Separating insert

Abstract

The utility model provides a separating embedding-inserting piece which can prevent or restrain mutual connection of zipper tooth chain belts which do not correspond to each other. The separated embedded plug-in comprises a plug rod (20), a seat rod (30) and a socket body (40), the seat rod (30) protrudes forwards from the socket body (40), and the socket body (40) is provided with an accommodating space part (41) which can be used for accommodating a part of the plug rod (20) to be inserted and accommodating a part of the plug rod (20). The housing space (41) has a shape that is asymmetric in the front-back direction when a cross-section of the socket body (40) that is orthogonal to the front-back direction is viewed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of separating inserts for zipper. BACKGROUND

[0002] In the past zipper, there is a case of setting separating inserts. By separating inserts, left and right zipper tapes can be separated from each other when the slider is slid to completely separate the left and right rows of teeth.

[0003] For example, a separating insert is described in WO2021 / 090494, a fitting protrusion is provided at the top end of the insertion rod of the separating insert, and a fitting recess is provided on the inner wall surface of the insertion rod housing portion (space portion) of the socket body. Such a separating insert having a fitting protrusion and a fitting recess can improve the strength against the lateral pulling force (lateral pulling strength) when the insertion rod and the socket rod are separated from each other by being pulled toward the outside in the width direction.

[0004] For example, in a car seat provided in the interior of a car, in order to easily fit the seat cover onto the car seat, a zipper is installed on the seat cover. In recent years, there are cases where the seat cover for a car is formed so that a part of the seat cover can be replaced according to the user's preference, etc.

[0005] In general, by providing a separating insert in a zipper, it is easy to connect or separate the left and right zipper tapes that have been separated. Therefore, by using a zipper provided with a separating insert in a seat cover, the replacement work of the seat cover can be easily performed.

[0006] On the other hand, various zippers have been used for replaceable seat covers. However, for example, there are cases where the shape and size of the zipper teeth differ from each other in zippers of different manufacturers.

[0007] As a result, when replacing a seat cover as described above, for example, the zipper tapes installed on the seat cover and the zipper tapes installed on the replacement seat cover do not correspond to each other due to differences in the shape and / or size of the zipper teeth, etc., which makes the sliding operation of the slider that opens and closes the zipper heavy (in other words, a large force is required for each operation) or the zipper teeth cannot be engaged. SUMMARY

[0008] The utility model is completed in view of the above problems, and aims to provide a separating insert that can prevent or inhibit the mutual connection of zipper tapes that do not correspond to each other when combining the separated zipper tapes to close the zipper.

[0009] In order to achieve the above object, the utility model provides a separate embedded plug, it includes: the plug stick is arranged in the first zipper chain belt of zipper, and the seat stick and the socket body are arranged in the second zipper chain belt of the zipper, when separating the left and right zipper chain in the zipper, the first zipper chain belt and the second zipper chain belt can be separated from each other, in the separate embedded plug for the zipper, the seat stick protrudes from the socket body towards the front, the socket body has the accommodation space part that can insert and accommodate the part of the plug stick, when observing the section of the socket body and the front and back direction is orthogonal, the accommodation space part has the shape that is asymmetric in the table back direction.

[0010] In the separate embedded plug of the utility model, preferably, when observing the section of the socket body, the accommodation space part includes: the first space part arranged in one side of the table back direction, and the second space part arranged in the other side of the table back direction in a manner of communicating with the first space part, the width direction size of the second space part is smaller than the width direction size of the first space part.

[0011] In addition, preferably, the accommodation space part has the shape that is substantially L-shaped when observing the section of the socket body.

[0012] Furthermore, preferably, when observing the section of the socket body, the socket body includes: the socket body main part fixed to the zipper belt of the second zipper chain belt, the pair of shell parts extending along the width direction from the socket body main part and arranged on the table side and the back side of the accommodation space part, the side wall part arranged between the top end parts of the pair of shell parts, and the space limiting part protruding from the socket body main part along the width direction between the pair of shell parts and protruding from one shell part of the pair of shell parts towards the other shell part.

[0013] In the utility model, preferably, the zipper belt of the first zipper chain belt is fixed to the plug stick at the position deviated to one side of the table back direction, and the zipper belt of the second zipper chain belt is fixed to the seat stick and the socket body at the position deviated to one side of the table back direction.

[0014] In addition, preferably, the seat stick includes: the seat stick main part fixed to the zipper belt of the second zipper chain belt, and the guide part extending along the width direction from the seat stick main part, and the size of the table back direction is smaller than the seat stick main part, the plug stick includes: the plug stick main part fixed to the zipper belt of the first zipper chain belt, and the insertion recess part arranged on the side edge part opposite to the seat stick of the plug stick main part in a manner that the guide part can be inserted.

[0015] In this case, it is preferable that the socket rod has a socket rod engaging portion that engages with the plug rod when the plug rod is housed in the housing space portion of the socket body, the socket rod engaging portion being provided to the guide portion, the plug rod has a plug rod engaging portion that engages with the socket rod engaging portion, the plug rod engaging portion being provided to a step portion disposed between the outer surface of the plug rod body portion and the bottom surface of the insertion recess portion.

[0016] Utility model effect

[0017] According to the separation and insertion piece of the present application, it is possible to prevent or inhibit the mutual connection of the zipper tapes that do not correspond to each other when the separated zipper tapes are combined to close the zipper. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a plan view schematically showing a separation and insertion piece according to an embodiment of the present application.

[0019] Figure 2 is a cross-sectional view schematically showing a cross section on the line II-II shown in Figure 1

[0020] Figure 3 is a plan view schematically showing a plug rod of the separation and insertion piece shown in Figure 1

[0021] Figure 4 is a plan view schematically showing a socket rod and a socket body of the separation and insertion piece shown in Figure 1

[0022] Figure 5 is a cross-sectional view schematically showing a cross section on the line V-V shown in Figure 4

[0023] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0024] 5 zipper tape 6 transverse tension

[0025] 7 force to rotate it in the clockwise direction 10 separation and insertion piece

[0026] 20 plug rod 21 plug rod body portion

[0027] 21a upper surface (front surface) 21b lower surface (back surface)

[0028] 22 first plug rod body portion 23 second plug rod body portion

[0029] 24 first step portion 25 top end inclined portion

[0030] 26 insertion recess portion 26a recess bottom surface​​​​

[0031] 26b Second step section 27 Insert rod engagement section

[0032] 27a Engaging protrusion (engaging protrusion on the insert rod side) 27b Engaging recess (engaging recess on the insert rod side)

[0033] 28 Protrusion 29 Engaging protrusion

[0034] 29a Chain tooth receiving section 30 Seat bar

[0035] 31. Socket step section; 32. Main body of the base rod.

[0036] 33 Guiding Section 34 Base Containment Section

[0037] 35. Seat rod engaging part 35a Engaging protrusion (seat rod side engaging protrusion)

[0038] 35b Engaging recess (engaging recess on the side of the base bar) 36 Imaginary baseline

[0039] 40 Socket body 41 Reception space section

[0040] 41a First Space Section 41b Second Space Section

[0041] 42 Socket body main body 43 Side shell part

[0042] 44 Dorsal shell portion 45 Side wall portion

[0043] 45a Interlacing gap 46 Space restriction section

[0044] 46a First wall surface (transverse wall surface) 46b Second wall surface (longitudinal wall surface)

[0045] 47. The centerline in the vertical direction of the gap between the front and back shell sections. Detailed Implementation

[0046] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0047] Figure 1 This is a schematic top view of the separate insert 10 involved in this embodiment. Figure 2 It is a schematic representation Figure 1 A sectional view of the section along line II-II shown. Figure 3 This is a schematic top view showing the insert rod 20 of the separate insert 10. Figure 4 This is a schematic top view showing the seat bar 30 and socket body 40 of the separate insert 10.

[0048] In the following description of the separation and insertion member 10, the front-rear direction is along the length direction of the left and right slide fastener tapes, and along the sliding direction of the slider. In this case, with respect to the front-rear direction, the direction in which the slider is slid to close the slide fastener is set as the front direction, and the direction in which the slider is slid to open the slide fastener is set as the rear direction.

[0049] The left-right direction is along the direction in which the insertion rod 20 and the seating rod 30 approach or move away from each other. The left-right direction can also be referred to as the width direction of the separation and insertion member 10 and the slide fastener tape 5. In this case, with respect to the left-right direction, the direction in which the insertion rod 20 and the seating rod 30 approach each other is set as the inner side of the left-right direction, and the direction in which the insertion rod 20 and the seating rod 30 move away from each other is set as the outer side of the left-right direction.

[0050] The up-down direction is a direction orthogonal to the above-described front-rear direction and left-right direction. In addition, the up-down direction can also be referred to as the front-back direction of the separation and insertion member 10 or the thickness direction of the slide fastener tape 5. In this case, the direction of the side on which the portion of the seating rod 30 (the guide portion 33 described later) overlapping the insertion rod 20 is disposed with respect to the insertion rod 20 in a state in which the insertion rod 20 of the separation and insertion member 10 is accommodated in the accommodation space of the socket body 40 is set as the upper side, and the direction of the opposite side thereof is set as the lower side.

[0051] In addition, in the case of the separation and insertion member 10 of the present embodiment, the front-rear direction is Figure 1 the up-down direction in the paper surface. The left-right direction is Figure 1 the left-right direction in the paper surface. The up-down direction is Figure 1 the front-back direction in the paper surface, and is Figure 2 the up-down direction in the paper surface. In addition, in Figure 1 the up direction is Figure 1 the direction of the front side in the paper surface, and the down direction is Figure 1 the direction of the depth side in the paper surface. In Figure 2 the up direction is Figure 2 the direction of the lower side in the paper surface, and the down direction is Figure 2 the direction of the upper side in the paper surface.

[0052] The slide fastener of the present embodiment includes: a left and right pair of first slide fastener tapes (not shown) and second slide fastener tapes (not shown); a slider (not shown) that is capable of sliding along the fastener chain of each slide fastener tape; a stop member (not shown) disposed adjacent to the front end portions of the left and right fastener chains; and the separation and insertion member 10 disposed adjacent to the rear end portions of the left and right fastener chains. As Figure 1 shown, the separation and insertion member 10 includes: the insertion rod 20 provided to the first slide fastener tape; and the seating rod 30 and the socket body 40 provided to the second slide fastener tape.

[0053] In the fastener of the present embodiment, the first fastener tape having the insertion rod 20 is disposed on the right side with respect to the second fastener tape. That is, the second fastener tape is disposed on the left side with respect to the first fastener tape. Further, in the present embodiment, the separation fitting can also be formed in a manner that the insertion rod 20 is disposed in the fastener tape on the left side and the seating rod 30 and the socket body 40 are disposed in the fastener tape on the right side, and the insertion rod 20 and the seating rod 30 and the socket body 40 are disposed in opposite directions in the left-right direction in the separation fitting 10 of the present embodiment.

[0054] The first fastener tape and the second fastener tape each include a fastener tape 5 formed in a long strip shape and a plurality of fastener elements (not shown) fixed to the fastener tape 5. Each fastener tape 5 has a weave of a plurality of warp yarns and weft yarns. Each fastener tape 5 includes a tape main body portion and an element mounting portion extending from the tape main body portion toward the inner side in the left-right direction.

[0055] The plurality of fastener elements are formed in a continuous shape by being formed in a manner that a monofilament made of a thermoplastic resin is wound in a spiral shape. The spiral-shaped fastener elements are sewn to the element mounting portion of the fastener tape 5 in the front-back direction by a double loop stitch of a sewing thread in a state that a core rope is inserted inside each fastener element. In the present embodiment, the plurality of fastener elements are mounted to the tape surface (upper tape surface) of the fastener tape 5.

[0056] The plurality of fastener elements in a continuous shape are sewn to the fastener tape 5 at a certain interval, thereby forming an element row. Further, in the present embodiment, the fastener tape 5 and the fastener element are not particularly limited and can be changed according to the purpose of use of the fastener and the like.

[0057] The puller of the present embodiment has substantially the same configuration as the puller generally used in the conventional fastener provided with spiral-shaped fastener elements. Specifically, the puller of the present embodiment can lock the fastener by engaging the left and right element rows by sliding the puller in a direction away from the socket body 40 of the separation fitting 10, and can open the fastener by separating the left and right element rows by sliding the puller in a direction close to the socket body 40.

[0058] The puller includes a puller main body and a pull tab mounted and held to the puller main body. The puller main body includes an upper wing plate, a lower wing plate disposed in a separated manner from the upper wing plate, a link column linking between the front end portions (shoulder port side end portions) of the upper wing plate and the lower wing plate, a flange portion disposed to the left and right side edge portions of the upper wing plate, and a pull tab mounting column provided to the upper surface of the upper wing plate.

[0059] Left and right shoulder openings are formed at the front end of the zipper pull body, with the connecting post sandwiched in the middle. A rear opening is formed at the rear end of the zipper pull body. A roughly Y-shaped zipper tooth guide path is formed between the upper and lower flanges, connecting the left and right shoulder openings and the rear opening. An insertion gap is formed between the left and right flanges in the zipper pull body and the lower flange for the zipper tape 5 to pass through.

[0060] The zipper stop components are respectively provided on the first zipper tooth strip and the second zipper tooth strip, adjacent to the front end of the zipper tooth row. By providing the stop components, the front sliding limit position of the zipper head is set, and the zipper head is prevented from falling off from the front side of the zipper tooth row.

[0061] Furthermore, in this invention, the zipper pull and the stop component are not particularly limited and can be changed according to the purpose of the zipper, etc.

[0062] The detachable insert 10 of this embodiment includes: an insert bar 20 disposed on the right side of a first zipper tooth strip; and a base bar 30 and a socket body 40 disposed on the left side of a second zipper tooth strip. Therefore, the detachable insert 10 of this embodiment is a left-insertion type detachable insert 10, so that when a zipper with the detachable insert 10 is, for example, attached to clothing, the person wearing the clothing operates the insert bar 20 of the detachable insert 10 with their left hand. In this left-insertion type detachable insert 10, the zipper pull is mounted on the teeth row of the second zipper tooth strip on the left side, where the base bar 30 and the socket body 40 are located.

[0063] The insert bar 20 of the separate insert 10 is formed to be inserted through the zipper tooth guide path of the zipper head and housed in the receiving space 41 of the socket body 40 (described later). The insert bar 20 is formed by injection molding of the zipper strip 5 of the first zipper tooth strip with synthetic resin. The insert bar 20 is adjacent to the rear end of the zipper tooth row of the first zipper tooth strip and is arranged in a continuous manner with the zipper tooth row.

[0064] like Figure 3 As shown, in this embodiment, the insert 20 is fixed to the side edge of the zipper tape 5, spanning both the surface and back of the tape. In this embodiment, the zipper tape 5 is fixed to the insert 20 in a vertical direction, extending straight along the front-back direction, at a position slightly lower (back side) relative to the insert 20. In other words, the zipper tape 5 is fixed to the insert 20 at a position closer to the lower surface (or lower end) of the insert 20 than its upper surface (or upper end position).

[0065] The plug 20 includes a plug main body portion 21 mounted to the slide fastener tape 5, a protruding portion 28 protruding from the plug main body portion 21 toward the inner side in the left-right direction, and an engagement protrusion portion 29 protruding forward from the protruding portion 28. The plug main body portion 21 includes an insertion recess portion 26 provided to the inner side edge portion of the plug main body portion 21, and a plug engagement portion 27 engaged with a later-described socket engagement portion 35 of the socket 30.

[0066] Here, the inner side edge portion of the plug main body portion 21 is an edge portion disposed on the side of the plug main body portion 21 facing the socket 30, that is, the inner side in the left-right direction. The plug 20 of the present embodiment includes a base end portion disposed on the side of the plug 20 close to the slide fastener elements in the front-rear direction, and a tip end portion disposed on the side of the plug 20 away from the slide fastener elements.

[0067] The plug main body portion 21 is formed in an elongated rod shape extending straight along the front-rear direction. The plug main body portion 21 has at least an upper surface (front surface) 21a and a lower surface (back surface) 21b orthogonal to the up-down direction as outer surfaces of the plug main body portion 21. The lower surface 21b of the plug main body portion 21 is formed in a flat plane.

[0068] In a plan view of the plug 20 viewed from the upper side, Figure 3 ) the tip end portion of the plug main body portion 21 has a shape in which the dimension in the left-right direction (hereinafter referred to as the width dimension) gradually decreases as it goes toward the rear. In this case, in the plan view of the plug 20, the outer side edge of the tip end portion is formed straight or substantially straight along the front-rear direction, and the inner side edge of the tip end portion is formed inclined with respect to the front-rear direction.

[0069] The plug main body portion 21 includes a first plug main body portion 22 formed in a range of the plug main body portion 21 including the base end portion (front end portion), a second plug main body portion 23 formed in a range of the plug main body portion 21 including the tip end portion (rear end portion), and a first step portion 24 disposed between the first plug main body portion 22 and the second plug main body portion 23. The second plug main body portion 23 is a portion inserted and housed in the housing space portion 41 of the socket body 40, and the thickness dimension thereof is formed smaller than the first plug main body portion 22 (the dimension in the up-down direction) via the first step portion 24. A tip end inclined portion 25 is provided to the tip end portion of the plug main body portion 21 (the tip end portion of the second plug main body portion 23), which makes the thickness dimension of the plug main body portion 21 gradually decrease as it goes toward the tip end (rear end).

[0070] An insertion recess 26 is formed in the inner side edge portion of the insertion rod body portion 21, and has a shape that is recessed downward from the position of the upper surface 21a (the upper surface 21a of the first insertion rod body portion 22 and the upper surface 21a of the second insertion rod body portion 23) of the insertion rod body portion 21. In the plan view of the insertion rod 20, the insertion recess 26 is continuously provided from the position on the upper side than the first step portion 24 of the insertion rod body portion 21 to the tip end of the insertion rod body portion 21, over the first insertion rod body portion 22 and the second insertion rod body portion 23.

[0071] The insertion recess 26 includes a recess bottom surface 26a that is disposed in a manner orthogonal to the vertical direction, and a second step portion 26b that is provided between the recess bottom surface 26a and the upper surface (outer surface) 21a of the insertion rod body portion 21.

[0072] The recess bottom surface 26a of the insertion recess 26 is not provided with a step between the first insertion rod body portion 22 and the second insertion rod body portion 23, but has a single flat plane that is disposed from the position connected to the insertion rod engaging portion 27 to the tip end position of the insertion rod body portion 21.

[0073] The second step portion 26b is formed in such a manner that the position of the recess bottom surface 26a of the insertion recess 26 is lower in the vertical direction than the upper surface 21a of the first insertion rod body portion 22 and the upper surface 21a of the second insertion rod body portion 23, excluding the insertion recess 26. In other words, the second step portion 26b is provided between the upper surface 21a of the first insertion rod body portion 22 and the recess bottom surface 26a, and is also provided between the upper surface 21a of the second insertion rod body portion 23 and the recess bottom surface 26a.

[0074] For example, in the plan view of the insertion rod 20, Figure 3 ) the width dimension of the insertion recess 26 is set to be 20% or more and 60% or less of the width dimension of the insertion rod body portion 21, in the range in which the inner side edge and the outer side edge of the insertion rod body portion 21 are parallel or substantially parallel. Here, in the plan view of the insertion rod 20, the width dimension of the insertion recess 26 refers to the dimension in the left-right direction from the inner side edge of the insertion rod body portion 21 to the boundary portion between the second step portion 26b and the upper surface 21a of the insertion rod body portion 21. In the plan view of the insertion rod 20, the width dimension of the insertion rod body portion 21 refers to the dimension in the left-right direction from the inner side edge to the outer side edge of the insertion rod body portion 21.

[0075] By making the width dimension of the insertion recess 26 be 20% or more of the width dimension of the plug main body portion 21, it is possible to easily insert the guide portion 33 of the receptacle 30 into the insertion recess 26 of the plug 20. In addition, it is possible to easily form the plug engagement portion 27 that engages with the receptacle 30. By making the width dimension of the insertion recess 26 be 60% or less of the width dimension of the plug main body portion 21, it is possible to easily ensure the appropriate strength of the plug 20.

[0076] When the plug 20 is housed in the housing space portion 41 of the receptacle body 40, the guide portion 33 of the receptacle 30 is inserted into the insertion recess 26 of the plug main body portion 21. The dimension in the up-down direction of the insertion recess 26 is set to the same size or substantially the same size as the dimension in the up-down direction of the guide portion 33. Here, the dimension in the up-down direction of the insertion recess 26 is the dimension in the up-down direction between the upper surface 21a of the first plug main body portion 22 and the recess bottom surface 26a of the insertion recess 26.

[0077] In the present embodiment, the dimension in the up-down direction of the insertion recess 26 is set to be 10% or more and 50% or less of the thickness dimension of the first plug main body portion 22. By making the dimension in the up-down direction of the insertion recess 26 be 10% or more of the thickness dimension of the first plug main body portion 22, it is possible to appropriately ensure the depth of the insertion recess 26, and thus it is possible to stably insert the guide portion 33 of the receptacle 30 into the recess 26. By making the dimension in the up-down direction of the insertion recess 26 be 50% or less of the thickness dimension of the first plug main body portion 22, it is possible to easily ensure the strength of the plug main body portion 21 (particularly, the strength of the portion of the plug main body portion 21 that is on the lower side than the insertion recess 26).

[0078] The plug engagement portion 27 is provided to the second step portion 26b of the plug main body portion 21 in a manner that can engage with the receptacle engagement portion 35 of the receptacle 30 described later. The plug engagement portion 27 includes an engagement protrusion (plug-side engagement protrusion) 27a that protrudes rearward in a plan view of the plug 20, and an engagement recess (plug-side engagement recess) 27b that has a shape that is recessed forward. The engagement protrusion 27a and the engagement recess 27b of the plug engagement portion 27 are arranged adjacent to each other in the left-right direction. The engagement protrusion 27a is arranged at a position that is on the inner side in the left-right direction than the engagement recess 27b. The plug engagement portion 27 is arranged in a range between the protrusion portion 28 and the first step portion 24 in the front-rear direction.

[0079] The protruding portion 28 of the plug 20 protrudes from the plug main body portion 21 toward the inner side in the left-right direction in a substantially rectangular parallelepiped shape. The protruding portion 28 includes an upper surface toward the upper side and a lower surface disposed on the opposite side in the up-down direction from the upper surface. The upper surface of the protruding portion 28 is disposed in smooth connection with the upper surface 21a of the first plug main body portion 22 in a manner that forms a single plane. The thickness dimension between the upper surface and the lower surface in the protruding portion 28 is set to be smaller than the thickness dimension of the first plug main body portion 22. When the plug 20 is housed in the housing space portion 41 of the socket body 40, the protruding portion 28 is inserted and housed in the base end housing portion 34 of the seat 30, which will be described later.

[0080] The engagement protrusion portion 29 of the plug 20 protrudes forward from the protruding portion 28. The engagement protrusion portion 29 has a shape and size that can engage with the zipper teeth adjacent to the seat 30 of the second zipper tape. In a plan view of the plug 20, a tooth housing portion 29a having a shape that is recessed toward the rear is provided on the outer side in the left-right direction of the engagement protrusion portion 29.

[0081] The seat 30 and the socket body 40 of the present embodiment are fixed to the zipper tape 5 by injection molding of synthetic resin on the second zipper tape. The seat 30 and the socket body 40 are formed integrally with each other. The seat 30 and the socket body 40 are fixed to the tape side edge portion of the zipper tape 5 in a manner that straddles the tape upper surface and the tape lower surface of the zipper tape 5.

[0082] In the present embodiment, the zipper tape 5 of the second zipper tape is fixed to the seat 30 and the socket body 40 in a state of extending straight along the front-rear direction on the lower side (back side) in the up-down direction with respect to the seat 30 and the socket body 40. For example, as shown in Figs. 1 and 2, the zipper tape 5 is fixed to the seat 30 and the socket body 40 at a position closer to the lower surface of the socket body 40 than the upper surface of the socket body 40. Figure 2 and Figure 5

[0083] The thickness dimension of the seat 30 is smaller than that of the socket body 40, and the seat 30 protrudes toward the front from the socket body 40. A socket step portion 31 in which the thickness dimension changes is provided on the upper surface side and the lower surface side of the seat 30 between the seat 30 and the socket body 40. The seat 30 is disposed adjacent to the rear end portion of the tooth row of the second zipper tape in a manner that is continuous with the tooth row.

[0084] The seat 30 includes a seat main body portion 32 fixed to the zipper tape 5 and a guide portion 33 extending from the seat main body portion 32 toward the inner side in the left-right direction. The seat main body portion 32 and the guide portion 33 each have an upper surface toward the upper side and a lower surface disposed on the opposite side in the up-down direction from the upper surface.

[0085] ​The socket rod main body portion 32 has a substantially rectangular parallelepiped shape that is long in the front-rear direction. The thickness dimension between the upper surface and the lower surface of the socket rod main body portion 32 is set to the same size or substantially the same size as the thickness dimension of the first plug rod main body portion 22 of the plug rod 20. In a plan view of the socket rod 30 and the socket body 40 (Fig. 1), Figure 4 In the plan view of the socket rod 30 and the socket body 40 (Fig. 1),

[0086] A base end housing portion 34 is provided at the front end portion of the socket rod main body portion 32. In a plan view of the socket rod 30 and the socket body 40, the base end housing portion 34 is provided at the right side (plug rod 20 side) of the socket rod main body portion 32 by being recessed in a shape that reduces the width dimension of the socket rod main body portion 32 at the inner side edge portion of the front end portion of the socket rod main body portion 32.

[0087] The base end housing portion 34 is provided toward the rear from the front end position of the socket rod main body portion 32 in the front-rear direction. The base end housing portion 34 is provided in correspondence with the protruding portion 28 so as to be able to house the protruding portion 28 of the plug rod 20 when the plug rod 20 is housed in the housing space portion 41 of the socket body 40. In the socket rod 30 of the present embodiment, a recess portion that reduces the thickness dimension of the socket rod main body portion 32 can also be provided at the lower surface side of the socket rod main body portion 32.

[0088] The thickness dimension of the guide portion 33 of the socket rod 30 is formed to be smaller than the socket rod main body portion 32, and extends to the right side (plug rod 20 side) beyond the center line in the left-right direction of the socket body 40 from the socket rod main body portion 32. The guide portion 33 is joined with the socket body 40 together with the socket rod main body portion 32, and is connected with the space limiting portion 46 of the socket body 40 described later. The upper surface and the lower surface of the guide portion 33 are formed as flat surfaces orthogonal to the up-down direction. The guide portion 33 has a certain thickness dimension. The upper surface of the guide portion 33 is provided continuously and smoothly with the upper surface of the socket rod main body portion 32 in a manner that forms a single flat surface.

[0089] The lower surface of the guide portion 33 is disposed at a position more on the upper side than the lower surface of the socket rod main body portion 32 in the up-down direction. A space portion is provided at the lower side of the guide portion 33, which is able to be entered by a portion of the plug rod main body portion 21 when the plug rod 20 is inserted into and extracted from the housing space portion 41 of the socket body 40, and in a state in which the plug rod 20 is housed in the housing space portion 41 of the socket body 40.

[0090] A seat rod engaging portion 35 capable of engaging with the plug rod engaging portion 27 of the plug rod 20 is provided at the front end portion of the guide portion 33 of the seat rod 30. The seat rod engaging portion 35 includes an engaging protrusion (seat rod side engaging protrusion) 35a having a shape protruding toward the front in a plan view (plan view) of the seat rod 30 and the socket body 40, and an engaging recess (seat rod side engaging recess) 35b having a shape recessed toward the rear. Figure 4 The engaging protrusion 35a and the engaging recess 35b of the seat rod engaging portion 35 are arranged adjacent to each other in the left-right direction, and the engaging protrusion 35a is arranged at a position inside the left-right direction from the engaging recess 35b.

[0091] In the plan view (plan view) of the seat rod 30 and the socket body 40, Figure 4 In a case where the entire length dimension (dimension in the front-rear direction) of the seat rod main body portion 32 is 100%, the seat rod engaging portion 35 is arranged in a range from a position 25% of the length dimension of the socket body 40 to a position 75% of the length dimension of the socket body 40 in the front-rear direction.

[0092] In the plan view (plan view) of the seat rod 30 and the socket body 40, Figure 4 In a case where an imaginary straight line linking the right corner portion of the front end edge in the seat rod main body portion 32 and the right corner portion of the front end edge of the socket body 40 is defined as an imaginary reference line 36, the seat rod engaging portion 35 is arranged in a range on the lower side from the imaginary reference line 36.

[0093] By arranging the seat rod engaging portion 35 in a range of 25% or more and 75% or less of the length dimension of the seat rod main body portion 32, and / or in a range on the lower side from the imaginary reference line 36, the plug rod engaging portion 27 of the plug rod 20 can be easily engaged with the seat rod engaging portion 35 when the plug rod 20 is accommodated in the accommodation space portion 41 of the socket body 40. In addition, in a state where the first zipper tape and the second zipper tape are separated from each other, it is difficult for a part other than the zipper, such as a finger or clothes of a user, to get caught with the seat rod engaging portion 35 of the seat rod 30.

[0094] The socket body 40 has a substantially rectangular parallelepiped shape. The socket body 40 is provided with an accommodation space portion 41 into which a part of the plug rod 20 is inserted and accommodated. The socket body 40 includes a socket body main portion 42 fixed to the zipper tape 5 of the second zipper tape when the socket body 40 is viewed in a cross-sectional view as shown in FIG. 8, for example, a pair of surface side shell portions 43 and back side shell portions 44 extending from the socket body main portion 42 in the left-right direction, a side wall portion 45 arranged between the top end portion of the surface side shell portion 43 and the top end portion of the back side shell portion 44, and a space restricting portion 46 protruding from the socket body main portion 42 in the left-right direction between the surface side shell portion 43 and the back side shell portion 44. Figure 5 ​

[0095] In the sectional view of socket body 40 ( Figure 5 In this socket body 40, the main body 42 is provided in the left-right direction from the left side of the socket body 40 to the leftmost position of the receiving space 41. The main body 42 is provided to the left of the center line in the left-right direction of the socket body 40. The main body 42 is continuously formed in the front-back direction from the front end face to the rear end face of the socket body 40. The main body 42 and the front shell 43 together form the upper surface (surface) of the socket body 40, and together with the back shell 44, form the lower surface (back side) of the socket body 40.

[0096] The front shell portion 43 and the back shell portion 44 extend from the main body portion 42 in one direction (right side) in the left-right direction and are arranged on the front and back sides of the receiving space portion 41 to cover the receiving space portion 41. In this embodiment, the thickness of the front shell portion 43 is made larger than that of the back shell portion 44.

[0097] The side wall portion 45 of the socket body 40 is formed vertically from the top end (right end) of the front shell portion 43 to the top end (right end) of the back shell portion 44. The side wall portion 45 of the socket body 40 forms the right side surface of the socket body 40. An insertion slot 45a is formed in the side wall portion 45 in a through manner in the left-right direction. This insertion slot 45a allows the zipper tape 5 of the first zipper tooth to pass through when the insert 20 is inserted into the receiving space portion 41 of the socket body 40. The insertion slot 45a is formed in the front-rear direction from the front end face of the side wall portion 45 toward the rear. The vertical width of the insertion slot 45a is set to be larger than the thickness dimension (the dimension between the tape surface and the tape back) of the zipper tape 5.

[0098] In the sectional view of socket body 40 ( Figure 5 In the socket body 40, the space limiting portion 46 extends from the main body 42 toward the right side and from the front shell portion 43 toward the back shell portion 44 (towards the lower side) in a manner that limits the size of the receiving space portion 41. The space limiting portion 46 includes: a first wall surface (transverse wall surface) 46a, which is arranged in a direction orthogonal to the vertical direction; and a second wall surface (vertical wall surface) 46b, which is arranged in a direction orthogonal to the horizontal direction. The space limiting portion 46 is connected to the guide portion 33 of the base rod 30.

[0099] In this embodiment, the left-right dimension of the space restriction portion 46 (the dimension of the space restriction portion 46 protruding from the main body portion 42 of the socket body) is set to be 10% or more and 30% or less of the left-right dimension of the socket body 40. In addition, the left-right dimension of the space restriction portion 46 is set to be 30% or more and 50% or less of the maximum value of the left-right dimension of the receiving space portion 41.

[0100] The size of the space restricting portion 46 in the up-down direction (the size of the space restricting portion 46 protruding from the surface side housing portion 43) is set to be 5% or more and 20% or less of the size of the up-down direction of the socket body 40. In addition, the size of the space restricting portion 46 in the up-down direction is set to be 15% or more and 35% or less of the maximum value of the up-down direction size of the accommodation space portion 41.

[0101] By providing the space restricting portion 46 having such a size as described above, when a cross section of the socket body 40 orthogonal to the front-rear direction is observed, the accommodation space portion 41 of the socket body 40 is formed in a substantially L shape. In addition, the size of the space restricting portion 46 in the left-right direction and the size of the space restricting portion 46 in the up-down direction are set in correspondence with the shape and size of the guide portion 33 of the stand bar 30. Figure 5 ) is formed. In addition, the size of the space restricting portion 46 in the left-right direction and the size of the space restricting portion 46 in the up-down direction are set in correspondence with the shape and size of the guide portion 33 of the stand bar 30.

[0102] The size of the space restricting portion 46 in the front-rear direction is set to be 5% or more and 100% or less of the maximum value of the front-rear direction size of the entire socket body 40. Thereby, it is possible to stably provide the space restricting portion 46 to the socket body 40.

[0103] The accommodation space portion 41 of the socket body 40 is provided to the socket body 40 in a manner along the front-rear direction. The accommodation space portion 41 is open at the front end surface and the rear end surface of the socket body 40. The accommodation space portion 41 of the present embodiment is formed in a manner that the opening area at the front end surface of the socket body 40 is larger than the opening area at the rear end surface of the socket body 40.

[0104] In a cross-sectional view of the socket body 40 ( Figure 5 ), the accommodation space portion 41 is formed in a manner surrounded by the socket body main portion 42, the surface side housing portion 43, the back side housing portion 44, the side wall portion 45, and the space restricting portion 46. The accommodation space portion 41 communicates with the penetration gap 45a provided to the side wall portion 45 of the socket body 40. In the cross-sectional view, the accommodation space portion 41 is provided to the socket body 40 in a manner inclined downward with respect to the socket body 40. That is, the accommodation space portion 41 is provided in a manner that the distance from the back surface (lower surface) of the socket body 40 to the accommodation space portion 41 is shorter than the distance from the surface (upper surface) of the socket body 40 to the accommodation space portion 41.

[0105] In the cross-sectional view of the socket body 40, in a case where, for example, the center line 47 in the up-down direction of the interval between the surface side housing portion 43 and the back side housing portion 44 is taken as a reference, the accommodation space portion 41 has an asymmetric shape in the up-down direction. In particular, in the cross-sectional view, the accommodation space portion 41 of the present embodiment is formed in a substantially L shape by providing the space restricting portion 46.

[0106] Thus, it is possible to prevent, for example, a general plug pin having a cross section orthogonal to the front-rear direction of a plug pin body portion in a conventional separate plug-in member in a rectangular or substantially rectangular shape from being inserted into the accommodation space portion 41 of the receptacle body 40 of the present embodiment, and only the plug pin 20 of the present embodiment or a specific plug pin having a plug pin body portion in the same shape as the present embodiment can be inserted and accommodated in the accommodation space portion 41 of the receptacle body 40.

[0107] Further, by providing the accommodation space portion 41 with a substantially L-shaped shape, it is possible to prevent, for example, the plug pin 20 from rotating in the accommodation space portion 41 in a twisted manner when the left and right zipper chains are engaged and the left and right zipper tapes 5 are subjected to a lateral pulling force in a direction toward the outside in the width direction, as described later, and thus it is possible to stably maintain a state in which the plug pin 20 is accommodated in the accommodation space portion 41 in an appropriate posture.

[0108] The accommodation space portion 41 of the receptacle body 40 includes a first space portion 41a provided on the lower side (back side) of the receptacle body 40 and a second space portion 41b provided on the upper side (front side) of the receptacle body 40 and communicating with the first space portion 41a. In the case where, for example, an imaginary straight line extends straight in the left-right direction from the first wall surface (lateral wall surface) 46a of the space restricting portion 46, the first space portion 41a and the second space portion 41b are divided by the imaginary straight line.

[0109] The first space portion 41a and the second space portion 41b are formed in such a manner that the right side edges are disposed at the same position in the left-right direction. In other words, the inner wall surface of the side wall portion 45 provided throughout the first space portion 41a and the second space portion 41b of the receptacle body 40 is not formed in steps between the first space portion 41a and the second space portion 41b, but is formed by a single flat surface.

[0110] In a cross-sectional view of the receptacle body 40 ( Figure 5 ), the first space portion 41a of the accommodation space portion 41 has a substantially rectangular shape that is longer in the left-right direction, and the maximum value of the left-right direction dimension of the first space portion 41a is set to be larger than the maximum value of the up-down direction dimension. In the present embodiment, the first space portion 41a is formed to extend on the lower side compared to the center line in the up-down direction of the receptacle body 40.

[0111] The second space portion 41b of the accommodation space portion 41 is formed so as to extend upward from the first space portion 41a. The second space portion 41b is formed so as to have a smaller left-right direction dimension and a smaller up-down direction dimension than the left-right direction dimension and the up-down direction dimension of the first space portion 41a, respectively. For example, in the case of the present embodiment, the left-right direction dimension of the second space portion 41b is set to be 50% or more and 70% or less of the maximum value of the left-right direction dimensions of the first space portion 41a. The up-down direction dimension of the second space portion 41b is set to be 15% or more and 35% or less of the maximum value of the up-down direction dimensions of the first space portion 41a.

[0112] Next, the operation of combining the first zipper tape and the second zipper tape that are separated from each other and engaging the chain teeth when the separating and fitting jig 10 of the present embodiment shown in Figs. 1 to 3 is used will be described. Figure 1 and Figure 2 Next, the operation of combining the first zipper tape and the second zipper tape that are separated from each other and engaging the chain teeth when the separating and fitting jig 10 of the present embodiment shown in Figs. 1 to 3 is used will be described.

[0113] First, the slider is moved to the sliding rear end position where the slider body 40 is in abutment and stopped. At this time, the seat rod 30 of the separating and fitting jig 10 is inserted into the chain tooth guide path from the rear port of the slider.

[0114] Next, the insertion rod 20 of the separating and fitting jig 10 is inserted into the chain tooth guide path of the slider from the right side shoulder port of the slider where the slider body 40 is in abutment. At this time, the tip end portion of the insertion rod 20 is close to the seat rod 30 in the chain tooth guide path of the slider, and the guide portion 33 of the seat rod 30 is inserted into the insertion recess portion 26 of the insertion rod 20. Then, the insertion rod 20 is deeply inserted into the chain tooth guide path, whereby the insertion rod 20 is moved toward the accommodation space portion 41 of the slider body 40 while maintaining the state where the guide portion 33 of the seat rod 30 is inserted into the insertion recess portion 26 of the insertion rod 20.

[0115] In this way, the insertion rod 20 is moved in the state where the guide portion 33 of the seat rod 30 is inserted into the insertion recess portion 26 of the insertion rod 20, whereby the insertion rod 20 can be guided by the guide portion 33 of the seat rod 30, and thus smoothly and stably moved to the accommodation space portion 41 of the slider body 40. In addition, the guide portion 33 of the seat rod 30 is inserted into the insertion recess portion 26 of the insertion rod 20, whereby it is possible to prevent the insertion rod 20 from being twisted, for example, in such a manner that the length direction of the insertion rod 20 is used as an axis during the insertion operation of the insertion rod 20 into the accommodation space portion 41 of the slider body 40. Thus, it is possible to easily insert the insertion rod 20 into the accommodation space portion 41 of the slider body 40 in an appropriate posture, and thus it is possible to make it difficult for the insertion rod 20 to be caught by the slider body 40 or the slider, or the like.

[0116] The insertion rod 20 of the present embodiment is formed so as to have a smaller left-right direction dimension and a smaller up-down direction dimension than the left-right direction dimension and the up-down direction dimension of the seat rod 30, respectively, in a plan view of the insertion rod 20 (see Fig. 4). Figure 3In the present embodiment, the inner side edge of the tip end portion is inclined with respect to the front-rear direction in such a manner that the width dimension of the plug 20 gradually decreases toward the tip end. In addition, a tip end inclined portion 25 is provided at the tip end of the plug body portion 21 in such a manner that the thickness dimension of the plug body portion 21 gradually decreases toward the tip end. Thus, the plug 20 can be more smoothly inserted into the accommodation space portion 41 of the socket body 40.

[0117] Furthermore, in the present embodiment, the plug 20 is moved and accommodated into the accommodation space portion 41 of the socket body 40, whereby the plug engaging portion 27 of the plug 20 is engaged with the seat engaging portion 35 of the seat 30 from the front side as shown in FIG. 6, and the protruding portion 28 of the plug 20 is moved and accommodated into the base end accommodation portion 34 of the seat 30. Figure 1

[0118] After the plug 20 is accommodated and held in the accommodation space portion 41 of the socket body 40, the puller in contact with the socket body 40 is slid toward the front (a direction away from the socket body 40). Thus, the rows of teeth of the first and second zipper tapes can be engaged in order from the rear side, thereby closing the zipper.

[0119] Next, a method of separating the first and second zipper tapes after separating the left and right rows of teeth in the state in which the left and right rows of teeth are engaged will be described.

[0120] First, the puller is moved along the left and right rows of teeth to a sliding rear end position in abutment with the socket body 40. Thus, the left and right rows of teeth can be completely separated.

[0121] Next, the zipper tape 5 (for example, a portion of the zipper tape 5 near the plug 20) is held, and the plug 20 is moved forward so that the plug 20 is pulled out of the accommodation space portion 41 of the socket body 40 with respect to the seat 30 and the socket body 40. Thus, the plug 20 can be pulled out of the accommodation space portion 41 of the socket body 40 via the tooth guide path of the puller, thereby separating the plug 20 from the seat 30 and the socket body 40 from each other, and the first zipper tape having the plug 20 and the second zipper tape having the seat 30 and the socket body 40 can be separated.

[0122] ​In the slide fastener having the separation insert 10 of the present embodiment as described above, in a cross-sectional view of the socket body 40 orthogonal to the front-rear direction, the accommodation space portion 41 of the socket body 40 is formed in a shape that is asymmetric in the up-down direction. Thus, as described above, only the plug 20 of the present embodiment or a specific plug having a plug body portion of the same shape as that of the present embodiment can be inserted and accommodated in the accommodation space portion 41 of the socket body 40. In other words, the socket body 40 of the present embodiment can restrict the plug that can be inserted into the accommodation space portion 41. Therefore, it is possible to effectively prevent or suppress, for example, slide fastener tapes having shapes and sizes that do not correspond to each other from being combined and connected to each other.

[0123] The slide fastener having the separation insert 10 of the present embodiment as described above is suitable for, for example, a seat cover for a car seat, and in particular, is more suitable for a seat cover that can replace a part of the seat cover. Furthermore, in the present application, the use of the slide fastener having the separation insert 10 is not particularly limited.

[0124] Moreover, in the separation insert 10 of the present embodiment, the plug 20 is provided with the insertion recess 26, and the accommodation space portion 41 of the socket body 40 has a substantially L-shaped shape in a cross-sectional view. Thus, it is possible to prevent the plug 20 from rotating in the accommodation space portion 41 in a twisted manner when, for example, the left and right rows of fastener elements are engaged and the left and right slide fastener tapes 5 are subjected to a transverse pulling force that pulls toward the outside in the width direction.

[0125] Reference Signs List Figure 2 Specifically, in a state in which the plug 20 is accommodated in the accommodation space portion 41 of the socket body 40 and the left and right rows of fastener elements are engaged, when the left and right slide fastener tapes 5 are subjected to a transverse pulling force 6, the plug 20 (the plug body portion 21) in the accommodation space portion 41 is subjected to a force 7 applied from the slide fastener tape 5 fixed to the biased position in the plug 20, which causes the plug 20 to rotate in the clockwise direction on the paper surface. Figure 2 in the clockwise direction on the paper surface.

[0126] In such a case, in the separation insert 10 of the present embodiment, the lower surface (back surface) 21b of the second plug body portion 23 inserted into the socket body 40 is formed wider in the left-right direction than the upper surface (surface) 21a of the second plug body portion 23, and is disposed facing the back side housing portion 44 of the socket body 40. In addition, the second step portion 26b of the plug 20 is disposed facing the second wall surface 46b of the space restricting portion 46 of the socket body 40. Therefore, when the plug 20 is subjected to the force 7 that causes it to rotate in the clockwise direction as described above, the back surface of the plug body portion 21 of the plug 20 and the second step portion 26b come into contact with (interfere with) the back side housing portion 44 of the socket body 40 and the second wall surface 46b of the space restricting portion 46, respectively, thereby making it possible to prevent the plug 20 from rotating in the clockwise direction.

[0127] Therefore, in the separation and insertion 10 of the embodiment, even if the left and right zipper strips 5 are subjected to the lateral tension 6, the insertion rod 20 can be stably maintained in the appropriate posture in the accommodation space portion 41 of the socket body 40. Therefore, the separation and insertion 10 of the embodiment can improve the lateral strength against the lateral tension.

[0128] Furthermore, in the separation and insertion 10 of the embodiment, the insertion rod 20 is provided with the insertion rod engaging portion 27, and the seat rod 30 is provided with the seat rod engaging portion 35 engaged with the insertion rod engaging portion 27. Therefore, by accommodating the insertion rod 20 in the accommodation space portion 41 of the socket body 40, the insertion rod engaging portion 27 of the insertion rod 20 is engaged with the seat rod engaging portion 35 of the seat rod 30, thereby further improving the lateral strength of the separation and insertion 10.

[0129] In addition, the utility model is not limited to the above-mentioned embodiment, as long as having the same structure with the utility model and playing the same effect, can carry out multiple changes.

[0130] For example, the separation and insertion 10 of the above-mentioned embodiment is formed as a left insertion type separation and insertion 10 for operating the insertion rod 20 with the left hand. However, the separation and insertion of the utility model can also be formed as a right insertion type separation and insertion for operating the insertion rod with the right hand.

[0131] In addition, in the above-mentioned embodiment, the zipper is formed as a so-called general type zipper with a plurality of zipper teeth (tooth rows) installed on the belt surface of the zipper strip 5. However, the zipper of the utility model can also be formed as a so-called reverse type zipper with a plurality of zipper teeth (tooth rows) arranged on the belt back of the zipper strip. In the case of being formed as a reverse type zipper like this, the separation and insertion is formed as having the shape and structure opposite to the separation and insertion 10 of the embodiment in the up-down direction.

Claims

1. A split-embedded insert, the split-embedded insert comprising: Insert (20), which is disposed on the first zipper tooth of the zipper; The zipper includes a base bar (30) and a socket body (40), which are disposed on the second zipper tooth strip of the zipper. When the left and right zipper teeth are separated in the zipper, the first zipper tooth strip and the second zipper tooth strip can be separated from each other. The zipper is characterized in that: The seat bar (30) protrudes forward from the socket body (40). The socket body (40) has a receiving space (41) that allows a portion of the plug (20) to be inserted into and to receive a portion of the plug (20). When observing a cross-section of the socket body (40) that is orthogonal to the front and back directions, the receiving space (41) has an asymmetrical shape in the front and back directions.

2. The separate insert according to claim 1, characterized in that: When observing the cross-section of the socket body (40), the receiving space (41) includes: a first space (41a) disposed on one side in the direction of the back of the watch, and a second space (41b) disposed on the other side in the direction of the back of the watch in a manner communicating with the first space (41a). The width dimension of the second space portion (41b) is smaller than the width dimension of the first space portion (41a).

3. The separate insert according to claim 1, characterized in that: When observing the cross-section of the socket body (40), the receiving space portion (41) has a generally L-shaped shape.

4. The separate insert according to claim 1, characterized in that: When observing the cross-section of the socket body (40), the socket body (40) includes: a socket body main body (42) fixed to the zipper strap (5) of the second zipper tooth strap; a pair of shells (43, 44) extending from the socket body main body (42) in the width direction and disposed on the front and back sides of the receiving space (41); a side wall (45) disposed between the top portions of the pair of shells (43, 44); and a space limiting portion (46) protruding from the socket body main body (42) in the width direction between the pair of shells (43, 44) and protruding from one shell of the pair of shells (43, 44) toward the other shell.

5. The separate insert according to claim 1, characterized in that: The zipper tape (5) of the first zipper tooth is fixed to the insert (20) at a position biased toward the back of the watch. The zipper tape (5) of the second zipper tooth is fixed to the base (30) and the socket body (40) at a position biased toward the back of the watch.

6. The separate insert according to claim 1, characterized in that: The zipper bar (30) includes: a zipper bar body (32) fixed to the zipper tape (5) of the second zipper tooth belt; and a guide portion (33) extending from the zipper bar body (32) in the width direction, wherein the dimension in the face-back direction is smaller than that of the zipper bar body (32). The insert (20) includes: an insert body (21) which is fixed to the zipper tape (5) of the first zipper tooth tape; and an insertion recess (26) which is provided on the side edge of the insert body (21) facing the seat (30) so that the guide (33) can be inserted.

7. The separate insert according to claim 6, characterized in that: The base rod (30) has a base rod engaging portion (35) that engages with the insert rod (20) when the insert rod (20) is received in the receiving space portion (41) of the socket body (40). The seat rod engaging part (35) is disposed on the guide part (33). The insert (20) has an insert engagement portion (27) that engages with the seat engagement portion (35). The insertion rod engaging portion (27) is provided on the step portion (26b), which is disposed between the outer surface of the insertion rod body portion (21) and the bottom surface of the insertion recess (26).

Images