GRADUATED-CIRCLE ROTATING DEVICE OF SURVEYING INSTRUMENT

摘要

PURPOSE: To provide a graduated-circle rotating device without obstruction, wherein a large space for arranging an operating system is ensured without changing the height of an instrument, and wherein a cover member for covering a graduated-circle rotating knob so as to prevent erroneous operation is provided. ;CONSTITUTION: A container-shaped cover member 30, which is concentrically turned together with a rotary shaft 22 of a graduated-circle rotating knob 21, and wherein an opening part through which the graduated-circle rotating knob 21 is protruding and exposed is formed, is provided. When the cover member 20 is turned, the graduated-circle rotating knob 21 is protruding and exposed or concealed.;COPYRIGHT: (C)1996,JPO