(19)
(11) EP 2 378 010 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.01.2012 Bulletin 2012/03

(43) Date of publication A2:
19.10.2011 Bulletin 2011/42

(21) Application number: 11173680.7

(22) Date of filing: 25.11.2005
(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 IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(62) Application number of the earlier application in accordance with Art. 76 EPC:
05823628.2 / 1954890

(71) Applicant: ESTI S.r.l.
25074 Idro (BS) (IT)

(72) Inventor:
  • Esti, Giovanni
    I-25074 Idro, Brescia (IT)

(74) Representative: Chimini, Francesco 
Jacobacci & Partners S.p.A. Piazza della Vittoria 11
25129 Brescia
25129 Brescia (IT)

   


(54) Tip for earth moving machinery and locking key therefore


(57) The invention relates to a tip assembly for earth moving machinery, comprising a tip (11) having a pocket (12) open at the back, said tip exhibiting a hole (16) for seating a locking key, a adapter (41) having a nose (42) that geometrically couples with said pocket (12), said nose being crossed by a seat (43) for seating the locking key, and a locking key (61) inserted in said hole in the tip and in said seat in the adapter for locking the tip to the adapter. At least one surface of the nose exhibits a lowered or recessed zone obtained around the seat for the locking key. At least the wall of the pocket facing said surface of the nose internally exhibits a relief complementary to said lowered or recessed zone. In this way, the coupling between the tip and the adapter is made stronger by the interaction between at least two respective facing surfaces.







Search report