Claims
- 1. A looper thread take-up apparatus attached to a sewing machine with a needle being provided at the nose of a machine arm supported on a machine bed, and with a looper being provided at the position within the machine bed corresponding to the needle drop point, where a sewing operation is performed by moving the needle and the looper synchronously with the rotation of the machine main shaft, which loosens a looper thread fed to the looper in the prescribed operation timing of said looper by the rotation of a thread take-up cam corresponding to the rotation of a main shaft of the sewing machine, said apparatus being characterized in that said thread take-up cam is attached to a rotating shaft projected from a leg portion of the sewing machine for supporting the base end of the machine arm on the machine bed on the side facing said needle drop point, and interlocked with said machine main shaft within said leg portion.
- 2. A sewing machine provided with a looper thread take-up apparatus of claim 1.
- 3. A looper thread take-up apparatus as set forth in claim 1, wherein said rotating shaft and machine main shaft are interlocked with each other by a timing belt layed between the rotation shaft and the machine main shaft.
- 4. A sewing machine provided with a looper thread take-up apparatus of claim 3.
- 5. A looper thread take-up apparatus as set forth in claim 1, wherein a support equipped with a thread guide member for guiding said looper thread to the thread take-up cam is provided on one face of said leg portion, with the attaching side of said thread guiding member directing frontward.
- 6. A sewing machine provided with a looper thread take-up apparatus of claim 5.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7-225348 |
Sep 1995 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/705,681 filed Aug. 29, 1996, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (3)
Number |
Date |
Country |
57-147677 |
Sep 1982 |
JPX |
6-154456 |
Jun 1994 |
JPX |
247919 |
May 1995 |
TWX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
705681 |
Aug 1996 |
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