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US 11,114,256 B2Granted
Switching apparatus and associated switch
AssigneeABB Schweiz AG
InventorsZeming Lin, Aki Suutarinen
Life of this patent
Estimating the term…
Abstract
Implementations of the subject matter described herein provide a switching apparatus. The switching apparatus includes: a handle shaft coupled to a handle and arranged rotatable in a circumferential direction in response to an operation to the handle; and a locking plate arranged movable in a first direction in association with a rotation of the handle shaft. The handle shaft and the locking plate are operable to limit the rotation of the handle shaft when the handle shaft arrives at an off position of the switching apparatus.
Claims14
A switching apparatus, comprising:
- a handle shaft coupled to a handle and arranged rotatable in a circumferential direction in response to an operation to the handle;
- a locking plate arranged movable in a first direction in association with a rotation of the handle shaft, and
- a hook coupled to the locking plate, wherein the hook includes an end oriented in a longitudinal direction, the end passing through a hole on the locking plate,
- wherein the handle shaft and the locking plate are operable to limit the rotation of the handle shaft, when the handle shaft arrives at an off position of the switching apparatus,
- wherein the handle shaft includes a first pin, and the locking plate includes a first slot,
- wherein the first pin is received by the first slot when the handle shaft arrives at the off position to prevent a further rotation of the first pin in a positive circumferential direction,
- wherein the handle shaft includes a cam that is separated from the first pin by a first distance in the circumferential direction and by a second distance in the longitudinal direction, and
- wherein the cam is in non-contact with the end of the hook when the first pin is received by the first slot.
5 more elements
A switch, comprising a switching apparatus comprising:
- a handle shaft coupled to a handle and arranged rotatable in a circumferential direction in response to an operation to the handle;
- a locking plate arranged movable in a first direction in association with a rotation of the handle shaft, and
- a hook coupled to the locking plate, wherein the hook includes an end oriented in a longitudinal direction, the end passing through a hole on the locking plate,
- wherein the handle shaft and the locking plate are operable to limit the rotation of the handle shaft, when the handle shaft arrives at an off position of the switching apparatus,
- wherein the handle shaft includes a first pin, and the locking plate includes a first slot,
- wherein the first pin is received by the first slot when the handle shaft arrives at the off position to prevent a further rotation of the first pin in a positive circumferential direction,
- wherein the handle shaft includes a cam that is separated from the first pin by a first distance in the circumferential direction and by a second distance in the longitudinal direction, and
- wherein the cam is in non-contact with the end of the hook when the first pin is received by the first slot.
5 more elements
Dependencies are inferred from the claim text.