EP0204222A1 - Retaining device for fire-preventing doors - Google Patents
Retaining device for fire-preventing doors Download PDFInfo
- Publication number
- EP0204222A1 EP0204222A1 EP86106969A EP86106969A EP0204222A1 EP 0204222 A1 EP0204222 A1 EP 0204222A1 EP 86106969 A EP86106969 A EP 86106969A EP 86106969 A EP86106969 A EP 86106969A EP 0204222 A1 EP0204222 A1 EP 0204222A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- web
- locking device
- guide tube
- magnetic
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
Definitions
- the invention relates to a locking device for fire protection doors with an electromagnet, which has a magnet coil, an iron core movable inside a guide tube, a yoke and at least one adjustment disk closing the magnetic circuit, which is arranged on the guide tube.
- hold-open devices are used to hold fire protection doors and similar locks open. Such doors must close automatically in the event of a fire, but they must also be able to be closed manually. On the one hand, the adhesive force must be large enough so that the door does not close unintentionally when shaken. On the other hand, it must also not be too large, so that the actuating force does not become too large and the device may therefore be damaged.
- Such locking devices are usually actuated electromagnetically in such a way that an electromagnet operated with quiescent current holds the door open directly or preferably via a hydraulic system of a door closing device with a certain adhesive force. When the excitation current is switched off, i.e. in the event of a fire, the door closes.
- the object of the invention is to avoid the disadvantages described above in a locking device described in the introduction and to improve the locking device in such a way that neither a stabilized voltage is required nor different adjustment disks are necessary.
- the adjustment disk is designed as a spoke wheel-shaped web disk which has a circular ring with one or more webs running radially outwards.
- Such a matching disc has the advantage that the magnetic flux of the electromagnet provided with such a disc does not depend on the air gap between the disc and the iron core and the excitation power for the magnet coil.
- the air gap between the web disc according to the invention and the iron core can be very small, so that the inner diameter of the circular ring of the web disc expediently approximately the same, i.e. So is only a little larger than the outer diameter of the guide tube.
- the magnetic circuit of the locking device saturates part of the magnetic yoke, namely the web washer, when the excitation current is too high, that is to say when the holding force is too high, so that the holding force no longer occurs despite an increasing current increases.
- the magnetic circuit has a low air gap compared to known arrangements in which the adhesive force is adjusted by means of the air gap size, a considerably smaller excitation current is necessary for the required adhesive force. In this way, the necessary electrical excitation power can be reduced.
- the number of webs and the size of the web cross-section are expediently dimensioned such that the size of the magnetic flux corresponds to the desired adhesive force.
- the iron of the web washer is operated in a saturated state. Only the magnetic properties of the iron of the web disc and the size of the bars are decisive for the magnetic flux.
- Fig.1 the electromagnet is shown in section.
- the adjustment disc is shown on the left of this.
- a valve of the hydraulic system of the door closing device is to be kept closed with the actuating force K.
- the excitation current (not shown) flows through the magnet coil MS.
- the magnetic circuit is closed via the concentric yoke J (made of iron) and the adjusting disc AS.
- the adjustment disc AS has an air gap LS, which is decisive in the conventional manner in the adjustment in order to achieve the necessary adhesive force.
- the web disc SS is designed as a spoke wheel-shaped disc which has a circular ring KR with a plurality of webs ST which extend radially outwards.
- the cross section of all the webs ST is chosen so large that the iron used for the webs ST is saturated with the magnetic flux that occurs at the desired adhesive force (corresponds to the actuating force K). This magnetic flux can therefore no longer increase significantly even with a larger excitation current, so that the adhesive force cannot become excessively large.
- the electrical excitation power required to generate the desired magnetic flux decreases.
- the web disc in the area of the air gap e.g. can be thickened by a reinforcement ring VR. This makes it possible and economically justifiable to design the magnetic circuit so that the web saturation begins at the lower operating voltage limit and in this way a largely constant adhesive force is achieved in the entire operating voltage range.
- a comparison to adapt to different requirements is generally not necessary. If it is nevertheless necessary to make an adjustment, this can be done, for example, by cutting out a single web or a plurality of webs.
- the magnetic flux determining the adhesive force is determined by the excitation current and the magnetic resistance of the magnetic circuit. While the magnetic resistance in the known locking devices (see FIG. 1) depends on the sum of small air gaps that cannot be manufactured with sufficiently small tolerances, the magnetic flux in the locking device according to the invention is stabilized by the webs of the web washer saturating. The narrowly tolerable magnetic properties of the webs or the web disc and their dimensions are decisive for this effect, while the excitation power and the air gap dimensions play no significant role.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Special Wing (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Festellvorrichtung für Feuerschutztüren mit einem Elektromagneten, der eine Magnetspule, einen im Inneren eines Führungsrohrs beweglichen Eisenkem, ein Joch und zumindest eine den Magnetkreis - schließende Abgleichscheibe aufweist, die auf dem Führungsrohr angeordnet ist.The invention relates to a locking device for fire protection doors with an electromagnet, which has a magnet coil, an iron core movable inside a guide tube, a yoke and at least one adjustment disk closing the magnetic circuit, which is arranged on the guide tube.
In der Brandschutztechnik werden Feststellvorrichtungen benutzt, die Feuerschutztüren und ähnliche Abschlüsse in geöffnetem Zustand festhalten. Solche Türen müssen im Brandfall automatisch schließen, sie müssen jedoch auch manuell geschlossen werden können. Dazu muß einerseits die Haftkraft genügend groß sein, damit die Tür nicht etwa bei Erschütterungen ungewollt zugeht. Andererseits darf sie aber auch nicht zu groß sein, damit die Betätigungskraft nicht zu groß wird und daher die Vorrichtung womöglich beschädigt wird. Solche Feststellvorrichtungen werden in der Regel elektromagnetisch in der Weise betätigt, daß ein mit Ruhestrom betriebener Elektromagnet die Tür direkt oder vorzugsweise über eine Hydraulik einer Türschließvorrichtung mit bestimmter Haftkraft offenhält. Beim Abschalten des Erregerstroms, also im Brandfall, fällt die Tür zu.In fire protection technology, hold-open devices are used to hold fire protection doors and similar locks open. Such doors must close automatically in the event of a fire, but they must also be able to be closed manually. On the one hand, the adhesive force must be large enough so that the door does not close unintentionally when shaken. On the other hand, it must also not be too large, so that the actuating force does not become too large and the device may therefore be damaged. Such locking devices are usually actuated electromagnetically in such a way that an electromagnet operated with quiescent current holds the door open directly or preferably via a hydraulic system of a door closing device with a certain adhesive force. When the excitation current is switched off, i.e. in the event of a fire, the door closes.
Um eine gewünschte Haftkraft sicher zu erreichen, ist es bekannt, bei derartigen Feststellvorrichtungen den mit Ruhestrom betriebenen Elektromagneten mit einer konstanten Spannung zu betreiben. Eine weitere bekannte Anordnung für derartige Feststellvorrichtungen besteht darin, den für die gewünschte Haftkraft erforderlichen Magnetkreisfluß mit geeigneten Eisenscheiben (Abgleichscheiben) abzugleichen. Dazu sind eine Reihe von Abgleichscheiben mit unterschiedlich großem Luftspalt zwischen der Scheibe und dem Eisenkern erforderlich, die auf das Führungsrohr aufgesteckt werden, wobei durch Ausprobieren die geeignete Abgleichscheibe ausgewählt wird. Dieses ist umständlich und zeitaufwendig. Ferner ist es bekannt, in den Elektromagneten der Feststellvorrichtung einen Spannungsregler zu integrieren. Der Spannungsregler wird gegebenenfalls individuell abgeglichen und fängt Schwankungen der Versorgungsspannung auf. Eine weitere bekannte Möglichkeit ist dadurch gegeben, einen zweiten unabhängigen Auslösemechanismus einzubauen, der allein für das manuelle Auslösen zuständig ist.In order to reliably achieve a desired adhesive force, it is known to operate the electromagnet operated with quiescent current with a constant voltage in such locking devices. Another known arrangement for such locking devices consists in comparing the magnetic circuit flux required for the desired adhesive force with suitable iron disks (adjusting disks). This requires a series of adjustment discs with different air gaps between the disc and the iron core, which are attached to the guide tube, the appropriate adjustment disc being selected by trial and error. This is cumbersome and time consuming. It is also known to integrate a voltage regulator in the electromagnet of the locking device. The voltage regulator is adjusted individually if necessary and absorbs fluctuations in the supply voltage. Another known possibility is to install a second independent trigger mechanism that is solely responsible for manual triggering.
Aufgabe der Erfindung ist es, bei einer eingangs beschriebenen Feststellvorrichtung die oben geschilderten Nachteile zu vermeiden und die Feststellvorrichtung so zu verbessern, daß weder eine stabilisierte Spannung erforderlich ist, noch verschiedene Abgleichscheiben notwendig sind.The object of the invention is to avoid the disadvantages described above in a locking device described in the introduction and to improve the locking device in such a way that neither a stabilized voltage is required nor different adjustment disks are necessary.
Diese Aufgabe wird erfindungsgemäß bei der oben beschriebenen Feststellvorrichtung dadurch gelöst, daß die Abgleichscheibe als speichenradförmige Stegscheibe ausgebildet ist, die einen Kreisring mit einem oder mehreren, radial nach außen verlaufenden Stegen aufweist. Eine derartig ausgebildete Abgleichscheibe hat den Vorteil, daß der Magnetfluß des mit einer solchen Scheibe versehenen Elektromagneten nicht vom Luftspalt zwischen der Scheibe und dem Eisenkern und der Erregerleistung für die Magnetspule abhängt.This object is achieved in the above-described locking device in that the adjustment disk is designed as a spoke wheel-shaped web disk which has a circular ring with one or more webs running radially outwards. Such a matching disc has the advantage that the magnetic flux of the electromagnet provided with such a disc does not depend on the air gap between the disc and the iron core and the excitation power for the magnet coil.
Daher kann der Luftspalt zwischen der erfindungsgemäßen Stegscheibe und dem Eisenkern sehr klein sein, so daß zweckmäßigerweise der Innendurchmesser des Kreisrings der Stegscheibe annähernd gleich, d.h. also etwa nur ein bißchen größer als der Außendurchmesser des Führungsrohres ist.Therefore, the air gap between the web disc according to the invention and the iron core can be very small, so that the inner diameter of the circular ring of the web disc expediently approximately the same, i.e. So is only a little larger than the outer diameter of the guide tube.
Mit der erfindungsgemäßen Stegscheibe wird in vorteilhafter Weise erreicht, daß der Magnetkreis der Feststellvorrichtung bei zu großem Erregerstrom, also bei potentiell zu großer Haftkraft, ein Teil des Magnetjochs, nämlich die Stegscheibe, in Sättigung geht, so daß die Haftkraft trotz eines steigenden Stromes nicht mehr zunimmt. Ist zusätzlich, wie erfindungsgemäß oben beschrieben, der Magnetkreis luftspaltarm gegenüber bekannten Anordnungen, bei denen mittels der Luftspaltgröße die Haftkraft justiert wird, so ist für die erforderliche Haftkraft ein wesentlich kleinerer Erregerstrom notwendig. Auf diese Weise kann die notwendige elektrische Erregerleistung reduziert werden.With the web washer according to the invention, it is advantageously achieved that the magnetic circuit of the locking device saturates part of the magnetic yoke, namely the web washer, when the excitation current is too high, that is to say when the holding force is too high, so that the holding force no longer occurs despite an increasing current increases. If, in addition, as described above according to the invention, the magnetic circuit has a low air gap compared to known arrangements in which the adhesive force is adjusted by means of the air gap size, a considerably smaller excitation current is necessary for the required adhesive force. In this way, the necessary electrical excitation power can be reduced.
- Zweckmäßigerweise ist die Anzahl der Stege und die Größe des Stegquerschnitts so dimensioniert, daß die Größe des magnetischen Flusses der erwünschten Haftkraft entspricht. Dabei wird das Eisen der Stegscheibe im gesättigten Zustand betrieben. Für den Magnetfluß sind also lediglich die magnetischen Eigenschaften des Eisens der Stegscheibe und die Größe der Stäbe ausschlaggebend.- The number of webs and the size of the web cross-section are expediently dimensioned such that the size of the magnetic flux corresponds to the desired adhesive force. The iron of the web washer is operated in a saturated state. Only the magnetic properties of the iron of the web disc and the size of the bars are decisive for the magnetic flux.
Anhand der Zeichnung wird die Erfindung im folgenden näher erläutert.The invention is explained in more detail below with the aid of the drawing.
Dabei zeigen
- Fig. 1 den prinzipiellen Aufbau eines Elektromagneten einer bekannten Feststellvorrichtung im Schnitt und in Draufsicht,
- Fig. 2 einen Elektromagneten einer Feststellvorrichtung mit der erfindungsgemäßen Abgleichscheibe.
- 1 shows the basic structure of an electromagnet of a known locking device in section and in plan view,
- Fig. 2 shows an electromagnet of a locking device with the adjustment disk according to the invention.
In Fig.1 ist im Schnitt der Elektromagnet gezeigt. Links davon ist auf die Abgleichscheibe dargestellt. Innerhalb des Führungsrohres FR, das nicht magnetisch ist, beispielsweise aus Aluminium, ist der bewegliche Eisenkern EK, der nach rechts die Kraft K aufbringt, um die in nicht dargestellter Weise notwendige Haftkraft zu bewirken. Beispielsweise, was hier jedoch nicht gezeigt ist, soll mit der Betätigungskraft K ein Ventil der Hydraulik der Türschließvorrichtung geschlossen gehalten werden. Die Magnetspule MS wird vom nicht gezeigten Erregerstrom durchflossen. Der Magnetkreis ist über das konzentrische Joch J (aus Eisen) und der Abgleichscheibe AS geschlossen. Die Abgleichscheibe AS weist einen Luftspalt LS auf, der in herkömmlicher Weise ausschlaggebend ist bei der Justierung, um die notwendige Haftkraft zu erreichen.In Fig.1 the electromagnet is shown in section. The adjustment disc is shown on the left of this. Inside the guide tube FR, which is not magnetic, for example made of aluminum um, is the movable iron core EK, which applies the force K to the right in order to bring about the necessary adhesive force, which is not shown. For example, what is not shown here, a valve of the hydraulic system of the door closing device is to be kept closed with the actuating force K. The excitation current (not shown) flows through the magnet coil MS. The magnetic circuit is closed via the concentric yoke J (made of iron) and the adjusting disc AS. The adjustment disc AS has an air gap LS, which is decisive in the conventional manner in the adjustment in order to achieve the necessary adhesive force.
In Fig. 2 ist der Elektromagnet mit der erfindungsgemäßen Abgleichscheibe, die als Stegscheibe SS ausgebildet ist, dargestellt. Die Stegscheibe SS ist als speichenradförmige Scheibe ausgebildet, die einen Kreisring KR mit mehreren, radial nach außen verlaufenden Stegen ST aufweist. Dabei ist der Querschnitt aller Stege ST gemeinsam so groß gewählt, daß das für die Stege ST verwendete Eisen bei eben dem magnetischen Fluß gesättigt wird, der bei der erwünschten Haftkraft (entspricht der Betätigungskraft K) auftritt. Dieser magnetische Fluß kann also auch bei größerem Erregerstrom nicht mehr wesentlich anwachsen, so daß auch die Haftkraft nicht unzulässig groß werden kann. Zwischen der Stegscheibe SS und dem Eisenkern EK bzw. dem Führungsrohr FR ist ein relativ kleiner Luftspalt LS. Aufgrund des gegenüber den früheren Abgleichscheiben kleineren Luftspalts nimmt die zur Erzeugung des gewünschten magnetischen Flusses notwendige elektrische Erregerleistung ab. Zur weiteren Verringerung des magnetischen Widerstandes kann die Stegscheibe im Beeich des Luftspaltes, z.B. durch einen Verstärkungsring VR, verdickt werden. Dadurch ist es möglich und wirtschaftlich vertretbar, den Magnetkreis so auszulegen, daß die Stegsättigung bereits bei der unteren Betriebsspannungsgrenze einsetzt und auf diese Weise im ganzen Betriebsspannungsbereich eine weitgehend konstante Haftkraft erzielt wird. Ein Abgleich zur Anpassung an verschiedene Anforderungen ist im allgemeinen nicht notwendig. Ist es dennoch erforderlich, eine Anpassung vorzunehmen, so kann diese beispielsweise durch Herausschneiden eines einzelnen Steges oder mehrere Stege erfolgen.2 shows the electromagnet with the adjustment disk according to the invention, which is designed as a web disk SS. The web disc SS is designed as a spoke wheel-shaped disc which has a circular ring KR with a plurality of webs ST which extend radially outwards. The cross section of all the webs ST is chosen so large that the iron used for the webs ST is saturated with the magnetic flux that occurs at the desired adhesive force (corresponds to the actuating force K). This magnetic flux can therefore no longer increase significantly even with a larger excitation current, so that the adhesive force cannot become excessively large. There is a relatively small air gap LS between the web disc SS and the iron core EK or the guide tube FR. Due to the smaller air gap compared to the previous balancing disks, the electrical excitation power required to generate the desired magnetic flux decreases. To further reduce the magnetic resistance, the web disc in the area of the air gap, e.g. can be thickened by a reinforcement ring VR. This makes it possible and economically justifiable to design the magnetic circuit so that the web saturation begins at the lower operating voltage limit and in this way a largely constant adhesive force is achieved in the entire operating voltage range. A comparison to adapt to different requirements is generally not necessary. If it is nevertheless necessary to make an adjustment, this can be done, for example, by cutting out a single web or a plurality of webs.
Bei der Feststellvorrichtung mit der erfindungsgemäßen Stegscheibe, wie in Fig.2 gezeigt, ist der die Haftkraft bestimmende magnetische Fluß durch den Erregerstrom und den magnetischen Widerstand des Magnetkreises bestimmt. Während der magnetische Widerstand bei den bekannten Feststellvorrichtungen (siehe Fig.1) von der Summe kleiner Luftspalte abhängt, die nicht mit genügend kleinen Toleranzen gefertigt werden können, ist bei der erfindungsgemäßen Feststellvorrichtung der magnetische Fluß durch die in Sättigung gehenden Stege der Stegscheibe stabilisiert. Für diesen Effekt sind die eng tolerierbaren magnetischen Eigenschaften der Stege bzw. der Stegscheibe und deren Abmessung maßgebend, während die Erregerleistung und die Luftspaltabmessungen keine wesentliche Rolle spielen.In the locking device with the web washer according to the invention, as shown in FIG. 2, the magnetic flux determining the adhesive force is determined by the excitation current and the magnetic resistance of the magnetic circuit. While the magnetic resistance in the known locking devices (see FIG. 1) depends on the sum of small air gaps that cannot be manufactured with sufficiently small tolerances, the magnetic flux in the locking device according to the invention is stabilized by the webs of the web washer saturating. The narrowly tolerable magnetic properties of the webs or the web disc and their dimensions are decisive for this effect, while the excitation power and the air gap dimensions play no significant role.
Claims (5)
dadurch gekennzeichnet, daß die Abgleichscheibe (AS) als speichenradförmige Stegscheibe - (SS) ausgebildet ist, die einen Kreisring (KR) mit einem oder mehreren, radial nach außen verlaufenden Stegen (ST) aufweist.1. Locking device for fire protection doors with an electromagnet, which has a magnetic coil - (MS), an iron core (EK) movable inside a guide tube (FR), a yoke (J) and at least one adjusting disc (AS) closing the magnetic circuit, which is on the Guide tube (FR) is arranged,
characterized in that the adjusting disc (AS) is designed as a spoke wheel-shaped web disc (SS) which has a circular ring (KR) with one or more webs (ST) extending radially outwards.
dadurch gekennzeichnet , daß der Innendurchmesser des Kreisrings (KR) annähernd gleich dem Außendurchmesser des Führungsrohres ist, wobei zwischen der Stegscheibe (SS) und dem Eisenkern (EK) ein sehr kleiner Luftspalt (LS) besteht.2. Locking device according to claim 1,
characterized in that the inner diameter of the circular ring (KR) is approximately equal to the outer diameter of the guide tube, a very small air gap (LS) being present between the web disc (SS) and the iron core (EK).
dadurch gekennzeichnet, daß die Anzahl der Stege (ST) und die Größe des Stegquerschnitts der Größe des magnetischen Flusses entspricht, der für eine vorgebbare Haftkraft (K) erforderlich ist, wobei das Eisen der Stegscheibe (SS) gesättigt ist.3. Locking device according to claim 1 or 2,
characterized in that the number of webs (ST) and the size of the web cross-section corresponds to the size of the magnetic flux required for a predeterminable adhesive force (K), the iron of the web disc (SS) being saturated.
dadurch gekennzeichnet, daß zur Verringerung des magnetischen Widerstandes im Bereich des Luftspalts (LS) die Stegscheibe (SS) verdickt ist.4. Locking device according to claim 2,
characterized in that the web disc (SS) is thickened in order to reduce the magnetic resistance in the region of the air gap (LS).
dadurch gekennzeichnet, daß die Verdickung der Stegscheibe (SS) mittels eines oder mehrerer Verstärkungsringe (VR) erzielt wird.5. Locking device according to claim 4,
characterized in that the thickening of the web disc (SS) is achieved by means of one or more reinforcement rings (VR).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT86106969T ATE46787T1 (en) | 1985-05-28 | 1986-05-22 | LOCKING DEVICE FOR FIRE PROTECTION DOORS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3519048 | 1985-05-28 | ||
| DE3519048 | 1985-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0204222A1 true EP0204222A1 (en) | 1986-12-10 |
| EP0204222B1 EP0204222B1 (en) | 1989-09-27 |
Family
ID=6271781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86106969A Expired EP0204222B1 (en) | 1985-05-28 | 1986-05-22 | Retaining device for fire-preventing doors |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0204222B1 (en) |
| AT (1) | ATE46787T1 (en) |
| DE (1) | DE3665954D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827162A1 (en) * | 1996-08-30 | 1998-03-04 | Schneider Electric Sa | Electromagnet with immersed core used for instance in a remote control interrupter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005013215B4 (en) * | 2005-03-20 | 2010-09-23 | Martin Reuter | Locking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1236085A (en) * | 1959-06-04 | 1960-07-15 | Method of construction of magnetic circuits | |
| US3517362A (en) * | 1968-09-11 | 1970-06-23 | John A Mead | Differential transformer flux valve |
| GB1235069A (en) * | 1969-05-29 | 1971-06-09 | Standard Telephones Cables Ltd | Solenoid |
| DE2229332A1 (en) * | 1971-06-15 | 1973-01-11 | Cartwright John Bryan Francis | CONVERTER |
| FR2483501A1 (en) * | 1980-05-28 | 1981-12-04 | Arouete J | Electromagnetic catch for e.g. fire door - has electromagnet which is affixed by single screw and is connectable by terminals lodged inside body |
| FR2545260A1 (en) * | 1983-04-28 | 1984-11-02 | Paris & Du Rhone | Magnetic circuit for electromagnet |
-
1986
- 1986-05-22 EP EP86106969A patent/EP0204222B1/en not_active Expired
- 1986-05-22 AT AT86106969T patent/ATE46787T1/en not_active IP Right Cessation
- 1986-05-22 DE DE8686106969T patent/DE3665954D1/en not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1236085A (en) * | 1959-06-04 | 1960-07-15 | Method of construction of magnetic circuits | |
| US3517362A (en) * | 1968-09-11 | 1970-06-23 | John A Mead | Differential transformer flux valve |
| GB1235069A (en) * | 1969-05-29 | 1971-06-09 | Standard Telephones Cables Ltd | Solenoid |
| DE2229332A1 (en) * | 1971-06-15 | 1973-01-11 | Cartwright John Bryan Francis | CONVERTER |
| FR2483501A1 (en) * | 1980-05-28 | 1981-12-04 | Arouete J | Electromagnetic catch for e.g. fire door - has electromagnet which is affixed by single screw and is connectable by terminals lodged inside body |
| FR2545260A1 (en) * | 1983-04-28 | 1984-11-02 | Paris & Du Rhone | Magnetic circuit for electromagnet |
Non-Patent Citations (1)
| Title |
|---|
| PATENTS ABSTRACTS OF JAPAN, Band 5, Nr. 74 (E-57)[746], 16. Mai 1981; & JP - A - 56 23 719 (TSUKASA SOTSUKEN) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827162A1 (en) * | 1996-08-30 | 1998-03-04 | Schneider Electric Sa | Electromagnet with immersed core used for instance in a remote control interrupter |
| FR2752995A1 (en) * | 1996-08-30 | 1998-03-06 | Schneider Electric Sa | PLUNGE COLOR ELECTRO-MAGNET USING FOR EXAMPLE IN A TELUATOR |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3665954D1 (en) | 1989-11-02 |
| ATE46787T1 (en) | 1989-10-15 |
| EP0204222B1 (en) | 1989-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3814765C2 (en) | ||
| CH618243A5 (en) | Magnetically actuated friction clutch or brake | |
| DE2257213C3 (en) | 3- or 4-way solenoid valve | |
| DE2739085A1 (en) | MAGNETIC VALVE | |
| EP3464968B1 (en) | Electromagnetic valve device and system | |
| EP0235318B1 (en) | Electromagnetic actuator | |
| DE19751609A1 (en) | Narrow structure electromagnetic actuator e.g. for actuating gas-exchange valves in four-valve engine | |
| EP0204222B1 (en) | Retaining device for fire-preventing doors | |
| EP0748416B1 (en) | Electromagnetically actuated valve in an internal combustion engine | |
| DE1650574A1 (en) | Electromagnetically operated miniature valve with plunger magnet system | |
| EP0418502B1 (en) | Electromagnetic valve | |
| EP1620667B1 (en) | Solenoid assembly | |
| EP2378167A2 (en) | Sealing unit | |
| DE2855902A1 (en) | ELECTROMAGNETICALLY OPERABLE 3/2-WAY VALVE, ESPECIALLY FOR REMOTE CONTROLLING OF UNIT SIDED DEVICES | |
| WO1999025595A1 (en) | Solenoid valve | |
| EP1907252B1 (en) | Solenoid valve arrangement for an automotive braking system | |
| EP0080181A1 (en) | Method of mounting a double-seated valve and regulator-valve-unit with such double-seated valves | |
| DE2305362A1 (en) | ELECTROMAGNETIC ACTUATION DEVICE FOR A PEN OF A DOT PRINT DEVICE | |
| DE2143001B2 (en) | Bistable axial guidance for plungers and the like in jump mechanisms | |
| EP2135264B1 (en) | Magnetic circuit for solenoid valve | |
| DE1196917B (en) | Safety device with at least two control valves | |
| DE6610173U (en) | ELECTROMAGNETIC ADHESION MAGNET, IN PARTICULAR FOR AN ADHESION RELAY. | |
| DE19710028A1 (en) | Monitoring arrangement for magnetic valve | |
| DE3240103A1 (en) | Electromagnetically operable 3/2-way valve for controlling a consumer in a vacuum-pressure line system, especially for milking systems | |
| DE2410767C3 (en) | Electromagnetic shut-off and throttle device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE FR GB IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19870604 |
|
| 17Q | First examination report despatched |
Effective date: 19881123 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE DE FR GB IT NL SE |
|
| REF | Corresponds to: |
Ref document number: 46787 Country of ref document: AT Date of ref document: 19891015 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 3665954 Country of ref document: DE Date of ref document: 19891102 |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19910423 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19910424 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19910522 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19910527 Year of fee payment: 6 Ref country code: BE Payment date: 19910527 Year of fee payment: 6 |
|
| ITTA | It: last paid annual fee | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19910531 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19910726 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19920522 Ref country code: AT Effective date: 19920522 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19920523 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19920531 |
|
| BERE | Be: lapsed |
Owner name: SIEMENS A.G. Effective date: 19920531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19921201 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19920522 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19930129 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19930202 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| EUG | Se: european patent has lapsed |
Ref document number: 86106969.8 Effective date: 19921204 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050522 |