Title:
タペットローラ
Document Type and Number:
Japanese Patent JP4284778
Kind Code:
B2
Abstract:
In a case where crowning is provided on a contact surface of a tappet roller by the combination of, for example, two circular arcs, a logarithmic crowning is determined in which an edge load does not occur in the bearing pressure even if its inclination with respect to the cam is {fraction (5/1,000)} or thereabouts, and a crowning profile is set between two logarithmic crownings. In addition, the crowning profile is defined so as to be present between the logarithmic crownings in a case where the axial position x with the center in the direction of a bus set as an origin is at a position 0.85-fold and at a position 1.0-fold the half Le of the effective contact length, respectively.
Inventors:
Juntaro Sahara
Shinichi Natsuda
Shinichi Natsuda
Application Number:
JP26214599A
Publication Date:
June 24, 2009
Filing Date:
September 16, 1999
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F01L1/18; F01L1/08; F01L1/14; F16C13/00; F16C33/34; F16H53/06
Domestic Patent References:
| JP11030231A | ||||
| JP11141654A | ||||
| JP4095318U | ||||
| JP8109959A | ||||
| JP7102913A | ||||
| JP5089943U |
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu