Working device with coupling means for operatively coupling it to a vehicle

Abstract

A working device, with coupling means for operatively coupling it to a vehicle, which means form a quick coupling, comprises, on a rear side of a bucket ( 1 ), a supporting plate ( 8 ) supporting a first portion of the constructional elements forming the quick coupling, whereas a respective end portion of the vehicle arms has a further supporting plate ( 14 ), which is driven by a cylinder-piston unit ( 21 ), and supports a further portion of the quick coupling forming constructional elements.

1 . A working device, with coupling means for operatively coupling said working device to an operating vehicle, which coupling means form a quick coupling, characterized in that on a rear side of said bucket ( 1 ) is provided a supporting plate ( 8 ) supporting a first portion of the constructional elements ( 13 ,  11 ) forming said quick coupling, and that a respective end portion of the operating vehicle arms ( 2 ) supports a further plate ( 14 ), which can be driven by a cylinder-piston unit ( 21 ), which supporting plate ( 14 ) supports a further portion of the constructional elements forming said quick coupling. 
   
   
       2 . A working device, according to  claim 1 , characterized in that said plate ( 14 ) is driven by a driving piston ( 21 ) provided for mechanically locking the bucket ( 1 ) by a locking leverage ( 50 ) arranged between said cylinder-piston unit ( 21 ) and a support ( 22 ) of supporting columns ( 16 ). 
   
   
       3 . A device according to  claim 1 , characterized in that said movable plate ( 14 ) is supported through bushings ( 13 ) by parallel supporting columns ( 16 ).