JP2002355461A - Attachment/detachment detector for attachment and attachment/detachment detector for embroidery attachment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of a driving circuit on a sewing machine body side due to energy generated from a motor (inductor component) on an attachment side by the detach ment of an attachment for embroidery from a sewing machine body or the like during embroi dery sewing work in a sewing machine for embroidery. SOLUTION: For an embroidery sewing machine, an attachment 10 for embroidery provided with X-Y driving parts 2 and 3 for driving an embroidery frame is mounted on a sewing machine body 5 by connecting input/output connectors 81 and 82, and driving power is supplied from the control part 7 of the sewing machine body 5 to the X-Y driving parts 2 and 3 through the input/output connectors 81 and 82. The embroidery sewing machine is provided with an embroidering machine presence/absence detection part 4 for detecting that the attachment 10 for embroidery is connected to the sewing machine main body 5, an operation means for pulling out the connector 81 for input from the connector 82 for output, an embroidery cancellation switch 21 for detecting, before the connector 82 for the input is pulled out from the connector 82 for the output, that the operation means is operated, and a control part 7 for minimizing or eliminating power supply to the X-Y driving parts 2 and 3 so as to stop the drive of the X-Y driving parts 2 and 3 on the basis of the detection of the embroidery cancellation switch 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting attachment / detachment of an attachment such as an embroidery machine having a drive unit which is driven by being electrically connected to a sewing machine main body.

[0002]

2. Description of the Related Art Conventionally, a fabric is held by an embroidery frame, and the embroidery frame is moved in a horizontal direction (X-Y direction) by a motor to move a needle drop position to sew a predetermined embroidery pattern on the fabric. Embroidery sewing machines are known. This embroidery sewing machine is, for example, as shown in FIG. 15, a predetermined embroidery attachment 1 prepared in advance.
00 is attached to the sewing machine main body 200.

The embroidery attachment 100 of the embroidery sewing machine 300 is provided with an XY motor (not shown) for moving the embroidery frame in a horizontal direction. The XY motor attaches the attachment 100 to the sewing machine main body 200. By connecting, it is controlled by a drive signal of a motor control means provided in the sewing machine main body 200. The sewing machine body 2
00 has a power supply unit and supplies power to the attached attachment. Further, the sewing machine main body 20 of the embroidery sewing machine 300 is used.
0 is provided with a needle, which is
01 (see FIG. 16), the main shaft is rotated, so that it can reciprocate up and down.

When the embroidery sewing operation is performed using the embroidery sewing machine as described above, the embroidery attachment 10 is controlled by a motor control means provided on the sewing machine main body 200.
At the same time as driving the XY motor provided on the sewing machine main body 200, the main motor provided on the sewing machine main body 200 is driven by the motor control means to reciprocate the needle 201 in the vertical direction to sew a predetermined embroidery pattern. I have. That is, the motor control means provided in the sewing machine main body 200 controls the drive by synchronizing both the XY motor provided in the embroidery attachment 100 and the main motor provided in the sewing machine main body 200.

As shown in FIG. 16, the sewing machine main body 200 includes a microcomputer 220 to which switches, sensors, encoders, volumes, and the like are connected for driving and controlling the entire sewing machine, ROM, RAM, flash memory, and the like. The microcomputer 220 is connected via the input / output connectors 110 and 210 by controlling the embroidery Y-direction drive circuit 221, the Y-direction current control circuit 222, the embroidery X-direction drive circuit 223, the X-direction control circuit 224, and the like. The embroidery XY direction drive motors 120 and 121 of the embroidery attachment 100 are controlled.

Here, a connector 110. For transmitting drive power from the sewing machine main body 200 to drive motors 120 and 121 provided on the embroidery attachment 100.
The structure of 210 will be described. That is, as shown in FIG. 17, the input connector 1 for inputting the drive current for driving the XY motor to the embroidery attachment 100.
10 is provided, and an output connector 210 for outputting a drive current of the motor control means is provided on the sewing machine main body 200. By inserting the input connector 110 into the output connector 210, the drive current of the motor control means is controlled by the sewing machine main body 20.
The transmission is performed from the 0 side to the embroidery attachment 100 side.

The embroidery attachment 100 is connected to the sewing machine main body 20 via input / output connectors 110 and 210.
An embroidery machine presence / absence detector 140 is connected to the microcomputer provided in the embroidery machine 0 to detect a connection state of the embroidery attachment 100 to the sewing machine main body 200. That is, when the embroidery attachment 100 is connected to the sewing machine main body 200, the drive circuits 221 and 223 are enabled by the microcomputer 220 and the connector is connected to the XY motors 120 in the embroidery attachment 100. Power is supplied via 110 and 210. Thereby, the Y-direction current control circuit 2
The movement of the embroidery frame is controlled by controlling the current value by the current control circuit 22 and the X-direction current control circuit 223. Further, when the input connector 110 and the output connector 210 are disconnected, the signal from the embroidery machine presence / absence detection unit 140 is not input to the microcomputer 220, that is, the microcomputer 220 is disconnected from the connectors 110 and 210. Is detected, the respective drive circuits and the current control circuit are controlled, and power supply to the respective drive motors 120 and 121 of the embroidery attachment 100 is stopped.

[0008]

By the way, in the configuration of the embroidery sewing machine 300, when the embroidery attachment 100 comes off from the sewing machine main body 200, the microcomputer 220 connects the embroidery machine via the connectors 110 and 210. Based on the signal from the machine presence / absence detector 140, it is detected that the embroidery attachment 100 is completely removed from the sewing machine main body 200, and the drive circuits 221 and 223 and the current control circuits 222 and 224 are controlled to control the embroidery attachment. The power supply to each of the 100 drive motors 120 and 121 is stopped. For this reason, the embroidery attachment 10
The microcomputer 220 cannot detect that the embroidery attachment 100 is removed until the microcomputer 220 is securely removed from the sewing machine main body 200.
0 controls each of the drive circuits 221 and 223 so that the connector 1
Each of the drive motors 120 and 121 of the embroidery attachment 100 is kept for a certain period of time even after the two
Try to supply power to Thereby, each drive circuit 22
Since the current paths on the sides 1 and 223 are open, there is a problem that the drive circuits 221 and 223 malfunction or are destroyed by the energy stored in the inductor components. In the case of destruction, it is necessary to change to a new drive circuit, which is troublesome.

SUMMARY OF THE INVENTION An object of the present invention is to provide an embroidery sewing machine in which an embroidery attachment is mounted on a sewing machine main body, such that the embroidery attachment comes off the sewing machine main body during embroidery sewing work or the like so that the motor (inductor component) on the attachment side. Prevents the circuit (drive circuit) on the sewing machine body from being damaged by the energy generated from the machine.

[0010]

In order to solve the above problems, the invention according to claim 1 is mounted on an electronic device main body (for example, a sewing machine main body 5) as shown in FIGS. In the attachment / detachment detecting device provided with a drive unit (for example, an embroidery X-direction drive motor 2 and an embroidery Y-direction drive motor 3) driven by supplying electric power from the mounted electronic device main body, Connecting means (for example, an input connector 81 and an output connector 82) for connecting the electronic device main body to the drive of the attachment so that power can be supplied from the electronic device main body side to the electronic device main body. A connection detecting means (for example, an embroidery machine presence / absence detector 4) for detecting the connection, an operating means 50 for releasing the connection of the connecting means, Disconnection detection means for detecting that the means has been operated before disconnection, and, based on the detection of the disconnection detection means, before the connection state of the connection means is released, the power to the drive unit of the attachment is released. A control unit (for example, the control unit 7) for minimizing or zeroing the supply amount.

According to the first aspect of the present invention, the connection release detecting means detects that the connection state of the connection means, that is, the connection state between the attachment and the electronic device main body is about to be released by operating the operation means. It is possible to detect before disconnection and to stop the drive of the attachment drive unit by minimizing or zeroing the power supply to the drive unit by the control unit based on the detection of the disconnection detection unit. . Therefore, before the attachment is completely detached from the electronic device main body, the amount of power supply to the drive unit is minimized or zero, so that the drive power generated from the control unit of the electronic device main body is minimized or reduced to zero. Then, the attachment is detached from the electronic device main body. Therefore, the control means on the electronic device main body side is not damaged by the attachment coming off the electronic device main body.

According to a second aspect of the present invention, for example, as shown in FIGS. 1 to 5, an embroidery frame is moved in an XY direction.
Y drive unit (for example, embroidery X direction drive motor 2 and embroidery Y
Embroidery attachment 10 having a directional drive motor 3), an input connector 81 for inputting drive power for driving the XY drive section, a main motor 51 for moving needles up and down, and the X- A drive control unit (for example, a control unit 7) for supplying drive power for driving a Y drive unit to control the drive of the main motor and the XY drive unit;
Output connector 8 for outputting drive power of Y drive unit
And an input connector and an output connector are connected to transmit the driving power of the XY motor when the embroidery attachment is mounted on the sewing machine main body. A connection detection unit (for example, an embroidery machine presence / absence detection unit 4) that is provided on the embroidery sewing machine and detects that the embroidery attachment is connected to the sewing machine body by connecting the input / output connector; Operating means for unplugging from the output connector; detecting means for detecting that the operating means has been operated before the input connector is disconnected from the output connector (for example, embroidery release switch 21); Control means for minimizing or zeroing the power supply to the XY drive to stop driving the XY drive based on the detection of the detection means (eg If, micro-computer 71,
Embroidery Y-direction drive circuit 77, X-direction drive circuit 80, etc.).

According to the second aspect of the present invention, the detecting means determines that the operation of the operating means for disconnecting the input connector from the output connector has been performed before the input connector is disconnected from the output connector. In other words, before the connection state between the embroidery attachment and the sewing machine main body is released, the detection is performed, and based on the detection of the detection unit, the control unit controls the supply amount of power to the XY drive unit to a minimum or The drive of the XY drive unit of the embroidery attachment can be stopped by setting the value to zero. Therefore, before the input connector is completely disconnected from the output connector, that is, before the embroidery attachment is completely removed from the sewing machine main body, the amount of power supply to the XY drive unit is minimized or reduced to zero. Therefore, the embroidery attachment is detached from the sewing machine main body after the driving power generated from the control means of the sewing machine main body is minimized or set to zero. Therefore,
When the embroidery attachment comes off the sewing machine main body, the control means on the sewing machine main body side is not damaged. That is,
Transmission of drive power supplied to the embroidery attachment side before energy generated from the drive unit (inductor component) on the embroidery attachment side due to the attachment of the embroidery coming off the sewing machine body during the embroidery sewing operation is generated. Can be cut off, and the control means (drive circuit and the like) can be prevented from being damaged by the energy.

According to a third aspect of the present invention, there is provided the embroidery attachment attachment / detachment detecting device according to the second aspect,
As shown in FIGS. 1 to 5, the XY driving unit (for example,
Embroidery X direction drive motor 2 and Embroidery Y direction drive motor 3)
Comprises stepping motors 2 and 3 which can move the embroidery frame in the X and Y directions by driving, respectively, and the control means controls the supply of power to the stepping motor based on the detection of the detection means. It is characterized in that the stepping motor is controlled so as to be smaller or zero than when the driving of the stepping motor is stopped.

According to the third aspect of the present invention, the stepping motor further supplies power to the stepping motor based on the detection of the detecting means by the control means as compared with when the driving of the stepping motor is stopped. The driving is stopped by being controlled to be a minimum or zero. Therefore, the control means on the sewing machine main body side is not damaged by the embroidery attachment coming off the sewing machine main body.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the attachment / detachment detection device for the embroidery attachment described in the above,
The control unit may stop driving the XY drive unit based on the detection of the detection unit after the connection detection unit detects a connection state between the input connector and the output connector. Features.

According to the fourth aspect of the present invention, after the connection detecting means detects a connection state between the input connector and the output connector, the control means detects the connection state based on the detection by the detection means. Since the drive of the XY drive unit is stopped, after the state in which the sewing machine main body and the embroidery attachment are connected is detected, the disconnection detecting means sets the connection state of the connection means, that is, the embroidery attachment and Detecting that the connection state with the sewing machine body is about to be released is released before being released, and controlling the supply amount of power to the XY drive unit by the control means based on the detection of the disconnection detection means. The drive of the XY drive unit of the embroidery attachment can be stopped to a minimum or zero.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. The embroidery attachment attachment / detachment detection device according to each embodiment includes a sewing machine main body,
The embroidery sewing machine is provided with an embroidery attachment that can be attached to and detached from the sewing machine main body. When the embroidery attachment is mounted on the sewing machine main body, the embroidery sewing machine connects an input connector provided on the embroidery attachment and an output connector provided on the sewing machine main body, and controls the motor control means of the sewing machine main body. Is transmitted to the embroidery attachment for embroidery sewing work.

[First Embodiment] An embroidery sewing machine 1 having an attachment / detachment detecting device for an embroidery attachment (hereinafter also referred to as an embroidery machine) according to a first embodiment is, as shown in FIGS. Embroidery X-direction drive motor and embroidery Y-direction drive motor (XY drive unit) for moving the embroidery frame in the XY directions
2, an embroidery attachment 10 having an input connector 81 for inputting a drive current for driving the drive motors 2 and 3, a main motor (main motor) 51 for moving needles up and down, and a drive A control section (control means) 7 for generating a drive current for driving the motors 2 and 3 to generate the motors 51 2 and 3; and a drive section for outputting drive power for the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3. A sewing machine main body 5 having an output connector 82; When the embroidery attachment 10 is mounted on the sewing machine body 5, the drive power of the XY motors 2.3 is transmitted by connecting the input connector 81 and the output connector 82.

The attachment / detachment device for the embroidery attachment included in the embroidery sewing machine 1 is provided in the embroidery attachment 1.
The embroidery machine presence / absence detector 4 serving as a connection detecting means for detecting that 0 is connected to the sewing machine main body 5 by the connection of the input / output connectors 81 and 82, and the input connector 81 is about to be disconnected from the output connector 82. The embroidery release switch 21 as detection means for detecting before the input connector 81 comes off from the output connector 82, and the embroidery X direction drive motor 2 and the embroidery Y direction drive motor 3 based on the detection of the embroidery release switch 21. (Control unit: also serves as a control unit for the entire sewing machine) 7 and the like for minimizing or zeroing the supply of the driving power.

In detail, the sewing machine body 5 includes a control section 7 for controlling the driving of the entire sewing machine, a main motor (main motor) 51 for driving the sewing machine, a sewing machine driving operation / stop switch 52, and a touch panel 53 for pattern selection and editing. , A needle swing origin detecting sensor 54, a feed sensor 55, an upper thread hooking origin detecting sensor 56, an automatic lower bobbin winding origin detecting sensor 57, an automatic lower bobbin winding driving switch 58, a lateral feed origin detecting sensor 59, a photo-interrupter 60 for spindle phase detection, The system is provided with an encoder 61 for detecting the number of revolutions of the sewing machine, a speed control potentiometer 62, a cloth thickness detection sensor 63, a display 64, and the like. Each unit is connected to a microcomputer 71 of the control unit 7 via a system bus so that data can be input and output. Has become. Regarding the configuration of each unit included in the sewing machine main body 5, the description of the same configuration and operation as those of the conventional embroidery sewing machine is omitted, and only the configuration related to the attachment / detachment detection device of the present embodiment will be described.

The control unit 7 has a CPU (Central P
microcomputer 71 having a processing unit (ROM), ROM (Read Only Memory)
ry) 72, RAM (Random Access M)
emory) 73, flash memory 74, display 64
Display control circuit 75 for controlling the display of the main motor 51
Embroidery Y of the embroidery attachment 10 via a main motor drive circuit 76 for controlling the drive of the
Embroidery Y-direction drive circuit 77, Y-direction current control circuit 78, X-direction current control circuit 7 for controlling driving of direction drive motor 3
9. Embroidery X for controlling the drive of the embroidery X-direction drive motor 2 of the embroidery attachment 10 via the output connector 82
It includes a direction drive circuit 80 and the like, and is connected to the microcomputer 71 by a system bus. In the control unit 7, the microcomputer 71 includes a ROM 72, a RAM 7
3. Control the operation of the sewing machine based on the data and instructions stored in the flash memory 74. For details,
The microcomputer 71 includes a control program and control data stored in the ROM 72, and the respective units 52 to 64.
The controller 7 controls the entire control unit 7 and performs various data processing in accordance with a signal input by the control unit 7. The RAM 73 is storage means used as a work area of the microcomputer 71, and stores the contents stored in the ROM 82 or the results of the arithmetic processing of the microcomputer 71.

The sewing machine drive / stop switch 52 is arranged on an operation panel provided on the side of the sewing machine main body 5. When the switch is turned on, a signal is output to the microcomputer 71, and the microcomputer 71 outputs the signal based on the signal. Then, the main motor 51 is driven via the main motor drive circuit 76. On the pattern selection / editing touch panel 53, embroidery patterns can be selected or embroidery patterns recorded in an external storage device to be connected can be determined. In this way, the embroidery pattern can be determined by selecting or editing it. The embroidery pattern selected or edited in this manner is sent to the embroidery X-direction drive circuit 80, the embroidery Y-direction drive circuit 77, and, if necessary, the X-direction current control circuit 7.
9. Via the Y-direction current control circuit 78, the connector 81
By driving the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 of the embroidery attachment 10 connected through 82, an embroidery frame (not shown) is moved in the XY directions, and embroidery is performed on the cloth fixed to the embroidery frame. The pattern can be sewn.

The display 64 is a microcomputer 71
When the drive of the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 is stopped before the connection between the input / output connectors 81 and 82 controlled by the Is displayed via the.

The main motor drive circuit 76 is connected to the main motor 51 and controls the drive of the main motor 51 based on the result of the arithmetic processing of the microcomputer 71. By the driving of the main motor 51, the sewing needle is moved up and down or a looper (not shown) is rotated, and sewing is performed on the workpiece.

The embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 operate when the input connector 81 of the embroidery attachment 10 is connected to the output connector 82. 3
And the embroidery X-direction drive motor 2. The microcomputer 71 outputs a predetermined current value to the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 based on a drive signal transmitted from the microcomputer 71 as a result of the arithmetic processing, that is, supplies power. To control the drive of the embroidery Y direction drive motor 3 and the embroidery X direction drive motor 2. Thus, the microcomputer 71 can simultaneously drive and control the main motor 51 provided on the sewing machine main body 5 for reciprocating the needle in the vertical direction, and the embroidery Y-direction drive motor 3 provided on the embroidery attachment 10 and A predetermined embroidery pattern can be sewn by controlling the drive of the embroidery X direction drive motor 2 and the main motor 51 provided on the sewing machine main body 5 in synchronization.

The Y-direction current control circuit 78 and the X-direction current control circuit 79 are controlled by the microcomputer 71, and the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 8
The drive current value for driving the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 can be controlled. That is, when the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 are pulse motors, the embroidery release switch 21 described later detects that the embroidery attachment 10 is likely to come off. When the release switch 21 is turned on and a signal from the embroidery release switch 21 is input via the input / output connectors 81 and 82, the microcomputer 71 controls the Y-direction current control circuit 78 and the X-direction current control circuit 79. Regardless of the command value instructed to the embroidery Y direction drive circuit 77 and the embroidery X direction drive circuit 80, the embroidery Y direction drive motor 3 and the embroidery Y direction drive motor The embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 stop driving the current value output to the embroidery X-direction drive motor 2. Controlled to be smaller value (a value close to zero) than Rutoki.

Thus, the power supply of the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 can be cut by an electric circuit, so that even if the processing of the microcomputer 71 is delayed, it is possible to cope with the problem without any problem. ing. Note that these Y-direction current control circuit 78 and X-direction current control circuit 79 are auxiliary control circuits, and if the processing delay of the microcomputer 71 does not matter,
It may be omitted. In this case, a signal output from the embroidery release switch 21 to the sewing machine main body 5 via the input / output connectors 81 and 82 is input to the microcomputer 71. Thereby, the microcomputer 71 controls the embroidery Y direction drive circuit 77 and the embroidery X direction drive circuit 80,
The connection state of the input / output connectors 81 and 82 is completely released,
That is, the drive of the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 is stopped before the input connector 81 is completely removed from the output connector 82. As shown in FIG. 2, the sewing machine main body 5 has an outlet 86 for obtaining electric power from the outside, a power switch 87, and a stabilizing power source for stabilizing the electric power obtained from the outside and supplying it to each part of the sewing machine main body 5. Power supply circuit 88 and the like.

On the other hand, the embroidery attachment 10 is connected to the input / output connector 81.
The embroidery Y-direction drive motor 3 and the embroidery X-direction drive, which are driven by being supplied with electric power from the side of the sewing machine 5 via the input / output connectors 81 and 82 when the sewing machine 5 is connected to the sewing machine 5 and attached thereto. An embroidery machine (attachment for embroidery) presence / absence detector (connection detection means) 4, an embroidery release switch (detection means) 21 and the like are provided together with the motor 2.

The embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 are driven by the electric power supplied by the control unit 7 of the sewing machine main body 5 via the input / output connectors 81 and 82 to hold the cloth. Insert the embroidery frame (not shown) in the horizontal direction (X
−Y direction). The embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 of this embodiment are each composed of a pulse motor.

The embroidery machine presence / absence detector 4 includes an embroidery attachment 10 connected to the sewing machine body 5 by input / output connectors 81 and 82.
The connection state signal is output to the microcomputer 71 via the input / output connectors 81 and 82 when the connection is made. The microcomputer 71 receives the connection state signal from the embroidery machine presence / absence detector 4 and operates the embroidery attachment 1.
0 is connected to the sewing machine body 5. When the connection state of the input / output connectors 81 and 82 is completely released, that is, the input connector 81 of the embroidery attachment 10 is completely pulled out of the output connector 82 of the sewing machine main body 5 and the electrical connection is made. When the connection state is completely released, the signal from the embroidery machine presence / absence detector 4 is not output to the microcomputer 71, and the microcomputer 71 recognizes that the embroidery attachment 10 is detached from the sewing machine main body 5.

The embroidery release switch 21 is connected to the interrupt terminal of the microcomputer 71 of the sewing machine main body 5 via the input / output connectors 81 and 82, and the input connector 8
1 is detected to be disconnected from the output connector 82 before the input connector 81 is disconnected from the output connector 82, and is output to the microcomputer 71.
The microcomputer 71 immediately controls the embroidery Y-direction drive circuit 77, the embroidery X-direction drive circuit 80, the Y-direction current control circuit 78, and the X-direction current control circuit 79 based on the detection signal output from the embroidery release switch 21. Thus, the supply of electric power to the embroidery Y direction drive motor 3 and the embroidery X direction drive motor 2 is stopped. That is, the microcomputer 71 determines whether the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2
In this case, the power supply to the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 is minimized or set to zero.

The input connector 81 is connected to an output connector 82 provided on the sewing machine main body.
Of the embroidery attachment 10, the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2, the embroidery machine presence detector 4, the embroidery release switch 2, and the like.
1 is transmitted to the microcomputer 71, and when the embroidery machine presence / absence detector 4 and the embroidery release switch 21 require electric power, they function so that electric power is transmitted from the sewing machine main body 5 to them. .

Next, the structure of the connection portion of the embroidery attachment 10 to the sewing machine body 5 will be described. The input connector 81 of the embroidery attachment 10 is shown in FIGS.
As shown in FIG. 5, it is attached to the side surface of the connecting slider 12A. By moving the connecting slider 12A in the approaching direction with respect to the sewing machine main body by operating the operation means 50 described later,
The input connector 81 projects from the contact surface 40 of the embroidery attachment 10 with the sewing machine body toward the sewing machine body (see FIGS. 3 and 4), and can be connected to the output connector of the sewing machine body 5. Become.

The connecting slider 12A
The input connector 81 is disengaged from the output connector of the sewing machine main body 5 by moving the
It moves toward the inside of the embroidery attachment 10 (FIG. 5).
reference). The connecting slider 12B is attached to the connecting slider 12A. The connecting slider 12B can be moved integrally with the connecting slider 12A in the approaching direction or the separating direction with respect to the sewing machine main body by operating the operation means described later. Note that these connecting sliders 12A and 12B can be reciprocated linearly by a guide (not shown). These connecting sliders 12A and 12B
As described above, the connecting sliders 12A and 12B can be moved integrally by the operation means described later, but since the connecting sliders 12A and 12B are connected by the following connecting mechanism, the connecting slider 12B can be temporarily moved from the connecting slider 12A. Can be separated from each other.

That is, as shown in FIG. 3, the connecting slider 12A has a substantially convex planar shape, and the connecting slider 12B has a substantially concave planar shape. It has a combined structure. In addition, these connecting sliders 1
2A and the connecting slider 12B are connected by a connecting pin 13. The end of the rod 13a of the connecting pin 13 is fixed to a rectangular parallelepiped part of the connecting slider 12A.
Is passed through a through hole 12a (not shown) provided in the connecting slider 12B. Also,
A coil-shaped spring 14 is provided around the rod-shaped portion 13a of the connection pin 13, and the connecting slider is pressed against the rectangular parallelepiped portion of the connecting slider 12A by the urging force of the spring 14. I have.

When the operation means 50 described later is operated in the direction away from the sewing machine main body 5, first, the connecting slider 12B moves against the urging force of the spring 14. Thereafter, when the spring 14 is compressed to the limit (see FIG. 5), the head 1 provided at the tip of the connecting pin 13
A force for moving the connecting slider 12A in the separating direction acts on the rectangular parallelepiped portion of the connecting slider 12A via 3b, and the connecting slider 12B and the connecting slider 12A move integrally in the separating direction (see FIG. 5).

Next, the operation means 50 for moving the connecting slider 12B and the connecting slider 12A will be described. This operation means 50 is provided in FIG.
As shown in FIG. 1, an operation lever 15 operable from the outside of the embroidery attachment 10, a first slide lever 16 rotatably attached to the operation lever 15, and a rotatable pivot on the first slide lever 16. The second slide lever 17 attached, and the second slide lever 17
Attached to the connecting slider 12
And a slide fulcrum plate 18 fixed to B.

As shown in FIG. 3, the grip 15a of the operation lever 15 projects outside the embroidery attachment 10, and the grip 15a is gripped by a finger to move the entire operation lever 15 in parallel. Can be. A first slide lever 16 is rotatably attached to a portion of the operation lever 15 housed inside the embroidery attachment 10.

One end of the first slide lever 16 is
As described above, it is rotatably attached to the operation lever 15, and the other end is rotatably attached to the first fulcrum 19 inside the embroidery attachment 10.
Therefore, when the operation lever 15 is moved in parallel, the entire first slide lever 16 swings about the first fulcrum 19.

The second slide lever 17 is provided with a long rectangular shaft slide hole 17a at a portion slightly closer to the center from one end, and the shaft fixed to the first slide lever 16 is It is rotatably and slidably mounted in the shaft slide hole 17a. The other end of the second slide lever 17 is attached to the embroidery attachment 1.
It is rotatably attached to a second fulcrum 20 in the inside of the 0 ’. Therefore, when the operation lever 15 is moved in parallel to swing the first slide lever 16, the entire second slide lever 17 swings about the second fulcrum 20.
The slide fulcrum plate 18 has a long rectangular shaft slide hole 1.
8a is provided, and a shaft fixed to the second slide lever 17 is rotatably and slidably attached to the shaft slide hole 18a. The sliding fulcrum plate 18 is connected to the connecting slider 1 as described above.
2B.

Since the operating means 50 has the above-described mechanism, when the operating lever 15 is moved, the first slide lever 16 rotatably attached to the operating lever 15 moves the first fulcrum 19 to the first fulcrum 19. Swings about a center, a second slide lever 17 rotatably attached to a shaft fixed to the first slide lever 16 swings about a second fulcrum 20, and then the second slide lever 17 The sliding fulcrum plate 18 attached to the shaft fixed to the shaft and the connecting slider 12B fixed to the sliding fulcrum plate 18 move. The operation lever 15
When the first slide lever 16 is swung, the shaft fixed to the first slide lever 16 moves to the first fulcrum 1.
When the second slide lever 17 is swung in accordance with the movement along an arc-shaped locus around the center 9, the shaft fixed to the second slide lever 17 rotates in a circle around the second fulcrum 20. The axes move along an arc-shaped trajectory. These axes are, as described above, elongated shaft slide holes 17a and 18a, respectively.
Therefore, the slide fulcrum plate 18 and the connecting slider 12B can move linearly without being hindered by the arc-shaped movement of these shafts.

When the first slide lever 16 is swung by the operation lever 15 and the second slide lever 17 is swung accordingly, the shaft fixed from the second fulcrum 20 to the first slide lever 16 is rotated. Than the distance to the second
The distance from the fulcrum 20 to the shaft fixed to the second slide lever 17 is longer. By thus adopting a structure combining two types of slide levers, it is possible to increase the moving distance of the slide fulcrum plate 18 and the connecting slider 12B.

When the operating means is moved in the direction away from the output connector, the connecting slider 12B moves against the urging force of the spring 14 as described above. At this time, since a relatively large frictional force due to the connection with the output connector is acting on the input connector 81, the amount of movement of the input connector 81 and the connecting slider 12A is extremely small.

Thereafter, when the spring 14 is compressed to the limit (see FIG. 4), the spring 14 is moved in the separating direction to the rectangular parallelepiped portion of the connecting slider 12A via the head 13b provided at the tip of the connecting pin 13. Tensile force acts. When this tensile force becomes sufficiently larger than the above-mentioned frictional force, the input connector 81 is disengaged from the output connector, and
The connecting slider 12B, the connecting slider 12A, and the input connector 81 move integrally in the separation direction (see FIG. 5).

That is, when the input connector 81 is disconnected from the output connector by operating the above-mentioned operation means, first, the connecting slider 12B moves in the separating direction (see FIG. 4). Connector 81 is disconnected from the output connector, and the connecting slider 1
2A moves in the separating direction (see FIG. 5).

The delay of the connecting slider 12A as described above is caused by the structure in which the connecting slider 12A and the connecting slider 12B can move in parallel with each other, and the spring 14 is provided between the connecting slider 12A and the connecting slider 12B. It is achieved by being provided.
That is, the connecting slider 12A, the connecting slider 12B and the spring 14 are input connector delay means.

An embroidery release switch 21 is fixed to the connecting slider 12B. The embroidery release switch 21 is arranged at a position where it can be brought into contact with and separated from a contact point 22 provided inside the embroidery attachment 10. . That is, when the operation lever 15 is moved in the approaching direction with respect to the sewing machine main body 5, the embroidery release switch 21
2 that the embroidery release 21 has separated from the contact 22 at that time.
The signal is output to the sewing machine main body 5 via the control unit 2. When the embroidery release switch 21 is in contact with the contact 22, the embroidery release switch 21 contacts the contact 22 and outputs a signal to the effect that the embroidery release switch has not been released to the microcomputer 71 of the sewing machine main body 5. Reference numeral 71 denotes an embroidery Y direction drive motor 3 and an embroidery X direction drive motor of the embroidery attachment 10 via an embroidery Y direction drive circuit 77, an embroidery X direction drive circuit 80, a Y direction current control circuit 78, and an X direction current control circuit 79. 2 is controlled.

When the operating lever 15 is moved in the direction away from the sewing machine, the embroidery release switch 21
4 (see FIG. 4), detects that the operation lever 15 is disconnected from the sewing machine main body 5 via the output connector 82, and outputs the detection signal to the microcontroller via the input connector 81. Computer 71 or embroidery Y
Direction current control circuit 78 and embroidery X direction current control circuit 79
Output to Thus, the microcomputer 71 or the embroidery Y-direction current control circuit 78 and the embroidery X-direction current control circuit 79 control the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80, and
In addition, the amount of drive power from the embroidery X-direction drive circuit 80 to the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 is set to an amount at which the embroidery Y-direction drive motor 3 and the embroidery X-direction drive motor 2 stop. Thereby, the drive of the embroidery Y direction drive motor 3 and the embroidery X direction drive motor 2 is stopped. The timing at which the embroidery release switch 21 is separated from the contact 22 to cut off the drive signal is determined by the connecting slider 12.
A is adjusted so that A moves in the separating direction and before the input connector 81 is completely disconnected from the output connector.

In the embroidery sewing machine 1 according to the present embodiment, the operation lever 15 of the operating means is prevented from moving under specific conditions by the operation inhibiting means. That is, as shown in FIGS. 5 and 6, the operation lever interlocking plate 15b is fixed to the operation lever 15,
An operation lever blocking member 23 is provided near the end of the operation lever interlocking plate 15b on the side of the sewing machine. When the embroidery attachment 10 is removed from the sewing machine body, the operation lever blocking member 23 is operated. The movement of the lever interlocking plate 15b is prevented (see FIG. 6).

The operation lever stopper 23 is rotated about a fulcrum shaft 24 by a trigger pin insertion operation described later. When the embroidery attachment 10 is detached from the sewing machine main body, the operating lever stopper 23 is actuated by an urging means. The operation lever interlocking plate 15b is biased to a position where the operation lever interlocking plate 15b is prevented from moving. When the operating lever blocking member 23 rotates by a certain angle, the blocking state of the operating lever interlocking plate 15b is released,
The operation lever 15 becomes movable (see FIG. 7).

The embroidery attachment 10 has a trigger pin 25. This trigger pin 25 is shown in FIG.
As shown in FIG. 5, the embroidery attachment 10 is in contact with the sewing machine main body when the embroidery attachment 10 is detached from the sewing machine main body by the urging means. It is in a state of protruding from the surface 40 toward the sewing machine main body.

When the embroidery attachment 10 is mounted on the sewing machine main body, the trigger pin 25 presses the contact surface 40 of the embroidery attachment 10 by the contact surface (not shown) of the sewing machine main body, and the embroidery is performed. (See FIG. 3). When the trigger pin 25 is inserted in this manner, the pressed portion 23a provided on the operation lever blocking member 23 is pressed by the inserted trigger pin 25, and the operation lever blocking member 23 is pressed.
Rotate about the fulcrum shaft 24 (see FIG. 7). With this rotation, a blocking plate 23 provided on the operation lever blocking tool 23
Since b is out of the movement range of the operation lever interlocking plate 15b of the operation lever 15, the operation lever 15 can be moved (see FIG. 7).

The embroidery sewing machine according to the present embodiment further includes a temporary fixing means for temporarily fixing the embroidery attachment 10 to the sewing machine main body 5 when the embroidery attachment 10 is mounted on the sewing machine main body 5. Prepare. The temporary fixing means includes a projecting mechanism 30 provided on the embroidery attachment 10 and a concave portion 5 a provided on the sewing machine main body 5.

As shown in FIG. 8, the protruding mechanism includes a rotating lever 31 that rotates around a rotating shaft 33 in accordance with the operation of the operating lever 15, a through hole 32 provided in the embroidery attachment, and the like. And a hook portion 31 a is provided at one end of the rotating lever 31. Rotating lever 3
1, when the embroidery attachment 10 is detached from the sewing machine main body 5, the hook portion 31 a is urged toward the operation lever 15 by the urging means provided on the rotating shaft 33. It is in a state of being stored inside the attachment 10.

When the embroidery attachment 10 is detached from the sewing machine main body, the operation lever 15 is locked by a first locking portion 31 b provided on the lower surface of the rotating lever 31. Attach the embroidery attachment 10 to the sewing machine body 5
When the operation lever 15 is moved to the sewing machine main body 5 side, the operation lever 15 comes into contact with the lower surface of the rotation lever 31, and the rotation lever 31 rotates about the rotation shaft 33, The hook portion 31a protrudes from the through hole 32 and engages with the concave portion 5a provided in the sewing machine main body 5 (see FIG. 9). A second operation lever 15 is provided on the lower surface of the rotation lever 31.
When locked by the locking portion 31c, the rotating lever 31 is temporarily fixed in this rotated posture.

An auxiliary hook portion 31d is provided above the hook portion 31a of the rotating lever 31, as shown in FIGS. When the embroidery attachment 10 is detached from the sewing machine main body 5, the auxiliary hook portion 31 d
c (see FIG. 6), and when the trigger pin 25 is inserted and the operation lever blocking member 23 rotates about the fulcrum shaft 24, the protrusion 23c is moved along with this rotation to the auxiliary hook portion 31d. Is pressed down. As a result, the auxiliary hook portion 31 d is rotated (about the rotation shaft 33) to protrude from the through hole 32, and the concave portion 5 provided in the sewing machine main body 50 is provided.
1 (see FIG. 7). Note that the auxiliary hook portion 31d can be turned separately from the turning lever 31.

Since the embroidery attachment 10 has the above-described structure, the connecting slider 12A and the connecting slider 12B are slidable with each other, and the spring 14 is interposed between the connecting sliders 12A and 12B. Is provided. Therefore, when the connecting sliders 12A and 12B and the input connector 11 are moved in the direction away from the output connector by the operation means 50, the operation lever 15 is moved to the sewing machine main body 5.
By moving the connecting slider 12A away from the side, the connecting slider 12A can be moved away from the input connector 11. In other words, the separating movement of the connecting slider 12B and the input connector 11 can be delayed by the input connector delay means.

The operating means 50 including the operating lever 15
When the connecting slider 12B is moved in the separating direction, the connecting slider 12A also moves in the separating direction, and the input connector 81 can be disconnected from the output connector by this movement. By the operation of the connecting slider 12B, the embroidery release switch 2 is turned on before the input connector 81 is completely disconnected from the output connector.
1 is separated from the contact 22 and is connected to the microcomputer 71 or the embroidery Y-direction current control circuit 78 and the embroidery X-direction current control circuit 79 of the sewing machine main body 5 via the input / output connectors 81 and 82 which are still connected. Outputs a detection signal. The microcomputer 71, the embroidery Y-direction current control circuit 78, and the embroidery X-direction current control circuit 79 control the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 based on this signal to control the embroidery Y-direction drive. The amount of drive power to the motor 3 and the embroidery X-direction drive motor 2 is set to an amount at which the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 stop.

Therefore, before the input connector 11 is completely disengaged from the output connector of the sewing machine main body 5, the drive power of the drive motors 2, 3 output to the output connector can be stopped. Therefore, even when the embroidery attachment 10 is likely to be detached from the sewing machine main body due to an external impact or an erroneous operation during the embroidery sewing operation, the input connector 11 of the embroidery attachment 10 is connected to the output connector of the sewing machine main body. The drive power (including the drive signal) generated from the control means of the sewing machine main body 5 and input to the input connector of the embroidery attachment 10 can be cut off before completely removing the drive power. As a result, since the drive current is not suddenly interrupted, the embroidery X-direction drive circuit 80, the embroidery Y-direction drive circuit 77, etc., which are the circuits of the sewing machine main body, are driven by the drive motors 2, 3 ( Damage due to energy from the inductor component) can be prevented.

Next, the processing of the embroidery attachment attachment / detachment detecting device provided in the embroidery sewing machine will be described with reference to FIGS. When the power switch is turned on, as shown in step S1 of the flowchart of FIG.
It is determined whether or not the embroidery attachment 10 is connected to the sewing machine main body 5 on the basis of the signal from. If the embroidery attachment 10 is not connected, step S2
The process proceeds to step S3 if connected.

In step S2, sewing performed only by the sewing machine main body 5 without using the embroidery attachment 10, for example,
If a main stitch or a needle swing mechanism is provided, a main pattern sewing mode for performing stitching such as staggered sewing is executed. In the main body pattern sewing mode, the microcomputer 71 controls the embroidery X-direction drive motor 2 and the embroidery through the embroidery Y-direction drive circuit 77, the embroidery X-direction drive circuit 80, the Y-direction current control circuit 78, and the X-direction current control circuit 79. Control is performed so that power supply to the Y-direction drive motor 3 is not performed.

In step S3, the microcomputer 71 determines whether or not the operation lever 15 is inserted into the sewing machine main body 5 based on the detection of the embroidery release switch 21, that is, the input connector 81 is likely to be disconnected from the output connector 82. Judge whether or not it is, if it is invalid,
In other words, if it is about to escape, the process proceeds to step S4, where the display control circuit 75 is controlled to display the fact on the display 64 (see FIG. 11). At this time, since the embroidery release switch 21 is connected to the interrupt terminal of the microcomputer 71, even if the microcomputer 71 is performing other processing, the microcomputer 71 performs processing by giving priority to the detection signal from the embroidery release switch 21. Based on this detection signal, the embroidery Y-direction drive circuit 77, the embroidery X-direction drive circuit 80, the Y-direction current control circuit 78 and the X-direction current control circuit 79 are controlled to quickly drive the embroidery X-direction drive motor 2 and the embroidery Y. The driving of the direction drive motor 3 is stopped.

In step S3, if the detection of the embroidery release switch 21 is valid, that is, if the input connector 81 is connected to the output connector 82, the process proceeds to step S5 and the embroidery pattern is detected. Execute the sewing mode. In the embroidery pattern sewing mode, the microcomputer 71 controls the driving of the main motor 51 and sends the embroidery Y-direction drive circuit 77, the embroidery X-direction drive circuit 80, the Y-direction current control circuit 78, and the X-direction current control circuit 79 to the embroidery pattern. By outputting a drive signal, the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 supply power to the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 to drive the respective drive motors 2 and 3. In this way, embroidery sewing is performed.

In the embroidery pattern sewing mode, since the embroidery release switch 21 is connected to the interrupt terminal of the microcomputer 71, the embroidery X direction drive motor 2 and the embroidery Y direction drive motor 3 are operated and stopped. Regardless,
If the embroidery release switch is invalid in step S51, that is, if the input connector 81 is likely to be disconnected from the output connector 82, the process proceeds to step S52. Step S
At 52, the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 operate independently of the command received from the microcomputer 71 until the embroidery release switch 21 becomes invalid. The current supplied to the motor 3 is controlled to be smaller than the normal supply amount, and the power supply to the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 is stopped. At this time, the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 do not receive an instruction from the microcomputer 71, and the Y-direction current control circuit 7 based on the detection signal from the embroidery release switch 21.
8 and the X-direction current control circuit 79.

When the embroidery release switch 21 is invalidated, that is, when the invalidation signal is output from the embroidery release switch 21 to the microcomputer 71, the microcomputer 71 quickly returns to the embroidery Y direction drive circuit 77. Embroidery X direction drive circuit 80, Y direction current control circuit 78 and X
By controlling the direction current control circuit 79, the power supply to the embroidery X direction drive motor 2 and the embroidery Y direction drive motor 3 is stopped. Note that the Y-direction current control circuit 78 and X
If the direction current control circuit 79 is not provided, the embroidery Y direction drive circuit 77 and the embroidery X
By controlling the direction drive circuit 80, the drive of the embroidery X direction drive motor 2 and the embroidery Y direction drive motor 3 is stopped. As a result, the connection between the input / output connectors 81 and 82 is completely released, that is, before the input connector 81 is completely removed from the output connector 82, the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit The current supplied from 80 to the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 of the embroidery attachment 10 can be cut off. As a result, the drive current is not suddenly cut off, so that the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 of the control unit 7 of the sewing machine main body 5 have noise, malfunction, and back electromotive force caused by the inductor component. Thus, the embroidery attachment 10 can be safely pulled out without being destroyed.

After stopping the power supply to the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 in step S52, the process proceeds to step S53. Step S53
Then, the microcomputer 71 displays an error on the display 64 via the display control circuit 75 as shown in FIG. 13 and prompts the operator to connect the input connector 81 of the embroidery attachment 10 from the output connector 82 of the sewing machine body 5. Notify that it has come off. This allows the worker to be immediately notified of the current situation.

[Second Embodiment] The processing of the embroidery attachment attachment / detachment detecting device according to the second embodiment will be described with reference to FIG. The embroidery attachment attachment / detachment detection device according to the second embodiment has substantially the same configuration and effect as the embroidery attachment attachment / detachment detection device according to the above-described first embodiment. Are different. Therefore, only the processing will be described below. When the power switch is turned on, the microcomputer 71, based on the detection of the embroidery release switch 21, is about to disconnect the input connector 81 from the output connector 82 as shown in step S11 of the flowchart of FIG. A determination is made as to whether or not it is valid. If it is invalid, that is, if it is about to exit, the process proceeds to step S12. If it is valid, the process proceeds to step S13.

In step S12, the sewing is performed only with the sewing machine main body 5 without using the embroidery attachment 10, for example, the main body pattern sewing mode which is the sewing mode such as the stitching or the zigzag stitch if the needle swing mechanism is provided. Execute. In the main body pattern sewing mode, the microcomputer 71
Are the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 8
0, Y direction current control circuit 78 and X direction current control circuit 7
9 is not supplied to the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3. On the other hand, step S
At 13, the microcomputer 71 executes the embroidery pattern sewing mode. That is, the microcomputer 71
Controls the driving of the main motor 51 and outputs drive signals to the embroidery Y-direction drive circuit 77, the embroidery X-direction drive circuit 80, the Y-direction current control circuit 78, and the X-direction current control circuit 79, so that the embroidery Y Direction drive circuit 77, embroidery X
Power is supplied from the direction drive circuit 80 to the embroidery X direction drive motor 2 and the embroidery Y direction drive motor 3 so that each drive motor 2.
The embroidery sewing is performed by driving No.3.

In the embroidery pattern sewing mode, since the embroidery release switch 21 is connected to the interrupt terminal of the microcomputer 71, the embroidery X direction is set as in the embroidery pattern sewing mode in the first embodiment. The drive circuit current amount supply stop processing is performed regardless of whether the drive motor 2 and the embroidery Y direction drive motor 3 are operating or stopped. Specifically, the microcomputer 71 operates the embroidery release switch 2.
If 1 is invalid, that is, if the input connector 81 is likely to be disconnected from the output connector 82, the microcomputer 71 gives priority to the detection signal from the embroidery release switch 21 even if the microcomputer 71 is performing other processing. Embroidery Y
By controlling the direction drive circuit 77, the embroidery X direction drive circuit 80, the Y direction current control circuit 78 and the X direction current control circuit 79, the drive of the embroidery X direction drive motor 2 and the embroidery Y direction drive motor 3 is stopped immediately.

During this processing, the embroidery Y-direction drive circuit 7
7 and the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 that are driven via the embroidery X-direction drive circuit 80 are stopped.
And the current supplied to the embroidery Y-direction drive motor 3 is controlled to be smaller than the normal supply amount. At this time, the embroidery Y-direction drive circuit 77 and the embroidery X-direction drive circuit 80 do not receive a command from the microcomputer 71, and the Y-direction current control circuit 78 and the X-direction current control circuit 79 based on the detection signal from the embroidery release switch 21. May be controlled by As described above, the embroidery X-direction drive motor 2 and the embroidery Y-direction drive motor 3 are controlled to be stopped before the connection of the input / output connectors 81 and 82 is completely released. The same effect as the attachment attachment / detachment device can be obtained.

Thereafter, the microcomputer 71 displays an error on the display 64 via the display control circuit 75 (FIG. 13).
), And gives the output connector 8 of the sewing machine body 5 to the operator.
2 to the input connector 81 of the embroidery attachment 10
Notify that it has come off. This allows the worker to be immediately notified of the current situation. In the above embodiment, the embroidery sewing machine including the sewing machine main body and the embroidery attachment attached to the sewing machine main body has been described. However, the present invention is not limited to this. The present invention can be applied to any structure having a main body and an attachment connected to the main body of the electronic device to transmit a driving force from the main body of the electronic device. In addition, it is needless to say that the specific shape and the like of each member can be appropriately changed.

[0073]

According to the first aspect of the invention, before the attachment is completely detached from the electronic device main body, the amount of power supply to the drive unit is minimized or zero.
When the drive power generated from the control unit of the electronic device main body is minimized or set to zero, the attachment detaches from the electronic device main unit, and the attachment detaches from the electronic device main unit, thereby damaging the control unit on the electronic device main unit side. There is no.

According to the second aspect of the present invention, before the embroidery attachment is completely detached from the sewing machine main body, the X-shaped embroidery attachment is removed.
-Since the amount of power supplied to the Y drive unit is minimized or zero, the embroidery attachment comes off the sewing machine main body after minimizing or zeroing the driving power generated from the control means of the sewing machine main body, Unlike the related art, the control means on the sewing machine main body is not damaged by the embroidery attachment coming off the sewing machine main body.

According to the third aspect of the invention, the same effect as the second aspect of the invention can be obtained, and the stepping motor is controlled by the control means based on the detection of the detection means. The power supply is controlled so as to be further minimized or zero as compared with the case where the driving of the stepping motor is stopped, and the driving is stopped. Accordingly, the control means on the sewing machine main body side is not damaged by the embroidery attachment coming off the sewing machine main body.

According to the fourth aspect of the invention, the same effects as those of the second or third aspect of the invention can be obtained, and after the state where the sewing machine main body and the embroidery attachment are connected is detected. The disconnection detection means detects before the connection state of the connection means, that is, the connection state between the embroidery attachment and the sewing machine main body is about to be released, is detected by the connection release detection means. The drive of the XY drive unit of the embroidery attachment can be stopped by minimizing or zeroing the amount of power supply to the XY drive unit by the control unit based on the above.

[Brief description of the drawings]

FIG. 1 is a functional block diagram illustrating a configuration of an attachment / detachment detection device according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram illustrating a configuration of an attachment / detachment detection device according to the first embodiment of the present invention.

FIG. 3 is a plan view showing the internal structure of the embroidery attachment according to the first embodiment of the present invention, showing a state in which the input connector is protruded in a direction approaching the sewing machine main body.

FIG. 4 is a plan view showing the internal structure of the embroidery attachment according to the first embodiment of the present invention, in which one of the support means is moved in a direction away from the sewing machine body and a drive signal is cut off. It shows.

FIG. 5 is a plan view showing the internal structure of the embroidery attachment of the embroidery sewing machine according to the first embodiment of the present invention, in which both support means are moved in a direction away from the sewing machine main body, This shows a state in which the input connector is detached from the output connector.

FIG. 6 is an explanatory view when the embroidery attachment shown in FIG. 5 is cut along the line IV-IV and viewed from the sewing machine main body side.

FIG. 7 is an explanatory view showing a state in which the trigger pin is inserted into the embroidery attachment from the state of FIG. 6 and the operation lever blocking tool is rotated.

FIG. 8 is an explanatory diagram showing temporary fixing means of the embroidery sewing machine according to the first embodiment of the present invention.

FIG. 9 is an explanatory view showing a state in which the embroidery attachment is temporarily fixed to the sewing machine main body by operating the temporary fixing means shown in FIG. 8;

FIG. 10 is a flowchart illustrating processing of the attachment / detachment detection device according to the first embodiment of the present invention.

FIG. 11 is a diagram showing an example of a display example of an error state displayed on the display unit by the microcomputer in FIG. 10;

FIG. 12 is a diagram for explaining processing of the attachment / detachment detection device according to the first embodiment of the present invention;
7 is a flowchart for describing processing during an embroidery pattern sewing mode shown in FIG.

FIG. 13 is a diagram showing an example of a display example of an error state displayed on the display unit by the microcomputer in FIG.

FIG. 14 is a flowchart illustrating processing of the attachment / detachment detection device according to the second embodiment of the present invention.

FIG. 15 is a diagram illustrating an example of an embroidery sewing machine that performs embroidery sewing by attaching an embroidery attachment to the sewing machine main body.

FIG. 16 is a functional block diagram of a conventional embroidery sewing machine.

FIG. 17 is a view showing a connector portion for electrically connecting an attachment of the embroidery sewing machine to a main body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Embroidery sewing machine 2 X direction drive motor (XY drive part) 3 Y direction drive motor (XY drive part) 4 Embroidery machine presence / absence detector (connection detection means) 5 Sewing machine main body (electronic device main body) 7 Control part (Control unit: drive control unit) 10 Attachment for embroidery (attachment) 21 Embroidery release switch (detection unit: disconnection detection unit) 22 Sensor (detection unit: disconnection detection unit) 50 Operating unit 51 Main motor (main motor) 71 Microcomputer (drive control means: control means) 77 Embroidery Y direction drive circuit (drive control means: control means) 80 Embroidery X direction drive circuit (drive control means: control means) 81 Input connector (connection means) 82 Output connector (Connection means)

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 3B150 AA15 CB04 CE01 CE02 CE03 CE09 CE22 EB03 EB10 EB13 GD03 GD25 GD26 GE03 GF02 GF03 GG04 JA02 JA03 JA07 LA07 LA24 LA29 LA40 LA73 LB01 LB02 MA02 MA06 NA07 NA23 NB02 NB09 NC02 NC03 NC06 QA06 QA07

Claims (4)

[Claims] 1. An attachment attachment / detachment detection device that is mounted on an electronic device main body and includes a driving unit that is driven by being supplied with power from the mounted electronic device main body, wherein the electronic device main body and the attachment are connected to each other. Connection means for connecting and supplying power to the drive unit of the attachment from the electronic device body; connection detection means for detecting that the attachment is connected to the electronic device body; and disconnecting the connection means. Operating means for operating the operating means, disconnection detecting means for detecting that the operating means has been operated before the disconnection, and the attachment before the connection state of the connecting means is released based on the detection of the disconnection detecting means. Control means for minimizing or zeroing the amount of power supplied to the drive unit of the attachment. 2. An XY system for moving an embroidery frame in the XY directions.
An embroidery attachment having a drive unit, an input connector for inputting drive power for driving the XY drive unit, a main motor for moving needles up and down, and driving the XY drive unit By supplying drive power, the main motor and the X
-Drive control means for controlling the drive of the Y drive section;
A sewing machine main body having an output connector for outputting drive power of the Y drive unit, and connecting the input connector and the output connector when the embroidery attachment is mounted on the sewing machine main body. A connection detecting means provided on the embroidery sewing machine for transmitting the driving power of the XY motor, and detecting that the embroidery attachment is connected to the sewing machine body by connecting the input / output connector; Operating means for unplugging the connector from the output connector; detecting means for detecting that the operating means has been operated before the input connector comes off the output connector; and Control means for minimizing or eliminating power supply to the XY drive unit in order to stop driving of the XY drive unit. Detection device for embroidery attachments. 3. The embroidery attachment attachment / detachment detection device according to claim 2, wherein the XY drive unit includes a stepping motor capable of moving the embroidery frame in the X direction and the Y direction by being driven. The control means controls the supply of electric power to the stepping motor based on the detection of the detection means so as to be smaller or zero than when the driving of the stepping motor is stopped. Detection device. 4. The embroidery attachment attachment / detachment detection device according to claim 2, wherein the control unit detects a connection state between the input connector and the output connector by the connection detection unit. An embroidery attachment attachment / detachment detection device, wherein the drive of the XY drive unit is stopped based on the detection of the detection means.