| 摘要 |
PURPOSE:To enhance the maneuverability and stability by fitting a globe, supported by a spring, in a groove which is provided at the valve element of a spool valve. CONSTITUTION:Input shaft 5 is coupled with a tortion bar 10 using pins B, C, and two grooves 5a, symmetrically to the left and right and intersecting perpendicularly to the axis, are arranged at the foremost part of the input shaft 5. The axis of input shaft 5 is located on the plane including axes of these two V- shaped grooves 5a, and a steel ball 7 is put in detention with each groove 5a, where a spring 6 etc. applies a vertical load always toward the grooves 5a. The steel ball 7 is so conditioned by a spring load etc. as to contact both surfaces P, P' of the grooves 5a at the neutral position with valve. Accordingly, the maneuverability and stability can be enhanced. |
