IT994104B - Apparecchio per la manifattura di molle a balestra con estremita a spessore rastremato - Google Patents

Apparecchio per la manifattura di molle a balestra con estremita a spessore rastremato

Info

Publication number
IT994104B
IT994104B IT51538/73A IT5153873A IT994104B IT 994104 B IT994104 B IT 994104B IT 51538/73 A IT51538/73 A IT 51538/73A IT 5153873 A IT5153873 A IT 5153873A IT 994104 B IT994104 B IT 994104B
Authority
IT
Italy
Prior art keywords
crossbow
springs
manufacture
equipment
tapered thickness
Prior art date
Application number
IT51538/73A
Other languages
English (en)
Original Assignee
Nhk Spring Co Ltd
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
Priority claimed from JP47072876A external-priority patent/JPS5214822B2/ja
Priority claimed from JP7881373A external-priority patent/JPS5311959B2/ja
Application filed by Nhk Spring Co Ltd filed Critical Nhk Spring Co Ltd
Application granted granted Critical
Publication of IT994104B publication Critical patent/IT994104B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007—Taper rolling, e.g. leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B60G2206/428—Leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8109—Shaping by rolling
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49609—Spring making
    • Y10T29/49611—Spring making for vehicle or clutch

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Springs (AREA)
  • Metal Rolling (AREA)
  • Wire Processing (AREA)
IT51538/73A 1972-07-20 1973-07-19 Apparecchio per la manifattura di molle a balestra con estremita a spessore rastremato IT994104B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP47072876A JPS5214822B2 (it) 1972-07-20 1972-07-20
JP7881373A JPS5311959B2 (it) 1973-07-12 1973-07-12

Publications (1)

Publication Number Publication Date
IT994104B true IT994104B (it) 1975-10-20

Family

ID=26414012

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51538/73A IT994104B (it) 1972-07-20 1973-07-19 Apparecchio per la manifattura di molle a balestra con estremita a spessore rastremato

Country Status (5)

Country Link
US (1) US3820373A (it)
DE (1) DE2336459A1 (it)
FR (1) FR2193680B1 (it)
GB (1) GB1389626A (it)
IT (1) IT994104B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283930A (en) * 1977-12-28 1981-08-18 Aichi Steel Works Limited Roller-dies-processing method and apparatus
US4248072A (en) * 1978-07-25 1981-02-03 Aichi Steel Works, Limited Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation
AU512528B1 (en) * 1979-06-15 1980-10-16 Nhk Spring Co. Ltd. Taper spring manufacture
GB2235147B (en) * 1987-08-04 1991-09-04 Bruss Polt I Method and apparatus for making blanks of a profile varying lengthwise.
WO1989000899A1 (en) * 1987-08-04 1989-02-09 Belorussky Politekhnichesky Institut Method and device for making workpieces with a variable longitudinal profile
US5001918A (en) * 1987-11-04 1991-03-26 Stepanenko Alexandr V Method and apparatus for making blanks of a profile varying lengthwise
US5875672A (en) * 1993-02-11 1999-03-02 Fourie; Eugene Method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies
US5590556A (en) * 1993-02-11 1997-01-07 Fourie; Eugene Apparatus for the manufacture of a thin metallic strip
DE19704300B4 (de) * 1997-02-06 2008-07-10 Benteler Ag Verfahren zur Herstellung von Platinen mit unterschiedlichen Dicken
US6532638B2 (en) * 1998-04-15 2003-03-18 Robert Bosch Gmbh Method of making flat blade windshield wipers for a motor vehicle with curved flat blade
DE19846900C2 (de) 1998-10-12 2000-08-10 Thyssenkrupp Stahl Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes für abzulängende Tailored Blanks
DE10041280C2 (de) * 2000-08-22 2003-03-06 Muhr & Bender Kg Verfahren und Vorrichtung zum flexiblen Walzen eines Metallbandes
AU2002951062A0 (en) * 2002-08-29 2002-09-12 Nukorc Pty Ltd An improved synthetic closure and a method of forming thereof
DE10246164B4 (de) * 2002-10-02 2014-03-20 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen von Strukturbauteilen
CN102218662B (zh) * 2011-06-13 2012-09-26 浙江恒立数控科技股份有限公司 一种金属薄板剪切生产线
CN103056600A (zh) * 2011-10-22 2013-04-24 东风钟祥汽车弹簧有限公司 变截面钢板弹簧利用轧制余热进行多工序加工的方法
US9573432B2 (en) 2013-10-01 2017-02-21 Hendrickson Usa, L.L.C. Leaf spring and method of manufacture thereof having sections with different levels of through hardness
CN106678218A (zh) * 2016-07-15 2017-05-17 安庆安簧汽车零部件有限公司 一片式钢板弹簧及其制造工艺
CN107470916A (zh) * 2017-08-03 2017-12-15 常州常发制冷科技有限公司 钢板横剪生产线及应用其的钢板横剪工艺
CN108746353B (zh) * 2018-05-18 2020-04-28 山东汽车弹簧厂淄博有限公司 簧片端部整形系统及整形方法

Also Published As

Publication number Publication date
US3820373A (en) 1974-06-28
GB1389626A (en) 1975-04-03
FR2193680A1 (it) 1974-02-22
DE2336459A1 (de) 1974-01-31
FR2193680B1 (it) 1977-05-13

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