Patent ID: 7207758

Claim:
A fastening device for holding together a stack of at least two panels, each panel having a hole passing there through, the device comprising a female piece including a clasp consisting of a hollow head capable of elastic deformation in the axial direction and a hollow foot which can be engaged in the holes that pass through said stack of panels and which has two tabs that can elastically separate from one another, moving between an unseparated position for insertion of the foot into said holes and a separated position for holding together a stack of panels; and a male piece, comprising a head and a shaft with a cross section in the form of a cam that can be axially inserted into said clasp, which engages between the tabs of the foot of the clasp and rotating therein, between an angular position of non-separation of the tabs and an angular position of separation of the tabs, as well as a means of preventing premature rotation of the male piece in the female piece in the position of separation of the tabs, having at least one component in the shape of an L having one end projecting from the head of the female piece and a notch for receiving the projecting component on the periphery of the head of the male piece in said position of separation, the component comprising another end in the form of a finger which can be moved by intentional action between a position of engagement in the notch and a position of disengagement from said notch, when the male piece and the female piece occupy their relative angular position with respect to the separation of the tabs.