WO2023189990A1 - 車両の構造 - Google Patents

車両の構造 Download PDF

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Publication number
WO2023189990A1
WO2023189990A1 PCT/JP2023/011375 JP2023011375W WO2023189990A1 WO 2023189990 A1 WO2023189990 A1 WO 2023189990A1 JP 2023011375 W JP2023011375 W JP 2023011375W WO 2023189990 A1 WO2023189990 A1 WO 2023189990A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
width direction
cross member
vehicle width
side frame
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2023/011375
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
友幸 大江
健夫 水口
直哉 上原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP2024512247A priority Critical patent/JP7616481B2/ja
Priority to AU2023241998A priority patent/AU2023241998B2/en
Publication of WO2023189990A1 publication Critical patent/WO2023189990A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions

Definitions

  • the present invention relates to the structure of a vehicle.
  • a leaf spring suspension system As a suspension system for a vehicle, a leaf spring suspension system is known in which the end of a leaf spring that suspends an axle is swingably supported by a side frame via a shackle (see Patent Documents 1 and 2).
  • an embodiment of the present invention includes a pair of side frames having a closed cross-section structure that are arranged at intervals in the vehicle width direction and extend in the vehicle longitudinal direction;
  • the cross member has an opening in the lower wall at the end in the vehicle width direction.
  • the shackle is swingably attached to the side frame by being inserted into the opening at a location between the front wall and the rear wall of the cross member in the side frame. It is characterized by
  • a shackle can be provided at a location on the side frame to which the cross member is coupled, and the load applied from the leaf spring via the shackle can be received by the side frame and the cross member.
  • FIG. 2 is a perspective view of a pair of side members and a cross member that constitute a ladder frame to which a leaf spring type suspension system according to an embodiment is applied, viewed from the front of the vehicle.
  • FIG. 2 is a perspective view showing a main part of the leaf spring type suspension system according to the embodiment, looking up from the inside in the vehicle width direction.
  • FIG. 3 is a perspective view of a connecting portion between a side frame and a cross member, viewed from the outside in the vehicle width direction.
  • a leaf spring suspension system according to an embodiment of the present invention will be described below with reference to the drawings.
  • the symbol FR indicates the front of the vehicle
  • the symbol UP indicates the upper side of the vehicle
  • the symbol IN indicates the inside in the vehicle width direction
  • OUT indicates the outside in the vehicle width direction.
  • the vehicle to which the leaf spring type suspension system of this embodiment is applied is a pickup truck.
  • a pickup truck is a frame vehicle in which a cabin and a cargo box constituting the body are mounted on a ladder frame.As shown in FIG. It includes a side frame 12 and a plurality of cross members 14A and 14B that connect the pair of side frames 12 at intervals in the vehicle longitudinal direction.
  • the pair of side frames 12 are hollow, have a vertically elongated rectangular cross section, and have a closed cross-sectional structure.
  • the pair of side frames 12 includes an outer surface 1202 on the outer side in the vehicle width direction, an inner surface 1204 on the inner side in the vehicle width direction, an upper surface 1206 that connects the outer surface 1202 and the inner surface 1204, and an upwardly facing upper surface 1206 and a downwardly facing lower surface. 1208.
  • the plurality of cross members 14A, 14B extend between mutually opposing inner surfaces 1204 of the pair of side frames 12 in the vehicle width direction.
  • the rear cross member 14B located at the rearmost position of the vehicle also serves as a member that supports a spare tire (not shown) below the rear cross member 14B.
  • the rear cross member 14B includes an upper member 16 that constitutes the upper part of the rear cross member 14B, and a lower member 18 that constitutes the lower part of the rear cross member 14B.
  • the upper member 16 includes a central member 20 and a pair of end members 22 connected to both ends of the central member 20 in the vehicle width direction. As shown in FIG.
  • the center member 20 and the pair of end members 22 include a center front wall 2002 and an end front wall 2202 facing toward the front of the vehicle, and a center rear wall 2004 and an end rear wall 2204 facing toward the rear of the vehicle. , a central upper wall 2006 that connects them and faces upward, and an end upper wall 2206, and is formed to be open downward.
  • the lower member 18 has a front wall 1802 facing the front of the vehicle, a rear wall 1804 facing the rear of the vehicle, and a lower wall 1806 connecting the front wall 1802 and the rear wall 1804 and facing downward, It is formed to be open at the top. As shown in FIG.
  • both ends of the upper member 16 in the vehicle width direction in this embodiment, both ends of the end member 22 in the vehicle width direction, and both ends of the lower member 18 in the vehicle width direction are located inside in the vehicle width direction. It is formed as a sloped portion 1808 that slopes upward as it approaches.
  • the inner end of the end member 22 in the vehicle width direction is placed over the outer end of the center member 20 in the vehicle width direction and is joined to the center member 20.
  • the end front wall 2202 of the end member 22 and the center front wall 2002 of the center member 20 are joined.
  • the upper end of the front wall 1802 of the lower member 18 is overlapped and joined to the lower end of the central front wall 2002 of the central member 20 and the lower end of the end front wall 2202 of the end member 22, and the upper end of the rear wall 1804 are overlapped and joined to the inside of the lower end of the central rear wall 2004 and the lower end of the end rear wall 2204.
  • Flanges 2210 provided at the outer ends in the vehicle width direction of the end front wall 2202, center rear wall 2004, and end rear wall 2204 of the end member 22 are joined to the inner surface 1204 and the upper surface 1206 of the side frame 12.
  • flanges 1810 provided at the outer ends in the vehicle width direction of the front wall 1802, rear wall 1804, and lower wall 1806 of the lower member 18 are joined to the inner surface 1204 and lower surface 1208 of the side frame 12.
  • a cylindrical portion 30 that supports the upper shackle pin 26 (see FIG. 2) of the shackle 24 is provided within the longitudinal width of the rear cross member 14B when viewed from the vehicle width direction.
  • the cylindrical portion 30 includes the front wall of the rear cross member 14B (the end front wall 2202 and the front wall 1802) and the rear wall of the rear cross member 14B (the end rear wall 2204 and the rear wall 1804) when viewed from the vehicle width direction. It is provided between the inner surface 1204 and the outer surface 1202 of the side frame 12. Further, as shown in FIG.
  • reinforcements 32 are connected to the inner surface 1204, outer surface 1202, upper surface 1206, and lower surface 1208 of the side frame 12 at the vehicle front and vehicle rear sides of the cylindrical portion 30.
  • a pair is provided.
  • the reinforcement 32 is provided inside the side frame 12 so as to sandwich the support shaft (upper shackle pin 26) of the shackle 24 from the longitudinal direction of the vehicle.
  • the pair of reinforcements 32 are arranged so as to be located within the longitudinal width of the rear cross member 14B.
  • the pair of reinforcements 32 are located on extensions of the front and rear walls of the rear cross member 14B in the vehicle width direction.
  • the reference numeral 34 indicates a support bracket that supports the body (cabin or cargo box).
  • the support brackets 34 are joined to the outer surfaces 1202 of the pair of side frames 12, respectively. As shown in FIG. 3, at least a portion of the support bracket 34 overlaps with the rear cross member 14B when viewed from the vehicle width direction.
  • the lower wall 1806 at the end of the lower member 18 in the vehicle width direction has an opening 36 that allows attachment of a shackle 24, which will be described later, and that allows the shackle 24 to swing.
  • the opening 36 includes an outer edge 3602 that extends in the vehicle longitudinal direction along the lower end of the inner surface 1204 of the side frame 12, and a front edge 3604 and a rear edge that extend linearly inward in the vehicle width direction from both ends of the outer edge 3602. 3606, and an inner edge 3608 connecting the inner ends of the front edge 3604 and the rear edge 3606 in the vehicle width direction.
  • the outer edge 3602 is located on the outer side in the vehicle width direction than the lower end of the inner side surface 1204, and the lower surface 1208 of the side frame 12 is exposed inside the outer edge 3602 in the vehicle width direction. Therefore, when attaching the shackle 24 through the opening 36, it is difficult for the hand to touch the outer edge 3602, thereby suppressing the feeling of danger and improving work efficiency.
  • the leading edge 3604, trailing edge 3606, and inner edge 3608 are each provided with a flange 3610 that rises upwardly therefrom. Flange 3610 extends the entire length of leading edge 3604, trailing edge 3606, and inner edge 3608 to reinforce the area around opening 36 of rear cross member 14B. As shown in FIG.
  • the front edge 3604 and the rear edge 3606 extend to the inner side in the vehicle width direction from the joint between the center member 20 and the end member 22.
  • Flanges 3610 provided on the front edge 3604 and the rear edge 3606 extend in the vehicle width direction across the joint between the center member 20 and the pair of end members 22.
  • the outer side of the opening 36 in the vehicle width direction is not open, and the flange 1810 joined to the lower surface 1208 of the side frame 12 is located on the outer side of the opening 36 in the vehicle width direction. There is. Since the opening 36 is closed, the rigidity or strength around the opening 36 of the rear cross member 14B is higher than when the opening 36 is open outward in the vehicle width direction.
  • the leaf spring type suspension system 40 includes a leaf spring 38, a support shaft (not shown) that swingably supports the vehicle front end of the leaf spring 38 with respect to the side frame 12, and A shackle 24 that swingably supports the rear end of the vehicle with respect to the side frame 12 is included.
  • the shackle 24 is provided to sandwich the outer surface 1202 and inner surface 1204 of the side frame 12.
  • the upper end of the shackle 24 is connected to the side frame 12 via an upper shackle pin 26, and the lower end of the shackle 24 is connected to the vehicle rear end of a leaf spring 38 via a lower shackle pin 28. Therefore, the attachment point (in this embodiment, the upper part) of the shackle 24 to the side frame 12 is located inside the width of the rear cross member 14B in the vehicle longitudinal direction.
  • the opening 36 is provided on the lower surface of the rear cross member 14B, and the shackle 24 is attached to the side frame 12 through the opening 36 on the inside of the width of the rear cross member 14B in the longitudinal direction of the vehicle. . Therefore, the shackle 24 can be provided at the location where the rear cross member 14B of the side frame 12 is coupled, and the load applied from the leaf spring 38 via the shackle 24 can be received by the side frame 12 and the rear cross member 14B. .
  • a pair of reinforcements 32 are provided inside the side frame 12 so as to sandwich the support shaft of the shackle 24 from the vehicle front-rear direction. Therefore, the portion of the side frame 12 where the shackle 24 is provided can be efficiently reinforced by the pair of reinforcements 32.
  • the rear cross member 14B has a closed cross-sectional structure having a front surface located at the front of the vehicle and a rear surface located at the rear of the vehicle, and the pair of reinforcements 32 are provided at the front and rear surfaces of the rear cross member 14B. It is located on an extension of the rear surface. Therefore, it is more advantageous to reinforce the portion of the side frame 12 where the rear cross member 14B is joined, and to reinforce the portion where the shackle 24 is provided.
  • the support bracket 34 that supports the body is provided to be joined to the outer surface 1202 of the pair of side frames 12, and when viewed from the vehicle width direction, at least a part of the support bracket 34 is connected to the rear cross section. It overlaps with member 14B. Therefore, the existing support bracket 34 can be used to reinforce the portion of the side frame 12 where the rear cross member 14B is coupled.
  • a flange 3610 bent upward is formed along the edge of the opening 36 of the rear cross member 14B. Therefore, even though the opening 36 is provided, it is advantageous in ensuring the strength or rigidity of the rear cross member 14B. Further, when attaching the shackle 24 to the side frame 12 through the opening 36, there is no sense of danger due to the edge of the opening 36, which is advantageous in improving work efficiency.
  • the rear cross member 14B is divided into a central member 20, a pair of end members 22, and a lower member 18.
  • the pair of end members 22 are formed of plate-like members having a thickness D1 larger than that of the center member 20 and the lower member 18, and their outer ends in the vehicle width direction are connected to the side frame 12.
  • the lower member 18 is formed of a plate-like member having a thickness D2, which is thicker than the center member 20 and smaller than the end members 22, and its outer end in the vehicle width direction is joined to the side frame 12. has been done.
  • a spare tire is provided below the lower member 18.
  • the center member 20 is formed of a plate-like member having a thickness D3 smaller than that of the lower member 18 and the end members 22, and its outer end in the vehicle width direction is joined to the pair of end members 22. Since the end member 22 is a member connected to the side frame 12, it is a thick plate. In particular, since the end member 22 is a member located only at the end of the rear cross member 14B, an increase in weight can be suppressed even if it is a thick plate.
  • the lower member 18 is a member that is connected to the side frame 12 and comes into contact with the spare tire, so it is a slightly thick plate.
  • the central member 20 is made of a thin plate to reduce its weight.
  • the flange 3610 extends across the joint between the central member 20 and the pair of end members 22. Therefore, the flange 3610 is advantageous in reinforcing the joint between the pair of end members 22 and the central member 20.
  • the openings 36 are provided in the lower surfaces 1208 at both ends of the rear cross member 14B at inclined portions 1808 that are inclined upwardly toward the inside in the vehicle width direction. Therefore, when viewed from the vehicle width direction, the opening 36 has a shape that also extends in the vertical direction. This is advantageous in improving workability when attaching the shackle 24 to the inner surface 1204 of the side frame 12 through the opening 36. Further, by providing the inclined portions 1808 on the lower surface 1208 at both ends of the rear cross member 14B in the extending direction, the lower surface 1208 of the central portion of the rear cross member 14B in the extending direction is positioned higher. Therefore, attaching the spare tire to the lower surface 1208 of the central portion of the rear cross member 14B in the extending direction is advantageous in ensuring a large distance between the spare tire and the ground.

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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)
PCT/JP2023/011375 2022-03-29 2023-03-23 車両の構造 Ceased WO2023189990A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024512247A JP7616481B2 (ja) 2022-03-29 2023-03-23 車両の構造
AU2023241998A AU2023241998B2 (en) 2022-03-29 2023-03-23 Structure for vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022053220 2022-03-29
JP2022-053220 2022-03-29

Publications (1)

Publication Number Publication Date
WO2023189990A1 true WO2023189990A1 (ja) 2023-10-05

Family

ID=88201912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/011375 Ceased WO2023189990A1 (ja) 2022-03-29 2023-03-23 車両の構造

Country Status (3)

Country Link
JP (1) JP7616481B2 (https=)
AU (1) AU2023241998B2 (https=)
WO (1) WO2023189990A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54132117U (https=) * 1978-03-07 1979-09-13
JP2014061724A (ja) * 2012-09-20 2014-04-10 Hino Motors Ltd 車載電源装置の搭載構造
JP2020132101A (ja) * 2019-02-26 2020-08-31 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ 車両用駆動装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558843C2 (de) * 1975-12-27 1983-01-13 Daimler-Benz Ag, 7000 Stuttgart Fahrgestellrahmen für Fahrzeuge, insbesondere für LKW
IT206196Z2 (it) * 1985-12-13 1987-07-13 Iveco Fiat Struttura di sopporto di tipo perfezionato per un veicolo industriale
US6676160B2 (en) * 2001-08-20 2004-01-13 Ford Global Technologies, Llc Rear frame rail that incorporates leaf spring clearance zone
JP4088825B2 (ja) * 2002-09-06 2008-05-21 日野自動車株式会社 車両用懸架装置
US7213825B2 (en) * 2004-02-12 2007-05-08 Deere & Company Leaf spring retaining bracket

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54132117U (https=) * 1978-03-07 1979-09-13
JP2014061724A (ja) * 2012-09-20 2014-04-10 Hino Motors Ltd 車載電源装置の搭載構造
JP2020132101A (ja) * 2019-02-26 2020-08-31 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ 車両用駆動装置

Also Published As

Publication number Publication date
JP7616481B2 (ja) 2025-01-17
AU2023241998B2 (en) 2025-10-30
AU2023241998A1 (en) 2024-10-03
JPWO2023189990A1 (https=) 2023-10-05

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