Sewing – Elements – Frames
Patent
1994-09-12
1995-08-15
Crowder, Clifford D.
Sewing
Elements
Frames
112302, 112168, 112241, D05B 7500, B65H 5700
Patent
active
054410037
ABSTRACT:
A sewing machine is comprised of a bed, an arm having a vertical portion set upright on the bed, and a horizontal portion horizontally extending from the upper end of the vertical portion, an arm shaft extended within and journaled on the arm, a sewing head detachably joined to the extremity of the arm, a needle bar incorporated into the sewing head, supported so as to be driven for vertical reciprocation on the sewing head by the arm shaft, and capable of being removed from the arm together with the sewing head, a motion converting means detachably connected with the needle bar to convert the rotation of the arm shaft into the reciprocation of the needle bar, a needle thread feed device disposed on the sewing head to feed a needle thread to a needle attached to the lower end of the needle bar, and a thread takeup device disposed on the arm and capable of operating in synchronism with the vertical reciprocation of the needle bar to draw up the slack needle thread and of releasing the needle thread.
REFERENCES:
patent: 3545392 (1970-12-01), Fresard
patent: 3599585 (1971-08-01), Myrick
patent: 4590875 (1986-05-01), Sanvito et al.
patent: 4624201 (1986-11-01), Maggi
patent: 4651660 (1987-03-01), Oshima et al.
patent: 4934291 (1990-06-01), Yamamoto
patent: 5105750 (1992-04-01), Horie
patent: 5253601 (1993-10-01), Sanvito
Aisin Seiki Kabushiki Kaisha
Crowder Clifford D.
Lewis Paul C.
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