WO2002002393A1 - Motor vehicle body shell designed to limit injuries inflicted to passengers' ankles in case of accident - Google Patents
Motor vehicle body shell designed to limit injuries inflicted to passengers' ankles in case of accident Download PDFInfo
- Publication number
- WO2002002393A1 WO2002002393A1 PCT/FR2001/001972 FR0101972W WO0202393A1 WO 2002002393 A1 WO2002002393 A1 WO 2002002393A1 FR 0101972 W FR0101972 W FR 0101972W WO 0202393 A1 WO0202393 A1 WO 0202393A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- floor
- box
- relative
- deck
- event
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
Definitions
- the present invention relates to a motor vehicle body designed to limit injuries to the ankles of passengers in the event of an accident.
- a motor vehicle body notably comprises a cockpit floor and a driving position apron extending forward from this floor.
- This apron is intended to receive a plate supporting various members including the pedals for controlling the running of the vehicle.
- the present invention aims to provide a motor vehicle body of the aforementioned type which makes it possible to limit the risks of occurrence of such injuries in the event of an accident.
- This object of the invention is achieved with a motor vehicle body comprising in particular a cockpit floor and a driving position apron extending forward from said floor, remarkable in that it comprises means for limit the rotation of said apron relative to said floor under the effect of a particularly frontal impact. Thanks to these characteristics, it is possible to limit the rotational movement of the feet of the passengers in the direction of their legs under the effect of the rotation of the apron in the event of a particularly frontal impact, which makes it possible to limit the risks of occurrence of injuries to ankles.
- said means comprise means for weakening the resistance of a part of said floor to shear caused by an intrusion of said apron in the event of a frontal impact in particular, - said weakening means comprise ribs formed in said floor part, said ribs are oriented substantially perpendicular to the natural deformation lines diagonally of said floor part under the effect of a particularly frontal impact,
- said weakening means comprise a zone of lesser thickness located in said part of the floor
- said weakening means comprise a relatively low Young's modulus zone located in said floor part
- the said box also comprises a front cradle
- the said means for limiting the rotation of the said apron relative to the said floor further comprises "" means for limiting the rotation of the said apron with respect to the said cradle in the event of a particularly frontal impact
- Said means for limiting the rotation of said apron relative to said cradle comprises at least one guide pin integral with said apron and at least one guide cavity integral with said front cradle, said cavity being capable of fitting onto said pin in the event of recoil said cradle under the effect of a particularly frontal impact
- said body further comprises at least one central spar extending along said floor rearward from said deck
- said means for limiting the rotation of said deck include in addition to means for allowing said spar to retreat relative to said floor under the effect of a particularly frontal impact
- the said means for allowing the retraction of the said central spar comprise a free space provided between the said barrier and the said spar
- said box also comprises a closed barrier extending at the rear of said floor, and said means for allowing the recoil of said central spar comprise a part formed in a rear zone of this spar having less resistance to normal forces
- - said body further comprises a cross member under seat and means for connecting said central spar to said cross member, and said means for allowing the recoil of said spar comprise fusible parts- formed in said connecting means
- - said body further comprises means to guide said central beam with respect to said cross member under seat in the event of a particularly frontal impact
- the said guide means comprise notches formed in the said central spar or in the said cross member under the seat so as to allow the sliding of the said spar relative to the said cross member in the event of a particularly frontal impact
- Said means for limiting the rotation of said deck relative to said floor further comprises reinforcements interposed between said floor and said deck.
- the present invention a. also relates to a motor vehicle, remarkable in that it comprises a body conforming to the above.
- Other characteristics and advantages of the present invention will appear on reading the description which follows and on examining the appended drawing, in which:
- FIG. 1 is a schematic top view of a part of the box according to the invention
- FIG. 2 is a diagrammatic side view on a larger scale of zone II of FIG. 1,
- - Figure 3 is a schematic perspective view on a larger scale of the area III of Figure 1
- - Figure 4 is a schematic view for comparing the mode of deformation of the body according to the invention in case of accident in the connection area between the floor and the deck to that of a box of the prior art.
- identical references designate identical or similar members or sets of members.
- the body 1 of the motor vehicle 2 comprises a floor 3 of the passenger compartment 4 and, extending forward
- a cockpit apron 5 (i.e. to the left of the drawing sheet), a cockpit apron 5.
- This apron is typically intended to receive a plate supporting in particular a crankset (these members not being shown) for controlling the running of the motor vehicle 2.
- the apron 5 and the bottom bracket form a partition making it possible to separate the passenger compartment 4 d 'a front compartment 7 generally intended to receive an engine (not shown) for propelling the motor vehicle 2.
- the body 1 may further comprise two front side members 9a, 9b, a front cradle 11 connected to these front side members by two cradle side members 13a, 13b, two long legs 15a, 15b, a transom of the driving position 17, a tunnel 19, two central beams 21a, 21b, two flaps 23a, 23b, a cross member under seat 24 and a bumper 27.
- the parts 25a, 25b of the floor 3 which are located between the central beams 21a, 21b, the flaps 23a, 23b and the cross member under seat 25 comprise ribs 27a, 27b oriented at an angle as shown in the figure.
- the floor 3 may include areas of reduced thickness located in the parts 25a, 25b.
- the floor 3 may include zones having a relatively low Young's modulus located in the parts 25a, 25b.
- these variants are not mutually exclusive, and one can perfectly consider combining them.
- the box according to the invention also includes guide pins 29 fixed on the deck 5 and extending in the direction of the front compartment 7, and the cradle rails 13a, 13b , which are fixed to the front side members 9a, 9b by fasteners 31, include guide cavities 33 located opposite the pins 29.
- the central beams 21a, 21b do not extend as far as the barrier 27.
- the central beams can extend to the barrier 27, and the rear parts of these beams can have less resistance to normal forces (that is to say, say efforts oriented parallel to these beams).
- the cross member under seat 24 has notches 35 through which extend the central beams 21a, 21b, and tongues 37 formed on the edges of these notches are fixed on the side members 21a, 21b by fusible means such as suitably sized welds.
- the notches and the tongues could be formed in the central beams, the cross member under seat then extending through these notches.
- reinforcements such as brackets 39 are interposed between the floor 3 and the deck 5.
- orientation of the ribs 27a, 27b is in fact substantially perpendicular to the natural deformation lines diagonally of the floor parts 25a, 25b under the effect of a particularly frontal impact.
- the cradle 11 and the cradle rails 13a, 13b recede, which has the effect of fitting the guide cavities 33 onto the guide pins 29. Furthermore, the fact that the central beams 21a, 21b do not extend as far as the barrier 27 or, as a variant, that these beams have rear parts having less resistance to normal forces, these beams can retreat by relative to the floor 3 under the effect of a shock, especially a frontal impact.
- fusible link means between the tongues 37 and the central beams 21a, 21b also allows these beams to detach from the crosspiece 25 in the event of a particularly frontal impact, which promotes the backward movement of these beams.
- notches formed in the cross-member 25 or, as a variant, in the longitudinal members 21a, 21b make it possible to guide these parts relative to one another, and thus to control their movements in the event of a collision, in particular frontal impact.
- the reinforcements 39 also contribute to obtaining this result. Thanks to these characteristics, the body according to the invention in fact makes it possible to substantially obtain a translational movement of the apron 5 towards the interior of the passenger compartment 4 in the event of a particularly frontal impact, as can be seen in FIG. 4 where we have represented:
- the translational movement of the deck 5 obtained with the body according to the invention makes it possible, after the impact, to obtain an angle ⁇ between the foot 45 and the leg 47 which is greater than the angle ⁇ 'that would be obtained with a box of the prior art in which the deck would tend to rotate relative to the floor towards the interior of the passenger compartment.
- the body of the invention thus limits the passengers' feet of rotational movement in steering their legs as a result of the rotation of the deck accident, which limits the risks of recurring ankle injuries.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002507662A JP2004502588A (en) | 2000-07-06 | 2001-06-22 | A car body designed to limit the obstacles to the passenger's ankle in the event of an accident |
EP01947583A EP1296871A1 (en) | 2000-07-06 | 2001-06-22 | Motor vehicle body shell designed to limit injuries inflicted to passengers' ankles in case of accident |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/08809 | 2000-07-06 | ||
FR0008809A FR2811282B1 (en) | 2000-07-06 | 2000-07-06 | MOTOR VEHICLE BODY DESIGNED TO LIMIT INJURIES INJURED TO PASSENGER ANKLES IN THE EVENT OF AN ACCIDENT |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002002393A1 true WO2002002393A1 (en) | 2002-01-10 |
Family
ID=8852185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/001972 WO2002002393A1 (en) | 2000-07-06 | 2001-06-22 | Motor vehicle body shell designed to limit injuries inflicted to passengers' ankles in case of accident |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1296871A1 (en) |
JP (1) | JP2004502588A (en) |
FR (1) | FR2811282B1 (en) |
WO (1) | WO2002002393A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011104042A3 (en) * | 2010-02-24 | 2011-12-01 | Robert Bosch Gmbh | Vehicle comprising a deformable passenger compartment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370438A (en) * | 1991-10-31 | 1994-12-06 | Toyota Jidosha Kabushiki Kaisha | Structural member of automobile |
US5611593A (en) * | 1994-03-16 | 1997-03-18 | Honda Giken Kogyo Kabushiki Kaisha | Automotive floor panel assembly |
US5944377A (en) * | 1996-07-30 | 1999-08-31 | Dr. Ing. H.C.F. Porsche Ag | Floor assembly for a passenger car and method of making same |
US5992921A (en) * | 1996-03-19 | 1999-11-30 | Toyota Jidosha Kabushiki Kaisha | Vehicle body structure |
EP0999118A2 (en) * | 1998-11-04 | 2000-05-10 | Ford Global Technologies, Inc. | Secondary floor assembly for a motor vehicle |
-
2000
- 2000-07-06 FR FR0008809A patent/FR2811282B1/en not_active Expired - Fee Related
-
2001
- 2001-06-22 EP EP01947583A patent/EP1296871A1/en not_active Withdrawn
- 2001-06-22 WO PCT/FR2001/001972 patent/WO2002002393A1/en not_active Application Discontinuation
- 2001-06-22 JP JP2002507662A patent/JP2004502588A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370438A (en) * | 1991-10-31 | 1994-12-06 | Toyota Jidosha Kabushiki Kaisha | Structural member of automobile |
US5611593A (en) * | 1994-03-16 | 1997-03-18 | Honda Giken Kogyo Kabushiki Kaisha | Automotive floor panel assembly |
US5992921A (en) * | 1996-03-19 | 1999-11-30 | Toyota Jidosha Kabushiki Kaisha | Vehicle body structure |
US5944377A (en) * | 1996-07-30 | 1999-08-31 | Dr. Ing. H.C.F. Porsche Ag | Floor assembly for a passenger car and method of making same |
EP0999118A2 (en) * | 1998-11-04 | 2000-05-10 | Ford Global Technologies, Inc. | Secondary floor assembly for a motor vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011104042A3 (en) * | 2010-02-24 | 2011-12-01 | Robert Bosch Gmbh | Vehicle comprising a deformable passenger compartment |
Also Published As
Publication number | Publication date |
---|---|
FR2811282A1 (en) | 2002-01-11 |
JP2004502588A (en) | 2004-01-29 |
FR2811282B1 (en) | 2002-10-31 |
EP1296871A1 (en) | 2003-04-02 |
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