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US 6,959,657 B1Granted
Optical stitch regulator system
OwnerRichard J. Duvalinventor
Life of this patent
Estimating the term…
Abstract
An optical stitch regulator system for efficiently regulating the stitch length and stitch frequency of a sewing machine. The optical stitch regulator system includes at least one optical sensor within or external of the sewing platform of a sewing machine for sensing the motion of the fabric being sewn. The motion data is communicated to a control unit which communicates with the sewing machine for controlling the stitch length and frequency.
Claims14
An optical stitch regulator system, comprising:
- a sewing machine;
- and
- at least one optical sensor attached to said sewing machine for measuring a movement of a piece of fabric relative to a needle of said sewing machine, wherein said movement is comprised of a direction and a velocity of the piece of fabric and, wherein said optical sensor is in communication with said sewing machine regarding said movement, wherein said optical sensor is positioned within a sewing platform of said sewing machine, and wherein said optical sensor extends above an upper surface of said sewing platform.
A process of operating an optical stitch regulator for a sewing machine, said process comprising:
- sensing a movement of fabric relative to a needle of a sewing machine with at least one optical sensor, wherein said movement is comprised of a direction and a velocity of said movement, wherein said optical sensor is positioned within a sewing platform of said sewing machine, and wherein said optical sensor extends above an upper surface of said sewing platform;
- generating a movement data representing said movement;
- and
- adjusting a motor speed within said sewing machine based upon said movement data.
1 more element
An optical stitch regulator system, comprising:
- a sewing machine carriage;
- and
- at least one optical sensor attached to said sewing machine carriage for measuring a movement of a piece of fabric relative to a needle of a sewing machine, wherein said movement is comprised of a direction and a velocity of the piece of fabric and, wherein said optical sensor is capable of communicating with a sewing machine regarding said movement, wherein said optical sensor is positioned within a sewing platform of said sewing machine, and wherein said optical sensor extends above an upper surface of said sewing platform.
Dependencies are inferred from the claim text.