WO2017068973A1 - Body frame structure - Google Patents

Body frame structure Download PDF

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Publication number
WO2017068973A1
WO2017068973A1 PCT/JP2016/079556 JP2016079556W WO2017068973A1 WO 2017068973 A1 WO2017068973 A1 WO 2017068973A1 JP 2016079556 W JP2016079556 W JP 2016079556W WO 2017068973 A1 WO2017068973 A1 WO 2017068973A1
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WO
WIPO (PCT)
Prior art keywords
plate portion
cross member
reinforcing
width direction
vehicle width
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PCT/JP2016/079556
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French (fr)
Japanese (ja)
Inventor
詩帆 阿部
隆元 鈴木
将司 川尻
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いすゞ自動車株式会社
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Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2017068973A1 publication Critical patent/WO2017068973A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members

Definitions

  • This disclosure relates to a body frame structure.
  • Patent Document 1 describes a vehicle body frame in which a first cross member is installed at the front ends of left and right side members and a second cross member is installed on the left and right side members behind the first cross member.
  • the second cross member of Patent Document 1 contributes to an increase in the rigidity of the vehicle body frame, but on the other hand, it reduces the arrangement space for in-vehicle parts between the left and right side members.
  • an object of the present disclosure is to provide a vehicle body frame structure capable of ensuring a desired rigidity without narrowing the arrangement space of the in-vehicle parts between the left and right side members.
  • the vehicle body frame structure of the present disclosure includes a pair of left and right side members, a cross member, and a pair of left and right reinforcements.
  • the side member integrally includes a side member side plate portion, a side member upper plate portion, and a side member lower plate portion, and extends in the front-rear direction on both sides in the vehicle width direction.
  • the side member side plate portion stands along the front-rear direction.
  • the side member upper plate portion and the side member lower plate portion extend opposite to each other inward in the vehicle width direction from the upper end edge and the lower end edge of the side member side plate portion.
  • the cross member integrally includes a cross member vertical plate portion, a cross member upper plate portion, and a cross member lower plate portion, and extends in the vehicle width direction to connect the left and right side members.
  • the cross member vertical plate portion stands along the vehicle width direction.
  • the cross member upper plate portion and the cross member lower plate portion extend opposite to each other in the front-rear direction from the upper end edge and the lower end edge of the cross member vertical plate portion.
  • the reinforcement has integrally a reinforcing side plate portion, a reinforcing upper plate portion, a reinforcing lower plate portion, an upper extension plate portion, and a lower extension plate portion.
  • the reinforcing side plate portion overlaps the side member side plate portion from the inner side in the vehicle width direction.
  • the reinforcing upper plate portion extends inward in the vehicle width direction from the upper end edge of the reinforcing side plate portion, and overlaps the side member upper plate portion from below.
  • the reinforcing lower plate portion extends from the lower end edge of the reinforcing side plate portion to the reinforcing upper plate portion inward in the vehicle width direction, and overlaps the side member lower plate portion from above.
  • the upper extension plate portion continuously extends inward in the vehicle width direction from a part of the reinforcing upper plate portion.
  • the lower extension plate portion extends continuously inward in the vehicle width direction from a part of the reinforcing lower plate portion and faces the upper extension plate portion.
  • the cross member upper plate portion overlaps the reinforcing upper plate portion and the upper extension plate portion from below, and the cross member lower plate portion overlaps the reinforcement lower plate portion and the lower extension plate portion from above.
  • the side member upper plate portion, the reinforcing upper plate portion, and the cross member upper plate portion are coupled to each other by upper and lower coupling members penetrating them.
  • the side member lower plate portion, the reinforcing lower plate portion, and the cross member lower plate portion are coupled to each other by a lower outer coupling member that passes therethrough.
  • the upper extension plate portion and the cross member upper plate portion are coupled to each other by an upper inner coupling member penetrating them.
  • the lower extension plate portion and the cross member lower plate portion are coupled to each other by a lower inner coupling member penetrating them.
  • the side member upper plate portion, the reinforcing upper plate portion, and the cross member upper plate portion overlap in the vertical direction, and are fastened together by the upper and outer coupling members that pass through them.
  • the side member lower plate portion, the reinforcing lower plate portion, and the cross member lower plate portion overlap each other in the vertical direction, and are joined together by a lower outer connecting member that passes through the upper member and the cross member.
  • the upper plate part overlaps with the upper and lower parts, and is joined by the upper inner coupling member that passes through them.
  • the lower extension plate part and the cross member lower plate part overlap with each other vertically, and the lower inner joint member passes through them.
  • the side member side plate portion, the side member upper plate portion, and the side member lower plate portion are overlapped with the reinforcing side plate portion, the reinforcing upper plate portion, and the reinforcing lower plate portion, respectively.
  • the plate thickness of the side member upper plate portion and the side member lower plate portion is substantially increased. For this reason, the rigidity of the side member in a connection part and its vicinity can be improved.
  • the desired rigidity can be ensured without providing another cross member that narrows the space for arranging the in-vehicle parts between the left and right side members.
  • desired rigidity can be ensured without narrowing the arrangement space of the in-vehicle parts between the left and right side members.
  • FIG. 1 is a perspective view illustrating a vehicle body frame structure according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view of the reinforcement shown in FIG.
  • FIG. 3 is a side view showing a state in which a radiator is disposed between the left and right side members of FIG. 1.
  • the arrow 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 in a state where it faces the front of the vehicle.
  • the vehicle of the present embodiment is a truck or the like having a body frame 1, and the body frame 1 includes a pair of left and right side members 2, a cross member 3, and a pair of left and right reinforcements 4 as shown in FIG. 1.
  • the body frame 1 includes a pair of left and right side members 2, a cross member 3, and a pair of left and right reinforcements 4 as shown in FIG. 1.
  • the left and right side members 2 are separated from each other on both sides in the vehicle width direction and extend in the front-rear direction.
  • Each side member 2 has a U-shaped cross section that opens inward in the vehicle width direction.
  • the side member 2 has a side member side plate portion 11 that stands substantially vertically and extends in the front-rear direction, and an upper edge and a lower end edge of the side member side plate portion 11.
  • a side member upper plate portion 12 and a side member lower plate portion 13 that are bent at substantially right angles and extend opposite to each other in the width direction are integrally provided.
  • the cross member 3 extends linearly in the vehicle width direction between the front end portions of the left and right side members 2, and the left and right end portions of the cross member 3 have left and right side forces 4 interposed therebetween. 2 coupled.
  • the front end portion of the left side member 2, the left end portion of the cross member 3, and the front portion of the left reinforcement 4 constitute a left connecting portion 5, and the front end portion of the right side member 2 and the right end portion of the cross member 3 are formed.
  • the front portion of the right reinforcement 4 constitute a right connecting portion 5.
  • the cross member 3 has a U-shaped cross section that opens rearward, and extends rearward from a cross member vertical plate portion 14 that stands substantially vertically and extends in the vehicle width direction, and an upper end edge and a lower end edge of the cross member vertical plate portion 14.
  • a cross member upper plate portion 15 and a cross member lower plate portion 16 which are bent and extended substantially at right angles and are opposed to each other are integrally provided.
  • Each of the left and right reinforcements 4 integrally includes a reinforcing side plate portion 17, a reinforcing upper plate portion 18, a reinforcing lower plate portion 19, an upper extension plate portion 20, and a lower extension plate portion 21 (see FIG. 2).
  • the reinforcing side plate portion 17 has a substantially rectangular flat plate shape, and includes a connecting portion 5 (front end portion of the side member 2) and an adjacent region (connecting portion adjacent region) 6 in the vicinity of the rear of the connecting portion 5. It is inserted between the member lower plate part 13 and overlaps the inner side surface in the vehicle width direction of the side member side plate part 11 from the inner side in the vehicle width direction.
  • the reinforcing upper plate portion 18 has a flat plate shape extending from substantially the entire upper end edge of the reinforcing side plate portion 17 so as to be bent at a substantially right angle inward in the vehicle width direction, and overlaps the lower surface of the side member upper plate portion 12 from below.
  • the reinforcing lower plate portion 19 has a flat plate shape extending from substantially the entire lower end edge of the reinforcing side plate portion 17 so as to face the reinforcing upper plate portion 18 and bend at a substantially right angle inward in the vehicle width direction. It overlaps with the upper surface from above.
  • the upper extension plate portion 20 has a flat plate shape extended from the reinforcing upper plate portion 18 in the same plane, and the front end portion of the side member upper plate portion 12 (the side member upper plate portion 12 of the connecting portion 5) in the vehicle width direction. It extends continuously inward in the vehicle width direction from the front portion of the reinforcing upper plate 18 so as to protrude inward in the vehicle width direction from the inner edge.
  • the lower extension plate portion 21 is a flat plate extended from the reinforcing lower plate portion 19 in the same plane, and the front end portion of the side member lower plate portion 13 (the side member lower plate portion 13 of the connecting portion 5) in the vehicle width direction. It extends continuously inward in the vehicle width direction from the front portion of the reinforcing lower plate portion 19 so as to protrude inward in the vehicle width direction from the inner edge, and faces the upper extension plate portion 20.
  • the length in the front-rear direction of the upper extension plate portion 20 and the lower extension plate portion 21 is set to be less than 1 ⁇ 2 of the length in the front-rear direction of the reinforcement upper plate portion 18 and the reinforcement lower plate portion 19. Yes.
  • each length of the reinforcing upper plate 18 in the front-rear direction between a region where the upper extension plate 20 protrudes (region included in the connecting portion 5) and a region where the upper extended plate portion 20 does not protrude (region included in the connecting portion adjacent region 6). is longer than the region in which the upper extension plate 20 does not protrude.
  • the end of the cross member 3 is inserted between the reinforcing upper plate portion 18 and the reinforcing lower plate portion 19, and the upper surface of the cross member upper plate portion 15 is on the reinforcing side.
  • the lower surface of the plate portion 18 and the lower surface of the upper extension plate portion 20 overlap from below, and the lower surface of the cross member lower plate portion 16 overlaps the upper surface of the reinforcing lower plate portion 19 and the upper surface of the lower extension plate portion 21 from above.
  • the side member upper plate portion 12, the reinforcing upper plate portion 18, and the cross member upper plate portion 15 are coupled to each other by rivets (upper and outer coupling members) 22 that penetrate these three plate portions 12, 18, and 15.
  • the side member lower plate portion 13, the reinforcing lower plate portion 19, and the cross member lower plate portion 16 are coupled by a rivet (lower outer coupling member) 23 that passes through the three plate portions 13, 19, 16.
  • the upper extension plate portion 20 and the cross member upper plate portion 15 are coupled by a rivet (upper inner coupling member) 24 that passes through the two plate portions 20 and 15.
  • the lower extension plate portion 21 and the cross member lower plate portion 16 are coupled to each other by a rivet (lower inner coupling member) 25 that passes through the two plate portions 21 and 16.
  • the side member upper plate portion 12 and the reinforcing upper plate portion 18 are coupled by a rivet 26 that passes through the two plate portions 12, 18, and the side member lower plate portion 13 and the reinforcing lower plate are connected.
  • the part 19 is coupled by a rivet 27 that penetrates the two plate parts 13 and 19.
  • the side member side plate portion 11 and the reinforcing side plate portion 17 are coupled by a rivet 28 that penetrates the two plate portions 11 and 17.
  • a plurality of holes 29 through which the rivets 22 to 28 are inserted are formed in the plate portions 11 to 13 and 15 to 21, respectively. Of these holes 29, the holes 29 of the reinforcement 4 are shown in FIG. 2, and the other holes 29 are not shown.
  • the side member upper plate portion 12, the reinforcing upper plate portion 18, and the cross member upper plate portion 15 are vertically overlapped and penetrate through them.
  • the side member lower plate part 13, the reinforcing lower plate part 19, and the cross member lower plate part 16 are overlapped with each other by the upper and outer rivets 22, and are tightened together by the lower outer connecting member passing therethrough.
  • the upper extension plate portion 20 and the cross member upper plate portion 15 are vertically overlapped with each other, and are connected by an upper inner connecting member passing therethrough, and further, the lower extension plate portion 21 and the cross member lower plate portion 16 are combined. And are joined by a lower inner coupling member penetrating them. For this reason, the connection part 5 of the side member 2 and the cross member 3 is firmly reinforced by the reinforcement 4, and the rigidity of the connection part 5 can be improved.
  • the side member side plate portion 11, the side member upper plate portion 12, and the side member lower plate portion 13 are added to the reinforcing side plate portion 17, the reinforcing upper plate portion 18, and the reinforcing lower plate portion 19. Therefore, the plate thicknesses of the side member side plate portion 11, the side member upper plate portion 12 and the side member lower plate portion 13 are substantially increased. For this reason, the rigidity of the side member 2 in the connection part 5 and the connection part adjacent area
  • the desired rigidity can be ensured without providing another cross member (for example, a second cross member) that narrows the arrangement space of the in-vehicle components between the left and right side members 2 in the connecting portion adjacent region 6.
  • a second cross member for example, a large in-vehicle component (the radiator 30 in the example of FIG. 3) can be disposed between the left and right side members 2 of the connecting portion adjacent region 6.
  • cross member 3 may be connected to the middle portion or the rear end portion instead of the front end portions of the left and right side members 2.
  • the shape of the cross member 3 is not limited to a U-shaped cross section that opens to the rear, but may be another shape such as a U-shaped cross section that opens to the front or an I-shaped cross section.
  • the number of connecting portions (the number of rivets 22 to 28) and the arrangement of the plate portions 11 to 13 and 15 to 21 are arbitrary and may be set according to the required bonding strength.
  • the vehicle body frame structure according to the present disclosure has an effect that desired rigidity can be ensured without narrowing an arrangement space of in-vehicle components between the left and right side members, and the vehicle can be used while effectively utilizing the space in the vehicle. This is useful in that it can improve the safety.

Abstract

A cross member upper plate part 15 overlaps a reinforcing upper plate part 18 and an upward extending plate 20 of a reinforcer 4 from below, and a cross member lower plate part 16 overlaps a reinforcing lower plate part 19 and a downward extending plate part 21 of the reinforcer 4 from above. A side member upper plate part 12, the reinforcing upper plate part 18, and the cross member upper plate part 15 are joined using a joining member 22 on the upper outer side, and the upward extending plate part 20 and the cross member upper plate part 15 are joined using a joining member 24 on the upper inner side. A side member lower plate part 13, the reinforcing lower plate part 19, and the cross member lower plate part 16 are joined using a joining member 23 on the lower outer side, and the downward extending plate part 21 and the cross member lower plate part 16 are joined using a joining member 25 on the lower inner side.

Description

車体フレーム構造Body frame structure
　本開示は、車体フレーム構造に関する。 This disclosure relates to a body frame structure.
　特許文献１には、左右のサイドメンバの前端にファーストクロスメンバを架設し、ファーストクロスメンバの後方で左右のサイドメンバにセカンドクロスメンバを架設した車体フレームが記載されている。 Patent Document 1 describes a vehicle body frame in which a first cross member is installed at the front ends of left and right side members and a second cross member is installed on the left and right side members behind the first cross member.
日本国特開２０００－１７７６２８号公報Japanese Unexamined Patent Publication No. 2000-177628
　特許文献１のセカンドクロスメンバは、車体フレームの剛性の増大に寄与する一方、左右のサイドメンバ間の車載部品の配置スペースを狭めてしまう。 The second cross member of Patent Document 1 contributes to an increase in the rigidity of the vehicle body frame, but on the other hand, it reduces the arrangement space for in-vehicle parts between the left and right side members.
　そこで、本開示は、左右のサイドメンバ間の車載部品の配置スペースを狭めることなく、所望の剛性を確保することが可能な車体フレーム構造の提供を目的とする。 Therefore, an object of the present disclosure is to provide a vehicle body frame structure capable of ensuring a desired rigidity without narrowing the arrangement space of the in-vehicle parts between the left and right side members.
　上記目的を達成すべく、本開示の車体フレーム構造は、左右１対のサイドメンバとクロスメンバと左右１対のレインフォースとを備える。 In order to achieve the above object, the vehicle body frame structure of the present disclosure includes a pair of left and right side members, a cross member, and a pair of left and right reinforcements.
　サイドメンバは、サイドメンバ側板部とサイドメンバ上板部とサイドメンバ下板部とを一体的に有し、車幅方向の両側で前後方向に延びる。サイドメンバ側板部は、前後方向に沿って起立する。サイドメンバ上板部及びサイドメンバ下板部は、サイドメンバ側板部の上端縁及び下端縁から車幅方向内側に相対向して延びる。 The side member integrally includes a side member side plate portion, a side member upper plate portion, and a side member lower plate portion, and extends in the front-rear direction on both sides in the vehicle width direction. The side member side plate portion stands along the front-rear direction. The side member upper plate portion and the side member lower plate portion extend opposite to each other inward in the vehicle width direction from the upper end edge and the lower end edge of the side member side plate portion.
　クロスメンバは、クロスメンバ縦板部とクロスメンバ上板部とクロスメンバ下板部とを一体的に有し、車幅方向に延びて左右のサイドメンバを連結する。クロスメンバ縦板部は、車幅方向に沿って起立する。クロスメンバ上板部及びクロスメンバ下板部は、クロスメンバ縦板部の上端縁及び下端縁から前後方向の一方に向かって相対向して延びる。 The cross member integrally includes a cross member vertical plate portion, a cross member upper plate portion, and a cross member lower plate portion, and extends in the vehicle width direction to connect the left and right side members. The cross member vertical plate portion stands along the vehicle width direction. The cross member upper plate portion and the cross member lower plate portion extend opposite to each other in the front-rear direction from the upper end edge and the lower end edge of the cross member vertical plate portion.
　レインフォースは、補強側板部と補強上板部と補強下板部と上延長板部と下延長板部とを一体的に有する。補強側板部は、サイドメンバ側板部に車幅方向内側から重なる。補強上板部は、補強側板部の上端縁から車幅方向内側に延び、サイドメンバ上板部に下方から重なる。補強下板部は、補強側板部の下端縁から補強上板部に対向して車幅方向内側に延び、サイドメンバ下板部に上方から重なる。上延長板部は、補強上板部の一部から車幅方向内側に連続して延びる。下延長板部は、補強下板部の一部から車幅方向内側に連続して延びて上延長板部と対向する。 The reinforcement has integrally a reinforcing side plate portion, a reinforcing upper plate portion, a reinforcing lower plate portion, an upper extension plate portion, and a lower extension plate portion. The reinforcing side plate portion overlaps the side member side plate portion from the inner side in the vehicle width direction. The reinforcing upper plate portion extends inward in the vehicle width direction from the upper end edge of the reinforcing side plate portion, and overlaps the side member upper plate portion from below. The reinforcing lower plate portion extends from the lower end edge of the reinforcing side plate portion to the reinforcing upper plate portion inward in the vehicle width direction, and overlaps the side member lower plate portion from above. The upper extension plate portion continuously extends inward in the vehicle width direction from a part of the reinforcing upper plate portion. The lower extension plate portion extends continuously inward in the vehicle width direction from a part of the reinforcing lower plate portion and faces the upper extension plate portion.
　サイドメンバとクロスメンバとの連結部では、クロスメンバ上板部が補強上板部及び上延長板部に下方から重なり、クロスメンバ下板部が補強下板部及び下延長板部に上方から重なる。サイドメンバ上板部と補強上板部とクロスメンバ上板部とは、これらを貫通する上外側の結合部材によって結合される。サイドメンバ下板部と補強下板部とクロスメンバ下板部とは、これらを貫通する下外側の結合部材によって結合される。上延長板部とクロスメンバ上板部とは、これらを貫通する上内側の結合部材によって結合される。下延長板部とクロスメンバ下板部とは、これらを貫通する下内側の結合部材によって結合される。 In the connecting portion between the side member and the cross member, the cross member upper plate portion overlaps the reinforcing upper plate portion and the upper extension plate portion from below, and the cross member lower plate portion overlaps the reinforcement lower plate portion and the lower extension plate portion from above. . The side member upper plate portion, the reinforcing upper plate portion, and the cross member upper plate portion are coupled to each other by upper and lower coupling members penetrating them. The side member lower plate portion, the reinforcing lower plate portion, and the cross member lower plate portion are coupled to each other by a lower outer coupling member that passes therethrough. The upper extension plate portion and the cross member upper plate portion are coupled to each other by an upper inner coupling member penetrating them. The lower extension plate portion and the cross member lower plate portion are coupled to each other by a lower inner coupling member penetrating them.
　上記構成では、サイドメンバとクロスメンバとの連結部において、サイドメンバ上板部と補強上板部とクロスメンバ上板部とが上下に重なり、これらを貫通する上外側の結合部材によって共締めされて結合され、サイドメンバ下板部と補強下板部とクロスメンバ下板部とが上下に重なり、これらを貫通する下外側の結合部材によって共締めされて結合され、上延長板部とクロスメンバ上板部とが上下に重なり、これらを貫通する上内側の結合部材によって結合され、さらに、下延長板部とクロスメンバ下板部とが上下に重なり、これらを貫通する下内側の結合部材によって結合される。このため、サイドメンバとクロスメンバとの連結部がレインフォースによって強固に補強され、連結部の剛性を高めることができる。 In the above configuration, in the connecting portion between the side member and the cross member, the side member upper plate portion, the reinforcing upper plate portion, and the cross member upper plate portion overlap in the vertical direction, and are fastened together by the upper and outer coupling members that pass through them. The side member lower plate portion, the reinforcing lower plate portion, and the cross member lower plate portion overlap each other in the vertical direction, and are joined together by a lower outer connecting member that passes through the upper member and the cross member. The upper plate part overlaps with the upper and lower parts, and is joined by the upper inner coupling member that passes through them. Further, the lower extension plate part and the cross member lower plate part overlap with each other vertically, and the lower inner joint member passes through them. Combined. For this reason, the connection part of a side member and a cross member is firmly reinforced by a reinforcement, and the rigidity of a connection part can be improved.
　また、連結部及びその近傍では、サイドメンバ側板部、サイドメンバ上板部及びサイドメンバ下板部に、補強側板部、補強上板部及び補強下板部がそれぞれ重なるので、サイドメンバ側板部、サイドメンバ上板部及びサイドメンバ下板部の板厚が実質的に増大する。このため、連結部及びその近傍におけるサイドメンバの剛性を高めることができる。 Further, in the connecting portion and the vicinity thereof, the side member side plate portion, the side member upper plate portion, and the side member lower plate portion are overlapped with the reinforcing side plate portion, the reinforcing upper plate portion, and the reinforcing lower plate portion, respectively. The plate thickness of the side member upper plate portion and the side member lower plate portion is substantially increased. For this reason, the rigidity of the side member in a connection part and its vicinity can be improved.
　従って、左右のサイドメンバ間の車載部品の配置スペースを狭めてしまう他のクロスメンバを設けることなく、所望の剛性を確保することができる。 Therefore, the desired rigidity can be ensured without providing another cross member that narrows the space for arranging the in-vehicle parts between the left and right side members.
　本開示によれば、左右のサイドメンバ間の車載部品の配置スペースを狭めることなく、所望の剛性を確保することができる。 According to the present disclosure, desired rigidity can be ensured without narrowing the arrangement space of the in-vehicle parts between the left and right side members.
図１は、本開示の一実施形態に係る車体フレーム構造を示す斜視図である。FIG. 1 is a perspective view illustrating a vehicle body frame structure according to an embodiment of the present disclosure. 図２は、図１のレインフォースの斜視図である。FIG. 2 is a perspective view of the reinforcement shown in FIG. 図３は、図１の左右のサイドメンバの間にラジエータを配置した状態を示す側面図である。FIG. 3 is a side view showing a state in which a radiator is disposed between the left and right side members of FIG. 1.
　以下、本開示の実施形態について図面を参照して詳細に説明する。図中の矢印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、左右方向は車両の前方を向いた状態での左右方向を意味する。 Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the figure, the arrow 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 in a state where it faces the front of the vehicle.
　本実施形態の車両は、車体フレーム１を有するトラック等であり、車体フレーム１は、図１に示すように、左右１対のサイドメンバ２と、クロスメンバ３と、左右１対のレインフォース４とを備える。 The vehicle of the present embodiment is a truck or the like having a body frame 1, and the body frame 1 includes a pair of left and right side members 2, a cross member 3, and a pair of left and right reinforcements 4 as shown in FIG. 1. With.
　左右のサイドメンバ２は、車幅方向の両側で互いに離間して前後方向に延びる。各サイドメンバ２は、車幅方向内側に開口するＵ状断面であり、略鉛直に起立して前後方向に延びるサイドメンバ側板部１１と、サイドメンバ側板部１１の上端縁及び下端縁からそれぞれ車幅方向内側に略直角に曲折して相対向して延びるサイドメンバ上板部１２及びサイドメンバ下板部１３とを一体的に有する。 The left and right side members 2 are separated from each other on both sides in the vehicle width direction and extend in the front-rear direction. Each side member 2 has a U-shaped cross section that opens inward in the vehicle width direction. The side member 2 has a side member side plate portion 11 that stands substantially vertically and extends in the front-rear direction, and an upper edge and a lower end edge of the side member side plate portion 11. A side member upper plate portion 12 and a side member lower plate portion 13 that are bent at substantially right angles and extend opposite to each other in the width direction are integrally provided.
　クロスメンバ３は、左右のサイドメンバ２の前端部の間で車幅方向に直線状に延び、クロスメンバ３の左右の端部は、左右のレインフォース４を介在させた状態で左右のサイドメンバ２に結合される。左のサイドメンバ２の前端部とクロスメンバ３の左端部と左のレインフォース４の前部とによって左の連結部５が構成され、右のサイドメンバ２の前端部とクロスメンバ３の右端部と右のレインフォース４の前部とによって右の連結部５が構成される。 The cross member 3 extends linearly in the vehicle width direction between the front end portions of the left and right side members 2, and the left and right end portions of the cross member 3 have left and right side forces 4 interposed therebetween. 2 coupled. The front end portion of the left side member 2, the left end portion of the cross member 3, and the front portion of the left reinforcement 4 constitute a left connecting portion 5, and the front end portion of the right side member 2 and the right end portion of the cross member 3 are formed. And the front portion of the right reinforcement 4 constitute a right connecting portion 5.
　クロスメンバ３は、後方に開口するＵ状断面であり、略鉛直に起立して車幅方向に延びるクロスメンバ縦板部１４と、クロスメンバ縦板部１４の上端縁及び下端縁からそれぞれ後方に略直角に曲折して延びて相対向するクロスメンバ上板部１５及びクロスメンバ下板部１６とを一体的に有する。 The cross member 3 has a U-shaped cross section that opens rearward, and extends rearward from a cross member vertical plate portion 14 that stands substantially vertically and extends in the vehicle width direction, and an upper end edge and a lower end edge of the cross member vertical plate portion 14. A cross member upper plate portion 15 and a cross member lower plate portion 16 which are bent and extended substantially at right angles and are opposed to each other are integrally provided.
　左右のレインフォース４の各々は、補強側板部１７と補強上板部１８と補強下板部１９と上延長板部２０と下延長板部２１とを一体的に有する（図２参照）。 Each of the left and right reinforcements 4 integrally includes a reinforcing side plate portion 17, a reinforcing upper plate portion 18, a reinforcing lower plate portion 19, an upper extension plate portion 20, and a lower extension plate portion 21 (see FIG. 2).
　補強側板部１７は略矩形平板形状であり、連結部５（サイドメンバ２の前端部）及び連結部５の後方近傍の隣接領域（連結部隣接領域）６で、サイドメンバ上板部１２とサイドメンバ下板部１３との間に挿入されて、サイドメンバ側板部１１の車幅方向内側面に車幅方向内側から重なる。 The reinforcing side plate portion 17 has a substantially rectangular flat plate shape, and includes a connecting portion 5 (front end portion of the side member 2) and an adjacent region (connecting portion adjacent region) 6 in the vicinity of the rear of the connecting portion 5. It is inserted between the member lower plate part 13 and overlaps the inner side surface in the vehicle width direction of the side member side plate part 11 from the inner side in the vehicle width direction.
　補強上板部１８は、補強側板部１７の上端縁の略全域から車幅方向内側に略直角に曲折して延びる平板状であり、サイドメンバ上板部１２の下面に下方から重なる。 The reinforcing upper plate portion 18 has a flat plate shape extending from substantially the entire upper end edge of the reinforcing side plate portion 17 so as to be bent at a substantially right angle inward in the vehicle width direction, and overlaps the lower surface of the side member upper plate portion 12 from below.
　補強下板部１９は、補強側板部１７の下端縁の略全域から補強上板部１８に対向して車幅方向内側に略直角に曲折して延びる平板状であり、サイドメンバ下板部１３の上面に上方から重なる。 The reinforcing lower plate portion 19 has a flat plate shape extending from substantially the entire lower end edge of the reinforcing side plate portion 17 so as to face the reinforcing upper plate portion 18 and bend at a substantially right angle inward in the vehicle width direction. It overlaps with the upper surface from above.
　上延長板部２０は、補強上板部１８から同一面状に延長された平板状であり、サイドメンバ上板部１２の前端部（連結部５のサイドメンバ上板部１２）の車幅方向内端縁よりも車幅方向内側へ突出するように、補強上板部１８の前部から車幅方向内側に連続して延びる。 The upper extension plate portion 20 has a flat plate shape extended from the reinforcing upper plate portion 18 in the same plane, and the front end portion of the side member upper plate portion 12 (the side member upper plate portion 12 of the connecting portion 5) in the vehicle width direction. It extends continuously inward in the vehicle width direction from the front portion of the reinforcing upper plate 18 so as to protrude inward in the vehicle width direction from the inner edge.
　下延長板部２１は、補強下板部１９から同一面状に延長された平板状であり、サイドメンバ下板部１３の前端部（連結部５のサイドメンバ下板部１３）の車幅方向内端縁よりも車幅方向内側へ突出するように、補強下板部１９の前部から車幅方向内側に連続して延びて上延長板部２０と対向する。 The lower extension plate portion 21 is a flat plate extended from the reinforcing lower plate portion 19 in the same plane, and the front end portion of the side member lower plate portion 13 (the side member lower plate portion 13 of the connecting portion 5) in the vehicle width direction. It extends continuously inward in the vehicle width direction from the front portion of the reinforcing lower plate portion 19 so as to protrude inward in the vehicle width direction from the inner edge, and faces the upper extension plate portion 20.
　本実施形態では、上延長板部２０及び下延長板部２１の前後方向の長さを、補強上板部１８及び補強下板部１９の前後方向の長さの１／２未満に設定している。 In the present embodiment, the length in the front-rear direction of the upper extension plate portion 20 and the lower extension plate portion 21 is set to be less than ½ of the length in the front-rear direction of the reinforcement upper plate portion 18 and the reinforcement lower plate portion 19. Yes.
　すなわち、補強上板部１８のうち上延長板部２０が突出する領域（連結部５に含まれる領域）と突出しない領域（連結部隣接領域６に含まれる領域）との前後方向の各長さは、上延長板部２０が突出しない領域の方が突出する領域よりも長い。同様に、補強下板部１９のうち下延長板部２１が突出する領域（連結部５に含まれる領域）と突出しない領域（連結部隣接領域６に含まれる領域）との前後方向の各長さは、上延長板部２０が突出しない領域の方が突出する領域よりも長い。 That is, each length of the reinforcing upper plate 18 in the front-rear direction between a region where the upper extension plate 20 protrudes (region included in the connecting portion 5) and a region where the upper extended plate portion 20 does not protrude (region included in the connecting portion adjacent region 6). Is longer than the region in which the upper extension plate 20 does not protrude. Similarly, each length of the reinforcing lower plate portion 19 in the front-rear direction of a region where the lower extension plate portion 21 protrudes (region included in the connecting portion 5) and a region where it does not protrude (region included in the connecting portion adjacent region 6). The region where the upper extension plate portion 20 does not protrude is longer than the region where it protrudes.
　サイドメンバ２とクロスメンバ３との連結部５では、クロスメンバ３の端部が補強上板部１８と補強下板部１９との間に挿入され、クロスメンバ上板部１５の上面が補強上板部１８の下面及び上延長板部２０の下面に下方から重なり、クロスメンバ下板部１６の下面が補強下板部１９の上面及び下延長板部２１の上面に上方から重なる。 In the connecting portion 5 between the side member 2 and the cross member 3, the end of the cross member 3 is inserted between the reinforcing upper plate portion 18 and the reinforcing lower plate portion 19, and the upper surface of the cross member upper plate portion 15 is on the reinforcing side. The lower surface of the plate portion 18 and the lower surface of the upper extension plate portion 20 overlap from below, and the lower surface of the cross member lower plate portion 16 overlaps the upper surface of the reinforcing lower plate portion 19 and the upper surface of the lower extension plate portion 21 from above.
　サイドメンバ上板部１２と補強上板部１８とクロスメンバ上板部１５とは、これら３枚の板部１２，１８，１５を貫通するリベット（上外側の結合部材）２２によって結合される。サイドメンバ下板部１３と補強下板部１９とクロスメンバ下板部１６とは、これら３枚の板部１３，１９，１６を貫通するリベット（下外側の結合部材）２３によって結合される。 The side member upper plate portion 12, the reinforcing upper plate portion 18, and the cross member upper plate portion 15 are coupled to each other by rivets (upper and outer coupling members) 22 that penetrate these three plate portions 12, 18, and 15. The side member lower plate portion 13, the reinforcing lower plate portion 19, and the cross member lower plate portion 16 are coupled by a rivet (lower outer coupling member) 23 that passes through the three plate portions 13, 19, 16.
　上延長板部２０とクロスメンバ上板部１５とは、これら２枚の板部２０，１５を貫通するリベット（上内側の結合部材）２４によって結合される。下延長板部２１とクロスメンバ下板部１６とは、これら２枚の板部２１，１６を貫通するリベット（下内側の結合部材）２５によって結合される。 The upper extension plate portion 20 and the cross member upper plate portion 15 are coupled by a rivet (upper inner coupling member) 24 that passes through the two plate portions 20 and 15. The lower extension plate portion 21 and the cross member lower plate portion 16 are coupled to each other by a rivet (lower inner coupling member) 25 that passes through the two plate portions 21 and 16.
　連結部隣接領域６では、サイドメンバ上板部１２と補強上板部１８とが、これら２枚の板部１２，１８を貫通するリベット２６によって結合され、サイドメンバ下板部１３と補強下板部１９とが、これら２枚の板部１３，１９を貫通するリベット２７によって結合される。 In the connecting portion adjacent region 6, the side member upper plate portion 12 and the reinforcing upper plate portion 18 are coupled by a rivet 26 that passes through the two plate portions 12, 18, and the side member lower plate portion 13 and the reinforcing lower plate are connected. The part 19 is coupled by a rivet 27 that penetrates the two plate parts 13 and 19.
　また、連結部５及び連結部隣接領域６では、サイドメンバ側板部１１と補強側板部１７とが、これら２枚の板部１１，１７を貫通するリベット２８によって結合される。 Further, in the connecting portion 5 and the connecting portion adjacent region 6, the side member side plate portion 11 and the reinforcing side plate portion 17 are coupled by a rivet 28 that penetrates the two plate portions 11 and 17.
　各板部１１～１３，１５～２１には、リベット２２～２８が挿通する複数の孔２９がそれぞれ形成される。なお、これらの孔２９のうちレインフォース４の孔２９を図２に図示し、他の孔２９についてはその図示を省略している。 A plurality of holes 29 through which the rivets 22 to 28 are inserted are formed in the plate portions 11 to 13 and 15 to 21, respectively. Of these holes 29, the holes 29 of the reinforcement 4 are shown in FIG. 2, and the other holes 29 are not shown.
　本実施形態によれば、サイドメンバ２とクロスメンバ３との連結部５において、サイドメンバ上板部１２と補強上板部１８とクロスメンバ上板部１５とが上下に重なり、これらを貫通する上外側のリベット２２によって共締めされて結合され、サイドメンバ下板部１３と補強下板部１９とクロスメンバ下板部１６とが上下に重なり、これらを貫通する下外側の結合部材によって共締めされて結合され、上延長板部２０とクロスメンバ上板部１５とが上下に重なり、これらを貫通する上内側の結合部材によって結合され、さらに、下延長板部２１とクロスメンバ下板部１６とが上下に重なり、これらを貫通する下内側の結合部材によって結合される。このため、サイドメンバ２とクロスメンバ３との連結部５がレインフォース４によって強固に補強され、連結部５の剛性を高めることができる。 According to the present embodiment, in the connecting portion 5 between the side member 2 and the cross member 3, the side member upper plate portion 12, the reinforcing upper plate portion 18, and the cross member upper plate portion 15 are vertically overlapped and penetrate through them. The side member lower plate part 13, the reinforcing lower plate part 19, and the cross member lower plate part 16 are overlapped with each other by the upper and outer rivets 22, and are tightened together by the lower outer connecting member passing therethrough. The upper extension plate portion 20 and the cross member upper plate portion 15 are vertically overlapped with each other, and are connected by an upper inner connecting member passing therethrough, and further, the lower extension plate portion 21 and the cross member lower plate portion 16 are combined. And are joined by a lower inner coupling member penetrating them. For this reason, the connection part 5 of the side member 2 and the cross member 3 is firmly reinforced by the reinforcement 4, and the rigidity of the connection part 5 can be improved.
　また、連結部５及び連結部隣接領域６では、サイドメンバ側板部１１、サイドメンバ上板部１２及びサイドメンバ下板部１３に、補強側板部１７、補強上板部１８及び補強下板部１９がそれぞれ重なるので、サイドメンバ側板部１１、サイドメンバ上板部１２及びサイドメンバ下板部１３の板厚が実質的に増大する。このため、連結部５及び連結部隣接領域６におけるサイドメンバ２の剛性を高めることができる。 Further, in the connecting portion 5 and the connecting portion adjacent region 6, the side member side plate portion 11, the side member upper plate portion 12, and the side member lower plate portion 13 are added to the reinforcing side plate portion 17, the reinforcing upper plate portion 18, and the reinforcing lower plate portion 19. Therefore, the plate thicknesses of the side member side plate portion 11, the side member upper plate portion 12 and the side member lower plate portion 13 are substantially increased. For this reason, the rigidity of the side member 2 in the connection part 5 and the connection part adjacent area | region 6 can be improved.
　従って、連結部隣接領域６の左右のサイドメンバ２間の車載部品の配置スペースを狭めてしまう他のクロスメンバ（例えば、セカンドクロスメンバ）を設けることなく、所望の剛性を確保することができる。このため、例えば図３に示すように、連結部隣接領域６の左右のサイドメンバ２間に大型の車載部品（図３の例ではラジエータ３０）を配置することができる。 Therefore, the desired rigidity can be ensured without providing another cross member (for example, a second cross member) that narrows the arrangement space of the in-vehicle components between the left and right side members 2 in the connecting portion adjacent region 6. For this reason, for example, as shown in FIG. 3, a large in-vehicle component (the radiator 30 in the example of FIG. 3) can be disposed between the left and right side members 2 of the connecting portion adjacent region 6.
　以上、本発開示に係る実施形態について説明したが、この実施形態による本発明の開示の一部をなす論述及び図面により本発明は限定されることはない。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、実施例及び運用技術等は全て本発明の範疇に含まれることは勿論であることを付け加えておく。 As mentioned above, although the embodiment according to the present disclosure has been described, the present invention is not limited by the description and the drawings that constitute a part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.
　例えば、クロスメンバ３を左右のサイドメンバ２の前端部ではなく、中間部や後端部に連結してもよい。 For example, the cross member 3 may be connected to the middle portion or the rear end portion instead of the front end portions of the left and right side members 2.
　クロスメンバ３の形状は、後方に開口するＵ状断面に限定されず、前方に開口するＵ状断面やＩ状断面など他の形状であってもよい。 The shape of the cross member 3 is not limited to a U-shaped cross section that opens to the rear, but may be another shape such as a U-shaped cross section that opens to the front or an I-shaped cross section.
　リベット２２～２８に代えて又は加えて、例えばボルトとナット等の他の結合部材を用いてもよい。 Instead of or in addition to the rivets 22 to 28, other coupling members such as bolts and nuts may be used.
　また、各板部１１～１３，１５～２１の結合箇所の数（リベット２２～２８の数）及び配置は任意であり、要求される結合強度に応じて設定すればよい。 Further, the number of connecting portions (the number of rivets 22 to 28) and the arrangement of the plate portions 11 to 13 and 15 to 21 are arbitrary and may be set according to the required bonding strength.
　本出願は、2015年10月23日付で出願された日本国特許出願（特願2015-208814）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 (Japanese Patent Application No. 2015-208814) filed on October 23, 2015, the contents of which are incorporated herein by reference.
　本開示に係る車体フレーム構造は、左右のサイドメンバ間の車載部品の配置スペースを狭めることなく、所望の剛性を確保することができるという効果を奏し、車両内の空間を有効利用しつつ、車両の安全性を向上できるという点において有用である。 The vehicle body frame structure according to the present disclosure has an effect that desired rigidity can be ensured without narrowing an arrangement space of in-vehicle components between the left and right side members, and the vehicle can be used while effectively utilizing the space in the vehicle. This is useful in that it can improve the safety.
　１　車体フレーム
　２　サイドメンバ
　３　クロスメンバ
　４　レインフォース
　５　連結部
　６　連結部隣接領域
　１１　サイドメンバ側板部
　１２　サイドメンバ上板部
　１３　サイドメンバ下板部
　１４　クロスメンバ縦板部
　１５　クロスメンバ上板部
　１６　クロスメンバ下板部
　１７　補強側板部
　１８　補強上板部
　１９　補強下板部
　２０　上延長板部
　２１　下延長板部
　２２　リベット（上外側の結合部材）
　２３　リベット（下外側の結合部材）
　２４　リベット（上内側の結合部材）
　２５　リベット（下内側の結合部材）
　２６，２７，２８　リベット
　３０　ラジエータ（車載部品） DESCRIPTION OF SYMBOLS 1 Body frame 2 Side member 3 Cross member 4 Reinforce 5 Connection part 6 Connection part adjacent area | region 11 Side member side board part 12 Side member upper board part 13 Side member lower board part 14 Cross member vertical board part 15 Cross member upper board part 16 Cross member lower plate portion 17 Reinforcement side plate portion 18 Reinforcement upper plate portion 19 Reinforcement lower plate portion 20 Upper extension plate portion 21 Lower extension plate portion 22 Rivet (upper and outer coupling member)
23 Rivet (lower outer coupling member)
24 rivets (upper and inner connecting members)
25 Rivet (lower inner connecting member)
26, 27, 28 Rivet 30 Radiator (Automotive parts)

Claims (1)

  1. 　前後方向に沿って起立するサイドメンバ側板部と、このサイドメンバ側板部の上端縁及び下端縁から車幅方向内側に相対向して延びるサイドメンバ上板部及びサイドメンバ下板部とを一体的に有し、車幅方向の両側で前後方向に延びる左右１対のサイドメンバと、
    　車幅方向に沿って起立するクロスメンバ縦板部と、このクロスメンバ縦板部の上端縁及び下端縁から前後方向の一方に向かって相対向して延びるクロスメンバ上板部及びクロスメンバ下板部とを一体的に有し、車幅方向に延びて前記左右のサイドメンバを連結するクロスメンバと、
    　前記サイドメンバ側板部に車幅方向内側から重なる補強側板部と、この補強側板部の上端縁から車幅方向内側に延び、前記サイドメンバ上板部に下方から重なる補強上板部と、前記補強側板部の下端縁から前記補強上板部に対向して車幅方向内側に延び、前記サイドメンバ下板部に上方から重なる補強下板部と、前記補強上板部の一部から車幅方向内側に連続して延びる上延長板部と、前記補強下板部の一部から車幅方向内側に連続して延びて前記上延長板部と対向する下延長板部とを一体的に有するレインフォースと、を備え、
    　前記サイドメンバと前記クロスメンバとの連結部では、前記クロスメンバ上板部が前記補強上板部及び前記上延長板部に下方から重なり、前記クロスメンバ下板部が前記補強下板部及び前記下延長板部に上方から重なり、前記サイドメンバ上板部と前記補強上板部と前記クロスメンバ上板部とがこれらを貫通する上外側の結合部材によって結合され、前記サイドメンバ下板部と前記補強下板部と前記クロスメンバ下板部とがこれらを貫通する下外側の結合部材によって結合され、前記上延長板部と前記クロスメンバ上板部とがこれらを貫通する上内側の結合部材によって結合され、前記下延長板部と前記クロスメンバ下板部とがこれらを貫通する下内側の結合部材によって結合される
    　ことを特徴とする車体フレーム構造。     The side member side plate portion standing along the front-rear direction, and the side member upper plate portion and the side member lower plate portion extending opposite to each other inward in the vehicle width direction from the upper and lower edges of the side member side plate portion are integrated. A pair of left and right side members extending in the front-rear direction on both sides in the vehicle width direction,
    A cross member vertical plate portion standing along the vehicle width direction, and a cross member upper plate portion and a cross member lower plate extending opposite to each other in the front-rear direction from an upper end edge and a lower end edge of the cross member vertical plate portion A cross member that integrally has a portion and extends in the vehicle width direction to connect the left and right side members;
    Reinforcement side plate part that overlaps the side member side plate part from the vehicle width direction inner side, a reinforcement upper plate part that extends from the upper end edge of the reinforcement side plate part to the vehicle width direction inner side and overlaps the side member upper plate part from below, and the reinforcement A reinforcement lower plate portion that extends inward in the vehicle width direction from the lower end edge of the side plate portion so as to face the reinforcement upper plate portion and overlaps the side member lower plate portion from above, and a portion of the reinforcement upper plate portion from the vehicle width direction A rain that integrally includes an upper extension plate portion that extends continuously inward and a lower extension plate portion that extends continuously inward in the vehicle width direction from a part of the reinforcing lower plate portion and faces the upper extension plate portion. With force,
    In the connecting portion between the side member and the cross member, the cross member upper plate portion overlaps the reinforcing upper plate portion and the upper extension plate portion from below, and the cross member lower plate portion is the reinforcing lower plate portion and the reinforcing member. The side member upper plate portion, the reinforcing upper plate portion, and the cross member upper plate portion are coupled to each other by an upper and outer coupling member that penetrates the lower extension plate portion from above, and the side member lower plate portion The reinforcing lower plate portion and the cross member lower plate portion are coupled by a lower outer coupling member passing therethrough, and the upper extension plate portion and the cross member upper plate portion are coupled through the upper inner coupling member. The vehicle body frame structure is characterized in that the lower extension plate portion and the cross member lower plate portion are connected by a lower inner connecting member passing therethrough.
PCT/JP2016/079556 2015-10-23 2016-10-04 Body frame structure WO2017068973A1 (en)

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JP7108971B2 (en) * 2018-04-06 2022-07-29 いすゞ自動車株式会社 Gusset
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Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH02274671A (en) * 1989-04-17 1990-11-08 Mitsubishi Motors Corp Under carriage frame for vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02274671A (en) * 1989-04-17 1990-11-08 Mitsubishi Motors Corp Under carriage frame for vehicle

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