Golf club and shaft

摘要

The present invention provides a golf club shaft. The shaft is made of a fiber reinforced resin. When a position 100 mm apart from a distal end of the shaft is represented by P1, a position 200 mm apart by P2, a position 500 mm apart by P3, and a position 1,000 mm apart by P4, thicknesses at the positions are defined as P1: not more than 1.0 mm, P2: not more than 0.9 mm, P3: not more than 0.6 mm and P4: not more than 0.6 mm. Each section between the positions has a thickness larger than a thickness transition obtained by connecting the thicknesses at the positions by a straight line. The shaft includes a plurality of prepregs which include first prepregs containing carbon fibers and a second prepreg containing a high specific gravity material.

主权项

1. A shaft for a golf club, which is made of a fiber reinforced resin, wherein
when a position 100 mm apart from a distal end of the shaft is represented by P1, a position 200 mm apart by P2, a position 500 mm apart by P3, and a position 1,000 mm apart by P4, thicknesses at the positions are defined as P1: not more than 1.0 mm P2: not more than 0.9 mm P3: not more than 0.6 mm P4: not more than 0.6 mm each section between the positions has a thickness larger than a thickness transition obtained by connecting the thicknesses at the positions by a straight line, the shaft comprises a plurality of prepregs, said plurality of prepregs include a plurality of first prepregs and at least one second prepreg, said plurality of first prepregs comprise prepregs containing carbon fibers, said second prepreg comprises a prepreg containing a material having a specific gravity higher than the specific gravity of the prepregs containing carbon fibers, and a weight of the shaft is 35 g (inclusive) to 45 g (inclusive).