Patent ID: 6993815

Claim:
Apparatus ( 1 ) for upholstering components of chairs, armchairs, in particular backrests and/or seats, comprising: a sandwich structure ( 11 ) with a covering layer ( 12 ) fitted so as to cover a frame ( 14 ) at least partially; at least one stapling gun ( 8 ); a support table ( 10 a ) for the sandwich structure ( 11 ); and means ( 16 ) for compressing the sandwich structure ( 11 ); the apparatus being characterized in that: the sandwich structure ( 11 ) is positioned on the support table ( 10 a ) with the covering layer ( 12 ) placed in contact with the support table ( 10 a ) and with the frame superimposed thereon; it comprises a robotic arm ( 4 ) on which the stapling gun ( 8 ) is mounted and means for controlling the robotic arm ( 4 ), the control means being arranged to guide and operate the stapling gun along a stapling path defined peripherally on the sandwich structure ( 11 ); a rotatable platform ( 28 ) which can rotate about an axis (Z′″) and to which the robotic arm ( 4 ) is connected by means of a first articulation ( 29 ); and a fabric-stretching roller ( 34 ) associated with the robotic arm ( 4 ), the roller being motordriven so as to act on the covering layer ( 12 ) which is gripped between the roller ( 34 ) and the frame ( 14 ) in a tensioned state, prior to stapling; the peripheral edge portions of the covering layer being stretched over the frame ( 14 ) by the fabric-stretching roller.