| 摘要 |
A rotary adjustment device adapted for user rotation to adjust the position of an adjacent mechanism such as the linkage for actuating an electrical snap switch. The device has an outer annular cam with a central hub structure with a shaft defining surface adapted for being rotatably journalled. The hub is suspended from the cam by torsionally stiff web structure which is radially inner an outer pairs of oppositely disposed spokes which permit resilient deflection, when unwanted side loads are applied to the shaft for preventing disturbances of the cam once the user has selected a rotary position.
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