TWI517802B - The manufacturing method of zipper - Google Patents

Description

Zipper manufacturing method

The present invention relates to a method of manufacturing a slide fastener in which a continuous chain is inserted into a slider and cut into a specific length to form a slide fastener.

Conventionally, as a zipper used in sporting goods such as a backpack, a zipper is known in which a stopper is not provided at both ends of the zipper, and a heat-welded portion formed by heat treatment is formed at both ends. Prevent the slide off.

As a manufacturing apparatus of the prior zipper, there is known a device in which the gripper is moved while gripping the end portion of the chain, and the fastener elements of the chain are sequentially inserted into the inside of the plurality of sliders (for example, refer to Patent Document 1).

Further, there is known a method of manufacturing a slide fastener in which a space portion is formed at a predetermined interval in a continuous chain, and after a lower stopper portion and a slider are attached, an upper stopper portion is further attached and cut into a specific length. Zipper (for example, refer to Patent Document 2).

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open No. Hei 6-181806

Patent Document 2: Japanese Patent Laid-Open No. Hei 3-97407

In addition, in the above Patent Document 1, there is no description about the treatment of the end portion of the cut chain, and even if the both ends of the chain are thermally welded, the heat is due to heat. The welding causes the end portion to be deformed so that the fastener element cannot be inserted into the slider after the heat treatment. Therefore, the fastener element must be inserted into the slider and then the end portion is thermally welded. After the one end side of the chain is thermally welded, the orientation of the chain is reversed, and the other end side of the chain is thermally welded, so that production efficiency exists. Reduce the possibility.

Moreover, in the above-mentioned Patent Document 2, after the lower stopper portion, the slider, and the upper stopper portion are attached to the chain, the cutting is performed at the center of the space portion, so that the end portions of the slide fastener are thermally welded. The technique of the present invention without the need for a stop. Further, since it is necessary to make the space portion which cannot be used as the zipper, that is, the space portion is long, there is a possibility that the useless portion is increased and the product cost is increased.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a method for manufacturing a slide fastener which can efficiently manufacture a slide fastener which is formed at both ends in the longitudinal direction and which is formed by heat treatment.

The above object of the present invention is achieved by the following constitution.

(1) A method of manufacturing a zipper, comprising: a slit processing step of forming a slit at a predetermined interval along a length direction of a continuous chain; and a slider insertion step of inserting the slider into the slit And inserting a pair of left and right fastener element rows of the continuous chain into the sliding member; and cutting step of melting and cutting the front and rear positions of the slit of the continuous chain by heat, thereby setting the continuous chain to a zipper of a specific length And in the cutting step, the cut edge portions of the pair of left and right fastener tapes of the continuous chain are welded to the cut edge portions of the pair of left and right fastener element rows.

(2) The method of manufacturing a zipper according to (1), characterized in that the continuous chain comprises: a pair of left and right zipper tapes; and a pair of left and right zipper chain rows, which are respectively paired with a pair of left and right zipper tapes The tape is attached to the side edge portion, and the slit is formed by passing through a pair of left and right fastener tapes and a pair of left and right fastener element rows.

(3) The method of manufacturing a zipper according to (2), wherein the slit is formed to be substantially T Word shape.

(4) The method of manufacturing a zipper according to any one of (1) to (3) characterized in that in the step of inserting the slider, the side portion and the rear portion are formed by the slit of the continuous chain The step portion in which the side portions are displaced in opposite directions in the thickness direction of the continuous chain inserts the slider into the slit.

(5) The method of manufacturing a zipper according to (4), wherein the step portion is formed by pressing a continuous chain with a slider.

(6) The method for producing a slide fastener according to any one of (1) to (5), wherein the both ends in the longitudinal direction of the zipper that is melt-cut by heat are respectively formed as a slip-proof member for the slider. And the function of the fusion joint.

(7) The method of manufacturing a zipper according to any one of (1) to (6) characterized in that in the step of inserting the slider, the continuous chain is grasped by the holder and moved by the holder The zipper chain of the continuous chain is inserted into the slider.

(8) A method of manufacturing a zipper, comprising: a slit processing step of forming a slit at a predetermined interval along a length direction of a continuous chain; and a slider insertion step of inserting the slider into the slit And inserting a pair of left and right fastener element rows of the continuous chain into the sliding member; and cutting step, which melts and cuts the continuous chain along the slit by heat, thereby setting the continuous chain into a zipper of a specific length; In the cutting step, the cut edge portions of the pair of left and right fastener tapes of the continuous chain are welded to the cut edge portions of the pair of left and right fastener element rows.

A method of manufacturing a slide fastener according to the present invention, comprising: a slit processing step of forming a slit at a predetermined interval along a length direction of a continuous chain; a slider insertion step of inserting a slider into the slit, and a pair of left and right fastener element rows of the continuous chain are inserted through the sliding member; and a cutting step of melting and cutting the front and rear positions of the slit of the continuous chain by heat, thereby setting the continuous chain into a zipper of a specific length; In the cutting step, the cut edge portion of the pair of left and right fastener tapes of the continuous chain is welded to the cut edge portion of the pair of right and left fastener element rows, Therefore, it is possible to efficiently manufacture a slide fastener which is formed at both ends in the longitudinal direction by the heat treatment.

A method of manufacturing a slide fastener according to the present invention, comprising: a slit processing step of forming a slit at a predetermined interval along a length direction of a continuous chain; a slider insertion step of inserting a slider into the slit, and a pair of left and right fastener element rows of the continuous chain are inserted into the slider; and a cutting step of melting and cutting the continuous chain along the slit by heat, thereby setting the continuous chain to a zipper of a specific length; and in the cutting step In this case, the cut edge portions of the pair of left and right fastener tapes of the continuous chain are welded to the cut edge portions of the pair of left and right fastener element rows, so that the ends of the longitudinal direction can be efficiently produced by heat treatment. A zipper that forms a release prevention member.

10‧‧‧Continuous chain

10a‧‧‧ upstream side part (front side part)

10b‧‧‧ downstream side part (rear side part)

11‧‧‧ zipper

12‧‧‧ zipper tape

14‧‧‧Zipper chain

18‧‧‧ slit

18a‧‧‧ transverse

18b‧‧‧ vertical

19‧‧‧welding department

20‧‧‧Zipper manufacturing device

21‧‧‧1st Chain Accumulation Department

22‧‧‧Second Chain Accumulation

30‧‧‧Slit processing device

31‧‧‧feeding rolls

32‧‧‧guide roller

35‧‧‧Control device

36‧‧‧ Punch

40‧‧‧Sliding device

41‧‧‧feeding rolls

42‧‧‧guide roller

45‧‧‧1st slider holder

45a‧‧‧ Keep the recess

46‧‧‧2nd slider holder

46a‧‧‧ Keep the recess

47‧‧‧Clamps

50‧‧‧cutting device

51‧‧‧feeding rolls

52‧‧‧guide roller

55‧‧‧Control device

56‧‧‧Fuse blades

60‧‧‧Sliding parts

60A‧‧‧1st slider

60B‧‧‧2nd slide

61‧‧‧Ontology

62‧‧‧Upper wing

63‧‧‧lower wing

64‧‧‧Guide column

64a‧‧‧Wedge end

66‧‧‧Chain guide road

67‧‧‧Meshing port

68‧‧‧Import

69‧‧‧Flange

69a‧‧‧ cloth guide slot

S‧‧‧ step department

Fig. 1 is a schematic configuration diagram of a zipper manufacturing apparatus to which a zipper manufacturing method of the present invention is applied.

Fig. 2 is a perspective view showing a main part of the slit processing apparatus shown in Fig. 1.

Figure 3 is a bottom plan view of a continuous chain fed to a slit processing apparatus.

Figure 4 is a bottom plan view of a continuous chain formed with slits having a substantially T-shape.

Fig. 5 is a side view showing a state in which a first slider is supplied to a continuous chain.

Fig. 6 is a side view showing a state in which the downstream side portion of the continuous chain is pushed upward by the first slider and the step portion is formed before the slit.

Fig. 7 is a bottom view showing a state in which the downstream end portion of the upstream side portion of the continuous chain is gripped by the gripper in the state of Fig. 6.

Fig. 8 is a bottom view showing a state in which a pair of fastener element rows are inserted from the engagement opening of the first slider into the element guide path.

Fig. 9 is a bottom view showing a state in which a pair of fastener element rows are inserted into the first slider.

Fig. 10 is a side view showing a state in which a second slider is supplied to a continuous chain.

Figure 11 is a view showing that the second slider is pressed upward by the second slider to the downstream side portion of the continuous chain. A side view of the state in which the step portion is formed before.

Figure 12 is a bottom view of the state of Figure 11.

Fig. 13 is a bottom view showing a state in which a pair of fastener element rows are inserted into the second slider.

Fig. 14 is a bottom view showing a state in which the first and second sliders are attached between the slits of the continuous chain.

Fig. 15 is a perspective view showing the main part of the cutting device shown in Fig. 1.

Fig. 16 is a bottom view showing a state in which the continuous chain is melted and cut at a position before and after the slit by the cutting device.

Fig. 17 is a bottom view showing a state in which one slider is attached between slits of a continuous chain, according to a first modification of the present invention.

Fig. 18 is a bottom view showing a state in which the continuous chain shown in Fig. 17 is melted and cut at a position before and after the slit by the cutting device.

Fig. 19 is a bottom view showing a state in which the first and second sliders are attached between the slits of the continuous chain, according to a second modification of the present invention.

Fig. 20 is a perspective view showing a main part of a cutting device used in a second modification.

Fig. 21 is a bottom view showing a state in which a continuous chain is melted and cut along a slit by a cutting device.

Hereinafter, an embodiment of the method for producing a slide fastener of the present invention will be described in detail based on the drawings. In the following description, in the continuous chain and the zipper manufacturing apparatus, the upper side is the upper side with respect to the paper surface of FIG. 5, and the lower side is the lower side with respect to the paper surface of FIG. The drawing is set to the left side with respect to the paper surface of FIG. 5, the downstream side is set to the right side with respect to the paper surface of FIG. 5, the left side is set to the back side with respect to the paper surface of FIG. 5, and the so-called right side system is set with respect to FIG. The paper surface is near the front side. Also, the left and right direction is also referred to as the width direction. Moreover, the upper and lower directions of the continuous chain are also referred to as the thickness direction. Moreover, the direction upstream and downstream of the continuous chain is also referred to as the length direction. Also, the upstream direction of the continuous chain is also It is called the front direction, and the downstream direction is also called the back direction. In addition, the upper side of the slider is a front side with respect to the paper surface of FIG. 7, and the lower side is a back side with respect to the paper surface of FIG. 7, and the front side is a right side with respect to the paper surface of FIG. The rear side is set to the left side with respect to the paper surface of FIG. 7, and the left side is set to the upper side with respect to the paper surface of FIG. 7, and the right side is set to the lower side with respect to the paper surface of FIG.

As shown in FIG. 1, the zipper manufacturing apparatus 20 to which the zipper manufacturing method of the present invention is applied includes a slit processing device 30, a slider insertion device 40, and a cutting device 50 in the conveying direction of the continuous chain 10. . On the downstream side of each of the devices 30, 40, 50, feed rollers 31, 41, 51 and guide rollers 32, 42, 52 are disposed, respectively.

Further, between the slit processing device 30 and the slider insertion device 40, and between the slider insertion device 40 and the cutting device 50, the continuous chain 10 is loosened to absorb the devices 30, 40, and 50, respectively. The first chain storage unit 21 and the second chain storage unit 22 which are the difference in processing speed.

Here, the continuous chain 10 will be described. As shown in FIG. 3, the continuous chain 10 includes a pair of left and right fastener tapes 12, and a pair of right and left fastener element rows 14 which are respectively sewn along the opposite side edges of the pair of left and right fastener tapes 12. . The zipper chain tooth row 14 is a ring-shaped zipper chain tooth row. Further, in the present embodiment, the continuous chain 10 is supplied to the slide fastener manufacturing apparatus 20 so that the pair of left and right fastener element rows 14 are directed downward.

(slit processing step)

First, the continuous chain 10 supplied to the slit processing apparatus 30 is conveyed to the downstream side by the feed roller 31 as shown in FIG. Further, the transport length of the continuous chain 10 transported by the slit processing device 30 is accurately measured by, for example, an encoder (not shown).

Next, in the slit processing device 30, as shown in Figs. 2 and 4, a substantially T-shaped punch 36 is made downward based on a signal from the control device 35 every time the continuous chain 10 is transported to a specific length. Moving, the left and right fastener tapes 12 of the continuous chain 10 and the left and right fastener element rows 14 are penetrated in the vertical direction to form a substantially T-shaped slit 18 in the continuous chain 10. Therefore, in the continuous chain 10, a specific interval is formed along the length thereof. Slit 18 . Further, the continuous chain 10 in which the slits 18 are formed is conveyed to the first chain storage portion 21 by the feed roller 31.

The substantially T-shaped slit 18 divides the continuous chain 10 into a portion where the upstream side portion (front side portion) 10a and the downstream side portion (rear side portion) 10b meet, and includes a cross section extending in the width direction of the continuous chain 10. The portion 18a and the vertical portion 18b extending in the longitudinal direction of the continuous chain 10. Moreover, the vertical portion 18b of the slit 18 is formed toward the upstream side in the conveyance direction. Therefore, in the slider insertion step described below, when the first slider 60A is inserted into the slit 18, the tapered end portion 64a of the rear end of the guide post 64 of the first slider 60A can be made to enter the slit 18. The portion 18b, so that the guide post 64 can easily separate the left and right fastener element rows 14 (refer to Figs. 8 and 9).

(slider insertion step)

Next, the continuous chain 10 of the first chain storage portion 21 is supplied to the slider insertion device 40 by the feed roller 41. As shown in Figs. 5 to 14, the left and right fastener element rows 14 are inserted. First and second sliders 60A and 60B.

The first and second sliders 60A and 60B have the same structure as shown in Figs. 5 and 10, and include a main body 61 and a pull tab (not shown). The body 61 includes an upper wing 62, a lower wing 63, and a guide post 64 that connects the upper end of the upper wing 62 and the lower wing 63. Further, as shown in FIGS. 8 and 13, a Y-shaped sprocket guiding path 66 is formed between the upper blade 62 and the lower blade 63, and an engaging opening 67 is provided at one end of the sprocket guiding path 66. The left and right introduction ports 68 are provided at the other end of the element guide path 66. Further, a flange 69 extending toward the lower wing plate 63 is respectively disposed on the left and right side edges of the upper blade 62, and a zipper cloth for the continuous chain 10 is formed between the flange 69 and the lower blade 63. The tape guide groove 69a is inserted into the belt 12. In other words, the tape guide grooves 69a are connected to the element guide passages 66 and formed on the right and left sides of the body 61, respectively. Further, the first and second sliders 60A and 60B have the same structure as the slider 60 described below.

In the slider insertion device 40, a first slider holder 45 and a second slider holder 46 are provided along the conveying direction of the continuous chain 10. Holding recesses for holding the first and second sliders 60A, 60B are formed on the upper end faces of the first and second slider holders 45, 46, respectively. Parts 45a, 46a. Further, the first and second slider holders 45 and 46 are configured to receive the supply position (downward movement position) of the sliders 60A and 60B from a slider feeder (not shown). The fastener element row 14 is inserted between the insertion positions (upward movement positions) of the sliders 60A, 60B, and moves in the up and down direction.

Further, as shown in FIG. 5, the first slider holder 45 is placed at a supply position below the continuous chain 10, and the lower blade 63 faces upward and the engagement port 67 faces the upstream side to hold the first slider with the holding recess 45a. 60A.

Then, as shown in FIG. 6, the first slider holder 45 is moved upward to the insertion position, and the lower flap 63 pushes up the downstream side portion 10b of the continuous chain 10 so as to be before and after the slit 18. A step portion S is formed. Thereby, the upper and lower positions of the engaging opening 67 of the first slider 60A are the same as the upper and lower positions of the upstream side portion 10a of the continuous chain 10, so that the fastener element row 14 can be inserted into the element guide of the first slider 60A. Road 66.

Further, the step portion S is formed by disposing the slit 18 so as to extend in the thickness direction intersecting the longitudinal direction of the continuous chain 10, so that the continuous chain 10 is narrowed. The slit 18 is the upstream side portion 10a and the downstream side portion 10b of the boundary are displaced in mutually opposite directions in the thickness direction of the continuous chain 10.

At this time, as shown in FIG. 7, the left and right grippers 47 of the slider insertion device 40 advance toward the inner side in the width direction from the standby position indicated by the two-dot chain line, and respectively grip the upstream side portion 10a of the continuous chain 10. The left and right fastener tapes 12 on the downstream side end portion are moved to the downstream side. Thereby, as shown in FIG. 8, the first slider 60A is inserted into the slit 18, and the left and right fastener element rows 14 are inserted into the element guide path 66 from the engagement opening 67 of the first slider 60A. Thereafter, as shown in FIG. 9, the left and right fastener element rows 14 are separated left and right by the guide post 64. In addition, when the left and right fastener element rows 14 are separated, the left and right grippers 47 are moved toward the downstream side, and are slightly retracted outward in the width direction so as to expand the left and right fastener tapes 12.

Then, as shown in FIG. 10, the second slider holder 46 is provided below the continuous chain 10. The position is set such that the lower blade 63 faces upward and the introduction port 68 faces the upstream side, and the second slider 60B is held by the holding recess 46a.

Then, as shown in FIGS. 11 and 12, the second slider holder 46 is moved upward to the insertion position by moving the slit 18 close to the second slider holder 46 by the movement of the left and right grippers 47. Up to this, the lower flap 63 pushes the downstream side portion 10b of the continuous chain 10 upward, so that the step portion S is formed before and after the slit 18. Thereby, the upper and lower positions of the left and right introduction ports 68 of the second slider 60B are the same as the upper and lower positions of the upstream side portion 10a of the continuous chain 10, so that the fastener element rows 14 can be inserted into the chain of the second slider 60B. Tooth guiding path 66.

Then, by moving the left and right grippers 47 to the downstream side, as shown in FIG. 13, the second slider 60B is inserted into the slit 18, and the left and right fastener element rows 14 are driven from the second slider. The introduction port 68 of the left and right sides of 60B is inserted into the element guide path 66, and thereafter, the left and right fastener element rows 14 are engaged by the left and right flanges 69. Further, when the left and right fastener element rows 14 are inserted into the right and left introduction ports 68, the left and right holders 47 are moved toward the downstream side, and are narrowed to the inside in the width direction while narrowing the left and right fastener tapes 12 go ahead.

Then, as shown in FIG. 14, the continuous chain 10 to which the first and second sliders 60A and 60B are attached is conveyed to the second chain storage portion 22 by the feed roller 41. Further, the left and right grippers 47 are inserted into the first and second sliders 60A and 60B, and then returned to the downstream side of the upstream side portion 10a of the next continuous chain 10. The location of the department.

(cutting step)

Next, in the cutting device 50, as shown in FIGS. 15 and 16, when the continuous chain 10 is conveyed and the slit 18 reaches a specific position, the pair of the blowing blades 56 are moved downward based on the signal from the control device 55. Thereby, the position of the slit 18 of the continuous chain 10 is melted and cut by heat.

Thereby, a portion of the slit 18 is separated from the continuous chain 10, and the continuous chain 10 becomes a zipper 11 of a specific length. Further, a welded portion 19 formed by the fuse blade 56 is formed at each end portion of the zipper 11 in the longitudinal direction. The welded portion 19 is configured to form a zipper tape A plurality of 12 wires are welded to each other at the cut edge portion of the zipper tape 12. Thereby, the disorder of the line is not generated from the cut edge. Further, the welded portion 19 is configured to weld the cut edge portions of the left and right fastener element rows 14 to each other. Thereby, the left and right fastener element rows 14 are not separated at the cutting edge portion, and function as the retaining members of the first and second sliders 60A and 60B. Further, the welding portion 19 is configured to weld the cut edge portion of the left and right fastener tapes 12 to the cut edge portion of the left and right fastener element rows 14. Further, the slide fastener 11 is discharged to the product discharge portion by the feed roller 51.

As described above, the method for manufacturing a slide fastener according to the present embodiment includes a slit processing step of forming a slit 18 at a predetermined interval along the longitudinal direction of the continuous chain 10; and a slider insertion step, which will be 1 and the second sliders 60A, 60B are inserted into the slit 18, and the left and right fastener element rows 14 of the continuous chain 10 are inserted into the first and second sliders 60A, 60B; and the cutting step, which utilizes heat And the position of the slit 18 of the continuous chain 10 is melted and cut, thereby setting the continuous chain 10 to the zipper 11 of a specific length; and in the cutting step, the cutting edge of the left and right zipper tape 12 of the continuous chain 10 is cut. Since the portion is welded to the cut edge portion of the left and right fastener element rows 14 , the slide fastener 11 which is formed by the heat treatment at both ends in the longitudinal direction can be efficiently manufactured. Moreover, since it is not necessary to separately provide a retaining member, the manufacturing cost can be reduced.

Further, according to the method of manufacturing the slide fastener of the present embodiment, since the first and second sliders 60A and 60B are inserted into the slits 18 in the step portion S of the continuous chain 10, a pair of fastener element rows can be arranged. 14 is easily inserted into the first and second sliders 60A and 60B.

Further, according to the method for manufacturing a slide fastener according to the present embodiment, the step portion S is formed by pressing the continuous chain 10 upward by the first and second sliders 60A and 60B, so that it is not necessary to separately provide the step portion S. The mechanism can reduce manufacturing costs.

Further, according to the method for manufacturing a slide fastener according to the present embodiment, the slit 18 is formed to penetrate the left and right fastener tapes 12 of the continuous chain 10 and the left and right fastener element rows 14, so that the first and second sliders 60A can be formed. 60B enters the slit 18, so that the left and right fastener element rows 14 can be inserted into the sprocket guiding paths 66 of the first and second sliders 60A, 60B, and the left and right zippers can be attached. The tape 12 is inserted into the tape guide grooves 69a on the left and right of the first and second sliders 60A and 60B.

Further, as a first modification of the embodiment, as shown in FIG. 17, one slider 60 may be used instead of the first and second sliders 60A and 60B. In this case, the one slider 60 is inserted into the slit 18 of the continuous chain 10 by the first slider holder 45 similarly to the first slider 60A. Therefore, the second slider holder 46 can be stopped or removed from the slider insertion device 40.

Further, in the present modification, the slits 18 of the continuous chain 10 are melted and cut at the front and rear positions of the continuous chain 10 by one of the cutting devices 50, and as shown in Fig. 18, on the upstream side of the zipper 11 The welded portion 19 is formed, and the welded portion 19 is formed at the downstream end portions of the left and right sides of the zipper 11, respectively.

Further, as a second modification of the embodiment, as shown in Fig. 19, the lateral portion 18a of the slit 18 of the continuous chain 10 may be a linear slit having no width in the longitudinal direction of the tape.

Further, in the present modification, the continuous chain 10 is melted and cut by heat along the lateral portion 18a of the slit 18 by one of the fuse blades 56 of the cutting device 50 shown in Fig. 20, whereby Fig. 21 As shown in the drawing, the welded portion 19 formed by the fuse blade 56 is formed at both end portions in the longitudinal direction of the zipper 11.

It is to be noted that the present invention is not limited to the embodiments described above, and may be appropriately modified without departing from the spirit and scope of the invention.

For example, in the above embodiment, the slider is supplied from below the continuous chain, but the invention is not limited thereto, and may be supplied from above the continuous chain. In this case, the step of the continuous chain is formed by pushing the continuous chain downward by the slider.

10‧‧‧Continuous chain

10a‧‧‧ upstream side part (front side part)

10b‧‧‧ downstream side part (rear side part)

12‧‧‧ zipper tape

14‧‧‧Zipper chain

18‧‧‧ slit

60A‧‧‧1st slider

60B‧‧‧2nd slide

62‧‧‧Upper wing

67‧‧‧Meshing port

68‧‧‧Import

Claims (14)

A method of manufacturing a zipper, comprising: a slit processing step of forming a slit (18) at a specific interval along a length direction of a continuous chain (10); and a slider insertion step of the slider ( 60, 60A, 60B) inserted into the slit, and inserting a pair of left and right fastener element rows (14) of the continuous chain into the slider; and a cutting step of melting and cutting the continuous chain by heat a position of the slit before and after the slit, thereby forming the continuous chain as a zipper (11) of a specific length; and in the cutting step, cutting the edge of the pair of left and right fastener tapes (12) of the continuous chain The cutting edge portion of the pair of left and right fastener element rows is welded. The method of manufacturing a zipper according to claim 1, wherein the continuous chain (10) comprises: a pair of left and right fastener tapes (12); and a pair of left and right fastener element rows (14), which are respectively along the left and right sides The pair of zipper tapes are attached to the side edges of the tape, and the slits (18) are formed by penetrating the pair of left and right fastener tapes and the pair of left and right fastener elements. The method of manufacturing a zipper according to claim 2, wherein the slit (18) is formed in a substantially T shape. The method of manufacturing a zipper according to any one of claims 1 to 3, wherein in the step of inserting the slider, the front side portion is formed by the slit (18) of the continuous chain (10) 10a) A step portion (S) provided in a direction in which the rear side portion (10b) is displaced in opposite directions in the thickness direction of the continuous chain, and the sliders (60, 60A, 60B) are inserted into the slit. The method of manufacturing a zipper according to claim 4, wherein the step portion (S) is formed by pressing the continuous chain (10) with the sliders (60, 60A, 60B). The method for producing a zipper according to any one of claims 1 to 3, wherein both ends in the longitudinal direction of the zipper (11) which are melt-cut by heat are formed as the sliders (60, 60A, 60B), respectively. A welded portion (19) that functions as a release preventing member. The method of manufacturing a zipper according to any one of claims 1 to 3, wherein in the step of inserting the slider, the continuous chain (10) is gripped by a holder (47), and by the holder The zipper element rows (14) of the continuous chain are inserted into the sliders (60, 60A, 60B) by movement. A method of manufacturing a zipper, comprising: a slit processing step of forming a slit (18) at a specific interval along a length direction of a continuous chain (10); and a slider insertion step of the slider ( 60, 60A, 60B) inserted into the slit, and inserting a pair of left and right fastener element rows (14) of the continuous chain into the slider; and a cutting step, which is melted by heat along the slit Breaking the continuous chain to form the continuous chain as a zipper (11) of a specific length; and in the cutting step, cutting the edge of the pair of left and right fastener tapes (12) of the continuous chain and the left and right sides The cut edge portion of the pair of zipper fastener rows is welded. The method of manufacturing a zipper according to claim 8, wherein the continuous chain (10) comprises: a pair of left and right fastener tapes (12); and a pair of left and right fastener element rows (14), which are respectively along the left and right sides The pair of zipper tapes are attached to the side edges of the tape, and the slits (18) are formed by penetrating the pair of left and right fastener tapes and the pair of left and right fastener elements. The method of manufacturing a zipper according to claim 9, wherein the slit (18) is formed in a substantially T shape. The method of manufacturing a zipper according to any one of claims 8 to 10, wherein in the step of inserting the slider, the side portion of the continuous chain (10) with the slit (18) as a boundary is 10a) A step portion (S) provided in a direction in which the rear side portion (10b) is displaced in opposite directions in the thickness direction of the continuous chain, and the sliders (60, 60A, 60B) are inserted into the slit. The method of manufacturing a zipper according to claim 11, wherein the step portion (S) is formed by pressing the continuous chain (10) by the sliders (60, 60A, 60B). The method of manufacturing a zipper according to any one of claims 8 to 10, wherein both ends in the longitudinal direction of the zipper (11) which are melt-cut by heat are formed as the sliders (60, 60A, 60B), respectively. A welded portion (19) that functions as a release preventing member. The method of manufacturing a zipper according to any one of claims 8 to 10, wherein in the step of inserting the slider, the continuous chain (10) is gripped by a holder (47), and by the holder The zipper element rows (14) of the continuous chain are inserted into the sliders (60, 60A, 60B) by movement.