Constant wall shaft with reinforced tip |
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| 申请号 | EP89850368.5 | 申请日 | 1989-10-25 | 公开(公告)号 | EP0370978A3 | 公开(公告)日 | 1991-01-16 |
| 申请人 | SANDVIK SPECIAL METALS CORP.; | 发明人 | Meredith, Steven E.; | ||||
| 摘要 | The present invention relates to a new method of making sporting products such as golf club shafts which is less susceptible to deformation. The shaft is given a constant wall thickness by exercising a three-step method including a first step of rotary-swaging a second step of sink-drawing and a third step of rotary-swaging. The shaft is thereby given constant wall thickness over a substantial length of the shaft. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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