EP 0863023 A3 20000628 - Double-chuck mechanical pencil
Title (en)
Double-chuck mechanical pencil
Title (de)
Füllminenstift mit zwei Spannbacken
Title (fr)
Porte-mine à deux pinces de serrage
Publication
Application
Priority
JP 6175497 A 19970303
Abstract (en)
[origin: EP0863023A2] 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). <IMAGE>
IPC 1-7
IPC 8 full level
B43K 21/20 (2006.01); B43K 29/02 (2006.01)
CPC (source: EP KR)
B43K 21/00 (2013.01 - KR); B43K 21/20 (2013.01 - EP); B43K 21/22 (2013.01 - KR); B43K 29/02 (2013.01 - EP)
Citation (search report)
- [Y] EP 0715968 A1 19960612 - KOTOBUKI & CO LTD [JP]
- [Y] EP 0321581 A1 19890628 - PENTEL KK [JP]
- [A] US 5018891 A 19910528 - KAGEYAMA HIDEHEI [JP], et al
- [AP] US 5683191 A 19971104 - KAGEYAMA SHUHEI [JP], et al
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0863023 A2 19980909; EP 0863023 A3 20000628; EP 0863023 B1 20030326; CN 2323976 Y 19990616; KR 19980065047 U 19981125; KR 200162605 Y1 19991215; TW 356768 U 19990421
DOCDB simple family (application)
EP 97310618 A 19971224; CN 98209022 U 19980213; KR 19970040337 U 19971224; TW 86219484 U 19971121