Operating device and circuit breaker
AssigneeMitsubishi Electric Corporation
InventorsShuichi Tanigaki, Daisuke Fujita
Life of this patent
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Abstract
An operating device includes: a lever rotatable about a rotating axis; a first torsion bar extending in a first direction along the rotating axis; a second torsion bar provided inside the first torsion bar, extending along the rotating axis, coupled to the first torsion bar at a portion located farther in the first direction than the lever, and extending from the portion of coupling with the first torsion bar toward a second direction opposite to the first direction beyond the lever; and a third torsion bar surrounding the second torsion bar, having a tubular shape, coupled to the second torsion bar at a portion located farther in the second direction than the lever, and extending from the portion of coupling with the second torsion bar in the first direction.
Claims15
An operating device comprising:
- a lever rotatable about a rotating axis;
- a first torsion bar coupled to the lever, having a tubular shape including the rotating axis as its central axis, and extending in a first direction along the rotating axis;
- a second torsion bar provided inside the first torsion bar, extending along the rotating axis, coupled to the first torsion bar at a portion located farther in the first direction than the lever, and extending from the portion of coupling with the first torsion bar toward a second direction opposite to the first direction beyond the lever;
- and
- a third torsion bar surrounding the second torsion bar, having a tubular shape including the rotating axis as its center, coupled to the second torsion bar at a portion located farther in the second direction than the lever, and extending from the portion of coupling with the second torsion bar in the first direction, wherein
- rotation of the third torsion bar is restricted at its end located in the first direction.
Dependencies are inferred from the claim text.