WO2000041880A1 - Glass fiber sheet and pipe like article using the same - Google Patents

Glass fiber sheet and pipe like article using the same Download PDF

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Publication number
WO2000041880A1
WO2000041880A1 PCT/KR1999/000084 KR9900084W WO0041880A1 WO 2000041880 A1 WO2000041880 A1 WO 2000041880A1 KR 9900084 W KR9900084 W KR 9900084W WO 0041880 A1 WO0041880 A1 WO 0041880A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass fiber
strands
fiber sheet
pipe
sheet
Prior art date
Application number
PCT/KR1999/000084
Other languages
French (fr)
Inventor
Byung Don Yoo
Original Assignee
Byung Don Yoo
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 Byung Don Yoo filed Critical Byung Don Yoo
Publication of WO2000041880A1 publication Critical patent/WO2000041880A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/10—Non-metallic shafts
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K87/00—Fishing rods
    • 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
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • B29C70/226—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure comprising mainly parallel filaments interconnected by a small number of cross threads
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping 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
    • B29C70/32—Shaping 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 on a rotating mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/02—Layered 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 structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/02—Layered 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 structural features of a fibrous or filamentary layer
    • B32B5/12—Layered 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 structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/0081—Substantially flexible shafts; Hinged shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic

Definitions

  • the present invention relates to a glass fiber sheet usable for a pipe like article such as a fishing rod together with a carbon fiber, and more particularly to a lighter glass fiber sheet having an improved sheet structure with an resilient property and a pipe like article usable in a fishing rod, a golf stick, a ski pole and etc. which require a good resilient and self-upright properties by using the glass fiber sheet.
  • a pipe like article such as a fishing rod is made of a carbon fiber sheet impregnated with epoxy or a glass fiber sheet impregnated with thermosetting resin such as phenol resin or epoxy.
  • thermosetting resin such as phenol resin or epoxy.
  • the pipe article of a glass fiber sheet has drawbacks that it is heavier and has decreased resiliency together with advantageous properties in the tensile strength and resistance to the fracture or spitting. Therefore, the pipe article has been proposed to make it having both advantageous properties by using the glass fiber together with the carbon fiber.
  • the process for making for example a fishing rod comprises the following steps: - rolling step of alternatively winding the glass fiber and carbon fiber sheets prepared in a cone shape on a tapered mendril by rolling the mendril so as to have five layers at the front portion thereof and seven layers at the rear portion; - taping step of winding a film of cellophane, polypropylene or polyester after the rolling step;
  • thermosetting resin for example, epoxy or phenol resin
  • a fishing lover prefers the fishing rod having a good flexibility and a straightening property for easy and long dropping.
  • a golfer also prefers the golf stick having a good flexibility and straightening property upon impact for the long -flying distance of a ball.
  • the conventional glass fiber sheet(l ⁇ ), as well as the 25 carbon sheet(20) is impregnated with thermosetting resin and has the structure that the longitude strands (11a) and parallel strands (lib) of the fiber strands(ll) having the diameter of 0J3mm - 0J2mm are woven to be arranged in both directions, thereby causing its properties of matter to be disadvantageous.
  • a glass fiber sheet which comprises a scrim base having a thickness of 0.05mm or less, a plurality of glass fiber strands arranged in the same direction on the scrim base, the scrim base and glass fiber strands thereon being impregnated with thermosetting resin.
  • a pipe like article which is formed by repeatedly winding a glass fiber sheet with strands arranged in the same direction and a carbon fiber sheet with strands arranged in both directions.
  • a tapered pipe type tip member for a fishing rod which comprises a front portion with a relatively decreased diameter on which a glass fiber sheet with strands in the same direction is repeatedly wound in a multiple layer and a rear portion with a relatively increased diameter on which a carbon sheet with strands in both directions is repeatedly wound in a multiple layer.
  • Fig. 1 is a schematic perspective view showing the structure of a conventional glass fiber sheet
  • Fig. 2 is a partially broken view showing the structure of a conventional fishing rod
  • Fig. 3 is a schematic perspective view showing a glass fiber sheet of the present invention.
  • Fig. 4 is a partially broken view showing the structure of the fishing rod of the present invention.
  • Fig. 5 is a partially broken view of a top member of the fishing rod according the present invention.
  • the glass fiber sheet(lOO) according to the present invention is made of a scrim base(120) with a thickness of 0.03mm, a plurality of glass fiber strands(ll ⁇ ) having a diameter of J3mm and 0J25mm arranged in the same direction on the scrim base(120), the scrim base and glass fiber strands thereon being impregnated with thermosetting resin.
  • the thickness of the scrim of the base(120) woven is excessive, the flexibility and straightening property is degraded.
  • the thickness of the scrim is preferably of 0.05mm or less.
  • the glass fiber sheet(lOO) is made in the desired length by the precesses of positioning the strands in the same direction on the scrim base(120) and sticking the strands thereon by impregnating them with thermosetting resin.
  • the glass fiber sheet(lOO) is different from the conventional glass fiber sheet in that the parallel strands(ll ⁇ ) are arranged in the same direction on the base (120).
  • the pipe article made of the glass fiber sheet(lOO) and conventional carbon sheet according the invention has highly improved flexibility and straightening property.
  • any necessary article can be made by those having skill in this art.
  • a fishing rod, a golf stick or a ski pole can be made of the pipe article according to the invention by selecting for example a thickness and a diameter for necessary to their respective flexibility and straightening property.
  • the pipe article according to the present invention is formed by repeatedly winding the glass fiber sheet(lOO) with strands arranged in the same direction and the carbon fiber sheet(200) with strands arranged in both directions and the strands in the glass fiber sheet(lOO) are arranged in the longitudinal direction of the pipe article so that their flexibility and straightening property is improved.
  • a glass fiber sheet(lOO) with strands(ll ⁇ ) in the same direction is repeatedly wound on the front portion with a relatively decreased diameter
  • a carbon sheet(200) with strands in both directions is repeatedly wound on a rear portion with a relatively increased diameter, so that the tip member has a tapered shape.
  • the numeral(300) in the drawing designates a painting layer.
  • the pipe like article made of the glass fiber sheet(lOO) with strands (110) in the same direction together with the carbon sheet (200) with strands in both directions is lighter and has improved resiliency due to the light carbon fiber sheet and further having improvements in the flexibility and straightening property due to the novel structure of the glass fiber sheet.
  • the pipe article of the present invention when a bending force acts on the pipe article of the present invention, as shown in Fig. 4, the pipe article appears a good flexibility because the strands in the glass fiber sheet is parallel arranged with the longitudinal direction of the pipe.
  • the front portion of the tip member for a fishing rod s made of the glass fiber sheet(lOO) having strands in the same direction thereby providing the highly improved flexibility and straightening property. Therefore, the fishing lovers can enjoy the fishing with the best feeling to the bite and can do dropping correctly at a long distance.
  • a pipe like article which is formed by repeatedly winding a glass fiber sheet with strands arranged in the same direction and a carbon fiber sheet with strands arranged in both directions.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Environmental Sciences (AREA)
  • Composite Materials (AREA)
  • Physical Education & Sports Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Laminated Bodies (AREA)
  • Golf Clubs (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

The present invention relates to a glass fiber sheet usable for a pipe like article usable in a fishing rod, a golf stick, a ski pole and etc. which require a good resilient and self-upright properties by using the glass fiber sheet and to a lighter glass fiber sheet having an improved sheet structure with a resilient property and a pipe like article. A glass fiber sheet for a pipe like article according to the present invention comprises a scrim base (120) having a thickness of 0.05 mm and less, a plurality of glass fiber strands (110) arranged in the same direction on the scrim base (120), said scrim base (120) and glass fiber strands (110) thereon being impregnated with thermosetting resin. Also, a pipe like article according to the present invention comprises a glass fiber sheet (100) with strands (110) arranged in the same direction and a carbon fiber sheet (200) with strands arranged in both directions, said glass fiber sheet (100) and carbon sheet (200) being wound to be formed in the shape of a tapered pipe. A tip member for a fishing rod according to the present invention comprises a front portion in a relatively decreased diameter on which a glass fiber sheet (100) with strands (110) in the same direction wound in a multiple layer and a rear portion in a relatively increased diameter on which a carbon sheet (200) with strands in both directions is wound in multiple layer.

Description

DESCRIPTION
THE TITLE OF THE INVENTION
Glass Fiber Sheet And Pipe Like Article Using The Same
TECHNICAL FIELD
The present invention relates to a glass fiber sheet usable for a pipe like article such as a fishing rod together with a carbon fiber, and more particularly to a lighter glass fiber sheet having an improved sheet structure with an resilient property and a pipe like article usable in a fishing rod, a golf stick, a ski pole and etc. which require a good resilient and self-upright properties by using the glass fiber sheet.
BACKGROUND ART
Generally, a pipe like article such as a fishing rod is made of a carbon fiber sheet impregnated with epoxy or a glass fiber sheet impregnated with thermosetting resin such as phenol resin or epoxy. Comparing the pipe article of a carbon sheet, the pipe article of a glass fiber sheet has drawbacks that it is heavier and has decreased resiliency together with advantageous properties in the tensile strength and resistance to the fracture or spitting. Therefore, the pipe article has been proposed to make it having both advantageous properties by using the glass fiber together with the carbon fiber.
Typically, the process for making for example a fishing rod comprises the following steps: - rolling step of alternatively winding the glass fiber and carbon fiber sheets prepared in a cone shape on a tapered mendril by rolling the mendril so as to have five layers at the front portion thereof and seven layers at the rear portion; - taping step of winding a film of cellophane, polypropylene or polyester after the rolling step;
- heat treating step of heating the mendril with the taped film at the temperature from 130 °C to 180 °C for 150 minutes and cooling it so that the molten thermosetting resin (for example, epoxy or phenol resin) is hardened to form a surface and to prevent the strands of the wound sheets from untying;
- peeling off step of removing the film layer on the surface;
- separating step of removing the mendril to obtain a fishing rod; and - postreatments of polishing of surface, varnishing and painting.
Such process is similar to those used to make a ski pole and a golf stick, the resultant article is in the spotlight as a substitute of the various pipe article because of its good resiliency lightness.
Whereas, a fishing lover prefers the fishing rod having a good flexibility and a straightening property for easy and long dropping.
Furthermore, a golfer also prefers the golf stick having a good flexibility and straightening property upon impact for the long -flying distance of a ball.
However, the conventional glass fiber sheet(lθ), as well as the 25 carbon sheet(20) is impregnated with thermosetting resin and has the structure that the longitude strands (11a) and parallel strands (lib) of the fiber strands(ll) having the diameter of 0J3mm - 0J2mm are woven to be arranged in both directions, thereby causing its properties of matter to be disadvantageous.
That is, when a bending force acts on the pipe article made of the conventional glass fiber and carbon sheets, as shown in Fig. 2, the longitudinal strands(lla) are easily flexible, but the parallel strands(llb) integrated with the longitudinal strands(lla) by the thermosetting resin acts to prevent the longitudinal strands(lla) from being flexible, thereby degrading the flexibility of the pipe article. Furthermore, in case of the fishing having different thicknesses and decreased diameter, the different stresses is generated at the longitudinal strands(lla) upon flexing of the parallel strands (lib), thereby causing the straightening property to be degraded.
DISCLOSURE OF INVENTION
It is an primary object of the present invention to provide a novel and improved glass fiber sheet in which the glass fiber strands are arranged in the same direction.
It is another object of the present invention to provide a pipe like article made of such glass fiber sheet together with a carbon sheet to have improved flexibility and straightening property together with the good resiliency of the carbon sheet.
To achieve the above objects, a glass fiber sheet is provided according to the present invention, which comprises a scrim base having a thickness of 0.05mm or less, a plurality of glass fiber strands arranged in the same direction on the scrim base, the scrim base and glass fiber strands thereon being impregnated with thermosetting resin.
According to the present invention, a pipe like article is provided which is formed by repeatedly winding a glass fiber sheet with strands arranged in the same direction and a carbon fiber sheet with strands arranged in both directions.
According to the present invention, a tapered pipe type tip member for a fishing rod is provided which comprises a front portion with a relatively decreased diameter on which a glass fiber sheet with strands in the same direction is repeatedly wound in a multiple layer and a rear portion with a relatively increased diameter on which a carbon sheet with strands in both directions is repeatedly wound in a multiple layer. The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
BRIEF DESCRIPTION OF DRAWINGS
Fig. 1 is a schematic perspective view showing the structure of a conventional glass fiber sheet;
Fig. 2 is a partially broken view showing the structure of a conventional fishing rod;
Fig. 3 is a schematic perspective view showing a glass fiber sheet of the present invention;
Fig. 4 is a partially broken view showing the structure of the fishing rod of the present invention;
Fig. 5 is a partially broken view of a top member of the fishing rod according the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
Referring to Fig. 3, the glass fiber sheet(lOO) according to the present invention is made of a scrim base(120) with a thickness of 0.03mm, a plurality of glass fiber strands(llθ) having a diameter of J3mm and 0J25mm arranged in the same direction on the scrim base(120), the scrim base and glass fiber strands thereon being impregnated with thermosetting resin.
IF the thickness of the scrim of the base(120) woven is excessive, the flexibility and straightening property is degraded. Thus, when the strand(llθ) for a glass fiber sheet has the thickness of 0J25mm or less, the thickness of the scrim is preferably of 0.05mm or less.
The glass fiber sheet(lOO) is made in the desired length by the precesses of positioning the strands in the same direction on the scrim base(120) and sticking the strands thereon by impregnating them with thermosetting resin. Thus, the glass fiber sheet(lOO) is different from the conventional glass fiber sheet in that the parallel strands(llθ) are arranged in the same direction on the base (120).
Referring to Fig. 4, the pipe article made of the glass fiber sheet(lOO) and conventional carbon sheet according the invention has highly improved flexibility and straightening property.
The process for making the pipe article of the glass fiber sheet(lOO) and the conventional carbon sheet(200) is as described above, any necessary article can be made by those having skill in this art. For example, a fishing rod, a golf stick or a ski pole can be made of the pipe article according to the invention by selecting for example a thickness and a diameter for necessary to their respective flexibility and straightening property.
Whereas, the pipe article according to the present invention is formed by repeatedly winding the glass fiber sheet(lOO) with strands arranged in the same direction and the carbon fiber sheet(200) with strands arranged in both directions and the strands in the glass fiber sheet(lOO) are arranged in the longitudinal direction of the pipe article so that their flexibility and straightening property is improved.
Also, to strengthen the flexibility and straightening of the tip member of the fishing rod, as shown in Fig. 5, while a glass fiber sheet(lOO) with strands(llθ) in the same direction is repeatedly wound on the front portion with a relatively decreased diameter, a carbon sheet(200) with strands in both directions is repeatedly wound on a rear portion with a relatively increased diameter, so that the tip member has a tapered shape. The numeral(300) in the drawing designates a painting layer.
According to the invention, the pipe like article made of the glass fiber sheet(lOO) with strands (110) in the same direction together with the carbon sheet (200) with strands in both directions is lighter and has improved resiliency due to the light carbon fiber sheet and further having improvements in the flexibility and straightening property due to the novel structure of the glass fiber sheet.
That is, when a bending force acts on the pipe article of the present invention, as shown in Fig. 4, the pipe article appears a good flexibility because the strands in the glass fiber sheet is parallel arranged with the longitudinal direction of the pipe.
Particularly, the front portion of the tip member for a fishing rod s made of the glass fiber sheet(lOO) having strands in the same direction, thereby providing the highly improved flexibility and straightening property. Therefore, the fishing lovers can enjoy the fishing with the best feeling to the bite and can do dropping correctly at a long distance.
According to the present invention, a pipe like article is provided which is formed by repeatedly winding a glass fiber sheet with strands arranged in the same direction and a carbon fiber sheet with strands arranged in both directions.

Claims

CLAIMSWhat is claimed is:
1. A glass fiber sheet for a pipe like article comprising a scrim base(120) having a thickness of 0.05mm and less, a plurality of glass fiber strands(llθ) arranged in the same direction on the scrim base(120), said scrim base(120) and glass fiber strands(llθ) thereon being impregnated with thermosetting resin.
2. A pipe like article comprising a glass fiber sheet(lOO) with strands(UO) arranged in the same direction and a carbon fiber sheet(200) with strands arranged in both directions, said glass fiber sheet(lOO) and carbon sheet(200) being wound to be formed in the shape of a pipe.
3. A tip member for a fishing rod comprising a front portion in a relatively decreased diameter on which a glass fiber sheet(lOO) with strands(llθ) in the same direction wound in a multiple layer and a rear portion in a relatively increased diameter on which a carbon sheet(200) with strands in both directions is wound in a multiple layer, to have a tapered pipe shape.
PCT/KR1999/000084 1999-01-11 1999-02-25 Glass fiber sheet and pipe like article using the same WO2000041880A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019990000464A KR100282965B1 (en) 1999-01-11 1999-01-11 Pipe like article using a one side direction glassfiber sheet
KR1999/464 1999-01-11

Publications (1)

Publication Number Publication Date
WO2000041880A1 true WO2000041880A1 (en) 2000-07-20

Family

ID=19570983

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1999/000084 WO2000041880A1 (en) 1999-01-11 1999-02-25 Glass fiber sheet and pipe like article using the same

Country Status (2)

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KR (1) KR100282965B1 (en)
WO (1) WO2000041880A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659003A1 (en) * 1976-04-12 1977-10-20 Shakespeare Co FLEXIBLE AND ELASTIC FISHING ROD DESIGNED AS A HOLLOW BODY
US4083140A (en) * 1975-08-13 1978-04-11 Exxon Research & Engineering Co. Fishing rod ferrule
US4133708A (en) * 1975-09-25 1979-01-09 Tomotoshi Tokuno Method for producing a fishing-rod
US4759147A (en) * 1985-12-03 1988-07-26 Reglass S.P.A. Multi-layer structure to accomplish very light-in-weight and tough tubular elements particularly adapted for the construction of fishing rods
US4821447A (en) * 1987-05-11 1989-04-18 Ryobi Ltd. Fishing rod and method of manufacturing same
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KR19990037744A (en) 1999-05-25

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