JPH08318069A - Sewing condition setting device for sewing machine - Google Patents

Abstract

PURPOSE: To surely eliminate errors in which conditions not desired by a user are set, in a sewing machine capable of setting sewing conditions original to the user. CONSTITUTION: To adjustment parts 1 and 2 for setting the sewing conditions, respective sensors 3 and 4 for detecting the manipulated variable or manipulating position of the adjustment parts 1 and 2 are assembled. The output of the respective sensors 3 and 4 is read in by a microcomputer 5 and written in a rewritable memory 6 as prepared sewing conditions specified by the user. Since the output of the sensors 3 and 4 is used for a set value as it is, setting errors are surely eliminated. Also, since a program ROM9 is provided and the prepared sewing conditions are set from basic sewing conditions specified by a meter read out from the ROM9, a setting operation is extremely facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine which enables a user to easily set sewing conditions such as cloth feed setting values and tension setting values according to the thickness and material of cloth to their own set values. The sewing condition setting device.

[0002]

2. Description of the Related Art A sewing machine in which a sewing condition according to the thickness and material of a cloth is programmed in advance and a sewing condition preferable for a user is set only by a selection operation is described in the publication of US Pat. No. 4,370,938. The sewing machine disclosed in this publication is determined by experimentally examining the set values for each item of sewing conditions by the manufacturer.

However, in the sewing machine of the above publication, if the cloth selected by the user during actual use is not the same as the cloth used during the manufacturer's survey, the user must take some means to correct them. In reality, there are many kinds of threads and cloths, and new materials are being announced one after another, so it is not possible to cover them only with the sewing conditions prepared in advance by the manufacturer.

As a solution to such a problem, there is known a sewing machine such as a hobbylock 4870 sewing machine manufactured by Mima Seiki, which is capable of registering sewing conditions in its own content.

[0005]

However, in the sewing machine which can register the sewing conditions unique to the user,
Even if there is a case where the user does not want to actually sew due to an error in the setting operation, the user has to set the adjustment section for various items relating to the sewing condition and input it to the CPU, and this is detected in advance. There is no means,
There is a problem.

Therefore, in order to eliminate the troublesomeness of the setting operation, in the sewing machine of ELNA PRO950 DCX manufactured by Hosei, in addition to the sewing condition registration function, an actuator is added to each adjusting section so that the setting is performed automatically. However, when registering the user's own sewing conditions, the troublesomeness of setting and adjusting the adjustment units for various items and inputting them to the CPU cannot be eliminated, and the cost is rising due to the actuator. .

The present invention has been made in view of the above-mentioned problems of the prior art. In a sewing machine capable of registering a sewing condition unique to a user, the optimum value of a set value according to a user's preference is guaranteed. For the purpose of provision.

[0008]

According to the invention of claim 1 which has solved the above-mentioned problems, each adjusting section for adjusting the set values of various items relating to the sewing condition and each detecting the set value of each adjusting section are provided. Rewriting memory in which a plurality of sensors and sets of outputs of the respective sensors can be written as a program of a new sewing condition, a sewing condition selector for instructing to read out one of the programs stored in the rewriting memory, and the above rewriting The writing control of the memory is provided, and a control means for executing sewing with each set value of the created sewing condition read from the rewriting memory by the sewing condition selector is provided.

According to a second aspect of the present invention, the control means stores a preset basic sewing condition program, and the program can be read out by the sewing condition selector to issue an R command.
The OM is connected to the control means, and the control means reads out a set of outputs newly detected from the sensor means by the sewing condition selector and issues a program from the ROM or a program previously written in the rewriting memory. It is determined whether or not they match, and when they do not match, a new output set of each sensor is written in the rewriting memory as a program of a new created sewing condition according to a registration instruction from the user.

[0010]

According to the first aspect of the invention, when the user tries to sew under his or her own sewing conditions, the setting operation of each adjusting section causes
The output of each sensor corresponding to each adjusting section changes, and the control means reads this set of outputs. When trial sewing is performed in this state and desired sewing is performed, the control means writes the output set in one area of the rewriting memory as a program of a new created sewing condition. Then, from the next sewing on, the program is read out by the sewing condition selector, and the control means issues the sewing command under the same sewing conditions.

According to the second aspect of the invention, first, for example, the basic sewing condition specified by the manufacturer is set, and each adjusting section can be set and operated in order to derive the original created sewing condition from this condition.
Further, the control means of the invention of claim 2 judges whether or not the new created sewing condition matches the maker specified basic sewing condition or the previous created sewing condition, and if the result does not match, registration designation by the user Write the created sewing condition in the rewriting memory with.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A sewing condition setting device for a sewing machine according to an embodiment of the present invention will be specifically described below with reference to the drawings. In FIG. 1, reference numerals 1 and 2 denote cloth feed setting values, finger setting values, needle set position setting values, overlock width setting values, which will be described later, when sewing is to be performed under the user's unique sewing conditions.
It is an adjusting unit that performs setting operation such as tension setting value according to the thickness and material of the cloth.
The sensors 3 and 4 for detecting the operation amount or the current operation position added to 2 as electric signals are assembled, and the outputs of the sensors 3 and 4 are read by the CPU 5 which constitutes a part of the on-board microcomputer. It is supposed to be done.

FIG. 2 shows a specific structure in which the adjusting unit 1 (or 2) is mounted on the housing 21 in the form of a dial. The adjustment unit 1 (or 2) includes an operation dial 22 rotatably attached to a housing 23, a shaft portion 24 extending from the operation dial 22 into the housing 23, the shaft portion 24, and a cloth presser, for example. An engaging mechanism portion (not shown) configured to engage with the movable portion to change the cloth feed amount, and the operation dial 22 and the shaft portion 24.
And a mounting bearing 25.

The above-mentioned engaging mechanism section is for changing the front-back direction position of the cloth presser when the adjusting section 1 (or 2) is for setting the finger, and for setting the needle set position, it is for the left and right or the needle. It is an engagement mechanism that can change the vertical position. Figure 2
(A) is an example in which the adjusting unit 1 (or 2) and the sensor 3 (or 4) are integrated, and the sensor 3 (or 4) is constituted by a potentiometer and is fixed to the mounting bearing 25 and An insulating substrate 26 slidable relative to the operation dial 22, an outer resistance portion 27 formed on the insulating substrate 26 in a circular shape in a predetermined range, and concentric with the outer resistance portion 27 in substantially the same range. And an inner resistance portion 28 and a pressure-contact sliding piece 29 fixed to the dial side and in pressure contact with the outer resistance portion 27 and the inner resistance portion 28.

According to such a sensor 3 (or 4),
When the operation dial 22 is rotated, a resistance value (or a voltage signal) proportional to the operation position is obtained from the outer resistance portion 27 and the lead terminals 33 and 31 of the outer resistance portion 27.
The CPU 5 reads the resistance value (or voltage signal) as the output of the sensor 3 (or 4). Figure 2
In (B), the adjusting unit 1 (or 2) and the sensor 3 (or 4) are examples of separate bodies, and the driving gear 32 is attached to the shaft portion 24. The sensor 3 (or 4) has a driven gear 33 that meshes with the driving gear 32 attached to a rotary shaft 35 of a potentiometer 34 fixed to the housing 23. This also allows the dial 36 to be dialed from the terminal portion 36 of the potentiometer 34. A resistance value (or voltage signal) proportional to the operating position can be obtained.

By the way, the CPU 5 writes and writes the read set of outputs from the respective sensors 3 and 4 as a program of a user-specified sewing condition into a rewritable rewritable memory 6 such as a RAM or an E ² PROM. The program can be read. The rewriting memory 6 has an area for writing a plurality of programs described above. Also, CPU5
A work RAM 8, a ROM 9 and a display control circuit 10 are connected via the bus 7. The ROM 9 is a mask memory in which basic sewing conditions specified by the manufacturer are written, and the display control circuit 10 controls the display of the display 11. Further, the CPU 5 is connected with a sewing condition selector 12 for user operation for reading out the basic sewing condition program written in the ROM 9 and the created sewing condition program written in the rewriting memory 6. The sewing condition selector 12
It can be configured with operation buttons, switches, etc., not shown.

The operation of the sewing condition setting device of the sewing machine having the above structure will be described with reference to FIGS. 3 and 4. After the power is turned on, the CPU 5 waits for the user to operate the sewing condition selector 12 and determines the sewing condition (steps 41, 4).
2). This is to read one of the programs in the ROM 9 or the rewriting memory 6.

The read program is displayed on the display control circuit 1.
It is displayed on the display 11 as shown in FIG. 4 via 0 (step 43). The display column shows the mode name indicating the types of automatic sewing, manual sewing and memory sewing, memory number, material name indicating the thickness of cloth, program name indicating the sewing type, feed set value indicating the feed amount of cloth feed, cloth Differential set value indicating the feed differential ratio, finger set value, needle set position,
It has overedging width and tension dial setting values.

When the user creates his own sewing condition,
The program selected in step 42 is modified with reference to the above display. The CPU 5 monitors the outputs of the sensors 3 and 4 which change depending on the operation amounts applied to the adjusting units 1 and 2 in steps 40 and 44, and when the state of no change continues for a certain period of time, determines that the operation is completed and determines the sensor in step 45. Three
The output of 4 is read into the working RAM 8.

Next, in step 46, when the CPU 5 judges that the read set of the outputs of the sensors 3 and 4 matches the content of the display 11, the setting of the sewing condition is stopped in order to avoid the duplicate setting. To do. That is, the same sewing condition is duplicated when the operation amount of the adjusting units 1 and 2 at the time of creating a new condition returns to within the one-step change width of the adjusting units 1 and 2 or to the set value displayed on the display unit 11. I try not to write it.

If the set of outputs from the sensors 3 and 4 does not match the sewing condition displayed on the display 11 in step 46, the process proceeds to step 47. In step 47, a message indicating that the sewing condition displayed on the display 11 and the set of outputs from the sensors 3 and 4 do not match is displayed on the display 11. Then, in the following step 48, it is determined whether or not the set of the outputs of the sensors 3 and 4 read in step 45 is registered as a new created sewing condition. This is performed based on the registration operation by the user. When registration is performed, steps 49 and 50 are executed to write the outputs of the sensors 3 and 4 in the empty area of the rewriting memory 6 as a new created sewing condition. The created created sewing condition is used when the sewing program is executed, and the sewing can be performed under the created created sewing condition.
If there is no empty area, it is easy to display a message indicating that the memory capacity is exceeded on the display unit 11.

If it means that the instruction operation by the user is not saved during the determination in step 48, it is determined that the sewing condition is one-time sewing and the sewing condition is not registered.
In this case, the sewing operation is performed with the set of outputs of the sensors 3 and 4 read in step 45 when the sewing program is executed as the one-time sewing condition. As described above, according to the sewing condition setting device of the above-described embodiment, when the user tries to sew under the sewing condition unique to the user, the adjusting units 1 and 2 are set and the outputs of the sensors 3 and 4 changed by the setting operation are read. This completes the setting of new created sewing conditions. Therefore, there is no risk of erroneous setting operations of the adjusting units 1 and 2 and unfavorable sewing being performed, and it is possible to set optimally created sewing conditions according to the user's preference without fail.

When the number of registered new sewing conditions is zero,
The setting operation can be performed by modifying the created sewing condition from the basic sewing condition specified by the maker, rather than performing the setting operation from the initial state at all, so that the setting operation of the new sewing condition becomes extremely easy. Further, since it is determined whether the new created sewing condition matches the basic sewing condition or the previous created sewing condition, the same sewing condition is not written in duplicate.

[0024]

As described above, according to the invention of claim 1, each sensor for detecting the set value of each adjusting portion is provided,
Since the set of outputs of each sensor can be saved as the user-specified sewing condition, the user's unique sewing condition can be obtained at the same time when each adjusting section is set and set to a set value according to the user's preference. It can definitely be adjusted.

According to the second aspect of the invention, when the number of registered new sewing conditions is zero, the created sewing condition is derived from the basic sewing condition specified by the manufacturer, so that the setting operation of the new created sewing condition becomes easy. . In addition, when the set value of the basic sewing condition or the new created sewing condition derived from the previous created sewing condition returns to within the one step change width of each adjustment section or the set value of the basic sewing condition or the previous created sewing condition. Do not write the same sewing condition in duplicate.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a sewing condition setting device for a sewing machine according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing two specific configurations when the adjusting portion is attached to the housing of the sewing machine.

FIG. 3 is a flowchart showing the operation of the above embodiment.

FIG. 4 is an explanatory diagram showing various items of sewing conditions.

[Explanation of symbols]

Reference numerals 1 and 2 are an adjusting unit, 3 and 4 are sensors, 5 is a CPU, 6 is a rewriting memory, 9 is a ROM, and 12 is a sewing condition selector. Elements having the same members or the same functions are common to each drawing. Add a sign.

Claims (2)

[Claims] 1. A new creating sewing condition for each adjusting unit for adjusting the setting values of various items relating to the sewing condition, each sensor for detecting the setting value of each adjusting unit, and a set of the output of each sensor. , A rewritable memory in which a plurality of rewritable memories can be written, a sewing condition selector for reading out and instructing one of the programs stored in the rewritable memory, a rewriting memory for the rewriting memory, and the rewritable memory selected by the sewing condition selector. 2. A sewing condition setting device for a sewing machine, comprising: a control unit that executes sewing at each set value of the created sewing condition read from the sewing machine. 2. The control means is connected to a ROM which stores a program of a preset basic sewing condition and which can read out the program by the sewing condition selector, and the control means is newly provided. The set of outputs detected from each of the sensor means is read out by the sewing condition selector, and the R command is issued.
It is determined whether or not the program matches the program from the OM or the program previously written in the rewriting memory, and when the two do not match, a new output set of each sensor is created by a user's registration instruction and a new sewing condition is created. 2. The sewing condition setting device for a sewing machine according to claim 1, wherein the program is written in the rewriting memory as the program.