JPH0551260U - Zipper sewing machine - Google Patents

Abstract

(57) [Summary] [Purpose] When sewing a fastener between a lower cloth and an upper cloth, the positions of these sewn products should be easily and quickly aligned, and the seams to be formed should be properly linear. , Improve the quality of sewing products and eliminate waste sewing to reduce the consumables of the sewing machine. [Structure] A support plate 1 provided with a guide body G that aligns a lower cloth W1 and an upper cloth W2, and a fastener F is held on the support plate 1 so as to be rotatably and rotatably mounted and aligned with the fastener F. The fastener holding means 2, a holding device A having three steps of a presser foot for holding the upper cloth W2, and the holding device A is detachably supported and linearly moved below the sewing needle of the sewing machine M. And a sewing means B.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fastener sewing machine for sewing a fastener between a lower cloth and an upper cloth, and more specifically, it enables quick and easy positioning work of a sewn product without throwing away stitches, and at the same time, a proper sewing operation can be performed. The present invention relates to a fastener sewing machine that forms straight seams.

[0002]

[Prior Art]

 When the fastener F is sewn between the lower cloth W1 and the upper cloth W2 as shown in FIG. 5, as shown in FIG. 6, the fastener F is placed on the lower cloth W1, and the upper cloth W2 is further placed thereon. And the seams S are formed on them.

After the sewing of the seam S, the cloth W1 and W2 are turned over to put the leading ends of the cloth and the seam S inside to expose the coupling tooth Fa of the fastener F as shown in FIG. To

The other fastener (not shown) facing the fastener F shown in the figure is also sewn in the same manner as described above.

By the way, when sewing the seam S shown in FIG. 6, even if a fastener F is sandwiched between both cloths W1 and W2 and they are sewn at once, the fastener F is hidden by the upper cloth W2 and visually inspected. Therefore, the fastener F is displaced and the sewing is sewn.

Further, when sewing the fastener F, as shown in FIG. 5, the distance H between the coupling tooth portion Fa and the cloth end of the fastener F needs to be in a parallel state, and the distance H is the same in the same sewn product. Must be at the same interval, that is, the quality of the sewn product must be stable.

In order to respond to such sewing of the fastener F, today, the fastener F is placed on the lower cloth W1, first both are sewn once, then the upper cloth W2 is placed on the fastener F, and the lower cloth W1 , The fastener F and the upper cloth W2 are sewn.

The stitches formed by sewing the lower cloth W1 and the fastener F become an inner side when both cloths W1 and W2 are turned upside down, and the person skilled in the art can sew these seams without sacrificing the appearance. Is called.

[0009]

[Problems to be solved by the device]

 However, the conventional fastener sewing method described above has the following problems.

The positioning of the lower cloth W1 and the fastener F, and the positioning of the upper cloth W2 necessitate complicated work requiring a lot of time in an unnatural posture, and cause a decrease in sewing work efficiency. Became.

Further, since the sewing work by the sewing machine is temporarily suspended during the alignment, the alignment work and the sewing work are alternately performed, which reduces the production efficiency.

[0012] To sew the space H shown in Fig. 5 so as to be in a parallel state properly, a skilled sewing technique is required, and the space H varies depending on the operator. It causes the inconvenience.

[0013]

[Means for Solving the Problems]

 The fastener sewing machine according to the present invention has been made to solve the above-mentioned conventional problems, and is provided with a holding means for holding the upper cloth, the lower cloth, and the fastener in the sewing position state, and a sewing machine, and the holding device is detachable. Sewing means for freely supporting and linearly moving below the sewing needle, wherein the holding device includes a support plate having a longitudinal through hole through which the sewing needle of the sewing machine is inserted, and a penetrating support plate. A guide body that is provided in the vicinity of the hole and that abuts on the leading ends of the lower and upper cloths to align the sewn portions of these cloths with the through holes, and a holding portion that holds the fastener engagement portion at the tip. The other end is rotatably supported by the support plate so that the sewn portion of the fastener is above the through hole through the lower cloth when the cover is in the laid state, and one end is the support plate. When it is laid up and down, it is supported so that it can be raised and lowered. And a holding means for holding the tip of the upper cloth to be placed above the fastener at the tip end portion, and the sewing means is a mounting means for detachably supporting the holding device, and a covering member at the time of sewing. To prevent displacement of the sewn product, a pressing device for pressing the holding means from above and a moving device for supporting the attaching device and the pressing device and moving them linearly below the sewing needle of the sewing machine are provided. The above-mentioned conventional problems are to be solved.

[0014]

[Action]

 In the fastener sewing machine according to the present invention, the lower cloth is brought into contact with the guide body provided on the support plate for alignment.

Then, the fastener is held by the fastener holding means, and the fastener holding means is laid down to press the lower cloth and align the fastener with the upper surface of the lower cloth.

Then, the upper cloth is positioned and placed above the fastener so that the tip of the fastener contacts the guide body.

Then, the upper cloth is pressed while the pressing means is in a state of being laid down, and this holding device is installed in the sewing device by the attaching means.

Next, the sewing device is pressed by the pressing device, and the moving device is driven to move the holding device to form a straight stitch by the sewing machine.

[0019]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. 1 to 4 are views showing an embodiment of a fastener sewing machine according to the present invention.

FIG. 1 is a front view showing a holding device of a fastener sewing machine, in which 1 is a support plate, and a sewing needle (not shown) is inserted into the support plate 1 as shown in FIG. So as to have a longitudinal through hole 4 formed in the longitudinal direction so as to be provided with a mounting portion 1a which is attachable to and detachable from a sewing means described later.

G is a guide body fixed to the upper surface of the support plate 1, and this guide body G is fixed in parallel with the through hole 4 at an appropriate distance as shown in FIG. In this embodiment, two guide bodies G are provided.

Reference numeral 2 denotes a fastener holding means, which is U-shaped, has a holding portion 5 at its tip, and the other end is installed on the support plate 1 via a hinge 6 to hold it. The part 5 can be rotated up and down.

As shown in FIG. 2, the holding portion 5 of the fastener holding means 2 is provided with a groove portion 5a for locking the engaging portion Fa of the fastener F, and by inserting the fastener F from the lateral direction into the groove portion 5a. The fastener F can be held.

The holding portion 5 is fixed to the main body of the fastener holding means 2 by an elongated hole 5b extending in the guide body G direction and a screw 5c inserted into the elongated hole 5b. The size of the groove 5a can be adjusted according to the shape.

On the other hand, 3 is a pressing means, and this pressing means 3 is installed at one end via the support plate 1 and the hinge 7, and can be undulated and rotated on the upper surface of the support plate 1. As shown in FIG. 3, a tip portion 3a having an L-shaped cross section is provided. (FIG. 3 shows only the tip 3a)

Further, 3b is a lever portion formed up to the end of the support plate 1 so as to facilitate the up and down rotation of the pressing means 3. In this embodiment, two pressing means 3 are provided.

Next, the holding state of the sewn object by the holding device having the above configuration will be described. First, as shown in FIG. 2, the lower cloth W1 is placed on the upper surface of the support plate 1 so that the tip of the lower cloth W1 contacts the guide body G.

Then, the fastener holding means 2 holding the fastener F is laid down on the upper surface of the lower cloth W1, the lower cloth W1 is pressed by the fastener holding means 2, and the fastener F is placed on the upper surface of the lower cloth W1.

Next, as shown in FIG. 3, the upper cloth W2 is placed above the fastener holding means 2 (fastener F) so that the tip end portion thereof abuts on the guide body G.

Then, the pressing means 3 is turned down so that the top cloth W2 is pressed by the tip portion 3a. Through the series of operations described above, the lower cloth W1, the fastener F, and the upper cloth W2 can be properly sewn (see FIG. 6), and this work is performed by aligning the leading end with the guide body G. Since it is an easy work such as placing or inserting the fastener F into the groove portion 5a, it can be carried out quickly without requiring any special skill.

On the other hand, B shown in FIG. 4 is a view showing a sewing means of the fastener sewing machine. In FIG. 4, reference numeral 8 is a moving means installed below the sewing machine M, and this moving means 8 comprises a motor 9 and a belt 10 rotatably supported by the motor 9.

A moving body 15 is fixed to the upper surface of the belt 10 of the moving means, and is moved linearly by the moving means 8.

Reference numeral 12 is a mounting means, and the detailed description thereof will be omitted. The mounting means 12 enables detachable connection of the holding device A (mounting portion 1a) described above.

A pressing device 13 is provided on the moving body 15. The pressing device 13 is located below the sewing needle of the sewing machine M and is rotatably supported by the moving body 15 by the shaft pin P. A frame 11 and a cylinder 14 for rotating the pressing frame 11 are provided.

In the sewing means described above, the holding device A (see FIG. 1) is attached by the attaching means 12, and the holding device A is held by the holding device 13 so that the workpiece to be held by the holding device A is not displaced. The upper surface of A is pressed, and these are moved linearly as indicated by the arrow by the moving means 8 to perform fastener sewing.

The fastener sewing machine including the holding device A and the sewing means B described above quickly, easily and easily puts the fastener F and the upper and lower cloths W1 and W2 into the proper sewing position without the need for a sophisticated technique. In addition, the distance H (see Fig. 5) can be kept constant by the straight seam, which improves the sewing work efficiency and stabilizes the quality of the sewn product. Become.

If two holding devices A are prepared, the work to be sewn on the holding means A can be attached when the sewing means B is driven, so that the production efficiency can be further increased. Is possible.

Further, since it is not necessary to perform waste sewing, the driving time of the sewing machine can be halved, and the consumption amount of consumables of the sewing machine, such as sewing needles, sewing threads and sewing machine oil, can be halved compared to the conventional one. It is possible to reduce the production cost.

[0039]

[Effect of the device]

 As described above, the fastener sewing machine according to the present invention is provided with a holding device that brings the lower cloth, the fastener, and the upper cloth into the sewing position state, and a sewing means that forms a stitch by linearly moving the holding device. Since it is equipped with, it is possible to perform the positioning work of the sewn product quickly and easily without the need for a skilled technique and improve the work efficiency.

Further, since the seam to be formed can be made to be a straight line properly, it is possible to make the interval between the tooth portion of the fastener and the end portion of the fabric constant and to stabilize the quality of the sewn product.

Further, since it is not necessary to perform waste sewing, it is possible to halve the consumable parts of the sewing machine, such as the sewing needle, the sewing thread, and the sewing machine oil, and it is possible to reduce the production cost.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a holding device for a fastener sewing machine according to the present invention.

FIG. 2 is a partially cutaway perspective view showing an installation state of a support plate, a guide body, a fastener holding means and a lower cloth, and a fastener of the holding device shown in FIG.

FIG. 3 is a partially cutaway perspective view showing an installed state of an upper cloth on the holding device shown in FIG. 1 and an operation of a holding means.

FIG. 4 is an external perspective view showing a configuration state of sewing means of the fastener sewing machine according to the present invention.

FIG. 5 is a partially cutaway perspective view showing an upper cloth, a lower cloth, and a fastener sewn therebetween.

FIG. 6 is a partially cutaway explanatory view showing a sewing state of the fastener shown in FIG.

[Explanation of symbols]

 A holding device B sewing means F fastener G guide body W1 lower cloth W2 upper cloth 1 support body 2 fastener holding means 3 holding means 4 through hole 5 holding portion

Claims (1)

[Scope of utility model registration request] 1. A fastener sewing machine for sewing a fastener between a lower cloth and an upper cloth, comprising a holding device for holding the lower cloth, the upper cloth and the fastener in a sewing position state, and a sewing machine. Sewing means for detachably supporting the holding device and linearly moving it below the sewing needle, wherein the holding device includes a support plate having a longitudinal through hole through which the sewing needle of the sewing machine is inserted; A guide body that is provided near the through hole of the plate and contacts the tips of the lower cloth and the upper cloth to align the sewn portion of these cloths with the through hole, and holds the fastener teeth at the tip. A fastener holding means having a holding portion, the other end of which is rotatably and rotatably supported by a support plate, and the sewing portion of the fastener is located above the through hole through the lower cloth when in the lying state, and one end is supported. It is supported by a plate so that it can be turned up and down, and it is in a state of lying down. And a holding means for holding the tip of the upper cloth placed above the fastener by the tip portion, and the sewing means includes a mounting means for detachably supporting the holding device, and a covering member at the time of sewing. A pressing device for pressing the holding device from above so as to prevent the displacement of the sewn product, and a moving device for supporting the attaching device and the pressing device and linearly moving them under the sewing needle of the sewing machine are provided. A zipper sewing machine characterized by being constructed.