IT1250884B - Sensore d'urti smorzato a gas perfezionato. - Google Patents

Sensore d'urti smorzato a gas perfezionato.

Info

Publication number
IT1250884B
IT1250884B ITTO911004A ITTO911004A IT1250884B IT 1250884 B IT1250884 B IT 1250884B IT TO911004 A ITTO911004 A IT TO911004A IT TO911004 A ITTO911004 A IT TO911004A IT 1250884 B IT1250884 B IT 1250884B
Authority
IT
Italy
Prior art keywords
type
sensor
contacts
impact sensor
improved gas
Prior art date
Application number
ITTO911004A
Other languages
English (en)
Inventor
Torbjorn Thuen
Harald S Husby
Allen K Breed
Original Assignee
Breed Automotive Tech
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 Breed Automotive Tech filed Critical Breed Automotive Tech
Publication of ITTO911004A0 publication Critical patent/ITTO911004A0/it
Publication of ITTO911004A1 publication Critical patent/ITTO911004A1/it
Application granted granted Critical
Publication of IT1250884B publication Critical patent/IT1250884B/it

Links

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/135—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by making use of contacts which are actuated by a movable inertial mass
    • 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
    • H01H35/141—Details
    • H01H35/142—Damping means to avoid unwanted response
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Air Bags (AREA)

Abstract

Sensori d'urti convenzionali smorzati a gas del tipo a sfera in tubo, utilizzano una sfera rivestita con oro per collegare due contatti. Quando la sfera rileva una accelerazione (decelerazione) nella direzione longitudinale di un cilindro, di grandezza e durata sufficienti, essa si sposta in un punto in cui collega i contatti, completando il circuito elettrico ed avviando il funzionamento di un sistema di sicurezza a ritenuta. Un interruttore attivato dal flusso magnetico è combinato con questo tipo di sensore smorzato con gas per provvedere una durata di contatto piena e affidabile e assicurare il corretto funziona-mento del sensore. Il livello di forza di sollecitazione per sensori d'urto nella zona d'urto di questo tipo è stato aumentato per evitare problemi di accensione tardiva in urti marginali.
ITTO911004A 1990-12-28 1991-12-20 Sensore d'urti smorzato a gas perfezionato. IT1250884B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/635,764 US5237134A (en) 1989-12-06 1990-12-28 Gas damped crash sensor

Publications (3)

Publication Number Publication Date
ITTO911004A0 ITTO911004A0 (it) 1991-12-20
ITTO911004A1 ITTO911004A1 (it) 1993-06-20
IT1250884B true IT1250884B (it) 1995-04-21

Family

ID=24549032

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO911004A IT1250884B (it) 1990-12-28 1991-12-20 Sensore d'urti smorzato a gas perfezionato.

Country Status (7)

Country Link
US (1) US5237134A (it)
CA (1) CA2058323A1 (it)
DE (1) DE4143032A1 (it)
FR (1) FR2671189A1 (it)
GB (1) GB2252206A (it)
IT (1) IT1250884B (it)
SE (1) SE9103712L (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257226B (it) * 1991-06-11 1996-01-10 Breed Automotive Tech Sensore del cambiamento di velocita' con un magnete cilindrico.
US5178410A (en) * 1991-06-14 1993-01-12 Breed Automotive Technology, Inc. Velocity change sensor with lateral shock absorber
US5416293A (en) * 1994-08-17 1995-05-16 Hamlin, Inc. Shock sensor including a compound housing and magnetically operated reed switch
DE4434349A1 (de) * 1994-09-26 1996-03-28 Heino Burmester Beschleunigungsgrenzwertschalter
WO1996021937A1 (de) * 1995-01-12 1996-07-18 Siemens Aktiengesellschaft Mechanischer beschleunigungsschalter
US5756948A (en) * 1996-12-31 1998-05-26 Breed Automotive Technology, Inc. Side-impact electro-mechanical accelerometer to actuate a vehicular safety device
US5845730A (en) * 1996-12-31 1998-12-08 Breed Automotive Technology, Inc. Electro-mechanical accelerometer to actuate a vehicular safety device
US5831521A (en) * 1997-08-26 1998-11-03 Huang; Ting-Lung Automatic emergency signal means for vehicles
CA2304479A1 (en) 1997-10-23 1999-04-29 Breed Automotive Technology, Inc. Crash detection system
DE19757289C2 (de) * 1997-12-22 1999-11-18 Siemens Ag Bidirektionaler Beschleunigungssensor
US6018130A (en) * 1998-05-20 2000-01-25 Breed Automotive Technology, Inc. Roll-over sensor with pendulum mounted magnet
US5955714A (en) * 1998-05-20 1999-09-21 Breed Technologies, Inc. Roll-over shunt sensor
GB2343952B (en) 1998-11-18 2000-11-08 Breed Automotive Tech Pendulum mass acceleration sensor
US6282942B1 (en) * 2000-01-19 2001-09-04 Breed Automotive Technology, Inc. Crash sensor with magnetic field sensor
DE10010415C1 (de) * 2000-03-03 2001-07-05 Giok Djien Go Vorrichtung zum Erfassen der Gurtbenutzung und Lebensdauer der Rückhaltesysteme
FR2871574B1 (fr) * 2004-06-15 2007-09-21 Daniel Lucas Detecteur de choc
KR100855475B1 (ko) * 2007-09-28 2008-09-01 한국과학기술원 차량 충돌 감지 모듈 및 이를 구비하는 차량 에어백 전개시스템
US11938880B2 (en) 2018-11-01 2024-03-26 Robert Bosch Gmbh Low impact crash detection for a vehicle
US12029437B1 (en) 2020-08-14 2024-07-09 Henry Schein, Inc. Hand piece for powered osteotome

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737599A (en) * 1971-10-26 1973-06-05 Gulton Ind Inc Acceleration switch with magnetic permeable metal sleeve for shunting magnetic field
US4329549A (en) * 1980-04-29 1982-05-11 Breed Corporation Magnetically biased velocity change sensor
BE894273A (nl) * 1982-09-01 1983-03-01 C P Clare Internat N V Magnetische schakelaar met vertraging
DE3338287C1 (de) * 1983-10-21 1985-05-02 W. Günther GmbH, 8500 Nürnberg Beschleunigungs- und Verzoegerungs-Sensor
US4816627A (en) * 1987-12-24 1989-03-28 Ford Motor Company Fluid damped acceleration sensor
DE8806240U1 (de) * 1988-05-11 1988-08-18 W. Günther GmbH, 8500 Nürnberg Beschleunigungs- oder Verzögerungs-Sensor
US4900880A (en) * 1988-08-15 1990-02-13 Automotive Technologies International, Inc. Gas damped crash sensor
SE513091C2 (sv) * 1989-10-06 2000-07-03 Breed Automotive Tech Accelerometer för avkänning av hastighetsförändringar hos ett fordon
US5031931A (en) * 1989-12-06 1991-07-16 Breed Automotive Corporation Velocity change sensor with spring bias

Also Published As

Publication number Publication date
GB9127491D0 (en) 1992-02-19
FR2671189A1 (fr) 1992-07-03
CA2058323A1 (en) 1992-06-29
DE4143032A1 (de) 1992-07-02
US5237134A (en) 1993-08-17
SE9103712L (sv) 1992-06-29
ITTO911004A1 (it) 1993-06-20
ITTO911004A0 (it) 1991-12-20
GB2252206A (en) 1992-07-29
SE9103712D0 (sv) 1991-12-16

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