EP0993003A2 - Safety contact rail or safety contact element - Google Patents
Safety contact rail or safety contact element Download PDFInfo
- Publication number
- EP0993003A2 EP0993003A2 EP99117389A EP99117389A EP0993003A2 EP 0993003 A2 EP0993003 A2 EP 0993003A2 EP 99117389 A EP99117389 A EP 99117389A EP 99117389 A EP99117389 A EP 99117389A EP 0993003 A2 EP0993003 A2 EP 0993003A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- safety contact
- contact element
- projections
- contact rail
- safety
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/10—Contact cables, i.e. having conductors which may be brought into contact by distortion of the cable
- H01B7/104—Contact cables, i.e. having conductors which may be brought into contact by distortion of the cable responsive to pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2203/00—Form of contacts
- H01H2203/036—Form of contacts to solve particular problems
- H01H2203/054—Form of contacts to solve particular problems for redundancy, e.g. several contact pairs in parallel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
- H01H3/141—Cushion or mat switches
- H01H3/142—Cushion or mat switches of the elongated strip type
Definitions
- the invention relates to a safety contact rail for power-operated systems and the like or a safety contact element as a switching hose and the like with an elastic Hollow profile, within which several strip-like, electrically conductive Protrusions are provided that are mutually non-conductive Cross sections are insulated, the conductive protrusions being mutual Touch to generate a switching pulse.
- the object of the present invention is the generic safety contact rail or a safety contact element improve that there is always redundant contacting, and regardless of the direction in which the trigger force on the Safety contact rail or the safety contact element acts.
- the object of the invention is achieved in that at least four strip-like, electrically conductive projections are provided and that these projections are uniform and even within of the hollow profile are distributed.
- the cross-sectional areas the projections are preferably chosen and arranged so that they are point symmetrical to the central axis of the hollow profile run. It does not matter from which direction the force is applied on the safety contact rail or the safety contact element is initiated because there are always at least two projections touch each other and generate switching impulses against each other.
- the cross-sectional areas of the projections are shaped so that they are essentially two right-angled triangles with different ones long legs can be defined. They exist of course not from two triangles, but they can be in corresponding ones Triangles divided and described thereby.
- the Large triangles border the inner circumference with their hypotenuses of the hollow profile or form a partial circumference of the hollow profile itself, the hypotenuses are not designed as a straight line, but rather corresponding to the inner circumference of the hollow profile or the outer circumference of the hollow profile are curved.
- the big triangles small triangles join in such a way that they align with the long ones Thighs of the large triangles ajar with their long thighs so that the short legs of the large and small triangles form a straight line.
- strip-like noses attached, essentially in extension of the hypotenuses of the small triangles and the surfaces of the small legs tower over the small triangles.
- This configuration of the Cross-sectional areas of the projections arise in the interior of the hollow profiles a cavity along the safety contact rail or the safety contact element, the one in the center by a square Cross-sectional area is defined, on the side faces of each one Edge then cavity strips are formed by the strip-like Noses are narrowed, being angled at these strips staggeredly connect further cavity strips up to the non-conductive Cross section of the hollow profile are sufficient. It became conscious small contact area, especially via the strip-like noses chosen. This leads to a high contact pressure, which leads to self-cleaning of the contact surfaces.
- Carbon or graphite fibers can be incorporated.
- the safety contact rail or the safety contact element can have two different types of non-conductive areas.
- the sheath from not conductive material is made.
- the cross sections the strip-like projections themselves part of the outer circumference of the hollow profile, with non-conductive sections between them are provided.
- the outer circumference of the hollow profile completely non-conductive because of the non-conductive shell is surrounded, while in other cases conductive and non-conductive areas are provided which cover the outer circumference of the Form hollow profile.
- the profile is also insensitive to external influences such as moisture and the like, because no "external contact" can take place.
- the safety contact rail or the Safety contact element with the elastic hollow profile made of extrudable Material, especially rubber or polymers and in one piece including any embedded wires or strands preferably produced as an endless profile in an extruder, so that a homogeneous profile is created.
- Hollow profiles can also be used 6 or 8 or more protrusions can be made and used.
- connection side is then connected to a four-channel evaluator, ie to a connection line with four poles.
- the safety contact element 2 according to FIG. 3 differs from Fig. 2 essentially in that no sleeve 5 is provided and that instead between the electrically conductive projections 6 electrically non-conductive sections 8 are arranged. Both the safety contact rail as well as the safety contact element extruded in one piece including the copper strands.
- FIG. 7 to 9 are the two end cross sections of an arbitrarily long safety contact element, with the top and bottom lines connecting the two Profile cross sections represents the safety contact element. Left is reproduced the connection side and on the right is the connection opposite end of the safety contact element shown.
- the copper strands of the conductive protrusions 6 are one above the other are arranged by parallel bracket 10 on the right Side of the figure interconnected.
- On the left are the Connections that are connected to the copper strands there with a to d designated. They are all used when a four-way connection is chosen with the appropriate technology. Becomes a bipartite Connection selected, then the connections c and d via a Resistor 11 or a diode 12 bridges.
- Fig. 8 differs from Fig. 7 only in that on the the end of the safety contact element facing away from the connection the copper strands 7 of the projections 6 diagonally over corresponding diagonal bridges 13 are interconnected. On the connection side can choose either two or four wire technology become.
- Fig. 9 shows the same sketched safety contact element as that in Figs. 7 and 8, but with changed connections.
- the four copper strands 7 are connected to one another via four diodes 12 or resistors 11 on the end opposite the connection, that is to say the right side of the figure.
- On the left side all connections a to d are connected to a four-channel evaluator. Table "contact / angular force effect" in the circuit diagram according to Fig.
Landscapes
- Push-Button Switches (AREA)
- Elimination Of Static Electricity (AREA)
- Gloves (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Sicherheitskontaktschiene für kraftbetätigte Anlagen und dergleichen oder ein Sicherheitskontaktelement als Schaltschlauch und dergleichen mit einem elastischen Hohlprofil, innerhalb dessen mehrere leistenartige, elektrisch leitende Vorsprünge vorgesehen sind, die gegeneinander durch nicht leitende Querschnitte isoliert sind, wobei die leitenden Vorsprünge bei gegenseitiger Berührung einen Schaltimpuls erzeugen.The invention relates to a safety contact rail for power-operated systems and the like or a safety contact element as a switching hose and the like with an elastic Hollow profile, within which several strip-like, electrically conductive Protrusions are provided that are mutually non-conductive Cross sections are insulated, the conductive protrusions being mutual Touch to generate a switching pulse.
Aus der DE 39 21 533 A1 ist eine gattungsgemäße Sicherheitskontaktschiene für kraftbetätigte Anlagen bekannt, bei der im Innern des Hohlprofils zwei leistenartige, elektrisch leitende Vorsprünge und eine ebenfalls elektrisch leitende Gegenfläche vorgesehen sind. Durch diese Maßnahme soll eine zuverlässige kontaktgabe gewährleistet sein. Weiterhin soll durch diese dreieckförmige Anordnung nach der Impulsauslösung ein Nachverformungsweg vorgesehen sein.DE 39 21 533 A1 describes a generic safety contact rail known for power-operated systems, in which inside the Hollow profile two strip-like, electrically conductive projections and one electrically conductive counter surface are also provided. By this measure is intended to ensure reliable contact his. Furthermore, this triangular arrangement according to the A post-deformation path can be provided for triggering the pulse.
Aufgabe der vorliegenden Erfindung ist es, die gattungsgemäße Sicherheitskontaktschiene bzw. ein Sicherheitskontaktelement so zu verbessern, daß immer eine redundante Kontaktgabe erfolgt, und zwar unabhängig davon, in welcher Richtung die Auslösekraft auf die Sicherheitskontaktschiene oder das Sicherheitskontaktelement einwirkt. Die Aufgabe der Erfindung wird dadurch gelöst, daß zumindest vier leistenartige, elektrisch leitende Vorsprünge vorgesehen sind und daß diese Vorsprünge gleichförmig ausgebildet und gleichmäßig innerhalb des Hohlprofils verteilt angeordnet sind. Die Querschnittsflächen der Vorsprünge sind dabei vorzugsweise so gewählt und so angeordnet, daß sie punktsymmetrisch zur Mittelachse des Hohlprofils verlaufen. Dabei ist es gleich, aus welcher Richtung die Krafteinwirkung auf die Sicherheitskontaktschiene oder das Sicherheitskontaktelement eingeleitet wird, da immer zumindest zwei Vorsprünge sich gegenseitig berühren und gegeneinander Schaltimpulse erzeugen.The object of the present invention is the generic safety contact rail or a safety contact element improve that there is always redundant contacting, and regardless of the direction in which the trigger force on the Safety contact rail or the safety contact element acts. The object of the invention is achieved in that at least four strip-like, electrically conductive projections are provided and that these projections are uniform and even within of the hollow profile are distributed. The cross-sectional areas the projections are preferably chosen and arranged so that they are point symmetrical to the central axis of the hollow profile run. It does not matter from which direction the force is applied on the safety contact rail or the safety contact element is initiated because there are always at least two projections touch each other and generate switching impulses against each other.
Die Querschnittsflächen der Vorsprünge sind dabei so geformt, daß sie im wesentlichen durch zwei rechtwinklige Dreiecke mit unterschiedliche langen Schenkeln definiert werden können. Sie bestehen natürlich nicht aus zwei Dreiecken, sondern sie können in entsprechende Dreiecke aufgeteilt und dadurch beschrieben werden. Die großen Dreiecke grenzen mit ihren Hypotenusen an den Innenumfang des Hohlprofils oder bilden einen Teilumfang des Hohlprofils selbst, wobei die Hypotenusen nicht als Gerade ausgeführt sind, sondern entsprechend dem Innenumfang des Hohlprofils bzw. dem Außenumfang des Hohlprofils gekrümmt sind. An die großen Dreiecke schließen sich kleine Dreiecke an, und zwar so, daß sie an die langen Schenkel der großen Dreiecke mit ihren langen Schenkeln angelehnt sind, so daß die kurzen Schenkel der großen und der kleinen Dreiecke eine Gerade bilden. Zur weiteren Verbesserung der Kontaktgabe untereinander sind an den Ecken zwischen den Hypotenusen und den kurzen Schenkeln der kleinen Dreiecke leistenartige Nasen angebracht, die im wesentlichen in Verlängerung der Hypotenusen der kleinen Dreiecke verlaufen und die Flächen der kleinen Schenkel der kleinen Dreiecke überragen. Durch diese Ausgestaltung der Querschnittsflächen der Vorsprünge entsteht im Innern der Hohlprofile ein Hohlraum entlang der Sicherheitskontaktschiene bzw. des Sicherheitskontaktelements, der im Zentrum durch eine quadratische Querschnittsfläche definiert ist, an dessen Seitenflächen je an einer Kante anschließend Hohlraumstreifen gebildet sind, die durch die leistenartigen Nasen verengt sind, wobei sich an diese Streifen winklig versetzt weitere Hohlraumstreifen anschließen, die bis zum nicht leitenden Querschnitt des Hohlprofils reichen. Es wurde bewußt eine geringe Kontaktfläche insbesondere über die leistenartigen Nasen gewählt. Diese führt zu einem hohen Kontaktdruck, der zur Selbstreinigung der Kontaktflächen beiträgt.The cross-sectional areas of the projections are shaped so that they are essentially two right-angled triangles with different ones long legs can be defined. They exist of course not from two triangles, but they can be in corresponding ones Triangles divided and described thereby. The Large triangles border the inner circumference with their hypotenuses of the hollow profile or form a partial circumference of the hollow profile itself, the hypotenuses are not designed as a straight line, but rather corresponding to the inner circumference of the hollow profile or the outer circumference of the hollow profile are curved. The big triangles small triangles join in such a way that they align with the long ones Thighs of the large triangles ajar with their long thighs so that the short legs of the large and small triangles form a straight line. To further improve contact among themselves are on the corners between the hypotenuses and the short thighs of the little triangles, strip-like noses attached, essentially in extension of the hypotenuses of the small triangles and the surfaces of the small legs tower over the small triangles. This configuration of the Cross-sectional areas of the projections arise in the interior of the hollow profiles a cavity along the safety contact rail or the safety contact element, the one in the center by a square Cross-sectional area is defined, on the side faces of each one Edge then cavity strips are formed by the strip-like Noses are narrowed, being angled at these strips staggeredly connect further cavity strips up to the non-conductive Cross section of the hollow profile are sufficient. It became conscious small contact area, especially via the strip-like noses chosen. This leads to a high contact pressure, which leads to self-cleaning of the contact surfaces.
Zur Verbesserung der Leitfähigkeit in den Querschnittsflächen der Vorsprünge, können elektrisch leitende Drähte oder Litzen aus Metall, Kohlephasern oder Graphitphasern eingelagert sein.To improve the conductivity in the cross-sectional areas of the Protrusions, can be electrically conductive wires or strands of metal, Carbon or graphite fibers can be incorporated.
Die Sicherheitskontaktschiene bzw. das Sicherheitskontaktelement kann zwei verschiedenartige nicht leitende Bereiche aufweisen. Zum einen können die leistenartigen Vorsprünge innerhalb einer Hülle mit ringförmigem Querschnitt angeordnet sein, wobei die Hülle aus nicht leitendem Material hergestellt ist. Zum anderen können die Querschnitte der leistenartigen Vorsprünge selbst Teil des Außenumfangs des Hohlprofils sein, wobei zwischen diesen nicht leitende Abschnitte vorgesehen sind. In dem einen Fall ist der äußere Umfang des Hohlprofils vollständig nicht leitend, weil er von der nicht leitenden Hülle umgeben ist, während im anderen Fall abschnittsweise leitende und nicht leitende Bereiche vorgesehen sind, die den Außenumfang des Hohlprofils bilden. Im erstgenannten Fall mit Hülle ist das Profil auch gegen äußere Einflüsse wie Nässe und dergleichen unempfindlich, weil keine "Fremdkontaktgabe" erfolgen kann.The safety contact rail or the safety contact element can have two different types of non-conductive areas. To the one can with the strip-like projections within a shell annular cross section may be arranged, the sheath from not conductive material is made. On the other hand, the cross sections the strip-like projections themselves part of the outer circumference of the hollow profile, with non-conductive sections between them are provided. In the one case, the outer circumference of the hollow profile completely non-conductive because of the non-conductive shell is surrounded, while in other cases conductive and non-conductive areas are provided which cover the outer circumference of the Form hollow profile. In the former case with cover, the profile is also insensitive to external influences such as moisture and the like, because no "external contact" can take place.
In vorteilhafter Weise wird die Sicherheitskontaktschiene bzw. das Sicherheitskontaktelement mit dem elastischen Hohlprofil aus extrudierbarem Material, insbesondere Gummi oder Polymeren, hergestellt und einstückig einschließlich ggf. der eingebetteten Drähte oder Litzen vorzugsweise als endloses Profil in einem Extruder hergestellt, so daß ein homogenes Profil entsteht. Es können auch Hohlprofile mit 6 oder 8 oder auch mehr Vorsprüngen hergestellt und benutzt werden.The safety contact rail or the Safety contact element with the elastic hollow profile made of extrudable Material, especially rubber or polymers and in one piece including any embedded wires or strands preferably produced as an endless profile in an extruder, so that a homogeneous profile is created. Hollow profiles can also be used 6 or 8 or more protrusions can be made and used.
Dadurch, daß in jedem Fall vier leitende Querschnitte entlang einer
Sicherheitskontaktschiene oder eines Sicherheitskontaktelements
vorgesehen sind, können verschiedene Anschlüsse bzw. Schaltungen
vorgenommen werden. Wenn die Sicherheitskontaktschiene oder das
Sicherheitskontaktelement einseitig an eine Übertragungsleitung angeschlossen
werden, können auf der Gegenseite je zwei nebeneinanderliegende,
elektrisch leitende Querschnitte durch flexible Kontaktbrücken
parallel oder diagonal miteinander verbunden sein, wobei
an der Anschlußseite wahlweise eine Zwei- oder Vierdrahttechnik
gewählt werden kann. Wird eine Zweidrahttechnik gewählt, so sind
vorzugsweise die beiden freien Querschnitte an der Anschlußseite
mittels eines Widerstandes oder einer Diode überbrückt.
Die leitenden Querschnitte können aber auch an dem dem Anschluß
abgewandten Ende der Sicherheitskontaktschiene oder des Sicherheitskontaktelements
mit vier Widerständen oder Dioden flexibel miteinander
verbunden sein. Die Anschlußseite ist dann an einen vierkanaligen
Auswerter angeschlossen, d. h. an einer Anschlußleitung
mit vier Polen.Because four conductive cross sections are provided in each case along a safety contact rail or a safety contact element, different connections or circuits can be made. If the safety contact rail or the safety contact element are connected on one side to a transmission line, two adjacent, electrically conductive cross-sections can be connected to one another in parallel or diagonally by flexible contact bridges on the opposite side, with a choice of two or four-wire technology on the connection side. If a two-wire technique is selected, the two free cross sections on the connection side are preferably bridged by means of a resistor or a diode.
However, the conductive cross sections can also be flexibly connected to one another at the end of the safety contact rail or the safety contact element facing away from the connection with four resistors or diodes. The connection side is then connected to a four-channel evaluator, ie to a connection line with four poles.
Zur weiteren Erläuterung der Erfindung wird auf die Zeichnung verwiesen, in denen Ausführungsbeispiele der Erfindung vereinfacht dargestellt sind.To further explain the invention, reference is made to the drawing, in which embodiments of the invention are simplified are shown.
Es zeigen:
- Fig. 1:
- einen Querschnitt durch eine Sicherheitskontaktschiene,
- Fig. 2:
- einen Querschnitt durch ein Sicherheitskontaktelement,
- Fig. 3:
- einen Querschnitt durch ein modifiziertes Sicherheitskontaktelement,
- Fig. 4 + 5:
- Querschnitte, in denen Verformungen und Berührungen der leistenartigen Vorsprünge untereinander skizziert sind,
- Fig. 6:
- einen Querschnitt durch ein Sicherheitskontaktelement entsprechend Fig. 2, bei dem zusätzlich Pfeile mit Gradeinteilungen angebracht sind, um die Kontaktgabemöglichkeiten gegenüber der Richtung der äußeren Kraft verdeutlichen zu können,
- Fig. 7:
- ein Schaltschema einer Sicherheitskontaktschiene oder eines Sicherheitskontaktelements, bei dem auf dem dem Anschluß gegenüberliegenden Ende je zwei nebeneinanderliegende elektrisch leitende Vorsprünge durch einen Kontaktbrücke miteinander verbunden sind,
- Fig. 8:
- ein Schaltschema entsprechend Fig. 7, bei dem die leitenden Vorsprünge an dem dem Anschluß abgewandten Ende diagonal mittels einer Kontaktbrücke elektrisch miteinander verbunden sind und
- Fig. 9:
- ein Schaltschema entsprechend den Fig. 7 und 8, bei dem die elektrisch leitenden Vorsprünge an dem dem Anschluß abgewandten Ende mittels vier Widerständen oder vier Dioden flexibel miteinander verbunden sind.
- Fig. 1:
- a cross section through a safety contact rail,
- Fig. 2:
- a cross section through a safety contact element,
- Fig. 3:
- a cross section through a modified safety contact element,
- Fig. 4 + 5:
- Cross sections in which deformations and contact of the strip-like projections with one another are sketched,
- Fig. 6:
- 3 shows a cross section through a safety contact element corresponding to FIG. 2, in which arrows with graduations are additionally attached, in order to be able to clarify the possibilities of contacting the direction of the external force,
- Fig. 7:
- 1 shows a circuit diagram of a safety contact rail or a safety contact element, in which two adjacent electrically conductive projections are connected to one another by a contact bridge on the end opposite the connection,
- Fig. 8:
- 7, in which the conductive projections at the end facing away from the connection are diagonally connected to each other by means of a contact bridge and
- Fig. 9:
- a circuit diagram corresponding to FIGS. 7 and 8, in which the electrically conductive projections are flexibly connected to each other at the end facing away from the connection by means of four resistors or four diodes.
In den Fig. 1 bis 6 ist, soweit im einzelnen dargestellt, mit 1 eine Sicherheitskontaktschiene
und mit 2 ein Sicherheitskontaktelement bezeichnet,
die - abgesehen von dem Anschlußfuß 3 bei der Sicherheitskontaktschiene
1 - identisch ausgebildet sind.
Sowohl die Sicherheitskontaktschiene 1 als auch das Sicherheitskontaktelement
2 weisen ein im wesentlichen rundes, elastisches
Hohlprofil 4 auf, das gemäß den Fig. 1, 2 und 6 bis 9 eine Hülle 5
aufweist, die aus nicht leitendem Material hergestellt ist. Innerhalb
der Hülle 5 sind elektrisch leitende Vorsprünge 6 angeordnet, deren
Form in der allgemeinen Beschreibung ausführlich erläutert wurde.
Entlang der Vorsprünge 6 sind vorzugsweise unisolierte Kupferlitzen
7 eingelagert, die die elektrische Leitfähigkeit der Vorsprünge entlang
der Sicherheitskontaktschiene bzw. des Sicherheitskontaktelements
verbessern. An dem inneren Ende der Vorsprünge 6 sind leistenartige
Nasen 9 angeformt.1 to 6, as far as shown in detail, 1 with a safety contact rail
and designated by 2 a safety contact element,
the - apart from the connecting
Das Sicherheitskontaktelement 2 nach Fig. 3 unterscheidet sich von
Fig. 2 im wesentlichen dadurch, daß keine Hülle 5 vorgesehen ist und
daß stattdessen zwischen den elektrisch leitenden Vorsprüngen 6
elektrisch nicht leitende Abschnitte 8 angeordnet sind. Sowohl die Sicherheitskontaktschiene
als auch das Sicherheitskontaktelement sind
einstückig einschließlich der Kupferlitzen extrudiert. The
Wie insbesondere den Fig. 4 und 5 zu entnehmen ist, berühren beim
Verformen der Sicherheitskontaktschiene oder des Sicherheitskontaktelements
zumindest zwei leitende Vorsprünge 6 sich gegenseitig
insbesondere durch die leistenartigen Nasen 9 und erzeugen Kontaktimpulse.As can be seen in particular in FIGS. 4 and 5, touch when
Deform the safety contact rail or the safety contact element
at least two
In den Schaltschemen nach Fig. 7 bis 9 sind die beiden Endquerschnitte
eines beliebig langen Sicherheitskontaktelements dargestellt,
wobei der obere und untere Verbindungsstrich zwischen den beiden
Profilquerschnitten das Sicherheitskontaktelement darstellt. Links ist
die Anschlußseite wiedergegeben und rechts ist das dem Anschluß
entgegengesetzte Ende des Sicherheitskontaktelements dargestellt.
In Fig. 7 sind die Kupferlitzen der leitenden Vorsprünge 6, die übereinander
angeordnet sind, durch Parallelbügel 10 auf der rechten
Seite der Figur miteinander verbunden. Auf der linken Seite sind die
Anschlüsse, die dort mit den Kupferlitzen verbunden sind, mit a bis d
bezeichnet. Sie werden alle benutzt, wenn ein vierartiger Anschluß
mit der entsprechenden Technik gewählt wird. Wird ein zweiartiger
Anschluß gewählt, dann werden die Anschlüsse c und d über einen
Widerstand 11 oder eine Diode 12 überbrückt.7 to 9 are the two end cross sections
of an arbitrarily long safety contact element,
with the top and bottom lines connecting the two
Profile cross sections represents the safety contact element. Left is
reproduced the connection side and on the right is the connection
opposite end of the safety contact element shown.
In Fig. 7, the copper strands of the
Fig. 8 unterscheidet sich von Fig. 7 lediglich dadurch, daß auf dem
dem Anschluß abgewandten Ende des Sicherheitskontaktelements
die Kupferlitzen 7 der Vorsprünge 6 diagonal über entsprechend Diagonalbrücken
13 miteinander verbunden sind. An der Anschlußseite
kann wieder wahlweise eine Zwei- oder Vierdrahttechnik gewählt
werden.Fig. 8 differs from Fig. 7 only in that on the
the end of the safety contact element facing away from the connection
the
Fig. 9 zeigt dasselbe skizzierte Sicherheitskontaktelement wie die in
den Fig. 7 und 8, allerdings mit geänderten Anschlüssen. Auf dem
dem Anschluß entgegengesetzten Ende, also der rechten Seite der
Figur, sind die vier Kupferlitzen 7 über je vier Dioden 12 oder Widerstände
11 miteinander verbunden. Auf der linken Seite werden alle
Anschlüsse a bis d an einen vierkanaligen Auswerter angeschlossen.
Sektoren 1, 2 und 3, 4 verbunden
Claims (11)
dadurch gekennzeichnet, daß zumindest vier leistenartige elektrisch leitende Vorsprünge (6) vorgesehen sind und daß diese Vorsprünge (6) gleichförmig ausgebildet und gleichmäßig innerhalb des Hohlprofils (4) verteilt angeordnet sind.Safety contact rail (1) for power-operated systems and the like or safety contact element (2) as a switching hose and the like with an elastic hollow profile (4), within which several strip-like, electrically conductive projections (6) are provided, which are insulated from one another by non-conductive cross sections, whereby the conductive projections (6) generate a switching pulse when they touch one another,
characterized in that at least four strip-like electrically conductive protrusions (6) are provided and that these protrusions (6) are of uniform design and are distributed uniformly within the hollow profile (4).
dadurch gekennzeichnet, daß die Querschnittsflächen der Vorsprünge (6) so gewählt und so angeordnet sind, daß sie punktsymmetrisch zur Mittelachse des Hohlprofils (4) verlaufen.Safety contact rail or safety contact element according to claim 1,
characterized in that the cross-sectional areas of the projections (6) are selected and arranged such that they are point-symmetrical to the central axis of the hollow profile (4).
dadurch gekennzeichnet, daß die Querschnittsflächen der Vorsprünge (6) im wesentlichen durch zwei rechtwinklige Dreiecke mit unterschiedlich langen Schenkeln definierbar sind, wobei große Dreiecke mit ihren Hypotenusen mit dem Innenumfang des Hohlprofils (4) in Verbindung stehen oder den Außenumfang des Hohlprofils (4) bilden und die Hypotenusen entsprechend gekrümmt sind und wobei kleine Dreiecke sich an die langen Schenkel der großen Dreiecke so anlehnen, daß die kurzen Schenkel der großen und der kleinen Dreiecke eine Gerade bilden.Safety contact rail or safety contact element according to claims 1 or 2,
characterized in that the cross-sectional areas of the projections (6) can be defined essentially by two right-angled triangles with legs of different lengths, large triangles with their hypotenuses being connected to the inner circumference of the hollow profile (4) or forming the outer circumference of the hollow profile (4) and the hypotenuses are correspondingly curved, and small triangles lean against the long legs of the large triangles in such a way that the short legs of the large and small triangles form a straight line.
dadurch gekennzeichnet, daß an den Ecken zwischen den Hypotenusen und den kurzen Schenkeln der kleinen Dreiecke leistenartige Nasen (9) vorgesehen sind, die im wesentlichen in Verlängerung der Hypotenusen der kleinen Dreiecke verlaufen und die Flächen der kleinen Schenkel überragen.Safety contact rail or safety contact element according to claim 3,
characterized in that strip-like lugs (9) are provided at the corners between the hypotenuses and the short legs of the small triangles, said lugs essentially extending the hypotenuses of the small triangles and projecting beyond the surfaces of the small legs.
dadurch gekennzeichnet, daß innerhalb der leistenartigen Vorsprünge (6) zumindest ein elektrisch leitender Draht oder Litze (7) aus Metall, Kohle- bzw. Graphitphasern eingelagert ist.Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that at least one electrically conductive wire or strand (7) made of metal, carbon or graphite fibers is embedded within the strip-like projections (6).
dadurch gekennzeichnet, daß die leistenartigen Vorsprünge (6) innerhalb von Hüllen (5) mit ringförmigem Querschnitt angeordnet sind, wobei die Hüllen (5) aus nicht gleitendem Material hergestellt sind.Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that the strip-like projections (6) are arranged within sleeves (5) with an annular cross-section, the sleeves (5) being made of non-sliding material.
dadurch gekennzeichnet, daß die gekrümmten Hypotenusen der großen Dreiecke Außenumfangsbereiche des Hohlprofils (4) bilden und daß zwischen den leistenartigen Vorsprünge (6) nicht leitende Abschnitte vorgesehen sind. Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that the curved hypotenuses of the large triangles form outer peripheral regions of the hollow profile (4) and that non-conductive sections are provided between the strip-like projections (6).
dadurch gekennzeichnet, daß die Sicherheitskontaktschiene (1) und das Sicherheitskontaktelement (2) mit dem elastischen Hohlprofil (4) aus extrudierbarem Material, insbesondere Gummi oder Polymeren, hergestellt und einstückig einschließlich ggf. eingebetteter Drähte oder Litzen (7), vorzugsweise als endloses Profil, extrudiert sind.Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that the safety contact rail (1) and the safety contact element (2) with the elastic hollow profile (4) made of extrudable material, in particular rubber or polymers, and in one piece including any embedded wires or strands (7), preferably as an endless profile, are extruded.
dadurch gekennzeichnet, daß bei einseitigem elektrischen Anschluß der Sicherheitskontaktschiene (1) oder des Sicherheitskontaktelements (2) an dem dem Anschluß entgegengesetzten Ende bei vier leistenartigen Vorsprünge (6) diese diagonal mit zwei flexiblen Kontaktbrücken (13) elektrisch miteinander verbunden sind und an der Anschlußstelle wahlweise zwei nebeneinander gelagerte Vorsprünge (6) elektrisch angeschlossen sind und die beiden übrigen an der Anschlußseite mittels eines Widerstandes (11) oder einer Diode (12) überbrückt sind oder an der Anschlußstelle ein Auswerter in Vierdrahttechnik angeschlossen ist.Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that with one-sided electrical connection of the safety contact rail (1) or the safety contact element (2) at the end opposite the connection, four strip-like projections (6) are electrically connected to one another diagonally with two flexible contact bridges (13) and optionally at the connection point two projections (6) mounted next to each other are electrically connected and the other two are bridged on the connection side by means of a resistor (11) or a diode (12) or an evaluator in four-wire technology is connected to the connection point.
dadurch gekennzeichnet, daß bei einseitigem elektrischen Anschluß der Sicherheitskontaktschiene (1) oder des Sicherheitskontaktelements (2) an dem dem Anschluß entgegengesetzten Ende bei vier leistenartigen Vorsprünge (6) diese parallel mit zwei flexiblen Kontaktbrücken (10) elektrisch miteinander verbunden sind und an der Anschlußstelle wahlweise zwei nebeneinander gelagerte Vorsprünge (6) elektrisch angeschlossen sind und die beiden übrigen an der Anschlußseite mittels eines Widerstandes (11) oder einer Diode (12) überbrückt sind oder an der Anschlußstelle ein Auswerter in Vierdrahttechnik angeschlossen ist. Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that with one-sided electrical connection of the safety contact rail (1) or of the safety contact element (2) at the end opposite the connection with four strip-like projections (6) these are electrically connected in parallel with two flexible contact bridges (10) and optionally at the connection point two projections (6) mounted next to each other are electrically connected and the other two are bridged on the connection side by means of a resistor (11) or a diode (12) or an evaluator in four-wire technology is connected to the connection point.
dadurch gekennzeichnet, daß bei einseitigem elektrischen Anschluß der Sicherheitskontaktschiene (1) oder des Sicherheitskontaktelements (2) an dem dem Anschluß entgegengesetzten Ende die elektrisch leitenden Vorsprünge (6) mit vier Widerständen (11) oder Dioden (12) flexibel miteinander verbunden sind und daß an der Anschlußseite ein vierkanaliger Auswerter angeschlossen ist.Safety contact rail or safety contact element according to one of the preceding claims,
characterized in that when the safety contact rail (1) or the safety contact element (2) is electrically connected at one end, the electrically conductive projections (6) are flexibly connected to one another with four resistors (11) or diodes (12) at the end opposite the connection, and in that a four-channel evaluator is connected to the connection side.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19846081 | 1998-10-07 | ||
| DE19846081A DE19846081A1 (en) | 1998-10-07 | 1998-10-07 | Safety contact rail or safety contact element |
| US09/549,139 US6429375B1 (en) | 1998-10-07 | 2000-04-11 | Safety contact rail or safety contact element |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0993003A2 true EP0993003A2 (en) | 2000-04-12 |
| EP0993003A3 EP0993003A3 (en) | 2001-01-10 |
| EP0993003B1 EP0993003B1 (en) | 2007-02-28 |
Family
ID=26049341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99117389A Expired - Lifetime EP0993003B1 (en) | 1998-10-07 | 1999-09-04 | Safety contact rail or safety contact element |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6429375B1 (en) |
| EP (1) | EP0993003B1 (en) |
| AT (1) | ATE355595T1 (en) |
| DE (2) | DE19846081A1 (en) |
| ES (1) | ES2281947T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2532820A3 (en) * | 2011-06-06 | 2015-04-22 | Mayser GmbH & Co. KG | Hollow profile for an electrical safety edge switch and method for detecting obstacles with such an electrical safety edge switch |
| CN107437442A (en) * | 2017-07-27 | 2017-12-05 | 安徽新沪电缆有限公司 | A kind of electrical equipment intelligent control cable |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016929A1 (en) * | 2005-04-13 | 2006-10-19 | Menz, Jürgen | Safety switching profile |
| DE102012003382A1 (en) | 2012-02-22 | 2013-08-22 | Jürgen Menz | Safety switching device |
| JP7037721B2 (en) * | 2017-12-08 | 2022-03-17 | 日立金属株式会社 | Manufacturing method of pressure sensor and pressure sensor |
| JP6341346B1 (en) * | 2018-02-15 | 2018-06-13 | 日立金属株式会社 | Pinch detection switch |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3888966D1 (en) * | 1988-08-05 | 1994-05-11 | Karlheinz Beckhausen | Safety contact rail. |
| DE3921533A1 (en) * | 1989-06-30 | 1991-01-03 | Karlheinz Beckhausen | SAFETY CONTACT RAIL |
| DE19509682C1 (en) * | 1994-09-05 | 1996-02-29 | Dancho Zochev Dipl Ing Donkov | Buffering device e.g for horizontally or vertically moving edges of doors or tables |
| DE19502033C1 (en) * | 1995-01-25 | 1996-06-13 | Daimler Benz Ag | Security device for automobile electric window or sunroof |
| DE19602744C2 (en) * | 1996-01-19 | 1999-04-29 | Mayser Gmbh & Co | Safety edge arrangement |
| DE19701412A1 (en) * | 1997-01-17 | 1998-07-23 | Dewitron Elektronik Gmbh | Strip-shaped flexible switching arrangement e.g. for motor vehicle electric windows and sliding roof |
| DE19711600A1 (en) * | 1997-03-20 | 1998-09-24 | Karlheinz Beckhausen | Safety contact element |
| EP0935268A3 (en) * | 1998-02-09 | 2000-09-06 | Shinmei Rubber Ind. Co., Ltd. | Omnidirectional response cable switch |
-
1998
- 1998-10-07 DE DE19846081A patent/DE19846081A1/en not_active Ceased
-
1999
- 1999-09-04 ES ES99117389T patent/ES2281947T3/en not_active Expired - Lifetime
- 1999-09-04 DE DE59914217T patent/DE59914217D1/en not_active Expired - Lifetime
- 1999-09-04 AT AT99117389T patent/ATE355595T1/en active
- 1999-09-04 EP EP99117389A patent/EP0993003B1/en not_active Expired - Lifetime
-
2000
- 2000-04-11 US US09/549,139 patent/US6429375B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2532820A3 (en) * | 2011-06-06 | 2015-04-22 | Mayser GmbH & Co. KG | Hollow profile for an electrical safety edge switch and method for detecting obstacles with such an electrical safety edge switch |
| CN107437442A (en) * | 2017-07-27 | 2017-12-05 | 安徽新沪电缆有限公司 | A kind of electrical equipment intelligent control cable |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0993003A3 (en) | 2001-01-10 |
| DE59914217D1 (en) | 2007-04-12 |
| ES2281947T3 (en) | 2007-10-01 |
| EP0993003B1 (en) | 2007-02-28 |
| ATE355595T1 (en) | 2006-03-15 |
| US6429375B1 (en) | 2002-08-06 |
| DE19846081A1 (en) | 2000-04-13 |
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