Composite shaft structure and manufacture

Details Composite shaft structure and manufacture Composite shaft structure and manufacture

1994-02-03

1996-08-27

Withers, James D.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

156149, 156169, 156173, 428 361, 428 363, 428 3691, 428113, 428232, 428252, 428294, 428302, 428902, B65H 8100, B29D 2200, B32B 108, B32B 512

Patent

active

055499473

ABSTRACT:
The invention provides improvements to a composite member that has a plurality of plies. The improved composite member has (1) an interior ply which functions to dampen or resist sudden forces exerted on the composite member, (2) an intermediate load-carrying ply, and (3) an exterior abrasion-resistant ply. These plies have multiple, often intertwined fiber components disposed or imbedded with a matrix material, preferably Nylon-6 thermoplastic, to inhibit sharp edges during breakage. One or more of the plies typically has "bi-axial" or "tri-axially" braided fiber geometries wherein one or more fibers are helically wound about the circumference of the member. The helically oriented fibers are oriented at a selectively variable angle which influences the overall bending strength of the composite material. In one aspect, the angles of the fiber components and other factors are used to maintain substantially uniform cross-sectional area over the length of the tubular member while simultaneously varying the bending stiffness. In another aspect, the intermediate ply is constructed with two or more sub-plies. Such sub-plies can include tri-axially extending plies, and circumferentially-wound plies. The circumferentially-wound plies are often wound more tightly at the ends of the composite member to increase resistance to stresses caused by objects within the tubular shaft. A composite member constructed according to the invention resists sudden or impact forces and has high, selectively variable bending strength, high impact resistance, and safe failure modes.

REFERENCES:
patent: Re29112 (1977-01-01), Carter
patent: Re30489 (1981-01-01), Abbott
patent: 2602766 (1952-07-01), Francis
patent: 3007497 (1961-11-01), Shobert
patent: 3080893 (1963-03-01), Craycraft
patent: 3256125 (1966-06-01), Tyler
patent: 3489636 (1970-01-01), Wilson
patent: 3561493 (1971-02-01), Maillard et al.
patent: 3762986 (1973-10-01), Bhuta et al.
patent: 4023801 (1977-05-01), VanAuken
patent: 4171626 (1979-10-01), Yates et al.
patent: 4248062 (1981-02-01), McLain et al.
patent: 4268561 (1981-05-01), Thompson et al.
patent: 4612241 (1986-09-01), Howard, Jr.
patent: 4625671 (1986-12-01), Nishimura
patent: 4657795 (1987-04-01), Foret
patent: 4668318 (1987-05-01), Piccoli et al.
patent: 4699178 (1987-10-01), Washkewicz et al.
patent: 4716072 (1987-12-01), Kim
patent: 4759147 (1988-07-01), Pirazzini
patent: 4791965 (1988-12-01), Wynn
patent: 4840846 (1989-06-01), Ejima et al.
patent: 5048441 (1991-09-01), Quigley
patent: 5188872 (1993-02-01), Quigley
"Tygon Tubing", Bulletin T-104, Norton Performance Plastics, Akron, Ohio.
R. Monks, "Two Trends in Composites", Plastics Technology, pp. 40-45, Mar. 1992.
"Advanced Production Systems for Composite", The Shape of Things to Come, Goldsworthy Engineering, Inc.
"A New Generation of High-Strength Engineered, Composite Structural Shapes", The technology exists today at Alcoa/Goldsworthy Engineering, Alcoa Goldsworthy Engineering.
"TPI Tips", News and Tips for Pultruded Thermoplastic Composites, Thermoplastic Pultrusions, Inc. V.1-No. 2, Nov. 1991 (1 page).
"TPI Tips", News and Tips for Pultruded Thermoplastic Composites, Thermoplastic Pultrusions, Inc. V.2-No. 3, May 1992 (1 page).
"TPI Tips", News and Tips for Pultruded Thermoplastic Composites, Thermoplastic Pultrusions, Inc. V.2-No. 4, Jul. 1992 (1 page).
"TPI Tips", News and Tips for Pultruded Thermoplastic Composites, Thermoplastic Pultrusions, Inc. V.2-No. 5, Sep. 1992 (1 page).
Thermoplastic Pultrusions, Inc. publication, not dated, citing New Developments (8 pages).
European Search Report dated Jan. 28, 1993, application No. EP 90 91 1104.

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