EP0562076B1 - Capacitive proximity sensor for detecting persons or objects - Google Patents

Capacitive proximity sensor for detecting persons or objects Download PDF

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Publication number
EP0562076B1
EP0562076B1 EP92920399A EP92920399A EP0562076B1 EP 0562076 B1 EP0562076 B1 EP 0562076B1 EP 92920399 A EP92920399 A EP 92920399A EP 92920399 A EP92920399 A EP 92920399A EP 0562076 B1 EP0562076 B1 EP 0562076B1
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EP
European Patent Office
Prior art keywords
sensors
rotating
sensor
leaves
objects
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Expired - Lifetime
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EP92920399A
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German (de)
French (fr)
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EP0562076A1 (en
Inventor
Willi Ressel
Jürgen Stark
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Dorma Deutschland GmbH
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Dorma Deutschland GmbH
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/608—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for revolving wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a revolving door driven by an electric motor with a safety circuit according to the preamble of claim 1.
  • a safety circuit for electromotive-driven and electrically brakeable or lockable flywheel has become known from DE-PS 39 34 662, which consists of strip-shaped touch or pressure-sensitive electrical switching elements. Special control units or monitoring units are intended to rule out any danger to the user.
  • DE-OS 30 20 483 in connection with a brochure from the Besam company shows a sensor strip which is fastened to a door on a cross bar.
  • This sensor strip works according to the photoelectric principle and detects objects in its radiation area.
  • the disadvantage of photoelectric sensors, however, is that they also e.g. Identify sheets of paper as an object and thus control the door according to the hazard functions.
  • the object of the invention is to secure a rotating wing of a revolving door in such a way that all moments of danger for the users of the traffic are excluded. At the same time, it should also be ensured that e.g. paper on the floor must not impair the functions of the revolving door.
  • the sensitivity of the vertical and horizontal sensors can be operated in two ways. In static operation, ie the sensors have the same sensitivity for the entire rotation of the rotary sash, each object is reliably recognized with the same sensitivity both on the floor and in the area of the crushing and shearing points. If, however, an even higher level of security is to be ensured than in normal operation, the sensitivity in the area of the squeezing and shearing points, for example of the vertical sensor, can be switched to a higher sensitivity shortly before the rotating wing arrives on the drum wall. This dynamic operation would result in an even greater degree of safety for the user, particularly in the area of the large danger points. After this Passing the front edge of the drum wall would then reduce the sensitivity back to the normal level. If a person or an object is now detected by the vertical or the horizontal sensor bar located on the floor, which is otherwise located on each rotating wing, the rotating door is brought to a standstill. This ensures that there is no danger to the user from the revolving door.
  • the wing arrangement of the revolving door (1) is located between the floor support (3) and the ceiling support (2).
  • the number of rotary blades is arbitrary. There can be two, three or four-leaf revolving doors.
  • the rotary blades (4), (5), (14) and (15) are located on the central axis (16).
  • the rotary blades are framed by two curved drum walls (6) and (7).
  • a sensor (12) is located on each of the wings (4), (5), (14) and (15) on the lower transverse spar (10). This sensor (12) is preferably designed as an elongated sensor strip.
  • the sensor strips (12) located on the floor secure the floor area and thus the air gap between the cross member (10) and the floor (17).
  • This sensor (11) also radiates a field in the form of a lobe, and thus detects people and objects that cause a field disturbance. This is particularly the case when the rotary leaf (4), (5), (14) or (15) approaches the area of the main closing edges (8) and (20). These main closing edges (8) and (20) in connection with the tapering edges of the rotary leaves (4), (5), (14) and (15) represent crushing and shearing points. For this reason, they must be specially secured in order to to avoid crushing people or objects.
  • the proximity sensors which are preferably designed as capacitive sensors, are switched on and can thus detect any dangerous disturbance in the sequence of the revolving door and bring it to a standstill.
  • This operation can be referred to as static operation since the sensitivity of the sensors (11) and (12) is not changed.
  • a switch can be made to dynamic operation. This can preferably be triggered by a corresponding sensor which is located on the axis (16) in the door. Due to the dynamic operation, a person or an object is detected even faster due to the higher sensitivity of the sensor bar (11) in the area (13).
  • circuitry it can also be implemented in such a way that the vertical sensor strip (11) moves in dynamic operation and the horizontal sensor strip (12) in static operation.
  • the signals supplied by the amplifiers of the capacitive proximity sensors can be fed to separate evaluation circuits which are still assigned to certain functions. However, it is also possible to supply these signals to an amplifier with a corresponding comparator stage, which shuts down the entire drive when a threshold value is exceeded.

Abstract

An arrangement of capacitive proximity sensors (11, 12) for detecting persons or objects is disclosed for a revolving door (1) driven by an electric motor. To provide a safety function for the floor area, a transverse sensor (12) is arranged in the lower area (10) of each door leaf (4, 5, 14, 15). In order to prevent crushing and pinching by the revolving door wall (6, 7), sensors (11) are arranged along each door leaf (4, 5, 14, 15).

Description

Die Erfindung betrifft eine elektromotorisch angetriebenen Drehtür mit einer Sicherheitsschaltung nach dem Oberbegriff des Anspruchs 1.The invention relates to a revolving door driven by an electric motor with a safety circuit according to the preamble of claim 1.

Durch die Rotationsbewegung der an einem Zentrum befestigten Drehflügel einer Drehtür besteht die Gefahr, daß in dem Bereich der auf einander zulaufenden Kanten, d.h. wenn die Außenkante eines Flügels sich einer Trommelwand nähert, eine Quetschung bzw. Scherung von Personen oder Gegenständen eintreten kann. Dieses ist besonders dann gegeben, wenn die Drehtür motorisch angetrieben wird. Es ist deshalb notwendig, Sicherheitsvorkehrungen zu treffen, die eine Beschädigung bzw. Verletzung von Personen oder Gegenständen ausschliessen. Zur Vermeidung einer Kollision muß deshalb die Drehbewegung der Drehtür unterbrochen werden. Eine Brems- bzw. Arrettiervorrichtung bringt die Drehflügel zum Stillstand.Due to the rotational movement of the revolving door of a revolving door attached to a center, there is a risk that in the area of the edges converging towards one another, i.e. If the outer edge of a grand piano approaches a drum wall, people or objects may be crushed or sheared. This is particularly the case when the revolving door is driven by a motor. It is therefore necessary to take safety precautions that prevent damage or injury to people or objects. To avoid a collision, the rotary movement of the revolving door must therefore be interrupted. A braking or locking device brings the rotating blades to a standstill.

Eine Sicherheitsschaltung für elektromotorisch angetriebene und elektrisch brems- oder arrettierbare Schwungmasse ist aus der DE-PS 39 34 662 bekannt geworden, welche aus leistenförmigen berührungs- oder druckempfindlichen elektrischen Schaltelementen besteht. Durch besondere Steuerungseinheiten bzw. Überwachungseinheiten soll eine Gefahr für den Benutzer ausgeschlossen werden.A safety circuit for electromotive-driven and electrically brakeable or lockable flywheel has become known from DE-PS 39 34 662, which consists of strip-shaped touch or pressure-sensitive electrical switching elements. Special control units or monitoring units are intended to rule out any danger to the user.

Des weiteren ist in der DE-PS 27 19 955 ein Feldsensor zum Erkennen von Personen oder Gegenständen offenbart worden. Dieser Feldsensor ist an den Vorderkanten einer Aufzugstür angebracht worden, und stellt somit sicher, daß die eintretenden Personen bzw. zwischen den Aufzugstüren befindlichen Gegenstände nicht beschädigt werden. Kommt ein Gegenstand oder eine Person innerhalb des Abstrahlfeldes des Sensors, so wird ein Reversiervorgang der Aufzugstüren in Gang gesetzt. Diese Sensoren arbeiten immer mit der gleichen Empfindlichkeit.Furthermore, a field sensor for detecting people or objects has been disclosed in DE-PS 27 19 955. This field sensor has been attached to the front edges of an elevator door and thus ensures that the people entering or objects located between the elevator doors are not damaged. If an object or a person comes within the radiation field of the sensor, the elevator doors are reversed. These sensors always work with the same sensitivity.

Weiter ist der DE-OS 30 20 483 in Verbindung mit einem Prospekt der Firma Besam eine Sensorleiste zu entnehmen, die auf einem Querholm an einer Tür befestigt ist. Diese Sensorleiste arbeitet nach dem photoelektrischen Prinzip und erkennt in ihrem Abstrahlbereich befindliche Gegenstände. Der Nachteil der photoelektrischen Sensoren ist jedoch, daß sie auch z.B. Papierblätter als Gegenstand identifizieren und damit die Tür entsprechend der Gefahrfunktionen steuern würden.Furthermore, DE-OS 30 20 483 in connection with a brochure from the Besam company shows a sensor strip which is fastened to a door on a cross bar. This sensor strip works according to the photoelectric principle and detects objects in its radiation area. The disadvantage of photoelectric sensors, however, is that they also e.g. Identify sheets of paper as an object and thus control the door according to the hazard functions.

Im vorliegenden Fall jedoch sollen Gegenstände wie z.B. Papier auf dem Boden nicht als ein Objekt erkannt werden, welches die Funktion der Drehtür beeinträchtigen soll. Neben den bereits vorerwähnten Gefahren an den Quetsch- und Scherstellen des vertikalen Holmes in Verbindung mit der Trommelwand, besteht eine weitere Gefahrenstelle im Bereich des Bodens. Hier befindet sich zwischen dem querlaufenden Holm des Flügels und dem Fußboden ein Spalt, in den z.B. Körperteile eingequetscht werden können. In diesem Falle ist insbesondere an Kinderhände und -füße zu denken. Aus diesem Grunde ist es wichtig, auch diesen Bereich in Bodennähe abzusichern.In the present case, however, objects such as paper on the floor should not be recognized as an object which is to impair the function of the revolving door. In addition to the aforementioned dangers at the pinching and shearing points of the vertical bar in connection with the drum wall, there is another danger point in the area of the floor. There is a gap between the transverse spar of the wing and the floor, into which body parts can be squeezed, for example. In this case, children's hands and feet are particularly important. For this reason, it is important to secure this area near the ground.

Die Aufgabe der Erfindung ist es, die Sicherung eines Drehflügels einer Drehtür so zu gestalten, daß alle Gefahrenmomente für die benutzenden Verkehrskreise ausgeschlossen werden. Gleichzeitig soll aber auch sichergestellt werden, daß z.B. durch auf dem Boden befindliches Papier keine Beeinträchtigung der Funktionen der Drehtür eintreten darf.The object of the invention is to secure a rotating wing of a revolving door in such a way that all moments of danger for the users of the traffic are excluded. At the same time, it should also be ensured that e.g. paper on the floor must not impair the functions of the revolving door.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst. Hier wird unterschieden zwischen dem bodennahen Querholm und dem vertikal außen verlaufenden Längsholm des Flügels. Beide Sensoren, die als Leisten ausgeführt sind, können mit ihren entsprechenden Ausgangssignalen elektrisch zusammengeschaltet werden und somit ein Abschaltsignal erzeugen, oder aber auch getrennt verarbeitet werden.The object is achieved by the features of the characterizing part of claim 1. A distinction is made here between the transverse spar near the ground and the longitudinal spar of the wing running vertically on the outside. Both sensors, which are designed as strips, can be electrically interconnected with their corresponding output signals and thus generate a switch-off signal, or can also be processed separately.

Bei der Anwendung kann die Empfindlichkeit des vertikalen und horizontalen Sensors auf zweierlei Art und Weise betrieben werden. Im statischen Betrieb, d.h. die Sensoren haben für den gesamten Umlauf des Drehflügels die gleiche Empfindlichkeit, wird jedes Objekt sowohl am Fußboden als auch im Bereich der Quetsch- und Scherstellen mit der gleichen Empfindlichkeit sicher erkannt. Soll jedoch eine noch höhere Sicherheit als beim Normalbetrieb gewährleistet werden, so kann im Bereich der Quetsch- und Scherstellen die Empfindlichkeit z.B. des vertikalen Sensors kurz vor dem Eintreffen des Drehflügels an der Trommelwand auf eine höhere Empfindlichkeit umgeschaltet werden. Dieser dynamische Betrieb hätte zur Folge, daß gerade im Bereich der großen Gefahrenstellen, ein noch größeres Maß an Sicherheit für den Benutzer vorhanden wäre. Nach dem Passieren der Vorderkante der Trommelwand würde dann die Empfindlichkeit wieder auf den normalen Level herabgesetzt. Wird nun von der vertikalen oder der am Boden befindlichen horizontalen Sensorleiste, die sich im übrigem auf jedem Drehflügel befindet, eine Person oder ein Objekt erfaßt, so wird die Drehür zum Stillstand gebracht. Dadurch ist es sichergestellt, daß keine Gefährdung für den Benutzer von der Drehtür ausgeht.When used, the sensitivity of the vertical and horizontal sensors can be operated in two ways. In static operation, ie the sensors have the same sensitivity for the entire rotation of the rotary sash, each object is reliably recognized with the same sensitivity both on the floor and in the area of the crushing and shearing points. If, however, an even higher level of security is to be ensured than in normal operation, the sensitivity in the area of the squeezing and shearing points, for example of the vertical sensor, can be switched to a higher sensitivity shortly before the rotating wing arrives on the drum wall. This dynamic operation would result in an even greater degree of safety for the user, particularly in the area of the large danger points. After this Passing the front edge of the drum wall would then reduce the sensitivity back to the normal level. If a person or an object is now detected by the vertical or the horizontal sensor bar located on the floor, which is otherwise located on each rotating wing, the rotating door is brought to a standstill. This ensures that there is no danger to the user from the revolving door.

Der erfindungsgemäße Gegenstand wird anhand eines schematisch dargestellten möglichen Ausführungsbeispieles in den Figuren näher erläutert. Es zeigen:

Figur 1:
Drehtür
Figur 2:
Drehtür schematisch in der Draufsicht
The subject matter of the invention is explained in more detail in the figures with reference to a schematically illustrated possible embodiment. Show it:
Figure 1:
Revolving door
Figure 2:
Revolving door schematically in top view

Zwischen dem Bodenlager (3) und dem Deckenlager (2) befindet sich die Flügelanordnung der Drehtür (1). Die Anzahl der Drehflügel ist beliebig. Es können sowohl zwei-, drei- oder auch vierflügelige Drehtüren sein. An der Mittelachse (16) befinden sich die Drehflügel (4), (5), (14) und (15). Eingerahmt werden die Drehflügel von zwei gebogenen Trommelwänden (6) und (7). Auf jedem der Flügel (4), (5), (14) und (15) befindet sich an dem unteren querliegenden Holm (10) ein Sensor (12). Dieser Sensor (12) wird vorzugsweise als langgestreckte Sensorleiste ausgeführt. Durch diese am Boden befindlichen Sensorleisten (12) wird der Bodenbereich und damit der Luftspalt zwischen dem Querholm (10) und dem Fußboden (17) abgesichert. Aufgrund des abgestrahlten Feldes wird ein sich annähernder menschlicher Körperteil bzw. Gegenstände sicher erkannt und führt somit aufgrund der Störung des Feldes der kapazitiven Sensoren zu einer Auslösung eines Abschaltsignales, welches an die Antriebselektronik der Drehtür gegeben wird. Im Gegensatz zu menschlichen Körperteilen werden Papier oder z.B. Zigarettenschachteln nicht von der Sensorik erfaßt. Dieses ist besonders deshalb wichtig, damit ein kontinuierlicher Betrieb der Drehtür nicht gestört wird. Neben dem am Boden befindlichen Sensor (12) befindet sich eine weitere Sensorleiste (11) an dem vertikalen Holm (9) eines jeden Drehflügels (4), (5), (14) und (15). Diese Sensorleiste (11) ist auch auf der Innenseite, d.h. auf der Flügelvorderseite in Richtung der Drehrichtung der Drehtür angebracht. Auch dieser Sensor (11) strahlt ein Feld in Form einer Keule ab, und erfaßt somit Personen und Gegenstände, die eine Feldstörung herbeiführen. Dieses ist insbesondere dann gegeben, wenn sich der Drehflügel (4), (5), (14) oder (15) dem Bereich der Hauptschließkanten (8) und (20) nähert. Diese Hauptschließkanten (8) und (20) stellen in Verbindung mit den darauf zulaufenden Kanten der Drehflügel (4), (5), (14) und (15) Quetsch- und Scherstellen dar. Aus diesem Grunde müssen sie besonders abgesichert werden, um ein Einquetschen von Personen bzw. Gegenständen zu vermeiden.The wing arrangement of the revolving door (1) is located between the floor support (3) and the ceiling support (2). The number of rotary blades is arbitrary. There can be two, three or four-leaf revolving doors. The rotary blades (4), (5), (14) and (15) are located on the central axis (16). The rotary blades are framed by two curved drum walls (6) and (7). A sensor (12) is located on each of the wings (4), (5), (14) and (15) on the lower transverse spar (10). This sensor (12) is preferably designed as an elongated sensor strip. The sensor strips (12) located on the floor secure the floor area and thus the air gap between the cross member (10) and the floor (17). Due to the radiated field, an approaching human body part or objects are reliably recognized and thus, due to the disturbance of the field of the capacitive sensors, triggers a switch-off signal which is sent to the drive electronics of the revolving door. In contrast to human body parts, paper or e.g. Cigarette boxes not detected by the sensors. This is particularly important so that continuous operation of the revolving door is not disturbed. In addition to the sensor (12) located on the floor, there is a further sensor strip (11) on the vertical bar (9) of each rotating wing (4), (5), (14) and (15). This sensor strip (11) is also attached on the inside, ie on the front of the wing in the direction of the direction of rotation of the revolving door. This sensor (11) also radiates a field in the form of a lobe, and thus detects people and objects that cause a field disturbance. This is particularly the case when the rotary leaf (4), (5), (14) or (15) approaches the area of the main closing edges (8) and (20). These main closing edges (8) and (20) in connection with the tapering edges of the rotary leaves (4), (5), (14) and (15) represent crushing and shearing points. For this reason, they must be specially secured in order to to avoid crushing people or objects.

Während des gesamten Umlaufes sind die Näherungssensoren, welche vorzugsweise als kapazitive Sensoren ausgebildet sind, eingeschaltet und können so jede gefährdende Störung im Ablauf der Drehtür erfassen und diese zum Stillstand bringen. Dieser Betrieb kann als statischer Betrieb bezeichnet werden, da die Empfindlichkeit der Sensoren (11) und (12) nicht verändert wird. Um jedoch bei den neuralgischen Quetsch- und Scherstellen (8) und (20) noch ein höheres Maß an Sicherheit für den Benutzer zu haben, kann auf einen dynamischen Betrieb umgeschaltet werden. Dieses kann vorzugsweise durch einen entsprechenden Geber, der sich an der Achse (16) in der Tür befindet, ausgelöst werden. Durch den dynamischen Betrieb wird aufgrund der höheren Empfindlichkeit der Sensorleiste (11) im Bereich (13) noch schneller eine Person oder ein Gegenstand erkannt.During the entire cycle, the proximity sensors, which are preferably designed as capacitive sensors, are switched on and can thus detect any dangerous disturbance in the sequence of the revolving door and bring it to a standstill. This operation can be referred to as static operation since the sensitivity of the sensors (11) and (12) is not changed. However, in order to have a higher degree of safety for the user at the critical squeezing and shearing points (8) and (20), a switch can be made to dynamic operation. This can preferably be triggered by a corresponding sensor which is located on the axis (16) in the door. Due to the dynamic operation, a person or an object is detected even faster due to the higher sensitivity of the sensor bar (11) in the area (13).

Schaltungstechnisch kann es auch so realisiert werden, daß die vertikale Sensorleiste (11) im dynamischen Betrieb fährt und die horizontale Sensorleiste (12) im statischen Betrieb. Die von den Verstärkern der kapazitiven Näherungssensoren gelieferten Signale können getrennten Auswerteschaltungen zugeführt werden, die bestimmten Funktionen noch zugerordnet werden. Es ist dabei jedoch auch möglich, diese Signale einem Verstärker mit einer entsprechenden Komparatorstufe zuzuführen, die bei Überschreitung eines Schwellwertes den gesamten Antrieb stillegt.In terms of circuitry, it can also be implemented in such a way that the vertical sensor strip (11) moves in dynamic operation and the horizontal sensor strip (12) in static operation. The signals supplied by the amplifiers of the capacitive proximity sensors can be fed to separate evaluation circuits which are still assigned to certain functions. However, it is also possible to supply these signals to an amplifier with a corresponding comparator stage, which shuts down the entire drive when a threshold value is exceeded.

BezugszeichenReference numerals

11
DrehtürRevolving door
22nd
DeckenlagerCeiling storage
33rd
BodenlagerFloor storage
44th
Flügelwing
55
Flügelwing
66
TrommelwandDrum wall
77
TrommelwandDrum wall
88th
HauptschließkanteMain closing edge
99
vertikaler Holmvertical spar
1010th
QuerholmQuerholm
1111
Sensorsensor
1212th
Sensorsensor
1313
dynamischer Bereichdynamic range
1414
Flügelwing
1515
Flügelwing
1616
MittelachseCentral axis
1717th
Fußbodenfloor
1818th
Ausgangoutput
1919th
Eingangentrance
2020th
HauptschließkanteMain closing edge

Claims (1)

  1. A rotating doordriven by an electric motor with a safety circuit, wherein the edges of rotating leaves (4, 5, 14, 15) run towards at least one edge (8, 20) of a drum wall (6, 7), comprising strip-shaped sensors (11) to detect persons or objects outside the vertical edges (9) of the rotatings leaves (4, 5, 14, 15) in the direction of travel, comprising an amplifier and evaluation electronic system to which the sensor signals are fed, and comprising a braking and locking system which on response of the sensor is triggered by the evaluation electronic system to disconnect the drive and brake and lock the rotating leaves, characterised in that strip shaped sensors (12) are disposed on the horizontal edges (10) of the ratating leaves extending in the direction of travel, said sensors (11, 12) being disposed in the zone thereof near the ground, in that each of the sensors (11, 12) disposed on the rotating leaves is a capacitative sensor, and in that the sensitivity of the sensors (11) disposed on the vertical edges (9) of the rotating leaves can be switched to a higher sensitivity when the vertical edge (9) of the associated rotating leaf comes into the zone of the edge (8, 20) of the drum wall (6, 7).
EP92920399A 1991-10-14 1992-09-28 Capacitive proximity sensor for detecting persons or objects Expired - Lifetime EP0562076B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19914134016 DE4134016C1 (en) 1991-10-14 1991-10-14
DE4134016 1991-10-16
PCT/DE1992/000831 WO1993008356A1 (en) 1991-10-14 1992-09-28 Capacitive proximity sensor for detecting persons or objects

Publications (2)

Publication Number Publication Date
EP0562076A1 EP0562076A1 (en) 1993-09-29
EP0562076B1 true EP0562076B1 (en) 1995-06-28

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Country Status (7)

Country Link
EP (1) EP0562076B1 (en)
AT (1) ATE124493T1 (en)
DE (2) DE4134016C1 (en)
DK (1) DK0562076T3 (en)
ES (1) ES2041237T3 (en)
NO (1) NO178587C (en)
WO (1) WO1993008356A1 (en)

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US8018099B2 (en) 2006-07-14 2011-09-13 Aurora Office Equipment Co., Ltd. Touch-sensitive paper shredder control system
US8087599B2 (en) 2009-05-07 2012-01-03 Aurora Office Equipment Co., Ltd. Anti-paper jam protection device for shredders
US8146845B2 (en) 2008-08-06 2012-04-03 Aurora Office Equipment Co., Ltd. Shanghai Automatic shredder without choosing the number of paper to be shredded
US8162244B2 (en) 2007-08-02 2012-04-24 Acco Uk Limited Shredding machine
US8201766B2 (en) 2008-08-19 2012-06-19 Aurora Office Equipment Co., Ltd. Pins or staples removable structure of automatic shredders
US8493081B2 (en) 2009-12-08 2013-07-23 Magna Closures Inc. Wide activation angle pinch sensor section and sensor hook-on attachment principle
US8708260B2 (en) 2011-08-08 2014-04-29 Aurora Office Equipment Co., Ltd. Depowered standby paper shredder and method
US8870106B2 (en) 2004-09-10 2014-10-28 Fellowes, Inc. Shredder with thickness detector
US9044759B2 (en) 2007-10-04 2015-06-02 Fellowes, Inc. Shredder thickness with anti-jitter feature
US9234979B2 (en) 2009-12-08 2016-01-12 Magna Closures Inc. Wide activation angle pinch sensor section

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US7946514B2 (en) 2004-09-10 2011-05-24 Fellowes, Inc. Shredder with thickness detector
US7963468B2 (en) 2004-09-10 2011-06-21 Fellowes, Inc. Shredder with thickness detector
US8870106B2 (en) 2004-09-10 2014-10-28 Fellowes, Inc. Shredder with thickness detector
US8783592B2 (en) 2004-09-10 2014-07-22 Fellowes, Inc. Shredder with thickness detector
USRE44161E1 (en) 2005-07-11 2013-04-23 Fellowes, Inc. Shredder with thickness detector
US8018099B2 (en) 2006-07-14 2011-09-13 Aurora Office Equipment Co., Ltd. Touch-sensitive paper shredder control system
US8008812B2 (en) 2006-07-14 2011-08-30 Aurora Office Equipment Co., Ltd. Paper shredder control system responsive to touch-sensitive element
US8963379B2 (en) 2006-07-14 2015-02-24 Aurora Office Equipment Co., Ltd. Shanghai Paper shredder control system responsive to touch-sensitive element
US8162244B2 (en) 2007-08-02 2012-04-24 Acco Uk Limited Shredding machine
US9044759B2 (en) 2007-10-04 2015-06-02 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8146845B2 (en) 2008-08-06 2012-04-03 Aurora Office Equipment Co., Ltd. Shanghai Automatic shredder without choosing the number of paper to be shredded
US8201766B2 (en) 2008-08-19 2012-06-19 Aurora Office Equipment Co., Ltd. Pins or staples removable structure of automatic shredders
US8087599B2 (en) 2009-05-07 2012-01-03 Aurora Office Equipment Co., Ltd. Anti-paper jam protection device for shredders
US8493081B2 (en) 2009-12-08 2013-07-23 Magna Closures Inc. Wide activation angle pinch sensor section and sensor hook-on attachment principle
US9234979B2 (en) 2009-12-08 2016-01-12 Magna Closures Inc. Wide activation angle pinch sensor section
US9417099B2 (en) 2009-12-08 2016-08-16 Magna Closures Inc. Wide activation angle pinch sensor section
US8708260B2 (en) 2011-08-08 2014-04-29 Aurora Office Equipment Co., Ltd. Depowered standby paper shredder and method

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ATE124493T1 (en) 1995-07-15
ES2041237T1 (en) 1993-11-16
NO178587C (en) 1996-04-24
DE4134016C1 (en) 1993-04-15
NO178587B (en) 1996-01-15
EP0562076A1 (en) 1993-09-29
ES2041237T3 (en) 1995-09-01
DK0562076T3 (en) 1995-08-28
NO931719L (en) 1993-05-11
WO1993008356A1 (en) 1993-04-29
NO931719D0 (en) 1993-05-11
DE59202733D1 (en) 1995-08-03

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