The invention relates to a bobbin thread tension adjusting device of a sewing machine, which comprises a bobbin case and a cylindrical magnetic steel, and is characterized by further comprising a screw stem; a pivot shaft is arranged on the bobbin case, the pivot shaft and the bobbin case ...
Disclosed is a bobbin case of a rotary shuttle device for a sewing machine, in which an under thread pulled out of a bobbin is continuously and stably supplied to a sewing region. The bobbin case comprises a main body integrally provided... Lee, Sang Cheol,Lee II, Sung - US 被引量: ...
The utility model relates to a bobbin thread adjusting device of a sewing machine, which is a device for adjusting the coil in quantity of the bobbin thread of the sewing machine and the tightness degree and improving the default that the adjusting device of the traditional sewing machine ...
The machine bed is furnished with a looper for bobbin thread which is interlocked with the needles 14 and feeds the bobbin thread through a tension adjusting lever 15. Thus, double ring sewing is applied to the cloth through interactions of the needles 14 with the looper 16 for bobbin thread...
A lower thread tension adjusting device for a sewing machine comprising first and second tension arrangements mounted on a bobbin carrier of the sewing machine for tensioning a lower thread with a predetermined tension and a predetermined additional tension, respectively. A positioning device is mounted...
A lower thread tension adjusting device is disclosed, which is used in combination with a sewing machine having a horizontal rotary loop taker and a stationary bobbin carrier accomodating a bobbin. A lower thread drawn from the bobbin is passed between a base plate secured to the outer face of...
FULL ROTATION SHUTTLE MECHANISM OF SEWING MACHINE AND BOBBIN THREAD FEEDING AMOUNT ADJUSTING METHODPROBLEM TO BE SOLVED: To appropriately adjust the thread tension in sewing without exchanging a shuttle spring even if the thickness of a sewing material or a cloth feeding pitch is different.AKIYAMA ...
A sewing machine has a loop taker rotated in horizontal plane and a bobbin carrier contained in the loop taker. The bobbin carrier has an abutment secured thereto and a leaf spring mounted on the abutment and movable to and away from the abutment to adjust a tension applied to a lower ...
BOBBIN HOUSING, HOOK INCLUDING THE SAME, AND SEWING MACHINE, CAPABLE OF ADJUSTING INNER DIAMETER IN BOBBIN ACCEPTORPURPOSE: A bobbin housing, a hook including the same, and a sewing machine are provided to insert a yarn structure to the sewing machine easily, and to secure safety and ...