Sewing machine

Details Sewing machine Sewing machine

2011-04-12

2011-04-12

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Presser devices

Reexamination Certificate

active

07921788

ABSTRACT:
A sewing machine comprising: vertical movement actuator that vertically moves the presser bar having a presser foot; a control unit, that controls the vertical movement actuator to selectively execute a first mode or a second mode; a mode switch unit capable of selectively switching between the first mode and the second mode; and the control unit, when switched to the first mode, controls the vertical movement actuator so as to retain the presser foot at a cloth pressing position irrespective of an operational status of a sewing process; and when switched to the second mode, controls the vertical movement actuator so as to retain the presser foot in a slightly lifted position while a sewing operation is ongoing, whereas when the sewing operation is stopped, the presser foot is moved and retained in the cloth pressing position.

REFERENCES:
patent: 2008621 (1935-07-01), Mattingly
patent: 4388886 (1983-06-01), Adams
patent: 4409914 (1983-10-01), Sansone
patent: 4706587 (1987-11-01), Shiomi
patent: 5461997 (1995-10-01), Landen
patent: 2002/0020333 (2002-02-01), Yoshikazu
patent: A 8-332290 (1996-12-01), None
patent: A 2006-20757 (2006-01-01), None

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