Rotary knob for electrical system
AssigneeSchneider Electric Industries SAS
InventorsHugues Da Dalt, Patrice Thizon, Bertrand Fruchard
Life of this patent
Estimating the term…
Abstract
A rotary knob for an electrical system includes a body containing a rotary maneuvering member which actuates a cam-driving part and bears one or more electrical units. A cup is defined between an outer cylindrical flange of the body and an inner cylindrical sleeve, and contains a spring either of a helical type for urging a sliding ring separate from the driving part, or of a torsion type to return the maneuvering member. The ring provides a sensitivity function. The cylindrical sleeve defines in a central opening thereof a centering seat of the shank of the maneuvering member.
Claims10
A rotary knob for an electrical system, comprising:
- a body;
- a rotary maneuvering member mounted on the body in a fluid-tight manner;
- and
- a driving part housed in the body and provided with cam surfaces on a circumference thereof, wherein
- the maneuvering member includes a shank for moving the driving part,
- the body supports at least one electrical block being switchable in response to a rotation of the maneuvering member via at least one axially moving slider disposed around the cam surfaces of the driving part,
- the maneuvering member is mounted in a rotary manner about an axis with a limited angular movement, in order to assume at least two functional positions, and is locked in rotation with the driving part provided with the cam surfaces for moving the sliders,
- the body of the knob includes a hollow part provided with an external cylindrical flange, an internal cylindrical sleeve and a cup defined between the flange and the sleeve,
- the cup houses either a helical spring acting on a sensitivity ring separate from the driving part and movable in translation or a torsion spring acting on the maneuvering member, and
- the cylindrical sleeve defines a central opening with which a centering seat of the shank of the maneuvering member cooperates.
A rotary knob for an electrical system, comprising:
- a body including a hollow part provided with an external cylindrical flange, an internal cylindrical sleeve and a cup defined between the flange and the sleeve;
- a driving part housed in the body;
- and
- a rotary maneuvering member mounted on the body in a fluid-tight manner, the maneuvering member including a shank for moving the driving part, wherein
- the body supports at least one electrical block being switchable in response to a rotation of the maneuvering member via at least one axially moving slider,
- the maneuvering member is mounted in a rotary manner about an axis with a limited angular movement to assume at least two functional positions, and is locked in rotation with the driving part provided with cam surfaces for moving the sliders,
- the cup houses either a helical spring acting on a sensitivity ring separate from the driving part and movable in translation or a torsion spring acting on the maneuvering member,
- the cylindrical sleeve defines a central opening with which a centering seat of the shank of the maneuvering member cooperates, and
- when the cup houses the sensitivity ring and a compression spring, the sensitivity ring is separate from the driving part, coaxial with the maneuvering member, movable in translation, has a diameter corresponding to a diameter of the cup, cooperates with the maneuvering member with cam portions provided on respective peripheries thereof, and is provided with notches corresponding to the functional positions.
Dependencies are inferred from the claim text.