| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crosstie having a relatively simple structure, sufficient durability and strength, and a connection mechanism. <P>SOLUTION: On a crosstie body 2, crosstie side joint parts 5 are formed which are opened at their upper sides into a grooved shape. The plurality of crosstie bodies 2 are connected to each other via connection members 3. In this case, a first top surface part 7 and a second top surface part 8 different in height are provided on the top surface of the crosstie side joint part 5, and a projection part 18 as a part of the connection member 3 having a relatively small cross section and a center part 17 as a part thereof having a relatively large cross section are placed thereon, respectively. <P>COPYRIGHT: (C)2013,JPO&INPIT |
