Global Patent Index - EP 0088318 A3

EP 0088318 A3 19850710 - PROPELLING PENCIL WITH AN AUTOMATIC FEED FOR THE LEAD DEPENDING ON THE WRITING PRESSURE

Title (en)

PROPELLING PENCIL WITH AN AUTOMATIC FEED FOR THE LEAD DEPENDING ON THE WRITING PRESSURE

Publication

EP 0088318 A3 19850710 (DE)

Application

EP 83101906 A 19830226

Priority

DE 3207923 A 19820305

Abstract (en)

[origin: EP0088318A2] The lead of the propelling pencil is automatically fed as far out of the tip as the lead has been used. This takes place with the aid of the writing pressure by the lead guide tube, which moves into the pencil tip against spring force, when the spring is released. The writing pressure is received by clamping tongs which are supported on an inner cone by means of roller bodies. The clamping tongs (Figure 1) consist of a guide head (16), onto which spring arms (24) are moulded which each have at their free end a clamping jaw (25) which contains a clamping groove (27) for the lead (12) and a bearing pouch (30) for receiving the roller body (35), which bearing pouch is formed by a straight roll-off track, an apex and a support surface and is produced by casting.

IPC 1-7

B43K 21/02; B43K 21/22

IPC 8 full level

B43K 21/033 (2006.01); B43K 21/22 (2006.01)

CPC (source: EP)

B43K 21/033 (2013.01); B43K 21/22 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0088318 A2 19830914; EP 0088318 A3 19850710; DE 3207923 A1 19830915; DE 3207923 C2 19840517; JP S58201696 A 19831124

DOCDB simple family (application)

EP 83101906 A 19830226; DE 3207923 A 19820305; JP 3472483 A 19830304