JP2000085168A - Thermal head, manufacture thereof, and printer - Google Patents
Thermal head, manufacture thereof, and printerInfo
- Publication number
- JP2000085168A JP2000085168A JP25343098A JP25343098A JP2000085168A JP 2000085168 A JP2000085168 A JP 2000085168A JP 25343098 A JP25343098 A JP 25343098A JP 25343098 A JP25343098 A JP 25343098A JP 2000085168 A JP2000085168 A JP 2000085168A
- Authority
- JP
- Japan
- Prior art keywords
- support plate
- thermal head
- printer
- supporting plate
- platen roller
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、サーマルヘッド、
サーマルヘッドの作製方法及びサーマルヘッドを備えた
プリンタに関する。The present invention relates to a thermal head,
The present invention relates to a method for manufacturing a thermal head and a printer including the thermal head.
【０００２】[0002]
【従来の技術】従来のサーマルヘッドの一例として、図
３の側面図に示すように、支持板１上に、発熱抵抗体
２、共通電極、個別電極（図示せず）などが形成された
ヘッド基板３と、外部との接続手段であるコネクタ４が
取り付けられた回路基板５が接着などで固定されてお
り、さらに、前記発熱抵抗体２の各ドットを駆動するた
めの駆動素子（図示せず）が搭載され、その上部を樹脂
で封止された封止部６からなっている。2. Description of the Related Art As an example of a conventional thermal head, as shown in a side view of FIG. 3, a head in which a heating resistor 2, a common electrode, individual electrodes (not shown) and the like are formed on a support plate 1. A board 3 and a circuit board 5 to which a connector 4 as a means for connection to the outside are attached are fixed by bonding or the like, and a driving element (not shown) for driving each dot of the heating resistor 2. ) Are mounted, and the upper portion is formed of a sealing portion 6 sealed with a resin.
【０００３】前記支持板１を小型プリンタ用に、例えば
アルミニューム、鉄などの金属製の板を用いる。特に、
ハンディプリンタ用にはサーマルヘッドの総厚みを薄く
するために、厚みが１ｍｍ程度の板を用いることが多
い。この場合には支持板１に穴を設け、プリンタセット
への組み付け時にビスで締め付け固定すればビスが支持
板を突き抜けてヘッド基板や回路基板を破損することが
ある。The support plate 1 is made of a metal plate such as aluminum or iron for a small printer. In particular,
For a handy printer, a plate having a thickness of about 1 mm is often used to reduce the total thickness of the thermal head. In this case, if a hole is formed in the support plate 1 and the screw is fixed with a screw at the time of assembling to the printer set, the screw may pass through the support plate and damage the head substrate or the circuit board.
【０００４】ここで薄い板厚の支持板を用いる場合に
は、図５（Ａ）に示すように、発熱抵抗体２（図３）の
配列方向と同一方向の支持板１の一対の側面に発熱抵抗
体２から離してプリンタの組み付けを行うための支持板
組付片７を支持板と一体に設ける。図５（Ｂ）は、支持
板１をプリンタに組み込む前の状態を示しており、前記
支持板組付片７にそれぞれ支持板組付部材８が差し込ま
れている。該部材８は、図示のように円形ストッパ部８
ａ及び該円形ストッパ部８ａから直立する支持板組み付
けカラー８ｂより成っている。When a thin supporting plate is used, as shown in FIG. 5A, a pair of side surfaces of the supporting plate 1 in the same direction as the arrangement direction of the heating resistors 2 (FIG. 3) are provided. A support plate assembling piece 7 for assembling the printer away from the heating resistor 2 is provided integrally with the support plate. FIG. 5B shows a state before the support plate 1 is incorporated into the printer. The support plate assembly members 8 are inserted into the support plate assembly pieces 7 respectively. The member 8 has a circular stopper 8 as shown in the figure.
a and a support plate assembling collar 8b which stands upright from the circular stopper portion 8a.
【０００５】次に、サーマルヘッドを実際にプリンタに
組み付ける一例を図４の側面図を参照しながら説明す
る。図４に示すように、プリンタ基台９の対向する側面
に設けられた一対の支持板組み付けカラー受け部１０の
中央の円形溝１０ａに支持板組み付けカラー８ｂを差し
込む。Next, an example of actually assembling a thermal head to a printer will be described with reference to a side view of FIG. As shown in FIG. 4, the support plate assembling collar 8b is inserted into the center circular groove 10a of the pair of support plate assembling collar receiving portions 10 provided on the opposite side surfaces of the printer base 9.
【０００６】この際、前記円形溝１０ａの溝入口１０ｂ
の幅は円形溝１０ａの直径よりも小さくできており、前
記支持板組み付けカラー８ｂの円柱外面をカットされた
扁平部８ｃ（図５Ｂ）を溝入口１０ｂに縦に挿入する。
そして、支持板１を円形溝１０ａを支点として回転させ
ることにより前記支持板組み付けカラー８ｂが円形溝１
０ａに嵌合して該溝から抜け出ることがなく、円形溝１
０ａを支点として回転可能に取り付けられる。At this time, the groove entrance 10b of the circular groove 10a
Is made smaller than the diameter of the circular groove 10a, and the flat portion 8c (FIG. 5B) obtained by cutting the cylindrical outer surface of the support plate assembling collar 8b is vertically inserted into the groove entrance 10b.
By rotating the support plate 1 about the circular groove 10a as a fulcrum, the support plate assembling collar 8b is rotated.
0a so as not to fall out of the groove,
It is rotatably mounted with 0a as a fulcrum.
【０００７】さらに、発熱抵抗体２に上部から接するよ
うにプラテンローラ１１が配置されており、該プラテン
ローラ１１と発熱抵抗体２との間に感熱紙１２を通しサ
ーマルヘッドを動作させて通電し感熱紙を発色させて印
字を行う。ここで、プラテンローラ１１を発熱抵抗体２
に所定の加圧力で押し付けることが必要で、支持板１と
プリンタ基台９との間にコイルばね、板ばね等の加圧ば
ね１３を設け、前記円形溝１０ａを支点として発熱抵抗
体２をプラテンローラ１１に押し付ける。Further, a platen roller 11 is arranged so as to be in contact with the heating resistor 2 from above, and a thermal head is operated between the platen roller 11 and the heating resistor 2 to operate the thermal head to energize. Printing is performed by coloring the thermal paper. Here, the platen roller 11 is connected to the heating resistor 2.
And a pressurizing spring 13 such as a coil spring or a leaf spring is provided between the support plate 1 and the printer base 9 and the heating resistor 2 is supported by the circular groove 10a as a fulcrum. Press against the platen roller 11.
【０００８】[0008]
【発明が解決しようとする課題】前記のように、サーマ
ルヘッドをプリンタ基台に組み付ける時、プリンタ基台
と支持板との間にプラテンローラ加圧用の加圧ばねを設
けたが、ばねの取り付けには、ばねの収縮の妨げになら
ず且つ脱落しないように取り付ける必要があるが、ばね
の取り付けはプリンタ基台のばね取り付け部の構造を複
雑にし、プリンタの小型化に繋がらない。As described above, when the thermal head is mounted on the printer base, a pressure spring for pressing the platen roller is provided between the printer base and the support plate. However, it is necessary to attach the spring so that it does not hinder the contraction of the spring and does not fall off. However, the attachment of the spring complicates the structure of the spring attaching portion of the printer base, and does not lead to the downsizing of the printer.
【０００９】本発明は、前記問題点に鑑み、ばねの構造
を簡素化してプリンタの小型化を妨げないサーマルヘッ
ドを提供する。SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a thermal head which simplifies the structure of a spring and does not hinder downsizing of a printer.
【００１０】[0010]
【課題を解決するための手段】本発明のサーマルヘッド
は、一方の面にサーマル基板が固定された支持板の他方
の面から該支持板の一部切込部を外側に向けて突出さ
せ、ばね作用を有する加圧手段を支持板と一体に形成す
る。According to the thermal head of the present invention, a part of the notch of the support plate is projected outward from the other surface of the support plate having the thermal substrate fixed to one surface thereof. A pressure means having a spring action is formed integrally with the support plate.
【００１１】[0011]
【発明の実施の形態】以下、図１及び図２を参照しなが
ら発明の実施の形態を説明する。ここで図１（Ａ）はサ
ーマルヘッドの側面図、図１（Ｂ）は図１（Ａ）の裏側
斜視図、図２は支持板をプリンタに組み付けた斜視図で
ある。また前記従来例と変わらない構成要素には同一符
号を付して説明する。図１（Ａ）に示すように、発熱抵
抗体２が形成されたヘッド基板３と外部との電気的接続
を行うコネクタ４が取り付けられた配線板５が支持板１
４に接着などで固定されている。また、前記ヘッド基板
３又は回路基板５上に、発熱抵抗体２を通電する駆動素
子（図示せず）が搭載されており、該駆動素子を含む近
傍が樹脂６で封止されている。以下の説明において、前
記支持板１４上に固定される前記ヘッド基板３や回路基
板５などの基板を総称してサーマル基板という。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1A is a side view of the thermal head, FIG. 1B is a rear perspective view of FIG. 1A, and FIG. 2 is a perspective view in which a support plate is assembled to a printer. The same components as those in the conventional example will be described with the same reference numerals. As shown in FIG. 1A, a wiring board 5 on which a connector 4 for making an electrical connection between a head substrate 3 on which a heating resistor 2 is formed and the outside is mounted is a support plate 1.
4 is fixed by bonding or the like. A drive element (not shown) for energizing the heating resistor 2 is mounted on the head substrate 3 or the circuit board 5, and the vicinity including the drive element is sealed with a resin 6. In the following description, substrates such as the head substrate 3 and the circuit substrate 5 fixed on the support plate 14 are collectively referred to as a thermal substrate.
【００１２】ここで薄い板厚の支持板を用いる場合に
は、図１（Ｂ）に示すように、支持板１４の発熱抵抗体
列と同一方向の支持板両側辺に発熱抵抗体２から離して
プリンタの組み付けを行うための支持板組付片７を支持
板１４と一体に設ける。さらに、支持板１４のヘッド基
板３を固定した面と反対の面、つまり裏面に、支持板１
４を切り込み、曲げ加工にて成形して外側に傾斜して突
出したばね作用を有する加圧手段１５、１５を少なくと
も対称に２か所形成する。これら加圧手段１５、１５に
は、その先端から内側に向けて所定長さの平坦面１５ａ
が形成されている。In the case where a thin supporting plate is used, as shown in FIG. 1B, the supporting plate 14 is separated from the heating resistor 2 on both sides of the supporting plate in the same direction as the row of the heating resistor. The support plate mounting piece 7 for mounting the printer is provided integrally with the support plate 14. Further, the support plate 1 is provided on the surface of the support plate 14 opposite to the surface on which the head substrate 3 is fixed, that is, on the back surface.
4 are cut and formed by bending to form at least two symmetrically pressurizing means 15 and 15 having a spring action projecting outwardly. Each of these pressurizing means 15, 15 has a flat surface 15a of a predetermined length inward from the tip thereof.
Are formed.
【００１３】以下、前記加圧手段１５が形成された支持
板１４をプリンタに組み付ける例を図２を参照しながら
説明する。図２に示すように、プリンタ基台９と連結さ
れた支持板組み付けカラー受け部１０の中央に形成され
た円形溝１０ａに支持板組み付けカラー８を差し込む。
前記円形溝１０ａの溝入口１０ｂは円形溝１０ａの直径
よりも小さくできており、前記支持板組み付けカラー８
の円柱外面をカットされた扁平部８ａを溝入口１０ｂに
縦に挿入する。そして、支持板１４を円形溝１０ａを支
点として回転させることによりカラー８が円形溝１０ａ
に嵌合して抜け出ることがなく、円形溝１０ａを支点と
して回転可能に取り付けられる。Hereinafter, an example of assembling the support plate 14 on which the pressing means 15 is formed to a printer will be described with reference to FIG. As shown in FIG. 2, the support plate assembling collar 8 is inserted into a circular groove 10a formed at the center of the support plate assembling collar receiving portion 10 connected to the printer base 9.
The groove entrance 10b of the circular groove 10a is made smaller than the diameter of the circular groove 10a, and the support plate assembling collar 8 is formed.
Is inserted vertically into the groove entrance 10b. The collar 8 is rotated by rotating the support plate 14 around the circular groove 10a.
And is rotatably mounted around the circular groove 10a as a fulcrum.
【００１４】さらに、発熱抵抗体２に上部から接するよ
うにプラテンローラ１１が配置されており、該プラテン
ローラ１１と発熱抵抗体２との間に感熱紙１２を通しサ
ーマルヘッドを動作させて通電し感熱紙を発色させて印
字を行う。ここで、プラテンローラ１１を発熱抵抗体２
に所定の加圧力で押し付けることが必要である。Further, a platen roller 11 is disposed so as to be in contact with the heating resistor 2 from above. Printing is performed by coloring the thermal paper. Here, the platen roller 11 is connected to the heating resistor 2.
Must be pressed with a predetermined pressure.
【００１５】ここで、前記支持板１４をプリンタ基台９
に組み付ける際、前記加圧手段１５の先端又は平坦面１
５ａがプリンタ基台９の面に接するように組み付ける。
このように組み付けた後、プラテンローラ１１を所定の
位置に固定すると、プラテンローラ１１によって支持板
１４が下方に押し込まれる。これによって前記加圧手段
１５がプリンタ基台９と支持板１４との間で押し潰さ
れ、この押し潰された反発力で、支持板１４をプラテン
ローラ１１側に押し付ける力を発する。このようにして
前記加圧手段１５はバネ作用を発揮する。Here, the support plate 14 is attached to the printer base 9.
At the time of assembling, the tip of the pressing means 15 or the flat surface 1
5a is attached so as to be in contact with the surface of the printer base 9.
After assembling in this manner, when the platen roller 11 is fixed at a predetermined position, the support plate 14 is pushed downward by the platen roller 11. As a result, the pressing means 15 is crushed between the printer base 9 and the support plate 14, and the crushed repulsive force generates a force for pressing the support plate 14 against the platen roller 11. Thus, the pressing means 15 exerts a spring action.
【００１６】前記支持板１４の材質としてステンレス、
リン青銅などが好適で、その弾性係数は縦弾性係数が
１．０×１０4 ｋｇ／ｍｍ、または横弾性係数が３．０
×１０3 ｋｇ／ｍｍ以上の材質が適している。また、前
記加圧手段１５の支持板１４の表面からの突き出し量、
突き出し面積、突出片の数、突出片のプリンタ基台への
接する箇所などを任意に選択することによって、プラテ
ンローラ１１への加圧力を選定することができる。The support plate 14 is made of stainless steel,
Phosphor bronze or the like is preferable, and its elastic modulus is 1.0 × 10 4 kg / mm in longitudinal elastic modulus or 3.0 in lateral elastic modulus.
A material of × 10 3 kg / mm or more is suitable. Also, the amount of the pressing means 15 protruding from the surface of the support plate 14,
The pressing force on the platen roller 11 can be selected by arbitrarily selecting the protruding area, the number of protruding pieces, the location of the protruding pieces in contact with the printer base, and the like.
【００１７】また、使用する支持板に弾性係数の大きい
材質を選べば、加圧手段の撓み量が小さくても大きな加
圧力を得ることができ、サーマルヘッドの総厚みを薄く
することができ、プリンタの小型化を図れる。If a material having a large elastic coefficient is selected for the support plate to be used, a large pressing force can be obtained even if the amount of bending of the pressing means is small, and the total thickness of the thermal head can be reduced. The size of the printer can be reduced.
【００１８】前記実施の形態では、前記加圧手段を支持
板のヘッド基板固定面の下側に形成したが、これに代え
て、支持板をヘッド基板よりも発熱抵抗体列と同方向に
延長し、この延長した支持板の両側に加圧手段を形成し
ても同様のばね作用を得ることができる。また、プリン
タ基台への組み付け構造として、前記実施例の他、支持
板及びプリンタ基台の対向する側面にビス穴を有する組
み付け片を直立してそれぞれ形成し、ビスで回転可能に
連結しても良い。また、前記実施の形態ではサーマル基
板としてヘッド基板と回路基板が分離された構造のもの
を用いたが、サーマル基板としてヘッド基板に直接外部
接続用コネクタを取り付けた構造のものを用いても本発
明の効果は変わらない。In the above-described embodiment, the pressing means is formed below the head substrate fixing surface of the support plate. Alternatively, the support plate may extend from the head substrate in the same direction as the row of heating resistors. However, the same spring action can be obtained even if pressing means is formed on both sides of the extended support plate. In addition, as an assembling structure to the printer base, in addition to the above-described embodiment, assembling pieces having screw holes on the support plate and the opposing side surfaces of the printer base are formed upright, and connected rotatably with screws. Is also good. Further, in the above-described embodiment, a thermal substrate having a structure in which a head substrate and a circuit substrate are separated from each other is used. However, a thermal substrate having a structure in which an external connector is directly attached to the head substrate may be used. The effect of does not change.
【００１９】[0019]
【発明の効果】本発明のサーマルヘッドは、サーマル基
板を固定する支持板と一体のばね作用を有する加圧手段
を形成したから、支持板とばねが一体となっており、ば
ねが接する面をプリンタ基台などに確保するのみで良
く、このためサーマルヘッドが組み込まれるプリンタな
どの構造の簡素化が図られる。また、ばね取り付け作業
もなくなり、組み立て作業の効率化を図れる。According to the thermal head of the present invention, since the pressurizing means having a spring action integral with the support plate for fixing the thermal substrate is formed, the support plate and the spring are integrated, and the surface with which the spring comes into contact is formed. It is only necessary to secure the thermal head on a printer base or the like, so that the structure of a printer in which a thermal head is incorporated is simplified. In addition, there is no need for a spring mounting operation, and the efficiency of the assembly operation can be increased.
【図１】本発明のサーマルヘッドの実施の形態の断面図
及び支持板の斜視図である。FIG. 1 is a sectional view of a thermal head according to an embodiment of the present invention and a perspective view of a support plate.
【図２】本発明のサーマルヘッドをプリンタに組み込ん
だ断面図である。FIG. 2 is a sectional view in which the thermal head of the present invention is incorporated in a printer.
【図３】従来のサーマルヘッドの断面図である。FIG. 3 is a cross-sectional view of a conventional thermal head.
【図４】従来のサーマルヘッドをプリンタに組み込んだ
断面図である。FIG. 4 is a sectional view in which a conventional thermal head is incorporated in a printer.
【図５】従来のサーマルヘッドの支持板の斜視図であ
る。FIG. 5 is a perspective view of a support plate of a conventional thermal head.
１４・・支持板 １５・・支持板と一体に形成されたば
ね作用を有する加圧手段14. Support plate 15 Pressing means having spring action integrally formed with support plate
Claims (5)
持板の他方の面から該支持板の一部切込部を外側に向け
て突出させ、ばね作用を有する加圧手段を支持板と一体
に形成したことを特徴とするサーマルヘッド。1. A support plate having a thermal substrate fixed to one surface thereof, a part of the support plate having a cut portion protruding outward from the other surface, and a pressing means having a spring action is provided between the support plate and the support plate. A thermal head characterized by being integrally formed.
部を一体に形成したことを特徴とする請求項１のサーマ
ルヘッド。2. The thermal head according to claim 1, wherein a support plate assembling portion is integrally formed on opposite side surfaces of the support plate.
０4 ｋｇ／ｍｍ、または横弾性係数が３．０×１０3 ｋ
ｇ／ｍｍ以上の材質から成ることを特徴とする請求項１
又は２のサーマルヘッド。3. The support plate has a longitudinal elastic modulus of 1.0 × 1.
0 4 kg / mm or transverse elasticity coefficient of 3.0 × 10 3 k,
2. A material made of a material of g / mm or more.
Or 2 thermal head.
持板の他方の面から該支持板の一部を外側に向けて突出
させ、ばね作用を有する加圧手段を支持板と一体に形成
して成るサーマルヘッドの作製方法において、 前記支持板の一部に切込部を形成し、該切込部を曲げ加
工にて成形して、ばね作用を有する加圧手段を形成する
ことを特徴とするサーマルヘッドの作製方法。4. A supporting plate having a thermal substrate fixed to one surface thereof, a portion of the supporting plate protruding outward from the other surface, and a pressing means having a spring action is formed integrally with the supporting plate. In the method for manufacturing a thermal head, a notch is formed in a part of the support plate, and the notch is formed by bending to form a pressing means having a spring action. Method for manufacturing a thermal head.
持板の他方の面から該支持板の一部切込部を外側に向け
て突出させ、ばね作用を有する加圧手段と前記支持板の
対向する側面に支持板組付部をそれぞれ一体に形成て成
るサーマルヘッドと、 前記支持板組付部と回転可能に取り付けられる支持板組
付部材を有し、プラテンローラの装着によって前記ばね
作用を有する加圧手段がその一面に接するプリンタ基台
とを備えることを特徴とするプリンタ。5. A pressurizing means having a spring action, wherein a notch portion of the support plate is projected outward from the other surface of the support plate having a thermal substrate fixed to one surface thereof, and the support plate. And a support plate assembling member rotatably attached to the support plate assembling portion, wherein the thermal head comprises a support plate assembling portion integrally formed on opposite side surfaces of the platen roller. And a printer base in which the pressurizing means having a surface is in contact with one surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25343098A JP3242886B2 (en) | 1998-09-08 | 1998-09-08 | Thermal head, method of manufacturing thermal head, and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25343098A JP3242886B2 (en) | 1998-09-08 | 1998-09-08 | Thermal head, method of manufacturing thermal head, and printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000085168A true JP2000085168A (en) | 2000-03-28 |
| JP3242886B2 JP3242886B2 (en) | 2001-12-25 |
Family
ID=17251298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25343098A Expired - Fee Related JP3242886B2 (en) | 1998-09-08 | 1998-09-08 | Thermal head, method of manufacturing thermal head, and printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3242886B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179433A2 (en) * | 2000-08-08 | 2002-02-13 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
| CN100339224C (en) * | 2003-09-26 | 2007-09-26 | 山东新北洋信息技术股份有限公司 | Printer |
-
1998
- 1998-09-08 JP JP25343098A patent/JP3242886B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179433A2 (en) * | 2000-08-08 | 2002-02-13 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
| EP1179433A3 (en) * | 2000-08-08 | 2002-04-17 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
| US6682239B2 (en) | 2000-08-08 | 2004-01-27 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
| CN100339224C (en) * | 2003-09-26 | 2007-09-26 | 山东新北洋信息技术股份有限公司 | Printer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3242886B2 (en) | 2001-12-25 |
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