EP 2489830 A2 20120822 - Mineral winning pick, pick box, and combination
Title (en)
Mineral winning pick, pick box, and combination
Title (de)
Mineralgewinnender Meissel, Meisselhaler und entsprechende Kombination
Title (fr)
Pic d'abattage minéral, porte-pic et combinaison
Publication
Application
Priority
GB 201102725 A 20110217
Abstract (en)
A mineral cutter pick (1) has an oblong section to define leading (3), trailing (4) and side (5) faces of a shank (2), and hence has longitudinal and transverse axes (6, 7). The shank (2) is provided with a single, circular section through hole (16) extending orthogonally across its side faces (5), in which hole (16) is fitted a resilient member (17) of circular section with an external diameter to match that of the hole (16), the resilient member (17) itself having a coaxial through hole (18) so as to provide an annulus of constant thickness when uncompressed and adapted, in use, after the pick shank (2) has been inserted into a shank-receiving aperture (22) of a pick box (5), to itself receive, and frictionally retain, a manually insertable, and manually removable, metal pin (23) adapted to project beyond the side faces (5). The invention also includes a pick box (15), to receive the shank (2) comprising a body (28) provided with a through hole (31) extending orthogonally across the body (28) and adapted, in use, to intersect with the through hole (18) of the resilient member (17). The invention also includes a pick and box combination.
IPC 8 full level
E21C 35/193 (2006.01); B25B 13/12 (2006.01); B25G 1/00 (2006.01); B25G 1/06 (2006.01)
CPC (source: EP US)
B25B 13/12 (2013.01 - EP US); B25G 1/005 (2013.01 - EP US); B25G 1/063 (2013.01 - EP US); E21C 35/1936 (2013.01 - EP US)
Citation (applicant)
- GB 1062752 A 19670322 - AUSTIN HOY & CO LTD
- GB 2420360 A 20060524 - HYDRA MINING TOOLS INTERNAT LT [GB]
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2489830 A2 20120822; AU 2012200912 A1 20120906; CA 2768875 A1 20120817; CN 102644462 A 20120822; EA 201200136 A1 20121130; GB 201102725 D0 20110330; IN 433DE2012 A 20150605; US 2012274123 A1 20121101; ZA 201201207 B 20150826
DOCDB simple family (application)
EP 12155179 A 20120213; AU 2012200912 A 20120217; CA 2768875 A 20120215; CN 201210114791 A 20120217; EA 201200136 A 20120216; GB 201102725 A 20110217; IN 433DE2012 A 20120215; US 201213398105 A 20120216; ZA 201201207 A 20120217