GB2436706B - An acceleration sensor - Google Patents

An acceleration sensor

Info

Publication number
GB2436706B
GB2436706B GB0705663A GB0705663A GB2436706B GB 2436706 B GB2436706 B GB 2436706B GB 0705663 A GB0705663 A GB 0705663A GB 0705663 A GB0705663 A GB 0705663A GB 2436706 B GB2436706 B GB 2436706B
Authority
GB
United Kingdom
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
GB0705663A
Other versions
GB0705663D0 (en
GB2436706A (en
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
Priority to US11/691,779 priority Critical patent/US7731118B2/en
Priority to EP07006402A priority patent/EP1840580B1/en
Priority to DE602007011516T priority patent/DE602007011516D1/en
Priority to AT07006402T priority patent/ATE493663T1/en
Publication of GB0705663D0 publication Critical patent/GB0705663D0/en
Publication of GB2436706A publication Critical patent/GB2436706A/en
Application granted granted Critical
Publication of GB2436706B publication Critical patent/GB2436706B/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.
GB0705663A 2006-03-29 2007-03-23 An acceleration sensor Active GB2436706B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US11/691,779 US7731118B2 (en) 2006-03-29 2007-03-27 Acceleration sensor
EP07006402A EP1840580B1 (en) 2006-03-29 2007-03-28 An acceleration sensor
DE602007011516T DE602007011516D1 (en) 2006-03-29 2007-03-28 accelerometer
AT07006402T ATE493663T1 (en) 2006-03-29 2007-03-28 ACCELERATION SENSOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0606272A GB2436617A (en) 2006-03-29 2006-03-29 Acceleration sensor

Publications (3)

Publication Number Publication Date
GB0705663D0 GB0705663D0 (en) 2007-05-02
GB2436706A GB2436706A (en) 2007-10-03
GB2436706B true GB2436706B (en) 2008-05-14

Family

ID=36424795

Family Applications (2)

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GB0606272A Withdrawn GB2436617A (en) 2006-03-29 2006-03-29 Acceleration sensor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

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0606272A Withdrawn GB2436617A (en) 2006-03-29 2006-03-29 Acceleration sensor

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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467981A (en) * 1982-03-12 1984-08-28 Kabushiki Kaisha Tokai-Rika-Denki Seisakusho Webbing retractor
US4522350A (en) * 1982-11-20 1985-06-11 Britax-Kolb Gmbh & Co. Safety belt emergency locking retractor
GB2309785A (en) * 1996-02-02 1997-08-06 Tokai Rika Co Ltd Acceleration sensor apparatus for vehicles
GB2349120A (en) * 1999-04-21 2000-10-25 Breed Automotive Tech Actuation means for a seat belt retractor
GB2388430A (en) * 2002-03-25 2003-11-12 Baker Martin Aircraft Co Multi-axis acceleration sensor for an aircraft harness
US20060144984A1 (en) * 2004-09-29 2006-07-06 Trw Automotive Gmbh Sensor for activating a vehicle occupant restraint system

Family Cites Families (4)

* 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
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
JP4163291B2 (en) * 1998-07-28 2008-10-08 株式会社東海理化電機製作所 Acceleration sensor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467981A (en) * 1982-03-12 1984-08-28 Kabushiki Kaisha Tokai-Rika-Denki Seisakusho Webbing retractor
US4522350A (en) * 1982-11-20 1985-06-11 Britax-Kolb Gmbh & Co. Safety belt emergency locking retractor
US4522350B1 (en) * 1982-11-20 1992-07-14 Britax Kolb Gmbh & Co
GB2309785A (en) * 1996-02-02 1997-08-06 Tokai Rika Co Ltd Acceleration sensor apparatus for vehicles
GB2349120A (en) * 1999-04-21 2000-10-25 Breed Automotive Tech Actuation means for a seat belt retractor
GB2388430A (en) * 2002-03-25 2003-11-12 Baker Martin Aircraft Co Multi-axis acceleration sensor for an aircraft harness
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
DE602007011516D1 (en) 2011-02-10
ATE493663T1 (en) 2011-01-15
GB2436706A (en) 2007-10-03

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