Patent ID: 6769371
Filing Date: 2004-08-03
Classification: D05B

Abstract:
A sewing apparatus comprising:a needle bar; a needle bar vertically moving mechanism vertically moving the needle bar; a needle bar position changing operation unit operated via the needle bar vertically moving mechanism to change a vertical position of the needle bar; a thread cassette having a thread accommodating section accommodating a supply of thread; a cassette mount to which the thread cassette is detachably attached; a cassette detector detecting the thread cassette attached to the cassette mount; and a needle bar position changing control unit controlling the needle bar vertically moving mechanism so that in a case where the needle bar position changing unit has been operated, the needle bar is changed from an upper stop position to a lower stop position or from the lower stop position to the upper stop position according to a position of the needle bar at the time of operation of the needle bar position changing unit when the thread cassette is attached to the cassette mount according to a result of detection by the cassette detector, the needle bar position changing control unit further controlling the needle bar vertically moving mechanism so that the needle bar is changed to the upper stop position irrespective of the position of the needle bar at the time of operation of the needle bar position changing unit when the thread cassette is unattached to the cassette mount according to the result of detection by the cassette detector.