Cross-coil type indicating instrument

A cross-coil type indicating instrument comprising:

• a coil bobbin comprising two sections and defining therein a space;
• a cross coil comprising a pair of coils mutually perpendicularly wound on said coil bobbin for generating a combination magnetic field upon the supply of current in proportion to a given measurement quantity;
• a magnet rotor disposed in said space of said coil bobbin, said magnet rotor having a rotary shaft extending through the center of said magnet rotor and projecting upward and downward therefrom for the rotation of said magnet rotor through a certain angle in accordance with said combination magnetic field generated by said cross coil;
• a first bearing hole formed in a first section among said two sections of said coil bobbin for rotatably supporting a first end portion of said rotary shaft while sustaining radial load thereof, and a second bearing hole formed in the second section of said coil bobbin for rotatably supporting a second end portion of said rotary shaft while sustaining radial and thrust loads thereof;
• a recess formed in an upper surface of said magnet rotor in the periphery of said first bearing hole for receiving a viscous liquid for damping;
• and
• a damping projection formed as a cylindrical body projecting downward from the periphery of said first bearing hole formed in said first section of said coil bobbin, said damping projection being inserted into said recess and dipped in said viscous liquid.