JPH0577976A - Roll paper mounting mechanism - Google Patents

Roll paper mounting mechanism

Info

Publication number
JPH0577976A
JPH0577976A JP24098791A JP24098791A JPH0577976A JP H0577976 A JPH0577976 A JP H0577976A JP 24098791 A JP24098791 A JP 24098791A JP 24098791 A JP24098791 A JP 24098791A JP H0577976 A JPH0577976 A JP H0577976A
Authority
JP
Japan
Prior art keywords
roll paper
paper
shaft
holder
mounting mechanism
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
JP24098791A
Other languages
Japanese (ja)
Other versions
JP2638350B2 (en
Inventor
Satoshi Yoshihara
聡 吉原
Mikio Naruse
幹夫 成瀬
Katsushi Inoue
勝史 井上
Manabu Eguchi
学 江口
Naoki Hatada
尚起 畑田
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 JP3240987A priority Critical patent/JP2638350B2/en
Publication of JPH0577976A publication Critical patent/JPH0577976A/en
Application granted granted Critical
Publication of JP2638350B2 publication Critical patent/JP2638350B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Handling Of Continuous Sheets Of Paper (AREA)
  • Unwinding Webs (AREA)

Abstract

PURPOSE:To provide a roll paper mounting mechanism wherein a paper tube of various internal diameters can be held further with good operability at the time of changing roll paper. CONSTITUTION:A roll paper holder can be matched with a paper tube of various internal diameters by mutually slide-moving contact members A3, B4, brought into contact with the paper tube in a symmetrical position relating to a shaft 1, to extend and contract in a diametric direction of a shaft 1. Further by making contact with the paper tube through leaf springs 5, the roll paper holder can stably hold roll paper, and by providing an equal slide-moving amount of the contact members A3, B4 by connecting rack gear part 6 therebetween through a single gear 7, when the roll paper holder is matched with an internal diameter of the roll paper tube, a rotary shaft of the roll paper can be easily coaxially placed with the axis of the roll paper holder shaft.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、サーマルプリンタ等に
用いるロール紙取り付け機構に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper mounting mechanism used in a thermal printer or the like.

【0002】[0002]

【従来の技術】従来のサーマルプリンタのロール紙取り
付け機構は、図2に示すように、ロール紙の紙管の内部
にロール紙保持体101を挿入してロール紙を保持して
ロール紙保持体101に取り付けられたシャフト102
のまわりにロール紙を回動する構成で、ロール紙保持体
101はドラム状単体部品であるものや、図3に示すよ
うにロール紙を両側から一対のロール紙保持板103が
挟み保持してロール紙保持板103に取り付けられたシ
ャフト104のまわりにロール紙を回動する構成で、ロ
ール紙保持板103の紙管当接部材105は紙管の内径
にあわせて移動することのできるものがある。
2. Description of the Related Art As shown in FIG. 2, a roll paper mounting mechanism of a conventional thermal printer is configured so that a roll paper holder 101 is inserted into a paper core of a roll paper to hold the roll paper and hold the roll paper. Shaft 102 attached to 101
A roll paper holder 101 is a drum-shaped single component, or a pair of roll paper holding plates 103 sandwiches and holds the roll paper from both sides as shown in FIG. In the configuration in which the roll paper is rotated around the shaft 104 attached to the roll paper holding plate 103, the paper tube abutting member 105 of the roll paper holding plate 103 can move according to the inner diameter of the paper tube. is there.

【0003】[0003]

【発明が解決しようとする課題】従来のロール紙取り付
け機構のうち図2に示すようにロール紙の紙管の内部に
ロール紙保持体を挿入してロール紙を保持する構成のも
のは、ロール紙保持体はドラム状単体であるため、取り
付けるロール紙の内径のサイズは一種類であり、サイズ
の異なる内径のロール紙は取り付けることができない。
また、図3に示すようなロール紙を両側から一対のロー
ル紙保持板が挟み保持する構成のものは、ロール紙の取
り付け時に毎回、両側のロール紙保持板をシャフトに固
定しなければならず、ロール紙の紙管の内部にロール紙
保持体を挿入してロール紙を保持する構成のものに比べ
操作性が悪い。
Among the conventional roll paper mounting mechanisms, as shown in FIG. 2, a roll paper holder is inserted into the paper core of the roll paper to hold the roll paper. Since the paper holder is a drum-shaped single body, there is only one type of inner diameter of the roll paper to be mounted, and roll papers having different inner diameters cannot be mounted.
Further, in a configuration in which a pair of roll paper holding plates are sandwiched and held from both sides as shown in FIG. 3, the roll paper holding plates on both sides must be fixed to the shaft every time the roll paper is attached. The operability is poor as compared with the configuration in which the roll paper holder is inserted inside the paper core of the roll paper to hold the roll paper.

【0004】本発明は、前記従来の課題を解決するた
め、様々な内径サイズの紙管を保持することができ、し
かもロール紙交換時の操作性のよいロール紙取り付け機
構を提供することを目的とする。
In order to solve the above-mentioned conventional problems, it is an object of the present invention to provide a roll paper mounting mechanism capable of holding paper tubes of various inner diameters and having good operability when replacing the roll paper. And

【0005】[0005]

【課題を解決するための手段】前記目的を達成するため
本発明は下記の構成からなる。すなわち本発明はロール
紙の紙管の内部にロール紙保持体を挿入してロール紙を
保持し、前記ロール紙保持体に取り付けられたシャフト
のまわりに前記ロール紙を回動する構成で、前記ロール
紙保持体は前記シャフトに対する対称位置で前記紙管に
当接するふたつの当接部材が互いにスライド移動するこ
とにより前記シャフトの径方向に伸縮して前記ロール紙
の紙管の内径サイズにあわせることができるロール紙取
り付け機構を具備したことを特徴とする。
In order to achieve the above object, the present invention has the following constitution. That is, the present invention has a configuration in which a roll paper holder is inserted inside the roll paper core to hold the roll paper, and the roll paper is rotated around a shaft attached to the roll paper holder. The roll paper holder is expanded and contracted in the radial direction of the shaft by the sliding movement of two abutting members that abut the paper tube at symmetrical positions with respect to the shaft, so as to match the inner diameter size of the paper tube of the roll paper. It is characterized by having a roll paper mounting mechanism capable of

【0006】前記本発明の構成において、ふたつの前記
当接部材には板バネが固定され前記紙管に前記板バネを
介して当接する機構と、ふたつの前記当接部材がそれぞ
れラック歯車部を有し、それぞれの前記ラック歯車部が
一個の歯車を介し連結することにより、ふたつの前記当
接部材のスライド移動の移動量は同じとする機構を具備
することが好ましい。
In the structure of the present invention, a mechanism is provided in which leaf springs are fixed to the two abutting members so as to abut the paper tube via the leaf springs, and the two abutting members respectively form rack gear portions. It is preferable that a mechanism is provided in which the rack gear portions are connected to each other via one gear, so that the sliding amounts of the two contact members are the same.

【0007】[0007]

【作用】前記本発明の構成によれば、ロール紙保持体は
シャフトに対する対称位置で紙管に当接するふたつの当
接部材が互いにスライド移動することによりシャフトの
径方向に伸縮して様々な紙管の内径サイズにあわせるこ
とができる。一度、ロール紙保持体をロール紙の紙管の
内径サイズにあわせると、プリンタに取り付けるロール
紙の内径サイズがあわせたサイズと同じであれば、ロー
ル紙保持体をロール紙の紙管の内側に挿入して、ロール
紙保持体のシャフトをプリンタ本体のシャフト受けに据
えることで、ロール紙は簡単にプリンタ本体に取り付け
られる。
According to the structure of the present invention, in the roll paper holder, two abutting members abutting the paper tube at symmetrical positions with respect to the shaft slide with respect to each other to expand and contract in the radial direction of the shaft, and various papers can be extended. It can be adjusted to the inner diameter of the pipe. Once the roll paper holder is aligned with the inner diameter of the roll paper core, and if the inner diameter of the roll paper to be installed in the printer is the same size, place the roll paper holder inside the roll paper core. By inserting and setting the shaft of the roll paper holder on the shaft receiver of the printer body, the roll paper can be easily attached to the printer body.

【0008】さらに本発明の好ましい態様によれば、板
バネを介してロール紙保持体が紙管に当接することよ
り、ロール紙保持体はロール紙を安定して保持すること
ができ、また、当接部材がそれぞれラック歯車部を有
し、それぞれのラック歯車部が一個の歯車を介し連結し
て、ふたつの当接部材のスライド移動の移動量は同じに
することより、ロール紙保持体をロール紙の紙管の内径
サイズにあわせるとき、簡単にロール紙の回転軸とロー
ル紙保持体のシャフトの軸が同軸になるようにできる。
Further, according to a preferred aspect of the present invention, the roll paper holder is capable of stably holding the roll paper because the roll paper holder comes into contact with the paper tube via the leaf spring. Each of the contact members has a rack gear portion, and each rack gear portion is connected through one gear, and the two slide members have the same amount of sliding movement. When adjusting the inner diameter of the roll paper core, the rotation axis of the roll paper and the shaft of the roll paper holder can be easily made coaxial.

【0009】[0009]

【実施例】以下、図面を用いて本発明による一実施例を
説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings.

【0010】図1に本発明におけるサーマルプリンタの
ロール紙取り付け機構の一実施例を示す。図1aは平面
図、図1bは同正面図である。ロール紙保持体はシャフ
ト1とシャフト1の中心部に固定された中心体2と中心
体2に互いに矢印イの方向にスライド移動できるように
取り付けられた当接部材A3と当接部材B4により構成
されている。当接部材A3と当接部材B4には紙管の内
側に当接する面に板バネ5が取り付けられている。当接
部材A3と当接部材B4には、ラック歯車6が取り付け
られ、それぞれのラック歯車6は歯車7によって連結さ
れ、歯車7は係止爪8によって動きを止められる。この
状態でまず、係止爪8を歯車7から外し、当接部材A3
を矢印イの方向に移動させると当接部材A3と当接部材
B4のそれぞれのラック歯車6が歯車7によって連結さ
れていることより、当接部材B4も同じ移動量の移動を
する。当接部材A3と当接部材B4がロール紙の紙管の
内径にちょうどはまる位置で係止爪8を歯車7に入れて
当接部材A3と当接部材B4の移動を止めて固定する。
次にロール紙保持体をロール紙の紙管の内部に挿入す
る。このときロール紙は板バネ5によりしっかりと保持
される。この状態でプリンタ本体のシャフト受けにシャ
フト1を据えることで、ロール紙はプリンタ本体に取り
付けられる。
FIG. 1 shows an embodiment of a roll paper mounting mechanism of a thermal printer according to the present invention. 1a is a plan view and FIG. 1b is a front view of the same. The roll paper holder comprises a shaft 1, a central body 2 fixed to the central portion of the shaft 1, and an abutting member A3 and an abutting member B4 mounted on the central body 2 so as to be slidable relative to each other in the direction of arrow a. Has been done. The leaf springs 5 are attached to the contact members A3 and B4 on the surfaces that contact the inside of the paper tube. Rack gears 6 are attached to the contact members A3 and B4, the rack gears 6 are connected by gears 7, and the gears 7 are stopped by the locking claws 8. In this state, first, the locking claw 8 is removed from the gear 7, and the contact member A3
When is moved in the direction of arrow a, the rack gears 6 of the contact member A3 and the contact member B4 are connected by the gear 7, so that the contact member B4 also moves by the same amount. At the position where the contact members A3 and B4 fit exactly into the inner diameter of the roll paper core, the locking claw 8 is inserted into the gear 7 to stop the movement of the contact members A3 and B4 and fix them.
Next, the roll paper holder is inserted into the core of the roll paper. At this time, the roll paper is firmly held by the leaf spring 5. By setting the shaft 1 on the shaft receiver of the printer body in this state, the roll paper is attached to the printer body.

【0011】[0011]

【発明の効果】以上説明した通り、本発明によれば、ロ
ール紙保持体はシャフトに対する対称位置で紙管に当接
するふたつの当接部材が互いにスライド移動することに
よりシャフトの径方向に伸縮して様々な紙管の内径サイ
ズにあわせることができ、一度、ロール紙保持体をロー
ル紙の紙管の内径サイズにあわせると、プリンタに取り
付けるロール紙の内径サイズがあわせたサイズと同じで
あれば、ロール紙保持体をロール紙の紙管の内側に挿入
して、ロール紙保持体のシャフトをプリンタ本体のシャ
フト受けに据えることで、ロール紙は簡単にプリンタ本
体に取り付けられるという効果を達成できる。
As described above, according to the present invention, the roll paper holder expands and contracts in the radial direction of the shaft by the sliding movement of the two abutting members abutting the paper tube at symmetrical positions with respect to the shaft. Can be adjusted to various inner diameters of the paper tube, and once the roll paper holder is adjusted to the inner diameter of the paper tube of the roll paper, if the inner diameter of the roll paper attached to the printer is the same size. By inserting the roll paper holder inside the paper core of the roll paper and placing the shaft of the roll paper holder on the shaft receiver of the printer body, the effect that the roll paper can be easily attached to the printer body can be achieved. .

【0012】さらに本発明の好ましい態様によれば、板
バネを介してロール紙保持体が紙管に当接することによ
り、ロール紙保持体はロール紙を安定して保持すること
ができ、また、当接部材がそれぞれラック歯車部を有
し、それぞれのラック歯車部が一個の歯車を介し連結し
て、ふたつの当接部材のスライド移動の移動量は同じに
することより、ロール紙保持体をロール紙の紙管の内径
サイズにあわせるとき、簡単にロール紙の回転軸とロー
ル紙保持体のシャフトの軸が同軸になるようにできる。
Further, according to a preferred aspect of the present invention, the roll paper holder can stably hold the roll paper by bringing the roll paper holder into contact with the paper tube via the leaf spring. Each of the contact members has a rack gear portion, and each rack gear portion is connected through one gear, and the two slide members have the same amount of sliding movement. When adjusting the inner diameter of the roll paper core, the rotation axis of the roll paper and the shaft of the roll paper holder can be easily made coaxial.

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

【図1】(a)本発明の一実施例におけるロール紙取り
付け機構の平面図 (b)本発明の一実施例におけるロール紙取り付け機構
の正面図
FIG. 1A is a plan view of a roll paper mounting mechanism according to an embodiment of the present invention. FIG. 1B is a front view of a roll paper mounting mechanism according to an embodiment of the present invention.

【図2】従来のロール紙取り付け機構の斜視図FIG. 2 is a perspective view of a conventional roll paper mounting mechanism.

【図3】従来のロール紙取り付け機構の斜視図FIG. 3 is a perspective view of a conventional roll paper mounting mechanism.

【符号の説明】[Explanation of symbols]

1 シャフト 2 中心体 3 当接部材A 4 当接部材B 5 板バネ 6 ラック歯車 7 歯車 8 係止爪 1 Shaft 2 Central Body 3 Contact Member A 4 Contact Member B 5 Leaf Spring 6 Rack Gear 7 Gear 8 Locking Claw

───────────────────────────────────────────────────── フロントページの続き (72)発明者 江口 学 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 畑田 尚起 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Manabu Eguchi 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Naoki Hatada, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 ロール紙の紙管の内部にロール紙保持体
を挿入してロール紙を保持するロール紙取付け機構にお
いて、前記ロール紙の回転軸となるシャフトに対する対
称位置で互いにスライドし、かつ前記紙管に当接するふ
たつの当接部材を有し、前記当接部材が前記シャフトの
径方向に伸縮して前記ロール紙の紙管の内径サイズに合
うよう調整自在のロール紙取り付け機構。
1. A roll paper attaching mechanism for holding a roll paper by inserting a roll paper holder into a paper core of the roll paper, wherein the roll paper slides at mutually symmetrical positions with respect to a shaft serving as a rotation axis of the roll paper, and A roll paper mounting mechanism that has two contact members that come into contact with the paper tube, and that the contact member expands and contracts in the radial direction of the shaft so as to match the inner diameter size of the paper tube of the roll paper.
【請求項2】 ふたつの当接部材の当接部には板バネが
固定され紙管に前記板バネを介して当接することを特徴
とする請求項1記載のロール紙取り付け機構。
2. The roll paper mounting mechanism according to claim 1, wherein a leaf spring is fixed to the abutting portions of the two abutting members and abuts against the paper tube via the leaf spring.
【請求項3】 ふたつの当接部材がそれぞれラック歯車
部を有し、それぞれの前記ラック歯車部が共通の一個の
歯車を介し連結することにより、ふたつの前記当接部材
のスライド移動の移動量は同じであることを特徴とする
請求項1記載のロール紙取り付け機構。
3. The two contact members each have a rack gear portion, and the rack gear portions are connected to each other via a common gear, whereby the amount of sliding movement of the two contact members is increased. 2. The roll paper mounting mechanism according to claim 1, wherein are the same.
JP3240987A 1991-09-20 1991-09-20 Roll paper mounting mechanism Expired - Lifetime JP2638350B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3240987A JP2638350B2 (en) 1991-09-20 1991-09-20 Roll paper mounting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3240987A JP2638350B2 (en) 1991-09-20 1991-09-20 Roll paper mounting mechanism

Publications (2)

Publication Number Publication Date
JPH0577976A true JPH0577976A (en) 1993-03-30
JP2638350B2 JP2638350B2 (en) 1997-08-06

Family

ID=17067636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3240987A Expired - Lifetime JP2638350B2 (en) 1991-09-20 1991-09-20 Roll paper mounting mechanism

Country Status (1)

Country Link
JP (1) JP2638350B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007026470A1 (en) 2005-08-31 2007-03-08 Seiko I Infotech Inc. Rolled body holder and recorder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52170980U (en) * 1976-06-21 1977-12-26
JPS5818905A (en) * 1981-07-28 1983-02-03 ヴイアチエスラフ・ニコラエヴイツチ・ブカレフ Method of nitriding part of magnetic circuit formed of armco iron
JPS6366051A (en) * 1986-09-05 1988-03-24 Matsushita Graphic Commun Syst Inc Roll paper setting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52170980U (en) * 1976-06-21 1977-12-26
JPS5818905A (en) * 1981-07-28 1983-02-03 ヴイアチエスラフ・ニコラエヴイツチ・ブカレフ Method of nitriding part of magnetic circuit formed of armco iron
JPS6366051A (en) * 1986-09-05 1988-03-24 Matsushita Graphic Commun Syst Inc Roll paper setting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007026470A1 (en) 2005-08-31 2007-03-08 Seiko I Infotech Inc. Rolled body holder and recorder

Also Published As

Publication number Publication date
JP2638350B2 (en) 1997-08-06

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