Patent ID: 8672412

Claim:
A fastening device for a children's chair, the children's chair including a seat plate having a vertical through hole for mounting the fastening device, the fastening device comprising: at least one cross piece having an underside comprising a surface that defines a horizontal plane, the cross piece connected to two side pieces, the side pieces extending at an angle from the cross piece and defining a plane that is oblique to the horizontal plane, where the side pieces are joined by at least one cross bar such that the cross piece, side pieces, and cross bar define an opening, and wherein the cross bar is positioned at a vertical distance from the cross piece when the fastening device is mounted; and at least two mainly vertical lining elements extending lengthwise between an upper end and a lower end in a vertical direction transverse to the horizontal plane and adapted to be inserted into the through hole, wherein the lining elements are connected at their upper ends to the underside of the cross piece and/or side pieces, and each vertical lining element comprises at its lower end at least one locking hook having a larger horizontal extent than a remainder of the vertical lining elements.