JPH07197927A - Connecting rod made of resin and manufacture thereof - Google Patents
Connecting rod made of resin and manufacture thereofInfo
- Publication number
- JPH07197927A JPH07197927A JP35284393A JP35284393A JPH07197927A JP H07197927 A JPH07197927 A JP H07197927A JP 35284393 A JP35284393 A JP 35284393A JP 35284393 A JP35284393 A JP 35284393A JP H07197927 A JPH07197927 A JP H07197927A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- cross
- resin
- shaped portion
- connecting rod
- 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
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、自動車等のエンジン
のロール方向の動きを抑制し、または振動を抑制するだ
めのトルクロッド等の樹脂製連結ロッド及びその製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin connecting rod such as a torque rod for suppressing the movement of an engine of an automobile or the like in the roll direction or suppressing vibration, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来の樹脂製連結ロッドとしては、図８
に示すものが知られている。これは、ロッド状部分１０
０と、このロッド状部分１００の両端部分に一体成形さ
れた筒状部分１０１と、筒状部分１０１内に配設した弾
性体１０２と、弾性体１０２の中央に設けた内筒１０３
とを有している。このような樹脂製連結ロッドは、ロッ
ド状部分１００の長手方向の片側中央位置（矢印２０
０）が樹脂材料を射出する成形金型のゲートとなり、こ
のゲートからキャビティ内へ射出された樹脂材料の合流
地点、すなわちウェルドラインは符号２０１，２０２で
示す個所、すなわちロッド状部分１００の中心軸線１０
０Ａの延長線上となる。ロッド状部分１００の長手方向
に直交する方向にロッド状部分１００を切断、すなわち
図８のＡ−Ａ線端面における断面形状は、ロッド状部分
１００の中心軸線１００Ａに直交しかつ筒状部分１０１
の軸線に平行な線１００Ｂを挟んで左右対称形状となっ
ている。2. Description of the Related Art A conventional resin connecting rod is shown in FIG.
Those shown in are known. This is the rod-shaped part 10
0, a tubular portion 101 integrally formed at both end portions of the rod-shaped portion 100, an elastic body 102 arranged in the tubular portion 101, and an inner cylinder 103 provided in the center of the elastic body 102.
And have. Such a resin connecting rod is provided at a central position on one side (arrow 20) in the longitudinal direction of the rod-shaped portion 100.
0) is a gate of a molding die for injecting a resin material, and a confluence point of the resin material injected into the cavity from this gate, that is, a weld line is a portion indicated by reference numerals 201 and 202, that is, a central axis line of the rod-shaped portion 100. 10
It is an extension of 0A. The rod-shaped portion 100 is cut in a direction orthogonal to the longitudinal direction of the rod-shaped portion 100, that is, the cross-sectional shape of the end surface along the line AA in FIG. 8 is orthogonal to the central axis 100A of the rod-shaped portion 100 and the tubular portion 101.
It has a left-right symmetric shape with a line 100B parallel to the axis line of.
【０００３】[0003]
【発明が解決しようとする課題】金属製連結ロッドに比
べて樹脂製連結ロッドは、製作工程数も少なく、軽量化
及びコストダウンを図れるが、最大荷重を受ける部位に
ウェルドライン２０１，２０２が存在するため、強度的
に信頼性を欠くものであった。強度的に十分なものとす
るために樹脂の肉厚を厚くすると、材料費が嵩み、成形
サイクルが長くなり、製品重量も増大するという欠点が
生じ、金属製のものに比して何らのメリットもなくなっ
てしまう。The resin connecting rod has a smaller number of manufacturing steps as compared with the metal connecting rod, and the weight and the cost can be reduced. However, the weld lines 201 and 202 are present at the portions receiving the maximum load. Therefore, it lacks reliability in terms of strength. If the thickness of the resin is increased in order to obtain sufficient strength, the material cost will increase, the molding cycle will become longer, and the weight of the product will increase. There is no merit.
【０００４】そこで、この発明は、樹脂製であることの
メリットを生かしつつ強度的にも十分な樹脂製連結ロッ
ド及びその製造方法を提供することを目的とする。Therefore, an object of the present invention is to provide a resin connecting rod and a method for manufacturing the same, which has sufficient strength while taking advantage of the fact that it is made of resin.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
め、この発明は、樹脂製のロッド状部分と、このロッド
状部分の両端部に一体形成した樹脂製の筒状部分と、そ
れぞれの筒状部分内に配設した弾性体とを備えた樹脂製
連結ロッドにおいて、ロッド状部分の長手方向に直交す
る方向にロッド状部分を断面にしたときの断面形状が左
右の断面積が略等しくなるように筒状部分の軸線に沿っ
た線で左右２つの断面部分に分けたときに左右非対称に
形成され、上記ロッド状部分の左右２つに分けた断面部
分の一方の断面形状は樹脂材料の流動抵抗が少なく他方
は大きい形状に形成されたものである。In order to achieve the above object, the present invention provides a resin rod-shaped portion and a resin tubular portion integrally formed at both ends of the rod-shaped portion. In a resin connecting rod provided with an elastic body disposed in a tubular portion, the cross-sectional shape when the rod-shaped portion is cross-section in a direction orthogonal to the longitudinal direction of the rod-shaped portion has substantially the same cross-sectional area on the left and right. Is formed asymmetrically when divided into two left and right cross-sections along a line along the axis of the tubular portion, and one cross-section of one of the left and right cross-sections of the rod-like portion is a resin material. Has a low flow resistance, and the other has a large shape.
【０００６】[0006]
【作用】この発明では、ロッド状部分の長手方向に直交
する方向の断面形状を左右ほぼ等面積となるように分け
たとき、一方の断面形状は樹脂材料の流動抵抗が少なく
他方は大きくなるような形状としたので、ウェルドライ
ンは筒状部分のロッド状部分の中心軸線の延長線上から
ずれる。換言すると筒状部分の最外側部位からずれ、最
大荷重を受ける部位に存在しないので強度的にも十分な
ものとなる。According to the present invention, when the cross-sectional shape of the rod-shaped portion in the direction orthogonal to the longitudinal direction is divided into substantially equal areas on the left and right, one cross-sectional shape has a small flow resistance of the resin material and the other has a large flow resistance. Since the shape of the weld line is such that the weld line is displaced from the extension of the central axis of the rod-shaped portion of the tubular portion. In other words, it is displaced from the outermost portion of the tubular portion and does not exist in the portion that receives the maximum load, so that the strength is sufficient.
【０００７】[0007]
【実施例】以下に、この発明の好適な実施例を図面を参
照にして説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.
【０００８】図１に示す実施例において、樹脂製のロッ
ド状部分１と、このロッド状部分１の両端部に一体形成
した樹脂製の筒状部分２と、それぞれの筒状部分内に配
設した弾性体３とを備えて樹脂製連結ロッドを構成して
ある。また、弾性体３の中央には内筒４が設けてある。
このような樹脂製連結ロッドを成形するとき、成形金型
の樹脂材料を射出する個所は矢印１０で示す個所とな
り、樹脂材料は、矢印１０で示す成形金型のゲートを通
じてキャビティ内に注入される。このゲート個所を示す
矢印１０の位置は円筒状部分２の最外側と中心を結ぶ線
から時計方向に約４５度の位置となる。図１において符
号１Ａはロッド１の中心軸線を示す。また符号５はウェ
ルドラインを示す。In the embodiment shown in FIG. 1, a rod-shaped portion 1 made of resin, a tubular portion 2 made of resin integrally formed at both ends of the rod-shaped portion 1, and disposed in each tubular portion. The connecting rod made of resin is configured by including the elastic body 3 described above. An inner cylinder 4 is provided at the center of the elastic body 3.
When molding such a resin connecting rod, the portion of the molding die for injecting the resin material is the portion shown by the arrow 10, and the resin material is injected into the cavity through the gate of the molding die shown by the arrow 10. . The position of the arrow 10 indicating this gate is a position of about 45 degrees clockwise from the line connecting the outermost side and the center of the cylindrical portion 2. In FIG. 1, reference numeral 1A indicates the central axis of the rod 1. Reference numeral 5 indicates a weld line.
【０００９】ロッド状部分１の長手方向に直交する断面
形状、すなわち図１のＢ−Ｂ線端面の形状は、図２や図
３に示すような形状となる。ロッド状部分１の長手方向
に直交する方向にロッド状部分１を断面にしたときの断
面形状は、左右の断面積が略等しくなるように筒状部分
２の軸線に沿った線２０で左右２つの断面部分１Ｘ，１
Ｙに分けたときに、左右非対称に形成されている。ま
た、断面部分１Ｘの断面形状は樹脂材料の流動抵抗が少
ない形状に形成され、断面部分１Ｙの断面形状は樹脂材
料の流動抵抗が大きい形状に形成されている。The cross-sectional shape of the rod-shaped portion 1 orthogonal to the longitudinal direction, that is, the shape of the end face of the line BB in FIG. 1 is as shown in FIGS. 2 and 3. The cross-sectional shape of the rod-shaped portion 1 when the rod-shaped portion 1 has a cross section in a direction orthogonal to the longitudinal direction of the rod-shaped portion 1 has a line 20 along the axis of the tubular portion 2 so that the cross-sectional areas on the left and right become substantially equal. One cross section 1X, 1
When divided into Y, it is formed asymmetrically. Further, the cross-sectional shape of the cross-sectional portion 1X is formed to have a shape in which the flow resistance of the resin material is small, and the cross-sectional shape of the cross-sectional portion 1Y is formed to have a large flow resistance of the resin material.
【００１０】図１における２つの内筒４の中心を通る線
で断面にした形状は、図４に示す通りであり、この図４
における図１のＢ−Ｂ線端面の形状は図２に示すもので
ある。The shape of the cross section taken along a line passing through the centers of the two inner cylinders 4 in FIG. 1 is as shown in FIG.
The shape of the end face of the line BB in FIG. 1 is as shown in FIG.
【００１１】以上説明した実施例では、線２０は中心軸
線１Ａに交わるようになっているが、この線２０が中心
軸線１Ａからずれた位置にある場合もある。また、線２
０で左右に分けられた断面部分１Ｘ，１Ｙにおいて、断
面部分１Ｘを成形するキャビティは断面部分１Ｙを成形
するキャビティの全周の長さよりも短い。この全周の長
さが長い断面部分１Ｙを成形するキャビティに樹脂材料
を注入すると、こちら側は流動抵抗が大きくなる。線２
０で左右２つに分けられる断面部分１Ｘ，１Ｙをそれぞ
れ成形するキャビティの形状は異なるが、両部分１Ｘ，
１Ｙの面積は略等しいので、成形されたロッド状部分１
は、両部分ともに十分な強度を有することとなり、片方
側が弱いということはなくなる。すなわち、仮に線２０
が中心軸線１Ａに交わるとした場合、左右いずれかの面
積が大きく他方が小さい場合には面積が小さい方が強度
的にも弱くなるおそれがある。In the embodiment described above, the line 20 intersects the central axis 1A, but the line 20 may be displaced from the central axis 1A. Also, line 2
In the cross-sectional portions 1X and 1Y divided into 0 on the left and right, the cavity forming the cross-sectional portion 1X is shorter than the entire circumference of the cavity forming the cross-sectional portion 1Y. When a resin material is injected into the cavity for molding the cross-section 1Y having a long entire circumference, the flow resistance increases on this side. Line 2
Although the shape of the cavity for molding the cross-sectional portions 1X and 1Y, which are divided into two on the left and right by 0, is different,
Since the area of 1Y is substantially equal, the molded rod-shaped portion 1
Has a sufficient strength in both parts, and one side is not weak. That is, if the line 20
Is crossed with the central axis 1A, the smaller area may be weaker in strength when the area on either side is large and the other is small.
【００１２】図５に示す他の実施例は、筒状部分２が３
つある樹脂製連結ロッドを示し、この実施例においても
ロッド状部分１の断面形状は図２や図３に示すと同様に
形成してある。この実施例における成形金型のゲートは
矢印１０で示す個所である。また、ウェルドライン５は
２つの筒状部分２の夫々の個所に生ずる。このウェルド
ライン５も筒状部分２の最外側からずれた位置にある。In another embodiment shown in FIG. 5, the tubular portion 2 has three
One resin-made connecting rod is shown, and in this embodiment also, the cross-sectional shape of the rod-shaped portion 1 is formed in the same manner as shown in FIGS. The gate of the molding die in this embodiment is a portion indicated by an arrow 10. In addition, the weld line 5 is formed at each of the two tubular portions 2. The weld line 5 is also displaced from the outermost side of the tubular portion 2.
【００１３】ゲート１０は従来と同様にロッド状部分１
の長手方向中央部分であっても良い。この場合には、図
１では下方の筒状部分２の最外側と内筒４とを結ぶ線か
ら反時計回りに略４５度の位置にも現われる。The gate 10 has a rod-shaped portion 1 as in the conventional case.
It may be the central portion in the longitudinal direction. In this case, in FIG. 1, it also appears at a position of about 45 degrees counterclockwise from the line connecting the outermost side of the lower tubular portion 2 and the inner tube 4.
【００１４】図６及び図７に示す別の実施例では、断面
形状が非対称断面形状を２つ用い、都合４つの等断面積
断面をつくり、それぞれの流動抵抗を設定してウェルド
ライン５をずらし、さらにウェルドライン５の形を真向
かいにぶつかり合うものではなく、斜めにぶつかり合う
ものとすることによって、ウェルドライン５自体の強度
アップやウェルドライン５の分散を図ることができる。In another embodiment shown in FIGS. 6 and 7, two asymmetric cross-sectional shapes are used, four equal cross-sectional areas are formed for convenience, and the flow resistance of each is set to shift the weld line 5. Further, by making the shapes of the weld lines 5 not directly hit each other but obliquely, the strength of the weld line 5 itself and the dispersion of the weld line 5 can be achieved.
【００１５】上述したいずれの樹脂製連結ロッドにおい
ても、予め弾性体３を配置した成形金型のキャビティ内
へ樹脂材料を射出してロッド状部分１と筒状部分２とを
成形する。筒状部分２の成形時には弾性体３が接着され
る。樹脂材料をキャビティ内へ射出するゲート（矢印１
０）をロッド状部分１の成形個所又は筒状部分２の成形
個所のロッド状部分１の成形個所の中心軸線１Ａの延長
線上からずれた個所に設け、かつロッド状部分１の成形
個所の長手方向に直交する方向の断面形状を左右を断面
積が略等しくなるように筒状部分２の軸線に沿った線２
０で左右２つの断面部分１Ｘ，１Ｙに分けたときに左右
非対称に形成するとともに左右のいずれか一方の断面形
状は樹脂材料の流動抵抗が少なく他方は大きい形状に形
成したキャビティに樹脂材料を射出成形する。成形され
たロッド状部分１の中心軸線１Ａの延長線上からずれた
筒状部分２の個所にウェルドライン５を形成する。In any of the resin connecting rods described above, the resin material is injected into the cavity of the molding die in which the elastic body 3 is arranged in advance to mold the rod-shaped portion 1 and the cylindrical portion 2. The elastic body 3 is bonded when the tubular portion 2 is molded. Gate for injecting resin material into the cavity (arrow 1
0) is provided at a position deviated from the extension line of the central axis 1A of the molding part of the rod-shaped part 1 of the molding part of the rod-shaped part 1 or the molding part of the tubular part 2 and the length of the molding part of the rod-shaped part 1. The cross-sectional shape in the direction orthogonal to the direction is a line 2 along the axis of the tubular portion 2 so that the cross-sectional areas are substantially equal on the left and right
When it is divided into two left and right cross-section portions 1X and 1Y at 0, the left and right cross-sections are formed asymmetrically, and one of the left and right cross-section shapes has a small flow resistance of the resin material and the other has a large shape, and the resin material is injected into the cavity Mold. A weld line 5 is formed at a portion of the cylindrical portion 2 which is deviated from the extension of the central axis 1A of the molded rod-shaped portion 1.
【００１６】[0016]
【発明の効果】以上説明したように、この発明によれ
ば、金属製連結ロッドよりも安価で軽く、しかも強度的
にも十分なものとなる。また、この発明によれば、ゲー
トやウェルドラインを理想の部分に設定できるので、信
頼性にも優れた樹脂製連結ロッドとなり、軽量化ならび
にコストダウンに寄与し得る。As described above, according to the present invention, it is cheaper and lighter than the metal connecting rod and has sufficient strength. Further, according to the present invention, since the gate and the weld line can be set in the ideal portion, the resin connecting rod is excellent in reliability, which can contribute to weight reduction and cost reduction.
【図１】この発明の好適な実施例を示す平面図。FIG. 1 is a plan view showing a preferred embodiment of the present invention.
【図２】図１のＢ−Ｂ線端面図。2 is an end view taken along the line BB of FIG.
【図３】図２と同様の他の断面形状を示す図。FIG. 3 is a view showing another sectional shape similar to that of FIG.
【図４】図１の中央縦断面図。FIG. 4 is a central longitudinal sectional view of FIG.
【図５】他の実施例を示す斜視図。FIG. 5 is a perspective view showing another embodiment.
【図６】さらに別の実施例を示す一部分の斜視図。FIG. 6 is a partial perspective view showing still another embodiment.
【図７】図６に示すロッドの断面図。7 is a cross-sectional view of the rod shown in FIG.
【図８】従来例を示す平面図。FIG. 8 is a plan view showing a conventional example.
【図９】図８のＡ−Ａ線端面図。9 is an end view taken along the line AA of FIG.
１ ロッド状部分 １Ａ 中心軸線 ２ 筒状部分 ３ 弾性体 ５ ウェルドライン ２０ 断面部分１Ｘ，１Ｙを左右にほぼ断面積が等しく
なるように分ける線1 Rod-shaped portion 1A Central axis 2 Cylindrical portion 3 Elastic body 5 Weld line 20 Line that divides the cross-sectional portions 1X and 1Y so that their cross-sectional areas are substantially equal to each other
Claims (2)
部分の両端部に一体形成した樹脂製の筒状部分と、それ
ぞれの筒状部分内に配設した弾性体とを備えた樹脂製連
結ロッドにおいて、 ロッド状部分の長手方向に直交する方向にロッド状部分
を断面にしたときの断面形状が左右の断面積が略等しく
なるように筒状部分の軸線に沿った線で左右２つの断面
部分に分けたときに左右非対称に形成され、 上記ロッド状部分の左右２つに分けた断面部分の一方の
断面形状は樹脂材料の流動抵抗が少なく他方は大きい形
状に形成されたことを特徴とする樹脂製連結ロッド。1. A resin-made rod-shaped portion, a resin-made tubular portion integrally formed at both ends of the rod-shaped portion, and an elastic body disposed in each tubular portion. In the connecting rod, when the rod-shaped portion has a cross section in a direction orthogonal to the longitudinal direction of the rod-shaped portion, the left and right sides are two lines along the axis of the tubular portion so that the cross-sectional shapes of the left and right are substantially equal. When divided into cross-sections, the cross-section is formed asymmetrically, and one of the cross-sections of the rod-like part divided into the left and right has a flow resistance of the resin material that is small and the other is large. Resin connecting rod.
ティ内へ樹脂材料を射出してロッド状部分と筒状部分と
を成形し、筒状部分はロッド状部分の両端部に位置して
弾性体を囲繞するように成形する樹脂製連結ロッドの製
造方法において、 樹脂材料をキャビティ内へ射出するゲートをロッド状部
分の成形個所又は筒状部分成形個所のロッド状部分成形
個所の中心軸線の延長線上からずれた個所に設け、かつ
ロッド状部分成形個所の長手方向に直交する方向の断面
形状を左右の断面積が略等しくなるように筒状部分の軸
線に沿った線で左右２つの断面部分に分けたときに左右
非対称に形成するとともに、左右のいずれか一方の断面
形状は樹脂材料の流動抵抗が少なく他方は大きい形状に
形成したキャビティに樹脂材料を射出成形し、 成形されたロッド状部分の中心軸線の延長線上からずれ
た筒状部分の個所にウェルドラインを形成したことを特
徴とする樹脂製連結ロッドの製造方法。2. A rod-shaped portion and a tubular portion are molded by injecting a resin material into a cavity of a molding die in which an elastic body is arranged in advance, and the tubular portion is positioned at both ends of the rod-shaped portion. In a method for manufacturing a resin-made connecting rod that is formed so as to surround an elastic body, a gate for injecting a resin material into a cavity is provided with a central axis of a rod-shaped portion or a rod-shaped portion of a rod-shaped portion. The cross section of the rod-shaped part-molding part in a direction orthogonal to the longitudinal direction is provided at a position deviated from the extension line, and two left and right cross-sections are formed along a line along the axis of the tubular part so that the cross-sectional areas on the left and right are substantially equal. When divided into parts, it is formed asymmetrically, and one of the left and right cross-sectional shapes is molded by injection molding the resin material into a cavity formed in a shape in which the flow resistance of the resin material is small and the other is large. The method for fabricating a resin-made connecting rod, characterized in that the formation of the weld line at a location of the cylindrical portion displaced from the extended line of the center axis of the rod-like portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35284393A JP3653106B2 (en) | 1993-12-29 | 1993-12-29 | Manufacturing method of resin connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35284393A JP3653106B2 (en) | 1993-12-29 | 1993-12-29 | Manufacturing method of resin connecting rod |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002006553A Division JP3682261B2 (en) | 2002-01-15 | 2002-01-15 | Resin connecting rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07197927A true JPH07197927A (en) | 1995-08-01 |
| JP3653106B2 JP3653106B2 (en) | 2005-05-25 |
Family
ID=18426826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35284393A Expired - Lifetime JP3653106B2 (en) | 1993-12-29 | 1993-12-29 | Manufacturing method of resin connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3653106B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113058A (en) * | 1997-04-21 | 2000-09-05 | Bridgestone Corporation | Coupling device |
| US7350778B2 (en) | 2004-03-19 | 2008-04-01 | Tokai Rubber Industries, Ltd. | Torque rod |
| JP2009115109A (en) * | 2007-11-01 | 2009-05-28 | Toyo Tire & Rubber Co Ltd | Vibration isolating connecting rod |
| JP2009115108A (en) * | 2007-11-01 | 2009-05-28 | Toyo Tire & Rubber Co Ltd | Vibration isolating connecting rod |
| JP2015036576A (en) * | 2013-08-14 | 2015-02-23 | 山下ゴム株式会社 | Resin torque rod |
-
1993
- 1993-12-29 JP JP35284393A patent/JP3653106B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113058A (en) * | 1997-04-21 | 2000-09-05 | Bridgestone Corporation | Coupling device |
| US7350778B2 (en) | 2004-03-19 | 2008-04-01 | Tokai Rubber Industries, Ltd. | Torque rod |
| JP2009115109A (en) * | 2007-11-01 | 2009-05-28 | Toyo Tire & Rubber Co Ltd | Vibration isolating connecting rod |
| JP2009115108A (en) * | 2007-11-01 | 2009-05-28 | Toyo Tire & Rubber Co Ltd | Vibration isolating connecting rod |
| JP2015036576A (en) * | 2013-08-14 | 2015-02-23 | 山下ゴム株式会社 | Resin torque rod |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3653106B2 (en) | 2005-05-25 |
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