| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent allophone due to a gap of a rod radial direction from being generated in a rear wheel steering device for a vehicle, and to reduce abrasion of components. <P>SOLUTION: The rear wheel steering device for a vehicle includes: a housing (10a, 10b) mounted to a vehicle body; a rod 21 which is held not to be rotated to the housing and to be movable in a shaft direction and which is connected to right and left rear wheels of the vehicle on both ends thereof; and a conversion mechanism 40 which is disposed between the rod and the housing to convert a rotational driving force of a rotational driving means into a shaft direction driving force of the rod 21. On both right and left ends of the housing (10a, 10b), there are disposed cylindrical bushes 51, 52 which are slid to be engaged with the outer periphery of the rod 21 to support the rod 21 in such a manner that the same is moved in a shaft direction, and which have such a configuration that: the rod support rigidity of one bush 51 is set to be lower than that of the other bush 52; an elastic body 51b is elastically changed in the rod radial direction in the bush 51; and the rod 21 is tilted to an inner periphery protrusion 52a in the other bush 52. <P>COPYRIGHT: (C)2012,JPO&INPIT |
