Puller

Abstract

The utility model provides a puller. The pull head (1) is provided with a pull head body (10), the pull head body (10) is provided with an upper wing plate (20) and a lower wing plate (30), a pair of groove parts (50 and 60) is arranged on the inner surface of the upper wing plate (20) and / or the lower wing plate (30), and in the section view of the pull head body (10), under the condition that the outermost position of the outer periphery of a connecting column (40) in the width direction of the pull head is defined as the outermost position (41), the groove parts (50 and 60) are arranged in the groove parts (50 and 60). An inner groove side edge portion (52a) of each of the groove portions (50, 60) is disposed on the inner side of the outermost position (41) in the slider width direction, and an outer groove side edge portion (52b) of each of the groove portions (50, 60) is disposed on the outer side of the outermost position (41) in the slider width direction. As a result, even if a sliding operation is repeated, scraping of fastener elements caused by the inner surface of the slider main body (10) is unlikely to occur.

Description

TECHNICAL FIELD

[0001] The utility model relates to a slider for a zipper. BACKGROUND

[0002] As one of the zippers, for example, there is a zipper in which a plurality of zipper elements installed to a zipper tape are formed of metal as disclosed in International Publication No. 2009 / 128136 (Patent Document 1). Such a zipper is sometimes referred to as a metal zipper.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT DOCUMENTS

[0005] Patent Document 1: International Publication No. 2009 / 128136 SUMMARY

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] In the conventional metal zipper, generally, when the slider is slid, the slider main body comes into contact with the metal zipper element and rubs against it. For example, in a case where the slider is pulled in the direction of the surface of the zipper tape and is simultaneously slid, the slider and the zipper element are likely to rub against each other with a strong force.

[0008] Therefore, as the sliding operation of the slider is repeated, the outer surface of the metal zipper element is sometimes partially shaved, and the metal portion on the inner side of the zipper element is exposed. As a result, on the outer surface of the zipper element, a difference in color and texture (metallic feel) is generated between the portion originally formed on the zipper element and the portion on the inner side of the outer surface which is shaved and exposed, and sometimes the appearance of the zipper element is deteriorated, and the appearance quality of the metal zipper is reduced.

[0009] The utility model is made in view of the above-mentioned conventional problems, and aims to provide a slider in which shaving of the zipper element by the slider main body is unlikely to occur even if the sliding operation is repeated.

[0010] SOLUTION TO THE PROBLEM

[0011] In order to achieve the above object, the utility model provides a puller is with the puller of zipper, the puller main part has: upper wing board, lower wing board is with the upper wing board separate configuration, and the connecting column makes the front end part of the upper wing board and the front end part of the lower wing board link, in the puller, in the inner surface of the upper wing board and / or the inner surface of the lower wing board is provided with a pair of recessed groove parts that are arranged separately in the puller width direction, each recessed groove part has the inside slot side edge part arranged in the inside of the puller width direction and the outside slot side edge part arranged in the outside of the puller width direction, when observing the cross section of the puller main part that is orthogonal to the puller height direction, in the case of defining the most outer position of the outer periphery of the connecting column in the puller width direction as the most outer position, the inside slot side edge part of each recessed groove part is arranged in the position of the inside of the puller width direction than the most outer position, the outside slot side edge part of each recessed groove part is arranged in the position of the outside of the puller width direction than the most outer position.

[0012] In the puller of the utility model, preferably, the pair of recessed groove parts are provided on the inner surface of the upper wing board, and the pair of recessed groove parts are provided on the inner surface of the lower wing board.

[0013] In addition, preferably, each recessed groove part is linearly arranged along the puller length direction.

[0014] In this case, preferably, the puller main part has: a pair of upper flange parts extending from the side edge part of the upper wing board towards the lower wing board; and a pair of lower flange parts extending from the side edge part of the lower wing board towards the upper wing board, and each recessed groove part is arranged separately from the upper flange part or the lower flange part on the inside of the puller width direction of the upper flange part or the lower flange part.

[0015] In the utility model, preferably, the parting line of a mold used for forming the puller main part is included in the inner surface of the upper wing board and / or the inner surface of the lower wing board, and at least a part of the parting line is contained in each recessed groove part.

[0016] In this case, it is preferable that the slider body has a pair of upper flange portions extending from side edge portions of the upper flap toward the lower flap, a pair of lower flange portions extending from side edge portions of the lower flap toward the upper flap, a pair of shoulder openings opened at both sides of the connecting column, and a back opening opened at a back end portion of the slider body, the parting line has a first parting line extending from the connecting column on one side in the slider width direction and a second parting line extending from the connecting column on the other side in the slider width direction, the first parting line and the second parting line respectively have a first horizontal line extending from the connecting column toward the shoulder opening, a vertical line extending from a top end of the first horizontal line toward the back opening via a bent portion, and a second horizontal line extending from a top end of the back opening side of the vertical line toward the upper flange portion or the lower flange portion via a bent portion, and the entireties of at least the first horizontal line and the vertical line are included in each of the groove portions.

[0017] Effects of the Invention

[0018] According to the slider of the present application, even if the sliding operation is repeated, the slider body is less likely to cause the scraping of the slider chain. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a side view of the slider of the embodiment of the present application as viewed from the side.

[0020] Figure 2 is a front view of the slider shown in Figure 1 .

[0021] Figure 3 is a cross-sectional view of the upper flap of the slider shown in Figure 1 .

[0022] Figure 4 is a cross-sectional view of the lower flap of the slider shown in Figure 1 .

[0023] Figure 5 is an explanatory view schematically illustrating the finishing process performed on the slider body.

[0024] Figure 6 is a schematic view showing a state in which the tool body portion of the finishing device is inserted into the slider body.

[0025] EXPLANATION OF REFERENCE NUMERALS

[0026] 1, puller; 10, puller main body; 11, upper flange portion; 12, lower flange portion; 13, flange parallel portion; 14, flange curved portion; 15, demarcation position; 17, pull tab mounting portion; 18, shoulder opening; 19, rear opening; 20, upper wing plate; 21, upper wing plate inner surface (upper side chain guide surface); 22, upper wing plate outer surface (upper wing plate upper surface); 23, upper wing plate outer peripheral surface; 24, upper side main plane; 24a, central plane; 24b, side plane; 25, upper side front inclined portion; 26, upper side reference inclined portion; 26a, first upper side reference inclined portion; 26b, second upper side reference inclined portion; 27, upper side housing step portion; 27a, upper side step surface; 27b, upper side connecting surface; 28, upper side rear inclined portion; 30, lower wing plate; 31, lower wing plate inner surface (lower side chain guide surface); 32, lower wing plate outer surface (lower wing plate lower surface); 33, lower wing plate outer peripheral surface; 34, lower side main plane; 34a, central plane; 34b, side plane; 35, lower side front inclined portion; 36, lower side reference inclined portion; 36a, first lower side reference inclined portion; 36b, second lower side reference inclined portion; 37, lower side housing step portion; 37a, lower side step surface; 37b, lower side connecting surface; 38, lower side rear inclined portion; 40, connecting column; 41, outermost position; 42, column front end portion; 43, column rear end surface; 44, column side wall surface; 45, front side increasing portion; 46, rear side decreasing portion; 50, upper side groove portion; 51, groove bottom portion; 52, groove side edge portion; 52a, inner side groove side edge portion; 52b, outer side groove side edge portion; 53, first bottom surface; 54, second bottom surface; 60, lower side groove portion; 61, groove bottom portion; 62, groove side edge portion; 62a, inner side groove side edge portion; 62b, outer side groove side edge portion; 63, first bottom surface; 64, second bottom surface; 70, upper side parting line; 71, upper side first parting line; 72, upper side second parting line; 73, upper side first horizontal line; 74, upper side vertical line; 75, upper side second horizontal line; 80, lower side parting line; 81, lower side first parting line; 82, lower side second parting line; 83, lower side first horizontal line; 84, lower side vertical line; 85, lower side second horizontal line; 90, trimming tool; 91, tool main body portion; 92, opening portion; 93, corner portion. DETAILED DESCRIPTION

[0027] The present inventors have investigated and researched the cause of the scraping of the slide fastener chain by the puller. As a result, it has been ascertained that one of the causes of the scraping of the slide fastener chain by the puller is that, when the puller is slid, the slide fastener chain that moves within the chain guide path comes into contact with burrs (residual material) that are formed along the parting line of the mold used for molding the puller main body due to dimensional errors, misalignment, and the like of the mold, and protrude from the chain guide surface of the puller main body.

[0028] Moreover, it was also ascertained that, due to the shape peculiar to the puller main body, the parting line of the mold is formed continuously from the inner surface of the upper wing plate and the inner surface of the lower wing plate to the outer peripheral surface of the coupling column, and that, due to the position and posture of the slide fastener element when it moves in the element guide path of the puller main body, and the like, the burr formed in the portion of the upper wing plate and the lower wing plate near the coupling column and the burr formed in the outer peripheral surface of the coupling column sometimes come into contact with the slide fastener element.

[0029] Therefore, the present inventors and others have further repeatedly conducted research in light of the above, and as a result, have found the following and completed the present utility model: in order to make the slide fastener element less likely to be scraped by the puller main body when the puller slides, with respect to the parting line (dividing surface) of the mold provided in the puller main body, it is only necessary to provide a recessed portion in which the burr can be accommodated in the appropriate position and range of the puller main body, and moreover, by appropriately providing the recessed portion, it is also possible to prevent the occurrence of the adverse situation in which the upper wing plate and the lower wing plate are damaged as described below when performing the finishing processing in which the burr formed in the outer peripheral surface of the coupling column is removed.

[0030] Hereinafter, a preferred embodiment of the present utility model will be described with reference to the drawings. Figure 1

[0031] Figure 1 is a side view of the puller of the present embodiment, as viewed from the side. Figure 2 is a front view of the puller of the present embodiment, as viewed from the front. Figure 3 and Figure 4 are cross-sectional views of the upper wing plate and the lower wing plate of the puller of the present embodiment, respectively.

[0032] In the following description relating to the puller 1 and the slide fastener, the front-rear direction is the lengthwise direction of the puller 1, and the up-down direction is the direction along which the puller 1 slides when it is installed in the element row of the slide fastener (refer to Figure 1 ). In this case, the direction in which the puller 1 is moved so that the element row of the slide fastener engages is set as the front direction (shoulder opening side direction), and the direction in which the puller 1 is moved so that the element row separates is set as the rear direction (back opening side direction).

[0033] The up-down direction is the heightwise direction of the puller 1, and is, for example, the direction orthogonal to the upper wing plate 20 and the lower wing plate 30 of the puller main body 10 described below (refer to Figure 1 and Figure 2 ). In this case, the direction in which the pull tab (not shown) is installed with respect to the puller main body 10 of the puller 1 is set as the upper direction, and the direction opposite thereto is set as the lower direction.

[0034] The left-right direction is the widthwise direction of the puller 1, and is the direction orthogonal to the lengthwise direction and the heightwise direction of the puller 1 (refer to Figure 2 ​The inner side in the left-right direction is a direction toward the center line or center plane in the left-right direction in the puller main body 10, and the outer side in the left-right direction is a direction away from the center line or center plane.

[0035] The puller 1 of the present embodiment is used for a zipper (not shown) having a pair of left and right zipper tapes on which a plurality of zipper teeth are mounted. In this case, although not shown, the zipper has a pair of left and right zipper tapes, the puller 1 mounted to the tooth rows of the zipper tapes, a first stopper member provided adjacent to the front end portions of the left and right tooth rows, and a second stopper member provided adjacent to the rear end portions of the left and right tooth rows.

[0036] Each of the left and right zipper tapes has a tape-shaped zipper tape woven and a plurality of metal zipper teeth mounted to the opposite tape side edge portions of the zipper tape. Each of the zipper teeth has a tooth head portion provided with an engagement protrusion and an engagement recess, and a pair of tooth leg portions bifurcated from the tooth head portion and extending in the left-right direction. The tooth rows are continuously formed by the plurality of zipper teeth mounted to the zipper tape along the tape length direction of the zipper tape.

[0037] The first stopper member and the second stopper member are provided adjacent to the front end portions and the rear end portions of the tooth rows, respectively, in order to prevent the puller 1 from falling off from the tooth rows.

[0038] Further, the zipper tape of the present embodiment is not particularly limited as long as the zipper teeth are formed of metal. The shape and size of the first stopper member and the second stopper member are also not particularly limited. The zipper can be formed without providing at least one of the first stopper member and the second stopper member, or the zipper can be formed by providing a separation insert instead of the second stopper member.

[0039] The puller 1 of the present embodiment is mounted to the tooth rows of the left and right zipper tapes. The puller 1 is slidable along the tooth rows in a direction in which the zipper teeth are engaged (front direction) and a direction in which the zipper teeth are separated (rear direction).

[0040] The puller 1 is formed of two components, the puller main body 10 and a pull tab (not shown). The puller main body 10 is manufactured by die casting a metal such as an aluminum alloy or a zinc alloy. In the present utility model, the material and the manufacturing method of the puller main body are not particularly limited.

[0041] The pull tab (not shown) has, for example, a pull tab body portion that becomes the grip portion, a left and right pair of arm portions that extend from one end portion of the pull tab body portion, and a mounting shaft portion that links between the tip end portions of the arm portions, and the same pull tab as conventionally used can be used. In addition, in the present application, the pull tab can be formed so as to be mountable to the pull tab mounting portion described later of the pull head body, and the shape, configuration, size, material, and the like of the pull tab are not particularly limited.

[0042] The pull head body 10 of the present embodiment has a shape that is left-right symmetrical with the center line in the left-right direction in the pull head body 10 as a reference. The pull head body 10 has an upper wing plate 20, a lower wing plate 30 that is disposed separately from the upper wing plate 20, a link column 40 that links between the front end portion of the upper wing plate 20 and the front end portion of the lower wing plate 30, left and right upper flange portions 11 that are disposed at the left and right side edge portions of the upper wing plate 20 and extend toward the lower wing plate 30, left and right lower flange portions 12 that are disposed at the left and right side edge portions of the lower wing plate 30 and extend toward the upper wing plate 20, and a pull tab mounting portion 17 that stands up from the upper surface of the upper wing plate 20 and extends in the front-rear direction. A pull tab (not shown) is mounted to the pull tab mounting portion 17.

[0043] In the pull head body 10 of the present embodiment, the outermost position 41 of the link column 40 is defined as the outermost position of the link column 40 when observing a cross section that passes through the center position in the up-down direction of the link column 40 and is orthogonal to the up-down direction (see, for example, FIG. 2). Figure 3 and Figure 4

[0044] The upper flange portion 11 of the pull head body 10 has a flange parallel portion 13 that extends in the front-rear direction in such a manner that the interval between the left and right upper flange portions 11 is a constant size, and a flange curved portion 14 that extends toward the front from the front end portion of the flange parallel portion 13 and the interval between the left and right upper flange portions 11 increases toward the front (see, for example, FIG. 2). Figure 3

[0045] The lower flange portion 12 has a flange parallel portion 13 that extends in the front-rear direction in such a manner that the interval between the left and right lower flange portions 12 is a constant size, and a flange curved portion 14 that extends toward the front from the front end portion of the flange parallel portion 13 and the interval between the left and right lower flange portions 12 increases toward the front (see, for example, FIG. 2). In addition, the interval between the left and right upper flange portions 11 and the interval between the left and right lower flange portions 12 refer to the distance in the left-right direction between the flange inner surfaces of the left and right upper flange portions 11 or the left and right lower flange portions 12. Figure 4

[0046] ​​​In the upper flange portion 11 and the lower flange portion 12, a position in the front-rear direction between the flange parallel portion 13 and the flange curved portion 14 is defined as a boundary position 15. In the slider main body 10 of the present embodiment, the boundary position 15 of the upper flange portion 11 and the boundary position 15 of the lower flange portion 12 are disposed at the same position in the front-rear direction of the slider main body 10.

[0047] A left and right pair of shoulder ports 18 that open on the left and right sides of the connecting post 40 are formed at the front end portion of the slider main body 10. A back port 19 that opens toward the rear is formed at the rear end portion of the slider main body 10. The back port 19 is surrounded by the upper wing plate 20, the lower wing plate 30, the left and right upper flange portions 11, and the left and right lower flange portions 12. A Y-shaped chain guide path that communicates the left and right shoulder ports 18 and the back port 19 is formed between the upper wing plate 20 and the lower wing plate 30. At the left and right side edge portions of the slider main body 10, a belt penetration gap through which a slide fastener tape (not shown) of a slide fastener penetrates is formed between the upper flange portion 11 and the lower flange portion 12. The belt penetration gap communicates with the chain guide path.

[0048] The inner surface of the slider main body 10 has a chain guide surface that faces the chain guide path. The movement of the slide fastener chain in the slider main body 10 is guided by the chain guide surface. The chain guide surface has an upper wing plate inner surface (upper chain guide surface) 21 provided at the upper wing plate 20, a lower wing plate inner surface (lower chain guide surface) 31 provided at the lower wing plate 30, a flange inner surface of the left and right upper flange portions 11, and a flange inner surface of the left and right lower flange portions 12.

[0049] An upper wing plate outer surface (upper wing plate upper surface) 22 that is disposed on the opposite side of the upper wing plate inner surface 21 and faces the upper side, and an upper wing plate outer peripheral surface 23 that is disposed along the outer periphery of the upper wing plate 20 and is continuous with the upper wing plate outer surface 22 and the upper wing plate inner surface 21 are provided at the upper wing plate 20. A lower wing plate outer surface (lower wing plate lower surface) 32 that is disposed on the opposite side of the lower wing plate inner surface 31 and faces the lower side, and a lower wing plate outer peripheral surface 33 that is disposed along the outer periphery of the lower wing plate 30 and is continuous with the lower wing plate outer surface 32 and the lower wing plate inner surface 31 are provided at the lower wing plate 30. The upper wing plate outer peripheral surface 23 and the lower wing plate outer peripheral surface 33 are disposed facing a direction orthogonal to the up-down direction.

[0050] For example, as Figure 3As shown, the upper wing plate inner surface 21 has an upper side main plane 24 formed in parallel with the front-rear direction, a left and right pair of upper side front inclined portions 25 provided at end portions on the left and right shoulder ports 18 sides, an upper side reference inclined portion 26 provided on both sides of each upper side front inclined portion 25, and an upper side housing step portion 27 disposed on the inner side of the fastener guide path adjacent to the upper side front inclined portion 25. In addition, the upper wing plate inner surface 21 has an upper side rear inclined portion 28 provided at an end portion (rear end portion) on the rear port 19 side and a left and right pair of upper side recessed portions 50 recessed with respect to the upper side main plane 24.

[0051] Further, in the present application, the end portions (sometimes also referred to as shoulder port side end portions) of the upper wing plate inner surface 21 and the lower wing plate inner surface 31 on the shoulder port 18 side are portions of the upper wing plate 20 or the lower wing plate 30 that extend from the shoulder port 18 of the slider main body 10 toward the inner side of the fastener guide path. In addition, the shoulder port side end portions can also be said to be portions of the upper wing plate inner surface 21 or the lower wing plate inner surface 31 adjacent to the shoulder port 18 and the areas near thereto. The end portions (sometimes also referred to as rear port side end portions) of the upper wing plate inner surface 21 and the lower wing plate inner surface 31 on the rear port 19 side are portions of the upper wing plate 20 or the lower wing plate 30 that extend from the rear port 19 toward the inner side of the fastener guide path. In addition, the rear port side end portions can also be said to be portions of the upper wing plate inner surface 21 and the lower wing plate inner surface 31 adjacent to the rear port 19 and the areas near thereto.

[0052] The upper side main plane 24 of the upper wing plate 20 is formed by a flat surface disposed orthogonal to the up-down direction. When the upper wing plate inner surface 21 is viewed from the lower side (see FIG. 2), the upper side main plane 24 is disposed in a range between the front end positions of the left and right upper flange portions 11 and the upper side rear inclined portion 28 in the front-rear direction, and is disposed between the left and right upper flange portions 11 in the left-right direction. Figure 3

[0053] The upper side main plane 24 has a central plane 24a disposed between the pair of upper side recessed portions 50 and a pair of side planes 24b disposed at positions on the outer sides in the left-right direction than the upper side recessed portions 50. By the upper side main plane 24 thus having the central plane 24a and the side planes 24b, even though the upper side recessed portions 50 are provided in the upper wing plate inner surface 21, it is possible to stably support the engaged left and right fastener chains from the up-down direction within the fastener guide path of the slider main body 10 together with the lower side main plane 34 of the lower wing plate 30 to be described later.

[0054] ​The upper forward-sloping portions 25 are disposed on the left and right shoulder-side ends of the inner surface 21 of the upper wing plate. The upper forward-sloping portions 25 are configured to prevent at least a portion of the zipper teeth from contacting the inner surface 21 of the upper wing plate, both for zipper teeth entering the zipper tooth guide path from the shoulder opening 18 of the zipper head body 10 and for zipper teeth moving towards the shoulder opening 18. The left and right upper forward-sloping portions 25 have mutually symmetrical shapes. Each upper forward-sloping portion 25 has an inclined surface that slopes towards the shoulder opening 18, thereby reducing the thickness of the upper wing plate 20. The thickness of the upper wing plate 20 refers to the vertical dimension between the inner surface 21 and the outer surface 22 of the upper wing plate.

[0055] When viewing the upper wing 20 from below (see reference) Figure 3 The upper front inclined portion 25 has upper reference inclined portions 26 on both sides, which are inclined in such a way as to reduce the thickness of the upper wing plate 20 towards the shoulder opening 18. The upper reference inclined portion 26 has a first upper reference inclined portion 26a disposed between the upper front inclined portion 25 and the connecting post 40 and a second upper reference inclined portion 26b disposed between the upper front inclined portion 25 and the upper flange portion 11. By providing the first upper reference inclined portion 26a and the second upper reference inclined portion 26b, the upper front inclined portion 25 is provided separately from the connecting post 40 and the upper flange portion 11, respectively.

[0056] The upper reference inclined portion 26 is formed to bulge downward or protrude downward in a manner that is closer to the lower wing plate 30 than the upper front inclined portion 25. Therefore, the inclined surface of the upper front inclined portion 25 is formed to be recessed relative to the inclined surfaces of the two adjacent upper reference inclined portions 26.

[0057] By having the shape described above for the upper reference inclined portion 26, for example, when the zipper teeth move within the tooth guide path of the zipper head body 10 while contacting the inner surface 21 of the upper wing plate, the tooth head and / or tooth leg of the zipper teeth can be stably contacted with at least one of the upper reference inclined portions 26. Furthermore, at least a portion of the zipper teeth can be separated from the upper forward inclined portion 25, forming a non-contact portion that does not contact the inner surface 21 of the upper wing plate at least a portion of the zipper teeth.

[0058] Therefore, when the zipper pull 1 slides, within the zipper tooth guide path of the zipper pull body 10, the zipper teeth can be kept in an appropriate posture by utilizing the upper reference inclined portion 26 while moving forward or backward. At the same time, at least a portion of the zipper teeth can be kept in a non-contact state relative to the upper forward inclined portion 25 of the upper wing plate 20. Therefore, even if the zipper teeth contact the shoulder end of the inner surface 21 of the upper wing plate when the zipper pull 1 slides, the zipper teeth are less likely to be scraped by the upper wing plate 20.

[0059] The upper side housing step portions 27 of the upper panel 20 are provided to house the first stopper member when the slider 1 is stopped by the first stopper member abutting against the slider 1. The upper side housing step portions 27 each have a flat upper side step face 27a and an upper side connecting face 27b.

[0060] The upper side step face 27a of the upper side housing step portion 27 is formed by a plane orthogonal to the vertical direction. The upper side step face 27a is disposed at a position inward of the upper side front inclined portion 25 in the direction of entry of the chain teeth, and is formed adjacent to the upper side front inclined portion 25. The direction of entry of the chain teeth is a direction from the shoulder port 18 toward the inside of the chain guide path, for example, a direction from the shoulder port 18 toward an intermediate point between the connecting post 40 and the upper flange portion 11.

[0061] The upper side step face 27a of the upper side housing step portion 27 is formed smoothly continuous with the upper side front inclined portion 25, and is formed concavely with respect to the upper side main plane 24. The upper side connecting face 27b of the upper side housing step portion 27 is disposed between the upper side step face 27a and the upper side main plane 24. The upper side connecting face 27b is formed by an inclined face inclined with respect to the upper side step face 27a and the upper side main plane 24, and is formed smoothly continuous with the upper side step face 27a and the upper side main plane 24.

[0062] The upper side rear inclined portion 28 of the upper panel 20 is provided at an end portion of the upper panel inner face 21 on the rear port 19 side. For example, when a cross section (not shown) of the upper panel 20 orthogonal to the left-right direction is observed, the upper side rear inclined portion 28 has an inclined face inclined in a manner that the thickness dimension of the upper panel 20 is reduced toward the rear port 19. Also, the inclined face of the upper side rear inclined portion 28 has a curved face curved in a manner that bulges convexly toward the lower panel 30 (or toward the chain guide path). In the case of the present embodiment, the inclined face of the upper side rear inclined portion 28 is formed as a curved face of a convex face shape in the entirety of the front-rear direction of the upper side rear inclined portion 28.

[0063] By providing the upper side rear inclined portion 28 in this way, even when the chain teeth come into contact with the rear port side end portion of the upper panel inner face 21 during sliding of the slider 1, the chain teeth can be prevented or suppressed from being strongly rubbed against the upper side rear inclined portion 28, so that the chain teeth are less likely to be shaved by the upper panel 20.

[0064] The pair of upper side groove portions 50 each have a shape concave with respect to the upper side main plane 24. Each upper side groove portion 50 is provided in a straight line shape along the front-rear direction in a manner that a portion of the connecting post 40 is contained inside the upper side groove portion 50. In other words, the upper side groove portion 50 is provided in the left-right direction in a manner that overlaps the portion of the connecting post 40.

[0065] A pair of upper side groove portions 50 are disposed apart from each other in the left-right direction. Each upper side groove portion 50 is disposed apart from the upper flange portion 11 toward the inner side in the left-right direction. By thus disposing the left and right upper side groove portions 50, the above-mentioned central plane 24a and side plane 24b of the upper side main plane 24 can be stably provided.

[0066] Each upper side groove portion 50 has a groove bottom portion 51 having a plane, and a pair of groove side edge portions 52 provided on both sides of the groove bottom portion 51 in the left-right direction. The groove side edge portion 52 has an inner side groove side edge portion 52a disposed at a position further inward in the left-right direction than the groove bottom portion 51, and an outer side groove side edge portion 52b disposed at a position further outward in the left-right direction than the groove bottom portion 51.

[0067] The groove bottom portion 51 of the upper side groove portion 50 is disposed at a position (i.e., a position further upward than the upper side main plane 24) further away from the below-mentioned lower side main plane 34 of the lower wing plate 30 than the upper side main plane 24 of the upper wing plate 20 in the up-down direction. The left-right direction dimension (width dimension) of the groove bottom portion 51 is set to a constant size on the whole of the groove bottom portion 51 in the front-rear direction, except for a range (portion) in which the connecting column 40 is formed.

[0068] When a cross section of the upper wing plate 20 is viewed from the lower side, each upper side groove portion 50 has a substantially rectangular shape that is continuous from the shoulder port 18 side to the rear port 19 side of the upper wing plate 20 in the front-rear direction, except for a range (portion) in which the connecting column 40 is formed. If explained specifically, in the present embodiment, each upper side groove portion 50 is continuously formed from a position further forward than the outermost position 41 of the connecting column 40 to a position further rearward than the boundary position between the upper side main plane 24 and the upper side rear inclined portion 28. When a cross section of the upper wing plate 20 is viewed from the lower side, the groove bottom portion 51 of the upper wing plate 20 has a substantially oblong shape that is longer in the front-rear direction.

[0069] The groove bottom portion 51 of the upper side groove portion 50 is formed in a manner that smoothly continues with the first upper side reference inclined portion 26a provided forward of the groove bottom portion 51. The groove bottom portion 51 has a first bottom surface 53 formed by a plane orthogonal to the up-down direction, and a second bottom surface 54 that extends rearward from the first bottom surface 53 and is curved in a convex shape in the front-rear direction. In the present embodiment, the dimension of the groove depth of the upper side groove portion 50 is set to 0.01 mm or more and 0.1 mm or less. Here, the dimension of the groove depth of the upper side groove portion 50 is the dimension in the up-down direction between the upper side main plane 24 and the first bottom surface 53 of the groove bottom portion 51.

[0070] Since the size of the groove depth of the upper-side groove portion 50 is 0.01 mm or more, even if burrs are formed along the later-described upper-side parting line 70 of the upper flap 20 when the puller body 10 is molded, the burrs can be accommodated in the upper-side groove portion 50 to prevent or suppress the position of the burrs from protruding with respect to the upper-side main plane 24. Since the size of the groove depth is 0.1 mm or less, even if the upper-side groove portion 50 is provided on the upper flap inner surface 21, the upper-side groove portion 50 can be less conspicuous to prevent the appearance quality of the puller body 10 from being reduced. In addition, the strength of the upper flap 20 can be stably ensured.

[0071] The groove bottom portion 51 of each upper-side groove portion 50 has a size of 10% or more and 40% or less of the interval between the flange parallel portions 13 of the left and right upper flanges 11 in the left-right direction. By the groove bottom portion 51 having a size of 10% or more of the interval between the flange parallel portions 13, the upper-side parting line 70 of the mold can be easily set in the upper-side groove portion 50. By each groove bottom portion 51 having a size of 40% or less of the interval between the flange parallel portions 13, the upper-side main plane 24 can be formed wider on the upper flap inner surface 21, and thus the zipper chain passing in the chain guide path of the puller body 10 can be stably guided by the upper flap 20.

[0072] The first bottom surface 53 of the groove bottom portion 51 is continuously formed in the front-rear direction from a position on the front side of the outermost position 41 of the connecting column 40 to a position on the rear side of the boundary position between the upper-side main plane 24 and the upper-side rear inclined portion 28. In other words, the first bottom surface 53 of the groove bottom portion 51 is formed longer in the front-rear direction than the range in the front-rear direction from the outermost position 41 of the connecting column 40 to the boundary position between the upper-side main plane 24 and the upper-side rear inclined portion 28. Thus, as described later, the upper-side parting line 70 of the mold for molding the puller body 10 can be easily set longer in the upper-side groove portion 50 (particularly, the first bottom surface 53 of the groove bottom portion 51).

[0073] The second bottom surface 54 of the groove bottom portion 51 has an inclined surface that is inclined in such a manner that the thickness dimension of the upper flap 20 decreases toward the rear. In other words, the inclined surface of the second bottom surface 54 is inclined in such a manner that the up-down direction dimension of the interval from the position of the lower-side main plane 34 of the lower flap 30 to the second bottom surface 54 of the upper flap 20 increases toward the rear. The inclined surface preferably has a curved surface that is curved convexly upward. In the present embodiment, the entire front-rear direction of the second bottom surface 54 is formed by the curved convex surface.

[0074] Since the bottom 51 of the upper recess 50 has a second bottom surface 54, no steps or uneven shapes are formed between the bottom 51 of the upper recess 50 and the upper rearward inclined portion 28 disposed behind the bottom 51 of the recess, allowing the inclined surfaces of the bottom 51 and the upper rearward inclined portion 28 to be smoothly continuous in the front-back direction. Therefore, even with the upper recess 50 provided, it is not easily noticeable, preventing or suppressing a decrease in the appearance quality of the slider 1. Furthermore, the thickness of the upper wing plate 20 can be appropriately ensured at its rear end, thus preventing a reduction in strength caused by the provision of the upper recess 50.

[0075] The inner groove edge 52a of each upper groove portion 50 is positioned inside the left-right direction from the outermost position 41 of the connecting column 40. The outer groove edge 52b of each upper groove portion 50 is positioned outside the left-right direction from the outermost position 41 of the connecting column 40. That is, the left-right regions formed by each upper groove portion 50 are respectively arranged such that at least a portion of the outer peripheral surface of the connecting column 40 (specifically, at least a portion of the left-right oriented sidewall surface of the outer peripheral surface of the connecting column 40) is disposed between the inner groove edge 52a and the outer groove edge 52b. In particular, each upper groove portion 50 is disposed such that the outermost position 41 of the connecting column 40 is disposed between the inner groove edge 52a and the outer groove edge 52b.

[0076] like Figure 3 As shown, the upper parting line 70 of the mold (sliding core) used for forming the slider body 10 is included in the inner surface 21 of the upper wing plate 20. The upper parting line 70 has: an upper first parting line 71, which extends from the connecting post 40 on the left side (one side) in the slider width direction; and an upper second parting line 72, which extends from the connecting post 40 on the right side (the other side) in the slider width direction.

[0077] The upper first parting line 71 and the upper second parting line 72 each have: an upper first horizontal line 73 extending from the outer peripheral surface of the connecting post 40 toward the shoulder opening 18; an upper vertical line 74 extending from the top of the upper first horizontal line 73 via a bend toward the rear opening 19; and an upper second horizontal line 75 extending from the top of the upper vertical line 74 on the rear opening 19 side via a bend toward the upper flange 11.

[0078] The first horizontal line 73 on the upper side extends in a straight line from the outermost position 41 of the outer periphery of the connecting column 40 toward the outer side in the left and right directions.

[0079] The upper side longitudinal line 74 extends linearly from the top end of the upper side first horizontal line 73 toward the rear. Specifically, the upper side longitudinal line 74 extends in the front-rear direction in a range from the outermost position 41 of the connecting post 40 to the boundary position 15 between the flange parallel portion 13 and the flange curved portion 14 in the upper flange portion 11. The upper side longitudinal line 74 is disposed obliquely with respect to the front-rear direction in such a manner that the rear end of the upper side longitudinal line 74 is disposed at a position farther outward in the left-right direction than the front end of the upper side longitudinal line 74.

[0080] The upper side second horizontal line 75 extends from the rear end of the upper side longitudinal line 74 (the boundary position 15 between the flange parallel portion 13 and the flange curved portion 14) toward the outside in the left-right direction, and is connected to the inner wall surface of the upper flange portion 11.

[0081] In each of the upper side first parting line 71 and the upper side second parting line 72 of the present embodiment, the entire upper side first horizontal line 73, the entire upper side longitudinal line 74, and a part of the upper side second horizontal line 75 are set in the upper side groove portion 50.

[0082] As shown in FIG. 6, for example, Figure 4 The lower wing plate inner surface 31 has a lower side main plane 34 formed parallel to the front-rear direction, a left-right pair of lower side front inclined portions 35 provided at end portions on the left and right of the shoulder opening 18, a lower side reference inclined portion 36 provided on both sides of each of the lower side front inclined portions 35, and a lower side accommodation step portion 37 disposed on the inner side of the chain guide path adjacent to the lower side front inclined portions 35. In addition, the lower wing plate inner surface 31 has a lower side rear inclined portion 38 provided at an end portion (rear end portion) on the rear opening 19 side and a left-right pair of lower side groove portions 60 recessed with respect to the lower side main plane 34.

[0083] The lower side main plane 34 of the lower wing plate 30 is formed of a flat surface disposed orthogonal to the up-down direction. The lower side main plane 34 has a central plane 34a disposed between the pair of lower side groove portions 60 and a pair of side planes 34b disposed at positions farther outward in the left-right direction than the lower side groove portions 60, similarly to the upper side main plane 24. By providing the upper side main plane 24 and the lower side main plane 34 as described above, even though the upper side groove portion 50 and the lower side groove portion 60 are respectively provided in the upper wing plate inner surface 21 and the lower wing plate inner surface 31, it is possible to stably support the chain head portions and the chain leg portions of the respective chain elements from the up-down direction using the central planes 24a, 34a and the side planes 24b, 34b of the upper side main plane 24 and the lower side main plane 34, respectively. Thus, it is possible to move the left and right chain elements in the chain guide path of the puller main body 10 in a proper posture.

[0084] The lower front inclined portion 35 is provided at the shoulder edge side end portion of the lower flap inner surface 31 on the left and right. The lower front inclined portion 35 is formed so as to avoid contact of at least a part of the slide fastener element with the lower flap inner surface 31 with respect to the slide fastener element entering the slide fastener element guide path from the shoulder edge 18 of the puller body 10 and with respect to the slide fastener element moving toward the shoulder edge 18. The left and right lower front inclined portions 35 have shapes that are left-right symmetrical with each other. Each of the lower front inclined portions 35 has an inclined surface inclined in a manner that the thickness dimension of the lower flap 30 is reduced toward the shoulder edge 18. Here, the thickness dimension of the lower flap 30 refers to the dimension in the up-down direction between the lower flap inner surface 31 and the lower flap outer surface 32.

[0085] When the lower flap 30 is viewed from the upper side (see FIG. 1), the lower front inclined portion 35 is provided on the left and right of the lower front inclined portion 35. The lower front inclined portion 35 is formed so as to avoid contact of at least a part of the slide fastener element with the lower flap inner surface 31 with respect to the slide fastener element entering the slide fastener element guide path from the shoulder edge 18 of the puller body 10 and with respect to the slide fastener element moving toward the shoulder edge 18. Figure 4 The lower reference inclined portions 36 are provided on the left and right of the lower front inclined portion 35 in a manner that the thickness dimension of the lower flap 30 is reduced toward the shoulder edge 18. The lower reference inclined portions 36 have the first lower reference inclined portion 36a provided between the lower front inclined portion 35 and the connecting column 40 and the second lower reference inclined portion 36b provided between the lower front inclined portion 35 and the upper flange portion 11. By providing the first lower reference inclined portion 36a and the second lower reference inclined portion 36b, the lower front inclined portion 35 is provided separately from the connecting column 40 and the upper flange portion 11.

[0086] The lower reference inclined portions 36 are formed so as to bulge upward or protrude upward closer to the upper flap 20 than the lower front inclined portion 35. Therefore, the inclined surface of the lower front inclined portion 35 is formed so as to be recessed with respect to the inclined surfaces of the two adjacent lower reference inclined portions 36.

[0087] Since the lower reference inclined portions 36 have the above-described shapes, when the slide fastener element moves in the slide fastener element guide path of the puller body 10 while contacting the lower flap inner surface 31, for example, at least a part of the slide fastener element can be formed so as not to contact the lower flap inner surface 31, similarly to the case of the upper flap 20. Therefore, even if the slide fastener element contacts the shoulder edge side end portion of the lower flap inner surface 31 when the puller 1 slides, the slide fastener element can not be easily scratched.

[0088] The left and right lower accommodation step portions 37 and the lower rear inclined portion 38 in the lower flap 30 are formed substantially similarly to the left and right upper accommodation step portions 27 and the upper rear inclined portion 28 in the upper flap 20 described above. Specifically, each of the lower accommodation step portions 37 of the lower flap 30 has a flat lower step surface 37a orthogonal to the up-down direction and a lower connecting surface 37b provided between the lower step surface 37a and the lower main surface 34 and inclined with respect to the lower step surface 37a and the lower main surface 34.

[0089] The lower side rear inclined portion 38 is provided at the end of the lower side inner surface 31 on the rear opening 19 side of the lower wing plate 30. The inclined surface of the lower side rear inclined portion 38 has a convex curved surface that curves in a convex manner toward the upper wing plate 20 as a whole in the front-rear direction of the lower side rear inclined portion 38.

[0090] The pair of lower side groove portions 60 each have a shape that is recessed with respect to the lower side main plane 34. Each of the lower side groove portions 60 is provided in a straight line shape along the front-rear direction in a manner that includes a part of the link column 40 inside the lower side groove portion 60. In other words, the lower side groove portions 60 are provided in the left-right direction in a manner that overlaps with the part of the link column 40. The pair of lower side groove portions 60 are arranged apart from each other in the left-right direction. Each of the lower side groove portions 60 is arranged apart from the upper flange portion 11 toward the inside in the left-right direction.

[0091] When the lower wing plate 30 is viewed in cross section from the upper side, each of the lower side groove portions 60 has a substantially rectangular shape that is continuous from the shoulder opening 18 side to the rear opening 19 side in the front-rear direction, except for the range (part) in which the link column 40 is formed. If explained in detail, in the present embodiment, each of the lower side groove portions 60 is continuously formed from a position on the front side of the outermost position 41 of the link column 40 to a position on the rear side of the boundary position between the lower side main plane 34 and the lower side rear inclined portion 38. In the present embodiment, the pair of lower side groove portions 60 in the lower wing plate 30 are provided in the left-right direction in positions that correspond to the pair of upper side groove portions 50 in the upper wing plate 20.

[0092] When the puller body 10 is formed using a mold, each of the upper side groove portions 50 of the upper wing plate 20 and each of the lower side groove portions 60 of the lower wing plate 30 are formed using front and rear sliding cores of the mold, as described later. The upper side groove portions 50 and the lower side groove portions 60 have substantially rectangular shapes that are continuous along the front-rear direction, as described above, and thus, by using the front and rear sliding cores, undercut portions (Japanese: undercuts) are not formed on the left and right sides of the link column 40 of the puller body 10, and the pair of upper side groove portions 50 and the pair of lower side groove portions 60 can be stably and smoothly formed.

[0093] Each of the lower side groove portions 60 has a groove bottom portion 61 that has a flat surface, and a pair of groove side edge portions 62 that are provided on the left and right sides of the groove bottom portion 61. The groove side edge portions 62 have an inner side groove side edge portion 62a that is arranged at a position inside in the left-right direction from the groove bottom portion 61, and an outer side groove side edge portion 62b that is arranged at a position outside in the left-right direction from the groove bottom portion 61.

[0094] The groove bottom portion 61 of the lower-side groove portion 60 is disposed at a position (i.e., a position on the lower side than the lower-side main plane 34) further from the upper-side main plane 24 of the upper wing plate 20 in the vertical direction. When the cross section of the lower wing plate 30 is viewed from the upper side, the groove bottom portion 61 of the lower wing plate 30 has a substantially rectangular shape that is long in the front-rear direction, except for a range (portion) in which the connecting column 40 is formed, and the left-right direction dimension (width dimension) of the groove bottom portion 61 is set to a constant size over the entire front-rear direction of the groove bottom portion 61. The groove bottom portion 61 is formed in a manner that is smoothly continuous with the first lower-side reference inclined portion 36a disposed in front of the groove bottom portion 61.

[0095] The groove bottom portion 61 of the lower-side groove portion 60 has a first bottom surface 63 formed by a plane orthogonal to the vertical direction, and a second bottom surface 64 extending rearward from the first bottom surface 63 and curved in a convex shape in the front-rear direction. In the present embodiment, the dimension of the groove depth of the lower-side groove portion 60 is set to 0.01 mm or more and 0.1 mm or less in the same manner as the dimension of the groove depth of the upper-side groove portion 50. Here, the dimension of the groove depth of the lower-side groove portion 60 is the dimension in the vertical direction between the lower-side main plane 34 and the first bottom surface 63 of the groove bottom portion 61. In addition, the dimension of the groove depth of the lower-side groove portion 60 is preferably the same size as the dimension of the groove depth of the upper-side groove portion 50.

[0096] The groove bottom portion 61 of each lower-side groove portion 60 has a size of 10% or more and 40% or less of the interval between the left and right flange parallel portions 13 of the left and right upper flange portions 11 in the left-right direction. Thereby, it is easy to set the parting line of the mold within the lower-side groove portion 60. In addition, the lower-side main plane 34 can be formed wider in the lower wing plate inner surface 31, and thus the lower wing plate 30 can be used to stably guide the zipper teeth passing in the zipper tooth guide path of the puller body 10.

[0097] The first bottom surface 63 of the groove bottom portion 61 in the lower-side groove portion 60 is continuously formed from a position on the front side than the outermost position 41 of the connecting column 40 to a position on the rear side than the boundary position between the lower-side main plane 34 and the lower-side rear inclined portion 38 in the front-rear direction. In other words, the first bottom surface 63 of the groove bottom portion 61 is formed longer in the front-rear direction than the range in the front-rear direction from the outermost position 41 of the connecting column 40 to the boundary position between the lower-side main plane 34 and the lower-side rear inclined portion 38.

[0098] The second bottom surface 64 of the groove bottom 61 is formed by an inclined surface that decreases in thickness toward the rear. In other words, the inclined surface of the second bottom surface 64 is inclined such that the vertical dimension of the distance from the position of the upper main plane 24 of the upper wing plate 20 to the second bottom surface 64 of the lower wing plate 30 increases toward the rear. This inclined surface preferably has a curved surface that curves upward into a convex shape. In this embodiment, the entire second bottom surface 64 in the front-rear direction is formed by a convex curved surface. By providing such a second bottom surface 64 at the groove bottom 61 of the lower wing plate 30, similar to the case of the upper groove portion 50, the lower groove portion 60 can be made less conspicuous. In addition, the reduction in strength caused by the provision of the lower groove portion 60 at the rear end of the lower wing plate 30 can be prevented.

[0099] The inner groove edge 62a of each lower groove portion 60 is positioned inside the left-right direction from the outermost position 41 of the connecting column 40. The outer groove edge 62b of each lower groove portion 60 is positioned outside the left-right direction from the outermost position 41 of the connecting column 40. The left-right regions formed by each lower groove portion 60 are respectively arranged such that at least a portion of the outer peripheral surface of the connecting column 40 (specifically, at least a portion of the left-right oriented sidewall surface of the outer peripheral surface of the connecting column 40) is disposed between the inner groove edge 62a and the outer groove edge 62b. In particular, each lower groove portion 60 is disposed between the inner groove edge 62a and the outer groove edge 62b with the outermost position 41 of the connecting column 40 disposed.

[0100] like Figure 4 As shown, the lower wing plate 30 contains a lower parting line 80 on its inner surface 31, which is used for forming the mold (sliding core) of the slider body 10. The lower parting line 80 is provided in essentially the same way as the upper parting line 70 provided on the upper wing plate 20. That is, the lower parting line 80 has: a lower first parting line 81, which extends from the connecting post 40 on the left side (one side) in the slider width direction; and a lower second parting line 82, which extends from the connecting post 40 on the right side (the other side) in the slider width direction.

[0101] The lower first parting line 81 and the lower second parting line 82 each have: a lower first horizontal line 83 extending from the outer peripheral surface of the connecting post 40 toward the shoulder opening 18; a lower vertical line 84 extending from the top of the lower first horizontal line 83 via a bend toward the rear opening 19; and a lower second horizontal line 85 extending from the top of the lower vertical line 84 on the rear opening 19 side via a bend toward the lower flange 12. In the lower first parting line 81 and the lower second parting line 82, the entire lower first horizontal line 83, the entire lower vertical line 84, and a portion of the lower second horizontal line 85 are set within the lower recess 60.

[0102] At the time of cutting the link column 40 in a cross section at a central position in the up-down direction of the link column 40 in a manner orthogonal to the up-down direction (refer to, for example, FIG. 6) Figure 3 and Figure 4 ), the link column 40 of the puller main body 10 has a column front end portion 42 facing the front direction, a column rear end surface 43 in the shape of a circular arc facing the rear opening 19 side, and a pair of left and right column side surfaces 44 disposed between the column front end portion 42 and the column rear end surface 43.

[0103] The link column 40 has a front side increasing portion 45 in which the interval between the left and right column side surfaces 44 increases toward the rear direction, and a rear side decreasing portion 46 in which the interval between the left and right column side surfaces 44 decreases toward the rear direction, at the time of the cross section. The front side increasing portion 45 is disposed on the front side of the rear side decreasing portion 46. The outermost position 41 of the link column 40 is set at a portion of the column side surface 44 of the link column 40 between the front side increasing portion 45 and the rear side decreasing portion 46. The outermost position 41 can also be provided in the entire predetermined range formed along the front-rear direction.

[0104] Next, a method of manufacturing the puller 1 of the present embodiment will be described.

[0105] First, the puller main body 10 and a pull tab (not shown) of the puller 1 are respectively manufactured. In addition, in the present embodiment, the manufacturing method of the pull tab is not particularly limited.

[0106] The puller main body 10 is manufactured by performing die casting of metal using a mold (not shown) for the puller main body 10. In this case, the mold has a mold main body and front and rear sliding cores disposed in a manner that can be inserted and removed with respect to the mold main body. The chain guide path, the pair of upper groove portions 50, and the pair of lower groove portions 60 of the puller main body 10 are formed using the front and rear sliding cores of the mold.

[0107] The parting line of the mold indicating the division position of the front and rear sliding cores has an upper side parting line 70 set with respect to the upper wing plate inner surface 21 of the upper wing plate 20 and a lower side parting line 80 set with respect to the lower wing plate inner surface 31 of the lower wing plate 30 (refer to, for example, FIG. 7) Figure 3 and Figure 4 ). In addition, in the present embodiment, the position and length, etc. of the parting line of the mold other than the upper side parting line 70 and the lower side parting line 80 are not particularly limited.

[0108] The die casting is performed by using the mold in which the upper side parting line 70 and the lower side parting line 80 are set as shown in Figure 3 and Figure 4 , thereby forming the puller main body 10 having a shape before the pull tab mounting portion 17 mounts the pull tab. At this time, in the formed puller main body 10, burrs are sometimes formed along the parting line of the mold due to dimensional errors, misalignment, etc. of the mold.

[0109] Therefore, in the present embodiment, after the die casting process of the slider main body 10, a finishing device using a finishing tool 90 as shown in Figs. 9A and 9B (sometimes referred to as a finisher) is used for the finished slider main body 10 to perform a finishing process (finishing machining) of removing burrs formed in the upper side main plane 24 of the upper wing plate 20, the lower side main plane 34 of the lower wing plate 30, and the outer peripheral surface of the connecting column 40, and the like, inside the slider main body 10 (in the chain guide path). Figure 5 and Figure 6 The finishing tool 90 shown in Figs. 9A and 9B is provided so as to be movable in the front-rear direction with respect to the slider main body 10, and is formed so as to be capable of inserting a part of the finishing tool 90 from the rear opening 19 of the slider main body 10 into the chain guide path and the belt through gap of the slider main body 10.

[0110] Figure 5 and Figure 6 The finishing tool 90 shown in Figs. 9A and 9B is provided so as to be movable in the front-rear direction with respect to the slider main body 10, and is formed so as to be capable of inserting a part of the finishing tool 90 from the rear opening 19 of the slider main body 10 into the chain guide path and the belt through gap of the slider main body 10.

[0111] The finishing tool 90 has a tool body portion 91 that can be inserted into the chain guide path of the slider main body 10, and an opening portion 92 formed toward the rear from the front end of the tool body portion 91. When the tool body portion 91 is inserted into the slider main body 10, the connecting column 40 of the slider main body 10 is inserted into the opening portion 92 of the finishing tool 90.

[0112] The thickness dimension between the upper surface and the lower surface of the tool body portion 91 is set to the same size as the interval between the upper side main plane 24 of the upper wing plate inner surface 21 and the lower side main plane 34 of the lower wing plate inner surface 31 in the slider main body 10. The maximum value of the left-right direction dimension of the opening portion 92 of the tool body portion 91 is set to the same size as the maximum value of the left-right direction dimension of the connecting column 40 of the slider main body 10 (i.e., the left-right direction dimension of the outermost position 41 of the connecting column 40).

[0113] In the finishing process, first, the slider main body 10 that is the machining target is fixed by being placed on a slider fixing portion (not shown) of the finishing device. Next, the finishing tool 90 is inserted into the chain guide path from the rear opening 19 of the slider main body 10 that is fixed to the slider fixing portion.

[0114] Thus, even if burrs are formed in, for example, the outer peripheral surface of the connecting column 40, the upper side main plane 24 of the upper wing plate 20, the lower side main plane 34 of the lower wing plate 30, the inner wall surface of the flange parallel portion 13 of the upper flange portion 11, and the inner wall surface of the flange parallel portion 13 of the lower flange portion 12 when the slider main body 10 is formed, the formed burrs can be cut off by the tool body portion 91 of the finishing tool 90.

[0115] For example, when the tool body portion 91 is viewed from the front side, the tool body portion 91 has four corner portions 93 adjacent to the opening portion 92, and it is possible to remove burrs formed along the outermost positions 41 of the connecting columns 40 with the portion of the tool body portion 91 including the four corner portions 93. In addition, when the puller body 10 and the tool body portion 91 are viewed from the front side in a state where the tool body portion 91 of the dressing tool 90 is inserted into the puller body 10, it is possible to see the gaps formed by the upper groove portion 50 and the lower groove portion 60 outside the upper and lower directions of each corner portion 93 of the tool body portion 91 (see FIG. 6). Figure 6

[0116] On the other hand, in the dressing process of the puller body 10, when the puller body 10 is fixed to the puller fixing portion of the dressing device, for example, there are cases where the posture of the puller body 10 is slightly tilted with respect to the posture suitable for dressing processing, and where a dimensional error occurs between the puller body 10 and the tool body portion 91 of the dressing tool 90.

[0117] Here, for example, a case where the upper groove portion 50 and the lower groove portion 60 of the present embodiment are not formed in the upper wing plate inner surface 21 and the lower wing plate inner surface 31 of the puller body 10 is described. In this case, when the tool body portion 91 is inserted into the puller body 10 in a state where a dimensional error occurs between the puller body 10 and the tool body portion 91 when the tool body portion 91 is inserted into the puller body 10 fixed in a slightly tilted posture, for example, an adverse situation occurs where at least one of the above-described four corner portions 93 of the tool body portion 91 scrapes the upper wing plate inner surface 21 and / or the lower wing plate inner surface 31 of the puller body 10 to damage these inner surfaces.

[0118] In relation to this, as described above, the puller body 10 of the present embodiment is formed with a pair of upper groove portions 50 in the upper wing plate inner surface 21 of the puller body 10, and is formed with a pair of lower groove portions 60 in the lower wing plate inner surface 31. In addition, the inner side groove side edge portion 52a of each upper groove portion 50 and the inner side groove side edge portion 62a of each lower groove portion 60 are disposed at positions inside the left and right directions from the outermost positions 41 of the connecting columns 40. Furthermore, the outer side groove side edge portion 52b of each upper groove portion 50 and the outer side groove side edge portion 62b of each lower groove portion 60 are disposed at positions outside the left and right directions from the outermost positions 41 of the connecting columns 40.

[0119] Thus, even if the puller body 10 is fixed to the puller fixing portion of the dressing device in a slightly tilted posture, or even if a dimensional error occurs between the puller body 10 and the tool body portion 91, it is possible to pass the corner portions 93 of the tool body portion 91 within the range where the upper groove portions 50 and the lower groove portions 60 of the puller body 10 are formed in the left and right directions of the puller body 10 when the tool body portion 91 of the dressing tool 90 is inserted into the puller body 10.​

[0120] As a result, the corner portion 93 of the cutter body portion 91 can be moved in the front-rear direction in such a manner that the upper inner surface 21 and the lower inner surface 31 of the upper flap portion and the lower flap portion of the puller body 10 avoid (stay away from) the corner portion 93 of the cutter body portion 91. Therefore, it is possible to prevent or suppress the case where the corner portion 93 directly contacts the upper inner surface 21 and the lower inner surface 31 of the puller body 10 and damages these inner surfaces.

[0121] For the puller body 10 on which the trimming process is performed, a puller tab (not shown) prepared separately is then combined to the puller tab mounting portion 17 of the puller body 10 and held to the puller tab mounting portion 17, and the puller tab mounting portion 17 is plastically deformed in such a manner that the puller tab does not fall off from the puller tab mounting portion 17 toward the upper flap portion 20. Thus, the puller 1 of the present embodiment in which the puller tab is mounted to the puller body 10 is manufactured.

[0122] In addition, the manufactured puller 1 is slidably mounted to the fastener chain of the left and right slide fastener tapes to form a slide fastener.

[0123] According to the puller 1 of the present embodiment as described above, the pair of upper-side groove portions 50 along the front-rear direction are formed in the upper inner surface 21 of the upper flap portion 20, and the pair of lower-side groove portions 60 along the front-rear direction are formed in the lower inner surface 31 of the lower flap portion 30. In addition, the upper-side parting line 70 is provided in the upper-side groove portion 50 of the upper flap portion 20, and the lower-side parting line 80 is provided in the lower-side groove portion 60 of the lower flap portion 30.

[0124] Thus, even if burrs are formed in the upper inner surface 21 and the lower inner surface 31 of the puller 1 along the parting lines of the mold when the puller 1 is molded, the burrs can be accommodated in the upper-side groove portion 50 and the lower-side groove portion 60, and the position of the burrs with respect to the upper inner surface 21 and the lower inner surface 31 is prevented or suppressed from protruding into the fastener guide path. Therefore, even if the puller 1 of the present embodiment is used for a slide fastener and the sliding operation of the puller 1 is repeatedly performed, the burrs formed in the upper inner surface 21 and the lower inner surface 31 of the puller 1 are less likely to contact the slide fastener fasteners.

[0125] Thus, it is possible to prevent or suppress the case where the slide fastener fasteners are abraded by the burrs formed in the upper inner surface 21 and the lower inner surface 31 of the puller body 10. As a result, even if the sliding operation of the puller 1 is repeatedly performed, the appearance quality of the slide fastener is less likely to be degraded due to the exposure of the metal portion on the inner side of the slide fastener fasteners. Thus, it is possible to easily maintain the appearance of the slide fastener for a long period of time.

[0126] In addition, according to the slider 1 of the present embodiment, after the die casting of the slider main body 10, when the obtained slider main body 10 is subjected to the finishing processing of deburring, even if the slider main body 10 is fixed to the finishing device in a slightly inclined posture as described above, the finishing tool 90 of the finishing device can be prevented or suppressed from damaging the upper flap inner surface 21 and the lower flap inner surface 31 of the slider main body 10. Thus, the yield of the slider 1 can be improved.

[0127] Furthermore, the present application is not limited to the embodiments described above, and various changes can be made as long as the structure is substantially the same and the same effects are obtained.

[0128] For example, in the above-described embodiments, the upper flap 20 and the lower flap 30 of the slider main body 10 are respectively provided with the upper-side groove portion 50 and the lower-side groove portion 60. However, in the present application, the slider main body can be formed by providing the groove portion in only one of the upper flap and the lower flap.

[0129] In addition, in the above-described embodiments, the upper-side groove portion 50 provided in the upper flap 20 and the lower-side groove portion 60 provided in the lower flap 30 are each formed in a straight line shape extending straight in the front-rear direction. However, in the present application, at least a part of the upper-side groove portion and / or at least a part of the lower-side groove portion can be formed in a straight line shape along a direction inclined with respect to the front-rear direction, or can be curved toward the inner side or the outer side in the left-right direction, for example. Also, at least a part of the upper-side groove portion and / or at least a part of the lower-side groove portion can be formed such that the groove width of the upper-side groove portion and / or the groove width of the lower-side groove portion increases or decreases toward the rear.

[0130] Furthermore, in the present application, the position of the parting line (the upper-side parting line and the lower-side parting line) of the mold set for the slider main body is not particularly limited as long as the parting line is partially included in at least a part of the upper-side groove portion of the upper flap and the lower-side groove portion of the lower flap.

[0131] In the above-described embodiments, the case where the slider 1 is used for a zipper (metal zipper) having a plurality of metal zipper teeth has been described. However, the slider of the present application can also be used for a zipper (i.e., a zipper other than a metal zipper) in which a plurality of zipper teeth other than metal zipper teeth are attached to a zipper tape.

Claims

1. A puller which is a puller for a slide fastener, the puller having a puller main body (10) which has an upper wing plate (20), a lower wing plate (30) disposed separately from the upper wing plate (20), and a connecting column (40) connecting between a front end portion of the upper wing plate (20) and a front end portion of the lower wing plate (30), characterized in that a pair of groove portions are disposed on an inner surface of the upper wing plate (20) and / or an inner surface of the lower wing plate (30) so as to be disposed separately from each other in a puller width direction, each of the groove portions has an inner side groove side edge portion (52a) disposed on an inner side in the puller width direction and an outer side groove side edge portion (52b) disposed on an outer side in the puller width direction, when a cross section of the puller main body (10) orthogonal to a puller height direction is observed, in a case where an outermost position in the puller width direction among outer peripheries of the connecting column (40) is defined as an outermost position (41), the inner side groove side edge portion (52a) of each of the groove portions is disposed at a position on an inner side in the puller width direction from the outermost position (41), and the outer side groove side edge portion (52b) of each of the groove portions is disposed at a position on an outer side in the puller width direction from the outermost position (41).

2. The puller according to claim 1, characterized in that the pair of groove portions are disposed on the inner surface of the upper wing plate (20), the pair of groove portions are disposed on the inner surface of the lower wing plate (30).

3. The puller according to claim 1, characterized in that each of the groove portions is disposed in a linear shape along a puller length direction.

4. The puller according to claim 1, characterized in that the puller main body (10) has a pair of upper flange portions (11) extending from side edge portions of the upper wing plate (20) toward the lower wing plate (30) and a pair of lower flange portions (12) extending from side edge portions of the lower wing plate (30) toward the upper wing plate (20), each of the groove portions is disposed separately from the upper flange portion (11) or the lower flange portion (12) on an inner side in the puller width direction of the upper flange portion (11) or the lower flange portion (12).

5. The puller according to claim 1, characterized in that a parting line (70, 80) of a mold used for molding the puller main body (10) is included in the inner surface of the upper wing plate (20) and / or the inner surface of the lower wing plate (30), at least a part of the parting line (70, 80) is included in each of the groove portions.

6. The puller according to claim 5, characterized in that the puller main body (10) has a pair of upper flange portions (11) extending from side edge portions of the upper wing plate (20) toward the lower wing plate (30), a pair of lower flange portions (12) extending from side edge portions of the lower wing plate (30) toward the upper wing plate (20), a pair of shoulder openings (18) opened on both sides of the connecting column (40), and a back opening (19) opened at a back end portion of the puller main body (10), ​ The parting lines (70, 80) have a first parting line (71, 81) extending from the connecting post (40) on one side in the slider width direction and a second parting line (72, 82) extending from the connecting post (40) on the other side in the slider width direction, The first parting line (71, 81) and the second parting line (72, 82) each have a first horizontal line (73, 83) extending from the connecting post (40) toward the shoulder port (18), a vertical line (74, 84) extending from the top end of the first horizontal line (73, 83) toward the back port (19) via a bent portion, and a second horizontal line (75, 85) extending from the top end of the back port (19) side of the vertical line (74, 84) toward the upper flange portion (11) or the lower flange portion (12) via a bent portion, The entireties of the first horizontal line (73, 83) and the vertical line (74, 84) are included in each of the groove portions.

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