JPH07113458A - Phenol resin gear and manufacture thereof - Google Patents
Phenol resin gear and manufacture thereofInfo
- Publication number
- JPH07113458A JPH07113458A JP5260498A JP26049893A JPH07113458A JP H07113458 A JPH07113458 A JP H07113458A JP 5260498 A JP5260498 A JP 5260498A JP 26049893 A JP26049893 A JP 26049893A JP H07113458 A JPH07113458 A JP H07113458A
- Authority
- JP
- Japan
- Prior art keywords
- aromatic polyamide
- phenol resin
- weight
- polyamide fiber
- woven fabric
- 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
- Gears, Cams (AREA)
- Moulding By Coating Moulds (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、歯部構成体の補強基材
として、メタ系芳香族ポリアミド繊維とパラ系芳香族ポ
リアミド繊維を混合・複合したアラミド不織布を用いた
フェノール樹脂歯車およびその製造法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a phenol resin gear using an aramid non-woven fabric obtained by mixing and compounding a meta-aromatic polyamide fiber and a para-aromatic polyamide fiber as a reinforcing base material for a tooth structure and its production. Concerning the law.
【0002】[0002]
【従来の技術】樹脂歯車は噛み合い騒音が低く、耐摩耗
性に優れ、軽量で回転慣性力が小さいなどの多くの利点
をもって多用されている。樹脂歯車には負荷耐力を増す
ために有機質や無機質の補強材を樹脂中に充填してい
る。これらは、粒状物であったり、単繊維や織布基材で
ある。例えば、歯部を構成する樹脂中にガラス繊維を充
填すると、強度と耐熱性の向上を図ることができる。し
かし、この場合、噛み合わせる相手歯車の歯面を著しく
摩耗させやすいので、大きな歯面荷重を負担しなければ
ならない用途には適さない。そこで従来は、綿布やメタ
系芳香族ポリアミド織布が補強基材として多用されてい
る。綿布やメタ系芳香族ポリアミド織布にフェノール樹
脂を含浸し、加熱加圧成形した成形品に歯切り加工を施
した歯車は、耐摩耗性に優れ、歯車として必要な性能を
平均的に備えている。2. Description of the Related Art Resin gears are widely used with many advantages such as low meshing noise, excellent wear resistance, light weight and small rotational inertia. The resin gear is filled with an organic or inorganic reinforcing material in the resin in order to increase load bearing capacity. These are granular materials, monofilaments or woven fabric substrates. For example, when glass fibers are filled in the resin forming the tooth portion, strength and heat resistance can be improved. However, in this case, the tooth surfaces of the mating gears that are meshed with each other are likely to be significantly worn, and are not suitable for applications in which a large tooth surface load must be borne. Therefore, conventionally, a cotton cloth or a meta-aromatic polyamide woven cloth is often used as a reinforcing base material. Gears made by impregnating cotton cloth or meta-aromatic polyamide woven cloth with phenolic resin and heat-pressing the molded product and subjecting it to gear cutting have excellent wear resistance and, on average, have the necessary performance as gears. There is.
【0003】[0003]
【発明が解決しようとする課題】しかし、綿布やメタ系
芳香族ポリアミド織布を補強基材として歯部を構成した
フェノール樹脂歯車は、さらに高い強度を望もうとして
も、綿布やメタ系芳香族ポリアミド織布自体の特性上困
難である。自動車エンジン用のタイミングギヤのように
100〜130℃の高温の潤滑油中で使用する場合に
は、耐久性が不足する。一方、パラ系芳香族ポリアミド
織布を補強材として歯部を構成したフェノール樹脂歯車
は、高い強度を得られるが、加工性が悪いことから望ま
しいものではない。本発明が解決しようとする課題は、
歯部構成体の補強基材を選定して、製造時の加工性、お
よび高温における耐久性に優れたフェノール樹脂歯車を
提供することである。However, a phenol resin gear having teeth formed by using a cotton cloth or a meta-aromatic polyamide woven cloth as a reinforcing base material has a drawback that the cotton cloth or the meta-aromatic cloth is used even if the higher strength is desired. It is difficult due to the characteristics of the polyamide woven fabric itself. When it is used in a high temperature lubricating oil of 100 to 130 ° C. such as a timing gear for an automobile engine, the durability is insufficient. On the other hand, a phenol resin gear having a tooth portion using a para-aromatic polyamide woven fabric as a reinforcing material can obtain high strength, but is not desirable because it has poor workability. The problem to be solved by the present invention is
It is intended to provide a phenol resin gear having excellent workability at the time of manufacturing and durability at high temperature by selecting a reinforcing base material for a tooth structure.
【0004】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本発明に係るフェノール樹脂歯車は、歯部構成体の
補強基材が、メタ系芳香族ポリアミド繊維30〜95重
量%とパラ系芳香族ポリアミド繊維70〜5重量%を混
合・複合したアラミド不織布であることを特徴とする。
前記不織布は、例えば、長さ51mmにカットしたパラ
系、メタ系の原綿を混合し解離分散・積層・ニードル加
工した不織布である。また、本発明に係るフェノール樹
脂歯車の製造法は、基本的には特公昭46−29683
号公報に開示されているような方法によるが、次の
(1)〜(5)の工程を経るものである。 (1)メタ系芳香族ポリアミド繊維30〜95重量%と
パラ系芳香族ポリアミド繊維70〜5重量%を混合・複
合したアラミド不織布にフェノール樹脂を含浸し乾燥す
る工程 (2)前記樹脂を含浸乾燥したアラミド不織布を所定形
状に裁断する工程 (3)前記裁断したアラミド不織布を加熱しながら端縁
より巻き込んで棒状となし、さらに丸めて円環状の歯部
構成体とする工程 (4)前記円環状の歯部構成体を金型に装填し、歯部構
成体の内側に歯車のウェブならびにボスを形成する成形
材料およびブッシュを配置して加熱加圧成形する工程 (5)前記工程を経た成形品の前記歯部構成体部分に機
械加工により歯を形成する工程In order to solve the above-mentioned problems, in the phenol resin gear according to the present invention, the reinforcing base material of the tooth structure is 30 to 95 wt% of meta-aromatic polyamide fiber and para-based material. It is characterized by being an aramid nonwoven fabric in which 70 to 5% by weight of aromatic polyamide fibers are mixed and composited.
The non-woven fabric is, for example, a non-woven fabric obtained by mixing para-type and meta-type raw cotton cut to a length of 51 mm, dissociating, dispersing, laminating and needle processing. Further, the method for producing a phenol resin gear according to the present invention is basically the same as that of Japanese Patent Publication No. 46-29683.
According to the method disclosed in the publication, the following steps (1) to (5) are performed. (1) A step of impregnating and drying a phenolic resin in an aramid nonwoven fabric in which 30 to 95 wt% of meta-aromatic polyamide fiber and 70 to 5 wt% of para-aromatic polyamide fiber are mixed and composited (2) Impregnation and drying of the resin Cutting the aramid non-woven fabric into a predetermined shape (3) winding the cut aramid non-woven fabric from the edge while heating to form a rod shape, and further rolling it into an annular tooth structure (4) the annular shape (5) A step of loading the tooth part structure of 1. into a mold, arranging a molding material and a bush for forming a gear web and a boss inside the tooth part structure and performing heat press molding (5) Of forming teeth on the tooth part structure part by machining
【0005】[0005]
【作用】パラ系芳香族ポリアミド不織布は、綿と比べた
場合極めて強度の大きい基材であるが、一般に加工性は
良くない。メタ系芳香族ポリアミド不織布は、強度はパ
ラ系に比べると劣るが、その分、加工性に優れる。そこ
で、メタ系芳香族ポリアミド繊維とパラ系芳香族ポリア
ミド繊維を混合・複合したアラミド不織布を用いること
により、そして、メタ系芳香族ポリアミド繊維とパラ系
芳香族ポリアミド繊維の割合を上記のとおりとすること
により、加工性と強度のバランスに優れたフェノール樹
脂歯車を得ることができる。本発明では、織布ではなく
不織布を用いているが、織布と不織布の加工性を比較す
ると不織布の方が優れる。また、不織布は織布より樹脂
含浸性に優れ、織布のような基材方向による強度バラツ
キがでにくい。The para-aromatic polyamide non-woven fabric is a base material which has extremely high strength as compared with cotton, but generally has poor workability. The strength of the meta-aromatic polyamide nonwoven fabric is inferior to that of the para-type, but the processability is excellent. Therefore, by using an aramid nonwoven fabric in which meta-aromatic polyamide fibers and para-aromatic polyamide fibers are mixed and composited, and the ratio of meta-aromatic polyamide fibers and para-aromatic polyamide fibers is as described above. As a result, a phenol resin gear having an excellent balance between workability and strength can be obtained. In the present invention, a non-woven fabric is used instead of a woven fabric, but the non-woven fabric is superior when the workability of the woven fabric is compared with that of the non-woven fabric. Further, the non-woven fabric is superior in resin impregnation property to the woven fabric, and is less likely to have strength variations depending on the direction of the base material such as the woven fabric.
【0006】[0006]
実施例1 ポリメタフェニレンイソフタルアミド繊維の原綿(帝人
製「コーネックス」,繊維径:2de,繊維長51mm)
とポリパラフェニレンテレフタルアミド繊維の原綿(帝
人製「テクノーラ・タイプT330」,繊維径1.5d
e,繊維長51mm)を重量比で95/5で混合・複合し
た不織布(単位重量130g/m2)にフェノール樹脂
を樹脂量57重量%で含浸乾燥しプリプレグ1とした。
前記プリプレグ1を所定形状に裁断し、図1に示すよう
に、熱盤上で加熱して軟化させた後棒状に巻き込んで帯
状にし、さらに丸めて円環状の歯部構成体2とした。ま
た、図2に示すように、フェノール樹脂含浸メタ系芳香
族ポリアミド織布基材とフェノール樹脂含浸綿布基材を
それぞれ5mm角に、また、フェノール樹脂含浸ガラス織
布基材を10mm角に裁断して、チップ片3とした成形材
料を用意した。この成形材料を仮成形金型4に投入10
0℃で円環状のウェブ構成体5を仮成形した。次に、図
3に示すように、金型6の中央部に金属製ブッシュ7を
配置し、その周囲に上記の円環状のウェブ構成体5を、
最外周に歯部構成体2を配置して180℃で加熱加圧成
形を行い三者を一体化した。歯は、成形後、歯部構成体
の部分に機械切削により形成し、樹脂歯車とした。その
特性を表1に示す。Example 1 Raw cotton of polymetaphenylene isophthalamide fiber ("Conex" manufactured by Teijin, fiber diameter: 2 de, fiber length 51 mm)
And polyparaphenylene terephthalamide fiber raw cotton ("Technora Type T330" manufactured by Teijin, fiber diameter 1.5d
e, a fiber length of 51 mm) was mixed and composited at a weight ratio of 95/5, and a non-woven fabric (unit weight: 130 g / m 2 ) was impregnated with a phenol resin at a resin amount of 57% by weight and dried to obtain a prepreg 1.
As shown in FIG. 1, the prepreg 1 was cut into a predetermined shape, heated on a heating plate to be softened, and then wound into a rod shape to form a belt shape, which was further rounded to form an annular tooth portion structure 2. Further, as shown in FIG. 2, a phenol resin-impregnated meta-aromatic polyamide woven fabric substrate and a phenol resin-impregnated cotton fabric substrate were each cut into 5 mm squares, and a phenol resin-impregnated glass woven fabric substrate was cut into 10 mm squares. Then, a molding material for the chip piece 3 was prepared. This molding material is put into the temporary molding die 4 10
An annular web structure 5 was preliminarily molded at 0 ° C. Next, as shown in FIG. 3, a metal bush 7 is arranged in the center of the mold 6, and the annular web structure 5 is provided around the bush 7.
The tooth structure 2 was arranged on the outermost periphery, and heat and pressure molding was performed at 180 ° C. to integrate the three members. After molding, the tooth was formed by mechanical cutting in the tooth structure forming portion to obtain a resin gear. The characteristics are shown in Table 1.
【0007】実施例2 実施例1において、ポリメタフェニレンイソフタルアミ
ド繊維とポリパラフェニレンテレフタルアミド繊維の混
合割合を重量比で80/20とした。以下、実施例1と
同様にして樹脂歯車とした。その特性を表1に示す。Example 2 In Example 1, the mixing ratio of the polymetaphenylene isophthalamide fiber and the polyparaphenylene terephthalamide fiber was 80/20 by weight. Hereinafter, a resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0008】実施例3 実施例1において、ポリメタフェニレンイソフタルアミ
ド繊維とポリパラフェニレンテレフタルアミド繊維の混
合割合を重量比で70/30とした。以下、実施例1と
同様にして樹脂歯車とした。その特性を表1に示す。Example 3 In Example 1, the mixing ratio of the polymetaphenylene isophthalamide fiber and the polyparaphenylene terephthalamide fiber was 70/30 by weight. Hereinafter, a resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0009】実施例4 実施例1において、ポリメタフェニレンイソフタルアミ
ド繊維とポリパラフェニレンテレフタルアミド繊維の混
合割合を重量比で50/50とした。以下、実施例1と
同様にして樹脂歯車とした。その特性を表1に示す。Example 4 In Example 1, the mixing ratio of the polymetaphenylene isophthalamide fiber and the polyparaphenylene terephthalamide fiber was 50/50 by weight. Hereinafter, a resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0010】実施例5 実施例1において、ポリメタフェニレンイソフタルアミ
ド繊維とポリパラフェニレンテレフタルアミド繊維の混
合割合を重量比で30/70とした。以下、実施例1と
同様にして樹脂歯車とした。その特性を表1に示す。Example 5 In Example 1, the mixing ratio of the polymetaphenylene isophthalamide fiber and the polyparaphenylene terephthalamide fiber was 30/70 by weight. Hereinafter, a resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0011】比較例1 実施例1において、ポリメタフェニレンイソフタルアミ
ド繊維とポリパラフェニレンテレフタルアミド繊維の混
合割合を重量比で10/90とした。以下、実施例1と
同様にして樹脂歯車とした。その特性を表1に示す。Comparative Example 1 In Example 1, the mixing ratio of the polymetaphenylene isophthalamide fiber and the polyparaphenylene terephthalamide fiber was 10/90 by weight. Hereinafter, a resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0012】比較例2 ポリメタフェニレンイソフタルアミド繊維の原綿(帝人
製「コーネックス」,繊維径:2de,繊維長51mm)
とポリパラフェニレンテレフタルアミド繊維の原綿(帝
人製「テクノーラ・タイプT330」,繊維径1.5d
e,繊維長51mm)を重量比で50/50で混合・紡績
した糸で織った織布にフェノール樹脂を樹脂量57重量
%で含浸乾燥しプリプレグ1とした。上記プリプレグ1
を歯部構成体2に使用し、以下、実施例1と同様にして
樹脂歯車とした。その特性を表1に示す。Comparative Example 2 Polymethaphenylene isophthalamide fiber raw cotton ("Conex" manufactured by Teijin Ltd., fiber diameter: 2 de, fiber length 51 mm)
And polyparaphenylene terephthalamide fiber raw cotton ("Technora Type T330" manufactured by Teijin, fiber diameter 1.5d
e, fiber length 51 mm) was mixed and spun at a weight ratio of 50/50, and a woven fabric woven with yarn was impregnated with a phenol resin at a resin amount of 57% by weight and dried to obtain prepreg 1. Prepreg 1 above
Was used for the tooth structure 2, and a resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0013】従来例 ポリメタフェニレンイソフタルアミド繊維の原綿(帝人
製「コーネックス」,繊維径:2de)の織布(糸太
さ:綿糸規格20番糸,インチ当たり打ち込み本数:タ
テ57本,ヨコ57本)にフェノール樹脂を樹脂量57
重量%で含浸乾燥しプリプレグ1とした。上記プリプレ
グ1を歯部構成体2に使用し、以下、実施例1と同様に
して樹脂歯車とした。その特性を表1に示す。Conventional example Polymetaphenylene isophthalamide fiber raw cotton (Teijin "Conex", fiber diameter: 2 de) woven fabric (thread thickness: cotton thread standard 20 threads, number of threads per inch: 57 vertical, horizontal) 57 pieces) with phenol resin
It was impregnated and dried at a weight percentage of prepreg 1. The above prepreg 1 was used for the tooth portion structure 2 and the resin gear was prepared in the same manner as in Example 1. The characteristics are shown in Table 1.
【0014】表1において、実装耐久時間は、実施例、
従来例および比較例の樹脂歯車を自動車エンジンのカム
ギヤ加速テスト(回転数:3000rpm,樹脂歯車を
浸漬する油温130℃,歯元負荷応力18Kg/mm2)に
供し、耐久時間を測定した。また、歯切り加工性は、各
樹脂歯車の歯切り加工の際、歯の加工状態を目視で確認
した。In Table 1, the mounting durability time is shown in
The resin gears of the conventional example and the comparative example were subjected to a cam gear acceleration test of an automobile engine (rotational speed: 3000 rpm, oil temperature at which the resin gear was immersed 130 ° C., root load stress 18 kg / mm 2 ) and the durability time was measured. In addition, the gear cutting workability was confirmed by visually checking the working state of the teeth during the gear cutting work of each resin gear.
【0015】[0015]
【表1】 [Table 1]
【0016】[0016]
【発明の効果】上述のように、本発明に係るフェノール
樹脂歯車は、歯部を構成する補強基材を、メタ系芳香族
ポリアミド繊維30〜95重量%とパラ系芳香族ポリア
ミド繊維70〜5重量%を混合・複合したアラミド不織
布とすることにより、加工性と高温における耐久性に優
れた樹脂歯車とすることができる。メタ系芳香族ポリア
ミド繊維50〜80重量%とパラ系芳香族ポリアミド繊
維50〜20重量%の割合としたときは、さらに加工性
と耐久性のバランスが優れたものとなる。As described above, in the phenol resin gear according to the present invention, the reinforcing base material constituting the tooth portion is composed of 30 to 95% by weight of the meta aromatic polyamide fiber and 70 to 5 of the para aromatic polyamide fiber. By using the aramid non-woven fabric in which the weight% is mixed and composited, a resin gear having excellent processability and high temperature durability can be obtained. When the ratio of the meta-aromatic polyamide fiber is 50 to 80% by weight and the ratio of the para-aromatic polyamide fiber is 50 to 20% by weight, the balance between processability and durability is further excellent.
【図1】フェノール樹脂歯車の製造において、歯部構成
体を用意する工程を示す説明図である。FIG. 1 is an explanatory view showing a step of preparing a tooth structure in the production of a phenol resin gear.
【図2】フェノール樹脂歯車の製造において、ウェブ構
成体を用意する工程を示す説明図である。FIG. 2 is an explanatory diagram showing a step of preparing a web structure in the production of a phenol resin gear.
【図3】フェノール樹脂歯車を成形する状態を示す断面
説明図である。FIG. 3 is a cross-sectional explanatory view showing a state where a phenol resin gear is molded.
1はプリプレグ 2は歯部構成体 3はチップ片 4は仮成形金型 5はウェブ構成体 6は金型 7は金属製ブッシュ 1 is a prepreg 2 is a tooth part structure 3 is a tip piece 4 is a temporary forming die 5 is a web forming body 6 is a die 7 is a metal bush
Claims (4)
加圧成形した成形品を歯部構成体としたフェノール樹脂
歯車において、 補強基材が、メタ系芳香族ポリアミド繊維30〜95重
量%とパラ系芳香族ポリアミド繊維70〜5重量%を混
合・複合したアラミド不織布であることを特徴とするフ
ェノール樹脂歯車。1. A phenol resin gear having a tooth part formed of a molded product obtained by heat-pressing a reinforcing base material impregnated with a phenol resin, wherein the reinforcing base material is 30 to 95% by weight of a meta-aromatic polyamide fiber. A phenol resin gear, which is an aramid non-woven fabric in which 70 to 5% by weight of para-aromatic polyamide fiber is mixed and composited.
50〜80重量%とパラ系芳香族ポリアミド繊維50〜
20重量%を混合・複合したアラミド不織布であること
を特徴とする請求項1記載のフェノール樹脂歯車。2. The reinforcing base material comprises 50 to 80% by weight of meta-aromatic polyamide fiber and 50 to 50 para-aromatic polyamide fiber.
The phenol resin gear according to claim 1, which is an aramid nonwoven fabric in which 20% by weight is mixed and composited.
徴とするフェノール樹脂歯車の製造法。 (1)メタ系芳香族ポリアミド繊維30〜95重量%と
パラ系芳香族ポリアミド繊維70〜5重量%を混合・複
合したアラミド不織布にフェノール樹脂を含浸し乾燥す
る工程 (2)前記樹脂を含浸乾燥したアラミド不織布を所定形
状に裁断する工程 (3)前記裁断したアラミド不織布を加熱しながら端縁
より巻き込んで棒状となし、さらに丸めて円環状の歯部
構成体とする工程 (4)前記円環状の歯部構成体を金型に装填し、歯部構
成体の内側に歯車のウェブならびにボスを形成する成形
材料およびブッシュを配置して加熱加圧成形する工程 (5)前記工程を経た成形品の前記歯部構成体部分に機
械加工により歯を形成する工程3. A method for producing a phenol resin gear, which comprises the following steps (1) to (5). (1) Step of impregnating and drying a phenolic resin in an aramid nonwoven fabric in which 30 to 95% by weight of meta-aromatic polyamide fiber and 70 to 5% by weight of para-aromatic polyamide fiber are mixed and composited (2) Impregnation and drying of the resin Cutting the aramid non-woven fabric into a predetermined shape (3) winding the cut aramid non-woven fabric from the edge while heating to form a rod shape, and further rolling it into an annular tooth structure (4) the annular shape (5) A step of loading the tooth part constituting body of No. 3 into a mold, arranging a molding material and a bush for forming a gear web and a boss inside the tooth part constituting body, and performing heat press molding (5) Of forming teeth on the tooth part structure part by machining
維50〜80重量%とパラ系芳香族ポリアミド繊維50
〜20重量%を混合・複合したアラミド不織布にフェノ
ール樹脂を含浸し乾燥する工程である請求項3記載のフ
ェノール樹脂歯車の製造法。4. In the step (1), 50 to 80% by weight of a meta-aromatic polyamide fiber and a para-aromatic polyamide fiber 50 are used.
The method for producing a phenol resin gear according to claim 3, which is a step of impregnating an aramid non-woven fabric, which is mixed and composited with 20 to 20% by weight, with a phenol resin and then drying.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5260498A JP2850722B2 (en) | 1993-10-19 | 1993-10-19 | Phenolic resin gear and its manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5260498A JP2850722B2 (en) | 1993-10-19 | 1993-10-19 | Phenolic resin gear and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07113458A true JPH07113458A (en) | 1995-05-02 |
JP2850722B2 JP2850722B2 (en) | 1999-01-27 |
Family
ID=17348807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5260498A Expired - Fee Related JP2850722B2 (en) | 1993-10-19 | 1993-10-19 | Phenolic resin gear and its manufacturing method |
Country Status (1)
Country | Link |
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JP (1) | JP2850722B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1145830A2 (en) * | 2000-04-12 | 2001-10-17 | Shin-Kobe Electric Machinery Co. Ltd | Gear made of fiber reinforced resin and method for manufacturing same |
JP2003014086A (en) * | 2001-06-27 | 2003-01-15 | Teijin Ltd | Fiber reinforced plastics gear and its manufacturing method |
JP2011033200A (en) * | 2010-11-16 | 2011-02-17 | Shin Kobe Electric Mach Co Ltd | Method of manufacturing resin gear |
JP2012031891A (en) * | 2010-07-29 | 2012-02-16 | Shin Kobe Electric Mach Co Ltd | Resin gear |
-
1993
- 1993-10-19 JP JP5260498A patent/JP2850722B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1145830A2 (en) * | 2000-04-12 | 2001-10-17 | Shin-Kobe Electric Machinery Co. Ltd | Gear made of fiber reinforced resin and method for manufacturing same |
EP1145830A3 (en) * | 2000-04-12 | 2002-09-18 | Shin-Kobe Electric Machinery Co. Ltd | Gear made of fiber reinforced resin and method for manufacturing same |
US6591708B2 (en) | 2000-04-12 | 2003-07-15 | Shin-Kobe Electric Machinery Co., Ltd. | Gear made of fiber reinforced resin and method for manufacturing same |
JP2003014086A (en) * | 2001-06-27 | 2003-01-15 | Teijin Ltd | Fiber reinforced plastics gear and its manufacturing method |
JP2012031891A (en) * | 2010-07-29 | 2012-02-16 | Shin Kobe Electric Mach Co Ltd | Resin gear |
JP2011033200A (en) * | 2010-11-16 | 2011-02-17 | Shin Kobe Electric Mach Co Ltd | Method of manufacturing resin gear |
Also Published As
Publication number | Publication date |
---|---|
JP2850722B2 (en) | 1999-01-27 |
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