WO2020256042A1 - Structure de châssis - Google Patents

Structure de châssis Download PDF

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Publication number
WO2020256042A1
WO2020256042A1 PCT/JP2020/023884 JP2020023884W WO2020256042A1 WO 2020256042 A1 WO2020256042 A1 WO 2020256042A1 JP 2020023884 W JP2020023884 W JP 2020023884W WO 2020256042 A1 WO2020256042 A1 WO 2020256042A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate portion
side member
vehicle
shock absorbing
frame structure
Prior art date
Application number
PCT/JP2020/023884
Other languages
English (en)
Japanese (ja)
Inventor
哲雄 井上
哲也 原澤
Original Assignee
いすゞ自動車株式会社
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 いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2020256042A1 publication Critical patent/WO2020256042A1/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
    • 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

  • This disclosure relates to the frame structure of the vehicle.
  • Patent Document 1 discloses a structure in which a pair of left and right side frames extending in the front-rear direction are provided, and the side frames are formed by joining the ends of the front side frame and the middle side frame to each other. There is.
  • the vehicle may be provided with a frame structure in which a plurality of side members divided in the front-rear direction of the vehicle are connected.
  • the joint portion of the side member divided in the front-rear direction of the vehicle may have insufficient strength against a load from the outside in the vehicle width direction of the joint portion.
  • the present disclosure has been made in view of these points, and provides a frame structure capable of improving the strength of the joints of a plurality of side members against a load from the outside in the vehicle width direction of the vehicle. The purpose.
  • a first side member extending in the front-rear direction of the vehicle and a second side member provided behind the first side member and extending in the front-rear direction. And, it is provided on the outer surface of the joint portion between the first side member and the second side member in the vehicle width direction of the vehicle, and absorbs collision energy by deforming when colliding with an external object.
  • a frame structure characterized by having a shock absorbing member.
  • the shock absorbing member includes an outer plate portion extending in the front-rear direction and at least a part of an edge of the outer plate portion on the outside of the first side member and the second side member in the vehicle width direction.
  • the first side member has an outer surface in the vehicle width direction, and a side plate portion extending toward at least one of the outer surfaces of the second side member in the vehicle width direction. You may be.
  • the side plate portion the front side plate portion provided on the front side in the front-rear direction of the vehicle, the rear side plate portion provided on the rear side of the front side plate portion in the front-rear direction, and the height of the vehicle.
  • An upper plate portion provided on the upper side in the direction and a lower plate portion provided on the lower side of the upper plate portion in the height direction may be provided.
  • shock absorbing member which is provided inside the shock absorbing member and has a region extending at least in the vehicle width direction.
  • a shock absorbing material that is housed inside the shock absorbing member and absorbs the collision energy may be further provided.
  • the frame structure it is possible to improve the strength of the joints of a plurality of side members against a load from the outside in the vehicle width direction.
  • FIG. 1 shows the structure of the frame structure according to the present embodiment.
  • FIG. 2 is an enlarged view of the vicinity of the shock absorbing member in the frame structure.
  • FIG. 3 shows the structures of the shock absorbing member and the reinforcing member.
  • FIG. 4 shows the structures of the shock absorbing member, the reinforcing member, and the shock absorbing material.
  • FIG. 1 is a diagram showing a structure of a frame structure S according to the present embodiment.
  • the frame structure S is provided on the vehicle.
  • the frame structure S extends in the front-rear direction of the vehicle.
  • the frame structure S has a first side member 1, a second side member 2, a shock absorbing member 3, a fastening member 4, and a reinforcing member 5.
  • the first side member 1 extends in the front-rear direction of the vehicle.
  • the second side member 2 is provided behind the first side member 1 and extends in the front-rear direction of the vehicle.
  • the frame structure S has a first left side member 1L and a first right side member 1R as the first side member 1.
  • the first left side member 1L is provided on the left side of the vehicle.
  • the first right side member 1R is provided on the right side of the vehicle.
  • the frame structure S has a second left side member 2L and a second right side member 2R as the second side member 2.
  • the second left side member 2L is provided on the left side of the vehicle.
  • the second right side member 2R is provided on the right side of the vehicle.
  • the shock absorbing member 3 is provided on the outer surface of the joint between the first side member 1 and the second side member 2 in the vehicle width direction, and is deformed when colliding with an external object to obtain collision energy. To absorb.
  • the external object is, for example, a utility pole. Details of the shock absorbing member 3 will be described later.
  • the frame structure S can absorb the collision energy by deforming the shock absorbing member 3 when the shock absorbing member 3 collides with an external object. Therefore, in the frame structure S, the shock absorbing member 3 is formed into a joint portion between the first side member 1 and the second side member 2 by, for example, plastically deforming and absorbing the collision energy with an external object. The impact applied can be reduced. As a result, the frame structure S can improve the strength of the joint between the first side member 1 and the second side member 2 against a load from the outside in the vehicle width direction of the vehicle.
  • FIG. 2 is an enlarged view of the vicinity of the shock absorbing member 3 in the frame structure S.
  • FIG. 3 is a diagram showing the structures of the shock absorbing member 3 and the reinforcing member 5.
  • the shock absorbing member 3 has, for example, a hollow box shape.
  • the shock absorbing member 3 has an outer plate portion 31, a side plate portion 32, and a mounting portion 33.
  • the outer plate portion 31 is a portion extending in the front-rear direction of the vehicle on the outside of the first side member 1 and the second side member 2 in the vehicle width direction.
  • the side plate portion 32 is out of an outer surface of the first side member 1 in the vehicle width direction of the vehicle and an outer surface of the second side member 2 in the vehicle width direction from at least a part of the edge of the outer plate portion 31. It is a part extending toward at least one of the above.
  • the shock absorbing member 3 having the outer plate portion 31 and the side plate portion 32 is provided on the outer surface of the joint portion between the first side member 1 and the second side member 2 in the vehicle width direction.
  • the shock absorbing member 3 has a front side plate portion 321 as a side plate portion 32, a rear side plate portion 322, an upper plate portion 323, and a lower side plate portion 324.
  • the front plate portion 321 is provided on the front side in the front-rear direction of the vehicle.
  • the front plate portion 321 extends inward in the vehicle width direction from the front end of the outer plate portion 31.
  • the rear side plate portion 322 is provided on the rear side of the front side plate portion 321 in the front-rear direction of the vehicle.
  • the rear side plate portion 322 extends inward in the vehicle width direction of the vehicle from the rear end of the outer plate portion 31.
  • the upper plate portion 323 is provided on the upper side in the height direction of the vehicle.
  • the upper plate portion 323 extends inward in the vehicle width direction from the upper end of the outer plate portion 31.
  • the lower plate portion 324 is provided below the upper plate portion 323 in the height direction of the vehicle.
  • the lower plate portion 324 extends inward in the vehicle width direction from the lower end of the outer plate portion 31.
  • the shock absorbing member 3 having the front side plate portion 321 as the side plate portion 32, the rear side plate portion 322, the upper plate portion 323, and the lower side plate portion 324 is the first side member 1 and the second side member.
  • the mounting portion 33 is a portion for fixing the shock absorbing member 3 to the joint portion between the first side member 1 and the second side member 2.
  • the shock absorbing member 3 has a first mounting portion 331 and a second mounting portion 333 as the mounting portion 33.
  • the first mounting portion 331 extends from the inner end of the front plate portion 321 in the vehicle width direction toward the front in the front-rear direction of the vehicle.
  • the first mounting portion 331 has a first hole 332.
  • the first hole 332 is a hole into which the first fastening member 41 described later is inserted.
  • the second mounting portion 333 extends from the inner end portion of the rear side plate portion 322 in the vehicle width direction toward the rear in the front-rear direction of the vehicle.
  • the second mounting portion 333 has a second hole 334.
  • the second hole 334 is a hole into which the second fastening member 42, which will be described later, is inserted.
  • the fastening member 4 is a member for fixing the shock absorbing member 3 to the joint portion between the first side member 1 and the second side member 2.
  • the fastening member 4 is, for example, a bolt or a screw.
  • a first fastening member 41 and a second fastening member 42 are provided.
  • the shock absorbing member 3 is formed by inserting the first fastening member 41 into the first hole 332 of the first mounting portion 331 and the hole formed in the first side member 1 and tightening the first fastening member 41. , Is fixed to the first side member 1. Further, the shock absorbing member 3 inserts the second fastening member 42 into the second hole 334 of the second mounting portion 333 and the hole formed in the second side member 2 to tighten the second fastening member 42. As a result, it is fixed to the second side member 2.
  • the reinforcing member 5 is provided inside the shock absorbing member 3 and has a region extending at least in the vehicle width direction of the vehicle.
  • the region includes, for example, at least one of the inner side plate portion 52 and the fixing portion 53, which will be described later.
  • the reinforcing member 5 has an inner plate portion 51, an inner side plate portion 52, and a fixing portion 53.
  • the inner plate portion 51 is a portion extending in the front-rear direction of the vehicle inside the outer plate portion 31 in the vehicle width direction of the vehicle.
  • the inner side plate portion 52 is a portion extending in the vehicle width direction of the vehicle.
  • a front inner plate portion 521 and a rear inner plate portion 522 are provided as the inner side plate portion 52.
  • the front inner plate portion 521 is provided on the front side in the front-rear direction of the vehicle.
  • the front inner plate portion 521 extends inward in the vehicle width direction from the front end of the inner plate portion 51.
  • the rear inner plate portion 522 is provided on the rear side of the front inner plate portion 521 in the front-rear direction of the vehicle.
  • the rear inner plate portion 522 extends inward in the vehicle width direction from the rear end of the inner plate portion 51.
  • the fixing portion 53 is a portion for fixing the reinforcing member 5 to the shock absorbing member 3.
  • the reinforcing member 5 has a first fixing portion 531, a second fixing portion 532, a third fixing portion 533, and a fourth fixing portion 534 as the fixing portion 53.
  • the first fixing portion 531 extends rearward from the lower end of the front inner plate portion 521.
  • the second fixing portion 532 extends rearward from the upper end of the front inner plate portion 521.
  • the third fixing portion 533 extends forward from the lower end of the rear inner plate portion 522.
  • the fourth fixing portion 534 extends forward from the upper end of the rear inner plate portion 522.
  • the first fixing portion 531 and the third fixing portion 533 are welded to the upper surface of the lower plate portion 324, and the second fixing portion 532 and the fourth fixing portion 534 are formed on the lower surface of the upper plate portion 323. By being welded, it is fixed to the inner surface of the shock absorbing member 3.
  • FIG. 4 is a diagram showing the structures of the shock absorbing member 3, the reinforcing member 5, and the shock absorbing material 6.
  • the shock absorbing material 6 may be housed inside the shock absorbing member 3.
  • the shock absorbing material 6 is a member that absorbs collision energy by being deformed when colliding with an external object.
  • the shock absorbing material 6 is, for example, a foaming material.
  • the frame structure S according to the present embodiment is provided behind the first side member 1 extending in the front-rear direction of the vehicle and the first side member 1, and extends in the front-rear direction of the vehicle. It has a side member 2. Further, the frame structure S is provided on the outer surface of the joint portion between the first side member 1 and the second side member 2 in the vehicle width direction, and is deformed when colliding with an external object to cause a collision. It has a shock absorbing member 3 that absorbs energy.
  • the frame structure S can absorb the collision energy by deforming the shock absorbing member 3 when the shock absorbing member 3 collides with an external object. Therefore, in the frame structure S, the shock absorbing member 3 is formed into a joint portion between the first side member 1 and the second side member 2 by, for example, plastically deforming and absorbing the collision energy with an external object. The impact applied can be reduced. As a result, the frame structure S can improve the strength of the joint between the first side member 1 and the second side member 2 against a load from the outside in the vehicle width direction of the vehicle.
  • the frame structure it is useful in that it is possible to improve the strength of the joints of a plurality of side members against a load from the outside in the vehicle width direction.
  • S Frame structure 1, 1L, 1R ... First side member 2, 2L, 2R ... Second side member 3 ... Shock absorbing member 31 ... Outer plate portion 32 ... Side plate portion 321 ... Front side plate part 322 ... Rear side plate part 323 ... Upper plate part 324 ... Lower plate part 33 ... Mounting part 331 ... First mounting part 332 ... First hole 333 ... 2nd mounting portion 334 ... 2nd hole 4 ... Fastening member 41 ... 1st fastening member 42 ... 2nd fastening member 5 ... Reinforcing member 51 ... Inner plate Part 52 ... Inner side plate part 521 ... Front inner plate part 522 ... Rear inner plate part 53 ... Fixed part 531 ... First fixed part 532 ... Second fixed part 533 ... 3rd fixing part 534 ... 4th fixing part 6 ... Shock absorber

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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

Cette invention concerne une structure de châssis (S), comprenant un premier élément latéral (1) s'étendant dans la direction avant-arrière d'un véhicule, un second élément latéral (2) disposé derrière le premier élément latéral (1) et s'étendant dans la direction avant-arrière du véhicule, et un élément amortisseur de chocs (3) qui est disposé sur la surface extérieure d'un joint entre le premier élément latéral (1) et le second élément latéral (2) dans la direction de la largeur du véhicule et absorbe l'énergie de collision par déformation au moment de la collision avec un objet externe.
PCT/JP2020/023884 2019-06-21 2020-06-18 Structure de châssis WO2020256042A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019115180A JP2021000897A (ja) 2019-06-21 2019-06-21 フレーム構造
JP2019-115180 2019-06-21

Publications (1)

Publication Number Publication Date
WO2020256042A1 true WO2020256042A1 (fr) 2020-12-24

Family

ID=73994738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/023884 WO2020256042A1 (fr) 2019-06-21 2020-06-18 Structure de châssis

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JP (1) JP2021000897A (fr)
WO (1) WO2020256042A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07187003A (ja) * 1993-12-27 1995-07-25 Nissan Motor Co Ltd 自動車の車体前部構造
JP2013141936A (ja) * 2012-01-12 2013-07-22 Toyota Auto Body Co Ltd 車両の衝撃吸収構造
JP2014240231A (ja) * 2013-06-11 2014-12-25 トヨタ自動車株式会社 車体前部構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07187003A (ja) * 1993-12-27 1995-07-25 Nissan Motor Co Ltd 自動車の車体前部構造
JP2013141936A (ja) * 2012-01-12 2013-07-22 Toyota Auto Body Co Ltd 車両の衝撃吸収構造
JP2014240231A (ja) * 2013-06-11 2014-12-25 トヨタ自動車株式会社 車体前部構造

Also Published As

Publication number Publication date
JP2021000897A (ja) 2021-01-07

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