JPH01201295A - Sewing machine operating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention has a plurality of actuating devices for a presser foot plate, a binder, a folding plate, etc., such as a welt sewing machine, and each actuating device This relates to a sewing machine that operates to clamp work cloth and perform sewing work.

[Prior Art] Conventionally, as this type of sewing machine, for example, the Tokkyo 62-1
As proposed by the applicant in No. 09354, a foot switch device is provided which includes a plurality of switches that are sequentially closed by multi-stage operation of a footboard, and when the plurality of switches are closed, the plurality of actuating devices There are devices that clamp the work cloth by sequential operation. In this welt sewing machine, the first and second steps of the foot switch are for the left and right presser plates, the third step is for the binder and folding plate, and the fourth and fifth steps are for the left and right flaps. Each one corresponded to a presser foot. That is, the first step of the foot switch is the left large presser plate, the second step is the right large presser plate, the third step is the binder and folding plate, the fourth step is the left flap presser, and the fifth step is the right flap presser. each operates.

[Problems to be Solved by the Invention] However, in the conventional device, the order of actuation of the actuating devices by stepping on the foot switch is fixed, and therefore the operator cannot arbitrarily change the order of actuation. It has difficult problems.

That is, for example, when the first step of the foot switch is pressed, the left large presser plate,
A state in which the right large presser plate is activated when the second step is pressed, the binder and folding plate are activated when the third step is pressed, the left flap presser is activated when the fourth step is pressed, and the right flap presser is activated when the fifth step is pressed (
(referred to as the 5-step operating state), the first step of the foot switch
Change to a state in which the left and right large presser plates operate simultaneously when the step is depressed, the binder and folding plates operate when the second step is depressed, and the left and right flap pressers operate simultaneously when the third step is depressed (referred to as the 3-step operating state). is difficult.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a sewing machine operating device that can easily change the operating order of the operating devices.

[Means for Solving the Problems] In order to achieve this object, the operating device for a sewing machine of the present invention is configured to operate a plurality of actuating devices in response to operating position signals sequentially generated from a position detecting means by operating a manual operating body. a memory means for storing a plurality of operation orders; a selection means for selecting an arbitrary operation order among the plurality of operation orders; and a selection means for selecting an arbitrary operation order from among the plurality of operation orders; control means for controlling the

[Operation] According to the present invention having the above configuration, when the operator selects a desired operation order in advance using the selection means, the control means detects the position by operating the manual operating body according to the selected operation order. Each actuating device is actuated in response to position signals sequentially generated from the means.

[Example] Hereinafter, an example in which the present invention is embodied in a welt sewing machine will be described in detail with reference to the drawings.

As shown in FIG. 1, a sewing machine body 1 is connected to a sewing machine table 2.
placed above. The needle bar 3 is provided on the arm portion of the sewing machine body 1 so as to be movable up and down, and two needles 4 are attached to the lower end thereof. Then, this needle 4 cooperates with a thread loop catcher (not shown) provided in the bed of the sewing machine main body 1.
Two parallel lockstitch seams are formed on the workpiece fabric.

As shown in FIGS. 1 and 2, the clamp device 5 has two positions on the sewing machine table 2: a preparation position in front of the needle 4 (the chain line position in FIG. 1) and a sewing position near the needle 4. It is arranged so that it can move along a straight line. As is well known in the art, this clamping device 5 includes a pair of left and right large pressers it6 that can be raised and lowered to press and hold the body cloth w1 as a work cloth on a table surface, and a work cloth placed on the body cloth Wl. Fold the beaded cloth W2 from both sides to make the body cloth Wl.
A pair of folding plates 7 held above that can be opened and closed in the horizontal direction
, and a pair of left and right flag pressers 8 which can be raised and lowered to press and hold a flap cloth W3 as a work cloth placed on the welt cloth W2 on a folding plate 7 if necessary.

The binder 9 is disposed above the sewing machine table 2 so as to be movable up and down so as to extend from the preparation position of the clamp device 5 to the sewing position. As is well known in the art, this binder 9 has an almost inverted T-shaped cross section, and
After the beading cloth w2 is placed on top, the beading cloth w is lowered onto the beading cloth W2 prior to the folding operation of the folding plate 7.
2 is pressed and held on the body cloth Wl.

Then, with the clamp device 5 moved to the ready position shown by the chain line in FIG.
By the cooperation of the flap presser body 8 and the binder 9, as shown in FIG. In this state, as the clamp device W5 moves, each of the fabrics w1 to W3 is moved from the preparation position to the sewing position, and the fabrics w1 to W3 are sewn by cooperation of the needle 4 and the thread loop catcher.

Next, the manual operating body for operating the clamp device 5 and the binder 9 will be described in detail.
As shown in the figure, a foot operation body 10, which is elastically held as a manual operation body as shown in FIG. 23a to 23e are arranged in pairs with the light sources 24. Then, by stepping on the tread plate 25 of the foot operation body 10, the light shielding body 26 is
are moved between the switches 23a to 23e and the light source 24, and as the front side is stepped down, the front switches 23a to 23e are moved between the switches 23a to 23e and the light source 24.
23e are turned on sequentially. This light source 2
4. The front switches 23a to 23e and the light shield 26 constitute a position detection means.

A central processing unit (CPU) 11 constitutes a control means and a selection means, and the CPU II includes a read-on memory (ROM).
>12 and random access memory as storage means (
RAM) 13 is connected. The ROM 12 stores programs etc. for controlling the operation of the entire sewing machine.
The RAM 13 has the large holding plate 6. Folding plate 7. Data regarding the operation steps of a plurality of actuation devices including the flap presser body 8, binder 9, etc. is stored.

The CPU II includes a foot operation body 109 for the clamp.
Activation activation step switch 22. A start switch 14 of the sewing machine that can be operated with the knee or the like and a flap stitch switch 21 that is operated during flag stitching are connected via an input interface 15, from which various signals are input to the CPU II. The CPU II also includes various actuators 16 for operating the clamp actuating device group and a sewing machine motor 17 for driving the sewing machine.
are connected via the output interface 18 and drive circuits 19 and 20, and a drive or stop signal is output from CPULL to them.

Now, in the sewing machine operating device configured as described above, when the operation step selection switch 22 indicates 5 steps, the CPU II operates according to the flowcharts shown in FIGS. 5 and 6, and selects the operation step. If the switch 22 indicates 3 steps, the operation follows the flowchart shown in FIG.

To explain from the case of 5 steps, step S in Fig. 5
When the foot pedal operating body 10 is depressed by one step in Step 1, the front pedal switch 23a is turned on and the CPU 11 proceeds to step S3. When it is off, the process advances to step S2 and then returns. If you proceed to step $3, CPt
Jll lowers the right large presser plate 6 and presses the front switch 23b.
It is determined whether or not the front pedal switch 23b is turned on.
When is off, the process proceeds to step S5, where it is further determined whether or not the front pedal switch 23a has been turned on.

When the front pedal switch 23a is on, the CPU II returns to step S4, and when it is off, the CPU II proceeds to step S6, raises the right large presser plate 6, and then returns to step S1.

On the other hand, in step S4, when the front pedal switch 23b is on, the CPU II lowers the right large presser plate 6 and proceeds to step S8. When the front pedal switch 23c is off in step S8, the CPU 11 proceeds to step S9, and further determines whether the front pedal switch 23b is turned on. When the front pedal switch 23b is on, cputt
returns to step S8, and when it is off, proceeds to step SIO, raises the right large presser plate 6, and then returns to step S4.

On the other hand, in step S8, when the front pedal switch 23C is on, the CPU II lowers the binder 9, then causes both folding plates 7 to protrude from both large holding plates 6, and in step S81
Proceed to 3. In step S13, the front pedal switch 2
3d is off, the CPU1l proceeds to step S14, and further determines whether or not the front pedal switch 23c has been turned on.

When the front pedal switch 23c is on, the CPU II returns to step S13, and when it is off, the CPU II proceeds to step S16, where the double folding plate 7 is pulled into the double presser plate 6, and the binder 9 is raised. Return to step S8.

On the other hand, in step 313, when the front pedal switch 23d is on, the CPU II lowers the right flag presser body 8 and proceeds to step S18.

In step S18, when the front pedal switch 23e is off, the CPU II proceeds to step S19, and further determines whether the front pedal switch 23d is turned on. When the front pedal switch 23d is on, the CPU 1l goes to step S1.
If the right flap presser body 8 is off, the process advances to step S20 to raise the right flap presser body 8, and then returns to step 313.

On the other hand, in step 818, when the front pedal switch 23e is on, the CPU II lowers the left flag holder 8, and proceeds to step S22. In step 322, when the start switch 14 is off, the CPU II proceeds to step 823, and further determines whether the front pedal switch 23e has been turned on. When the front pedal switch 23e is on, the CPU 1 returns to step S22, and when it is off, the process proceeds to step S24, and after raising the left flap presser body 8, the process returns to step S18.

On the other hand, in step S22, the CPU II returns when the start switch 14 is on, and the sewing machine is operated by starting the sewing machine motor 17 to perform welt stitching with a flap.

Further, when the operation step selection switch 22 indicates three-step operation, the CPU II operates according to the flowchart shown in FIG. When the foot operating body 10 is stepped forward by one step in step 331 of FIG. 7, the front foot switch 23a is turned on and the CPU II proceeds to step 333. When the CPU II is off, the CPU II proceeds to step S32 and then returns. In step S33, C
Pu1l lowers the left and right Ogami boards and moves to step S34.
It is determined whether or not the front pedal switch 23b is turned on.

When the front pedal switch 23b is off, the CPU II proceeds to step S35, and further determines whether the front pedal switch 23a is turned on.

When the front pedal switch 23a is on, the CPU II returns to step 334, and when it is off, the CPU II proceeds to step S36, raises the left and right Okami eboards 6, and then returns to step 331.

On the other hand, in step S34, when the front pedal switch 23b is on, the CPU II lowers the binder 9 and then
The double folding plate 7 is made to protrude from the double folding plate 6, and Step S
Proceed to step 39. When the front pedal switch 23c is off in step S39, the CPU 1 proceeds to step S40, and further determines whether or not the front pedal switch 23b is turned on. When the front pedal switch 23b is on, the CPU
I returns to step 339, and if off, step S41
, the process proceeds to S42, the both folding plates 7 are pulled into the both person presser plates 6, the binder 9 is raised, and the process returns to step S34.

On the other hand, in step 339, when the front pedal switch 23c is on, the CPU II lowers the left and right flap pressers 8, and proceeds to step 344. In step S44, when the start switch 14 is off, CPtJl
l proceeds to step 345, and further presses the front pedal switch 2.
3c is turned on. Front pedal switch 23
When c is on, the CPU II returns to step 844, and when it is off, the CPU II proceeds to step S46, raises the left and right flag pressers, and then returns to step S39.

On the other hand, in step S44, the start switch 14
When is on, the CPU II returns, and the sewing machine motor 17 is started to operate the sewing machine to perform welt stitching with a flap.

As is clear from the detailed description above, when the operation step selection switch 22 is set to 3-step operation, the front pedal switches 23d and 23e are not used, so the amount of manual operation of the treadle 25 is reduced compared to 5-step operation. This can reduce the burden on the worker.

It should be noted that the present invention is not limited to the above-mentioned embodiments. For example, three or more types of actuation orders of the actuating devices may be stored in the storage means and arbitrarily selected by the selection means. You can. In addition, although a plurality of front foot switches 23a to 23e are used as the position detecting means in this embodiment, the resistance value of the variable resistor operatively connected to the foot plate 25 is divided into five stages, and each stage is divided into five stages. It is also possible to use a circuit that generates another detection signal. As described above, various changes can be made to the present invention without departing from the spirit thereof.

[Effects of the Invention] As is clear from the detailed description above, according to the present invention, a plurality of types of operating orders of a plurality of actuating devices operated for franging the work cloth can be stored in advance in the storage means. For example, since the operator can select any operation order from the memory means as needed, the operation order can be easily changed in response to changes in sewing conditions, and has the advantage of good operability.

[Brief explanation of the drawing]

1 to 7 show an embodiment embodying the present invention, and FIG. 1 is a perspective view of essential parts of a welt sewing machine;
Fig. 2 is a partially enlarged sectional view showing the state in which the work cloth is clamped by the flang device and the binder, Fig. 3 is a schematic diagram showing the switch configuration in the foot operating body, Fig. 4 is a block diagram showing the electrical configuration, and Fig. 5 7 to 7 are flowcharts showing the clamping operation of the CPU. In the figure, 6 is an Ogami plate, 7 is a folding plate, 8 is a flag holding body, 9 is a binder, 10 is a foot operation body, 11 is a CPU,
13 is a RAM (memory means), 16 is a clamp actuating device group, and 22 is an actuation step selection switch. Patent application Drawing by Katsuji Kawashima, President of Brother Industries, Ltd. Figure 2 2b W4 U9M etc. 6 hands
Continuing Amendment (Method) 1986 Patent Application No. 25894 2, Title of invention: Sewing machine operating device, Person making the amendment: Relationship with 11 cases: Patent applicant Mizuhoku Horita Doori address (467 ) 9-1135 Hotta-dori, Mizuho-ku, Nagoya Name (52B) Brother Industries, Ltd. 4, arrest W, date of order 1986 5J] 31 Ij (Shipping port) (1)
Figure 2 of the drawings will be corrected as shown in the attached sheet. that's all

Claims (1)

[Claims] 1. A plurality of actuating devices (6, 7, 8, 9) for clamping the work cloth (W1, W2, W3), and a manual operating body (1).
0), and position detection means (23a to 23e, 24, 26) that detects a plurality of operating positions of the manual operating body within the operating range of the manual operating body and generates a separate position signal for each, In a sewing machine that performs sewing work by activating each actuating device by operating a manual operating body to clamp a work cloth, the actuating device is actuated in response to position signals sequentially generated from the position detecting means by operating the manual operating body. A storage means (13) storing a plurality of sequences; a selection means (22, 11, etc.) for selecting an arbitrary sequence of operations from among the sequences stored in the storage means; An operating device for a sewing machine, comprising: control means (such as 11) for operating each actuating device according to the operation order of the manual operating body.