JP2501667Y2 - Thermal head - Google Patents

Thermal head

Info

Publication number
JP2501667Y2
JP2501667Y2 JP5591589U JP5591589U JP2501667Y2 JP 2501667 Y2 JP2501667 Y2 JP 2501667Y2 JP 5591589 U JP5591589 U JP 5591589U JP 5591589 U JP5591589 U JP 5591589U JP 2501667 Y2 JP2501667 Y2 JP 2501667Y2
Authority
JP
Japan
Prior art keywords
recording paper
platen
thermal head
heating element
pinch 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.)
Expired - Lifetime
Application number
JP5591589U
Other languages
Japanese (ja)
Other versions
JPH02146035U (en
Inventor
隆蔵 宇根
研一 成木
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5591589U priority Critical patent/JP2501667Y2/en
Publication of JPH02146035U publication Critical patent/JPH02146035U/ja
Application granted granted Critical
Publication of JP2501667Y2 publication Critical patent/JP2501667Y2/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〕 この考案は、サーマルヘツドの回路素子を保護し、記
録紙の先端をプラテンと発熱体の当接部へ導く保護カバ
ーの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a protective cover that protects a circuit element of a thermal head and guides the leading end of a recording paper to a contact portion between a platen and a heating element. .

〔従来の技術〕 第２図は例えば特開昭60-116470号公報に示されたサ
ーマルヘツドの断面図である。[Prior Art] FIG. 2 is a sectional view of a thermal head disclosed in, for example, Japanese Patent Laid-Open No. 60-116470.

図において、（１）はプラテン、（２）は記録紙、
（３）は記録紙（２）のプラテン（１）への密着度を増
やし滑りをなくするために巻着させるピンチローラ、
（４）はインクシート、（５）は発熱体基板、（６）は
発熱体基板（５）に設けられインクシート（４）および
記録紙（２）を介してプラテン（１）に当接する発熱体
である。（７）は配線基板であり、回路素子（８）およ
び回路素子（８）の一部である発熱体駆動IC（8a）が取
り付けられている。（９）は回路素子（８）を保護し、
インクシート（４）および記録紙（２）をプラテン
（１）と発熱体（６）の間へ導く傾斜部（9a）を持つ保
護カバーである。（10）は発熱体基板（５），配線基板
（７），保護カバー（９）が取り付けられた該サーマル
ヘツドの基台である。In the figure, (1) is a platen, (2) is recording paper,
(3) is a pinch roller that is wound around the recording paper (2) to increase the degree of adhesion to the platen (1) and prevent slippage.
(4) is an ink sheet, (5) is a heating element substrate, (6) is heat generated on the heating element substrate (5), which contacts the platen (1) via the ink sheet (4) and the recording paper (2) It is the body. Reference numeral (7) is a wiring board to which a circuit element (8) and a heating element driving IC (8a) which is a part of the circuit element (8) are attached. (9) protects the circuit element (8),
A protective cover having an inclined portion (9a) for guiding the ink sheet (4) and the recording paper (2) between the platen (1) and the heating element (6). Reference numeral (10) is a base of the thermal head to which a heating element substrate (5), a wiring substrate (7) and a protective cover (9) are attached.

次に動作の説明をする。プラテン（１）とピンチロー
ラ（３）との間から搬入された一般の記録紙（２）は両
者の回転により送り込まれ、緊張されたインクシート
（４）上を滑りながらプラテン（１）と発熱体（６）の
間へ送られる。それに対しトランスペアレンシーシー
ト，昇華形プリンタの記録紙等の腰の強い紙質の記録紙
（２）ではインクシート（４）の張力に記録紙の剛性が
勝るため記録紙（２）の先端がインクシート（４）に当
り、インクシート（４）を押して傾斜部（9a）に沿つて
プラテン（１）と発熱体（６）の間へ送られる。Next, the operation will be described. The general recording paper (2) carried in between the platen (1) and the pinch roller (3) is fed by the rotation of both, and heats up with the platen (1) while sliding on the tensioned ink sheet (4). It is sent between the bodies (6). On the other hand, in a recording sheet (2) having a strong paper quality such as a transparency sheet or a recording sheet of a dye sublimation printer, the rigidity of the recording sheet exceeds the tension of the ink sheet (4), so that the leading edge of the recording sheet (2) is an ink sheet. Upon hitting (4), the ink sheet (4) is pushed and sent along the inclined portion (9a) between the platen (1) and the heating element (6).

そして回路素子（８）からの電気信号によつて発熱体
（６）を加熱し、インクシート（４）のインクを記録紙
（２）へ熱転写してゆく。Then, the heating element (6) is heated by an electric signal from the circuit element (8) to thermally transfer the ink of the ink sheet (4) onto the recording paper (2).

〔考案が解決しようとする課題〕[Problems to be solved by the device]

上記の様に構成されたサーマルヘツドでは、トランス
ペアレンシーシート，昇華形プリンタの記録紙等の腰の
強い紙質の記録紙（２）では、プラテン（１）とピンチ
ローラ（３）との間から搬入された記録紙（２）の先端
が傾斜部（9a）に当たると記録紙（２）の先端の湾曲に
より矢印Ａの方向へ逸走し記録紙（２）の挿入が正常に
なされないことがあるといつた課題があつた。In the thermal head configured as described above, a recording sheet (2) having a strong paper quality such as a transparency sheet or a recording sheet of a sublimation printer is loaded from between the platen (1) and the pinch roller (3). When the leading end of the recording paper (2) hits the inclined portion (9a), the bending of the leading end of the recording paper (2) may cause a deviation in the direction of arrow A, and the insertion of the recording paper (2) may not be performed normally. I had a problem.

この考案は上記のような課題を解決するためになされ
たもので、プラテン（１）ピンチローラ（３）との間か
ら搬入された腰の強い紙質の記録紙（２）でも常に記録
紙（２）の挿入が正常になされるサーマルヘツドを得る
ことを目的とする。The present invention has been made to solve the above-mentioned problems, and even if the recording paper (2) of a strong paper quality carried in between the platen (1) and the pinch roller (3) is used, the recording paper (2 ) Is intended to obtain a thermal head in which insertion is normally performed.

〔課題を解決するための手段〕[Means for solving the problem]

この考案に係るサーマルヘツドは、回路素子を保護
し、かつ記録紙の進入方向延長線と交叉する凹曲面が形
成された傾斜部を有する保護カバーを設けたものであ
る。The thermal head according to the present invention is provided with a protective cover which protects the circuit element and has an inclined portion formed with a concave curved surface intersecting with the extension line of the recording paper in the entrance direction.

〔作用〕[Action]

この考案においては、凹曲面が形成された傾斜部が搬
入される腰の強い紙質の記録紙の先端を発熱体の方向へ
案内する。In this invention, the leading end of the recording paper of strong paper quality into which the inclined portion having the concave curved surface is carried is guided toward the heating element.

〔実施例〕〔Example〕

第１図はこの考案の一実施例を示すサーマルヘツドの
断面図である。FIG. 1 is a sectional view of a thermal head showing an embodiment of the present invention.

図において、（１）〜（８），（10）は上記従来例に
おいて説明したものと同様である。In the figure, (1) to (8) and (10) are the same as those described in the conventional example.

（11）は回路素子（８）を保護し、且つピンチローラ
（３）とプラテン（１）との間から搬入される記録紙
（２）の進入方向延長線と交叉する凹曲面が形成された
傾斜部（11a）を持つ保護カバーである。（12）は回路
素子（８），発熱体（６）等から発生する熱を放散させ
るヒートシンクである。Reference numeral (11) protects the circuit element (8), and a concave curved surface is formed so as to intersect the extension line of the recording paper (2) which is carried in between the pinch roller (3) and the platen (1) in the approach direction. It is a protective cover with an inclined part (11a). A heat sink (12) dissipates heat generated from the circuit element (8), the heating element (6) and the like.

次に動作について説明をする。腰の強い紙質の記録紙
（２）がプラテン（１）とピンチローラ（３）との間か
ら搬入されると記録紙（２）は両者の回転により、その
先端はインクシート（４）に当りインクシート（４）を
押して傾斜部（11a）の凹曲面に沿つて導かれプラテン
（１）と発熱体（６）の間へ送られる。Next, the operation will be described. When the recording paper (2) of strong paper quality is carried in from between the platen (1) and the pinch roller (3), the recording paper (2) rotates and both ends hit the ink sheet (4). The ink sheet (4) is pushed and guided along the concave curved surface of the inclined portion (11a) and sent between the platen (1) and the heating element (6).

従つて、記録紙（２）先端の湾曲に左右されず記録紙
（２）をプラテン（１）と発熱体（６）の間へ送ること
ができる。Therefore, the recording paper (2) can be sent between the platen (1) and the heating element (6) without being influenced by the curvature of the leading end of the recording paper (2).

以下の動作は上記従来例において説明したものと同様
である。The following operation is similar to that described in the above-mentioned conventional example.

〔考案の効果〕[Effect of device]

以上のようにこの考案によれば、傾斜部の凹曲面が搬
入される腰の強い紙質の記録紙の先端を発熱体へ案内す
るので、常に記録紙の挿入が正常になされるサーマルヘ
ツドを得ることができる。As described above, according to the present invention, since the leading end of the recording paper of strong paper quality into which the concave curved surface of the inclined portion is carried is guided to the heating element, a thermal head in which the recording paper is always inserted normally can be obtained. be able to.

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

第１図はこの考案の一実施例を示すサーマルヘツドの断
面図、第２図は従来のサーマルヘツドの断面図である。
（１）はプラテン、（２）は記録紙、（３）はピンチロ
ーラ、（４）はインクシート、（６）は発熱体、（８）
は回路素子、（９），（11）は保護カバー、（11a）は
凹曲面が形成された傾斜部である。 なお、各図中同一符号は同一または相当部分を示す。FIG. 1 is a sectional view of a thermal head showing an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional thermal head.
(1) is a platen, (2) is recording paper, (3) is a pinch roller, (4) is an ink sheet, (6) is a heating element, (8)
Is a circuit element, (9) and (11) are protective covers, and (11a) is an inclined portion having a concave curved surface. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項１】記録紙をプラテンへ巻着させるピンチロー
ラをもつ熱転写形プリンターのサーマルヘツドにおい
て、上記記録紙およびインクシートを介して上記プラテ
ンと当接する発熱体に印加する電気信号を生成する回路
素子を保護し、且つ上記ピンチローラと上記プラテンと
の間から搬入される上記記録紙の進入方向延長線と交叉
する凹曲面が形成された傾斜部を有する保護カバーを設
けたことを特徴とするサーマルヘツド。1. A thermal head of a thermal transfer printer having a pinch roller for winding a recording paper around a platen, a circuit for generating an electric signal to be applied to a heating element contacting the platen via the recording paper and an ink sheet. A protective cover is provided which protects the element and has an inclined portion formed with a concave curved surface that intersects with an extension line of the recording paper carried in from between the pinch roller and the platen. Thermal head.
JP5591589U 1989-05-15 1989-05-15 Thermal head Expired - Lifetime JP2501667Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5591589U JP2501667Y2 (en) 1989-05-15 1989-05-15 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5591589U JP2501667Y2 (en) 1989-05-15 1989-05-15 Thermal head

Publications (2)

Publication Number Publication Date
JPH02146035U JPH02146035U (en) 1990-12-11
JP2501667Y2 true JP2501667Y2 (en) 1996-06-19

Family

ID=31579287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5591589U Expired - Lifetime JP2501667Y2 (en) 1989-05-15 1989-05-15 Thermal head

Country Status (1)

Country Link
JP (1) JP2501667Y2 (en)

Also Published As

Publication number Publication date
JPH02146035U (en) 1990-12-11

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