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US 4,278,039 AGranted
Detachable presser foot
AssigneeJanome Sewing Machine Industry Co., Ltd.
InventorsSusumu Hanyu, Akio Koide
Life of this patent
Estimating the term…
Abstract
The presser foot for a sewing machine is provided with a pair of aligned rollers arranged near the needle dropping hole. The lower end portion of the presser foot holder is connected to the presser foot between the pair of aligned rollers, so that a sufficient downwardly pressing force may be applied on the sewn materials even in the region near the needle dropping hole.
Claims3
A presser foot, for use in combination with a sewing machine having a presser bar axially displaceable relative to a needle plate, and a presser foot holder secured to a lower end of the presser bar, said presser foot comprising:
- (i) a frame including a needle dropping hole and a plurality of apertures to receive rollers
- (ii) a plurality of rollers journalled on said frame for rotation about respective axes which are transverse to the direction of feed of material past the presser foot when in use, said rollers protruding through the frame apertures, said plurality of rollers including a pair of rollers which are coaxial and which are closely adjacent to the needle hole in the direction of feed of material, said pair of rollers being spaced axially from each other,
- (iii) connection means on said frame disposed between said spaced rollers for detachable engagement with the presser foot holder.
Dependencies are inferred from the claim text.