VALVE DEVICE, METHOD FOR MANUFACTURING A VALVE DEVICE AND ATTACHMENT PART

Abstract

A sliding device (6, 7) for a zipper comprises a slider body (8) and an attachment part (9). The attachment part (9) comprises a first and a second arm (31, 32), between which a base end (24a) of a pull-piece attachment column (24) is inserted on a first wing (21) of the slider body (8). The first and the second arm (31, 32) each comprise a first and a second locking projection (61, 62). The first locking projection (61) is offset relative to a distal end (31q) of the first arm (31) closer to the connecting section (35), and the second locking projection (62) is offset relative to a distal end (32q) of the second arm (32) closer to the connecting section (35).The first and second guide surfaces (81, 82) are arranged so that they face each other to define a guide path (85) on which the base end (24a) of the pull piece attachment column (24) of the pull piece moves while the attachment part (9) is attached to the slide body (8).

Description

[Technical field]

[0001] The present disclosure relates to a sliding device, a method for manufacturing a sliding device and an attachment part. [Previous state of the art]

[0002] As revealed in PTL 1-3, it is known to attach a mounting part to a slide body in order to improve the functionality of the slide. [List of publications][Patent literature] [PTL 1] Canadian patent application no. 2419659 [PTL 2] Chinese registered utility model no. 218008498 [PTL 3] US Patent No. 10492572 [Brief description of the invention][Technical problem]

[0003] Priority has been given to the free or intended movement (e.g., pivoting) of a pull piece by avoiding any interference between the pull piece and an attachment part mounted on a pull piece mounting column of a slide body (see PTL 1-3). However, in this situation, neither a smooth attachment of the mounting part to the slide nor an automation of the attachment is easily achieved.

[0004] With regard to the above-mentioned, non-restrictive example problem, a technical advantage lies in providing an attachment part that can enable a smoother or automated attachment of the same to the pull-piece attachment column of the slide body. [Solution to the problem]

[0005] A sliding device for a zipper according to one aspect of the present disclosure may comprise: a sliding body comprising a first wing, a second wing, a connecting column linking the first and second wings, and a pull-piece attachment column having a base end connected to the first wing; and an attachment part attached to the sliding body. The attachment part comprises: a first and a second arm, between which the base end of the pull-piece attachment column is inserted on the first wing, and a connecting section to which at least the first and the second arms are connected. The first and the second arms each have a first and a second opposing surface facing each other.The first arm includes a first locking projection extending from the first opposite face toward the second arm to prevent the base end of the pull-piece attachment column, inserted between the first and second arms, from being removed. The second arm includes a second locking projection extending from the second opposite face toward the first arm to prevent the base end of the pull-piece attachment column, inserted between the first and second arms, from being removed. The first locking projection is offset relative to a distal end of the first arm on the first opposite face closer to the connecting section, and the first opposite face includes a first guide surface positioned farther from the connecting section than the first locking projection.The second locking projection is offset relative to a distal end of the second arm on the second opposite surface, closer to the connecting section, and the second opposite surface includes a second guide surface positioned farther from the connecting section than the second locking projection. The first and second guide surfaces are arranged to face each other to define a guide path along which the base end of the pull-piece attachment column moves as the attachment is fitted to the slide body.

[0006] An attachment part according to another aspect of the present disclosure may be an attachment part that is separately attached to a slider body for a zipper, wherein the slider body has a first wing, a second wing, a connecting column connecting the first and second wings, and a slider attachment column having a base end connected to the first wing, wherein the attachment part comprises: a first and a second arm between which the base end of the slider attachment column is inserted on the first wing, wherein the first and the second arm each have a first and a second opposing surface facing each other, wherein the first arm includes a first locking projection extending from the first opposing surface towards the second arm to prevent the base end of the slider attachment column fromthat has been inserted between the first and second arms, and wherein the second arm comprises a second locking projection extending from the second opposite face toward the first arm to prevent the removal of the base end of the pull-piece attachment column that has been inserted between the first and second arms; and a connecting section to which at least the first and second arms are connected. The first locking projection is offset relative to a distal end of the first arm on the first opposite face closer to the connecting section, and the first opposite face includes a first guide surface positioned farther from the connecting section than the first locking projection. The second locking projection is offset relative to a distal end of the second arm on the second opposite face closer to the connecting section.and the second opposite surface comprises a second guide surface positioned further away from the connecting section than the second locking projection. The first and second guide surfaces are arranged to face each other to define a guide path along which the base end of the pull-piece attachment column moves while the attachment part is fitted to the slide body.

[0007] A method for manufacturing a sliding device according to a further aspect of the present disclosure may be a method for manufacturing a sliding device for a zipper, wherein the sliding device comprises: a sliding body comprising a first wing, a second wing, a connecting column connecting the first and second wings, and a pull-piece attachment column having a base end connected to the first wing; and an attachment part attached to the sliding body, wherein the attachment part comprises: a first and a second arm between which the base end of the pull-piece attachment column is inserted on the first wing, and a connecting section to which at least the first and the second arm are connected; wherein the first and the second arm each have a first and a second opposing surface facing each other.wherein the first arm has a first locking projection extending from the first opposite face towards the second arm, and wherein the second arm has a second locking projection extending from the second opposite face towards the first arm, the method comprising: a first step of inserting the base end of the pull-piece mounting column of the slide body into a space between the first and the second arm; and a second step following the first step of moving the base end of the pull-piece mounting column of the slide body beyond the first and the second locking projections towards the connecting section of the mounting part. The first step comprises,The base end of the pull-piece mounting column is to be inserted into a space between a first guide surface of the first opposite surface of the first arm and a second guide surface of the second opposite surface of the second arm, such that the base end of the pull-piece mounting column slides on at least one guide surface of the first and the second guide surfaces. The first locking projection is offset relative to a distal end of the first arm on the first opposite surface towards the connecting section, such that the first guide surface is formed. The second locking projection is offset relative to a distal end of the second arm on the second opposite surface towards the connecting section, such that the second guide surface is formed.

[0008] The following features, alone or in combination, would be applicable to the various aspects mentioned above. The mounting element can be attached to the slide body separately from a pull piece. The first and second guide surfaces can be spaced apart so that the base end of the pull piece mounting column can slide on both the first and second guide surfaces while the mounting element is being attached to the slide body. Additionally or alternatively, the first and second guide surfaces are aligned parallel to each other.

[0009] The first arm may have a sloping surface that, in its course away from the connecting section, approaches the first wing in order to reduce the thickness of the first arm, and / or the second arm may have a sloping surface that, in its course away from the connecting section, approaches the first wing in order to reduce the thickness of the second arm.

[0010] The first arm and / or the second arm can be a flat plate section positioned on the first wing.

[0011] The first locking projection can have a first guide inclined surface which, in its course, approaches the second locking projection in a direction away from the first guide surface and closer to the connecting section; the second locking projection can have a second guide inclined surface which, in its course, approaches the first locking projection in a direction away from the second guide surface and closer to the connecting section; and the distance between the first and second guide inclined surfaces can gradually decrease towards the connecting section.

[0012] An angle between the first guide inclined surface and a plane in which the first guide surface lies can be an acute angle in a range between 5° and 60°; and / or an angle between the second guide inclined surface and a plane in which the second guide surface lies can be an acute angle in a range between 5° and 60°.

[0013] The length of the first guide surface, measured along a predetermined direction from the guide path to the connecting section, is greater than the length of the first guide inclined surface, measured along the predetermined direction; and / or the length of the second guide surface, measured along the predetermined direction, is greater than the length of the second guide inclined surface, measured along the predetermined direction.

[0014] The first opposite surface can comprise a first contact surface which, in a state in which the attachment part has been attached to the slide body, is in contact with a first side of the base end, and the second opposite surface can comprise a second contact surface which, in a state in which the attachment part has been attached to the slide body, is in contact with a second side of the base end of the pull-piece attachment column.

[0015] The length of the first guide surface, measured along a predetermined direction from the guide track to the connecting section, is shorter than the length of the first contact surface, measured along the predetermined direction, and the length of the second guide surface, measured along the predetermined direction, is shorter than the length of the second contact surface, measured along the predetermined direction. Additionally or alternatively, the first guide surface may be coplanar with the first contact surface or may 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 may form an acute angle of 5° or less with a plane in which the second contact surface lies.

[0016] The mounting part can include a third and a fourth arm, each connected to the connecting section and attached to the second wing. The third and fourth arms can be shaped to be mirror images of the first and second arms, respectively.

[0017] The connecting section can comprise a first section connecting the first and second arms, a second section connecting the third and fourth arms, and a third section connecting the first and second sections. A pair of flat plates can be connected to the third section in such a way that a section at the front end of the connecting column of the slide body can be inserted between them.

[0018] The first guide surface can extend between the first locking projection and a first chamfered edge formed between a rear face of the first arm and the first opposite face. The second guide surface can extend between the second locking projection and a chamfered edge formed between a rear face of the second arm and the second opposite face. The first and second guide surfaces can be aligned parallel or slightly oblique to a centerline of the mounting part. [Effect of the invention]

[0019] According to one aspect of the present disclosure, an attachment part is provided which can enable a smoother attachment or automated attachment to the pull-piece attachment column of the slide body. [Brief description of the drawings] Fig. Figure 1 is a schematic partial view of a zipper according to one aspect of the present disclosure from above. Fig. Figure 2 is a schematic view showing that the first and second slider devices are spaced apart from each other and positioned in an uncoupled state on a zipper chain. Fig. Figure 3 is a schematic view showing that the first and second slider devices are adjacent and positioned in a coupled state on the zipper chain. Fig. Figure 4 is a schematic perspective view of the sliding device, omitting the representation of a pull piece. Fig. Figure 5 is a schematic view of the sliding device from above. Fig. Figure 6 is a schematic view of the sliding device from below. Fig. Figure 7 is a schematic cross-sectional view of the slide device, showing a cross-section of a connecting column of the slide body and a connecting section of the mounting part. Fig. Figure 8 is a schematic view showing a detached state of the attachment part before it is attached to a base end of a pull-piece attachment column of the slide body. Fig. Figure 9 is a schematic view showing an attached state of the mounting part attached to the base end of the pull-piece mounting column of the slide body. Fig. Figure 10 is a schematic view showing a process in which the attachment part is attached to the base end of the pull-piece attachment column of the slide body. Fig. Figure 11 is a schematic view showing a process in which the attachment part is attached to the base end of the pull-piece attachment column of the slide body. Fig. Figure 12 is a schematic view showing a process in which the attachment part is attached to the base end of the pull-piece attachment column of the slide body. Fig. Figure 13 is a perspective view of the mounting part. Fig. Figure 14 shows a top view of the mounting part. Fig. Figure 15 shows a view of the mounting part from below. Fig. Figure 16 shows a rear view of the mounting part. Fig. Figure 17 is a front view of the mounting part. Fig. Figure 18 is a side view of the mounting part. Fig. Figure 19 is a top view of a sliding device according to a modified example. Fig. Figure 20 is a view of a sliding device according to a modified example from below. Fig. Figure 21 is a schematic view of a zipper according to a modified example from above, wherein the attachment part is designed to prevent the fabric from being caught by the slider body. Fig. 22 is a schematic side view of the in Fig. 21 shown mounting part. Fig. Figure 23 is a schematic view showing a modified example of the mounting part, wherein the first and second arms are provided with a first and a second flange located on the left and right sides of the first wing of the slide body, and the third and fourth arms are provided with a third and a fourth flange located on the left and right sides of the second wing of the slide body. [Embodiments of the invention]

[0020] Various embodiments and features are discussed below with reference to the drawings. A person skilled in the art can combine the respective embodiments and / or features without requiring excessive explanation, and the synergistic effects of such combinations are also readily apparent. Overlapping explanations between embodiments are generally omitted. Referenced drawings primarily serve to describe the invention and have been simplified for ease of presentation. Each feature is to be understood as a universal feature applicable not only to the apparatus and method for orientation conversion discussed in this application, but also to various other apparatus and methods for orientation conversion not discussed in this description.

[0021] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. 12. First, a zipper 1 is described. Fig. Figure 1 is a schematic partial view of a zipper 1 from above. Fig. Figure 2 shows that the sliding devices 6, 7 are spaced apart from each other and are positioned in an uncoupled state on a zipper chain 2. Fig. Figure 3 shows that the sliding devices 6, 7 are adjacent and positioned in a coupled state on the zipper chain 2. Note that in Fig. 2 and Fig. 3. The illustration of the zipper chain has been omitted for the sake of simplicity. Fig. Figure 4 is a schematic perspective view of the sliding device 6, omitting the representation of a pull piece 10. Fig. Figure 5 is a schematic view of the sliding device 6 from above. Fig. Figure 6 is a schematic view of the sliding device 6 from below. Fig. Figure 7 is a schematic cross-sectional view of the slide device 6, showing a cross-section of a connecting column 23 of the slide body 8 and a connecting section 35 of the mounting part 9. Fig. Figure 8 is a schematic view showing a detached state of the attachment part 9 before attachment to a base end 24a of a pull-piece attachment column 24 of a slide body 8. Fig. Figure 9 is a schematic view showing an attached state of the attachment part 9, which is attached to the base end 24a of the pull-piece attachment column 24 of the slide body 8. Fig. Figure 10 is a schematic view showing a process in which the attachment part 9 is attached to the base end 24a of the pull-piece attachment column 24 of the slide body 8. Fig. Figure 11 is a schematic view showing a process in which the attachment part 9 is attached to the base end 24a of the pull-piece attachment column 24 of the slide body 8. Fig. Figure 12 is a schematic view showing a process in which the attachment part 9 is attached to the base end 24a of the pull-piece attachment column 24 of the slide body 8.

[0022] The zipper 1 comprises a flexible, elongated zipper chain 2 and sliders 6, 7, each attached to the zipper chain 2 such that they are movable along a center line CL of the zipper chain 2. The zipper chain 2 includes a left and a right zipper longitudinal section 3m, 3n, each zipper longitudinal section 3m, 3n having a carrier belt 4m, 4n and a dome link 5m, 5n. The carrier belt 4m, 4n comprises a base fabric of woven or knitted material or a mixture thereof and, in some cases, in addition to the base fabric, has a waterproof layer of resin formed on the base fabric. The dome link 5m, 5n may be, but is not limited to, a wire of helically wound monofilament comprising engagement heads formed at predetermined intervals along a straight line outside a belt surface of the carrier belt 4m, 4n.Alternatively, resin or metal links can be arranged at regular intervals along an opposite side edge of the support belt 4m, 4n (with gaps between adjacent links). The resin links can be injection-molded to adhere to the support belt 4m, 4n. The metal links can be swaged and attached to the support belt 4m, 4n.

[0023] A coordinate C6 is in Fig. 1 for the slide device 6 is specified, and a coordinate C7 is in Fig. 1 is defined for the sliding device 7. F stands for forward, B for backward, L for left, and R for right. The up-down direction is perpendicular to the front-back direction and the left-right direction. Note that at the respective coordinates C6, C7, the left-right directions are defined with respect to the sliding devices. The zipper chain 2 is closed by moving the sliding devices 6, 7 forward (i.e., the left and right coupling links 5m, 5n or their engagement heads alternately engage), and the zipper chain 2 is opened by moving each of the sliding devices 6, 7 backward (i.e., the alternately engaging left and right coupling links 5m, 5n or their engagement heads are disengaged).

[0024] The sliding devices 6, 7 are identical in construction and size. Each sliding device 6, 7 has a sliding body 8 and an attachment part 9, which is attached to the sliding body 8, and optionally also has a pull piece 10 (see Fig. 2 and Fig. 3) For both slide devices 6, 7, the slide body 8 is identical in construction and size, and the mounting part 9 is identical in construction and size.

[0025] The slide body 8 can be a metal component manufactured by die casting or a plastic product manufactured by injection molding. The slide body 8 has sufficient mechanical strength to guide the coupling elements 5m, 5n. The mounting part 9 is typically a plastic, elastomer, or rubber product manufactured by injection molding. The mounting part 9 is typically attached to the slide body 8 by partial elastic deformation of the mounting part 9 (e.g., at least elastic deformation of a first and a second arm as described below). Preferably, the mounting part 9 has sufficient mechanical strength and cannot be easily detached from the slide body 8 after being attached. In some embodiments, the mounting part 9 cannot be detached from the slide body 8 unless the mounting part 9 is destroyed.

[0026] The attachment part 9 is mounted on the slider body 8 as a separate component from the pull piece 10 and has a different function than the pull piece 10 (e.g., a function for simple locking between attachment parts 9, a function to prevent the slider body 8 from biting into a fabric, etc.). Of course, an embodiment is also conceivable in which the attachment part 9 has no specific function and merely serves as an accessory. In the illustrated example, each attachment part 9 has a function for simple locking between the attachment parts 9. When the sliders 6, 7 are positioned adjacent to each other on the zipper chain 2, the outer engagement sections 11 of the attachment parts 9 of the sliders 6, 7 interlock, thereby bringing the sliders 6, 7 into a simple locked state.Even if the sliding device 6 is moved backwards away from the sliding device 7, the sliding device 7 is pulled along with it, so that no opening is formed between the sliding devices 6 and 7. The same applies if the sliding device 7 is moved away from the sliding device 6.

[0027] When two attachment parts 9 are individually attached to two slider bodies 8 on the zipper chain 2, pointing in different directions, the outer engagement section 11 of one attachment part 9 is oriented so that it projects downwards, and the outer engagement section 11 of the other attachment part 9 is oriented so that it projects upwards, allowing the outer engagement sections 11 to engage with each other. This reduces the effort required for the individual design and manufacture of attachment parts with different configurations for the opposing slider bodies 8.

[0028] The slide body 8 has a first wing 21, a second wing 22, a connecting column 23 linking the first and second wings 21 and 22, a pull-piece mounting column 24 having a base end 24a connected to the first wing 21, and optionally left and right flanges 25 provided on the left and right sides of the first wing 21, respectively. The first wing 21 and the second wing 22 are positioned opposite each other to define a gap in the up-down direction. The first wing 21 has an outer surface 21a and an inner surface 21b. The second wing 22 has an outer surface 22a and an inner surface 22b. The inner surface 21b of the first wing 21 and the inner surface 22b of the second wing 22 are opposite each other and typically parallel to one another.The connecting column 23 connects the inner surface 21b of the first wing 21 and the inner surface 22b of the second wing 22. The connecting column 23 has a rearward-tapering cross-sectional shape. The first wing 21, the second wing 22, and the connecting column 23 define a Y-shaped linkage for the left and right coupling members 5m, 5n, and the optional left and right flanges 25 prevent the coupling members 5m, 5n from derailing from the linkage. Note that the first wing can also be referred to as the upper wing and the second wing as the lower wing, and vice versa.

[0029] The pull-piece attachment column 24 has the aforementioned base end 24a, an opposite end 24b on the side opposite the base end 24a, and an intermediate section 24c extending along the outer surface 21a of the first wing 21 between the base end 24a and the opposite end 24b. The pull-piece attachment column 24 is typically connected to the first wing 21 as a cantilever, as shown in the drawings, but this is not limited to this configuration; it would be possible to connect the opposite end 24b to the outer surface 21a of the first wing 21 without a gap between them. The pull-piece 10 has an attachment section (typically a rod-shaped or arc-shaped section) extending in the left-right direction and inserted into a space between the pull-piece attachment column 24 and the first wing 21.The mounting part 9 (first and second arm 31, 32 described below) limits a range of movement of the pull piece 10 between the pull piece mounting column 24 (in particular its intermediate section 24c) and the first wing 21, but this disadvantage is offset by an advantage.

[0030] The mounting part 9 has a first and a second arm 31, 32, between which the base end 24a of the pull-piece mounting column 24 is inserted on the first wing 21, a third and a fourth arm 33, 34, which are arranged on the second wing 22, and a connecting section 35 to which the first and second arms 31, 32 and the third and fourth arms 33, 34 are connected. Typically, the first and second arms 31, 32 are flat plate sections arranged on the first wing 21, and the third and fourth arms 33, 34 are similarly shaped. The connecting section 35 is positioned in front of the slide body 8 when the mounting part 9 is attached to the slide body 8 (see boundary L1 in Fig. 2), and can alternatively be referred to as the front section. The connecting section 35 has a rear surface 35j (see Fig. 7), which faces the connecting column 23 of the sliding body 8, and this rear surface 35j extends in the up-down direction at least between a position in front of the first wing 21 and a position in front of the second wing 22. Typically, the rear surface 35j is also positioned in front of the base end 24a of the pull-piece mounting column 24 and may optionally also be positioned in front of a base end of another pull-piece mounting column that is arranged on the second wing 22.

[0031] The first and second arms 31 and 32 can be shaped to be mirror images of each other. Similarly, the third and fourth arms 33 and 34 can be shaped to be mirror images of each other. Advantageously, the third and fourth arms 33, 34 are shaped to be mirror images of the first and second arms 31, 32, respectively. This allows the use of the same mounting element in an embodiment where, in addition to or as an alternative to the pull-piece mounting column 24, a pull-piece mounting column is connected to the second wing 22. Furthermore, the mounting elements would be reliably attached to the sliding bodies 8 pointing in opposite directions, as shown in the illustrated example.

[0032] An advantage of providing the third and fourth arms 33, 34 is that the sliding body 8 is inserted (or pressed) between the first and third arms 31 and 33 and / or between the second and fourth arms 32 and 34, thereby limiting relative displacement between the sliding body 8 and the mounting part 9. Preferably, the first and second arms 31, 32 are in contact with the outer surface 21a of the first wing 21 at their flat contact surfaces, and no gap is formed between them. Similarly, the third and fourth arms 33, 34 are in contact with the outer surface 22a of the second wing 22 at their flat contact surfaces, and no gap is formed between them.It should be noted, however, that the attachment of the mounting part 9 to the slide body 8 is not necessarily limited to the embodiments described above, and an embodiment is also conceivable in which the third and fourth arms 33, 34 are omitted. For example, the first wing can be pressed between a flat plate 36 described later and the arms 31, 32, so that the mounting part 9 is attached to the slide body 8.

[0033] Each of the first to fourth arms 31-34 has a proximal end 31p, 32p, 33p, 34p connected to the connecting section 35, and a distal end 31q, 32q, 33q, 34q positioned away from the connecting section 35, and typically extends in a straight line between these two ends. The first and second arms 31, 32 each have an oblique surface 31k, 32k that approaches the first wing 21 to reduce the thickness of the arm with increasing distance from the connecting section 35. The inclined surfaces 31k, 32k are upper surfaces of the first and second arms 31, 32, respectively. Similarly, the third and fourth arms 33, 34 each have an inclined surface 33k, 34k, which approaches the second wing 22 in order to reduce the thickness of the arm with increasing distance from the connecting section 35. The inclined surfaces 33k, 34k are lower surfaces of the third and fourth arms 33, 34, respectively.This can reduce the limited range of motion of the movable pull piece 10 due to the attachment part 9, even when each arm is extended from the connecting section 35, thus affecting the range of motion of the pull piece 10, which is held by the pull piece attachment column 24. The inclined surfaces 31k, 32k, 33k, 34k begin to incline near the base end 24a of the pull piece attachment column 24 and continue to incline until they reach the distal ends 31q, 32q, 33q, 34q. An acute angle formed between the inclined surface 31k, 32k, 33k, 34k and a plane perpendicular to the up-down direction can be 45° or less or 35° or less.

[0034] The connecting section 35 has a first section 35a, to which the first and second arms 31, 32 are connected; a second section 35b, to which the third and fourth arms 33, 34 are connected; and a third section 35c, which connects the first and second sections 35a and 35b, although other configurations are also possible. The first section 35a is positioned in front of the first wing 21, the second section 35b is positioned in front of the second wing 22, and the third section 35c is positioned in front of the connecting column 23. To limit relative displacement between the sliding body 8 and the mounting part 9, a pair of flat plates 36 can be connected to the third section 35c such that the section at the front end of the connecting column 23 of the sliding body 8 can be inserted between them; however, this can, of course, be omitted.

[0035] The first section 35a has a flat plate section 45 with a first surface 45a and a second surface 45b (on the side opposite the first surface 45a), as well as an outer engagement section 11 located on the second surface 45b of the flat plate section 45. A first projection 41, extending collinearly to the first arm 31, a second projection 42, extending collinearly to the second arm 32, and an intermediate recess 43, formed between the first and second projections 41 and 42, are formed on the first surface 45a of the flat plate section 45. The first arm 31 and the first projection 41 together form a straight elevation extending in the front-to-back direction. The second arm 32 and the second projection 42 together form a straight elevation extending in the front-to-back direction.A width W1 of the flat plate section 45 in the left-right direction can be smaller than a maximum width W2 of the slide body 8 in the left-right direction (see . Fig. 5) This allows the visually perceived size of the sliding devices 6, 7 to be reduced despite the attachment of the mounting part 9 to the sliding body 8.

[0036] The outer engagement section 11 is arranged upright on the second surface 45b of the flat plate section 45. The outer engagement section 11 is positioned in front of and away from the third section 35c, so that a receiving space for the outer engagement section of the mating component is formed between them. Although not necessarily limited to this, the outer engagement section 11 is positioned on the second surface 45b of the flat plate section 45 on the side opposite the intermediate recess 43. The outer engagement section 11 has a forward-facing inclined surface 11a and a leading surface 11b on the side opposite the inclined surface 11a, that is, facing the third section 35c (see Fig. 2) During the process in which the outer engagement sections 11 of the sliding devices 6, 7 interlock, one outer engagement section 11 slides over the other outer engagement section 11, and simultaneously the other outer engagement section 11 slides over the first outer engagement section 11, resulting in a state in which the contact surfaces 11b face each other or come into contact with each other (see Fig. 3) In this way, the sliding devices 6 and 7 enter a simple locking state. In the simple locking state, each external engagement section 11 is arranged between the left and right coupling members 5m, 5n.

[0037] The front surface of the third section 35c is inclined backwards along its course from the first section 35a to the second section 35b. This allows for a wider entrance to the aforementioned receiving chamber in the front-to-back direction compared to other designs, thus enabling smoother insertion and removal of the external insertion sections 11.

[0038] The first and second arms 31, 32 each have a first and a second opposite surface 51, 52 facing each other (see Fig. 8) The first arm 31 has a first opposite surface 53 on the side opposite the first opposite surface 51 and has a width from left to right defined by the first opposite surface 51 and the first opposite surface 53. The second arm 32 has a second opposite surface 54 on the side opposite the second opposite surface 52 and has a width from left to right defined by the second opposite surface 52 and the second opposite surface 54. In the example shown, the first and second opposite surfaces 51, 52 and the first and second opposite surfaces 53, 54 are all planar surfaces perpendicular to the left-right direction, but are not limited to this.It is also possible that the first and second opposing surfaces 51, 52 are inclined in a tapered manner, such that the distance between them increases with increasing distance from the connecting section 35.

[0039] The first arm 31 includes a first locking projection 61, which projects from the first opposite surface 51 towards the second arm 32 to prevent the base end 24a of the pull-piece attachment column 24, which has been inserted between the first and second arms 31, 32, from being removed. Similarly, the second arm 32 includes a second locking projection 62, which projects from the second opposite surface 52 towards the first arm 31 to prevent the base end 24a of the pull-piece attachment column 24, which has been inserted between the first and second arms 31, 32, from being removed. Typically, the first and second locking projections 61, 62 are shaped to be mirror images of each other with respect to the center line CL of the attachment part 9.

[0040] The first locking projection 61 has a guide inclined surface 61a, which extends in a direction away from the distal end 31q of the first arm 31 (the first guide surface 81 described later) and closer to the connecting section 35, approaching the second locking projection 62 (or the midline CL of the attachment part 9), and a contact surface 61b, which faces the rear surface 35j of the connecting section 35. Similarly, the second locking projection 62 has a guide inclined surface 62a, which extends in a direction away from the second guide surface 82 and closer to the connecting section 35, approaching the first locking projection 61, and a contact surface 62b, which faces the rear surface 35j of the connecting section 35.The engagement surfaces 61b and 62b prevent the base end 24a of the pull-piece attachment column 24, which has been moved beyond the first and second locking projections 61 and 62 towards the connecting section 35, from moving away from the connecting section 35. Optionally, the first locking projection 61 can have a (chamfered) flat or arcuate upper surface 61c between the guide chamfered surface 61a and the engagement surface 61b. Similarly, the second locking projection 62 can have a (chamfered) flat or arcuate upper surface 62c between the guide chamfered surface 62a and the engagement surface 62b.

[0041] A passage for the base end 24a of the pull-piece mounting column 24 is formed between the guide inclined surfaces 61a, 62a. As the base end 24a of the pull-piece mounting column 24 passes through this passage, it pushes the guide inclined surfaces 61a, 62a apart (in the left-right direction), thereby increasing the passage width and allowing the base end 24a of the pull-piece mounting column 24 to pass through. After the base end 24a of the pull-piece mounting column 24 has passed 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-piece mounting column 24 is held by the mounting part 9 in a position in front of the first and second locking projections 61, 62.

[0042] The third and fourth arms 33, 34 are typically designed symmetrically to the first and second arms 31, 32 and therefore have a third and a fourth locking projection 63, 64, the shapes of which are symmetrical to the first and second locking projections 61, 62 described above. In a case where a pull-piece mounting column is provided on the second wing 22 of the slide body 8, the third and fourth locking projections 63, 64 prevent displacement of the base end of the pull-piece mounting column in a direction away from the connecting section 35. In some cases, as in Fig. As shown in Figure 6, a projection 27 is formed on the outer surface 22a of the second wing 22, which at least partially overlaps the connecting column 23. This projection 27 is inserted between the third and fourth locking projections 63, 64, thereby enabling the attachment part 9 to be more securely attached to the sliding body 8. Note that the third and fourth arms 33, 34 and the third and fourth locking projections 63, 64 may each have different configurations than the first and second arms 31, 32 and the first and second locking projections 61, 62, respectively, and that the third and fourth locking projections 63, 64 may be configured in accordance with the shape of the projection 27.

[0043] In the present embodiment, the first locking projection 61 is offset closer to the connecting section 35 relative to the distal end 31q of the first arm 31 on the first opposite surface 51, and the first opposite surface 51 comprises a first guide surface 81 which is positioned further away from the connecting section 35 than the first locking projection 61 (see e.g. Fig. 8) The second locking projection 62 is offset relative to the distal end 32q of the second arm 32 on the second opposite surface 52 closer to the connecting section 35, and the second opposite surface 52 includes a second guide surface 82 that is positioned farther away from the connecting section 35 than the second locking projection 62. The first and second guide surfaces 81, 82 are arranged to face each other to define a guide path 85 along which the base end 24a of the pull-piece attachment column 24 moves while the attachment part 9 is attached to the slide body 8. This feature enables a smoother operation or automation of the attachment of the attachment part 9 to the pull-piece attachment column 24 of the slide body 8.

[0044] Typically, the range of motion of the pull piece 10 between the pull piece attachment column 24 (especially its intermediate section 24c) and the first wing 21 is limited by the distal ends 31q, 32q of the first and second arms 31, 32, but as compensation for this, a gentler working method or automation of the attachment of the attachment part 9 to the pull piece attachment column 24 is made possible.

[0045] The guide path 85 has a rear open end, defined between the rear end of the first guide surface 81 and the rear end of the second guide surface 82, and a front open end, defined between the front end of the first guide surface 81 and the front end of the second guide surface 82, and typically extends in a straight line to the connecting section 35. The width of the guide path 85 in the left-right direction is constant between the rear and front open ends, but is not necessarily limited to this and may gradually decrease from the rear open end to the front open end.Preferably, the guide path 85 is set such that it has the same width in the left-right direction as the base end 24a of the pull-piece mounting column 24, and the first and second arms 31, 32 do not deform elastically when the base end 24a of the pull-piece mounting column 24 passes through the guide path 85.

[0046] The first opposing surface 51 has a first contact surface 91, which is positioned closer to the connecting section 35 than the first locking projection 61; the second opposing surface 52 has a second contact surface 92, which is positioned closer to the connecting section 35 than the second locking projection 62, and the base end 24a of the pull-piece mounting column 24 is held between the first and second contact surfaces 91, 92. The first and second contact surfaces 91, 92 are in contact with the base end 24a of the pull-piece mounting column 24 (the first and second sides 24e, 24f, which point in opposite directions in the left-right direction) when the mounting part 9 has been attached to the slide body 8.

[0047] The first and second contact surfaces 91 and 92 are arranged on the left and right sides of the rear surface 35j of the connecting section 35. A raised section 35k can be formed between the rear surface 35j and the first contact surface 91, and a raised section 35i can be formed between the rear surface 35j and the second contact surface 92. The raised sections 35k and 35i have opposing surfaces shaped to at least partially correspond to the contour of the base end 24a of the pull-piece attachment column. In the example shown, the opposing surfaces include curved and flat surfaces, but are not limited to these.The receiving space of the mounting part 9 for the base end 24a of the pull-piece mounting column 24 is defined by the rear surface 35j of the connecting section 35, the first and second contact surfaces 91, 92 and the approach surfaces 61b, 62b of the first and second locking projection 61, 62 (optionally also by the opposite surfaces of the raised sections 35k, 35i).

[0048] The following descriptions focus in detail on the first and second guide surfaces 81, 82. Note that the third and fourth arms 33, 34 have a third and a fourth guide surface 83, 84, which are similar to the first and second guide surfaces 81, 82, and thus an overlapping description can be omitted.

[0049] The first and second guide surfaces 81, 82 can be spaced apart from each other so that the base end 24a of the pull-piece mounting column 24 can slide on both the first and second guide surfaces 81, 82 while the mounting part 9 is attached to the slide body 8. In this case, the mounting part 9 is positioned relative to the slide body 8 such that the base end 24a is inserted between the first and second guide surfaces 81, 82 and is guided so that it approaches the connecting section 35, while the first and second sides 24e, 24f of the base end 24a and the first and second guide surfaces 81, 82 are in contact with each other. Subsequently, the mounting part 9 can be pushed relative to the sliding body 8 in such a way that the base end 24a moves beyond the first and second locking projections 61, 62 towards the connecting section 35.Before sliding and passing over the first and second locking projections 61, 62, the attachment part 9 is precisely positioned relative to the slide body 8, which allows the attachment part 9 to be attached to the slide body 8 with less force than in situations without such positioning (the base end 24a slides and passes over the first and second locking projections 61, 62).

[0050] In some cases, the first and second guide surfaces 81, 82 are aligned parallel to each other, so that the base end 24a of the pull-piece mounting column 24 can slide smoothly between them. The first guide surface 81 can be inclined such that it moves away from the center line CL of the mounting part 9 with increasing distance from the connecting section 35, and the same applies to the second guide surface 82. That is, the first and second guide surfaces 81, 82 can be inclined in a tapered manner, such that the gap between them increases with increasing distance from the connecting section 35. In some cases, the plane in which the first guide surface 81 lies forms an acute angle of 10° or less with the center line CL of the mounting part 9, and the same applies to the second guide surface 82.

[0051] In the direction from the guide path 85 to the connecting section 35 (i.e., the front-to-back direction), the first and second guide surfaces 81, 82 are preferably longer (e.g., 5 mm or more or 8 mm or more) than the inclined guide surfaces 61a, 62a, thereby ensuring a sufficient length of the guide path 85. Additionally or alternatively, the first and second guide surfaces 81, 82 are preferably shorter in the same direction (i.e., the front-to-back direction) than the first and second contact surfaces 91, 92, thereby reducing the extent of the restriction on the range of motion of the pull piece 10.

[0052] The first guide surface 81 can be coplanar with the first contact surface 91 or can form an acute angle of 5° or less with the plane in which the first contact surface 91 lies. Furthermore, the second guide surface 82 can be coplanar with the second contact surface 92 or can form an acute angle of 5° or less with the plane in which the second contact surface 92 lies. In such cases, the space between the first and second guide surfaces 81, 82 is essentially equal to the receiving space for the base end 24a of the pull-piece attachment column 24, which is defined between the first and second contact surfaces 91, 92, thereby improving the uniformity of the appearance of the attachment part 9.

[0053] The angle between the guide inclined surface 61a of the first locking projection 61 and the plane in which the first guide surface 81 lies is preferably an acute angle in a range of 5° to 60° (for example, in a range of 5° to 50°), and / or the angle between the guide inclined surface 62a of the second locking projection 62 and the plane in which the second guide surface 82 lies is preferably an acute angle in a range of 5° to 60° (for example, in a range of 5° to 50°), thereby enabling a smoother movement of the first and second arms 31, 32 into the expanded state.

[0054] The mounting part 9 is slid onto the slide body 8 and attached to it (see Fig. 8 and Fig. 9), and this process is in Fig. 10, Fig. 11 to Fig. 12 shown. First, as in Fig. As shown in Figure 10, the base end 24a of the pull-piece mounting column 24 is inserted between the first and second arms 31, 32, specifically between the first and second guide surfaces 81 and 82 (into the guide path 85). This allows the mounting part 9 to be positioned relative to the slide body 8. During this positioning step, the base end 24a slides on both the first and second guide surfaces 81, 82, although it is also conceivable that, depending on the distance between the first and second guide surfaces 81, 82, it slides on only one surface. If the width of the guide path 85 in the left-right direction corresponds to the width of the base end 24a of the pull-piece mounting column 24 in the left-right direction, the base end 24a can be positioned without excessive force (compared to the situations in Figure 10). Fig. 11 and Fig. 12) be introduced into the leadership path 85.

[0055] Next, as in Fig. 11 and Fig. Figure 12 shows the base end 24a of the pull-piece attachment column 24 being moved beyond the first and second locking projections 61, 62 towards the connecting section 35 of the attachment part 9. With respect to Fig. 11 The attachment part 9 is pushed relative to the slide body 8 until the base end 24a of the pull-piece attachment column 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 towards the connecting section 35. As the attachment part 9 slides, the base end 24a is positioned between the guide inclined surfaces 61a, 62a and pressed by them, and synchronously, the first and second arms 31, 32 widen (i.e., they pivot away from the center line CL of the attachment part 9).

[0056] Following Fig. 11 will be, as in Fig. As shown in Figure 12, the base end 24a of the pull-piece attachment column 24 is brought into a state in which it is positioned between and pressed against the upper surfaces 61c and 62c of the first and second locking projections 61 and 62. While the attachment part 9 slides, the upper surfaces 61c, 62c slide on the first and second sides 24e, 24f of the base end 24a, respectively. At this moment, the expansion dimension of the first and second arms 31, 32 (the distance between the first and second locking projections 61 and 62 in the left-right direction) is maintained at a maximum value. As the attachment part 9 slides, the base end 24a moves beyond the first and second locking projections 61, 62 towards the connecting section 35, whereupon the first and second arms 31, 32 elastically return to their original shapes, thus completing the attachment of the attachment part 9 to the slide body 8.The first and second locking projections 61, 62 (especially the contact surfaces 61b, 62b) prevent the mounting part 9 from detaching from the slide body 8. In the fully installed state, the base end 24a does not contact the rear surface 35j of the connecting section 35, but rather the first and second contact surfaces 91, 92, the contact surfaces 61b, 62b of the first and second locking projections 61, 62, and sections (curved surfaces) of the opposing surfaces of the optional raised sections 35k, 35i.

[0057] To better understand the structure of the mounting part 9, we show Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17 to Fig. 18 the exact design of the mounting part 9 when it is detached from the sliding body 8. As from Fig. As can be seen in Figure 13, the first to fourth arms 31 to 34 extend rearward from the connecting section 35 to insert the sliding body 8 between them from above and below. The first locking projection 61 and / or the second locking projection 62 have a (e.g., flat) contact surface that touches the outer surface 21a of the first wing 21 and contributes to an increased contact area between them. The third and fourth locking projections 63, 64 have a (e.g., flat) contact surface that touches the outer surface 22a of the second wing 22, contributing to an increased contact area between them. The first guide surface 81 extends between the first locking projection 61 and a chamfered edge 31r formed between the rear surface of the first arm 31 and the first opposite surface 51.The second guide surface 82 extends between the second locking projection 62 and a chamfered edge 32r formed between the rear surface of the second arm 32 and the second opposite surface 52. The same applies to the third and fourth guide surfaces 83, 84.

[0058] As from Fig. 14 and Fig. As can be seen in Figure 15, when the first or second section 35a or 35b of the mounting part 9 is viewed by an observer, each of the first to fourth locking projections 61 to 64 is positioned on the same straight line as the flat plate 36, which contributes to improved mounting stability of the mounting part 9 on the slide body 8. Fig. As can be seen from Figure 16, the minimum distance between the raised sections 35k, 35i is equal to the distance between the flat plates 36, thus enabling an optimization or simplification of the design of the mold for the attachment part 9. As can be seen from Fig. As can be seen from Figure 17, there is a space between the first and third arms 31 and 33, and a space between the second and fourth arms 32 and 34. When the mounting part 9 is attached to the slide body 8, the front openings on the left and right sides of the connecting column 23 of the slide body 8 are located within the aforementioned spaces. Fig. As can be seen in Figure 18, the outer engagement section 11 intersects a plane that is set at a thickness position of 1 / 2 of the maximum thickness of the attachment part 9.

[0059] As in Fig. 19 and Fig. As shown in Figure 20, the mounting part 9 can have a fitting projection 37 that fits into a recess 26 of the pull-piece mounting column 24. This enables stable attachment of the mounting part 9 to the slide body 8. The fitting projection 37 extends straight rearward between the first and second arms 31, 32. It is also possible to provide a fitting projection on the pull-piece mounting column 24 and a recess in the mounting part 9.

[0060] Fig. Figure 21 is a schematic view of a zipper 1 according to a modified example from above, wherein the attachment part 9 is attached to the slider body 8 to prevent the fabric from being caught by the slider body 8. Fig. 22 is a schematic side view of the in Fig. 21 shown mounting part 9. As in Fig. 21 and Fig. As shown in Figure 22, the first and second sections 35a, 35b of the connecting section 35 are designed as a flat plate, and a guide path for the coupling elements 5m, 5n is formed between them. The fabric of an object (e.g., a garment) to which the zipper 1 is attached is made more difficult to enter the gap between the slider body 8 and the coupling elements 5m, 5n while the slider devices 6, 7 are being moved.

[0061] Fig.Figure 23 is a schematic view showing a modified example of the mounting part 9. The first and second arms 31, 32 have a first and a second flange 38 located on the left and right sides of the first wing 21 of the slide body 8, and the third and fourth arms 33, 34 have a third and a fourth flange 39 located on the left and right sides of the second wing 22 of the slide body 8. Thus, no arm needs to be a flat plate section.

[0062] Based on the above teachings, a person skilled in the art can make various modifications to the respective embodiments and features. The reference numerals contained in the claims serve only for reference purposes and are not to be used to limit the interpretation of the claims. [Reference sign] 1 zipper 2 zipper chains 3m, 3n zipper length section 6, 7 Slide device 8 slide bodies 9 Mounting part 10 pull piece 11 External intervention section 21 First Wing 22 Second wing 23 Connecting column 24 Pull-piece mounting column 24a Basic end 31 First arm 32 Second arm 33 Third Arm 34 Fourth Arm 35 Connecting section 36 flat plates 51 First opposite surface 52 Second opposite 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 Guided tour 91 First contact surface 92 Second contact surface QUOTES INCLUDED IN THE DESCRIPTION

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

[0000] CA 2419659

[0002] CN 218008498

[0002] US 10492572

[0002]

Claims

Slider device (6, 7) for a zipper, the slider device comprising: a slider body (8) comprising a first wing (21), a second wing (22), a connecting column (23) connecting the first wing (21) and the second wing (22), and a pull-piece attachment column (24) comprising a base end (24a) connected to the first wing (21); and an attachment part (9) attached to the slide body (8), wherein the attachment part (9) comprises: a first and a second arm (31, 32) between which the base end (24a) of the pull-piece attachment column (24) is inserted on the first wing (21), and a connecting section (35) to which at least the first and the second arm (31, 32) are connected; wherein the first and the second arm (31, 32) each have a first and a second opposing surface (51, 52) facing each other,wherein the first arm (31) comprises a first locking projection (61) that projects from the first opposite surface (51) towards the second arm (32) to prevent the removal of the base end (24a) of the pull-piece attachment column (24) that has been inserted between the first and second arms (31, 32), and wherein the second arm (32) comprises a second locking projection (62) that projects from the second opposite surface (52) towards the first arm (31) to prevent the removal of the base end (24a) of the pull-piece attachment column (24) that has been inserted between the first and second arms (31, 32), wherein the first locking projection (61) is offset relative to a distal end (31q) of the first arm (31) on the first opposite surface (51) closer to the connecting section (35), and the first opposite surface (51) comprises a first guide surface (81),the second locking projection (62) is positioned further away from the connecting section (35) than the first locking projection (61), wherein the second locking projection (62) is offset relative to a distal end (32q) of the second arm (32) on the second opposite surface (52) closer to the connecting section (35), and the second opposite surface (52) comprises a second guide surface (82) which is positioned further away from the connecting section (35) than the second locking projection (62), and wherein the first and second guide surfaces (81, 82) are arranged to face each other in order to define a guide path (85) along which the base end (24a) of the pull-piece attachment column (24) moves while the attachment part (9) is attached to the slide body (8). Slide device according to claim 1, wherein the first and the second guide surfaces (81, 82) are spaced apart from each other so that the base end (24a) of the pull-piece mounting column (24) can slide on both the first and the second guide surfaces (81, 82) while the mounting part (9) is attached to the slide body (8). Slide device according to claim 1 or 2, wherein the first and the second guide surfaces (81, 82) are aligned parallel to each other. Slide device according to one of claims 1 to 3, wherein the first arm (31) has an inclined surface (31k) which, in its course away from the connecting section (35), approaches the first wing (21) in order to reduce the thickness of the first arm (31), and / or the second arm (32) has an inclined surface (32k) which, in its course away from the connecting section (35), approaches the first wing (21) in order to reduce the thickness of the second arm (32). Slide device according to one of claims 1 to 4, wherein the first locking projection (61) has a first guide inclined surface (61a) which, in its course, approaches the second locking projection (62) in a direction away from the first guide surface (81) and closer to the connecting section (35), the second locking projection (62) has a second guide inclined surface (62a) which, in its course, approaches the first locking projection (61) in a direction away from the second guide surface (82) and closer to the connecting section (35), and wherein the distance between the first and the second guide inclined surface (61a, 62a) to the connecting section (35) gradually decreases. Slide device according to claim 5, wherein an angle between the first guide inclined surface (61a) and a plane in which the first guide surface (81) lies is an acute angle in a range between 5° and 60°; and / or an angle between the second guide inclined surface (62a) and a plane in which the second guide surface (82) lies is an acute angle in a range between 5° and 60°. Slide device according to claim 5 or 6, wherein a length of the first guide surface (81), measured along a predetermined direction from the guide path (85) to the connecting section (35), is greater than a length of the first guide inclined surface (61a), measured along the predetermined direction; and / or a length of the second guide surface (82), measured along the predetermined direction, is greater than a length of the second guide inclined surface (62a), measured along the predetermined direction. Slide device according to one of claims 5 to 7, wherein the first opposite surface (51) comprises a first contact surface (91) which, in a state in which the mounting part (9) has been attached to the slide body (8), is in contact with a first side (24e) of the base end (24a) of the pull-piece mounting column (24), the second opposite surface (52) comprises a second contact surface (92) which, in a state in which the mounting part (9) has been attached to the slide body (8), is in contact with a second side (24f) of the base end (24a) of the pull-piece mounting column (24), and a length of the first guide surface (81), measured along a predetermined direction directed from the guide path (85) to the connecting section (35), is shorter than a length of the first contact surface (91), measured along the predetermined direction, and a length of the second guide surface (82), measured along the predetermined direction,is shorter than the length of the second contact surface (92), measured along the predetermined direction. Slide device according to any one of claims 1 to 8, wherein the first opposing surface (51) comprises a first contact surface (91) which, in a state in which the mounting part (9) has been attached to the slide body (8), is in contact with a first side (24e) of the base end (24a) of the pull-piece mounting column (24), the second opposing surface (52) comprises a second contact surface (92) which, in a state in which the mounting part (9) has been attached to the slide body (8), is in contact with a second side (24f) of the base end (24a) of the pull-piece mounting column (24), the first guide surface (81) is coplanar with the first contact surface (91) or forms an acute angle of 5° or less with a plane in which the first contact surface (91) lies, and the second guide surface (82) is coplanar with the second contact surface (92). or forms an acute angle of 5° or less with a plane,in which the second contact surface (92) is located. Slide device according to claim 9, wherein the connecting section (35) has a first section (35a) to which the first and second arms (31, 32) are connected, a second section (35b) to which the third and fourth arms (33, 34) are connected, and a third section (35c) connecting the first section (35a) and the second section (35b), and wherein a pair of flat plates (36) is connected to the third section (35c) such that a section at the front end of the connecting column (23) of the slide body (8) can be inserted between them. Attachment part (9) which is attached separately from a pull piece (10) to a slider body (8) for a zipper, wherein the slider body (8) has a first wing (21), a second wing (22), a connecting column (23) which connects the first wing (21) and the second wing (22), and a pull piece attachment column (24) which has a base end (24a) which is connected to the first wing (21), wherein the attachment part (9) has: a first and a second arm (31, 32) between which the base end (24a) of the pull piece attachment column (24) is inserted on the first wing (21), wherein the first and the second arm (31, 32) each have a first and a second opposing surface (51, 52) which face each other, wherein the first arm (31) comprises a first locking projection (61) which is extended from the first opposite surface (51) towards the second arm (32) to prevent,that the base end (24a) of the pull-piece attachment column (24), which has been inserted between the first and the second arm (31, 32), is removed, wherein the second arm (32) comprises a second locking projection (62) extending from the second opposite surface (52) towards the first arm (31) to prevent the base end (24a) of the pull-piece attachment column (24), which has been inserted between the first and the second arm (31, 32), from being removed; and a connecting section (35) to which at least the first and the second arm (31, 32) are connected; wherein the first locking projection (61) is offset relative to a distal end (31q) of the first arm (31) on the first opposite surface (51) closer to the connecting section (35) and the first opposite surface (51) comprises a first guide surface (81) which is positioned farther away from the connecting section (35) than the first locking projection (61),wherein the second locking projection (62) is offset relative to a distal end (32q) of the second arm (32) on the second opposite surface (52) closer to the connecting section (35) and the second opposite surface (52) includes a second guide surface (82) which is positioned farther away from the connecting section (35) than the second locking projection (62), and wherein the first and second guide surfaces (81, 82) are arranged to face each other in order to define a guide path (85) along which the base end (24a) of the pull-piece attachment column (24) moves while the attachment part (9) is attached to the slide body (8). Attachment part according to claim 11, wherein the first arm (31) has an inclined surface (31k) which, in its course away from the connecting section (35), approaches the first wing (21) in order to reduce the thickness of the first arm (31), and / or the second arm (32) has an inclined surface (32k) which, in its course away from the connecting section (35), approaches the first wing (21) in order to reduce the thickness of the second arm (32). Attachment part according to claim 11 or 12, wherein the first opposite surface (51) comprises a first contact surface (91) which, in a state in which the attachment part (9) has been attached to the slide body (8), is in contact with a first side (24e) of the base end (24a) of the pull-piece attachment column (24), the second opposite surface (52) comprises a second contact surface (92) which, in a state in which the attachment part (9) has been attached to the slide body (8), is in contact with a second side (24f) of the base end (24a) of the pull-piece attachment column (24), and a length of the first guide surface (81), measured along a predetermined direction directed from the guide path (85) to the connecting section (35), is shorter than a length of the first contact surface (91), measured along the predetermined direction, and a length of the second guide surface (82). measured along the predetermined direction,is shorter than the length of the second contact surface (92), measured along the predetermined direction. Method for manufacturing a slider device (6, 7) for a zipper, wherein the slider device (6, 7) comprises: a slider body (8) comprising a first wing (21), a second wing (22), a connecting column (23) connecting the first wing (21) and the second wing (22), and a pull-piece attachment column (24) comprising a base end (24a) connected to the first wing (21); and an attachment part (9) attached to the slide body (8), wherein the attachment part (9) comprises: a first and a second arm (31, 32) between which the base end (24a) of the pull-piece attachment column (24) is inserted on the first wing (21), and a connecting section (35) to which at least the first and the second arm (31, 32) are connected; wherein the first and the second arm (31, 32) each have a first and a second opposing surface (51, 52) facing each other,wherein the first arm (31) comprises a first locking projection (61) projecting from the first opposite surface (51) towards the second arm (32), and wherein the second arm (32) comprises a second locking projection (62) projecting from the second opposite surface (52) towards the first arm (31), wherein the method comprises: a first step of inserting the base end (24a) of the pull-piece mounting column (24) of the slide body (8) into a space between the first and the second arms (31, 32); and a second step following the first step of moving the base end (24a) of the pull-piece mounting column (24) of the slide body (8) beyond the first and the second locking projections (61, 62) towards the connecting section (35) of the mounting part (9), wherein the first step comprises,the base end (24a) of the pull-piece attachment column (24) is inserted into a space between a first guide surface (81) of the first opposite surface (51) of the first arm (31) and a second guide surface (82) of the second opposite surface (52) of the second arm (32), such that the base end (24a) of the pull-piece attachment column (24) slides on at least one guide surface of the first and the second guide surfaces (81, 82), wherein the first locking projection (61) is offset relative to a distal end (31q) of the first arm (31) on the first opposite surface (51) towards the connecting section (35), such that the first guide surface (81) is formed, and the second locking projection (62) is offset relative to a distal end (32q) of the second arm (32) on the second opposite surface (52) towards the connecting section (35), such that the second guide surface (82) is formed.

Images