A laminating device and method for laminating a decor layer onto a carrier part includes a lower tool with a support region for receiving the carrier part, an upper tool including a pressing surface for exerting a pressing pressure onto the decor layer which is arranged between an upper side of the carrier part and the pressing surface, and at least one movable slider for edge-folding an overhang of the decor layer around an edge of the carrier part by way of pressing the slider against the overhang of the decor layer. A distance between the lower tool and the pressing surface can be enlarged or reduced. The lower tool includes a first membrane, wherein the arrangement of the first membrane and the slider to one another is such that the first membrane is movable onto the slider, for pressing the slider against the overhang of the decor layer.

In a joining jig for disposing a sheet-shaped adherend on one surface side of a sheet-shaped material, folding back the adherend in an end edge portion of the sheet-shaped material, and causing adhesion of an end edge portion of the adherend on the other surface side of the sheet-shaped material, by a tip portion of an attachment piece pivoting in the end edge portion of a placement surface of a placement base, the attachment piece is switchable between a deployment position where an attachment surface to which the adherend is attached is deployed outside the end edge portion of the placement surface of the placement base and a facing position where the attachment surface faces the end edge portion of the placement surface.