JPH02309926A - Quick exhaust valve for hemadynamometer - Google Patents
Quick exhaust valve for hemadynamometerInfo
- Publication number
- JPH02309926A JPH02309926A JP1131950A JP13195089A JPH02309926A JP H02309926 A JPH02309926 A JP H02309926A JP 1131950 A JP1131950 A JP 1131950A JP 13195089 A JP13195089 A JP 13195089A JP H02309926 A JPH02309926 A JP H02309926A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- valve
- exhaust port
- permanent magnet
- valve cover
- 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.)
- Granted
Links
- 230000036772 blood pressure Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 230000035939 shock Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035488 systolic blood pressure Effects 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
本発明は血圧計において使用される急速排気弁に関する
。The present invention relates to quick exhaust valves used in blood pressure monitors.
血圧計（電子血圧計）においては、カフを加圧後、徐々
に排気しながら最高最低血圧値や脈拍数を測定し、その
後、カフに残っている加圧空気を急速排気弁から急速に
排出するものであり、この急速排気弁としては電磁弁の
ほかに、第５図及び第６図に示すように、排気口に配し
たゴム製の筒“体２と、筒体２の端面に接触することで
排気口を閉じる弁Ｍ３とからなるものが提供されている
。
ここにおける弁Ｗ３は磁性体からなるもので、軸６によ
って回動自在に支持されており、カフに加圧空気を送る
ためのダイアフラムポンプを駆動するモータ５の出力軸
に装着されたねじりコイルばね７で駆動されるようにな
っている。
すなわち、モータ５が第６図中にＡで示す方向に回転し
てクランク部１２．１３を介してダイアフラムポンプ１
を駆動する時、ねじりコイルばね７はその一端の片７ｂ
で弁蓋３の係合片９を押圧して、弁蓋３を回動させて、
排気口が開口する筒体２の先端面に接触させ、排気口を
閉じる。尚、弁蓋２による排気口の閉塞後は、ねじりコ
イルばね７がモータ５の出力軸に対して空転することに
なるために、ダイアフラムポンプ１の駆動に支障が生じ
ることはない。
急速排気にあたっては、モータ５を逆方向、つまり図中
Ｂ方向に回転させればよい。この回転に伴い、ねじりコ
イルばね７は他端の片７ａが弁蓋３の係合片８を押圧し
て回動させるために、弁蓋３は筒体２から離れて排気口
を開く。
そしてこのものでは、排気口が弁蓋３によって閉じられ
た状態と、排気口が開かれている状態とを保つために、
弁蓋３の先端部を吸着する一対の永久磁石２１．２２を
備えたものとなっている。
図中１８は吸気口、１５はカフへと空気を送るための送
気口であり、上記排気口は送気口１５に連通するものと
して形成されている。In a blood pressure monitor (electronic blood pressure monitor), after pressurizing the cuff, the systolic blood pressure and pulse rate are measured while gradually exhausting the air, and then the pressurized air remaining in the cuff is rapidly expelled from the rapid exhaust valve. In addition to the solenoid valve, this quick exhaust valve includes a rubber cylindrical body 2 placed at the exhaust port and a rubber cylinder body 2 that contacts the end surface of the cylindrical body 2, as shown in Figures 5 and 6. The valve W3 is made of a magnetic material, is rotatably supported by a shaft 6, and is configured to send pressurized air to the cuff. The diaphragm pump is driven by a torsion coil spring 7 attached to the output shaft of a motor 5. That is, the motor 5 rotates in the direction indicated by A in FIG. 12. Diaphragm pump 1 via 13
When driving the torsion coil spring 7, one end of the piece 7b
Press the engaging piece 9 of the valve lid 3 with the button to rotate the valve lid 3.
The exhaust port is brought into contact with the distal end surface of the cylindrical body 2 where the exhaust port is opened, and the exhaust port is closed. Note that after the exhaust port is closed by the valve cover 2, the torsion coil spring 7 idles relative to the output shaft of the motor 5, so that there is no problem in driving the diaphragm pump 1. For rapid exhaust, the motor 5 may be rotated in the opposite direction, that is, in the direction B in the figure. With this rotation, the piece 7a at the other end of the torsion coil spring 7 presses the engagement piece 8 of the valve lid 3 and rotates, so that the valve lid 3 separates from the cylindrical body 2 and opens the exhaust port. In this case, in order to keep the exhaust port closed by the valve cover 3 and the exhaust port open,
It is equipped with a pair of permanent magnets 21 and 22 that attract the tip of the valve lid 3. In the figure, reference numeral 18 indicates an inlet port, 15 indicates an air supply port for sending air to the cuff, and the above-mentioned exhaust port is formed to communicate with the air supply port 15.
上記排気口を備えたゴム製の筒体２は、その先端側の外
径が根元側に比して少し小さくされているものの、弾性
係数からみれば、根元側と先端側との差は殆どなく、か
なり大きい弾性係数をもっていることから、各部品の寸
法誤差や組み付は時の誤差等のために永久磁石２１の高
さと筒体２の高さとの間に少しでもずれが生じると、所
要の性能を得ることができないという問題を有している
。
すなわち、第８図に示すように、永久磁石２１の方が高
いと、弁Ｍ３が筒体２の上面に密着せず、エア漏れを生
じてしまうものであり、逆に第９図に示すように、永久
磁石２１の方が低いと、弁蓋３は筒体２を圧縮した状態
で永久磁石２１に吸着されるのであるが、この圧縮に要
する力が大きいことから、永久磁石２１による弁蓋３の
吸着力が弱くなっており、振動やショックで弁蓋３が筒
体２から離れてエア漏れを起こすことが多々ある。
本発明はこのような点に鑑み為されたものであり、その
目的とするところは部品寸法や組み付は時の誤差、ある
いはゴム製である筒体の硬度が少々変動しても、確実な
動作を得ることができる血圧計用急速排気弁を提供する
にある。Although the outer diameter of the rubber cylinder body 2 equipped with the exhaust port is slightly smaller at the tip side than at the base side, in terms of elastic modulus, there is almost no difference between the base side and the tip side. It has a fairly large elastic modulus, so if there is even a slight deviation between the height of the permanent magnet 21 and the height of the cylindrical body 2 due to dimensional errors of each part or assembly time errors, the required The problem is that it is not possible to obtain the same performance. That is, as shown in FIG. 8, if the permanent magnet 21 is higher, the valve M3 will not come into close contact with the upper surface of the cylinder body 2, causing air leakage, and conversely, as shown in FIG. In contrast, if the permanent magnet 21 is lower, the valve cover 3 will be attracted to the permanent magnet 21 while compressing the cylinder body 2. However, since the force required for this compression is large, the valve cover due to the permanent magnet 21 is 3 is weak, and the valve cover 3 often separates from the cylindrical body 2 due to vibration or shock, causing air leakage. The present invention has been developed in view of these points, and its purpose is to ensure that parts dimensions and assembly can be reliably maintained even if there are errors in time or slight variations in the hardness of the rubber cylindrical body. An object of the present invention is to provide a quick exhaust valve for a blood pressure monitor that can be operated.
しかして本発明は、排気口に配されたゴム製の筒体と、
筒体の先端面に接触することで排気口を閉じる弁蓋とか
らなる急速排気弁において、筒体における弁蓋が接触す
る先端部の弾性係数が他の部分より小さくされているこ
とに特徴を有している。
［作用コ
本発明によれば、筒体の先端部が容易に変形するために
、この変形を見込んだ形で弁蓋の駆動を行えばよく、ま
た筒体の圧縮量が寸法誤差等のために変化しても、弁蓋
の保持に要する力の変化は少ないものである。
［実施例］
以下本発明を図示の実施例に基づいて詳述すると、ここ
における急速排気弁は、前記従来例と同じ構成を有する
ものであるが、排気口に配されるゴム製の筒体２として
、第１図に示すものを用いている。この筒体２は、図か
らも明らかなように、先端部が所要の長さにわたって薄
肉に形成されて、弾性係数が他の部分よりかなり小さく
なっている変形容易部２０が設けられている。そして前
記従来例に比して、高さｈが大きくされている。
このような筒体２を用いた場合、第２図に示すように、
筒体２の上端と永久磁石２１の上端とは、寸法誤差等が
あっても、筒体２の方が高いところに位置するものであ
り、そして弁蓋３が筒体２の上端面に接するとともに永
久磁石２１に吸着されることで、排気口を閉じた状態に
保つ時、筒体２の変形容易部２０は圧縮された状態とな
る。
そして、上記寸法誤差等は、筒体２の圧縮量の変動とし
てあられれるが、圧縮されるのは変形容易部２０であり
、圧縮量が異なっても圧縮に要する力は殆ど変化せず、
従って永久磁石２１による弁蓋３の保持は確実になされ
てショックや振動で弁Ｍ３が筒体２から離れるようなこ
とがないものであり、また、筒体２の変形容易部２０は
薄肉となっているとはいえ、圧縮されることによって弁
蓋３との接触面積が増大するために、エア漏れを起こす
こともない。
もっとも、変形容易部２０の肉厚をあまり薄くしすぎる
と、加圧された空気が自身の圧力で変形容易部２０を変
形させて漏れ出るおそれがあるが、この点については、
第３図に示すように、先端面に環状の７字形溝２３を形
成することで、変形容易部２０を内周側と外周側との二
重構造とすることで対処することができる。殊に弁蓋３
との接触面積を大きくするには、第４図に示すように、
筒体２の内部に中空部２４を形成するとよい。However, the present invention has a rubber cylindrical body disposed at the exhaust port,
A rapid exhaust valve consisting of a valve cover that closes the exhaust port by contacting the tip surface of a cylinder body is characterized in that the elastic modulus of the tip part of the cylinder body where the valve cover contacts is smaller than that of other parts. have. [Function] According to the present invention, since the tip of the cylindrical body is easily deformed, the valve cover can be driven in such a manner that this deformation is taken into account, and the amount of compression of the cylindrical body can be adjusted due to dimensional errors, etc. Even if the valve cover changes, the change in the force required to hold the valve lid is small. [Example] The present invention will be described in detail below based on the illustrated example.The quick exhaust valve here has the same configuration as the conventional example, but a rubber cylinder disposed at the exhaust port. 2, the one shown in FIG. 1 is used. As is clear from the figure, this cylindrical body 2 is provided with an easily deformable portion 20 whose distal end is thinly formed over a required length and whose elastic modulus is considerably smaller than that of the other portions. The height h is increased compared to the conventional example. When such a cylinder 2 is used, as shown in FIG.
Even if there is a dimensional error between the upper end of the cylinder 2 and the upper end of the permanent magnet 21, the cylinder 2 is located higher, and the valve cover 3 is in contact with the upper end surface of the cylinder 2. By being attracted to the permanent magnet 21, the easily deformable portion 20 of the cylindrical body 2 is in a compressed state when the exhaust port is kept closed. The above-mentioned dimensional error etc. appear as a variation in the amount of compression of the cylinder 2, but it is the easily deformable portion 20 that is compressed, and the force required for compression hardly changes even if the amount of compression differs.
Therefore, the valve cover 3 is held securely by the permanent magnet 21, and the valve M3 does not separate from the cylinder body 2 due to shock or vibration, and the easily deformable portion 20 of the cylinder body 2 is thin. However, since the contact area with the valve lid 3 is increased by being compressed, air leakage does not occur. However, if the wall thickness of the easily deformable part 20 is made too thin, there is a risk that the pressurized air will deform the easily deformable part 20 with its own pressure and leak out.
As shown in FIG. 3, by forming an annular 7-shaped groove 23 on the distal end surface, this problem can be solved by making the easily deformable portion 20 have a double structure with an inner circumferential side and an outer circumferential side. Especially valve lid 3
In order to increase the contact area with the
It is preferable to form a hollow portion 24 inside the cylinder 2.
以上のように本発明においては、弁蓋が接することにな
る筒体の先端部が容易に変形するものとされているため
に、この変形を見込んだ形で弁蓋の駆動を行えばよく、
また筒体の圧縮量が寸法誤差等のために変化しても、弁
蓋の保持に要する力の変化は少ないために、弁蓋による
排気口の確実な閉塞状態を確実に得られるものであって
、エア漏れを起こすことがないものである。As described above, in the present invention, since the tip of the cylindrical body that the valve lid comes into contact with is easily deformed, the valve lid may be driven in such a manner that this deformation is taken into consideration.
Furthermore, even if the amount of compression of the cylinder changes due to dimensional errors, the force required to hold the valve lid changes little, so the valve lid can reliably close the exhaust port. Therefore, there is no possibility of air leakage.
第１図（ａ）（ｂ）は本発明一実施例に係る筒体の平面
図と破断正面図、第２図（ａ）（ｂ）は同上の動作説明
図、第３図（ａ）（ｂ）は筒体の他の実施例の平面図と
破断正面図、第４図（ａ）（ｂ）は筒体の更に他の実施
例の平面図と破断正面図、第５図は急速排気弁の一例の
斜視図、第６図は同上の断面図、第７図（ａ）（ｂ）は
同上の動作を示す断面図、第８図及び第９図は従来例の
問題点を示す断面図であって、２は筒体、３は弁蓋、２
０は変形容易部を示す。
代理人 弁理士 石 １）長 七
２・・筒体
膚 ＩＰ ３ 弁鐙
２〇−変形容易部
（ｂ）
第２図
（ｂ）
ら
第３図
ｇ４図
（Ｇ）
（ｂ）
１１５図
第６ＷＪ
第７図
（ｂ）FIGS. 1(a) and (b) are a plan view and a cutaway front view of a cylinder according to an embodiment of the present invention, FIGS. 2(a) and (b) are explanatory views of the same operation, and FIG. 3(a) ( b) is a plan view and a cutaway front view of another embodiment of the cylindrical body, FIGS. 4(a) and 4(b) are a plan view and a cutaway front view of yet another embodiment of the cylindrical body, and FIG. 5 is a rapid exhaust A perspective view of an example of the valve, FIG. 6 is a cross-sectional view of the same as above, FIGS. 7(a) and (b) are cross-sectional views showing the operation of the same as above, and FIGS. 8 and 9 are cross-sectional views showing problems of the conventional example. In the figure, 2 is a cylinder body, 3 is a valve cover, 2
0 indicates an easily deformable portion. Agent Patent attorney Ishi 1) Length 72...Cylinder skin IP 3 Valve stirrup 20 - easily deformable part (b) Figure 2 (b) et al. Figure 3 g4 (G) (b) Figure 115 Figure 6WJ Figure 7(b)
Claims (1)
に接触することで排気口を閉じる弁蓋とからなる急速排
気弁であって、筒体における弁蓋が接触する先端部の弾
性係数が他の部分より小さくされていることを特徴とす
る血圧計用急速排気弁。(1) A quick exhaust valve consisting of a rubber cylindrical body arranged at the exhaust port and a valve lid that closes the exhaust port by contacting the tip end surface of the cylindrical body, and the valve lid of the cylindrical body contacts A quick exhaust valve for a blood pressure monitor, characterized in that the elastic modulus of the tip part is smaller than that of other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1131950A JP2784040B2 (en) | 1989-05-25 | 1989-05-25 | Quick exhaust valve for sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1131950A JP2784040B2 (en) | 1989-05-25 | 1989-05-25 | Quick exhaust valve for sphygmomanometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02309926A true JPH02309926A (en) | 1990-12-25 |
| JP2784040B2 JP2784040B2 (en) | 1998-08-06 |
Family
ID=15070000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1131950A Expired - Lifetime JP2784040B2 (en) | 1989-05-25 | 1989-05-25 | Quick exhaust valve for sphygmomanometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2784040B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007325739A (en) * | 2006-06-07 | 2007-12-20 | Fukuda Denshi Co Ltd | Exhaust valve for sphygmomanometer and sphygmomanometer using the same |
| JP2009063119A (en) * | 2007-09-07 | 2009-03-26 | Hosiden Corp | Solenoid valve |
| JP6154505B1 (en) * | 2016-03-10 | 2017-06-28 | 優盛医学科技股▲ふん▼有限公司 | Exhaust pressure relief device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126138A (en) * | 1983-12-14 | 1985-07-05 | 松下電工株式会社 | Exhaust valve of hemomanometer |
-
1989
- 1989-05-25 JP JP1131950A patent/JP2784040B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126138A (en) * | 1983-12-14 | 1985-07-05 | 松下電工株式会社 | Exhaust valve of hemomanometer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007325739A (en) * | 2006-06-07 | 2007-12-20 | Fukuda Denshi Co Ltd | Exhaust valve for sphygmomanometer and sphygmomanometer using the same |
| US8715198B2 (en) | 2006-06-07 | 2014-05-06 | Fukuda Denshi Co., Ltd. | Sphygmomanometer exhaust valve and sphygmomanometer using the same |
| JP2009063119A (en) * | 2007-09-07 | 2009-03-26 | Hosiden Corp | Solenoid valve |
| JP6154505B1 (en) * | 2016-03-10 | 2017-06-28 | 優盛医学科技股▲ふん▼有限公司 | Exhaust pressure relief device |
| JP2017160998A (en) * | 2016-03-10 | 2017-09-14 | 優盛医学科技股▲ふん▼有限公司 | Exhaust pressure release device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2784040B2 (en) | 1998-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3591731B2 (en) | Flow control valve | |
| US20050047940A1 (en) | Pump provided with exaust valve device and hemodynamometer incorporating the same | |
| EP1021656A1 (en) | Pneumatic valve actuator | |
| JPH02309926A (en) | Quick exhaust valve for hemadynamometer | |
| JPH07158757A (en) | Micro-valve | |
| US7377756B2 (en) | Rapid exhausting mechanism in pump unit | |
| JPS6344622Y2 (en) | ||
| JPH0411750B2 (en) | ||
| JPH0874741A (en) | Valve, pump and tonometer | |
| JPH10184549A (en) | Small-sized pump | |
| JPH10184551A (en) | Small-sized pump | |
| JPH0451769Y2 (en) | ||
| JPH0326326Y2 (en) | ||
| JPH0357889A (en) | Diaphragm pump | |
| JPH048882Y2 (en) | ||
| JPS63267336A (en) | Pressure pump | |
| JP2001003870A (en) | Small pump | |
| JP2001200949A (en) | Solenoid valve | |
| JPH0357886A (en) | Pump with changeover valve | |
| JPS6438366U (en) | ||
| JP2521776Y2 (en) | Sealing mechanism for high vacuum equipment | |
| JPS635594B2 (en) | ||
| JPS6221482U (en) | ||
| JPH0347477U (en) | ||
| JPH0211754B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080522 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090522 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090522 Year of fee payment: 11 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090522 Year of fee payment: 11 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100522 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100522 Year of fee payment: 12 |