Zipper slider

Abstract

The present invention provides a slider, in which a force-applying unit is provided in a cover groove of a pull-tab installation cover, and the force-applying unit applies force to the claw body in a manner that the claw end protrudes toward the chain tooth passage, and applies force to the closing component in a manner that the closing portion is placed on the upper wing plate. The force-applying unit includes a first elastic portion and a second elastic portion. The first elastic portion extends at least partially along the cover groove and can contact the claw body at least in one location. The second elastic portion extends at least partially along the cover groove and can contact the closing component at least in one location. The first elastic portion and the second elastic portion are adjacently arranged in a manner that forms a gap (e.g., a gap) therebetween. According to the slider of the present invention, the problem of a gap between the closing component and the leaf spring that may be caused by the selective displacement of the claw body can be solved.

Description

Technical Field

[0001] The invention relates to a slider for a zipper. Background Art

[0002] Patent Document 1 (International Publication No. 2018 / 100691) discloses a slider (one-time assembly product) that can realize the post-installation of the pull tab, and in particular discloses that the stop claw body and the opening and closing component are arranged on the upper wing plate in a swingable manner, and the pull tab insertion gap is opened and closed according to the posture of the opening and closing component. Figures 9 to 11 The installation process of the pull tab is shown in Figure 13 The locking state in which the claw portion of the stop claw body protrudes toward the guide path of the chain element is suggested. Figure 14 The unlocked state is shown in FIG.

[0003] Patent Document 2 (CN107183846B) discloses a leaf spring that is bifurcated into two parts in order to bias two claws. Summary of the Invention

[0004] When a common leaf spring is used to apply force to the closure member and the pawl, as disclosed in Patent Document 1, there is a possibility that a gap may form between the closure member and the leaf spring due to the selective displacement of the pawl. For example, if the claw tip of the pawl contacts the upper surface of the zipper element, causing the pawl to selectively displace upward, the entire leaf spring bends in response, creating a gap between the closure member and the leaf spring. This gap could lead to unintended displacement of the closure member (for example, creating a gap between the closure portion of the closure member and the upper wing plate).

[0005] The slider according to one embodiment of the present invention comprises: a slider body, which comprises an upper wing plate, a lower wing plate, and a connecting column connecting the upper wing plate and the lower wing plate; a pull-tab mounting cover, which comprises a base end fixed to the slider body and a free end positioned upward away from the upper wing plate, the pull-tab mounting cover being formed to define a cover groove extending between the base end and the free end; a claw body, which is arranged on the upper wing plate in a swingable manner and is at least partially housed in the pull-tab mounting cover, and has a claw end that can be displaced between a position at least retracted to a claw hole passing through the upper wing plate and a position protruding toward the chain tooth passage of the slider body; a closing component, which is at least partially housed A pull-tab mounting cover includes: a supported portion supported by a support protrusion provided on an upper wing plate; a closing portion configured to define a storage space for a portion of the pull-tab between the closing portion and the supported portion; when the closing member is in a first posture, the closing portion contacts the upper wing plate to close the pull-tab passage; and when the closing member is in a second posture, the closing portion is positioned upwardly away from the upper wing plate to release the seal on the pull-tab passage; and a force-applying unit provided within the cover groove, the force-applying unit applies force to the claw body so that the claw end protrudes toward the element passage and applies force to the closing member so that the closing portion rests on the upper wing plate. The force-applying unit includes: a first elastic portion extending at least partially along the cover groove and capable of contacting the claw body at at least one location; and a second elastic portion extending at least partially along the cover groove and capable of contacting the closing member at at least one location. The first elastic portion and the second elastic portion are adjacently arranged with a gap formed therebetween.

[0006] In certain embodiments, when the first elastic portion is pressed by the claw and bent into an arc shape while the claw tip of the claw contacts the fastener element in the slider, the second elastic portion maintains a flat posture or bends less than the first elastic portion.

[0007] In some embodiments, the force applying unit is a single leaf spring, in which a gap extending at least partially along the cover groove is formed as a gap between the first elastic portion and the second elastic portion. The leaf spring includes one or more connecting portions in addition to the first elastic portion and the second elastic portion, and the first elastic portion and the second elastic portion are connected to each other via the one or more connecting portions.

[0008] In certain embodiments, the leaf spring includes a first end having a first notch formed therein, and a second end having a second notch formed therein. The notch is a closed opening that is spatially disconnected from both the first and second notches. The leaf spring can be secured to the pull-tab mounting cover via the first and second ends. At least one of the first and second notches can be open on a side opposite to the notch.

[0009] In some embodiments, the claw body includes an upper arm and a lower arm defining an accommodation space, the upper arm is adapted to be pressed downward by the first elastic portion, the claw end is disposed on the lower arm, and the accommodation space accommodates a portion of the pull tab.

[0010] In certain embodiments, the closing member includes an intermediate portion between the closing portion and the supported portion, and the intermediate portion is adapted to be pressed downward by the second elastic portion.

[0011] In certain embodiments, the accommodation space of the pawl body and the accommodation space of the closing member are arranged adjacent to each other in the width direction of the slider.

[0012] In some embodiments, the force applying unit includes a pair of leaf springs, one of the leaf springs has a first elastic portion, and the other of the leaf springs has a second elastic portion, or the force applying unit includes a pair of wire springs, one of the wire springs has a first elastic portion, and the other of the wire springs has a second elastic portion.

[0013] Effects of the Invention

[0014] According to one aspect of the present disclosure, it is possible to facilitate independent control of the swing of the pawl and the swing of the closing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic perspective view of a slider for a slide fastener according to one embodiment of the present disclosure.

[0016] Figure 2 This is a schematic diagram showing the slider in a locked state.

[0017] Figure 3 This is a schematic diagram showing the slider in the unlocked state.

[0018] Figure 4 This is a schematic diagram showing a process of attaching a handle to a slider (primary assembly).

[0019] Figure 5 This is a schematic diagram showing a process of attaching a handle to a slider (primary assembly).

[0020] Figure 6 This is a schematic diagram showing a process of attaching a handle to a slider (primary assembly).

[0021] Figure 7 It is a schematic bottom view of the handle mounting cover, and the outline of the leaf spring is indicated by a two-dot chain line.

[0022] Figure 8 It is a schematic bottom view of the handle mounting cover, in which the schematic outline of the claw body is indicated by a two-dot chain line, and the schematic outline of the closing member is indicated by a dotted line.

[0023] Figure 9 It is a schematic cross-sectional perspective view of the left half of the pull-tab mounting cover.

[0024] Figure 10 It is a schematic perspective view of a closing member.

[0025] Figure 11 It is a schematic top view of the closing component.

[0026] Figure 12 It is a schematic right side view of the closing component, schematically showing the contact state between the supporting protrusion and the escape surface.

[0027] Figure 13 This is a schematic perspective view showing a state in which a leaf spring is arranged on the slider body so as to cover the pawl body and the closing member. The leaf spring includes a first elastic portion and a second elastic portion that are individually assigned to the pawl body and the closing member.

[0028] Figure 14 This is a schematic diagram showing a state in which the pawl body selectively displaces, and accordingly the first elastic portion of the floor spring bends into an arc shape, while the second elastic portion of the leaf spring maintains a flat posture.

[0029] Figure 15 This is a schematic plan view of a leaf spring according to another example, in which a gap formed between the first elastic portion and the second elastic portion is spatially connected to a notch at one end of the leaf spring.

[0030] Figure 16 This is a schematic perspective view of a leaf spring according to another example.

[0031] Figure 17 It is a schematic bottom view of the pull-tab mounting cover, and the schematic outline of the leaf spring according to another example is shown by two-dot chain lines.

[0032] Figure 18 It is a schematic bottom view of the pull-tab mounting cover, and the schematic outline of the leaf spring according to another example is shown by two-dot chain lines.

[0033] Figure 19 It is a schematic bottom view of the handle mounting cover, and the schematic outline of the wire spring according to another example is shown by a two-dot chain line. DETAILED DESCRIPTION

[0034] The following describes non-limiting embodiments and features of the present invention with reference to the accompanying drawings. Those skilled in the art will be able to combine the various embodiments and / or features without excessive explanation and appreciate the synergistic effects resulting from such combinations. In principle, redundant descriptions between embodiments will be omitted. The accompanying drawings are primarily intended to illustrate the invention and have been simplified for ease of illustration. Each feature is not specific to the slider disclosed in this specification but should be understood as universally applicable to various other sliders not disclosed in this specification.

[0035] Figure 1 The figure shows an exploded perspective view of the slider 1. The zipper with the slider 1 is omitted in the figure. The left and right zipper teeth are engaged by the forward movement of the slider 1, and the engagement of the left and right zipper teeth is released by the backward movement of the slider 1. In the following, the moving direction of the slider 1 for opening and closing the zipper is set as the front-to-back direction (refer to Figure 1 Double-headed arrow FB). This direction is also referred to as the length direction of the zipper (and the length direction of the slider). In addition, the front opening 24, 25 side of the slider (refer to Figure 1 Arrow F) is set to the front, the rear mouth 26 side of the slider described later (refer to Figure 1 The width direction of the zipper (and the width direction of the slider) perpendicular to the front-back direction is set as the left-right direction (refer to Figure 1 The double-headed arrow LR) is used to define the direction perpendicular to the front-back direction and the left-right direction as the up-down direction (refer to Figure 1 The vertical direction is not necessarily the vertical direction (the direction of gravity). For example, when the length direction of the zipper is arranged in the vertical direction, the vertical direction of the slider 1 is included in the horizontal direction (orthogonal to the vertical direction). The directions referenced in this specification are not related to the vertical direction.

[0036] The slider 1 includes a slider body 2; a tab mounting cover 3 having a base end 31 and a free end 32; a claw body 4 having a claw end 45; a closing member 5 having a closing portion 52; and a force-applying unit 6. The tab 7 can be subsequently attached to a primary assembly formed by assembling these components. In this specification, the slider 1 refers to this primary assembly, but this is not limited to this and may also refer to a secondary assembly resulting from the tab 7 being subsequently attached to the primary assembly (specifically, the tab mounting cover 3).

[0037] The pull tab 7 is a posture control member that changes its posture by contacting the claw body 4 and / or by contacting the closing member 5. The pull tab 7 can have various shapes or structures, but typically has a pull tab opening 7d at its mounting end 7a, and the pull tab rod 7j extends in a manner that at least partially demarcates the pull tab opening 7d. In the example shown in the figure, the pull tab rod 7j includes: a pair of straight rods 7e that extend along a predetermined direction D7 (for example, the longitudinal direction of the pull tab 7); and a curved rod 7f that connects these straight rods 7e. The pull tab 7 can also be a simple ring-shaped object, and additional components such as belts and metal wires can be attached to the ring to improve its operability.

[0038] By operating the pull tab 7, the state of the slider 1 can be changed between Figure 2 The locked state shown (the claw end 45 protrudes toward the element passage provided between the upper wing plate 21 and the lower wing plate 22 described later) and Figure 3The lock release state shown in FIG. 8 is switched between the state where the claw end 45 retreats from the element passage to the claw hole 89. Figure 3 In the process, the pull tab 7 is pulled obliquely upward and forward, and the pull tab rod 7j presses the claw body 4 obliquely upward and forward, causing the claw body 4 to pivot upward, and the claw end 45 retreats from the chain element passage to the claw hole 89 of the upper wing plate 21. The closing component 5 is also pressed obliquely upward and forward by the pull tab rod 7j and pivots upward, but collides with the protrusion of the pull tab mounting cover 3 (for example, the rivet protrusion 3b described later) and stops. When the pull tab 7 is released, the claw body 4 and the closing component 5 return to the initial position ( Figure 2 The claw body 4 and the closing member 5 also move in the same manner when the pull tab 7 is pulled obliquely upward and rearward. It is also conceivable that the closing member 5 is not pivoted when unlocking (for example, the accommodation space 53a of the closing member 5 described later is formed larger), but in this case, it is difficult to achieve a low height of the slider 1.

[0039] like Figures 4 to 6 As shown, the pull tab 7 can also be installed on the slider 1 at the back, thereby meeting the customer's needs for changing or replacing the pull tab. First, the pull tab rod 7j is placed on the loading surface 92 of the upper wing plate 21 at the pull tab entrance E1 between the free end 32 (for example, the rear wall 35b) of the pull tab mounting cover 3 and the upper wing plate 21, and then moved forward along the outer surface of the upper wing plate 21. The pull tab rod 7j rises along the guide inclined surface 93a of the guide protrusion 93 provided on the upper wing plate 21. The closing part 5 is pressed by the pull tab rod 7j and pivoted to the upper side, forming a pull tab passage E2 between the closing part 52 and the upper wing plate 21 (guide protrusion 93), and the upward protrusion 8 abuts against the recessed portion 9 and is accommodated. That is, the recessed portion 9 at least partially accommodates the upward protrusion 8. Furthermore, according to an embodiment, the closing component 5 is pressed forward by the pull-tab rod 7j and can be pivoted at the frontmost position (for example, pivoted in a state where the main protrusion 55 described later is in contact with the supporting protrusion 86). Since the upward protrusion 8 is accommodated in the recessed portion 9, a pull-tab passage E2 having a size that allows the pull-tab rod 7j to pass through is provided between the closing component 5 and the upper wing plate 21. The pull-tab rod 7j can advance through the pull-tab passage E2 and can enter the accommodating space 47 of the claw body 4 and the accommodating space 53a of the closing component 5. In this way, the rear installation of the pull tab is completed. Furthermore, during the installation of the pull tab, the claw body 4 and the closing component 5 pivot upward while bending the force unit 6. Therefore, when the pull tab 7 is released, the claw body 4 and the closing component 5 return to their initial positions (see Figure 2 ).

[0040] The closing member 5 can take Figure 2 and Figure 4 The first posture (also called the initial position) shown can be taken Figure 5 and Figure 6 The second posture shown can also be taken Figure 3 The pivot angle of the closing member 5 required to switch from the first posture to the second posture is greater than the pivot angle of the closing member 5 required to switch from the first posture to the third posture.

[0041] The following is a non-limiting description of the structure of each component. The slider body 2 includes an upper wing plate 21, a lower wing plate 22, and a connecting post 23 connecting the upper wing plate 21 and the lower wing plate 22, and these parts are used to define a Y-shaped chain tooth passage. The slider body 2 has left and right front openings 24 and 25 arranged on the left and right sides of the connecting post 23 at its front end, and a rear opening 26 at its rear end. The left and right zipper teeth that enter the slider body 2 through the left and right front openings 24 and 25 engage after passing through the connecting post 23 and exit from the rear opening 26. An upper flange 27 protruding downward can be provided on the left and right side edges of the upper wing plate 21, and a lower flange 28 protruding upward can be provided on the left and right side edges of the lower wing plate 22, but one or both of the above can be omitted. In addition, the slider body 2 can be manufactured by die casting or injection molding as is well known.

[0042] The upper blade 21 includes a cover mounting groove 80 for mounting the base end 31 of the tab mounting cover 3; a support protrusion 85 for supporting the claw body 4 and a support protrusion 86 for supporting the closing member 5; a claw hole 89 extending through the upper blade 21 for the claw end 45 of the claw body 4; a mounting surface 91 on which the closing portion 52 of the closing member 5 is mounted; a mounting surface 92, located behind the mounting surface 91 and on which the tab rod 7j is mounted when the tab is mounted; and guide protrusions 93, located on either side of the mounting surface 91 and having guide inclined surfaces 93a that slope upward along the front. In some cases, the mounting surface 91 is a rearwardly and downwardly inclined surface, while the mounting surface 92 is a flat surface that is lowered relative to the main surface 21z of the upper blade 21. The claw holes 89 are located behind the support protrusions 85 and 86 and extend through the mounting surface 91.

[0043] The cover mounting groove 80 includes: left and right flange grooves 81, into which the left and right mounting flanges 37 provided at the base end portion 31 of the pull-tab mounting cover 3 are individually inserted; and a recess 82, into which the low-back anti-slip member 38 provided at the base end portion 31 of the pull-tab mounting cover 3 is inserted. The flange groove 81 is open at the front and extends rearward from there. The recess 82 is located between the left and right flange grooves 81 and at the front end of the slider body 2, and is recessed downward from the bottom surface of the cover mounting groove 80. A protrusion 29 is provided above the flange groove 81, and the mounting flange 37 is fixed by the plastic deformation of the protrusion 29. In addition, the upper wing plate 21 has an island portion 83 sandwiched by the flange groove 81. In addition, the installation method of the pull-tab mounting cover 3 on the slider body 2 is not limited to the example shown in the figure, and various other methods (such as bonding, welding, etc.) can be used.

[0044] The supporting protrusions 85 and 86 are staggered in the front-to-back direction to optimize the swinging of the claw body 4 and the swinging of the closing component 5. For example, the supporting protrusion 86 is located on the front side of the supporting protrusion 85. When the claw body 4 and the closing component 5 are pivoted by the force from the pull-tab rod 7j in order to release the lock, the closing component 5 is promoted to pivot at a smaller angle than the claw body 4. This can also prevent the pull-tab 7 from falling off. Preferably, the supporting protrusions 85 and 86 are arranged adjacent to each other and are arranged in the internal space (cover groove described later) of the base end portion 31 of the pull-tab mounting cover 3. In the example shown in the figure, the supporting protrusions 85 and 86 are arranged on the island portion 83, but are not limited to this.

[0045] The pull-tab mounting cover 3 is supported by the slider body 2 in a single-arm shape. The pull-tab mounting cover 3 may include: a base end portion 31, which is fixed to the slider body 2; a free end portion 32, which is positioned in a manner away from the upper wing plate 21 upward; and an intermediate portion 33, which is positioned between the base end portion 31 and the free end portion 32 in a manner away from the upper wing plate 21 upward. In addition, the pull-tab mounting cover 3 is formed to define a cover groove 36 extending between the base end portion 31 and the free end portion 32, for example, including an upper plate 34 and an outer peripheral wall 35 suitable for this purpose. The upper plate 34 extends longer in the front-to-back direction and has a shape that is curved in the front-to-back direction and the left-to-right direction. The outer peripheral wall 35 extends downward from the outer periphery of the upper plate 34, for example, having a total of four walls (front wall 35a, rear wall 35b, left wall 35m and right wall 35n) (excluding Figure 1 In addition, refer to Figures 7 to 9 The cover groove 36 extends between the base end portion 31 and the free end portion 32 , and its groove width is defined by the left and right walls 35 m and 35 n.

[0046] The left and right walls 35m and 35n include a first portion provided at the base end portion 31 of the pull-tab mounting cover 3, a second portion provided at the free end portion 32 of the pull-tab mounting cover 3, and an intermediate portion therebetween. The first portion extends from the upper plate 34 to the upper wing plate 21. The second portion extends downward from the upper plate 34 so as to have a lower end surface 35p located at a first height H1 from the reference surface on which the upper wing plate 21 is disposed (see FIG. Figure 1 ). The middle portion extends downward from the upper plate 34 in a manner having a lower end surface 35q located at a second height H2 from the reference surface on which the upper wing plate 21 is arranged (satisfying the condition of H1<H2). A step portion 39 is formed corresponding to the difference between the first height H1 and the second height H2. In addition, the rear wall 35b extends downward from the upper plate 34 in a manner having a lower end surface 35r located at a third height H3 from the upper wing plate 21 (satisfying the condition of H3

[0047] The cover groove 36 includes a first groove extending in the up-down direction at the base end portion 31 of the pull-tab mounting cover 3. The first groove is defined by the front wall 35a and the first portion of the left and right walls 35m and 35n, and is open on the free end portion 32 side. The first groove is also open at the bottom and is closed by the upper wing plate 21. The cover groove 36 includes a second groove extending in the front-to-back direction at the middle portion 33 of the pull-tab mounting cover 3. The second groove is defined by the upper plate 34 (which can serve as a bottom surface) and the middle portion of the left and right walls 35m and 35n, and is open on the upper wing plate 21 side. The cover groove 36 includes a third groove defined by the front wall 35a and the second portion of the left and right walls 35m and 35n at the free end portion 32 of the pull-tab mounting cover 3, and the third groove is open on the upper wing plate 21 side and the base end portion 31 side.

[0048] A retaining member 38 is provided at the lower end of the front wall 35a, and is inserted into a recess 82 in the upper wing plate 21. Mounting flanges 37 projecting in the left-right direction are provided at the lower ends of the front portions of the left and right walls 35m and 35n, and are inserted into flange grooves 81 in the upper wing plate 21. After the tab mounting cover 3 is mounted on the slider body 2, the island portion 83 is positioned between the left and right walls 35m and 35n, that is, within the cover groove 36. The tab mounting cover 3 can be manufactured by stamping, die casting, injection molding, or other methods.

[0049] The claw body 4 is in the locked position (refer to Figure 2 ) and unlock posture (refer to Figure 3 ​) is arranged on the upper wing plate 21 in a swingable manner and is at least partially housed in the pull-tab mounting cover 3. The claw body 4 has a claw end 45 that can be displaced between a position where it retreats to a claw hole 89 that penetrates the upper wing plate 21 and a position that protrudes toward the chain tooth passage of the slider body 2. When the claw body 4 is in a locked position, the claw end 45 protrudes from the claw hole 89 toward the chain tooth passage and engages with the zipper chain tooth. As a result, the displacement of the slider 1 in the longitudinal direction of the zipper (for example, the slider 1 moves according to gravity without operating the pull-tab 7) is prevented. The claw body 4 is made of metal or resin and can be manufactured by stamping, die casting, injection molding or other methods.

[0050] The claw body 4 may include a supported portion 41, which is supported by a support protrusion 85 provided on the upper wing plate 21 (e.g., the island portion 83), and a receiving portion 42, which accommodates the pull-tab rod 7j. The supported portion 41 has a groove 46 into which the support protrusion 85 is inserted. The receiving portion 42 may include an upper arm 43 and a lower arm 44, which extend rearward to define a receiving space 47 for the pull-tab rod 7j. The upper arm 43 is pressed downward by the force applying unit 6 (when the claw body 4 is in the unlocked position). A downward protrusion 43a is provided at the rear end of the upper arm 43, narrowing the entrance to the receiving space 47. The lower arm 44 is a bent arm comprising a downwardly extending downwardly extending downward portion and an inclined portion extending downward and diagonally rearward from the lower end of the downwardly extending portion. The claw end 45 extends downward from the lower end of the inclined portion of the lower arm 44, and its front-to-back width decreases accordingly.

[0051] When the claw body 4 is in the unlocked position (see Figure 3 ), the closing member 5 takes the third posture, and the closing portion 52 is upwardly away from the upper wing plate 21 and is positioned at a height that does not allow the pull tab 7 to be installed on the pull tab installation cover 3. Once the pull tab 7 is installed on the pull tab installation cover 3, it is not desirable for the pull tab 7 to fall off there. Therefore, it is advantageous to set the closing member 5 in a manner that takes the third posture in addition to the first and second postures. In addition, when installing the pull tab 7 ( Figures 4 to 6 ) The closing component 5 is pressed forward by the pull-tab rod 7j and converted to the second posture, but the closing component 5 is not pressed in this way after the pull-tab 7 is installed. The closing component 5 may also be pressed backward by the pull-tab rod 7j that moves backward due to gravity. Therefore, it is predetermined that after the pull-tab 7 is installed, the closing component 5 is converted only from the first posture to the third posture instead of from the first posture to the second posture. In addition, the height of the closing portion 52 of the closing component 5 from the upper wing plate 21 in the third posture is lower than the height of the closing portion 52 of the closing component 5 from the upper wing plate 21 in the second posture.

[0052] The closing member 5 is swingably mounted on the upper wing 21 and is at least partially housed within the pull-tab mounting cover 3. The closing member 5 includes a supported portion 51 supported by a support protrusion 86 provided on the upper wing 21, and a closing portion 52 disposed so as to define a storage space 53a between the closing portion 52 and the supported portion 51 for accommodating a portion of the pull-tab. When the closing member 5 is in a first position, the closing portion 52 contacts the upper wing 21, sealing the pull-tab passage E2. When the closing member 5 is in a second position, the closing portion 52 is positioned upwardly away from the upper wing 21, releasing the seal on the pull-tab passage E2.

[0053] In the example, the closing member 5 generally extends long in the front-to-back direction, has a supported portion 51 at one end (e.g., the front end), has a closing portion 52 at the other end (e.g., the rear end), and has an intermediate portion 53 between the supported portion 51 and the closing portion 52 (see FIG. Figures 10 to 12 ). The supported portion 51 is supported by a support protrusion 86 provided on the upper wing plate 21 (e.g., the island portion 83), thereby enabling the closing member 5 to swing. In addition, the pull-tab passage E2 is a passage that connects the pull-tab inlet between the free end portion 32 of the pull-tab mounting cover 3 and the upper wing plate 21 and the storage space 53a of the closing member 5 and / or the storage space 47 of the claw body 4.

[0054] The supported portion 51 of the closing member 5 has a main protrusion 55 and a relief protrusion 56, thereby defining or forming a space 51a for the support protrusion 86 to be inserted. The main protrusion 55 is arranged closer to the closing portion 52 than the relief protrusion 56. The relief protrusion 56 has a relief surface 56a, which is formed to move away from the main protrusion 55 as it extends downward (i.e., it avoids). More specifically, it is inclined downward in a manner away from the main protrusion 55. Figure 2 In the illustrated posture, the avoidance surface 56a may form an angle within a range of 20° to 70° (or a range of 30° to 60°) relative to the slider moving direction.

[0055] In the example, the closing component 5 has a main rod portion 54 extending in the front-to-back direction at the supported portion 51 and the intermediate portion 53, and the main protrusion 55 and the avoidance protrusion 56 are provided at different positions to protrude downward from the main rod portion 54. The space 51a of the supported portion 51 is open downward, and the width of the opening (in the front-to-back direction) expands as it goes downward. The left-right width of the main protrusion 55 is narrower than that of the avoidance protrusion 56, and the main protrusion 55 is inserted into the groove portion 87 defined by the support protrusion 86 of the upper wing plate 21 and the opposing wall 88 connected to the support protrusion 86. The groove portion 87 is open at the top and rear, and the rear displacement of the closing component 5 is not prevented, so that the closing component 5 can easily become the third posture.

[0056] When the closing member 5 is swung around the contact point or contact portion between the support protrusion 86 and the avoidance surface 56a, a gap is generated between the support protrusion 86 and the main protrusion 55, and the closing member 5 is arranged to be offset to the rear. Figure 3 ), thereby suppressing the situation that the pull tab 7 produces unexpected coming off when the pull tab 7 is operated. In addition, according to the position of the closure member 5 relative to the supporting protrusion 86, the side surface of the supporting protrusion 86 and the main protrusion 55 contacts.

[0057] The accommodation space 53a is defined in the middle portion 53 of the closing member 5 by the main rod portion 54, the closing portion 52 and the main protrusion 55. The closing portion 52 has a side surface 53b facing the main protrusion 55 (see Figure 12 ), and is bent so as to approach the main protrusion 55 as it extends downward from the main rod portion 54, thereby forming a raised edge 53d that rises toward the main protrusion 55 between the side surface 53b of the closing portion 52 and the lower surface 53c of the closing portion 52. This prevents the handle rod portion 7j from escaping from the storage space 53a.

[0058] The closing portion 52 has a main portion 57 having a width greater than that of the main rod portion 54. The main portion 57 has a width sufficient to have a side surface 57a ( Figure 8 ), thereby ensuring a sufficient contact area between the closing portion 52 and the upper wing plate 21 (loading surface 91), thereby improving the posture stability and closing ability of the closing portion 52.

[0059] The closing portion 52 has a pair of fins 58 protruding to both sides in the width direction of the slider. The fins 58 are provided to limit the upward displacement of the closing member 5. When the closing member 5 is in the third posture ( Figure 3 ) The wing 58 contacts the lower end surface of the outer peripheral wall 35 (for example, the left and right walls 35m and 35n) of the pull-tab mounting cover 3. When the closing member 5 is in the second posture ( Figure 5 and Figure 6 ), the flaps 58 contact the lower end surfaces of the left and right walls 35m and 35n of the middle portion 33 of the pull-tab mounting cover 3, or are positioned below the lower end surfaces of the left and right walls 35m and 35n. Specifically, the flaps 58 do not prevent the closure member 5 from changing from the first position to the second position. The position and size of the flaps, as well as the shape of the pull-tab mounting cover 3, are suitable for this purpose. The closure member 5 is made of metal or resin and can be manufactured by stamping, die casting, injection molding, or other methods.

[0060] The force applying unit 6 is provided in the cover groove 36 to apply force to the claw body 4 so that the claw end 45 of the claw body 4 protrudes toward the fastener element passage, and to apply force to the closing member 5 so that the closing portion 52 is placed on the upper wing plate 21 (for example, the above-mentioned placing surface 91) (refer to Figure 1 、 Figure 13 and Figure 14 In this embodiment, the force-applying unit 6 includes: a first elastic portion 64, which at least partially extends along the cover groove 36 and is capable of contacting the claw body 4 at at least one location; and a second elastic portion 65, which at least partially extends along the cover groove 36 and is capable of contacting the sealing member 5 at at least one location. The first elastic portion 64 and the second elastic portion 65 are adjacently arranged with a gap (for example, see the gap 66c) formed therebetween. As a result, the first elastic portion 64 and the second elastic portion 65 do not displace in conjunction with each other, or even if they do displace in conjunction with each other, the extent of the dislocation can be reduced.

[0061] The first elastic portion 64 is at least partially provided between the upper plate 34 of the pull-tab mounting cover 3 and the claw body 4. The second elastic portion 65 is at least partially provided between the upper plate 34 of the pull-tab mounting cover 3 and the closing member 5. When the pull-tab 7 is operated to move the slider, the claw body 4 swings (see Figure 2 and Figure 3 ), accordingly, the first elastic portion 64 bends from a flat posture to an upwardly tilted curved posture. When the pull tab 7 is released, the first elastic portion 64 elastically returns to a flat posture, and the claw body 4 (for example, its upper arm 43) is pressed downward by the first elastic portion 64 to return to its initial posture. When the pull tab 7 is mounted on the slider 1 (primary assembly), the closing member 5 swings (refer to Figures 4 to 6 ), and accordingly, the second elastic portion 65 bends from a flat position to an upwardly curved position. When the pull tab 7 is installed, the second elastic portion 65 elastically returns to a flat position, and the closure member 5 (e.g., its intermediate portion 53 and / or main rod portion 54) is pressed downward by the second elastic portion 65, returning to its original position. The lower surface of the upper plate 34 of the pull tab mounting cover 3 is a gently curved surface, which does not interfere with the elastic deformation of the first elastic portion 64 from a flat position to a curved position. This also applies to the second elastic portion 65.

[0062] Due to the gap between the first elastic portion 64 and the second elastic portion 65 (see, for example, the gap 66c), the correlation between the bending amount of the first elastic portion 64 and the bending amount of the second elastic portion 65 can be eliminated or reduced. Figure 2 and Figure 3 ), the closing member 5 is pressed upward by the tab rod 7j, and the second elastic portion 65 may also undergo elastic deformation. In some cases, the closing member 5 collides with a protrusion of the tab mounting cover 3 (e.g., the rivet protrusion 3b) and stops. In this case, the bending amount of the second elastic portion 65 is less than the bending amount of the first elastic portion 64, which can reduce the degree to which the closing portion 52 of the closing member 5 is lifted from the mounting surface 91 of the upper wing plate 21.

[0063] Reference Figure 14 , the state in which the claw body 4 is selectively displaced (i.e., the state in which the claw body 4 is displaced and the closing component 5 is not displaced) is described. In addition, the state in which the claw body 4 is selectively displaced is a state in which the claw end 45 of the claw body 4 is in contact with the zipper teeth located in the slider 1. In this state, the first elastic portion 64 is pressed by the claw body 4 and bent into an arc shape. In contrast, the second elastic portion 65 maintains a flat posture or bends to a smaller degree than the first elastic portion 64 (as repeatedly explained, this is because there is a gap between the first elastic portion 64 and the second elastic portion 65 (for example, refer to the gap 66c)). The advantage is that, in Figure 14 In the illustrated state, the closing member 5 is urged downward (toward the slider body 2 or the upper blade 21 ) by the second elastic portion 65 .

[0064] More specifically, when the slider 1 is moved by gripping the tab 7 and then released, the slider 1 may come to a stop with the claw tip 45 of the claw body 4 contacting the zipper elements. In this state, if there is no gap between the first elastic portion 64 and the second elastic portion 65 (see, for example, the gap 66c), the elastic deformation of the first elastic portion 64 and the elastic deformation of the second elastic portion 65 will occur at the same level, resulting in a gap between the closure member 5 and the second elastic portion 65. This embodiment avoids or suppresses this problem.

[0065] The urging unit 6 may be a single leaf spring, in which a gap 66c extending at least partially along the cover groove 36 is formed between the first elastic portion 64 and the second elastic portion 65 (see FIG. Figure 1 、 Figure 7 、 Figure 13 、 Figure 15 and Figure 16 ), but not limited thereto. The leaf spring includes a first elastic portion 64 and a second elastic portion 65 adjacent to each other in the width direction of the slider, and a gap 66c formed therebetween, all of which extend linearly and / or in parallel in the front-to-back direction. The leaf spring further includes a connecting portion 68, through which the first elastic portion 64 and the second elastic portion 65 are connected to each other. In addition, the connecting portion 68 extends in the width direction of the slider. In addition, the number of connecting portions 68 is not limited to two (see Figure 13 ), or 1 (see Figure 15 ).

[0066] The leaf spring includes a first end 61 having a first notch 66a formed therein, and a second end 62 having a second notch 66b formed therein. The leaf spring can be attached to the tab mounting cover 3 via the first and second ends 61 and 62. Specifically, the riveted protrusions 3a and 3b of the tab mounting cover 3 are individually inserted into and riveted to the notches 66a and 66b, respectively, thereby attaching the leaf spring to the tab mounting cover 3. This configuration of the leaf spring as a fixed-end beam rather than a single-arm beam reduces the risk of the leaf spring falling off the tab mounting cover 3.

[0067] In the case where the slit 66c is a closed opening that is spatially disconnected from both the first notch 66a and the second notch 66b ( Figure 13 ), the mechanical strength of the leaf spring can be fully ensured. In the case where the gap 66c is an open opening spatially connected to one of the first notch 66a and the second notch 66b ( Figure 15 ), the first elastic portion 64 and the second elastic portion 65 can be bent with a smaller force. Figure 13 and Figure 15 In either case, the first notch 66a and the second notch 66b are opened on the side opposite to the slit 66c, thereby making it easier to attach the leaf spring to the caulking protrusions 3a and 3b of the pull-tab attachment cover 3.

[0068] In addition, the first elastic portion 64 and the second elastic portion 65 are portions that can be elastically deformed or portions that contribute to elastic deformation, and may have a length equal to or greater than the length of the gap 66c. For example, the first elastic portion 64 and the second elastic portion 65 have a length equal to the entire length of the leaf spring, and extend between the end 61d of the first end portion 61 and the end 62d of the second end portion 62 of the leaf spring (see Figure 13 It is also conceivable that the first elastic portion 64 and the second elastic portion 65 occupy only a portion of the entire length of the leaf spring.

[0069] It should be noted that, depending on the embodiment, the first elastic portion 64 can not only apply downward force to the claw body 4, but also apply downward force to the closing member 5. This may be due to the fact that the closing portion 52 of the closing member 5 is wider than the supported portion 51 and the intermediate portion 53. Similarly, depending on the embodiment, the second elastic portion 65 can apply downward force not only to the closing member 5, but also to the claw body 4.

[0070] The leaf spring can be manufactured by punching a metal plate. It is not necessary to completely punch through a predetermined portion of the metal plate in order to form the slit 66c. Figure 16As shown, the prescribed portion 6z of the metal plate corresponding to the slit 66c can also remain on the leaf spring. In this case, when the first elastic portion 64 and the second elastic portion 65 are bent into an arc shape by the pull tab operation and apply a force to the closing member 5, the prescribed portion 6z also undergoes elastic deformation, applying an additional force to the closing member 5. In other words, a greater force is applied to the closing member 5 than when the prescribed portion 6z is not provided.

[0071] The urging unit 6 is not limited to a single leaf spring, and may include a pair of leaf springs 6P and 6Q (see Figure 17 as well as Figure 18 ). Figure 17 The leaf spring 6P is provided to press one of the claw body 4 and the closing member 5 downward. Figure 18 The leaf spring 6Q is provided to press the claw body 4 and the closing member 5 downward in the other direction. The leaf spring 6P and the leaf spring 6Q are mounted on the common pull-tab mounting cover 3, so they partially overlap. One of the pair of leaf springs 6P and 6Q includes a first elastic portion, and the other of the pair of leaf springs 6P and 6Q includes a second elastic portion. The first and second elastic portions are arranged adjacently with a gap between them, achieving the same effect as described above. Each leaf spring can be fixed to the pull-tab mounting cover 3 at its ends.

[0072] The force applying unit 6 is not limited to a leaf spring, and can include one or a pair of wire springs (see Figure 19 ). Figure 19 The wire spring 6R is provided to press one of the claw body 4 and the closing member 5 downward. Figure 19 The wire spring 6S is provided to press the other of the claw body 4 and the closing member 5 downward. One of the wire spring 6R and the wire spring 6S includes a first elastic portion, and the other of the wire spring 6R and the wire spring 6S includes a second elastic portion. The first elastic portion and the second elastic portion are provided adjacent to each other with a gap formed therebetween, and the same effect as described above can be obtained. Figure 19 The wire spring 6R and the wire spring 6S are connected and provided as one wire spring. Each wire spring can be fixed to the pull-tab mounting cover 3 at both ends thereof.

[0073] As an optional feature, the closing portion 52 of the closing member 5 includes an upward protrusion 8 protruding toward the free end portion 32 of the pull-tab mounting cover 3. Compared to a case where the upward protrusion 8 is not provided, the gap between the pull-tab mounting cover 3 and the closing portion 52 can be reduced, thereby suppressing the entry of foreign matter.

[0074] In order to prevent the upward projection 8 from interfering with the force applying unit 6, an opening or a notch can be formed in the leaf spring used as the force applying unit 6. Figure 7The leaf spring 36 is a flat plate, and the ... Figure 3 ).

[0075] As another optional feature, the closure member 5 is configured to adopt a third posture synchronously with (in other words, simultaneously with) the pivoting of the claw body 4 by the pull tab 7, causing the claw end 45 to retract into the claw hole 89. In this third posture, the closure portion 52 is positioned upwardly away from the upper wing plate 21 (e.g., its main surface 21z) and at a height lower than that of the closure portion 52 in the second posture. In particular, when the closure member 5 is in the third posture, the protrusion 11 provided on one side of the closure member 5 and the pull tab mounting cover 3 engages with the recess 12 provided on the other side of the closure member 5 and the pull tab mounting cover 3, thereby restricting the displacement of the closure member 5 relative to the pull tab mounting cover 3 (e.g., in the front-to-back direction (the slider movement direction) or in addition to the left-to-right direction (the slider width direction)), thereby helping to prevent unintended expansion of the gap between the closure portion 52 and the upper wing plate 21.

[0076] based on Figure 1 With the above description, the assembly method of the slider 1 is obvious to those skilled in the art. In the example, the force unit 6 is mounted on the pull tab mounting cover 3. The supported portion of the claw body 4 is engaged with the supporting protrusion 85 of the upper wing plate 21, and the claw body 4 is arranged on the slider body 2. Similarly, the supported portion of the closing component 5 is engaged with the supporting protrusion 86 of the upper wing plate 21, and the closing component 5 is arranged on the slider body 2. The pull tab mounting cover 3 is mounted on the slider body 2, and a riveting process is performed as needed. In this way, the one-time assembly is completed. Then, it can be as follows Figures 4 to 6 As shown, the pull tab 7 is mounted on the slider 1 (particularly, the pull tab mounting cover 3).

[0077] Based on the above disclosure, those skilled in the art can add various changes to the features and embodiments. The reference numerals added to the claims are for reference only and should not be used for the purpose of limiting the interpretation of the claims.

Claims

1. A slider, characterized in that: include: A slider body (2), comprising an upper wing plate (21), a lower wing plate (22), and a connecting column (23) connecting the upper wing plate (21) and the lower wing plate (22); A pull tab mounting cover (3) includes: a base end portion (31) fixed to the slider body (2); and a free end portion (32) positioned upwardly away from the upper wing plate (21), wherein the pull tab mounting cover (3) is formed to define a cover groove (36) extending between the base end portion (31) and the free end portion (32); A claw body (4) is swingably mounted on the upper wing plate (21), at least partially housed in the pull tab mounting cover (3), and has a claw end (45) capable of moving between at least a position of retreating to a claw hole (89) penetrating the upper wing plate (21) and a position of projecting toward the chain tooth passage of the slider body (2); A closing member (5) at least partially housed in the pull-tab mounting cover (3) comprises: a supported portion (51) supported by a supporting protrusion (86) provided on the upper wing plate (21); and a closing portion (52) provided to define a storage space (53a) for storing a portion (7j) of the pull-tab (7) between the closing portion (52) and the supported portion (51); when the closing member (5) is in a first posture, the closing portion (52) contacts the upper wing plate (21) to close the pull-tab passage (E2); and when the closing member (5) is in a second posture, the closing portion (52) is positioned upwardly away from the upper wing plate (21) to release the closure of the pull-tab passage (E2); and A force applying unit (6, 6P, 6Q, 6R, 6S) is provided in the cover groove (36), and the force applying unit (6, 6P, 6Q, 6R, 6S) applies force to the claw body (4) in such a manner that the claw end (45) protrudes toward the chain tooth passage, and applies force to the closing component (5) in such a manner that the closing portion (52) is placed on the upper wing plate (21). The force-applying unit (6, 6P, 6Q, 6R, 6S) includes: a first elastic portion (64), which at least partially extends along the cover groove (36) and can contact the claw body (4) at least at one location; and a second elastic portion (65), which at least partially extends along the cover groove (36) and can contact the closing component (5) at least at one location, and the first elastic portion (64) and the second elastic portion (65) are adjacently arranged with a gap (66c) formed therebetween.

2. The slider according to claim 1, wherein: When the claw end (45) of the claw body (4) is in contact with the zipper teeth located in the slider (1), the first elastic portion (64) is pressed by the claw body (4) and bent into an arc shape, and the second elastic portion (65) maintains a flat posture or bends to a smaller degree than the first elastic portion (64).

3. The slider according to claim 1 or 2, characterized in that: The force applying unit is a single leaf spring, and in the force applying unit, a gap (66c) extending at least partially along the cover groove (36) is formed as the interval between the first elastic portion (64) and the second elastic portion (65). The leaf spring includes at least one connecting portion (68) in addition to the first elastic portion (64) and the second elastic portion (65). The first elastic portion (64) and the second elastic portion (65) are connected to each other via the one or more connecting portions (68).

4. The slider according to claim 3, wherein: The leaf spring includes a first end portion (61) formed with a first notch (66a) and a second end portion (62) formed with a second notch (66b). The slit (66c) is a closed opening that is spatially disconnected from both the first notch (66a) and the second notch (66b).

5. The slider according to claim 4, characterized in that: The leaf spring is fixed to the pull-tab mounting cover (3) via the first end portion (61) and the second end portion (62).

6. The slider according to claim 4, characterized in that: At least one of the first notch (66a) and the second notch (66b) opens on the side opposite to the slit (66c).

7. The slider according to claim 3, characterized in that: The claw body (4) includes an upper arm and a lower arm (43, 44) that define a receiving space (47), the upper arm (43) is suitable for being pressed downward by the first elastic part (64), the claw end (45) is arranged on the lower arm (44), and the receiving space (47) receives a part (7j) of the pull tab (7).

8. The slider according to claim 7, characterized in that: The closing member (5) has an intermediate portion (53) between the closing portion (52) and the supported portion (51), and the intermediate portion (53) is adapted to be pressed downward by the second elastic portion (65).

9. The slider according to claim 7, characterized in that: The accommodation space (47) of the claw body (4) and the accommodation space (53a) of the closing component (5) are arranged adjacent to each other in the width direction of the slider.

10. The slider according to claim 7, characterized in that: The urging unit includes a pair of leaf springs (6P, 6Q), one of the leaf springs (6P, 6Q) has the first elastic portion (64), and the other of the leaf springs (6P, 6Q) has the second elastic portion (65), or The urging unit includes a pair of wire springs (6R, 6S), one of the wire springs (6R, 6S) has the first elastic portion (64), and the other of the wire springs (6R, 6S) has the second elastic portion (65).

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