| 摘要 |
<p>A fastener system (10) that includes a fastener with a longitudinally extending shank (12) with a head (18) on one end thereof, where the head has a first pattern (20) formed thereon, and a cap (16) that is configured and arranged to be scated upon the head (18), where the cap includes a second pattern (28) formed on an interior surface thereof. This second pattern (28) is adapted to cooperate with the first pattern (20), whereby rotational forces applied to the cap are transferred to the fastener via contact between the first and second patterns. Furthermore, the second pattern (28) is defined by a closed figure that includes a plurality of outermost circumferential points (42) located along a circle (44), with adjacent points being separated by a pattern distance (46) that is greater than the length of an imaginary straight line drawn directly between the adjacent points (42). Several different configurations are available for the second pattern. Some examples of such configurations include generally star-shaped patterns, generally cross-shaped patterns, and other patterns also formed by a plurality of radially extending branches. Additionally, the second pattern (28) may also be defined by a plurality of closed figures, such as a combination of generally pie-shaped components (58).</p> |
