EP 3433057 B1 20220302 - CHISEL
Title (en)
CHISEL
Title (de)
MEISSEL
Title (fr)
BURIN
Publication
Application
Priority
- EP 16161839 A 20160323
- EP 2017056617 W 20170321
Abstract (en)
[origin: WO2017162623A1] The invention relates to a tool bit comprising a tip (2), a working section (6) and an impact surface (3), and a longitudinal axis (7) extending through the tip (2), the working section (6) and the impact surface (3). The working section (6) has a plurality of webs (14) extending along the longitudinal axis (7) and arranged such that they are distributed about the longitudinal axis (7) in the peripheral direction (15) . A dimension (27) of at least one of the webs (14) increases by at least one third in the peripheral direction (15), with increasing distance (26) from the longitudinal axis (7). The webs are significantly wider towards the outside or thinner towards the longitudinal axis.
IPC 8 full level
B25D 17/02 (2006.01)
CPC (source: EP US)
B25D 17/02 (2013.01 - EP US); B25D 2250/211 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3222390 A1 20170927; CN 108883524 A 20181123; CN 108883524 B 20220826; EP 3433057 A1 20190130; EP 3433057 B1 20220302; US 11213939 B2 20220104; US 2020122309 A1 20200423; WO 2017162623 A1 20170928
DOCDB simple family (application)
EP 16161839 A 20160323; CN 201780018420 A 20170321; EP 17712130 A 20170321; EP 2017056617 W 20170321; US 201716084058 A 20170321