JPS58128037U - Dot type line printer print head - Google Patents
Dot type line printer print headInfo
- Publication number
- JPS58128037U JPS58128037U JP2646382U JP2646382U JPS58128037U JP S58128037 U JPS58128037 U JP S58128037U JP 2646382 U JP2646382 U JP 2646382U JP 2646382 U JP2646382 U JP 2646382U JP S58128037 U JPS58128037 U JP S58128037U
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- leaf spring
- print head
- printing
- mask
- 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.)
- Granted
Links
Landscapes
- Handling Of Sheets (AREA)
- Impact Printers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
、 第１図は従来のスプリングチャージ式ドツトライ
ンプリンタの印字ヘッド、及びその使用形態を−示す模
式的斜視図、第２図は従来の側方ヨーク及びマスクを取
付けた印字ヘッドを示す模式的斜視図、第３図は印字ヘ
ッドの吸引力特性と板ばねの復元力の関係を示す図、第
４図は印字ヘッドを駆動する為にコイルに流す電流の通
電時間と印字ヘッドが駆動したときの印字力の関係を示
す図、第５図は印字ヘッドの板ばねのそりによるばらつ
きによる吸引力特性の差を説明する図、第６図は第５図
に示した吸引特性における通電時間々印字力の関係を示
す図、第７図は本考案のマスクを用いたドツトラインプ
リンタの構成概念を示す部分斜視図、第８図は従来の印
字ヘッドの等価回路図、第９図は本考案のアスクを用い
た印字ヘッドの等価回路図、第１０図は本考案のマスク
の効果を示す吸引特性図、第１１図は本考案のマスクの
効果を示す通電時間と印字力の関係を示す。図中各記号
はそれぞれ次のものを示す。
１・・・板ばね、２・・・ベース、３・・・固定板、４
・・・ヨーク、５・・・永久磁石、６・・・コイル、７
・・・ハンマピン、８・・・プラテン、９・・・インク
リボン、１０・・・印字用紙、１１・・・側方ヨーク、
１２・・・マスク、１３・・・印字ヘッドの吸引力特性
、１４・・・板ばねの復元力、１５・・・コイル通電に
より低下した吸引力特性、１６・・・コイル通電時間と
印字力の特性曲線、１７・・・設定した板ばねの復元力
、１８．１９・・・板ばねのそりにより生じた復元力、
２０，２ｉ・・・板ばねのそりにより生じたコイル通電
時間と印字力の特性曲線、２２．２３・・・本考案め厚
さの異なるマスク、２４・・・設定した吸引力特性、２
５．２７・・・板ばねのそりにより生じた板ばねの復元
力、２６゜２８・・・本考案により変化した吸引力特性
、２９． “３１・・・板ばねのそりにより生
じたコイル通電時間と印字力の特性曲線、３０．３２・
・・本考案により得られたコイル通電時間と印字力の特
性曲線、その他記号は次のものを示す。第３図、第５図
、第１０図において、Ｘ・・・板ばねとヨーク先端の間
隙、Ｘｏ・・・板ばねの撓みが零になるときの板ばね、
ヨーク間の間隙、Ｆ・・・力を示す、Ｆｍ・・・板ばね
がヨ−クに吸着されたときの吸引力の最大値、Ｆｏ・・
・板ばねがヨークに吸着されたときの復元力、第４ＩＩ
、１６図、第１１図において、Ｔ・・・コイルに流す電
流の通電時間、Ｆｉ・・・印字ヘッドのプラテンを打撃
するときの力（印字力）、ＴＡ・・・通電時間が少な（
十分な印字力が得られない箇所、ＴＢ・・・通電時間が
多すぎて、十分な印字力が得られない箇所、ＴＣ，ＴＤ
・・・安定した印字力の得られる通電時間、ＴＯ・・・
駆動条件として設定できる通電時間、第８図、第９図に
おいて、φ０・・・永久磁石の発する磁束、φｇ・・・
板ばねの吸着部に流れる磁束、φＳ・・・板ばねが飽和
し、板ばね自身に流れる磁束、Ｐｏ・・・永久磁石から
板ばね吸着部に至るまでのパーミアンス、Ｐｇ・・・板
ばねの吸着部のパーミアンス、Ｐｓ・・・板ばねが飽和
したときのパーミアンス、Ｐｌ・・・板ばね、側方ヨー
ク間のパーミアンス、Ｐｌｌ・・・板ハね、マスク間の
パーミアンス。
第１０図
＝
２７ ｚ−
第 １１ 図
１−１
１、丁, Fig. 1 is a schematic perspective view showing the print head of a conventional spring-charged dot line printer and its usage pattern, and Fig. 2 is a schematic perspective view showing the print head with a conventional side yoke and mask attached. Figure 3 is a diagram showing the relationship between the attraction force characteristics of the print head and the restoring force of the leaf spring, and Figure 4 shows the relationship between the energization time of the current flowing through the coil to drive the print head and the time when the print head is driven. Figure 5 is a diagram showing the relationship between printing forces. Figure 5 is a diagram explaining the difference in suction force characteristics due to variations due to warping of the leaf spring of the print head. Figure 6 is the graph showing the printing force over time when the current is applied for the suction characteristics shown in Figure 5. FIG. 7 is a partial perspective view showing the structural concept of a dot line printer using the mask of the present invention, FIG. 8 is an equivalent circuit diagram of a conventional print head, and FIG. FIG. 10 is a suction characteristic diagram showing the effect of the mask of the present invention, and FIG. 11 shows the relationship between current application time and printing force showing the effect of the mask of the present invention. Each symbol in the figure indicates the following. 1... Leaf spring, 2... Base, 3... Fixed plate, 4
...Yoke, 5...Permanent magnet, 6...Coil, 7
... Hammer pin, 8... Platen, 9... Ink ribbon, 10... Print paper, 11... Side yoke,
12... Mask, 13... Attraction force characteristics of print head, 14... Restoration force of leaf spring, 15... Attraction force characteristics reduced by coil energization, 16... Coil energization time and printing force Characteristic curve of 17... Restoring force of the set leaf spring, 18.19... Restoring force caused by warping of the leaf spring,
20, 2i...Characteristic curve of coil energization time and printing force caused by warpage of the leaf spring, 22.23...Masks of the present invention with different thicknesses, 24...Set suction force characteristics, 2
5.27... Restoration force of the leaf spring caused by warpage of the leaf spring, 26°28... Attraction force characteristics changed by the present invention, 29. “31...Characteristic curve of coil energization time and printing force caused by warping of leaf spring, 30.32.
...The characteristic curve of coil energization time and printing force obtained by this invention, and other symbols are as follows. In FIGS. 3, 5, and 10, X: the gap between the leaf spring and the tip of the yoke; Xo: the leaf spring when the deflection of the leaf spring becomes zero;
Gap between yokes, F... Indicates force, Fm... Maximum value of suction force when the leaf spring is attracted to the yoke, Fo...
・Restoring force when the leaf spring is attracted to the yoke, Part 4 II
, 16, and 11, T...the energization time of the current flowing through the coil, Fi...the force when striking the platen of the print head (printing force), and TA...the energization time is short (
Areas where sufficient printing force cannot be obtained, TB... Areas where sufficient printing force cannot be obtained due to too long energization time, TC, TD
...Electrification time to obtain stable printing power, TO...
In Fig. 8 and Fig. 9, the energization time that can be set as the driving condition, φ0... the magnetic flux emitted by the permanent magnet, φg...
Magnetic flux flowing to the leaf spring attraction part, φS...Magnetic flux flowing to the leaf spring itself when the leaf spring is saturated, Po...Permeance from the permanent magnet to the leaf spring attraction part, Pg...of the leaf spring Permeance of the suction part, Ps...permeance when the leaf spring is saturated, Pl...permeance between the leaf spring and side yoke, Pll...permeance between the leaf spring and the mask. Figure 10 = 27 z- 11 Figure 1-1 1.
Claims (1)
持ち板ばねの先端をヨーク面に吸着することにより前記
板ばねに生ずる歪みエネルギを印字エネルギ源としたハ
イマ機構に、前記板ばねの両側に側方ヨークと側方ヨー
ク前面に印字ノ１ンマピンを通す窓を設けたマスクを設
け、前記永久磁石とヨーク、板ばね、側方ヨーク、マス
クとで閉磁路を形成した印字ハンマを複数個並列に配置
したスプリングチャージ式ドツトラインプリンタ印−字
ヘッドにおいて、板ばねのそりがヨーク吸着方向にあり
前記板ばねのたわみ量の小さ−い印字ノ１ンマには板厚
の薄いマスクを設け、板ばねのそりが、 ヨーク吸着
方向と逆方向にあり前起板ばねのたわみ量の大きい印字
ハンマには板厚の厚いマスクを設けたことを特徴とする
ドツト式ラインプリンタ印字ヘッド。An attraction mechanism consisting of a permanent magnet and a yoke attracts the tip of a cantilevered leaf spring to the yoke surface, and the tension energy generated in the leaf spring is used as a printing energy source. A side yoke and a mask with a window through which a printing hammer pin passes are provided on the front surface of the side yoke, and a plurality of printing hammers are arranged in parallel, each forming a closed magnetic path with the permanent magnet, yoke, leaf spring, side yoke, and mask. In the print head of a spring-charged dot line printer placed in the print head, a thin mask is provided in the printing no. This dot-type line printer print head is characterized by a thick mask provided on the print hammer, where the spring warpage is in the opposite direction to the yoke adsorption direction and the forward spring has a large amount of deflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2646382U JPS58128037U (en) | 1982-02-25 | 1982-02-25 | Dot type line printer print head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2646382U JPS58128037U (en) | 1982-02-25 | 1982-02-25 | Dot type line printer print head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58128037U true JPS58128037U (en) | 1983-08-30 |
| JPH0123812Y2 JPH0123812Y2 (en) | 1989-07-20 |
Family
ID=30038421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2646382U Granted JPS58128037U (en) | 1982-02-25 | 1982-02-25 | Dot type line printer print head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014080027A (en) * | 2012-10-17 | 2014-05-08 | Printronix Inc | Line printer hammer bank |
-
1982
- 1982-02-25 JP JP2646382U patent/JPS58128037U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014080027A (en) * | 2012-10-17 | 2014-05-08 | Printronix Inc | Line printer hammer bank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0123812Y2 (en) | 1989-07-20 |
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