| 摘要 |
<p>PURPOSE:To eliminate location of a switching valve in an oil pressure pipe through which a power cylinder and a control valve are interconnected, by providing a control valve which is operated depending upon a power transmitted to a steering link mechanism for rear wheels. CONSTITUTION:A power cylinder C is integrally situated to an actuating rod 21, and a control valve 60, controlling feed and discharge of pressure oil to and from the power cylinder C, is situated in a power transmission system running between the power cylinder C and a converting mechanism 50. This causes the working direction of the power cylinder C to always coincide with that of the control valve 60 irrespective of operation of the converting mechanism 50. Through operation of the control valve 60 occasioned by rightward axial movement of the intermediate rod 24, the power cylinder C assists an actuating rod 21 rightward.</p> |
