Abstract: The present invention relates to a sewing structure for a seat cover, comprising a first cut piece (1), a second cut piece (2), a first sewing thread (3), a second sewing thread (4) and an inlay (5), wherein the first and the second cut piece in an overlapped status are sewn together by the first and the second sewing thread which are spaced apart from each other, wherein the inlay is arranged between the first and the second cut piece and between the first and the second sewing thread.

Abstract: The present invention relates to a seat headrest device comprising a fixed base (30), a headrest (20) and a headrest electric motor (40). The headrest electric motor (40) drives the headrest (20) to move relative to the fixed base (30) through a composite motion mechanism comprising a screw-nut mechanism (70) and a pinion-rack mechanism (10). The present invention further discloses a seat headrest device comprising the seat headrest device. The seat headrest device has the following characteristics: a stroke of the headrest can be significantly enhanced by means of the composite movement mechanism.

Abstract: The present application relates to a belt assembly for a vehicle and an arrangement for a vehicle including the belt assembly. The belt assembly (2) comprises a belt body (20) having at least two ends, at least one of which is loop-free, wherein the belt body (20) is fixedly provided with a first attachment (21) at the at least one end, wherein the first attachment forms a step with respect to at least one side surface of the belt body at the respective end of the belt body, wherein the first attachment (21), together with the belt body (20), form a first mounting end (22) of the belt assembly. The belt assembly may have improved appearance and improved accuracy.

Abstract: The present invention relates to a sewing structure for a seat cover, comprising a first cut piece (1), a second cut piece (2), a first sewing thread (3), a second sewing thread (4) and an inlay (5), wherein the first and the second cut piece in an overlapped status are sewn together by the first and the second sewing thread which are spaced apart from each other, wherein the inlay is arranged between the first and the second cut piece and between the first and the second sewing thread.