JPH059172Y2 - - Google Patents
Info
- Publication number
- JPH059172Y2 JPH059172Y2 JP1987097763U JP9776387U JPH059172Y2 JP H059172 Y2 JPH059172 Y2 JP H059172Y2 JP 1987097763 U JP1987097763 U JP 1987097763U JP 9776387 U JP9776387 U JP 9776387U JP H059172 Y2 JPH059172 Y2 JP H059172Y2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- head
- diameter
- printing
- thickness
- 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 - Lifetime
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- Impact Printers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はヘツドピンタイプのドツトプリンタ用
印字ワイヤの改良に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement of a printing wire for a headpin type dot printer.
従来のドツトプリンタの印字機構は第３図に示
すように概略構成されている。
The printing mechanism of a conventional dot printer is schematically constructed as shown in FIG.
すなわち印字ワイヤ５のワイヤ部６はガイドパ
イプ７およびワイヤ軸受８によつて摺動自在に軸
承されている。このワイヤ部６はその一端にワイ
ヤボタン９が固定されており、このワイヤボタン
９とばね受け１０との間には復帰バネ１１が弾装
されている。ワイヤボタン９の側方にはアマチユ
ア１２が配置されており、励磁コイル１３によつ
て励磁される鉄心１４によつて吸着される。 That is, the wire portion 6 of the printing wire 5 is slidably supported by a guide pipe 7 and a wire bearing 8. A wire button 9 is fixed to one end of the wire portion 6, and a return spring 11 is elastically loaded between the wire button 9 and the spring receiver 10. An armature 12 is arranged on the side of the wire button 9 and is attracted by an iron core 14 excited by an excitation coil 13.
そしてこのアマチユア１２の一端は前記ワイヤ
ボタン９の後端にまで延在され、他端はばね受け
１５との間に弾装された復帰ばね１６に接し、鉄
心１４の非励磁においてはアマチユア１２の一端
がワイヤボタン９から離れる方向に附勢されてい
る。 One end of this armature 12 extends to the rear end of the wire button 9, and the other end contacts a return spring 16 that is elastically loaded between the armature 12 and the spring receiver 15. One end is biased away from the wire button 9.
従つて、励磁コイル１３に通電されると、アマ
チユア１２は鉄心１４に吸着され、ワイヤボタン
９を衝撃的に打撃し、ワイヤ部６を押し出して印
字を行なうことができる。 Therefore, when the excitation coil 13 is energized, the armature 12 is attracted to the iron core 14, hits the wire button 9 with an impact, and the wire portion 6 can be pushed out to perform printing.
そして現在、印字ワイヤとして使用されている
構造のものは、第４図イに示すようなワイヤ部６
とワイヤボタン９とを、接着、ろう付けなどを行
なつたものと、第４図ロ（特開昭61−94770号）
に示されるように、ワイヤ部６とヘツド部１７と
を一体成形してなるものとがあり、これらが実用
化されている。 The structure currently used as a printing wire is the wire part 6 as shown in Fig. 4A.
and the wire button 9, which are bonded, brazed, etc., and the one shown in Fig. 4B (Japanese Patent Application Laid-Open No. 61-94770)
As shown in FIG. 1, there is a device in which the wire portion 6 and the head portion 17 are integrally molded, and these have been put into practical use.
以上のような構造を有するドツトプリンタ用印
字ワイヤに要求される条件は、高速でかつ確実な
印字動作と長期使用に耐えるための耐衝撃性、耐
疲労性にすぐれていること、および軽量なことで
ある。
The requirements for printing wire for dot printers with the above structure are high-speed and reliable printing operation, excellent impact resistance and fatigue resistance to withstand long-term use, and light weight. be.
しかし、第４図イおよびロに示す従来のものは
接合強度や打撃衝撃に弱く、耐久性に劣り、かつ
重いため、１億ドツト程度の耐久性しかないとい
う問題点があつた。 However, the conventional products shown in FIGS. 4A and 4B are weak in joint strength and impact impact, have poor durability, and are heavy, so they have the problem of only having a durability of about 100 million dots.
本考案者は、上記ヘツド部及びヘツド補強部の
寸法を最適範囲に規定することにより、上記従来
技術の問題を解決するに至つた。すなわち、本考
案は、同一部材によりワイヤ部の一端にヘツド補
強部及びヘツド部を一体に形成したドツトプリン
タ用印字ワイヤにおいて、上記ヘツド部はその直
径D1をワイヤ部の直径D2の1.5〜2.3倍、その厚さ
T1をワイヤ部の直径D2の0.2〜0.5倍とし、ヘツド
補強部はその直径D3をワイヤ部の直径D2の1.2倍
以上で、かつヘツド部直径D1の0.8倍以下、その
厚さT2をワイヤ部の直径D2の0.2〜0.8倍としたこ
とにより耐衝撃性、耐疲労性にすぐれ、しかも軽
量なドツトプリンタ用印字ワイヤを提供するもの
である。
The inventor of the present invention has solved the problems of the prior art by defining the dimensions of the head portion and the head reinforcing portion within an optimal range. That is, the present invention provides a printing wire for a dot printer in which a head reinforcing part and a head part are integrally formed at one end of the wire part using the same material, and the head part has a diameter D1 of 1.5 to 2.3 of the diameter D2 of the wire part. times its thickness
T 1 is 0.2 to 0.5 times the diameter D 2 of the wire section, and the diameter D 3 of the head reinforcement section is at least 1.2 times the diameter D 2 of the wire section and no more than 0.8 times the diameter D 1 of the head section, and its thickness By setting the diameter T 2 to 0.2 to 0.8 times the diameter D 2 of the wire portion, it is possible to provide a printing wire for a dot printer that has excellent impact resistance and fatigue resistance, and is lightweight.
ここで、ヘツド部寸法及びヘツド補強部寸法の
数値限定の根拠を述べる。 Here, the basis for numerically limiting the dimensions of the head portion and the head reinforcement portion will be described.
(イ) ヘツド部の直径は、ワイヤ部の直径の1.5倍
以上なければばねがヘツド部より外に飛び出す
ことを防止できず、また2.3倍を越えるとヘツ
ド部成形時の塑性加工度が大きくなり過ぎ、ヘ
ツド部に割れを生じる。よつて、ヘツド部の直
径はワイヤ部の直径の1.5〜2.3倍とする。(b) The diameter of the head must be at least 1.5 times the diameter of the wire to prevent the spring from jumping out from the head, and if it exceeds 2.3 times, the degree of plastic working during head molding will increase. Too much and cracks occur in the head. Therefore, the diameter of the head section should be 1.5 to 2.3 times the diameter of the wire section.
(ロ) ヘツド部の厚みは、ワイヤ部の直径の0.2倍
以上なければヘツド部の強度を保持できず、
0.5倍を越えると、ヘツド部の重量が大きくな
り、印字スピードを上げることが難しい。よつ
て、ヘツド部の厚みはワイヤ部の直径の0.2倍
〜0.5倍とする。(b) The thickness of the head section must be at least 0.2 times the diameter of the wire section in order to maintain its strength.
If it exceeds 0.5 times, the weight of the head becomes large and it is difficult to increase the printing speed. Therefore, the thickness of the head portion should be 0.2 to 0.5 times the diameter of the wire portion.
(ハ) ヘツド補強部はヘツド部とワイヤ部の接続の
補強及びばねのガイドの役目を果すが、その直
径は、ワイヤ部の直径の1.2倍以上なければ、
補強の役目を果たさない。また、ヘツド部直径
の0.8倍を越えると、D1−D3の値が小さくな
り、そこに座るばねの座りが悪くなり、良好な
ガイドの役目を果さず、ワイヤ部とばねとの接
続現象が起こり、ワイヤ部に偏摩耗が生じる。
よつて、ヘツド補強部の直径はワイヤ部の直径
の1.2倍以上で、かつヘツド部直径の0.8倍以下
とする。(ニ) ヘツド補強部の厚みは、ワイヤ部
の直径の0.2倍以上なければ補強の役目を果た
さず、0.8倍を越えると、ヘツド部の重量が大
きくなり、印字スピードをあげることが難し
い。よつて、ヘツド補強部の厚みはワイヤ直径
の0.2〜0.8倍とする。(c) The head reinforcement part serves to reinforce the connection between the head part and the wire part and to guide the spring, but its diameter must be at least 1.2 times the diameter of the wire part.
Does not serve as reinforcement. Additionally, if it exceeds 0.8 times the diameter of the head, the value of D 1 - D 3 will become small, and the spring sitting there will not sit well and will not serve as a good guide, and the connection between the wire and the spring will deteriorate. This phenomenon occurs, causing uneven wear on the wire portion.
Therefore, the diameter of the head reinforcing section should be at least 1.2 times the diameter of the wire section and at most 0.8 times the diameter of the head section. (d) If the thickness of the head reinforcing part is not less than 0.2 times the diameter of the wire part, it will not function as a reinforcement, and if it exceeds 0.8 times, the weight of the head part will increase and it will be difficult to increase the printing speed. Therefore, the thickness of the head reinforcing portion should be 0.2 to 0.8 times the wire diameter.
〔実施例〕
以下、本考案の一実施例を図面に基づいて説明
する。[Example] Hereinafter, an example of the present invention will be described based on the drawings.
第１図に示すように、ハイス鋼を0.3mmφ迄伸
線加工してワイヤを形成し、上記ワイヤを硬度
Hv300迄焼鈍加工し、約40mmの所定の寸法に切断
してワイヤ部１を形成する。次に、上記ワイヤ部
１の一端にヘツダー加工を施し、ヘツド部２を形
成する。この時、同時に第１図イ，ロに示される
ようなリブ状のヘツド補強部３を設けてドツトプ
リンタ用印字ワイヤ４を構成する。 As shown in Figure 1, a wire is formed by drawing high-speed steel to a diameter of 0.3 mm, and the wire is
The wire portion 1 is formed by annealing to Hv300 and cutting to a predetermined size of about 40 mm. Next, one end of the wire portion 1 is subjected to header processing to form a head portion 2. At this time, a rib-shaped head reinforcing portion 3 as shown in FIGS. 1A and 1B is also provided to constitute a printing wire 4 for a dot printer.
上記ヘツド部２の直径D1はばねが抜けなくす
るために、ワイヤ部１の直径D2の1.5〜2.5倍、ヘ
ツド部２の厚さT1はばねによる摩耗及びアマチ
ユアの衝撃摩耗に耐えるようにするため、ワイヤ
部１の直径D2の0.2倍〜0.5倍にする。また、ヘツ
ド補強部３はアマチユアの衝撃によるヘツド部２
の破壊防止とばねの移動による偏摩耗を防ぎ、ま
たばねがヘツド部２より飛び出すことを防止する
ため、その直径D3はワイヤ部１の直径D2の1.2倍
以上でかつヘツド部直径D1の0.8倍以下で、その
厚さT2はワイヤ部１の直径D2の0.2倍〜0.8倍にす
る。 The diameter D 1 of the head part 2 is 1.5 to 2.5 times the diameter D 2 of the wire part 1 to prevent the spring from coming off, and the thickness T 1 of the head part 2 is to resist the abrasion caused by the spring and the impact abrasion of the armature. To achieve this, the diameter D2 of the wire portion 1 should be 0.2 to 0.5 times. In addition, the head reinforcement part 3 prevents the head part 2 from being affected by the impact of the amateur.
In order to prevent damage to the wire, prevent uneven wear due to movement of the spring, and prevent the spring from popping out from the head portion 2, the diameter D 3 is at least 1.2 times the diameter D 2 of the wire portion 1 and the head portion diameter D 1. The thickness T 2 is 0.2 to 0.8 times the diameter D 2 of the wire portion 1.
ところで、上記ヘツド補強部３のリブは、図面
では４個設けたが、等間隔に複数個設けることが
できる。また、直径D3は各リブの先端を結んだ
仮想円の直径である。 Incidentally, although four ribs are provided in the head reinforcing portion 3 in the drawings, a plurality of ribs may be provided at equal intervals. Further, the diameter D 3 is the diameter of an imaginary circle connecting the tips of each rib.
上記本考案の実施例の各部の寸法は下記のとお
りである。 The dimensions of each part of the above embodiment of the present invention are as follows.
ヘツド部２の直径D1 ：0.56mmφ
ヘツド部２の厚さT1 ：0.10mm
ワイヤ部１の直径D2 ：0.25mmφ
印字ワイヤ４の長さL1 ：30mm
ヘツド補強部３の直径D3：0.42mmφ
ヘツド補強部３の厚さT2 ：0.2mm
上記実施例の場合、D1／D2≒2.3，T1／D2＝
0.4，D3／D2＝1.68，D3／D1＝0.75，T2／D2＝0.8
である。 Diameter of head part 2 D 1 : 0.56mmφ Thickness of head part 2 T 1 : 0.10mm Diameter of wire part 1 D 2 : 0.25mmφ Length of printing wire 4 L 1 : 30mm Diameter of head reinforcement part 3 D 3 : 0.42mmφ Thickness of head reinforcement part 3 T 2 : 0.2mm In the above example, D 1 /D 2 ≒2.3, T 1 /D 2 =
0.4, D 3 /D 2 = 1.68, D 3 /D 1 = 0.75, T 2 /D 2 = 0.8
It is.
さらに、本考案の印字ワイヤ４はヘツダー加工
後、焼入れ、焼戻しにより硬度Hv900、抗折力
500Kg／mmに仕上げるものである。 Furthermore, the printing wire 4 of the present invention has a hardness of Hv900 and transverse rupture strength by quenching and tempering after header processing.
It is to be finished to 500Kg/mm.
次に、第２図は本考案の他の実施例を示し、ヘ
ツド補強部３の形状をワイヤ部１からヘツド部２
にかけて徐々に拡径したラツパ状に形成したもの
である。なお、この補強部３はテーパ状とする
か、全体を曲面で結んだ形状としてもよい。 Next, FIG. 2 shows another embodiment of the present invention, in which the shape of the head reinforcing part 3 is changed from the wire part 1 to the head part 2.
It is formed into a lattice shape that gradually expands in diameter. Note that this reinforcing portion 3 may be tapered or may have a shape in which the entirety is connected by a curved surface.
上記実施例の各部の寸法は下記のとおりであ
る。 The dimensions of each part of the above embodiment are as follows.
ヘツド部直径D1 ：0.65mmφ
ヘツド部厚さT1 ：0.15mm
ヘツド補強部直径D3 ：0.45mmφ
ヘツド補強部厚さT2 ：0.2mm
ワイヤ部直径D2 ：0.3mmφ
印字ワイヤ長さL1 ：40mm
上記実施例の場合、D1／D2≒2.2，T1／D2＝
0.5mm，D3／D2＝1.5，D3／D1≒0.7，T2／D2≒0.7
である。 Head diameter D 1 : 0.65mmφ Head thickness T 1 : 0.15mm Head reinforcement diameter D 3 : 0.45mmφ Head reinforcement thickness T 2 : 0.2mm Wire diameter D 2 : 0.3mmφ Printing wire length L 1 :40mm In the case of the above example, D 1 /D 2 ≒2.2, T 1 /D 2 =
0.5mm, D 3 /D 2 = 1.5, D 3 /D 1 ≒0.7, T 2 /D 2 ≒0.7
It is.
なお、上記各実施例において、ワイヤはハイス
鋼を用いたが、炭素鋼、マルエージング鋼、
SiCr線等を用いることもできる。 In each of the above examples, high-speed steel was used for the wire, but carbon steel, maraging steel,
SiCr wire etc. can also be used.
上記ヘツド付印字ワイヤをドツトプリンタに装
着し、印字テストを行なつたところ従来の印字ワ
イヤの約４倍の４億ドツトの寿命となつた。 When the above printing wire with a head was attached to a dot printer and a printing test was conducted, it had a lifespan of 400 million dots, about four times that of conventional printing wires.
以上の如く、本考案のドツトプリンタ用印字ワ
イヤは、ヘツド部及びヘツド補強部の直径の厚さ
とワイヤ部の直径を一定の関係を有する構成にな
したので、次のような多くの実用的効果を奏す
る。
As described above, the printing wire for dot printers of the present invention has a configuration in which the thickness of the diameter of the head portion and the head reinforcing portion and the diameter of the wire portion have a certain relationship, so that it has many practical effects as follows. play.
ばねのヘツド部よりの飛び出しが防止でき、ヘ
ツド部成形時の塑性加工度を抑えてヘツド部に生
じる割れが防止できる。また、ヘツド部の補強を
保持し、ヘツド部及びヘツド補強部の重量を抑え
て印字スピードを上げることができる。更に、ワ
イヤ部とばねとの接触現象が生じず、ワイヤ部の
偏摩耗が防止でき、印字ワイヤの寿命が４倍に延
長できる。 It is possible to prevent the spring from popping out from the head part, suppress the degree of plastic working during molding of the head part, and prevent cracks from occurring in the head part. Further, the head portion can be reinforced, the weight of the head portion and the head reinforcement portion can be reduced, and printing speed can be increased. Furthermore, contact phenomenon between the wire portion and the spring does not occur, uneven wear of the wire portion can be prevented, and the life of the printing wire can be extended four times.
等の大きい考案である。This is a big idea.
第１図は本考案に係るドツトプリンタ用印字ワ
イヤの一実施例を示し、イは正面図、ロはＡ−Ａ
線断面図、第２図は本考案の異なる実施例を示
し、イは正面図、ロは側面図、第３図はドツトプ
リンタにおける印字機構の概略図、第４図イ，ロ
は夫々従来の印字ワイヤを示し、イは断面図、ロ
は正面図である。
１，６……ワイヤ部、２，１７……ヘツド部、
３……ヘツド補強部、４，５……印字ワイヤ、７
……ガイドパイプ、８……ワイヤ軸受、９……ワ
イヤボタン、１０……ばね受け、１１……ばね、
１２……アマチユア、１３……励磁コイル、１４
……鉄心。
FIG. 1 shows an embodiment of the printing wire for a dot printer according to the present invention, in which A is a front view and B is an A-A
2 shows different embodiments of the present invention, A is a front view, B is a side view, FIG. 3 is a schematic diagram of a printing mechanism in a dot printer, and FIGS. 4 A and B are conventional printing, respectively. The wire is shown, with A being a sectional view and B being a front view. 1, 6... Wire part, 2, 17... Head part,
3... Head reinforcement part, 4, 5... Printing wire, 7
... Guide pipe, 8 ... Wire bearing, 9 ... Wire button, 10 ... Spring receiver, 11 ... Spring,
12... Amateur, 13... Excitation coil, 14
... Iron core.
Claims (1)
及びヘツド部を一体に形成したドツトプリンタ用
印字ワイヤにおいて、上記ヘツド部はその直径
D1をワイヤ部の直径D2の1.5〜2.3倍、その厚さT1
をワイヤ部の直径D2の0.2〜0.5倍とし、ヘツド補
強部はその直径D3をワイヤ部の直径D2の1.2倍以
上で、かつヘツド部直径D1の0.8倍以下、その厚
さT2をワイヤ部の直径D2の0.2〜0.8倍としたこと
を特徴とするドツトプリンタ用印字ワイヤ。 In a printing wire for a dot printer in which a head reinforcing part and a head part are integrally formed at one end of the wire part using the same material, the head part has a diameter
D 1 is 1.5 to 2.3 times the diameter of the wire part D 2 , and its thickness T 1
is 0.2 to 0.5 times the diameter D 2 of the wire section, and the diameter D 3 of the head reinforcement section is at least 1.2 times the diameter D 2 of the wire section and no more than 0.8 times the diameter D 1 of the head section, and its thickness T A printing wire for a dot printer, characterized in that 2 is 0.2 to 0.8 times the diameter D2 of the wire portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987097763U JPH059172Y2 (en) | 1987-06-24 | 1987-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987097763U JPH059172Y2 (en) | 1987-06-24 | 1987-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS643440U JPS643440U (en) | 1989-01-10 |
| JPH059172Y2 true JPH059172Y2 (en) | 1993-03-08 |
Family
ID=31323451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987097763U Expired - Lifetime JPH059172Y2 (en) | 1987-06-24 | 1987-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH059172Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH064339B2 (en) * | 1988-02-10 | 1994-01-19 | 株式会社精工舎 | Printing wire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2542200B2 (en) * | 1986-11-13 | 1996-10-09 | トクセン工業株式会社 | Wire-dot head |
-
1987
- 1987-06-24 JP JP1987097763U patent/JPH059172Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS643440U (en) | 1989-01-10 |
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