Patent ID: 7137662

Claim:
An operator cab for a construction machine, comprising: a cab box, which has an internal cab room and an entrance into said cab room; a door, which is attached at said entrance such that said entrance is closed when said door is moved forward, and said entrance is opened when said door is moved rearward; a link member, whose one end is connected pivotally to said cab box and whose other end is connected pivotally to a front end of said door, said link member capable of freely swinging horizontally; a closed door lock, which is provided at said front end of said door to engage with a closed door striker, which is provided on said cab box, said closed door lock keeping said front end of said door at a closed position, where said entrance is closed, after said door has shifted forward in correspondence to a forward swing of said link member around a pivot at said one end thereof and has reached said closed position; an opened door lock, which is provided also at said front end of said door to engage with an opened door striker, which is provided on said cab box, said opened door lock keeping said door open after said door has shifted rearward in correspondence to a rearward swing of said link member around the pivot of said one end thereof and has opened; and a handle, which is provided also at said front end of said door and interlocked with said closed door lock and with said opened door lock to release said closed door striker or said opened door striker from engagement.