Moving magnet type meter

Details Moving magnet type meter Moving magnet type meter

G - Physics

01

R

324/80

G01R 5/16 (2006.01)

Patent

CA 1306498

- 1 - Abstract In the moving magnet type meter of the present invention, the coil mounting portions of a bobbin body are projected outwards in a generally arched shape on the central side to form circular arc-like or inclined surfaces. The bobbin body can be made to resist external pressure induced by the mounting of coils thereon and can be prevented from being deformed. Further, the upper portion of a movable magnet is centrally formed with an upwardly projecting shaft support portion for supporting a pointer shaft. A thrust bearing portion is formed in the lower surface of an upper bobbin body portion in an opposed relation to the upper end face of the said shaft support portion through a predetermined gap. The pointer shaft can be formed in the shape of a straight rod without forming a reduced-diameter portion serving as a thrust bearing, therefore the fabrication of the pointer shaft is easy and it is also possible to maintain the strength of the pointer shaft itself.

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