METHOD FOR SEWING A ZIPPER LENGTH TO FABRIC, OBJECT, AND ZIPPER

Abstract

A support strap (3) and a fabric (101) are sewn along a second imaginary line (G2) that runs parallel to a first imaginary line (G1) established by direct contact between two or more dome members (4) and a push button foot (200). The support strap (3) and the fabric (101) are sewn along a fourth imaginary line (G4) that runs parallel to a third imaginary line (G3) established by direct contact between a plastic part (10) and a push button foot (200). The plastic part (10) has a guide surface (11) with which the pusher foot (200) comes into contact, so that the first and third imaginary lines (G1, G3) run collinearly to form a (number word) guide line (L1), and the second and fourth imaginary lines (G2, G4) run collinearly to form a (number word) planned sewing line (F2).

Description

[Technical field]

[0001] The present disclosure relates to a method for sewing a zipper longitudinal part to a fabric, in particular a method for sewing a zipper longitudinal part to a fabric using a sewing machine equipped with a presser foot. The present disclosure also relates to an article and a zipper. [General state of the art]

[0002] Patent document 1 discloses the transport of a zipper chain and fabric on a sewing machine while maintaining direct contact between a presser foot and the dome links adjacent to the presser foot, as well as the sewing of the zipper length and the fabric. Patent document 2 addresses a technical problem of interference between a presser foot of a sewing machine and a limiting part of a zipper (see paragraph 0002 therein). To solve this problem, patent document 2 discloses a special structure of a limiting part that helps to facilitate sewing the zipper length to fabric. Patent document 3 describes a limiting part that is narrowed in width to avoid interference with a presser foot (see its abstract). Zippers are disclosed in patent documents 4-6, which, however, do not investigate sewing a zipper length to fabric. [List of publications][Patent documents] [PTL 1] Japanese utility model application Disclosure No. 51-95459 [PTL 2] Japanese patent application Disclosure No. 2002-223820 [PTL 3] Japanese patent application Disclosure No. 2003-180413 [PTL 4] US Patent No. 2,438,615 [PTL 5] US Patent No. 2,546,649 [PTL 6] US Patent No. 2,600,905 [Summary][Technical Problem]

[0003] In cases where a limiting piece is made of plastic, it is common practice to design a limiting piece with a greater width to achieve sufficient adhesion to a carrier tape (e.g., its core cord). However, in this case, to prevent the limiting piece from colliding with a presser foot, manually repositioning the zipper tape would be necessary when sewing it to fabric. This would add considerable effort to the sewing process. Furthermore, there is a possibility of uneven seam quality due to varying skill levels among the workers involved (for example, differences in the degree of curvature or meandering of the seam might be observed in a section adjacent to the limiting piece).

[0004] In view of the above-described, non-limiting exemplary technical problem, the present inventors have identified a new technical problem, namely the reduction of the labor required for sewing a zipper longitudinal part, which has a plastic part to prevent a slider from falling off, to a fabric, and furthermore the facilitation of seam quality assurance regardless of the skills of the workers involved in the sewing process. [Solution to the problem]

[0005] A method according to one aspect of the present disclosure relates to a method for sewing a zipper longitudinal part to a fabric using a sewing machine equipped with a presser foot, wherein the zipper longitudinal part comprises a plurality of dome links attached individually or as a connected piece in a longitudinal direction of a support belt to an elongated side edge section of the support belt, and a plastic part arranged adjacent to a dome link positioned at the very end of the plurality of dome links in the longitudinal direction of the support belt to prevent a slider from falling off.The method comprises the following: straight-line transport of a zipper longitudinal section based on direct contact between the pusher foot and two or more dome links that are included in the plurality of dome links and positioned adjacent to the pusher foot, wherein a first imaginary line is established by the direct contact between the pusher foot and the two or more dome links; sewing the carrier tape to the fabric along a second imaginary line that runs parallel to the first imaginary line; straight-line transport of the zipper longitudinal section based on direct contact between the plastic part and the pusher foot, wherein a third imaginary line is established by the direct contact between the plastic part and the pusher foot; and sewing the carrier tape to the fabric along a fourth imaginary line that runs parallel to the third imaginary line.The straight-line transport of a zipper section based on direct contact between the presser foot and two or more dome links, and the straight-line transport of the zipper section based on direct contact between the plastic part and the presser foot, are performed in this order or in reverse order. The plastic part has a guide surface with which the presser foot comes into contact, such that the first and third imaginary lines are collinear to form a guide line, and the second and fourth imaginary lines are collinear to form a planned sewing line.

[0006] An article according to a further aspect of the present disclosure comprises a zipper sewn onto the article, the zipper comprising a first and a second zipper longitudinal part and a slider which moves in a front-to-back direction to couple or uncouple the first and second zipper longitudinal parts.The first longitudinal zipper section comprises a first support strap, a plurality of first dome links attached individually or as a single continuous piece to an elongated lateral edge section of the first support strap extending in the front-to-back direction, and a plastic part adjacent to a first dome link positioned at the very end of the plurality of first dome links in the front-to-back direction to prevent the slider from falling off, each first dome link included in the plurality of first dome links comprising a surface facing inward toward the first support strap and included in a first imaginary line extending in the front-to-back direction. The plastic part is a box portion of a separable limiting part.The box component comprises a box rod positioned adjacent to the coupling element at its very end and inserted into the slide, and a box body with one or more stop surfaces to which the box rod is coupled, thus preventing the slide from moving. The component has a seam that is parallel to the first imaginary line and also parallel to a guide surface of the plastic component, which is collinear with the first imaginary line.

[0007] A zipper according to another aspect of the present disclosure comprises a first and a second zipper longitudinal part and a slider that moves in a front-to-back direction to couple or uncouple the first and second zipper longitudinal parts.The first longitudinal zipper section comprises a first support strap, a plurality of first dome links attached individually or as a single continuous piece to an elongated lateral edge section of the first support strap extending in the front-to-back direction, and a plastic part adjacent to a first dome link positioned at the very end of the plurality of first dome links in the front-to-back direction to prevent the slider from falling off, each first dome link included in the plurality of first dome links comprising a surface facing inward of the first support strap and included in a first imaginary line extending in the front-to-back direction. The plastic part is a box portion of a separable limiting part.The box section comprises a box rod, which is arranged adjacent to the coupling member at its very end and inserted into the slide, and a box body with one or more stop surfaces to which the box rod is coupled and by which the slide is prevented from moving. The box section has a guide surface that is arranged collinearly with the first imaginary line.

[0008] In some embodiments, the plastic part is a box part of a separable limiting part, wherein the box part comprises a box rod positioned adjacent to the coupling member positioned at the very end and inserted into the slide, and a box body with one or more stop surfaces with which the box rod is coupled and by which the slide is prevented from moving, wherein the guide surface comprises one or more first guide areas on the box rod and at least one second guide area on the box body, and wherein the at least one second guide area is coplanar with the one or more first guide areas.

[0009] In some embodiments, the box bar has two flat surfaces arranged collinearly to the guide line and a concave surface arranged between these two flat surfaces.

[0010] In some embodiments, the length of the concave surface along the guide line is greater than the combined length of the two flat surfaces along the guide line.

[0011] In some embodiments, the box rod and an insertion rod inserted into a receiving space of the box body have opposite surfaces that are at least partially complementary in shape.

[0012] In some embodiments, the side edge section of the support belt comprises at least one core cord to which individual coupling members of the plurality of coupling members are attached and the box body is attached, wherein the box body has a first side surface and a first inner surface between which the core cord is arranged, wherein the first inner surface partially defines the receiving space for the insertion rod, wherein a minimum distance between a center of the core cord and the first side surface in a width direction of the support belt is smaller than a minimum distance between the center of the core cord and the first inner surface in the width direction of the support belt.

[0013] In some embodiments, 1.2<(T / S)<1.6 is satisfied, where S specifies the minimum distance between the center of the core cord and the first side surface, and T specifies the minimum distance between the center of the core cord and the first inner surface.

[0014] In some embodiments, the box body has a first side surface and a second side surface arranged opposite the first side surface, wherein the first side surface and the second side surface define a width of the box body, wherein (i) a center line located at the midpoint of the width of the box body defined between the first side surface and the second side surface is displaced away from the support strap to a position where the center line does not cross the box bar, and / or is positioned further away from the support strap than a center line of a zipper comprising the zipper longitudinal part as a first zipper longitudinal part;and / or (ii) the first side face is positioned a first distance from a centerline of a zipper that includes the zipper longitudinal as a first zipper longitudinal, the second side face is positioned a second distance from the centerline of the zipper, and the first distance is less than the second distance. In some cases where (ii) is satisfied, 1.1 < (D2 / D1) < 1.5 is satisfied, where D1 is the first distance and D2 is the second distance.

[0015] In some embodiments, the guide surface is incorporated into an inclined surface which, in its course, is inclined away from the belt surface of the support belt and outwards from the support belt.

[0016] In some embodiments, the guide surface lies essentially in the same plane as an inner wall surface of a flange of the upper or lower wing of the slide at its rear end section, when the slide is prevented from moving at its rearmost position by the box body.

[0017] In some embodiments, the box body is shaped in such a way that it does not come into contact with either of the left or right flanges of the upper or lower wings of the slide.

[0018] In some designs, the presser foot is positioned in the sewing machine so that its underside is in contact with a band surface of the carrying tape of the zipper longitudinal part.

[0019] In some embodiments, the zipper longitudinal part is sewn to a fabric in a state in which it is coupled to another zipper longitudinal part. [Advantageous effects of the invention]

[0020] According to one aspect of the present disclosure, it may be possible to reduce the workload when sewing a zipper longitudinal part with a plastic part to prevent the slider from falling onto a fabric, and furthermore, seam quality assurance is made possible regardless of the skills of the workers involved in the sewing process. [Brief description of the drawings] Fig. Figure 1 is a partial schematic top view of the inside of an object (e.g., a garment) according to one aspect of the present disclosure, wherein a zipper is sewn onto an open area of ​​the object and can be opened and closed. Fig. Arrow 1 indicates the front, arrow 2 indicates the back, arrow 3 indicates the left, and arrow 4 indicates the right. Guide lines L1 and L2 are positioned on the left and right sides of the zipper's center line CL. Guide line L1 does not cross the boundary piece, while guide line L2 does. Fig. Figure 2 is a schematic front view of a slide. Fig. Figure 3 is a schematic cross-sectional view of the slide along a dashed line III-III in Fig. 2. Fig. Figure 4 is a schematic side view of a right-hand zipper longitudinal section. Fig. Figure 5 is a schematic cross-sectional view of the zipper along a dashed line VV in Fig. 1. Fig. Figure 6 is a schematic cross-sectional view of the zipper along a dashed line VI-VI in Fig. 5. Fig. Figure 7 is a schematic diagram illustrating a process in which an insertion rod is inserted via a slide into a receiving space of a box body of a box part. Fig. Figure 8 is a schematic view illustrating that a sewing machine works to intermittently transport a fabric and a zipper length in one transport direction, with both being sewn together using sewing machine thread (top and bottom threads). Fig. Figure 9 is a schematic sketch showing a positional relationship between a push button foot, dome elements and a box part. Fig. Figure 10 is a schematic diagram illustrating how a zipper length and a fabric are sewn together based on the operation of the sewing machine. Fig. Figure 11 is a schematic diagram illustrating how the zipper length and the fabric are sewn together based on the operation of the sewing machine. Fig. Figure 12 is a schematic diagram illustrating how the zipper length and the fabric are sewn together based on the operation of the sewing machine. Fig. Figure 13 is a schematic diagram illustrating how a left zipper section, detached from a right zipper section, is sewn onto a fabric. Fig. Figure 14 is a schematic diagram illustrating how a right zipper longitudinal section is sewn to a fabric in a state where it is decoupled from a left zipper longitudinal section. Fig. Figure 15 is a schematic diagram illustrating how a left and a right zipper length are sewn to a fabric in a single sewing operation using the same sewing machine. Fig. Figure 16 is a schematic diagram illustrating one variant of a boundary part. Fig. Figure 17 is a schematic sketch illustrating a variant of a dome element. [Description of the embodiments]

[0021] The following section explains various embodiments and features with reference to the drawings. A person skilled in the art would be able to combine the respective embodiments and / or features without requiring excessive description and would recognize the synergistic effects of such combinations. Overlapping descriptions among the embodiments are generally omitted. The referenced drawings primarily serve to describe the inventions and have been simplified for ease of drawing. The respective features are to be understood as universal features that apply not only to the method, the object, and the zipper as disclosed herein, but also to various other methods, objects, and zippers not disclosed in this description.

[0022] In this description, the front-back direction corresponds to the direction in which a slider moves to open and close a zipper, and to the direction in which a zipper (alternatively, a zipper segment or a support strip) is elongated. The left-right direction is perpendicular to the front-back direction and corresponds to the width of a zipper (alternatively, a zipper segment or a support strip). The up-down direction is perpendicular to both the front-back and left-right directions and corresponds to the thickness direction of a support strip. When the zipper segment is mounted on a sewing machine, the front-back direction typically corresponds to the feed direction of the zipper segment, and the up-down direction corresponds to a vertical direction (a direction of gravity), but this is not the only possible interpretation.

[0023] As in Fig. As shown in Figure 1, the object 100 comprises a fabric 101, a fabric 102, and a zipper 1; and an opening between the fabrics 101 and 102 can be closed by means of the zipper 1. Specifically, the left and right zipper sections 2, 5 of the zipper 1 are sewn to the fabrics 101, 102. When the slider 9 moves backward, the left and right zipper sections 2, 5 are uncoupled to form an opening between the fabrics 101 and 102. When the slider 9 moves forward, the left and right zipper sections 2, 5 are coupled to close the opening between the fabrics 101 and 102. The fabrics 101, 102 can, for example, form halves of a front panel of an object such as a jacket, a jacket, or a jacket. These could be, for example, a jacket, a hooded jacket, or the like, but are not limited to this. Fabrics 101 and 102 can be different sections of the same fabric or separate fabrics.The left and right zipper longitudinal parts 2, 5 of the zipper 1 are completely separable from each other, but are not limited to this.

[0024] The zipper 1 has a pair of left and right zipper longitudinal sections 2, 5 and a slider 9 for coupling and uncoupling the longitudinal sections 2, 5. Each zipper longitudinal section 2, 5 has a support strap 3, 6; a plurality of coupling links 4, 7, which are attached individually or as a single continuous piece to an elongated side edge section of the first support strap 3, 6; and a plastic part 8a, 8b, which is arranged adjacent to a coupling link 4, 7 that is positioned at the very end of the plurality of first coupling links 4, 7 and which prevents the slider 9 from falling off the zipper longitudinal section 2, 5. The support strap 3, 6 is a woven or knitted fabric or a mixture thereof. The coupling links 4, 7 are made of plastic or metal. The coupling links 4, 7 are in Fig. 1 as separate individual islands in the longitudinal direction of the zipper longitudinal part 2, 5, but are not limited to this, and they can be provided as a continuous piece, with each link corresponding to a respective helical unit of a helical monofilament in which engagement heads are formed at a given distance (see Fig. 17). In Fig. In 1, plastic part 8a is a box part of a separable limiting part 8, and plastic part 8b is, but is not limited to, an insertion rod of the separable limiting part 8. The separable limiting part 8 is used to completely separate the two left and right zipper longitudinal parts 2, 5 from each other and indicates that the box part and the insertion rod are separable, with plastic part 8a being provided as a box part on the zipper longitudinal part 2 of one of the two longitudinal parts and plastic part 8b being provided as the insertion rod on the zipper longitudinal part 5 of the other longitudinal part. Such a limiting part 8 can be referred to as a separable insertion insert or separable part.As a further example, an embodiment is provided in which the plastic parts 8a, 8b are provided as an integrated part of a boundary part 8' which is produced in a single step by injection molding (see . Fig. 16) In this case, it can be designed as an integrated box in which the plastic part 8a and the plastic part 8b are not visibly distinguishable. Such a limiting part 8' is a limiting part used in articles where the two left and right zipper longitudinal parts 2, 5 are not completely separated from each other, and is neither the separable insertion part described above nor a separable part.

[0025] Typically, the support belt 3, 6 comprises a warp-knitted structure and is provided with a core cord at a lateral edge section of the support belt 3, 6. The arrangement of the core cord at the lateral edge section of the support belt 3, 6 allows for improved adhesion of the coupling element 4, 7 to the support belt 3, 6, thus preventing the coupling element 4, 7 from falling off the support belt 3, 6. The core cord can be a section in which cores are enclosed in a hollow fabric with a warp-knitted structure, but is not limited to this. Note that in a case where a Fig. 17 shown helical monofilament is used as dome members 4, 7, a core cord together with the dome member 4, 7 can be provided on a side edge section of the support belt 3, 6, while the core cord is inserted through the interior of the helical monofilament.

[0026] The following is a description with reference to Fig. 1 and Fig. 10. With respect to the right zipper longitudinal part 2, a first imaginary line G1 (see Fig. 10) is based on direct contact between two or more dome elements 4 and a push button foot 200. A third imaginary line G3 (see Fig. 10) is caused by direct contact between the plastic part 8a and the push button base 200. The first and third imaginary lines G1, G3 extend collinearly to form a (common) guide line L1 (see Fig. 1 and Fig. 10). Note that the support belt 3 and the fabric 101 are aligned along a second imaginary line G2 (see Fig. 10) would be sewn parallel to the first imaginary line G1. The support strap 3 and the fabric 101 would be sewn along a fourth imaginary line G4 (see Fig. 10) sewn, which runs parallel to the third imaginary line G3. The second and fourth imaginary lines G2, G4 extend collinearly to form a (common) planned sewing line F2 (see Fig. 10), and after the sewing process, a seam F1 is formed on the same line as the planned sewing line F2 (see Fig. 1 and Fig. 10).

[0027] In the present embodiment, the plastic part 8a has a guide surface 11 with which the push-button foot 200 comes into contact, such that the first and third imaginary lines G1, G3 run collinearly to form a (common) guide line L1, and the second and fourth imaginary lines G2, G4 run collinearly to form a (common) planned sewing line F2. Accordingly, the effort required for sewing the zipper's longitudinal section to the plastic part to prevent the slider from falling onto the fabric can be reduced, and furthermore, quality assurance of the seam can be ensured regardless of the skills of the workers involved in the sewing process.With regard to sewing, there is no restriction as to whether the pusher foot 200 may first be positioned adjacent to the dome members 4 to form the first imaginary line G1, and subsequently come into contact with the plastic part 8a to form the third imaginary line G3, or vice versa.

[0028] The same feature would be applicable to the left zipper longitudinal section 5, which is decoupled from the right zipper longitudinal section 2. A fifth imaginary line (not shown) is established by direct contact between two or more dome elements 7 and the push-button foot 200. A seventh imaginary line (not shown) is established by direct contact between the plastic part 8b and the push-button foot 200. The fifth and seventh imaginary lines extend collinearly to form a (common) guide line L2 (see Fig. 1 and Fig. 10) Note that the support strap 6 and the fabric 102 would be sewn along a sixth imaginary line (not shown) that runs parallel to the fifth imaginary line. The support strap 6 and the fabric 102 would be sewn along an eighth imaginary line (not shown) that runs parallel to the seventh imaginary line (not shown). The sixth and eighth imaginary lines extend collinearly to form a (common) planned sewing line, and after the sewing process, a seam is formed on the same line as the planned sewing line.

[0029] It is understandable that the first imaginary line G1 lies on the same line as the side surfaces 44 of the dome members 4 when the zipper is viewed from above (see Fig. 1) The exact position of the first imaginary line G1 may vary slightly depending on the angle of inclination of the side surface 44 of the dome member 4, the shape or angle of inclination of a side surface of the push-button base 200 that faces and contacts the dome member 4, and the like; however, this does not contradict the feature described above. Typically, the side surface 44 of the dome member 4 has a surface or partial surface facing inwards towards the support band 3, and the surfaces are arranged on the one (common) first imaginary line G1 extending in the front-to-back direction. The surfaces or partial surfaces of the respective support bands 3 included in the first imaginary line G1 may be located at the same level as a placement surface (e.g., a top surface) of the support band 3 on which the push-button base 200 is placed.Note that the first imaginary line G1 also runs parallel to the center line CL of zipper 1 and the longitudinal direction of zipper segment 2. The center line CL is a line that runs in the middle in the width direction of the coupled left and right zipper segments 2, 5 of the pair left and right zipper segments 2, 5.

[0030] Each dome member 4 extends outwards from the support belt 3 transversely across the side edge section of the support belt 3 opposite the support belt 6 (which can be referred to as the side edge). Each dome member 4 has a side surface 44 that faces inwards towards the support belt 3, and these surfaces are included in the first imaginary line G1, which extends in the front-to-back direction. A number of side surfaces 44 of the dome members 4 are arranged on the same line. Likewise, each dome member 7 extends outwards from the support belt 6 transversely across the side edge section of the support belt 6 opposite the support belt 3 (which can be referred to as the side edge). Each dome member 7 has a side surface 74 that faces inwards towards the support belt 6, and a number of side surfaces 74 of the dome members 7 are arranged on the same line.

[0031] The coupling element 4, 7 can be a plastic part with a narrowed shape and comprises a base section 41, 71 attached to the support strap 3, 6 (especially to its core cord), a neck 42, 72, and an engagement head 43, 73. However, the shape is not limited to the one described in Fig. The shape shown in Figure 1 is not limited to this; it could, for example, also be a V-shape. The width direction of the dome element 4, 7 corresponds to the length direction of the zipper longitudinal section 2, 5. The neck 42, 72 in the dome element 4, 7 has its smallest width. The base section 41, 71 is located within the tape surface of the support band 3, 6. The neck 42, 72 and the engagement head 43, 73 are located outside the tape surface of the support band 3, 6. The tape surface of the support band 3, 6 can be a top or a bottom surface, which serves to define the thickness of the support band 3, 6.

[0032] On both sides of the neck 42, 72 of the dome member 4, 7, projections can be formed extending from the base section 41, 71. Accordingly, the end face of the engagement head 43, 73 can be provided with a groove that extends in the longitudinal direction of the zipper's longitudinal section 2, 5. The projections of the dome members of the engagement partners are received in the groove, thereby restricting upward and downward movement of the left and right dome members 4, 7.

[0033] Fig. 2 and Fig. Figure 3 shows a non-restrictive example slider 9. The slider 9 moves along the centerline CL of the zipper 1. Typically, the slider 9 comprises an upper wing 91, a lower wing 92, and a connecting column 93 that joins the upper and lower wings 91 and 92 at their front end sections, thus defining a Y-shaped link passage. The link passage has a rear opening M1 for coupled links, in which the coupling links 4 and 7 alternately engage, and two front openings M2 and M3, located on either side of the connecting column 93, through which the coupling links 4 and 7, respectively, pass.The slide 9 can have upper flanges 94, 95 projecting downwards from the left and right side edge sections of the upper wing 91, and / or lower flanges 96, 97 projecting upwards from the left and right side edge sections of the lower wing 92, thereby restricting the coupling members 4, 7 from moving in the left-right direction within the Y-shaped opening. The upper and lower flanges 95, 97 on the right side of the slide 9 define a slot into which the support strap 3 is inserted. The upper and lower flanges 94, 96 on the left side of the slide 9 define a slot into which the support strap 6 is inserted. The slide 9 can optionally include a pull-piece attachment section 98 and a pull piece 99 attached thereto.

[0034] Here too, the plastic part 8a (e.g., a box part 10 described below) has the guide surface 11, which is arranged collinearly with the guide line L1 described above. When the zipper longitudinal part 2 is sewn to the fabric 101 with the sewing machine, the presser foot can accordingly switch smoothly from a state of direct contact with the coupling elements 4 to a state of direct contact with the guide surface 11 of the plastic part 8a, and vice versa. This reduces the workload for sewing and furthermore enables quality assurance of the seam regardless of the skills of the workers involved in the sewing process.In particular, not only is the stress on the plastic part 8a and the presser foot avoided, but the zipper longitudinal section 2 is also correctly aligned with the presser foot due to the direct contact between the presser foot and the guide surface 11 of the plastic part 8a. This results in the seam being formed in a straight line across both sections adjacent to the coupling elements 4 and the plastic part 8a. Training and material costs, or similar expenses, that might be required to improve the skills of the workers involved in the sewing process would be reduced. As a precaution, the alignment of the zipper longitudinal section 2 relative to the presser foot does not change even when the plastic part 8a begins to enter the section R200 adjacent to the presser foot, and vice versa.Furthermore, the guide surface 11 can comprise a flat or smooth surface that extends collinearly with the guide line L1.

[0035] The feature described above can be described as follows. That is, the guide surface 11 of the plastic part 8a provides an extension line that lies on an extension line of the first imaginary line G1 described above. The seam F1 is formed parallel to the extension line based on the contact between the guide surface 11 of the plastic part 8a and the push button foot.

[0036] If a zipper length is conventionally sewn to a fabric in such a way that a width W3a (see Fig. 1) If the width of the support strap exposed on the outside of an object is narrower (e.g., the exposed width W3a of the support strap lies in a range between 0 mm and 1.5 mm), then the plastic part 8a would be an obstacle, making it difficult to sew the zipper longitudinal part 2. Even in such a case, the seam would be formed in a straight line according to the feature described above. Note that in cases where individual plastic coupling elements 4 are provided, the side surfaces 44 of the respective coupling elements 4 and the guide surface 11 of the plastic part 8a are arranged on the same line (as in Fig. (1 shown), which also allows for a slimmer appearance of the zipper 1. In conjunction with the straightness of the seam F1 on the object 100, to which the zipper 1 is sewn, a much more elegant (neat) appearance could be achieved.

[0037] In some embodiments, the guide surface 11 is incorporated into an inclined surface which, in its course away from the belt surface of the support belt 3, is inclined upwards and outwards from the support belt 3. This inclined surface can form a line perpendicular to the belt surface of the support belt 3, for example at an angle of 3° or less (see angle θ in Fig. 5) Cross. This can reduce resistance to the transport of the zipper longitudinal section 2 caused by contact between the presser foot and the guide surface 11. Note that the inclined surface may comprise a first guide area and a second guide area, which are described below.

[0038] The following is a further description, mainly referring to Fig. 4, Fig. 5, Fig. 6 to Fig. 7. The plastic part 8a can be a box part 10 of the separable limiting part 8, and the plastic part 8b can be an insertion rod 50 of the separable limiting part 8. The box part 10 comprises a box rod 30, which is positioned adjacent to the coupling member 4 at the very end of the arrangement of the many coupling members 4 and inserted into the slide 9, as well as a box body 20 with one or more stop surfaces 16, 17 to which the box rod 30 is coupled and by which the slide 9 is prevented from moving. The thickness of the box rod 30 can be equal to or less than, for example, approximately half the thickness of the box body 20. The box body 20 is shaped such that it does not come into contact with the upper wing 91, the lower wing 92, and either of the left or right flanges of the slide 9, as will be evident from the following descriptions.

[0039] The box body 20 has a first side surface 21, which is collinear with the guide line L1 (and / or the first imaginary line G1) described above, and a second side surface 22, which is oriented opposite to the first side surface 21, with these together defining a width W20 of the box body 20. Note that the first side surface 21 is a surface that is collinear with the guide line L1 (and / or the first imaginary line G1) described above and coincides with or encompasses the guide surface 11 described above. The first side surface 21 is a flat or smooth surface and has no projection to the right that intersects the guide line L1.

[0040] In some cases, the width of the box body 20 is set asymmetrically with respect to the center line CL of the zipper 1. In this respect, the center line C1, which is positioned at the midpoint of the width of the box body 20 defined by the first and second side faces 21 and 22, can be displaced away from the support strap 3 to a position where the center line C1 does not cross the box bar 30, and / or be positioned further away from the support strap 3 than the center line CL of the zipper 1. Additionally or alternatively, the first side face 21 can be positioned a first distance D1 away from the center line CL of the zipper, and the second side face 22 can be positioned a second distance D2 away from the center line CL of the zipper, wherein the first distance D1 is smaller than the second distance D2 and preferably satisfies 1.1 < (D2 / D1) < 1.5.The position of the guide surface 11 in the box body 20 can be optimized by fulfilling one or all of the conditions described above. Additionally or alternatively, a desired mechanical strength of the box body 20 is ensured.

[0041] The box body 20 is shaped to accommodate the insertion rod 50 and typically comprises an upper plate 25, a lower plate 26, and a connecting section 27 that joins the upper plate 25 and the lower plate 26 together, as shown in Fig. 5 shown. The upper plate 25 has a stop surface 16 for stopping the slide 9, and the lower plate 26 has a stop surface 17 for stopping the slide 9 (see Fig. 4) The upper plate 25 has a flange 28 that projects downwards from an end section of the upper plate 25 located away from the connecting section 27. The lower plate 26 has a flange 29 that projects upwards from an end section of the lower plate 26 located away from the connecting section 27. The upper plate 25, the lower plate 26, the connecting section 27, and the flanges 28 and 29 define the receiving space for the insertion rod 50. Note that a slot is formed between the upper and lower flanges 28 and 29, which allows the insertion of the support strap 6 to which the insertion rod 50 adheres.

[0042] The box body 20 comprises a first inner surface 23 and a second inner surface 24, each partially defining the receiving space for the insertion rod 50. The core cord 3c is arranged between the first inner surface 23 and the first side surface 21. In the lateral direction of the support belt 3, the minimum distance S between the center of the core cord 3c and the first side surface 21 is smaller than the minimum distance T between the center of the core cord 3c and the first inner surface 23 and preferably satisfies 1.2 < (T / S) < 1.6. This would ensure sufficient adhesion of the box body 20 to the core cord 3c.

[0043] The first inner surface 23 extends along the center line CL of the zipper 1. The second inner surface 24 extends along the guide line L2 described above. The second side surface 22 is positioned further outward from the support tape 3 than the guide line L2. This ensures a suitable dimension for the insertion rod 50 and the required mechanical strength of the box body 20. Note that, because the second side surface 22 is positioned further from the center line CL than the guide line L2 (in other words, because the guide line L2 crosses the box body 20), the pusher foot may collide with a left section of the box body 20. This problem may be resolved by improving the method of sewing the left zipper longitudinal section 5 to the fabric 102 (see, for example, Figure 1). Fig. 13) Alternatively, this can possibly be achieved by making the insertion rod 50 and the flange 29 thinner, so that the second side surface 22 is collinear with the guide line L2. In this case, a reinforcing section can be formed on the side of the second inner surface 24 of the flange 29 (on the side of the receiving space) to ensure the required mechanical strength of the box body 20.

[0044] The flange 28, 29 can have an elongated projection (see figure 29a in Fig. 6), which has a width equal to the distance between the second inner surface 24 and the second side surface 22, and a stop wall (see paragraph 29b in Fig. 6) which is located behind the elongated projection to prevent the insertion rod 50 from moving backwards. The insertion rod 50 is inserted into the receiving space between the elongated projection of the flange 28, 29 and the connecting section 27. Dust that has entered the receiving space described above can be discharged via a space between the stop wall of the flange 28, 29 and the connecting section 27.

[0045] The box bar 30 has a first side surface 31 on the same side as the first side surface 21 of the box body 20, and a second side surface 32 on the same side as the second side surface 22 of the box body 20. The first side surface 31 comprises planar surfaces 31a, 31c, which extend along the guide line L1 described above and are arranged collinearly with the guide line L1. It is, of course, possible for the entire first side surface 31 to extend along the same line as the guide line L1 described above. A concave surface 31b is formed between the planar surfaces 31a, 31c described above, which allows the push button foot to maintain a contact state corresponding to the previous contact state with the side surfaces 44 of the coupling members 4.Advantageously, the length of the concave surface 31b along the guide line L1 is greater than the total length of the flat surfaces 31a, 31c along the guide line L1, thus preventing a sudden change in contact resistance. Typically, the flat surface 31a has a length that is shorter than the length of the side surface 44 of a coupling element 4 along the guide line L1.

[0046] When the first side surface 21 of the box body 20 enters the section R200 adjacent to the presser foot 200, the contact resistance between the presser foot 200 and the zipper longitudinal part 2 (contact resistance between the presser foot 200 and the coupling element 4 + contact resistance between the presser foot 200 and the box part 10) would increase proportionally to the length of the first side surface 21. This can, however, serve as a tactile signal to the workers performing the sewing that the end position of the sewing process is nearing its conclusion.

[0047] The second side surface 32 comprises a convex surface 32a, which intersects the center line CL of the zipper 1, and a concave surface 32b, which is set back from the center line CL of the zipper 1. The side surface of the insertion rod 50 opposite the second side surface 32 of the box rod 30 is complementary in shape, such that it has a concave surface 51a and a convex surface 51b, which allows sufficient interlocking of the box rod 30 and the insertion rod 50 and, for example, prevents the insertion rod 50 from moving forward or backward relative to the box rod 30. Thus, the opposing surfaces of the insertion rod 50 and the box rod 30 are advantageously at least partially complementary in shape.

[0048] In cases where the box part 10 (naturally the box rod 30) is made of plastic, the box rod 30 would have a complex or precise shape, as described above. In some cases, the box body 20 and the box rod 30 are produced in a single injection molding operation and / or are joined as a single piece, so that they cannot be separated non-destructively. Preferably, only one gate is formed on the surface of the box part 10. This single gate indicates that the box body 20 and the box rod 30 were formed in the same mold chamber at the time of injection molding. The box body 20 and the box rod 30 are not molded separately and not joined, but molded in one piece, thus ensuring sufficient mechanical strength of the box part 10 even when the guide surface 11 is formed on the box body 20.

[0049] The insertion rod 50 is arranged adjacent to the coupling element 7, which is positioned at the very end of the arrangement of multiple coupling elements 7, and is attached to the core cord 6c of the support belt 6. The insertion rod 50 extends longitudinally along the zipper's longitudinal section 5 and is inserted into the receiving space of the box body 20 via the slider 9. The insertion rod 50 has a first side surface 51 on the side of the box body 20 and a second side surface 52 opposite the first side surface 51. As explained above, the concave surface 51a and the convex surface 51b are formed in the first side surface 51.The second side surface 22 is a flat or smooth surface extending along the same line as the guide line L2 described above, but may optionally have a curved surface 52a curved on the side opposite the convex surface 51b, thus allowing the insertion rod 50 to move more easily inside the slide 9. Optionally, the insertion rod 50 is provided in its front end section with an engagement section 55 that engages with the coupling member 4, which is positioned at the very end of the arrangement of multiple coupling members 4. The engagement section 55 includes a section extending outwards from the support band 6 and inserted into a space between the head and base sections of the coupling member of the engaging partner. In cases where the insertion rod 50 is made of plastic, it would have a complex or precise shape, as described above.

[0050] The following is a description with reference to Fig. 7. The stop surfaces 16, 17 of the box body 20 described above are designed such that they have a width smaller than a width W9 in the rear end section of the slider 9. The stop surface 16 of the box body 20 contacts the upper wing 91 of the slider 9, and the front end face of its flange 28 contacts the rear end face of the left flange 94 of the slider 9, but the box body 20 does not contact the right flange 95 of the slider 9. The stop surface 17 of the box body 20 contacts the lower wing 92 of the slider 9, and the front end face of its flange 29 contacts the rear end face of the left flange 96 of the slider 9, but the box body 20 does not contact the right flange 97 of the slider 9. In this case, it would not be possible to rule out the possibility that a force from the slider 9 could be exerted on the box body 20 with respect to the center line CL of the zipper. 1 is exercised unevenly.This would not be a significant problem, however, since the stop surfaces 16, 17 are sufficiently elongated in the left-right direction. Preferably, the length of the stop surface 16, 17 in the width direction of the support belt 3 is equal to or less than the width W9 of the rear end section of the slide 9 in the same direction and equal to or greater than 0.8 times the width W9.

[0051] In embodiments where the second side surface 22 is arranged collinearly with the guide line L2, the front end face of the flange 28, 29 also does not touch the rear end face of the left flange 94, 96 of the slide 9. In this case, the stop surfaces 16, 17 contact the upper and lower wings 91 and 92 of the slide 9, thus preventing the box body 20 from moving into the rear opening M1 of the slide 9. To distribute a force exerted by the slide 9 on the box body 20, it may be possible to increase the respective thicknesses of the upper and lower plates 25 and 26 in the up-down direction to ensure increased thicknesses of the stop surfaces 16, 17 in the up-down direction. However, it may be more advantageous if the upper and lower surfaces of the respective upper and lower plates 25 and 26 are essentially coplanar to the upper surface of the upper wing 91 and 26, respectively.to the underside of the lower wing 92 of the slider 9, which would result in a slimmer (neater) appearance of the zipper 1. Furthermore, it might prevent the zipper longitudinal section 2, 5 from tilting during sewing due to the thickness of the box body 20, thus preventing a reduction in its guiding ability. Based on the foregoing descriptions, it is preferred that the slider 9 contact the stop surfaces 16, 17 and the front end faces of the flanges 28, 29 to achieve a slimmer appearance, maintain guiding ability, and distribute the force exerted by the slider 9 on the box body 20.

[0052] In Fig. Figure 5, which will now be referenced for explanation, shows that an edge between the top of the box body 20 and the second side surface 22 is chamfered, and the same applies to an edge between the bottom of the box body 20 and the second side surface 22. Regarding the manner of the chamfer, the angle of inclination of the chamfer between the top of the box body 20 and the second side surface 22 increases as one approaches the second side surface 22; that is, the top of the box body 20 comprises a surface that gradually slopes down towards the second side surface 22. This allows the flange 28, 29 to maintain its width (thickness) throughout the entire vertical range corresponding to the distance between the second inner surface 24 and the second side surface 22. The formation of the gradually inclined surface contributes to the slimmer appearance of the box body 20. Fig. 5 are an edge between the top of the box body 20 and the first side surface 21 and an edge between the bottom of the box body 20 and the first side surface 21 chamfered in a similar manner.

[0053] In general terms, the guide surface 11 described above can comprise one or more first guide areas (e.g., the flat surfaces 31a, 31c described above) formed on the box bar 30, and at least one second guide area (e.g., the first side surface 21 described above) formed on the box body 20. The second guide area is designed to be in the same plane as the first guide area. If the slide 9 is prevented from moving at its rearmost position by the box body 20, the guide surface 11 can also lie substantially in the same plane as the inner wall surface S9 of the flange 94, 96 of the upper or lower wing 91 and 92 of the slide 9 in its rear end section (see Fig. 7) The inner wall surface S9 of the flange 94, 96 in the rear end section extends parallel to and along the center line CL of the zipper 1.

[0054] With reference to Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. Section 12 describes a method for sewing the zipper longitudinal part 2 and the fabric 101 based on the operation of a sewing machine 900. As in Fig. As shown in Figure 8, a laminate, in which the support strip 3 of the zipper section 2 is placed on the fabric 101, is positioned on a needle plate 999 of the sewing machine 900. A suitable load is applied to the laminate by a presser foot 200, thus preventing its displacement. Advantageously, the presser foot 200 is adjusted so that its underside is in contact with the surface of the support strip of the zipper section (i.e., the presser foot 200 is not in contact with the fabric to which the zipper section is sewn). This ensures that even when using smaller coupling links 4, the presser foot 200 and the coupling link 4 are reliably brought into contact.

[0055] When a feed dog 901 is operating (e.g., box-shaped movement, indicated by arrow J2), the laminate described above is intermittently transported downstream of the feed direction (see arrow J1). While the laminate is stationary, an upper needle 301 descends with a top thread 401 passing through its eye and penetrates the laminate. When the bobbin feeder 302 (e.g., horizontal or vertical swivel hook) is operating, the bobbin thread 402 it feeds crosses the top thread 401. As the upper needle 301 moves upward, the bobbin thread 402 is carried along, and tension is applied to both threads. In this way, the fabric 101 and the support belt 3 are sewn together with the sewing machine thread (the top thread 401 and the bobbin thread 402).Typically, the transport time window for the laminate and the operating time window for the upper and lower needle feed are set complementarily, but this is not the only way, and the two windows can partially overlap.

[0056] While the fabric 101 and the support strap 3 are being sewn together with the sewing machine 900 as described above, a worker assigned to the sewing process normally assists in transporting the zipper section 2 to the presser foot 200 (more precisely, to the point where the upper needle 301 moves in the up-down direction), and the zipper section 2 is transported to the presser foot 200 in a suitable orientation or at a suitable angle. As can be seen from the preceding descriptions, in the present embodiment, the plastic part 8a has the guide surface 11, which is arranged collinearly with the first imaginary line G1 described above.Accordingly, when the zipper section 2 and the fabric 101 are sewn together with the sewing machine, the presser foot 200 can smoothly transition from a state of direct contact with the dome elements 4 to a state of direct contact with the guide surface 11 of the plastic part 8a, and vice versa. This reduces the effort required to sew the zipper section 2 to the fabric 101 and also ensures consistent seam quality regardless of the skill level of the workers involved in the sewing process.

[0057] As in Fig. 9 and Fig. As can be seen in Figure 10, the zipper section 2 is transported in a straight line based on the direct contact between the dome links 4 and the presser foot 200 within a time window in which the zipper section 2 and the fabric 101 are transported based on the operation of the sewing machine 900. Based on the operation of the sewing machine 900, the support belt 3 and the fabric 101 are sewn along the planned sewing line F2, which runs parallel to the guide line L1 described above, and the straight seam F1 is formed.

[0058] How to learn by comparing the Fig. 10 and Fig. Upon detection of the slider 9, the zipper longitudinal section 2 is transported in a straight line along the transport direction based on the direct contact between the pusher foot 200 and the guide surface 11 of the plastic part 8a, which is arranged collinearly to the guide line L1, after (or from a point in time at which) the plastic part 8a enters the section R200 adjacent to the pusher foot 200, the plastic part 8a being positioned upstream of the plurality of coupling elements 4 in the transport direction and serving to prevent the slider 9 from falling off the zipper longitudinal section 2. Even as the straight transport of the zipper longitudinal section 2 towards the pusher foot 200 continues, the plastic part 8a does not collide with the pusher foot 200, and therefore a straight seam F1 is formed.In other words, there is no need to adjust the orientation or angle of the zipper section 2 to prevent a collision between the plastic part 8a and the presser foot 200. Specifically, not only is a collision between the presser foot 200 and the plastic part 8a avoided, but a stable transport orientation of the zipper section 2 relative to the presser foot 200 is also maintained based on the contact between the presser foot 200 and the guide surface 11 of the plastic part 8a. This ensures that the seam F1 is formed in a straight line even in the section adjacent to the plastic part 8a.

[0059] In the Fig. In the case shown in Figure 10, the side surfaces 44 of two or more dome members 4 are in contact with the presser foot 200. Based on the operation of the sewing machine 900, the seam F1 is formed along the second imaginary line G2 (the planned sewing line F2), which runs parallel to the first imaginary line G1, which is established by contact between the side surfaces 44 of the two or more dome members 4 and the presser foot 200.

[0060] In some cases, the pusher foot 200 comprises two pressure plates 201, 202, each extending parallel to the upstream direction of transport, and a connecting section 203 to which the pressure plates are coupled; and a point of movement for the upper needle 301 in the up-down direction is set between the two pressure plates 201, 202. The pusher foot 200 contacts the side surface 44 of the coupling element 4 with one side surface 201a of the pressure plate 201. This one side surface 201a of the pressure plate 201 is a flat surface extending in a straight line parallel to the direction of transport, but is not limited to this and can, for example, also be a corrugated surface. Even in this case, the technical effect according to the present disclosure would not be limited. The shape of the pusher foot 200 would not be limited to the shape shown.

[0061] In the Fig. In the case shown in Figure 11, the side surface 44 of the dome member 4 and the planar surface 31a (i.e., a section of the guide surface 11) are in contact with the push-button foot 200. The first side surface 31 of the box bar 30 is collinear with the guide line L1, without forming any projection relative to the guide line L1. Therefore, the two would not interfere with each other, even if the box bar 30 enters the section adjacent to the push-button foot 200. Consequently, the formation of the straight weld F1 would also be maintained in the section adjacent to the box bar 30.

[0062] In the Fig. In the case shown in Figure 12, the side surface 44 of the dome member 4, the planar surface 31a, 31c of the box rod 30 (i.e., a section of the guide surface 11), and the first side surface 21 of the box body 20 (i.e., the remainder of the guide surface 11) are in contact with the push-button foot 200. The first side surface 21 of the box body 20 is collinear with the guide line L1, without any projection relative to the guide line L1. Therefore, the two would not interfere with each other, even if the box body 20 extends into the section adjacent to the push-button foot 200. Consequently, the weld F1 would continue to be straight even in the section adjacent to the box body 20.

[0063] Thus, the object 100 has the seam F1, which is formed parallel to the first imaginary line G1, established by the direct contact between two or more of the many coupling elements 4 and the presser foot 200 of the sewing machine 900, and the seam F1 is also formed parallel to the guide surface 11 of the plastic part 8a, which is collinear with the first imaginary line G1. In other words, the object 100 has the seam F1, which is formed parallel to the guide line L1, which is collinear in the front-to-back direction with the side surfaces 44 of the plurality of coupling elements 4 when the zipper is viewed from above. The seam F1 can be formed completely straight over the entire length of the zipper 1, without bending, curving, or meandering.In particular, a technical problem of bending or meandering of a seam, which was caused in the section adjacent to the limiting part, is overcome in order to avoid a collision of the push button foot with the limiting part.

[0064] It would be possible to sew the left zipper section 5 using the sewing machine 900, as shown in Fig. Figure 13 shows the insertion rod being sewn to the tissue 102 in advance. In this case, the insertion rod 50 is not inserted into the box body 20, so the pusher foot 200 would not interfere with the left section of the box body 20, even if the second side surface 22 of the box body 20 is positioned further from the midline CL than the guide line L2. The insertion rod 50 has a flat or smooth surface, with an optional curved surface 52a extending collinearly to the guide line L2. Therefore, the insertion rod 50 would not interfere with the pusher foot 200, or if it did, only to a minor degree.

[0065] It would be possible to sew the right zipper length 2 to the fabric 101, while the left zipper length 5 remains separate (see Fig. 14), unlike when the right zipper length 2 is sewn to fabric 101, while the left zipper length 5 is coupled to the right zipper length 2. It would be possible to simultaneously sew the right zipper length 2 to fabric 101 and the left zipper length 5 to fabric 102 (see Fig. 15).

[0066] A limiting part provided for the zipper 1 (i.e., a rear limiting part) is not limited to the separable limiting part 8 formed from a combination of the plastic parts 8a, 8b, but can also be a non-separable limiting part 8', as shown in Fig. Figure 16 shows that the non-separable limiting part 8' comprises a first side surface 21' as the guide surface 11 described above, thus achieving a similar technical effect. Note that the separable limiting part 8 has a thinner section (e.g., the flange 28, 29) compared to the non-separable limiting part 8', and its mechanical strength may be relatively lower. To compensate for this, the insertion rod 50 can be in contact with and held between the flange 28, 29 and the box bar 30 when the insertion rod 50 is inserted into the box body 20 and the slide 9 is moved forward to a position away from the box body 10 and the insertion rod 50, as shown in Figure 16. Fig. As can be seen in Figure 6. This ensures sufficient mechanical strength of the limiting part 8 in a state where the insertion rod 50 and the box part 10 are coupled. By using plastic to form the separable limiting part 8, the insertion rod 50 and the box part 10 can be precisely shaped for the task described above.

[0067] The dome elements 4, 7 of the zipper longitudinal section 2, 5 can be provided not only as separate individual islands in the longitudinal direction of the zipper longitudinal section 2, 5, but also as a single, continuous piece in which the respective dome elements 4, 7 are connected to each other in the longitudinal direction of the zipper longitudinal section 2, 5. Fig.17 The coupling element is provided as a continuous piece with respective helical units 4' of a helical monofilament, in which engagement heads 43' are formed at a given distance. The helical unit 4' has an upper leg 46 extending inwards from an upper end of an engagement head 43' running in the up-down direction into the support belt; a lower leg (not shown) extending inwards from a lower end of the engagement head 43' into the support belt; and a return section 47 connecting the upper leg 46 and the lower leg of adjacent helical units 4'. Contact between the pusher foot 200 and the return sections 47 of adjacent helical units 4' in the longitudinal direction of the zipper longitudinal part 2', 5' establishes the guide line L1'.The box part 10 of the limiting part 8 includes a guide surface 11 which corresponds to the guide surface described above, so that a technical effect would be achieved which corresponds to the effect described above.

[0068] Based on the teachings described above, a person skilled in the art would be able to make various modifications to the respective embodiments and features. Reference numerals in the claims serve only for reference and are not to be used for a narrow interpretation of the scope of protection of the claims. As a precaution, a zipper longitudinal section to be sewn to a fabric can be sewn to the fabric (i) in a state in which it is coupled to the other zipper longitudinal section of the pair, or (ii) in a single longitudinal section state in which it is separated from the other zipper longitudinal section of the pair.The straight-line transfer of the zipper longitudinal part 2 based on direct contact between the pusher foot 200 and two or more dome links 4 and the straight-line transfer of the zipper longitudinal part 2 based on direct contact between the pusher foot 200 and the plastic part 8a can be carried out in this order or in reverse order. [Reference sign] 1 zipper 2 zippered longitudinal section 3 Carrying strap 3c core strand 4 dome link 5 zipper length section 6 Carrying strap 6c core strand 7 dome link 8 Limiting part 9 sliders 10 Box section 11 Guide surface 20 box bodies 21 First side surface 22 Second side surface 30 Box bar 31 First side surface 32 Second side surface 50 insertion rods 100 items 101 tissues 102 tissues 200 push button feet 900 sewing machine C1 Centerline CL center line D1 First Distance D2 Second Distance F1 seam F2 Planned sewing line L1 guide line L2 guide line R200 section QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 51-95459

[0002] JP 2002-223820

[0002] JP 2003-180413

[0002] US 2,438,615

[0002] US 2,546,649

[0002] US 2,600,905

[0002]

Claims

[1] Method for sewing a zipper longitudinal part (2) to a fabric (101) using a sewing machine (900) equipped with a presser foot (200), wherein the zipper longitudinal part (2) comprises a plurality of dome links (4) attached individually or as a connected piece in a longitudinal direction of a support belt (3) to an elongated side edge section of the support belt (3), and a plastic part (10) arranged adjacent to a dome link (4) positioned at the very end of the plurality of dome links (4) in the longitudinal direction of the support belt (3) to prevent a slider from falling off, wherein the method comprises: straight-line transport of a zipper longitudinal part (2) based on direct contact between the pusher foot (200) and two or more dome links (4) that are included in the plurality of dome links (4) and positioned adjacent to the pusher foot (200), wherein a first imaginary line (G1) is established by the direct contact between the pusher foot (200) and the two or more dome links (4); Sewing the support strap (3) to the fabric (101) along a second imaginary line (G2) that runs parallel to the first imaginary line (G1); Straight-line transport of the zipper longitudinal part (2) based on direct contact between the plastic part (10) and the push-button foot (200), wherein a third imaginary line (G3) is established by the direct contact between the plastic part (10) and the push-button foot (200); and Sewing the support strap (3) to the fabric (101) along a fourth imaginary line (G4) that runs parallel to the third imaginary line (G3), wherein the straight-line transport of a zipper longitudinal part (2) based on direct contact between the pusher foot (200) and two or more dome links (4) and the straight-line transport of the zipper longitudinal part (2) based on direct contact between the plastic part (10) and the pusher foot (200) in this order or in a reverse order, and the plastic part (10) has a guide surface (11) with which the pusher foot (200) comes into contact, so that the first and third imaginary lines (G1, G3) run collinearly to form a (number word) guide line (L1), and the second and fourth imaginary lines (G2, G4) run collinearly to form a (number word) planned sewing line (F2). [2] Method according to claim 1, wherein the plastic part (10) is a box part of a separable limiting part, the box part comprising a box rod (30) positioned adjacent to the coupling member (4) positioned at the very end and inserted into the slide, and a box body (20) with one or more stop surfaces (16, 17) with which the box rod (30) is coupled and by which the slide is prevented from moving, wherein the guide surface (11) comprises one or more first guide areas on the box bar (30) and at least one second guide area on the box body (20), and which has at least one second management area that is coplanar with one or more first management areas. [3] Method according to claim 2, wherein the box bar (30) has two flat surfaces (31a, 31c) arranged collinear to the guide line (L1) and a concave surface (31b) arranged between these two flat surfaces (31a, 31c). [4] Method according to claim 3, wherein the length of the concave surface (31b) along the guide line (L1) is greater than the total length of the two flat surfaces (31a, 31c) along the guide line (L1). [5] Method according to one of claims 2 to 4, wherein the box rod (30) and an insertion rod (50) inserted into a receiving space of the box body (20) have opposite surfaces which are at least partially complementary in shape. [6] Method according to any one of claims 2 to 5, wherein the side edge section of the support belt (3) comprises at least one core cord (3c) to which individual coupling members (4) of the plurality of coupling members (4) are attached and the box body (20) is attached, wherein the box body (20) has a first side surface (21) and a first inner surface (23) between which the core cord (3c) is arranged, wherein the first inner surface (23) partially defines the receiving space for the insertion rod (50), a minimum distance between the center of the core cord (3c) and the first side surface (21) in a width direction of the support belt (3) is smaller than a minimum distance between the center of the core cord (3c) and the first inner surface (23) in the width direction of the support belt (3). [7] Method according to claim 6, wherein 1,2<(T / S)<1,6 is satisfied, wherein S indicates the minimum distance between the center of the core cord (3c) and the first side surface (21) and T indicates the minimum distance between the center of the core cord (3c) and the first inner surface (23). [8] Method according to any one of claims 2 to 7, wherein the box body (20) has a first side surface (21) and a second side surface (22) arranged opposite to the first side surface (21), wherein the first side surface (21) and the second side surface (22) define a width (W20) of the box body (20), wherein (i) a center line (C1) positioned at the midpoint of the width (W20) of the box body (20) defined between the first side face (21) and the second side face (22), is shifted away from the support strap (3) to a position where the center line (C1) does not cross the box bar (30), and / or is positioned further away from the support strap (3) than a center line (CL) of a zipper (1) that includes the zipper longitudinal part (2) as a first zipper longitudinal part (2); and / or (ii) the first side surface (21) is positioned a first distance away from a center line (CL) of a zipper (1) which includes the zipper longitudinal part (2) as a first zipper longitudinal part (2), the second side surface (22) is positioned a second distance away from the center line (CL) of the zipper (1), and the first distance is less than the second distance. [9] Method according to claim 8, wherein condition (ii) is satisfied, wherein 1,1<(D2 / D1)<1.5 is satisfied, wherein D1 indicates the first distance and D2 indicates the second distance. [10] Method according to any one of claims 1 to 9, wherein the guide surface (11) is incorporated into an inclined surface which is inclined away from a belt surface of the support belt (3) and outwards from the support belt (3). [11] Object (100) with a zipper (1) sewn onto the object (100), wherein the zipper (1) comprises a first and a second zipper longitudinal part (2, 5) and a slider (9) which moves in a front-to-back direction to couple or uncouple the first and the second zipper longitudinal part (2, 5), wherein the first zipper longitudinal part (2) comprises a first support strap (3), a plurality of first coupling links (4) which are attached individually or as a connected piece to an elongated side edge section of the first support strap (3) extending in the front-back direction, and a plastic part (10) arranged adjacent to a first coupling link (4) which is positioned at the very end of the plurality of first coupling links (4) in the front-back direction to prevent the slider from falling down, a respective first dome element (4) that is included in the plurality of first dome elements (4) comprises a surface (44) that points inwards to the first support band (3) and is included in a first imaginary line (G1) that extends in the front-back direction, the plastic part (10) is a box part of a separable limiting part, wherein the box part comprises a box rod (30) which is positioned adjacent to the coupling member (4) at the very end and inserted into the slide, and a box body (20) with one or more stop surfaces (16, 17) with which the box rod (30) is coupled and by which the slide is prevented from moving, and a seam (F1) is formed parallel to the first imaginary line (G1) and is also formed parallel to a guide surface (11) of the plastic part (10), which is arranged collinearly to the first imaginary line (G1). [12] The object according to claim 11, wherein the width of an exposed section of the support belt (3) on an outside of the object (100) is in a range between 0 mm and 1.5 mm. [13] Zipper (1) comprising the following: a first and a second zipper longitudinal section (2, 5); and a slider (9) which moves in a front-to-back direction to couple or uncouple the first and second zipper longitudinal parts (2, 5), wherein the first zipper longitudinal part (2) comprises a first support strap (3), a plurality of first coupling links (4) which are attached individually or as a connected piece to an elongated side edge section of the first support strap (3) extending in the front-back direction, and a plastic part (10) arranged adjacent to a first coupling link (4) which is positioned at the very end of the plurality of first coupling links (4) in the front-back direction to prevent the slider from falling down, a respective first dome element (4) that is included in the plurality of first dome elements (4) comprises a surface (44) that points inwards to the first support band (3) and is included in a first imaginary line (G1) that extends in the front-back direction, the plastic part (10) is a box part of a separable limiting part, the box part comprising a box rod (30) positioned adjacent to the coupling member (4) at the very end and inserted into the slide, and a box body (20) with one or more stop surfaces (16, 17) with which the box rod (30) is coupled and by which the slide is prevented from moving; and the box part has a guide surface (11) which is arranged collinearly to the first imaginary line (G1). [14] Zipper (1) according to claim 13, wherein only a single injection point is formed on the surface of the plastic part (10). [15] Zipper (1) according to claim 13, wherein the box body (20) has a first side surface (21) and a second side surface (22) arranged opposite to the first side surface (21), wherein the first side surface (21) and the second side surface (22) define a width (W20) of the box body (20), wherein (i) a center line (C1) positioned at the midpoint of the width (W20) of the box body (20) defined between the first side face (21) and the second side face (22), is shifted away from the support strap (3) to a position where the center line (C1) does not cross the box bar (30), and / or is positioned further away from the support strap (3) than a center line (CL) of the zipper (1); and / or (ii) the first side surface (21) is positioned a first distance away from a center line (CL) of the zipper (1), the second side surface (22) is positioned a second distance away from the center line (CL) of the zipper (1), and the first distance is less than the second distance. [16] Zipper according to claim 15, wherein condition (ii) is satisfied, wherein 1.1<(D2 / D1)<1.5 is satisfied, wherein D1 indicates the first distance and D2 indicates the second distance.

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