Abstract: 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.

Abstract: In a valve actuating system having an actuating drive which has a drive housing and an output unit which is movably mounted in the drive housing for generating a stroke of a spindle of a valve for opening or closing a through-flow opening of the valve, wherein the output unit has a force pickup portion to which the spindle is coupleable or coupled and a fastening portion arranged opposite the force pickup portion, wherein the actuating drive furthermore possesses a holder, which is separate from the output unit, has a holder longitudinal-axis and has a fastening device by way of which it is fastened to the fastening portion of the output unit and a support device for supporting at least one position information element on the holder, and wherein the valve actuating system has a plurality of mutually different types of position information elements supported on the holder by way of the support device.

Abstract: A turning peg structure equipped with changeable faceplate to drive a winding shaft assembly of a string instrument to adjust the tightness of a string. The turning peg structure includes a bracket, at least one first faceplate, at least one second faceplate and a linking rod. The bracket includes a plate and a passage embedded in and run through the plate. The plate includes a first side and a second side opposite to the first side. The first faceplate includes a first connecting portion connected to the first side of the bracket. The second faceplate includes a second connecting portion connected to the second side of the bracket. The linking rod has one end located in the passage and another end engaged with the winding shaft assembly. Through the bracket, the turning peg structure does not lose string adjustment function due to damage thereof.

Abstract: An air conditioner controlling device for a vehicle may include a knob rotatably installed on the front of a case, a cylindrical cam rotatably installed inside the case, interlocked with a shaft of the knob, and having a slot formed in an outer surface thereof, and a lever having one end rotatably mounted to the case and the other end insertedly coupled to the slot of the cylindrical cam to thereby reciprocate the cylindrical cam at the time of rotation of the cylindrical cam, wherein the lever may be insertedly mounted in a portion of the slot formed along the outer surface of the cylindrical cam, and a mounting position and angle of the lever may be thus adjusted, such that a reciprocation direction of the lever may be freely adjusted.

Abstract: Disclosed is a rotating actuator with a variable latching profile, the rotating actuator having a housing, a rotary knob and a rotary shaft connected in a rotationally fixed manner to the rotary knob, and also at least two latching contours connected in a rotationally fixed manner to the rotary shaft, one support per latching contour, on which support at least one latching element is arranged, the latching element engaging in the latching contour assigned to the support, and which support is mounted rotatably about the rotary shaft, and at least one locking device per support, by means of which the support can be locked relative to the housing.

Abstract: A carriage adapted for carrying a laboratory instrument such as a pipette, electrode, or syringe is driven by a drive shaft in the form of a lead screw. The lead screw is selectively driven by a high speed drive wheel or by a low speed drive wheel. The drive wheels are coaxially mounted around the drive shaft and concentrically and coaxially arranged with respect to one another. The drive shaft and the two drive wheels all rotate in unison in the same rotary direction.