TWI484926B - Zipper with slider and zipper - Google Patents

Description

Zipper slider and zipper

The present invention relates to a slide fastener for a zipper that is adapted to pass through the opened portion when one of the pair of fasteners should be closed due to poor meshing of the meshing heads of the respective fastener elements, and the slider and the same A pair of chain zippers.

In general, the zipper includes a pair of opposite pairs of chain belts and a slider for opening and closing the two chain belts. Further, the pair of chain belts include a pair of opposite pairs of chain cloths and a plurality of fastener elements mounted at intervals along the opposite side edges of the two chain cloths.

Further, generally, when the user advances the slider to one side in the longitudinal direction of the fastener tape, the fastener elements of the pair of fastener belts are engaged with each other in the front-rear direction, and the slider is retracted toward the other side in the longitudinal direction. , the engagement is released and opened. Hereinafter, regarding the directivity, the forward direction of the slider is set to the front direction, the backward direction is set to the rear direction, the direction in which the pair of links are opposed is the left-right direction, and the thickness direction of the chain is the vertical direction. Be explained.

In other words, when a pair of chain belts are originally closed, the fastener elements may be opened due to poor meshing engagement. Hereinafter, such a state is referred to as a "disengaged state".

The disengaged state is usually not the state desired by the user. Further, in order to eliminate the disengaged state, the user must retreat the slider, and insert one of the engagement openings (openings on the retreating side) of the slider main body, which is one of the constituent elements of the slider, into the inside of the slider main body portion. After the sprocket of the chain belt is then retracted to the end of the sprocket row, the slider is moved again to bring the sprocket into an engaged state.

Originally, the engaging opening is used to open the opening of the left and right fastener elements in the engaged state. Therefore, the shape of the engaging opening viewed from the rear is substantially rectangular, and the sprocket of the left and right chain belts are slightly larger in the left-right direction and the up-and-down direction in the state of being meshed with each other by the meshing heads. .

However, in the case of the disengaged state, the meshing heads of the left and right sprocket teeth which are released from the vicinity of the meshing port may be in a state of being overlapped in the vertical direction when viewed from the rear. For example, this state is sometimes generated when a plurality of fastener elements are continuous continuous fastener elements. In the case of this state, the size of the engaging heads of the left and right sprocket teeth in the upper and lower directions is much larger than the interval between the upper and lower sides of the engaging opening. Therefore, it is difficult to retract the slider when the state is released.

Incidentally, the prior art zippers which are related to the disengaged state but are associated with the shape of the engaging opening are disclosed in the following Patent Documents 1 and 2.

In any of the patent documents, the engaging portions of the main body of the slider of the zipper are opposite to each other in the left-right direction of the upper and lower flaps and the upper or lower flaps by spacing up and down. The flange is formed in a substantially rectangular shape toward the flange that protrudes toward the upper or lower wing. Further, in Patent Document 1, on the inner surface of the lower blade, the left and right grooves avoiding the side edge portions of the chain cloth are formed toward the front from the engagement opening. Further, in Patent Document 2, one recessed portion corresponding to the groove of Patent Document 1 is formed in the same manner on the inner surface of the upper blade or the lower blade.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open No. 58-7203

Patent Document 2: Japanese Patent Laid-Open No. Hei 9-37817

However, the above-described grooves and the like in the prior art are formed on one of the upper and lower flaps. Moreover, the depth of the groove or the like is such that the side edge portion of the chain cloth is avoided (= is equivalent to the thickness of the chain cloth). As described above, in the zipper of the prior art, if the zipper is to be retracted when the pair of link belts are disengaged, the fastener element collides with the engagement opening, and the fastener element cannot smoothly enter from the engagement opening.

Incidentally, even if the user is in the disengaged state, if the user easily retracts the slider, the user can actively create the disengaged state and open the pair of chain belts. Thus, in order to open and close one of the chain belts, the user can complete the operation without operating the slider, and as a result, the convenience of the zipper is improved.

The present invention has been made in consideration of the above-described actual circumstances, and an object thereof is to provide an element in which the left and right links of the chain belt are easily inserted into the inside of the slider main body from one of the disengaged states, in other words, it is easy to be relatively A slider that is retracted from the chain in one of the disengaged states, and a zipper that is adapted to the one of the sliders.

The slide fastener for a slide fastener of the present invention is previously provided to include a slider main body portion and a pull tab provided on an upper surface side of the slider main body portion, the slider main body portion including: an upper flap and a lower flap, which are equally spaced a connecting post that vertically connects the upper blade and the lower blade in a central portion of the left and right sides thereof; and a flange that is at least one of the upper blade and the lower blade Both end portions in the left-right direction protrude in a direction in which the upper and lower intervals are reduced.

Further, the slider for a slide fastener according to the present invention is characterized in that, between the upper blade and the lower blade, the connecting post and the flange guide the path in an orthogonal direction with respect to the vertical direction and the left-right direction. Extended to form. Further, the guide path includes a branch path that is branched at a right and left side of the connecting post, and an meshing path that faces the slider main body portion located in the orthogonal direction from a vicinity of the connecting post that is a branch point of the left and right branch paths The end. Further, at least a central portion of the inner surface of the upper blade and the lower blade opposite to each other in the horizontal direction, and the end portion of the meshing path side is provided with an upper recess and a lower portion Concave.

Further, as described in the column of the prior art, in the case of the disengaged state, in the vicinity of the rear side of the engaging opening of the slider main body portion (near the end portion of the slider main body portion), the left and right chains of the engagement are released. The meshing heads of the teeth are in a state of being overlapped in the vertical direction when viewed from the rear. However, the upper and lower portions of the upper concave portion and the lower concave portion are enlarged at intervals from the end portions of the upper blade or the like. Therefore, when the slider is retracted, the left and right fastener elements are inserted into the slider main body portion by the above-described vertical interval.

The upper and lower intervals of the upper concave portion and the lower concave portion may be fixed to the entire length in the orthogonal direction, for example, but in order to achieve faster engagement of the left and right fasteners between the upper and lower blades from the end portion. It is desirable to be as follows.

In other words, the upper and lower portions of the upper concave portion and the lower concave portion are gradually reduced toward the connecting column over the entire length in the orthogonal direction.

In addition, the upper and lower intervals of the upper concave portion and the lower concave portion are gradually reduced toward the connecting column over the entire length in the orthogonal direction. For example, the upper concave portion and the like are in a plurality of stages, and the vertical interval is oriented toward the above-mentioned The case where the column is connected and the stage is gradually reduced, but it is more preferable to be as follows.

In other words, the upper concave portion and the lower concave portion have inclined portions that gradually reduce the vertical interval toward the connecting post over the entire length in the orthogonal direction.

Further, the inner surface of the upper blade and the lower blade may be formed by, for example, the upper flat portion and the lower flat portion, in addition to the upper concave portion and the lower concave portion, but it is preferably as follows. .

In other words, the inner surface of the upper wing plate and the lower wing plate has a raised portion extending from the connecting post toward the end portion, and a raised portion extending from the connecting post toward the end portion. The upper concave portion and the lower concave portion are provided on the end side of the slider main body portion from the upper raised portion and the lower raised portion.

Moreover, the upper concave portion and the lower concave portion may be, for example, between the left and right flanges. The direction is set globally, but it can also be as follows.

In other words, the inner surface of the upper blade and the lower blade have an upper planar portion and a lower planar portion on the inner side in the left-right direction of the left and right flanges, and a center in the left-right direction of the upper planar portion. The upper concave portion is disposed, and the lower concave portion is disposed at a central portion of the lower flat surface portion in the left-right direction. Further, the upper flat surface portion and the lower flat surface portion are spaced apart from each other by an upper and lower interval between the upper concave portion and the lower concave portion. Further, the vertical interval between the upper concave portion and the lower concave portion is gradually increased from the both sides in the left-right direction toward the central portion.

Moreover, as a slide fastener which uses the said slider for slide fasteners, the following are mentioned.

That is, the slide fastener of the present invention includes: the slider; and the left and right chain belts, to which the sliders movable in the orthogonal direction are attached. Further, the above-mentioned chain belts on the right and left sides include: the above-mentioned chain cloths on the right and left sides, and the opposite direction; and the left and right chain tooth rows, which are included in the opposite side edges of the respective chain cloths to be installed in the orthogonal direction Each of the fastener elements is inserted into the slider.

Moreover, as a slide fastener suitable for the slider for slide fastener mentioned above, the following are mentioned.

In other words, the left and right sprocket teeth are excluding the engagement arranging portion in which one of the plurality of sprocket teeth is alternately normally meshed with each other in a specific form, and a chain cloth having substantially no such sprocket and having left and right links is provided. The substantially non-engaging portion or the weakly meshing portion in which the sprocket teeth are weakerly meshed with each other than the partial sprocket of the engaging row portion.

Further, as an example of a specific configuration of the slider, for example, the following may be employed.

In other words, the slider is formed by inserting the left and right element rows in a state in which the meshing path is provided on both sides of the connecting column in the orthogonal direction.

Further, as another example of the specific configuration of the above-described slide fastener, for example, the following may be employed.

That is, the above-mentioned chain belts on the right and left sides of the zipper are attached to the two sliders. Further, the connecting columns of the two sliders are in a positional relationship in the orthogonal direction.

According to the slider for a slide fastener of the present invention, since the upper and lower concave portions are spaced apart from each other by the upper concave portion and the lower concave portion, the slider is moved to the meshing path side (retracted), and the left and right sides are disengaged. The sprocket smoothly enters into the slider body portion as compared with the previous one. Therefore, according to the present invention, the disengaged state can be easily eliminated.

In addition, when the upper concave portion and the lower concave portion are vertically and downwardly spaced apart from each other in the orthogonal direction, the sliding member is gradually reduced toward the connecting column, and when the sliding member is retracted, the left and right chains are followed. The teeth enter the slider, and the left and right sprocket teeth gradually mesh, so that the slider can be retracted more smoothly.

Further, when the upper concave portion and the lower concave portion have the sliding members that vertically reduce the inclined surface portion which is continuously narrowed toward the connecting column over the entire length in the orthogonal direction, the slider can be separated from the left and right chains in the disengaged state. The teeth retreat more smoothly.

Moreover, if the upper and lower slats are provided with the upper ridge and the lower ridge, and the upper and lower ridges are provided with the upper and lower recesses, the slider can be made relative to the slider. The sprocket that becomes the left and right of the disengaged state retreats more smoothly.

Further, the sliding member, that is, the inner surface facing the upper blade and the lower blade, has an upper flat portion and a lower flat portion on the inner side in the left-right direction of the flanges on the right and left sides, and The center portion in the left-right direction of the flat portion and the lower flat portion has an upper concave portion and a lower concave portion, and the upper and lower concave portions are vertically enlarged from the both sides in the left-right direction toward the central portion, so that the slider can be separated from the central portion. The sprocket on the left and right sides of the open state smoothly retreats compared to the previous one.

Further, according to the slide fastener of the present invention including the slider including the upper concave portion and the lower concave portion and the left and right chain belts, the slider can be smoothly retracted with respect to the left and right fastener elements in the disengaged state.

Further, in the case of the zipper, that is, the left and right element rows, the non-engagement portion or the weak-engagement portion is provided in addition to the engagement row portion in which the sprocket teeth are normally meshed with each other, and the user can easily Producing a disengaged state, which can be easily made by retracting the slider Eliminate the disengaged state.

Further, in the case of the slide fastener including the slider having the meshing path on both sides of the connecting column in the orthogonal direction, the disengaged state can be eliminated by advancing and retracting the slider.

Further, even if two sliders are attached to the left and right chain belts, and the connecting columns of the two sliders are in a positional relationship in the orthogonal direction, the sliders of the two members can be mutually Move away from the orthogonal direction to eliminate the disengaged state.

1‧‧‧ zipper

2‧‧‧Chain

3‧‧‧Chain

3a‧‧‧ circle

4‧‧‧ sprocket

4a‧‧‧Chain row

4a1‧‧‧Meshing section

4a2‧‧‧ Non-engagement

4b‧‧‧Continuous sprocket

5‧‧‧ stop

6‧‧‧Sliding parts

7‧‧‧Sliding body

8‧‧‧ Pulling plate installation

9‧‧‧ Pulling

31‧‧‧fixed yarn

41‧‧‧Meshing head

42‧‧‧上上

43‧‧‧Reversal Department

44‧‧‧Foot

61‧‧‧Sliding parts

62‧‧‧Sliding parts

71‧‧‧Upper wing

71a‧‧‧Upper plane

71b‧‧‧Uplift

71b1‧‧‧Uplifted main line

71b2‧‧‧Uplift branch

71b3‧‧‧Sloping face

71c‧‧‧Pawl hole

71d‧‧‧Upper recess

71d1‧‧‧Sloping face

71d2‧‧‧Flat Department

72‧‧‧lower wing

72a‧‧‧ lower plane

72b‧‧‧Lower uplift

72b1‧‧‧The main line of the uplift

72b2‧‧‧Lower branch

72b3‧‧‧Sloping face

72d‧‧‧dove

72d1‧‧‧Sloping face

72d2‧‧‧Flat Department

72e‧‧‧ Groove

73‧‧‧ Linked Column

74‧‧‧Flange

75‧‧‧Import

76‧‧‧Matching

77‧‧‧ Passing through the mouth

78‧‧‧Guide the way

78a‧‧‧Main line (in meshing road)

78b‧‧‧ branch road

79‧‧‧ front meshing port

91‧‧‧Rings

P‧‧‧Hooded jacket

P1‧‧‧ collar

P2‧‧‧ hat

Fig. 1 is a plan view showing a slide fastener according to a first embodiment of the present invention.

Fig. 2 is a perspective view showing a slider included in the slide fastener of the first embodiment.

Figure 3 is a perspective view showing the inner surface of the flap above the slider of Figure 2.

Figure 4 is a perspective view showing the inner surface of the flap below the slider of Figure 2.

Figure 5 is a cross-sectional view showing the inner surface of the upper wing of the slider of Figure 2;

Figure 6 is a cross-sectional view showing the inner surface of the flap side of the slider of Figure 2;

Fig. 7 is a view showing a rear portion side in a cross-sectional view taken along line VII-VII of Fig. 6;

Fig. 8 is a view showing a rear portion side in a cross-sectional view taken along line VIII-VIII of Fig. 6;

Fig. 9 is a cross-sectional view showing a cut portion taken along the line IX-IX of Fig. 6, and the upper side is omitted from the upper portion of the upper blade.

Fig. 10 is a cross-sectional view showing the X-X line cut portion of Fig. 6;

Fig. 11 is a plan view showing a state in which a pair of fastener tapes are disengaged from the engagement opening side of the slider.

Fig. 12 is a plan view showing a state in which the slider is retracted.

Fig. 13 is a plan view showing a state in which the slider is retracted to the rear stop.

Fig. 14 is a cross-sectional view showing the state of one of the inner portions of the slider main body portion.

Fig. 15 is a view showing a main portion of a cross-sectional view taken along line XV-XV of Fig. 14;

Fig. 16 is a cross-sectional view showing the rear side of the blade side of the cut portion of the line XVI-XVI of Fig. 15;

Fig. 17 is a view showing a principal part of a cross-sectional view taken along the line XVII-XVII of Fig. 14;

Fig. 18 is a view showing a principal part of a cross-sectional view taken along line XVIII-XVIII of Fig. 14;

Figure 19 is a perspective view showing a parka.

Figure 20 is a perspective view showing a zipper attached to a collar of a hooded jacket.

Fig. 21 is a plan view showing a slide fastener according to a second embodiment of the present invention.

Fig. 22 is a cross-sectional view showing the slider main body portion of the slide fastener according to the second embodiment.

Fig. 23 is a cross-sectional view showing the main part of a slider according to a third embodiment of the present invention.

Fig. 24 is a view showing the main part of a cross-sectional view taken along line XXIV-XXIV of Fig. 23;

As shown in Fig. 1, a slide fastener 1 according to a first embodiment of the present invention includes a pair of pair of fastener tapes 2, 2, and a slider 6 that opens and closes a pair of fastener tapes 2, 2. Further, in the column of the prior art, the longitudinal direction of the pair of chain belts 2, 2 (the length direction of the chain cloth 3 described later) is referred to as the front-rear direction (the direction in the upper direction of FIG. 1 is referred to as the front direction). The direction in the lower direction of FIG. 1 is referred to as the rear direction. The direction in which the pair of chain belts 2 and 2 are opposed is referred to as the left-right direction, and the direction in which the direction perpendicular to the plane of the chain cloth 3 is referred to as the vertical direction. Hereinafter, the directivity will be similarly described in the description of each drawing. The slider 6 will also be described with this directionality. Incidentally, the above-described left-right direction is a horizontal horizontal direction and a direction orthogonal to the longitudinal direction of the chain cloth 3, and is also referred to as a horizontal width direction. Further, the front-rear direction is also referred to as an orthogonal direction orthogonal to the vertical direction and the horizontal direction.

The pair of chain belts 2, 2 include: a pair of chain cloths 3, 3, which are opposite to each other; and a plurality of fastener elements 4, which are equally spaced apart in the front and rear directions along the opposite side edges of the respective chain cloths 3 And set. The sprocket row 4a is formed by the plurality of sprocket teeth 4 arranged in the front-rear direction. In the illustrated example, the sprocket row 4a is a continuous loop-like shape in which the plurality of sprocket teeth 4 are connected in the front-rear direction. The sprocket 4b is formed.

The continuous fastener element 4b is obtained by winding a monofilament made of a synthetic resin in a fixed direction. More specifically, as shown in FIG. 18, one of the sprocket teeth 4b includes an engaging head portion 41 which mainly extends in the up and down direction, and an upper leg portion 42 which faces from the upper end of the engaging head portion 41. The side of the chain cloth 3 mainly extends in the lateral direction; the inverting portion 43 is on the side of the chain cloth 3 of the upper leg portion 42. The end portion is at least downward; and the lower leg portion 44 extends from the lower end of the inverting portion 43 toward the opposite side of the reverse chain in the lateral direction; and the engaging head portion 41, the upper leg portion 42, the inverting portion 43, and the lower leg portion 44 The system is connected in a spiral shape. Further, at the end portion of the leg portion 44 on the side of the chain fabric 3 of each of the fastener elements 4, the lower end portion of the engaging head portion 41 of the adjacent fastener element 4 is in a state of being connected, and the plurality of fastener elements 4 are connected as such. It is a continuous sprocket 4b of a loop shape.

The chain fabric 3 to which the continuous sprocket 4b is fixed is in the form of a belt (elongated rectangular cloth). In the illustrated example, the warp 3a is knitted by the knitting yarn in a state of being protruded downward. lower surface.

Further, on one side of the lower surface of the fastener fabric 3, in the illustrated example, the opposite side edge portion of the lower surface side, the continuous fastener element 4b is knitted with a fixed yarn 31 as a part of the knitting yarn. 3 is woven at the same time, thereby being fixed. Thereby, the plurality of engaging head portions 41 are arranged at equal intervals in the longitudinal direction of the chain cloth 3. Further, between the adjacent engaging head portions 41 before and after a continuous sprocket 4b, the engaging head portion 41 of the other continuous sprocket 4b is fitted therein, whereby the meshing of the continuous sprocket 4b of the two The heads 41 are engaged with each other to form an engaging row portion 4a1. Further, the sewing yarns may be used for the fixed yarns 31, and the continuous fastener elements 4b may be sewn and fixed to the surface of the woven or knitted chain fabric 3 by the fixed yarns 31.

Further, the engaging head portion 41 (in the illustrated example, the engaging head portion 41, the upper leg portion 42, and the middle portion of the plurality of engaging head portions 41 of the at least one continuous sprocket 4b) a portion of the lower leg portion 44) forming a portion of the continuous sprocket 4b that is not engaged with the two (substantially without the sprocket 4 and the portions of the left and right chain fabrics 3, 3 substantially opposite), that is, the non-engaging portion 4a2 . In the illustrated example, the meshing head portion 41 of the continuous sprocket 4b of the two is cut at a plurality of specific positions relative to the entire length of the chain cloth 3, and the sprocket 4 thus cut becomes a dummy sprocket 4 . In this state, each of the element rows 4a is in a state in which a plurality of continuous teeth 4b which are connected to a plurality of the fastener elements 4 adjacent in the front-rear direction are provided at intervals in the longitudinal direction of the chain cloth 3. Further, a plurality of engagement groove portions 4a1 are formed at intervals in the longitudinal direction of the chain cloth 3, and non-engagement is disposed between the adjacent engagement groove portions 4a1. Part 4a2. Here, the engaging row portion 4a1 is alternately normally engaged with each other by the engaging head portion 41 of a specific form, and the left and right sprocket teeth 4, 4. Further, when the non-engagement portion 4a2 is to pull the pair of link belts 2, 2 away from each other and apply a tensile force (transverse force) in the left-right direction, the left and right sprocket teeth 4 of the non-engagement portion 4a2 do not mesh with each other, and thus The engaging portion 4a1 does not have a meshing force against the lateral pulling force. Therefore, the non-engaging portion 4a2 is first opened, and the meshing state of the engaging row portion 4a1 is sequentially separated by the portion, and the pair of chain belts 2 can be opened. 2.

Further, the non-engagement portion 4a2 includes not only the left and right chain cloths 3, 3 but also the sprocket 4 which is disposed as described above, and the left and right chain cloths 3 and 3 which do not have the sprocket 4 at all. Directly opposite the situation.

Further, in the non-engaging portion 4a2, the left and right sprocket teeth 4, 4 are alternately normally engaged with each other, but differently, for example, a weak meshing portion may be formed in which the left and right sprocket teeth 4, 4 are alternately engaged with each other, but The meshing force of the equal sprocket teeth 4, 4 to each other is weaker than the meshing force of the engaging row portion 4a1. In this case, for example, by making the dimension of the engaging head in the weak engaging portion smaller than the dimension of the engaging head portion 41 in the engaging row portion 4a1 in the front and rear directions, the meshing state is engaged with each other. There are differences in size, whereby a weak meshing portion can be formed. The lateral pulling force necessary for the separation of the weak meshing portion can be appropriately set, and is set to be 10 N to 100 N as an example.

Further, in the illustrated example, the pair of chain belts 2, 2 have a stopper 5 on the lower side of one side in the front-rear direction with respect to the element row 4a, and the stopper 5 is in the two chain cloths 3, 3 Fixed to the side edge of the opposite direction. Therefore, by the stopper 5, the pair of chain belts 2, 2 are integrated. By moving the slider 6 forward from the side of the stop 5, the sprocket teeth 4 of the pair of chain belts 2, 2 are engaged with each other, and the pair of chain belts 2, 2 can be closed by being closed relative to each other. One of the pair of chain belts 2, 2 moves the slider 6 rearward, and the meshed teeth 4 in the engaged state are separated from each other to open the pair of chain belts 2, 2.

When the pair of chain belts 2, 2 are engaged by the engagement portion 4a1, if the user pulls the left and right chain cloths 3, 3 in the left-right direction, the chain of the engagement portion 4a1 is engaged. The engagement of the engaging heads 41 of the teeth 4 with each other from the vicinity of the non-engaging portion 4a2 is forcibly When the pair of chain belts 2 and 2 are released, the pair of chain belts 2 and 2 are disengaged. In order to eliminate such a disengaged state, it is necessary to move the slider 6 rearward with respect to the pair of chain belts 2, 2.

As shown in FIG. 2 to FIG. 6, the slider 6 includes: a slider main body portion 7; a pull tab mounting portion 8 provided on an upper surface of the slider main body portion 7; and a pull tab 9 mounted on the pull tab Mounting portion 8. Hereinafter, each component will be described in detail.

The slider main body portion 7 includes an upper blade 71 and a lower blade 72 which are disposed opposite to each other with a space therebetween, and a connecting post 73 which is coupled to the lateral width between the upper blade 71 and the lower blade 72. The center portion of the direction and the front side; and the four flanges 74 project from the left and right end portions of both the upper blade 71 and the lower blade 72 toward the opposite sides.

The upper blade 71 and the lower blade 72 are opened toward the front from both sides in the left-right direction with respect to the connection post 73, and each opening is called the introduction port 75. Further, the left and right flanges 74 and 74 protrude downward from both end portions in the lateral direction of the upper blade 71 at a position rearward of the introduction port 75. The left and right flanges 74 and 74 are inclined in the left-right direction so that the distance between the left and right directions gradually decreases toward the rear, and are extended rearward so that the interval in the lateral direction is fixed. Further, the left and right flanges 74, 74 protrude slightly upward from both end portions of the lower blade 72 in the lateral direction. Incidentally, the left and right flanges 74, 74 on the lower side have substantially the same shape as the left and right flanges 74, 74 on the upper side. The gap narrowed by the flanges 74 opposed to each other becomes the passage 77 for the chain cloth 3. Further, between the upper blade 71 and the lower blade 72 and at the rear end thereof, an opening which is narrowed by the upper and lower flanges 74 is formed, and the opening is referred to as a meshing opening 76. The engagement port 76 has a substantially rectangular shape. Further, between the upper blade 71 and the lower blade 72, a Y-shaped guide path 78 extending in the front-rear direction is formed by the connecting post 73 and the upper and lower left and right flanges 74. More specifically, the guide path 78 includes a straight line 78a from the connecting post 73 toward the engaging port 76, and two branching paths 78b, which are branched into two strands. That is, the guide path 78 includes branch paths 78b and 78b equal to two sides of the left and right branches of the connecting post 73, and a trunk line 78a which is adjacent to the connecting post 73 which is a branch point of the left and right branching paths 78b and 78b. (in the illustrated example, the rear The side portion extends in a straight line toward the end portion on the rear side of the slider main body portion 7 (the end portion in the direction away from the connecting post 73). In the branching path 78b, the end portions of the upper blade 71 and the lower blade 72 are the inlet-side end portions, and the inlet port is located on the side of the connecting column 73 and is located on the right side of the connecting column 73, and is opposite to the inlet side. The end portions of the upper and lower trunk lines 71 and 72 of the trunk line 78a are the engagement port side end portions. By moving the slider main body portion 7 so that the left and right element rows 4a, 4a in the state separated by the branch path 78b pass through the main line 78a, the left and right element rows 4a are in meshing state and the self-engaging side end portion Extending, the trunk line 78a is also referred to as the engagement path 78a.

Further, the inner surface side of the opposing surface of the upper blade 71 is provided with a flat upper flat portion 71a for suppressing the raised portions 71b on the left and right fastener elements 4, 4 (the left and right meshing head portions 41, 41). The state in which the upper flat portion 71a slightly protrudes toward the lower blade 72 side is formed at least in a range from the connecting post 73 toward the engaging opening 76. More specifically, the upper raised portion 71b includes an upper raised trunk portion 71b1 provided at a portion from the connecting post 73 toward the engaging opening 76 (corresponding to a position at a central portion of the lateral width of the trunk line 78a); and an uplift The branch portion 71b2 is branched from the side of the front end portion of the upper trunk portion 71b1 toward the left and right sides of the connecting post 73 in two sides.

The horizontal width of the upper ridge trunk portion 71b1 is substantially constant at the front portion, and is narrowed toward the rear in the middle portion in the longitudinal direction of the front and rear, and the narrow width is maintained at the rear portion, and the projection is semicircular at the front end portion. The shape. Incidentally, the pawl hole 71c is formed in the upper portion of the upper rear side of the upper trunk portion 71b1, and the pawl hole 71c is formed in the upper and lower directions of the upper blade 71. A stop pawl of a leaf spring (not shown) may be provided to protrude from the pawl hole 71c and to be hidden. Further, if the pawl is stopped, the pull tab 9 is hidden into the pawl hole 71c, and if the tensile force against the pull tab 9 is released, the front end portion of the pawl is stopped from the pawl hole 71c, and is engaged with Chain teeth 4.

Further, the rear end of the upper ridge main line portion 71b1 does not reach the engagement opening 76 (the rear end of the upper wing 71), and the space between the rear end of the upper ridge main line portion 71b1 and the engagement opening 76 is spaced. An upper concave portion 71d is formed on the inner surface of the upper blade 71 at a position corresponding to the interval.

As shown in FIGS. 5 to 10, in the illustrated example, the upper concave portion 71d has a semicircular shape as viewed from the side of the lower blade 72, and the side of the semicircular chord is located at the rear end of the upper blade 71. Further, when viewed from the rear, the upper concave portion 71d is recessed in an arc shape, and the position at which the depression is the deepest is the middle of the lateral width. The shape of the upper concave portion 71d is such that the flat portion 71a which is originally present on the upper side of the upper ridge main line portion 71b1 is gradually recessed toward the rear side by the cutter having the arc-shaped blade portion. The shape that can be formed in the case.

Therefore, the upper concave portion 71d is more recessed than the upper flat portion 71a, and the amount of depression is gradually decreased from the engagement port 76 toward the front. In the illustrated example, the inclined surface portion 71d1 is lowered from the rear toward the front at a fixed inclination angle. In addition, the inclined surface part 71d1 is not limited to the inclination of the fixed inclination angle from the front direction back to the back, and the inclined surface curved in the arc shape from the front to the back. The arc-shaped curved system has an arc shape that is convex toward the lower side or an arc shape that is convex toward the upper side. However, the arc-shaped arc front end which is convex toward the lower side is disposed further forward than the arc front end which is chamfered by the end surface of the upper blade 71.

Further, similarly to the inclined surface portion 71d1 of the upper concave portion 71d, another inclined surface portion 71b3 is provided at the rear portion of the upper raised portion 71b. Further, the inclined surface portion 71d1 of the upper concave portion 71d and the inclined surface portion 71b3 of the upper raised portion 71b have the same inclination angle, and are continuously formed in the same planar shape.

Incidentally, the rear end portion of the upper blade 71 has a positional relationship in which the upper concave portion 71d is disposed at the center portion in the left-right direction, and the left and right portions are horizontally formed on both sides of the upper concave portion 71d in the left-right direction. Upper flat portions 71a, 71a and left and right flanges 74, 74. The upper concave portion 71d is concavely recessed with respect to a plane formed by connecting the planar portions 71a and 71a on both sides of the upper concave portion 71d with an imaginary line. Therefore, the thickness of the flaps 71 on the rear end portion is gradually reduced from the both sides in the left-right direction toward the center portion. Further, the upper and lower planar portions 71a and the lower planar portion 72a are spaced above and below the upper concave portion 71d and the lower concave portion 72d. In the lower interval, the upper concave portion 71d and the lower concave portion 72d are vertically spaced apart from each other in the left-right direction of the upper and lower concave portions 71d and 72d toward the central portion. Further, the continuous portions of the right and left upper flat portions 71a and 71a and the left and right flanges 74 and 74 are inclined surfaces which gradually become larger as the lateral width of the engaging opening 76 is downward.

Further, as shown in FIGS. 6 to 10, on the inner surface of the lower blade 72, a lower flat portion 72a and a lower raised portion 72b (lower ridge trunk portion 72b1) are formed in the same manner as the inner surface of the upper blade 71. The lower raised branch portion 72b2) and the lower concave portion 72d (inclined surface portion 72d1). However, the lower ridge main line portion 72b1 is different from the upper ridge main line portion 71b1 in that the front portion also has the same fixed width as the rear portion.

Further, on the inner surface of the lower blade 72, the left and right recesses 72e, 72e are located on the inner side of the lower and lower flat portions 72a, 72a along the lower ridge portion 72b (more specifically, the lower ridge trunk portion 72b1). Both sides of the direction are formed to reach the engagement opening 76. However, the lower concave portion 72d exists between the left and right grooves 72e and 72e and the lower raised portion 72b, and the lower concave portion 72d has a semicircular shape similarly to the upper concave portion 71d as described above, and the lower end portion of the lower concave portion 72d The width reaches near the outer side of the recess 72e. Therefore, each groove 72e is narrower in width in the vicinity of the engaging opening 76. Incidentally, the left and right grooves 72e and 72e are the retreat portions of the chain cloth 3.

Incidentally, the rear end portion of the lower blade 72 has a positional relationship in which a concave portion 72d is disposed at a central portion in the left-right direction, and a lateral width is narrowly disposed on both sides of the lower concave portion 72d in the left-right direction. The grooves 72e and 72e, the left and right lower flat portions 72a and 72a, and the left and right flanges 74 and 74. Further, the portions of the left and right lower flat portions 72a and 72a and the left and right flanges 74 and 74 are inclined surfaces which gradually become larger as the lateral width of the engaging opening 76 is increased upward.

The upper concave portion 71d and the lower concave portion 72d are vertically spaced apart from each other by the inclined portions 71d1 and 72d1. Further, the upper raised portion 71b and the lower raised portion 72b are present in front of the upper concave portion 71d and the lower concave portion 72d, and the rear end portions are mutually rearward The upper and lower intervals are also continuously narrowed toward the front by the inclined faces 71b3 and 72b3 and the inclined faces 71d1 and 72d1 of the upper and lower recesses 71d and 72d. Further, the upper concave portion 71d and the lower concave portion 72d are spaced apart from each other at the widest position (the center portion in the left-right direction of the rear end) to be twice or more the upper and lower widths of the meshing head portion 41 of the sprocket 4. More specifically, the upper and lower intervals of the widest portion are equal to or larger than the size obtained by adding the upper and lower widths of the meshing head portion 41 of the fastener element 4 to the thickness of the chain cloth 3. On the other hand, the size of the engaging opening 76 is slightly larger than the size of the upper, lower, left and right dimensions in the state in which the left and right sprocket teeth 4, 4 are engaged.

On the upper surface of the slider main body portion 7 and the central portion in the lateral direction thereof, the tab mounting portion 8 is provided in a state of being protruded in a gate shape, and one end portion of the tab 9 is inserted into the tab mounting portion 8 The annular portion 91 is thereby detachably attached to the tab attachment portion 8 in the front-rear direction.

The slide fastener 1 of the first embodiment described above is used in the following order (1) to (4).

(1) First, as shown in Fig. 1, when the user pulls the left and right chain cloths 3, 3 in the left-right direction from the state in which the pair of chain belts 2, 2 are engaged, the self-non-engagement The portion 4a2 applies a pulling force to the engaging row portion 4a1, and the meshing teeth 4 of the engaging row portion 4a1 are forcibly released from each other. As a result, as shown in FIG. 11, the pair of slide fasteners 1 are in a disengaged state (a state in which they are pulled apart) on the rear side of the slider 6 from the engagement port 76. Further, the inside of the slider main body portion 7 in the disengaged state is shown in Fig. 14 .

(2) Next, as shown in Fig. 12, when the slider 6 is retracted, the left and right fastener elements 4, 4 sequentially enter the inside of the slider main body portion 7 (main line 78a) from the engagement port 76. As shown in Fig. 15, at this time, when the slider main body portion 7 is viewed from the rear, the left and right sprocket teeth 4, 4 are inserted so that the meshing head portions 41, 41 of the left and right sprocket teeth 4, 4 overlap each other. The inside of the slider body portion 7. The sprocket 4 that has entered the inside of the slider main body portion 7 is restricted in up, down, left, and right by the upper blade 71, the lower blade 72, and the four flanges 74. Further, among the left and right sprocket teeth 4, 4, the sprocket 4 on the upper side (the left side in the drawing) is inclined upward to the right, the engaging head portion 41 is housed on the side of the upper concave portion 71d, and the sprocket 4 on the lower side (the right side in the drawing) Tilting to the lower left, the engaging head 41 is housed under The recess 72d side.

(3) Further, the upper concave portion 71d and the lower concave portion 72d are spaced upward and downward, and the upper and lower rear end portions of the upper raised portion 71b and the lower raised portion 72b are gradually narrowed toward the front, so that the slider 6 is provided as shown in FIG. Moving backward, the engaging head portion 41 of the lower sprocket 4 is sequentially guided to the inclined surface portion 72d1 of the lower concave portion 72d and the inclined surface portion 71b3 at the rear end of the lower raised portion 72b, thereby being forcibly moved upward. Further, although not shown in Fig. 16, as the slider 6 moves rearward, the meshing head portion 41 of the upper sprocket 4 is forcibly moved downward as it moves forward. As a result, as the slider 6 moves rearward, as shown in FIG. 17, the inclination of the left and right fastener elements 4, 4 gradually becomes gentle, and the meshing heads 41, 41 of the left and right fastener elements 4, 4 gradually become mutually inclined. Engagement, finally, as shown in Fig. 18, between the upper raised portion 71b and the lower raised portion 72b, the engaging head portions 41, 41 of the left and right sprocket teeth 4, 4 are completely engaged with each other.

(4) Further, as the slider 6 moves rearward, the meshing head portions 41 of the left and right sprocket teeth 4, 4 temporarily meshing collide with the connecting post 73, and the left and right sprocket teeth 4, 4 are separated to the left and right. When the slider 6 is retracted, such a series of phenomena occur inside the slider 6, and as shown in Fig. 14, the slider 6 is finally retracted until it collides with the stopper 5. Thereby, the disengaged state is eliminated.

The slide fastener 1 of the first embodiment is attached to the back side of the collar P1 of the hood coat P as shown in Figs. 19 and 20, for example. The collar P1 is in the shape of a bag, and the zipper 1 is normally closed when the cap P2 is housed therein.

When the user wears the cap P2 when wearing the hooded jacket P, if the slider 6 is not operated, and the pair of chain belts 2, 2 are pulled down, the zipper 1 is opened. That is, the user can actively create the disengaged state and open the pair of chain belts 2, 2. For example, in order to allow the clothes other than the hooded jacket P to form a venting portion for dissipating the sweat from the wear to the outside, for example, the zipper 1 may be attached to the underarm or the back portion, in which case Since the zipper 1 is opened by applying a lateral pulling force through the clothes when sweating, the convenience is excellent. Also, it can be used in clothes or bags. So, the user wants to open one of the closures The chain belts 2, 2 can also be completed without operating the slider 6, and as a result, the convenience of the zipper 1 is improved. Further, the slider 6 can be operated to open as usual.

As shown in Fig. 21 and Fig. 22, in the slide fastener 1 according to the second embodiment of the present invention, the slider 61 is different from the slider 6 in the first embodiment, and the pair of fastener tapes 2 and 2 are combined with the first embodiment. One of the pair of chain belts 2, 2 is substantially the same (the stopper 5 is provided two before and after the element row 4a).

Here, the slider 61 functions not only to advance, but also to close the pair of chain belts 2, 2 when retracting. As a result, when the slider 61 advances and retreats, the slide fastener 1 that cannot be opened by the movement of the slider 61 is formed. Specifically, the slider 61 has a structure in which the sliders 6 of the first embodiment are joined to each other in a vertically symmetrical manner on the side of the connecting post 73. More specifically, the connecting post 73 is longer in the front-rear direction than the connecting post 73 in the first embodiment, and the upper flap 71 and the lower flap 72 are also the upper flap 71 and the lower flap in the first embodiment. 72 is longer before and after. Further, a connecting post 73 is interposed between the upper and lower flaps 71 and the intermediate portion of the lower flap 72 in the front-rear direction. Further, the flange 74 is provided at the end portion in the lateral direction and the rear portion of the upper blade 71 and the lower blade 72, respectively, and the guide passage 78 is vertically symmetrically centered on the front end side of the branch path 78b. In the first embodiment, the Y-shaped guide path 78 is continuous. That is, the guide path 78 includes left and right branch paths 78b and 78b which are branched into two branches, and two main lines 78a and 78a which are connected to the two branch points of the left and right branch paths 78b and 78b. In the vicinity of 73, both sides in the front-rear direction (the front side and the rear side of the connecting post 73) extend in a straight line toward the front and rear ends. Incidentally, regarding the two branch points, depending on the observation method, one may be set as a branch point and the other as a merge point. Further, the pair of introduction ports 75 and 75 provided on both sides of the connecting column 73 in the left-right direction are located at the intermediate portion in the front-rear direction, and the opening is formed by the upper blade 71, the lower blade 72, and the upper and lower flanges 74 on the front side. .

This opening is referred to as a front engagement port 79, and the front engagement port 79 is located symmetrically with the engagement opening 76. Further, in the vicinity of the front engagement opening 79, similarly to the vicinity of the engagement opening 76, the upper concave portion 71d and the lower concave portion 72d are formed in front of the inner surfaces of the upper blade 71 and the lower blade 72.

As shown in Fig. 23 and Fig. 24, the slide fastener 1 of the third embodiment is the same as the first embodiment except that the slider 62 is different from the slider 6 in the first embodiment.

Here, the slider 62 is formed with an upper concave portion 71d and a lower concave portion 72d horizontally with respect to the upper flat portion 71a and the lower flat surface portion 72a, and is formed in a stepped shape in which the amount of depression is fixed in the front-rear direction and the left-right direction, and the respective bottom surfaces are provided. It is assumed to be the flat portions 71d2 and 72d2. Therefore, the boundary portion between the upper raised portion 71b and the upper concave portion 71d and the boundary portion between the lower raised portion 72b and the lower concave portion 72d are both stepped. Moreover, the upper concave portion 71d and the lower concave portion 72d have a rectangular shape when viewed from the rear.

When the pair of chain belts 2, 2 are in the disengaged state, when the user moves the slider 62 backward, the left and right sprocket teeth 4, 4 (not shown) are self-engaging by the upper concave portion 71d and the lower concave portion 72d. The port 76 enters the guide path 78 to the slider 62. Since the upper concave portion 71d and the lower concave portion 72d have the bottom surface as the flat surface portions 71d2 and 72d2, even if the left and right sprocket teeth 4 and 4 move forward in the upper concave portion 71d and the lower concave portion 72d, the upper concave portion 71d and the lower concave portion 72d are placed above and below. The interval will not shrink. However, due to the merging portion of the Y-shaped guide path 78, the left and right sprocket teeth 4, 4 are engaged with each other, and the left and right sprocket teeth 4, 4 are supported by the upper wing plate 71, the lower wing plate 72, and the left and right flanges 74. 74 is restricted to the up, down, left and right, so that the left and right sprocket teeth 4, 4 gradually mesh with each other as the left and right sprocket teeth 4, 4 face forward.

The present invention is not limited to the above-described embodiments, and can be appropriately modified without departing from the scope of the invention. For example, the number of the sliders 6 and 62 for the zipper 1 is one in the case of the guide path 78 having the Y-shape as in the first and third embodiments described above, but the number is not limited thereto. It can also be two. In this case, the connecting columns 73 and 73 of the two sliders 6 and 62 are in a positional relationship in the front-rear direction (the Y-shaped guide path is in a positional relationship of front and rear symmetry), and two slides are used. The pieces 6, 62 are attached to the left and right chain belts 2, 2. In this way, even if the sliders 6, 62 are disengaged from the main trunk side with respect to the two, the sliders 6, 62 can be eliminated by moving the sliders 6, 62 away from the other sliders 6, 62. Disengaged state.

Moreover, in the case of viewing from the up and down direction, the shape of the upper concave portion 71d and the lower concave portion 72d The shape is semicircular in the above embodiment, but the shape is not limited thereto, and may be other shapes such as a rectangular shape. Further, the upper concave portion 71d and the lower concave portion 72d have a rectangular shape as viewed from the rear as in the third embodiment, but may be an inclined surface portion in which the amount of depression gradually decreases toward the front as in the first embodiment. Further, the upper concave portion 71d and the lower concave portion 72d are provided in the center portion of the upper blade 71 and the lower blade 72 in the left-right direction in the above embodiment, but may be provided over the entire space between the left and right flanges 74 and 74.

Further, the non-engagement portion 4a2 is not limited to the above-described embodiment in which the engagement head portion 41 of the sprocket 4 is cut, and the engagement head portion 41 may not protrude in the front-rear direction as in the reversing portion 43. Further, the element row 4a uses the continuous element 4b in the above embodiment, but the present invention is not limited thereto, and may be formed by attaching a plurality of elements 4 at intervals in the front-rear direction. In this case, with respect to the element row 4a, the engagement row portion 4a1 is formed by attaching the fastener elements 4 to the chain cloth 3 at equal intervals in the front-rear direction, and the non-engagement portion 4a2 is formed so that the fastener elements 4 are not attached. In the state of the chain cloth 3.

Further, in the above-described embodiment, the flange 74 is provided in a total of four on the right and left sides of the upper blade 71 and the lower blade 72. However, the flange 74 is not limited thereto, and may be two flanges 74 from the upper blade 71 or the lower side. Any one of the flaps 72 protrudes left and right.

Further, the upper flat surface portion 71a and the lower flat surface portion 72a are provided separately from the inner surfaces of the upper blade 71 and the lower blade 72 in the above-described embodiment, with the upper raised portion 71b and the lower raised portion 72b as the center. The right and left, but not limited thereto, may be of the type of the upper raised portion 71b and the lower raised portion 72b, that is, may be continuously provided on the right and left inner surfaces of the upper blade 71 and the lower blade 72.

Further, the sliders 6, 61, and 62 include the slider body portion 7, the tab attaching portion 8, and the pull tab 9 in the above embodiment, but the present invention is not limited thereto, and may be of the type without the tab attaching portion 8, that is, It may also be the one including the slider main body portion 7 and the pull tab 9 (the pull tab 9 is fixed to the slider main body portion 7).

6‧‧‧Sliding parts

7‧‧‧Sliding body

8‧‧‧ Pulling plate installation

9‧‧‧ Pulling

71‧‧‧Upper wing

71a‧‧‧Upper plane

71d‧‧‧Upper recess

72‧‧‧lower wing

72a‧‧‧ lower plane

72d‧‧‧dove

74‧‧‧Flange

75‧‧‧Import

77‧‧‧ Passing through the mouth

91‧‧‧Rings

Claims (10)

A slide fastener for a slide fastener, comprising: a slider main body portion (7) and a slide fastener (6, 61, 62) provided on the upper surface side of the slider main body portion (7); The slider body portion (7) includes: an upper wing plate (71) and a lower wing plate (72) that are opposed to each other with an upper and lower spacing; and a connecting column (73) that connects the upper wing plate (71) with The lower wing plates (72) are vertically connected to each other at a central portion in the left-right direction; and the flange (74) is formed from at least one of the upper blade plate (71) and the lower blade plate (72) and two of the left and right directions. The end portion protrudes in a direction to reduce the upper and lower intervals; the slide fastener is characterized in that the connecting post (73) and the convex portion are between the upper wing plate (71) and the lower wing plate (72) The edge (74) is formed by extending the guiding path (78) in the orthogonal direction with respect to the vertical direction and the horizontal direction; the guiding path (78) includes a branching path (78b) on the connecting post (73) a left-right branch; and an engagement path (78a) that faces the end of the slider main body portion (7) located in the orthogonal direction from a vicinity of the connection post (73) which is a branch point of the left and right branch paths (78b) Department At least a central portion of the inner surface of the upper side of the wing plate (71) and the lower wing plate (72) and the left and right sides thereof, and the end portion on the side of the meshing path (78a) is provided with an upper concave portion (71d) And the lower concave portion (72d); the upper and lower intervals of the upper concave portion (71d) and the lower concave portion (72d) are gradually reduced toward the connecting post (73) over the entire length in the orthogonal direction. The slide fastener for claim 1, wherein the upper concave portion (71d) and the lower concave portion (72d) have a slope in which the vertical interval is gradually reduced toward the connecting post (73) over the entire length in the orthogonal direction. Face. The zipper slide of claim 2, wherein the inner surface of the upper wing plate (71) and the lower wing plate (72) opposite to each other is provided to extend from the connecting post (73) toward the end portion a raised portion (71b) and a raised portion (72b) extending from the connecting post (73) toward the end portion, and the upper concave portion (71d) and the lower concave portion (72d) are disposed on the upper raised portion (71b) And the lower raised portion (72b) is formed closer to the end portion side of the slider main body portion (7). A sliding member for a zipper according to any one of claims 1 to 3, wherein the inner surface of the upper wing plate (71) and the lower wing plate (72) are opposite to each other, and the flange (74) of the right and left sides Further, an upper flat portion (71a) and a lower flat portion (72a) are provided on the inner side in the left-right direction, and the upper concave portion (71d) is disposed at a central portion in the left-right direction of the upper flat surface portion (71a), and the lower flat portion (72a) The lower concave portion (72d) is disposed at a central portion in the left-right direction; and the upper flat portion (71a) and the lower flat surface portion (72a) are vertically spaced apart from the upper concave portion (71d) and the lower concave portion (72d). The above-mentioned upper and lower intervals are formed. The slide fastener for a zipper according to claim 4, wherein the vertical interval between the upper concave portion (71d) and the lower concave portion (72d) is gradually increased from the both sides in the left-right direction toward the central portion. A zipper, comprising: a slide fastener (6, 61, 62) according to any one of claims 1 to 5; and a left and right chain belt (2) mounted on the orthogonal direction Moving the above-mentioned sliders (6, 61, 62); and the above-mentioned chain belts (2) include: left and right chain cloths (3), which are opposite to each other; and left and right chain tooth rows (4a), etc. a plurality of fastener elements (4) mounted in the orthogonal direction on the opposite side edges of the respective link fabrics (3); and the left and right fastener element rows (4a) are inserted into the slider (6, 61, 62). The zipper of claim 6, wherein the left and right sprocket rows (4a) are provided with an engaging portion that alternately normally engages one of the plurality of sprocket teeth (4) in a specific shape. In addition to (4a1), the non-engaging portion (4a2) or the sprocket (4) substantially not having the sprocket (4) and the left and right chain cloths (3) substantially opposite each other are provided. The aforementioned part of the sprocket (4) of the row portion (4a1) is weakly meshed with each other Weak meshing portion. The zipper of claim 6 or 7, wherein the slider (61) is inserted into the left and right of the sprocket in a state in which the meshing path (78a) is provided on both sides of the connecting column (73) in the orthogonal direction. Row (4a). According to the zipper of claim 6 or 7, two of the above-mentioned links (6, 62) are attached to the left and right chain belts (2), and the above-mentioned connecting columns (73) of the two sliding members (6, 62) are mutually connected. It is in the positional relationship of the opposite directions in the above orthogonal direction. A zipper comprising one or two slide fasteners (6, 61, 62) and left and right chain straps (2) and having the above-mentioned one or two sliders (6, 61, 62) The above-mentioned chain belts (2) which are movable in the orthogonal direction with respect to the up-and-down direction and the left-right direction, the one or two slide fasteners (6, 61, 62) include a slider main body portion ( 7) and a pull tab (9) provided on an upper surface side of the slider main body portion (7), the slider main body portion (7) comprising: an upper flap (71) and a lower flap (72), etc. a connecting column (73) that vertically connects the upper blade (71) and the lower blade (72) in a central portion of the left and right sides; and a flange (74) At least one of the upper blade (71) and the lower blade (72) and the both ends in the left-right direction protrude in a direction in which the vertical spacing is reduced; and the one or two sliders (6, 61, 62) The whole is between the upper wing plate (71) and the lower wing plate (72), and includes a branch road (78b) on the left and right branches of the connecting column (73), and the branch road (which is a left and right side) The vicinity of the above-mentioned connecting column (73) at the branch point of 78b) is oriented toward the position The guide path (78) of the meshing path (78a) at the end of the slider main body portion (7) in the orthogonal direction is formed symmetrically in the orthogonal direction around the connecting post (73) side. The above-mentioned chain belt (2) includes: left and right chain cloths (3), which are opposite to each other; and left and right chain tooth rows (4a), which are included on opposite sides of the above-mentioned respective chain cloths (3) a plurality of sprocket (4) having a rim portion mounted along the orthogonal direction; and the left and right sprocket rows (4a) are inserted to In the above-mentioned guide path (78) of the above-mentioned sliders (6, 61, 62); the above-mentioned element rows (4a) of the left and right are provided with a part of the sprocket (4) of the plurality of sprocket (4) In addition to the meshing row portion (4a1) in which the specific shape is alternately normally meshed, the non-engaging portion (4a2) substantially not facing the fastener element (4) and the left and right chain cloths (3) substantially opposite thereto, Or a weak meshing portion in which the aforementioned sprocket teeth (4) are weakerly engaged with each other than the above-mentioned partial sprocket (4) of the engaging row portion (4a1).