SEWING SYSTEM AND SEWING METHOD

To allow an object to be sewn to follow a member holding the object to be sewn on the downstream side in a sewing direction, according to an inwardly recessed shape of a sewing line according to side seams of the object to be sewn.SOLUTION: A sewing system 1 includes: a second holding device 8; a second conveyance device 9 for conveying the second holding device 8 toward sewing positions 3 for sewing an object S to be sewn; and a control device 10. The second holding device 8 includes a pair of second holding parts 8A, 8B for holding the object S to be sewn from both end sides on the upstream side of a sewing direction SD. The control device 10 includes a conveyance control part 101 which, when an innermost position which is on the innermost side out of a pair of sewing lines SC of the object S to be sewn having a shape recessed inwardly passes the sewing positions 3, switches the direction of moving the pair of second holding parts 8A, 8B from the outside to the inside in a width direction SW of a conveyance passage of the object S to be sewn, and performs control so as to lower a relative conveyance speed of the second holding device 8 with respect to a feed speed during sewing of the object S to be sewn.SELECTED DRAWING: Figure 1 【課題】縫製対象物の脇縫いに係る縫製線の内側に凹の形状に応じて、縫製対象物を縫製方向下流側で縫製対象物を把持する部材に追従させることを可能にすること。【解決手段】縫製システム１は、第２把持装置８と、縫製対象物Ｓを縫製する縫製位置３へ向けて第２把持装置８を搬送する第２搬送装置９と、制御装置１０と、を備え、第２把持装置８は、縫製対象物Ｓを縫製方向ＳＤの上流側において両側端側から把持する一対の第２把持部８Ａ，８Ｂを有し、制御装置１０は、内側に凹の形状を有する縫製対象物Ｓの一対の縫製線ＳＣのうち最も内側の最内位置が縫製位置３を通過するときに、一対の第２把持部８Ａ，８Ｂを移動させる方向を縫製対象物Ｓの搬送路の幅方向ＳＷの外側から内側へ切り替え、縫製対象物Ｓの縫製中の送り速度に対する第２把持装置８の相対搬送速度を低下させるように制御する搬送制御部１０１を有する。【選択図】図１