| 摘要 |
A golf club comprises a shaft formed of a plurality of co-axially disposed tubes connected to one another at a stabilizing joint or joints. Shaft has an upper section forming a grip and a lower section connected to club head. Tubes are parallel-sided and of differing cross-sectional sizes. The lower section is constituted by the tube of smallest cross section. The relative diameters of the tubes are such that the upper end of a tube is receivable within the bore at the lower end of its neighbor. Preferably, the material from which tubes are formed is selected from: (a) a titanium alloy; (b) a combination of (i) an extruded polymeric matrix reinforced with continuous, straight, pre-stressed and tensioned carbon fibers, the fibers being aligned with the longitudinal axis of shaft, and (ii) continuous filament windings that are also pre-stressed, tensioned and unbroken, or (c) a combination of materials from categories (a) and (b).
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