JPH10338160A - Cross member connecting part structure - Google Patents
Cross member connecting part structureInfo
- Publication number
- JPH10338160A JPH10338160A JP14778897A JP14778897A JPH10338160A JP H10338160 A JPH10338160 A JP H10338160A JP 14778897 A JP14778897 A JP 14778897A JP 14778897 A JP14778897 A JP 14778897A JP H10338160 A JPH10338160 A JP H10338160A
- Authority
- JP
- Japan
- Prior art keywords
- cross member
- width direction
- vehicle width
- cross
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はクロスメンバ結合部
構造に係り、特に自動車等の車両のはしご型フレームに
適用されるクロスメンバ結合部構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cross member connecting structure, and more particularly to a cross member connecting structure applied to a ladder type frame of a vehicle such as an automobile.
【０００２】[0002]
【従来の技術】従来、自動車等の車両のはしご型フレー
ムに適用されるクロスメンバ結合部構造では、クロスメ
ンバとサイドメンバとの結合部に補強部材を設けた構造
が知られており、その一例が実開平４−５１８７１号に
示されている。2. Description of the Related Art Conventionally, as a cross member connecting portion structure applied to a ladder type frame of a vehicle such as an automobile, a structure in which a reinforcing member is provided at a connecting portion between a cross member and a side member is known. Is shown in Japanese Utility Model Laid-Open No. 4-51871.
【０００３】図６に示される如く、このクロスメンバ結
合部構造では、サイドメンバ（サイドレールともいう）
１００の上部フランジ１００Ａの内側に接合する平面部
１０２Ａと、サイドメンバ１００のウェップ１００Ｂの
内側に接合する側面部１０２Ｂとで構成され断面Ｌ字状
の補強部材としてのアッパガセット１０２によって、サ
イドメンバ１００とクロスメンバ１０４との結合部が補
強されている。なお、このクロスメンバ結合部構造で
は、サイドメンバ１００のウェップ１００Ｂにボルトま
たはリベット止めされるアッパガセット１０２の側面部
１０２Ｂに、補強用の縦方向のビード１０６が複数本形
成されている。As shown in FIG. 6, in this cross member connecting portion structure, a side member (also referred to as a side rail) is provided.
The upper gusset 102 as a reinforcing member having an L-shaped cross section is composed of a flat portion 102A joined to the inside of the upper flange 100A of the base member 100 and a side surface portion 102B joined to the inside of the wep 100B of the side member 100. The joint between the member and the cross member 104 is reinforced. In this cross member connecting portion structure, a plurality of reinforcing longitudinal beads 106 are formed on the side surface portion 102B of the upper gusset 102 which is bolted or riveted to the wedge 100B of the side member 100.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このク
ロスメンバ結合部構造では、クロスメンバ１０４とアッ
パガセット１０２とが溶着されており、その最も車幅方
向内側にある溶接点Ｐ１の車幅方向内側の部位におい
て、剛性が高いアッパガセット１０２が無くなってい
る。このため、このはしご型フレームでは、アッパガセ
ット１０２の車幅方向内側端部が存在する溶接点Ｐ１の
車幅方向内側の部位において急激に剛性差が大きくなっ
ている。この結果、車両走行時のはしご型フレームの捩
じれ等によって、クロスメンバ１０４に上下及び前後曲
げ力、捩じり力が作用し、アッパガセット１０２にクロ
スメンバ１０４の軸線方向（図６の矢印Ｗ方向）の引張
り力、圧縮力が作用した場合には、これらの力の大部分
を、剛性差が大きい部位に隣接する溶接点Ｐ１で受け
る。このため、溶接点Ｐ１まわりに応力が集中し、この
応力集中が亀裂の発生原因となる。なお、通常、クロス
メンバ１０４の板厚に比べ、アッパガセット１０２の板
厚が厚いため、この溶接点Ｐ１まわりの応力集中は、ク
ロスメンバ１０４側の亀裂発生原因となる。However, in this cross member connecting portion structure, the cross member 104 and the upper gusset 102 are welded to each other, and the cross member 104 and the upper gusset 102 are welded inside the welding point P1, which is the innermost in the vehicle width direction. At the site, the upper gusset 102 having high rigidity is eliminated. For this reason, in this ladder-type frame, the rigidity difference sharply increases in the vehicle width direction inner part of the welding point P1 where the vehicle width direction inner end of the upper gusset 102 exists. As a result, the ladder-type frame is twisted during running of the vehicle, and vertical and longitudinal bending and torsional forces are applied to the cross member 104, and the upper gusset 102 is moved in the axial direction of the cross member 104 (in the direction of the arrow W in FIG. 6). When the tensile force and the compressive force are applied, most of these forces are received at the welding point P1 adjacent to the portion where the difference in rigidity is large. For this reason, stress concentrates around the welding point P1, and this stress concentration causes a crack to occur. Usually, since the thickness of the upper gusset 102 is larger than the thickness of the cross member 104, the stress concentration around the welding point P1 causes a crack on the cross member 104 side.
【０００５】本発明は、上記事実を考慮し、クロスメン
バに上下及び前後曲げ力及び捩じり力が作用した場合
に、補強部材とクロスメンバとの特定の結合点への応力
集中を緩和できるクロスメンバ結合部構造を提供するこ
とを目的とする。In view of the above facts, the present invention can alleviate the concentration of stress at a specific joining point between the reinforcing member and the cross member when a vertical and longitudinal bending force and a torsional force act on the cross member. It is an object of the present invention to provide a cross member connecting structure.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の本発明
は、車両の車幅方向両端下部に配設され車両前後方向に
延びる左右一対のサイドメンバと、該左右のサイドメン
バの間に架設され車幅方向に延びるクロスメンバと、前
記サイドメンバと前記クロスメンバとの結合部に配設さ
れ前記サイドメンバと前記クロスメンバとに結合された
補強部材と、を備えたクロスメンバ結合部構造におい
て、前記補強部材の前記クロスメンバとの結合点のうち
最も車幅方向内側の第１結合点と、該第１結合点の車幅
方向外側に隣接する第２結合点と、の間に前記クロスメ
ンバの軸線方向に延び易い変形部を備えたことを特徴と
している。According to a first aspect of the present invention, there is provided a pair of left and right side members disposed at lower portions of both ends in a vehicle width direction of a vehicle and extending in the vehicle front-rear direction. A cross member extending in the vehicle width direction, and a reinforcing member disposed at a connecting portion between the side member and the cross member and connected to the side member and the cross member. The cross-section between a first connection point on the innermost side in the vehicle width direction of the connection points of the reinforcing member with the cross member, and a second connection point adjacent to the first connection point on the outer side in the vehicle width direction. It is characterized by having a deformable portion that easily extends in the axial direction of the member.
【０００７】従って、クロスメンバに上下及び前後曲げ
力及び捩じり力が作用し、クロスメンバにその軸線方向
の引張力、圧縮力が作用した場合には、この引張力によ
り補強部材のクロスメンバとの結合点のうち最も車幅方
向内側の第１結合点と、第１結合点の車幅方向外側に隣
接する第２結合点との間に形成した変形部がクロスメン
バの軸線方向に延びる。この結果、この変形部の変形に
より補強部材の第１結合点と第２結合点との間における
クロスメンバの軸線方向に沿った剛性が低められ、応力
が第１結合点のみで無く、第２結合点へも分散されるた
め、第１結合点への応力集中を緩和できる。[0007] Therefore, when a vertical and longitudinal bending force and a torsional force act on the cross member and a tensile force or a compressive force acts on the cross member in the axial direction thereof, the tensile force causes the cross member of the reinforcing member to move. A deformed portion formed between the first connection point which is the innermost in the vehicle width direction of the connection points with the second connection point and which is adjacent to the first connection point on the outside in the vehicle width direction extends in the axial direction of the cross member. . As a result, due to the deformation of the deformed portion, the rigidity of the cross member between the first connection point and the second connection point of the reinforcing member along the axial direction of the cross member is reduced, and the stress is reduced not only at the first connection point but also at the second connection point. Since the stress is also distributed to the connection points, stress concentration on the first connection points can be reduced.
【０００８】請求項２記載の本発明は、請求項１記載の
クロスメンバ結合部構造において、前記変形部が前記ク
ロスメンバの軸線に直交する方向に沿って形成されたビ
ードであることを特徴としている。According to a second aspect of the present invention, in the cross member connecting portion structure according to the first aspect, the deformed portion is a bead formed along a direction orthogonal to an axis of the cross member. I have.
【０００９】従って、クロスメンバに上下及び前後曲げ
力及び捩じり力が作用し、クロスメンバにその軸線方向
の引張力、圧縮力が作用した場合には、この引張力によ
り補強部材のクロスメンバとの結合点のうち最も車幅方
向内側の第１結合点と、第１結合点の車幅方向外側に隣
接する第２結合点との間に形成したビードがクロスメン
バの軸線方向に延びる。この結果、このビードの変形に
より補強部材の第１結合点と第２結合点との間における
クロスメンバの軸線方向に沿った剛性が低められ、応力
が応力が第１結合点のみで無く、第２結合点へも分散さ
れるため、第１結合点への応力集中を緩和できる。Therefore, when a vertical and longitudinal bending force and a torsional force act on the cross member, and a tensile force and a compressive force act on the cross member in the axial direction, the tensile force causes the cross member of the reinforcing member to be acted upon. A bead formed between a first connection point on the innermost side in the vehicle width direction and a second connection point adjacent to the first connection point on the outside in the vehicle width direction extends in the axial direction of the cross member. As a result, due to the deformation of the bead, the rigidity of the cross member between the first joint point and the second joint point of the reinforcing member along the axial direction of the cross member is reduced, and the stress is reduced not only at the first joint point but also at the first joint point. Since the stress is also distributed to the two connection points, the stress concentration on the first connection point can be reduced.
【００１０】[0010]
【発明の実施の形態】本発明のクロスメンバ結合部構造
の一実施形態を図１〜図４に従って説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a cross member connecting portion structure of the present invention will be described with reference to FIGS.
【００１１】なお、各図において、車両前方を矢印ＦＲ
で、車両上方を矢印ＵＰで、車幅方向内方を矢印ＩＮで
それぞれ示す。In each of the drawings, an arrow FR is shown in front of the vehicle.
, The upper part of the vehicle is indicated by an arrow UP, and the inner side in the vehicle width direction is indicated by an arrow IN.
【００１２】図１に示される如く、本実施形態のクロス
メンバ結合部構造における車体フレームは、所謂、はし
ご型フレームとなっており、車両の車幅方向両端下部に
おいて、車両前後方向に延びる左右一対のサイドメンバ
１０（図１においては、車両右側のサイドメンバのみを
記載）に車幅方向に延びる複数本のクロスメンバ１２が
架設された構造となっている。As shown in FIG. 1, the body frame in the cross member connecting portion structure of the present embodiment is a so-called ladder frame, and a pair of left and right extending in the vehicle front-rear direction at both lower ends of the vehicle in the vehicle width direction. A plurality of cross members 12 extending in the vehicle width direction are provided on the side member 10 (only the right side member of the vehicle is shown in FIG. 1).
【００１３】図２に示される如く、サイドメンバ１０
は、サイドメンバ１０の車幅方向外側を構成するサイド
メンバアウタパネル１４と、サイドメンバ１０の車幅方
向内側を構成するサイドメンバインナパネル１６とを有
している。サイドメンバアウタパネル１４の車両前後方
向から見た断面形状は、開口部を車幅方向内側へ向けた
コ字状となっており、クロスメンバ１２との結合部にお
いては、下壁部１４Ａに車幅内側方向へ突出した連結部
１４Ｂが形成されている。[0013] As shown in FIG.
Has a side member outer panel 14 that forms the outside of the side member 10 in the vehicle width direction, and a side member inner panel 16 that forms the inside of the side member 10 in the vehicle width direction. The cross-sectional shape of the side member outer panel 14 as viewed from the vehicle front-rear direction is a U-shape with the opening directed inward in the vehicle width direction. In the joint portion with the cross member 12, the lower wall portion 14A has a vehicle width. A connecting portion 14B protruding inward is formed.
【００１４】図３に示される如く、サイドメンバインナ
パネル１６の車両前後方向から見た断面形状は、開口部
を車幅方向外側へ向けたコ字状となっており、上壁部１
６Ａが、サイドメンバアウタパネル１４の上壁部１４Ｃ
における車幅方向内側の下面に溶着されている。また、
サイドメンバインナパネル１６の下壁部１６Ｂが、サイ
ドメンバアウタパネル１４の下壁部１４Ａにおける車幅
方向内側の上面に溶着されている。この結果、サイドメ
ンバ１０には、サイドメンバインナパネル１６が配設さ
れたクロスメンバ１２との結合部において、車両前後方
向に延びる閉断面部１８が形成されている。As shown in FIG. 3, the cross-sectional shape of the side member inner panel 16 when viewed from the front-rear direction of the vehicle has a U-shape with an opening directed outward in the vehicle width direction.
6A is an upper wall portion 14C of the side member outer panel 14.
Is welded to the lower surface on the inner side in the vehicle width direction. Also,
The lower wall portion 16B of the side member inner panel 16 is welded to the upper surface on the inner side in the vehicle width direction of the lower wall portion 14A of the side member outer panel 14. As a result, the side member 10 is formed with a closed cross-section 18 extending in the vehicle front-rear direction at a connection portion with the cross member 12 on which the side member inner panel 16 is provided.
【００１５】図１に示される如く、クロスメンバ１２の
車幅方向から見た断面形状は、開口部を車両下方へ向け
たコ字状となっており、前壁部１２Ａの下端部には、車
両前方へ向けてフランジ１２Ｂが形成されている。ま
た、クロスメンバ１２の後壁部１２Ｃの下端部には、車
両後方へ向けてフランジ１２Ｄが形成されている。As shown in FIG. 1, the cross-sectional shape of the cross member 12 as viewed from the vehicle width direction is a U-shape with an opening directed downward from the vehicle, and a lower end of the front wall portion 12A has A flange 12B is formed toward the front of the vehicle. A flange 12D is formed at the lower end of the rear wall 12C of the cross member 12 toward the rear of the vehicle.
【００１６】図３に示される如く、クロスメンバ１２の
上壁部１２Ｅの車幅方向外側端部には、車幅方向外側へ
向けてフランジ１２Ｆが形成されており、このフランジ
１２Ｆが、サイドメンバアウタパネル１４の上壁部１４
Ｃの上面に溶着部１５において溶着されている。As shown in FIG. 3, a flange 12F is formed on the outer end in the vehicle width direction of the upper wall portion 12E of the cross member 12 so as to extend outward in the vehicle width direction. Upper wall 14 of outer panel 14
It is welded to the upper surface of C at a welding portion 15.
【００１７】図４に示される如く、クロスメンバ１２の
前壁部１２Ａの車幅方向外側端部には、車両前方へ向け
てフランジ１２Ｇが形成されており、このフランジ１２
Ｇが、サイドメンバインナパネル１６の縦壁部１６Ｃに
溶着部１７において溶着されている。また、クロスメン
バ１２の後壁部１２Ｃの車幅方向外側端部には、車両後
方へ向けてフランジ１２Ｈが形成されており、このフラ
ンジ１２Ｈはサイドメンバインナパネル１６の縦壁部１
６Ｃに溶着部１９において溶着されている。As shown in FIG. 4, a flange 12G is formed at the outer end of the front wall 12A of the cross member 12 in the vehicle width direction toward the front of the vehicle.
G is welded to the vertical wall portion 16C of the side member inner panel 16 at the welding portion 17. Further, a flange 12H is formed at the outer end in the vehicle width direction of the rear wall portion 12C of the cross member 12 toward the rear of the vehicle, and the flange 12H is formed on the vertical wall portion 1 of the side member inner panel 16.
6C is welded at a welding portion 19.
【００１８】図２に示される如く、サイドメンバ１０と
クロスメンバ１２との結合部の下側には、補強部材とし
てのガセット２０が配設されており、このガセット２０
には、車幅方向内側からＵ字状の切欠２２が形成されて
いる。この切欠２２の前後両側は、クロスメンバ１２と
の接合部２０Ａ、２０Ｂとなっており、これらの接合部
２０Ａ、２０Ｂは、車幅方向外側へ向けて、前後方向の
幅Ｌが徐々に広くなっている。また、ガセット２０の車
幅方向外側部２０Ｃは、前後方向に連続している。As shown in FIG. 2, a gusset 20 as a reinforcing member is provided below the joint between the side member 10 and the cross member 12. As shown in FIG.
Is formed with a U-shaped notch 22 from the inside in the vehicle width direction. The front and rear sides of the notch 22 form joints 20A and 20B with the cross member 12, and the joints 20A and 20B gradually increase in width L in the front-rear direction outward in the vehicle width direction. ing. The outer portion 20C of the gusset 20 in the vehicle width direction is continuous in the front-rear direction.
【００１９】図３に示される如く、ガセット２０の車幅
方向外側部２０Ｃは、サイドメンバアウタパネル１４の
連結部１４Ｂの上面に重合しており、溶着部２２におい
て溶着されている。As shown in FIG. 3, the outer side portion 20C of the gusset 20 in the vehicle width direction is overlapped on the upper surface of the connecting portion 14B of the side member outer panel 14, and is welded at the welding portion 22.
【００２０】図４に示される如く、ガセット２０の接合
部２０Ａ、２０Ｂは、クロスメンバ１２のフランジ１２
Ｂ、１２Ｄの下面に第１結合点としての溶接点Ｐ１、第
２結合点としての溶接点Ｐ２、その他の結合点としての
溶接点Ｐ３、Ｐ４、Ｐ５において、それぞれスポット溶
接によって互いに溶着されている。As shown in FIG. 4, the joints 20A and 20B of the gusset 20 are
B, 12D are welded to each other by spot welding at the welding point P1 as a first connecting point, the welding point P2 as a second connecting point, and the welding points P3, P4, and P5 as other connecting points on the lower surfaces. .
【００２１】図３に示される如く、各溶接点Ｐ１、Ｐ
２、Ｐ３、Ｐ４、Ｐ５は、車幅方向内側から車幅方向外
側へ向けて所定に間隔を開けて形成されており、最も車
幅方向外側の溶接点Ｐ５は、サイドメンバアウタパネル
１４の連結部１４Ｂの上部に重合している。また、最も
車幅方向内側端部、即ち、最もクロスメンバ１２側の端
部となる溶接点Ｐ１と、次の溶接点Ｐ２との間には、変
形部としてのビード２６が下方へ向けて突出した断面半
円状に形成されている。As shown in FIG. 3, each of the welding points P1, P
2, P3, P4, P5 are formed at predetermined intervals from the inside in the vehicle width direction to the outside in the vehicle width direction, and the welding point P5 on the outermost side in the vehicle width direction is connected to the connecting portion of the side member outer panel 14. Polymerized on top of 14B. Further, a bead 26 as a deformed portion projects downward between a welding point P1 which is the innermost end in the vehicle width direction, that is, the welding point P1 which is the end closest to the cross member 12 and the next welding point P2. It is formed in a semicircular cross section.
【００２２】図４に示される如く、これらのビード２６
は、クロスメンバ１２の軸線２８に直交する方向に沿っ
て形成されており、クロスメンバ１２の軸線２８の方向
（図４の矢印Ａ方向）に延び易くなっている。As shown in FIG. 4, these beads 26
Are formed along a direction perpendicular to the axis 28 of the cross member 12, and are easily extended in the direction of the axis 28 of the cross member 12 (the direction of arrow A in FIG. 4).
【００２３】次に、実施形態の作用を説明する。本施形
態のクロスメンバ結合部構造では、車両走行時のはしご
型フレームの捩じれ等によって、クロスメンバ１２に上
下及び前後曲げ力、捩じり力が作用し、ガセット２０に
クロスメンバ１２の軸線方向（図３及び図４の矢印Ａ方
向）の引張り力、圧縮力が作用すると、ガセット２０に
おける接合部２０Ａ、２０Ｂのクロスメンバ側端部に最
も近い第１溶接点Ｐ１と、次の第２溶接点Ｐ２との間に
形成したビード２６が、この引張り力によりクロスメン
バ１２の軸線方向（図３及び図４の矢印Ａ方向）へ延び
る。Next, the operation of the embodiment will be described. In the cross member connecting portion structure according to the present embodiment, the ladder-type frame is twisted during running of the vehicle, so that the vertical and longitudinal bending and torsional forces act on the cross member 12, and the gusset 20 extends in the axial direction of the cross member 12. When a tensile force or a compressive force (in the direction of arrow A in FIGS. 3 and 4) acts, the first welding point P1 closest to the cross member side end of the joints 20A and 20B in the gusset 20 and the next second welding The bead 26 formed between this point and the point P2 extends in the axial direction of the cross member 12 (the direction of the arrow A in FIGS. 3 and 4) due to the tensile force.
【００２４】この結果、本施形態のクロスメンバ結合部
構造では、このビード２６の変形により、ガセット２０
の第１溶接点Ｐ１と第２溶接点Ｐ２との間における矢印
Ａ方向に沿った剛性が低められ、応力が第１溶接点Ｐ１
のみでなく、第２溶接点Ｐ２へも分散される。即ち、第
１溶接点Ｐ１の左右（車幅方向内側と車幅方向外側）で
は、ガセット２０の有無によって、剛性差があるが、第
１溶接点Ｐ１の内側に設けたビード２６を故意に変形さ
せることによって、第１溶接点Ｐ１の左右における剛性
差を低減させることができ、従来構造では第１溶接点の
まわりに集中した応力を、本実施形態では、第２溶接点
のまわりにも分散することができる。よって、本実施形
態のクロスメンバ結合部構造では、第１溶接点Ｐ１への
応力集中を緩和でき、亀裂の発生を抑制できる。As a result, in the cross member connecting portion structure of this embodiment, the gusset 20
The rigidity along the arrow A direction between the first welding point P1 and the second welding point P2 is reduced, and the stress is reduced to the first welding point P1.
Not only is it dispersed to the second welding point P2. That is, there is a difference in rigidity between the right and left of the first welding point P1 (the inside and the outside in the vehicle width direction) depending on the presence or absence of the gusset 20, but the bead 26 provided inside the first welding point P1 is intentionally deformed. By doing so, the difference in rigidity between the left and right of the first welding point P1 can be reduced, and in the conventional structure, the stress concentrated around the first welding point is dispersed also around the second welding point in the present embodiment. can do. Therefore, in the cross member connecting portion structure of the present embodiment, stress concentration on the first welding point P1 can be reduced, and generation of cracks can be suppressed.
【００２５】なお、ガセット２０における接合部２０
Ａ、２０Ｂでは、ビード２６が無い場合に比べて、ビー
ド２６への応力が高くなるが、通常、ガセット２０の板
厚は、クロスメンバ１２の板厚に比べて厚いため、ガセ
ット２０のビード２６を設けた部位に亀裂等が発生する
可能性は極めて少ない。The joining portion 20 of the gusset 20
In A and 20B, the stress applied to the bead 26 is higher than when the bead 26 is not provided. However, since the plate thickness of the gusset 20 is generally larger than the plate thickness of the cross member 12, the bead 26 It is extremely unlikely that cracks or the like will occur in the portion where the crack is provided.
【００２６】また、本実施形態のクロスメンバ結合部構
造では、変形部としてのビード２６をガセット２０に形
成したため、構造が簡単で生産性が良い。Further, in the cross member connecting portion structure of the present embodiment, since the bead 26 as the deformed portion is formed on the gusset 20, the structure is simple and the productivity is good.
【００２７】以上に於いては、本発明を特定の実施形態
について詳細に説明したが、本発明はかかる実施形態に
限定されるものではなく、本発明の範囲内にて他の種々
の実施形態が可能であることは当業者にとって明らかで
ある。例えば、本実施形態では、変形部としての断面半
円形状のビード２６をガセット２０に形成したが、ビー
ド２６の断面形状は三角形状等の他の形状でも良い。ま
た、ビード２６の数を複数にしても良く、ビード２６に
代えて、波状に屈曲した屈曲部等の他の構成により変形
部を構成しても良い。In the above, the present invention has been described in detail with respect to a specific embodiment. However, the present invention is not limited to such an embodiment, and various other embodiments are included in the scope of the present invention. It is clear to a person skilled in the art that is possible. For example, in the present embodiment, the bead 26 having a semicircular cross section as a deformed portion is formed on the gusset 20, but the cross sectional shape of the bead 26 may be another shape such as a triangular shape. Further, the number of the beads 26 may be plural, and instead of the beads 26, the deformed portion may be configured by another configuration such as a wavy bent portion.
【００２８】また、本実施形態では、ガセット２０の接
合部２０Ａ、２０Ｂと、クロスメンバ１２のフランジ１
２Ｂ、１２Ｄとをスポット溶接によって互いに結合した
が、スポット溶接に代えて、ボルト止め、リベット止
め、アーク溶接等の他の構成により、ガセット２０の接
合部２０Ａ、２０Ｂと、クロスメンバ１２のフランジ１
２Ｂ、１２Ｄとを結合しても良い。In this embodiment, the joints 20A and 20B of the gusset 20 and the flange 1 of the cross member 12 are provided.
2B and 12D are joined to each other by spot welding. Instead of spot welding, the joining portions 20A and 20B of the gusset 20 and the flange 1 of the cross member 12 are formed by other configurations such as bolting, riveting, and arc welding.
2B and 12D may be combined.
【００２９】また、本実施形態では、ガセット２０をク
ロスメンバ１２の下部に設け、所謂アンダーガセットと
して使用したが、本発明はアッパガセットにも使用可能
である。例えば、図５に示される如く、クロスメンバ１
２の上部にもガセット２０を設けた構成としても良い。
なお、この場合には、ガセット２０の接合部２０Ａ、２
０Ｂは、クロスメンバ１２の上壁部１２Ｅの上面にスポ
ット溶接等によって結合されており、アッパガセット２
０の車幅方向外側部２０Ｃが、サイドメンバアウタパネ
ル１４の上壁部１４Ｃに、車幅内側方向へ突出形成され
た連結部１４Ｄに溶着されている。In the present embodiment, the gusset 20 is provided below the cross member 12 and used as a so-called under gusset. However, the present invention can be used for an upper gusset. For example, as shown in FIG.
The gusset 20 may be provided also on the upper part of the second member 2.
In this case, the joining portions 20A, 2A
The upper gusset 2B is connected to the upper surface of the upper wall portion 12E of the cross member 12 by spot welding or the like.
The outer portion 20C in the vehicle width direction of 0 is welded to the upper wall portion 14C of the side member outer panel 14 at a connection portion 14D protruding inward in the vehicle width direction.
【００３０】[0030]
【発明の効果】請求項１記載の本発明は、車両の車幅方
向両端下部に配設され車両前後方向に延びる左右一対の
サイドメンバと、左右のサイドメンバの間に架設され車
幅方向に延びるクロスメンバと、サイドメンバとクロス
メンバとの結合部に配設されサイドメンバとクロスメン
バとに結合された補強部材と、を備えたクロスメンバ結
合部構造において、補強部材のクロスメンバとの結合点
のうち最も車幅方向内側の第１結合点と、第１結合点の
車幅方向外側に隣接する第２結合点と、の間にクロスメ
ンバの軸線方向に延び易い変形部を備えたため、クロス
メンバに上下及び前後曲げ力及び捩じり力が作用した場
合に、補強部材とクロスメンバとの特定の結合点への応
力集中を緩和できるという優れた効果を有する。According to the first aspect of the present invention, there is provided a pair of left and right side members disposed at the lower portions of both ends in the vehicle width direction of a vehicle and extending in the vehicle front-rear direction. In a cross member connecting portion structure comprising a cross member extending and a reinforcing member provided at a connecting portion between the side member and the cross member and connected to the side member and the cross member, the connecting of the reinforcing member to the cross member A deformable portion that easily extends in the axial direction of the cross member is provided between the first connection point that is the innermost in the vehicle width direction among the points and the second connection point that is adjacent to the first connection point on the outside in the vehicle width direction. When a vertical and longitudinal bending force and a torsional force are applied to the cross member, there is an excellent effect that stress concentration at a specific joining point between the reinforcing member and the cross member can be reduced.
【００３１】請求項２記載の本発明は、請求項１記載の
クロスメンバ結合部構造において、変形部がクロスメン
バの軸線に直交する方向に沿って形成されたビードであ
るため請求項１記載の効果に加えて、構造が簡単である
という優れた効果を有する。According to a second aspect of the present invention, in the cross member connecting portion structure according to the first aspect, the deformed portion is a bead formed along a direction orthogonal to the axis of the cross member. In addition to the effect, it has an excellent effect that the structure is simple.
【図１】本発明の一実施形態に係るクロスメンバ結合部
構造の要部を示す車両後方斜め内側から見た斜視図であ
る。FIG. 1 is a perspective view showing a main part of a cross member connecting portion structure according to an embodiment of the present invention, as viewed from an obliquely rear inner side of a vehicle.
【図２】本発明の一実施形態に係るクロスメンバ結合部
構造の要部を示す車両後方斜め内側から見た分解斜視図
である。FIG. 2 is an exploded perspective view showing a main part of the cross member connecting portion structure according to the embodiment of the present invention, as viewed obliquely from the rear inside the vehicle.
【図３】図１の３−３線に沿った断面図である。FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;
【図４】本発明の一実施形態に係るクロスメンバ結合部
構造の要部を示す平面図である。FIG. 4 is a plan view showing a main part of a cross member connecting portion structure according to an embodiment of the present invention.
【図５】本発明の他の実施形態に係るクロスメンバ結合
部構造の要部を示す車両後方斜め内側から見た斜視図で
ある。FIG. 5 is a perspective view showing a main part of a cross member connecting portion structure according to another embodiment of the present invention, as viewed obliquely from the rear inside the vehicle.
【図６】従来の実施形態に係るクロスメンバ結合部構造
を示す斜視図である。FIG. 6 is a perspective view showing a cross member connecting portion structure according to a conventional embodiment.
１０ サイドメンバ １２ クロスメンバ １４ サイドメンバアウタパネル １６ サイドメンバインナパネル １８ 閉断面部 ２０ ガセット（補強部材） ２６ ビード（変形部） ２８ クロスメンバの軸線 Ｐ１ 溶接点（第１結合点） Ｐ２ 溶接点（第２結合点） DESCRIPTION OF SYMBOLS 10 Side member 12 Cross member 14 Side member outer panel 16 Side member inner panel 18 Closed section 20 Gusset (reinforcing member) 26 Bead (deformation part) 28 Cross member axis P1 Welding point (first joining point) P2 Welding point (No. (2 bonding points)
Claims (2)
前後方向に延びる左右一対のサイドメンバと、該左右の
サイドメンバの間に架設され車幅方向に延びるクロスメ
ンバと、前記サイドメンバと前記クロスメンバとの結合
部に配設され前記サイドメンバと前記クロスメンバとに
結合された補強部材と、を備えたクロスメンバ結合部構
造において、 前記補強部材の前記クロスメンバとの結合点のうち最も
車幅方向内側の第１結合点と、該第１結合点の車幅方向
外側に隣接する第２結合点と、の間に前記クロスメンバ
の軸線方向に延び易い変形部を備えたことを特徴とする
クロスメンバ結合部構造。1. A pair of left and right side members disposed at lower portions at both ends in a vehicle width direction of a vehicle and extending in the vehicle front-rear direction, a cross member spanned between the left and right side members and extending in the vehicle width direction, and the side members And a reinforcing member disposed at a connecting portion between the cross member and the cross member, the reinforcing member being connected to the side member and the cross member. A deformable portion that easily extends in the axial direction of the cross member is provided between a first connection point that is the innermost in the vehicle width direction and a second connection point that is adjacent to the outer side in the vehicle width direction of the first connection point. A cross member connecting portion structure.
直交する方向に沿って形成されたビードであることを特
徴とする請求項１記載のクロスメンバ結合部構造。2. The cross member connecting portion structure according to claim 1, wherein said deformed portion is a bead formed along a direction orthogonal to an axis of said cross member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14778897A JP3465532B2 (en) | 1997-06-05 | 1997-06-05 | Cross member connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14778897A JP3465532B2 (en) | 1997-06-05 | 1997-06-05 | Cross member connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10338160A true JPH10338160A (en) | 1998-12-22 |
| JP3465532B2 JP3465532B2 (en) | 2003-11-10 |
Family
ID=15438224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14778897A Expired - Fee Related JP3465532B2 (en) | 1997-06-05 | 1997-06-05 | Cross member connection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3465532B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1481877A1 (en) * | 2002-03-05 | 2004-12-01 | Isuzu Motors Limited | Connection structure of side member to cross member |
| CN100427347C (en) * | 2005-02-14 | 2008-10-22 | 三菱自动车工业株式会社 | Cross beam mounting structure |
| JP2009190532A (en) * | 2008-02-13 | 2009-08-27 | Kanto Auto Works Ltd | Partition panel |
| JP2013184687A (en) * | 2012-03-12 | 2013-09-19 | Toa Jidosha Kogyo Kk | Dump trailer |
| JP2017030385A (en) * | 2015-07-29 | 2017-02-09 | 日野自動車株式会社 | Connection bus |
| WO2018155571A1 (en) * | 2017-02-24 | 2018-08-30 | いすゞ自動車株式会社 | Vehicle body structure |
| CN110198884A (en) * | 2017-02-24 | 2019-09-03 | 五十铃自动车株式会社 | Vehicle body structure |
| KR20200047946A (en) * | 2018-10-26 | 2020-05-08 | 동해금속 주식회사 | Bus frame apparatus |
| WO2020196409A1 (en) * | 2019-03-26 | 2020-10-01 | いすゞ自動車株式会社 | Cross member and vehicle frame |
| JP2021046117A (en) * | 2019-09-19 | 2021-03-25 | 株式会社日立製作所 | Rail vehicle |
| JP2021154982A (en) * | 2020-03-30 | 2021-10-07 | いすゞ自動車株式会社 | Vehicle body frame structure |
-
1997
- 1997-06-05 JP JP14778897A patent/JP3465532B2/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1481877A1 (en) * | 2002-03-05 | 2004-12-01 | Isuzu Motors Limited | Connection structure of side member to cross member |
| EP1481877A4 (en) * | 2002-03-05 | 2005-11-16 | Isuzu Motors Ltd | Connection structure of side member to cross member |
| US7261322B2 (en) | 2002-03-05 | 2007-08-28 | Isuzu Motors Limited | Coupling structure of side member to cross member |
| CN100364835C (en) * | 2002-03-05 | 2008-01-30 | 五十铃自动车株式会社 | Connection structure of side member to cross member |
| CN100427347C (en) * | 2005-02-14 | 2008-10-22 | 三菱自动车工业株式会社 | Cross beam mounting structure |
| JP2009190532A (en) * | 2008-02-13 | 2009-08-27 | Kanto Auto Works Ltd | Partition panel |
| JP2013184687A (en) * | 2012-03-12 | 2013-09-19 | Toa Jidosha Kogyo Kk | Dump trailer |
| JP2017030385A (en) * | 2015-07-29 | 2017-02-09 | 日野自動車株式会社 | Connection bus |
| WO2018155571A1 (en) * | 2017-02-24 | 2018-08-30 | いすゞ自動車株式会社 | Vehicle body structure |
| JP2018138439A (en) * | 2017-02-24 | 2018-09-06 | いすゞ自動車株式会社 | Vehicle body structure |
| CN110198884A (en) * | 2017-02-24 | 2019-09-03 | 五十铃自动车株式会社 | Vehicle body structure |
| CN110267868A (en) * | 2017-02-24 | 2019-09-20 | 五十铃自动车株式会社 | Vehicle body structure |
| KR20200047946A (en) * | 2018-10-26 | 2020-05-08 | 동해금속 주식회사 | Bus frame apparatus |
| WO2020196409A1 (en) * | 2019-03-26 | 2020-10-01 | いすゞ自動車株式会社 | Cross member and vehicle frame |
| CN113631464A (en) * | 2019-03-26 | 2021-11-09 | 五十铃自动车株式会社 | Cross member and vehicle body frame |
| JP2021046117A (en) * | 2019-09-19 | 2021-03-25 | 株式会社日立製作所 | Rail vehicle |
| JP2021154982A (en) * | 2020-03-30 | 2021-10-07 | いすゞ自動車株式会社 | Vehicle body frame structure |
Also Published As
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| JP3465532B2 (en) | 2003-11-10 |
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