EP2093365B1 - Connecting block - Google Patents
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- Publication number
- EP2093365B1 EP2093365B1 EP09001282.4A EP09001282A EP2093365B1 EP 2093365 B1 EP2093365 B1 EP 2093365B1 EP 09001282 A EP09001282 A EP 09001282A EP 2093365 B1 EP2093365 B1 EP 2093365B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- hollow
- hollow profile
- safety edge
- hollow chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- 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
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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
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
Definitions
- the invention relates to a switching strip with an elastically yielding at a force introduction hollow profile with a extending over its entire length, elastically compressible hollow chamber, the at least two mutually opposite in the direction of force introduction, electrically conductive and compressible in a compression of the hollow chamber contact walls having.
- Known switching strips have at the respective ends of the actual switching strip profile, which carries the contact walls, provided on end pieces, which prevent compression of the switching strip profile in the region of this tail. In the immediate end region, the hollow chamber with the contact walls can therefore not be compressed and thus no switching release can be achieved. This is particularly disadvantageous when the safety edges are used for example in subway sliding doors. Safe triggering must also be ensured in the lowermost end region, for example when a shoe or a frame part of a pushchair is clamped in this lowermost region.
- a safety edge which may be provided for example as anti-trap for sunroofs on motor vehicles.
- An elastic hollow profile of this switching strip is triangular cut out at the respective ends over its entire width, with the triangular recess widens to the respective end.
- a hollow chamber lies in the direction of the introduction of force behind the triangular recess.
- WO 01/44611 A2 is an electrical switching strip with a force introduction on its outside elastically yielding hollow profile with a extending over its entire length, elastically compressible hollow chamber, the at least two opposite each other in the direction of force, electrically conductive and compressible in a compression of the hollow chamber contact walls having.
- the hollow profile is provided at its free end with a closure piece which is inserted into the hollow chamber.
- a triangular cutout is provided in front of the hollow chamber above the end piece.
- This triangular cut-out has the effect that the area of the end piece is cut free in terms of its power and thus, in the case of a deformation of the profile in the area of the free end, it is still deformed in front of the connecting piece and thereby triggers a switching signal.
- a safety edge is to be provided, which ensures safe release even with a compression in the immediate end.
- a switching strip with the features of claim 1 is provided for this purpose.
- Advantageous developments of the invention are specified in the subclaims.
- the hollow profile can be compressed more easily in the immediate end region. This results in a stronger deformation and thus a safer release under load at the end.
- the reduced stiffness is provided in an area behind the hollow chamber with the contact walls, when looking at the switching strip from the front side so below the serving as a switching element hollow chamber, the actually inactive end of the hollow chamber, which is indeed provided with a rigid end piece, strong bent in the direction of the introduction of force. As a result, no deformation is achieved in the area of the end piece, but in a region remote from the end piece, which does not necessarily have to be touched by the object to be detected.
- the reduction of the stiffness in the direction of the force introduction behind the hollow chamber designed as a switching element therefore makes it possible to detect the compression of the end of the hollow profile in a region spaced from the end.
- the trained as a switching element hollow chamber is spoken simplistic spoken about a pivot point which is remote from the end of the hollow chamber. In the region of this pivot point and also between the pivot point and the end piece of the hollow chamber, the hollow chamber deforms strongly and the contact walls touch each other, so that a switching signal can be triggered.
- the reduction of the rigidity in a region which lies in the direction of the introduction of force behind the hollow chamber with the contact walls also allows an arrangement of the hollow chamber formed as a switching element in a front region viewed in the direction of the introduction of force.
- the hollow profile at the at least one end at least one wall section with at least one recess.
- the stiffness of the hollow profile can be reduced locally in a simple manner.
- a wall section extending in the longitudinal direction of the hollow profile is provided with a particularly triangular recess at the at least one end.
- the recess expands advantageously towards the end of the hollow profile.
- a recess makes it possible to define an edge around which then formed as a switching element hollow chamber can be bent.
- the provision of a triangular recess on a running in the longitudinal direction of the hollow section wall portion allows to reduce the stiffness of the hollow profile towards the end and at the same time to create space for a significant deformation of the hollow profile. This is because the triangular-shaped recess with its tip defines the region of a pivot point or a rotational edge on which the hollow chamber formed as a switching element is bent. This range can be chosen so that it is far enough away from a stiffening end of the hollow chamber, so that a reliable switching triggering can be achieved even with deformation of the hollow profile at the immediate end.
- the wall section is an inner reinforcing rib.
- the desired reduction in rigidity can be achieved without a sealing effect being impaired in the relaxed state of the hollow profile.
- This is particularly important in the use of the switching strip according to the invention as a sealing profile on doors of considerable importance, for example on subway sliding doors.
- the hollow chamber is provided with the contact walls in a separate switching strip profile, which is fed into the hollow profile.
- the elastic hollow section is made of fire-retardant material.
- the safety edge profile itself can not be made of fire-retardant material for technical reasons, so there are electrically conductive extruded areas provide.
- the contact strip profile then represents only a small percentage of the entire safety edge and does not lead to a significant deterioration of the fire retardant properties of the entire safety edge.
- the presentation of the Fig. 1 shows sections of a switching strip 10 according to the invention, which has an elastic hollow profile 12 and a retracted into the hollow profile 12 switching strip profile 14.
- the safety edge profile 14 is only partially visible, but essentially consists of an elastic tube which defines a compressible hollow chamber having two opposite, electrically conductive contact walls.
- the contact walls face each other in the direction of a force introduction, which in the representation of Fig. 1 indicated by an arrow 16.
- a first contact wall in the switching strip profile 14 is above, a second contact wall opposite the first contact wall below.
- the two contact walls of the switching strip profile 14 are in the area of, in Fig. 1 visible, end connected by means of a resistive element.
- an end cap is placed on the end of the contact strip profile 14, which is then vulcanized, for example.
- the provision of such an end cap leads to a stiffening of the switching strip profile 14 in the region of the immediate end and, in particular, the two opposing contact walls in the immediate end region of the switching strip profile 14 no longer come into contact with each other.
- a longitudinally extending stiffening rib 18 of the hollow profile 12 in the region of the front end of the hollow section 12 is provided with a triangular recess 20 extending to the end of the hollow profile 12 extended.
- the recess 20 forms approximately a right-angled triangle, wherein a hypotenuse of this right-angled triangle forms a cut surface 22 of the reinforcing rib 18 which runs obliquely to the longitudinal direction.
- the cut surface 22 thus extends obliquely downward in the direction of the end of the hollow profile 12 and away from the switching strip profile 14.
- the deformation of the switching strip profile 14 and the hollow section 12 at the application of force directly at the end of the hollow section 12 is shown schematically in the Fig. 2 shown.
- the Fig. 2 shows a calculation model of the hollow section 12, which was constructed by means of the finite element method. Good to see is an end cap 26 of the switching strip profile 14 and an upper electrically conductive contact wall 28 and an opposite electrically conductive contact wall 30 of the switching strip profile 14th
- the hollow section 12 is by means of a test piece 32 which has been moved in the direction of the arrow 16 to the hollow profile, in the region of its free end, in the Fig. 2 right, deformed.
- the test piece 32 causes the horizontal transverse wall 24 of the hollow profile 12 and the hollow chamber 34, in which the switching strip profile 14 is received, are bent about a pivot point 36, which by the voltage applied to the underside of the horizontal transverse wall 24 tip of the triangular recess 20 is defined. Since, of course, there is no hinge or the like at the fulcrum 36, but the hollow profile 12 made of elastic material elastically deforms, the assumption of the fulcrum 36 is only to be understood as generalizing and explanatory.
- the reduced rigidity of the hollow profile 12, caused by the recess 20, at its end and in a region below the switching strip profile 14 leads to a significant deformation of the switching strip profile 14 in the region between the pivot point 36 and the end cap 26. Specifically, the deformation of the switching strip profile 14 causes the two opposing contact walls 28, 30 to touch each other in a region 38.
- This area 38 is how Fig. 2 can be seen, not below the specimen 32, but in contrast to the center of the hollow section 12, in the illustration of Fig. 2 So to the left, offset.
- the region of reduced rigidity of the hollow profile 12 below the switching strip profile 14 thus leads to a compression of the hollow profile 12 in the area its end leads to a deformation of the switching strip profile 14 in a region spaced therefrom, wherein this deformation can then be detected.
- FIG. 3 shows a sectional view of a switching strip 40 according to another embodiment of the invention.
- a hollow profile 42 of the switching strip 40 has approximately the same cross-section as the hollow section 12 of Fig. 1
- a triangular recess 44 in a longitudinal rib 46 of the hollow profile 42 also includes a horizontally extending transverse wall 48 of the hollow profile 42, which forms a lower boundary of a hollow chamber 50 in which the switching strip profile 14 is received.
- the switching strip profile 14 Upon compression of the hollow profile 42 in the region of its end, the switching strip profile 14 will thus turn around an edge 52 which is marked by the tip of the triangular recess 44 which extends to the underside of the switching strip profile 14.
- an end cap 54 of the switching strip profile 14 and a resistor 56 which connects the two opposite and electrically conductive contact walls 58, 60 in the region of the end of the switching strip profile 14 with each other.
- the two contact walls 58, 60 separated by a gap 62 from each other.
- the contact strip profile 14 turns around the edge 52, the contact walls 58, 60 then come into contact with each other and a switching signal can be output.
- open end of the hollow section 42 is sealed before use as a sealing profile with a thin end cap or vulcanized thin end plate, which prevent the ingress of dirt, but not significantly affect the rigidity of the end of the hollow profile.
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- Push-Button Switches (AREA)
Description
Die Erfindung betrifft eine Schaltleiste mit einem bei einer Krafteinleitung auf seine Außenseite elastisch nachgiebigen Hohlprofil mit einer sich über seine gesamte Länge erstreckenden, elastisch komprimierbaren Hohlkammer, die wenigstens zwei einander in Richtung der Krafteinleitung gegenüberliegende, elektrisch leitfähige und bei einer Kompression der Hohlkammer miteinander kontaktierbare Kontaktwandungen aufweist.The invention relates to a switching strip with an elastically yielding at a force introduction hollow profile with a extending over its entire length, elastically compressible hollow chamber, the at least two mutually opposite in the direction of force introduction, electrically conductive and compressible in a compression of the hollow chamber contact walls having.
Bekannte Schaltleisten weisen an den jeweiligen Enden des eigentlichen Schaltleistenprofils, das die Kontaktwandungen trägt, vorgesehene Endstücke auf, die eine Kompression des Schaltleistenprofils im Bereich dieses Endstücks verhindern. Im unmittelbaren Endbereich kann die Hohlkammer mit den Kontaktwandungen also nicht komprimiert werden und damit kann auch keine Schaltauslösung erzielt werden. Dies ist insbesondere dann nachteilig, wenn die Schaltleisten beispielsweise bei U-Bahnschiebetüren eingesetzt werden. Auch im untersten Endbereich muss eine sichere Auslösung gewährleistet sein, beispielsweise dann, wenn ein Schuh oder ein Rahmenteil eines Kinderwagens in diesem untersten Bereich eingeklemmt werden.Known switching strips have at the respective ends of the actual switching strip profile, which carries the contact walls, provided on end pieces, which prevent compression of the switching strip profile in the region of this tail. In the immediate end region, the hollow chamber with the contact walls can therefore not be compressed and thus no switching release can be achieved. This is particularly disadvantageous when the safety edges are used for example in subway sliding doors. Safe triggering must also be ensured in the lowermost end region, for example when a shoe or a frame part of a pushchair is clamped in this lowermost region.
Aus der deutschen Patentschrift
Aus der internationalen Offenlegungsschrift
Aus der deutschen Offenlegungsschrift
Mit der Erfindung soll eine Schaltleiste bereitgestellt werden, die auch bei einer Kompression im unmittelbaren Endbereich eine sichere Auslösung gewährleistet.With the invention, a safety edge is to be provided, which ensures safe release even with a compression in the immediate end.
Erfindungsgemäß ist hierzu eine Schaltleiste mit den Merkmalen von Anspruch 1 vorgesehen. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. Vorgesehen ist eine Schaltleiste mit einem bei einer Krafteinleitung auf seine Außenseite elastisch nachgiebigen Hohlprofil mit einer sich über seine gesamte Länge erstreckenden, elastisch komprimierbaren Hohlkammer, die wenigstens zwei einander in Richtung der Krafteinleitung gegenüberliegende, elektrisch leitfähige und bei einer Kompression der Hohlkammer miteinander kontaktierbare Kontaktwandungen aufweist, bei der das Hohlprofil an wenigstens einem Ende der Schaltleiste in einem Bereich, der in Richtung der Krafteinleitung hinter der Hohlkammer mit den Kontaktwandungen liegt, eine verringerte Steifigkeit aufweist, wobei mittels des Bereiches mit verringerter Steifigkeit ein Drehpunkt oder eine Drehkante definiert ist, so dass die Hohlkammer um einen Drehpunkt abgebogen wird, der bzw. die vom Ende der Hohlkammer entfernt ist, und um den bzw. die die Hohlkammer mit den Kontaktwandungen abgebogen wird, um ein Komprimieren des Endes des Hohlprofils in einem vom Ende beabstandeten Bereich zu detektieren.According to the invention, a switching strip with the features of claim 1 is provided for this purpose. Advantageous developments of the invention are specified in the subclaims. Provided is a switching strip with a force introduction on its outside elastically yielding hollow profile with extending over its entire length, elastically compressible hollow chamber having at least two mutually opposite in the direction of force introduction, electrically conductive and compressible in a compression of the hollow chamber contact walls in which the hollow profile has a reduced rigidity at at least one end of the switching strip in a region which lies behind the hollow chamber with the contact walls in the direction of the introduction of force, wherein a pivot point or a rotational edge is defined by means of the region with reduced rigidity, so that the hollow chamber is bent about a pivot point which is remote from the end of the hollow chamber and around which the hollow chamber is bent with the contact walls to compress the end of the hollow profile in a spaced from the end Detect area.
Durch Vorsehen einer verringerten Steifigkeit an einem Ende der Schaltleiste kann das Hohlprofil im unmittelbaren Endbereich leichter komprimiert werden. Dadurch ergibt sich eine stärkere Verformung und somit eine sicherere Auslösung bei Belastung am Endbereich. Indem die verringerte Steifigkeit in einem Bereich hinter der Hohlkammer mit den Kontaktwandungen vorgesehen ist, bei Betrachtung der Schaltleiste von deren Stirnseite aus also unterhalb der als Schaltelement dienenden Hohlkammer, wird das eigentlich inaktive Ende der Hohlkammer, das ja mit einem starren Endstück versehen ist, stark in Richtung der Krafteinleitung abgebogen. Dadurch wird zwar keine Verformung im Bereich des Endstücks, aber in einem vom Endstück entfernten Bereich erreicht, der nicht notwendigerweise noch von dem zu detektierenden Gegenstand berührt werden muss. Die Verringerung der Steifigkeit in Richtung der Krafteinleitung hinter der als Schaltelement ausgebildeten Hohlkammer erlaubt es daher, das Komprimieren des Endes des Hohlprofils in einem vom Ende beabstandeten Bereich zu detektieren. Die als Schaltelement ausgebildete Hohlkammer wird vereinfachend gesprochen um einen Drehpunkt abgebogen, der vom Ende der Hohlkammer entfernt ist. Im Bereich dieses Drehpunkts und auch zwischen dem Drehpunkt und dem Endstück der Hohlkammer verformt sich die Hohlkammer stark und die Kontaktwandungen berühren einander, so dass ein Schaltsignal ausgelöst werden kann. Die Verringerung der Steifigkeit in einem Bereich, der in Richtung der Krafteinleitung hinter der Hohlkammer mit den Kontaktwandungen liegt, erlaubt auch eine Anordnung der als Schaltelement ausgebildeten Hohlkammer in einem in Richtung der Krafteinleitung gesehen vorderen Bereich. Selbst geringe Verformungen des Hohlprofils führen dadurch zu einer Verformung der Hohlkammer und es ist kein sogenannter Totweg zu befürchten, dass also das Hohlprofil erst ein Stück weit zusammengedrückt werden muss, bis überhaupt eine Verformung der als Schaltelement ausgebildeten Hohlkammer zu erwarten ist.By providing a reduced rigidity at one end of the safety edge, the hollow profile can be compressed more easily in the immediate end region. This results in a stronger deformation and thus a safer release under load at the end. By the reduced stiffness is provided in an area behind the hollow chamber with the contact walls, when looking at the switching strip from the front side so below the serving as a switching element hollow chamber, the actually inactive end of the hollow chamber, which is indeed provided with a rigid end piece, strong bent in the direction of the introduction of force. As a result, no deformation is achieved in the area of the end piece, but in a region remote from the end piece, which does not necessarily have to be touched by the object to be detected. The reduction of the stiffness in the direction of the force introduction behind the hollow chamber designed as a switching element therefore makes it possible to detect the compression of the end of the hollow profile in a region spaced from the end. The trained as a switching element hollow chamber is spoken simplistic spoken about a pivot point which is remote from the end of the hollow chamber. In the region of this pivot point and also between the pivot point and the end piece of the hollow chamber, the hollow chamber deforms strongly and the contact walls touch each other, so that a switching signal can be triggered. The reduction of the rigidity in a region which lies in the direction of the introduction of force behind the hollow chamber with the contact walls, also allows an arrangement of the hollow chamber formed as a switching element in a front region viewed in the direction of the introduction of force. Even small deformations of the hollow profile thereby lead to a deformation of the hollow chamber and there is no so-called dead path to be feared, that therefore the hollow profile must first be compressed a bit until a deformation of the hollow chamber designed as a switching element is to be expected.
Gemäß der Erfindung weist das Hohlprofil an dem wenigstens einen Ende wenigstens einen Wandabschnitt mit wenigstens einer Ausnehmung auf.According to the invention, the hollow profile at the at least one end at least one wall section with at least one recess.
Durch Vorsehen von Ausnehmungen in Wandabschnitten lässt sich die Steifigkeit des Hohlprofils lokal in einfacher Weise verringern.By providing recesses in wall sections, the stiffness of the hollow profile can be reduced locally in a simple manner.
In Weiterbildung der Erfindung ist an dem wenigstens einen Ende ein in Längsrichtung des Hohlprofils verlaufender Wandabschnitt mit einer insbesondere dreieckförmigen Ausnehmung versehen. Die Ausnehmung erweitert sich vorteilhafterweise zum Ende des Hohlprofils hin.In a further development of the invention, a wall section extending in the longitudinal direction of the hollow profile is provided with a particularly triangular recess at the at least one end. The recess expands advantageously towards the end of the hollow profile.
Das Vorsehen einer Ausnehmung erlaubt es, eine Kante zu definieren, um die dann die als Schaltelement ausgebildete Hohlkammer abgebogen werden kann. Das Vorsehen einer dreieckförmigen Ausnehmung an einem in Längsrichtung des Hohlprofils verlaufenden Wandabschnitts erlaubt es, die Steifigkeit des Hohlprofils zum Ende hin zu verringern und gleichzeitig Raum für eine deutliche Verformung des Hohlprofils zu schaffen. Dies deshalb, da die dreieckförmige Ausnehmung mit ihrer Spitze den Bereich eines Drehpunkts oder einer Drehkante vorgibt, an dem die als Schaltelement ausgebildete Hohlkammer abgebogen wird. Dieser Bereich kann so gewählt sein, dass er genügend weit von einem versteifenden Endstück der Hohlkammer entfernt ist, so dass eine zuverlässige Schaltauslösung auch bei Verformung des Hohlprofils am unmittelbaren Ende erreicht werden kann.The provision of a recess makes it possible to define an edge around which then formed as a switching element hollow chamber can be bent. The provision of a triangular recess on a running in the longitudinal direction of the hollow section wall portion allows to reduce the stiffness of the hollow profile towards the end and at the same time to create space for a significant deformation of the hollow profile. This is because the triangular-shaped recess with its tip defines the region of a pivot point or a rotational edge on which the hollow chamber formed as a switching element is bent. This range can be chosen so that it is far enough away from a stiffening end of the hollow chamber, so that a reliable switching triggering can be achieved even with deformation of the hollow profile at the immediate end.
In Weiterbildung der Erfindung ist der Wandabschnitt eine innen liegende Versteifungsrippe.In a further development of the invention, the wall section is an inner reinforcing rib.
Auf diese Weise kann die gewünschte Verringerung der Steifigkeit erreicht werden, ohne dass im entspannten Zustand des Hohlprofils eine Dichtwirkung beeinträchtigt wäre. Dies ist insbesondere bei der Verwendung der erfindungsgemäßen Schaltleiste als Dichtungsprofil an Türen von erheblicher Bedeutung, beispielsweise an U-Bahn-Schiebetüren.In this way, the desired reduction in rigidity can be achieved without a sealing effect being impaired in the relaxed state of the hollow profile. This is particularly important in the use of the switching strip according to the invention as a sealing profile on doors of considerable importance, for example on subway sliding doors.
In Weiterbildung der Erfindung ist die Hohlkammer mit den Kontaktwandungen in einem separaten Schaltleistenprofil vorgesehen, das in das Hohlprofil eingezogen ist.In a further development of the invention, the hollow chamber is provided with the contact walls in a separate switching strip profile, which is fed into the hollow profile.
Auf diese Weise können beispielsweise Brandschutzbestimmungen bei öffentlichen Verkehrsmitteln eingehalten werden, indem das elastische Hohlprofil aus brandhemmendem Material gefertigt wird. Das Schaltleistenprofil selbst kann aus technischen Gründen, so sind dort ja elektrisch leitfähige extrudierte Bereiche vorzusehen, nicht ohne Weiteres aus brandhemmendem Material gefertigt werden. Das Schaltleistenprofil stellt dann lediglich einen geringen Prozentsatz der gesamten Schaltleiste dar und führt nicht zu einer wesentlichen Verschlechterung der brandhemmenden Eigenschaften der gesamten Schaltleiste.In this way, for example, fire protection regulations for public transport can be met by the elastic hollow section is made of fire-retardant material. The safety edge profile itself can not be made of fire-retardant material for technical reasons, so there are electrically conductive extruded areas provide. The contact strip profile then represents only a small percentage of the entire safety edge and does not lead to a significant deterioration of the fire retardant properties of the entire safety edge.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der nachfolgenden Beschreibung bevorzugter Ausführungsformen der Erfindung im Zusammenhang mit den Zeichnungen. Einzelmerkmale der unterschiedlichen dargestellten Ausführungsformen lassen sich dabei in beliebiger Weise miteinander kombinieren, ohne den Rahmen der Erfindung zu überschreiten. In den Zeichnungen zeigen:
- Fig. 1
- eine abschnittsweise perspektivische Vorderansicht einer erfindungsgemäßen Schaltleiste gemäß einer ersten Ausführungsform,
- Fig. 2
- eine schematische Darstellung der Schaltleiste der
Fig. 1 während der Verformung und - Fig. 3
- eine teilweise geschnittene perspektivische Ansicht einer Schaltleiste gemäß einer weiteren Ausführungsform der Erfindung.
- Fig. 1
- 3 is a partial perspective front view of a switching strip according to the invention according to a first embodiment,
- Fig. 2
- a schematic representation of the safety edge of
Fig. 1 during deformation and - Fig. 3
- a partially cutaway perspective view of a safety edge according to another embodiment of the invention.
Die Darstellung der
Die beiden Kontaktwandungen des Schaltleistenprofils 14 sind im Bereich des, in
Um dennoch bei einer Krafteinleitung im Bereich des unmittelbaren Endes des Hohlprofils 12 eine sichere Detektierung zu gewährleisten, ist eine in Längsrichtung verlaufenden Versteifungsrippe 18 des Hohlprofils 12 im Bereich des stirnseitigen Endes des Hohlprofils 12 mit einer dreieckförmigen Ausnehmung 20 versehen, die sich zum Ende des Hohlprofils 12 hin erweitert. Die Ausnehmung 20 bildet dabei etwa ein rechtwinkliges Dreieck, wobei eine Hypotenuse dieses rechtwinkligen Dreiecks eine zur Längsrichtung schräg verlaufende Schnittfläche 22 der Versteifungsrippe 18 bildet. Die Schnittfläche 22 verläuft in Richtung des Endes des Hohlprofils 12 somit schräg nach unten und von dem Schaltleistenprofil 14 weg. Im Bereich der dreieckförmigen Ausnehmung 20 ist eine Steifigkeit des Hohlprofils 12 in einer Richtung der Krafteinleitung 16 somit verringert und bei einer Krafteinleitung im Bereich des Endes wird sich das Schaltleistenprofil 14 zusammen mit dem oberen Bereich des Hohlprofils 12 etwa so verformen, dass es um eine Kante, die die Spitze der dreieckförmigen Ausnehmung 20 bildet und die an der Unterseite einer horizontalen Querwand 24 des Hohlprofils 12 anliegt, abgebogen wird. Dadurch wird das Schaltleistenprofil 14 etwa im Bereich dieses Drehpunkts oder Drehkante, in jedem Fall aber in einem Bereich zwischen dem Drehpunkt und dem Ende des Schaltleistenprofils 14, stark komprimiert, so dass die elektrisch leitfähigen Kontaktwandungen miteinander in Berührung kommen und ein Schaltsignal erzeugt werden kann.In order nevertheless to ensure a reliable detection at a force introduction in the region of the immediate end of the
Die Verformung des Schaltleistenprofils 14 und des Hohlprofils 12 bei Krafteinleitung unmittelbar am Ende des Hohlprofils 12 ist schematisch in der
Das Hohlprofil 12 wird mittels eines Prüfkörpers 32, der in Richtung des Pfeiles 16 auf das Hohlprofil zu bewegt wurde, im Bereich seines freien Endes, das in der
Die Darstellung der
Gut zu erkennen ist in der Darstellung der
Claims (5)
- Safety edge having a hollow profile that is elastically resilient upon force application to the exterior side of the profile having an elastically compressible hollow chamber extending along the entire length of the profile, which chamber has at least two contact walls that are electrically conductive, opposed to each other in the direction of force application and contacting each other upon compression of the hollow chamber, wherein the hollow profile (12; 42) exhibits a reduced rigidity on at least one end of the safety edge (10; 40) in a zone located behind the hollow chamber having the contact walls (58, 60) in the direction of force application, and the rigidity of the hollow profile is locally reduced in that the hollow profile (12; 42) includes at least one wall section with at least one recess (20; 44) on said at least one end.
- Safety edge according to claim 1, characterized in that on said at least one end a wall section extending in the longitudinal direction of the hollow profile (12; 42) is provided with a recess (20; 44).
- Safety edge according to claim 2, characterized in that the recess (20; 44) has a triangular shape and is enlarged towards the end of the hollow profile (12; 42).
- Safety edge according to claim 2 or 3, characterized in that the wall section is a reinforcement rib (18; 46) located in the interior.
- Safety edge according to at least one of the preceding claims, characterized in that the hollow chamber having the contact walls (58, 60) is provided in a separate safety edge profile (14) which is inserted into said hollow profile (12; 42).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008010074A DE102008010074B3 (en) | 2008-02-19 | 2008-02-19 | Safety edge for underground sliding door, has hollow section exhibiting reduced rigidity at ends of safety edge within area, which lies behind hollow chamber with contact walls in direction of force application |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2093365A2 EP2093365A2 (en) | 2009-08-26 |
EP2093365A3 EP2093365A3 (en) | 2010-10-06 |
EP2093365B1 true EP2093365B1 (en) | 2018-05-30 |
Family
ID=40279712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09001282.4A Active EP2093365B1 (en) | 2008-02-19 | 2009-01-30 | Connecting block |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2093365B1 (en) |
DE (1) | DE102008010074B3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9234979B2 (en) | 2009-12-08 | 2016-01-12 | Magna Closures Inc. | Wide activation angle pinch sensor section |
US8493081B2 (en) | 2009-12-08 | 2013-07-23 | Magna Closures Inc. | Wide activation angle pinch sensor section and sensor hook-on attachment principle |
DE202011050716U1 (en) * | 2011-07-13 | 2012-07-27 | Gummi-Welz Gmbh U. Co. Kg Gummi-Kunststofftechnik-Schaumstoffe | tube closure |
US11834886B2 (en) * | 2017-09-19 | 2023-12-05 | Knorr-Bremse Gesellschaft Mit Beschränkter Haftung | Device for protection against entrapment for a door for a vehicle, door system for a vehicle and method for producing a device for protection against entrapment for a door for a vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3312223C2 (en) * | 1983-04-05 | 1987-04-23 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Elastic profile strip on a closing edge of a cover |
DE19632592C2 (en) * | 1996-08-13 | 2003-09-25 | Mayser Gmbh & Co | Safety edge with a hollow profile that is elastically flexible on the outside when force is applied |
DE29921958U1 (en) * | 1999-12-16 | 2001-04-26 | ASO GmbH Antriebs- und Steuerungstechnik, 33154 Salzkotten | Safety contact strip |
-
2008
- 2008-02-19 DE DE102008010074A patent/DE102008010074B3/en active Active
-
2009
- 2009-01-30 EP EP09001282.4A patent/EP2093365B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2093365A2 (en) | 2009-08-26 |
EP2093365A3 (en) | 2010-10-06 |
DE102008010074B3 (en) | 2009-02-19 |
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