| 摘要 |
PROBLEM TO BE SOLVED: To provide a weight to be mounted on a bat for an effective and practical bat swing practice and for free batting with the weight mounted on the bat. SOLUTION: A lead plate is enclosed in a belt-like bag as the weight, and a hook and loop fastener type tightening band is attached to the bag. Further, a non-slip mechanism is applied to the rear surface of the bag of the weight or a sponge material is enclosed in the bag. In addition, the bag of the weight and a dropping preventive ring are connected with a connecting material. The surface of the weight is formed as a flat plane, so that the free batting is possible with the weight mounted on the bat. |
