Invisible zipper

Abstract

This utility model provides an invisible zipper, including: a pair of first zipper teeth and a pair of second zipper teeth; a zipper pull; and a detachable insert disposed at the lower end of the first and second zipper teeth in the longitudinal direction. The zipper pull includes: a zipper pull body, comprising a back plate, a pair of left and right wall portions disposed on the outer left and right sides of the back plate and extending towards the surface, a pair of left and right flange portions extending from the surface of the left and right wall portions towards the inner left and right sides, a guide post disposed on the front side of the back plate and extending towards the surface, and a face plate extending rearward from the surface of the guide post; a zipper tab mounting portion disposed on the surface of the face plate of the zipper pull body; and a zipper tab mounted on the zipper tab mounting portion. Based on the friction between the zipper tab and the zipper tab mounting portion, the zipper tab can maintain its posture, at least in a folded position. The surface of the face plate with the zipper tab mounting portion is located closer to the surface than the surface of the insert.

Description

Technical Field

[0001] This utility model relates to an invisible zipper. Background Technology

[0002] Patent Document 1 discloses a zipper pull for an invisible zipper. In Patent Document 1, the zipper tab is connected to the main body of the zipper pull via a zipper tab mounting post.

[0003] Patent Document 2 discloses a zipper pull. In Patent Document 2, based on the friction between the pull tab and its mounting portion, the pull tab can maintain its position in any of the following postures: a folded position, an inverted position, or a tilted position between the folded and inverted positions. That is, the pull tab in Patent Document 2 is a so-called "holding-down" type pull tab, which adds a wobbling reduction function by applying appropriate resistance to the contact portion between the pull tab and the post of the zipper pull.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2007-54176

[0007] Patent Document 2: Japanese Patent Application Publication No. 2018-089450

[0008] In conventional zipper pulls used for non-concealed zippers, the pull tab is mounted on the front side of the zipper flap, and the insert is inserted into the tooth path on the back side of the zipper flap. Therefore, in such conventional zipper pulls, when the insert is inserted, the zipper flap is sandwiched between the insert and the pull tab, so the insert and pull tab do not contact each other. However, in zipper pulls used for concealed zippers, since there is no zipper flap like in conventional zipper pulls, there is a possibility that the insert and the pull tab of the zipper pull may interfere when the insert is inserted, especially if the pull tab is a downward-facing type. This limited displacement of the pull tab relative to the pull tab mounting portion makes it difficult to insert the insert and prevent contact, potentially resulting in poor insertability. Utility Model Content

[0009] This invention was made in view of the above-mentioned problems, and its purpose is to provide an invisible zipper with excellent insertability of the insert rod.

[0010] To solve the above problems, the present invention adopts the following structure.

[0011] (1) An invisible zipper, comprising:

[0012] A pair of first and second zipper teeth on the left and right sides;

[0013] A zipper pull, used for opening and closing the first zipper chain teeth and the second zipper chain teeth; and

[0014] A separation insert is provided at the lower end of the first zipper tooth strip and the second zipper tooth strip in the length direction;

[0015] In the invisible zipper,

[0016] The separate insert includes:

[0017] An insert bar, which is disposed on the inner edge of the first zipper tooth in the left-right direction; and

[0018] The socket is located on the inner edge of the second zipper tooth belt in the left-right direction and can be connected to or disconnected from the plug.

[0019] The slider includes:

[0020] The zipper pull body includes: a back plate; a pair of left and right walls disposed on the outer edges of the back plate in the left and right directions and extending towards the surface; a pair of left and right flanges extending from the surface of the left and right walls in the left and right directions in the inner direction; a guide post disposed on the front side of the back plate and extending towards the surface; and a panel extending from the surface of the guide post towards the rear.

[0021] A pull tab mounting portion is disposed on the surface of the face plate of the pull tab body; and

[0022] A pull tab is installed in the pull tab mounting part.

[0023] Based on the friction between the pull tab and the pull tab mounting part, the pull tab can maintain its posture at least in the fallen posture, and the surface of the panel on which the pull tab mounting part is provided is located on the side closer to the surface of the insert bar.

[0024] Utility Model Effect

[0025] According to this invention, a concealed zipper with excellent insertability of the insert rod can be provided. Attached Figure Description

[0026] Figure 1 This is a front view of the invisible zipper according to the first embodiment of this utility model, showing the connection between the base bar and the insert bar.

[0027] Figure 2 This is a partial schematic diagram of the back side of a concealed zipper, showing the coiled teeth in the engaged state.

[0028] Figure 3This is a schematic vertical cross-sectional view of an invisible zipper, showing the fixed state of the zipper teeth attached to the folded-back portion of the zipper tape.

[0029] Figure 4 This is a 3D view of the zipper pull from below.

[0030] Figure 5 This is a top-down view of the zipper puller.

[0031] Figure 6 This is a side view of the slider from the left.

[0032] Figure 7 This is a side view of the pull tab installed from the left side. The pull tab that is bent downwards is shown with a solid line, and the pull tab that is bent upwards and the pull tab that is upside down in the direction of the watch back are shown with double-dotted lines.

[0033] Figure 8 This is a side view of the modified example involving the pull head 10, viewed from the left.

[0034] Figure 9 yes Figure 1 The cross-sectional view of the separate insert on the dotted-dash line IX-IX shown.

[0035] Figure 10 It is a three-dimensional diagram showing the unconnected state of the plug and socket before they are connected.

[0036] Figure 11 This is a side view showing the unconnected state of the plug and socket before they are connected.

[0037] Figure 12 It is a perspective view showing the insertion of the plug into the socket with the pull head positioned at the bottom.

[0038] Figure 13 Observation from the side Figure 12 The main view.

[0039] Figure 14 Viewed from above Figure 12 Top view.

[0040] Figure 15 In the second embodiment, it is equivalent to Figure 1 The cross-sectional view of the separate insert at the position of the dotted line IX-IX shown.

[0041] Figure 16 This is a perspective view showing the non-connected state of the plug and socket before they are connected in the second embodiment.

[0042] Figure 17 This is a side view showing the unconnected state of the plug and socket before they are connected in the second embodiment.

[0043] Figure 18 This is a perspective view showing the state in the second embodiment where the plug is inserted into the socket with the pull head positioned at the lower end.

[0044] Figure 19 Observation from the side Figure 18 The main view.

[0045] Figure 20 Viewed from above Figure 18 Top view.

[0046] Figure 21 This is a perspective view of the pull head from below in the third embodiment.

[0047] Figure 22 This is a top view of the puller head as seen from above in the third embodiment.

[0048] Figure 23 This is a side view of the pull head from the left side in the third embodiment.

[0049] Figure 24 This is a front view of the slider from the front side in the fourth embodiment.

[0050] Explanation of reference numerals in the attached figures

[0051] 1. Invisible zipper 2a. First zipper tooth chain.

[0052] 2b Second zipper tooth 4a First zipper tooth

[0053] 4b Second zipper tooth 5 Boundary gap

[0054] 7a First fabric 7b Second fabric

[0055] 9 Separate insert 10 Pull head

[0056] 11 Main body of the pull handle 12 Upper opening

[0057] 13 Back panel 14 Bottom opening

[0058] 15 Wall portion 17 Flange portion

[0059] 19 guide column 20 dashboard

[0060] 20A Front 20B Back

[0061] 21 Pull-up tab mounting part 22 Claw part

[0062] 22a Opposing face 22b Opposite face

[0063] 23 Surface 23a Top

[0064] 23b Upper part 23c Lower part

[0065] 23d Side view 24 Side view

[0066] 25. Mounting surface; 26. Angle limiting protrusion (protrusion)

[0067] 30. Pull-up film; 31. Base end

[0068] 31a Left and right outer end; 32 Free end

[0069] 33 Shaft section 34 Rod section

[0070] 35 Grip section 36 Bending section

[0071] 40 Insert rod 41 Insert rod base

[0072] 41a Surface (surface of the insert) 41b Back side

[0073] 43 Insert rod part 45 Insert rod connecting part

[0074] 46 Projection 46a Projection surface

[0075] 46b Inclined surface 47 Notched portion

[0076] 47a Bottom surface 50 Socket

[0077] 50A socket body, 50B socket stick

[0078] 51 Containment Section 51a Base Plate

[0079] 51b Sidewall 51c Wall surface

[0080] 52 watch side cover, 52a back (facing side)

[0081] 53 Base of the seat rod, surface 53a

[0082] 53b Rear side 54 Seat rod part

[0083] 55 Socket connection part 56 Side window

[0084] 57 Recessed surface 57a

[0085] 57b Bottom surface 59 Insertion hole

[0086] 60a First zipper strap; 60b Second zipper strap

[0087] Side ends 61a, 61b, 62a, 62b, and turning sections 63a, 63b

[0088] 64a and 64b with main AX pivot shaft

[0089] B1 boundary CL centerline

[0090] CP center plane G1 guide groove

[0091] PL plane RT rotational torque

[0092] SA, SB gap Detailed Implementation

[0093] The following description, based on the accompanying drawings, details the various embodiments of the invisible zipper of this utility model.

[0094] Furthermore, in this instruction manual, "up and down direction" refers to the sliding direction of the zipper pull, the length direction of the zipper or zipper teeth, and the insertion / removal direction of the push bar relative to the socket. Within "up and down direction," the direction in which the zipper pull slides to engage the left and right zipper teeth is specifically designated as "up," and the direction in which the zipper pull slides to disengage the left and right zipper teeth is designated as "down." In the diagram, UP represents "up," and DN represents "down." "Up and down direction" is... Figure 1 The up and down directions.

[0095] "Left and right direction" refers to the direction in which a pair of zipper teeth are aligned side-by-side, perpendicular to the sliding direction of the zipper pull. In other words, it can be described as the width direction of the zipper, zipper teeth, zipper chain, zipper teeth, insert, and socket. In the diagram, L represents "left" and R represents "right." "Left and right direction" is... Figure 1 The left and right directions.

[0096] Furthermore, the "back direction" refers to the direction orthogonal to the up-down and left-right directions; it can also be described as the thickness direction of the zipper, zipper teeth, chain strap, chain teeth, insert, and socket. In the diagram, F represents the "face" and B represents the "back." The "back direction" is... Figure 1 The depth direction of the paper.

[0097] Hereinafter, various embodiments and features will be described 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 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 utility model, and have been simplified for ease of drawing. The features are not only effective for the concealed zipper disclosed in this application, but should be understood as general features applicable to other concealed zippers not disclosed in this specification.

[0098] (First Implementation)

[0099] Figure 1This is a front view of the concealed zipper according to the first embodiment of this utility model, showing the engagement of the base bar and the insert bar. Figure 1 As shown, the concealed zipper 1 is a long strip-shaped component extending vertically with a specified width, installed at the opening of clothing, bags, shoes, and other items, enabling the opening to be opened and closed. The surface of the concealed zipper 1 does not have first zipper teeth 4a and second zipper teeth 4b, resulting in high flatness. Therefore, it is possible to prevent the concealed zipper 1 from becoming visually noticeable when installed on an item.

[0100] The concealed zipper 1 includes: a pair of first zipper teeth 2a and second zipper teeth 2b; a zipper pull 10 for opening and closing the pair of zipper teeth 2a and 2b; and a separation insert 9 disposed at the lower end of the first zipper teeth 2a and the second zipper teeth 2b in the length direction (vertical direction).

[0101] Zipper toothed belts 2a and 2b each include: a pair of first zipper belts 60a and second zipper belts 60b; and a plurality of first zipper teeth 4a and second zipper teeth 4b, which are disposed on the inner edge of the left and right directions of the pair of zipper belts 60a and 60b respectively.

[0102] Typically, the first zipper tape 60a and the second zipper tape 60b are woven fabric, braided fabric, or a mixture thereof, extending in the same prescribed direction as the concealed zipper 1. Figure 2 This is a partial schematic diagram of the back side of a concealed zipper, showing the coiled teeth in the engaged state. Figure 3 This is a schematic vertical cross-sectional view of an invisible zipper, showing the fixed state of the zipper teeth attached to the folded-back portion of the zipper tape.

[0103] like Figure 2 and Figure 3 As shown, the first zipper tooth 4a and the second zipper tooth 4b are coil-shaped teeth (a spiral of monofilaments with engaging heads at predetermined intervals) in the example shown, but are not limited to this; they can also be resin or metal zipper tooth rows. Resin zipper teeth can be installed on the first zipper tape 60a and the second zipper tape 60b by injection molding or the like. Metal zipper teeth can be installed on the first zipper tape 60a and the second zipper tape 60b by riveting or the like.

[0104] The first zipper tape 60a has two side ends 61a and 62a, which are located at both ends in the width direction of the first zipper tape 60a and extend along the length direction of the first zipper tape 60a. A fold-back portion 63a between the two side ends 61a and 62a is bent along an imaginary line parallel to its length direction, and a main tape portion 64a is provided between the fold-back portion 63a and the side ends 62a. The width of the fold-back portion 63a is set to be sufficient for mounting the first zipper teeth 4a, and is therefore sufficiently small compared to the lateral width of the main tape portion 64a, typically less than one-third of it.

[0105] The boundary between the turning section 63a and the main belt section 64a can be determined based on whether it is located in the plane PL where the main belt section 64a is located (see reference). Figure 3 To distinguish them, for example, within. Figure 3 In this configuration, if the zipper tape 3 exceeds the boundary B1, it will extend in a direction away from the plane PL, thus allowing the reversal portion 63a and the main tape portion 64b to be distinguished based on the boundary B1. Furthermore, the reversal portion 63a includes a reversal end formed by the aforementioned reversal, which is opposite to the center plane CP containing the center line CL of the concealed zipper 1.

[0106] For the second zipper tape 60b, the same description applies by replacing the two side ends 61a and 62a with the two side ends 61b and 62b, replacing the fold-back part 63a with the fold-back part 63b, and replacing the main tape part 64a with the main tape part 64b.

[0107] The first zipper tooth 4a is installed to the fold-back portion 63a of the first zipper tape 60a, for example, by sewing, injection molding, riveting, etc. Similarly, the second zipper tooth 4b is installed to the fold-back portion 63b of the second zipper tape 60b, for example, by sewing, injection molding, riveting, etc. In the example shown, the first zipper tooth 4a and the second zipper tooth 4b are located further back than any of the main tape portions 64a, 64b and the fold-back portions 63a, 63b, but this is not a limitation.

[0108] The zipper pull 10 closes the zipper 1 by moving upwards (UP), engaging the first zipper tooth 4a and the second zipper tooth 4b. That is, the first zipper tooth 4a and the second zipper tooth 4b engage, and in the example coiled teeth shown in the figure, their engaging heads interlock. At this time, as... Figure 1As shown, a boundary line or boundary gap 5 extending in the vertical direction is formed between the folded-back portions 63a and 63b. Folded-back portions 63a and 63b and main tape portions 64a and 64b are arranged on both sides of the boundary line or boundary gap 5 (the same applies to the center line CL of the concealed zipper 1). Whether the folded-back portions 63a and 63b contact the center line CL of the concealed zipper 1 when the concealed zipper 1 is closed depends on the material (whether it is fuzzy) of the first zipper tape 60a and the second zipper tape 60b, and the degree or manner of folding. Generally, the folded-back portions 63a and 63b do not contact the center line CL of the concealed zipper 1, and a boundary gap 5 is formed between them. The first zipper tooth 4a and the second zipper tooth 4b can be visually identified from the outside using the boundary gap 5, but careful observation is required.

[0109] By moving the zipper pull 10 downwards (DN), the zipper 1 is opened, and the first zipper tooth 4a and the second zipper tooth 4b are in a non-engaged state. That is, the engagement between the first zipper tooth 4a and the second zipper tooth 4b is released.

[0110] Figure 4 This is a 3D view of the zipper pull from below. Figure 5 This is a top-down view of the zipper puller. Figure 6 This is a side view of the slider from the left. Figure 7 This is a side view of the pull tab installed from the left side. The pull tab that is bent downwards is shown with a solid line, and the pull tab that is bent upwards and the pull tab that is upside down in the direction of the watch back are shown with double-dotted lines.

[0111] like Figure 1 and Figures 4-7 As shown, the zipper pull 10 includes: a zipper pull body 11; a zipper tab mounting part 21 disposed on the zipper pull body 11; and a zipper tab 30 mounted on the zipper tab mounting part 21.

[0112] The zipper pull body 11 is configured to guide the first zipper tooth 4a and the second zipper tooth 4b, and during the guiding process, the first zipper tooth 4a and the second zipper tooth 4b can engage or disengage. A tab mounting portion 21 is provided on the surface of the zipper pull body 11, and more specifically on the surface 23 of the panel 20 (described later). In this embodiment, the tab mounting portion 21 is integrally formed with the panel 20 of the zipper pull body 11, but it is not limited thereto; the tab mounting portion 21 may also be mounted on the panel 20 as a component separate from the panel 20.

[0113] For example, both the slider body 11 and the pull tab mounting part 21 are made of metal, while the pull tab 30 is made of resin or elastomer. The pull tab 30 may also be made of a relatively softer material compared to the slider body 11 or the pull tab mounting part 21.

[0114] The zipper pull body 11 includes: a back plate 13, which is generally plate-shaped and extends approximately perpendicularly to the back of the zipper pull; a pair of left and right wall portions 15, 15, disposed on the outer edges of the back plate 13 in the left and right directions; a pair of left and right flange portions 17, 17, extending from the outer sides of the pair of wall portions 15, 15 in the left and right directions inward; a guide post 19, disposed at the center of the front side of the back plate 13 in the left and right directions and extending towards the front side; and a zipper pull 20, which protrudes rearward from the outer side of the guide post 19. A zipper pull mounting portion 21 is provided on the surface 23 of the zipper pull 20, which includes a pair of claw portions 22, 22. A Y-shaped dividing portion branching from the guide post 19 is provided at the center of the width direction of the surface of the back plate 13, thereby facilitating smooth movement of the left and right zipper teeth.

[0115] The dashboard 20 protrudes further downwards (DN) and outwards in the left and right directions compared to the guide post 19. The dashboard 20 includes a surface 23 serving as the dashboard side and a pair of side surfaces 24, 24 on the left and right sides.

[0116] The surface 23 of the panel 20 includes: a top 23a, which is generally planar in shape and is provided with a pull tab mounting portion 21; an upper portion 23b, which is connected to the upper part of the top 23a and is inclined toward the back side as it moves upward UP; a lower portion 23c, which is connected to the lower part of the top 23a and is inclined toward the back side as it moves downward DN; and a pair of side portions 23d, 23d, which are connected to the top 23a and the upper portion 23b and are inclined toward the back side as they move to the left and right sides.

[0117] like Figure 4 As shown, the pair of side panels 24, 24 gradually extend outwards in the left and right directions as they face upwards (UP). Therefore, the left and right dimensions of the panel 20 gradually increase as it faces upwards (UP). Furthermore, as... Figure 5 As shown, the pair of side panels 24, 24 gradually extend inward in the left and right directions as they face the surface F. Therefore, the left and right dimensions of the panel 20 gradually decrease as it faces the surface F.

[0118] like Figure 5 and Figure 6 As shown, the lower end of side 24 overlaps with the flange 17 in the vertical direction, but the upper end of side 24 is located above the flange 17. Therefore, the surface 23 connected to the upper end of side 24 and the pull tab mounting portion 21 provided on surface 23 are also located above the flange 17. A passage for the first zipper tape 60a and the second zipper tape 60b is provided between the pair of sides 24 and the pair of flanges 17. The pair of flanges 17 are inserted into the gap between the main tape portions 64a and 64b and the folding portions 63a and 63b formed by the above-mentioned folding, thereby ensuring that the zipper head 10 slides smoothly.

[0119] A pair of upper openings 12 are provided between the left and right wall portions 15, 15 and the guide post 19. These upper openings 12 are used for the entry and exit of the left and right first zipper teeth 4a and second zipper teeth 4b. The portion of the panel 20 that protrudes outward in the left and right directions compared to the guide post 19 and the left and right flange portions 17, 17 prevent the first zipper teeth 4a and second zipper teeth 4b from displacing towards the surface. A lower opening 14 is provided at the lower end of the zipper head body portion 11 for the left and right first zipper teeth 4a and second zipper teeth 4b to pass through in the engaged state. Furthermore, when the zipper head 10 is at its lowest DN position, the seat bar 50B of the socket 50 is inserted into the zipper head 10 via this lower opening 14. Thus, displacement of the zipper head 10 can be suppressed when the insert bar 40 is inserted into the zipper head 10 via the upper opening 12.

[0120] A Y-shaped zipper tooth passage is constructed by a back plate 13, a pair of wall portions 15, 15, a pair of flange portions 17, 17, a guide post 19, and a front plate 20. Therefore, by displacing the zipper head 10 downwards (DN), the guide post 19 of the zipper head 10 disengages the engaged pair of first zipper teeth 4a and second zipper teeth 4b, thereby separating the left and right pairs of first zipper tooth chains 2a and second zipper tooth chains 2b. By displacing the zipper head 10 upwards (UP), the disengaged pair of first zipper teeth 4a and second zipper teeth 4b pass through the Y-shaped zipper tooth passage and, in the process, become engaged.

[0121] like Figures 4-7 As shown, the pull tab mounting part 21 includes: a pair of claws 22, 22 that hold the shaft part 33 of the pull tab 30; and a mounting surface 25 disposed between the pair of claws 22, 22.

[0122] A pair of claws 22, 22 are arranged facing each other in the vertical direction on the surface 23 of the dial plate 20, clamping the shaft portion 33 of the pull tab 30 from the vertical direction. A gap is provided between the pair of claws 22, 22, which decreases as it moves away from the surface 23 of the dial plate 20 toward the dial side.

[0123] The mounting surface 25 is formed by the portion between a pair of claw portions 22, 22 in the top 23a of the surface 23 of the panel 20. The shaft portion 33 is mounted on this mounting surface 25. The mounting surface 25 is a generally flat surface.

[0124] Each claw portion 22 includes: an opposing surface 22a, which faces another claw portion 22; and an opposing surface 22b, located on the opposite side of the opposing surface 22a. The opposing surface 22a of the upper UP claw portion 22 rises from the upper end of the mounting surface 25 towards the surface, and as it rises towards the surface, it approaches the lower DN claw portion 22. The opposing surface 22a of the lower DN claw portion 22 rises from the lower end of the mounting surface 25 towards the surface, and as it rises towards the surface, it approaches the upper UP claw portion 22. That is, the opposing surfaces 22a, 22a of a pair of claw portions 22, 22 approach each other as they move away from the surface 23 of the panel 20. Figure 7 As shown, the shaft portion 33 of the pull tab 30 is supported at three points by three surfaces: the mounting surface 25, the opposing surfaces 22a of the upper UP claw portion 22, and the opposing surfaces 22a of the lower DN claw portion 22. Therefore, when the pull tab 30 rotates around the shaft portion 33, friction is generated between the shaft portion 33, the mounting surface 25, and the pair of claw portions 22.

[0125] After the shaft portion 33 of the pull tab 30 is placed on the mounting surface 25, a pair of claw portions 22, 22 are pressed together in a direction that brings them closer to each other, thereby forming the shape shown in the figure. The opposing surfaces 22a of the upper UP claw portion 22 and the opposing surfaces 22a of the lower DN claw portion 22 are arranged in a parallel manner before the claw portions 22 are pressed together, but after the claw portions 22 are pressed together, they are arranged in a non-parallel manner as shown in the figure.

[0126] The upper UP claw portion 22 has a smoothly curved surface between the opposing surface 22a and the mounting surface 25, and the lower DN claw portion 22 has a smoothly curved surface between the opposing surface 22a and the mounting surface 25, with the aforementioned curved surfaces arranged facing each other.

[0127] The thickness of each claw portion 22 is defined between its facing surface 22a and its opposite surface 22b. The thickness of the claw portion 22 decreases on its tip side (surface F), as shown below. Figure 6 As schematically shown, the tip of the claw 22 has rounded corners when viewed from the left and right directions.

[0128] The upper UP claw portion 22 warps downward DN as it extends from the surface 23 of the dial plate 20 toward the surface F. The lower DN claw portion 22 warps upward UP as it extends from the surface 23 of the dial plate 20 toward the surface F. Thus, the shaft portion 33 of the pull tab 30 is supported by the shaft between the pair of claw portions 22. The shaft portion 33 of the pull tab 30 is prevented from displacing in a direction away from the pull tab body 11 (e.g., displacing toward the surface, displacing upward, and displacing downward) by the pair of claw portions 22, 22.

[0129] like Figure 1 and Figure 7As shown, the pull tab 30 is an elongated component, including: a base end 31 located on one side of the pull tab mounting portion 21; and a free end 32 located on the side opposite to the base end 31 and on the side held by the user.

[0130] The pull tab 30 includes: a shaft portion 33 disposed on the base end 31 side of the pull tab 30 and supported by the pull tab mounting portion 21; a pair of rod portions 34, 34 extending from both ends of the shaft portion 33 in the left and right directions toward the free end 32 side; and a grip portion 35 connected to the free end 32 side of the pair of rod portions 34, 34.

[0131] The end of the shaft portion 33 forms the base end 31 of the pull tab 30. The shaft portion 33 is a generally cylindrical shape extending in the left-right direction. The shaft portion 33 is elastically deformed by being pressed by the opposing surfaces 22a, 22a of the pair of claw portions 22, 22 and the mounting surface 25. Therefore, when the pull tab 30 rotates about the shaft portion 33, friction is generated between the shaft portion 33 and the pair of claw portions 22, 22 and the mounting surface 25.

[0132] A pair of rods 34, 34 are connected to the left and right ends of the shaft 33. The left and right rods 34, 34 extend away from the base end 31 or the shaft 33.

[0133] The pull tab 30 has an opening formed by a shaft portion 33, a pair of left and right rod portions 34, 34, and a grip portion 35. The claw portion 22 passes through this opening. When the pull tab 30 rotates, the claw portion 22, after passing through the opening, comes into contact with the shaft portion 33, the pair of left and right rod portions 34, 34, and the grip portion 35, generating friction.

[0134] The grip portion 35 is a plate portion arranged at an angle relative to the direction in which the pair of rods 34, 34 extend. That is, a bend 36 is provided between the free end 32 and the pair of rods 34, 34. The bend 36 can be bent at least at one location between the base end 31 of the pull tab 30 and the free end 32, and its location is not limited. In the illustrated example, the bend 36 is located closer to the base end 31 than the free end 32. The degree of bending produced by the bend 36 is arbitrary. In some embodiments, the grip portion 35 is connected to the pair of rods 34 at an angle within the range of 10° to 60°.

[0135] The grip 35 is held by the user to move the pull tab 10 vertically. To move the pull tab 10 upward (UP), the user grips the grip 35, causing the pull tab 30 to be in the opposite upward (UP) position. To move the pull tab 10 downward (DN), the user grips the grip 35, causing the pull tab 30 to be in the forward downward (DN) position.

[0136] In the folded state, the lever 34 of the pull tab 30 extends vertically. In the inverted state, the lever 34 of the pull tab 30 extends horizontally along the back of the tab. In the folded state, the lever 34 of the pull tab 30 is horizontally positioned on the slider body 11, forming a substantially horizontal posture relative to the surface of the slider body 11, or forming an angle, for example, less than 30°, based on this horizontal posture. In the inverted state, the lever 34 of the pull tab 30 is upright on the slider body 11, forming a substantially vertical posture relative to the surface of the slider body 11, or forming an angle, for example, less than 30°, based on this vertical posture.

[0137] Because friction occurs between the pull tab 30 and the pull tab mounting part 21, the pull tab 30 can maintain its posture in any of the following postures: lying down, standing up, or tilting posture between lying down and standing up. Figure 7 In the diagram, the pull tab 30, which is bent downwards (DN), is shown in solid lines, while the pull tab upright in the direction of the watch back and the pull tab bent upwards (UP) are shown in double-dotted lines. The pull tab 30 can maintain its posture in both bent and upright positions through friction with the pull tab mounting part 21. Furthermore, although... Figure 7 Not shown, but in the downward tilting posture between the downward (DN) and inverted posture in the direction of the back of the watch, and in the upward tilting posture between the upward (UP) and inverted posture in the direction of the back of the watch, the pull tab 30 can also maintain its posture. That is, the pull tab 30 can maintain any posture. In addition, in this embodiment, based on the friction between the pull tab 30 and the pull tab mounting part 21, the pull tab 30 can maintain its posture in any of the following postures: the downward posture, the inverted posture, and the tilting posture between the downward and inverted postures. However, it is not limited to this structure. The pull tab 30 does not necessarily need to maintain its posture in the inverted or tilting postures, but it is sufficient that it can maintain its posture at least in the downward posture.

[0138] As described above, the pull tab 30 has a bent portion 36, which is formed between the base end 31 and the free end 32. Furthermore, as... Figure 7 As shown, compared to the forward position where the pull tab 30 is bent downwards (DN), in the reverse position where the pull tab 30 is bent upwards (UP), the portion of the pull tab 30 from the curved portion 36 to the free end 32 (the gripping portion 35 in this embodiment) is more inclined towards the surface. Therefore, in the reverse position where the pull tab 30 is bent upwards (UP), the portion from the curved portion 36 to the free end 32 is inclined towards the surface, creating a larger gap between the free end 32 of the pull tab 30 and the fabric, thus making it easier for the pull tab 30 to return to the forward position where it is bent downwards (DN). Furthermore, in the reverse position where the pull tab 30 is bent upwards (UP), the gap between the pull tab 30 and the fabric prevents damage to the fabric due to friction with the pull tab 30.

[0139] Figure 8 This is a side view of the modified example involving the slider 10, viewed from the left. (See attached image.) Figure 8 As shown, an angle-limiting protrusion 26 protruding towards the surface can also be provided on the surface 23 of the cover plate 20 of the zipper pull body 11. In the example shown, the angle-limiting protrusion 26 is provided at the top 23a of the surface 23, but it can also be provided at the bottom 23c. The angle-limiting protrusion 26 limits the bending angle of the zipper pull 30 by abutting against the zipper pull 30 when it bends downwards (DN). For example, the shape of the angle-limiting protrusion 26 can be set as shown in the example, such that in the forward position where the zipper pull 30 bends downwards (DN), the bending angle of the grip portion 35 is approximately parallel to the horizontal direction perpendicular to the back of the fabric or faces towards the surface compared to the horizontal direction. By setting the bending angle of the grip portion 35 in the forward position as described above, a sufficient gap can be provided between the zipper pull 30 and the fabric in the forward position.

[0140] The pull tab 30 has the curved portion 36 as described above. Therefore, in the forward position where the pull tab 30 is bent downwards (DN), compared to the reverse position where the pull tab 30 is bent upwards (UP), the pull tab 30 is more inclined towards the back side, making it easier for the pull tab 30 to come into contact with the fabric. In this case, the operability of the pull tab 30 deteriorates, and there is also a possibility of damaging the fabric due to friction with the pull tab 30. However, in this modified example, since an angle-limiting protrusion 26 is provided to limit the bending angle of the pull tab 30 in the forward position, a gap can be provided between the pull tab 30 and the fabric, preventing the problems described above. In addition, it is also easier for the user to hold the pull tab 30, which is therefore preferable.

[0141] like Figure 1 As shown, the separating insert 9 includes: a pin 40 disposed on the inner left-right side edge of the first zipper tooth 2a; and a socket 50 disposed on the inner left-right side edge of the second zipper tooth 2b, capable of connecting to and disconnecting from the pin 40. The pin 40 and the socket 50 are fixed to the inner left-right side edges of the first zipper tooth 60a and the second zipper tooth 60b respectively, adjacent to the lower DN of the first zipper tooth 4a and the second zipper tooth 4b. The pin 40 and the socket 50 are typically made of resin and manufactured by injection molding, but are not limited to this and may also be made of metal. In particular, the socket 50 is not limited to being composed of a single component, but may also be assembled from two components.

[0142] Figure 9 yes Figure 1 The cross-sectional view of the separate insert on the dotted-dash line IX-IX shown. Figure 10 It is a three-dimensional diagram showing the unconnected state of the plug and socket before they are connected. Figure 11This is a side view showing the unconnected state of the plug and socket before they are engaged. For example... Figure 10 and Figure 11 As indicated by the arrow, the plug 40 can be inserted into the socket 50 with the downward-facing DN.

[0143] like Figures 9-11 As shown, the insert 40 includes: an insert base 41, which is fixed to the back side of the main part 64a of at least the first zipper tape 60a; an insert rod part 43, which is fixed to the folded-back part 63a of the first zipper tape 60a and extends in the vertical direction at a position closer to the back side than the insert base 41; and an insert connecting part 45, which connects the two in such a way that a guide groove G1 is formed between the insert base 41 and the insert rod part 43.

[0144] The base 41 of the insert includes: a surface 41a, which is located in the plane PL (refer to...) Figure 3 The flat wing portion of the insert 40 is preferably positioned at a predetermined height relative to the surface of the first zipper tape 60a (more specifically, the surface of the main tape portion 64a) facing outwards; and the back surface 41b is positioned at a predetermined height relative to the back surface of the first zipper tape 60a (more specifically, the back surface of the main tape portion 64a) facing outwards. The thickness of the insert base 41 in the outwards / backwards direction is determined by the relationship between the surface 41a and the back surface 41b. The surface 41a of the insert base 41 can also be considered the surface of the insert 40.

[0145] The insert rod portion 43 is positioned offset towards the back side in the front-back direction relative to the plane PL on which the insert rod base portion 41 is disposed. This is because the insert rod 40 is fixed within the area of ​​the main portion 64a and the fold-back portion 63a covering the first zipper tape 60a. Furthermore, the insert rod portions 43 can be formed to include a core cord disposed in the fold-back portion 63a. This improves the mounting strength of the insert rod 40 relative to the zipper tape 3. The left-right dimension of the insert rod portion 43 is smaller than the left-right dimension of the insert rod base portion 41.

[0146] The insert rod connecting portion 45 connects the inner ends of the insert rod base portion 41 in the left-right direction and the inner ends of the insert rod portion 43 in the left-right direction in the back-side direction. A guide groove G1 is formed on the outer side of the insert rod connecting portion 45 in the left-right direction and between the insert rod base portion 41 and the insert rod portion 43, and the flange portion 17 of the pull head 10 can be inserted into the guide groove G1.

[0147] like Figure 1 and Figures 9-11 As shown, the socket 50 includes: a socket body 50A located on the center line CL of the concealed zipper and having a prong hole 59 for inserting and removing the prong 40; and a base bar 50B integrally formed with the socket body 50A and located on the side of the second zipper tape 60b (right side R) closer to the center line CL.

[0148] The socket body 50A includes: a receiving portion 51 having a prong hole 59 formed on its surface; and a surface cover 52 that at least partially covers the prong portion 43 of the prong 40 from its surface when the prong portion 43 is inserted and received in the prong hole 59. That is, the socket body 50A includes a receiving portion 51 disposed on the back side and a surface cover 52 disposed on the front side.

[0149] The receiving portion 51 and the watch side cover 52 are generally arranged facing each other in the direction of the watch back, thereby forming a stud hole 59 between the receiving portion 51 and the watch side cover 52, which at least partially accommodates the stud 40 (particularly its lower end or lower half).

[0150] The receiving section 51 includes: a base plate 51a providing the bottom surface of the aforementioned insertion hole 59; a side wall 51b rising from the base plate 51a toward the surface F on the side further away from the second zipper tape 60b (left side L); and a wall surface 51c rising from the bottom surface of the insertion hole 59 on the side closer to the second zipper tape 60b, and opposite the left-right inner wall surface of the side wall 51b. The left-right width of the insertion hole 59 is defined between the left-right inner wall surface of the side wall 51b and the wall surface 51c.

[0151] The watch side cover 52 faces the base plate 51a and side wall 51b of the receiving portion 51 in the watch back direction. A side window 56 is formed between the watch side cover 52 and the side wall 51b. The side window 56 extends vertically, has a bottom surface at the lower DN, and an open end at the upper UP. The base 41 (e.g., lower end or lower half) of the insert 40 is inserted into the side window 56. The side window 56 can be omitted, but in this case, the socket body 50A may become larger. Furthermore, the wall surface 51c of the receiving portion 51 extends towards the watch side until it connects with the watch side cover 52.

[0152] The base bar 50B is connected to the socket body 50A and protrudes upwards (UP) compared to the socket body 50A. The base bar 50B includes: a base bar portion 53, which is fixed to the back face of the main portion 64b of the second zipper tape 60b; a base bar portion 54, which is fixed to the folded-back portion 63b of the second zipper tape 60b and extends vertically at a position more towards the back face than the base bar portion 53; and a socket body connecting portion 55, which connects the base bar portion 53 and the base bar portion 54 in the back face direction by forming a guide groove G2 between them. Any one or more of the base bar portion 53, the base bar portion 54, and the socket body connecting portion 55 can be connected to the socket body 50A.

[0153] The base 53 of the base rod, like the base 41 of the insertion rod, includes a surface 53a, which is located in the plane PL (see reference). Figure 3The flat wing portion of the zipper tape 60b is preferably positioned at a predetermined height relative to the surface of the second zipper tape 60b (more specifically, the surface of the main tape portion 64b); and the back surface 53b is positioned at a predetermined height from the back surface of the second zipper tape 60b (more specifically, the surface of the main tape portion 64b).

[0154] The base rod portion 54 is positioned such that it is biased toward the back side in the face-back direction relative to the plane PL on which the base rod portion 53 is disposed.

[0155] The face cover 52 of the socket body 50A is joined to the surface 53a of the base portion 53 of the base rod. Therefore, the face cover 52 is positioned closer to the face side than the base rod 53, and is located in a plane on a different side than the face side compared to the face plane PL. The base plate 51a of the receiving portion 51 of the socket body 50A is joined to the base rod portion 54. Therefore, the receiving portion 51 is positioned further back than the base rod portion 54. With this configuration, sufficient space height can be ensured in the insertion hole 59 between the base plate 51a of the receiving portion 51 and the face cover 52 in the face-back direction.

[0156] Typically, the connection between the plug 40 and the socket 50 is as follows: Figure 1 As shown, the lower end or lower half of the plug 40 is housed in the socket body 50A of the socket 50. The upper end or upper half of the plug 40 is not housed in the socket body 50A, but is located above the socket body 50A.

[0157] Figure 12 It is a perspective view showing the insertion of the plug into the socket with the pull tab positioned at the bottom. Figure 13 Observation from the side Figure 12 The main view. Figure 14 Viewed from above Figure 12 Top view.

[0158] like Figures 12-14 As shown, when assembling the plug 40 and the socket 50, firstly, the pull head 10 is moved downwards by DN until it is adjacent to the socket body 50A, and the base rod portion 54 is inserted into the pull head 10 via the lower opening 14 on the right side. Additionally, the flange portion 17 on the right side R is inserted into the guide groove G2 between the base rod base 53 and the base rod portion 54.

[0159] Next, using the upper opening 12 on the left side of the zipper 10, insert the rod portion 43 into the zipper 10. Insert the rod connecting portion 45 between the flange portion 17 on the left side L of the zipper 10 and the panel 20 in the left-right direction. Furthermore, insert the flange portion 17 on the left side L into the guide groove G1 between the rod portion 43 and the rod base 41. When the rod 40 is further inserted downwards DN, the rod 40 is inserted into the rod hole 59 of the socket 50.

[0160] Here, as Figure 14 As shown, with the insert rod portion 43 inserted into the pull head 10, the surface 23 of the dial plate 20, where the pull tab mounting portion 21 is provided, is located on the outer side of the surface of the insert rod 40. More specifically, the top 23a of the surface 23 of the dial plate 20, where the pull tab mounting portion 21 is provided, is located on the outer side of the surface of the insert rod base portion 41 that constitutes the surface of the insert rod 40.

[0161] Therefore, the pull tab 30 (more specifically, the base end 31 of the pull tab 30) installed in the pull tab mounting part 21 is also located on the surface side of the surface of the plug 40 (the surface 41a of the plug base 41). Therefore, it is possible to prevent the plug 40 from contacting the pull tab 30 when the plug 40 is inserted into the socket 50 by means of the pull head 10.

[0162] Furthermore, the pull tab 30 in this embodiment is a so-called "holding-down" type pull tab that can maintain its posture. Therefore, the pull tab 30 is difficult to displace relative to the pull tab mounting portion 21, resulting in low degrees of freedom. Consequently, when inserting the insert rod 40, it is difficult to displace the pull tab 30 to prevent the insert rod 40 from contacting the pull tab 30, potentially leading to poor insertion performance of the insert rod 40. However, in this embodiment, the relative positional relationship is set such that even if the pull tab 30 does not displace, it will not interfere with the insert rod 40, resulting in excellent insertion performance of the insert rod 40.

[0163] As described above, the surface 23 of the panel 20, where the pull tab mounting portion 21 is provided, is located on the outermost side of the surface of the insert rod 40. Therefore, the shaft portion 33 of the pull tab 30 is located on the outermost side of the surface of the insert rod 40. Thus, interference between the shaft portion 33 of the pull tab 30, which is the part closest to the insert rod 40, and the insert rod 40 can be reliably prevented.

[0164] In addition, such as Figure 12 and Figure 14 As shown, the outer ends 31a and 31a of the base end 31 of the pull tab 30 in the left and right directions are inclined surfaces that slope towards the free end 32 as they move outward in the left and right directions. In the example shown, the outer ends 31a in the left and right directions are smooth curved surfaces, but their shape is not limited; for example, they can also be conical surfaces.

[0165] In this way, the outer ends 31a and 31a of the base end 31 of the pull tab 30, which is the part closest to the insertion rod 40, are inclined surfaces, thus preventing interference with the pull tab 30 when the insertion rod 40 is inserted.

[0166] (Second Implementation)

[0167] Figure 15 In the second embodiment, it is equivalent to Figure 1 The cross-sectional view of the separate insert at the position of the dotted line IX-IX shown. Figure 16 This is a perspective view showing the non-connected state of the plug and socket before they are connected in the second embodiment. Figure 17 This is a side view showing the unconnected state of the plug and socket before they are connected in the second embodiment.

[0168] like Figures 15-17 As shown, in the second embodiment, a protrusion 46 protruding towards the surface is provided on the surface of the insertion rod 40 (the surface 41a of the insertion rod base 41).

[0169] In the case where the insert 40 has a protrusion 46 as in this embodiment, the flatness of the surface of the concealed zipper 1 is reduced. Therefore, it is preferable that the protrusion 46 is formed at a low position. For example, the maximum height of the protrusion 46 relative to the surface 41a of the insert base 41 can be less than 1 / 2 or less than 1 / 3 of the maximum height of the insert rod portion 43 relative to the back surface 41b of the insert base 41. Furthermore, by forming the protrusion 46 in the insert base 41, it is also advantageous to improve the mechanical strength of the insert 40.

[0170] A protrusion 46 is provided at the inner end (right side R) of the surface 41a of the base of the insert rod in the left-right direction. An inclined surface 46b is formed at the inner end (right side end) of the protrusion surface 46a, which is the surface of the protrusion 46. The inclined surface 46b is inclined toward the back side as it moves toward the inner side (right side R) in the left-right direction. In this embodiment, the inclined surface 46b is a conical surface, but it is not limited to this shape. For example, it may also be a curved surface.

[0171] A notch 47 is formed by cutting off a portion of the protrusion 46 along its entire length (i.e., along its vertical dimension) at its inner left-right end (right side end). The notch 47 includes a bottom surface 47a on its back side and a wall surface 47b facing the left-right direction. The outer left-right end (left side end) of the bottom surface 47a is connected to the wall surface 47b, and the outer surface end of the wall surface 47b is connected to the inclined surface 46b of the protrusion surface 46a. The notch 47 is formed not only to the protrusion 46 but also to a position further back than the surface 41a of the insert base 41. Therefore, the bottom surface 47a on the back side of the notch 47 is located further back than the surface of the insert 40 (the surface 41a of the insert base 41). However, the bottom surface 47a of the notch 47 may be at the same position as the surface of the insert 40 (the surface 41a of the insert base 41), or it may be located on the side closer to the surface of the insert 40 (the surface 41a of the insert base 41).

[0172] By providing the inclined surface 46b and the notch 47 as described above, interference between the protrusion 46 and the pull tab 30 can be prevented when the insert rod 40 is inserted. In particular, by positioning the notch 47 on the back side of the surface of the insert rod 40 (the surface 41a of the insert rod base 41), interference between the insert rod 40 and the pull tab 30 can be further prevented.

[0173] The socket 50's insertion hole 59 is formed by the surface of the base plate 51a, the inner side surfaces of the side wall 51b in the left and right directions, the wall surface 51c, and the back surface 52a of the cover 52. Here, in the inner surface forming the insertion hole 59, a surface recess 57 is provided on the facing surface that faces the surface of the insertion rod 40 (the surface 41a of the insertion rod base 41), i.e., the back surface 52a of the cover 52, which is recessed towards the surface.

[0174] The surface recess 57 is located on the inner side (right side R) of the side wall 51b in the left-right direction and faces the base plate 51a in the back-side direction. The shape, size, and arrangement of the surface recess 57 are set in such a way that it can accommodate the protrusion 46 of the insert 40.

[0175] The surface recess 57 has a limiting surface 57a that prevents the protrusion 46 from displacing away from the second zipper tape 60b (left side L) after the insertion of the insert rod portion 43 relative to the insert rod hole 59 is completed. A gap may also exist between the limiting surface 57a and the protrusion 46 in the left-right direction. The limiting surface 57a is the side surface constituting the outer left-right direction (left side L) of the surface recess 57, facing the protrusion 46 in the left-right direction.

[0176] By providing the limiting surface 57a, even when the first zipper tape 60a and the second zipper tape 60b are pulled laterally to the side away from each other in the left-right direction, displacement can be prevented by the protrusion 46 abutting against the limiting surface 57a, thus suppressing the generation of rotational torque RT in the insert rod portion 43 (see reference). Figure 15 Furthermore, it can effectively avoid or suppress deformation and / or (overall or partial) damage to the insertion rod 40. The protrusion 46 can also partially or entirely abut against the limiting surface 57a after the insertion of the insertion rod portion 43 relative to the insertion rod hole 59 is complete.

[0177] Preferably, both the protrusion 46 and the limiting surface 57a extend in a long strip shape in the vertical direction (in this case, the protrusion 46 is a raised strip) to ensure sufficient contact between them. As shown in the example, the length of the protrusion 46 in the vertical direction can be the same as the length of the insert rod portion 43 in the vertical direction, but is not limited to this. The cross-sectional shape of the protrusion 46 can be any shape such as rectangular, triangular, semi-circular, or semi-elliptic. The limiting surface 57a is not limited to a flat surface located in a plane orthogonal to the width direction, but can also be an inclined surface tilted at any angle relative to that plane. In addition, the limiting surface 57a can also be a rough surface with a specified surface roughness.

[0178] Figure 18 This is a perspective view showing the state in the second embodiment where the plug is inserted into the socket with the pull head positioned at the lower end. Figure 19 Observation from the side Figure 18 The main view. Figure 20 Viewed from above Figure 18 Top view.

[0179] In the second embodiment, similar to the first embodiment, when combining the plug 40 and the socket 50, the pull head 10 is first moved downward DN until it is adjacent to the socket 50, and then the plug 40 is inserted into the socket 50 by means of the pull head 10.

[0180] In this embodiment, similar to the first embodiment, the surface 23 of the panel 20 where the pull tab mounting portion 21 is provided is located on the outer side of the surface of the insert 40. More specifically, the top 23a of the surface 23 of the panel 20 where the pull tab mounting portion 21 is provided is located on the outer side of the surface 41a of the insert base 41 constituting the surface of the insert 40. Therefore, it is possible to prevent the insert 40 from contacting the pull tab 30 when the insert 40 is inserted into the socket 50 by means of the pull head 10.

[0181] In addition, in such Figure 18 and Figure 20 In the inverted state shown, the base 31 of the pull tab 30 is positioned on the back side of the bottom surface 57b of the recess 57 on the surface of the insertion hole 59, preferably on the back side of the protruding surface 46a of the insertion rod 40. By positioning the base 31 of the pull tab 30 on the back side of either the bottom surface 57b or the protruding surface 46a of the recess 57 on the surface of the insertion hole 59, the pull tab 30 is positioned as far back as possible, preventing rotational torque from being generated in the pull head 10 when the user pulls the pull tab 30, thereby improving the sliding performance of the pull head 10. This prevents interference between the insertion rod 40 and the pull tab 30 when the insertion rod 40 is inserted, and also improves the sliding performance of the pull head 10.

[0182] (Third Implementation)

[0183] Figure 21 This is a perspective view of the pull head from below in the third embodiment. Figure 22 This is a top view of the puller head as seen from above in the third embodiment. Figure 23 This is a side view of the slider from the left side in the third embodiment. Figure 22 In the image, the first zipper tooth 4a and the second zipper tooth 4b, the first zipper tape 60a and the second zipper tape 60b, and the first fabric 7a and the second fabric 7b sewn onto the surfaces of the first zipper tape 60a and the second zipper tape 60b are shown with dashed lines.

[0184] like Figures 21-23 As shown, the main difference between the slider 10 of the third embodiment and the embodiments described above lies in the structure of the dial plate 20. In the embodiments described above, the left-right dimension of the dial plate 20 is larger than the left-right dimension of the pair of claw portions 22, 22 constituting the slider mounting portion 21. In contrast, in this embodiment, the dial plate 20 includes: a dial portion 20A located on the dial side, having a left-right dimension approximately the same as the pair of claw portions 22, 22; and a back portion 20B connected to the back end of the dial portion 20A, protruding left-right compared to the dial portion 20A.

[0185] The left-right dimension of the back 20B is approximately the same as the left-right dimension of the face plate 20 of the slider 10 in the first and second embodiments. In contrast, the left-right dimension of the face portion 20A is smaller than the left-right dimension of the face plate 20 of the slider 10 in the first and second embodiments. That is, in this embodiment, compared with the first and second embodiments, the left and right sides of the face portion 20 are cut thinner. Moreover, the left-right dimensions of the face portion 20A and the claw portion 22 are approximately the same, and their left and right sides are smoothly connected without steps, thus presenting a very beautiful and excellent appearance.

[0186] In addition, such as Figure 22 As shown, the left-right dimension of the surface portion 20A is smaller compared to the first and second embodiments, thus ensuring sufficient clearance between it and the first zipper tape 60a and the second zipper tape 60b, or between the surface portion 20A and the first fabric 7a and the second fabric 7b. Therefore, the friction between the zipper pull 10 and the first zipper tape 60a and the second zipper tape 60b, and the first fabric 7a and the second fabric 7b is reduced, improving the sliding performance of the zipper pull 10.

[0187] The surface 23 includes a top 23a, an upper portion 23b, and a lower portion 23c, which is the same as in the embodiment described above. However, the upper portion 23b is tapered, or the lower portion 23c is a horizontal plane that is substantially perpendicular to the direction of the back of the watch, which is different from the embodiment described above.

[0188] (Fourth Implementation)

[0189] Figure 24 This is a front view of the slider from the front side in the fourth embodiment. In the slider 10 of this embodiment, the distances A and B of the first gap SA and the second gap SB between the left and right pairs of flanges 17, 17 and the panel 20 are different from each other. The first gap SA is located on the side where the insert bar 40 is located (left side L), and the second gap SB is located on the side where the base bar 50B is located (right side R). Moreover, the distance A of the first gap SA is greater than the distance B of the second gap SB (A > B).

[0190] The first gap SA is set to be larger than the second gap SB to allow the plug connector 45 of the plug 40 to pass through, thereby improving the insertability of the plug 40. Furthermore, since the socket connector 55 is not inserted into the second gap SB, it is not a problem even if its distance B is less than the distance A.

[0191] The various embodiments have been described above with reference to the accompanying drawings, but the present invention is certainly not limited to these examples. It will be apparent to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and it should be understood that these modifications or alterations also clearly fall within the technical scope of the present invention. Furthermore, the structural elements in the above embodiments can be combined arbitrarily without departing from the spirit of the invention.

[0192] As stated above, the following matters are disclosed in this specification.

[0193] (1) An invisible zipper, comprising:

[0194] A pair of first and second zipper teeth on the left and right sides;

[0195] A zipper pull, used for opening and closing the first zipper chain teeth and the second zipper chain teeth; and

[0196] A separation insert is provided at the lower end of the first zipper tooth strip and the second zipper tooth strip in the length direction.

[0197] In the invisible zipper,

[0198] The separate insert includes:

[0199] An insert bar, which is disposed on the inner edge of the first zipper tooth in the left-right direction; and

[0200] The socket is located on the inner edge of the second zipper chain in the left-right direction, and can be connected to or disconnected from the plug.

[0201] The slider includes:

[0202] The main body of the zipper pull includes: a back plate; a pair of left and right walls disposed on the outer edges of the back plate in the left and right directions and extending towards the surface; a pair of left and right flanges extending from the surface of the pair of left and right walls in the left and right directions in the inner direction; a guide post disposed on the front side of the back plate and extending towards the surface; and a panel extending from the surface of the guide post towards the rear.

[0203] A pull tab mounting portion is disposed on the surface of the face plate of the pull tab body; and

[0204] A pull tab is installed in the pull tab mounting part.

[0205] Based on the friction between the pull tab and the pull tab mounting part, the pull tab can maintain its posture at least in the fallen posture, and the surface of the panel on which the pull tab mounting part is provided is located on the side closer to the surface of the insert bar.

[0206] (2) In the concealed zipper described in (1), a protrusion protruding towards the surface is provided on the surface of the insert.

[0207] The socket has a plug hole that opens upwards, allowing the plug to be inserted and removed along its length. A recessed portion is provided on the inner surface of the plug hole, facing the surface of the plug. The protrusion of the plug can be received in the recessed portion of the plug hole. A notch is provided at the inner end of the protrusion of the plug in the left-right direction.

[0208] (3) In the invisible zipper described in (2), the bottom surface of the back side of the cut-out portion is located on the back side of the surface of the insert.

[0209] (4) In the invisible zipper described in (2) or (3), an inclined surface is formed at the inner end of the protrusion surface of the insert bar in the left-right direction, and the inclined surface is inclined to the back side as it is oriented towards the inner side in the left-right direction.

[0210] (5) In any of the concealed zippers described in (1) to (4), the pull tab includes a shaft portion supported by the pull tab mounting portion, the shaft portion being located on the surface side of the insert bar.

[0211] (6) In the invisible zipper described in (5), the pull tab includes: a base end; and a free end located on the side opposite to the base end, wherein the left-right outer end of the base end of the pull tab is an inclined surface that tilts toward the free end side as it moves outward in the left-right direction.

[0212] (7) In any of (2) to (4) of the concealed zipper, the pull tab includes: a base end; and a free end located on the side opposite to the base end, wherein the base end of the pull tab is located on the back side of the bottom surface of the surface side recess of the insert hole.

[0213] (8) In any of (2) to (4) of the concealed zipper, the tab includes: a base end; and a free end located on the side opposite to the base end, wherein the base end of the tab is located on the back side of the protruding surface of the insert as the protrusion.

[0214] (9) In any of (1) to (8) the concealed zipper, the tab includes: a base end; a free end located on the side opposite to the base end; and a curved portion formed between the base end and the free end.

[0215] Compared to the position where the pull tab is bent downwards, in the position where the pull tab is bent upwards, the portion of the pull tab from the curved portion to the free end tilts towards the surface.

[0216] (10) In the invisible zipper described in (9), a protrusion protruding towards the surface is provided on the surface of the dial plate of the zipper head body, and the protrusion limits the folding angle of the zipper by abutting against the zipper when the zipper folds down.

Claims

1. An invisible zipper, characterized in that, include: A pair of first zipper teeth (2a) and second zipper teeth (2b) on the left and right sides; A zipper pull (10) for opening and closing the first zipper chain strap (2a) and the second zipper chain strap (2b); and A separation insert (9) is disposed at the lower end of the first zipper tooth strip (2a) and the second zipper tooth strip (2b) in the length direction. The separate insert (9) includes: Insert rod (40), which is disposed on the inner edge of the first zipper tooth strip (2a) in the left-right direction; and A socket (50) is provided on the inner edge of the second zipper tooth tape (2b) in the left-right direction, and can be connected to or disconnected from the plug (40). The zipper head (10) includes a zipper head body (11), a zipper tab mounting part (21), and a zipper tab (30) mounted on the zipper tab mounting part (21). The zipper pull body (11) includes: a back plate (13); a pair of left and right wall portions (15) disposed on the outer edges of the back plate (13) in the left and right directions and extending towards the surface; a pair of left and right flange portions (17) extending from the surface of the pair of left and right wall portions (15) towards the inner side in the left and right directions; a guide post (19) disposed on the front side of the back plate (13) and extending towards the surface; and a face plate (20) extending from the surface of the guide post (19) towards the rear. The pull tab mounting part (21) is disposed on the surface (23) of the face plate (20) of the pull head body part (11). Based on the friction between the pull tab (30) and the pull tab mounting part (21), the pull tab (30) can maintain its posture at least in the collapsed position. The surface (23) of the panel (20) on which the pull tab mounting part (21) is provided is located on the side closer to the surface than the surface (41a) of the insert (40).

2. The invisible zipper according to claim 1, characterized in that: A protrusion (46) protruding towards the surface is provided on the surface (41a) of the insert (40). The socket (50) has a plug hole (59) that opens upwards, allowing the plug (40) to be inserted and removed along its length. A surface recess (57) is provided on the facing surface (52a) of the inner surface of the insertion hole (59) that faces the surface (41a) of the insertion rod (40). The protrusion (46) of the insert (40) can be received in the surface recess (57) of the insert hole (59). A notch (47) is provided at the inner end of the protrusion (46) of the insert (40) in the left-right direction.

3. The invisible zipper according to claim 2, characterized in that: The bottom surface (47a) on the back side of the notched portion (47) is located on the back side of the insert (40) compared to the surface (41a) of the insert (40).

4. The invisible zipper according to claim 2, characterized in that: An inclined surface (46b) is formed on the inner end of the protrusion surface (46a) of the insert (40) in the left-right direction. The inclined surface (46b) is inclined to the back side as it is oriented towards the inner side in the left-right direction.

5. The invisible zipper according to claim 1, characterized in that: The pull tab (30) includes a shaft portion (33) supported by the pull tab mounting portion (21). The shaft (33) is located on the surface side of the insert (41a) compared to the surface of the insert (40).

6. The invisible zipper according to claim 5, characterized in that: The pull tab (30) includes: a base end (31); and a free end (32) located on the side opposite to the base end (31). The outer end (31a) of the base end (31) of the pull tab (30) in the left and right directions is an inclined surface that tilts towards the free end (32) as it moves outward in the left and right directions.

7. The invisible zipper according to claim 2, characterized in that: The pull tab (30) includes: a base end (31); and a free end (32) located on the side opposite to the base end (31). The base end (31) of the pull tab (30) is located on the back side of the bottom surface (57b) of the surface recess (57) of the insert hole (59).

8. The invisible zipper according to claim 2, characterized in that: The pull tab (30) includes: a base end (31); and a free end (32) located on the side opposite to the base end (31). The base end (31) of the pull tab (30) is located on the back side of the protrusion surface (46a) of the insert (40), which is the surface of the protrusion (46).

9. The invisible zipper according to claim 1, characterized in that: The pull tab (30) includes: a base end (31); a free end (32) located on the side opposite to the base end (31); and a bent portion (36) formed between the base end (31) and the free end (32). Compared to the position where the pull tab (30) is bent downwards, in the position where the pull tab (30) is bent upwards, the portion of the pull tab (30) from the curved portion (36) to the free end (32) is more inclined towards the surface.

10. The invisible zipper according to claim 9, characterized in that: A protrusion (26) protruding towards the surface is provided on the surface (23) of the dial plate (20) of the main body (11) of the slider. The protrusion (26) limits the bending angle of the pull tab (30) by abutting against the pull tab (30) when the pull tab (30) bends downward.

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