FR2709441B1 - Elément tubulaire en matériau composite. - Google Patents

Elément tubulaire en matériau composite.

Info

Publication number
FR2709441B1
FR2709441B1 FR9410551A FR9410551A FR2709441B1 FR 2709441 B1 FR2709441 B1 FR 2709441B1 FR 9410551 A FR9410551 A FR 9410551A FR 9410551 A FR9410551 A FR 9410551A FR 2709441 B1 FR2709441 B1 FR 2709441B1
Authority
FR
France
Prior art keywords
composite material
tubular element
tubular
composite
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 - Fee Related
Application number
FR9410551A
Other languages
English (en)
Other versions
FR2709441A1 (fr
Inventor
Muneki Okada
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.)
Shimano Inc
Original Assignee
Shimano Inc
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
Priority claimed from JP21948893A external-priority patent/JP3373257B2/ja
Priority claimed from JP21948993A external-priority patent/JP3373258B2/ja
Application filed by Shimano Inc filed Critical Shimano Inc
Publication of FR2709441A1 publication Critical patent/FR2709441A1/fr
Application granted granted Critical
Publication of FR2709441B1 publication Critical patent/FR2709441B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K87/00Fishing rods
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/10Non-metallic shafts
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/42Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06Fibrous reinforcements only
    • B29C70/10Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B29C70/205Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres the structure being shaped to form a three-dimensional configuration
    • B29C70/207Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres the structure being shaped to form a three-dimensional configuration arranged in parallel planes of fibres crossing at substantial angles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00Layered products having a general shape other than plane
    • B32B1/08Tubular products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/02Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica the layer of fibres or particles being impregnated or embedded in a plastic substance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • B32B7/022Mechanical properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/04Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/12Rigid pipes of plastics with or without reinforcement
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00Characteristics of used materials
    • A63B2209/02Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A63B2209/023Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00Characteristics of used materials
    • A63B2209/02Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A63B2209/026Ratio fibres-total material
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • A63B60/08Handles characterised by the material
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • A63B60/10Handles with means for indicating correct holding positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56Winding and joining, e.g. winding spirally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00Use of elements other than metals as reinforcement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/52Sports equipment ; Games; Articles for amusement; Toys
    • B29L2031/5227Clubs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1369Fiber or fibers wound around each other or into a self-sustaining shape [e.g., yarn, braid, fibers shaped around a core, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/30Self-sustaining carbon mass or layer with impregnant or other layer
FR9410551A 1993-09-03 1994-09-02 Elément tubulaire en matériau composite. Expired - Fee Related FR2709441B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP21948893A JP3373257B2 (ja) 1993-09-03 1993-09-03 管状体
JP21948993A JP3373258B2 (ja) 1993-09-03 1993-09-03 管状体
US08/590,055 US5721030A (en) 1993-09-03 1996-01-16 Tubular member

Publications (2)

Publication Number Publication Date
FR2709441A1 FR2709441A1 (fr) 1995-03-10
FR2709441B1 true FR2709441B1 (fr) 1996-10-31

Family

ID=27330307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9410551A Expired - Fee Related FR2709441B1 (fr) 1993-09-03 1994-09-02 Elément tubulaire en matériau composite.

Country Status (5)

Country Link
US (1) US5721030A (fr)
DE (1) DE4430980B4 (fr)
FR (1) FR2709441B1 (fr)
GB (1) GB2281491B (fr)
IT (1) IT1279371B1 (fr)

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IT1279371B1 (it) * 1993-09-03 1997-12-10 Shimano Kk Elemento tubolare comprendente l'avvolgimento di una pluralita' di strati di materiale pre-impregnato per l'impiego ad esempio come canna
EP0943237B1 (fr) 1994-12-06 2003-11-12 Daiwa Seiko Inc. Substance tubulaire et méthode de sa fabrication
US5968621A (en) * 1996-01-16 1999-10-19 Shimano, Inc. Tubular member
US6273830B1 (en) * 1996-04-19 2001-08-14 Nippon Mitsubishi Oil Corporation Tapered hollow shaft
EP0816123B1 (fr) * 1996-06-27 2009-02-18 Daiwa Seiko Inc. Elément pour équipement de pêche ou de sport
EP0826481A3 (fr) * 1996-08-27 1999-06-02 Daiwa Seiko Inc. Article tubulaire
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DE29704399U1 (de) * 1997-03-11 1997-05-07 You Chin San Golfschläger
US5964056A (en) * 1997-04-24 1999-10-12 Berkley Inc. Graphite fiber fishing rod blank incorporating a non-woven non-unidirectional material
US6110056A (en) * 1997-05-23 2000-08-29 The Yokohama Rubber Co., Ltd. Golf club group
JP4116135B2 (ja) * 1997-06-26 2008-07-09 ダイワ精工株式会社 ゴルフクラブ
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US6520876B1 (en) * 2000-10-10 2003-02-18 Eastman, Ii Robert Reinforced arrow shaft including integral fabric sleeve, method of making same, and arrow which is produced therewith
JP2003024489A (ja) * 2001-07-11 2003-01-28 Sumitomo Rubber Ind Ltd ゴルフクラブシャフト
FR2835584B1 (fr) * 2002-02-04 2004-10-29 Allibert Equipement Corps creux de revolution en matiere thermoplastique et procede de realisation d'un tel corps
TWI266607B (en) * 2002-05-01 2006-11-21 Shimano Kk Fishing rod
JP4360233B2 (ja) * 2004-03-11 2009-11-11 東レ株式会社 ゴルフシャフト
US7025690B2 (en) * 2004-04-02 2006-04-11 Sang-Ki Nam Golf club with transparent grip
WO2005120269A1 (fr) * 2004-06-07 2005-12-22 Jong-Hoe Park Chaussures aptes a l'amortissement de choc par la circulation d'air
JP2008029534A (ja) * 2006-07-27 2008-02-14 Sri Sports Ltd ゴルフクラブシャフト
US7608002B2 (en) * 2006-08-31 2009-10-27 Eastman Holding Company Composite arrow shaft including two-part reinforcing sleeve, method of making same, and front-loaded arrow which is produced therewith
KR101301817B1 (ko) * 2006-10-26 2013-08-29 남상기 골프채용 그립
JP4284705B2 (ja) * 2006-12-11 2009-06-24 トヨタ自動車株式会社 成形体の製造方法、成形体、並びにタンク
JP4886818B2 (ja) * 2009-06-12 2012-02-29 Sriスポーツ株式会社 ゴルフクラブシャフト及びゴルフクラブ
JP5186033B1 (ja) * 2011-10-12 2013-04-17 ダンロップスポーツ株式会社 ゴルフクラブシャフト及びゴルフクラブ
JP5181055B1 (ja) * 2011-10-12 2013-04-10 ダンロップスポーツ株式会社 ゴルフクラブシャフト及びゴルフクラブ
JP6166141B2 (ja) * 2013-10-02 2017-07-19 ダンロップスポーツ株式会社 ゴルフクラブ用シャフト
JP6139388B2 (ja) 2013-11-29 2017-05-31 グローブライド株式会社 釣竿
CN103746288B (zh) * 2013-12-23 2017-07-14 南京大学 基于叠印啁啾结构的dfb半导体激光器及激光器阵列
JP6148173B2 (ja) 2013-12-27 2017-06-14 グローブライド株式会社 釣竿
JP6148172B2 (ja) 2013-12-27 2017-06-14 グローブライド株式会社 釣竿
US10085433B2 (en) * 2014-12-26 2018-10-02 Globeride, Inc. Tip rod and fishing rod having the same
DE102016106192B3 (de) * 2016-04-05 2017-06-08 ACS Schaftmanufaktur Germany GmbH Golfschlägerschaft
CN105805432B (zh) * 2016-05-05 2018-03-13 中国石油天然气集团公司 一种复合材料增强钢管道及其制备方法
JP6880578B2 (ja) * 2016-06-22 2021-06-02 横浜ゴム株式会社 冷媒輸送ホース用ゴム組成物及び冷媒輸送ホース
KR20180007020A (ko) * 2016-07-11 2018-01-22 현대자동차주식회사 복합재 피스톤핀 및 그 제조방법
KR101866039B1 (ko) 2016-07-19 2018-06-11 현대자동차주식회사 복합재 피스톤핀 처리방법 및 표면처리된 복합재 피스톤핀
DE102017007059B4 (de) * 2017-07-26 2021-04-01 Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Verfahren zur Herstellung eines Rohrabschnitts einer Flugkörperaußenhülle und Rohrabschnitt einer Flugkörperaußenhülle

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US5397636A (en) * 1991-12-11 1995-03-14 Tonen Corporation Hybrid laminated prepreg and ski pole shaft using the same
US5326099A (en) * 1991-12-26 1994-07-05 The Yokohama Rubber Co., Ltd. Golf club
JP2632621B2 (ja) * 1992-01-24 1997-07-23 ダイワ精工株式会社 釣竿等の管状体
JP3154805B2 (ja) * 1992-04-30 2001-04-09 株式会社シマノ 管状体
JP2652937B2 (ja) * 1992-06-11 1997-09-10 ダイワ精工株式会社 釣 竿
JPH06165844A (ja) * 1992-11-30 1994-06-14 Tonen Corp ゴルフクラブシャフト
JPH0740488A (ja) * 1993-07-28 1995-02-10 Mitsubishi Chem Corp 繊維強化樹脂管状体
JP3020222B2 (ja) * 1993-08-31 2000-03-15 ソマール株式会社 ゴルフクラブ用シャフト及びその製造方法
IT1279371B1 (it) * 1993-09-03 1997-12-10 Shimano Kk Elemento tubolare comprendente l'avvolgimento di una pluralita' di strati di materiale pre-impregnato per l'impiego ad esempio come canna
US5545094A (en) * 1995-08-24 1996-08-13 Hsu; Young-Chen Golf club shaft

Also Published As

Publication number Publication date
ITMI941803A0 (it) 1994-08-31
GB2281491A (en) 1995-03-08
US5721030A (en) 1998-02-24
FR2709441A1 (fr) 1995-03-10
DE4430980A1 (de) 1995-03-09
GB2281491B (en) 1997-05-28
DE4430980B4 (de) 2007-04-12
IT1279371B1 (it) 1997-12-10
ITMI941803A1 (it) 1996-03-02
GB9417703D0 (en) 1994-10-19

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