JPS63149156A - Printer - Google Patents

Printer

Info

Publication number
JPS63149156A
JPS63149156A JP29694586A JP29694586A JPS63149156A JP S63149156 A JPS63149156 A JP S63149156A JP 29694586 A JP29694586 A JP 29694586A JP 29694586 A JP29694586 A JP 29694586A JP S63149156 A JPS63149156 A JP S63149156A
Authority
JP
Japan
Prior art keywords
type wheel
pin
holder
conical surface
hole
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
Application number
JP29694586A
Other languages
Japanese (ja)
Other versions
JP2523550B2 (en
Inventor
Noriaki Nada
奈田　紀明
Hiroyuki Matsuba
浩幸 松葉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP61296945A priority Critical patent/JP2523550B2/en
Publication of JPS63149156A publication Critical patent/JPS63149156A/en
Application granted granted Critical
Publication of JP2523550B2 publication Critical patent/JP2523550B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation
    • B41J1/243—Mounting or fixing the carriers

Abstract

PURPOSE:To prevent the harmful vibration between a type wheel and a holder, by a method wherein a first conical surface abutting on the edge of a guide hole of the holder is formed on the circumference of a pip and a second conical surface abutting on the edge of a positioning hole of the type wheel on the tip end side of the pin from the first conical surface. CONSTITUTION:By the construction wherein a pin 6 abuts on the edge of each hole with a type wheel 1 slightly levitated from a holder 7, the prevention of harmful vibration is realized without improving the accuracy of the type wheel 1, the holder 7, and the pin 6. Because the holder 7 and the pin 6, and the pin 6 and the type wheel 1 are positioned respectively to conical surfaces 6b and 6c, the holder 7 and the type wheel 1 always have a constant positional relation and always rotate as one unit. Therefore, a printing speed can be enhanced without generating harmful vibration etc., between the holder 7 and the type wheel 1, and higher printing quality can be obtained.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、活字ホイールを用いた電子タイプライタ−等
の印字装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a printing device such as an electronic typewriter using a type wheel.

従来の技術 従来、電子タイプライタ−やプリンターはビジネスのみ
ならず、あらゆる分野に利用されており、高い印字品質
が要求されることが多い。BACKGROUND ART Conventionally, electronic typewriters and printers have been used not only in business but also in all fields, and high printing quality is often required.

以下に従来の電子タイプライタ−について説明する。A conventional electronic typewriter will be explained below.

第５図は従来の電子タイプライタ−の要部斜視図であり
、１は放射状に配置されたスポーク１ａの先端に活字１
ｂが形成され、スポーク１ａを保持するハブ１ｃが中央
に設けられた活字ホイールであり、ハブ１ｃには内部に
Ｕ字型のはね１ｄが配置された取り付は穴１ｅ及び位置
決め穴１ｆが設けられている。２はクランプ軸２ａ及び
駆動シャフト２ｂが設けられ、活字ホイール１を保持す
るホルダーであり、クランプ軸２ａの溝２Ｃにばね１ｄ
が入り込んで活字ホイール１がホルダー２に支持された
状態となる。またホルダー２は周囲に歯２ｄが設けられ
たつば２ｅを備えている。FIG. 5 is a perspective view of the main parts of a conventional electronic typewriter.
b is formed, and a hub 1c that holds spokes 1a is provided in the center.The hub 1c has a U-shaped spring 1d inside and has a mounting hole 1e and a positioning hole 1f. It is provided. A holder 2 is provided with a clamp shaft 2a and a drive shaft 2b and holds the type wheel 1, and a spring 1d is installed in a groove 2C of the clamp shaft 2a.
enters, and the type wheel 1 is now supported by the holder 2. The holder 2 also includes a collar 2e having teeth 2d around the periphery.

３は第６図にさらに詳細に示すようにつば３ａを備えた
ピンである。3 is a pin provided with a collar 3a as shown in more detail in FIG.

第６図は従来の電子タイプライタ−の要部断面図であり
、２ｆはホルダー２に設けられ、ピン３をスライド自在
に支持する穴、４はピン３をスライド自在に支持する穴
４ａを備えた軸受、５はピン３を活字ホイールに向かつ
て付勢するばねである。FIG. 6 is a sectional view of a main part of a conventional electronic typewriter, in which 2f is a hole provided in the holder 2 and supports the pin 3 in a slidable manner, and 4 is a hole 4a in which the pin 3 is supported in a slidable manner. The bearing 5 is a spring which urges the pin 3 towards the type wheel.

以上のように構成された従来の電子タイプライタ−につ
いて、以下にその活字ホイール１のホルダーへの取り付
は方法について説明する。Regarding the conventional electronic typewriter constructed as described above, the method for attaching the type wheel 1 to the holder will be described below.

まず位置決め穴１ｆとピン３の位置関係を合わせていな
い状態で、クランプ軸２ａに活字ホイール１の取り付は
穴１ｅを通す。するとはね１ｄが溝２Ｃに入り込む。次
に活字ホイール１の回転を阻止した状態で、ホルダー２
を回転させる。位置決め穴１ｆとピン３との位置が合う
と、ピン３はばね５に押されてスライドし、位置決め穴
１ｆに入り込む。First, with the positioning hole 1f and pin 3 not aligned, type wheel 1 is attached to clamp shaft 2a by passing through hole 1e. Then, the spring 1d enters the groove 2C. Next, with the type wheel 1 prevented from rotating, the holder 2
Rotate. When the positioning hole 1f and the pin 3 are aligned, the pin 3 is pushed by the spring 5 and slides into the positioning hole 1f.

このようにして活字ホイール１はホルダー２に取り付け
られる。In this way the type wheel 1 is attached to the holder 2.

発明が解決しようとする問題点 しかしながら上記従来の構成では、ピン３をスライドし
やす（するために、位置決め穴１ｆ及び穴４ａの内径は
ピン３の外径より大きく作られているため、この径の分
だけ活字ホイール１とホルダー２との位置関係がずれ、
活字選択後ホルダー２は停止しているのにもかかわらず
活字ホイール１が振動し、振動が減衰してから打撃を行
う場合打撃までの時間が増大し印字速度が遅くなるとい
う問題点や、印字品質が低下するという問題点を有して
いた。Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, the inner diameters of the positioning hole 1f and the hole 4a are made larger than the outer diameter of the pin 3, so that the pin 3 can easily slide. The positional relationship between the type wheel 1 and the holder 2 is shifted by the amount of
The type wheel 1 vibrates even though the holder 2 is stopped after selecting type, and if the impact is performed after the vibration has damped, the time until impact increases and the printing speed slows down. The problem was that the quality deteriorated.

問題点を解決するための手段 本発明は、ピンの外周にホルダーのガイド穴の縁に当接
する第１の円錐面を形成するとともに第一　　３　− １の円錐面より先端側の位置に活字ホイールの位置決め
穴の縁に当接する第２の円錐面を形成したものである。Means for Solving the Problems The present invention forms a first conical surface on the outer periphery of the pin that contacts the edge of the guide hole of the holder, and a type wheel at a position on the distal side of the first 3-1 conical surface. A second conical surface is formed to abut on the edge of the positioning hole.

作　　　用 上記構成により、ホルダーとピン及びピンと活字ホイー
ルがそれぞれ円錐面により位置決めされる。Operation With the above configuration, the holder and the pin, and the pin and the type wheel are respectively positioned by the conical surfaces.

実施例 第２図は本発明の一実施例における電子タイプライタ−
の要部斜視図であり、１は活字ホイールであり、これは
従来例と同様の構成のものである。６は第１図にさらに
詳細に示すようにつば６ａ及び円錐面６ｂ及び６Ｃ及び
６ｄが設けられたピン、７はホルダーであり、ホルダー
７には従来例と同様にクランプ軸７　ａ　１駆動シヤフ
ト７ｂ。Embodiment FIG. 2 shows an electronic typewriter in an embodiment of the present invention.
1 is a perspective view of a main part of the printer, in which numeral 1 denotes a type wheel, which has the same configuration as the conventional example. 6 is a pin provided with a collar 6a and conical surfaces 6b, 6C, and 6d, as shown in more detail in FIG. 7b.

溝７　Ｃ％歯７ｄ及びつば７ｅが設けられており、さら
に第１図に示すように穴７ｆが設けられている。The groove 7 is provided with C% teeth 7d and a collar 7e, and is further provided with a hole 7f as shown in FIG.

第１図は本実施例の電子タイプライタ−の要部断面図で
あり、４は軸受、５はばねであり、これらは従来例と同
様のものである。FIG. 1 is a sectional view of the main parts of the electronic typewriter of this embodiment, in which 4 is a bearing and 5 is a spring, which are the same as in the conventional example.

、以上のように構成された本実施例の電子タイプライタ
−について、以下にその活字ホイール１の取り付けにつ
いて説明する。The attachment of the type wheel 1 to the electronic typewriter of this embodiment constructed as described above will be explained below.

従来例と同様にまず位置決め穴１ｆとピン６の位置関係
を合わせていない状態で、クランプ軸７ａに活字ホイー
ル１の取り付は穴１ｅを通す。するとはね１ｄが溝７ｃ
に入り込む。次に活字ホイール１０回転を阻止した状態
で、ホルダー７を回転させる。位置決め穴１ｆとピン３
との位置が合うと、ピン３はばね５に押されてスライド
し、位置決め穴１ｆに入り込む。この時円錐面６ｂが位
置決め穴１ｆの縁に当接し位置決めされ、同時に円錐面
６Ｃが穴４ａの縁に当接し位置決めされる。第３図にさ
らに詳細に示すように、活字ホイール１がホルダー７よ
り僅かに浮いた状態でピン６がそれぞれの穴の縁に当接
するように構成することにより、活字ホイール１及びホ
ルダー７及びピン６の精度を上げることなく、この発明
を実現するこ七ができる。このようにホルダー７とピン
６及びピン６と活字ホイール１がそれぞれ円錐面６ｂ及
び６ｃにより位置決めされるため、ホルダー７と活字ホ
イール１の位置関係が常に一定のものとなり、ホルダー
７と活字ホイール１が常に一体に回転し、ホルダー７と
活字ホイール１との間に有害な振動を等を発生すること
なく、印字速度を上げることができ、さらに高い印字品
質を得ることができる。As in the conventional example, first, the type wheel 1 is attached to the clamp shaft 7a by passing it through the hole 1e while the positioning hole 1f and the pin 6 are not aligned. Then the fly 1d is in the groove 7c
Get into it. Next, the holder 7 is rotated while the type wheel is prevented from rotating 10 times. Positioning hole 1f and pin 3
When the pin 3 is aligned, the pin 3 is pushed by the spring 5 and slides into the positioning hole 1f. At this time, the conical surface 6b abuts on the edge of the positioning hole 1f and is positioned, and at the same time, the conical surface 6C abuts on the edge of the hole 4a and is positioned. As shown in more detail in FIG. 3, by configuring the pin 6 to abut the edge of each hole with the type wheel 1 slightly floating above the holder 7, the type wheel 1, the holder 7 and the pin It is possible to realize this invention without increasing the accuracy of 6. In this way, the holder 7 and the pin 6 and the pin 6 and the type wheel 1 are positioned by the conical surfaces 6b and 6c, respectively, so that the positional relationship between the holder 7 and the type wheel 1 is always constant, and the holder 7 and the type wheel 1 are positioned in a constant manner. The holder 7 and the type wheel 1 always rotate together, and printing speed can be increased without causing harmful vibrations between the holder 7 and the type wheel 1, and even higher printing quality can be obtained.

なお、本実施例では活字ホイール１がホルダー７より僅
かに浮いた状態で、円錐面６ｂが位置決め穴１ｆの縁に
当接するとともに円錐面６ｃが穴４ａに当接するように
構成したが、これは活字ホイール１及び軸受４のいずれ
か一方を、弾性の大きい材質で作成することによっても
、各部材の精度を高めることなくこの発明を実現するこ
とができる。これは例えば活字ホイール１を比較的弾性
の大きい材質で形成した場合、第４図に示すようにピン
６が活字ホイール１に食い込んだ状態で位置決めされる
ことになる。In this embodiment, the conical surface 6b is in contact with the edge of the positioning hole 1f, and the conical surface 6c is in contact with the hole 4a, with the type wheel 1 slightly floating above the holder 7. The present invention can also be realized by making either the type wheel 1 or the bearing 4 from a highly elastic material without increasing the accuracy of each member. For example, if the type wheel 1 is made of a material with relatively high elasticity, the pin 6 will be positioned by biting into the type wheel 1, as shown in FIG.

発明の効果 本発明は、ピンの外周にホルダーのガイド穴の縁に当接
する第１の円錐面を形成するとともに第１の円錐面より
先端側の位置に活字ホイールの位置決め穴の縁に当接す
る第２の円錐面を形成したものであり、活字ホイールの
装着時にホルダーとピン及びピンと活字ホイールがそれ
ぞれ円錐台により位置決めされ、活字ホイールとホルダ
ーの位置関係が常に一定のものとなり、活字ホイールと
ホルダーが常に一体に回転し、活字ホイールとホルダー
の間に有害な振動を等を発生することなく高い印字品質
を得ることができる。Effects of the Invention The present invention forms a first conical surface on the outer periphery of the pin that contacts the edge of the guide hole of the holder, and also contacts the edge of the positioning hole of the type wheel at a position on the tip side of the first conical surface. A second conical surface is formed, and when the type wheel is installed, the holder and pin, and the pin and type wheel are positioned by the truncated cone, so that the positional relationship between the type wheel and holder is always constant, and the type wheel and holder are positioned. The type wheel and holder always rotate together, allowing high print quality to be obtained without harmful vibrations between the type wheel and holder.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例における電子タイプライタ−
の要部断面図、第２図は同要部斜視図、第３図は同要部
斜視図、第４図は他の実施例における電子タイプライタ
−の要部断面図、第５図は従来の電子タイプライタ−の
要部斜視図、第６図は同要部断面図である。 １・・・活字ホイール、１ａ・・・スポーク、１ｂ・・
・活字部、１ｃ・・・ハブ、１ｄ・・・ばね、１ｅ・・
・取り付け穴、１ｆ・・・位置決め穴、６・・・ピン、
６ａ・・・つば、６ｂ〜６ｄ・・・円錐面、７・・・ホ
ルダー、７ａ・・・クランプ軸、７ｂ・・・駆動シャフ
ト、７Ｃ・・・溝、７ｄ・・・歯、７ｅ・・・つばFIG. 1 shows an electronic typewriter according to an embodiment of the present invention.
2 is a perspective view of the same main part, FIG. 3 is a perspective view of the main part, FIG. 4 is a sectional view of the main part of an electronic typewriter in another embodiment, and FIG. 5 is a conventional electronic typewriter. FIG. 6 is a perspective view of a main part of an electronic typewriter, and FIG. 6 is a sectional view of the main part. 1... Type wheel, 1a... Spoke, 1b...
・Type part, 1c...Hub, 1d...Spring, 1e...
・Mounting hole, 1f...positioning hole, 6...pin,
6a...Brim, 6b-6d...Conical surface, 7...Holder, 7a...Clamp shaft, 7b...Drive shaft, 7C...Groove, 7d...Teeth, 7e... ·spit

Claims (1)

【特許請求の範囲】[Claims] 先端に活字部が形成されたスポークが外周に放射状に配
置され、外れ防止のための係合部及び回転防止のための
穴を有するハブ備えた活字ホィールを支持するホルダー
を備え、前記ホルダーの中央に前記係合部に係合し活字
ホィールを引き付けた状態で支持するための係合部を設
けるとともに、活字ホィールに対向する面の前記係合部
を除いた位置に活字ホィールに向かって突出するように
支持され活字ホィールの穴に挿入されるピンをスライド
可能にガイドするガイド穴を設け、前記ピンの外周に前
記ピンの移動方向に平行な中心軸を有する第１の円錐面
を形成するとともに前記ピンの外周の前記第１の円錐面
より先端側の位置に前記ピンの移動方向に一致する第２
の円錐面を形成し、活字ホィールを装着した状態でかつ
前記ピンが前記ガイド穴に入った状態で前記第１の円錐
面が前記ガイド穴の縁に当接するとともに前記第２の円
錐面が活字ホィールの穴の縁に当接するように構成した
ことを特徴とする印字装置。A holder for supporting a type wheel having a hub having spokes having type portions formed at the tips arranged radially around the outer periphery, an engaging portion for preventing detachment, and a hole for preventing rotation; is provided with an engaging portion for engaging with the engaging portion and supporting the type wheel in a drawn state, and protruding toward the type wheel at a position other than the engaging portion on the surface facing the type wheel. A guide hole is provided to slidably guide a pin that is supported as such and is inserted into the hole of the type wheel, and a first conical surface having a central axis parallel to the moving direction of the pin is formed on the outer periphery of the pin. A second conical surface on the outer periphery of the pin that is located on the distal side of the first conical surface and that corresponds to the direction of movement of the pin.
When the type wheel is attached and the pin is inserted into the guide hole, the first conical surface abuts the edge of the guide hole, and the second conical surface forms a type. A printing device characterized in that it is configured to come into contact with the edge of a hole in a wheel.
JP61296945A 1986-12-12 1986-12-12 Printer Expired - Lifetime JP2523550B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61296945A JP2523550B2 (en) 1986-12-12 1986-12-12 Printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61296945A JP2523550B2 (en) 1986-12-12 1986-12-12 Printer

Publications (2)

Publication Number Publication Date
JPS63149156A true JPS63149156A (en) 1988-06-21
JP2523550B2 JP2523550B2 (en) 1996-08-14

Family

ID=17840213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61296945A Expired - Lifetime JP2523550B2 (en) 1986-12-12 1986-12-12 Printer

Country Status (1)

Country Link
JP (1) JP2523550B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751469A (en) * 1980-06-30 1982-03-26 Brother Ind Ltd Printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751469A (en) * 1980-06-30 1982-03-26 Brother Ind Ltd Printer

Also Published As

Publication number Publication date
JP2523550B2 (en) 1996-08-14

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