Sewing machine with adjustable stepping height and related methods
AssigneeSttchex Performance Engineering LLC
InventorSteven Marcangelo
Life of this patent
Estimating the term…
Abstract
A kit for adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the kit includes a mounting assembly including an actuator bracket, an actuator coupled to the actuator bracket, a drive assembly, and a needle drive assembly. The actuator includes an actuator shaft that extends and retracts. The drive assembly includes a drive shaft, a drive arm coupled to the drive shaft and the actuator shaft, and a guide coupled to the drive shaft. The needle drive assembly includes a variable drive crank coupled to the guide and configured to couple to a needle drive shaft of a sewing machine. Selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
Claims11
A kit for adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the kit comprising:
- a mounting assembly including:
- an actuator bracket;
- an actuator coupled to the actuator bracket and including:
- an actuator shaft that extends and retracts;
- a drive assembly including:
- a drive shaft,
- a drive arm coupled to the drive shaft and the actuator shaft, and
- a guide coupled to the drive shaft;
- and
- a needle drive assembly including:
- a variable drive crank coupled to the guide and configured to couple to a needle drive shaft of the sewing machine;
- wherein selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
A method of adjusting a stepping height of an upper walking foot of a sewing machine, the method comprising:
- selectively extending and retracting an actuator shaft;
- and
- actuating a guide and variable drive crank to adjust the stepping height of the upper walking foot.
A method of adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the method comprising:
- installing a mounting assembly including an actuator bracket to a sewing machine;
- coupling an actuator with an actuator shaft that extends and retracts to the actuator bracket;
- coupling a drive arm to the actuator shaft;
- coupling the drive arm to a drive shaft;
- coupling a guide to the drive shaft;
- and
- coupling a variable drive crank to the guide and a needle drive shaft of the sewing machine.
Dependencies are inferred from the claim text.