JPH079639Y2 - Thermal head - Google Patents

Thermal head

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Publication number
JPH079639Y2
JPH079639Y2 JP2878589U JP2878589U JPH079639Y2 JP H079639 Y2 JPH079639 Y2 JP H079639Y2 JP 2878589 U JP2878589 U JP 2878589U JP 2878589 U JP2878589 U JP 2878589U JP H079639 Y2 JPH079639 Y2 JP H079639Y2
Authority
JP
Japan
Prior art keywords
head
substrates
supporting plate
metal supporting
thermal
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
JP2878589U
Other languages
Japanese (ja)
Other versions
JPH02121244U (en
Inventor
繁範 太田
健治 中井
善男 下赤
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.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP2878589U priority Critical patent/JPH079639Y2/en
Publication of JPH02121244U publication Critical patent/JPH02121244U/ja
Application granted granted Critical
Publication of JPH079639Y2 publication Critical patent/JPH079639Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は発熱抵抗体にパネル状の電流を流したときに発
生するジュール熱によって感熱記録紙に発色記録を行な
わせる、所謂、サーマルプリント方式を実行させるため
のサーマルヘッドに関し、より詳細には発色記録の領域
を大とした大型のサーマルヘッドの改良に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a so-called thermal printing method for performing color recording on thermosensitive recording paper by Joule heat generated when a panel-shaped current is applied to a heating resistor. The present invention relates to a thermal head for carrying out the above, and more specifically to an improvement of a large thermal head having a large color recording area.

（従来の技術） 従来、発色記録の領域が大の大型サーマルヘッドは第３
図及び第４図に示すようにアルミニウム等の金属材料か
ら成る金属支持板11上に、酸化アルミニウム（Al2O3）
等のセラミックから成り、その上面に数百乃至数千個の
窒化タンタル（Ta2N）等から成る発熱抵抗体13を配列被
着させた２枚の長尺状ヘッド基板12a,12bを接着剤14を
介して接着固定した構造を有しており、発熱抵抗体13に
外部入力信号に対応させて電力を印加し、各発熱抵抗体
13に選択的にジュール発熱を起こさせることによってサ
ーマルヘッドとして機能する。(Prior Art) Conventionally, a large thermal head with a large color recording area is the third
As shown in FIGS. 4 and 5, aluminum oxide (Al 2 O 3 ) is formed on the metal support plate 11 made of a metal material such as aluminum.
Made of ceramics, etc., and two long head substrates 12a, 12b, on which the heating resistors 13 made of hundreds to thousands of tantalum nitride (Ta 2 N) are arranged and adhered, It has a structure in which it is adhered and fixed via 14, and heat is applied to the heating resistors 13 in accordance with an external input signal.
It functions as a thermal head by selectively causing Joule heating in 13.

尚、この印字領域が大の大型サーマルヘッドは印字幅が
約600mm程度あり、１枚のヘッド基板上に幅、約600mmに
わたって発熱抵抗体を均一に配列被着させるには無理が
あることから、通常は幅、約300mmにわたって発熱抵抗
体を均一に配列被着させたヘッド基板を２枚、その短辺
側を当接させ、直線状に配置することによって代用して
いる。In addition, since the large thermal head with a large printing area has a printing width of about 600 mm, it is not possible to uniformly arrange and apply the heating resistors over the width of about 600 mm on one head substrate. Normally, two head substrates, on which heating resistors are uniformly arranged and deposited over a width of about 300 mm, are arranged in a straight line by abutting the short sides of the two head substrates.

また、図中、15a,15bはアルミニウム（AL）等の金属か
らなるリード電極、16は駆動用IC素子であり、リード電
極15a,15bは発熱抵抗体13にジュール発熱を起こさせる
ための電力を供給し、駆動用IC素子16は各発熱抵抗体13
への電力印加の制御を行う作用をなす。In the figure, 15a and 15b are lead electrodes made of a metal such as aluminum (AL), 16 is a driving IC element, and the lead electrodes 15a and 15b generate electric power for causing the heating resistor 13 to generate Joule heat. The driving IC element 16 supplies each heating resistor 13
It acts to control the application of electric power to the.

（考案が解決しようとする課題） しかし乍ら、この従来のサーマルヘッドにおいては金属
支持板11上に２枚のヘッド基板12a,12bがその下面全面
を接着剤14で接着することにより固定されていること及
び金属支持板11とヘッド基板12a,12bはその使用材質が
異なり、両者の熱膨張係数に大きな相違を有しているこ
と等から以下に述べる欠点を有する。(Problems to be solved by the invention) However, in this conventional thermal head, two head substrates 12a and 12b are fixed on the metal supporting plate 11 by adhering the entire lower surfaces thereof with an adhesive 14. Since the metal supporting plate 11 and the head substrates 12a and 12b are made of different materials and have large thermal expansion coefficients, they have the following drawbacks.

即ち、金属支持板11は、例えばアルミニウム（Al）から
成り、熱膨張係数が2.3×10-5／℃であるのに対し、ヘ
ッド基板12a,12bはアルミナ（Al2O3）から成り、熱膨張
係数は7.0〜8.0×10-5／℃である。そのためこのサーマ
ルヘッドを作動させた際、金属支持板11とヘッド基板12
a,12bに発熱抵抗体13の発する熱が印加されると金属支
持板11はヘッド基板12a,12bより大きく膨張し、該両者
の熱膨張量の相違に起因した応力によって各々のヘッド
基板12a,12bに湾曲を発生させてしまい、その結果、ヘ
ッド基板12a,12bの上面に被着させた発熱抵抗体13の発
する熱が感熱記録紙に良好、且つ均等に伝達されなくな
り、印字不良を発生するという欠点を有する。That is, the metal support plate 11 is made of, for example, aluminum (Al) and has a coefficient of thermal expansion of 2.3 × 10 −5 / ° C., while the head substrates 12a and 12b are made of alumina (Al 2 O 3 ) and The expansion coefficient is 7.0 to 8.0 × 10 -5 / ° C. Therefore, when operating this thermal head, the metal support plate 11 and the head substrate 12
When the heat generated by the heating resistor 13 is applied to a and 12b, the metal support plate 11 expands more than the head substrates 12a and 12b, and the respective head substrates 12a and 12a due to the stress caused by the difference in the thermal expansion amount between the two. 12b is curved, and as a result, the heat generated by the heating resistor 13 applied to the upper surfaces of the head substrates 12a and 12b is not transferred to the thermal recording paper in a good and even manner, resulting in defective printing. It has the drawback.

また印字時、金属支持板11が大きく膨張すると該金属支
持板11上面に固定されている２枚のヘッド基板12a,12b
は互いに分かれる方向に移動し、２枚のヘッド基板12a,
12bの当接部には溝が形成されてしまい、その結果、印
字の中央部に白すじを発生し、印字品質が大きく低下す
るという欠点も有していた。Further, during printing, when the metal supporting plate 11 is largely expanded, the two head substrates 12a and 12b fixed to the upper surface of the metal supporting plate 11 are fixed.
Move in the direction in which they are separated from each other, and the two head substrates 12a,
A groove is formed in the contact portion of 12b, and as a result, white lines are generated in the central portion of the print, and the print quality is greatly deteriorated.

（考案の目的） 本考案は上記欠点に鑑み案出されたもので、その目的は
印字時にヘッド基板に湾曲が発生したり、２枚のヘッド
基板の当接部に溝が形成されたりするのを皆無となし、
ヘッド基板上面に被着させた発熱抵抗体の発する熱を感
熱記録紙に良好、かつ均等に伝達させ印字品品質が極め
て優れたサーマルヘッドを提供することにある。(Object of the Invention) The present invention has been devised in view of the above-mentioned drawbacks, and an object thereof is to prevent a head substrate from being curved during printing or to form a groove in an abutting portion of two head substrates. Nothing,
It is an object of the present invention to provide a thermal head in which the heat generated by a heating resistor adhered to the upper surface of the head substrate is satisfactorily and evenly transferred to a thermal recording paper, and the quality of printed products is extremely excellent.

（課題を解決するための手段） 本考案は金属支持板上に、上面に多数の発熱抵抗体が配
列被着されてなる長尺状のヘッド基板を２枚、その短辺
側を当接させて直線状に配置してなるサーマルヘッドに
おいて、前記２枚のヘッド基板を両ヘッド基板の当接部
上面及び側面に被着させた接着剤で接合し、且つ両ヘッ
ド基板と金属支持板とを前記当接部側面に被着させた接
着剤で接合することを特徴とするものである。(Means for Solving the Problems) In the present invention, two long head substrates each having a large number of heating resistors arranged and attached on the upper surface of a metal supporting plate are contacted with their short sides. In a linearly arranged thermal head, the two head substrates are joined by an adhesive applied to the upper and side surfaces of the contact portions of both head substrates, and both head substrates and the metal supporting plate are joined together. It is characterized in that it is joined by an adhesive applied to the side surface of the contact portion.

（実施例） 次に本考案を第１図乃至第３図に示す実施例に基づき詳
細に説明する。(Embodiment) Next, the present invention will be described in detail based on an embodiment shown in FIGS.

第１図及び第２図はは本考案のサーマルヘッドの一実施
例を示し、１は金属支持板、2a,2bはヘッド基板、３は
ヘッドカバーである。1 and 2 show an embodiment of the thermal head of the present invention, in which 1 is a metal supporting plate, 2a and 2b are head substrates, and 3 is a head cover.

前記金属支持板１はアルミニウム等の金属材料から成
り、その上面に２枚の長尺状ヘッド基板2a,2bがその短
辺側を当接させ、直線状に配置して固定される。この金
属支持板１は上面に固定されるヘッド基板2a,2bの機械
的強度を補強するとともにヘッド基板2a,2bの上面に設
けられた発熱抵抗体４が発する熱を吸収し、外部に放出
することによってヘッド基板2a,2bが高温とならないよ
うに作用する。The metal support plate 1 is made of a metal material such as aluminum, and two long head substrates 2a and 2b are fixed to the upper surface of the metal support plate 1 with their short sides in contact with each other. The metal supporting plate 1 reinforces the mechanical strength of the head substrates 2a and 2b fixed to the upper surface, and also absorbs the heat generated by the heating resistor 4 provided on the upper surfaces of the head substrates 2a and 2b and releases it to the outside. As a result, the head substrates 2a and 2b act so as not to reach a high temperature.

また前記金属支持板１上に固定されるヘッド基板2a,2b
は長尺状を成し、その上面で長辺側辺と平行に後述する
多数の発熱抵抗体４が直線状に配列被着されている。Also, head substrates 2a, 2b fixed on the metal supporting plate 1
Has a long shape, and a large number of heating resistors 4 to be described later are linearly arranged and deposited on the upper surface thereof in parallel with the long side.

前記ヘッド基板2a,2bは、酸化アルミニウム（Al2O3）等
のセラミックから成り、例えば酸化アルミニウム（Al2O
3）の粉末に適当な有機溶剤、溶媒を添加混合して泥漿
状となすとともにこれをドクターブレード法を採用する
ことによってグリーンシート（生セラミックシート）を
形成し、しかる後、高温で焼成することによって製作さ
れる。The head substrate 2a, 2b is made of a ceramic such as aluminum oxide (Al 2 O 3), for example, aluminum oxide (Al 2 O
Appropriate organic solvent and solvent are added to the powder of 3 ) and mixed to form a slurry, and a green sheet (green ceramic sheet) is formed by adopting the doctor blade method, and then fired at a high temperature. Produced by.

前記ヘッド基板2a,2bは各々の上面に多数の発熱抵抗体
４が直線状に配列被着されており、該発熱抵抗体４は窒
化タンタル（Ta2N）、ニクロム（Ni-Cr）、酸化ルテニ
ウム（RuO2）等から成り、従来周知の蒸着、スパッタリ
ングあるいはスクリーン印刷等の薄膜、厚膜手法及びエ
ッチング加工法によりヘッド基板2a,2b上に直線状に、
且つ一定間隔毎に被着形成される。この発熱抵抗体４は
感熱記録紙に発色による印字、印画を行わせる作用を為
し、所定の電力が印加されると感熱記録紙等を発色させ
るに必要な温度、例えば400℃の温度にジュール発熱す
る。A large number of heating resistors 4 are linearly arranged and deposited on the upper surfaces of the head substrates 2a and 2b. The heating resistors 4 are made of tantalum nitride (Ta 2 N), nichrome (Ni-Cr), or oxidized. It is made of ruthenium (RuO 2 ) etc., and linearly formed on the head substrates 2a, 2b by a conventionally known thin film such as vapor deposition, sputtering or screen printing, a thick film method and an etching processing method.
Further, it is deposited and formed at regular intervals. The heating resistor 4 has a function of printing and printing by coloring on the thermosensitive recording paper, and when a predetermined electric power is applied, the temperature of the thermosensitive recording paper or the like is 400 ° C. Fever.

また、前記発熱抵抗体４はその一端が個別リード電極５
の一端に、また他端が共通リード電極６の各々に接続さ
れており、該個別リード電極５及び共通リード電極６は
発熱抵抗体４にジュール発熱を起こさせるための電力を
印加する作用を為す。In addition, one end of the heating resistor 4 has an individual lead electrode 5
Is connected to one end of the common lead electrode 6 and the other end thereof is connected to each of the common lead electrodes 6. The individual lead electrode 5 and the common lead electrode 6 serve to apply electric power to cause Joule heat generation to the heating resistor 4. .

前記個別リード電極５及び共通リード電極６はアルミニ
ウム（Al）、金（Au）等の金属から成り、従来周知の蒸
着法により個別リード電極５は一個の発熱抵抗体４につ
いて一個づつ、また共通リード電極６はすべての発熱抵
抗体４が共通に接続されるようにしてヘッド基板2a,2b
上に被着形成される。The individual lead electrodes 5 and the common lead electrodes 6 are made of a metal such as aluminum (Al) or gold (Au), and the individual lead electrodes 5 are formed one by one for each heating resistor 4 by the well-known vapor deposition method. The electrodes 6 are arranged so that all the heating resistors 4 are commonly connected, and the head substrates 2a and 2b are connected.
Deposited on top.

また、前記一端が発熱抵抗体４と接続している各個別リ
ード電極５の他端はそれぞれヘッド基板2a,2b上に取着
されている駆動用IC素子７に接続されている。The other end of each individual lead electrode 5 whose one end is connected to the heating resistor 4 is connected to the driving IC element 7 mounted on the head substrates 2a and 2b, respectively.

前記個別リード電極５に接続している駆動用IC素子７は
発熱抵抗体４に印加される電力のオン・オフ制御を行
い、発熱抵抗体４に選択的にジュール発熱を起こさせる
作用を為す。The driving IC element 7 connected to the individual lead electrode 5 controls ON / OFF of the electric power applied to the heating resistor 4 and selectively causes the heating resistor 4 to generate Joule heat.

また前記金属支持板１上に配置された２枚のヘッド基板
2a,2bはその当接部Ａ上面に接着剤８が被着されてお
り、また両ヘッド基板2a,2bの当接部Ａ側面に接着剤９
が被着されている。Further, two head substrates arranged on the metal supporting plate 1.
An adhesive 8 is applied to the upper surfaces of the contact portions A of the 2a and 2b, and an adhesive 9 is applied to the side surfaces of the contact portions A of both head substrates 2a and 2b.
Is being worn.

前記接着剤９はヘッド基板2aとヘッド基板2bを強固に接
合させる作用を為し、サーマルヘッドを作動させた際、
金属支持板１の大きな熱膨張に対応してヘッド基板2aと
ヘッド基板2bとが分かれる方向に移動しようとしてもそ
の移動を阻止し、両ヘッド基板2a,2b間に白ずじの原因
となる溝が形成されるのを有効に防止する。The adhesive 9 acts to firmly bond the head substrate 2a and the head substrate 2b, and when the thermal head is operated,
Even if the head substrate 2a and the head substrate 2b try to move in a direction in which the head substrate 2a and the head substrate 2b are separated in response to the large thermal expansion of the metal supporting plate 1, the movement is blocked, and a groove that causes white lines between both head substrates 2a and 2b. Effectively prevents the formation of

また前記接着剤９はヘッド基板2aとヘッド基板2bを接合
させるとともに２枚のヘッド基板2a,2bを金属支持板１
上に強固に接合させる作用を為し、各ヘッド基板2a,2b
はその各々の一端側のみが接着剤９により金属支持板１
上に接合されること及びその接合面積が狭いことから、
サーマルヘッドを作動させた際、金属支持板１がヘッド
基板2a,2bに比し、大きく膨張したとしてもヘッド基板2
a,2bと金属支持板１との間には熱膨張量の相違に起因す
る応力は殆ど発生せず、その結果、ヘッド基板2a,2bに
湾曲を形成させることなく常に平坦となすことができ
る。Further, the adhesive 9 bonds the head substrate 2a and the head substrate 2b together, and connects the two head substrates 2a and 2b to the metal supporting plate 1.
Each head substrate 2a, 2b has a function of firmly bonding to the top.
The metal support plate 1 is provided with the adhesive 9 only on one end side of each of them.
Since it is bonded on top and its bonding area is small,
When the thermal head is operated, even if the metal supporting plate 1 expands greatly compared to the head substrates 2a and 2b, the head substrate 2
Almost no stress is generated between the a and 2b and the metal supporting plate 1 due to the difference in the thermal expansion amount, and as a result, the head substrates 2a and 2b can always be flat without being curved. .

尚、前記接着剤８はその硬化後の剪断接着強度が100kg/
cm2以下であると、サーマルヘッドを作動させた際、金
属支持板１の大きな熱膨張に対応してヘッド基板2aとヘ
ッド基板2bとが分かれる方向に移動しようとした時に、
接着剤8aに剥がれや伸びを生じて両ヘッド基板2a,2b間
に白すじの原因となる溝が形成されてしまう恐れがある
ことから接着剤８の剪断接着強度は100kg/cm2以上とし
ておくことが望ましい。The adhesive 8 has a shear adhesive strength of 100 kg /
When the thermal head is operated to be cm 2 or less, when the head substrate 2a and the head substrate 2b try to move in a direction separating from each other in response to the large thermal expansion of the metal supporting plate 1,
The shearing adhesive strength of the adhesive 8 is set to 100 kg / cm 2 or more because the adhesive 8a may peel off or stretch and a groove causing white streaks may be formed between the head substrates 2a and 2b. Is desirable.

また前記接着剤９はその硬化後の剪断接着強度が100kg/
cm2以下のものであると、サーマルヘッドを作動させた
際、金属支持板１とヘッド基板2a,2bの熱膨張量の相違
に伴う応力によって剥がれを発生し、金属支持板１上に
ヘッド基板2a,2bを強固に接合することができなくなる
ことから接着剤９はその剪断接着強度を100kg/cm2以上
としておくことが望ましい。Further, the adhesive 9 has a shear adhesive strength of 100 kg /
When it is less than cm 2 , when the thermal head is operated, peeling occurs due to stress caused by the difference in thermal expansion amount between the metal supporting plate 1 and the head substrates 2a and 2b, and the head substrate is placed on the metal supporting plate 1. It is desirable that the adhesive 9 has a shear adhesive strength of 100 kg / cm 2 or more because it becomes impossible to firmly bond the 2a and 2b.

前記金属支持板１上に配置されたヘッド基板2a,2b上に
はその上面に更にヘッドカバー３が配されており、該ヘ
ッドカバー３はヘッド基板2a,2bを外力印加より保護す
るとともに感熱記録紙Ｂの案内板として作用する。A head cover 3 is further provided on the upper surface of the head substrates 2a, 2b arranged on the metal supporting plate 1, and the head cover 3 protects the head substrates 2a, 2b from the application of external force and the thermal recording paper B. Acts as a guide plate for.

前記ヘッドカバー３は、例えばアルミニウム等の金属よ
り成り、ネジ10を介して金属支持板１に固定される。The head cover 3 is made of metal such as aluminum, and is fixed to the metal supporting plate 1 with screws 10.

かくしてヘッド基板2a,2b上に配列被着された多数の発
熱抵抗体４に印加される電力を駆動用IC素子７により制
御し、発熱抵抗体４を選択的にジュール発熱させるとと
もに発熱抵抗体４上に感熱記録紙Ｂを順次移動させるこ
とによって感熱記録紙Ｂに印字、印画を行うことが可能
となる。Thus, the driving IC element 7 controls the electric power applied to the large number of heating resistors 4 arranged and deposited on the head substrates 2a and 2b to selectively cause the heating resistors 4 to generate Joule heat and to generate the heating resistors 4 It is possible to print and print on the thermal recording paper B by sequentially moving the thermal recording paper B upward.

（考案の効果） 本考案のサーマルヘッドによれば、金属支持板上に、上
面に多数の発熱抵抗体を有する長尺状のヘッド基板を２
枚、その短辺側を当接させて直線状に配置するとともに
ヘッド基板とヘッド基板の接合を両ヘッド基板の当接部
上面及び側面に被着させた接着剤で、両ヘッド基板と金
属支持板との接合を両ヘッド基板の当接部側面に被着さ
せた接着剤で行うようにしたことからサーマルヘッドを
作動させた際、金属支持板がヘッド基板に比し大きく膨
張したとしても該金属支持板上に固定されている２枚の
ヘッド基板はその当接部に溝が形成されることは一切な
く、印字に白すじ等の発生を皆無として極めて印字品質
の優れたものとなすことができる。(Effect of the Invention) According to the thermal head of the present invention, a long head substrate having a large number of heating resistors on its upper surface is provided on a metal supporting plate.
The head substrate and the head substrate are arranged in a straight line with their short sides in contact with each other, and the head substrate and the head substrate are bonded to each other by an adhesive applied to the upper surface and the side surface of the contact portion of both head substrates. Since the bonding with the plate is performed by the adhesive applied to the side surfaces of the contact portions of both head substrates, even if the metal supporting plate expands greatly compared to the head substrate when the thermal head is operated, The two head substrates fixed on the metal support plate have no groove at the abutting part, and there are no white lines in the printing, and the printing quality is extremely excellent. You can

また同時に金属支持板とヘッド基板間に発生する応力を
極小として、ヘッド基板が湾曲するのを皆無となし、そ
の結果、ヘッド基板を常に平坦としてヘッド基板上面に
被着されている各発熱抵抗体の発する熱を感熱記録紙に
良好、且つ均等に伝達するのを可能となし、これによっ
ても印字品質が極めて優れたものとなる。At the same time, the stress generated between the metal supporting plate and the head substrate is minimized so that the head substrate is never curved, and as a result, the heating resistors are attached to the upper surface of the head substrate with the head substrate always flat. It is possible to satisfactorily and evenly transfer the heat generated by the heat-sensitive recording paper to the heat-sensitive recording paper, which also makes the printing quality extremely excellent.

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

第１図は本考案のサーマルヘッドの一実施例を示す断面
図、第２図は第１図に示すサーマルヘッドの金属支持板
上にヘッド基板を配置固定した状態を説明するための斜
視図、第３図は従来のサーマルヘッドにおける金属支持
板上にヘッド基板を固定した状態を説明するための平面
図、第４図は第３図のＸ−Ｘ線断面図である。 １……金属支持板、2a,2b……ヘッド基板 ３……ヘッドカバー、４……発熱抵抗体 8,9……接着剤 Ａ……２枚のヘッド基板の当接部FIG. 1 is a sectional view showing an embodiment of the thermal head of the present invention, and FIG. 2 is a perspective view for explaining a state in which a head substrate is arranged and fixed on a metal supporting plate of the thermal head shown in FIG. 3 is a plan view for explaining a state in which a head substrate is fixed on a metal supporting plate in a conventional thermal head, and FIG. 4 is a sectional view taken along line XX of FIG. 1 ... Metal support plate, 2a, 2b ... Head substrate 3 ... Head cover, 4 ... Heating resistor 8,9 ... Adhesive A ... Abutting part of two head substrates

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−225970（ＪＰ，Ａ) 実開 昭57−132544（ＪＰ，Ｕ) 実開 昭57−169543（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-225970 (JP, A) Actual opening 57-132544 (JP, U) Actual opening 57-169543 (JP, U)

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】金属支持板上に、上面に多数の発熱抵抗体
が配列被着されてなる長尺状のヘッド基板を２枚、その
短辺側を当接させて直線状に配置してなるサーマルヘッ
ドにおいて、前記２枚のヘッド基板を両ヘッド基板の当
接部上面及び側面に被着させた接着剤で接合し、且つ両
ヘッド基板と金属支持板とを前記当接部側面に被着させ
た接着剤で接合することを特徴とするサーマルヘッド。1. An elongated head substrate having a large number of heating resistors arranged and adhered on an upper surface of a metal supporting plate, the short sides of which are arranged in contact with each other in a straight line. In this thermal head, the two head substrates are joined to each other by the adhesive applied to the upper and side surfaces of the contact portions of both head substrates, and both head substrates and the metal supporting plate are covered on the side surfaces of the contact portions. A thermal head characterized by being bonded with the applied adhesive.
JP2878589U 1989-03-14 1989-03-14 Thermal head Expired - Lifetime JPH079639Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2878589U JPH079639Y2 (en) 1989-03-14 1989-03-14 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2878589U JPH079639Y2 (en) 1989-03-14 1989-03-14 Thermal head

Publications (2)

Publication Number Publication Date
JPH02121244U JPH02121244U (en) 1990-10-02
JPH079639Y2 true JPH079639Y2 (en) 1995-03-08

Family

ID=31252427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2878589U Expired - Lifetime JPH079639Y2 (en) 1989-03-14 1989-03-14 Thermal head

Country Status (1)

Country Link
JP (1) JPH079639Y2 (en)

Also Published As

Publication number Publication date
JPH02121244U (en) 1990-10-02

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