Sewing machine for large-surface, frame clamped material

Details Sewing machine for large-surface, frame clamped material Sewing machine for large-surface, frame clamped material

1992-07-09

1994-07-05

Crowder, Clifford D.

Sewing

Special machines

Quilting

1984701, D05B 1100

Patent

active

053258029

ABSTRACT:
The invention concerns a sewing machine for a large-surface, frame-clamped material.
Sewing machines for large-surface materials 39 clamped in a frame 38, 50 are known, wherein the material 39 is held in place in stationary manner in a sewing-machine structure 1, the sewing head together with the gripper box being displaceable longitudinally and transversely and frame-exchanging equipment being provided.
In order to create a sewing machine with a much simplified design for the frame-exchanging equipment, the invention proposes that the frame-exchanging equipment be mounted in the vicinity of the sewing-machine structure 1 and comprise a conveyor of such design that following sewing, the frame 38 with the processed material 39 be forced out of the sewing-machine structure 1 and simultaneously the frame 50 with the material to be processed be pulled-in and be moved into the sewing position, and in that the two frames 38, 50 be moved overlapping one with the other during the exchange.

REFERENCES:
patent: 3044426 (1962-07-01), Schwarzberger
patent: 3070049 (1962-12-01), Kalning
patent: 3124256 (1964-03-01), Schwarzberger
patent: 3180293 (1965-04-01), Cash
patent: 3382825 (1968-05-01), Cash
patent: 3884344 (1975-05-01), Hurst
patent: 4420051 (1983-12-01), Furuta et al.
patent: 4649842 (1987-03-01), Backmann

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