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Patent Searching and Data


Title:
CHAIN GUIDE AND CHAIN TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/176248
Kind Code:
A1
Abstract:
The present invention is configured so that roller bearings for guiding a timing chain while rolling are more effectively lubricated. Shaft engagement sections (25) are provided in the pair of opposing side plate sections (22) of guide bases (21) in a circular arc-like arrangement, the guide bases (21) being arranged in an opposing manner on one side of a timing chain (5) for transmitting torque. Each end of each roller shaft (31) is supported by each shaft engagement section (25). The roller shafts (31) respectively support, in a rotatable manner, roller bearings (41) for guiding the chain. Oil guide holes (26) penetrating through to the outer surfaces of the side plate sections are provided in wall surfaces of the shaft engagement sections (25) which the end surfaces of the roller shafts (31) face. Splashing oil carried up by the movement of the timing chain (5) and adhering to the outer surfaces of the side plate sections (22) is introduced into the roller bearings (41) from the oil guide holes (26).

Inventors:
KATO AKIO (JP)
OISHI SHINJI (JP)
NAKAO GORO (JP)
OKASAKA MAKOTO (JP)
TSUJIMOTO TAKASHI (JP)
Application Number:
PCT/JP2013/064467
Publication Date:
November 28, 2013
Filing Date:
May 24, 2013
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/26; F16H7/08; F16C33/66; F16H7/18; F16H57/04
Domestic Patent References:
WO2010090139A12010-08-12
Foreign References:
JP2011058552A2011-03-24
JPH0183920U1989-06-05
JPS4331780Y11968-12-24
JP2004091060A2004-03-25
Other References:
See also references of EP 2857718A4
Attorney, Agent or Firm:
KAMADA Bunji et al. (JP)
Bunji Kamata (JP)
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