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US20030177617A1 - Stainless steel, slide fastener and buttons suitable for use with needle detector - Google Patents

Stainless steel, slide fastener and buttons suitable for use with needle detector Download PDF

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Publication number
US20030177617A1
US20030177617A1 US10/395,596 US39559603A US2003177617A1 US 20030177617 A1 US20030177617 A1 US 20030177617A1 US 39559603 A US39559603 A US 39559603A US 2003177617 A1 US2003177617 A1 US 2003177617A1
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US
United States
Prior art keywords
needle
stainless steel
less
needle detector
button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/395,596
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English (en)
Inventor
Kazuhiko Kita
Sakae Awata
Kouki Sugihara
Satoshi Suzuki
Katsumi Ishii
Naoto Hiramatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Assigned to YKK CORPORATION reassignment YKK CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AWATA, SAKAE, HIRAMATSU, NAOTO, ISHII, KATSUMI, KITA, KAZUHIKO, SUGIHARA, KOUKI, SUZUKI, SATOSHI
Publication of US20030177617A1 publication Critical patent/US20030177617A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B1/00—Buttons
    • A44B1/02—Buttons characterised by their material
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/26—Sliders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/25—Zipper or required component thereof
    • Y10T24/2561—Slider having specific configuration, construction, adaptation, or material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/36—Button with fastener
    • Y10T24/3651—Separable

Definitions

  • the present invention relates to a stainless steel suitable for use with a needle detector that does not cause needle detectors to malfunction, and a slide fastener and buttons that are mounted on clothing, footwear or the like and are suitable for coping with needle detectors.
  • the stainless steels of the above patent publications are insufficient in terms of coping with needle detectors that detect whether broken needles or the segments thereof remain in clothing or the like.
  • the alloy disclosed in Japanese Patent Publication No. 2000-256813A is known as an alloy for personal ornamental use that does not cause needle detectors to malfunction. That patent application discloses that the alloy can be used in various personal ornaments such as buttons, slide fasteners, key-rings, earrings, tie-pins, brooches and pendants, and constituent components of such personal ornaments.
  • the alloy disclosed in that patent application is an alloy having Zr and/or Ti as a principal component thereof, and hence is a special alloy from the viewpoint of alloys used hitherto, and moreover has a problem of not being able to be manufactured easily since the alloy structure must be controlled.
  • a slide fastener or button is manufactured using only this alloy, sufficient ability to cope with needle detectors can be attained, but slide fasteners and buttons are constituted from many different components, and each component is manufactured in accordance with the required properties thereof.
  • all of the many different components of a slide fastener or button are manufactured from this alloy, some of the components may lack the required capabilities.
  • use of the above alloy is problematic, and hence a conventional stainless steel or the like must be used; it thus becomes impossible to adequately carry out detection of whether broken needles have got into clothing or the like during sewing.
  • the stainless steel according to the present invention can be used not only in slide fasteners and buttons suitable for use with a needle detector, but also in uses in which non-magnetism is required, for example in members such as gun parts and magnetic sensor cases.
  • the present invention is constituted as follows.
  • a stainless steel suitable for use with a needle detector having a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe, and a magnetization of 550 memu/g or less in a magnetic field of 18 kOe.
  • Ni equivalent Ni+0.6Mn+9.69(C+N)+0.18Cr ⁇ 0.11Si 2
  • Ni, Mn, C, N, Cr and Si represent the numerical values of their contents represented by mass % unless otherwise specified.
  • a slide fastener suitable for use with a needle detector comprising elements mounted on mutually facing edge parts of a pair of fastener tapes, stops mounted at both ends of the elements, and a slider that opens and closes the elements, wherein at least one member selected from the group consisting of the elements, stops and slider, and constituent components thereof is formed from a stainless steel suitable for use with a needle detector, having a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe, and a magnetization of 550 memu/g or less in a magnetic field of 18 kOe.
  • the slider for slide fastener comprises a slider body, a pull-tab disposed on the slider body, and a latching pawl that is swingable through operation of the pull-tab and is pushed by urging means that applies force toward the slider body side, and at least the urging means is formed from the stainless steel suitable for use with a needle detector.
  • a button suitable for use with a needle detector which comprises a front surface member disposed on a front surface of cloth, and a base member disposed on a reverse surface of the cloth, and is attached to the cloth by engaging the front surface member and base member together, wherein at least one member selected from the group consisting of the front surface member and base member, and constituent components thereof is formed a stainless steel suitable for use with a needle detector, having a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe, and a magnetization of 550 memu/g or less in a magnetic field of 18 kOe.
  • the button suitable for use with a needle detector according to (12) above, exhibiting a needle-detecting performance of 1.2 mm-diameter iron ball or less.
  • the button suitable for use with a needle detector according to (12) above, exhibiting a needle-detecting performance of 0.8 mm-diameter iron ball or less.
  • a button suitable for use with a needle detector comprising a pair of buttons comprising a male button that is fixed to cloth and has on a surface thereof a bulging head part that projects out, and a female button that is fixed to cloth and has a recessed part that separates from and engages with the bulging head part of the male button, wherein at least one member selected from the group consisting of the male button and female button, and constituent components thereof is formed from a stainless steel suitable for use with a needle detector, having a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe, and a magnetization of 550 memu/g or less in a magnetic field of 18 kOe.
  • FIG. 1 is a conceptual illustration of a slide fastener.
  • FIG. 2 is a perspective view of a slider to which the present invention is applied.
  • FIG. 3 is a sectional view of the slider to which the present invention is applied.
  • FIG. 4 is a perspective view of another example of a slider.
  • FIG. 5 is an exploded-perspective view of the other example of a slider.
  • FIG. 6 is a longitudinal sectional view along a central line in the longitudinal direction of the slider.
  • FIG. 7 is a sectional view of an ornamental button that is mounted at the edge of a jeans pocket or the like.
  • FIG. 8 is a sectional view of another example of an ornamental button.
  • FIG. 9 is a sectional view of an ornamental button that is used on a jacket or the like.
  • FIG. 10 is a sectional view of a fastening button that is used on clothing or the like.
  • FIG. 11 is a sectional view of a snap button.
  • FIG. 12 is a sectional view of another example of a snap button.
  • FIG. 13 is a sectional view of another example of a snap button.
  • the stainless steel of the present invention must have a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe, and a magnetization of 550 memu/g or less in a magnetic field of 18 kOe, this being to make the stainless steel able to cope with needle detectors, which is an object of the present invention.
  • the amount of change in the magnetic flux density corresponding to a 0.8 mm-diameter iron ball is set to a reference value (indicative value) of 100 to 120, the value upon carrying out measurement on the article undergoing measurement is taken as the needle-detecting value, and evaluation is carried out based on the value relative to the reference value.
  • the needle-detecting performance is represented as “0.8 mm-diameter iron ball or less”
  • the needle-detecting performance is represented as “1.2 mm-diameter iron ball or less”.
  • needle-detecting performance is represented as being one of 0.8-, 1.2- or 1.5 mm-diameter iron ball or less; in the case that the needle-detecting performance is 0.8 mm-diameter iron ball or less, this means that even a broken needle of the smallest special size used in sewing can be detected, and in the case that the needle-detecting performance is 1.2 mm-diameter iron ball or less, this means that a broken needle of an ordinarily used size can be detected accurately.
  • the needle-detecting performance is preferably 1.2 mm-diameter iron ball or less, most preferably 0.8 mm-diameter iron ball or less.
  • the article undergoing measurement is a piece of the alloy of size 15 mm ⁇ 15 mm ⁇ 0.4 mm, and the needle-detecting value for the article undergoing measurement is the result obtained upon passing the article undergoing measurement through perpendicular to the magnetic flux.
  • the article undergoing measurement is the product or component, and the needle-detecting value for the article undergoing measurement is the result obtained upon passing the article undergoing measurement through perpendicular to the magnetic flux.
  • C is a potent austenitic phase stabilizing element, and moreover is an element effective for improving the spring characteristics, and hence the lower limit of the C content is made to be 0.01%.
  • C is an element that brings about a drop in the corrosion resistance, and moreover if solid solution of C occurs excessively then the workability of the stainless steel is marred due to hardening caused by the increase in the amount of C in solid solution, and hence in consideration of this the upper limit of the C content is made to be 0.15%.
  • Si is an effective element for achieving high strength, and hence it is preferable for the Si content to be at least 0.1%.
  • the Si content increases, the magnetic permeability after cold working increases dramatically and thus it become impossible to maintain the non-magnetism, and hence the upper limit of the Si content is made to be 5%.
  • Mn is an austenitic phase stabilizing element, and hence suppresses increase in the magnetic permeability upon cold working. Moreover, Mn is an element that increases the solid solubility of N. For these capabilities to be exhibited, the Mn content must be at least 1%, and moreover the Mn content must be adjusted along with the Ni content to maintain the non-magnetism after cold working; however, if more than 10% of Mn is contained then effects commensurate with this will not be observed, and hence the upper limit of the Mn content is set to 10%.
  • Ni is a fundamental component of austenitic stainless steel, and is an effective element for contributing to stabilization of the austenitic phase.
  • the Ni content must be at least 8%, and moreover the Ni content must be adjusted along with the Mn content in accordance with the Si content.
  • Ni brings about a drop in the spring characteristics after cold working, and hence the upper limit of the Ni content is made to be 25%.
  • Cr is a fundamental component of stainless steel, and to obtain excellent corrosion resistance the Cr content must be at least 14%; however, if a large amount of Cr is contained, then a large amount of delta ferrite will be produced and hence it will no longer be possible to secure the non-magnetism; the upper limit of the Cr content is thus made to be 30%.
  • N is an element that is effective for maintaining the non-magnetism, which is a main characteristic feature of the stainless steel of the present invention, and for improving the strength and obtaining excellent spring characteristics; the lower limit of the N content is thus made to be 0.01%.
  • the N content exceeds 0.25%, then as with C, the workability of the stainless steel will be marred due to hardening caused by an increase in the amount of N in solid solution. Moreover, the castability will be marred and hence it will not be possible to obtain a sound steel ingot; the upper limit of the N content is thus made to be 0.25%.
  • the upper limit of the N content be less than 0.06%.
  • Cu is an austenitic phase stabilizing element, and is an effective element for conferring workability. To exhibit this effect, it is preferable to add at least 0.5% of Cu. However, if more than 3% of Cu is added then such an excess addition of Cu exceeding the solid solubility limit will impair the workability, and hence the upper limit of the Cu content is made to be 3%.
  • Nb, W and V are all elements that increase the work-hardening ability, and to exhibit this effect it is preferable to add at least 0.05% of Nb, W and V in total. However, if large amounts of Nb, W and V are added, then there will be a deterioration in the hot workability, and delta ferrite will be produced and hence it will no longer be possible to maintain the non-magnetism; the upper limit of the total content of Nb, W and V is thus made to be 0.5%.
  • Mo is an element that is effective for improving the corrosion resistance, and to exhibit this effect it is preferable to add at least 0.1% of Mo. However, if a large amount of Mo is added then the amount of delta ferrite produced will increase and hence it will no longer be possible to maintain the non-magnetism; the upper limit of the Mo content is thus made to be 2%.
  • the value of the Ni equivalent stipulated as described earlier must be at least 19.
  • the cold rolling reduction ratio is defined as the percentage of the change in the sheet thickness of the material upon cold rolling to the original sheet thickness.
  • a constituent-component of a slide fastener or the like in which the stainless steel of the present invention is used is manufactured by cold rolling with a cold rolling reduction ratio as defined above of at least 60%, and hence it is necessary for the needle-detecting performance to be maintained after the 60% cold rolling reduction has been effected.
  • a cold rolling reduction ratio as defined above of at least 60% is necessary, and hence it is necessary for the needle-detecting performance to be maintained after at least 30% cold rolling reduction has been effected; depending on the product or component manufactured, it may be necessary to effect a 60% cold rolling reduction, and hence it is particularly preferable for the needle-detecting performance to be maintained after the 60% cold rolling reduction has been effected.
  • FIG. 1 is a conceptual drawing of the slide fastener; as shown in FIG. 1, the slide fastener F comprises a pair of fastener tapes 1 each of which has a core part 2 formed at an edge on one side thereof, elements 3 that are fixed (mounted) by caulking at prescribed intervals onto the core part 2 of each fastener tape 1 , a top stop 4 and a bottom stop 5 that are fixed by caulking onto the core part 2 of each fastener tape 1 at the top and bottom ends respectively of the elements 3 , and a slide fastener slider (hereinafter referred to as the “slider”) S that is disposed between facing pairs of elements 3 and can be freely slid in an up/down direction to engage and separate (open and close) the elements 3 .
  • the slide fastener F comprises a pair of fastener tapes 1 each of which has a core part 2 formed at an edge on one side thereof, elements 3 that are fixed (mounted) by caulking at prescribed intervals onto the core part 2 of each fastener tape 1
  • the article obtained by mounting elements 3 onto the core part 2 of the fastener tape 1 is a slide fastener chain 7 .
  • the bottom stop 5 may be made to be a separable bottom stop assembly comprising an insertion pin, a box pin and a box body, whereby the pair of slide fastener chains 7 can be separated through the opening operation of the slider S.
  • the stainless steel suitable for use with a needle detector described above can be used for the elements 3 , the top stop 4 , the bottom stop 5 , the slider S, the separable bottom stop assembly, and so on if these are made of metal.
  • the stainless steel suitable for use with a needle detector can be used for constituent components of the slider S and the separable bottom stop assembly, for example the insertion pin, the box pin, the box body, and so on (for the slider S, the constituent components will be described later).
  • the above description has been given based on a slide fastener that uses elements 3 , a top stop 4 and a bottom stop 5 that are made of metal, but the present invention may also be applied to a slide fastener that uses elements 3 , a top stop 4 and a bottom stop 5 that are formed from a resin, for example, by injection, or from a resin filament (e.g. in a coil form), in which case the target of application of the present invention becomes other components and so on that are made of metal.
  • FIG. 2 is an exploded perspective view that shows the relationship between the various components in exploded fashion
  • FIG. 3 is a longitudinal sectional view along a central line in the longitudinal direction of the slider.
  • 11 indicates a slider body
  • 12 indicates a pull-tab
  • 13 indicates a latching pawl-possessing spring.
  • a spring part 14 at the front and a latching pawl part 15 at the back are formed integrated together.
  • the slider S 1 is constituted by disposing the pull-tab 12 on the slider body 11 , and mounting the latching pawl-possessing spring 13 on a top part of the slider body 11 .
  • an end part of the latching pawl part 15 of the latching pawl-possessing spring 13 is pushed downward by application of force from the spring part 14 of the latching pawl-possessing spring 13 and hence bites in between elements, not shown, thus stopping downward movement of the slider S 1 .
  • the pull-tab 12 is operated upward against the force from the spring part 14 , whereby the end part of the latching pawl part 15 moves upward, and thus the latching with the elements, not shown, is released, and hence downward movement of the slider S 1 becomes possible.
  • FIGS. 4, 5 and 6 show another example of the slider S;
  • FIG. 4 is a perspective view of the slider S 2
  • FIG. 5 is an exploded perspective view that shows the relationship between the various components in exploded fashion
  • FIG. 6 is a longitudinal sectional view along a central line in the longitudinal direction of the slider.
  • 11 indicates a slider body
  • 12 indicates a pull-tab
  • 16 indicates a latching pawl
  • 17 indicates a plate spring
  • 18 indicates a cover.
  • the slider S 2 is constituted by disposing the pull-tab 12 and the latching pawl 16 on the slider body 11 , fixing the plate spring 17 onto a top part of the slider body 11 , and fixing the cover 18 onto the top part of the slider body 11 .
  • an end part of the latching pawl 16 is pushed downward by application of force from the plate spring 17 and hence bites in between elements, not shown, thus stopping downward movement of the slider S 2 .
  • the latching pawl-possessing spring 13 of the slider S 1 and at least the plate spring 17 of the slider S 2 , are made of the stainless steel suitable for use with a needle detector of the present invention.
  • the latching pawl 16 and the cover 18 may be made of the stainless steel suitable for use with a needle detector of the present invention, and moreover sliders suitable for use with a needle detector of the present invention can also be provided by making the latching pawl-possessing spring 13 and the plate spring 17 be made of the stainless steel suitable for use with a needle detector, and manufacturing the slider body 11 , the latching pawl 16 , the cover 18 and the pull-tab 12 from brass, red brass or the like.
  • a slide fastener suitable for use with a needle detector of the present invention can be provided by making the slider have a constitution as described above, and making the elements 3 , the top stop 4 and the bottom stop 5 be made of the stainless steel suitable for use with a needle detector, or else brass, red brass or the like.
  • buttons B is used with a meaning that includes ornamental buttons B 1 to B 3 shown in FIGS. 7 to 9 , a fastening button B 4 shown in FIG. 10, and snap buttons SB 1 , 2 and 3 shown in FIGS. 11 to 13 .
  • front surface member means a member that is generally disposed on the outer surface side of cloth
  • base member means a member that is generally disposed on the reverse surface side of cloth.
  • buttons B [0059] Following are detailed descriptions of each type of button B.
  • FIG. 7 shows an ornamental button B 1 that is mounted, for example, at the edge of a jeans pocket.
  • the ornamental button B 1 comprises a connecting member 21 , a covering member 22 , and an attaching member 23 .
  • the button B 1 is mounted on cloth 20 by fixing the covering member 22 to a base part of the connecting member 21 (the connecting member 21 and the covering member 22 together constitute a base member), piercing a shaft of the connecting member 21 through the cloth 20 , and further passing the shaft of the connecting member 21 through the attaching member 23 (front surface member), and then expanding the tip of the shaft of the connecting member 21 .
  • An ornamental button B 2 of FIG. 8 differs from the ornamental button B 1 of FIG. 7 in that the shaft of the connecting member 21 is expanded inside the attaching member 23 , and is concealed. Other than this, the ornamental button B 2 of FIG. 8 is like the ornamental button B 1 of FIG. 7.
  • the attaching member 23 which is generally exposed to the outer surface side, is made of the stainless steel suitable for use with a needle detector of the present invention, considering that the attaching member 23 must be able to deform for fixing by caulking and insusceptible to discoloration, degeneration and corrosion.
  • the covering member 22 and the connecting member 21 may be made of the stainless steel suitable for use with a needle detector of the present invention, and moreover ornamental buttons suitable for use with a needle detector can also be provided by manufacturing the covering member 22 and the connecting member 21 from brass, red brass or the like.
  • FIG. 9 shows an ornamental button B 3 that is used on a jacket or the like.
  • the ornamental button B 3 comprises an attaching member 23 (front surface member) and a base part member 24 (base member).
  • the button B 3 is mounted on cloth 20 by disposing the base member 24 on the reverse surface of the cloth 20 , piercing the attaching member 23 through the cloth 20 , passing the attaching member 23 through the rear surface of the base part member 24 , and fixing the attaching member 23 to the base part member 24 by caulking.
  • the attaching member 23 which is generally exposed to the outer surface side, is made of the stainless steel suitable for use with a needle detector of the present invention, considering that the attaching member 23 must be deformed for fixing by caulking and insusceptible to discoloration, degeneration and corrosion.
  • the base member 24 may be made of the stainless steel suitable for use with a needle detector of the present invention, and moreover a ornamental button suitable for use with a needle detector can also be provided by manufacturing the base part member 24 from brass, red brass or the like.
  • FIG. 10 shows a fastening button B 4 that is used on clothing or the like and that is fastened by passing a top part, where the button is enlarged, through an attaching hole formed in cloth 20 on the other side.
  • the fastening button B 4 comprises a connecting member 21 , a covering member 22 , an attaching member 23 , an ornamental member 25 , and a supporting member 26 .
  • the button B 4 is mounted on the cloth by fixing the covering member 22 to a base part of the connecting member 21 (the connecting member 21 and the covering member 22 together constitute a base member), piercing a shaft of the connecting member 21 through the cloth 20 , passing the shaft of the connecting member 21 through the attaching member 23 , and expanding the shaft of the connecting member 21 , thus engaging the attaching member 23 , which has the supporting member 26 therein and fixed inside, and the ornamental member 25 (the attaching member 23 , the ornamental member 25 and the supporting member 26 together constitute a front surface member).
  • the attaching member 23 which is exposed to the outer surface side, is made of the stainless steel suitable for use with a needle detector of the present invention, considering that the attaching member 23 must be able to deform for the attachment and insusceptible to discoloration, degeneration and corrosion, and/or the ornamental member 25 , which is generally exposed to the outer surface side, is made of the stainless steel suitable for use with a needle detector of the present invention, considering that the ornamental member 25 must be able to deform for the attachment and insusceptible to discoloration, degeneration and corrosion.
  • the connecting member 21 , the covering member 22 , and the supporting member 26 may be made of the stainless steel suitable for use with a needle detector of the present invention, and moreover a fastening button suitable for use with a needle detector can also be provided by manufacturing the connecting member 21 , the covering member 22 , and the supporting member 26 from brass, red brass or the like.
  • FIG. 11 is a sectional view showing a snap button SB 1 out of the snap buttons SB to which the present invention is applied;
  • the snap button SB 1 comprises a female button 31 and a male button 32 .
  • the female button 31 comprises a female member 33 (base member) in which is formed a recessed part 33 a having on the inner peripheral surface thereof an elastic part with which the male button 32 , described below, engages, and a female fixing member 35 (front surface member) that is pierced through cloth 20 , thus fixing the female member 33 .
  • the male button 32 comprises a male member 34 (front surface member) having a bulging head part 34 a that engages with the elastic part of the female member 33 , and a male fixing member 36 (base member) that is pierced through cloth 20 , thus fixing the male member 34 .
  • FIG. 12 is a sectional view showing another example of a snap button SB; as with the snap button SB 1 described above, the snap button SB 2 comprises a female button 31 and a male button 32 .
  • the female button 31 comprises a covering member 37 , a female fixing member 35 that is fitted into the covering member 37 , thus preventing deformation of the covering member 37 , and is pierced through cloth 20 , thus fixing the covering member 37 and a female member 33 , described below, together via the cloth 20 (the covering member 37 and the female fixing member 35 together constitute a front surface member), the female member 33 in which is formed a recessed part 33 a inside which the male button 32 , described below, is housed, and an elastic spring 38 that is disposed inside the recessed part 33 a of the female member 33 and engages with the male button 32 , described below (the female member 33 and the spring 38 together constitute a base member).
  • the male button 32 comprises a male member 34 (front surface member) having a bulging head part 34 a that engages with the elastic spring 38 disposed inside the recessed part 33 a of the female member 33 , and a male fixing member 36 (base member) that is pierced through cloth 20 , thus fixing the male member 34 .
  • FIG. 13 is a sectional view showing yet another example of a snap button SB; as with the snap buttons SB 1 and SB 2 described above, the snap button SB 3 comprises a female button 31 and a male button 32 .
  • the female button 31 differs from that of the snap button SB 2 in that, whereas the spring 38 of the snap button SB 2 has a partially cut out ring shape, the snap button SB 3 uses a spring 38 of the form shown in FIG. 13 and the female member 33 has a form matching this, but is otherwise similar to that of the snap button SB 2 .
  • the male button 32 is similar to that of the snap button SB 1 .
  • the female member 33 is made of the stainless steel suitable for use with a needle detector of the present invention.
  • the male member 34 , the female and male fixing members 35 and 36 , and the covering member 37 may be made of the stainless steel suitable for use with a needle detector of the present invention, and moreover snap buttons suitable for use with a needle detector of the present invention can also be provided by making the female member 33 be made of the stainless steel suitable for use with a needle detector of the present invention, and manufacturing the male member 34 , the female and male fixing members 35 and 36 , and the covering member 37 from brass, red brass or the like.
  • the female fixing member 35 of the snap button SB 1 , and the covering member 37 of the snap buttons SB 2 and SB 3 are made of the stainless steel suitable for use with a needle detector of the present invention.
  • Test materials made of stainless steels of the present invention as shown in Table 1 were manufactured as follows. Moreover, test materials of comparative examples were also manufactured in the same way.
  • each of the prescribed compositions shown in Table 1 was weighed out. 30 kg of each composition was melted in an ordinary manner using a high-frequency induction melting furnace, and cast into an ingot having a thickness of 10 mm and a width of 120 mm. Then, each ingot was subjected to solution treatment, cold rolling to 3 mm in thickness, intermediate annealing, cold rolling to 1.5 mm in thickness and final annealing. The thus obtained material had a size of 120 mm ⁇ 300 mm. Cold rolling was then further carried out to effect a rolling reduction ratio of 60%, and the material thus obtained was taken as the test material.
  • the magnetic permeability was measured in a 1 kOe magnetic field using a magnetic balance Shimadzu MB-3. The results are shown in Table 2. From Table 2, it can be seen that for the test materials of the present invention, the magnetic permeability; is extremely (not more than 1.005).
  • the magnetization was measured.
  • the magnetization was measured for each test material using an alternating gradient force magnetometer (AGFM; model AFGM 2900-04C); a prescribed amount of the test sample was placed in the magnetic field of the electromagnet, a magnetic field of 18 kOe was generated from the electromagnet, and the magnetization was measured by changing the magnetic field. The measurement was carried out at a measurement speed of 50 msec/point.
  • AGFM alternating gradient force magnetometer
  • the magnetization is extremely low at 550 memu/g or less even in a strong magnetic field of 18 kOe.
  • Example 1 1.003 412 65 3 10
  • Example 2 1.002 422 67 3 10
  • Example 3 1.002 409 64 3 10
  • Example 4 1.003 403 60 3 10
  • Example 5 1.004 432 78 3 10
  • Example 6 1.003 415 68 3 10
  • Example 7 1.002 419 69 3 10
  • Example 8 1.003 414 68 3 10
  • Example 9 1.003 420 69 3 10
  • Example 10 1.002 431 72 3 10
  • Example 11 1.003 423 71 3 10
  • Example 12 1.002 435 79 3 10
  • Example 13 1.003 435 75 3 10
  • Example 14 1.003 428 73 3 10
  • Example 15 1.003 416 68 3 10
  • Example 16 1.003 545 86 3 10
  • Example 17 1.003 524 83 3 10
  • Example 18 1.003 490 82 3 10
  • Example 19 1.003 515 84
  • female members 33 , female fixing members 35 and covering members 37 were manufactured from each of the test materials obtained, and female buttons 31 of the snap button SB 2 shown in FIG. 12 were manufactured. Note that rolling was carried out as described earlier such that the rolling reduction ratio was 60% before manufacturing the female buttons 31 of the snap button SB 2 .
  • the female buttons 31 manufactured were fed into a needle detector, and a study was carried out into the number of female buttons 31 in the presence of which specified broken needles-could be detected.
  • the value of 0.8 mm-diameter iron ball in Table 2 is the number of female buttons 31 in the presence of which a broken needle equivalent to a 0.8 mm-diameter iron ball could be detected, and the value of 1.2 mm-diameter iron ball in Table 2 is similarly the number of female buttons 31 in the presence of which a broken needle equivalent to a 1.2 mm-diameter iron ball could be detected.
  • the stainless steel suitable for use with a needle detector of the present invention detection of whether broken needles have got into clothing or the like during sewing can be carried out adequately.
  • the slide fastener and buttons of the present invention there can be provided a slide fastener and buttons that satisfy properties required for the uses thereof, and that can cope with needle detectors in that detection of whether broken needles have got into clothing or the like during sewing can be carried out adequately.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Slide Fasteners (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Adornments (AREA)
  • Sewing Machines And Sewing (AREA)
US10/395,596 2002-03-25 2003-03-21 Stainless steel, slide fastener and buttons suitable for use with needle detector Abandoned US20030177617A1 (en)

Applications Claiming Priority (2)

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JP2002083048A JP3947679B2 (ja) 2002-03-25 2002-03-25 検針器対応ステンレス鋼及びスライドファスナー並びにボタン
JP2002-83048 2002-03-25

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EP (1) EP1354974A1 (zh)
JP (1) JP3947679B2 (zh)
KR (1) KR100552082B1 (zh)
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TW (1) TWI229134B (zh)

Cited By (8)

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US20120003116A1 (en) * 2009-03-27 2012-01-05 Sumitomo Metal Industries, Ltd. Austenitic stainless steel
US8453301B1 (en) * 2010-07-22 2013-06-04 Patty McCoy Zipper pull tab retention device
US20140013548A1 (en) * 2011-03-24 2014-01-16 Ykk Corporation Slide Fastener and Slider with Simple Locking Mechanism
US8703047B2 (en) 2009-02-27 2014-04-22 Nippon Yakin Kogyo Co., Ltd. Clothing ornament made from a high-Mn austenitic stainless steel
US20160304983A1 (en) * 2011-03-28 2016-10-20 Nippon Steel & Sumitomo Metal Corporation High-strength austenitic stainless steel for high-pressure hydrogen gas
RU2607971C1 (ru) * 2013-04-09 2017-01-11 Икк Корпорейшн Элемент застежки-молнии и сплав для его изготовления
CN109380820A (zh) * 2017-08-07 2019-02-26 中传企业股份有限公司 拉链头组合结构及其弹性件
US20220010392A1 (en) * 2018-11-12 2022-01-13 Posco Nonmagnetic austenitic stainless steel and manufacturing method therefor

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JP2008161246A (ja) 2006-12-27 2008-07-17 Ykk Corp ばね性を備えた部材及びこれを使用した製品
JP5826757B2 (ja) * 2010-09-10 2015-12-02 Ykk株式会社 スライドファスナー用スライダー
CN102672077A (zh) * 2012-05-26 2012-09-19 广东辉丰科技股份有限公司 一种不锈钢牙拉链及其制备方法
CN103284413A (zh) * 2013-05-24 2013-09-11 江苏宏达拉链制造有限公司 一种防腐蚀性拉链
CN105324507B (zh) * 2013-06-28 2017-10-10 Ykk株式会社 拉链用金属部件、采用该拉链用金属部件的拉链、以及拉链用金属部件的制造方法
JP6393343B2 (ja) * 2014-12-26 2018-09-19 Ykk株式会社 ライトゴールド色を有する金属製ファスナー部材及びそれを備えたファスナー

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US4391022A (en) * 1980-03-04 1983-07-05 Yoshida Kogyo K. K. Automatic lock slider for slide fasteners
US4329173A (en) * 1980-03-31 1982-05-11 Carondelet Foundry Company Alloy resistant to corrosion
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8703047B2 (en) 2009-02-27 2014-04-22 Nippon Yakin Kogyo Co., Ltd. Clothing ornament made from a high-Mn austenitic stainless steel
US9528173B2 (en) 2009-02-27 2016-12-27 Nippon Yakin Kogyo Co., Ltd. High-Mn austenitic stainless steel and a producing method of high-Mn austenitic stainless steel sheet
US20120003116A1 (en) * 2009-03-27 2012-01-05 Sumitomo Metal Industries, Ltd. Austenitic stainless steel
US8453301B1 (en) * 2010-07-22 2013-06-04 Patty McCoy Zipper pull tab retention device
US20140013548A1 (en) * 2011-03-24 2014-01-16 Ykk Corporation Slide Fastener and Slider with Simple Locking Mechanism
US9480311B2 (en) * 2011-03-24 2016-11-01 Ykk Corporation Slide fastener with simple locking mechanism
US20160304983A1 (en) * 2011-03-28 2016-10-20 Nippon Steel & Sumitomo Metal Corporation High-strength austenitic stainless steel for high-pressure hydrogen gas
US10260125B2 (en) * 2011-03-28 2019-04-16 Nippon Steel & Sumitomo Metal Corporation High-strength austenitic stainless steel for high-pressure hydrogen gas
US10266909B2 (en) 2011-03-28 2019-04-23 Nippon Steel & Sumitomo Metal Corporation High-strength austenitic stainless steel for high-pressure hydrogen gas
RU2607971C1 (ru) * 2013-04-09 2017-01-11 Икк Корпорейшн Элемент застежки-молнии и сплав для его изготовления
CN109380820A (zh) * 2017-08-07 2019-02-26 中传企业股份有限公司 拉链头组合结构及其弹性件
US20220010392A1 (en) * 2018-11-12 2022-01-13 Posco Nonmagnetic austenitic stainless steel and manufacturing method therefor

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CN1261609C (zh) 2006-06-28
KR20030077391A (ko) 2003-10-01
CN1446934A (zh) 2003-10-08
EP1354974A1 (en) 2003-10-22
TW200305652A (en) 2003-11-01
KR100552082B1 (ko) 2006-02-20
JP2003277890A (ja) 2003-10-02
HK1056581A1 (zh) 2004-02-20
JP3947679B2 (ja) 2007-07-25

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