JPH0124073B2 - - Google Patents
Info
- Publication number
- JPH0124073B2 JPH0124073B2 JP58046442A JP4644283A JPH0124073B2 JP H0124073 B2 JPH0124073 B2 JP H0124073B2 JP 58046442 A JP58046442 A JP 58046442A JP 4644283 A JP4644283 A JP 4644283A JP H0124073 B2 JPH0124073 B2 JP H0124073B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- face
- base
- heat sink
- heating element
- 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
Links
- 238000007651 thermal printing Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/345—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、熱印字ヘツドに関する。[Detailed description of the invention] The present invention relates to thermal print heads.
従来のこの種の熱印字ヘツドには、第１図およ
び第２図に示すように、絶縁性の基体１の端面２
に発熱体３を設けたものがある。図中、４は発熱
体３に対する電流通路となる導体である。このよ
うな熱印字ヘツドでは、放熱板５を基体１の裏面
に設け、この放熱板５により発熱体３で発生した
熱を放熱して発熱体３が発生熱で異常に高くなり
すぎるのを防止するようにしている。ところが、
発熱体３が端面２に設けられているので、放熱板
５で充分な放熱が得られず、このため発熱体３の
温度が高くなりすぎて、感熱紙に記録濃度にむら
がある印字が行われ易く高速印字が困難であつ
た。 As shown in FIGS. 1 and 2, a conventional thermal printing head of this type includes an end surface 2 of an insulating substrate 1.
Some are equipped with a heating element 3. In the figure, 4 is a conductor that serves as a current path for the heating element 3. In such a thermal printing head, a heat dissipation plate 5 is provided on the back surface of the base 1, and the heat dissipation plate 5 dissipates the heat generated by the heating element 3 to prevent the heat generation element 3 from becoming abnormally high due to the generated heat. I try to do that. However,
Since the heating element 3 is provided on the end face 2, sufficient heat radiation cannot be obtained from the heat sink 5, and the temperature of the heating element 3 becomes too high, resulting in printing with uneven recording density on the thermal paper. It was easily brittle and difficult to print at high speed.
また、複数の熱印字ヘツドにより、例えば、３
色で熱印字させるような場合には、ローラプラテ
ンの周囲に、第１図および第２図に示される従来
の熱印字ヘツドが複数配置されることになる。こ
のように複数の熱印字ヘツドを、ローラプラテン
の周囲に配置するためには、放熱板５が取り付け
られた熱印字ヘツドの厚さ（第２図の左右方向の
長さ）ができるだけ薄い方が望ましい。 Additionally, multiple thermal printing heads can be used, e.g.
In the case of thermal printing in color, a plurality of conventional thermal printing heads, as shown in FIGS. 1 and 2, are arranged around the roller platen. In order to arrange multiple thermal printing heads around the roller platen in this way, the thickness of the thermal printing head to which the heat dissipation plate 5 is attached (the length in the left-right direction in Fig. 2) should be as thin as possible. desirable.
本発明は、上述の点に鑑みて為されたものであ
つて、絶縁性の基体の表裏面の内の一方の面から
前記基体の端面に亘つて導体を設けるとともに、
前記端面に発熱体を設け、前記表裏面の内の他方
の面側に放熱板を取り付けてなる熱印字ヘツドに
おいて、放熱効果を高めて高品質・高速の印字が
行えるようにするとともに、熱印字ヘツドの厚み
を可及的に低減することを目的とする。 The present invention has been made in view of the above points, and includes providing a conductor from one of the front and back surfaces of an insulating base to an end face of the base,
In a thermal printing head having a heating element on the end surface and a heat dissipation plate attached to the other of the front and back surfaces, the heat dissipation effect is enhanced to enable high-quality and high-speed printing, and the thermal printing head is The purpose is to reduce the thickness of the head as much as possible.
本発明では、上述の目的を達成するために、絶
縁性の基体の表裏面の内の一方の面から前記基体
の端面に亘つて導体を設けるとともに、前記端面
に発熱体を設け、前記表裏面の内の他方の面側に
放熱板を取り付けてなる熱印字ヘツドにおいて、
前記基体の一部を、前記他方の面側で、かつ、前
記端面の機械的強度を損なわない程度の該端面の
近傍位置から前記放熱板の形状に対応させて切欠
くとともに、この切欠きに、前記放熱板を、該放
熱板の少なくとも一部を嵌め込んだ状態で取り付
けている。 In the present invention, in order to achieve the above-mentioned object, a conductor is provided from one of the front and back surfaces of an insulating base body to an end face of the base body, and a heating element is provided on the end face. In a thermal printing head with a heat sink attached to the other side of the head,
A part of the base body is notched on the other surface side and from a position near the end face to an extent that does not impair the mechanical strength of the end face, corresponding to the shape of the heat sink, and the notch is , the heat sink is attached with at least a portion of the heat sink being fitted.
以下、図面によつて本発明の実施例について、
詳細に説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Explain in detail.
第３図は、本発明の一実施例の正面図、第４図
はその側面図であり、第１図および第２図の従来
例に対応する部分には、同一の参照符を付す。 FIG. 3 is a front view of one embodiment of the present invention, and FIG. 4 is a side view thereof. Portions corresponding to the conventional example in FIGS. 1 and 2 are given the same reference numerals.
この実施例の熱印字ヘツドＡは、絶縁性の基体
１の表面６から端面２に亘つて導体４，４…を設
けるとともに、端面２に発熱体３，３…を設けて
いる。 The thermal printing head A of this embodiment is provided with conductors 4, 4, .
この基体１の裏面７には、機械的強度が損なわ
れない程度、すなわち、使用上支障が生じない程
度に端面２に近接させて放熱板９の形状に対応さ
せて切欠き８が形成される。この切欠き８には、
放熱板９が、該放熱板９の少なくとも一部を嵌め
込んだ状態で接着剤により固定される。なお、１
０，１０…は、熱印字ヘツドＡのプリンタへの取
り付け用のビス孔である。 A notch 8 is formed in the back surface 7 of the base 1 so as to correspond to the shape of the heat sink 9 and close to the end surface 2 to the extent that mechanical strength is not impaired, that is, to the extent that no trouble occurs in use. . In this notch 8,
The heat sink 9 is fixed with an adhesive in a state where at least a portion of the heat sink 9 is fitted. In addition, 1
0, 10... are screw holes for attaching the thermal printing head A to the printer.
このように基体１の裏面７側の端面２の近傍位
置から切欠いて放熱板９を取り付けるので、発熱
体３の端面２の真裏部分に放熱板９が位置するこ
とになり、その放熱効果は高くなる。 Since the heat dissipation plate 9 is installed by cutting out the base 1 from a position near the end surface 2 on the back surface 7 side, the heat dissipation plate 9 is located directly behind the end surface 2 of the heating element 3, and its heat dissipation effect is high. Become.
さらに、放熱板９の厚み方向（第４図の左右方
向）の一部が、基体１に嵌め込まれることになる
ので、放熱板９を含む熱印字ヘツドＡの全体とし
ての厚さが従来例に比べて薄くなり、多色印字を
行うような場合に、ローラプラテンの周囲に複数
の熱印字ヘツドを容易に配置できることになる。 Furthermore, since a part of the heat sink 9 in the thickness direction (left and right direction in FIG. 4) is fitted into the base 1, the overall thickness of the thermal printing head A including the heat sink 9 is smaller than that of the conventional example. This makes it easier to arrange multiple thermal print heads around the roller platen when printing in multiple colors.
第５図は他の実施例の正面図、第６図はその側
面図であり、第１図〜第４図と対応する部分には
同一の符号が付される。この実施例の熱印字ヘツ
ドＢで注目すべきは、切欠き８′が上述の実施例
に比べてより小さくされていることである。他の
構成は上述の実施例のそれと同様である。 FIG. 5 is a front view of another embodiment, and FIG. 6 is a side view thereof, and parts corresponding to those in FIGS. 1 to 4 are given the same reference numerals. What is noteworthy about the thermal printing head B of this embodiment is that the notch 8' is smaller than that of the embodiment described above. The other configurations are similar to those of the above embodiment.
なお、上記各実施例において、発熱体３の駆動
回路を基体１の表面６に設けてもよいことは勿論
である。 In each of the embodiments described above, it goes without saying that the drive circuit for the heating element 3 may be provided on the surface 6 of the base 1.
以上のように本発明によれば、基体の一部を、
端面の近傍位置から放熱板の形状に対応させて切
欠くとともに、この切欠きに、前記放熱板を、該
放熱板の少なくとも一部を嵌め込んだ状態で取り
付けているので、放熱板は、発熱体の熱が効率良
く伝達される位置に配置されることになり、高品
質で、かつ、高速の印字が可能になり、さらに、
放熱板の一部が基体に嵌め込まれることにより、
放熱板を含む熱印字ヘツドの全体としての厚さが
従来例に比べて薄くなり、多色印字を行うような
場合に、ローラプラテンの周囲に複数の熱印字ヘ
ツドを容易に配置できることになる。 As described above, according to the present invention, a part of the base body is
A notch is formed near the end face corresponding to the shape of the heat sink, and the heat sink is attached to the notch with at least a portion of the heat sink fitted, so that the heat sink does not generate heat. It will be placed in a position where body heat is efficiently transferred, enabling high-quality and high-speed printing.
By fitting a part of the heat sink into the base,
The overall thickness of the thermal printing head including the heat dissipation plate is thinner than that of the conventional example, and a plurality of thermal printing heads can be easily arranged around the roller platen when performing multicolor printing.
第１図、第２図は従来例、第３図〜第６図は本
発明の各実施例を示し、第１図、第３図、第５図
は正面図、第２図、第４図、第６図は側面図であ
る。
Ａ，Ｂ……熱印字ヘツド、１……基体、２……
端面、３……発熱体、８，８′……切欠き、９…
…放熱板。
1 and 2 show a conventional example, and FIGS. 3 to 6 show each embodiment of the present invention, and FIGS. 1, 3, and 5 are front views, and FIGS. 2 and 4. , FIG. 6 is a side view. A, B...Thermal printing head, 1...Base, 2...
End face, 3... Heating element, 8, 8'... Notch, 9...
...heat sink.
Claims (1)
記基体の端面に亘つて導体を設けるとともに、前
記端面に発熱体を設け、前記表裏面の内の他方の
面側に放熱板を取り付けてなる熱印字ヘツドにお
いて、 前記基体の一部を、前記他方の面側で、かつ、
前記端面の機械的強度を損なわない程度の該端面
の近傍位置から前記放熱板の形状に対応させて切
欠くとともに、この切欠きに、前記放熱板を、該
放熱板の少なくとも一部を嵌め込んだ状態で取り
付けてなる熱印字ヘツド。[Scope of Claims] 1. A conductor is provided from one of the front and back surfaces of an insulating base to an end face of the base, a heating element is provided on the end face, and the other of the front and back faces is provided with a heating element. In a thermal printing head having a heat dissipation plate attached to the side, a part of the base body is attached to the other side, and
A notch is made corresponding to the shape of the heat sink from a position near the end face to an extent that does not impair the mechanical strength of the end face, and the heat sink, at least a portion of the heat sink is fitted into the notch. A thermal printing head that is installed in the open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58046442A JPS59171668A (en) | 1983-03-19 | 1983-03-19 | Thermal printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58046442A JPS59171668A (en) | 1983-03-19 | 1983-03-19 | Thermal printing head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59171668A JPS59171668A (en) | 1984-09-28 |
| JPH0124073B2 true JPH0124073B2 (en) | 1989-05-10 |
Family
ID=12747277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58046442A Granted JPS59171668A (en) | 1983-03-19 | 1983-03-19 | Thermal printing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59171668A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5183536A (en) * | 1975-01-18 | 1976-07-22 | Gen Corp | |
| JPS5190834A (en) * | 1975-02-06 | 1976-08-09 |
-
1983
- 1983-03-19 JP JP58046442A patent/JPS59171668A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5183536A (en) * | 1975-01-18 | 1976-07-22 | Gen Corp | |
| JPS5190834A (en) * | 1975-02-06 | 1976-08-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59171668A (en) | 1984-09-28 |
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