DE602007011516D1 - accelerometer - Google Patents

accelerometer

Info

Publication number
DE602007011516D1
DE602007011516D1 DE602007011516T DE602007011516T DE602007011516D1 DE 602007011516 D1 DE602007011516 D1 DE 602007011516D1 DE 602007011516 T DE602007011516 T DE 602007011516T DE 602007011516 T DE602007011516 T DE 602007011516T DE 602007011516 D1 DE602007011516 D1 DE 602007011516D1
Authority
DE
Germany
Prior art keywords
acceleration sensor
strap
trip plate
trip
pair
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.)
Active
Application number
DE602007011516T
Other languages
German (de)
Inventor
Alan David Crozier
Stephen Anthony George Ruff
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.)
Martin Baker Aircraft Co Ltd
Original Assignee
Martin Baker Aircraft Co Ltd
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 Martin Baker Aircraft Co Ltd filed Critical Martin Baker Aircraft Co Ltd
Publication of DE602007011516D1 publication Critical patent/DE602007011516D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/405—Belt retractors, e.g. reels self-locking in an emergency responsive to belt movement and vehicle movement
    • 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
    • G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
    • 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
    • G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
    • G01P15/032—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass
    • 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
    • G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
    • G01P15/032—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass
    • G01P15/036—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass for indicating predetermined acceleration values
    • 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
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

An inertia reel comprises an omni-directional acceleration sensor having a trip mechanism which converts movement of a part of a holding mechanism into rotational movement of an output of the sensor. The holding mechanism comprises an inertia weight (30, fig 6) which under vehicle acceleration above a predetermined level causes at least one of a pair of lever arms 28 to move so that tongues (29) engages tabs 41 thereby rotating trip plate 40. Trip plate 40 has a ramped side wall 42 which, when the trip plate 40 is rotated, forces bifurcated trigger finger 47 to pivot thereby allowing pawl 45 to engage a ratchet wheel (12) that locks a spool preventing a webbing strap from being paid out. The lever arms 28 have conical cup portions in which a ball shaped inertia weight sits. In other embodiments the weight may be non-spherical having an equatorial bulge or a ball with a pair of opposed substantially conical protrusions. A separate strap acceleration sensor may be provided, this acceleration sensor brakes the spool when the strap undergoes acceleration above a predetermined threshold.
DE602007011516T 2006-03-29 2007-03-28 accelerometer Active DE602007011516D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0606272A GB2436617A (en) 2006-03-29 2006-03-29 Acceleration sensor
GB0705663A GB2436706B (en) 2006-03-29 2007-03-23 An acceleration sensor

Publications (1)

Publication Number Publication Date
DE602007011516D1 true DE602007011516D1 (en) 2011-02-10

Family

ID=36424795

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007011516T Active DE602007011516D1 (en) 2006-03-29 2007-03-28 accelerometer

Country Status (3)

Country Link
AT (1) ATE493663T1 (en)
DE (1) DE602007011516D1 (en)
GB (2) GB2436617A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110077180B (en) * 2019-05-19 2021-02-19 大连元坤机械设备有限公司 Automobile tire pressure stabilizer
CN110077179B (en) * 2019-05-19 2021-06-01 赵海荣 Passive pressure stabilizer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838832A (en) * 1973-01-02 1974-10-01 Irvin Industries Inc Safety belt retractor locking device
IT1091369B (en) * 1977-12-02 1985-07-06 Scudo Soc S R L ROLLER FOR SAFETY BELTS FOR MOTOR VEHICLES
JPS58139159U (en) * 1982-03-12 1983-09-19 株式会社東海理化電機製作所 webbing retractor
IN160515B (en) * 1982-11-20 1987-07-18 Britax Kolb Gmbh & Co
US5660444A (en) * 1995-12-28 1997-08-26 Alliedsignal Inc. Shoulder webbing retractor for a safety restraint system having a self-zeroing center of gravity assembly
US5950952A (en) * 1996-02-02 1999-09-14 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Acceleration sensor apparatus for a vehicle
JP4163291B2 (en) * 1998-07-28 2008-10-08 株式会社東海理化電機製作所 Acceleration sensor
GB9908976D0 (en) * 1999-04-21 1999-06-16 Breed Automotive Tech A seat belt retractor
GB0207030D0 (en) * 2002-03-25 2002-05-08 Baker Martin Aircraft Co Multi-axis "g" sensor
US20060144984A1 (en) * 2004-09-29 2006-07-06 Trw Automotive Gmbh Sensor for activating a vehicle occupant restraint system

Also Published As

Publication number Publication date
GB2436617A (en) 2007-10-03
GB0606272D0 (en) 2006-05-10
GB0705663D0 (en) 2007-05-02
GB2436706B (en) 2008-05-14
ATE493663T1 (en) 2011-01-15
GB2436706A (en) 2007-10-03

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