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Title:
ROLLER LIFTER
Document Type and Number:
Japanese Patent JP2010164154
Kind Code:
A
Abstract:

To provide a roller lifter which is capable of efficiently supplying a lubricating oil to a needle bearing provided in a roller and achieving smooth rotation of the roller, and a roller structure with excellent durability and high reliability.

The roller lifter comprises a roller 54, a shaft 53 and a lifter body 51 having a needle bearing 54n. The lifter body 51 has one sidewall 51w1, other sidewall 51w2, and lubricating oil introduction grooves 51m1 and 51m2, which introduce the lubricating oil from the outside of the lifter body 51 to the needle bearing 51n, on the inner wall surface 51n1 of the one sidewall 51w1 and the inner wall surface 51n2 of the other sidewall 51w2, respectively. The lubricating oil introduction grooves 51m1 and 51m2 extend approximately parallel to the tangent line TL of the pitch circle PCD so that one ends of the lubricating oil introduction grooves 51m1 and 51m2 are open to the outside of the lifter body 51, while the other ends thereof are positioned radially outside of the pitch circles PCD of multiple needle bearings 54n.

COPYRIGHT: (C)2010,JPO&INPIT


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Inventors:
USUI TAKASHI
TANAKA YOSHIHIRO
Application Number:
JP2009007801A
Publication Date:
July 29, 2010
Filing Date:
January 16, 2009
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H53/06; F02M59/10; F02M59/44
Domestic Patent References:
JPS6342804U
JPH0399227U
JPS62185965U
Attorney, Agent or Firm:
有我 軍一郎
有我 栄一郎