| 发明名称 | Golf club, shaft insertion depth changing method and shaft replacing method | ||
| 摘要 | A golf club includes: a shaft; a head mounted on the leading end of the shaft; and a shaft case having a substantially cylindrical shape and fixed to the leading end of the shaft and inserted into a hosel formed in the head, the shaft case being fixed to the head by a bolt inserted from the sole side of the head, wherein the shaft case includes a small-diameter cylindrical portion on the leading end side thereof and a key portion formed on the outer peripheral surface of the small-diameter cylindrical portion, and multiple slits having different depths and engageable with the key portion are formed in the deep portion of the inside of the hosel, whereby, by changing the slits engageable with the key portion, the insertion depth of the shaft case into the hosel can be changed. | ||
| 申请公布号 | US9022879(B2) | 申请公布日期 | 2015.05.05 |
| 申请号 | US201313969775 | 申请日期 | 2013.08.19 |
| 申请人 | Bridgestone Sports Co., Ltd. | 发明人 | Sato Fumiaki |
| 分类号 | A63B53/02;A63B49/06 | 主分类号 | A63B53/02 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A golf club, comprising: a shaft; a head mounted on the leading end of the shaft; and a shaft case having a substantially cylindrical shape and fixed to the leading end of the shaft and inserted into a hosel formed in the head, the shaft case being fixed to the head by a bolt inserted from the sole side of the head, wherein the shaft case includes a small-diameter cylindrical portion on the leading end side thereof and a key portion formed on the outer peripheral surface of the small-diameter cylindrical portion, and multiple slits having different depths and engageable with the key portion are formed in the deep portion of the inside of the hosel, whereby, by changing the slits engageable with the key portion, the insertion depth of the shaft case into the hosel can be changed. | ||
| 地址 | Tokyo JP | ||