| 摘要 |
A blocking sled designed for the development and practice of football pass blocking techniques having a base with an elongated arm pivoted thereto. Operatively connected between the arm and the base is a piston arrangement in which the piston rod supports a compressible spring so that movement of the arm towards a 90 DEG angle with respect to the base is resisted. In use, a player generally stands on either side of the arm and strikes with the palms of his hands an impacting surface integral with the arm, thus causing the arm to move about its pivot through a 90 DEG angle with respect to the base.
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