EP 3250788 B1 20191016 - PICK, IN PARTICULAR A ROUND-SHANK PICK
Title (en)
PICK, IN PARTICULAR A ROUND-SHANK PICK
Title (de)
MEISSEL, INSBESONDERE RUNDSCHAFTMEISSEL
Title (fr)
BURIN, EN PARTICULIER BURIN À QUEUE D'ARONDE
Publication
Application
Priority
- DE 102015101063 A 20150126
- EP 2016051342 W 20160122
Abstract (en)
[origin: CA2982483A1] The invention relates to a pick, in particular a round-shank pick, comprising a pick head and a pick shank, wherein the pick head consists of at least a base part and a cutting element, which is connected to the base part and is composed of a hard material, in particular hard metal, wherein the base part has a wear-resistant layer on the outer surface thereof at the connection to the cutting element, which wear-resistant layer covers at least one segment of the outer surface of the base part facing the cutting element and wherein an end face of the wear-resistant layer facing the cutting element is covered by the cutting element. According to the invention, the base part has an axially oriented cut-out for receiving a fastening segment of the cutting element, the base part has a counter surface facing the cutting element and extending around the cut-out, and the counter surface and the end face of the wear-resistant layer form a continuous flat surface. The invention further relates to two methods for producing such a pick. The pick formed in such a way has low abrasive wear.
IPC 8 full level
E01C 23/08 (2006.01); E21B 10/46 (2006.01); E21C 35/183 (2006.01)
CPC (source: CN EP US)
E21B 10/46 (2013.01 - CN EP US); E21C 35/183 (2013.01 - CN EP US); E21C 35/1831 (2020.05 - US); E21C 35/1835 (2020.05 - US); E21C 35/19 (2013.01 - US); E21C 35/197 (2013.01 - US)
Citation (examination)
- DE 3531787 C1 19860626 - BERCHEM & SCHABERG GMBH
- DE 9016655 U1 19910228
Citation (opposition)
Opponent : KENNAMETAL INC.
- US 4711503 A 19871208 - BERCHEM RUETGER [DE], et al
- DE 3519101 A1 19861204 - WIRTGEN REINHARD
- EP 0412287 A2 19910213 - WAHL VERSCHLEISS TECH [DE]
- DE 4039217 A1 19920611 - JACOBS WILLI [DE], et al
- US 2005035649 A1 20050217 - MERCIER GREGORY DAVID [US], et al
- US 2005212345 A1 20050929 - SLEEP KEITH [AU], et al
- US 2008164747 A1 20080710 - WEAVER STEVEN LEE [AU], et al
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)
DE 102015101063 A1 20160728; AU 2016212202 A1 20170824; AU 2016212202 B2 20181213; CA 2982483 A1 20160804; CA 2982483 C 20211116; CN 107429564 A 20171201; CN 107429564 B 20190322; EP 3250788 A1 20171206; EP 3250788 B1 20191016; JP 2018508670 A 20180329; PL 3250788 T3 20200518; US 10415385 B2 20190917; US 2018003051 A1 20180104; WO 2016120168 A1 20160804
DOCDB simple family (application)
DE 102015101063 A 20150126; AU 2016212202 A 20160122; CA 2982483 A 20160122; CN 201680018688 A 20160122; EP 16701457 A 20160122; EP 2016051342 W 20160122; JP 2017539417 A 20160122; PL 16701457 T 20160122; US 201715653890 A 20170719