JPH0615250B2 - Paper feed mechanism - Google Patents

Paper feed mechanism

Info

Publication number
JPH0615250B2
JPH0615250B2 JP58064209A JP6420983A JPH0615250B2 JP H0615250 B2 JPH0615250 B2 JP H0615250B2 JP 58064209 A JP58064209 A JP 58064209A JP 6420983 A JP6420983 A JP 6420983A JP H0615250 B2 JPH0615250 B2 JP H0615250B2
Authority
JP
Japan
Prior art keywords
pinch roller
pinch
roller shaft
shaft
shafts
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
Application number
JP58064209A
Other languages
Japanese (ja)
Other versions
JPS59188468A (en
Inventor
弘文 平野
哲雄 木村
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP58064209A priority Critical patent/JPH0615250B2/en
Publication of JPS59188468A publication Critical patent/JPS59188468A/en
Publication of JPH0615250B2 publication Critical patent/JPH0615250B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02Rollers

Landscapes

  • Handling Of Cut Paper (AREA)

Description

【発明の詳細な説明】 (技術分野) 本発明は駆動ローラと複数のピンチローラによつて印字
紙を送る、紙送り機構に関する。
Description: TECHNICAL FIELD The present invention relates to a paper feeding mechanism that feeds printing paper by a driving roller and a plurality of pinch rollers.

(従来技術) 従来、紙巾の大きな印字用紙を送る紙送り機構において
は、プラテン等の駆動ローラに圧接するピンチローラを
それぞれ独立して動くようにし、各ピンチローラをそれ
ぞれ別個の機構を用いて駆動ローラに圧接離間するよう
にしていた。しかしこれであると部品が増加して構造が
複雑化し、また組立もむずかしくなり、従つてコストア
ップの要因になつていた。
(Prior Art) Conventionally, in a paper feeding mechanism that feeds a printing paper having a large paper width, the pinch rollers that are in pressure contact with a driving roller such as a platen are moved independently, and each pinch roller is driven using a separate mechanism. The roller was pressed and separated. However, this increases the number of parts, complicates the structure, and makes assembling difficult, thus causing a cost increase.

(目 的) 本発明の目的は、部品数を減らし、構造を簡略化し、更
に組立作業性を向上させて、安価な紙送り機構を提供す
ることである。
(Objective) An object of the present invention is to provide an inexpensive paper feeding mechanism by reducing the number of parts, simplifying the structure, and improving the assembling workability.

(課題を解決する手段) 上記目的を達成する本発明の構成は、 紙を搬送するために回転する駆動ローラと、 前記駆動ローラの長手方向と平行な方向に並べて配置さ
れた複数のピンチローラ軸と、 前記複数のピンチローラ軸に対して、それぞれ回転自在
に設けられた複数のピンチローラと、 前記複数のピンチローラ軸の、それぞれの両端部を遊嵌
させて支持する穴を有する複数の支持部材と、 前記ピンチローラを前記駆動ローラに圧接させる付勢手
段と、 前記複数のピンチローラ軸のうち、第1のピンチローラ
軸の一端を動かして該第1のピンチローラ軸に支持され
たピンチローラを前記駆動ローラより離間させる手段
と、 前記第1のピンチローラ軸の一端および他のピンチロー
ラ軸の一端と当接し、前記第1のピンチローラ軸の動き
を他のピンチローラ軸に伝達することによって、前記第
1のピンチローラ軸の動きと連動して他のピンチローラ
軸の一端が動いて該他のピンチローラ軸に支持されたピ
ンチローラを前記駆動ローラより離間させる伝達部材
と、 を有することを特徴とする紙送り機構である。
(Means for Solving the Problems) A configuration of the present invention that achieves the above object is to provide a drive roller that rotates to convey paper, and a plurality of pinch roller shafts that are arranged side by side in a direction parallel to the longitudinal direction of the drive roller. A plurality of pinch rollers rotatably provided with respect to the plurality of pinch roller shafts, and a plurality of supports having holes for loosely fitting and supporting both ends of the plurality of pinch roller shafts. A member, an urging means for pressing the pinch roller against the drive roller, and a pinch supported by the first pinch roller shaft by moving one end of a first pinch roller shaft among the plurality of pinch roller shafts. A means for separating the roller from the drive roller, and abutting one end of the first pinch roller shaft and one end of the other pinch roller shaft to move the first pinch roller shaft. Is transmitted to the pinch roller shaft of the first pinch roller shaft, the one end of the other pinch roller shaft moves in association with the movement of the first pinch roller shaft to move the pinch roller supported by the other pinch roller shaft from the drive roller. A paper feed mechanism comprising: a transmission member to be separated from each other.

(実施例) 第1図は本発明の実施例である紙送り機構であり、全て
の印字装置に応用可能である。
(Embodiment) FIG. 1 shows a paper feed mechanism according to an embodiment of the present invention, which is applicable to all printing devices.

1は図示しない印字装置の側板に、軸の両端を回転可能
に軸支された駆動ローラーで、プラテンを兼ねている。
2はシャーシで、後述するピンチローラ軸3,4をスラ
イド自在に保持するための溝を設けた保持部2a,2
b,2c,2dを一体に有している。又、後述する連絡
板6を揺動自在に保持する保持部2e,2fも一体に有
している。
Reference numeral 1 denotes a drive roller rotatably supported at both ends of a shaft by a side plate of a printing device (not shown), which also serves as a platen.
Reference numeral 2 denotes a chassis, which is a holding portion 2a having a groove for slidably holding pinch roller shafts 3 and 4 described later.
It has b, 2c and 2d integrally. Further, it also integrally has holding portions 2e and 2f which hold a connecting plate 6 described later in a swingable manner.

3は第1のピンチローラ軸で、シャーシ2の保持部2
a,2bの溝にガイドされ、また両端の溝3a,3bに
はそれぞれ一端をシャーシ2またはこれと同等の固定部
に係止されたピンチローラバネ4a,4bの他端が係止
され、バネ力により、常にピンチローラ5a,5bが駆
動ローラ1を押圧するよう付勢されている。4は第2の
ピンチローラ軸で、ピンチローラ軸3と同様にシャーシ
2の保持部2c,2dにガイドされ、両端の溝4a,4
bにはピンチローラーバネ4c,4dが係止され、ピン
チローラ5c,5dが駆動ローラ1を常時押圧するよう
付勢されている。各ピンチローラ5a,5b,5c,5
dはそれぞれ、ピンチローラ軸3,4に回転可能に取り
付けられている。
Reference numeral 3 denotes a first pinch roller shaft, which is a holding portion 2 of the chassis 2.
The ends of the pinch roller springs 4a and 4b are guided by the grooves of a and 2b, respectively, and the other ends of the pinch roller springs 4a and 4b, which are locked to the chassis 2 or a fixed portion equivalent thereto, are locked to the grooves 3a and 3b at both ends. By the force, the pinch rollers 5a and 5b are constantly urged to press the drive roller 1. Reference numeral 4 denotes a second pinch roller shaft, which is guided by the holding portions 2c and 2d of the chassis 2 similarly to the pinch roller shaft 3 and has grooves 4a and 4 at both ends.
Pinch roller springs 4c and 4d are locked to b, and the pinch rollers 5c and 5d are urged to constantly press the drive roller 1. Each pinch roller 5a, 5b, 5c, 5
d is rotatably attached to the pinch roller shafts 3 and 4, respectively.

6は各ピンチローラを駆動ローラ1から離間解除する時
の連絡板で、シャーシ2の保持部2e,2fに揺動可能
に保持されている。第2図は保持部2e(2f)と連結
板6の溝6a(6b)の結合関係を示しており、保持部
2e(2f)の溝2ee(2ff)に連絡板6の溝6a(6
b)のふちが遊嵌し、またバネ4a,4b(4c,4
d)の作用によつて連絡板6はA方向にズレることがな
く、連絡板6が外れないようになつている。連絡板6
は、その一方の突出部6cがピンチローラ軸3の端部を
係止し、他方の突出部6dがピンチローラ軸4の端部を
係止している。ピンチローラ軸3の端面には、第3図
(A)に示す如く、リンク7が固定されており、更にこの
リンク7は、印字装置の側面に固定された回転軸8を中
心に回転するピンチローラのリリースレバー9とピン1
0で回転自在に連結されている。このリリースレバー9
をB方向に回すと、ピンチローラバネ4aに抗して、ピ
ンチローラ軸3のリンク7と結合した側の端部が押下さ
れる。ローラ軸3の一端部の降下は、連絡板6を保持部
2e,2fを略中心としてC方向に回動させ、結局ピン
チローラ軸4の一端部をも、ピンチローラバネ4cを抗
して下方に降下させ、各ピンチローラ5a,5b,5
c,5dを第3図(A),(B)に示す如く駆動ローラ1に圧
接させた状態から、第4図(A),(B)に示す如く駆動ロー
ラ1から離間した解除状態とする。このようなピンチロ
ーラの解除状態は、不図示のクリック機構によつて保持
され、この状態で印字用紙の装填、位置調整等がなされ
る。
Reference numeral 6 denotes a connecting plate for releasing each pinch roller from the driving roller 1, and is held by the holding portions 2e and 2f of the chassis 2 so as to be swingable. FIG. 2 shows a coupling relationship between the holding portion 2e (2f) and the groove 6a (6b) of the connecting plate 6, and the groove 6a (6f of the connecting plate 6 is inserted into the groove 2ee (2ff) of the holding portion 2e (2f).
The edge of b) is loosely fitted, and the springs 4a, 4b (4c, 4)
Due to the action of d), the connecting plate 6 does not shift in the A direction, and the connecting plate 6 is prevented from coming off. Contact plate 6
One of the protrusions 6c locks the end of the pinch roller shaft 3 and the other protrusion 6d locks the end of the pinch roller shaft 4. The end surface of the pinch roller shaft 3 is shown in FIG.
As shown in (A), a link 7 is fixed, and the link 7 further includes a pinch roller release lever 9 and a pin 1 that rotate around a rotary shaft 8 fixed to the side surface of the printing apparatus.
It is rotatably connected at 0. This release lever 9
When is rotated in the B direction, the end of the pinch roller shaft 3 on the side connected to the link 7 is pressed against the pinch roller spring 4a. The lowering of one end of the roller shaft 3 causes the communication plate 6 to rotate in the C direction about the holding portions 2e and 2f, and eventually one end of the pinch roller shaft 4 also moves downward against the pinch roller spring 4c. To the pinch rollers 5a, 5b, 5
C and 5d are pressed against the driving roller 1 as shown in FIGS. 3 (A) and 3 (B), and then released from the driving roller 1 as shown in FIGS. 4 (A) and 4 (B). . The released state of the pinch roller is held by a click mechanism (not shown), and in this state, the printing paper is loaded and the position is adjusted.

尚、本発明は上記実施例に限定するものではなく、例え
ば、1つのピンチローラ軸に1つまたは3つ以上のピン
チローラを取り付けたものでも良く、また3つ以上のピ
ンチローラ軸を有し、各ローラ軸の一端を動かすように
しても良い。
The present invention is not limited to the above-described embodiment, and for example, one or more pinch roller shafts may be attached to one pinch roller shaft, or three or more pinch roller shafts may be provided. Alternatively, one end of each roller shaft may be moved.

(効 果) 以上述べたように、本発明によれば、部品点数を減少さ
せ、更に構造、組立も簡単にすることができるので、安
価な紙送り機構を提供できる。また、ピンチローラを解
除する時に、各ピンチローラ軸の片側のみを押し下げる
ので、各ピンチローラ軸のそれぞれの両側を押し下げる
ものに比べて操作力が低減でき、操作が容易となる。
(Effects) As described above, according to the present invention, the number of parts can be reduced and the structure and assembly can be simplified, so that an inexpensive paper feeding mechanism can be provided. Further, when releasing the pinch rollers, only one side of each pinch roller shaft is pushed down, so the operation force can be reduced and operation becomes easier compared to the case where both sides of each pinch roller shaft are pushed down.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明の実施例の斜視図、 第2図は第1図のII−II線断面図、 第3図(A)はピンチローラ圧接時の本実施例の側面図、
(B)は正面図、第4図(A)はピンチローラ離間時の本実施
例の側面図、(B)は正面図。 1……駆動ローラ、3,4……ピンチローラ軸 5a,5b,5c,5d……ピンチローラ 6……連絡板、9……リリースレバー
1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 (A) is a side view of the present embodiment at the time of pinch roller pressure contact,
4B is a front view, FIG. 4A is a side view of the present embodiment when the pinch rollers are separated, and FIG. 4B is a front view. 1 ... drive roller, 3, 4 ... pinch roller shaft 5a, 5b, 5c, 5d ... pinch roller 6 ... contact plate, 9 ... release lever

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】紙を搬送するために回転する駆動ローラ
と、 前記駆動ローラの長手方向と平行な方向に並べて配置さ
れた複数のピンチローラ軸と、 前記複数のピンチローラ軸に対して、それぞれ回転自在
に設けられた複数のピンチローラと、 前記複数のピンチローラ軸の、それぞれの両端部を遊嵌
させて支持する穴を有する複数の支持部材と、 前記ピンチローラを前記駆動ローラに圧接させる付勢手
段と、 前記複数のピンチローラ軸のうち、第1のピンチローラ
軸の一端を動かして該第1のピンチローラ軸に支持され
たピンチローラを前記駆動ローラより離間させる手段
と、 前記第1のピンチローラ軸の一端および他のピンチロー
ラ軸の一端と当接し、前記第1のピンチローラ軸の動き
を他のピンチローラ軸に伝達することによって、前記第
1のピンチローラ軸の動きと連動して他のピンチローラ
軸の一端が動いて該他のピンチローラ軸に支持されたピ
ンチローラを前記駆動ローラより離間させる伝達部材
と、 を有することを特徴とする紙送り機構。
1. A drive roller that rotates to convey paper, a plurality of pinch roller shafts that are arranged side by side in a direction parallel to the longitudinal direction of the drive roller, and a plurality of pinch roller shafts, respectively. A plurality of rotatably provided pinch rollers, a plurality of support members having holes for loosely fitting and supporting both ends of the plurality of pinch roller shafts, and the pinch rollers in pressure contact with the drive roller Urging means, means for moving one end of the first pinch roller shaft among the plurality of pinch roller shafts to separate the pinch roller supported by the first pinch roller shaft from the drive roller, By contacting one end of one pinch roller shaft and one end of another pinch roller shaft and transmitting the movement of the first pinch roller shaft to the other pinch roller shaft, A transmission member for moving one end of the other pinch roller shaft in conjunction with the movement of the first pinch roller shaft to separate the pinch roller supported by the other pinch roller shaft from the drive roller. Paper feeding mechanism.
JP58064209A 1983-04-12 1983-04-12 Paper feed mechanism Expired - Lifetime JPH0615250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58064209A JPH0615250B2 (en) 1983-04-12 1983-04-12 Paper feed mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58064209A JPH0615250B2 (en) 1983-04-12 1983-04-12 Paper feed mechanism

Publications (2)

Publication Number Publication Date
JPS59188468A JPS59188468A (en) 1984-10-25
JPH0615250B2 true JPH0615250B2 (en) 1994-03-02

Family

ID=13251456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58064209A Expired - Lifetime JPH0615250B2 (en) 1983-04-12 1983-04-12 Paper feed mechanism

Country Status (1)

Country Link
JP (1) JPH0615250B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940010997B1 (en) * 1987-03-23 1994-11-22 세이꼬 엡슨 가부시끼가이샤 Printer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738176A (en) * 1980-08-11 1982-03-02 Serabisu Sa Feed roller for typewriter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6224535Y2 (en) * 1981-03-10 1987-06-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738176A (en) * 1980-08-11 1982-03-02 Serabisu Sa Feed roller for typewriter

Also Published As

Publication number Publication date
JPS59188468A (en) 1984-10-25

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