Zigzag sewing machine and automatic-pause control method of zigzag sewing machine

Patent metadata

Field	Value
Publication number	US-9322120-B2
Application number	US-201514611538-A
Country	US
Kind code	B2
Filing date	Feb 2, 2015
Priority date	Jun 18, 2014
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

A zigzag sewing machine including a sewing mechanism; a first storage device that stores pattern data that include attribute data and stitch data; a pattern selection section that sequentially selects optional pattern data stored in the first storage device; a second storage device that stores pattern data that have been selected by the pattern selection section as an arranged combinational pattern; a command data insertion section that inserts and adds pause data at an optional position midway of a pattern data string stored in the second storage device; a pause command section that reads out the pause data and that supplies the pause signal to the sewing machine drive unit; and a display device that displays the combinational pattern, the display device further displaying a pause symbol at a position in the combinational pattern where the pause symbol has been inserted and added.

First claim

What is claimed is:

1. A zigzag sewing machine that sews a combinational pattern, the zigzag sewing machine comprising:
a sewing mechanism that is driven by a sewing machine drive unit, the sewing mechanism forming a stitch pattern by a left-right swing of a vertically reciprocating needle bar mounted with a needle at a lower end thereof and by a forward-rearward feed of a feed dog;
a first storage device that stores a plurality of pieces of pattern data including attribute data related to a pattern type and stitch data that controls the left-right swing of the needle bar and the forward-rearward feed of the feed dog;
a pattern selection section that sequentially selects optional pattern data from the plurality of pieces of pattern data stored in the first storage device;
a second storage device that stores a plurality of pieces of pattern data that have been selected by the pattern selection section as an arranged combinational pattern;
a command data insertion section that inserts and adds pause data at an optional position midway of a pattern data string constituting the combinational pattern stored in the second storage device;
a pause command section that reads out a pause data that has been inserted and added with the command data insertion section and that supplies the pause signal to the sewing machine drive unit; and
a display device that displays the combinational pattern corresponding to the pattern data selected with the pattern selection section, the display device further displaying a pause symbol, the pause symbol corresponding to the pause data that has been inserted and added with the command data insertion section, at a position in the combinational pattern where the pause symbol has been inserted and added.

2. The zigzag sewing machine according to claim 1 , wherein
the command data insertion section includes
the pattern selection section that selects pause data from the plurality of pieces of pattern data stored in the first storage device, and
the second storage device that inserts the pause data that has been selected with the pattern selection section at an optional position midway of the pattern data string constituting the combinational pattern and that stores the pause data.

3. The zigzag sewing machine according to claim 2 , wherein
the pause command section includes
a pattern data readout section that reads out the pattern data of the combinational pattern that is stored in the second storage device,
an attribute data determination section that determines whether attribute data of the pattern data that has been read out with the pattern data readout section is pause data, and
a pause signal supply section that supplies the pause signal to the sewing machine drive unit on a basis of a determination result of the attribute data determination section.

4. The zigzag sewing machine according to claim 3 , wherein
the attribute data determination section includes
a normal pattern data determination section that determines whether the attribute data of the pattern data that has been read out with the pattern data readout section is normal pattern data, and
a pause data determination section that, when the attribute data of the pattern data is determined not to be normal pattern data with the normal pattern data determination section, determines whether the attribute data of the pattern data is pause data.

5. The zigzag sewing machine according to claim 4 , wherein
the command data insertion member further inserts and adds finish-up stitching data and thread cutting data, and
the attribute data determination section further includes
a finish-up stitching data determination section that, when the attribute data of the pattern data is determined not to be pause data with the pause data determination section, determines whether the attribute data of the pattern data is finish-up stitching data, and
a thread cutting data determination section that, when the attribute data of the pattern data is determined not to be finish-up stitching data with the finish-up stitching data determination section, determines whether the attribute data of the pattern data is thread cutting data.

6. The zigzag sewing machine according to claim 5 , wherein
the command data insertion section further inserts and adds color change data, and
the attribute data determination section further includes a color change data determination section that, when the attribute data of the pattern data is determined not to be thread cutting data with the thread cutting data determination section, determines whether the attribute data of the pattern data is color change data.

7. The zigzag sewing machine according to claim 1 , wherein
the pause command section includes
a pattern data readout section that reads out the pattern data of the combinational pattern that is stored in the second storage device,
an attribute data determination section that determines whether attribute data of the pattern data that has been read out with the pattern data readout section is pause data, and
a pause signal supply section that supplies the pause signal to the sewing machine drive unit on a basis of a determination result of the attribute data determination section.

8. The zigzag sewing machine according to claim 7 , wherein
the attribute data determination section includes
a normal pattern data determination section that determines whether the attribute data of the pattern data that has been read out with the pattern data readout section is normal pattern data, and
a pause data determination section that, when the attribute data of the pattern data is determined not to be normal pattern data with the normal pattern data determination section, determines whether the attribute data of the pattern data is pause data.

9. The zigzag sewing machine according to claim 8 , wherein
the command data insertion section further inserts and adds finish-up stitching data and thread cutting data, and
the attribute data determination section further includes
a finish-up stitching data determination section that, when the attribute data of the pattern data is determined not to be pause data with the pause data determination section, determines whether the attribute data of the pattern data is finish-up stitching data, and
a thread cutting data determination section that, when the attribute data of the pattern data is determined not to be finish-up stitching data with the finish-up stitching data determination section, determines whether the attribute data of the pattern data is thread cutting data.

10. The zigzag sewing machine according to claim 9 , wherein
the command data insertion section further inserts and adds color change data, and
the attribute data determination section further includes a color change data determination section that, when the attribute data of the pattern data is determined not to be thread cutting data with the thread cutting data determination section, determines whether the attribute data of the pattern data is color change data.

11. An automatic-pause control method of a zigzag sewing machine, the zigzag sewing machine being driven by a sewing machine drive unit and forming a stitch pattern by a left-right swing of a vertically reciprocating needle bar mounted with a needle at a lower end thereof and by a forward-rearward feed of a feed dog, the method comprising the steps of:
sequentially selecting optional pattern data from a first storage device that stores a plurality of pieces of pattern data including attribute data related to a pattern type and stitch data that controls the left-right swing of the needle bar and the forward-rearward feed of the feed dog;
stor

Assignees

• Janome Sewing Machine Co Ltd

Inventors

• Suzuki Ryosuke

Classifications

• D05B19/12

  characterised by control of operation of machine · CPC title

• D05B19/08 Primary

  Arrangements for inputting stitch or pattern data to memory {; Editing stitch or pattern data} · CPC title

• 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 (program-controlled sewing machines D05B19/00; with devices for automatically controlling movement of work-carrier D05B21/00) · CPC title