| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid which allows for easy setting of a magnetic resistance depending on the attraction characteristics.SOLUTION: A solenoid has a bobbin 4 around which an exciting coil 3 for forming a magnetic field upon electrification is wound, a movable element 5 provided in the bobbin 4, and moving along the axis X of the bobbin 4 by the magnetic field formed by the exciting coil 3, a core 6b coaxial with the movable element 5 in the bobbin 4, arranged contiguously to the movable element 5 in the direction of the axis X, and conducting the magnetic lines of force, and a cylindrical member 17 provided on the inner peripheral side of the bobbin 4 and the outer peripheral side of the core 6b, and including an extension 16 extending toward the movable element 5.SELECTED DRAWING: Figure 1 |
