This invention concerns an armature-mounting arrangement for a hinged-armature relay of a type comprising a yoke, an armature positioned at an end-portion of the yoke, an armature-holding spring which has at least one switching contact thereon and which is mechanically coupled to the armature.
Such an armature-mounting arrangement is disclosed in German Patent DE 43 20 831 (C1). In this relay, special mounting bearings are provided between the armature and yoke, with at least one of the armature and the yoke having inclined support surfaces. A moving of the armature is thereby converted into a rotational movement, with the middle point of the switching contact being at a center of rotation, so that switching contacts which lie opposite one another are not displaced relative to one another. In this manner, a contact displacement which would cause an increased contact burning, which in turn would greatly reduce the life of the relay, is avoided.
A disadvantage of this well-functioning armature mounting arrangement is that a stamping out, or punching out, of parts for such an armature-mounting arrangement is relatively cost intensive, particularly because large fabrication tolerances are not permissible for the armature and the yoke.
This is true as well for relays in which armatures are mounted in recesses of yokes.
Cost factors for manufacturing punched or stamped armature-mounting parts, while maintaining narrow fabrication tolerances, can, for mass-produced products such as hinged armature relays, have considerable importance.
Thus, it is an object of this invention to provide an armature-mounting arrangement for a hinged-armature relay which is particularly uncomplicated and cost effective to fabricate and which is not sensitive relative to fabrication tolerances of the yoke and armature.
USPTO Backgrounds
USPTO Backgrounds