Slider for slide fastener

Abstract

The utility model relates to a puller for a zipper. In order to reduce the space (50) between the slider body (10) and the attachment cover (40) in stages in the vertical direction, the attachment cover (40) is attached to the portion to be attached (5) in the order of at least a first attachment state in which the attachment cover (40) is attached to the portion to be attached (5), and a second attachment state in which the attachment cover (40) is attached to the portion to be attached (5), in which the attachment cover (40) is attached to the portion to be attached (5), in which the attachment cover (40) is attached to the portion to be attached (5), in order to reduce the space (50) between the slider body (10) and the attachment cover (40). The entire claw member (30) is displaceable in the vertical direction in a space (50) between the slider body (10) and the attachment cover (40).

Description

TECHNICAL FIELD

[0001] The utility model relates to the puller for zip fastener. 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 referred to as 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 this document Figure 7 Fig. 1 illustrates that a claw-use protruding portion 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] Even if the constituent parts of the puller are colored in the same color by part category before assembly, the puller in the assembled state will exhibit different colors depending on the constituent parts, which leads to deterioration of the appearance of the puller (in short, it is difficult to make the constituent parts the same color). In addition, there is a case where the manufacturing cost is increased because it is necessary to manage the inventory according to the color of the constituent parts. On the other hand, even if coloring is performed all at once after assembly of the puller, it is not possible to avoid uneven coloring in the puller having a pull tab held in a lying posture by the claw member. For example, it is possible that coloring is not performed well in the contact range of the pull tab and the puller body.

[0012] From the above non-limiting example description, the present inventors have found the following new problem: to avoid or suppress uneven coloring of the constituent fittings of the puller with respect to each other and / or uneven coloring in the individual puller without significantly sacrificing the manufacturing efficiency of the puller.

[0013] Solution for solving the problem

[0014] The technical solution of the utility model provides a puller for zipper, the puller for zipper has: puller main part, it contains upper wing plate, lower wing plate and the link column that links up upper wing plate and lower wing plate, puller blade, it rotatably installs on puller main part, contains free end and base end part, base end part contains cam, claw member, it installs on puller main part with the cam of puller blade is inserted between it and puller main part, the claw member can change posture between locking posture and locking release posture according to the rotation of cam accompanying the rotation of puller blade, and installation cover, it is installed on the installed portion of puller main part to prevent puller blade and claw member from falling off from puller main part, installed portion and installation cover can be mutually engaged in the following way: in order to make the space between puller main part and installation cover gradually reduce in up-down direction, installation cover is installed on installed portion in the order of at least first installation state and second installation state, when first installation state, claw member as a whole can displace in space along up-down direction.

[0015] The manufacturing method of the puller for zipper of the technical solution of the utility model contains: the process of assembling the semi-finished product of puller by puller main part, puller blade, claw member and installation cover, in the semi-finished product, installation cover is installed on installed portion in first installation state, claw member as a whole can displace in the space between puller main part and installation cover, the process of coloring semi-finished product, and the process of changing the installation state of installation cover from first installation state to second installation state in the way that the space is reduced in up-down direction compared with the space when first installation state.

[0016] In several embodiments, in second installation state, claw member is supported to be able to pivot between puller main part and installation cover.

[0017] In several embodiments, installation cover is obliquely installed on puller main part in first installation state, and is installed on puller main part with smaller inclination or no inclination than first installation state in second installation state.

[0018] In several embodiments, one of installed portion and installation cover has at least two recesses, and the other of installed portion and installation cover has at least one protrusion, which can be engaged in at least two recesses at different times to generate first installation state and second installation state.

[0019] In several embodiments, at least two recesses are formed adjacent in up-down direction.

[0020] In several embodiments, the at least two recesses include an upper recess and a lower recess, the depth of the lower recess being different from the depth of the upper recess.

[0021] In several embodiments, the mounted portion includes left and right walls adjacently arranged at intervals in the width direction of the slider main body, and at least two recesses are recessed in the front end surface or the rear end surface of each of the left and right walls.

[0022] In several embodiments, the mounted cover includes 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 respectively extending downward from the main plate, and the first leg portion has at least one protrusion.

[0023] In several embodiments, the mounted portion includes left and right walls adjacently arranged at intervals in the width direction of the slider main body, and the first leg portion has one or more first displacement restriction portions inserted between the left and right walls to restrict displacement of the mounted cover in the width direction of the slider main body, and the first displacement restriction portion is directly connected to the at least one protrusion.

[0024] In several embodiments, the mounted portion supports the pivoting of the mounted cover during the change from the first mounted state to the second mounted state.

[0025] In several embodiments, the mounted cover has flexibility that allows elastic deformation of the mounted cover accompanying an increase or decrease in the interval between the first leg portion and the second leg portion, so that the mounted cover can be snap-fitted to the mounted portion, and the mounted cover has at least one abutting protrusion that abuts against the claw member in the second mounted state to form a fulcrum for elastic deformation of the claw member.

[0026] In several embodiments, the claw member has a claw end, a cam receiving portion that receives the cam, an opposite end located on the opposite side of the claw end, and an intermediate portion that extends between the cam receiving portion and the opposite end.

[0027] In several embodiments, the cam includes a first cam protrusion that protrudes toward the free end of the pull tab, and a second cam protrusion that protrudes toward the opposite side of the first cam protrusion.

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

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

[0030] Effects of the Invention

[0031] According to the technical scheme of the present application, the uneven coloring of the constituent parts of the puller and / or the uneven coloring in the individual puller can be avoided or inhibited without significantly sacrificing the manufacturing efficiency of the puller. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is an exploded perspective view of the puller of one aspect of the present application.

[0033] Figure 2 is a perspective view of the puller in an assembled state.

[0034] Figure 3 is an exploded side view of the puller.

[0035] Figure 4 is a side view of the puller in an assembled state.

[0036] Figure 5 is a top view of the puller.

[0037] Figure 6 is a front view of the puller.

[0038] Figure 7 is a perspective view of the cover.

[0039] Figure 8 is a top view of the puller body.

[0040] Figure 9 is a central sectional view of the puller in a state where the tab is inverted.

[0041] Figure 10 is a central sectional view of the puller in a state where the tab is inverted.

[0042] Figure 11 is an assembly process diagram of the puller.

[0043] Figure 12 is an assembly process diagram of the puller.

[0044] Figure 13 is an assembly process diagram of the puller.

[0045] Figure 14 is an assembly process diagram of the puller.

[0046] Figure 15 is a central sectional view of a semi-finished product of the puller, the claw member as a whole and the base end portion of the tab being capable of displacement in the up-down direction.

[0047] Figure 16is a plan view of another form of the pull tab.

[0048] Figure 17 is a side view of another form of the pull tab.

[0049] Figure 18 is a central sectional view of another form of the pull tab.

[0050] Figure 19 is an elevation view of a modification of the pull tab.

[0051] Figure 20 is a central sectional view of a modification of the pull tab.

[0052] Figure 21 is a central sectional view of a modification of the pull tab.

[0053] Figure 22 is a central sectional view of a modification of the pull tab.

[0054] Explanation of Reference Numerals

[0055] 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, abutting protrusion; 8, right wall; 8', left wall. DETAILED DESCRIPTION

[0056] 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 excessive explanation, and can understand the complementary effects brought by the combination. Repetitive explanations among the embodiments are omitted in principle. The description of the utility model is mainly for the purpose of illustration with reference to 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 effective for various pull tabs and manufacturing methods thereof not disclosed in the present specification.

[0057] The structure of the pull tab 1 will be mainly described with reference to Figures 1 to 15 Figure 1 ​As shown, with respect to the slider 1, the front-rear direction Dl, the left-right direction D2, and the up-down direction D3 are defined. The front-rear direction Dl coincides with the moving direction of the slider 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 tape 11 and / or the lower tape 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, the advancing of the slider 1 causes the left and right slide fastener elements (not shown) to engage with each other, and the retreating of the slider 1 causes the left and right slide fastener elements (not shown) to disengage with each other. In addition, the width direction of the slider 1 or the constituent members of the slider 1 such as the slider main body 10 coincides with the left-right direction D2. The slider 1 is an assembly of four members, including the slider main body 10, the pull tab 20, the claw member 30, and the mounting cover 40. The slider main body 10 is a metal member formed by die casting or a resin member formed by injection molding. 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 metal plate that is bent at multiple locations. The claw member 30 is manufactured, for example, by punching a metal plate and performing bending processing. The mounting cover 40 is typically a resin member formed by injection molding, but can also be a metal member or a composite member of metal and resin.

[0058] As will be clear from the description below, the constituent members of the slider 1 are colored in association with the assembly of the slider 1. In the slider 1, the claw member 30 as a whole is displaceable in the space 50 between the slider main body 10 and the mounting cover 40, and the pull tab 20 is not held in a depressed posture by the claw member 30 (see FIG. 2). Figure 15 In this way, uneven coloring of the constituent members of the slider 1 with respect to each other and / or uneven coloring in the individual slider 1 can be avoided or suppressed without significantly sacrificing the manufacturing efficiency of the slider 1. Preferably, the mounting cover 40 is not fastened to the slider main body 10 (the mounting portion 5 described below). In this case, the process restriction that the coloring process is performed after the plastic deformation caused by the fastening process (otherwise, the coloring layer would be peeled off or the color tone would change at the plastic deformation site) can be relaxed. In addition, with respect to the coloring, painting, plating, and / or any kind of chemical conversion treatment can be employed.

[0059] The puller main body 10 includes an upper wing plate 11, a lower wing plate 12, and a link column 13 that links the upper wing plate 11 and the lower wing plate 12. The front end portion of the upper wing plate 11 and the front end portion of the lower wing plate 12 are linked by the link column 13. The upper wing plate 11 and the lower wing plate 12 are flat plates that are oriented parallel to each other and have the same profile (plan view or bottom view) shape. The upper wing plate 11 has a claw hole 11j for a claw end 31 of a claw member 30, which is simply a hole that penetrates the upper wing plate 11. The link column 13 is located in the left and right center of the puller main body 10 and has a rear end portion that narrows in a wedge shape toward the rear. From the viewpoint of preventing the biting of cloth, and the like, other shapes of the upper wing plate 11 and the lower wing plate 12 other than those shown in the drawing can also be adopted.

[0060] The upper wing plate 11 and the lower wing plate 12 have left and right front edges 11a, 11b, 12a, 12b that are farther apart from the center line CL of the puller 1 as they extend farther rearward along the center line CL, and left and right side edges 11c, 11d, 12c, 12d that are closer to the center line CL as they extend farther rearward along the center line CL from the rear end of the front edges 11a, 11b, 12a, 12b. A rail 14 that projects toward the lower wing plate 12 is linked to the side edges 11c, 11d of the upper wing plate 11, and the chain passage in the puller main body 10 is restricted in the width direction thereof. As an addition or an alternative, a rail 15 that projects toward the upper wing plate 11 is linked to the side edges 12c, 12d of the lower wing plate 12, thereby promoting the same effect.

[0061] Front mouths M1, M2 (see Figure 6 ) are formed on the left and right sides of the link column 13, and a rear mouth M3 (see Figure 1)。The puller main body 10 has a Y-shaped chain passage branching in correspondence with the connecting column 13, and the non-engaged left and right zipper chains enter the puller main body 10 via the aforementioned front mouths M1, M2, and the engaged left and right zipper chains exit from the puller main body 10 via the aforementioned rear mouth M3. The puller main body 10 (in the illustrated case, the upper flap 11) has a mounted portion 5 for mounting the cover 40. The mounted portion 5 axially 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 in a manner that accommodates 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 arranged at intervals in the width direction of the puller main 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 to further extend forward than the right wall 8 and the left wall 8', but is not limited to such a size and shape. The right wall 8 and the left wall 8' each have a receiving groove 81, 81' that receives the shaft portion 23 of the pull tab 20 and opens upward, and the receiving grooves 81, 81' each pass through the right wall 8 and the left wall 8' in the left-right direction D2. The receiving grooves 81, 81' can extend downward to the vicinity of the upper surface of the upper flap 11 to divide the right wall 8 and the left wall 8' into front and rear portions, respectively, but can also be formed more shallowly. The receiving groove 87 has a groove width W87 (refer to FIG. 6) that coincides with the interval between the opposing wall surfaces of the right wall 8 and the left wall 8'. Figure 8 )According to the circumstances, the right wall 8 and the left wall 8' can sometimes include a front flange 82, 82' that protrudes in a mutually close manner at the front end portion thereof and / or a rear flange 83, 83' that protrudes in a mutually close manner at the rear end portion thereof. In this case, the receiving groove 87 has a groove width W82 that coincides with the interval between the opposing wall surfaces of the front flange 82, 82' and / or a groove width W83 that coincides with the interval between the opposing wall surfaces of the rear flange 83, 83'. By imparting a shape symmetrically to the right wall 8 and the left wall 8' (for example, as described above), the symmetric shape of the 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.

[0062] The claw member 30 (whether in contact or not) 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 flap 11, whereby the puller 1 can be made low (in the up-down direction).

[0063] A front-side recessed portion 61 is formed in 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 in 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 described later, the front-side recessed portion 61 and the rear-side recessed portion 62 function as the engaged portions 6 of the installed portion 5 and are used for snap-fitting the installation cover 40 to the right wall 8 and the left wall 8'. The installation cover 40 is provided with a plurality of engaged portions 7 (e.g., protrusions) that individually engage the plurality of engaged portions 6. In the front end surface of the right wall 8 and the left wall 8', a front-side recessed portion 6' (upper recessed portion) is formed in the upper layer so as to be adjacent to the front-side recessed portion 61 directly above the front-side recessed portion 61, whereby the installation cover 40 can be temporarily fixed as will be described later.

[0064] The pull tab 20 is a fitting that is operated by a person in order to advance or retract the puller 1. The pull tab 20 is rotatably mounted to the puller main body 10, and specifically, the pull tab 20 is shaft-supported by the puller main body 10 (e.g., the installed portion 5) so as to be rotatable about a rotation axis RL that is parallel to the left-right direction D2. The pull tab 20 typically includes a free end 21 that is located at a position separate from the rotation axis RL, a base end portion 22 that is located on the opposite side of the free end 21 and extends along the rotation axis RL, a held portion 25 that is held by a person's hand (e.g., the thumb and the index finger), a right connecting rod 26 that extends between the right end of the base end portion 22 and the held portion 25, and a left connecting rod 27 that extends between the left end of the base end portion 22 and the held portion 25. An opening is defined by the base end portion 22, the held portion 25, and the right and left connecting rods 26, 27.

[0065] The base end portion 22 of the pull tab 20 includes a shaft portion 23 and a cam 24, and in typical cases, the cam 24 is located at the center in the left-right direction D2 of the shaft portion 23. The cam 24 is turned about 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 upward (as a result, the claw end 31 described later is also lifted upward). Alternatively, the cam 24 includes a cam shaft 24a that is coaxial with the shaft portion 23 of the pull tab 20, a first cam protrusion 24b that protrudes toward the free end 21 of the pull tab 20, and a second cam protrusion 24c that protrudes toward the opposite side of 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 the assembly accuracy of the puller 1 can be improved. This is particularly effective for the first installed state described later.

[0066] The claw member 30 is supported so as to be (slightly) pivotable between the puller main body 10 and the installation cover 40 and functions as a leaf spring (see FIG. 2). Figure 9 and Figure 10The claw member 30 is mounted on the slider body 10 such that a cam 24, through which a pull tab 20 is inserted, is inserted between the claw member 30 and the slider body 10. The claw member 30 can flexibly change its position between a locked position and a locked-out position according to the rotation of the cam 24 accompanying the rotation of the pull tab 20. Specifically, 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 (see reference). Figure 3 The cam receiving portion 32 has a cup shape, which is three-sided when viewed from the side and is open at the bottom, and is formed by connecting the rear plate 32a, the upper plate 32b, and the front plate 32c. The width of the cam receiving portion 32 is wider than the width of the opposite end 33 and the middle portion 34, so that it can reliably and stably bear the force from the cam 24 of the pull tab 20. The claw end 31 extends downward from the rear plate 32a of the cam receiving portion 32 and has a pointed shape that can engage with the zipper teeth. When the pull tab 20 is tilted down ( Figure 9 The claw tip 31 protrudes into the zipper tooth passage inside the zipper head body 10 to lock the zipper teeth in place. When the pull tab 20 is inverted ( Figure 10 The claw tip 31 retracts upward to release the locking of the zipper teeth. A mounting cover 40 is installed on the mounting portion 5 of the zipper head body 10 to prevent the pull tab 20 and claw member 30 from detaching from the zipper head body 10. The mounting cover 40 includes a main plate 45 and opposing first legs 41 and second legs 42. The first legs 41 and second legs 42 extend downward from the main plate 45. Typically, the mounting cover 40 has a triangular shape with the main plate 45, first legs 41, and second legs 42 and opens downward. The main plate 45 has downwardly projecting left and right protrusions 45p and 45q that close the receiving slots 81 and 81' of the right wall 8 and left wall 8' from above, but these can be omitted.

[0067] A first bend 46 is formed between the main board 45 and the first leg 41, and a second bend 47 is formed between the main board 45 and the second leg 42. The degree of bending of the first bend 46 is variable, which allows the first leg 41 to bend away from the main board 45. The degree of bending of the second bend 47 is also variable, which allows the second leg 42 to bend away from the main board 45. Preferably, the mounting cover 40 does not have a left or right wall connecting the main board 45 and the first leg 41, and the main board 45 and the first leg 41 are connected only via the first bend 46, thereby ensuring sufficient flexibility for snap-fit ​​installation. The same description applies to the relationship between the main board 45 and the second leg 42. Preferably, the sides of the right wall 8 and the left wall 8' facing opposite sides in the width direction of the pull head body 10 are not covered by the mounting cover 40.

[0068] The aforementioned mounting portion 5 is sandwiched between the first leg 41 and the second leg 42. In particular, the first engaging portion 71 of the first leg 41 engages with the engaging portion 6 of the mounting portion 5 (e.g., the aforementioned front recess 61), and the second engaging portion 72 of the second leg 42 engages with another engaging portion 6 of the mounting portion 5 (e.g., the aforementioned rear recess 62). Thus, the mounting cover 40 can be installed and secured to the zipper head body 10 with sufficient strength without the need for fastening, and the mounting cover 40 can be effectively prevented from detaching from the mounting portion 5.

[0069] The first engaging portion 71 is a rearward protrusion that can include the left and right front engaging portions 71a and 71b. Similarly, the second engaging portion 72 is a forward protrusion that can include the left and right rear engaging portions 72a and 72b. The left and right front engaging portions 71a and 71b are located at the lower end of the first leg 41 and protrude rearward, and can engage with the front recesses 61 of the right wall 8 and the left wall 8'. The rear engaging portions 72a and 72b of the second leg 42 are located at the lower end of the second leg 42 and protrude forward, and can engage with the rear recesses 62 of the right wall 8 and the left wall 8'.

[0070] In this embodiment, the mounted part 5 and the mounting cover 40 can engage with each other in the following manner: In order to reduce the space 50 between the slider body 10 and the mounting cover 40 in stages in the vertical direction, the mounting cover 40 is installed on the mounted part 5 in at least a first mounting state and a second mounting state. In the first mounting state (refer to...), Figure 15 The claw member 30 as a whole can be displaced vertically within the space 50. This allows for the avoidance or suppression of uneven coloring between the constituent parts of the zipper pull 1 and / or uneven coloring within individual zipper pulls without significantly sacrificing manufacturing efficiency. In the second mounting state, the claw member 30 can be supported to pivot between the zipper pull body 10 and the mounting cover 40 (see reference). Figure 9 , 10 In the second installation state, the movement of the pull tab 20 in the vertical direction D3 is restricted by the claw member 30, and the pull tab 20 remains in a more stable collapsed state (see reference). Figure 9 ).

[0071] The mounting cover 40 is installed at an angle on the slider body 10 in the first installation state, and is installed on the slider body 10 at a smaller angle than in the first installation state or without any angle in the second installation state (see reference). Figure 13 and Figure 14 By engaging the protrusion of the second engaging portion 72 with the rear recess 62, the mounting cover 40 can be temporarily fixed to the mounted portion 5 with sufficient mounting strength, effectively preventing the mounting cover 40 from falling off during the coloring process.

[0072] The mounted portion 5 (for example, the front end face or the rear end face of the right wall 8 and the left wall 8') has at least two recesses (for example, the front-side recess 61 and the front-side recess 6' thereon), and the mounting cover 40 (for example, the first leg portion 41 thereof) has at least one protrusion (for example, the first engaging portion 71) capable of engaging with the two recesses at different times. In this case, there is an advantage that the protrusion of the first engaging portion 71 can also be used for temporary fixation of the mounting cover 40. It is also conceivable that the mounted portion 5 has at least two protrusions and the mounting cover 40 has at least one recess capable of engaging with the at least two protrusions at different times.

[0073] The front-side recess 61 and the front-side recess 6' thereon (for example, in the front-rear direction D1) can have different depths. In the case where the former is deeper than the latter (in other words, is formed deeper in the front-rear direction), the smooth transition of the mounting cover 40 from the first installed state to the second installed state is facilitated.

[0074] In some cases, the mounting cover 40 has flexibility that allows elastic deformation of the mounting cover 40 accompanying an increase or decrease in the interval between the first leg portion 41 and the second leg portion 42, so that the mounting cover 40 can be snap-fitted to the mounted 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 where the mounting cover 40 is installed to the mounted portion 5 to form a fulcrum for elastic deformation of the claw member 30. For the puller 1 in which the mounting cover 40 is installed by elastic deformation, it is possible to facilitate the 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 mounted 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.

[0075] The abutting protrusion 60 is located at a height different from or lower than all of the first engaging portions 71 or at least one of the first engaging portions 71, and 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 (in the left-right direction D2) that tapers toward the lower side in a side view, and in the illustrated example, has a front-side inclined surface 60a and a rear-side inclined surface 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 claw member 30 can be smoothly flexed with a lighter force to rotate the pull tab 20. The abutting protrusion 60 can also have a wedge shape that tapers toward the lower side in a side view in another direction (for example, in the front-rear direction D1).

[0076] In the illustrated example, the mounting cover 40 is imparted with a symmetrical 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 symmetrical shape, has a protrusion 60' of the same shape as the abutment protrusion 60 protruding 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 body 10, whereby it is possible to promote more stable installation of the mounting cover 40.

[0077] The abutment protrusion 60 abuts against the intermediate portion 34 of the claw member 30, and more preferably abuts against the intermediate portion 34 at a position closer to the opposite end 33 than the cam receiving portion 32, whereby it is possible to make the claw member 30 more easily flexible. In addition, as a result, the mounting cover 40 is lengthened in the front-rear direction, and it is possible to more fully cover (conceal) the claw member 30. The lowest point of the abutment protrusion 60 is located at a position lower than the upper surface of the upper wing plate 11, and of course is located at a position higher than the bottom surface 88 of the housing groove 87.

[0078] In the assembled state of the puller 1, the intermediate portion 34 of the claw member 30 does not abut against the bottom surface 88 of the housing groove 87 directly below the contact point between the abutment protrusion 60 and the claw member 30, and in short, as shown in Figure 9 and Figure 10 there is a gap. With this structure, the claw member 30 is supported in a state more easily flexible. In addition, the upper side fulcrum P1 (contact point between the abutment protrusion 60 and the claw member 30) and the lower side fulcrum P2 (contact point between the claw member 30 and 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 P1 is located at a position further rearward in the front-rear direction D1 than the lower side fulcrum P2.

[0079] 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 body 10 (refer to Figure 3), whereby displacement of the mounting cover 40 in the left-right direction D2 relative to the mounting portion 5 can be suppressed. The first leg portion 41 has a first displacement restriction portion 91 (included in one or more displacement restriction portions 9), and / or the second leg portion 42 has a second displacement restriction portion 92 (included in one or more displacement restriction portions 9). The first displacement restriction portion 91 protrudes rearward from the first engagement 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 restriction portion 91 has a lower 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 restriction portion 92 protrudes forward from the second engagement portion 72 and is inserted between the right wall 8 and the left wall 8' (e.g., the rear flange 83, 83').

[0080] The first displacement restriction portion 91 is directly linked to the first engagement portion 71. Thereby, in addition to the effect of displacement restriction of the mounting cover 40 by the first displacement restriction portion 91, the mechanical strength of the first engagement portion 71 can be improved. The second displacement restriction portion 92 is directly linked to the second engagement portion 72, and the same effect is obtained.

[0081] As an addition or alternative to the above-described first displacement restriction portion 91 and second displacement restriction portion 92, 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 is inserted between the right wall 8 and the left wall 8'. The third displacement restriction portion 93 can have a width that is substantially the same as or slightly narrower than the groove width W87 of the receiving groove 87. Compared to the first leg portion 41 and the second leg portion 42, the third displacement restriction portion 93 is formed sufficiently low, and it is possible to ensure or promote non-abutment with the claw member 30 in the assembled state of the puller 1.

[0082] 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 receiving member 32 is pushed upward by the cam 24, and the claw end 31 is also displaced upward. In either state of the recumbent and inverted states of the pull tab 20, the abutment protrusion 60 abuts against the claw member 30, and it is possible to smoothly pivot (or flexibly deform) the claw member 30 at a position that is rearward of the upper side pivot point P1.

[0083] The assembly method of the puller 1 is as shown in Figures 11 to 14 First, as shown in Figure 11As shown, the shaft portion 23 of the base end portion 22 of the pull tab 20 is inserted into the receiving grooves 81, 81' of the mounting portion 5, and the pull tab 20 is supported by the mounting portion 5 in a shaft manner. The pull tab 20 can also be inclined to either of the front side and the rear side in the front-rear direction Dl. Next, the claw member 30 is introduced into the puller body 10 with the cam 24 interposed therebetween and is housed in the housing groove 87 of the puller body 10. As a result, the cam 24 is sandwiched between the cam receiving portion 32 and the bottom surface 88 in the up-down direction D3. Next, the mounting cover 40 is temporarily fixed to the mounting portion 5 by snap fitting (first mounting state). In detail, the protrusions of the first engaging portion 71 are engaged with the front-side recessed portion 6' of the upper layer of the mounting portion 5. The front-side recessed portion 6' of the upper layer is formed shallower than the front-side recessed portion 61 (lower recessed portion) of the lower layer, but can sufficiently suppress the mounting cover 40 from falling off. Next, the mounting cover 40 is fixed to the mounting portion 5 by snap fitting (second mounting state). The protrusions of the first engaging portion 71 are engaged with the front-side recessed portion 61 (first engaged portion), and the protrusions of the second engaging portion 72 are engaged with the rear-side recessed portion 62 (second engaged portion). In addition, during the snap fitting, the mounting cover 40 is elastically deformed (in other words, flexes) 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 or machine for mounting the mounting cover 40 to the mounting portion 5, and for example, the mounting can be performed by hand work.

[0084] In Figure 13 the puller 1 shown in the middle of assembly as a semi-finished product, as Figure 15 shown, the claw member 30 as a whole is displaceable in the space 50 between the puller body 10 and the mounting cover 40, and the pull tab 20 is more freely displaceable in the up-down direction. By coloring the semi-finished product, the constituent fittings can be colored in the same color in a manner that coloring unevenness is less likely to occur in a portion of the puller 1. By snap fitting the mounting cover 40 to the mounting portion 5 in multiple stages, the puller 1 can be easily changed from the first mounting state to the second mounting state, and thus the additional burden related to the manufacturing is also small. In addition, by changing the mounting state of the mounting cover 40 from the first mounting state to the second mounting state, the space 50 is reduced in the up-down direction compared to the space 50 at the time of the first mounting state.

[0085] In Figures 16 to 18 the alternative embodiment shown, the mounting cover 40 covers the claw member 30 as a whole or substantially as a whole, and the claw member 30 does not appear in 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 also be obtained within a range that does not contradict the above-described embodiment.

[0086] As Figure 19 shown, the second cam protrusion 24c of the cam 24 can be omitted. As shown in the alternative embodiment, the first cam protrusion 24b of the cam 24 can be omitted.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. Figure 21 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 22 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.

[0087] 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 rotation of the cam (24) accompanying rotation of the pull tab (20); and a mounting cover (40) mounted to a mounted 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), characterized in that: the mounted portion (5) and the mounting cover (40) are capable of being engaged with each other in such a manner that, in order to stage-wise reduce a space (50) between the puller body (10) and the mounting cover (40) in a vertical direction, the mounting cover (40) is mounted to the mounted portion (5) in the order of at least a first mounting state and a second mounting state, in the first mounting state, the pawl member (30) as a whole is capable of being displaced in the vertical direction in the space (50).

2. The puller for a slide fastener according to claim 1, characterized in that, in the second mounting state, the pawl member (30) is supported so as to be pivotable between the puller body (10) and the mounting cover (40).

3. The puller for a slide fastener according to claim 1 or 2, characterized in that: the mounting cover (40) is obliquely mounted to the puller body (10) in the first mounting state, and is mounted to the puller body (10) with less obliquity or without obliquity than in the first mounting state in the second mounting state.

4. The puller for a slide fastener according to claim 1 or 2, characterized in that: one of the mounted portion (5) and the mounting cover (40) has at least two recesses, and the other of the mounted portion (5) and the mounting cover (40) has at least one protrusion capable of being engaged in the at least two recesses at different times to produce the first mounting state and the second mounting state.

5. The puller for a slide fastener according to claim 4, characterized in that: the at least two recesses are formed adjacent to each other in the vertical direction.

6. The puller for a slide fastener according to claim 4, characterized in that: the at least two recesses include an upper recess and a lower recess, and a depth of the lower recess and a depth of the upper recess are different.

7. The puller for a slide fastener according to claim 4, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The mounted portion (5) includes left and right walls arranged adjacent to each other with a space in the width direction of the puller body (10), and the at least two recesses are recessed in the front end face or the rear end face of each of the left and right walls.

8. The puller for a slide fastener according to claim 4, wherein The mounting cover (40) includes a main plate (45) and a first leg portion (41) and a second leg portion (42) opposite to each other, the first leg portion (41) and the second leg portion (42) respectively extend downward from the main plate (45), and the first leg portion (41) has the at least one protrusion (71).

9. The puller for a slide fastener according to claim 8, wherein The mounted portion (5) includes left and right walls arranged adjacent to each other with a space in the width direction of the puller body (10), The first leg portion (41) has one or more first displacement restriction portions (91) inserted between the left and right walls to restrict displacement of the mounting cover (40) in the width direction of the puller body (10), The first displacement restriction portion (91) is directly connected to the at least one protrusion (71).

10. The puller for a slide fastener according to claim 1 or 2, wherein The mounted portion (5) supports pivoting of the mounting cover (40) during a change from the first mounted state to the second mounted state.

11. The puller for a slide fastener according to claim 8 or 9, wherein The mounting cover (40) has flexibility that allows elastic deformation of the mounting cover (40) accompanying an increase or decrease in the space between the first leg portion (41) and the second leg portion (42) so as to be able to be snap-fitted to the mounted portion (5), and the mounting cover (40) has at least one abutting protrusion (60) that abuts against the claw member (30) in the second mounted state to form a fulcrum for elastic deformation of the claw member (30).

12. The puller for a slide fastener according to claim 1 or 2, wherein The claw member (30) has a claw end (31), a cam receiving portion (32) that receives the cam (24), an opposite end (33) on the opposite side of the claw end (31), and an intermediate portion (34) that extends between the cam receiving portion (32) and the opposite end (33).

13. The puller for a slide fastener according to claim 1 or 2, wherein The cam (24) includes a first cam protrusion (24b) that protrudes toward the free end (21) of the pull tab (20) and a second cam protrusion (24c) that protrudes toward the opposite side of the first cam protrusion (24b).

Images