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    • 5. 发明授权
    • Handle attachment for bowling ball
    • 处理保龄球的附件
    • US4258947A
    • 1981-03-31
    • US54977
    • 1979-07-05
    • Donald C. ThompsonRichard L. CrossJimmie Rose
    • Donald C. ThompsonRichard L. CrossJimmie Rose
    • A63B37/00A63B43/02
    • A63B43/02A63B37/0001
    • A handle attachment for a bowling ball includes a hand grip, a shank extending from the grip and a radially expansible plug extending from the shank. A mechanism for changing the length and therefore the radius of the plug between a locking position and a release position is controllable at the grip in a way that locks the mechanism in the locking position when the grip is grasped by the hand as in carrying a bowling ball. In the release position, the plug is inserted into and withdrawn from the thumb hole of the ball, and in the locking position the plug securely engages the sidewall defining the thumb hole thereby attaching the handle attachment securely to the bowling ball.
    • 用于保龄球的手柄附件包括手柄,从手柄延伸的柄和从柄延伸的径向可膨胀的塞子。 用于在锁定位置和释放位置之间改变插头的长度以及因此改变插头的半径的机构可以在握把处以可控制的方式将锁定机构锁定在锁定位置,当握持器握住手柄时,如同携带保龄球 球。 在释放位置,插头被插入并从球的拇指孔中取出,并且在锁定位置,插头牢固地接合限定拇指孔的侧壁,从而将把手附件牢固地附接到保龄球。