EP0026719B1 - Elektrische Abstellvorrichtung für den Antriebsmechanismus eines Fensterflügels - Google Patents

Elektrische Abstellvorrichtung für den Antriebsmechanismus eines Fensterflügels Download PDF

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Publication number
EP0026719B1
EP0026719B1 EP80401393A EP80401393A EP0026719B1 EP 0026719 B1 EP0026719 B1 EP 0026719B1 EP 80401393 A EP80401393 A EP 80401393A EP 80401393 A EP80401393 A EP 80401393A EP 0026719 B1 EP0026719 B1 EP 0026719B1
Authority
EP
European Patent Office
Prior art keywords
circuit
detector
oscillator
switch
motor
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.)
Expired
Application number
EP80401393A
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English (en)
French (fr)
Other versions
EP0026719A1 (de
Inventor
Willy Felbinger
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.)
Saint Gobain Glass France SAS
Saint Gobain Vitrage SA
Original Assignee
Saint Gobain Vitrage SA
Saint Gobain Vitrage International SA
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 Saint Gobain Vitrage SA, Saint Gobain Vitrage International SA filed Critical Saint Gobain Vitrage SA
Publication of EP0026719A1 publication Critical patent/EP0026719A1/de
Application granted granted Critical
Publication of EP0026719B1 publication Critical patent/EP0026719B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • E05F15/46—Detection using safety edges responsive to changes in electrical capacitance
    • 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
    • E05Y2900/55—Windows

Definitions

  • the subject of the invention is a device for stopping a mechanism driving a member such as a door leaf, window or sliding roof and in particular a device intended to make it possible to shut down the motors which drive the windows of a motor vehicle.
  • patent publication DE-B-12 10690 describes a device for switching off the drive motor of a window sash: in the event of an overload, a safety relay establishes a connection between the power supplies of the power controlling both directions of rotation of the motor, so as to energize the two relays to stop this motor regardless of the position of the contacts of its manual control.
  • This device eliminates the need for limit switches; on the other hand, it must also stop the engine when the user, by carelessness, leaves his hand on the edge of the glazing.
  • the criterion used to stop the motor is the increase in torque which occurs in the event of an overload and leads to an increase in the current draw of the motor. It therefore stops only when it supports excessive effort, which creates a significant risk of injury to the part of the body that is caught.
  • Patent publication DE-B-1530992 describes an electrical solution: in this case a third brush lowers the torque characteristic of the motor as a function of the speed when the movement takes place in the closing direction of the leaf.
  • the friction clutch can be locked by a dog clutch engaged by means of an additional hand switch.
  • the dog clutching takes place automatically when operating in the direction of the opening of the window.
  • patent publication DE-B-21 63 746 indicates that the possible use of a pair of strips closing a contact when acting on them is not without drawbacks because such strips can be deformed under the effect of an effort which compromises their proper functioning, and to avoid them, it provides inside the rubber seals a cable which makes it possible to act on a contactor, relatively expensive and fragile device which cannot find its place on the genus of a motor vehicle.
  • Patent publication DE-A-1 5 80 284 also envisages fitting light barriers to the doors of vehicles with automatic closing, but it should be noted that the operating requirements of such doors differ significantly from those of sliding windows of the doors. vehicles.
  • the edge of the leaf at least on the part which, in the open position appears bare inside the frame, is provided with a detector formed of an electrical conductor wire connected to a circuit electronic servo placed downstream of a manual control reversing contactor and which, when closing, in turn reverses the power supply to the motor as soon as a conductive foreign body comes into contact with it or approaches it sufficiently to modify his capacity.
  • the detector is inserted at the output of an oscillator stage preceding a detection stage and an all or nothing control stage.
  • the detector dampens the oscillations of the oscillator.
  • the detection stage detects the attenuation of the signal and reverses a contact via the all or nothing control stage.
  • this solution has a serious defect if the sensitivity of the device is sufficient to cause the operation not only when the body comes into direct contact with the contactor but also, for example, when a piece of clothing is interposed so that the triggering of the safety is due only to the capacitive action. Indeed, at the moment when the edge of the vitrate approaches the closing zone, the presence of the metal frame of the bodywork or the window frame is detected a little before the complete closing has cut off the power to the motor and it triggers the reopening. As a result, if the sensitivity is high, the circuit does not allow the window to be closed.
  • US-A-3,624,473 describes an electrical device which controls the drive mechanism of a leaf which does not include a conductive strip capable of serving as a detector.
  • a safety circuit breaker 38 which makes it possible to neutralize the circuit 32 at the precise moment of the encounter and maintains the power supply to the motor.
  • the motor then blocks under the effect of the pressure exerted by the leaf on the frame, which ensures a hermetic closure.
  • This document discloses a solution to a very specific problem: that posed by the closing of a leaf which does not include a detector such as a conductive strip disposed on / or near its upper edge; it does not in any way evoke the problems which arise in the case of other devices provided with leaves.
  • the object of the invention is to remedy the various drawbacks presented by the devices of the prior art previously analyzed during the closing and / or opening of a leaf.
  • the circuit according to the invention it becomes possible, by a new closing order using the contactor, to complete the closing of the window if the detector placed on the edge of the glass prematurely cut off the supply of the engine when this edge approached the metal frame, or even, thanks to an approach signal, to cause the automatic crossing of the incomplete closed position in question.
  • the opening of the window is made possible by the fact that the detection is neutralized at least at the start of the race, when the position of the manual control switch is reversed.
  • the auxiliary circuit which according to the invention is a tilting circuit, passes from its first state to the second for a short time when its input is energized, then neutralizing the detection stage of the main circuit; this short duration may be, for example, of the order of 0.5 seconds.
  • this tilting circuit will be subordinated to an approach contact which will put it out of service in the intermediate positions of the leaf, thus restoring the immediate functioning of the safety.
  • the servo circuit. is supplied symmetrically, thus operating on opening and closing subject to its neutralization in extreme areas.
  • the invention which is of particular interest when leaves are used without framing and in particular on light windows such as windows of motor vehicles, can however be applied to the fencing of bays such as doors, windows or roofs with one or more sliding leaves and, under the same conditions, ensures the safety of devices with manual control or with automatic closure such as elevator doors.
  • a motor vehicle door 1 comprises a window frame 2 mounted on a box 3, inside of which there are slides, not shown, which carry the window 4.
  • the box 3 contains a motor 5 connected to the lower edge of the latter by means of a connecting rod not shown.
  • the edge 6 likely to come bare inside the frame in some position of the glass is coated with a detector 7 formed of an electrical conductor.
  • this detector extends at least from location 8 to location 9; in fact, here, it covers the edge of the glass over the entire distance between location 8 and location 10.
  • Location 8 is external to the guide post so that there is no contact between it and the detector 7. If the latter extends to the location of one of the slides supporting the glass 4, it is necessary to isolate this slide. Finally, where the window 4 enters the box 3 there are rubber sealing profiles; these are not in contact with the detector 7 which is only deposited on the edge of the glass.
  • the detector 7 On the lower edge 11 of the window 4 the detector 7 is connected to the central conductor, or core 12, of a coaxial cable 13 whose sheath 14 is not connected at this location.
  • the coaxial cable 13 is connected to a servo circuit 15 inserted in the motor supply circuit 5.
  • the circuit 15 is represented by blocks in FIG. 2. It has an oscillator stage 16 to which the outputs of the detector 7 or, if preferred, coaxial cable 13, are connected, and a detection stage 17.
  • the oscillator 16 supplies the detector 7 with a frequency of the order of MHz, for example with 200 kHz.
  • the detector 7 thus works as an antenna and the oscillator 16 is mounted in such a way that when a foreign body comes into contact with it, the amplitude of the transmitted signal is attenuated.
  • the attenuation occurs not only when the body in question is really conductive but also when its conductivity, fairly reduced in itself, however constitutes a mass of sufficient capacity to dampen the oscillations of the circuit.
  • the attenuation of the oscillator signal is provided by the detection stage 17 which then supplies an all-or-nothing signal to a control stage 18, which in this case cuts the power supply to the motor 5.
  • the oscillator 16 consists of two inverters J1, J2 connected in series, the output of the inverter J2 being looped over the input of the inverter J1 through d 'a capacitor C1.
  • a resistor R1 is inserted between the input of the inverter J2, that is to say the output of the inverter J1 and the capacitor C1. Resistor R1 and capacitor C1 determine the frequency of oscillation.
  • the output of the oscillator 16 is connected on the one hand to the core 12 of the coaxial cable, therefore to the detector 7 by the coupling capacitor C2, on the other hand to an impedance adapter OP by the coupling capacitor C3.
  • a voltage divider made up of resistors R2 and R3 determines the working point of the amplifier OP; the latter is coupled to a frequency compensator circuit which includes in series the resistor R4 and the capacitor C4.
  • the output of the amplifier OP is connected by a coupling capacitor C5 to the sheath 14 of the coaxial cable 13 so that the two conductors 12 and 14 are traversed in phase by two signals of the same frequency.
  • the capacity of the coaxial cable 13 is thus compensated because there is never at any point of the latter a potential difference between its core 12 and its sheath 14, which makes it possible to adapt the cable length to the other drawing as a precaution. from door 1.
  • connection cable moves in the box 3, which would have a very difficult influence on signal damping if it were not for not a coaxial cable.
  • the output of the oscillator connected to the core 12 therefore to the detector 7 is of high impedance; towards the sheath 14 due to the presence of the amplifier OP, it is on the contrary of low impedance. As a result, the detector 7 is sensitive to damping.
  • the core 12 and with it the output of the oscillator 16 are connected by a coupling capacitor C6 to the detection stage 17, formed of two inverters J3 and J4, of which a resistor R5 fixes the working point. Between the two inverters J3 and J4 is a rectifier diode D1. In addition, the input of the inverter J4 has a resistor R6 and a capacitor C7 in bypass.
  • This signal rectified by the diode D1, lowers the charge of the capacitor C7 charged beforehand via the resistor R6, so that it is also created at the input from the inverter J4 a logic signal 0 therefore at its output a logic signal 1.
  • the inverting stages J1 to J4 can belong to a single integrated circuit such as the IC HCF 4069 circuit from Signetics.
  • CMOS complementary metal-oxide-semiconductor
  • a charge adapter stage 19 is provided, consisting for example of an integrated circuit in TTL technique. It includes two inverters J5 and J6 which may belong to a commercial integrated circuit of the SN 75491 type.
  • Resistors R7 and R8 regulate the working points of the reversers J5 and J6.
  • the output of the inverter J6 is connected by a resistor R9 to the base of a Darlington amplifier formed by two transistors T1 and T2.
  • the damping circuit described is connected by a blocking diode D3 to the pole 20 of the vehicle supply network and by a diode D4 to the pole 21 of this network.
  • Relay contact K connects pole 20 to terminal 22 of motor 5.
  • the transistors T1 and T2 are made conductive by the logic signal 1 which comes out of the power amplifier 19 so that the relay contact K, open by winding W, cut the motor 5.
  • a filter capacitor C8 is placed between the diodes D3 and D4 to eliminate the parasitic voltages.
  • the servo circuit cannot itself generate parasites around the detector 7 because the emission voltage of the antenna formed by the latter is much lower than the disturbing voltages generated by the engine of the vehicle in which the device is incorporated and the latter is only in service when the engine ignition switch is turned on.
  • FIG. 4 represents the electrical connection of the motor 5 via the servo circuit 15 and of a window control switch 23 of the current type equipped with a control button 24 connected to the positive pole 25 and to the negative pole 26 of the on-board network.
  • the contactor 23 has two change-over contacts 23 'and 23 ". In the position shown in FIG. 4, these two contacts are placed so that the motor 5 raises the window 4.
  • the contact K opens so that the motor 5 stops and the closing or opening of the window is interrupted; as a final limit, the contact K opens when, with the window 4 reaching the end-of-travel position, the detector is influenced by the frame 2.
  • the existence of the diode D4 the conductivity threshold of which is of the order of 0.7 V, means that the potential present at the pole-of the servo circuit 15 while in service is brought to around 0.7 V.
  • this driver's bridge does not permanently cut off power to motor 5.
  • FIG. 3 finally shows the auxiliary circuit A according to the invention and which makes it possible to avoid this drawback.
  • the auxiliary circuit which is practically in parallel with the filtering capacitor C8, is shown in FIG. 5. It is a tilting circuit controlled by a monostable rocker KS, for example in the form of an integrated circuit NE555, sold as the integrated circuit SN 75 491 by the firm Texas Instruments.
  • KS monostable rocker
  • the control input of the flip-flop KS is mounted in bypass on a resistor R10 and a capacitor C9 connected to the input terminal 27. As soon as the voltage appears on the auxiliary circuit A, a voltage is established in the branch C9 -R10. A start pulse is thus transmitted to the KS flip-flop when the control switch 23 closes.
  • This starting pulse switches the output of the flip-flop KS, to which is connected, by means of a resistor R15, the base of a transistor T3 which is thus made conductive.
  • the transistor T3 is connected via a resistor R16 to the input resistor R9 of the base of the transistor T1.
  • the Darlington amplifier consisting of transistors T1 and T2 is therefore blocked independently of whether the detector 7 dampens the oscillations of oscillator 16 or not, so that winding W cannot open contact K.
  • the duration during which the flip-flop KS makes the transistor T3 conductive and therefore neutralizes the detector 7 is fixed by the connection of this switches to the circuit consisting of the capacitor C10 and the resistor R13. These last two members are dimensioned so that the blocking time is of the order of 0.5 s for example. Resistors R12 and R14 provide the necessary initial supply voltage.
  • the time during which the KS flip-flop keeps the Darlington amplifier blocked, 0.5 s for example, is fixed so as to allow the window pane 4 to suddenly reach its fully closed position.
  • the device operates symmetrically and has, at the location that the detector 7 reaches at the end of opening of the window 4, a contact 30 such as a grounded blade, which the detector then comes to touch as shown Figure 6, in which the window 4 is shown in this position.
  • the diodes D5 and D6 are blocked and the operation of the circuit is identical to that which has been described above.
  • the diodes D3 and D4 are blocked as before but the diodes D5 and D6 are made conductive and supply power normally the circuit, as a result of which the contact of the detector with a foreign body interrupts the movement of the window both during opening and closing.
  • the presence of the lever does not only allow the window to be brought into the fully closed position either by manual action in the closing direction on the control button 24, or automatically as described above. It ensures in both directions, both during opening and closing, the crossing of the imperfect closing zone and, if desired, plays a similar role at the end of opening thanks to a symmetrical action on the contact 29.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Window Of Vehicle (AREA)
  • Safety Devices In Control Systems (AREA)

Claims (10)

1. Elektrische Steuerungsvorrichtung für eine Antriebseinrichtung eines Fenster- oder Türflügels bzw. -scheibe, gesteuert durch einen Umkehrschütz (23) mit Hilfe eines Detektors (7), der gebildet ist durch einen Leiter, der auf dem Rand (6) des Flügels (4) angeordnet und an den Ausgang eines Oszillators (16) geschaltet ist, der das Anfangsglied eines Steuerschaltkreises (15) bildet, der ferner eine Gleichrichterstufe (17) und eine Steuerstufe (18) mit Ja-Nein-Aussage aufweist, die auf einen Kontakt (K) an der Stromversorgung für den Motor (5) einwirkt, wobei die Dämpfung des Oszillators die Öffnung des die Motorspeisung steuernden Kontakts hervorruft, dadurch gekennzeichnet, daß die Vorrichtung einen Hilfsstromkreis (A) umfaßt, der gebildet ist durch eine Kippschaltung, die unter Spannung gesetzt wird, wenn der Flügel bzw. Scheibe sich am Anfang und am Ende der Öffnungs- und Schließbewegung befinden, wobei die Schaltung dann zeitweilig den Detektor (7) neutralisiert und es dem Flügel ermöglicht seine Aufwärts- oder Abwärtsbewegung zu folgen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Hilfsstromkreis (A) eine monostabile Kippschaltung (KS) umfaßt, die mit der Steuerstufe (18) durch einen Transistor (T3) mit Ja-Nein-Aussage verbunden ist.
3. Vorrichtung nach Anspruch 1 oder 2, dadurchgekennzeichnet, daß die Kippschaltung einem Annäherungskontakt untergeordnet ist, der durch die Scheibe gesteuert ist und der diesen in den Zwischenstellungen der Scheibe außer Betrieb setzt.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Hilfsstromkreis (A) durch seine Nullklemme (28) mit dem Annäherungskontakt (29) verbunden ist, welcher sich schließt, um diesen zu blockieren, sobald der Flügel bzw. die Scheibe sich außerhalb ihrer Extremstellungen befindet.
5. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Hilfsstromkreis (A) durch seinen Haupteingang (27) mit dem Annäherungskontakt verbunden ist, welcher sich zur Speisung schließt, sobald der Flügel bzw. die Scheibe sich ihren äußersten Endlagen nähert.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß an der Stromversorgung der Steuerschaltung (15) mindestens eine Diode (D4) vorhanden ist, deren Leitfähigkeitsschwellwert ihr minimales Potential bezüglich demjenigen der Masse des Leitungsnetzes des Fahrzeugbords verstellt.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Steuerschaltung (15) stromabwärts des Umkehrschützes (23) durch Zwischenschaltung eines Gleichrichters (D3, D4, D5, D6) angeordnet ist.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Detektor (7) sich über die Länge des unteren Randes der Scheibe (4) erstreckt, um in Öffnungsstellung auf einen Kontakt (30) zu treffen.
9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Detektor (7) am unteren Teil (9-10) des Randes des Flügels bzw. der Scheibe (4) mit dem Kern (12) eines Koaxialkabels (13) verbunden ist, dessen Hülle (14), die gleichfalls am Ausgang der Oszillators angeschlossen ist, in der Nähe des Anschlußpunktes weggelassen ist.
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Hülle (14) des Koaxialkabels mit dem Ausgang des Oszillators durch einem Impedanzadapter verbunden ist.
EP80401393A 1979-10-02 1980-10-02 Elektrische Abstellvorrichtung für den Antriebsmechanismus eines Fensterflügels Expired EP0026719B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2939942 1979-10-02
DE2939942A DE2939942C2 (de) 1979-10-02 1979-10-02 Elektrische Abschalteinrichtung, insbesondere für einen Fensterhebermotor eines Kraftfahrzeuges

Publications (2)

Publication Number Publication Date
EP0026719A1 EP0026719A1 (de) 1981-04-08
EP0026719B1 true EP0026719B1 (de) 1984-06-06

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Application Number Title Priority Date Filing Date
EP80401393A Expired EP0026719B1 (de) 1979-10-02 1980-10-02 Elektrische Abstellvorrichtung für den Antriebsmechanismus eines Fensterflügels

Country Status (9)

Country Link
US (1) US4351016A (de)
EP (1) EP0026719B1 (de)
JP (1) JPS56108481A (de)
BR (1) BR8006348A (de)
CA (1) CA1169949A (de)
DE (1) DE2939942C2 (de)
ES (1) ES8105903A1 (de)
PT (1) PT71858B (de)
YU (1) YU250180A (de)

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Also Published As

Publication number Publication date
US4351016A (en) 1982-09-21
EP0026719A1 (de) 1981-04-08
JPS56108481A (en) 1981-08-28
ES495585A0 (es) 1981-06-16
CA1169949A (fr) 1984-06-26
ES8105903A1 (es) 1981-06-16
DE2939942A1 (de) 1981-04-09
PT71858A (fr) 1980-10-01
PT71858B (fr) 1981-06-29
YU250180A (en) 1982-08-31
BR8006348A (pt) 1981-04-14
DE2939942C2 (de) 1986-01-09

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