JPS5744438A - Manufacture of gear crank of bicycle - Google Patents

Manufacture of gear crank of bicycle

Info

Publication number
JPS5744438A
JPS5744438A JP9111581A JP9111581A JPS5744438A JP S5744438 A JPS5744438 A JP S5744438A JP 9111581 A JP9111581 A JP 9111581A JP 9111581 A JP9111581 A JP 9111581A JP S5744438 A JPS5744438 A JP S5744438A
Authority
JP
Japan
Prior art keywords
band
shaped plate
plate
numerous teeth
gear
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.)
Granted
Application number
JP9111581A
Other languages
Japanese (ja)
Other versions
JPS6159807B2 (en
Inventor
Takashi Segawa
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.)
Shimano Inc
Original Assignee
Shimano Industrial Co Ltd
Shimano Inc
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 Shimano Industrial Co Ltd, Shimano Inc filed Critical Shimano Industrial Co Ltd
Priority to JP9111581A priority Critical patent/JPS5744438A/en
Publication of JPS5744438A publication Critical patent/JPS5744438A/en
Publication of JPS6159807B2 publication Critical patent/JPS6159807B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels

Landscapes

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

Abstract

PURPOSE: To rationally conduct the trimming of gear and minimize the waste of material, by rolling up a band plate having numerous teeth into an annular form to constitute a chain gear.
CONSTITUTION: A rigid metallic plate is punched by press machine to produce a band-shaped plate of a predetermined length and numerous teeth 81 in a row on one side at the width of the band as well as a plurality of a projecting parts 86 for setting use on the other side are simultaneously constituted so that a band-shaped plate 8a can be an intermediate raw material for manufacturing a chain gear 8. In the next place, the band-shaped plate 8a is rolled up to an annular form having numerous teeth facing outwardly around its external circumference and both terminal ends of the ring are coupled with each other. Then, the annular band is fixed at fitting parts 74 located around the circumference of an adapter 7 such that a center of the roll made from band-shaped plate 8a should be exactly coincided with a center of crank shaft 1.
COPYRIGHT: (C)1982,JPO&Japio
JP9111581A 1981-06-11 1981-06-11 Manufacture of gear crank of bicycle Granted JPS5744438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9111581A JPS5744438A (en) 1981-06-11 1981-06-11 Manufacture of gear crank of bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9111581A JPS5744438A (en) 1981-06-11 1981-06-11 Manufacture of gear crank of bicycle

Publications (2)

Publication Number Publication Date
JPS5744438A true JPS5744438A (en) 1982-03-12
JPS6159807B2 JPS6159807B2 (en) 1986-12-18

Family

ID=14017512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9111581A Granted JPS5744438A (en) 1981-06-11 1981-06-11 Manufacture of gear crank of bicycle

Country Status (1)

Country Link
JP (1) JPS5744438A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129987U (en) * 1989-03-31 1990-10-26
WO1999032804A1 (en) * 1997-12-22 1999-07-01 INA Wälzlager Schaeffler oHG Production of a toothed hollow cylindrical part
EP1504988A3 (en) * 2003-08-07 2006-06-28 Shimano Inc. Bicycle sprocket

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129987U (en) * 1989-03-31 1990-10-26
WO1999032804A1 (en) * 1997-12-22 1999-07-01 INA Wälzlager Schaeffler oHG Production of a toothed hollow cylindrical part
EP1504988A3 (en) * 2003-08-07 2006-06-28 Shimano Inc. Bicycle sprocket

Also Published As

Publication number Publication date
JPS6159807B2 (en) 1986-12-18

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