JP3410238B2 - Hollow profile - Google Patents
Hollow profileInfo
- Publication number
- JP3410238B2 JP3410238B2 JP33004694A JP33004694A JP3410238B2 JP 3410238 B2 JP3410238 B2 JP 3410238B2 JP 33004694 A JP33004694 A JP 33004694A JP 33004694 A JP33004694 A JP 33004694A JP 3410238 B2 JP3410238 B2 JP 3410238B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- hollow profile
- hollow
- width
- thickness
- 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.)
- Expired - Lifetime
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Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、車両や航空機等の構造
物の強度部材として用いられる中空形材に関するもので
ある。
【０００２】
【従来の技術】建築や車両、列車、航空機等の構造物
は、軽量化が望まれているため、中空部を有した中空形
材を強度部材として採用するようになっている。この中
空形材は、構造物の強度部材に使用されると、軸方向
力、曲げ力、剪断力、およびこれらの複合力からなる外
荷重を受けるため、外荷重に効率良く抵抗できることが
必要とされている。従って、従来は、縦設壁および横設
壁からなる口型の断面形状の中空部に補強用の中間壁を
設け、断面形状を日型や目型とした中空形材が構造物の
強度部材として多用されるようになっている。
【０００３】
【発明が解決しようとする課題】しかしながら、中空形
材を薄肉化して構造物の一層の軽量化を図ろうとする
と、上記従来の中空形材では、形材断面の構成要素であ
るパネル要素が薄く（幅厚比が大きく）なって強度が低
下し、中空形材全体よりもパネル要素が先に座屈し易い
ものになる。従って、中空形材の壁厚が強度と密接に関
係していることから、従来の中空形材の薄肉化には、所
定以上の強度を確保する必要があるという限界があり、
この薄肉化の限界は、構造物の一層の軽量化を図ろうと
する場合の大きな障害となる。
【０００４】従って、本発明においては、十分な軽量化
を可能にする程度にまで、所定以上の強度を確保しなが
ら薄肉化することができる中空形材を提供することを目
的としている。
【０００５】
【課題を解決するための手段】上記目的を解決するため
に、複数の矩形断面の中空部を軸方向に有するように、
横設壁と縦設壁とを備えた外壁内に中間壁が設けられて
いると共に、外荷重で上記外壁に対して上記軸方向に荷
重が作用するように配置され、所定以上の強度に形成さ
れた直線状の中空形材であって、上記縦設壁と横設壁と
の接続および／または上記外壁と中間壁との接続は、壁
幅を減少させるように、傾斜壁により行われており、該
傾斜壁は、上記中間壁を中心として上下対称に配置され
ていることを特徴としている。
【０００６】
【０００７】
【作用】上記の構成によれば、傾斜壁がパネル要素の有
効な縦設壁や横設壁、中間壁の壁幅を減少させて幅厚比
を減少させ、且つ支持剛性を高めて座屈応力を増大させ
ることから、壁厚を従来の中空形材の壁厚よりも小さな
値としても、従来の中空形材と同等の外荷重に対する抵
抗力を維持させることが可能になっており、結果として
十分に軽量化させることができる程度にまで強度を確保
しながら薄肉化することが可能になっている。
【０００８】
【実施例】本発明の一実施例を図１ないし図７を用いて
説明する。本実施例に係る中空形材は、例えば断面形状
が日型や目型、田型のように、横設壁と縦設壁とを備え
た外壁内に中間壁を設けることによって、複数の矩形断
面の中空部を有している。そして、縦設壁と横設壁との
接続および／または外壁と中間壁との接続は、縦設壁や
横設壁、中間壁の壁幅を減少させるように、傾斜壁によ
り行われている。
【０００９】即ち、断面形状が日型の場合について具体
的に説明すると、図１に示すように、中空形材１は、例
えばアルミ形材を押し出し加工することにより断面形状
が同一の直線状に形成されている。この中空形材１は、
同一長さに設定された一対の横設壁２・２を外壁の一部
として有しており、両横設壁２・２の中間位置には、横
設壁２・２よりも短い壁幅の中間壁３が横設壁２・２に
対して平行に設けられている。
【００１０】また、各横設壁２の両端には、縦設壁４・
４の一端が横設壁２に対して直角に接続されており、縦
設壁４・４の他端は、傾斜壁５・５を介して中間壁３の
両端に接続されている。そして、これらの縦設壁４…お
よび傾斜壁５…は、上述の横設壁２・２と中間壁３とで
二つの矩形断面の中空部６・６を形成するようになって
いる。
【００１１】上記の傾斜壁５は、縦設壁４および中間壁
３に対して所定の角度θ（０°＜θ＜９０°、望ましく
は３０°＜θ＜６０°）でもって傾斜されており、壁幅
Ｂｓが縦設壁４の壁幅Ｂf よりも十分に小さな値にされ
ている。そして、この傾斜壁５は、図３の縦設壁４と中
間壁３とが直接的に接続される場合と比較して、縦設壁
４および中間壁３の壁幅Ｂf ・Ｂw を減少させるように
なっている。また、傾斜壁５の壁厚Ｔｓは、中空形材１
全体の強度を調整可能とするように、中空形材１の壁厚
Ｔｆとは独立して調整されるようになっている。
【００１２】上記の構成において、中空形材１に外荷重
が付与された場合における抵抗力について説明する。
【００１３】先ず、周辺を支持された矩形板が一様な圧
縮力を受けた場合、板の幅厚比（Ｂ／Ｔ）と最大圧縮応
力（座屈応力）σcrとの弾性域における一般的な座屈応
力σcrは、（１）式で表される。
【００１４】
σcr＝〔ｋπＥ／１２（１−ν2 ）〕・〔Ｔ2 ／Ｂ2 〕 ・・・ （１）
但し、ｋは荷重および支持条件により決定される係数
（例えば矩形板の周辺が単純支持されている時はｋ≒
４．０）、Ｅは弾性係数、νはポアソン比、Ｔは壁厚、
Ｂは壁幅である。
【００１５】即ち、材料が同一の場合、座屈応力σ
crは、幅厚比（Ｂ／Ｔ）の２乗に反比例し、図４に示す
ような曲線関係となる。一方、幅厚比（Ｂ／Ｔ）が小さ
くなる非弾性の領域では、次第に座屈応力σcrが降伏応
力（σy ）に近づくことになる。従って、中空形材１の
薄肉化を図ろうとすると、幅厚比（Ｂ／Ｔ）の値が大き
くなり、中空形材１を構成するパネル要素個々の耐座屈
応力が低下し、結果として中空形材１全体の外荷重に対
する抵抗力が低下することになる。
【００１６】次に、図２および図３に示すように、本実
施例の中空形材１と従来の中空形材１１とを比較した場
合、本実施例の中空形材１の縦設壁４および中間壁３の
壁幅Ｂf ・Ｂw は、傾斜壁５が設けられているため、従
来の中空形材１１の縦設壁１４および中間壁１３の壁幅
Ｂ'f・Ｂ'wよりも小さな値となっている。従って、両中
空形材１・１１の壁厚Ｔｆ・Ｔ'fが同一値（Ｔ）であっ
たとすると、上述の（１）式から、中空形材１の幅厚比
（Ｂf ／Ｔ）・（Ｂw ／Ｔ）は、従来の中空形材１１の
幅厚比（Ｂ'f／Ｔ）・（Ｂ'w／Ｔ）よりも減少すること
から、中空形材１の座屈応力σcrは、従来の中空形材１
１の座屈応力σcrよりも増大することになる。
【００１７】また、傾斜壁５は、比較的に幅厚比（Ｂｓ
／Ｔｓ）が小さく、剛性の大きなパネル要素であり、縦
設壁４と中間壁３との間に介在することにより縦設壁４
と中間壁３との結合力を高めていると共に、折板として
の効果も発揮している。従って、傾斜壁５は、縦設壁４
と中間壁３の支持剛性を高めることによって、（１）式
の係数ｋの値を４．０よりも大きくし、結果として座屈
応力σcrを増大させることになる。
【００１８】これにより、本実施例の構成によれば、縦
設壁４と中間壁３とを接続する傾斜壁５が、パネル要素
の有効な壁幅を減少させて幅厚比を減少させ、且つ支持
剛性を高めて座屈応力σcrを増大させることから、壁厚
Ｔｆを従来の中空形材１１の壁厚Ｔ'fよりも小さな値と
しても、従来の中空形材１１と同等の外荷重に対する抵
抗力を維持させることが可能になっており、結果として
十分な軽量化を達成することができる程度にまで、強度
を確保しながら薄肉化することが可能になっている。
【００１９】また、本実施例の構成によれば、傾斜壁５
の壁厚Ｔｓが中空形材１の壁厚Ｔｆから独立して調整さ
れるようになっているため、傾斜壁５の板剛性および縦
設壁４と中間壁３との結合力を調整することによって、
中空形材１全体の強度を調整することが可能になってい
る。
【００２０】さらに、本実施例の構成によれば、傾斜壁
５の壁厚Ｔｓ、壁幅Ｂｓおよび角度θを調整することに
よって、断面の曲げ力に対する剛性の指標である断面２
次モーメント、若しくは軸方向力に対する抵抗、重量の
指標である断面積の値を図３の従来の中空形材１１と等
価にすることが可能になっている。また、傾斜壁５が意
匠的価値を生じさせることにもなっている。
【００２１】尚、本実施例における中空形材１は、縦設
壁４と中間壁３との間に傾斜壁５を設けた構成になって
いるが、これに限定されることはない。即ち、中空形材
１は、図５に示すように、縦設壁４と横設壁２とを傾斜
壁５で接続した構成や、図６に示すように、縦設壁４と
横設壁２とを傾斜壁５で接続し、且つ縦設壁４と中間壁
３とを傾斜壁５で接続した構成にされていても良い。さ
らには、図７に示すように、矩形断面の中空部６を三つ
有した断面目型の中空形材１において、２段の中間壁３
・３と各縦設壁４とを傾斜壁５で接続した構成にされて
いても良い。
【００２２】
【発明の効果】本発明は、以上のように、複数の矩形断
面の中空部を軸方向に有するように、横設壁と縦設壁と
を備えた外壁内に中間壁が設けられていると共に、外荷
重で上記外壁に対して上記軸方向に荷重が作用するよう
に配置され、所定以上の強度に形成された直線状の中空
形材であって、上記縦設壁と横設壁との接続および／ま
たは上記外壁と中間壁との接続は、壁幅を減少させるよ
うに、傾斜壁により行われており、該傾斜壁は、上記中
間壁を中心として上下対称に配置されている構成であ
る。
【００２３】これにより、傾斜壁がパネル要素の有効な
縦設壁や横設壁、中間壁の壁幅を減少させて幅厚比を減
少させ、且つ支持剛性を高めて座屈応力を増大させるこ
とから、壁厚を従来の中空形材の壁厚よりも小さな値と
しても、従来の中空形材と同の外荷重に対する抵抗力を
維持させることが可能になっており、結果として十分な
軽量化を達成させることができる程度にまで、薄肉化す
ることが可能であるという効果を奏する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow member used as a strength member for structures such as vehicles and aircraft. 2. Description of the Related Art Since it is desired to reduce the weight of structures such as buildings, vehicles, trains, and aircrafts, hollow members having hollow portions are used as strength members. When this hollow profile is used as a strength member of a structure, it receives an external load consisting of an axial force, a bending force, a shearing force, and a combined force thereof. Have been. Therefore, conventionally, a reinforcing intermediate wall is provided in a hollow portion having a mouth-shaped cross-sectional shape composed of a vertical wall and a horizontal wall, and a hollow member having a cross-sectional shape of a Japanese or an eye is a strength member of a structure. It has come to be used frequently. [0003] However, in order to further reduce the weight of the structure by reducing the thickness of the hollow profile, the above-described conventional hollow profile requires a panel which is a component of the cross section of the profile. The elements become thinner (the width-to-thickness ratio increases) and the strength is reduced, and the panel elements tend to buckle earlier than the entire hollow profile. Therefore, since the wall thickness of the hollow profile is closely related to the strength, there is a limit that it is necessary to secure a predetermined strength or more in thinning the conventional hollow profile,
This limit of thinning is a major obstacle in trying to further reduce the weight of the structure. Accordingly, it is an object of the present invention to provide a hollow member which can be reduced in thickness while securing a predetermined strength or more to such an extent that a sufficient weight reduction can be achieved. [0005] In order to solve the above-mentioned object, in order to have a plurality of hollow sections having a rectangular cross section in the axial direction,
An intermediate wall is provided in an outer wall having a horizontal wall and a vertical wall, and the intermediate wall is disposed so that a load is applied to the outer wall in the axial direction by an external load, and is formed to have a predetermined strength or more. a hollow profile linear that is, connected between the connection and / or the outer wall and the intermediate wall between the longitudinal設壁and horizontal設壁is to reduce wall width, is performed by inclined wall The inclined wall is characterized by being arranged vertically symmetrically about the intermediate wall. [0006] [0007] [action] According to the arrangement, the effective vertical設壁and horizontal設壁inclined wall panel element, reducing the wall width of the intermediate wall to reduce the width-thickness ratio, and support By increasing rigidity and buckling stress, it is possible to maintain the same resistance to external loads as conventional hollow profiles, even if the wall thickness is smaller than that of conventional hollow profiles. As a result, it is possible to reduce the thickness while securing the strength to such an extent that the weight can be sufficiently reduced. An embodiment of the present invention will be described with reference to FIGS. 1 to 7. The hollow profile according to the present embodiment has a plurality of rectangular shapes by providing an intermediate wall in an outer wall having a horizontal wall and a vertical wall, for example, a cross-sectional shape such as a Japanese shape, an eye shape, and a rice shape. It has a hollow section. The connection between the vertical wall and the horizontal wall and / or the connection between the outer wall and the intermediate wall is performed by an inclined wall so as to reduce the width of the vertical wall, the horizontal wall, and the intermediate wall. . More specifically, the case where the cross-sectional shape is a Japanese shape will be specifically described. As shown in FIG. 1, the hollow profile 1 is formed by extruding, for example, an aluminum profile into a linear shape having the same cross-sectional shape. Is formed. This hollow profile 1
It has a pair of horizontal walls 2.2 set to the same length as a part of the outer wall, and a wall width shorter than the horizontal walls 2.2 is located at an intermediate position between the two horizontal walls 2.2. Is provided in parallel with the horizontal walls 2. At each end of each horizontal wall 2, a vertical wall 4
One end of the vertical wall 4 is connected to the horizontal wall 2 at a right angle, and the other end of the vertical wall 4 is connected to both ends of the intermediate wall 3 via the inclined walls 5.5. The vertical walls 4 and the inclined walls 5 form the hollow portions 6.6 having two rectangular cross sections by the horizontal walls 2 and the intermediate wall 3 described above. The inclined wall 5 is inclined at a predetermined angle θ (0 ° <θ <90 °, preferably 30 ° <θ <60 °) with respect to the vertical wall 4 and the intermediate wall 3. , The wall width Bs is set to a value sufficiently smaller than the wall width Bf of the vertical wall 4. The inclined wall 5 reduces the wall widths Bf and Bw of the vertical wall 4 and the intermediate wall 3 as compared with the case where the vertical wall 4 and the intermediate wall 3 in FIG. 3 are directly connected. It has become. Also, the wall thickness Ts of the inclined wall 5 is the hollow profile 1
The wall thickness Tf of the hollow profile 1 is adjusted independently so that the overall strength can be adjusted. A description will be given of the resistance force when an external load is applied to the hollow profile 1 in the above configuration. First, when a rectangular plate whose periphery is supported is subjected to a uniform compressive force, the rectangular plate has a width-to-thickness ratio (B / T) and a maximum compressive stress (buckling stress) σ cr in a general elastic region. Typical buckling stress σ cr is expressed by equation (1). Σ cr = [kπE / 12 (1−ν 2 )] · [T 2 / B 2 ] (1) where k is a coefficient determined by a load and a supporting condition (for example, the periphery of a rectangular plate) When is simply supported, k ≒
4.0), E is the elastic modulus, ν is the Poisson's ratio, T is the wall thickness,
B is the wall width. That is, when the materials are the same, the buckling stress σ
cr is inversely proportional to the square of the width-thickness ratio (B / T), and has a curve relationship as shown in FIG. On the other hand, in the inelastic region where the width-to-thickness ratio (B / T) is small, the buckling stress σ cr gradually approaches the yield stress (σ y ). Therefore, when trying to reduce the thickness of the hollow profile 1, the value of the width-to-thickness ratio (B / T) increases, and the buckling resistance of each of the panel elements constituting the hollow profile 1 decreases, and as a result, the hollow profile 1 becomes hollow. The resistance of the entire profile 1 to the external load is reduced. Next, as shown in FIGS. 2 and 3, when the hollow profile 1 of the present embodiment is compared with the conventional hollow profile 11, a vertical wall 4 of the hollow profile 1 of the present embodiment is obtained. Since the inclined wall 5 is provided, the wall widths Bf and Bw of the intermediate wall 3 are smaller than the wall widths B'f and B'w of the vertical wall 14 and the intermediate wall 13 of the conventional hollow profile 11. Value. Therefore, assuming that the wall thicknesses Tf and T'f of the two hollow profiles 1 and 11 are the same value (T), the width-thickness ratio (Bf / T) · Since (Bw / T) is smaller than the width-to-thickness ratio (B'f / T). (B'w / T) of the conventional hollow profile 11, the buckling stress σ cr of the hollow profile 1 is , Conventional hollow profile 1
1 buckling stress σ cr . The inclined wall 5 has a relatively large width-to-thickness ratio (Bs
/ Ts) is a panel element having a small rigidity and a large rigidity, and is interposed between the vertical wall 4 and the intermediate wall 3 so that the vertical wall 4
And the intermediate wall 3 as well as an effect as a folded plate. Therefore, the inclined wall 5 is the vertical wall 4
By increasing the support rigidity of the intermediate wall 3, the value of the coefficient k in the equation (1) is made larger than 4.0, and as a result, the buckling stress σ cr is increased. [0018] Thus, according to the configuration of this embodiment, the inclined wall 5 which connects the longitudinal設壁4 and the intermediate wall 3, decreases the effective wall width of the panel element to reduce the width-thickness ratio, Further, since the buckling stress σ cr is increased by increasing the support rigidity, even if the wall thickness Tf is smaller than the wall thickness T′f of the conventional hollow section 11, the outer thickness is equivalent to that of the conventional hollow section 11. It is possible to maintain the resistance to the load, and as a result, it is possible to reduce the thickness while securing the strength to the extent that sufficient weight reduction can be achieved. Further, according to the configuration of the present embodiment, the inclined wall 5
Is adjusted independently of the wall thickness Tf of the hollow profile 1, so that the plate rigidity of the inclined wall 5 and the coupling force between the vertical wall 4 and the intermediate wall 3 can be adjusted. By
The strength of the entire hollow profile 1 can be adjusted. Further, according to the configuration of the present embodiment, by adjusting the wall thickness Ts, wall width Bs and angle θ of the inclined wall 5, the cross section 2 which is an index of the rigidity against the bending force of the cross section is adjusted.
It is possible to make the value of the cross sectional area which is an index of the resistance to the next moment or the axial force and the weight of the conventional hollow member 11 of FIG. 3 equivalent. In addition, the inclined wall 5 also generates design value. The hollow profile 1 in the present embodiment has a configuration in which the inclined wall 5 is provided between the vertical wall 4 and the intermediate wall 3, but the present invention is not limited to this. That is, the hollow profile 1 has a configuration in which the vertical wall 4 and the horizontal wall 2 are connected by the inclined wall 5 as shown in FIG. 5, or the vertical wall 4 and the horizontal wall 2 as shown in FIG. 2 may be connected by an inclined wall 5, and the vertical wall 4 and the intermediate wall 3 may be connected by an inclined wall 5. Further, as shown in FIG. 7, in the hollow section 1 having a cross section having three hollow sections 6 each having a rectangular section, a two-stage intermediate wall 3 is provided.
The configuration may be such that 3 and each vertical wall 4 are connected by the inclined wall 5. As described above, according to the present invention, an intermediate wall is provided in an outer wall having a horizontal wall and a vertical wall so as to have a plurality of hollow sections having a rectangular cross section in the axial direction. While being, is arranged so that a load acts on the outer wall in the axial direction with an external load , a linear hollow shape formed with a predetermined strength or more, The connection between the vertical wall and the horizontal wall and / or the connection between the outer wall and the intermediate wall are performed by an inclined wall so as to reduce the wall width, and the inclined wall is centered on the intermediate wall. This is a configuration arranged vertically symmetrically. [0023] Thus, effective vertical設壁and horizontal設壁inclined wall panel element, reducing the width-thickness ratio of the wall width of the intermediate wall is reduced
Since the buckling stress is increased by reducing the supporting rigidity and increasing the supporting stiffness, even if the wall thickness is smaller than the wall thickness of the conventional hollow profile, the same resistance to the external load as the conventional hollow profile can be obtained. It is possible to maintain the thickness, and as a result, there is an effect that the thickness can be reduced to such an extent that a sufficient weight reduction can be achieved.
【図面の簡単な説明】
【図１】本発明を示すものであり、中空形材の斜視図で
ある。
【図２】本発明の中空形材の断面形状を示す説明図であ
る。
【図３】従来の中空形材の断面形状を示す説明図であ
る。
【図４】座屈応力と幅厚比との関係を示すグラフであ
る。
【図５】中空形材の断面形状を示す説明図である。
【図６】中空形材の断面形状を示す説明図である。
【図７】中空形材の断面形状を示す説明図である。
【符号の説明】
１ 中空形材
２ 横設壁
３ 中間壁
４ 縦設壁
５ 傾斜壁
６ 中空部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, which shows the present invention, is a perspective view of a hollow profile. FIG. 2 is an explanatory view showing a cross-sectional shape of the hollow profile of the present invention. FIG. 3 is an explanatory view showing a cross-sectional shape of a conventional hollow member. FIG. 4 is a graph showing a relationship between a buckling stress and a width-to-thickness ratio. FIG. 5 is an explanatory diagram showing a cross-sectional shape of a hollow member. FIG. 6 is an explanatory view showing a cross-sectional shape of a hollow member. FIG. 7 is an explanatory diagram showing a cross-sectional shape of a hollow profile. [Description of Signs] 1 hollow profile 2 horizontal wall 3 intermediate wall 4 vertical wall 5 inclined wall 6 hollow portion
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 春生 山口県下関市長府港町14番１号 株式会 社神戸製鋼所 長府製造所内 (56)参考文献 特開 平６−32246（ＪＰ，Ａ) 特開 平５−178144（ＪＰ，Ａ) ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Haruo Kato 14-1, Chofu Minatocho, Shimonoseki City, Yamaguchi Prefecture Stock Association Inside the Kobe Steel Chofu Works (56) References JP-A-6-32246 (JP, A) JP-A-5-178144 (JP, A)
Claims (1)
るように、横設壁と縦設壁とを備えた外壁内に中間壁が
設けられていると共に、外荷重で上記外壁に対して上記
軸方向に荷重が作用するように配置され、所定以上の強
度に形成された直線状の中空形材であって、 上記縦設壁と横設壁との接続および／または上記外壁と
中間壁との接続は、壁幅を減少させるように、傾斜壁に
より行われており、該傾斜壁は、上記中間壁を中心とし
て上下対称に配置されていることを特徴とする中空形
材。(57) [Claim 1] An intermediate wall is provided in an outer wall having a horizontal wall and a vertical wall so as to have a plurality of hollow portions having a rectangular cross section in the axial direction. In addition, a linear hollow member that is arranged so that the load acts on the outer wall in the axial direction with an external load, and is formed to have a strength equal to or greater than a predetermined value. And / or the connection between the outer wall and the intermediate wall is performed by an inclined wall so as to reduce the wall width, and the inclined wall is arranged symmetrically about the intermediate wall. A hollow profile characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33004694A JP3410238B2 (en) | 1994-12-05 | 1994-12-05 | Hollow profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33004694A JP3410238B2 (en) | 1994-12-05 | 1994-12-05 | Hollow profile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08155534A JPH08155534A (en) | 1996-06-18 |
| JP3410238B2 true JP3410238B2 (en) | 2003-05-26 |
Family
ID=18228178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33004694A Expired - Lifetime JP3410238B2 (en) | 1994-12-05 | 1994-12-05 | Hollow profile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3410238B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4909092B2 (en) * | 2007-01-10 | 2012-04-04 | 本田技研工業株式会社 | Light alloy extrusion frame |
-
1994
- 1994-12-05 JP JP33004694A patent/JP3410238B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08155534A (en) | 1996-06-18 |
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