EP0091843B1 - Anschlussstück für Atmungsgerät, zur Verbindung der Maske mit einer Gasflasche - Google Patents

Anschlussstück für Atmungsgerät, zur Verbindung der Maske mit einer Gasflasche Download PDF

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Publication number
EP0091843B1
EP0091843B1 EP83400542A EP83400542A EP0091843B1 EP 0091843 B1 EP0091843 B1 EP 0091843B1 EP 83400542 A EP83400542 A EP 83400542A EP 83400542 A EP83400542 A EP 83400542A EP 0091843 B1 EP0091843 B1 EP 0091843B1
Authority
EP
European Patent Office
Prior art keywords
flap
mask
connector
sensor
chamber
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
Application number
EP83400542A
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English (en)
French (fr)
Other versions
EP0091843A1 (de
Inventor
Jacques Biard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fenzy SAS
Original Assignee
Fenzy SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fenzy SAS filed Critical Fenzy SAS
Publication of EP0091843A1 publication Critical patent/EP0091843A1/de
Application granted granted Critical
Publication of EP0091843B1 publication Critical patent/EP0091843B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • A62B9/022—Breathing demand regulators
    • A62B9/025—Breathing demand regulators with tilting opening action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/908—Respirator control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y10T137/7766—Choked passage through main valve head

Definitions

  • the present invention relates to a mountable and dismountable connection nozzle for insulating breathing apparatuses in open circuit, belonging to the device for connecting the mask to a bottle of pressurized breathing gas.
  • connection end piece that can be mounted and dismounted on the snout of a respiratory mask, said end piece having an interior chamber adapted to communicate with the mask in the mounting position, a connection pipe to a source of pressurized respiratory gas, a valve for enabling or preventing the flow of gas under pressure, a pressure gauge sensitive to the relative pressure prevailing inside the chamber and means for controlling said valve by pressure gauge.
  • connection devices include one or two stage regulators, and, in the case of two stage regulators, the second is fixed to the mask. This second stage is then integrated into a connection endpiece which is either fixed on the snout of the mask, or more generally mountable and dismountable on it.
  • the operation is provided under overpressure, so as to avoid the introduction of toxic gas inside the mask.
  • connection devices have been designed which allow manual action to pass first through an operating phase under vacuum, then through the operating phase under overpressure.
  • the end piece comprises a pressure gauge membrane connected to a breathing gas inlet valve by means of a servo means having the form of a rod pivoting about an axis and transmitting the movement of the membrane to the valve.
  • Mechanical means for blocking the valve is provided in the form of a cam acting on a spring, which comes to bear on the rod at the opposite end of the valve. It is thus possible, when the mask is not used, to block the valve which would otherwise be open if it is desired to obtain an operation of the mask under overpressure.
  • Document GB-A-2 060 402 describes a similar system also comprising an external control means blocking, in a closed position, the respiratory gas supply valve.
  • This possibility is very dangerous and rightly sometimes forbidden, because it does not guarantee against false maneuvers causing the setting in depression position during the intervention period of the user in the dangerous zone.
  • the invention aims to remedy these drawbacks.
  • the tip according to the invention is characterized in that it comprises a free or depressed probe according to whether the tip is disassembled or mounted on the mark, this probe cooperating with means modifying the operating regime acting on the means of servo-control, so that, in a first position in which the feeler is free, the modifying means are adapted to establish an operating regime in depression in which, at rest, the pressure on either side of the manometric means is identical and the valve is closed, a vacuum on the face of the manometric means in communication with the chamber allowing the valve to open and in a second position in which the probe is depressed, the modifying means are adapted to establish an operating regime in overpressure in which, at rest, the pressure on the face of the manometric means in communication with the chamber is greater than the pressure on the opposite face and the valve is closed, l modifying means comprising in particular an elastic means on which the feeler acts directly or indirectly when it is pressed in by placing the end piece on the snout, said elastic means cooperating with the valve, the overpressure formed by
  • the endpiece has a device which makes it possible to be automatically in depression when it is not connected to the mask and in overpressure from the connection, makes it possible to avoid all the drawbacks mentioned above.
  • the end piece 1 which can be mounted and dismounted on the snout 3 of a respiratory mask, comprises an interior chamber 11 adapted to communicate with the mask in the mounting position, a connection tube 12 to a gas source pressure breathing (not shown), a valve 13 to allow or prevent the flow of gas under pressure, a pressure gauge 14 sensitive to the pressure relative to the interior of the chamber 11, and means for controlling the valve 13 to the pressure gauge.
  • these control means consist of a lever 15 slightly inclined relative to the longitudinal axis of the valve 13 and fixed to it, and a rod 16 fixed to the membrane 14 and standing in the chamber 11 perpendicular to this membrane, the lever 15 and the rod 16 being secured so that a depression in the chamber 11 causes the valve 13 to move away from its seat 131 despite the action of a return spring 132, at least in a region of the contact surface between these two members 13, 131.
  • the end piece 1 comprises a probe 17 protruding outside the chamber 11 and movable in translation between a "free” rest position which it occupies when the end piece is not connected to the snout 3, and a "pushed in” position when the tip is connected to the snout;
  • this probe 17 is associated with the control means by means of modifiers of the operating regime, which are adapted to establish an operating regime in depression or in overpressure depending on whether the probe 17 is respectively in the free or depressed position.
  • the modifying means comprise a bent spring 18, with two branches, consisting of a metal wire of the piano string type, mounted pivoting around a central axis 181 carried by a plate 19 passing through the chamber 11 substantially parallel to the position occupied by the lever 15 when the valve 13 is applied to its seat.
  • the spring 18 is positioned in such a way that, on the one hand, one of its branches is close to the end of the probe opposite that which protrudes from the chamber, when it is in the "free” position, and that the other branch is then close to the lever 15 for actuating the valve, and on the other hand that the first branch is pushed by the end of the probe into the "depressed” position, the second branch then pushing the lever 15 laterally to move the valve away from its seat on part of the contact surface of these two bodies.
  • the plate 19 can also carry abutment members to limit the travel of the first branch of the spring 18 during its tilting around the pivot axis 181 under the action of the feeler 17; it is, of course, provided with an opening 191 for the passage of the rod 16 and possibly for a distribution of the pressures on both sides, this distribution being able to be ensured by the fact that the opening 191 has a substantially cross section greater than that of the rod 16, or / and by additional openings (not shown in Figures 1 and 2).
  • the plate 19 also comprises, in the region of the pressure distribution opening, a deflecting tab 192 intended to channel the air leaving the valve and to cause a Venturi effect to temporarily create a depression near the membrane 14 when this is necessary, as will be seen later.
  • the end piece 1 also includes a direct passage pusher 21 provided for manually actuating the membrane 14 and consequently the control means 15, 16 in the direction of opening of the valve 13 if necessary.
  • the probe 17 is mounted movable in translation in a support barrel 22 intended to penetrate into a receptacle piece 31 provided in the snout 3 of the mask, more specifically inside a fixing ring 32.
  • the receptacle 31 comprises a front abutment shoulder 311 intended, when the tip is mounted on the snout, to cause the depression of the probe 17; to seal the connection, an O-ring 312 is provided inside the receptacle 31.
  • an interlocking member 23 constituted in the form of an elastic collar with levers provided with an external peripheral lip 231 intended to be housed in an annular groove 313 produced in the receptacle 31 to maintain in position mounting by fitting the nozzle 1 in the snout 3 of the mask.
  • the valve 13 is kept applied against its seat by the spring 132 and the overpressure in the connection tube 12, and the end piece does not deliver respiratory gas. Only a vacuum in the chamber 11, or an action on the direct passage pusher 21, causes the lever 15 to tilt and, consequently, the valve 13 to open, the spring 18 being out of contact with the lever 15 because the probe 17 is in the free position. It is therefore an operating system in depression.
  • the feeler 17 goes into the depressed position, and causes the spring 18 which actuates the lever 15 to tilt, which causes the valve 13 to open; the action of the spring 18 is then compensated by the overpressure which is exerted on the membrane 14, which closes the valve 13, which does not open again until the overpressure tends to decrease during an inspiration.
  • the structure and arrangement of the nozzle allow that, during a violent inspiration of the user, there exists under the membrane a sufficient depression to maintain the opening of the valve 13 and, therefore, a very slight overpressure in the nozzle and in the mask, even preventing in this case the introduction of harmful ambient gas against which the respiratory system is intended to protect itself. There is therefore permanently operating at overpressure.
  • the nozzle can operate as a permanent vacuum valve, or as a screw-in valve, by simple modification of some of the parts making it up (the probe 17 in the first case, the member 'nesting 23 in the second).
  • the end piece 1 comprises a micro-regulator of a known type housed in a housing 10 the upper part of which has been shown torn off, comprising, in communication with the connection pipe 12 to the source of respiratory gas, a respiratory gas inlet channel whose external walls constitute the seat of a valve (not visible in FIGS. 3 to 5) produced in the form of a flexible diaphragm short-circuited by a nozzle calibrated; the surface of the diaphragm delimited by the intake channel on the side of this channel being smaller than on the other side, the diaphragm is therefore normally in abutment against its seat.
  • the side of the diaphragm opposite the intake channel defines a chamber where the calibrated nozzle opens; in this chamber, also opens a control nozzle 41 communicating on the one hand with a control chamber 42 and, on the other hand, with the outside by a channel 43;
  • this control chamber 42 comprises on one side the manometric control membrane 14, subjected on the side opposite to the control chamber 42 to the action of a return spring 45 placed in an internal control chamber 46 in communication with the inside of the mask snout; the manometric control diaphragm 44 is normally pushed by the return spring 45 so as to close off the control nozzle 41;
  • a communication tube 47 connects the space surrounding the intake channel, also inside the snout of the mask, all of the cavities in direct communication with the snout constituting the chamber 11.
  • the modifying return means of the operating regime also include a lever 51 bearing against a shoulder 52 produced on the outer wall of the control chamber 46, this lever being actuated at one of its ends by the feeler 17 and actuating at its other end, produced in the form of a fork, a slider 53 interposed between the return spring 45 and the additional spring 50, by means of a sliding rod 54 connecting the two branches of the fork and secured to this slider 53; in practical terms, the movement of the wandering rod is allowed by slides made in the walls of the chamber 46.
  • the return spring 45 and the additional spring 50 are placed in series between the pressure gauge 14 and the screw adjustment 48.
  • the cursor 53 When the probe 17 is free, the cursor 53 is subjected to the action of the two springs, and these exert on the manometric membrane 14 a fraction of the total force exerted, in proportion to their respective stiffness; when the probe 17 is pressed, the lever 51 compresses the additional spring 50, and the return spring 45 then acts practically alone against the movement of the pressure gauge membrane 14.
  • the two springs 45, 50 are in service and there is a vacuum operation
  • the additional spring 50 of the modifying return means of the speed of operation is practically put out of service, and only the return spring 45 acting directly on the control membrane is in service and there is an overpressure operation.
  • the endpiece may also include additional rings allowing the connection of the input of the micro-regulator to the mask, for example by screwing or fitting.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (11)

1. Auf dem Mundstück einer Atmungsmaske anbringbares und von dieser abnehmbares Ansatzverbindungsstück mit einer Innenkammer (11), die geeignet ausgestaltet ist, um in der Anbringstellung mit der Maske in Verbindung zu sein, einem Verbindungsstutzen zu einer Quelle von Atmungsgas unter Druck (12), eienr Klappe (13), um den Durchsatz an Gas unter Druck zu erlauben oder zu untersagen, einem manometrischen Mittel (14), welches auf den relativen Druck empfindlich ist, der im Inneren der Kammer (11) herrscht, und Steuermitteln (15, 16; 41, 42) der Klappe (13) für das manometrische Mittel (14), dadurch gekennzeichnet, dass es einen freien oder fest angebrachten Fühler aufweist, je nachdem ob das Ansatzstück (1) von der Maske abgenommen oder an dieser angebracht ist, wobei dieser Fühler mit Modifikatormitteln der Betriebsbedingung (18; 50, 51, 52, 53, 54, 45, 14) zusammenwirkt, die auf die Steuermittel (15, 16; 41, 42) derart wirken, dass in einer ersten Stellung, in welcher der Fühler (17) frei ist, die Steuermittel (18; 50, 51, 52, 53, 54, 45, 14) geeignet sind, eine Betriebsbedingung mit Unterdruck zu bilden, in welcher in Ruhe der Druck auf beiden Seiten des manometrischen Mittels (14) identisch ist und die Klappe (13) geschlossen ist, wobei ein Unterdruck auf der Fläche des manometrischen Mittels (14) in Verbindung mit der Kammer (11) das Öffnen der Klappe erlaubt, und in einer zweiten Stellung, in welcher der Fühler (17) fest angebracht ist, die Modifikatormittel (18; 50, 51, 52, 53, 54, 45, 14) geeignet sind, einen Betriebszustand mit Überdruck zu bilden, in welchem in Ruhe der Druck auf die Fläche des manometrischen Mittels (14) in Verbindung mit der Kammer (11) grösser als der Druck auf die gegenüberliegende Fläche ist und die Klappe (13) geschlossen ist, wobei die Modifikatormittel (18; 50, 51, 52, 53, 54, 45, 14) insbesondere ein elastisches Mittel (18; 50) aufweisen, auf welches direkt oder indirekt der Fühler (17) einwirkt, wenn er durch das Aufbringen des Ansatzstückes auf das Mundstück fest angebracht ist, wobei dieses elastische Mittel (18; 50) mit der Klappe (13) zusammenwirkt und der durch Einführen von Gas unter Druck gebildete Überdruck auf die Fläche des manometrischen Mittels (14) in Verbindung mit der Kammer (11) einwirkt, um die Klappe (13) zu schliessen und zum Ruhezustand bei Überdruck zu führen, wobei eine Verminderung des Druckes auf die Oberfläche in Verbindung mit der Kammer (11) das Öffnen der Klappe (13) erlaubt.
2. Ansatzstück nach Anspruch 1, dadurch gekennzeichnet, dass die Modifikatormittel für die Betriebsbedingung mindestens ein elastisches Mittel (18) aufweisen, auf welches der Fühler (17) direkt wirkt, wenn das Ansatzstück (1) an der Maske angebracht ist, um also die Steuermittel (15, 16) im Hinblick auf das Öffnen der Klappe (13) für einen Betrieb bei Überdruck zu betätigen.
3. Ansatzstück nach Anspruch 2, dadurch gekennzeichnet, dass das elastische Mittel (18) eine gekrümmte, um eine Schwenkachse (181) bewegliche Feder ist.
4. Ansatzstück nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Steuermittel einen Hebel (15) aufweisen, der an einer Klappe (13) befestigt ist, und einen Schaft (16) aufweisen, der mit einer manometrischen Membran (14) formschlüssig verbunden ist.
5. Ansatzstück nach Anspruch 1, dadurch gekennzeichnet, dass die Modifikatormittel für die Betriebsbedingung ein elastisches Mittel (50) aufweisen, wobei der Fühler (17) auf andere Modifikatormittel (51, 52, 53, 54, 45, 14) wirkt, um das Ausserbetriebsetzen des elastischen Mittels (50) hervorzurufen, wenn das Ansatzstück (1) auf der Maske angebracht ist, im Hinblick auf das Öffnen der Klappe für einen Betrieb bei Überdruck.
6. Ansatzstück nach Anspruch 5, dadurch gekennzeichnet, dass die Modifikatormittel mindestens ein Rückführorgan (51) der Bewegung des Fühlers aufweisen, um das elastische Mittel (50) ausser Betrieb zu setzen, wenn der Fühler in der fest angebrachten Stellung Ist.
7. Ansatzstück nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass die Modifikatormittel einen beweglichen Schieber (53) aufweisen, welcher auf das elastische Mittel (50) wirkt.
8. Ansatzstück nach einem der Ansprüche 1, 5, 6 oder 7, dadurch gekennzeichnet, dass die Steuermittel eine Düse (41) aufweisen, welche in einer Steuerkammer (42) mündet, welche auf einer Seite durch eine manometrische Steuermembran (14) begrenzt ist.
9. Ansatzstück nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Fühler (17) in einem Stützrohr (22) verschiebbar ist, um mit einem frontalen Anschlag (311) zusammenzuwirken, welcher im Mundstück (3) der Maske vorgesehen ist.
10. Ansatzstück nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass es ein Einlassungsorgan (23) aufweist, welches in der Form eines elastischen Kragens mit Hebeln gebildet ist.
11. Atmungsgerät, welches mit einem Ansatzstück gemäss einem der Ansprüche 1 bis 10 ausgestattet ist.
EP83400542A 1982-04-02 1983-03-16 Anschlussstück für Atmungsgerät, zur Verbindung der Maske mit einer Gasflasche Expired EP0091843B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8205706A FR2511252A1 (fr) 1982-04-02 1982-04-02 Embout pour appareil respiratoire pour le raccordement du masque a une bouteille de gaz respiratoire
FR8205706 1982-04-02

Publications (2)

Publication Number Publication Date
EP0091843A1 EP0091843A1 (de) 1983-10-19
EP0091843B1 true EP0091843B1 (de) 1987-05-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400542A Expired EP0091843B1 (de) 1982-04-02 1983-03-16 Anschlussstück für Atmungsgerät, zur Verbindung der Maske mit einer Gasflasche

Country Status (5)

Country Link
US (1) US4693242A (de)
EP (1) EP0091843B1 (de)
JP (1) JPS58173565A (de)
DE (1) DE3371477D1 (de)
FR (1) FR2511252A1 (de)

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DE4237294C1 (de) * 1992-11-05 1993-11-25 Draegerwerk Ag Atemschutzmaske mit Überdruck im Maskeninnenraum

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DE3539668A1 (de) * 1985-11-08 1987-05-21 Draegerwerk Ag Lungengesteuertes membranventil fuer atemschutzmasken
US4794943A (en) * 1988-05-27 1989-01-03 Figgie International Inc. Fluid control valve assembly
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FR2646089B1 (fr) * 1989-04-21 1991-09-27 Fenzy Sa Raccord intermediaire pour embout d'appareil respiratoire
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JPH0829751B2 (ja) * 1992-07-02 1996-03-27 株式会社グランブルー 潜水用呼吸装置におけるマウスピースユニット
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DE4418788A1 (de) * 1994-05-24 1995-11-30 Interspiro Gmbh Atemanschluß mit Lungenautomat
DE19644362A1 (de) * 1996-10-25 1998-05-07 Ludwig Kramer Verfahren und Vorrichtung zur ortsveränderlichen Benutzung eines Körpers
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DE19934045C2 (de) * 1999-07-16 2003-05-22 Auergesellschaft Gmbh Verbindung zwischen einer Atemschutzmaske und einem Atemschutzgerät
GB0028505D0 (en) * 2000-11-22 2001-01-10 Draeger Ltd Locking means
DE10159218C2 (de) * 2001-11-27 2003-11-13 Msa Auer Gmbh Anschlußstück für Atemschutzmasken und/oder Lungenautomaten
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US8025053B1 (en) * 2003-06-26 2011-09-27 Mine Safety Appliances Company Pressure regulator assembly
US8424528B2 (en) * 2004-01-14 2013-04-23 Weinmann Geräte für Medizin GmbH & Co. KG Ventilation device
JP4041848B2 (ja) * 2004-03-26 2008-02-06 興研株式会社 マスク
FR2884896B1 (fr) * 2005-04-26 2007-06-29 Prospection Et D Inv S Techniq Raccord d'etancheite et ensemble d'un organe de transmission, d'une cartouche de gaz et d'un adaptateur comprenant le raccord
FR2884749B1 (fr) * 2005-04-26 2007-06-29 Prospection Et D Inv S Techniq Carter de logement d'une source d'energie a actionnement manuel a macanismes d'ejection de la source
AU2008326425B2 (en) * 2007-11-19 2012-04-26 Sunmed Group Holdings, Llc Patient interface assembly for respiratory therapy
US8707954B2 (en) * 2008-10-09 2014-04-29 Daniel A. McCarthy Air/oxygen supply system and method
US8844521B2 (en) 2010-04-09 2014-09-30 Daniel A. McCarthy Air/oxygen ventilator system and method
US9498356B2 (en) 2012-12-19 2016-11-22 Cook Medical Technologies, LLC Flexible stent and delivery system
US9763814B2 (en) 2014-10-24 2017-09-19 Cook Medical Technologies Llc Elongate medical device
US10556074B2 (en) 2015-07-17 2020-02-11 Daniel A. McCarthy Artificial respiration system with timing control and automatic mask detection
EP3397353B1 (de) * 2015-12-30 2022-05-04 Scott Technologies, Inc. Atemschutzmaske mit luftsparschalter
US10478586B2 (en) 2016-03-02 2019-11-19 Daniel A. McCarthy Artificial respiration system and method having automatic mask detection
GB2575072B (en) 2018-06-27 2022-06-15 Draeger Safety Uk Ltd Demand regulator
US12078256B2 (en) * 2020-12-28 2024-09-03 Neptune Technology Group Inc. Oscillating valve
US20220282794A1 (en) * 2021-03-03 2022-09-08 Neptune Technology Group Inc. Diaphragm valve formed using additive manufacture
EP4389230A1 (de) * 2022-12-22 2024-06-26 Dräger Safety AG & Co. KGaA Lungennachfrageregler

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237294C1 (de) * 1992-11-05 1993-11-25 Draegerwerk Ag Atemschutzmaske mit Überdruck im Maskeninnenraum

Also Published As

Publication number Publication date
DE3371477D1 (en) 1987-06-19
JPH0428393B2 (de) 1992-05-14
US4693242A (en) 1987-09-15
FR2511252A1 (fr) 1983-02-18
FR2511252B1 (de) 1984-12-07
EP0091843A1 (de) 1983-10-19
JPS58173565A (ja) 1983-10-12

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