| 摘要 |
An improved golf driver club head wherein each driver club head has a tensioning device, which places the peripheral/outer structure of the club head in compression; thereby, resulting in a stronger, more rigid club head structure. In the preferred embodiment, the tensioning device comprises an elongated cylindrical member having respective end members. The top and bottom surfaces of the golf club head are each provided with a cylindrical depression or recess and an aperture or passage at the lower end of the depression. The passages are just large enough to accommodate the tensioning device, but are too small to pass the respective end members. During club head manufacture, the length of the device is selected to apply a compressive force between the head surfaces. Fine adjustment is accommodated by a threaded end member. The actual compression force may be selected to yield the best performance depending on the geometry, structure and material of the club head.
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