(19)
(11) EP 1 852 557 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.08.2008 Bulletin 2008/34

(43) Date of publication A2:
07.11.2007 Bulletin 2007/45

(21) Application number: 07009529.4

(22) Date of filing: 22.09.2003
(51) International Patent Classification (IPC): 
E02F 9/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

(30) Priority: 19.09.2002 US 411762 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
03759392.8 / 1579083

(71) Applicant: ESCO CORPORATION
Portland, OR 97210-2578 (US)

(72) Inventor:
  • Emrich, Robert K.
    Tigard, OR 97223 (US)

(74) Representative: Madgwick, Paul Roland et al
RUSCHKE HARTMANN MADGWICK & SEIDE Patent- und Rechtsanwälte Postfach 86 06 29
81633 München
81633 München (DE)

   


(54) Wear assembly and lock for an excavating bucket


(57) A wear assembly (12) for an excavating bucket comprises a base (14) fixed to the excavating bucket, a wear part (16) received over the base (14) and having a hole (52) extending therethrough to open in the socket (42) the hole (52) having a peripheral edge (54), and a lock (18) for releasably holding the wear part (16) to the nose (20), the lock (18) including a locking member (62) having a stem (90) and a projection (77), the locking member (62) being rotatable about a longitudinal axis of the stem (90) between a release position and a locking position, the projection (77) being within the peripheral edge (54) of the hole (52) in the release position and outside of the peripheral edge (54) of the hole (52) in the locking position such that the projection (77) is set between the nose (18) and the wear part (16), characterized by the lock including a non-rotating resilient member (64) engaging the locking member (62) to resist turning of the locking member (62) between the release and locking positions.







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