EP0248940B1 - Relais zur Betätigung eines Gurtstraffers an Kraftfahrzeug-Sicherheitshaltegurten - Google Patents

Relais zur Betätigung eines Gurtstraffers an Kraftfahrzeug-Sicherheitshaltegurten Download PDF

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Publication number
EP0248940B1
EP0248940B1 EP86112896A EP86112896A EP0248940B1 EP 0248940 B1 EP0248940 B1 EP 0248940B1 EP 86112896 A EP86112896 A EP 86112896A EP 86112896 A EP86112896 A EP 86112896A EP 0248940 B1 EP0248940 B1 EP 0248940B1
Authority
EP
European Patent Office
Prior art keywords
contact system
annular magnetic
longitudinal axis
contact
recess
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 - Lifetime
Application number
EP86112896A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0248940A1 (de
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/de
Application granted granted Critical
Publication of EP0248940B1 publication Critical patent/EP0248940B1/de
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 pretensioner on motor vehicle safety belts when colliding with an obstacle with a protective tube or reed contact arrangement which is switched by a magnetic system and according to the preamble of patent claim 1.
  • Such a relay is already known from FR-A 2 366 683, where in a protective tube arrangement a ring magnet is guided in a spring-loaded manner, which triggers the switching operation of the relay contacts in the event of an impact on an obstacle or in another vehicle moving from behind.
  • a relay for actuating a belt tensioner in the manner of a collision sensor is also known, a spring-loaded mass in a housing coming into contact with a plurality of contact elements in the event of an impact against the vehicle with a fixed contact.
  • the present invention is therefore based on the object of developing a relay for actuating a belt tensioner or pretensioner of the type mentioned in such a way that the required switching operation is triggered in a structurally simple design with only a single relay in the event of impacts on the motor vehicle.
  • the switching operation required and to be carried out immediately is to be triggered by a single relay when another motor vehicle drives up from behind.
  • the relay should also be designed so that the shocks that do not occur, or occur approximately in the direction of the longitudinal axis of the vehicle, are detected in a single relay with a simple contact arrangement for triggering the switching process, that is to say, for example, when the motor vehicle is thrown against a lateral obstacle or the shocks caused by another vehicle moving sideways.
  • such a relay is characterized as a solution in that the protective tube or reed contact arrangement is arranged in a housing with its longitudinal axis oriented perpendicular to the direction of travel of the vehicle and vertically to the horizontal plane of the vehicle, and that the annular magnet system encompassing the contact arrangement is arranged 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.
  • a further embodiment provides that the ring-shaped magnet system is arranged at the upper edge of a bearing bowl which tapers conically downwards in the outside diameter and crowned at the tapered end and which rests on the end face of the cylindrical recess, in the plane of the ring-shaped magnet system around the circumference is supported by springs against the wall of the recess of the housing or on the inside of the ring by means of springs radially against the protective tube of the contact arrangement and is held in its rest position equidistant from the contact arrangement.
  • 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, iron bars forming an equidistant arrangement between two magnet yokes rings arranged permanent magnets.
  • the ring-shaped magnet system can also consist of a ring made of plastic, individual permanent magnets can be molded into this ring, or the ring consists of a plastic material that is enriched with powdered permanent magnetic material.
  • the bearing bowl used in one embodiment for supporting the annular magnet system can also be formed from a plastic enriched with pulverized permanent magnetic material, or have a corresponding number of permanent magnets molded in the same spacing on the upper edge as an annular 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 inner 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. 4 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 bearing bowl 8.
  • the bearing bowl 8 is likewise arranged in a cylindrical recess 6 of the housing 2 which runs coaxially with the longitudinal axis of the contact arrangement.
  • the bearing bowl 8 tapers conically 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 by springs 5 and the outer wall of the housing 6.
  • 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 a further embodiment in which the ring-shaped magnet system 4 is arranged on the large diameter of a conical spring 9 which is aligned coaxially with the contact arrangement 1, 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, here the Recess 6 also runs 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).

Landscapes

  • Switches Operated By Changes In Physical Conditions (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
EP86112896A 1986-06-10 1986-09-18 Relais zur Betätigung eines Gurtstraffers an Kraftfahrzeug-Sicherheitshaltegurten Expired - Lifetime EP0248940B1 (de)

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 EP0248940A1 (de) 1987-12-16
EP0248940B1 true EP0248940B1 (de) 1990-10-03

Family

ID=6302680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112896A Expired - Lifetime EP0248940B1 (de) 1986-06-10 1986-09-18 Relais zur Betätigung eines Gurtstraffers an Kraftfahrzeug-Sicherheitshaltegurten

Country Status (6)

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

Families Citing this family (32)

* Cited by examiner, † Cited by third party
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 (ko) * 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
US4877927A (en) * 1989-04-06 1989-10-31 Hamlin Incorporated Extended dwell shock sensing device
US4980526A (en) * 1989-04-06 1990-12-25 Hamlin Incorporated Device and method for testing acceleration shock sensors
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
US5194706A (en) * 1991-08-14 1993-03-16 Hamlin, Inc. Shock sensor with a magnetically operated reed switch
US5212357A (en) * 1991-08-14 1993-05-18 Hamlin, Inc. Extended minimum dwell shock sensor
KR100253594B1 (ko) * 1991-12-02 2000-05-01 또낀 코포레이션 충격센서
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
US5581060A (en) * 1992-06-12 1996-12-03 Oki Electric Industry Co. Ltd. Shock sensor
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
US5711024A (en) * 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh System for controlling yaw moment based on an estimated coefficient of friction
US5694321A (en) * 1994-11-25 1997-12-02 Itt Automotive Europe Gmbh System for integrated driving stability 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
US5732378A (en) * 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Method for determining a wheel brake pressure
US5710704A (en) * 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh System for driving stability control during travel through a curve
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
US5774821A (en) * 1994-11-25 1998-06-30 Itt Automotive Europe Gmbh System for driving stability control
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
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
US5732379A (en) * 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Brake system for a motor vehicle with yaw moment control
DE19515059A1 (de) * 1994-11-25 1996-05-30 Teves Gmbh Alfred Fahrstabilitätsregler mit reibwertabhängiger Begrenzung der Referenzgierrate
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

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097272A (en) * 1962-05-08 1963-07-09 Rudolph F Hautly Inertia switch
GB1253107A (ko) * 1968-08-20 1971-11-10
DE7001274U (de) * 1970-01-16 1970-06-25 Brehm Hans-Heinrich Traegheitsschalter
DE2206985A1 (de) * 1972-02-15 1973-08-23 Bbc Brown Boveri & Cie Elektrischer sicherheitsschalter
US3795780A (en) * 1972-08-11 1974-03-05 Garrett Corp Acceleration sensor with magnetic operated, oscillating reed switch
JPS5255503Y2 (ko) * 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
DE2644606A1 (de) * 1976-10-02 1978-04-06 Daimler Benz Ag Magnetisch betaetigter elektrischer schalter
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
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
US4596971A (en) * 1984-07-26 1986-06-24 Tdk Corporation Magnetic circuit device

Also Published As

Publication number Publication date
DE3619474A1 (de) 1987-12-17
ES2002829A6 (es) 1988-10-01
DE3619474C2 (ko) 1988-03-17
US4705922A (en) 1987-11-10
JPH0499163U (ko) 1992-08-27
JPS62292552A (ja) 1987-12-19
EP0248940A1 (de) 1987-12-16
DE3674791D1 (de) 1990-11-08
KR880001006A (ko) 1988-03-30
KR900001153B1 (ko) 1990-02-27

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