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.
Claims14
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;
- a power driven 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 be coupled to a needle drive shaft of the sewing machine, and
- a needle drive lever configured to be coupled to the needle drive shaft;
- wherein selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
A sewing machine with an automated upper walking foot stepping height adjustment, the sewing machine comprising:
- an actuator including an actuator shaft that extends and retracts;
- a drive assembly including:
- a drive shaft,
- a drive arm coupled to the drive shaft and coupled to the actuator shaft, and
- a guide coupled to the drive shaft;
- a needle drive assembly including:
- a needle drive shaft,
- a variable drive crank coupled to the needle drive shaft and the guide, and
- an upper walking foot coupled to the variable drive crank;
- and
- a needle assembly coupled to the needle drive shaft;
- wherein selectively extending and retracting the actuator shaft adjusts a stepping height of the upper walking foot.
A kit for adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the kit comprising:
- a power driven actuator configured to be coupled to the sewing machine 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 needle drive shaft configured to replace a needle drive shaft of the sewing machine,
- a needle drive lever coupled to the needle drive shaft, and
- a variable drive crank coupled to the needle drive shaft and the guide;
- wherein selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
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;
- a needle drive lever coupled to the needle 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 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;
- a needle drive lever coupled to the needle drive shaft;
- a needle assembly coupled to the needle drive lever;
- 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 sewing machine with an automated upper walking foot stepping height adjustment, the sewing machine comprising:
- an actuator including an actuator shaft that extends and retracts;
- a drive assembly including:
- a drive shaft,
- a drive arm coupled to the drive shaft and coupled to the actuator shaft, and
- a guide coupled to the drive shaft;
- a needle drive assembly including:
- a needle drive shaft,
- a variable drive crank coupled to the needle drive shaft and the guide, and
- an upper walking foot coupled to the variable drive crank;
- a needle drive lever coupled to the needle drive shaft;
- and
- a needle assembly coupled to the needle drive shaft and the needle drive lever;
- wherein selectively extending and retracting the actuator shaft adjusts a stepping height of the upper walking foot.
A kit for adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the kit comprising:
- an actuator configured to be coupled to the sewing machine 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;
- a needle drive assembly including:
- a variable drive crank coupled to the guide,
- a needle drive shaft coupled to the variable drive crank and configured to replace a needle drive shaft of the sewing machine;
- and
- a needle drive lever coupled to the needle drive shaft;
- wherein selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
A kit for adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the kit comprising:
- an actuator configured to be coupled to the sewing machine 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;
- a needle drive assembly including:
- a variable drive crank coupled to the guide,
- a needle drive shaft coupled to the variable drive crank and configured to replace a needle drive shaft of the sewing machine;
- a needle drive lever coupled to the needle drive shaft;
- and
- a needle assembly coupled to the needle drive lever;
- wherein selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
Dependencies are inferred from the claim text.