JP2007054176A - Slider for hidden slide fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slider for a hidden slide fastener capable of smoothly guiding elements to the slider even if a strong lateral pulling force is applied thereto in closing the slide fastener in a case of, for example, being applied to a seat cover of a seat. <P>SOLUTION: This slider 100 for the hidden slide fastener is provided with a pair of first flanges 102 and 103 having inverse-L-shaped cross section along the right/left side edges of a lower wing plate 101, and a guide post 104 erected in a central part of one end of the lower wing plate 101 and having an approximately elliptical horizontal cross section. A wedge-shaped space formed between the upper plate portions 102a and 103a of the pair of first flanges 102 and 103 is provided with a rectangular area 105a and a wedge-shaped area 105b integrally formed on the upper face of the guide post 104, and a second flange 105 overhung to the outside along the outer circumference of the guide post 104. The height of the lower face of the shoulder side end of the second flange 105 is set higher than the heights of the other areas and is formed with a tapered face 105c stepwise and gradually increasing a taper angle α1-α5 towards the rear side on the circumferential face. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a slider for a hidden slide fastener of a type in which the main body of the slider that is the opening and closing tool does not appear to the outside when the slide fastener is closed, and even when a strong lateral pulling force acts when the slide fastener is closed, The present invention relates to a slider for a hidden slide fastener that enables smooth slider operation.

  This type of hidden slide fastener has been widely used in women's clothing, but in recent years, it has become advancing to other fields such as automobiles and train seats. In the seat, a seat cover is covered with a cushion body that is previously formed integrally with the frame. At this time, the size of the seat cover is made smaller than the large diameter size of the cushion body, and the cushion body is covered in a compressed state so as to suppress the occurrence of looseness and deformation occurring in the external shape as much as possible. Further, even when elastically deforming so as to easily correspond to the load distribution of a human body or the like at the time of sitting, it is surely returned to its original shape when it is separated from the seat, thereby preventing the deformation.

  The seat cover is usually knitted or woven using a skin layer made of natural leather, synthetic leather, or knitted fabrics with various structures, a thin elastic intermediate layer made of polyurethane foam sheet, etc., and extremely thin yarns. And a back base fabric layer made of a thin knitted fabric or the like obtained by laminating, and the like. Usually, these seats are cut into a plurality of sheet pieces in accordance with the shape of the seat, and these seat pieces are combined and sewn three-dimensionally to produce a seat cover. However, if the entire seat cover is manufactured by sewing, there are many cases where the seat cover cannot be covered on the cushion body of the seat having a complicated appearance. Therefore, conventionally, an unsewn portion is made in advance, and after covering the cushion body, the unsewn portion is sewn by hand-sewing.

  However, in this sewing by hand-sewing, a difference in quality and sewing time tends to occur in a finished product due to a difference in skills of sewing workers. Therefore, in recent years, in order to eliminate hand-sewing, a slide fastener, particularly a hidden slide fastener in which the slider main body does not appear to the outside, is often used along a part of the sewing portion of the seat cover, for example, a ball edge. As a result, all sewing can be performed with a sewing machine, and the conventional problems due to the difference in skills are greatly eliminated, and the production efficiency is further improved.

  For example, as disclosed in Japanese Patent Publication No. 50-25855 (Patent Document 1), the hidden slide fastener has a side edge perpendicular to the slider sliding direction of the lower blade of the slider body. A pair of left and right first flanges having an inverted L-shaped cross section are erected. The pair of first flanges include a straight line portion that is parallel in plan view, and an expanded portion that expands while being bent so as to be separated from each other following the straight line portion. A guide column having a substantially oval horizontal cross section is erected vertically at the end of the lower wing plate on the expanding side. A second flange is integrally formed on the upper surface of the guide column, and a gate-type handle attachment column extending in the sliding direction is integrally formed on the upper surface of the second flange. A pull handle is attached to the pull attachment column so as to be rotatable back and forth in the sliding direction. The second flange extends between the substantially rectangular plate portion that extends outward so as to surround the peripheral surface of the guide column, and the linear portion of the first flange that follows the rectangular plate portion. And a wedge-shaped plate portion having a sharp tip. Here, the end opening on the guide pillar side is referred to as a shoulder opening, and the opening on the opposite side to the guide pillar is referred to as a rear opening.

A space formed by the first flange, the guide column, and the second flange is a guide passage of the meshing element row, and a gap formed between the first flange and the second flange is a guide gap of the fastener tape. On the other hand, in a fastener stringer through which a slider having such a configuration is inserted, a large number of meshing elements are attached by sewing or the like along the opposing side edges of a pair of fastener tapes with the meshing heads inside. Each element mounting edge of the pair of fastener stringers obtained in this way is bent in a U shape along the element mounting edge so that the meshing head of the meshing element protrudes outward, and then bent by a heat set or the like. The shape is fixed. A pair of fastener stringers having such a structure are arranged so that the meshing heads of the elements face each other from the shoulder of the slider and the folded portion of the fastener tape extends outward from the tape guide gap between the first and second flanges. Is inserted.
Japanese Patent Publication No. 50-25855

  In the conventional hidden slide fastener obtained by inserting the slider having the above configuration, particularly when applied to the seat cover of a seat such as the above-mentioned automobile, and finally closing the hidden slide fastener, Since the seat cover is formed smaller than the outer dimension of the cushion body, a strong lateral pulling force is applied to the fastener stringer in the vicinity of the slider. This strong lateral pulling force raises the meshing element row by a structure unique to the above-described hidden slide fastener. In particular, in the conventional slider, a second flange having a thickness substantially equal to that of the first flange extends from the end surface of the guide column on the shoulder opening side to the left and right side surfaces.

  Each element introduced into the shoulder opening while receiving a lateral pulling force at a portion near the shoulder opening of the second flange rises until it is substantially perpendicular to the tape surface of the fastener tape. Until the connecting portion of each element is placed on the upper surface of the lower blade of the slider, the element is first introduced into the element guide passage of the slider to contact the first flange, the guide post, and the upper plate portion of the second flange. Are influenced by the tilting force by the preceding element which is in the tilting posture and the relative tensile force of the fastener tape T based on the sliding operation of the slider. For this reason, the connecting portion of each element is slightly tilted when it is placed on the upper surface of the lower blade of the slider. However, since the tilting is small, the connecting portion of the element is often between the first flange and the second flange. The slider is squeezed, making it impossible for the slider to slide. If the slider is forced to slide here, not only will the element be damaged by the lateral pulling force, but also the bent edge of the fastener tape may be torn.

  The present invention has been made in order to solve such conventional problems. Specifically, the present invention is applied to a seat cover such as a seat seat, and even if a strong lateral pulling force is applied when the slide fastener is closed, the present invention is smooth. An object of the present invention is to provide a slider of a hidden slide fastener that enables sliding operation of the slider.

  The object is that a pair of opposing side edges, which are the main components of the present invention, are bent and fixed in a U-shape, and a number of meshing elements are attached along the outer surface of the bent edge of the side edge. A slider for a hidden slide fastener that engages and disengages each meshing element of the fastener stringer, and the slider has an inverted L-shaped cross section that is erected along right and left side edges perpendicular to the sliding direction of the slider. A lower wing plate having a pair of first flanges, a guide post erected at the center of one end in the sliding direction of the lower wing plate, and an upper plate portion of the pair of first flanges, A rectangular region integrally formed on the upper surface of the guide post; a wedge plate region extending in the sliding direction from the rectangular region; and a second flange projecting outward along the outer periphery of the guide post. Left and right of the peripheral surface of the second flange A taper surface extending upward from the lower end is formed in at least the outer region on the guide column side of the portion intersecting with the straight line L passing through the guide column side end surfaces of the left and right upper plate portions of the first flange, and the taper is formed. The upper edge ridge line portion of the surface is set lower than the upper surface of the upper plate portion of the first flange and higher than the height between the upper surface of the lower blade plate and the lower surface of the upper plate portion. Effectively achieved by the slider for the hidden slide fastener.

  According to a preferred embodiment, the upper end ridge line portion of the tapered surface has the smallest height between the upper end ridge line portion of the second flange portion on the wedge plate region side of the straight line L and the upper surface of the lower blade plate. The upper end ridge line portion of the taper surface extending to the end surface opposite to the wedge plate region side of the straight line L is set so that the height between the upper surface of the lower blade plate gradually increases. Preferably, the tapered surface has a taper angle that changes in a plurality of steps in the circumferential direction of the second flange, and the taper angle in the vicinity of the straight line L of the second flange is the largest, and the guide column extends from the straight line L. The taper angle is set gradually smaller toward the end on the side. Further, the upper surface of the first flange and the upper surface of the second flange are on the same plane, and at least the lower surface of the second flange closer to the wedge plate region than the straight line L is below the lower surface of the first flange. It should be arranged. The taper angles of the plurality of steps may be sequentially changed stepwise within a range of 0 ° to 90 °.

  A first flange formed with a Y-shaped tape guide passage between an upper plate portion of the first flange and the second flange, and divided into inner and outer portions by a long side extension line of a rectangular region of the second flange. In some cases, the lower surface of the edge portion of the inner portion is formed thinner than the lower surface of the outer portion through a step.

Effect

  As described above, the rectangular plate portion integrally formed on the upper surface of the guide column on the guide column side (shoulder side) in the slider for the hidden slide fastener and the wedge plate portion extending in the sliding direction from the rectangular plate portion. Among the second flanges having at least the shoulder opening side of the portion intersecting with the straight line L passing through the guide column side end surfaces of the left and right upper plate portions of the left and right first flanges having inverted L-shaped cross sections rising from the left and right of the lower blade. A tapered surface that extends upward from the lower end is formed in the outer region. The upper end ridge line portion of the tapered surface is set lower than the upper surface of the upper plate portion of the first flange and higher than the height between the upper surface of the lower blade plate and the lower surface of the upper plate portion. Therefore, for example, in a hidden slide fastener attached to a seat cover that covers a seat of an automobile or the like, a very strong lateral pulling force acts on the fastener tape when the fastener is to be closed. The meshing element sequentially introduced into the element guide passage formed by the guide pillar, the first flange, and the second flange is substantially parallel to the tape surface of the fastener tape at a position away from the shoulder mouth. As the element approaches, the connecting portion of the element is up, the meshing head is down and the element mounting portion is upside down, and the posture rises at a right angle to the tape surface.

  In the conventional slider, the dimension between the lower surface and the lower wing plate is not changed in the vicinity of the end portion of the shoulder opening of the second flange and the end portion on the rear opening side. Therefore, although the element placed on the lower wing plate on the shoulder opening side is slightly tilted due to the influence of the element that entered the element passage and the tensile force of the tape and the force to be tilted, it is completely tilted. Introducing into the second flange while interfering with the second flange without tilting, the upper plate portion of the first flange is between the connecting portion of the element and the leg portion while standing up to the shoulder portion. In many cases, the slider is stuck in the gap between the second flange and the second flange.

  On the other hand, in the slider according to the present invention, the height of the upper edge ridge line portion of the tapered surface on the shoulder opening side of the second flange with respect to the lower blade as described above is set higher than that of the rear opening. Even if it is placed on the lower wing plate with a slight tilting posture, it does not interfere with the second flange, and is guided by the tapered surface of the second flange and introduced into the element guide passage. During this introduction, the element connecting portion is hidden on the lower surface of the second flange due to the comprehensive influence of the guide by the taper surface and the force to tilt the element by the tensile force of the preceding element and the fastener tape. Gradually lean to a posture to try. Once the element is introduced into the element guide passage, the tilted posture is ensured by the upper plate portion of the lower blade and the second flange, and the element guide passage relatively smoothly in the element guide passage. For this reason, the meshing head and legs of the element are not sandwiched between the upper plate portion of the lower wing plate and the second flange as in the prior art, and the occurrence of damage to the element and tearing of the fastener tape is prevented. Thus, the hidden slide fastener can be closed without hindrance by the smooth sliding operation of the slider.

  Further, the upper end ridge line portion of the tapered surface has the smallest height between the upper end ridge line portion of the second flange portion on the wedge plate region side of the straight line L and the upper surface of the lower blade, and the straight line L The upper end ridge line portion of the tapered surface extending to the end surface opposite to the wedge plate region side is set such that the height between the upper end ridge line portion and the upper surface of the lower blade is gradually increased. Preferably, the tapered surface has a taper angle that changes in a plurality of steps in the circumferential direction of the second flange, and the taper angle in the vicinity of the straight line L of the second flange is the largest, and the guide column extends from the straight line L. The taper angle is set gradually smaller toward the end on the side. With this configuration, the element smoothly introduced into the element guide passage of the slider as described above has the meshing head guided by the taper surface of the second flange and stepwise on the way to the rear opening. It is guided to the lower surface of the wedge plate area of the flange and is brought into a nearly horizontal engagement posture, and immediately after exceeding the front end of the wedge plate area of the second flange, is completely engaged with the counterpart element and guided to the rear opening. .

  At this time, the upper surface of the first flange and the upper surface of the second flange are arranged on the same plane, and at least the lower surface of the region of the second flange facing the upper plate portion of the first flange is disposed on the first flange. If the taper surface is formed below the lower surface and at the same time the tapered surface is formed downward from the intersecting line with the plane including the lower surface of the upper plate portion of the first flange, the tilting posture of the element that moves relative to the element guide path is reduced. It is maintained stably, and the subsequent meshing with the other party is smoothly and reliably performed.

  When the taper angle changing in multiple stages is gradually increased stepwise in the range of 0 ° to 90 ° from the end on the shoulder opening side to the end on the rear opening side, the element introduced into the guide passage from the shoulder opening becomes a tapered surface. The head of the element is smoothly guided to the rear opening while changing gradually from a standing posture to a posture in which it gradually tilts while sliding in contact with the element, thereby realizing smooth and reliable meshing. The tapered surface formed on the peripheral surface of the second flange is formed simultaneously with the molding of the slider. In order to facilitate the molding, the upper plate portion of the first flange is divided into inner and outer portions along the long side extension line of the rectangular plate portion of the second flange, and the lower surface of the inner region of the divided upper plate portion is stepped. Is formed thinner than the lower surface of the outer region.

Hereinafter, typical embodiments of the present invention will be specifically described based on illustrated examples.
1 to 4 show a first embodiment of the present invention. FIG. 1 is a perspective view of a slider for a hidden slide fastener according to the same embodiment as viewed obliquely from the shoulder side. Also in the slider 100 of the present embodiment, the lower wing plate 101 provided with the first flanges 102 and 103 having inverted L-shaped cross-sections erected along the left and right side edges, and the lower wing, as in the prior art. A guide column 104 having a substantially elliptical horizontal section standing on the shoulder end of the plate 101 in the same direction as the first flanges 102, 103, and the upper surface of the guide column 104 from the peripheral surface of the guide column 104 A second flange 105 extending outwardly and integrally formed, a gate-type pulling attachment column 106 extending in the sliding direction of the slider 100 on the upper surface of the second flange 105, and an annular portion 107a at one end And a pull handle 107 rotatably supported by the pull handle attachment column 106.

  The lower blade 101 is gradually expanded from the edge of the shoulder opening along substantially the half of the shoulder post side of the guide column 104, and then gradually reduced along the rear half of the guide column 104. The width from the end beyond the rear opening side edge to the rear opening edge is the same. First flanges 102 and 103 are erected along the sliding direction of the slider 100 on the left and right side edges of the lower wing plate 101 having such a shape. The first flanges 102 and 103 have mirror-symmetric shapes, and are composed of members having an L-shaped cross section including upper plate portions 102a and 103a and side wall portions 102b and 103b. The portions 102b and 103b are parallel regions 102b and 103b. The left and right side wall portions 102b and 103b lack a region corresponding to the shoulder side end of the upper plate portions 102a and 103a.

  Further, in this embodiment, a land portion 101 a having a wedge-shaped flat surface protruding from the rear half of the guide pillar 104 toward the rear mouth is formed on the upper surface of the lower wing plate 101. The second flange 105 has a flat plate shape as a whole, a rectangular region 105a formed along the shoulder edge and the left and right edges of the guide post 104, and the guide post 104 following the rectangular region 105a. A wedge-shaped region 105b integrally extending from the rear opening side edge toward the rear opening with a sharp tip.

  The peripheral region of the land portion 101a formed on the upper surface of the lower blade 101, the guide pillar 104, the first flanges 102 and 103, and the second flange of the slider 100 according to the present embodiment having such a configuration. A Y-shaped element guide passage GP is formed between the two and 105. According to the illustrated example, the upper surfaces of the pair of left and right first flanges 102 and 103 and the upper surface of the second flange 105 are in the same plane. On the other hand, the lower surfaces of the upper plate portions 102a and 103a of the first flanges 102 and 103 and the lower surface of the second flange 105 are not on the same plane, and the lower surfaces of the upper plate portions 102a and 103a of the first flanges 102 and 103 are not on the same plane. Is above the lower surface of the second flange 105. In other words, the thicknesses of the upper plate portions 102 a and 103 a of the first flanges 102 and 103 are formed thinner than the thickness of the second flange 105. Further, a gap D through which a fastener tape (not shown) can be inserted is provided between the inner side surface of each upper plate portion 102a of the pair of left and right first flanges 102 and 103 and the peripheral side surface of the second flange 105. .

  The hidden slide fastener slider 100 of this embodiment having such a basic configuration further includes the most characteristic configuration of the present invention. That is, the peripheral portion of the second flange 105 has a different structure from the conventional one. This will be specifically described with reference to FIGS. FIG. 4 is a perspective view of the second flange 105 as viewed obliquely from above when the handle attachment column 106 is excluded. 5, 6 and 7 are cross-sectional views taken along lines V-V, VI-VI and VII-VII in FIG. 4, respectively.

  The overall shape of the second flange 105 will be briefly described with reference to FIG. 4. As described above, the second flange 105 is viewed in plan view, and the upper surface portion of the guide pillar 104 is the rectangular area 105a and the rectangular area 105a from the rear opening side. It consists of a board | plate material which has the wedge-shaped area | region 105b extended in this. As shown in FIG. 4, a taper surface 105c having a taper angle changed in five stages from the shoulder opening end to the rear opening side end of the guide pillar 104 is formed on the peripheral side surface. However, the shape of the tapered surface 105c and the taper angle α in the present embodiment described below are not limited to this example, and can be variously changed depending on the specifications of the hidden slide fastener. The tapered surface 105c in the present invention has an upper end ridge line portion Eg at a position lower than the upper surface of the second flange 105, and all are inclined downward toward the circumferential surface of the guide column 104 and the land portion 101a.

  According to the figure, the height H1 between the upper edge ridge line portion Eg of the tapered surface 105c and the upper surface of the lower wing plate 101 extends from the shoulder opening end of the guide column 104 to a portion less than half of the guide column 104. Is the first tapered surface 105c-1 having the highest thickness and the thinnest flange T1. The second taper angle α2 on the rear mouth end side of the second flange 105 following the first taper surface 105c-1 is gradually raised more than the first taper angle α1, and further continues on the third taper on the rear mouth end side. The angle α3 (not shown) is gradually raised from the second taper angle α2, and this is repeated to become a fifth taper angle α5 (not shown) at the tip of the upper wedge region 105b. The fifth taper angle α5 has almost no inclination and is close to 0 °. At the same time, the thicknesses T1 to T5 (T3 and T5 are not shown) of the tapered surface 105c and the second flange 105 are also sequentially increased in accordance with the change in the taper angle α. However, in this embodiment, the fourth and fifth thicknesses T4 and T5 of the second flange 105 are the same. Accordingly, the heights H1 to H5 (H3 and H5 are not shown) between the upper edge ridge line portion Eg of the tapered surface 105c and the upper surface of the lower blade 101 are H1> H2> H3> H4 (= H5). It is getting lower in relation.

  Here, in the present embodiment, the circumference of the second flange 105 on the shoulder end side with respect to the straight line L (FIGS. 1 and 4) connecting the end surfaces on the shoulder openings of the upper plate portions 102a, 103a of the left and right first flanges 102, 103. As shown in FIGS. 4 to 6, the surface has a taper angle α toward the first to fourth taper surfaces 105 c-1 to 105 c-4, and the first to fourth taper angles α <b> 1 to α as well as the thickness H. It is large with α4. However, it may be sufficient to form the tapered surface 105c on the peripheral surface of the second flange 105 closer to the shoulder end than the straight line L (FIGS. 1 and 4), as will be described later.

  The second flange 105 of the present embodiment will be described in more detail. The peripheral surface of the second flange 105 is the thinnest and substantially the same thickness T1 from the shoulder opening side end to the half of the rectangular plate region 105a. Thereafter, the wall thickness gradually increases from T2 to T3 to the vicinity of the rear opening side end portion of the guide pillar 104, and at the same time, the downwardly inclined taper angles α1 to α3 formed up to the lower surface of the second flange 105 are also increased stepwise. is doing. As can also be understood from FIGS. 5 to 7, the upper edge line portion of the tapered surfaces 105 c-1 to 105 c-3 on the shoulder end side of the second flange 105 from the element guide surface GS of the lower blade 101. It means that the heights H1 to H3 to Eg are higher than the heights H4 and H5 between the vicinity of the rear opening side end of the guide pillar 104 and the upper surface of the lower blade 101 from the wedge-shaped region 105b. . In the present embodiment, the thickness T1 of the end portion on the shoulder opening side of the second flange 105 is reduced, and at the same time, the taper angle α1 is made smaller than the other taper angles α2 and α3 to form the tapered surface 105c. The taper angle α1 may be excluded. That is, the taper angle α1 may be 0 °.

  By forming the peripheral surface shape of the second flange 105 as described above, even when a particularly strong lateral pulling force is applied to the fastener tape during the slider operation for closing the hidden slide fastener, as in the past, The element E is not caught in the gap D between the upper plate portions 102a, 103a of the first flanges 102, 103 and the second flange 105, and the slider 100 can be smoothly slid. This will be described in detail with reference to FIGS.

  FIG. 9 is a cross-sectional view of the second flange 105 as viewed from the element guide surface of the lower blade 101. FIG. 10 precedes the meshing element E1 in front of the first flange 102 of the slider 100 and enters the element guide passage GP. It is explanatory drawing which shows the change of the standing posture of the introduced element E2. As can be understood from these drawings, the left and right fastener stringers FS on the front side of the shoulder side of the slider 100 are in a state of being largely opened by a strong lateral pulling force against the fastener tape, and at this time, the meshing element E moves the meshing head EH upward. It stands up in a posture close to a right angle with respect to the tape surface of the fastener tape (toward the front side in FIG. 9).

  By the sliding operation in the closing direction of the slider 100 (upward in FIG. 9), the continuous elements E are successively placed on the element guide surface GS of the lower blade 101 of the slider 100. At this time, a strong lateral pulling force is still applied to the element E1 mounted on the element guide surface GS. However, the element E2 previously introduced into the element guide passage GP of the slider 100 is the first and second flanges 102. , 103; 105 forces the tilting posture, and the fastener tape also exerts a force against the lateral pulling force, so that it tends to tilt more greatly than the element E away from the shoulder of the slider 100. Here, when the thickness of the second flange is the same from the shoulder side to the rear opening side as in the conventional slider, the height from the element guide surface of the lower wing plate to the lower surface of the second flange is In the tilting posture of the element E1 that is low and tends to tilt, the meshing head EH and the second flange interfere with each other, and the meshing head EH is not guided by the lower surface of the second flange, and the first flange and the second flange are not guided. It enters the gap between the two flanges and gets caught.

  In that respect, in the slider 100 according to the present embodiment, since the lower surface of the end portion on the shoulder opening side of the second flange 105 is cut and formed thin, the meshing head EH of the element E1 with a slight inclination is obtained. As the slider 100 slides, it is guided to the lower surface of the second flange and is smoothly introduced into the element guide passage GP. FIG. 11 shows a cross-sectional view passing through the shoulder-side end surface of the upper plate portion of the first flange at the moment when it is introduced into the element guide passage GP. As shown in the drawing, at least the tapered surface 105c having the taper angles α2 and α3 having the above-described relationship is provided on the lower surface of the surface of the wedge-shaped region 105b from the region facing the first flanges 102 and 103 of the second flange 105. Are stepwise formed, the element E introduced into the element guide passage GP can be reliably transferred to the required tilting posture necessary for meshing while being smoothly guided to the tapered surface 105c. In particular, it is preferably guided to the lower surface of the wedge-shaped region 105b of the second flange 105. In FIG. 11, the code | symbol T shows a fastener tape.

  In this embodiment, as shown in FIG. 3 and FIG. 8, the lower surface of the opposite side edge portion is a stepped portion in the parallel region PE of the upper plate portions 102a, 103a of the first flanges 102, 103. Thin-walled portions 102d and 103d cut out linearly through 102c and 103c are formed. As shown in FIG. 8, the thin-walled portions 102 d and 103 d are arranged so that the upper plate portions 102 a and 103 a of the first flanges 102 and 103 extend inward and outward along the extension lines of the left and right side edges of the rectangular region 105 a of the second flange 105. This corresponds to the inner area when the area is divided into two. The thin portions 102d and 103d are for avoiding interference with an insertion die (not shown) at the time of forming the slider necessary for forming the tapered surface 105c of the peripheral surface of the second flange 105.

  FIG. 12 is a perspective view of the hidden slide fastener according to the second embodiment of the present invention as seen from an obliquely upper side on the shoulder side, with a part cut away. In this embodiment, the shoulder mouth side end surface of the second flange 105 is formed flush with the same end surface of the guide column 104, and the tapered surface 105c having the same taper angle α along the peripheral surface of the second flange 105 excluding the end surface. Is different from the first embodiment in that it is formed continuously. Other configurations are not substantially different from those of the first embodiment. For this reason, in this embodiment, members that are not substantially different from those of the first embodiment are denoted by the same reference numerals. According to the second embodiment, the same effect as that of the first embodiment can be expected. In this embodiment, the tapered surface 105c may be stopped until the straight line L, and the tapered surface 105c may not be formed up to the leading end of the subsequent wedge-shaped region 105b.

  FIG. 13 is a perspective view of the hidden slide fastener according to the third embodiment of the present invention as seen from an obliquely upper side on the shoulder opening side. In this embodiment, the thickness of the second flange 105 from the shoulder opening side end surface to the position of the straight line L connecting the guide column side end surfaces of the upper plate portions 102a and 103a is gradually increased, and the thickness of the wedge-shaped region 105b is continuously increased with this thickness. The wall thickness up to the tip is thicker than the wall thickness on the shoulder opening side. Further, a taper angle α1 is gradually increased on the side surface of the thin portion to form a continuous taper surface 105c having a taper angle α3, and the taper having the taper angle α3 is continuous from the thin portion to the tip of the wedge-shaped region 105b. A surface 105c is formed. Even in this embodiment, the second flange 105 is formed on a tapered surface with small taper angles α1 to α3 from the straight line L to the end surface on the guide column side, and the element guide surface GS of the lower blade 101 of the first flange 105 is formed. Since the height H from the lower end on the shoulder side end face side is made higher than the other areas, the same effect as the first embodiment can be expected.

It is the perspective view which looked at the slider for the hidden slide fastener which concerns on 1st Example of this invention from the diagonal upper part by the side of a shoulder opening. It is the fragmentary perspective view which cut off a part of the slider and was seen from the slanting lower part on the shoulder side. It is the front view which looked at the principal part of the slider from the back mouth side. It is the perspective view seen from the shoulder opening side which shows typically the external appearance shape of the 2nd flange when the handle attachment pillar of the slider is excised. It is sectional drawing of the arrow direction along the VV line of FIG. It is sectional drawing of the arrow direction along the VI-VI line of FIG. It is sectional drawing of the arrow direction along the VII-VII line of FIG. It is the horizontal sectional view seen from the element guide surface of the lower wing board which expands and shows a part of half part of the slider. It is behavior explanatory drawing of the meshing element which looked at the slider from the element guide surface of the lower blade. It is behavior | movement explanatory drawing of a meshing element when it sees from the shoulder opening side which expands and shows a part of half part of the slider. It is a cross-sectional view which shows the state of the half part of a slide fastener when introduced in the element channel | path of the slider. It is the fragmentary perspective view which looked at the principal part of the slider for hidden slide fasteners concerning 2nd Example of this invention from the diagonal upper part by the side of a shoulder opening. It is the fragmentary perspective view which looked at the principal part of the slider for hidden slide fasteners concerning 3rd Example of this invention from the diagonal upper side by the side of a shoulder.

Explanation of symbols

100 Slider 101 Lower wing plate 101a Land portion 102, 103 Left and right first flanges 102a, 103a Upper plate portion 102b, 103b Side wall portion 102c, 103c Stepped portion 102d, 103d Thin portion 104 Guide column 105 Second flange 105a Rectangular region 105b Wedge shape Region 105c Tapered surface
105c-1 to 105c-5 First to fifth tapered surfaces 106 Pulling attachment column 107 Pulling handle 107a Annular portion T Fastener tape FS Fastener stringer E Engagement element EH Engagement head D Gap L Straight line α1 connecting the front end surfaces of the left and right upper plate portions ˜α5 First to fifth taper angles T1 to T5 Thickness H1 to H5 Height Eg Upper end ridge line portion GP of taper surface Element passage GS Element guide surface PE Parallel region

Claims (6)

Each engagement element (E) of a pair of fastener stringers (FS) in which opposing side edge portions are bent and fixed in a U shape, and a number of engagement elements are attached along the outer surface of the bent edge of the same side edge portion. Hidden slide fastener slider (100)
The slider (100) includes a lower wing plate (101) having a pair of first flanges (102, 103) each having an inverted L-shaped cross section standing along left and right edges perpendicular to the sliding direction of the slider (100). ) And a guide column (104) erected at the center of one end in the sliding direction of the lower blade (101) and the upper plate portion (102a, 103a) of the pair of first flanges (102,103) A rectangular region (105a) integrally formed on the upper surface of the guide post (104) and a wedge plate region (105b) extending in the sliding direction from the rectangular region (105a), A second flange (105) projecting outward along the outer periphery of the guide post (104),
At least a guide column (at least a portion of the peripheral surface of the second flange (105)) that intersects with a straight line L passing through the guide column side end surfaces of the left and right upper plate portions (102a, 103a) of the left and right first flanges (102, 103). 104) A tapered surface (105c) that extends upward from the lower end is formed in the outer region on the side,
The upper edge portion (Eg) of the tapered surface (105c) is lower than the upper surface of the upper plate portion (102a, 103a) of the first flange (102, 103), and the upper surface of the lower wing plate (101) and the upper plate portion. (102a, 103a) is set higher than the height (H) between the lower surface of
Hidden slide fastener slider characterized by that. An upper end ridge line portion (Eg) of the tapered surface (105c) is formed between the upper end ridge line portion (Eg) of the second flange portion on the wedge plate region (105b) side of the straight line L and the upper surface of the lower blade plate (101). The height (H5) between is the smallest,
The upper end ridge line portion (Eg) of the tapered surface (105c) from the end surface of the straight line L to the opposite side of the wedge plate region (105b) is the height (H5 to H5 to the upper surface of the lower blade plate (101)). The slider for a hidden slide fastener according to claim 1, wherein H1) is set so as to gradually increase.   The tapered surface (105c) has a taper angle (α1 to α5) that changes in a plurality of steps in the circumferential direction of the second flange (105), and the taper angle in the vicinity of the straight line L of the second flange (105). The slider for a hidden slide fastener according to claim 1 or 2, wherein (α1) is the largest, and the taper angle (α3, α2, α1) is set to be gradually smaller from the straight line L to the end on the guide column side.   The upper surface of the first flange (102, 103) and the upper surface of the second flange (105) are coplanar, and at least the lower surface of the second flange (105) closer to the wedge plate region (105b) than the straight line L is The slider for a hidden slide fastener according to claim 1, wherein the slider is arranged below the lower surface of the first flange (102, 103).   4. The slider for a hidden slide fastener according to claim 3, wherein the taper angles ([alpha] 1 to [alpha] 5) of the plurality of steps are sequentially changed in a range of 0 [deg.] To 90 [deg.].   A Y-shaped tape guide passage (GP) is formed between the upper plate portion (102a, 103a) of the first flange (102, 103) and the second flange (105), and the second flange (105) The lower surface of the inner portion of the first flange (102, 103) divided into the inner and outer portions by a long side extension line of the rectangular region (105a) is formed thinner than the lower surface of the outer portion through a step. The slider for the hidden slide fastener described.

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