Patent ID: 7360823

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 comprising an upper link member and a lower link member, which are connected pivotally to an upper front end and a lower front end of said door, respectively, said upper and lower link members capable of freely swinging horizontally; a slide rail provided externally on said cab box, the slide rail having a front end inwardly bent at a rear edge of the entrance of the cab box, the front end forming an inwardly extending portion adjacent to said rear edge, said slide rail extending in a back-and-forth direction; and a slide member, which is connected pivotally to a rear end of said door so as to freely swing horizontally and which slides in the back-and-forth direction along the slide rail, wherein said lower link member is provided below a floor of said cab box, so that said lower link member never intrudes the cab room of said cab box and said slide rail is provided approximately at a vertical center of an external surface of said cab box rearward of said entrance, extending in the back-and-forth direction, said inwardly extending portion directing a rear portion of said door inwardly toward said cab box such that an external surface of said door is in substantially the same plane as said external surface of said cab box when said door is closed.