| 摘要 |
PROBLEM TO BE SOLVED: To provide a power steering device not requiring large force for unlocking.SOLUTION: A power steering device includes: a pair of operation stoppers 16, 17 abutted on a ball joint 60; a pair of first links 32, 42, the respective one ends of which are rotatably connected to the pair of operation stoppers 16, 17; a second link 36 to which the other ends of the pair of first links 32, 42 are rotatably connected and which are rotatably journaled to a housing; and a turning driver for driving the second link 36 to turn. First connection points 30, 43 of the first links 32, 42 to the operation stoppers 16, 17 and a pivotal supporting point 37 of the second link 36 to the housing 11 are disposed on a parallel line m parallel to the axial direction of an operation shaft 20, and the first links 32, 42 and the second link 36 are turned by a turning driver 55 so that second connection points 34, 39 of the second link 36 to the first links 32, 42 are located on the parallel line m, thereby abutting the operation stoppers 16, 17 on the ball joint 60. |
