EP0863023A3 - Double-chuck mechanical pencil - Google Patents

Double-chuck mechanical pencil Download PDF

Info

Publication number
EP0863023A3
EP0863023A3 EP97310618A EP97310618A EP0863023A3 EP 0863023 A3 EP0863023 A3 EP 0863023A3 EP 97310618 A EP97310618 A EP 97310618A EP 97310618 A EP97310618 A EP 97310618A EP 0863023 A3 EP0863023 A3 EP 0863023A3
Authority
EP
European Patent Office
Prior art keywords
lead
chuck
eraser
double
mechanical pencil
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
EP97310618A
Other languages
German (de)
French (fr)
Other versions
EP0863023B1 (en
EP0863023A2 (en
Inventor
Yoshihide c/o Kotobuki & Co. Ltd. Mitsuya
Shouji c/o Kotobuki & Co. Ltd. Anzai
Hidehei c/o Kotobuki & Co. Ltd. Kageyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kotobuki and Co Ltd
Original Assignee
Kotobuki and Co Ltd
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
Priority claimed from JP9061754A external-priority patent/JPH10166783A/en
Application filed by Kotobuki and Co Ltd filed Critical Kotobuki and Co Ltd
Publication of EP0863023A2 publication Critical patent/EP0863023A2/en
Publication of EP0863023A3 publication Critical patent/EP0863023A3/en
Application granted granted Critical
Publication of EP0863023B1 publication Critical patent/EP0863023B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00Propelling pencils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00Propelling pencils
    • B43K21/02Writing-core feeding mechanisms
    • B43K21/16Writing-core feeding mechanisms with stepwise feed of writing-cores
    • B43K21/20Writing-core feeding mechanisms with stepwise feed of writing-cores with writing-cores automatically replaced from magazines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00Propelling pencils
    • B43K21/02Writing-core feeding mechanisms
    • B43K21/22Writing-cores gripping means, e.g. chucks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00Combinations of writing implements with other articles
    • B43K29/02Combinations of writing implements with other articles with rubbers

Abstract

The invention is intended to prevent, in a double-chuck mechanical pencil provided with an eraser, the torsional breakage of a lead gripped by a front lead chuck and a back lead chuck due to the turning of a lead tank caused when an eraser is used, and to eliminate inconvenience to a lead supplying operation caused by the abrasion of the eraser.
A double-chuck mechanical pencil having a front lead chuck (11) for holding a lead and a back lead chuck (5) for advancing a lead, comprises a barrel (1), a lead tank (4) connected to the back lead chuck (5), an adapter (3) fixedly put on a back portion of the lead tank (4), restrained from rotation relative to the barrel (1) and axially movable, and a rotary eraser projecting mechanism (12) provided with a support member (13) or an eraser support structure (16) provided with a support member (17) restrained from rotation relative to the adapter (3) and detachably connected to a back portion of the adapter (3).
EP97310618A 1997-03-03 1997-12-24 Double-chuck mechanical pencil Expired - Lifetime EP0863023B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9061754A JPH10166783A (en) 1996-10-07 1997-03-03 Double chuck type mechanical pencil
JP6175497 1997-03-03
JP61754/97 1997-03-03

Publications (3)

Publication Number Publication Date
EP0863023A2 EP0863023A2 (en) 1998-09-09
EP0863023A3 true EP0863023A3 (en) 2000-06-28
EP0863023B1 EP0863023B1 (en) 2003-03-26

Family

ID=13180274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97310618A Expired - Lifetime EP0863023B1 (en) 1997-03-03 1997-12-24 Double-chuck mechanical pencil

Country Status (4)

Country Link
EP (1) EP0863023B1 (en)
KR (1) KR200162605Y1 (en)
CN (1) CN2323976Y (en)
TW (1) TW356768U (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4008772B2 (en) * 2001-12-14 2007-11-14 株式会社壽 Double chuck mechanical pencil
JP4001526B2 (en) * 2002-08-23 2007-10-31 株式会社壽 Rod-shaped object cradle and shaft cylinder provided with a rod-shaped object cradle
KR102174751B1 (en) * 2016-04-27 2020-11-05 가부시키가이샤 고도부키 Mechanical pencil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321581A1 (en) * 1987-06-27 1989-06-28 Pentel Kabushiki Kaisha Writing utensil
US5018891A (en) * 1989-07-10 1991-05-28 Kotobuko & Co., Ltd. Writing instrument with eraser dispenser
EP0715968A1 (en) * 1994-12-07 1996-06-12 KOTOBUKI & CO., LTD. Double-chuck mechanical pencil
US5683191A (en) * 1987-10-09 1997-11-04 Kotobuki & Co., Ltd. Writing tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321581A1 (en) * 1987-06-27 1989-06-28 Pentel Kabushiki Kaisha Writing utensil
US5683191A (en) * 1987-10-09 1997-11-04 Kotobuki & Co., Ltd. Writing tool
US5018891A (en) * 1989-07-10 1991-05-28 Kotobuko & Co., Ltd. Writing instrument with eraser dispenser
EP0715968A1 (en) * 1994-12-07 1996-06-12 KOTOBUKI & CO., LTD. Double-chuck mechanical pencil

Also Published As

Publication number Publication date
KR19980065047U (en) 1998-11-25
EP0863023B1 (en) 2003-03-26
KR200162605Y1 (en) 1999-12-15
CN2323976Y (en) 1999-06-16
TW356768U (en) 1999-04-21
EP0863023A2 (en) 1998-09-09

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