An improved season cracking resistance of a metallic fastener member is provided and includes a copper alloy containing zinc as a base material. The metallic fastener member includes, as a base material, a copper alloy containing zinc, and the metallic fastener member has a surface to which a rust prevention treatment has been applied and has such a property that, when analyzed by a scanning X-ray photoelectron spectroscopy apparatus, a maximum value of an atomic concentration of Mn is detected at a depth of 100 nm or less from the surface.

An improved season cracking resistance of a metallic fastener member is provided and includes a copper alloy containing zinc as a base material. The metallic fastener member includes, as a base material, a copper alloy containing zinc, and the metallic fastener member has a surface to which a rust prevention treatment has been applied and has such a property that, when analyzed by a scanning X-ray photoelectron spectroscopy apparatus, a maximum value of an atomic concentration of Mn is detected at a depth of 100 nm or less from the surface.

The invention relates to a monitor device for monitoring the closed or open state of an article, the monitor device being in the form of an electronic circuit comprising a zip closure system comprising two strips, each having fastened thereto a row of elements, referred to as teeth (11, . . . , 14, 20, . . . , 25), which elements are made of electrically conductive material. A slider (3) is mounted to slide along the strips and is configured, in one direction, to cause the teeth of one row to mesh with the teeth of the other row, and in the other direction, to separate the teeth. A detector-and-signaling device (4) is connected firstly to at least one of the teeth, referred to as a first terminal (21), and secondly to at least one of the other teeth, referred to as a second terminal (24). The detector-and-signaling device is configured to detect the state of electrical continuity between the first and second terminals (21, 24), and to issue a signal as a function of said detected continuity state. The first terminal (21) and the second terminal (24) are spaced apart from each other by at least one tooth (22, 23), said at least one tooth having no electrical connection with said terminals when the teeth of the two rows are in the separated state.

The invention relates to a monitor device for monitoring the closed or open state of an article, the monitor device being in the form of an electronic circuit comprising a zip closure system comprising two strips, each having fastened thereto a row of elements, referred to as teeth (11, . . . , 14, 20, . . . , 25), which elements are made of electrically conductive material. A slider (3) is mounted to slide along the strips and is configured, in one direction, to cause the teeth of one row to mesh with the teeth of the other row, and in the other direction, to separate the teeth. A detector-and-signaling device (4) is connected firstly to at least one of the teeth, referred to as a first terminal (21), and secondly to at least one of the other teeth, referred to as a second terminal (24). The detector-and-signaling device is configured to detect the state of electrical continuity between the first and second terminals (21, 24), and to issue a signal as a function of said detected continuity state. The first terminal (21) and the second terminal (24) are spaced apart from each other by at least one tooth (22, 23), said at least one tooth having no electrical connection with said terminals when the teeth of the two rows are in the separated state.

A clasp assembly is provided. The clasp assembly includes a first clasp member, a second clasp member, a first magnet, and a metallic component. The first clasp member defines a first cavity sized to receive a first portion of a zipper, and defines a first portion extending over the first cavity. The second clasp member defines a second cavity sized to receive a second portion of the zipper, and defines an overhang. The first magnet is secured to one of the first portion of the first clasp member and the overhang of the second clasp member. The metallic component is secured to another of the first portion of the first clasp member and the overhang of the second clasp member. The overhang is sized to receive the first portion of the first member to align the first magnet and the metallic component for magnetic interaction therebetween.

To provide an electric slide fastener system that can operate appropriately according to a state of an electric slider. An electric slide fastener system includes a slide fastener chain that includes a pair of fastener tapes and element rows including a plurality of elements fixed to the respective fastener tapes, a slider that moves with respect to the slide fastener chain, a power supply that supplies power for the slider to move with respect to the slide fastener chain, and a driving part to which the power is supplied from the power supply and that moves the slider with respect to the slide fastener chain. The elements pass through the slider to open or close the element rows. The slider is powered from outside.

To provide an electric slide fastener system that can operate appropriately according to a state of an electric slider. An electric slide fastener system includes a slide fastener chain that includes a pair of fastener tapes and element rows including a plurality of elements fixed to the respective fastener tapes, a slider that moves with respect to the slide fastener chain, a power supply that supplies power for the slider to move with respect to the slide fastener chain, and a driving part to which the power is supplied from the power supply and that moves the slider with respect to the slide fastener chain. The elements pass through the slider to open or close the element rows. The slider is powered from outside.

A zipper without electrical components that generates a distinctive sound when the zipper is opened or closed is disclosed herein. The zipper comprises a slider, a first and a second track. The slider comprises a plurality of tone bars and a plurality of audio openings. The first track comprises a plurality of zipper teeth. The second track comprises a plurality of zipper teeth. Each zipper tooth of the plurality of zipper teeth of the first track and the second track comprises at least one raised portion. The slider is configured to generate a musical sound when the slider is slid over the first track and the second track.

A zipper without electrical components that generates a distinctive sound when the zipper is opened or closed is disclosed herein. The zipper comprises a slider, a first and a second track. The slider comprises a plurality of tone bars and a plurality of audio openings. The first track comprises a plurality of zipper teeth. The second track comprises a plurality of zipper teeth. Each zipper tooth of the plurality of zipper teeth of the first track and the second track comprises at least one raised portion. The slider is configured to generate a musical sound when the slider is slid over the first track and the second track.

A fastener chain is disposed with a front side covered with left and right attached bodies and includes a pair of left and fastener stringers attached to the left and right attached bodies. The fastener stringers each include a fastener tape having a code core, and a fastener element array including elements fixed to the code core. The elements each include an element base provided with a tape fixing portion to which the code core is fixed and an element head portion. An engagement portion is provided in a state where the element head portions are engaged with each other. A space in which the attached bodies are to be sandwiched is provided between the elements of the left and right fastener stringers, on an upper side relative to the engagement portion.