JPH0148791B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for automatically sewing side pockets and butt pockets of pants by sewing a facing cloth onto the pocket cloth using a sewing machine. .

That is, as shown in FIG. 2, this type of facing cloth 1 is made by folding back the cloth end 1a to make it double, and sewing the vicinity of this along the folded edge 2 to a thin pocket cloth 3. There is.

The method of the present invention is directed to this technical field.

[Conventional technology]

Conventionally, the pocket cloth 3 is set on the sewing machine table, the facing cloth 1 is folded in half, and the pocket cloth 3 is
He placed it on top of the needle and guided it to the needle drop point while holding both of them with his hands. An attachment for folding the facing cloth 1 in half was used experimentally in some cases.

[Problems to be Solved by the Invention] However, since this type of facing cloth 1 has flexibility, it is difficult to press and set the folded edges 2 neatly by aligning the ends 1a of the cloth short. Therefore,
It was necessary to increase the amount of folding of the fabric edge 1a more than necessary, or to press and set the folded edge 2 with an iron. In addition, with the conventional method of manually feeding the needle to the needle drop point, it is extremely difficult to sew the folded edge 2 and the seam 4 so that the distance between them is evenly aligned, and it requires a great deal of effort and considerable skill. There was a problem.

[Purpose of the invention]

The present invention has been proposed in order to solve such conventional problems, and it is possible to automatically fold the facing fabric in half and place it on the pocket fabric without any special skill, and then set the needle drop point on the pocket fabric. The purpose is to be able to feed the machine as it is and perform neat sewing.

[Means for solving problems]

As shown in FIG. 1, the present invention has a temporary fixing member A, a folding member B, a temporary holding member C, and a guide member D as main components, and these are generally moved as follows.

First, the facing cloth 1 is placed on the upper surface of the temporary fixing member A and held temporarily, and the cloth end 1a of the facing cloth 1 is allowed to hang downward. Part of the temporary fixing member A is fitted into the groove 13 of the folding member B, and the cloth end portion 1a of the facing cloth 1 is folded back to the lower surface side of the temporary fixing member A. At this time, it is desirable to blow out air from the folding member B so that the cloth end portion 1a can be smoothly folded back to the lower surface side of the temporary fixing member A.

Next, the fitted temporary fixing member A and folding member B are lowered onto the upper surface of the pocket cloth 3 already set on the table 6. The temporary holding member C is also lowered to temporarily hold the facing cloth 1 against the pocket cloth 3 through the temporary holding member A. From this state, the temporary fixing member A and folding member B are disengaged and both are retracted upward.

In this way, with the temporary press member C pressing the facing cloth 1 against the pocket cloth 3, the guide member D presses the folded portion of the facing cloth 1 against the pocket cloth 3, and then the temporary press member C is pressed upward. evacuate to.

Finally, the guide member D is moved to guide the vicinity of the folded edge 2 of the facing cloth 1 to the needle drop point P, and the facing cloth 1 is sewn onto the pocket cloth 3.

[Effects of the Invention] According to the present invention as described above, after the facing cloth 1 is temporarily held on the upper surface 9 of the temporary fixing member A with the cloth end 1a hanging downward, the temporary fixing member By simply partially fitting A into the groove 13 of the folding member B from the cloth end 1a side, the cloth end 1a of the facing cloth 1 can be automatically folded in half. The facing cloth 1 can also be automatically overlapped on the upper surface of the pocket cloth 3 set on the table 6 with the cloth end 1a folded in half. Then, the pocket cloth 3 and the facing cloth 1 can be automatically positioned and guided at the needle drop point P by the guide member D. There, the operator only needs to set the pocket cloth 3 on the table 6 and the facing cloth 1 on the temporary fixing member A, respectively. Therefore,
To automatically and efficiently sew a facing cloth 1 to a pocket cloth 3 without requiring special skill.

However, due to the mechanical movement of the guide member D, the folded cloth end 1a of the facing cloth 1 is moved against the pocket cloth 3.
can be neatly sewn along the folded edge 2. In other words, it is possible to sew the folded edge 2 and the seam 4 with a short interval, and it is not necessary to set the folded length of the cloth edge 1a to be larger than necessary, and a good finish can be obtained.

〔Example〕

FIG. 1 schematically shows the entire structure of a sewing machine for carrying out the method of the present invention, in which a temporary fixing member A, a folding member B, a temporary holding member C, and a guide member D are attached to a sewing machine main body 5.

The temporary fixing member A is disposed on the front side of the sewing machine main body 5 and above the table 6, and moves horizontally in the left and right directions and also moves up and down. This temporary fixing member A is formed in the shape of a hollow box, and the left half 7 is in the form of a thin flat plate, and the upper surface 9 is dotted with intake holes 10 that penetrate inside and outside, and the hollow interior is not shown. Vacuum is drawn from the air intake source. The left end edge 11 of the left half-plate portion 7 is formed into a knife edge shape, and in the figure, it is formed into fine irregularities between the front and the rear.

The folding member B is disposed opposite to the left side of the temporary fixing member A, moves up and down, and has a groove 1 on its opposing surface 12.
3 is formed across the front and back. The folding member B is also formed in the shape of a hollow box, and the fifth
As shown in the figure, an air jet hole 15 is provided at a position below the groove 13 of the facing surface 12 so as to extend through the front and back from the inside and outside, and air is jetted from the air jet hole 15 supplied from a compressed air source (not shown) inside the hollow interior. .

The temporary holding member C has a constant width on the left and right and is long in the front and back, has an elastic material 16 such as an elastic rubber plate fixed to its flat lower surface, and is located above the left side of the temporary holding member A. move.

The guide member D is formed in the shape of a plate with a narrow width on the left and right sides and long in the front and back.
It moves back and forth across the installation position 7, and also moves up and down.

Next, the procedure for operating these main components and sewing the facing cloth 1 onto the pocket cloth 3 as shown in FIG. 2 will be explained.

First step In FIGS. 3 and 4, the temporary holding member A and the folding member B are retracted above the table 6 and are waiting in a state separated from each other to the left and right, and the temporary holding member C
is retracted to the upper left side of the temporary fixing member A, and the guide member D is retracted to the rear.

In this state, the pocket cloth 3 is positioned and set on the front side of the table 6.

On the other hand, the facing cloth 1 is spread out and placed on the upper surface 9 of the temporary fixing member A. At this time, the air inside the hollow part of the temporary fixing member A is sucked, and the left cloth end 1 of the facing cloth 1 is
The intake hole 10 is placed in a state where a hangs down by a predetermined amount.
Hold by adsorption.

In this way, the setting of the pocket cloth 3 and the facing cloth 1 is done manually, but after that, each member is automatically operated by turning on the start switch.

Second Step First, the temporary fixing member A moves horizontally to the left toward the folding member B. At this time, air is ejected from the ejection hole 15 of the folding member B as shown in FIG. A
Wrap it around the lower surface side of the flat plate part 7. Now, the cloth end portion 1a is folded back along the edge 11 of the flat plate portion 7, and while maintaining this state, the edge 11 portion of the flat plate portion 7 is guided into the groove 13 of the folding member B.

Third step In FIG. 6, the temporary fixing member A and the folded member B, which are partially in a fitted state, and the temporary holding member C
are lowered almost simultaneously onto the pocket cloth 3 set on the table 6 to form a solid line state. With this, the temporary holding member C presses down the upper surface 9 of the flat plate portion 7 of the temporary holding member A via the facing cloth 1 which is folded in half. Thus, the air suction of the temporary fixing member A and the air jetting of the folded member B are stopped.

Fourth step After the temporary fixing member A moves to the right from the state shown in FIG. 6 and the flat plate part 7 of the temporary fixing member A is pulled out from the groove 13 of the folded member B as shown by the solid line in FIG. As shown by the imaginary lines in the figure, the temporary fixing member A and the folding member B rise to their original standby positions and retreat.

At this time, since the temporary pressing member C presses the folded portion of the facing cloth 1 against the pocket cloth 3 from front to back, the position of the pocket cloth 3 and the facing cloth 1 will not shift on the table 6. do not have.

Fifth step: The guide member D, which was waiting at the rear, moves horizontally to the front side, descends at the front end of the movement,
As shown in FIG. 8, the guide member D is suddenly lined up on the left side of the temporary holding member C. This is because the guide member D presses down the part of the facing cloth 1 near the folded edge 2 of the cloth end 1a, and then the temporary press member C rises to the original standby position shown by the solid line in FIG. 8 and retreats. .

Sixth Step Finally, as shown in FIG. 1, the guide member D moves backward on the sewing machine table 6. With this, the pocket cloth 3 and the facing cloth 1 move on the table 6 together with the guide member D, and the position near the folded edge 2 of the cloth end 1a of the facing cloth 1 reaches the needle drop point P shown in FIG. 8, that is, the needle 17 and is sewn onto the pocket cloth 3. By setting the movement locus of the guide member D in advance, the seam 4 can be run in a straight line or in a curve at a position close to the folded edge 2, and the seam 4 can run in a straight line or in a curved line at a position adjacent to the folded edge 2. The distance from the eye 4 is always constant in the longitudinal direction.

In addition, the pocket cloth 3 and the facing cloth 1 are often sewn together with a certificate stamp (including cloth) interposed therebetween in actual implementation. In that case, for example, as shown in FIG. 4, a certificate stamp supply block 19 is separately attached to the sewing machine main body 5, and the certificate stamps are held one by one in this block 19, and after the above-mentioned fourth step is completed, the certificate stamp supply block 19 is is moved to feed the certificate stamp from the left side to the sewing position, and after simultaneously pressing the certificate stamp with the guide member D, the block 19 is returned to its original standby position.

[Another embodiment example]

Although the illustrated example is as described above, the present invention is not limited to the details.

For example, the pocket cloth 3 may be set on the table 6 after the facing cloth 1 is set on the temporary fixing member A.

In the illustrated example, suction action is used as a means for temporarily holding the facing cloth 1 on the temporary securing member A, but instead of this, the facing cloth 1 may be held on the upper surface of the temporary securing member A using a spring member or the like. It may also be retained. The operator may simply hold the facing cloth 1 placed on the temporary fixing member A by hand until the temporary fixing member A is fitted with the folding member B.

To fit the edge 11 of the flat plate portion 7 of the temporary fixing member A into the groove 13 of the folding member B, both the temporary fixing member A and the folding member B are moved horizontally,
Alternatively, only the folding member B side may be moved. In addition, in this step, the edge 1 of the flat plate portion 7
By considering the shapes of 1 and groove 13,
Air blowout from the folding member B can be omitted.

In addition, in the above-mentioned third step, the temporary holding member C
may descend later than the folding member A and the folding member B. In the fourth step,
The partially fitted state of both A and B may be released by moving both the temporary fixing member A and the folding member B, or by moving only the folding member B. Further, after the fitting between both A and B is released, which one is raised and returned to the standby position first can be freely controlled by changing the drive system.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a sewing machine that implements the method of the present invention. FIG. 2 is a perspective view illustrating a state in which a facing cloth is sewn onto a pocket cloth to which the method of the present invention is applied. 3 to 8 show the method of the present invention in the order of steps, FIG. 3 is a plan view explaining the first step, FIG. 4 is a front view explaining the first step, and FIG. 5 is a plan view explaining the first step. FIG. 6 is a front view of main parts explaining the process; FIG. 6 is a front view of the third step; FIG. 7 is a front view of the middle of the fourth step; FIG. 8 is a front view of the fifth step. It is a front view. A...temporary fixing member, B...folding member, C...
Temporary pressing member, D... Guide member, 1... Supporting cloth, 1
a... Cloth edge of facing cloth, 2... Folded edge, 3... Pocket cloth, 4... Seam, 5... Sewing machine body, 6...
Table, 7...Flat plate part of temporary fixing member, 9...Top surface of temporary fixing member, 10...Intake hole of temporary fixing member,
11... Edge of flat plate portion, 13... Groove of folded member, 15... Air jet hole of folded member, 17...
Needle, P...Needle drop point.

Claims (1)

[Claims] 1. Above the table 6, place the facing cloth 1 on the upper surface 9 of the temporary fixing member A having the thin flat plate part 7, with the cloth end 1a hanging down from the edge 11 of the flat plate part 7. a first step of temporarily fixing and holding, and while blowing air from the folding member B having the groove 13 to wind the hanging cloth end 1a of the facing cloth 1 on the temporary fixing member A into the lower surface side of the flat plate part 7; The flat plate part 7 is folded back from the edge 11 side of the groove 1 of the member B.
3, the temporary fixing member A and the folding member B are simultaneously lowered onto the upper surface of the pocket cloth 3 set on the table 6, and the temporary holding member C is lowered,
A third step of pressing down the facing cloth 1 on the flat plate part 7 of the temporary fixing member A with the temporary holding member C, and removing the flat plate part 7 from the groove 13 of the folding member B and folding it back with the temporary fixing member A. A fourth step of retracting the member B upward; and a fourth step in which the facing cloth 1 is folded back by the guide member D while the facing cloth 1 is temporarily pressed against the pocket cloth 3 on the table 6 by the temporary pressing member C. Fold the cloth edge 1a to the edge 2
A fifth step of retracting the temporary holding member C upward after pressing the pocket cloth 3 and the facing cloth 1 near the folded edge 2 of the facing cloth 1 using the guide member D. A method of sewing the facing cloth 1 onto the pocket 3 through a sixth step of moving the cloth so as to be guided to the needle drop point P. 2. A large number of intake holes 10 are provided on the upper surface 9 of the temporary fixing member A, which is formed in a hollow shape.
The sewing method according to claim 1, wherein the facing cloth 1 is held by suction. 3. Air blown from the folding member B is blown against the hanging cloth end portion 1a of the facing cloth 1 held on the temporary fixing member A, and while the cloth end portion 1a is rolled up on the lower surface side of the flat plate portion 7, the flat plate portion 7 is The sewing method according to claim 1 or 2, wherein the sewing material is fitted into the groove 13 of the folded member B from its end edge 11 side.