JPH07117717A - Load transfer structure of automotive structural member - Google Patents
Load transfer structure of automotive structural memberInfo
- Publication number
- JPH07117717A JPH07117717A JP28391293A JP28391293A JPH07117717A JP H07117717 A JPH07117717 A JP H07117717A JP 28391293 A JP28391293 A JP 28391293A JP 28391293 A JP28391293 A JP 28391293A JP H07117717 A JPH07117717 A JP H07117717A
- Authority
- JP
- Japan
- Prior art keywords
- structural member
- panel
- load
- auxiliary
- dash panel
- 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.)
- Pending
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車の構造部材の荷重
伝達構造に関し、たとえば、自動車のフロントサイドメ
ンバに加わる荷重を、ダッシュパネルと補助の構造部材
とを介してフロントピラーに伝達し、フロントピラーで
受け止めるべきとき適する荷重伝達構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load transmitting structure for a structural member of an automobile, for example, transmitting a load applied to a front side member of the automobile to a front pillar through a dash panel and an auxiliary structural member. The present invention relates to a load transmission structure suitable for being received by a pillar.
【０００２】[0002]
【従来の技術】自動車のフロントサイドメンバは、水平
に前後方向へ伸びる第１部分と、第１部分の後端部から
下方へ斜めに伸びる第２部分とからなる。第２部分は、
その後端に設けたフランジでダッシュパネルに接合さ
れ、さらに、ダッシュパネルの下方部分から水平に後方
へ伸びるロッカないしサイドシルに接合される。そのた
め、通常の運転時には加わらない大きな荷重が第１部分
に加わったとき、この荷重を第１部分の延長上で受け止
めるべく、補助の構造部材をダッシュパネルとフロント
ピラーとの間に配置することがある（特開平4-126678号
公報）。2. Description of the Related Art A front side member of an automobile comprises a first portion extending horizontally in the front-rear direction and a second portion extending obliquely downward from a rear end portion of the first portion. The second part is
It is joined to the dash panel by a flange provided at its rear end, and further joined to a rocker or a side sill that horizontally extends rearward from a lower portion of the dash panel. Therefore, when a large load that is not applied during normal operation is applied to the first portion, an auxiliary structural member may be arranged between the dash panel and the front pillar so as to receive the load on the extension of the first portion. (Japanese Patent Laid-Open No. 4-126678).
【０００３】前記公報に記載された構造では、補助の構
造部材のフランジをダッシュパネルに重ね合せ、フロン
トサイドメンバのフランジと補助の構造部材のフランジ
との間にダッシュパネルをはさみ、スポット溶接して補
助の構造部材を接合している。In the structure described in the above publication, the flange of the auxiliary structural member is superposed on the dash panel, the dash panel is sandwiched between the flange of the front side member and the flange of the auxiliary structural member, and spot welding is performed. Auxiliary structural members are joined.
【０００４】[0004]
【発明が解決しようとする課題】図３に示すように、パ
ネル１０をはさんで配置した一方の構造部材１１のフラ
ンジ１２と他方の構造部材１３のフランジ１４とをスポ
ット溶接すべきとき、２つの構造部材１１、１３に製作
上の誤差がなければ、同図ａのように、２つのフランジ
１２、１４はパネル１０に密接する。ところが、構造部
材１１、１３に製作上の誤差があると、同図ｂのよう
に、フランジ１２、１４を変形させて溶接するため、フ
ランジ１２、１４はパネル１０に密接しなくなる。その
結果、荷重が入力するとき、各フランジにはプラス側お
よびマイナス側の、すなわち両振りの荷重がかかること
となり、耐久強度が低下する。As shown in FIG. 3, when the flange 12 of one structural member 11 and the flange 14 of the other structural member 13 sandwiching the panel 10 are to be spot-welded, 2 If there is no manufacturing error in the two structural members 11 and 13, the two flanges 12 and 14 closely contact the panel 10 as shown in FIG. However, if there is a manufacturing error in the structural members 11 and 13, the flanges 12 and 14 are deformed and welded, as shown in FIG. As a result, when a load is input, a positive load and a negative load, that is, both swing loads are applied to each flange, and durability strength decreases.
【０００５】本発明の目的は、製作誤差の影響を受けに
くい自動車の構造部材の荷重伝達構造を提供することに
ある。An object of the present invention is to provide a load transmission structure for a structural member of an automobile that is not easily affected by manufacturing errors.
【０００６】[0006]
【課題を解決するための手段】本発明は、第１の構造部
材に加わる荷重を、この第１の構造部材の端面に接合し
たパネルと一方の端部が第２の構造部材に接合された補
助の構造部材とを介して前記第２の構造部材に伝える荷
重伝達構造であって、前記補助の構造部材の他方の端部
と前記パネルとの間にすきまを設けている。According to the present invention, a panel in which a load applied to a first structural member is joined to an end face of the first structural member and one end portion is joined to a second structural member. It is a load transmission structure which transmits to the said 2nd structural member via an auxiliary | assistant structural member, A clearance is provided between the other end part of the said auxiliary | assistant structural member, and the said panel.
【０００７】[0007]
【作用および効果】通常の走行時、第１の構造部材から
補助の構造部材へ荷重は伝達しない。通常の走行時より
大きな荷重が第１の構造部材に加わると、第１の構造部
材が変位し、この変位によってパネルが補助の構造部材
に接触する。その結果、第１の構造部材に加わる荷重
は、パネルおよび補助の構造部材を介して第２の構造部
材に伝わり、ここで受け止められる。[Operation and effect] During normal traveling, the load is not transmitted from the first structural member to the auxiliary structural member. When a load larger than that during normal traveling is applied to the first structural member, the first structural member is displaced, and this displacement causes the panel to contact the auxiliary structural member. As a result, the load applied to the first structural member is transmitted to the second structural member via the panel and the auxiliary structural member, and is received there.
【０００８】補助の構造部材とパネルとの間にすきまを
設けているため、構造部材に製作上の誤差が生じても、
少なくともパネルと補助の構造部材との関係では、耐久
強度の低下は起こらない。Since a gap is provided between the auxiliary structural member and the panel, even if a structural error occurs in the structural member,
At least in the relationship between the panel and the auxiliary structural member, the durability strength does not decrease.
【０００９】補助の構造部材とパネルとの間にすきまが
あっても、補助の構造部材は通常の走行時に加わる荷重
とは関係がないため、通常の走行には全く影響がない。Even if there is a gap between the auxiliary structural member and the panel, since the auxiliary structural member has no relation to the load applied during normal traveling, it does not affect normal traveling at all.
【００１０】第１の構造部材に振動が加わる場合、補助
の構造部材がパネルを介して第１の構造部材と結合され
ていると、前記振動が補助の構造部材から第２の構造部
材に伝わるが、本発明では、補助の構造部材はパネルと
の間にすきまをおくため、第１の構造部材から振動が伝
わることはない。When vibration is applied to the first structural member, the vibration is transmitted from the auxiliary structural member to the second structural member when the auxiliary structural member is coupled to the first structural member through the panel. However, in the present invention, since the auxiliary structural member has a gap with the panel, vibration is not transmitted from the first structural member.
【００１１】[0011]
【実施例】荷重伝達構造は、図１および図２に示すよう
に、第１の構造部材２０に加わる荷重を、この第１の構
造部材２０の端面に接合したパネル２２と、補助の構造
部材２４とを介して第２の構造部材２６に伝える。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a load transmitting structure includes a panel 22 in which a load applied to a first structural member 20 is joined to an end face of the first structural member 20, and an auxiliary structural member. 24 to the second structural member 26.
【００１２】図示の実施例では、第１の構造部材２０は
フロントサイドメンバであり、パネル２２はダッシュパ
ネルであり、そして第２の構造部材２６はフロントピラ
ーである。In the illustrated embodiment, the first structural member 20 is a front side member, the panel 22 is a dash panel, and the second structural member 26 is a front pillar.
【００１３】フロントサイドメンバ２０は、前後方向へ
実質的に水平に伸びる第１部分２８と、第１部分２８の
後端部から斜めに下方へ伸びる第２部分２９とからな
る。第２部分２９の後端の車体の幅方向の両側に設けた
フランジ３０とダッシュパネル２２とを重ね合せてスポ
ット溶接し、フロントサイドメンバ２０とダッシュパネ
ル２２とが接合されている。フロントサイドメンバ２０
は、いわゆるハット形断面形状のインナパネル３１と平
坦なアウタパネル３２とを接合した閉断面構造を呈す
る。The front side member 20 comprises a first portion 28 extending substantially horizontally in the front-rear direction, and a second portion 29 extending obliquely downward from the rear end of the first portion 28. The front side member 20 and the dash panel 22 are joined to each other by spot welding the flange 30 and the dash panel 22 provided on both sides in the width direction of the vehicle body at the rear end of the second portion 29. Front side member 20
Has a closed cross-section structure in which an inner panel 31 having a so-called hat-shaped cross-section and a flat outer panel 32 are joined.
【００１４】図示の実施例では、さらに、補助パネル３
４が閉断面構造内に配置されている。補助パネル３４
は、断面形状がコ字形を呈するもので、インナパネル３
１とアウタパネル３２とにスポット溶接されている。一
方、ダッシュパネル２２がフランジ３０に加えて、補助
パネル３４のフランジ３５と第２部分２９の上側に設け
たフランジ３３とにスポット溶接されている。In the illustrated embodiment, the auxiliary panel 3 is further provided.
4 are arranged in a closed cross-section structure. Auxiliary panel 34
Has a U-shaped cross section, and the inner panel 3
1 and the outer panel 32 are spot-welded. On the other hand, in addition to the flange 30, the dash panel 22 is spot-welded to the flange 35 of the auxiliary panel 34 and the flange 33 provided on the upper side of the second portion 29.
【００１５】補助の構造部材２４は、ハット形断面形状
をしたもので、一方の端部３８がフランジ３９をフロン
トピラー２６に重ね合せてスポット溶接されている。補
助の構造部材２４は、さらに、フランジ３９をダッシュ
パネル２２に重ね合せてダッシュパネル２２の隅部２３
にスポット溶接されているが、補助の構造部材２４の他
方の端部４０とダッシュパネル２２との間にはすきま４
２が設けられている。すきま４２の大きさは、高々数ミ
リでよい。The auxiliary structural member 24 has a hat-shaped cross-sectional shape, and one end portion 38 is spot-welded with the flange 39 overlapping the front pillar 26. The auxiliary structural member 24 further includes a flange 39 that is overlapped with the dash panel 22 so that a corner portion 23 of the dash panel 22 is formed.
Is spot welded to the dash panel 22 and the other end 40 of the auxiliary structural member 24 and the dash panel 22.
Two are provided. The size of the clearance 42 may be at most several millimeters.
【００１６】図２のａに示すように、補助の構造部材２
４の上片４４と下片４５とを重ね合せてスポット溶接
し、端部４０のダッシュパネル２２に対面する部分を実
質的にふたしてある。この場合、構造部材２４の端部４
０の上片４４および下片４５の重ね合せ部分とダッシュ
パネル２２とが、すきま４２をおいて実質的に平行に向
き合うように形成することが好ましい。これによれば、
フロントサイドメンバ２０からダッシュパネル２２に荷
重が加わってダッシュパネル２２が変形したとき、両者
の間に滑りが生じないばかりでなく、荷重を面と面との
接触によって伝達するため荷重の伝達効率を高めること
ができる。As shown in FIG. 2a, the auxiliary structural member 2
The upper piece 44 and the lower piece 45 of 4 are overlapped and spot-welded, and the portion of the end portion 40 facing the dash panel 22 is substantially covered. In this case, the end 4 of the structural member 24
It is preferable that the overlapping portion of the upper piece 44 and the lower piece 45 of 0 and the dash panel 22 are formed so as to face each other substantially in parallel with a clearance 42. According to this
When a load is applied to the dash panel 22 from the front side member 20 and the dash panel 22 is deformed, not only slippage does not occur between the two, but also the load is transmitted by contact between the surfaces, so that the load transmission efficiency is improved. Can be increased.
【００１７】自動車が通常の走行をするとき、荷重がフ
ロントサイドメンバ２０に加わるが、この荷重はダッシ
ュパネル２２、ダッシュパネル２２に接合されるカウル
（図示せず）およびロッカ４６などで受け止められる。
通常の走行時に加わる荷重より大きな荷重がフロントサ
イドメンバ２０に加わり、この荷重によってダッシュパ
ネル２２が変形すると、図２のｂに示すように、ダッシ
ュパネル２２が補助の構造部材２４の上片４４および下
片４５と接触することから、荷重は補助の構造部材２４
に伝わり、さらに、フロントピラー２６に伝わり、ここ
で受け止められる。When the vehicle normally travels, a load is applied to the front side member 20, and this load is received by the dash panel 22, a cowl (not shown) joined to the dash panel 22, a rocker 46, and the like.
When a load larger than the load applied during normal traveling is applied to the front side member 20 and the dash panel 22 is deformed by this load, as shown in FIG. Since it contacts with the lower piece 45, the load is an auxiliary structural member 24.
To the front pillar 26, and is received here.
【図１】本発明に係る自動車の構造部材の荷重伝達構造
の実施例の斜視図である。FIG. 1 is a perspective view of an embodiment of a load transmission structure for a structural member of an automobile according to the present invention.
【図２】パネルと補助の構造部材とを示す図１の２ー２
線で切断した断面図で、ａは通常の状態を、ｂはパネル
と補助の構造部材とが接触した状態を示している。2-2 of FIG. 1 showing the panel and auxiliary structural members
In the cross-sectional view taken along the line, a shows a normal state, and b shows a state where the panel and the auxiliary structural member are in contact with each other.
【図３】パネルと構造部材のフランジとの接合部を示す
断面図で、ａは誤差のない状態を、ｂは誤差の生じた状
態を示している。FIG. 3 is a cross-sectional view showing a joint portion between a panel and a flange of a structural member, where a is a state without error and b is a state with error.
２０ 第１の構造部材（フロントサイドメンバ） ２２ パネル（ダッシュパネル） ２４ 補助の構造部材 ２６ 第２の構造部材（フロントピラー） ４２ すきま 20 First Structural Member (Front Side Member) 22 Panel (Dash Panel) 24 Auxiliary Structural Member 26 Second Structural Member (Front Pillar) 42 Clearance
Claims (1)
１の構造部材の端面に接合したパネルと一方の端部が第
２の構造部材に接合された補助の構造部材とを介して前
記第２の構造部材に伝える荷重伝達構造であって、前記
補助の構造部材の他方の端部と前記パネルとの間にすき
まを設けた、自動車の構造部材の荷重伝達構造。1. A load applied to a first structural member is passed through a panel joined to an end face of the first structural member and an auxiliary structural member joined at one end to a second structural member. A load transmitting structure for a structural member of an automobile, wherein the load transmitting structure is transmitted to the second structural member, and a gap is provided between the panel and the other end of the auxiliary structural member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28391293A JPH07117717A (en) | 1993-10-19 | 1993-10-19 | Load transfer structure of automotive structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28391293A JPH07117717A (en) | 1993-10-19 | 1993-10-19 | Load transfer structure of automotive structural member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07117717A true JPH07117717A (en) | 1995-05-09 |
Family
ID=17671806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28391293A Pending JPH07117717A (en) | 1993-10-19 | 1993-10-19 | Load transfer structure of automotive structural member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07117717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008080818A (en) * | 2006-09-25 | 2008-04-10 | Mazda Motor Corp | Front body structure of automobile |
-
1993
- 1993-10-19 JP JP28391293A patent/JPH07117717A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008080818A (en) * | 2006-09-25 | 2008-04-10 | Mazda Motor Corp | Front body structure of automobile |
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