JPH05170367A - Chart feeding device - Google Patents
Chart feeding deviceInfo
- Publication number
- JPH05170367A JPH05170367A JP33922391A JP33922391A JPH05170367A JP H05170367 A JPH05170367 A JP H05170367A JP 33922391 A JP33922391 A JP 33922391A JP 33922391 A JP33922391 A JP 33922391A JP H05170367 A JPH05170367 A JP H05170367A
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- elastic member
- roll
- chart
- feeding
- 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.)
- Pending
Links
Landscapes
- Handling Of Continuous Sheets Of Paper (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばファクシミリ装
置、プリンタ等の記録装置に用いられる記録紙給送装置
に関し、特にロール状記録紙を給送する際のバックテン
ション変動を防止する記録紙給送装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording paper feeding device used for a recording device such as a facsimile machine or a printer, and more particularly to a recording paper feeding device for preventing back tension fluctuation when feeding a roll-shaped recording paper. Regarding the sending device.
【０００２】[0002]
【従来の技術】従来の記録紙給送装置としては、例え
ば、図４（ａ）に示すようなものがある。図４（ａ）に
示すファクシミリ装置の記録紙給送装置１１は、サーマ
ルヘッド１２とプラテンローラ１３を備えた感熱方式で
あり、通常、受信時には、図４（ｂ）に示すように、給
送ローラであるプラテンローラ１３が停止と回転を繰り
返す。即ち、プラテンローラ１３の外周の変位Ｐ（以
下、単に変位Ｐという）は時間の経過に対して間欠的な
駆動となる。2. Description of the Related Art As a conventional recording paper feeding device, for example, there is one shown in FIG. The recording paper feeding device 11 of the facsimile device shown in FIG. 4A is a heat-sensitive system including a thermal head 12 and a platen roller 13. Normally, at the time of reception, as shown in FIG. The platen roller 13, which is a roller, repeatedly stops and rotates. That is, the displacement P of the outer periphery of the platen roller 13 (hereinafter, simply referred to as displacement P) is an intermittent drive with the passage of time.
【０００３】また、大半の感熱方式のファクシミリ装置
１１は、図４（ａ）に示す様に、箱体または溝形状の保
持部１４の底部に収納された記録紙ロール１５の記録紙
１６を反転ローラ１７で反転し、プラテンローラ１３で
引張って、搬送している。ファクシミリ装置１１によっ
ては、反転ローラ１７を有しておらず、保持部１４内の
記録紙ロール１５から記録紙１６をプラテンローラ１３
で直接に引張っているものもある。In most of the heat-sensitive facsimile machines 11, as shown in FIG. 4A, the recording paper 16 of the recording paper roll 15 housed in the bottom of the box-shaped or groove-shaped holding portion 14 is reversed. The roller 17 reverses and the platen roller 13 pulls and conveys. Some of the facsimile machines 11 do not have the reversing roller 17, and instead of the recording paper roll 15 in the holding unit 14, the recording paper 16 is transferred to the platen roller 13
Some are directly pulled by.
【０００４】一方、プラテンローラ１３は、サーマルヘ
ッド１２の発熱体と記録紙１６を密着させる必要がある
ため、図５（ａ）に示す様に、芯金１３Ａの周りにゴム
１３Ｂを巻いたローラとなっている。On the other hand, since the platen roller 13 needs to bring the heating element of the thermal head 12 and the recording paper 16 into close contact with each other, as shown in FIG. 5 (a), a roller having a rubber 13B wound around a core metal 13A. Has become.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来技術の記録紙給送装置１１にあっては、記録紙
ロール１５が保持部１４内の底部に載置されることによ
り保持されているため、プラテンローラ１３が回転し記
録紙１６が引張られると、記録紙ロール１５が回転し、
記録紙ロール１５の外周面と保持部１４の内面と摩擦接
触してプラテンローラ１３の回転時に、記録紙１６にバ
ックテンションＴが発生する。バックテンションＴが小
さいときには図５（ｂ）に示すように、プラテンローラ
１３のゴム１３Ｂはあまり変形しないが、バックテンシ
ョンＴが大きいときには、図５（ｃ）に示すように、ゴ
ム１３Ｂに変形１３ａが生ずる。記録紙ロール１５には
回転方向の慣性があるため、プラテンローラ１３が止ま
って記録紙１６の引張りを止めても記録紙ロール１５は
多少回転し、記録紙１６がたるむ。これらの運動と、プ
ラテンローラ１３の間欠駆動により、バックテンション
Ｔは強弱の変動をする。However, in such a conventional recording paper feeding device 11, the recording paper roll 15 is held by being placed on the bottom of the holding portion 14. Therefore, when the platen roller 13 rotates and the recording paper 16 is pulled, the recording paper roll 15 rotates,
Back tension T is generated on the recording paper 16 when the platen roller 13 is rotated by frictionally contacting the outer peripheral surface of the recording paper roll 15 and the inner surface of the holding portion 14. When the back tension T is small, the rubber 13B of the platen roller 13 is not so much deformed as shown in FIG. 5B, but when the back tension T is large, the rubber 13B is deformed 13a as shown in FIG. 5C. Occurs. Since the recording paper roll 15 has inertia in the rotation direction, even if the platen roller 13 stops and the pulling of the recording paper 16 is stopped, the recording paper roll 15 rotates a little and the recording paper 16 sags. Due to these movements and the intermittent drive of the platen roller 13, the back tension T varies in strength.
【０００６】この時の、記録紙１６の送りは図６（ａ）
に示す様になる。即ち、区間（Ａ）では、記録紙１６の
バックテンションＴが０から除々に強くなり、プラテン
ローラ１３のゴムの変形１３ａが除々に大きくなってい
る。このため、記録紙１６はプラテンローラ１３の回転
量に対し遅れる。区間（Ｂ）では、記録紙１６のバック
テンションＴがほぼ一定となり、ゴムの変形力と釣り合
っている。このため、ゴムの変形１３ａは一定となり、
プラテンローラ１３の回転量と記録紙の送り（変位Ｑ）
は一致する。The feeding of the recording paper 16 at this time is shown in FIG.
As shown in. That is, in the section (A), the back tension T of the recording paper 16 gradually increases from 0, and the deformation 13a of the rubber of the platen roller 13 gradually increases. Therefore, the recording paper 16 lags behind the rotation amount of the platen roller 13. In the section (B), the back tension T of the recording paper 16 is almost constant and balanced with the deforming force of the rubber. Therefore, the deformation 13a of the rubber becomes constant,
Rotation amount of platen roller 13 and feed of recording paper (displacement Q)
Match.
【０００７】区間（Ｃ）の始まりでプラテンローラ１３
は止まるが、前述の様に記録紙１６がたるみ、バックテ
ンションＴが０に近くなる。このとき、プラテンローラ
のゴム１３Ｂは変形状態から元にもどろうとするため、
記録紙１６が引っ張られ、送られることになる。印字は
図６（ａ）の区間〜で行われているため上記の場
合、印字終了後、「Ｌ」だけ記録紙が送られることにな
る。図６（ｂ）、（ｃ）に示すように、ゴムの変形がな
い場合は印字は等間隔に正常になり、ゴムの変形がある
場合は出力画像が区間（Ａ）で重なり合い、区間（ｃ）
で、距離Ｌ分だけ画像が抜けることになる。この現象は
間欠駆動によるバックテンションＴの変動で起こり、
「白すじ」という異常画像を発生する。At the beginning of the section (C), the platen roller 13
However, the recording paper 16 sags as described above, and the back tension T becomes close to zero. At this time, the rubber 13B of the platen roller tries to return from the deformed state to the original state,
The recording paper 16 is pulled and sent. Since the printing is performed in the section from FIG. 6A, in the above case, the recording paper is fed by "L" after the printing is completed. As shown in FIGS. 6B and 6C, when the rubber is not deformed, the printing becomes normal at equal intervals, and when the rubber is deformed, the output images overlap each other in the section (A) and the section (c )
Then, the image is missing by the distance L. This phenomenon occurs due to fluctuations in the back tension T due to intermittent driving,
An abnormal image called "white streaks" is generated.
【０００８】このため、従来より、例えば実公平１−９
１５６１号公報等に記載されているように、バックテン
ションの変動を防止する機構が各種提案されているが、
記録紙ロール１５の交換作業性に劣ったり、変動防止機
構の複雑化によりコストが上昇する等の問題があった。
そこで、請求項１記載の発明は、記録紙ロールが保持部
の底部を移動する方向に発砲性樹脂からなる弾性部材を
設けることにより、記録紙ロールを弾性部材で受け止め
て記録紙のたるみ及びバックテンションの変動を吸収す
る低コストの記録紙給送装置を提供することを目的とし
ている。Therefore, for example, the actual fairness 1-9
As described in Japanese Patent No. 1561, etc., various mechanisms for preventing fluctuations in back tension have been proposed.
There are problems such as poor replacement workability of the recording paper roll 15 and increase in cost due to complication of the fluctuation preventing mechanism.
Therefore, in the invention according to claim 1, an elastic member made of a foaming resin is provided in the direction in which the recording paper roll moves on the bottom of the holding portion, so that the recording paper roll is received by the elastic member and the slack and the back of the recording paper. An object of the present invention is to provide a low-cost recording paper feeding device that absorbs fluctuations in tension.
【０００９】また、請求項２記載の発明は、記録紙ロー
ルが保持部の底部を移動する方向にバネからなる弾性部
材を設けることにより、記録紙ロールを弾性部材で受け
止めて記録紙のたるみ及びバックテンションの変動を吸
収する低コストの記録紙給送装置を提供することを目的
としている。According to the second aspect of the invention, an elastic member made of a spring is provided in the direction in which the recording paper roll moves on the bottom of the holding portion, so that the recording paper roll is received by the elastic member and the slack of the recording paper is reduced. An object of the present invention is to provide a low-cost recording paper feeding device that absorbs fluctuations in back tension.
【００１０】[0010]
【課題を解決するための手段】請求項１記載の発明は、
上記目的を達成するために、ロール状に記録紙を巻き付
けた記録紙ロールを溝内底部に載置して保持する保持部
と、保持された記録紙を記録紙に加わるバックテンショ
ンに逆らって引出し間欠給送する給送ローラと、を備え
た記録紙給送装置において、給送時に前記記録紙ロール
が保持部の底部を移動する方向の保持部内部に、前記記
録紙ロールの軸方向の外周面の一部または全部に接触し
弾性変形する弾性部材を設け、この弾性部材を発砲性樹
脂から構成したことを特徴とする。The invention according to claim 1 is
In order to achieve the above-mentioned object, a holding unit for holding and holding a recording paper roll, which is a roll of recording paper wound on the bottom of the groove, and withdrawing the held recording paper against the back tension applied to the recording paper. In a recording paper feeding device provided with a feeding roller for intermittent feeding, an outer circumference in the axial direction of the recording paper roll is provided inside a holding portion in a direction in which the recording paper roll moves a bottom portion of the holding portion during feeding. It is characterized in that an elastic member which comes into contact with a part or all of the surface and elastically deforms is provided, and the elastic member is made of a foaming resin.
【００１１】また、請求項２記載の発明は、上記目的を
達成するために、ロール状に記録紙を巻き付けた記録紙
ロールを溝内底部に載置して保持する保持部と、保持さ
れた記録紙を記録紙に加わるバックテンションに逆らっ
て引出し間欠給送する給送ローラと、を備えた記録紙給
送装置において、給送時に前記記録紙ロールが保持部の
底部を移動する方向の保持部内部に、前記記録紙ロール
の軸方向の外周面の一部または全部に接触し弾性変形す
る弾性部材を設け、この弾性部材をバネで付勢したこと
を特徴とする。In order to achieve the above-mentioned object, the invention according to claim 2 has a holding portion for holding and holding a recording paper roll having a recording paper wound in a roll shape on the bottom of the groove. In a recording paper feeding device including a feeding roller that intermittently feeds the recording paper against the back tension applied to the recording paper, holding the recording paper roll in a direction in which the recording paper roll moves at the bottom of the holding unit during feeding. An elastic member that elastically deforms by contacting a part or all of the outer peripheral surface in the axial direction of the recording paper roll is provided inside the portion, and the elastic member is urged by a spring.
【００１２】[0012]
【作用】上記構成を有する請求項１記載の発明において
は、給送時に記録紙ロールが保持部の底部を移動する方
向の保持部内部に、前記記録紙ロールの軸方向の外周面
の一部または全部に接触し弾性変形する弾性部材を設
け、この弾性部材を発砲性樹脂から構成する。According to the present invention having the above-mentioned structure, a part of the outer peripheral surface in the axial direction of the recording paper roll is provided inside the holding portion in the direction in which the recording paper roll moves the bottom of the holding portion during feeding. Alternatively, an elastic member that comes into contact with all of them and elastically deforms is provided, and this elastic member is made of a foaming resin.
【００１３】また、上記構成を有する請求項２記載の発
明においては、給送時に記録紙ロールが保持部の底部を
移動する方向の保持部内部に、前記記録紙ロールの軸方
向の外周面の一部または全部に接触し弾性変形する弾性
部材を設け、この弾性部材をバネで付勢する。Further, in the invention according to claim 2 having the above-mentioned structure, the axial outer peripheral surface of the recording paper roll is provided inside the holding portion in the direction in which the recording paper roll moves the bottom portion of the holding portion during feeding. An elastic member that comes into contact with part or all of the elastic deformation is provided, and the elastic member is urged by a spring.
【００１４】[0014]
【実施例】以下、本発明を実施例に基づいて説明する。
図１は請求項１記載の発明の一実施例に係る記録紙給送
装置をファクシミリ装置の受信部に適用した図であり、
同図（ａ）はその要部正面図、同図（ｂ）はその弾性部
材の作用を示す正面図である。なお、本実施例において
前述した従来例と同一の構成については、同一符号を付
してその具体的な説明を省略する。EXAMPLES The present invention will be described below based on examples.
1 is a diagram in which a recording paper feeding device according to an embodiment of the invention described in claim 1 is applied to a receiving portion of a facsimile device,
FIG. 7A is a front view of the relevant part, and FIG. 8B is a front view showing the action of the elastic member. In this embodiment, the same components as those of the conventional example described above are designated by the same reference numerals, and the detailed description thereof will be omitted.
【００１５】まず、構成を説明する。図１（ａ）におい
て、ロール状に記録紙１６を巻き付けた記録紙ロール１
５は、保持部１４の溝内底部に載置されて保持される。
保持された記録紙１６は、給送ローラであるプラテンロ
ーラ１３によって、記録紙１６に加わるバックテンショ
ンＴに逆らって引出され、間欠給送される。ここで、給
送時に記録紙ロール１５が保持部１４の底部を移動する
方向の保持部内部には、例えばスポンジ状の発砲性樹脂
から構成された弾性部材２１が設けられる。この弾性部
材２１は、記録紙ロール１５の軸方向の外周面の一部ま
たは全部に接触し、弾性変形する。First, the structure will be described. In FIG. 1A, a recording paper roll 1 in which a recording paper 16 is wound in a roll shape.
5 is placed and held on the bottom of the groove of the holder 14.
The held recording paper 16 is pulled out against the back tension T applied to the recording paper 16 by the platen roller 13 which is a feeding roller, and is intermittently fed. Here, an elastic member 21 made of, for example, a sponge-like foaming resin is provided inside the holding portion in the direction in which the recording paper roll 15 moves on the bottom of the holding portion 14 during feeding. The elastic member 21 comes into contact with a part or all of the outer peripheral surface of the recording paper roll 15 in the axial direction and elastically deforms.
【００１６】図２は請求項２記載の発明の一実施例に係
る記録紙給送装置をファクシミリ装置の受信部に適用し
た要部正面図である。なお、本実施例において上述例と
同一の構成については、同一符号を付してその具体的な
説明を省略する。まず、構成を説明する。図２におい
て、給送時に記録紙ロール１５が保持部１４の底部を移
動する方向の保持部１４内部には、例えばプラスチック
等の可撓性樹脂または板バネ等から構成された弾性部材
３１が設けられる。この弾性部材３１は、記録紙ロール
１５の軸方向の外周面の一部または全部に接触し、弾性
変形する。そして、この弾性部材３１は、例えばコイル
バネ等のバネ３２で付勢される。FIG. 2 is a front view of a main portion of a recording paper feeding device according to an embodiment of the present invention, which is applied to a receiving portion of a facsimile machine. Note that, in the present embodiment, the same components as those in the above-described example are designated by the same reference numerals, and their detailed description will be omitted. First, the configuration will be described. In FIG. 2, an elastic member 31 made of a flexible resin such as plastic or a leaf spring is provided inside the holding portion 14 in the direction in which the recording paper roll 15 moves the bottom portion of the holding portion 14 during feeding. Be done. The elastic member 31 comes into contact with a part or all of the outer peripheral surface of the recording paper roll 15 in the axial direction and elastically deforms. The elastic member 31 is biased by a spring 32 such as a coil spring.
【００１７】次に、図１、２に示す実施例の作用は同様
なので、図１の実施例でその作用を説明する。図１
（ｂ）において、保持部１４に保持された記録紙ロール
１５から記録紙１６が引き出されると、記録紙ロール１
５は保持部１４底部を回転しながら給送方向に移動する
が、保持部１４内部に設けられた弾性部材２１に当接し
て止まる。引続き記録紙１６が引き出されると、記録紙
ロール１５と保持部１４底部との間に摩擦による力Ｆ1
が発生する。このため、記録紙ロール１５は、力Ｆ1 方
向に弾性部材２１を圧縮し、弾性部材２１の反力Ｆ2 と
釣り合うところで、記録紙ロール１５が回転する。Since the operation of the embodiment shown in FIGS. 1 and 2 is the same, the operation will be described with reference to the embodiment of FIG. Figure 1
In (b), when the recording paper 16 is pulled out from the recording paper roll 15 held by the holding unit 14, the recording paper roll 1
5 moves in the feeding direction while rotating the bottom portion of the holding portion 14, but stops by contacting the elastic member 21 provided inside the holding portion 14. When the recording paper 16 is continuously pulled out, a force F 1 due to friction between the recording paper roll 15 and the bottom of the holding portion 14 is generated.
Occurs. Therefore, the recording paper roll 15 compresses the elastic member 21 in the direction of the force F 1 and the recording paper roll 15 rotates when it balances with the reaction force F 2 of the elastic member 21.
【００１８】プラテンローラ１３が間欠動作を行い、記
録紙１６のバックテンションＴが大きくなるように変動
しようとすると、弾性部材２１が圧縮変形し、バックテ
ンションＴの増加分を吸収し、バックテンションＴの増
大を抑える。プラテンローラ１３が間欠動作を行い、停
止すると、記録紙ロール１５から引き出された記録紙１
６にたるみが発生するが、本実施例では、記録紙１６の
たるみ量より弾性部材２１の変形による記録紙１６の送
り量が大きく設定されているので、プラテンローラ１３
が停止しても弾性部材２１の変形戻りによって記録紙１
６にたるみが発生せず、図１（ｂ）の破線の状態で釣り
合いがとれる。When the platen roller 13 performs an intermittent operation and the back tension T of the recording paper 16 is changed so as to increase, the elastic member 21 is compressed and deformed to absorb the increase in the back tension T, and the back tension T is increased. Suppress the increase of. When the platen roller 13 performs intermittent operation and then stops, the recording paper 1 pulled out from the recording paper roll 15
6 causes slack, but in the present embodiment, since the feed amount of the recording paper 16 due to the deformation of the elastic member 21 is set to be larger than the slack amount of the recording paper 16, the platen roller 13
Even when the recording sheet 1 is stopped, the recording paper 1
No slack is generated in 6 and balance is achieved in the state of the broken line in FIG.
【００１９】この状態では、弾性部材２１の変形がゼロ
にならないので、バックテンションＴもゼロとはならな
い。また、前述したように、プラテンローラ１３の駆動
によりバックテンションＴが増大した場合には、弾性部
材２１の弾性変形によりバックテンションＴの最大値が
抑えられる。このため、バックテンションＴの変動は、
ほぼ一定の値に抑制される。In this state, since the deformation of the elastic member 21 does not become zero, the back tension T also does not become zero. Further, as described above, when the back tension T is increased by driving the platen roller 13, the maximum value of the back tension T is suppressed by the elastic deformation of the elastic member 21. Therefore, the fluctuation of the back tension T is
It is suppressed to an almost constant value.
【００２０】従って、プラテンローラ１３のゴムの変形
もほぼ一定となり、記録紙１６の送りは図３のようにな
る。図３は図１または図２に示す実施例のプラテンロー
ラ１３の変位および記録紙１６の変位を時間に対して示
したグラフである。図３に示すように、プラテンローラ
の変位Ｐの変位量ｄと記録紙１６の変位Ｑの変位量ｄと
は最初の変位量ｄ1，を除き同じとなり、プラテンロー
ラ１３の回転速度とほぼ一致した記録紙１６の送り精度
を得ることができ、「白すじ」のない適性な画像を得る
ことができる。Therefore, the deformation of the rubber of the platen roller 13 becomes substantially constant, and the recording paper 16 is fed as shown in FIG. FIG. 3 is a graph showing the displacement of the platen roller 13 and the displacement of the recording paper 16 of the embodiment shown in FIG. 1 or 2 against time. As shown in FIG. 3, the displacement amount d of the displacement P of the platen roller and the displacement amount d of the displacement Q of the recording paper 16 are the same except for the first displacement amount d 1 , and substantially match the rotation speed of the platen roller 13. The feeding accuracy of the recording paper 16 can be obtained, and an appropriate image without "white lines" can be obtained.
【００２１】なお、弾性部材２１と記録紙ロール１５は
直接触れるので、弾性部材２１の表面に滑らかな部材を
貼り付けることが望ましい。また、弾性部材３１に関し
ても、その表面に滑らかな部材を貼り付けるか、表面状
態が良好な部材を用いるか、滑らかな表面処理を施すこ
とが望ましい。このように、本実施例においては、低コ
ストな弾性部材２１を保持部１４内部に設けることによ
り、記録紙１６に加わるバックテンションＴの変動を抑
制して小さくでき、記録紙１６の送り精度を向上し、適
性な画像を得ることができる。Since the elastic member 21 and the recording paper roll 15 are in direct contact with each other, it is desirable to attach a smooth member to the surface of the elastic member 21. Also, regarding the elastic member 31, it is desirable to attach a smooth member to the surface thereof, use a member having a good surface condition, or perform a smooth surface treatment. As described above, in this embodiment, by providing the low-cost elastic member 21 inside the holding portion 14, the fluctuation of the back tension T applied to the recording paper 16 can be suppressed and reduced, and the feeding accuracy of the recording paper 16 can be improved. It is possible to improve and obtain an appropriate image.
【００２２】[0022]
【発明の効果】以上説明したように、請求項１記載の発
明に係る記録紙給送装置によれば、給送時に記録紙ロー
ルが保持部の底部を移動する方向の保持部内部に、前記
記録紙ロールの軸方向の外周面の一部または全部に接触
し弾性変形する弾性部材を設け、この弾性部材を発砲性
樹脂から構成したので、記録紙に加わるバックテンショ
ンの変動を弾性部材の変形により抑制して小さくでき、
低コストで記録紙の送り精度を向上し、適性な画像を得
ることができる。As described above, according to the recording paper feeding device of the first aspect of the present invention, the recording paper roll is disposed inside the holding portion in the direction in which the recording paper roll moves the bottom portion of the holding portion during feeding. Since an elastic member that elastically deforms by contacting part or all of the outer peripheral surface of the recording paper roll in the axial direction is provided, and this elastic member is made of foaming resin, the fluctuation of the back tension applied to the recording paper is deformed by the elastic member. Can be suppressed and made smaller,
It is possible to improve the feeding accuracy of the recording paper at a low cost and obtain an appropriate image.
【００２３】また、請求項２記載の発明に係る記録紙給
送装置によれば、給送時に記録紙ロールが保持部の底部
を移動する方向の保持部内部に、前記記録紙ロールの軸
方向の外周面の一部または全部に接触し弾性変形する弾
性部材を設け、この弾性部材をバネで付勢したので、記
録紙に加わるバックテンションの変動を弾性部材および
バネの変形により抑制して小さくでき、低コストで記録
紙の送り精度を向上し、適性な画像を得ることができ
る。According to the second aspect of the present invention, the recording paper feeding device has an axial direction of the recording paper roll inside the holding part in the direction in which the recording paper roll moves the bottom part of the holding part during feeding. Since an elastic member that elastically deforms by contacting a part or the whole of the outer peripheral surface of the recording medium is urged by a spring, the fluctuation of the back tension applied to the recording paper is suppressed by the deformation of the elastic member and the spring, and is small. Therefore, it is possible to improve the feeding accuracy of the recording paper and obtain an appropriate image at low cost.
【図１】請求項１記載の発明の一実施例に係る記録紙給
送装置をファクシミリ装置の受信部に適用した図であ
り、同図（ａ）はその要部正面図、同図（ｂ）はその弾
性部材の作用を示す正面図である。FIG. 1 is a diagram in which a recording paper feeding device according to an embodiment of the invention described in claim 1 is applied to a receiving portion of a facsimile apparatus, FIG. 8A is a front view showing the action of the elastic member. FIG.
【図２】請求項２記載の発明の一実施例に係る記録紙給
送装置をファクシミリ装置の受信部に適用した要部正面
図である。FIG. 2 is a front view of a main part of a recording paper feeding device according to an embodiment of the present invention, which is applied to a receiving portion of a facsimile apparatus.
【図３】図１または図２に示す実施例のプラテンローラ
の変位および記録紙の変位を時間に対して示したグラフ
である。3 is a graph showing the displacement of the platen roller and the displacement of the recording paper of the embodiment shown in FIG. 1 or FIG. 2 with respect to time.
【図４】従来のファクシミリ装置の受信部の記録紙給送
装置を示す図で、同図（ａ）はその要部正面図、同図
（ｂ）はそのプラテンローラの変位を時間に対して示し
たグラフである。4A and 4B are views showing a recording sheet feeding device of a receiving portion of a conventional facsimile apparatus, FIG. 4A is a front view of a main portion thereof, and FIG. 4B is a diagram showing displacement of the platen roller with respect to time. It is the graph shown.
【図５】図４に示す記録紙給送装置のプラテンローラを
示す図で、同図（ａ）はその正面図、同図（ｂ）はバッ
クテンションがない場合のその正面図、同図（ｃ）はバ
ックテンションがある場合のその正面図である。5A and 5B are views showing a platen roller of the recording paper feeding device shown in FIG. 4, in which FIG. 5A is a front view thereof, FIG. 5B is a front view thereof when there is no back tension, and FIG. c) is a front view of the case where there is back tension.
【図６】図４に示す記録紙給送装置のプラテンローラの
作動を示す図で、同図（ａ）は時間に対するそのプラテ
ンローラの変位および記録紙の変位を示す図で、同図
（ｂ）はプラテンローラのゴム変形がない場合の記録紙
上の印字例を示す正面図、同図（ｃ）はプラテンローラ
のゴム変形がある場合の記録紙上の印字例を示す正面図
である。6 is a diagram showing the operation of a platen roller of the recording paper feeding device shown in FIG. 4, and FIG. 6 (a) is a diagram showing the displacement of the platen roller and the displacement of the recording paper with respect to time; 6A is a front view showing an example of printing on the recording paper when the platen roller is not deformed by rubber, and FIG. 8C is a front view showing an example of printing on the recording paper when the platen roller is deformed by rubber.
１１ 記録紙給送装置 １３ プラテンローラ（給送ローラ） １４ 保持部 １５ 記録紙ロール １６ 記録紙 ２１、３１ 弾性部材 ３２ バネ Ｔ バックテンション 11 Recording Paper Feeding Device 13 Platen Roller (Feeding Roller) 14 Holding Part 15 Recording Paper Roll 16 Recording Paper 21, 31 Elastic Member 32 Spring T Back Tension
Claims (2)
ルを溝内底部に載置して保持する保持部と、 保持された記録紙を記録紙に加わるバックテンションに
逆らって引出し間欠給送する給送ローラと、を備えた記
録紙給送装置において、 給送時に前記記録紙ロールが保持部の底部を移動する方
向の保持部内部に、前記記録紙ロールの軸方向の外周面
の一部または全部に接触し弾性変形する弾性部材を設
け、この弾性部材を発砲性樹脂から構成したことを特徴
とする記録紙給送装置。1. A holding portion for holding and holding a recording paper roll, which is a roll of recording paper, at the bottom of the groove, and an intermittent feeding for pulling the held recording paper against the back tension applied to the recording paper. In the recording paper feeding device including a feeding roller for rotating the recording paper roll, one of the outer circumferential surfaces of the recording paper roll in the axial direction is provided inside the holding portion in the direction in which the recording paper roll moves the bottom of the holding portion during feeding. A recording paper feeding device, characterized in that an elastic member which is elastically deformed by contact with a part or all of the elastic member is provided, and the elastic member is made of a foaming resin.
ルを溝内底部に載置して保持する保持部と、 保持された記録紙を記録紙に加わるバックテンションに
逆らって引出し間欠給送する給送ローラと、を備えた記
録紙給送装置において、 給送時に前記記録紙ロールが保持部の底部を移動する方
向の保持部内部に、前記記録紙ロールの軸方向の外周面
の一部または全部に接触し弾性変形する弾性部材を設
け、この弾性部材をバネで付勢したことを特徴とする記
録紙給送装置。2. A holding unit for holding and holding a recording paper roll, which is a roll of recording paper wound on the bottom of the groove, and an intermittent feeding for pulling the held recording paper against the back tension applied to the recording paper. In the recording paper feeding device including a feeding roller for rotating the recording paper roll, one of the outer circumferential surfaces of the recording paper roll in the axial direction is provided inside the holding portion in the direction in which the recording paper roll moves the bottom of the holding portion during feeding. A recording paper feeding device, characterized in that an elastic member which is elastically deformed by contacting all or part of the elastic member is provided, and the elastic member is biased by a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33922391A JPH05170367A (en) | 1991-12-24 | 1991-12-24 | Chart feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33922391A JPH05170367A (en) | 1991-12-24 | 1991-12-24 | Chart feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05170367A true JPH05170367A (en) | 1993-07-09 |
Family
ID=18325418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33922391A Pending JPH05170367A (en) | 1991-12-24 | 1991-12-24 | Chart feeding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05170367A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162723A (en) * | 2006-12-27 | 2008-07-17 | Toshiba Tec Corp | Printer |
| JP2013052984A (en) * | 2011-09-05 | 2013-03-21 | Toshiba Tec Corp | Sheet supporting device and printer |
| JP2015006734A (en) * | 2013-06-24 | 2015-01-15 | ブラザー工業株式会社 | Printer |
| JP2017052213A (en) * | 2015-09-10 | 2017-03-16 | 富士通コンポーネント株式会社 | Printer device |
-
1991
- 1991-12-24 JP JP33922391A patent/JPH05170367A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162723A (en) * | 2006-12-27 | 2008-07-17 | Toshiba Tec Corp | Printer |
| JP4579227B2 (en) * | 2006-12-27 | 2010-11-10 | 東芝テック株式会社 | Printer |
| JP2013052984A (en) * | 2011-09-05 | 2013-03-21 | Toshiba Tec Corp | Sheet supporting device and printer |
| JP2015006734A (en) * | 2013-06-24 | 2015-01-15 | ブラザー工業株式会社 | Printer |
| JP2017052213A (en) * | 2015-09-10 | 2017-03-16 | 富士通コンポーネント株式会社 | Printer device |
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