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WO2015193972A1 - Châssis de véhicule - Google Patents

Châssis de véhicule Download PDF

Info

Publication number
WO2015193972A1
WO2015193972A1 PCT/JP2014/066058 JP2014066058W WO2015193972A1 WO 2015193972 A1 WO2015193972 A1 WO 2015193972A1 JP 2014066058 W JP2014066058 W JP 2014066058W WO 2015193972 A1 WO2015193972 A1 WO 2015193972A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
front wheel
side frame
stopper
diagonal
Prior art date
Application number
PCT/JP2014/066058
Other languages
English (en)
Japanese (ja)
Inventor
武見 西川
俊介 佐井
Original Assignee
日産ライトトラック株式会社
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 日産ライトトラック株式会社 filed Critical 日産ライトトラック株式会社
Priority to PCT/JP2014/066058 priority Critical patent/WO2015193972A1/fr
Publication of WO2015193972A1 publication Critical patent/WO2015193972A1/fr

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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
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members

Definitions

  • the present invention relates to a frame of a vehicle such as a truck.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 11-165651
  • the front wheel to the cabin is attached by attaching a stopper that abuts against the outer peripheral rear surface of the front wheel in the event of a vehicle collision to the outer surface of the side frame.
  • a technique that suppresses the intrusion of the image has been proposed.
  • an object of the present invention is to provide a vehicle frame in which the front wheel is less likely to enter the cabin.
  • the vehicle frame has a pair of left and right side frames extending in the front-rear direction of the vehicle, and a plurality of cross members extending in the vehicle width direction and connecting the pair of left and right side frames.
  • a protruding member that protrudes outwardly from the outer surface of the side frame is attached to a portion of the outer surface of the side frame that is positioned in front of the front wheel.
  • the front wheel can be made difficult to enter the cabin.
  • FIG. 1 and 2 show an example of a frame of a vehicle such as a pickup truck.
  • the frame 100 includes a pair of left and right side frames 120 extending in parallel with the vehicle front-rear direction and a plurality of cross members 140, 142, 144, 146, 148 extending in the vehicle width direction and connecting the pair of left and right side frames 120. 150, 152 and 154.
  • the frame 100 becomes a basic skeleton of the structure of an automobile, and an engine, a power transmission device, a suspension, and the like are attached thereto.
  • the cross members 140 to 154 of the frame 100 are respectively referred to as a first cross member 140 to an eighth cross member 154 from the front to the rear of the vehicle. Note that the number of cross members 140 to 154 is not limited to eight, but may be any other number.
  • the pair of left and right side frames 120 are made of, for example, a steel material having a cross section such as a channel shape with opposed faces open and a box shape forming a closed cross section, and has a widened portion 120A that widens from the front to the rear of the vehicle. Further, the pair of left and right side frames 120 are lowered to facilitate raising and lowering of an occupant to a cabin (not shown), and the vicinity of the axle is bent upward.
  • the cross members 140 to 154 are members for suppressing torsion of the frame 100 and parallelogram-like deformation, and also function as attachment portions for various devices mounted on the vehicle.
  • the cross members 140 to 154 are made of a steel material having a cross section such as a channel shape, an angle shape, a hat shape, or a box shape.
  • the cross members 140 to 154 are connected to the side frame 120 via brackets fixed to the side frames 120 or brackets fixed to both ends of the cross members 140 to 154, for example.
  • the side frame 120 and the cross members 140 to 154 are fixed via fasteners such as bolts and nuts, rivets, and welding.
  • reinforcement members such as reinforcement and gusset plates may be attached to the connection locations.
  • a double wishbone suspension (hereinafter abbreviated as “suspension”) 200 as shown in FIG. 3 is provided at a portion located in front of the widened portion 120A of the side frame 120, that is, a portion where the width of the side frame 120 is narrow. Is attached.
  • the suspension 200 includes an upper arm 220, a lower arm 240, a steering knuckle 260, and a shock absorber 280 to which a coil spring (not shown) is attached concentrically.
  • the upper arm 220 is made of a steel material having a substantially V shape, and a base end portion 220A of the upper arm 220 extends in the front-rear direction of the vehicle via a bearing, for example, with respect to the bracket 122 fixed to the upper portion of the side frame 120. It is mounted so that it can swing around the axis.
  • the lower arm 240 is made of a steel material having a substantially Y shape, and a base end portion 240A of the lower arm 240 is fixed to the outer surface of the side frame 120 with respect to the pair of brackets 124, for example, via a bearing in the longitudinal direction of the vehicle. It is attached so as to be able to swing around an axis extending to.
  • the steering knuckle 260 is attached between the distal end portion 220B of the upper arm 220 and the distal end portion 240B of the lower arm 240, for example, via a bearing so as to be rotatable around an axis extending in the vertical direction of the vehicle.
  • the shock absorber 280 is attached to a bracket 126 whose upper end 280A is fixed to the outer surface of the side frame 120, while its lower end 280B is attached to an intermediate portion of the lower arm 240. Then, a wheel disc (front wheel) on which a tire is assembled is attached to a knuckle spindle (not shown) of the steering knuckle 260.
  • the intermediate portion of the widened portion 120A of the side frame 120 is located behind the widened portion 120A via a pair of left and right first diagonal members 160 that extend obliquely from the front to the rear of the vehicle. It is connected to the middle part of the four cross member 146.
  • the inner side surface of the side frame 120 has a substantially L shape in a side view, and one side extending in the vertical direction extends over the entire length of the side frame 120 in the height direction.
  • the bracket 128 that extends is fastened. Both ends of a fourth cross member 146 having a flat closed cross section are fastened to the tip of the portion of the bracket 128 that extends inward in the vehicle width.
  • the first diagonal member 160 has a substantially channel-shaped (U-shaped) cross section that opens downward, and its front end 160A is fixed to the lower half of the side frame 120 and its rear end 160B. Is fastened to the upper surface of the fourth cross member 146. Accordingly, the pair of left and right first diagonal members 160 extend obliquely on the horizontal plane so that the distance gradually decreases from the front to the rear of the vehicle.
  • the lower surfaces of the side frame 120, the fourth cross member 146, and the first diagonal member 160 are made of a substantially triangular steel plate whose apexes protrude from the outside of the vehicle width toward the inside.
  • a gusset plate 130 is attached.
  • the first diagonal member 160 has a closed cross-section with the gusset plate 130 closed, and has sufficient strength against torsion, bending, compression, tension, and the like.
  • the first diagonal member 160 itself may have a closed cross section.
  • the rear end portion of the fourth cross member 146 and the portion located inward of the vehicle width from the connection position of the first cross member 160 extends obliquely from the front to the rear of the vehicle, as shown in FIG. It is connected to the inner surface of the side frame 120 via a pair of left and right second diagonal members 180.
  • the bracket 132 is attached to the lower half of the inner side surface of the side frame 120 located behind the fourth cross member 146.
  • the second diagonal member 180 has a flat closed cross section, and its front end 180A is fastened to the lower surface of the fourth cross member 146 and its rear end 180B is fastened to the bracket 132.
  • the pair of left and right second diagonal members 180 extend obliquely on the horizontal plane so that the distance gradually increases from the front to the rear of the vehicle.
  • the second diagonal member 180 is preferably located on the same horizontal plane as the first diagonal member 160 in order to improve the strength of the frame 100 and the like.
  • a plurality of beads extending in the vehicle width direction so as to connect the pair of left and right second diagonal members 180 to the lower surface of the second diagonal member 180 from the front end portion 180A to the substantially central portion thereof.
  • a gusset plate 134 made of a substantially trapezoidal steel plate having unevenness is attached.
  • a plurality of beads extending in the vehicle width direction are connected to the lower surface of the adjacent side frame 120 on the lower surface of the second diagonal member 180 from the substantially central portion to the rear end portion 180B.
  • a gusset plate 136 made of a substantially triangular steel plate is attached. Therefore, the second diagonal member 180 is connected to the fourth cross member 146 and the side frame 120 via the gusset plates 134 and 136, and is not easily buckled even if an external force acts in the axial direction, for example.
  • a stopper 300 is attached to suppress the front wheel from entering the cabin.
  • the stopper 300 protrudes outward of the vehicle width from the outer surface of the side frame 120, and abuts against the front wheel on the front surface located in front of the vehicle.
  • the front surface of the stopper 300 is, for example, a flat slope 300A extending obliquely outward from the vehicle width from the front to the rear of the vehicle in order to slide and rotate the front wheel that is inclined when the vehicle collides.
  • the stopper 300 is integrated with a mounting 138 for fixing the cabin for the purpose of reducing the number of components of the vehicle.
  • the stopper 300 can be separated from the mounting 138.
  • the stopper 300 is made of, for example, a substantially box-shaped steel material in which only a portion facing the outer side surface of the side frame 120 is opened in order to ensure strength that does not greatly deform when the vehicle collides.
  • the stopper 300 is fixed at a predetermined position on the outer surface of the side frame 120 by welding or the like. Accordingly, the stopper 300 is fixed to the outer side surface of the side frame 120, thereby forming a box shape having a closed space.
  • a reinforcing member such as reinforcement can be attached to at least one of the inner surface and the outer surface.
  • the stopper 300 can have a shape and a size such that a front wheel attached to the side frame 120 via the suspension 200 comes into contact with the vehicle when an offset collision occurs.
  • a protruding member 400 having a substantially triangular shape in a plan view is formed on the outer surface of the side frame 120 and between the first cross member 140 and the second cross member 142. Is attached.
  • the protruding member 400 protrudes outward from the outer side surface of the side frame 120, and the front surface located in front of the vehicle abuts against the object when the vehicle collides.
  • the front surface of the projecting member 400 is, for example, a flat slope 400A that extends obliquely outward from the vehicle front to the rear so that the frame 100 is pushed out by an object that has collided with the vehicle.
  • the projecting member 400 has, for example, a substantially triangular prism shape having the same height as the side frame 120 that is open only at a portion facing the outer side surface of the side frame 120 in order to ensure the strength that does not greatly deform when the vehicle collides.
  • the protruding member 400 is fixed to a predetermined position on the outer surface of the side frame 120 by welding or the like. Accordingly, the protruding member 400 is fixed to the outer surface of the side frame 120, and thus has a substantially triangular prism shape having a closed space.
  • a reinforcement member such as a reinforcement can be attached to at least one of the inner surface and the outer surface.
  • a weight reducing hole can be formed on the lower surface of the protruding member 400.
  • the protruding member 400 can be shaped and sized so that the object can push the frame 100 in the vehicle width direction when the vehicle collides with the object.
  • FIG. 9 it is assumed that the vehicle collides with an object 500 existing on the left side in the traveling direction of the vehicle.
  • the object 500 reaches and collides with the front surface of the protruding member 400 located on the left side of the vehicle as shown in FIG. 10 while deforming a bumper, a front fender (not shown), and the like.
  • the frame 100 moves to the right in the vehicle traveling direction using the component force in the vehicle width direction of the impact force that the object 500 collides with the projecting member 400. It moves with being played.
  • the impact force transmitted from the protruding member 400 to the side frame 120 generates a bending moment in the widened portion 120A.
  • the fourth cross member 146 located behind the widened portion 120A is connected to the inner surface of the side frame 120 via the first diagonal member 160 and the second diagonal member 180, the widened portion 120A. Is prevented from being deformed. For this reason, the bending moment generated in the widened portion 120A deforms the portion having low rigidity with respect to the bending moment, specifically, the side frame 120 positioned immediately before the widened portion 120A.
  • the front wheel FW supported by the suspension 200 rotates counterclockwise, and the front surface of the front wheel FW protrudes outward in the vehicle width.
  • the impact force acting on the front wheel FW is transmitted to the upper arm 220 and the lower arm 240 of the suspension 200, for example, the side frames 120 of the front end portions 220A and 240A located at the rear of the vehicle. Destroy the connection to.
  • the object 500 collides with the inside of the front surface of the front wheel FW and further rotates the front wheel FW.
  • the suspension 200 is destroyed, the rear surface of the front wheel FW comes into contact with the front surface of the stopper 300, and the impact force acting on the front wheel FW is received by the stopper 300.
  • the front surface of the stopper 300 is the inclined surface 300A, the area of contact with the rear surface of the front wheel FW rotated by the deformation of the side frame 120 increases, and the impact force acting on the front wheel FW is firmly received. Can do.
  • the impact force received by the stopper 300 is passed through the first diagonal member 160, the fourth cross member 146, and the second diagonal member 180, as shown by the hatched arrows in FIG. Dispersed at a plurality of locations on the side frame 120. For this reason, the side frame 120 positioned behind the widened portion 120A is prevented from being greatly deformed. At this time, if the first diagonal member 160 and the second diagonal member 180 are located on the same horizontal plane, the impact force can be efficiently distributed to a plurality of locations on the side frame 120.
  • the front wheel FW When the vehicle further travels, as shown in FIG. 12, the front wheel FW receives an impact force acting from the object 500, slides on the slope 300A of the stopper 300 and further rotates counterclockwise, and moves outside the front wheel FW. The side surface contacts the front surface of the stopper 300. Then, the stopper 300 receives the front wheel FW and the front wheel FW is prevented from entering the cabin. At this time, since the front surface of the stopper 300 is the slope 300A, the frame 100 is further elastically moved to the right in the vehicle traveling direction by the component force in the vehicle width direction of the impact force transmitted from the front wheel FW to the stopper 300. Move to move.
  • the frame 100 is moved by the projecting member 400 and the front wheel FW is rotated by the object 500, so that the outer surface of the front wheel FW becomes the stopper 300 during the vehicle collision. It can be made to contact. For this reason, the front wheel FW easily comes into contact with the stopper 300 at the time of a vehicle collision, and the effect of the stopper 300 can be achieved. Even if the front surface of the stopper 300 is not the inclined surface 300A, the frame 100 is moved by the protruding member 400, so that the collision position of the object 500 with the front wheel FW is on the inside, and the front wheel FW can be rotated.
  • the rotation mechanism of the front wheel FW due to the collision with the object 500 may be caused by deformation of the suspension 200 due to other causes, for example, destruction of the brackets 122 and 124 fixed to the side frame 120.
  • the suspension 200 that supports the front wheel FW is not limited to the double wishbone type suspension, but may be a known suspension such as a strut suspension.
  • the fourth cross member 146 may be connected to the inner surface of the side frame 120 only through the first diagonal member 160 as long as the required strength can be ensured.
  • the frame 100 includes both the stopper 300 and the protruding member 400. However, it is sufficient that the frame 100 includes at least the protruding member 400. In this case, when the vehicle collides with the offset, the object 500 collides with the projecting member 400 before colliding with the front wheel FW, so that a part of the impact force is absorbed by the projecting member 400 and the external force acting on the front wheel FW. Is reduced. For this reason, even if the stopper 300 is not attached to the frame 100, the front wheel FW can be made difficult to enter the cabin.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention porte sur un châssis de véhicule, lequel châssis a : une paire de longerons de châssis gauche et droit s'étendant dans la direction avant-arrière du véhicule ; et des traverses s'étendant dans la direction de la largeur du véhicule, et reliant la paire de longerons de châssis gauche et droit. Des éléments de saillie faisant saillie vers l'extérieur dans la direction de la largeur du véhicule à partir des surfaces externes des longerons de châssis sont montés sur des parties des surfaces externes des longerons de châssis , les parties étant disposées à l'avant de roues avant.
PCT/JP2014/066058 2014-06-17 2014-06-17 Châssis de véhicule WO2015193972A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/066058 WO2015193972A1 (fr) 2014-06-17 2014-06-17 Châssis de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/066058 WO2015193972A1 (fr) 2014-06-17 2014-06-17 Châssis de véhicule

Publications (1)

Publication Number Publication Date
WO2015193972A1 true WO2015193972A1 (fr) 2015-12-23

Family

ID=54935004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/066058 WO2015193972A1 (fr) 2014-06-17 2014-06-17 Châssis de véhicule

Country Status (1)

Country Link
WO (1) WO2015193972A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018016051A1 (fr) * 2016-07-21 2018-01-25 日産ライトトラック株式会社 Châssis destiné à des véhicules
JP2018103844A (ja) * 2016-12-27 2018-07-05 トヨタ自動車株式会社 車体骨格構造
JP2019089510A (ja) * 2017-11-16 2019-06-13 スズキ株式会社 車体構造
CN109895855A (zh) * 2017-11-24 2019-06-18 铃木株式会社 车身构造
JP2019099103A (ja) * 2017-12-08 2019-06-24 スズキ株式会社 車体構造
DE102020119405B4 (de) 2019-07-25 2024-05-08 Ford Global Technologies, Llc Rahmenträgerbaugruppe sowie diese aufweisendes fahrzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1349589A (en) * 1916-11-20 1920-08-17 Cadillac Motor Car Company Motor-vehicle
US2009963A (en) * 1933-08-11 1935-07-30 Frederick C Matthaei Automobile chassis frame
JP2006137408A (ja) * 2004-10-13 2006-06-01 Nissan Motor Co Ltd 車体骨格構造
JP2009226971A (ja) * 2008-03-19 2009-10-08 Mazda Motor Corp 車体下部構造
JP2014046760A (ja) * 2012-08-30 2014-03-17 Mitsubishi Motors Corp 車体前部のフレーム構造
JP2014058184A (ja) * 2012-09-14 2014-04-03 Toyota Motor Corp 車体前部構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1349589A (en) * 1916-11-20 1920-08-17 Cadillac Motor Car Company Motor-vehicle
US2009963A (en) * 1933-08-11 1935-07-30 Frederick C Matthaei Automobile chassis frame
JP2006137408A (ja) * 2004-10-13 2006-06-01 Nissan Motor Co Ltd 車体骨格構造
JP2009226971A (ja) * 2008-03-19 2009-10-08 Mazda Motor Corp 車体下部構造
JP2014046760A (ja) * 2012-08-30 2014-03-17 Mitsubishi Motors Corp 車体前部のフレーム構造
JP2014058184A (ja) * 2012-09-14 2014-04-03 Toyota Motor Corp 車体前部構造

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018016051A1 (fr) * 2016-07-21 2018-01-25 日産ライトトラック株式会社 Châssis destiné à des véhicules
US9988090B2 (en) 2016-07-21 2018-06-05 Nissan Motor Light Truck Co., Ltd. Vehicle frame
JP2018103844A (ja) * 2016-12-27 2018-07-05 トヨタ自動車株式会社 車体骨格構造
JP2019089510A (ja) * 2017-11-16 2019-06-13 スズキ株式会社 車体構造
CN109795557B (zh) * 2017-11-16 2021-12-14 铃木株式会社 车身构造
CN109895855A (zh) * 2017-11-24 2019-06-18 铃木株式会社 车身构造
JP2019093937A (ja) * 2017-11-24 2019-06-20 スズキ株式会社 車体構造
CN109895855B (zh) * 2017-11-24 2021-09-21 铃木株式会社 车身构造
JP2019099103A (ja) * 2017-12-08 2019-06-24 スズキ株式会社 車体構造
DE102020119405B4 (de) 2019-07-25 2024-05-08 Ford Global Technologies, Llc Rahmenträgerbaugruppe sowie diese aufweisendes fahrzeug

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