A knob assembly includes a front panel, a knob located at a front side of the front panel and configured to rotate based on operation by a user, a knob shaft that is coupled to the knob and that extends through the front panel, a supporting pipe that receives the knob shaft and that supports the knob shaft, the supporting pipe being configured to maintain a position relative to the front panel, a valve configured to control supply of gas to the appliance, a valve shaft connected to the valve and configured to control the valve to adjust a flow rate of gas based on rotation of the valve shaft, and a joint that couples the knob shaft to the valve shaft and that is configured to transfer at least one of a rotational motion or a linear motion of the knob shaft to the valve shaft.

A rotation operation device includes: a rotation shaft including a first end portion and a second end portion spaced apart from each other in an axial direction of the rotation shaft; a knob having conductivity, the knob being provided at the first end portion of the rotation shaft and being configured to rotate the rotation shaft; a touch sensor configured to detect a contact with the knob; and an elastic body having conductivity, the elastic body including a first end connected to the knob and a second end connected to the touch sensor. The knob includes a surface facing in the axial direction of the rotation shaft towards the second end portion of the rotation shaft, the surface of the knob includes a recess portion recessed in the axial direction, and the first end of the elastic body is disposed in the recess portion.

A rotation operation device includes: a rotation shaft including a first end portion and a second end portion spaced apart from each other in an axial direction of the rotation shaft; a knob having conductivity, the knob being provided at the first end portion of the rotation shaft and being configured to rotate the rotation shaft; a touch sensor configured to detect a contact with the knob; and an elastic body having conductivity, the elastic body including a first end connected to the knob and a second end connected to the touch sensor. The knob includes a surface facing in the axial direction of the rotation shaft towards the second end portion of the rotation shaft, the surface of the knob includes a recess portion recessed in the axial direction, and the first end of the elastic body is disposed in the recess portion.

A knob assembly includes a front panel, a knob located at a front side of the front panel and configured to rotate based on operation by a user, a knob shaft that is coupled to the knob and that extends through the front panel, a supporting pipe that receives the knob shaft and that supports the knob shaft, the supporting pipe being configured to maintain a position relative to the front panel, a valve configured to control supply of gas to the appliance, a valve shaft connected to the valve and configured to control the valve to adjust a flow rate of gas based on rotation of the valve shaft, and a joint that couples the knob shaft to the valve shaft and that is configured to transfer at least one of a rotational motion or a linear motion of the knob shaft to the valve shaft.

A cooktop includes a knob assembly controls a heating part. The knob assembly includes: a knob body disposed at a front surface of a control panel and rotating around a rotation shaft extended in a front-rear direction, a light diffusing part disposed at a rear side of the knob body and diffusing light, and a light source part disposed at a rear side of the light diffusing part and including one or more light sources. The light diffusing part includes a light source corresponding part disposed at a position corresponding to one of the light sources, and a thickness of the light diffusing part along a first straight line that passes from a center of the light diffusing part through the light source corresponding part is greater than a thickness of the light diffusing part along a straight line that does not pass through the light source corresponding part.

An operation knob apparatus includes a base a conductive transmitting member, an operation member that brings the transmitting member near to and away from a display panel, and a stabilizer disposed between the bases and the operation member. The stabilizer includes a main body, a pair of arms connected to respective ends of the main body, and a pair of base portions and connected to the respective arms. One of the base and the operation member has a holding portion configured to rotatably hold the main body, and the other has a pair of holding grooves respectively configured to slidably and rotatably hold the base portions.

An operation knob apparatus includes a base a conductive transmitting member, an operation member that brings the transmitting member near to and away from a display panel, and a stabilizer disposed between the bases and the operation member. The stabilizer includes a main body, a pair of arms connected to respective ends of the main body, and a pair of base portions and connected to the respective arms. One of the base and the operation member has a holding portion configured to rotatably hold the main body, and the other has a pair of holding grooves respectively configured to slidably and rotatably hold the base portions.

Device for vehicles, in particular fork-lift trucks, the device being designed at least for carrying out a steering movement of the vehicle, the device being arranged on an arm rest of a vehicle seat of the vehicle, wherein the device is at least partially rotatable about a first pivot axis relative to the arm rest, wherein rotation of the device about the first pivot axis causes the steering movement of the vehicle, and wherein the device comprises a first device element arranged above the arm rest, and a second device element which is fixedly connected to the first device element and extends downwards from the first device element beyond the first device element.

In certain embodiments, an electronic input device includes a knob assembly defining an annular cavity and including a magnetically attractable armature. The electronic input device also includes a ratchet assembly disposed within the annular cavity and includes a ring magnet. The electronic input device includes a clutch mechanism that has a friction disc assembly, and an electromagnet configured to generate a magnetic field that shifts the friction disc assembly between a first position in which the friction disc assembly prevents rotation of the ratchet assembly and a second position in which the ratchet assembly is free to rotate with the knob assembly. The ring magnet of the ratchet assembly interacts with the magnetically attractable armature to generate a ratcheting feedback in response to rotation of the knob assembly when the friction disc assembly is in the first position.

In certain embodiments, an electronic input device includes a knob assembly defining an annular cavity and including a magnetically attractable armature. The electronic input device also includes a ratchet assembly disposed within the annular cavity and includes a ring magnet. The electronic input device includes a clutch mechanism that has a friction disc assembly, and an electromagnet configured to generate a magnetic field that shifts the friction disc assembly between a first position in which the friction disc assembly prevents rotation of the ratchet assembly and a second position in which the ratchet assembly is free to rotate with the knob assembly. The ring magnet of the ratchet assembly interacts with the magnetically attractable armature to generate a ratcheting feedback in response to rotation of the knob assembly when the friction disc assembly is in the first position.