Measuring mechanism having a positive locking arrangment for wide-angle moving coil systems and method for its assembly
OwnerKarl H. Rivoirinventor
Life of this patent
Estimating the term…
Abstract
A measuring mechanism for a wide-angle moving coil measuring system and a method for its assembly are disclosed. The mechanism includes concentrically arranged inner and outer pole rings. The rings terminate in arms between which a slot or spacing is arranged. The spacing is accessible from outside the mechanism in which spacing a pre-assembled movable part having an axle or two axle-hubs and moving coil frame is inserted into the internal space of the inner pole ring. The magnets are arranged to positive-locked with the pole rings. Two arrangements of magnets cooperating with the pole rings are disclosed.
Claims16
A measuring mechanism for a wide-angle moving coil system comprising:
- a mount with movable part, an inner and outer pole ring, and at least one permanent magnet, said mechanism having an arrangement of magnet and pole rings wherein said magnet and pole rings are physically maintained in relative position solely by coacting forces resulting from contiguous and contacting surfaces of said magnet and pole rings so as to mutually lock said elements relative to one another, said pole rings being mutually centered and fixed in this position, each of the pole rings having two arms, between which a slot is arranged, said movable part having axle means and a moving coil frame, wherein, for holding at least part of its moving coil frame, an internal spacing of said inner pole ring is arranged, which spacing is accessible from outside of the mechanism via said slot located between its arms, said slot having a width which is dimensioned so that the pre-assembled mount with corresponding coil frame can be inserted into the internal spacing of the inner pole ring.
A measuring mechanism for a wide-angle moving coil system comprising:
- an inner pole ring have an internal space;
- an outer pole ring;
- said pole rings being mutually centered and fixed in position and having an annular air gap therebetween;
- said pole rings each having two arms and said inner pole ring having a slot between its arms;
- said outer surfaces of the arms of said inner pole ring and the inner surfaces of the arms of said outer pole ring defining partially closed, geometrically-shaped spaces;
- permanent magnets, each having a shape conforming to said geometrically-shaped space, being disposed in said spaces so as to physically lock and mutually fix said inner and outer pole rings relative to each other, said pole rings being mutually centered with respect to each other;
- and
- a mount with a movable part, said movable part having axle means and a movable coil frame, said internal spacing of said inner pole ring having disposed therein at least part of its movable coil frame, said slot between the arms of said inner pole ring being dimensioned so that the pre-assembled mount with said corresponding coil frame can be inserted into the internal spacing of the inner pole ring.
A measuring mechanism for a wide-angle moving coil system comprising:
- an inner pole ring having an internal space;
- an outer pole ring;
- said pole rings being mutually centered and fixed in position and having an annular space therebetween;
- said pole rings each having two arms and said inner pole ring having a slot between its arms, the end portions of said inner and corresponding outer arms forming a keying arrangement so as to physically lock and mutually fix said inner and outer pole rings relative to each other;
- a permanent magnet adapted to conform to the shape of the inner surface of the outer pole ring and being disposed in the annular space between said pole rings so that an annular air gap remains between the inner surface of the magnet and the outer surface of the inner pole ring, said magnet being maintained in position by virtue of forces exerted by the mutual locking arrangement of inner and outer pole rings;
- and
- a mount with a movable part, said movable part having axle means and a movable coil frame, said internal spacing of said inner pole ring having disposed therein at least part of its movable coil frame, said slot between the arms of said inner pole ring being dimensioned so that the pre-assembled mount with said and corresponding coil frame can be inserted into the internal spacing of the inner pole ring.
Dependencies are inferred from the claim text.