JPH03101687U - - Google Patents

Info

Publication number
JPH03101687U
JPH03101687U JP1074690U JP1074690U JPH03101687U JP H03101687 U JPH03101687 U JP H03101687U JP 1074690 U JP1074690 U JP 1074690U JP 1074690 U JP1074690 U JP 1074690U JP H03101687 U JPH03101687 U JP H03101687U
Authority
JP
Japan
Prior art keywords
diameter
expanding punch
expanding
tip
shaft
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
Application number
JP1074690U
Other languages
Japanese (ja)
Other versions
JP2501219Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990010746U priority Critical patent/JP2501219Y2/en
Publication of JPH03101687U publication Critical patent/JPH03101687U/ja
Application granted granted Critical
Publication of JP2501219Y2 publication Critical patent/JP2501219Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図から第４図は本考案の一実施例を示して
おり、第１図はインク筒の全体断面図、第２図か
ら第４図はそれぞれ軸筒の塑性加工を説明する作
用図、第５図から第７図は従来例を示しており、
第５図は軸筒の要部断面図、第６図および第７図
は、それぞれ軸筒の塑性加工を説明する作用図で
ある。 １０……インク筒、１１……軸筒、１６，１７
……ガイド部、２０……クチブラ（先端）、２５
……尾栓、３１……先端拡径パンチ、４１……後
端拡径パンチ。 1 to 4 show an embodiment of the present invention, in which FIG. 1 is an overall cross-sectional view of an ink cylinder, and FIGS. 2 to 4 are action diagrams illustrating plastic working of an axial cylinder, respectively. Figures 5 to 7 show conventional examples,
FIG. 5 is a sectional view of a main part of the shaft cylinder, and FIGS. 6 and 7 are action diagrams illustrating plastic working of the shaft cylinder, respectively. 10... Ink cylinder, 11... Shaft cylinder, 16, 17
...Guide part, 20...Cuchibra (tip), 25
...Tail plug, 31...Tip diameter expansion punch, 41...Rear end diameter expansion punch.

Claims (1)

【実用新案登録請求の範囲】 (1) 軸筒内部にインクに内蔵するとともに、軸
筒の端部の開口に先軸等の先端部材を嵌入して成
るインク筒を備えた筆記具において、 前記軸筒の端部の開口縁を塑性加工によりテー
パ状に拡径して、嵌入用のガイド部を形成したこ
とを特徴とする筆記具。 (2) 前記軸筒の先端部の開口縁をテーパ状に拡
径可能な先端拡径パンチと、前記軸筒の後端部を
拡径可能な後端拡径パンチとを前記軸筒の各端部
にそれぞれ嵌入し、前記先端拡径パンチと前記後
端拡径パンチとを相対的に離間する際に、前記先
端拡径パンチと前記後端拡径パンチとが前記軸筒
の各端部からそれぞれ抜け出る際の各摩擦抵抗力
の差により、前記軸筒が前記後端拡径パンチに嵌
つたままで前記先端拡径パンチから外れ可能なよ
う、前記軸筒の両端部をそれぞれ形成したことを
特徴とする請求項１記載の筆記具。[Scope of Claim for Utility Model Registration] (1) A writing instrument equipped with an ink cylinder in which ink is contained inside the barrel and a tip member such as a tip barrel is fitted into an opening at the end of the barrel, the shaft: A writing instrument characterized in that the diameter of the opening edge at the end of the cylinder is expanded into a tapered shape by plastic working to form a guide portion for insertion. (2) A tip diameter expanding punch capable of expanding the diameter of the opening edge of the distal end of the shaft cylinder into a tapered shape, and a rear end diameter expanding punch capable of expanding the diameter of the rear end of the shaft cylinder, each of the shaft cylinders. When the tip diameter-expanding punch and the rear-end diameter-expanding punch are inserted into the respective ends and the tip diameter-expanding punch and the rear-end diameter-expanding punch are relatively separated, the tip diameter-expanding punch and the rear-end diameter expanding punch fit into each end of the shaft cylinder. Both ends of the shaft tube are formed so that the shaft tube can be removed from the tip diameter expanding punch while being fitted into the rear end diameter expanding punch due to the difference in frictional resistance when the shaft tube is pulled out from the rear end diameter expanding punch. The writing instrument according to claim 1, characterized by:
JP1990010746U 1990-02-06 1990-02-06 Writing instrument Expired - Lifetime JP2501219Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990010746U JP2501219Y2 (en) 1990-02-06 1990-02-06 Writing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990010746U JP2501219Y2 (en) 1990-02-06 1990-02-06 Writing instrument

Publications (2)

Publication Number Publication Date
JPH03101687U true JPH03101687U (en) 1991-10-23
JP2501219Y2 JP2501219Y2 (en) 1996-06-12

Family

ID=31514300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990010746U Expired - Lifetime JP2501219Y2 (en) 1990-02-06 1990-02-06 Writing instrument

Country Status (1)

Country Link
JP (1) JP2501219Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007203548A (en) * 2006-01-31 2007-08-16 Pentel Corp Mold equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5097424A (en) * 1973-12-31 1975-08-02
JPS60175679U (en) * 1984-04-27 1985-11-21 ぺんてる株式会社 writing instrument small tube nib

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5097424A (en) * 1973-12-31 1975-08-02
JPS60175679U (en) * 1984-04-27 1985-11-21 ぺんてる株式会社 writing instrument small tube nib

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007203548A (en) * 2006-01-31 2007-08-16 Pentel Corp Mold equipment

Also Published As

Publication number Publication date
JP2501219Y2 (en) 1996-06-12

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