JP5735002B2 - Hidden slide fastener - Google Patents

Description

  The present invention relates to a hidden slide fastener, and more particularly to a hidden slide fastener used for electromagnetic shielding products.

  With the spread of the information technology industry in recent years, there is an increasing need to protect electronic devices from electromagnetic interference. For this purpose, electromagnetic wave shielding products such as electromagnetic wave shielding sheets and electromagnetic wave shielding tubes that can block electromagnetic waves are widely used, and joints that exist in the product and operations of opening and closing parts can be performed with slide fasteners. is there.

  As a technology related to a slide fastener capable of blocking electromagnetic waves, a so-called electromagnetic wave shield slide fastener, there is WO2009 / 093678 (Patent Document 1). Patent Document 1 states that when electromagnetic shielding materials are connected to each other with a slide fastener, the reliability of electromagnetic shielding performance at the connecting portion is insufficient, and a hidden slide fastener for improving the electromagnetic shielding performance of the connecting portion. Is disclosed. With the hidden slide fastener, when the slide fastener is closed, the main body of the slider is not exposed to the outside. In this document, it is possible to prevent deterioration of the electromagnetic shielding performance due to the shape of the fastener element and the like by directly pressing the middle part on one side of the one and the other fastener tape and sandwiching without interposing the fastener element. Have been described.

WO2009 / 093678

  Patent Document 1 relates to a hidden slide fastener for an electromagnetic wave shield product, and describes electromagnetic wave shield blocking performance between the elements engaged with the element after closing the fastener. Regarding electromagnetic wave countermeasures against the gap between the fastener tape formed on the shoulder side of the slider and the slider. Is not described at all.

  Therefore, the present invention aims to provide a hidden slide fastener having a property of blocking electromagnetic waves, and having a countermeasure against electromagnetic waves with respect to a gap between the fastener tape formed on the shoulder side of the slider and the slider. One.

  In a slide fastener in which two sliders are attached to the fastener chain so that the shoulder opening sides face each other, a so-called head-matching type slide fastener, the fasteners are closed when the shoulder opening side ends of the two sliders are in contact with each other. The conventional head-to-head slider does not consider application to electromagnetic wave shielding products. When two sliders are in contact with each other, a gap is created between the shoulder-edge ends, and electromagnetic waves leak. Found a problem. And since electromagnetic waves easily pass through linear gaps, even a slight gap can cause the performance of electromagnetic shielding products to deteriorate, and eliminating these gaps can improve the reliability of electromagnetic shielding products. I found that it contributed. Furthermore, by aligning the same shape of the slider, the number of parts can be reduced and inventory management becomes easy. This invention is completed based on the above knowledge, and is specified by the following.

  In one aspect, the present invention provides a pair of fastener stringers having an electromagnetic wave shielding characteristic, a fastener tape having a bent portion on one side edge, and a fastener element attached along the bent portion, and the pair of fastener strings. A hidden slide fastener that is slidably attached to a fastener stringer and includes a pair of sliders for engaging and disengaging each fastener element, each of the pair of sliders having electromagnetic shielding characteristics, and a lower wing plate Left and right side walls erected along the left and right side edges of the lower wing plate, left and right first flanges extending in directions approaching each other from the upper ends of the left and right side walls, and the lower wing A guide column disposed between the left and right first flanges of the plate, a second flange provided on the guide column and extending toward at least the rear opening, and the lower wing And an element guide passage for guiding the fastener element surrounded by the left and right side walls and the first flange, and a portion of the fastener tape is located outside the element guide passage between the first flange and the second flange. A pair of sliders attached to a fastener stringer so that the shoulder sides face each other, and the front end surface of the lower blade plate of one slider is the lower blade plate of the other slider It is the hidden slide fastener currently formed in the shape which can be closely_contact | adhered to the front-end surface.

  In one embodiment of the hidden slide fastener according to the present invention, the front end surface of the lower wing plate of one slider can be in close contact with the front end surface of the lower wing plate of the other slider between the left and right first flanges.

  In another embodiment of the hidden slide fastener according to the present invention, the front end surface of the lower wing plate of one slider has the same shape as the front end surface of the lower wing plate of the other slider, Are offset.

  In yet another embodiment of the hidden slide fastener according to the present invention, the front end surface of the lower wing plate of one slider overlaps in the vertical direction when it is in close contact with the front end surface of the lower wing plate of the other slider. Thus, it has an uneven shape.

  In yet another embodiment of the hidden slide fastener according to the present invention, the front end surface of the lower wing plate of each slider is a locking plate protruding forward over either the left half or the right half. And at least a pair of receiving portions that are recessed rearward over the other of the left half and the right half and match the shape of the locking plate.

  In still another embodiment of the hidden slide fastener according to the present invention, the locking plate of each slider is thinner than the lower wing plate, and the upper surface of the locking plate is lower than the upper surface of the lower wing plate. The lower surface of the locking plate is higher than the lower surface of the lower wing plate, and the receiving portion has a groove shape that matches the shape of the locking plate.

  In still another embodiment of the hidden slide fastener according to the present invention, the front end surface of the lower wing plate of each slider includes a base surface that is on the same plane as the front end portions of the left and right side walls. The locking plate and the receiving portion are formed from the surface.

  In yet another embodiment of the hidden slide fastener according to the present invention, the front end portions of the left and right side walls of one slider are formed in a shape that can be in close contact with the respective front end portions of the corresponding side walls of the other slider. ing.

  In yet another embodiment of the hidden slide fastener according to the present invention, the front end surface of the lower wing plate of each slider has a base surface that defines a boundary between the locking plate and the receiving portion. The surface protrudes to the front side of the front end portion of the side wall, the front end surface of the first flange, and the front end surface of the second flange, which is located at the most forward position.

  In still another embodiment of the hidden slide fastener according to the present invention, the slider has the lower wing plate, the left and right side walls, the slider body having the left and right first flanges, and the second flange. The guide column is provided on either the slider body or the slider upper plate. The slider upper plate is engaged with the slider body.

  By using the slider according to the present invention for the head-to-head type fastener, the front end surfaces of the lower blades of the two sliders are in close contact with each other when the fastener is closed, and therefore the path of electromagnetic waves can be blocked. Therefore, electromagnetic waves can be prevented from leaking from the gap between the sliders.

  According to the actual form in which the left and right shapes of the front end surface of the lower wing plate are offset, a head-to-head slide fastener can be manufactured using the same slider, so the number of parts can be reduced. And inventory management becomes easy.

  In particular, according to the embodiment having an uneven shape that overlaps in the vertical direction when the front end surface of the lower wing plate is in close contact with the front end surface of the lower wing plate of the counterpart slider, when the fastener is closed, Even if the front end surface of the slider does not come into close contact with each other and a gap is generated between them, the overlapping portion can fill the gap and block the electromagnetic wave path.

  Furthermore, the front end surface of the lower wing plate has a pair of locking plates and a receiving portion, the locking plate is thinner than the lower wing plate, and the upper surface of the locking plate is lower than the upper surface of the lower wing plate. According to the embodiment, the lower surface of the locking plate is higher than the lower surface of the lower wing plate, and the receiving portion has a groove shape that matches the shape of the locking plate. When the front end surfaces of the lower blades are in close contact with each other, the resistance to twisting about the front-rear direction and the left-right direction increases, so there is a gap between the sliders even when an action such as twisting is applied to the electromagnetic shielding product. Is less likely to occur and the effect of maintaining the electromagnetic wave shielding effect can be obtained.

It is a perspective view of the slider for electromagnetic wave shield fasteners concerning a 1st embodiment of the present invention. It is a disassembled perspective view of the slider for electromagnetic wave shield fasteners concerning a 1st embodiment of the present invention. It is sectional drawing when the slider for electromagnetic wave shield fasteners concerning 1st Embodiment of this invention is cut | disconnected by the left-right centerline. In the head-to-head type hidden slide fastener provided with the slider for electromagnetic wave shield fastener according to the first embodiment of the present invention, it is a view of the state where the fastener is partially opened as viewed from above. In the head-to-head type hidden slide fastener provided with the slider for electromagnetic wave shield fastener according to the first embodiment of the present invention, FIG. In the head-to-head type hidden slide fastener provided with the slider for electromagnetic wave shield fastener according to the first embodiment of the present invention, FIG. FIG. 7 is a cross-sectional view taken along line A-A ′ of FIG. 6. FIG. 7 is a sectional view taken along line B-B ′ of FIG. 6. It is a perspective view of the slider for electromagnetic wave shield fasteners concerning a 2nd embodiment of the present invention. It is a perspective view of the slider for electromagnetic wave shield fasteners concerning a 3rd embodiment of the present invention. It is a perspective view of the slider for electromagnetic wave shield fasteners concerning a 4th embodiment of the present invention. It is a figure which shows a mode that two sliders which face each other closely contact each other about the slider for electromagnetic wave shield fasteners concerning 4th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  In the hidden slide fastener according to the present invention, a fastener tape having electromagnetic wave shielding characteristics is used. Materials having the property of blocking electromagnetic waves are known and are not particularly limited, but representative examples thereof include metals such as gold, silver, copper, aluminum, tungsten, nickel, zinc, iron or alloys containing one or more of these. Conductive materials to be used. The conductive material is used in the form of a sheet by weaving / knitting it into a linear shape, or by sticking it to a fastener tape in the form of a thin foil. It is used by weaving / knitting a fiber obtained by plating a polyester fiber or the like or brazing a wire of a conductive material. When a metal is used as the conductive material, it can be provided, for example, in the form of a metal foil, or can be provided in the form of a sheet by weaving or knitting metal fibers or metal wires. It can also provide as a laminated body which bonded other materials, such as resin, to these. It can also be obtained by plating resin or glass fibers such as polyethylene, polypropylene, polyester, aramid, acrylic, etc. with metal as described above instead of metal fibers or metal wires, or winding wires of conductive materials. Conductive fibers can also be used.

  The electromagnetic wave shield fastener according to the present invention can be attached to a connection part or an opening / closing part of various electromagnetic wave shield products. As an electromagnetic wave shielding product, it is used to block an electromagnetic wave-sensitive article from electromagnetic waves, or to prevent electromagnetic waves generated from electronic equipment from leaking to the outside. , An electromagnetic shielding sheet, an electromagnetic shielding room, an electromagnetic shielding tube, and the like.

  The present invention relates to a hidden slide fastener. The hidden slide fastener itself is known, and as described in WO2009 / 093678 (Patent Document 1), one side edge of the fastener tape is bent into a substantially U shape to form a bent portion, and along the bent portion. Opening and closing of the fastener is achieved by engaging and disengaging the fastener elements of the pair of fastener stringers to which the fastener elements are attached by sliding the slider. In this embodiment, which will be described later, the fastener element attached to the fastener tape is described as a slide fastener chain in which a plurality of fastener elements are formed by injecting synthetic resin along the side edge of the fastener tape. It is not specifically limited to. The fastener element may be attached to the fastener tape by a fastener chain in which, for example, a linear element formed in a coil shape or a zigzag shape is sewn along an element attachment edge.

The structure of the fastener stringer applicable in the present invention is not particularly limited, but the fastener stringer for hidden slide fasteners disclosed in International Application PCT / JP2009 / 059586 can be suitably used. Specifically, the fastener stringer has a pair of left and right fastener tapes each having a tape main part and an element attachment part arranged on one side edge of the tape main part, and the main constituent yarns constituting the fastener tape Conductive yarn is used for the strip, and the fastener tape has conductivity capable of electromagnetic wave shielding. The pair of fastener tapes has conductive tape contact portions that are in close contact with the mating fastener tape when the element rows are engaged with each other, and the element rows in the engaged state are in close contact with the tape contact portions. The tape is covered with a tape contact portion disposed on at least one of the fastener tapes.
Note that the contents of PCT / JP2009 / 059586 are incorporated into the present invention by reference with this description.

The slider used in the slide fastener according to the present invention has conductivity that can shield electromagnetic waves.
Such a slider can be manufactured by die-casting or injection-molding using a conductive metal or synthetic resin. Examples of the metal having conductivity include gold, silver, the same, aluminum, tungsten, nickel, zinc, iron or a metal containing one or more of these as in the case of the fastener tape. Examples include triacetylene, polypyrrole, polythiophene or polyanine. It is also possible to form the slider using another material such as a resin and then plate with the above metal. As will be described later, the slider having a complicated shape may be assembled from a plurality of parts.

  Similarly, a material having electromagnetic wave shielding characteristics may be used for the fastener element. However, in the hidden slide fastener, one side edge of the fastener tape is bent, and when the fastener is closed, the bent portions of the pair of fastener tapes are directly pressed against each other without a fastener element. As long as the tape has electromagnetic wave shielding properties, there is almost no problem even if the fastener element does not have electromagnetic wave shielding properties.

  In the slider of this specification, the sliding direction of the slider is the front-rear direction, the direction in which the slider slides to engage the element rows is the front, and the direction in which the slider slides to separate the element rows is the rear. . The front end of the slider is the slider head. The direction perpendicular to the upper and lower blades is the vertical direction, the direction from the lower blade to the upper blade (first flange) is upward, and the direction from the upper blade to the lower blade is downward. The direction parallel to the upper and lower blades and perpendicular to the slider sliding direction is the left-right direction, and when the slider is slid forward as viewed from above, the right side of the slider traveling direction is the right direction, and the left side of the traveling direction is Define as left direction. Further, in the slider, the front opening from which the fastener element comes out separately is called a shoulder opening, and the rear opening on the opposite side from which the fastener element is engaged is called a rear opening.

<First Embodiment>
The electromagnetic shield fastener slider (10) according to the first embodiment of the present invention will be described. FIG. 1 is a perspective view of a slider (10) according to the present embodiment. Referring to FIG. 1, the slider (10) according to the present embodiment has, as a basic structure, a lower wing plate (13) and left and right erected along the left and right side edges of the lower wing plate (13). Side walls (14a, 14b), left and right first flanges (15a, 15b) extending from the upper ends of the left and right side walls (14a, 14b) toward each other, and shoulder openings of the lower wing plate (13) A guide column (21) disposed between the left and right first flanges (15a, 15b) from the left and right central portion toward the rear opening, and provided on the upper surface of the guide column (21), and at least the left and right 1 flange (15a, 15b), the 2nd flange (22a) projected toward the said rear opening, and the cantilevered handle attachment part (23) for supporting a handle (25) are provided. In the present invention, the first flange is also expressed as an upper blade.

  In plan view formed by the lower wing plate (13), the left and right side walls (14a, 14b), the guide post (21), the first flange (15a, 15b), and the second flange (22a). The Y-shaped space becomes an element guide passage (17) through which the fastener element attached to the fastener stringer passes.

  A pair of fastener stringers with the engagement heads (45) of the fastener elements facing each other is inserted from the shoulder opening of the slider (10), and the slider (10) is moved forward to engage the left and right fastener elements. In the state (closed state), the slider (10) is pulled out from the rear opening. The folded portion of the fastener tape extends outward from the gap S between the first flange (15a, 15b) and the second flange (22a).

  The lower wing plate (13) has a substantially trapezoidal plate shape, and the width in the left-right direction is gradually reduced from the front end edge (13a) on the shoulder opening side to the position of about 3/4 of the full length, and then the rear wing plate (13) It is substantially the same up to the end edge (13b). The upper surface of the lower wing plate (13) is formed in parallel with the lower surfaces of the first flanges (15a, 15b). Thereby, the opposing fastener elements inserted into the element guide passage (17) of the slider (10) from the shoulder opening are smoothly engaged with each other as the slider (10) slides.

  As for the 1st flange (15a, 15b), the ridge part inside the upper surface is rounded off. In addition, the first flange (15a, 15b) has a curved portion (15d) formed by rounding the inner corner of the front end of the shoulder opening. As a result, the fastener element can be smoothly drawn into the element guide passage (17). This also contributes to reducing the sliding resistance of the slider (10). Further, a thickened portion (15e) is formed on the upper surface of the first flange (15a, 15b) on the shoulder opening side. As a result, the contact pressure acting on the fastener tape when contacting the thick part (15e) is low due to the large thickness part (15e) (that is, the contact area is large), The sliding resistance of the slider (10) is reduced and tearing of the fastener tape is prevented.

  The guide column (21) is formed in the shape of a substantially isosceles triangular column whose shoulder side is the bottom. On the guide column (21), left and right first flanges (15a, 15b) and a second flange (22a) having a substantially isosceles triangle shape extending toward the rear mouth and having a shoulder side at the bottom are provided. ing. The left and right side surfaces of the second flange (22a) and the inner side surfaces of the first flanges (15a, 15b) are substantially parallel to each other, and a substantially constant gap S is formed between them. Extend from S.

  The upper surface on the shoulder opening side of the second flange (22a) has a thicker portion (15e) that is thicker than the thick portion (15e) formed on the upper surface on the shoulder opening side of the first flange (15a, 15b). 22b) is formed. The thickness of the thick part (22b) is maintained up to the front end of the second flange (22a) on the shoulder opening side, and the end surface (27) on the shoulder opening side of the second flange (22a) goes upward from the guide column (21). In accordance with the above, a high inclined wall projecting forward is formed. As a result, even when the fastener element inserted from the shoulder is initially raised by a strong lateral pulling force, it can enter the element guide passage (17) while smoothly tilting by the inclined wall. The element guide passage (17) can be moved in a state substantially parallel to the lower blade (13).

  On the upper surface of the guide column (21), there is provided a gate-type handle attachment portion (23) having one end fixed in a cantilever shape and extending in the sliding direction. Although not shown in FIG. 1, a handle (25) having an annular portion at one end is prepared, and the handle can be rotatably attached to the handle attachment portion (23) through the annular portion. FIG. 3 shows a state in which the handle (25) represented by a dotted line is attached to the handle attachment portion (23). By caulking the tip of the handle attachment portion (23) in the direction of the arrow in FIG. 3, the handle (25) can be prevented from easily coming off the handle attachment portion (23).

  The slider (10) according to the present embodiment is composed of two parts except for the handle (25), and each part can be manufactured by die casting or injection molding using a mold. By using two parts, it is possible to produce even a complicated structure that cannot be produced by the restrictions imposed by the mold structure with a conventional slider that is integrally molded. For example, by using two parts, the degree of freedom of the shape of the second flange (22a) is increased, and the second flange (22a) having a large lateral protrusion can be obtained. Specifically, the distance from the left and right center lines of the slider (10) to the left and right outermost ends of the second flange (22a) is the distance between the left and right center lines of the slider (10) and the side walls (14a and 14b). The distance to the inner surface on the mouth side can be 0.8 times or more, preferably 1.0 times or more. For this reason, the fastener element can be guided by the second flange (22a) and pulled in with a certain relatively weak force, and the slider (10) can be smoothly moved even if a strong lateral pulling force is applied when the slide fastener is closed. A sliding operation can be performed.

  FIG. 2 is an exploded perspective view of the slider (10) according to the present embodiment. The slider (10) according to this embodiment includes a slider body (11) having a lower wing plate (13), left and right side walls (14a, 14b), and first left and right flanges (15a, 15b), and a second body. It has a flange (22a) and is composed of two parts: a slider upper plate (12) engaged with the slider body (11). In this embodiment, the guide column (21) and the handle attachment portion (23) are provided on the slider upper plate portion (12), which are the slider body (11) and the slider upper plate portion. It may be provided in any of (12).

  Referring to FIG. 2, the overhanging portion (16) is erected at the left and right central portions of the lower wing plate (13) near the shoulder opening, while the upper plate portion (12) is provided with a guide column (21). A groove portion (24) having a rectangular opening extending at the left and right center portions of the shoulder mouth side end surface and the shoulder mouth side end surface (27) of the second flange (22a), and having a shape matching the shape of the overhang portion (16) Is provided. Further, a pair of leg portions (26) project from the front end portions of the left and right side walls of the guide pillar (21) on the left and right of the opening of the groove portion (24) on the upper plate portion (12). ing. By fixing the projecting portion (16) and the groove portion (24) in an engaged state, the slider body portion (11) and the upper plate portion (12) are united. The method for engaging the two parts is not particularly limited as long as the two parts are not easily separated. In this embodiment, the slider body (11) and the upper plate (12) are engaged by the following method. Unite.

  The overhanging portion (16) is provided on the base along the shape of the base (16a) having a substantially T shape in plan view and extending in the left-right direction and the rear opening side, and along the shape of the base (16a). Standing part (16b) having a substantially T-shape in plan view that is narrower than (16a) and a substantially T-shape in standing on the standing part (16b) and having a width wider than that of the standing part (16b) The rib (16c). The end surface on the shoulder opening side of the rib (16c) is an overhanging inclined surface so that it becomes a surface with the end surface (27) on the shoulder opening side of the second flange (22a) after engagement with the upper plate portion (12). ing.

  On the other hand, the groove (24) has an internal structure that matches the shape of the overhanging portion (16) so that it can be engaged with the overhanging portion (16), and from the rear of the overhanging portion (16) to the front. By sliding the groove portion (24), the groove portion (24) and the overhang portion (16) are engaged. Thereafter, the overhanging portion (16) is fixed to the groove portion (24) by crimping the pair of leg portions (26) inward so that the opening of the groove portion (24) is sealed. FIG. 3 shows the engaged state of the projecting portion (16) and the groove portion (24).

  Returning to FIG. 1, the left and right shapes of the front end face (13 c) of the lower blade (13) are in a canceling relationship. Specifically, the front end surface (13c) has a base surface (13d) formed substantially flush with the front end portions (14c, 14d) of the left and right side walls. The base surface (13d) has a flat surface in which the left and right side walls are linearly connected along the left-right direction. The front end surface (13c) has a locking plate (31) projecting forward from the base surface (13d) on the left half with the horizontal center as a boundary, and a recess on the base surface (13d) on the right half on the opposite side. And a receiving portion (32) matching the shape of the locking plate (31). In other words, the base surface (13d) defines the boundary between the locking plate (31, 61a, 61b, 71) and the receiving portion (32, 62a, 62b, 72). Thus, when the heads of the two sliders (10) having the same shape are brought into contact with each other and the fastener is completely closed, the front end surfaces (13c) of the lower wing plate (13) of the slider (10) are aligned with each other. Closely closes the path of electromagnetic waves in the vertical direction.

  The locking plate (31) is thinner than the lower wing plate (13), the upper surface of the locking plate (31) is lower than the upper surface of the lower wing plate (13), and the lower surface of the locking plate (31) is It exists in a position higher than the lower surface of a lower blade (13). Further, the upper surface of the receiving portion (32) corresponding to this is lower than the upper surface of the lower wing plate (13), and the lower surface of the receiving portion (32) is formed at a position higher than the lower surface of the lower wing plate (13). It has a groove shape. As a result, when the front end surface (13c) of the lower wing plate (13) is in close contact with the front end surface of the lower wing plate of the counterpart slider, an overlap occurs in the vertical direction. For this reason, even when the slide fasteners are closed, the base surfaces (13d) of the front end surfaces (13c) of the two sliders do not come into close contact with each other, and a slight gap is formed between the two. The passage can be blocked. Further, when the front end surfaces (13c) of the lower wing plates (13) of the two sliders are in close contact with each other, the resistance to twisting about the front-rear direction and the left-right direction is increased. Even when such an action is applied, a gap is less likely to be generated between the sliders, and the electromagnetic wave shielding effect is also unlikely to decrease. Further, since the upper surfaces of the locking plate (31) and the receiving portion (32) are formed lower than the upper surface of the lower wing plate (13), the locking plate (31) and the receiving portion (32) are the element guide paths. Since it will be difficult to contact the element that is inserted through the slider, it will not interfere with the sliding of the slider.

  The locking plate (31) has a substantially trapezoidal shape in which the left and right widths gradually narrow toward the front. As a result, even when the sliders (10) facing each other are approached and the fastener is closed, even if the positions of the two are slightly shifted vertically and horizontally, the engagement of the locking plate (31) and the receiving portion (32) As the match progresses, it is naturally corrected to the correct position and a close state is obtained. In order to achieve a smooth fitting operation, the locking plate (31) is preferably chamfered.

  FIG. 4 is a top view of the head-to-head type electromagnetic wave shield fastener (40) provided with the slider (10) according to the present embodiment as seen from above. The fastener tape (42) has a bent portion (43) on one side edge, and a plurality of fastener elements (41) are attached along the bent portion (43). A state in which a row of fastener elements (41) is attached to a fastener tape (42) is called a fastener stringer. The fastener tape (42) used in this embodiment includes a conductive material in the fastener tape, and the fastener stringer used in this example is the same as that of Example 1 of PCT / JP2009 / 059586. It can be as described. The edge of the fastener tape (42) is hidden behind and is not visible. In the figure, the part represented by the two-dot chain line indicates that it is hidden below. In addition, the handle (25) is indicated by a dotted line.

  The slider (10) having the same shape is inserted between a pair of fastener stringers so that heads, that is, shoulders face each other. As the sliders (10) slide toward each other, the fastener elements (41) are engaged with each other, and when the heads of the two sliders (10) come into contact with each other, the fasteners are completely closed. It becomes a state. FIG. 5 is a view of the electromagnetic shield hidden slide fastener (40) provided with the slider (10) according to the present embodiment, as viewed from above, in which the fastener is completely closed, and FIG. It is the figure seen from. 7 is a cross-sectional view taken along line A-A ′ of FIG. 6, and FIG. 8 is a cross-sectional view taken along line B-B ′ of FIG. 6.

  Referring to FIGS. 5 and 6, it can be seen that when the fastener is completely closed, the row of fastener elements (41) is hidden below and cannot be seen from above. At this time, the bent portion of the fastener tape has a gap between one bent portion and the other bent portion due to a bulge portion (not shown) protruding from the engaging leg portion (44) of the element. The electromagnetic wave leakage from the part is blocked. 7 and 8, it can be seen that when the heads of the two sliders (10) are in contact with each other, the front end faces (13c) of the lower blade (13) are in close contact with each other. Referring to FIG. 8, it can be seen that the front end faces (13c) of the lower wing plate (13) overlap in the vertical direction. Further, as can be seen from FIG. 7, the front end portions (14c, 14d) of the left and right side walls (14a, 14b) are perpendicular to the front-rear direction, and the base surfaces of the front end surfaces (13c) of the two sliders (10). When (13d) are in contact with each other, the front end portions (14c, 14d) of the left and right side walls (14a, 14b) are also in contact with each other. Furthermore, as can be seen from FIG. 7, the foremost ends of the end surface (27) on the shoulder opening side of the second flange (22a) are also in close contact with each other. In this way, not only the lower wing plate (13) but also other portions of the slider head can be brought into close contact with each other, so that the electromagnetic wave shielding effect can be further improved.

  Here, the base surface (13d) of the slider according to the present embodiment is the inner side of the front end portion (14c, 14d) of the side wall, the front end surface of the first flange (15a, 15b), and the front end surface of the second flange (22a). It is preferable that the most projecting part and the part projecting forward are more forward than the part projecting forward. By adopting such a configuration, the front end surfaces (13c) of the lower wing plate (13) are preferably connected to each other regardless of the shapes of the front end portions (14c, 14d) of the side walls, and the front end surfaces of the first flange and the second flange. Can be intimate. In the present embodiment, the base surface (13d) of the slider is formed so that the front end portions (14c, 14d) of the side walls and the front end surfaces of the first flange and the second flange are all in the same position.

  The front end portions (14c, 14d) of the left and right side walls (14a, 14b), the front end surfaces of the first flanges (15a, 15b), and the front end surfaces of the second flanges (22a) are the front end surfaces of the lower wing plate (13). Similarly to (13c), the close state may be achieved by the uneven shape having a canceling relationship on the left and right.

  In addition, when the two sliders facing each other come into contact with each other head-to-head, the front end portions (14c, 14d) of the side wall, the first flange so as not to disturb the close contact between the front end surfaces (13c) of the lower blade (13). At least one of the front end face of (15a, 15b) and the front end face of the second flange (22a) can be formed in any shape that fits between the sliders. In this case, the base surface (13d) necessarily protrudes most forward among the front end portions (14c, 14d) of the side wall, the front end surface of the first flange (15a, 15b), and the front end surface of the second flange (22a). It is not necessary to protrude to the front side of the place where it is placed.

Second Embodiment
Next, an electromagnetic wave shield fastener slider (50) according to a second embodiment of the present invention will be described. FIG. 9 is a perspective view of the slider (50) according to the present embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and the structure and function are described, and thus the description thereof is omitted. The same applies to the following embodiments.

  The second embodiment differs from the first embodiment in the shape of the front end face (13c) of the lower blade (13). In the present embodiment, the front end surface (13c) of the lower blade (13) is a flat surface perpendicular to the front-rear direction. In this embodiment, the front end surface (13c) has no unevenness, that is, it consists only of the base surface (13d), but the front end surface (13c) of the lower wing plate (13) has a canceling relationship between the left and right shapes, When the heads of two sliders (50) having the same shape are brought into contact with each other and the fastener is completely closed, the front end surfaces (13c) of the lower blade (13) of the slider (50) are in close contact with each other. Can do.

  The front end portions (14c, 14d) of the left and right side walls (14a, 14b) are flush with the front end surface (13c) of the lower wing plate (13), and the heads of the two sliders (50) are in contact with each other. The front end portions (14c, 14d) of the left and right side walls (14a, 14b) can be in close contact with each other.

<Third Embodiment>
Next, an electromagnetic wave shield fastener slider (60) according to a third embodiment of the present invention will be described. FIG. 10 is a perspective view of the slider (60) according to the present embodiment. Also in the third embodiment, as in the first embodiment, the front end surface (13c) of the lower wing plate (13) has a canceling relationship between the left and right shapes, and the heads of two sliders (60) having the same shape Can be brought into close contact with each other when the fasteners are completely closed and the lower blade (13) of the slider (60) is in a closed state. However, the specific shape is different from that of the first embodiment and will be described below.

  In the present embodiment, the front end surface (13c) of the lower wing plate (13) has two steps of locking plates (61a, 61b) and receiving portions (62a, 62b). As a result, the front end surface (13c) of the lower wing plate (13) has two pairs of locking plates and receiving portions. Specifically, the upper half of the front end surface (13c) is provided with a locking plate (61a) projecting forward over the left half and recessed rearward over the right half. A receiving portion (62a) matching the shape of the stop plate (61a) is formed. The lower half of the front end surface (13c) has a locking plate (61b) projecting forward over the right half thereof, and is recessed rearward over the left half of the locking plate. A receiving portion (62b) matching the shape of (61b) is formed. The upper surface of the upper locking plate (61a) is flush with the upper surface of the lower blade (13), and the lower surface of the lower locking plate (61b) is flush with the lower surface of the lower blade (13). is there.

  Also in this embodiment, when the front end surface (13c) of the lower wing plate (13) is in close contact with the front end surface (13c) of the lower wing plate (13) of the counterpart slider, as in the first embodiment. Since the overlap occurs in the direction, even if the front end surfaces (13c) of the two sliders (60) do not come into close contact with each other when the fastener is closed, the overlap portion fills the gap. The path of electromagnetic waves can be blocked.

  The locking plates (61a, 61b) have a substantially trapezoidal shape in which the left and right widths gradually narrow toward the front, and the advantages thereof are as described in the first embodiment. The front end portions (14c, 14d) of the left and right side walls (14a, 14b) and the foremost end of the shoulder surface side end surface (27) of the second flange (22a) can be closely contacted as in the first embodiment. Since the description is also given in the first embodiment, it will be omitted.

<Fourth embodiment>
Next, an electromagnetic wave shield fastener slider (70) according to a fourth embodiment of the present invention will be described. FIG. 11 is a perspective view of the slider (70) according to the present embodiment. Also in the fourth embodiment, as in the first embodiment, the front end surface (13c) of the lower wing plate (13) has a canceling relationship between the left and right shapes, and the heads of two sliders (70) having the same shape Can be brought into close contact with each other when the fastener is completely closed and the lower wing plate (13) of the slider (70) is closed. However, the specific shape is different from that of the first embodiment and will be described below.

  In the present embodiment, the front end surface (13c) of the lower wing plate (13) is similar to the first embodiment in that it has a pair of locking plates (71) and receiving portions (72). In this embodiment, the upper surface of the locking plate (71) protruding forward over the left half is flush with the upper surface of the lower wing plate (13), and the lower surface of the locking plate (71) is the lower wing. It is in the same plane as the lower surface of the plate (13). A receiving portion (72) that matches the shape of the locking plate (71) is recessed rearward in the right half. FIG. 12 is a view of the slider (70) according to the present embodiment, as seen from below, in which the two sliders (70) facing each other are in close contact with each other. The left side is close front and the right side is close back.

  The locking plate (71) has a substantially trapezoidal shape in which the left and right widths gradually narrow toward the front, and the advantages thereof are as described in the first embodiment. The front end portions (14c, 14d) of the left and right side walls (14a, 14b) and the foremost end of the shoulder surface side end surface (27) of the second flange (22a) can be closely contacted as in the first embodiment. Since the description is also given in the first embodiment, it will be omitted.

As mentioned above, although this invention has been demonstrated based on embodiment, this invention is not limited to the said embodiment, A various change is possible. In any of the above-described embodiments, the front end surface (13c) of the lower wing plate (13) is related to the slider in which the left and right shapes are in a canceling relationship, but is not limited thereto. For example, in the second embodiment, The slider is provided with a locking plate projecting from the base surface (13d), and the other slider is provided with a receiving portion (32) that matches the shape of the locking plate (31). It is good also as a structure which shields.
In addition, although the present invention is a hidden slide fastener, the main purpose is not to use the slider so that it cannot be seen from the outside, but to block electromagnetic waves by attaching a pair of fastener tapes together. It is used as the main purpose. Therefore, it is not always necessary to dispose the slider of the present invention so that it cannot be seen from the outside. In that case, it is preferable to provide a handle attachment part on the lower surface of the lower wing plate (13) to attach the handle. In addition, about a pull attachment part, it is not limited to these, It can attach to arbitrary practical places.

10, 50, 60, 70 Electromagnetic shield fastener slider 11 Slider body portion 12 Upper plate portion 13 Lower wing plate 13a Front end edge 13b Rear end edge 13c Front end surface 13d Base surface 14a, 14b Side walls 14c, 14d Front end portions 15a, 15b First 1 flange (upper blade)
15d Curved portion 15e Thick portion 16 of the first flange 16 Overhang portion 16a Base 16b Standing portion 16c Rib 17 Element guide passage 21 Guide column 22a Second flange 22b Thick portion 23 of the second flange 23 Pull handle mounting portion 24 Groove portion 25 Pull handle 26 Leg Portion 27 End surface 31, 61 a, 61 b, 71 on the shoulder side of the second flange Locking plate 32, 62 a, 62 b, 72 Receiving portion 40 Electromagnetic wave shield fastener 41 Fastener element 42 Fastener tape 43 Bending portion 44 Engagement leg portion 45 Engagement head

Claims (9)

A pair of fastener stringers having an electromagnetic wave shielding property and having a fastener tape (42) having a bent portion (43) on one side edge and a fastener element (41) attached along the bent portion (43). When,
A hidden slide fastener that is slidably attached to the pair of fastener stringers and includes a pair of sliders (10, 50, 60, 70) for engaging and disengaging each fastener element (41),
Each of the pair of sliders (10, 50, 60, 70) has electromagnetic wave shielding characteristics,
The lower wing plate (13),
Left and right side walls (14a, 14b) erected along side edges in the left-right direction of the lower wing plate (13);
Left and right first flanges (15a, 15b) extending from the upper ends of the left and right side walls (14a, 14b) toward each other;
A guide post (21) disposed between the left and right first flanges (15a, 15b) of the lower wing plate (13);
A second flange (22a) provided on the guide post (21) and projecting at least toward the rear opening;
An element guide passage (17) for guiding the lower wing plate (13), the fastener element (41) surrounded by the left and right side walls (14a) and the first flange (15a, 15b);
Between the first flange (15a, 15b) and the second flange (22a), a gap S in which a part of the fastener tape (42) can extend outward from the element guide passage (17);
With
The pair of sliders are attached to the fastener stringer so that the shoulder sides face each other,
The front end surface (13c) of the lower wing plate (13) of one slider is formed in a shape that can be in close contact with the front end surface of the lower wing plate of the other slider between the left and right first flanges (15a, 15b). Furthermore, the front end portions (14c, 14d) of the left and right side walls (14a, 14b) of one slider are concealed so as to be in close contact with the respective front end portions of the corresponding side walls of the other slider . Slide fastener. Lower blade of one of the slider front end surface of the (13) (13c) has a front end face of the same shape of the lower blade of the other slider, according to claim 1, left and right shape are in offset relationship Hidden slide fastener. Lower blade of one of the slider front end surface of the (13) (13c), as overlap vertically when in close contact with the front end surface of the lower blade of the other slider occurs claim 1 or an uneven shape concealed slide fastener according to 2. The front end surface (13c) of the lower wing plate (13) of each slider is provided with a locking plate (31, 61a, 61b, 71) projecting forward over either the left half or the right half, Claims having at least a pair of receiving portions (32, 62a, 62b, 72) which are recessed rearward over the other half and right half and match the shape of the locking plates (31, 61a, 61b, 71). Item 4. The hidden slide fastener according to any one of Items 1 to 3 . The locking plate (31, 61a, 61b, 71) of each slider is thinner than the lower wing plate (13), and the upper surface of the locking plate (31, 61a, 61b, 71) is the lower wing plate (13). The lower surface of the locking plate (31, 61a, 61b, 71) is higher than the lower surface of the lower wing plate (13), and the receiving portion (32, 62a, 62b, 72). The hidden slide fastener according to claim 4 , which has a groove shape matching the shape of the locking plate (31, 61 a, 61 b, 71). The front end surface (13c) of the lower wing plate (13) of each slider has a base surface (13d) on the same plane as the front end portions (14c, 14d) of the left and right side walls (14a, 14b), The hidden slide fastener according to claim 4 , wherein the locking plate (31, 61a, 61b, 71) and the receiving portion (32, 62a, 62b, 72) are formed from the base surface (13d). The front end surface (13c) of the lower wing plate (13) of each slider is a base surface that defines the boundary between the locking plate (31, 61a, 61b, 71) and the receiving portion (32, 62a, 62b, 72). 13d), and the base surface (13d) is within the front end portion (14c, 14d) of the side wall, the front end surface of the first flange (15a, 15b), and the front end surface of the second flange (22a). The hidden slide fastener according to claim 4 , wherein the hidden slide fastener projects to the front side with respect to the most projecting portion. The slider (10, 50, 60, 70) includes a slider body (11) having the lower blade (13), the left and right side walls (14a, 14b), and the left and right first flanges (15a, 15b). The slider upper plate part (12) having the second flange (22a) and being engaged with the slider body part (11), and the guide column (21) The hidden slide fastener according to any one of claims 1 to 7 , which is provided on either the slider body (11) or the slider upper plate (12). The end surface (27) on the shoulder opening side of the second flange (22a) forms an inclined wall projecting forward as it goes upward from the guide column (21). Hidden slide fastener.

Images