Patent ID: 9145662
Filing Date: 2015-09-29
Classification: E02F,Y10T

Abstract:
1. A mechanical system ( 1 ) comprising a support ( 10 ), a wearing part ( 20 ) and a connection device ( 30 ) between the wearing part ( 20 ) and the support ( 10 ), the connection device ( 30 ) comprising: a sheath ( a key ( wherein the sheath ( 40 ) and the key ( 50 ; 150 ; 250 ) are jointly rotatable (R 1 ) around a pivot axis (X 40 ) in the housing ( 14 ) of the support ( 10 ) between: an insertion configuration (A) where the key ( a locked configuration (B) where the key ( and wherein the inner cavity ( 48 ) extends in the sheath ( 40 ) along an off-centered axis (X 48 ) radially offset relative to the pivot axis (X 40 ), the inner cavity ( 48 ) being provided with elements ( 49 ) for rotational (R 1 ) securing with driving elements ( 59 ; 159 ; 257 , 259 ) formed on the body ( 53 ; 153 ; 253 ) of the key ( 50 ; 150 ; 250 ).