JPH0370938U - - Google Patents
Info
- Publication number
- JPH0370938U JPH0370938U JP13179289U JP13179289U JPH0370938U JP H0370938 U JPH0370938 U JP H0370938U JP 13179289 U JP13179289 U JP 13179289U JP 13179289 U JP13179289 U JP 13179289U JP H0370938 U JPH0370938 U JP H0370938U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- core
- wound
- armature
- leaf spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Impact Printers (AREA)
Description
第１図は本考案の実施例を示す要部断面図、第
２図は実施例におけるコイルの接続状態を示す図
、第３図は実施例の動作を説明するための図、第
４図は従来例を示す断面図、第５図はプラテンと
ヘツドとの関係を示す図である。
１，１ａ，１ｂ……ニードル、２……アーマチ
ユア、３……板バネ、４……永久磁石、７，１１
，１２……コア、８，８ａ，８ｂ……電磁コイル
、１３……第１のコイル、１４……第２のコイル
。
Fig. 1 is a sectional view of a main part showing an embodiment of the present invention, Fig. 2 is a diagram showing the connection state of the coil in the embodiment, Fig. 3 is a diagram for explaining the operation of the embodiment, and Fig. 4 is a diagram showing the connection state of the coil in the embodiment. FIG. 5 is a sectional view showing a conventional example, and is a diagram showing the relationship between the platen and the head. 1, 1a, 1b... Needle, 2... Armature, 3... Leaf spring, 4... Permanent magnet, 7, 11
, 12... core, 8, 8a, 8b... electromagnetic coil, 13... first coil, 14... second coil.
Claims (1)
板ばねを偏奇させ、コアに巻回された電磁コイル
への通電により偏奇状態の板ばねを解放して、ア
ーマチユアに固着されたニードルを突出させて印
字を行うワイヤドツトヘツドにおいて、ヘツド先
端において端部に位置するニードルの対応する前
記コアに、前記電磁コイルとは別に第１のコイル
を巻回し、中央部に位置するニードルの対応する
前記コアに、前記第１のコイルの巻数より多い第
２のコイルを巻回し、前記電磁コイルへの通電に
より誘起される起電力が向い合う方向に前記第１
及び第２のコイルのコイル端を接続したことを特
徴とするワイヤドツトヘツド。 A permanent magnet attracts the armature to the core, causing the leaf spring to become eccentric, and by energizing the electromagnetic coil wound around the core, the eccentric leaf spring is released, causing the needle fixed to the armature to protrude and print. In a wire dot head to be used, a first coil is wound separately from the electromagnetic coil around the core corresponding to the needle located at the end at the tip of the head, and a first coil is wound around the core corresponding to the needle located at the center. A second coil is wound in a number greater than the number of turns of the first coil, and the electromotive force induced by energization of the electromagnetic coil is directed to the direction opposite to the first coil.
and a wire dot head, characterized in that the coil ends of the second coil are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13179289U JPH0370938U (en) | 1989-11-13 | 1989-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13179289U JPH0370938U (en) | 1989-11-13 | 1989-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0370938U true JPH0370938U (en) | 1991-07-17 |
Family
ID=31679279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13179289U Pending JPH0370938U (en) | 1989-11-13 | 1989-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0370938U (en) |
-
1989
- 1989-11-13 JP JP13179289U patent/JPH0370938U/ja active Pending