Control apparatus for construction machine

A control apparatus for a construction machine, characterized in that it comprises:

• operation means (24) at least having a revolving operation member (16, 18) for operating a construction machine revolving unit (14) of said construction machine:
• working fluid supply means (22) at least including a fluid pressure pump (2) driven by a prime mover (1) and an accumulator (5) for accumulating working fluid on the discharge side of said fluid pressure pump (2);
• driving means (23) including a fluid pressure actuator (7) for driving said construction machine revolving unit (14) to revolve with the working fluid from said working fluid supply means (22);
• valve means (19) including a first control valve (8) interposed between said driving means (23) and said working fluid supply means (22) for controlling a revolution condition of said construction machine revolving unit (14) by said fluid pressure actuator (7), and a second control valve (11) interposed between said fluid pressure actuator (7) and said accumulator (5) for controlling an inflow condition of the fluid from said fluid pressure actuator (7) into said accumulator (5) when said fluid pressure actuator (7) is driven by said construction machine revolving unit (14);
• and
• control means (9) including first valve control means (9a) for controlling said first control valve (8) in response to an operation instruction received from said revolving operation member (16, 18) and second valve control means (9b) for controlling said second control valve (11) when said fluid pressure actuator (7) is driven by said construction machine revolving unit (14).