| 摘要 |
PCT No. PCT/FR82/00137 Sec. 371 Date Apr. 19, 1983 Sec. 102(e) Date Apr. 19, 1983 PCT Filed Aug. 18, 1982 PCT Pub. No. WO83/00605 PCT Pub. Date Mar. 3, 1983.A protective motorcycle helmet is provided which has a collar or bead which is substantially concentric with the opening of the shell base of the motorcycle helmet. The perimeter of the collar is a constant and when the helmet is locked in a closed position can open at one point over its circumference in order to remove the helmet from a user and to place it on a user. At least one flexible element extends about the circumference of the helmet shell base. These flexible elements are connected to one end to the helmet shell and at the other end to the collar. This ensures connection between the two elements. |
