JPH0463247U

JPH0463247U -

Info

Publication number: JPH0463247U
Application number: JP10594590U
Authority: JP
Priority date: 1990-10-11
Filing date: 1990-10-11
Publication date: 1992-05-29

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示すワイヤ印
字ヘツドの要部断面図、第２図は第１図の作用を
示すワイヤ印字ヘツドの側断面図、第３図は第２
実施例を示すワイヤドツト印字ヘツドの側断面図
、第４図は従来のワイヤドツト印字ヘツドの側断
面図である。２……永久磁石、６……板バネ、９……アーマ
チユア、１０……印字ワイヤ、１１……コア、１
３，１７……アーマチユア保持部、１４，２０…
…アーマチユア受け部、１４ａ……テーパ部１４
ａ、１５，１９……緩衝体、１６，１８……スト
ツパ、１６ａ……テーパ受け部、１８ａ……テー
パ受け部、２０ａ……テーパ部。 FIG. 1 is a sectional view of essential parts of a wire printing head showing the first embodiment of the present invention, FIG. 2 is a side sectional view of the wire printing head showing the operation of FIG. 1, and FIG.
A side sectional view of a wire dot print head showing an embodiment, and FIG. 4 is a side sectional view of a conventional wire dot print head. 2... Permanent magnet, 6... Leaf spring, 9... Armature, 10... Printing wire, 11... Core, 1
3, 17... Armature holding part, 14, 20...
... Armature receiving part, 14a ... Tapered part 14
a, 15, 19...buffer, 16, 18...stopper, 16a...taper receiving part, 18a...taper receiving part, 20a...taper part.

Claims

[Claims for Utility Model Registration] The free end side of a leaf spring whose fixed end is held between a yoke and a spacer stacked on the periphery of the base extends toward the center, and an armature is supported on the free end side. and a core is placed on the base so as to face the armature via the leaf spring, and the armature is attracted to the core by magnetic flux and released from the core, thereby deflecting or restoring the leaf spring. The wire dot printing head which performs printing using a printing wire attached to the tip of the armature includes an armature receiving portion made of a rigid member having a tapered portion and with which the tip of the armature comes into contact when the armature is attracted to the core; , a buffer body having elasticity that supports the armature receiving part from below, and a tapered receiving part that faces the tapered part of the armature and is inclined parallel to the tapered part while maintaining a predetermined gap with the tapered part at the upper outer peripheral edge. 1. A wire dot printing head characterized in that an armature holding portion constituted by a stopper made of a rigid member provided on the core is disposed inside the core.