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US 4,359,703 AGranted
Electromagnetic relay
AssigneeSiemens Aktiengesellschaft
InventorHelmut Schedele
Life of this patent
Estimating the term…
Abstract
An electromagnetic relay has an armature and a number of contact elements disposed in the hollow interior of the spool about which the coil is wound. The contact elements are held in position by respective contact mounts which are inserted in the axial direction from both open end faces of the coil spool. The contact mounts are U-shaped within the coil spool and are aligned therein by the engagement of ribs carried on the contact mounts with corresponding guide grooves in the interior of the coil spool, thereby accurately and fixedly positioning the contact elements.
Claims11
An electromagnetic relay comprising:
- a coil spool about which a coil is wound and having a hollow interior having a plurality of axial guide grooves therein;
- a plurality of contact elements disposed approximately axially parallel within said interior of said coil spool;
- a yoke and an armature disposed in said interior of said coil spool operable for actuating said contact elements;
- a pair of contact mounts which are respectively inserted into opposite ends of said coil spool at opposite open end faces thereof, said contact mounts each carrying and rigidly holding a portion of said plurality of contact elements and one of said pair of contact mounts additionally carrying said yoke and said armature and the other of said contact mounts additionally carrying a pole piece,
- each of said contact mounts consisting of insulating material and having a U-shape with lateral arms which enclose said contact elements in said interior of said spool and a guide means carried on said lateral arms for engaging said guide grooves up to a center of said coil spool for accurately and fixedly positioning said carrier mounts and said contact elements.
2 more elements
Dependencies are inferred from the claim text.