CN2417996Y - Improved structure of fiber composite material pipe piece - Google Patents

Abstract

The utility model relates to an improved structure of a fibre composite material pipe piece, which can be used in golf rods, fishing rods or skiing rods. The utility model comprises an inner ring layer which is in a long pipe shape. The inner ring layer is formed by winding molding of fibre composite material bundles, the external side of the inner ring layer is coated with anouter layer which is formed by package molding of one fibre composite material sheet at least, the fibre directions in each sheet and the long axis direction of the pipe-shaped outer ring layer are in a predetermined angle, and parallel long axis directions are generally included. Thus, the pipe piece of the utility model has the balanced uniform hardness of circumference by the inner ring layer, and can reinforce the flex resistant intensity on the whole body or a partial part of the pipe by the outer ring layer.

Description

The structure-improved of fibrous composite pipe fitting

The utility model is relevant with composite product, particularly about a kind of structure-improved of fibrous composite pipe fitting.

Pliability slender rod pieces such as golf club now, fishing rod or ski stick.It mostly is the tube made from the fibrous composite of carbon fiber and so on.With the method for fibrous composite moulding pipe fitting, reach " filament twines method (filamentwinding method) " two kinds nothing more than " lamella wraparound method (sheet-rolling method) " at present.So-called lamella wraparound method, promptly be the fiber sheet of several pieces pre-soaked resins to be rolled up to cover to wrap be stacked on the mandrel, and make the fiber orientation of each lamella and mandrel be various predetermined angulars, detach mandrel after heating is solid firmly and form pipe fitting, the advantage of this method is can the be free superimposed required fiber alignment structure that goes out, and be furnished with usually parallel long axis to fiber, so pipe fitting has preferable warp resistance intensity, shortcoming then is that each fiber sheet part that overlaps end to end when being rolled into tubulose can form a hardness higher " backbone (spine) ", and lamella and lamella also have many irregular congruent regions on arranging, make pipe fitting that the phenomenon of rigidity inequality be arranged; Twine method as for filament, be with fibre bundle (tow) at a predetermined angle spiral be wound on the mandrel, do not hold oppositely contrary around to forming fibrage in mandrel, detach mandrel after heating is solid firmly and form pipe fitting, this fado is accurately controlled the winding action of fiber with computer at present, so pipe fitting has the very uniformity of symmetrical equilibrium, then to be that fiber is general when twining arrive 45 with major axis to being 30 ° to shortcoming, at the most only can 15 °, can't have parallel long axis to fiber, so the flex stiffiness of pipe fitting is relatively poor, the fracture facts is arranged easily, Chang supplies intensity if mat twines the thick fibrage of effect, and then pipe fitting promptly can be heavier.In a word, the structure of two kinds of fibrous composite pipe fittings so far all has its scarce fraud, remains further to be improved.

Main purpose of the present utility model is promptly at the structure-improved that a kind of fibrous composite pipe fitting is provided, its have with the moulding of filament coiling method commonly use the better warp resistance intensity of pipe fitting, and do not have the shortcoming of the blocked up and preponderance of tube wall.

Take off purpose for before reaching, the structure-improved of the fibrous composite pipe fitting that the utility model provides, include an inner layer that is elongated tubular, this inner layer is to twine the method moulding by the fibre bundle of fibrous composite with filament, it is characterized in that, its outside is coated with outer layer, this outer layer be fiber sheet by at least one fibrous composite with the moulding of lamella wraparound method, and respectively the major axis of the fiber orientation of this fiber sheet and this tubulose inner layer to being predetermined angular.

Wherein this outer layer is the pipe shaft integral body that coats this tubulose inner layer.

Wherein constitute in the aforementioned fibers lamella of this outer layer, the major axis that the fiber orientation of at least one fiber sheet generally is parallel to this inner layer to.

Wherein constitute in the aforementioned fibers lamella of this outer layer be coated on outermost, the major axis that its fiber orientation generally is parallel to this tubulose inner layer to.

Wherein this fibrous composite pipe fitting is the axostylus axostyle that is applied to golf club, is the canalis spinalis shape.

Now after lifting graphic being described in more detail in of preferred embodiment cooperation, wherein:

Fig. 1 is the outside drawing that is applied to the utility model one preferred embodiment of golf axostylus axostyle; And

Fig. 2 is the cutaway view along 2-2 hatching line among Fig. 1.

The fibrous composite pipe fitting that the utility model provides can be applicable on the body of rod of golf club, fishing rod or ski stick etc., this preferred embodiment is the axostylus axostyle that is applied to golf club, see also Fig. 1, pipe fitting 10 of the present utility model is to be the canalis spinalis shape, its butt end is carefully held in order to engage a bar head 8 in order to engage a lever 6; See also Fig. 2, this pipe fitting 10 comprises an inner layer 20 in core, and this inner layer 20 is the cone pipe that length equates with pipe fitting 10, be by carbon fiber also other reinforcing fiber such as useable glass fiber or boron fibre with aforementioned " filament winding method " moulding; These tubulose inner layer 20 outsides have the tubulose outer layer 30 of a coating pipe shaft integral body, this outer layer 30 is that fiber sheet by predetermined number is with aforementioned " lamella wraparound method " moulding, be rolled into single fiber sheet 32 in this example, the fiber of this fiber sheet 32 34 trends are major axis of being parallel to pipe fitting 10 to; The fiber 34 of this outer layer 30 also is a carbon fiber in this example, but also can use the material that is different from inner layer 20.

The forming method of this tubulose inner layer 20 (filament winding method) has obstructed in background section slightly to be described, and is to commonly use skill and non-the utility model emphasis, holds and does not give unnecessary details.The moulding of this outer layer 30 then is that this fiber sheet 32 with pre-epoxy resin dipping is covered on the solid firmly tubulose inner layer 20, gives heating again it is incorporated on this inner layer 20 firmly admittedly.After outer layer 20 moulding, pipe fitting 10 surperficial getting are ground application again.

Fibrous composite pipe fitting 10 of the present utility model is with the moulding of filament coiling method because of the tubulose inner layer 20 as core wherein, so have the balanced consistent characteristic of the hardness of this kind pipe fitting, and along long axially extended fiber, pipe fitting 10 has splendid warp resistance intensity simultaneously by outer layer 20.Compare to and purely twine the pipe fitting of commonly using of method moulding with filament, the utility model because of have parallel long axis to fiber, so preferable flex stiffiness is arranged under identical wall thickness.And compare to the pure pipe fitting of commonly using with the moulding of lamella wraparound method, and the fiber sheet that the utility model uses is less, and is relatively also slighter because of the rigidity uneven phenomenon that the lamella overlapping is caused, and integral body still is the well-balanced structure of core.

Before mention, outer layer in the utility model also can form by the plural fiber sheet bag of two or three (or more than) is folded, and the fiber orientation of each fiber sheet is outside except parallel long axis, also can optionally be arranged to positive 45 °, negative 45 ° ... etc. equal angles, with the not enough point of reinforcement inner layer.If the fiber orientation parallel long axis is arranged, then make it be coated on outermost layer and can bring into play best efficiency in the fiber sheet to person (not limiting to have).

Technological thought of the present utility model is with lamella wraparound method at a lamella that coats the predetermined fiber orientation of tool on the body of filament coiling method moulding, use reinforcement body intensity (being mainly warp resistance intensity), also can only be coated on the local pipe shaft, promptly do the emphasis reinforcement, for example the position of golf axostylus axostyle and bar head handing-over at pipe fitting most probable rhegma place.

Claims (5)

1. the structure-improved of a fibrous composite pipe fitting, include an inner layer that is elongated tubular, this inner layer is to twine the method moulding by the fibre bundle of fibrous composite with filament, it is characterized in that, its outside is coated with outer layer, this outer layer be fiber sheet by at least one fibrous composite with the moulding of lamella wraparound method, and respectively the major axis of the fiber orientation of this fiber sheet and this tubulose inner layer to being predetermined angular.

2. the structure-improved of fibrous composite pipe fitting according to claim 1 is characterized in that, wherein this outer layer is the pipe shaft integral body that coats this tubulose inner layer.

3. the structure-improved of fibrous composite pipe fitting according to claim 1 and 2 is characterized in that, wherein constitute in the aforementioned fibers lamella of this outer layer, the major axis that the fiber orientation of at least one fiber sheet generally is parallel to this inner layer to.

4. the structure-improved of fibrous composite pipe fitting according to claim 3 is characterized in that, wherein constitute in the aforementioned fibers lamella of this outer layer be coated on outermost, the major axis that its fiber orientation generally is parallel to this tubulose inner layer to.

5. the structure-improved of fibrous composite pipe fitting according to claim 1 is characterized in that, wherein this fibrous composite pipe fitting is the axostylus axostyle that is applied to golf club, is the canalis spinalis shape.

Images