CN102166409A

CN102166409A - Carbon fiber golf club shaft and formation method

Info

Publication number: CN102166409A
Application number: CN2011101335850A
Authority: CN
Inventors: 叶金吉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-23
Filing date: 2011-05-23
Publication date: 2011-08-31

Abstract

The invention discloses a carbon fiber golf club shaft. A center hole of the carbon fiber golf club shaft is a circular hole, and a raised line is formed on the inner wall of the center hole. The invention also discloses a formation method of the carbon fiber golf club shaft, which comprises the following steps of: firstly, selecting a round mandrel, and applying a parting agent and resin are arranged on the surface of the mandrel, wherein the surface of the mandrel is provided with a groove for formation of the raised line; secondly, placing a carbon fiber strip in the groove of the mandrel; thirdly, coating a carbon fiber material on the mandrel, wrapping one layer of biaxially oriented polypropylene (BOPP) film on the carbon fiber material, and putting the mandrel in a mold cavity; fourthly, heating to 130 DEG C to cure carbon fiber; and finally, demolding, extracting the mandrel, removing the BOPP film, carrying out surface grinding, inspecting a blank product, and painting the blank product to manufacture the carbon fiber golf club shaft. In the invention, the raised line formed on the inner wall of the center hole of the club shaft plays the role of a reinforcing rib, so that the bending resistance and the torsion resistance of the club shaft are improved, and the batting effect is increased.

Description

A kind of carbon fiber golf ball bar body and forming method

Technical field

The present invention relates to the technical field of golf clubs, particularly a kind of carbon fiber golf ball bar body and forming method thereof.

Background technology

Golf clubs is made up of shaft, bulb and handle.In the prior art, shaft adopts carbon fiber to make usually.Carbon fibre material is coated on the plug, puts into the die cavity of mould again, carbon fiber is solidified, take out the coring rod after the demoulding again, promptly make the carbon fiber golf ball bar body through heating.Because plug is a round bar, and the round bar smooth surface is complete, so, the centre bore of the carbon fiber golf ball bar body of making is a circular hole, and shaft thickness is even, consistent, be assembled into golf clubs after, the anti-bending strength of shaft and torsional property are all relatively poor, balling effect is also relatively poor, is further improved really.

Summary of the invention

The purpose of this invention is to provide a kind of carbon fiber golf ball bar body and forming method thereof,, improve balling effect to improve the anti-bending strength and the torsional property of shaft.

In order to reach above-mentioned purpose, solution of the present invention is:

A kind of carbon fiber golf ball bar body, its centre bore is a circular hole, forms raised line on the center bore inner wall.

Form three on the described center bore inner wall to six roots of sensation raised line.

Described raised line is tapered to small end from the big end of club.

A kind of forming method of carbon fiber golf ball bar body, step is as follows:

Select round mandrel earlier, mandrel surface has the groove that is used to form raised line, off-shape agent and resin on the mandrel surface;

Then, in the groove of plug, put into carbon-fibre strips;

Again carbon fibre material is coated on the plug, and winding one deck BOPP film is a bidirectional stretching polypropylene film on carbon fibre material, puts into the die cavity of mould;

Then, 130 ℃ of heating are solidified carbon fiber;

At last, the demoulding, take out the coring rod, take off the BOPP film, surface grinding is handled, the blank product examine, and japanning is promptly made the carbon fiber golf ball bar body.

After adopting such scheme, the present invention is because form raised line on the inwall of shaft centre bore, and this raised line plays a part reinforcement, makes the anti-bending strength of shaft and torsional property improve, thereby has improved balling effect.

Description of drawings

Fig. 1 is the three-dimensional structure diagram of product of the present invention;

Fig. 2 is the sectional view of product of the present invention;

Fig. 3 is the three-dimensional exploded view of mould of the present invention;

Fig. 4 is the schematic diagram of product machine-shaping of the present invention.

Label declaration

Raised line 1 plug 2 grooves 21

Patrix 3 counterdies 4 carbon-fibre strips 5

Carbon fibre material 6 BOPP films 7.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the present invention is further described.

Referring to illustrated in figures 1 and 2, a kind of carbon fiber golf ball bar body that the present invention discloses, its centre bore is a circular hole, forms raised line 1 on the center bore inner wall.The radical of raised line 1 is not limit, and is advisable to the six roots of sensation with three, and this embodiment has three raised lines 1.Raised line 1 is tapered to small end from the big end of club.

The forming method of carbon fiber golf ball bar body of the present invention is as follows, cooperates Fig. 3 and shown in Figure 4:

Select round mandrel 2 earlier, plug 2 surfaces have the groove 21 that is used to form raised line 1; Off-shape agent and resin on the mandrel surface;

Then, in the groove 21 of plug 2, put into carbon-fibre strips 5;

Again carbon fibre material 6 is coated on the plug 2, and winding one deck BOPP film 7 is a bidirectional stretching polypropylene film on carbon fibre material 6, afterwards, puts into the die cavity that patrix 3 and counterdie 4 form together;

Then, heating is solidified carbon fiber under 130 ℃, and carbon-fibre strips 5 and carbon fibre material 6 merge;

At last, coring rod 2 is taken out in the demoulding, takes off BOPP film 7, the carbon fiber that is coated on the plug 2 solidify to form shaft, and the carbon-fibre strips in the groove 21 solidify to form raised line 1, and surface grinding is handled, the blank product examine, japanning is promptly finished carbon fiber golf ball bar body of the present invention thus.

The present invention plays a part reinforcement at the raised line 1 that the shaft inwall forms, and makes the anti-bending strength of shaft and torsional property improve, thereby has improved balling effect.With different angles and bulb winding, make raised line 1 be positioned at the diverse location of bulb shaft, can be at different balling effects.

The foregoing description and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation or modification of doing.

Claims

1. carbon fiber golf ball bar body, it is characterized in that: centre bore is a circular hole, forms raised line on the center bore inner wall.

2. a kind of carbon fiber golf ball bar body as claimed in claim 1 is characterized in that: form three on the described center bore inner wall to six roots of sensation raised line.

3. a kind of carbon fiber golf ball bar body as claimed in claim 1 is characterized in that: described raised line is tapered to small end from the big end of club.

4. the forming method of a carbon fiber golf ball bar body is characterized in that step is as follows:

Then, in the groove of plug, put into carbon-fibre strips;

Then, heating is solidified carbon fiber under 130 ℃;