Manufacturing method, manufacturing apparatus and manufacturing jig of trim cover surface material

A manufacturing method of a trim cover surface material, the trim cover surface material including:

• an outer material which is formed with a plurality of through holes by a predetermined pattern;
• and a wadding material laminated on the outer material, the trim cover surface material being formed with stitches that sew together the outer material and the wadding material at gap portions between through hole patterns, the manufacturing method comprising:
• providing a jig including:
• a first frame configured to hold an outer periphery of the outer material;
• and a second frame configured to hold an outer periphery of the wadding material by overlapping the wadding material on the outer material which is held by the first frame;
• holding the outer periphery of the outer material with the first frame of the jig;
• forming the plurality of through holes in the outer material which is held by the jig;
• holding the outer periphery of the wadding material with the second frame of the jig while the outer material is held by the first frame of the jig;
• and
• forming the stitches in the outer material and the wadding material that are overlapping and held by the jig.