JP2021133355A - Foam discharge part structure of injection device - Google Patents

Foam discharge part structure of injection device Download PDF

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JP2021133355A
JP2021133355A JP2020034333A JP2020034333A JP2021133355A JP 2021133355 A JP2021133355 A JP 2021133355A JP 2020034333 A JP2020034333 A JP 2020034333A JP 2020034333 A JP2020034333 A JP 2020034333A JP 2021133355 A JP2021133355 A JP 2021133355A
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foam
pipe member
discharge
wall portion
partition wall
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JP7401346B2 (en
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洋一 先曽
Yoichi Sakiso
洋一 先曽
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Yoshino Kogyosho Co Ltd
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Abstract

To provide a foam discharge part structure capable of selecting an injection mode of a single foam discharge port and an injection mode from a plurality of foam discharge ports and injecting in a wide angle without lowering the foam quality.SOLUTION: A foam nozzle 20 is rotatably attached to a tip part 12b of a pipe member 12 of an injection device. The foam nozzle 20 has a base wall part 24 orthogonal to an axial direction O of the pipe member 12 and a partition wall part 42 facing the base wall part 24, a discharge hole 54 communicating with the pipe member 12 is provided via a space R partitioned between the partition wall part 42 and the base wall part 24, and a foam cylinder 66 is arranged outside the discharge hole 54. The discharge hole 54 and the foam cylinder 66 form a foam discharge port A. A partition wall 38 formed between the partition wall part 42 and the base wall part 24 divides a first compartment R1 and a second compartment R2, and each compartment communicates with the pipe member 12. As the foam discharge port A, a single first foam discharge port A1 leading to the first compartment R1 and a plurality of second foam discharge ports A2 leading to the second compartment R2 are formed.SELECTED DRAWING: Figure 1

Description

本発明は、噴射装置の泡吐出部構造に関する。 The present invention relates to a foam ejection part structure of an injection device.

従来、洗剤や整髪料などの発泡性を有する液体を収納した容器体に装着されたポンプ式の噴射装置として、前記容器体内の液体を吸い上げて、射出筒から圧送するように構成し、この射出筒の先端に付設した泡吐出部構造により、液体を霧化し、発泡させて外方へ突出するように構成した装置が知られている(特許文献1)。
前記泡吐出部構造は、前記射出筒に、管壁の基部を嵌挿させるとともに、管壁の先部内に軸部を支承させた管部材(スピンエレメント)と、前記管壁の基部に回転可能に取り付けた発泡ノズルとからなり、この発泡ノズルに、前記軸部に回転可能に組み付けた吐出チップを一体的に組み付けている。
この吐出チップは、前記軸部の周面に嵌合させた嵌合筒部の先端に内向きフランジを付設し、この内向きフランジと軸部の先端面との間にスピン機構を形成するとともに、内向きフランジのフランジ孔である吐出孔の周りから発泡筒を外方へ突出している。
こうすることにより、射出筒からスピン機構内へ流入する液体を、前記吐出孔から円錐状の霧として噴射させ、この霧が発泡筒に衝突して発泡するように構成している。
Conventionally, as a pump-type injection device mounted on a container body containing an effervescent liquid such as a detergent or a hairdressing agent, the liquid inside the container is sucked up and pumped from an injection cylinder, and this injection is performed. There is known an apparatus configured to atomize a liquid, foam it, and project it outward by a foam discharge portion structure attached to the tip of the cylinder (Patent Document 1).
In the foam discharge portion structure, the base portion of the pipe wall is fitted into the injection cylinder, and the pipe member (spin element) having the shaft portion supported in the tip portion of the pipe wall and the base portion of the pipe wall can be rotated. It is composed of a foam nozzle attached to the foam nozzle, and a discharge tip rotatably assembled to the shaft portion is integrally assembled to the foam nozzle.
In this discharge tip, an inward flange is attached to the tip of a fitting cylinder portion fitted to the peripheral surface of the shaft portion, and a spin mechanism is formed between the inward flange and the tip surface of the shaft portion. , The foam cylinder protrudes outward from around the discharge hole, which is the flange hole of the inward flange.
By doing so, the liquid flowing from the injection cylinder into the spin mechanism is injected as a conical mist from the discharge hole, and the mist collides with the foam cylinder to foam.

特開平8−71463Japanese Patent Application Laid-Open No. 8-71463

例えば発泡性の液体を目的面に射出するときには、一度の操作でより広い面に吹き付けることが望まれる場合がある。
特許文献1の装置では、単一の操作でより広い面に吹き付けるためには、吐出孔から霧状に吐出された液体が発泡筒の内面に当たる度合いを減らし、より広い角度で吐出されるような構成にする必要がある。
しかしながら、そのような構成とすると、その分、霧状の液体に混合される空気の量が減り、液体の泡立ちが弱くなり、泡質が低下する可能性があるという問題点がある。
その反面、用途によっては、広い面に吹き付ける必要がない場面も存在する。
For example, when ejecting a foaming liquid onto a target surface, it may be desired to spray it on a wider surface with a single operation.
In the apparatus of Patent Document 1, in order to spray the liquid on a wider surface with a single operation, the degree to which the liquid discharged in the form of mist from the discharge hole hits the inner surface of the foam cylinder is reduced, and the liquid is discharged at a wider angle. Must be configured.
However, such a configuration has a problem that the amount of air mixed with the mist-like liquid is reduced, the foaming of the liquid is weakened, and the foam quality may be deteriorated.
On the other hand, depending on the application, there are situations where it is not necessary to spray on a wide surface.

本発明の目的は、単数の泡吐出口の噴射モードと、複数の泡吐出口からの噴射モードとを選択でき、泡質を下げずに広角に噴射できる泡吐出部構造を提供することである。 An object of the present invention is to provide a foam ejection part structure capable of selecting an injection mode of a single foam ejection port and an injection mode from a plurality of foam ejection ports and injecting a wide angle without lowering the foam quality. ..

第1の手段は、発泡性を有する液体を泡状にして吐出する噴射装置の液体射出経路の下流側に装備された管部材12と、
この管部材12の先部12bに回転可能に取り付けられた発泡ノズル20とからなり、
発泡ノズル20は、前記管部材12の軸方向Оに直交する基壁部24を有する基部材22と、
基壁部24と向かい合う隔壁部42を有し、隔壁部42と基壁部24との間に周囲から区画された空間Rを画成する区画体40と、
前記隔壁部42の外側に設けられ、前記空間Rを経由して前記管部材12に連通する吐出孔54を有し、この吐出孔54から霧状の液体を吐出する吐出チップ50と、
吐出チップ50の外側に配置された発泡筒66を有する発泡部材60と
を具備し、かつ前記吐出孔54と発泡筒66とで泡吐出口Aを形成しており、
前記管部材12に対する発泡ノズル20の回転操作により、管部材12の内部から前記空間Rに至る流路Pの開閉を可能とした噴射装置の泡吐出部構造において、
前記隔壁部42と基壁部24との間に、前記管部材12の軸方向Оから見て、前記空間Rを、第1分室R1と第2分室R2とに区分する仕切り壁38を形成し、
前記基壁部24に、前記管部材12を第1分室R1に連通させる第1貫通孔34Aと、前記管部材12を第2分室R2に連通させる第2貫通孔34Bとをそれぞれ形成するとともに、
前記泡吐出口Aとして、前記第1分室R1に通ずる単一の第1泡吐出口A1と、前記第2分室R2に通ずる複数の第2泡吐出口A2とを形成した。
The first means is a pipe member 12 provided on the downstream side of the liquid injection path of the injection device that ejects the effervescent liquid in the form of bubbles.
It is composed of a foam nozzle 20 rotatably attached to the tip portion 12b of the pipe member 12.
The foam nozzle 20 includes a base member 22 having a base wall portion 24 orthogonal to the axial direction О of the pipe member 12.
A partition body 40 having a partition wall portion 42 facing the base wall portion 24 and defining a space R partitioned from the surroundings between the partition wall portion 42 and the base wall portion 24.
A discharge tip 50 provided on the outside of the partition wall portion 42, having a discharge hole 54 communicating with the pipe member 12 via the space R, and discharging a mist-like liquid from the discharge hole 54.
A foam member 60 having a foam cylinder 66 arranged on the outside of the discharge tip 50 is provided, and the foam discharge port A is formed by the discharge hole 54 and the foam cylinder 66.
In the foam discharge portion structure of the injection device, which enables opening and closing of the flow path P from the inside of the pipe member 12 to the space R by rotating the foam nozzle 20 with respect to the pipe member 12.
A partition wall 38 is formed between the partition wall portion 42 and the base wall portion 24 to divide the space R into a first branch chamber R1 and a second branch chamber R2 when viewed from the axial direction О of the pipe member 12. ,
A first through hole 34A for communicating the pipe member 12 with the first branch chamber R1 and a second through hole 34B for communicating the pipe member 12 with the second branch chamber R2 are formed in the base wall portion 24, respectively.
As the bubble discharge port A, a single first bubble discharge port A1 leading to the first branch chamber R1 and a plurality of second bubble discharge ports A2 leading to the second branch chamber R2 were formed.

本手段では、図1に示す如く、噴射装置の液体射出経路(図示例では射出筒4)の下流側に装備された管部材12と、この管部材12の先部12bに回転可能に取り付けられた発泡ノズル20とからなる泡吐出部構造を開示している。
前記発泡ノズル20は、前記管部材12の軸方向Оに直交する基壁部24を有する基部材22と、基壁部24と向かい合う隔壁部42を有し、隔壁部42と基壁部24との間に周囲から区画された空間Rを画成する区画体40とを具備する。
そして前記隔壁部42と基壁部24との間に、前記管部材12の軸方向Оから見て、前記空間Rを、第1分室R1と第2分室R2とに区分する仕切り壁38を形成している。
またこれら第1分室R1及び第2分室R2をそれぞれ基壁部24に穿設した貫通孔を介して前記管部材12に連通させるとともに、前記第1分室R1に通ずる単一の第1泡吐出口A1と、前記第2分室R2に通ずる複数の第2泡吐出口A2とを形成している。
この構造によれば、単一の第1泡吐出口A1から泡を吐出するモード(図6(D)参照)及び複数の第2泡吐出口A2から泡を吐出するモード(図6(B)参照)を状況に応じて使い分けることができる。より広い角度へ泡を噴射したいときには、その用途にした複数の吐出口を選択すればよく、そうすることで、泡の質が低下することを回避することができる。
In this means, as shown in FIG. 1, the pipe member 12 provided on the downstream side of the liquid injection path (injection cylinder 4 in the illustrated example) of the injection device and the tip portion 12b of the pipe member 12 are rotatably attached. The structure of the foam discharge portion including the foam nozzle 20 is disclosed.
The foam nozzle 20 has a base member 22 having a base wall portion 24 orthogonal to the axial direction О of the pipe member 12, a partition wall portion 42 facing the base wall portion 24, and the partition wall portion 42 and the base wall portion 24. A partition body 40 that defines a space R partitioned from the surroundings is provided between the two.
Then, a partition wall 38 is formed between the partition wall portion 42 and the base wall portion 24 to divide the space R into a first branch chamber R1 and a second branch chamber R2 when viewed from the axial direction О of the pipe member 12. doing.
Further, the first branch chamber R1 and the second branch chamber R2 are communicated with the pipe member 12 through the through holes formed in the base wall portion 24, respectively, and a single first bubble discharge port leading to the first branch chamber R1. A1 and a plurality of second bubble discharge ports A2 leading to the second branch chamber R2 are formed.
According to this structure, a mode in which bubbles are discharged from a single first bubble discharge port A1 (see FIG. 6D) and a mode in which bubbles are discharged from a plurality of second bubble discharge ports A2 (FIG. 6B). (See) can be used properly according to the situation. When it is desired to inject bubbles at a wider angle, it is sufficient to select a plurality of discharge ports for that purpose, and by doing so, it is possible to avoid deterioration of the quality of the bubbles.

第2の手段は、第1の手段を有し、かつ前記管部材12は、前記先部12bの内側に、管部材12と同心状に支承させた軸部16を有し、
軸部16を前記基壁部24から突設する嵌合筒部30内に相対的に回転可能に嵌合させ、
前記嵌合筒部30の内周面に前記管部材12の基部12a側と連続する連通凹部32を形成するとともに、前記軸部16の外周面に、周方向に離間させて、主連通溝18A及び副連通溝18Bを形成しており、
これら主連通溝18A及び副連通溝18Bは、管部材12の管径方向から見て前記連通凹部32と重なるように配置されており、
かつ、発泡ノズル20を特定の角度位置に回転させたときに、前記主連通溝18A及び副連通溝18Bの一方が第1分室R1へ、また他方が第2分室R2へそれぞれ連続するように設けた。
The second means has the first means, and the pipe member 12 has a shaft portion 16 concentrically supported with the pipe member 12 inside the tip portion 12b.
The shaft portion 16 is relatively rotatably fitted in the fitting cylinder portion 30 projecting from the base wall portion 24.
A communication recess 32 continuous with the base portion 12a side of the pipe member 12 is formed on the inner peripheral surface of the fitting cylinder portion 30, and the main communication groove 18A is separated from the outer peripheral surface of the shaft portion 16 in the circumferential direction. And a sub-communication groove 18B is formed.
The main communication groove 18A and the sub communication groove 18B are arranged so as to overlap the communication recess 32 when viewed from the pipe radial direction of the pipe member 12.
Further, when the foam nozzle 20 is rotated to a specific angle position, one of the main communication groove 18A and the sub-communication groove 18B is provided so as to be continuous with the first branch chamber R1 and the other is continuous with the second branch chamber R2. rice field.

本手段では、図2に示す如く管部材12の内部から前記空間Rに至る流路Pの一部として、前記嵌合筒部30の内周面に前記管部材12の基部12a側と連続する連通凹部32を形成している。
また前記軸部16の外周面に、周方向に離間させて、主連通溝18A及び副連通溝18Bを形成している。
そして、発泡ノズル20を特定の角度位置に回転させたときに、管部材12の基部12a側と連続する連通凹部32と重なる主連通溝18A及び副連通溝18Bの一方が第1分室R1へ、また他方が第2分室R2へそれぞれ連続するように設けている。
この構造によれば、発泡ノズル20の使用態様として、単一の第1泡吐出口A1及び複数の第2泡吐出口A2の双方から泡を吐出するモード(図6(C)参照)を選択することができ、利便性が向上する。
In this means, as shown in FIG. 2, as a part of the flow path P from the inside of the pipe member 12 to the space R, the inner peripheral surface of the fitting cylinder portion 30 is continuous with the base portion 12a side of the pipe member 12. The communication recess 32 is formed.
Further, a main communication groove 18A and a sub communication groove 18B are formed on the outer peripheral surface of the shaft portion 16 so as to be separated from each other in the circumferential direction.
Then, when the foam nozzle 20 is rotated to a specific angle position, one of the main communication groove 18A and the sub communication groove 18B overlapping the communication recess 32 continuous with the base 12a side of the pipe member 12 goes to the first branch chamber R1. The other is provided so as to be continuous with the second branch chamber R2.
According to this structure, as a usage mode of the foam nozzle 20, a mode in which bubbles are discharged from both a single first bubble discharge port A1 and a plurality of second bubble discharge ports A2 (see FIG. 6C) is selected. It can be done and convenience is improved.

第3の手段は、第1の手段又は第2の手段を有し、かつ前記管部材12の軸方向Оから見て、第2分室R2が第1分室R1より広くなるように、前記仕切り壁38を形成した。 The third means has the first means or the second means, and the partition wall so that the second branch chamber R2 is wider than the first branch chamber R1 when viewed from the axial direction О of the pipe member 12. 38 was formed.

本手段では、図6(A)に示す如く、前記管部材12の軸方向Оから見て、複数の第2泡吐出口A2と連続する第2分室R2が、単数の泡吐出口Aと連続する第1分室R1より広くなるように、前記仕切り壁38を形成している。
この構造によれば、泡吐出口の配置を無理なく行うことができる。
In this means, as shown in FIG. 6A, the second branch chamber R2 continuous with the plurality of second bubble discharge ports A2 is continuous with the single bubble discharge port A when viewed from the axial direction О of the pipe member 12. The partition wall 38 is formed so as to be wider than the first branch chamber R1.
According to this structure, the foam discharge port can be arranged without difficulty.

第1の手段に係る発明によれば、発泡ノズル20の隔壁部42と基壁部24との間に、管部材12の軸方向Оから見て、前記隔壁部42及び基壁部24の間に形成される空間Rを、第1分室R1と第2分室R2とに区分する仕切り壁38を形成し、前記第1分室R1に通ずる単一の第1泡吐出口A1と、前記第2分室R2に通ずる複数の第2泡吐出口A2とを形成したから、泡質を低下させることなく、単一の吐出口からの吐出モードと、より広い角度への噴射に適した複数の吐出口からの吐出モードとを選択することができる。
第2の手段に係る発明によれば、発泡ノズル20を特定の角度位置に回転させたときに、管部材12の基部12a側と連続する連通凹部32と重なる主連通溝18A及び副連通溝18Bの一方が第1分室R1へ、また他方が第2分室R2へそれぞれ連続するように設けたから、発泡ノズル20の使用態様として、単一の第1泡吐出口A1及び複数の第2泡吐出口A2の双方から泡を吐出するモードを選択することができ、利便性が向上する。
第3の手段に係る発明によれば、前記管部材12の軸方向Оから見て、複数の第2泡吐出口A2と連続する第2分室R2が、単数の泡吐出口Aと連続する第1分室R1より広くなるようにしたから、泡吐出口の配置を無理なく行うことができる。
According to the invention according to the first means, between the partition wall portion 42 and the base wall portion 24 of the foam nozzle 20, when viewed from the axial direction О of the pipe member 12, between the partition wall portion 42 and the base wall portion 24. A partition wall 38 for dividing the space R formed in the first branch chamber R1 and the second branch chamber R2 is formed, and a single first bubble discharge port A1 leading to the first branch chamber R1 and the second branch chamber R1 are formed. Since the plurality of second foam discharge ports A2 leading to R2 are formed, the discharge mode from a single discharge port and the plurality of discharge ports suitable for injection to a wider angle can be performed without deteriorating the foam quality. You can select the discharge mode of.
According to the invention according to the second means, when the foam nozzle 20 is rotated to a specific angle position, the main communication groove 18A and the sub communication groove 18B overlap with the communication recess 32 continuous with the base portion 12a side of the pipe member 12. Since one is provided continuously to the first branch chamber R1 and the other is provided so as to be continuous with the second branch chamber R2, the foam nozzle 20 is used as a single first bubble discharge port A1 and a plurality of second bubble discharge ports. The mode of discharging bubbles from both A2 can be selected, and the convenience is improved.
According to the invention according to the third means, when viewed from the axial direction О of the pipe member 12, the second branch chamber R2 continuous with the plurality of second bubble discharge ports A2 is continuous with the single bubble discharge port A. Since it is made wider than the 1-minute chamber R1, the foam discharge port can be arranged without difficulty.

本発明の実施形態に係る泡吐出部構造を備えた噴射装置の全体図である。It is an overall view of the injection device provided with the foam discharge part structure which concerns on embodiment of this invention. 図1の泡噴出部構造の主要部を側方から見た断面図である。It is sectional drawing which looked at the main part of the bubble ejection part structure of FIG. 1 from the side. 図1に示す噴射装置の正面図である。It is a front view of the injection device shown in FIG. 図1の泡噴出部構造の主要部を上方から見た断面図である。It is sectional drawing which looked at the main part of the bubble ejection part structure of FIG. 1 from above. 図1の泡噴出部構造の発泡ノズルの一部品(基部材)の斜視図である。It is a perspective view of one component (base member) of the foam nozzle of the foam ejection part structure of FIG. 図1の泡噴出部構造の作用の説明図であり、同図(A)は全ての泡吐出口が閉であるモードを、同図(B)は一対の第2泡吐出口から泡が吐出されるモードを、同図(C)は単一の第1泡吐出口及び一対の第2泡吐出口から泡が吐出されるモードを、同図(D)は単一の第1泡吐出口が吐出されるモードをそれぞれ示している。It is explanatory drawing of the operation of the bubble ejection part structure of FIG. 1, FIG. The mode shown in the figure (C) is a mode in which bubbles are discharged from a single first bubble discharge port and a pair of second bubble discharge ports, and the mode shown in the figure (D) is a single first bubble discharge port. Indicates the mode in which is discharged. 図4と同じ方向から見た、一対の第2泡吐出口から泡が吐出される状態を、チップペアの変形を強調して表した説明図である。It is explanatory drawing which emphasized the deformation of a chip pair, and showed the state which bubbles are discharged from a pair of 2nd bubble discharge ports, which were seen from the same direction as FIG.

図1から図7は、本発明の実施形態に係る噴射装置の泡吐出部構造及び当該泡吐出部構造を備えた噴射装置を示している。
図1には当該噴射装置1の全体図が示されている。泡吐出部構造以外の噴射装置の構造は従来公知であり、まず公知の構造を簡単に説明する。
前記噴射装置は、容器体の口頸部(図示せず)に使用するためのものであり、符号3で示す、縦方向に延びる主筒(図示例では内筒部3aと外筒部3bとからなる)を有し、その主筒の下部に、前記口頸部の外面へ装着させるための装着キャップ2が取り付けられている。
前記主筒3の上端部からは、射出筒4が前方へ突設されている。
なお、本明細書では、説明の便宜上、図1の右方を“後”と、左方を“前”と、これらに直交する方向を“左右”と称する。
前記射出筒4の下方に位置させて、前記主筒3と連通するシリンダ5が前方へ突設されており、このシリンダ5内にピストン6が前後動可能に嵌合されている。前記射出筒4の前部からは、前後方向への揺動可能なトリガー7の上端部が枢着されている。このトリガー7は付勢手段により、前方へ付勢されており、このトリガー7に前記ピストンの前部を連係させている。
前記主筒3の内部には、第1逆止弁V1及び第2逆止弁V2が配置されており、トリガー7の操作により、容器体内の液体を、第1逆止弁V1を介してシリンダ5内に吸い込むとともに、シリンダ5内から第2逆止弁V2を介して射出筒4側へ圧送するように構成している。8は、カバー部材である。
もっとも、噴射装置は、容器体から液体を吸込み、射出筒4から吐出することができればどのような構造でも構わない。例えばトリガー式ではなくてもよい。
1 to 7 show a foam ejection part structure of the injection device according to the embodiment of the present invention and an injection device provided with the foam discharge portion structure.
FIG. 1 shows an overall view of the injection device 1. The structure of the injection device other than the foam discharge portion structure is conventionally known, and the known structure will be briefly described first.
The injection device is intended to be used for the mouth and neck portion (not shown) of the container body, and has a main cylinder (inner cylinder portion 3a and outer cylinder portion 3b in the illustrated example) extending in the vertical direction indicated by reference numeral 3. A mounting cap 2 for mounting on the outer surface of the mouth and neck is attached to the lower part of the main cylinder.
An injection cylinder 4 projects forward from the upper end of the main cylinder 3.
In the present specification, for convenience of explanation, the right side of FIG. 1 is referred to as "rear", the left side is referred to as "front", and the direction orthogonal to these is referred to as "left and right".
A cylinder 5 that is positioned below the injection cylinder 4 and communicates with the main cylinder 3 is projected forward, and a piston 6 is fitted in the cylinder 5 so as to be movable back and forth. From the front portion of the injection cylinder 4, the upper end portion of the trigger 7 that can swing in the front-rear direction is pivotally attached. The trigger 7 is urged forward by an urging means, and the trigger 7 is linked to the front portion of the piston.
A first check valve V1 and a second check valve V2 are arranged inside the main cylinder 3, and by operating the trigger 7, the liquid in the container is transferred to the cylinder via the first check valve V1. It is configured to be sucked into the injection cylinder 5 and pumped from the inside of the cylinder 5 to the injection cylinder 4 side via the second check valve V2. Reference numeral 8 denotes a cover member.
However, the injection device may have any structure as long as it can suck the liquid from the container body and discharge it from the injection cylinder 4. For example, it does not have to be a trigger type.

本発明において、前記泡吐出部構造10は、前記射出筒4の先端(前端)側に装着して使用される。
前記泡吐出部構造10は、図1に示す如く、管部材12と発泡ノズル20とからなる。
In the present invention, the foam discharge portion structure 10 is used by being mounted on the tip end (front end) side of the injection cylinder 4.
As shown in FIG. 1, the foam discharge portion structure 10 includes a pipe member 12 and a foam nozzle 20.

前記管部材12は、前記射出筒4と発泡ノズル20とを連結するとともに、射出筒4の内部を発泡ノズル20に連通させる部材である。
前記管部材12の基部12aは前記射出筒4の前部内に嵌合されており、また管部材12の先部12bは前記発泡ノズル20の後部に連結されている。
図示例では、図2に示す如く、前記基部12aを小径管部に形成するとともに、この小径管部の前端に外向きフランジ13が付設されており、この外向きフランジ13から、先部12bである大径管部を前方へ突設している。図示の大径管部は前記小径管部に対して下側へ偏心されている。
先部12b内には、この先部に対して同心状で軸部16が支承されている。
図示例の軸部16は、前端閉塞の円筒形に形成されているが、丸棒状に形成しても構わない。
前記軸部16の外周面の前部には、軸部の周方向の一部(図示例では、図1の状態での軸部16の上面)に位置させて、主連通溝18Aを形成している。
この主連通溝18Aは、前記管部材12の軸方向Оに延びており、後述の嵌合筒部30に形成した連通凹部32と重なり合うことで、管部材12の内部から発泡ノズル20の内部へ至る流路Pが開通するように形成している。
好適な本実施形態では、前記軸部16の周方向の別の一部(図示例では、図1の状態で軸部16の側面)に副連通溝18Bを形成している。この副連通溝18Bは、形成される位置を除いて、前記主連通溝18Aと同じ構造であってよい。
なお、前記主連通溝18A及び副連通溝18Bの位置は、適宜変更することができる。
The pipe member 12 is a member that connects the injection cylinder 4 and the foam nozzle 20 and communicates the inside of the injection cylinder 4 with the foam nozzle 20.
The base portion 12a of the pipe member 12 is fitted in the front portion of the injection cylinder 4, and the front portion 12b of the pipe member 12 is connected to the rear portion of the foam nozzle 20.
In the illustrated example, as shown in FIG. 2, the base portion 12a is formed in the small-diameter pipe portion, and an outward flange 13 is attached to the front end of the small-diameter pipe portion. A large-diameter pipe is projected forward. The large-diameter pipe portion shown in the figure is eccentric downward with respect to the small-diameter pipe portion.
In the tip portion 12b, a shaft portion 16 is supported concentrically with respect to the tip portion.
The shaft portion 16 in the illustrated example is formed in a cylindrical shape with the front end closed, but may be formed in a round bar shape.
A main communication groove 18A is formed in the front portion of the outer peripheral surface of the shaft portion 16 so as to be located on a part of the shaft portion in the circumferential direction (in the illustrated example, the upper surface of the shaft portion 16 in the state of FIG. 1). ing.
The main communication groove 18A extends in the axial direction О of the pipe member 12, and overlaps with the communication recess 32 formed in the fitting cylinder portion 30, which will be described later, from the inside of the pipe member 12 to the inside of the foam nozzle 20. The flow path P to reach is formed so as to open.
In a preferred embodiment, the sub-communication groove 18B is formed in another part of the shaft portion 16 in the circumferential direction (in the illustrated example, the side surface of the shaft portion 16 in the state of FIG. 1). The sub-communication groove 18B may have the same structure as the main communication groove 18A except for the position where it is formed.
The positions of the main communication groove 18A and the sub communication groove 18B can be changed as appropriate.

前記発泡ノズル20は、図2に示す如く、基部材22と、区画体40と、吐出チップ50と、発泡部材60とを具備する。 As shown in FIG. 2, the foam nozzle 20 includes a base member 22, a compartment 40, a discharge tip 50, and a foam member 60.

前記基部材22は、前記管部材12の軸線Оと直交する基壁部24を有する。本実施形態では、前記基壁部24は、前方から見て、矩形(図示例では略正方形)に形成されているが、その形状は適宜変更することができる。 The base member 22 has a base wall portion 24 orthogonal to the axis О of the pipe member 12. In the present embodiment, the base wall portion 24 is formed in a rectangular shape (substantially square in the illustrated example) when viewed from the front, but the shape thereof can be changed as appropriate.

前記基壁部24の周端部からは、外周壁26が後方へ突設されている。
また前記基壁部24の後面からは、大径の連結筒部28と小径の嵌合筒部30とが2重筒状に後方へ突設されている。
連結筒部28及び嵌合筒部30は、円筒状であり、連結筒部28は前記管部材12の先部12bの外面に対して、また嵌合筒部30は前記軸部16の外面へそれぞれ回転可能に嵌合されている。
前記連結筒部28の内面には、前記先部12bからの抜止め防止用の抜止め用リブ29が周設されている。
前記嵌合筒部30の後部の内周面には、前記流路Pの一部を形成する連通凹部32を周設している。
The outer peripheral wall 26 projects rearward from the peripheral end of the base wall portion 24.
Further, from the rear surface of the base wall portion 24, a large-diameter connecting cylinder portion 28 and a small-diameter fitting cylinder portion 30 are projected rearward in a double tubular shape.
The connecting cylinder portion 28 and the fitting cylinder portion 30 have a cylindrical shape, the connecting cylinder portion 28 is directed to the outer surface of the tip portion 12b of the pipe member 12, and the fitting cylinder portion 30 is directed to the outer surface of the shaft portion 16. Each is rotatably fitted.
On the inner surface of the connecting cylinder portion 28, a retaining rib 29 for preventing retaining from the tip portion 12b is provided around the inner surface.
A communication recess 32 forming a part of the flow path P is provided around the inner peripheral surface of the rear portion of the fitting cylinder portion 30.

前記基壁部24の前面の周端部付近からは、図2に示すように、第1囲成筒部36が前方へ突設されている。
前記第1囲成筒部36は、図示例において、図5に示す如く、前方から見て略四角形状の輪郭を有する。具体的には、第1囲成筒部36は、その略四角形の各辺に相当する辺部分36aと、四角形の角部付近に位置し、丸みを付けたコーナー部分36bとで形成されている。もっともその形状は適宜変更することができる。
As shown in FIG. 2, the first enclosure cylinder portion 36 projects forward from the vicinity of the peripheral end portion on the front surface of the base wall portion 24.
In the illustrated example, the first enclosure 36 has a substantially quadrangular contour when viewed from the front, as shown in FIG. Specifically, the first enclosure cylinder portion 36 is formed by a side portion 36a corresponding to each side of the substantially quadrangle and a corner portion 36b located near the corner portion of the quadrangle and rounded. .. However, the shape can be changed as appropriate.

前記基壁部24には、図5に示すように、仕切り壁38と第1貫通孔34A及び第2貫通孔34Bとが形成されている。
前記仕切り壁38は、前記第1囲成筒部36の内側に配置されており、前記基壁部24の前面から前方突出されている。
前記仕切り壁38の突出長は、好適な図示例において、前記第1囲成筒部36の突出長よりも低く設定している。なお、仕切り壁38の突出長は、前記第1囲成筒部36の突出長と同等あるいは高くしても構わない。
前記仕切り壁38の形状は、図示例において、前方から見て略V字形である。この仕切り壁38は、前記第1囲成筒部36の略四角形状の輪郭の中心に位置する曲がり部38aと、この曲り部からの角部分と中心部との間を延びる2つの直線部38bとで形成されている。
前記仕切り壁38は、前記第1囲成筒部36で囲まれる略四角形状の基壁部分を、四半部(三角形状の部分)と残りの部分とに区分している。
前記第1貫通孔34A及び第2貫通孔34Bは、前記流路Pの一部であり、前記仕切り壁38の両側に位置するように配置されている。図示例では、第1貫通孔34Aは、前記四半部側に、かつ第2貫通孔34Bは残りの部分にそれぞれ配置されている。
また前記第1貫通孔34A及び第2貫通孔34Bは、後方から見て、前記嵌合筒部30の内側に位置するように配置されている(図2及び図4参照)。
好適な図示例では、第1貫通孔34A及び第2貫通孔34Bは、図3に示す如く、嵌合筒部30の筒軸を中心として90°の角度を保って配置されている。故に、発泡ノズル20を90°ずつ回転させたときに、前記第1貫通孔34A及び第2貫通孔34Bが、順次、前記主連通溝18Aと副連通溝18Bとに接続することが可能に構成している。
As shown in FIG. 5, the base wall portion 24 is formed with a partition wall 38, a first through hole 34A, and a second through hole 34B.
The partition wall 38 is arranged inside the first enclosure cylinder portion 36, and projects forward from the front surface of the base wall portion 24.
The protruding length of the partition wall 38 is set lower than the protruding length of the first enclosure cylinder portion 36 in a suitable illustrated example. The protruding length of the partition wall 38 may be equal to or higher than the protruding length of the first surrounding cylinder portion 36.
The shape of the partition wall 38 is substantially V-shaped when viewed from the front in the illustrated example. The partition wall 38 includes a bent portion 38a located at the center of a substantially quadrangular contour of the first surrounding tubular portion 36, and two straight portions 38b extending between the corner portion and the central portion from the bent portion. It is formed by.
The partition wall 38 divides a substantially quadrangular base wall portion surrounded by the first surrounding cylinder portion 36 into a quarter portion (triangular portion) and the remaining portion.
The first through hole 34A and the second through hole 34B are a part of the flow path P and are arranged so as to be located on both sides of the partition wall 38. In the illustrated example, the first through hole 34A is arranged on the quarter portion side, and the second through hole 34B is arranged on the remaining portion.
Further, the first through hole 34A and the second through hole 34B are arranged so as to be located inside the fitting cylinder portion 30 when viewed from the rear (see FIGS. 2 and 4).
In a preferred illustrated example, the first through hole 34A and the second through hole 34B are arranged at an angle of 90 ° about the cylinder axis of the fitting cylinder portion 30 as shown in FIG. Therefore, when the foam nozzle 20 is rotated by 90 °, the first through hole 34A and the second through hole 34B can be sequentially connected to the main communication groove 18A and the sub communication groove 18B. doing.

前記区画体40は、図2に示す如く、前記基壁部24と向かい合う隔壁部42を有し、隔壁部42の周端部から連結片45を介して前後方向へ延びるカバー周壁46を付設している。
図示例のカバー周壁46は、図3に示す如く、四角筒に形成されており、このカバー周壁46の後半部は、前記基部材22の外周壁26の外面に嵌着されている。こうすることにより、前記区画体40は、前記基部材22に対して回転不能に組み付けられている。
前記隔壁部42の前面の外周部には、図2に示す如く、発泡部材60を取り付けるための環状凹部43が形成されている。
As shown in FIG. 2, the compartment 40 has a partition wall portion 42 facing the base wall portion 24, and is provided with a cover peripheral wall 46 extending in the front-rear direction from the peripheral end portion of the partition wall portion 42 via a connecting piece 45. ing.
As shown in FIG. 3, the cover peripheral wall 46 of the illustrated example is formed in a square cylinder, and the latter half of the cover peripheral wall 46 is fitted to the outer surface of the outer peripheral wall 26 of the base member 22. By doing so, the compartment 40 is non-rotatably assembled to the base member 22.
As shown in FIG. 2, an annular recess 43 for attaching the foam member 60 is formed on the outer peripheral portion of the front surface of the partition wall portion 42.

前記隔壁部42の後面からは、前記第1囲成筒部36の突設箇所に対応させて、第2囲成筒部44を後方へ突設させている。第2囲成筒部44と第1囲成筒部36とは相互に液密に嵌合して、囲成周壁Eを形成している。
前記囲成周壁Eと前記基壁部24と前記隔壁部42とで、周囲から区画された空間Rが形成されている。空間Rは、前記流路Pを介して射出筒4に連通している。
前記隔壁部42の後面には、前記第2囲成筒部44の内方に位置させて、前記仕切り壁38の突出箇所に対応する嵌合溝部47を形成している。嵌合溝部47内には、前記仕切り壁38の先端部が嵌着されている。これにより、前記仕切り壁38が、前述の空間Rを前方から見て、第1分室R1及び第2分室R2に区分するように設けている。
なお、仕切り壁38及び嵌合溝部47の構造は適宜変更することができる。例えば、前記隔壁部42から後方へ仕切り壁38を突設するとともに、前記基壁部24の前面に嵌合溝部47を形成してもよい。
前記第1分室R1は、前記第1貫通孔34Aを介して、また第2分室R2は、前記第2貫通孔34Bを介して、前記管部材12の基部12a側へそれぞれ連通させることが可能に設けている。
From the rear surface of the partition wall portion 42, the second enclosure cylinder portion 44 is projected rearward so as to correspond to the protrusion portion of the first enclosure cylinder portion 36. The second surrounding cylinder portion 44 and the first surrounding cylinder portion 36 are liquid-tightly fitted to each other to form the surrounding peripheral wall E.
A space R partitioned from the surroundings is formed by the surrounding peripheral wall E, the base wall portion 24, and the partition wall portion 42. The space R communicates with the injection cylinder 4 via the flow path P.
On the rear surface of the partition wall portion 42, a fitting groove portion 47 corresponding to a protruding portion of the partition wall 38 is formed so as to be located inside the second enclosure cylinder portion 44. The tip of the partition wall 38 is fitted in the fitting groove 47. As a result, the partition wall 38 is provided so as to divide the above-mentioned space R into a first branch chamber R1 and a second branch chamber R2 when viewed from the front.
The structures of the partition wall 38 and the fitting groove 47 can be changed as appropriate. For example, the partition wall 38 may be projected rearward from the partition wall portion 42, and the fitting groove portion 47 may be formed on the front surface of the base wall portion 24.
The first branch chamber R1 can communicate with the first through hole 34A, and the second branch chamber R2 can communicate with the base portion 12a side of the pipe member 12 via the second through hole 34B. It is provided.

前記隔壁部42には、前記第1分室R1の前方に位置させて一つの柱状部48が、また前記第2分室R2の前方に位置させて二つの柱状部48が、それぞれ一体的に設けられている。
前記柱状部48は、吐出チップ50を取り付けるための部位である。
各柱状部48の周囲には、深溝状の切溝49が穿設されている。図示例の切溝49は前方から見て円形に形成されている。
なお、各切溝49の溝底から第1分室R1又は第2分室R2に亘って開通する連通路Nが前記隔壁部42に穿設されている。
The partition wall 42 is integrally provided with one columnar portion 48 located in front of the first branch chamber R1 and two columnar portions 48 located in front of the second branch chamber R2. ing.
The columnar portion 48 is a portion for attaching the discharge tip 50.
A deep groove-shaped incision 49 is formed around each columnar portion 48. The notch 49 in the illustrated example is formed in a circular shape when viewed from the front.
A communication passage N that opens from the bottom of each cut groove 49 to the first branch chamber R1 or the second branch chamber R2 is bored in the partition wall portion 42.

前記吐出チップ50は、図示例において、嵌着筒部52の前端に、内向きのフランジ状壁53を付設してなる。このフランジ状壁53のフランジ孔として吐出孔54が開口されている。
前記嵌着筒部52は、液体が流れるための間隙を存して、前記切溝49内に嵌挿されている。
前記フランジ状壁53と柱状部48の前面との間には、従来公知のスピン機構Sが形成されている。これにより、前記連通路Nを通ってスピン機構S内に入った液体を回転させ、前記吐出孔54から円錐状の霧として吐出するように構成している。
In the illustrated example, the discharge tip 50 is provided with an inward-facing flange-shaped wall 53 attached to the front end of the fitting cylinder portion 52. A discharge hole 54 is opened as a flange hole of the flange-shaped wall 53.
The fitting cylinder portion 52 is fitted and inserted into the cut groove 49 with a gap for flowing a liquid.
A conventionally known spin mechanism S is formed between the flange-shaped wall 53 and the front surface of the columnar portion 48. As a result, the liquid that has entered the spin mechanism S through the communication passage N is rotated and discharged as a conical mist from the discharge hole 54.

図示例では、第2分室R2の前方に配置した2個の吐出チップ50を、図4に示す如く、相互に一体に成形したチップペア51に形成している。
この構成では、各吐出チップ50のフランジ状壁53同士が連結壁部56を介して一体に連結されている。
図示例では、前記連結壁部56の後面側に一対の切割り58を穿設している。これにより、図7に示す如く、連結壁部56を撓めることで、チップペアを屈曲変形させ、前記吐出孔54の中心線Cの方向を調整することを容易としている。
In the illustrated example, the two ejection tips 50 arranged in front of the second branch chamber R2 are formed in a chip pair 51 integrally molded with each other as shown in FIG.
In this configuration, the flange-shaped walls 53 of the discharge tips 50 are integrally connected to each other via the connecting wall portion 56.
In the illustrated example, a pair of cuts 58 are bored on the rear surface side of the connecting wall portion 56. As a result, as shown in FIG. 7, by bending the connecting wall portion 56, the tip pair is bent and deformed, and the direction of the center line C of the discharge hole 54 can be easily adjusted.

前記発泡部材60は、図3に示す如く、前記隔壁部42の前面を覆う覆合板部62を有する。この覆合板部62は、前記カバー周壁46の前部内に嵌合されている。
図示例では、図2に示す如く、前記覆合板部62の周端部に係合鉤部63を形成しており、前記環状凹部43内に係止させている。
前記覆合板部62には、図3に示すように、左右一対の肉薄線72が形成されている。
これら肉薄線72は、覆合板部62の上下方向の中間部に位置させて、覆合板部62の左右両端から中心側へ延びている。
図示例の肉薄線72は、覆合板部62の前面に深溝を穿設することにより形成している。
一対の肉薄線72を形成することにより、前記スチップペア51の屈曲変形に対応して、覆合板部62の上半部を変位させることが可能となる。
As shown in FIG. 3, the foam member 60 has a plywood portion 62 that covers the front surface of the partition wall portion 42. The plywood portion 62 is fitted in the front portion of the cover peripheral wall 46.
In the illustrated example, as shown in FIG. 2, an engaging hook portion 63 is formed at the peripheral end portion of the plywood portion 62, and is locked in the annular recess 43.
As shown in FIG. 3, a pair of left and right thin lines 72 are formed on the plywood portion 62.
These thin wires 72 are located in the middle portion in the vertical direction of the plywood portion 62, and extend from the left and right ends of the plywood portion 62 toward the center side.
The thin wire 72 of the illustrated example is formed by forming a deep groove in the front surface of the plywood portion 62.
By forming the pair of thin wires 72, it is possible to displace the upper half of the plywood portion 62 in response to the bending deformation of the spip pair 51.

前記覆合板部62には、前記吐出チップ50に対応する箇所に開口した吐出チップ50と同数の窓孔64を形成している。
図示例の窓孔64は、前記吐出チップ50のフランジ状壁53が外部に露出されるように開口されるように形成している。
前記窓孔64の孔縁からは、発泡筒66を外方へ突設させている。発泡筒66と前記吐出孔54とで泡吐出口Aが形成されている。
また前記発泡部材60には、前記発泡筒66の根元付近に外気を供給するための外気導入孔68が形成されている。図示の外気導入孔68は、覆合板部62の前面側から窓孔64の内周面へ開通している。好適な図示例では、複数の外気導入孔68を前記窓孔64の内周面に一定の間隔で開口させている。これらの構造は適宜変更することができる。
前記構成によれば、吐出孔54から円錐状に吐出された霧状の液体は、前記発泡筒66の内面に衝突し、前記外気導入孔68から供給される外気と混ざり合って泡となり、前方へ吐出される。
The plywood portion 62 is formed with the same number of window holes 64 as the discharge chips 50 opened at locations corresponding to the discharge chips 50.
The window hole 64 of the illustrated example is formed so that the flange-shaped wall 53 of the discharge tip 50 is opened so as to be exposed to the outside.
A foam cylinder 66 is projected outward from the edge of the window hole 64. A foam discharge port A is formed by the foam cylinder 66 and the discharge hole 54.
Further, the foaming member 60 is formed with an outside air introduction hole 68 for supplying outside air near the root of the foaming cylinder 66. The illustrated outside air introduction hole 68 is opened from the front surface side of the plywood portion 62 to the inner peripheral surface of the window hole 64. In a preferred illustrated example, a plurality of outside air introduction holes 68 are opened on the inner peripheral surface of the window hole 64 at regular intervals. These structures can be modified as appropriate.
According to the above configuration, the mist-like liquid discharged in a conical shape from the discharge hole 54 collides with the inner surface of the foam cylinder 66 and mixes with the outside air supplied from the outside air introduction hole 68 to form bubbles, which is forward. Is discharged to.

本実施形態では、前記泡吐出口Aとして、前記第1分室R1と連続する単一の第1泡吐出口A1、及び、第2分室R2と連続する一対の第2泡吐出口A2を形成している。
この構成では、広角に泡を吐出するときには、一対の第2泡吐出口A2から泡を吐出するモードを選択するとよい。
この構成によれば、前述の従来技術のように、単一の操作でより広い面に吹き付けるために、“吐出孔から霧状に吐出された液体が発泡筒の内面に当たる度合いを減らし、より広い角度で吐出されるような構成”とする必要がない。従って、泡質を低下させることなく、広角に泡を吐出させることができる。
本実施形態では、前記発泡ノズル20の前面に、図3に示すように、任意の一方向Xに相互に隣接させて前記一対の第2泡吐出口A2を配置している。
図示例においては、図3に示すモードにおいて、前記一対の第2泡吐出口A2は、四角形状の発泡ノズル20の前面上半部に横方向に隣接させて配置されている。他方、単一の第1泡吐出口A1は、発泡ノズル20の前面下半部の左右方向中間部に位置している。
In the present embodiment, as the bubble discharge port A, a single first bubble discharge port A1 continuous with the first branch chamber R1 and a pair of second bubble discharge ports A2 continuous with the second branch chamber R2 are formed. ing.
In this configuration, when discharging bubbles in a wide angle, it is preferable to select a mode in which bubbles are discharged from the pair of second bubble discharge ports A2.
According to this configuration, as in the prior art described above, in order to spray on a wider surface with a single operation, "the liquid discharged in the form of mist from the discharge hole reduces the degree of contact with the inner surface of the foam cylinder, and is wider. It is not necessary to have a configuration that discharges at an angle. Therefore, it is possible to discharge bubbles in a wide angle without deteriorating the foam quality.
In the present embodiment, as shown in FIG. 3, the pair of second foam discharge ports A2 are arranged on the front surface of the foam nozzle 20 so as to be adjacent to each other in any one direction X.
In the illustrated example, in the mode shown in FIG. 3, the pair of second foam discharge ports A2 are arranged so as to be laterally adjacent to the upper half of the front surface of the square foam nozzle 20. On the other hand, the single first foam discharge port A1 is located in the middle portion in the left-right direction of the lower half of the front surface of the foam nozzle 20.

前記構成において、図6を用いて、本発明の泡吐出部構造の作用を説明する。
(1)図6(A)に示す状態では、発泡ノズル20の第1貫通孔34A及び第2貫通孔34Bは、前方から見て、主連通溝18A及び副連通溝18Bのいずれとも重なり合っていない。すなわち、両貫通孔は各連通溝と連通していない。
これにより、“いずれの泡吐出口からも泡が吐出されない閉鎖モード”が実現される。
(2)図6(B)に示す状態では、発泡ノズル20の第2貫通孔34Bは、副連通溝18Bと重なり合っているが、第1貫通孔34Aは主連通溝18Aと重なり合っていない。
従って、同図に太線で矢示する通り、液体は、副連通溝18B及び第2貫通孔34B、第2分室R2を順次通過して、第2泡吐出口A2の吐出孔54に到達する。
これにより、“複数の第2泡吐出口A2から泡が吐出されるモード”が実現される。
(3)図6(C)に示す状態では、発泡ノズル20の第1貫通孔34Aは副連通溝18Bと重なり合っており、また第2貫通孔34Bは主連通溝18Aと重なり合っている。
従って、同図に太線で矢示する通り、液体は、副連通溝18B及び第1貫通孔34A、第1分室R1を順次通過して、第1泡吐出口A1の吐出孔54に到達するとともに、主連通溝18A及び第2貫通孔34B、第2分室R2を順次通過して、第2泡吐出口A2の吐出孔54に到達する。
これにより、“単数の第1泡吐出口A1の双方から泡が吐出されるモード”が実現される。
(4)図6(D)に示す状態では、発泡ノズル20の第1貫通孔34Aは、主連通溝18Aと重なり合っているが、また第2貫通孔34Bは、副連通溝18Bと重なり合っていない。
従って、同図に太線で矢示する通り、液体は、主連通溝18A及び第1貫通孔34A、第1分室R1を順次通過して、第1泡吐出口A1の吐出孔54に到達する。
これにより、“単数の第1泡吐出口A1から泡が吐出されるモード”が実現される。
In the above configuration, the operation of the foam discharge portion structure of the present invention will be described with reference to FIG.
(1) In the state shown in FIG. 6 (A), the first through hole 34A and the second through hole 34B of the foam nozzle 20 do not overlap with either the main communication groove 18A or the sub communication groove 18B when viewed from the front. .. That is, both through holes do not communicate with each communication groove.
As a result, a "closed mode in which bubbles are not discharged from any bubble discharge port" is realized.
(2) In the state shown in FIG. 6B, the second through hole 34B of the foam nozzle 20 overlaps the sub-communication groove 18B, but the first through hole 34A does not overlap the main communication groove 18A.
Therefore, as indicated by the thick line in the figure, the liquid sequentially passes through the sub-communication groove 18B, the second through hole 34B, and the second branch chamber R2, and reaches the discharge hole 54 of the second bubble discharge port A2.
As a result, "a mode in which bubbles are discharged from a plurality of second bubble discharge ports A2" is realized.
(3) In the state shown in FIG. 6C, the first through hole 34A of the foam nozzle 20 overlaps the sub-communication groove 18B, and the second through hole 34B overlaps the main communication groove 18A.
Therefore, as indicated by the thick line in the figure, the liquid passes through the sub-communication groove 18B, the first through hole 34A, and the first branch chamber R1 in that order, and reaches the discharge hole 54 of the first bubble discharge port A1. , The main communication groove 18A, the second through hole 34B, and the second branch chamber R2 sequentially pass through, and reach the discharge hole 54 of the second bubble discharge port A2.
As a result, "a mode in which bubbles are discharged from both of the single first bubble discharge ports A1" is realized.
(4) In the state shown in FIG. 6 (D), the first through hole 34A of the foam nozzle 20 overlaps the main communication groove 18A, but the second through hole 34B does not overlap the sub communication groove 18B. ..
Therefore, as indicated by the thick line in the figure, the liquid sequentially passes through the main communication groove 18A, the first through hole 34A, and the first branch chamber R1 and reaches the discharge hole 54 of the first bubble discharge port A1.
As a result, "a mode in which bubbles are discharged from a single first bubble discharge port A1" is realized.

次に前記スチップペア51の作用を、図7を用いて説明する。図7は、図4と同じ方向から見た図であるが、連結壁部58及び切割り58の作用を強調して描かれている。
前述の構成によれば、一対の吐出チップ50を連結する連結壁部56の後面側に切割り58を穿設しているため、この切割り58が狭まることにより、連結壁部56が前方へ撓み変形することが容易となる。
その結果として、各吐出チップ50の吐出孔54の中心線Cが、管部材12の軸線Оに対して、発泡ノズル20から遠くなるほど離れる。このようにすることで、次のような利点がある。
第1に、一対の吐出孔54から円錐状に吐出される霧状の液体は、各発泡筒66の左右方向外側でより多く発泡筒内面に衝突する。故に広角な方向へ泡を十分に供給することができる。
第2に、図7に一点鎖線で示す、一対の第2泡吐出口A1からの泡の流れが重なり合うオーバーラップ領域Lを縮小又は解消することができ、より好適に泡を放出することができる。
Next, the operation of the chip pair 51 will be described with reference to FIG. FIG. 7 is a view viewed from the same direction as in FIG. 4, but is drawn with emphasis on the actions of the connecting wall portion 58 and the cutting 58.
According to the above-described configuration, since the cut portion 58 is bored on the rear surface side of the connecting wall portion 56 that connects the pair of discharge tips 50, the connecting wall portion 56 moves forward due to the narrowing of the cut portion 58. It becomes easy to bend and deform.
As a result, the center line C of the discharge hole 54 of each discharge tip 50 is separated from the foam nozzle 20 with respect to the axis О of the pipe member 12. By doing so, there are the following advantages.
First, the mist-like liquid discharged in a conical shape from the pair of discharge holes 54 collides with the inner surface of the foam cylinder more on the outer side in the left-right direction of each foam cylinder 66. Therefore, it is possible to sufficiently supply bubbles in a wide angle direction.
Secondly, the overlapping region L in which the bubbles flowing from the pair of second bubble discharge ports A1 overlap, which is shown by the alternate long and short dash line in FIG. 7, can be reduced or eliminated, and the bubbles can be discharged more preferably. ..

1…噴射装置 2…装着キャップ 3…主筒 3a…内筒部 3b…外筒部
4…射出筒 5…シリンダ 6…ピストン 7…トリガー 8…カバー部材
10…泡吐出部構造 12…管部材 12a…基部(小径管部)
12b…先部(大径管部)
13…外向きフランジ 16…軸部
18A…主連通溝 18B…副連通溝
20…発泡ノズル 22…基部材 24…基壁部 26…外周壁 28…連結筒部
29…抜止め用リブ 30…嵌合筒部 32…連通凹部
34A…第1貫通孔 34B…第2貫通孔
36…第1囲成筒部 36a…辺部分 36b…コーナー部分
38…仕切り壁 38a…曲がり部 38b…直線部
40…区画体 42…隔壁部 43…環状凹部 44…第2囲成筒部 45…連結片
46…カバー周壁 47…嵌合溝部 48…柱状部 49…切溝
50…吐出チップ 51…チップペア 52…嵌着筒部
53…フランジ状壁 54…吐出孔 56…連結壁部 58…切割り
60…発泡部材 62…覆合板部 63…係合鈎部 64…窓孔 66…発泡筒
68…外気導入孔 72…肉薄線
A…泡吐出口 A1…第1泡吐出口 A2…第2泡吐出口 C…中心線
E…囲成周壁 L…オーバーラップ領域 N…連通路 O…軸方向 P…流路
R…空間 R1…第1分室 R2…第2分室
S…スピン機構
V1…第1逆止弁 V2…第2逆止弁

1 ... Injection device 2 ... Mounting cap 3 ... Main cylinder 3a ... Inner cylinder 3b ... Outer cylinder 4 ... Injection cylinder 5 ... Cylinder 6 ... Piston 7 ... Trigger 8 ... Cover member
10 ... Foam discharge part structure 12 ... Pipe member 12a ... Base (small diameter pipe part)
12b ... Tip (large diameter pipe)
13 ... Outward flange 16 ... Shaft 18A ... Main communication groove 18B ... Sub communication groove 20 ... Foam nozzle 22 ... Base member 24 ... Base wall part 26 ... Outer wall 28 ... Connecting cylinder part
29 ... Retaining rib 30 ... Fitting cylinder 32 ... Communication recess 34A ... First through hole 34B ... Second through hole
36 ... 1st enclosure cylinder part 36a ... Side part 36b ... Corner part 38 ... Partition wall 38a ... Bent part 38b ... Straight part
40 ... compartment 42 ... partition wall 43 ... annular recess 44 ... second enclosure cylinder 45 ... connecting piece 46 ... cover peripheral wall 47 ... fitting groove 48 ... columnar 49 ... cutting groove 50 ... discharge tip 51 ... chip pair 52 ... Fitting cylinder part 53 ... Flange-shaped wall 54 ... Discharge hole 56 ... Connecting wall part 58 ... Cutting
60 ... Foam member 62 ... Plywood part 63 ... Engagement hook part 64 ... Window hole 66 ... Foam cylinder 68 ... Outside air introduction hole 72 ... Thin wire A ... Bubble discharge port A1 ... First bubble discharge port A2 ... Second foam discharge Exit C ... Center line
E ... Surrounding peripheral wall L ... Overlapping area N ... Continuous passage O ... Axial direction P ... Flow path R ... Space R1 ... First branch room R2 ... Second branch room S ... Spin mechanism
V1 ... 1st check valve V2 ... 2nd check valve

Claims (3)

発泡性を有する液体を泡状にして吐出する噴射装置の液体射出経路の下流側に装備された管部材(12)と、
この管部材(12)の先部(12b)に回転可能に取り付けられた発泡ノズル(20)とからなり、
発泡ノズル(20)は、前記管部材(12)の軸方向(О)に直交する基壁部(24)を有する基部材(22)と、
基壁部(24)と向かい合う隔壁部(42)を有し、隔壁部(42)と基壁部(24)との間に周囲から区画された空間(R)を画成する区画体(40)と、
前記隔壁部(42)の外側に設けられ、前記空間(R)を経由して前記管部材(12)に連通する吐出孔(54)を有し、この吐出孔(54)から霧状の液体を吐出する吐出チップ(50)と、
吐出チップ(50)の外側に配置された発泡筒(66)を有する発泡部材(60)と
を具備し、かつ前記吐出孔(54)と発泡筒(66)とで泡吐出口(A)を形成しており、
前記管部材(12)に対する発泡ノズル(20)の回転操作により、管部材(12)の内部から前記空間(R)に至る流路(P)の開閉を可能とした噴射装置の泡吐出部構造において、
前記隔壁部(42)と基壁部(24)との間に、前記管部材(12)の軸方向(О)から見て、前記空間(R)を、第1分室(R1)と第2分室(R2)とに区分する仕切り壁(38)を形成し、
前記基壁部(24)に、前記管部材(12)を第1分室(R1)に連通させる第1貫通孔(34A)と、前記管部材(12)を第2分室(R2)に連通させる第2貫通孔(34B)とをそれぞれ形成するとともに、
前記泡吐出口(A)として、前記第1分室(R1)に通ずる単一の第1泡吐出口(A1)と、前記第2分室(R2)に通ずる複数の第2泡吐出口(A2)とを形成したことを特徴とする、
噴射装置の泡吐出部構造。
A pipe member (12) equipped on the downstream side of the liquid injection path of the injection device that ejects the effervescent liquid in the form of bubbles, and
It is composed of a foam nozzle (20) rotatably attached to the tip (12b) of the pipe member (12).
The foam nozzle (20) includes a base member (22) having a base wall portion (24) orthogonal to the axial direction (О) of the pipe member (12).
A partition body (40) having a partition wall portion (42) facing the base wall portion (24) and defining a space (R) partitioned from the surroundings between the partition wall portion (42) and the base wall portion (24). )When,
It has a discharge hole (54) provided outside the partition wall portion (42) and communicates with the pipe member (12) via the space (R), and a mist-like liquid is provided from the discharge hole (54). Discharge tip (50) that discharges
A foam member (60) having a foam cylinder (66) arranged outside the discharge tip (50) is provided, and the foam discharge port (A) is provided by the discharge hole (54) and the foam cylinder (66). Forming
A foam discharge portion structure of an injection device that enables opening and closing of a flow path (P) from the inside of the pipe member (12) to the space (R) by rotating the foam nozzle (20) with respect to the pipe member (12). In
Between the partition wall portion (42) and the base wall portion (24), the space (R) is defined as the first branch chamber (R1) and the second chamber (R1) when viewed from the axial direction (О) of the pipe member (12). A partition wall (38) that separates the branch room (R2) is formed.
The base wall portion (24) has a first through hole (34A) for communicating the pipe member (12) with the first branch chamber (R1) and the pipe member (12) for communicating with the second branch chamber (R2). Along with forming the second through hole (34B) respectively,
As the foam discharge port (A), a single first bubble discharge port (A1) leading to the first branch chamber (R1) and a plurality of second bubble discharge ports (A2) leading to the second branch chamber (R2). Characterized by the formation of
Foam discharge part structure of the injection device.
前記管部材(12)は、前記先部(12b)の内側に、管部材(12)と同心状に支承させた軸部(16)を有し、
軸部(16)を前記基壁部(24)から突設する嵌合筒部(30)内に相対的に回転可能に嵌合させ、
前記嵌合筒部(30)の内周面に前記管部材(12)の基部(12a)側と連続する連通凹部(32)を形成するとともに、前記軸部(16)の外周面に、周方向に離間させて、主連通溝(18A)及び副連通溝(18B)を形成しており、
これら主連通溝(18A)及び副連通溝(18B)は、管部材(12)の管径方向から見て前記連通凹部(32)と重なるように配置されており、
かつ、発泡ノズル(20)を特定の角度位置に回転させたときに、前記主連通溝(18A)及び副連通溝(18B)の一方が第1分室(R1)へ、また他方が第2分室(R2)へそれぞれ連続するように設けたことを特徴とする請求項1に記載の噴射装置の泡吐出部構造。
The pipe member (12) has a shaft portion (16) concentrically supported with the pipe member (12) inside the tip portion (12b).
The shaft portion (16) is fitted into the fitting cylinder portion (30) projecting from the base wall portion (24) so as to be relatively rotatable.
A communication recess (32) continuous with the base portion (12a) side of the pipe member (12) is formed on the inner peripheral surface of the fitting cylinder portion (30), and the circumference is formed on the outer peripheral surface of the shaft portion (16). The main communication groove (18A) and the sub communication groove (18B) are formed so as to be separated in the direction.
The main communication groove (18A) and the sub communication groove (18B) are arranged so as to overlap the communication recess (32) when viewed from the pipe radial direction of the pipe member (12).
When the foam nozzle (20) is rotated to a specific angle position, one of the main communication groove (18A) and the sub-communication groove (18B) goes to the first branch chamber (R1), and the other becomes the second branch chamber. The foam discharge portion structure of the injection device according to claim 1, wherein each of the injection devices is provided so as to be continuous with (R2).
前記管部材(12)の軸方向(О)から見て、第2分室(R2)が第1分室(R1)より広くなるように、前記仕切り壁(38)を形成したことを特徴とする、
請求項1又は請求項2に記載の噴射装置の泡吐出部構造。
The partition wall (38) is formed so that the second branch chamber (R2) is wider than the first branch chamber (R1) when viewed from the axial direction (О) of the pipe member (12).
The foam discharge portion structure of the injection device according to claim 1 or 2.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011245435A (en) * 2010-05-28 2011-12-08 Canyon Corp Trigger sprayer
JP2017213523A (en) * 2016-05-31 2017-12-07 株式会社吉野工業所 Trigger-type spray
JP2019171338A (en) * 2018-03-29 2019-10-10 株式会社吉野工業所 Trigger type liquid ejection device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011245435A (en) * 2010-05-28 2011-12-08 Canyon Corp Trigger sprayer
JP2017213523A (en) * 2016-05-31 2017-12-07 株式会社吉野工業所 Trigger-type spray
JP2019171338A (en) * 2018-03-29 2019-10-10 株式会社吉野工業所 Trigger type liquid ejection device

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