JPH0483639U

JPH0483639U -

Info

Publication number: JPH0483639U
Application number: JP12901290U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-21

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例に係るコイル組
立体の底面図、第２図は第１図の−線断面図
、第３図は第１図の−線断面図、第４図は第
１図に示す同上コイル組立体の要部分解斜視図、
第５図は本考案の第２の実施例に係るコイル組立
体の底面図、第６図は第５図に示す同上コイル組
立体の要部分解斜視図、第７図は本考案の第３の
実施例に係るコイル組立体の底面図、第８図は第
７図に示す同上コイル組立体の要部分解斜視図、
第９図は一般的なワイヤドツト印字プリンタの要
部構造を示す断面図、第１０図は従来のコイル組
立体の一例を示す概略断面図、第１１図は第１０
図に示す同上コイル組立体の要部分解斜視図、第
１２図ａ，ｂ，ｃはそれぞれ従来におけるコイル
組立体の問題点を説明するための図である。１，２１，３１……コイル組立体、２……ボビ
ン、４，２４，３３……コア、７……中心孔、１
１……中心線、１２，２９，３７……プロテクシ
ヨン、５８……ドツトワイヤ、６４……励磁コイ
ル。 FIG. 1 is a bottom view of a coil assembly according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, FIG. 3 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. is an exploded perspective view of the main parts of the coil assembly shown in FIG. 1;
FIG. 5 is a bottom view of a coil assembly according to a second embodiment of the present invention, FIG. 6 is an exploded perspective view of essential parts of the same coil assembly shown in FIG. 5, and FIG. 7 is a third embodiment of the present invention. FIG. 8 is an exploded perspective view of the main parts of the coil assembly shown in FIG. 7;
FIG. 9 is a sectional view showing the main structure of a general wire dot printing printer, FIG. 10 is a schematic sectional view showing an example of a conventional coil assembly, and FIG.
The exploded perspective view of a main part of the coil assembly shown in the figure above, and FIGS. 12a, b, and c are views for explaining the problems of the conventional coil assembly, respectively. 1, 21, 31... Coil assembly, 2... Bobbin, 4, 24, 33... Core, 7... Center hole, 1
1... Center line, 12, 29, 37... Protection, 58... Dot wire, 64... Excitation coil.

Claims

[Claims for Utility Model Registration] An excitation coil, a core, and a hole in the center into which the core is inserted, and are formed into a substantially cylindrical shape, and have an opening on the circumferential surface leading into the center hole. and a resin bobbin around which the excitation coil is wound, the dot wire drive coil assembly comprising: a resin bobbin around which the excitation coil is wound; for inserting and guiding the core into the bobbin along the center line of the center hole; A dot wire drive coil assembly characterized by having the following protection.