US 4,362,405 A · Moving coil type printing head

Abstract

A moving coil type printing head comprises a cantilevered printing lever comprised of a leaf spring having a printing element at its free end. The printing lever has a base portion supported by a holding member, two resilient leg portions integrally extending from the base portion, a triangular lever portion integral with the leg portions, and a tongue portion integrally extending from the base of the lever portion toward the base portion. A fulcrum member is attached to either the tongue portion or a plate member mounted on the holding member and is arranged so as to contact the other of the tongue portion and plate member. An excitable coil is secured to the triangular lever portion of the printing lever and coacts with a magnet flux generating circuit to effect movement of the coil and printing lever to carry out a printing operation.

Claims14

Dependent claims

A moving coil type printing head comprising:

a cantilevered printing lever comprised of a leaf spring and having at a free end thereof a printing element opposing a platen;
a movable coil secured to said printing lever for movement therewith;
magnetic flux generating means for producing a magnetic flux which intersects said movable coil to effect movement of the coil;
said printing lever having a base portion supported by a holding member, two resilient leg portions integrally extending from said base portion, a triangular lever portion integral with said leg portions and carrying said movable coil, and a tongue portion integrally extending from the base of said lever portion toward said base portion;
and a fulcrum member attached to one of said tongue portion and a plate member mounted on said holding member so as to be in contact with the other of said tongue portion and said plate member.

2 more elements

Dependencies are inferred from the claim text.

Moving coil type printing head

Life of this patent

Moving coil type printing head

Life of this patent

Abstract

Claims14