JPS58191199A - Manufacture of ball pen tip - Google Patents
Manufacture of ball pen tipInfo
- Publication number
- JPS58191199A JPS58191199A JP57074369A JP7436982A JPS58191199A JP S58191199 A JPS58191199 A JP S58191199A JP 57074369 A JP57074369 A JP 57074369A JP 7436982 A JP7436982 A JP 7436982A JP S58191199 A JPS58191199 A JP S58191199A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- ball
- ink
- pen tip
- hole
- 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.)
- Granted
Links
Landscapes
- Pens And Brushes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はボールペンチップの製造方法に係り、特に金属
細管により形成して耐久性の向上を図ると共にインクの
供給路の設訂がボール径に規制されることなく自在に行
なえるボールペンチップの製造り法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a ballpoint pen tip, and in particular to a method for manufacturing a ballpoint pen tip, in which the tip is formed from a thin metal tube to improve durability and to freely design an ink supply path without being restricted by the diameter of the ball. This article relates to a method for manufacturing a ballpoint pen tip.
金属細管からボールペンチップを製造する方法としては
、金属細管の先端近傍外周面の同一周縁上の複数箇所を
内方向へ押圧して内壁にボールの受座を突出形成し、ボ
ールをこの金属細管の先端部に挿入後、金属細管の先端
縁をカシメ加工して行なうものがある。A method for manufacturing a ballpoint pen tip from a metal capillary is to press inward at multiple locations on the same peripheral edge of the outer peripheral surface near the tip of the metal capillary to form a protruding seat for the ball on the inner wall, and then the ball is inserted into the metal capillary. Some methods involve caulking the tip edge of the metal tube after inserting it into the tip.
しかし、この従来方法によると、金属細管の内径がボー
ル径より僅かに大きい寸法であることが要求されるため
、インク供給芯の大きさもこの金属細管の内径寸法以下
に詞限されていた。従って充分なインクをチップに供給
できず、特に水性ボールペン等の提供にあっては不都合
を有するものであった。However, according to this conventional method, since the inner diameter of the metal thin tube is required to be slightly larger than the ball diameter, the size of the ink supply core is also limited to the inner diameter of the metal thin tube. Therefore, sufficient ink cannot be supplied to the tip, which is particularly inconvenient when providing water-based ballpoint pens and the like.
ぞこて、本発明は上記不都合を解消して充分なインク供
給量を確保し、しかも、耐久性に冨んだ高品質なボール
ペンチップを提供づべく創出されたものであり、その要
旨は金属細管の先端部をその全周にわたって内方向に押
圧して先端に向かうに従い次第に窄まるよう形成して窄
め部を設け、この窄め部の内壁を先端開口方向から孔さ
らいしてボール保持筒部とボール台座部とを形成してボ
ール抱持部を構成し、前記ボール台座部にはインク導入
のための溝を貫通孔に沿って形成し、ボール抱持部にけ
ボールを挿入して後、先端開口縁部をカシメ加工してボ
ールを抱持部に抱持させることに存するものである。The present invention was created to solve the above-mentioned disadvantages, ensure a sufficient amount of ink supply, and provide a high-quality ballpoint pen tip with great durability. The tip of the thin tube is pressed inward over its entire circumference to form a narrowed portion that gradually narrows toward the tip, and the inner wall of this narrowed portion is drilled from the opening direction of the tip to form a ball holding cylinder. A ball holder is formed by forming a ball holder and a ball pedestal, a groove for introducing ink is formed in the ball pedestal along a through hole, and a ball is inserted into the ball holder. After that, the tip opening edge is caulked to hold the ball in the holding part.
以下、図面を参照して本発明の一実施例を説明する。図
において１は金属細管であり、その先端部は第３図に示
すようにその全周にわたって内方向に押圧して先端に向
かうに従い次第に窄まるよう窄め部２を形成する。即ち
、例えば、スェージ加工によって先端に向かうに従い次
第に窄まるよう窄め加工を施して窄め部２を形成する（
第３図参照）。Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a metal thin tube, the distal end of which is pressed inward over its entire circumference to form a narrowed portion 2 that gradually narrows toward the distal end, as shown in FIG. That is, for example, the narrowed portion 2 is formed by performing a narrowing process such that it gradually narrows toward the tip by swaging process (
(See Figure 3).
を後端開口方向から孔さらいし、プラスチック線状体等
で成るインク誘導芯（図示せず）の導入路３を拡開形成
する（第５図参照）。A hole is opened from the direction of the rear end opening, and an inlet passage 3 for an ink guiding core (not shown) made of a plastic linear body or the like is expanded (see FIG. 5).
尚、窄め部２は、第３図に示すような先細り状としたも
のの他に、第４図に示すような段部２Ａを介して小円筒
状としたものでも良く、この場合には、後端開口方向か
らの孔さらい加工が不要となる。In addition to the tapered shape shown in FIG. 3, the narrowed part 2 may have a small cylindrical shape with a stepped part 2A as shown in FIG. 4. In this case, There is no need to perform hole cleaning from the direction of the rear end opening.
このように形成された窄め部２には、ボール保持筒部４
とボール台座部５とを形成すべく窄め部２の内壁を先端
開口１５自から孔さらいする（第６図参照）。The narrowed part 2 formed in this way has a ball holding cylinder part 4.
In order to form a ball seat part 5, a hole is made in the inner wall of the narrowed part 2 from the tip opening 15 (see FIG. 6).
その後、ボール台座部の貫通孔６の孔壁に、複数のイン
ク導入溝７を放射状に位置させて花芯に平行に形成する
（第７図参照）。Thereafter, a plurality of ink introduction grooves 7 are formed radially in the hole wall of the through hole 6 of the ball pedestal, parallel to the flower core (see FIG. 7).
このような窄め加工、孔さらい加工、溝形成加］を杼て
金属細管１はその先端部にボール抱持部８が構成される
ことになる。そして、このボール抱持部８にボール９を
挿入後、先端開口縁を内方向に折曲形成することでカシ
メ加工を行いボールペンチップが得られるのである。Through such narrowing, hole-wiring, and groove-forming processes, the thin metal tube 1 has a ball holding portion 8 at its tip. After inserting the ball 9 into the ball holding portion 8, the opening edge of the tip end is bent inward to perform a caulking process and a ballpoint pen tip is obtained.
本発明は以上のように構成し、金属細管１の先端部を、
その全周にわたって内方向に押圧して先端に向かうに従
い次第に窄まるように形成して窄め部２を設けるから、
金属細管の先端部近傍外周面の一部を内方向に押圧して
内周壁面に台座を突出形成して行う従来のボールペンチ
ップにあった不都合、つまり、金属細管の内径がボール
直径により決定されてしまうといった不都合がない。即
ち、インク必要量に応じたインク誘導芯径で金属細管の
径が選択できるようになる。また、プラスチック線状体
で成るインク誘導芯をできるだｔづ太目の径でボール９
の後端面近くに近ずけることを可能とし、インクの十分
且つ安定した供給が得られる。The present invention is constructed as described above, and the tip of the metal thin tube 1 is
The narrowed portion 2 is provided by pressing inward over the entire circumference and gradually narrowing toward the tip.
This eliminates the disadvantages of conventional ballpoint pen tips, which are made by pressing inward on a part of the outer peripheral surface near the tip of the metal thin tube to form a pedestal protruding from the inner peripheral wall surface.In other words, the inner diameter of the metal thin tube is determined by the ball diameter. There is no inconvenience such as getting stuck. That is, the diameter of the metal capillary tube can be selected based on the diameter of the ink guide core depending on the required amount of ink. In addition, the ink guiding core made of a plastic linear body can be made into a ball 9 with a thick diameter.
This makes it possible to get close to the rear end surface of the ink, thereby providing a sufficient and stable supply of ink.
そして、窄め部２の内壁を先端開口方向から孔さらいし
てボール保持筒部４とボール台座部５とを形成するから
、塑性加工によって形成される窄め部２の内壁面の寸法
８度を向上させ得りインクの安定した供給を担保でき、
しかも内壁面の表面状態を滑らかとしてボール９の転勤
を円滑なものとし書き味の向上が図れる。Then, since the ball holding cylinder part 4 and the ball pedestal part 5 are formed by drilling holes in the inner wall of the narrowed part 2 from the direction of the tip opening, the inner wall surface of the narrowed part 2 formed by plastic working has a dimension of 8 degrees. It can improve the quality of ink and ensure a stable supply of ink.
Moreover, the surface condition of the inner wall surface is smooth, so that the ball 9 can be transferred smoothly, and the writing quality can be improved.
ボール台座部５にはインク導入溝７を貫通孔６に沿って
形成するから、インク誘導芯からのインクの供給を十分
なものとして、インクのカスレ等の発生がない。Since the ink introducing groove 7 is formed in the ball pedestal 5 along the through hole 6, the ink is supplied from the ink guiding core sufficiently, and there is no occurrence of ink smearing or the like.
加えて、金属細管１によって形成するものであるから、
他の合成樹脂等で成るボールペンチップに比較し耐久性
に優れる。In addition, since it is formed by the metal thin tube 1,
Superior durability compared to ballpoint pen tips made of other synthetic resins.
以上説明したように本発明によれば、耐久性の向上が図
れると共にインク供給路の設計がボール直径に規制され
ることなく自在に行なえて安定したインク供給を行なえ
るものであり、高品質なボールペンチップが提供できる
ものである。As explained above, according to the present invention, durability can be improved, and the ink supply path can be freely designed without being restricted by the ball diameter, and stable ink supply can be achieved. This is what a ballpoint pen tip can provide.
図面は本発明の実施例を示すもので、第１図は全体縦断
面図、第２図は第１図のＡ−Ａ線における拡大断面図、
第３図乃至第７図は各工程における金属細管の加工状態
を示すもので、第３図及び第４図は窄め加工を施した状
態での要部縦断面図、第５図は後端開口方向からの孔さ
らい加工を施した状態での要部縦断面図、第６図は先端
開口り向からの孔さらい加工を施した状態での要部縦断
面図、第７図は台座にインク導入孔を形成した状態での
要部縦断面図である。
１・・・・・・金属細管、２・・・・・・窄め部、２Ａ
・・・・・・段部、３・・・・・・導入路、４・・・・
・・ボール保持筒部、５・・・・・・ボール台座部、６
・・・・・・貫通孔、７・・・・・・インク導入溝、８
・・・・・・ボール抱持部、９・・・・・・ボール。The drawings show an embodiment of the present invention; FIG. 1 is an overall vertical sectional view, FIG. 2 is an enlarged sectional view taken along line A-A in FIG. 1, and FIG.
Figures 3 to 7 show the processing state of the metal thin tube in each process. Figures 3 and 4 are longitudinal cross-sectional views of the main part after narrowing, and Figure 5 is the rear end. Figure 6 is a vertical cross-sectional view of the main part with the hole wiped from the opening direction, Figure 6 is a vertical cross-sectional view of the main part with the hole wiped from the direction of the tip opening, and Figure 7 is the pedestal. FIG. 3 is a vertical cross-sectional view of a main part in a state where an ink introduction hole is formed. 1...Metal thin tube, 2...Narrowed portion, 2A
...Stepped portion, 3...Introduction path, 4...
...Ball holding cylinder part, 5...Ball pedestal part, 6
...Through hole, 7...Ink introduction groove, 8
...Ball holding part, 9...Ball.
Claims (1)
圧して先端に向かうに従い次第に窄まるよう形成して窄
め部を設け、この窄め部の内壁を先端開口方向から孔さ
らいしてボール保持筒部°とボール台座部とを形成して
ボール抱持部を構成し、前記ボール台座部にはインク導
入のための溝を貫通孔に沿って形成し、ボール抱持部に
はボールを挿入して後、先端開口縁部をカシメ加工して
ボールを抱持部に抱持させることを特徴とするボールペ
ンチップの製造方法。1. Press the tip of the metal thin tube inward over its entire circumference to form a narrowed portion that gradually narrows toward the tip, and clean the inner wall of this narrowed portion from the opening direction of the tip. A ball holding part is formed by forming a ball holding cylinder part and a ball pedestal part, a groove for introducing ink is formed in the ball pedestal part along a through hole, and a ball holding part is formed with a ball holding part. A method for producing a ballpoint pen tip, which comprises inserting the tip, and then caulking the edge of the tip opening to hold the ball in the holding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57074369A JPS58191199A (en) | 1982-04-30 | 1982-04-30 | Manufacture of ball pen tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57074369A JPS58191199A (en) | 1982-04-30 | 1982-04-30 | Manufacture of ball pen tip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58191199A true JPS58191199A (en) | 1983-11-08 |
| JPS6341756B2 JPS6341756B2 (en) | 1988-08-18 |
Family
ID=13545174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57074369A Granted JPS58191199A (en) | 1982-04-30 | 1982-04-30 | Manufacture of ball pen tip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58191199A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7408318B2 (en) * | 2019-08-28 | 2024-01-05 | 株式会社パイロットコーポレーション | Ballpoint pen refills and ballpoint pens |
-
1982
- 1982-04-30 JP JP57074369A patent/JPS58191199A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6341756B2 (en) | 1988-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3121560U (en) | Touch pen | |
| JP2001171280A (en) | Method for manufacturing ballpoint pen tip | |
| US4722124A (en) | Method of manufacturing the writing tip of a ball point pen | |
| JPS58191199A (en) | Manufacture of ball pen tip | |
| JPS5924556Y2 (en) | Tip of water-based ballpoint pen | |
| JP2002356083A (en) | Tip of ball-point pen or applicator | |
| JPS6139582Y2 (en) | ||
| JPS59143693A (en) | Manufacture of ball pen chip | |
| JP3734529B2 (en) | Nib holding structure | |
| JPH0541912Y2 (en) | ||
| JPH0356385Y2 (en) | ||
| JPH0329181Y2 (en) | ||
| KR100329710B1 (en) | Needle Type Tip for Writing Utensil and Manufacture Method of The Same | |
| JP2583486Y2 (en) | Leading device of mechanical pencil | |
| JP2002326487A (en) | Ball-point pen tip | |
| JPS60104398A (en) | Manufacture of ball pen chip | |
| JP2000203187A (en) | Tip of ball type liquid container | |
| JP2002321482A (en) | Ball-point pen tip and method for manufacturing ball- point pen tip | |
| JPS641101Y2 (en) | ||
| JP2023106581A (en) | Ball point pen | |
| JP2917345B2 (en) | Method of perforating air hole in metal shaft of writing instrument and air hole perforator | |
| JP2585314Y2 (en) | Rod feeding mechanism | |
| JPS633829Y2 (en) | ||
| CA1158603A (en) | Ball-point pen tip and ball-point pen provided with the same | |
| JPH029996Y2 (en) |