In a rotation input device, a planetary carrier, connected to an operation knob, rotatably supports a planetary gear which meshes with an outer teeth row provided for a sun gear, to which an output shaft is secured, and also meshes with an inner teeth row provided for an outer gear. A plunger provid
In a rotation input device, a planetary carrier, connected to an operation knob, rotatably supports a planetary gear which meshes with an outer teeth row provided for a sun gear, to which an output shaft is secured, and also meshes with an inner teeth row provided for an outer gear. A plunger provided for the sun gear is in elastic contact with a recess cam provided for the outer gear. A solenoid unit prevents rotation of the outer gear in accordance with an output of a magnetic sensor which faces a magnet provided for the output shaft.
대표청구항▼
1. A rotation input device comprising: a rotary operation member;a first rotary member configured to rotate concentrically with and indirectly relative to the rotary operation member;rotation detecting means for detecting rotation of the first rotary member;a second rotary member configured to be ro
1. A rotation input device comprising: a rotary operation member;a first rotary member configured to rotate concentrically with and indirectly relative to the rotary operation member;rotation detecting means for detecting rotation of the first rotary member;a second rotary member configured to be rotatable concentrically with the rotary operation member;holding means disposed between the second rotary member and the rotary operation member, the holding means being configured to, while the second rotary member is not prevented from rotating, allow the rotary operation member and the second rotary member to rotate in unison, while the second rotary member is prevented from rotating, generate drag as the rotary operation member is allowed to rotate from a predetermined position to another position in the same direction as a direction in which the second rotary member was rotated until the rotation was prevented, and when a force applied to the rotary operation member is removed or the rotary operation member is rotated in the opposite direction, allow the rotary operation member to return from the other position to the predetermined position;braking means for stopping the rotation of the second rotary member when an output of the rotation detecting means exceeds an operation range of the rotary operation member;control means for releasing driving the braking means when determining on the basis of an output of the rotation detecting means that the rotation direction of the rotary operation member is reversed while the rotation of the second rotary member is prevented by the braking means;a planetary gear support configured to rotate concentrically with and in unison with the rotary operation member and rotatably support a planetary gear;an inner teeth row, provided for the second rotary member, configured to mesh with the planetary gear; andan outer teeth row, provided for the first rotary member, configured to mesh with the planetary gear. 2. The device according to claim 1, further comprising: a third rotary member configured to rotate concentrically with and in unison with the first rotary member, whereinthe outer teeth row is provided for the third rotary member, andthe second rotary member and the third rotary member are arranged on the same plane. 3. The device according to claim 2, wherein the holding means includes a cam member provided for either one of the second rotary member and the third rotary member and a driving member, provided for the other one of the second rotary member and the third rotary member, in elastic contact with the cam member. 4. The device according to claim 1, wherein the planetary gear is one of a plurality of planetary gears circumferentially spaced at equal angular intervals, andthe cam member and the driving member are arranged between the planetary gears. 5. The device according to claim 3, wherein restricting walls having an inclination angle larger than that of a cam face constituting the cam member are arranged on both sides of the cam member. 6. The device according to claim 5, wherein the other one of the second rotary member and the third rotary member includes protruding portions protruding around the driving member such that the protruding portions are locked by the restricting walls. 7. The device according to claim 1, wherein the braking means includes an armature configured to rotate in unison with the second rotary member and be displaceable in the axial direction of the device and a solenoid unit configured to attract the armature in the axial direction. 8. A rotation input device comprising: a rotary operation member;a first rotary member configured to rotate concentrically with and indirectly relative to the rotary operation member;rotation detector that detects rotation of the first rotary member;a second rotary member configured to be rotatable concentrically with the rotary operation member;holding device disposed between the second rotary member and the rotary operation member, the holding device being configured to, while the second rotary member is not prevented from rotating, allow the rotary operation member and the second rotary member to rotate in unison, while the second rotary member is prevented from rotating, generate drag as the rotary operation member is allowed to rotate from a predetermined position to another position in the same direction as a direction in which the second rotary member was rotated until the rotation was prevented, and when a force applied to the rotary operation member is removed or the rotary operation member is rotated in the opposite direction, allow the rotary operation member to return from the other position to the predetermined position;a brake that stops the rotation of the second rotary member when an output of the rotation detector exceeds an operation range of the rotary operation member;controller that releases driving the brake when determining on the basis of an output of the rotation detector that the rotation direction of the rotary operation member is reversed while the rotation of the second rotary member is prevented by the brake;a planetary gear support configured to rotate concentrically with and in unison with the rotary operation member and rotatably support a planetary gear;an inner teeth row, provided for the second rotary member, configured to mesh with the planetary gear; andan outer teeth row, provided for the first rotary member, configured to mesh with the planetary gear. 9. The device according to claim 8, further comprising: a third rotary member configured to rotate concentrically with and in unison with the first rotary member, whereinthe outer teeth row is provided for the third rotary member, andthe second rotary member and the third rotary member are arranged on the same plane. 10. The device according to claim 9, wherein the holding device includes a cam member provided for either one of the second rotary member and the third rotary member and a driving member, provided for the other one of the second rotary member and the third rotary member, in elastic contact with the cam member. 11. The device according to claim 8, wherein the planetary gear is one of a plurality of planetary gears circumferentially spaced at equal angular intervals, andthe cam member and the driving member are arranged between the planetary gears. 12. The device according to claim 10, wherein restricting walls having an inclination angle larger than that of a cam face constituting the cam member are arranged on both sides of the cam member. 13. The device according to claim 12, wherein the other one of the second rotary member and the third rotary member includes protruding portions protruding around the driving member such that the protruding portions are locked by the restricting walls. 14. The device according to claim 8, wherein the brake includes an armature configured to rotate in unison with the second rotary member and be displaceable in the axial direction of the device and a solenoid unit configured to attract the armature in the axial direction of the device and a solenoid unit configured to attract the armature in the axial direction.
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이 특허에 인용된 특허 (7)
Zgelein Walter (Rosstal DEX) Rechinger Dieter (Nrnberg DEX), Device for absolute displacement determination.
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