Moving magnet type meter

In a moving magnet type meter wherein a bobbin body is constituted by an upper bobbin and a lower bobbin both formed of a synthetic resin;

• a pointer shaft is disposed within said bobbin body and supported by said upper and lower bobbins;
• a movable magnet is fixed onto said pointer shaft so that the upper end of the pointer shaft projects from the upper end side of said bobbin body;
• a pointer is attached fixedly to the upper end of said pointer shaft;
• and coils are mounted on the outer periphery of said bobbin body, allowing said movable magnet to perform an angular motion to operate the pointer by virtue of a magnetic field generated in the coils when energized, the improvement characterized in that said movable magnet is centrally formed with an upwardly projecting shaft support portion for supporting said pointer shaft, and a thrust bearing portion is formed in the lower surface of said upper bobbin in an opposed relation to the upper end face of said shaft support portion through a predetermined slight gap.

In a moving magnet type meter wherein a bobbin body is constituted by an upper bobbin and a lower bobbin both formed of a synthetic resin;

• a pointer shaft is disposed within said bobbin body and supported by said upper and lower bobbins;
• a movable magnet is fixed onto said pointer shaft so that the upper end of the pointer shaft projects from the upper end side of said bobbin body;
• a pointer is attached fixedly to the upper end of said pointer shaft;
• and coils are mounted on the outer periphery of said bobbin body, allowing said movable magnet to perform an angular motion to operate the pointer by virtue of a magnetic field generated in the coils when energized, the improvement characterized in that the portions of said bobbin body on which the coils are to be mounted are formed in a generally arched shape;
• said movable magnet is centrally formed with an upwardly projecting shaft support portion for supporting said pointer shaft;
• and a thrust bearing portion is formed in the lower surface of said upper bobbin in an opposed relation to the upper end face of said shaft support portion through a predetermined slight gap.