Sewing machine and embroidering frame having means for damping vibration of the frame
AssigneeJanome Sewing Machine Co., Ltd.
InventorsMasashi Ninomiya, Mikio Koike, Koshiro Omiya
Life of this patent
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Abstract
A sewing machine has a drive mechanism for driving an embroidering frame B, means for holding the embroidering frame B and operatively connected to the drive mechanism to be driven thereby to move the embroidering frame B in X-Y direction relative to a vertically reciprocating needle on the surface of a machine bed, and means for normally pressing the embroidering frame B against the surface of the machine bed with an optimal force to absorb the vibrations of the embroidering frame B which may be caused during embroidery stitching operation.
Claims13
A sewing machine having a capability of damping vibrations of an embroidering frame during operation, said sewing machine comprising:
- a drive mechanism for moving said embroidering frame;
- frame holding means for holding said embroidering frame, said holding means being connected to and driven by said drive mechanism to move said embroidering frame, relative to a reciprocating needle, on a surface of a machine bed;
- and
- vibration absorbing means for absorbing vibrations of said embroidering frame during operation.
An embroidering frame having a capability of damping vibrations thereof during operation with a sewing machine, said embroidering frame comprising:
- a frame portion for holding a piece of cloth to be stitched;
- an arm portion having a first end fixedly connected to said frame portion and an opposite, second end adapted to be connected to frame holding means of the sewing machine, said arm portion having at least a part moveable with respect to said frame portion, wherein said arm portion includes a flexible member for allowing said arm portion to, at least partially, rotate relative to said frame portion to adjustably press said frame portion against a surface of a machine bed of the sewing machine;
- and
- means for regulating the rotation movement of said arm portion.
In combination, a sewing machine and an embroidering frame for use with said sewing machine;
- said sewing machine comprising:
- a drive mechanism for moving said embroidering frame;
- a stationary machine bed;
- a reciprocating needle moving relative to a working surface of said machine bed;
- and
- a moveable support holding said embroidering frame, said support being connected to and driven by said drive mechanism to move said embroidering frame relative to the working surface of said machine bed, said support having a spring for damping vibrations of said embroidering frame during operation;
- and
- said embroidering frame comprising first and second frame elements fastenable together to hold a piece of cloth to be stitched.
Dependencies are inferred from the claim text.