WO2014103001A1 - Slider for slide fastener, and slide fastener - Google Patents

Abstract

[Problem] To provide a slider, for a slide fastener, that makes it easier to insert poorly meshing left and right elements into the body of the slider via a rear opening. [Solution] In this slider (6, 61, 62) for a slide fastener, an upper concave part (71d) and a lower concave part (72d) that increase the vertical distance between upper and lower wing plates are provided at the rear edges of opposing inside surfaces of said upper and lower wing plates, in at least the centers of said rear edges with respect to a left-right direction.

Description

Slide fastener slider and slide fastener

The present invention is a slide fastener suitable for passing a pair of fastener stringers that would otherwise be closed when passing through the open portion when the pair of fastener stringers are normally open due to the poor meshing of the meshing heads of the respective elements. And a slide fastener including the slider and a pair of fastener stringers.

Generally, a slide fastener comprises a pair of opposing fastener stringers and a slider that opens and closes both fastener stringers. The pair of fastener stringers also includes a pair of opposing fastener tapes and a number of elements spaced along the opposing side edges of both fastener tapes.

Usually, when the user advances the slider to one side in the longitudinal direction of the fastener stringer, the elements of the pair of fastener stringers mesh and close in the front-rear direction, and retract the slider to the other side in the longitudinal direction. , The engagement is released and is open. Hereinafter, with regard to the directionality, the forward direction of the slider is referred to as the forward direction, the backward direction is referred to as the backward direction, the direction in which the pair of fastener stringers oppose is referred to as the lateral direction, and the thickness direction of the fastener tape is referred to as the vertical direction.

By the way, when a pair of fastener stringers is normally closed, it may be in the open state by the meshing failure of elements. Hereinafter, such a state is referred to as a "punk state".

A puncture condition is usually not a condition desired by the user. Then, in order to eliminate the punctured state, the user retracts the slider and separates it from the rear end (opening on the retracting side) of the slider body which is one of the components of the slider to the inside of the slider body. After inserting the elements of the pair of fastener stringers and retracting to the end stop of the element row, the slider must be moved again to bring the elements into mesh.

Essentially, the rear opening is an opening through which the left and right elements in a meshed state are moved in and out. Therefore, the shape of the rear opening when viewed from the rear is substantially rectangular, and the elements of the left and right fastener stringers are slightly larger in the left and right direction and in the vertical direction than in a state where they mesh with each other. It is a shape.

However, in the case of the punctured state, in the vicinity of the rear of the rear opening, the meshing head portions of the left and right elements whose meshing has been released become as if the weirs overlap vertically as viewed from the rear. Sometimes. For example, this condition may occur in the case of a continuous element in which a large number of elements are continuous. In this state, the dimension in the vertical direction of the meshing head portions of the left and right elements is considerably larger than the interval in the vertical direction of the rear opening. For this reason, it is difficult to retract the slider in the case of a puncture state.

Incidentally, prior art slide fasteners which are unrelated to the puncture state but related to the shape of the rear opening are disclosed in Patent Documents 1 and 2 below.

In any of the patent documents, the rear end of the slider barrel of the slide fastener is opposed to the upper and lower vanes facing each other with a gap between the upper and lower sides, and from both left and right ends of the upper or lower vane. It is formed in a substantially rectangular shape by a flange projecting toward the upper blade or lower blade. Moreover, in Patent Document 1, left and right recessed grooves for escaping the side edge of the fastener tape are formed on the inner surface of the lower blade from the rear opening toward the front. Moreover, in patent document 2, one recessed part equivalent to the concave groove of patent document 1 is similarly formed in the inner surface of an upper wing plate or a lower wing plate.

Japanese Patent Application Laid-Open No. 58-7203 Japanese Patent Application Laid-Open No. 9-37817

However, the above-described concave groove and the like in the prior art are formed in one of the upper blade and the lower blade, and the depth of the concave groove and the like is such that the side edge portion of the fastener tape escapes (= Equivalent to the thickness of the fastener tape). Then, in the slide fasteners of these prior arts, when trying to retract the slide fastener when the pair of fastener stringers are in the punctured state, the element collides with the rear opening, and the element smoothly from the rear opening. It does not enter.

By the way, if the user can easily retract the slider even in the punctured state, the user can actively create the punctured state and open the pair of fastener stringers. Then, the user does not necessarily have to operate the slider to open the closed pair of fastener stringers, and as a result, the convenience of the slide fastener is improved.

The present invention has been created in consideration of the above-mentioned circumstances, and makes it easier for the left and right elements of a pair of fastener stringers in a punctured state to enter the inside of the slider body from the rear, in other words, the punctured state. SUMMARY OF THE INVENTION It is an object of the present invention to provide a slider which is easy to retract with respect to a pair of fastener stringers, and a slide fastener including a pair of fastener stringers suitable for the slider.

The slider for a slide fastener according to the present invention includes an upper blade and a lower blade facing each other at an upper and lower distance, and a connecting post for connecting the upper blade and the lower blade vertically in the left-right direction central portion of each other. A slider body having at least one of the upper wing plate and the lower wing plate and a flange projecting in a direction to narrow the vertical distance from both end portions in the left and right direction; and provided on an upper surface side of the slider body It assumes that it is equipped with a pull.

In the slider for a slide fastener according to the present invention, a guide path is formed by the connection post and the flange extending in a direction perpendicular to the vertical direction and the horizontal direction between the upper blade and the lower blade. Shall be Then, the guide path is directed from the vicinity of the connecting post which is the branch point branched to the left and right of the connecting post and the branch point of the left and right outgoing paths toward the end portion of the slider body positioned in the orthogonal direction. It consists of a meshing path. Then, an upper concave portion and a lower concave portion are provided on the end surface of the upper side and the lower side opposite to each other and at least a central portion in the left-right direction of each other and the meshing path side. It is characterized by

Further, as described in the background art section, in the case of the punctured state, the left and right elements of which the engagement is released in the rear vicinity of the rear end of the slider body (in the vicinity of the end of the slider body). When viewed from the rear, the meshing head portions of are in such a state that the eyelids also overlap in the vertical direction. However, since the upper and lower spaces between the upper and lower recesses are wider at the end of the upper wing or the like, when the slider is retracted, the left and right elements are utilized utilizing the wide upper and lower spaces. Comes inside the slider body.

The vertical distance between the upper recess and the lower recess may be constant, for example, over the entire length in the orthogonal direction, but left and right inserted between the upper blade and the lower blade from the end In order to achieve meshing of elements faster, it is desirable to do the following.
That is, the vertical distance between the upper recess and the lower recess gradually narrows toward the connecting post over the entire length in the orthogonal direction.

Further, “the upper and lower spaces in the upper and lower recesses are gradually narrowed toward the connecting column over the entire length in the orthogonal direction” means, for example, the upper recesses and the like become a plurality of steps. Although the case in which the upper and lower spaces gradually become smaller toward the connection post is included, it is more preferable to do as follows.
That is, the upper concave portion and the lower concave portion have an inclined surface portion which gradually and gradually narrows the vertical interval toward the connecting post over the entire length in the orthogonal direction.

Furthermore, the opposing inner surfaces of the upper blade and the lower blade may be constituted of only the upper flat portion and the lower flat portion, for example, except for the upper recess and the lower recess. It is desirable to
That is, on the opposing inner surfaces of the upper blade and the lower blade, upper ridges extending from the connection post to the end, and from the connection post to the end A lower protrusion is provided, and the upper recess and the lower recess are provided closer to the end of the slider body than the upper protrusion and the lower protrusion.

Moreover, although the said upper recessed part and the said lower recessed part may be provided over the left-right direction whole area between the flanges on either side, for example, you may carry out as follows.
That is, the inner surface facing the upper wing plate and the lower wing plate is provided with an upper flat portion and a lower flat portion on the inner side in the left and right direction than the left and right flanges, and at the center in the left and right direction of the upper flat portion. The upper recess is disposed at the center in the left-right direction of the lower flat portion. The vertical distance between the opposing upper flat surface and the lower flat surface is smaller than the vertical distance between the upper recess and the lower recess. In addition, the vertical distance between the upper recess and the lower recess is gradually increased from both sides in the lateral direction toward the central portion.

Moreover, the following are mentioned as a slide fastener using the slider for slide fasteners mentioned above.
That is, the slide fastener of the present invention includes the above-described slider and the left and right fastener stringers to which the slider is movably attached in the orthogonal direction. The left and right fastener stringers are formed by a pair of left and right fastener tapes and a plurality of elements attached along the orthogonal direction at opposite side edges of the respective fastener tapes. And the left and right element rows are inserted through the sliders.

In addition, as a slide fastener suitable for the slide fastener slider described above, the following may be mentioned.
That is, in the left and right element rows, the left and right fastener tapes do not substantially have the elements in addition to the meshing row portion in which some of the plurality of elements alternately mesh normally in a predetermined configuration. A non-engaging portion substantially facing each other or a weak engagement portion in which the elements are engaged with each other more weakly than the elements of the part of the engagement row portion is provided.

Further, as an example of a specific configuration of the slider, there is, for example, the following.
That is, the slider is formed by inserting the left and right element rows in a state in which the meshing paths are provided on both sides of the connection column in the orthogonal direction.

Further, as another example of the specific configuration of the slide fastener, there is, for example, the following.
That is, the slide fastener has two of the sliders attached to the left and right fastener stringers. In addition, the connecting pillars of the two sliders described above are in a positional relationship in which they face in the orthogonal direction.

According to the slider for a slide fastener of the present invention, since the upper and lower recesses and the upper and lower recesses are widened by the upper and lower recesses, the slider is moved (retracted) to the meshing road side to cause a puncture state. The elements on the left and right are smoothly inserted into the slider body in comparison with the prior art. Therefore, according to the present invention, the punctured state can be easily eliminated.

In addition, if the slider is such that the vertical distance between the upper and lower recesses gradually narrows toward the connecting column over the entire length in the orthogonal direction, the slider may be retracted if the slider is in the puncture state. As the elements enter into the slider, the left and right elements gradually mesh and the slider can be more smoothly retracted.

Furthermore, with respect to the left and right elements in a puncturing state, if the slider has an inclined surface portion in which the upper concave portion and the lower concave portion continuously and gradually narrow toward the connecting column over the entire length in the orthogonal direction over the entire length in the orthogonal direction. The slider can be retracted more smoothly.

In addition, in the case of a slider in which the upper and lower protuberances are provided on the upper and lower vanes and the upper and lower protuberances and the upper and lower recesses are provided at the rear, the slider is punctured. The slider can be retracted more smoothly with respect to the left and right elements.

Further, the upper inner surface and the lower inner surface of the upper and lower blades are provided with an upper flat portion and a lower flat portion on the inner side in the left and right direction with respect to the left and right flanges. If the slider has an upper recess and a lower recess, and the upper and lower recesses are gradually expanded from both sides in the left-right direction toward the central part, the puncturing state is obtained. The slider can be smoothly retracted relative to the left and right elements as compared with the conventional case.

Further, according to the slide fastener of the present invention including the slider having the upper and lower recesses and the fastener stringers on the left and right, the slider can be smoothly retracted with respect to the left and right elements in a punctured state.

Furthermore, for the left and right element rows, the user easily creates a punctured state as long as the slide fastener is provided with a non-engaging portion or a weak engagement portion in addition to the engagement row portion in which the elements mutually mesh normally. The puncturing state can be easily eliminated by retracting the slider.

Further, in the case of a slide fastener including a slider having a meshing path on both sides in the orthogonal direction of the connection pillar, the punctured state can be eliminated by advancing and retracting the slider.

Furthermore, two sliders are attached to the left and right fastener stringers, and even in the case of slide fasteners in which the connection columns of the two sliders face each other in the orthogonal direction, both sliders are moved in the orthogonal direction so as to move away from each other. This can eliminate the punk condition.

It is a top view which shows the slide fastener of 1st Embodiment of this invention. It is a perspective view which shows the slider contained in the slide fastener of 1st Embodiment. It is a perspective view which shows the inner surface of the upper blade of the slider of FIG. It is a perspective view which shows the inner surface of the lower blade of the slider of FIG. It is sectional drawing which shows the inner surface of the upper blade of the slider of FIG. It is sectional drawing which shows the inner surface by the side of the lower blade of the slider of FIG. FIG. 7 shows a rear side of a cross-sectional view taken along the line VII-VII in FIG. FIG. 7 shows a rear side of a cross-sectional view taken along line VIII-VIII in FIG. FIG. 6 is a cross-sectional view taken along the line IX-IX in FIG. 6, and the upper side of the upper blade is omitted from the upper side. FIG. 7 is a cross-sectional view taken along the line XX in FIG. It is a top view which shows the state which a pair of fastener stringer punctures at the back opening side of a slider. It is a top view which shows the state which is making the slider back. It is a top view which shows the state which retracted the slider to the back stop. It is sectional drawing which shows the state of a pair of fastener stringer in the inside of a slider trunk | drum. FIG. 15 shows an essential part of a cross-sectional view taken along the line XV-XV in FIG. The rear in the lower blade side in the XVI-XVI line cutting section sectional view of Drawing 15 is shown. The principal part of the XVII-XVII line cutting part cross-sectional view of FIG. 14 is shown. The principal part of the XVIII-XVIII line cutting part cross-sectional view of FIG. 14 is shown. It is a perspective view showing a parker. FIG. 5 is a perspective view showing a slide fastener attached to a collar of a parker. It is a top view which shows the slide fastener of 2nd Embodiment of this invention. It is sectional drawing which shows the slider trunk | drum of the slide fastener of 2nd Embodiment. It is sectional drawing which shows the principal part of the slider of 3rd Embodiment of this invention. The principal part of the XXIV-XXIV line cutting part cross-sectional view of FIG. 23 is shown.

As shown in FIG. 1, the slide fastener 1 according to the first embodiment of the present invention includes a pair of opposing fastener stringers 2 and 2 and a slider 6 for opening and closing the pair of fastener stringers 2. As described in the background art section, the longitudinal direction of the pair of fastener stringers 2 and 2 (longitudinal direction of the fastener tape 3 described later) is the front and back direction (the upper direction in FIG. 1 is the forward direction, and the lower direction in FIG. The direction in which the pair of fastener stringers 2 and 2 oppose each other is referred to as the left-right direction, and the thickness direction perpendicular to the plane of the fastener tape 3 is referred to as the up-down direction. Hereinafter, the directionality will be described in the same manner in the description of each drawing. The slider 6 will also be described in this direction. Incidentally, the left-right direction is a direction horizontal to the plane of the fastener tape 3 and orthogonal to the longitudinal direction, and is also referred to as a lateral width direction. Further, the front-rear direction is also referred to as an orthogonal direction orthogonal to the vertical direction and the left-right direction.

The pair of fastener stringers 2 includes a pair of opposing fastener tapes 3 and a plurality of elements 4 provided at equal intervals along the front-rear direction at opposing side edges of the respective fastener tapes 3. ing. An element row 4a is formed by the large number of elements 4 arranged in the front and rear direction, and in the illustrated example, the element row 4a is formed by a coiled continuous element 4b in which the large number of elements 4 are connected in the front and rear direction There is.

The continuous element 4b is obtained by winding a synthetic resin monofilament in a fixed direction. More specifically, one of the elements 4 in the continuous element 4b mainly extends in the vertical direction from the upper end of the meshing head 41 toward the fastener tape 3 as shown in FIG. The upper leg 42 extending in the width direction, the reversing portion 43 at least downwardly from the end of the upper leg 42 on the side of the fastener tape 3, and the lower end of the reversing portion 43 mainly in the lateral direction And an extending lower leg portion 44, and the meshing head 41, the upper leg portion 42, the reversing portion 43, and the lower leg portion 44 are spirally connected in order. The lower end of the meshing head 41 of the adjacent element 4 is connected to the end of the lower leg 44 of each element 4 on the side of the fastener tape 3, and the multiple elements 4 are connected in this manner. The coiled continuous element 4b is in the closed state.

The fastener tape 3 for fixing such a continuous element 4b is in the form of a strip (elongated rectangular cloth), and in the illustrated example, is knitted by a knitting yarn in a state where the wales 3a project downward from the lower surface of the fastener tape 3 There is.
Then, the continuous element 4b is knitted on the one surface side of the upper and lower surfaces of the fastener tape 3 on the opposite side edge on the lower surface side in the illustrated example, simultaneously forming the fastener tape 3 by the fixing yarn 31 which is a part of the knitting yarn. Is fixed by As a result, a large number of meshing head portions 41 are arranged at regular intervals along the longitudinal direction of the fastener tape 3. Further, the meshing head portions 41 of the two continuous elements 4b mesh with each other by meshing the meshing head portions 41 of the other continuous element 4b between the meshing head portions 41 adjacent to each other in the front and back of the one continuous element 4b. The meshing row portion 4a1 is formed. The fixing thread 31 may be a sewing thread, and the continuous element 4b may be sewn and fixed by the fixing thread 31 on the surface of the woven or knitted fastener tape 3.

Further, among the multiple meshing heads 41 in at least one continuous element 4b, the meshing head 41 in the middle in the longitudinal direction (in the illustrated example, the meshing head 41, a part of the upper leg 42, and the lower leg 44). A portion that does not engage with both continuous elements 4b (a portion where the left and right fastener tapes 3, 3 substantially face each other without substantially the element 4), that is, a non-engaging portion 4a2 It is formed. In the example of illustration, the meshing head 41 of both continuous elements 4b is cut off in a predetermined plurality of places to the full length of fastener tape 3, and element 4 cut off in this way turns into a dummy element 4. In this state, each element row 4a is in a state where a plurality of continuous elements 4b connecting the plurality of elements 4 adjacent in the front-rear direction are provided at intervals in the longitudinal direction of the fastener tape 3. Further, the plurality of meshing row portions 4a1 are formed at intervals in the longitudinal direction of the fastener tape 3, and the non-meshing portion 4a2 is disposed between the meshing row portions 4a1 adjacent to each other in the front and back direction. Here, in the meshing row portion 4a1, the left and right elements 4, 4 are normally meshed alternately with each other at the meshing head portion 41 of a predetermined form. When the non-engaging portion 4a2 applies a tensile force (lateral pulling force) in the left-right direction in an attempt to separate the pair of fastener stringers 2 from each other, the left and right elements 4 of the non-engaging portion 4a2 engage with each other There is no meshing force that withstands the lateral pulling force compared to the meshing row 4a1. Therefore, first, the non meshing portion 4a2 is opened, and the meshing state of the meshing row 4a1 is sequentially separated starting from that point , A pair of fastener stringers 2, 2 can be opened.

The non-engaging portion 4a2 is not only the case where the left and right fastener tapes 3, 3 face each other through the dummy element 4 as described above, but there is no element 4 at all, and the left and right fastener tapes 3, 3 are The case of facing directly is also included.

Also, in the non-engaging portion 4a2, the left and right elements 4, 4 are alternately engaged normally, but differently, for example, the left and right elements 4, 4 are alternately engaged. A weak meshing portion may be formed in which the meshing force between the two is weaker than the meshing force of the meshing row portion 4a1. In this case, for example, the dimension in the front-rear direction of the meshing head in the weak meshing portion is smaller than the dimension in the front-rear direction of the meshing head 41 in the meshing row portion 4a1. The mutual meshing dimensions can be made to differ, thereby forming a weak meshing portion. The lateral pulling force required to separate the weakly meshed portion can be set as appropriate, but as an example, it is set to 10N to 100N.

Further, in the illustrated example, the pair of fastener stringers 2 and 2 are provided with the fasteners 5 on the lower side which is one side in the front-rear direction with respect to the element row 4a. , 3 are fixed across opposite side edges. Therefore, the pair of fastener stringers 2 and 2 are integrated by the fastener 5. When the user moves the slider 6 forward from the stopper 5 side, the elements 4 of the pair of fastener stringers 2, 2 mesh with each other, and the pair of fastener stringers 2, 2 can be closed. By moving the slider 6 backward with respect to the pair of fastener stringers 2 and 2 in the folded state, the elements 4 in the meshed state are separated, and the pair of fastener stringers 2 and 2 can be opened.

With the pair of fastener stringers 2, 2 engaged by the meshing row portion 4a1, when the user pulls the left and right fastener tapes 3, 3 so as to separate in the left-right direction, the meshing row portion 4a1 from the vicinity of the non meshing portion 4a2. The engagement between the interlocking head portions 41 of the element 4 is forcibly released, and the pair of fastener stringers 2 and 2 are punctured behind the slider 6. In order to eliminate such a puncture state, it is necessary to move the slider 6 backward with respect to the pair of fastener stringers 2, 2.

As shown in FIGS. 2 to 6, the slider 6 includes a slider body 7, a pull attachment part 8 provided on the upper surface of the slider attachment 7, and a pull 9 attached to the pull attachment part 8. It is. Each component will be described in detail below.

The slider body 7 is a central portion in the lateral width direction between the upper and lower blades 71 and 72 and the upper and lower blades 71 and 72 disposed to face each other with a space between the upper and lower sides, and the front side , And four flanges 74 respectively projecting from the left and right ends of both the upper and lower blades 71 and 72 toward the opposite side.

The space between the upper blade 71 and the lower blade 72 is opened forward from both sides in the left-right direction with respect to the connecting post 73, and each opening is referred to as a shoulder 75. Further, on the rear side of these shoulders 75, left and right flanges 74, 74 project downward from the both ends in the width direction of the upper vane 71. The left and right flanges 74 and 74 are inclined in the left-right direction so as to gradually narrow the distance in the left-right direction toward the rear, and then extend rearward to make the distance in the width direction constant. Further, the left and right flanges 74, 74 slightly protrude upward from both end portions in the width direction of the lower wing plate 72. Incidentally, the lower left and right flanges 74, 74 have substantially the same shape as the upper left and right flanges 74, 74. A gap narrowed by the upper and lower flanges 74 facing each other is a passage port 77 for the fastener tape 3. In addition, an opening whose width is narrowed by the upper and lower flanges 74 is formed between the upper blade 71 and the lower blade 72 at the rear end, and this opening is called a rear opening 76. The rear opening 76 is substantially rectangular. Further, between the upper blade 71 and the lower blade 72, a Y-shaped guide path 78 extending in the front-rear direction is formed by the connecting pillar 73 and the upper and lower left and right flanges 74. More specifically, the guide path 78 is composed of a straight trunk line 78a extending from the connection post 73 to the rear opening 76, and two branch paths 78b bifurcated from the trunk line 78a. That is, the guide path 78 is in the vicinity of the connection post 73 which is a branch point of the branch paths 78b and 78b branched to the left and right of the connection post 73 and the left and right branch paths 78b and 78b (rear side in the illustrated example). And a trunk line 78a extending in a straight line from the rear end of the slider body 7 (the end away from the connecting post 73). The ends of the upper and lower blades 71 and 72 in the branch passage 78b are shoulder opening ends, and the shoulder openings are located on the side of the connecting post 73 and on the left and right of the connecting post 73. The end of the upper blade 71 and the lower blade 72 in the trunk line 78a at the opposite end is the rear end. The main line 78a moves the slider trunk 7 so that the left and right element arrays 4a and 4a separated by the branch path 78b pass through the main line 78a, so that the left and right element arrays 4a mesh with each other. Since it comes out from the rear end side, it is also called a meshing passage 78a.

Further, the inner surface side which is the opposing surface of the upper wing plate 71 is provided with a flat upper flat portion 71a, and an upper raised portion 71b for suppressing the left and right elements 4, 4 (the left and right meshing head portions 41, 41) It is formed at least in a range from the connection post 73 to the rear opening 76 in a state of slightly projecting toward the lower blade 72 side with respect to the upper flat portion 71 a. More specifically, the upper raised portion 71b is provided on an upper raised trunk portion 71b1 provided at a portion (a position corresponding to the central portion of the horizontal width of the trunk line 78a) from the connection pillar 73 toward the rear opening 76; It comprises the upper protruding branch portion 71b2 bifurcated to both sides in the left-right direction of the connecting post 73 from the side of the front end portion in the portion 71b1.

The width of the upper raised trunk line portion 71b1 is substantially constant at the front, gradually narrows rearward at an intermediate portion in the front-rear length direction, and maintains the narrow predetermined width at the rear, It has a semicircular shape at the tip. Incidentally, a claw hole 71c is formed to penetrate in the vertical direction of the upper wing plate 71 at the middle portion of the front and rear long length of the upper protruding trunk portion 71b1. A stop spring of a plate spring (not shown) is provided to be able to project and retract from the hook hole 71c. When the pull tab 9 is pulled, the stop claw sinks into the claw hole 71c, and when the pull force on the pull handle 9 is released, the tip of the stop claw protrudes from the claw hole 71c and engages with the element 4. It has become.

Further, the rear end of the upper protruding trunk portion 71b1 does not reach the rear opening 76 (the rear end of the upper wing plate 71), and there is a space between the rear end of the upper protruding trunk portion 71b1 and the rear opening 76. An upper recess 71 d is formed on the inner surface of the upper vane 71 at a position corresponding to this distance.

As shown in FIGS. 5 to 10, the upper recess 71 d is semicircular when viewed from the lower blade 72 side in the illustrated example, and the side to be a semicircular chord is the upper blade 71. It is located at the rear end. Moreover, the upper recess 71 d is recessed in a circular arc when viewed from the rear, and the most recessed position is at the middle of the lateral width. With such a shape of the upper recess 71d, the upper flat portion 71a originally existing at the rear of the upper protruding trunk portion 71b1 is also scraped so as to be gradually recessed deeper by a cutter having an arc-shaped blade portion Is a shape that can be

For this reason, the upper recess 71d is recessed from the upper flat portion 71a, and the amount of recess is gradually reduced from the rear opening 76 toward the front, and in the example shown in the figure, a constant inclination from the rear to the front It is set as the inclined surface part 71d1 which descend | falls at a corner. Note that the inclined surface portion 71d1 is not limited to one that descends at a constant inclination angle from the front to the rear as in the illustrated example, but includes an inclined surface that curves in an arc shape from the front to the rear. To be curved in an arc shape is an arc shape that bulges downward, or an arc shape that bulges upward. However, it is assumed that the front end of the arc-like arc which bulges downward is disposed forward of the front end of the arc chamfering the rear end portion of the upper surface of the upper wing plate 71.

Further, as in the case of the inclined surface 71d1 of the upper recess 71d, another inclined surface 71b3 is provided at the rear of the upper raised portion 71b. The inclined surface portion 71d1 of the upper concave portion 71d and the inclined surface portion 71b3 of the upper raised portion 71b have the same inclination angle and are continuously formed in a flush manner.

Incidentally, at the rear end of the upper wing plate 71, the upper recess 71d is disposed at the center in the left-right direction, and left and right upper flat portions 71a, 71a formed horizontally on both sides in the left-right direction of the upper recess 71d. There is a positional relationship in which the left and right flanges 74, 74 are sequentially arranged. The upper concave portion 71d is recessed in a concave shape with respect to a plane obtained by connecting the upper flat portions 71a and 71a on both sides of the upper concave portion 71d with an imaginary line. For this reason, the thickness of the upper blade 71 at the rear end portion is gradually reduced from both sides in the left-right direction toward the central portion. The vertical distance between the opposing upper flat surface portion 71a and the lower flat surface portion 72a is smaller than the vertical distance between the upper concave portion 71d and the lower concave portion 72d, and the vertical distance between the upper concave portion 71d and the lower concave portion 72d is It spreads gradually toward the central part from the both sides of 71 d and 72 d in the left-right direction. The continuous portion of the left and right upper flat portions 71a and 71a and the left and right flanges 74 and 74 is a slope such that the width of the rear opening 76 gradually increases downward.

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

In addition, on the inner surface of the lower wing plate 72, right and left recessed grooves 72e, 72e are provided on the inner side of the left and right lower flat portions 72a, 72a on both sides in the left and right direction of the lower raised portion 72b (more specifically, the lower raised trunk portion 72b1) It is formed until it reaches back port 76 along. However, the lower recess 72d is located between the left and right recessed grooves 72e and 72e and behind the lower protrusion 72b, and the lower recess 72d is semicircular like the upper recess 71d as described above. The lateral width at the rear end of the lower recess 72d reaches near the outside of the recessed groove 72e. For this reason, each concave groove 72e has a narrow width in the vicinity of the rear opening 76. Incidentally, these left and right recessed grooves 72e, 72e are relief portions of the fastener tape 3.

Incidentally, at the rear end of the lower wing plate 72, the lower recess 72d is disposed at the central portion in the left-right direction, and on both sides in the left-right direction of the lower recess 72d The planar portions 72a, 72a and the left and right flanges 74, 74 are arranged in order. The continuous portion of the left and right lower flat portions 72a, 72a and the left and right flanges 74, 74 is a slope such that the width of the rear opening 76 gradually increases upward.

The vertical distance between the upper recess 71 d and the lower recess 72 d is gradually narrowed toward the front continuously by the inclined surface portions 71 d 1 and 72 d 1. The upper raised portion 71b and the lower raised portion 72b are located forward of the upper recessed portion 71d and the lower recessed portion 72d, and the upper and lower spaces between the rear end portions of the upper recessed portion 71b and 72b3 are also formed by the inclined surface portions 71b3 and 72b3. It is configured to be gradually and gradually narrowed toward the front continuously with the inclined surface portions 71d1 and 72d1 of 71d and the lower concave portion 72d. The vertical distance between the upper recess 71 d and the lower recess 72 d is at least the double of the vertical width of the meshing head 41 of the element 4 at the widest point (center in the left-right direction at the rear end). More specifically, the vertical distance at the widest point is equal to or larger than the sum of twice the vertical width of the meshing head 41 of the element 4 and the thickness of the fastener tape 3. On the other hand, the size of the rear opening 76 is slightly larger than the upper, lower, left, and right dimensions when the left and right elements 4 are engaged.

A pull attaching part 8 is provided on the upper surface of the slider body 7 at the central part in the widthwise direction so as to project like a gate. The annular form of one end of the pull 9 is provided on the pull attaching part 8. By the insertion of the portion 91, the pull 9 is attached to the pull attachment portion 8 so as to be rotatable in the front-rear direction.

The slide fastener 1 of the first embodiment described above is used in the following procedures (1) to (4).
(1) First, as shown in FIG. 1, when the user pulls the left and right fastener tapes 3, 3 apart from each other while the pair of fastener stringers 2, 2 are engaged, the non-engaging portion 4a 2 From this, a pulling force is applied to the meshing row portion 4a1, and the meshing of the elements 4 of the meshing row portion 4a1 is forcibly released. As a result, as shown in FIG. 11, on the rear side of the rear opening 76 of the slider 6, the pair of slide fasteners 1 are in a punctured state (a separated state). Also, the inside of the slider body 7 in this punctured state is shown in FIG.

(2) Next, as shown in FIG. 12, when the slider 6 is retracted, the left and right elements 4, 4 sequentially enter the inside of the slider body 7 (main track 78a) from the rear opening 76. As shown in FIG. 15, when viewing the slider body 7 from the rear at this time, the left and right elements 4, 4 are arranged such that the meshing head portions 41, 41 of the left and right elements 4, 4 overlap with each other. It enters the inside of the slider body 7. The element 4 entering the inside of the slider body 7 is regulated by the upper blade 71, the lower blade 72, and the four flanges 74 in the upper and lower, right and left directions. Then, the element 4 on the upper side (left side in the figure) of the left and right elements 4 and 4 is inclined upward to the right shoulder, the meshing head 41 is accommodated in the upper recess 71 d side, and the lower side (right side in the figure) The element 4 is inclined downward to the left and the mating head 41 is accommodated on the lower recess 72 d side.

(3) In addition, since the vertical distance between the upper recess 71 d and the lower recess 72 d and the vertical distance at the rear end of the upper ridge 71 b and the lower ridge 72 b are gradually narrowed toward the front, As shown in FIG. 16, as the slider 6 moves rearward, the meshing head 41 of the lower element 4 is sequentially guided by the inclined surface 72d1 of the lower recess 72d and the inclined surface 71b3 at the rear end of the lower ridge 72b. It is forced to move upward by Although not shown in FIG. 16, as the slider 6 moves backward, the meshing head 41 of the upper element 4 is also forcibly moved downward as it moves forward. Then, as the slider 6 moves rearward, the inclinations of the left and right elements 4, 4 gradually become loose as shown in FIG. 17, and the meshing head portions 41, 41 of the left and right elements 4, 4 gradually become Finally, as shown in FIG. 18, between the upper ridge 71b and the lower ridge 72b, the meshing heads 41, 41 of the left and right elements 4, 4 are completely meshed with each other. It will be in the state.

(4) As the slider 6 further moves backward, the meshing head portions 41 of the left and right elements 4, 4 once meshed collide with the connecting post 73, and the left and right elements 4, 4 are separated left and right. Such a series of phenomena occur inside the slider 6 when the slider 6 is retracted, and as shown in FIG. 14, the slider 6 is finally retracted until it collides with the stopper 5. By this, the punk state is eliminated.

The slide fastener 1 according to the first embodiment is attached to the rear side of the collar P1 of the hoodie P, as shown in FIGS. 19 and 20, for example. When the collar P1 is in the form of a bag and the hat P2 is accommodated therein, the slide fastener 1 is normally closed.

If the user wants to wear the hat P2 while wearing the hoodie P, the slide fastener 1 is opened by pulling the pair of fastener stringers 2, 2 so as to pull up and down without operating the slider 6. become. That is, it is possible for the user to actively create a puncture and open the pair of fastener stringers 2, 2. For example, the slide fastener 1 may be attached to, for example, the side or back portion of a garment other than Parker P in order to form a ventilation part for putting out sweating when worn, in this case, sweating Since the slide fastener 1 is opened by applying a lateral pulling force through clothes when it has been done, the convenience is excellent. It can also be used for clothing and bag pockets. As described above, the user does not necessarily have to operate the slider 6 in order to open the pair of fastener stringers 2 closed, and as a result, the convenience of the slide fastener 1 is improved. Also, it is possible to operate by opening the slider 6 as usual.

In the slide fastener 1 according to the second embodiment of the present invention, as shown in FIGS. 21 and 22, the slider 61 is different from the slider 6 in the first embodiment, and the pair of fastener stringers 2 is a first embodiment. The pair of fastener stringers 2 and 2 are substantially identical to the pair of fastener stringers 2 (two fasteners 5 are provided in front of and behind the element row 4a).

The slider 61 here acts to close the pair of fastener stringers 2, 2 not only when moving forward but also when moving backward. In this way, the slide fastener 1 is not opened by the movement of the slider 61 when the slider 61 moves forward and backward. Specifically, the slider 61 has a structure in which two sliders 6 of the first embodiment are joined in a vertically symmetrical manner on the connection pillar 73 side. More specifically, the connecting post 73 is longer in the front-rear direction than the connecting post 73 in the first embodiment, and the upper vane 71 and the lower vane 72 are also the upper vane 71 in the first embodiment, the lower. It is longer in the front and back direction than the vanes 72. A connecting post 73 intervenes between middle portions of the long upper vane 71 and the lower vane 72 in the front-rear direction. Further, flanges 74 are respectively provided at the front and rear ends of the upper and lower blades 71 and 72 at the end portions in the width direction, and the guide path 78 is a Y-shaped guide path 78 in the first embodiment. It is continuous vertically symmetrically with the tip end side of the branch path 78b as the center. In other words, the guide path 78 is in the front-rear direction both sides (the front of the connecting post 73) in the vicinity of the connecting pillar 73 which is the two branching points of the left and right branch paths 78b, 78b bifurcated and the left and right branch paths 78b, 78b It consists of two main tracks 78a and 78a which extend from the side and the rear side in a straight line toward the front and rear ends. By the way, depending on the point of view, it is possible for one of the two branch points to be the branch point and the other to be the junction point. Then, a pair of shoulders 75 and 75 provided on both sides in the left and right direction of the connecting pillar 73 are located in the middle in the front and rear direction, and are opened by the upper and lower blades 71 and 72 and the upper and lower left and right flanges 74 on the front side. Is formed.
This opening is referred to as a front opening 79, and the front opening 79 is in symmetrical position with the rear opening 76. Further, in the vicinity of the front opening 79, similarly to the vicinity of the rear opening 76, an upper recess 71d and a lower recess 72d are formed in the front of the inner surface of the upper wing plate 71 and the lower wing plate 72.

The slide fastener 1 according to the third embodiment described above is the same as the first embodiment except that the slider 62 is different from the slider 6 in the first embodiment, as shown in FIGS.

The slider 62 here has a step shape in which the upper recess 71 d and the lower recess 72 d are formed horizontally with respect to the upper flat portion 71 a and the lower flat portion 72 a and the amount of depression is constant in the front and rear direction and the left and right direction. The bottoms are flat portions 71 d 2 and 72 d 2. Therefore, the boundary between the upper protrusion 71 b and the upper recess 71 d and the boundary between the lower protrusion 72 b and the lower recess 72 d are all stepped. Further, as viewed from the rear, the upper recess 71 d and the lower recess 72 d are rectangular.

When the user retracts the slider 62 when the pair of fastener stringers 2 and 2 are in a punctured state, the left and right elements 4 and 4 (not shown) are guided from the rear opening 76 to the guide path 78 of the slider 62 And the space between the lower recess 72d. The upper recess 71 d and the lower recess 72 d have the bottom surfaces as the flat portions 71 d 2 and 72 d 2, so even if the left and right elements 4 and 4 move forward in the upper recess 71 d and the lower recess 72 d, the upper recess 71 d The vertical distance between the lower recess 72d and the lower recess 72d is not narrowed. However, the left and right elements 4, 4 are engaged with each other at the junction of the Y-shaped guide path 78, and the left and right elements 4, 4 are the upper blade 71, the lower blade 72, and the left and right flanges 74, 74. The left and right elements 4, 4 are gradually meshed with each other as the left and right elements 4, 4 move forward due to the restriction of the top, bottom, left, and right.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the scope of the invention. For example, although the number of sliders 6 and 62 used for the slide fastener 1 is one in the case of the one having the Y-shaped guide path 78 as in the first and third embodiments, it is not limited thereto. Two may be sufficient. In this case, the two sliders 6 and 7 are arranged such that the connecting columns 73 and 73 of the two sliders 6 and 62 face each other in the front-rear direction (the positional relationship in which the Y-shaped guide paths are symmetrical in the front-rear direction) 62 shall be attached to the left and right fastener stringers 2, 2. In this way, even if a puncture condition occurs on the main road side with respect to both sliders 6 and 62, the puncture condition is caused by moving one slider 6 or 62 away from the other slider 6 or 62. Can be eliminated.

Further, when viewed from the vertical direction, the shapes of the upper recess 71 d and the lower recess 72 d are semicircular in the above embodiment, but the shape is not limited to this and may be other shapes such as rectangular. Furthermore, although the upper recess 71 d and the lower recess 72 d are rectangular when viewed from the rear as in the third embodiment, they are inclined such that the amount of depression is gradually reduced toward the front as in the first embodiment. It may be a face portion. Further, although the upper recess 71 d and the lower recess 72 d are provided at the center of the upper blade 71 and the lower blade 72 in the left-right direction in the above embodiment, the entire range between the left and right flanges 74 and 74 is provided. It may be provided.

In addition, the non-engaging portion 4a2 is not limited to the embodiment described above in which the engaging head 41 of the element 4 is removed, but the engaging head 41 may not be protruded in the front-rear direction similarly to the reversing portion 43. Moreover, although the element row | line 4a used the continuous element 4b in the said embodiment, it may not be restricted to this, but may form it by spacing a large number of elements 4 in the front-back direction. In this case, the element row 4a is formed by attaching the elements 4 at equal intervals in the front-rear direction to the engaging row portion 4a1 and attaching it to the fastener tape 3 and not attaching the element 4 to the fastener tape 3 with respect to the non-engaging portion 4a2. Form as.

Further, although four flanges 74 are provided in total in the left and right of the upper blade 71 and the lower blade 72 in the embodiment, the invention is not limited thereto, either of the upper blade 71 or the lower blade 72 Two flanges 74 may protrude from the left and right.

In the above embodiment, the upper flat portion 71a and the lower flat portion 72a are divided into right and left on the opposing inner surface of the upper wing 71 and the lower wing 72 with the upper ridge 71b and the lower ridge 72b as a center. Although provided, the invention is not limited to this, and the type without the upper raised portion 71b and the lower raised portion 72b, that is, even if provided continuously on the opposite inner surfaces of the upper wing 71 and the lower wing 72 good.

In addition, although the sliders 6, 61 and 62 are configured by the slider body 7, the pull attachment part 8 and the pull attachment 9 in the above embodiment, the invention is not limited thereto, and the pull attachment part 8 is not provided. It may be of the type, that is, one composed of the slider body 7 and the pull 9 (the pull 9 is fixed to the slider body 7).

1 slide fastener 2 fastener stringer 3 fastener tape 3a wale 31 fixed thread 4 element 41 meshing head 42 upper leg 43 inverted portion 44 lower leg 4 a element row 4 a 1 meshed row portion 4 a 2 non meshed portion 4 b continuous element 5 fasteners 6 slider 61 Slider 62 slider 7 slider body 71 upper wing plate 71a upper flat plate 71a upper ridge 71b1 upper ridge trunk 71b2 upper ridge branch 71b3 sloped surface 71c claw hole 71d upper recess 71d1 sloped surface 71d2 lower surface 72 lower wing 72a Flat portion 72b Lower ridge portion 72b1 Lower ridge trunk portion 72b2 Lower ridge branch portion 72b3 Lower slope branch portion 72d Lower recess 72d1 Lower slope portion 72d2 Flat portion 72e Recess groove 73 Connecting pillar 74 Flange 75 Shoulder opening 76 Rear opening 77 Passage opening 78 Guideway 78a (Mapping path)
78b branch path 79 front opening 8 pull attachment portion 9 pull 91 ring portion P parker P1 collar P2 hat

Claims (9)

1. Upper and lower wings (71) and lower wings (72) facing each other at up and down intervals, and the upper and lower wings (71) and the lower wings (72) connected to each other at the center in the left-right direction A connecting column (73), and a flange (74) which is at least one of the upper blade (71) and the lower blade (72) and protrudes from both end portions in the left-right direction in the direction to narrow the vertical distance A slider (6, 61, 62) for a slide fastener comprising a slider body (7) and a pull (9) provided on the upper surface side of the slider body (7)
   Between the upper blade (71) and the lower blade (72), a guide path (78) is extended in the vertical direction and the direction orthogonal to the left and right direction by the connection post (73) and the flange (74). Formed,
   The guide path (78) is in the orthogonal direction from the vicinity of the connection post (73) which is a branch point of the branch (78b) branched to the left and right of the connection post (73) and the left and right branches (78b) And a meshing path (78a) toward the end of the slider body (7) located in
   The upper surface of the upper blade (71) and the lower blade (72) are opposed to each other and at least a central portion in the left-right direction of each other, and the end on the meshing passage (78a) side is A slider for a slide fastener comprising a recess (71d) and a lower recess (72d).
2. The upper and lower spaces in the upper recess (71d) and the lower recess (72d) are gradually narrowed toward the connecting post (73) over the entire length in the orthogonal direction. Slide fastener slider.
3. The upper concave portion (71d) and the lower concave portion (72d) have inclined surface portions that continuously and gradually narrow the vertical distance toward the connecting post (73) over the entire length in the orthogonal direction. A slider for a slide fastener according to claim 2.
4. On the opposing inner surface of the upper blade (71) and the lower blade (72), an upper protuberance (71b) extending from the connection post (73) toward the end, and the connection post A lower ridge (72b) extending from (73) towards said end,
   The upper recess (71d) and the lower recess (72d) are provided closer to the end of the slider body (7) than the upper protrusion (71b) and the lower protrusion (72b). The slider for a slide fastener according to claim 3, characterized in that:
5. On the inner surface where the upper blade (71) and the lower blade (72) are opposed, an upper flat portion (71a) and a lower flat portion (72a) are provided inward in the left-right direction from the left and right flanges (74). The upper recess (71d) is disposed at the center in the left-right direction of the upper flat portion (71a), and the lower recess (72d) is disposed at the center in the left-right direction of the lower flat portion (72a).
   The vertical distance between the opposing upper flat surface portion (71a) and the lower flat surface portion (72a) is smaller than the vertical distance between the upper concave portion (71d) and the lower concave portion (72d),
   The slide according to claim 3 or 4, characterized in that the vertical distance between the upper recess (71d) and the lower recess (72d) is gradually increased from both sides in the left-right direction toward the central portion. Fastener slider.
6. The slider (6, 61, 62) for slide fastener according to any one of claims 1 to 5, and the left and right fastener stringers on which the sliders (6, 61, 62) are movably attached in the orthogonal direction 2) and,
   The left and right fastener stringers (2) are attached to the left and right fastener tapes (3) and a plurality of elements attached along the orthogonal direction at opposing side edges of the fastener tapes (3) 4) A slide fastener comprising: left and right element rows (4a) formed by inserting the left and right element rows (4a) into the sliders (6, 61, 62).
7. In the left and right element rows (4a), in addition to the meshing row portion (4a1) in which some elements (4) of the multiple elements (4) alternately mesh normally in a predetermined form, the elements (4a) 4) substantially without the non-engaging portion (4a2) where the left and right fastener tapes (3) substantially face each other, or the partial elements (4) of the meshing row portion (4a1) The slide fastener according to claim 6, characterized in that a weak meshing portion in which the elements are meshed weakly is provided.
8. The slider (61) is characterized by inserting the left and right element rows (4a) in a state where the meshing paths (78a) are provided on both sides in the orthogonal direction of the connection post (73). The slide fastener according to claim 6 or 7.
9. Two of the sliders (6, 61) are attached to the left and right fastener stringers (2), and the connection pillars (73) of the two sliders (6, 61) are in a positional relationship in which they oppose each other in the orthogonal direction. The slide fastener according to claim 6 or 7, characterized in that

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