Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CRANKSHAFT, METHOD FOR MANUFACTURING CRANKSHAFT, AND DEVICE FOR MANUFACTURING CRANKSHAFT
Document Type and Number:
WIPO Patent Application WO/2012/140737
Kind Code:
A1
Abstract:
[Problem] To provide a crankshaft that has a simple configuration and a structure that can be manufactured easily in a stable manner. [Solution] A crankshaft (100) comprises: a material (1) configured from a series of journals (J), webs (W), and pins (P) that include a counterweight installation part (S); and a counterweight member (cw). The counterweight member (cw) has an annular part (50) formed in the proximal end thereof. The material (1) is inserted through the annular part (50), the annular part (50) is placed in the counterweight installation part (S), and the material (1 or 10) is eccentrically upset, whereby the journals (J), webs (W), and pins (P) are formed. A counterweight (CW) is configured by fixing the annular part (50) and the counterweight installation part (S) between the pins (P, P).

Inventors:
MAEDA OSAMU (JP)
Application Number:
PCT/JP2011/059081
Publication Date:
October 18, 2012
Filing Date:
April 12, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA MOTOR CO LTD (JP)
MAEDA OSAMU (JP)
International Classes:
F16C3/10; B21K1/08
Foreign References:
JPH044343A1992-01-08
JP2010065754A2010-03-25
JP2011069301A2011-04-07
JPH01293934A1989-11-27
Attorney, Agent or Firm:
HANABUSA, Tsuneo et al. (JP)
Sepal Tsuneo (JP)
Download PDF:
Claims: