Title:
ROUNDED MEMBER FOR CHAIN AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP3585420
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rounded member for a chain and a method of manufacturing the rounded member, preventing the occurrence of a wavy phenomenon at the end face of the rounded member, impeding the leakage of a lubricant proceeding in the axial direction of the rounded member and improving oil retainability at a rotatory-sliding part.
SOLUTION: This rounded member 4 for the chain is provided with a plurality of blind holes 2 for absorbing plastic deformation, at pushing through of a circular die, formed zigzag on at least one of the inner peripheral surface and the outer peripheral surface, and a plurality of recessed parts formed on any imaginary straight line in the axial direction of the rounded member by the blind holes 2.
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Inventors:
Kenro Nakagawa
Yukihiko Maeda
Atsuhiro Tamiya
Takeshi Kimura
Takeshi Kondo
Yukihiko Maeda
Atsuhiro Tamiya
Takeshi Kimura
Takeshi Kondo
Application Number:
JP2000119815A
Publication Date:
November 04, 2004
Filing Date:
April 20, 2000
Export Citation:
Assignee:
Tsubakimoto Chain Co., Ltd.
International Classes:
B21C37/06; B21L9/00; B21L9/04; B23P15/00; F16C33/10; F16G13/02; F16G13/06; B21B1/22; B21H7/00; B21H8/00; (IPC1-7): F16G13/06; B21L9/00; F16G13/02
Domestic Patent References:
| JP53032251A | ||||
| JP2963652B2 | ||||
| JP10238598A | ||||
| JP58014538U |
Attorney, Agent or Firm:
Takashi Tsuno
Atsuo Kawai
Kazuhiro Higuchi
Atsuo Kawai
Kazuhiro Higuchi