Opening the insert

Abstract

The utility model discloses even if the same puller is used in right insertion type and left insertion type open and separate insert part, and the claw part of the puller can not be easily hooked on the open and separate insert part of the insertion stick. The open and separate insert part (1, 2) of the utility model has an insertion stick (10, 60), a seat stick (20, 70) and at least one puller (40, 40a, 40b), the insertion stick has an insertion stick main body part (11, 61) and a base end insertion part (12, 62) and a claw through passage (13, 63) arranged at the base end part of the insertion stick, the claw through passage is arranged between the insertion stick main body part (11, 61) and the base end insertion part (12, 62), and is formed to allow the stop claw body (50) arranged at the puller (40, 40a, 40b) to pass through, and the passage bottom surface (13a, 63a) of the claw through passage is arranged lower than the position of the first surface (11a, 61a) of the insertion stick main body part in the thickness direction.

Description

Technical Field

[0001] This utility model relates to an opening and closing insert for a zipper. Background Technology

[0002] In traditional zippers, in order to allow the left and right zipper teeth to be pulled apart when the zipper pull slides and the left and right zipper teeth are completely separated, an opening and closing insert is sometimes provided.

[0003] As for such zipper pulls, there are known types of zipper pulls that use a pusher bar, a base bar, a base body, and a zipper pull to connect and open the left and right zipper teeth, and double-ended zipper pulls that use a pusher bar, a base bar, and two zipper pulls to connect and open the left and right zipper teeth. Furthermore, the common type of zipper pull is sometimes referred to as a straight-opening type zipper pull.

[0004] An example of a zipper opener insert is described in, for example, Japanese Patent Application Publication No. 2002-136309 (Patent Document 1). In the opener insert described in Patent Document 1, an inclined surface is provided on the upper surface of the insert bar, which slopes upward from the tip of the insert bar toward the base of the insert bar. Therefore, when the insert bar is inserted into the zipper pull, the claw portion provided on the zipper pull cover can be prevented from obstructing the insertion of the insert bar. Thus, the insertion operation of the insert bar can be performed smoothly.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2002-136309 Utility Model Content

[0008] Problems to be solved by utility models

[0009] In the zipper described in Patent Document 1, the claw portion of the cover is configured to protrude into the zipper tooth guide path of the zipper body and engage with the zipper tooth row, thereby forming a stopping mechanism. In this stopping mechanism, when the zipper is stopped relative to the zipper tooth row, the claw portion of the cover inserts into the zipper tooth row and engages with it, thus holding the zipper in its stopped position.

[0010] However, the stop mechanism installed on the zipper pull has been constructed in various ways depending on the purpose of the zipper and the shape of the zipper pull. In addition, the position of the claw protruding into the zipper teeth guide path of the zipper pull body and the size of the claw are mostly different between zipper pulls with different stop mechanism constructions.

[0011] Therefore, when setting the zipper insert, it is usually necessary to consider the position and size of the insert bar and seat bar, as well as the claw of the zipper head, to form the zipper insert. The zipper has a zipper head with a stop mechanism.

[0012] As for open / close inserts, it is generally known that there are right-hand open / close inserts with the insert bar operated by the right hand and left-hand open / close inserts with the insert bar operated by the left hand. However, for example, when different types of pull heads are used for right-hand and left-hand open / close inserts with different stop mechanism structures, the number of pull head types increases, resulting in increased manufacturing costs, reduced productivity and manufacturing efficiency, and increased complexity in quality management and process management.

[0013] On the other hand, for example, when the pull head with a stop mechanism used in the right-insertion type of open-close insert is directly used in the left-insertion type of open-close insert, undesirable situations may occur, such as the pull bar hooking onto the claw of the pull head when the pull bar is inserted, or the claw of the pull head partially hooking onto the pull bar when the pull head is slid after the pull bar is inserted.

[0014] This utility model was made in view of the above-mentioned problems, and its purpose is to provide the following opening and closing insert: a pull head with a stop mechanism having the same structure can be used for both right-insertion type opening and closing inserts and left-insertion type opening and closing inserts, and even if the same structure of the pull head is used, when the pull head is slid after the insert bar is inserted, it is not easy for the claw of the pull head to hook onto the insert bar.

[0015] Solution for solving the problem

[0016] To achieve the above objectives, the zipper opening / closing insert provided by this utility model is a zipper opening / closing insert, which includes: an insert bar disposed on the first zipper tooth strip of the zipper; a seat bar disposed on the second zipper tooth strip of the zipper; and at least one zipper pull capable of inserting the insert bar and the seat bar. When the left and right zipper teeth of the zipper are separated, the zipper opening / closing insert can pull the first zipper tooth strip and the second zipper tooth strip apart. The insert bar has a first insert bar half disposed on one side of the zipper in the thickness direction and a second insert bar half disposed on the other side of the thickness direction, and has a portion disposed on the side closer to the zipper tooth in the length direction of the zipper. The insert has a base end and a top end disposed on the side away from the zipper teeth. The insert has: a main body portion which is installed on the zipper tape of the first zipper tooth tape; and a base end insertion portion and a claw through passage disposed on the base end portion of the first insert half. The base end insertion portion is formed to be inserted between the seat bar in the second zipper tooth tape and the zipper tooth adjacent to the seat bar. The claw through passage is disposed between the main body portion and the base end insertion portion and is formed to allow partial passage of the stop claw body disposed on the zipper head. The bottom surface of the claw through passage is disposed in the thickness direction at a position lower than a first surface of the main body portion facing the thickness direction.

[0017] In the opening and closing insert of this utility model, it is preferable that the bottom surface of the claw through-path is arranged in the thickness direction to be lower than the first surface of the base insertion portion facing the thickness direction.

[0018] Additionally, preferably, the bottom surface of the claw-through passage has a guide slope that slopes downward toward the zipper teeth of the first zipper tooth belt.

[0019] Furthermore, preferably, the base insertion portion is configured as a first base insertion portion, and a second base insertion portion is provided at the base end of the second insertion portion of the second insertion portion. The second base insertion portion is configured to be inserted between the seat bar and the zipper teeth adjacent to the seat bar, and the maximum value of the thickness dimension of the first base insertion portion is smaller than the maximum value of the thickness dimension of the second base insertion portion.

[0020] In the opening and closing insert of this utility model, it is preferred that at least a portion of the opposite side edge of the insert bar, which is opposite to the seat bar, is provided with a side step portion that allows partial insertion of the stop claw body. The side step portion has a step side wall surface formed from the first surface of the insert bar body via a bending portion and a step bottom surface connected to the lower end of the step side wall surface.

[0021] In this case, it is preferable that the first surface of the base insertion portion facing the thickness direction forms a smooth and continuous flat surface with the bottom surface of the step of the side step portion, and the bottom surface of the step has a thickened inclined surface that slopes upward toward the first surface of the base insertion portion.

[0022] Additionally, preferably, the side step portion has a width-increasing portion that increases in width dimension of the bottom surface of the step towards the base end of the insert rod.

[0023] Furthermore, preferably, the side step portion is continuously provided from the claw through-passage to the top of the insert in the length direction.

[0024] In the release insert of this utility model, preferably, the release insert is provided with a base body, the base body is integrally formed with the base bar, and has a receiving space portion that can accommodate a part of the insert bar. The claw portion, which is part of the stop claw body, is configured in the width direction of the zipper head body in such a way that it can be inserted and pulled out relative to the chain tooth guide path of the zipper head body. When the zipper head is in contact with the base body, the claw portion is held in the claw through passage or the side step portion in contact with the bottom surface of the claw through passage of the insert bar or the bottom surface of the side step portion provided on the opposite side edge of the insert bar.

[0025] In the zipper puller of this invention, two zipper heads can also be mounted on the second zipper tooth belt with their rear openings facing each other. The base bar has: a zipper head stopping portion that abuts against one of the zipper heads to stop it; and a receiving recess disposed on one side of the base bar in the thickness direction, which allows a portion of the stop claw body in one of the zipper heads to be inserted and receive a portion of the stop claw body. The receiving recess opens on the opposite side edge of the base bar opposite to the insert bar, and the claw portion of the stop claw body is located on the zipper head. The zipper head body is positioned in the width direction such that it can be inserted and pulled out relative to the zipper tooth guide path of the zipper head body. It is located on one side of the zipper head body from the center position in the width direction. When one zipper head is in contact with the zipper head stop portion of the base bar and the other zipper head is in contact with the zipper head of the other zipper head, the claw portion of the other zipper head is held in the claw through-passage or the side step portion in contact with the bottom surface of the claw through-passage of the insert bar or the bottom surface of the side step portion provided on the opposite side edge of the insert bar.

[0026] In this case, it is preferable that the insert has a tip inclined surface at the corner of the top end of the insert opposite to the base bar, and the tip inclined surface of the insert is inclined downward in such a way that the thickness of the insert decreases in the length and width directions.

[0027] Effects of the utility model

[0028] According to the present invention, a pull head with a stop mechanism having the same structure can be used for both right-insertion and left-insertion types of open-break inserts. Furthermore, even when using the same pull head structure for both right-insertion and left-insertion types, the claw of the pull head is less likely to snag on the insert when sliding the pull head after insertion. Attached Figure Description

[0029] Figure 1 This is a partial cross-sectional view schematically representing the opening and closing insert of Embodiment 1 of the present invention.

[0030] Figure 2 It is a schematic representation Figure 1 The top view of the insert rod shown.

[0031] Figure 3 Viewed from the inside in the width direction. Figure 2 The side view of the insert shown.

[0032] Figure 4 yes Figure 2 The bottom view of the insert shown.

[0033] Figure 5 Viewed from the zipper teeth side Figure 2 The front view of the insert shown.

[0034] Figure 6 It is a schematic representation Figure 1 The diagram shows a partial 3D view of the pull head used for opening and closing the insert.

[0035] Figure 7 It is a partial cross-sectional view schematically illustrating the operation of inserting the insert rod into the pull head.

[0036] Figure 8 It is a schematic representation Figure 7 A cross-sectional view showing the positional relationship between the insert rod and the claw of the stop claw body in the indicated state.

[0037] Figure 9 It is a partial cross-sectional view schematically showing the state in which the insert is partially inserted into the receiving space of the base.

[0038] Figure 10It is a partial cross-sectional view schematically showing the state in which the zipper head is held separate from the base.

[0039] Figure 11 It is an enlarged and schematic representation. Figure 10 A perspective view of the claw penetration passage and the claw portion of the stop claw body in the state shown.

[0040] Figure 12 This is a partial cross-sectional view schematically illustrating the opening and closing insert of Embodiment 2 of the present invention.

[0041] Figure 13 It is a schematic representation Figure 12 The top view of the insert rod shown.

[0042] Figure 14 Viewed from the inside in the width direction. Figure 13 The side view of the insert shown.

[0043] Figure 15 yes Figure 13 The bottom view of the insert shown.

[0044] Figure 16 It is a schematic representation Figure 12 The top view of the seat bar for opening and closing the insert is shown.

[0045] Figure 17 Viewed from the inside in the width direction. Figure 16 The side view of the base rod shown.

[0046] Explanation of reference numerals in the attached figures

[0047] 1, 2, Insertion pin; 10, Insert rod; 10a, Upper half of insert rod (first insert rod half); 10b, Lower half of insert rod (second insert rod half); 11, Main body of insert rod; 11a, Upper surface of insert rod (first surface); 11b, Lower surface of insert rod (second surface); 11c, Pin recess; 12, First base end insertion part; 13, Claw through passage; 13a, Bottom surface of passage; 14, Second base end insertion part; 15, Upper side step part; 15a, Step side wall; 15b, Step bottom surface; 15c, Width increasing part; 15d, Thickened inclined surface; 16, Lower 17. Side step section; 18. Engaging recess; 29. ​​Chain tooth protrusion; 20. Seat bar; 21. Seat bar main body; 22. Engaging protrusion; 23. Pin recess; 30. Seat body; 31. Seat body main body; 32. Receiving space section; 33. Auxiliary space section; 40. Sliding head; 40a. First sliding head (front sliding head); 40b. Second sliding head (rear sliding head); 41. Sliding head main body; 42. Upper wing plate; 43. Lower wing plate; 44. Connecting post; 45. Flange section; 46. Cover mounting section; 46a. Protrusion; 47. Claw hole; 50. Stop claw body; 51. 52, 52a, Claw portion; 53, Elastic force application portion; 54, Mounting opening portion; 60, Insert rod; 60a, Upper half of insert rod (first insert rod half); 60b, Lower half of insert rod (second insert rod half); 61, Insert rod body portion; 61a, Upper surface of insert rod (first surface); 61b, Lower surface of insert rod (second surface); 61c, Pin recess; 62, First base end insertion portion; 63, Claw through passage; 63a, Passage bottom surface; 64, Second base end insertion portion; 65, Upper side step portion; 65b, Step bottom surface; 65c, Width increasing portion; 65d, Thickened inclined surface; 66, Lower side step; 66b, Step bottom surface; 67, Engaging recess; 68, Chain tooth protrusion; 69a, Upper top inclined surface; 69b, Lower top inclined surface; 70, Base bar; 70a, Upper half of base bar (first base bar half); 70b, Lower half of base bar (second base bar half); 71, Base bar main body; 72, Engaging protrusion; 73, Pin recess; 74, Pull head stop; 81, First pawl receiving recess; 82, Second pawl receiving recess; 83, Third pawl receiving recess; W1, Width dimension of the step bottom surface. Detailed Implementation

[0048] The inventors investigated the presence and cause of hooking between the insert bar and the claw of the pull head when operating the pull head, specifically in cases where the pull head with a stop mechanism is used in right-insertion type open-close inserts and left-insertion type open-close inserts.

[0049] As a result, in zipper pulls with a stop mechanism used in, for example, right-insertion type zipper pulls, the claw portion forming the stop mechanism is mostly positioned to the right of the center position in the width direction of the zipper pull body within the zipper pull body's chain tooth guide path. Therefore, when using this right-insertion type zipper pull in a left-insertion type zipper pull, it is determined that when the insert bar is inserted into the zipper pull, the claw portion of the zipper pull is positioned below the insertion portion at the base of the insert bar, making it easy to hook onto the insert bar.

[0050] Furthermore, it was clarified that when the slider slides in the direction of chain tooth closure after inserting the insert bar, the claw of the slider hooks onto or near the base insertion part of the insert bar, or strongly rubs against or near the base insertion part of the insert bar. In addition, it was clarified that the sliding performance (starting performance) of the slider is reduced at the beginning due to the hooking or strong friction of the claw relative to the insert bar.

[0051] Therefore, when using a pull tab designed for right-insertion type in a left-insertion type opening and closing insert, the inventors conducted various experiments and studies to improve the sliding performance (especially the starting performance) of the pull tab after the insert bar is inserted. As a result, they discovered the following solution and completed this utility model: by providing a claw through-path between the insert bar body and the base insertion part of the insert bar, which allows the claw part of the stopping claw body to pass through, the interference between the claw part and the insert bar can be eliminated or reduced.

[0052] The following are examples and references to the appendix. Figure 1 The preferred embodiments of this utility model will be described below.

[0053]

Example 1

[0054] Figure 1 This is a schematic partial cross-sectional view of the open / closed insert of Embodiment 1. Figures 2-5 These are schematic top view, side view, bottom view and front view of the insert rod in Embodiment 1.

[0055] Figure 6 This is a schematic perspective view of a portion of the zipper pull in Embodiment 1. Furthermore, in Figure 1 And the following Figure 7 and Figure 8 In order to illustrate the features of this utility model in a simple and easy-to-understand way, the pull head and the base are shown in cross-section.

[0056] In the following description relating to the zipper and the zipper puller 1, the front-back direction is the direction along the length of the zipper teeth on the left and right sides, and also the direction along the sliding direction of the zipper pull 40. In this case, in the front-back direction, the direction in which the zipper pull 40 slides in the direction that closes the zipper is defined as forward, and the direction in which the zipper pull 40 slides in the direction that opens the zipper is defined as rearward.

[0057] The left-right direction is the direction along which a pair of zipper teeth move closer together and further apart. Alternatively, the left-right direction can be referred to as the width direction of the zipper tape. In this case, the orientation of the zipper teeth on the side closer to the target side is defined as the inside of the left-right direction, and the orientation of the zipper teeth on the side farther from the target side is defined as the outside of the left-right direction. The tape width direction, when viewed in a cross-section orthogonal to the front-back direction, is orthogonal to the thickness of the zipper tape and runs along the surface or back of the zipper tape.

[0058] The up-down direction is orthogonal to the front-back and left-right directions mentioned above. Alternatively, the up-down direction can be referred to as the front-back direction of the zipper or the thickness direction of the zipper tape. In this case, the orientation of the side of the stop claw body 50 (claw portion 52) of the zipper head 40 that is positioned relative to the opening insert 1 (especially the insert bar 10) is set to the upper side, and the orientation of the opposite side is set to the lower side.

[0059] Furthermore, specifically, in the case of the zipper and the opening / closing insert 1 in this embodiment 1, the front-to-back direction is... Figure 1 The top and bottom directions of the paper. The left and right directions are... Figure 1 The left and right directions on the paper. The up and down directions are... Figure 1 The paper's face-back orientation. In this case, the top is... Figure 1 The paper's front and back sides are facing downwards. Figure 1 The orientation of the inside of the paper.

[0060] The zipper in this embodiment 1 is provided with Figure 1 The opening insert 1 is shown as a standard type (normal type). This opening insert 1 is located at the rear end of the zipper.

[0061] The zipper of this embodiment 1 includes: a pair of first zipper tooth strips (not shown) and a second zipper tooth strip (not shown); a zipper pull 40 that can slide along the tooth rows provided on each zipper tooth strip; a stop member (not shown) disposed adjacent to the front end of the left and right tooth rows; and a stick 10, a seat bar 20, and a seat body 30 disposed adjacent to the rear end of the left and right tooth rows. The zipper pull 1 of the normal opening type is formed by the zipper stick 10, the seat bar 20, the seat body 30, and the zipper pull 40.

[0062] In the zipper of this embodiment 1, the first zipper tooth tape, the second zipper tooth tape, and the stop member are formed in essentially the same way as the zipper tooth tape and stop member used in conventional zippers.

[0063] For example, in this embodiment 1, the first zipper tooth belt disposed on the right side and the second zipper tooth belt disposed on the left side each have a longitudinally elongated zipper belt in the shape of a strip and a plurality of zipper teeth fixed thereon. Each zipper belt has a belt body portion and a core wire portion formed on the inner side edge portion of the zipper belt. The core wire portion has a shape that bulges out relative to the belt body portion in the vertical direction.

[0064] Multiple zipper teeth are formed by injection molding of synthetic resin onto the side edge of the zipper tape, including the core wire portion. These multiple zipper teeth are arranged at constant intervals along the length (front-to-back direction) of the zipper tape, thereby forming a tooth array for the zipper head 40 to be slidably mounted.

[0065] Each zipper tooth is fixed to the zipper tape by covering a portion of the upper surface (tape surface) and a portion of the lower surface (tape back) of the zipper tape in a manner that encloses the side edge of the zipper tape. Each zipper tooth has: a tooth body portion fixed to the zipper tape; a neck portion extending inward from the tooth body portion in a left-right direction; an engaging head portion extending further inward from the neck portion in a left-right direction; and a pair of shoulders portion protruding from the neck portion in a front-back direction.

[0066] The neck of the zipper tooth has a constricted shape that tapers in the front-to-back direction. The engaging head is generally oblong when viewed from above. An insertion recess is formed at the top of the engaging head (the inner end in the left-to-right direction) along the front-to-back direction for inserting into the shoulder of the zipper tooth to be engaged. Furthermore, in this invention, the zipper tape and zipper teeth are not particularly limited and can be varied depending on the application of the zipper.

[0067] A stop member (not shown) is provided adjacent to the front end of the zipper teeth on each of the left and right first and second zipper teeth. By providing the stop member, the sliding limit position of the front side of the zipper pull 40 is set, and the zipper pull 40 is prevented from falling off the front side of the zipper teeth.

[0068] As described above, the zipper puller 1 of this embodiment 1 includes: a pull bar 10, which is disposed on the right side of the first zipper tooth chain belt (not shown); a seat bar 20 and a seat body 30, which are disposed on the left side of the second zipper tooth chain belt (not shown); and a zipper head 40, which is slidably mounted on the chain tooth row of the second zipper tooth chain belt.

[0069] In the zipper puller 1 of this embodiment 1, when viewed from above, a pusher bar 10 is arranged on the first zipper tooth strip on the right side, and a seat bar 20 and a seat body 30 are arranged on the second zipper tooth strip on the left side. Therefore, the zipper puller 1 of this embodiment 1 is formed as a left-insertion type zipper puller 1 such that when a zipper having this zipper puller 1 is installed on, for example, clothing, a person wearing the clothing operates the pusher bar 10 of the zipper puller 1 with their left hand. In this left-insertion type zipper puller 1, the zipper head 40 is installed in the tooth row of the second zipper tooth strip on the left side where the seat bar 20 and the seat body 30 are located.

[0070] In the slider 40 of this embodiment 1, for example, Figure 1 As shown, the claw portion 52 of the stop claw body 50 of the zipper pull 40 is positioned offset to the right relative to the center position in the width direction of the zipper pull 40 within the chain tooth guide path of the zipper pull body 41. By configuring the claw portion 52 of the stop claw body 50 in this way, when the zipper pull 40 is used for example, in the case of a right-handed insertion type of plug-in device where the plug is operated with the right hand, the claw portion 52 of the stop claw body 50 will not interfere with the plug 10 when the plug is held with the right hand and inserted into the zipper pull 40 and the base.

[0071] Therefore, even if the pull head 40 of this embodiment 1 is used for a right-insertion type open-close insert, the following adverse situations will not occur: when the insert bar 10 is inserted into the pull head 40, the insert bar 10 hooks onto the claw portion 52 of the pull head 40; when the pull head 40 is slid after the insert bar 10 is inserted, the claw portion 52 of the pull head 40 hooks onto the insert bar.

[0072] In this embodiment 1, the zipper pull 40 can engage the chain teeth on the right side of the first zipper chain with the chain teeth on the left side of the second zipper chain by sliding the zipper pull 40 away from the base 30 (chain teeth closing direction). Furthermore, the zipper pull 40 can separate the left and right chain teeth by sliding the zipper pull 40 towards the base 30 (chain teeth separating direction).

[0073] The zipper pull 40 includes: a zipper pull body 41; a stop claw 50 mounted on the zipper pull body 41; a cover (not shown) that covers the stop claw 50 from above and is fixed to the zipper pull body 41; and a pull tab (not shown) whose shaft portion is mounted between the zipper pull body 41 and the cover and held between the zipper pull body 41 and the cover. In this zipper pull 40, the stop claw 50 is mounted on the zipper pull body 41 in a manner that allows it to swing within the cover.

[0074] The zipper head body 41 includes: an upper wing plate 42; a lower wing plate 43, which is separately disposed from the upper wing plate 42; a connecting post 44, which connects the front end (shoulder-side end) of the upper wing plate 42 and the front end (shoulder-side end) of the lower wing plate 43; upper and lower flange portions 45, which are disposed on the left and right side edges of the upper wing plate 42 and the lower wing plate 43; and front and rear cover mounting portions 46, which protrude upward from the upper wing plate 42. A protrusion 46a is provided at the upper end of the front cover mounting portion 46, which can be inserted into the mounting opening 54 of the stop claw body 50 (described later).

[0075] At the front end of the zipper pull body 41, left and right shoulder openings are formed to clamp the guide post in the middle, and a rear opening is formed at the rear end of the zipper pull body 41. A roughly Y-shaped zipper tooth guide path is formed between the upper wing plate 42 and the lower wing plate 43, connecting the left and right shoulder openings and the rear opening. A claw hole 47 is provided in the zipper pull body 41, which passes through the upper wing plate 42 and the rear cover mounting part 46 in the vertical direction. A through gap is formed between the upper and lower flanges 45 of the zipper pull body 41 for the zipper tape to pass through.

[0076] The stop claw body 50 is formed by stamping a metal sheet such as a copper alloy, and is sometimes referred to as a locking pin. The stop claw body 50 has: a claw body portion 51, which has a generally C-shaped shape when viewed from the side; a claw portion 52, which extends from the rear end of the claw body portion 51 with a narrowing width; and an elastic force-applying portion 53, which branches upward from the claw body portion 51.

[0077] The claw body portion 51 is formed with a constant width from its front end to its rear end. The claw body portion 51 has a generally rectangular mounting opening 54 and a narrow opening extending rearward in a straight line from the mounting opening 54. When the stop claw body 50 is placed on the zipper head body 41, the protrusion 46a provided in the zipper head body 41 is inserted into the mounting opening 54 of the claw body portion 51.

[0078] The claw portion 52 of the stop claw body 50 extends downward from the rear end of the claw body portion 51. The claw portion 52 is positioned relative to the zipper head body 41 in the left-right direction (zipper head width direction) on one side biased towards the left-right direction from the center of the zipper head body 41 (the right side in this embodiment 1). The claw portion 52 is configured to be inserted into and removed relative to the zipper tooth guide path of the zipper head body 41 via a claw hole 47 provided in the zipper head body 41. The claw portion 52 engages with the tooth row of the first zipper tooth strip that passes through the tooth guide path of the zipper head body 41 by being inserted into the tooth guide path. Thus, the stop mechanism of the zipper head 40 functions, locking the zipper head 40 to prevent slippage relative to the tooth row. In this embodiment 1, the stop claw body 50 is mounted on the zipper head body 41 such that the claw portion 52 can move within a small range in the left-right direction within the tooth guide path.

[0079] The elastic force-applying part 53 of the stop claw body 50 is installed between the zipper head body 41 and the cover body and abuts against the top of the cover body (the upper wall of the cover body), and elastically deforms close to the claw body part 51. As a result, the elastic force-applying part 53 applies downward force to the claw body part 51, so that the claw part 52 can be inserted into the chain tooth guide path through the claw hole 47 of the zipper head body 41.

[0080] The cover of the zipper pull 40 (not shown) has a box-shaped shape with an opening at the bottom. With the cover mounting portions 46 located at the front and rear of the zipper pull body 41 housed in the internal space of the cover, several parts of the cover are partially pressed toward the front and rear cover mounting portions 46 to plastically deform several parts of the cover, thereby fixing the cover to the front and rear cover mounting portions 46 of the zipper pull body 41.

[0081] The insert 10 of the zipper puller 1 is formed by injection molding of synthetic resin into the zipper tape of the first zipper tooth chain. The insert 10 is arranged adjacent to and continuous with the chain teeth in the first zipper tooth chain. The insert 10 is fixed to the side edge of the zipper tape across the upper and lower surfaces of the zipper tape. The insert 10 is formed in such a way that it can pass through the chain tooth guide path of the zipper head 40 and is received in the receiving space 32 of the base 30 (described later).

[0082] The insert bar 10 has an upper half (first insert bar half) 10a disposed on the upper surface side (one side) of the zipper tape and a lower half (second insert bar half) 10b disposed on the lower surface side (the other side), with the center position in the thickness direction of the zipper tape as the dividing point. For the insert bar 10, in the front-back direction, the end of the insert bar 10 disposed on the side closer to the zipper teeth is defined as the insert bar base end, and the end of the insert bar 10 disposed on the side away from the zipper teeth is defined as the insert bar tip.

[0083] The insert 10 of this embodiment 1 has: an insert body 11, which is mounted on the zipper tape; a first base insertion portion 12 and a claw through passage 13, which are provided at the insert base end of the upper half 10a of the insert; a second base insertion portion 14, which is provided at the insert base end of the lower half 10b of the insert; an upper side step portion 15, a lower side step portion 16 and a locking recess 17, which are provided on the inner side edge portion (opposite side edge portion) of the insert 10 opposite to the seat bar 20; and a chain tooth protrusion 18, which protrudes inward in the left and right direction from the insert base end portion of the insert body 11.

[0084] The insert bar body 11 is fixed to the zipper tape and has a shape that is longer in the front-to-back direction. The insert bar body 11 has an upper insert bar surface (first surface) 11a facing upward and a lower insert bar surface (second surface) 11b facing downward. The upper insert bar surface 11a and the lower insert bar surface 11b are each formed by a flat surface orthogonal to the vertical direction. The thickness dimension (vertical dimension) between the upper insert bar surface 11a and the lower insert bar surface 11b of the insert bar body 11 is set to be the same as the thickness dimension of the zipper teeth.

[0085] The upper half 10a and lower half 10b of the insert body 11 are provided with pin recesses 11c having a shape that is recessed from the upper surface 11a or the lower surface 11b of the insert. In this embodiment 1, two pin recesses 11c are provided in the upper half 10a and the lower half 10b of the insert. Such pin recesses 11c are pin indentations formed by pressing the zipper tape with a pin during the injection molding of the insert 10 to position the zipper tape. The two pin recesses 11c provided in the upper half 10a of the insert have upwardly inclined recess surfaces that slope upwards from the bottom surface of the pin recess 11c toward the top surface of the insert, such that the thickness of the upper half 10a of the insert increases.

[0086] The first base insertion portion 12 of the insert bar 10 is provided on the inner side edge of the base end of the insert bar in the left-right direction, such that when the insert bar 10 is housed in the receiving space portion 32 of the seat body 30 and the left and right zipper teeth are engaged, at least a portion of the first base insertion portion 12 can be inserted between the seat bar 20 of the second zipper tooth belt provided on the left side and the zipper tooth adjacent to the seat bar 20 (hereinafter referred to as the seat bar adjacent tooth). Sometimes such a first base insertion portion 12 is also referred to as a first half tooth portion.

[0087] In this embodiment 1, the first base insertion portion 12 is disposed on the innermost side in the left-right direction on the upper half 10a of the insert bar, and is formed to protrude forward relative to the claw through passage 13. The first base insertion portion 12 has a shape (engaging shape) that can engage with the adjacent chain teeth of the seat bar of the second zipper chain when the left and right chain teeth are engaged.

[0088] The upper surface of the first base insertion portion 12 is positioned lower than the upper surface 11a of the insertion rod body portion 11 in the vertical direction (thickness direction). The first base insertion portion 12 is formed such that the maximum thickness of the first base insertion portion 12 is smaller than the maximum thickness of the second base insertion portion 14 provided in the lower half 10b of the insertion rod.

[0089] Specifically, for the insert 10, the lower and higher positions in the vertical direction refer to the positions closest to and furthest from the zipper tape, respectively. Additionally, in the side view of the insert 10 (… Figure 3 When the center position of the insert rod 10 in the vertical direction is to the upper surface of the first base insertion part 12 in the vertical direction, the thickness of the first base insertion part 12 is defined as the vertical dimension of the first base insertion part 12, and the vertical dimension of the center position of the insert rod 10 to the lower surface of the second base insertion part 14 in the vertical direction is defined as the thickness of the second base insertion part 14.

[0090] As described above, by forming the first base insertion portion 12 so that its upper surface is lower than the upper surface 11a of the insertion rod body portion 11, and / or by forming it so that the maximum value of its thickness dimension is smaller than that of the second base insertion portion 14, the appearance quality of the insertion rod 10 can be improved.

[0091] Furthermore, users can easily obtain a good tactile feel when touching the insertion rod 10. Moreover, even if a strong external force is applied to the first base insertion portion 12, the first base insertion portion 12 is not easily deformed. In addition, in this invention, the insertion rod 10 can also be formed such that the upper surface of the first base insertion portion 12 is at the same position (height position) as the upper surface 11a of the insertion rod body portion 11 in the vertical direction.

[0092] The claw-through passage 13 of the insert rod 10 is provided at the base end of the insert rod, and is also provided between the insert rod body 11 and the first base end insertion portion 12 in the left-right direction in a front-back direction. The claw-through passage 13 is formed such that the claw portion 52 of the stop claw body 50 provided in the pull head 40 can pass through. The claw-through passage 13 has a passage bottom surface 13a and a pair of left and right passage sidewalls extending upward from the left and right side edges of the passage bottom surface 13a.

[0093] The bottom surface 13a of the claw-through passage 13 is formed so as to contact the claw portion 52 of the pull head 40. Furthermore, the bottom surface 15b of the step portion 15 (described later) is not uneven, but smoothly continuous with it. This bottom surface 13a is positioned lower than the upper surface 11a of the insert body portion 11 in the vertical direction, and also lower than the upper surface of the first base insertion portion 12. The leading edge of the claw-through passage 13 is shown in the top view of the insert 10. Figure 2 It has a concave shape that curves backward.

[0094] The bottom surface 13a of the claw-through passage 13 has a guide slope that slopes downward toward the zipper tooth (front) near the first zipper tooth belt (see reference). Figure 11 The guide slope is formed such that the thickness of the upper half 10a of the insert decreases towards the front. In this embodiment 1, the guide slope is integrally provided throughout the front-rear direction of the bottom surface 13a of the passage, and also extends to the bottom surface 15b of the upper side step portion 15.

[0095] By providing such a guide slope surface on the bottom surface 13a of the claw-through passage 13, for example, when the pull head 40 and the seat 30 are held slightly apart as described later, when the insert rod 10 is moved forward in order to pull out the insert rod 10 from the pull head 40 (see reference) Figure 10 and Figure 11 This allows the claw portion 52 of the pull head 40 to contact the bottom surface 13a (guide inclined surface) of the claw penetration passage 13, thus enabling it to be lifted smoothly. This prevents the insertion rod 10 from getting caught on the claw portion 52, allowing it to be pulled out smoothly.

[0096] Furthermore, in this invention, the insert 10 can also be formed in such a way that no guiding inclined surface is provided in the claw penetration passage 13, and instead the bottom surface 13a of the claw penetration passage 13 is parallel to the front-back direction, for example. Alternatively, the insert 10 can also be formed in such a way that the bottom surface 13a of the claw penetration passage 13 and the upper surface of the first base insertion portion 12 form a single plane at the same height position.

[0097] The claw-through passage 13 is formed such that the gap between the left and right passage sidewalls (i.e., the passage width) is larger than the width of the claw portion 52 of the slider 40. In this embodiment 1, the claw-through passage 13 is formed such that the width of the claw-through passage 13 increases the further away from the bottom surface 13a of the passage. As a result, the claw portion 52 of the slider 40 can be smoothly inserted into the claw-through passage 13, and the claw portion 52 of the slider 40 can also move smoothly in the front-back direction within the claw-through passage 13.

[0098] like Figure 4As shown, the second base end insertion portion 14 of the insert bar 10 is disposed on the inner side edge portion in the left-right direction at the base end of the lower half 10b of the insert bar. The second base end insertion portion 14 has an asymmetrical shape in the vertical direction relative to the first base end insertion portion 12. The second base end insertion portion 14 is formed such that at least a portion of the second base end insertion portion 14 can be inserted between the seat bar 20 of the second zipper tooth chain and the adjacent tooth of the seat bar when the left and right chain teeth are engaged. In particular, the second base end insertion portion 14 of this embodiment has a shape that can engage with the adjacent tooth of the seat bar. Such a second base end insertion portion 14 is sometimes referred to as a second half chain tooth portion.

[0099] The second base insertion portion 14, when viewed from the side of the insert 10, has a maximum thickness dimension that is greater than the maximum thickness dimension of the first base insertion portion 12. As a result, when the left and right chain teeth are engaged, the lateral tensile strength of the zipper near the opening insert 1 can be improved.

[0100] Furthermore, the first base insertion portion 12 is formed such that the maximum thickness of the first base insertion portion 12 is smaller than that of the second base insertion portion 14, thereby making it less likely for the claw portion 52 of the pull head 40 to snag on the first base insertion portion 12. Alternatively, in this invention, the first base insertion portion 12 and the second base insertion portion 14 may be formed such that the maximum thickness is the same size, or they may be formed into mutually symmetrical shapes.

[0101] The upper side step portion 15 of the insert rod 10 is formed on the inner side edge of the upper half 10a of the insert rod in a manner that allows at least a portion of the claw portion 52 of the pull head 40 to be inserted and extends in the front-rear direction (see reference). Figure 2 , Figure 3 , Figure 8 (etc.) so that when the inserter 10 is inserted into the pull head 40, the claw 52 of the pull head 40 avoids the inserter 10 (or does not interfere with the inserter 10).

[0102] In this embodiment 1, the upper side step portion 15 is continuous with the claw through passage 13. The upper side step portion 15 extends continuously in the front-back direction while curving in the left-right direction from the claw through passage 13 to the tip (rear end) of the insert rod. Alternatively, in this invention, the insert rod 10 may be formed by partially providing a portion of the inner side edge of the upper half 10a where the upper side step portion 15 is not formed.

[0103] The upper side step portion 15 has a step side wall surface 15a formed in the vertical direction from the upper surface 11a of the insert rod body portion 11 via a bending portion and a step bottom surface 15b formed in the horizontal direction. The step bottom surface 15b is connected to the lower end of the step side wall surface 15a by means of the bending portion.

[0104] The step sidewall 15a of the upper side step portion 15 is smoothly continuous with the passage sidewall of one of the claw penetration passages 13. The step bottom surface 15b of the upper side step portion 15 is smoothly continuous with the passage bottom surface 13a of the claw penetration passage 13, and the step bottom surface 15b and the passage bottom surface 13a are formed as flat, continuous surfaces without any bumps or depressions. The step bottom surface 15b of the upper side step portion 15 is smoothly continuous with the upper surface of the first base insertion portion 12, and the step bottom surface 15b and the upper surface of the first base insertion portion 12 are formed as flat, continuous surfaces without any bumps or depressions.

[0105] By providing an upper side step 15 on the inner side edge of the upper half 10a of the insert rod, when the insert rod 10 is inserted into the pull head 40, for example... Figure 8 As shown, at least a portion of the claw 52 can be inserted into the space formed in the upper side step 15 of the insert rod 10, thus making it difficult for the insert rod 10 to come into contact with the claw 52 of the pull head 40. In particular, it makes it difficult for the insert rod 10 to come into contact from the side of the claw 52.

[0106] This prevents the claw portion 52 from obstructing the movement of the insertion rod 10 towards the seat 30. Furthermore, it prevents frictional resistance from occurring between the insertion rod 10 and the claw portion 52 (or reduces frictional resistance between the insertion rod 10 and the claw portion 52). Therefore, the insertion of the insertion rod 10 can be performed smoothly and easily.

[0107] The upper side step portion 15 has a constant width portion with a step bottom surface 15b and a width dimension W1 that is constant. For example, as shown... Figure 8 As shown, the width dimension W1 of the bottom surface 15b of the step is the dimension in the left-right direction from the side wall surface 15a of the upper side step portion 15 to the inner side end face of the insert rod 10.

[0108] In this embodiment 1, the constant width portion of the upper side step 15 is provided covering more than 50% of the length of the insert 10 in the front-rear direction. Furthermore, the constant width portion of the upper side step 15 is continuously formed from at least the central position of the insert 10 in the front-rear direction to the tip of the insert. This allows at least a portion of the claw portion 52 to be easily and stably inserted into the upper side step 15. Additionally, it prevents the insert body 11 from becoming excessively thin, ensuring that the insert 10 stably possesses appropriate strength.

[0109] The upper side step portion 15 has a width-increasing portion 15c that increases the width dimension W1 of the step bottom surface 15b toward the base end of the insert rod. Therefore, when the insert rod 10 is inserted into the receiving space portion 32 of the base body 30, the claw portion 52 of the stop claw body 50 can be easily placed on the step bottom surface 15b of the width-increasing portion 15c. Furthermore, by providing the width-increasing portion 15c, the width dimension of the first base end insertion portion 12 can be properly ensured, improving the strength of the first base end insertion portion 12. Moreover, a claw-through passage 13 through which the claw portion 52 of the pull head 40 passes can be stably provided between the insert rod body portion 11 and the first base end insertion portion 12.

[0110] In this embodiment 1, the width increasing portion 15c is provided in a region closer to the base end of the insert rod 10 than the center position in the front-rear direction (i.e., the front half of the insert rod 10). The width increasing portion 15c is provided in the region where the engaging recess 17 is formed in the front-rear direction of the insert rod 10. As a result, the base end of the insert rod 10 can be increased in the left-right direction, so the claw penetration passage 13 can stably have an appropriate width dimension that allows the claw portion 52 to pass through. In addition, the rear half of the insert rod 10 can be made thinner, so the insert rod 10 can be smoothly and stably inserted into the receiving space portion 32 of the seat 30 via the chain tooth guide path of the pull head 40.

[0111] In the insert 10 of this embodiment, the upper surface of the first base insertion portion 12 is positioned higher in the vertical direction than the bottom surface 15b of the upper side step portion 15 in the top part of the insert. Furthermore, the bottom surface 15b of the upper side step portion 15 has a thickened inclined surface 15d that slopes upward toward the front or toward the first base insertion portion 12. This thickened inclined surface 15d is provided in the longitudinal direction within the forming range of the insert 10 where the engaging recess 17 is formed, and particularly within the forming range where the width-increasing portion 15c is formed.

[0112] By providing such a thickened inclined surface 15d on the bottom surface 15b of the upper side step portion 15, the bottom surface 15b of the upper side step portion 15 can be smoothly continuous relative to the upper surface of the first base insertion portion 12 without forming unevenness. Furthermore, when viewing the insertion rod 10 from the inside in the left-right direction (refer to...), Figure 3 This increases the thickness between the bottom surface 15b of the upper side step portion 15 in the insert rod 10 and the inner wall surface of the engaging recess 17, thereby improving the strength of the first base insertion portion 12 and its surrounding area.

[0113] For example, Figure 3 and Figure 4As shown, the lower side step portion 16 of the insertion rod 10 is formed on the inner side edge of the lower half 10b of the insertion rod in a manner that extends in the front-rear direction. The lower side step portion 16 extends continuously in the front-rear direction from a position adjacent to the lower side of the second base insertion portion 14 to the tip portion (rear end portion) of the insertion rod.

[0114] The lower side step portion 16 has a step side wall surface formed vertically along the lower surface of the insert body portion 11 via a bend, and a step bottom surface formed horizontally. The step bottom surface is connected to the upper end of the step side wall surface via the bend. By providing such a lower side step portion 16 on the insert 10, the insert 10 of this embodiment 1 can be used, for example, as a right-hand type open / close insert that can be operated by the user's right hand, thus improving the versatility of the insert 10.

[0115] The engaging recess 17 of the insert rod 10 corresponds to the engaging protrusion 22 of the base rod 20 (described later) and is formed in the central portion of the insert rod 10 in the vertical direction, and is formed in a recessed manner from the inner sidewall surface of the insert rod 10 toward the outer side in the horizontal direction. When the insert rod 10 is inserted and received in the receiving space 32 of the base body 30, the engaging protrusion 22 of the base rod 20 is inserted into the engaging recess 17 of the insert rod 10. As a result, the insert rod 10 can be easily positioned relative to the base rod 20 and the base body 30.

[0116] The tooth protrusion 18 of the insert bar 10 protrudes inward from the insert bar body 11 in the left-right direction at the base end of the insert bar. The tooth protrusion 18 is disposed in the center of the insert bar 10 in the vertical direction. When the first base end insertion portion 12 and the second base end insertion portion 14 of the insert bar 10 engage with the adjacent tooth of the seat bar of the second zipper tooth belt, the tooth protrusion 18 of the insert bar 10 is inserted into the insertion recess provided at the engagement head of the adjacent tooth of the seat bar.

[0117] The base bar 20 and base body 30 forming the zipper insert 1 of this embodiment 1 are fixed to the zipper tape by injection molding of synthetic resin onto the zipper tape of the second zipper tooth chain tape. The base bar 20 and base body 30 are integrally formed together. The base bar 20 and base body 30 are fixed to the side edge of the zipper tape across the upper and lower surfaces of the tape. The base bar 20 is arranged adjacent to the rear end of the chain tooth row in the second zipper tooth chain tape and is continuous with the chain tooth row.

[0118] The zipper bar 20 is configured such that, when the insert bar 10 is inserted and housed in the receiving space 32 of the zipper body 30, the base end of the zipper bar 20 near the zipper teeth is positioned in the front-rear direction at a position further rearward (closer to the zipper body 30) than the base end of the insert bar 10 housed in the zipper body 30. The zipper bar 20 has: a zipper bar body 21 fixed to the zipper tape; and an engaging protrusion 22 protruding from the zipper bar body 21 toward the inner side in the left-right direction.

[0119] The main body 21 of the base rod has a generally rectangular shape that is longer in the front-to-back direction. A pin recess 23 is provided in both the upper and lower halves of the main body 21, and each recess is recessed from the upper or lower surface of the base rod 20. Similar to the pin recess 11c of the insert rod 10, the pin recesses 23 provided on the upper and lower halves of the base rod 20 are pin indentations formed during injection molding of the base rod 20.

[0120] The engaging protrusion 22 of the base rod 20 protrudes in a roughly triangular shape from the inner side of the base rod body 21 toward the inner side in the left-right direction. The engaging protrusion 22 is formed with a thickness that allows it to be inserted into the engaging recess 17 provided in the insert rod 10.

[0121] The seat body 30 includes: a main body portion 31 integrally formed with the top end portion of the seat bar 20; and a receiving space portion 32 and an auxiliary space portion 33 formed on the main body portion 31. The main body portion 31 has a generally cuboid shape in which the length dimension (length in the front-to-back direction) is larger than the width dimension. The main body portion 31 is formed in such a way that its width dimension and thickness dimension (length in the vertical direction) are larger than the width dimension and thickness dimension (length in the vertical direction) of the seat bar main body portion 21, and a step is formed between the seat bar main body portion 21 and the main body portion 31 so that the pull head 40 can abut.

[0122] The receiving space 32 of the base 30 is provided in such a way that it can accommodate and hold a portion of the insert 10 and extends straight from the front to the rear of the base body 31. For example, in this embodiment 1, the receiving space 32 is formed along the front-rear direction, and is also formed in such a way that it can accommodate a portion of the insert 10 that is more than 1 / 3 of its length in the front-rear direction measured from the tip of the insert.

[0123] The auxiliary space portion 33 of the seat body 30 is formed from the rear of the main body portion 31 towards the front, and communicates with the receiving space portion 32. The area of ​​the cross section of the auxiliary space portion 33 orthogonal to the front-back direction is smaller than the area of ​​the cross section of the receiving space portion 32.

[0124] Next, while referring to Figures 7-9 The operation of engaging the zipper teeth of the first zipper tooth belt and the second zipper tooth belt, which are separated from each other, by using the opening and closing insert 1 of this embodiment 1, which is formed as a left insertion type in a positive opening type, will be described.

[0125] First, hold the pull tab (not shown) of the pull head 40 and pull it. Thus, as... Figure 7 As shown, the slider 40 is slid towards the sliding rear end position that abuts against the seat 30, and then stops at that sliding rear end position. Figure 6As shown, in this embodiment 1, the slider 40 is equipped with a stop claw body 50. Therefore, when the slider 40 is stopped at the sliding rear end position and the operation of the slider is completed, the elastic force of the elastic force application part 53 of the stop claw body 50 can be used to automatically protrude the claw part 52 of the stop claw body 50 into the chain tooth guide path of the slider body 41 (see reference). Figure 7 ).

[0126] After holding the zipper head 40 in contact with the base 30, insert the push bar 10 of the release insert 1 from the shoulder opening on the right side of the zipper head 40 through the chain guide path of the zipper head 40 toward the receiving space 32 of the base 30.

[0127] In the opening and closing insert 1 of this embodiment 1, when the insert 10 is inserted toward the receiving space 32 of the base 30, the tip of the insert 10 approaches the claw 52 protruding into the chain tooth guide path of the pull head body 41, and further as... Figure 9 As shown, by moving the insertion rod 10 backward beyond the position of the claw 52, ​​the insertion rod 10 is inserted into the receiving space 32 of the base 30.

[0128] At this time, for the claw portion 52 of the stopping claw body 50, as Figure 8 As shown, the claw 52 is partially inserted into the space formed in the upper side step 15 of the insert rod 10. Moreover, the claw 52 inserted into the space of the upper side step 15 moves relative to the insert rod 10 moving rearward, passing through the space of the upper side step 15 and moving towards the insert base end of the insert rod 10.

[0129] Furthermore, in this case, at a position at least halfway along the front-rear direction near the tip of the insert 10, the claw 52 passes through the space of the upper side step 15 with the claw 52 raised from the bottom surface 15b of the upper side step 15 (in other words, with a gap formed between the claw 52 and the bottom surface 15b of the upper side step 15). Therefore, when inserting the insert 10, it is less likely for the insert 10 to come into contact with the claw 52 of the stop claw body 50, thus allowing for a quick and smooth insertion operation of the insert 10.

[0130] Furthermore, in this embodiment 1, as described above, the claw portion 52 of the stop claw body 50 is configured to move slightly in the left-right direction within the chain tooth guide path of the zipper head body 41. For example, when the claw portion 52 of the stop claw body 50 is held at the right end of its movable range within the chain tooth guide path, such as... Figure 7 As shown, when the insert rod 10 is inserted into the pull head 40, the claw 52 can be inserted into the space of the upper side step portion 15 at or near the tip of the insert rod 10. Furthermore, the claw 52 can then be moved along the upper side step portion 15 toward the base end of the insert rod 10.

[0131] On the other hand, when the claw portion 52 of the stop claw body 50 is held at the left end of the movable range within the chain tooth guide path, when the insert bar 10 is inserted into the pull head 40, the claw portion 52 can be inserted into the space of the upper side step portion 15 at a position forward of the insert bar tip portion of the insert bar 10, and the claw portion 52 can be moved along the upper side step portion 15.

[0132] That is, in the insert bar 10 of this embodiment 1, as described above, the upper side step portion 15 is formed to extend continuously from the claw through passage 13 to the top of the insert bar in the front-rear direction. Therefore, even if the claw portion 52 of the stop claw body 50 is configured to move left and right within the chain tooth guide path, the claw portion 52 of the pull head 40 can be stably inserted into the space of the upper side step portion 15 when the insert bar 10 is inserted into the pull head 40. Thus, the insertion operation of the insert bar 10 can be performed smoothly and stably without the insert bar 10 coming into contact with the claw portion 52.

[0133] Next, by moving the insertion rod 10 further rearward, as... Figure 1 As shown, the claw 52, ​​inserted into the space of the upper side step portion 15, moves into the width-increasing portion 15c or the claw-through passage 13 of the upper side step portion 15 in the insert rod 10. At this time, the width-increasing portion 15c of the upper side step portion 15 is formed with an increased width dimension W1 of the step bottom surface 15b compared to the width-constant portion of the upper side step portion 15, and also has a thickened inclined surface 15d that slopes forward. As a result, the claw 52 of the stop claw body 50 can be moved stably to the width-increasing portion 15c of the upper side step portion 15 or the claw-through passage 13, and the claw 52 of the stop claw body 50 is held in contact with the step bottom surface 15b of the upper side step portion 15 or the passage bottom surface 13a of the claw-through passage 13.

[0134] After the insert bar 10 is properly housed and held in the receiving space 32 of the seat 30, the zipper head 40, which is in contact with the seat 30, is slid forward (away from the seat 30). This allows the left and right zipper teeth to engage sequentially from the rear side.

[0135] Furthermore, in the opening and closing insert 1 of this embodiment, when the sliding of the pull head 40 begins as described above, the claw portion 52 of the pull head 40 is held on the width increasing portion 15c of the upper side step portion 15 of the insert bar 10 or the bottom surface 13a of the claw penetration passage 13. Therefore, by sliding the pull head 40 away from the seat body 30, the claw portion 52 of the pull head 40 moves forward relative to the insert bar 10 from the width increasing portion 15c of the insert bar 10 or the claw penetration passage 13.

[0136] At this time, a claw-through passage 13 is provided at the base end of the insertion rod 10 between the insertion rod body 11 and the first base insertion portion 12. The bottom surface 13a of the claw-through passage 13 is arranged in the vertical direction to be lower than the upper surface 11a of the insertion rod body 11 and the upper surface of the first base insertion portion 12. Moreover, the upper surface of the first base insertion portion 12 is arranged in the vertical direction to be lower than the upper surface 11a of the insertion rod body 11, and is formed continuously with the bottom surface 15b of the step of the upper side step portion 15.

[0137] Therefore, when the slider 40 slides forward, even if the claw portion 52 of the stop claw 50 protrudes into the chain tooth guide path of the slider body 41, the claw portion 52 can still pass over at least one of the claw through-passage 13 at the base end of the insert rod and the first base end insertion portion 12, preferably passing over the claw through-passage 13 at the base end of the insert rod to move smoothly towards the front side of the insert rod 10. Thus, the claw portion 52 of the slider 40 will not hook onto the first base end insertion portion 12 of the insert rod 10, allowing the slider 40 to slide forward smoothly.

[0138] In particular, at this time, the claw portion 52 of the pull head 40 passes through the claw penetration passage 13, which is formed lower than the first base insertion portion 12 at the base end of the insert rod. Thus, even if the claw portion 52 of the pull head 40 is lifted significantly without overcoming the elastic force of the elastic force application portion 53 of the stopping claw body 50, the pull head 40 can be moved towards the front side of the insert rod 10. Therefore, the sliding of the pull head 40 can be started more easily.

[0139] Then, by sliding the zipper head 40 along the left and right chain teeth until it contacts the stop member adjacent to the front end of the same chain teeth, the left and right chain teeth can be engaged in the entire front-back direction, thereby closing the zipper.

[0140] Next, the case where the left and right zipper teeth are separated from the engaged state to pull apart the first and second zipper teeth straps will be described. In this case, firstly, the zipper head 40 is moved along the left and right zipper teeth to the sliding rear end position that abuts against the base 30. This allows the left and right zipper teeth to be completely separated.

[0141] Next, the insert rod 10 is pulled in such a way that it disengages from the receiving space 32 of the base 30, causing the insert rod 10 to move forward relative to the base rod 20 and the base 30. As a result, the insert rod 10 is pulled out from the receiving space 32 of the base 30 via the guide path of the zipper 40. At this time, the claw 52 of the zipper 40 can pass through the space provided in the upper side step 15 of the insert rod 10 relative to the insert rod 10 and move towards the tip of the insert rod 10. Therefore, the insert rod 10 is not hooked on the claw 52, ​​and the insert rod 10 can be smoothly pulled out from the zipper 40.

[0142] Furthermore, by pulling the insert bar 10 out of the zipper pull 40, the insert bar 10 can be separated from the base bar 20 and the base body 30, thereby separating the first zipper tooth chain with the insert bar 10 from the second zipper tooth chain with the base bar 20 and the base body 30.

[0143] Furthermore, for example, when a zipper equipped with the opening and closing insert 1 of this embodiment is installed on clothing or other products, when the insert 10 is pulled out from the receiving space 32 of the base 30, as Figure 10 As shown, the zipper pull 40 is sometimes kept slightly separated from the seat 30.

[0144] In this case, the slider 40 is configured separately from the base 30, therefore, the contact points with, for example, the slider 40 and the base 30 are... Figure 1 Compared to the state shown, the claw 52 of the pull head 40 is held in a more forward position relative to the insert rod 10 in a way that prevents the insert rod 10 from moving in the pulling direction (see reference). Figure 10 and Figure 11 ).

[0145] In response to this situation, in this embodiment 1, the insert rod 10 has a guide inclined surface that slopes downward toward the front (near the zipper teeth) on the bottom surface 13a of the claw penetration passage 13 at the base end of the insert rod. By providing this guide inclined surface in the claw penetration passage 13, even if the claw portion 52 of the zipper head 40 is located further forward than the position of the width increase portion 15c of the upper side step portion 15, when the insert rod 10 is pulled out from the receiving space portion 32 of the seat body 30, the claw portion 52 of the zipper head 40 can be lifted by the guide inclined surface of the bottom surface 13a while passing through the claw penetration passage 13.

[0146] Therefore, according to the opening and closing insert 1 of this embodiment 1, when the insert 10 is pulled out from the base 30, even when the pull head 40 is kept in a position separated from the base 30, it is possible to prevent or suppress the claw portion 52 of the pull head 40 from hooking onto the insert 10 and pull out the insert 10 smoothly and stably.

[0147] As described above, in the opening / closing insert 1 of this embodiment 1, a pull head 40 formed for a right-insertion type opening / closing insert 1 can be used to form a left-insertion type opening / closing insert 1. This reduces the number of pull heads 40 that can be used for both right-insertion and left-insertion type opening / closing inserts 1, thus enabling cost reduction, increased productivity and manufacturing efficiency, and simplified quality and process management.

[0148] Furthermore, in the release insert 1 of this embodiment 1, a claw-through passage 13 is formed at the base end of the insert 10. This claw-through passage 13 has a bottom surface 13a that is lower than the upper surface 11a of the insert body 11. Therefore, even when a right-insertion type pull head 40 is used to form a left-insertion type release insert 1, when the pull head 40 is slid forward after inserting the insert 10, the claw portion 52 of the pull head 40 can pass through the claw-through passage 13 or the first base end insertion portion 12 (preferably, through the claw-through passage 13). Therefore, the claw portion 52 of the pull head 40 is less likely to snag on the insert 10. As a result, the pull head 40 can slide smoothly, thus improving the sliding and starting performance of the pull head 40.

[0149] Furthermore, in the opening and closing insert 1 of this embodiment 1, an upper side step portion 15 is provided on the inner side edge of the insert 10 in a continuous manner in the front-rear direction. Therefore, when the insert 10 is inserted into the receiving space portion 32 of the base 30 via the chain guide path of the zipper 40, as described above, the claw portion 52 of the zipper 40 can pass through the space portion of the upper side step portion 15 of the insert 10 and move relative to the insert base end of the insert 10. Therefore, the insert 10 can be smoothly and stably inserted into the receiving space portion 32 of the base 30 without the insert 10 coming into contact with the claw portion 52.

[0150] Furthermore, the opening / closing insert 1 in this embodiment 1 can also be replaced by a pull head, such as that described in Patent Document 1. Figure 6 The pull head 40 shown is formed for a right-insertion type. In Patent Document 1, the claw portion for the stopping mechanism of the pull head is integrally provided with the cover, and the cover is mounted in a manner that allows it to swing relative to the pull head body. In the following description, such a pull head will be referred to as a cover-movable pull head.

[0151] In the case where the movable pull head described in Patent Document 1 is formed as a pull head for a right-insertion type, for example, in Figure 1 As indicated by imaginary lines, the claw portion 52a of the movable zipper pull is formed to be larger than that of the zipper pull 40 of Embodiment 1 (especially the size of the cross section of the claw portion 52a orthogonal to the vertical direction). Furthermore, the claw portion 52a of the movable zipper pull is positioned further rearward and to the right than that of the zipper pull 40 of Embodiment 1.

[0152] In this invention, the insert rod 10, seat rod 20, and seat body 30 of Embodiment 1, along with a cover-movable pull head having the aforementioned claw portion 52a, can also be used to form a modified example of the opening and closing insert of Embodiment 1. Even with such a modified example of the opening and closing insert, a cover-movable pull head for right-insertion type can be used to form a left-insertion type opening and closing insert, thus reducing the types of pull heads that can be used for opening and closing inserts.

[0153] Furthermore, in this modified example of the detachable insert, when the insert bar 10 is received into the base 30, the claw portion 52a of the movable zipper pull is positioned on the upper surface 11a of the insert bar body 11 at a position biased towards the right side within the chain tooth guide path. Therefore, when the zipper pull is slid after the insert bar 10 is inserted, the claw portion 52a of the zipper pull does not interfere with the first base insertion portion 12 of the insert bar 10, allowing the zipper pull to slide smoothly.

[0154] Furthermore, in this invention, as shown in Embodiment 1 and its variations, by using the insert rod 10, the seat rod 20, and the seat body 30 of Embodiment 1, it is possible to use... Figure 6 The pull head 40 shown is used to form the release insert 1, and the cover movable type pull head described in the modified example can also be used to form the release insert. As a result, the versatility of the insert bar 10, the seat bar 20 and the seat body 30 can be improved, and thus, further cost reduction of the release insert can be achieved.

[0155]

Example 2

[0156] Figure 12 This is a schematic partial cross-sectional view of the open / closed insert in Embodiment 2. Figures 13-15 These are schematic top, side, and bottom views of the insert rod in Embodiment 2. Figure 16 and Figure 17 These are schematic top and side views of the base rod in Embodiment 2.

[0157] In this embodiment 2, the zipper is provided with a double-opening tail type opening and closing insert 2, which is located at the rear end of the zipper.

[0158] Furthermore, in the zipper of this embodiment 2, which is equipped with a double-ended insert 2, in the front-back direction, the direction in which the first zipper head 40a (described later) slides in the direction of closing the zipper is set to the front, and the direction in which the first zipper head 40a (described later) slides in the direction of opening the zipper is set to the rear.

[0159] The zipper of this embodiment 2 has: a pair of first zipper tooth strips (not shown) and second zipper tooth strips (not shown); a first zipper pull (front zipper pull) 40a and a second zipper pull (rear zipper pull) 40b, which can slide along the tooth rows provided in each zipper tooth strip; a stop member (not shown) which is disposed adjacent to the front end of the left and right tooth rows; and a insert bar 60 and a seat bar 70 which are disposed adjacent to the rear end of the left and right tooth rows.

[0160] The double-ended insert 2 of this embodiment 2 is formed by the zipper insert bar 60, the base bar 70, the first zipper pull 40a, and the second zipper pull 40b.

[0161] In this embodiment 2, the first zipper tooth strip, the second zipper tooth strip, and the stop member are formed substantially the same as those in embodiment 1.

[0162] In the zipper puller 2 of this embodiment 2, when viewed from above, a pusher 60 is provided on the first zipper tooth strip on the right side, and a seat bar 70 is provided on the second zipper tooth strip on the left side. Therefore, the zipper puller 2 of this embodiment 2 is formed as a left-insertion type zipper puller 2: when a zipper having this zipper puller 2 is installed, for example, on clothing, a person wearing the clothing operates the pusher 60 of the zipper puller 2 with their left hand.

[0163] The first zipper pull 40a and the second zipper pull 40b are formed substantially the same as the zipper pull 40 of Embodiment 1 described above. The first zipper pull 40a and the second zipper pull 40b are arranged such that their respective rear openings face each other toward the row of teeth mounted on the second zipper tooth belt.

[0164] In this case, compared to the second pull head 40b, the first pull head 40a is positioned away from the pull head stop portion 74, which will be described later, located on the base bar 70. In other words, compared to the first pull head 40a, the second pull head 40b is positioned closer to the pull head stop portion 74. That is, in this embodiment 2, the second pull head 40b is configured as a pull head that stops upon contact with the pull head stop portion 74 of the base bar 70, and the first pull head 40a is configured as another pull head that stops upon contact with the rear end of the second pull head 40b. Furthermore, in the first pull head 40a and the second pull head 40b of this embodiment 2, components and parts that are substantially the same as those in the pull head 40 of embodiment 1 are indicated by the same reference numerals as those in embodiment 1, and their detailed description is omitted.

[0165] The first pull head 40a and the second pull head 40b of this embodiment 2 can also be used for right-hand type open-close inserts that are operated with the right hand. In addition, when the first pull head 40a and the second pull head 40b are used for right-hand type open-close inserts, it is also possible to prevent or suppress the respective claws 52 from hooking onto the insert when the first pull head 40a and the second pull head 40b slide after the insert is inserted.

[0166] The insert 60 of the zipper puller 2 is formed by injection molding of synthetic resin into the zipper tape of the first zipper tooth belt. The insert 60 is arranged adjacent to the rear end of the tooth row in the first zipper tooth belt and continuous with the tooth row. The insert 60 has an upper half (first insert half) 60a disposed on the upper surface side of the zipper tape and a lower half (second insert half) 60b disposed on the lower surface side of the tape, with the center position in the thickness direction of the zipper tape as the dividing point.

[0167] The insert bar 60 includes: an insert bar body 61, which is mounted on the zipper tape; a first base insertion portion 62 and a claw through passage 63, which are provided at the base end of the insert bar in the upper half 60a; an upper side step portion 65 and a locking recess 67, which are provided on the inner side edge of the insert bar 60 opposite to the seat bar 70; a chain tooth protrusion 68, which protrudes inward in the left and right direction from the base end of the insert bar body 61; and an upper top inclined surface 69a, which is provided at the top end of the insert bar in the upper half 60a.

[0168] In addition, such as Figure 15 As shown, the lower half 60b of the insertion rod 60 is provided with: a second base end insertion portion 64 and a claw through passage 63, which are disposed at the base end of the insertion rod; a lower top inclined surface 69b, which is disposed at the top end of the insertion rod; a lower side step portion 66, which is disposed at the inner side edge of the insertion rod 60; and a first claw receiving recess 81, which is disposed at the center of the insertion rod body portion 61 in the length direction.

[0169] The insert body 61 is fixed to the zipper tape and has a shape that is longer in the front-to-back direction. The insert body 61 has an upper insert surface (first surface) 61a facing upward and a lower insert surface (second surface) 61b facing downward. The upper insert surface 61a of the insert body 61 is formed by a flat surface orthogonal to the vertical direction.

[0170] The lower surface 61b of the insert body 61 has a first lower surface formed by a flat surface orthogonal to the vertical direction and a second lower surface disposed on the rear side of the first lower surface. The first lower surface of the insert lower surface 61b extends from the base end of the insert to a position rearward of the center position of the insert 60 in the longitudinal direction. The second lower surface of the insert lower surface 61b is formed by an inclined surface that slopes in such a way that the thickness of the insert body 61 decreases rearward.

[0171] Two pin recesses 61c are provided on the upper half 60a and the lower half 60b of the insert body 61. Each recess has a shape that is recessed from the upper surface 61a or the lower surface 61b of the insert.

[0172] The first base insertion portion 62 is disposed on the innermost side in the left-right direction on the upper half 60a of the insert bar. In addition, it has a shape that protrudes forward relative to the claw through passage 63 so that it can engage with the adjacent chain teeth of the second zipper chain when the left and right chain teeth are engaged.

[0173] The upper surface of the first base insertion portion 62 is positioned lower than the upper surface 61a of the insertion rod body portion 61 in the vertical (thickness) direction. This improves the appearance and quality of the insertion rod 60. Furthermore, it provides a pleasant tactile experience when the user touches the insertion rod 60. Moreover, even if a strong external force is applied to the first base insertion portion 62, it is less prone to deformation.

[0174] The claw-through passage 63 of the upper half 60a of the insert rod is provided at the base end of the insert rod between the insert rod body 61 and the first base end insertion portion 62 in the left-right direction, in a front-back direction. The claw-through passage 63 has a passage bottom surface 63a and a pair of left and right passage sidewalls extending upward from the left and right side edges of the passage bottom surface 63a. The passage bottom surface 63a of the claw-through passage 63 is smoothly continuous with the step bottom surface 65b of the upper side step portion 65. The passage bottom surface 63a is positioned lower than the upper surface 61a of the insert rod body 61 in the vertical direction (thickness direction), and also lower than the upper surface of the first base end insertion portion 62. The leading edge of the claw-through passage 63 is located in the top view of the insert rod 60 ( Figure 13 It has a concave shape that curves backward.

[0175] The bottom surface 63a of the claw-through passage 63 has a guide inclined surface that slopes downward toward the front. This guide inclined surface is integrally provided throughout the front-rear direction of the bottom surface 63a. Thus, similar to Embodiment 1 described above, when the first pull head 40a is held slightly apart from the second pull head 40b, when the insert rod 60 is pulled out from the first pull head 40a and the second pull head 40b, the claw portion 52 can be lifted by the bottom surface 63a (guide inclined surface) of the claw-through passage 63, and therefore, the insert rod 60 can be pulled out smoothly.

[0176] The upper side step portion 65 of the insert rod 60 is positioned behind the first base insertion portion 62 and the claw through passage 63 of the upper half of the insert rod 60a, with a size that allows the claw portion 52 of the first pull head 40a to be inserted. The upper side step portion 65 is formed in the front-back direction within a range of less than 20% of the overall length dimension of the insert rod 60.

[0177] The upper side step portion 65 has a step side wall surface formed vertically along the upper surface 61a of the insert body portion 61 via a bend and a step bottom surface 65b formed horizontally. The step bottom surface 65b of the upper side step portion 65 is formed continuously with the upper surface of the first base insertion portion 62 and the bottom surface 63a of the claw through passage 63.

[0178] By providing such an upper side step portion 65, when the insert bar 60 is inserted into the chain tooth guide path of the first zipper 40a and the second zipper 40b, the claw portion 52 of the first zipper 40a can be inserted into the space formed by the upper side step portion 65 of the insert bar 60 and guided toward the claw through passage 63.

[0179] The upper side step portion 65 has a width-increasing portion 65c in which the width dimension of the step bottom surface 65b increases toward the base end of the insert rod. Additionally, the step bottom surface 65b of the upper side step portion 65 has a thickened inclined surface 65d that slopes upward toward the front or toward the first base end insertion portion 62 (see reference). Figure 14 By providing the thickened inclined surface 65d, the strength of the first base insertion portion 62 and its surrounding area can be improved.

[0180] The upper tip inclined surface 69a of the insert rod 60 is provided at the inner corner of the upper half 60a of the insert rod in the left-right direction. The upper tip inclined surface 69a is inclined in such a way that the thickness of the upper half 60a of the insert rod decreases rearward and inward in the left-right direction. By providing the upper tip inclined surface 69a on the insert rod 60, when the insert rod 60 is inserted into the chain tooth guide path of the first zipper 40a, the claw 52 of the first zipper 40a can contact the upper tip inclined surface 69a of the insert rod 60 and lift the claw 52 of the first zipper 40a.

[0181] The engaging recess 67 of the insert rod 60 and the engaging protrusion 72 of the seat rod 70 (described later) are formed in the central portion of the insert rod 60 in the vertical direction, and are formed in a recessed manner from the inner sidewall surface of the insert rod 60 toward the outer side in the horizontal direction. When the insert rod 60 is received in the first pull head 40a and the second pull head 40b, the engaging protrusion 72 of the seat rod 70 is inserted into the engaging recess 67.

[0182] The chain tooth protrusion 68 of the insert 60 protrudes from the insert body 61 in the left-right direction at the base end of the insert, and is also disposed in the center of the insert 60 in the up-down direction.

[0183] like Figure 15As shown, the second base end insertion portion 64, provided in the lower half 60b of the insert bar, is disposed on the inner side edge of the base end of the insert bar in the left-right direction. The second base end insertion portion 64 has a shape that can engage with the adjacent teeth of the seat bar of the second zipper tooth belt when the left and right chain teeth are engaged.

[0184] The claw-through passage 63 of the lower half 60b of the insert is provided between the main body 61 of the insert and the second base insertion part 64 in the left-right direction at the base end of the insert.

[0185] The lower side step portion 66 is located behind the second base insertion portion 64 and the claw through passage 63. The lower side step portion 66 has a step side wall surface formed in the vertical direction from the lower surface of the insertion rod body portion 61 via a bend and a step bottom surface 66b formed in the horizontal direction.

[0186] In the insert 60 of this embodiment 2, the lower surface of the second base insertion portion 64, the bottom surface 63a of the claw through passage 63, and the bottom surface 66b of the step of the lower side step portion 66 form a continuous single flat surface. In addition, in the vertical direction, it is positioned at a position lower than the lower surface 61b of the insert body portion 61 (close to the position of the zipper tape).

[0187] The lower top inclined surface 69b is provided at the inner corner of the lower half 60b of the insert rod in the left-right direction. The lower top inclined surface 69b is inclined in such a way that the thickness of the lower half 60b of the insert rod decreases towards the rear and towards the inner side in the left-right direction.

[0188] The first claw receiving recess 81 is formed by recessing from the lower surface 61b of the insert rod of the lower half 60b.

[0189] By providing the aforementioned claw through-passage 63, lower side step portion 66, lower side top inclined surface 69b, and first claw receiving recess 81 in the lower half 60b of the insertion rod 60, the insertion rod 60 of this embodiment 2 can be used not only for... Figure 12 The left-insertion type open-closed insert 2 shown can also be used as a right-insertion type open-closed insert where the insert bar 60 is operated with the right hand.

[0190] This improves the versatility of the insert 60 and reduces the manufacturing cost of the open-end insert. Furthermore, when using the insert 60 of this embodiment 2 for a right-insertion type open-end insert 2, it is necessary to... Figures 13-15 The insert bar 60 shown is configured with the zipper tape on the left side in a shape with opposite vertical orientation to the zipper teeth. In addition, in this case, the claw portion 52 of the second zipper head 40b can be received in the first claw receiving recess 81 of the insert bar 60, thereby preventing the second zipper head 40b from sliding.

[0191] The mounting bar 70 of the zipper insert 2 is formed by injection molding of synthetic resin into the zipper tape of the second zipper tooth belt. The mounting bar 70 is arranged so as to be adjacent to the rear end of the tooth row in the second zipper tooth belt and continuous with the tooth row. The mounting bar 70 has an upper half (first mounting bar half) 70a disposed on the upper surface side of the zipper tape and a lower half (second mounting bar half) 70b disposed on the lower surface side of the tape, with the center position in the thickness direction of the zipper tape as the dividing point.

[0192] The zipper bar 70 includes: a zipper bar body 71 fixed to the zipper belt; an engaging protrusion 72 protruding from the zipper bar body 71 toward the inside in the left-right direction; a zipper stop 74 disposed at the top end (rear end) of the zipper bar body 71; and a second claw receiving recess 82 and a third claw receiving recess 83 disposed on the upper half 70a of the zipper bar.

[0193] The main body 71 of the seat bar is fixed to the zipper tape and has an elongated shape in the front-to-back direction. The main body 71 has an upper surface (first surface) facing upwards and a lower surface (second surface) facing downwards. The upper and lower surfaces of the main body 71 are formed by flat surfaces orthogonal to the vertical direction (see reference). Figure 17 ).

[0194] Two pin recesses 73, each having a shape that is recessed from the upper or lower surface of the base rod, are provided on the upper half 70a and lower half 70b of the base rod body 71.

[0195] The slider stop portion 74 protrudes upward from the upper surface of the base bar body portion 71 in such a way that it can abut against the upper wing plate 42 of the second slider 40b. The slider stop portion 74 restricts the second slider 40b from sliding backward by abutting against the second slider 40b.

[0196] The second claw receiving recess 82 of the base bar 70 is formed in a recessed manner from the upper surface of the base bar body 71 in the approximately central portion of the base bar body 71 in the front-rear direction. The second claw receiving recess 82 opens at the inner side edge (inner side end face) of the base bar body 71. The claw portion 52 of the second pull head 40b is inserted into and received in the second claw receiving recess 82. As a result, the second pull head 40b can be kept from sliding and contacting the pull head stop portion 74.

[0197] The third claw receiving recess 83 of the base rod 70 is formed recessed from the upper surface of the base rod body 71 at a position on the base rod body 71 that is forward of the second claw receiving recess 82 and on the outer side in the left-right direction of the second claw receiving recess 82. Alternatively, in this invention, the base rod 70 may also be formed without the third claw receiving recess 83.

[0198] When using the opening insert 2 of this embodiment 2, which is formed as a left-insertion type with a double-tail design, to engage the teeth of the separated first and second zipper teeth, firstly, the second zipper head 40b is slid towards and held in contact with the zipper head stop 74. Secondly, the first zipper head 40a is slid towards and held in contact with the rear end of the second zipper head 40b.

[0199] Furthermore, after the first zipper pull 40a and the second zipper pull 40b are slid to their predetermined positions, the sliding operation performed by the pull tabs ends, thereby allowing the claws 52 of each of the first zipper pull 40a and the second zipper pull 40b to automatically protrude into the chain guide path. At this time, the claw 52 of the second zipper pull 40b inserts into and is received in the second claw receiving recess 82 of the base bar 70.

[0200] Next, the insert bar 60 of the release insert 2 is inserted into the chain guide path from the shoulder opening on the right side of the first zipper pull 40a. Due to this insertion, the tip of the insert bar 60 approaches the claw portion 52 protruding into the chain guide path of the first zipper pull 40a. Furthermore, the tip of the insert bar 60 moves rearward beyond the claw portion 52, thereby receiving the insert bar 60 across both the chain guide paths of the first zipper pull 40a and the second zipper pull 40b.

[0201] At this time, the claw portion 52 of the first pull head 40a contacts the upper end inclined surface 69a provided on the top end of the insertion rod 60, and is lifted up by being placed on the upper end inclined surface 69a. As a result, the claw portion 52 of the first pull head 40a can go beyond the top end of the insertion rod 60 that is inserted rearward.

[0202] Subsequently, the insert rod 60 moves further rearward, thereby inserting the claw portion 52 of the first pull head 40a into the space portion of the upper side step portion 65 provided on the insert rod 60 near the insert rod base end, moving into the width increasing portion 65c of the upper side step portion 65 or the claw penetration passage 63, and being held in contact with the bottom surface 65b of the step of the width increasing portion 65c or the bottom surface 63a of the passage of the claw penetration passage 63.

[0203] By moving the claw 52 of the first zipper 40a relative to the insert rod 60 as described above, when the insert rod 60 is inserted into the first zipper 40a and the second zipper 40b, the insert rod 60 is less likely to get caught on the claw 52 of the first zipper 40a, thus enabling the insertion operation of the insert rod 60 to be performed smoothly.

[0204] After the insert 60 is housed within the zipper tooth guide path of the first zipper head 40a and the second zipper head 40b, the first zipper head 40a is slid forward. This allows the left and right zipper teeth to engage sequentially from the rear, thus enabling the zipper to close.

[0205] Furthermore, when the claw portion 52 of the first pull head 40a moves forward relative to the insert rod 60 due to the sliding of the first pull head 40a, it can pass over at least one of the claw through-passage 63 and the first base insertion portion 62 of the insert rod 60, preferably over the claw through-passage 63 at the base end of the insert rod. Therefore, the claw portion 52 of the first pull head 40a is prevented from hooking onto the insert rod 60, allowing the first pull head 40a to slide smoothly.

[0206] On the other hand, when separating the left and right zipper teeth from the engaged state to pull apart the first and second zipper teeth, firstly, the first zipper head 40a is slid along the zipper teeth until it abuts against the second zipper head 40b. Next, by pulling out the insert 60 from the first zipper head 40a and the second zipper head 40b, the first zipper tooth with the insert 60 and the second zipper tooth with the base bar 70 can be pulled apart.

[0207] In addition, in the opening and closing insert 2 of this embodiment 2, for example, when the insert 60 is pulled out from the first pull head 40a and the second pull head 40b, since the first pull head 40a is held in a position slightly separated from the second pull head 40b, the claw portion 52 of the first pull head 40a is sometimes located in a position further forward than the upper side step portion 65.

[0208] To address this issue, in the insert 60 of this embodiment 2, a claw-through passage 63 with a guiding inclined surface is provided at the base end of the insert. Therefore, when the insert 60 is pulled out from the first pull head 40a and the second pull head 40b, similar to the case in Embodiment 1, the claw portion 52 of the first pull head 40a can pass through the claw-through passage 63 while being lifted by the guiding inclined surface of the claw-through passage 63. Thus, it is possible to prevent or suppress the claw portion 52 of the first pull head 40a from hooking onto the insert 60, allowing for smooth and stable removal of the insert 60.

[0209] As described above, in this embodiment 2, the first pull head 40a and the second pull head 40b, which are formed as right-insertion type for the opening and closing insert, can be used to form a double-tail type opening and closing insert 2 in the left-insertion type. As a result, the types of pull heads that can be used in the opening and closing insert 2 can be reduced.

[0210] Furthermore, in the opening and closing insert 2 of this embodiment 2, when the first pull head 40a slides forward after the insert bar 60 is inserted, the claw portion 52 of the first pull head 40a can pass through the claw through passage 63 or the first base insertion portion 62 (preferably, through the claw through passage 63). Therefore, the claw portion 52 of the first pull head 40a is less likely to snag on the insert bar 60. As a result, the pull head 40 can slide smoothly, thus improving the sliding and starting performance of the pull head 40.

[0211] Furthermore, in this embodiment 2, similarly to the case of embodiment 1 described above, the movable cover type zipper head described in Patent Document 1 can be used as the first zipper head and the second zipper head to form a double-opening tail type opening and closing insert.

[0212] In this case, for example in Figure 12 As shown by imaginary lines, the claw portion 52a of the first slider is placed on the upper surface 61a of the insert rod body 61. The claw portion 52a of the second slider is inserted into and received in the third claw receiving recess 83 of the base rod 70. Therefore, when the first slider is slid after the insert rod 60 is inserted, the claw portion 52a of the first slider does not interfere with the first base insertion portion 62 of the insert rod 60, allowing the first slider to slide smoothly.

[0213] Thus, even the double-tail type of release insert 2 in this embodiment 2, like in embodiment 1 above, can use two different pull heads with different stop mechanism structures as the first pull head 4 and the second pull head. Therefore, the versatility of the insert 60, the seat 70, and the seat 30 can be improved.

[0214] Furthermore, this utility model is not limited to the embodiments described above. Various modifications can be made as long as the structure is substantially the same as that of this utility model and achieves the same effect.

[0215] For example, in Embodiments 1 and 2 described above, the first base end insertion portions 12 and 62 and the second base end insertion portions 14 and 64 provided on the insert rods 10 and 60 have a shape that can engage with the adjacent chain teeth of the seat rods arranged adjacent to the seat rods 20 and 70. However, in this utility model, as long as the first base end insertion portions and the second base end insertion portions are formed to be insertable between the seat rods and the adjacent chain teeth of the seat rods, they can also be formed not to engage with the adjacent chain teeth of the seat rods (non-engaging).

[0216] Furthermore, the application of the zipper with the opening and closing insert of this utility model is not particularly limited.

Claims

1. A zipper opening / closing insert, comprising: an insert bar disposed on a first zipper tooth strip of the zipper; a seat bar disposed on a second zipper tooth strip of the zipper; and at least one zipper pull capable of inserting the insert bar and the seat bar, wherein when the left and right zipper teeth of the zipper are separated, the zipper opening / closing insert can pull the first zipper tooth strip and the second zipper tooth strip apart, characterized in that, The insert has a first insert half disposed on one side of the zipper in the thickness direction and a second insert half disposed on the other side of the thickness direction, and has a base end disposed on the side closer to the zipper teeth and a tip end disposed on the side away from the zipper teeth in the length direction of the zipper. The insert has: an insert body portion, which is mounted on the zipper tape of the first zipper tooth; and a base insertion portion and a claw through passage, which are disposed at the base end portion of the first insert half. The base insertion portion is configured to be inserted between the seat bar and the zipper tooth adjacent to the seat bar in the second zipper tooth belt. The claw-through passage is disposed between the main body of the insert rod and the base insertion portion, and is configured to allow partial passage of the stop claw body provided on the pull head. The bottom surface of the claw-through passage is positioned in the thickness direction at a lower position than the first surface of the insert body that faces the thickness direction.

2. The open / closed insert according to claim 1, characterized in that, The bottom surface of the claw-through passage is configured in the thickness direction to be lower than the first surface of the base insertion portion facing the thickness direction.

3. The open / closed insert according to claim 1, characterized in that, The bottom surface of the claw-through passage has a guide slope that slopes downward toward the zipper teeth of the first zipper tooth belt.

4. The open / closed insert according to claim 1, characterized in that, The base insertion portion is configured as the first base insertion portion. A second base end insertion portion is provided at the base end of the second insert half, and the second base end insertion portion is configured to be inserted between the base bar and the zipper tooth adjacent to the base bar. The maximum thickness of the first base insertion portion is smaller than the maximum thickness of the second base insertion portion.

5. The open / closed insert according to claim 1, characterized in that, At least a portion of the opposite side edge of the insert rod, which is opposite to the seat rod, is provided with a side step portion that allows partial insertion of the stop claw body. The side step portion has a step side wall formed from the first surface of the insert body portion via a bending portion and a step bottom surface connected to the lower end of the step side wall.

6. The open / closed insert according to claim 5, characterized in that, The first surface of the base insertion portion facing the thickness direction forms a smooth, continuous, flat surface with the bottom surface of the step of the side step portion. The bottom surface of the step has a thickened inclined surface that slopes upward toward the first surface of the base insertion portion.

7. The open / closed insert according to claim 5, characterized in that, The side step portion has a width-increasing portion that increases in width towards the base end of the insert rod, thereby increasing the width dimension of the bottom surface of the step.

8. The open / closed insert according to claim 5, characterized in that, The side step portion is continuously provided from the claw through-passage to the top of the insert in the longitudinal direction.

9. The open / closed insert according to claim 1, characterized in that, The insert is provided with a base, which is integrally formed with the base rod, and has a receiving space for accommodating a portion of the insert rod. The claw portion, which is part of the stop claw body, is configured in the width direction of the zipper body of the zipper head in such a way that it can be inserted into and removed relative to the zipper tooth guide path of the zipper body. It is located on one side of the zipper head body, offset from the center position of the zipper head body in the width direction. When the pull head is in contact with the seat, the claw portion is held in the claw through passage or the side step portion in contact with the bottom surface of the claw through passage of the insert or the bottom surface of the side step portion provided on the opposite side edge of the insert.

10. The open / closed insert according to claim 1, characterized in that, The two zipper pulls are mounted on the second zipper chain with their rear openings facing each other. The lever has: a pull-head stop portion that abuts against one of the pull heads to stop the pull head; and a receiving recess disposed on one side of the lever in the thickness direction, for partial insertion of a stop claw body in one of the pull heads to receive a portion of the stop claw body. The receiving recess opens at the opposite side edge of the seat rod, which is opposite to the insert rod. The claw portion, which is part of the stop claw body, is configured in the width direction of the zipper body of the zipper head in such a way that it can be inserted into and removed relative to the zipper tooth guide path of the zipper body. It is located on one side of the zipper head body, offset from the center position of the zipper head body in the width direction. When one of the pull heads is in contact with the pull head stop portion of the base bar and the other pull head is in contact with the pull head of the first pull head, the claw portion of the other pull head remains in the claw through passage or the side step portion in contact with the bottom surface of the claw through passage of the insert bar or the bottom surface of the side step portion provided on the opposite side edge of the insert bar.

11. The open / closed insert according to claim 10, characterized in that, The insert has a apex inclined surface at the corner of the top end of the insert on the side opposite to the base. The tip of the insert is inclined so that the thickness of the insert decreases in both the length and width directions.

Images