A knob structure includes a fixed member, a rotational assembly, and a damping element. The fixed member includes a carrying platform. The rotational assembly is rotatably disposed on the fixed member. The damping element is disposed between the carrying platform and the rotational assembly. A contact area between the carrying platform and the damping element is configured to be changed by a rotation of the rotational assembly.

An adjusting turret for a telescopic sight or reflex sight includes a rotary cap, which is rotatable about a rotary axis by applying a first torque, as an actuator for a spindle, wherein the rotary cap includes at least one rotation stop which is rotatable relative to the spindle about the rotary axis by applying a second torque that is smaller than the first torque, wherein the adjusting turret has at least one scale which is arranged on a part that is separate from the rotation stop.

The apparatus includes remote controlled knobs with a safety sensor. The knobs are configured for universal use and replace the existing knobs on a stove. Motorized gears in the knob are configured to rotate the knob to the off position and turn the burner off from a remote location though an application hosted on an electronic device. The sensor is fastened to a surface above the stove by adhesive and is adapted to sense, though an infrared sensor, the presence of a dangerous condition. The sensor includes a camera and heat sensor communicating with the application to verify that the stove is off, or if not off enable a user or turn it off. The sensor includes a plurality of adjustable, infrared temperature sensors which are angled at the burners. The heat sensors enable monitoring and may turn off the stove top when an unsafe heat level is reached.

A split calibration knob can include a lower knob with a lower-knob attachment interface and an upper knob with an upper-knob attachment interface configured to be engaged with the lower-knob attachment interface. One of the lower-knob attachment interface and the upper-knob attachment interface can include a tube with a first press-fit feature and a first positioning feature positioned on the tube. The other of the lower-knob attachment interface and the upper-knob attachment interface can include a hub having an outward facing surface, a second press-fit feature configured to be engaged with the first press-fit feature to secure the upper knob to the lower knob, and a second positioning feature configured to be engaged with the first positioning feature to fix an orientation of the upper knob relative to the lower knob, thereby linking rotation of the lower knob to the rotation of the upper knob.

A split calibration knob can include a lower knob with a lower-knob attachment interface and an upper knob with an upper-knob attachment interface configured to be engaged with the lower-knob attachment interface. One of the lower-knob attachment interface and the upper-knob attachment interface can include a tube with a first press-fit feature and a first positioning feature positioned on the tube. The other of the lower-knob attachment interface and the upper-knob attachment interface can include a hub having an outward facing surface, a second press-fit feature configured to be engaged with the first press-fit feature to secure the upper knob to the lower knob, and a second positioning feature configured to be engaged with the first positioning feature to fix an orientation of the upper knob relative to the lower knob, thereby linking rotation of the lower knob to the rotation of the upper knob.

A control knob assembly for a cooktop appliance includes a control knob having a plastic outer shell defining a cavity and a boss extending from the outer shell through the cavity. A steel weight is positioned within the cavity around the boss for adding mass to the control knob and a locking mechanism, such as a lock washer, is positioned around the boss to secure the weight within the cavity.

A control knob assembly for a cooktop appliance includes a control knob having a plastic outer shell defining a cavity and a boss extending from the outer shell through the cavity. A steel weight is positioned within the cavity around the boss for adding mass to the control knob and a locking mechanism, such as a lock washer, is positioned around the boss to secure the weight within the cavity.

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 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 joint, a knob assembly, and an appliance having a joint and a knob assembly are provided. The joint may include a housing, a first shaft support, a second shaft support, and a coupling shaft. A slot having a predetermined width extending in a circumferential direction of the housing and a predetermined length extending in a longitudinal direction of the housing may be formed in the housing. The coupling shaft provided in the second support may include a rotary shaft rotatably inserted into the slot. A stopper may be formed to protrude from an outside of the rotary shaft, and a position of the stopper inside the slot may be changed according to rotation of the rotating shaft. The stopper may be provided in the slot so that the stopper interferes with an inner wall of the housing formed by the slot at a predetermined position.