Abstract: A fastening device has a first fastening member with a plurality of teeth and a second fastening member with a plurality of sockets which are sequentially engagable in tooth and socket pairs in an engagement direction by relative rotation of the tooth and socket. Each tooth has a first surface and a second surface fixed relative to the first surface. Each socket has a recess defined by a first wall and second wall fixed relative to the first wall. Upon engagement, the first and second surfaces of the tooth abut the respective first and second walls of the recess and prevent relative movement of the tooth in the engagement direction and a portion of the first wall of the socket closely abutting the first surface of the tooth is disposed between the tooth and a portion of the first fastening member and prevents relative separation of the tooth and socket.

Abstract: A fastening device has a first fastening member with a plurality of teeth and a second fastening member with a plurality of sockets which are sequentially engagable in tooth and socket pairs in an engagement direction by relative rotation of the tooth and socket. Each tooth has a first surface and a second surface fixed relative to the first surface. Each socket has a recess defined by a first wall and second wall fixed relative to the first wall. Upon engagement, the first and second surfaces of the tooth abut the respective first and second walls of the recess and prevent relative movement of the tooth in the engagement direction and a portion of the first wall of the socket closely abutting the first surface of the tooth is disposed between the tooth and a portion of the first fastening member and prevents relative separation of the tooth and socket.

Abstract: There is provided an element for a fastener chain. The element includes a body portion fixed on a core portion of a tape, a neck portion, a pair of shoulder portions, an engaging head portion, and a pair of groove portions. As viewed in the width direction, at least one of the pair of shoulder portions and the pair of groove portions is configured to be inclined with respect to a reference direction, which is an extending direction of the core portion on which the body portion is fixed.

Abstract: A fastener element has a central land portion and first and second bulging portions bulging from the central land portion toward the tape front surface side and the tape rear surface side in the element thickness direction. The first and second bulging portions respectively have a bulging end surface facing to the element thickness direction. The bulging end surface has a quadrilateral base end surface which is long in the element length direction and a tapered protrusion end surface protruding from the base end surface in the element width direction. Thus, it is possible to make the fastener element look like a single-sided metal element and to make a slide fastener which is formed by using the fastener elements lighter than a conventional slide fastener having single-sided metal elements.

Abstract: A slide fastener includes first and second rows of slide elements and first and second tapes secured with the respective rows of slide elements. The slide elements of the first row of slide elements are configured to engage with slide elements of the second row of slide elements and each slide element of the first and second rows includes a base, a head, a neck extending between the base and the head, a top surface, a facing surface, and one or more shoulders. A first vertical distance between a lowermost surface of the head and the first end of the first tape is greater than a second vertical distance between a lowermost surface of the base and the first end of the first tape.

Abstract: A fastener stringer is provided with a fixing section in which at least one of a first and second half sections is fixed to a fastener tape and a tapered extending section which extends from the fixing section toward the outside of the tape. A first side face and a second side face in the tape length direction in the fixing section have concave surfaces which curve in a concave shape so as to gradually increase from an element surface of a fastener element toward the fastener tape. Accordingly, each fastener element can exhibit an appearance close to a metallic fastener element and a locking mechanism of a slider can be made to function stably.

Abstract: A slide fastener is provided. Each of a pair of first and second stringers includes a tape and a row of coupling elements mounted on a longitudinal edge of the tape. Each of the coupling elements comprises a first non-connecting portion at an upper side of the tape and a second connecting portion at a lower side of the tape. The second connecting portion comprises a head portion and a body portion. The head portion is engageable with a head portion of opposing coupling element. The body portion is fixed to the tape.

Abstract: A zipper of the disclosure includes a pair of opposite tapes. A plurality of teeth are positioned at a bonding area of each tape. Each of the plurality of teeth 100 defines a positioning groove, and includes a post located in the positioning groove. A portion of the bonding area of the tape corresponding to each tooth defines at least one positioning hole. The post of each tooth passes through a corresponding positioning hole to fix the tooth on the tape firmly.

Abstract: A fastener element includes a coupling head and a pair of leg portions and has a coupling concave portion provided on a first surface of the coupling head and a coupling convex portion projecting from a second surface of the coupling head. An outer margin portion on a first surface side of the coupling head has a first margin portion formed like a ridge line and a pair of second margin portions disposed on both sides of the first margin portion and formed like an inclined surface or a curved surface and one end of each of the second margin portions is arranged on an inside of both end positions of a width direction of the coupling concave portion. Accordingly, the feel of the fastener element can be improved and also the strength of the slide fastener with respect to transverse pulling can stably be maintained.

Abstract: A slide fastener including a pair of first and second stringers each including a tape and a row of coupling elements mounted on one longitudinal edge of the tape; wherein each of the coupling elements includes a first non-connecting portion and a second connecting portion and wherein the second connecting portion includes a head portion and a body portion; and wherein the first non-connecting portion includes an attachment surface to which a decorative element is attached and the attachment surface has a first surface and a second surface lower than the first surface. The decorative element is attached to the second surface.

Abstract: In a waterproof slide fastener, fastener elements are formed using a synthetic resin which contains a silicone resin or a fluorine-based resin, and a water repellant agent is applied to waterproof tapes and the fastener elements and hence, the waterproof slide fastener can exhibit a water-repellent effect brought about by the waterproof tapes and a water-repellent effect brought about by the fastener elements. Accordingly, it is possible to properly prevent the intrusion of a liquid through a gap formed between the left and right fastener elements and a gap formed between the fastener element and the waterproof tape.

Abstract: In a slide fastener according to the invention, each fastener element includes an upper half element portion disposed at a first surface side of a fastener tape and a lower half element portion disposed at a second surface side of the fastener tape. The upper half element portion includes a first tape-sandwiching portion, a first head portion of a tapered form, and a thin walled portion which has a downward inclined surface that is inclined downward toward the forefront of the first head portion from the thin walled start portion set on the upper half element portion to the first head portion side. Thereby, the fastener element can be formed lightweight and can make coupling breaking difficult to occur.

Abstract: A slide fastener for preventing core strings from being caught in a gap between upper and lower flanges, securing the flexibility of the slide fastener when engaged, and improving the designability of the slide fastener. The gap dimension between the upper and lower flanges of a slider in the up-down direction is smaller than the core string dimension in the front-rear direction when the core strings are pressed with the pressure of 5 kgf. Fastener elements are independently disposed in the up-down direction of a tape member when engaged. The fastener element has a design portion disposed at a front side of the tape member, and an engaging portion disposed at a rear side of the tape member so as to engage with adjacent fastener element, and the design portion is disposed distant from the adjacent design portion when engaged and having a hemispherical shape with a curved shape.

Abstract: An automatic gripping closure device comprising a first element with hooks comprising a first base band and at least two first hooks originating from the first band and placed in at least one row of first hooks (9), each first hook being delimited by two faces (11, 12) that are mutually opposed and transverse to the direction of the at least one row of first hooks and at least one coupling portion (13, 14) protruding laterally from the stem, preferably at the top of the latter, while extending in a direction transverse to the direction of the row, and a second element with hooks comprising a second base band and at least two second hooks originating from the second band and placed in at least one row.

Abstract: In a slide fastener (1) according to the invention, each fastener element (10, 10?, 30, 40) includes an upper half element portion (11, 31, 41) disposed at a first surface side of a fastener tape (2) and a lower half element portion (21) disposed at a second surface side of the fastener tape (2). The upper half element portion (11, 31, 41) includes a first tape-sandwiching portion (12, 32, 42) and a first head portion (13, 13?, 33, 43) of a tapered form that extends from the first tape-sandwiching portion (12, 32, 42). The upper half element portion (11, 31, 41) has a tapered portion (14, 34, 44) that gradually decreases in a dimension between front and rear side surfaces, in the tape length direction, of at least the first tape-sandwiching portion (12, 32, 42) as it goes upward. According to the slide fastener (1) of the invention, each fastener element (10, 10?, 30, 40) can be formed lightweight, and the fastener element (10, 10?, 30, 40) can be given an appearance looking like a metal fastener element.

Abstract: A slide fastener which withstands a predetermined lateral pulling force in a usual usage and is cloven when an excessive lateral pulling force is applied at the time of airbag inflation, wherein the slide fastener in which a plurality of attachment leg portions of coupling teeth, on each of which a coupling head formed to have a relatively large width and the attachment leg portions extending from the coupling head are formed, are attached on a coupling tooth attaching portion of each of a pair of fastener tapes on right and left with a predetermined pitch along a tape longitudinal direction is configured to satisfy a relationship 0.4?(2×H?P)/P?0.1 between a summit height H [mm] of the coupling head formed to have a relatively large width and a pitch P [mm].

Abstract: A slide fastener where each fastener element includes an upper half element portion disposed at a first surface side of a fastener tape and a lower half element portion disposed at a second surface side of the fastener tape. The upper half element portion includes a first tape-sandwiching portion and a first head portion of a tapered form that extends from the first tape-sandwiching portion. The upper half element portion has a tapered portion that gradually decreases in a dimension between front and rear side surfaces, in the tape length direction, of at least the first tape-sandwiching portion as it goes upward. Each fastener element can be lightweight, and the fastener element can look like a metal fastener element.

Abstract: The slide fastener includes elements and a slider, wherein each of the elements includes a horizontal functional section an upper vertical functional section and a lower vertical functional section the slide fastener includes a plurality of fastener units in each of which the elements are arranged to oppositely face each other and the meshing portions are meshed with each other by sliding the slider between the oppositely-positioned elements, whereby the engagement pieces of the oppositely-positioned elements form an engagement portion and the engagement holding pieces of the oppositely-positioned elements in pair form an engagement holding portion, and the plurality of fastener units are constituted in a multilayered structure by engaging the engagement holding portions of a second fastener with the engagement portions of a first fastener such that the engagement holding portions of a new fastener unit are engaged with the engagement portions of a preceding fastener unit.

Abstract: The slide fastener comprises elements, and a slider, the slide fastener opening and closing a horizontal opening/closing portion and a vertical opening/closing portion with one operation by sliding the slider along the elements. The slide fastener includes a horizontal functional section and a vertical functional section. The horizontal functional section includes element heads which are meshed with and unmeshed from each other, and horizontal fastener tapes. The vertical functional section includes element legs extending vertically to the horizontal direction and bending into a hook-like shape, holding portions which are formed by distal ends of the element legs, and a vertical fastener tape.

Abstract: A metallic double-sided element comprising a coupling head includes: thin flat plate portions; coupling convex portions projecting at a central portion in the right-left direction of the thin flat plate portion; right and left raised portions which are raised in the front surface-rear surface direction from the thin flat plate portion disposed on the right and left sides of each of the coupling convex portions and integrated with the body portion; and a coupling concave portion which is formed surrounded by the coupling convex portion, the right and left raised portions and the body portion, wherein each of the right and left raised portions has a slope portion which is inclined from a front edge toward the body portion such that the slope portion rises thereof, part of each side face of the right and left slope portions is integrated with part of right and left side faces of the coupling convex portion in a face bonding manner.

Abstract: A zipper strip for a reclosable package having a transverse zipper is provided. The zipper strip comprises a male interlocking profile and a female interlocking profile. Each profile includes an interlocking member and an integral web which defines a leading flange. The leading flanges are sealed to thermoplastic film material which is used to make the reclosable packages and to each other. One of leading flanges is provided with a perforation along its length so that it can be separated by pulling the profiles apart.

Abstract: A zipper closure including first and second rows of teeth formed on first and second bands. Each tooth has a free end in which a channel is formed. Each channel has a bottom which is convexly curved. The zipper closure includes a slider with a projection for opening and closing the zipper closure.

Abstract: The invention relates to a zipper closure comprising a first and second row of teeth formed on a first and second band, each band comprising an edge bead or web, said teeth having free ends, each of which with a channel formed therein, when said zipper closure being closed said free ends of said first row of teeth extending into an area of attachment of said teeth of said second row of teeth and vice versa, whereby said channels receive said edge beads or webs, the zipper closure further comprising a slider with a top cover plate and a bottom cover plate connected by a cross-piece, said slider having a wider front end and a narrower back end, said cross-piece having a front end directed towards said wider front end of said slider and a back end directed towards said narrower back end of said slider.

Abstract: A press-formed, metal, coupling element particularly suitable for use in a bidirectionally openable slide fastener which includes a coupling head portion having on its opposite end a protrusion and a corresponding pocket, and a guide groove formed in the front end of the coupling head portion, the guide groove having a width and a depth both reducing progressively from the pocket side toward the protrusion side of the coupling head portion. When the slide fastener is opened and closed, the guide groove in each coupling element slidably receives and guides the front end portion of the opposite coupling element as the protrusion and pocket of these coupling element are brought into and out of mutual engagement with each other. With the provision of the guide groove, the coupling elements are mutually engageable and disengageable with least friction resistance when the slide fastener is opened and closed in either of two reciprocal directions. A simple method of making such coupling element is also disclosed.

Abstract: A watertight slide fastener stringer comprises a series of coupling elements mounted on a watertight stringer tape along a longitudinal edge portion thereof. Each coupling element includes a pair of upper and lower halves or members disposed one on each side of the stringer tape and joined by at least one integral connector extending through the stringer tape. Each of the coupling element members has a coupling portion including a support portion disposed on a thickened sealing member which is disposed on the longitudinal tape edge, a neck portion on the support portion, and a coupling head on the support portion integral with the neck and projecting beyond the thickened sealing member. The support portion and the neck portion jointly define therebetween a pair of recesses opening away from the plane of the stringer tape for receiving therein the coupling heads of mating coupling elements.

Abstract: A sliding clasp fastener which is provided has a pair of sliders for opening and closing the fastener in the forward direction and in the reverse direction, respectively. The fastener has a series of discrete coupling elements each having means for facilitating engagement of adjacent elements with minimum frictional resistance when the fastener is opened or closed in the reverse direction, such means comprising a pocket having a front end wall sloping at the outside of the pocket and being reinforced by rib means inside the pocket.

Abstract: A slide fastener comprises discrete coupling elements each having a pair of upper and lower coupling portions disposed one on each side of the plane of a stringer tape. The upper coupling portion has an arcuate head and a reduced neck integral therewith and complementary in shape thereto, the neck being defined by a pair of recesses. The lower coupling portion has a pair of substantially triangular shoulders extending laterally in opposite directions over the recesses beyond the width of upper and lower legs extending from the neck away from the head. Each shoulder is defined by an angled sidewall blending at one end with the lower leg adjacent to a corresponding one end of the sidewall of the neck and intersecting the opposite end of the neck's sidewall.

Abstract: A fluid-tight slide fastener stringer comprising a support tape made of a fluid-tight soft material, and a row of discrete coupling elements mounted on the tape along an inner longitudinal edge portion thereof. Such tape margin is folded so as to provide therealong a contact portion engageable with a corresponding contact portion of a like companion stringer to effect a fluid-tightness between the two stringers. In order to absorb or reduce undue stress exerted on the individual coupling elements, each coupling element has a slot extending parallel to the general plane of the stringer transversely through the whole width of a coupling head portion and also extending longitudinally of the same coupling element through the coupling head portion into a base portion.

Abstract: A coupling element of a slide fastener stringer has a pair of integral upper and lower coupling portions having different shapes and engagable with the lower and upper coupling portions of adjacent coupling elements on a co-operating like stringer. The upper coupling portion has a side surface including a flat abutment surface extending perpendicularly to a stringer tape across the thickness of a longitudinal edge portion of the stringer tape. When lateral pulling forces are applied to the coupled stringers, areas on the abutment surfaces of the interdigitating coupling elements take up such forces and prevent the stringers from separation.

Abstract: A slide fastener bottom end stop comprises three members combinable into a functionally integral body upon being threaded through a slider. A first member which is mounted on a first bead and substantially identical in shape and size with a fastener element engages a lowermost element on a second bead. A second member which is mounted on the first bead a given distance below the first member has protuberances extending obliquely upwardly towards the second bead. A third member which is mounted on the second bead one interelement distance below the lowermost element has tongues extending obliquely downwardly towards the first bead for smooth engagement with the protuberances of the second member.

Abstract: A slide fastener has a pair of tapes along confronting edges of which are provided respective rows of coupling elements in a ladder configuration with individual members being affixed together by a continuous textile strand, as one-arm rungs of the ladder. Each coupling member is molded unitarily and unbent, and comprises an upper portion and a lower portion separated by a plane parallel to a slide fastener plane. The head of each coupling member lies above this plane and is mushroom-shaped to have a neck reaching inwardly toward the respective edge of the tape. Flush with this plane but on the lower half of the coupling member are a pair of ledges which function to absorb forces transverse to this plane. The connecting yarn is embedded in the upper half which can be provided for connection to the tape.