Embroidering machine including sewing machine and embroidering unit connectable to sewing machine
First Claim
1. An embroidering machine having a sewing machine and an embroidering unit detachably connected to the sewing machine for enabling embroidering operation, the embroidering machine comprising:
- stitch forming means provided in the sewing machine for forming a stitch, the stitch forming means including a loop catcher and a needle bar having a needle at a lower end thereof;
a main motor provided in the sewing machine for driving the stitch forming means;
speed control means provided in the sewing machine for controlling the main motor based on a speed control signal;
an embroidery frame provided in the embroidering unit for holding a workpiece;
moving means provided in the embroidering unit for moving the embroidery frame in a horizontal plane;
storing means provided in the embroidering unit for storing feed data representing a feed of the embroidery frame necessary for forming each of stitches of a plurality of embroidery patterns;
feed control means provided in the embroidering unit for controlling the moving means and for generating a speed control signal based on feed data stored by the storing means; and
first connecting means for connecting the speed control means of the sewing machine to the feed control means of the embroidering unit so as to transmit a speed control signal generated by the feed control means to the speed control means.
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Accused Products
Abstract
An embroidering machine comprised of a common electronic sewing machine having a first controller and an embroidering unit detachably connected to the electronic sewing machine. The operating speed of a main motor of the electronic sewing machine is controlled according to a feed by which an embroidery frame holding a workpiece is moved when forming a stitch of an embroidery pattern. The embroidering unit has a second controller which generates a speed control signal relevant to the feed by which the embroidery frame is moved to form a stitch, the speed control signal is applied through a signal line and a connector to the first controller of the electronic sewing machine, and the first controller controls the operating speed of the main motor according to the speed control signal.
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Citations
17 Claims
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1. An embroidering machine having a sewing machine and an embroidering unit detachably connected to the sewing machine for enabling embroidering operation, the embroidering machine comprising:
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stitch forming means provided in the sewing machine for forming a stitch, the stitch forming means including a loop catcher and a needle bar having a needle at a lower end thereof; a main motor provided in the sewing machine for driving the stitch forming means; speed control means provided in the sewing machine for controlling the main motor based on a speed control signal; an embroidery frame provided in the embroidering unit for holding a workpiece; moving means provided in the embroidering unit for moving the embroidery frame in a horizontal plane; storing means provided in the embroidering unit for storing feed data representing a feed of the embroidery frame necessary for forming each of stitches of a plurality of embroidery patterns; feed control means provided in the embroidering unit for controlling the moving means and for generating a speed control signal based on feed data stored by the storing means; and first connecting means for connecting the speed control means of the sewing machine to the feed control means of the embroidering unit so as to transmit a speed control signal generated by the feed control means to the speed control means. - View Dependent Claims (2, 3, 4, 5)
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6. An embroidering machine including a sewing machine which has a bed and a main motor for sewing embroidery patterns, comprising:
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an embroidering unit detachably connected to the sewing machine, said embroidering unit having; an embroidery frame extending over the bed of the sewing machine for holding a workpiece; moving means for moving said embroidery frame in a horizontal plane over the bed; storing means for storing movement data representing movement of the embroidery frame in the horizontal plane for forming each stitch of a plurality of embroidery patterns; and movement control means for controlling said moving means and for generating a speed control signal based on the movement data; and first connecting means for connecting said movement control means to the sewing machine, wherein the sewing machine has stitch forming means driven by the main motor at a speed designated by the speed control signal. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification