WEIGHT DROP TYPE PERFORMANCE TESTING MACHINE FOR FIBER REINFORCED PLASTIC PRODUCT AND REBOUND PERFORMANCE TEST METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To evaluate and compare performance such as rebound performance of a fiber-reinforced plastic product, such as a shaft formed of a carbon fiber reinforced plastic in golf clubs. ;SOLUTION: This testing machine 1 comprises a weight 2, a weight support body 3 for slidably supporting the weight 2 in a vertical direction so that the weight 2 can be return-moved from a prescribed height position to a position capable of dropping and return-movable to a prescribed height position, and a support base 4 supporting a carbon fiber reinforced product (shaft 9) at the dropping position of the weight 2. Then, performance of the shaft 9 is tested by dropping the weight 2 to collide with the supported shaft 9.;COPYRIGHT: (C)2000,JPO