Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PROCESS OF MANUFACTURE OF INSERT COLLAR
Document Type and Number:
Japanese Patent JP2016006331
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable an insert collar provided with a plurality of long grooves in an axial direction from one end edge toward the other end edge at an outer peripheral surface of a cylinder made of a metallic member to be efficiently manufactured in the less number of manufacturing steps and further to enable a manufacturing cost thereof to be reduced.SOLUTION: A metallic plate having a predetermined thickness is punched out to a circular plate shape at the first step, a metallic plate A punched out to the circular plate shape at the second step and the third step is contracted into a cup-like member B. An axial sectional shape of a side wall at the cup-like member is formed into a convexoconcave shape in a circumferential direction thereof in the contraction process at the fourth step and at the same time concavities at the outer circumferential surface are shaped into longitudinal grooves axially extending from a bottom part thereof to a part near the top part. After the cup-shaped member B is processed with restriking at the fifth step, the bottom wall of the cup-shaped member B is punched out at the sixth step and holes are punched out and then an edge part of the cup-shaped member B is cut at the seventh step.

Inventors:
KAWAMURA AKIRA
MAEZAWA TATSUJI
Application Number:
JP2014126904A
Publication Date:
January 14, 2016
Filing Date:
June 20, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LADVIK CO LTD
International Classes:
F16B43/00; B21D53/10
Attorney, Agent or Firm:
Kazuo Sugiyama
Katsuko Iwata



 
Previous Patent: ニッケル亜鉛電池

Next Patent: CHAIN