Golf club head and manufacturing method therefor

1. A manufacturing method for a golf club head, comprising steps of:

forming a plurality of through holes on a crown plate, a sole plate and a side plate of a main body blank;

preparing a plurality of carbon-fiber plates by carbon-fiber fabrics;

inserting a plurality of carbon-fiber reinforcing members and an air-inflating bag into the main body blank;

adhering the carbon-fiber plates to the corresponding through holes;

inserting the main body blank into a first die assembly and then expanding the air-inflating bag to thereby support the carbon-fiber plates and the reinforcing members; and

drawing out the flat air-inflating bag and precise processing the finished main body to accomplish an end product.

2. The manufacturing method as defined in claim 1 , wherein the carbon-fiber plates includes a carbon-fiber crown plate, a carbon-fiber sole plate, and a carbon-fiber side plate.

3. The manufacturing method as defined in claim 1 , wherein each of the carbon-fiber plates is consisted of a plurality of carbon-fiber fabric sheets, which are interlaced and piled up each other in a second die assembly.

4. The manufacturing method as defined in claim 1 , wherein the carbon-fiber plates are adhered to the through holes by epoxy.

5. The manufacturing method as defined in claim 1 , wherein the through holes are formed with annular recessed flanges adapted to connected with the carbon-fiber plates.

6. The manufacturing method as defined in claim 5 , wherein the carbon-fiber reinforcing members are consisted of ring carbon-fiber sheets, which are interlaced and piled up each other; the carbon-fiber reinforcing members are adapted to adhere to an inner surface of the annular recessed flanges.

7. The manufacturing method as defined in claim 1 further comprising a weight adhered to one of the through holes provided on a bottom of the main body blank.

8. The manufacturing method as defined in claim 1 further comprising an opening formed on the first die assembly aligned with one of the through holes; when the air-inflating bag is inserted into the first die assembly, the opening allows passage of an air pipe connecting to the air-inflating bag.

9. The manufacturing method as defined in claim 8 further comprising a sealing plate adapted to seal said through hole, the sealing plate including an outer surface on which to provide with characters and patterns.

10. The manufacturing method as defined in claim 1 further comprising a step of hardening the carbon-fiber reinforcing members subsequent to the air-inflating bag is expanding to support the carbon-fiber plates and the carbon-fiber reinforcing members.