Classifications

• • 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
  • B62D21/152—Front or rear frames
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
  • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
  • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
• • 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
  • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D31/00—Superstructures for passenger vehicles
  • B62D31/003—Superstructures for passenger vehicles compact cars, e.g. city cars
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
  • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
  • B60R19/24—Arrangements for mounting bumpers on vehicles
  • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
  • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Definitions

• the present invention is directed to a chassis for a vehicle, in particular a small vehicle.
• the object of the invention is to provide a frame with good mechanical strength and good behavior in case of impact, including frontal.
• the invention relates to a chassis comprising two inner longitudinal members which extend in the longitudinal direction of the vehicle, a first energy storage device which is adapted to power a motor and which is arranged in a first delimited housing laterally by the inner spars, two outer spars which extend in the longitudinal direction of the vehicle and which are arranged on either side of the inner spars, and, in a second housing delimited by the outer spars, to the rear of the first housing, a second energy storage device which is adapted to supply the motor and / or the motor itself.
• the invention relates to a motor vehicle comprising front and rear wheels and a chassis extending at the height of the front and rear wheels, said chassis comprising two inner longitudinal members which extend in the longitudinal direction of the vehicle, a front shield which extends in the transverse direction of the vehicle and which forms the front end of the chassis, and shock absorber elements, the chassis comprises two outer longitudinal members which extend in the longitudinal direction of the vehicle which are disposed of on both sides and each supporting a front wheel and a rear wheel, the shock absorbing elements being arranged longitudinally between, on the one hand, the front end of the inner and outer side members, and, on the other hand, the front bumper.
• the multiplicity of longitudinal members allows, in case of impact, to ensure good rigidity of the chassis while employing shock absorber elements occupying a small volume.
• the invention relates to a vehicle chassis, comprising two outer longitudinal members which extend in the longitudinal direction of the vehicle, two inner longitudinal members extending in the longitudinal direction of the vehicle and arranged between the two outer longitudinal members, a front shield which extends in the transverse direction of the vehicle and which forms the front end of the frame, shock absorber elements disposed longitudinally between the front end of the longitudinal members and the front bumper.
• Figure 1 is a rear perspective view from above of a frame according to the present invention, with a front wheel and a rear wheel;
• Figure 2 is a view similar to Figure 1, the view being almost without height;
• Figure 4 is a side view corresponding to Figures 1 and 2;
• Figure 5 is a top view of Figure 2;
• FIG. 6 is an enlargement of the chassis portion at a shock absorbing member
• Figure 7 corresponds to an enlargement of Figure 5 at the front wheel, illustrating the absorption of energy during a frontal impact
• Figure 8 is a top view of a frame and a floor supported by the frame.
• Figure 9 is a side view of a vehicle according to the invention.
• a vehicle according to the present invention comprises at the height of its front wheels 1 and rear 2, a frame 3 which comprises two longitudinal members 4, 5, said outer, which extend in the longitudinal direction of the vehicle.
• the outer beams 4, 5 are formed in one piece.
• these longitudinal members 4, 5 are, seen from above, substantially rectilinear and thus extend in parallel vertical planes. These spars are in one piece and therefore extend continuously.
• the continuity of the outer beams 4, 5 allows for a simple frame having a high rigidity longitudinal shocks while preserving the flexibility of the structure.
• the outer beams 4, 5 extend substantially from one end to the other of the frame.
• Each outer spar 4, 5 supports a front wheel 1 and a rear wheel 2.
• the chassis 3 also comprises two inner longitudinal members 6, 7 which also extend in the longitudinal direction of the vehicle, the two inner longitudinal members 6, 7 being arranged between the two outer longitudinal members 4, 5.
• the inner longitudinal members 6, 7 are substantially rectilinear.
• the outer longitudinal members 4, 5 and inner 6, 7 are made in the form of tubular sections.
• the inner longitudinal members 6, 7 and 4, 5 thus have a substantially constant section over their entire length.
• this seat is fixed directly or indirectly to the inner longitudinal members 6, 7.
• the chassis 3 also comprises a main cross member 10 which extends in the transverse direction of the vehicle.
• the main transom is located between the first 8 and the second housing 9.
• the main transom 10 forms the front limit of the second housing 9, and the rear limit of the first housing 8.
• the main cross member 10 is fixed to the outer longitudinal members 4, 5 and the rear ends of the inner longitudinal members 6, 7.
• the main cross member 10 serves as a stop for the elements contained in the second housing 9, and the mechanical energy from the thrust produced by these elements is transmitted to the inner longitudinal members 6, 7 and 4, 5.
• the outer beams 4, 5 comprise a side plate 21 at their rear part, this side plate 21 forming a lateral side of the second housing 9.
• the main cross member 10 is fixed to the front ends of these side plates 21 and on the front part of these same longitudinal members 4, 5 (see Figures 1 and 2).
• the chassis 3 also comprises a front cross member 11 which extends in the transverse direction of the vehicle.
• This front cross member 11 which forms the front limit of the first housing 8.
• This front cross member 11 is attached to the inner longitudinal members 6, 7 and extends only between them. In a frontal impact, the front cross member 11 serves to stop the elements contained in the first housing 8, and the mechanical energy from the thrust produced by these elements is transmitted to the inner longitudinal members 6, 7.
• the front cross member 11 is arranged horizontally opposite the main cross member 10.
• the frame 3 also comprises a rear cross member 22 which extends in the transverse direction of the vehicle and which forms the rear limit of the second housing 9. This rear cross member 22 is attached to the outer beams 4, 5.
• the chassis 3 comprises shock absorber elements 12, 13 (here, two elements) and a front shield 14 which extends in the transverse direction and which forms the front end of the chassis 3.
• shock absorber elements 12, 13 are arranged longitudinally between, on the one hand, the front end of the inner longitudinal members 6, 7 and 4, 5, and, secondly, the front bumper 14.
• the thrusts transmitted to the inner longitudinal members 6, 7 and 4, 5 by the cross members 10, 11 are transmitted to the elements shock absorber 12, 13 which deform accordingly.
• the frame is formed of at least two frames ensuring the rigidity of the vehicle and for transmitting the kinetic energy to the shock absorber elements 12, 13 during a frontal impact in particular.
• the first inner frame is formed of the main cross member 10, inner longitudinal members 6, 7, shock absorber elements 12, 13 and the front bumper 14.
• the second frame is formed of the main cross member 10, outer side members 4, 5 , shock absorbing elements 12, 13 and the front bumper 14.
• the frame may also include a third frame formed by a rear cross member 22, the outer members 4, 5 and the main cross member 10. It will be noted that the Kinetic energy is all the better transmitted to the shock absorber elements 12, 13 that the inner and outer longitudinal members are substantially rectilinear and continuous.
• each outer spar 4, 5 carries a transverse lug 17, 18.
• the transverse lug 17, 18 protrudes outwardly from the frame relative to the outer beams 4, 5 and extends transversely to the longitudinal direction of the vehicle.
• Each transverse lug 17, 18 faces a transverse complementary lug 19, 20 which is carried by the front bumper 14.
• Each front wheel 1 is disposed longitudinally between a transverse lug 17, 18 and the corresponding transverse lug 19, 20, and is compressed by the latter when the corresponding shock absorber element 12, 13 is deformed (see Figure 7).
• shock absorber elements 12, 13 are compressed and the front wheels 1, taken in a vice, are also compressed and participate in shock absorption.
• each beam 4, 5 carries means for fixing the front wheel 1 allowing a displacement of each front wheel 1 substantially in the longitudinal direction during a frontal impact when the shock absorber elements are deformed.
• These fixing means preferably comprise a mounting by suspension triangle.
• the floor of the vehicle shown in Figures 8 and 9 is fixed on the longitudinal members 4, 5, 6, 7 and forms the upper limit of the two housing 8, 9, access to the latter being possible due to the presence of lower plates which form their lower limit.
• the floor is in fact made of several elements 25, 26, 27a, 27b, 28. These floor elements 25, 26, 27a, 27b, 28 are made from sheet metal plates formed and fixed to the longitudinal members, preferably by welding. These floor members 25, 26, 27a, 27b, 28, 29 are secured to the outer beams 4, 5 and the outer beams 6, 7, preferably by welding.
• the floor comprises in particular a central element 25 coming to cover the first housing 8 and a central element 26 coming to cover the second housing 9. These floor elements 25, 26 make it possible to receive the fastening means of the front seat and the rear seats.
• the floor has lateral floor elements 27a, 27b.
• These lateral elements 27a, 27b extend on either side of the first housing 8 and are fixed on the outer longitudinal members 4, 5.
• the outer longitudinal members 4, 5 have a slight step downward at the first 8 and the second accommodation.
• the floor side members 27a, 27b are arranged at a lower level than the central floor elements 25, 26 from covering the first 8 and the second housing 9 and thus forming a lower floor level. This arrangement makes it easier to access the vehicle.
• the lateral elements 27a, 27 have a notch 29 further facilitating accessibility to the passenger compartment of the vehicle.
• the floor also includes a front element 28 for receiving the driver's feet.
• the inner longitudinal members 6, 7 and 4, 5 are located, in height, substantially at the same level, this level corresponding to that of the axis of the wheels.
• the housings 8, 9 are preferably located at this same level.
• the present invention is not limited to the present embodiment. It could also relate to a fuel cell vehicle, the housing then being intended to receive the fuel tanks and / or the fuel cell. It could also concern a vehicle propelled by gas (eg compressed air), housing then being intended to receive the pressurized gas tanks and / or the gas engine.
• gas eg compressed air

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Body Structure For Vehicles (AREA)
• Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Applications Claiming Priority (4)

Publications (1)

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Family Applications (1)

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Family Cites Families (11)

• 2010
  • 2010-01-15 WO PCT/FR2010/050059 patent/WO2010081997A2/fr not_active Ceased
  • 2010-01-15 EP EP10706304A patent/EP2379398A2/de not_active Withdrawn

Non-Patent Citations (1)

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