WO2005068265A1 - 腰部拘束装置 - Google Patents
腰部拘束装置 Download PDFInfo
- Publication number
- WO2005068265A1 WO2005068265A1 PCT/JP2005/000241 JP2005000241W WO2005068265A1 WO 2005068265 A1 WO2005068265 A1 WO 2005068265A1 JP 2005000241 W JP2005000241 W JP 2005000241W WO 2005068265 A1 WO2005068265 A1 WO 2005068265A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inflator
- restraint device
- bag
- inflator bag
- bracket
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
- B60N2/42718—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure with anti-submarining systems
Definitions
- the present invention restrains the waist (pelvis) of a seated occupant during a frontal collision of a vehicle, for example.
- the present invention relates to a lumbar restraint device for preventing an occupant from moving forward (sliding out) and protecting the occupant.
- This waist restraint device includes a device provided on the instrument panel side as proposed in Patent Documents 1 and 2, a device provided on the seat side proposed in Patent Document 3, and the like.
- Patent Document 1 Japanese Unexamined Patent Publication No. 8-40177
- Patent Document 2 Japanese Unexamined Patent Publication No. 9-1123857
- Patent Document 3 Japanese Patent Application Laid-Open No. 2002-302002
- the waist restraint device provided on the seat side is advantageous in that it prevents the occupant from sliding out from the beginning. Therefore, in recent years, there have been many proposals to provide a seat cushion with a waist restraint device.
- This type of waist restraint device raises the front side of a seating surface of a seat cushion at the time of a collision. Conventionally, however, the lifting is performed through a link mechanism, which makes the mechanism mechanically complicated.
- the problem to be solved by the present invention is that in the conventional lumbar restraint device using the inflator bag, it is not possible to reliably restrain the occupant's lumbar portion because the deployment position of the inflator bag is not reliable. is there.
- the waist restraint device of the present invention has been made from such a viewpoint.
- the most main feature of the inflator bag is that it has a position restricting body for defining a deployed position of the inflator bag when the inflator bag is inflated and deployed.
- the inflator bag is inflated and deployed by the high-pressure gas ejected from the inflator.
- the predetermined position of the seating surface of the seat cushion is reliably raised by defining the deployment position of the position restraint force s inflator bag. The upward movement prevents the occupant from moving forward, and the lumbar region is reliably restrained.
- the inflator bag is a metal bellows
- a tough, well-sealed bag with a simple configuration can be obtained. Therefore, a small-sized micro gas generator (hereinafter, referred to as MGG) that can eject powerful high-pressure gas can be used as the inflator, which can contribute to cost reduction and downsizing of the entire device.
- MGG micro gas generator
- the first of the position restraints in the waist restraint device of the present invention is:
- a front plate that is rotatably attached to the front end of the bracket and that stands on the front side of the bracket when the inflator bag is inflated and deployed;
- a cover plate is provided to stand up and cover the upper part of the front plate.
- the inflator bag can be smoothly expanded and deployed without resistance.
- a stopper is provided at or near the front end of the cover plate to limit the rotation range of the front plate and the cover plate, so that the front end of the upright front plate can be locked so as to prevent a collision. At this time, it is possible to reliably form the position restricting body having a predetermined size.
- the second of the position restraints in the waist restraint device of the present invention is:
- It is configured to include a strap for connecting the top plate and the seat.
- the deployed position of the inflator bag can be reliably defined by the strap. Therefore, the predetermined position (front side) of the seating surface of the seat cushion is reliably raised.
- the deployed position of the inflator bag can be reliably defined at the time of a vehicle collision, so that the waist of a seated occupant can be effectively restrained.
- FIG. 1 is a perspective view showing an external configuration of a lumbar restraint device according to a first embodiment of the present invention when it is deployed.
- FIG. 2 is a perspective view showing an external configuration of the waist restraint device before deployment.
- FIG. 3 is an explanatory sectional view showing the operation of the lower back restraint device.
- FIG. 4 is a perspective view showing an external configuration of a lumbar restraint device according to a second embodiment of the present invention when it is deployed. It is.
- Garden 5 is a side view showing an appearance configuration of a lumbar restraint device according to a third embodiment of the present invention when it is deployed.
- FIG. 7 is a schematic explanatory view in a case where inflator bags having different configurations are used in the waist restraint device.
- the present invention has achieved the purpose of reliably fulfilling the function of restraining the occupant's waist by using a position restraint body.
- FIGS. 1 and 3 are views showing a waist restraint apparatus according to a first embodiment of the present invention.
- FIG. 1 is a perspective view showing an external configuration when deployed
- FIG. 2 is a perspective view showing an external configuration before deployment.
- Figure 3 shows the operation FIG.
- the waist restraint device A includes a bracket 1, a front plate 2 whose base end is rotatably attached to a front end la of the bracket 1, and a bracket 1.
- a cover plate 3 whose base end is rotatably attached to the rear end 1b is provided.
- the bracket 1 is formed of a metal plate having a gentle cross section and is supported at its front and rear ends la and lb by a frame of a vehicle seat cushion (not shown) via a support shaft 4 and the like.
- a cylindrical portion lc is provided, for example, penetrating the bracket 1.
- an extensible inflator bag 5 made of a metal bellows is accommodated in the cylindrical portion lc.
- an inflator 6 for jetting high-pressure gas at the time of collision is installed in the cylindrical portion lc immediately below the inflator bag 5.
- MGG is adopted as the inflator 6, and in the event of a collision, the impact is sensed by a sensor or the like, and high-pressure gas is ejected.
- the inflator bag 5 is inflated and deployed by the high-pressure gas ejected from the inflator 6.
- the front plate 2 is made of, for example, a sine-curved metal plate, and is rotatably mounted as described above via a hinge shaft 7 attached to the front end la of the bracket 1.
- the cover plate 3 is made of a metal plate having a substantially mountain-shaped cross section, and is rotatably attached as described above via the hinge shaft 8 attached to the rear end lb of the bracket 1.
- a stopper 9 having a substantially L-shaped cross section is attached to the back surface of the front end portion 3a of the cover plate 3.
- the front plate 2 and the cover plate 3 stand up due to inflation and deployment of the inflator bag 5 at the time of collision.
- the front end 2a of the front plate 2 comes into contact with the stopper 9 and is locked, so that the rotation range of the front plate 2 and the cover plate 3 is limited.
- the bracket 1, the front plate 2 and the cover plate 3 standing up and down before and after the bracket 1 form the triangular position restricting body 10 in a side view.
- front plate 2 is stacked on bracket 1 as shown in FIG. Further, the cover plate 3 is stacked so as to cover the front plate 2.
- the waist restraint device A is installed in the front part in the seat cushion in the state described above. Then, at the time of collision, the impact is sensed and the inflator 6 reacts to generate high-pressure gas.
- the inflator bag 5 is inflated and deployed by the high-pressure gas, so that the front plate 2 is pushed up first, and then the cover plate 3 is pushed up.
- the front sides of the front plate 2 and the cover plate 3 are each opened outward and stand up.
- the tip 2a of the front plate 2 comes into contact with the stopper 9 attached to the cover plate 3, and the front plate 2 and the cover plate 3 are mutually locked by the stopper 9.
- the bracket 1, the front plate 2, and the cover plate 3 form the position restricting body 10 that raises the seat surface at a predetermined position of the seat cushion.
- the position restraint body 10 restrains the waist 11 of the occupant sitting on the seat cushion, and prevents the occupant from moving forward, thereby ensuring safety.
- 12 indicates a hip bone
- 13 indicates a hip point.
- the position restraint body 10 in the large space formed by inflation and deployment of the inflator bag 5 lifts the seat surface at a predetermined position of the seat cushion to restrain the occupant's lumbar portion 11. Therefore, a small inflator 6 such as a small inflator bag 5 or an MGG can be used. At this time, the load energy applied from the occupant side is further absorbed by the spring cushion action of the sine force-shaped front plate 2, so that occupant safety can be improved.
- FIG. 4 shows an external configuration of the second embodiment of the present invention at the time of development (a hinge shaft for attaching the front plate and the cover plate is removed so that a part of the interior of the protruding space body can be seen.
- the waist restraint device B includes a bracket 1, a front plate 2 whose base end is rotatably attached to a front end la of the bracket 1, and a rear end lb of the bracket 1. And a cover plate 3 whose base end is rotatably mounted.
- a cylindrical portion lc is provided through the bracket 1, and an inflator bag (not shown) made of a metal bellows is accommodated in the cylindrical portion lc.
- an inflator made of MGG that blows out a small and powerful high-pressure gas in the event of a collision is installed in the cylindrical part lc directly below the inflator bag.
- the front plate 2 is formed of a saw-toothed metal plate. Also, when the inflator bag is inflated and deployed, a flat sliding surface 2b is formed in the longitudinal direction substantially in the center of the back surface of the front plate 2 which is in contact with the inflator bag. Due to this sliding surface 2b, when the front plate 2 stands up in the event of a collision, the contact resistance with the inflating bag that expands is reduced.
- the cover plate 3 has substantially the same configuration as that of the above-described embodiment, and is formed of a metal plate having a substantially mountain-shaped cross section, and a stopper 9 is provided on the back surface of the tip 3a.
- the inflator bag In the lumbar restraint device B, in the event of a collision, the inflator bag is inflated and deployed by the high-pressure gas ejected from the inflator, and pushes the respective front end portions of the front plate 2 and the cover plate 3 outward to stand up. Thus, the position constraint body 10 is formed.
- the inflator bag is inflated and deployed by contacting the sliding surface 2b of the front panel 2, so that the inflator bag does not receive resistance due to the unevenness of the front panel 2 during the deployment. That is, the inflator bag can be expanded smoothly and quickly without being attracted to the inner surface of the front plate 2.
- the front plate 2 on which the sliding surface 2b is formed retains a predetermined spring cushion effect of a saw blade shape, so that it is possible to sufficiently absorb the load energy applied from the occupant during a collision. Les ,.
- FIG. 5 and FIG. 6 are views showing a third embodiment of the present invention.
- the position restraint body 10 is formed by a top plate 14 and a strap 15.
- the top plate 14 is mounted on the upper surface of the inflator bag 5. This attachment may be performed by welding or bolting as long as the high-pressure gas ejected from the inflator does not leak when the inflator bag 5 is inflated and deployed.
- the strap 15 connects the top plate 14 and a seat.
- the strap 15 ensures that the inflator bag 5 can be inflated and deployed at a predetermined position in the event of a collision.
- reference numeral 16 denotes a locking strap anchor fixed to the seat side
- reference numeral 17 denotes a locking strap anchor fixed to, for example, both front sides of the top plate 14.
- the bracket 1 of the lumbar restraint device C is also supported by the frame of the vehicle seat cushion at its front and rear ends la and lb. The fact that the inflator is housed is the same as in the previous embodiment.
- the inflator bag 5 is inflated and deployed by the high-pressure gas ejected from the inflator.
- the strap 15 allows the inflator bag 5 to be inflated and deployed at a predetermined position.
- the front plate 2 is formed in a sine curve shape or a saw blade shape, but may be formed in a rectangular wave shape or the like.
- the bracket 1 and the cover plate 3 may have a force S indicating a substantially mountain-shaped cross section, or a gentle trapezoidal shape.
- the inflator bag 5 made of a metal bellows is used.
- the telescopic inflator bag 5 is used. May be used. Further, as long as the required strength and airtightness can be obtained, it may be made of a material other than metal.
- the inflator 6 employs the MGG, but may be a firing type or a storage gas type inflator.
- the waist restraint device of the present invention is used for a vehicle seat, but may be provided for a vehicle seat such as an aircraft or a ship other than a vehicle, and the same effect is exerted.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004006872A JP2006297957A (ja) | 2004-01-14 | 2004-01-14 | 腰部拘束装置 |
JP2004-006872 | 2004-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005068265A1 true WO2005068265A1 (ja) | 2005-07-28 |
Family
ID=34792159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/000241 WO2005068265A1 (ja) | 2004-01-14 | 2005-01-12 | 腰部拘束装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2006297957A (ja) |
WO (1) | WO2005068265A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007313935A (ja) * | 2006-05-23 | 2007-12-06 | Autoliv Development Ab | 腰部拘束装置 |
CN104470764A (zh) * | 2012-07-19 | 2015-03-25 | 丰田自动车株式会社 | 车辆用侧面安全气囊装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009035092A (ja) * | 2007-08-01 | 2009-02-19 | Autoliv Development Ab | 腰部拘束装置 |
JP2009035090A (ja) * | 2007-08-01 | 2009-02-19 | Autoliv Development Ab | 腰部拘束装置 |
US7762584B2 (en) | 2007-09-20 | 2010-07-27 | Toyoda Gosei Co., Ltd. | Actuator which has an operating pin |
JP2009119897A (ja) * | 2007-11-12 | 2009-06-04 | Autoliv Development Ab | 腰部拘束装置 |
JP2014121924A (ja) * | 2012-12-20 | 2014-07-03 | Toyota Motor Corp | 車両用乗員拘束システム |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4943932U (ja) * | 1972-07-22 | 1974-04-17 | ||
JPS5758532A (en) * | 1980-09-27 | 1982-04-08 | Ebisu Shoten:Kk | Passenger protecting apparatus for car |
JPH0221134U (ja) * | 1988-07-29 | 1990-02-13 | ||
JPH0781466A (ja) * | 1993-09-10 | 1995-03-28 | Nissan Motor Co Ltd | 乗員前方移動規制用のシート下部構造 |
JP2000335343A (ja) * | 1999-05-31 | 2000-12-05 | Isuzu Motors Ltd | 車両の衝突安全装置 |
JP2002079862A (ja) * | 2000-09-06 | 2002-03-19 | Toyoda Gosei Co Ltd | 車両用ベンチシート |
-
2004
- 2004-01-14 JP JP2004006872A patent/JP2006297957A/ja not_active Withdrawn
-
2005
- 2005-01-12 WO PCT/JP2005/000241 patent/WO2005068265A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4943932U (ja) * | 1972-07-22 | 1974-04-17 | ||
JPS5758532A (en) * | 1980-09-27 | 1982-04-08 | Ebisu Shoten:Kk | Passenger protecting apparatus for car |
JPH0221134U (ja) * | 1988-07-29 | 1990-02-13 | ||
JPH0781466A (ja) * | 1993-09-10 | 1995-03-28 | Nissan Motor Co Ltd | 乗員前方移動規制用のシート下部構造 |
JP2000335343A (ja) * | 1999-05-31 | 2000-12-05 | Isuzu Motors Ltd | 車両の衝突安全装置 |
JP2002079862A (ja) * | 2000-09-06 | 2002-03-19 | Toyoda Gosei Co Ltd | 車両用ベンチシート |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007313935A (ja) * | 2006-05-23 | 2007-12-06 | Autoliv Development Ab | 腰部拘束装置 |
CN104470764A (zh) * | 2012-07-19 | 2015-03-25 | 丰田自动车株式会社 | 车辆用侧面安全气囊装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006297957A (ja) | 2006-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3972736B2 (ja) | 乗員保護装置 | |
EP1369314B1 (en) | Occupant protection apparatus | |
KR101781387B1 (ko) | 자동차의 파 사이드 에어백 장치 | |
JP6373547B2 (ja) | 乗員拘束システム | |
US6454300B1 (en) | Air bag tether release assembly | |
TW396118B (en) | Cushion system for mobile subject | |
JP2818642B2 (ja) | 内蔵エアバッグ作動式能動ひざまくら装置 | |
JP4763762B2 (ja) | 車の搭乗者を保護するのを助ける装置 | |
JP2018167830A (ja) | 個別膨張式二段クッションエアバッグ | |
JP5781985B2 (ja) | サイドエアバッグ装置 | |
US20080129020A1 (en) | Airbag system | |
JP3431307B2 (ja) | エアバッグ装置 | |
US11440499B2 (en) | Side airbag device | |
JP2007112415A (ja) | 乗員拘束装置 | |
JPH04224438A (ja) | 自動車の衝突事故の際の乗客防護装置 | |
WO2005068265A1 (ja) | 腰部拘束装置 | |
US11912225B2 (en) | Side airbag device | |
KR20210122076A (ko) | 사이드 에어백 장치 | |
JP6496420B2 (ja) | エアバッグ装置 | |
US10308205B2 (en) | Safety restraint system with an airbag having an inflatable pelvis restraint portion and related method | |
KR102643556B1 (ko) | 에어백용 보유 지지 커버 및 차량용 에어백 장치 | |
CN114426005A (zh) | 安全气囊系统及其使用方法 | |
US20070057498A1 (en) | Airbag device | |
JP4120388B2 (ja) | 乗員脚部保護装置を有する車両 | |
JP7508638B2 (ja) | 運転席用エアバッグ装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |
|
122 | Ep: pct application non-entry in european phase |