Title:
PRINTING HEAD OF WIRE DOT PRINTER
Document Type and Number:
Japanese Patent JPH01182058
Kind Code:
A
Abstract:
PURPOSE:To prolong the life of a printing head and accelerate printing action by selecting a dot-like welded part between printing wire and an armature, in a position where a bending stress appearing on the welded part becomes small when the armature is driven by a solenoid. CONSTITUTION:A groove-like recessed part 19 formed by curving a beam part is provided on an end 18a where printing wire 5 of the beam part 18 is fixed. Then the beam part 18 and wire 5 are welded in the form of dots at a point W in a state where one end 5a of the wire 5 is embedded in the recessed part 19. The point W is a central point of the size G of the tip 18a of the beam part. Each part is constituted in such a manner that an axial line along the longitudinal direction of a leaf spring 1, an axial line along the longitudinal direction of the body 17 of an armature, and the axial line of a virtual plane and printing wire which divides the thickness of an armature beam part 18 in two parts at said armature beam part 18, are included in a single virtual plane which is vertical with a paper surface, including an axial line Z-Z.
Inventors:
SAITO SHIGEMASA
TACHIBANA YUKIMASA
HASHIMOTO TADAO
TACHIBANA YUKIMASA
HASHIMOTO TADAO
Application Number:
JP768888A
Publication Date:
July 19, 1989
Filing Date:
January 18, 1988
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
B41J2/28; B41J2/26; (IPC1-7): B41J3/10
Attorney, Agent or Firm:
Iwao Yamaguchi