Importance

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Abstract

A blind stitch sewing mechanism includes a sewing head (10) with a carrier (20), a needle shaft (34) rotatably supported on the carrier (20), which needle shaft is connected with a needle holder (36) radially extending from the needle shaft for holding an arc shaped needle curved about the axis (38) of the needle shaft (34), a needle drive (56, 58, 44, 42) for moving the needle (40) back and forth, a loop catcher (74) moveably supported on the carrier (20) for receiving a thread loop formed by the withdrawal of the needle from the work material, a catcher drive for moving the loop catcher (74) in timewise coordination with the movement of the needle (40), and a device (14) creating a relative movement between the sewing head (10) and the work material, the loop catcher (74) being formed for a back and forth movement perpendicular to the movement path of the needle (40) and the device (14) creating a relative movement between the sewing head (10) and the work material being so formed that the created sewn seam runs at least nearly in the direction of the movement path of the arc shaped needle (40).

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First Claim