CN105188456A - Slide fastener - Google Patents

Abstract

This slide fastener (1, 2) has a stop (30, 70) against which the back opening end of a slider (20, 60) abuts. The end of the stop (30, 70) that abuts against the slider (20, 60) has a rotation-promoting section for promoting the rotation of the slider (20, 60) in a specified direction when the left or right fastener stringer (10, 50) is subjected to a transverse pulling force. Smooth sliding operation of the slider (20, 60) can thereby be stably secured because it is more difficult for the fastener elements (12, 52) to be snagged on the outer wall side of the flange sections (25a, 25b, 65a, 65b) of the slider (20, 60).

Description

Slide fastener

Technical field

The present invention relates to the slide fastener being disposed with multiple slide fastener coupling element at the band side edge part of zipper strip, particularly stop member is to be fixed on the slide fastener of left and right zipper teeth chain with an end continuous print mode of left and right chain denture.

Background technology

In general, slide fastener has: pair of right and left zipper teeth chain, and the opposed band side edge part of pair of right and left zipper strip is formed with chain denture along strip length direction; Pull head, can be installed on left and right chain denture slidably; First stop member (sometimes also referred to as lower stop member), with an end of left and right chain denture continuously and be fixed on left and right zipper teeth chain, and to abut with the deutostoma side end of pull head; And second stop member (sometimes also referred to as upper stop member), be individually fixed in left and right zipper teeth chain in the other end of left and right chain denture, and abut with the shoulder mouth side end of pull head.

Left and right zipper teeth chain has: multiple slide fastener coupling elements of the banded zipper strip comprising band main part and band side edge part (chain tooth installation portion) and the band side edge part being installed on zipper strip, and is formed each chain denture of left and right zipper teeth chain by the multiple slide fastener coupling elements being installed on each zipper strip.

In this case, slide fastener coupling element is installed on zipper strip with the installing space of regulation.In addition, the position of each slide fastener coupling element is combined left and right zipper teeth chain with the size of the half of installing space (that is, the size of half pitch) along strip length direction relativity shift relative to the slide fastener coupling element on pairing zipper teeth chain.

In addition, as one of the form of slide fastener coupling element, there will be a known the slide fastener coupling element formed on zipper strip by synthetic resin injection moulding.The slide fastener coupling element that should be formed by injection moulding is generally had: the main part being fixed on zipper strip; Neck, extends from main part to band foreign side and possesses the shape of shrinking in the mode of the size (chain tooth width) constriction strip length direction; And engageable head, give prominence to from neck and present Long Circle.

Pull head possesses: slider body, possesses the chain tooth path of navigation of roughly Y-shaped shape between the upper and lower fin having linked shoulder mouth side end utilizing guide post; Climbing with drawing, can be held in rotationally to draw and climb erection column, described in draw and climb the upper panel that erection column is configured at slider body.In addition, on slider body, along the left and right sides edge of upper and lower fin, be symmetrically formed with left and right flange part.By making such pull head slide along chain denture, left and right chain denture engagement can be made, or make the engagement releasing of chain denture.

In addition, in order to limit the sliding scale of such pull head, and prevent pull head from coming off from chain denture, as mentioned above, the first stop member and the second stop member is configured with in the mode be connected with chain denture, described first stop member is fixed on an end (rearward end) side of left and right zipper teeth chain, and described second stop member is fixed on the other end (leading section) side.

About such slide fastener, such as in the real public clear 56-37605 publication (patent document 1) of Japan, disclose a kind of slide fastener, consider the relativeness of slide fastener coupling element, pull head and the first stop member (lower stop member), when horizontal pulling force on the direction preventing left and right zipper teeth chain under the state contacted with the first stop member at pull head to be separated from each other, the tensile splitting strength of slide fastener declines.

As shown in figure 11, the slide fastener 80 recorded in this patent document 1 has: left and right zipper teeth chain 81, zipper strip 83 has installed multiple slide fastener coupling element 82 with the installing space of regulation and has formed; Pull head 90, the chain denture along left and right zipper teeth chain 81 is slided; And first stop member 100, cross over left and right chain denture and be fixed on an end of left and right zipper teeth chain 81.

In addition, in the following description, fore-and-aft direction refers to the length direction of zipper strip 83, especially, slide making pull head 90 thus make the engagement of left and right chain denture and the direction of locking slide fastener 80 as front, slide making pull head 90 thus left and right slide fastener coupling element 82 is separated and the direction of opening slide fastener 80 as rear.

Left and right directions refers to the bandwidth direction of zipper strip 83, is to be parallel to the zone face of zipper strip 83 and the direction orthogonal with strip length direction.In addition, above-below direction refers to the band positive and negative direction of zipper strip 83, especially, draws the direction of the side climbed as top, using the direction of its opposition side as below using what be configured with pull head 90 relative to zipper strip 83.

The first stop member 100 in this patent document 1 has: the base portion 101 abutted with the deutostoma side end of pull head 90 and be configured at the Embedded Division 102 of chain denture side end (leading section) of base portion 101 via step.Embedded Division 102 and the slide fastener coupling element 82 of the first stop member 100 form.In addition, during by abutting at the base portion 101 making pull head 90 with the first stop member 100, Embedded Division 102 inserts and embeds in the chain tooth path of navigation of pull head 90, prevents this pull head 90 to tilt clockwise or counterclockwise relative to strip length direction.

The slider body 91 of the pull head 90 in patent document 1 has: upper and lower fin 92; Guide post 93, between the end linking upper and lower fin 92; And left and right flange part 94a, 94b, the left and right sides edge along upper and lower fin 92 configures.In addition, be formed with the chain tooth path of navigation of roughly Y-shaped between upper and lower fin 92, described chain tooth path of navigation is communicated with the deutostoma of two the shoulder mouths being formed at the left and right sides of guide post 93 and another side being formed at upper and lower fin 92.

In addition, in the pull head 90 of patent document 1, make the position on the strip length direction of the shoulder mouth side edge of each flange part 94a, 94b mutually different and mutually asymmetricly form left and right flange part 94a, 94b.Such as when shown in Fig. 9 pull head 90, although the position on the strip length direction of the deutostoma side edge of left and right flange part 94a, 94b is set in roughly the same position, be set as that at front side the position of the position of shoulder mouth side edge (front-end edge) of left side flange part 94a than shoulder mouth side edge (front-end edge) of side flange portion 94b is further from deutostoma.The length (size along the left and right lateral margin of upper and lower fin 92) of left side flange part 94a is longer than the length of side flange portion 94b.

Particularly in patent document 1, the length setting of left side flange part 94a is: under the state that pull head 90 abuts with the base portion 101 of the first stop member 100, and left side flange part 94a, the contact area of slide fastener coupling element 82a (hereinafter referred to as takeing on mouth side chain tooth) contacted with the end (leading section) of the most shoulder mouth side of flange part 94a on the left of this become the over half of size on the strip length direction of the main part of slide fastener coupling element 82.

In addition, the length setting of side flange portion 94b is: under the state that pull head 90 abuts with the base portion 101 of the first stop member 100, and side flange portion 94b, the contact area of slide fastener coupling element (takeing on mouth side chain tooth) 82a contacted with the end (leading section) of the most shoulder mouth side of this side flange portion 94b become the over half of size on the strip length direction of the main part of slide fastener coupling element 82.

Namely, because the position in strip length direction is installed on each zipper strip 83 with the size relativity shift of half pitch by left and right slide fastener coupling element 82 usually in a manner described mutually, in patent document 1, by changing the length of left side flange part 94a and side flange portion 94b, left and right each flange part 94a, 94b can contact with respective shoulder mouth side chain tooth 82a in the region over half of size on the strip length direction of the main part of slide fastener coupling element 82.

Here, the situation of illustrative examples slide fastener of pull head as there is left and right flange part being equal length and mutually symmetrically configuring.Have in the pull head of equal length at left and right flange part, the position of the shoulder mouth side edge of flange part is configured relative to shoulder mouth side chain tooth coupling, thus under the state abutted with the base portion of the first stop member at pull head, the side in the flange part of left and right becomes the measure-alike size on the strip length direction of the main part of slide fastener coupling element with the contact area of shoulder mouth side chain tooth.In this case, the opposing party's flange part of this pull head is configured to: due to the difference of the relative position on the strip length direction between the slide fastener coupling element of left and right, is less than the half of the size on the strip length direction of the main part of slide fastener coupling element with the contact area of shoulder mouth side chain tooth.

Under the state that such pull head abuts with the first stop member, when horizontal pulling force on the direction that left and right zipper teeth chain is separated from each other, due to the effect of described horizontal pulling force, the shoulder mouth side chain tooth being less than the half of the size on the strip length direction of main part with the contact area of flange part along flange part relative to pull head to takeing on mouth Slideslip and mobile, and the power on the direction that rotates of the mode that the spacing of engageable head side is opened wide is applied on this shoulder mouth side chain tooth.

As a result, shoulder mouth side chain tooth is sometimes easy exceeds the shoulder mouth side edge of flange part and the outside to pull head is deviate from the chain tooth path of navigation of pull head, and is easily stuck in the outer wall side of flange part to the shoulder mouth side chain tooth deviate from outside this.

Like this, when takeing on mouth side chain tooth and being stuck in the outer wall side of flange part, the movement of pull head is subject to the obstruction of this shoulder mouth side chain tooth, and pull head can not be made to slide swimmingly towards the engagement direction of chain denture.And in this case, the user due to slide fastener sometimes wants to make pull head to slide and pulls by force and climb, and likely producing pull head is separated from chain denture and comes off thus slide fastener can not be closed; Pull head, slide fastener coupling element and zipper strip are subject to excessive power and damaged such unfavorable condition.

On the other hand, in patent document 1, as previously mentioned, form pull head 90 as follows: make the length of left and right flange part 94a, 94b of pull head 90 mutually different, and shoulder mouth side chain tooth 82a in the region over half of each flange part 94a, 94b size on the strip length direction of the main part of slide fastener coupling element 82 with respective is contacted.

Therefore, under the state that the pull head 90 of patent document 1 abuts with the base portion 101 of the first stop member 100, even if left and right zipper teeth chain 81 is subject to horizontal pulling force, also stably maintain the state that left and right each flange part 94a, 94b abuts with shoulder mouth side chain tooth 82a, can make that shoulder mouth side chain tooth 82a exceeds the shoulder mouth side edge of flange part 94a, 94b in the chain tooth path of navigation of pull head 90 and the state of affairs of deviating from laterally is difficult to generation.

Therefore, in the slide fastener 80 of patent document 1, improve the intensity relative to horizontal pulling force (tensile splitting strength) under the state opened at slide fastener 80, in addition, the unfavorable condition that outer wall side become problem in slide fastener 80 before this, that be stuck in flange part 94a, 94b by shoulder mouth side chain tooth 82a can be made to cause is difficult to produce.

In addition, as the one of slide fastener, all the time, there will be a known and be used in the slide fastener such as wet suit or boot the opening/closing portion of goods or opening portion are installed, and possess the liquid such as anti-sealing enter inner water proofing property (water proof structure) slide fastener (hereinafter referred to as water proofing property slide fastener) when the locking of this opening/closing portion or opening portion.

Water proofing property slide fastener has usually: the pair of right and left zipper teeth chain being formed with chain denture on the band side edge part of water proofing property band possessing synthetic resin watertight composition and the pull head that can slide along chain denture.Such water proofing property slide fastener makes the opposite side edge of left and right water proofing property band intimate contact with one another by making left and right chain denture engagement, thus placed water via left and right water proofing property interband from band face side invaded zone rear side (or from band rear side invaded zone face side).

In addition, in water proofing property slide fastener, configure the first and second stop members respectively through an end of chain denture of being everlasting and the other end, by the sliding scale of these first and second stop members restriction pull head.

One example of such water proofing property slide fastener is disclosed in such as International Publication No. 2011/077570 pamphlet (patent document 2) etc.

The feature of water proofing property slide fastener recorded in this patent document 2 is to have the first stop member that the deutostoma side end for pull head abuts.

Below specifically describe, the first stop member in patent document 2 is by being fixed on left and right water proofing property band with crossing over left and right chain denture by synthetic resin injection moulding.In addition, first stop member links with the main part being configured at the slide fastener coupling element (hereinafter referred to as rearmost end chain tooth) of the first stop member side formed in the slide fastener coupling element of left and right chain denture, and abut end (leading section) at the pull head of the first stop member, in the position opposed with the engageable head of this rearmost end chain tooth, be provided with the recess arranged towards rear depression.The engageable head of this rearmost end chain tooth is externally exposed.

Owing to being formed with such recess in the first stop member, the engageable head of rearmost end chain tooth is contained in recess, and makes it to expose under the state that the opposed end face of left and right zipper strip can be made in recess mutually to crimp.

According to patent document 2, by forming the first stop member of water proofing property slide fastener in a manner described, the water proofing property around the first weak stop member of zipper strip clinging force each other can be improved, in addition, prevent the molten resin when the injection moulding of the first stop member to flow into unnecessary position, the manufacture of slide fastener is easier to.

In addition, in this patent document 2, as variation, describe the water proofing property slide fastener that the form of the first stop member is different.

First stop member of the water proofing property slide fastener of the variation of this patent document 2 is by being fixed on left and right water proofing property band with crossing over left and right chain denture by synthetic resin injection moulding.In addition, end (leading section) is abutted at the pull head of this first stop member, the recess arranged that to cave in towards rear is provided with in the position opposed with the engageable head of rearmost end chain tooth, and in the left and right sides of leading section clipping this recess, be configured with the first outstanding toward the front protuberance and the second protuberance.

In this case, the first protuberance of the first stop member links with the mode and this rearmost end chain tooth that cover the part on the surface of rearmost end chain tooth.In addition, the second protuberance forwards extends outstanding and is formed compared with the first protuberance, thus the pairing slide fastener coupling element engaged with rearmost end chain tooth links.

In the water proofing property slide fastener of such variation, also can obtain above-mentioned effect.In addition, in the water proofing property slide fastener of the variation of patent document 2, as mentioned above, although the outstanding length of the first protuberance in the first stop member is different from the outstanding length of the second protuberance, do not specifically describe the standoff distance etc. on the size of each outstanding length, strip length direction between the front end face of the first protuberance and the front end face of the second protuberance.

In addition, in patent document 2, do not consider to discuss in above-mentioned patent document 1, when under the state that pull head abuts with the first stop member, left and right zipper teeth chain is subject to horizontal pulling force, the shoulder mouth side chain tooth of side's zipper teeth chain is easily deviate from laterally and is stuck in the such problem of the outer wall side of flange part in the chain tooth path of navigation of pull head.

At first technical literature

Patent document

Patent document 1: the real public clear 56-37605 publication of Japan

Patent document 2: International Publication No. 2011/077570 pamphlet

Summary of the invention

The problem that invention will solve

In the slide fastener 80 recorded in patent document 1, as mentioned above, by changing the left side flange part 94a of pull head 90 and the length of side flange portion 94b, when under the state that pull head 90 abuts with the first stop member 100, left and right zipper teeth chain 81 is subject to horizontal pulling force, the shoulder mouth side chain tooth 82a of side's zipper teeth chain 81 is difficult to deviate from laterally in the chain tooth path of navigation of pull head 90.

And, as described in Patent Document 1, the pull head 90 that the length of left and right flange part 94a, 94b is different must be different according to the size equal-specification of slide fastener coupling element slide fastener, design, manufacture the special pull head of the length suitably setting left and right flange part respectively accordingly with the slide fastener coupling element of each slide fastener.As a result, the versatility of pull head reduces, and causes the increase of the production cost of slide fastener.Therefore, expect to utilize the pull head that the general left and right flange part used all the time symmetrically configures, and the exploitation of the slide fastener of the effect same with patent document 1 can be obtained.

On the other hand, in the water proofing property slide fastener that patent document 2 is recorded, zipper teeth chain is formed being with the multiple synthetic resin slide fastener coupling element of injection moulding on water proofing property band positive and negative being formed with synthetic resin watertight composition.

In addition, in order to ensure the flexibility of zipper strip, the watertight composition being formed at water proofing property band has elasticity usually.Therefore, be fixed on each slide fastener coupling element of water proofing property band such as when independent slide fastener coupling element is subject to strong external force partly, the position of slide fastener coupling element offsets sometimes a little.

Therefore, such as, in the water proofing property slide fastener of the identical pull head of the length with left and right flange part, under the state that pull head abuts with the first stop member, when left and right zipper teeth chain is subject to horizontal pulling force, due to the contact area of the shoulder mouth side chain tooth and flange part that are configured at side's zipper teeth chain be the main part of slide fastener coupling element strip length direction on size over half, can prevent this shoulder mouth side chain tooth from deviating from laterally in the chain tooth path of navigation of pull head.

But the contact area of the shoulder mouth side chain tooth and flange part that are configured at the opposing party's zipper teeth chain is less than the half of the size on the strip length direction of the main part of slide fastener coupling element.And this shoulder mouth side chain tooth is subject to strong external force partly from flange part, easily offsets relative to the relative position of zipper strip.

As a result, in water proofing property slide fastener, the shoulder mouth side chain tooth being configured at its opposing party's zipper teeth chain is easily also mobile to shoulder mouth Slideslip along flange part relative to pull head, thus deviates from laterally in the chain tooth path of navigation of pull head further.Therefore, as mentioned above, easily produce shoulder mouth side chain tooth and be stuck in the outer wall side of flange part and the unfavorable condition that hinders the slip of pull head such, in addition, result, likely brings the breakage of the slide fastener component parts such as the coming off of pull head, pull head or slide fastener coupling element.

The present invention completes in view of above-mentioned problem in the past, its concrete object is to provide a kind of slide fastener, its pull head with versatility that left and right flange part can be utilized symmetrically to configure, and under the state abutted with stop member at the deutostoma side end of pull head, even if left and right zipper teeth chain is subject to horizontal pulling force, slide fastener coupling element also can be made to deviate from from the outside to pull head in chain tooth path of navigation and the state of affairs that is stuck in the outer wall side of flange part is difficult to produce.

For the means of dealing with problems

For reaching above-mentioned purpose, as basic comprising, had by slide fastener provided by the invention: pair of right and left zipper teeth chain, the multiple slide fastener coupling element of spread configuration on the opposed band side edge part of left and right zipper strip and form chain denture, the pull head that can slide along described chain denture, and stop member, continuous with an end of the described chain denture in left and right, cross over the described zipper strip in left and right and fix, abut with the deutostoma side end of described pull head, described pull head has: upper and lower fin, guide post, between the shoulder mouth side end linking described upper and lower fin, and left and right flange part, on described, the left and right sides edge of lower panel symmetrically configures, the topmost of described slide fastener is characterised in that: the abutting end of the side of the described pull head abutting of confession of described stop member has rotation promotion division, during horizontal pulling force on the direction that the described zipper teeth chain in left and right is separated from each other under the state that described pull head contacts with a part for this abutting end, described rotation promotion division promotes the rotation of described pull head, make the direction of described pull head towards in the described slide fastener coupling element in left and right of the ends contact of the most shoulder mouth side with the described flange part in the left and right of described pull head, with the described slide fastener coupling element lopsidedness that the contact area of described flange part is little.

In slide fastener of the present invention, preferably, by making the relative position of the opposed end face of pull head on strip length direction towards described chain denture side of described stop member, different and form described rotation promotion division on bandwidth direction.

In addition, in slide fastener of the present invention, preferably, contact in the region over half of the size of the described slide fastener coupling element in left and right on the strip length direction of the main part of each slide fastener coupling element of the described flange part in left and right of postrotational described pull head, the ends contact in the most shoulder mouth side of this flange part.

And in slide fastener of the present invention, preferably, the described pull head opposite end mask of described stop member has the inclined plane tilted relative to the bandwidth direction of described zipper strip.

In addition, preferably, described stop member has: cross over the described zipper strip in left and right and fixing stop member body and from the described stop member body protuberance outstanding to described chain denture side.

In slide fastener of the present invention, preferably, the interval on the strip length direction between the shoulder mouth side edge position of the described flange part in left and right of postrotational described pull head has the size over half of the size on the strip length direction of the main part of described slide fastener coupling element.

In addition, preferably, at least one party's zone face of described zipper strip is formed with plastic watertight composition.

The effect of invention

Slide fastener of the present invention has pair of right and left zipper teeth chain; Be configured with the pull head of left and right flange part symmetrically; And be fixed on an end of left and right zipper teeth chain and the stop member (the first stop member) abutted with the deutostoma side end of pull head.In addition, the abutting end for pull head abutting side of stop member has rotation promotion division, described rotation promotion division pull head with abut left and right zipper teeth chain under state that the part of end contacts be subject to horizontal pulling force time, promote the rotation of pull head, make the direction of pull head towards in right and left shoulders mouth side chain tooth (with the slide fastener coupling element of the ends contact of the most shoulder mouth side of the flange part of pull head), with the little shoulder mouth side chain tooth of the contact area of flange part (specifically, the shoulder mouth side chain tooth of the half of the size on the strip length direction of the main part of slide fastener coupling element is less than with the contact area of flange part) roll tiltedly.

If have the slide fastener of the present invention of stop member, described stop member possesses above-mentioned rotation promotion division, the state then abutted with stop member at the deutostoma side end of pull head (namely, the state that slide fastener is opened) under, when left and right zipper teeth chain is subject to horizontal pulling force, pull head can be made towards the shoulder mouth side chain tooth side less with the contact area of flange part in right and left shoulders mouth side chain tooth, rotate abreast with the zone face of zipper strip and make pull head towards easily tilting.

Here, specifically, pull head towards referring to when the overlooking or look up of slide fastener, towards the direction of the central axis on the width of the upper and lower fin of slider body.In addition, in the present invention, size on the strip length direction of the main part of slide fastener coupling element refers to the size on the strip length direction of the main part under the state of left and right slide fastener coupling element engagement substantially, instead of refers to the size on the actual strip length direction (pull head glide direction) of the main part under the state that obliquely tilts in the direction of zipper strip partly warpage and slide fastener coupling element.

In the present invention, as mentioned above, tilt to prescribed direction because pull head is subject to horizontal pulling force, the shoulder mouth side chain tooth little with the contact area of flange part can be made relative to pull head from chain tooth path of navigation towards the outside relative movement of takeing on mouth.By making shoulder mouth side chain tooth relative to pull head displacement energetically like this, even if left and right zipper teeth chain is subject to horizontal pulling force, this shoulder mouth side chain tooth also can be made to be difficult to be stuck in the outer wall side of flange part.

Thus, the unfavorable condition in the past that the outer wall side being stuck in flange part by shoulder mouth side chain tooth owing to being difficult to generation causes, in slide fastener of the present invention, the movement of pull head can not be subject to shoulder mouth side chain tooth and hinder, and pull head can be made to slide swimmingly towards the engagement direction of chain denture.In addition, owing to also pull head will be made to slide by irrational power, pull head, slide fastener coupling element and zipper strip also can be prevented to be subject to excessive power and damaged.

In slide fastener of the present invention, the rotation promotion division of stop member is different and form on bandwidth direction by the relative position on the strip length direction of the opposed end face of pull head towards chain denture side of stop member.Such as, if rotate promotion division to pass through at the opposed end face of the pull head of stop member, make the position on the strip length direction in the first opposed region (such as opposed region, left side) opposed from the corner portion, left and right one of the deutostoma side end of pull head and the second opposed region opposed with the opposing party bight (such as opposed region, right side) mutually different and form, then can when left and right zipper teeth chain be subject to horizontal pulling force, stably promote the rotation of pull head, make tilting towards to prescribed direction of the pull head contacted with this stop member.

In addition, in slide fastener of the present invention, rotate and contact in the region over half of the size of left and right slide fastener coupling element on the strip length direction of the main part of each slide fastener coupling element of the left and right flange part of pull head that direction tilts, the ends contact in the most shoulder mouth side of this flange part.

Namely, in slide fastener of the present invention, to contact with stop member and it is not towards when tilting at pull head, contact with the flange part of pull head in the region over half of the size of the shoulder mouth side chain tooth being configured at a side on the strip length direction of the main part of this shoulder mouth side chain tooth in the zipper teeth chain of left and right, be configured in the region of the half of the size of shoulder mouth side chain tooth on the strip length direction of main part being less than shoulder mouth side chain tooth of the opposing party's zipper teeth chain and contact with the flange part of pull head.

Because left and right zipper teeth chain is subject to horizontal pulling force in such a state, as mentioned above, make pull head to prescribed direction rotate and pull head towards inclination, thus, this shoulder mouth side chain tooth from chain tooth path of navigation towards the outside relative movement of takeing on mouth, can be set to the state do not contacted with the flange part of pull head relative to pull head by the shoulder mouth side chain tooth being less than the half of main part before rotation with the contact area of flange part.

Like this, when takeing on mouth side chain tooth and becoming the state do not contacted with the flange part of pull head, the slide fastener coupling element (hereinafter referred to as adjacent chain tooth) adjacent with the stop member side of takeing on mouthful side chain tooth is changed at the slide fastener coupling element of the ends contact of the most shoulder mouth side of the flange part of this shoulder mouth side chain tooth contact.In this case, this adjacent chain tooth contacts with the region over half of the size of flange part on the strip length direction of the main part of this adjacent chain tooth of pull head.

Therefore, in slide fastener of the present invention, following state can be set to: rotate and contact in the region over half of the size of left and right slide fastener coupling element in a manner described on the strip length direction of the main part of each slide fastener coupling element of the ends contact of the left and right flange part towards the pull head tilted, the most shoulder mouth side at this flange part, and fully can guarantee the contact area of left and right slide fastener coupling element and left and right flange part.

Thus, even if because left and right zipper teeth chain continues to be subject to horizontal pulling force, these slide fastener coupling elements also can stably maintain the state contacted with flange part, and stand horizontal pulling force, these slide fastener coupling elements can be made to exceed the shoulder mouth side edge of flange part and to deviate from the chain tooth path of navigation of pull head and the situation being stuck in the outer wall side of flange part is more difficult to produce.

In slide fastener of the present invention, the pull head opposite end mask of stop member has the inclined plane tilted relative to the bandwidth direction of zipper strip.Thereby, it is possible to stably form the rotation promotion division of stop member, when left and right zipper teeth chain is subject to horizontal pulling force, can easily make pull head towards inclination.

In addition, in slide fastener of the present invention, stop member has: cross over left and right zipper strip and fixing stop member body and from the stop member body protuberance outstanding to chain denture side.In this case, the size (width dimensions) on the bandwidth direction of protuberance is set smaller than the size of the half of the width dimensions of the abutting end of stop member.

Because stop member has such protuberance, when left and right zipper teeth chain is subject to horizontal pulling force, can stably promote the rotation of pull head and more easily make pull head towards inclination.In addition, by making the pull head of rotation abut with the pull head opposed faces of stop member body, can prevent pull head towards over-tilting.Thereby, it is possible to prevent the operability making the pull head of this pull head when locking side's upward sliding of chain denture from declining, and make the smooth and easy slip of pull head.

And, in slide fastener of the present invention, rotate and towards the left and right flange part of the pull head tilted shoulder mouth side edge position between strip length direction on interval there is the size over half of the size on the strip length direction of the main part of slide fastener coupling element.Due to pull head in such a state towards inclination, the shoulder mouth side chain tooth that can make to be less than with the contact area of flange part the half of main part before rotation relative to pull head relative movement to the position do not contacted with flange part.Thereby, it is possible to effectively prevent this shoulder mouth side chain tooth to be stuck in the outer wall side of flange part.

And the slide fastener of the invention described above is preferably used as the so-called water proofing property slide fastener being formed with synthetic resin watertight composition at least one party's zone face of zipper strip.In water proofing property slide fastener; as mentioned above; because watertight composition has elasticity; because the position of slide fastener coupling element offsets a little relative to band sometimes; in the past; when left and right zipper teeth chain is subject to horizontal pulling force under the state that slide fastener is opened, often can takes on a mouthful side chain tooth and be stuck in the outer wall side of the flange part of pull head and produce unfavorable condition.

On the other hand, as mentioned above, even if left and right zipper teeth chain is subject to horizontal pulling force under the state that slide fastener of the present invention abuts with stop member at pull head, slide fastener coupling element is also difficult to the outer wall side of the flange part being stuck in pull head, can eliminate the unfavorable condition easily produced in water proofing property slide fastener in the past.Therefore, according to the present invention, the water proofing property slide fastener of the intensity for horizontal pulling force (tensile splitting strength) under the state that improve and open at slide fastener can be formed simply.

Accompanying drawing explanation

Fig. 1 is the top view of the slide fastener representing the embodiment of the present invention 1.

Fig. 2 is the upward view amplifying the first stop member (lower stop member) representing this slide fastener.

Fig. 3 is the top view that Watch with magnifier is shown in this slide fastener the state that pull head is contacted with the first stop member.

Fig. 4 is the partial sectional view representing pull head under the state of Fig. 3 with section.

Fig. 5 is the partial sectional view towards the state tilted representing pull head.

Fig. 6 is the top view of the slide fastener representing the embodiment of the present invention 2.

Fig. 7 is the stereogram amplifying the slide fastener coupling element representing this slide fastener.

Fig. 8 is the upward view of the first stop member (lower stop member) representing this slide fastener.

Fig. 9 is the partial sectional view that Watch with magnifier is shown in this slide fastener the state that pull head is contacted with the first stop member.

Figure 10 is the partial sectional view towards the state tilted representing pull head.

Figure 11 is the partial sectional view of the relation of the zipper teeth chain represented in slide fastener in the past, pull head and the first stop member.

Detailed description of the invention

Below, embodiment is enumerated and the preferred embodiment that present invention will be described in detail with reference to the accompanying.In addition, the present invention by any restriction of the embodiment of following explanation, if having the formation identical with essence of the present invention and reach same action effect, then can not carry out numerous variations.

Such as, although the slide fastener illustrated in following embodiment is formed as water proofing property slide fastener, the present invention can be applicable to the common slide fastener not possessing water proof structure too.In addition, in following each embodiment, as described later, by thermoplastic injection being formed on zipper strip and the multiple independent slide fastener coupling element of spread configuration and form zipper teeth chain, but in the present invention, also can be sewn on zipper strip and form zipper teeth chain by coiled type or jagged continuous print slide fastener coupling element will be formed as.

Embodiment 1

Fig. 1 is the top view of the slide fastener representing the present embodiment 1.Fig. 2 is the upward view amplifying the first stop member representing this slide fastener.Fig. 3 is the top view that Watch with magnifier is shown in this slide fastener the state that pull head is contacted with the first stop member.

In addition, as mentioned above, in slide fastener, fore-and-aft direction refers to the strip length direction of zipper strip, is the rectilinear direction identical with the glide direction that pull head slides.Especially, making making pull head slide the direction of left and right chain denture engagement as front, making the direction of the engagement releasing of chain denture as rear using making pull head slide.

In addition, left and right directions refers to the bandwidth direction of zipper strip, is to be parallel to the zone face of zipper strip and the direction orthogonal with strip length direction.Particularly in the present embodiment 1 and embodiment described later 2, using the left in the top view (that is, the situation that the mode becoming the above-below direction of accompanying drawing by the fore-and-aft direction of slide fastener represents) of the slide fastener shown in Fig. 1 and right as left and right.

And above-below direction refers to the band positive and negative direction orthogonal with the zone face of zipper strip, especially, draw the direction of the side climbed as top, using the direction of its opposition side as below using what be configured with pull head relative to zipper strip.

The slide fastener 1 of the present embodiment 1 is formed as possessing when the locking of this slide fastener 1, the water proofing property slide fastener of the water proof structure that the liquid such as water can not leak from band front lateral strip rear side (or from band back side lateral strip face side).

This water proofing property slide fastener 1 has: pair of right and left zipper teeth chain 10, forms at the opposed multiple synthetic resin slide fastener coupling element 12 of band side edge part injection moulding of water proofing property band 11; Pull head 20, can be installed on the chain denture 13 be made up of multiple slide fastener coupling element 12 slidably; The first stop member (lower stop member) 30 be connected with the rearward end of chain denture 13; And the second stop member (upper stop member) 40 to be connected with the leading section of chain denture 13.

The stacked watertight composition that is made up of polyurethanes, polyesters, polyamide-based or polyvinyl chloride-base thermoplastic elastomer on the band front being made into or weaving into banded zipper strip and the band back side and the left and right water proofing property band 11 that forms in the present embodiment 1.

Because the watertight composition of water proofing property band 11 is made up of above-mentioned thermoplastic elastomer (TPE), stably water proofing property can be guaranteed.In addition, due to improve water proofing property band 11 flexibility and can along band positive and negative direction or bandwidth direction warpage water proofing property band 11, the process transfiguration of water proofing property slide fastener 1 is easy.In addition, if whole of zipper strip is covered by thermoplastic elastomer (TPE), then can more easily carry out the installation of installing goods to slide fasteners such as wet suits by high-frequency welding etc.

The each water proofing property band 11 in left and right has: be provided with slide fastener along strip length direction and install the band main part of goods and be configured at the band side edge part (also referred to as chain tooth installation portion) of the inner side of being with main part.

The slide fastener coupling element 12 of the present embodiment 1 is formed by the thermoplastic injection such as polyformaldehyde, polyamide, polypropylene, polybutylene terephthalate, nylon and Merlon being shaped.In addition, multiple slide fastener coupling element 12, with the installing space of regulation, is installed on the band side edge part of left and right water proofing property band 11 and forms chain denture 13 along strip length direction.

Such as, as shown in Figure 3 and Figure 4, each slide fastener coupling element 12 has: engageable head 15, in the longitudinal direction in Long Circle; Neck 16, is formed continuously and has the shape of contraction from engageable head 15; Main part 17, is formed continuously from neck 16; Shoulder 18, extended in the longitudinal direction from neck 16 and main part 17; And leg 19, from the band inward side end of main part 17, prop up extended via fork part.And at the top (leading section) of engageable head 15, depression is provided with for embedding the engagement pairing shoulder 18 of slide fastener coupling element 12 of side and the embedding recess of the band side edge of water proofing property band 11.

And, as shown in Figure 4, the band side edge part that each slide fastener coupling element 12 has across water proofing property band 11 is configured in the first chain tooth half portion (front side chain tooth half portion) of band face side and is configured in the second chain tooth half portion (back side side chain tooth half portion) of band rear side.

First and second chain tooth half portion of each slide fastener coupling element 12 have with water proofing property band 11 for the mutual laterally zygomorphic shape of benchmark, and are individually fixed in the watertight composition of water proofing property band 11, and link integration via the not shown through hole being arranged in water proofing property band 11.

In this case, slide fastener coupling element 12 has following relation: the size on the strip length direction of the main part 17 of slide fastener coupling element 12 is greater than and size between the slide fastener coupling element 12 on the side in strip length direction.

Although the present invention is not limited to such size relationship, be preferably applicable to the zipper teeth chain being in following relation: the size on the strip length direction of the main part 17 of above-mentioned slide fastener coupling element 12 is greater than and size between the slide fastener coupling element 12 on the side in strip length direction.That is, when meeting such size relationship, as the slide fastener coupling element 12 of side's zipper teeth chain 10 side, such as, when drawing the imaginary line being parallel to bandwidth direction the end on the strip length direction of the main part 17 of the slide fastener coupling element 12 from left side, this imaginary line is by the region of the main part 17 of the slide fastener coupling element 12 on right side.Therefore, about the shoulder mouth side chain tooth of a side side of two of shoulder mouth side shoulder mouth side chain teeth being arranged in pull head 20, easily there is following relation: be less than the half of the size on the strip length direction of the main part 17 of slide fastener coupling element 12 with the contact area of flange part.

The pull head 20 of the present embodiment 1 possesses slider body 21 and not shown the drawing that can be held in rotationally on slider body 21 is climbed.In addition, slider body 21 has: upper and lower fin 22,23; Guide post 24 between the end (shoulder mouth side end) linking upper and lower fin 22,23; Be configured at left and right flange part 25a, 25b of the left and right sides edge of upper and lower fin 22,23; And erect and be arranged at drawing of the upper surface side of upper panel 22 and climb erection column 26.

In the front end of slider body 21, guide post 24 be clipped in the middle and be formed with the shoulder mouth of left and right, and being formed with deutostoma in the rear end of slider body 21.In addition, between upper and lower fin 22,23, be formed with the chain tooth path of navigation being communicated with the shoulder mouth of left and right and the roughly Y-shaped shape of deutostoma.And, left and right upper flange part 25a, 25b of being configured at upper panel 22 on slider body 21 and be configured at lower panel 23 between left and right lower flange 25a, 25b, be formed with the band that left and right water proofing property band 11 is inserted through and insert gap.

In addition, in the present embodiment 1, left and right flange part 25a, more than 25b on slider body 21, the width center line of lower panel 22,23 are benchmark, are symmetrically formed.That is, on left and right flange part 25a, 25b from shoulder mouth side end identical to the length of the end of deutostoma side.And, from the position parallel with fore-and-aft direction of the deutostoma side on left and right flange part 25a, 25b, to be set as along with the length dimension of mode warpage expanded on the width of left and right towards shoulder mouth side: can guarantee with the side be configured in the shoulder mouth side chain tooth 12a of left and right zipper teeth chain 10 (the present embodiment 1, as shown in Figure 4, the shoulder mouth side chain tooth 12a in left side) the measure-alike size of contact area when overlooking and on the strip length direction of the main part 17 of slide fastener coupling element 12.The contact area of shoulder mouth side chain tooth 12a is the position that the inwall of the width centerline side of flange part 25a, 25b contacts with the main part 17 of chain tooth 12a, is the face formed by the length on the fore-and-aft direction of the position of this contact and the length on above-below direction.

Here, as shown in Figure 4, shoulder mouth side chain tooth 12a refers to: make pull head 20 with along strip length direction towards when contacting with the front described later protuberance 33 of the first stop member 30, with the left and right slide fastener coupling element 12 of the ends contact of the most shoulder mouth side of left and right flange part 25a, 25b of pull head 20.In addition, the length dimension of the warpage of left and right flange part 25a, 25b refers to: left and right flange part 25a, 25b from deutostoma side edge to shoulder mouth side edge, along the distance the direction of the left and right lateral margin warpage of upper and lower fin 22,23.

In addition, the pull head 20 for slide fastener 1 of the present invention also can possess: stop corpus unguis, be installed on slider body 21; And shut-down mechanism, by having the position that can keep stopping to stopping the force application part of corpus unguis force relative to chain denture 13.

First stop member 30 of the present embodiment 1 is configured to be connected with the rearward end side of chain denture 13, and determines the back-end location of the sliding scale of pull head 20.This first stop member 30 is by being formed the thermoplastic elastomer (TPE) injection moulding of polyurethanes, polyesters, polyamide-based or polyvinyl chloride-base.

In addition, the first stop member 30 has: the first stop member body 31, is configured to be connected with chain denture 13; First extension 32, rearward extends from the first stop member body 31 via step; And front protuberance 33, from the front end of the first stop member body 31, forwards side (chain denture 13 side) gives prominence to.These the first stop member body 31, first extensions 32 and front protuberance 33 integral forming.

And, first stop member body 31, first extension 32 and front protuberance 33 have the first half portion (face side half portion) being fixed on band face side and the second half portion (rear side half portion) being fixed on band rear side, and these first and second half portion have with water proofing property band 11 for benchmark and mutual just antisymmetric shape.

First stop member body 31 is crossed over left and right water proofing property band 11 and fixes, and the size (gauge) on band positive and negative direction is set as a certain size larger than slide fastener coupling element 12.

In this case, the crest line (or front end face) not configuring the side, leading section in the region of front protuberance 33 of the first stop member body 31 and the crest line (or rear end face) of rearward end side (the first extension 32 side) are configured to almost parallel, and the front end face that do not configure the region of front protuberance 33 opposed with pull head 20 of the first stop member body 31 is formed as parallel with bandwidth direction.

In addition, the crest line (or left and right side) of the side, left and right sides edge of the first stop member body 31 configures obliquely relative to strip length direction, thus this crest line (or side) interval each other (width dimensions on the bandwidth direction of in other words, the first stop member body 31) successively decreases towards rear.Therefore, the first stop member body 31 has when overlooking and look up in roughly trapezoidal form.

And, bury the rearward end of chain denture 13 under the state that the first stop member body 31 engages at left and right slide fastener coupling element 12 underground.Thus, because the first stop member body 31 is formed continuously with chain denture 13, stably ensure that the watertightness between the left and right water proofing property band 11 between chain denture 13 and the first stop member 30.

First extension 32 of the first stop member 30, from the first stop member body 31 to the end edge of water proofing property band 11, has the size (width dimensions) on certain bandwidth direction and is formed along strip length direction.In this case, the width dimensions of the first extension 32 is set as that the width dimensions of the leading section than the first stop member body 31 is little.

The front protuberance 33 of the first stop member 30 has the gauge identical with the first stop member body 31, give prominence to toward the front from the leading section of the first roughly trapezoidal stop member body 31, and bury a part for the slide fastener coupling element 12 being configured at rearmost end of left side chain denture 13 underground.

This front protuberance 33 is configured on the region of left side zipper teeth chain 10, and the width dimensions of front protuberance 33 is set as that the half size of the width dimensions of the leading section than the first stop member body 31 is less.In addition, the left surface of front protuberance 33 is formed continuously from the left surface of the first stop member body 31.The right flank of front protuberance 33 is configured in the left side of the closed position of left and right water proofing property band 11, and extends on the direction orthogonal with the front end face of the first stop member body 31.

The front end face opposed with pull head 20 of front protuberance 33 is formed relative to the left surface of this front protuberance 33 and right flank continuously via the chamfered section of bending planar.In addition, the front end face of front protuberance 33 is formed as the inclined plane tilted relative to bandwidth direction, thus the left corner being configured at band main part side be configured in be with side edge part side right corners compared be positioned at front (chain denture 13 side).

In first stop member 30 of above-mentioned the present embodiment 1, the leading section of the first stop member body 31 and front protuberance 33 pull head 20 formed in the first stop member 30 abuts the abutting end (leading section) of side.The abutting end (leading section) of this first stop member 30 is provided with rotation promotion division, described rotation promotion division pull head 20 along strip length direction towards under the state that contacts with the first stop member 30, when left and right zipper teeth chain 10 is subject to horizontal pulling force, promote that pull head 20 rotates along prescribed direction.

Rotation promotion division in first stop member 30 of the present embodiment 1 is arranged on front side by the front end face of front protuberance 33 compared with the position not configuring the front end face in the region of front protuberance 33 of the first stop member body 31, and the front end face of front protuberance 33 is formed as inclined plane in a manner described and forms.

In other words, in the present embodiment 1, by being configured with front protuberance 33 in the first stop member 30, and the front end face of its front protuberance 33 tilts relative to bandwidth direction, make the relative position on the strip length direction of the front end face (that is, the front end face of front protuberance 33 and the front end face of the first stop member body 31) opposed with pull head 20 of the first stop member 30 different on bandwidth direction.

Below specifically describe, at the front end face of the first stop member 30, using the region on the front end face of the front protuberance 33 opposed with left corner of the deutostoma side end of slider body 21 as the first opposed region, when using the region on the front end face of the first stop member body 31 opposed with right corners of the deutostoma side end of slider body 21 as the second opposed region, make the position on the strip length direction in the first opposed region mutually different from the position on the strip length direction in the second opposed region.

And, because the leading section of the first stop member 30 has above-mentioned form, under the state that pull head 20 contacts with the front end inclined plane of the front protuberance 33 of the first stop member 30, when left and right zipper teeth chain 10 is subject to horizontal pulling force, this pull head 20 is subject to the effect of this horizontal pulling force via slide fastener coupling element 12, as described later, can promote the rotation of pull head 20, thus on the direction of zone face being parallel to water proofing property band 11, when overlooking (Fig. 3) towards rotating clockwise.

Second stop member 40 of the present embodiment 1 is configured to be connected with the side, leading section of chain denture 13, and determines the front position of the sliding scale of pull head 20, is formed by being shaped by the Material injection identical with the first stop member 30.This second stop member 40 has and to abut with pull head 20 and to make it the second stop member body 41 stopped and the second extension 42 forwards extended from the second stop member body 41.In addition, in the present invention, the second stop member 40 form without particular limitation of.

The second stop member body 41 in the present embodiment 1 and the second extension 42 have the first half portion (face side half portion) being configured at band face side and the second half portion (rear side half portion) being configured at band rear side, these first and second half portion are crossed over left and right water proofing property band 11 respectively and fix, and to have with water proofing property band 11 be the shape of the mutual positive and negative symmetry of benchmark.

Second stop member body 41 has: pull head abutting part 41a, is configured at the upper end of this second stop member body 41 and abuts with the upper and lower fin 22,23 of pull head 20; With pull head insertion section 41b, rearward extended and insert the chain tooth path of navigation of pull head 20 from pull head abutting part 41a, pull head insertion section 41b within it circumference has to the projecting projecting strip part 41c in band positive and negative direction.

In this case, pull head abutting part 41a have along the upper and lower fin 22,23 on pull head 20 shoulder mouth side edge, observe in front time bending form.Pull head insertion section 41b reduces gauge and is formed compared with pull head abutting part 41a, thus can insert the chain tooth path of navigation of pull head 20.

In addition, pull head insertion section 41b has the form of the roughly C font when overlooking, thus when pull head 20 abuts with pull head abutting part 41a, contacting with flange part 25a, 25b of pull head 20 at least partially of the outer circumferential side side on the 41b of pull head insertion section can be made, and make the mutual close contact in leading section of chain denture 13 side, left and right on the 41b of pull head insertion section.

There is the second stop member body 41 of above-mentioned formation by making when the pull head 20 of engagement side's upward sliding of chain denture 13 abuts with pull head abutting part 41a and makes it to stop, make projecting strip part 41c with the inner surface close contact of the upper and lower fin 22,23 of the mode and pull head 20 of surrounding the guide post 24 of pull head 20, make the leading section, left and right of pull head insertion section 41b intimate contact with one another simultaneously, between pull head 20, guarantee watertightness.

Second extension 42 of the second stop member 40, from the second stop member body 41 to the front-end edge of water proofing property band 11, has certain width dimensions along strip length direction and is formed.

In the water proofing property slide fastener 1 of the present embodiment 1 with above formation, by making pull head 20 slide until contact with the pull head abutting part 41a of the second stop member 40 along chain denture 13, left and right slide fastener coupling element 12 can be made to engage each other, and by this water proofing property slide fastener 1 locking.

In the water proofing property slide fastener 1 of such locking, due to the opposed band lateral margin of left and right water proofing property band 11 each other by the engagement of chain denture 13 close contact, can the liquid such as anti-sealing via between left and right water proofing property band 11 from band face side invaded zone rear side (or from band rear side invaded zone face side).

On the other hand, in the water proofing property slide fastener 1 of the present embodiment 1, by making pull head 20 slide until contact with the first stop member 30 along chain denture 13, the engagement of left and right chain denture 13 can be removed successively, and open water proofing property slide fastener 1.In addition, when making it to stop making pull head 20 contact with the first stop member 30, usually, as shown in Figure 3, pull head 20 is mostly towards the direction along strip length direction.

At this moment, the left corner of the deutostoma side end of slider body 21 contacts with the front end face of the inclination of the front protuberance 33 of the first stop member 30.In addition, part (particularly right corners) beyond left corner on the deutostoma side end of slider body 21 becomes the state be separated with the first stop member 30, between the deutostoma side end and the front end face of the first stop member body 31 of this slider body 21, be formed with the spatial portion of the rotation described later of allowing slider body 21.

Here, in the pull head 20 of the present embodiment 1, as mentioned above, the length dimension of the warpage on left and right flange part 25a, 25b is set as: can guarantee the size that left flange part 25a is identical with the size (length dimension) of contact area when overlooking and on the strip length direction of the main part 17 of slide fastener coupling element 12 of the shoulder mouth side chain tooth 12a in left side.

Therefore, when pull head 20 contacts towards strip length direction with the first stop member 30, as shown in Figure 4, mouth side chain tooth 12a is takeed on when overlooking in the left flange part 25a of pull head 20 and left side, contacts in the region of the length dimension formed objects of the main part 17 with slide fastener coupling element 12.On the other hand, mouth side chain tooth 12a is takeed on when overlooking in the right flange part 25b of pull head 20 and right side, be less than slide fastener coupling element 12 main part 17 length dimension half size region contact.Therefore, when to left and right flange part 25a, 25b with when comparing with the contact area of the right and left shoulders mouth side chain tooth 12a of the ends contact of the most shoulder mouth side of each flange part 25a, 25b, the contact area on the shoulder mouth side chain tooth 12a of right side is less.

The state becoming such position relationship is: when linking the end of the shoulder mouth side of left and right flange part 25a, 25b with the imaginary line being parallel to bandwidth direction, this imaginary line is the state vertically crossing with fore-and-aft direction, is the state parallel with the front end face not configuring the region of front protuberance 33 of above-mentioned first stop member 30.Here, the length takeed on the right side of this on fore-and-aft direction of the contact area of mouth side chain tooth 12a is below the half of length on the fore-and-aft direction of main part 17.

When left and right flange part 25a, 25b of pull head 20 contact in the above-described state with right and left shoulders mouth side chain tooth 12a, when left and right zipper teeth chain 10 is subject to the horizontal pulling force on the direction that is separated from each other along bandwidth direction, such as, if water proofing property slide fastener in the past, then can there is right side shoulder mouth side chain tooth 12a and deviate from laterally in chain tooth path of navigation as described above and be stuck in the such unfavorable condition of the outer wall side of flange part 25b.

On the other hand, in the water proofing property slide fastener 1 of the present embodiment 1, be used for the rotation promotion division of pull head 20 by the morphosis of the leading section of the first stop member 30.Therefore, when left and right zipper teeth chain 10 is subject to horizontal pulling force under the state of fig. 4, because pull head 20 is subject to this horizontal pulling force via slide fastener coupling element 12, can make pull head 20 on the direction of zone face being parallel to water proofing property band 11 by the rotation promotion division of the first stop member 30, towards the rotation promoting pull head 20 when overlooking around clockwise direction, thus the right corners of the deutostoma side end of slider body 21 is close to the front end face of the first stop member body 31.Be here an example, by applying the horizontal pulling force of 10kgf ~ 20kgf to left and right zipper teeth chain 10, facilitate the rotation of pull head 20.

Thus, pull head 20 can with the contact portion of the first stop member 30 and the left corner of the deutostoma side end of slider body 21 for fulcrum, around rotating swimmingly clockwise, as shown in Figure 5, the direction making the right side little towards the contact area to flange part 25a, the 25b with pull head 20 of this pull head 20 take on mouth side chain tooth 12a tilts.

At this moment, in the slide fastener 1 of the present embodiment 1, pull head 20 can be made to rotate, until the deutostoma side edge of slider body 21 is parallel with the front end inclined plane of the front protuberance 33 of the first stop member 30, further, until the right corners of the deutostoma side end of slider body 21 contacts with the front end face of the first stop member body 31.

In addition, in the present embodiment 1, the deutostoma side edge of slider body 21 parallel with the front end inclined plane of the front protuberance 33 of the first stop member 30 towards pull head 20, or with this towards compared with roll in oblique pull head 20 clockwise, the interval D on the fore-and-aft direction (strip length direction) between the position of the position of the shoulder mouth side edge of left flange part 25a and the shoulder mouth side edge of right flange part 25b has the size over half of the length dimension of the main part 17 of slide fastener coupling element 12.In addition, the described interval D that the shoulder mouth side of left and right flange part 25a, 25b is intermarginal has the size less than the size of the installing space on the strip length direction of the slide fastener coupling element 12 on zipper teeth chain 10.

As mentioned above, this is because the right side less at the contact area of the inwall with side flange portion 25b is takeed in mouth side chain tooth 12a, the length of the length dimension of this contact area is below the half of the length dimension of main part 17, because described interval D is over half, when pull head 20 tilts, as described later, shoulder mouth side chain tooth 12a and the discontiguous state of right flange part 25b (or, the state seldom contacted with right flange part 25b) can be set to.

Then, by pull head 20 in a manner described around rotating clockwise, such as in the state shown in fig. 4, can make to take on mouth side chain tooth 12a relative to this pull head 20 with the right side of the ends contact of the most shoulder mouth side of the right flange part 25b of slider body 21, as shown in Figure 5, from the chain tooth path of navigation of slider body 21 towards the outside relative movement of shoulder mouth, until become the state (or, the state seldom contacted with right flange part 25b) do not contacted with right flange part 25b.

The state that is configured to not contact with the right flange part 25b of slider body 21 by right side shoulder mouth side chain tooth 12a in such a way (or, the state seldom contacted with right flange part 25b), even if left and right zipper teeth chain 10 is subject to horizontal pulling force further, the situation that this shoulder mouth side chain tooth 12a can be made to be stuck in the outer wall side of right flange part 25b is comparatively had difficult labour life.

In addition, now, right side shoulder mouth side chain tooth 12a is not become at the slide fastener coupling element 12 of the ends contact of the most shoulder mouth side of right flange part 25b, but become adjacent with the rear side of this shoulder mouth side chain tooth 12a and be positioned at slide fastener coupling element (adjacent chain tooth) 12b of chain tooth path of navigation, this adjacent chain tooth 12b contacts when overlooking with the right flange part 25b of slider body 21 in the region of the length dimension formed objects of the main part 17 with slide fastener coupling element 12.

On the other hand, though pull head 20 towards tilting as described above, the left flange part 25a of pull head 20 and left side are takeed on mouth side chain tooth 12a and are also maintained when overlooking, in the state that the region of the length dimension formed objects of the main part 17 with slide fastener coupling element 12 contacts.Therefore, fully ensure that the contact area of left side shoulder mouth side chain tooth 12a and right side adjacent chain tooth 12b and left and right flange part 25a, 25b.

Therefore, in the present embodiment 1, as mentioned above, pull head 20 towards tilt state under, even if left and right zipper teeth chain 10 is subject to horizontal pulling force, the left and right slide fastener coupling element 12 of the ends contact of left and right flange part 25a, the 25b due to slider body 21 and the most shoulder mouth side at this flange part 25a, 25b (namely, the shoulder mouth side chain tooth 12a in left side and the adjacent chain tooth 12b on right side) contact in the region of the length dimension formed objects of the main part 17 with slide fastener coupling element 12, so stably maintain the contact condition of slide fastener coupling element 12 and flange part 25a, 25b.Thus, these shoulders mouth side chain tooth 12a and adjacent chain tooth 12b is difficult to exceed the shoulder mouth side edge of flange part 25a, 25b and the outside of deviating to pull head 20, in addition, is also difficult to the power in the direction being subject to the rotation that the spacing of engageable head 15 side is opened wide.

Therefore, in the water proofing property slide fastener 1 of the present embodiment 1, even if left and right zipper teeth chain 10 is subject to horizontal pulling force under the state that this water proofing property slide fastener 1 is opened, the slide fastener coupling element 12 of the zipper teeth chain 10 be configured at the slide fastener coupling element 12 of the zipper teeth chain 10 in left side, being configured at right side is all difficult to be stuck on the outer wall side of flange part 25a, 25b of slider body 21 in pole.

Therefore, in the present embodiment 1, owing to there is no to be slided situation about being hindered by the pull head 20 caused that blocks of slide fastener coupling element 12 relative to flange part 25a, 25b as situation in the past, the slide smoothly of pull head 20 stably can be guaranteed.In addition, make it due to also pull head 20 can not be pulled by irrational power to slide, pull head 20, slide fastener coupling element 12 and zipper strip also can be prevented to be subject to excessive power and damaged.

Embodiment 2

Fig. 6 is the top view of the slide fastener representing the present embodiment 2.Fig. 7 is the stereogram amplifying the slide fastener coupling element representing this slide fastener.Fig. 8 is the upward view of the first stop member representing this slide fastener.In addition, because Fig. 8 is upward view, left and right directions become on the contrary towards.

The slide fastener 2 of the present embodiment 2 is formed as possessing when the locking of this slide fastener 2, the water proofing property slide fastener of the water proof structure that the liquid such as water can not leak from band front lateral strip rear side (or from band back side lateral strip face side).In addition, because slide fastener 2 water proofing property compared with the water proofing property slide fastener 1 in above-described embodiment 1 of the present embodiment 2 is low, so sometimes also referred to as sealing slide fastener.

The water proofing property slide fastener 2 of the present embodiment 2 has: pair of right and left zipper teeth chain 50, forms at the opposed multiple synthetic resin slide fastener coupling element 52 of band side edge part injection moulding of water proofing property band 51; Pull head 60, can be installed on the chain denture 53 be made up of multiple slide fastener coupling element 52 slidably; The first stop member (lower stop member) 70 be connected with the rearward end of chain denture 53; And second stop member (upper stop member) 75 of the adjacent configuration in front end with left and right each chain denture 53.

In addition, in the rearward end of left and right zipper teeth chain 50, be formed with blank portion as the region not configuring slide fastener coupling element 52.Band face side in this blank portion and band rear side, cross over left and right water proofing property band 51 and be fixed with the chip part 54 be made up of polyurethanes, polyesters, polyamide-based or polyvinyl chloride-base thermoplastic elastomer.

The left and right water proofing property band 51 of the present embodiment 2 has the band side edge part (chain tooth installation portion) be with main part and configured along a lateral margin (medial margin) of band main part, at the band medial margin of water proofing property band 51, be configured with along strip length direction and expand the heart yearn portion 51a of shape.

In addition, the stacked watertight composition that is made up of polyurethanes, polyesters, polyamide-based or polyvinyl chloride-base thermoplastic elastomer and form this water proofing property band 51 on the band front of the zipper strip being made into or weaving into.In this case, watertight composition is stacked in the band face side of the heart yearn portion 51a comprising zipper strip on the whole with certain thick layer.

In addition, the watertight composition of the water proofing property band 51 of the present embodiment 2 is only formed in band face side, but in the present invention, also watertight composition only can be formed in the band rear side of water proofing property band 51, or be formed on the band tow sides of water proofing property band 51.In addition, in the water proofing property slide fastener 2 in the present embodiment 2, also can be coated with dryingagent etc. on the whole at the outer surface of water proofing property band 51 and slide fastener coupling element 52.

The slide fastener coupling element 52 of the present embodiment 2 is by forming in water proofing property band 51 by the Material injection that thermoplastic resins such as making polyformaldehyde, polyamide, polypropylene, polybutylene terephthalate, nylon, Merlon contains silicones or fluororesin and being formed.In addition, multiple slide fastener coupling element 52, along strip length direction, is installed on the band side edge part of the heart yearn portion that the comprises 51a of left and right water proofing property band 51 with the installing space specified, forms chain denture 53.

About the form of the slide fastener coupling element 52 of the present embodiment 2, due to identical in fact with the slide fastener coupling element of the water proofing property be configured in the past (sealing) slide fastener, carry out its explanation simply here.In addition, in the present invention, slide fastener coupling element 52 form without particular limitation of.

The slide fastener coupling element 52 of the present embodiment 2 has the first chain tooth portion 55 and the second chain tooth portion 56, described first chain tooth portion 55 is configured at the band rear side of water proofing property band 51, described second chain tooth portion 56 is configured at the band face side of water proofing property band 51, and possesses the shape different from the first chain tooth portion 55.First chain tooth portion 55 has: the first main part 55a being fixed on water proofing property band 51; Formed continuously from the first main part 55a and there is the neck 55b of the shape of contraction; And the oblong engageable head 55c formed continuously from neck 55b.

Second chain tooth portion 56 has: the second roughly rectangular-shaped main part 56a being fixed on water proofing property the band 51 and chain tooth head 56b extended from the second main part 56a to bandwidth direction in the mode of giving prominence to from the band medial margin of water blocking tape.Chain tooth head 56b is shape that length dimension reduced gradually with two stages in the front end towards chain tooth head 56b, and has and be formed in first of the second main part 56a side and successively decrease portion and successively decrease from first and be formed in second of front via stage portion portion and successively decrease portion.

This second chain tooth portion 56 has following shape and size: when making left and right slide fastener coupling element 52 engage, as shown in Figure 8, between the second chain tooth portion 56 of that insert engagement matching side, mutually adjacent on strip length direction slide fastener coupling element 52, and the front end face in this second chain tooth portion 56 is contacted with the both sides second chain tooth portion 56 of engagement matching side with rear end face, and the front end of this chain tooth head 56b is contacted with the heart yearn portion 51a of the water proofing property band 51 of engagement matching side.

The pull head 60 of the present embodiment 2 possesses slider body 61 and can be held in drawing of slider body 61 rotationally climbs 61a.In addition, slider body 61 has: upper and lower fin 62,63; Guide post 64 between the end (shoulder mouth side end) linking upper and lower fin 62,63; Be configured at left and right flange part 65a, 65b of the left and right sides edge of upper and lower fin 62,63; And erect and be arranged at drawing of the upper surface side of upper panel 62 and climb erection column 66.In this case, the width center line of left and right flange part 65a, more than 65b, lower panel 62,63 is benchmark, is symmetrically formed.

In the front end of slider body 61, guide post 64 be clipped in the middle and be formed with the shoulder mouth of left and right, and being formed with deutostoma in the rear end of slider body 61.In addition, between upper and lower fin 62,63, be formed with the chain tooth path of navigation being communicated with the shoulder mouth of left and right and the roughly Y-shaped shape of deutostoma.And, upper flange part 65a, 65b of being configured at upper panel 62 on slider body 61 and be configured at lower panel 63 between lower flange 65a, 65b, be formed with the band that left and right water proofing property band 51 is inserted through and insert gap.

First stop member 70 of the present embodiment 2 is configured to be connected with the rearward end side of chain denture 53, and determines the back-end location of the sliding scale of pull head 60.In addition, the first stop member 70 strengthens gauge and is formed compared with slide fastener coupling element 52, thus abuts with pull head 60 and make it to stop.

And the first stop member 70 by being formed by the thermoplastic elastomer (TPE) injection moulding of polyurethanes, polyesters, polyamide-based or polyvinyl chloride-base, and buries the rearward end of chain denture 53 underground under the state engaged at left and right slide fastener coupling element 52.

This first stop member 70 has: be configured at water proofing property band 51 band rear side and when overlooking in the first roughly trapezoidal half portion 71 (rear side half portion) and be configured at band face side and when overlooking be roughly OBL second half portion 72 (face side half portion), the first half portion 71 possesses mutually different forms from the second half portion 72.In addition, the first half portion 71 and the second half portion 72 link via the not shown through hole being arranged in water proofing property band 51.

By making the first half portion 71 of the first stop member 70 different from the form of the second half portion 72 in such a way, as described later, first half portion 71 is arranged and rotates promotion division and the rotation of pull head 60 can be promoted, and the appearance that can make to become the second half portion 72 of the side of exposing to outside improves and improves the presentation quality of water proofing property band 51.

As shown in Figure 8, first half portion 71 being configured at band rear side of the present embodiment 2 is fixed on upper end and the water proofing property band 51 of chip part 54 in the mode of crossing over left and right water proofing property band 51.Left and right side in this first half portion 71 is configured to parallel with strip length direction, and rear end face is configured to parallel with bandwidth direction.

On the other hand, the front end face of the first half portion 71 is formed as the inclined plane tilted relative to bandwidth direction, make the left corner of zipper teeth chain 50 side on the left of being configured at (in fig. 8, the bight on right side) be more positioned at front than the right corners (in fig. 8, the bight in left side) being configured at zipper teeth chain 50 side, right side.

As shown in Figure 6, the second half portion 72 being configured at band face side is fixed on upper end and the water proofing property band 51 of chip part 54 in the mode of crossing over left and right water proofing property band 51.The left and right side of this second half portion 72 and rear end face are configured in the position with the left and right side of the first half portion 71 and rear end face positive and negative symmetry.

The front end face of the second half portion 72 is configured to parallel with the rear end face of the second half portion 72, namely parallel with bandwidth direction.In this case, on strip length direction, the front end face of the second half portion 72 is configured in the position identical with the position of the right corners of the front end face of the first half portion 71, or is configured in the position of rear side compared with the position of this right corners.

In addition, in the present embodiment 2, the leading section of the first half portion 71 of the first stop member 70 is provided with rotation promotion division, described rotation promotion division when left and right zipper teeth chain 50 is subject to horizontal pulling force under the state that pull head 60 contacts with the first stop member 70, promotes that pull head 60 rotates to prescribed direction by the mode of following detailed description.

Rotation promotion division in this present embodiment 2 is formed as tilting to form inclined plane relative to bandwidth direction by the front end face in the first half portion 71 of the first stop member 70 and forms, thus, make the first opposed region opposed from left corner of the deutostoma side end of the lower panel 63 of slider body 61, the lower panel 63 of slider body 61 deutostoma side end the second opposed region opposed with right corners strip length direction on position mutually different.

And, because the front end face of the first half portion 71 of the first stop member 70 tilts, pull head 60 along strip length direction towards on left and right zipper teeth chain 50 is subject to horizontal pulling force under the state that contacts with the front end face of this inclination time, as described later, this pull head 60 can on the direction parallel with the zone face of water proofing property band 51, with when overlooking towards right handed mode (with when looking up towards the mode counterclockwise rotated) promote the rotation of pull head 60.

Second stop member 75 and the slide fastener coupling element 52 being foremost configured at left and right chain denture 53 are adjacent to be installed on left and right respectively, and pull head 60 is not come off from the front of chain denture 53.This second stop member 75 is by being shaped the Material injection identical with the first stop member 70 and being formed.In addition, in the present invention, the formation of the second stop member 75 without particular limitation of, can change arbitrarily.

In the water proofing property slide fastener 2 of the present embodiment 2 with above formation, slide until contact with the second stop member 75 by making pull head 60 along chain denture 53, left and right slide fastener coupling element 52 can be made to engage each other and by this water proofing property slide fastener 2 locking, thereby, it is possible to the liquid such as anti-sealing via between left and right zipper teeth chain 50 from band face side invaded zone rear side (or from band rear side invaded zone face side).

On the other hand, in the water proofing property slide fastener 2 of the present embodiment 2, by making pull head 60 slide until contact with the first stop member 70 along chain denture 53, the engagement of left and right chain denture 53 can be removed successively, and open water proofing property slide fastener 2.In addition, when making it to stop making pull head 60 contact with the first stop member 70, usually, as shown in Figure 9, pull head 60 towards most towards the direction along strip length direction.

At this moment, the front end face of the left corner of deutostoma side end on the lower panel 63 of the slider body 61 of pull head 60 and the inclination in the first half portion 71 of the first stop member 70 contacts.In addition, simultaneously, part (particularly the right corners of the deutostoma side end of slider body 61) beyond the left corner of the deutostoma side end on lower panel 63 becomes the state be separated from the first stop member 70, is formed with the spatial portion of the rotation of allowing slider body 61 between the right corners and the first stop member 70 of pull head 60.

And, now, at left and right flange part 65a, the 65b to slider body 61 with when comparing with the contact area of the right and left shoulders mouth side chain tooth 52a of the ends contact of the most shoulder mouth side of each flange part 65a, 65b, contact area on right side shoulder mouth side chain tooth 52a (as in Fig. 9 of upward view, being positioned at the shoulder mouth side chain tooth 52a in left side) is less.

In such a state, when left and right zipper teeth chain 50 is subject to the horizontal pulling force on the direction that is separated from each other along bandwidth direction, as mentioned above, owing to being configured with rotation promotion division in the first half portion 71 of first stop member 70 of the present embodiment 2, can promote that pull head 60 is on the direction parallel with the zone face of water proofing property band 51, rotating towards the clockwise direction (being towards counterclockwise in as the Fig. 9 looked up) when overlooking, making the right corners of the deutostoma side end of lower panel 63 close to the front end face of the first half portion 71 of the first stop member 70.

Thus, pull head 60 can with the contact portion of the first stop member 70 and the left corner of the deutostoma side end of lower panel 63 for fulcrum rotates swimmingly, as shown in Figure 10, the lopsidedness of the shoulder mouth side chain tooth 52a little towards the contact area to flange part 65a, the 65b with pull head 60 of this pull head 60 is made.

At this moment, in the slide fastener 2 of the present embodiment 2, can make pull head 60 rotate to lower panel 63 deutostoma side edge entirety contact with the front end face of the first half portion 71 of the first stop member 70 towards.In addition, in this case, interval D on strip length direction between the position of the position of the shoulder mouth side edge of left flange part 65a and the shoulder mouth side edge of right flange part 65b has: the length dimension of first and second main part 55a, 56a of slide fastener coupling element 52 over half, and the size less than the size of the installing space on the strip length direction of slide fastener coupling element 52.

Then, rotated in a manner described by pull head 60, such as in the situation of figure 9, the shoulder mouth side chain tooth 52a on the right side contacted with right flange part 65b can be made relative to this pull head 60, as shown in Figure 10, from the chain tooth path of navigation of slider body 61 towards the outside relative movement of shoulder mouth, until become the state do not contacted with right flange part 65b.Thus, even if left and right zipper teeth chain 50 continues to be subject to horizontal pulling force, the shoulder mouth side chain tooth 52a on the right side of this also can be made to be difficult to be stuck in the outer wall side of flange part 65b.

In addition, now, takeing on the right flange part 65b of the adjacent adjacent chain tooth 52b of the rear side of mouth side chain tooth 52a and slider body 61 when overlooking with right side, contacting in the region of the length dimension formed objects of first and second main part 55a, 56a with slide fastener coupling element 52.In addition, though pull head 60 towards tilting in a manner described, the left flange part 65a of pull head 60 also contacts in the region over half of the length dimension of the first main part 55a of slide fastener coupling element 52 when overlooking with the shoulder mouth side chain tooth 52a in left side.Therefore, fully ensure that the contact area of left side shoulder mouth side chain tooth 52a and right side adjacent chain tooth 52b and left and right flange part 65a, 65b.

Therefore, in the present embodiment 2, in the same manner as the situation of above-described embodiment 1, even if left and right zipper teeth chain 50 continues to be subject to horizontal pulling force, slide fastener coupling element 52 also can be made to be difficult to be stuck in the outer wall side of flange part 65a, 65b of slider body 61.Therefore, it is possible to stably guarantee the slide smoothly of pull head 60, and make it due to also pull head 60 can not be pulled by irrational power to slide, pull head 60, slide fastener coupling element 52 and zipper strip also can be prevented to be subject to excessive power and damaged.

Description of reference numerals

1,2 slide fasteners

10 zipper teeth chains

11 water proofing property bands

12 slide fastener coupling elements

12a takes on mouth side chain tooth

12b adjacent chain tooth

13 chain dentures

15 engageable head

16 necks

17 main parts

18 shoulders

19 legs

20 pull heads

21 slider body

22 upper panels

23 lower panels

24 guide posts

Flange part on the left of 25a

25b side flange portion

26 draw and climb erection column

30 first stop members (lower stop member)

31 first stop member bodies

32 first extensions

33 front protuberances

40 second stop members (upper stop member)

41 second stop member bodies

41a pull head abutting part

41b pull head insertion section

41c projecting strip part

42 second extensions

50 zipper teeth chains

51 water proofing property bands

51a heart yearn portion

52 slide fastener coupling elements

52a takes on mouth side chain tooth

52b adjacent chain tooth

53 chain dentures

54 chip parts

55 first chain tooth portions

55a first main part

55b neck

55c engageable head

56 second chain tooth portions

56a second main part

56b chain tooth head

60 pull heads

61 slider body

61a draws and climbs

62 upper panels

63 lower panels

64 guide posts

Flange part on the left of 65a

65b side flange portion

66 draw and climb erection column

70 first stop members (lower stop member)

71 first half portion

72 second half portion

75 second stop members (upper stop member)

Interval on strip length direction between the position of the shoulder mouth side edge of about D flange part

Claims (7)

1. a slide fastener, described slide fastener (1,2) has:

Pair of right and left zipper teeth chain (10,50), the multiple slide fastener coupling element of spread configuration (12,52) on the opposed band side edge part of left and right zipper strip (11,51) and form chain denture (13,53); The pull head (20,60) that can slide along described chain denture (13,53); And stop member (30,70), continuous with an end of the described chain denture (13,53) of left and right, cross over the described zipper strip in left and right (11,51) and fix, abutting with the deutostoma side end of described pull head (20,60)

Described pull head (20,60) has: upper panel (22,62), lower panel (23,63); Guide post (24,64), between the shoulder mouth side end linking described upper panel (22,62), lower panel (23,63); And left and right flange part (25a, 25b, 65a, 65b), the left and right sides edge along described upper panel (22,62), lower panel (23,63) symmetrically configures, and it is characterized in that,

Described stop member (30, 70) the described pull head (20 of confession, 60) the abutting end of the side abutted has rotation promotion division, at described pull head (20, 60) the described zipper teeth chain (10 in left and right under the state contacted with a part for this abutting end, 50) during horizontal pulling force on the direction be separated from each other, described rotation promotion division promotes described pull head (20, 60) rotation, make described pull head (20, 60) direction towards with described pull head (20, 60) the described flange part (25a in left and right, 25b, 65a, the described slide fastener coupling element in the left and right (12a of the ends contact of most shoulder mouth side 65b), 52a), with described flange part (25a, 25b, 65a, described slide fastener coupling element (the 12a that contact area 65b) is little, 52a) lopsidedness.

2. slide fastener according to claim 1, wherein,

By making the relative position of the opposed end face of pull head on strip length direction towards described chain denture (13,53) side of described stop member (30,70), different and form described rotation promotion division on bandwidth direction.

3. slide fastener according to claim 1 and 2, wherein,

The described flange part in the left and right (25a, 25b, 65a, 65b) of postrotational described pull head (20,60), the described slide fastener coupling element in left and right (12a, 12b, 52a, 52b) with the ends contact of the most shoulder mouth side at this flange part (25a, 25b, 65a, 65b), contact in the region over half of the size on the strip length direction of the main part (17,55a, 56a) of each slide fastener coupling element (12,52).

4. slide fastener according to claim 2, wherein,

The described pull head opposite end mask of described stop member (30,70) has the inclined plane tilted relative to the bandwidth direction of described zipper strip (11,51).

5. slide fastener according to claim 2, wherein,

Described stop member (30) has: cross over the described zipper strip in left and right (11) and fixing stop member body (31) and from described stop member body (31) protuberance (33) outstanding to described chain denture (13) side.

6. the slide fastener according to any one of Claims 1 to 5, wherein,

Interval (D) on strip length direction between the shoulder mouth side edge position of the described flange part in the left and right (25a, 25b, 65a, 65b) of postrotational described pull head (20,60) has the size over half of the size on the strip length direction of the main part (17,55a, 56a) of described slide fastener coupling element (12,52).

7. the slide fastener according to any one of claim 1 ~ 6, wherein,

At least one party's zone face of described zipper strip (11,51) is formed with plastic watertight composition.