EP1977067A2 - Trapping detection seal for opening leaves of vehicles - Google Patents

Trapping detection seal for opening leaves of vehicles

Info

Publication number
EP1977067A2
EP1977067A2 EP07731512A EP07731512A EP1977067A2 EP 1977067 A2 EP1977067 A2 EP 1977067A2 EP 07731512 A EP07731512 A EP 07731512A EP 07731512 A EP07731512 A EP 07731512A EP 1977067 A2 EP1977067 A2 EP 1977067A2
Authority
EP
European Patent Office
Prior art keywords
zone
conductive
joint
straight section
deformation
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.)
Withdrawn
Application number
EP07731512A
Other languages
German (de)
French (fr)
Inventor
Hoang-Giang Nguyen
Chaene Seyranian
Jérôme JOST
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP1977067A2 publication Critical patent/EP1977067A2/en
Withdrawn legal-status Critical Current

Links

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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards

Definitions

  • the invention relates to the field of devices and methods for pinching detection for vehicle openings, and in particular the field of detection joints.
  • US Pat. No. 6,337,549 discloses a capacitive sensor disposed at the top of a post of a vehicle door to prevent the pinching of a finger when the window of the door is raised.
  • the seal comprises an electrode inserted in a deformable part of the seal near a metal part connected to the ground.
  • An electrical device measures the capacitance between the electrode and the ground.
  • the disadvantage of such a capacitive seal is to be influenced by the accidental proximity of other materials than those that the sensor is supposed to detect. For example, water on the glass or dead leaves can produce a variation in capacitance between the electrode and the ground, greatly disrupting the detection device.
  • the patent application EP-A-334 028 (BOSCH) describes a sensor for detecting the pinching of objects or parts of the human body in the case of French windows, or roller shutters driven by an electric motor.
  • the sensor comprises a conductive synthetic material whose electrical resistance can be modified by variation of shape.
  • a fault signal is triggered when the resistor exits a predetermined range.
  • Such a resistive device has the advantage over the capacitive sensor, to measure only the deformation of the sensor and to send a signal only from a deformation threshold.
  • the patent application FR-A-2,670,342 (PEUGEOT-CITRO ⁇ N) describes a device for detecting pinching or cutting a resistive seal.
  • the resistive devices described in the two previous documents have the disadvantage of being sensitive to deformation only in one direction.
  • the fingers to be detected press on the side of the opening and not certainly perpendicular to the seal, so that the effort to undergo the finger before that the resistive junction detects its presence, can be elevated.
  • the invention overcomes the above problems, and in particular provides a seal for multidirectional pinch detection, so as to reduce the effort suffered by a finger or any part of the human body stuck by the closing of a motorized opening.
  • the pinch detection seal for openings, particularly motor vehicle, of elongate shape has an elastically deformable cross section comprising a first recessed area which is disposed between a first conductive zone and a second zone conductor so as to allow the two conductive zones to come into contact with each other during the deformation of the joint in a first direction.
  • a second recessed area is disposed between the first conductive area and a third conductive area, the right section of the anointment being deformable in at least a second direction, different from the first direction, to allow the first conductive area to contact with the third conductive zone during the deformation of the joint in the second direction.
  • the two recessed zones of the cross section communicate.
  • the cross section comprises an insulating zone mechanically connecting the conductive zones.
  • the insulating zone may be of elastomer or rubber.
  • the insulating zone has four portions of lesser thickness serving as a hinge for the deformation of the joint.
  • the cross section comprises a cross-shaped avoided zone separating four conductive zones.
  • the cross section comprises four lobes of compressible material corresponding to the four portions of lesser thickness.
  • the seal has along its length at least one cross section provided with a heel having a hooking shape for cooperating with a vehicle frame or with a door of the vehicle.
  • the cross section of the longitudinal joint is able to deform under the effect of two opposite radial forces, the direction of said forces being included in a deformation cone which comprises at least the first and second directions.
  • the deformation cone is distributed symmetrically with respect to the heel and has an opening angle greater than 80 degrees.
  • at least one of the conductive zones comprises a straight section of wire, surrounded by a straight section of sheath of polymeric material loaded with metal micro particles or loaded with carbon.
  • it relates to a pinch detection method for openings, in particular of a motor vehicle. The method comprises a step in which a contact between two conductive zones of a seal is detected and the cross section of the seal is deformed in a direction taken from at least two possible deformation directions.
  • the detection of the contact is done by measuring the resistance between a first conductive zone on the one hand and at least two other conductive zones on the other hand.
  • a detection joint is used to detect the presence of a body located on the closing path of a motorized vehicle opening.
  • the second and third conductive zones are connected in parallel with termination resistors and with an electrical resistance control device so that contact between any two conductive zones of the seal results in a lowering of the resistance.
  • the controlled electrical resistance of at least one threshold value a computer then controlling a decoupling sequence to the motor actuating the opening.
  • FIG. 1 is a cross-section of a detection joint of the invention in the free state; and FIG 2 is a cross section of a detection joint in the deformed state.
  • the straight section 1 of the pinch detection joint comprises an insulating zone 2, four conductive zones 3 and a recessed zone 4 located at the center of the straight section 1.
  • the insulating zone 2 is delimited on the outside by a substantially circular surface 5 and by a hooking zone 6 in the form of a bead, not shown in the figure, and intended to hang the eye on a vehicle frame or on a opening of the vehicle.
  • the insulating zone 2 has an inner delimitation composed of eight contiguous and substantially circular lobes 7 distributed on the four sides of a square 8, the sides of the square 8 having a substantially double length of the diameter of the lobes 7.
  • the insulating zone 2 is in unfilled polymer, for example rubber.
  • the four conductive zones 3 are of substantially circular shape and housed in the lobes 7 located in the middle of the sides of the square 8.
  • the recessed area 4 is in the form of a cross and comprises the four lobes 7 situated on the vertices of the square 8.
  • the recessed area 4 has a non-zero thickness separating two conductive zones 3, on either side of each of the arms of the cross shape of the recessed area 4.
  • a first conductive zone 3a is located on the side of the square 8 opposite the hooking zone 6.
  • a second conductive zone 3b is located on the right side of FIG. 1 and a third insulating zone 3c is situated on the left side.
  • a fourth conductive zone 3d comprises the attachment zone 6.
  • Each of the conductive zones 3a, 3b, 3c, 3d comprise in their center an electric wire 9a, 9b, 9c, 9d surrounded by a sheath 16 of polymer loaded with metal microparticles or carbon loaded.
  • the conductive zones 3 adhere to the insulating zone 2 and form a deformable monobloc assembly.
  • the thickness of the insulating zone 2 situated between the lobes 7 at the top of the square 8 and the circular surface 5 constitutes four portions of lesser thickness 10.
  • a force on the outer surface of the seal causes an overall deformation of the seal illustrated in FIG. 2.
  • this force may have a first direction 11 aligned with a diagonal of the square 8.
  • a force in a second direction 12 corresponding to the other Diagonal of the square 8 would cause a deformation symmetrical to that shown in Figure 2.
  • the four smaller thickness portions 10 behave like zones of articulation, allowing the square 8 to deform to take a diamond shape 8a.
  • the distance separating the periphery of the first conductive zone 3a from the periphery of the second conductive zone 3b decreases until the conductive zones 3a and 3b come into contact.
  • the conductive areas 3c and 3d also come into contact.
  • the distance separating the first conductive zone 3a from the third conductive zone 3c increases.
  • the electrical resistance between the electrical wires of the conductive zones 3a and 3b is only due to the resistance of the insulating zone 2 and for example is greater than 10 KOhms.
  • the resistance between the two electrical wires 9a and 9b drops sharply to a first threshold value, for example less than 5 KOhms.
  • the opening may include a tailgate pivoting around a horizontal hinge located in the upper part of the tailgate.
  • the opening can also be a swinging or sliding side door.
  • Many vehicles are equipped with a motorized closing mechanism, ensuring the last centimeters of closing. As long as the door or hatchback has not reached these last centimeters, the presence of a finger in the zone separating the opening of the frame of the vehicle can be concealed by a deformable seal to allow the part of the stuck body to remove quickly.
  • the pinch detection joint makes it possible to interrupt the motorized final approach of the opening.
  • the pinch detection j ound travels the entire area where the opening is facing the frame of the vehicle and can be fixed either on the opening or on the frame of the vehicle.
  • the four electrical wires 9a, 9b, 9c, 9d of the four conductive zones 3a, 3b, 3c, 3d extend all along the detection joint.
  • a termination resistor of the order of several KOhms is located at one end of the seal and connected on one side to the ends of the electrical wires 9a and 9d, and on the other side to the electrical wires 9b and 9c.
  • a controller measures the resistance between an end common to the electrical wires 9a and 9d and one end common to the electrical wires 9b and 9c.
  • the controller When an obstacle crushes, in at least one place, a straight section 1 of the joint detection, the measured resistance falls below the value of the termination resistor, since the latter has been short-circuited by the contact between the electric wires 9a and 9b coated with charged polymer.
  • the controller then sends an order to an engine to suspend the closing of the opening.
  • the controller can also control a detachment sequence consisting for example in reopening the opening to allow the obstacle, such as the finger of a child, to withdraw from the closing zone.
  • the termination resistor is located on the same side of the seal as the resistance control device, between the electrical wires 9c and 9d, the resistance check being made between the ends of the wires 9a and 9b.
  • the electrical wires 9a and 9d are connected to each other.
  • the ends of the wires 9b and 9c of the same end of the seal are interconnected.
  • the deformation of the joint occurs until the conductive zone 3a comes into contact, either first with the conductive zone 3b, or simultaneously with the conductive zones 3b and 3d, or only with the conductive zone 3d.
  • There is continuity of detection regardless of the direction of effort between the first direction 11 and the third direction 13. By reason of symmetry, it is the same for the efforts between the second direction 12 and the third direction 13.
  • the junction has a deformation cone comprising at least the first and second directions 11 and 12 and having an opening angle of
  • the spring that constitutes the deformable seal has a much higher stiffness in the transverse direction 13 than in the two preferred directions of deformation that are the first direction 11 and the second direction 12.
  • the stiffness in an intermediate direction 14 has a value between a high stiffness in the transverse direction 13, and a low stiffness in the direction 1 1.
  • the angular distribution of the junction stiffness has a local minimum value for each of the two preferred deformation directions 11 and 13.
  • the seal has a form of flange without attachment heel, positioned far and wide by bonding points on the frame of the vehicle.
  • Such a mode of attachment in the zone 6 is not able to resist a moment of torsion.
  • the joint has a 90 ° deformation cone, regardless of the angular position occupied by the fastening zone with respect to the four conductive zones.
  • the electrical assembly necessary for the detection of a nip favors the symmetry of the behavior of the four conductive zones 3 and puts in series three resistances between each of the four wires, the resistance controller being connected between an end wire and the other end wire through a fourth resistor.
  • the contact between any two of the four conductive zones causes the resistance perceived by the controller to be reduced by at least one resistance value, which is sufficient to detect the pinch and cause the motor to stop. opening of the vehicle.
  • the first conductive zone plays a privileged role and the electrical connection may be a star configuration where one end of the gasket is equipped with three resistors connecting the wire 9a to each of the second, third and fourth son 9b, 9c and 9d.
  • the controller checks the resistance between the wire 9a and the three ends connected in parallel with the wires 9b, 9c and 9d.
  • the four lobes of the recessed area 4 located at the top of the square 8, corresponding to the four smaller thickness portions 10, can be filled with compressible and insulating material other than air or vacuum, such as foam.
  • compressible and insulating material other than air or vacuum, such as foam.
  • the second 3b, third 3c and fourth 3d conductive zones form a single conductive assembly, substantially fixed relative to the hooking heel, surrounding the first conductive zone 3a on a circular arc, while being separated from it by a recessed zone 4.
  • the conductive assembly has a surface concave facing the first conductive zone 3a.
  • the first conductive zone 3a remains integral with the insulating part 2 capable of being deformed along at least the first direction 1 1 and in the second direction 12, and more generally according to any one of the directions included in a deformation cone. Whatever the direction of the compressive force, the first conductive zone 3a comes into contact with the conductive assembly according to any one of the contact points of the concave surface.
  • the recessed area 4 can be partitioned into several distinct recessed areas, the partition being deformable.

Landscapes

  • Seal Device For Vehicle (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Push-Button Switches (AREA)
  • Window Of Vehicle (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)

Abstract

Trapping detection seal for opening leaves, in particular motor vehicle opening leaves, of elongate shape with an elastically deformable cross section 1 comprising a first cut-out region 4 which is arranged between a first conducting region 3a and a second conduction region 3b so as to enable the two conducting regions to come into contact with one another during the deformation of the seal in a first direction 11. A second cut-out region is arranged between the first conducting region 3a and a third conducting region 3c, the cross section 1 of the seal being deformable in at least a second direction 12, which is different from the first direction 11, to enable the first conducting region 3a to come into contact with the third conduction region 3c during the deformation of the seal in the second direction 12.

Description

Joint de détection de pincement pour ouvrants de véhicule. Pinch detection seal for vehicle opening.
L'invention concerne le domaine des dispositifs et procédés de détection de pincement pour ouvrants de véhicule, et en particulier le domaine des joints de détection.The invention relates to the field of devices and methods for pinching detection for vehicle openings, and in particular the field of detection joints.
Dans ce domaine, le brevet US 6 337 549 (BLEDIN) décrit un capteur capacitif disposé en haut d'un montant d'une porte de véhicule pour prévenir le pincement d'un doigt lorsque la vitre de la porte est remontée. Le joint comprend une électrode insérée dans une partie déformable du joint à proximité d'une partie métallique reliée à la terre. Un dispositif électrique mesure la capacité entre l' électrode et la terre. L' inconvénient d'un tel joint capacitif est d' être influencé par la proximité accidentelle d' autres matériaux que ceux que le capteur est censé détecter. Par exemple, de l' eau sur la vitre ou des feuilles mortes peuvent produire une variation de la capacité entre l' électrode et la terre, perturbant grandement le dispositif de détection.In this field, US Pat. No. 6,337,549 (BLEDIN) discloses a capacitive sensor disposed at the top of a post of a vehicle door to prevent the pinching of a finger when the window of the door is raised. The seal comprises an electrode inserted in a deformable part of the seal near a metal part connected to the ground. An electrical device measures the capacitance between the electrode and the ground. The disadvantage of such a capacitive seal is to be influenced by the accidental proximity of other materials than those that the sensor is supposed to detect. For example, water on the glass or dead leaves can produce a variation in capacitance between the electrode and the ground, greatly disrupting the detection device.
La demande de brevet EP-A-334 028 (BOSCH) décrit un capteur pour détecter le pincement d' objets ou de parties de corps humain dans le cas de portes-fenêtres, ou de volets roulants entraînés par un moteur électrique. Le capteur comprend une matière synthétique conductrice dont la résistance électrique peut être modifiée par variation de forme. Un signal de défaut est déclenché quand la résistance sort d'une plage prédéterminée. Un tel dispositif résistif présente l' avantage par rapport au capteur capacitif, de ne mesurer que la déformation du capteur et de n' envoyer un signal qu' à partir d'un seuil de déformation. La demande de brevet FR-A-2 670 342 (PEUGEOT-CITROËN) décrit un dispositif de détection de pincement ou de coupure d'un joint résistif. Les dispositifs résistifs décrits dans les deux documents précédents présentent l' inconvénient de n' être sensibles à la déformation que dans une direction. Or, dans le cas d'un haillon arrière de véhicule automobile, il est courant que les doigts devant être détectés appuient sur le côté de l' ouverture et non pas franchement perpendiculairement au joint, de sorte que l' effort devant subir le doigt avant que le j oint résistif ne détecte sa présence, peut être élevé. L'invention remédie aux problèmes précédents, et notamment propose un joint permettant une détection multidirectionnelle de pincement, de manière à réduire l' effort subi par un doigt ou toute partie du corps humain coincée par la fermeture d'un ouvrant motorisé.The patent application EP-A-334 028 (BOSCH) describes a sensor for detecting the pinching of objects or parts of the human body in the case of French windows, or roller shutters driven by an electric motor. The sensor comprises a conductive synthetic material whose electrical resistance can be modified by variation of shape. A fault signal is triggered when the resistor exits a predetermined range. Such a resistive device has the advantage over the capacitive sensor, to measure only the deformation of the sensor and to send a signal only from a deformation threshold. The patent application FR-A-2,670,342 (PEUGEOT-CITROËN) describes a device for detecting pinching or cutting a resistive seal. The resistive devices described in the two previous documents have the disadvantage of being sensitive to deformation only in one direction. However, in the case of a motor vehicle tailgate, it is common that the fingers to be detected press on the side of the opening and not frankly perpendicular to the seal, so that the effort to undergo the finger before that the resistive junction detects its presence, can be elevated. The invention overcomes the above problems, and in particular provides a seal for multidirectional pinch detection, so as to reduce the effort suffered by a finger or any part of the human body stuck by the closing of a motorized opening.
Selon un mode de réalisation de l'invention, le joint de détection de pincement pour ouvrants, notamment de véhicule automobile, de forme allongée présente une section droite élastiquement déformable comprenant une première zone évidée qui est disposée entre une première zone conductrice et une deuxième zone conductrice de façon à permettre aux deux zones conductrices d' entrer en contact l'une avec l' autre lors de la déformation du joint selon une première direction. Une deuxième zone évidée est disposée entre la première zone conductrice et une troisième zone conductrice, la section droite du j oint étant déformable selon au moins une deuxième direction, différente de la première direction, pour permettre à la première zone conductrice d' entrer en contact avec la troisième zone conductrice lors de la déformation du j oint selon la deuxième direction.According to one embodiment of the invention, the pinch detection seal for openings, particularly motor vehicle, of elongate shape has an elastically deformable cross section comprising a first recessed area which is disposed between a first conductive zone and a second zone conductor so as to allow the two conductive zones to come into contact with each other during the deformation of the joint in a first direction. A second recessed area is disposed between the first conductive area and a third conductive area, the right section of the anointment being deformable in at least a second direction, different from the first direction, to allow the first conductive area to contact with the third conductive zone during the deformation of the joint in the second direction.
On comprend qu'un tel joint, pouvant se déformer selon au moins deux directions différentes et, dans chacune de ces directions, pouvant donner lieu à un contact entre deux zones conductrices, va permettre de détecter des efforts en provenance par exemple d'un doigt, que celui-ci exerce un effort selon l'une ou l' autre des directions de déformation du joint. Cela augmente les directions de détection du j oint.It is understood that such a seal, which can deform in at least two different directions and, in each of these directions, that can give rise to contact between two conductive zones, will allow to detect efforts from eg a finger, that it exerts a force in one or the other direction of deformation of the joint. This increases the detection directions of the eye.
Selon une variante, les deux zones évidées de la section droite communiquent.According to one variant, the two recessed zones of the cross section communicate.
Selon une autre variante, la section droite comprend une zone isolante reliant mécaniquement les zones conductrices. La zone isolante peut être en élastomère ou en caoutchouc.According to another variant, the cross section comprises an insulating zone mechanically connecting the conductive zones. The insulating zone may be of elastomer or rubber.
Avantageusement, la zone isolante présente quatre portions de moindre épaisseur servant d' articulation pour la déformation du joint.Advantageously, the insulating zone has four portions of lesser thickness serving as a hinge for the deformation of the joint.
Avantageusement, la section droite comprend une zone évitée en forme de croix séparant quatre zones conductrices. Selon encore une variante, la section droite comprend quatre lobes de matière compressible correspondant aux quatre portions de moindre épaisseur.Advantageously, the cross section comprises a cross-shaped avoided zone separating four conductive zones. According to another variant, the cross section comprises four lobes of compressible material corresponding to the four portions of lesser thickness.
Selon encore une variante, le joint présente sur sa longueur au moins une section droite munie d'un talon présentant un forme d' accrochage destinée à coopérer avec un bâti du véhicule ou avec un ouvrant du véhicule.According to another variant, the seal has along its length at least one cross section provided with a heel having a hooking shape for cooperating with a vehicle frame or with a door of the vehicle.
Selon encore une variante, la section droite du joint longitudinal est apte à se déformer sous l' effet de deux efforts opposés radiaux, la direction desdits efforts étant comprise dans un cône de déformation qui comprend au moins les première et deuxième directions.According to another variant, the cross section of the longitudinal joint is able to deform under the effect of two opposite radial forces, the direction of said forces being included in a deformation cone which comprises at least the first and second directions.
Avantageusement, le cône de déformation est réparti symétriquement par rapport au talon et présente un angle d' ouverture supérieur à 80 degrés. Selon encore une variante, au moins l'une des zones conductrice comprend une section droite de fil métallique, entourée d'une section droite de gaine en matériau polymère chargé de micro particules métalliques ou chargé de carbone. Selon un autre aspect de l' invention, elle concerne un procédé de détection de pincement pour ouvrants, notamment de véhicule automobile. Le procédé comprend une étape dans laquelle on détecte un contact entre deux zones conductrices d'un joint et on déforme la section droite du joint selon une direction prise parmi au moins deux directions de déformation possibles.Advantageously, the deformation cone is distributed symmetrically with respect to the heel and has an opening angle greater than 80 degrees. According to another variant, at least one of the conductive zones comprises a straight section of wire, surrounded by a straight section of sheath of polymeric material loaded with metal micro particles or loaded with carbon. According to another aspect of the invention, it relates to a pinch detection method for openings, in particular of a motor vehicle. The method comprises a step in which a contact between two conductive zones of a seal is detected and the cross section of the seal is deformed in a direction taken from at least two possible deformation directions.
Avantageusement, la détection du contact se fait en mesurant la résistance entre une première zone conductrice d'une part et au moins deux autres zones conductrices d' autre part.Advantageously, the detection of the contact is done by measuring the resistance between a first conductive zone on the one hand and at least two other conductive zones on the other hand.
Selon encore un autre aspect de l' invention, un joint de détection est utilisé pour détecter la présence d'un corps situé sur la trajectoire de fermeture d'un ouvrant motorisé de véhicule.According to yet another aspect of the invention, a detection joint is used to detect the presence of a body located on the closing path of a motorized vehicle opening.
Dans une utilisation du j oint, la deuxième et la troisième zone conductrices sont reliées en parallèle avec des résistances de terminaison et avec un dispositif de contrôle de résistance électrique de manière que le contact entre deux zones conductrices quelconque du joint se traduise par un abaissement de la résistance électrique contrôlée d' au moins une valeur seuil, un calculateur commandant alors une séquence de décoincement au moteur actionnant l' ouvrant.In use of the junction, the second and third conductive zones are connected in parallel with termination resistors and with an electrical resistance control device so that contact between any two conductive zones of the seal results in a lowering of the resistance. the controlled electrical resistance of at least one threshold value, a computer then controlling a decoupling sequence to the motor actuating the opening.
D' autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée de plusieurs modes de réalisation du dispositif pris à titre d' exemples non limitatifs et illustrés par les dessins annexés, sur lesquels :Other features and advantages of the invention will appear on reading the detailed description of several embodiments of the device taken as non-limiting examples and illustrated by the appended drawings, in which:
-la figure 1 est une section droite d'un j oint de détection de l' invention à l' état libre ; et -la figure 2 est une section droite d'un joint de détection à l' état déformé.FIG. 1 is a cross-section of a detection joint of the invention in the free state; and FIG 2 is a cross section of a detection joint in the deformed state.
Comme illustré sur la figure 1 , la section droite 1 du joint de détection de pincement comprend une zone isolante 2, quatre zones conductrices 3 et une zone évidée 4 située au centre de la section droite 1.As illustrated in FIG. 1, the straight section 1 of the pinch detection joint comprises an insulating zone 2, four conductive zones 3 and a recessed zone 4 located at the center of the straight section 1.
La zone isolante 2 est délimitée à l' extérieur par une surface sensiblement circulaire 5 et par une zone d' accrochage 6 en forme de talon, non représentée sur la figure, et destinée à accrocher le j oint sur un bâti de véhicule ou sur un ouvrant du véhicule. La zone isolante 2 présente une délimitation intérieure composée de huit lobes 7 contigus et sensiblement circulaires et répartis sur les quatre côtés d'un carré 8, les côtés du carré 8 ayant sensiblement une longueur double du diamètre des lobes 7. La zone isolante 2 est en polymère non chargé, par exemple du caoutchouc.The insulating zone 2 is delimited on the outside by a substantially circular surface 5 and by a hooking zone 6 in the form of a bead, not shown in the figure, and intended to hang the eye on a vehicle frame or on a opening of the vehicle. The insulating zone 2 has an inner delimitation composed of eight contiguous and substantially circular lobes 7 distributed on the four sides of a square 8, the sides of the square 8 having a substantially double length of the diameter of the lobes 7. The insulating zone 2 is in unfilled polymer, for example rubber.
Les quatre zones conductrices 3 sont de forme sensiblement circulaire et logées dans les lobes 7 situés au milieu des côtés du carré 8.The four conductive zones 3 are of substantially circular shape and housed in the lobes 7 located in the middle of the sides of the square 8.
La zone évidée 4 est en forme de croix et comprend les quatre lobes 7 situés sur les sommets du carré 8. La zone évidée 4 présente une épaisseur non nulle séparant deux zones conductrices 3, de part et d' autre de chacun des bras de la forme en croix de la zone évidée 4.The recessed area 4 is in the form of a cross and comprises the four lobes 7 situated on the vertices of the square 8. The recessed area 4 has a non-zero thickness separating two conductive zones 3, on either side of each of the arms of the cross shape of the recessed area 4.
Une première zone conductrice 3a est située sur le côté du carré 8 opposé à la zone d' accrochage 6. Une deuxième zone conductrice 3b est située sur le côté droit de la figure 1 et une troisième zone isolante 3c est située sur le côté gauche. Une quatrième zone conductrice 3d comprend la zone d' accrochage 6. Chacune des zones conductrices 3a, 3b, 3c, 3d comprennent en leur centre un fil électrique 9a, 9b, 9c, 9d entouré d'une gaine 16 en polymère chargé de microparticules métalliques ou bien chargé de carbone. Les zones conductrices 3 adhèrent à la zone isolante 2 et forment un ensemble monobloc déformable. L' épaisseur de la zone isolante 2 située entre les lobes 7 au sommet du carré 8 et la surface circulaire 5, constitue quatre portions de moindre épaisseur 10.A first conductive zone 3a is located on the side of the square 8 opposite the hooking zone 6. A second conductive zone 3b is located on the right side of FIG. 1 and a third insulating zone 3c is situated on the left side. A fourth conductive zone 3d comprises the attachment zone 6. Each of the conductive zones 3a, 3b, 3c, 3d comprise in their center an electric wire 9a, 9b, 9c, 9d surrounded by a sheath 16 of polymer loaded with metal microparticles or carbon loaded. The conductive zones 3 adhere to the insulating zone 2 and form a deformable monobloc assembly. The thickness of the insulating zone 2 situated between the lobes 7 at the top of the square 8 and the circular surface 5 constitutes four portions of lesser thickness 10.
Un effort sur la surface extérieure du joint provoque une déformation globale du joint illustrée en figure 2. En particulier, cet effort peut avoir une première direction 11 alignée avec une diagonale du carré 8. Un effort selon une deuxième direction 12 correspondant à l' autre diagonale du carré 8 provoquerait une déformation symétrique à celle illustrée en figure 2.A force on the outer surface of the seal causes an overall deformation of the seal illustrated in FIG. 2. In particular, this force may have a first direction 11 aligned with a diagonal of the square 8. A force in a second direction 12 corresponding to the other Diagonal of the square 8 would cause a deformation symmetrical to that shown in Figure 2.
On va décrire maintenant l' effet de la déformation selon la direction privilégiée 11. Les quatre portions de moindre épaisseur 10 se comportent comme des zones d' articulation, permettant au carré 8 de se déformer pour prendre une forme de losange 8a. Au cours de cette déformation, la distance séparant le pourtour de la première zone conductrice 3a du pourtour de la deuxième zone conductrice 3b diminue jusqu' à ce que les zones conductrices 3a et 3b entrent en contact. Parallèlement, les zones conductrices 3c et 3d entrent également en contact. Inversement, la distance séparant la première zone conductrice 3a de la troisième zone conductrice 3c augmente.The effect of the deformation in the preferred direction 11 will now be described. The four smaller thickness portions 10 behave like zones of articulation, allowing the square 8 to deform to take a diamond shape 8a. During this deformation, the distance separating the periphery of the first conductive zone 3a from the periphery of the second conductive zone 3b decreases until the conductive zones 3a and 3b come into contact. In parallel, the conductive areas 3c and 3d also come into contact. Conversely, the distance separating the first conductive zone 3a from the third conductive zone 3c increases.
Avant que les pourtours de la première zone conductrice 3a et de la deuxième zone conductrice 3b n' entrent en contact, la résistance électrique entre les fils électriques des zones conductrices 3a et 3b n' est due qu' à la résistance de la zone isolante 2 et par exemple est supérieure à 10 KOhms. Dès que les pourtours des zones conductrices 3a et 3b entrent en contact, la résistance entre les deux fils électriques 9a et 9b chute brutalement à une première valeur de seuil, par exemple inférieure à 5 KOhms. Lorsque l' on continue à déformer le joint et que l' on provoque la déformation des gaines conductrices 16 entourant les fils électriques 9a et 9b, le rapprochement des particules conductrices du polymère chargé contribue en grande partie à diminuer la résistance entre les deux fils électriques 9a et 9b, pour atteindre une valeur de l' ordre de 300 Ohms.Before the peripheries of the first conducting zone 3a and the second conductive zone 3b come into contact, the electrical resistance between the electrical wires of the conductive zones 3a and 3b is only due to the resistance of the insulating zone 2 and for example is greater than 10 KOhms. As soon as the peripheries of the conductive zones 3a and 3b come into contact, the resistance between the two electrical wires 9a and 9b drops sharply to a first threshold value, for example less than 5 KOhms. When one continues to deform the seal and that deformation of the conductive sheaths 16 surrounding the electrical wires 9a and 9b causes the bringing together of the conductive particles of the charged polymer to largely reduce the resistance between the two electric wires 9a and 9b, to reach a value of order of 300 Ohms.
On va maintenant décrire l'utilisation du joint de détection pour détecter la présence d'un corps situé sur la trajectoire de fermeture d'un ouvrant motorisé d'un véhicule automobile. L' ouvrant peut être notamment un hayon arrière pivotant autour d'une charnière horizontale située en partie haute du hayon. L' ouvrant peut également être une porte latérale battante ou coulissante. De nombreux véhicules sont équipés d'un mécanisme de fermeture motorisé, assurant les derniers centimètres de fermeture. Tant que la porte ou le hayon n' a pas atteint ces derniers centimètres, la présence d'un doigt dans la zone séparant l' ouvrant du bâti du véhicule peut être encaissée par un joint déformable pour permettre à la partie du corps coincée de se retirer rapidement. Le joint de détection de pincement permet d' interrompre le rapprochement final motorisé de l' ouvrant. Le j oint de détection de pincement parcourt toute la zone où l' ouvrant est en regard du bâti du véhicule et peut être fixé, soit sur l' ouvrant, soit sur le bâti du véhicule. Les quatre fils électriques 9a, 9b, 9c, 9d des quatre zones conductrices 3a, 3b, 3c, 3d s' étendent tout le long du joint de détection. Une résistance de terminaison de l' ordre de plusieurs KOhms est située à une extrémité du joint et raccordée d'un côté aux extrémités des fils électriques 9a et 9d, et de l' autre aux fils électriques 9b et 9c. De l' autre côté du joint, un contrôleur mesure la résistance entre une extrémité commune aux fils électriques 9a et 9d et une extrémité commune aux fils électriques 9b et 9c. Lorsqu'un obstacle écrase, en au moins un endroit, une section droite 1 du joint de détection, la résistance mesurée descend en dessous de la valeur de la résistance de terminaison, car cette dernière a été court-circuitée par le contact entre les fils électriques 9a et 9b enrobés de polymère chargé. Le contrôleur envoie alors un ordre à un moteur de suspendre la fermeture de l' ouvrant. Le contrôleur peut commander également une séquence de décoincement consistant par exemple à rouvrir l' ouvrant pour permettre à l' obstacle, tel que le doigt d'un enfant, de se retirer de la zone de fermeture.We will now describe the use of the detection seal to detect the presence of a body located on the closing path of a motorized opening of a motor vehicle. The opening may include a tailgate pivoting around a horizontal hinge located in the upper part of the tailgate. The opening can also be a swinging or sliding side door. Many vehicles are equipped with a motorized closing mechanism, ensuring the last centimeters of closing. As long as the door or hatchback has not reached these last centimeters, the presence of a finger in the zone separating the opening of the frame of the vehicle can be concealed by a deformable seal to allow the part of the stuck body to remove quickly. The pinch detection joint makes it possible to interrupt the motorized final approach of the opening. The pinch detection j ound travels the entire area where the opening is facing the frame of the vehicle and can be fixed either on the opening or on the frame of the vehicle. The four electrical wires 9a, 9b, 9c, 9d of the four conductive zones 3a, 3b, 3c, 3d extend all along the detection joint. A termination resistor of the order of several KOhms is located at one end of the seal and connected on one side to the ends of the electrical wires 9a and 9d, and on the other side to the electrical wires 9b and 9c. On the other side of the seal, a controller measures the resistance between an end common to the electrical wires 9a and 9d and one end common to the electrical wires 9b and 9c. When an obstacle crushes, in at least one place, a straight section 1 of the joint detection, the measured resistance falls below the value of the termination resistor, since the latter has been short-circuited by the contact between the electric wires 9a and 9b coated with charged polymer. The controller then sends an order to an engine to suspend the closing of the opening. The controller can also control a detachment sequence consisting for example in reopening the opening to allow the obstacle, such as the finger of a child, to withdraw from the closing zone.
Dans une variante, la résistance de terminaison est située du même côté du joint que le dispositif de contrôle de résistance, entre les fils électriques 9c et 9d, le contrôle de résistance étant fait entre les extrémités des fils 9a et 9b. A l' extrémité opposée du joint, les fils électriques 9a et 9d sont reliés entre eux. De même les extrémités des fils 9b et 9c de la même extrémité du joint sont reliés entre eux. Ainsi, est détecté un contact quelconque entre la première zone conductriceAlternatively, the termination resistor is located on the same side of the seal as the resistance control device, between the electrical wires 9c and 9d, the resistance check being made between the ends of the wires 9a and 9b. At the opposite end of the joint, the electrical wires 9a and 9d are connected to each other. Similarly, the ends of the wires 9b and 9c of the same end of the seal are interconnected. Thus, any contact between the first conductive zone is detected
3a avec l'une ou l' autre des deuxième et troisième zones conductrices 3b et 3c.3a with one or the other of the second and third conductive areas 3b and 3c.
On va maintenant décrire la déformation du joint soumis à un effort de compression, selon une direction comprise entre la première direction 11 et la deuxième direction 12. Lorsqu'un effort comprime le joint selon une direction 13 sensiblement perpendiculaire au carré 8 opposé à la zone d' accrochage 6, les lobes 7 se déforment et le carré 8 est transformé en un polygone allongé (en forme de haricot) de même périmètre que le carré 8 jusqu' à ce que la première zone conductrice 3a vienne en contact avec la quatrième zone conductrice 3d. Lors d'un effort selon une direction 14, comprise entre la première direction 11 et la troisième direction 13, le carré 8 se transforme en un parallélogramme dont le grand côté est parallèle à la zone d' accrochage 6 et dont les petits côtés inclinés comprennent les deuxième et troisième zones conductrices 3b et 3c. La déformation du joint a lieu jusqu' à ce que la zone conductrice 3a entre en contact, soit en premier avec la zone conductrice 3b, soit simultanément avec les zones conductrices 3b et 3d, soit uniquement avec la zone conductrice 3d. Il y a continuité de détection quel que soit la direction de l' effort comprise entre la première direction 11 et la troisième direction 13. Par raison de symétrie, il en est de même pour les efforts compris entre la deuxième direction 12 et la troisième direction 13. Le j oint présente un cône de déformation comprenant au moins les première et deuxième directions 11 et 12 et présentant un angle d' ouverture deWe will now describe the deformation of the seal subjected to a compressive force, in a direction between the first direction 11 and the second direction 12. When a force compresses the seal in a direction 13 substantially perpendicular to the square 8 opposite the zone 6, the lobes 7 are deformed and the square 8 is transformed into an elongated polygon (bean-shaped) of the same perimeter as the square 8 until the first conductive zone 3a comes into contact with the fourth zone 3d driver. During an effort in a direction 14, between the first direction 11 and the third direction 13, the square 8 is transformed into a parallelogram whose long side is parallel to the attachment zone 6 and whose small inclined sides include the second and third conductive zones 3b and 3c. The deformation of the joint occurs until the conductive zone 3a comes into contact, either first with the conductive zone 3b, or simultaneously with the conductive zones 3b and 3d, or only with the conductive zone 3d. There is continuity of detection regardless of the direction of effort between the first direction 11 and the third direction 13. By reason of symmetry, it is the same for the efforts between the second direction 12 and the third direction 13. The junction has a deformation cone comprising at least the first and second directions 11 and 12 and having an opening angle of
90° .90 °.
Le ressort que constitue le joint déformable présente une raideur beaucoup plus élevée dans la direction transversale 13 que dans les deux directions privilégiées de déformation que sont la première direction 11 et la deuxième direction 12. La raideur selon une direction intermédiaire 14 présente une valeur comprise entre une raideur élevée dans la direction transversale 13, et une raideur faible dans la direction 1 1. La répartition angulaire de la raideur du j oint présente une valeur de minimum local pour chacune des deux directions de déformation privilégiée 11 et 13.The spring that constitutes the deformable seal has a much higher stiffness in the transverse direction 13 than in the two preferred directions of deformation that are the first direction 11 and the second direction 12. The stiffness in an intermediate direction 14 has a value between a high stiffness in the transverse direction 13, and a low stiffness in the direction 1 1. The angular distribution of the junction stiffness has a local minimum value for each of the two preferred deformation directions 11 and 13.
Dans le cas où le talon de fixation sur le bâti, à l' endroit de la zone d' accrochage 6, est apte à supporter un moment de torsion, un effort horizontal poussant la troisième zone conductrice 3c vers la droite des figures provoque une déformation similaire à celle illustrée en figure 2. L' angle d' ouverture du cône de déformation est de 180°.In the case where the mounting heel on the frame, at the location of the attachment zone 6, is able to withstand a torsional moment, a horizontal force pushing the third conductive zone 3c to the right of the figures causes a deformation similar to that shown in Figure 2. The opening angle of the deformation cone is 180 °.
Selon une autre variante de réalisation du joint, celui-ci a une forme de boudin sans talon d' accrochage, positionné de loin en loin par des points de collage sur le bâti du véhicule. Un tel mode d' accrochage dans la zone 6 n' est pas apte à résister à un moment de torsion. Le joint cependant présente un cône de déformation de 90°, et ceci quelle que soit la position angulaire qu' occupe la zone d' accrochage par rapport aux quatre zones conductrices. Dans cette variante, le montage électrique nécessaire à la détection d'un pincement privilégie la symétrie de comportement des quatre zones conductrices 3 et met en série trois résistances entre chacun des quatre fils, le contrôleur de résistance étant branché entre un fil d' extrémité et l' autre fil d' extrémité à travers une quatrième résistance. Le contact entre deux zones conductrices 3 quelconques prises parmi les quatre, provoque l' abaissement de la résistance perçue par le contrôleur d' au moins une valeur de résistance, ce qui est suffisant pour détecter le pincement et provoquer l' arrêt du moteur entraînant l' ouvrant du véhicule.According to another embodiment of the seal, it has a form of flange without attachment heel, positioned far and wide by bonding points on the frame of the vehicle. Such a mode of attachment in the zone 6 is not able to resist a moment of torsion. The joint, however, has a 90 ° deformation cone, regardless of the angular position occupied by the fastening zone with respect to the four conductive zones. In this variant, the electrical assembly necessary for the detection of a nip favors the symmetry of the behavior of the four conductive zones 3 and puts in series three resistances between each of the four wires, the resistance controller being connected between an end wire and the other end wire through a fourth resistor. The contact between any two of the four conductive zones causes the resistance perceived by the controller to be reduced by at least one resistance value, which is sufficient to detect the pinch and cause the motor to stop. opening of the vehicle.
Lorsque le joint est muni d'un talon de fixation, la première zone conductrice j oue un rôle privilégié et le branchement électrique peut être une configuration en étoile où une extrémité du joint est équipée de trois résistances reliant le fil 9a à chacune des deuxième, troisième et quatrième fils 9b, 9c et 9d. Du côté opposé, le contrôleur vérifie la résistance entre le fil 9a et les trois extrémités branchées en parallèle des fils 9b, 9c et 9d.When the gasket is provided with a fixing lug, the first conductive zone plays a privileged role and the electrical connection may be a star configuration where one end of the gasket is equipped with three resistors connecting the wire 9a to each of the second, third and fourth son 9b, 9c and 9d. On the opposite side, the controller checks the resistance between the wire 9a and the three ends connected in parallel with the wires 9b, 9c and 9d.
Selon un autre mode de réalisation, les quatre lobes de la zone évidée 4 situés au sommet du carré 8, correspondant aux quatre portions de moindre épaisseur 10, peuvent être remplis de matière compressible et isolant autrement que l' air ou le vide, telle que de la mousse. Il est cependant important que l' espace séparant deux zones conductrices adjacentes reste libre, de manière à permettre leur contact lors de la déformation du j oint.According to another embodiment, the four lobes of the recessed area 4 located at the top of the square 8, corresponding to the four smaller thickness portions 10, can be filled with compressible and insulating material other than air or vacuum, such as foam. However, it is important that the space separating two adjacent conductive zones remains free, so as to allow their contact during deformation of the eye.
Selon encore une autre variante, il est possible que les deuxième 3b, troisième 3c et quatrième 3d zones conductrices ne forment qu'un seul ensemble conducteur, sensiblement fixe par rapport au talon d' accrochage, entourant la première zone conductrice 3a sur un arc de cercle, tout en étant séparé d'elle par une zone évidée 4. L' ensemble conducteur présente une surface concave en regard de la première zone conductrice 3a. La première zone conductrice 3a reste solidaire de la partie isolante 2 susceptible de se déformer selon au moins la première direction 1 1 et selon la deuxième direction 12, et plus généralement selon l'une quelconque des directions comprises dans un cône de déformation. Quelle que soit la direction de l' effort de compression, la première zone conductrice 3a entre en contact avec l' ensemble conducteur selon l'un quelconque des points de contact de la surface concave.According to yet another variant, it is possible that the second 3b, third 3c and fourth 3d conductive zones form a single conductive assembly, substantially fixed relative to the hooking heel, surrounding the first conductive zone 3a on a circular arc, while being separated from it by a recessed zone 4. The conductive assembly has a surface concave facing the first conductive zone 3a. The first conductive zone 3a remains integral with the insulating part 2 capable of being deformed along at least the first direction 1 1 and in the second direction 12, and more generally according to any one of the directions included in a deformation cone. Whatever the direction of the compressive force, the first conductive zone 3a comes into contact with the conductive assembly according to any one of the contact points of the concave surface.
Selon encore une autre variante, la zone évidée 4 peut être cloisonnée en plusieurs zones évidées distinctes, la cloison étant déformable. According to yet another variant, the recessed area 4 can be partitioned into several distinct recessed areas, the partition being deformable.

Claims

REVENDICATIONS 1 - Joint de détection de pincement pour ouvrants, notamment de véhicule automobile, de forme allongée présentant une section droite CLAIMS 1 - Pinch detection seal for openings, in particular for motor vehicles, of elongated shape having a straight section
( 1 ) élastiquement déformable comprenant une première zone évidée (4) qui est disposée entre une première zone conductrice (3a) et une deuxième zone conductrice (3b) de façon à permettre aux deux zones conductrices (3a 3b) d' entrer en contact l'une avec l' autre lors de la déformation du joint selon une première direction ( 11 ), caractérisé par le fait qu'une deuxième zone évidée (4) est disposée entre la première zone conductrice (3a) et une troisième zone conductrice (3c), la section droite ( 1 ) du j oint étant déformable selon au moins une deuxième direction ( 12), différente de la première direction ( 11 ), pour permettre à la première zone conductrice (3a) d' entrer en contact avec la troisième zone conductrice (3c) lors de la déformation du j oint selon la deuxième direction (12) et par le fait que la section droite présente une zone d' accrochage située en regard de la première zone conductrice 3a..(1) elastically deformable comprising a first recessed zone (4) which is arranged between a first conductive zone (3a) and a second conductive zone (3b) so as to allow the two conductive zones (3a 3b) to come into contact one with the other during the deformation of the joint in a first direction (11), characterized in that a second recessed zone (4) is arranged between the first conductive zone (3a) and a third conductive zone (3c ), the straight section (1) of the joint being deformable in at least a second direction (12), different from the first direction (11), to allow the first conductive zone (3a) to come into contact with the third conductive zone (3c) during deformation of the joint in the second direction (12) and by the fact that the straight section has an attachment zone located opposite the first conductive zone 3a.
2 - Joint selon la revendication 1 , dans lequel les deux zones évidées (4) de la section droite communiquent. 3 - Joint selon l'une quelconque des revendications précédentes, dans lequel la section droite ( 1 ) comprend une zone isolante (2) reliant mécaniquement les zones conductrices (3).2 - Joint according to claim 1, in which the two hollowed out areas (4) of the straight section communicate. 3 - Joint according to any one of the preceding claims, in which the straight section (1) comprises an insulating zone (2) mechanically connecting the conductive zones (3).
4 - Joint selon la revendication 3, dans laquelle la zone isolante4 - Joint according to claim 3, in which the insulating zone
(2) présente quatre portions (10) de moindre épaisseur servant d' articulation pour la déformation du joint.(2) has four portions (10) of lesser thickness serving as articulation for the deformation of the joint.
5 - Joint selon la revendication 4, dans lequel la section droite ( 1 ) comprend une zone évidée (4) en forme de croix séparant quatre zones conductrices (3a, 3b, 3c, 3d). 6 - Joint selon l'une quelconque des revendications 4 ou 5, dans lequel la section droite ( 1 ) comprend quatre lobes (7) de matière compressible correspondant aux quatre portions ( 10) de moindre épaisseur. 7 - Joint selon l'une quelconque des revendications précédentes, présentant sur sa longueur au moins une section droite ( 1 ) munie d'un talon présentant une forme d' accrochage destinée à coopérer avec un bâti du véhicule ou avec un ouvrant du véhicule et dans lequel la zone d' accrochage (6) avec le talon est apte à supporter un moment de torsion.5 - Joint according to claim 4, in which the straight section (1) comprises a recessed zone (4) in the shape of a cross separating four conductive zones (3a, 3b, 3c, 3d). 6 - Joint according to any one of claims 4 or 5, in which the straight section (1) comprises four lobes (7) of compressible material corresponding to the four portions (10) of lesser thickness. 7 - Joint according to any one of the preceding claims, having over its length at least one straight section (1) provided with a heel having a hooking shape intended to cooperate with a frame of the vehicle or with an opening of the vehicle and in which the attachment zone (6) with the heel is capable of supporting a torque.
8 - Joint selon l'une quelconque des revendications précédentes, dans lequel la section droite ( 1 ) du joint longitudinal est apte à se déformer sous l' effet de deux efforts opposés radiaux, la direction desdits efforts étant comprise dans un cône de déformation qui comprend au moins les première ( 11 ) et deuxième ( 12) directions.8 - Joint according to any one of the preceding claims, in which the straight section (1) of the longitudinal joint is able to deform under the effect of two opposing radial forces, the direction of said forces being included in a cone of deformation which comprises at least the first (11) and second (12) directions.
9- Joint selon les revendications 7 et 8 prises dans leur ensemble, dans lequel le cône de déformation est réparti symétriquement par rapport au talon et présente un angle d' ouverture supérieur à 80 degrés. 10- Joint selon l'une quelconque des revendications précédentes, dans lequel au moins l'une des zones conductrices (3a) comprend une section droite de fil métallique (9a), entourée d'une section droite de gaine ( 16) en matériau polymère chargé de micro particules métalliques ou chargé de carbone. 11 - Procédé de détection de pincement pour ouvrants, notamment de véhicule automobile, dans lequel on détecte un contact entre deux zones conductrices (3a, 3b) d'un joint, caractérisé par le fait qu' on accroche le joint par une zone d' accrochage, l'une des zones conductrices étant orientée en regard de ladite zone d' accrochage qu' on déforme la section droite ( 1 ) du joint selon une direction prise parmi au moins deux directions de déformation possibles (11 , 12).9- Joint according to claims 7 and 8 taken as a whole, in which the deformation cone is distributed symmetrically relative to the heel and has an opening angle greater than 80 degrees. 10- Joint according to any one of the preceding claims, in which at least one of the conductive zones (3a) comprises a straight section of metal wire (9a), surrounded by a straight section of sheath (16) of polymer material loaded with micro metallic particles or loaded with carbon. 11 - Method for detecting pinching for openings, in particular for motor vehicles, in which contact is detected between two conductive zones (3a, 3b) of a seal, characterized by the fact that the seal is hooked by a zone of hooking, one of the conductive zones being oriented opposite said hooking zone that the cross section (1) of the joint is deformed in a direction taken from at least two possible deformation directions (11, 12).
12-Procédé selon la revendication 1 1 , dans lequel la détection du contact se fait en mesurant la résistance entre une première zone conductrice (3a) d'une part et au moins deux autres zones conductrices12-Method according to claim 1 1, in which the contact detection is done by measuring the resistance between a first conductive zone (3a) on the one hand and at least two other conductive zones
(3b, 3c) d' autre part.(3b, 3c) on the other hand.
13-Utilisation d'un joint de détection selon l'une quelconque des revendications 1 à 10 pour détecter le pincement d'un corps situé sur la trajectoire de fermeture d'un ouvrant motorisé de véhicule, dans laquelle les différentes zones conductrices (3) du joint sont branchées en série ou en parallèle avec des résistances de terminaison et avec un dispositif de contrôle de résistance électrique de manière que le contact entre deux zones conductrices quelconque du joint se traduise par un abaissement de la résistance électrique contrôlée d' au moins une valeur seuil, un calculateur commandant alors au moteur actionnant l' ouvrant une séquence de décoincement. 13-Use of a detection joint according to any one of claims 1 to 10 to detect the pinching of a body located on the closing trajectory of a motorized vehicle opening, in which the different conductive zones (3) of the joint are connected in series or in parallel with terminating resistors and with an electrical resistance control device so that contact between any two conductive zones of the joint results in a lowering of the controlled electrical resistance by at least one threshold value, a computer then commands a release sequence to the motor operating the opening.
EP07731512A 2006-01-24 2007-01-24 Trapping detection seal for opening leaves of vehicles Withdrawn EP1977067A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0600637A FR2896528B1 (en) 2006-01-24 2006-01-24 PINCH DETECTION SEAL FOR VEHICLE OPENING
PCT/FR2007/050684 WO2007085762A2 (en) 2006-01-24 2007-01-24 Trapping detection seal for opening leaves of vehicles

Publications (1)

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EP1977067A2 true EP1977067A2 (en) 2008-10-08

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EP07731512A Withdrawn EP1977067A2 (en) 2006-01-24 2007-01-24 Trapping detection seal for opening leaves of vehicles

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US (1) US20090218846A1 (en)
EP (1) EP1977067A2 (en)
JP (1) JP2009524549A (en)
FR (1) FR2896528B1 (en)
WO (1) WO2007085762A2 (en)

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US10678382B2 (en) 2014-04-22 2020-06-09 Avery Dennison Retail Information Services, Llc Methods and systems for monitoring medication compliance
US10762753B2 (en) * 2014-12-12 2020-09-01 Avery Dennison Retail Information Services, Llc Methods and systems for determining the time at which a seal was broken
US10913594B2 (en) 2015-07-07 2021-02-09 Avery Dennison Retail Information Services, Llc Smart ejection trays for use with medication containers
US10896301B2 (en) 2015-07-07 2021-01-19 Avery Dennison Retail Information Services, Llc RFID-based methods and systems for monitoring medication compliance
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Also Published As

Publication number Publication date
US20090218846A1 (en) 2009-09-03
FR2896528A1 (en) 2007-07-27
FR2896528B1 (en) 2010-09-17
WO2007085762A2 (en) 2007-08-02
JP2009524549A (en) 2009-07-02
WO2007085762A3 (en) 2007-09-27

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