Slider device, method for manufacturing slider device, and mounting member

Abstract

A slider device (6, 7) for a slide fastener includes a slider body (8) and a mounting member (9). The mounting member (9) includes first and second arm parts (31, 32) that sandwich a proximal end portion (24a) of a pull attachment column (24) on a first blade plate (21) of the slider body (8). The first and second arm parts (31, 32) include first and second lock protrusions (61, 62), respectively. The first lock protrusion (61) is provided so as to be offset closer to a connection part (35) than a distal end portion (31q) of the first arm part (31), and the second lock protrusion (62) is provided so as to be offset closer to the connection part (35) than a distal end portion (32q) of the second arm part (32). First and second guide surfaces (81, 82) are disposed to face each other so as to define a guide path (85) through which the proximal end portion (24a) of the pull attachment column (24) moves in the process of mounting the mounting member (9) on the slider body (8).

Description

Slider device, manufacturing method of slider device, and mounting member

[0001] The present disclosure relates to a slider device, a method for manufacturing a slider device, and a mounting member.

[0002] As disclosed in Patent Documents 1 to 3, it is known to attach a mounting member to the slider body to enhance the functionality of the slider.

[0003] Canadian Patent Application Publication No. 2419659 Chinese Utility Model No. 218008498 U.S. Pat. No. 10,492,572

[0004] Priority is given to ensuring free or intended movement (e.g., pivoting) of the pull tab by avoiding interference between the pull tab attached to the pull tab mounting post of the slider body and the mounting member (see Patent Documents 1 to 3). However, in this case, it is not easy to smoothly perform the work of attaching the mounting member to the slider, and similarly, it is not easy to automate this process.

[0005] With respect to the above-mentioned non-limiting exemplary problem, it would be significant to provide a mounting member that can facilitate smooth mounting of the slider body to the pull tab mounting post or facilitate automation of such mounting.

[0006] A slider device according to one aspect of the present disclosure includes a slider body including a first wing, a second wing, a connecting post connecting the first wing and the second wing, and a pull-tab mounting post having a base end connected to the first wing; and an attachment member attached to the slider body, the attachment member including first and second arms sandwiching the base end of the pull-tab mounting post on the first wing, and a connecting portion connecting at least the first and second arms, the first and second arms having first and second opposing surfaces facing each other, the first arm including a first locking protrusion protruding from the first opposing surface toward the second arm to prevent the base end of the pull-tab mounting post inserted between the first and second arms from coming off, and the second arm including a second locking protrusion protruding from the second opposing surface to prevent the base end of the pull-tab mounting post inserted between the first and second arms from coming off. A slider device for a slide fastener comprising an attachment member including a second locking projection protruding from an opposing surface toward a first arm portion, wherein the first locking projection is offset on the first opposing surface toward the connecting portion relative to the tip of the first arm portion, the first opposing surface including a first guide surface positioned farther from the connecting portion than the first locking projection, the second locking projection is offset on the second opposing surface toward the connecting portion relative to the tip of the second arm portion, the second opposing surface including a second guide surface positioned farther from the connecting portion than the second locking projection, and the first and second guide surfaces are arranged opposite each other to define a guide path along which the base end of the pull tab mounting post moves during the attachment process of the attachment member to the slider body.

[0007] An attachment member according to another aspect of the present disclosure is an attachment member that is attached separately from a pull tab to a slider body for a slide fastener, the attachment member including a first wing, a second wing, a connecting post connecting the first wing and the second wing, and a pull tab mounting post having a base end connected to the first wing, the attachment member including first and second arms that sandwich the base end of the pull tab mounting post on the first wing, the first and second arms having first and second opposing surfaces that face each other, the first arm including a first locking projection that projects from the first opposing surface toward the second arm to prevent the base end of the pull tab mounting post inserted between the first and second arms from coming off, and the second arm including a locking projection that projects from the second opposing surface toward the first arm to prevent the base end of the pull tab mounting post inserted between the first and second arms from coming off. the first locking projection is provided on the first opposing surface offset toward the connecting portion relative to the tip of the first arm, the first opposing surface including a first guide surface positioned farther from the connecting portion than the first locking projection; the second locking projection is provided on the second opposing surface offset toward the connecting portion relative to the tip of the second arm, the second opposing surface including a second guide surface positioned farther from the connecting portion than the second locking projection; and the first and second guide surfaces are arranged opposite each other to define a guide path along which the base end of the pull-tab mounting post moves during the process of attaching the attachment member to the slider body.

[0008] A method for manufacturing a slider device according to yet another aspect of the present disclosure is a method for manufacturing a slider device for a slide fastener, comprising: a slider body including a first wing, a second wing, a connecting post connecting the first wing and the second wing, and a pull tab mounting post having a base end connected to the first wing; and an attachment member attached to the slider body, the attachment member including first and second arms sandwiching the base end of the pull tab mounting post on the first wing, and a connecting portion connecting at least the first and second arms, the first and second arms respectively having first and second opposing surfaces facing each other, the first arm including a first locking protrusion protruding from the first opposing surface towards the second arm, and the second arm including a second locking protrusion protruding from the second opposing surface towards the first arm; and a second step following the first step of moving the base end of the pull-tab mounting post of the slider body over the first and second locking projections toward the connecting portion of the mounting member, wherein the first step includes inserting the base end of the pull-tab mounting post between a first guide surface on the first opposing surface of the first arm portion and a second guide surface on the second opposing surface of the second arm portion, and sliding the base end of the pull-tab mounting post on at least one of the first and second guide surfaces, wherein the first guide surface is formed by the first locking projection being offset on the first opposing surface toward the connecting portion compared to the tip of the first arm portion, and the second guide surface is formed by the second locking projection being offset on the second opposing surface toward the connecting portion compared to the tip of the second arm portion.

[0009] Regarding the above-described various aspects, the following features may be applied singly or in any combination. The mounting member may be attached to the slider body separately from the pull tab. The distance between the first and second guide surfaces may be set so that the base end of the pull tab mounting post slides on both the first and second guide surfaces during the process of attaching the mounting member to the slider body. Additionally or alternatively, the first and second guide surfaces may be oriented parallel to each other.

[0010] The first arm may have an inclined surface that approaches the first blade as it moves away from the connecting portion, thereby reducing the thickness of the first arm, and / or the second arm may have an inclined surface that approaches the first blade as it moves away from the connecting portion, thereby reducing the thickness of the second arm.

[0011] The first arm and / or the second arm may be a flat plate-like portion disposed on the first blade.

[0012] The first locking projection may have a first inclined guide surface that approaches the second locking projection as it extends in a direction away from the first guide surface and toward the connecting portion, and the second locking projection may have a second inclined guide surface that approaches the first locking projection as it extends in a direction away from the second guide surface and toward the connecting portion, and the distance between the first and second inclined guide surfaces may gradually decrease toward the connecting portion.

[0013] The angle between the plane on which the first guide surface exists and the first inclined guide surface may be an acute angle within 5° to 60°; and / or the angle between the plane on which the second guide surface exists and the second inclined guide surface may be an acute angle within 5° to 60°.

[0014] The length of the first guide surface along a predetermined direction from the guide path toward the connecting portion is greater than the length of the first guide inclined surface along the predetermined direction; and / or the length of the second guide surface along the predetermined direction is greater than the length of the second guide inclined surface along the predetermined direction.

[0015] The first opposing surface may have a first contact surface that contacts a first side surface of the base end of the pull-tab mounting post when the mounting member is attached to the slider body, and the second opposing surface may have a second contact surface that contacts a second side surface of the base end of the pull-tab mounting post when the mounting member is attached to the slider body.

[0016] The length of the first guide surface along a predetermined direction from the guide path toward the connecting portion is smaller than the length of the first contact surface along the predetermined direction, and the length of the second guide surface along the predetermined direction is smaller than the length of the second contact surface along the predetermined direction. Additionally or alternatively, the first guide surface may be coplanar with the first contact surface or form an acute angle of 5° or less with a plane in which the first contact surface lies. The second guide surface may be coplanar with the second contact surface or form an acute angle of 5° or less with a plane in which the second contact surface lies.

[0017] The mounting member may include third and fourth arms each connected to the connecting portion and disposed on the second vane, and the third and fourth arms may be shaped as mirror images of the first and second arms, respectively.

[0018] The connecting portion may have a first portion connecting the first and second arms, a second portion connecting the third and fourth arms, and a third portion connecting the first and second portions. A pair of flat plate portions sandwiching a front end portion of the connecting post of the slider body may be connected to the third portion.

[0019] The first guide surface may extend between a first chamfered edge between the rear surface of the first arm and the first opposing surface and the first locking projection. The second guide surface may extend between a second chamfered edge between the rear surface of the second arm and the second opposing surface and the second locking projection. The first and second guide surfaces may be oriented parallel to or slightly inclined with respect to a centerline of the mounting member.

[0020] According to one aspect of the present disclosure, it is possible to provide an attachment member that can facilitate smooth attachment of a slider body to a pull-tab attachment post or facilitate automation of such attachment.

[0021] FIG. 1 is a schematic partial top view of a slide fastener according to one embodiment of the present disclosure. FIG. 2 is a schematic view showing first and second slider devices positioned apart from each other on a fastener chain in an uncoupled state. FIG. 3 is a schematic view showing first and second slider devices positioned adjacent to each other on a fastener chain in a coupled state. FIG. 4 is a schematic perspective view of a slider device, with the pull tab omitted. FIG. 5 is a schematic top view of a slider device. FIG. 6 is a schematic bottom view of a slider device. FIG. 7 is a schematic cross-sectional view of a slider device, showing a cross-section of a connecting portion between a connecting post of a slider body and an attachment member. FIG. 8 is a schematic view showing a separated state before an attachment member is attached to a base end of a pull-tab mounting post of a slider body. FIG. 9 is a schematic view showing an attachment state where an attachment member is attached to a base end of a pull-tab mounting post of a slider body. FIG. 10 is a schematic view showing a process of attaching an attachment member to a base end of a pull-tab mounting post of a slider body. FIG. 11 is a schematic view showing a process of attaching an attachment member to a base end of a pull-tab mounting post of a slider body. FIG. 12 is a schematic view showing a process of attaching an attachment member to a base end of a pull-tab mounting post of a slider body. 21. A top view of the mounting member. A bottom view of the mounting member. A rear view of the mounting member. A front view of the mounting member. A side view of the mounting member. A top view of a slider device according to a modified example. A bottom view of the mounting member according to a modified example. A schematic top view of a slide fastener according to a modified example, in which the mounting member is configured to prevent the slider body from getting caught in the fabric. A schematic side view of the mounting member shown in FIG. 21. A schematic view showing a modified example of the mounting member, in which the first and second arms have first and second flange portions arranged on both the left and right sides of the first blade of the slider body, and the third and fourth arms have third and fourth flange portions arranged on both the left and right sides of the second blade of the slider body.

[0022] Various embodiments and features will be described below with reference to the drawings. Those skilled in the art will be able to combine the various embodiments and / or features without excessive explanation and will be able to understand the synergistic effects of such combinations. Duplicate descriptions between embodiments will be omitted in principle. The reference drawings are primarily intended to describe the invention and are simplified for ease of illustration. Each feature is not only applicable to the alignment conversion device and method disclosed in this application, but is also understood as a universal feature applicable to various other alignment conversion devices and methods not disclosed herein.

[0023] First, the slide fastener 1 will be described with reference to Figures 1 to 12. Figure 1 is a schematic partial top view of the slide fastener 1. Figure 2 shows the slider devices 6 and 7 positioned apart from each other on the fastener chain 2 in an uncoupled state. Figure 3 shows the slider devices 6 and 7 positioned adjacent to each other on the fastener chain 2 in a coupled state. Note that the fastener chain is omitted from Figures 2 and 3 for simplicity of illustration. Figure 4 is a schematic perspective view of the slider device 6, with the pull tab 10 omitted. Figure 5 is a schematic top view of the slider device 6. Figure 6 is a schematic bottom view of the slider device 6. Figure 7 is a schematic cross-sectional view of the slider device 6, showing the cross-section of the connecting post 23 of the slider body 8 and the connecting portion 35 of the mounting member 9. Figure 8 is a schematic view showing the separated state before the mounting member 9 is attached to the base end 24a of the pull tab mounting post 24 of the slider body 8. Fig. 9 is a schematic diagram showing an attachment state in which the attachment member 9 is attached to the base end 24a of the pull-tab attachment post 24 of the slider body 8. Fig. 10 is a schematic diagram showing the process of attaching the attachment member 9 to the base end 24a of the pull-tab attachment post 24 of the slider body 8. Fig. 11 is a schematic diagram showing the process of attaching the attachment member 9 to the base end 24a of the pull-tab attachment post 24 of the slider body 8. Fig. 12 is a schematic diagram showing the process of attaching the attachment member 9 to the base end 24a of the pull-tab attachment post 24 of the slider body 8.

[0024] The slide fastener 1 includes a flexible, long fastener chain 2 and slider devices 6, 7 attached to the fastener chain 2 so as to be movable along the center line CL of the fastener chain 2. The fastener chain 2 includes left and right fastener stringers 3m, 3n, each of which includes a fastener tape 4m, 4n and a fastener element 5m, 5n. The fastener tapes 4m, 4n include a base fabric made of a woven fabric, a knitted fabric, or a mixture thereof, and may optionally include a resin water-stopping layer formed on the base fabric. The fastener elements 5m, 5n are formed by spirally wound monofilament wires, with engaging heads formed on the same line at a predetermined pitch outside the tape plane of the fastener tapes 4m, 4n, but are not limited to this. Alternatively, resin or metal elements may be arranged at a fixed pitch (with a gap between adjacent elements) on the opposing side edges of the fastener tapes 4m, 4n. The resin elements may be fixed to the fastener tapes 4m, 4n by injection molding. The metal elements can be fixed to the fastener tapes 4m, 4n by crimping.

[0025] A coordinate C6 in Fig. 1 is set for the slider device 6, and a coordinate C7 in Fig. 1 is set for the slider device 7. F indicates the front, B indicates the rear, L indicates the left, and R indicates the right. The up-down direction is perpendicular to the front-rear and left-right directions. In each of the coordinates C6 and C7, the left-right direction is set with respect to each individual slider device. The fastener chain 2 is closed by the forward movement of the slider devices 6 and 7 (i.e., the left and right fastener elements 5m and 5n or their engaging heads are alternately engaged), and the fastener chain 2 is opened by the backward movement of each of the slider devices 6 and 7 (i.e., the alternate engagement of the left and right fastener elements 5m and 5n or their engaging heads is released).

[0026] The slider devices 6, 7 are identical in structure and size. Each slider device 6, 7 has a slider body 8 and a mounting member 9 attached to the slider body 8, and optionally also has a pull tab 10 (see FIGS. 2 and 3). For both slider devices 6, 7, the slider body 8 is identical in structure and size, and the mounting member 9 is identical in structure and size.

[0027] The slider body 8 may be a metal part manufactured by die-casting or a plastic product manufactured by injection molding of a plastic material. The slider body 8 has sufficient mechanical strength to guide the fastener elements 5m, 5n. The mounting member 9 is typically a plastic, elastomer, or rubber product manufactured by injection molding of a plastic, elastomer, or rubber material. The mounting member 9 is typically attached to the slider body 8 via partial elastic deformation of the mounting member 9 (e.g., elastic deformation of at least the first and second arm portions described below). Preferably, the mounting member 9 has sufficient mechanical strength so that it does not easily fall off the slider body 8 after being attached thereto. In some embodiments, the mounting member 9 cannot be removed from the slider body 8 unless it is destroyed.

[0028] The attachment members 9 are attached to the slider body 8 separately from the pull tab 10 and have different functions from the pull tab 10 (such as a function for easily locking the attachment members 9 together and a function for preventing the slider body 8 from pinching fabric). Of course, a configuration in which the attachment members 9 do not have a specific function and simply function as an accessory part is also conceivable. In the illustrated example, each attachment member 9 has a function for easily locking the attachment members 9 together. When the slider devices 6 and 7 are positioned adjacent to each other on the fastener chain 2, the male engagement portions 11 of the attachment members 9 of the slider devices 6 and 7 are engaged with each other, thereby placing the slider devices 6 and 7 in a simply locked state. Even if the slider device 6 moves rearward away from the slider device 7, the slider device 7 is also dragged along, and therefore no opening is formed between the slider devices 6 and 7. The same applies when the slider device 7 moves away from the slider device 6.

[0029] When two mounting members 9 are individually mounted to two slider bodies 8 that are oriented in different directions on the fastener chain 2, the male engaging portion 11 of one mounting member 9 is oriented to protrude downward, and the male engaging portion 11 of the other mounting member 9 is oriented to protrude upward, and both male engaging portions 11 are engageable. This reduces the burden of designing and manufacturing mounting members with different structures for slider bodies 8 that are oriented in opposite directions.

[0030] The slider body 8 includes a first blade 21, a second blade 22, a connecting post 23 connecting the first blade 21 and the second blade 22, a pull tab mounting post 24 having a base end 24a connected to the first blade 21, and optionally left and right flanges 25 provided on both the left and right sides of the first blade 21. The first blade 21 and the second blade 22 are arranged opposite each other with a gap in the vertical direction. The first blade 21 has an outer surface 21a and an inner surface 21b. The second blade 22 has an outer surface 22a and an inner surface 22b. The inner surface 21b of the first blade 21 and the inner surface 22b of the second blade 22 are arranged opposite each other and are typically oriented parallel to each other. The connecting post 23 connects the inner surface 21b of the first blade 21 and the inner surface 22b of the second blade 22. The connecting post 23 has a cross-sectional shape that tapers toward the rear. The first vane 21, the second vane 22, and the connecting post 23 define a Y-shaped element passage for the left and right fastener elements 5m, 5n, and optional left and right flanges 25 prevent the fastener elements 5m, 5n from derailing from the element passage. Note that the first vane may also be called the upper vane and the second vane may also be called the lower vane, or vice versa.

[0031] The pull-tab mounting post 24 has the base end 24a, an opposite end 24b opposite the base end 24a, and an intermediate portion 24c extending along the outer surface 21a of the first wing 21 between the base end 24a and the opposite end 24b. The pull-tab mounting post 24 is typically connected to the first wing 21 as a cantilever beam as shown in the figure, but this is not limited thereto; the opposite end 24b can also be connected without leaving a gap on the outer surface 21a of the first wing 21. A mounting portion (typically a rod-shaped or arc-shaped portion) of the pull tab 10 extending in the left-right direction is inserted between the pull-tab mounting post 24 and the first wing 21. The range of motion of the pull tab 10 between the pull-tab mounting post 24 (particularly its intermediate portion 24c) and the first wing 21 is restricted by the mounting member 9 (first and second arm portions 31 and 32, described below). However, as described below, this tradeoff is compensated for by benefits.

[0032] The mounting member 9 has first and second arms 31, 32 that sandwich the base end 24a of the pull-tab mounting post 24 on the first blade 21, third and fourth arms 33, 34 that are disposed on the second blade 22, and a connecting portion 35 that connects the first and second arms 31, 32 and the third and fourth arms 33, 34. Typically, the first and second arms 31, 32 are flat plate-like portions that are disposed on the first blade 21, as are the third and fourth arms 33, 34. When the mounting member 9 is attached to the slider body 8, the connecting portion 35 is located in front of the slider body 8 (see boundary L1 in FIG. 2 ), and therefore may alternatively be referred to as a front portion. The connecting portion 35 has a rear surface 35j (see FIG. 7) facing the connecting post 23 of the slider body 8, and this rear surface 35j extends in the vertical direction at least between a position forward of the first blade 21 and a position forward of the second blade 22. Typically, the rear surface 35j is also located forward of the base end portion 24a of the pull tab mounting post 24, and may optionally also be located forward of the base end portion of another pull tab mounting post provided on the second blade 22.

[0033] The first arm 31 and the second arm 32 may be shaped as mirror images. Similarly, the third arm 33 and the fourth arm 34 may be shaped as mirror images. Advantageously, the third and fourth arms 33, 34 are shaped as mirror images of the first and second arms 31, 32, respectively. This allows the same mounting member to be used in a configuration in which another pull tab mounting post is connected to the second blade 22 in addition to or instead of the pull tab mounting post 24. Furthermore, as shown in the illustrated example, the mounting member can be reliably attached to slider bodies 8 in different orientations.

[0034] One advantage of providing the third and fourth arms 33, 34 is that the slider body 8 is sandwiched (or press-fitted) between the first arm 31 and the third arm 33 and / or sandwiched (or press-fitted) between the second arm 32 and the fourth arm 34, thereby restricting relative displacement between the slider body 8 and the mounting member 9. Preferably, the first and second arms 31, 32 contact the outer surface 21a of the first blade 21 with their flat contact surfaces, leaving no gap between them. Similarly, the third and fourth arms 33, 34 contact the outer surface 22a of the second blade 22 with their flat contact surfaces, leaving no gap between them. However, the attachment of the mounting member 9 to the slider body 8 is not necessarily limited to the above-described embodiment, and a configuration in which the third and fourth arms 33, 34 are omitted is also contemplated. For example, the mounting member 9 is mounted on the slider body 8 by press-fitting a first blade between a flat plate portion 36 and the arm portions 31 and 32 (to be described later).

[0035] The first to fourth arms 31 to 34 each have a base end 31p, 32p, 33p, or 34p connected to the connecting portion 35 and a tip end 31q, 32q, 33q, or 34q located away from the connecting portion 35, and typically extend linearly between these ends. The first and second arms 31 and 32 each have inclined surfaces 31k and 32k that approach the first blade 21 and reduce the thickness of the arm as they move away from the connecting portion 35. The inclined surfaces 31k and 32k are on the upper surfaces of the first and second arms 31 and 32, respectively. Similarly, the third and fourth arms 33 and 34 each have inclined surfaces 33k and 34k that approach the second blade 22 and reduce the thickness of the arm as they move away from the connecting portion 35. The inclined surfaces 33k and 34k are on the lower surfaces of the third and fourth arms 33 and 34, respectively. This reduces the degree to which the range of motion of the pull tab 10 is restricted by the mounting member 9, even if each arm extends long from the connecting portion 35 and interferes with the movable range of the pull tab 10 held on the pull tab mounting post 24. The inclined surfaces 31k, 32k, 33k, and 34k start to incline near the base end 24a of the pull tab mounting post 24 and continue to incline until they reach the tip ends 31q, 32q, 33q, and 34q. The acute angles that the inclined surfaces 31k, 32k, 33k, and 34k form with respect to a plane perpendicular to the up-down direction can be 45° or less, or 35° or less.

[0036] The connecting portion 35 has a first portion 35a connecting the first and second arms 31, 32, a second portion 35b connecting the third and fourth arms 33, 34, and a third portion 35c connecting the first portion 35a and the second portion 35b, although other structures may be employed. The first portion 35a is located forward of the first blade 21, the second portion 35b is located forward of the second blade 22, and the third portion 35c is located forward of the connecting post 23. To restrict relative displacement between the slider body 8 and the mounting member 9, a pair of flat plate portions 36 that sandwich the front end portion of the connecting post 23 of the slider body 8 can be connected to the third portion 35c, but of course, these may be omitted.

[0037] The first portion 35a includes a flat plate portion 45 having a first surface 45a and a second surface 45b (opposite the first surface 45a), and a male engagement portion 11 provided on the second surface 45b of the flat plate portion 45. The first surface 45a of the flat plate portion 45 includes a first protrusion 41 extending in the same line as the first arm portion 31, a second protrusion 42 extending in the same line as the second arm portion 32, and an intermediate recess 43 formed between the first protrusion 41 and the second protrusion 42. The first arm portion 31 and the first protrusion 41 together form a linear ridge extending in the front-rear direction. The second arm portion 32 and the second protrusion 42 together form a linear ridge extending in the front-rear direction. The lateral width W1 of the flat plate portion 45 may be less than the maximum lateral width W2 of the slider body 8 (see FIG. 5 ). As a result, even though the mounting member 9 is attached to the slider body 8, the apparent size of the slider devices 6, 7 can be reduced.

[0038] The male engaging portion 11 is provided upright on the second surface 45b of the flat portion 45. The male engaging portion 11 is positioned forward and spaced apart from the third portion 35c, forming a receiving space for a mating male engaging portion between them. Although not necessarily limited to this, the male engaging portion 11 is positioned on the second surface 45b of the flat portion 45 opposite the intermediate recess 43. The male engaging portion 11 has an inclined surface 11a facing forward and a stop surface 11b opposite the inclined surface 11a, i.e., facing the third portion 35c (see FIG. 2). During the engagement between the male engaging portions 11 of the slider devices 6 and 7, one male engaging portion 11 climbs over the other male engaging portion 11, and simultaneously, the other male engaging portion 11 climbs over the first male engaging portion 11, so that the stop surfaces 11b face or come into contact with each other (see FIG. 3). In this manner, the slider devices 6 and 7 are in a simple locking state. In the simple lock state, each male engaging portion 11 is sandwiched between the left and right fastener elements 5m, 5n.

[0039] The front surface of the third portion 35c is inclined rearward from the first portion 35a to the second portion 35b, which allows the entrance to the receiving space to be wider in the front-to-rear direction compared to when the third portion 35c is not inclined, thereby facilitating the engagement and disengagement of the male engaging portions 11 with each other.

[0040] The first and second arms 31, 32 each have a first and second opposing surface 51, 52 facing each other (see FIG. 8 ). The first arm 31 has a first opposing surface 53 opposite the first opposing surface 51, and has a left-right width defined by the first opposing surface 51 and the first opposing surface 53. The second arm 32 has a second opposing surface 54 opposite the second opposing surface 52, and has a left-right width defined by the second opposing surface 52 and the second opposing surface 54. In the illustrated example, the first and second opposing surfaces 51, 52 and the first and second opposing surfaces 53, 54 are all flat surfaces perpendicular to the left-right direction, but this is not necessarily the case. The first and second opposing surfaces 51, 52 may also be tapered so that the distance between them increases as they move away from the connecting portion 35.

[0041] The first arm 31 includes a first locking projection 61 that protrudes from the first opposing surface 51 toward the second arm 32 to prevent the base end 24a of the pull-tab mounting post 24 inserted between the first and second arms 31, 32 from coming off. Similarly, the second arm 32 includes a second locking projection 62 that protrudes from the second opposing surface 52 toward the first arm 31 to prevent the base end 24a of the pull-tab mounting post 24 inserted between the first and second arms 31, 32 from coming off. Typically, the first and second locking projections 61, 62 are shaped mirror-symmetrically with respect to the center line CL of the mounting member 9.

[0042] The first locking projection 61 has an inclined guide surface 61a that approaches the second locking projection 62 (or the center line CL of the mounting member 9) as it extends away from the tip end 31q of the first arm 31 (first guide surface 81 described below) and in a direction approaching the connecting portion 35, and a stop surface 61b that faces the rear surface 35j of the connecting portion 35. Similarly, the second locking projection 62 has an inclined guide surface 62a that approaches the first locking projection 61 as it extends away from the second guide surface 82 and in a direction approaching the connecting portion 35, and a stop surface 62b that faces the rear surface 35j of the connecting portion 35. The stop surfaces 61b, 62b prevent the base end 24a of the pull-tab mounting post 24 from moving away from the connecting portion 35 after passing the first and second locking projections 61, 62 and moving toward the connecting portion 35. Optionally, the first locking projection 61 may have a flat or arcuate top surface 61c (chamfered) between the guide ramp 61a and the stop surface 61b. Similarly, the second locking projection 62 may have a flat or arcuate top surface 62c (chamfered) between the guide ramp 62a and the stop surface 62b.

[0043] A passage for the base end 24a of the pull-tap mounting post 24 is formed between the guide inclined surfaces 61a, 62a. When the base end 24a of the pull-tap mounting post 24 passes through this passage, the guide inclined surfaces 61a, 62a are pushed away from each other (in the left-right direction) by the base end 24a of the pull-tap mounting post 24, widening the width of the passage and allowing the base end 24a of the pull-tap mounting post 24 to pass through. After the base end 24a of the pull-tap mounting post 24 passes through the passage, the first and second arms 31, 32 elastically return to their original shape and position, and the base end 24a of the pull-tap mounting post 24 is held by the mounting member 9 at a position forward of the first and second locking protrusions 61, 62.

[0044] The third and fourth arms 33, 34 are typically configured symmetrically to the first and second arms 31, 32, and therefore have third and fourth locking protrusions 63, 64 symmetrically shaped to the first and second locking protrusions 61, 62. When a pull-tab mounting post is provided on the second wing plate 22 of the slider body 8, the third and fourth locking protrusions 63, 64 prevent the base end of the pull-tab mounting post from moving away from the connecting portion 35. In some cases, as shown in FIG. 6 , a protrusion 27 is formed on the outer surface 22a of the second wing plate 22 in an area that at least partially overlaps with the connecting post 23. This protrusion 27 is sandwiched between the third and fourth locking protrusions 63, 64, allowing the mounting member 9 to be more stably mounted to the slider body 8. In addition, the third and fourth arm portions 33, 34 and the third and fourth locking protrusions 63, 64 may have a different shape from the first and second arm portions 31, 32 and the first and second locking protrusions 61, 62, and the third and fourth locking protrusions 63, 64 may be formed to match the shape of the convex portion 27.

[0045] In this embodiment, the first locking projection 61 is offset on the first opposing surface 51 toward the connecting portion 35 relative to the tip 31q of the first arm 31, and the first opposing surface 51 includes a first guide surface 81 located farther from the connecting portion 35 than the first locking projection 61 (see, for example, FIG. 8 ). The second locking projection 62 is offset on the second opposing surface 52 toward the connecting portion 35 relative to the tip 32q of the second arm 32, and the second opposing surface 52 includes a second guide surface 82 located farther from the connecting portion 35 than the second locking projection 62. The first and second guide surfaces 81, 82 are positioned opposite each other to define a guide path 85 along which the base end 24a of the pull-tab mounting post 24 moves during the process of mounting the mounting member 9 to the slider body 8. This feature promotes smooth mounting or automation of the mounting member 9 to the pull-tab mounting post 24 of the slider body 8.

[0046] Typically, the range of motion of the pull tab 10 between the pull tab mounting post 24 (particularly its middle portion 24c) and the first wing 21 is restricted by the tip portions 31q, 32q of the first and second arm portions 31, 32, but in return, smooth attachment of the mounting member 9 to the pull tab mounting post 24 or automation of this attachment is facilitated.

[0047] The guide path 85 has a rear open end defined between the rear ends of the first guide surface 81 and the second guide surface 82 and a front open end defined between the front ends of the first guide surface 81 and the second guide surface 82, and typically extends linearly toward the connecting portion 35. The left-right width of the guide path 85 is constant between the rear and front open ends, but this is not necessarily limited thereto and the guide path 85 may gradually decrease from the rear open end toward the front open end. Preferably, the guide path 85 has a width in the left-right direction equal to that of the base end 24a of the pull-tab mounting post 24 so that the first and second arms 31, 32 do not elastically deform as the base end 24a of the pull-tab mounting post 24 passes through the guide path 85.

[0048] The first opposing surface 51 has a first contact surface 91 located closer to the connecting portion 35 than the first locking projection 61, and the second opposing surface 52 has a second contact surface 92 located closer to the connecting portion 35 than the second locking projection 62, and the base end 24a of the pull-tab mounting post 24 is held between the first and second contact surfaces 91, 92. The first and second contact surfaces 91, 92 come into contact with the base end 24a of the pull-tab mounting post 24 (first and second side surfaces 24e, 24f facing opposite sides in the left-right direction) when the mounting member 9 is attached to the slider body 8.

[0049] The first contact surface 91 and the second contact surface 92 are disposed on both the left and right sides of the rear surface 35j of the connecting portion 35. A protuberance 35k may be formed between the rear surface 35j and the first contact surface 91, and a protuberance 35i may be formed between the rear surface 35j and the second contact surface 92. The protuberances 35k and 35i have opposing surfaces shaped to at least partially match the contour of the base end 24a of the pull-tab mounting post 24. In the illustrated example, the opposing surfaces include, but are not limited to, curved and flat surfaces. The holding space of the mounting member 9 for the base end 24a of the pull-tab mounting post 24 is defined by the rear surface 35j of the connecting portion 35, the first and second contact surfaces 91 and 92, and the stop surfaces 61b and 62b of the first and second locking projections 61 and 62 (and, optionally, the opposing surfaces of the protuberances 35k and 35i).

[0050] The first and second guide surfaces 81, 82 will be described in more detail below. The third and fourth arm portions 33, 34 have third and fourth guide surfaces 83, 84 similar to the first and second guide surfaces 81, 82, and therefore a redundant description will be omitted.

[0051] The distance between the first and second guide surfaces 81, 82 can be set so that the base end 24a of the pull-tab mounting post 24 slides on both the first and second guide surfaces 81, 82 during the process of attaching the attachment member 9 to the slider body 8. In this case, the attachment member 9 is aligned with the slider body 8 so that the base end 24a is sandwiched between the first and second guide surfaces 81, 82, and the base end 24a is guided toward the connecting portion 35 while the first and second side surfaces 24e, 24f of the base end 24a come into contact with the first and second guide surfaces 81, 82. The attachment member 9 can then be slid relative to the slider body 8 so that the base end 24a moves toward the connecting portion 35 over the first and second locking protrusions 61, 62. Before climbing over the first and second locking projections 61, 62, the mounting member 9 is accurately aligned with the slider body 8, which facilitates the mounting of the mounting member 9 to the slider body 8 (the base end 24a climbing over the first and second locking projections 61, 62) with less force than would be required otherwise.

[0052] In some cases, the first and second guide surfaces 81, 82 are oriented parallel to each other, allowing the base end 24a of the pull-tab mounting post 24 to slide smoothly between them. The first guide surface 81 may be inclined away from the center line CL of the mounting member 9 as it moves away from the connecting portion 35, and the same applies to the second guide surface 82. That is, the first and second guide surfaces 81, 82 may be inclined in a tapered manner so that the distance between them increases as it moves away from the connecting portion 35. In some cases, the plane on which the first guide surface 81 exists forms an acute angle of 10° or less with the center line CL of the mounting member 9, and the same applies to the second guide surface 82.

[0053] The first and second guide surfaces 81, 82 may be longer (for example, by 5 mm or more, or 8 mm or more) than the guide inclined surfaces 61 a, 62 a in the direction from the guide path 85 toward the connecting portion 35 (i.e., the front-to-rear direction), thereby ensuring a sufficient length of the guide path 85. Additionally or alternatively, the first and second guide surfaces 81, 82 may be shorter than the first and second contact surfaces 91, 92 in the same direction (i.e., the front-to-rear direction), thereby reducing the degree of restriction on the range of motion of the pull tab 10.

[0054] The first guide surface 81 may be flush with the first contact surface 91 or may form an acute angle of 5° or less with the plane on which the first contact surface 91 lies. The second guide surface 82 may be flush with the second contact surface 92 or may form an acute angle of 5° or less with the plane on which the second contact surface 92 lies. In such a case, the distance between the first and second guide surfaces 81, 82 is approximately equal to the retention distance for the base end 24a of the pull-tab mounting post 24 between the first and second contact surfaces 91, 92, thereby improving the uniformity of the appearance of the mounting member 9.

[0055] It is preferable that the angle between the plane on which the first guide surface 81 exists and the guide inclined surface 61a of the first locking protrusion 61 is an acute angle within 5° to 60° (e.g., within 5° to 50°), and / or the angle between the plane on which the second guide surface 82 exists and the guide inclined surface 62a of the second locking protrusion 62 is an acute angle within 5° to 60° (e.g., within 5° to 50°), thereby enabling a smooth transition to the expansion of the first and second arm portions 31, 32.

[0056] The mounting member 9 is slid and mounted on the slider body 8 (see FIGS. 8 and 9 ). This process is shown in FIGS. 10 to 12 . First, as shown in FIG. 10 , the base end 24 a of the pull-tab mounting post 24 is inserted between the first and second arms 31 and 32, specifically between the first guide surface 81 and the second guide surface 82 (guide path 85). This aligns the mounting member 9 with the slider body 8. During this alignment process, the base end 24 a slides on both the first and second guide surfaces 81 and 82. However, depending on the spacing between the first and second guide surfaces 81 and 82, it is possible that the base end 24 a slides only on one of the surfaces. If the lateral width of the guide path 85 is equal to the lateral width of the base end 24 a of the pull-tab mounting post 24, the base end 24 a can be introduced into the guide path 85 without requiring an excessively large force (compared to the situation in FIGS. 11 and 12 ).

[0057] 11 and 12, the base end 24a of the pull-tab mounting post 24 is moved past the first and second locking projections 61, 62 toward the connecting portion 35 of the mounting member 9. Referring to FIG. 11, the mounting member 9 is slid relative to the slider body 8 until the base end 24a of the pull-tab mounting post 24 is inserted between the guide inclined surface 61a of the first locking projection 61 and the guide inclined surface 62a of the second locking projection 62. The distance between the guide inclined surfaces 61a, 62a gradually decreases toward the connecting portion 35. Therefore, as the mounting member 9 slides, the base end 24a is press-fit between the guide inclined surfaces 61a, 62a, and the first and second arms 31, 32 expand in unison (i.e., pivot away from the center line CL of the mounting member 9).

[0058] 11 , as shown in FIG. 12 , the base end 24a of the pull-tab mounting post 24 is press-fit between the top surface 61c of the first locking projection 61 and the top surface 62c of the second locking projection 62. As the mounting member 9 slides, the top surfaces 61c, 62c slide over the first and second side surfaces 24e, 24f of the base end 24a. At this time, the expansion dimension of the first and second arms 31, 32 (the left-right width between the first locking projection 61 and the second locking projection 62) remains at its maximum value. When the base end 24a moves toward the connecting portion 35 beyond the first and second locking projections 61, 62 due to the sliding movement of the mounting member 9, the first and second arms 31, 32 elastically return to their original shapes, completing the attachment of the mounting member 9 to the slider body 8. The first and second locking projections 61, 62 (particularly the stopping surfaces 61b, 62b) prevent the attachment member 9 from being removed from the slider body 8. In addition, in the fully attached state, the base end 24a does not contact the rear surface 35j of the connecting portion 35, but contacts the first and second contact surfaces 91, 92, the stopping surfaces 61b, 62b of the first and second locking projections 61, 62, and parts (curved surfaces) of the opposing surfaces of the optional raised portions 35k, 35i.

[0059] To more accurately understand the structure of the mounting member 9, FIGS. 13 to 18 illustrate the exact structure of the mounting member 9 when not attached to the slider body 8. As can be seen from FIG. 13 , the first to fourth arms 31 to 34 extend rearward from the connecting portion 35 to sandwich the slider body 8 from above and below. The first locking protrusion 61 and / or the second locking protrusion 62 have a (e.g., flat) contact surface that contacts the outer surface 21 a of the first blade 21, contributing to an increase in the contact area therebetween. The third and fourth locking protrusions 63 and 64 have a (e.g., flat) contact surface that contacts the outer surface 22 a of the second blade 22, contributing to an increase in the contact area therebetween. A first guide surface 81 extends between the first locking protrusion 61 and a chamfered edge 31 r between the rear surface of the first arm 31 and the first opposing surface 51. The second guide surface 82 extends between the chamfered edge 32r between the rear surface of the second arm portion 32 and the second opposing surface 52 and the second locking projection 62. The same applies to the third and fourth guide surfaces 83, 84.

[0060] As can be seen from FIGS. 14 and 15 , when the first portion 35a or the second portion 35b of the mounting member 9 is viewed from the front, the first through fourth locking protrusions 61-64 are aligned in the same line as the flat portion 36, contributing to improved mounting stability of the mounting member 9 to the slider body 8. As can be seen from FIG. 16 , the minimum spacing between the raised portions 35k and 35i is equal to the spacing between the flat portions 36, thereby optimizing or simplifying the structure of the mold for molding the mounting member 9. As can be seen from FIG. 17 , there is a space between the first arm 31 and the third arm 33, and a space between the second arm 32 and the fourth arm 34. When the mounting member 9 is mounted to the slider body 8, the left and right front openings of the connecting posts 23 of the slider body 8 are positioned within the above-mentioned spaces. As can be seen from FIG. 18 , the male engaging portion 11 intersects a plane set at half the maximum thickness of the mounting member 9.

[0061] 19 and 20 , the mounting member 9 can have an engaging protrusion 37 that fits into the recess 26 of the pull-tab mounting post 24. This allows the mounting member 9 to be mounted more stably to the slider body 8. The engaging protrusion 37 extends linearly rearward between the first and second arm portions 31, 32. It is also possible to provide an engaging protrusion on the pull-tab mounting post 24 and a recess on the mounting member 9.

[0062] Fig. 21 is a schematic top view of a slide fastener 1 according to a modified example, in which an attachment member 9 is attached to the slider body 8 to prevent the slider body 8 from biting into the fabric. Fig. 22 is a schematic side view of the attachment member 9 shown in Fig. 21. As shown in Figs. 21 and 22, the first and second portions 35a, 35b of the connecting portion 35 are shaped like flat plates, and a guide path for the fastener elements 5m, 5n is formed between them. The fabric of an article (e.g., clothing) to which the slide fastener 1 is attached is prevented from reaching the gap between the slider body 8 and the fastener elements 5m, 5n when the slider devices 6, 7 move.

[0063] 23 is a schematic diagram showing a modified example of the mounting member 9. The first and second arms 31, 32 have first and second flanges 38 arranged on both the left and right sides of the first blade 21 of the slider body 8, and the third and fourth arms 33, 34 have third and fourth flanges 39 arranged on both the left and right sides of the second blade 22 of the slider body 8. In this way, each arm does not need to be a flat portion.

[0064] In light of the above teachings, those skilled in the art can make various modifications to each embodiment and each feature. The reference numerals included in the claims are for reference purposes only and should not be used to limit the interpretation of the claims.

[0065] DESCRIPTION OF SYMBOLS 1: Slide fastener 2: Fastener chain 3m, 3n: Fastener stringer 6, 7: Slider device 8: Slider body 9: Mounting member 10: Pull tab 11: Male engaging portion 21: First wing plate 22: Second wing plate 23: Connecting post 24: Pull tab mounting post 24a: Base end portion 31: First arm portion 32: Second arm portion 33: Third arm portion 34: Fourth arm portion 35: Connecting portion 36: Flat plate portion 51: First opposing surface 52: Second opposing surface 61: First locking projection 61a: Guide inclined surface 62: Second locking projection 62a: Guide inclined surface 81: First guide surface 82: Second guide surface 85: Guide path 91: First contact surface 92 :Second contact surface

Claims

1. A slider body (8) including a first wing (21), a second wing (22), a connecting post (23) connecting the first wing (21) and the second wing (22), and a pull-tab mounting post (24) having a base end (24a) connected to the first wing (21); and an attachment member (9) attached to the slider body (8), the attachment member (9) including first and second arms (31, 32) sandwiching the base end (24a) of the pull-tab mounting post (24) on the first wing (21), and a connecting portion (35) connecting at least the first and second arms (31, 32), the first and second arms (31, 32) respectively having first and second opposing surfaces (51, 52) facing each other, and the first arm (31) being inserted between the first and second arms (31, 32). A slider device (6, 7) for a slide fastener, comprising an attachment member (9) including a first locking projection (61) projecting from the first opposing surface (51) toward the second arm portion (32) to prevent removal of the base end portion (24a) of the attachment post (24), and the second arm portion (32) including a second locking projection (62) projecting from the second opposing surface (52) toward the first arm portion (31) to prevent removal of the base end portion (24a) of the pull tab attachment post (24) inserted between the first and second arms (31, 32), the first locking projection (61) is provided on the first opposing surface (51) offset toward the connecting portion (35) compared to the tip end (31q) of the first arm portion (31), and the first opposing surface (51) includes a first guide surface (81) located farther from the connecting portion (35) than the first locking projection (61); the second locking projection (62) is provided on the second opposing surface (52) offset toward the connecting portion (35) compared to the tip end (32q) of the second arm portion (32), and the second opposing surface (52) includes a second guide surface (82) located farther from the connecting portion (35) than the second locking projection (62); The first and second guide surfaces (81, 82) are arranged opposite each other to define a guide path (85) along which the base end (24a) of the pull tab mounting post (24) moves during the mounting process of the mounting member (9) to the slider body (8).

2. The slider device as described in claim 1, wherein the distance between the first and second guide surfaces (81, 82) is set so that the base end (24a) of the pull-tab mounting post (24) slides on both the first and second guide surfaces (81, 82) during the process of mounting the mounting member (9) to the slider body (8).

3. A slider device according to claim 1 or 2, wherein the first and second guide surfaces (81, 82) are oriented parallel.

4. A slider device as described in any one of claims 1 to 3, wherein the first arm portion (31) has an inclined surface (31k) that approaches the first blade (21) as it moves away from the connecting portion (35) and reduces the thickness of the first arm portion (31), and / or the second arm portion (32) has an inclined surface (32k) that approaches the first blade (21) as it moves away from the connecting portion (35) and reduces the thickness of the second arm portion (32).

5. A slider device as claimed in any one of claims 1 to 4, wherein the first locking projection (61) has a first guide inclined surface (61a) that approaches the second locking projection (62) as it extends away from the first guide surface (81) and in a direction approaching the connecting portion (35), the second locking projection (62) has a second guide inclined surface (62a) that approaches the first locking projection (61) as it extends away from the second guide surface (82) and in a direction approaching the connecting portion (35), and the distance between the first and second guide inclined surfaces (61a, 62a) gradually decreases towards the connecting portion (35).

6. The slider device according to claim 5, wherein the angle between the plane on which the first guide surface (81) exists and the first guide inclined surface (61a) is an acute angle within 5° to 60°; and / or the angle between the plane on which the second guide surface (82) exists and the second guide inclined surface (62a) is an acute angle within 5° to 60°.

7. A slider device as described in claim 5 or 6, wherein the length of the first guide surface (81) along a predetermined direction from the guide path (85) toward the connecting portion (35) is greater than the length of the first guide inclined surface (61a) along the predetermined direction; and / or the length of the second guide surface (82) along the predetermined direction is greater than the length of the second guide inclined surface (62a) along the predetermined direction.

8. The slider device according to any one of claims 5 to 7, wherein the first opposing surface (51) has a first contact surface (91) that contacts a first side surface (24e) of the base end (24a) of the pull-tab mounting post (24) when the mounting member (9) is attached to the slider body (8), and the second opposing surface (52) has a second contact surface (92) that contacts a second side surface (24f) of the base end (24a) of the pull-tab mounting post (24) when the mounting member (9) is attached to the slider body (8), and a length of the first guide surface (81) along a predetermined direction from the guide path (85) toward the connecting portion (35) is smaller than a length of the first contact surface (91) along the predetermined direction, and a length of the second guide surface (82) along the predetermined direction is smaller than a length of the second contact surface (92) along the predetermined direction.

9. A slider device according to any one of claims 1 to 8, wherein the first opposing surface (51) has a first contact surface (91) that contacts a first side surface (24e) of the base end (24a) of the pull-tab mounting post (24) when the mounting member (9) is attached to the slider body (8), and the second opposing surface (52) has a second contact surface (92) that contacts a second side surface (24f) of the base end (24a) of the pull-tab mounting post (24) when the mounting member (9) is attached to the slider body (8), the first guide surface (81) is in the same plane as the first contact surface (91) or forms an acute angle of 5° or less with respect to a plane on which the first contact surface (91) is present, and the second guide surface (82) is in the same plane as the second contact surface (92) or forms an acute angle of 5° or less with respect to a plane on which the second contact surface (92) is present.

10. A slider device as described in claim 9, wherein the connecting portion (35) has a first portion (35a) connecting the first and second arm portions (31, 32), a second portion (35b) connecting the third and fourth arm portions (33, 34), and a third portion (35c) connecting the first portion (35a) and the second portion (35b), and a pair of flat plate portions (36) that sandwich a front end portion of the connecting post (23) of the slider body (8) are connected to the third portion (35c).

11. An attachment member (9) which is attached separately from a pull tab (10) to a slider body (8) for a slide fastener, the attachment member (9) including a first wing (21), a second wing (22), a connecting post (23) connecting the first wing (21) and the second wing (22), and a pull tab attachment post (24) having a base end (24a) connected to the first wing (21), the attachment member (9) comprising first and second arms (31, 32) which sandwich the base end (24a) of the pull tab attachment post (24) on the first wing (21), the first and second arms (31, 32) having first and second opposing surfaces (51, 52) which face each other, and the first arm (31) prevents the base end (24a) of the pull tab attachment post (24) inserted between the first and second arms (31, 32) from coming off. a first locking projection (61) protruding from the first opposing surface (51) toward the second arm portion (32) to prevent the base end (24a) of the pull-tab mounting post (24) inserted between the first and second arm portions (31, 32) from coming off, and the second arm portion (32) including a second locking projection (62) protruding from the second opposing surface (52) toward the first arm portion (31) to prevent the base end (24a) of the pull-tab mounting post (24) inserted between the first and second arm portions (31, 32) from coming off; the locking projection (61) is provided on the first opposing surface (51) offset toward the connecting portion (35) compared to the tip end (31q) of the first arm portion (31), the first opposing surface (51) including a first guide surface (81) positioned farther from the connecting portion (35) than the first locking projection (61); the locking projection (62) is provided on the second opposing surface (52) offset toward the connecting portion (35) compared to the tip end (32q) of the second arm portion (32), the second opposing surface (52) including a second guide surface (82) positioned farther from the connecting portion (35) than the second locking projection (62); The first and second guide surfaces (81, 82) are disposed opposite each other to define a guide path (85) along which the base end (24a) of the pull tab mounting post (24) moves during the mounting process of the mounting member (9) to the slider body (8).

12. The mounting member according to claim 11, wherein the first arm portion (31) has an inclined surface (31k) that approaches the first blade (21) as it moves away from the connecting portion (35) and reduces the thickness of the first arm portion (31), and / or the second arm portion (32) has an inclined surface (32k) that approaches the first blade (21) as it moves away from the connecting portion (35) and reduces the thickness of the second arm portion (32).

13. A mounting member as described in claim 11 or 12, wherein the first opposing surface (51) has a first contact surface (91) that contacts a first side surface (24e) of the base end (24a) of the pull-tab mounting post (24) when the mounting member (9) is attached to the slider body (8), and the second opposing surface (52) has a second contact surface (92) that contacts a second side surface (24f) of the base end (24a) of the pull-tab mounting post (24) when the mounting member (9) is attached to the slider body (8), and a length of the first guide surface (81) along a predetermined direction from the guide path (85) toward the connecting portion (35) is smaller than a length of the first contact surface (91) along the predetermined direction, and a length of the second guide surface (82) along the predetermined direction is smaller than a length of the second contact surface (92) along the predetermined direction.

14. A slider body (8) including a first blade (21), a second blade (22), a connecting post (23) connecting the first blade (21) and the second blade (22), and a pull tab mounting post (24) having a base end (24a) connected to the first blade (21); a manufacturing method for a slider device (6, 7) for a slide fastener, comprising an attachment member (9) attached to the slider main body (8), the attachment member (9) including first and second arm portions (31, 32) that sandwich a base end portion (24a) of the pull tab mounting post (24) on the first wing (21) and a connecting portion (35) at least connecting the first and second arm portions (31, 32), the first and second arm portions (31, 32) respectively having first and second opposing surfaces (51, 52) facing each other, the first arm portion (31) including a first locking projection (61) protruding from the first opposing surface (51) toward the second arm portion (32), and the second arm portion (32) including a second locking projection (62) protruding from the second opposing surface (52) toward the first arm portion (31), The method includes a first step of introducing a base end (24a) of a pull-tab mounting post (24) of the slider body (8) between the first and second arm portions (31, 32); and a second step of moving the base end (24a) of the pull-tab mounting post (24) of the slider body (8) toward the connecting portion (35) of the mounting member (9) beyond the first and second locking projections (61, 62), the first step including inserting the base end (24a) of the pull-tab mounting post (24) between a first guide surface (81) of the first opposing surface (51) of the first arm portion (31) and a second guide surface (82) of the second opposing surface (52) of the second arm portion (32), and sliding the base end (24a) of the pull-tab mounting post (24) on at least one of the first and second guide surfaces (81, 82), a first locking protrusion (61) provided on the first opposing surface (51) so as to be offset toward the connecting portion (35) compared to the tip end (31q) of the first arm portion (31); and a second locking protrusion (62) provided on the second opposing surface (52) so as to be offset toward the connecting portion (35) compared to the tip end (32q) of the second arm portion (32).

Images