WO2002022288A3 - A toothed sprocket and method of forming same - Google Patents

A toothed sprocket and method of forming same Download PDF

Info

Publication number
WO2002022288A3
WO2002022288A3 PCT/US2001/028127 US0128127W WO0222288A3 WO 2002022288 A3 WO2002022288 A3 WO 2002022288A3 US 0128127 W US0128127 W US 0128127W WO 0222288 A3 WO0222288 A3 WO 0222288A3
Authority
WO
WIPO (PCT)
Prior art keywords
die
sprocket
toothed sprocket
forming same
toothed
Prior art date
Application number
PCT/US2001/028127
Other languages
French (fr)
Other versions
WO2002022288A2 (en
Inventor
Yahya Hodjat
Original Assignee
Gates Corp
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
Application filed by Gates Corp filed Critical Gates Corp
Priority to AU2001287145A priority Critical patent/AU2001287145A1/en
Publication of WO2002022288A2 publication Critical patent/WO2002022288A2/en
Publication of WO2002022288A3 publication Critical patent/WO2002022288A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Forging (AREA)
  • Gears, Cams (AREA)

Abstract

The invention comprises a toothed sprocket and a method of forming same. The sprocket is formed from a pre-form (P), deep drawn cup. The sprocket is formed in a press using a stepped die (10) that forms the teeth or cogs in a gradual incremental movement of the die (10). Each step of the die (10) comprises a coplanar series of protrusions (15, 16, 17, 18) that cooperatively engage longitudinal splines. Each die step comprises a smaller radius as compared to the preceding step, when viewed as one progresses from the die face to the die base. The arrangement of the die steps causes the preform to be plastically formed into a toothed sprocket by the sequential application of each progressively smaller diameter step during the forming process.
PCT/US2001/028127 2000-09-15 2001-09-07 A toothed sprocket and method of forming same WO2002022288A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001287145A AU2001287145A1 (en) 2000-09-15 2001-09-07 A toothed sprocket and method of forming same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66269800A 2000-09-15 2000-09-15
US09/662,698 2000-09-15

Publications (2)

Publication Number Publication Date
WO2002022288A2 WO2002022288A2 (en) 2002-03-21
WO2002022288A3 true WO2002022288A3 (en) 2002-07-25

Family

ID=24658813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/028127 WO2002022288A2 (en) 2000-09-15 2001-09-07 A toothed sprocket and method of forming same

Country Status (2)

Country Link
AU (1) AU2001287145A1 (en)
WO (1) WO2002022288A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672126B2 (en) * 2002-03-25 2004-01-06 The Gates Corporation Stepped cam die
US20040139774A1 (en) * 2003-01-22 2004-07-22 Yahya Hodjat Method of forming a sprocket
WO2012091808A1 (en) * 2010-12-29 2012-07-05 Magna Powertrain Of America, Inc. Beveloid planetary gear drive for transfer case or transmission
US20130199044A1 (en) * 2012-02-02 2013-08-08 Yahya Hodjat Method of Forming a Sprocket

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796106A (en) * 1971-06-29 1974-03-12 Borg Warner Method and apparatus for making sprockets and/or gears
US4876876A (en) * 1987-10-27 1989-10-31 Mazda Motor Corporation Dies for forging gear-shaped part made of sheet metal
US5105697A (en) * 1990-11-15 1992-04-21 Gruber Siegfried F Multiple stage shaving die

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796106A (en) * 1971-06-29 1974-03-12 Borg Warner Method and apparatus for making sprockets and/or gears
US4876876A (en) * 1987-10-27 1989-10-31 Mazda Motor Corporation Dies for forging gear-shaped part made of sheet metal
US5105697A (en) * 1990-11-15 1992-04-21 Gruber Siegfried F Multiple stage shaving die

Also Published As

Publication number Publication date
WO2002022288A2 (en) 2002-03-21
AU2001287145A1 (en) 2002-03-26

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