WO2019116514A1

WO2019116514A1 - Slide fastener

Info

Publication number: WO2019116514A1
Application number: PCT/JP2017/044949
Authority: WO
Inventors: 嘉一濱田; 成吉高澤; ジョンジュニアホリデー
Original assignee: Ykk株式会社
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2019-06-20
Also published as: TWI655916B; TW201927192A

Abstract

A slide fastener (1, 2, 3, 4) of the present invention is formed as a reversely openable slide fastener comprising an insert pin (16), a box pin (15), a first slider (30, 30a, 30b, 70), and a second slider (50, 50a, 50b, 80). The first slider (30, 30a, 30b, 70) and the second slider (50, 50a, 50b, 80) have a position holding structure which makes it possible to hold the first slider (30, 30a, 30b, 70) in a predetermined inclined position in a state in which the first slider (30, 30a, 30b, 70) is abutted against the second slider (50, 50a, 50b, 80). Thus, the insert pin (16) can be smoothly inserted into the first slider (30, 30a, 30b, 70) and the second slider (50, 50a, 50b, 80) in the abutted state, improving the operability of the insert pin (16).

Description

Slide fastener

The present invention relates to a reverseable slide fastener attached to an element row of fastener stringers in a direction in which a first slider and a second slider face each other's back ports, and in particular, a butterfly is attached to the first slider and the second slider. The present invention relates to a slide fastener capable of inserting a rod easily and smoothly.

Conventionally, in order to open and close the left and right front bodies in clothes, a slide fastener having a separable bottom end insert at the lower end of an element row, a slide fastener capable of reverse opening, etc. ing. For example, in the case of reverse-openable slide fasteners, two sliders are generally attached to the element row in a direction in which the back ports are opposed to each other, and these two sliders are used to extend the element row from both ends in the longitudinal direction It is formed to be openable.

In the reverse-openable slide fastener, at one end (rear end) of one of the left and right fastener stringers, a box rod is provided so as to be continuous with the element row, and the other fastener is provided. At one end (rear end) of the stringer, a butterfly rod is provided so as to be continuous with the element row. Here, of the two sliders, the slider disposed away from the box rod is defined as the first slider, disposed at a position closer to the box rod than the first slider, and abutted against the stopper portion of the box rod and stopped The second slider is defined as the second slider.

In such reverse-openable slide fasteners, when the element rows are engaged to close the slide fasteners while the left and right fastener stringers are separated, the second slider is applied to the box bar provided on one of the fastener stringers. Further, the first slider is brought into contact with the second slider to keep the two sliders in contact with each other, and then the butterfly bar provided on the other fastener stringer is inserted from the shoulder of the first slider. It is necessary to perform an operation of inserting the first slider and the second slider sufficiently to a predetermined position so as to be inserted. Thereafter, by sliding (pulling up) the first slider in the direction away from the second slider, the left and right fastener elements disposed in the slide fastener can be engaged in order.

However, when the reverse-openable slide fastener as described above is attached to clothes or the like and used, the user operates as described above without visually confirming the first slider, the second slider, and the butterfly bar. May be done. As a result, for example, inserting the butterfly bar in a state where the second slider is not properly in contact with the first slider stopped by the box bar (the first slider and the second slider are separated), or Even when the second slider is in contact with the first slider, the first slider may be pulled up in a state in which the butterfly rod is not sufficiently inserted to a predetermined position.

However, in the state as described above, the first slider can not slide in the meshing direction of the element row because the butterfly rod is not held at the predetermined position with respect to the first slider and the second slider. As a result, the user often feels bothered with the operation of the slide fastener. Further, some users may try to force the first slider to slide in a state in which the butterfly rod is not sufficiently inserted, which may lead to breakage of the slide fastener. Therefore, for the slide fastener that can be opened reversely, operability is improved, such as making it easy to insert the butterfly rod into the first slider and the second slider, or making it easy to start the sliding of the first slider. It was requested to do.

On the other hand, for example, Japanese Utility Model Publication No. 54-18325 (Patent Document 1) and International Publication No. 2010/070743 (Patent Document 2) disclose a technique for improving the operability of a slide fastener capable of reverse opening. It is done.

In the patent document 1, the second slider and the first slider are formed at the box rod end of the element row by forming the notch groove and the tongue piece which can be fitted to each other in the first slider and the second slider. A slide fastener is disclosed that is capable of positioning two sliders when moved up.

Specifically, as shown in FIGS. 30 and 31, the reverse-foldable slide fastener 100 described in Patent Document 1 includes the left and right fastener stringers 101 having element rows and the lower end of the left fastener stringer 101. The hinge rod 102 is arranged continuously from the element row in the part, the box rod 103 arranged continuously from the element row at the lower end of the right fastener stringer 101, and the left and right element rows slidably. It has the 1st slider 104 and the 2nd slider 105 which were worn. In this case, the second slider 105 is disposed closer to the butterfly rod 102 and the box rod 103 than the first slider 104.

In the slide fastener 100 of Patent Document 1, a notch groove 104a is provided on the inner surface of the upper blade and the lower blade of the first slider 104 from the rear end side edge toward the inside. Further, in the upper blade and lower blade of the second slider 105, a tongue piece portion 105a that can be fitted into the notch groove 104a of the first slider 104 is provided from the rear opening side edge of the upper blade and lower blade. It is extended toward the first slider 104.

According to the slide fastener 100 of Patent Document 1 configured as described above, after the second slider 105 and the first slider 104 are moved in order to the box rod 103 side end of the element row, the butterfly rod 102 is moved When inserted into the first slider 104 and the second slider 105, the tongue piece portion 105 a formed on the second slider 105 is fitted into the notch groove 104 a formed on the first slider 104. As a result, the engagement attitude of the first slider 104 and the second slider 105 is stable without swinging in the thickness direction (height direction) and the width direction of the slide fastener 100.

In the slide fastener 100 of Patent Document 1, as described above, the first slider 104 and the second slider 104 after the butterfly rod 102 is inserted by the simple structure of the notch groove 104a of the first slider 104 and the tongue portion 105a of the second slider 105. The relative positioning of the slider 105 can be performed, and the postures of the first slider 104 and the second slider 105 can be stabilized. Thereby, the sliding of the first slider 104 is smoothly started when the first slider 104 is pulled in the meshing direction of the element row (the direction away from the first slider 104) in order to mesh the left and right fastener elements. Thus, the operability of the reverse-openable slide fastener 100 can be improved.

On the other hand, in the slide fastener described in Patent Document 2, the first pull of the first slider disposed apart from the box bar and the second pull of the second slider disposed closer to the box bar An engagement structure is provided which can be stacked and engaged, and holds the first slider and the second slider in a state in which the rear openings face each other when the pulls are engaged.

In the case of the slide fastener of Patent Document 2 as described above, the first slider and the second slider are stably held in a state in which the rear openings face each other, and relative alignment between the first slider and the second slider is performed. Can be done easily. For this reason, when inserting a butterfly stick into a 1st slider and a 2nd slider, it becomes difficult to produce position gap of a 1st slider and a 2nd slider, and it can prevent both sliders separating mutually.

This makes it possible to facilitate the insertion of the butterfly bar to a predetermined position, so that the sliding of the first slider can be facilitated to start smoothly after the butterfly bar is inserted. Furthermore, even when the butterfly rod is pulled out from the first slider and the second slider, the first slider and the second slider can be stably held in contact with each other, so that the butterfly rod can be pulled out smoothly. .

Japanese Utility Model Publication No. 54-18325 International Publication No. 2010/070743

In the reverse-openable slide fastener 100 described in Patent Document 1, as described above, the tongue piece portion 105a provided on the second slider 105 is fitted into the notch groove 104a of the first slider 104. , And the relative alignment of the first slider 104 and the second slider 105 is performed.

However, in the case of the slide fastener 100 of Patent Document 1, the tongue piece portion of the second slider 105 only by the user moving the second slider 105 and the first slider 104 to the end of the box rod 103 side of the element row. 105 a can not always be fitted into the notch groove 104 a of the first slider 104. In addition, if the tongue portion 105a of the second slider 105 is not fitted into the notch groove 104a of the first slider 104, the position and posture of the second slider 105 become difficult to stabilize.

For this reason, when the first slider 104, the second slider 105, and the butterfly rod 102 are operated without visual confirmation, the relative position may be shifted due to the first slider 104 and the second slider 105 being separated or the like. Due to the positional deviation of the first slider 104 and the second slider 105, the butterfly rod 102 can not be stably inserted to a predetermined position.

Furthermore, in Patent Document 1, when the tongue piece portion 105a of the second slider 105 is fitted into the notch groove 104a of the first slider 104 before inserting the butterfly rod 102 into the second slider 105, the first slider 104 and The second slider 105 is a straight line in which a first center line located at the center in the width direction of the first slider 104 and a second center line located at the center in the width direction of the second slider 105 are linearly arranged. In the state of

As described above, when the first slider 104 and the second slider 105 are held straight with each other, the shoulder of the first slider 104, which is the insertion port of the butterfly rod 102, faces the length direction of the fastener stringer 101. Will be held by Therefore, when inserting the butterfly rod 102 from the shoulder of the first slider 104, the butterfly rod 102 is directed relatively straight along the length direction of the fastener stringer 101, and the second slider 105 from the front. If the operation is not performed to move the slider straight to the shoulder of the slider 105, the butterfly rod 102 may be easily caught on the box rod 103 or the like, and the butterfly rod 102 may not be sufficiently inserted into a predetermined position. For this reason, as described above, the insertion operation of the butterfly rod 102 performed in a state where the first slider 104 and the second slider 105 are held straight may feel bothersome.

On the other hand, in the reverse-openable slide fastener described in Patent Document 2, by overlapping the first pull of the first slider and the second pull of the second slider, the two pulls are simply engaged by the engagement structure. The first slider and the second slider can be stably held in a state in which the rear openings face each other.

For this reason, in patent document 2, even if it does not check a 1st slider and a 2nd slider by eyes each time, it can prevent that a 1st slider and a 2nd slider separate, and a 1st slider and a 2nd slider The insertion operation of the butterfly rod can be stably performed in the state in which the two are in contact with each other.

However, in the slide fastener of Patent Document 2, when the first pull of the first slider and the second pull of the second slider are engaged by the engagement structure, the first center line of the first slider and the second of the second slider The first and second sliders are held straight so that the two center lines are arranged in a straight line. For this reason, in the slide fastener of Patent Document 2, as in the case of Patent Document 1, the operation of the butterfly rod may be bothersome, and the butterfly rod can be inserted into the predetermined position more easily and smoothly. Is desired.

The present invention has been made in view of the above-described conventional problems, and a specific object thereof is to provide a slide fastener capable of reverse opening, in which the first slider and the second slider are engaged when meshing left and right element rows. It is possible to stably and properly position the slider, and to the operability of the butterfly rod which allows the butterfly rod to be inserted easily and smoothly to the predetermined position of the first slider and the second slider. To provide an excellent slide fastener.

In order to achieve the above object, a slide fastener provided by the present invention comprises: a pair of first fastener stringers and a second fastener stringer in which element rows are formed at opposing tape side edges of left and right fastener tapes; A box bar extending in the longitudinal direction from one end of the element row in the first fastener stringer; and a butterfly bar extending in the longitudinal direction from one end of the element row in the second fastener stringer And a first slider and a second slider slidably disposed along the element row, wherein the first slider and the second slider are oriented in such a manner that their rear end portions face each other, And a slide fastener in which the second slider is disposed closer to the box bar than the first slider. The first slider and the second slider are configured to move the first slider against the second slider in a state where the rear end of the first slider abuts on the second slider. An attitude holding structure capable of holding an inclination attitude in which a first center line located at the width direction center of the first slider is inclined at a predetermined angle with respect to a second center line located at the width direction center of the second slider Is the most important feature.

In the slide fastener according to the present invention, one of the first slider and the second slider has an engaging portion, and the other of the first slider and the second slider engages the engaging portion. It is preferable that the first slider be held in the inclined posture with respect to the second slider by having a mating engageable portion, and the engagement portion engaging with the engageable portion. .

In the slide fastener according to the present invention, at least one of the rear end of the first slider and the rear end of the second slider is an inclined portion which is inclined with respect to the slider width direction in a plan view. The inclined portion is formed such that at least one of the left and right outer side edges at the rear end is disposed closer to the shoulder than the widthwise central portion of the rear end. Is preferred.

Further, in the posture holding structure according to the present invention, the butterfly rod is inserted from the shoulder of the first slider and is inserted into the first slider and the second slider to rotate the first slider. It is preferable that the holding of the inclined posture is formed so as to be releasable.

Furthermore, in the slide fastener according to the present invention, one of the first slider and the second slider has an extension portion extending from the one slider toward the other slider as the posture holding structure, Preferably, the posture holding structure holds the first slider in the inclined posture when the extension of the one slider contacts the other slider.

In particular, in the slide fastener according to the present invention, the first slider and the second slider have a slider body formed by connecting the shoulder end of the upper blade and the shoulder end of the lower blade by a connecting column. And one slider in the first slider and the second slider is formed by making the thickness of the upper vane or the lower vane greater than that of the other slider, and the upper vane or the lower At least one extending portion extending from the rear end of the vane toward the other slider, the other slider being protruded to the outer surface of the upper vane or the lower vane And the protrusion for engagement which can be engaged by bringing the extending portion into contact with each other, and the posture maintaining structure includes the extending portion disposed on the one slider and the other slider. It is for the said engaged that is distributed The first slider is held in a state in which the first slider is in contact with the second slider by being formed by the projecting portion and the side surface portion of the extending portion being in contact with and engaged with the engaged projection. It is preferable to hold the first slider in the inclined posture.

In this case, the extension portion disposed on the one slider includes a base end extending from the outer side edge of the rear end to the one slider, and a tip of the base end. And a hook portion that curves or bends from the portion toward the central portion in the width direction, and when the rear end of the first slider abuts against the second slider, the cover of the other slider is The extending portion and the engaged protrusion are formed in such a manner that the rear end portion of the first slider abuts on the second slider. A first contact portion in which the inner peripheral side surface of the base end portion contacts the projection for engagement, and a second contact portion in which the inner peripheral side surface of the hook portion contacts the projection for engagement It is preferable to have.

Furthermore, in this case, it is preferable that the engaged protrusion have an inclined surface that is inclined downward toward the rear end of the other slider.
Further, when the butterfly rod is inserted from the shoulder of the first slider and inserted into the first slider and the second slider, the first slider rotates from the inclined posture to the first center. The line is held in a posture arranged linearly with the second center line, and the extension of the one slider and the engaged projection of the other slider are in the slider width direction. Preferably, they are arranged at different positions.

Further, in the slide fastener according to the present invention, the second slider is formed by connecting the shoulder side end of the upper blade and the shoulder side end of the lower blade by a connecting column, and the second slider is covered by the upper surface of the upper blade. The slider body is formed by connecting the shoulder end of the upper blade and the end of the lower blade of the lower blade by a connecting column. The pull tab may be held by the slider body, and the pull tab of the first slider may have an insertion hole into which the projection for engagement of the second slider can be inserted.

The slide fastener according to the present invention comprises a pair of left and right first fastener stringers and a second fastener stringer, a box rod arranged to be continuous with an element row at one end of the first fastener stringer, and one end of the second fastener stringer. The first rod is disposed so as to be continuous with the row of elements from the row of elements, and the first slider is disposed non-disengageably in the row of elements of at least the second fastener stringer and the rear end portions thereof face each other. And a second slider and is formed as a reverse-openable slide fastener. In this case, the first slider and the second slider are respectively a slider disposed at a position relatively away from the box bar and a slider disposed at a position near the box bar.

In the slide fastener of the present invention, the first slider and the second slider are configured such that the first slider is in a state where the rear end side of the first slider abuts on (is connected to) the second slider. (2) It has a posture holding structure which can be temporarily fixed (held) to the inclined posture with respect to the slider.

Here, the inclined posture of the first slider means that the first center line located at the center in the width direction of the first slider is located at the center in the width direction of the second slider when viewed from above the slide fastener. (2) A posture inclined at a predetermined angle set in advance so that the insertion operation of the butterfly rod can be easily performed with respect to the center line. In this case, the predetermined inclination angle of the first center line inclined with respect to the second center line is set in accordance with the shapes of the first slider and the second slider.

According to the slide fastener of the present invention in which the first slider and the second slider have the posture holding structure as described above, when closing the slide fastener in a state where the left and right fastener stringers are separated from each other When the first slider is brought into contact with the second slider which is in contact with the first slider, the first slider is held by the above-described attitude holding structure, and the second slider is It can be held simply and stably in the above-mentioned inclined posture inclined at a constant angle, not in a straight posture like this.

In particular, in the posture maintaining structure of the present invention, the first slider is provided on the shoulder end side of the first slider on the side opposite to the fastener stringer on which the box bar is disposed (the fastener stringer on which the butterfly bar is disposed). It can be held in the inclined posture that inclines so that the shoulder of the first slider, into which the butterfly bar is inserted, can be diagonally turned to the opposite side of the box bar to facilitate insertion operation of the butterfly bar. .

Thereafter, the first slider and the second slider are appropriately held in a fixed positional relationship with each other in the above-described posture holding structure by inserting the butterfly rod from the shoulder of the first slider, and therefore the user can carry out the first slider The position of the first slider or the second slider may be shifted even if the operation is performed without visually confirming the second slider and the butterfly rod, the first slider and the second slider are separated, and the attitude of the first slider Can be prevented from being inclined from the above-mentioned inclined posture.

Therefore, in the slide fastener according to the present invention, the butterfly rod can be easily inserted from the shoulder of the first slider, and the butterfly rod can be smoothly and stably inserted to the predetermined position of the first slider and the second slider. Thereby, the sliding of the first slider can be smoothly started to engage the left and right element rows.

In the present invention, in particular, the first slider does not have a straight posture, for example, as described in Patent Document 1 or Patent Document 2 described above, but can easily perform the insertion operation of the butterfly rod with the above-described posture holding structure. It is held in a predetermined inclined posture as described above. For this reason, in the present invention, the insertion operation of the butterfly rod can be performed from a direction more oblique to the longitudinal direction of the fastener stringer as compared with the above-mentioned Patent Document 1 and Patent Document 2. Therefore, the operability of the butterfly bar in the reverse-openable slide fastener can be greatly improved.

In such a slide fastener according to the present invention, one of the first slider and the second slider has an engaging portion, and the other of the first slider and the second slider is capable of engaging the engaging portion. It has an engaged portion. As a result, the first slider can be brought into a predetermined inclined posture in which the butterfly rod can be easily inserted by engaging the engaging portion provided on one slider with the engaged portion provided on the other slider. More stable and appropriate holding can be performed, and the insertion operation of the butterfly rod can be further facilitated.

In the slide fastener according to the present invention, at least one of the rear end of the first slider and the rear end of the second slider has an inclined portion which is inclined with respect to the slider width direction in plan view. In addition, the inclined portion is formed such that at least one of the left and right outer side edges at the rear end is disposed closer to the shoulder than the widthwise central portion of the rear end in the length direction. ing. As a result, when the first slider and the second slider are held by the above-described posture holding structure, the first slider can be held more stably and in a predetermined inclined posture, so that the insertion of the butterfly rod is made easier. And it can be done smoothly.

Further, according to the posture holding structure of the present invention, the first slider can be rotated to release the holding of the inclined posture by inserting the butterfly rod from the shoulder of the first slider and inserting it through the first slider and the second slider. Is formed. Thereby, even if the first slider is held at the predetermined inclined posture as described above by the posture holding structure, the first slider is rotated when the butterfly rod is inserted into the first slider and the second slider. The second slider can be held straight with respect to the second slider so that the first center line of the first slider and the second center line of the second slider are linearly arranged. As a result, the sliding of the first slider can be started more smoothly in the meshing direction of the element row.

Furthermore, in the present invention, one of the first and second sliders (for example, the first slider) extends from the one slider to the other slider (for example, the second slider) as a posture holding structure. Has an extending portion. Further, this posture holding structure is formed so as to hold the first slider in the inclined posture by bringing the extension part of one slider into contact with and engaging the other slider.

Here, that the extending part extends toward the other slider means that the extending part corresponds to the position of the rear opening side edge of the upper and lower blades of one slider in the longitudinal direction of the slider. As a reference, it means extending (projecting) to the other slider beyond the position of the rear end side. For example, the extension portion of the present invention may be formed to extend from the rear end of the lower blade of one slider toward the other slider, or the side surface of the lower blade of one slider And extending from at least one of the side portions of the lower flange portion provided on the lower blade and the lower blade, and extending beyond the rear end edge of the lower blade toward the other slider good. By using the posture holding structure having such an extended portion, when the first slider is brought into contact with the second slider, the first slider can be more stably held (fixed) in a predetermined inclined posture.

In particular, in the slide fastener according to the present invention, the first slider and the second slider have a slider body formed by connecting the shoulder end of the upper blade and the shoulder end of the lower blade by a connecting post. In addition, one slider in the first slider and the second slider is formed such that the thickness of the upper blade or the lower blade is larger than that of the other slider, and the rear side of the upper blade or the lower blade It has at least one extension which extends from the end towards the other slider. Furthermore, the other slider in the first slider and the second slider is provided to protrude on the outer surface (upper surface) of the upper blade or the outer surface (lower surface) of the lower blade, and the extension portions are brought into contact and engaged It has a possible engagement projection. In this case, the posture holding structure is formed by the extension part arranged in one slider and the engagement projection part arranged in the other slider, and the side surface of the extension part in the posture holding structure. Formed so as to hold the contact state of the first slider and the second slider and to hold the second slider in the inclined posture by the portion (for example, the inner side surface portion) coming into contact with and engaging with the engaged projection ing. As a result, when the first slider is brought into contact with the second slider, the first slider can be held more stably and appropriately at a predetermined inclined posture where the butterfly rod can be easily inserted, and the butterfly rod insertion operation Can be made easier.

In this case, the extension part arranged on one slider has a base end extending from the outer side edge of the rear end toward the one slider and a widthwise center from the tip end of the base end And a hook portion which curves or bends toward the portion. Further, the extending portion is formed to be able to go over the projection for engagement of the other slider when the rear end of the first slider abuts on the second slider. Furthermore, the extension and the engaged projection forming the attitude holding structure are engaged with the inner peripheral side surface of the base end in a state where the rear end of the first slider is in contact with the second slider. It has a first contact portion in contact with the mating projection, and a second contact portion in which the inner peripheral side surface of the hook portion contacts the projection for engagement.

Thus, when the first slider is brought into contact with the second slider, the extension of one slider can be easily engaged with the engaged projection of the other slider. Furthermore, since the extension part of the posture holding structure contacts the engaged protrusion at two different positions of the above-mentioned first contact part and second contact part, the first slider is stabilized in a predetermined inclined posture. It is possible to stably maintain the state in which the first slider and the second slider are in contact with each other and connected. For this reason, the insertion operation of the butterfly rod can be performed more smoothly and more stably.

Further, the engaged protrusion of the posture holding structure has an inclined surface which is inclined downward toward the rear end of the other slider. Thus, when the first slider is brought into contact with the second slider, the extension of one slider smoothly rides over the projection for engagement of the other slider, and the projection for engagement is stable. Can be engaged.

Further, in the slide fastener according to the present invention, when the butterfly rod is inserted from the shoulder of the first slider and inserted into the first slider and the second slider, the first slider pivots from the inclined posture and the first center line It is formed to be held in a posture linearly disposed with the second center line. In addition, when the first slider is rotated from the inclined posture, the extension of one slider and the projection for engagement of the other slider are provided at different positions in the slider width direction. It is done. Thus, when the first slider is slid after the butterfly rod is inserted into the first slider and the second slider, the extending portion of the posture holding structure and the projection for engagement may interfere with each other. Therefore, the sliding of the first slider can be smoothly started in the meshing direction of the element row.

Further, in the slide fastener according to the present invention, the second slider is formed by connecting the shoulder opening end of the upper wing plate and the shoulder opening end of the lower wing plate by a connecting column, and being engaged with the upper plane of the upper wing plate And a slider body having a slider body in which a projecting portion is provided, and the first slider is formed by connecting the shoulder side end of the upper blade and the shoulder side end of the lower blade by a connecting column. The slider may be formed to have a pull which is held by the slider body and has an insertion hole into which the projection for engagement of the second slider can be inserted.

That is, the posture holding structure in the slide fastener of the present invention is formed by the insertion hole portion provided in the puller of the first slider and the engaged protrusion provided in the slider body of the second slider. Also good. Even in such a posture holding structure, the first slider is brought into contact with the second slider, and the first slider is inserted into the insertion hole of the first slider into the engaged projection of the second slider. The second slider can be held easily and stably in the above-mentioned inclined posture inclined at a constant angle with respect to the second slider. Furthermore, the first slider and the second slider can be stably maintained in contact with each other. Thus, the insertion operation of the butterfly rod can be facilitated, and the butterfly rod can be smoothly and stably inserted to the predetermined position of the first slider and the second slider.

It is a top view which shows the slide fastener which concerns on Example 1 of this invention. It is a perspective view showing a slide fastener from the tape back side. It is a perspective view which shows the 1st slider (slider of the front side) of a slide fastener from an upper surface side. It is a perspective view showing the 1st slider from the undersurface side. It is a bottom view of the 1st slider. It is a side view of the 1st slider. It is a perspective view showing the 2nd slider (slider on the back side) of a slide fastener from the upper surface side. It is a perspective view showing the 2nd slider from the undersurface side. It is a bottom view of the 2nd slider. It is a side view of the 2nd slider. It is a top view which shows the state before a 1st slider contact | abuts to a 2nd slider. It is a bottom view which shows the state before a 1st slider contact | abuts to a 2nd slider. It is a bottom view which shows the state just before a 1st slider contact | abuts on a 2nd slider. It is a perspective view which shows the state just before a 1st slider contact | abuts on a 2nd slider from a lower surface side. It is a top view which shows the state which the 1st slider contact | abutted to the 2nd slider. It is a bottom view which shows the state which the 1st slider contact | abutted to the 2nd slider. It is a top view which shows the state which inserted the butterfly stick into the 1st slider and the 2nd slider. It is a bottom view which shows the state which inserted the butterfly stick into the 1st slider and the 2nd slider. It is a side view showing the 1st slider and the 2nd slider when a butterfly stick is inserted. It is a bottom view which shows the 1st slider and the 2nd slider of the slide fastener concerning Example 2 of this invention. It is a bottom view which shows the state which the 1st slider contact | abutted to the 2nd slider. It is a bottom view showing the 1st slider and the 2nd slider in the state where the butterfly stick was inserted. It is a bottom view which shows the 1st slider and the 2nd slider of the slide fastener concerning Example 3 of this invention. It is a bottom view which shows the state which the 1st slider contact | abutted to the 2nd slider. It is a perspective view which shows the 1st slider and 2nd slider of the slide fastener which concerns on Example 4 of this invention. It is a top view which shows the state before a 1st slider contact | abuts to a 2nd slider. It is a bottom view which shows the state before a 1st slider contact | abuts to a 2nd slider. It is a top view which shows the state which the 1st slider contact | abutted to the 2nd slider. It is a bottom view which shows the state which the 1st slider contact | abutted to the 2nd slider. It is a perspective view showing the conventional slide fastener. It is a top view which shows the 1st slider and the 2nd slider in the conventional slide fastener.

Hereinafter, embodiments of the present invention will be described in detail by way of examples with reference to the drawings. The present invention is not limited to the embodiments described below, and various modifications are possible as long as the configuration is substantially the same as the present invention and the same function and effect can be exhibited. It is.

For example, in the slide fastener described in each of the following embodiments, the element row of fastener stringers is formed by sewing a plurality of coiled continuous fastener elements onto a fastener tape. The form of the element row is not particularly limited. The element row of the fastener stringer in the present invention may be formed, for example, by injection molding a thermoplastic resin on a fastener tape and arranging a plurality of individual fastener elements, or a metal fastener element (element element ) May be attached to the fastener tape by plastic deformation processing by pressing.

FIG. 1 is a plan view showing the slide fastener according to the first embodiment, and FIG. 2 is a perspective view showing the slide fastener from the back side of the tape. 3 to 6 are a top side perspective view, a bottom side perspective view, a bottom view, and a side view schematically showing the first slider (the front slider) of the slide fastener, respectively. 7 to 10 are an upper surface side perspective view, a lower surface side perspective view, a bottom view, and a side view, respectively, schematically showing the second slider (the rear slider) of the slide fastener.

In the following description, the longitudinal direction refers to the length direction parallel to the sliding direction of the slider in the slide fastener, and in particular, the direction in which the first slider slides so as to mesh the left and right element rows (in other words, The direction in which the second slider slides so as to separate the left and right element rows is the front, and the direction in which the first slider slides so as to separate the left and the right element rows is the rear.

The left-right direction refers to the width direction of the slide fastener or the fastener tape, is orthogonal to the sliding direction of the first slider and the second slider, and is the direction parallel to the tape surface and the tape back surface of the fastener tape. In particular, the left direction and the right direction when the slide fastener is viewed from the upper side (that is, in a plan view of the slide fastener shown in FIG. 1) are left directions and right directions, respectively.

The vertical direction refers to a direction orthogonal to the front and rear direction and the left and right direction, and refers to a thickness direction (or height direction) orthogonal to the tape surface and the tape back surface of the fastener tape. In particular, in the following description, the direction in which the pull of the slider is disposed with respect to the fastener tape is the upper direction, and the opposite direction is the lower direction.

As shown in FIGS. 1 and 2, the slide fastener 1 according to the first embodiment has a pair of left and right fastener stringers in which element rows 12 are formed at opposing tape side edges of the left and right fastener tapes 11 (first And a

second fastener stringer

10a, 10b, a box rod 15 arranged to be continuous with the element row 12 at the rear end of the left fastener stringer 10a (first fastener stringer) 10a, and a right fastener stringer (second Fastener stringer 10b is provided at its rear end with a hinge rod 16 connected to the element row 12 and a pair of front and rear pairs slidably attached to the element row 12 with their back ports facing each other. The first slider 30 and the second slider 50 are provided.

In this case, the first slider 30 is a slider on the front side arranged apart from the box rod 15, and can slide the left and right element rows 12 from the rear side by sliding forward. The second slider 50 is disposed closer to the box rod 15 than the first slider 30, and is a rear slider that comes into contact with a stopper portion 15c described later of the box rod 15 and stops. The second slider 50 is a reverse-opening slider that separates the left and right element rows 12 by sliding forward after the first slider 30 slides.

The slide fastener 1 of the first embodiment is characterized mainly in the form (structure) of the first slider 30 and the second slider 50, and the left and

right fastener stringers

10a and 10b, the box rod 15, and the butterfly The rod 16 is formed substantially the same as a conventional reverse-openable general slide fastener.

For example, the left and

right fastener stringers

10a and 10b in the first embodiment respectively include the fastener tape 11 and an element row 12 formed along the length direction on the tape side edge (also referred to as an element attachment portion) of the fastener tape 11. And a stopper (not shown) provided at the front end of the element row 12.

In this case, each

fastener stringer

10a, 10b has a so-called element row 12 disposed on the tape back surface (bottom surface) of the fastener tape 11 so that the element row 12 is difficult to see from the surface side (upper side) of the slide fastener 1. It is formed in the form of the backing. In the present invention, the left and

right fastener stringers

10a and 10b may be formed in the normal type in which the element row 12 is disposed on the tape surface side of the fastener tape 11.

The element row 12 of each

fastener stringer

10a, 10b is formed by sewing a plurality of continuous fastener elements 13 in which monofilaments are formed into a coil shape by sewing thread at the tape side edge of the fastener tape 11 There is.

The box rod 15 provided on the left fastener stringer 10a is formed by injection molding a synthetic resin on the tape side edge of the fastener tape 11 so as to wrap the tape side edge from the tape surface to the tape back surface of the fastener tape 11 Is formed. The box bar 15 includes a box bar main body 15a disposed along the length direction, and a fitting projection 15b projecting in the width direction from the butterfly bar opposite side edge of the box bar main body 15a toward the butterfly bar 16 (See FIG. 12) and a stopper 15c (see FIG. 14) projecting from the rear end of the box bar main body 15a inward in the width direction of the tape.

In this case, when the box bar 15 is inserted into the first slider 30 and the second slider 50, the box bar main body 15a is used in both the element guide path of the first slider 30 and the element guide path of the second slider 50. It has a length dimension (lengthwise dimension) which can communicate. Further, the stopper portion 15c of the box rod 15 is provided so as to be able to contact the lower flange portion 36 described later of the second slider 50, and the second slider 50 is pulled out of the element row 12 on the left side by this stopper portion 15c. To prevent.

The butterfly rod 16 provided on the right fastener stringer 10b wraps the tape side edge from the tape surface to the tape back surface of the fastener tape 11 by injection molding a synthetic resin on the tape side edge of the fastener tape 11 Is formed. The butterfly rod 16 includes a butterfly rod main body portion 16a disposed along the length direction, an accommodation portion (not shown) recessed inwardly from the box rod opposite side edge portion of the butterfly rod main body portion 16a, and a butterfly An engaging portion 16b (see FIGS. 15 and 16) disposed at the front end edge of the rod body portion 16a and engaged with the mating mating fastener element 13 is provided.

In this case, the wing rod main body portion 16a has a length dimension that allows communication with both the element guide path of the first slider 30 and the element guide path of the second slider 50, similarly to the box bar body portion 15a. The housing portion of the butterfly rod 16 is disposed at a position corresponding to the fitting projection 15b of the box rod 15 in the length direction and thickness direction, and the butterfly rod 16 is a predetermined position of the first slider 30 and the second slider 50. When inserted up to the upper end, the insertion protrusion 15b of the box bar 15 is formed so as to be inserted and accommodated.

The first slider (front slider) 30 disposed in the slide fastener 1 according to the first embodiment has a first slider body 31 and a first pull 32 rotatably held by the first slider body 31. . In the present invention, the first pull 32 is not particularly limited, and the shape, size, etc. of the first pull 32 can be arbitrarily changed.

The first slider body 31 of the first embodiment includes the upper blade 33, the lower blade 34 disposed parallel to the upper blade 33, the shoulder end (front end) of the upper blade 33, and the lower blade. On the upper surface of the upper wing 33, a connecting post 35 for connecting the shoulder end (front end) of the plate 34, left and right lower flanges 36 arranged along the left and right sides of the lower wing 34, and A pair of left and right extensions extending rearward from the rear end (rear end) of the lower wing 34 to the second slider 50. And an outlet 38. In the first slider body 31, the mounting shaft portion 32 a of the first pull 32 is accommodated between the pull attachment portion 37 and the upper surface of the upper wing plate 33, whereby the first pull 32 is mounted on the first slider body 31. It is held.

A rear end is disposed at the rear end of the first slider body 31, and left and right shoulders are disposed at the front end of the first slider body 31 so as to sandwich the connecting post 35 therebetween. In the inside of the first slider body 31, element guide paths through which the left and right element rows 12 are inserted are formed by being surrounded by the upper vanes 33, the lower vanes 34, and the left and right lower flanges. The element guide path is formed in a substantially Y shape so as to communicate the left and right shoulders with the rear. The position of the element row 12 inserted in the element guide path is regulated in the width direction by the left and right lower flange portions 36 of the first slider body 31.

In the lower slider 34 of the first slider body 31 of the first embodiment, the thickness dimension (dimension in the thickness direction) at the rear end (rear end) is the thickness at the shoulder end (front end) In particular, in the case of the first embodiment, the thickness dimension of the lower blade 34 is formed so as to gradually increase from the shoulder end to the aft end. There is. Further, the rear end side of the lower wing plate 34 in the first slider body 31 is formed to have a larger thickness than the upper wing plate 33 of the first slider body 31, and the second slider body 31 is formed. It is formed to have a thickness dimension larger than that of a lower blade 34 described later 51.

The left and right extending portions 38 of the first slider body 31 of the first embodiment serve as an engaging portion that engages with an engaged projecting portion 58 of the second slider 50, which will be described later. It extends backward from the department. By extending the left and right extending portions 38 from the lower blade 34 instead of the upper blade 33, the left and right extending portions 38 can be arranged so as to be difficult to see from the surface side of the slide fastener 1. It can suppress that the appearance quality of the slide fastener 1 falls by installation of this.

The left and right extending portions (engagement portions) 38 in the first embodiment are imaginary first center lines 39 (see FIGS. 5 and 5) located at the center in the slider width direction of the first slider body 31 in the slider width direction. The shape is symmetrical to each other with reference to the reference 16). In addition, the left and right extension portions 38 have a predetermined thickness dimension, and the thickness dimension of the extension portions 38 is set smaller than the thickness dimension of the rear port side end portion of the lower blade 34. ing.

In this case, the lower end surface of the extending portion 38 is formed continuously from the lower end surface of the lower blade 34, and the lower end surface of the extending portion 38 and the lower end surface of the lower blade 34 are smooth without any step. It is formed on a single continuous surface. Further, a step portion 41 is provided between the upper end surface of the extension portion 38 and the upper end surface (element guide surface) of the lower vane 34, and the thickness dimension of the extension portion 38 is provided by the step portion 41. Is smaller than the thickness dimension of the lower blade 34. Furthermore, the stepped portion 41 between the lower wing plate 34 and the extension portion 38 is a portion where the lower wing plate 54 of the second slider 50 contacts when the first slider 30 is brought into contact with the second slider 50. is there.

The left and right extending portions 38 in the first embodiment have a proximal end 38a extending rearward from the left and right outer side edges at the rear opening side of the lower wing plate 34, and a distal end of the proximal end 38a. The hook portion 38b is formed to be curved from the (rear end portion) to the central portion in the width direction, and each of the extension portions 38 has a substantially L shape in a bottom view of the first slider 30. It has a form to present.

In this case, the base end 38 a of the extension 38 is formed so that the width (the dimension in the slider width direction) is gradually reduced as it extends rearward from the rear end of the lower blade 34. Further, in the bottom view of the first slider 30, the inner side surface portion (inner peripheral surface portion) of the base end portion 38a and the inner side surface portion (inner peripheral surface portion) of the hook portion 38b are formed in a curved surface which curves continuously. ing.

As described above, the left and right extending portions 38 having a substantially L shape are formed symmetrically and inward, for example, the extending portions 38 are formed by only one of the left and right. Compared with the case where the slide fastener 1 is used (for example, the clothes to which the slide fastener 1 is attached), the other members may be caught or pinched by the left and right extension portions 38 of the first slider 30. Can be difficult to occur.

Although the left and right extending portions 38 of the first embodiment are provided on the lower blade 34, for example, the thickness dimension at the rear opening end of the upper blade 33 of the first slider body 31 will be described later. The two slider bodies 51 can be made larger than the upper vanes 33 and provided at the rear opening end of the upper vanes 33 of the first slider body 31 in the left and right extending portions 38. In this case, the engaged projection 58 of the second slider body 51, which will be described later, is also protruded from the upper wing 53, not the lower wing 54 of the second slider body 51.

Furthermore, the first slider 30 of the first embodiment is provided with an automatic lock mechanism by the stop claw 42 (see FIG. 6). The stop claw 42 forming the automatic lock mechanism is disposed inside the pull attachment 37 so as to be covered by the pull attachment 37, and is protected by the pull attachment 37 and hidden so as to be difficult to see from the outside. It is done. The automatic lock mechanism formed on the first slider 30 of the first embodiment is formed in the same manner as the slider provided with the conventional automatic lock mechanism.

That is, in the automatic lock mechanism according to the first embodiment, a part (nail part) of the stop claw 42 is protruded into the element guide path by elastic biasing so that the part (nail part) of the stop claw 42 is Can be engaged with the fastener element 13 to hold the first slider 30 at its stop position so that the first slider 30 does not slide relative to the element row 12. Further, when the stop claw 42 is lifted by the first pull 32, the engagement between the stop claw 42 and the fastener element 13 is released, and the first slider 30 can freely slide. In the present invention, the first slider 30 may not have the above-described automatic lock mechanism.

The second slider (rear slider) 50 in the first embodiment has a second slider body 51 and a second pull 52 rotatably held by the second slider body 51. Similarly to the first pull 32, the second pull 52 is not particularly limited, and the shape, size, and the like of the second pull 52 can be arbitrarily changed.

The second slider body 51 of the first embodiment includes the upper blade 53, the lower blade 54 disposed parallel to the upper blade 53, the shoulder end (rear end) of the upper blade 53, and the lower member. Of the upper vanes 53, a connecting post 55 for connecting the shoulder opening side end (rear end) of the vane 54, left and right lower flange portions 56 disposed along left and right side edges of the lower vane 54, and It is provided on the upper surface in the form of a gate along the slider sliding direction to hold the second pull handle 52 and the lower surface of the lower end of the lower wing 54 (front end) to project downward. And a projection 58 for engagement.

A rear end is disposed at the front end of the second slider body 51, and left and right shoulders are disposed at the rear end of the second slider body 51 so as to sandwich the connecting post 55 therebetween. Further, inside the second slider body 51, element guide paths through which the left and right element rows 12 are inserted are formed in a substantially Y shape so as to communicate the left and right shoulders and the rear opening.

Unlike the lower blade 34 of the first slider body 31 described above, the lower blade 54 in the second slider body 51 of the first embodiment is formed to have a substantially constant thickness dimension. Further, the rear wing side end portion (front end portion) of the upper wing plate 53 and the lower wing plate 54 in the second slider body 51 is inclined with respect to the slider width direction in plan view or bottom view of the second slider body 51 The left and right inclined portions 61 are provided. The left and right outer side edges disposed on the outer side in the slider width direction at the rear opening side end portions of the upper wing plate 53 and the lower wing plate 54 by the left and right inclined portions 61 are the slider width in the slider length direction. It is arranged closer to the shoulder (rearward) than the position of the central part in the direction.

The first slider 30 is made to abut on the second slider 50 by providing the left and right inclined portions 61 at the rear opening side end portions of the upper wing plate 53 and the lower wing plate 54 of the second slider body 51, respectively. When the first slider 30 is held by the posture holding structure described later, the first slider 30 can be stably held in a predetermined inclined posture. In this case, the inclination angle of the left and right inclined parts 61 with respect to the slider width direction is the inclination angle of the inclined attitude holding the first slider 30 by the attitude holding structure (in other words, the first center line 39 with respect to the second center line 59 described later). Is set corresponding to the inclination angle θ) of

In the first embodiment, the left and right slopes 61 are formed at the rear end of the second slider body 51. However, in the case of the first embodiment, the shoulder of the first slider 30 is maintained by the posture holding structure. May be formed on the rear end side of the second slider body 51 so that only the inclined portion 61 on the right side is formed. Furthermore, although the inclined portion 61 of the first embodiment is provided only in the second slider body 51, in the present invention, the inclined portion inclined with respect to the slider width direction as described above is the same as that of the first slider body 31. It is also possible to provide only at the rear end side, or to provide at the rear end side of both the first slider body 31 and the second slider body 51.

The engaged projection 58 of the second slider body 51 of the first embodiment is disposed at the center in the width direction of the slider and has the same thickness as the left and right extension 38 of the first slider 30. . The engagement projection 58 serves as an engagement portion capable of engaging one of the left and right extension portions 38 of the first slider 30 when the first slider 30 abuts on the second slider 50. It is formed.

The engaged protrusion (engaged portion) 58 of the first embodiment faces the height dimension (dimension in the thickness direction) from the lower surface of the lower blade 54 to the rear end of the lower blade 54. The engagement projection 58 is formed with an inclined surface 58a which is inclined downward toward the rear end of the lower blade 54.

When the first slider 30 is brought into contact with the second slider 50 by providing the inclined surface 58 a as described above in the engaged projection 58, the extended portion 38 of the first slider 30 is engaged. It is possible to easily and smoothly get over the engaged projection 58 while sliding on the mating projection 58. Furthermore, the rear end surface of the engagement projection 58 of the first embodiment is disposed to be orthogonal to the lower surface of the lower blade 54 in a side view (FIG. 10) of the second slider 50. Thus, when the hook portion 38b of the extension portion 38 of the first slider 30 is hooked and engaged with the engaged projection 58, the engaged state of the hook portion 38b can be stably maintained. .

The engagement projection 58 of the second slider 50 is formed in such a shape that its width is gradually increased toward the rear edge of the lower blade 54 (in other words, in the forward direction). As a result, when the first slider 30 is slid after inserting the butterfly rod 16 into the first slider 30 and the second slider 50 as described later, the left and right extensions of the first slider 30 are extended. The engagement projection 58 of the second slider 50 is easily pulled out from between the portions 38, and the extension 38 of the first slider 30 is caught by the engagement projection 58, and the sliding of the first slider 30 is hindered. Can be prevented.

Furthermore, the second slider 50 according to the first embodiment is provided with an automatic lock mechanism by the stop claws 62 (see FIG. 10) as in the first slider 30. In the present invention, the second slider 50 may not have the automatic lock mechanism.

Furthermore, in the first slider 30 and the second slider 50 of the first embodiment, the left and right extending portions (engaging portions) 38 provided on the first slider 30 and the engaged members provided on the second slider 50 The projection (engaged portion) 58 forms a posture holding structure capable of holding the first slider 30 in an inclined posture inclined with respect to the second slider 50.

Specifically, as described later, for example, the first slider 30 is slid from the state shown in FIGS. 11 and 12 so that the rear end portion of the first slider 30 abuts on the second slider 50. In the first embodiment, one of the left and right extending portions 38 of the first slider 30 forming the attitude holding structure is brought into contact with the engaged projection 58 of the second slider 50 at two points. It can be combined.

Then, by engaging the first slider 30 with the second slider 50 via the posture holding structure as described above, as shown in FIGS. 15 and 16, the first slider 30 abuts against the second slider 50. The first slider 30 is positioned at the center in the width direction of the first slider 30, and the first center line 39 on the phantom is positioned at the center in the width direction of the second slider 50. It can be held in an inclined posture inclined at a predetermined inclination angle θ with respect to the second center line 59 of the Furthermore, in the attitude holding structure of the first embodiment, the inclined attitude of the first slider 30 is stably maintained until the butterfly rod 16 is inserted into the first slider 30 and the second slider 50, and the first slider 30 is Can be prevented from being excessively inclined with respect to the second slider 50, and the first slider 30 can be prevented from being straightened with respect to the second slider 50 when the inclination of the first slider 30 is returned.

Although the posture holding structure of the first embodiment is formed of the extending portion 38 provided on the first slider 30 and the engaged projection 58 provided on the second slider 50, for example, in the present invention, It is also possible to form the attitude holding structure by providing the first slider 30 with the projection for engagement and the second slider 50 with the extension.

Further, in the first slider 30 and the second slider 50 of the first embodiment, the left and

right fastener stringers

10a and 10b are formed in a use form having the element row 12 on the back surface side of the fastener tape 11 as described above. Therefore, the

lower flanges

36 and 56 are provided on the

lower vanes

34 and 54, respectively, and the flanges are not provided on the

upper vanes

33 and 53. However, in the present invention, the first slider and the second slider may be provided with the left and right flanges on the upper blade without providing the flanges on the lower blade depending on the form of the fastener stringer, the type of fastener element, etc. It is also possible to provide the left and right flanges on both the upper and lower blades.

Next, with respect to the slide fastener 1 of the first embodiment having the above-described configuration, the left and right element strings 12 are engaged with each other from the state where the left and

right fastener stringers

10a and 10b are separated from each other and the slide fastener 1 is opened. The operation when closing the fastener 1 will be described.

For example, when the left and

right fastener stringers

10a and 10b are separated, the first slider 30 and the second slider 50 are usually arranged on the element row 12 of the left fastener stringer 10a provided with the box bar 15 or Located on box bar 15 Further, when the first slider 30 and the second slider 50 of the first embodiment are positioned on the element row 12, the

sliders

30, 50 slide at their stop positions by the above-mentioned automatic lock mechanism by the stop claws 42. (See, for example, the first slider 30 in FIGS. 11 and 12). At this time, the postures of the

sliders

30 and 50 are naturally inclined diagonally with respect to the element row 12 due to the relationship between the element guide paths of the

sliders

30 and 50 and the element row 12 and the action of the

sliders

30 and 50 own weight. In many cases, it is also possible to swing the attitudes of the

sliders

30 and 50 left and right.

When the slide fastener 1 is closed by combining the left and

right fastener stringers

10a and 10b separated from each other, first, the second slider 50 is slid toward the box bar 15, and the second slider 50 is shown in FIGS. As shown in 12, the box rod side rear end position in contact with the stopper portion 15c of the box bar 15 is held. At this time, the second slider 50 abuts against the stopper portion 15 c of the box rod 15 so that the second slider 50 and the virtual second center line 59 of the second slider 50 are parallel to the length direction of the slide fastener 1. It can be held in the posture that

Subsequently, the first slider 30 is slid toward the box bar 15 so that the first slider 30 abuts on the second slider 50. Here, to bring the first slider 30 into contact with the second slider 50 means that the rear wing end portions of the upper wing 33 and the lower wing 34 of the first slider 30 are the upper wing 53 of the second slider 50. And the lower blade 54 respectively.

In the first embodiment, the posture holding structure is formed by the left and right extending portions (engaging portions) 38 of the first slider 30 and the engaged projections (engaged portions) 58 of the second slider 50. In this posture maintaining structure, before the first slider 30 abuts on the second slider 50, one of the left and right extending portions 38 of the first slider 30 (the right extending portion 38 in the first embodiment) As shown in FIG. 13 and FIG. 14, the engaged projection 58 of the second slider 50 contacts the engaged projection 58 of the second slider 50 from the front side. It slides over the projection 58 for engagement while being in sliding contact.

At this time, since the engaged projection 58 of the second slider 50 is formed with the inclined surface 58a which is inclined downward toward the rear opening end of the lower wing plate 34 as described above, the first slider The extension portion 38 can easily and smoothly ride over the engaged projection 58 along the inclined surface 58 a of the engaged projection 58.

Then, when the extending portion 38 of the first slider 30 climbs over the engaged projection 58 of the second slider 50, as shown in FIGS. 15 and 16, the upper wing plate 33 and the lower wing of the first slider 30 are obtained. At the same time as the plate 34 abuts on the upper blade plate 53 and the lower blade plate 54 of the second slider 50, the extension portion 38 of the first slider 30 is brought into contact with the rear end surface of the engaged projection 58 The portion 38 can be hooked and engaged with the engaged projection 58.

At this time, the extending portion 38 of the first slider 30 rides over the engaged projection 58 of the second slider 50 and engages with the engaged projection 58 as described above, for example, the first slider 30. Even if the user slidingly operates the first slider 30 and the second slider 50, the extension portion 38 of the first slider 30 is engaged with the engagement projection 58 of the second slider 50 even if the first slider 30 and the second slider 50 are not viewed directly. It becomes easy to notice what happened. Therefore, it can be expected that the user's operation of bringing the first slider 30 into contact with the second slider 50 can be more appropriately performed.

In the case of the first embodiment, the right side extending portion 38 of the first slider 30 is such that the inner side surface portion (inner peripheral surface portion) of the base end portion 38a of the extending portion 38 contacts the engaged projection 58 Engaging with the engaged projection 58 at the first contact portion and the second contact where the inner side surface portion (inner peripheral surface portion) of the hook portion 38b in the extension portion 38 contacts the engaged projection 58 Do. As described above, the right extension part 38 of the first slider 30 is different from the projection part 58 of the second slider 50 in the inner side surface part of the base end 38a and the inner side surface part of the hook part 38b. By contacting and engaging at two separate positions, the state in which the first slider 30 abuts on the second slider 50 can be stably maintained. Furthermore, with respect to the first slider 30, the first center line 39 of the first slider 30 with respect to the second slider 50, the shoulder of the first slider 30 with respect to the second center line 59 of the second slider 50, It can be stably held in an inclined posture inclined at a predetermined inclination angle θ so as to face the side (right side) opposite to the 15 side (left side).

In this case, particularly, on the rear end side of the upper blade 53 and the lower blade 54 of the second slider 50 of the first embodiment, the inclined portion 61 which is inclined with respect to the slider width direction is provided as described above. The inclined portion 61 of the second slider 50 abuts on the first slider 30 when the extended portion 38 of the first slider 30 is engaged with the engaged projection 58 of the second slider 50. It is configured to Thus, the above-described inclined posture of the first slider 30 can be held more stably.

Further, at this time, in the posture holding structure of the present embodiment 1, the tilt posture of the first slider 30 to be held is compared with, for example, the posture in which the first slider 30 naturally tilts as shown in FIGS. The angle at which the first center line 39 of the first slider 30 inclines with respect to the longitudinal direction of the slide fastener 1 is reduced. Specifically, in the attitude holding structure of the first embodiment, when the first slider 30 is held in the inclined attitude, the first center line 39 of the first slider 30 is the second center line 59 of the second slider 50. With respect to (or the length direction of the slide fastener 1), it can be inclined at a predetermined inclination angle θ in the range of 5 ° to 40 °, preferably 10 ° to 30 °.

Then, after the first slider 30 is brought into contact with the second slider 50 and held in the inclined posture as described above, as shown by phantom lines in FIGS. 15 and 16, the butterfly bars provided on the fastener stringer 10b on the right side 16 is inserted from the shoulder on the right side of the first slider 30, and the butterfly rod 16 is inserted so as to pass through the element guiding path of the first slider 30 and the element guiding path of the second slider 50.

At this time, since the first slider 30 is held in the inclined posture inclined to the right side (the butterfly rod 16 side) at the predetermined inclination angle θ by the above-described posture holding structure, It becomes easy to insert in the shoulder. Further, in the first embodiment, since the state in which the first slider 30 is in contact with the second slider 50 is maintained by the above-described posture holding structure, the butterfly rod 16 inserted from the shoulder of the first slider 30 Can be smoothly and stably inserted into the element guide path of the second slider 50 through the element guide path of the first slider 30.

Furthermore, in the first embodiment, when the butterfly bar 16 passes the element guide path of the first slider 30 and is deeply inserted into the element guide path of the second slider, the element guide of the first slider 30 is performed by the butterfly bar 16. The direction of the path and the direction of the element guide path of the second slider coincide with the longitudinal direction of the fastener tape. Thus, the insertion of the butterfly rod 16 causes the first slider 30 to rotate from the above-described inclined posture. As a result, the engagement between the extension 38 of the first slider 30 and the engagement projection 58 of the second slider 50 is released (that is, the holding of the inclined posture is released), and the first slider 30 is shown in FIG. As shown in FIG. 17 to FIG. 19, the first center line 39 of the first slider 30 and the second center line 59 of the second slider 50 are arranged straight with respect to the second slider 50 so as to be arranged linearly. It can be held in the state.

At this time, the upper blade 33 and the lower blade 34 of the first slider 30 make contact with the widthwise central portion disposed between the left and right inclined portions 61 of the upper blade 53 and the lower blade 54 of the second slider 50. doing. Further, the left and right extending portions 38 of the first slider 30 and the engagement projecting portions 58 of the second slider 50 are disposed at different positions in the slider width direction.

Then, by inserting the butterfly bar 16 completely into the first slider 30 and the second slider 50 to a predetermined position, the box bar 15 and the butterfly bar 16 are arranged to be substantially parallel, and the box bar 15 The insertion protrusion 15 b provided on the lower end of the hinge rod 16 is inserted into and accommodated in the not-shown accommodation portion of the butterfly rod 16. Thereby, the insertion operation of the butterfly rod 16 is completed.

After the insertion operation of the butterfly rod 16 is completed, for example, by sliding the first slider 30 shown in FIGS. 17 and 18 in the direction away from the second slider 50 (ie, forward), The left and right element rows 12 can be engaged by meshing in order from the left and right fastener elements 13 adjacent to the box bar 15 and the butterfly bar 16.

In particular, in the first embodiment, when the sliding of the first slider 30 is started, the first slider 30 is not in the inclined posture inclined with respect to the second slider 50, but the second slider 50 as described above. It is held in a straight state. For this reason, the sliding of the first slider 30 can be easily and smoothly started, and the sliding operation of the first slider 30 does not cause discomfort. At this time, the left and right extending portions 38 of the first slider 30 and the engagement projecting portions 58 of the second slider 50 are arranged at positions different from each other in the slider width direction. As a result, when sliding the first slider 30, the left and right extending portions 38 of the first slider 30 and the engaged projections 58 of the second slider 50 do not contact each other and interfere with each other. The installation of the left and right extension portions 38 and the engagement projection 58 does not prevent the sliding of the first slider 30.

In the slide fastener 1 according to the first embodiment, after the first slider 30 is slid to engage the left and right element rows 12, the second slider 50 in contact with the stopper portion 15c of the box rod 15 is moved forward. By sliding it in a direction, the left and right element rows 12 can be separated in the reverse direction sequentially from the left and right fastener elements 13 adjacent to the box bar 15 and the hinge bar 16. Here, the reverse direction means the direction opposite to the sliding direction in which the left and right fastener elements 13 are separated by the first slider 30.

Furthermore, in the slide fastener 1 of the first embodiment, when the left and right element rows 12 are separated from each other from the state in which the left and right element rows 12 are engaged, the left and

right fastener stringers

10a and 10b are separated from each other. First, the second slider 50 is slid to the box rod side rear end position contacting the stopper portion 15 c of the box rod 15, and the first slider 30 is slid until contacting the second slider 50. Thereafter, the butterfly rod 16 is pulled out of the second slider 50 and the first slider 30. Thereby, the left and

right fastener stringers

10a and 10b can be separated and separated.

In the slide fastener 1 according to the first embodiment as described above, the first slider 30 and the second slider 50 are formed by the extending portion 38 of the first slider 30 and the engagement projection 58 of the second slider 50. Posture holding structure is provided. When the first slider 30 is in contact with the second slider 50 in contact with the stopper portion 15 c of the butterfly rod 16 by using this posture holding structure, the first slider 30 contacts the second slider 50. While maintaining the contact state stably, the first slider 30 is stabilized in a predetermined inclined posture in which the shoulder of the first slider 30 inclines to the side (right side) opposite to the box bar 15 Can be held.

As a result, the relative positions of the first slider 30 and the second slider 50 are shifted, the first slider 30 and the second slider 50 are separated, and the attitude of the first slider 30 is inclined from the above-described inclined attitude. Thus, the butterfly rod 16 can be smoothly and stably inserted into the first slider 30 and the second slider 50 to a predetermined position. Therefore, in the slide fastener 1 according to the first embodiment, the user can smoothly insert the butterfly rod 16 without visually confirming the first slider 30, the second slider 50, and the butterfly rod 16. As a result, the operability of the butterfly bar 16 in the reverse-openable slide fastener 1 can be greatly improved.

In the slide fastener 1 of the first embodiment described above, the box rod 15 is disposed on the left fastener stringer 10a and the butterfly rod 16 is disposed on the right fastener stringer 10b in plan view of the slide fastener 1. A user wearing clothes with the slide fastener 1 is formed as a so-called left-inserting slide fastener 1 in many cases where the user operates the butterfly bar 16 with the left hand. In the first embodiment described above, the left and right extending portions 38 of the first slider 30 and the engagement projection 58 of the second slider 50, which form the attitude holding structure, have the above-described first center line in the slider width direction. It has a symmetrical shape in the slider width direction with reference to 39 and the second center line 59.

Therefore, for example, the first slider 30 and the second slider 50 can be arranged in the first embodiment by setting the positional relationship between the hinge rod 16 and the box rod 15 opposite to the slide fastener 1 of the first embodiment in the left-right direction. It is also possible to form a so-called reverse-slidable slide fastener 1 for the so-called right insertion, which has the same form. As described above, the first slider 30 and the second slider 50 according to the first embodiment are highly versatile sliders applicable to both the slide fastener 1 for left insertion and the slide fastener 1 for right insertion. As a result, the manufacturing cost of the first slider 30 and the second slider 50 can be reduced.

FIG. 20 is a bottom view showing the first slider and the second slider of the slide fastener according to the second embodiment. FIG. 21 is a bottom view showing a state in which the first slider abuts on the second slider, and FIG. 22 is a bottom view showing the first slider and the second slider in a state in which a butterfly rod is inserted.

The slide fastener 2 of the second embodiment is different from the slide fastener 1 of the first embodiment in that the extension portion (engaging portion) 45 of the first slider 30a and the second slider 50a form the attitude holding structure. The form of the engagement projection (engaged portion) 65 is different. However, the members and portions of the slide fastener 2 of the second embodiment other than the extension 45 of the first slider 30a and the engagement projection 65 of the second slider 50a are substantially the same as the slide fastener 1 of the first embodiment. In the same manner.

Therefore, in the second embodiment, members and portions having the same configuration as the slide fastener 1 of the first embodiment are represented using the same reference numerals as the first embodiment, whereby the members and portions thereof I will omit the detailed explanation about. Further, in the description of the third embodiment and the following embodiments, members and portions having substantially the same configurations as those of the embodiments described before will be denoted by the same reference numerals, and the description thereof will be omitted. .

The first slider (the slider on the front side) 30a of the second embodiment has a first slider body 31a and a first pull (not shown), and is provided with an automatic lock mechanism by the stop claw body 42.
In the first slider body 31a of the second embodiment, one extending portion 45 extending rearward from the rear end portion (rear end portion) of the lower wing plate 34 toward the second slider 50a is engaged. It is arranged as a department. The extension 45 is formed to have a smaller thickness than the rear end of the lower blade 34, and the upper end surface of the extension 45 and the upper end of the lower blade 34 (element guide surface As in the case of the first embodiment described above (see FIGS. 3 and 6), the step 41 is provided between When the first slider 30a is in contact with the second slider 50a, the lower wing 54 of the second slider 50a contacts the above-described step portion 41 of the first slider body 31a.

Further, the extending portion (engaging portion) 45 of the second embodiment is a base end portion 45 a that extends in a rod shape with a constant width dimension from the rear opening side end portion of the lower blade 34 toward the rear, And a hook portion 45b formed so as to be bent approximately 90 ° from the tip end (rear end) of the base end 45a toward the central portion in the width direction, and the extension 45 is a first slider In a bottom view of 30a, it has a form which exhibits a substantially L shape.

The second slider (rear slider) 50a of the second embodiment has a second slider body 51a and a second pull 52, and is provided with an automatic lock mechanism by the stop claws 62.
In the second slider body 51a of the second embodiment, an engaged projection 65, which protrudes downward from the lower surface of the rear end (front end) of the lower wing plate 54, serves as an engaged portion. It is arranged. The engaged projection 65 has a rectangular parallelepiped shape, and is disposed closer to the box bar 15 than the second center line 59 located at the center in the width direction of the second slider body 51a.

Further, the engagement projection part 65 of the second embodiment and the inner side surface part of the base end part 45a of the extension part 45 of the first slider 30a when the first slider 30a abuts on the second slider 50a. The inner side surface portion of the hook portion 45b is brought into contact with the side wall surface portion on the short side and the side wall surface portion on the long side of the engagement projection 65, thereby extending the first slider 30a to the engagement projection 65. The protrusion 45 is formed to be engageable.

In the first slider 30a and the second slider 50a of the second embodiment as described above, the extending portion (engagement portion) 45 provided on the first slider 30a and the engaged member provided on the second slider 50a The projecting portion (engaged portion) 65 forms an attitude holding structure capable of holding the first slider 30a in an inclined attitude inclined with respect to the second slider 50a. Such a posture holding structure of the second embodiment is formed in a simple form as compared with the posture holding structure of the first embodiment described above.

In the slide fastener 2 of the second embodiment having the first slider 30a and the second slider 50a as described above, the left and

right fastener stringers

10a and 10b are separated from each other and the slide fastener 2 is opened. When the row 12 is engaged and the slide fastener 2 is closed, first, the second slider 50a is slid to be held at the box rod side rear end position abutting on the stopper portion 15c of the box bar 15. Subsequently, the first slider 30a is slid toward the box bar 15, and the first slider 30a is brought into contact with the second slider 50a.

At this time, before the first slider 30a abuts on the second slider 50a, the extending portion 45 of the first slider 30a comes in contact with the engaged projection 65 of the second slider 50a from the front side, and further, Overcoming the engaged projection 65. As a result, as shown in FIG. 21, the upper wing 33 and the lower wing 34 of the first slider 30a are brought into contact with the upper wing 53 and the lower wing 54 of the second slider 50a, respectively, The extension portion 45 of the second slider 50a can be hooked and engaged with the engagement projection 65 of the second slider 50a.

By thus engaging the extension 45 of the first slider 30a with the engaged projection 65 of the second slider 50a, the state in which the first slider 30a is in contact with the second slider 50a is maintained. The first slider 30a can be stably held in a predetermined inclined posture inclining with respect to the second slider 50a.

In the second embodiment, as in the case of the above-described first embodiment, as described above, in the slider width direction at the rear opening end of the upper wing plate 53 and the lower wing plate 54 of the second slider 50a. An inclined portion 61 is provided to be inclined. Therefore, when the extension 45 of the first slider 30a is engaged with the engaged projection 65 of the second slider 50a, the inclined posture of the first slider 30a can be held more stably.

Thereafter, the butterfly bar 16 provided on the right fastener stringer 10b is inserted from the right shoulder of the first slider 30a, and the butterfly bar 16 is inserted so as to be inserted into the first slider 30a and the second slider 50a. By the insertion of the butterfly rod 16, the first slider 30a of the second embodiment is pivoted in the same manner as in the first embodiment described above, whereby, as shown in FIG. 22, the first slider 30a is rotated. The engagement between the extension 45 and the engagement projection 65 of the second slider 50a is released, and the first slider 30a can be held straight with respect to the second slider 50a. Further, by holding the first slider 30a in the straight state as described above, the extending portion 45 of the first slider 30a and the engaged projection 65 of the second slider 50a are in the slider width direction. It is arranged at mutually different positions.

Then, after the insertion operation of the butterfly rod 16 is completed, the left and right element rows 12 can be engaged by sliding the first slider 30a. In particular, in the second embodiment, when sliding of the first slider 30a is started, the first slider 30a is held in a straight state with respect to the second slider 50a, and the extending portion 45 and the engaged portion are engaged. Since the positions of the joint projection 65 in the slider width direction are different from each other, the sliding of the first slider 30 a can be easily and smoothly started.

In the slide fastener 2 according to the second embodiment as described above, the posture holding for holding the inclined posture of the first slider 30a by the extending portion 45 of the first slider 30a and the projection for receiving engagement 65 of the second slider 50a. The structure is formed. Thus, also in the second embodiment, the insertion operation of the butterfly rod 16 can be smoothly performed as in the slide fastener 1 of the first embodiment described above, and the operation of the butterfly rod 16 in the reverse-openable slide fastener 2 is possible. It is possible to improve the quality significantly.

FIG. 23 is a bottom view showing the first slider and the second slider of the slide fastener according to the third embodiment. FIG. 24 is a bottom view showing a state in which the first slider abuts on the second slider.
The first slider (the slider on the front side) 30b of the third embodiment has a first slider body 31b and a first pull (not shown), and is provided with an automatic lock mechanism by the stop claw body 42.

The first slider body 31b according to the third embodiment has a substantially L shape extending from the outer surface of the lower blade 34a and the outer surface of the lower flange 36 (not shown in FIGS. 23 and 24). The extending portion 47 is disposed as the engaging portion. The lower blade 34a in the first slider body 31b is formed to have a substantially constant thickness dimension. Furthermore, the extending portion 47 of the third embodiment is formed to have a thickness dimension larger than that of the lower blade 34a, and is connected to both the lower blade 34a and the lower flange portion 36 on the right side. . In the present invention, the substantially L-shaped extension 47 may be connected only to the lower blade 34a, or may be connected only to the lower flange 36 on the right side. In the present invention, it is also possible to provide the substantially L-shaped extending portion 47 not on the lower blade 34 a and the lower flange portion 36 but on the upper blade 33.

The extending portion 47 of the third embodiment includes a first extending portion (base end portion) 47a extending in the slider width direction from the lower blade 34a and the lower flange portion 36, and a tip end of the first extending portion 47a. And a second extending portion (bending piece portion) 47b which is bent from a portion and extends rearward toward the second slider 50b. Further, when the first slider 30b is brought into contact with the second slider 50b (see FIG. 24), the second extension 47b is below the second slider 50b. It is formed in contact with the side surfaces of the vane 54 and the lower flange portion 56.

The second slider (rear slider) 50b of the third embodiment has a second slider body 51b and a second pull 52, and is provided with an automatic locking mechanism by the stop claws 62. Further, the second slider body 51b of the third embodiment is formed in a form in which the engagement projection 65 is removed from the second slider body 51 in the first embodiment described above. Further, also in the third embodiment, as in the case of the first embodiment described above, the rear wing side end portions of the upper wing plate 53 and the lower wing plate 54 of the second slider 50b are inclined with respect to the slider width direction. The left and right inclined portions 61 are provided.

In the first slider 30b and the second slider 50b of the third embodiment as described above, the extending portion (engagement portion) 47 provided on the first slider 30b and the second slider 50b are disposed as an engaged portion. The side surface portion of the lower wing 54 and the side surface portion of the lower flange portion 56 allow the first slider 30b to be held in an inclined posture inclined with respect to the second slider 50b. It is formed. Such a posture holding structure of the third embodiment is formed in a simpler form as compared with the posture holding structures of the first and second embodiments described above.

In the slide fastener 3 of the third embodiment having the first slider 30 b and the second slider 50 b as described above, the first slider 30 b is slid toward the second slider 50 b from the state shown in FIG. By bringing the slider 30b into contact with the second slider 50b, as shown in FIG. 24, the extended portion (engagement portion) 47 of the first slider 30b is moved to the lower wing plate of the second slider 50b (Parts) 54 and each side part of the lower flange part (engaged part) 56 (engage).

As a result, when the first slider 30b is brought into contact with the second slider 50b, the first slider 30b can be held in a predetermined inclined posture inclining with respect to the second slider 50b. In this case, the inclination attitude of the first slider 30b held by the attitude holding structure of the third embodiment is higher than that of the second slider 50b (for example, the attitude shown in FIG. 23) in which the first slider 30b is naturally inclined. The inclination angle θ of the virtual first center line 39 of the first slider 30 b with respect to the virtual second center line 59 can be reduced. That is, in the posture holding structure of the third embodiment, it is possible to prevent the first slider 30b from being excessively inclined with respect to the second slider 50b.

Thereafter, as shown by phantom lines in FIG. 24, the butterfly bar 16 provided on the right fastener stringer 10b is inserted from the right shoulder of the first slider 30b, and the butterfly bar 16 is assembled with the first slider 30b and the second slider 50b. Insert so that it can be inserted. By the insertion of the butterfly rod 16, the first slider 30b of the third embodiment is rotated, and the first slider 30b of the third embodiment is rotated in the same manner as the first embodiment (FIG. 18) or the second embodiment (FIG. 22). The predetermined inclined posture of the slider 30b is released, and the first slider 30b can be held straight with respect to the second slider 50b.
Then, after the insertion operation of the butterfly rod 16 is completed, the left and right element rows 12 can be engaged by sliding the first slider 30b.

In the slide fastener 3 of the third embodiment as described above, the inclined posture of the first slider 30b is maintained by the extended portion 47 of the first slider 30b and the lower wing 54 and the lower flange portion 56 of the second slider 50b. Posture holding structure is formed. Thus, also in the third embodiment, the insertion operation of the butterfly rod 16 can be smoothly performed, and the operability of the butterfly rod 16 in the reverse-openable slide fastener 3 can be improved.

FIG. 25 is a perspective view showing a first slider and a second slider of the slide fastener according to the fourth embodiment. 26 and 27 are a plan view and a bottom view showing a state before the first slider abuts on the second slider. 28 and 29 are a plan view and a bottom view showing a state in which the first slider abuts on the second slider.

The slide fastener 4 of the fourth embodiment includes the left fastener stringer 10a and the right fastener stringer 10b, the box rod 15 disposed at the rear end of the left fastener stringer 10a, and the rear end of the right fastener stringer 10b. And a pair of front and

rear sliders

70 and 80 slidably attached to the element row 12 in a direction in which the rear ports face each other.

In the slide fastener 4 of the fourth embodiment, the left fastener stringer 10a, the right fastener stringer 10b, the box bar 15, and the butterfly rod 16 are the left fastener stringer 10a of the slide fastener 1 of the first embodiment described above. It is formed substantially the same as the fastener stringer 10b, the box rod 15, and the butterfly rod 16.

The first slider (front slider) 70 of the fourth embodiment has a semi-automatic locking mechanism by a spring member (leaf spring member) not shown. That is, the first slider 70 is provided with a first slider body 71 and a plate-like spring (not shown) provided with a claw portion which is attached to the first slider body 71 and can be projected into the element guide path of the first slider body 71. It has a member, and the 1st pull handle 72 by which the attachment axial part 72a is rotatably hold | maintained between the 1st slider body 71 and a spring member.

In the first slider 70 of the fourth embodiment, the first slider body 71 and the spring member are basically formed in the same manner as the slider body and the spring member of the conventional general slider provided with the semi-automatic locking mechanism. . Therefore, the first slider body 71 and the spring member of the fourth embodiment will be briefly described.

The first slider body 71 according to the fourth embodiment includes an upper wing plate 73, a lower wing plate 74, and a connecting post that connects the shoulder end of the upper wing plate 73 and the shoulder end of the lower wing plate 74; It has left and right lower flange portions 76 disposed at the left and right side edges of the lower blade 74. The upper wing 73 is provided with a mounting portion 73a on which a spring member is inserted and mounted, left and right protruding pieces 73b arranged on both left and right sides of the mounting portion 73a, and a protruding piece 73b. There are also provided pull holding columns 73c disposed on the left and right sides of the mounting portion 73a at a position on the rear opening side.

In this case, the left and right projecting pieces 73b press the spring member from the upper surface side by being pressed inward and plastically deformed in a state where the spring member is set on the mounting portion 73a of the upper wing plate 73. Can be fixed. Further, at the rear end side of the mounting portion 73a, a claw hole which allows a part of the spring member to be inserted and which communicates with the element guide path of the first slider body 71 is bored.

The spring member (not shown) according to the fourth embodiment includes a main body mounted on the mounting portion 73a of the first slider body 71, a claw extending downward from the rear end of the main body through the bending portion, and the main body And a mounting piece portion which extends downward from the front end portion through a bending portion, and is formed in a generally U-shaped bent configuration. In addition, in the present Example 4, the form of the 1st slider body 71 and a spring member is not limited, It is possible to change arbitrarily.

The first pull handle 72 according to the fourth embodiment includes a pull handle main body 72b which can be held by gripping with a finger, left and right arm portions 72c extending in parallel from one end of the pull handle main body 72b, and left and right arms And a mounting shaft portion 32a connecting between the tip portions of the portion 72c. The attachment shaft portion 32a of the first pull 72 is formed in a columnar shape elongated in the slider width direction, and a spring member attached to the first slider body 71 is lifted at the central portion of the attachment shaft portion 32a. The cam portion 72d of the cam is protruded in a predetermined direction.

An insertion hole 72e is formed in the pull main body 72b of the first pull 72 so as to allow insertion of a later-described engagement projection 85 provided on the second slider body 81 of the second slider 80, the surface of the pull main body 72b. It penetrates from the back to the back. In this case, the insertion hole portion 72e of the first pull 72 holds the inclined posture of the first slider 70 together with the engaged projection 85 which becomes the engaged portion of the second slider 80 as the engaging portion. It forms a structure. Therefore, the insertion hole (engagement portion) 72e of the first pull handle 72 corresponds to the position of the engagement projection (engagement portion) 85 of the second slider 80, and the first slider 70 is set to a predetermined position. It is disposed at a position where it can be held in the inclined posture.

The second slider (rear slider) 80 of the fourth embodiment is formed by the second slider body 81, and is disposed in the

second sliders

50, 50a, 50b of the first to third embodiments described above. Such a second pull 52 is not provided. Further, the second slider 80 of the fourth embodiment is formed as a so-called free slider which does not have a lock mechanism such as an automatic lock mechanism by a stop claw or a semi-automatic lock mechanism by a spring member.

The second slider body 81 (second slider 80) of the fourth embodiment includes the upper blade 83, the lower blade 84, the shoulder end (rear end) of the upper blade 83, and the lower blade 84. It is provided on the upper surface of the upper wing plate 83 so as to protrude from the connecting pillar connecting the shoulder opening side end portion (rear end portion), the left and right lower flange portions 86 arranged along the left and right side edges of the lower wing plate 84 And a projection 85 for engagement. Further, the rear wing side end portions (front end portions) of the upper wing plate 83 and the lower wing plate 84 in the second slider body 81 are inclined with respect to the slider width direction in plan view or bottom view of the second slider body 81 Left and right slopes are provided.

The engaged protrusion portion 85 of the fourth embodiment is formed in a hemispherical shape that can be inserted (inserted) into the insertion hole portion 72e of the first pull handle 72 described above. Further, the engaged projection 85 is disposed at a position closer to the box rod 15 with respect to a virtual second center line located at the center in the width direction of the second slider body 81 in the slider width direction.

In the first slider 70 and the second slider 80 of the fourth embodiment as described above, the insertion hole (engagement portion) 72 e provided in the first pull 72 of the first slider 70 and the second slider 80 are provided. Posture holding capable of holding and fixing the first slider 70 at a predetermined inclined posture inclined with respect to the second slider 80 by the engaged projection (engaged portion) 85 The structure is formed.

In the slide fastener 4 of the fourth embodiment, from the state where the left and

right fastener stringers

10a and 10b are separated from each other, when the slide fastener 4 is closed by meshing the left and right element rows 12, first, the second slider 80 By sliding, as shown in FIG. 25 to FIG. 27, it is held at the box rod side rear end position to be in contact with the stopper portion 15 c of the box bar 15. Subsequently, the first slider 70 is slid toward the box bar 15 so that the first slider 70 abuts on the second slider 80.

After bringing the first slider 70 into contact with the second slider 80, the first pull 72 of the first slider 70 is laid on the rear side, and as shown in FIG. 28, the first slider 70 is inclined by a predetermined amount. The first pull tab 72 of the first slider 70 and the second pull tab 72 of the first slider 70 are inserted by inserting the engaged projection 85 of the second slider 80 into the insertion hole 72 e of the first pull tab 72 while maintaining the posture. The slider body 81 is engaged. Thereby, the state where the first slider 70 abuts on the second slider 80 can be stably maintained, and the first slider 70 is stably held in a predetermined inclined posture inclined with respect to the second slider 80. be able to.

In this case, in particular, the engaged projection 85 of the second slider 80 is disposed closer to the box bar 15 in the slider width direction as described above. Thus, the first slider 70 is held in an inclined posture in which the shoulder end of the first slider 70 is directed to the side opposite to the left side fastener stringer 10 a on which the box bar 15 is disposed. Can make the insertion operation of the butterfly rod 16 easier.

Thereafter, the butterfly rod 16 provided on the right fastener stringer 10b is inserted from the right shoulder of the first slider 70, and the butterfly rod 16 is inserted so as to be inserted into the first slider 70 and the second slider 80. In the fourth embodiment, even if the butterfly rod 16 is inserted to a predetermined position of the first slider 70 and the second slider 80, the posture maintaining structure of the fourth embodiment maintains the inclined posture of the first slider 70. The first slider 70 does not rotate as in the first to third embodiments described above.

Then, after the insertion operation of the butterfly rod 16 is completed, the first pull 72 of the first slider 70 is lifted, and the engagement projection 85 of the second slider 80 is removed from the insertion hole 72 e of the first pull 72. As a result, the inclined posture of the first slider 70 is released, and the first slider 70 is held straight with respect to the second slider 80. Furthermore, the left and right element rows 12 can be engaged by sliding the first slider 70 forward.

In the slide fastener 4 of the fourth embodiment as described above, as described above, the first slider 70 is predetermined by the insertion hole 72 e of the first pull 72 and the projection 85 for engagement of the second slider 80. A posture holding structure for holding and fixing in the inclined posture is formed. Thus, in the fourth embodiment, since the butterfly rod 16 can be smoothly inserted into the first slider 70 and the second slider 80 fixed in the inclined posture, the slide fastener 4 capable of reverse opening can be obtained. The operability of the butterfly rod 16 can be improved.

In addition, the user wearing the clothes with slide fasteners performs the operation of the butterfly rod 16 with the left hand using the

slide fasteners

2, 3 and 4 that can be reverse-opened described in the above-described second to fourth embodiments. It is formed as a slide fastener for many left insertions. However, in the present invention, for example, the positional relationship between the hinge bar 16 and the box bar 15 is left and right opposite to the case of the second to fourth embodiments, and the

first sliders

30a, 30b, 70 and the

second sliders

50a, 50b, It is also possible to form a so-called reverse-openable slide fastener for so-called right insertion by forming 80 in a form of being in a mirror-symmetrical relationship in plan view or bottom view with respect to the form of Example 2 to Example 4. It is.

1, 2, 3, 4 Slide fastener 10a Left side fastener stringer (1st fastener stringer)
10b Right fastener stringer (2nd fastener stringer)
11 Fastener Tape 12 Element Row 13 Fastener Element 15 Box Bar 15a Box Bar Main Body 15b Insertion Projection 15c Stopper 16 Butterfly Bar 16a Butterfly Bar Main Body 16b Engagement 30, 30a First Slider (Slider on Front Side)
30b 1st slider (front slider)
31, 31a 1st slider body 31b 1st slider body 32 1st pull hand 32a attachment shaft portion 33

upper wing plate

34, 34a lower wing plate 35 connecting pillar 36 lower flange portion 37 pull hand attachment portion 38 extension portion (engagement portion)
38a proximal end 38b hook 39 first center line 41 step 42 stop claw 45 extension (engagement)
45a proximal end 45b hook 47 extension (engagement)
47a 1st extension (base end)
47b second extension (bent piece)
50, 50a second slider (rear slider)
50b 2nd slider (rear slider)
51, 51a Second slider body 51b Second slider body 52 Second pull hand 53 Upper blade 54 Lower blade 55 Connecting post 56 Lower flange portion 57 Pull attachment portion 58 Protrusive portion for engagement (engaged portion)
58a inclined surface 59 second center line 61 inclined portion 62 stop claw 65 projection for engagement (engaged portion)
70 1st slider (front slider)
71 first slider body 72 first pull hand 72a attachment shaft portion 72b pull main body portion

72c arm portion

72d cam portion 72e insertion hole portion (engagement portion)
73 upper wing plate 73a mounting portion 73b projecting piece portion 73c pull handle holding column 74 lower wing plate 76 lower flange portion 80 second slider (slider on rear side)
81 second slider body 83 upper blade 84 lower blade 85 projection for engagement (engaged portion)
86 Lower flange portion θ inclination angle

Claims

A pair of first fastener stringers (10a) and second fastener stringers (10b) having element rows (12) formed at opposing tape side edges of left and right fastener tapes (11), and the first fastener stringers (10a) A box rod (15) extending in the lengthwise direction from one end of the element row (12), and a length direction from one end of the element row (12) in the second fastener stringer (10b) And a first slider (30, 30a, 30b, 70) slidably disposed along the element row (12) and a second slider (50, 50a, 50) 50b, 80), and the first slider (30, 30a, 30b, 70) and the second slider (50, 50a, 50b, 80) are oriented in such a way that their rear end portions face each other. And the second slider (50, 50a, 50b, 80) is disposed closer to the box rod (15) than the first slider (30, 30a, 30b, 70) In the slide fastener (1, 2, 3, 4) that,
The first slider (30, 30a, 30b, 70) and the second slider (50, 50a, 50b, 80) have the rear end of the first slider (30, 30a, 30b, 70) With the second slider (50, 50a, 50b, 80) in contact with the second slider (50, 50a, 50b, 80), the first slider (30, 30a, 30b, 70) is placed against the second slider (50, 50a, 50b, 80) The first center line 39 located at the widthwise center of the first slider 30, 30a, 30b, 70 is located at the widthwise center of the second slider 50, 50a, 50b, 80). A slide fastener characterized in that it has an attitude holding structure capable of holding an inclined attitude inclined at a predetermined angle with respect to a second center line (59).
One of the first slider (30, 30a, 30b, 70) and the second slider (50, 50a, 50b, 80) has an engaging portion (38, 45, 47, 72e),
The other of the first slider (30, 30a, 30b, 70) and the second slider (50, 50a, 50b, 80) can be engaged with the engagement portion (38, 45, 47, 72e) Engaging portions (58, 65, 54, 56, 85), and
The first slider (30, 30a, 30b, 70) is engaged by the engagement portion (38, 45, 47, 72e) engaging with the engaged portion (58, 65, 54, 56, 85). Is held in the inclined posture with respect to the second slider (50, 50a, 50b, 80),
The slide fastener according to claim 1.
At least one of the rear opening end of the first slider (30, 30a, 30b, 70) and the rear opening end of the second slider (50, 50a, 50b, 80) is a plan view, Having an inclined portion (61) inclined with respect to the slider width direction,
The inclined portion (61) is formed such that at least one of the left and right outer side edges at the rear end is disposed closer to the shoulder than the widthwise center of the rear end. Become,
The slide fastener according to claim 1 or 2.
In the posture holding structure, the butterfly rod (16) is inserted from the shoulder of the first slider (30, 30a, 30b), and the first slider (30, 30a, 30b) and the second slider (50, 50a) , 50b), the first slider (30, 30a, 30b) is pivoted to be capable of releasing the holding of the inclined posture. Slide fastener.
One slider of the first slider (30, 30a, 30b) and the second slider (50, 50a, 50b) extends from the one slider toward the other as the posture holding structure. With an outlet (38, 45, 47),
The posture holding structure holds the first slider (30, 30a, 30b) in the inclined posture by the extension part (38, 45, 47) of the one slider contacting the other slider. Become
The slide fastener according to any one of claims 1 to 4.
In the first slider (30, 30a) and the second slider (50, 50a), the shoulder end of the upper blade (33, 53) and the shoulder end of the lower blade (34, 54) are connected Having slider bodies (31, 31a, 51, 51a) formed by being connected by pillars (35, 55);
One of the sliders of the first slider (30, 30a) and the second slider (50, 50a) has a thickness of the upper blade (33, 53) or the lower blade (34, 54) of the other. At least one formed larger than the slider and extending from the rear end of the upper blade (33, 53) or the lower blade (34, 54) toward the other slider Has three extensions (38, 45),
The other slider is provided on the outer surface of the upper blade (33, 53) or the lower blade (34, 54) and is engaged by bringing the extension (38, 45) into contact with each other. Possible engagement projections (58, 65),
The attitude holding structure is formed by the extending portion (38, 45) disposed on the one slider and the engaged projection (58, 65) disposed on the other slider, and The first slider (30, 30a) is engaged with the second slider (50, 50) by the side surfaces of the extension (38, 45) being brought into contact with and engaged with the engaged projection (58, 65). 50a) while holding the first slider (30, 30a) in the inclined posture,
The slide fastener according to any one of claims 1 to 5.
The extending portion (38, 45) disposed on the one slider has a base end (38a, 45a) extending from the outer side edge of the rear end toward the one slider. A hook portion (38b, 45b) that curves or bends from the distal end of the proximal end (38a, 45a) toward the central portion in the width direction, and the first slider (30, 30a) When the rear end is in contact with the second slider (50, 50a), it is possible to go over the projection (58, 65) of the other slider,
In the extension portion (38, 45) and the engagement projection (58, 65), the rear end portion of the first slider (30, 30a) is connected to the second slider (50, 50a) A first contact portion where the inner peripheral side surface of the proximal end portion (38a, 45a) and the projection for engagement (58, 65) come into contact with each other in a state of contact, And a second contact portion with which the engaged projection (58, 65) contacts.
The slide fastener according to claim 6.
The slide fastener according to claim 7, wherein the engaged projection (58) has an inclined surface (58a) inclined downward toward the rear end of the other slider.
The butterfly rod (16) is inserted from the shoulder of the first slider (30, 30a) and is inserted into the first slider (30, 30a) and the second slider (50, 50a). The one slider (30, 30a) is rotated from the inclined posture to be held in a posture in which the first center line (39) is linearly arranged with the second center line (59), and 9. The method according to claim 6, wherein the extension (38, 45) of the slider and the engagement projection (58, 65) of the other slider are disposed at mutually different positions in the slider width direction. Slide fastener according to any of the.
The second slider (80) is formed by connecting the shoulder opening end of the upper wing plate (83) and the shoulder opening end of the lower wing plate (84) by a connecting column, and the upper wing plate (83) A slider body (81) having an engagement projection (85) projecting from the upper surface of the
The first slider (70) has a slider body (71) formed by connecting the shoulder opening end of the upper wing plate (83) and the shoulder opening end of the lower wing plate (84) by a connecting column; And a pull (72) held by the slider body (71);
The pull (72) of the first slider (71) has an insertion hole (72e) into which the engaged projection (85) of the second slider (80) can be inserted.
The slide fastener according to any one of claims 1 to 3.