JPH0436929Y2 - - Google Patents
Info
- Publication number
- JPH0436929Y2 JPH0436929Y2 JP1985198997U JP19899785U JPH0436929Y2 JP H0436929 Y2 JPH0436929 Y2 JP H0436929Y2 JP 1985198997 U JP1985198997 U JP 1985198997U JP 19899785 U JP19899785 U JP 19899785U JP H0436929 Y2 JPH0436929 Y2 JP H0436929Y2
- Authority
- JP
- Japan
- Prior art keywords
- platen
- thermal head
- heat generating
- head
- generating part
- 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
- 238000003825 pressing Methods 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案はプリンタの印刷機構に係り、サーマル
ヘツドをプラテンに押圧して発熱部を発熱させ印
刷を行なうプリンタの印刷機構に関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a printing mechanism of a printer, and more particularly, to a printing mechanism of a printer that presses a thermal head against a platen to generate heat in a heat generating section to perform printing.
従来の技術
従来より、インクリボンに塗布された熱溶解性
インクにサーマルヘツドを圧接し、インクリボン
より溶解されたインクを記録紙に転写して印刷を
行なうサーマルプリンタがある。BACKGROUND ART Conventionally, there is a thermal printer that presses a thermal head against heat-melting ink applied to an ink ribbon and transfers the melted ink from the ink ribbon onto recording paper to perform printing.
従来のプリンタの印刷機構は、第3図に示す如
く、サーマルヘツド1を取付けたヘツドベース2
の略中央位置を押圧部材3により矢印A方向に押
圧して、インクリボン4及び記録紙5をプラテン
6に圧接して印刷を行なつていた。 The printing mechanism of a conventional printer consists of a head base 2 on which a thermal head 1 is attached, as shown in FIG.
The ink ribbon 4 and the recording paper 5 are pressed against the platen 6 by pressing a substantially central position thereof in the direction of the arrow A by the pressing member 3 to perform printing.
考案が解決しようとする問題点
上記のヘツドベース2及び押圧部材3は矢印B
方向に移動して順次印刷を行ない、サーマルヘツ
ド2の発熱部分のインクリボン4の印刷終了部分
より速やかに離して印刷が鮮明になるよう、サー
マルヘツド1の発熱部1aはサーマルヘツド1の
中央位置より端部側に偏つて設けられている。こ
のように、プラテン6を押圧する発熱部1aが押
圧部材3の押圧方向上より離れており、ヘツドベ
ース2はヘツドキヤリジ(図示せず)に多少のガ
タをもつて取付けられているため、印刷時にサー
マルヘツド1がプラテン6に対して傾き、発熱部
1aがインクリボン4にうまく当接せず印刷が不
鮮明になる。Problems to be solved by the invention The above head base 2 and pressing member 3 are
The heat generating part 1a of the thermal head 1 is located at the center of the thermal head 1 so that printing can be done clearly by moving the heat generating part of the thermal head 2 to the ink ribbon 4 immediately after printing is completed. It is located closer to the end. In this way, the heat generating part 1a that presses the platen 6 is further away from the pressing member 3 in the pressing direction, and the head base 2 is attached to the head carriage (not shown) with some play, so thermal The head 1 is tilted with respect to the platen 6, and the heat generating part 1a does not contact the ink ribbon 4 well, resulting in unclear printing.
上記の問題点を解決するために、第3図に一点
鎖線で示す如くサーマルヘツド1に偽押圧部1b
を設け、サーマルヘツド1がプラテン6に対して
傾くことを防止するものがある。しかし、このも
のは発熱部1aの押圧力が押圧部材3の押圧力の
略1/2となり、また偽押圧部1bが必要であり製
造コストか高くなるという問題点があつた。 In order to solve the above problem, a false pressing part 1b is attached to the thermal head 1 as shown by the dashed line in FIG.
There is a method that prevents the thermal head 1 from tilting with respect to the platen 6. However, this has the problem that the pressing force of the heat generating part 1a is approximately half the pressing force of the pressing member 3, and that a false pressing part 1b is required, which increases the manufacturing cost.
そこで、本考案は、発熱部の真後ろを押圧する
ことにより上記の問題点を解決したプリンタの印
刷機構を提供することを目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a printing mechanism for a printer that solves the above problems by pressing directly behind the heat generating part.
問題点を解決するための手段
本考案において、サーマルヘツドはその端部近
傍に発熱部を設けられている。サーマルヘツドの
プラテンに対向する発熱部設置面の背面側におけ
る発熱部に対応する真後ろの位置がプラテン方向
に押圧される。Means for Solving the Problems In the present invention, the thermal head is provided with a heat generating portion near its end. A position immediately behind the heat generating part on the back side of the heat generating part installation surface facing the platen of the thermal head is pressed toward the platen.
作 用
本発明においては、発熱部の真後ろをプラテン
方向に押圧するため、サーマルヘツドがプラテン
に対して傾くことなく圧接され、鮮明な印刷が可
能となる。Function In the present invention, since the area directly behind the heat generating part is pressed toward the platen, the thermal head is pressed against the platen without being tilted, and clear printing is possible.
実施例
第1図は本考案機構の一実施例の平面図、第2
図は本考案機構を適用したプリンタの一実施例の
断面図を示す。両図中、第3図と同一部分には同
一符合を付す。第2図において、記録紙5をガイ
ド部材10にガイドされて矢印C方向に挿入され
る。記録紙5は矢印D方向に回転駆動される送り
ローラ11と回転自在に支持された押えローラ1
2とに挟持され、送りローラ11の駆動により送
りローラ11の上方に送られてインクリボン4と
プラテン13との間に挿入される。このとき押え
ローラ12は矢印E方向に回転する。Embodiment FIG. 1 is a plan view of an embodiment of the mechanism of the present invention, and FIG.
The figure shows a sectional view of an embodiment of a printer to which the mechanism of the present invention is applied. In both figures, the same parts as in Fig. 3 are given the same reference numerals. In FIG. 2, recording paper 5 is guided by guide member 10 and inserted in the direction of arrow C. The recording paper 5 is transported by a feed roller 11 that is rotationally driven in the direction of arrow D and a presser roller 1 that is rotatably supported.
The ink ribbon 2 is held between the ink ribbon 4 and the ink ribbon 2 , and is sent above the feed roller 11 by the drive of the feed roller 11 and inserted between the ink ribbon 4 and the platen 13 . At this time, the presser roller 12 rotates in the direction of arrow E.
ここで、プラテン13は送りローラ11の上方
に配置されたプラテンガイド14に支点15で揺
動自在に支持されている。また第1図に示す如
く、サーマルヘツド16はヘツドベース17に取
付固定されている。ヘツドベース17は、その両
側端を脚部材18a,18bに固定されている。
脚部材18a,18b夫々はヘツドキヤリジ(図
示せず)に固定された腕部材19a,19bに軸
20a,20bを中心として回動自在に支持され
ており、更にヘツドキヤリジと脚部材18bとの
間に張架されたコイルバネ21によりサーマルヘ
ツド16がプラテン13から離間する方向に付勢
されている。 Here, the platen 13 is swingably supported at a fulcrum 15 by a platen guide 14 arranged above the feed roller 11. Further, as shown in FIG. 1, the thermal head 16 is attached and fixed to a head base 17. The head base 17 has its both ends fixed to leg members 18a and 18b.
The leg members 18a, 18b are supported by arm members 19a, 19b fixed to a head carriage (not shown) so as to be rotatable about shafts 20a, 20b, respectively, and a tension member is provided between the head carriage and the leg member 18b. The thermal head 16 is biased in a direction away from the platen 13 by a suspended coil spring 21.
サーマルヘツド16には第1図に示す如く中央
より脚部18aに偏つた端部近傍位置にブレーズ
16b,16cが形成され、ブレーズ16b,1
6c夫々の中間に発熱部16aが設けられてい
る。前記の如くサーマルヘツド16はヘツドキヤ
リジにより矢印B方向に移動せしめられて順次印
刷を行なう。ヘツドベース17のサーマルヘツド
16の発熱部16aの取付面に対する背面の発熱
部16aに対応する真後ろの位置には押圧部材2
2の凸部22aが当接している。 As shown in FIG. 1, the thermal head 16 has blazes 16b and 16c formed near the ends of the leg portions 18a from the center.
A heat generating portion 16a is provided between each of the heat generating portions 6c. As described above, the thermal head 16 is moved in the direction of arrow B by the head carriage to sequentially perform printing. A pressing member 2 is located directly behind the heat generating part 16a of the thermal head 16 of the head base 17 on the back side of the mounting surface of the heat generating part 16a of the thermal head 16.
The two protrusions 22a are in contact with each other.
印刷時にはこの押圧部材22がヘツドキヤリジ
に設けられたヘツドアツプ/ダウン駆動機構(図
示せず)により矢印A方向に押動される。これに
よつてサーマルヘツド16はブレーズ16b,1
6cでインクリボン4及び記録紙5を押動してプ
ラテン6に圧接する。プラテン6は支点15を中
心として揺動し、発熱部16aはプラテン6に対
して垂直方向に圧接される。また押圧部材22の
凸部22aはヘツドベース17の発熱部16aの
背面を押圧するため、ヘツドベース17と腕部1
9a,19bとの間に多少のガタがあつてもサー
マルヘツド16がプラテン6に対して傾くことが
なく、鮮明な印刷を行なうことができる。また、
上記サーマルヘツド16には、従来の如く偽押圧
部を設ける必要がないので押圧部材22の押圧力
がそのままインクリボン4、記録紙5、プラテン
6にかかり、またサーマルヘツド16の製造コス
トを低く抑えることができる。 During printing, this pressing member 22 is pushed in the direction of arrow A by a head up/down drive mechanism (not shown) provided in the head carriage. As a result, the thermal head 16 is connected to the blazes 16b, 1.
6c, the ink ribbon 4 and the recording paper 5 are pushed and pressed against the platen 6. The platen 6 swings about the fulcrum 15, and the heat generating portion 16a is pressed against the platen 6 in a vertical direction. Further, since the convex portion 22a of the pressing member 22 presses the back surface of the heat generating portion 16a of the head base 17, the head base 17 and the arm portion 1
Even if there is some play between the thermal head 16 and the platen 9a and 19b, the thermal head 16 will not tilt with respect to the platen 6, and clear printing can be performed. Also,
Since the thermal head 16 does not need to be provided with a false pressing part as in the past, the pressing force of the pressing member 22 is directly applied to the ink ribbon 4, the recording paper 5, and the platen 6, and the manufacturing cost of the thermal head 16 can be kept low. be able to.
なお、押圧部材22の押圧位置を直接バネ等に
よつて押圧し、例えば脚部18bをヘツドアツプ
時にプラテンより離間する方向へ引張する構成で
あつても良く、上記実施例に限定されない。 Note that the pressing position of the pressing member 22 may be directly pressed by a spring or the like, and the configuration may be such that, for example, the leg portion 18b is pulled in a direction away from the platen when the head is raised, and is not limited to the above embodiment.
考案の効果
上述の如く、本考案になるプリンタの印刷機構
は、発熱部の真後ろをプラテン方向に押圧するた
め、発熱部がプラテンに対して傾くことなく圧接
されて鮮明な印刷が可能となり、従来の如く偽押
圧部を設ける必要がないので、押圧力がそのまま
発熱部にかかり、またサーマルヘツドの製造コス
トを低く抑えることができる。Effects of the invention As mentioned above, the printing mechanism of the printer according to the invention presses the area directly behind the heat generating part toward the platen, so the heat generating part is pressed against the platen without tilting, making it possible to print clearly. Since there is no need to provide a false pressing part as in the above, the pressing force is directly applied to the heat generating part, and the manufacturing cost of the thermal head can be kept low.
第1図は本考案機構の一実施例の平面図、第2
図は本考案機構を適用したプリンタの一実施例の
断面図、第3図は従来機構の一例の平面図であ
る。
4……インクリボン、5……記録紙、6……プ
ラテン、16……サーマルヘツド、17……ヘツ
ドベース、22……押圧部材。
Figure 1 is a plan view of one embodiment of the mechanism of the present invention;
The figure is a sectional view of an embodiment of a printer to which the mechanism of the present invention is applied, and FIG. 3 is a plan view of an example of a conventional mechanism. 4... Ink ribbon, 5... Recording paper, 6... Platen, 16... Thermal head, 17... Head base, 22... Pressing member.
Claims (1)
ルヘツドの端部近傍に設けられた発熱部を発熱さ
せ印刷を行なうプリンタの印刷機構において、該
サーマルヘツドの発熱部が設けられた面の背面側
の該発熱部に対応する位置を該プラテン方向に押
圧するよう構成してなるプリンタの印刷機構。 In a printing mechanism of a printer that presses a thermal head against a platen and generates heat in a heat generating part provided near the end of the thermal head to perform printing, the heat generated on the back side of the surface on which the heat generating part of the thermal head is provided. A printing mechanism of a printer configured to press a position corresponding to a portion toward the platen.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985198997U JPH0436929Y2 (en) | 1985-12-24 | 1985-12-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985198997U JPH0436929Y2 (en) | 1985-12-24 | 1985-12-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62104953U JPS62104953U (en) | 1987-07-04 |
JPH0436929Y2 true JPH0436929Y2 (en) | 1992-08-31 |
Family
ID=31160210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985198997U Expired JPH0436929Y2 (en) | 1985-12-24 | 1985-12-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0436929Y2 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5349414U (en) * | 1976-09-30 | 1978-04-26 | ||
JPS5385438A (en) * | 1977-01-06 | 1978-07-27 | Sanyo Electric Co Ltd | Drive system for typing head |
JPS58205784A (en) * | 1982-05-27 | 1983-11-30 | Canon Inc | Printing device |
JPS59179382A (en) * | 1983-03-31 | 1984-10-11 | Ricoh Co Ltd | Head-pressing mechanism for thermal printer |
JPS59204576A (en) * | 1983-05-09 | 1984-11-19 | Tokyo Electric Co Ltd | Thermal printer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112555U (en) * | 1982-01-27 | 1983-08-01 | 松下電器産業株式会社 | Thermal head for serial printer |
JPS60191354U (en) * | 1984-05-24 | 1985-12-18 | シャープ株式会社 | recording head device |
JPH0342772Y2 (en) * | 1985-04-19 | 1991-09-06 |
-
1985
- 1985-12-24 JP JP1985198997U patent/JPH0436929Y2/ja not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5349414U (en) * | 1976-09-30 | 1978-04-26 | ||
JPS5385438A (en) * | 1977-01-06 | 1978-07-27 | Sanyo Electric Co Ltd | Drive system for typing head |
JPS58205784A (en) * | 1982-05-27 | 1983-11-30 | Canon Inc | Printing device |
JPS59179382A (en) * | 1983-03-31 | 1984-10-11 | Ricoh Co Ltd | Head-pressing mechanism for thermal printer |
JPS59204576A (en) * | 1983-05-09 | 1984-11-19 | Tokyo Electric Co Ltd | Thermal printer |
Also Published As
Publication number | Publication date |
---|---|
JPS62104953U (en) | 1987-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0436929Y2 (en) | ||
US4913567A (en) | Head-pressure mechanism in thermal printer | |
JPH06143736A (en) | Thermal printer | |
JPH0764083B2 (en) | Thermal head holding device | |
JP2615704B2 (en) | Card recorder | |
US4789873A (en) | Thermal transfer printer | |
JPS60151081A (en) | Supporting device for thermal head | |
JPH0541890Y2 (en) | ||
JP2905632B2 (en) | Thermal printer | |
JPH0322821B2 (en) | ||
JPS6062955U (en) | Printer device paper guide | |
JPH0547650Y2 (en) | ||
JPH0333113B2 (en) | ||
JPH08295063A (en) | Thermal printer | |
JPH05309907A (en) | Support mechanism of thermal head | |
JP2872093B2 (en) | Printer printing mechanism | |
JPH0512045Y2 (en) | ||
JPH0716208Y2 (en) | Time recorder printing device | |
JPS6225517B2 (en) | ||
JPH0432286Y2 (en) | ||
JP2529812Y2 (en) | Thermal recording device | |
JPH0811385A (en) | Head retraction mechanism of line thermal printer | |
JPS5848134Y2 (en) | Printer head release device | |
JPS623244Y2 (en) | ||
JPH088838Y2 (en) | Impact dot head |