JPH0212988Y2 - - Google Patents
Info
- Publication number
- JPH0212988Y2 JPH0212988Y2 JP1984201466U JP20146684U JPH0212988Y2 JP H0212988 Y2 JPH0212988 Y2 JP H0212988Y2 JP 1984201466 U JP1984201466 U JP 1984201466U JP 20146684 U JP20146684 U JP 20146684U JP H0212988 Y2 JPH0212988 Y2 JP H0212988Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- motor
- air chambers
- numbered rows
- casing
- 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
- 208000004210 Pressure Ulcer Diseases 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 description 7
- 208000025865 Ulcer Diseases 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 231100000397 ulcer Toxicity 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 206010011985 Decubitus ulcer Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Invalid Beds And Related Equipment (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は褥瘡防止マツトに関するものである。[Detailed explanation of the idea] (Industrial application field) The present invention relates to a bed ulcer prevention mat.
（従来の技術）
一般に褥瘡防止マツトは患者が接触する部分を
可変にするために二室以上の空気室を連接してマ
ツトを形成し、これらの空気室に交互に空気を供
給させている。このような動作を行わせる手段と
して空気ポンプと空気室との間に流路交換装置を
設け、この切換装置により空気室への給気のサイ
クルを定めている。上記流路切換装置として通常
電磁弁が用いられている（特開昭55−5604号な
ど）。また電磁弁の他に第４図ａ，ｂに断面図及
びＡ−Ａ矢視図で示すように平たい円筒の側壁に
空気導入口１、円筒底壁に複数の空気導出口２，
３、内部に半円板状の弁４、円筒上壁に該円板状
の弁を回転させるためのモータ５の回転軸６を貫
通させる軸穴７を設け、該軸穴に回転軸を挿入し
て該軸先端に取着した半円板状の弁により空気導
出口を開閉する外部駆動型の空気流路切換装置も
提案されている。（実公昭56−46739号など）
（考案が解決しようとする問題点）
しかしながら電磁弁は流路の切換時に弁が弁座
と当接するとき金属音が発生するが、この音は長
期寝たきりの患者にとつては耳ざわりで苦痛を感
じるものである。また電磁弁は高価であること、
及びかさ高いことなどから安価で、かつコンパク
トな褥瘡防止マツトにとつて実用性の点で問題で
あつた。また後者の外部駆動型の流路切換装置は
半円板状の弁が空気導出口２，３にひつかかるこ
となく滑らかに回転し、かつ該導出口を着実に覆
つて流路を閉鎖させるために、導出口の縁になめ
らかな突出体８を設けること、および円板状の弁
４をうまく導出口に密着させるために同弁の高度
の工作精度が必要であり、またモータの駆動軸６
を貫通させるための軸穴７は空気が漏れることの
ないようにシール材９を設ける必要があるなど、
構造が複雑でコスト高になるという問題があつ
た。また、円筒の底壁に複数の導出口を設けるた
めにはどうしても底面が大きくなりかさ高にな
る。さらにシール材９は摩耗しやすく、軸穴７か
らの空気の漏れる長期にわたつて完全に防ぐこと
には不安があるなどの問題があつた。(Prior Art) In general, bedsore prevention mats are formed by connecting two or more air chambers to form a mat, and air is alternately supplied to these air chambers in order to vary the area in contact with the patient. As a means for performing such an operation, a flow path switching device is provided between the air pump and the air chamber, and the cycle of air supply to the air chamber is determined by this switching device. A solenoid valve is usually used as the flow path switching device (Japanese Patent Application Laid-Open No. 55-5604, etc.). In addition to the solenoid valve, as shown in cross-sectional views and A-A arrow views in Figures 4a and 4b, an air inlet 1 is provided on the side wall of the flat cylinder, and a plurality of air outlet ports 2 are provided on the bottom wall of the cylinder.
3. A semi-disc-shaped valve 4 is provided inside, a shaft hole 7 is provided in the upper wall of the cylinder through which a rotating shaft 6 of a motor 5 for rotating the disc-shaped valve passes, and the rotating shaft is inserted into the shaft hole. An externally driven air flow switching device has also been proposed in which an air outlet is opened and closed by a semicircular valve attached to the tip of the shaft. (Utility Model Publication No. 56-46739, etc.) (Problem to be solved by the invention) However, when the solenoid valve makes contact with the valve seat when switching the flow path, a metallic sound is generated. For some people, the sound of it is painful. Also, solenoid valves are expensive;
This poses a problem in terms of practicality for an inexpensive and compact anti-bedsore mat due to its bulkiness and bulkiness. In addition, in the latter externally driven flow path switching device, the semi-disc-shaped valve rotates smoothly without hitting the air outlet ports 2 and 3, and steadily covers the air outlet ports to close the flow path. In addition, it is necessary to provide a smooth protrusion 8 on the edge of the outlet port, and to ensure that the disc-shaped valve 4 is in close contact with the outlet port, a high degree of machining precision is required.
It is necessary to provide a sealing material 9 in the shaft hole 7 to prevent air from leaking, etc.
The problem was that the structure was complicated and the cost was high. Further, in order to provide a plurality of outlet ports in the bottom wall of the cylinder, the bottom surface inevitably becomes large and bulky. Furthermore, the sealing material 9 is easily worn out, and there are concerns about completely preventing air leakage from the shaft hole 7 over a long period of time.
（問題点を解決するための手段）
本考案者らは従来の流路切換装置を有する褥瘡
防止マツトの問題点を解消するため鋭意検討した
結果本考案に到達したものである。(Means for Solving the Problems) The inventors of the present invention have arrived at the present invention as a result of intensive studies to solve the problems of conventional pressure ulcer prevention mats having a flow path switching device.
すなわち本考案は、上部に空気洩出孔が穿設さ
れた多数の空気室を配列してマツトを構成し、偶
数列の空気室と奇数列の空気室にそれぞれパイプ
を接続して、該パイプをモータが収容された円筒
状ケーシングの周壁に設けられた２ケの空気導出
口に接続し、かつ該ケーシングの底壁に設けられ
た空気導入口を空気ポンプと連結し、しかも該モ
ータの回転軸に弾性シートを取着するとともに、
該モータの回転によりケーシング内壁を摺動しな
がら回転する弾性シートが、該２ケの空気導出口
を間欠的に開閉して、偶数列の空気室と奇数列の
空気室を交互に膨張、収縮させるよう構成した褥
瘡防止マツトである。 That is, in the present invention, a mat is constructed by arranging a large number of air chambers with air leak holes in the upper part, and connecting pipes to the air chambers in even-numbered rows and the air chambers in odd-numbered rows, respectively. is connected to two air outlet ports provided on the peripheral wall of the cylindrical casing in which the motor is housed, and the air inlet port provided on the bottom wall of the casing is connected to an air pump, and the rotation of the motor Attaching an elastic sheet to the shaft,
An elastic sheet that rotates while sliding on the inner wall of the casing due to the rotation of the motor intermittently opens and closes the two air outlet ports to alternately inflate and deflate the air chambers in the even-numbered rows and the air chambers in the odd-numbered rows. This is a bedsore-preventing mat configured to prevent pressure ulcers.
（実施例）
次に本考案の褥瘡防止マツトに使用される流路
切換装置の一実施例を図面にて説明する。第１図
ａ，ｂは流路切換装置の断面図及びA′−Ａ矢視
図であり、円筒状ケーシング２２の底壁２０に空
気導入口２１を、円筒側面に空気導出口２３，２
４を設けている。またこの円筒状ケーシングの内
部にはモータ２５と該モータにより円筒内側面２
６に接触して、内壁を掃くように回転し該空気導
出口２３，２４を間欠的に覆う弾性シート２７と
からなる弁がモータの回転軸にボルトナツト等で
取着されている。上記モータ２５はケーシング内
に設けた軸受に取着される。またケーシングは２
分割され、フランジで一体化されている。２８は
モータの振動を吸収する防振材である。(Example) Next, an example of the flow path switching device used in the bedsore prevention mat of the present invention will be described with reference to the drawings. Figures 1a and 1b are a cross-sectional view and a view taken along arrow A'-A of the flow path switching device.
There are 4. Moreover, inside this cylindrical casing, a motor 25 and a cylindrical inner surface 2 are provided by the motor.
A valve is attached to the rotating shaft of the motor with bolts and nuts or the like.The elastic sheet 27 rotates in contact with the air outlet 6 and sweeps the inner wall, and intermittently covers the air outlet ports 23 and 24. The motor 25 is attached to a bearing provided inside the casing. Also, the casing is 2
It is divided and integrated with flanges. 28 is a vibration isolating material that absorbs vibrations of the motor.
上記弾性シート弁２７は空気導出口を完全に被
覆する長さであればよく、通常ケーシングの内周
の1/3〜1/2を被覆する長さであればよい。このシ
ートはネオプレンなどのゴムおよび布などで補強
されたゴム材、ポリエチレン、ポリプロピレンな
どの弾性プラスチツクが用いられる。 The elastic seat valve 27 may have a length that completely covers the air outlet, and usually has a length that covers 1/3 to 1/2 of the inner circumference of the casing. This sheet is made of rubber such as neoprene, a rubber material reinforced with cloth, or an elastic plastic such as polyethylene or polypropylene.
第２図は空気導出口２３，２４を円筒状ケーシ
ング２２の側壁の上下に並べて設けた装置の例で
あり、この装置ではモータ２５に取着された回転
軸を長くして、該回転軸の空気導入口に対応する
位置に弾性シート２７が取着されている。 FIG. 2 shows an example of a device in which air outlet ports 23 and 24 are arranged vertically on the side wall of a cylindrical casing 22. In this device, the rotating shaft attached to the motor 25 is lengthened. An elastic sheet 27 is attached at a position corresponding to the air inlet.
第３図は流路切換装置を用いた褥瘡防止マツト
の平面図であり、多数の空気室から構成され、か
つ空気洩出孔を表面に穿設したマツトＡの偶数列
の空気室と奇数列の空気室がパイプ３０，３１で
流路切換装置Ｂの空気導出口２３，２４に連結さ
れている。また該装置の空気導入口２１はパイプ
３２を介して空気ポンプＣに連結されている。上
記流路切換装置を構成するハウジング内に収容さ
れた低速モータの回転によりハウジング側壁に接
触して回転する弾性シール材はハウジング側壁に
設けた２つの空気導出口２３，２４を交互に開閉
させて、偶数列の空気室と奇数列の空気室に交互
に空気を供給する。空気室への空気の供給を停止
すると空気室の空気が該空気室の表面に穿設され
た微細孔より洩出して、この空気室は収縮する。
その間他の空気室は空気が供給されて膨張する。
上記モータの回転によりハウジング内の偶数列と
奇数列への空気導出口を交互に開閉することによ
り偶数列の空気室と奇数列の空気室を交互に膨
張・収縮させることができる。 Fig. 3 is a plan view of a bedsore prevention mat using a flow path switching device, and shows the air chambers in even rows and the odd rows of mat A, which is composed of a large number of air chambers and has air leak holes on the surface. The air chambers are connected to air outlet ports 23 and 24 of the flow path switching device B through pipes 30 and 31. Further, the air inlet 21 of the device is connected to an air pump C via a pipe 32. The elastic sealing material, which rotates in contact with the side wall of the housing by the rotation of a low-speed motor housed in the housing constituting the flow path switching device, alternately opens and closes the two air outlet ports 23 and 24 provided on the side wall of the housing. , air is alternately supplied to the air chambers in even-numbered rows and the air chambers in odd-numbered rows. When the supply of air to the air chamber is stopped, the air in the air chamber leaks through the fine holes formed in the surface of the air chamber, causing the air chamber to contract.
Meanwhile, other air chambers are supplied with air and expand.
The rotation of the motor alternately opens and closes the air outlet ports to the even and odd rows in the housing, thereby making it possible to alternately expand and contract the air chambers in the even rows and the air chambers in the odd rows.
（効果）
以上のように本考案の褥瘡防止マツトに使用す
る流路切換装置はモータ回転軸のまわりのシール
が不要であるので空気漏れを起すことが少なく、
空気導出口を覆う弁がやわらかい弾性体であるの
で導出口や弁の工作精度は比較的緩かでも充分に
機能を発揮し、かつ空気導出口が円筒の側壁に設
置されているのでケーシングがコンパクトであ
り、弾性シート弁が滑かに円筒内側面上をすべる
だけであるので流路切換の音もなく静粛な褥瘡防
止マツトである。(Effects) As described above, the flow path switching device used in the bed ulcer prevention mat of the present invention does not require a seal around the motor rotation shaft, so air leaks are less likely to occur.
The valve that covers the air outlet is made of a soft elastic material, so it functions satisfactorily even if the machining accuracy of the outlet and valve is relatively loose, and the casing is compact because the air outlet is installed on the side wall of the cylinder. Since the elastic seat valve simply slides smoothly on the inner surface of the cylinder, there is no sound of switching the flow paths, making it a quiet anti-bedsore mat.
第１図ａ，ｂは本考案の褥瘡防止マツトに使用
する流路切換装置の断面図及びそのＡ−Ａ矢視断
面図であり、第２図は流路切換装置の他の例を示
す装置の断面図であり、第３図は褥瘡防止マツト
の平面図であり、第４図ａ，ｂは従来の流路切換
装置の断面図及びそのＡ−Ａ矢視断面図である。
２２……円筒状ケーシング、２１……空気導入
口、２５……モータ、２３，２４……空気導出
口。
Figures 1a and b are a sectional view and a cross-sectional view taken along the line A-A of the flow path switching device used in the bed ulcer prevention mat of the present invention, and Figure 2 is a device showing another example of the flow path switching device. FIG. 3 is a plan view of the anti-bedsore mat, and FIGS. 4a and 4b are a sectional view of a conventional flow path switching device and its sectional view taken along the line A-A. 22... Cylindrical casing, 21... Air inlet, 25... Motor, 23, 24... Air outlet.
Claims (1)
配列してマツトを構成し、偶数列の空気室と奇数
列の空気室にそれぞれパイプを接続して、該パイ
プをモータが収容された円筒状ケーシングの周壁
に設けられた２ケの空気導出口に接続し、かつ該
ケーシングの底壁に設けられた空気導入口を空気
ポンプと連結し、しかも該モータの回転軸に弾性
シートを取着するとともに、該モータの回転によ
りケーシング内壁を摺動しながら回転する弾性シ
ートが該２ケの空気導出口を間欠的に開閉して偶
数列の空気室と奇数列の空気室を交互に膨張、収
縮させるよう構成したことを特徴とする褥瘡防止
マツト。 A mat is constructed by arranging a large number of air chambers with air leak holes in the upper part, and connecting pipes to the air chambers in even-numbered rows and the air chambers in odd-numbered rows, respectively. The motor is connected to two air outlet ports provided on the peripheral wall of the cylindrical casing, and the air inlet port provided on the bottom wall of the casing is connected to an air pump, and an elastic sheet is attached to the rotating shaft of the motor. At the same time, an elastic sheet that rotates while sliding on the inner wall of the casing due to the rotation of the motor intermittently opens and closes the two air outlet ports, alternately opening the air chambers in the even-numbered rows and the air chambers in the odd-numbered rows. A bedsore-preventing mat characterized by being configured to expand and contract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984201466U JPH0212988Y2 (en) | 1984-12-28 | 1984-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984201466U JPH0212988Y2 (en) | 1984-12-28 | 1984-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61115532U JPS61115532U (en) | 1986-07-21 |
| JPH0212988Y2 true JPH0212988Y2 (en) | 1990-04-11 |
Family
ID=30763283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984201466U Expired JPH0212988Y2 (en) | 1984-12-28 | 1984-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212988Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439219A (en) * | 1978-06-05 | 1979-03-26 | Tlv Co Ltd | Valve employing flexeble bag shaped valve member |
| JPS5518008U (en) * | 1978-07-21 | 1980-02-05 |
-
1984
- 1984-12-28 JP JP1984201466U patent/JPH0212988Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439219A (en) * | 1978-06-05 | 1979-03-26 | Tlv Co Ltd | Valve employing flexeble bag shaped valve member |
| JPS5518008U (en) * | 1978-07-21 | 1980-02-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61115532U (en) | 1986-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2328308A1 (en) | Servo motor operated rotary bypass valve | |
| US4188978A (en) | Valve mechanism | |
| JPH10110706A (en) | Rotary type hydraulic actuator | |
| JPS6015828B2 (en) | diaphragm valve | |
| JPH0212988Y2 (en) | ||
| JP2004204792A (en) | Intake device for internal combustion engine | |
| JPS58138867U (en) | valve seat | |
| JP2681241B2 (en) | Fluid on-off valve | |
| JPH02264192A (en) | Reversible turbine pump | |
| JP3777313B2 (en) | Rotary valve seal structure in variable intake system | |
| JP2517440Y2 (en) | Discharge valve | |
| JP2526295Y2 (en) | Rotary valve | |
| JPS6197597U (en) | ||
| JPS6127375A (en) | Ball valve | |
| JPH02112750U (en) | ||
| JPH0247325Y2 (en) | ||
| JPH0471884U (en) | ||
| JPS5834305Y2 (en) | liquid pump | |
| JPS62152731U (en) | ||
| JPH0714272U (en) | Valve seat structure | |
| JPS63104623A (en) | Liquid filter | |
| JPS60182390A (en) | Sealing apparatus for vertical pump | |
| TUTHILL | Dual diaphragm tank with telltale drain(Patent Application) | |
| JPH0245515Y2 (en) | ||
| JPS595256Y2 (en) | ball valve |