JPS6220834U

JPS6220834U -

Info

Publication number: JPS6220834U
Application number: JP11313285U
Authority: JP
Priority date: 1985-07-22
Filing date: 1985-07-22
Publication date: 1987-02-07

Description

[Brief explanation of the drawing]

第１図はこの考案に係るドツトインパクトヘツ
ドの一例を示す半截断面図、第２図は第１図のヘ
ツドにおけるレバー等の要部の斜視図、第３図は
ワイヤー取付前の要部の分解斜視図、第４図はレ
バーの折曲前の金属薄板の形状を示す平面図、第
５図は従来のドツトインパクトヘツドを示す半截
断面図、第６図は同従来のヘツドにおけるレバー
等の部分の斜視図、第７図Ａ，Ｂはそれぞれ従来
のドツトインパクトヘツドの別のレバーの構成を
示す側面図およびＢ―Ｂ線断面図、第８図Ａ，Ｂ
はそれぞれ従来のドツトインパクトヘツドのさら
に別のレバーの構成を示す側面図およびＢ―Ｂ線
断面図である。１……コア、４……第１のヨーク、６……アー
マチユア、６ａ……溝、６ｂ……先端面、７……
ワイヤー、９……板ばね、１０……第２のヨーク
、１１……マグネツト、１２……コイル、２３…
…レバー、２４……レバー基体、２４ａ……中央
折曲部、２５，２６……折曲片、２５ａ，２６ａ
……端部、２７，２８……フランジ片、２７ａ，
２８ａ……幅広端部、１００……金属薄板。なお
、図中、同一符号は同一もしくは相当部分を示す
。 Figure 1 is a half-cut sectional view showing an example of the dot impact head according to this invention, Figure 2 is a perspective view of the main parts of the head shown in Figure 1, such as the lever, and Figure 3 is an exploded view of the main parts before wire attachment. A perspective view, FIG. 4 is a plan view showing the shape of the thin metal plate of the lever before bending, FIG. 5 is a half-cut sectional view showing a conventional dot impact head, and FIG. 6 is a portion of the lever, etc. in the same conventional head. FIGS. 7A and 7B are a side view and a sectional view taken along the line B--B, respectively, and FIGS. 8A and B are respectively a perspective view and a cross-sectional view taken along the line B--B of a conventional dot impact head.
1A and 1B are a side view and a sectional view taken along the line B--B, respectively, showing still another lever configuration of a conventional dot impact head. 1... Core, 4... First yoke, 6... Armature, 6a... Groove, 6b... Tip surface, 7...
Wire, 9... Leaf spring, 10... Second yoke, 11... Magnet, 12... Coil, 23...
... Lever, 24 ... Lever base, 24a ... Center bending part, 25, 26 ... Bending piece, 25a, 26a
... End, 27, 28 ... Flange piece, 27a,
28a...wide end portion, 100...metal thin plate. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A core that forms part of the magnetic path with the yoke, an armachia disposed opposite to the front end surface of the core,
A printing wire fixed to the armature via a lever, a leaf spring that always applies a forward spring force to the armature, and a magnetic pole for adsorbing the armature to overcome the spring force are formed on the front end surface of the core. and a coil that is wound around the core and generates a magnetic flux that eliminates the armature attraction force when energized. A lever base formed by setting each end of the piece as a wire clamping part, and a lever base that is bent in the direction opposite to the overlapping surface on each side of the above-mentioned double bent piece, and from the end of the bent piece. The wire holding lever is constituted by a pair of opposing flange pieces that gradually become wider toward the central bent portion, and the central bent portion is connected to a groove formed on the distal end surface of the armature. Fit it into the
A dot impact head characterized in that wide end portions of the opposing flange pieces are respectively bonded and fixed to both front and rear sides of the armature.