JP7401346B2 - Foam discharge part structure of the injection device - Google Patents
Foam discharge part structure of the injection device Download PDFInfo
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- JP7401346B2 JP7401346B2 JP2020034333A JP2020034333A JP7401346B2 JP 7401346 B2 JP7401346 B2 JP 7401346B2 JP 2020034333 A JP2020034333 A JP 2020034333A JP 2020034333 A JP2020034333 A JP 2020034333A JP 7401346 B2 JP7401346 B2 JP 7401346B2
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- 239000006260 foam Substances 0.000 title claims description 107
- 238000002347 injection Methods 0.000 title claims description 38
- 239000007924 injection Substances 0.000 title claims description 38
- 238000005187 foaming Methods 0.000 claims description 48
- 238000005192 partition Methods 0.000 claims description 48
- 239000007788 liquid Substances 0.000 claims description 27
- 239000003595 mist Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 description 18
- 239000011120 plywood Substances 0.000 description 11
- 239000007921 spray Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 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 discharge 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, a pump type injection device is attached to a container housing a foaming liquid such as a detergent or a hair conditioner, and is configured to suck up the liquid in the container and forcefully feed it from an injection tube. BACKGROUND ART A device is known in which a foam discharge portion structure attached to the tip of a cylinder is used to atomize liquid, cause the foam to protrude outward (Patent Document 1).
The foam discharge part structure includes a tube member (spin element) in which the base of the tube wall is fitted into the injection tube, and a shaft portion is supported within the tip of the tube wall, and the base of the tube wall is rotatable. and a foaming nozzle attached to the foaming nozzle, and a discharge tip rotatably assembled to the shaft portion is integrally assembled to the foaming nozzle.
This discharge tip has an inward flange attached to the tip of a fitting cylinder fitted to the circumferential surface of the shaft, and a spin mechanism is formed between the inward flange and the tip surface of the shaft. , a foam cylinder protrudes outward from around the discharge hole which is the flange hole of the inward flange.
By doing so, the liquid flowing into the spin mechanism from the injection tube is injected from the discharge hole as a conical mist, and this mist collides with the foaming tube and foams.
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 injecting a foaming liquid onto a target surface, it may be desired to spray a wider surface in one operation.
In the device of Patent Document 1, in order to spray a wider surface with a single operation, the degree to which the liquid discharged in a mist form from the discharge hole hits the inner surface of the foam tube is reduced, and the liquid is discharged at a wider angle. It needs to be configured.
However, with such a configuration, there is a problem that the amount of air mixed with the atomized liquid is reduced accordingly, the foaming of the liquid is weakened, and the quality of the foam may be deteriorated.
On the other hand, depending on the application, there are situations where it is not necessary to spray on a large 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 discharge part structure that allows selection of an injection mode from a single foam discharge port and a jet mode from a plurality of foam discharge ports, and allows foam to be sprayed over a wide angle without degrading 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、
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、
前記基壁部２４と向かい合う隔壁部４２を有し、この隔壁部４２と前記基壁部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、
前記吐出チップ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と前記発泡筒６６とで泡吐出口Ａを形成しており、
前記管部材１２に対する前記発泡ノズル２０の回転操作により、前記管部材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と前記基壁部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を前記第１分室Ｒ１に連通させる第１貫通孔３４Ａと、前記管部材１２を前記第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とを形成しており、
前記管部材１２は、前記先部１２ｂの内側に、前記管部材１２と同心状に支承させた軸部１６を有し、
前記軸部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、前記管部材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、前記発泡ノズル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及び前記副連通溝１８Ｂの一方が前記第１分室Ｒ１へ、また他方が前記第２分室Ｒ２へそれぞれ連続するように設けた。
The first means includes a pipe member 12 installed on the downstream side of a liquid ejection path of an injection device that ejects foamed liquid in the form of foam;
It consists of a foaming nozzle 20 rotatably attached to the tip 12b of this tube member 12,
The foaming nozzle 20 includes a base member 22 having a base wall portion 24 orthogonal to the axial direction O of the tube member 12;
a partition body 40 having a partition wall 42 facing the base wall 24 and defining a space R partitioned from the surroundings between the partition wall 42 and the base wall 24;
a discharge tip 50 that is provided outside the partition wall 42 and has a discharge hole 54 that communicates with the tube member 12 via the space R, and that discharges a mist of liquid from the discharge hole 54;
a foaming member 60 having a foaming tube 66 disposed outside the discharge tip 50 , and the discharge hole 54 and the foaming tube 66 form a foam discharge port A;
In the foam discharge part structure of the injection device, which allows opening and closing of the flow path P from the inside of the tube member 12 to the space R by rotating the foaming nozzle 20 with respect to the tube member 12,
A partition wall 38 that divides the space R into a first compartment R1 and a second compartment R2 when viewed from the axial direction O of the tube member 12 is formed between the partition wall part 42 and the base wall part 24. death,
A first through hole 34A that communicates the tube member 12 with the first compartment R1 and a second through hole 34B that communicates the tube member 12 with the second compartment R2 are formed in the base wall portion 24, respectively. With,
As the foam discharge port A, a single first foam discharge port A1 communicating with the first compartment R1 and a plurality of second foam discharge ports A2 communicating with the second compartment R2 are formed,
The tube member 12 has a shaft portion 16 supported concentrically with the tube member 12 inside the tip portion 12b,
The shaft portion 16 is relatively rotatably fitted into a fitting cylinder portion 30 protruding from the base wall portion 24,
A communication recess 32 that is continuous with the base 12a side of the tube member 12 is formed on the inner circumferential surface of the fitting cylinder portion 30, and a main communication groove 18A is formed on the outer circumferential surface of the shaft portion 16 at a distance in the circumferential direction. and a sub-communication groove 18B,
These main communication grooves 18A and sub-communication grooves 18B are arranged so as to overlap with the communication recess 32 when viewed from the radial direction of the tube member 12,
When the foaming nozzle 20 is rotated to a specific angular position, one of the main communication groove 18A and the sub-communication groove 18B is connected to the first compartment R1, and the other is connected to the second compartment R2. It was set up so that
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。
また本手段では、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。
As shown in FIG. 1, this means includes a pipe member 12 installed on the downstream side of the liquid injection path (in the illustrated example, the injection cylinder 4) of the injection device, and a pipe member 12 rotatably attached to the tip 12b of the pipe member 12. The present disclosure discloses a foam discharge section structure comprising a foaming nozzle 20.
The foaming nozzle 20 includes a base member 22 having a base wall portion 24 orthogonal to the axial direction O of the tube member 12, and a partition wall portion 42 facing the base wall portion 24. A partitioning body 40 defining a space R partitioned from the surroundings is provided in between.
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 compartment R1 and a second compartment R2 when viewed from the axial direction O of the tube member 12. are doing.
Further, the first compartment R1 and the second compartment R2 are communicated with the tube member 12 through through holes formed in the base wall portion 24, respectively, and a single first foam discharge port is provided which communicates with the first compartment R1. A1, and a plurality of second foam discharge ports A2 communicating with the second compartment R2.
According to this structure, a mode in which foam is discharged from a single first foam discharge port A1 (see FIG. 6(D)) and a mode in which foam is discharged from a plurality of second foam discharge ports A2 (see FIG. 6(B)). ) can be used depending on the situation. When it is desired to eject foam to 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 in the quality of the foam.
In addition, in this means, as a part of the flow path P from the inside of the tube member 12 to the space R, the inner circumferential surface of the fitting cylinder portion 30 is connected to the base 12a side of the tube member 12, as shown in FIG. A communicating recess 32 is formed.
Further, a main communication groove 18A and a sub-communication groove 18B are formed on the outer circumferential surface of the shaft portion 16 so as to be spaced apart from each other in the circumferential direction.
When the foaming nozzle 20 is rotated to a specific angular position, one of the main communication groove 18A and the sub communication groove 18B, which overlap with the communication recess 32 continuous with the base 12a side of the tube member 12, flows into the first compartment R1, Moreover, the other one is provided so as to be continuous to the second compartment R2.
According to this structure, as a usage mode of the foaming nozzle 20, a mode (see FIG. 6(C)) is selected in which foam is discharged from both the single first foam discharge port A1 and the plurality of second foam discharge ports A2. This improves convenience.
第２の手段は、第１の手段を有し、かつ前記管部材１２の軸方向Оから見て、前記第２分室Ｒ２が前記第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 second means includes the first means and forms the partition wall 38 so that the second compartment R2 is wider than the first compartment R1 when viewed from the axial direction O of the tube member 12. did.
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. 6(A), when viewed from the axial direction O of the tube member 12, a second compartment R2 that is continuous with a plurality of second foam discharge ports A2 is continuous with a single foam discharge port A. The partition wall 38 is formed to be wider than the first compartment R1.
According to this structure, the foam discharge ports 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。
また第１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２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, there is a A partition wall 38 is formed to divide the space R formed into a first compartment R1 and a second compartment R2, and a single first foam outlet A1 communicating with the first compartment R1 and the second compartment Since a plurality of second foam discharge ports A2 leading to R2 are formed, the discharge mode from a single discharge port and from multiple discharge ports suitable for spraying at a wider angle can be achieved without deteriorating the foam quality. The discharge mode can be selected.
Further, according to the invention according to the first means, when the foaming nozzle 20 is rotated to a specific angular position, the main communication groove 18A and the sub communication groove overlap with the communication recess 32 continuous with the base 12a side of the tube member 12. 18B so that one side is connected to the first compartment R1 and the other side is connected to the second compartment R2, the foaming nozzle 20 can be used with a single first foam discharge port A1 and a plurality of second foam discharge ports. A mode in which bubbles are discharged from both outlets A2 can be selected, improving convenience.
According to the invention according to the second means, when viewed from the axial direction O of the tube member 12, the second compartment R2 that is continuous with the plurality of second foam discharge ports A2 is the second compartment R2 that is continuous with the single foam discharge port A. Since it is made wider than the one-part chamber R1, the foam discharge ports can be arranged without difficulty.
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 discharge part structure of an injection device according to an embodiment of the present invention, and an injection device equipped with the foam discharge part structure.
FIG. 1 shows an overall view of the injection device 1. As shown in FIG. The structure of the injection device other than the foam discharge part structure is conventionally known, and the known structure will be briefly explained first.
The injection device is for use in the mouth and neck part (not shown) of the container body, and is made up of a main cylinder (in the illustrated example, an inner cylinder part 3a and an outer cylinder part 3b) that extends in the vertical direction and is indicated by the reference numeral 3. ), and 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 is provided to protrude forward from the upper end of the main cylinder 3.
In this specification, for convenience of explanation, the right side of FIG. 1 will be referred to as "rear", the left side will be referred to as "front", and the direction orthogonal to these will be referred to as "left and right".
A cylinder 5 is located below the injection cylinder 4 and communicates with the main cylinder 3, projecting forward, and a piston 6 is fitted into the cylinder 5 so as to be movable back and forth. An upper end portion of a trigger 7, which is swingable in the front-rear direction, is pivotally attached to the front portion of the injection barrel 4. This trigger 7 is urged forward by an urging means, and the front part of the piston is linked to this trigger 7.
A first check valve V1 and a second check valve V2 are arranged inside the main cylinder 3, and when the trigger 7 is operated, the liquid inside the container body is transferred to the cylinder via the first check valve V1. The injection cylinder 5 is sucked into the cylinder 5, and the injection cylinder 5 is force-fed from the inside of the cylinder 5 to the injection cylinder 4 side via the second check valve V2. 8 is 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 tube 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 section structure 10 is used by being attached to the tip (front end) side of the injection tube 4.
The foam discharge section structure 10 includes a tube member 12 and a foaming nozzle 20, as shown in FIG.
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 tube member 12 is a member that connects the injection tube 4 and the foaming nozzle 20 and allows the inside of the injection tube 4 to communicate with the foaming nozzle 20.
The base portion 12a of the tube member 12 is fitted into the front portion of the injection tube 4, and the tip portion 12b of the tube member 12 is connected to the rear portion of the foaming nozzle 20.
In the illustrated example, as shown in FIG. 2, the base portion 12a is formed into a small diameter tube portion, and an outward flange 13 is attached to the front end of the small diameter tube portion. A large-diameter pipe section protrudes forward. The illustrated large diameter tube section is offset downwardly with respect to the small diameter tube section.
A shaft portion 16 is supported within the tip portion 12b concentrically with respect to the tip portion.
Although the illustrated shaft portion 16 is formed in a cylindrical shape with a closed front end, it may also be formed in a round bar shape.
A main communication groove 18A is formed in the front part of the outer peripheral surface of the shaft part 16, located in a part of the shaft part in the circumferential direction (in the illustrated example, the upper surface of the shaft part 16 in the state of FIG. 1). ing.
This main communication groove 18A extends in the axial direction O of the tube member 12, and overlaps with a communication recess 32 formed in the fitting cylinder portion 30, which will be described later, so that the main communication groove 18A is connected from the inside of the tube member 12 to the inside of the foaming nozzle 20. The flow path P leading thereto is formed so as to be open.
In this preferred embodiment, a 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 shown in FIG. 1). This sub-communication groove 18B may have the same structure as the main communication groove 18A except for the position where it is formed.
Note that 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 foaming nozzle 20 includes a base member 22, a partition 40, a discharge tip 50, and a foaming 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 that is perpendicular to the axis O of the tube member 12 . In this embodiment, the base wall portion 24 is formed in a rectangular shape (approximately square in the illustrated example) when viewed from the front, but the shape 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。
An outer peripheral wall 26 is provided to protrude 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 provided to protrude rearward in the form of a double cylinder.
The connecting tube portion 28 and the fitting tube portion 30 are cylindrical, and the connecting tube portion 28 is attached to the outer surface of the tip portion 12b of the tube member 12, and the fitting tube portion 30 is attached to the outer surface of the shaft portion 16. They are rotatably fitted to each other.
A retaining rib 29 for preventing detachment from the tip portion 12b is provided around the inner surface of the connecting cylinder portion 28.
A communication recess 32 that forms 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, a first surrounding cylindrical portion 36 is provided to protrude forward from near the peripheral end of the front surface of the base wall portion 24. As shown in FIG.
In the illustrated example, the first enclosing cylinder portion 36 has a substantially rectangular outline when viewed from the front, as shown in FIG. Specifically, the first enclosing cylinder portion 36 is formed of side portions 36a corresponding to each side of the substantially rectangular shape, and rounded corner portions 36b located near the corners of the rectangular shape. . However, its 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 disposed inside the first surrounding cylinder part 36 and projects forward from the front surface of the base wall part 24.
The protruding length of the partition wall 38 is set lower than the protruding length of the first enclosing cylindrical portion 36 in the preferred illustrated example. Note that the protruding length of the partition wall 38 may be equal to or greater than the protruding length of the first surrounding cylinder portion 36.
In the illustrated example, the partition wall 38 has a substantially V-shape when viewed from the front. The partition wall 38 includes a bent portion 38a located at the center of the substantially rectangular outline of the first surrounding cylinder portion 36, and two straight portions 38b extending between corner portions from this bent portion and the center portion. It is formed by.
The partition wall 38 divides the substantially rectangular base wall portion surrounded by the first surrounding cylinder portion 36 into a quarter portion (a triangular portion) and a remaining portion.
The first through hole 34A and the second through hole 34B are part of the flow path P and are arranged on both sides of the partition wall 38. In the illustrated example, the first through hole 34A is placed on the quarter side, and the second through hole 34B is placed on the remaining portion.
Moreover, the first through hole 34A and the second through hole 34B are arranged so as to be located inside the fitting cylindrical 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 degrees with the cylinder axis of the fitting cylinder part 30 as the center, as shown in FIG. Therefore, when the foaming nozzle 20 is rotated by 90 degrees, the first through hole 34A and the second through hole 34B can be connected to the main communication groove 18A and the sub communication groove 18B in sequence. are 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 partition body 40 has a partition wall 42 facing the base wall 24, and is provided with a cover peripheral wall 46 extending from the peripheral end of the partition wall 42 in the front-rear direction via a connecting piece 45. ing.
The illustrated cover peripheral wall 46 is formed into a square tube, as shown in FIG. 3, and the rear half of the cover peripheral wall 46 is fitted onto the outer surface of the outer peripheral wall 26 of the base member 22. By doing so, the partition body 40 is assembled to the base member 22 in a non-rotatable manner.
As shown in FIG. 2, an annular recess 43 for attaching a foam member 60 is formed on the outer peripheral portion of the front surface of the partition wall 42. As shown in FIG.
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。
A second enclosing cylindrical portion 44 is provided to protrude rearward from the rear surface of the partition wall portion 42 in correspondence with a protruding location of the first enclosing cylindrical portion 36 . The second enclosing cylindrical portion 44 and the first enclosing cylindrical portion 36 are fluid-tightly fitted to each other to form an enclosing peripheral wall E.
The surrounding wall E, the base wall portion 24, and the partition wall portion 42 form a space R partitioned from the surroundings. The space R communicates with the injection cylinder 4 via the flow path P.
A fitting groove portion 47 is formed on the rear surface of the partition wall portion 42 so as to be located inside the second surrounding cylinder portion 44 and correspond to a protruding portion of the partition wall 38 . The tip of the partition wall 38 is fitted into the fitting groove 47 . Thereby, the partition wall 38 is provided so as to divide the above-mentioned space R into a first compartment R1 and a second compartment R2 when viewed from the front.
Note that the structures of the partition wall 38 and the fitting groove portion 47 can be changed as appropriate. For example, the partition wall 38 may be provided to protrude rearward from the partition wall 42, and the fitting groove 47 may be formed on the front surface of the base wall 24.
The first compartment R1 can communicate with the base 12a of the tube member 12 through the first through hole 34A, and the second compartment R2 can communicate with the base 12a of the tube member 12 through the second through hole 34B. It is set up.
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 portion 42 is integrally provided with one columnar portion 48 located in front of the first compartment R1 and two columnar portions 48 located in front of the second compartment R2. ing.
The columnar portion 48 is a portion for attaching the ejection tip 50.
A deep groove-like cut groove 49 is bored around each columnar portion 48 . The kerf 49 in the illustrated example is formed in a circular shape when viewed from the front.
Note that a communication path N that is open from the bottom of each cut groove 49 to the first compartment R1 or the second compartment R2 is bored in the partition 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 formed by attaching an inward flange-like wall 53 to the front end of a fitting cylinder portion 52. A discharge hole 54 is opened as a flange hole of this flange-like wall 53.
The fitting cylindrical portion 52 is fitted into the cut groove 49 with a gap for liquid to flow therebetween.
A conventionally known spin mechanism S is formed between the flange-like wall 53 and the front surface of the columnar part 48. Thereby, the liquid that has entered the spin mechanism S through the communication path N is rotated and is discharged from the discharge hole 54 as a conical mist.
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 discharge tips 50 disposed in front of the second compartment R2 are formed into a pair of tips 51 integrally formed with each other, as shown in FIG.
In this configuration, the flange-like walls 53 of each discharge tip 50 are integrally connected to each other via the connecting wall portion 56.
In the illustrated example, a pair of cuts 58 are formed on the rear side of the connecting wall portion 56. Thereby, as shown in FIG. 7, by bending the connecting wall portion 56, the chip pair is bent and deformed, making it easy to adjust the direction of the center line C of the discharge hole 54.
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 covering plywood portion 62 that covers the front surface of the partition wall portion 42. This cover plywood portion 62 is fitted into 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 of the cover 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 cover plywood portion 62. As shown in FIG.
These thin lines 72 are located at an intermediate portion of the covering plywood section 62 in the vertical direction, and extend from both left and right ends of the covering plywood section 62 toward the center.
The thin line 72 in the illustrated example is formed by drilling a deep groove in the front surface of the cover plywood portion 62.
By forming the pair of thin lines 72, it becomes possible to displace the upper half of the covering plywood part 62 in response to the bending deformation of the chip 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 cover plywood part 62 has the same number of window holes 64 as the number of the discharge tips 50, which are opened at locations corresponding to the discharge tips 50.
The illustrated window hole 64 is formed so that the flange-like wall 53 of the ejection tip 50 is exposed to the outside.
A foam tube 66 is provided to protrude outward from the edge of the window hole 64. The foam tube 66 and the discharge hole 54 form a foam discharge port A.
Further, the foaming member 60 is formed with an outside air introduction hole 68 for supplying outside air to the vicinity of the base of the foaming cylinder 66. The illustrated outside air introduction hole 68 opens from the front side of the covered plywood part 62 to the inner peripheral surface of the window hole 64. In the preferred illustrated example, a plurality of outside air introduction holes 68 are opened at regular intervals on the inner peripheral surface of the window hole 64. These structures can be modified as appropriate.
According to the above configuration, the atomized liquid discharged in a conical shape from the discharge hole 54 collides with the inner surface of the foam tube 66, mixes with the outside air supplied from the outside air introduction hole 68, becomes bubbles, and flows 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 this embodiment, the foam discharge ports A include a single first foam discharge port A1 that is continuous with the first compartment R1, and a pair of second foam discharge ports A2 that are continuous with the second compartment R2. ing.
In this configuration, when discharging foam at a wide angle, it is preferable to select a mode in which foam is discharged from the pair of second foam discharge ports A2.
According to this configuration, in order to spray a wider surface with a single operation, unlike the prior art described above, "the degree to which the liquid discharged in a mist form from the discharge hole hits the inner surface of the foaming tube is reduced, and the There is no need for a configuration in which the liquid is discharged at an angle. Therefore, foam can be discharged over a wide angle without deteriorating foam quality.
In this embodiment, the pair of second foam discharge ports A2 are arranged adjacent to each other in any one direction X on the front surface of the foaming nozzle 20, as shown in FIG.
In the illustrated example, in the mode shown in FIG. 3, the pair of second foam discharge ports A2 are arranged horizontally adjacent to the upper front half of the square foaming nozzle 20. On the other hand, the single first foam discharge port A1 is located in the middle part of the front lower half of the foaming nozzle 20 in the left-right direction.
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 action of the foam discharge part structure of the present invention will be explained using FIG. 6.
(1) In the state shown in FIG. 6(A), the first through hole 34A and the second through hole 34B of the foaming 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 of the foam discharge ports" is realized.
(2) In the state shown in FIG. 6(B), the second through hole 34B of the foaming nozzle 20 overlaps with the auxiliary communication groove 18B, but the first through hole 34A does not overlap with 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 second through hole 34B, and the second compartment R2 in sequence, and reaches the discharge hole 54 of the second foam discharge port A2.
Thereby, "a mode in which bubbles are discharged from the plurality of second foam discharge ports A2" is realized.
(3) In the state shown in FIG. 6(C), the first through hole 34A of the foaming nozzle 20 overlaps with the auxiliary communication groove 18B, and the second through hole 34B overlaps with 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 compartment R1 in order, and reaches the discharge hole 54 of the first foam discharge port A1. , the main communication groove 18A, the second through hole 34B, and the second compartment R2 in order to reach the discharge hole 54 of the second foam discharge port A2.
Thereby, "a mode in which foam is discharged from both of the single first foam discharge port A1" is realized.
(4) In the state shown in FIG. 6(D), the first through hole 34A of the foaming nozzle 20 overlaps with the main communication groove 18A, but the second through hole 34B does not overlap with the sub communication groove 18B. .
Therefore, as indicated by the thick line in the figure, the liquid passes through the main communication groove 18A, the first through hole 34A, and the first compartment R1 in order, and reaches the discharge hole 54 of the first foam discharge port A1.
As a result, "a mode in which foam is discharged from a single first foam discharge port A1" is realized.
次に前記チップペア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５６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 explained using FIG. 7. FIG. 7 is a view seen from the same direction as FIG. 4, but the effects of the connecting wall portion 56 and the cutout 58 are emphasized.
According to the above-mentioned configuration, since the cut 58 is formed on the rear side of the connecting wall 56 that connects the pair of ejection tips 50, the narrowing of the cut 58 causes the connecting wall 56 to move forward. It becomes easy to bend and deform.
As a result, the center line C of the discharge hole 54 of each discharge tip 50 becomes farther away from the foaming nozzle 20 with respect to the axis O of the tube member 12. By doing so, there are the following advantages.
First, the atomized liquid discharged in a conical shape from the pair of discharge holes 54 collides with the inner surface of the foaming tube more on the outer side in the left-right direction of each foaming tube 66 . Therefore, bubbles can be sufficiently supplied in a wide angle direction.
Secondly, it is possible to reduce or eliminate the overlap region L, where the flow of bubbles from the pair of second bubble discharge ports A1 overlaps, which is shown by a dashed line in FIG. 7, and it is possible to discharge bubbles more appropriately. .
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 part 3b... Outer cylinder part 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 part (large diameter pipe part)
13...Outward flange 16...Shaft part 18A...Main communication groove 18B...Sub-communication groove 20...Foaming nozzle 22...Base member 24...Base wall part 26...Outer peripheral wall 28...Connecting cylinder part
29... Removal prevention rib 30... Fitting cylinder part 32... Communication recessed part 34A... First through hole 34B... Second through hole
36...First enclosing cylinder part 36a...Side part 36b...Corner part 38...Partition wall 38a...Bent part 38b...Straight line part
40... Partition body 42... Partition wall part 43... Annular recessed part 44... Second surrounding tube part 45... Connection piece 46... Cover peripheral wall 47... Fitting groove part 48... Column part 49... Cut groove 50... Discharge tip 51... Chip pair 52... Fitting cylinder part 53...Flanged wall 54...Discharge hole 56...Connecting wall part 58...Cut
60... Foaming member 62... Covering plywood part 63... Engaging hook part 64... Window hole 66... Foam tube 68... Outside air introduction hole 72... Thin line A... Foam discharge port A1... First foam discharge port A2... Second foam discharge port Exit C…center line
E...Enclosing wall L...Overlapping area N...Communication path O...Axial direction P...Flow path R...Space R1...First compartment R2...Second compartment S...Spin mechanism
V1...First check valve V2...Second check valve
Claims (2)
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、
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、
前記基壁部(２４)と向かい合う隔壁部(４２)を有し、この隔壁部(４２)と前記基壁部(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、
前記吐出チップ(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)と前記発泡筒(６６)とで泡吐出口(Ａ)を形成しており、
前記管部材(１２)に対する前記発泡ノズル(２０)の回転操作により、前記管部材(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)と前記基壁部(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)を前記第１分室(Ｒ１)に連通させる第１貫通孔(３４Ａ)と、前記管部材(１２)を前記第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)とを形成しており、
前記管部材(１２)は、前記先部(１２ｂ)の内側に、前記管部材(１２)と同心状に支承させた軸部(１６)を有し、
前記軸部(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、前記管部材(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、前記発泡ノズル(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)及び前記副連通溝(１８Ｂ)の一方が前記第１分室(Ｒ１)へ、また他方が前記第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噴射装置の泡吐出部構造。 a pipe member (12) installed on the downstream side of a liquid ejection path of an injection device that ejects foamed liquid in the form of foam;
It consists of a foaming nozzle (20) rotatably attached to the tip (12b) of this tube member (12),
The foaming nozzle (20) includes a base member (22) having a base wall portion (24) orthogonal to the axial direction (O) of the tube member (12);
A partition having a partition wall (42) facing the base wall (24) and defining a space (R) partitioned from the surroundings between the partition wall (42) and the base wall (24). body (40) and
A discharge hole (54) is provided on the outside of the partition wall (42) and communicates with the tube member (12) via the space (R), and a mist liquid is discharged from the discharge hole (54). a discharge tip (50) that discharges
a foam member (60) having a foam tube (66) disposed outside the discharge tip (50), and the discharge hole (54) and the foam tube (66) form a foam discharge port (A). ),
Foam discharge from an injection device that enables opening and closing of a flow path (P) from the inside of the tube member (12) to the space (R) by rotating the foaming nozzle (20) with respect to the tube member (12). In the structure of the
Between the partition wall portion (42) and the base wall portion (24), the space (R) is divided into a first compartment (R1) and a second compartment when viewed from the axial direction (O) of the tube member (12). Forming a partition wall (38) dividing the room into two compartments (R2),
The base wall portion (24) has a first through hole (34A) that communicates the tube member (12) with the first compartment (R1), and a first through hole (34A) that connects the tube member (12) with the second compartment (R2). While forming a second through hole (34B) for communication,
The foam discharge ports (A) include a single first foam discharge port (A1) communicating with the first compartment (R1) and a plurality of second foam discharge ports (A2) communicating with the second compartment (R2). It forms the
The tube member (12) has a shaft portion (16) supported concentrically with the tube member (12) inside the tip portion (12b),
The shaft portion (16) is relatively rotatably fitted into a fitting cylinder portion (30) protruding from the base wall portion (24);
A communicating recess (32) that is continuous with the base (12a) side of the tube member (12) is formed on the inner circumferential surface of the fitting cylinder portion (30), and a circumferential groove is formed on the outer circumferential surface of the shaft portion (16). A main communication groove (18A) and a sub-communication groove (18B) are formed spaced apart in the direction,
These main communication grooves (18A) and sub-communication grooves (18B) are arranged so as to overlap with the communication recess (32) when viewed from the radial direction of the tube member (12),
When the foaming nozzle (20) is rotated to a specific angular position, one of the main communication groove (18A) and the sub-communication groove (18B) enters the first compartment (R1), and the other enters the first compartment (R1). A foam discharge part structure of an injection device, characterized in that the foam discharge part is provided so as to be continuous with the second compartment (R2) .
請求項１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 compartment (R2) is wider than the first compartment (R1) when viewed from the axial direction (O) of the tube member (12). do,
The foam discharge part structure of the injection device according to claim 1.
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| JP2011245435A (en) | 2010-05-28 | 2011-12-08 | Canyon Corp | Trigger sprayer |
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