EP2093365B1 - Baguette de commutation - Google Patents

Baguette de commutation Download PDF

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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.)
Active
Application number
EP09001282.4A
Other languages
German (de)
English (en)
Other versions
EP2093365A2 (fr
EP2093365A3 (fr
Inventor
Marc Scherraus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mayser GmbH and Co KG
Original Assignee
Mayser GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mayser GmbH and Co KG filed Critical Mayser GmbH and Co KG
Publication of EP2093365A2 publication Critical patent/EP2093365A2/fr
Publication of EP2093365A3 publication Critical patent/EP2093365A3/fr
Application granted granted Critical
Publication of EP2093365B1 publication Critical patent/EP2093365B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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.

Landscapes

  • Push-Button Switches (AREA)

Claims (5)

  1. Baguette de commutation avec un profilé creux élastiquement souple lors d'une application de force sur son côté extérieur qui comporte une chambre creuse, élastiquement compressible, qui s'étend sur toute sa longueur, laquelle présente au moins deux parois de contact opposées l'une à l'autre dans la direction de l'application de force, électriquement conductrices et pouvant venir en contact l'une avec l'autre lors d'une compression de la chambre creuse, dans laquelle le profilé creux (12; 42) présente une rigidité réduite à au moins une extrémité de la baguette de commutation (10; 40) dans une région, qui est située dans la direction de l'application de force derrière la chambre creuse avec les parois de contact (58, 60), et la rigidité du profilé creux est localement réduite du fait que le profilé creux (12; 42) présente à ladite au moins une extrémité au moins une partie de paroi comportant au moins un évidement (20; 44).
  2. Baguette de commutation selon la revendication 1, caractérisée en ce qu'une partie de paroi s'étendant dans la direction longitudinale du profilé creux (12; 42) est dotée d'un évidement (20; 44) à ladite au moins une extrémité.
  3. Baguette de commutation selon la revendication 2, caractérisée en ce que l'évidement (20; 44) est de forme triangulaire et s'élargit en direction de l'extrémité du profilé creux (12; 42).
  4. Baguette de commutation selon la revendication 2 ou 3, caractérisée en ce que la partie de paroi est une nervure de renforcement (18; 46) située à l'intérieur.
  5. Baguette de commutation selon au moins une des revendications précédentes, caractérisée en ce que la chambre creuse avec les parois de contact (58, 60) est prévue dans un profilé de baguette de commutation séparé (14), qui est tiré à l'intérieur du profilé creux (12; 42).
EP09001282.4A 2008-02-19 2009-01-30 Baguette de commutation Active EP2093365B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008010074A DE102008010074B3 (de) 2008-02-19 2008-02-19 Schaltleiste

Publications (3)

Publication Number Publication Date
EP2093365A2 EP2093365A2 (fr) 2009-08-26
EP2093365A3 EP2093365A3 (fr) 2010-10-06
EP2093365B1 true EP2093365B1 (fr) 2018-05-30

Family

ID=40279712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09001282.4A Active EP2093365B1 (fr) 2008-02-19 2009-01-30 Baguette de commutation

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EP (1) EP2093365B1 (fr)
DE (1) DE102008010074B3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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 (de) * 2011-07-13 2012-07-27 Gummi-Welz Gmbh U. Co. Kg Gummi-Kunststofftechnik-Schaumstoffe Schlauchverschluss
EP3685001B1 (fr) * 2017-09-19 2025-01-15 Knorr-Bremse Gesellschaft mit beschränkter Haftung Dispositif de protection contre le pincement pour une portière pour un véhicule, système de portière pour un véhicule et procédé de fabrication d'un dispositif de protection contre le pincement pour une portière pour un véhicule

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312223C2 (de) * 1983-04-05 1987-04-23 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Elastische Profilleiste an einer Schließkante einer Abdeckung
DE19632592C2 (de) * 1996-08-13 2003-09-25 Mayser Gmbh & Co Schaltleiste mit einem bei einer Krafteinleitung auf seine Außenseite elastisch nachgiebigen Hohlprofil
DE29921958U1 (de) * 1999-12-16 2001-04-26 ASO GmbH Antriebs- und Steuerungstechnik, 33154 Salzkotten Sicherheitskontaktleiste

Also Published As

Publication number Publication date
DE102008010074B3 (de) 2009-02-19
EP2093365A2 (fr) 2009-08-26
EP2093365A3 (fr) 2010-10-06

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