Classifications

• • D—TEXTILES; PAPER
  • D05—SEWING; EMBROIDERING; TUFTING
  • D05B—SEWING
  • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
• • D—TEXTILES; PAPER
  • D05—SEWING; EMBROIDERING; TUFTING
  • D05B—SEWING
  • D05B19/00—Programme-controlled sewing machines
  • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
  • D05B19/04—Sewing machines having electronic memory or microprocessor control unit characterised by memory aspects
  • D05B19/10—Arrangements for selecting combinations of stitch or pattern data from memory ; Handling data in order to control stitch format, e.g. size, direction, mirror image
  • D05B19/105—Physical layout of switches or displays; Switches co-operating with the display
• • D—TEXTILES; PAPER
  • D05—SEWING; EMBROIDERING; TUFTING
  • D05B—SEWING
  • D05B19/00—Programme-controlled sewing machines
  • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
  • D05B19/04—Sewing machines having electronic memory or microprocessor control unit characterised by memory aspects
  • D05B19/08—Arrangements for inputting stitch or pattern data to memory ; Editing stitch or pattern data

Definitions

• the present invention relates to an arrangement for making a seam choice, especially related to a built-in sewing guide in an electronic sewing machine with an electronic seam memory for the supply of stitch data to the needle positioning and cloth feeding mechanisms.
• Electronic fancy seam data systems for sewing machines have, in general, among other things an input selector, e.g. a set of push button switches with a row of symbols showing the seam the machine will sew, when a push button referred to a certain symbol is actuated.
• the choice of one of the several symbols and eventually other controls must, however, be made by the operator which can be a difficult problem with regard to the cloth quality and the appropriateness of the several seams.
• Most sewing machines have a manual which provides advices to the adjustment of the machine.
• the present invention is related to a system for making the information on the several alternatives for every operation accessible which is introduced and stored in the memory of the machine.
• the seams which are less suitable in a certain combination of texture and operation are not shown on this information.
• switch means on which someone of these seams can be selected.
• the input selector supplies a start address to the counter, and feeding of ideal data for cloth and operation in question is effected from the stitch memory.
• FIG. 1 a control panel on the front surface of a sewing machine
• Fig. 2 the same panel but a certain adjustment of a rotary control thereon
• Fig. 3 a wiring diagramme of the indicating means in the- panel
• Fig. 4 a wiring diagramme of the input selector in the panel.
• buttons 14 and a rotary control 15 which are used for informing the electronic system 16 of the machine of a certain seam selection.
• the rotary control is used for making a preadjust- ment on a series of seam patterns, e.g. utility seams, of which at least one can be selected on the buttons 14.
• Such a rotary control is suitably constituted of a binary converter with for instance four output lines 17 on which an output four bit code represents a certain adjustment on the rotary control.
• the several positions are marked by text on the panel stating, in the shown embodiment, the texture of the stuff to be sewn.
• the rotary control can, for instance, be designed as shown in Fig.
• FIG. 3 which also shows the connection of a number of lamps 18 (light emitting diodes) to a memory unit 19 constituted of four partial memories which are generally denoted 74S 278 in so called TTL-technics.
• the wires 17 are branched to every one of the partial memories which have 8 outputs 20-23 each.
• the memory unit is programmed for supplying current on a special combination of wires in the groups 20-23 corresponding to the input code on the wires 17. First said wires supply current to light the corresponding lamps, thereby inform the operator about the seam patterns which for the priorly made preadjustment of the rotary control can be selected.
• FIG. 2 an example of a preadjustment of the control 15 and a couple of rows of illuminated text 24 are shown indicating the several operations that may be effected on the stuff pointed out by the control 15.
• the text in every square 25 made of transparent material, is illuminated from behind by the corresponding lamp. When light is out the text is vanished. Below the text squares another row of squares 26 is positioned showing a symbol of the seam described by the text in the sqare above. Besides a description of the operation the text may include practical hints on extra measures for the accomplishment of the seam, for instance, changing the presser foot and the like.
• the buttons 14 the zigzag width and the stitch length can be adjusted individually on a couple of controls 27, 28.
• the information by the illuminated text squares is used for the completion of a seam selection, which is made so that the operator pushes a button 14, whereby a so called seam selection code (or start address) is created and conducted to a start address memory in the electronic unit.
• This unit is composed of many parts in the form of circuit cards and components, which are not here separately stated or described, as a plurality of embodiments are priorly known and the invention does not refer to a special embodiment of the electronic unit for controlling the needle and feeder. However, an example of such a unit is described in the Swedish patent specification No. 7910201-8, which may be referred to for the sake of completeness.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Sewing Machines And Sewing (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20340559

Family Applications (1)

Country Status (7)

Families Citing this family (9)

Citations (1)

Family Cites Families (8)

• 1980
  • 1980-03-19 SE SE8002139A patent/SE420328B/sv not_active IP Right Cessation
• 1981
  • 1981-03-19 AU AU69256/81A patent/AU542155B2/en not_active Ceased
  • 1981-03-19 JP JP56500995A patent/JPH0156794B2/ja not_active Expired
  • 1981-03-19 WO PCT/SE1981/000090 patent/WO1981002751A1/en unknown
  • 1981-03-19 EP EP81850049A patent/EP0036404B1/en not_active Expired
  • 1981-03-19 US US06/325,429 patent/US4422394A/en not_active Expired - Lifetime
  • 1981-03-19 DE DE8181850049T patent/DE3164089D1/de not_active Expired

Patent Citations (1)

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