JPH0244864Y2 - - Google Patents
Info
- Publication number
- JPH0244864Y2 JPH0244864Y2 JP11378785U JP11378785U JPH0244864Y2 JP H0244864 Y2 JPH0244864 Y2 JP H0244864Y2 JP 11378785 U JP11378785 U JP 11378785U JP 11378785 U JP11378785 U JP 11378785U JP H0244864 Y2 JPH0244864 Y2 JP H0244864Y2
- Authority
- JP
- Japan
- Prior art keywords
- injection
- push button
- injection port
- valve stem
- movable valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002347 injection Methods 0.000 claims description 56
- 239000007924 injection Substances 0.000 claims description 56
- 238000009423 ventilation Methods 0.000 claims description 13
- 239000000443 aerosol Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000035807 sensation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
Description
【考案の詳細な説明】
(考案の目的)
この考案は、エアゾル噴射装置の可動弁茎に嵌
着される噴射口つき押ボタンに関し、噴射容器に
収容される噴射ガスの圧力が低い場合でも良好な
噴霧状態が得られる手段を提供するのがその目的
である。[Detailed description of the invention] (Purpose of the invention) This invention relates to a push button with an injection port that is fitted into the movable valve stem of an aerosol injection device, and is effective even when the pressure of the injection gas contained in the injection container is low. The purpose is to provide a means by which a spray condition can be obtained.
エアゾル噴射装置は、薬液その他の溶液ととも
に噴射容器に収容した噴射ガスの圧力により、溶
液の噴射を行うのであるが、従来一般に、噴射容
器の初期の内圧が4〜7Kg/cm2になるように噴射
ガスの種類および用量が加減されている。噴射ガ
スは溶液噴射の繰返しにより消費され、噴射圧が
次第に低下するので、充填後、初期の使用時には
噴霧の良好なエアゾル状態が得られても、噴射圧
の低下により噴霧の到達距離が短縮するばかりで
なく、霧の粒子が粗大化する欠点がある。 Aerosol injection devices inject solutions using the pressure of injection gas stored in an injection container together with medical solutions and other solutions . The type and amount of propellant gas is adjusted. The injection gas is consumed by repeated injections of the solution, and the injection pressure gradually decreases, so even if a good aerosol state of the spray is obtained during the initial use after filling, the drop in the injection pressure will shorten the distance the spray reaches. In addition, there is a drawback that the particles of the fog become coarse.
ところで、噴射口から噴射液が射出される際
は、エゼクタの原理により噴射口の口縁付近には
負圧が発生するのであるが、噴射圧が大きい間は
内部から放出されるガスがこの負圧を充分に補償
するので噴射口の外部空気が吸引されず、噴霧の
乱れはない。しかしながら、噴射圧がある程度に
低下すると外部空気がほぼ噴射方向に逆らう方向
分力をもつて噴射口に侵入しようとするため、噴
射に乱れが生じ、しばしば噴射口に液膜が発生
し、その結果噴射状態が極度に不良化する。した
がつて、この考案は噴射圧が低い状態における前
記のような噴射状態の不良化を防止することがそ
の重要な目的である。 By the way, when the injection liquid is injected from the injection port, negative pressure is generated near the rim of the injection port due to the ejector principle, but while the injection pressure is high, the gas released from inside is Since the pressure is sufficiently compensated, air outside the injection port is not sucked in, and there is no turbulence in the spray. However, when the injection pressure decreases to a certain degree, external air tries to enter the injection port with a force that is almost in the opposite direction to the injection direction, causing turbulence in the injection and often causing a liquid film to form at the injection port. The injection condition becomes extremely poor. Therefore, an important objective of this invention is to prevent the above-mentioned deterioration of the injection condition when the injection pressure is low.
(考案の構成)
以下図示した実施例によりこの考案を説明すれ
ば、1は周知であるエアゾル噴射装置の可動弁茎
で、この考案における押ボタンはこの可動弁茎1
に嵌着され、開弁により可動弁茎1を通じて上昇
する噴射液を前面に開口している噴射口2から放
出するものである。3は押ボタン本体で、中空の
通気管4が嵌挿されており、この通気管4は噴射
口2および押ボタン3の後面に開口している。5
は通気管4の前記した嵌挿により通気管4の前部
に周設した環状の通路で、通路5は噴射口2に開
口するとともに、可動弁茎1の軸孔11に接続し
ている。(Structure of the invention) This invention will be explained below with reference to the illustrated embodiment. 1 is a movable valve stem of a well-known aerosol injection device, and the push button in this invention is this movable valve stem 1.
When the valve is opened, the liquid that rises through the movable valve stem 1 is discharged from the injection port 2 that is open at the front. Reference numeral 3 denotes a push button body into which a hollow ventilation pipe 4 is inserted, and this ventilation pipe 4 opens at the rear surface of the injection port 2 and the push button 3. 5
is an annular passage provided around the front part of the ventilation pipe 4 by fitting the ventilation pipe 4 as described above, and the passage 5 opens to the injection port 2 and is connected to the shaft hole 11 of the movable valve stem 1.
なお、第1図および第3図に示す実施例におい
て、通気管4の前部の円錐状部41の周面には数
個の小突起42を設け、噴射口2に対する通路5
および通気管の軸孔43の心出しを容易にしてあ
る。図示した小突起42に代え、同様な突起を押
ボタン本体3の内面に成型し、通気管4の円錐状
部41の周面は突起のない滑らかな錐面に成型し
てもよい。第4図および第5図には他の実施例の
通気管が示されている。この通気管と前記した第
1図および第3図に示す通気管4とは、円錐状部
41の周面の形状が異なるほか、全体としてほぼ
同様な形状をそなえている。44は錐面からねじ
状に突出している突条で、突条44が押ボタン本
体3の内面に係合することにより噴射口2に対す
る通路5および軸孔43の心出しが容易にできる
ようになつているほか、環状の通路5を通過する
溶液が突条44の案内により、噴射口2からひね
りを受けて放出されるようになつている。 In the embodiment shown in FIGS. 1 and 3, several small protrusions 42 are provided on the circumferential surface of the conical part 41 at the front of the vent pipe 4, and the passage 5 for the injection port 2 is provided with several small protrusions 42.
Also, centering of the shaft hole 43 of the ventilation pipe is facilitated. Instead of the illustrated small projections 42, similar projections may be molded on the inner surface of the push button body 3, and the peripheral surface of the conical portion 41 of the vent pipe 4 may be molded into a smooth conical surface without projections. 4 and 5 show another embodiment of the vent pipe. This vent pipe and the vent pipe 4 shown in FIGS. 1 and 3 described above have substantially the same overall shape, except for the shape of the circumferential surface of the conical portion 41. Reference numeral 44 denotes a protrusion protruding from the conical surface in a threaded manner, and when the protrusion 44 engages with the inner surface of the push button body 3, the passage 5 and the shaft hole 43 can be easily centered with respect to the injection port 2. In addition, the solution passing through the annular passage 5 is twisted and discharged from the injection port 2 by the guide of the protrusion 44.
(考案の効果)
この考案は前記のようにしてなり、押ボタンの
本体3に通気管4を嵌挿したことにより環状の通
路5が通気管4の前部に周設され、この通路5は
可動弁茎1の軸孔11に接続されているので、噴
射装置の開弁により、軸孔11を上昇する噴射液
は通路5をへて環状の態様で噴射口2から射出さ
れる。この射出の際、噴射口2にはエゼクタの原
理により負圧が発生するのであるが、通気管4は
前記したように中空であり、噴射口2および押ボ
タン本体3の後面に開口しているので、ここに発
生している負圧は通気管の軸孔43からの空気供
給により補償される。この空気供給の方向は噴射
方向と一致し、噴射方向に逆らう負圧補償の方向
分力が存在しない。したがつて、噴射圧が低圧で
ある場合でも噴射口における液膜の発生はなく、
良好なエアゾル噴霧を得ることができる。噴射圧
が高圧である場合について噴射方向と一致する空
気補償が噴霧に悪影響をおよぼすことがないのは
もちろんである。(Effect of the invention) This invention is made as described above, and by fitting the ventilation pipe 4 into the main body 3 of the push button, an annular passage 5 is provided around the front part of the ventilation pipe 4. Since it is connected to the axial hole 11 of the movable valve stem 1, when the injection device is opened, the injection liquid rising in the axial hole 11 passes through the passage 5 and is injected from the injection port 2 in an annular manner. During this injection, negative pressure is generated in the injection port 2 due to the ejector principle, but the vent pipe 4 is hollow as described above and opens at the rear surface of the injection port 2 and the push button body 3. Therefore, the negative pressure generated here is compensated by the air supply from the shaft hole 43 of the ventilation pipe. The direction of this air supply coincides with the injection direction, and there is no negative pressure compensation directional force that opposes the injection direction. Therefore, even when the injection pressure is low, there is no formation of a liquid film at the injection port.
A good aerosol spray can be obtained. Of course, when the injection pressure is high, the air compensation that coincides with the injection direction does not adversely affect the spray.
かくして、この考案によれば、噴射液の消費に
より噴射圧が低下したときでも噴霧の到達距離が
短縮するだけで、良好な噴霧状態が継続するエア
ゾル噴射装置を提供することができる。また、エ
アゾル噴射装置を皮膚剤の塗布に用いる場合、過
度の冷感がきらわれるのであるが、この考案によ
れば、最初から噴射圧を低圧に設計することによ
り、過度の冷感が避けられるので、特に人体塗布
用薬剤散布用に好適なエアゾル噴射装置を提供す
ることができる。 Thus, according to this invention, it is possible to provide an aerosol injection device that maintains a good spray state even when the injection pressure decreases due to consumption of the injection liquid, simply by shortening the spray reach distance. In addition, when using an aerosol injection device to apply skin agents, an excessively cold sensation is disliked, but with this invention, by designing the injection pressure to be low from the beginning, an excessively cold sensation can be avoided. Therefore, it is possible to provide an aerosol injection device particularly suitable for dispersing chemicals for application to the human body.
第1図はこの考案にかかる低圧エアゾル噴射用
押ボタンの一実施例の右側縦断面図、第2図は同
じく正面図、第3図は同じく通気管の正面図、第
4図は他の実施例の通気管の正面図、第5図は同
じく一部縦断側面図である。
1は可動弁茎、11は軸孔、2は噴射口、3は
押ボタン本体、4は通気管、41は円錐状部、4
2は小突起、43は軸孔、44は突条、5は通路
である。
Fig. 1 is a right side vertical sectional view of one embodiment of the low-pressure aerosol injection push button according to this invention, Fig. 2 is a front view of the same, Fig. 3 is a front view of the ventilation pipe, and Fig. 4 is another embodiment. The front view of the example ventilation pipe and FIG. 5 are also partially longitudinal side views. 1 is a movable valve stem, 11 is a shaft hole, 2 is an injection port, 3 is a push button body, 4 is a ventilation pipe, 41 is a conical part, 4
2 is a small projection, 43 is a shaft hole, 44 is a protrusion, and 5 is a passage.
Claims (1)
により可動弁茎1を通じて上昇する噴射液を前面
に開口する噴射口2から放出する押ボタンにおい
て、噴射口2および押ボタン本体3の後面に開口
する中空の通気管4を押ボタン本体3に嵌挿した
ことにより可動弁茎1の軸孔11に接続する環状
の通路5を通気管4の前部に周設するとともに通
路5を噴射口2に開口させてなる低圧エアゾル噴
射用押ボタン。 In a push button that fits into a movable valve stem 1 of an aerosol injection device and releases the injection liquid that rises through the movable valve stem 1 when the valve is opened from an injection port 2 that opens on the front side, the rear surface of the injection port 2 and the push button body 3 By fitting the hollow ventilation pipe 4 that opens into the push button body 3, an annular passage 5 connected to the shaft hole 11 of the movable valve stem 1 is provided around the front part of the ventilation pipe 4, and the passage 5 is injected. A low-pressure aerosol injection push button with an opening at mouth 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11378785U JPH0244864Y2 (en) | 1985-07-26 | 1985-07-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11378785U JPH0244864Y2 (en) | 1985-07-26 | 1985-07-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6224957U JPS6224957U (en) | 1987-02-16 |
JPH0244864Y2 true JPH0244864Y2 (en) | 1990-11-28 |
Family
ID=30995919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11378785U Expired JPH0244864Y2 (en) | 1985-07-26 | 1985-07-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0244864Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0646865Y2 (en) * | 1990-02-08 | 1994-11-30 | 高砂香料工業株式会社 | Spraying device |
JP2012135733A (en) * | 2010-12-27 | 2012-07-19 | Toyo Aerosol Ind Co Ltd | Spray nozzle for use in aerosol vessel |
-
1985
- 1985-07-26 JP JP11378785U patent/JPH0244864Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6224957U (en) | 1987-02-16 |
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