JP2708020B2 - Ribbon cassette attachment / detachment mechanism - Google Patents
Ribbon cassette attachment / detachment mechanismInfo
- Publication number
- JP2708020B2 JP2708020B2 JP7163234A JP16323495A JP2708020B2 JP 2708020 B2 JP2708020 B2 JP 2708020B2 JP 7163234 A JP7163234 A JP 7163234A JP 16323495 A JP16323495 A JP 16323495A JP 2708020 B2 JP2708020 B2 JP 2708020B2
- Authority
- JP
- Japan
- Prior art keywords
- ribbon cassette
- engaging
- engagement
- hook
- projection
- 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 - Fee Related
Links
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
- B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
- B41J35/28—Detachable carriers or holders for ink-ribbon mechanisms
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、プリンタにおけるリボ
ンカセット着脱機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ribbon cassette attaching / detaching mechanism in a printer.
【0002】[0002]
【従来の技術】従来、リボンカセット着脱機構は、図6
(a)に示すように、キャリアフレーム3上に係合フッ
ク3Aが形成され、その係合フック3Aとリボンカセッ
ト70の係合ピン71が係合している。2. Description of the Related Art Conventionally, a ribbon cassette attaching / detaching mechanism is shown in FIG.
As shown in (a), an engagement hook 3A is formed on the carrier frame 3, and the engagement hook 3A and the engagement pin 71 of the ribbon cassette 70 are engaged.
【0003】[0003]
【発明が解決しようとする課題】図6(b)〜(d)に
示すようにリボンカセット70を外す時にリボンカセッ
トの係合ピン71を中心にして、図6の右まわりに回転
させ、その後リボンカセット70を左方向に移動させて
から上方向に引っぱって取り出す。しかし、係合ピンが
キャリアフレーム上の係合フックから外れない時に、リ
ボンカセット70を無理に上げたり、リボンカセットを
図6(d)の状態からさらに右方向に回転させると、係
合ピンや係合フックを破壊してしまうという問題点があ
った。As shown in FIGS. 6B to 6D, when the ribbon cassette 70 is removed, the ribbon cassette 70 is rotated clockwise around the engaging pin 71 of the ribbon cassette, and then rotated. After moving the ribbon cassette 70 to the left, pull it upward to remove it. However, when the engagement pin is not disengaged from the engagement hook on the carrier frame, if the ribbon cassette 70 is forcibly raised or the ribbon cassette is further rotated rightward from the state shown in FIG. There is a problem that the engagement hook is broken.
【0004】本発明の目的は、リボンカセットを取り外
すときに係合ピンや係合フックの破壊の恐れを生じない
リボンカセット着脱機構を提供することにある。An object of the present invention is to provide a ribbon cassette attaching / detaching mechanism which does not cause a risk of breakage of an engaging pin or an engaging hook when removing a ribbon cassette.
【0005】[0005]
【課題を解決するための手段】本発明によれば、リボン
カセットをキャリアフレームに固定するための係合ピン
とこの係合ピンを係合させるための係合フックを有する
キャリアフレームとを含み、リボンカセットを一定角度
持ち上げて取り外す時、リボンカセット後端部と接触
し、係合ピンを係合フックから遠ざける傾斜面を有する
突起物を有することを特徴とするリボンカセット着脱機
構が得られる。According to the present invention, there is provided a ribbon frame including an engaging pin for fixing a ribbon cassette to a carrier frame and a carrier frame having an engaging hook for engaging the engaging pin. When the cassette is lifted and removed by a certain angle, a ribbon cassette attaching / detaching mechanism having a projection having an inclined surface that comes into contact with the rear end of the ribbon cassette and keeps the engaging pin away from the engaging hook is obtained.
【0006】[0006]
【実施例】次に本発明の実施例について図面を参照して
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.
【0007】図1は本発明のインクリボンカセット着脱
機構の第1の実施例を示す斜視図である。図において、
プラテン1は、記録紙を挟んでプリントヘッド2に対向
する。プリントヘッド2は、インクリボンを有し、ヘッ
ド内のワイヤによるインパクト力で、プラテン上の記録
紙に印字する。プリントヘッド2はキャリアフレーム3
に固定されている。キャリアフレーム3は、ガイドシャ
フト4およびメインステイ5の構造材に支持され、タイ
ミングベルト6によってガイドシャフト4の長さ方向に
スライド可能である。キャリアフレーム3の上には、リ
ボンカセット7が取り外し可能に装着されている。リボ
ンカセット7のメインステイ5の側の後端には、一対の
突出片7Aが形成され、その突出片7Aの先端部にメイ
ンステイ5に平行な係合ピン7Bが形成されている。突
出片7Aの先端曲面7Cは、所定の直径の円周面になっ
ている。FIG. 1 is a perspective view showing a first embodiment of an ink ribbon cassette attaching / detaching mechanism according to the present invention. In the figure,
The platen 1 faces the print head 2 across the recording paper. The print head 2 has an ink ribbon and prints on recording paper on a platen by the impact force of a wire in the head. The print head 2 is a carrier frame 3
It is fixed to. The carrier frame 3 is supported by structural members of the guide shaft 4 and the main stay 5, and is slidable in the length direction of the guide shaft 4 by the timing belt 6. A ribbon cassette 7 is detachably mounted on the carrier frame 3. A pair of projecting pieces 7A are formed at the rear end of the ribbon cassette 7 on the side of the main stay 5, and an engaging pin 7B parallel to the main stay 5 is formed at the tip of the projecting piece 7A. The tip curved surface 7C of the protruding piece 7A is a circumferential surface having a predetermined diameter.
【0008】図2は、リボンカセット7とキャリアフレ
ーム3との係合部分の拡大側面図である。キャリアフレ
ーム3において係合ピン7Bに対応する部分には、一対
の係合フック3Aがキャリアフレーム3に一体に形成さ
れ、係合ピン7Bをフックしている。係合フック3Aの
外側面で且つ突出片7Aの先端曲面7Cに対向する部分
には、傾斜状突起物3Bが、係合フック3に一体に形成
されている。傾斜状突起物3Bは、傾斜が係合ピン7B
と係合フック3Bとの係合部分に近づくにつれて落ち込
むように形成される。FIG. 2 is an enlarged side view of an engagement portion between the ribbon cassette 7 and the carrier frame 3. A pair of engaging hooks 3A are formed integrally with the carrier frame 3 at portions corresponding to the engaging pins 7B in the carrier frame 3, and hook the engaging pins 7B. An inclined projection 3B is formed integrally with the engaging hook 3 on the outer surface of the engaging hook 3A and at a portion facing the distal end curved surface 7C of the protruding piece 7A. The inclined projection 3B has an inclined engagement pin 7B.
And the hook 3B is formed so as to fall as it approaches the engagement portion with the engagement hook 3B.
【0009】つぎに、リボンカセット7を取り外すとき
の動作について、図3(a)〜(c)と図4(a)〜
(d)を参照して説明する。図3(a)はリボンカセッ
ト7をキャリアフレーム3の上に完全に取り付けたとき
の側面図、図4(a)は図3(a)の一部を示す側面図
である。この状態から、リボンカセット7をプラテンヘ
ッド2の側から持ち上げると、係合ピン7Bを中心にし
て回転し図3(b)の状態になる。リボンカセット7を
さらに持ち上げると、図4(b)、(c)の状態にな
り、インクリボン7の突出片7Aの先端曲面7Cが傾斜
状突起物3Bに接触し、その傾斜面に沿って先端曲面7
Cが滑り、係合ピン7Bが移動する。ここで、傾斜状突
起物3Bの傾斜面は係合ピン7Bと係合フック3Aとの
係合部分に近づくにつれて落ち込むように形成されるの
で、その傾斜面に沿って先端曲面7Cを滑らかに滑り、
係合ピン7Bが係合フック3Aから自然に外れる。そし
て、図4(d)のようにリボンカセット7がキャリアフ
レーム3に垂直になると、係合ピン7Bは係合フック3
Aから完全に外れる。図3(c)は外れた状態を示す。Next, the operation for removing the ribbon cassette 7 will be described with reference to FIGS. 3 (a) to 3 (c) and FIGS. 4 (a) to 4 (a).
This will be described with reference to FIG. FIG. 3A is a side view when the ribbon cassette 7 is completely mounted on the carrier frame 3, and FIG. 4A is a side view showing a part of FIG. 3A. In this state, when the ribbon cassette 7 is lifted from the platen head 2 side, the ribbon cassette 7 rotates about the engaging pin 7B and becomes a state shown in FIG. When the ribbon cassette 7 is further lifted, the state shown in FIGS. 4B and 4C is reached. Curved surface 7
C slides and the engagement pin 7B moves. Here, since the inclined surface of the inclined projection 3B is formed so as to fall as it approaches the engaging portion between the engaging pin 7B and the engaging hook 3A, the tip curved surface 7C slides smoothly along the inclined surface. ,
The engagement pin 7B naturally comes off the engagement hook 3A. When the ribbon cassette 7 is perpendicular to the carrier frame 3 as shown in FIG.
Completely out of A. FIG. 3 (c) shows a state in which it has come off.
【0010】以上のように、リボンカセット7を回転す
るだけで、係合ピン7Bが係合フック3Aから自然に外
れ、また、リボンカセット7を90度以上回転させたと
きには、すでに係合ピン7Bが係合フック3Aから外れ
た状態となるので、係合ピンと係合フックに無理な力が
加わらず破損の恐れがない。As described above, just by rotating the ribbon cassette 7, the engaging pin 7B is naturally released from the engaging hook 3A, and when the ribbon cassette 7 is rotated by 90 degrees or more, the engaging pin 7B has already been rotated. Is disengaged from the engagement hook 3A, so that no excessive force is applied to the engagement pin and the engagement hook, and there is no fear of breakage.
【0011】図5は本発明の第2の実施例を示す斜視図
である。図1では係合時に係合フック3Aが突出片7A
の間(内側)に配置されたが、第2の実施例では係合フ
ック3Aが突出片7A’の外側に配置されている。係合
フック3Aにフックされる係合ピン7B’は突出片7
A’の外側に突出する。また、傾斜状突起物3B’は、
図1の傾斜状突起物3Bの位置と反対側にある。本実施
例も第1の実施例と同じ効果が得られる。FIG. 5 is a perspective view showing a second embodiment of the present invention. In FIG. 1, the engagement hook 3A is in the engagement state with the protruding piece 7A at the time of engagement.
In the second embodiment, the engaging hook 3A is arranged outside the protruding piece 7A '. The engaging pin 7B 'hooked on the engaging hook 3A is
It protrudes outside A '. In addition, the inclined projection 3B '
It is on the side opposite to the position of the inclined projection 3B in FIG. This embodiment also provides the same effects as the first embodiment.
【0012】本願発明は以上説明した実施例に限定され
るものではない。例えば、傾斜状突起物の代わりに、円
筒状の突起物を使用しても良い。この場合、突起物は、
係合フックに係合した係合ピンに向かって落ち込んで傾
斜する面(円筒状突起物の場合は円筒面)を有するもの
であれば、リボンカセットの後端部が、その傾斜面に沿
って滑り、係合ピンを滑らかに外すことができる。ま
た、傾斜状突起物や円筒状突起物などの突起物は、係合
フックに設けられるのではなく、キャリアフレーム3の
上に直接に固定されても良い。The present invention is not limited to the embodiment described above. For example, a cylindrical projection may be used instead of the inclined projection. In this case, the protrusion is
If the ribbon cassette has a surface (a cylindrical surface in the case of a cylindrical projection) which is inclined toward the engagement pin engaged with the engagement hook, the rear end portion of the ribbon cassette may extend along the inclined surface. Slip and the engaging pin can be removed smoothly. In addition, protrusions such as inclined protrusions and cylindrical protrusions may be directly fixed on the carrier frame 3 instead of being provided on the engagement hooks.
【0013】[0013]
【発明の効果】以上説明したように本発明によるリボン
カセット着脱機構は、傾斜面を有する突起物をもうける
ことによって、キャリアフレームの破壊を防ぎ、かつリ
ボンカセットを外しやすくするという効果がある。As described above, the ribbon cassette attaching / detaching mechanism according to the present invention has an effect of preventing the carrier frame from being broken and easily removing the ribbon cassette by forming a projection having an inclined surface.
【図1】本発明の第1の実施例の斜視図である。FIG. 1 is a perspective view of a first embodiment of the present invention.
【図2】図1に示すリボンカセット着脱機構の係合部分
を示す拡大側面図である。FIG. 2 is an enlarged side view showing an engagement portion of the ribbon cassette attaching / detaching mechanism shown in FIG.
【図3】本発明の第1の実施例の動作の流れを示す側面
図である。FIG. 3 is a side view showing an operation flow of the first embodiment of the present invention.
【図4】図3の動作の流れを一部拡大して示した側面図
である。FIG. 4 is a side view showing a partially enlarged flow of the operation in FIG. 3;
【図5】本発明の第2の実施例を示す斜視図である。FIG. 5 is a perspective view showing a second embodiment of the present invention.
【図6】従来例を示す側面図である。FIG. 6 is a side view showing a conventional example.
1 プラテン 2 プリントヘッド 3 キャリアフレーム 3A 係合フック 3B 傾斜状突起部 4 ガイドシャフト 5 メインステイ 6 タイミングベルト 7 リボンカセット 7A 係合ピン DESCRIPTION OF SYMBOLS 1 Platen 2 Print head 3 Carrier frame 3A Engagement hook 3B Inclined protrusion 4 Guide shaft 5 Main stay 6 Timing belt 7 Ribbon cassette 7A Engagement pin
Claims (5)
定するための係合ピンと、前記係合ピンを係合させるた
めの係合フックを有するキャリアフレームとを含むリボ
ンカセット着脱機構において、 前記リボンカセットを前記係合ピンを中心にして一定角
度持ち上げて取り外すとき、リボンカセット後端部と接
触し、前記係合ピンを前記係合フックから遠ざける傾斜
面を有する突起物を有することを特徴とするリボンカセ
ット着脱機構。1. A ribbon cassette attachment / detachment mechanism including an engaging pin for fixing a ribbon cassette to a carrier frame and a carrier frame having an engaging hook for engaging the engaging pin, A ribbon cassette having a projection having an inclined surface that comes into contact with the rear end of the ribbon cassette and lifts the engagement pin away from the engagement hook when the ribbon cassette is lifted and removed at a predetermined angle around the engagement pin. mechanism.
た前記係合ピンに向かって落ち込んで傾斜する面を有す
る傾斜状突起物であることを特徴とする請求項1のリボ
ンカセット着脱機構。2. The ribbon cassette according to claim 1, wherein the projection is an inclined projection having a surface which is inclined toward the engagement pin engaged with the engagement hook. mechanism.
を特徴とする請求項1のリボンカセット着脱機構。3. The ribbon cassette attaching / detaching mechanism according to claim 1, wherein the projection is a cylindrical projection.
形成されたことを特徴とする請求項1のリボンカセット
着脱機構。4. The ribbon cassette attaching / detaching mechanism according to claim 1, wherein the projection is formed integrally with the engaging hook.
起物に接触する面が曲面であることを特徴とする請求項
1のリボンカセット着脱機構。5. The ribbon cassette attachment / detachment mechanism according to claim 1, wherein a surface of the rear end of the ribbon cassette that contacts the protrusion is a curved surface.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7163234A JP2708020B2 (en) | 1995-06-29 | 1995-06-29 | Ribbon cassette attachment / detachment mechanism |
EP96110531A EP0751004A1 (en) | 1995-06-29 | 1996-06-28 | Ribbon cassette attaching/detaching mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7163234A JP2708020B2 (en) | 1995-06-29 | 1995-06-29 | Ribbon cassette attachment / detachment mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0911593A JPH0911593A (en) | 1997-01-14 |
JP2708020B2 true JP2708020B2 (en) | 1998-02-04 |
Family
ID=15769889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7163234A Expired - Fee Related JP2708020B2 (en) | 1995-06-29 | 1995-06-29 | Ribbon cassette attachment / detachment mechanism |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0751004A1 (en) |
JP (1) | JP2708020B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2778141B1 (en) * | 1998-04-30 | 2000-06-09 | Sagem | THERMAL PRINTING DEVICE AND CONSUMABLE CARTRIDGES FOR SAID DEVICE |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4396305A (en) * | 1981-01-22 | 1983-08-02 | Scm Corporation | Ribbon Cartridge handling apparatus |
DE3723507A1 (en) * | 1987-07-16 | 1989-01-26 | Olympia Aeg | Typewriter or similar office machine having a printing mechanism carriage |
JPH01195089A (en) * | 1988-01-29 | 1989-08-04 | Matsushita Electric Ind Co Ltd | Ribbon cassette and printer using the same |
IT1237719B (en) * | 1989-12-21 | 1993-06-15 | Olivetti & Co Spa | CARTRIDGE FOR A WRITING TAPE OF WRITING MACHINES. |
JPH04102867U (en) * | 1991-02-13 | 1992-09-04 | 沖電気工業株式会社 | Impact printer and ink ribbon cassette |
-
1995
- 1995-06-29 JP JP7163234A patent/JP2708020B2/en not_active Expired - Fee Related
-
1996
- 1996-06-28 EP EP96110531A patent/EP0751004A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0751004A1 (en) | 1997-01-02 |
JPH0911593A (en) | 1997-01-14 |
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