WO2003086825A1 - Dispositif de securite destine au levage d'une partie du capot d'un vehicule a moteur - Google Patents

Dispositif de securite destine au levage d'une partie du capot d'un vehicule a moteur Download PDF

Info

Publication number
WO2003086825A1
WO2003086825A1 PCT/SE2003/000537 SE0300537W WO03086825A1 WO 2003086825 A1 WO2003086825 A1 WO 2003086825A1 SE 0300537 W SE0300537 W SE 0300537W WO 03086825 A1 WO03086825 A1 WO 03086825A1
Authority
WO
WIPO (PCT)
Prior art keywords
bonnet
hood
housing
sleeve
safety device
Prior art date
Application number
PCT/SE2003/000537
Other languages
English (en)
Inventor
Heath Knight-Newbury
John Macari
Original Assignee
Autoliv Development Ab
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 Autoliv Development Ab filed Critical Autoliv Development Ab
Priority to AU2003225451A priority Critical patent/AU2003225451A1/en
Publication of WO2003086825A1 publication Critical patent/WO2003086825A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R21/38—Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • F15B15/103—Characterised by the construction of the motor unit the motor being of diaphragm type using inflatable bodies that contract when fluid pressure is applied, e.g. pneumatic artificial muscles or McKibben-type actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/19—Pyrotechnical actuators

Definitions

  • THE PRESENT INVENTION relates to a safety device, and more particularly relates to a safety device to be mounted on a vehicle to provide protection for a pedestrian struck by the vehicle in an accident situation.
  • a pedestrian If a pedestrian is struck by a vehicle in an accident situation, the pedestrian may be thrown in such a way that the head or torso of the pedestrian impacts with the hood or bonnet of the motor vehicle.
  • the hood or bonnet of the motor vehicle may deform as a consequence of such impact, but, if the hood or bonnet is closed, the hood or bonnet may only deform by a very short distance before the underside of the hood or bonnet will engage with part of the engine located under the hood or bonnet.
  • the present invention relates to a safety device of the type intended to lift a hood or bonnet in response to an accident situation involving an impact with a pedestrian.
  • a safety device for lifting part of the hood or bonnet of a motor vehicle, the safety device comprising a rupturable housing, the rupturable housing sealingly enclosing an inflatable sleeve, the housing being adapted to rupture on inflation of the sleeve to permit the sleeve to emerge from the housing.
  • the sleeve is provided with an upper end cap.
  • the upper end cap is provided with a barbed prong adapted to engage a recess or 'socket' provided on a hood or bonnet.
  • the end cap forms the upper part of the housing.
  • the cap is provided with a peripheral inclined region, the peripheral inclined region engaging correspondingly inclined under-surface of an inwardly directed lip provided on part of the housing.
  • the housing is provided with one or more lines of weakness to define regions where the housing will rupture on inflation of the inflatable sleeve.
  • two radially outwardly extending projections are provided on opposite sides of a line of weakness, the projections being apertured to receive the core of a Bowden cable, the arrangement being such that the projections will move apart on inflation of the sleeve.
  • the inflatable sleeve is formed of fabric.
  • the housing is formed of a plastics material.
  • the housing is mounted within a motor vehicle beneath part of the hood or bonnet.
  • the housing is located beneath a rear part of the hood or bonnet, the rear part of the hood or bonnet being hingedly connected to the main part of the vehicle by a hinge arrangement, the hinge arrangement having part thereof initially fast with the hood or bonnet, but provided with a release mechanism to enable the part of the hinge initially fast with the hood or bonnet to effect at least a pivoting motion relative to the hood or bonnet on deployment of the safety device.
  • the hinge comprises a hinge arm, one end of which is pivotally connected to said main part of the motor vehicle, the other end of which is associated with a bracket connected to the under-side of the hood or bonnet, the bracket having a stud receivable within an elongate slot formed within the hinge arm, the bracket having a releasable catch constituting said release mechanism and operable to retain the said part of the hinge arm fast with the bracket, and to release that part of the hinge arm to permit a pivotal movement between that part of the hinge arm and the stud, and to permit movement of the stud along the elongate slot.
  • FIGURE 1 is a respective view of a canister containing an inflatable sleeve to form part of a safety device in a motor vehicle
  • FIGURE 2 is a sectional view through the upper part of the canister of
  • FIGURE 3 is a view of the canister of Figure 1 illustrating the canister when the safety device is being deployed
  • FIGURE 4 is a perspective view of a hinge structure
  • FIGURE 5 is a diagrammatic side view of part of a motor vehicle incorporating a safety device which includes the canister of Figure 1 and the hinge structure of Figure 4 in an ordinary condition, and
  • FIGURE 6 is a view corresponding to Figure 5 illustrating the safety device in the deployed condition.
  • a canister 1 comprises a generally cylindrical housing 2 formed, for example, of a plastics material.
  • the cylindrical housing 2 has at least one line of mechanical weakness 3 formed in the side wall thereof, the preferred arrangement of lines of mechanical weakness comprising three lines of mechanical weakness 3, 4, 5, which have a generally inverted ' ⁇ '-shaped configuration, with the line of weakness 3 extending vertically towards the very top of the side-wall of the housing.
  • an inner rim 8 At the upper part of the side- wall of the housing 2, as shown in Figure 2, there is provided an inner rim 8, the inner rim 8 having an inwardly inclined under-surface 9.
  • a fabric sleeve 10 Contained within the canister is a fabric sleeve 10.
  • the sleeve 10 is, in the described embodiment, initially folded in a "concertina” manner.
  • the upper-most part of the sleeve 10, contained within the canister 1, is provided with an upper cap 11.
  • the upper cap 11 has a central planar region 12 which carries an upwardly extending barbed prong 13.
  • Surrounding the planar region 12 is a downwardly inclined peripheral annular region 14, the outer-most peripheral part of which firmly abuts and engages the inclined under-surface 9 of the rim 8 provided on the side-wall of the housing 2.
  • the cap 11 may be secured to the upper part of the fabric sleeve 10 by means of a mounting plate 15 provided within the te ⁇ mnal part of the sleeve 10 which is secured to the cap 11 by means of a screw 16.
  • a pyrotechnic charge is provided within the canister adapted to inflate the sleeve 10.
  • the lower part of the canister may be provided with a bayonet mounting which can be used to mount the canister in position (as will be described hereinafter) and also to provide electrical contacts to an ignition squib provided witriin the pyrotechnic charge which is to inflate the sleeve 10.
  • a Bowden cable 17 may be associated with the canister.
  • the inner core 18 of the cable will pass through the co-aligned apertures formed in the radially outwardly directed lugs 6 and 7.
  • the sleeve parts 19, 20 of the cable will abut against the exterior parts of the lugs 6 and 7.
  • the pyrotechnic charge associated with the sleeve 10 will be ignited, and gas will be injected into the sleeve 10.
  • the sleeve 10 will thus begin to expand.
  • the expansion of the sleeve 10 will cause the housing 2 of the canister 1 to rupture along the lines of mechanical weakness.
  • This mpturing may be assisted by a generally upward force applied to the cap 11 which will cause the inclined peripheral portion 14 of the cap 11 to exert a force on the under-surface 9 of the rim 8 tending to cause the side-walls of the cylindrical housing 2 to distend outwardly, thus splitting the side-wall of the housing 2 along the line of mechanical weakness.
  • the hinge assembly comprises a mounting bracket 20 which incorporates a rectangular planar plate 21 provided with two spaced-apart mounting apertures 22, 23.
  • the planar plate is adapted to be mounted to the under-side of a hood or bonnet by screws or the like passing through the two mounting apertures 22, 23.
  • the lugs 24, 25 extend above and protrude beyond a depending wall 26 which depends from the said long side edge.
  • a "T"-headed stud 27 extends perpendicularly from the depending wall 26 adjacent one end thereof, and a pivot 28 extends perpendicularly from the wall 26 adjacent the other end thereof.
  • the pivot 28 pivotally supports a rotatable catch element 29 which forms part of a release mechanism.
  • the catch element 29 has a first radially extending arm 30 and a second radially extending retainer arm 31.
  • the first arm 30 is connected to the core 18 of the Bowden cable 17.
  • the retainer arm 31 serves to retain part of hinge assembly in position, as will be described below.
  • Beneath the catch 30 is a horizontally protruding lug 32 which extends horizontally from the lower edge of the depending wall 26.
  • the lug 32 is provided with a recess 33 in one side edge thereof.
  • the recess 33 is dimensioned so that the core 18 of the Bowden cable may pass through the recess, whilst the sleeve 19 of the Bowden cable engages the lug adjacent the recess. Tension applied to the core 18 of the Bowden cable will cause the catch 29 to rotate.
  • a hinge arm 34 is provided, the hinge arm having a first linear portion 35 which lies adjacent the depending plate 21.
  • a substantially linear or straight upper edge 36 of the linear 35 engages the under-surface of each. of the lugs 24, 25.
  • At one end of the linear part 35 there is an inclined extension 37 of the hinge arm, the extension 37 having an oval slot 38 therein.
  • the "T"- headed stud 27 passes through the slot 38.
  • the stem of the stud is dimensioned to slide along the slot.
  • the linear portion 35 of the hinge arm 34 is connected to an elongate arcuate portion 40 of the hinge arm which terminates with a mounting aperture 41.
  • FIG. 5 shows the hood or bonnet 42 of the motor vehicle, which is mounted in position in front of the windscreen or windshield 43.
  • the forward-most end of the hood or bonnet is provided with a releasable catch 44, of conventional design, to release the hood or bonnet to provide access to the engine space beneath the hood or bonnet.
  • the mounting plate 20 of a hinge assembly as shown in Figure 4 is mounted to the under-side of the hood or bonnet, and the arcuate portion 40 of the hinge arm 34 is connected, by means of the aperture 41, to a pivotal mounting point 45 located on the main part of the motor vehicle adjacent the base of the windscreen 43.
  • Two hinge assemblies will be provided, one on each side of the vehicle.
  • a recess or 'socket' 46 is provided on the underside of the hood or bonnet above the canister 1 to receive the barbed prong 13 when the safety device is deployed.
  • the free end of the Bowden cable 17 may be connected to an actuating lever provided on the interior of the motor vehicle or, alternatively, may be mounted to a fixed point.
  • a canister 1, as described above, is mounted in position beneath part of the hood or bonnet adjacent the horizontal plate 21 of each bracket 20, being mounted in position appropriately, for example, by the described bayonet connection, on a firm or immovable part 47 of the motor vehicle.
  • the barbed prong 13 is located beneath the recess or 'socket' 46.
  • the hood or bonnet may be opened in the normal way by releasing the conventional catch 44 provided at the front of the hood or bonnet 42, and then lifting the forward-most edge of the hood or bonnet.
  • the hood or bonnet will pivot about the pivotal mounting 45.
  • the linear portion 35 of the hinge arm 34 will remain fast with the bracket 20, because it will be retained in this condition by a combination of the "T"-headed stud 27 at one end of the elongate slot 38, and the retaining arm 31 of the catch 29.
  • each housing 2 will rupture, permitting the sleeve 10 to expand.
  • the cap 11 will move upwardly and the barbed prong 13 present on the cap 12 will move upwardly and engage the recess or 'socket' 46, and the action of the barbed prong 13 will prevent the end cap 11 from subsequently becoming disengaged from the recess or 'socket' 46.
  • the sleeves 10 will extend upwardly, thus forcing the rearward part of the hood or bonnet upwardly.
  • the hood or bonnet will then pivot about the conventional catch 44 provided at the front of the hood or bonnet.
  • the hinge arm 34 of each hinge will pivot about the pivot axis 45, and the "T"-headed stud 27 will slide along the elongate slot 38.
  • the "T"-headed stud 27 reaches the other end of the elongate slot 38, further upward movement of the hood or bonnet will be prevented.
  • the sleeve 10 is formed of a fabric material.
  • the fabric material may be utilised because the canister 1 is initially substantially sealed to sealingly enclose the sleeve. This will prevent the ingress of any oil or dirt, which might cause deterioration of the fabric of the sleeve.
  • the canister as described, is fabricated of a plastics material, but is to be appreciated that the canister could be manufactured from an appropriate metal. Whilst one form of canister has been illustrated, the canister may be of many different designs.
  • the canister may complete encapsulate the combination of the inflatable sleeve and the end cap of the sleeve, although it is preferred that, effectively, the end cap of the sleeve should form the end cap of the canister, since this minimises the use of raw material.
  • the canister is constituted by a combination of the top cap, a base plate and an annular ring which serves sealingly to interconnect the top cap and the base plate, whilst sealing the inflatable sleeve within the canister.
  • the annular ring may be provided with a line of mechanical weakness and be formed of a material such as plastics or metal, or, alternatively, the ring may be formed of a frangible material adapted simply to break in response to inflation of the sleeve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Superstructure Of Vehicle (AREA)

Abstract

L'invention concerne un dispositif de sécurité destiné au levage d'une partie du capot d'un véhicule à moteur comprenant un boîtier pouvant être rompu (2), ce boîtier renfermant de façon étanche un manchon gonflable (10). Le boîtier est conçu de manière à rompre lors du gonflage du manchon en vue de permettre au manchon d'émerger du boîtier. Dans l'un des modes de réalisation, le boîtier comprend deux oreilles de fixation saillantes (6, 7) définissant des ouvertures. Le coeur (18) d'un câble Bowden (17) passe à travers des ouvertures et les manchons extérieurs (19, 20) du câble Bowden se mettent en prise avec les parties extérieures des oreilles de fixation. Lors du gonflage du manchon (10), les oreilles de fixation se déplacent en appliquant une tension au coeur du câble Bowden.
PCT/SE2003/000537 2002-04-17 2003-04-04 Dispositif de securite destine au levage d'une partie du capot d'un vehicule a moteur WO2003086825A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003225451A AU2003225451A1 (en) 2002-04-17 2003-04-04 A safety device for lifting a part of the hood or bonnet of a motor vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0208799A GB2387578A (en) 2002-04-17 2002-04-17 Impact responsive means for raising a vehicle bonnet
GB0208799.7 2002-04-17

Publications (1)

Publication Number Publication Date
WO2003086825A1 true WO2003086825A1 (fr) 2003-10-23

Family

ID=9935009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/000537 WO2003086825A1 (fr) 2002-04-17 2003-04-04 Dispositif de securite destine au levage d'une partie du capot d'un vehicule a moteur

Country Status (3)

Country Link
AU (1) AU2003225451A1 (fr)
GB (1) GB2387578A (fr)
WO (1) WO2003086825A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395693A (en) 2002-11-28 2004-06-02 Autoliv Dev A motor vehicle bonnet lifting device
GB2400353A (en) 2003-04-09 2004-10-13 Autoliv Dev Pedestrian detecting system provided on a motor vehicle
US7195090B2 (en) 2004-08-16 2007-03-27 Autoliv Asp, Inc. Vehicle hood latch release system for improved pedestrian protection
DE102015109128B3 (de) * 2015-04-10 2016-07-21 KINEMATIXX GmbH Frontklappenscharnier mit drehbeweglichem Entriegelungsmechanismus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2711338A1 (de) * 1977-03-16 1978-09-28 Hermann Prof Dr Ing Appel Kraftfahrzeug mit einrichtungen zum daempfen des aufpralls eines fussgaengers
EP0967128A2 (fr) * 1998-06-26 1999-12-29 Nissan Motor Co., Ltd. Dispositif pour atténuer le choc sur un piéton lors d'une collision avec un véhicule automobile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344080A (en) * 1998-11-27 2000-05-31 Brian Michael Temple Device for reducing the damage to a person or animal struck by the front end of a vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2711338A1 (de) * 1977-03-16 1978-09-28 Hermann Prof Dr Ing Appel Kraftfahrzeug mit einrichtungen zum daempfen des aufpralls eines fussgaengers
EP0967128A2 (fr) * 1998-06-26 1999-12-29 Nissan Motor Co., Ltd. Dispositif pour atténuer le choc sur un piéton lors d'une collision avec un véhicule automobile

Also Published As

Publication number Publication date
AU2003225451A1 (en) 2003-10-27
GB0208799D0 (en) 2002-05-29
GB2387578A (en) 2003-10-22

Similar Documents

Publication Publication Date Title
EP1494895B1 (fr) Dispositif de securite permettant de lever la partie arriere du capot d'un vehicule a moteur
EP1323597B1 (fr) Capot muni d'un dispositif d'absorbtion d'énergie en cas de collision avec un corps étranger
US7246677B2 (en) Safety arrangement for a vehicle
US7150495B2 (en) Use of a fender and a hood in combination with an air bag, fender retaining and support means, a fender, a fender module, and a hood for a motor vehicle
EP1270339B1 (fr) Système de protection de passager de véhicule
KR20020088186A (ko) 자동차의 후드 힌지구조
JP2007112183A (ja) 車外用エアバッグ装置
GB2387577A (en) Impact responsive means for raising a vehicle bonnet
JP2006505440A (ja) フード、特にエンジンフードを車体に連結するためのヒンジ
JPH05208649A (ja) 助手席用エアバッグ装置におけるケースとドアとの連結構造
JP2004322724A (ja) 歩行者等の保護装置
WO2003086825A1 (fr) Dispositif de securite destine au levage d'une partie du capot d'un vehicule a moteur
JP4476074B2 (ja) 歩行者等保護用エアバッグ装置
JPH02171381A (ja) ステアリングホイール
CN110745095B (zh) 发动机罩装置及车辆
KR102529500B1 (ko) 무릎 가변 보호구조
KR100410844B1 (ko) 자동차의 커튼 에어백 장치
KR100945075B1 (ko) 에어백이 장착된 차량용 도어 암레스트.
JPH06107100A (ja) エアバッグ装置
KR200149177Y1 (ko) 자동차용 에어백의 모듈구조
KR19990001439U (ko) 차량 추돌시의 운전석 후퇴장치
JP2006182328A (ja) 歩行者等保護装置
KR20050054256A (ko) 커튼 에어백이 구비된 자동차의 헤드라이닝 구조
JPH04339048A (ja) エアバッグリッドの取付構造
KR19980040454U (ko) 자동차의 스티어링 칼럼 강제 틸트 업 방지장치

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 BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE 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 NO NZ PL PT RO RU SD SE SG SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ 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 IT LU MC NL 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
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP