal cylinder 8 having a flow path communicating with the inside of the vertical cylinder 6 and the nozzle head 2 is provided integrally.
[0014]
As shown in FIG. 3, a frame 9 is integrally formed on the upper side of the horizontal cylinder 8. The side wall 10 is suspended from both side ends of the front part, and the upper end portion of the U-shaped spring 11 is fixed to both side ends of the rear part. It is assembled.
[0015]
The spring 11 is formed in an elongated U shape by a synthetic resin plate, and its lower tip portion 12 is formed thin, and the lower surface of the tip is curved and formed on the pressing surface 13. Yes.
[0016]
A bifurcated upper end (see FIG. 4) of the operation lever 14 is pivotally attached to both outer surfaces of the side wall 10 of the frame body 9 by a shaft 15 and slightly from the center of the operation lever 14. A tip end portion of a piston 17 that advances and retreats in the cylinder 7 is pivotally connected to the upper portion by a shaft 16.
[0017]
Downward pressure receiving surfaces 18 that slidably receive the pressing surface 13 of the spring 11 are formed on the rear surface of the bifurcated upper end of the operation lever 14, respectively, and at both ends of each pressure receiving surface 18, respectively. A pair of guide protrusions 19 are erected, and the lower end portion 12 of the spring 11 is guided between the guide protrusions 19.
[0018]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
As the elastic lever for returning the control lever, an elongated U-shaped spring attached to both sides of the main body is used, so that the length of the elastically acting part can be set long and its entire length is elastic. It can be used as a functional part, and therefore, the grasping operation of the operation lever can be achieved with an appropriate operation force averaged over the entire operation, so that the operability of the operation lever is greatly improved.
[0019]
Further, since a pair of springs are provided on both side surfaces of the main body, the load on the springs is distributed and reduced, and it is difficult for the elastic deterioration to occur. Therefore, the durability of the spring is improved and the operability is prevented from being deteriorated.
[0020]
Furthermore, since the springs are provided on both side surfaces of the main body so as not to come into contact with the content liquid of the container, there is no need to consider the content resistance, and the type of content is not restricted at all.
[0021]
Furthermore, since the entire manual pump is composed of a combination of components made of synthetic resin, there is no need for separate collection at the time of disposal, and safe and efficient disposal can be performed.
[Brief description of the drawings]
FIG. 1 is an overall side view showing a state in which an embodiment of the present invention is assembled to a container.
FIG. 2 is a side view of the embodiment shown in FIG. 1 with the cover omitted.
FIG. 3 is a side view showing a frame body and a spring in the embodiment shown in FIG. 1;
4 is a rear view showing an operation lever of the embodiment shown in FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Main body 2; Nozzle head 3; Container 4; Mounting cap 5; Assembled cylinder 6; Vertical cylinder 7; Cylinder 8; Horizontal cylinder 9; Frame body 10; Side wall 11; 14; Operation lever 15; Shaft 16; Shaft 17; Piston 18; Pressure receiving surface 19; Guide protrusion 20; Suction pipe 21;

Claims (1)

容器(3)口部に組付けられ、該容器(3)内に連通した流路を有すると共に、該流路に連通したシリンダ(7)を一体設した本体(1)と、一端が該本体(1)に枢着された操作レバー(14)と、一端が該操作レバー(14)に枢止連結され、他端部分が前記シリンダ(7)内に進退可能に収容されたピストン(17)と、一端部分が前記本体(1)の両側面に固定され、他端の押圧面(13)が前記操作レバー(14)の、両側端にガイド突片(19)を立設した受圧面(18)に摺動可能に弾接して、該操作レバー(14)を復帰方向に弾発する一対の細長U字形状のばね(11)と、を設けて成る、全構成部分を合成樹脂製とした手動ポンプ。A main body (1) that is assembled to the opening of the container (3) and has a flow path communicating with the container (3), and a cylinder (7) that communicates with the flow path, and one end of the main body (1). An operation lever (14) pivotally attached to (1) and a piston (17) whose one end is pivotally connected to the operation lever (14) and whose other end is accommodated in the cylinder (7) so as to be able to advance and retreat. One end portion is fixed to both side surfaces of the main body (1), and the pressing surface (13) at the other end is a pressure receiving surface ( e.g., guide protrusions (19) erected on both side ends of the operation lever (14)). 18) and a pair of elongated U-shaped springs (11) that slidably and elastically contact the operating lever (14) in the return direction, and all the components are made of synthetic resin. Manual pump.
JP22135497A 1997-08-18 1997-08-18 Manual pump Expired - Fee Related JP3765068B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22135497A JP3765068B2 (en) 1997-08-18 1997-08-18 Manual pump

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Application Number Priority Date Filing Date Title
JP22135497A JP3765068B2 (en) 1997-08-18 1997-08-18 Manual pump

Publications (2)

Publication Number Publication Date
JPH1157547A JPH1157547A (en) 1999-03-02
JP3765068B2 true JP3765068B2 (en) 2006-04-12

Family

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20159511A1 (en) * 2015-12-28 2017-06-28 Guala Dispensing Spa DELIVERY HEAD FOR A GRILLET SUPPLY DEVICE PROVIDED WITH A RETURN SPRING

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Publication number Publication date
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