Patent ID: 11946182
Assignee: nan
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 8:
9. 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 pin; 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, and
the variable drive crank includes an elongated slot and the pin is configured to move within the slot, and selectively extending and retracting the actuator shaft adjusts a position of the pin along a length of the slot.