JP2010052310A - Manufacturing method for cylindrical pen of fountain pen - Google Patents

Manufacturing method for cylindrical pen of fountain pen Download PDF

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JP2010052310A
JP2010052310A JP2008220622A JP2008220622A JP2010052310A JP 2010052310 A JP2010052310 A JP 2010052310A JP 2008220622 A JP2008220622 A JP 2008220622A JP 2008220622 A JP2008220622 A JP 2008220622A JP 2010052310 A JP2010052310 A JP 2010052310A
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pen
tip
manufacturing
cylindrical
cylindrical body
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Kazutaka Ishiguro
一隆 石黒
Tomoatsu Onishi
智温 大西
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Pilot Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for forming a metallic cylindrical body into a cylindrical pen of a mountain pen capable of manufacturing without many steps, shortening the manufacturing time for manufacturing one pen compared with a conventional manufacturing method, and reducing maintenance for wear of a processing apparatus or a tool. <P>SOLUTION: The metallic cylindrical body 2 as a processing material is manufactured having a tip end side 3 formed to be tapered, and a splitting and opening adjustment part 4 of a face formed at a curvature larger than that of the cylindrical body 2 provided on a one side portion of the tip end side 3. The cylindrical body 2 is formed by forming an extending piece 14 extending in the axial direction of the cylindrical body 2 in a connected shape on a tip end 13a of a pen tip 13 by cutting off an extra portion. The extending piece 14 is cut in a substantially U shape configured of a tip end cut part 16, and side cut parts 18a, 18b and removed by press working to form the cylindrical pen 1 of the fountain pen. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、金属製の筒体を万年筆の筒状ペンに製造する、万年筆の筒状ペンの製造方法に関する。   The present invention relates to a method for manufacturing a fountain pen cylindrical pen, in which a metal cylinder is manufactured into a fountain pen cylindrical pen.

万年筆のペン先として、先細りとした金属製の筒体の一端に切割部を設けて先方側をペン先部とし、後方側をペン先部を有した前軸部とした筒状ペンは知られている。筒状ペンは、漸次小径に形成した筒体の小径部の片側を切除して反対側をペン先部とするものであり、実開昭５６−１１３８７５号公報等により知られている。   As a pen tip of a fountain pen, a cylindrical pen is known in which a slit portion is provided at one end of a tapered metal cylinder, the tip side is a pen tip portion, and the rear side is a front shaft portion having a pen tip portion. ing. The cylindrical pen is one in which one side of a small diameter portion of a cylindrical body gradually formed to have a small diameter is cut off and the opposite side is used as a pen tip portion, and is known from Japanese Utility Model Laid-Open No. 56-113875.

実開昭５６−１１３８７５号公報により開示されている技術は、筒状ペンにおいては、ペン先部の上面は、曲率が小さく幅の狭いペン先部となり、ペン先部に設けたインキ通路となる切割部は、筆圧により容易に開きやすく、開きすぎると切割部の毛管作用の働きがなくなり、インキの引出しが行えなくなるという問題があり、こうした問題を解決するために、先細りとなした筒体の一端に切割部を設けたペン先部を形成してなる万年筆の筒状ペンにおいて、前記筒体の上面部の少なくとも前記切割部閉鎖端より先端に平面または前記筒体の筒状部分より曲率半径の大きい曲面となして形成した切割開き調整部を設けるというものである。   In the technique disclosed in Japanese Utility Model Laid-Open No. 56-113875, in the cylindrical pen, the upper surface of the pen tip portion becomes a pen tip portion having a small curvature and a narrow width, and an ink passage provided in the pen tip portion. The cutting part is easy to open by writing pressure, and if it opens too much, there is a problem that the capillary action of the cutting part will be lost and ink drawing will not be possible, and in order to solve such problems, a tapered cylinder In the cylindrical pen of the fountain pen formed by forming a pen tip portion provided with a split portion at one end of the tube, at least the cutting portion closed end of the upper surface portion of the cylindrical body from the flat surface or the curvature of the cylindrical portion of the cylindrical body A slit opening adjusting portion formed as a curved surface having a large radius is provided.

ところで万年筆の筒状ペンは、従来では、先細りとした金属製の筒体の先端部をプレス加工によりペン先の形状に形成していた。この時の製造工程について図１〜図３および図８〜図１２を用いて簡単に説明すると、先ず、金属製の先端を閉塞した筒体２を、プレス加工等により、先端側を先細りに形成し、前方部３の片側の部分に、筒体の曲率より大きい曲率の曲面で形成した切割開き調整部４を設け、後方部５を前軸部６としての外径寸法に形成して、加工素材としての筒体２とする。後の各工程で作業を行なう際に筒体１の位置だしの基準とすべく、筒体２の後方の開口端部７には切欠部８を設けてある。   By the way, the cylindrical pen of the fountain pen has conventionally formed the tip of the tapered metal cylinder into the shape of the pen tip by pressing. The manufacturing process at this time will be briefly described with reference to FIG. 1 to FIG. 3 and FIG. 8 to FIG. 12. First, the cylindrical body 2 with the metal tip closed is formed by tapering the tip side. Then, a slit opening adjusting portion 4 formed by a curved surface having a curvature larger than the curvature of the cylindrical body is provided on one side portion of the front portion 3, and the rear portion 5 is formed to have an outer diameter dimension as the front shaft portion 6. Let it be the cylinder 2 as a raw material. A cutout 8 is provided at the open end 7 at the rear of the cylinder 2 so that the position of the cylinder 1 can be used as a reference when performing operations in the subsequent processes.

前記加工素材としての筒体２を、プレス加工を施してペン先部の形状に形成していく工程としては、先ず、図８に示すように、加工素材としての筒体２の前方部３の切割開き調整部４と反対側の側面１０１に、プレス加工により軸心方向に延びた下孔１０２を形成した加工筒体１０３を形成する。次の工程として、図９に示すように、切割開き調整部４の部分に貫通孔（ハート孔）１２を形成した加工筒体１０４を形成する。次の工程において、前記加工体１０４の切割開き調整部４を上面とした際の横方向より、プレス加工により先端の閉塞部９を残してペン先部１０となる部分以外の第１のサイドの部分１０５を切除して、図１０に示すような形状の加工筒体１０６を形成する。次の工程において、前記加工筒体１０６を切割開き調整部４の対向した方向より、プレス加工により前記閉塞部９を切除するとともにペン先部１０の幅方向のサイドの部分１０７ａ、１０７ｂを切除して、側縁辺１０８を図１１に示すように曲線状に形成した加工筒体１０８を形成する。   As a process of forming the cylindrical body 2 as the processing material into the shape of the pen tip portion by pressing, first, as shown in FIG. 8, the front portion 3 of the cylindrical body 2 as the processing material is formed. A processed cylinder 103 is formed on the side surface 101 opposite to the slit opening adjusting portion 4 by forming a prepared hole 102 extending in the axial direction by pressing. As a next step, as shown in FIG. 9, a processed cylinder 104 in which a through hole (heart hole) 12 is formed in the parting adjustment part 4 is formed. In the next step, from the lateral direction when the slit opening adjusting portion 4 of the processed body 104 is set as the upper surface, the first side of the first side other than the portion which becomes the pen tip portion 10 by leaving the closed portion 9 by pressing is left. The portion 105 is cut away to form a processed cylinder 106 having a shape as shown in FIG. In the next step, from the direction in which the cut cylinder 106 is opposed to the slit opening adjusting portion 4, the closing portion 9 is cut by pressing and the side portions 107 a and 107 b in the width direction of the pen tip portion 10 are cut. Then, the processed cylinder 108 is formed in which the side edge 108 is formed in a curved shape as shown in FIG.

前の工程における加工筒体１０４へのプレス加工方向と本工程における加工筒体１０６へのプレス加工方向の違いから、図１１に示すように、本工程におけるペン先部１０の曲線状の側縁辺１０９と前の工程におけるサイドの部分１１を切除した際に形成された前軸部６の前方縁辺１１０とでズレ部１１１が形成されてしまうので、最後に、前記ズレ部１１１を研磨して除去し、図１２に示すような、万年筆の筒状ペン１を形成する。   From the difference between the pressing direction to the processed cylinder 104 in the previous step and the pressing direction to the processed cylinder 106 in the present step, as shown in FIG. 11, the curved side edge of the pen tip portion 10 in the present step 109 and the front edge 110 of the front shaft portion 6 formed when the side portion 11 in the previous step is cut out, and thus a misalignment 111 is formed. Finally, the misalignment 111 is removed by polishing. And the cylindrical pen 1 of a fountain pen as shown in FIG. 12 is formed.

前記に述べたように、金属製の筒体から万年筆の筒状ペン１を製造するには、従来のプレス加工では多くの工程を必要とし、工程数が増えれば増える程、次工程への加工筒体の移動に係る時間のロスや、管理に係るコストが生じてしまうという問題があった。また、当然にプレス加工する際のプレス型も多くなり、プレス型の磨耗等によるメンテナンスも費用と時間が掛かるという問題があった。さらに、前記ズレ部１０９を研磨して最終的な万年筆の筒状ペン１に仕上げるには熟練した技術が必要となり、人材の確保という点でも問題となるが、単位時間あたりの仕上がり個数も多いものではなかった。
実開昭５６−１１３８７５号公報 As described above, in order to manufacture the fountain pen cylindrical pen 1 from the metal cylinder, many processes are required in the conventional press working, and the more the number of processes increases, the more the processing to the next process becomes. There was a problem that a time loss related to the movement of the cylinder and a cost related to the management occurred. Of course, the number of press dies at the time of pressing increases, and there is a problem that the maintenance due to wear of the press dies takes cost and time. Furthermore, in order to polish the misalignment portion 109 and finish it into the final cylindrical pen 1 of the fountain pen, skillful technology is required, which is problematic in terms of securing human resources, but the number of finished products per unit time is also large. It wasn't.
Japanese Utility Model Publication No. 56-113875

本発明は、先端側を先細りに形成し、先端側の片側の部分に平面または先端側部分の曲率より大きい曲面とした切割開き調整部を設けた金属製の筒体を万年筆の筒状ペンに形成する製造方法において、多くの工程を必要とせず、従来の製造方法に比べて、一つを製造する製造時間も短縮でき、加工装置や工具の磨耗等によるメンテナンスも軽減できる製造方法を提供するものである。   The present invention provides a fountain pen with a cylindrical tube made of a fountain pen that has a tapered end and a slit opening adjusting portion that has a flat surface or a curved surface larger than the curvature of the tip side portion on one side of the tip side. In the manufacturing method to be formed, a manufacturing method that does not require many steps, can reduce the manufacturing time for manufacturing one as compared with the conventional manufacturing method, and can reduce maintenance due to wear of a processing apparatus or a tool is provided. Is.

本発明は、
「１．先端側を先細りに形成した金属製の筒体を、前方にペン先部を後方に前軸部を一体に形成してなる万年筆の筒状ペンに形成する製造方法であって、下記の工程を有することを特徴とする万年筆の筒状ペンの製造方法。
ａ：レーザー加工により、先細りの先端部のペン先部となる部分のサイドの部分を切除し、ペン先部となる部分の先端に筒体の軸心方向に延出した延出片を設けた、略ペン先部を形成する工程、
ｂ：プレス加工により、前記延出片を、ペン先部の先端を形成するための先端切断部とペン先の幅方向の側辺を形成するための側辺切断部とで構成される略コ字型状に切断して除去し、ペン先部を形成する工程。
２．前記１項に記載の万年筆の筒状ペンの製造方法において、前記ａ：の工程で、レーザー加工により略ペン先部の上面に貫通孔を設けてなる、万年筆の筒状ペンの製造方法。」
である。 The present invention
“1. A manufacturing method for forming a metal cylinder having a tapered tip end into a cylindrical pen of a fountain pen formed by integrally forming a pen tip portion at the front and a front shaft portion at the rear, The manufacturing method of the cylindrical pen of a fountain pen characterized by having the process of.
a: By laser processing, the side portion of the portion that becomes the pen tip portion of the tapered tip portion is cut out, and an extending piece that extends in the axial direction of the cylindrical body is provided at the tip portion of the portion that becomes the pen tip portion. A step of forming a substantially nib portion;
b: By pressing, the extended piece is formed of a substantially cutting edge formed by a tip cutting part for forming the tip of the pen tip part and a side cutting part for forming the side of the pen tip in the width direction. A step of cutting and removing into a letter shape to form a pen tip.
2. 2. The method for manufacturing a fountain pen cylindrical pen according to claim 1, wherein in the step a :, a penetrating hole is provided in the upper surface of the substantially pen tip portion by laser processing. "
It is.

本発明において、略ペン先部とは、最終的な形状のペン先部ではなく、最終形状の手前の状態のペン先部をいう。   In the present invention, the substantially nib portion refers to the nib portion in the state before the final shape, not the nib portion of the final shape.

本発明は、金属製の筒体から万年筆の筒状ペンに形成する製造方法を、従来のプレス加工の技術に変えてレーザー加工を用いた技術により製造する方法である。レーザー光を用いて、鉄、非鉄、セラミックス、プラスチックス等に自由曲線切断や穴あけ等の加工を行なうレーザー加工技術は知られており、多方面で利用されている。万年筆の筒状ペンの製造方法に利用することに困難さはない。しかし、本発明の万年筆の筒状ペンを実際に万年筆のペン先として使用するには、この後に、筒状ペンのペン先部の先端にペンポイントとなる金属製の玉を熔着して筆記部を形成する必要がある。しかし、レーザー加工により切断した切断面は、プレス加工により切断した切断面より凹凸状態が荒く、それが理由かは定かではないが、ペン先の先端に玉を熔着しても、玉に衝撃が与えられると玉が容易にペン先の先端から脱落してしまうという問題があることが判った。   The present invention is a method for manufacturing a cylindrical pen of a fountain pen from a metal cylinder by a technique using laser processing instead of the conventional press processing technique. Laser processing techniques that perform processing such as free-curve cutting and drilling on iron, non-ferrous metals, ceramics, plastics, etc. using laser light are known and are used in many fields. There is no difficulty in using it for the manufacturing method of the cylindrical pen of a fountain pen. However, in order to actually use the fountain pen cylindrical pen of the present invention as a fountain pen nib, a metal ball serving as a pen point is welded to the tip of the nib portion of the cylindrical pen. It is necessary to form a part. However, the cut surface cut by laser processing is rougher than the cut surface cut by press processing, and it is not clear why this is the case, but even if a ball is welded to the tip of the pen tip, it will impact the ball. It was found that there was a problem that the ball easily dropped from the tip of the nib when given.

上記問題を解消するには、レーザー加工した部分の面を、研磨等して切断面の凹凸状態を改善すればすむが、本発明者達が種々検討した結果、作業性等を考慮するとペン先の先端のペンポイントとなる玉を熔着する部分を、プレス加工により形成することが作業面で容易であり、作業工程も複雑とならず好適であることが判った。したがって、ペン先部の先端に筒体の軸心方向に延出した延出片を設け、プレス加工によりペン先部の先端部を形成することが重要となる。さらに、ペン先の先端にペンポイントとなる玉を熔着する部分は、ペン先の先端面だけでなく、ペン先の幅方向の側面にも熔着するので、延出片を、ペン先部の先端を形成するための先端切断部とペン先の幅方向の側辺を形成するための側辺切断部とで構成される略コ字型状に切断して除去することは重要となる。   In order to solve the above problem, it is only necessary to improve the uneven state of the cut surface by polishing the surface of the laser processed part. However, as a result of various investigations by the present inventors, the pen tip is taken into consideration. It has been found that it is easy on the work surface to form a portion for welding a ball to be a pen point at the tip of the work, and it is preferable that the work process is not complicated. Therefore, it is important to provide an extended piece extending in the axial direction of the cylinder at the tip of the pen tip, and to form the tip of the pen tip by pressing. Furthermore, the part where the ball that becomes the pen point is welded to the tip of the pen tip is welded not only to the tip surface of the pen tip, but also to the side surface in the width direction of the pen tip. It is important to cut and remove it into a substantially U-shape formed by a tip cutting portion for forming the tip of the tip and a side cutting portion for forming the side in the width direction of the pen tip.

本発明は前記したような構造なので、多くの工程を必要とせずに製造でき、従来の製造方法に比べて、一つを製造する製造時間も短縮でき、加工装置や工具の磨耗等によるメンテナンスも軽減できる。   Since the present invention has the structure as described above, it can be manufactured without requiring many steps, and the manufacturing time for manufacturing one can be shortened compared to the conventional manufacturing method, and maintenance due to wear of processing devices and tools is also possible. Can be reduced.

本願発明は、先端側を先細りに形成し、先端側の片側の部分に平面または先端側部分の曲率より大きい曲面とした切割開き調整部を設けた金属製の筒体を、レーザー加工により万年筆の筒状ペンに形成する製造方法である。   In the present invention, the tip of the taper is tapered, and a metal cylinder provided with a slit opening adjusting portion having a curved surface larger than a flat surface or a curvature of the tip side portion is formed on one side portion of the tip side. It is a manufacturing method formed in a cylindrical pen.

本実施例を図１〜図７を用いて説明する。先ず、図１〜図３に示すように、万年筆の筒状ペン１の製造にあたって、従来のプレス加工による万年筆の筒状ペンの製造方法と同様に、先ず、金属製の先端を閉塞した筒体２を、プレス加工等によりて、先端側を先細りに形成し、前方部３の片側の部分に、筒体の曲率より大きい曲率の曲面で形成した切割開き調整部４を設け、後方部５を前軸部６としての外径寸法に形成して、加工素材としての筒体２とする。後の各工程で作業を行なう際に筒体１の位置だしの基準とすべく、筒体２の後方の開口端部７には切欠部８を設けてある。   This embodiment will be described with reference to FIGS. First, as shown in FIG. 1 to FIG. 3, in the manufacture of the fountain pen cylindrical pen 1, as in the conventional method of manufacturing a fountain pen cylindrical pen by press working, first, a cylindrical body whose metal tip is closed. 2 is formed by tapering the front end side by pressing or the like, and a slit opening adjusting portion 4 formed with a curved surface having a curvature larger than the curvature of the cylindrical body is provided on one side portion of the front portion 3, and the rear portion 5 is provided. It forms in the outer diameter dimension as the front axial part 6, and it is set as the cylinder 2 as a process raw material. A cutout 8 is provided at the open end 7 at the rear of the cylinder 2 so that the position of the cylinder 1 can be used as a reference when performing operations in the subsequent processes.

前記加工素材としての筒体２を、レーザー加工により、図４および図５に示すように、筒体２の先端の閉塞部９（二点差線で示した部分）を切断するとともに、ペン先部１０となる部分のサイドの部分１１（二点差線で示した部分）を切除し、切割開き調整部４の部分に貫通孔（ハート孔）１２を設ける。ペン先部１０の先端部１０ａには、図５に示すように、筒体２の軸心方向に突出した延出片１３を連接してなる加工筒体１４を形成する。   As shown in FIG. 4 and FIG. 5, the cylindrical body 2 as the processing material is cut by a closing portion 9 (a portion indicated by a two-dot chain line) at the tip of the cylindrical body 2 as shown in FIGS. 4 and 5. A side portion 11 (portion indicated by a two-dot chain line) of the portion to be 10 is cut out, and a through hole (heart hole) 12 is provided in the slit opening adjustment portion 4. As shown in FIG. 5, a processed cylindrical body 14 is formed at the tip end portion 10 a of the pen tip portion 10 by connecting extension pieces 13 protruding in the axial direction of the cylindrical body 2.

次に、プレス加工により、前記加工筒体１４におけるペン先部１０の先端部１０ａが従来の万年筆のペン先の先端部と同様の形状となるように、図６に示すように、ペン先部１０の先端を形成するための先端切断部１５とペン先部１０の幅方向の側辺１６ａ、１６ｂを形成するための側辺切断部１７ａ、１７ｂとで構成される略コ字型状に切断して除去して、万年筆の筒状ペン１を形成する。   Next, as shown in FIG. 6, the tip portion 10a of the nib portion 10 in the processed cylinder 14 has the same shape as that of the tip of the nib of a conventional fountain pen by pressing. 10 is cut into a substantially U-shape formed by a tip cutting portion 15 for forming the tip of the tip 10 and side cutting portions 17a, 17b for forming the side portions 16a, 16b in the width direction of the pen tip portion 10. Then, the fountain pen 1 is formed.

本実施例により製造した万年筆の筒状ペン１を使用するにあたっては、図７に示すように従来の年筆の筒状ペンと同様に、先ず、ペン先部１０にペンポイントとなるイリドスミンで形成された玉５１を熔設した後、ペンの先端から貫通孔（ハート孔）まで切割部５２を設けて筆記先端部５３とする。前軸部６内部に樹脂で形成した内筒５４を接着して設ける等し、前記内筒５４の内部に、櫛溝５５を有したペン芯５６と、該ペン芯５６の後方にインキカートリッジ（図示せず）を結合するための小径な結合部５７とインキカートリッジの閉塞板を開口するための突片５８を有したコネクタ５９を配設する。コネクタ５９の先端面５８ａとペン芯５２の壁面との間に、インキ漏洩防止用のＯリング６０を設けると良い。   In using the fountain pen cylindrical pen 1 manufactured according to the present embodiment, as shown in FIG. 7, first, the pen tip portion 10 is formed of iridosmin as a pen point, similarly to the conventional pen pen. After the ball 51 is melted, a cutting portion 52 is provided from the tip of the pen to the through hole (heart hole) to form a writing tip 53. An inner cylinder 54 formed of a resin is adhered inside the front shaft portion 6, and a pen core 56 having a comb groove 55 is formed inside the inner cylinder 54. An ink cartridge ( A connector 59 having a small-diameter coupling portion 57 for coupling (not shown) and a projecting piece 58 for opening the closing plate of the ink cartridge is disposed. An O-ring 60 for preventing ink leakage may be provided between the front end surface 58a of the connector 59 and the wall surface of the pen core 52.

前記内筒５４の後方に、略中央部に外方に突出したフランジ部６１を有し、該フランジ部６１より前方には雄ねじ部６２を、フランジ部６１より後方には胴軸（図示せず）に設けた雌ねじ部にねじ嵌合可能な雄ねじ部６３を設けた金属製の継手部材６４を、前記雄ねじ部を内筒５４の後方端部５４ａに設けた雌ねじ部６５にねじ嵌合するとともに接着して取付け、万年筆におけるペン先を有した前軸部として用いる。なお、フランジ部６１と前軸部６や内筒５４との間に、装飾用リング６６等を配設しても良い。   At the rear of the inner cylinder 54, there is a flange portion 61 protruding outward at a substantially central portion, a male screw portion 62 is provided in front of the flange portion 61, and a trunk shaft (not shown) is provided behind the flange portion 61. The metal joint member 64 provided with the male screw portion 63 that can be screwed into the female screw portion provided in () is screwed into the female screw portion 65 provided at the rear end portion 54 a of the inner cylinder 54. Glued and attached, used as a front shaft with a pen tip in a fountain pen. A decorative ring 66 or the like may be disposed between the flange portion 61 and the front shaft portion 6 or the inner cylinder 54.

本発明は、金属製の筒体から万年筆の筒状ペンを製造する際に利用できる。   The present invention can be used when manufacturing a fountain pen cylindrical pen from a metal cylinder.

本発明の万年筆の筒状ペンの製造方法における、レーザー加工前の加工素材である、一部を断面とした筒体の側面図である。It is a side view of the cylinder which made the section a part which is a processing material before laser processing in the manufacturing method of the cylindrical pen of the fountain pen of the present invention. 図１における筒体の平面図である。It is a top view of the cylinder in FIG. 図２における、Ａ−Ａ線部分の端面図である。It is an end elevation of the AA line part in FIG. レーザー加工により、加工素材の筒体の先端の閉塞部と切割開き調整部のサイドの部分の余分な側面を切除した状態のペン先部の側面を示す、要部の拡大図である。It is an enlarged view of the principal part which shows the side surface of the pen point part of the state which excised the obstruction | occlusion part of the front-end | tip of the cylinder of a process raw material, and the side part of the slit opening adjustment part by laser processing. 図４において、ペン先部の底面から見た状態の要部の拡大図である。In FIG. 4, it is the enlarged view of the principal part of the state seen from the bottom face of the pen point part. 図５において、プレス加工により、ペン先の先端部に連接した延出片１を切断して除去した状態を示す図である。In FIG. 5, it is a figure which shows the state which cut | disconnected and removed the extension piece 1 connected with the front-end | tip part of the pen tip by press work. 本実施例で製造した万年筆の筒状ペンの使用状態を示す図である。It is a figure which shows the use condition of the cylindrical pen of the fountain pen manufactured in the present Example. 従来のプレス加工による万年筆の筒状ペンの製造方法において、加工素材の筒体の先端側に、プレス加工により軸心方向に延びた下孔を形成した状態を示す、筒体の底面図である。In the manufacturing method of the cylindrical pen of the fountain pen by the conventional press work, it is a bottom view of a cylinder which shows the state where the pilot hole extended in the direction of an axis by press work was formed in the tip side of the cylinder of processing material . プレス加工により、切割開き調整部の部分に貫通孔を形成した状態を示す、筒体の平面図である。It is a top view of a cylinder which shows the state where a through-hole was formed in the part of a slit opening adjustment part by press work. プレス加工により、加工素材の筒体の先端の閉塞部を残して、切割開き調整部のサイドの部分の余分な側面を切除した状態の側面を示す、要部の拡大図である。It is an enlarged view of the principal part which shows the side surface of the state which left the obstruction | occlusion part of the front-end | tip of the cylinder of a process raw material, and cut off the excess side surface part of the side part of a slit opening adjustment part by press work. プレス加工により、前記工程の筒体の閉塞部とサイドの部分の余分な側面を切除してた状態の側面を示す、要部の拡大図である。It is an enlarged view of the principal part which shows the side surface of the state which cut off the extra side surface of the obstruction | occlusion part and side part of the cylinder of the said process by press work. 前記工程において、筒体に形成された段部を研磨して除去した状態を示す図である。It is a figure which shows the state which grind | polished and removed the step part formed in the cylinder in the said process.

符号の説明Explanation of symbols

１ 筒状ペン
２ 筒体
４ 切割開き調整部
９ 閉塞部
１０ ペン先部
１１ サイドの部分
１２ 貫通孔
１３ 延出片
１５ 先端切断部
１７ 側片切断部 DESCRIPTION OF SYMBOLS 1 Cylindrical pen 2 Cylindrical body 4 Split opening adjustment part 9 Closure part 10 Pen tip part 11 Side part 12 Through-hole 13 Extension piece 15 Tip cutting part 17 Side piece cutting part

Claims (2)

先端側を先細りに形成した金属製の筒体を、前方にペン先部を後方に前軸部を一体に形成してなる万年筆の筒状ペンに形成する製造方法であって、下記の工程を有することを特徴とする万年筆の筒状ペンの製造方法。
ａ：レーザー加工により、先細りの先端部のペン先部となる部分のサイドの部分を切除し、ペン先部となる部分の先端に筒体の軸心方向に延出した延出片を設けた、略ペン先部を形成する工程、
ｂ：プレス加工により、前記延出片を、ペン先部の先端を形成するための先端切断部とペン先の幅方向の側辺を形成するための側辺切断部とで構成される略コ字型状に切断して除去し、ペン先部を形成する工程。 A manufacturing method for forming a metal cylinder having a tapered tip end into a cylindrical pen of a fountain pen formed by integrally forming a pen tip portion at the front and a front shaft portion at the rear, and comprising the following steps: A method of manufacturing a cylindrical pen for a fountain pen, comprising:
a: By laser processing, the side portion of the portion that becomes the pen tip portion of the tapered tip portion is cut out, and an extending piece that extends in the axial direction of the cylindrical body is provided at the tip portion of the portion that becomes the pen tip portion. A step of forming a substantially nib portion;
b: By pressing, the extended piece is formed of a substantially cutting edge formed by a tip cutting part for forming the tip of the pen tip part and a side cutting part for forming the side of the pen tip in the width direction. A step of cutting and removing into a letter shape to form a pen tip. 請求項１に記載の万年筆の筒状ペンの製造方法において、前記ａ：の工程で、レーザー加工により略ペン先部の上面に貫通孔を設けてなる、万年筆の筒状ペンの製造方法。   The method for manufacturing a fountain pen cylindrical pen according to claim 1, wherein, in the step a :, a through-hole is provided in the upper surface of the substantially pen tip portion by laser processing.
JP2008220622A 2008-08-29 2008-08-29 Manufacturing method for cylindrical pen of fountain pen Pending JP2010052310A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2012057354A1 (en) * 2010-10-29 2014-05-12 株式会社Ｗｅｌｃｏｎ Joining method and container formed thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2012057354A1 (en) * 2010-10-29 2014-05-12 株式会社Ｗｅｌｃｏｎ Joining method and container formed thereby

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