Rotary Potentiometer Mounting Clamp
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
The use of a one-piece rotary potentiometer mounting clamp eliminates offset loads when securing a rotary potentiometer in position. These potentiometers require their shaft to be along a given center line perpendicular to the hole surface. Conventionally, a rotary potentiometer 1 is mounted with two separate cleats 2 that are 180 degrees apart, as shown in Fig. 1. An unequal clamping force occurs when one side is clamped too tightly before clamping the opposite side. This, in turn, causes the potentiometer shaft 3 to skew, as indicated by the angle in Fig. 1, resulting in excessive internal wear on the potentiometer, inaccurate potentiometer feedback, and external damage to the transducer. Potentiometers made of a brittle or plastic material are susceptible to fracture under these conditions.