[특허]Automatic locking retractor with timing clutch mechanism

[미국특허] Automatic locking retractor with timing clutch mechanism 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60R-022/28
출원번호	US-0008420 (1998-01-16)
발명자 / 주소	Gorman Patrick J. Yee Phillip D. Gray Mark F. Kohlndorfer Kenneth H.
출원인 / 주소	Breed Automative Technology, Inc.
대리인 / 주소	Seitzman
인용정보	피인용 횟수 : 16 인용 특허 : 9

초록 ▼

A safety belt retractor (10) comprised of a spool (28), a belt (40) wound on the spool (28), a ratchet wheel (48), and a torsion bar (44) interconnecting the spool (28) to the ratchet wheel (48) and capable of yielding in response to loading exerted on the belt (40) when the ratchet wheel (48) is locked against rotation. The safety belt retractor (10) also includes a holdout mechanism (18) which is normally operable in an ELR mode to permit operation of an emergency locking mechanism (16) and which can be selectively shifted into an ALR mode for locking the ratchet wheel (48) against rotation to prevent further payout of the belt (40) after a predetermined length of the belt (40) has been withdrawn from the spool (28). A timing assembly (124) functions to determine when the predetermined length of the belt (40) has been withdrawn or retracted for controlling engagement and disengagement of a latch mechanism (110). A timing clutch mechanism (20) interconnects the torsion bar (44) to the timing assembly (124) and is normally operable for driving the timing assembly (124) in response to withdrawal and retraction of the belt (40). The timing clutch mechanism (20) is further operable to permit relative movement between the torsion bar (44) and the timing assembly (124) for resetting the timing assembly (124) to a predefined set position in response to full retraction of the belt (40) after the torsion bar (44) has yielded. As such, the timing clutch mechanism (20) functions to maintain the predetermined length of the belt (40) required for selective actuation of the holdout mechanism (18) in a manner which is independent of yielding of the torsion bar (44).

대표청구항 ▼

[ We claim:] [1.] A safety belt retractor comprising:a spool (28);a belt (40) wound on the spool (28) such that rotation of the spool (28) in a first direction results in unwinding of the belt (40) from the spool (28) and rotation of the spool (28) in a second direction results in winding of the belt (40) on the spool (28);a ratchet wheel (48);a torsion bar (44) connecting the ratchet wheel (48) to the spool (28) and which is adapted to yield in response to loading exerted on the spool (28) by the belt (40) when the ratchet wheel (48) is locked against rotation in the first direction for permitting the spool (28) to rotate in the first direction relative to the ratchet wheel (48) and unwind an additional length of the belt (40);a lock pawl (110) movable between a first position whereat bi-directional rotation of the ratchet wheel (48) is permitted and a second position whereat rotation of the ratchet wheel (48) in the first direction is prevented;a timing assembly (124) movable from a set position when the belt (40) is fully wound on the spool (28) to an actuated position when a predetermined length of the belt (40) is withdrawn from the spool (28) for causing the lock pawl (110) to move from its first position to its second position, and wherein the timing assembly (124) is movable from the actuated position to the set position when the predetermined length of the belt (40) is fully wound on the spool (28) for causing the lock pawl (110) to move from its second position to its first position; anda clutch mechanism (20) connecting the timing assembly (124) for movement between its set and actuated positions in response to bi-directional rotation of the ratchet wheel (48), the clutch mechanism (20) is further operable to permit rotation of the ratchet wheel (48) in the second direction for winding the additional length of the belt (40) caused by yielding of the torsion bar (44) onto the spool (28) when the timing assembly (24) is in its set position.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Matsumoto Kenjiro (Osaka JPX), Automatic-emergency locking retractor for seat belts.
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Fohl Artur (Schorndorf DEX), Belt retractor with an integrated belt pretensioner and an energy converter.
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Miller ; III H. John ; Keller Gerald, Multi-level load limiting torsion bar retractor.
상세보기
Hibata Ganta,JPX ; Matsuki Masuo,JPX, Retractor for seat belt.
상세보기
Ono Katsuyasu,JPX ; Matsuki Masuo,JPX ; Hirase Satoshi,JPX, Retractor for seat belt.
상세보기
Dybro Niels (Utica MI) Miller ; III Harold John (Troy MI), Retractor with load limiting spool with decoupled pretensioner.
상세보기
Ebner Ralf,DEX ; Holzapfel Volker,DEX ; Weyhmuller Gunter,DEX, Safety belt retractor with belt tensioner acting on the belt reel.
상세보기
Ebner Ralf (Gschwend DEX) Grout John (Alfdorf DEX) Holzapfel Volker (St. Wendel DEX) Mller Albrecht (Durlangen DEX) Weyhmller Gnter (Vordersteinenberg DEX), Seat belt retractor.
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Huber Andreas,DEX, Vehicular seat belt retractor.
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이 특허를 인용한 특허 (16) 인용/피인용 타임라인 분석

Ford, Brian, Ballistic powered inertia reel.
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Peter,Cornelius, Belt retractor.
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Wier Franz,DEX, Belt retractor for a safety belt restraint system.
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Bohmler, Klaus, Belt retractor for a vehicle safety belt and method for actuating the belt retractor.
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Stegmeier, Michael; Michel, Frederic, Belt retractor for a vehicle seat belt.
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Kielwein, Thomas; Roehrle, Martin, Force limiter for a vehicle safety belt.
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Morgan,Christopher D.; Temple,Bayard C., Noise reducing seat belt retractor.
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O'Brien, Matthew M.; Culbertson, Christopher C.; Godby, Colin A.; King, Stephen M.; McCloud, Grant R.; Van Druff, Charles E., Restraint system.
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Dueck,Raymond, Retractable load support system.
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Ver Hoven,Robert E.; Boelstler,Richard A., Retractor with ALR mode of operation with vehicle sensor block-out.
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Hideaki Yano JP; Koji Tanaka JP; Hiromasa Tanji JP, Seat belt retractor.
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Palliser, Martyn, Seat belt retractor.
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O'Neill, John, Seat belt sensing for vehicle occupant load and misuse.
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Mori,Shinji; Komiya,Fuminori; Koide,Teruhiko, Webbing retractor.
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Kitazawa, Yasuho; Takamatsu, Hitoshi; Yasuda, Masaki; Aihara, Kazuhiko; Nakashima, Toshio; Nagata, Tomonori, Webbing take-up device.
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Mori, Shinji; Sumiyashiki, Akira; Hashimoto, Masakazu, Webbing take-up device.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Automatic locking retractor with timing clutch mechanism 원문보기