| 摘要 |
Gripper element for sports shoes especially for track shoes for use on plastics tracks, in which the element is provided with a body having one or more sharp penetrating surfaces adjacent the free end of the element and one or more support surfaces at a greater angle to the axis of the element, the support surface or surfaces preventing undue penetration of the element into a plastics track. A preferred construction comprises a body having the shape of a half barrel in which are formed a plurality of grooves the depth of the grooves increasing gradually from the free end of the element to a point approximately at the centre of the length of the element and then gradually decreasing, the grooves forming the penetrating surfaces and the support surfaces. |
