Method of fabricating a biasing plate spring for a wire-dot prin

Details Method of fabricating a biasing plate spring for a wire-dot prin Method of fabricating a biasing plate spring for a wire-dot prin

1989-10-26

1990-12-25

Echols, P. W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29418, 51313, 209940, B23P 1300

Patent

active

049792776

ABSTRACT:
In a method of fabricating a biasing plate spring for a wire dot print head having an annular part and a plurality of projections extending radially inward from the inner periphery of the annular part, a biasing plate spring intermediate product having two of the projections substantially opposite to each other and connected by an arm, is first formed. The intermediate product is then barrel-polished, and then the arm is removed by cutting. Because of the arm, entry of one intermediate product into the gap between adjacent projections of another intermediate product is prevented, and damage to the intermediate product is thereby avoided.

REFERENCES:
patent: 4674179 (1987-06-01), Gugel et al.

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