JPS56109132A - Production of center bolt of caliper brake - Google Patents

Production of center bolt of caliper brake

Info

Publication number
JPS56109132A
JPS56109132A JP1178480A JP1178480A JPS56109132A JP S56109132 A JPS56109132 A JP S56109132A JP 1178480 A JP1178480 A JP 1178480A JP 1178480 A JP1178480 A JP 1178480A JP S56109132 A JPS56109132 A JP S56109132A
Authority
JP
Japan
Prior art keywords
collar
blank material
center bolt
production
caliper brake
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.)
Pending
Application number
JP1178480A
Other languages
Japanese (ja)
Inventor
Tomoji Uchimoto
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.)
Individual
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
Application filed by Individual filed Critical Individual
Priority to JP1178480A priority Critical patent/JPS56109132A/en
Publication of JPS56109132A publication Critical patent/JPS56109132A/en
Pending legal-status Critical Current

Links

Landscapes

  • Braking Arrangements (AREA)
  • Forging (AREA)

Abstract

PURPOSE: To improve workability and durability and lower cost by forming a shaft and a collar in one body.
CONSTITUTION: A blank material A is ironed from both ends to fine one end 31, thicken the other end 32 and form a bulged part 33 in the intermediate part. Then, the bottom part 34 of the bulged part 33 is placed on an upsetting die, one end 31 is inserted into the upsetting die, and upsetting is applied simultaneously with ironing from the other end 32, whereby a blank material D consisting of the shaft consisting of the one end 36 and the other end 37, and a collar 38 is obtained. The blank material D is of a prescribed length at which it is made into a product, and since a collar 38 is formed in one body, the recesses 39, 40 of the collar 38 are made thin. On the other hand, the weight is reduced and material is decreased, whereby the cost is lowered. Screws 42a, 42b are inscribed to this blank material C and a groove 43 for detaining spring is punched, whereby a center bolt D is perfected.
COPYRIGHT: (C)1981,JPO&Japio
JP1178480A 1980-01-31 1980-01-31 Production of center bolt of caliper brake Pending JPS56109132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1178480A JPS56109132A (en) 1980-01-31 1980-01-31 Production of center bolt of caliper brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1178480A JPS56109132A (en) 1980-01-31 1980-01-31 Production of center bolt of caliper brake

Publications (1)

Publication Number Publication Date
JPS56109132A true JPS56109132A (en) 1981-08-29

Family

ID=11787564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1178480A Pending JPS56109132A (en) 1980-01-31 1980-01-31 Production of center bolt of caliper brake

Country Status (1)

Country Link
JP (1) JPS56109132A (en)

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