JPS6040199Y2 - Futon pattern sewing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an industrial sewing machine used for binding futons, etc.

When making futons, futon binding is necessary to prevent the cotton from moving against the fabric.

Mechanization of this futon binding work has already been achieved through the development of sewing machines that use the copying method.

This sewing machine has a movable base that holds the futon in the main body of the sewing machine, and a copying board with a guide rail on which a binding pattern is drawn is attached.On the other hand, the guide rail of the copying board is fitted onto the main body of the sewing machine and rotates. It is equipped with drive wheels that move the movable table according to the planar pattern of the guide rails, and by the action of these wheels, the futon is bound by straight stitching or zigzag stitching according to the pattern of the rails.

However, since the above-mentioned sewing machine moves the futon set on the movable table and sews the pattern using the rail and drive wheel, the drive wheel needs to move smoothly on the rail, and the edges of the square shape need to be rounded. However, the entire rail had to be shaped with a continuous curve, which had the disadvantage of limiting the pattern.

Therefore, an operating panel is attached to the movable base in place of a copying board, the drive wheel is brought into direct contact with this, the drive wheel is horizontally turned by operating the handle, and a switch is provided to start or stop the drive wheel and the sewing machine itself. A device that freely moves a movable base according to the pattern on the operating panel and sews a continuous or discontinuous pattern on the futon attached to the movable base is conceivable.
Furthermore, in recent years, a method has been used in which the operation of the movable base is computerized to sew patterns in a predetermined shape.

By the way, when attaching a futon to the movable base mentioned above, the movable base is attached by securing the outer periphery of the futon with clips etc. provided inside the frame, so the position of the futon relative to the sewing machine body must be accurate. is not constant.

However, the movable table of the above-mentioned device moves horizontally according to the rail on the copying board, the pattern on the work board, or the command from the computer, regardless of the pattern on the futon, so the edges of the pattern on the futon can be stitched accurately. It was not possible to do something like this, and there was an inconvenience that spoiled the feeling of a handmade luxury product.

In view of the above circumstances, the purpose of the present invention is to provide a futon pattern sewing machine that can perform stitching with the feel of a handmade luxury item. The drive wheels are configured to be able to rotate horizontally.

The present invention will be explained below with reference to the drawings.

1 to 7 show an embodiment of a futon pattern sewing machine (hereinafter referred to as the sewing machine) according to the present invention, and FIG. 1 is a diagram showing the structure of the sewing machine.

Reference numeral 1 in the figure indicates support boxes 2.2 (
(only one of which is shown in the figure), an upper beam 3as and a lower beam 3b provided across these support boxes 2,2.

A sewing machine head 4a is attached to the center of the lower part of the upper beam 3a, and a sewing machine base 4b is attached to the center of the upper part of the lower beam 2.
is attached to constitute the sewing machine main body 4.

Further, a holding portion 5 that holds the drive wheel 5a is attached to the center of the lower part of the lower beam 3b.

The sewing machine main body 4 and the driving wheel 5a are horizontally pivotable about the same vertical axis.

Further, the drive wheel 5a is in contact with an actuation plate 6 attached to a movable base 7.

The movable base 7 has wheels 7a at the bottom and is placed on a vertical rail 7c on a lateral movement plate 7b.The wheels 7d of this lateral movement plate 7b are placed on the horizontal rail 7e, so that the movable table 7 can be horizontally moved. It is configured.

Also, inside one of the above-mentioned support box 2, there are vertical and parallel columns.
A rotation shaft 8 and a drive shaft 9 rotationally driven by a motor 9a are provided.

The drive shaft 9 includes a first clutch 10 and a second clutch 1.
1 is provided.

The gear 10a of the first clutch 10 is engaged with a gear 8a fixed to the pivot shaft 8 via an intermediate gear 12, and when the first clutch 10 is engaged, the gear 10a is fixed to the drive shaft 9.
When cut, it becomes free with respect to the drive shaft 9.

Further, the first clutch 10 and the second clutch 11 are operated by an operation switch 11a, so that when one clutch is engaged, the other is disengaged.

The pivot shaft 8 has first, second, and third pivot pulleys 13.1.
4.15 is installed.

The first swing pulley 13 is rotated together with the sewing machine head 4a by an operation pulley 16, the second swing pulley 14 is rotated via an intermediate pulley 17 to rotate the sewing machine base 4b, and the third swing pulley 15 is held via an intermediate pulley 18. The portion 5 is rotated.

Further, a first clutch 10 is connected to the drive shaft 9 with a first clutch 10 in between.
, a drive sprocket 21 is attached to the lower part of the second drive pulleys 19, 20 and the second clutch 11, and drives the sewing machine head 4a, sewing machine base 4b, and drive wheel 5a through intermediate pulleys 22, 23 and intermediate sprocket 24, respectively. It is supposed to be done.

In addition, when the above-mentioned driving stops, the above-mentioned sewing machine head 4a
The stitching needle 4c is equipped with a well-known automatic fixed position stopping device (1983).
-161057), it is configured to stop in the up position.

Further, above the movable table 7 of the sewing machine main body 4 section, there is a second
As shown in the figures and FIG. 3, a workbench 30 is provided across the support boxes 2,2.

This workbench 30 is supported by reinforcements 31 attached to the support boxes 2, 2.

Further, the workbench 30 is provided with a lifting ladder 32 at a position that does not interfere with the horizontal movement of the movable table 7.

Further, as shown in FIGS. 4 and 5, the operating pulley 16 is provided on the side of the workbench 30 near the sewing machine head 4a, and has a handle so that the operator on the workbench 30 can operate it. 33 is installed.

This handle 33 is provided with a scale plate 33a for reading the turning angle, as shown in detail in FIGS. 6 and 7.

An adjustment switch 34 for starting, stopping, and adjusting the speed of the motor 9a that drives the drive shaft 9, and an operation switch lla for operating the first and second clutches 10 and 11 are provided in the operating range of the handle 33. .

Further, the handle 33 is connected to the shaft of the operating pulley 16 via a universal joint 35, and can be tilted to an angle that is easy to operate by loosening the bolt 36 as necessary.

Next, a method of using the futon pattern sewing machine according to the present invention constructed as described above will be explained.

First, the futon is attached to the movable base 7 by engaging the first clutch and disengaging the second clutch using the operation switch lla.

Next, the switch 34 is turned on to drive the drive wheel 5a, and the handle 33 is operated to move the movable table 7 horizontally so that the futon pattern is positioned at a predetermined position relative to the sewing machine body by visual inspection by the worker. and turn off the switch 34.

Then, by operating the handle, the direction of the sewing machine main body 4 is aligned with the stitching direction.

In this case, the sewing machine base 4b and the drive wheel 5a rotate in synchronization with the rotation of the sewing machine head 4a.

In the above operation, since the second clutch 11 is disengaged, only the driving wheel 5a is driven and the movable base 7 is moved horizontally.

Also, since the first clutch is engaged, the gear 10a is fixed to the drive shaft 9.

Therefore, the sewing machine head 4a1 and the sewing machine base 4b are rotated together with the drive wheel 5a by the bundle 33, but the rotation of the rotation shaft 8 is transmitted to the drive shaft 9 via the intermediate gear 12 and the gear 10a, rotate in the direction.

Therefore, the sewing machine drive pulley 3 that drives the sewing machine main body 4
7 is rotated in the same manner as the sewing machine main body 4, and the sewing machine drive pulley 37 does not rotate with respect to the sewing machine main body 4, but the stitching needle 4c
It won't fall down and touch the futon.

After the preparation for binding is completed, the second clutch is engaged and the first clutch is disengaged.

Next, the switch 34 is turned on and the drive shaft 9 is rotated to start stitching.

Since the worker operates the bundle 33 while visually checking the futon pattern from above the workbench 30, the binding stitches will not deviate from the pattern.

Further, by operating the switch 34 and the operation switch lla, discontinuous stitching, jump stitching, etc. can be freely performed.

Furthermore, if the type of sewing machine body 5 is selected appropriately, zigzag stitching is also possible.

In the above turning operation, the drive pulley 37 of the sewing machine main body 4
The stitches are supposed to change when the needle is rotated in the same direction as or in the opposite direction, but in reality, the difference is hardly noticeable.

In addition, the sewing machine head 4 loaded with needle thread that is relatively easy to break.
A is located near the operator, so it can be easily fixed, and there is no need to move the movable table 7 to the corner of the machine frame 1 every time the thread breaks as in the past, and then deal with the thread breakage. Without,
Able to take prompt action.

Although the workbench 30 is attached to the support boxes 2, 2 with high load resistance on both sides, it may be attached to the upper rack 3a.

However, in this case, if the load-bearing capacity of rice cake is low, it will bend,
Care must be taken because the mutual positions of the sewing machine head 4 as, sewing machine base 4 b, etc. will change and become unstable.

In addition, the worker was able to visually observe the futon pattern on the movable platform 7 from between the workbench 30 and the upper beam 1, but depending on the location of the workbench 30, the floor may be made of a transparent material or a viewing window may be installed. It may be provided.

In other words, the workbench 30 can be attached to any position or shape without any limitations as long as it allows the worker to easily see the stitched portion of the futon pattern and easily manipulate the bundle.

Further, the direction of the timing belt or the like may be adjusted vertically or horizontally by appropriately disposing an intermediate pulley, and the position of the intermediate pulley can be appropriately selected.

Therefore, the position of the operating pulley 16 is not limited to the above description.

Furthermore, the bundle of the operating pulley may be removed and the lower standby boo 'J16a connected to the pulley of the separately provided bundle using a belt, and the position of the bundle may be changed. Alternatively, the bundle may be directly attached to the sewing machine head. It's okay.

Furthermore, although the sewing machine main body 4 is designed to rotate in accordance with the stitching direction, if the sewing machine main body 4 is used which does not need to rotate in accordance with the stitching direction, the rotation mechanism of the sewing machine main body 4 can be used. And the first clutch 11 portion becomes unnecessary.

Furthermore, since the sewing machine according to the present invention horizontally moves the futon on the movable base 7 by the operating plate 6 of the movable base 7 and the drive wheel 5a, the contact state between the operating plate 6 and the drive wheel 5a is extremely important. , the occurrence of slippage during binding must be prevented.

Therefore, the driving wheel 5a is knurled, and the operating plate 6
The upper surface of the drive wheel 5a is covered with soft urethane rubber, or the drive wheels 5a are made of rubber tires, so that they do not slip against each other.

As mentioned above, the futon pattern sewing machine according to the present invention is
Since the stitching is performed visually by the worker, the stitching can be done in accordance with the pattern accurately.Also, it can be used in a wide variety of ways, such as discontinuous stitching and jump stitching, making it possible to obtain hand-made, luxury-like products at low prices. , which has many advantages.

It goes without saying that the sewing machine of the present invention can sew items other than futons.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the futon pattern sewing machine according to the present invention. FIG. 1 is a diagram showing its structure, FIG. 2 is a front view of the sewing machine, and FIG. Figure 2 is a view from the ■-■ line in Figure 2;
Fig. 6 is a front view of the bundle portion, and Fig. 7 is a side view of the bundle at an angle. 1... Machine frame, 2... Prop box, 3
a...Upper beam, 3b...Lower beam, 4...
... Sewing machine body, 4a ... Sewing machine head, 4
b... Sewing machine base, 4C... Binding needle, 5... Holding part, 5a... Drive wheel, 6
・・・・・・Operation board, 7・・・Movable base, Death...
... Rotating shaft, 8a ... Gear, 9 ... Drive shaft, 9a ... Motor, 10 ... First
Clutch, 10a...Gear, 11...
Second clutch, 11a... Operation switch, 12
......Intermediate gear, 13...First swing pulley, 14...Second swing pulley, 15...
・Third swing pulley, 16...Operating pulley, 16
a... Spare pulley, 17, 1B... Intermediate pulley, 19... First drive pulley, 20...
...Second drive pulley, 21...Driving sprocket, 22.23...Intermediate pulley, 24...
...Intermediate sprocket, 30...Workbench,
31... Reinforcer, 32... Ladder, 33
...Bundle, 33a...Scale plate, 3
4...adjustment switch (switch), 35...
...Universal joint, 36...Bolt, 37...
...Drive pulley of the sewing machine body.

Claims (1)

[Scope of utility model registration request] A movable base for supporting the futon is provided on the machine frame to which the sewing machine body is attached, so that it can move back and forth, left and right, and a drive wheel attached to the machine frame is attached to the operating plate attached to the movable base. In a futon pattern sewing machine that binds futons with the sewing machine main body by horizontally rotating the drive wheel and moving the movable base back and forth and left and right, the sewing machine has a workbench provided in the sewing machine main body, and a workbench provided in the operating table part. A futon pattern sewing machine with a drive wheel that can be rotated horizontally using a handle.