slider

Abstract

To provide a slider with good assembly operability and structural strength. [Solution] The slider 100 comprises a slider body (110) including an upper wing plate (112) and a lower wing plate (114) installed facing each other, and a slider replacement sheet (120) including a rear opening (122) and a pair of slide rail sections (124) that extend forward from the rear opening in the longitudinal direction (L) and are separated from each other. A pair of slide groove sections (112g) extending in the longitudinal direction are provided correspondingly on the opposing side edges (112s) in the width direction (W) of one of the upper wing plate and the lower wing plate. The slider replacement sheet is attached to one of the upper wing plate and the lower wing plate by the pair of slide rail sections sliding horizontally along the pair of slide groove sections relative to the slider body, and becomes a part of one of the upper wing plate and the lower wing plate.

Description

Technical Field

[0001] The present invention relates to the technology in the field of fasteners, and particularly to sliders.

Background Art

[0002] In the prior art, a general fastener usually consists of a fastener chain composed of a strip-shaped fastener tape and a pair of fastener stringers composed of a plurality of element columns arranged on the fastener tape, and a slider attached to the fastener stringer and opening and closing the element columns by sliding. Further, a pull tab is provided on the slider as needed to slide the slider on the fastener chain. The slider is usually manufactured as an integral slider body having upper and lower wing plates arranged opposite to each other, and a pull tab mounting post is provided or formed on the upper surface of the upper wing plate of the slider body. Therefore, when a local part of one of the upper and lower wing plates of the slider is damaged, usually, the entire slider needs to be discarded. In contrast, currently, a method of replacing one part of the upper and lower wing plates with a slider replacement sheet has been developed so that only the slider replacement sheet can be replaced when a local part of one of the upper and lower wing plates is damaged. However, in the currently developed combined slider, since the slider body and the slider replacement sheet are connected by a pivot, the assembly procedure is complicated and the structural strength is low. Therefore, it is necessary to improve the structure of the slider and enhance the assembly operability and structural strength.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present invention provides a slider having good assembly operability and structural strength. [Means for solving the problem]

[0004] The present invention provides a slider comprising a slider body including an upper wing plate and a lower wing plate installed facing each other, and a slider replacement sheet including a rear opening and a pair of slide rails extending forward from the rear opening in the longitudinal direction and separated from each other, wherein a pair of slide grooves extending in the longitudinal direction are provided correspondingly on the opposing side edges in the width direction of one of the upper wing plate and the lower wing plate, and the slider replacement sheet is attached to one of the upper wing plate and the lower wing plate by the pair of slide rails sliding horizontally along the pair of slide grooves relative to the slider body, thereby providing a slider that is part of one of the upper wing plate and the lower wing plate.

[0005] In the slider according to the embodiment of the present invention, the pair of slide rails extend inclined forward from the rear opening in the longitudinal direction, and the distance between the pair of slide rails in the width direction gradually increases from the rear opening forward, and with the slider replacement sheet attached to one of the upper wing plate and the lower wing plate, the pair of slide rails clamp the opposing side edges of one of the upper wing plate and the lower wing plate, which are provided with a pair of slide grooves.

[0006] In the slider according to an embodiment of the present invention, each of the pair of slide rail portions has a first notch groove extending in the width direction, the first notch groove is located inside the slide rail portion, and the slide rail portion is configured to be deformable from the inside to the outside via the first notch groove.

[0007] In the slider according to the embodiment of the present invention, the first notch groove is positioned closer to the rear end than to the front end in the longitudinal direction of the slide rail portion.

[0008] In the slider according to an embodiment of the present invention, each of the pair of slide rail sections has a second notch groove extending in the longitudinal direction, and the second notch groove is located in the center of the slide rail section and connected to the first notch groove, thereby configuring the slide rail section to be deformable from the inside to the outside via the first notch groove and the second notch groove.

[0009] In the slider according to an embodiment of the present invention, each of the pair of slide rails has a convex rib extending along the longitudinal direction, and with the slider replacement sheet attached to one of the upper wing plate and the lower wing plate, the convex rib is fitted into the slide groove along the longitudinal direction.

[0010] In the slider according to the embodiment of the present invention, with the slider replacement sheet attached to one of the upper wing plate and the lower wing plate, the upper and lower surfaces of the convex rib are covered with the slide groove along the longitudinal direction.

[0011] In the slider according to the embodiment of the present invention, each of the pair of slide rails has a fitting projection that protrudes inward from the inner surface at its front end in the longitudinal direction, and is attached to one of the upper wing plate and the lower wing plate by sliding horizontally along the pair of slide grooves via the fitting projection.

[0012] In the slider according to the embodiment of the present invention, each of the pair of slide grooves has a fitting recess recessed inward from the outer surface at the front end in the longitudinal direction, and the depth of the fitting recess is greater than the depth of the slide groove, and the slider replacement sheet is fixed to one of the upper wing plate and the lower wing plate by the fitting projection of the slide rail fitting into the fitting recess of the slide groove.

[0013] In the slider according to the embodiment of the present invention, the rear opening of the slider replacement sheet has a snap hole at its rear end in the longitudinal direction, and one of the upper wing plate and the lower wing plate has a hook at its rear end in the longitudinal direction, and the slider replacement sheet is fixed to one of the upper wing plate and the lower wing plate by the snap hole fitting onto the hook.

[0014] In the slider according to the embodiment of the present invention, one of the upper wing plate and the lower wing plate is provided with a step portion at the rear end in the longitudinal direction, and the slider replacement sheet is attached to one of the upper wing plate and the lower wing plate, with at least a portion of the rear opening abutting against the step portion.

[0015] In the slider according to the embodiment of the present invention, the length of the upper wing plate is smaller than the length of the lower wing plate in the longitudinal direction, the rear end of the upper wing plate in the longitudinal direction is brought closer to the front than the rear end of the lower wing plate in the longitudinal direction, the slider replacement sheet is attached to the upper wing plate and its rear opening is in contact with the rear end of the upper wing plate, and the length of both the slider replacement sheet and the upper wing plate in the longitudinal direction after attachment corresponds to the length of the lower wing plate.

[0016] In the slider according to an embodiment of the present invention, the slider replacement sheet further comprises a projection installed on the upper surface of the rear opening, and when the slider replacement sheet is attached to the upper wing plate, the projection faces the rear open end of the handle mounting column installed on the upper surface of the upper wing plate and forms a retaining wall located on the rear side of the handle mounting column and the upper wing plate.

[0017] In the slider according to an embodiment of the present invention, the projection comprises an inclined portion that extends backward from the front end of the rear opening and a parallel portion that extends from the inclined portion to the rear end of the rear opening, and the distance in the thickness direction between the parallel portion and the open end of the handle mounting column is smaller than the distance in the thickness direction between the inclined portion and the handle mounting column.

[0018] In the slider according to the embodiment of the present invention, in the front-rear direction of the projection, the front end of the parallel portion is located in front of the front end of the open end of the handle mounting column.

[0019] In the slider according to the embodiment of the present invention, the material of the slider body and the slider replacement sheet contains zinc. [Effects of the Invention]

[0020] Based on the above, in the slider of the present invention, the slider replacement sheet includes a pair of slide rail sections that extend forward from the rear opening in the longitudinal direction and are separated from each other, and a pair of slide groove sections extending in the longitudinal direction are provided correspondingly on the opposing side edges in the width direction of one of the upper and lower wing plates of the slider body. The slider replacement sheet is attached to one of the upper and lower wing plates by the pair of slide rail sections sliding horizontally along the pair of slide groove sections relative to the slider body, and becomes a part of one of the upper and lower wing plates. In this way, the slider replacement sheet can be easily attached by the pair of separated slide rail sections sliding horizontally along the pair of slide groove sections, and can also be attached by the pair of slide rail sections clamping the opposing side edges of one of the upper and lower wing plates. As a result, the slider of the present invention has good assembly operability and structural strength. [Brief explanation of the drawing]

[0021] To better understand the above-mentioned features and advantages of the present invention, the following examples will be given and described in detail with reference to the drawings.

[0022] [Figure 1] This is a schematic three-dimensional diagram of a slider before assembly, relating to one embodiment of the present invention. [Figure 2] Figure 1 is a schematic three-dimensional diagram of the assembled slider. [Figure 3] Figure 1 is a schematic plan view of the slider replacement sheet used in the slider shown. [Figure 4A] It is a plan schematic diagram before assembling the slider shown in FIG. 1. [Figure 4B] It is a plan schematic diagram during the assembly of the slider shown in FIG. 1. [Figure 4C] It is a plan schematic diagram after assembling the slider shown in FIG. 1. [Figure 5] It is a plan schematic diagram in another modification example of the slider replacement sheet shown in FIG. 1. [Figure 6] It is a three-dimensional schematic diagram after assembling the slider according to another embodiment of the present invention. [Figure 7] It is a side schematic diagram of the slider shown in FIG. 6. [Figure 8] It is a three-dimensional schematic diagram of the slider replacement sheet used for the slider shown in FIG. 6.

MODE FOR CARRYING OUT THE INVENTION

[0023] Hereinafter, exemplary embodiments of the present invention will be referred to in detail, and examples of the exemplary embodiments will be shown in the drawings. FIG. 1 is a three-dimensional schematic diagram before assembling the slider according to an embodiment of the present invention, FIG. 2 is a three-dimensional schematic diagram after assembling the slider shown in FIG. 1, FIG. 3 is a plan schematic diagram of the slider replacement sheet used for the slider shown in FIG. 1, FIGS. 4A to 4C are plan schematic diagrams before, during, and after assembling the slider shown in FIG. 1, FIG. 5 is a plan schematic diagram in another modification example of the slider replacement sheet shown in FIG. 1, FIG. 6 is a three-dimensional schematic diagram after assembling the slider according to another embodiment of the present invention, FIG. 7 is a side schematic diagram of the slider shown in FIG. 6, and FIG. 8 is a three-dimensional schematic diagram of the slider replacement sheet used for the slider shown in FIG. 6. Hereinafter, the specific structure and assembly method of the slider 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4C, the specific structure of the slider 100A according to another modification example of the present invention will be described with reference to FIG. 5, and the specific structure of the slider 100B according to another embodiment of the present invention will be described with reference to FIGS. 6 to 8. However, the present invention is not limited thereto and can be adjusted as necessary.

[0024] Referring to Figures 1 to 3, in this embodiment, the slider 100 includes a slider body 110 and a slider replacement sheet 120. The slider body 110 includes an upper wing plate 112 and a lower wing plate 114 arranged opposite to each other. The slider replacement sheet 120 includes a rear opening 122 and a pair of slide rail portions 124 that extend from the rear opening 122 to the front side S1 in the length direction L (corresponding to the front-rear direction) and are separated from each other. On one of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is taken as an example), opposite side edges 112s in the width direction W (corresponding to the left-right direction) are provided with a pair of slide groove portions 112g that extend in the length direction L. The slider replacement sheet 120 is attached to one of the upper wing plates 112 and lower wing plates 114 (upper wing plate 112) by a pair of slide rail sections 124 sliding horizontally relative to the slider body 110 along a pair of slide groove sections 112g (as shown in Figures 1 and 2), and becomes part of one of the upper wing plates 112 and lower wing plates 114 (upper wing plate 112).

[0025] Specifically, in this embodiment, as shown in Figures 1 and 2, the ends of the upper wing plate 112 and the lower wing plate 114 of the slider body 110 corresponding to the front side S1 in the longitudinal direction L are connected to each other by a guide post 113, and the ends of the upper wing plate 112 and the lower wing plate 114 corresponding to the rear side S2 in the longitudinal direction L form an open state, thereby forming an element passage 115 between the upper wing plate 112 and the lower wing plate 114 and on both the left and right sides of the guide post 113. In addition, a pull handle mounting post 116 is provided on the upper surface of the upper wing plate 112, extending from the front side S1 to the rear side S2 and forming a cantilever at the rear side S2 (however, it is not limited to this). Here, an example in which the slider replacement sheet 120 is attached to the upper wing plate 112 of the slider body 110 will be described. In addition to the base 117 connected to the guide post 113 and the handle attachment post 116 of the upper wing plate 112, the plate surface portion of the upper wing plate 112 and the opposing flange portions 118 on both sides corresponding to the element passage 115 are provided on the slider replacement sheet 120. This allows a portion of the upper wing plate 112 of the slider body 110 to be replaced using the slider replacement sheet 120 (shown in Figure 2). However, in other embodiments not shown, the slider replacement sheet 120 can also be used to replace a portion of the lower wing plate 114. The present invention does not limit the specific structure of the slider body 110 and is adjustable as needed.

[0026] Furthermore, in this embodiment, as shown in Figures 1 to 3, the rear opening 122 of the slider replacement sheet 120 forms an open state corresponding to the rear end S2 of the lower wing plate 114. The pair of slide rail portions 124 of the slider replacement sheet 120 extend from the rear opening 122 to the front side S1 in the longitudinal direction L and are separated from each other. The aforementioned flange portions 118 are provided on opposing sides of the slider replacement sheet 120 in the width direction W, extend from the rear opening 122 to the front side S1, and correspond at least partially to the outside of the pair of slide rail portions 124 (however, not limited to this). In contrast, the opposing side edges 112s of the upper wing plate 112 in the width direction W are provided on the base portion 117 and are substantially parallel to each other, and the pair of slide groove portions 112g extending in the longitudinal direction L are provided corresponding to the opposing side edges 112s and are substantially parallel to each other. Preferably, a pair of slide grooves 112g provided on opposing side edges 112s are substantially parallel to the plate surface direction of the upper wing plate 112 and the lower wing plate 114. This allows the slider replacement sheet 120 to be attached from opposing side edges 112s in the width direction W of the slider body 110 by a pair of separate slide rails 124 sliding horizontally relative to the slider body 110 along the pair of slide grooves 112g.

[0027] As an example, in this embodiment, the assembly method of the slider 100 is as follows, as shown in Figures 4A to 4C. When the slider replacement sheet 120 is attached to the slider body 110 from the rear side S2 of one of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is used as an example) (as shown in Figures 1 and 4A), the pair of slide rail portions 124 of the slider replacement sheet 120 first come into contact with the rear ends (corresponding to the ends of the rear side S2) of the pair of slide groove portions 112g provided on the opposing side edges 112s of the upper wing plate 112, then the pair of slide rail portions 124 slide forward S1 along the pair of slide groove portions 112g (as shown in Figure 4B), and the pair of slide rail portions 124 slide to the front end (corresponding to the ends of the front side S1) of the pair of slide groove portions 112g (as shown in Figures 2 and 4C). When the slider replacement sheet 120 is attached to one of the upper wing plates 112 and the lower wing plate 114 (upper wing plate 112), the slider replacement sheet 120 constitutes a complete slider 100 as part of one of the upper wing plates 112 and the lower wing plate 114 (upper wing plate 112) (as shown in Figures 2 and 4C). That is, the assembled slider 100 is attached to a fastener chain (not shown), and the fastener chain can be opened and closed by sliding it. Conversely, if a part of one of the upper wing plates 112 and the lower wing plate 114 (upper wing plate 112) is damaged, the slider replacement sheet 120 can be removed by sliding it in the opposite direction. That is, the slider replacement sheet 120 is replaced by a pair of slide rails 124 sliding horizontally from the front side S1 to the rear side S2 relative to the slider body 110 along a pair of slide grooves 112g (as shown in Figures 1 and 4A).

[0028] With the above configuration, in the slider 100 of this embodiment, the slider replacement sheet 120 includes a pair of slide rail portions 124 that extend from the rear opening portion 122 to the front side S1 in the length direction L and are separated from each other. A pair of slide groove portions 112g extending in the length direction L are provided correspondingly on the opposing side edges 112s in the width direction W of one of the upper wing plate 112 and lower wing plate 114 of the slider body 110 (here, the upper wing plate 112 is taken as an example). The slider replacement sheet 120 is attached to one of the upper wing plate 112 and lower wing plate 114 (upper wing plate 112) by the pair of slide rail portions 124 sliding horizontally relative to the slider body 110 along the pair of slide groove portions 112g, and becomes a part of one of the upper wing plate 112 and lower wing plate 114 (upper wing plate 112). Thus, the slider replacement sheet 120 can be easily installed by having a pair of separate slide rail sections 124 slide horizontally along a pair of slide groove sections 112g. Furthermore, the pair of slide rail sections 124 can be installed by clamping the opposing side edges 112s of one of the upper wing plates 112 and the lower wing plate 114 (upper wing plate 112). As a result, the slider 100 of this embodiment has good assembly operability and structural strength.

[0029] Furthermore, in this embodiment, as shown in Figures 1 to 3, the pair of slide rail sections 124 extend inclined toward the front side S1 from the rear end 122 in the longitudinal direction L, and the distance between the pair of slide rail sections 124 in the width direction W gradually increases toward the front side S1 from the rear end 122 (they are not parallel to each other). That is, the distance D1 between the rear end P2s of the pair of slide rail sections 124 connected to the rear end 122 is smaller than the distance D2 between the front end P1s opposite the rear end 122, and as a result the pair of slide rail sections 124 gradually expand outward in the width direction W toward the front end P1 from the rear end P2 in the longitudinal direction L (as shown in Figure 3). When the slider replacement sheet 120 slides horizontally relative to the slider body 110 along a pair of slide grooves 112g via a pair of slide rails 124, the pair of slide rails 124 first contact the rear end corresponding to the rear side S2 of the pair of slide grooves 112g with their front end P1, which has a larger distance D2 (as shown in Figures 1 and 4A), and then slide until the rear end P2, which has a smaller distance D1 to the front, also contacts the rear end corresponding to the rear side S2 of the pair of slide grooves 112g (as shown in Figures 2 and 4C). When the slider replacement sheet 120 is attached to one of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is used as an example), the pair of slide rails 124 clamp the opposing side edges 112s of one of the upper wing plate 112 and the lower wing plate 114 (the upper wing plate 112), where the pair of slide grooves 112g are provided.

[0030] Furthermore, in this embodiment, as shown in Figures 1 to 3, each pair of slide rail sections 124 has a first notch groove 124n1 extending in the width direction W, and the first notch groove 124n1 is located inside the slide rail section 124, configuring the slide rail section 124 to be deformable from the inside to the outside via the first notch groove 124n1. In addition, the first notch groove 124n1 is installed in the length direction L of the slide rail section 124, closer to the rear end P2 than to the front end P1. That is, the first notch groove 124n1 extends from the inside of the slide rail section 124 toward the middle of the slide rail section 124, but does not extend to the outside of the slide rail section 124 (it does not cut open the entire slide rail section 124 along the width direction W). As the pair of slide rail sections 124 slide forward S1 along the slide groove section 112g, the pair of slide rail sections 124, which are pressed by opposing side edges 112s, can deform by reversing from the inside to the outside with the first notch groove 124n1 near the rear end P2 as a reference point (as shown by the arrow in Figure 3). As a result, as the pair of slide rail sections 124 slide forward S1, their inner surfaces in the width direction W become more closely in contact with the contours of the opposing side edges 112s on which the slide groove section 112g is provided. As a result, the slider 100 not only extends the pair of slide rail sections 124 inclined toward the front side S1 from the rear opening 122 in the longitudinal direction L and expands outward, but also provides a first notch groove 124n1 near the rear end P2 connected to the rear opening 122 of the pair of slide rail sections 124, thereby making the slider replacement sheet 120 slide more smoothly, increasing the clamping effect of the pair of slide rail sections 124, and thereby improving the structural strength of the slider 100. The above description of the pair of slide rail sections 124 (provided inclined and expanding outward, and provided with the first notch groove 124n1 to facilitate outward deformation) is adjustable as needed, and the present invention is not limited thereto.

[0031] In contrast, in the modified slider 100A shown in Figure 5, the slider replacement sheet 120A has a similar structure to the aforementioned slider replacement sheet 120, but with the following differences. The pair of slide rail sections 124A of the slider replacement sheet 120A extend perpendicularly from the rear opening 122 to the front side S1 in the length direction L, and the distance D in the width direction W of the pair of slide rail sections 124A is approximately constant (parallel to each other) from the rear opening 122 to the front side S1. In addition, each of the pair of slide rail sections 124A extends in the width direction W and has a first notch groove 124n1 located inside the slide rail section 124A, and the first notch groove 124n1 is provided in a position close to the rear end P2 in the length direction L of the slide rail section 124A. Furthermore, each of the pair of slide rail sections 124A has a second notch groove 124n2 extending in the longitudinal direction L. The second notch groove 124n2 is located in the center of the slide rail section 124A and is connected to the first notch groove 124n1, so that the slide rail section 124A can be deformed from the inside to the outside via the first notch groove 124n1 and the second notch groove 124n2. That is, the second notch groove 124n2 extends from the center of the slide rail section 124A to the front side S1 and the rear side S2, but does not extend to the front end P1 and rear end P2 of the slide rail section 124A (it does not cut open the entire slide rail section 124A along the longitudinal direction L), and the second notch groove 124n2 is connected to the first notch groove 124n1 to form a T-shaped notch groove.

[0032] As can be seen from this, in the modified example shown in Figure 5, when the slider replacement sheet 120A is attached to the slider body 110 shown in Figures 1 to 3 instead of the aforementioned slider replacement sheet 120, the pair of slide rail sections 124A, which are pressed by opposing side edges 112s, can be deformed by reversing from the inside to the outside with respect to the T-shaped notch groove consisting of a first notch groove 124n1 and a second notch groove 124n2 connected to the first notch groove 124n1 near the rear end P2 (as shown by the arrow in Figure 5). As a result, the inner surface of the pair of slide rail sections 124A in the width direction W becomes more closely in contact with the contours of the opposing side edges 112s on which the slide groove section 112g is provided, as the pair of slide rail sections 124A slide forward to S1. As a result, compared to the slider 100 described above, the slider replacement sheet 120A of the modified slider 100A shown in Figure 5 not only has a first notch groove 124n1 near the rear end P2 connected to the rear opening 122 of the pair of slide rail sections 124A, but also has a second notch groove 124n2 in the center of the pair of slide rail sections 124A that extends in the longitudinal direction L and connects to the first notch groove 124n1, which allows the slider replacement sheet 120A to slide more smoothly, enhances the clamping effect of the pair of slide rail sections 124A, and thereby improves the structural strength of the slider 100. The above description regarding the pair of slide rail sections 124A (providing the first notch groove 124n1 and the second notch groove 124n2 to facilitate outward deformation) is adjustable as needed, and the present invention is not limited thereto.

[0033] Furthermore, in this embodiment, as shown in Figures 1 to 3, each pair of slide rail sections 124 has a convex rib 124r extending along the longitudinal direction L, and when the slider replacement sheet 120 is attached to one of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is taken as an example), the convex rib 124r is fitted into the slide groove section 112g along the longitudinal direction L. As an example, the convex rib 124r is provided on the inner surface of the slide rail section 124, protruding inward from the inner surface, and is provided in a position closer to the rear side S2 than the first notch groove 124n1 in the longitudinal direction L of the slide rail section 124. As the pair of slide rails 124 slide forward S1 along the slide groove 112g, as shown in Figures 4A to 4C, the pair of slide rails 124 can be deformed by reversing from the inside to the outside with the first notch groove 124n1 near the rear end P2 as a reference point (as shown by the arrow in Figure 3). Next, the convex rib 124r enters the slide groove 112g from the rear end (corresponding to the end of the rear side S2) and slides along the slide groove 112g to the front end (corresponding to the end of the front side S1) of the slide groove 112g. Furthermore, when the slider replacement sheet 120 is attached to one of the upper wing plates 112 and the lower wing plate 114 (upper wing plate 112), the upper and lower surfaces of the convex rib 124r are covered by the slide groove 112g along the length L. In other words, the convex rib 124r overlaps with the sliding groove portion 112g in the vertical direction (corresponding to the thickness direction T).

[0034] As can be seen from this, in this embodiment, the convex rib 124r provided on the slide rail portion 124 and closer to the rear side than the first notch groove 124n1 does not affect the deformation operation of the slider replacement sheet 120 of the slide rail portion 124, which reverses from the inside to the outside through the first notch groove 124n1. Furthermore, in the process of the convex rib 124r sliding forward S1 along the slide groove portion 112g, the upper and lower surfaces of the convex rib 124r are covered by the slide groove portion 112g along the length direction L, and the sliding of the convex rib 124r is restricted in the vertical direction (corresponding to the thickness direction T) by the inner surface of the slide groove portion 112g. As a result, the convex rib 124r acts as a guide portion in the process of the pair of slide rail portions 124 sliding along the pair of slide groove portions 112g, maintaining the horizontal sliding of the pair of slide rail portions 124 and making the sliding of the slider replacement sheet 120 smoother, thereby improving the assembly operability of the slider 100. The above description of the convex rib 124r also applies to the pair of slide rail sections 124A of the slider replacement sheet 120A shown in Figure 5. The specific structure and presence or absence of the convex rib 124r can be adjusted as needed, and the present invention is not limited thereto.

[0035] Similarly, in this embodiment, as shown in Figures 1 to 3, each pair of slide rail sections 124 has a fitting projection 124p projecting inward from the inner surface at its front end P1 in the longitudinal direction L, and the fitting projection 124p slides horizontally along the pair of slide grooves 112g to attach to one of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is used as an example). In the process of the pair of slide rail sections 124 sliding forward S1 along the slide grooves 112g, as shown in Figures 4A to 4C, the fitting projection 124p provided at the front end P1 of the pair of slide rail sections 124 first contacts the rear end of the slide groove 112g (corresponding to the end of the rear side S2), then the fitting projection 124p enters the slide groove 112g and slides forward S1 to the front end of the slide groove 112g (corresponding to the end of the front side S1). As a result, the fitting projection 124p acts as a guide during the process in which the pair of slide rail sections 124 slide along the pair of slide groove sections 112g, maintaining the horizontal sliding of the pair of slide rail sections 124 and making the sliding of the slider replacement sheet 120 smoother, thereby improving the assembly operability of the slider 100. The above description of the fitting projection 124p also applies to the pair of slide rail sections 124A of the slider replacement sheet 120A shown in Figure 5, and the specific structure and presence or absence of the fitting projection 124p can be adjusted as needed, and the present invention is not limited thereto.

[0036] Furthermore, in this embodiment, as shown in Figures 1 to 3, each pair of slide grooves 112g has a fitting recess 112r (shown in Figure 1) recessed inward from the outer surface at its front end (corresponding to the end of the front side S1) in the longitudinal direction L, and the depth of the fitting recess 112r is greater than the depth of the slide groove 112g. That is, the fitting recess 112r is recessed further inward on both opposing side edges 112s than the slide groove 112g. In the process of the pair of slide rails 124 sliding forward S1 along the slide groove 112g, as shown in Figures 4A to 4C, the pair of slide rails 124 first have a fitting projection 124p provided at the front end P1 enter the slide groove 112g from the rear end (corresponding to the end of the rear side S2), and then slide forward S1 to the front end (corresponding to the end of the front side S1) of the slide groove 112g. Furthermore, the slider replacement sheet 120 is fixed to one of the upper wing plates 112 and the lower wing plate 114 (here, the upper wing plate 112 is used as an example) by fitting the fitting projection 124p of the slide rail portion 124 into the fitting recess 112r of the slide groove portion 112g.

[0037] As an example, in this embodiment, as shown in Figures 1 to 3, the front end of the slide groove 112g (corresponding to the end of the front side S1) has an inclined wall 112w, and the front side S1 of the inclined wall 112w is recessed inward to form a fitting recess 112r. After the pair of slide rails 124 slide along the slide groove 112g to the front end of the slide groove 112g (corresponding to the end of the front side S1), the fitting projection 124p slides forward S1 and passes through the inclined wall 112w, and the slide rail 124 is pushed by the inclined wall 112w and deforms from the inside to the outside. After the fitting projection 124p passes through the inclined wall 112w, the slide rail 124 is released from the pressure of the inclined wall 112w and reverses inward, and the fitting projection 124p further enters the fitting recess 112r provided on the front side S1 of the inclined wall 112w and fits. However, the installation of the inclined wall 112w can be omitted, and a fitting recess 112r that recesses further inward can be formed at the front end of the slide groove 112g (corresponding to the end of the front side S1). This allows the fitting projection 124p to guide the pair of slide rails 124 during the sliding process, and by fitting together with the fitting recess 112r, the fixing effect of the slider replacement sheet 120 to the slider body 110 can be enhanced, thereby further improving the structural strength of the slider 100. The above description of the fitting recess 112r also applies to the pair of slide rails 124A of the slider replacement sheet 120A shown in Figure 5, and the specific structure and presence or absence of the fitting recess 112r can be adjusted as needed, and the present invention is not limited thereto.

[0038] Similarly, in this embodiment, as shown in Figures 1 to 3, the rear opening 122 of the slider replacement sheet 120 has a snap hole 126 at its rear end in the longitudinal direction L (corresponding to the end of the rear side S2). One of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is used as an example) has a hook 112h at its rear end in the longitudinal direction L (corresponding to the end of the rear side S2). In this way, after the pair of slide rail portions 124 slide forward S1 along the slide groove portion 112g, the hook 112h provided on one of the upper wing plate 112 and the lower wing plate 114 (the upper wing plate 112) passes through the snap hole 126 provided in the rear opening 122 of the slider replacement sheet 120, as shown in Figures 2 and 4C. Furthermore, the slider replacement sheet 120 is fixed to one of the upper wing plates 112 and lower wing plates 114 (the upper wing plate 112) by the snap hole 126 fitting into the hook 112h. As a result, the snap hole 126 and hook 112h provided at the rear end (corresponding to the rear end S2) do not affect the movement of the pair of slide rail sections 124 along the slide groove section 112g toward the front S1. By fitting together after the slider replacement sheet 120 is attached to the slider body 110, the fixing effect of the slider replacement sheet 120 to the slider body 110 can be enhanced, thereby further improving the structural strength of the slider 100. The above description of the snap hole 126 also applies to the pair of slide rail sections 124A of the slider replacement sheet 120A shown in Figure 5. The specific structure and presence or absence of the snap hole 126 and hook 112h can be adjusted as needed, and the present invention is not limited thereto.

[0039] Furthermore, in this embodiment, as shown in Figure 1, one of the upper wing plate 112 and the lower wing plate 114 (here, the upper wing plate 112 is used as an example) is provided with a step portion 112t at its rear end in the longitudinal direction L (corresponding to the end of the rear side S2), and the slider replacement sheet 120 is attached to one of the upper wing plate 112 and the lower wing plate 114 (the upper wing plate 112), with at least a portion of the rear opening 122 in contact with the step portion 112t. That is, a step portion 112t thinner than the base portion 117 is formed at the rear end of one of the upper wing plate 112 and the lower wing plate 114 (the upper wing plate 112) that is connected to the slider replacement sheet 120. Furthermore, when the slider replacement sheet 120 is attached to one of the upper wing plates 112 and the lower wing plate 114 (the upper wing plate 112), the front end of the rear opening portion 122 (corresponding to the end of the front side S1) is connected to the rear end of the base portion 117 (corresponding to the end of the rear side S2) (as shown in Figure 2), and the step portion 112t overlaps with at least a part of the rear opening portion 122 in the vertical direction (corresponding to the thickness direction T). As a result, the step portion 112t supports at least a part of the rear opening portion 122 in the vertical direction (corresponding to the thickness direction T), thereby enhancing the fixing effect of the slider body 110 of the slider replacement sheet 120, and further improving the structural strength of the slider 100. The above description of the step portion 112t also applies to the pair of slide rail portions 124A of the slider replacement sheet 120A shown in Figure 5, and the specific structure and presence or absence of the step portion 112t can be adjusted as needed, and the present invention is not limited thereto.

[0040] Furthermore, in this embodiment, as shown in Figures 1 to 3, the slider 100 will be described in an example where the slider replacement sheet 120 is attached to the upper wing plate 112 of the slider body 110. Here, as shown in Figure 1, the length L1 of the upper wing plate 112 in the longitudinal direction L is smaller than the length L2 of the lower wing plate 114 in the longitudinal direction L, and the rear end of the upper wing plate 112 in the longitudinal direction L (corresponding to the end of the rear side S2) is closer to the front side S1 than the rear end of the lower wing plate 114 in the longitudinal direction L (corresponding to the end of the rear side S2). That is, with respect to the front ends (corresponding to the end of the front side S1) of the upper wing plate 112 and the lower wing plate 114, the upper wing plate 112 is shorter than the lower wing plate 114. Furthermore, as shown in Figure 2, the slider replacement sheet 120 is attached to the upper wing plate 112, with its rear opening 122 abutting against the rear end of the upper wing plate 112. The length L3 of both the slider replacement sheet 120 and the upper wing plate 112 in the longitudinal direction L after attachment corresponds to the length L2 of the lower wing plate 114 (Figure 1). Thus, the slider replacement sheet 120 can be considered as replacing a portion of the upper wing plate 112 of the slider body 110, thus forming a complete slider 100 (the lengths of both the upper and lower sides are approximately equal, and the ends of the front side S1 and the rear side S2 are aligned). The above description of the attachment of the slider replacement sheet 120 also applies to the slider replacement sheet 120A shown in Figure 5, and also applies when the slider replacement sheet 120 is attached to the lower wing plate 114, which is set shorter than the upper wing plate 112, to replace a portion of the lower wing plate 114. It can be adjusted as needed, and the present invention is not limited thereto.

[0041] In this embodiment, the slider body 110 and the slider replacement sheet 120 are manufactured separately and then attached in the manner described above to form a complete slider 100. Preferably, the material of the slider body 110 and the slider replacement sheet 120 includes zinc. By using zinc as the material for the slider body 110 and the slider replacement sheet 120, the structural strength of the slider 100 can be improved, and the material properties for elastic deformation required when the pair of slide rail portions 124 of the slider replacement sheet 120 are attached to one of the upper wing plates 112 and the lower wing plate 114 (upper wing plate 112) can be obtained. Furthermore, when zinc is used for the slider replacement sheet 120, the structural strength can be increased by crimping the slider replacement sheet 120 after it has been attached to the slider body 110, but this is not the only way to do so. In other embodiments not shown, resin material may be used for the slider body 110 and the slider replacement sheet 120, and the pair of slide rail portions 124 of the slider replacement sheet 120 may have material properties that allow for the elastic deformation required during installation. Furthermore, when resin material is used for the slider replacement sheet 120, the slider replacement sheet 120 is attached to the slider body 110 by the elastic force of the resin material (snap-type attachment), eliminating the need to crimp the slider replacement sheet 120.

[0042] As can be seen from this, by manufacturing the slider replacement sheet 120 using a material with elastic deformation properties (such as zinc or resin), regardless of whether the pair of slide rail sections 124 are inclined and extended or whether a first notch groove 124n1 is provided, as the pair of slide rail sections 124 slide forward S1 along the pair of slide groove sections 112g, both slide rail sections 124 are pressed against the opposing side edges 112s, and deform in a reverse direction from the inside to the outside through the elastic deformation properties of the material. As a result, as the pair of slide rail sections 124 slide forward S1, the inner surface in the width direction W can be made to adhere more closely to the contours of the opposing side edges 112s on which the slide groove sections 112g are provided, and the opposing side edges 112s can be gripped by elastic return. This makes the sliding of the slider replacement sheet 120 smoother, enhances the gripping effect of the pair of slide rail sections 124, and thereby improves the structural strength of the slider 100. The above description of the material for the slider replacement sheet 120 also applies to the slider replacement sheet 120A shown in Figure 5. However, the slider body 110 and the slider replacement sheet 120 are not limited to the above materials, and the slider body 110 and the slider replacement sheet 120 can be manufactured using different materials. The present invention does not limit the material and fixing method of the slider body 110 and the slider replacement sheet 120, and can be adjusted as needed.

[0043] Referring to Figures 6 to 8, in another embodiment of the present invention, the slider 100B includes a slider body 110 and a slider replacement sheet 120B. The slider replacement sheet 120B differs from the slider replacement sheet 120 shown in Figures 1 to 4C and the slider replacement sheet 120A shown in Figure 5, but is similarly attachable to the slider body 110. The description of the slider body 110 (specific structure, material, etc.) is not detailed here and should be referred to above. Furthermore, the slider replacement sheet 120B includes a rear opening 122 and a pair of slide rail sections 124A that extend from the rear opening 122 to the front side S1 in the longitudinal direction L and are separated from each other. Of these, the slider replacement sheet 120B is attached to the upper wing plate 112 by the pair of slide rail sections 124A sliding horizontally relative to the slider body 110 along a pair of slide grooves 112g of the slider body 110 (a change in state as shown in Figures 1 and 2), and becomes part of the upper wing plate 112. The rear opening portion 122 and the pair of slide rail portions 124A (specific structure, material, mounting means, etc.) are described above and will not be detailed here. In this invention, the slider replacement sheet 120B employs the pair of slide rail portions 124A shown in Figure 5 (having a first notch groove 124n1 and a second notch groove 124n2, forming a T-shaped notch groove), but in other embodiments not shown, the slider replacement sheet 120B may also employ the pair of slide rail portions 124 shown in Figures 1 to 4 (which are inclined and have a first notch groove). The present invention is not limited thereto and can be adjusted as needed.

[0044] Specifically, in this embodiment, as shown in Figures 6 to 8, the slider replacement sheet 120B further includes a projection 128 installed on the upper surface of the rear opening 122. When the slider replacement sheet 120B is attached to the upper wing plate 112 (attached by the pair of slide rails 124A sliding horizontally along the pair of slide grooves 112g relative to the slider body 110 as described above), the projection 128 faces the rear open end 116a of the handle mounting column 116 installed on the upper surface of the upper wing plate 112 (i.e., the end that forms the cantilever) and forms a retaining wall located on the rear side of the handle mounting column 116 and the upper wing plate 112 (shown in Figures 6 and 7). In other words, as shown in Figures 6 and 7, the pull handle mounting post 116 is positioned with a gap in the thickness direction T from the upper surface of the upper wing plate 112, and the rear side of the pull handle mounting post 116 has an open end 116a that forms a cantilever, and the gap in the thickness direction T between the open end 116a and the upper wing plate 112 allows the pull handle (not shown) to pass through and be attached. When the slider replacement sheet 120B is attached to the upper wing plate 112, the projection 128 provided on the upper surface of the rear opening 122 of the slider replacement sheet 120B can almost completely close the gap between the open end 116a and the upper wing plate 112 (it is not limited to completely closing it, it is sufficient that the gap between the projection 128 and the open end 116a after the slider replacement sheet 120B is attached is smaller than the dimension through which the pull handle's mounting ring can pass), thereby preventing the attached pull handle from sliding off the open end 116a. This eliminates the need for a stopper to close the gap between the open end 116a of the handle mounting column 116 and the upper wing plate 112.

[0045] Furthermore, in this embodiment, as shown in Figures 6 to 8, the projection 128 includes an inclined portion 128a that extends inclined toward the rear from the front end of the rear opening portion 122, and a parallel portion 128b that extends from the inclined portion 128a toward the rear end of the rear opening portion 122. The inclined portion 128a gradually rises toward the rear side S2 from the front end of the rear opening portion 122 (i.e., it inclins toward upward). In addition, the inclined portion 128a can further extend toward the pair of slide rail portions 124A from the front end of the rear opening portion 122. That is, the inclined portion 128a is configured in a substantially Y shape. Furthermore, the parallel section 128b is at approximately the same height as the rear end of the inclined section 128a, has a flat upper surface parallel to the upper wing plate 112, and the open end 116a of the handle mounting column 116 abuts against it (however, the open end 116a is not necessarily limited to contacting the upper surface of the parallel section 128b and can be adjusted for reasons such as the actual assembly result and manufacturing tolerances). Moreover, the distance t1 in the thickness direction T between the parallel section 128b and the open end 116a of the handle mounting column 116 is smaller than the distance t2 in the thickness direction T between the inclined section 128a and the handle mounting column 116. As a result, the slider replacement sheet 120B, on which the projection 128 is provided by the inclination setting of the inclined section 128a, can be easily attached to the upper wing plate 112 from the rear side S2 to the front side S1, and the projection 128 does not interfere with structures such as the handle mounting column 116 during the attachment process. Furthermore, the placement of the projection on the parallel section 128b forms a retaining wall at the open end 116a of the handle mounting column 116, thereby substantially closing (but not limited to completely closing) the gap between the open end 116a and the upper wing plate 112. However, in other embodiments not shown, the inclined portion 128a of the projection 128 may be set to gradually decrease in height (i.e., inclined downward) from the front end of the rear opening 122 toward the rear side S2. The present invention does not limit the specific structure and placement of the projection 128 and is adjustable as needed.

[0046] Furthermore, in this embodiment, as shown in Figure 7, in the front-rear direction of the projection 128, the front end of the parallel portion 128b is located in front of the front end of the open end 116a of the handle mounting column 116. That is, the inclined portion 128a begins to incline from a position located in front of the front end of the open end 116a, and the entire open end 116a corresponds to the parallel portion 128b. As an example, the maximum distance between the parallel portion 128b and the open end 116a of the handle mounting column 116 (i.e., the maximum value of the spacing t1) is greater than the axial width of the handle mounting ring. As a result, when the handle mounting ring is attached to the handle mounting column 116, the handle mounting ring is supported by the open end 116a of the handle mounting column 116 and can contact the parallel portion 128b. When a tensile force is applied to the handle, the tensile force is not received by the slider replacement sheet 120, but by the handle mounting column 116, which has higher structural strength, contributing to an improvement in overall structural strength. However, the present invention does not limit the specific structure or presence or absence of the parallel portion 128b of the projection 128, and can be adjusted as needed.

[0047] In summary, in the slider of the present invention, the slider replacement sheet includes a pair of slide rail sections that extend forward from the rear opening in the longitudinal direction and are separated from each other, and a pair of slide groove sections that extend in the longitudinal direction are provided correspondingly on the opposing side edges in the width direction of one of the upper and lower wing plates of the slider body. The slider replacement sheet is attached to one of the upper and lower wing plates by the pair of slide rail sections sliding horizontally along the pair of slide groove sections relative to the slider body, and becomes a part of one of the upper and lower wing plates. Thus, the slider replacement sheet can be easily attached not only by the pair of separated slide rail sections sliding horizontally along the pair of slide groove sections, but also by the pair of slide rail sections clamping the opposing side edges of one of the upper and lower wing plates. Preferably, the pair of slide rail sections extend inclined toward the front, and the distance in the width direction gradually increases toward the front, thereby further increasing the clamping force. Furthermore, each of the pair of slide rail sections extends in the width direction and has a first notch groove located on the inside of the slide rail section. By configuring the slide rail section to be deformable from the inside to the outside via the first notch groove, the assembly operability of the slider can be further improved. As a result, the slider of the present invention has good assembly operability and structural strength.

[0048] Finally, the embodiments described above are used solely to illustrate the technical concepts of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the embodiments described above, those skilled in the art should understand that it is possible to modify the technical concepts described in the embodiments above or to substitute some or all of their technical features with equivalent ones. Such modifications or substitutions do not mean that the essence of the corresponding technical concepts deviates from the scope of the technical concepts of the embodiments of the present invention. [Industrial applicability]

[0049] The slider of the present invention is applicable to technologies in the field of fasteners. [Explanation of Symbols]

[0050] 100, 100A, 100B sliders 110 Slider body 112 Upper wing plate 112g sliding groove 112h hook 112r Fitting recess 112s side edge 112t Step section 112w slope wall 113 Guidepost 114 Lower wing plate 115 Element Passage 116 Handle mounting post 116a open end 117 Base 118 Flange section 120, 120A, 120B Slider Replacement Sheet 122 Rear opening 124, 124A Slide rail section 124n1 First notch groove 124n2 Second notch groove 124p Mating protrusion 124r convex rib 126 snap holes 128 Protrusion 128a Slope 128b Parallel part D, D1, D2 distance L (Length direction) L1, L2, L3 Length P1 front end P2 rear end S1 front side S2 rear side T thickness direction t1, t2 interval W (width direction)

Claims

1. A slider body (110) including an upper wing plate (112) and a lower wing plate (114) that are installed facing each other, A slider replacement sheet (120, 120A, 120B) including a rear opening (122) and a pair of slide rail sections (124, 124A) that extend from the rear opening (122) in the longitudinal direction (L) toward the front side (S1) and are separated from each other, Equipped with, On one of the upper wing plate (112) and the lower wing plate (114), opposite side edges (112s) in the width direction (W) are provided with a pair of sliding grooves (112g) that extend in the length direction (L). The slider replacement sheets (120, 120A, 120B) are characterized in that a pair of slide rail portions (124, 124A) slide horizontally relative to the slider body (110) along a pair of slide groove portions (112g), thereby being attached to one of the upper wing plates (112) and the lower wing plates (114), and forming a part of one of the upper wing plates (112) and the lower wing plates (114).

2. The pair of slide rail sections (124) extend inclined in the longitudinal direction (L) from the rear opening (122) toward the front side (S1), and the distance between the pair of slide rail sections (124) in the width direction (W) gradually increases from the rear opening (122) toward the front side (S1). The slider (100) according to claim 1, characterized in that, with the slider replacement sheet (120) attached to one of the upper wing plate (112) and the lower wing plate (114), the pair of slide rail portions (124) clamp the opposing side edges (112s) of one of the upper wing plate (112) and the lower wing plate (114) that are provided with the pair of slide groove portions (112g).

3. Each of the pair of slide rail sections (124, 124A) has a first notched groove (124n1) extending in the width direction (W), The slider (100, 100A, 100B) according to claim 1 or 2, characterized in that the first notch groove (124n1) is located inside the slide rail portion (124, 124A), and the slide rail portion (124, 124A) is configured to be deformable from the inside to the outside via the first notch groove (124n1).

4. The slider (100, 100A, 100B) according to claim 3, characterized in that the first notch groove (124n1) is installed in the slide rail portion (124, 124A) at a position closer to the rear end (P2) than to the front end (P1) in the longitudinal direction (L).

5. Each of the pair of slide rail portions (124A) has a second notched groove (124n2) extending in the longitudinal direction (L), and The slider (100A, 100B) according to claim 3, characterized in that the second notch groove (124n2) is located in the center of the slide rail portion (124A) and connected to the first notch groove (124n1), and the slide rail portion (124A) is configured to be deformable from the inside to the outside via the first notch groove (124n1) and the second notch groove (124n2).

6. Each of the pair of slide rail sections (124, 124A) has a convex rib (124r) extending along the longitudinal direction (L), The slider (100, 100A, 100B) according to claim 3, characterized in that the slider replacement sheet (120, 120A, 120B) is attached to one of the upper wing plate (112) and the lower wing plate (114), and the convex rib (124r) is fitted into the slide groove (112g) along the length direction (L).

7. The slider (100, 100A, 100B) according to claim 6, characterized in that, with the slider replacement sheet (120, 120A, 120B) attached to one of the upper wing plate (112) and the lower wing plate (114), the upper and lower surfaces of the convex rib (124r) are covered by the slide groove portion (112g) along the length direction (L).

8. The slider (100, 100A, 100B) according to claim 1 or 2, characterized in that a pair of slide rail portions (124, 124A) each have a fitting projection (124p) protruding inward from the inner surface at the front end (P1) in the longitudinal direction (L), and the fitting projection (124p) slides horizontally along a pair of slide groove portions (112g) to be attached to one of the upper wing plate (112) and the lower wing plate (114).

9. Each of the pair of slide grooves (112g) has a fitting recess (112r) recessed inward from the outer surface at its front end in the longitudinal direction (L), and the depth of the fitting recess (112r) is greater than the depth of the slide groove (112g). The slider (100, 100A, 100B) according to claim 8, characterized in that the slider replacement sheet (120, 120A, 120B) is fixed to one of the upper wing plate (112) and the lower wing plate (114) by the fitting projection (124p) of the slide rail portion (124, 124A) fitting into the fitting recess (112r) of the slide groove portion (112g).

10. The rear opening portion (122) of the slider replacement sheet (120, 120A, 120B) is provided with a snap hole (126) at the rear end in the longitudinal direction (L). One of the upper wing plate (112) and the lower wing plate (114) is provided with a hook (112h) at its rear end in the longitudinal direction (L), and The slider (100, 100A, 100B) according to claim 1 or 2, characterized in that the slider replacement sheet (120, 120A, 120B) is fixed to one of the upper wing plate (112) and the lower wing plate (114) by the snap hole (126) fitting into the hook (112h).

11. One of the upper wing plate (112) and the lower wing plate (114) is provided with a step portion (112t) at its rear end in the longitudinal direction (L), and The slider (100, 100A, 100B) according to claim 1 or 2 is characterized in that the slider replacement sheet (120, 120A, 120B) is attached to one of the upper wing plate (112) and the lower wing plate (114), and at least a part of the rear opening (122) is brought into contact with the step portion (112t).

12. The upper wing plate (112) has a length (L1) in the longitudinal direction (L) that is smaller than the length (L2) of the lower wing plate (114), and the rear end of the upper wing plate (112) in the longitudinal direction (L) is positioned closer to the front side (S1) than the rear end of the lower wing plate (114) in the longitudinal direction (L). The slider replacement sheets (120, 120A, 120B) are attached to the upper wing plate (112), and the rear opening portion (122) is brought into contact with the rear end of the upper wing plate (112), and The slider (100, 100A, 100B) according to claim 1 or 2, characterized in that the length (L3) in the longitudinal direction (L) of both the slider replacement sheet (120, 120A, 120B) and the upper wing plate (112) after installation corresponds to the length (L2) of the lower wing plate (114).

13. The slider replacement sheet (120B) further comprises a projection (128) installed on the upper surface of the rear opening (122), The slider (100B) according to claim 1 or 2, characterized in that, with the slider replacement sheet (120B) attached to the upper wing plate (112), the projection (128) faces the rear open end (116a) of the handle mounting column (116) installed on the upper surface of the upper wing plate (112), and forms a retaining wall located on the rear side of the handle mounting column (116) and the upper wing plate (112).

14. The projection (128) comprises an inclined portion (128a) that extends inclined backward from the front end of the rear opening portion (122), and a parallel portion (128b) that extends from the inclined portion (128a) to the rear end of the rear opening portion (122), and The slider (100B) according to 13, characterized in that the distance (t1) in the thickness direction (T) between the parallel portion (128b) and the open end (116a) of the handle mounting column (116) is smaller than the distance (t2) in the thickness direction (T) between the inclined portion (128a) and the handle mounting column (116).

15. The slider (100B) according to claim 14, characterized in that, in the front-rear direction of the projection (128), the front end of the parallel portion (128b) is located in front of the front end of the open end (116a) of the handle mounting column (116).

16. The slider (100, 100A, 100B) according to claim 1 or 2 is characterized in that the material of the slider body (110) and the slider replacement sheet (120, 120A, 120B) contains zinc.

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