Sewing Apparatus TRIZ Cases

See how combining sewing with ultrasonic processing creates thin, durable cap seams that reduce

See how adhesive-coated thread melts during sewing to seal needle holes and seams, eliminating

Steel weights sealed in fire-resistant polyester replace lead curtain weights, preventing fraying, exposure, and unsafe handling.

Two parallel linear stitches replace staple weld arcs to limit heat buildup, reduce spatter, and improve weld strength and stability.

Orientation cutouts or imprints built into seam allowances help align pattern pieces correctly, reducing sewing errors, time, and material waste.

Computer-controlled arms and claws stitch baseball cover halves in a flat layout, cutting manual labor while keeping seams consistent.

This case uses discrete secondary absorbent members and a continuous cord to avoid complex weaving during high-speed tampon assembly.

A flexible polyurethane-coated tape welds to fabric seams, blocking fluid and gas intrusion while resisting over 40 washings.

A sewing machine display device shows operational test records stored in a performance record storage device.

Flexible textile guide with flutes enables smooth cord routing and load equalization.

A sewing machine sews a single fabric strip along a helical trajectory to form bags with varying dimensions.

Extracted guide holes eliminate frictional loop damage during stitching by using separate intermediary members and tapered reed tooth geometries.

A linking device uses two bowed needles on mutually inclined shafts connected by a slider to pivot reciprocally.

Local heating melts the rear side of a PVC or TPU skin against seam yarn, preventing foam escape during foaming and eliminating complex sealing equipment.

Inverting a soft layer over rough connector edges eliminates sharp surfaces without adding manufacturing labor.

An embedded support strip within the intermediate layer prevents material compression and pillow formation during stitching.

Automated embroidery machines stitch continuous carbon fiber tapes to maintain curvilinear orientation, eliminating wrinkles during resin infusion.

Curved transfer elements grip knitting needle hooks to move textile stitches, reducing movement force and preventing needle breakage.

Transferring needles align inner loops with final loops to create dense, uniform seamed joints, resolving inconsistent loop size and reduced durability issues.

A barrel-shaped machine bed supports multiple plies of ballistic fabric during stitching to maintain a semi-cylindrical geometry.

Segmenting the conductor sheet into high and low conductance portions protects the RFID chip from washing stress while maintaining flexibility.

Inserting drive shafts between fabric and thread manages excessive tension in ornamental stitching without manual adjustments.

A workpiece-moving device for sewing machines uses a separate drive unit to rotate the loading table independently of the conveyance frame.

A tubular textile preparation mold elongates one fabric side to shift the seam away from the toe tip.

A linearly movable transfer device positions sequins onto textile surfaces using a guide rail system.

A magnetic holder uses adjustable guide pieces to secure workpieces of varying thicknesses.

A composite fiber mat uses reinforcing seams to increase strength and stability in high-stress regions.

A single sewn sheathing member accommodates flat and flexed wire sections, reducing component count while maintaining coverage.

A toe closing method secures hosiery loops using interlaced tail portions to stabilize the stitch structure.

A sewing device uses a motor-driven cam disk to convert uniform rotation into coordinated stitching, maintaining constant extrudate speed.

A pivotal needle assembly moves opposite the stitch direction to accommodate complex geometries.

Embedded magnetic elements in clothing plackets self-align and couple to secure fabric layers without button holes.

A tubular member with detection elements determines the angular position of a knitted article stretched over it.

Segmented spars and struts join via sockets and plugs within tubular sleeves, resolving assembly complexity while maintaining structural integrity.

Curved pressers control sewing arc roundness in tights production, resolving trade-offs between manufacturing precision and device complexity.