JPH0250340U

JPH0250340U -

Info

Publication number: JPH0250340U
Application number: JP13001688U
Authority: JP
Priority date: 1988-10-05
Filing date: 1988-10-05
Publication date: 1990-04-09

Description

[Brief explanation of drawings]

第１図は本考案のワイヤドツト印字ヘツドの駆
動素子の斜視図、第２図は交換用板バネ単体によ
り形成した駆動素子の斜視図、第３図ａは板バネ
単体を交換した後の駆動素子アツセンブリの平面
図、第３図ｂは第３図ａのＡ―Ａ断面図、第４図
は従来のバネチヤージ型のワイヤドツト印字ヘツ
ドにおける作動原理図、第５図は従来の駆動素子
の第１の配置例を示す図、第６図は従来の駆動素
子の第２の配置例を示す図である。１……印字ワイヤ、２……アーマチユア、３…
…バイアス用板バネ、４，５，７……ヨーク、６
……永久磁石、８……コア、９……コイル、１０
……レシジユアルシート、１１……駆動素子、３
１……切込み、３２……板バネ単体、３３……切
欠き、３４……交換用板バネ単体、３５……接合
用ハーフエツチング部、３６，３８，３９……孔
、３７……耳片。 Fig. 1 is a perspective view of the drive element of the wire dot printing head of the present invention, Fig. 2 is a perspective view of the drive element formed by a single replacement leaf spring, and Fig. 3a is the drive element after replacing the leaf spring alone. A plan view of the assembly, FIG. 3b is a sectional view taken along line AA in FIG. FIG. 6 is a diagram showing a second arrangement example of conventional drive elements. 1... Printing wire, 2... Armature, 3...
...Bias leaf spring, 4, 5, 7...Yoke, 6
... Permanent magnet, 8 ... Core, 9 ... Coil, 10
...Residual sheet, 11...Drive element, 3
1... Notch, 32... Leaf spring alone, 33... Notch, 34... Replacement leaf spring alone, 35... Half-etched part for joining, 36, 38, 39... Hole, 37... Ear piece. .

Claims

[Scope of claims for utility model registration] (1) An armature with a wire fixed to the tip,
A core provided opposite to the armature, a bias leaf spring to which the armature is joined and supported in a cantilever manner, and a bias plate spring wound around the core and generates magnetic flux when excited to rock the armature. In a wire dot printing head consisting of a moving coil, (a) radial cuts are made in the bias plate spring from the center of the approximately circular thin plate toward the periphery, leaving only the portion near the periphery, and a plurality of single plate springs are formed. and (b) a half-etched part for joining for installing a single replacement leaf spring in the vicinity of the base of the notch. (2) An armature with a wire fixed to the tip,
A core provided opposite to the armature, a bias leaf spring to which the armature is joined and supported in a cantilever manner, and a bias plate spring wound around the core and generates magnetic flux when excited to rock the armature. A replacement leaf spring for a wire dot printing head consisting of a moving coil (a) consists of a thin plate piece having a substantially isosceles triangular shape cut radially from the center of a substantially circular thin plate toward the periphery; (b) Near the base of the isosceles triangle of the thin plate piece,
A single leaf spring for replacement of a wire dot printing head, characterized by forming a lug for joining.