Household type sewing machine having microprocessor control

In a household type sewing machine having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto and first static memory means for retrievably storing a first plurality of different predetermined stitch patterns each having associated retrievably stored bight and feed data corresponding to predetermined positional coordinates of said needle bar and feed means for defining associated stitch position coordinates for the stiches comprising said stitch patterns;

• the improvement comprising microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively processing said stored stitch pattern data from said static memory means and providing output control signals to said actuator means based on said selectively processed stitch pattern data for controllably adjusting at least the transverse position of said needle bar means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for controllably redefining said stored stitch pattern data for selectively creating output control signals for said actuator means different from the output control signals corresponding to any one of said stored stitch patterns whereby at least the transverse position of said needle bar means may be selectively varied to redefine a stitch pattern arrangement different from any one of said stored stitch patterns;
• and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of at least one stored stitch pattern and the functional operation to be performed on said associated selected stored stitch pattern data for controllably adjusting at least the transverse position of said needle bar means for selectively providing a final stitch pattern arrangement from said plurality of stored stitch patterns, said microcomputer processing means comprising means capable of interpolating said stored stitch pattern data for a selected stitch pattern in response to said input control signals provided from said keyboard means for redefining said stitch position coordinates associated with said selected stitch pattern by creating new stitch position coordinates in said selected stitch pattern for generating an increased number of stitches for said selected stitch pattern without varying the shape associated with said selected stitch pattern, whereby the density and/or proper length of said selected stitch pattern may be controlled.

In a household type sewing machine having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto and first static memory means for retrievably storing a first plurality of different predetermined stitch patterns each having associated retrievably stored bight and feed data corresponding to predetermined positional coordinates of said needle bar and feed means for defining associated stitch position coordinates for the stitches comprising said stitch patterns;

• the improvement comprising microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively processing said stored stitch pattern data from said static memory means and providing output control signals to said actuator means based on said selectively processed stitch pattern data for controllably adjusting at least the transverse position of said needle bar means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for controllably redefining said stored stitch pattern data for selectively creating output control signals for said actuator means different from the output control signals corresponding to any one of said stored stitch patterns whereby at least the transverse position of said needle bar means may be selectively varied to redefine a stitch pattern arrangement different from any one of said stored stitch patterns;
• and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of at least one stored stitch pattern and the functional operation to be performed on said associated selected stored stitch pattern data for controllably adjusting at least the transverse position of said needle bar means for selectively providing a final stitch pattern arrangement from said plurality of stored stitch patterns, said static memory means comprising means for storing only said bight or said feed data which varies for the stitches comprising each of said plurality of stored stitch patterns for enabling optimal retrieval of said stitch pattern data by said microcomputer means in response to said input conntrol signals provided from said keyboard means.

In a household type sewing machine having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto and first static memory means for retrievably storing a first plurality of different predetermined stitch patterns each having associated retrievably stored bight and feed data corresponding to predetermined positional coordinates of said needle bar and feed means for defining associated stitch position coordinates for the stitches comprising said stitch patterns;

• the improvement comprising microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively processing said stored stitch pattern data from said static memory means and providing output control siggnals to said actuator means based on said selectively processed stitch pattern data for controllably adjusting at least the transverse position of said needle bar means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for controllably redefining said stored stitch pattern data for selectively creating output control signals for said actuator means different from the output control signals corresponding to any one of said stored stitch patterns whereby at least the transverse position of said needle bar means may be selectively varied to redefine a stitch pattern arrangement different from any one of said stored stitch patterns;
• and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of at least one stored stitch pattern and the functional operation to be performed on said associated selected stored stitch pattern data for controllably adjusting at least the transverse position of said needle bar means for selectively providing a final stitch pattern arrangement from said plurality of stored stitch patterns, said static memory means plurality of stored stitch patterns comprising an initial tacking stitch pattern and a straight stitch pattern, said keyboard means comprising means for providing said input control signals for initiating selection of said initial tacking stitch pattern coupled with said straight stitch pattern, said microcomputer means providing output control signals to said actuator means for controlling said position of said needle bar means and said feed means to provide said tacking stitch pattern followed by said straight stitch pattern as said stitch pattern arrangement in response to said output control signals, said tacking stitch pattern only being provided for a predetermined number of stitches, said straight stitch pattern being continuously providable thereafter.

In a household type sewing machine having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, and actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto;

• the improvement comprising static memory means for retrievably storing stitch pattern data capable of providing a plurality of different composite stitch pattern arrangements having associated bight and feed data corresponding to stitch positional coordinates of said needle bar and feed means;
• microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively processing said stored stitch pattern data from said static memory means and providing output control signals to said actuator means based on said selectively processed stitch pattern data capable of selectably controllably adjusting the transverse position of said needle bar means and the positional displacement of said feed means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for selectively creating output control signals for said actuator means capable of defining a selected composite stitch pattern arrangement;
• and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of said stored stitch pattern data and the functional operation to be performed on said selected stored stitich pattern data for selectably controllably adjusting the transverse position of said needle bar means and the positional displacement of said feed means for selectively providing said selected composite stitch pattern arrangement from said stored stitch pattern data, said keyboard means comprising a first common key selector having a plurality of modes for initiating selection of at least any one of a plurality of said stored stitch patterns in a first mode and for varying the positional coordinate data associated with said one selected stored stitch pattern in a second mode for providing said input control signals for enabling said selecting and redefining of said stored stitch pattern for providing said different stitch pattern arrangement whereby said sewing machine is capable of selectably creating composite stitch pattern arrangements which are variations of said stored stitch pattern data.

In a household type sewing maching having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto and first static memory means for retrievably storing a first plurality of different predetermined stitch patterns each having associated retrievably stored bight and feed data corresponding to predetermined positional coordinates of said needle bar and feed means for defining associated stitch position coordinates for the stitches comprising said stitich patterns;

• the improvement comprising microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively processing said stored stitch pattern data from said static memory means and providing output control signals to said actuator means based on said selectively processed stitch pattern data for controllably adjusting at least the transverse position of said needle bar means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for controllably redefining said stored stitch pattern data for selectively creating output control signals for said actuator means different from the output control signals corresponding to any one of said stored stitch patterns whereby at least the transverse position of said needle bar means may be selectively varied to redefine a statich pattern arrangement different from any one of said stored stitch patterns;
• and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of at least one stored stitch pattern and the functional operation to be performed on said associated selected stored stitch pattern data for controllably adjusting at least the transverse position of said needle bar means for selectively providing a final stitch pattern arrangement from said plurality of stored stitch patterns, said keyboard means including means for enabling said positional coordinate data to be continuously varied during the sewing of said selected stitch pattern.

In a household type sewing machine having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, and actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto;

• the improvement comprising static memory means for retrievably storing stitch pattern data capable of providing a plurality of different composite stitch pattern arrangements having associated bight and feed data corresponding to stitch positional coordinates of said needle bar and feed means;
• microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively processing said stored stitch pattern data from said static memory means and providing output control signals to said actuator means based on said selectively processed stitch pattern data capable of selectably controllably adjusting the transverse position of said needle bar means and the positional displacement of said feed means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for selectively creating output control signals for said actuator means capable of defining a selected composite stitch pattern arrangement;
• and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of said stored stitch pattern data and the functional operation to be performed on said selected stored stitch pattern data for selectably controllably adjusting the transverse position of said needle bar means and the positional displacement of said feed means for selectively providing said selected composite stitch pattern arrangement from said stored stitch pattern data, said keyboard means comprising a first common key selector having a plurality of modes for initiating selection of at least any one of a plurality of said stored stitch patterns in a first mode and for varying the positional coordinate data associated with said one selected stored stitch pattern in a second mode for providing said input control signals for enabling said selecting and redefining of said stored stitch pattern for providing said different stitch pattern arrangement whereby said sewing machine is capable of providing stitch pattern arrangements corresponding to said stored stitch patterns per se as well as to selectably creatable variations thereof.