Sewing machine
AssigneeJanome Corporation
InventorsKentaro Akahane, Jun Mafune
Life of this patent
Estimating the term…
Abstract
A sewing machine includes a sewing pitch setup unit configured to set up a given sewing pitch; a movement detection unit configured to detect a movement of a material to be sewn; a control unit configured to calculate a movement speed of the material on the basis of a movement amount of the material detected by the movement detection unit and to calculate a rotational rate for a sewing machine motor for operating a needle on the basis of the movement speed and the given sewing pitch; and an informing component configured to inform of magnitude of the rotational rate relative to a maximum rotational rate for the sewing machine motor.
Claims7
A sewing machine comprising:
- a sewing pitch setup unit configured to set up a given sewing pitch;
- a movement detection unit configured to detect a movement of a material to be sewn;
- a control unit configured to calculate a movement speed of the material on the basis of a movement amount of the material detected by the movement detection unit and to calculate a rotational rate for a sewing machine motor for operating a needle on the basis of the movement speed and the given sewing pitch;
- and
- an informing component configured to inform of a proportion of the rotational rate to a maximum rotational rate for the sewing machine motor.
A non-transitory computer-readable storage medium containing computer-executable instructions for controlling a sewing machine, the sewing machine comprising:
- a sewing machine motor for operating a needle;
- a movement detection unit for detecting a movement of a material to be sewn;
- and a control unit for operating the sewing machine motor,
- wherein, when implementing the instructions, the control unit is operable to:
- calculate a movement speed of the material on the basis of a movement amount of the material detected by the movement detection unit;
- calculate a rotational rate for the sewing machine motor on the basis of the movement speed and a given sewing pitch;
- and
- cause an informing component to inform of a proportion of the rotational rate to a maximum rotational rate for the sewing machine motor.
Dependencies are inferred from the claim text.