| 摘要 |
The impact-face 4 of a putter-head 1 has horizontal ridges 6,16 bonded to, or embedded in, an elastomeric substrate 7,17 of lesser hardness than the ridges, resulting in an enlarged impact footprint with enhanced rebound characteristic. The substrate 7 may have regions 8-10 of differing resilience, or the ridges 6 may vary in stiffness along their lengths, to provide greater rebound for off-centre impacts. Ridges 22 may be formed by a thin corrugated shim 20 moulded or bonded to an elastomeric substrate 21 with piercings 24 of the shim to reduce stiffness centrally. A sheet 25 with ridges 26-28 of differing configurations, or wires 33 covered by a moulded layer 32 may also be used for the impact face. Optionally the ridge-elements are of metal, hard polymer or fibre-containing composite material. |
