Zipper puller

Abstract

The present application provides a kind of puller, wherein, closure component (5) is arranged to be pressed with claw body (4) by pull tab (7) and to take the third attitude synchronously with claw end (45) being displaced to the position of retreat to claw hole (89), in the third attitude, closure (52) is positioned at the height lower than the height of closure (52) in the second attitude, and is away from upper wing plate (21) towards upper side.In the third attitude of closure component (5), the protrusion (11) arranged in one of closure component (5) and pull tab mounting cover (3) is engaged with the recess (12) arranged in the other of closure component (5) and pull tab mounting cover (3), and the displacement of closure component (5) relative to pull tab mounting cover (3) is limited.According to the present application, the gap between the closure of the closure component and the upper wing plate can be inhibited from accidentally expanding.

Description

Technical Field

[0001] This invention relates to a zipper pull. Background Technology

[0002] Patent Document 1 discloses a pull head (first-time assembly) capable of post-installation of a pull tab, specifically disclosing that a stop claw and an opening / closing component are mounted on an upper wing plate in a swingable manner, opening and closing the pull tab insertion gap according to the posture of the opening / closing component. In this document... Figures 9 to 11 The document provides instructions on the installation process of the pull tab. Figure 13 The document indicates the locked state where the claw part of the stop claw body protrudes into the chain tooth guide path. Figure 14 The lock is unlocked.

[0003] Patent document 2 discloses the following technology: the ability to retrofit the zipper pull by means of a block that is hinged to the zipper head.

[0004] Patent document 3 discloses the following technology: a component with a locking arm is installed on the zipper body, thereby making it easy to install the zipper tab.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: International Publication No. 2018 / 100691

[0008] Patent Document 2: Japanese Patent Application Publication No. 2016-93479

[0009] Patent Document 3: US Patent Publication No. 2010-186200 Summary of the Invention

[0010] In a configuration where the locking member and claw are lifted together when the pull tab is operated to unlock, there is a possibility that the gap between the closing part of the locking member and the upper wing plate may unexpectedly widen. The inventors of this application have discovered a new problem of minimizing such unexpected gap widening.

[0011] One aspect of this disclosure relates to a zipper pull comprising: a zipper pull body including an upper wing plate, a lower wing plate, and a connecting post connecting the upper wing plate and the lower wing plate; a zipper tab mounting cover including a base end fixed to the zipper pull body and a free end positioned upwardly away from the upper wing plate, the zipper tab mounting cover being shaped to define a cover groove extending between the base end and the free end; a claw body disposed on the upper wing plate in a pivoting manner, at least partially housed within the zipper tab mounting cover, having a claw tip displaceable at least between a position retracted to a claw hole penetrating the upper wing plate and a position protruding into the chain tooth passage of the zipper pull body; and a closing member. It is at least partially housed in a pull tab mounting cover, including: a supported portion supported by a support protrusion on the upper wing plate; and a closing portion configured to define a receiving space for the pull tab between the closing portion and the supported portion, wherein when the closing member is in a first posture, the closing portion contacts the upper wing plate to close the pull tab with a passage, and when the closing member is in a second posture, the closing portion is positioned upwards away from the upper wing plate to release the closure of the pull tab with the passage; and a force-applying member configured to apply force to the claw body such that the claw tip protrudes into the chain tooth passage, and to apply force to the closing member such that the closing portion is placed on the upper wing plate. The closing member is configured to simultaneously assume a third posture when the claw body is pressed by the pull tab and pivots to displace the claw tip to a position retracted into the claw hole, in which the closing portion is positioned upwards away from the upper wing plate at a height lower than that of the closing portion in the second posture. When the closing component is in the third posture, the protrusion provided on one of the closing component and the pull tab mounting cover engages with the recess provided on the other of the closing component and the pull tab mounting cover to limit the displacement of the closing component relative to the pull tab mounting cover.

[0012] In some embodiments, a protrusion is provided on the closing member, and a recess is provided on the pull tab mounting cover. The outer peripheral wall of the pull tab mounting cover can be shaped to avoid interference with the protrusion when the closing member is in the second posture.

[0013] In some embodiments, the closure portion has a pair of flaps that protrude to both sides in the width direction of the pull head, and the protrusion is disposed on at least one of the pair of flaps.

[0014] In some embodiments, the flap has a first side facing the base end of the pull tab mounting cover and a second side opposite to the first side, with the protrusion partially provided close to the second side.

[0015] In some implementations, the protrusion is combined with both the wing and the closure.

[0016] In some implementations, the width of the protrusion is narrower than the width of the wing in the width direction of the pull head.

[0017] In some embodiments, a recess is provided on the lower end face of the outer peripheral wall of the pull tab mounting cover. The recess may have openings on the inner and lower surfaces of the outer peripheral wall of the pull tab mounting cover.

[0018] In some embodiments, the claw body has an upper arm and a lower arm for defining a receiving space for receiving the pull tab, the upper arm being adapted to be pressed downward by a force-applying component, and a claw end being provided on the lower arm. The receiving space of the claw body and the receiving space of the closing component are arranged adjacent to each other in the width direction of the pull head.

[0019] Invention Effects

[0020] According to one method of this disclosure, it is possible to promote the suppression of unintended gap widening. Attached Figure Description

[0021] Figure 1 This is a schematic perspective view of a zipper pull that relates to one aspect of this disclosure.

[0022] Figure 2 This is a schematic diagram showing the zipper pull in the locked state.

[0023] Figure 3 This is a schematic diagram showing the slider in the unlocked state.

[0024] Figure 4 This is a schematic diagram showing the installation process of the pull tab being installed on the pull head (a primary assembly).

[0025] Figure 5 This is a schematic diagram showing the installation process of the pull tab being installed on the pull head (a primary assembly).

[0026] Figure 6 This is a schematic diagram showing the installation process of the pull tab being installed on the pull head (a primary assembly).

[0027] Figure 7 This is a rough bottom view of the leaf spring mounting cover, with the outline of the leaf spring represented by double-dotted lines.

[0028] Figure 8 This is a rough bottom view of the pull tab mounting cover. The outline of the claw body is represented by a double-dotted line, and the outline of the closing component is represented by a dashed line.

[0029] Figure 9 This is a rough three-dimensional cross-sectional view of the left half of the pull tab mounting cover.

[0030] Figure 10 It is a schematic three-dimensional diagram of the enclosed component.

[0031] Figure 11 It is a rough top view of the enclosed component.

[0032] Figure 12This is a schematic right view of the enclosed component, showing the contact state between the support protrusion and the clearance surface.

[0033] Figure 13 This is a schematic diagram of another example of a pull tab.

[0034] Figure 14 This is a schematic diagram used to illustrate pressing the closing component forward according to the orientation of the pull tab relative to the pull head body.

[0035] Figure 15 This is a schematic diagram used to illustrate pressing the closing component forward according to the orientation of the pull tab relative to the pull head body.

[0036] Explanation of reference numerals in the attached figures

[0037] 1. Pull head

[0038] 2. Pull-out body

[0039] 3. Pull-out tab mounting cover

[0040] 4 claw body

[0041] 5. Enclosed components

[0042] 6. Force-applying components

[0043] 7. Film Pulling

[0044] 8. Protruding upwards

[0045] 9. Depression

[0046] 11 convex part

[0047] 12 recess

[0048] 85 Support protrusion

[0049] 86 Support protrusions

[0050] 89 Claw Holes

[0051] E1 Film Pulling Inlet

[0052] E2 film puller channel Detailed Implementation

[0053] Hereinafter, with reference to the accompanying drawings, non-limiting embodiments and features of the present invention will be described. Those skilled in the art will be able to combine the various embodiments and / or features without excessive explanation, and will also understand the synergistic effects of such combinations. Repeated descriptions between embodiments are generally omitted. The accompanying drawings are primarily for the purpose of describing the invention and are simplified for ease of drawing. The features are not only applicable to the zipper pulls disclosed in this specification, but should be understood as general features applicable to various other zipper pulls not disclosed in this specification.

[0054] Figure 1 This is an exploded perspective view of zipper pull 1. The zipper with zipper pull 1 assembled is omitted from the diagram. The forward movement of zipper pull 1 engages the left and right zipper teeth, and the backward movement of zipper pull 1 disengages the zipper teeth. Hereinafter, the direction of movement of zipper pull 1 for opening and closing the zipper will be defined as the forward and backward direction (refer to...). Figure 1 The double-headed arrow FB). This direction is also referred to as the length direction of the zipper (and the length direction of the slider). Additionally, the front openings 24 and 25 sides of the slider (see below) Figure 1 Arrow F) is set to the front, and the rear opening 26 side of the pull head is described below (refer to...). Figure 1 Arrow B) is set to the rear. The width direction of the zipper (and the width direction of the zipper pull), which is orthogonal to the front-back direction, is set to the left-right direction (refer to...). Figure 1 The double-headed arrow (LR) defines the direction orthogonal to both the forward / backward and left / right directions as the up / down direction (refer to...). Figure 1 The double-headed arrow UD will be used for illustration. Furthermore, the up-down direction does not necessarily refer to the vertical direction (the direction of gravity). For example, when the length of the zipper is positioned vertically, the up-down direction of the zipper pull 1 is included in the horizontal direction (orthogonal to the vertical direction). The directions referenced in this specification are independent of the vertical direction.

[0055] The zipper pull 1 includes: a zipper pull body 2; a zipper 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 member 6. The zipper tab 7 can be subsequently installed onto a primary assembly formed by assembling these components. In this specification, zipper pull 1 refers to the primary assembly, but is not limited thereto, and sometimes also refers to a secondary assembly obtained by subsequently installing the zipper tab 7 onto the primary assembly (specifically, the zipper tab mounting cover 3).

[0056] The pull tab 7 is a posture control element that changes the posture of the claw body 4 through contact and / or through contact with the closing component 5. The pull tab 7 can take various shapes or structures, but typically it has a pull tab opening 7d at its mounting end 7a, with a pull tab rod 7j extending in a manner that at least partially defines the pull tab opening 7d. In the illustrated example, the pull tab rod 7j includes: a pair of straight rods 7e extending along a predetermined direction D7 (e.g., the length direction of the pull tab 7); and a curved rod 7f connecting these straight rods 7e. The pull tab 7 can also be simply a ring, to which additional components such as straps or wires can be mounted to improve its operability.

[0057] By operating the pull tab 7, the state of the pull head 1 can be adjusted. Figure 2 The locked state shown (the claw tip 45 protrudes into the chain tooth passage located between the upper wing plate 21 and the lower wing plate 22, described later) and Figure 3The system switches between the shown locked / unlocked state (the state where the claw tip 45 retracts from the chain tooth passage to the claw hole 89). Figure 3 In the middle, the pull tab 7 is pulled diagonally upward and forward, and the pull tab rod 7j presses the claw body 4 diagonally upward and forward, causing the claw body 4 to pivot upward and backward, and the claw end 45 retracts from the chain tooth passage to the claw hole 89 of the upper wing plate 21. The closing component 5 is also pressed diagonally upward and forward by the pull tab rod 7j and pivots upward and backward, but stops upon colliding with the protrusion of the pull tab mounting cover 3 (e.g., the riveting protrusion 3a described later). When the pull tab 7 is released, the claw body 4 and the closing component 5 return to their initial positions due to the force applied by the force-applying component 6. Figure 2 The claw 4 and the closing member 5 also move in the same way when the pull tab 7 is pulled diagonally upward and backward. It is also envisioned that the closing member 5 will not pivot when the lock is released (for example, the receiving space 53a of the closing member 5 described later is formed to be larger), but in this case it is difficult to achieve a low height of the pull head 1.

[0058] like Figures 4 to 6 As shown, the pull tab 7 can also be installed on the pull head 1 to meet the customer's needs for changing or replacing the pull tab. First, the pull tab rod 7j is placed on the mounting surface 92 of the upper wing plate 21 at the pull tab inlet E1 between the free end 32 (e.g., 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 member 5 is pressed by the pull tab rod 7j and pivots upward, 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 recess 9 and is received. That is, the recess 9 at least partially accommodates the upward protrusion 8. Furthermore, according to the embodiment, the closing member 5 is pressed forward by the pull tab rod 7j and can pivot at the foremost position (for example, pivoting when the main protrusion 55 is in contact with the support protrusion 86, as described later). Since the upward protrusion 8 is accommodated in the recess 9, a pull tab passage E2 of a size sufficient for the pull tab rod 7j to pass through is provided between the closing member 5 and the upper wing plate 21. The pull tab rod 7j can advance through the pull tab passage E2 and enter the receiving space 47 of the claw body 4 and the receiving space 53a of the closing member 5. In this way, the rear installation of the pull tab is completed. In addition, during the installation of the pull tab, the claw body 4 and the closing member 5 pivot upward while bending the force-applying member 6. Therefore, when the pull tab 7 is released, the claw body 4 and the closing member 5 return to their initial positions due to the force applied from the force-applying member 6 (see reference). Figure 2 ).

[0059] Enclosed component 5 can take Figure 2 and Figure 4 The first posture shown (also known as the initial position) is capable of taking... Figure 5 and Figure 6 The second posture shown can also be adopted Figure 3 The third posture is shown. The pivot angle of the closed component 5 required to transition from posture 1 to posture 2 is greater than the pivot angle of the closed component 5 required to transition from posture 1 to posture 3.

[0060] The following is a non-limiting description of the construction of each component. The zipper pull 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, defining a Y-shaped zipper tooth passage. The zipper pull body 2 has left and right front openings 24 and 25 located 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 entering the zipper pull body 2 through the left and right front openings 24 and 25 engage after passing through the connecting post 23 and exit through the rear opening 26. Lower flanges 27 protruding downwards can be provided on the left and right side edges of the upper wing plate 21, and lower flanges 28 protruding upwards can be provided on the left and right side edges of the lower wing plate 22, but one or both can be omitted. Furthermore, the zipper pull body 2 can be manufactured by die casting or injection molding, as is known.

[0061] The upper wing plate 21 includes: a cover mounting groove 80 for mounting the base end 31 of the pull tab mounting cover 3; a support protrusion 85 supporting the claw body 4 and a support protrusion 86 supporting the closing member 5; a claw hole 89 penetrating the upper wing plate 21 for the claw end 45 of the claw body 4; a mounting surface 91 for mounting the closing portion 52 of the closing member 5; a mounting surface 92 disposed behind the mounting surface 91 for mounting the pull tab rod portion 7j when the pull tab is installed; and guide protrusions 93 disposed on the left and right sides of the mounting surface 91, having guide inclined surfaces 93a that slope forward. In some cases, the mounting surface 91 is an inclined surface that slopes backward and downward, and the mounting surface 92 is a flat surface that is lowered in height relative to the main surface 21z of the upper wing plate 21. The claw hole 89 is disposed behind the support protrusions 85 and 86 and is formed by penetrating the mounting surface 91.

[0062] The cover mounting groove 80 includes: left and right flange grooves 81 for individual insertion of the left and right mounting flanges 37 disposed at the base end 31 of the pull tab mounting cover 3; and a recess 82 for embedding the low-back anti-slip member 38 disposed at the base end 31 of the pull tab mounting cover 3. The flange grooves 81 open at the front and extend rearward from there. The recess 82 is located between the left and right flange grooves 81 and at the front end of the pull tab body 2, and is recessed downward from the bottom surface of the cover mounting groove 80. A protrusion 29 is provided above the flange grooves 81, and the mounting flanges 37 are fixed by the plastic deformation of the protrusion 29. In addition, the upper wing plate 21 has an island portion 83 clamped by the flange grooves 81. Furthermore, the mounting method of the pull tab mounting cover 3 to the pull tab body 2 is not limited to the example shown in the figure, and various other methods (such as bonding, welding, etc.) can be used.

[0063] The support protrusions 85 and 86 are offset in the front-rear direction to optimize the swinging of the claw body 4 and the closing member 5. For example, the support protrusion 86 is located in front of the support protrusion 85. When the claw body 4 and the closing member 5 are pivoted under force from the pull tab rod portion 7j to release the locking claw body 4, the closing member 5 is encouraged to pivot at an angle smaller than that of the claw body 4. This also helps to prevent the pull tab 7 from falling off. Preferably, the support protrusions 85 and 86 are arranged adjacent to each other in the inner space (the 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 support protrusions 85 and 86 are provided in the island portion 83, but this is not a limitation.

[0064] The pull tab mounting cover 3 is supported by the pull head body 2 in a single-arm configuration. The pull tab mounting cover 3 may include: a base end 31, which is fixed to the pull head body 2; a free end 32, which is positioned upwards away from the upper flange 21; and a middle portion 33, positioned between the base end 31 and the free end 32, also positioned upwards away from the upper flange 21. Furthermore, the pull tab mounting cover 3 is formed to define a cover groove 36 extending between the base end 31 and the free end 32, for example including an upper plate 34 and an outer peripheral wall 35 suitable for this purpose. The upper plate 34 extends elongated in the front-rear direction and has a curved shape in both the front-rear and left-right directions. The outer peripheral wall 35 extends downwards 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 31 and the free end 32, and its width is defined by the left and right walls 35m and 35n.

[0065] The left and right walls 35m and 35n include a first portion disposed at the base end 31 of the pull tab mounting cover 3, a second portion disposed at the free end 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 with a lower end face 35p located at a first height H1 distance from the reference plane on which the upper wing plate 21 is disposed (see reference). Figure 1 The middle portion extends downward from the upper plate 34 with a lower end face 35q located at a second height H2 distance from the reference plane on which the upper wing plate 21 is disposed (satisfying the condition H1 < H2). A step portion 39 is formed corresponding to the difference between the first height H1 and the second height H2. Furthermore, the rear wall 35b extends downward from the upper plate 34 with a lower end face 35r located at a third height H3 distance from the upper wing plate 21 (satisfying the condition H3 < H1 < H2). The vertical width of the pull tab inlet E1 is minimum between the rear wall 35b and the upper wing plate 21.

[0066] The cover groove 36 at the base end 31 of the pull tab mounting cover 3 includes a first groove extending in the vertical direction. This first groove is defined by a first portion of the front wall 35a and the left and right walls 35m, 35n, and opens on the free end 32 side. The first groove also opens below and is closed by the upper wing plate 21. The cover groove 36 at the middle portion 33 of the pull tab mounting cover 3 includes a second groove extending in the front-rear direction. This second groove is defined by the middle portion of the upper plate 34 (which can serve as the bottom surface) and the left and right walls 35m, 35n, and opens on the upper wing plate 21 side. The cover groove 36 at the free end 32 of the pull tab mounting cover 3 includes a third groove defined by a second portion of the front wall 35a and the left and right walls 35m, 35n, which opens on the upper wing plate 21 side and the base end 31 side.

[0067] An anti-detachment component 38 is provided at the lower end of the front wall 35a, and this anti-detachment component 38 is inserted into the recess 82 of the upper wing plate 21. Mounting flanges 37 protruding 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 the flange grooves 81 of the upper wing plate 21. After the pull tab mounting cover 3 is installed on the pull head body 2, the island portion 83 is positioned between the left and right walls 35m and 35n, i.e., within the cover groove 36. The pull tab mounting cover 3 can be manufactured by stamping, die casting, injection molding, or other methods.

[0068] Claw 4 in locked position (refer to) Figure 2 ) and lock / unlock posture (refer to) Figure 3The zipper pull 1 is mounted on the upper wing plate 21 in a swingable manner and is at least partially housed within the zipper pull mounting cover 3. The zipper pull 4 has a zipper tip 45 that is displaceable between a position retracted to a zipper hole 89 penetrating the upper wing plate 21 and a position protruding into the zipper tooth passage of the zipper pull body 2. When the zipper pull 4 is in a locked position, the zipper tip 45 protrudes from the zipper hole 89 into the zipper tooth passage and engages with the zipper teeth. Thus, displacement of the zipper pull 1 along the length of the zipper (e.g., without operation of the zipper pull 7, the zipper pull 1 moves under gravity) is prevented. The zipper pull 4 is made of metal or resin and can be manufactured by stamping, die casting, injection molding, or other methods.

[0069] The claw body 4 may include: a supported portion 41 supported by a support protrusion 85 provided on the upper wing plate 21 (e.g., island portion 83); and a receiving portion 42 for receiving the pull tab rod portion 7j. The supported portion 41 has a groove 46 for inserting the support protrusion 85. The receiving portion 42 may have an upper arm 43 and a lower arm 44 extending rearward to define a receiving space 47 for receiving the pull tab rod portion 7j. The upper arm 43 (when the claw body 4 is in the locked-out position) is pressed downward by a force-applying member 6. A downward protrusion 43a is provided at the rear end of the upper arm 43 to narrow the entrance of the receiving space 47. The lower arm 44 is a curved arm including a downwardly extending drooping portion and an inclined portion extending downward and obliquely rearward from the lower end of the drooping portion. The claw tip 45 extends downward from the lower end of the inclined portion of the lower arm 44, and its front-to-back width decreases accordingly.

[0070] The claw body 4 is in the unlocked position (see reference). Figure 3 When the closure component 5 is in its third position, the closure portion 52 is positioned upwards away from the upper wing plate 21, at a height that prevents the pull tab 7 from being installed on the pull tab mounting cover 3. It is undesirable for the pull tab 7 to detach from the pull tab mounting cover 3 once it has been installed there. Therefore, it is advantageous for the closure component 5 to be positioned in a third position in addition to the first and second positions. Furthermore, when installing the pull tab 7 ( Figures 4 to 6 The sealing component 5 is pressed forward by the pull tab rod 7j to switch to the second posture, but after the pull tab 7 is installed, the sealing component 5 will not be pressed in this way. The sealing component 5 may also be pressed backward by the pull tab rod 7j, which moves backward due to gravity. Therefore, it is planned that after the pull tab 7 is installed, the sealing component 5 will only switch from the first posture to the third posture, rather than from the first posture to the second posture. In addition, the height of the sealing part 52 of the sealing component 5 from the upper wing plate 21 in the third posture is lower than the height of the sealing part 52 of the sealing component 5 from the upper wing plate 21 in the second posture.

[0071] The closure member 5 is pivotally mounted on the upper wing plate 21 and is at least partially housed within the pull tab mounting cover 3. The closure member 5 includes: a supported portion 51 supported by a support protrusion 86 on the upper wing plate 21; and a closing portion 52 configured to define a pull tab receiving space 53a between the closing portion 52 and the supported portion 51. In a first position, the closing portion 52 contacts the upper wing plate 21, closing the pull tab via the passage E2. In a second position, the closing portion 52 is positioned upwards away from the upper wing plate 21, releasing the closure of the pull tab via the passage E2.

[0072] In the example, the closure member 5 extends generally in the front-rear direction, with a supported portion 51 at one end (e.g., the front end) and a closed portion 52 at the other end (e.g., the rear end), and an intermediate portion 53 between the supported portion 51 and the closed portion 52. 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 allowing the closure member 5 to swing. Furthermore, the pull tab passage E2 is a passage that connects the pull tab inlet between the free end 32 of the pull tab mounting cover 3 and the upper wing plate 21, and the receiving space 53a of the closure member 5 and / or the receiving space 47 of the claw body 4.

[0073] The supported portion 51 of the closure member 5 has a main protrusion 55 and a clearance protrusion 56, thereby defining or forming a space 51a for the support protrusion 86 to be inserted. The main protrusion 55 is positioned closer to the closure portion 52 than the clearance protrusion 56. The clearance protrusion 56 has a clearance surface 56a, which is shaped to slope downwards away from the main protrusion 55 (i.e., clearance) as it extends downwards. More specifically, it slopes downwards away from the main protrusion 55. In the closure member 5... Figure 2 When in the shown posture, the avoidance surface 56a can form an angle within the range of 20° to 70° (or 30° to 60°) relative to the direction of movement of the pull head.

[0074] In the example, the enclosing member 5 has a main rod portion 54 extending in the front-rear direction in the supported portion 51 and the intermediate portion 53. A main protrusion 55 and a clearance protrusion 56 are provided at different positions protruding downwards from the main rod portion 54. The space 51a of the supported portion 51 opens downwards, and the opening width (in the front-rear direction) expands downwards. The main protrusion 55 is narrower in the left-right direction than the clearance protrusion 56. The main protrusion 55 is inserted into a groove 87 defined by the support protrusion 86 of the upper wing plate 21 and the opposing wall 88 that engages with the support protrusion 86. The groove 87 is open at the top and rear, so the rearward displacement of the enclosing member 5 is not prevented, and the enclosing member 5 can easily assume a third posture.

[0075] When the closing member 5 swings around the contact point or contact area between the support protrusion 86 and the clearance surface 56a, a gap is created between the support protrusion 86 and the main protrusion 55, and the closing member 5 is offset rearward. This facilitates the closing member 5 to assume a third posture when unlocked. Figure 3 This prevents the pull tab 7 from accidentally falling off when it is operated. Furthermore, depending on the position of the closing member 5 relative to the support protrusion 86, the support protrusion 86 and the main protrusion 55 are in lateral contact.

[0076] The accommodating space 53a is defined in the middle portion 53 of the enclosed member 5 by the main rod portion 54, the enclosed portion 52, and the main protrusion 55. The enclosed portion 52 has a side 53b facing the main protrusion 55 (see reference). Figure 12 The pull tab 7j bends downwards from the main rod portion 54 and approaches the main protrusion 55 accordingly, forming a raised edge 53d that bulges toward the main protrusion 55 between the side surface 53b and the lower surface 53c of the closing portion 52. This prevents the pull tab 7j from disengaging from the receiving space 53a.

[0077] The closing portion 52 has a main portion 57 whose width is greater than that of the main rod portion 54. The width of the main portion 57 is sufficient to have a side 57a facing the upper arm 43 of the claw body 4. Figure 8 This ensures sufficient contact area between the closure 52 and the upper wing plate 21 (mounting surface 91), thereby improving the attitude stability and sealing capability of the closure 52.

[0078] The closure 52 has a pair of flaps 58 protruding to both sides in the width direction of the pull head. The flaps 58 are provided to limit the upward displacement of the closure member 5 when the closure member 5 is in the third posture ( Figure 3 The wing 58 contacts the lower end face of the outer peripheral wall 35 (e.g., left and right walls 35m, 35n) of the pull tab mounting cover 3. When the closed component 5 is in the second posture... Figure 5 and Figure 6 The wing 58 contacts or is positioned below the lower end faces of the left and right walls 35m and 35n of the middle portion 33 of the pull tab mounting cover 3. That is, the wing 58 does not obstruct the transition of the sealing member 5 from the first posture to the second posture; the position and size of the wing and the shape of the pull tab mounting cover 3 are suitable for this purpose. The sealing member 5 is made of metal or resin and can be manufactured by stamping, die casting, injection molding, or other methods.

[0079] The force-applying component 6 is configured to apply force to the claw body 4 such that the claw tip 45 of the claw body 4 protrudes into the chain tooth passage, and to apply force to the closing component 5 such that the closing part 52 is placed on the upper wing plate 21 (e.g., the mounting surface 91 described above). The force-applying component 6 may be a leaf spring mounted on the pull tab mounting cover 3. The leaf spring extends relatively long in the front-rear direction and has notches 66 at its front and rear ends. The riveting protrusion 3a of the pull tab mounting cover 3 is inserted into the notch 66 of the leaf spring and riveted, resulting in the leaf spring being mounted on the pull tab mounting cover 3. The lower surface of the upper plate 34 is a gently curved surface, allowing the leaf spring to undergo elastic deformation from a flat or substantially flat initial shape to a curved shape.

[0080] As an optional feature, the closing portion 52 of the closing member 5 has an upward protrusion 8 that protrudes toward the free end 32 of the pull tab mounting cover 3. Compared with the case where the upward protrusion 8 is not provided, the gap between the pull tab mounting cover 3 and the closing portion 52 is reduced, thereby preventing foreign objects from entering.

[0081] The upward protrusion 8 can be partially provided in the closure portion 52. Specifically, in the width direction of the pull head 1, the width of the upward protrusion 8 is narrower than the width of the closure portion 52, and / or in the moving direction of the pull head 1, the length of the upward protrusion 8 is shorter than the length of the closure portion 52. This increases the design freedom of the pull tab mounting cover 3 and / or the force-applying component 6. When the upward protrusion 8 is provided in the center of the width of the closure portion 5, it is possible to effectively suppress the entry of foreign objects using the smaller upward protrusion 8.

[0082] As an additional or alternative, the upward protrusion 8 can be formed to protrude at least at the end portion 59 of the closure 52 toward the free end 32 of the pull tab mounting cover 3. Furthermore, the end portion 59 of the closure portion 52 of the closure member 5, when the closure member 5 is in the first posture (e.g., in...) Figure 2 The posture shown or Figure 4 (In the posture shown) it is arranged adjacent to the pull tab inlet formed between the upper wing plate 21 and the free end 32 of the pull tab mounting cover 3. An upward protrusion 8 is arranged very close to the pull tab inlet to effectively suppress the intrusion of foreign objects.

[0083] As an addition or alternative, the upward protrusion 8 is provided away from the side of the closing portion 52 (e.g., the sides 53b and 57a described above) located on the side opposite to the end face 59a of the end portion 59, that is, it can be provided closer to the end face 59a than that side. This makes it easier to ensure a sufficient pivot angle for the closing member 5. Furthermore, the end face 59a of the end portion 59 faces the inlet for the pull tab.

[0084] Furthermore, the closure 52 includes: a first portion, the front-to-back width of which is defined by the end face 59a and the side face 53b; and a second portion, the front-to-back width of which is defined by the end face 59a and the side face 57a. The side face 57a is positioned behind the side face 53b to avoid interference with the upper arm 43 of the claw body 4. In this way, the pull tab 7 is prevented from falling off by the side face 53b. In this respect, it is advantageous for the side face 53b to be positioned in front of the side face 57a. However, it is also possible to arrange the side face 53b and the side face 57a in a manner that forms a common plane.

[0085] In some cases, the upward protrusion 8 includes: a rear inclined surface (first surface) 8p extending upward from the end surface 59a toward the apex or top 8r of the upward protrusion 8; and a front inclined surface (second surface) 8q extending obliquely downward from the apex or top 8r of the upward protrusion 8. The upward protrusion 8 may be a protrusion with a triangular shape whose profile is at least partially defined by the rear inclined surface 8p and the front inclined surface 8q. As an addition or alternative, the closure 52 may have an upper surface 52a that slopes downward toward the end surface 59a, on which the upward protrusion 8 is disposed. By tilting the upper surface 52a as described above, it is possible to facilitate ensuring a sufficient pivot angle for the closure 52. Alternatively, the angle θ formed by the upper surface 52a of the closure 52 and the front inclined surface 8q of the upward protrusion 8 is set to an obtuse angle (e.g., in the range of 110° to 170° (or 120° to 160°)).

[0086] When an upward protrusion 8 is provided in a configuration requiring a low height for the slider 1 (i.e., below a specified height), there is a possibility (especially when the slider 7 is mounted on the slider 1) that a sufficient pivot angle for the closing member 5 cannot be ensured. In view of this, a recess 9 can be formed in the upper plate 34 of the slider mounting cover 3, which, when the closing member 5 is in the second posture, at least partially accommodates the upward protrusion 8 of the end portion 59 of the closing member 52 (see reference). Figure 9 Because the upward protrusion 8 is accommodated in the recess 9, a sufficient pivot angle for the sealing member 5 can be ensured. More specifically, when the pull tab 7 is installed, a passage with sufficient vertical height is formed between the pull head body 2 and the sealing member 5. After the pull tab 7 is installed, the gap between the sealing member 5 and the pull tab mounting cover 3 is reduced, inhibiting the entry of foreign objects. Figure 9 As shown, the recess 9 can have a shape complementary to the upward protrusion 8 (e.g., a triangle defined by two inclined surfaces). When the supported portion 51 of the closing member 5 is gently supported by the support protrusion 86, the upward protrusion 8 will not obstruct the formation of the pull tab passage E2 (see reference). Figure 4 and Figure 5 ).

[0087] To prevent the upward protrusion 8 from interfering with the force-applying component 6, an opening or notch can be formed in the leaf spring used as the force-applying component 6. (e.g., a leaf spring...) Figure 7 The tab mounting cover 3 (as shown) can be mounted on the tab mounting cover 3 in such a way that it covers approximately the entire area of ​​the bottom surface of the cover groove 36 (the lower surface of the upper plate 34) of the tab mounting cover 3. By forming an opening or notch in the leaf spring, the upward protrusion 8 can reach the recess 9 of the tab mounting cover 3 through the opening or notch in the leaf spring. In the example shown, a portion of the opening or notch formed to mount the leaf spring to the tab mounting cover 3 can also be used to avoid interference with the upward protrusion 8. Furthermore, the protrusion (more specifically, the riveting protrusion 3a) provided on the inner side of the tab mounting cover 3 for fixing the leaf spring also helps to define the upper limit height of the third posture of the closing member 5. Figure 3 ).

[0088] In this embodiment, the closing member 5 is configured to assume a third posture simultaneously (in other words, together with it) as the claw body 4 is pressed by the pull tab 7 and pivots, causing the claw tip 45 to retract to the position of the claw hole 89. In the third posture, the closing portion 52 is positioned at a height lower than that of the closing portion 52 in the second posture, away from the upper wing plate 21 (e.g., its main surface 21z). In particular, when the closing member 5 is in the third posture, the protrusion 11 provided on one of the closing member 5 and the pull tab mounting cover 3 engages with the recess 12 provided on the other of the closing member 5 and the pull tab mounting cover 3, thereby restricting the displacement of the closing member 5 relative to the pull tab mounting cover 3 (e.g., in the front-back direction (pull head movement direction), or in the left-right direction (pull head width direction)). This helps to prevent unintended widening of the gap between the closing portion 52 and the upper wing plate 21.

[0089] To provide specific examples without limitation, such as Figures 14 to 15 As shown, when the pull tab 7 rotates, the following possibility exists: the closing component 5 is pressed forward by the pull tab rod 7j (more specifically, the straight rod 7e) and takes on a second posture. Figure 5 and Figure 6 Or a posture similar to the second posture. By using the protrusion 11 and the recess 12 to restrict the displacement of the closing member 5 as described above, the possibility of the closing member 5 taking the second posture is reduced. In addition, in the third posture, the closing part 52 is positioned further back than the closing part 52 in the second posture (i.e., positioned further away from the base end 31 of the pull tab mounting cover 3).

[0090] In some cases, the protrusion 11 is provided on the closure member 5, and the recess 12 is provided on the pull tab mounting cover 3. Preferably, the protrusion 11 is provided on the wing 58, and the recess 12 is provided on the lower end face of the outer peripheral wall 35 (e.g., the left wall 35m and the right wall 35n) of the pull tab mounting cover 3. By providing the protrusion 11 on the wing 58, the upward displacement and forward and backward displacement of the closure member 5 are restricted. The recess 12 can open on the inner surface and the lower surface of the outer peripheral wall 35 (e.g., the left wall 35m and the right wall 35n) of the pull tab mounting cover 3 (see reference). Figures 7 to 9 The recess 12 can be provided in the second part of the left wall 35m, and is provided in a manner close to the middle part of the left wall 35m. The same applies to the recess 12 provided in the right wall 35n. The outer peripheral wall 35 of the pull tab mounting cover 3 can be shaped to avoid interference with the protrusion 11 when the closed part 5 is in the second posture.

[0091] The protrusion 11 can be partially provided close to the rear surface 58a of the flap 58. This ensures the desired pivot angle of the closure member 5. Furthermore, the flap 58 includes: a front surface 58b (first side surface) facing the base end 31 of the pull tab mounting cover 3; and a rear surface 58a (second side surface) opposite to the front surface 58b. Preferably, the protrusion 11 has a smaller volume than the closure member 5, for example, being narrower than the flap 58 at least in the pull tab width direction. That is, in the width direction of the pull tab 1, the width of the protrusion 11 is narrower than the width of the flap 58. Additionally, if the protrusion 11 is combined with both the flap 58 (upper surface) and the closure portion 52 (side surface), the mechanical strength of the protrusion 11 is increased. The protrusion 11 and the recess 12 can have complementary shapes, but are not limited thereto.

[0092] based on Figure 1 As explained above, the assembly method of the zipper pull 1 is obvious to those skilled in the art. In the example, the force-applying component 6 is installed on the zipper pull mounting cover 3. The supported portion of the claw body 4 is engaged with the support protrusion 85 of the upper wing plate 21, and the claw body 4 is positioned on the zipper pull body 2. Similarly, the supported portion of the closing component 5 is engaged with the support protrusion 86 of the upper wing plate 21, and the closing component 5 is positioned on the zipper pull body 2. The zipper pull mounting cover 3 is installed on the zipper pull body 2, and a riveting process is performed as needed. With this setup, the assembly is completed in one step. Then, it is possible to... Figures 4 to 6 Install the pull tab 7 onto the pull head 1 (especially the pull tab mounting cover 3) as shown.

[0093] like Figure 13 As shown, a protrusion 11 can also be provided on the pull tab mounting cover 3 (e.g., its rear wall 35b), and a recess 12 can be provided on the closing member 5 (e.g., its closing portion 52). In this configuration, the same effect as the structure described above (within the scope of non-contradiction) can be obtained. Figure 13In one non-limiting example, an upward protrusion 8 is provided in the closed portion 52, and a recess 12 is formed on the top of the upward protrusion 8. The protrusion 11 of the pull tab mounting cover 3 is provided at the lower end of the protrusion 3a that protrudes downward from the inner surface of the pull tab mounting cover 3.

[0094] In the various configurations described above, the protrusion 11 and the recess 12 are positioned rearward compared to the support protrusions 85 and 86 of the upper flange 21, but they can also be positioned in front of the support protrusions 85 and 86. For the sake of simplicity, not all candidate positions of the protrusion 11 and the recess 12 are shown, but all are within the scope that can be immediately understood by those skilled in the art in accordance with the spirit of this disclosure.

[0095] Based on the above disclosure, those skilled in the art can make various modifications to the features and embodiments. Reference numerals incorporated in the claims are for reference only and should not be referred to for the purpose of limiting the interpretation of the claims.

Claims

1. A zipper puller, characterized in that, include: The main body of the zipper head (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); The pull tab mounting cover (3) includes: a base end (31) which is fixed to the pull head body (2); and a free end (32) which is positioned upward away from the upper wing plate (21), the pull tab mounting cover (3) being shaped to define a cover groove (36) extending between the base end (31) and the free end (32). The claw body (4), which is oscillatingly mounted on the upper wing plate (21) and at least partially housed in the pull tab mounting cover (3), has a claw tip (45) that is displaceable between a position retracted to a claw hole (89) penetrating the upper wing plate (21) and a position protruding toward the chain tooth passage of the pull head body (2). A closing component (5), at least partially housed within the pull tab mounting cover (3), includes: a supported portion (51) supported by a support protrusion (86) on the upper wing plate (21); and a closing portion (52) configured to define a receiving space (53a) for the pull tab (7) between the closing portion (52) and the supported portion (51), wherein, in a first position, the closing portion (52) contacts the upper wing plate (21) to close the pull tab with a passage (E2), and in a second position, the closing portion (52) is positioned upwards away from the upper wing plate (21) to release the closure of the pull tab with a passage (E2); and The force-applying component (6) is configured to apply force to the claw body (4) such that the claw tip (45) protrudes into the chain tooth passage, and to apply force to the closing component (5) such that the closing portion is placed on the upper wing plate (21). In this configuration, the closing component (5) is arranged to simultaneously assume a third posture when the claw body (4) is pressed by the pull tab (7) and pivots, causing the claw end (45) to move to a position retracted into the claw hole (89). In this third posture, the closing part (52) is positioned upwards away from the upper wing plate (21) at a height lower than that of the closing part (52) in the second posture. When the closed component (5) is in the third posture, the protrusion (11) provided on one of the closed component (5) and the pull tab mounting cover (3) engages with the recess (12) provided on the other of the closed component (5) and the pull tab mounting cover (3) to restrict the displacement of the closed component (5) relative to the pull tab mounting cover (3). When the closed component (5) is in the second posture, the protrusion (11) will not interfere with the component with the recess (12).

2. The zipper pull according to claim 1, characterized in that: The protrusion (11) is disposed on the closed component (5), and the recess (12) is disposed on the pull tab mounting cover (3).

3. The zipper pull according to claim 2, characterized in that: The closure (52) has a pair of flaps (58) protruding to both sides in the width direction of the pull head, and the protrusion (11) is provided on at least one of the pair of flaps (58).

4. The zipper pull according to claim 3, characterized in that: The wing (58) has a first side facing the base end (31) of the pull tab mounting cover (3) and a second side opposite to the first side, and the protrusion (11) is partially provided close to the second side.

5. The zipper pull according to claim 4, characterized in that: The protrusion (11) is combined with both the wing (58) and the closure (52).

6. The zipper pull according to claim 4, characterized in that: In the width direction of the pull head (1), the width of the protrusion (11) is narrower than the width of the wing (58).

7. The zipper pull according to claim 3, characterized in that: The recess (12) is provided on the lower end face of the outer peripheral wall (35) of the pull tab mounting cover (3).

8. The zipper pull according to claim 7, characterized in that: The recess (12) opens on the inner and lower surfaces of the outer peripheral wall (35) of the pull tab mounting cover (3).

9. The zipper pull according to claim 2, characterized in that: The outer peripheral wall (35) of the pull tab mounting cover (3) is shaped to avoid interference with the protrusion (11) when the closed part (5) is in the second posture.

10. The zipper pull according to claim 1 or 2, characterized in that: The claw body (4) has an upper arm and a lower arm (43, 44) for determining a receiving space (47) for receiving a pull tab (7), the upper arm (43) being adapted to be pressed downward by the force-applying member (6), and the claw end (45) being provided on the lower arm (44). The receiving space (47) of the claw body (4) and the receiving space (53a) of the closing component (5) are arranged adjacent to each other in the width direction of the pull head.

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