JPH0475682A - Sewing machine - Google Patents

Abstract

PURPOSE:To inform the operation to be executed in the next time to a user to be easily understandable by providing a display control means for switching a screen display and displaying it on a display part, in accordance with a variation of an execution state. CONSTITUTION:In front of an arm part 3 of a sewing machine main body 1, a display part 11 is provided, and a screen display of this display part 11 is controlled by a controller 8. Also, the screen display for teaching an operating method, executing a warning against a misoperation and information of an operating state of a sewing machine, is executed to a user. In a ROM 7, screen display data for displaying them on the display part 11 is stored in advance, and it functions as a storage means. Moreover, in each part of the sewing machine main body 1, various detecting means for detecting in detail the execution state of the function are provided, and the controller 8 reads out successively the screen display data from the ROM 7 in accordance with a variation of the execution state detected by these detecting means and the display part 11 displays it, while switching the screen display, and it functions as a display control means.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Industrial Application Field) The present invention relates to a sewing machine equipped with a display section for displaying screen information.

(Prior Art) Some household sewing machines, generally referred to as computerized sewing machines, are provided with a display section consisting of an LCD on the main body of the sewing machine. This display section is used to display a pattern selected by the user when performing pattern sewing, and to display an error message when the user makes an erroneous operation.

- For example, when the user operates the switch to wind the bobbin thread using the bobbin winding function of the sewing machine, and the sensor detects that there is no bobbin on the bobbin shaft, the display will The words ``Bobbin not set'' are displayed on the screen based on the screen display data stored in the ROM in advance.

(Problem to be solved by the invention) In the conventional system, error messages displayed on the display include the above-mentioned "Bobbin not set" and "Thread breakage" based on the thread breakage detected by the thread breakage sensor. confirmation",
When you try to start sewing without lowering the presser foot lever,
There were presser foot levers, etc., but these only displayed one message for a certain function.

However, some of the functions of sewing machines are complex and involve multiple steps of operations that the user must perform in order to execute them. It was sometimes difficult to understand what operation to perform next.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a sewing machine that can inform the user of the next operation to be performed in an easy-to-understand manner.

[Structure of the Invention] (Means for Solving the Problems) The sewing machine of the present invention includes a display section that displays a screen for teaching, warning, or informing the user of a situation, and a display section that displays a screen for teaching, warning, or informing a user of a situation, and a display section that displays a screen for providing instructions, warnings, or status notifications to the user, and a display section that displays a screen for providing instruction, warning, or status notification to the user, and a display section that displays a screen for providing instructions, warnings, or status notifications to the user, and a display section that displays a screen for providing instructions, warnings, or status notifications to the user, and a display section that displays a screen for providing instructions, warnings, or status notifications to the user, and a display section that displays a screen for providing instructions, warnings, or status notifications to the user, and a display section that displays a screen for providing instructions, warnings, or status notifications to the user, and a display section that displays a screen for teaching, warning, or informing the user of the situation. a storage means storing screen display data for a plurality of teachings, warnings, or situation notifications;
The present invention is characterized by a configuration that includes a detection means for detecting the performance status of each function one by one, and a display control means for switching the screen display and displaying it on the display unit according to the change in the performance status detected by the detection means.

(Operation) According to the above means, the detection means detects the execution status of each function one by one, and the display control means displays a teaching, warning, or status notification screen on the display unit according to the execution status. In this case, the storage means stores multiple teachings, warnings, or screen display data for status notification according to the performance status, and based on this, the screen display is switched according to the performance status of the function, which changes from time to time. This allows even complex operations to be displayed step by step on the screen.

(Example) An example of the present invention will be described below with reference to the drawings.

First, FIG. 3 shows the entire sewing machine main body 1. The sewing machine main body 1 includes a bed part 2 and an arm part 3 integrally provided so as to extend upward and left from the right part of the bed part 2. It consists of A needle bar 5 having a sewing needle 4 is provided at the tip of the arm portion 3, and the needle bar 5 has a sewing needle 4 attached thereto.
Correspondingly, a horizontal hook mechanism, cloth feeding mechanism, etc. (not shown) are provided. Although not shown, a motor, a transmission mechanism, etc. for driving the needle bar 5, cloth feed teeth, etc. are provided inside the sewing machine main body 1. Each of these mechanisms includes a CPU 6. as shown in FIG. It is controlled by a control device 8 consisting of a ROM 7 and the like.

Further, on the front side of the rising part of the arm part 3, there is an operation panel 10 having various selection switches 9, etc. for selecting sewing methods such as straight stitch, blind stitch, buttonhole stitch, and patterns such as letter patterns and picture patterns. is provided. When the selection switch 9 is operated, the control device 8 controls each of the mechanisms based on the control program and sewing work data stored in the ROM 7 in advance, so that various sewing works are executed. It has become so. At this time, detection signals from a plurality of sensors and switches as described later are input to the control device 8, and the execution of each operation is controlled according to the detection signals. ing. The sewing machine main body 1 is configured to have functions such as bobbin winding in addition to various sewing operations.

Now, on the front surface of the arm section 3, a display section 11 made of, for example, an LCD is provided. The screen display on the display unit 11 is controlled by the control device 8 as shown in FIG.
It is controlled via a D controller 13 and an LCD driver 12. As a result, the display section 11 not only displays the pattern selected by the user using the selection switch 9, but also teaches the user how to operate the pattern.

A screen is now displayed to warn against erroneous operation or to notify the operating status of the sewing machine. The ROM 7 stores in advance screen display data for displaying them on the display unit 11. In this case, as in the specific example described later, the screen display data is
A plurality of predetermined functions are stored depending on the performance status thereof.

In this way, the ROM 7 functions as a storage means according to the present invention.

Although not shown in detail, various detection means according to the present invention are provided at various locations on the sewing machine main body 1 for detecting the state of performance of functions one by one.

In this embodiment, as shown in FIG. 2, a plurality of sensors and switches as described below are provided as detection means. That is, the presser switch 17 detects the vertical position of the presser lever 14, the BH lever switch 18 detects the vertical position of the buttonhole lever 15, the buttonhole switch 19 determines the size of the buttonhole, and the presence or absence of the side cutter device. Side cutter switch 20 that detects
゜Frost thickness potentiometer 21 that detects the fabric thickness in conjunction with the presser foot lever 14, copying stitch sensor 22 that detects the fabric edge position in edge stitching mode, thread breakage sensor 23 that detects needle thread breakage, and detects the speed of the main motor. motor speed sensor 24, which is the basis of the sewing operation, a motor timing sensor 25, which is the basis of the sewing operation, a start/stop switch 26, also shown in FIG. Lever switch 27
, a bobbin set confirmation switch 28 that detects whether a bobbin is set on a bobbin winding shaft (not shown), a bobbin winding amount detector 29 that detects the amount of winding of the bobbin thread, and the like.

The control device 8 is configured to sequentially read screen display data from the ROM 7 and display it on the display section 11 while switching the screen display according to changes in the performance status detected by these detection means. , the control device 8 functions as display control means according to the present invention.

Next, the operation of the above configuration will be described using a specific example.

First, as an example, a case where the user uses the bobbin winding function to execute bobbin winding will be described with reference to FIGS. 1 and 4 as well.

Fig. 1 shows the display section 1 according to the execution status of the bobbin winding function.
1 is a flowchart showing how the display of No. 1 is switched. Here, when winding the bobbin thread, the user first sets the bobbin on the bobbin winding shaft and operates the bobbin winding lever to move the bobbin to the setting side. By positioning this bobbin winding lever on the set side, the power of the drive shaft that drives the needle bar 5 is transmitted to the bobbin winding shaft. If the bobbin winding lever is not on the set side (No in step s1), a display corresponding to the current operating status of the sewing machine main body 1 is displayed on the display section 11 (not shown) (step S2). When the bobbin winding lever is positioned on the set side, this is detected by the bobbin winding lever switch 27 (Yes in step s1), and the process proceeds to the next step S3.

In step S3, it is determined by the detection of the bobbin set confirmation switch 28 whether or not the bobbin is set on the bobbin winding shaft. If the bobbin is not currently set on the bobbin winding shaft, a screen display indicating that the bobbin is not set is displayed on the display section 11 in step S4. Here, for example, as shown in FIG. 4(a), the words "Bobbin is not set." are displayed on the screen of the display unit 11 along with a picture indicating that there is no bobbin on the bobbin winding shaft. It is. The user can easily understand by looking at this that the bobbin must be set next.

On the other hand, if the bobbin is already set on the bobbin winder shaft or the user sees the above display and sets the bobbin (
(Yes in step S3), display section 1 in step S5.
The screen display No. 1 is switched to a screen display indicating that the bobbin winding is ready.

At this point, for example, as shown in Figure 4 (b), click [Preparation for bobbin winding]. Press the start button. '' are displayed on the screen of the display unit 11 along with a picture showing that the bobbin is set on the bobbin winding shaft. The user can easily understand that it is only necessary to press the start/stop switch 26 at this point.

In this state, when the start/stop switch 26 is pressed (Yes in step s6), the bobbin winding operation is started.

During this bobbin winding work, the bobbin thread winding amount detector 29
detects the progress of winding the bobbin thread one by one, and the display on the display section 11 is sequentially switched based on this. That is, step S
At step 7, the bobbin thread winding amount is detected by the bobbin thread winding amount detector 29. Although not shown, this detection is performed based on the fact that the lever of the bobbin thread winding amount detector 29 comes into contact with the outer periphery of the thread wound around the bobbin, and its position changes as the work progresses. It has become. Then, until the bobbin thread winding amount reaches an appropriate amount (NO in step S8), a screen display showing the bobbin thread winding amount is displayed on the display unit 11 in step S9. Here, for example, as shown in FIG. 4(c), the words "Bobbin thread is being wound" are displayed on the screen of the display unit 11 together with a picture showing the bobbin thread being wound around the bobbin.

Although not shown in detail, as the bobbin thread winding amount detected by the bobbin thread winding amount detector 29 changes, the picture showing how the bobbin thread is wound around the bobbin gradually becomes thicker. Things are being replaced.

The user can check the progress of the bobbin winding operation by looking at the screen display.

Then, when the bobbin thread winding amount becomes an appropriate amount (Yes in step S8), the bobbin thread winding operation is stopped and the next step S10 is
At , the screen display on the display unit 11 is switched to a display indicating that the bobbin winding has been completed and how to remove the bobbin. Here, for example, as shown in Fig. 4(d), the display section 11 displays the words "Bobbin winding has finished. Move the lever to the right to remove the bobbin 0" or a picture pointing to the bobbin winding lever. It will be displayed on the screen. By seeing this, the user knows that the bobbin winding work has been completed and can easily understand the next operation to be performed, and the bobbin winding work is completed by operating the bobbin winding lever. That's what I do.

Next, as an example of a warning display, a case where the buttonhole lever 15 is erroneously operated will be described with reference to FIG. 5 as well.

This buttonhole lever 15 must be lowered when buttonholing is performed, and must be raised when other sewing operations are performed. now,
For example, when the start/stitch/socket/socket button 26 is pressed while a sewing method other than buttonholing, such as straight stitching, is selected by the selection switch 9, the BH
When the stitch switch 18 detects that the buttonhole lever 15 is lowered, the sewing work is not started, and a message indicating that the buttonhole lever 15 is lowered is displayed on the screen of the display unit 11. It will be done. Here, as shown in FIG. 5(a), for example, the words "Buttonhole stitching lever is down" are displayed on the screen of the display unit 11 together with a picture showing that the buttonhole stitching lever 15 is down. will be displayed.

When the user sees the screen display and lifts the buttonhole lever 15, the BH lever switch 18 detects that the buttonhole lever 15 has been raised, and then the start/stop switch 26 detects that the buttonhole lever 15 has been raised.
When is pressed, the sewing operation is started and a predetermined sewing operation is performed.

On the other hand, if the BH lever switch 18 does not detect that the buttonhole lever 15 has been raised even after a predetermined period of time has passed after the display shown in FIG. 5(a) is displayed on the display section 11, In this case, the screen display on the display unit 11 is changed as shown in FIG. 5(b), for example. here,"
The words "Please raise the lever, check the type of presser foot, and press the start switch" are displayed on the screen of the display unit 11 along with a picture pointing to the buttonhole lever 15, and the user sees this and performs the next step. The required operations can be easily understood.

In this way, a plurality of screen display buttons are stored, and the warning display is switched depending on the passage of time, for example.

According to this embodiment, the performance status of each function is detected one by one by various switches and sensors 17 to 29, and the performance status of each function is displayed on the display unit 11 based on the screen display data stored in the ROM 7. A plurality of screen displays are displayed while being switched as appropriate. Therefore, like the conventional one, "Bobbin is not set"
Unlike systems that only display a single message for a predetermined function, such as when a user has to perform a complex operation that involves multiple steps, the next operation to be performed is displayed step by step. Therefore, the user can easily understand the next operation to be performed. In particular, in this embodiment, since both text and pictures are displayed, the user's understanding can be made easier.

In the above embodiment, the screen display when executing the bobbin winding function and the screen display when the buttonholing lever 15 is erroneously operated are described as specific examples, but the screen display can be applied when executing various functions, etc. Various changes can be made to the present invention without departing from the scope thereof.

[Effects of the Invention] As is clear from the above description, the sewing machine of the present invention has the excellent effect of informing the user of the next operation to be performed in an easy-to-understand manner.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a flowchart showing the procedure for switching the display on the display unit when executing the bobbin winding function, FIG. 2 is a block diagram showing the electrical configuration of the main parts, and FIG. Figure 3 is a front view of the sewing machine, Figures 4 (a) to (d) are views showing the display screen of the display unit when the bobbin winding function is executed, and Figures 5 (a) and (b) are the buttonhole threading levers. FIG. 4 is a diagram illustrating a display screen of a display unit when an erroneous operation is performed. In the drawing, 1 is the main body of the sewing machine, 6 is a CPU, 7 is a ROM (storage means), 8 is a control device (display control means), 9 is a selection switch, 11 is a display section, and 17 to 29 are various switches and sensors (detection means). ) is shown.

Claims (1)

[Claims] 1. A display unit that displays a screen to give instructions, warnings, or status notifications to the user, and a memory that stores screen display data for multiple instructions, warnings, or status notifications according to the execution status of a given function. a detecting means for detecting the execution status of the function one by one, and a display control means for switching the screen display and displaying it on the display unit according to a change in the execution status detected by the detecting means. .