IT1141244B - Struttura tubolare rinforzata e procedimento per produrla - Google Patents

Struttura tubolare rinforzata e procedimento per produrla

Info

Publication number
IT1141244B
IT1141244B IT20170/80A IT2017080A IT1141244B IT 1141244 B IT1141244 B IT 1141244B IT 20170/80 A IT20170/80 A IT 20170/80A IT 2017080 A IT2017080 A IT 2017080A IT 1141244 B IT1141244 B IT 1141244B
Authority
IT
Italy
Prior art keywords
procedure
produce
tubular structure
reinforced tubular
reinforced
Prior art date
Application number
IT20170/80A
Other languages
English (en)
Other versions
IT8020170A0 (it
Inventor
Morris S Loyd
Timothy W Mcgann
Original Assignee
Rockwell International 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 Rockwell International Corp filed Critical Rockwell International Corp
Publication of IT8020170A0 publication Critical patent/IT8020170A0/it
Application granted granted Critical
Publication of IT1141244B publication Critical patent/IT1141244B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/28—Lining or sheathing of internal surfaces applied by "rubber" bag or diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0017—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material
    • B29C63/0021—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material with coherent impregnated reinforcing layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous 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
    • B29C70/202—Fibrous 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 arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F16C3/026—Shafts made of fibre reinforced resin
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
    • Y10S464/902—Particular material
    • Y10S464/903—Nonmetal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Ocean & Marine Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Reinforced Plastic Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
IT20170/80A 1979-02-26 1980-02-26 Struttura tubolare rinforzata e procedimento per produrla IT1141244B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/016,454 US4272971A (en) 1979-02-26 1979-02-26 Reinforced tubular structure

Publications (2)

Publication Number Publication Date
IT8020170A0 IT8020170A0 (it) 1980-02-26
IT1141244B true IT1141244B (it) 1986-10-01

Family

ID=21777209

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20170/80A IT1141244B (it) 1979-02-26 1980-02-26 Struttura tubolare rinforzata e procedimento per produrla

Country Status (11)

Country Link
US (1) US4272971A (it)
JP (2) JPS55115618A (it)
BE (1) BE881884A (it)
CA (1) CA1148484A (it)
CH (1) CH645299A5 (it)
DE (1) DE3006320A1 (it)
FR (1) FR2449818A1 (it)
GB (1) GB2045391B (it)
IT (1) IT1141244B (it)
NL (1) NL8001047A (it)
SE (1) SE441383B (it)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380443A (en) * 1979-11-17 1983-04-19 Felten & Guilleaume Carlswerk Aktiengesellschaft Fiber-reinforced drive shaft
DE2946530A1 (de) * 1979-11-17 1981-05-27 Felten & Guilleaume Carlswerk AG, 5000 Köln Antriebswelle aus faserverstaerktem kunststoff, mit festgewickelten endstuecken
US4318280A (en) * 1980-03-19 1982-03-09 General Motors Corporation Dual property shaft
US4834693A (en) * 1980-06-26 1989-05-30 Avco Corporation Hybrid drive shaft
SE8101237L (sv) * 1980-06-26 1981-12-27 Avco Corp Drivaxel samt sett for tillverkning av densamma
DE3028967C2 (de) * 1980-07-30 1984-10-18 Anton Torshälla Daubner Expansionsachse
SE424218B (sv) * 1980-10-31 1982-07-05 Fiber Mech Transmissionssystem
DE3049117A1 (de) * 1980-12-24 1982-07-01 Schweizerische Aluminium AG, 3965 Chippis Antriebswelle, insbesondere fuer fahrzeuge
DE3113791A1 (de) * 1981-04-04 1982-12-02 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen "rohrfoermiger hohlkoerper, verfahren zu seiner herstellung sowie vorrichtung zur durchfuehrung des verfahrens"
FR2516859A3 (fr) * 1981-11-26 1983-05-27 Lerc Lab Etudes Rech Chim Procede de fabrication d'un mat en matiere plastique armee et mat obtenu a l'aide de ce procede
AT383319B (de) * 1982-09-07 1987-06-25 Fischer Gmbh Rohrfoermiger hohlkoerper aus faserverstaerktem kunststoff, insbesondere strukturbauteil fuer ein fahrzeug, zur uebertragung von druck-,zug-,biege- und torsionskraeften
US4527978A (en) * 1984-02-13 1985-07-09 Dana Corporation Driveshaft
FR2564911B1 (fr) * 1984-05-25 1986-09-12 Skf Cie Ste Financiere Immobil Ensemble comprenant un element tubulaire composite et un about metallique de liaison taraude
GB2165333A (en) * 1984-09-26 1986-04-09 Steven Odobasic Laminated torsion elements
IT1183074B (it) * 1985-01-04 1987-10-05 S F V Soc Finanziaria Vicenza Perno per il movimento centrale di biciclette leggero e resistente, ottenuto per estrusione, particolarmente per l'uso nelle biciclette sportive e da competizione
DE3528307A1 (de) * 1985-08-07 1987-02-19 Erbsloeh Julius & August Verfahren zur herstellung eines verbundprofilstabes
DE3528629A1 (de) * 1985-08-09 1987-02-12 Man Technologie Gmbh Verfahren zur herstellung eines rotorrohres
US4777869A (en) * 1986-03-28 1988-10-18 Pneumo Abex Corporation Fluid actuator including a composite piston rod
US4888224A (en) * 1986-04-30 1989-12-19 Dana Corporation Composite tubular elements and methods of fabrication
US5261991A (en) * 1986-04-30 1993-11-16 Dana Corporation Composite tubular elements and methods of fabrication
IT1205783B (it) * 1986-04-30 1989-03-31 Dana Corp Elementi tubolari composti per albero motore di veicoli e metodi per la fabbricazione
US4838833A (en) * 1986-08-15 1989-06-13 A. O. Smith Corporation Fiber reinforced resin drive shaft having improved resistance to torsional buckling
US4792315A (en) * 1986-12-29 1988-12-20 Outboard Marine Corp Drive shaft assembly for outboard motor
DE3740756A1 (de) * 1987-12-02 1989-06-22 Loehr & Bromkamp Gmbh Drehelastische hohlwelle
FR2638672B1 (fr) * 1988-11-10 1991-01-25 Bertin & Cie Barreau tubulaire rigide en materiau composite, et son procede de fabrication
GB2234320B (en) * 1989-05-17 1993-02-03 Mono Pumps Ltd Helical gear pump
JPH0329202U (it) * 1989-07-28 1991-03-22
DE4004072C2 (de) * 1990-02-08 1994-08-25 Mannesmann Ag Doppelwandhohlkörper
DE4011082A1 (de) * 1990-04-05 1991-10-10 Gkn Automotive Ag Antriebswelle
DE4027296A1 (de) * 1990-08-29 1992-03-12 Gkn Automotive Ag Antriebswelle mit zusatzmassen
EP0474441A3 (en) * 1990-08-30 1993-06-16 Sumitomo Chemical Company, Limited Fiber-reinforced plastics drive shafts
FR2668222B1 (fr) * 1990-10-22 1995-06-09 Glaenzer Spicer Sa Corps de joint de transmission du type comportant une bride de liaison.
US5591084A (en) * 1990-10-22 1997-01-07 Gkn Glaenzer Spicer Transmission joint body portion having an envelope with interior peripheral surface portions extending opposite to and contoured substantially the same as opposite rear surfaces of bearing tracks
FR2670155B1 (fr) * 1990-12-05 1994-11-04 Salomon Sa Procede de fabrication d'objets tubulaires en materiaux composites.
DE4217708A1 (de) * 1992-06-01 1993-12-02 Christian Schlesinger Kunststoffolienschlauch aus elastischem Polyester
CH689081A5 (de) * 1992-07-30 1998-09-15 Schoeller Plast Ag Verfahren zum Auskleiden eines Kunststoffeimers sowie Kunststoffeimer zur Durchfuehrung des Verfahrens.
DE4408444C1 (de) * 1994-03-12 1995-04-06 Dornier Gmbh Rohr oder Hohlprofil mit besonderen Festigkeitseigenschaften bei geringem Gewicht und Verfahren zu seiner Herstellung
US5806794A (en) * 1995-01-27 1998-09-15 The B.F.Goodrich Company Aircraft braking system with damped brake rod
DE69621102T2 (de) 1995-11-16 2003-01-02 The B.F. Goodrich Co., Akron Verschachtelte Dämpfungsvorrichtung mit relativer Bewegung
US5915503A (en) * 1995-11-16 1999-06-29 The B.F. Goodrich Company Brake rod having a bending mode coulomb damper
US5809829A (en) * 1996-11-25 1998-09-22 Amada Mfg America Inc. Ball screw and work feeding device using same
US6336986B1 (en) 1997-07-14 2002-01-08 Korea Advanced Institute Science Technology Method for producing hybrid driveshaft
US6464591B1 (en) * 1998-06-26 2002-10-15 Ntn Corporation Power transmission shaft
DE19908604A1 (de) * 1999-02-27 1999-12-30 Daimler Chrysler Ag Kraftfahrzeug - Fahrantriebswelle
US6254488B1 (en) * 1999-07-13 2001-07-03 Daimlerchrysler Corporation Hydroformed drive shaft and method of making the same
JP2001047883A (ja) * 1999-08-05 2001-02-20 Ntn Corp 動力伝達シャフト
ES2225612T3 (es) * 2000-09-07 2005-03-16 BEHR GMBH & CO. KG Componente para vehiculo automovil.
JP4846103B2 (ja) * 2001-02-07 2011-12-28 三菱レイヨン株式会社 繊維強化樹脂パイプ及びこれを用いた動力伝達シャフト
KR100405480B1 (ko) * 2001-09-13 2003-11-14 현대자동차주식회사 구동축용 튜브와 요크 결합 구조
US7427237B2 (en) 2002-01-03 2008-09-23 Burkett Jerald S Load sharing composite shaft
WO2003076176A2 (en) * 2002-03-04 2003-09-18 Vyatek Sports, Inc. Design and manufacturing method for multi-material tube structures
ITMI20020841A1 (it) * 2002-04-19 2003-10-20 Cem Spa Dispositivo per la rilegatura automatica di fascicoli di spessore variabile comprendente almeno due mezzi di alimentazione
US6863763B2 (en) * 2002-10-23 2005-03-08 Korea Advanced Institute Of Science And Technology Hybrid propeller shaft made of metal and composite material and method of manufacturing the same
US20100113181A1 (en) * 2002-11-12 2010-05-06 Vyatek Sports, Inc. Multi-material golf clubhead
US7134964B2 (en) * 2003-08-20 2006-11-14 Gkn Driveline North America, Inc. Propeller shaft assembly with stiffening feature
US6986713B2 (en) * 2003-08-20 2006-01-17 Gkn Driveline North America, Inc. Propeller shaft
GB2406154B (en) * 2003-09-17 2007-01-03 Crompton Technology Group Ltd Hybrid composite transmission shaft
US20050176513A1 (en) * 2004-02-11 2005-08-11 Illinois Tool Works Inc. Steel automotive drive shaft with carbon fiber liner
US7083523B2 (en) * 2004-03-04 2006-08-01 Automotive Components Holdings, Llc Damper for a vehicle torque transferring assembly
FR2872218B1 (fr) * 2004-06-29 2006-09-29 Snecma Moteurs Sa Tube de degazage pour arbre basse-pression de turbomachine
US7334312B2 (en) * 2005-02-23 2008-02-26 U.S. Manufacturing Corporation Method of forming axles with internally thickened wall sections
US20070087848A1 (en) * 2005-04-29 2007-04-19 L&L Products, Inc. Dampener
US7625616B2 (en) * 2005-06-23 2009-12-01 Sonoco Development, Inc. Support post with improved axial strength
CN101505912B (zh) * 2006-08-17 2012-10-24 贝尔直升机泰克斯特龙公司 用于旋翼飞行器的复合物-钢混合式主轴
FR2917474B1 (fr) * 2007-06-18 2009-08-07 Skf Aerospace France Soc Par A Arbre de transmission de mouvements et/ou d'efforts en rotation
DE102008056017A1 (de) * 2008-11-05 2010-05-06 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Herstellung einer Triebwerkswelle
JP5369338B2 (ja) 2009-05-15 2013-12-18 美津濃株式会社 野球用またはソフトボール用バット
WO2012094631A1 (en) * 2011-01-06 2012-07-12 Mizuno Usa, Inc. Baseball or softball bat with modified restitution characteristics
CN103429422B (zh) 2011-01-12 2016-08-31 小利兰斯坦福大学理事会 复合叠层结构及其制造和使用方法
US9486965B2 (en) 2011-11-03 2016-11-08 The Boeing Company Composite columnar structure having co-bonded reinforcement and fabrication method
US10464656B2 (en) 2011-11-03 2019-11-05 The Boeing Company Tubular composite strut having internal stiffening and method for making the same
US8904904B2 (en) * 2011-11-03 2014-12-09 The Boeing Company Tubular composite strut having internal stiffening
US10457011B2 (en) 2011-11-03 2019-10-29 The Boeing Company Composite columnar structure having co-bonded reinforcement and fabrication method
US11131247B2 (en) 2018-01-30 2021-09-28 General Electric Company Additively manufactured rotating shaft
US11976657B2 (en) * 2019-02-13 2024-05-07 Mitsubishi Electric Corporation Compressor and air conditioner
US11892035B2 (en) 2021-04-23 2024-02-06 Hamilton Sundstrand Corporation Composite/metal joints
CN113977984B (zh) * 2021-10-15 2023-07-04 江西洪都航空工业集团有限责任公司 一种管状双曲面复合材料结构件的制备方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1490219A (en) * 1924-04-15 Resilient driving connection
US1958982A (en) * 1928-09-01 1934-05-15 John B Wintercorn Dynamic balancing of tubular shafting for transmission of power purposes
US2664373A (en) * 1950-10-25 1953-12-29 Dow Chemical Co Method of lining rigid pipe with elastic thermoplastics
GB767209A (en) * 1954-02-11 1957-01-30 Staveley Iron & Chemical Compa Improvements in or relating to manufacture of pipes by spinning
FR1207015A (fr) * 1958-05-28 1960-02-12 élément tubulaire à paroi stratifiée, procédé et appareillage pour sa fabrication
US3071162A (en) * 1959-10-06 1963-01-01 Dow Chemical Co Steel pipe having organic thermoplastic liner with glass fiber reinforcement
US3322157A (en) * 1963-08-19 1967-05-30 Mobil Oil Corp Cement-lined pipes of increased flexibility and method of making same
US3152458A (en) * 1963-08-28 1964-10-13 Pittsburgh Steel Co Oil well drilling string
US3447572A (en) * 1966-11-08 1969-06-03 Exxon Research Engineering Co Reinforced thermoset plastic pipe
US3542079A (en) * 1968-01-15 1970-11-24 Smith Corp A O Glass reinforced plastic article
DE2116683A1 (en) * 1971-04-06 1972-11-02 Elastine Process and Development Ltd., Toronto (Kanada) Lined plastics moulding - esp footwear or gloves with heat insulating moisture diffusing textile lining
US3718573A (en) * 1971-11-08 1973-02-27 Magnode Prod Inc Fluid fitting
FR2307210A1 (fr) * 1975-04-07 1976-11-05 Mantec Ind Ltd Procede et appareil de chemisage de tube
DE2631374A1 (de) * 1976-07-13 1978-01-26 Bosch Gmbh Robert Verfahren zur herstellung von hohlkoerpern aus verbundwerkstoffen
JPS5371423A (en) * 1976-12-08 1978-06-24 Toray Ind Inc Vehiclar driving propeller shaft
FR2376801A1 (fr) * 1977-01-07 1978-08-04 Lequeux Christian Perfectionnements aux dispositifs de protection mecanique des tranches annulaires de tubes ou embouts tubulaires
US4173670A (en) * 1977-05-27 1979-11-06 Exxon Research & Engineering Co. Composite tubular elements
CA1098329A (en) * 1977-12-02 1981-03-31 Richard L. Vanauken Composite tubular element and methods for making same
US4171626A (en) * 1978-03-27 1979-10-23 Celanese Corporation Carbon fiber reinforced composite drive shaft
US4185472A (en) * 1978-03-27 1980-01-29 Celanese Corporation Fiber reinforced composite shaft with metallic connector sleeves mounted by radial pin interlock

Also Published As

Publication number Publication date
NL8001047A (nl) 1980-08-28
JPS55115618A (en) 1980-09-05
JPH01158816U (it) 1989-11-02
GB2045391A (en) 1980-10-29
CH645299A5 (de) 1984-09-28
CA1148484A (en) 1983-06-21
SE441383B (sv) 1985-09-30
FR2449818B1 (it) 1985-02-15
IT8020170A0 (it) 1980-02-26
US4272971A (en) 1981-06-16
FR2449818A1 (fr) 1980-09-19
SE8001447L (sv) 1980-08-27
DE3006320A1 (de) 1980-09-04
GB2045391B (en) 1982-12-22
BE881884A (nl) 1980-06-16

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