| 摘要 |
<p>PROBLEM TO BE SOLVED: To rapidly break a pad cover along a burst line in rapid deceleration of a vehicle without damaging a molding property and design of the pad cover in mounting a plate body such as a mark to the pad cover. SOLUTION: A mark 40 is mounted on a substantially central part of the pad cover 18, and a semicircular second burst line part 46 is installed on the rear side of the mark 40. The second burst line part 46 includes mutually arranged thin parts 56 and break parts 58, and is more brittle than the first burst line part 44. Therefore, the entire length of a burst line part 42 is shorter, a break load is lower, and break propagating speed is higher compared with a conventional structure in which the second burst line part passes outside the mark.</p> |
