JPH0686879A - Sewing machine - Google Patents

Abstract

PURPOSE:To increase the quantity of pattern sewing which can be selected, simplify the selection work, and prevent the erroneous selection of pattern sewing, as for a sewing machine. CONSTITUTION:A desired selection item among a plurality of selection items displayed on a liquid crystal display 7 is designated by turning-operating an item designating dial 8, and the quantity of the pattern seams which can be selected can be increased by the scroll of the displayed contents on the liquid crystal display 7. Since the selected item displayed on the liquid crystal display 7 is selected by operating a selection determining key 9, the selection work can be simplified, and the possibility of the erroneous selection is eliminated. Further, when a plurality of selection items are displayed on the liquid crystal display 7, keeping an interval and with a space interposed, a cursor shifts by skipping the space of the item designating dial 8 is turned ON, and the number of times of operating the item designating dial 8 can be reduced, and the using performance is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine having a sewing function capable of performing various pattern stitches.

[0002]

2. Description of the Related Art In this type of sewing machine, as a selection device for selecting a desired pattern stitch from a plurality of pattern stitches, there are conventionally a direct selection device and a 10-key input selection device. In the direct selection device, a pattern selection key that displays the pattern stitch for each pattern stitch is provided on the front surface of the sewing machine main body, and the pattern selection key that displays the desired pattern stitch is selected from among these multiple pattern selection keys. The pattern sewing is selectively set by operating the button.

Further, in the 10-key input selection device, 10 keys are provided on the front surface of the sewing machine main body, a number is attached to each pattern sewing, and each pattern sewing and the attached number are displayed on the front surface of the sewing machine main body. I am trying to do it. With this configuration,
By inputting a desired pattern stitch number by operating the 10 key, the pattern stitch is selectively set.

[0004]

However, in the above-described direct selection device having the conventional structure, a large number of pattern selection keys must be arranged in a limited space on the front surface of the sewing machine main body, so that the selectable pattern sewing can be performed. There is a problem in that the number of patterns is limited, or the size of each pattern selection key is small and the pattern selection keys are densely packed, making it difficult to visually recognize the pattern stitches displayed in each pattern selection key.

Further, in the 10-key input selection device, it is troublesome to search for the number attached to the pattern sewing to be selected, and it is easy to make a mistake when inputting the number by operating the 10-key, and the selection of the pattern sewing is performed. There was a problem that it was easy to make a mistake.

Therefore, the present invention has been made in order to solve the above problems, and an object thereof is to increase the number of selectable pattern stitches and to easily perform the selecting work. It is an object of the present invention to provide a sewing machine that is capable of surely preventing selection errors.

[0007]

In order to achieve the above object, the sewing machine of the present invention is a sewing machine having a sewing function capable of performing various pattern sewings, and a plurality of selection items such as types of pattern sewings. A display device for displaying, and moving a cursor displayed on the display device to correspond to a desired selection item among a plurality of selection items displayed on the display device. When a plurality of selection items are displayed at intervals with a space in between, cursor movement operation means for skipping and moving the space when moving the cursor is provided, and the selection item corresponding to the cursor is displayed. A selection confirmation key for selection is provided.

[0008]

In the sewing machine having the above-mentioned structure, the cursor moving operation means is operated to specify a desired selection item among the plurality of selection items displayed on the display device, and therefore the display is displayed on the display device. By scrolling the display content, for example, the number of selectable selection items, that is, the number of pattern stitches can be increased. Further, since the selection item is specified by operating the cursor moving operation means and the specified selection item is selected by operating the selection confirmation key, a troublesome work such as searching for the number attached to the pattern sewing to be selected Becomes unnecessary and selection work becomes easy. Moreover, since the selected item is selected while the specified item is displayed on the display device, there is almost no possibility of erroneous operation.

In this case, in particular, when a plurality of selection items are displayed on the display device with a space in between, a space is skipped when the cursor is moved by operating the cursor moving operation means. The cursor moves directly from the selected item to the next selected item. For this reason, the number of operations of the cursor moving operation means is reduced and the usability is improved as compared with the case where the cursor moves via the space portion.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 showing the overall configuration of the sewing machine.
In the above, the sewing machine main body 1 is composed of a sewing machine bed portion 2 and a sewing machine arm portion 3 provided so as to rise from the right side portion of the sewing machine bed portion 2 and extend to the left side. A needle bar 4 is provided at the left end of the sewing machine arm 3 so as to be vertically movable and swingable in the left-right direction, and a sewing needle 5 is attached to the lower end of the needle bar 4.

A thread catcher, for example, a horizontal hook (not shown) is provided in the sewing machine bed 2 so as to rotate in synchronization with the vertical movement of the needle bar 4, and a feed dog (shown in the drawing). No) is provided so as to perform a feed movement in synchronization with the vertical movement of the needle bar 4. Behind the needle bar 4, a cloth pressing bar (not shown) is arranged so as to be movable up and down.
A cloth presser (not shown) is attached to the lower end of the cloth presser bar.

A start / stop switch 6 is provided on the front surface of the left end portion of the sewing machine arm 3 so that it can be pressed. The start / stop of the sewing operation is configured to be performed by turning on / off the start / stop switch 6.

On the front surface of the rising portion of the sewing machine arm portion 3, a liquid crystal display 7, which is a display device, is provided above the front portion. The liquid crystal display 7 is configured to be able to display a plurality of selection items such as types of pattern sewing. Below the liquid crystal display 7 on the front surface of the rising portion of the sewing machine arm 3, for example, an item designation dial 8 which is a cursor moving operation means of the present invention is rotatably provided.

At the center of the item designation dial 8, a selection confirmation key 9 is provided so that it can be pressed. Also,
A clear key 10 is provided on the lower right end portion of the liquid crystal display 7 so that the clear key 10 can be pressed. Here, the item designation dial 8 and the selection confirmation key 9 will be described in detail with reference to FIGS.

As shown in FIG. 2, the item designation dial 8
Has a substantially double-cylindrical shape and is rotatably fitted in a circular mounting hole 11a formed in the front cover 11 of the sewing machine arm 3. Then, the collar portion 12 protruding from the outer peripheral portion on the right end of the item designation dial 8 in FIG.
The dial board 1 is in contact with the opening edge of the dial board 1a.
2 is tightened and fixed to the back surface of the front cover 11 by a screw 14 so as to cover the right end of the item designation dial 8 in FIG. As a result, the item designation dial 8 is held so as not to move in the axial direction (left and right direction in FIG. 2).

On the outer peripheral surface of the collar portion 12 of the item designating dial 8, as shown in FIG. 3, a large number of concave portions 1 for positioning are provided.
2a is formed. On the other hand, a leaf spring 15 is fixed above the flange 12 on the back surface of the front cover 11, and a semicircular convex portion 15a formed at the tip of the leaf spring 15 is a concave portion of the flange 12. 12a is fitted. By this fitting, the item designation dial 8 is held at the rotation stop position. still,
The spring force of the leaf spring 15 is not so strong that the item designation dial 8 can be easily rotated against the spring force of the leaf spring 15.

Here, as shown in FIG. 2, on the back surface of the closing wall portion 18 that closes the front end portion between the outer tubular portion 16 and the inner tubular portion 17 of the item designating dial 8, the support portion 18a is rearward. The movable contact plate spring 19 is attached to the rear end portion of the support portion 18a. On the front surface of the dial substrate 13, a conductor pattern (not shown) with which the contact portion 19a of the movable contact leaf spring 19 contacts is provided.

In this case, when the item designating dial 8 is rotated clockwise, the first and second output terminals of the conductor pattern of the dial substrate 13 are moved in response to the rotation.
A pulse signal P1 as shown in FIGS. 4 (a) and 4 (b)
And P2 are respectively output.
Further, when the item designating dial 8 is rotated counterclockwise, the first and second output terminals of the conductor pattern of the dial substrate 13 are moved from the first and second output terminals of FIG. 5A and FIG. The pulse signals P3 and P4 as shown in () are output respectively.

On the other hand, the selection confirmation key 9 is inserted in the inner cylindrical portion 17 of the item designating dial 8 and moves in the front-back direction (see FIG. 2).
It is configured so that it can be moved in the left and right directions. The rear end portion of the selection confirmation key 9 is in contact with the pressing operation portion of the rubber switch 20 arranged in the center portion of the front surface of the dial substrate 13. The rubber switch 20 has a conductive rubber contact, and the elastic force of the rubber urges the selection confirmation key 9 forward to the position shown in FIG. The selection confirmation key 9 causes the collar portion 9a provided at the rear end thereof to abut on the rear end portion of the inner cylindrical portion 17 of the item designating dial 8.
It is configured to be held in the position shown in FIG.

In this case, when the selection confirmation key 9 is pressed, the rubber switch 20 is turned on only during the pressing operation, and when the pressing operation of the selection confirmation key 9 is stopped, the rubber switch 20 is turned off. ing.

Further, in FIG. 6 showing the electrical construction of the sewing machine, the control circuit 21 is constituted by including a microcomputer, and an internal memory (ROM or RAM) controls the overall sewing operation of the sewing machine. The control program of is stored. The control circuit 21 has a switch signal from the start / stop switch 6, a pulse signal output from the first and second output terminals of the conductor pattern of the dial substrate 13, a switch signal from the rubber switch 20,
A clear signal from the clear key 10 is received.

The memory in the control circuit 21 stores sewing data, data for selecting and setting pattern sewing, and the like. The control circuit 21 is configured to drive and control the stitch forming mechanism 22 including the sewing machine motor and the liquid crystal display 7.

Next, the operation of the sewing machine thus constructed will be described with reference to FIGS. 7 to 22. When the power is turned on, an initial screen as shown in FIG. 7 is displayed on the display screen of the liquid crystal display 7. In this initial screen,
A plurality of selection items indicating the classification of pattern sewing, etc., specifically,
"Practical pattern", "Hiragana", "Katakana", "alphanumeric characters", "decorative pattern", and "adjustment" are displayed.

In the screen of FIG. 7, the selection item highlighted in black and white (the shaded area in FIG. 7) of the plurality of selection items, in this case, "practical pattern" is designated by the item designation dial 8. The selected item is indicated by the cursor. If the item designating dial 8 is rotated clockwise, the cursor (black and white reverse display) moves to the right, and if the item designating dial 8 is moved counterclockwise, the cursor (black and white reverse display) moves to the left. Moving. The amount of movement of the cursor corresponds to the amount of rotation of the item designation dial 8.

The rotation direction and the rotation amount of the item designating dial 8 are detected based on the pulse signals output from the first and second output terminals of the conductor pattern of the dial substrate 13. . Specifically, when the pulse signals P1 and P2 shown in FIGS. 4 (a) and 4 (b) are output from the first and second output terminals, the pulse signal at the falling point of the pulse signal P1 Since the output level of P2 is high, it can be seen that the item designation dial 8 has been rotated clockwise. Then, the amount of rotation of the item designating dial 8 in the clockwise direction can be known from the number of pulses of each of the pulse signals P1 and P2.

The pulse signals P3 and P4 shown in FIGS. 5A and 5B are output from the first and second output terminals.
Is output, the output level of the pulse signal P4 at the trailing edge of the pulse signal P3 is low, which indicates that the item designation dial 8 has been rotated counterclockwise. Then, the counterclockwise rotation amount of the item designating dial 8 can be known from the number of pulses of each pulse signal P3, P4.

When selecting "Hiragana" in the screen state shown in FIG. 7, the item designation dial 8 is rotated clockwise to move the cursor to the right to correspond to "Hiragana" ( (See FIG. 8). Then, in this screen state, the selection confirmation key 9 is pressed. As a result, multiple selection items that indicate the specific pattern sewing of "Hiragana"
As shown in FIG. 9, it is displayed on the display screen of the liquid crystal display 7. In this case, on the display screen of the liquid crystal display 7, the pattern stitches of the five characters in the first "A" row are displayed as a part of the plurality of pattern stitches of "Hiragana".

Here, in order to display other characters (pattern stitch) of "Hiragana", the display contents of the display screen of the liquid crystal display 7 may be scrolled by rotating the item designation dial 8. About the specific operation of this scroll,
This will be described below. On the screen shown in FIG. 9, the item designation dial 8
Turn clockwise to move the cursor to the rightmost character "O".
When the item designation dial 8 is further rotated in the clockwise direction after being moved to, the display contents scroll as shown in FIG. 10, and the five characters "ka" to "" in the "ka" line are scrolled. "
Will be displayed. In this case, immediately after scrolling, the cursor designates the character "ka" at the left end, and the character "ka" is displayed in black and white in reverse.

Similarly, when the item designation dial 8 is rotated clockwise to scroll the display contents, the display contents are switched line by line. Incidentally, FIG.
When the display content of the screen shown in (1) is scrolled in the reverse direction (to the left), the item designation dial 8 is simply rotated in the counterclockwise direction, and is performed in substantially the same manner as the above-described scroll to the right. Such a scroll operation is configured to be performed in almost the same manner on other display screens when the selection items are partially displayed on the display screen.

Now, when the above-mentioned scrolling operation is executed and three characters in the "ya" line are displayed on the display screen of the liquid crystal display 7 as shown in FIG. 11, the three characters "ya" are displayed. , "Yu" and "Yo" are displayed with a space in between. In this case, move the cursor to the character "or"
When the item designation dial 8 is rotated clockwise in the state of being positioned at, the cursor moves by one character (one item), and as shown in FIG. 12, the cursor moves to the space next to the character “ya”. You can skip to move to the position of the character "Yu".

Then, in this screen state, when the item designating dial 8 is similarly rotated in the clockwise direction to move the cursor by one character, as shown in FIG. 13, the cursor indicates the character "Y". It skips the adjacent space and moves to the position of the letter "yo". When the item designation dial 8 is further rotated in the clockwise direction in this screen state, the display content scrolls, and as shown in FIG.
The five characters of the line are displayed.

[Wa], [o], and [n] on the display screen
As shown in FIG. 15, when the three characters are displayed with a space in between, and when the four characters "tsu", "ya", "yu", and "yo" are displayed on the display screen. As shown in FIG. 16, when the characters are displayed with a space in between, the cursor is moved across the space in the same manner as in the case of the “and” line described above. , The cursor is supposed to fly in space. Incidentally, in the display screen shown in FIG. 16, when the item designating dial 8 is rotated clockwise after the cursor is associated with “”, the display screen is scrolled and
The screen shown in FIG. 5, that is, the screen showing the five characters in the “A” line is returned.

On the other hand, in the screen state shown in FIG. 9, for example, to select the character "e", the item designation dial 8 is rotated clockwise to move the cursor to the character "e".
The character "e" is specified. In this screen state, the selection confirmation key 9 is pressed to select the character "e". By this selection operation, the display contents as shown in FIG. 17 are displayed on the liquid crystal display 7. That is, the selected character "e" is displayed at the left end of the upper row. Similarly, when the next character is designated and selected, that character is displayed to the right of the character "e" in the upper row of the display screen.

Here, when it is desired to change the selected character to another character, when the clear key 10 is pressed, the screen returns to the previous screen each time the clear key 10 is pressed. Specifically, when the clear key 10 is pressed while the two characters "e" and "o" are selected and displayed in the upper row of the display screen, they are displayed on the right side of the upper row of the display screen. The one character "O" that has been written is erased, and the screen returns to the screen state shown in FIG. When the clear key 10 is pressed in the screen state shown in FIG. 17, the character “e” displayed in the upper row of the display screen is erased. still,
When the clear key 10 is pressed in a screen state in which no characters are selected, that is, in a screen state in which five hiragana characters are displayed, the previous screen of FIG. 8 (initial screen)
To return to.

When one character "e" is selected and set, that is, in the screen state shown in FIG. 17, when the start / stop switch 6 is pressed and turned on, the sewing operation is started. When the sewing operation is started, the liquid crystal display 7
On the display screen of, the lower row is erased and the character "e" in the upper row is highlighted. As a result, it is possible to know that the sewing operation of the character "e" is in progress.

After this, when the sewing operation of the character "e" is completed, the screen returns to the screen before starting the sewing operation, which is shown in FIG. After that, when it is desired to select another pattern sewing, the pressing operation of the clear key 10 is repeated to sequentially return to the previous screen, and to return to the initial screen shown in FIG. 7 or 8. Then, after returning to the initial screen, another pattern sewing is selected and the sewing operation can be executed in substantially the same manner as the above-described operation.

On the other hand, in the initial screen, as shown in FIG. 18, when the item designating dial 8 is further rotated clockwise while the cursor is moved to "adjustment", as shown in FIG.
As shown in, the cursor moves to the selection item of "practical pattern". On the contrary, as shown in FIG. 7, with the cursor corresponding to the selection item of "practical pattern",
When the item designation dial 8 is rotated counterclockwise, as shown in FIG.
As shown in FIG. 8, the cursor moves to the “adjustment” selection item.

Next, the case where the selection item of "adjustment" is selected will be described below. When the selection confirmation key 9 is pressed with the cursor corresponding to the selection item of "adjustment" as shown in FIG. 18, as shown in FIG. 19, "shading of screen" and "adjustment of pattern" are performed. The screen will display the selection items of. In this case, the cursor is located on the “shade of screen” side. If you want to select "Pattern adjustment", rotate the item designation dial 8 clockwise.
Move the cursor to the right to correspond to "pattern adjustment" (see FIG. 20).

In the display screen of FIG. 20, even if the item designation dial 8 is further rotated in the clockwise direction, the cursor remains at the selection item of "pattern adjustment". On the contrary, in the screen state shown in FIG.
When the item designation dial 8 is rotated counterclockwise, the cursor moves to the left and corresponds to the selection item of "shading of screen" (see FIG. 19). In this screen state, the item designation dial 8
Even if is further rotated counterclockwise, the cursor remains at the selection item of "shading of screen".

As described above, the reason why the cursor movement is restricted in the display screens of FIGS. 19 and 20 is the above-mentioned initial screen when the number of selection items displayed on the screen is as small as two. If the cursor is moved between two selection items each time the item designation dial 8 is rotated clockwise or counterclockwise like the cursor movement in, the item designation dial 8 is rotated by one selection item or more. This is because an operation error may occur in which the cursor is moved too much due to excessive movement.

On the other hand, when the cursor is moved from "adjustment" to "practical pattern" when six selection items are displayed as in the initial screen shown in FIG. If the cursor is controlled so that it does not move even if the item designation dial 8 is rotated clockwise while it is in the "Adjustment" position, the item designation dial 8 is rotated counterclockwise by five selection items. However, there is a problem that the operation is troublesome. Therefore, the cursor movement control is appropriately set according to the number of selection items displayed on the display screen.

Now, in the case of adjusting the pattern, FIG.
When the selection confirmation key 9 is pressed in the screen state shown in
The screen shown in FIG. 21 is displayed. Then, in this screen state, the test pattern is sewn. If the sewing result is abnormal, the cursor is moved to the selection item on the side corresponding to the pattern collapse. For example, as shown in FIG. 22, the item designation dial 8 is rotated clockwise to move the cursor from the selection item “end” in the middle to the selection item on the right side. In the screen state shown in FIG. 22,
Even if the item designation dial 8 is further rotated clockwise,
The cursor does not move. Also, when the cursor is moved to the selection item on the left side of FIG. 21, even if the item designation dial 8 is further rotated counterclockwise in that state, the cursor does not move.

Then, in the screen state shown in FIG.
Sewing the test pattern again. If the sewing result is abnormal, the above-mentioned operation is repeated. On the other hand, when the normal test pattern is sewn, the item designation dial 8 is rotated to bring the cursor to the selection item of "end" in the middle, and in that state, the selection confirmation key 9 is pressed. This returns to the display screen shown in FIG. Further, when the clear key 10 is pressed in this screen state, the screen returns to the previous screen of FIG.

According to this embodiment having such a configuration, the item designation dial 8 is rotated to designate a desired selection item among the plurality of selection items displayed on the liquid crystal display 7. Therefore, if the display content displayed on the liquid crystal display 7 is scrolled, for example, the number of selectable selection items, that is, the number of pattern stitches can be increased.

Since the selection item is selected by rotating the item specification dial 8 and the selection item is selected by operating the selection confirmation key 9, unlike the conventional structure, the desired pattern sewing is performed. There is no need for troublesome work such as searching for the number attached to, and selection work becomes easy. Moreover, the selected selection item is the liquid crystal display 7
Since the selection item is selected in the state displayed in, there is almost no possibility of erroneous operation.

Further, in the above-described embodiment, particularly when a plurality of selection items are displayed on the display screen of the liquid crystal display 7 with a space therebetween, as shown in FIG. 11 to FIG. When the dial 8 is turned to move the cursor, the space is skipped and the cursor is moved directly from the selected item to the next selected item. Therefore, the number of operations of the item designating dial 8, that is, the amount of rotation operation in this case, is smaller than that in which the cursor moves via the space portion, and the usability is further improved.

Further, in the above embodiment, the number of selection items displayed on the display screen of the liquid crystal display 7 is two and three.
When the number is small, as shown in FIGS. 19 to 22, since the cursor movement is restricted so that the cursor does not move even when the item designation dial 8 is rotated, the cursor moves too much. It is possible to prevent the occurrence of such an operation error.

In the above embodiment, the item designating dial 8 is rotatably provided as the cursor moving operation means, but the invention is not limited to this.
The four cursor movement keys for moving the cursor in the left and right directions may be provided so that they can be pressed, and the plus operation key and the minus key can be used as the two cursor movement keys for moving the cursor in the left and right directions. The operation keys may be provided so that they can be pressed.

[0049]

As described above in detail, the sewing machine of the present invention skips the space when moving the cursor when a plurality of selection items are displayed on the display device with a space therebetween. Since the movement is controlled so that the number of selectable pattern stitches can be increased, the selection work can be easily performed, and moreover, mistaken selection can be surely prevented, and the cursor moving operation means can be performed. This has an excellent effect that the number of operations of can be reduced and the usability can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an entire sewing machine showing an embodiment of the present invention.

[Figure 2] Vertical side view around the item designation dial

[Figure 3] Vertical front view around the item designation dial

FIG. 4 is a time chart showing pulse signals output when the item designation dial is rotated clockwise.

FIG. 5 is a time chart showing pulse signals output when the item designation dial is rotated counterclockwise.

FIG. 6 is a block diagram.

FIG. 7 is a front view showing a display screen of a liquid crystal display.

FIG. 8 is a front view showing another display screen of the liquid crystal display.

FIG. 9 is a front view showing another display screen of the liquid crystal display.

FIG. 10 is a front view showing another display screen of the liquid crystal display.

FIG. 11 is a front view showing another display screen of the liquid crystal display.

FIG. 12 is a front view showing another display screen of the liquid crystal display.

FIG. 13 is a front view showing another display screen of the liquid crystal display.

FIG. 14 is a front view showing another display screen of the liquid crystal display.

FIG. 15 is a front view showing another display screen of the liquid crystal display.

FIG. 16 is a front view showing another display screen of the liquid crystal display.

FIG. 17 is a front view showing another display screen of the liquid crystal display.

FIG. 18 is a front view showing another display screen of the liquid crystal display.

FIG. 19 is a front view showing another display screen of the liquid crystal display.

FIG. 20 is a front view showing another display screen of the liquid crystal display.

FIG. 21 is a front view showing another display screen of the liquid crystal display.

FIG. 22 is a front view showing another display screen of the liquid crystal display.

[Explanation of symbols]

1 is a sewing machine main body, 2 is a sewing machine bed portion, 3 is a sewing machine arm portion, 5 is a sewing needle, 7 is a liquid crystal display (display device),
Reference numeral 8 is an item designation dial (cursor moving operation means), 9 is a selection confirmation key, 10 is a clear key, and 21 is a control circuit.

Claims (1)

[Claims] 1. A sewing machine having a sewing function capable of executing various pattern stitches, a display device for displaying a plurality of selection items such as types of pattern stitches, and a cursor displayed on the display device for moving. The cursor is adapted to correspond to a desired selection item among a plurality of selection items displayed on the display device, and the cursor is displayed when the plurality of selection items are displayed on the display device with a space therebetween. A sewing machine, comprising: a cursor moving operation means for skipping and moving the space when moving the machine, and a selection confirmation key for selecting a selection item corresponding to the cursor.