JP2022182549A - Trigger type liquid sprayer - Google Patents

Trigger type liquid sprayer Download PDF

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Publication number
JP2022182549A
JP2022182549A JP2021090162A JP2021090162A JP2022182549A JP 2022182549 A JP2022182549 A JP 2022182549A JP 2021090162 A JP2021090162 A JP 2021090162A JP 2021090162 A JP2021090162 A JP 2021090162A JP 2022182549 A JP2022182549 A JP 2022182549A
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Prior art keywords
trigger
type liquid
biasing
vertical supply
cylinder
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JP2021090162A
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Japanese (ja)
Inventor
弘幸 中村
Hiroyuki Nakamura
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Priority to JP2021090162A priority Critical patent/JP2022182549A/en
Publication of JP2022182549A publication Critical patent/JP2022182549A/en
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    • 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
    • B05B11/1052Actuation means
    • B05B11/1056Actuation means comprising rotatable or articulated levers
    • B05B11/1057Triggers, 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
    • 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
    • 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
    • B05B11/0005Components or details
    • B05B11/0008Sealing or attachment arrangements between sprayer and container
    • 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
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • 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
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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
    • B05B11/1066Pump inlet valves
    • B05B11/1067Pump inlet valves actuated by pressure
    • 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
    • B05B11/1074Springs located outside pump chambers

Landscapes

  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

To provide a trigger type liquid sprayer which achieves reduction of the number of components and improvement of producibility.SOLUTION: A trigger type liquid sprayer 1 according to one aspect of the invention includes: a sprayer body 10; and a nozzle member 11. The sprayer body 10 includes: a passage member 15 having a vertical supply cylinder part 20 extending in a vertical direction and a pump part 22 which sends a liquid toward a jet hole 11a through the vertical supply cylinder part 20; and a trigger part 51 which is provided so as to be movable in an anteroposterior direction in front of the vertical supply cylinder part 20 and causes the pump part 22 to operate. At one of the trigger part 51 and the passage member 15, a biasing part 52a formed by a material softer than that of the one of the members is integrally fastened. The biasing part 52a is disposed between the one member and the other member of the trigger part 51 and the passage member 15 and biases the trigger part 51 forward.SELECTED DRAWING: Figure 1

Description

本発明は、トリガー式液体噴出器に関する。 The present invention relates to trigger-type liquid ejectors.

トリガー式液体噴出器は、上下方向に延びる縦供給筒部と、縦供給筒部の上端部から前方に延びる射出筒部と、射出筒部の前方に配置された噴出孔を有するノズル部材と、縦供給筒部の前方で前後動可能に設けられたトリガー部と、トリガー部の前後動に伴い噴出孔に向けて液体を送り出すポンプ部と、を備えている(例えば、下記特許文献1参照)。下記特許文献1の構成において、トリガー部は、射出筒部との間に介在する付勢部材を介して前方に向けて付勢されている。 The trigger-type liquid ejector includes a vertically extending vertical supply cylinder portion, an injection cylinder portion extending forward from the upper end of the vertical supply cylinder portion, a nozzle member having an ejection hole disposed in front of the injection cylinder portion, It has a trigger part that can move back and forth in front of the vertical supply tube part, and a pump part that sends out liquid toward the ejection hole as the trigger part moves back and forth (see, for example, Patent Document 1 below). . In the configuration of Patent Document 1 below, the trigger portion is biased forward via a biasing member interposed between the trigger portion and the ejection cylinder portion.

特開2020-82042号公報Japanese Unexamined Patent Application Publication No. 2020-82042

しかしながら、従来のトリガー式液体噴出器において、射出筒部やトリガー部とは別に付勢部材を準備しておく必要があることから、部品点数の削減が難しかった。
また、トリガー式液体噴出器の組立工程において、射出筒部とトリガー部との間に付勢部材を介在させるには、縦供給筒部及び付勢部材間の組み付け、並びにトリガー部及び付勢部材間の組み付けを行う必要がある。そのため、付勢部材のセット性に関して未だ改善の余地があり、製造効率の向上を図ることが難しかった。
However, in the conventional trigger-type liquid ejector, it is difficult to reduce the number of parts because it is necessary to prepare an urging member separately from the ejection cylinder portion and the trigger portion.
In addition, in the process of assembling the trigger type liquid ejector, in order to interpose the biasing member between the ejection tube portion and the trigger portion, it is necessary to assemble the vertical supply tube portion and the biasing member, and the trigger portion and the biasing member It is necessary to assemble between Therefore, there is still room for improvement in terms of setting properties of the biasing member, and it has been difficult to improve manufacturing efficiency.

本発明は、部品点数の削減や製造効率の向上を図ることができるトリガー式液体噴出器を提供する。 The present invention provides a trigger-type liquid ejector capable of reducing the number of parts and improving manufacturing efficiency.

上記課題を解決するために、本開示は以下の態様を採用した。
本開示の一態様に係るトリガー式液体噴出器は、液体を収容する容器体に装着される噴出器本体と、前記噴出器本体の前端部に装着され、液体を前方に向けて噴出する噴出孔が形成されたノズル部材と、を備え、前記噴出器本体は、上下方向に延びる縦供給筒部、及び前記縦供給筒部を通じて前記噴出孔に向けて液体を送り出すポンプ部を有する流路部材と、前記縦供給筒部の前方で前後方向に移動可能に設けられ、前記ポンプ部を動作させるトリガー部と、を備え、前記トリガー部及び前記流路部材のうち、一方の部材には、前記一方の部材よりも軟材質で形成された付勢部が一体に固着され、前記付勢部は、前記トリガー部及び前記流路部材のうち、他方の部材との間に介在して前記トリガー部を前方に向けて付勢する。
In order to solve the above problems, the present disclosure employs the following aspects.
A trigger-type liquid ejector according to an aspect of the present disclosure includes an ejector main body attached to a container body containing a liquid, and an ejection hole attached to a front end portion of the ejector main body and ejecting the liquid forward. and a flow path member having a vertical supply tube portion extending in the vertical direction and a pump portion for sending liquid toward the ejection hole through the vertical supply tube portion. and a trigger part provided movably in the front-rear direction in front of the vertical supply tube part to operate the pump part, wherein one of the trigger part and the channel member includes the one A biasing portion formed of a softer material than the member is integrally fixed, and the biasing portion is interposed between the other member of the trigger portion and the flow path member to press the trigger portion. Force forward.

本態様によれば、一方の部材と付勢部とを予め一体とすることで、部品点数の削減を図ることができる。
また、トリガー式液体噴出器の組立工程において、他方の部材に対して付勢部をセットするだけで、トリガー部及び流路部材の間に付勢部を介在させることができる。したがって、トリガー部及び流路部材のそれぞれに対して付勢部を組み付ける場合に比べ、セット性を向上させることができる。その結果、製造効率の向上を図ることができる。
According to this aspect, the number of parts can be reduced by integrating the one member and the biasing portion in advance.
Further, in the process of assembling the trigger type liquid ejector, the biasing part can be interposed between the trigger part and the channel member simply by setting the biasing part on the other member. Therefore, compared to the case where the biasing portion is attached to each of the trigger portion and the flow path member, the setting property can be improved. As a result, it is possible to improve the manufacturing efficiency.

上記態様のトリガー式液体噴出器において、前記付勢部は、前記トリガー部に固着されるとともに、前記トリガー部の後方への移動に伴い、前記流路部材に押し付けられることが好ましい。
本態様によれば、縦供給筒部やポンプ部等を含む流路部材に付勢部を固着する場合に比べ、設計自由度を向上させ易い。
In the trigger-type liquid ejector of the aspect described above, it is preferable that the biasing portion is fixed to the trigger portion and pressed against the flow path member as the trigger portion moves rearward.
According to this aspect, compared with the case where the urging portion is fixed to the channel member including the vertical supply tube portion, the pump portion, and the like, it is easier to improve the degree of freedom in design.

上記態様のトリガー式液体噴出器において、前記トリガー部には、後方に向けて開口する収容部が形成され、前記付勢部は、前記収容部内に埋め込まれた埋設部と、前記埋設部から後方に連なり、前記他方の部材に当接する当接部と、を備えていることが好ましい。
本態様によれば、トリガー部と付勢部との固着強度を埋設部によって確保し易くなる。そのため、付勢部の脱落や破損等を抑制し、トリガー式液体噴出器の信頼性を確保できる。
In the trigger-type liquid ejector of the aspect described above, the trigger section is formed with an accommodating section that opens toward the rear, and the biasing section includes an embedded section embedded in the accommodating section and an urging section extending backward from the embedded section. and a contact portion that contacts the other member.
According to this aspect, it becomes easy to ensure the fixing strength between the trigger portion and the biasing portion by the embedded portion. Therefore, it is possible to prevent the urging portion from coming off or being damaged, thereby ensuring the reliability of the trigger type liquid ejector.

上記態様のトリガー式液体噴出器において、前記トリガー部の前面には、前記付勢部と同一材料により形成された滑り止め部が設けられていることが好ましい。
本態様によれば、トリガー式液体噴出器の噴出操作にあたって滑り止め部を介してトリガー部を操作することで、操作性を向上させることができる。
In the trigger-type liquid ejector of the aspect described above, it is preferable that a non-slip portion made of the same material as the biasing portion is provided on the front surface of the trigger portion.
According to this aspect, the operability can be improved by operating the trigger portion via the non-slip portion in ejecting operation of the trigger type liquid ejector.

上記態様のトリガー式液体噴出器において、前記トリガー部を前後方向に貫いて前記付勢部と前記滑り止め部とを一体に接続する接続部を備えていることが好ましい。
本態様によれば、付勢部と滑り止め部とを一体に接続することで、付勢部と滑り止め部との固着強度を確保し易くなる。
In the trigger-type liquid ejector of the aspect described above, it is preferable to include a connecting portion that penetrates the trigger portion in the front-rear direction and integrally connects the biasing portion and the anti-slip portion.
According to this aspect, by integrally connecting the urging portion and the anti-slip portion, it becomes easier to secure the fixing strength between the urging portion and the anti-slip portion.

本発明の態様によれば、部品点数の削減や製造効率の向上を図ることができる。 According to the aspect of the present invention, it is possible to reduce the number of parts and improve manufacturing efficiency.

実施形態に係るトリガー式液体噴出器の縦断面図である。1 is a longitudinal sectional view of a trigger type liquid ejector according to an embodiment; FIG. 実施形態に係るトリガー式液体噴出器の正面図である。1 is a front view of a trigger type liquid ejector according to an embodiment; FIG. 実施形態に係るトリガー式液体噴出器の動作説明図である。FIG. 4 is an operation explanatory diagram of the trigger type liquid ejector according to the embodiment;

以下、本発明に係る実施形態について図面を参照して説明する。以下で説明する実施形態や変形例において、対応する構成については同一の符号を付して説明を省略する場合がある。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the embodiments and modifications described below, the same reference numerals may be assigned to corresponding configurations, and descriptions thereof may be omitted.

図1に示されるように、本実施形態のトリガー式液体噴出器1は、容器体A内に収容される液体を噴出可能とするものである。トリガー式液体噴出器1は、噴出器本体10と、ノズル部材11と、カバー13と、を備えている。
なお、トリガー式液体噴出器1の各構成部品は、特に記載がなければ、オレフィン系樹脂等、合成樹脂を用いた成形品とされている。
As shown in FIG. 1, a trigger-type liquid ejector 1 of this embodiment is capable of ejecting liquid contained in a container body A. As shown in FIG. A trigger type liquid ejector 1 includes an ejector body 10 , a nozzle member 11 and a cover 13 .
In addition, each component of the trigger type liquid ejector 1 is a molded product using a synthetic resin such as an olefin resin unless otherwise specified.

噴出器本体10は、縦供給筒部20を有する流路部材(他方の部材)15と、装着キャップ16と、パイプ17と、トリガーモジュール18と、を備えている。 The ejector body 10 includes a channel member (the other member) 15 having a vertical supply tube portion 20 , a mounting cap 16 , a pipe 17 and a trigger module 18 .

以下、縦供給筒部20の軸線O1に沿う方向(軸方向)を上下方向とし、上下方向に沿って容器体Aの底部(不図示)側を下側、その反対側を上側とする。上下方向から見て、軸線O1に交差する方向を径方向とする。径方向のうち、縦供給筒部20とノズル部材11とが並ぶ方向を前後方向とする。前後方向のうち、縦供給筒部20に対してノズル部材11側を前側、その逆側を後側とする。また、径方向のうち、上下方向から見て、前後方向に直交する方向を左右方向とする。 Hereinafter, the direction (axial direction) along the axis O1 of the vertical supply tube portion 20 is defined as the vertical direction, the bottom (not shown) side of the container body A is defined as the lower side, and the opposite side is defined as the upper side. A direction that intersects the axis O1 when viewed from above and below is defined as a radial direction. The direction in which the vertical supply tube portion 20 and the nozzle member 11 are aligned in the radial direction is defined as the front-rear direction. In the front-rear direction, the nozzle member 11 side with respect to the vertical supply tube portion 20 is the front side, and the opposite side is the rear side. Moreover, let the direction orthogonal to the front-back direction seen from an up-down direction among radial directions be a left-right direction.

流路部材15は、パイプ17を通じて容器体Aから吸い上げられた液体が、ノズル部材11に向けて流通する部分である。流路部材15は、縦供給筒部20と、横供給筒部21と、ポンプ部22と、を備えている。
縦供給筒部20は、容器体Aの口部A1内を通じて容器体A内の液体を吸上げる。縦供給筒部20は、上方に位置するものほど径が縮小する多段筒状に形成されている。具体的に、縦供給筒部20は、上方に位置する小径部20aと、段差部20bを介して小径部20aの下方に連なる大径部20cと、を備えている。なお、図示の例において、縦供給筒部20は、外筒と、外筒の内側に配設された内筒と、を備える二重筒構造になっている。
The flow channel member 15 is a portion through which the liquid sucked up from the container body A through the pipe 17 flows toward the nozzle member 11 . The channel member 15 includes a vertical supply tube portion 20 , a horizontal supply tube portion 21 and a pump portion 22 .
The vertical supply tubular portion 20 sucks up the liquid in the container body A through the mouth portion A1 of the container body A. As shown in FIG. The vertical supply tube portion 20 is formed in a multi-stage tube shape in which the diameter of the vertical supply tube portion 20 decreases with increasing position. Specifically, the vertical supply tube portion 20 includes a small diameter portion 20a positioned above, and a large diameter portion 20c continuous below the small diameter portion 20a via a stepped portion 20b. In the illustrated example, the vertical supply tube portion 20 has a double tube structure including an outer tube and an inner tube disposed inside the outer tube.

大径部20cには、径方向の外側に張り出すフランジ部20dが設けられている。
小径部20a内における上下方向の中間部分には、ボール弁28が設けられている。ボール弁28は、小径部20a内に突出する下弁座部20eに上方から接離する。ボール弁28は、小径部20a内において、縦供給筒部20を通じた容器体A内とポンプ部22との連通及び遮断を切り替える。具体的に、ボール弁28は、下弁座部20eから上方に離れた状態において容器体A内からポンプ部22への縦供給筒部20を通じた液体の流通を許容する。ボール弁28は、下弁座部20eに着座した状態において、ポンプ部22から容器体A内への縦供給筒部20を通じた液体の流通を規制する。
The large-diameter portion 20c is provided with a flange portion 20d projecting radially outward.
A ball valve 28 is provided at an intermediate portion in the vertical direction within the small diameter portion 20a. The ball valve 28 contacts and separates from above a lower valve seat portion 20e that protrudes into the small diameter portion 20a. The ball valve 28 switches communication and disconnection between the inside of the container body A and the pump section 22 through the vertical supply cylinder section 20 in the small diameter section 20a. Specifically, the ball valve 28 allows liquid to flow from the container body A to the pump portion 22 through the vertical supply tube portion 20 in a state of being separated upward from the lower valve seat portion 20e. The ball valve 28 regulates the flow of liquid from the pump section 22 into the container body A through the vertical supply tube section 20 when seated on the lower valve seat section 20e.

小径部20a内の上端部(ボール弁28よりも上方に位置する部分)には、切替弁29が設けられている。切替弁29は、LDPE(低密度ポリエチレン)等の弾性変形可能な材料によって一体に形成されている。切替弁29は、下方付勢状態で上方移動可能に小径部20a内に嵌め込まれている。切替弁29は、小径部20a内に突出する上弁座部20fに上方から接離する。切替弁29は、小径部20a内において、縦供給筒部20を通じたポンプ部22と射出筒部31内との連通及び遮断を切り替える。具体的に、切替弁29は、上弁座部20fから上方に離れた状態においてポンプ部22から横供給筒部21への縦供給筒部20を通じた液体の流通を許容する。切替弁29は、上弁座部20fに着座した状態において、横供給筒部21からポンプ部22への縦供給筒部20を通じた液体の流通を規制する。 A switching valve 29 is provided at the upper end portion (a portion located above the ball valve 28) within the small diameter portion 20a. The switching valve 29 is integrally formed of an elastically deformable material such as LDPE (low density polyethylene). The switching valve 29 is fitted in the small-diameter portion 20a so as to be movable upward in a downwardly biased state. The switching valve 29 contacts and separates from above an upper valve seat portion 20f that protrudes into the small diameter portion 20a. The switching valve 29 switches communication and disconnection between the pump portion 22 and the injection cylinder portion 31 through the vertical supply cylinder portion 20 in the small diameter portion 20a. Specifically, the switching valve 29 allows liquid to flow through the vertical supply tube portion 20 from the pump portion 22 to the horizontal supply tube portion 21 in a state of being separated upward from the upper valve seat portion 20f. The switching valve 29 regulates the flow of liquid through the vertical supply cylinder portion 20 from the horizontal supply cylinder portion 21 to the pump portion 22 in a state of being seated on the upper valve seat portion 20f.

小径部20aの前方には、シリンダ取付筒20gが設けられている。シリンダ取付筒20gは、前方に向けて開口する有底筒状に形成されている。シリンダ取付筒20gの周壁部において、下端部の一部は、段差部20bに連なっている。シリンダ取付筒20gの周壁部において、上端部は、縦リブ20hを介して横供給筒部21(後述する射出筒部31)に連なっている。縦リブ20hは、左右方向を厚さ方向として、前後方向に延びている。 A cylinder attachment tube 20g is provided in front of the small diameter portion 20a. 20 g of cylinder attachment cylinders are formed in the shape of a bottomed cylinder opened toward the front. A part of the lower end portion of the peripheral wall portion of the cylinder mounting tube 20g continues to the stepped portion 20b. In the peripheral wall portion of the cylinder mounting cylinder 20g, the upper end portion is connected to the horizontal supply cylinder portion 21 (the injection cylinder portion 31 described later) via the vertical rib 20h. The vertical rib 20h extends in the front-rear direction with the left-right direction as the thickness direction.

横供給筒部21は、縦供給筒部20内を通過した液体がノズル部材11に向けて流れる部分である。横供給筒部21は、縦供給筒部20の上端部から前方に向けて直線状に延びている。横供給筒部21は、射出筒部31と、中継部材32と、を備えている。
射出筒部31は、縦供給筒部20(外筒部分)に一体で形成されている。射出筒部31は、縦供給筒部20の上端部において、上弁座部20fよりも上方に位置する部分から前方に向けて延びている。
中継部材32は、射出筒部31とノズル部材11との間を接続する。中継部材32は、射出筒部31に前方から組み付けられている。
The horizontal supply tube portion 21 is a portion through which the liquid that has passed through the vertical supply tube portion 20 flows toward the nozzle member 11 . The horizontal supply tube portion 21 extends straight forward from the upper end portion of the vertical supply tube portion 20 . The horizontal supply tube portion 21 includes an injection tube portion 31 and a relay member 32 .
The injection cylinder portion 31 is formed integrally with the vertical supply cylinder portion 20 (outer cylinder portion). The injection cylinder portion 31 extends forward from a portion of the upper end portion of the vertical supply cylinder portion 20 located above the upper valve seat portion 20f.
The relay member 32 connects between the injection cylinder portion 31 and the nozzle member 11 . The relay member 32 is attached to the injection cylinder portion 31 from the front.

ポンプ部22は、トリガーモジュール18の移動に応じて動作(容器体A内の液体の貯留及び圧送)する。ポンプ部22は、シリンダ34と、ピストン35と、を備えている。
シリンダ34は、前方に向けて開口する有底筒状に形成されている。シリンダ34は、シリンダ取付筒20g内に前方から嵌め込まれている。シリンダ34のシリンダ周壁34a(以下、シリンダ周壁34aという。)のうち、上端部には、位置決め片34bが連なっている。
The pump section 22 operates (storing and pumping the liquid in the container body A) according to the movement of the trigger module 18 . The pump section 22 includes a cylinder 34 and a piston 35 .
The cylinder 34 is formed in a bottomed cylindrical shape that opens forward. The cylinder 34 is fitted into the cylinder mounting cylinder 20g from the front. A positioning piece 34b is connected to an upper end portion of a cylinder peripheral wall 34a (hereinafter referred to as a cylinder peripheral wall 34a) of the cylinder 34. As shown in FIG.

位置決め片34bは、側面視でL字状に形成されている。位置決め片34bは、シリンダ周壁34aの前端縁から上方に延びる上方延出片38と、上方延出片38の上端から後方に延びる差し込み片39と、を備えている。上方延出片38は、射出筒部31の直下において、シリンダ取付筒20gの前端開口縁を前方から覆っている。差し込み片39は、シリンダ取付筒20gと射出筒部31との間の隙間に前方から差し込まれている。 The positioning piece 34b is formed in an L shape when viewed from the side. The positioning piece 34b includes an upwardly extending piece 38 extending upward from the front edge of the cylinder peripheral wall 34a and an inserting piece 39 extending rearward from the upper end of the upwardly extending piece 38 . The upwardly extending piece 38 covers the front opening edge of the cylinder mounting tube 20g directly below the injection tube portion 31 from the front. The insertion piece 39 is inserted from the front into the gap between the cylinder mounting tube 20g and the injection tube portion 31. As shown in FIG.

ピストン35は、シリンダ34に対して前後動可能に設けられている。ピストン35は、後方に開口する有底筒状に形成されている。ピストン35は、シリンダ34に対する前後動に伴い、シリンダ34(シリンダ周壁34a)の内周面上を摺動する。シリンダ34内は、ピストン35の前方への移動に伴い減圧され、ピストン35の後方への移動に伴い加圧される。 The piston 35 is provided movably back and forth with respect to the cylinder 34 . The piston 35 is formed in a bottomed cylindrical shape that opens rearward. The piston 35 slides on the inner peripheral surface of the cylinder 34 (cylinder peripheral wall 34 a ) as it moves back and forth with respect to the cylinder 34 . The inside of the cylinder 34 is decompressed as the piston 35 moves forward, and is pressurized as the piston 35 moves backward.

シリンダ34内は、連通路36を通じて縦供給筒部20内に連通している。連通路36は、シリンダ34の底壁部34cと、小径部20aのうちボール弁28及び切替弁29間に位置する部分と、の間に形成されている。 The inside of the cylinder 34 communicates with the inside of the vertical supply tubular portion 20 through a communication passage 36 . The communication passage 36 is formed between the bottom wall portion 34c of the cylinder 34 and a portion of the small diameter portion 20a positioned between the ball valve 28 and the switching valve 29. As shown in FIG.

装着キャップ16は、上下方向に延びる筒状に形成されている。装着キャップ16は、容器体Aのうち口部A1の上端開口縁との間にフランジ部20dを挟み込んだ状態で、口部A1に着脱可能に締め付けられる。なお、装着キャップ16と口部A1との固定方法は、ねじ以外の方法(例えば、嵌合等)であってもよい。 The mounting cap 16 is formed in a tubular shape extending in the vertical direction. The mounting cap 16 is detachably fastened to the opening A1 of the container body A with the flange 20d sandwiched between it and the upper opening edge of the opening A1. The mounting cap 16 and the opening A1 may be fixed by a method other than screwing (for example, fitting).

パイプ17は、大径部20cの内側を通じて縦供給筒部20内に挿入され、小径部20a内に下方から嵌め込まれている。パイプ17は、トリガー式液体噴出器1が容器体Aに装着された状態において、容器体A内を下方に延びている。 The pipe 17 is inserted into the vertical supply tubular portion 20 through the inner side of the large-diameter portion 20c and is fitted into the small-diameter portion 20a from below. The pipe 17 extends downward inside the container body A when the trigger type liquid ejector 1 is attached to the container body A. As shown in FIG.

ノズル部材11は、中継部材32に対して前方から装着されている。ノズル部材11は、後方に開口する有頂筒状に形成されている。ノズル部材11の頂壁部(前壁部)には、前後方向に延びる噴出孔11aが形成されている。噴出孔11aは、ノズル部材11内及び中継部材32内を通じて射出筒部31内に連通している。 The nozzle member 11 is attached to the relay member 32 from the front. The nozzle member 11 is formed in a capped tubular shape that opens rearward. A top wall portion (front wall portion) of the nozzle member 11 is formed with a jet hole 11a extending in the front-rear direction. The ejection hole 11 a communicates with the injection cylinder portion 31 through the inside of the nozzle member 11 and the inside of the relay member 32 .

カバー13は、噴出器本体10のうち、装着キャップ16よりも上方に位置する部分を上方、後方及び側方から取り囲んでいる。カバー13は、噴出器本体10が前方に向けて挿入されることで、噴出器本体10に装着される。 The cover 13 surrounds a portion of the ejector body 10 located above the mounting cap 16 from above, rear and sides. The cover 13 is attached to the ejector body 10 by inserting the ejector body 10 toward the front.

トリガーモジュール18は、縦供給筒部20の前方に、前方付勢状態で後方移動可能に設けられている。トリガーモジュール18は、トリガー部(一方の部材)51と、軟材質部52と、を備えている。 The trigger module 18 is provided in front of the vertical supply tube portion 20 so as to be movable backward in a forward biased state. The trigger module 18 includes a trigger portion (one member) 51 and a soft material portion 52 .

トリガー部51は、ポンプ部22の前方に前後動可能に設けられている。具体的に、トリガー部51は、トリガー本体51aと、支持片51bと、を備えている。
トリガー本体51aは、前壁部71及び周壁部72を有し、後方に向けて開放された浅箱状に形成されている。トリガー本体51aは、ポンプ部22の前方を上方から下方に向かうに従い前方に傾斜して延びている。前壁部71の上端部には、後方に向けて延びる連結筒73が設けられている。連結筒73の前端部は、前壁部71の前面で開放されている。一方、連結筒73の後端部は、周壁部72の後端縁と同等の位置まで達している。連結筒73の後端部には、連結筒73内に臨む向きに左右方向に突出する連結軸73aが設けられている。連結軸73aは、ピストン35の前端部に連結されている。したがって、ピストン35は、トリガーモジュール18の後方への移動に伴い、シリンダ34に対して後方に移動する。
The trigger part 51 is provided in front of the pump part 22 so as to be movable back and forth. Specifically, the trigger portion 51 includes a trigger body 51a and a support piece 51b.
The trigger body 51a has a front wall portion 71 and a peripheral wall portion 72, and is formed in a shallow box shape that is open rearward. The trigger body 51a extends in front of the pump portion 22 while being inclined forward as it goes downward from above. A connecting tube 73 extending rearward is provided at the upper end portion of the front wall portion 71 . A front end portion of the connecting tube 73 is open at the front surface of the front wall portion 71 . On the other hand, the rear end portion of the connecting tube 73 reaches a position equivalent to the rear end edge of the peripheral wall portion 72 . A connecting shaft 73a is provided at the rear end of the connecting tube 73 and protrudes in the left-right direction so as to face the inside of the connecting tube 73 . The connecting shaft 73 a is connected to the front end of the piston 35 . Accordingly, the piston 35 moves rearwardly with respect to the cylinder 34 as the trigger module 18 moves rearwardly.

トリガー本体51aにおいて、連結筒73の上方に位置する部分は、収容部74を構成している。収容部74は、前壁部71、周壁部72及び連結筒73に囲まれた部分であって、後方に向けて開放されている。前壁部71のうち、周壁部72を構成する部分には、連通孔75が形成されている。連通孔75は、前壁部71を前後方向に貫通している。 A portion of the trigger body 51a located above the connecting tube 73 constitutes a housing portion 74. As shown in FIG. The housing portion 74 is a portion surrounded by the front wall portion 71, the peripheral wall portion 72, and the connecting tube 73, and is open rearward. A communicating hole 75 is formed in a portion of the front wall portion 71 that constitutes the peripheral wall portion 72 . The communication hole 75 penetrates the front wall portion 71 in the front-rear direction.

支持片51bは、トリガー本体51aの上端部に左右一対で設けられている。支持片51bは、中継部材32に対して左右方向の両側を上方に向けて延びている。各支持片51bの上端部は、左右方向に沿う軸線回りに回動可能に中継部材32に支持されている。 A pair of left and right support pieces 51b are provided at the upper end portion of the trigger body 51a. The support pieces 51 b extend upward on both sides in the left-right direction with respect to the relay member 32 . An upper end portion of each support piece 51b is supported by the relay member 32 so as to be rotatable around an axis along the left-right direction.

軟材質部52は、インサート成形等によってトリガー部51に一体に形成されている。軟材質部52は、トリガー部51の材質(例えば、PP等)よりも軟らかい軟材質であって、トリガー部51よりも弾性率が高く、かつトリガー部51よりも摩擦係数の高い材質により形成されている。このような材質として、オレフィン系エラストマ等が挙げられる。このように、軟質材として、オレフィン系エラストマを採用することで、トリガー式液体噴出器1の全体をオレフィン系樹脂で形成することができ、環境負荷の低減を図ることができる。 The soft material portion 52 is integrally formed with the trigger portion 51 by insert molding or the like. The soft material portion 52 is made of a material that is softer than the material of the trigger portion 51 (for example, PP), has a higher elastic modulus than the trigger portion 51, and a higher coefficient of friction than the trigger portion 51. ing. Such materials include olefinic elastomers and the like. By adopting the olefinic elastomer as the soft material in this way, the entire trigger type liquid ejector 1 can be made of the olefinic resin, and the environmental load can be reduced.

軟材質部52は、付勢部52aと、滑り止め部52bと、接続部52cと、が同一材料により一体に形成されている。
付勢部52aは、軟材質部52のうち、トリガー本体51aの上端部に設けられたブロック状のものである。付勢部52aは、トリガー部51を前方に向けて付勢する。具体的に、付勢部52aは、埋設部81と、当接部82と、を備えている。
In the soft material portion 52, the biasing portion 52a, the non-slip portion 52b, and the connecting portion 52c are integrally formed of the same material.
The biasing portion 52a is a block-shaped portion of the soft material portion 52 provided at the upper end portion of the trigger body 51a. The biasing portion 52a biases the trigger portion 51 forward. Specifically, the biasing portion 52 a includes an embedded portion 81 and a contact portion 82 .

埋設部81は、付勢部52aのうち収容部74内に埋め込まれた部分である。埋設部81は、収容部74の内面に固着され、付勢部52aの土台として機能する。
当接部82は、埋設部81から後方に向けて突出している。当接部82は、トリガー部51と流路部材15との間に介在して、トリガー部51の後方移動に伴い弾性変形(圧縮変形)する部分である。当接部82は、側面視で矩形状に形成されている。当接部82の上面82aは、中継部材32の下面に対して下方から近接又は当接している。上面82aは、側面視において前後方向に延びる平坦面に形成されている。
当接部82の後面82bは、上方延出片38の前面に対して前方から当接又は近接している。後面82bは、側面視において上下方向に延びる平坦面に形成されている。なお、上面82aや後面82bは、湾曲面等であってもよい。
The embedded portion 81 is a portion of the urging portion 52a that is embedded in the housing portion 74. As shown in FIG. The embedded portion 81 is fixed to the inner surface of the housing portion 74 and functions as a base for the biasing portion 52a.
The contact portion 82 protrudes rearward from the embedded portion 81 . The contact portion 82 is a portion that is interposed between the trigger portion 51 and the flow path member 15 and elastically deformed (compressively deformed) as the trigger portion 51 moves backward. The contact portion 82 is formed in a rectangular shape when viewed from the side. The upper surface 82a of the contact portion 82 approaches or contacts the lower surface of the relay member 32 from below. The upper surface 82a is formed as a flat surface extending in the front-rear direction in a side view.
The rear surface 82b of the contact portion 82 contacts or approaches the front surface of the upwardly extending piece 38 from the front. The rear surface 82b is formed as a flat surface extending vertically in a side view. The upper surface 82a and the rear surface 82b may be curved surfaces or the like.

滑り止め部52bは、トリガー本体51aの前壁部71において、連結筒73の下方に位置する部分に設けられている。具体的に、トリガー本体51aの前壁部71には、後方に窪んだ凹部71aが形成されている。凹部71aは、前壁部71の前面に倣って前後方向に延びている。滑り止め部52bは、少なくとも一部が凹部71a内に埋設された状態で前壁部71の前面上に露呈している。なお、滑り止め部52bは、前壁部71の前面と面一であってもよく、前壁部71の前面に対して膨出又は窪んでいてもよい。 The anti-slip portion 52b is provided at a portion of the front wall portion 71 of the trigger body 51a located below the connecting tube 73. As shown in FIG. Specifically, the front wall portion 71 of the trigger body 51a is formed with a concave portion 71a recessed rearward. The concave portion 71 a extends in the front-rear direction following the front surface of the front wall portion 71 . The non-slip portion 52b is exposed on the front surface of the front wall portion 71 while being at least partially embedded in the recess 71a. The anti-slip portion 52b may be flush with the front surface of the front wall portion 71, or may bulge or recess with respect to the front surface of the front wall portion 71. As shown in FIG.

図示の例において、滑り止め部52bには、前方に向けて突部52dが突出している。突部52dは、左右方向に延びるとともに、上下方向に間隔をあけて複数形成されている。なお、突部52dは、島状等に複数形成されていてもよい。 In the illustrated example, a protrusion 52d protrudes forward from the anti-slip portion 52b. The protrusions 52d extend in the left-right direction and are formed in plurality at intervals in the up-down direction. A plurality of protrusions 52d may be formed in an island shape or the like.

接続部52cは、付勢部52aと滑り止め部52bとの間を一体に接続している。具体的に、接続部52cは、貫通部85と、引き回し部86と、を備えている。
貫通部85は、連通孔75内に埋め込まれている。貫通部85の後端は、収容部74内で埋設部81の前端に連なっている。
The connecting portion 52c integrally connects the biasing portion 52a and the anti-slip portion 52b. Specifically, the connection portion 52 c includes a through portion 85 and a routing portion 86 .
The through portion 85 is embedded in the communication hole 75 . The rear end of the penetrating portion 85 continues to the front end of the embedded portion 81 within the accommodating portion 74 .

引き回し部86は、トリガー本体51aに設けられた接続溝71bを通じて貫通部85と滑り止め部52bとの間を接続している。接続溝71bは、前壁部71のうち、連結筒73に対して左右方向の両側に位置する部分を上下方向に延びている。接続溝71bは、前壁部71の前面に対して後方に窪んでいる。接続溝71bの下端は、凹部71aの上端にそれぞれ連通している。一方、接続溝71bの上端は、貫通部85の前端にそれぞれ連通している。引き回し部86は、少なくとも一部が接続溝71b内に埋め込まれた状態で、上下方向に延びている。したがって、引き回し部86は、上端縁において貫通部85を介して付勢部52aに接続され、下端縁において滑り止め部52bに接続されている。 The routing portion 86 connects the through portion 85 and the anti-slip portion 52b through a connection groove 71b provided in the trigger body 51a. The connection grooves 71b extend vertically in portions of the front wall portion 71 located on both sides of the connecting tube 73 in the left-right direction. The connection groove 71 b is recessed rearward with respect to the front surface of the front wall portion 71 . The lower ends of the connection grooves 71b communicate with the upper ends of the recesses 71a. On the other hand, the upper ends of the connection grooves 71b communicate with the front ends of the through portions 85, respectively. The routing portion 86 extends vertically with at least a portion thereof embedded in the connection groove 71b. Therefore, the routing portion 86 is connected to the urging portion 52a via the through portion 85 at the upper end edge, and is connected to the anti-slip portion 52b at the lower end edge.

トリガー式液体噴出器1は、モジュール成形工程と、組立工程と、を経て製造される。
モジュール成形工程では、トリガー部51をインサート品として、トリガー部51を軟材質部52によってインサート成形する。これにより、トリガー部51と軟材質部52とが一体に固着した状態で、トリガーモジュール18が形成される。
The trigger type liquid ejector 1 is manufactured through a module molding process and an assembly process.
In the module molding process, the trigger part 51 is insert-molded with the soft material part 52 as an insert product. As a result, the trigger module 18 is formed with the trigger portion 51 and the soft material portion 52 fixed together.

組立工程は、流路部材セット工程やトリガーセット工程、ノズルセット工程等がある。
流路部材セット工程では、流路部材15として縦供給筒部20、横供給筒部21及びポンプ部22同士を組み付けるとともに、流路部材15に対して装着キャップ16やパイプ17を組み付ける。
The assembly process includes a channel member setting process, a trigger setting process, a nozzle setting process, and the like.
In the channel member setting process, the vertical supply cylinder portion 20 , the horizontal supply cylinder portion 21 and the pump portion 22 are assembled together as the channel member 15 , and the mounting cap 16 and the pipe 17 are assembled to the channel member 15 .

続いて、トリガーセット工程では、流路部材15に対してトリガーモジュール18を組み付ける。具体的には、支持片51bを中継部材32に連結するとともに、連結軸73aをピストン35の前端部に連結する。すると、当接部82のうち上面82aが中継部材32の下面に向かい合い、後面82bが上方延出片38の前面に向かい合った状態でトリガーモジュール18が流路部材15に組み付けられる。 Subsequently, in the trigger setting step, the trigger module 18 is assembled to the flow channel member 15 . Specifically, the support piece 51 b is connected to the relay member 32 and the connecting shaft 73 a is connected to the front end of the piston 35 . Then, the trigger module 18 is assembled to the flow path member 15 with the upper surface 82 a of the contact portion 82 facing the lower surface of the relay member 32 and the rear surface 82 b facing the front surface of the upwardly extending piece 38 .

ノズルセット工程では、中継部材32の前端部にノズル部材11を装着する。
以上により、トリガー式液体噴出器1が完成する。
In the nozzle setting process, the nozzle member 11 is attached to the front end portion of the relay member 32 .
With the above, the trigger type liquid ejector 1 is completed.

次に、上述のしたトリガー式液体噴出器1を容器体Aに装着して使用する場合について説明する。
なお、トリガーモジュール18の複数回の操作によって、トリガー式液体噴出器1の各部内に液体が充填され、縦供給筒部20内に液体を吸い上げることができる状態になっているものとする。
Next, the case where the trigger type liquid ejector 1 described above is attached to the container body A and used will be described.
By operating the trigger module 18 a plurality of times, each part of the trigger type liquid ejector 1 is filled with liquid, and the liquid can be sucked up into the vertical supply cylinder part 20 .

まず、図1、図3に示すように、トリガー本体51aを介してトリガーモジュール18を後方に引くと、トリガー部51が支持片51bを起点に回動することで、トリガー部51が後方に移動する。すると、付勢部52a(当接部82)がトリガー部51と流路部材15との間で挟み込まれることで、当接部82が圧縮変形する。具体的に、当接部82は、上面82aと中継部材32との間に作用する上下方向の圧縮荷重と、後面82bと上方延出片38との間に作用する前後方向の圧縮荷重と、により上下方向及び前後方向に圧縮変形する。これにより、トリガー部51には、後方移動に伴い、前方に向けて付勢力が付与される。 First, as shown in FIGS. 1 and 3, when the trigger module 18 is pulled rearward through the trigger body 51a, the trigger portion 51 rotates around the support piece 51b, thereby moving the trigger portion 51 rearward. do. Then, the biasing portion 52a (contact portion 82) is sandwiched between the trigger portion 51 and the flow path member 15, and the contact portion 82 is compressed and deformed. Specifically, the contact portion 82 is subjected to a vertical compressive load acting between the upper surface 82a and the relay member 32, a longitudinal compressive load acting between the rear surface 82b and the upwardly extending piece 38, It compresses and deforms in the vertical direction and the front-back direction. As a result, the trigger portion 51 is applied with a forward biasing force as it moves backward.

トリガー部51が後方に移動すると、ピストン35がシリンダ34に対して後方に移動する。すると、ピストン35がシリンダ周壁34aの内周面上を摺動することで、シリンダ34内が加圧される。これにより、シリンダ34内の液体が、連通路36を通じて縦供給筒部20(小径部20a)内に供給される。すると、小径部20aに供給された液体の圧力により、ボール弁28が下弁座部20eに向けて押し付けられることで、容器体A内と縦供給筒部20内との連通が遮断される。その結果、小径部20a内の液体は、縦供給筒部20を上方に向けて流通する。 When the trigger portion 51 moves rearward, the piston 35 moves rearward with respect to the cylinder 34 . Then, the inside of the cylinder 34 is pressurized by the piston 35 sliding on the inner peripheral surface of the cylinder peripheral wall 34a. As a result, the liquid in the cylinder 34 is supplied through the communication passage 36 into the vertical supply tubular portion 20 (small diameter portion 20a). Then, the ball valve 28 is pressed toward the lower valve seat portion 20e by the pressure of the liquid supplied to the small diameter portion 20a, and communication between the inside of the container body A and the inside of the vertical supply tube portion 20 is blocked. As a result, the liquid in the small-diameter portion 20a flows through the vertical supply tube portion 20 upward.

小径部20a内に液体が流入することで、小径部20a内のうちボール弁28と切替弁29とで囲まれた空間が加圧される。すると、切替弁29が上方に押し上げられることで、切替弁29が上弁座部20fから離間する。これにより、小径部20a内と射出筒部31内とが連通することで、小径部20a内の液体が射出筒部31に向けて流通する。射出筒部31内を流通する液体は、中継部材32を通じてノズル部材11に到達し、噴出孔11aを通じて噴出される。 As the liquid flows into the small diameter portion 20a, the space surrounded by the ball valve 28 and the switching valve 29 in the small diameter portion 20a is pressurized. Then, the switching valve 29 is pushed upward, thereby separating the switching valve 29 from the upper valve seat portion 20f. As a result, the inside of the small-diameter portion 20 a and the inside of the injection cylinder portion 31 are communicated with each other, so that the liquid inside the small-diameter portion 20 a flows toward the injection cylinder portion 31 . The liquid flowing through the ejection cylinder portion 31 reaches the nozzle member 11 through the relay member 32 and is ejected through the ejection holes 11a.

トリガー部51の操作を解除すると、当接部82の復元力によってトリガー部51が前方に移動する。これに伴い、ピストン35がシリンダ34に対して前方に復元移動することで、ピストン35内が減圧される。これにより、ボール弁28が下弁座部20eから浮き上がり、容器体A内とシリンダ34と小径部20a内を通じて連通する。一方、切替弁29は、上弁座部20fに着座した状態を維持することで、小径部20a内を通じたシリンダ34内と射出筒部31内との連通が遮断される。その結果、容器体A内の液体が縦供給筒部20内に吸い上げられる。縦供給筒部20内に流入した液体は、連通路36を通じてシリンダ34内に導入されることで、次の噴出操作に備えることができる。 When the operation of the trigger portion 51 is released, the restoring force of the contact portion 82 causes the trigger portion 51 to move forward. Along with this, the piston 35 is restored forward relative to the cylinder 34, and the pressure inside the piston 35 is reduced. As a result, the ball valve 28 is lifted from the lower valve seat portion 20e, and communicates with the inside of the container body A through the cylinder 34 and the inside of the small diameter portion 20a. On the other hand, the switching valve 29 remains seated on the upper valve seat portion 20f, thereby blocking communication between the inside of the cylinder 34 and the inside of the injection cylinder portion 31 through the inside of the small diameter portion 20a. As a result, the liquid in the container body A is sucked up into the vertical supply tubular portion 20 . The liquid that has flowed into the vertical supply tubular portion 20 is introduced into the cylinder 34 through the communication passage 36, thereby preparing for the next ejection operation.

このように、本実施形態では、トリガー部51には、流路部材15との間に介在してトリガー部51を前方に向けて付勢する付勢部52aがトリガー部51に一体に固着されている構成とした。
この構成によれば、トリガー部51と付勢部52aとを予め一体とすることで、部品点数の削減を図ることができる。
また、トリガー式液体噴出器1の組立工程において、流路部材15に対して付勢部52aをセットする(本実施形態では、向い合わせる)だけで、トリガー部51及び流路部材15の間に付勢部52aを介在させることができる。したがって、トリガー部51及び流路部材15のそれぞれに対して付勢部52aを組み付ける場合に比べ、セット性を向上させることができる。その結果、製造効率の向上を図ることができる。
As described above, in the present embodiment, the biasing portion 52a that is interposed between the trigger portion 51 and the flow path member 15 and biases the trigger portion 51 forward is fixed to the trigger portion 51 integrally. It was configured as follows.
According to this configuration, the number of parts can be reduced by integrating the trigger portion 51 and the biasing portion 52a in advance.
In addition, in the process of assembling the trigger type liquid ejector 1 , simply by setting the urging portion 52 a to the channel member 15 (facing each other in this embodiment), the force between the trigger portion 51 and the channel member 15 can be adjusted. A biasing portion 52a can be interposed. Therefore, compared to the case where the urging portion 52a is assembled to each of the trigger portion 51 and the flow path member 15, the setting property can be improved. As a result, it is possible to improve the manufacturing efficiency.

本実施形態では、付勢部52aがトリガー部51に固着される構成とした。
この構成によれば、縦供給筒部20やポンプ部22等を含む流路部材15に付勢部52aを固着する場合に比べ、設計自由度を向上させ易い。
In this embodiment, the urging portion 52a is fixed to the trigger portion 51. As shown in FIG.
According to this configuration, compared with the case where the urging portion 52a is fixed to the channel member 15 including the vertical supply cylinder portion 20, the pump portion 22, and the like, it is easier to improve the degree of freedom in design.

本実施形態では、付勢部52aが、トリガー部51に形成された収容部74内に埋め込まれた埋設部81を備えている構成とした。
この構成によれば、トリガー部51と付勢部52aとの固着強度を埋設部81によって確保し易くなる。そのため、付勢部52aの脱落や破損等を抑制し、トリガー式液体噴出器1の信頼性を確保できる。
In this embodiment, the urging portion 52 a is configured to include the embedded portion 81 embedded in the accommodating portion 74 formed in the trigger portion 51 .
According to this configuration, the embedding portion 81 facilitates ensuring the fixing strength between the trigger portion 51 and the biasing portion 52a. Therefore, it is possible to prevent the urging portion 52a from coming off or being damaged, thereby ensuring the reliability of the trigger type liquid ejector 1. FIG.

本実施形態では、付勢部52aと同一材料により形成された滑り止め部52bがトリガー部51の前面に設けられている構成とした。
この構成によれば、トリガー式液体噴出器1の噴出操作にあたって滑り止め部52bを介してトリガー部51を操作することで、操作性を向上させることができる。
In this embodiment, the anti-slip portion 52b made of the same material as the biasing portion 52a is provided on the front surface of the trigger portion 51. As shown in FIG.
According to this configuration, the operability can be improved by operating the trigger portion 51 via the anti-slip portion 52b when operating the trigger type liquid ejector 1 to eject.

本実施形態において、付勢部52aと滑り止め部52bとを一体に接続する接続部52cを備える構成とした。
この構成によれば、付勢部52aと滑り止め部52bとを一体に接続することで、付勢部52aと滑り止め部52bとの固着強度を確保し易くなる。
In the present embodiment, a connection portion 52c that integrally connects the biasing portion 52a and the anti-slip portion 52b is provided.
According to this configuration, by integrally connecting the urging portion 52a and the anti-slip portion 52b, it becomes easier to secure the fixing strength between the urging portion 52a and the anti-slip portion 52b.

以上、本発明の好ましい実施形態を説明したが、本発明はこれら実施形態に限定されることはない。本発明の趣旨を逸脱しない範囲で、構成の付加、省略、置換及びその他の変更が可能である。本発明は上述した説明によって限定されることはなく、添付の特許請求の範囲によってのみ限定される。
上述した実施形態では、トリガー部51が回動可能な構成について説明したが、この構成に限られない。トリガー部51は、前後方向に移動可能な構成であれば、スライド可能に構成されていてもよい。
上述した実施形態では、軟材質部52がインサート成形により形成された構成について説明したが、この構成に限られない。軟材質部52は、トリガー式液体噴出器1の組立工程前にトリガー部51に一体に固着されていれば、接着等でトリガー部51に固着されていてもよい。
Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other changes in configuration are possible without departing from the scope of the present invention. The present invention is not limited by the foregoing description, but only by the appended claims.
Although the configuration in which the trigger portion 51 is rotatable has been described in the above-described embodiment, the configuration is not limited to this configuration. The trigger part 51 may be configured to be slidable as long as it is configured to be movable in the front-rear direction.
Although the configuration in which the soft material portion 52 is formed by insert molding has been described in the above-described embodiment, the configuration is not limited to this. The soft material portion 52 may be fixed to the trigger portion 51 by adhesion or the like as long as it is integrally fixed to the trigger portion 51 before the process of assembling the trigger type liquid ejector 1 .

上述した実施形態では、付勢部52aが位置決め片34b及び中継部材32のそれぞれに当接する構成について説明したが、この構成に限られない。付勢部52aは、流路部材15の何れかの位置に当接する構成であればよい。
上述した実施形態では、付勢部52aが一方の部材としてのトリガー部51に固着された構成について説明したが、この構成に限られない。付勢部は、一方の部材としての流路部材15(縦供給筒部20や横供給筒部21、ポンプ部22等)に固着されていてもよい。
上述した実施形態では、付勢部52aが滑り止め部52bとともに軟材質部52を構成する例について説明したが、この構成に限られない。軟材質部52は、少なくとも付勢部52aを備えていればよい。また、付勢部52aは、ブロック状に限らず、板状や波状、環状等、種々の形状を採用することができる。
上述した実施形態では、軟材質部52がオレフィン系エラストマで形成される構成を例にして説明したが、この構成に限られない。軟材質部52は、例えばエラストマ、ニトリルゴム、ブチルゴム、若しくはシリコンゴム等で形成されていてもよい。
In the above-described embodiment, the configuration in which the biasing portion 52a abuts on the positioning piece 34b and the relay member 32 has been described, but the configuration is not limited to this. The urging portion 52 a may be configured to contact any position of the flow path member 15 .
In the embodiment described above, the configuration in which the biasing portion 52a is fixed to the trigger portion 51 as one member has been described, but the configuration is not limited to this. The urging portion may be fixed to the channel member 15 (vertical supply cylinder portion 20, horizontal supply cylinder portion 21, pump portion 22, etc.) as one member.
In the above-described embodiment, an example in which the biasing portion 52a constitutes the soft material portion 52 together with the non-slip portion 52b has been described, but the configuration is not limited to this. The soft material portion 52 may include at least the biasing portion 52a. Further, the urging portion 52a is not limited to a block shape, and various shapes such as a plate shape, a wave shape, and an annular shape can be adopted.
In the above-described embodiment, the configuration in which the soft material portion 52 is formed of the olefinic elastomer has been described as an example, but the configuration is not limited to this. The soft material portion 52 may be made of, for example, elastomer, nitrile rubber, butyl rubber, silicone rubber, or the like.

その他、本発明の趣旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した変形例を適宜組み合わせてもよい。 In addition, it is possible to appropriately replace the components in the above-described embodiment with well-known components without departing from the gist of the present invention, and the above-described modifications may be combined as appropriate.

1:トリガー式液体噴出器
10:噴出器本体
11:ノズル部材
11a:噴出孔
15:流路部材(他方の部材、一方の部材)
20:縦供給筒部
22:ポンプ部
51:トリガー部(一方の部材、他方の部材)
52a:付勢部
52b:滑り止め部
52c:接続部
74:収容部
81:埋設部
82:当接部
A:容器体
1: Trigger-type liquid ejector 10: Ejector main body 11: Nozzle member 11a: Ejection hole 15: Flow path member (other member, one member)
20: Vertical supply tube portion 22: Pump portion 51: Trigger portion (one member, the other member)
52a: biasing portion 52b: non-slip portion 52c: connecting portion 74: accommodating portion 81: embedded portion 82: contact portion A: container body

Claims (5)

液体を収容する容器体に装着される噴出器本体と、
前記噴出器本体の前端部に装着され、液体を前方に向けて噴出する噴出孔が形成されたノズル部材と、を備え、
前記噴出器本体は、
上下方向に延びる縦供給筒部、及び前記縦供給筒部を通じて前記噴出孔に向けて液体を送り出すポンプ部を有する流路部材と、
前記縦供給筒部の前方で前後方向に移動可能に設けられ、前記ポンプ部を動作させるトリガー部と、を備え、
前記トリガー部及び前記流路部材のうち、一方の部材には、前記一方の部材よりも軟材質で形成された付勢部が一体に固着され、
前記付勢部は、前記トリガー部及び前記流路部材のうち、他方の部材との間に介在して前記トリガー部を前方に向けて付勢するトリガー式液体噴出器。
an ejector main body attached to a container body containing a liquid;
a nozzle member attached to the front end of the ejector body and formed with an ejection hole for ejecting liquid forward;
The ejector body is
a channel member having a vertical supply cylinder portion extending in the vertical direction and a pump portion for sending liquid toward the ejection hole through the vertical supply cylinder portion;
a trigger part provided movably in the front-rear direction in front of the vertical supply tube part and operating the pump part,
An urging portion made of a softer material than the one member is integrally fixed to one of the trigger portion and the flow path member,
The trigger-type liquid ejector, wherein the urging portion is interposed between the other member of the trigger portion and the channel member and urges the trigger portion forward.
前記付勢部は、前記トリガー部に固着されるとともに、前記トリガー部の後方への移動に伴い、前記流路部材に押し付けられる請求項1に記載のトリガー式液体噴出器。 2. The trigger-type liquid ejector according to claim 1, wherein the biasing portion is fixed to the trigger portion and pressed against the flow path member as the trigger portion moves rearward. 前記トリガー部には、後方に向けて開口する収容部が形成され、
前記付勢部は、
前記収容部内に埋め込まれた埋設部と、
前記埋設部から後方に連なり、前記他方の部材に当接する当接部と、を備えている請求項2に記載のトリガー式液体噴出器。
The trigger part is formed with an accommodating part that opens toward the rear,
The urging portion is
an embedded portion embedded in the containing portion;
3. The trigger-type liquid ejector according to claim 2, further comprising a contact portion that continues rearward from the embedded portion and contacts the other member.
前記トリガー部の前面には、前記付勢部と同一材料により形成された滑り止め部が設けられている請求項2又は請求項3に記載のトリガー式液体噴出器。 4. The trigger-type liquid ejector according to claim 2, wherein a non-slip portion made of the same material as the biasing portion is provided on the front surface of the trigger portion. 前記トリガー部を前後方向に貫いて前記付勢部と前記滑り止め部とを一体に接続する接続部を備えている請求項4に記載のトリガー式液体噴出器。 5. The trigger-type liquid ejector according to claim 4, further comprising a connection portion that penetrates the trigger portion in the front-rear direction and integrally connects the biasing portion and the anti-slip portion.
JP2021090162A 2021-05-28 2021-05-28 Trigger type liquid sprayer Pending JP2022182549A (en)

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