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1.发明公开ALLOY MATERIAL, CONTACT PROBE, AND CONNECTION TERMINAL 有权LEGIERUNGSMATERIAL，KONTAKTSONDE UND VERBINDUNGSKLEMME
公开(公告)号：EP2881479A4
公开(公告)日：2016-04-27
申请号：EP13825678
申请日：2013-08-02
发明人： ANRAKU TERUO , AINOYA MASAYUKI , KUBOTA TOMOHIRO , TOYOTAKE KOTARO , MINAMI TOMOYUKI , TAKAMURA NORITOSHI , TAKAHASHI HUMIO
CPC分类号： G01R1/073 , B01J2/00 , C12Q1/00 , C22C5/04 , C22C30/02 , G01R1/06722 , G01R3/00 , G01R31/2886 , H01L2221/00
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2.发明公开SEAMLESS STEEL PIPE, HOLLOW SPRING UTILIZING SEAMLESS STEEL PIPE, AND PROCESS FOR MANUFACTURING THE SAME 有权NAHTLOSES STAHLROHR，DAS NAHTLOSE STAHLROHR VERWENDENDE HOHLFEDER UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2145705A4
公开(公告)日：2013-04-24
申请号：EP07738603
申请日：2007-03-14
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公开(公告)号：EP2311588A4
公开(公告)日：2018-03-14
申请号：EP09805089
申请日：2009-08-10
申请人： NHK SPRING CO LTD
CPC分类号： B23B1/00 , B23B2215/64 , B23B2222/12 , B23B2222/21 , B23B2222/24 , B23B2222/68 , B23B2222/72 , B23B2222/76 , B23Q3/064 , B23Q3/065 , B23Q3/08 , Y10T428/12236 , Y10T428/12861 , Y10T428/12875
摘要： A lathe machining member is provided that, when a rare and expensive material is used as a raw material for forming a machined product, is capable of reducing waste of such material and reducing costs. For this purpose, a cylindrical core portion (3), at least a part of which is made of a noble metal alloy and which has a diameter larger than a maximum diameter of a shape obtained by lathe machining, and a hollow-cylindrical peripheral portion (2), which is made of a material different from the material of the core portion (3), are included. The core portion (3) is arranged in a hollow portion of the peripheral portion (2) with no space. The material applied to the peripheral portion (2) is a free-cutting material selected from a group of, for example, free-cutting brass, free-cutting phosphor bronze, free cutting nickel silver, and free-cutting beryllium copper. The noble metal alloy applied to the core portion (3) is, for example, alloy mainly consisting of silver (Ag), palladium (Pd), gold (Au), platinum (Pt), zinc (Zn), copper (Cu), iron (Fe), and nickel (Ni), alloy mainly consisting of palladium, silver, and copper, or alloy mainly consisting of silver, platinum, zinc, gold, and copper.
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公开(公告)号：EP2322943A4
公开(公告)日：2014-06-25
申请号：EP09805088
申请日：2009-08-10
申请人： NHK SPRING CO LTD
CPC分类号： G01R1/06722 , G01R1/07314 , H01H1/023 , H01R13/03 , H01R13/2421 , Y10T29/49204
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公开(公告)号：EP1887246A4
公开(公告)日：2009-08-26
申请号：EP06756809
申请日：2006-05-31
申请人： NHK SPRING CO LTD
发明人： TAKAMURA NORITOSHI , TENDO SATORU
摘要： A coiled spring enabling a reduction in Hertzian stress at its first winding part and undue force at its winding end part. A clearance is formed between the winding end part (11) and the first winding part (13) of a wire (3) in such a free state that a load is not applied to the coiled spring by displacing the winding end part (11) on a movable part side from the first winding part (13) of the wire (3) in the coil diameter increasing or decreasing direction. Accordingly, shot peening can be applied also between the winding end part (11) and the first winding part (13) of the wire (3). Though a stress acting on the first winding part (13) forms the synthetic stress of a torsional stress and the Hertzian stress due to contact, when the winding end part (11) with a high contact pressure is displaced in the coil diameter increasing direction, the torsional stress can be reduced by moving the contact point on the first winding part (13) side in the coil outer diameter direction. Since the clearance is formed by displacing the winding end part (11) from the first winding part (13) of the wire (3) in the coil diameter increasing or decreasing direction, even if the winding end part (11) and the first winding part (13) are repeatedly brought into contact with and separated from each other between the clearance, the acting of the undue bending stress on the winding end part (11) can be suppressed to suppress the breakage of the winding end part.
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公开(公告)号：EP2811198A4
公开(公告)日：2016-01-06
申请号：EP13742940
申请日：2013-01-30
申请人： NHK SPRING CO LTD
CPC分类号： F16F1/34 , B21D11/10 , B21D53/16 , B21F35/04 , B23K26/26 , B23K26/32 , B23K2201/32 , B23K2203/04 , B23K2203/50 , B23P15/00 , C21D6/008 , C21D9/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/18 , C22C38/34 , C22C38/38 , F16F1/027 , F16F2226/048
摘要： An inexpensive ring spring having high strength and a method for producing the same, are provided. The ring spring can be obtained, for example, by raw material preparation (step S1), bending formation (step S2), welding (step S3), and disk formation (step S4) performed in this order. The ring spring is formed to have no edge by welding two edge parts of the raw material, and has a welded metal part that is formed at the interface of the two edge parts of the raw material, and a welded heat-affected zone that is formed around the welded metal part and heated by welding, and exhibits tensile strength of 1000 MPa or more. Since the ring spring has sufficient tensile strength as a disk spring and a wave spring, quenching and tempering are not necessary, and thus production cost can be reduced. Furthermore, since the product can be prevented from being deformed due to quenching and tempering, dimensional accuracy of the product can be improved.
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7.发明公开
公开(公告)号：EP1992712A4
公开(公告)日：2011-04-27
申请号：EP07714398
申请日：2007-02-16
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8.发明公开STEEL WIRE ROD FOR HARD DRAWN SPRING, DRAWN WIRE ROD FOR HARD DRAWN SPRING AND HARD DRAWN SPRING, AND METHOD FOR PRODUCING HARD DRAWN SPRING 有权盘条冷拉弹簧，拉丝FOR硬拉弹簧和冷拉弹簧及其制造方法硬拉SPRING
公开(公告)号：EP1347072A4
公开(公告)日：2005-08-31
申请号：EP01271461
申请日：2001-12-19
发明人： IBARAKI NOBUHIKO , INADA ATSUSHI , SUDA SUMIE , TAKAMURA NORITOSHI , TENDOH SATORU , FUJIWARA TADAYOSHI , JINBO TETSUO
CPC分类号： F16F1/021 , C21D1/20 , C21D7/06 , C21D8/065 , C21D9/02 , C21D9/525 , C21D2211/009 , C22C38/04 , C22C38/34 , C22C38/46
摘要： A steel wire rod for a spring for use in producing a hard drawn spring, which comprises, in mass %, C: 0.5 % or more and less than 0.7 %, Si: 1.4 to 2.5 %, Mn: 0.5 to 1.5 %, Cr: 0.05 to 2.0 % and V: 0.05 to 0.40 %, and has the area rate Rp of a pearlite structure satisfying the following formula (1): Rp (area %) = 55 x [C] + 61 ... (1) wherein [C] represents the content (mass %) of C. A hard drawn spring produced by using the above steel wire rod exhibits the fatigue strength and resistance to setting which are comparable or superior to those of a spring produced through drawing an oil tempered steel wire rod.
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公开(公告)号：EP2688096A4
公开(公告)日：2015-04-01
申请号：EP12758031
申请日：2012-03-15
申请人： NHK SPRING CO LTD
IPC分类号： H01L23/40 , F16F1/12 , F16F1/36 , H01L23/433 , H01L23/473 , H01L25/11
CPC分类号： H01L23/40 , H01L23/4012 , H01L23/433 , H01L23/473 , H01L25/112 , H01L2924/0002 , H02M7/003 , H02M2001/327 , H01L2924/00
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10.发明公开STEEL WIRE FOR HIGH STRENGTH SPRING EXCELLENT IN WORKABILITY AND HIGH STRENGTH SPRING 有权钢丝以优异的加工性和高强度弹簧用高强度弹簧
公开(公告)号：EP1619264A4
公开(公告)日：2007-08-15
申请号：EP04723329
申请日：2004-03-25
发明人： SUDA SUMIE , IBARAKI NOBUHIKO , TAKAMURA NORITOSHI , TERAKADO NAOKI , TENDO SATORU , FUJIWARA TADAYOSHI , JINBO TETSUO
摘要： A steel wire for a spring, characterized in that it has a tempering martensite structure and comprises 0.53 to 0.68 % of C, 1.2 to 2.5 % of Si, 0.2 to 1.5 % of Mn, 1.4 to 2.5 % of Cr, 0.05 % or less of Al, and contains, as optional elements, 0.4 % or less of Ni, 0.4 % or less of V, 0.05 to 0.5 % of Mo, 0.05 to 0.5 % of Nb, and others, the balance being Fe and inevitable impurities, old austenite grains have a grain size number of 11.0 or more, and it exhibits an offset yield strength ratio (sigma0.2/sigmaB) of 0.85 or less. The steel wire is a high strength steel wire for a spring which is excellent in both of the resistance to setting and fatigue characteristics, and further excellent in workability (cold workability).
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