WO2003055730A1 - Levier de direction de type a basculement de vehicule - Google Patents
Levier de direction de type a basculement de vehicule Download PDFInfo
- Publication number
- WO2003055730A1 WO2003055730A1 PCT/JP2002/013507 JP0213507W WO03055730A1 WO 2003055730 A1 WO2003055730 A1 WO 2003055730A1 JP 0213507 W JP0213507 W JP 0213507W WO 03055730 A1 WO03055730 A1 WO 03055730A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- column member
- rear column
- tilt
- tilt adjustment
- vehicle
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/187—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/183—Steering columns yieldable or adjustable, e.g. tiltable adjustable between in-use and out-of-use positions, e.g. to improve access
Definitions
- the steering wheel can be tilt-adjusted within the driving tilt adjustment range, and can be tilted at a large angle beyond the driving tilt adjustment range.
- the present invention relates to a tilt adjustment type steering device for a vehicle. book
- a rear column member is swingably connected to the rear end of the front column member (so-called swing tilt).
- the swing range of the rear column member is within a driving tilt adjustment range suitable for driving the vehicle, and is generally about ⁇ 10 degrees. .
- RV vehicles By the way, recently, the demand for RV vehicles is increasing, and the usage of vehicles is also diversifying. For example, eating in a car with a family, or camping instead of a tent.
- a vehicle tilt-adjustable steering device includes a front column member fixed to a vehicle body, and a rear column member swingable within a driving tilt adjustment range.
- the rear column member When the rear column member is fixed in the tilt position, it is mounted on the fixed gear provided on one of the front column member and the rear column member, and on the other of the front column member and the rear column member.
- the movable gear When the movable gear is engaged and the rear column member is released from the tilt position, the movable gear is swung to release the engagement between the two gears.
- a large angle tilt tension panel that elastically pulls the rear column member when the rear column member is tilted at a large angle beyond the operating tilt adjustment range is interposed. It is characterized by having.
- the tilt adjusting steering apparatus for a vehicle is preferably arranged such that the tension panel for large-angle tilt is provided when the rear column member is set at a neutral position in a tilt adjustment range for driving.
- the tension panel is arranged so that the center line of the tension panel passes at or near the center of tilt, and according to this configuration, the rear column member is disposed between the front column member and the rear column member during operation.
- a tension panel for large-angle flip-up is provided to naturally pull the rear column member.
- the center panel When the rear column member is set at the neutral position in the tilt adjustment range for operation, the center panel is almost parallel to the axis of the steering wheel and passes through the center of the tilt or the side near the tilt panel. Because of the arrangement, the tension panel for large-angle flip-up does not exhibit a natural tensile force in the normal operation tilt adjustment range, and its center line only when the rear column member is tilted at a large angle. Can be offset from the tilt center, and the rear column member can be pulled gently and flipped up to maintain that state. Therefore, when the steering wheel is flipped up by a large angle, the steering wheel can be reliably held at the flipped up position.
- a tilt type steering apparatus for a vehicle comprises: a front column member fixed to a vehicle body; a rear column member swingable within a driving tilt adjustment range.
- the fixed gear is provided on one of the front column member and the rear column member, and is provided on the other of the front column member and the rear column member.
- the movable tilting rocker swings the movable gear to release the engagement between the two gears.
- the movable gear When the rear column member is tilted at a large angle beyond the tilt adjustment range for operation, the movable gear is characterized in that its end face is locked to the end face of the fixed gear and locked.
- the movable gear when the rear column member is tilted up by a large angle, the movable gear is locked by locking its end face to the end face of the fixed gear. Even if a heavy load is applied so that the driver or the like hangs, it can be securely held so as not to move at that position.
- the fixed gear and the movable gear each have teeth that engage with each other in a driving tilt adjustment range, and the fixed gear has teeth on its teeth. It is preferable to have a non-tooth part region which is not formed with a tooth adjacently. With this configuration, the steering shaft is not locked outside the tilt adjustment range, and therefore, the driver is not allowed to adjust the tilt There is no risk of driving in position.
- the joint in which the rear column member is swingably connected to the front column member around the tilt center can bend the rear column member by a large angle. Is preferred. In this way, for example, by increasing the length of the yoke leg of the universal joint, it is possible to tilt the steering wheel by a large angle in any rotational phase.
- the tilt adjusting type steering column device when the rear column member is tilted up by a large angle beyond the operating tilt adjustment range, the rear column member is tilted up to the tilting position. Therefore, it is not necessary to lock the movable gear by locking the movable gear to a fixed gear as a means for holding the rear column member at the time of tilting up, and the structure can be simplified.
- FIG. 1 is a longitudinal sectional view of a tilt-adjustable steering device for a vehicle according to a first embodiment of the present invention.
- FIG. 2 is a bottom view of the vehicle tilt-adjustable steering device shown in FIG.
- FIG. 3 is a longitudinal sectional view of the vehicle tilt-adjustable steering device shown in FIG. 1 and shows a state in which a rear column member is flipped up by a large angle beyond a driving tilt adjustment range.
- FIG. 4 is a cross-sectional view taken along line AA of FIG.
- FIG. 5 is a longitudinal sectional view of a vehicle tilt-adjustable steering device according to a second embodiment of the present invention, in which a rear column member is tilted up by a large angle beyond a driving tilt adjustment range. Is shown.
- FIG. 6 is a longitudinal sectional view of a vehicle tilt-adjustable steering device according to a third embodiment of the present invention. Shows the state tilted up by degrees.
- FIG. 1 is a longitudinal sectional view of a vehicle tilde-adjustable steering device according to a first embodiment of the present invention.
- FIG. 2 is a bottom view of the vehicle tilt-adjustable steering device shown in FIG.
- FIG. 3 is a longitudinal sectional view of the vehicle tilt-adjustable steering device shown in FIG. 1, and shows a state in which a rear column member is flipped up by a large angle beyond a driving tilt adjustment range.
- FIG. 4 is a cross-sectional view taken along line AA of FIG.
- the steering shaft includes a front steering shaft 1 connected to a vehicle steering gear mechanism (not shown) via an intermediate shaft coupling and the like, and a rear steering shaft 2 to which a steering wheel (not shown) is fixed at a rear end. And connected by universal joint 3.
- the front steering shaft 1 and the rear steering shaft 2 are rotatably housed in a front column member 4 and a rear column member 5, respectively.
- a rear column member 5 is swingably connected to a rear portion of the front column member 4 fixed to the vehicle body.
- the rear column member 5 has a tilt adjustment range for operation around a tilt center C (about ⁇ 1). (0 degree).
- the tilt center C coincides with the center of the universal joint 3. '
- a fixed gear 6 having teeth 6a is fixed to the lower surface of the front column member 4.
- a movable gear 8 having a tooth portion 8 a that matches with the tooth portion 6 a of the fixed gear 6 is pivotally supported on a pivot 7 provided on the rear column member 5 so as to swing freely.
- the teeth 6a and 8a are arranged in an arc around the tilt center C.
- a counter member 9 integrated with the rear column member 5 in the vehicle width direction (see FIG. 2).
- a wedge-shaped member 10 having a pressing tapered surface 10a that contacts and presses the rear tapered surface of the movable gear 8 is arranged so as to be movable in the front-rear direction.
- a pressing spring 11 (compression spring) is interposed between a rear end of the wedge-shaped member 10 and a rearward extending piece 8b extending from the movable gear 8.
- the pressing spring 11 (compression panel) is always in the direction (clockwise in FIG. 1) in which the teeth 8 a of the movable gear 8 are engaged with the teeth 6 a of the fixed gear 6 via the wedge-shaped member 10. It is energizing.
- the pressing spring 1 1 (compression spring) releases the movable gear 8 via the extension piece 8b in the release direction (counterclockwise in FIG. 1) when releasing the fixing of the rear column member 5 to the tilt position. It also acts on the body.
- tilt adjustment levers 12 are formed integrally with the wedge-shaped member 10 and extend.
- the tilt adjustment lever 12 is swingable around a lever rotation center pin 12 a provided on the rear column member 5.
- a first support panel 13 (compression spring) is interposed between the front column member 4 and the rear column member 5. This prevents the rear column member 5 and the steering wheel from falling when the engagement between the two gears 6 and 8 is released.
- the end face 8 d of the movable gear 8 functions as a stopper that comes into contact with the end face 6 c of the fixed gear 6 when the rear column member 5 is at the lowest tilt position.
- the tilt adjustment lever 12 when adjusting the tilt, the tilt adjustment lever 12 is pushed backward by hand against the urging force of the pressing spring 11 (compression spring) (FIG. 2). To move the wedge-shaped member 10 backward (FIG. 1).
- the movable gear 8 rotates counterclockwise around the pivot 7 in FIG. 1 to release the engagement with the fixed gear 6 with the help of the urging force of the pressing spring 11 (compression panel). You. Thus, the fixing of the rear column member 5 to the tilt position can be released.
- the tilt adjustment is performed by tilting the rear column member 5 within a driving tilt adjustment range (approximately ⁇ 10 degrees) suitable for driving the vehicle.
- a universal joint 3 in which a front steering shaft 1 and a rear steering shaft 2 are swingably connected around a tilt center C has a yoke leg, for example, which is different from a conventional one.
- the rear column member 5 can be bent to, for example, about 60 degrees.
- the rear column member 5 can be tilted up to a large angle (for example, 50 degrees) beyond the range of tilt adjustment for driving (about ⁇ 10 degrees).
- the fixed gear 6 has a non-toothed area 6b in which no teeth are formed, adjacent to the teeth 6a.
- the movable gear 8 is configured such that the end face 8 c thereof is locked to the end face 6 c of the fixed gear 6 by the urging force of the pressing panel 11 (compression spring).
- the movable gear 8 moves while its tooth portion 8a is in sliding contact with the non-teeth portion region 6b of the fixed gear 6 until the rear column member 5 starts to jump up and completes. Thereafter, as shown in FIG. 3, when the large-angle flip-up is completed, the movable gear 8 causes the teeth 8 a of the movable gear 8 to move in the non-tooth region 6 a by the urging force of the pressing spring 11. As a result, the end face 8 c is locked to the end face 6 c of the fixed gear 6 and locked.
- a second angle Support panel 23 (tensile panel) is interposed between the support piece 4a formed on the front column member 4 and the support piece 5a formed on the rear column member 5.
- the second support panel 23 moves the rear column member 5 between the front column axis and the rear column axis within the tilt adjustment range (about ⁇ 10 degrees) during operation.
- the center line is substantially parallel to the axes of the steering shafts 1 and 2, and the center line is arranged so as to pass through or near the tilt center C when viewed from behind.
- the second support panel 23 (tensile panel) does not exhibit a natural tensile force in the normal operation tilt adjustment range, and as shown in FIG. 3, the operation tilt adjustment range.
- the center line is offset from the tilt center, and the rear column member 5 is elastically pulled (in the counterclockwise direction, ie, in the direction in which the rear column member 5 is lifted). It can be flipped up and held at the flipped-up completion position. Therefore, the steering wheel can be flipped up by a large angle, and the steering wheel can be reliably held at that position.
- the first support panel 13 compression panel
- the second support spring 23 jumps up due to the tensile force of the second support spring 23.
- the large angle flip-up sensor 24 detection means for large angle flip-up
- the position of the sensor 24 is replaced by the rear end support seat of the front column member 4.
- the front end support seat 2 2 (flip stopper) of the rear column member 5 comes into contact with 2 1 (flip stopper), a cushioning member for buffering an impact or the like due to this contact is arranged. Is also good.
- the pin 25a of the solenoid 25 (tilt adjusting lever locking means) provided on the rear column member 5 enters the locking hole 1 2b of the tilt adjusting lever 12.
- the tilt adjustment levers 1 and 2 are locked.
- the rear column member 5 is flipped up by a large angle (for example, 50 degrees) while the tilt adjustment lever 12 is held in a state where the tilt is fixed and released.
- the movable gear 8 moves with its teeth 8 a slidingly contacting the non-tooth region 6 of the fixed gear 6 until the rear column member 5 starts to flip up and completes.
- the movable gear 8 has its tooth 8a disengaged from the non-tooth region 6a by the urging force of the pressing panel 11, and its end face 8c is fixed. Engage and lock to end face 6c of gear 6. Therefore, the steering wheel (not shown) fixed to the rear end of the rear steering shaft 2 ensures that even if a heavy load is applied due to the driver or the like falling down, the driver does not move at that position. Can be held.
- the large-angle flip-up sensor 24 uses the front-column member 4 rear-end support seat 21 (flip-up stopper) and the rear column member 5 front-end support seat. 2 Detects contact of 2 (flip-up stopper). As a result, the shift can be locked in the parking range (P) so that the vehicle cannot travel.
- the second support panel 2 3 (tension panel) offsets the center line from the tilt center and moves the rear column member 5 in the counterclockwise direction, that is, (In the direction in which the rear column member 5 is lifted up). Therefore, when the steering wheel is flipped up by a large angle, the steering wheel can be reliably held at the flip-up position.
- the movable gear 8 rotates counterclockwise in FIG. 3 to unlock the end face 8 c of the movable gear 8 and the end face 6 c of the fixed gear 6.
- the rear column member 5 is returned, and after adjusting the tilt within the tilt adjustment range for operation (approximately ⁇ 10 degrees), the rear column member 5 is tightened and fixed at the tilt position.
- FIG. 5 is a longitudinal sectional view of a vehicle tilt-adjustable steering device according to a second embodiment of the present invention, showing a state in which a rear column member is flipped up by a large angle beyond a driving tilt adjustment range. Show.
- the rear portion of the fixed gear 6 protrudes rearward of the front column member 4.
- the rear portion of the front column member 4 has the rear portion.
- the rear end 4b (end) is formed obliquely so that the end face 8c (end) of the movable gear 8 can be locked.
- the movable gear 8 has its tooth 8a disengaged from the non-tooth area 6a by the urging force of the pressing spring 11, and its end face 8c (end ) Is locked by locking to the rear end ⁇ 4 b (end) of the front column member 4.
- the rear end support seat 21 (the flip-up stopper) of the front column member 4 is provided with the front end support seat 2 of the rear column member 5.
- a cushioning member 30 is provided for buffering an impact or the like due to the abutment. At this time, the impact noise caused by the contact between the stoppers 21 and 22 can be prevented by the buffer member 30.
- the other configuration, operation, and the like are the same as those in the first embodiment.
- FIG. 6 is a longitudinal sectional view of a vehicle chill ten-adjustment type steering device according to a third embodiment of the present invention, in which a rear column member is flipped up by a large angle beyond a driving tilt adjustment range. Is shown.
- the front end face 8c of the movable gear 8 is engaged with the rear edge 6c of the fixed gear 6 when the large-angle flip-up is performed
- One or two teeth are formed at the rear end 6 d of the non-tooth part area 6 b of the fixed gear 6, and when the large gear is flipped up, the movable gear 8 is formed at the rear end 6 d of the fixed gear 6.
- the movable gear 8 is moved by the urging force of the pressing panel 11 so that one or two teeth at the front end thereof are located behind the non-teeth part area 6 of the fixed gear 6. Engage and lock with one or two teeth at end 6d. Therefore, even if the driver or the like hangs, the steering wheel can be securely held so as not to move at that position.
- the rear end support seat 21 (the flip-up stopper) of the front column member 4 is provided with the front end support seat 2 of the rear column member 5.
- a cushioning member 30 is provided for buffering an impact or the like due to the abutment. At this time, the buffer member 30 can prevent the striking sound due to the contact between the stoppers 21 and 22.
- the other configuration, operation, and the like are the same as those in the first embodiment.
- the present invention is not limited to the above-described embodiment, and can be variously modified.
- the present invention describes the case where the steering wheel is flipped up by a large angle in the tilt type, but the present invention is also applicable to the case where the steering wheel is flipped up by a large angle in the tilt-telescopic type.
- the fixed gear may be attached to the rear column member, and the movable gear may be attached to the front column member.
- the center line of the tension spring is substantially parallel to the axis of the steering shaft, and passes through the center of the tilt or a side near the tilt center.
- the tension spring for large-angle jumping does not exhibit a natural tension, and the center line is tilted only when the large-angle jumping is performed.
- the rear column member can be elastically pulled and held. Therefore, when the steering wheel is flipped up by a large angle, the steering wheel can be reliably held at that position.
- the movable gear when the rear column member is flipped up by a large angle, the movable gear is locked by locking its end face to the end face of the fixed gear by the urging force.
- the steering wheel can reliably hold the steering wheel so that it does not move at that position even if a heavy load is applied so that the driver or the like hangs.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/469,009 US7069809B2 (en) | 2001-12-27 | 2002-12-25 | Vehicle tilt type steering device |
AU2002360018A AU2002360018A1 (en) | 2001-12-27 | 2002-12-25 | Vehicle tilt type steering device |
JP2003556280A JP3636197B2 (ja) | 2001-12-27 | 2002-12-25 | 車両用チルト式ステアリング装置 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001398473 | 2001-12-27 | ||
JP2001/398469 | 2001-12-27 | ||
JP2001398469 | 2001-12-27 | ||
JP2001/398473 | 2001-12-27 | ||
JP2002311506 | 2002-10-25 | ||
JP2002/311506 | 2002-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003055730A1 true WO2003055730A1 (fr) | 2003-07-10 |
Family
ID=27348032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/013507 WO2003055730A1 (fr) | 2001-12-27 | 2002-12-25 | Levier de direction de type a basculement de vehicule |
Country Status (5)
Country | Link |
---|---|
US (1) | US7069809B2 (ja) |
JP (1) | JP3636197B2 (ja) |
CN (1) | CN100352715C (ja) |
AU (1) | AU2002360018A1 (ja) |
WO (1) | WO2003055730A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101002671B1 (ko) | 2005-10-31 | 2010-12-20 | 주식회사 만도 | 충격 흡수 기능을 구비한 조향장치의 틸트 스프링 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4218379B2 (ja) * | 2002-07-11 | 2009-02-04 | 日本精工株式会社 | 車両用チルト式ステアリング装置 |
CN100471746C (zh) * | 2003-09-25 | 2009-03-25 | 日本精工株式会社 | 电动转向系统 |
JP4411049B2 (ja) * | 2003-10-07 | 2010-02-10 | 日本精工株式会社 | ステアリングコラム装置 |
US20060037425A1 (en) * | 2004-08-17 | 2006-02-23 | Trw Automotive U.S. Llc | Shaft assembly for use in steering systems |
US7810409B2 (en) * | 2005-05-06 | 2010-10-12 | Nsk Ltd. | Steering column apparatus |
KR100884069B1 (ko) * | 2006-11-21 | 2009-02-19 | 현대자동차주식회사 | 자동차의 스티어링 컬럼 |
US8327734B2 (en) * | 2006-11-21 | 2012-12-11 | Hyundai Motor Company | Steering column of vehicle |
US7770487B2 (en) * | 2007-03-30 | 2010-08-10 | Nissan Technical Center North America, Inc. | Vehicle steering column structure |
US7823479B2 (en) * | 2007-03-30 | 2010-11-02 | Nissan Technical Center North America, Inc. | Vehicle steering column structure |
US7806619B2 (en) * | 2007-10-02 | 2010-10-05 | Gm Global Technology Operations, Inc. | Shaft assembly with lash free bipot joint connection |
EP2212181B1 (en) * | 2007-11-13 | 2012-07-18 | Renault Trucks | Device for adjusting the position of a steering column |
EP2660124A1 (en) * | 2012-05-01 | 2013-11-06 | Autoliv Development AB | A steering column arrangement |
US8936274B2 (en) * | 2012-05-10 | 2015-01-20 | Steering Solutions Ip Holding Corporation | Locking device for steering column |
EP3313711B1 (en) * | 2015-06-26 | 2019-04-24 | Kongsberg Power Products Systems AB | Steering column for a vehicle |
CN107926163B (zh) * | 2017-11-30 | 2023-10-03 | 重庆秉立锦为科技有限公司 | 一种微耕机刀座承力抵杆 |
CN109023909B (zh) * | 2018-10-26 | 2024-03-12 | 应城市天润产业用布有限责任公司 | 一种切边自锁装置 |
CN111301512B (zh) * | 2020-03-30 | 2021-05-25 | 北京汽车股份有限公司 | 转向管柱的调节装置、转向管柱的调节方法和车辆 |
CN114179901B (zh) * | 2021-12-31 | 2022-09-09 | 坤泰车辆系统(常州)有限公司 | 一种可实现方向盘大角度调节的转向管柱及其调节方法 |
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2002
- 2002-12-25 AU AU2002360018A patent/AU2002360018A1/en not_active Abandoned
- 2002-12-25 CN CNB028072278A patent/CN100352715C/zh not_active Expired - Fee Related
- 2002-12-25 WO PCT/JP2002/013507 patent/WO2003055730A1/ja active Application Filing
- 2002-12-25 US US10/469,009 patent/US7069809B2/en not_active Expired - Fee Related
- 2002-12-25 JP JP2003556280A patent/JP3636197B2/ja not_active Expired - Fee Related
Patent Citations (9)
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JPS59146267U (ja) * | 1983-03-22 | 1984-09-29 | 富士機工株式会社 | ステアリングコラムのチルト装置 |
JPS60179575U (ja) * | 1984-05-10 | 1985-11-28 | 富士機工株式会社 | ステアリングコラムのチルト装置 |
JPS62110566A (ja) * | 1985-11-09 | 1987-05-21 | Mitsubishi Motors Corp | 自動ホツプアツプステアリング装置 |
JPS6351868U (ja) * | 1986-09-24 | 1988-04-07 | ||
JPH05319277A (ja) * | 1992-05-20 | 1993-12-03 | Koyo Seiko Co Ltd | チルトステアリング装置 |
JPH061107U (ja) * | 1992-06-12 | 1994-01-11 | 光洋精工株式会社 | チルトステアリング機構 |
JPH11198821A (ja) * | 1997-11-13 | 1999-07-27 | Nippon Seiko Kk | チルト式ステアリング装置 |
JP2000255435A (ja) * | 1999-03-04 | 2000-09-19 | Nsk Ltd | チルト式ステアリング装置 |
JP2000272524A (ja) * | 1999-03-29 | 2000-10-03 | Nsk Ltd | チルト式ステアリング装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101002671B1 (ko) | 2005-10-31 | 2010-12-20 | 주식회사 만도 | 충격 흡수 기능을 구비한 조향장치의 틸트 스프링 |
Also Published As
Publication number | Publication date |
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AU2002360018A1 (en) | 2003-07-15 |
US7069809B2 (en) | 2006-07-04 |
CN1547537A (zh) | 2004-11-17 |
JP3636197B2 (ja) | 2005-04-06 |
CN100352715C (zh) | 2007-12-05 |
JPWO2003055730A1 (ja) | 2005-05-12 |
US20040237695A1 (en) | 2004-12-02 |
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