Back to results
US 4,541,745 AGranted
Print head construction
AssigneeMannesmann Aktiengesellschaft
InventorBernd Gugel
Life of this patent
Estimating the term…
Abstract
The coil carrier for a print head is constructed from nested sheet metal bodies with upwardly bent legs, being aligned in pairs and held together by a common sleeve having an end face which has a singular relationship to a common end face of all the arms. The several armatures pivot on edges of respective one of the legs of each pair and are held by retraction springs against the common end face.
Claims5
In a print head of the needle or wire stylus variety having a plurality of electromagnetically actuated print needles, wires or styli, the combination comprising
- a coil carrier constructed from two separate, nesting, relatively thin walled carrier elements, each having a base and upwardly extending legs which are respectively radially aligned whereby respective two aligned legs pertain to different carrier elements for establishing a yoke and a core for a particular coil, the two elements being secured to each other;
- and
- a plurality of pivotable armatures respectively associated with styli and with pairs of aligned legs whereby one leg of each pair respectively serves as fulcrum for the respective armature.
Dependencies are inferred from the claim text.