Sewing – Elements – Thread cutting – severing or breaking
Reexamination Certificate
1999-07-08
2001-08-21
Izaguirre, Ismael (Department: 3765)
Sewing
Elements
Thread cutting, severing or breaking
Reexamination Certificate
active
06276289
ABSTRACT:
The present invention relates to a device for cutting one or more threads in a sewing machine, which operates with one lower thread and at least one upper thread. The invention also relates to the use of said device for pulling down the free end of the upper thread under the fabric.
Previously known devices for this purpose are characterized in that they are relatively space demanding, which is a disadvantage, especially in a household sewing machine, where the available space is limited.
One object with the invention is to provide a device for cutting thread, which device has a low space demand and therefore is suitable to use in a household sewing machine.
An other object is to achieve a device for cutting thread which is operable via the control unit of the sewing machine and has an improved function by enabling a selectable cutting of the upper and/or the lower thread.
The above mentioned objects has been achieved by means of a device of the kind mentioned in the preamble, which according to the invention is characterized in that it includes a thread fetcher arranged to catch and bring the thread or the threads to a cutting position, and a knife, which cooperates with the thread fetcher to cut the thread or the threads, and that the thread fetcher is movable between the cutting position and at least one thread catching position to selectively catch the upper and/or the lower thread.
REFERENCES:
patent: 3386402 (1968-06-01), Ross
patent: 4141307 (1979-02-01), Okada
patent: 4589362 (1986-05-01), Dusch
patent: 5065683 (1991-11-01), Hayashi
patent: 5131340 (1992-07-01), Tajima et al.
patent: 5964170 (1999-10-01), Gries
patent: 6062152 (2000-05-01), Yu et al.
Izaguirre Ismael
Pearne & Gordon LLP
Viking Sewing Machines AB
LandOfFree
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