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US 4,050,021 AGranted
Moving-coil measuring system with a large pointer deflection
AssigneeVDO Adolf Schindling AG
InventorsHans-Georg Flach, Bernhard Stier
Life of this patent
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Abstract
A moving-coil measuring system with a large pointer deflection, utilizing a pole ring having a projection, a pole plate with a projection, a permanent magnet arranged between the projections, and a moving coil embracing the pole ring. The shaft of the coil rotates in two bushings which are concentric with respect to the pole ring. One of the bushings is mounted in the pole plate and the other bushing is mounted in a support fastened to the pole plate.
Claims8
In a moving-coil measuring system with large pointer deflection, comprising:
- A. a pole plate,
- B. a pole ring including a projection,
- C. a permanent magnet arranged between the pole plate and the projection,
- D. a first bushing mounted in the pole plate,
- E. a second bushing in a support fastened to the pole plate, the first and second bushings being concentric with respect to the pole ring, and
- F. a moving coil embracing the pole ring and mounted on a shaft, said shaft rotating in the first and second bushings, the moving coil being adapted to move a pointer,
- the improvement comprising:
- G. means for fastening the first bushing to the pole ring at a point on the pole ring which is fixed adjacent to the first bushing and which integrally forms a central part of the pole ring.
5 more elements
Dependencies are inferred from the claim text.