JPS60262667A - Guide member for printing wire in dot printer and manufacture thereof - Google Patents
Guide member for printing wire in dot printer and manufacture thereofInfo
- Publication number
- JPS60262667A JPS60262667A JP11941484A JP11941484A JPS60262667A JP S60262667 A JPS60262667 A JP S60262667A JP 11941484 A JP11941484 A JP 11941484A JP 11941484 A JP11941484 A JP 11941484A JP S60262667 A JPS60262667 A JP S60262667A
- Authority
- JP
- Japan
- Prior art keywords
- guide member
- printing wire
- radius
- guide
- mold
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
- B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
- B41J2/235—Print head assemblies
- B41J2/25—Print wires
- B41J2/255—Arrangement of the print ends of the wires
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明はたとえばコンピュータなどの印字装置として使
われるドツトプリンタの印字ワイヤの案内部材およびそ
の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a guide member for a printing wire of a dot printer used as a printing device for a computer, etc., and a method for manufacturing the same.
背景技術 第１図は本発明の一実施例を説明するための図である。Background technology FIG. 1 is a diagram for explaining one embodiment of the present invention.
ドツトプリンタヘッド１け、基本的には下部ヨーク２と
、アマチャ３と、永久磁石４と。A dot printer head basically consists of a lower yoke 2, an armature 3, and a permanent magnet 4.
印字ワイヤ５と、印字ワイヤ５に挿通されて案内する案
内部材６，７，８，９，１０．！：を含む。下部ヨーク
２けドツトプリンタヘッド１の軸線Ａに関し周方向に間
隔をあけて複数個配置さカる。各下部ヨーク２け半径方
向外方の外方脚部１１と。The printing wire 5 and the guide members 6, 7, 8, 9, 10 that are inserted through and guided by the printing wire 5. ! :including. A plurality of lower yokes are arranged at intervals in the circumferential direction with respect to the axis A of the two-digit dot printer head 1. each lower yoke with two radially outer outer legs 11;
外方脚部１１ｘり半径方向内方に位置する中央脚部１２
と、中央脚部１２よりけ半径方向内方に位置する内方脚
部１３とを含む。下部ヨーク２の第１図の上方ｌこけ上
部ヨーク１４が設けられ、上部１４の半径方向外方１こ
け、下部ヨーク２と対応して側部ヨーク１５が設けられ
る。上部ヨーク１４の第１図の下方表面には環状？なす
永久磁石４が接着剤などで固定される。永久磁石４の第
１図の下方表面には各下部ヨーク２１こ対応して、永久
磁石４からの磁束を集中する磁極片１６が永久磁石４に
接着剤などで固定される。印字ワイヤ５の、第１図の上
方端部１こけ頭部１７が設けられる。また下部ヨーク２
の中央脚部１２４巻回してコイル１８が設けられる。Outer leg 11x Central leg 12 located radially inward
and an inner leg 13 located radially inward from the center leg 12. An upper yoke 14 is provided at the upper part of the lower yoke 2 in FIG. The lower surface of the upper yoke 14 in FIG. 1 has an annular shape? A permanent magnet 4 is fixed with an adhesive or the like. On the lower surface of the permanent magnet 4 in FIG. 1, a magnetic pole piece 16 for concentrating the magnetic flux from the permanent magnet 4 is fixed to the permanent magnet 4 with an adhesive or the like, corresponding to each lower yoke 21. At the upper end 1 in FIG. 1 of the printing wire 5, a knurled head 17 is provided. Also, lower yoke 2
The coil 18 is provided by winding the central leg 124 of the coil 18 .
以上のような構成を有するドツトプリンタヘッドｌにお
りて、コイル１８に電流が流されると。When a current is applied to the coil 18 in the dot printer head l having the above configuration.
下部ヨーク２ＶｉＩ！磁石として働らき、アマチャ３け
下部ヨーク２の内方脚部１３によって、吸引さ力１、中
央脚部１２の第１図の上方の表面との当接部が中央脚部
１２と磁気結合され、この当接部を支点としてアマチャ
３け時計回り方向に角変位する。したがって印字ワイヤ
５の頭部１７けアマチャ３Ｉこよって第１図の下方に押
圧され、印字ワイヤ５の第１図の下方の先端部は＠１図
の下方蓼こ突出１．、！Ｊポン１９’Ｔｈ介してプラテ
ン２０ Ｊｊ７１Ｅ ２１を叩く。Lower yoke 2ViI! Working as a magnet, the attracting force 1 is caused by the inner leg 13 of the lower yoke 2 of the armature 3, and the contact portion of the center leg 12 with the upper surface of FIG. 1 is magnetically coupled to the center leg 12. , the armature is angularly displaced three times in the clockwise direction using this contact portion as a fulcrum. Therefore, the head 17 of the printing wire 5 is pressed downward in FIG. 1 by the armature 3I, and the lower tip of the printing wire 5 in FIG. ,! Hit platen 20 Jj71E 21 via Jpon 19'Th.
このよう１こしてドツトプリンタヘッド１による印字動
作が行なわれる。またこの印字動作の間。In this way, the printing operation by the dot printer head 1 is performed. Also during this printing operation.
ドツトプリンタヘッドｌけ駆動手段（図示せず）Ｉｃｘ
つて第１図の左右方向ｌこ移動させられる。ドツトプリ
ンタヘッド１け前述のようｔこ移動しつつ。Dot printer head driving means (not shown) Icx
Then, it is moved l in the left and right direction in FIG. One dot printer head was moved as described above.
下部ヨーク２が選択的に励磁さカ、、励磁された下部ヨ
ークに対応する印字ワイヤ５が選択的ｌζ紙２１を叩く
ことによって必要な文字などが印字され６・′−０とき
案内部材１０ｆ′ｔ−ｆｉとえは続づ 、セラミックス
などの高硬度の材料から形成され。The lower yoke 2 is selectively energized, and the printing wire 5 corresponding to the energized lower yoke selectively strikes the lζ paper 21 to print necessary characters, etc. 6.'-0, the guide member 10f' T-FI and other metals are made from highly hard materials such as ceramics.
印字ワイヤ５を最終的に印字位置に導く。The printing wire 5 is finally guided to the printing position.
＠２図Ｖｉ、本発明に従う案内部材１０に対応する先行
技術の案内部材１０ａの平面図である。第３図は第２図
の切断面線ＩＩ−Ｍから見た断面図である。＠２図の左
右方向け、第１図の紙面１こ垂直である。また第３図の
軸線Ｃｉｊ、軍１図の軸線Ａと一致する。@2 Figure Vi is a plan view of a prior art guide member 10a corresponding to the guide member 10 according to the invention. FIG. 3 is a sectional view taken along section line II-M in FIG. 2. @ Directed left and right in Figure 2, perpendicular to the paper surface of Figure 1. Also, the axis Cij in Figure 3 coincides with the axis A in Army Figure 1.
案内部材１０ａの形状は略直方体全なし、第２図に示さ
れ−る案内部材１．０ ａの表面２５から１表面２５と
対向する他の表面２６を貫通して９個の案内孔２７が設
けられている。各案内孔２７Ｈ相互に連続するように設
けられ、第２図の軸線上に一直線状に配設されている。The shape of the guide member 10a is approximately a rectangular parallelepiped, and nine guide holes 27 are formed through the surface 25 of the guide member 1.0a shown in FIG. It is provided. The guide holes 27H are provided so as to be continuous with each other, and are arranged in a straight line on the axis shown in FIG.
案内孔２７の内面は案内部材１０ａの表面２５付近に、
曲率半径の小さな彎曲部を有する彎曲端部２８を有し１
表面２６付近１こけ同様の彎曲端部２９を有する。彎曲
端部２８に連続して曲率半径の大きな彎曲部３０が設け
られ、彎曲部３０ｔ−を彎曲端部２９と連続する。The inner surface of the guide hole 27 is located near the surface 25 of the guide member 10a,
1 having a curved end portion 28 having a curved portion with a small radius of curvature;
It has a curved end 29 similar to that of the first moss near the surface 26. A curved portion 30 having a large radius of curvature is provided continuously to the curved end portion 28, and the curved portion 30t- is continuous with the curved end portion 29.
以上の↓うな形状を有する案内部材４０けホットプレス
法、押出し成形法などで製作さ力、でおり。40 guide members with the above ↓ shape were manufactured using hot press method, extrusion molding method, etc.
型から取出された一次製品に対する二次加工として、前
記−次製品の外周の仕上げ工程とけ別途に形成された案
内孔２７ケ、たとえば金属材料から成る線材（たとえば
ピアノ線）などで研摩材料の微粉末を介在させて研摩す
る研磨工程が必要である。この研磨工程にＸつで案内孔
２７０表面粗さの向上と、前述した彎曲面の形成全行な
っている。As a secondary process for the primary product taken out of the mold, the outer periphery of the secondary product is finished, and 27 guide holes are formed separately, for example, a wire rod made of a metal material (for example, piano wire) is used to finely apply the abrasive material. A polishing step is required in which polishing is performed using powder. In this polishing process, the surface roughness of the guide hole 270 is improved and the curved surface described above is formed.
このような製造方法では、前述した研磨工程を含むなど
、製造工程が複雑であり、製造時における製造時間の短
縮化や、製造コストの低減化が困難であるとｂう問題が
あった。Such a manufacturing method has a problem in that the manufacturing process is complicated, including the above-mentioned polishing process, and it is difficult to shorten the manufacturing time and reduce the manufacturing cost.
目 的
本発明の第１の目的は、ドツトプリンタの印字ワイヤと
の摺擦？可及的に滑らかにし、かつその製造時ｆこおい
て製造工程の格段に簡略化された改良されたドツトプリ
ンタの印字ワイヤの案内部材を提供することである。Purpose The first object of the present invention is to prevent rubbing against the printing wire of a dot printer. It is an object of the present invention to provide an improved guide member for a printing wire of a dot printer which is as smooth as possible and whose manufacturing process is greatly simplified.
本発明の＠２の目的ｆ″ｉ、ｉ、ドツトプリンタヘツド
ワイヤを案内する案内部材を金型を用いて製造する製造
方法において、その製造工程が格段に簡略化さ７１−た
改良されたドツトプリンタの印字ワイヤの案内部材の製
造方法？提供することである。Objective of @2 of the present invention f''i, i, An improved dot printer in which the manufacturing process is significantly simplified in a manufacturing method of manufacturing a guide member for guiding a dot printer head wire using a mold. A method of manufacturing a guide member for a printing wire is provided.
実施例
第４図〜第７図は本発明の一実施例のドツトプリンタヘ
ッド１の案内部材１０ｉ説明するための図であり、第８
図〜第１０図は案内部材Ｉｎｆｃ製造する製造工程全説
明するための図である。第４図〜第１０図を参照して案
内部材１０およびその製造方法を説明する。案内部材１
０の形状は略直方体状に形成さ力、複数の案内孔３０ａ
〜３０ｉから成る案内孔３０が形成される。案内孔３０
け。Embodiment FIGS. 4 to 7 are diagrams for explaining the guide member 10i of the dot printer head 1 according to an embodiment of the present invention.
Figures 1 to 10 are diagrams for explaining the entire manufacturing process for manufacturing the guide member Infc. The guide member 10 and its manufacturing method will be described with reference to FIGS. 4 to 10. Guide member 1
0 is formed into a substantially rectangular parallelepiped shape, and has a plurality of guide holes 30a.
A guide hole 30 consisting of ~30i is formed. Guide hole 30
hair.
前記複数の案内孔３０ａ〜３０ｉが連続して形成され、
案内部材ＩＯの実装時における。印字さ力。The plurality of guide holes 30a to 30i are formed continuously,
At the time of mounting the guide member IO. Printed force.
る紙２１に臨む表面３１１ζ表わり、る形状Ｖ′ｉ第４
図示のようになる。すなわち前記表面３１の図心を通り
第４図の左右方向に延びる軸線Ｘ上に、各案内孔３０ａ
〜３０ｉの図心が配置さハる。The surface 311ζ facing the paper 21 appears, and the shape V'i 4th
It will look like the illustration. That is, each guide hole 30a is located on the axis X that passes through the centroid of the surface 31 and extends in the left-right direction in FIG.
The centroid of ~30i is placed.
このとき案内孔３０の一部分の拡大図である第７図に示
さ力るように、各案内孔３０ａ〜３０ｉは半径ＲＩＴｈ
有する円弧の一部を有し、そり、らの円弧は半径Ｒ２Ｔ
ｈ有する円弧の一部分によって滑らかに接続される。半
径Ｒ１と半径Ｒ２の関係は下式で表わされる。At this time, as shown in FIG. 7, which is an enlarged view of a portion of the guide hole 30, each guide hole 30a to 30i has a radius RITh.
has a part of a circular arc with radius R2T.
They are smoothly connected by a portion of an arc having h. The relationship between radius R1 and radius R2 is expressed by the following formula.
Ｒ１＞Ｒ２・・・＋１＋ また案内孔３０の内壁面３２け、案内孔３０を。R1>R2...+1+ Also, the inner wall surface 32 of the guide hole 30, the guide hole 30.
前記表面３１に対向する表面３３から表面３１に向う方
向１こ押通される印字ワイヤ５の先端部側では、一様な
曲率半径を有する円筒状に形成されている。また内壁面
３２の残余の部分、すなわち案内孔３０の、印字ワイヤ
５０基端部側の部分は表面３１から表面３３ｉご向う方
向に関して、その曲率半径が漸増し、アール付けされた
いわゆるラッパ形の形状４成している。The tip end side of the printing wire 5, which is pushed through from the surface 33 opposite to the surface 31 in one direction toward the surface 31, is formed into a cylindrical shape with a uniform radius of curvature. In addition, the remaining portion of the inner wall surface 32, that is, the portion of the guide hole 30 on the base end side of the printing wire 50, has a radius of curvature that gradually increases in the direction from the surface 31 to the surface 33i, and has a rounded so-called trumpet shape. It has 4 shapes.
案内孔３０の内壁面３２け以上のような形状？有してお
り、したがって表面３１．３３のどちらから印字ワイヤ
５の先端が突出して、印字される紙２１に臨むかけ一意
ｌこ定められる。第４図〜第１図示の案内部材１０の場
合では１表面３１が第１図の下方になり、表面３３が表
面３１よりけ第１図上万ｌどなる。このＸう１ご案内部
材１０の取り付は方向を一意に定めるために、案内部材
１０の一部分に面取りがされて位置決め部３４が形成さ
れる。Is the shape like 32 or more inner wall surfaces of the guide hole 30? Therefore, from which side of the surfaces 31 and 33 the tip of the printing wire 5 protrudes and faces the paper 21 to be printed is uniquely determined. In the case of the guide member 10 shown in FIGS. 4 to 1, one surface 31 is located below in FIG. In order to uniquely determine the mounting direction of the X-shaped guide member 10, a positioning portion 34 is formed by chamfering a portion of the guide member 10.
以とのような形状を有する案内部材１０を製造するにあ
たっては、たとえば射出成形法によって行い、第８図示
の２うな製造工程を経ることになる。第９図は第８図の
射出成形時に用いられる成形装置（図示せず）の金型の
一部分の断面図であり、第１０図は第９図の成形装置ｆ
こ用いられる型部材４０の拡大斜視図である。第４図〜
第１０図を用いて第４図の案内部材１０の製造方法？説
明する。In manufacturing the guide member 10 having the shape described above, for example, injection molding is used, and two manufacturing steps shown in FIG. 8 are performed. 9 is a sectional view of a part of the mold of the molding device (not shown) used in the injection molding of FIG. 8, and FIG. 10 is a sectional view of a part of the mold of the molding device f of FIG.
It is an enlarged perspective view of the mold member 40 used here. Figure 4~
How to manufacture the guide member 10 shown in FIG. 4 using FIG. 10? explain.
ステップｎ１の射出成形に用いられる第９図示の金型け
、可動型部である上型４１と、固定型部である下型４２
とを含む。上型４１には成形材料を注出するノズル（図
示せず）と当接するノズル受は部４３とスプル一部４４
とが形成される。下型４２１こけランナ部４５とゲート
部４６とが設けられ、製品が形成されるキャビティ４７
が設けられる。またランナ部４５の一部分には、係止部
材４８が嵌入さね、キャビティ４７には案内部材１００
案内孔３０を形成するためのビン４９を有する型部材４
０が嵌着される。The mold holder shown in FIG. 9 used for injection molding in step n1 includes an upper mold 41 which is a movable mold part and a lower mold 42 which is a fixed mold part.
including. The upper die 41 has a nozzle receiver portion 43 and a sprue portion 44 that come into contact with a nozzle (not shown) for pouring molding material.
is formed. A cavity 47 in which a lower mold 421 is provided with a moss runner part 45 and a gate part 46, and in which a product is formed.
is provided. Further, a locking member 48 is fitted into a portion of the runner portion 45, and a guide member 100 is fitted into the cavity 47.
Mold member 4 having a pin 49 for forming a guide hole 30
0 is inserted.
型部栃４０の拡大斜視図である＠１０図に示されるよう
に、ビン４９け、案内部材１０の各案内孔３０ａ〜３０
ｉにそれぞれ対応した突起４９ａ〜４９ｉが連続した形
状を有する。各突起４９ａ〜４９ｉの高さＨけ下式で表
わせる。As shown in FIG.
The protrusions 49a to 49i corresponding to i have a continuous shape. The height of each protrusion 49a to 49i can be expressed by the following equation.
Ｈ＝を十α ・・・（２）
ここでｔけ案内部材１０の第５図の上下方向の厚みであ
り、αけ後述する研削、研磨工程の削代である。上記の
高さＨ？有するビン４９の遊端部５０からン２＋αの距
離までは、一様な曲率半径を有する軸部５１である。前
記軸部５１に連続して。H=10α (2) Here, t is the thickness of the guide member 10 in the vertical direction in FIG. 5, and α is the cutting allowance for the grinding and polishing process described later. The above height H? The shaft portion 51 has a uniform radius of curvature from the free end portion 50 of the bin 49 to a distance of n2+α. Continuing from the shaft portion 51.
基台部５２に近づくに従い、その曲率半径が漸増し、い
わゆるラッパ状を成す拡大部５３が設けられる。As the base portion 52 approaches, the radius of curvature thereof gradually increases, and an enlarged portion 53 having a so-called trumpet shape is provided.
拡大部５３の、＠１０図の軸線りとは垂直な切断面から
見た形状は、半径Ｒ】の円弧の一部分を成す。また基台
部５２の一部分は面取りを施され。The shape of the enlarged portion 53 viewed from a cross section perpendicular to the axis in Figure @10 forms a part of a circular arc with a radius R]. Further, a portion of the base portion 52 is chamfered.
案内部材１０の位置決め部３４を形成するキャビティ４
７の形状に対応する。Cavity 4 forming positioning part 34 of guide member 10
It corresponds to the shape of 7.
上述のＸうな形状全盲するビン４９を含む型部材４０を
第９図のようｌど下型４２に嵌着する。係止部材４８に
Ｘつてランナ部４５け必要な容積＋コ制限される。ここ
で、キャビティ４７の第９図の上下方向の高さｈけ下式
で表わせる。The mold member 40 including the aforementioned X-shaped completely blind bottle 49 is fitted into the lower mold 42 as shown in FIG. The required volume of the runner section 45 is limited by the locking member 48. Here, the height h of the cavity 47 in the vertical direction shown in FIG. 9 can be expressed by a formula.
ｈ＝ｔ＋ｄ ＋β ・・・（岨
ここでｔ、αは第２式と同一であり、βけ第９図のビン
４７の遊端部４９から下型４１寸での距離である。h=t+d+β...(Here, t and α are the same as in the second formula, and β is the distance from the free end 49 of the bottle 47 in FIG. 9 to the lower mold 41 dimension.
ノズル受は部４３にノズル（図示せず）を密着させ成形
材料を金型内に注入する。ここで成形材料は、たとえば
セラミックス系材料の微粉末と。The nozzle receiver brings a nozzle (not shown) into close contact with the part 43 and injects the molding material into the mold. Here, the molding material is, for example, a fine powder of a ceramic material.
有機溶剤、離型剤、粘稠剤などとの複重材料が用いられ
る。注入された成形材料は、スプル一部４４、ランナ部
４５．キャビティ４７１ζ充満して成形される。ここで
第３式のβの長さを有するキャビティ４７内の間１１ｉ
４７３は、キャビティ４７内を成形材料が充分に流動
して、空Ｖａヲ生じることなく均一に充満するために設
けらｈる。Multilayer materials with organic solvents, mold release agents, thickeners, etc. are used. The injected molding material is applied to the sprue portion 44, the runner portion 45. The cavity 471ζ is filled and molded. Here, the space 11i in the cavity 47 having the length β of the third equation
473 is provided in order for the molding material to flow sufficiently in the cavity 47 and to uniformly fill the cavity 47 without creating an empty space Va.
成形材料が固化すると、可動型部である上型４１が第９
図の上方に移動する。このとき固化した成形材料は、ラ
ンナ部４５において係止部材４８の係止面５５によって
下型４２に固定され、上型４１の移動に１って下型４２
から遊離することが防がれる。次に係止部材４８おＸび
型部材４０が第９図の上方−＼移動することにより、被
成形品が取出される。取出された被成形品は不要部を除
去された後に、ステップｎ２で乾燥されて不要な気体成
分を除去嘔わ、る。次に焼成工種ヲ経てステップｎ ３
に至り外周仕上げを施されステップｎ４で完成された案
内部材１０？得る。When the molding material solidifies, the upper mold 41, which is a movable mold part, moves to the ninth
Move up the diagram. The solidified molding material at this time is fixed to the lower mold 42 by the locking surface 55 of the locking member 48 in the runner part 45, and as the upper mold 41 moves, the molding material is fixed to the lower mold 42.
It is prevented from being released from. Next, the locking member 48 and the mold member 40 are moved upward in FIG. 9, and the molded product is taken out. After unnecessary parts are removed from the taken-out molded product, it is dried in step n2 to remove unnecessary gas components. Next, after the firing process, step n3
The guide member 10 whose outer periphery has been finished and completed in step n4? obtain.
案内部材１００以上の２うな製造方法においては、前述
した拡大部５３全有するビン部４９を備えた型部材４０
を用いて案内部材１０を製造する。In the two manufacturing methods for the guide member 100 or more, the mold member 40 is provided with the bottle portion 49 having the entire enlarged portion 53 described above.
The guide member 10 is manufactured using the following.
↓つでビン４９の表面が充分滑らか！ご仕とげられてい
れば、得られる案内部材ｌＯの内壁面３２に関して、Ｉ
Ｊ２図、第３図の説明で述べた金属線材による研摩と彎
曲面の形成の工程が不必要Ｉごなる。↓ makes the surface of bottle 49 smooth enough! If the inner wall surface 32 of the resulting guide member 10 is
The steps of polishing with the metal wire and forming the curved surface described in the explanation of FIGS. J2 and FIG. 3 are unnecessary.
また型部材４０のビン４９の形状け、基本的には基台部
５２に向って曲率半径が漸増する形状であるので、前述
した成形工程において、下型４２から容易に取出すこと
ができる。Furthermore, since the shape of the bottle 49 of the mold member 40 is basically such that the radius of curvature gradually increases toward the base portion 52, it can be easily taken out from the lower mold 42 in the above-described molding process.
以上のようにして案内部材１０會得ることができる。The guide member 10 can be obtained in the above manner.
上述の実施例においては、案内孔３０け各印字ワイヤ５
が挿通する各案内孔３０ａ〜３０ｉが連続した形状とし
て形成されたが、他の実施例として各案内孔３０ａ〜３
０ｉが相互１こ隔壁を介して分離された形状を有しても
よい。In the embodiment described above, each printing wire 5 has 30 guide holes.
Although each of the guide holes 30a to 30i through which the
Oi may have a shape in which they are separated from each other by a partition wall.
また案内孔３０を構成する各案内孔３０ａ〜３０１の個
数は９個であったが、この個数は必要とされる印字ワイ
ヤ５０本数に対応してその他の個数であってもよい。Further, although the number of guide holes 30a to 301 constituting the guide hole 30 was nine, this number may be any other number depending on the number of 50 printing wires required.
案内部材】０を形成する材料はセラミックス基として説
明したが１本発明け、完成された製品が高硬度を有し、
その表面が充分１こなめらかｌこできるような材料に関
連して広〈実施することができる。Although the material forming the guide member 0 was explained as being ceramic-based, the present invention also shows that the completed product has high hardness,
A wide variety of methods can be used in connection with materials whose surfaces can be sufficiently smoothed.
前述の実施例では案内部材１０の成形全射出成形法によ
って説明したが１本発明はビン４９を有する金型を使用
して成形を行う成形法に関連して広〈実施することがで
きる。In the above-mentioned embodiment, the guide member 10 was formed using a total injection molding method, but the present invention can be broadly implemented in connection with a molding method in which molding is performed using a mold having a bottle 49.
効果
以とのようにして本発明に従えば、軸部と拡大部とを含
む充分に滑らかに仕上げられたビンによって案内部材の
案内孔を形成するようにした。したがって案内孔の仕上
げ、および案内孔の軸線１こ沿って曲率半径が変化する
部分を形成するアール付は工程を不要にすることができ
、また得られた案内部材の案内孔と印字ワイヤとの摺擦
も可及的に滑らかにできた。According to the invention as described above, the guide hole of the guide member is formed by a sufficiently smooth finished bottle comprising a shank and an enlarged part. Therefore, it is possible to eliminate the need for finishing the guide hole and adding a radius to form a portion where the radius of curvature changes along one axis of the guide hole, and also to eliminate the need for the process of finishing the guide hole and forming the radius of curvature along one axis of the guide hole. The rubbing was made as smooth as possible.
第１図は従来技術を説明し、かつ本発明の一実施例を説
明するためのドツトプリンタヘッド１の一部断面図を示
す平面図、第２図は従来技術の案内部材１０ａの平面図
、第３図は第２図の切断面線■−■から見た断面図、第
４図は本発明の一実施例の案内部材１０の平面図、＠５
図は第４図の正面図、第６図は第４図の切断面線Ｍ−Ｍ
から見た断面図、ＷＳ７図は第４図の案内孔３０の拡大
平面図、第８図は本発明の一実施例の案内部材１０の製
造方法のフローチャート、第９図は第８図の射出成形時
に用いられる金型の断面図、第１０図は型部材４０の拡
大斜湿図である。
１・・・ドツトプリンタヘッド、５・・・印字ワイヤ。
６．７，８，９．１０−・・案内部材、１０ａ−案内部
材、３０・・・案内孔、３２・・・内壁面、３４・・・
位置決め部、４０・・・型部材、４１・・・上型、４２
・・・下型。
４７・・・キャビティ、４９・・・ビン、５０・・・遊
端部。
５１・・・軸部、５２・・・基台部、５３・・−拡犬部
代理人 弁理士 西教圭一部
第１図 、／１
第２図
第３図
第４図
第５図
１
（
第６図
第８図
ｎｌ ｎ２ ｎ３ ｎ４
第９図FIG. 1 is a plan view showing a partial sectional view of a dot printer head 1 for explaining the prior art and an embodiment of the present invention, FIG. 2 is a plan view of a guide member 10a of the prior art, and FIG. 3 is a sectional view taken along the section line ■-■ in FIG. 2, and FIG. 4 is a plan view of the guide member 10 according to an embodiment of the present invention, @5
The figure is a front view of Fig. 4, and Fig. 6 is a section line M-M of Fig. 4.
WS7 is an enlarged plan view of the guide hole 30 in FIG. 4, FIG. 8 is a flowchart of a method for manufacturing the guide member 10 according to an embodiment of the present invention, and FIG. 9 is an injection diagram in FIG. FIG. 10 is a sectional view of a mold used during molding, and is an enlarged perspective view of the mold member 40. 1... Dot printer head, 5... Printing wire. 6.7, 8, 9.10--Guiding member, 10a-Guiding member, 30... Guide hole, 32... Inner wall surface, 34...
Positioning part, 40... Mold member, 41... Upper mold, 42
...lower mold. 47...Cavity, 49...Bin, 50...Free end. 51...Shaft part, 52...Base part, 53...-Representative of the Canine Extension Department Patent Attorney Kei Nishi Part Figure 1, /1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 ( Figure 6 Figure 8 nl n2 n3 n4 Figure 9
Claims (1)
内部材において。 印字ワイヤが挿通する案内孔は、印字ワイヤの先端部側
で一様な曲率半径を有し。 印字ワイヤの基端部寄りにおける案内孔の部分け、前記
基端部寄りに曲率半径が漸増する↓うに形成されている
ことを特徴とするドツトプリンタの印字ワイヤの案内部
材。 （２）ドツトプリンタヘッドの印字ワイヤを案内する案
内部材を、金型を用いて製造する方法であって。 金型内に、案内部材の印字ワイヤが挿通する案内孔全形
成するビンを配置し。 キャビティ内に、案内部材の案内孔に対応したビンが突
設され、前記ビンは軸線方向に一様な外径を有する軸部
と、軸部に連なりキャビティの内面に近づくにつれて曲
率半径が漸増する拡大部とヲ有シ、このキャビティはビ
ンの軸部側Ｓこ開くことができる金型を準備し。 前記キャビティ内に材料を注入し、その後前記金型を、
ビンの軸部側に開いて、成型された案内部材を軸部の遊
端側に取出すことを特徴とするドツトプリンタの印字ワ
イヤの案内部材の製造方法。[Scope of Claim] In a guide member for guiding a printing wire of a +11 dot printer head. The guide hole through which the printing wire is inserted has a uniform radius of curvature on the tip end side of the printing wire. A guide member for a printing wire of a dot printer, characterized in that a guide hole is partially formed near the base end of the printing wire, and a radius of curvature gradually increases toward the base end. (2) A method of manufacturing a guide member for guiding a printing wire of a dot printer head using a mold. A bottle is placed in the mold, which has a guide hole through which the printing wire of the guide member is inserted. A bottle corresponding to the guide hole of the guide member is protruded into the cavity, and the bottle has a shaft portion having a uniform outer diameter in the axial direction, and a radius of curvature that is continuous with the shaft portion and gradually increases as it approaches the inner surface of the cavity. Prepare a mold that can open this cavity from the shank side of the bottle. Inject material into the cavity and then replace the mold with
1. A method for manufacturing a guide member for a printing wire for a dot printer, which comprises opening the bottle on the shaft side and taking out the molded guide member on the free end side of the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11941484A JPS60262667A (en) | 1984-06-11 | 1984-06-11 | Guide member for printing wire in dot printer and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11941484A JPS60262667A (en) | 1984-06-11 | 1984-06-11 | Guide member for printing wire in dot printer and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60262667A true JPS60262667A (en) | 1985-12-26 |
| JPH039870B2 JPH039870B2 (en) | 1991-02-12 |
Family
ID=14760872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11941484A Granted JPS60262667A (en) | 1984-06-11 | 1984-06-11 | Guide member for printing wire in dot printer and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60262667A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004069546A1 (en) * | 2003-02-10 | 2004-08-19 | Citizen Watch Co., Ltd. | Print head |
| EP1872954A2 (en) | 2006-06-30 | 2008-01-02 | Oki Data Corporation | Impact printhead |
| JP2013204120A (en) * | 2012-03-29 | 2013-10-07 | Seiko Epson Corp | Forming dies for metal powder injection molding |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5862067A (en) * | 1981-10-08 | 1983-04-13 | Canon Electronics Inc | Wire dot head |
-
1984
- 1984-06-11 JP JP11941484A patent/JPS60262667A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5862067A (en) * | 1981-10-08 | 1983-04-13 | Canon Electronics Inc | Wire dot head |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004069546A1 (en) * | 2003-02-10 | 2004-08-19 | Citizen Watch Co., Ltd. | Print head |
| US7246960B2 (en) | 2003-02-10 | 2007-07-24 | Citizen Watch Co., Ltd. | Print head |
| CN100434277C (en) * | 2003-02-10 | 2008-11-19 | 西铁城控股株式会社 | Print head |
| EP1872954A2 (en) | 2006-06-30 | 2008-01-02 | Oki Data Corporation | Impact printhead |
| EP1872954A3 (en) * | 2006-06-30 | 2010-03-17 | Oki Data Corporation | Impact printhead |
| US7927031B2 (en) | 2006-06-30 | 2011-04-19 | Oki Data Corporation | Impact printhead |
| JP2013204120A (en) * | 2012-03-29 | 2013-10-07 | Seiko Epson Corp | Forming dies for metal powder injection molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039870B2 (en) | 1991-02-12 |
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