EP0248940A1 - Relais de déclenchement d'un tendeur de ceinture de sécurité pour véhicule - Google Patents

Relais de déclenchement d'un tendeur de ceinture de sécurité pour véhicule Download PDF

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Publication number
EP0248940A1
EP0248940A1 EP86112896A EP86112896A EP0248940A1 EP 0248940 A1 EP0248940 A1 EP 0248940A1 EP 86112896 A EP86112896 A EP 86112896A EP 86112896 A EP86112896 A EP 86112896A EP 0248940 A1 EP0248940 A1 EP 0248940A1
Authority
EP
European Patent Office
Prior art keywords
contact arrangement
magnet system
longitudinal axis
recess
annular magnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86112896A
Other languages
German (de)
English (en)
Other versions
EP0248940B1 (fr
Inventor
Gunter A. Dipl.-Ing. Seeger
Arno Reger
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.)
Hengstler GmbH
Original Assignee
Hengstler Bauelemente GmbH
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 Hengstler Bauelemente GmbH filed Critical Hengstler Bauelemente GmbH
Publication of EP0248940A1 publication Critical patent/EP0248940A1/fr
Application granted granted Critical
Publication of EP0248940B1 publication Critical patent/EP0248940B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/147—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch the switch being of the reed switch type

Definitions

  • the invention relates to a relay for actuating a belt tensioner or belt tensioner on motor vehicle safety belts when colliding with an obstacle.
  • a relay arrangement which provides a protective tube or reed contact arrangement known per se for the switching operation to be triggered in the event of a motor vehicle crash, a permanent magnet designed as a ring being held around the protective tube in a spring-loaded manner against a stop of the housing of such a reed relay .
  • this permanent magnet is thrown forward against the force of this spring along the longitudinal axis of the contact spring arrangement and thus triggers the switching process for actuating the belt tensioner.
  • Such a relay is consequently to be installed in the vehicle in such a way that the protective tube or reed contact arrangement is aligned longitudinally in the longitudinal axis of the vehicle in order to directly effect a switching process in the event of an impact.
  • a second relay of this embodiment which is spring-loaded in reverse would have to be provided. Two such relays can thus trigger the switching operation when colliding with an obstacle or with another vehicle moving up from behind if these impacts occur in or approximately in the direction of the vehicle's longitudinal axis.
  • the present invention is therefore based on the object of designing a relay for actuating a belt tensioner or belt tensioner for motor vehicle safety belts in such a way that when driving onto an obstacle, and also when a motor vehicle is approaching from behind, a single relay makes the necessary and immediate switching operation is triggered.
  • the present invention is based on a further object, namely to design such a relay so that even the shocks that do not occur in or approximately in the direction of the longitudinal axis of the vehicle are detected in a single relay for triggering the switching process, that is to say, for example, when the motor vehicle is thrown against a side obstacle or the shocks caused by another vehicle moving sideways.
  • such a relay is characterized as a solution in that the protective ear or reed contact arrangement in a housing with its longitudinal axis perpendicular to the direction of travel of the vehicle and vertical to the horizontal plane of the Vehicle aligned are arranged, and that the annular magnet system encompassing the contact arrangement perpendicular to the longitudinal axis of the protective tube enclosing the contact arrangement is held essentially horizontally movable via springs equidistant from the contact arrangement in its rest position.
  • the ring-shaped magnet system is guided in a radially enlarged recess of the relay housing and is supported radially around the circumference by springs against the wall of the recess of the housing or on the inside of the ring via springs radially against the protective tube of the contact arrangement and is held equidistant from the contact arrangement in its rest position.
  • the relay housing has a cylindrical recess which runs coaxially with the longitudinal axis of the contact arrangement, and that the annular magnet system is anchored horizontally movably on both end faces of the cylindrical recess under spring tension via spring pairs which are aligned essentially axially parallel to the longitudinal axis of the contact arrangement and is held equidistant from the contact arrangement in its rest position.
  • the ring-shaped magnet system at the upper edge has a downward outer diameter is conically tapered and crowned at the tapered end bearing bowl, which rests on an end face of the cylindrical recess, in the plane of the annular magnet system around the circumference via springs against the wall of the recess of the housing or on the inside of the ring via springs radially against the protective tube of the contact arrangement is supported and held equidistant from the contact arrangement in its rest position.
  • the annular magnet system is arranged on the large diameter of a conical spring which is aligned coaxially with the contact arrangement, with its small diameter encompassing a protective tube end of the contact arrangement or a corresponding bearing journal, on an end face of the recess in the housing supports, for the low-friction guidance of the ring-shaped magnet system in a spring transverse to the longitudinal axis of the spring along the other end face of the receptacle of the housing and the magnet system is designed to be equidistant from the contact arrangement in its rest position.
  • the ring-shaped magnet system consisting of a ring magnet consisting of permanent magnetic material or of several, preferably four, permanent magnets arranged in an equidistant arrangement between two magnet yokes forming iron rings.
  • the ring-shaped magnet system can also consist of a ring molded from plastic, wherein individual permanent magnets can be molded into this ring, or the ring from one Plastic material is made, which is enriched with powdered permanent magnetic material.
  • the bearing bowl used in one embodiment for supporting the ring-shaped magnet system can also be formed from a plastic enriched with pulverized permanent magnet material, or have a corresponding number of permanent magnets molded in the same spacing on the upper edge as a ring-shaped magnet system.
  • the bearing bowl can, for example, be supported directly on one end face of the recess in the relay housing or by means of a centrally guiding element and can execute the corresponding wobbling movement.
  • FIG. 1 schematically shows a relay according to the invention, which consists of a housing 2 with a protective tube or reed contact 1 fixed therein and an annular magnet system 4.
  • the magnet system 4 consisting of a permanent magnetic ring, has a substantially larger inside diameter than the diameter of the protective tube or reed contact 1 and is mounted and guided horizontally movably in a horizontal recess 6.
  • the magnetic ring of the magnet system 4 is supported radially by springs 5 on the wall of the recess 6.
  • the springs 5 are arranged evenly distributed around the circumference of the magnetic ring, as can be seen from FIG. 2.
  • FIG. 3 shows a top view of an embodiment similar to FIG. 1 with an annular magnet system 4 supported on the inside of the ring by springs 5 on the protective tube of the contact arrangement 1, which is also guided in a horizontal recess 6 of the relay housing 2.
  • FIG. 3 shows an embodiment which shows the magnet system 4 in a cylindrical recess 6 in the housing 2 which runs coaxially with the longitudinal axis of the contact arrangement 1, the annular magnet system 4 moving horizontally via spring pairs 5 which are aligned essentially axially parallel to the longitudinal axis of the contact arrangement 1 two end faces 7 of the cylindrical recess 6 is anchored under spring tension.
  • FIG. 5 shows in section a further embodiment with an annular magnet system 4 arranged on the upper edge of a storage bowl 8.
  • the storage bowl 8 is also cylindrical in a coaxial manner with the longitudinal axis of the contact arrangement extending recess 6 of the housing 2 is arranged.
  • the bearing bowl 8 tapers downward from the annular magnet system 4, which forms the largest outer diameter, and is spherical at the tapered end. The tapered end can rest directly on the end face 7 of the cylindrical recess or be guided in the tumbling movement by a centering element.
  • the bearing bowl 8 is supported on the outer wall of the housing 6 by means of springs 5.
  • the bearing bowl 8 can also be supported on the inside of the ring via springs 5 on the protective tube of the contact system 1.
  • FIG. 6 shows a top view of an annular magnet system 4, which can consist, for example, of a ring made of plastic, in which individual permanent magnets 11, preferably four, are molded.
  • Such a ring for the magnet system 4 can also consist of two iron rings 12, to which individual permanent magnets 11 are interposed spaced around the circumference, as can be seen, for example, from FIG.
  • FIGS. 6 and 7 The embodiments of the ring-shaped magnet system 4 shown in FIGS. 6 and 7 and described for this can of course be used for all embodiments of the relay, including those with a storage bowl 8 (FIG. 7).
  • FIG. 8 shows another embodiment in which the ring-shaped magnet system 4 is arranged on the large diameter of a conical spring 9, which is coaxial with the contact arrangement 1 aligned, with its small diameter encompassing a protective tube end of the contact arrangement 1 or a corresponding bearing pin 10, is supported on an end face 7 of the recess 6 of the housing 2, the recess 6 also here running coaxially with the longitudinal axis of the contact arrangement 1.
  • the housing 2 of the relay according to the invention preferably consists of a plastic material which has smooth surfaces, so that when the magnet system 4 is guided or attached to the housing, in some embodiments the magnet system 4 can be moved freely to make contact.
  • the connections 3 of the contact system 1 are led out of the housing 2 in a suitable manner and provided with corresponding connection lugs (not shown).
EP86112896A 1986-06-10 1986-09-18 Relais de déclenchement d'un tendeur de ceinture de sécurité pour véhicule Expired - Lifetime EP0248940B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863619474 DE3619474A1 (de) 1986-06-10 1986-06-10 Relais zur betaetigung eines gurtstraffers an kraftfahrzeug-sicherheitshaltegurten
DE3619474 1986-06-10

Publications (2)

Publication Number Publication Date
EP0248940A1 true EP0248940A1 (fr) 1987-12-16
EP0248940B1 EP0248940B1 (fr) 1990-10-03

Family

ID=6302680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112896A Expired - Lifetime EP0248940B1 (fr) 1986-06-10 1986-09-18 Relais de déclenchement d'un tendeur de ceinture de sécurité pour véhicule

Country Status (6)

Country Link
US (1) US4705922A (fr)
EP (1) EP0248940B1 (fr)
JP (2) JPS62292552A (fr)
KR (1) KR900001153B1 (fr)
DE (2) DE3619474A1 (fr)
ES (1) ES2002829A6 (fr)

Families Citing this family (32)

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Publication number Priority date Publication date Assignee Title
US4820888A (en) * 1988-05-16 1989-04-11 Shields Larry E Tilt switch replacing mercury switches
DE3830782C1 (fr) * 1988-09-09 1990-06-07 Audi Ag, 8070 Ingolstadt, De
US4943690A (en) * 1989-03-06 1990-07-24 Fifth Dimension, Inc. Position insensitive shock sensor with closure delay
US4980526A (en) * 1989-04-06 1990-12-25 Hamlin Incorporated Device and method for testing acceleration shock sensors
US4877927A (en) * 1989-04-06 1989-10-31 Hamlin Incorporated Extended dwell shock sensing device
DE4032717A1 (de) * 1989-12-13 1991-06-27 Roger Schult Bewegungsgroessensensor mit detektoreinrichtung fuer magnetische felder
DE4002845C1 (en) * 1990-02-01 1991-06-13 Morgenstern, Bodo, Prof. Dr.-Ing., 2000 Hamburg, De Electromechanical deceleration sensor operated magnetically - has permanent magnet system mounted on leaf spring esp. for safety retention appts. in motor vehicle
US5212357A (en) * 1991-08-14 1993-05-18 Hamlin, Inc. Extended minimum dwell shock sensor
US5194706A (en) * 1991-08-14 1993-03-16 Hamlin, Inc. Shock sensor with a magnetically operated reed switch
EP0545393B1 (fr) * 1991-12-02 1997-03-12 Tokin Corporation Détecteur d'impact
GB2263580B (en) * 1992-01-17 1996-02-14 Hamlin Electronics Europ Ltd A switch assembly
US5256839A (en) * 1992-03-05 1993-10-26 Shawn Gallagher Tilt switch responsive to acceleration or deceleration
WO1993026026A1 (fr) * 1992-06-12 1993-12-23 Oki Electric Industry Co., Ltd. Capteur de chocs
DE4400206A1 (de) * 1993-01-08 1994-07-28 Nippon Aleph Stoßfeststellungseinrichtung
US5378865A (en) * 1993-09-20 1995-01-03 Hamlin, Inc. Multi-directional shock sensor
US5416293A (en) * 1994-08-17 1995-05-16 Hamlin, Inc. Shock sensor including a compound housing and magnetically operated reed switch
US5710705A (en) * 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh Method for determining an additional yawing moment based on side slip angle velocity
US5732377A (en) * 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Process for controlling driving stability with a yaw rate sensor equipped with two lateral acceleration meters
US5732379A (en) * 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Brake system for a motor vehicle with yaw moment control
US5742507A (en) * 1994-11-25 1998-04-21 Itt Automotive Europe Gmbh Driving stability control circuit with speed-dependent change of the vehicle model
US5694321A (en) * 1994-11-25 1997-12-02 Itt Automotive Europe Gmbh System for integrated driving stability control
US5732378A (en) * 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Method for determining a wheel brake pressure
US5711024A (en) * 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh System for controlling yaw moment based on an estimated coefficient of friction
US5774821A (en) * 1994-11-25 1998-06-30 Itt Automotive Europe Gmbh System for driving stability control
DE19515053A1 (de) * 1994-11-25 1996-05-30 Teves Gmbh Alfred Verfahren zur Regelung der Fahrstabilität mit der Schräglaufdifferenz als Regelungsgröße
US5710704A (en) * 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh System for driving stability control during travel through a curve
US5701248A (en) * 1994-11-25 1997-12-23 Itt Automotive Europe Gmbh Process for controlling the driving stability with the king pin inclination difference as the controlled variable
US5839790A (en) * 1995-06-06 1998-11-24 Takata Inc. Remote mechanical sensor and seat belt retractor operated thereby
US5770792A (en) * 1995-10-27 1998-06-23 Nippon Aleph Corporation Shock sensors
US6002091A (en) * 1998-11-18 1999-12-14 Breed Automotive Technology, Inc. Bi-directional shock sensor employing reed switch
GB2351609B (en) * 1999-06-29 2001-10-17 Breed Automotive Tech Bidirectional shock sensor
US10591044B2 (en) * 2016-11-01 2020-03-17 Thermo King Corporation Systems and methods for monitoring belt tension and determining belt lifespan in a transport refrigeration unit

Citations (7)

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Publication number Priority date Publication date Assignee Title
DE1942176A1 (de) * 1968-08-20 1970-02-26 Eaton Yale & Towne Kollisionssensor
DE2001756B1 (de) * 1970-01-16 1971-04-22 Brehm Hans Heinrich Elektrischer Traegheitsschalter
US3795780A (en) * 1972-08-11 1974-03-05 Garrett Corp Acceleration sensor with magnetic operated, oscillating reed switch
FR2366683A1 (fr) * 1976-10-02 1978-04-28 Daimler Benz Ag Capteur electrique a commande magnetique
DE3204232A1 (de) * 1982-02-08 1983-08-18 Hans von 2358 Kaltenkirchen Döhren Schockschalter
DE3216321C1 (de) * 1982-05-03 1983-09-29 Daimler-Benz Ag, 7000 Stuttgart Magnetisch betaetigter elektrischer Schalter
DE3338287C1 (de) * 1983-10-21 1985-05-02 W. Günther GmbH, 8500 Nürnberg Beschleunigungs- und Verzoegerungs-Sensor

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US3097272A (en) * 1962-05-08 1963-07-09 Rudolph F Hautly Inertia switch
DE2206985A1 (de) * 1972-02-15 1973-08-23 Bbc Brown Boveri & Cie Elektrischer sicherheitsschalter
JPS5255503Y2 (fr) * 1973-05-28 1977-12-15
US4081635A (en) * 1976-03-19 1978-03-28 Delaval Turbine Inc. Electrical switch responsive to a predetermined fluid flow
JPS5858745B2 (ja) * 1977-08-15 1983-12-27 株式会社東芝 電子カウンタ−付磁気録音再生装置
US4596971A (en) * 1984-07-26 1986-06-24 Tdk Corporation Magnetic circuit device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1942176A1 (de) * 1968-08-20 1970-02-26 Eaton Yale & Towne Kollisionssensor
DE2001756B1 (de) * 1970-01-16 1971-04-22 Brehm Hans Heinrich Elektrischer Traegheitsschalter
US3795780A (en) * 1972-08-11 1974-03-05 Garrett Corp Acceleration sensor with magnetic operated, oscillating reed switch
FR2366683A1 (fr) * 1976-10-02 1978-04-28 Daimler Benz Ag Capteur electrique a commande magnetique
DE3204232A1 (de) * 1982-02-08 1983-08-18 Hans von 2358 Kaltenkirchen Döhren Schockschalter
DE3216321C1 (de) * 1982-05-03 1983-09-29 Daimler-Benz Ag, 7000 Stuttgart Magnetisch betaetigter elektrischer Schalter
DE3338287C1 (de) * 1983-10-21 1985-05-02 W. Günther GmbH, 8500 Nürnberg Beschleunigungs- und Verzoegerungs-Sensor

Also Published As

Publication number Publication date
JPS62292552A (ja) 1987-12-19
ES2002829A6 (es) 1988-10-01
US4705922A (en) 1987-11-10
KR900001153B1 (ko) 1990-02-27
KR880001006A (ko) 1988-03-30
DE3674791D1 (de) 1990-11-08
EP0248940B1 (fr) 1990-10-03
DE3619474C2 (fr) 1988-03-17
JPH0499163U (fr) 1992-08-27
DE3619474A1 (de) 1987-12-17

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