| 摘要 |
A twin-type buffering or dampening pad is made from very tough rubber material. The pad is highly deformable and flexible and particularly suitable for installation between the foot board and the side frame of a running machine to absorb or dampen shock. The pad includes a pair of symmetrical cylinders integrally connected by a reinforced rib and arranged inverted relative to each other. Each of the cylinders has a flat surface at one end, which has a screw hole at the center and a convex or semi-spherical surface at the opposite end. The semi-spherical surface on one of the cylinders is flush at its apex with the adjacent flat surface on the other cylinder to simultaneously contact a face to efficiently absorb the shock produced from all directions by random stepping force when a user runs on the running machine.
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