JPS6024301Y2 - Positioning device for fabric to be sewn in a sewing machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a positioning device for a cloth to be sewn in a sewing machine.

As shown in Figure 1, the upper and lower fly fabrics 1 and 2 that form the chest area of a polo shirt P are overlapped with their side edges positioned accurately, and then sewn together by cycle stitching C into a square shape at the base. .

However, in the past, the overlapping position of the upper and lower front fabrics 1 and 2 and the positioning of the seams were performed by the operator's eye, so the side edge of the lower front fabric 2 was shifted from the side edge of the upper front fabric 1. If they are overlapped and sewn as they are, the lower front declaration 2 of the sewn part will protrude from the upper front declaration 1, or there will be a part where the lower front declaration 2 and the upper front declaration 1 are not sewn together, or if the cycle stitch is on the upper side. There was a drawback that it was not formed at a fixed position from both side edges of the previous proclamations 1 and 2, resulting in a decrease in commercial value.

The object of this invention is to provide a positioning device for a cloth to be sewn in a sewing machine that can eliminate such drawbacks.

An embodiment of this invention will be described below based on the drawings.

In Fig. 2, reference numeral 3 denotes a fabric movement plate supported on the machine frame so as to be movable back and forth and left and right in synchronization with the up and down movement of the needle N on the top surface of the bed 4, and a rectangular needle in the center through which the needle N is inserted. Hole 5 is open.

6 is a presser arm supported on the machine frame so as to be movable back and forth and left and right in conjunction with the cloth moving plate 3; 7 is a support supported on the tip of the presser arm 6 so as to be movable up and down; 8 is a U on the support 7. The presser foot attached via the letter-shaped rotating body 9 is moved away from the bed 4 by the upward movement of the support 7 and comes into contact with the bed 4 through the needle hole 5 by the downward movement of the support 7.

The U-shaped rotating body 9 is configured to rotate by 180° when a stitch is formed in the portion of the fabric to be sewn corresponding to the U-shape.

Reference numeral 10 denotes a board placed on the sewing material moving plate 3 and arranged from the periphery of the needle hole 5 in a horizontal direction away from the needle hole 5;
A first lower front fabric guide is provided upright on the side edge of the substrate 10, and similarly to the substrate 10, it extends from the periphery of the needle hole 5 away from the needle hole 5 in the horizontal direction.

12 is a separation plate extending in a direction perpendicular to the first lower front fabric guide 11; 13 is an end face of the upper fabric fixed on the other side edge of the separation plate 12 in parallel with the first lower front fabric guide 11; This is Domae Tatefu Guide.

14 is a second lower front fabric guide 15 provided parallel to the first lower front fabric guide 11 on the cloth moving plate 3 below the separation plate 12;
This is a pedestal fixed on the cloth moving plate 3 in parallel with the lower front fabric guide 14 and the base plate 10 sandwiched therebetween.

Reference numeral 16 designates a regulating plate 17, which is placed on the cloth movement plate 3 to sandwich the needle hole 5 in a direction perpendicular to the upper front declaration guide 13 and the first lower front fabric guide 11, and aligns the ends of the upper and lower cloths. This is a leaf spring that presses and holds 12 from above.

A front fabric that holds the upper and lower fabrics at predetermined positions in the needle hole by the first lower fabric guide 11, the separating plate 12, the soil fabric guide 13, and the second lower fabric guide 14. A holding body A is constituted.

Incidentally, the first lower fly fabric guide 11 may be directly fixed on the cloth moving plate 3, in which case the substrate 10 is not required.

Next, the operation of this invention will be explained.

First, one end 2a of the lower chamber 2 of the garment shown in FIG. 1 is inserted between the second lower front cloth guide 14 and the separating plate 12 as shown in FIG. 1 Guide along the lower front cloth guide 11.

Next, guide the other end 2b of the lower chamber 2 along the second lower front fabric guide 14, pull the lower chamber 2 to the right in FIG. Match.

Thereafter, the other end 1b of the upper placket 1 of the garment is inserted from above the separating plate 12 as shown in FIG. 3, and guided along the upper cloth end surface guide 13.

Then, in the same manner as the lower chamber 2, pull the upper flylough 1 to the right in FIG.

Then, both ends of the upper fly 1 and the lower chamber 2 are overlapped in parallel with each other at a constant interval, and the cycle stitches are formed at the same distance from both ends of the upper fly 1 at the predetermined position of the needle hole 5. It will always be located at the same position.

Then, when the presser foot 8 is lowered, the upper flystand 1 and the lower chamber 2 are held between the presser foot 8 and the bed 4.

After that, when the sewing machine is driven, the presser foot 8 and the sewing material moving plate 3 are removed.
The needle N moves back and forth and left and right so that it falls between the presser foot 8 and the needle hole 5, and a rectangular cycle stitch as shown in Fig. 1 is formed in the upper placket 1 and the lower chamber 2. Ru.

As described above, according to this invention, the first lower front cloth guide, the second lower front cloth guide, the regulation plate, and the upper front declaration guide always keep the upper front at a predetermined position in the lower chamber. At the same time, the overlapping upper placket and lower chamber can be guided to the predetermined position of the needle hole, so the lower chamber will not protrude from the upper placket when being sutured, and the cycle stitches will be eliminated. The upper placket can always be formed at a predetermined position, and sewn products with little variation in quality and high commercial value can be provided.

[Brief explanation of the drawing]

FIG. 1 is a partial front view of a polo shirt, FIG. 2 is a partial perspective view of an embodiment of the device, and FIG. 3 is a sectional view taken along the line ■--■ in FIG. 3...Sewn cloth moving plate, 5...Needle hole, 1
1... First lower front standing cloth guide, 12... Separation plate, 13... Upper front proclamation guide, 14...
・Second lower front cloth guide, 16...Regulation plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A cloth moving plate having a needle hole and supported on the machine frame so as to be movable back and forth and left and right on the top surface of the bed in synchronization with the vertical movement of the needle, and a cloth moving plate that is interlocked with the cloth moving plate. The presser foot is supported on the machine frame so that it can move forward, backward, left and right, and can come into contact with and separate from the top surface of the bed through the needle hole in the cloth movement plate, and the workpiece is moved so as to guide one side edge of the lower front of the garment. A first lower front cloth guide provided upright on a plate, one side edge fixed to the upper end of the first lower front cloth guide, and the other side edge extending parallel to and apart from the sewing cloth moving plate. A separation plate, an upper front declaration guide that stands up on the other side edge of the separation plate and is parallel to the first lower front standing cloth guide so as to guide one side edge of the upper front declaration, and the other side edge of the lower front declaration. A second lower front fabric guide is arranged on the sewing material movement plate below the separation plate to be separated from the separation plate and parallel to and opposite to the first lower fabric guide. It consists of a front fabric holder extending in the horizontal direction away from the front fabric, and a regulating plate placed on the fabric movement plate to sandwich the front fabric holder and the needle hole so that the ends of the upper and lower fabrics are aligned. A device for positioning the fabric to be sewn in a sewing machine.