The electrical switch includes a first and a second fixed contact, and a rotatable knife contact including at least one pair of blades being flexibly connected to each other and rotating around a rotational axis. A third fixed contact is positioned on an opposite side of the rotational axis in relation to the adjacent first and second fixed contact and a middle portion of the rotatable knife contact is electrically connected to the third fixed contact. The rotatable knife contact connects in a first switching position the first fixed contact and in a second switching position the second fixed contact to the third fixed contact.

The electrical switch includes a first and a second fixed contact, and a rotatable knife contact including at least one pair of blades being flexibly connected to each other and rotating around a rotational axis. A third fixed contact is positioned on an opposite side of the rotational axis in relation to the adjacent first and second fixed contact and a middle portion of the rotatable knife contact is electrically connected to the third fixed contact. The rotatable knife contact connects in a first switching position the first fixed contact and in a second switching position the second fixed contact to the third fixed contact.

A knob assembly includes a lower housing, a pushing member, an upper housing, and a screw member. The lower housing includes a tank and hook structures. A through via is formed at the center of the lower housing. The upper housing is rotatably stacked on the lower housing. A lower surface of the upper housing includes an annular hook groove. The pushing member is disposed between the upper and the lower housing, and includes a body and pushing structures. A screw hole is formed at the center of the body. When the screw member is screwed into the screw hole through the through via, the pushing member moves toward and locks the lower housing, and the pushing structures push the hook structures to cause the hook structures to expand outward and be hooked to the annular hook groove, so that the upper housing is limited by the lower housing.

The electrical switch includes a first and a second fixed contact, and a rotatable knife contact including at least one pair of blades being flexibly connected to each other and rotating around a rotational axis. A third fixed contact is positioned on an opposite side of the rotational axis in relation to the adjacent first and second fixed contact and a middle portion of the rotatable knife contact is electrically connected to the third fixed contact. The rotatable knife contact connects in a first switching position the first fixed contact and in a second switching position the second fixed contact to the third fixed contact.

A rotation operation input device that achieve downsizing and excellent durability while offering clear and good operation feeling. The rotation operation input device comprises detected portions which is provided concentrically with a rotation operation member about a rotation axis and rotates along with rotation of the rotation operation member, and a detection unit which detects the detected portions and a phase of the rotation operation member. The detected portions are provided at a predetermined interval along an outer edge of the rotation operation member, this outer edge is provided with a recess/protrusion part, the recess/protrusion part has recess parts each positioned between the detected portions and protrusion parts each positioned on each straight line connecting each detected portion and the rotation axis, and an urging member that urges the recess/protrusion part is provided on a side opposite to the detected portions across the recess/protrusion part.

A rotation operation input device that achieve downsizing and excellent durability while offering clear and good operation feeling. The rotation operation input device comprises detected portions which is provided concentrically with a rotation operation member about a rotation axis and rotates along with rotation of the rotation operation member, and a detection unit which detects the detected portions and a phase of the rotation operation member. The detected portions are provided at a predetermined interval along an outer edge of the rotation operation member, this outer edge is provided with a recess/protrusion part, the recess/protrusion part has recess parts each positioned between the detected portions and protrusion parts each positioned on each straight line connecting each detected portion and the rotation axis, and an urging member that urges the recess/protrusion part is provided on a side opposite to the detected portions across the recess/protrusion part.

A knob device includes a lower cover assembly, an upper cover assembly, a limiting member and an annular member. The lower cover assembly includes a first stopping portion. The upper cover assembly is rotatably stacked on the lower cover assembly along an axis. The upper cover assembly has multiple fixing holes. The limiting member is located between the upper cover assembly and the lower cover assembly and fixed to the lower cover assembly. The limiting member includes a body and a second stopping portion extending from the body. The second stopping portion and first stopping portion are arranged up and down along the axis. The annular member is arranged around the body, and the annular member is rotatably arranged between the first stopping portion of the lower cover assembly and the second stopping portion. The first stopping portion and the second stopping portion limit the annular member on the axis. The annular member includes multiple pogo pins retractably protruding from an outer surface. The pogo pins extend into the fixing holes of the upper cover assembly to fix the annular member to the upper cover assembly.

An operation device includes a scroll wheel, a portion of which projects from an opening of an operation surface. The scroll wheel is configured to be rotated by an operator. The scroll wheel includes a ring member that is formed by a light transmissive member, which is configured to transmit light. The operation device includes: a light source that is configured to generate light for nighttime illumination; a wheel illumination light guide member that is configured to guide the light, which is outputted from the light source, to the scroll wheel; and a metal film that is formed at an inner peripheral surface of the ring member.

A multi-functional manipulation apparatus and method include a switch that operates by an external force from a neutral position and returns to the neutral position when the external force is removed, a vibrator coupled to the switch to vibrate depending on an operation of the switch, and a controller that controls a vehicle accessory device corresponding to the vibrator and the switch, in response to the operation of the switch.

A multi-functional manipulation apparatus and method include a switch that operates by an external force from a neutral position and returns to the neutral position when the external force is removed, a vibrator coupled to the switch to vibrate depending on an operation of the switch, and a controller that controls a vehicle accessory device corresponding to the vibrator and the switch, in response to the operation of the switch.