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1. 发明申请

WO9951310A3 BASEBALL BAT 审中-公开
标题翻译：棒球棒
公开(公告)号：WO9951310A3
公开(公告)日：2000-01-06
申请号：PCT/US9907247
申请日：1999-04-01
申请人： ACTIVE CONTROL EXPERTS INC , SPANGLER RONALD , GILBERT DAVID , PRESTIA CARL , BIANCHINI EMANUELE , LAZARUS B KENNETH , MOORE JEFFREY W , JACQUES ROBERT N , ALLEN JONATHAN C , RUSSO FARLA M
发明人： SPANGLER RONALD , GILBERT DAVID , PRESTIA CARL , BIANCHINI EMANUELE , LAZARUS B KENNETH , MOORE JEFFREY W , JACQUES ROBERT N , ALLEN JONATHAN C , RUSSO FARLA M
IPC分类号： A63B53/14 , A63B49/08 , A63B53/00 , A63B59/00 , A63C5/00 , A63C5/075
CPC分类号： A63C5/075 , A63B53/00 , A63B60/54 , A63B2208/12
摘要： A baseball bat includes an electroactive assembly attached near the handle and electrically tuned to capture energy from several modes with high efficiency. More generally, a sports implement includes an electroactive element, such as a piezoceramic sheet attached to the implement, and a circuit attached to the electroactive element. The circuit may be a shunt, or may include processing such as amplification and phase control to apply a driving signal which may compensate for strain sensed in the implement, or may simply alter the stiffness to affect performance. In a ski, the electroactive element is located near to the root in a region of high strain to apply damping, and the element captures between about one and five percent of the strain energy of the ski. The region of high strain may be found by modeling mechanics of the sports implement, or may be located by empirically mapping the strain distribution which occurs during use of the implement. In other embodiments, the electroactive elements may remove resonances, adapt performance to different situations, or enhance handling or comfort of the implement. Other embodiments include striking implements intended to hit a ball or object in play, such as mallets, golf clubs and tennis racquets, wherein the strain elements may alter the performance, feel or comfort of the implement. The electroactive elements may be configured in sets to capture energy in different modes, and/or along different directions.
摘要翻译：棒球棒包括附接在手柄附近的电活性组件，并被电调谐以从高效率的几种模式捕获能量。更一般地，运动器具包括电活性元件，例如附接到器具的压电陶瓷片，以及附接到电活性元件的电路。该电路可以是分流器，或者可以包括诸如放大和相位控制的处理以施加可以补偿在工具中感测到的应变的驱动信号，或者可以简单地改变刚度以影响性能。在滑雪板中，电动元件位于高应变区域的根部附近以施加阻尼，并且该元件捕获滑雪板的应变能量的大约百分之一至百分之五。高应变区域可以通过运动器具的建模机制找到，或者可以通过经验地映射在使用过程中发生的应变分布来定位。在其他实施例中，电活性元件可以去除谐振，适应不同情况的性能，或增强器具的处理或舒适度。其他实施例包括旨在击中游戏中的球或物体的击打工具，例如槌，高尔夫球杆和网球拍，其中应变元件可改变工具的性能，感觉或舒适性。电活性元件可以被配置成以不同模式和/或沿不同方向捕获能量。

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