JPH09263262A - Vehicle substructure - Google Patents
Vehicle substructureInfo
- Publication number
- JPH09263262A JPH09263262A JP7163296A JP7163296A JPH09263262A JP H09263262 A JPH09263262 A JP H09263262A JP 7163296 A JP7163296 A JP 7163296A JP 7163296 A JP7163296 A JP 7163296A JP H09263262 A JPH09263262 A JP H09263262A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- vehicle body
- impact
- impact load
- reinforcement
- 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、車両の下部構造に
関し、特に、側面衝突時において車体に横方向から加わ
る衝撃荷重に対する対策が施された車両の下部構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle undercarriage, and more particularly to a vehicle undercarriage which is provided with measures against a lateral impact load applied to a vehicle body during a side collision.
【０００２】[0002]
【従来の技術】従来、トラック車体あるいはＲＶ（リク
リエーショナル・ビークル）と呼ばれる車体等において
は、例えば特開平５−１９３５２２号公報に記載されて
いるように梯子状のシャシフレームを備えており、この
シャシフレーム上に、車室を構成する車室フレームが組
み付けられるようになっている。上記シャシフレーム
は、前後方向に延びる一対のサイドメンバと、これらサ
イドメンバ間を連結するクロスメンバとによって梯子状
に形成され、上記サイドメンバに複数の車室支持部が前
後方向に間隔をおいて設けられて、車室フレームを支持
している。2. Description of the Related Art Conventionally, a vehicle body called a truck body or an RV (recreation vehicle) is provided with a ladder-shaped chassis frame as described in, for example, Japanese Unexamined Patent Publication No. 5-193522. A vehicle compartment frame that constitutes a vehicle compartment is mounted on the chassis frame. The chassis frame is formed in a ladder shape by a pair of side members extending in the front-rear direction and a cross member connecting the side members, and a plurality of vehicle compartment support portions are provided on the side member at intervals in the front-rear direction. It is provided and supports the passenger compartment frame.
【０００３】[0003]
【発明が解決しようとする課題】ところで、車室フレー
ムはシャシフレームのサイドメンバの左右の幅よりも幅
広く形成され、しかも車室フレームはシャシフレームに
比べて一般に強度が低いので、側面衝突を受けた際に車
体に横方向から大きな衝撃荷重が加わると、車室フレー
ムがサイドメンバの位置まで潰れるとともに、側面衝突
を受けた側のサイドメンバに対してこれを斜め下方に押
圧する力が作用することが多い。By the way, since the vehicle compartment frame is formed wider than the left and right widths of the side members of the chassis frame, and since the vehicle compartment frame is generally lower in strength than the chassis frame, it suffers a side collision. When a large impact load is applied to the vehicle body from the lateral direction at this time, the passenger compartment frame is crushed to the position of the side member, and a force that obliquely presses the side member on the side subject to the side collision acts on the side member. Often.
【０００４】このため、側面衝突を受けた側のサスペン
ションスプリングが下方に圧縮され、この圧縮されたサ
スペンションスプリングが、その反動で衝撃荷重の消滅
に伴って伸長して、車体を大きくロールさせるので、一
時的に車体姿勢が不安定になるという問題があった。For this reason, the suspension spring on the side which receives the side collision is compressed downward, and the compressed suspension spring expands due to the reaction when the impact load disappears, causing the vehicle body to roll greatly. There was a problem that the body posture became temporarily unstable.
【０００５】上述の事情に鑑み、本発明は、シャーシフ
レームを備えた車両が側面衝突を受けた際の車室が受け
るダメージを軽減するとともに車体姿勢の悪化を防止し
得る車両の下部構造を提供することを目的とする。In view of the above-mentioned circumstances, the present invention provides a vehicle underbody structure capable of reducing damage to a vehicle compartment when a vehicle provided with a chassis frame undergoes a side collision and preventing deterioration of a vehicle body posture. The purpose is to do.
【０００６】[0006]
【課題を解決するための手段】本発明は、シャシフレー
ムの車体前後方向に延びる一対のサイドメンバに複数の
車室支持部が車体前後方向に間隔をおいて設けられ、こ
のシャシフレーム上に、車室が上記複数の車室支持部に
支持される態様で組み付けられてなる車両において、上
記サイドメンバに、側面衝突時において車体に側方から
加わる衝撃荷重を受け止めるための外側方へ突出する突
出部を、上記複数の車室支持部間において設けてなるこ
とを特徴とするものである。SUMMARY OF THE INVENTION According to the present invention, a plurality of passenger compartment support portions are provided at a pair of side members extending in the vehicle body front-rear direction of a chassis frame at intervals in the vehicle body front-rear direction. In a vehicle assembled such that a vehicle compartment is supported by the plurality of vehicle compartment support portions, the side member has an outwardly projecting projection for receiving an impact load applied to the vehicle body from the side during a side collision. A part is provided between the plurality of vehicle compartment support parts.
【０００７】さらに本発明による車両の下部構造では、
車室フレームの底部に設けられて車幅方向に延びるクロ
スメンバに、側端部が上記クロスメンバの側端部から外
側方へ突出する補強部材を上記クロスメンバに沿って固
設するとともに、側面衝突時に加わる衝撃荷重を上記補
強部材と上記突出部とに分散させるための部材を、上記
補強部材の外側方と上記突出部の外側方との間に亘って
設けることが好ましい。Further, in the vehicle substructure according to the present invention,
A reinforcing member having a lateral end protruding outward from a lateral end of the cross member is fixed to a cross member that is provided at the bottom of the passenger compartment frame and extends in the vehicle width direction. It is preferable to provide a member for dispersing an impact load applied at the time of collision between the reinforcing member and the protruding portion, between the outer side of the reinforcing member and the outer side of the protruding portion.
【０００８】[0008]
【発明の効果】本発明によれば、シャシフレームのサイ
ドメンバに、側面衝突時において車体に側方から加わる
衝撃荷重を受け止めるための外側方へ突出する突出部を
設けたので、車室が受けるダメージが軽減されるととも
に、車体全体に対してこれを横幅方向に移動させる力が
働くことになる。したがって、側面衝突を受けた側のサ
スペンションスプリングが下方に圧縮されてその反動で
車体を大きくロールすることを防止して、走行安定性を
確保することができる。According to the present invention, since the side member of the chassis frame is provided with the protruding portion protruding outward for receiving the impact load applied to the vehicle body from the side in the event of a side collision, the vehicle compartment receives it. The damage is reduced, and the force that moves it in the lateral direction acts on the entire vehicle body. Therefore, it is possible to prevent the suspension spring on the side that has received the side collision from being compressed downward and roll the vehicle body largely due to its reaction, thereby ensuring traveling stability.
【０００９】また、車室フレームのクロスメンバに固設
した補強部材の外側方と上記突出部の外側方とに亘っ
て、衝撃分散用部材を設けた場合は、側面衝突時におい
て車室が受けるダメージをさらに軽減することができ、
車室内の乗員の安全性を高めることができる。Further, when the impact dispersing member is provided over the outer side of the reinforcing member fixed to the cross member of the passenger compartment frame and the outer side of the projecting portion, the passenger compartment receives the side collision at the time of side collision. You can reduce the damage further,
The safety of passengers in the vehicle compartment can be improved.
【００１０】[0010]
【発明の実施の形態】以下、本発明による車両の下部構
造の実施の形態を図面に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a vehicle substructure according to the present invention will be described below with reference to the drawings.
【００１１】図１は、本発明の一の形態を備えたトラッ
ク車体の斜視図で、車体１は、エンジンルーム２と、車
室３と、荷台４とによって構成されている。本実施の形
態においては、車室３のドア５の後縁から荷台４に至る
領域、すなわち、いわゆるＢピラーとＣピラーとの間の
領域５に対して、以下に述べる側面衝突対策が施されて
いる。FIG. 1 is a perspective view of a truck body having one embodiment of the present invention. The body 1 is composed of an engine room 2, a vehicle compartment 3 and a luggage carrier 4. In the present embodiment, the side collision countermeasures described below are applied to the region from the rear edge of the door 5 of the vehicle interior 3 to the luggage carrier 4, that is, the region 5 between the so-called B pillar and C pillar. ing.
【００１２】図２は、シャーシフレームの車室３が組み
付けられる部分のみを示す平面図、図３は同側面図、図
４は図２のIV−IV線に沿った断面図である。このシャー
シフレーム１０は、左右一対のサイドメンバ１１，１１
と、これらサイドメンバ１１，１１間を連結するクロス
メンバ１２，１３とによって梯子状に構成されている。2 is a plan view showing only a portion of the chassis frame to which the vehicle compartment 3 is assembled, FIG. 3 is a side view of the same, and FIG. 4 is a sectional view taken along line IV-IV of FIG. The chassis frame 10 includes a pair of left and right side members 11, 11.
And cross members 12 and 13 connecting between the side members 11 and 11 are formed in a ladder shape.
【００１３】各サイドメンバ１１には、車室支持部１
４，１５が車体前後方向に間隔をおいて設けられ、車室
３が主として４個の車室支持部１４，１４，１５，１５
によってシャーシフレーム１０上に支持固定されるよう
になっている。そして、前後の車室支持部１４，１５間
に、側面衝突時において車体に側方から加わる衝撃荷重
を受け止めるための外側方へ突出する突出部材１６，１
７が固設されている。Each side member 11 has a passenger compartment support 1
4, 15 are provided at intervals in the front-rear direction of the vehicle body, and the vehicle compartment 3 is mainly composed of four vehicle compartment support portions 14, 14, 15, 15.
Is supported and fixed on the chassis frame 10. Then, between the front and rear vehicle compartment support portions 14 and 15, projecting members 16 and 1 projecting outward for receiving an impact load applied to the vehicle body from the side during a side collision.
7 is fixed.
【００１４】車室３を構成する車室フレームは、その底
部に、シャーシフレーム１０のサイドメンバ１１，１１
を横切るようにシャーシフレーム１０上に載置されるク
ロスメンバ１８を備えており、このクロスメンバ１８の
両側端部は、後方側の突出部材１７，１７の上方に位置
するように、サイドメンバ１１，１１から外側方に突出
している。The passenger compartment frame forming the passenger compartment 3 has side members 11, 11 of the chassis frame 10 at the bottom thereof.
The cross member 18 is mounted on the chassis frame 10 so as to traverse the side member 11. , 11 projecting outward.
【００１５】上記クロスメンバ１８上には、一般に「イ
ンパクトパイプ」と呼ばれる、パイプ状の補強部材２０
が複数個のブラケット１９を介してクロスメンバ１８に
沿って溶接されており、この補強部材２０の側端部は、
図４からも明らかなように、クロスメンバ１８の側端部
からさらに外側方へ突出している。この補強部材２０
は、側面衝突時において車室３に側方から加わる衝撃荷
重を受け止める機能を有する。On the cross member 18, a pipe-shaped reinforcing member 20 generally called "impact pipe" is provided.
Are welded along the cross member 18 via a plurality of brackets 19, and the side end portion of the reinforcing member 20 is
As is apparent from FIG. 4, the cross member 18 further projects outward from the side end portion thereof. This reinforcing member 20
Has a function of receiving an impact load applied to the vehicle compartment 3 from the side during a side collision.
【００１６】図５は、図１で符号５で示す領域における
車室３のインナーパネル２１およびその下部に接合され
たサイドシルインナ２２に種々のレインフォースメント
および衝撃分散用部材が取り付けられた状態を示す側面
図、図６は図５のVI−VI線に沿った断面図、図７は図５
の VII−VII 線に沿った断面図である。FIG. 5 shows a state in which various reinforcement and impact dispersion members are attached to the inner panel 21 of the passenger compartment 3 and the side sill inner 22 joined to the lower portion of the inner panel 21 in the area indicated by reference numeral 5 in FIG. 6 is a side view, FIG. 6 is a sectional view taken along line VI-VI of FIG. 5, and FIG.
FIG. 7 is a sectional view taken along line VII-VII of FIG.
【００１７】図５に示すように、インナーパネル２１と
サイドシルインナ２２との前縁部には、この前縁部に沿
って上下方向に延びるＢピラーレインンフォースメント
アウタ２３ａとその裏面側に接合されたＢピラーレイン
ンフォースメントインナ２３ｂとからなるＢピラーレイ
ンンフォースメント２３がＢピラーの補強部材として接
合され、このレインンフォースメント２３の上端はルー
フレインンフォースメント（図示は省略）に接合されて
いる。なお、図５においては、Ｂピラーレインンフォー
スメントインナ２３ｂを実線で描いてある。As shown in FIG. 5, the inner edge of the inner panel 21 and the side sill inner 22 are joined to the B-pillar reinforcement outer 23a extending vertically along the front edge and the rear surface thereof. The B-pillar reinforcement 23, which is composed of the formed B-pillar reinforcement inner 23b, is joined as a reinforcing member of the B-pillar, and the upper end of the reinforcement 23 is a roof reinforcement (not shown). It is joined. Incidentally, in FIG. 5, the B pillar reinforcement reinforcement 23b is drawn by a solid line.
【００１８】また、インナーパネル２１の後縁部の下方
部からサイドシルインナ２２に亘って、Ｃピラーの補強
部材であるＣピラーレインンフォースメント２５が接合
されている。そして、サイドシルインナ２２の内壁面に
はクロスメンバ１８の側端部が接合され、クロスメンバ
１８上に固設されているパイプ状の補強部材（インパク
トパイプ）２０の端部は、インナーパネル２１とサイド
シルインナ２２との接合部を貫通して外側方へ突出して
いる。A C-pillar reinforcement 25, which is a reinforcing member for the C-pillar, is joined from the lower portion of the rear edge of the inner panel 21 to the side sill inner 22. The side end of the cross member 18 is joined to the inner wall surface of the side sill inner 22, and the end of the pipe-shaped reinforcing member (impact pipe) 20 fixed on the cross member 18 is connected to the inner panel 21. It penetrates the joint with the side sill inner 22 and projects outward.
【００１９】サイドシルインナ２２の外壁面には、側面
衝突時において車体に側方から加わる衝撃荷重を補強部
材２０とその下方の突出部材１７とに分散させるための
第１の衝撃分散用部材２４が固設されている。この部材
２４は縦長の箱状に形成され、その上部は補強部材２０
の側端部を覆い、下部はサイドシルインナ２２を挟んで
突出部材１７の側端面１７ａに対向している。したがっ
て、側面衝突時には、この衝撃分散用部材２４が補強部
材２０の側端部に当接して衝撃荷重を補強部材２０およ
びクロスメンバ１８に伝達するとともに、衝撃荷重をサ
イドシルインナ２２を介してサイドフレーム１１の突出
部材１７にも伝達する。この衝撃分散用部材２４は、そ
の両側縁に形成された上下方向に延びるフランジ２４
ａ，２４ａによって、Ｂピラーレインンフォースメント
アウタ２３ａの後方にこれと隣接してサイドシルインナ
２１の外壁面に溶接固定されている。On the outer wall surface of the side sill inner 22, there is provided a first impact dispersion member 24 for dispersing the impact load applied to the vehicle body from the side at the time of a side collision into the reinforcing member 20 and the projecting member 17 therebelow. It is fixed. This member 24 is formed in a vertically long box shape, and the upper part thereof is the reinforcing member 20.
The lower end faces the side end surface 17a of the protruding member 17 with the side sill inner 22 interposed therebetween. Therefore, at the time of a side collision, the impact dispersion member 24 abuts the side end portion of the reinforcing member 20 to transmit the impact load to the reinforcing member 20 and the cross member 18, and the impact load via the side sill inner 22. It is also transmitted to the protruding member 17 of 11. The impact dispersion member 24 includes a flange 24 formed on both side edges thereof and extending in the vertical direction.
By a and 24a, they are welded and fixed to the outer wall surface of the side sill inner 21 behind and adjacent to the B pillar reinforcement outer 23a.
【００２０】また、上記衝撃分散用部材２２の外側方に
は、さらに第２の衝撃分散用部材２６が設けられてお
り、この部材２６は、Ｂピラーレインンフォースメント
アウタ２３ａの下方部とＣピラーレインンフォースメン
ト２５の下方部との間に接続されて、車体に側方から加
わる衝撃荷重をＢピラーレインンフォースメント２３と
Ｃピラーレインンフォースメント２５とに分散させる機
能を有する。なお、図６において符号６で示す部材は、
Ｂピラーから後方のアウタパネルを形成するＢピラーア
ウタ部材であり、Ｂピラーインナ部材はインナーパネル
２１およびサイドシルインナ２２によって構成される。A second impact dispersion member 26 is further provided on the outer side of the impact dispersion member 22. This member 26 is located below the C portion of the B pillar reinforcement reinforcement 23a. It is connected between the lower part of the pillar reinforcement 25 and has a function of dispersing an impact load applied to the vehicle body from the side to the B pillar reinforcement 23 and the C pillar reinforcement 25. The member indicated by reference numeral 6 in FIG.
A B-pillar outer member that forms a rear outer panel from the B-pillar, and the B-pillar inner member includes an inner panel 21 and a side sill inner 22.
【００２１】以上が本発明による車両の下部構造の一実
施の形態の構成であるが、本実施の形態によれば、車室
３の下部に側面衝突を受けると、その衝撃荷重が第２の
衝撃分散用部材２６の作用でＢピラーレインンフォース
メント２３とＣピラーレインンフォースメント２５とに
伝達され、かつ、第１の衝撃分散用部材２４を通じて補
強部材２０およびクロスメンバ１８とサイドフレーム１
１の突出部材１７とに分散されるから、車室３の部分的
なダメージを軽減することができるとともに、車体１全
体を車幅方向に移動させる力が働いて、車体１が大きく
ロールするのを防止することができ、側面衝突時の走行
安定性を確保することができる。The above is the configuration of one embodiment of the vehicle undercarriage according to the present invention. According to the present embodiment, when a side impact is applied to the lower portion of the passenger compartment 3, the impact load thereof is the second. It is transmitted to the B-pillar reinforcement 23 and the C-pillar reinforcement 25 by the action of the impact dispersion member 26, and through the first impact dispersion member 24, the reinforcing member 20, the cross member 18, and the side frame 1
Since it is dispersed in the projecting member 17 of No. 1, it is possible to reduce partial damage to the vehicle interior 3, and a force for moving the entire vehicle body 1 in the vehicle width direction acts to cause the vehicle body 1 to roll greatly. Therefore, it is possible to prevent the vehicle from running and to ensure traveling stability during a side collision.
【図１】本発明の一の形態を備えたトラック車体の斜視
図FIG. 1 is a perspective view of a truck body having one embodiment of the present invention.
【図２】車室が組み付けられるシャーシフレーム部分を
示す平面図FIG. 2 is a plan view showing a chassis frame portion to which a vehicle compartment is assembled.
【図３】同 側面図FIG. 3 is a side view of the same.
【図４】図２のIV−IV線に沿った断面図FIG. 4 is a sectional view taken along line IV-IV in FIG.
【図５】車室のインナーパネルの側面図[Fig. 5] Side view of the inner panel of the passenger compartment
【図６】図５のVI−VI線に沿った断面図FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;
【図７】図５の VII−VII 線に沿った断面図7 is a sectional view taken along line VII-VII of FIG.
【符号の説明】 １ 車体 ３ 車室 １０ シャーシフレーム １１ シャーシフレームのサイドメンンバ １４，１５ 車室支持部 １６，１７ 突出部材 １８ 車室フレームのクロスメンバ ２０ 補強部材（インパクトパイプ） ２１ 車室のインナーパネル ２２ サイドシルインナ ２３ Ｂピラーレインフォースメント ２３ａ Ｂピラーレインフォースメントアウタ ２３ｂ Ｂピラーレインフォースメントインナ ２４，２６ 衝撃分散用部材 ２５ Ｃピラーレインフォースメント[Explanation of reference numerals] 1 vehicle body 3 vehicle interior 10 chassis frame 11 chassis frame side members 14, 15 vehicle interior supporting portion 16, 17 projecting member 18 vehicle interior frame cross member 20 reinforcement member (impact pipe) 21 vehicle interior inner panel 22 Side Sill Inner 23 B Pillar Reinforcement 23a B Pillar Reinforcement Outer 23b B Pillar Reinforcement Inner 24,26 Impact Dispersing Member 25 C Pillar Reinforcement
Claims (2)
一対のサイドメンバに複数の車室支持部が車体前後方向
に間隔をおいて設けられ、上記シャシフレーム上に、車
室が上記複数の車室支持部に支持される態様で組み付け
られてなる車両において、 上記サイドメンバに、側面衝突時において車体に側方か
ら加わる衝撃荷重を受け止めるための外側方へ突出する
突出部を、上記複数の車室支持部間において設けてなる
ことを特徴とする車両の下部構造。1. A plurality of vehicle compartment support portions are provided at a pair of side members extending in the vehicle body front-rear direction of the chassis frame at intervals in the vehicle body front-rear direction, and the vehicle compartments are provided on the chassis frame. In a vehicle assembled so as to be supported by a support portion, the side member has a plurality of protrusions protruding outward to receive an impact load applied to the vehicle body from a side during a side collision. A lower structure of a vehicle, which is provided between supporting portions.
向に延びるクロスメンバに、側端部が上記クロスメンバ
の側端部から外側方へ突出する補強部材を固設するとと
もに、側面衝突時に加わる衝撃荷重を上記補強部材と上
記突出部とに分散させるための部材を、上記補強部材の
外側方と上記突出部の外側方との間に亘って設けてなる
ことを特徴とする請求項１記載の車両の下部構造。2. A cross member that is provided at the bottom of a vehicle compartment frame and extends in the vehicle width direction is provided with a reinforcing member whose side end projects outward from the side end of the cross member, and a side collision. A member for dispersing an impact load applied at a time between the reinforcing member and the protruding portion is provided between an outer side of the reinforcing member and an outer side of the protruding portion. The lower structure of the vehicle according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07163296A JP3911717B2 (en) | 1996-03-27 | 1996-03-27 | Undercarriage of the vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07163296A JP3911717B2 (en) | 1996-03-27 | 1996-03-27 | Undercarriage of the vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09263262A true JPH09263262A (en) | 1997-10-07 |
| JP3911717B2 JP3911717B2 (en) | 2007-05-09 |
Family
ID=13466230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07163296A Expired - Fee Related JP3911717B2 (en) | 1996-03-27 | 1996-03-27 | Undercarriage of the vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3911717B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001233254A (en) * | 2000-02-22 | 2001-08-28 | Mitsubishi Automob Eng Co Ltd | Vehicle body structure |
| JP2005313686A (en) * | 2004-04-27 | 2005-11-10 | Mazda Motor Corp | Side vehicle body structure for vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7063072B2 (en) * | 2018-04-06 | 2022-05-09 | トヨタ自動車株式会社 | Vehicle skeleton structure |
| CN110155176B (en) * | 2019-06-28 | 2020-12-11 | 长城汽车股份有限公司 | Vehicle frame structure |
-
1996
- 1996-03-27 JP JP07163296A patent/JP3911717B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001233254A (en) * | 2000-02-22 | 2001-08-28 | Mitsubishi Automob Eng Co Ltd | Vehicle body structure |
| JP2005313686A (en) * | 2004-04-27 | 2005-11-10 | Mazda Motor Corp | Side vehicle body structure for vehicle |
| JP4529533B2 (en) * | 2004-04-27 | 2010-08-25 | マツダ株式会社 | Vehicle side body structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3911717B2 (en) | 2007-05-09 |
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