Slider for slide fastener

Abstract

The utility model relates to a puller for a zipper. The mounting cover (40) of the slider (1) has flexibility that allows elastic deformation of the mounting cover (40) along with increase or decrease of the interval between the first leg part (41) and the second leg part (42), so that the mounting cover (40) can be snap-fitted to the mounted part (5) of the slider body (10). Furthermore, the attachment cover (40) has at least one contact projection (60) that forms a fulcrum for the elastic deformation of the claw member (30) by contacting the claw member (30) in a state in which the attachment cover (40) is attached to the portion (5) to be attached of the slider body (10).

Description

TECHNICAL FIELD

[0001] The utility model relates to the puller for zipper. BACKGROUND

[0002] The puller disclosed in Patent Literature 1 has a problem that the stopper body is exposed to the outside, which makes the appearance of the puller undesirable. In this regard, the pullers disclosed in Patent Literature 2 to Patent Literature 4 have a cover (also called a pull tab holding body) and have an advantage that the stopper body is hidden in the cover. Such a cover is attached to the puller body by plastic deformation of either or both of the cover and the puller body (Patent Literature 2, Patent Literature 3) or by elastic deformation of the cover (Patent Literature 4). In addition, Patent Literature 5 discloses a puller of a special structure that does not have a pull tab, and the puller has a stopper body that is attached to the puller body by elastic deformation of the stopper body (Patent Literature 5). Figure 7 FIG. 1 illustrates that a protrusion for a pawl is provided in the operation cover portion.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: International Publication No. 2015 / 004763

[0006] Patent Literature 2: International Publication No. 2023 / 157146

[0007] Patent Literature 3: Specification of Chinese Patent No. 106307831

[0008] Patent Literature 4: Japanese Patent Application Publication No. 2004-344313

[0009] Patent Literature 5: International Publication No. 2020 / 129217 SUMMARY

[0010] PROBLEMS TO BE SOLVED BY THE INVENTION

[0011] In the case where the cover is elastically deformed to be attached to the puller body, it is preferable to design the cover to be elastically deformable, and therefore, it is a common practice to adopt a pawl member of a slightly complex shape having a plate spring portion inclined upwardly to reliably compress the pawl member between the cover and the puller body (see Patent Literature 4). Figure 2 、 Figure 5 However, for the pawl member of such a shape, it is worth reevaluating from the viewpoint of reducing the manufacturing cost of the pawl member and the manufacturing cost of the puller.

[0012] From the above-described non-limiting example explanation, the present inventors have found a new problem that, for a puller in which a cover is attached to a puller body by elastic deformation, it is desirable to adopt a pawl member of a simpler shape and / or a more common shape.

[0013] SOLUTION TO THE PROBLEM

[0014] The zipper puller has: a puller main body including an upper wing plate, a lower wing plate, and a connecting column connecting the upper wing plate and the lower wing plate; a pull piece rotatably mounted on the puller main body and including a free end and a base end portion, the base end portion including a cam; a claw member mounted on the puller main body in a manner that the cam of the pull piece is inserted therebetween, the claw member being capable of changing a posture between a locking posture and a locking release posture according to rotation of the cam accompanying rotation of the pull piece; and a mounting cover mounted on a mounted portion of the puller main body to prevent the pull piece and the claw member from falling off the puller main body, the mounting cover including a main plate and a first leg portion and a second leg portion opposite to each other, the first leg portion and the second leg portion extending downward from the main plate, respectively.

[0015] The zipper puller has: a puller main body including an upper wing plate, a lower wing plate, and a connecting column connecting the upper wing plate and the lower wing plate; a pull piece rotatably mounted on the puller main body and including a free end and a base end portion, the base end portion including a cam; a claw member mounted on the puller main body in a manner that the cam of the pull piece is inserted therebetween, the claw member being capable of changing a posture between a locking posture and a locking release posture according to rotation of the cam accompanying rotation of the pull piece; and a mounting cover mounted on a mounted portion of the puller main body to prevent the pull piece and the claw member from falling off the puller main body, the mounting cover including a main plate and a first leg portion and a second leg portion opposite to each other, the first leg portion and the second leg portion extending downward from the main plate, respectively.

[0016] In some embodiments, the mounted portion has a plurality of engaged portions, the mounting cover has a plurality of engaging portions individually engaging the plurality of engaged portions, the first leg portion includes one or more first engaging portions included in the plurality of engaging portions, and the second leg portion includes one or more second engaging portions included in the plurality of engaging portions.

[0017] In some embodiments, the first leg portion has at least one abutting protrusion, and the at least one abutting protrusion protrudes downward beyond the one or more first engaging portions or protrudes downward from the one or more first engaging portions.

[0018] In some embodiments, the at least one abutting protrusion is located at a different height than all of the plurality of engaging portions or at least one of the plurality of engaging portions in the mounting cover. Further, the at least one abutting protrusion is located at a lower height than all of the plurality of engaging portions or at least one of the plurality of engaging portions in the mounting cover.

[0019] In some embodiments, the at least one abutting protrusion has a wedge shape that narrows toward the bottom in a side view.

[0020] In some embodiments, the installed portion includes left and right walls that are adjacently arranged at intervals in the width direction of the slider body, and the mounting cover includes one or more displacement restriction portions that are inserted between the left and right walls to restrict displacement of the mounting cover in the width direction of the slider body.

[0021] In some embodiments, the first leg portion has a first displacement restriction portion included in the one or more displacement restriction portions, and / or the second leg portion has a second displacement restriction portion included in the one or more displacement restriction portions.

[0022] In some embodiments, the first displacement restriction portion is directly connected to the at least one abutting protrusion or forms the same protrusion as the at least one abutting protrusion.

[0023] In some embodiments, the one or more displacement restriction portions include one or more third displacement restriction portions that protrude downward from the main plate at a position between the first leg portion and the second leg portion and are inserted between the left and right walls. In some embodiments, the mounting cover is a frame body that has a three-sided shape with a main plate, a first leg portion, and a second leg portion and is open to the side downward, a first curved portion is formed between the main plate and the first leg portion, and a second curved portion is formed between the main plate and the second leg portion.

[0024] In some embodiments, the claw member has a claw end, a cam receiving portion that receives the cam, an opposite end on the opposite side of the claw end, and an intermediate portion that extends between the cam receiving portion and the opposite end, and the at least one abutting protrusion abuts the intermediate portion of the claw member.

[0025] In some embodiments, the at least one abutting protrusion is located at the lowest point in the mounting cover.

[0026] In some embodiments, the first leg portion and the second leg portion are opposite in the direction of movement of the slider for opening and closing the slide fastener.

[0027] In some embodiments, the installed portion includes left and right walls that are adjacently arranged at intervals in the width direction of the slider body, and neither side surface of the left and right walls that faces the opposite side in the width direction of the slider body is covered by the mounting cover.

[0028] The mounting cover can be mounted to the installed portion in various forms and methods, but it is preferable that plastic deformation of the slider body and / or the mounting cover is not required and that mounting can be performed based on snap fit alone. That is, the mounting cover is not fastened and mounted to the installed portion. By omitting plastic processing such as a fastening and mounting process, equipment or processes for assembling the slider can be simplified, and low-costing of the slider can be promoted. However, the use of optional additional processes such as ultrasonic welding, laser welding is not excluded.

[0029] In some embodiments, the mounting cover and / or the mounted portion have a symmetrical shape.

[0030] In some cases, the puller main body, the pull tab, the claw member, and the mounting cover are colored in the same color.

[0031] Effects of the Invention

[0032] According to the technical scheme of the present application, for the puller with the mounting cover by means of elastic deformation, the claw member with a simpler shape and / or a more common shape can be promoted. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is an exploded perspective view of the puller of one aspect of the present application.

[0034] Figure 2 is a perspective view of the puller in an assembled state.

[0035] Figure 3 is an exploded side view of the puller.

[0036] Figure 4 is a side view of the puller in an assembled state.

[0037] Figure 5 is a top view of the puller.

[0038] Figure 6 is a front view of the puller.

[0039] Figure 7 is a perspective view of the cover.

[0040] Figure 8 is a top view of the puller main body.

[0041] Figure 9 is a central sectional view of the puller in a pull tab down state.

[0042] Figure 10 is a central sectional view of the puller in a pull tab upside-down state.

[0043] Figure 11 is an assembly process diagram of the puller.

[0044] Figure 12 is an assembly process diagram of the puller.

[0045] Figure 13 is an assembly process diagram of the puller.

[0046] Figure 14 is a top view of the puller of another aspect.

[0047] Figure 15is a side view of another form of the pull tab.

[0048] Figure 16 is a center sectional view of another form of the pull tab.

[0049] Figure 17 is an elevation view of a modification of the pull tab.

[0050] Figure 18 is a center sectional view of a modification of the pull tab.

[0051] Figure 19 is a center sectional view of a modification of the pull tab.

[0052] Figure 20 is a center sectional view of a modification of the pull tab.

[0053] BRIEF DESCRIPTION OF DRAWINGS

[0054] 1, pull tab; 5, mounting portion; 10, pull tab main body; 11, upper wing plate; 12, lower wing plate; 13, connecting column; 20, pull tab; 21, free end; 24, cam; 30, claw member; 31, claw end; 32, cam receiving portion; 33, opposite end; 34, intermediate portion; 40, mounting cover; 41, first leg portion; 42, second leg portion; 45, main plate; 60, abutment protrusion; 8, right wall; 8', left wall. DETAILED DESCRIPTION

[0055] Hereinafter, various embodiments and features will be described with reference to the accompanying drawings. Those skilled in the art can combine the embodiments and / or features without undue effort and can understand the complementary effects brought by the combination. Repetitive explanations between the embodiments are omitted in principle. The description of the utility model is mainly for the purpose of the drawings, and is simplified for the convenience of drawing. The features are not effective only for the pull tab and the manufacturing method thereof disclosed in the present utility model, but can be understood as being generally applicable to various pull tabs and manufacturing methods thereof not disclosed in the present specification.

[0056] The structure of the pull tab 1 will be mainly described with reference to Figures 1 to 8 Figure 1 ​As shown, with respect to the puller 1, a front-rear direction Dl, a left-right direction D2, and an up-down direction D3 are defined. The front-rear direction Dl coincides with the direction of movement of the puller 1 for opening and closing the slide fastener. The left-right direction D2 is a direction orthogonal to the front-rear direction, parallel to the plane in which the upper web 11 and / or the lower web 12 are disposed. The up-down direction D3 is orthogonal to both the front-rear direction Dl and the left-right direction D2. In addition, advancing of the puller 1 causes the left and right slide fastener elements (not shown) to engage with each other, and retracting of the puller 1 causes the left and right slide fastener elements (not shown) to disengage with each other. In addition, the width direction of the puller 1 or the constituent members of the puller 1 such as the puller main body 10 coincides with the left-right direction D2. The puller 1 is an assembly of four members, including the puller main body 10, the pull tab 20, the claw member 30, and the mounting cover 40. The puller main body 10 is a metal member that is press-molded or a resin member that is injection-molded. The same applies to the pull tab 20. The claw member 30 is a metal member or a resin member, and is preferably a single sheet of metal that is bent at multiple locations. The claw member 30 is manufactured, for example, by punching a metal sheet and performing bending processing. The mounting cover 40 is typically a resin member that is injection-molded, but can also be a metal member or a composite member of metal and resin.

[0057] In some cases, the puller main body 10, the pull tab 20, the claw member 30, and the mounting cover 40 are colored before assembly of the puller 1. By doing so, the individual members do not have different color tones, and the appearance of the puller 1 can be improved. Preferably, the mounting cover 40 is not fastened to the puller main body 10 (the mounting portion 5 described later). In this case, the process restriction of performing the coloring process after plastic deformation caused by the fastening process (otherwise, the colored layer peels off or the color tone changes at the plastic deformation site) can be relaxed. In addition, it is possible to combine members of different colors. Even without equipment or jigs, assembly can be performed manually, and thus the restriction on the assembly equipment can also be relaxed. Most of the claw member 30 is hidden in the mounting cover 40, and the appearance of the puller 1 is improved. In addition, with respect to coloring, painting, plating, and / or any kind of chemical conversion treatment can be employed.

[0058] The puller main body 10 includes the upper web 11, the lower web 12, and a link column 13 that links the upper web 11 and the lower web 12. The front end of the upper web 11 and the front end of the lower web 12 are linked by the link column 13. The upper web 11 and the lower web 12 are flat plates that are oriented parallel to each other and have the same shape in profile (when viewed from above or below). The upper web 11 has a claw hole 11j for the claw end 31 of the claw member 30, which is simply a hole that penetrates the upper web 11. The link column 13 is located in the left-right center of the puller main body 10, and has a rear end that narrows in a wedge shape toward the rear. From the viewpoint of preventing the cloth from being caught, and the like, other shapes of the upper web 11 and the lower web 12 different from those shown can also be employed.

[0059] The upper wing plate 11 and the lower wing plate 12 have left and right front edges 11a, 11b, 12a, 12b that are respectively farther away from the center line CL as they extend rearward along the center line CL of the puller 1, and left and right side edges 11c, 11d, 12c, 12d that are respectively closer to the center line CL as they extend rearward along the center line CL of the puller 1 from the rear ends of the front edges 11a, 11b, 12a, 12b. To the side edges 11c, 11d of the upper wing plate 11, rails 14 that project toward the lower wing plate 12 are joined, and the chain passage in the puller body 10 is restricted in the width direction thereof. As an addition or an alternative, to the side edges 12c, 12d of the lower wing plate 12, rails 15 that project toward the upper wing plate 11 are joined, thereby promoting the same effect.

[0060] Front mouths M1, M2 (see Figure 6 ) are formed on the left and right sides of the coupling column 13, and a rear mouth M3 (see Figure 1 ) is formed rearward of the coupling column 13. The puller body 10 has a Y-shaped chain passage that branches in correspondence with the coupling column 13, and the non-engaged left and right zipper chains enter the puller body 10 via the above-mentioned front mouths M1, M2, and the engaged left and right zipper chains exit from the puller body 10 via the above-mentioned rear mouth M3. The puller body 10 (in the illustrated case, the upper wing plate 11) has a mounted portion 5 to which a cover 40 is mounted. The mounted portion 5 pivotally supports the pull tab 20 (in detail, the shaft portion 23 of the base end portion 22 of the pull tab 20 described later) and is shaped so as to accommodate the claw member 30. In some cases (as illustrated), the mounted portion 5 includes the right wall 8 and the left wall 8' that are adjacently disposed at intervals in the width direction of the puller body 10, and between them is at least partially demarcated a receiving groove 87 for receiving the claw member 30. In the illustrated example, the receiving groove 87 is formed so as to further extend forward than the right wall 8 and the left wall 8', but is not limited to such a size and shape. To the right wall 8 and the left wall 8' are respectively formed upwardly open receiving grooves 81, 81' that receive the shaft portion 23 of the pull tab 20, and the receiving grooves 81, 81' each pass through the right wall 8 and the left wall 8' in the left and right direction D2. The receiving grooves 81, 81' can extend downward to the vicinity of the upper surface of the upper wing plate 11 so as to respectively divide the right wall 8 and the left wall 8' into front and rear portions, but can also be formed more shallowly. The receiving groove 87 has a groove width W87 (see Figure 8). According to the case, the right wall 8 and the left wall 8' can sometimes include a front flange 82, 82' protruding in a mutually close manner at a front end portion thereof and / or a rear flange 83, 83' protruding in a mutually close manner at a rear end portion thereof. In this case, the receiving groove 87 has a groove width W82 coinciding with the interval between the opposing wall surfaces of the front flange 82, 82' and / or a groove width W83 coinciding with the interval between the opposing wall surfaces of the rear flange 83, 83'. By imparting the shape symmetrically to the right wall 8 and the left wall 8' (for example, as described above), the symmetric shape of the mounting cover 40 is also facilitated. In addition, the right wall 8 and the left wall 8' can be symmetrical with respect to the rotation axis RL of the pull tab 20 described later.

[0061] The claw member 30 (whether or not in contact) is placed on the bottom surface 88 of the receiving groove 87 between the right wall 8 and the left wall 8'. The bottom surface 88 is located slightly lower than the upper surface of the upper wing plate 11, whereby the pull tab 1 can be made low (in the up-down direction).

[0062] A front-side recessed portion 61 is formed at the front end surface of the right wall 8 and the left wall 8' so as to be recessed rearward at a height position directly above the upper wing plate 11. A rear-side recessed portion 62 is formed at the rear end surface of the right wall 8 and the left wall 8' so as to be recessed forward at a height position directly above the upper wing plate 11. As will be understood from the description later, the front-side recessed portion 61 and the rear-side recessed portion 62 function as the engaged portion 6 of the mounted portion 5 and are used to snap-fit the mounting cover 40 to the right wall 8 and the left wall 8'. The mounting cover 40 is provided with a plurality of engaged portions 7 (for example, protrusions) that individually engage the plurality of engaged portions 6.

[0063] The pull tab 20 is a fitting that is operated by a person in order to advance or retract the pull tab 1. The pull tab 20 is rotatably mounted to the pull tab main body 10, and in detail, the pull tab 20 is shaft-supported by the pull tab main body 10 (for example, the mounted portion 5) and is rotatable about a rotation axis RL parallel to the left-right direction D2. The pull tab 20 typically includes a free end 21 located at a position separate from the rotation axis RL, a base end portion 22 located on the opposite side of the free end 21 and extending along the rotation axis RL, a gripped portion 25 that is gripped by a person's hand (for example, the thumb and the index finger), a right connecting rod 26 extending between the right end of the base end portion 22 and the gripped portion 25, and a left connecting rod 27 extending between the left end of the base end portion 22 and the gripped portion 25. An opening is demarcated by the base end portion 22, the gripped portion 25, and the left and right connecting rods 26, 27.

[0064] The base end portion 22 of the pull tab 20 includes a shaft portion 23 and a cam 24, and in a typical case, the cam 24 is located at the center in the left-right direction D2 of the shaft portion 23. The cam 24 rotates around the rotation axis RL in correspondence with the rotation of the pull tab 20 to lift the cam receiving portion 32 of the claw member 30 described later upward (as a result, the claw end 31 described later is also lifted upward). Optionally, the cam 24 includes a cam shaft 24a coaxial with the shaft portion 23 of the pull tab 20, a first cam protrusion 24b protruding toward the free end 21 of the pull tab 20, and a second cam protrusion 24c protruding toward the opposite side from the first cam protrusion 24b. In the assembly process of the puller 1, the displacement of the claw member 30 in the front-rear direction D1 is restricted by the second cam protrusion 24c, so that the assembly efficiency and / or assembly accuracy of the puller 1 can be improved.

[0065] The claw member 30 is supported so as to be (slightly) pivotable between the puller main body 10 and the mounting cover 40 and functions as a leaf spring (refer to Figure 9 and Figure 10 ). The claw member 30 is mounted on the puller main body 10 in such a manner that the cam 24 of the pull tab 20 is interposed therebetween. The claw member 30 is elastically transformable in posture between a locked posture and a locked release posture in accordance with the rotation of the cam 24 accompanying the rotation of the pull tab 20. In detail, the claw member 30 has a claw end 31, a cam receiving portion 32, an opposite end 33 located on the opposite side of the claw end 31, and an intermediate portion 34 extending between the cam receiving portion 32 and the opposite end 33 (refer to Figure 3 ). The cam receiving portion 32 has a cup shape with three sides as viewed from the side with an opening in the lower side, which is formed by joining a back plate 32a, an upper plate 32b, and a front plate 32c. The width of the cam receiving portion 32 is wider than the widths of the opposite end 33 and the intermediate portion 34, and can reliably and stably receive force from the cam 24 of the pull tab 20. The claw end 31 extends downward from the back plate 32a of the cam receiving portion 32 and has a sharp shape capable of being engaged with the slide fastener chain. When the pull tab 20 is inverted (inverted position) ( Figure 9 ), the claw end 31 protrudes into the chain passage in the puller main body 10 to engage the slide fastener chain, and when the pull tab 20 is inverted (inverted position) ( Figure 10 ), the claw end 31 retreats upward to release the engagement of the slide fastener chain. The mounting cover 40 is mounted to the mounted portion 5 of the puller main body 10 in such a manner as to prevent the pull tab 20 and the claw member 30 from falling off from the puller main body 10. The mounting cover 40 includes a main plate 45 and first and second leg portions 41 and 42 opposite to each other. The first and second leg portions 41 and 42 extend downward from the main plate 45, respectively. In a typical case, the mounting cover 40 has a three-sided shape of the main plate 45, the first leg portion 41, and the second leg portion 42 and is open to the lower side. The main plate 45 has left and right protrusions 45p and 45q protruding downward to close the receiving grooves 81 and 81' of the right and left walls 8 and 8', but can be omitted.

[0066] A first bending portion 46 is formed between the main plate 45 and the first leg portion 41, and a second bending portion 47 is formed between the main plate 45 and the second leg portion 42. The degree of bending of the first bending portion 46 is variable, and the first leg portion 41 can be bent away from the main plate 45 in correspondence with the degree of bending. The degree of bending of the second bending portion 47 is variable, and the second leg portion 42 can be bent away from the main plate 45 in correspondence with the degree of bending. It is preferable that the mounting cover 40 does not have a left wall or a right wall that links the main plate 45 and the first leg portion 41, and the main plate 45 and the first leg portion 41 are linked only via the first bending portion 46, whereby sufficient flexibility for snap fitting can be ensured. The same description applies to the relationship between the main plate 45 and the second leg portion 42. It is preferable that the side surfaces of the right wall 8 and the left wall 8' toward the opposite sides in the width direction of the slider body 10 are not covered by the mounting cover 40.

[0067] The mounted portion 5 is sandwiched between the first leg portion 41 and the second leg portion 42. Specifically, the first engaging portion 71 of the first leg portion 41 engages with the engaged portion 6 (for example, the aforementioned front-side recess 61) of the mounted portion 5, and the second engaging portion 72 of the second leg portion 42 engages with the other engaged portion 6 (for example, the aforementioned rear-side recess 62) of the mounted portion 5. Thus, the mounting cover 40 can be mounted and fixed to the slider body 10 with sufficient strength without fastening, and the mounting cover 40 can be sufficiently inhibited from falling off from the mounted portion 5.

[0068] The first engaging portion 71 is a protrusion that protrudes rearward, and can include left and right front-side engaging portions 71a, 71b. Similarly, the second engaging portion 72 is a protrusion that protrudes forward, and can include left and right rear-side engaging portions 72a, 72b. The left and right front-side engaging portions 71a, 71b are provided at the lower end portion of the first leg portion 41 and protrude rearward, and can engage with the front-side recess 61 of the right wall 8 and the left wall 8'. The rear-side engaging portions 72a, 72b of the second leg portion 42 are provided at the lower end portion of the second leg portion 42 and protrude forward, and can engage with the rear-side recess 62 of the right wall 8 and the left wall 8'.

[0069] In the present embodiment, the mounting cover 40 has flexibility that allows elastic deformation of the mounting cover 40 in conjunction with an increase or decrease in the interval between the first leg portion 41 and the second leg portion 42, so as to be able to snap-fit the mounting cover 40 to the mounting portion 5 of the puller main body 10, and the mounting cover 40 has at least one abutting protrusion 60 that abuts against the claw member 30 in a state in which the mounting cover 40 is mounted to the mounting portion 5 to form a fulcrum for elastic deformation of the claw member 30. With the puller 1 in which the mounting cover 40 is mounted by elastic deformation, it is possible to facilitate adoption of a claw member 30 of a simpler shape and / or a more common shape. The mounting cover 40 is positioned with respect to the mounting portion 5 of the puller main body 10 by snap fitting, and thus the abutting position of the abutting protrusion 60 with respect to the claw member 30 can also be positioned with good precision.

[0070] The abutting protrusion 60 is located at a height different from all of the first engaging portions 71 or at least one of the first engaging portions 71, further, a lower height than them, most preferably at the lowest point of the mounting cover 40, and thus can more reliably or accurately abut against the claw member 30. The abutting protrusion 60 can project downward from the first engaging portions 71. In the illustrated example, the abutting protrusion 60 projects downward from the left and right front side engaging portions 71a, 71b between the left and right front side engaging portions 71a, 71b. In some cases, the abutting protrusion 60 has a wedge shape that tapers toward the bottom when viewed in the side direction D2, and in the illustrated example, has a front side slope 60a and a rear side slope 60b, between which a chamfered edge 60c is formed. By causing the abutting protrusion 60 to abut against the claw member 30 with a smaller area, the pull tab 20 can be rotated with a lighter force to smoothly flex the claw member 30. The abutting protrusion 60 can also have a wedge shape that tapers toward the bottom when viewed in another direction, for example, in the front-rear direction D1.

[0071] In the illustrated example, the mounting cover 40 is symmetrically imparted a shape with respect to a prescribed plane orthogonal to the front-rear direction D1, and does not have directionality in the front-rear direction D1. Thereby, it is possible to avoid installation errors related to the installation direction of the mounting cover 40. In addition, the mounting cover 40, due to its symmetric shape, has a protrusion 60' of the same shape as the abutting protrusion 60 that projects downward between the left and right rear side engaging portions 72a, 72b from the left and right rear side engaging portions 72a, 72b. The protrusion 60' (particularly the lowest point thereof) is preferably not in contact with the puller main body 10, and thereby it is possible to facilitate more stable mounting of the mounting cover 40.

[0072] The abutment protrusion 60 abuts against the middle portion 34 of the claw member 30, more preferably, at a position closer to the opposite end 33 than the cam receiving portion 32, thereby enabling the claw member 30 to be more easily bent. As a result, the mounting cover 40 is elongated in the front-rear direction, and the claw member 30 can be more sufficiently covered (hidden). The lowest point of the abutment protrusion 60 is located lower than the upper surface of the upper wing plate 11, and of course, higher than the bottom surface 88 of the receiving groove 87.

[0073] In the assembled state of the puller 1, the middle portion 34 of the claw member 30 does not abut against the bottom surface 88 of the receiving groove 87 at a position directly below the contact point between the abutment protrusion 60, in other words, as illustrated in Figure 9 and Figure 10 there is a gap. With this structure, the claw member 30 is supported in a state of being more easily bent. In addition, the upper side fulcrum PI (contact point between the abutment protrusion 60) and the lower side fulcrum P2 (contact point between the bottom surface 88, for example) of the claw member 30 are offset in the front-rear direction, and in the illustrated example, the upper side fulcrum PI is located further rearward than the lower side fulcrum P2 in the front-rear direction Dl.

[0074] The mounting cover 40 can include one or more displacement restricting portions 9 that are inserted between the right wall 8 and the left wall 8' to restrict displacement of the mounting cover 40 in the width direction of the puller main body 10 (refer to Figure 3 ), thereby enabling displacement of the mounting cover 40 in the left-right direction D2 with respect to the mounting target portion 5 to be suppressed. The first leg portion 41 has a first displacement restricting portion 91 (included in the one or more displacement restricting portions 9), and / or the second leg portion 42 has a second displacement restricting portion 92 (included in the one or more displacement restricting portions 9). The first displacement restricting portion 91 protrudes rearward from the first engaging portion 71 and is inserted between the right wall 8 and the left wall 8' (e.g., the front flange 82, 82'). The first displacement restricting portion 91 has a lower side inclined surface that forms the same inclination as the rear side inclined surface 60b of the abutment protrusion 60 and a rear surface that extends along the up-down direction D3, but is not limited to such a shape. The second displacement restricting portion 92 protrudes forward from the second engaging portion 72 and is inserted between the right wall 8 and the left wall 8' (e.g., the rear flange 83, 83').

[0075] The first displacement restricting portion 91 is directly connected to the abutment protrusion 60 or forms the same protrusion as the abutment protrusion 60. Thus, in addition to the effect of displacement restriction of the mounting cover 40 by the first displacement restricting portion 91, it is possible to improve the mechanical strength of the abutment protrusion 60. The second displacement restricting portion 92 is directly connected to the protrusion 60' or forms the same protrusion as the protrusion 60', and the same effect is obtained.

[0076] As an addition or a substitute for the first displacement restriction portion 91 and the second displacement restriction portion 92 described above, the displacement restriction portion 9 can include one or more third displacement restriction portions 93. The third displacement restriction portion 93 protrudes downward from the main plate 45 between the first leg portion 41 and the second leg portion 42, and the third displacement restriction portion 93 inserted between the right wall 8 and the left wall 8' can have a width substantially identical to or slightly narrower than the slot width W87 of the receiving slot 87. The third displacement restriction portion 93 is formed sufficiently low compared to the first leg portion 41 and the second leg portion 42, and can ensure or promote non-abutment against the claw member 30 in the assembled state of the puller 1.

[0077] The operation method of the puller 1 is as shown in Figure 9 and Figure 10 When the pull tab 20 is rotated from the recumbent state to the inverted state, the cam receiver 32 is pushed upward by the cam 24, and the claw end 31 also displaces upward. In either state of the recumbent and the inverted state of the pull tab 20, the abutment protrusion 60 abuts against the claw member 30, and the claw member 30 can be smoothly pivoted (or flexibly deformed) at a position further rearward than the upper side fulcrum PI.

[0078] The assembly method of the puller 1 is as shown in Figures 11 to 13 . First, as shown in Figure 11 , the shaft portion 23 of the base end portion 22 of the pull tab 20 is inserted into the receiving slots 81, 81' of the mounted portion 5, and the pull tab 20 is shaft-supported by the mounted portion 5. Next, the claw member 30 is introduced onto the puller main body 10 with the cam 24 interposed therebetween, and is received in the receiving slot 87 of the puller main body 10. As a result, the cam 24 is sandwiched between the cam receiver 32 and the bottom surface 88 in the vertical direction D3. Next, the mounting cover 40 is fixed to the mounted portion 5 by snap fitting. The protrusion of the first engaging portion 71 is engaged with the front side recess 61 (first engaged portion), and the protrusion of the second engaging portion 72 is engaged with the rear side recess 62 (second engaged portion). In addition, during the snap fitting, the mounting cover 40 is elastically deformed (in other words, flexibly deformed) with an increase or decrease in the interval between the first leg portion 41 and the second leg portion 42. Thus, it is not necessarily required to use a special jig, a machine, or the like for mounting the mounting cover 40 to the mounted portion 5, and the mounting can be performed by handwork, for example.

[0079] In the alternative embodiment shown in Figures 14 to 16 , the mounting cover 40 covers the entire or substantially the entire claw member 30, and the claw member 30 does not appear on the appearance of the puller 1. Thereby, the appearance of the puller 1 can be improved, and / or the flexibility of the claw member 30 can be further promoted. The same effects can be obtained within a range not conflicting with the above-described embodiment.

[0080] As shown in Figure 17 , the second cam protrusion 24c of the cam 24 can be omitted. As shown inFigure 18 As shown, the abutment protrusion 60 can also not be formed integrally with the first engagement portion 71. However, the abutment protrusion 60 and the first engagement portion 71 become separate portions in the mounting cover 40, and there is a risk that the respective strengths will be reduced. As shown, a spring 95 can be employed for the lower side pivot point P2 of the pawl member 30. After the spring 95 is introduced into the slot 16 formed in the link post 13 of the puller body 10, the pawl member 30 is mounted on the puller body 10. As shown, the intermediate portion 34 of the pawl member 30 can also have a shape that is curved into a U shape. Figure 19 As shown, the abutment protrusion 60 can also not be formed integrally with the first engagement portion 71. However, the abutment protrusion 60 and the first engagement portion 71 become separate portions in the mounting cover 40, and there is a risk that the respective strengths will be reduced. As shown, a spring 95 can be employed for the lower side pivot point P2 of the pawl member 30. After the spring 95 is introduced into the slot 16 formed in the link post 13 of the puller body 10, the pawl member 30 is mounted on the puller body 10. As shown, the intermediate portion 34 of the pawl member 30 can also have a shape that is curved into a U shape. Figure 20 As shown, the abutment protrusion 60 can also not be formed integrally with the first engagement portion 71. However, the abutment protrusion 60 and the first engagement portion 71 become separate portions in the mounting cover 40, and there is a risk that the respective strengths will be reduced. As shown, a spring 95 can be employed for the lower side pivot point P2 of the pawl member 30. After the spring 95 is introduced into the slot 16 formed in the link post 13 of the puller body 10, the pawl member 30 is mounted on the puller body 10. As shown, the intermediate portion 34 of the pawl member 30 can also have a shape that is curved into a U shape.

[0081] According to the above-described disclosure, those skilled in the art

Claims

1. A puller (1) for a slide fastener, the puller (1) for a slide fastener comprising: a puller body (10) including an upper wing plate (11), a lower wing plate (12), and a connecting column (13) connecting the upper wing plate (11) and the lower wing plate (12); a pull tab (20) rotatably mounted on the puller body (10) and including a free end (21) and a base end portion (22) including a cam (24); a pawl member (30) mounted on the puller body (10) with the cam (24) of the pull tab (20) interposed therebetween, the pawl member (30) being capable of changing a posture between a locked posture and a locked release posture in accordance with a rotation of the cam (24) accompanying a rotation of the pull tab (20); and a mounting cover (40) mounted to a mounting portion (5) of the puller body (10) to prevent the pull tab (20) and the pawl member (30) from falling off the puller body (10), the mounting cover (40) including a main plate (45) and first and second leg portions (41, 42) opposite to each other, the first and second leg portions (41, 42) respectively extending downward from the main plate (45), characterized in that the mounting cover (40) has flexibility allowing elastic deformation of the mounting cover (40) accompanying an increase or decrease in a gap between the first and second leg portions (41, 42) so as to be capable of being snap-fitted to the mounting portion (5), and the mounting cover (40) has at least one abutting protrusion (60) abutting against the pawl member (30) to form a fulcrum for elastic deformation of the pawl member (30) in a state where the mounting cover (40) is mounted to the mounting portion (5).

2. The puller for a slide fastener according to claim 1, characterized in that the mounting portion (5) has a plurality of engaged portions (6), the mounting cover (40) has a plurality of engaging portions (7) individually engaging with the plurality of engaged portions (6), the first leg portion (41) includes one or more first engaging portions (71) included in the plurality of engaging portions (7), and the second leg portion (42) includes one or more second engaging portions (72) included in the plurality of engaging portions (7).

3. The puller for a slide fastener according to claim 2, characterized in that the first leg portion (41) has the at least one abutting protrusion (60), and the at least one abutting protrusion (60) protrudes downward or protrudes downward from the one or more first engaging portions (71).

4. The puller for a slide fastener according to claim 2 or 3, characterized in that the at least one abutting protrusion (60) is located at a different height from all of the plurality of engaging portions (7) or at least one of the plurality of engaging portions (7) in the mounting cover (40). ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. The puller for a slide fastener according to any one of claims 1 to 3, wherein the at least one abutting protrusion (60) has a wedge shape tapered toward the bottom in a side view.

6. The puller for a slide fastener according to any one of claims 1 to 3, wherein the mounting portion (5) includes left and right walls disposed adjacent to each other with a space in a width direction of the puller body (10), the mounting cover (40) includes one or more displacement restricting portions (9) inserted between the left and right walls to restrict displacement of the mounting cover (40) in the width direction of the puller body (10).

7. The puller for a slide fastener according to claim 6, wherein the first leg portion (41) has a first displacement restricting portion (91) included in the one or more displacement restricting portions (9), and / or the second leg portion (42) has a second displacement restricting portion (92) included in the one or more displacement restricting portions (9).

8. The puller for a slide fastener according to claim 7, wherein the first displacement restricting portion (91) is directly connected to the at least one abutting protrusion (60) or forms the same protrusion as the at least one abutting protrusion (60).

9. The puller for a slide fastener according to claim 6, wherein the one or more displacement restricting portions (9) include one or more third displacement restricting portions (93) protruding downward from the main plate (45) and inserted between the left and right walls at a position between the first leg portion (41) and the second leg portion (42).

10. The puller for a slide fastener according to any one of claims 1 to 3, wherein the mounting cover (40) is a frame having a three-sided shape of the main plate (45), the first leg portion (41), and the second leg portion (42) and opening to the side downward, a first curved portion (46) is formed between the main plate (45) and the first leg portion (41), and a second curved portion (47) is formed between the main plate (45) and the second leg portion (42).

11. The puller for a slide fastener according to any one of claims 1 to 3, wherein the claw member (30) has a claw end (31), a cam receiving portion (32) receiving the cam (24), an opposite end (33) on an opposite side of the claw end (31), and an intermediate portion (34) extending between the cam receiving portion (32) and the opposite end (33), and the at least one abutting protrusion (60) abuts the intermediate portion (34) of the claw member (30).

12. The puller for a slide fastener according to any one of claims 1 to 3, wherein the at least one abutting protrusion (60) is located at a lowest point in the mounting cover (40).

13. The puller for a slide fastener according to any one of claims 1 to 3, wherein the first leg portion (41) and the second leg portion (42) are opposite to each other in a moving direction of the puller (1) for opening and closing the slide fastener. ​ ​ ​ ​ ​ ​ ​ ​ ​ 14. The puller for a slide fastener according to any one of claims 1 to 3, characterized in that the mounted portion (5) includes left and right walls that are arranged adjacent to each other at intervals in the width direction of the puller body (10), the side surfaces of the left and right walls that face in opposite directions in the width direction of the puller body (10) are not covered by the mounting cover (40).

15. The puller for a slide fastener according to claim 4, characterized in that the at least one abutting protrusion (60) is located at a lower height than all of the plurality of engaging portions (7) or at least one of the plurality of engaging portions (7) in the mounting cover (40).

Images