| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a railroad crossing gate capable of precisely preventing rain water or the like from entering inside an upper case. <P>SOLUTION: The railroad crossing gate 1 provided at a crossing gate point of a railroad comprises an upper case 4 having an opening 4a at an upper end, a motor 3 housed in the upper case 4, a barrier pipe rotary shaft 7 protruding from a front face of the upper case 4 and rotating around a shaft by rotary-driving the motor 3, a barrier pipe B mounted to a tip portion of the barrier pipe rotary shaft 7, a head cover 11 closing the opening 4a of the upper case 4, and a packing P arranged between the upper case 4 and the head cover 11. Joints 9, 12 extending in an approximate horizontal direction are provided on respective side faces of the upper case 4 and the head cover 11. When the joint 9 contacts the joint 12 from an upward and downward direction, a gap G narrower than the thickness of the packing P is formed between the upper case 4 and the head cover 11, and the packing P is provided at a portion of the gap G. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
