JPS5928189B2 - Anti-vibration type wheel - Google Patents
Anti-vibration type wheelInfo
- Publication number
- JPS5928189B2 JPS5928189B2 JP6092379A JP6092379A JPS5928189B2 JP S5928189 B2 JPS5928189 B2 JP S5928189B2 JP 6092379 A JP6092379 A JP 6092379A JP 6092379 A JP6092379 A JP 6092379A JP S5928189 B2 JPS5928189 B2 JP S5928189B2
- Authority
- JP
- Japan
- Prior art keywords
- type wheel
- type
- vibration
- prevention plate
- ring
- 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
Description
【発明の詳細な説明】
本発明はタイプホィール、特にフィンガの振動防止板を
設けたスポーク型の振動防止タイプホイ、 −ルに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a type wheel, particularly a spoke type anti-vibration type wheel provided with anti-vibration plates for fingers.
モータにタイプホィールを直結して活字選択動作を行な
わせる、いわゆるモータ制御プリノタ用タイプホィール
は大別してパレット型とスポーク型に分類できる。Type wheels for so-called motor-controlled printers, in which a type wheel is directly connected to a motor to perform type selection operations, can be broadly classified into pallet type and spoke type.
パレット型は多数の活字がこれらを収納する剛性の高い
支持体中に滑合するような摺動自在に嵌合され、印字時
においては選択された活字が印字ハンマにより打撃され
押出される構造とされている。従つて、活字全種につい
て、これらの動作を行なわせるため部品点数の増加と摩
耗を発生する摺動個所が多数ある。The pallet type has a structure in which a large number of type characters are slidably fitted into a highly rigid support that houses them, and during printing, selected type characters are struck and pushed out by a printing hammer. has been done. Therefore, for all types of type, there are many sliding parts that increase the number of parts and cause wear to perform these operations.
従つて、信頼性が低く、かつ複雑な組立て作業が必要と
なり、低価格化が困難となるなど欠点があつた。一方、
従来のスポーク型タイプホィール1は第1図に示すよつ
な回転軸中心モータの回転軸を受けるボス2から放射状
にのびる何本かの幅広のスポーク部3と、これらスポー
ク部を連結して一体的に形成されたリング部4を有し、
そのリング4には外方に一定間隔でのびている多数のフ
ィンガ部5が一体的に設けられ、これらフィンガ部5の
先端には128字全種活字6が形成してある。Therefore, there were drawbacks such as low reliability and the need for complicated assembly work, making it difficult to reduce the price. on the other hand,
A conventional spoke-type wheel 1 has several wide spokes 3 extending radially from a boss 2 that receives the rotating shaft of a motor with the center of the rotating shaft as shown in FIG. It has a ring part 4 formed as follows.
The ring 4 is integrally provided with a large number of finger portions 5 extending outward at regular intervals, and 128 characters of all types 6 are formed at the tips of these finger portions 5.
なお、活字種が少ない場合には、一・ブ2から直接放射
状にフィンガがのびているものもあるが、この形状にお
いて128字全種を用いた場合慣性モーメントは大きく
なる。従つて回転慣性モーメントを小さくするために、
第1図のような形状が考案されている。しかし、これら
の構造においては、活字選択動作時において低速の場合
問題がないが、高速になるにつれてフィンガの回転方向
の振動および印字面方向の振動が大きくなり、それに伴
い印字品質が悪くなるばかりでなく、リング4どフィン
ガ5の付根に発生するひずみが大きくなり、疲労強度を
低下させる原因となつていた。このため振動防止として
ゴム質のダンパリングと呼ばれる物をタイプホイールの
フインガ部に接着して効果を与えているものもあつた。
しかし、接着部が、はく離またはフインガ部にねじれな
どが発生する欠点を持つていた。本発明は従来の欠点を
除去するため、活字選択モータの回転軸に固定されるボ
ス部から放射状に延びるスポーク部、前記スポーク部の
先端を一体に連結するリング部、前記リング部から外方
向に延びた先端に、母形活字を形成する等間隔で配設さ
れた複数のフインガを設けたタイプホイールと、耐摩耗
性で弾性を具備するプラスチツクの環状部材の外周縁上
に凸縁を設け、前記凸縁に前記フインガ間隙に相当する
幅を有するストツパを歯車状に配設し、内周縁に前記ス
ポークの間隙のリング部に接するガイドを設けた振動防
止板とを設け、前記タイプホイールのスポーク間のリン
グ部に前記振動防止板のガイドを挿入し、前記タイプホ
イールのリング部に設けたカシメスタツドを前記振動防
止板に穿設した孔に挿入し、前記タイプホイールと振動
防止板を前記カシメスタッドで相互に固定したことを特
徴とし、その目的とするところはフインガが印字作動時
に振動を生せず、リングの付根にひずみを生ぜず疲労強
度が向上し、高速時に卦いてもフインガを短縮する必要
のないようにするにある。In addition, when there are only a few types of type, fingers may extend radially directly from 1 and 2, but if all 128 types of characters are used in this shape, the moment of inertia will be large. Therefore, in order to reduce the rotational moment of inertia,
A shape as shown in Figure 1 has been devised. However, with these structures, there is no problem at low speeds during type selection operation, but as the speed increases, the vibrations in the rotational direction of the fingers and the vibrations in the direction of the print surface become larger, and the print quality deteriorates accordingly. Therefore, the strain generated at the base of the ring 4 and the finger 5 becomes large, which causes a decrease in fatigue strength. For this reason, some types had a rubber damper ring glued to the fingers of the type wheel to prevent vibrations.
However, the adhesive has the drawback of peeling or twisting of the fingers. In order to eliminate the drawbacks of the conventional art, the present invention includes a spoke part extending radially from a boss part fixed to a rotating shaft of a type selection motor, a ring part integrally connecting tips of the spoke part, and a ring part extending outward from the ring part. A type wheel having a plurality of fingers arranged at equal intervals to form a matrix type at an elongated tip, and a convex edge on the outer periphery of an annular member made of abrasion-resistant and elastic plastic, A stopper having a width corresponding to the finger gap is disposed in the shape of a gear on the convex edge, and a vibration prevention plate provided with a guide in contact with the ring part of the gap between the spokes is provided on the inner peripheral edge, and the spokes of the type wheel are provided with Insert the guide of the anti-vibration plate into the ring part between them, insert the caulking stud provided in the ring part of the type wheel into the hole bored in the anti-vibration plate, and connect the type wheel and anti-vibration plate to the caulking stud. The purpose of this is to prevent the finger from vibrating during printing, to improve fatigue strength without causing strain at the base of the ring, and to shorten the finger even at high speeds. It's to make it unnecessary.
本発明を図面に基いて説明する。The present invention will be explained based on the drawings.
第2図は本発明の一実施例の振動防止タイプホイールの
正面図、第3図は本発明0振動防止仮、イ図は正面図、
口図は平面図、第4図イ図は第2図のX−X′FfBの
断面図、口図はY−Y憩の断面図を示す。Figure 2 is a front view of a vibration prevention type wheel according to an embodiment of the present invention, Figure 3 is a temporary vibration prevention type wheel according to the present invention, Figure A is a front view,
The opening diagram shows a plan view, the opening diagram in FIG.
図に卦いて、7は振動防止タイプホイールでその中央に
回転軸孔25を設けたボス8を設け、ボス8から放射状
に延びる複数の幅広のスポーク部9、スポーク部9の先
端を連結して一体的に形成されたリング部10、卦よび
このリング部10には外方向に一定間隔でのびている多
数のフインガ11を一体的に設け、これらフインガ11
の先端には母形活字12が形成されている。In the figure, 7 is an anti-vibration type wheel with a boss 8 provided with a rotating shaft hole 25 in the center, a plurality of wide spokes 9 extending radially from the boss 8, and the tips of the spokes 9 connected to each other. The ring portion 10 is integrally formed, and the ring portion 10 is integrally provided with a number of fingers 11 extending outward at regular intervals.
A matrix type 12 is formed at the tip.
一方リング部10には孔10−1を穿設し、孔10−1
にカシメスタツド14を挿入し、裏面から振動防止板1
3がスポーク部9の中心線上のリング部10に設けたカ
シメスタツド14で止めてあり、振動防止板13にはフ
インガ間隙に相当する間隙幅を有したストツパ15がフ
インガ部11のピツチに合せてある。16はガイド部で
リング部10の内側と接するようになつている。On the other hand, a hole 10-1 is bored in the ring part 10.
Insert the caulking stud 14 into the vibration prevention plate 1 from the back side.
3 is fixed by a caulking stud 14 provided on the ring part 10 on the center line of the spoke part 9, and the vibration prevention plate 13 has a stopper 15 having a gap width corresponding to the finger gap, which is aligned with the pitch of the finger part 11. . Reference numeral 16 denotes a guide portion that comes into contact with the inside of the ring portion 10.
本発明の振動防止板13は中心に欠除部を有し、外周縁
には突縁13−1を設け、突縁13−1にはフインガ間
隙に相当する幅を有するストッパ15がZインガ部11
のピツチに合わせて設けてある。The anti-vibration plate 13 of the present invention has a cutout in the center, a projecting edge 13-1 is provided on the outer peripheral edge, and a stopper 15 having a width corresponding to the finger gap is attached to the Z finger portion of the projecting edge 13-1. 11
It is set up according to the pitch.
第4図イ図、口図にタイプホイールに振動防止板13を
装着した状態のX−X′M.Y−Y′FfBに卦ける断
面の拡大図を示す。Figure 4 A and Figure 4 show the X-X'M type wheel with the anti-vibration plate 13 attached. An enlarged view of a cross section taken along Y-Y'FfB is shown.
振動防止板は耐摩耗性で弾性を具備するプラスチツクで
製作し、カシメスタツドは先端をかしめたり、接着剤で
タイプホイールに固定される。以上のように構成された
タイプホイール7は、第5図に示すようにボス8を介し
て、活字選択用モータ17の回転軸18に取付具19で
固定され、印字用紙21を添接させたブラテン21と対
向配置される。The anti-vibration plate is made of abrasion-resistant and elastic plastic, and the caulking stud is fixed to the type wheel by caulking the tip or using adhesive. The type wheel 7 configured as described above is fixed to the rotating shaft 18 of the type selection motor 17 with a fixture 19 via the boss 8 as shown in FIG. 5, and the printing paper 21 is attached. It is arranged opposite to the platen 21.
22は印字・・ンマである。22 is a print mark.
回転軸18にタイプホイール7を固定するには、回転軸
18に円板状フランジ18−1を設け、ボス8の回転軸
孔25を回転軸18に挿入し、フランジ18−1により
ボス8でタイプホイールrを保持し、一方回転軸18の
先端に環状の凹部18−2を設け、また取付具19はゴ
ムなどの弾性体でキヤツプ状をなし内面には凹部18−
2と嵌合する凸部19−1を設け、凹部18−2に取付
具19の凸部19−1を嵌合して行う。これらの構造に
卦いて、活字選択用モータ17の回転軸18に取付けら
れたタイプホイール7はモータの回転により必要な活字
12が印字一・ンマ22と対向し静止する。To fix the type wheel 7 to the rotating shaft 18, a disk-shaped flange 18-1 is provided on the rotating shaft 18, the rotating shaft hole 25 of the boss 8 is inserted into the rotating shaft 18, and the flange 18-1 allows the boss 8 to be fixed to the rotating shaft 18. The type wheel r is held, and an annular recess 18-2 is provided at the tip of the rotating shaft 18, and the fixture 19 is made of an elastic material such as rubber and has a cap shape, and the inner surface has a recess 18-2.
This is done by providing a convex portion 19-1 that fits with the fitting 19, and fitting the convex portion 19-1 of the fixture 19 into the concave portion 18-2. In addition to these structures, the type wheel 7 attached to the rotary shaft 18 of the type selection motor 17 stands still while the required type 12 faces the printing mark 22 as the motor rotates.
この回転、静止時に発生する振動は、振動防止板13に
設けられているストツパ15によつて制される。従つて
印字前には活字12部に卦いては振動がなくなる。つま
りハンマ0打撃による印字動作は適確となる。さらに印
字動作時に卦いては、高速時に卦いてもフインガ11の
長さを短縮する必要がない。The vibrations generated during rotation and rest are suppressed by a stopper 15 provided on the vibration prevention plate 13. Therefore, before printing, there is no vibration in the 12 printed characters. In other words, the printing operation with zero hammer impact is accurate. Furthermore, during printing operations, there is no need to shorten the length of the finger 11 even at high speeds.
ストトツパ15の作用は回転方向の変形を制する前後方
向に対しては制さない。従つてリング部10の剛性が上
るため印字面に対して全体の振動は少なくなり、かつフ
インガ11のリング部10との付根に発生するひずみは
実験の結果ほとんど変化しない。これらのことから選択
動作卦よび印字動作時にフインガ11の付根に発生する
ひずみは印字面方向のみの応力が働くこととなり、実質
的ひずみの低下となり、フインガの折損防止にもなる。
以上説明したように、タイプホイールの裏面から振動防
止板を設け、その振動板上に設けたストツパによつて回
転時のフインガの変形力逓1jされる。さらに印字方向
の動作時に卦いては、高速時に卦いてもフインガ長さを
変えることがなく、かつ振動防止板をリング上に固定し
ていることから、リングの剛性が上がり、前後の印字動
作による過度振動が少なくなる。本発明は前記の構成に
基いて、高速で安定な動作が得られること、フインガ部
の疲労強度の向上卦よび高印字品質を得ることができる
など、大きな作用効果を生ずる。The action of the stopper 15 does not control the deformation in the rotational direction but in the longitudinal direction. Therefore, since the rigidity of the ring portion 10 is increased, the overall vibration with respect to the printing surface is reduced, and the strain generated at the root of the finger 11 with the ring portion 10 hardly changes as a result of the experiment. For these reasons, the strain generated at the base of the finger 11 during the selection operation and the printing operation is caused by stress acting only in the direction of the printing surface, which substantially reduces the strain and prevents the finger from breaking.
As explained above, a vibration prevention plate is provided from the back side of the type wheel, and the deformation force 1j of the fingers during rotation is reduced by the stopper provided on the vibration plate. Furthermore, during operation in the printing direction, the finger length does not change even at high speeds, and since the vibration prevention plate is fixed on the ring, the rigidity of the ring increases and Excessive vibration is reduced. Based on the above-mentioned configuration, the present invention produces significant effects such as high-speed and stable operation, improved fatigue strength of the finger portion, and high print quality.
本発明の技術手段は円板形ばかりでなく直線上にならべ
た櫛形のフインガ上に設けた母形活字体に関しても応用
できることはもちろんのことである。It goes without saying that the technical means of the present invention can be applied not only to disc-shaped typefaces but also to matrix-shaped typefaces provided on comb-shaped fingers arranged in a straight line.
第1図は従来のタイプホイールの正面図、第2図は本発
明の振動防止タイプホイールの一実施例の正面図、第3
図は本発明の振動防止板、イ図は正面図、口図は平面図
、第4図イ図は第2図X−X豫の、口図はY−YWの断
面拡大図、第5図は本発明の振動防止タイプホイールを
活字用選択モータに装着した側面図、を示すっ7:振動
防止タイプホイール、8:ボス、9:スポーク、10:
リング部、10−1:孔、11:フインガ、12:母形
活字、13:振動防止板、14:カシメスタツド、15
:ストツパ、16ニガイド部。FIG. 1 is a front view of a conventional type wheel, FIG. 2 is a front view of an embodiment of the anti-vibration type wheel of the present invention, and FIG.
The figure shows the anti-vibration plate of the present invention, Figure A is a front view, the front view is a plan view, Figure 4, Figure A is an enlarged sectional view of Figure 2 X-XY, and the front view is an enlarged cross-sectional view of Y-YW. 7 shows a side view of the anti-vibration type wheel of the present invention attached to a selection motor for type. 7: Anti-vibration type wheel; 8: Boss; 9: Spoke; 10:
Ring part, 10-1: Hole, 11: Finger, 12: Matrix type, 13: Vibration prevention plate, 14: Caulking stud, 15
: Stoppa, 16 guide part.
Claims (1)
射状に延びるスポーク部、前記スポーク部の先端を一体
に連結するリング部、前記リング部から外方向に延びた
先端に、母形活字を形成する等間隔で配設された複数の
フィンガを設けたタイプホイールと、耐摩耗性で弾性を
具備するプラスチックの環状部材の外周縁上に凸縁を設
け前記凸縁に前記フィンガ間隙に相当する幅を有するス
トッパを歯車状に配設し、内周縁に前記スポークの間隙
のリング部に接するガイドを設けた振動防止板とを設け
、前記タイプホイールのスポーク部間のリンク部に前記
振動防止板のガイドを挿入し、前記タイプホイールのリ
ング部に設けたカシメスタッドを前記振動防止板に穿設
した孔に挿入し、前記タイプホイールと振動防止板を前
記カシメスタッドで相互に固定したことを特徴とする振
動防止タイプホイール。1. A matrix type is formed in a spoke part extending radially from a boss part fixed to a rotating shaft of a type selection motor, a ring part integrally connecting tips of the spoke part, and a tip extending outward from the ring part. a type wheel provided with a plurality of fingers arranged at equal intervals, and a convex edge on the outer peripheral edge of an annular member made of wear-resistant and elastic plastic, and the convex edge has a width corresponding to the gap between the fingers. A stopper having a shape of a gear is disposed in a gear shape, and a vibration prevention plate is provided with a guide on the inner periphery that contacts the ring portion in the gap between the spokes, and a vibration prevention plate is provided at the link portion between the spoke portions of the type wheel. A guide is inserted, a caulking stud provided on the ring portion of the type wheel is inserted into a hole bored in the vibration prevention plate, and the type wheel and vibration prevention plate are fixed to each other by the caulking stud. Anti-vibration type wheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6092379A JPS5928189B2 (en) | 1979-05-17 | 1979-05-17 | Anti-vibration type wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6092379A JPS5928189B2 (en) | 1979-05-17 | 1979-05-17 | Anti-vibration type wheel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55152063A JPS55152063A (en) | 1980-11-27 |
JPS5928189B2 true JPS5928189B2 (en) | 1984-07-11 |
Family
ID=13156383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6092379A Expired JPS5928189B2 (en) | 1979-05-17 | 1979-05-17 | Anti-vibration type wheel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5928189B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6240157U (en) * | 1985-08-30 | 1987-03-10 |
-
1979
- 1979-05-17 JP JP6092379A patent/JPS5928189B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6240157U (en) * | 1985-08-30 | 1987-03-10 |
Also Published As
Publication number | Publication date |
---|---|
JPS55152063A (en) | 1980-11-27 |
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