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.
23 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