JPH036433Y2 - - Google Patents
Info
- Publication number
- JPH036433Y2 JPH036433Y2 JP17795184U JP17795184U JPH036433Y2 JP H036433 Y2 JPH036433 Y2 JP H036433Y2 JP 17795184 U JP17795184 U JP 17795184U JP 17795184 U JP17795184 U JP 17795184U JP H036433 Y2 JPH036433 Y2 JP H036433Y2
- Authority
- JP
- Japan
- Prior art keywords
- hammer
- hammer bank
- printing
- bank
- stopper
- 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.)
- Expired
Links
Landscapes
- Impact Printers (AREA)
Description
【考案の詳細な説明】
本考案は印字ハンマを複数個備えたハンマバン
クを上下２段に配置したダブルハンマバンクに関
するものである。[Detailed Description of the Invention] The present invention relates to a double hammer bank in which hammer banks each having a plurality of printing hammers are arranged in upper and lower stages.
従来例を第２図により説明する。 A conventional example will be explained with reference to FIG.
第２図は、従来のハンマバンク１を示す正面図
である。ハンマバンク１は、印字をつかさどる印
字ハンマ２を複数個備えた上部ハンマバンク３と
下部ハンマバンク４を２個のジヨイントブロツク
５で締結されたものである。締結は、上部ハンマ
バンク３と下部ハンマバンク４に装着されている
印字ハンマ２がそれぞれ決められた間隔になるよ
う精度よく組み立てられている。特に上、下の印
字ハンマ２の垂直方向間隔は、１ドツトラインl1
の間隔に組み立てられている。 FIG. 2 is a front view showing the conventional hammer bank 1. As shown in FIG. The hammer bank 1 is constructed by connecting an upper hammer bank 3 and a lower hammer bank 4, each having a plurality of printing hammers 2 for printing, with two joint blocks 5. The fastening is performed with high precision so that the printing hammers 2 attached to the upper hammer bank 3 and the lower hammer bank 4 are spaced apart from each other at predetermined intervals. In particular, the vertical spacing between the upper and lower printing hammers 2 is 1 dot line l 1
are assembled at intervals of
以上のような構成において、上部ハンマバンク
３の印字ハンマ２のみ駆動された場合、上部ハン
マバンク３側のみ温度が上昇し、上部ハンマバン
ク３全体が膨長する。 In the above configuration, when only the printing hammer 2 of the upper hammer bank 3 is driven, the temperature rises only on the upper hammer bank 3 side, and the entire upper hammer bank 3 expands.
この結果、第２図の破線で示すように上部ハン
マバンク３は、変形し上、下の印字ハンマ２の垂
直方向ピツチがl1からl2に変化してしまう。 As a result, the upper hammer bank 3 is deformed as shown by the broken line in FIG. 2, and the vertical pitch of the upper and lower printing hammers 2 changes from l1 to l2 .
この状態で数字１を印字させたものを、第３図
に示す。 FIG. 3 shows what is printed with the number 1 in this state.
第３図において、変形の発生していない場合の
ドツトポジシヨンは、６と８であるが、変形の発
生した場合は、上部ハンマバンク３の印字ハンマ
２がΔl分移動し、ドツトポジシヨンが６と７に
変わり、印字の乱れが発生する。 In FIG. 3, the dot positions are 6 and 8 when no deformation occurs, but when deformation occurs, the printing hammer 2 of the upper hammer bank 3 moves by Δl, and the dot positions become 6 and 7. This will cause printing errors.
以上の如く、従来の構成においては、上、下ハ
ンマバンク３，４の温度差により、ハンマバンク
３，４に変形がおこり、この結果、印字品質が低
下するという欠点がある。 As described above, the conventional configuration has the drawback that the hammer banks 3 and 4 are deformed due to the temperature difference between the upper and lower hammer banks 3 and 4, resulting in a decrease in print quality.
本考案の目的は、上記した従来技術の欠点をな
くし、上部ハンマバンク側のみ駆動された場合に
おいても、ハンマバンクの変形をなくし、印字品
質の安定化を図るものである。 An object of the present invention is to eliminate the drawbacks of the prior art described above, eliminate deformation of the hammer bank even when only the upper hammer bank side is driven, and stabilize printing quality.
本考案は、ダブルバンクの片側のみが印字され
た場合、上下ハンマバンクの温度差により、印字
ハンマの取付ピツチが中央で一番ズレることに着
目し、中央部にストツパーを取り付けるよう工夫
したものである。 This invention focuses on the fact that when only one side of a double bank is printed, the printing hammer installation pitch shifts the most at the center due to the temperature difference between the upper and lower hammer banks, and has devised a stopper to be installed at the center. be.
本考案における実施例を第１図に示す。 An embodiment of the present invention is shown in FIG.
第１図において、ハンマバンク１の中央にスト
ツパ９を取り付ける。ストツパ９の取り付けは、
上下印字ハンマ２の垂直方向間隔が１ドツトライ
ンl1となるよう、上部ハンマバンク３と下部ハン
マバンク４に、ストツパ９の端部をそれぞれネジ
１０で固定する。 In FIG. 1, a stopper 9 is attached to the center of the hammer bank 1. To install the stopper 9,
The ends of the stopper 9 are fixed to the upper hammer bank 3 and the lower hammer bank 4 with screws 10, respectively, so that the vertical interval between the upper and lower printing hammers 2 is one dot line l1 .
またストツパ９の材質は、SUSなどの非磁性
体を使用し、印字ハンマ２の特性劣化を防止し、
厚みは、リボン走行障害とならない0.1mm前後と
する。 In addition, the stopper 9 is made of a non-magnetic material such as SUS to prevent deterioration of the characteristics of the printing hammer 2.
The thickness should be around 0.1mm so as not to cause any obstruction to ribbon running.
この結果、片側のハンマバンク例えば上部ハン
マバンク３のみ温度が上昇しても、中央部がスト
ツパ９により固定されているので従来例の如く変
形することはない。 As a result, even if the temperature of only one hammer bank, such as the upper hammer bank 3, rises, the central portion is fixed by the stopper 9, so it will not deform as in the conventional example.
従つて、本考案によれば温度上昇による、印字
品質の低下化を防止することができる。 Therefore, according to the present invention, it is possible to prevent print quality from deteriorating due to temperature rise.
本考案において、ストツパ９をSUSの薄板と
したが、細いワイヤとして上、下を締結しても同
様の効果を得ることができる。 In the present invention, the stopper 9 is made of a thin SUS plate, but the same effect can be obtained even if thin wires are used to fasten the top and bottom.
また、ストツパ１を前面に配置したが、後面で
もよい。 Further, although the stopper 1 is arranged on the front side, it may be placed on the rear side.
本考案によれば、温度差による上、下ハンマバ
ンクの変形を、ストツパを中央部に備えたことに
より防ぐようにしたので、印字品質を常に良好な
状態に保つことが可能となる。 According to the present invention, the deformation of the upper and lower hammer banks due to temperature differences is prevented by providing a stopper in the center, making it possible to always maintain good printing quality.
第１図は本考案ハンマバンクの一実施例を示す
正面図、第２図は従来のハンマバンクを示す正面
図、第３図は印字サンプルのドツトポジシヨンを
示す平面図で、ａは正常時、ｂは異常時を示す。
図において１はハンマバンク、２は印字ハン
マ、３は上部ハンマバンク、４は下部ハンマバン
ク、５はジヨイントブロツク、６は下部ハンマ印
字ポジシヨン、７は上部ハンマ印字ポジシヨン、
８は上部ハンマ正規印字ポジシヨン、９はストツ
パ、l1は１ドツトライン、l2は変形後の間隔、Δl
は変形量をそれぞれ示す。
Fig. 1 is a front view showing an embodiment of the hammer bank of the present invention, Fig. 2 is a front view showing a conventional hammer bank, and Fig. 3 is a plan view showing the dot position of a printed sample, where a is normal and b indicates an abnormal situation. In the figure, 1 is a hammer bank, 2 is a printing hammer, 3 is an upper hammer bank, 4 is a lower hammer bank, 5 is a joint block, 6 is a lower hammer printing position, 7 is an upper hammer printing position,
8 is the normal printing position of the upper hammer, 9 is the stopper, l 1 is the one-dot line, l 2 is the interval after deformation, Δl
indicate the amount of deformation, respectively.
Claims (1)
上、下２段に配置したドツトプリンタ用ダブルハ
ンマバンクであつて、これらハンマバンクを中央
部において締結したことを特徴とするダブルハン
マバンク。 A hammer bank equipped with multiple printing hammers,
A double hammer bank for a dot printer arranged in two tiers, upper and lower, characterized in that these hammer banks are fastened at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17795184U JPH036433Y2 (en) | 1984-11-22 | 1984-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17795184U JPH036433Y2 (en) | 1984-11-22 | 1984-11-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6193252U JPS6193252U (en) | 1986-06-16 |
| JPH036433Y2 true JPH036433Y2 (en) | 1991-02-19 |
Family
ID=30735521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17795184U Expired JPH036433Y2 (en) | 1984-11-22 | 1984-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036433Y2 (en) |
-
1984
- 1984-11-22 JP JP17795184U patent/JPH036433Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6193252U (en) | 1986-06-16 |
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