KR101360013B1 - Sewing machine for attaching elastic band - Google Patents

Abstract

The present invention relates to a sewing machine for attaching an elastic band which comprises an operation guide plate, a closed thread guide member, and/or a lower thread tangle preventing plate in order to change an elastic band encountering method of an existing sewing machine. The sewing machine is capable of not only performing the elastic band encountering work by applying a constant tensile force regardless of the type of clothing and the skills of a worker but also maximizing the working efficiency. The sewing machine also can fundamentally prevent the deviation of the thread during the operation, and has effect of eliminating the influence of obstacles around like wind from an electric fan.

Description

SEWING MACHINE FOR ATTACHING ELASTIC BAND}

The present invention relates to a sewing machine (sewing machine), and more particularly, to an elastic band attachment machine for attaching an elastic band (rubber file) to an upper end (waist dance) such as a pants or a skirt.

The elastic band is sewn and attached to the upper end (waist dance) of ordinary rubber pants or skirt.

This sewing work should be carried out with the waist and the elastic band of the fabric fitted on the presser foot of the sewing machine, and then the elastic band uniformly stretched back and forth.

Therefore, if a highly skilled sewing machine does not sew, the elastic state of the elastic band becomes uneven and there is a difference in shrinkage bending (wrinkling) after sealing, which causes the elastic fatigue to accelerate in the excessively extended part, Eventually, there is a problem that results in shortening the life of the elastic band, and further shorten the life of the garment to which the elastic band is attached.

In order to solve the above problems, a sewing machine for attaching an elastic band that provides a uniform tensile force and seals an elastic band has been developed and used as in Korean Patent Publication No. 1990-0007157 and FIG. 1.

Korean Patent Publication No. 1990-0007157 discloses an front idler roller, a take-out roller and a down-idle roller, and a take-out roller, which are positioned in approximately triangular shapes to provide tension to an Ovalok sewing machine, annular elastic band, and sewing material provided with a three-bone needle. It is fixed to a work plate that is combined with a long gear and a needle plate that allow the motor to rotate at the same speed as the sewing machine speed, and move the down idle roller up and down to adjust to the waist size of the garment to guide the movement of the elastic band and the sewing material. It is comprised by providing the guide protrusion to make.

1 also shows a sewing machine for attaching elastic bands to which the front, rear and down idle rollers 12, 14 and 16 are attached as the triangular tension providing means 10 disclosed in Korean Patent Publication No. 1990-0007157.

According to these, even the unskilled sewing company has the advantage that the elastic band sealing can be made in the state provided with the same tensile force to produce a garment having a uniform shrinkage bending.

However, the conventional elastic band attachment sewing machine disclosed in Korean Patent Laid-Open Publication No. 1990-0007157 and FIG. 1 is provided with front, rear, and downward idle rollers 12, 14, and 16 as the tension providing means 10, The elastic band folds the garment (3) attached to the end with the overlock and is guided to each protrusion of the fixing guide (22) and the moving guide (24), and is rotated at the same speed as the sewing machine by the take-out roller (34). It is designed to make, but when working the waist portion of the garment (3) has to hang on the tension providing means 10, there is a problem that it is difficult to work smoothly by only the rotational force of the extraction roller 34 according to the garment, the operator foot by hand (36) There is no choice but to supply clothes at a constant speed in front of the clothing, there is a problem that the efficiency of work is reduced because there is no means to support the hand of the worker.

In addition, in the conventional elastic band attaching machine, as shown in the enlarged view A of FIG. 1, the thread guide member 46 is opened downward in the 'c' shape to the thread distributor 40 so that the lower thread 54a is frequently detached. As shown in the enlarged view B of FIG. 1, the lower thread 54 of the upper thread 52 and the lower thread 54 supplied from the thread supply means 50 has a thread hanger 38 and a thread distributor 40 by a fan wind or the like. There is a problem that is often tangled between.

The present invention has been proposed to solve the problems of the prior art, provided with a work guide plate, a closed seal guide member and / or a lower thread entangled plate designed to change the elastic band sealing operation method of the conventional elastic band attachment sewing machine The object is to provide a sewing machine for attaching elastic bands.

In order to achieve the above object, the sewing machine for attaching the elastic band according to the present invention is provided with a presser foot and an upper draw roller at the same time on the sewing machine bed, the work table protruding from the sewing machine bed, the needle plate and the lower draw roller, respectively. A sewing machine main body, a thread supply means provided on one side of the sewing machine bed, a thread hook and a thread distributor respectively attached to one front side of the sewing machine main body to guide the thread supplied to the thread supply means and divide the upper thread and the lower thread. And a front support member installed at a predetermined distance from the workbench toward the presser foot; And a work guide plate detachably mounted between the rear end of the work table and the front support member, wherein the waist of the garment is caught between the upper and lower pull-out rollers and a hand of an operator placed on the work guide plate. It is characterized by.

The thread dispenser is characterized in that the thread guide member is closed by the extension guide member so that the thread passing through the thread tightening member is not separated from the thread guide member.

And, the thread hanger is formed in a 'b' shape to divide the upper thread and the lower thread,

Another feature of the elastic band attachment sewing machine according to the present invention is that a lower thread entanglement preventing plate made of a transparent material is further attached between the lower thread passing portion of the thread hook and the lower thread thread fastening member of the thread distributor.

And, the work guide plate is bent and wrapped around one side of the workbench and the left end is bent, the rear end of the work guide plate is bent in a 'c' shape to be fitted to the rear end of the workbench, of the work guide plate Elasticity according to the present invention that the front end is bent in a cross section so as to be detachable to the front support member by receiving the force in the vertical direction, the left end of the work guide plate is partially bent to be detachably wrapped around the left end of the workbench It is another feature of the sewing machine for attaching a band.

In addition, the work guide plate is another feature of the elastic band attachment sewing machine according to the invention that at least one protrusion guide line is formed in the longitudinal direction to guide the portion of the elastic band is to be sealed to the waist of the garment.

The protruding guide line is formed as one on the work guide plate, and protrudes to support the upper end where the garment and the elastic band meet in an inverted state, and the garment is sewn with two or more needles to surround the elastic band. Dividing into a sealing portion and a garment supporting portion is another feature of the elastic band attachment machine according to the present invention.

The protruding guide lines are spaced apart from each other on the work guide plate to form a first guide line and a second guide line from the right side, and the first guide line supports and guides the upper end of the garment. 2 guide line for supporting the lower end of the elastic band under the garment, and guides the elastic band for the elastic band according to the present invention to be a seal between the first guide line and the second guide line sewn with one or more needles. It is another feature of the sewing machine.

The present invention is provided with a work guide plate between the rear of the workbench and the front support member, it is easy to attach and detach and support the hand of the worker, unlike the conventional clothes between the take-off roller and the hand of the worker placed on the work guide plate It is possible to maximize the working efficiency by being able to work by giving a constant tensile force according to the rotational speed of the drawer roller regardless of the type of clothes by hanging the waist of the.

In addition, the work guide plate according to the present invention is one or more protruding guide line is formed in the longitudinal direction to guide each end of the garment and elastic band invisible to the operator can further increase the work efficiency, even inexperienced person elastic There is an effect that enabled the band sealing operation.

Furthermore, the present invention allows the seal guide member to be closed by the extension guide member, thereby essentially preventing the thread from being separated during operation, and by the lower thread entanglement preventing plate, it is possible to remove the influence of the surrounding obstacles during work such as a fan wind. It also works.

1 is a perspective view and an enlarged view of a conventional elastic band attachment machine.
Figure 2 is a perspective view and enlarged view showing the coupling relationship of the elastic band attachment sewing machine according to an embodiment of the present invention.
3 is a perspective view showing a state in which the configuration of the elastic band attachment sewing machine shown in FIG.
Figure 4 is a state diagram showing the appearance of sealing the elastic band with the elastic band attachment sewing machine shown in FIG.
FIG. 5 is a perspective view showing that the work guide plate according to the present invention is alternately fastened to the elastic band attachment sewing machine shown in FIG. 3.
Figure 6 is a state diagram showing the appearance of sealing the elastic band with the elastic band attachment machine shown in FIG.
7 is a perspective view showing a work guide plate mounted on the elastic band attachment machine of FIG.
8 is a perspective view showing a work guide plate mounted on the elastic band attachment machine of FIG.
9 is a cross-sectional view taken along line AA ′ of FIG. 7.
10 is a cross-sectional view taken along line BB ′ of FIG. 7.
FIG. 11 is a cross-sectional view taken along line CC ′ of FIG. 7.
12 is a cross-sectional view taken along the line DD ′ of FIG. 8.
FIG. 13 is a view illustrating the function of the protruding guide line in the cross-sectional view shown in FIG. 11.
FIG. 14 is a diagram illustrating the function of the first guide line and the second guide line in the cross-sectional view shown in FIG. 12.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The sewing machine for attaching the elastic band according to an embodiment of the present invention, as shown in Figure 2, basically a sewing machine bed (1), a working platform (2) protruding to the sewing machine bed, presser foot on the needle plate and the lower take-out roller, respectively The sewing machine main body 30 is provided so that the upper and lower rollers 36 and 34 can be moved up and down at the same time, the thread supply means 50 provided on one side of the sewing machine bed, and guides the thread supplied to the thread supply means. Comprising a thread hanger 38 and a thread dispenser 40 attached to the front one side of the sewing machine body 30 for dividing the upper thread 52 and the lower thread 54, the presser foot in front of the work table (2) An anterior support member 12 installed at a predetermined distance toward the 36; It further comprises a work guide plate (60, 80) detachably mounted between the rear end of the work table (2) and the front support member (12), as shown in Figure 4 or 6, the upper and lower withdrawal It is characteristic that the waist 3a of the garment 3 is caught between the roller 34 and the hand of the worker lying on the work guide plates 60 and 80.

Here, the front support member 12 is attached to the sewing machine at a position separated by a predetermined distance toward the presser foot 36 in front of the worktable 2, for example, a distance greater than the width of the worktable 2, the work guide plate Any form can be used as long as it is a means which can be detachably fixed to one side of (60, 80).

Therefore, the rear and lower idle rollers 14 and 16, which are the tension providing means 10, are removed from the conventional elastic band attaching machine shown in FIG. 1, and the front idle roller 12 can be recycled and used as the front support member. .

And, as shown in Figure 3 and 5, the work guide plate (60, 80), it is preferable that the front and rear ends are bent to surround the one side of the work table (2) is mounted.

By doing so, the work guide plates 60 and 80 are easily mounted by vertically pressing toward the front support member 12 after being first fitted to the rear of the work table 2, as illustrated in FIG. When working, it prevents the sewing material (cloth, 3) from being caught and does not damage it.

More specifically, in order to achieve the above object, as shown in Figs. 7 to 12, the rear end 65, 85 of the work guide plate 60, 80 is to be fitted to the rear of the work table (2). Bent into a shape, and the front ends 69 and 89 of the work guide plates 60 and 80 are bent in a cross section to be detachably attached to the front support member 12 by a vertical force. The left ends 67 and 87 of the plate may be partially bent to be detachably enclosing the left end of the work table (2).

And, the work guide plate (60, 80), as shown in Figs. 4 and 13 or 6 and 14, the portion where the elastic band (3b) is to be sealed to the waist (3a) of the garment (sewing material, 3). One or more protruding guide lines 61 (81. 83) may be formed in the longitudinal direction, and in FIGS. 2 to 4, 7, 9 to 11, and 13, the protruding guide line is the work guide. An example formed of one 61 on the plate 60 is shown, and in FIG. 5, 6, 8, 12, and 14, the first guide line 83 from the right side on the work guide plate 80 is shown. And an example formed of the second guide line 81.

When the protruding guide line is formed as one 61 on the work guide plate 60 as in the former example, the protruding guide line 61 is the garment 3 and the elastic band 3b, as shown in FIG. Is protruded to support in an inverted state, and the garment 3 wraps around the elastic band 3b and is sealed with two or more needles, for example, a three-needle needle 32, and an unsupported garment support portion. The working guide plate 60 is divided into 66.

Meanwhile, when the protruding guide line is formed of the first guide line 83 and the second guide line 81 on the work guide plate 80 as in the latter example, as shown in FIG. 14, the first guide line ( 83 supports and guides the upper end of the garment 3, and the second guide line 81 supports and guides the lower end of the elastic band 3c under the garment 3, and the first guide line. Between the 83 and the second guide line 81 is a sealing portion 84 sewn with one or more needles 31, the right side of the first guide line 83 is an elastic band support portion 82, the On the left side of the second guide line 81, the work guide plate 80 is divided into the garment support 86.

Since the protruding guide lines 61 and 81. 83 are formed to extend to the front of the presser foot, as illustrated in the accompanying drawings, the fixing guide 22 and the moving guide 24 of the conventional elastic band attaching machine shown in FIG. ) Is not necessary.

However, when used in a state where the fixing guide 22 and the movement guide 24 of the conventional elastic band attachment sewing machine shown in FIG. 1 are mounted, as shown in FIGS. 7 and 10, An incision hole 63 may be formed in a portion of the work guide plate 60 having the protrusion so that the protrusion of the movement guide 24 is inserted into the incision hole 63. Also in this case, the upper portion 61a of the protruding guide line 61 is preferably located above or adjacent to the protruding portion of the moving guide 24 and extends to the front of the presser foot, as shown in FIGS. 3 and 10.

As described above, by forming at least one protruding guide line 61 (81, 83. 83) in the longitudinal direction on the work guide plate (60, 80), the garment 3 and elastic band invisible to the operator in this configuration Since each end of (3b, 3c) is guided sufficiently in front of the presser foot, the work efficiency can be further increased, and even an inexperienced person has the advantage of enabling elastic band sealing work.

The work guide plate (60, 80) is preferably a thin metal plate (for example, iron plate), but the front end (69, 89) is elastic enough to be detachable while maintaining a circular deformation slightly in the vertical direction Any material can be produced.

In addition, reference numeral 62, which is not described, refers to the fixing guide 22 and the moving guide 24 when the fixing guide 22 and the moving guide 24 of the conventional elastic band attaching machine shown in FIG. 1 are used. The portion of the work guide plate inserted therebetween, and 68 and 88 illustrate the partial downward bending to the right end of the work guide plate.

On the other hand, the thread distributor 4, as shown in the enlarged view of Figure 2, the thread guide member so that the thread passing through the thread tightening member (called "join tank", 48) does not leave the thread guide member 46. It is desirable for the 46 to be closed by the extension guide member 47.

Since the extension guide member 47 is for closing the downward direction of the conventional thread guide member 46 fitted in the 'c' shape to the connector 44 fixed to the thread distributor iron piece 42, the plastic material or metal The material may be connected by soldering to the neighboring thread guide member or by closing the open area.

By doing so, in particular, in the conventional elastic band attachment machine, the problem that the lower thread 54 is released during operation can be fundamentally solved.

Finally, the thread hanger 38 is formed in a 'b' shape so as to divide the upper thread 52 and the lower thread 54, as in the prior art, the lower thread passage portion and the thread distributor of the thread hanger 38 Between the lower thread thread fastening member 48 of 40, as shown in Figure 2, further attached to the lower thread entanglement preventing plate 70 made of a transparent material, to remove the influence of the obstacles such as the wind of the fan during work It is preferable because it can be done.

1: sewing machine bed
2: worktable
3: clothing (sewing goods)
3a: garment waist
3b, 3c: elastic band
12: anterior support member
22: fixing guide
24: Moving guide
30: sewing machine body
31, 32: needle
34: drawing out roller
36: presser foot
38: thread hanger
40: thread dispenser
42: thread divider iron strip
44: connector
46: thread guide member
47: extension guide member
48: thread fastening member
50: seal supply means
60, 80: working guide plate
61, 81, 83: protrusion guideline
64, 84: sealing part
66, 86: garment support
82: elastic band support

Claims (7)

A sewing machine bed, a work table protruding from the sewing machine bed, a sewing machine main body provided so that the presser foot and the upper draw roller are simultaneously moved up and down on the needle plate and the lower draw roller, respectively, the thread supply means provided on one side of the sewing machine bed; In the sewing machine for elastic band attachment comprising a thread hanger and a thread distributor attached to the front one side of the sewing machine main body for guiding the thread supplied to the thread supply means and divided into upper thread and lower thread,
A front support member installed at a predetermined distance from the workbench toward the presser foot;
It further comprises a work guide plate detachably mounted between the rear of the workbench and the front support member,
Sewing machine for attaching the elastic band, characterized in that the waist of the garment is caught between the upper, lower withdrawal roller and the operator's hand placed on the work guide plate.
The method of claim 1,
The thread distributor is a sewing machine for attaching the elastic band, characterized in that the thread guide member is closed by the extension guide member so that the thread passing through the thread tightening member does not leave the thread guide member.
The method of claim 1,
The thread hanger is formed in a 'b' shape to divide the upper thread and the lower thread,
Sewing machine for elastic band attachment, characterized in that the lower thread tangling prevention plate made of a transparent material is further attached between the lower thread passing portion of the thread hook and the lower thread thread fastening member of the thread distributor.
The method according to any one of claims 1 to 3,
The work guide plate is bent and wrapped around one side of the workbench and the left end is bent,
The rear end of the work guide plate is bent in a 'c' shape to be fitted to the rear of the workbench,
The front end of the work guide plate is bent in a cross section so as to be detached to the front support member by the force in the vertical direction,
The left end of the work guide plate is wrapped around the left end of the workbench for elastic band attachment, characterized in that bent to be detachable.
5. The method of claim 4,
The work guide plate is a sewing machine for attaching elastic bands, characterized in that one or more protruding guide lines are formed in the longitudinal direction to guide the portion of the garment to be elastic band sealing.
The method of claim 5, wherein
The protruding guide line is formed as one on the work guide plate,
The upper end where the garment and the elastic band meets protrude to support in an inverted state,
Sewing machine for elastic band attachment characterized in that the garment wraps the elastic band and divided into a sealing portion and a garment support portion sewn with two or more needles.
The method of claim 5, wherein
The protruding guide line is spaced apart from each other on the work guide plate is formed of a first guide line and a second guide line from the right,
The first guide line supports and guides the upper end of the garment,
The second guide line supports and guides the lower end of the elastic band under the garment,
The sewing machine for attaching the elastic band, characterized in that between the first guide line and the second guide line is a sealing portion sewn with one or more needles.

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