PURPOSE: To stabilize the contact pressure between a slider and a thick paper resistor, by the constitution wherein the central part of rotation of the slider is rotated by a rotary between facing bracket and a holding plate with the central part being held by two rotary bodies.
CONSTITUTION: A rotary body 39 is inserted into a rotary-body holding hole 5 of a bracket main body 1. A base part 54 of a slider 53 is coupled to a coupling projection 48 of the rotary body 39 from the outside. A coupling recess part 50 of a following rotary body 49 is coupled to the coupling projection 48 of the rotary body 39. Under this state, a holding plate 8 is fixed to a supporting piece of the bracket 1. Therefore, the slider 53 is held by the rotary body 39 and the following rotary body 49 between the bracket main body 1 and the holding plate 8, and rotated by the rotary body 39. In this constitution, the contact between the slider 53 and thick film resistor films 14A and 14B is always stabilized, and the occurrence of measurement errors can be prevented.
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YAMASHITA KIYOSHI
FUJIGAYA TAKETOSHI
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