Rear end small revolving type hydraulic shovel

Abstract

A rear end small revolving type hydraulic shovel (tight tail revolving hydraulic excavator) that can improve maintainability of an engine and secures a wide foot space of an operator's cab is provided. In order to achieve this, the engine ( 13 ) is arranged below an operator's seat ( 21 ). Additionally, a floor frame ( 30 ) supporting the operator's seat ( 21 ) defines a front partition wall ( 33 b ) and an upper partition wall ( 33 a ) of the engine. Further, the floor frame ( 30 ) is configured so as to be tilt-up. Furthermore, a piping ( 42 ) and a wiring ( 46 ) connected to an equipment ( 41 ) on the floor frame ( 30 ) side are arranged so as to pass through the vicinity of an axis line of a tilt-up supporting point.

1 - 3 . (canceled)  
   
   
       4 . A tight tail revolving hydraulic excavator having an engine below an operator's seat, wherein a floor frame supporting the operator's seat with a control lever disposed in a front portion thereof has a stepped portion defined by a front partition wall, an upper partition wall of the engine, and a floor plate of an operator's cab.  
   
   
       5 . The tight tail revolving hydraulic excavator according to  claim 4 , wherein the floor frame supporting the operator's seat is elevated in a rear portion thereof about a tilt up supporting point provided in a front portion of a revolving frame of the rear end small revolving type hydraulic excavator.  
   
   
       6 . The tight tail revolving hydraulic excavator according to  claim 4 , wherein a piping and a wiring connected to an equipment provided on the floor frame side are arranged so as to pass through the vicinity of an axis line of the tilt-up supporting point.  
   
   
       7 . The tight tail revolving hydraulic excavator according to  claim 5 , wherein a piping and a wiring connected to an equipment provided on the floor frame side are arranged so as to pass through the vicinity of an axis line of the tilt-up supporting point.