Patent ID: 8491029

Claim:
A tonneau cover device of a vehicle which includes a rear opening portion formed at a rear portion of a vehicle body, a back door to open and close the rear opening portion, and a rear baggage compartment formed in front of the rear opening portion, comprising: a tonneau board provided so as to extend substantially horizontally over the rear baggage compartment, the tonneau board including plural split boards which are split in a vehicle longitudinal direction, longitudinally-adjacent split boards being coupled to each other via a hinge portion extending in a vehicle width direction, wherein said split boards include a front board provided on a front side of the vehicle, a rear board provided on the rear side of the vehicle, and a middle board provided between the front board and the rear board, the front board and the middle board are coupled to each other via a first hinge portion, the middle board and the rear board are coupled to each other via a second hinge portion; a folding mechanism pulling upwardly said front board and said rear board, respectively, when the back door is opened, said folding mechanism comprising a first connection member which connects a rear portion of said middle board to the back door and a second connecting member which connects a rear portion of said rear board to the back door; and a forward move mechanism moving said middle board forwardly when the back door is opened, said forward move mechanism comprising a third connecting member which connects a front portion of said middle board to the vehicle body; whereby the tonneau board is folded in accordance with an opening operation of the back door such that the front board and the rear board are pulled upwardly by said folding mechanism and the middle board is moved forwardly by said forward moving mechanism, thereby bending the front board and the middle board in a reverse-V shape with respective back faces of the front and middle boards approaching each other and bending the middle board and the rear board in a V shape with respective upper faces of the middle and rear boards approaching each other.