Armature mounting for an electromagnetic relay
AssigneesMatsushita Electric Works, Ltd., Hans Sauer
InventorHans Sauer
Life of this patent
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Abstract
An electromagnetic relay includes an armature 1 supported in a central longitudinal bore 12 of a one-part bobbin 2 by means of a bearing which includes a first pair of curved bearing surfaces 1a, 1b, formed on the armature 1 and engaging a second pair of supplementarily curved bearing surfaces 2a, 2b, formed in the bore walls. The first bearing surfaces 1a, 1b may be either cylindrical in which case cylindrical second bearing surfaces 2a, 2b are formed in ribs 2c, 2d projecting inwardly from opposite bore walls, or spherical in which case spherical second bearing surfaces are formed directly in opposite bobbin walls.
Claims11
An electromagnetic relay comprising:
- a one-part bobbin carrying a coil and having a central bore extending along a longitudinal axis of the bobbin, and including a pair of opposite, elastic walls, with a pair of ribs projecting from said elastic walls towards each other,
- armature means disposed in said bore, and
- a contact system operated by said armature means, said armature means having a pair of first curved bearing surfaces, and said ribs providing a pair of second curved bearing surfaces cooperating with said first bearing surfaces to support said armature means for pivotal movement about a transverse axis,
- said elastic walls allowing said armature means to be inserted in said bore with loose-play snap-engagement between said first and second pairs of bearing surfaces.
Dependencies are inferred from the claim text.