JPH0167039U

JPH0167039U -

Info

Publication number: JPH0167039U
Application number: JP1987161535U
Authority: JP
Priority date: 1987-10-21
Filing date: 1987-10-21
Publication date: 1989-04-28

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すワイヤー配
列図、第２図はこの考案の一実施例を示すワイヤ
ーと駆動部ユニツトの関係を示す説明図、第３図
はこの考案の一実施例及び従来例に共通のドツト
インパクトヘツドの駆動部ユニツトを示す概略図
、第４図は従来のドツトインパクトヘツドのワイ
ヤー配列図、第５図は従来のドツトインパクトヘ
ツドのワイヤーと駆動部ユニツトの関係を示す説
明図、第６図及び第７図はそれぞれこの考案の一
実施例及び従来のドツトインパクトヘツドによる
コイル駆動電流の波形図及び駆動部ユニツト間の
磁気干渉を示す説明図である。図において、１〜１６はワイヤー、１３ｄ及び
１４ｄはそれぞれワイヤー１３及び１４を駆動す
る駆動部ユニツトである。なお、各図中同一符号
は同一または相当部分を示す。 Fig. 1 is a wire arrangement diagram showing an embodiment of this invention, Fig. 2 is an explanatory diagram showing the relationship between wires and drive unit, showing an embodiment of this invention, and Fig. 3 is an embodiment of this invention. FIG. 4 is a wire arrangement diagram of a conventional dot impact head, and FIG. 5 is a diagram showing the relationship between the wires and the drive unit of a conventional dot impact head. 6 and 7 are explanatory diagrams showing waveforms of coil drive currents and magnetic interference between drive unit units in one embodiment of this invention and a conventional dot impact head, respectively. In the figure, 1 to 16 are wires, and 13d and 14d are drive unit units that drive the wires 13 and 14, respectively. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] A first group of wires whose tips are arranged on a first straight line substantially perpendicular to the direction of travel of the head; The tips are arranged on a second straight line parallel to the first straight line at a distance equal to an integral multiple of 0.5 dot pitch, and the positions of the tips in this straight line direction are different from the first wire group. A second group of wires, the tips of which are arranged on a third straight line parallel to the second straight line at a distance of an integral multiple of the dot pitch in the direction of movement of the head, and the tips in the straight line direction. a third wire group whose position is different from the first and second wire groups, and a third wire group that is spaced from the third straight line in the direction of movement of the head by a distance equal to an integral multiple of the dot pitch plus 0.5 dot pitch. a fourth wire group whose tips are arranged on a fourth straight line parallel to the third straight line, and whose tips in the linear direction are different from the first, second and third wire groups; a plurality of drive unit units that individually drive the wires in the wire group and the fourth wire group; and a plurality of drive unit units that individually drive the wires in the second wire group and the third wire group. A dot impact head comprising a drive unit and a drive unit group formed by alternately arranging one drive unit at a time.