WO1996016841A1 - Dispositif de securite a coussin gonflable monte dans le volant de commande d'un arbre de direction supporte par une colonne de direction a tronçons telescopiques et colonne de direction equipee d'un tel dispositif - Google Patents
Dispositif de securite a coussin gonflable monte dans le volant de commande d'un arbre de direction supporte par une colonne de direction a tronçons telescopiques et colonne de direction equipee d'un tel dispositif Download PDFInfo
- Publication number
- WO1996016841A1 WO1996016841A1 PCT/FR1995/001559 FR9501559W WO9616841A1 WO 1996016841 A1 WO1996016841 A1 WO 1996016841A1 FR 9501559 W FR9501559 W FR 9501559W WO 9616841 A1 WO9616841 A1 WO 9616841A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steering
- steering column
- column
- steering wheel
- sections
- Prior art date
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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
-
- 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
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
- B62D1/197—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible incorporating devices for preventing ingress of the steering column into the passengers space in case of accident
-
- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
- B60R2021/2173—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together the module or part thereof being movably mounted on the vehicle
Definitions
- the invention relates to an airbag safety device mounted in the steering wheel of a supported steering shaft and a steering column with telescopic sections.
- EP-A-477509 describes a device in which two adjustable telescopic sections of the steering column carry the support bearings of the corresponding sections of the steering shaft.
- the publication FR-A-2419204 describes a steering column whose column body is automatically movable towards a safety position under the effect of a deceleration and / or a frontal deformation undergone by the vehicle.
- Such a device allows the protection of the driver, by preventing it, in the event of a collision from being projected onto the steering wheel.
- the airbag is normally folded in the center of the steering wheel and comes to interpose in the inflated state between the driver and the fixed steering wheel.
- an exhaust system which ensures the progressive deflation of the cushion and an energy absorbing system which allows contraction of the steering column under the effect of force. thrust communicated by the driver to the steering wheel.
- the steering wheel will cause injury to the driver due to the apparent stiffness of the steering column or parasitic displacement of the steering wheel following the deformation of the front structure of the vehicle.
- the invention proposes to remedy the aforementioned drawback and relates to a safety device which preventively causes the front steering wheel to be erased.
- the invention also relates to an airbag safety device whose gas pressure neutralizes the connection of the telescopic sections of the steering column.
- the invention also relates to a safety device which preventively generates a retraction of the steering column in order to eliminate any risk of thoracic load on the occupant of the vehicle subjected to the forces of inertia generated by the sudden deceleration of the vehicle .
- the invention also relates to an airbag safety device in which the inflation pressure of the airbag is used to cause the displacement of a wall of said airbag capable of generating preventively a command to unlock the sections and a relative movement of these in the direction of a retraction of the steering wheel.
- Another subject of the invention is an airbag safety steering column whose gas pressure neutralizes a means for locking the steering column in its operating position.
- Another subject of the invention is an airbag safety steering column connected to a motor vehicle structure, the deformation of which neutralizes the means for locking the steering column in its operating position.
- Another subject of the invention is an airbag safety steering column which is locked in a service position and automatically movable to a safety position.
- the wall of the airbag carries a control means for unlocking the telescopic sections of the steering column, among which the outer section and the steering shaft carrying the steering wheel constitute an assembly mounted with axial mobility in the direction of the advancement of the vehicle, with respect to the other fixed section of said column, under the action of the reaction force exerted by the inflation of the cushion.
- the device thus produced has the advantage of ensuring the retraction of the steering wheel before the end of inflation of the cushion, the significantly larger dimensions of which allow the inertia force of the occupant of the vehicle to be absorbed during its displacement following the sudden deceleration of the vehicle.
- a retractable locking member cooperates with an actuating means of the member and rests on a support element rigidly connected to the column body, on which is exerted a thrust means mounted to bear on the support of said column body.
- the steering column thus produced has the advantage of meeting the conditions for the effectiveness of the safety devices linked to this steering column, such as the airbag for protecting the driver of the vehicle.
- FIG. 1 is a schematic representation of the front part of the passenger compartment of a vehicle equipped with the safety device in the retracted position of the steering wheel and in which the airbag is deployed.
- - Figure 2 is a schematic representation of the axial section of a steering column equipped with the device according to the invention shown in the passive position.
- - Figure 3 is a schematic representation of the axial section of the steering column shown in Figure 2, in the deployed position of the cushion following a retraction of the steering column.
- FIG. 4a is a schematic representation of the axial locking assembly of the sections of the steering column in the passive normal position of the device as shown in FIG. 2.
- FIG. 4b is a schematic representation of the axial locking assembly of the sections of the steering column in the retracted position of said sections as illustrated in FIG. 3.
- FIG. 5a is a schematic representation of an auxiliary locking device for positioning all the sections of the steering column in the passive normal position, in correspondence with the state of the safety device illustrated in FIG. 2.
- Figure 5b is a schematic representation of the device illustrated in Figure 5a in the locking position of the sections of the steering column following the operation of the device
- FIG. 6 is a schematic representation in a passive position of an alternative embodiment of the steering column according to the invention.
- FIG. 7 is a plan view of the steering column shown in FIG. 1,
- FIG. 8 is a schematic representation of the locking means of the steering column
- FIG. 9 is a schematic representation of the location of the steering column following the angular displacement thereof under the action of the pushing means.
- Figure 1 shows the front part of the passenger compartment 1 of a motor vehicle which has been opened an access door 2 for the purpose of showing the safety device according to the invention.
- This device includes a airbag 3 mounted in the steering wheel 4 intended to retain the passenger seated in a seat 5.
- FIG. 2 shows in more detail the steering wheel 4 rigidly connected by its hub 10 to the steering shaft 11.
- the latter has a front section 12 connected to a steering mechanism not shown, and a rear section 13.
- the section rear 13 is connected respectively by its front end 13a to an articulation joint 14 carried by the section 12 and by its rear end 13b to the hub 10 of the steering wheel.
- the rear section 13 is constituted as is well known by two telescopic elements 131, 132.
- the element 131 rigidly connected to the flywheel 4, is carried by a bearing 18 mounted in the inner section 20 of a telescopic steering column.
- the element 132 rigidly connected to the joint 14, is carried by a bearing 19 mounted in the outer section 21 of the steering column.
- the outer section 21 is integral with a structural element 25, such as a stiffening cross member of the passenger compartment.
- the outer section 21 is also held by an immobilizing device 26 carried by the structural element 25 and allows the conventional axial and angular adjustment of the steering column to the morphology of the passenger seated on the seat 5 as well as the ergonomic steering wheel adjustment 4.
- the center of the steering wheel is occupied by the airbag 3, the movable wall 31 of which is subjected to the inflation pressure, is interposed between the steering wheel 3 and the passenger of the vehicle.
- FIG. 2 schematically represents the actuator 33 in contact with a slide 34 mounted with axial mobility on the element 131 of the steering shaft under the effect of a displacement of the actuator 33.
- the slide 34 moves a control rod 35, the end of which has a control and actuation ramp 36 of a disengaging lock 37 of the movable 20 and fixed 21 sections of the steering column.
- the lock 37 is carried by the fixed section 21 and is engaged radially in a bore 38 of the movable section 20 as shown in FIG. 4a.
- FIG. 4b shows, on the other hand, the latch 37 in its released position consecutive to the displacement of the latter under the effect of the ramp 36. Furthermore, anti-vibration bearings 40, 41, 42 respectively guide the rod 35 and the latch 37.
- the fixed section 21 of the steering column also carries an auxiliary spring latch 45 which ensures axial positioning in contact with a bore 39, of all of the sections 20, 21, following the relative movement of said sections as well as this is shown in Figure 5b.
- a gas generator for the airbag 3 is activated.
- the wall 32 acts on the actuator 33.
- the latter moves the control rod 35 axially, the control ramp 36 actuates the disengaging lock 37.
- the lock 37 releases the section 20 of the steering column as well as the set of members which are mechanically linked to it, in particular the element 131 of the steering shaft, and the steering wheel 4.
- the section 20 is held in position by engagement of the auxiliary lock 45 in the radial bore 39 of the movable section 20.
- the lock 45 thus guarantees an increased travel distance which allows the more progressive deceleration of the occupant from headquarters 5.
- the inflation of the cushion 4 is completed following the retraction of the steering column and the steering wheel.
- FIG. 6 shows in more detail the steering wheel 101 rigidly rehé by its hub 110 to the steering shaft 111.
- the latter has:
- a front telescopic section 112 connected by an articulation joint 113 to a steering mechanism not shown
- the rear section 114 is connected respectively by its front end 114a to an articulation joint 115 carried by the section 112 and by its rear end 114b to the hub 110 of the steering wheel 101.
- the rear section 114 may also be constituted, as is well known, by two telescopic elements, the first element of which will be rigidly attached to the steering wheel and carried by a tire mounted in a body of the steering column 116.
- the second element will be rigidly connected to the articulation joint 115 and carried by a paher mounted in a telescopic coaxial part of the steering column body 116.
- the column body 116 is carried by a fixed support 117 rigidly attached to a structural element 120 such as a stiffening cross member of the passenger compartment.
- the support 117 also carries a transverse articulation axis 118 integral with the column body 116 in order to promote the angular displacement of said body around the axis 118.
- the support 117 also carries the stop 119 of an energy accumulator pushing means such as a spring 121 which thus takes support on the support 117 and which is functionally compressed between said support 117 and a support element 122 rigidly attached to the column body 116.
- an energy accumulator pushing means such as a spring 121 which thus takes support on the support 117 and which is functionally compressed between said support 117 and a support element 122 rigidly attached to the column body 116.
- the locking member can be constituted as is well known by a retractable bolt 123 under the action of a control actuator.
- the actuator is constituted by a cam 125 or 126, the direction of control of which depends on the mode of actuation of the bolt 123.
- the cam 125 is connected to a rod 127 bearing on a sliding structure 128 mounted with axial mobility on the rear section 114 of the steering shaft 111.
- the sliding structure 128 receives for this purpose the thrust of a rod 129 carried by a wall 130 of an airbag 231 whose movement, during inflation of the bag, thus also ensures the unlocking and tilting of the column of direction following the prior movement of the bolt 123 out of its abutment position on the support element 122.
- the cam 126 is connected to a rod 232 bearing on an actuation and thrust member represented by an element 133 of the crankset hey to a structure that can be deflected from the chassis of the vehicle.
- an actuation and thrust member represented by an element 133 of the crankset hey
- the bolt 123 releases the column body 116 and allows its movement with the set of organs which are mechanically linked to it under the action of the expansion of the energy storage means.
- the cam 126 then moves under similar conditions the bolt 123 for unlocking the column body 116.
- the energy stored in the spring 121 ensures the displacement of the column body 116 before the compression of the cushion by the bust of the conductor.
- the angular displacement of the body 116 of the steering column around the axis 118 also has the effect of causing the extension of the section 112 as a result of the modified spacing of the joint joints 113-115.
- the aforementioned arrangement of the steering column is of course compatible with the use of telescopic steering columns in which the axial position of the steering wheel 100 is modified by an independent triggering device.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95941145A EP0793586A1 (fr) | 1994-11-25 | 1995-11-24 | Dispositif de securite a coussin gonflable monte dans le volant de commande d'un arbre de direction supporte par une colonne de direction a tron ons telescopiques et colonne de direction equipee d'un tel dispositif |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR94/14138 | 1994-11-25 | ||
FR9414138A FR2727373B1 (fr) | 1994-11-25 | 1994-11-25 | Dispositif de securite a coussin gonflable monte dans le volant de commande d'un arbre de direction supporte par une colonne de direction a troncons telescopiques |
FR9505131 | 1995-04-28 | ||
FR95/05131 | 1995-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996016841A1 true WO1996016841A1 (fr) | 1996-06-06 |
Family
ID=26231561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/001559 WO1996016841A1 (fr) | 1994-11-25 | 1995-11-24 | Dispositif de securite a coussin gonflable monte dans le volant de commande d'un arbre de direction supporte par une colonne de direction a tronçons telescopiques et colonne de direction equipee d'un tel dispositif |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0793586A1 (fr) |
WO (1) | WO1996016841A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998010960A1 (fr) * | 1996-09-16 | 1998-03-19 | Lars Sundholm | Dispositif de suspension pour volant |
WO1998028166A3 (fr) * | 1996-12-21 | 1998-10-29 | Volkswagen Ag | Systeme de retenue monte dans le volant pour vehicule a moteur |
WO1999058389A1 (fr) * | 1998-05-11 | 1999-11-18 | Inova Gmbh Technische Entwicklungen | Colonne de direction de securite, systeme de securite pour un vehicule, vehicule equipe d'un systeme de securite et procede de securite |
US6581966B2 (en) * | 2001-01-05 | 2003-06-24 | Ford Global Technologies, Inc. | Twin axis steering wheel system |
ES2203277A1 (es) * | 2001-04-24 | 2004-04-01 | Melchor Daumal Castellón | Sistema de colapso de columnas inteligente. |
US7080855B2 (en) | 1998-05-11 | 2006-07-25 | Thyssenkrupp Presta Ag | Safety steering column, motor vehicle with a safety system and safety method |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1286037A (en) * | 1970-01-20 | 1972-08-16 | Eaton Corp | Vehicle safety apparatus |
EP0332126A2 (fr) * | 1988-03-08 | 1989-09-13 | Mazda Motor Corporation | Support d'un ensemble de direction d'un véhicule automobile |
JPH03567A (ja) * | 1989-05-30 | 1991-01-07 | Mazda Motor Corp | 自動車のステアリング支持構造 |
JPH058737A (ja) * | 1991-07-03 | 1993-01-19 | Hino Motors Ltd | 車両のステアリング装置 |
JPH05162646A (ja) * | 1991-12-11 | 1993-06-29 | Nissan Motor Co Ltd | 車両用安全装置 |
EP0564898A2 (fr) * | 1992-04-07 | 1993-10-13 | Lemfoerder Metallwaren Ag. | Colonne de direction avec un membre de sécurité, pour un véhicule à moteur équipé d'un coussin d'air gonflable |
JPH061197A (ja) * | 1992-06-19 | 1994-01-11 | Nissan Motor Co Ltd | 自動車用乗員拘束装置 |
DE4404375A1 (de) * | 1993-03-11 | 1994-09-15 | Volkswagen Ag | Lenksäulenanordnung eines Kraftfahrzeugs |
-
1995
- 1995-11-24 EP EP95941145A patent/EP0793586A1/fr not_active Withdrawn
- 1995-11-24 WO PCT/FR1995/001559 patent/WO1996016841A1/fr not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1286037A (en) * | 1970-01-20 | 1972-08-16 | Eaton Corp | Vehicle safety apparatus |
EP0332126A2 (fr) * | 1988-03-08 | 1989-09-13 | Mazda Motor Corporation | Support d'un ensemble de direction d'un véhicule automobile |
JPH03567A (ja) * | 1989-05-30 | 1991-01-07 | Mazda Motor Corp | 自動車のステアリング支持構造 |
JPH058737A (ja) * | 1991-07-03 | 1993-01-19 | Hino Motors Ltd | 車両のステアリング装置 |
JPH05162646A (ja) * | 1991-12-11 | 1993-06-29 | Nissan Motor Co Ltd | 車両用安全装置 |
EP0564898A2 (fr) * | 1992-04-07 | 1993-10-13 | Lemfoerder Metallwaren Ag. | Colonne de direction avec un membre de sécurité, pour un véhicule à moteur équipé d'un coussin d'air gonflable |
JPH061197A (ja) * | 1992-06-19 | 1994-01-11 | Nissan Motor Co Ltd | 自動車用乗員拘束装置 |
DE4404375A1 (de) * | 1993-03-11 | 1994-09-15 | Volkswagen Ag | Lenksäulenanordnung eines Kraftfahrzeugs |
Non-Patent Citations (4)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 017, no. 279 (M - 1419) 28 May 1993 (1993-05-28) * |
PATENT ABSTRACTS OF JAPAN vol. 15, no. 101 (M - 1091) 11 March 1991 (1991-03-11) * |
PATENT ABSTRACTS OF JAPAN vol. 17, no. 569 (M - 1496) 15 October 1993 (1993-10-15) * |
PATENT ABSTRACTS OF JAPAN vol. 18, no. 192 (M - 1587) 4 April 1994 (1994-04-04) * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998010960A1 (fr) * | 1996-09-16 | 1998-03-19 | Lars Sundholm | Dispositif de suspension pour volant |
WO1998028166A3 (fr) * | 1996-12-21 | 1998-10-29 | Volkswagen Ag | Systeme de retenue monte dans le volant pour vehicule a moteur |
WO1999058389A1 (fr) * | 1998-05-11 | 1999-11-18 | Inova Gmbh Technische Entwicklungen | Colonne de direction de securite, systeme de securite pour un vehicule, vehicule equipe d'un systeme de securite et procede de securite |
US7080855B2 (en) | 1998-05-11 | 2006-07-25 | Thyssenkrupp Presta Ag | Safety steering column, motor vehicle with a safety system and safety method |
US7461863B2 (en) | 1998-05-11 | 2008-12-09 | Thyssenkrupp Presta Ag | Safety steering column, motor vehicle with a safety system and safety method |
US6581966B2 (en) * | 2001-01-05 | 2003-06-24 | Ford Global Technologies, Inc. | Twin axis steering wheel system |
ES2203277A1 (es) * | 2001-04-24 | 2004-04-01 | Melchor Daumal Castellón | Sistema de colapso de columnas inteligente. |
Also Published As
Publication number | Publication date |
---|---|
EP0793586A1 (fr) | 1997-09-10 |
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