JP2607210Y2 - Capillary writing instrument - Google Patents

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】本考案は細管式筆記具に関する。
さらに詳細には、ホルダー部材先端に細管を固着し、該
細管内に針体を摺動自在に配設し、該針体の後部に軸方
向可動のおもり部材を固着した細管式筆記具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capillary writing instrument.
More specifically, the present invention relates to a capillary writing instrument in which a thin tube is fixed to the tip of a holder member, a needle is slidably disposed in the thin tube, and an axially movable weight member is fixed to a rear portion of the needle.

【０００２】[0002]

【従来の技術】従来のこの種の細管式筆記具において、
錘り（おもり部材）の前方移動によってチップ内孔のイ
ンキが小管（細管）内へ集中して押しやられることを防
止する目的で、例えば実公平４−２３０２３号公報に
は、錘りの配置されたチップホルダー（ホルダー部材）
内孔の先端面に環状のインキ抑止孔を凹設してなる構成
が開示されている。2. Description of the Related Art In a conventional capillary writing instrument of this kind,
For the purpose of preventing the ink in the inner hole of the chip from being concentrated and pushed into the small tube (small tube) by the forward movement of the weight (weight member), for example, Japanese Utility Model Publication No. 4-23023 discloses the arrangement of the weight. Chip holder (holder material)
There is disclosed a configuration in which an annular ink suppression hole is formed in a recess at the tip end surface of an inner hole.

【０００３】[0003]

【考案が解決しようとする課題】ところが、前記従来の
構成は、おもり部材が前方へ移動するときの細管先端か
らのインキの飛び出しが防止できるとしても、逆に、イ
ンキ流出性能を低下させることとなった。即ち、筆記面
に細管先端を当接させても即座にインキが出てこなかっ
たり、高速筆記時において筆跡途切れやカスレを発生さ
せた。However, in the above-mentioned conventional structure, even if it is possible to prevent the ink from escaping from the tip of the thin tube when the weight member moves forward, on the contrary, it is necessary to reduce the ink outflow performance. became. That is, even when the tip of the thin tube was brought into contact with the writing surface, the ink did not come out immediately, or the handwriting was interrupted or blurred during high-speed writing.

【０００４】本考案は、前記従来の問題点を解決するも
のであって、おもり部材の前方移動時のインキの飛び出
しを防止するとともに、筆記時に筆跡途切れやカスレの
ないインキ流出性の優れた細管式筆記具を提供しようと
するものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. The present invention is intended to prevent the ink from escaping when the weight member moves forward, and to provide a thin tube which is excellent in ink outflow without breakage or blurring during writing. It is intended to provide a writing instrument.

【０００５】本考案は、ホルダー部材２先端に細管１を
固着し、該細管１内に針体３を摺動自在に配設し、該針
体３の後部に軸方向可動のおもり部材４を固着した細管
式筆記具であって、おもり部材４の先端に前方に開口す
るインキ保溜孔４１を設け、該インキ保溜孔４１の後方
に針体固着部４２を設け、前記インキ保溜孔４１に針体
３が貫挿され、前記インキ保溜孔４１壁部に、インキ保
溜孔４１内部とおもり部材４外部とを連通するインキ導
出部４３を設けたことを要件とするAccording to the present invention, a thin tube 1 is fixed to the tip of a holder member 2, a needle body 3 is slidably disposed in the thin tube 1, and an axially movable weight member 4 is provided at a rear portion of the needle body 3. A fixed tubular writing instrument, which is opened forward at the tip of the weight member 4 .
An ink storage hole 41 is provided, and a needle fixing portion 42 is provided behind the ink storage hole 41. The needle body 3 is inserted through the ink storage hole 41, and the ink storage hole 41 is formed in the wall of the ink storage hole 41. , Ink holder
Ink guide for communicating the inside of the reservoir hole 41 and the outside of the weight member 4
It is a requirement that the protrusion 43 is provided.

【０００６】また、前記インキ保溜孔４１は先端が拡開
状に形成されることが好ましい。この場合、インキ保溜
孔４１先端のみを拡開状に形成する構成だけでなく、針
体固着部４２よりテーパ状に拡開させる構成も有効であ
る。Further, it is preferable that the ink retaining hole 41 is formed such that a tip end thereof is expanded. In this case, not only the configuration in which only the tip of the ink retaining hole 41 is formed in an expanded shape but also a configuration in which the ink retaining hole 41 is expanded in a tapered shape from the needle fixing portion 42 is effective.

【０００７】また、前記インキ導出部４３は、孔、溝、
切り欠き、スリット等の形状が適宜採用される。[0007] In addition, before Symbol ink deriving unit 43, holes, grooves,
Shapes such as notches and slits are appropriately adopted.

【０００８】おもり部材４は、材質は、金属やプラスチ
ック等、適宜であり、また、一部材により構成されても
よいし、あるいは二部材を組み合わせた構成でもよい。
また、針体３とおもり部材４の固着手段は、接着、溶
着、嵌着、カシメ固着等、いずれであってもよい。The weight member 4 may be made of a suitable material such as metal or plastic, and may be composed of one member or a combination of two members.
The means for fixing the needle body 3 and the weight member 4 may be any of adhesion, welding, fitting, and caulking.

【０００９】[0009]

【作用】おもり部材４を前後方向に作動させると、おも
り部材４の先端とホルダー部材２内壁との間のインキ
は、おもり部材４によって前方に押し出されることな
く、おもり部材４先端のインキ保溜孔４１に収容され
る。それにより細管１先端からのインキ飛び出しが防止
される。その上、前記インキ保溜孔４１のインキは、筆
記開始と同時に細管１より吐出され、迅速なインキ導出
を可能としている。また、非筆記時（筆記面に細管１先
端が当接していない状態）では、常にインキ保溜孔４１
にインキが保持されているため、前記インキによってお
もり部材４先端近傍への空気（気泡）の侵入が防御され
る。それにより、高速筆記時においても、筆跡途切れや
カスレを発生させることがなく、潤沢なインキ流出が可
能となる。When the weight member 4 is operated in the front-rear direction, the ink between the tip of the weight member 4 and the inner wall of the holder member 2 is not pushed forward by the weight member 4 and the ink is stored at the tip of the weight member 4. It is accommodated in the hole 41. This prevents ink from jumping out of the tip of the thin tube 1. In addition, the ink in the ink storage hole 41 is discharged from the thin tube 1 at the same time as the start of writing, thereby enabling quick ink discharge. Also, during non-writing (when the tip of the thin tube 1 is not in contact with the writing surface), the ink storage hole 41 is always kept.
Since the ink is held in the space, the ink prevents air (bubbles) from entering near the tip of the weight member 4. Thereby, even at the time of high-speed writing, abundant ink outflow can be achieved without causing breakage or blurring of handwriting.

【００１０】インキ保溜孔４１の先端が拡開状であるこ
とにより、おもり部材４の先端とホルダー部材２内壁と
の間のインキは、おもり部材４の前方移動時、インキ保
溜孔４１内へ素早く誘導されるとともに、より多くのイ
ンキを該インキ保溜孔４１に取り込むことができる。ま
た、インキ導出部４３は、筆記時のインキ流出性能を向
上させる。Since the tip of the ink retaining hole 41 is in an expanded shape, the ink between the distal end of the weight member 4 and the inner wall of the holder member 2 is moved inside the ink retaining hole 41 when the weight member 4 moves forward. , And more ink can be taken into the ink storage hole 41. Further, the ink lead-out unit 43 improves the ink outflow performance during writing.

【００１１】[0011]

【実施例】本考案実施例を図面に従って説明する。（図
１乃至図５参照）BRIEF DESCRIPTION OF THE DRAWINGS FIG. (See FIGS. 1 to 5)

【００１２】軸筒６は、前部にインキ溜め部材５が取り
付けられ、その後方にインキタンク６１が形成されてい
る。前記インキ溜め部材５は、周面に多数の櫛溝が並設
され、インキタンク６１内の圧力上昇に伴う溢出インキ
を一時的に保持する機能を有する従来公知の部材であ
る。前記インキ溜め部材５の前部には、先端に細管１を
固着したホルダー部材２が取り付けられている。また、
前記インキ溜め部材５には、内孔５１が設けられ、該内
孔５１には針体３が前部に固着されたおもり部材４が、
軸方向に摺動自在に配設されている。また、前記ホルダ
ー部材２の内壁には、前記おもり部材４の前部が当接す
る平面状の衝止部２１が形成されている。The shaft cylinder 6 is provided with an ink reservoir 5 at the front, and an ink tank 61 at the rear. The ink reservoir member 5 is a conventionally known member having a number of comb grooves arranged on a peripheral surface thereof and having a function of temporarily holding overflowing ink due to a rise in pressure in the ink tank 61. At the front of the ink storage member 5, a holder member 2 having a thin tube 1 fixed to the tip is attached. Also,
The ink reservoir member 5 is provided with an inner hole 51, in which a weight member 4 having a needle body 3 fixed to a front portion is provided.
It is slidably disposed in the axial direction. The inner wall of the holder member 2 is formed with a planar stopper 21 with which the front part of the weight member 4 contacts.

【００１３】前記おもり部材４は、ステンレススチール
製パイプよりなる内筒４４とポリアセタール樹脂よりな
る外筒４５により構成される。前記内筒４４の前部には
針体固着部４２が形成され、該針体固着部４２におい
て、針体３の後部が該内筒４４前部の内方への押圧変形
によりカシメ固着されている。The weight member 4 includes an inner cylinder 44 made of a stainless steel pipe and an outer cylinder 45 made of a polyacetal resin. A needle fixing portion 42 is formed at a front portion of the inner cylinder 44. At the needle fixing portion 42, a rear portion of the needle 3 is caulked and fixed by inward deformation of the front portion of the inner cylinder 44. I have.

【００１４】また、前記内筒４４の先端は、楔状の押圧
子によって切り欠き状のインキ導出部４３が形成される
とともに、拡開状に変形されて、ホルダー部材２内壁の
衝止部２１との当接部４６が形成されている（図２、図
３、及び図５参照）。前記当接部４６と前記針体固着部
４２との間には、インキ保溜孔４１が設けられ、該イン
キ保溜孔４１に針体３後部外周が接触されている。即
ち、前記インキ保溜孔４１により針体３後部外周に毛細
管力を有するインキ保溜間隙が形成される。前記外筒４
５は、外周に８本のリブ４７が縦設され、素早いインキ
導出を可能にしている。また、前記内筒４４の針体固着
部４２は、外方に膨出しており、該針体固着部４２にお
いて前記外筒４５が嵌着されている（図４参照）。ま
た、前記拡開状の当接部４６は、前記外筒４５の内筒４
４に対する前方移動を防止するストッパとしても機能し
ている。A notch-shaped ink lead-out portion 43 is formed at the tip of the inner cylinder 44 by a wedge-shaped pressing element, and the cut-out ink lead-out portion 43 is expanded and deformed. Are formed (see FIGS. 2, 3, and 5). An ink storage hole 41 is provided between the contact portion 46 and the needle fixing portion 42, and the outer periphery of the rear portion of the needle 3 is in contact with the ink storage hole 41. That is, the ink storage gap 41 having a capillary force is formed on the outer periphery of the rear portion of the needle body 3 by the ink storage hole 41. The outer cylinder 4
In No. 5, eight ribs 47 are vertically provided on the outer periphery to enable quick ink discharge. Further, the needle fixing portion 42 of the inner cylinder 44 bulges outward, and the outer cylinder 45 is fitted to the needle fixing portion 42 (see FIG. 4). The expanded contact portion 46 is provided on the inner cylinder 4 of the outer cylinder 45.
It also functions as a stopper for preventing forward movement with respect to 4.

【００１５】前記外筒４５の後端と前記内孔５１の後端
の間にはコイルスプリング４８が介在され、おもり部材
４が前方へ付勢されている。さらに、前記内筒４４の後
部には、Ｏリング４９が嵌着され、前記コイルスプリン
グ４８の内側を保持している。A coil spring 48 is interposed between the rear end of the outer cylinder 45 and the rear end of the inner hole 51, and the weight member 4 is urged forward. Further, an O-ring 49 is fitted to a rear portion of the inner cylinder 44 to hold the inside of the coil spring 48.

【００１６】[0016]

【考案の効果】本考案は前記構成により、おもり部材の
前方移動時のインキの飛び出しを防止するとともに、筆
記時に筆跡途切れやカスレのないインキ流出性の優れた
細管式筆記具を提供することができる。According to the present invention, it is possible to provide a thin-tube writing instrument having the above-described structure, which prevents the ink from spilling out when the weight member moves forward, and has excellent ink spillability without breakage or blurring during writing. .

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

【図１】本考案の第一実施例の要部縦断面図である。FIG. 1 is a longitudinal sectional view of a main part of a first embodiment of the present invention.

【図２】図１のおもり部材の要部拡大縦断面図である。FIG. 2 is an enlarged longitudinal sectional view of a main part of the weight member of FIG. 1;

【図３】図２のＡ−Ａ線端面図である。FIG. 3 is an end view taken along line AA of FIG. 2;

【図４】図２のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB of FIG. 2;

【図５】図２の内筒先端の外観図である。FIG. 5 is an external view of a tip end of the inner cylinder of FIG. 2;

【符号の説明】[Explanation of symbols]

１ 細管 ２ ホルダー部材 ２１ 衝止部 ３ 針体 ４ おもり部材 ４１ インキ保溜孔 ４２ 針体固着部 ４３ インキ導出部 ４４ 内筒 ４５ 外筒 ４６ 当接部 ４７ リブ ４８ コイルスプリング ４９ Ｏリング ５ インキ溜め部材 ５１ 内孔 ６ 軸筒 ６１ インキタンク DESCRIPTION OF SYMBOLS 1 Narrow tube 2 Holder member 21 Stop part 3 Needle 4 Weight member 41 Ink storing hole 42 Needle fixing part 43 Ink lead-out part 44 Inner cylinder 45 Outer cylinder 46 Contact part 47 Rib 48 Coil spring 49 O-ring 5 Ink reservoir Member 51 Inner hole 6 Shaft cylinder 61 Ink tank

Claims (2)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】ホルダー部材２先端に細管１を固着し、該
細管１内に針体３を摺動自在に配設し、該針体３の後部
に軸方向可動のおもり部材４を固着した細管式筆記具に
おいて、おもり部材４の先端に前方に開口するインキ保
溜孔４１を設け、該インキ保溜孔４１の後方に針体固着
部４２を設け、前記インキ保溜孔４１に針体３が貫挿さ
れ、前記インキ保溜孔４１壁部に、インキ保溜孔４１内
部とおもり部材４外部とを連通するインキ導出部４３を
設けたことを特徴とする細管式筆記具。1. A thin tube 1 is fixed to the tip of a holder member 2, a needle 3 is slidably disposed in the thin tube 1, and an axially movable weight member 4 is fixed to a rear portion of the needle 3. In the thin-tube type writing instrument, an ink reservoir hole 41 which opens forward is provided at the tip of the weight member 4, a needle fixing portion 42 is provided behind the ink reservoir hole 41, and the needle 3 is inserted into the ink reservoir hole 41. Is inserted into the wall of the ink storage hole 41,
The ink lead-out section 43 that communicates the section with the outside of the weight member 4
A capillary writing instrument characterized by being provided . 【請求項２】前記インキ保溜孔４１の先端が拡開状に形
成されたことを特徴とする請求項１記載の細管式筆記
具。2. The thin-tube writing implement according to claim 1, wherein the tip of the ink storage hole 41 is formed in an expanded shape.