| 摘要 |
1,135,728. Golf clubs. W. J. VOIT RUBBER CORP. 10 May, 1967 [19 Dec., 1966], No. 21630/67. Heading A6D. A golf club comprises a core 11 having a cutaway face portion 14, a face plate 17 mounted within, the cutaway face portion, a sole plate 28 mounted to the bottom portion of the core, means mounted to the core to provide a predetermined swingweight 26, a shaft 43 mounted to the core at one end thereof and an outer plastic layer 37 surrounding the core and filling the cutaway portion to provide a durable surface for the club. As shown core 11 is machined to include a sole plate register hole 12 on the bottom portion 13 thereof and a cutaway portion or notch 14 on the face portion 16 thereof in which is mounted a rear face plate 17 having a base portion 18, a pair of side walls 19 which engage the walls 21 of the notch 14 and a projecting portion 22 including an aperture 23 extending therethrough. The aperture 23 is filled with epoxy compound which bonds to the rear face 24 of the notch 14. A lead weight 26 is inserted or poured into the hole 12 and forced into the undercut portion 27. A sole plate 28 is mounted on the core 11, and its outer edges 33 and 34 are shaped to the contour of the respective front and rear edges of the bottom portion of the club 10 while projecting portions 35 and 36 provide a support for the mounting screws and to aid in anchoring the sole plate 28 within the plastic envelope 37. The front projecting portions 35 include enlarged flat forward faces 38 to resist the club impact and to increase the surface area in contact with the core 11 to facilitate the molding operation. Additional members 39 project at predetermined intervals from the sole plate 28 to aid in achieving a permanent bond with the outer plastic surface 37 and to prevent the molding pressure from forcing the spacer collars into the core 11. The threaded aperture 31 includes a cylindrical wall 41 which engages the sole plate register hole 12 and is designed to receive a predetermined adjustable swing weight plug 42. The plug 42 may be selected to provide the desired swing weight in combination with weight 26 without removing the sole plate as required in conventional woods. A shaft 43 having an end portion 44 with a plurality of depressions 46 is bonded within the shaft hole 47. The club head is encased within an injection molded envelope 37 of a plastic or thermo-plastic resin material such as the acrylonitrile-butadienestyrene polymers. |
