Work-Feeding Means TRIZ Cases

A color-coded seam allowance guide label maps specific measurements to distinct colors on a sewing machine needle plate.

A sewing machine cloth edge detection system uses collimated light and a reflector plate to identify workpiece side edges for precise lateral feeding.

Vertical arm movement resolves the trade-off between fabric tension and loading ease, ensuring accurate embroidery patterns.

A hopping foot assembly with a rotating ruler guide and bias spring locking mechanism.

Tubular templates guide needles to tangle fibers into shapes, eliminating felt cutting waste.

A pick-up nozzle uses a shaped ventilation groove to direct airflow along the inner bottom surface for stable workpiece separation.

A hopping foot assembly with a rotating ruler guide maintains two-point contact with the ruler edge to align the needle precisely.

Transmission control section halts upper feed movement when teeth retract, eliminating excess vibrations and noise.

A textile fabric folding apparatus uses an adjustable oscillating isosceles triangle to align longitudinal edges during the sewing process.

Composite foam disks mediate hand-fabric contact, distributing grip forces to prevent soiling and reduce fatigue.

Concealed pockets isolate rigid labels from skin friction, eliminating discomfort while preserving permanent attachment.

Segmented feed paths and convex deflectors create curved toe seams on tubular knitted articles without fabric deformation.