Work vehicle
There is provided a work vehicle in which sudden operation of a work implement can be suppressed. The work vehicle includes a design surface information acquiring unit for acquiring data of a design surface indicative of a target shape of a work object by the work implement; a cutting edge position computing unit for computing a position of a cutting edge of a bucket; and an operation restricting unit for executing operation restriction control by which a boom is forcibly raised in accordance with a relative position of the cutting edge to the design surface, and the position of the cutting edge is restricted to an upper part of the design surface. In a state where the cutting edge is located away from the design surface in a downward perpendicular direction by a prescribed distance or longer, the operation restricting unit does not execute the operation restriction control.
1. A work vehicle, comprising:
a work implement having a boom, an arm attached to a distal end of said boom, and a bucket attached to a distal end of said arm;
a design surface information acquiring unit for acquiring data of a design surface indicative of a target shape of a work object by said work implement;
a cutting edge position computing unit for computing a position of a cutting edge of said bucket; and
an operation restricting unit for forcibly raising said boom in accordance with a relative position between the position of said cutting edge of said bucket and said design surface, wherein
in a state where said cutting edge is located away from said design surface in a downward perpendicular direction by a prescribed distance or longer, said operation restricting unit executes control so as not to forcibly raise said boom.
2. The work vehicle according to claim 1 , wherein
when said design surface is a slope inclined by a prescribed angle or larger with respect to a horizontal direction, said operation restricting unit executes control so as not to execute the forcible raising of the boom.
3. The work vehicle according to claim 2 , wherein
said operation restricting unit controls said boom to prevent the position of said cutting edge from becoming lower than said design surface.
4. The work vehicle according to claim 3 , wherein
the work vehicle transmits and receives information to and from the outside by satellite communication.
5. The work vehicle according to claim 2 , wherein
when the position of said cutting edge becomes lower than said design surface, said operation restricting unit forcibly raises said boom.
6. The work vehicle according to claim 5 , wherein
the work vehicle transmits and receives information to and from the outside by satellite communication.
7. The work vehicle according to claim 2 , wherein
the work vehicle transmits and receives information to and from the outside by satellite communication.
8. The work vehicle according to claim 1 , wherein
said operation restricting unit controls said boom to prevent the position of said cutting edge from becoming lower than said design surface.
9. The work vehicle according to claim 8 , wherein
the work vehicle transmits and receives information to and from the outside by satellite communication.
10. The work vehicle according to claim 1 , wherein
when the position of said cutting edge becomes lower than said design surface, said operation restricting unit forcibly raises said boom.
11. The work vehicle according to claim 10 , wherein
the work vehicle transmits and receives information to and from the outside by satellite communication.
12. The work vehicle according to claim 1 , wherein
the work vehicle transmits and receives information to and from the outside by satellite communication.
13. The work vehicle according to claim 1 , wherein
in the state where said cutting edge is located away from said design surface in the downward perpendicular direction by the prescribed distance or longer, with the forcible raising of the boom being in execution, said operation restricting unit executes control so as not to execute the forcible raising of the boom.