| 摘要 |
PURPOSE:To prevent dead angle accident at turning left or the like by a method wherein descending members, which descend by means of signal, are provided near respective car wheel. CONSTITUTION:The descending member 5 itself is kept at an upper-holding state with an engaging body 11 operated by electric signal. When the member 5 comes in contact with person or other object, electric signal is produced to release the upper- holding of the descending member 5, getting the member 5 to fall to the ground or nearly to the ground by means of gravity or a spring 16. Consequently, person or other object is prevented from being run over by car wheels 2 and 3. Moreover the electric signal is produced in contact with a moved part 9 which is interlocked with a switch 7. |
