WO2020145192A1 - Body frame reinforcement structure - Google Patents

Body frame reinforcement structure Download PDF

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Publication number
WO2020145192A1
WO2020145192A1 PCT/JP2019/051385 JP2019051385W WO2020145192A1 WO 2020145192 A1 WO2020145192 A1 WO 2020145192A1 JP 2019051385 W JP2019051385 W JP 2019051385W WO 2020145192 A1 WO2020145192 A1 WO 2020145192A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
radiator
support
side members
cross member
Prior art date
Application number
PCT/JP2019/051385
Other languages
French (fr)
Japanese (ja)
Inventor
雄一郎 平井
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
Priority to CN201980088344.3A priority Critical patent/CN113272204A/en
Publication of WO2020145192A1 publication Critical patent/WO2020145192A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers

Definitions

  • the present disclosure relates to a reinforcing structure for a vehicle body frame.
  • Patent Document 1 describes a front structure of a vehicle.
  • the vehicle body frame includes left and right side members that extend in the vehicle front-rear direction on both sides in the vehicle width direction, a first cross member that extends in the vehicle width direction, and connects front end portions of the left and right side members, and a first cross.
  • a second cross member that extends in the vehicle width direction behind the member and connects the left and right side members to each other.
  • the front end of the engine is arranged behind the second cross member.
  • An engine cooling unit including a radiator is arranged in front of the engine and is fixed to the left and right side members.
  • the radiator is arranged rearward of the second cross member, fixed to the left and right side members via a radiator bracket, and fixed to the second cross member via a fixing rod. Supported by.
  • the plurality of cross members have rigidity of the vehicle body frame (particularly body frame). Rigidity against the twisting force).
  • the number of cross members or increase the size of each cross member for example, the plate thickness or the length in the front-rear direction.
  • various devices for example, an engine and a radiator
  • the space is small and it is possible to increase the number of cross members or increase the size of the cross members. difficult.
  • the present disclosure aims to provide a reinforcing structure for a vehicle body frame capable of ensuring the rigidity of the vehicle body frame in a limited space between the left and right side members.
  • a first aspect of the present disclosure is to provide left and right side members extending in the vehicle front-rear direction on both sides in the vehicle width direction and the left and right side members extending in the vehicle width direction between the left and right side members.
  • a reinforcing structure for a vehicle body frame having a cross member connecting members to each other, and including a substantially plate-shaped heat exchanger and a heat exchanger support member.
  • the heat exchanger is arranged on one side of the cross member in the front-rear direction so as to intersect with the front-rear direction.
  • the heat exchanger support member is arranged between the left and right side members and fixed to the vehicle body frame to support the heat exchanger.
  • the heat exchanger support member includes left and right support portions that support outer end portions on both sides of the heat exchanger in the vehicle width direction, and left and right support portions that extend from the left and right support portions to the left and right side member sides and are fixed to the left and right side members.
  • first bracket and left and right second brackets extending from the left and right support portions to the cross member side and fixed to the cross member.
  • the left and right first brackets of the heat exchanger support member are fixed to the left and right side members by extending to the left and right side member sides from the left and right support portions that support both ends of the heat exchanger in the vehicle width direction. It Therefore, the rigidity of the body frame with respect to the force of twisting the body frame (hereinafter, simply referred to as the rigidity of the body frame) can be improved by using the heat exchanger.
  • the left and right second brackets of the heat exchanger support member extend from the left and right support portions to the cross member side and are fixed to the cross member. That is, since the heat exchanger is connected to the cross member via the left and right second brackets of the heat exchanger support member, the heat exchanger and the cross member are relatively hard to move. Therefore, the rigidity of the vehicle body frame can be further improved.
  • the rigidity of the vehicle body frame can be secured, so that the number of cross members can be increased or The rigidity of the vehicle body frame can be secured in the limited space between the left and right side members without increasing the size of the member.
  • the cross member and the heat exchanger can be attached to the left and right side members in a pre-integrated state. Therefore, unlike the case where the heat exchanger is mounted on the cross member fixed to the left and right side members in the limited space between the left and right side members, mounting the heat exchanger on the cross member The workability of work can be improved.
  • a second aspect of the present disclosure is the reinforcing structure for a vehicle body frame according to the first aspect, wherein the heat exchanger support member includes an upper support portion that supports an upper end portion of the heat exchanger, and a lower end portion of the heat exchanger. And a lower support portion that supports the portion.
  • the left and right support portions of the heat exchanger support member extend in the vertical direction along the vehicle width direction outer ends of the heat exchanger.
  • the upper support portion extends in the vehicle width direction along the upper end portion of the heat exchanger and connects the upper end portions of the left and right support portions to each other.
  • the lower support portion extends in the vehicle width direction along the lower end portion of the heat exchanger and connects the lower end portions of the left and right support portions to each other.
  • the left and right support portions of the heat exchanger support member extend in the vertical direction along the outer end portion of the heat exchanger in the vehicle width direction, and the upper support portion extends along the upper end portion of the heat exchanger.
  • the lower support part extends in the vehicle width direction along the lower end part of the heat exchanger and connects the lower end parts of the left and right support parts. That is, the left and right support parts, the upper support part, and the lower support part of the heat exchanger support member surround the entire outer peripheral region of the heat exchanger and support the heat exchanger (hereinafter referred to as a support frame). ), the deformation of the heat exchanger when the force for twisting the body frame is input can be suppressed by the support frame. Therefore, the rigidity of the vehicle body frame can be further improved.
  • a third aspect of the present disclosure is the reinforcing structure for a vehicle body frame according to the first aspect or the second aspect, wherein the left and right second brackets of the heat exchanger support member are integrally formed on the left and right support portions. It is provided in.
  • the left and right second brackets of the heat exchanger support member are integrally provided on the left and right support parts (integrated by welding or integral molding). Therefore, unlike the case where the left and right support parts and the left and right second brackets are fastened and fixed by bolts or the like, the left and right support parts and the left and right second brackets are appropriately integrated (for example, integrated over a wide range). It is possible to suppress the concentration of stress.
  • left and right second brackets of the heat exchanger support member are integrally provided on the left and right support portions, unlike the case where the left and right support portions and the left and right second brackets are fastened and fixed by bolts or the like, The number of parts can be reduced.
  • a fourth aspect of the present disclosure is the reinforcing structure for a vehicle body frame according to any of the first to third aspects, wherein the left and right ends of the cross member are mounted on the upper surfaces of the left and right side members. It is fixed to the upper surfaces of the left and right side members when placed.
  • the left and right first brackets of the heat exchanger support member are fixed to the upper surfaces of the left and right side members while being mounted on the upper surfaces of the left and right side members.
  • the left and right ends of the cross member are fixed to the upper surfaces of the left and right side members while being placed on the upper surfaces of the left and right side members, and the first brackets on the left and right of the heat exchanger support member are , Are fixed to the upper surfaces of the left and right side members while being placed on the upper surfaces of the left and right side members. Therefore, the cross member and the heat exchanger can be arranged and attached to the side member of the vehicle body frame at a desired position from above in a state where the cross member and the heat exchanger are unitized in advance by the heat exchanger support member. Unlike the case where the heat exchanger support member is attached to the fixed cross member and then the heat exchanger is attached to the heat exchanger support member, workability of the heat exchanger attachment work can be improved.
  • FIG. 1 is a schematic perspective view of a front portion of a vehicle body frame.
  • FIG. 2 is a schematic side view of the front portion of the vehicle body frame.
  • FIG. 3 is a schematic plan view of the front portion of the vehicle body frame.
  • FIG. 4 is an exploded perspective view of the radiator support member.
  • FR indicates the front of the vehicle
  • UP indicates the upper side
  • IN indicates the inner side in the vehicle width direction.
  • the front-rear direction means the front-rear direction of the vehicle
  • the left-right direction means the left-right direction when facing the front of the vehicle. Further, in FIG. 2, the illustration of the left side member is omitted.
  • a vehicle 1 As shown in FIGS. 1 to 3, a vehicle 1 according to the present embodiment includes a ladder-shaped vehicle body frame 2, a radiator (heat exchanger) 3 arranged in a front portion of the vehicle body frame 2, and a radiator support member ( Heat exchanger support member) 4.
  • the body frame 2 has a pair of left and right side members 5 extending in the front-rear direction on both sides of the vehicle 1 in the vehicle width direction, and a plurality of cross members 6 extending in the vehicle width direction and connecting the left and right side members 5 to each other.
  • the left and right side members 5 are each formed in a U-shaped cross-section that opens inward in the vehicle width direction, and extend in the front-rear direction while being separated from each other in the vehicle width direction.
  • the plurality of cross members 6 include a first cross member 7 that connects the front ends of the left and right side members 5 and a second cross member (cross member) 8 arranged behind the first cross member 7.
  • the cross member according to the present disclosure is applied to the second cross member 8.
  • the second cross member 8 is formed in a U-shaped cross-section that opens forward and extends in the vehicle width direction, and a pair of left and right fixing plate portions 8b fixed to the upper surfaces of the left and right ends of the cross member body 8a.
  • the length L1 of the cross member main body 8a in the vehicle width direction is slightly shorter than the distance L2 in the vehicle width direction between the left and right side members 5 (the distance L2 between the inner edges in the vehicle width direction).
  • the left and right fixing plate portions 8b have projecting regions 9 that project outward from the left and right ends of the cross member body 8a in the vehicle width direction.
  • the protruding regions 9 of the left and right fixing plate portions 8b are fixed to the upper surfaces 5a of the left and right side members 5.
  • the second cross member 8 is fixed to the left and right side members 5 by placing the protruding regions 9 of the left and right fixing plate portions 8b on the upper surfaces 5a of the left and right side members 5 and fixing them to the left and right side members 5.
  • the radiator 3 is a heat exchanger for cooling the cooling water of the engine (not shown) of the vehicle 1, is formed in a substantially plate shape intersecting the front-rear direction, and has a second cross member 8 between the left and right side members 5. Is disposed near the rear (one side in the front-rear direction) of the vehicle and is fixed to the vehicle body frame 2 via the radiator support member 4.
  • the radiator 3 is arranged such that the lower end side thereof is located ahead of the upper end side thereof and is inclined with respect to the vertical direction.
  • a lower end portion of the radiator 3 is arranged below the vehicle body frame 2, and an upper end portion of the radiator 3 is arranged above the vehicle body frame 2.
  • An intercooler 10 that cools intake air to the engine is arranged on the front surface side of the radiator 3 and is fixed to the radiator 3.
  • the radiator support member 4 includes a support frame 11 formed in a rectangular frame shape, and a pair of left and right first brackets 12 for fixing the support frame 11 to the left and right side members 5.
  • the support frame 11 has a pair of left and right second brackets 13 for fixing the support frame 11 to the second cross member 8, and is arranged near the rear of the second cross member 8 between the left and right side members 5 to support the radiator 3.
  • the support frame 11 of the radiator support member 4 is formed in a U-shaped cross section that opens upward, and a lower frame portion (lower support portion) 11a that extends in the vehicle width direction and a U-shaped cross section that opens in the vehicle width direction.
  • an upper frame portion (upper side support portion) 11d that connects upper end portions of the horizontal frame portions 11b and 11c to each other.
  • the lower frame part 11a, the left and right lateral frame parts 11b and 11c, and the upper frame part 11d define radiator insertion spaces 14a to 14d into which the radiator 3 can be inserted.
  • the radiator insertion space 14a of the lower frame portion 11a and the radiator insertion spaces 14b and 14c of the left and right lateral frame portions 11b and 11c communicate with each other at the left and right lower end portions of the support frame 11, and the radiator insertion space 14d of the upper frame portion 11d.
  • the radiator insertion spaces 14b and 14c of the left and right lateral frame portions 11b and 11c communicate with each other at the left and right upper end portions of the support frame 11.
  • the length of the radiator insertion spaces 14a to 14d in the front-rear direction is set to be larger than the thickness of the radiator 3 (length in the front-rear direction).
  • the lower frame portion 11a extends in the vehicle width direction along the lower end portion of the radiator 3 with the lower end portion of the radiator 3 inserted in the radiator insertion space 14a, and supports the lower end portion of the radiator 3 from below.
  • the left and right lateral frame portions 11b and 11c extend vertically along the outer ends of the radiator 3 in the vehicle width direction with the outer ends of the radiator 3 in the vehicle width direction inserted into the radiator insertion spaces 14b and 14c. , Supports the outer end portion of the radiator 3 in the vehicle width direction.
  • the upper frame portion 11d extends in the vehicle width direction along the upper end portion of the radiator 3 with the upper end portion of the radiator 3 inserted in the radiator insertion space 14d, and supports the upper end portion of the radiator 3. That is, the support frame 11 of the radiator support member 4 supports the outer peripheral portion of the radiator 3 over the entire peripheral area.
  • the left and right first brackets 12 of the radiator support member 4 include a side plate portion 17 and a side plate portion 17 which are welded at predetermined positions P1 to the vehicle width direction outer side surfaces of the left and right lateral frame portions 11b and 11c of the support frame 11. It integrally has an upper plate portion 18 that is bent from the upper end edge of the above and extends outward in the vehicle width direction and is fixed to the left and right side members 5.
  • the left and right first brackets 12 are integrated with the support frame 11 by welding before fixing the upper plate portion 18 to the left and right side members 5. That is, the left and right first brackets 12 are integrally provided on the support frame 11 by welding.
  • the side plate portion 17 extends in the vertical direction along the vehicle width direction outer side surface of the radiator 3.
  • the upper plate portion 18 protrudes outward in the vehicle width direction from the outer surface in the vehicle width direction of the left and right lateral frame portions 11b and 11c, and is placed on the upper surface 5a of the left and right side members 5 so that the upper surface of the left and right side members 5 is 5a is fastened and fixed by bolts 15.
  • the left and right second brackets 13 of the radiator support member 4 are fixed to the left and right lateral frame portions 11b and 11c of the support frame 11, and a side plate portion 19 extending from the left and right lateral frame portions 11b and 11c forward and upward, and a side plate portion 19. It integrally has a front plate portion 20 that is bent from the front end edge of the vehicle and extends outward in the vehicle width direction and is fixed to the second cross member 8.
  • the left and right second brackets 13 are integrated with the support frame 11 by welding before fixing the front plate portion 20 to the second cross member 8. That is, the left and right second brackets 13 are integrally provided on the support frame 11 by welding.
  • the rear lower end portion of the side plate portion 19 is a vehicle width direction outer surface below the left and right first brackets 12 of the left and right lateral frame portions 11b and 11c of the support frame 11 (in the present embodiment, the left and right lateral frame portions 11b). , 11c to the outer side surface in the vehicle width direction of the lower end portion) at a predetermined position P2.
  • the side plate portion 19 projects forward and upward from the left and right lateral frame portions 11b and 11c and extends toward the rear surface (one surface) 8c of the second cross member 8.
  • the front plate portion 20 is fastened and fixed by a bolt 16 to the rear surface 8c of the second cross member 8 while being in surface contact with the rear surface (the surface on one side) 8c of the second cross member 8.
  • the second cross member 8 and the radiator 3 are fixed to the left and right side members 5 while being unitized by the radiator support member 4.
  • the unitized second cross member 8 and the radiator 3 are arranged from above at a desired position between the left and right side members 5,
  • the protruding regions 9 of the left and right fixed plate portions 8b of the second cross member 8 and the upper plate portions 18 of the left and right first brackets 12 of the radiator support member 4 are placed on the upper surfaces 5a of the left and right side members 5 and left and right. It is fixed to the upper surface 5a of the side member 5.
  • the left and right first brackets 12 of the radiator support member 4 that supports the radiator 3 are fixed to the left and right side members 5. That is, since the left and right sides of the radiator 3 are fixed to the left and right side members 5 via the radiator support member 4, the rigidity of the vehicle body frame 2 against the force of twisting the vehicle body frame 2 (hereinafter, simply referred to as the rigidity of the vehicle body frame 2). ) Can be improved by utilizing the radiator 3.
  • the radiator 3 is connected to the second cross member 8 via the second brackets 13 on the left and right of the radiator support member 4, the radiator 3 and the second cross member 8 are relatively hard to move. Therefore, the rigidity of the vehicle body frame 2 can be further improved.
  • the rigidity of the vehicle body frame 2 can be ensured by utilizing the radiator 3 in addition to the second cross member 8 and connecting the second cross member 8 and the radiator 3.
  • the rigidity of the vehicle body frame 2 can be secured in the limited space between the left and right side members 5 without increasing the number of cross members 6 or enlarging the second cross member 8.
  • the radiator support member 4 has a support frame 11 formed in a rectangular frame shape, and since the outer peripheral portion of the radiator 3 is supported by the support frame 11 over the entire circumference, the force for twisting the vehicle body frame 2 is reduced. The deformation of the radiator 3 at the time of input can be suppressed by the support frame 11. As described above, since the radiator 3 can be made difficult to be deformed by the support frame 11, the rigidity of the vehicle body frame 2 can be further improved.
  • the left and right second brackets 13 of the radiator support member 4 are integrally provided on the left and right lateral frame portions 11b and 11c of the support frame 11 by welding. Therefore, unlike the case where the left and right second brackets 13 and the left and right horizontal frame portions 11b and 11c of the support frame 11 are fastened and fixed with bolts or the like, the left and right second brackets 13 and the left and right horizontal frames of the support frame 11 are provided. By appropriately integrating the parts 11b and 11c (for example, integrating over a wide range), the concentration of stress can be suppressed. Further, unlike the case where the left and right second brackets 13 and the left and right lateral frame portions 11b and 11c of the support frame 11 are fastened and fixed with bolts or the like, the number of parts can be reduced.
  • the second cross member 8 and the radiator 3 are fixed to the left and right side members 5 in a state of being unitized by the radiator support member 4, the second cross member fixed to the left and right side members 5 is fixed.
  • the workability of mounting the radiator 3 to the second cross member 8 can be improved.
  • the engine, a radiator fan (not shown) connected to the output shaft of the engine, the radiator 3, the intercooler 10, and the second cross member 8 are fixed to the left and right side members 5 in a unitized state. In this case, the work in the limited space between the left and right side members 5 can be reduced, which further improves the workability of the mounting work.
  • the unitized second cross member 8 and the radiator 3 are arranged from above at a desired position between the left and right side members 5, and the protruding regions 9 of the left and right fixing plate portions 8b of the second cross member 8 and the radiator support member.
  • the upper plate portions 18 of the left and right first brackets 12 are placed on the upper surfaces 5a of the left and right side members 5 and fixed to the upper surfaces 5a of the left and right side members 5. Therefore, unlike the case where the radiator support member 4 is attached to the second cross member 8 fixed to the left and right side members 5, and then the radiator 3 is attached to the radiator support member 4, workability of the attachment work of the radiator 3 is improved. Can be improved.
  • the left and right first brackets 12 are integrally provided on the support frame 11 by welding, but the left and right first brackets 12 are integrally formed with the left and right lateral frame portions 11b and 11c of the support frame 11. You may. Alternatively, the left and right first brackets 12 may be formed separately from the support frame 11 and fastened and fixed to the support frame 11 with bolts or the like.
  • the left and right first brackets 12 are formed in an L shape by the side plate portion 17 and the upper plate portion 18, but the shape of the left and right first brackets 12 is not limited to this. Other shapes may be used as long as they extend from the left and right lateral frame portions 11b and 11c of the radiator support member 4 toward the left and right side members 5 and can be fixed to the left and right side members 5.
  • the left and right second brackets 13 are integrally provided on the support frame 11 by welding, but the left and right first brackets 12 are integrally formed with the left and right horizontal frame portions 11b and 11c of the support frame 11. You may. Alternatively, the left and right second brackets 13 may be formed separately from the support frame 11 and fastened and fixed to the support frame 11 with bolts or the like.
  • the left and right second brackets 13 are formed in an L shape by the side plate portion 19 and the front plate portion 20, but the shape of the left and right second brackets 13 is not limited to this. Other shapes may be used as long as they extend from the left and right lateral frame portions 11b and 11c of the radiator support member 4 toward the second cross member 8 and can be fixed to the second cross member 8.
  • the second cross member 8 and the radiator 3 are fixed to the left and right side members 5 in a state of being unitized by the radiator support member 4, but the present invention is not limited to this.
  • the radiator support member 4 may be fixed to the second cross member 8 fixed to the left and right side members 5.
  • the left and right fixed plate portions 8b of the second cross member 8 are not placed on the upper surfaces 5a of the left and right side members 5, and the left and right end portions of the second cross member 8 are placed inside the left and right side members 5. You may fix it in the state inserted in the space.
  • the lower frame portion 11a of the support frame 11 of the radiator support member 4, the left and right lateral frame portions 11b and 11c, and the upper frame portion 11d have a U-shaped cross section, but the lower frame portion 11a,
  • the shapes of the left and right lateral frame portions 11b and 11c and the upper frame portion 11d are not limited to this, and may be other shapes as long as they can support the outer peripheral edge portion of the radiator 3.
  • the radiator support member 4 is provided with the rectangular frame-shaped support frame 11 in the present embodiment, the frame-shaped member may not be provided.
  • the radiator support member 4 may support the outer end portion of the radiator 3 in the vehicle width direction by the left and right lateral frame portions 11b and 11c without providing one or both of the upper frame portion 11d and the lower frame portion 11a.
  • the shape of the left and right lateral frame portions 11b and 11c is not limited to the shape that extends in the up-down direction along the outer end portion of the radiator 3 in the vehicle width direction, but the outer end portions of the radiator 3 in the vehicle width direction. Other shapes may be used as long as they can support the part.
  • the intercooler 10 is provided on the front side of the radiator 3, but the intercooler 10 may not be provided, or a condenser of an air conditioner may be further provided in front of the intercooler 10.
  • the radiator support member 4 is connected to the second cross member 8, but when the radiator 3 is arranged near the rear of the first cross member 7, the radiator support member 4 is connected to the first cross member 7. May be. That is, the cross member 6 connected to the radiator support member 4 is not limited to the second cross member 8.
  • the radiator 3 is supported by the radiator support member 4, but the heat exchanger supported by the radiator support member 4 is not limited to the radiator 3 and other heat exchangers (for example, It may be an intercooler 10).
  • the heat exchanger (radiator 3) is arranged behind the predetermined cross member 6 (second cross member 8), but the heat exchanger is arranged in front of the predetermined cross member 6,
  • the heat exchanger and the predetermined cross member 6 may be connected by the radiator support member 4.
  • the body frame reinforcing structure according to the present disclosure can be widely applied to vehicles in which a radiator is arranged between the left and right side members.
  • Vehicle 2 Body frame 3: Radiator (heat exchanger) 4: Radiator support member (heat exchanger support member) 5: Left and right side members 5a: Upper surfaces of left and right side members 8: Second cross member (cross member) 11: Support frame 11a: Lower frame part (lower support part) 11b, 11c: left and right horizontal frame portions (left and right support portions) 11d: Upper frame part (upper side support part) 12: Left and right first brackets 13: Left and right second brackets

Abstract

A radiator 3 formed to be substantially plate shaped and that crosses the front-rear direction, is disposed near the rear of a second cross member 8 between left and right side members 5, and is fixed to a body frame 2 with a radiator support member 4 interposed therebetween. The radiator support member 4 has: a support frame 11 that is formed in a rectangular frame shape; left and right first brackets 12 that fix the support frame 11 to the left and right side members 5; and left and right second brackets 13 that fix the support frame 11 to the second cross member 8. The radiator support member 4 is disposed near the rear of the second cross member 8 between the left and right side members 5 and supports the radiator 3. The left and right lateral frame portions 11b of the support frame 11 extend vertically along the outer end of the radiator 3 in the vehicle width direction and support the outer end of the radiator 3 in the vehicle width direction.

Description

車体フレームの補強構造Body frame reinforcement structure
　本開示は、車体フレームの補強構造に関する。 The present disclosure relates to a reinforcing structure for a vehicle body frame.
　特許文献１には、車両の前部構造が記載されている。車体フレームは、車幅方向の両側で車両の前後方向に沿って延びる左右のサイドメンバと、車幅方向に延びて左右のサイドメンバの前端部同士を連結する第１クロスメンバと、第１クロスメンバの後方で車幅方向に延びて左右のサイドメンバ同士を連結する第２クロスメンバとを有する。エンジンの前端は、第２クロスメンバよりも後方に配置される。エンジンの前方には、ラジエータを含むエンジン冷却部が配置されて左右のサイドメンバに固定される。ラジエータは、第２クロスメンバの後方に配置され、左右のサイドメンバに対してはラジエータブラケットを介して固定され、第２クロスメンバに対しては固定ロッドを介して固定されることにより、車体フレームに支持される。 Patent Document 1 describes a front structure of a vehicle. The vehicle body frame includes left and right side members that extend in the vehicle front-rear direction on both sides in the vehicle width direction, a first cross member that extends in the vehicle width direction, and connects front end portions of the left and right side members, and a first cross. A second cross member that extends in the vehicle width direction behind the member and connects the left and right side members to each other. The front end of the engine is arranged behind the second cross member. An engine cooling unit including a radiator is arranged in front of the engine and is fixed to the left and right side members. The radiator is arranged rearward of the second cross member, fixed to the left and right side members via a radiator bracket, and fixed to the second cross member via a fixing rod. Supported by.
日本国特開２０１８－３４７５９号公報Japanese Patent Laid-Open No. 2018-34759
　特許文献１に記載の車両のように、左右のサイドメンバと、左右のサイドメンバ同士を連結する複数のクロスメンバとを有する車体フレームでは、複数のクロスメンバは、車体フレームの剛性（特に車体フレームを捩る力に対する剛性）に寄与する。車体フレームの剛性を十分に確保するためには、クロスメンバの数を増やし、または各クロスメンバの大きさ（例えば、板厚または前後方向の長さ）を大きくすることが考えられる。しかし、車体フレームの左右のサイドメンバ間には様々な装置（例えば、エンジンやラジエータ）等が配置されるので、スペースが狭く、クロスメンバの数を増やしたり、クロスメンバを大きくしたりすることが難しい。 In a vehicle body frame having left and right side members and a plurality of cross members connecting the left and right side members as in the vehicle described in Patent Document 1, the plurality of cross members have rigidity of the vehicle body frame (particularly body frame). Rigidity against the twisting force). In order to sufficiently secure the rigidity of the vehicle body frame, it is conceivable to increase the number of cross members or increase the size of each cross member (for example, the plate thickness or the length in the front-rear direction). However, various devices (for example, an engine and a radiator) are arranged between the left and right side members of the vehicle body frame, so that the space is small and it is possible to increase the number of cross members or increase the size of the cross members. difficult.
　そこで、本開示は、左右のサイドメンバ間の限られたスペースの中で車体フレームの剛性を確保することが可能な車体フレームの補強構造の提供を目的とする。 Therefore, the present disclosure aims to provide a reinforcing structure for a vehicle body frame capable of ensuring the rigidity of the vehicle body frame in a limited space between the left and right side members.
　上記課題を解決するため、本開示の第１の態様は、車幅方向両側で車両の前後方向に延びる左右のサイドメンバと、前記左右のサイドメンバ間で車幅方向に延びて前記左右のサイドメンバ同士を連結するクロスメンバとを有する車体フレームの補強構造であって、略板状の熱交換器と熱交換器支持部材とを備える。熱交換器は、前後方向と交叉する状態でクロスメンバの前後方向の一側に配置される。熱交換器支持部材は、左右のサイドメンバ間に配置されて車体フレームに固定され、熱交換器を支持する。熱交換器支持部材は、熱交換器の車幅方向両側の外端部を支持する左右の支持部と、左右の支持部から左右のサイドメンバ側へ延びて左右のサイドメンバに固定される左右の第１ブラケットと、左右の支持部からクロスメンバ側へ延びてクロスメンバに固定される左右の第２ブラケットとを有する。 In order to solve the above problems, a first aspect of the present disclosure is to provide left and right side members extending in the vehicle front-rear direction on both sides in the vehicle width direction and the left and right side members extending in the vehicle width direction between the left and right side members. A reinforcing structure for a vehicle body frame having a cross member connecting members to each other, and including a substantially plate-shaped heat exchanger and a heat exchanger support member. The heat exchanger is arranged on one side of the cross member in the front-rear direction so as to intersect with the front-rear direction. The heat exchanger support member is arranged between the left and right side members and fixed to the vehicle body frame to support the heat exchanger. The heat exchanger support member includes left and right support portions that support outer end portions on both sides of the heat exchanger in the vehicle width direction, and left and right support portions that extend from the left and right support portions to the left and right side member sides and are fixed to the left and right side members. Of the first bracket, and left and right second brackets extending from the left and right support portions to the cross member side and fixed to the cross member.
　上記構成では、熱交換器支持部材の左右の第１ブラケットは、熱交換器の車幅方向の両端部を支持する左右の支持部から左右のサイドメンバ側へ延びて左右のサイドメンバに固定される。このため、車体フレームを捩る力に対する車体フレームの剛性（以下、単に車体フレームの剛性という。）を、熱交換器を利用して向上させることができる。 In the above configuration, the left and right first brackets of the heat exchanger support member are fixed to the left and right side members by extending to the left and right side member sides from the left and right support portions that support both ends of the heat exchanger in the vehicle width direction. It Therefore, the rigidity of the body frame with respect to the force of twisting the body frame (hereinafter, simply referred to as the rigidity of the body frame) can be improved by using the heat exchanger.
　また、熱交換器支持部材の左右の第２ブラケットは、左右の支持部からクロスメンバ側へ延びてクロスメンバに固定される。すなわち、熱交換器が、熱交換器支持部材の左右の第２ブラケットを介してクロスメンバに連結されるので、熱交換器とクロスメンバとが相対的に移動し難くなる。このため、車体フレームの剛性をさらに向上させることができる。 Also, the left and right second brackets of the heat exchanger support member extend from the left and right support portions to the cross member side and are fixed to the cross member. That is, since the heat exchanger is connected to the cross member via the left and right second brackets of the heat exchanger support member, the heat exchanger and the cross member are relatively hard to move. Therefore, the rigidity of the vehicle body frame can be further improved.
　このように、クロスメンバに加えて熱交換器を利用し且つクロスメンバと熱交換器とを連結することによって、車体フレームの剛性を確保することができるので、クロスメンバの数を増やしたり、クロスメンバを大きくしたりすることなく、左右のサイドメンバ間の限られたスペースの中で車体フレームの剛性を確保することができる。 As described above, by using the heat exchanger in addition to the cross member and connecting the cross member and the heat exchanger, the rigidity of the vehicle body frame can be secured, so that the number of cross members can be increased or The rigidity of the vehicle body frame can be secured in the limited space between the left and right side members without increasing the size of the member.
　また、熱交換器とクロスメンバとを連結するので、クロスメンバと熱交換器とを予め一体化した状態で左右のサイドメンバに対して取り付けることができる。このため、左右のサイドメンバに対して固定した状態のクロスメンバに対し、熱交換器を左右のサイドメンバ間の限られたスペースの中で取り付ける場合とは異なり、クロスメンバに対する熱交換器の取付作業の作業性を向上させることができる。 Also, since the heat exchanger and the cross member are connected, the cross member and the heat exchanger can be attached to the left and right side members in a pre-integrated state. Therefore, unlike the case where the heat exchanger is mounted on the cross member fixed to the left and right side members in the limited space between the left and right side members, mounting the heat exchanger on the cross member The workability of work can be improved.
　本開示の第２の態様は、上記第１の態様の車体フレームの補強構造であって、熱交換器支持部材は、熱交換器の上端部を支持する上側支持部と、熱交換器の下端部を支持する下側支持部とを有する。熱交換器支持部材の左右の支持部は、熱交換器の車幅方向の外端部に沿って上下方向に延びる。上側支持部は、熱交換器の上端部に沿って車幅方向に延びて左右の支持部の上端部同士を連結する。下側支持部は、熱交換器の下端部に沿って車幅方向に延びて左右の支持部の下端部同士を連結する。 A second aspect of the present disclosure is the reinforcing structure for a vehicle body frame according to the first aspect, wherein the heat exchanger support member includes an upper support portion that supports an upper end portion of the heat exchanger, and a lower end portion of the heat exchanger. And a lower support portion that supports the portion. The left and right support portions of the heat exchanger support member extend in the vertical direction along the vehicle width direction outer ends of the heat exchanger. The upper support portion extends in the vehicle width direction along the upper end portion of the heat exchanger and connects the upper end portions of the left and right support portions to each other. The lower support portion extends in the vehicle width direction along the lower end portion of the heat exchanger and connects the lower end portions of the left and right support portions to each other.
　上記構成では、熱交換器支持部材の左右の支持部は、熱交換器の車幅方向の外端部に沿って上下方向に延び、上側支持部は、熱交換器の上端部に沿って車幅方向に延びて左右の支持部の上端部同士を連結し、下側支持部は、熱交換器の下端部に沿って車幅方向に延びて左右の支持部の下端部同士を連結する。すなわち、熱交換器支持部材の左右の支持部、上側支持部、及び下側支持部は、熱交換器の外周の全周域を囲って熱交換器を支持する枠（以下、支持枠という。）を構成するので、車体フレームを捩る力が入力した際の熱交換器の変形を支持枠によって抑えることができる。このため、車体フレームの剛性を更に向上させることができる。 In the above structure, the left and right support portions of the heat exchanger support member extend in the vertical direction along the outer end portion of the heat exchanger in the vehicle width direction, and the upper support portion extends along the upper end portion of the heat exchanger. The lower support part extends in the vehicle width direction along the lower end part of the heat exchanger and connects the lower end parts of the left and right support parts. That is, the left and right support parts, the upper support part, and the lower support part of the heat exchanger support member surround the entire outer peripheral region of the heat exchanger and support the heat exchanger (hereinafter referred to as a support frame). ), the deformation of the heat exchanger when the force for twisting the body frame is input can be suppressed by the support frame. Therefore, the rigidity of the vehicle body frame can be further improved.
　本開示の第３の態様は、上記第１の態様または上記第２の態様の車体フレームの補強構造であって、熱交換器支持部材の左右の第２ブラケットは、左右の支持部に一体的に設けられる。 A third aspect of the present disclosure is the reinforcing structure for a vehicle body frame according to the first aspect or the second aspect, wherein the left and right second brackets of the heat exchanger support member are integrally formed on the left and right support portions. It is provided in.
　上記構成では、熱交換器支持部材の左右の第２ブラケットは、左右の支持部に一体的（溶接または一体成形によって一体的）に設けられる。このため、左右の支持部と左右の第２ブラケットとをボルト等によって締結固定する場合とは異なり、左右の支持部と左右の第２ブラケットとを適切に一体化（例えば、広範囲に亘って一体化）することによって、応力の集中を抑えることができる。 In the above configuration, the left and right second brackets of the heat exchanger support member are integrally provided on the left and right support parts (integrated by welding or integral molding). Therefore, unlike the case where the left and right support parts and the left and right second brackets are fastened and fixed by bolts or the like, the left and right support parts and the left and right second brackets are appropriately integrated (for example, integrated over a wide range). It is possible to suppress the concentration of stress.
　また、熱交換器支持部材の左右の第２ブラケットは、左右の支持部に一体的に設けられるので、左右の支持部と左右の第２ブラケットとをボルト等によって締結固定する場合とは異なり、部品点数を削減することができる。 Further, since the left and right second brackets of the heat exchanger support member are integrally provided on the left and right support portions, unlike the case where the left and right support portions and the left and right second brackets are fastened and fixed by bolts or the like, The number of parts can be reduced.
　本開示の第４の態様は、上記第１の態様～上記第３の態様のいずれかの車体フレームの補強構造であって、クロスメンバの左右の両端部は、左右のサイドメンバの上面に載置された状態で左右のサイドメンバの上面に対して固定される。熱交換器支持部材の左右の第１ブラケットは、左右のサイドメンバの上面に載置された状態で左右のサイドメンバの上面に対して固定される。 A fourth aspect of the present disclosure is the reinforcing structure for a vehicle body frame according to any of the first to third aspects, wherein the left and right ends of the cross member are mounted on the upper surfaces of the left and right side members. It is fixed to the upper surfaces of the left and right side members when placed. The left and right first brackets of the heat exchanger support member are fixed to the upper surfaces of the left and right side members while being mounted on the upper surfaces of the left and right side members.
　上記構成では、クロスメンバの左右の両端部が、左右のサイドメンバの上面に載置された状態で左右のサイドメンバの上面に対して固定され、熱交換器支持部材の左右の第１ブラケットが、左右のサイドメンバの上面に載置された状態で左右のサイドメンバの上面に対して固定される。このため、クロスメンバと熱交換器とを熱交換器支持部材によって予めユニット化した状態で、車体フレームのサイドメンバに対して上方から所望の位置に配置して取り付けることができるので、サイドメンバに固定されたクロスメンバに対して熱交換器支持部材を取り付け、その後に熱交換器を熱交換器支持部材に取り付ける場合とは異なり、熱交換器の取付作業の作業性を向上させることができる。 In the above configuration, the left and right ends of the cross member are fixed to the upper surfaces of the left and right side members while being placed on the upper surfaces of the left and right side members, and the first brackets on the left and right of the heat exchanger support member are , Are fixed to the upper surfaces of the left and right side members while being placed on the upper surfaces of the left and right side members. Therefore, the cross member and the heat exchanger can be arranged and attached to the side member of the vehicle body frame at a desired position from above in a state where the cross member and the heat exchanger are unitized in advance by the heat exchanger support member. Unlike the case where the heat exchanger support member is attached to the fixed cross member and then the heat exchanger is attached to the heat exchanger support member, workability of the heat exchanger attachment work can be improved.
　本開示によれば、左右のサイドメンバ間の限られたスペースの中で車体フレームの剛性を確保することができる。 According to the present disclosure, it is possible to secure the rigidity of the vehicle body frame in the limited space between the left and right side members.
図１は、車体フレームの前部の概略斜視図である。FIG. 1 is a schematic perspective view of a front portion of a vehicle body frame. 図２は、車体フレームの前部の概略側面図である。FIG. 2 is a schematic side view of the front portion of the vehicle body frame. 図３は、車体フレームの前部の概略平面図である。FIG. 3 is a schematic plan view of the front portion of the vehicle body frame. 図４は、ラジエータ支持部材の分解斜視図である。FIG. 4 is an exploded perspective view of the radiator support member.
　以下、本開示の一実施形態を図面に基づいて説明する。なお、各図において、ＦＲは車両の前方を、ＵＰは上方を、ＩＮは車幅方向内側をそれぞれ示す。また、以下の説明において、前後方向は車両の前後方向を意味し、左右方向は車両前方を向いた状態での左右方向を意味する。また、図２では、左側のサイドメンバの図示を省略している。 Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction. In the following description, the front-rear direction means the front-rear direction of the vehicle, and the left-right direction means the left-right direction when facing the front of the vehicle. Further, in FIG. 2, the illustration of the left side member is omitted.
　図１～図３に示すように、本実施形態に係る車両１は、梯子状の車体フレーム２と、車体フレーム２の前部に配置されるラジエータ（熱交換器）３と、ラジエータ支持部材（熱交換器支持部材）４とを備える。 As shown in FIGS. 1 to 3, a vehicle 1 according to the present embodiment includes a ladder-shaped vehicle body frame 2, a radiator (heat exchanger) 3 arranged in a front portion of the vehicle body frame 2, and a radiator support member ( Heat exchanger support member) 4.
　車体フレーム２は、車両１の車幅方向両側で前後方向に延びる左右一対のサイドメンバ５と、車幅方向に延びて左右のサイドメンバ５を互いに連結する複数のクロスメンバ６とを有する。左右のサイドメンバ５は、車幅方向内側へ開放する断面Ｕ状にそれぞれ形成され、互いに車幅方向に離間する状態で前後方向に延びる。複数のクロスメンバ６は、左右のサイドメンバ５の前端同士を連結するファーストクロスメンバ７と、ファーストクロスメンバ７の後方に配置されるセカンドクロスメンバ（クロスメンバ）８とを含む。本実施形態では、本開示に係るクロスメンバは、セカンドクロスメンバ８に適用される。 The body frame 2 has a pair of left and right side members 5 extending in the front-rear direction on both sides of the vehicle 1 in the vehicle width direction, and a plurality of cross members 6 extending in the vehicle width direction and connecting the left and right side members 5 to each other. The left and right side members 5 are each formed in a U-shaped cross-section that opens inward in the vehicle width direction, and extend in the front-rear direction while being separated from each other in the vehicle width direction. The plurality of cross members 6 include a first cross member 7 that connects the front ends of the left and right side members 5 and a second cross member (cross member) 8 arranged behind the first cross member 7. In the present embodiment, the cross member according to the present disclosure is applied to the second cross member 8.
　セカンドクロスメンバ８は、前方へ開放する断面Ｕ状に形成されて車幅方向に延びるクロスメンバ本体８ａと、クロスメンバ本体８ａの左右の両端部の上面に固定される左右一対の固定板部８ｂとを有する。クロスメンバ本体８ａの車幅方向の長さＬ１は、左右のサイドメンバ５の車幅方向の離間距離Ｌ２（車幅方向の内端縁同士の距離Ｌ２）よりも僅かに短い。左右の固定板部８ｂは、クロスメンバ本体８ａの左右の両端から車幅方向外側へ突出する突出領域９を有する。左右の固定板部８ｂの突出領域９は、左右のサイドメンバ５の上面５ａに固定される。左右の固定板部８ｂの突出領域９を左右のサイドメンバ５の上面５ａに載置して左右のサイドメンバ５に固定することによって、セカンドクロスメンバ８が左右のサイドメンバ５に対して固定される。 The second cross member 8 is formed in a U-shaped cross-section that opens forward and extends in the vehicle width direction, and a pair of left and right fixing plate portions 8b fixed to the upper surfaces of the left and right ends of the cross member body 8a. Have and. The length L1 of the cross member main body 8a in the vehicle width direction is slightly shorter than the distance L2 in the vehicle width direction between the left and right side members 5 (the distance L2 between the inner edges in the vehicle width direction). The left and right fixing plate portions 8b have projecting regions 9 that project outward from the left and right ends of the cross member body 8a in the vehicle width direction. The protruding regions 9 of the left and right fixing plate portions 8b are fixed to the upper surfaces 5a of the left and right side members 5. The second cross member 8 is fixed to the left and right side members 5 by placing the protruding regions 9 of the left and right fixing plate portions 8b on the upper surfaces 5a of the left and right side members 5 and fixing them to the left and right side members 5. It
　ラジエータ３は、車両１のエンジン（図示省略）の冷却水を冷却するための熱交換器であって、前後方向と交叉する略板状に形成され、左右のサイドメンバ５間のセカンドクロスメンバ８の後方（前後方向の一側）の近傍に配置され、ラジエータ支持部材４を介して車体フレーム２に対して固定される。ラジエータ３は、下端部側が上端部側よりも前方に配置され、鉛直方向に対して傾斜している。ラジエータ３の下端部は、車体フレーム２よりも下方に配置され、ラジエータ３の上端部は、車体フレーム２よりも上方に配置される。ラジエータ３の前面側には、エンジンへの吸気を冷却するインタークーラ１０が配置され、ラジエータ３に対して固定されている。 The radiator 3 is a heat exchanger for cooling the cooling water of the engine (not shown) of the vehicle 1, is formed in a substantially plate shape intersecting the front-rear direction, and has a second cross member 8 between the left and right side members 5. Is disposed near the rear (one side in the front-rear direction) of the vehicle and is fixed to the vehicle body frame 2 via the radiator support member 4. The radiator 3 is arranged such that the lower end side thereof is located ahead of the upper end side thereof and is inclined with respect to the vertical direction. A lower end portion of the radiator 3 is arranged below the vehicle body frame 2, and an upper end portion of the radiator 3 is arranged above the vehicle body frame 2. An intercooler 10 that cools intake air to the engine is arranged on the front surface side of the radiator 3 and is fixed to the radiator 3.
　図２～図４に示すように、ラジエータ支持部材４は、矩形枠状に形成される支持枠１１と、支持枠１１を左右のサイドメンバ５に対して固定する左右一対の第１ブラケット１２と、支持枠１１をセカンドクロスメンバ８対して固定する左右一対の第２ブラケット１３とを有し、左右のサイドメンバ５間のセカンドクロスメンバ８の後方の近傍に配置されてラジエータ３を支持する。 As shown in FIGS. 2 to 4, the radiator support member 4 includes a support frame 11 formed in a rectangular frame shape, and a pair of left and right first brackets 12 for fixing the support frame 11 to the left and right side members 5. The support frame 11 has a pair of left and right second brackets 13 for fixing the support frame 11 to the second cross member 8, and is arranged near the rear of the second cross member 8 between the left and right side members 5 to support the radiator 3.
　ラジエータ支持部材４の支持枠１１は、上方へ開放する断面Ｕ状に形成されて車幅方向に延びる下枠部（下側支持部）１１ａと、車幅方向内側へ開放する断面Ｕ状に形成されて下枠部１１ａの左右の両端部から上方へ延びる左右一対の横枠部（左右の支持部）１１ｂ，１１ｃと、下方へ開放する断面Ｕ状に形成されて車幅方向に延びて左右の横枠部１１ｂ，１１ｃの上端部同士を連結する上枠部（上側支持部）１１ｄとを有する。下枠部１１ａ、左右の横枠部１１ｂ，１１ｃ、及び上枠部１１ｄは、その内部にラジエータ３を挿入可能なラジエータ挿入空間１４ａ～１４ｄを区画する。下枠部１１ａのラジエータ挿入空間１４ａと左右の横枠部１１ｂ，１１ｃのラジエータ挿入空間１４ｂ，１４ｃとは、支持枠１１の左右の下端部で互いに連通し、上枠部１１ｄのラジエータ挿入空間１４ｄと左右の横枠部１１ｂ，１１ｃのラジエータ挿入空間１４ｂ，１４ｃとは、支持枠１１の左右の上端部で互いに連通する。ラジエータ挿入空間１４ａ～１４ｄの前後方向の長さは、ラジエータ３の厚さ（前後方向の長さ）よりも大きく設定される。下枠部１１ａは、そのラジエータ挿入空間１４ａにラジエータ３の下端部を挿入した状態でラジエータ３の下端部に沿って車幅方向に延び、ラジエータ３の下端部を下方から支持する。左右の横枠部１１ｂ，１１ｃは、そのラジエータ挿入空間１４ｂ，１４ｃにラジエータ３の車幅方向の外端部を挿入した状態でラジエータ３の車幅方向の外端部に沿って上下方向に延び、ラジエータ３の車幅方向の外端部を支持する。上枠部１１ｄは、そのラジエータ挿入空間１４ｄにラジエータ３の上端部を挿入した状態でラジエータ３の上端部に沿って車幅方向に延び、ラジエータ３の上端部を支持する。すなわち、ラジエータ支持部材４の支持枠１１は、ラジエータ３の外周部を全周域に亘って支持する。 The support frame 11 of the radiator support member 4 is formed in a U-shaped cross section that opens upward, and a lower frame portion (lower support portion) 11a that extends in the vehicle width direction and a U-shaped cross section that opens in the vehicle width direction. A pair of left and right horizontal frame portions (left and right support portions) 11b and 11c extending upward from both left and right end portions of the lower frame portion 11a, and a U-shaped cross section that opens downward and extending in the vehicle width direction. And an upper frame portion (upper side support portion) 11d that connects upper end portions of the horizontal frame portions 11b and 11c to each other. The lower frame part 11a, the left and right lateral frame parts 11b and 11c, and the upper frame part 11d define radiator insertion spaces 14a to 14d into which the radiator 3 can be inserted. The radiator insertion space 14a of the lower frame portion 11a and the radiator insertion spaces 14b and 14c of the left and right lateral frame portions 11b and 11c communicate with each other at the left and right lower end portions of the support frame 11, and the radiator insertion space 14d of the upper frame portion 11d. And the radiator insertion spaces 14b and 14c of the left and right lateral frame portions 11b and 11c communicate with each other at the left and right upper end portions of the support frame 11. The length of the radiator insertion spaces 14a to 14d in the front-rear direction is set to be larger than the thickness of the radiator 3 (length in the front-rear direction). The lower frame portion 11a extends in the vehicle width direction along the lower end portion of the radiator 3 with the lower end portion of the radiator 3 inserted in the radiator insertion space 14a, and supports the lower end portion of the radiator 3 from below. The left and right lateral frame portions 11b and 11c extend vertically along the outer ends of the radiator 3 in the vehicle width direction with the outer ends of the radiator 3 in the vehicle width direction inserted into the radiator insertion spaces 14b and 14c. , Supports the outer end portion of the radiator 3 in the vehicle width direction. The upper frame portion 11d extends in the vehicle width direction along the upper end portion of the radiator 3 with the upper end portion of the radiator 3 inserted in the radiator insertion space 14d, and supports the upper end portion of the radiator 3. That is, the support frame 11 of the radiator support member 4 supports the outer peripheral portion of the radiator 3 over the entire peripheral area.
　ラジエータ支持部材４の左右の第１ブラケット１２は、支持枠１１の左右の横枠部１１ｂ，１１ｃの車幅方向外側面に対して所定の位置Ｐ１で溶着される側板部１７と、側板部１７の上端縁から曲折して車幅方向外側へ延びて左右のサイドメンバ５に固定される上板部１８とを一体的に有する。左右の第１ブラケット１２は、上板部１８を左右のサイドメンバ５に固定する前に、支持枠１１に対して溶着によって一体化されている。すなわち、左右の第１ブラケット１２は、溶着によって支持枠１１に一体的に設けられる。側板部１７は、ラジエータ３の車幅方向外側面に沿って上下方向に延びる。上板部１８は、左右の横枠部１１ｂ，１１ｃの車幅方向外側面から車幅方向外側へ突出し、左右のサイドメンバ５の上面５ａに載置された状態で左右のサイドメンバ５の上面５ａに対してボルト１５によって締結固定される。 The left and right first brackets 12 of the radiator support member 4 include a side plate portion 17 and a side plate portion 17 which are welded at predetermined positions P1 to the vehicle width direction outer side surfaces of the left and right lateral frame portions 11b and 11c of the support frame 11. It integrally has an upper plate portion 18 that is bent from the upper end edge of the above and extends outward in the vehicle width direction and is fixed to the left and right side members 5. The left and right first brackets 12 are integrated with the support frame 11 by welding before fixing the upper plate portion 18 to the left and right side members 5. That is, the left and right first brackets 12 are integrally provided on the support frame 11 by welding. The side plate portion 17 extends in the vertical direction along the vehicle width direction outer side surface of the radiator 3. The upper plate portion 18 protrudes outward in the vehicle width direction from the outer surface in the vehicle width direction of the left and right lateral frame portions 11b and 11c, and is placed on the upper surface 5a of the left and right side members 5 so that the upper surface of the left and right side members 5 is 5a is fastened and fixed by bolts 15.
　ラジエータ支持部材４の左右の第２ブラケット１３は、支持枠１１の左右の横枠部１１ｂ，１１ｃに固定されて左右の横枠部１１ｂ，１１ｃから前上方へ延びる側板部１９と、側板部１９の前端縁から曲折して車幅方向外側へ延びてセカンドクロスメンバ８に固定される前板部２０とを一体的に有する。左右の第２ブラケット１３は、前板部２０をセカンドクロスメンバ８に固定する前に、支持枠１１に対して溶着によって一体化されている。すなわち、左右の第２ブラケット１３は、溶着によって支持枠１１に一体的に設けられる。側板部１９の後下端部は、支持枠１１の左右の横枠部１１ｂ，１１ｃのうち左右の第１ブラケット１２よりも下方の車幅方向外側面（本実施形態では、左右の横枠部１１ｂ，１１ｃの下端部の車幅方向外側面）に対して所定の位置Ｐ２で溶着される。側板部１９は、左右の横枠部１１ｂ，１１ｃから前上方へ突出し、セカンドクロスメンバ８の後面（一側の面）８ｃに向かって延びる。前板部２０は、セカンドクロスメンバ８の後面（一側の面）８ｃに面接触した状態でセカンドクロスメンバ８の後面８ｃに対してボルト１６によって締結固定される。 The left and right second brackets 13 of the radiator support member 4 are fixed to the left and right lateral frame portions 11b and 11c of the support frame 11, and a side plate portion 19 extending from the left and right lateral frame portions 11b and 11c forward and upward, and a side plate portion 19. It integrally has a front plate portion 20 that is bent from the front end edge of the vehicle and extends outward in the vehicle width direction and is fixed to the second cross member 8. The left and right second brackets 13 are integrated with the support frame 11 by welding before fixing the front plate portion 20 to the second cross member 8. That is, the left and right second brackets 13 are integrally provided on the support frame 11 by welding. The rear lower end portion of the side plate portion 19 is a vehicle width direction outer surface below the left and right first brackets 12 of the left and right lateral frame portions 11b and 11c of the support frame 11 (in the present embodiment, the left and right lateral frame portions 11b). , 11c to the outer side surface in the vehicle width direction of the lower end portion) at a predetermined position P2. The side plate portion 19 projects forward and upward from the left and right lateral frame portions 11b and 11c and extends toward the rear surface (one surface) 8c of the second cross member 8. The front plate portion 20 is fastened and fixed by a bolt 16 to the rear surface 8c of the second cross member 8 while being in surface contact with the rear surface (the surface on one side) 8c of the second cross member 8.
　セカンドクロスメンバ８及びラジエータ３は、ラジエータ支持部材４によってユニット化された状態で左右のサイドメンバ５に対して固定される。セカンドクロスメンバ８及びラジエータ３を左右のサイドメンバ５に対して固定する際には、ユニット化したセカンドクロスメンバ８及びラジエータ３を、左右のサイドメンバ５間の所望の位置に上方から配置し、セカンドクロスメンバ８の左右の固定板部８ｂの突出領域９、及びラジエータ支持部材４の左右の第１ブラケット１２の上板部１８を、左右のサイドメンバ５の上面５ａに載置して左右のサイドメンバ５の上面５ａに対して固定する。 The second cross member 8 and the radiator 3 are fixed to the left and right side members 5 while being unitized by the radiator support member 4. When fixing the second cross member 8 and the radiator 3 to the left and right side members 5, the unitized second cross member 8 and the radiator 3 are arranged from above at a desired position between the left and right side members 5, The protruding regions 9 of the left and right fixed plate portions 8b of the second cross member 8 and the upper plate portions 18 of the left and right first brackets 12 of the radiator support member 4 are placed on the upper surfaces 5a of the left and right side members 5 and left and right. It is fixed to the upper surface 5a of the side member 5.
　上記のように構成された車両１では、ラジエータ３を支持するラジエータ支持部材４の左右の第１ブラケット１２が左右のサイドメンバ５に固定される。すなわち、ラジエータ３の左右の両側がラジエータ支持部材４を介して左右のサイドメンバ５に固定されるので、車体フレーム２を捩る力に対する車体フレーム２の剛性（以下、単に車体フレーム２の剛性という。）を、ラジエータ３を利用して向上させることができる。 In the vehicle 1 configured as described above, the left and right first brackets 12 of the radiator support member 4 that supports the radiator 3 are fixed to the left and right side members 5. That is, since the left and right sides of the radiator 3 are fixed to the left and right side members 5 via the radiator support member 4, the rigidity of the vehicle body frame 2 against the force of twisting the vehicle body frame 2 (hereinafter, simply referred to as the rigidity of the vehicle body frame 2). ) Can be improved by utilizing the radiator 3.
　また、ラジエータ３は、ラジエータ支持部材４の左右の第２ブラケット１３を介してセカンドクロスメンバ８に連結されるので、ラジエータ３とセカンドクロスメンバ８とが相対的に移動し難くなる。このため、車体フレーム２の剛性をさらに向上させることができる。 Further, since the radiator 3 is connected to the second cross member 8 via the second brackets 13 on the left and right of the radiator support member 4, the radiator 3 and the second cross member 8 are relatively hard to move. Therefore, the rigidity of the vehicle body frame 2 can be further improved.
　このように、本実施形態によれば、セカンドクロスメンバ８に加えてラジエータ３を利用し且つセカンドクロスメンバ８とラジエータ３とを連結することによって、車体フレーム２の剛性を確保することができるので、クロスメンバ６の数を増やしたり、セカンドクロスメンバ８を大きくしたりすることなく、左右のサイドメンバ５間の限られたスペースの中で車体フレーム２の剛性を確保することができる。 Thus, according to the present embodiment, the rigidity of the vehicle body frame 2 can be ensured by utilizing the radiator 3 in addition to the second cross member 8 and connecting the second cross member 8 and the radiator 3. The rigidity of the vehicle body frame 2 can be secured in the limited space between the left and right side members 5 without increasing the number of cross members 6 or enlarging the second cross member 8.
　また、ラジエータ支持部材４は、矩形枠状に形成される支持枠１１を有し、係る支持枠１１によってラジエータ３の外周部を全周域に亘って支持するので、車体フレーム２を捩る力が入力した際のラジエータ３の変形を支持枠１１によって抑えることができる。このように、支持枠１１によってラジエータ３を変形し難くすることができるので、車体フレーム２の剛性を更に向上させることができる。 Further, the radiator support member 4 has a support frame 11 formed in a rectangular frame shape, and since the outer peripheral portion of the radiator 3 is supported by the support frame 11 over the entire circumference, the force for twisting the vehicle body frame 2 is reduced. The deformation of the radiator 3 at the time of input can be suppressed by the support frame 11. As described above, since the radiator 3 can be made difficult to be deformed by the support frame 11, the rigidity of the vehicle body frame 2 can be further improved.
　また、ラジエータ支持部材４の左右の第２ブラケット１３は、溶着によって支持枠１１の左右の横枠部１１ｂ，１１ｃに一体的に設けられる。このため、左右の第２ブラケット１３と支持枠１１の左右の横枠部１１ｂ，１１ｃとをボルト等によって締結固定する場合とは異なり、左右の第２ブラケット１３と支持枠１１の左右の横枠部１１ｂ，１１ｃとを適切に一体化（例えば、広範囲に亘って一体化）することによって、応力の集中を抑えることができる。また、左右の第２ブラケット１３と支持枠１１の左右の横枠部１１ｂ，１１ｃとをボルト等によって締結固定する場合とは異なり、部品点数を削減することができる。 The left and right second brackets 13 of the radiator support member 4 are integrally provided on the left and right lateral frame portions 11b and 11c of the support frame 11 by welding. Therefore, unlike the case where the left and right second brackets 13 and the left and right horizontal frame portions 11b and 11c of the support frame 11 are fastened and fixed with bolts or the like, the left and right second brackets 13 and the left and right horizontal frames of the support frame 11 are provided. By appropriately integrating the parts 11b and 11c (for example, integrating over a wide range), the concentration of stress can be suppressed. Further, unlike the case where the left and right second brackets 13 and the left and right lateral frame portions 11b and 11c of the support frame 11 are fastened and fixed with bolts or the like, the number of parts can be reduced.
　また、セカンドクロスメンバ８及びラジエータ３は、ラジエータ支持部材４によってユニット化された状態で左右のサイドメンバ５に対して固定されるので、左右のサイドメンバ５に対して固定した状態のセカンドクロスメンバ８に対し、ラジエータ３を左右のサイドメンバ５間の限られたスペースの中で取り付ける場合とは異なり、セカンドクロスメンバ８に対するラジエータ３の取付作業の作業性を向上させることができる。また、例えば、エンジン、エンジンの出力軸に連結されるラジエータファン（図示省略）、ラジエータ３、インタークーラ１０、及びセカンドクロスメンバ８を、ユニット化した状態で左右のサイドメンバ５に対して固定する場合には、左右のサイドメンバ５間の限られたスペースの中での作業を減らすことができるので、取付作業の作業性が更に向上する。 Further, since the second cross member 8 and the radiator 3 are fixed to the left and right side members 5 in a state of being unitized by the radiator support member 4, the second cross member fixed to the left and right side members 5 is fixed. On the other hand, unlike the case where the radiator 3 is mounted in the limited space between the left and right side members 5, the workability of mounting the radiator 3 to the second cross member 8 can be improved. Further, for example, the engine, a radiator fan (not shown) connected to the output shaft of the engine, the radiator 3, the intercooler 10, and the second cross member 8 are fixed to the left and right side members 5 in a unitized state. In this case, the work in the limited space between the left and right side members 5 can be reduced, which further improves the workability of the mounting work.
　また、ユニット化したセカンドクロスメンバ８及びラジエータ３を、左右のサイドメンバ５間の所望の位置に上方から配置し、セカンドクロスメンバ８の左右の固定板部８ｂの突出領域９、及びラジエータ支持部材４の左右の第１ブラケット１２の上板部１８を、左右のサイドメンバ５の上面５ａに載置して左右のサイドメンバ５の上面５ａに対して固定する。このため、左右のサイドメンバ５に固定されたセカンドクロスメンバ８に対してラジエータ支持部材４を取り付け、その後にラジエータ３をラジエータ支持部材４に取り付ける場合とは異なり、ラジエータ３の取付作業の作業性を向上させることができる。 Also, the unitized second cross member 8 and the radiator 3 are arranged from above at a desired position between the left and right side members 5, and the protruding regions 9 of the left and right fixing plate portions 8b of the second cross member 8 and the radiator support member. The upper plate portions 18 of the left and right first brackets 12 are placed on the upper surfaces 5a of the left and right side members 5 and fixed to the upper surfaces 5a of the left and right side members 5. Therefore, unlike the case where the radiator support member 4 is attached to the second cross member 8 fixed to the left and right side members 5, and then the radiator 3 is attached to the radiator support member 4, workability of the attachment work of the radiator 3 is improved. Can be improved.
　なお、本実施形態では、左右の第１ブラケット１２を、溶着によって支持枠１１に一体的に設けたが、左右の第１ブラケット１２を支持枠１１の左右の横枠部１１ｂ，１１ｃと一体成形してもよい。或いは、左右の第１ブラケット１２を、支持枠１１とは別体に形成し、支持枠１１に対してボルト等によって締結固定してもよい。 In the present embodiment, the left and right first brackets 12 are integrally provided on the support frame 11 by welding, but the left and right first brackets 12 are integrally formed with the left and right lateral frame portions 11b and 11c of the support frame 11. You may. Alternatively, the left and right first brackets 12 may be formed separately from the support frame 11 and fastened and fixed to the support frame 11 with bolts or the like.
　また、本実施形態では、左右の第１ブラケット１２を、側板部１７と上板部１８とによってＬ状に形成したが、左右の第１ブラケット１２の形状はこれに限定されるものではなく、ラジエータ支持部材４の左右の横枠部１１ｂ，１１ｃから左右のサイドメンバ５側へ延びて左右のサイドメンバ５に固定可能な形状であれば、他の形状であってもよい。 Further, in the present embodiment, the left and right first brackets 12 are formed in an L shape by the side plate portion 17 and the upper plate portion 18, but the shape of the left and right first brackets 12 is not limited to this. Other shapes may be used as long as they extend from the left and right lateral frame portions 11b and 11c of the radiator support member 4 toward the left and right side members 5 and can be fixed to the left and right side members 5.
　また、本実施形態では、左右の第２ブラケット１３を、溶着によって支持枠１１に一体的に設けたが、左右の第１ブラケット１２を支持枠１１の左右の横枠部１１ｂ，１１ｃと一体成形してもよい。或いは、左右の第２ブラケット１３を、支持枠１１とは別体に形成し、支持枠１１に対してボルト等によって締結固定してもよい。 Further, in the present embodiment, the left and right second brackets 13 are integrally provided on the support frame 11 by welding, but the left and right first brackets 12 are integrally formed with the left and right horizontal frame portions 11b and 11c of the support frame 11. You may. Alternatively, the left and right second brackets 13 may be formed separately from the support frame 11 and fastened and fixed to the support frame 11 with bolts or the like.
　また、本実施形態では、左右の第２ブラケット１３を、側板部１９と前板部２０とによってＬ状に形成したが、左右の第２ブラケット１３の形状はこれに限定されるものではなく、ラジエータ支持部材４の左右の横枠部１１ｂ，１１ｃからセカンドクロスメンバ８側へ延びてセカンドクロスメンバ８に固定可能な形状であれば、他の形状であってもよい。 Further, in the present embodiment, the left and right second brackets 13 are formed in an L shape by the side plate portion 19 and the front plate portion 20, but the shape of the left and right second brackets 13 is not limited to this. Other shapes may be used as long as they extend from the left and right lateral frame portions 11b and 11c of the radiator support member 4 toward the second cross member 8 and can be fixed to the second cross member 8.
　また、本実施形態では、セカンドクロスメンバ８及びラジエータ３を、ラジエータ支持部材４によってユニット化された状態で左右のサイドメンバ５に対して固定したが、これに限定されるものではない。例えば、左右のサイドメンバ５に固定されたセカンドクロスメンバ８に対してラジエータ支持部材４を固定してもよい。この場合、セカンドクロスメンバ８の左右の固定板部８ｂを、左右のサイドメンバ５の上面５ａに載置することなく、セカンドクロスメンバ８の左右の両端部を、左右のサイドメンバ５の内部の空間に挿入した状態で固定してもよい。 Further, in the present embodiment, the second cross member 8 and the radiator 3 are fixed to the left and right side members 5 in a state of being unitized by the radiator support member 4, but the present invention is not limited to this. For example, the radiator support member 4 may be fixed to the second cross member 8 fixed to the left and right side members 5. In this case, the left and right fixed plate portions 8b of the second cross member 8 are not placed on the upper surfaces 5a of the left and right side members 5, and the left and right end portions of the second cross member 8 are placed inside the left and right side members 5. You may fix it in the state inserted in the space.
　また、本実施形態では、ラジエータ支持部材４の支持枠１１の下枠部１１ａ、左右の横枠部１１ｂ，１１ｃ、及び上枠部１１ｄの形状を断面Ｕ状としたが、下枠部１１ａ、左右の横枠部１１ｂ，１１ｃ、及び上枠部１１ｄの形状はこれに限定されるものではなく、ラジエータ３の外周縁部を支持可能な形状であれば、他の形状であってもよい。 Further, in the present embodiment, the lower frame portion 11a of the support frame 11 of the radiator support member 4, the left and right lateral frame portions 11b and 11c, and the upper frame portion 11d have a U-shaped cross section, but the lower frame portion 11a, The shapes of the left and right lateral frame portions 11b and 11c and the upper frame portion 11d are not limited to this, and may be other shapes as long as they can support the outer peripheral edge portion of the radiator 3.
　また、本実施形態では、ラジエータ支持部材４に矩形枠状の支持枠１１を設けたが、枠状の部材を設けなくてもよい。例えば、ラジエータ支持部材４に、上枠部１１ｄ及び下枠部１１ａの一方または双方を設けることなく、左右の横枠部１１ｂ，１１ｃによってラジエータ３の車幅方向の外端部を支持してもよい。この場合、左右の横枠部１１ｂ，１１ｃの形状は、ラジエータ３の車幅方向の外端部に沿って上下方向に延びる形状に限定されるものではなく、ラジエータ３の車幅方向の外端部を支持可能な形状であれば、他の形状であってもよい。 Further, although the radiator support member 4 is provided with the rectangular frame-shaped support frame 11 in the present embodiment, the frame-shaped member may not be provided. For example, the radiator support member 4 may support the outer end portion of the radiator 3 in the vehicle width direction by the left and right lateral frame portions 11b and 11c without providing one or both of the upper frame portion 11d and the lower frame portion 11a. Good. In this case, the shape of the left and right lateral frame portions 11b and 11c is not limited to the shape that extends in the up-down direction along the outer end portion of the radiator 3 in the vehicle width direction, but the outer end portions of the radiator 3 in the vehicle width direction. Other shapes may be used as long as they can support the part.
　また、本実施形態では、ラジエータ３の前面側にインタークーラ１０を設けたが、インタークーラ１０を設けなくてもよいし、或いは、インタークーラ１０の前方にエアコンのコンデンサを更に設けてもよい。 Further, in the present embodiment, the intercooler 10 is provided on the front side of the radiator 3, but the intercooler 10 may not be provided, or a condenser of an air conditioner may be further provided in front of the intercooler 10.
　以上、本開示について、上記実施形態に基づいて説明を行ったが、本開示は上記実施形態の内容に限定されるものではなく、当然に本開示を逸脱しない範囲で適宜変更が可能である。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例および運用技術等は全て本開示の範疇に含まれることは勿論である。 The present disclosure has been described above based on the above embodiment, but the present disclosure is not limited to the contents of the above embodiment, and can of course be appropriately modified without departing from the present disclosure. That is, it goes without saying that all other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are included in the scope of the present disclosure.
　例えば、上記実施形態では、ラジエータ支持部材４をセカンドクロスメンバ８に連結したが、ラジエータ３をファーストクロスメンバ７の後方近傍に配置する場合には、ラジエータ支持部材４をファーストクロスメンバ７に連結してもよい。すなわち、ラジエータ支持部材４と連結されるクロスメンバ６は、セカンドクロスメンバ８に限定されるものではない。 For example, in the above embodiment, the radiator support member 4 is connected to the second cross member 8, but when the radiator 3 is arranged near the rear of the first cross member 7, the radiator support member 4 is connected to the first cross member 7. May be. That is, the cross member 6 connected to the radiator support member 4 is not limited to the second cross member 8.
　また、上記実施形態では、ラジエータ支持部材４によってラジエータ３を支持したが、ラジエータ支持部材４によって支持される熱交換器は、ラジエータ３に限定されるものではなく、他の熱交換器（例えば、インタークーラ１０）であってもよい。 Further, in the above embodiment, the radiator 3 is supported by the radiator support member 4, but the heat exchanger supported by the radiator support member 4 is not limited to the radiator 3 and other heat exchangers (for example, It may be an intercooler 10).
　また、上記実施形態では、熱交換器（ラジエータ３）を所定のクロスメンバ６（セカンドクロスメンバ８）の後方に配置したが、熱交換器を上記所定のクロスメンバ６の前方に配置して、熱交換器と上記所定のクロスメンバ６とをラジエータ支持部材４によって連結してもよい。 Further, in the above embodiment, the heat exchanger (radiator 3) is arranged behind the predetermined cross member 6 (second cross member 8), but the heat exchanger is arranged in front of the predetermined cross member 6, The heat exchanger and the predetermined cross member 6 may be connected by the radiator support member 4.
　本出願は、2019年01月08日付で出願された日本国特許出願（特願2019-1061）に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on a Japanese patent application filed on January 08, 2019 (Japanese Patent Application 2019-1061), the contents of which are incorporated herein by reference.
　本開示に係る車体フレームの補強構造は、左右のサイドメンバ間にラジエータを配置する車両に広く適用することができる。 The body frame reinforcing structure according to the present disclosure can be widely applied to vehicles in which a radiator is arranged between the left and right side members.
１：車両
２：車体フレーム
３：ラジエータ（熱交換器）
４：ラジエータ支持部材（熱交換器支持部材）
５：左右のサイドメンバ
５ａ：左右のサイドメンバの上面
８：セカンドクロスメンバ（クロスメンバ）
１１：支持枠
１１ａ：下枠部（下側支持部）
１１ｂ，１１ｃ：左右の横枠部（左右の支持部）
１１ｄ：上枠部（上側支持部）
１２：左右の第１ブラケット
１３：左右の第２ブラケット 1: Vehicle 2: Body frame 3: Radiator (heat exchanger)
4: Radiator support member (heat exchanger support member)
5: Left and right side members 5a: Upper surfaces of left and right side members 8: Second cross member (cross member)
11: Support frame 11a: Lower frame part (lower support part)
11b, 11c: left and right horizontal frame portions (left and right support portions)
11d: Upper frame part (upper side support part)
12: Left and right first brackets 13: Left and right second brackets

Claims (4)

  1. 　車幅方向両側で車両の前後方向に延びる左右のサイドメンバと、前記左右のサイドメンバ間で車幅方向に延びて前記左右のサイドメンバ同士を連結するクロスメンバとを有する車体フレームの補強構造であって、
    　前後方向と交叉する状態で前記クロスメンバの前後方向の一側に配置される略板状の熱交換器と、
    　前記左右のサイドメンバ間に配置されて前記車体フレームに固定され、前記熱交換器を支持する熱交換器支持部材と、を備え、
    　前記熱交換器支持部材は、前記熱交換器の車幅方向両側の外端部を支持する左右の支持部と、前記左右の支持部から前記左右のサイドメンバ側へ延びて前記左右のサイドメンバに固定される左右の第１ブラケットと、前記左右の支持部から前記クロスメンバ側へ延びて前記クロスメンバに固定される左右の第２ブラケットとを有する
    　ことを特徴とする車体フレームの補強構造。     A reinforcing structure for a vehicle body frame having left and right side members extending in the vehicle front-rear direction on both sides in the vehicle width direction and cross members extending in the vehicle width direction between the left and right side members to connect the left and right side members to each other. There
    A substantially plate-shaped heat exchanger arranged on one side of the cross member in the front-rear direction in a state of intersecting the front-rear direction,
    A heat exchanger support member that is disposed between the left and right side members and is fixed to the vehicle body frame, and that supports the heat exchanger,
    The heat exchanger support member includes left and right support portions that support outer ends of the heat exchanger on both sides in the vehicle width direction, and the left and right side members that extend from the left and right support portions toward the left and right side members. A left and right first bracket fixed to the cross member, and left and right second brackets extending from the left and right support portions to the cross member side and fixed to the cross member.
  2. 　請求項１に記載の車体フレームの補強構造であって、
    　前記熱交換器支持部材は、前記熱交換器の上端部を支持する上側支持部と、前記熱交換器の下端部を支持する下側支持部とを有し、
    　前記熱交換器支持部材の前記左右の支持部は、前記熱交換器の車幅方向の外端部に沿って上下方向に延び、
    　前記上側支持部は、前記熱交換器の上端部に沿って車幅方向に延びて前記左右の支持部の上端部同士を連結し、
    　前記下側支持部は、前記熱交換器の下端部に沿って車幅方向に延びて前記左右の支持部の下端部同士を連結する
    　ことを特徴とする車体フレームの補強構造。     The reinforcing structure for a vehicle body frame according to claim 1,
    The heat exchanger support member has an upper support portion that supports an upper end portion of the heat exchanger, and a lower support portion that supports a lower end portion of the heat exchanger,
    The left and right support portions of the heat exchanger support member extend in the vertical direction along the vehicle width direction outer end portion of the heat exchanger,
    The upper support portion extends in the vehicle width direction along the upper end portion of the heat exchanger to connect the upper end portions of the left and right support portions to each other,
    The reinforcing structure for a vehicle body frame, wherein the lower support portion extends in the vehicle width direction along the lower end portion of the heat exchanger to connect the lower end portions of the left and right support portions to each other.
  3. 　請求項１または請求項２に記載の車体フレームの補強構造であって、
    　前記熱交換器支持部材の前記左右の第２ブラケットは、前記左右の支持部に一体的に設けられる
    　ことを特徴とする車体フレームの補強構造。     A reinforcing structure for a vehicle body frame according to claim 1 or 2, wherein
    The reinforcing structure for a vehicle body frame, wherein the left and right second brackets of the heat exchanger support member are integrally provided on the left and right support portions.
  4. 　請求項１～請求項３のいずれかに記載の車体フレームの補強構造であって、
    　前記クロスメンバの左右の両端部は、前記左右のサイドメンバの上面に載置された状態で前記左右のサイドメンバの上面に対して固定され、
    　前記熱交換器支持部材の前記左右の第１ブラケットは、前記左右のサイドメンバの上面に載置された状態で前記左右のサイドメンバの上面に対して固定される
    　ことを特徴とする車体フレームの補強構造。     The reinforcing structure for a vehicle body frame according to any one of claims 1 to 3,
    The left and right ends of the cross member are fixed to the upper surfaces of the left and right side members while being placed on the upper surfaces of the left and right side members,
    The left and right first brackets of the heat exchanger support member are fixed to the upper surfaces of the left and right side members while being mounted on the upper surfaces of the left and right side members. Reinforced structure.
PCT/JP2019/051385 2019-01-08 2019-12-27 Body frame reinforcement structure WO2020145192A1 (en)

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JPH02121427U (en) * 1989-03-17 1990-10-02
JP2014210466A (en) * 2013-04-17 2014-11-13 株式会社豊田自動織機 Radiator assembly structure
JP2018024365A (en) * 2016-08-12 2018-02-15 いすゞ自動車株式会社 Front structure of vehicle

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EP2363336B1 (en) * 2010-03-02 2012-09-19 Iveco Magirus Ag Chassis of a forward control truck with a tiltable cab
FR3048642B1 (en) * 2016-03-09 2018-03-02 Valeo Systemes Thermiques COOLING SYSTEM OF A MOTOR VEHICLE AND A SUPPORT FOR FRONT-SIDE MODULE OF SUCH VEHICLE ADAPTED FOR THIS COOLING SYSTEM
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JPH02121427U (en) * 1989-03-17 1990-10-02
JP2014210466A (en) * 2013-04-17 2014-11-13 株式会社豊田自動織機 Radiator assembly structure
JP2018024365A (en) * 2016-08-12 2018-02-15 いすゞ自動車株式会社 Front structure of vehicle

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