JP5541739B2 - Liquid ejector - Google Patents
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- JP5541739B2 JP5541739B2 JP2011042448A JP2011042448A JP5541739B2 JP 5541739 B2 JP5541739 B2 JP 5541739B2 JP 2011042448 A JP2011042448 A JP 2011042448A JP 2011042448 A JP2011042448 A JP 2011042448A JP 5541739 B2 JP5541739 B2 JP 5541739B2
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Description
本発明は、液体噴出器に関する。 The present invention relates to a liquid ejector.
この種液体噴出器として、基筒の上端部から射出筒を、基筒の下部からシリンダをそれぞれ前方へ突出した液体噴出器本体を設け、基筒の下端とシリンダとの間に吸込み弁を、またシリンダと射出筒との間に吐出弁をそれぞれ形成し、射出筒の前端にノズルキャップを嵌合するとともに、射出筒の前部から揺動可能にトリガーを垂下し、このトリガーと連係させたプランジャを上記シリンダに挿入したものが知られている（特許文献１）。 As this kind of liquid ejector, an injection cylinder is provided from the upper end of the base cylinder, and a liquid ejector main body that projects the cylinder forward from the lower part of the base cylinder, and a suction valve is provided between the lower end of the base cylinder and the cylinder, A discharge valve is formed between the cylinder and the injection cylinder, a nozzle cap is fitted to the front end of the injection cylinder, and a trigger is suspended from the front of the injection cylinder so as to be able to swing, and linked to this trigger. The thing which inserted the plunger in the said cylinder is known (patent document 1).
上記液体噴出器は、吸込み弁、吐出弁、トリガー、プランジャなどを別々に液体噴出器本体に組み込んでいるが、省パーツ化、省コスト化などの観点から、より合理的に液体噴出器本体に組み付け可能な形態が望まれている。 The above-mentioned liquid ejector incorporates a suction valve, discharge valve, trigger, plunger, etc. separately into the liquid ejector body. However, from the viewpoint of saving parts and cost, the liquid ejector body is more rationally installed. A form that can be assembled is desired.
本発明の目的は、吸込み弁・吐出弁・トリガーなどの各種部材の形態をより簡易とし、かつ簡単に組み付けることが可能な液体噴出器を提供することである。 An object of the present invention is to provide a liquid ejector in which various members such as a suction valve, a discharge valve, and a trigger can be simplified and assembled easily.
第１の手段は、
下端開口の基筒8の上部から射出筒10を前方へ突出するとともに、この射出筒10の後部内に同軸状に配置した後端閉塞の支持筒20を、基筒8内に開口した液体吸入口24と連通させ、上記射出筒10の前部下半部に割り溝14を穿設した液体噴出器本体6と、
上記基筒8の外側に取り付けた装着筒2と、
上記支持筒20の外側に嵌合させた筒形のピストン状部28と、
このピストン状部28の外面に摺動可能に嵌合されたポンプシリンダ44を含みかつ射出筒10の前部内に摺接したポンプ本体42、このポンプ本体の下面から上記割り溝14を介して一体的に垂下されポンプ本体とともに前後方向へ平行移動可能に形成したトリガー66、及びポンプシリンダ44の前方に取付けられたノズルキャップ70を有する可動部材40と、を具備し、
上記ピストン状部28の前部内に設けた吸込み用弁体32と支持筒20の前端部とで吸込み弁34を形成し、
上記ポンプシリンダ44内に、前端大径のテーパ状の弾性傘弁58付きの弁棒54を同軸状に配置して、弾性傘弁58の先端部とポンプシリンダ44の内面との間に吐出弁60を形成している。
The first means is
The injection cylinder 10 protrudes forward from the upper part of the base cylinder 8 at the lower end opening, and the support cylinder 20 with the rear end closed coaxially disposed in the rear part of the injection cylinder 10 is opened in the base cylinder 8. A liquid ejector body 6 in communication with the mouth 24 and having a slit 14 formed in the lower half of the front portion of the injection cylinder 10;
A mounting cylinder 2 attached to the outside of the base cylinder 8,
A cylindrical piston-like portion 28 fitted to the outside of the support cylinder 20, and
A pump main body 42 including a pump cylinder 44 slidably fitted on the outer surface of the piston-like portion 28 and slidably in contact with the front portion of the injection cylinder 10, is integrated with the lower surface of the pump main body via the split groove 14 And a movable member 40 having a nozzle 66 attached to the front of the pump cylinder 44, and a trigger 66 that is suspended and formed to be movable in parallel with the pump body in the front-rear direction,
A suction valve 34 is formed by the suction valve body 32 provided in the front portion of the piston-like portion 28 and the front end portion of the support cylinder 20,
Inside the pump cylinder 44, a valve rod 54 with a tapered elastic umbrella valve 58 having a large front end is coaxially arranged, and a discharge valve is provided between the tip of the elastic umbrella valve 58 and the inner surface of the pump cylinder 44. Forming 60.
本手段は、図１に示すようにトリガー66とポンプシリンダ44とを一体に設け、このポンプシリンダ44内に弾性傘弁58付きの弁棒54を設けることを提案する。これによりトリガー66及びポンプシリンダ44を一体品として液体噴出器本体6に組み付けることができる。ピストン状部28は、少なくともピストン及び吸込み弁の弁体を兼ねており、さらに好適な図示例ではエアー吸込弁の弁体としての機能を有する。故に全体として簡易な構成とすることができる。これについては後述する。 This means proposes that a trigger 66 and a pump cylinder 44 are provided integrally as shown in FIG. 1 and that a valve rod 54 with an elastic umbrella valve 58 is provided in the pump cylinder 44. As a result, the trigger 66 and the pump cylinder 44 can be assembled to the liquid ejector body 6 as an integrated product. The piston-like portion 28 also serves as at least a piston and a valve body of a suction valve, and has a function as a valve body of an air suction valve in a more preferable illustrated example. Therefore, it can be set as a simple structure as a whole. This will be described later.
第２の手段は、第１の手段を有し、かつ
上記弾性傘弁58を弁棒54とは別体として、弁棒54の後部に形成した大外径部56の前面に係止させて、上記弾性傘弁58を、上記ピストン状部28の前端部に対峙させ、これら弾性傘弁58とピストン状部28の前端部との間にポンプ室61を形成している。
The second means has the first means, and the elastic umbrella valve 58 is separated from the valve stem 54 and is engaged with the front surface of the large outer diameter portion 56 formed at the rear portion of the valve stem 54. The elastic umbrella valve 58 is opposed to the front end portion of the piston-like portion 28, and a pump chamber 61 is formed between the elastic umbrella valve 58 and the front end portion of the piston-like portion 28.
本手段では、弾性傘弁58をポンプ本体42の弁棒54と別体とすることを提案している。これにより弾性傘弁を除くポンプ本体部分の構造がさらに単純となり、このポンプ本体部分を一体成形することが容易となる。また弾性傘弁58を上記吸込み弁34の吸込み用弁体32に対峙させ、両者の間にポンプ室61を形成したから、ポンプ全体の構造も簡単とすることができ、流体抵抗も少ない。 In this means, it is proposed that the elastic umbrella valve 58 is separated from the valve stem 54 of the pump body 42. Thereby, the structure of the pump body part excluding the elastic umbrella valve is further simplified, and the pump body part can be easily formed integrally. Further, since the elastic umbrella valve 58 is opposed to the suction valve element 32 of the suction valve 34 and the pump chamber 61 is formed therebetween, the structure of the entire pump can be simplified and the fluid resistance is low.
第１の手段に係る発明によれば、トリガー66及びポンプシリンダ44を一体品として一度の取付作業で液体噴出器本体6に組み付けることができる。
第２の手段に係る発明によれば、弾性傘弁58を除くポンプ本体部分を容易に成形することができる。
According to the invention relating to the first means, the trigger 66 and the pump cylinder 44 can be assembled into the liquid ejector body 6 as a single piece by a single mounting operation.
According to the invention relating to the second means, the pump body portion excluding the elastic umbrella valve 58 can be easily formed.
図１から図７は、本発明の第１の実施形態に係る液体噴出器を示している。この液体噴出器は、装着筒2と、液体噴出器本体6と、ピストン状部28と、可動部材40とで形成している。これらの部材は特に断らない限り合成樹脂材で形成することができる。 1 to 7 show a liquid ejector according to a first embodiment of the present invention. This liquid ejector is formed by the mounting cylinder 2, the liquid ejector main body 6, the piston-like portion 28, and the movable member 40. These members can be formed of a synthetic resin material unless otherwise specified.
装着筒2は、容器体Ｂの口頸部への嵌合用であり（図６参照）、装着筒2の内側にはパッキン４を設けている。 The mounting cylinder 2 is for fitting the container body B to the mouth and neck (see FIG. 6), and a packing 4 is provided inside the mounting cylinder 2.
液体噴出器本体６は、上記装着筒２の内側に嵌合させた基筒８を有し、この基筒８の上端から前方へ射出筒10を前方突出している。射出筒10の後部下壁は基筒8の上面を閉塞しており、かつこの下壁の一部に通気孔12を開通している。上記射出筒10の前部下端には前端から後方へ延びる割り溝14を穿設している。 The liquid ejector main body 6 has a base tube 8 fitted inside the mounting tube 2, and the injection tube 10 projects forward from the upper end of the base tube 8. The rear lower wall of the injection cylinder 10 closes the upper surface of the base cylinder 8, and a vent hole 12 is opened in a part of the lower wall. A split groove 14 extending from the front end to the rear is formed in the front lower end of the injection cylinder 10.
また上記射出筒10の後部はこの射出筒10の前部に比べて小内径に形成し（図１参照）、これら後部及び前部の各内面の間に係止段部16を形成している。 The rear part of the injection cylinder 10 is formed with a smaller inner diameter than the front part of the injection cylinder 10 (see FIG. 1), and a locking step 16 is formed between the inner surfaces of the rear part and the front part. .
上記射出筒10の後端側には垂直な後壁18を形成し、この後壁から射出筒10の後部内に位置する支持筒20を前方突出している。支持筒20は射出筒10との間に一定の間隔Ａを存して同軸状に配置している。この支持筒20の後部からは射出筒10の後部を貫通して基筒８内に開口する連通筒22を垂下し、連通筒の下端に液体吸入口24を開口する。この液体吸入口からは吸上げ管26を垂下することが好適である。 A vertical rear wall 18 is formed on the rear end side of the injection cylinder 10, and a support cylinder 20 located in the rear portion of the injection cylinder 10 projects forward from the rear wall. The support cylinder 20 is coaxially arranged with a certain distance A between the injection cylinder 10. From the rear part of the support cylinder 20, a communication cylinder 22 penetrating the rear part of the injection cylinder 10 and opening into the base cylinder 8 is suspended, and a liquid suction port 24 is opened at the lower end of the communication cylinder. The suction pipe 26 is preferably suspended from the liquid suction port.
ピストン状部28は、前部を小内径部とする筒体30を有し、この筒体を上記支持筒20の後部に液密に嵌合させている。ピストン状部28はエラストマーなどの弾性材料で形成するとよい。上記筒体の前部の内縁には複数の弾性連結片を介して吸込み用弁体32を連結し、この吸込み用弁体を上記支持筒20の前面に当接させて吸込み弁34を形成している。図５に示すように上記筒体30の後部には大径の第１スカート状部36Aを、筒体30の前部外面には、小径の第２スカート状部36Bをそれぞれ周設している。 The piston-like portion 28 has a cylindrical body 30 whose front portion is a small inner diameter portion, and this cylindrical body is fitted in a liquid-tight manner to the rear portion of the support cylinder 20. The piston-like portion 28 may be formed of an elastic material such as an elastomer. A suction valve body 32 is connected to the inner edge of the front portion of the cylindrical body through a plurality of elastic connecting pieces, and the suction valve body is brought into contact with the front surface of the support cylinder 20 to form a suction valve 34. ing. As shown in FIG. 5, a large-diameter first skirt-like portion 36A is provided around the rear portion of the cylindrical body 30, and a small-diameter second skirt-like portion 36B is provided around the front outer surface of the cylindrical body 30, respectively. .
上記第１スカート状部36Aは上記射出筒10の内面に気密に当接させており、この第１スカート状部36Aの先部と射出筒10の内面とでエアー吸込弁38を形成している。 The first skirt-shaped portion 36A is in airtight contact with the inner surface of the injection cylinder 10, and an air suction valve 38 is formed by the tip of the first skirt-shaped portion 36A and the inner surface of the injection cylinder 10. .
可動部材40は、ポンプ本体42とトリガー66とノズルキャップ70とを具備する。 The movable member 40 includes a pump body 42, a trigger 66, and a nozzle cap 70.
上記ポンプ本体42は、コスト低減のために、後述の弾性傘弁を除く全体を一体成形している（図３参照）。このポンプ本体42は、射出筒10と同軸状に配置されたポンプシリンダ44を有する。ポンプシリンダ44の後部は上記第２スカート状部36Bに摺動自在にかつ液密に嵌合させるとともに、ポンプシリンダ44の前部は射出筒10の前端近くまで前方へ突出している。ポンプシリンダの後部一端からは押圧片46を後方へ突出している。この押圧片46は射出筒10の後部内面との間に間隙を存してピストン状部28の筒体30に沿って形成する。 The pump body 42 is integrally formed as a whole except for an elastic umbrella valve, which will be described later, for cost reduction (see FIG. 3). The pump main body 42 has a pump cylinder 44 arranged coaxially with the injection cylinder 10. The rear part of the pump cylinder 44 is slidably and liquid-tightly fitted to the second skirt-like part 36B, and the front part of the pump cylinder 44 projects forward to near the front end of the injection cylinder 10. A pressing piece 46 projects backward from one end of the pump cylinder. The pressing piece 46 is formed along the cylinder 30 of the piston-like portion 28 with a gap between the pressing piece 46 and the rear inner surface of the injection cylinder 10.
上記ポンプシリンダ44の前部（図示例では前端部）からは図３に示すように外向きフランジ48を介してスライド壁部50を後方へ突出している。このスライド壁部50は上記射出筒10の前部内面に摺動自在に嵌合している。図示例では外向きフランジ48の後面及びスライド壁部50の内面に亘って補強リブ49を形成している。このスライド壁部50の後面と上記係止段部16との間には、金属などで形成したコイルスプリング52を介装する。 As shown in FIG. 3, a slide wall portion 50 protrudes rearward from the front portion (front end portion in the illustrated example) of the pump cylinder 44 through an outward flange 48. The slide wall 50 is slidably fitted to the inner surface of the front portion of the injection cylinder 10. In the illustrated example, a reinforcing rib 49 is formed across the rear surface of the outward flange 48 and the inner surface of the slide wall portion 50. A coil spring 52 formed of metal or the like is interposed between the rear surface of the slide wall portion 50 and the locking step portion 16.
上記ポンプシリンダ44の内部には、弾性傘弁58付きの弁棒54を同軸状に配設する。本実施形態では、上記弁棒54は、連通孔64付きの連結壁62を介してポンプシリンダ44の適所（図示例では外向きフランジ48に連続する箇所）に一体に連結している。上記連結壁62と弾性傘弁58の前端との間には弾性傘弁58の開弁時の変形を妨げないように隙間を設ける。 A valve rod 54 with an elastic umbrella valve 58 is coaxially disposed inside the pump cylinder 44. In the present embodiment, the valve stem 54 is integrally connected to an appropriate position of the pump cylinder 44 (a portion continuing to the outward flange 48 in the illustrated example) via a connecting wall 62 with a communication hole 64. A gap is provided between the connecting wall 62 and the front end of the elastic umbrella valve 58 so as not to prevent deformation of the elastic umbrella valve 58 when the valve is opened.
図示の弁棒54は、前端閉塞の筒体として形成しているが、中実の棒体に形成してもよい。この弁棒54の後部は大外径部56に形成されている。 Although the illustrated valve rod 54 is formed as a cylinder with a closed front end, it may be formed into a solid rod. The rear portion of the valve stem 54 is formed in a large outer diameter portion 56.
図示の弾性傘弁58は、上記弁棒54とは別体であり、弾性材料で形成する。この弾性傘弁58は、図４に示す如くリング状の基部58ａとこの基部から突出する前端大径のテーパ状部58bとで形成され、当該基部58aを上記弁棒の大外径部56前面に係止させている。このテーパ状部58bの先部とポンプシリンダ44の内面とで吐出弁60を形成している。 The illustrated elastic umbrella valve 58 is separate from the valve stem 54 and is formed of an elastic material. As shown in FIG. 4, the elastic umbrella valve 58 is formed by a ring-shaped base portion 58a and a front-end large-diameter tapered portion 58b protruding from the base portion, and the base portion 58a is connected to the front surface of the large outer diameter portion 56 of the valve stem. Is locked. A discharge valve 60 is formed by the tip of the tapered portion 58b and the inner surface of the pump cylinder 44.
本実施形態では、弁棒54とポンプシリンダ44との連結壁62を弾性傘弁58よりも前方に設けているため、弾性傘弁58は弁棒54の後方側から弁棒54の大外径部56を乗り越えて嵌合可能とすることが望ましい。 In this embodiment, since the connecting wall 62 between the valve stem 54 and the pump cylinder 44 is provided in front of the elastic umbrella valve 58, the elastic umbrella valve 58 has a large outer diameter of the valve stem 54 from the rear side of the valve rod 54. It is desirable to be able to fit over the portion 56.
上記弾性傘弁58は図１に示すように上記吸込み用弁体32を含むピストン状部28の前端部を対峙しており、これら弾性傘弁58と吸込み用弁体32との間にポンプ室61が形成されている。 As shown in FIG. 1, the elastic umbrella valve 58 opposes the front end portion of the piston-like portion 28 including the suction valve body 32, and a pump chamber is provided between the elastic umbrella valve 58 and the suction valve body 32. 61 is formed.
上記ポンプ本体42の前部下面からは一体にトリガー66を垂下する。このトリガー66は上記割り溝14を通って装着筒2の前方側に位置させている。 A trigger 66 is integrally suspended from the lower surface of the front portion of the pump body 42. The trigger 66 is positioned on the front side of the mounting cylinder 2 through the split groove 14.
また図示のポンプ本体42は、上記ポンプシリンダ44の前端部から前方へ延長する取付筒部68を有する。 The illustrated pump body 42 has a mounting cylinder portion 68 extending forward from the front end portion of the pump cylinder 44.
上記ノズルキャップ70は、図２に示すようにノズル孔72付きの前壁裏面から内筒74及び外筒76を後方突出し、その内筒74内に上記弁棒54の前部を挿入し、また外筒76内に上記取付筒部68を液密に嵌合させている。内筒74と弁棒54の前部との間には図示しない液体通路を形成する。このノズルキャップ70は、回転操作により吐出弁60からノズル孔72への連通を開閉できるように設けることが好適である。 As shown in FIG. 2, the nozzle cap 70 projects the inner cylinder 74 and the outer cylinder 76 rearward from the rear surface of the front wall with the nozzle hole 72, and the front portion of the valve stem 54 is inserted into the inner cylinder 74. The mounting cylinder portion 68 is fitted in the outer cylinder 76 in a liquid-tight manner. A liquid passage (not shown) is formed between the inner cylinder 74 and the front portion of the valve stem 54. The nozzle cap 70 is preferably provided so that the communication from the discharge valve 60 to the nozzle hole 72 can be opened and closed by a rotating operation.
上記構成において、この液体噴出器を容器体Ｂの口頸部に装着し、トリガー66を後方に引くと、トリガー66を含む可動部材40が後方へ平行に移動し、図６に示すように吐出弁60が開いてポンプシリンダ44内の液体がノズルから噴出される。同図はトリガーの後退途中の様子を表し、同図よりもさらにトリガー66を後退させると、図７のように第１スカート状部36Aが押圧片46によって押込まれることで射出筒10の内面から離れ、エアー吸込弁38が開く。このエアー吸込弁38及び通気孔12を介して、割り溝14から流入した外気が容器体Ｂの内部へ入る。次にトリガー66を解放すると、コイルスプリング52の前方付勢力により、可動部材40が前進し、吸込み弁34が開いて液体が吸い上げられる。 In the above configuration, when the liquid ejector is mounted on the mouth and neck of the container body B and the trigger 66 is pulled backward, the movable member 40 including the trigger 66 moves backward in parallel, and discharge is performed as shown in FIG. The valve 60 is opened and the liquid in the pump cylinder 44 is ejected from the nozzle. The figure shows a state during the retreat of the trigger. When the trigger 66 is further retreated than the figure, the first skirt-like portion 36A is pushed by the pressing piece 46 as shown in FIG. And the air suction valve 38 opens. The outside air that has flowed in from the split groove 14 enters the inside of the container body B through the air suction valve 38 and the vent hole 12. Next, when the trigger 66 is released, the movable member 40 moves forward by the forward biasing force of the coil spring 52, the suction valve 34 is opened, and the liquid is sucked up.
また上記液体噴出器の各部材は簡易な構成であるので、製造工程が容易となる。 Moreover, since each member of the said liquid ejector is a simple structure, a manufacturing process becomes easy.
２…装着筒 ４…パッキン ６…液体噴出器本体 ８…基筒 10…射出筒
12…通気孔 14…割り溝 16…係止段部 18…後壁 20…支持筒 22…連通筒
24…液体吸入口 26…吸上げ管
28…ピストン状部 30…筒体 32…吸込み用弁体 34…吸込み弁
36A…第１スカート状部 36B…第２スカート状部 38…エアー吸込弁
40…可動部材 42…ポンプ本体 44…ポンプシリンダ 46…押圧片
48…外向きフランジ 49…補強リブ
50…スライド壁部 52…コイルスプリング 54…弁棒 56…大外径部 58…弾性傘弁
58a…基部 58b…テーパ状部 60…吐出弁 61…ポンプ室 62…連結壁 64…連通孔
66…トリガー 68…取付筒部 70…ノズルキャップ 72…ノズル孔
74…内筒 76…外筒
Ａ…間隙 Ｂ…容器体
2 ... Installation cylinder 4 ... Packing 6 ... Liquid ejector body 8 ... Base cylinder 10 ... Injection cylinder
12 ... Vent hole 14 ... Split groove 16 ... Locking step 18 ... Rear wall 20 ... Support cylinder 22 ... Communication cylinder
24… Liquid inlet 26… Suction pipe
28 ... Piston-like part 30 ... Cylinder 32 ... Valve for suction 34 ... Suction valve
36A ... 1st skirt-like part 36B ... 2nd skirt-like part 38 ... Air suction valve
40 ... movable member 42 ... pump body 44 ... pump cylinder 46 ... pressing piece
48… Outward flange 49… Reinforcing rib
50 ... Slide wall 52 ... Coil spring 54 ... Valve rod 56 ... Large diameter part 58 ... Elastic umbrella valve
58a ... Base 58b ... Tapered portion 60 ... Discharge valve 61 ... Pump chamber 62 ... Connecting wall 64 ... Communication hole
66 ... Trigger 68 ... Mounting cylinder 70 ... Nozzle cap 72 ... Nozzle hole
74 ... Inner cylinder 76 ... Outer cylinder A ... Gap B ... Container body
Claims (2)
上記基筒(8)の外側に取り付けた装着筒(2)と、
上記支持筒(20)の外側に嵌合させた筒形のピストン状部(28)と、
このピストン状部(28)の外面に摺動可能に嵌合されたポンプシリンダ(44)を含みかつ射出筒(10)の前部内に摺接したポンプ本体(42)、このポンプ本体の下面から上記割り溝(14)を介して一体的に垂下されポンプ本体とともに前後方向へ平行移動可能に形成したトリガー(66)、及びポンプシリンダ(44)の前方に取付けられたノズルキャップ(70)を有する可動部材(40)と、を具備し、
上記ピストン状部(28)の前部内に設けた吸込み用弁体(32)と支持筒(20)の前端部とで吸込み弁(34)を形成し、
上記ポンプシリンダ(44)内に、前端大径のテーパ状の弾性傘弁(58)付きの弁棒(54)を同軸状に配置して、弾性傘弁(58)の先端部とポンプシリンダ(44)の内面との間に吐出弁(60)を形成したことを特徴とする、液体噴出器。 A support cylinder (20) for closing the rear end, which protrudes forward from the upper part of the base cylinder (8) at the lower end and projects coaxially in the rear part of the injection cylinder (10), A liquid ejector body (6) in communication with a liquid suction port (24) opened in the cylinder (8), and having a split groove (14) formed in the lower half of the front portion of the injection cylinder (10);
A mounting cylinder (2) attached to the outside of the base cylinder (8);
A cylindrical piston-like portion (28) fitted to the outside of the support cylinder (20);
A pump body (42) including a pump cylinder (44) slidably fitted to the outer surface of the piston-like part (28) and slidably contacting the front part of the injection cylinder (10), from the lower surface of the pump body It has a trigger (66) that is integrally suspended via the split groove (14) and is movable in parallel with the pump body in the front-rear direction, and a nozzle cap (70) attached in front of the pump cylinder (44). A movable member (40),
A suction valve (34) is formed by the suction valve element (32) provided in the front part of the piston-like part (28) and the front end part of the support cylinder (20),
In the pump cylinder (44), a valve rod (54) with a tapered elastic umbrella valve (58) having a large front end is coaxially arranged, and the tip of the elastic umbrella valve (58) and the pump cylinder ( 44) A liquid ejector characterized in that a discharge valve (60) is formed between the inner surface of 44).
Separately from the valve stem (54), the elastic umbrella valve (58) is engaged with the front surface of the large outer diameter portion (56) formed at the rear of the valve stem (54), and the elastic umbrella valve (58 ) Is opposed to the front end portion of the piston-like portion (28), and a pump chamber (61) is formed between the elastic umbrella valve (58) and the front end portion of the piston-like portion (28). The liquid ejector according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011042448A JP5541739B2 (en) | 2011-02-28 | 2011-02-28 | Liquid ejector |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2011042448A JP5541739B2 (en) | 2011-02-28 | 2011-02-28 | Liquid ejector |
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| JP5541739B2 true JP5541739B2 (en) | 2014-07-09 |
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| TWI651070B (en) * | 2013-12-06 | 2019-02-21 | 瑞士商拜耳保健消費品股份有限公司 | Dispenser for dispensing flowable materials |
| JP6276600B2 (en) * | 2014-01-22 | 2018-02-07 | キャニヨン株式会社 | Trigger sprayer |
| JP2015137128A (en) * | 2014-01-22 | 2015-07-30 | キャニヨン株式会社 | Trigger type sprayer |
| JP6634255B2 (en) | 2015-09-30 | 2020-01-22 | 株式会社吉野工業所 | Dispenser with nozzle tip |
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| JPS5245921B2 (en) * | 1973-12-12 | 1977-11-19 | ||
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| JPS59158465U (en) * | 1983-04-08 | 1984-10-24 | 株式会社吉野工業所 | spray equipment |
| JP4925196B2 (en) * | 2007-04-26 | 2012-04-25 | 株式会社吉野工業所 | Valve member and ejection head using the valve member |
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