JP4990770B2 - 荷重を制限するシートベルトリトラクタ - Google Patents
荷重を制限するシートベルトリトラクタ Download PDFInfo
- Publication number
- JP4990770B2 JP4990770B2 JP2007523551A JP2007523551A JP4990770B2 JP 4990770 B2 JP4990770 B2 JP 4990770B2 JP 2007523551 A JP2007523551 A JP 2007523551A JP 2007523551 A JP2007523551 A JP 2007523551A JP 4990770 B2 JP4990770 B2 JP 4990770B2
- Authority
- JP
- Japan
- Prior art keywords
- spool
- seat belt
- energy
- absorption rate
- belt retractor
- 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 - Fee Related
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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
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
-
- 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
- B60R22/341—Belt retractors, e.g. reels comprising energy-absorbing means
- B60R22/3413—Belt retractors, e.g. reels comprising energy-absorbing means operating between belt reel and retractor frame
-
- 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
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
- B60R2022/286—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material
- B60R2022/287—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material of torsion rods or tubes
-
- 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
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
- B60R2022/288—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices with means to adjust or regulate the amount of energy to be absorbed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Description
に関する。
Claims (8)
- シートベルトを引き出させ、かつシートベルトを引き込むスプール(14)と、
シートベルトの引き出し時に前記スプール(14)からエネルギーを吸収するエネルギー吸収機構(18)であって、それぞれが前記スプール(14)の内側に配置された、比較的高いエネルギー吸収率用の第1の部分(22)を有する第1のねじり棒と比較的低いエネルギー吸収率用の第2の部分(26)を有する第2のねじり棒とからなる2つのねじり棒と、該2つのねじり棒を囲むように配置された、外面に雄ねじ山を備えた管であるねじ付き部材(50)とを有し、該ねじ付き部材(50)は、内側に、前記第1の部分(22)のスプライン(25)と噛み合うことで、前記ねじ付き部材(50)が前記第1の部分(22)と一緒に回転移動するように前記ねじ付き部材(50)をロックさせる溝(51)を有し、前記第2の部分(26)も、前記ねじ付き部材(50)の前記溝(51)と噛み合って、該溝(51)と一緒に回転するようにロックされるスプライン(200)を有する、エネルギー吸収機構(18)と、
前記ねじ付き部材(50)上に支持され、前記第1の部分(22)と前記第2の部分(26)との間を移動するように構成されたシフト機構(30)であって、前記スプール(14)の回転に連動して、シートベルトが引き出されることによるエネルギーによって前記スプール(14)が回転する際に前記ねじ付き部材(50)の前記雄ねじ山に沿って回転して、前記第1の部分(22)が前記スプール(14)に係合している第1のリンク位置(34)と、前記第2の部分(26)が前記スプール(14)に係合するようになる第2のリンク位置(38)との間を移動することが可能であると共に、前記第1の部分(22)に高い吸収率でエネルギーを吸収させる前記第1のリンク位置(34)と、前記第2の部分(26)に低い吸収率でエネルギーを吸収させる前記第2のリンク位置(38)との間を、シートベルトが引き出されることによるエネルギーによって駆動させられることが可能であるシフト機構(30)と、
衝突時に制御ユニット(58)と通信して車両の乗員の体重に応じて制御され、前記第1の部分(22)および前記第2の部分(26)の一方と、前記スプール(14)とを連結する連結器(54)と、
を有し、
前記車両の乗員の体重が重い場合には、前記連結器(54)が前記第1の部分(22)と前記スプール(14)とを連結し、その間、前記シフト機構(30)は、前記第1のリンク位置に維持され、それによって、前記スプール(14)からのエネルギーが高い吸収率で前記第1の部分(22)により吸収され、
前記車両の乗員の体重が普通の場合には、前記連結器(54)は、前記第1の部分(22)と前記スプール(14)とを連結して該スプール(14)からのエネルギーが所定の回転数または所定の時間にわたって前記高い吸収率で前記第1の部分(22)により吸収された後で、前記第2の部分(26)と前記スプール(14)とを連結するように移動し、その際に、前記シフト機構(30)は、前記第1のリンク位置(34)から前記第2のリンク位置(38)へ移動し、それによって、荷重を前記スプール(14)と前記連結器(54)とを通じて前記第2の部分(26)に伝達する荷重経路(29)が形成されて、前記スプール(14)からのエネルギーがより低い吸収率で前記第2の部分(26)により吸収され、
前記車両の乗員の体重が軽い場合には、すぐに荷重が前記荷重経路(29)に沿って伝達されるように前記連結器(54)が前記第2の部分(26)と前記スプール(14)とを連結し、それによって、前記スプール(14)からのエネルギーが前記より低い吸収率で前記第2の部分(26)により吸収される、
シートベルトリトラクタ(10)。 - 前記第1の部分(22)が、前記スプール(14)の一端に設けられたロックホイール(21)の溝と噛み合うスプライン(24)を備えた一方の端部(100)を有しており、前記第2の部分(26)が、前記スプールの反対端に設けられた前記連結器(54)の溝(33a)と噛み合うことで、前記第2の部分(26)が前記連結器(54)と一緒に回転移動するように前記第2の部分(26)をロックさせるスプライン(33)を備えた端部(104)を有している、請求項1に記載のシートベルトリトラクタ(10)。
- 前記シフト機構(30)は、前記エネルギー吸収機構(18)と前記スプール(14)との間の相対運動によって、前記第1のリンク位置(34)と前記第2のリンク位置(38)との間を駆動させられることが可能である、請求項1に記載のシートベルトリトラクタ(10)。
- 前記シフト機構(30)は、前記エネルギー吸収機構(18)が変形することによって、前記第1のリンク位置(34)と前記第2のリンク位置(38)との間を駆動させられることが可能である、請求項3に記載のシートベルトリトラクタ(10)。
- 前記シフト機構(30)は、前記スプール(14)と一緒に移動するように該スプール(14)に連結されているとともに、シートベルトの引き出し時に前記エネルギー吸収機構(18)と一緒に移動するように該エネルギー吸収機構(18)に連結された前記ねじ付き部材(50)上にねじ込まれている、請求項3に記載のシートベルトリトラクタ(10)。
- 前記連結器(54)は、前記第1の部分(22)が前記スプール(14)に連結される第1の連結位置(62)と、前記第2の部分(26)が前記スプール(14)に連結される第2の連結位置(66)とを有しており、前記連結器(54)は、前記第1の連結位置(62)と前記第2の連結位置(66)との間を前記スプール(14)の回転軸に概ね沿った方向に移動する、請求項1に記載のシートベルトリトラクタ(10)。
- 前記エネルギー吸収機構(18)は、前記比較的低い吸収率に続いて前記比較的高い吸収率で前記スプール(14)からエネルギーを吸収するように構成されている、請求項3に記載のシートベルトリトラクタ(10)。
- 前記エネルギー吸収機構(18)は、最初は前記比較的高い吸収率で前記スプール(14)からエネルギーを吸収するように構成されており、次に前記比較的低い吸収率に切り換わり、続いて再び前記比較的高い吸収率に切り換わる、請求項7に記載のシートベルトリトラクタ(10)。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59215404P | 2004-07-29 | 2004-07-29 | |
US60/592,154 | 2004-07-29 | ||
US10/931,231 | 2004-09-01 | ||
US10/931,231 US7240924B2 (en) | 2004-07-29 | 2004-09-01 | Multilevel load limiting retractor with dual shifting mode |
PCT/US2005/017441 WO2006022930A2 (en) | 2004-07-29 | 2005-05-19 | Load limiting seat belt retractor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008508135A JP2008508135A (ja) | 2008-03-21 |
JP4990770B2 true JP4990770B2 (ja) | 2012-08-01 |
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Application Number | Title | Priority Date | Filing Date |
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JP2007523551A Expired - Fee Related JP4990770B2 (ja) | 2004-07-29 | 2005-05-19 | 荷重を制限するシートベルトリトラクタ |
Country Status (9)
Country | Link |
---|---|
US (1) | US7240924B2 (ja) |
EP (1) | EP1773631B1 (ja) |
JP (1) | JP4990770B2 (ja) |
KR (1) | KR100837045B1 (ja) |
CN (1) | CN100594146C (ja) |
AT (1) | ATE521507T1 (ja) |
MX (1) | MX2007000078A (ja) |
PL (1) | PL1773631T3 (ja) |
WO (1) | WO2006022930A2 (ja) |
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-
2004
- 2004-09-01 US US10/931,231 patent/US7240924B2/en active Active
-
2005
- 2005-05-19 WO PCT/US2005/017441 patent/WO2006022930A2/en active Application Filing
- 2005-05-19 AT AT05754818T patent/ATE521507T1/de not_active IP Right Cessation
- 2005-05-19 KR KR1020077002127A patent/KR100837045B1/ko active IP Right Grant
- 2005-05-19 JP JP2007523551A patent/JP4990770B2/ja not_active Expired - Fee Related
- 2005-05-19 MX MX2007000078A patent/MX2007000078A/es active IP Right Grant
- 2005-05-19 PL PL05754818T patent/PL1773631T3/pl unknown
- 2005-05-19 EP EP05754818A patent/EP1773631B1/en not_active Not-in-force
- 2005-05-19 CN CN200580025677A patent/CN100594146C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2006022930A3 (en) | 2006-10-12 |
EP1773631A4 (en) | 2009-01-07 |
MX2007000078A (es) | 2007-03-28 |
ATE521507T1 (de) | 2011-09-15 |
JP2008508135A (ja) | 2008-03-21 |
US20060022447A1 (en) | 2006-02-02 |
US7240924B2 (en) | 2007-07-10 |
CN1993255A (zh) | 2007-07-04 |
PL1773631T3 (pl) | 2012-02-29 |
CN100594146C (zh) | 2010-03-17 |
EP1773631B1 (en) | 2011-08-24 |
WO2006022930A2 (en) | 2006-03-02 |
EP1773631A2 (en) | 2007-04-18 |
KR20070029271A (ko) | 2007-03-13 |
KR100837045B1 (ko) | 2008-06-11 |
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