EP 0273122 B1 19920102 - ARTICULATED STEEL CAP FOR A MINING SUPPORT
Title (en)
ARTICULATED STEEL CAP FOR A MINING SUPPORT
Publication
Application
Priority
DE 8632139 U 19861201
Abstract (en)
[origin: US4820085A] A steel cap for steel sets in mining support structures is made of a hollow sectional profile having a certain length. A tip is arranged as an insert at one end of the sectional profile. A fork is arranged as an insert at the other end of the sectional profile. Each insert is formed as a plug-in connection. The plug-in connection is provided with a hold free of play in a correct position. For this purpose each insert has at its end facing the sectional profile, a plug with a cross-section corresponding to that of the sectional profile, and at least one surface inclined relative to the longitudinal axis of the steel cap. At least one movable wedge element is arranged for cooperation with each inclined surface. A wedge drive permits driving the wedge element or elements into or out of a locking position relative to the respective inclined surface.
IPC 1-7
IPC 8 full level
E21D 17/08 (2006.01); E21D 17/00 (2006.01); E21D 17/01 (2006.01)
CPC (source: EP US)
E21D 17/00 (2013.01 - EP US); Y10T 403/7056 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
US 4820085 A 19890411; AT E71183 T1 19920115; AU 583994 B2 19890511; AU 8194787 A 19880609; BG 49277 A3 19910916; BR 8706388 A 19880719; CA 1326961 C 19940215; CN 1013136 B 19910710; CN 87108117 A 19880629; CS 268843 B2 19900411; CS 860887 A2 19890814; DE 3775736 D1 19920213; DE 8632139 U1 19870226; EP 0273122 A1 19880706; EP 0273122 B1 19920102; ES 2027675 T3 19920616; FI 875267 A0 19871130; FI 875267 A 19880602; FI 87600 B 19921015; FI 87600 C 19930125; GR 3003490 T3 19930217; HU 198981 B 19891228; HU T46782 A 19881128; IN 168499 B 19910413; JP H05520 B2 19930106; JP S63194099 A 19880811; MA 21121 A1 19880701; NO 874981 D0 19871130; NO 874981 L 19880602; NZ 222715 A 19900426; PL 156515 B1 19920331; PL 268995 A1 19880901; PT 86240 A 19890117; PT 8773 T 19940228; RO 110167 B1 19951030; SU 1611224 A3 19901130; TN SN87134 A1 19900101; TR 23723 A 19900718; UA 7136 A1 19950630; YU 211987 A 19910228; ZA 878972 B 19880831
DOCDB simple family (application)
US 12659187 A 19871130; AT 87115117 T 19871016; AU 8194787 A 19871127; BG 8203487 A 19871201; BR 8706388 A 19871126; CA 553107 A 19871130; CN 87108117 A 19871130; CS 860887 A 19871127; DE 3775736 T 19871016; DE 8632139 U 19861201; EP 87115117 A 19871016; ES 87115117 T 19871016; FI 875267 A 19871130; GR 910401724 T 19920103; HU 530187 A 19871125; IN 906CA1987 A 19871119; JP 30030587 A 19871130; MA 21362 A 19871130; NO 874981 A 19871130; NZ 22271587 A 19871127; PL 26899587 A 19871124; PT 8624087 A 19871130; PT 877393 U 19930513; RO 13049987 A 19871118; SU 4203714 A 19871125; TN SN87134 A 19871127; TR 76387 A 19871119; UA 4203714 A 19871125; YU 211987 A 19871123; ZA 878972 A 19871130