Sewing machine

Details Sewing machine Sewing machine

2008-05-13

2008-05-13

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Driving mechanisms

C112S099000, C112S254000, C112S302000, C112S113000

Reexamination Certificate

active

07370592

ABSTRACT:
Sewing machine includes a tension detection section (26) for detecting tension acting on a sewn material (A) paid out from a rotary holder member, and a drive section for driving the rotary holder member, and the driving operation of the drive section (14) is controlled on the basis of the detection by the tension detection section. Once the tension acting on the sewn material has increased, the rotary holder member is driven to rotate by the drive section, so that the sewn material can be paid out smoothly from the rotary holder member. The sewing machine is particularly useful in a case where the rotary holder member is constructed into an increased size so that an increased amount of the sewn material can be wound thereon.

REFERENCES:
patent: 523522 (1894-07-01), Haas et al.
patent: 740654 (1903-10-01), Hochstrasser
patent: 797308 (1905-08-01), Nassberg
patent: 1004912 (1911-10-01), Russell
patent: 1356762 (1920-10-01), Groebli
patent: 4009674 (1977-03-01), Ladd
patent: 5029543 (1991-07-01), Trojan
patent: 5178081 (1993-01-01), von-Hagen et al.
patent: 5404824 (1995-04-01), Hiraoka et al.
patent: 5615628 (1997-04-01), Tajima et al.
patent: 3-286797 (1991-12-01), None
patent: 2003-320189 (2003-11-01), None
Relevant portion of International Search Report of corresponding PCT Application PCT/JP2004/017013.

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