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JPH0711966A - Rotor for rotating machine - Google Patents

Rotor for rotating machine

Info

Publication number
JPH0711966A
JPH0711966A JP15059493A JP15059493A JPH0711966A JP H0711966 A JPH0711966 A JP H0711966A JP 15059493 A JP15059493 A JP 15059493A JP 15059493 A JP15059493 A JP 15059493A JP H0711966 A JPH0711966 A JP H0711966A
Authority
JP
Japan
Prior art keywords
shaft
rotor
steel
aluminum
shaft end
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
Application number
JP15059493A
Other languages
Japanese (ja)
Inventor
Yasuo Tanaka
保雄 田中
Shigeru Takabe
茂 高部
Takeshi Goto
剛 後藤
Muneyasu Okimoto
統康 沖本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co Ltd
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ishikawajima Harima Heavy Industries Co Ltd, Mazda Motor Corp filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP15059493A priority Critical patent/JPH0711966A/en
Publication of JPH0711966A publication Critical patent/JPH0711966A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)
  • Supercharger (AREA)

Abstract

PURPOSE:To improve strength through protection of a weld part by means of a rotor and to prevent breakage of the weld by a method wherein the shaft end parts of shafts made of steel are securely welded on the same axis to the two ends of a shaft and the central hole of a rotor is shrinkage-fitted throughout the outer periphery thereof CONSTITUTION:The length of a shaft 11 is set to a value shorter than the length L of a rotor 1 and the diameter of the shaft 11 is set to a value slightly larger than that of the central hole 2 of the rotor 1. The rotor 1 is formed of, for example, aluminum and the shaft 11 is formed of metal, for example, SUS304, having approximately the same thermal expansion coefficient as that of the rotor 1. In which case, the shaft end parts 12 of shafts 13 made of steel having the shaft end parts 12 having the same diameter as that of the shaft 11 are fixed on the same axis to the two ends 14 of the shaft 11 by means of welds 15. The central hole 2 of the rotor 1 is shrinkage-fitted throughout the outer peripheries of the two ends 14 of the shaft 11 and the shaft end parts 12 of the shafts 13 made of steel and the weld 15 part is contained in a central hole 12. Consecutively, the shaft 13 made of steel is rotatably supported by means of a bearing 16 and the bearing 16 is fixed by means of a nut 17.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、リショルム型過給機等
のように高速回転する回転機械のロータに関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor of a rotating machine such as a Risholm type supercharger which rotates at a high speed.

【0002】[0002]

【従来の技術】リショルム型過給機は、外周に螺旋状の
突条を設けた雄ロータと、外周に螺旋状の凹溝を設けた
雌ロータとを噛合せ、雄ロータと雌ロータとを高速回転
させて空気を軸方向に圧縮している。
2. Description of the Related Art A Risholum supercharger has a male rotor and a female rotor that mesh with a male rotor having a spiral projection on the outer periphery and a female rotor having a spiral groove on the outer periphery. It rotates at high speed to compress air in the axial direction.

【0003】このような高速で回転する回転機械のロー
タは、軽量にする必要があるため、通常はアルミニウム
で製作される。しかしながらロータを支持して高速の回
転を伝達する軸は、強度上、鋼材で製作する必要があ
る。
The rotor of such a rotating machine that rotates at a high speed is usually made of aluminum because it needs to be lightweight. However, the shaft that supports the rotor and transmits high-speed rotation needs to be made of steel in terms of strength.

【0004】このような従来の回転機械のロータを図2
の断面図によって説明すると、ロータ1の中心孔2には
軸3が焼嵌めによって、固定されている。軸3の長さは
ロータ1の長さLよりも若干長い長さになっていて、軸
3の両端4,4はロータ1の両端5,5の外方に突出し
ている。そしてロータ1と軸3とは軽量化を図るため、
いずれもアルミニウムで製作されている。
FIG. 2 shows a rotor of such a conventional rotary machine.
The shaft 3 is fixed to the center hole 2 of the rotor 1 by shrink fitting. The length of the shaft 3 is slightly longer than the length L of the rotor 1, and both ends 4 and 4 of the shaft 3 project outward from both ends 5 and 5 of the rotor 1. And in order to reduce the weight of the rotor 1 and the shaft 3,
Both are made of aluminum.

【0005】アルミニウム製軸3の両端4,4には、該
軸3の直径と同一直径の軸端部6を有する鋼製軸7の軸
端部6が溶接8によって、同一軸芯になるように固定さ
れている。そして鋼製軸7には軸受9がナット10によ
り固定支持されていて、鋼製軸7は図示しないエンジン
から動力が伝達され、ロータ1を毎分35000回転等
の高速で回転させるようになっている。
At both ends 4 and 4 of the aluminum shaft 3, a shaft end 6 of a steel shaft 7 having a shaft end 6 having the same diameter as the diameter of the shaft 3 is welded 8 to have the same shaft core. It is fixed to. A bearing 9 is fixedly supported by a nut 10 on the steel shaft 7, and power is transmitted to the steel shaft 7 from an engine (not shown) to rotate the rotor 1 at a high speed such as 35,000 rpm. There is.

【0006】[0006]

【発明が解決しようとする課題】このような従来の回転
機械のロータは高速で回転するため、異種の金属が接合
される溶接8の部分が強度的な信頼性の面での弱点とな
る欠点があった。
Since the rotor of such a conventional rotary machine rotates at a high speed, the portion of the weld 8 to which dissimilar metals are joined becomes a weak point in terms of strength and reliability. was there.

【0007】本発明はこのような従来の欠点を除去し、
アルミニウム製軸と鋼製軸との溶接部分の強度を向上さ
せることができるようにした回転機械のロータを提供す
ることを目的とするものである。
The present invention eliminates such conventional drawbacks,
An object of the present invention is to provide a rotor of a rotary machine capable of improving the strength of a welded portion between an aluminum shaft and a steel shaft.

【0008】[0008]

【課題を解決するための手段】本発明の回転機械のロー
タは、ロータの長さより短い長さのアルミニウム製軸
と、該アルミニウム製軸の直径と同一直径の軸端部を有
する鋼製軸とを備え、前記アルミニウム製軸の両端に前
記鋼製軸の軸端部を同一軸芯上で溶接固定し、前記溶接
固定したアルミニウム製軸の両端と鋼製軸の軸端部との
外周に亘って前記ロータの中心孔を焼き嵌めしたことを
特徴とするものである。
A rotor of a rotary machine according to the present invention comprises an aluminum shaft having a length shorter than that of the rotor, and a steel shaft having a shaft end having the same diameter as the diameter of the aluminum shaft. And the shaft ends of the steel shaft are welded and fixed to both ends of the aluminum shaft on the same shaft core, and both ends of the welded and fixed aluminum shaft and the outer circumference of the shaft end of the steel shaft are covered. The center hole of the rotor is shrink-fitted.

【0009】[0009]

【作用】アルミニウム製軸と鋼製軸との溶接部分の外周
に亘ってロータの中心孔が焼き嵌めされるため、アルミ
ニウム製軸と鋼製軸との溶接部分の強度は向上する。
Since the center hole of the rotor is shrink-fitted over the outer periphery of the welded portion of the aluminum shaft and the steel shaft, the strength of the welded portion of the aluminum shaft and the steel shaft is improved.

【0010】[0010]

【実施例】以下、本発明の実施例を図を参照して説明す
る。
Embodiments of the present invention will now be described with reference to the drawings.

【0011】図1は本発明の一実施例の断面図であっ
て、アルミニウム製軸11の長さはロータ1の長さLよ
り短い長さになっており、アルミニウム製軸11の直径
は、ロータ1の中心孔2より僅かに大きい寸法になって
いる。
FIG. 1 is a sectional view of an embodiment of the present invention, in which the length of the aluminum shaft 11 is shorter than the length L of the rotor 1, and the diameter of the aluminum shaft 11 is The size is slightly larger than the center hole 2 of the rotor 1.

【0012】このアルミニウム製軸11の直径と同一直
径の軸端部12を有する鋼製軸13の軸端部12を、ア
ルミニウム製軸11の両端14,14に同一軸芯上で溶
接15によって固定する。
A shaft end 12 of a steel shaft 13 having a shaft end 12 of the same diameter as the aluminum shaft 11 is fixed to both ends 14, 14 of the aluminum shaft 11 by welding 15 on the same shaft core. To do.

【0013】次に、溶接15によって固定したアルミニ
ウム製軸11の両端14,14と鋼製軸13の軸端部1
2との外周に亘ってロータ1の中心孔2を焼き嵌めし、
ロータ1の長さLより短い長さになっているアルミニウ
ム製軸11の両端14,14と鋼製軸13の軸端部12
との溶接15部分がロータ1の中心孔2の内部に収めら
れるようにする。
Next, both ends 14 and 14 of the aluminum shaft 11 fixed by welding 15 and the shaft end portion 1 of the steel shaft 13 are fixed.
2, the center hole 2 of the rotor 1 is shrink-fitted over the outer circumference,
Both ends 14, 14 of an aluminum shaft 11 and a shaft end 12 of a steel shaft 13 each having a length shorter than the length L of the rotor 1.
The welded 15 parts of and are to be housed in the center hole 2 of the rotor 1.

【0014】アルミニウム製軸11を介してロータ1と
一体に結合した鋼製軸13は軸受16で回転自在に支持
し、鋼製軸13の細径部分の雌ねじにナット17を螺合
して、軸受16を鋼製軸13に固定する。
A steel shaft 13 integrally connected to the rotor 1 via an aluminum shaft 11 is rotatably supported by a bearing 16, and a nut 17 is screwed into a female screw of a small diameter portion of the steel shaft 13 to The bearing 16 is fixed to the steel shaft 13.

【0015】尚、本発明は上記実施例におけるリショル
ム型過給機のロータにのみ限定されるものではなく、種
々の高速回転するロータに適用できることは勿論であ
る。
The present invention is not limited to the rotor of the Lishorum type supercharger in the above-mentioned embodiment, and it goes without saying that it can be applied to various rotors rotating at high speed.

【0016】[0016]

【発明の効果】本発明は、アルミニウム製軸と鋼製軸と
の溶接部分の外周にロータの中心孔が焼き嵌めされるた
め、アルミニウム製軸と鋼製軸との溶接部分がロータで
保護され、溶接部分の強度が向上して破損しなくなる効
果がある。
According to the present invention, since the center hole of the rotor is shrink-fitted to the outer periphery of the welded portion of the aluminum shaft and the steel shaft, the welded portion of the aluminum shaft and the steel shaft is protected by the rotor. The effect of improving the strength of the welded portion and preventing damage is obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.

【図2】従来の回転機械のロータの一例を示す断面図で
ある。
FIG. 2 is a cross-sectional view showing an example of a rotor of a conventional rotary machine.

【符号の説明】[Explanation of symbols]

1 ロータ 2 中心孔 11 アルミニウム製軸11 12 軸端部 13 鋼製軸 14 両端 15 溶接 1 Rotor 2 Center Hole 11 Aluminum Shaft 11 12 Shaft End 13 Steel Shaft 14 Both Ends 15 Welding

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成5年7月23日[Submission date] July 23, 1993

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】全文[Correction target item name] Full text

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【書類名】 明細書[Document name] Statement

【発明の名称】 回転機械のロータPatent application title: Rotor of rotating machine

【特許請求の範囲】[Claims]

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、リショルム型過給機等
のように高速回転する回転機械のロータに関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor of a rotating machine such as a Risholm type supercharger which rotates at a high speed.

【0002】[0002]

【従来の技術】リショルム型過給機は、外周に螺旋状の
突条を設けた雄ロータと、外周に螺旋状の凹溝を設けた
雌ロータとを噛合せ、雄ロータと雌ロータとを高速回転
させて空気を軸方向に圧縮している。
2. Description of the Related Art A Risholum supercharger has a male rotor and a female rotor that mesh with a male rotor having a spiral projection on the outer periphery and a female rotor having a spiral groove on the outer periphery. It rotates at high speed to compress air in the axial direction.

【0003】このような高速で回転する回転機械のロー
タは、軽量にする必要があるため、通常はアルミニウム
で製作される。しかしながらロータを支持して高速の回
転を伝達する軸は、強度上、鋼材で製作する必要があ
る。
The rotor of such a rotating machine that rotates at a high speed is usually made of aluminum because it needs to be lightweight. However, the shaft that supports the rotor and transmits high-speed rotation needs to be made of steel in terms of strength.

【0004】このような従来の回転機械のロータを図2
の断面図によって説明すると、ロータ1の中心孔2には
軸3が焼嵌めによって、固定されている。軸3の長さは
ロータ1の長さLよりも若干長い長さになっていて、軸
3の両端4,4はロータ1の両端5,5の外方に突出し
ている。そしてロータ1は軽量化を図るため、ルミニ
ウムで製作され、軸3はロータ1と略同一の熱膨張係数
を有する金属例えばSUS等によって製作されている。
FIG. 2 shows a rotor of such a conventional rotary machine.
The shaft 3 is fixed to the center hole 2 of the rotor 1 by shrink fitting. The length of the shaft 3 is slightly longer than the length L of the rotor 1, and both ends 4 and 4 of the shaft 3 project outward from both ends 5 and 5 of the rotor 1. The rotor 1 for reducing the weight, is manufactured by A Rumini <br/> um, shaft 3 the rotor 1 and the thermal expansion coefficient substantially the same
Is made of a metal such as SUS .

【0005】3の両端4,4には、該軸3の直径と同
一直径の軸端部6を有する鋼製軸7の軸端部6が溶接8
によって、同一軸芯になるように固定されている。そし
て鋼製軸7には軸受9がナット10により固定支持され
ていて、鋼製軸7は図示しないエンジンから動力が伝達
され、ロータ1を毎分35000回転等の高速で回転さ
せるようになっている。
At both ends 4 and 4 of the shaft 3, a shaft end 6 of a steel shaft 7 having a shaft end 6 having the same diameter as the diameter of the shaft 3 is welded 8
Are fixed so that they have the same axis. A bearing 9 is fixedly supported by a nut 10 on the steel shaft 7, and power is transmitted to the steel shaft 7 from an engine (not shown) to rotate the rotor 1 at a high speed such as 35,000 rpm. There is.

【0006】[0006]

【発明が解決しようとする課題】このような従来の回転
機械のロータは高速で回転するため、異種の金属が接合
される溶接8の部分が強度的な信頼性の面での弱点とな
る欠点があった。
Since the rotor of such a conventional rotary machine rotates at a high speed, the portion of the weld 8 to which dissimilar metals are joined becomes a weak point in terms of strength and reliability. was there.

【0007】本発明はこのような従来の欠点を除去し、
と鋼製軸との溶接部分の強度を向上させることができ
るようにした回転機械のロータを提供することを目的と
するものである。
The present invention eliminates such conventional drawbacks,
An object of the present invention is to provide a rotor for a rotary machine, which can improve the strength of a welded portion between a shaft and a steel shaft.

【0008】[0008]

【課題を解決するための手段】本発明の回転機械のロー
タは、ロータの長さより短い長さのロータと略同一の熱
膨張係数を有する軸と、該の直径と同一直径の軸端部
を有する鋼製軸とを備え、前記の両端に前記鋼製軸の
軸端部を同一軸芯上で溶接固定し、前記溶接固定した
の両端と鋼製軸の軸端部との外周に亘って前記ロータの
中心孔を焼き嵌めしたことを特徴とするものである。
The rotor of a rotating machine according to the present invention has substantially the same heat as a rotor having a length shorter than that of the rotor.
A shaft having a coefficient of expansion, and a steel shaft having a shaft end portion diameter and the same diameter of the shaft, the shaft end portion of the steel shaft and welded on the same axis center to both ends of said shaft, is characterized in that it has shrink fitting a center hole of the rotor over the outer periphery of the shaft end portions at both ends and the steel shaft axis <br/> that the welded.

【0009】[0009]

【作用】と鋼製軸との溶接部分の外周に亘ってロータ
の中心孔が焼き嵌めされるため、と鋼製軸との溶接部
分の強度は向上する。
[Action] Since the shaft and the rotor center hole of over the outer periphery of the welded portion between the steel shaft is shrink fitted, the strength of the welded portion between the shaft and the steel shaft is improved.

【0010】[0010]

【実施例】以下、本発明の実施例を図を参照して説明す
る。
Embodiments of the present invention will now be described with reference to the drawings.

【0011】図1は本発明の一実施例の断面図であっ
て、11の長さはロータ1の長さLより短い長さにな
っており、11の直径は、ロータ1の中心孔2より僅
かに大きい寸法になっている。前記ロータ1はアルミニ
ウムで製作され、又軸11はロータ1と略同一の熱膨張
係数を有する金属、例えばSUS304等によって製作
してある。
FIG. 1 is a sectional view of an embodiment of the present invention, in which the length of the shaft 11 is shorter than the length L of the rotor 1, and the diameter of the shaft 11 is the center of the rotor 1. The size is slightly larger than the hole 2. The rotor 1 is aluminum
Made of um, and the shaft 11 has substantially the same thermal expansion as the rotor 1.
Made of metal with a coefficient, eg SUS304
I am doing it.

【0012】前記軸11の直径と同一直径の軸端部12
を有する鋼製軸13の軸端部12を、11の両端1
4,14に同一軸芯上で溶接15によって固定する。
[0012] shaft end of the same diameter as the diameter of the shaft 11 12
The shaft end 12 of the steel shaft 13 having both ends 1 axis 11
4 and 14 are fixed by welding 15 on the same axis.

【0013】次に、溶接15によって固定した11の
両端14,14と鋼製軸13の軸端部12との外周に亘
ってロータ1の中心孔2を焼き嵌めし、ロータ1の長さ
Lより短い長さになっている11の両端14,14と
鋼製軸13の軸端部12との溶接15部分がロータ1の
中心孔2の内部に収められるようにする。
Next, the center hole 2 of the rotor 1 is shrink-fitted over the outer peripheries of both ends 14, 14 of the shaft 11 fixed by welding 15 and the shaft end 12 of the steel shaft 13 to lengthen the rotor 1. The welded 15 portions of both ends 14 of the shaft 11 having a length shorter than L and the shaft end 12 of the steel shaft 13 are accommodated in the center hole 2 of the rotor 1.

【0014】11を介してロータ1と一体に結合した
鋼製軸13は軸受16で回転自在に支持し、鋼製軸13
の細径部分の雌ねじにナット17を螺合して、軸受16
を鋼製軸13に固定する。
A steel shaft 13 integrally connected to the rotor 1 via a shaft 11 is rotatably supported by a bearing 16, and the steel shaft 13
The nut 17 is screwed into the female thread of the small diameter part of the bearing 16
Is fixed to the steel shaft 13.

【0015】尚、本発明は上記実施例におけるリショル
ム型過給機のロータにのみ限定されるものではなく、種
々の高速回転するロータに適用できることは勿論であ
る。
The present invention is not limited to the rotor of the Lishorum type supercharger in the above-mentioned embodiment, and it goes without saying that it can be applied to various rotors rotating at high speed.

【0016】[0016]

【発明の効果】本発明は、と鋼製軸との溶接部分の外
周にロータの中心孔が焼き嵌めされるため、と鋼製軸
との溶接部分がロータで保護され、溶接部分の強度が向
上して破損しなくなる効果がある。
According to the present invention, since the outer peripheral rotor center hole of the welding portion between the shaft and the steel shaft is shrink-fitted, welded portion between the shaft and the steel shaft is protected by a rotor, of the welded parts It has the effect of improving strength and preventing damage.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.

【図2】従来の回転機械のロータの一例を示す断面図で
ある。
FIG. 2 is a cross-sectional view showing an example of a rotor of a conventional rotary machine.

【符号の説明】 1 ロータ 2 中心孔 11 12 軸端部 13 鋼製軸 14 両端 15 溶接[Explanation of Codes] 1 rotor 2 center hole 11 shaft 12 shaft end 13 steel shaft 14 both ends 15 welding

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 F02B 33/36 9332−3G (72)発明者 高部 茂 東京都江東区豊洲三丁目1番15号 石川島 播磨重工業株式会社東二テクニカルセンタ ー内 (72)発明者 後藤 剛 広島県安芸郡府中町新地3番1号 マツダ 株式会社内 (72)発明者 沖本 統康 広島県安芸郡府中町新地3番1号 マツダ 株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location F02B 33/36 9332-3G (72) Inventor Shigeru Takabe 3-1-1 Toyosu, Koto-ku, Tokyo No. Ishikawajima Harima Heavy Industries Co., Ltd. Toni Technical Center (72) Inventor Go Go No. 3 Shinchi Fuchu-cho, Aki-gun, Hiroshima Prefecture Mazda Co., Ltd. (72) Nobuyasu Okimoto 3 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture No. 1 in Mazda Motor Corporation

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ロータの長さより短い長さのアルミニウ
ム製軸と、該アルミニウム製軸の直径と同一直径の軸端
部を有する鋼製軸とを備え、前記アルミニウム製軸の両
端に前記鋼製軸の軸端部を同一軸芯上で溶接固定し、前
記溶接固定したアルミニウム製軸の両端と鋼製軸の軸端
部との外周に亘って前記ロータの中心孔を焼き嵌めした
ことを特徴とする回転機械のロータ。
1. An aluminum shaft having a length shorter than the length of the rotor, and a steel shaft having a shaft end portion having the same diameter as the diameter of the aluminum shaft, wherein the steel shaft is provided at both ends of the aluminum shaft. The shaft end of the shaft is welded and fixed on the same shaft core, and the center hole of the rotor is shrink-fitted over the outer circumference of both ends of the welded and fixed aluminum shaft and the shaft end of the steel shaft. And the rotor of a rotating machine.
JP15059493A 1993-06-22 1993-06-22 Rotor for rotating machine Pending JPH0711966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15059493A JPH0711966A (en) 1993-06-22 1993-06-22 Rotor for rotating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15059493A JPH0711966A (en) 1993-06-22 1993-06-22 Rotor for rotating machine

Publications (1)

Publication Number Publication Date
JPH0711966A true JPH0711966A (en) 1995-01-13

Family

ID=15500301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15059493A Pending JPH0711966A (en) 1993-06-22 1993-06-22 Rotor for rotating machine

Country Status (1)

Country Link
JP (1) JPH0711966A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7823298B2 (en) 2003-04-24 2010-11-02 Asics Corporation Athletic shoes having an upper whose fitting property is improved
US8555525B2 (en) 2011-01-18 2013-10-15 Saucony Ip Holdings Llc Footwear
US8732982B2 (en) 2011-01-18 2014-05-27 Saucony IP Holdings, LLC Footwear
US8839531B2 (en) 2011-07-19 2014-09-23 Saucony Ip Holdings Llc Footwear

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7823298B2 (en) 2003-04-24 2010-11-02 Asics Corporation Athletic shoes having an upper whose fitting property is improved
US8713821B2 (en) 2003-04-24 2014-05-06 Asics Corporation Athletic shoes having an upper whose fitting property is improved
US8555525B2 (en) 2011-01-18 2013-10-15 Saucony Ip Holdings Llc Footwear
US8732982B2 (en) 2011-01-18 2014-05-27 Saucony IP Holdings, LLC Footwear
US8839531B2 (en) 2011-07-19 2014-09-23 Saucony Ip Holdings Llc Footwear

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