Abstract: Fastener element of slide fastener has an intermediate portion including bent or curved portion between a terminal portion and a base portion. The intermediate portion has an engaging protrusion and an engaged recess which are respectively protruded and recessed on an axis that matches a movement direction of the slider. In an orthogonal direction orthogonal to the axis, a first distance between the axis and the terminal surface of the terminal portion is less than a second distance between the axis and the base end surface of the base portion.

Abstract: In this molded surface fastener, an engaging element includes a columnar stem portion, and micro pawl portions protruding outward from an upper end outer peripheral edge of the stem portion in a plan view of the engaging elements. A pawl width dimension of the micro pawl portions is smaller than a line segment connecting two points on the upper end outer peripheral edge of the stem portion. The micro pawl portions protrude toward a base portion. This molded surface fastener has a high peel strength and a shear strength with respect to a female surface fastener.

Abstract: A fastener stringer has a fastener tape provided with a tape main body portion and an element attaching portion and a plurality of fastener elements fixed by weaving to the element attaching portion of the fastener tape at the same time of weaving of the fastener tape, and is provided with a weaving structure with one pitch per one-rotation. A weft yarn of the fastener tape has a fineness larger than that of at least a part of a warp yarns disposed in the tape main body portion. Thereby, the productivity of the fastener stringer can be increased to reduce the cost. Further, the density of the weft yarn in the fastener tape can be increased, and the fastener tape can be less likely to be misaligned.

Abstract: An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.

Abstract: A method for sewing a slide fastener includes forming end edge portion needle drop points in at least two positions, within an overlapped portion in which the work piece is folded, within a range more toward a tip side of an end edge portion of the work piece than half of an overlapped width, and within a range on an inner side of a width of a leg portion of an interlocking element. Sewing is performed with sewing thread passing from a head portion needle drop point to the end edge portion needle drop point of one end portion and sewing thread passing from the end edge portion needle drop point of another end portion to the head portion needle drop point of an adjacent interlocking element each passing either side of the leg portion.

Abstract: A slider includes: a slider body including an upper vane, a lower vane, and a guide post connecting the upper vane and the lower vane; and a pull tab connected to the slider body. The upper vane is provided with a pair of lateral walls projecting from an upper surface of the upper vane in a thickness direction of the slider body. A connection bearing for a connecting pin supported by the pair of lateral walls to be inserted is provided to the pull tab. The upper vane is provided with a recess dented toward the lower vane in the thickness direction with respect to the upper surface. The connection bearing is located in the recess between the pair of lateral walls.

Abstract: In this molded surface fastener, an engaging element includes a columnar stem portion, and micro pawl portions protruding outward from an upper end outer peripheral edge of the stem portion in a plan view of the engaging elements. A pawl width dimension of the micro pawl portions is smaller than a line segment connecting two points on the upper end outer peripheral edge of the stem portion. The micro pawl portions protrude toward a base portion. This molded surface fastener has a high peel strength and a shear strength with respect to a female surface fastener.

Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.

Abstract: A motion guiding device includes: a lower rail having a guiding groove; an upper rail movably disposed in the guiding groove; a first side cover and a second side cover that are fixed to the lower rail; and a slide fastener held by the first side cover and the second side cover. Each of the first side cover and the second side cover includes: a cover body piece engaged with a fastener tape of the slide fastener such that the fastener tape is movable to open and close the slide fastener; and a fixing piece extending from a surface of the cover body piece. The cover body piece includes a support projection projecting from the surface of the cover body piece.

Abstract: The disclosure discloses a method for forming a rubber layer on a surface of a resin material. In the method, painting is first performed on the surface of the resin material to form a painting layer, using a paint to which a pigment has been added; then, rubber coating is performed to form a rubber layer on the painting layer. The method of the disclosure may be used in surface treatment of a fastener product. The disclosure further discloses a slide fastener, a buckle and a snap button using the method of the disclosure. The method of the disclosure may solve a conventional problem that a rubber coating is likely to fall off a resin surface, and the rubber on the surface of the resultant fastener product is less likely to fall off.

Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.

Abstract: Provided is a snap button including a male snap button (30) made of metal and a female snap button (10). The male snap button (30) includes a base portion (31) and an engaging protuberance (32) which projects from the base portion (31). The female snap button (10) includes: a ring member (20, 120) made of soft resin, defining an engagement space (20a) which detachably accepts the engaging protuberance (32); and a female snap body (11) made of metal, accommodating the ring member (20, 120). The ring member (20, 120) is provided with a protruding portion (24) which projects further out to one side than an end (12a), on said one side, of the female snap body (11) facing the male snap button (30) in an axial direction, and which is provided in circumferential direction.

Abstract: Provided is a copper alloy fastener element which improves season cracking resistance by a means different from that of increasing a ratio of a ? phase. The copper alloy fastener element includes a copper-zinc alloy as a base material, the base material having: an apparent zinc content of from 34 to 38%; a dendrite structure; and a ? phase at a ratio of 10% or less.

Abstract: A method includes: agitating base members that has been immersed in an electrolytic solution inside of an electroplating tank so as to flow in a circumference direction along an inner wall of the electroplating tank; and electroplating the base members flowing along the circumference direction in the electrolytic solution inside of the electroplating tank. The flow of the base members along the circumference direction is caused by a flow of magnetic media along the circumference direction in the electrolytic solution inside of the electroplating tank or is caused by rotation of an agitation unit provided at a bottom side of the electroplating tank. At least one of the base members touches a bottom cathode, and a base member positioned upward relative to the base member touching the bottom cathode is electrically connected to the bottom cathode via at least the base member touching the bottom cathode.

Abstract: A hook fastener includes a stem having two lateral edges, a first surface, and a second surface. A cap extends from an upper end of the stem, and the cap includes an upper surface, a first end, a second end, and a pair of overhanging portions. The upper surface of the cap is sloped between the first end and the second end. The first and second ends are at opposite longitudinal ends of the cap, and each overhanging portion extends in a lateral direction from the stem.

Abstract: Provided is a male snap button (10) including a metal male snap body (20), and a fixing member (30) for fixing the male snap body (20) to a fabric (1). The male snap body (20) includes: a male-side engagement part (21) in annular shape capable of being removably engaged with a female-side engagement part (60) of a female snap button (40); and multiple claws (27). The male-side engagement part (21) defines an opening (28) that exposes the fabric (1) inside in a radial direction thereof. A diameter (D1) of the opening (28) is greater than a length (W1) in the radial direction from an outside edge of the opening (28) in the radial direction to an outside edge of the male snap body (20) in the radial direction. The fixing member (30, 30a) includes claw accommodation parts (33) to receive the claws (27).

Abstract: This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.

Abstract: A female snap assembly includes a cage and an engagement member. The cage defines a receiving region, and the engagement member is within the receiving region. The engagement member includes a base, an inner engagement wall extending from base, and an outer engagement wall extending from the base. In some examples, the engagement member defines a channel between the inner engagement wall and the outer engagement wall. In various examples, the inner engagement wall defines at least one notch extending through the inner engagement wall.

Abstract: A slide fastener-attached product has a first element member in which an insert pin portion is attached to a fixing member, a second element member in which a box portion is attached to a fixing member and fastener attached members having a pair of element attaching edge portions in a position facing to each other. The first element member and the second element member have an element holding portion and a component holding portion in which the insert pin portion or the box portion is attached with respect to the length direction of the fixing member, and at least the component holding portion is fixed to the element attaching edge portion of the fastener attached member with a component sewn portion which is formed of sewing threads and pierces the fastener attached member. The product provides weight saving, improved softness, and an easily separable rear end stop.

Abstract: A first stop member includes a first base and a first insert that is positioned between the first base and a first fastener element and is inserted into the slider via a rear mouth of a slider. A second stop member includes a second base and a second insert that is positioned between the second base and a second fastener element and is inserted into the slider via a second slit of the slider. The second insert moves toward the second slit of the slider in accordance with at least one or respective rotations of the first and second bases. A rotational axis with respect to the at least one or respective rotations of the first and second bases is positioned between the first tape region and the second tape region.