| 摘要 |
If a steering damper is fixed to a top bridge, since the steering damper is comparatively heavy and the top bridge is on the steering side, steering inertia increases. An arrangement structure of the steering damper which does not greatly influence the steering inertia has been realized. A rotatable partition wall is provided in a hydraulic chamber of a steering damper to partition the inside into a right hydraulic chamber and a left hydraulic chamber. A shaft provided at one end of the partition wall is integrally and rotatably coupled to a coaxial steering shaft. Both hydraulic chambers are in communication with each other by a liquid passage. A control valve is provided in an intermediate part of the passage and is switched to a lock or a throttle thereby a damping force zero status or a damping force generation status is set. The switching is controlled by a control device in correspondence with the ON/OFF of a main switch. Furthermore, the throttle makes a cross-sectional area of the passage variable, and this control is also made by the control device based on a turning angle speed of the steering shaft. A comparatively heavy part such as a main body forming a casing of the steering damper is fixed to a vehicle body front part supporting the steering shaft, and the comparatively light-weight partition wall, on the steering side.
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