JP2529991Z - - Google Patents
Info
- Publication number
- JP2529991Z JP2529991Z JP2529991Z JP 2529991 Z JP2529991 Z JP 2529991Z JP 2529991 Z JP2529991 Z JP 2529991Z
- Authority
- JP
- Japan
- Prior art keywords
- ribbon
- ink ribbon
- spring member
- cassette
- lid
- 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.)
- Active
Links
- 230000003578 releasing Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 210000000614 Ribs Anatomy 0.000 description 8
- 238000005452 bending Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Description
【考案の詳細な説明】
【0001】
【産業上の利用分野】
本考案はワ−プロ用のプリンタに熱転写インキリボンを走行させるリボンカセ
ットに関する。
【0002】
【従来の技術】
近来、ワ−ドプロセッサ等に熱転写インキリボンが広く使われるようになって
きた。しかし、この熱転写用のインキリボンをリボンカセットに装着したり、新
しいリボンを入れ替えたりするとき、極く薄いフィルム上に熱転写インキを塗布
した弾性のないリボンを、テンションばねを指で押し拡げながらその隙間に通す
作業はわずらわしく、かつ、手指の汚れる作業であった。また、手指でテンショ
ンばねを押し拡げるため、テンションばねの変形や紛失がしばしば発生した。ま
た、その対策としてテンションばねを係止部に係止させるものもあるが、蓋を取
付けるとき、その係止を外し忘れてテンションなしでリボンを走行させてしまう
ことがあり、そのためにプリンタを破損する事故もしばしばあった。
【0003】
【考案が解決しようとする課題】
本考案は、新しい熱転写インキリボンをリボンカセットに装着したり入れ替え
たりするとき、手指でテンションばねを押し拡げながらその隙間にリボンを通す
ようなことがなく、したがって、テンションばねの変形や紛失を防げるとともに
、蓋をしたときテンションばねの係止が自動的に外されて、外し忘れてテンショ
ンなしで印字を行うことが防止できるリボンカセットの提供を目的とする。
【0004】
【課題を解決するための手段】
本考案は前記課題を解決するため、リボンカセットの構造を、2つの開口部を
有するカセット本体と蓋体からなり、カセット本体に巻き取りコアと供給コアを
設け、両コアにインキリボンを張り渡して開口部で露出させヘッドで印字させる
リボンカセットにおいて、2つの開口部間に一端部を固定し他端部を自由端とし
た板状のバネ部材を設け、その自由端部で走行中のインキリボンをくの字状に変
形させつつテンションを与え、カセット本体の底面にバネ部材の自由端部をイン
クリボンから離間して係止する係止部材を立設するとともに、蓋体にバネ部材の
自由端部を係止部材の係止から解除するリブを立設してなる、構成とした。
【0005】
【作用】
本考案によれば、供給コアから繰り出されたリボンは、2つの開口部を通って
巻き取りコアに巻き取られるが、一方の開口部でサ−マルヘッドにより印字され
るとともに、インクリボンは板状バネ部材の自由端部によりくの字状に変形させ
られつつテンションを与えられインクリボンの弛みも吸収できる。蓋体を外した
ときは、バネ部材の自由端部を係止部材に係止させてリボンから離間させるよう
にし、蓋体を本体に取付けたときは蓋体に立設したリブでバネ部材の自由端部を
押圧して係止を自動的に外し、インキリボンにテンションとともに弛み取りの作
用を与えるようにしてある。
【0006】
本考案におけるバネ部材と係止部材の係止は、バネ部材の先端部を湾曲部等の
係止可能な形状にして係止部材に係止させるが、係止部材は底面から立設したロ
ッド状のものでもよく、また、そのロッドの側面に突片を平行に突設し、その突
片に係止させてもよい。また、リブはその先端部をテ−パ−状にすると作用がよ
りスム−ズとなる。
【0007】
【実施例】
次に本考案の実施例を図面により説明する。図1〜図3の実施例において、1
は2つの開口部2を有するカセット本体、3はカセット本体と外形同形の蓋体で
、カセット本体1には巻き取りコア4と供給コア5を設けて熱転写用のインキリ
ボン6を巻き回し張り渡してある。インキリボン6はプリンタ本体(図示せず)
の駆動力により供給コア5からカセット本体1の底面より立設したピン7、2つ
の開口部2を経て巻き取りコア4に走行する。
【0008】
2つの開口部2,2間には、板ばねよりなるバネ部材8と係止部材9を設け、
バネ部材8はその先端部に湾曲部10を設けて、張り渡されたインキリボン6を湾
曲部10の外面で常時外方に押圧するように形成してある。係止部材9はカセット
本体1の底面から立設したロッド状をなし、そのロッド状の側面に突片11を平行
に突設してある。係止部材9は、バネ部材8の湾曲部10が突片11に係止可能とな
るようにしてあり、バネ部材8が係止したとき湾曲部がインキリボン6から一定
距離だけ離間するようにしてある。
【0009】
蓋体3には先端テ−パ−状をなすリブ12が立設してあり、リブ12は、その長さ
をカセット本体1の高さより短くし、その位置を係止部材9に係止しているバネ
部材8を内方から押圧してその係止を解除できるような位置としてある。
【0010】
本実施例のリボンカセットで印字を行うには、蓋体3をカセット本体1に取付
けると、リブ12が係止部材9に係止しているバネ部材8の湾曲部10を外方へ押圧
するので、バネ部材8の係止は自動的に係止部材9から外されてインキリボン6
を押圧しテンションを与える。この状態のカセットをプリンタ(図示せず)に装
着し、インキリボン6を走行させ、開口部9を通過するインキリボン6にサ−マ
ルヘッド(図示せず)を当てて外側のプラテン上にある被印字紙(ともに図示せ
ず)に印字する。
【0011】
本実施例のリボンカセットに両コアに巻き回された熱転写用のインキリボン6
を装着したり、新しいものを入れ替えたりするときは、カセット本体1から蓋体
3を外し、新しいリボン6を巻き回した両コア4,5をセットした後、バネ部材
8の湾曲部10を係止部材9の突片11に係止させると、バネ部材8はインキリボン
6(走行路)との間に一定の間隔が形成できるので、その間隔にインキリボン6
を容易に通すことができる。
【0012】
【考案の効果】
本考案のリボンカセットは、新しい熱転写インキリボンをリボンカセットに装
着したり入れ替えたりするとき、手指でテンションばねを押し拡げながらその隙
間にリボンを通すようなことがなく係止でき、したがって、テンションばねの変
形や紛失が防止でき、一定のトルクが保てる。また、蓋をしたときはテンション
ばねの係止が自動的に外れるようになっているので、外し忘れてテンションなし
の印字が行われることを防止できる。その上、板バネの自由端部で走行中のイン
クリボンをくの字状に変形させつつテンションを掛けるので、インキリボンの弛
みをも吸収できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ribbon cassette for running a thermal transfer ink ribbon on a printer for word processing. 2. Description of the Related Art In recent years, thermal transfer ink ribbons have been widely used in word processors and the like. However, when installing the ink ribbon for thermal transfer in the ribbon cassette or replacing a new ribbon, the inelastic ribbon coated with thermal transfer ink on an extremely thin film is stretched by pushing the tension spring with a finger. The work of passing through the gap was troublesome, and also the work of soiling the fingers. In addition, since the tension spring is pushed and spread with fingers, the tension spring is often deformed or lost. As a countermeasure, some tension springs are locked to the locking part.However, when attaching the lid, the ribbon may run without tension due to forgetting to release the lock, which may damage the printer. Often there were accidents. [0003] In the present invention, when a new thermal transfer ink ribbon is mounted on or replaced with a ribbon cassette, the tension spring may be pushed and expanded with fingers to pass the ribbon through the gap. Therefore, the purpose of the present invention is to provide a ribbon cassette which can prevent the tension spring from being deformed or lost and, when the cover is closed, the tension spring is automatically released from being locked, thereby preventing printing without tension due to forgetting to remove the tension spring. And [0004] In order to solve the above-mentioned problems, the present invention provides a structure of a ribbon cassette comprising a cassette body having two openings and a lid, and a winding core and a supply core are provided on the cassette body. In a ribbon cassette in which a core is provided, an ink ribbon is stretched over both cores, and exposed at an opening, and printing is performed by a head, a plate-shaped spring member having one end fixed between two openings and the other end free. A locking member that applies tension while deforming the running ink ribbon into a U-shape at its free end, and locks the free end of the spring member on the bottom surface of the cassette body away from the ink ribbon. And a rib is provided on the lid to release the free end of the spring member from the locking of the locking member. According to the present invention, the ribbon fed from the supply core is taken up by the take-up core through two openings, and is printed by the thermal head in one of the openings. The ink ribbon is given a tension while being deformed in the shape of a letter by the free end of the plate-shaped spring member, so that the slack of the ink ribbon can be absorbed. When the lid is removed, the free end of the spring member is locked by the locking member so as to be separated from the ribbon, and when the lid is attached to the main body, the spring member is erected on the lid by a rib standing upright on the lid. The free end is pressed to release the lock automatically, so that the ink ribbon is given a tension-releasing action together with the tension. In the present invention, the spring member and the locking member are locked by making the distal end of the spring member a shape such as a curved portion that can be locked, and locking the locking member with the locking member. A rod may be provided, or a protruding piece may be protruded in parallel on the side surface of the rod and locked to the protruding piece. When the tip of the rib is tapered, the operation becomes smoother. Next, an embodiment of the present invention will be described with reference to the drawings. In the embodiment of FIGS.
Is a cassette body having two openings 2, and 3 is a lid having the same outer shape as the cassette body. The cassette body 1 is provided with a take-up core 4 and a supply core 5, and the ink ribbon 6 for thermal transfer is wound and stretched. It is. The ink ribbon 6 is a printer body (not shown)
With the driving force described above, the supply core 5 travels to the take-up core 4 through the pins 7 erected from the bottom of the cassette body 1 and the two openings 2. A spring member 8 composed of a leaf spring and a locking member 9 are provided between the two openings 2, 2.
The spring member 8 is provided with a curved portion 10 at its distal end so that the stretched ink ribbon 6 is constantly pressed outward on the outer surface of the curved portion 10. The locking member 9 is in the form of a rod standing upright from the bottom surface of the cassette body 1, and a protruding piece 11 is protruded in parallel from the rod-shaped side surface. The locking member 9 is configured such that the curved portion 10 of the spring member 8 can be locked to the protruding piece 11, and the curved portion is separated from the ink ribbon 6 by a certain distance when the spring member 8 is locked. It is. A rib 12 having a tapered tip shape is erected on the lid 3. The length of the rib 12 is shorter than the height of the cassette body 1, and the position of the rib 12 is set to the locking member 9. The position is such that the locked spring member 8 can be pressed from inside to release the lock. In order to perform printing with the ribbon cassette of this embodiment, when the cover 3 is attached to the cassette body 1, the curved portion 10 of the spring member 8 in which the rib 12 is locked to the locking member 9 is moved outward. The spring member 8 is automatically released from the locking member 9 and the ink ribbon 6
To give tension. The cassette in this state is mounted on a printer (not shown), the ink ribbon 6 is run, and a thermal head (not shown) is applied to the ink ribbon 6 passing through the opening 9 to cover the ink ribbon 6 on the outer platen. Print on printing paper (both not shown). The ink ribbon 6 for thermal transfer wound around both cores in the ribbon cassette of the present embodiment.
When attaching a new one or replacing a new one, remove the cover 3 from the cassette body 1, set the two cores 4 and 5 around which the new ribbon 6 is wound, and then engage the bending portion 10 of the spring member 8. When the spring member 8 is locked to the protruding piece 11 of the stop member 9, a certain interval can be formed between the spring member 8 and the ink ribbon 6 (travel path).
Can be easily passed through. According to the ribbon cassette of the present invention, when a new thermal transfer ink ribbon is mounted on or replaced in the ribbon cassette, the ribbon is not pushed through the gap while pushing and expanding the tension spring with fingers. It can be locked, so that deformation and loss of the tension spring can be prevented, and a constant torque can be maintained. In addition, when the lid is closed, the locking of the tension spring is automatically released, so that it is possible to prevent printing without tension due to forgetting to remove the tension spring. In addition, since the tension is applied while deforming the running ink ribbon at the free end of the leaf spring into a U-shape, the slack of the ink ribbon can be absorbed.
【図面の簡単な説明】 【図1】 本考案の実施例の組み立て状態を示す斜視図である。 【図2】 同実施例で蓋を外した状態の平面図である。 【図3】 同実施例で蓋を取付けた状態の平面断面図である。 【符号の説明】 1 カセット本体 2 開口部 3 蓋体 4 巻き取りコア 5 供給コア 6 インキリボン 8 バネ部材 9 係止部材 10 湾曲部 12 リブ[Brief description of the drawings] FIG. FIG. 3 is a perspective view showing an assembled state of the embodiment of the present invention. FIG. 2 It is a top view in the state where the lid was removed in the example. FIG. 3 It is a plane sectional view in the state where a lid was attached in the example. [Explanation of symbols] 1 cassette body 2 opening 3 Lid 4 Rewind core 5 Supply core 6 Ink ribbon 8 Spring member 9 Locking member 10 Curved section 12 ribs
Claims (1)
らなり、カセット本体(1)に巻き取りコア(4)と供給コア(5)を設け、両
コア(4),(5)にインキリボン(6)を張り渡して開口部(2)で露出させ
ヘッドで印字させるリボンカセットにおいて、2つの開口部(2)間に一端部を
固定し他端部を自由端とした板状のバネ部材(8)は、その他端部に湾曲部(1
0)を備え、その湾曲部(10)の外面で走行中の張り渡されたインクリボン(
6)を常時外方に押圧してくの字状に変形させつつテンションを与えるように設
けられ、カセット本体(1)の底面にバネ部材(8)の自由端部をインクリボン
(6)から離間して係止する係止部材(9)を立設するとともに、蓋体(3)に
バネ部材(8)の自由端部を係止部材(9)の係止から解除するリブ(12)を
立設してなる、リボンカセット。[Claim 1] A cassette body (1) having two openings (2) and a lid (3), and a winding core (4) and a supply core are supplied to the cassette body (1). In a ribbon cassette in which a core (5) is provided, an ink ribbon (6) is stretched over both cores (4) and (5), and is exposed at an opening (2), and printing is performed by a head, between two openings (2). A plate-shaped spring member (8) having one end fixed to the other end and the other end free is provided with a curved portion (1 ) at the other end.
0), and the stretched ink ribbon () running on the outer surface of the curved portion (10).
6) is set so that the tension is always applied while pressing the
Vignetting, with erected the locking member (9) for engaging spaced apart from the ink ribbon to the free end of the spring member (8) on the bottom surface of the cassette body (1) (6), the lid (3) A rib (12) for releasing the free end of the spring member (8) from the locking of the locking member (9).
Family
ID=
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