Title:
ELECTRIC LINEAR ACTUATOR AND ELECTRIC BRAKE DEVICE
Document Type and Number:
Japanese Patent JP2008039169
Kind Code:
A
Abstract:
To prevent the drop-out of a linear member circumferentially fixed to a spiral groove on the outer diameter surface of a rotor shaft or the inner diameter surface of an outer ring member.
A carrier 4 supporting planetary rollers 5 includes a partial cylindrical part divided to three circular parts 4b axially protruded between planetary rollers 5, and a guide face 6 for guiding inner diameter-side upper surface of a spiral protruding part formed of a linear member 3b fixed to the spiral groove 3a on the inner diameter surface of the outer ring member 3 is formed on the outer diameter surface of each circular part 4b. By this, the drop-out of the linear member 3b fixed to the spiral groove 3a can be prevented.
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Inventors:
YAMAZAKI TATSUYA
EGUCHI MASAAKI
EGUCHI MASAAKI
Application Number:
JP2006218428A
Publication Date:
February 21, 2008
Filing Date:
August 10, 2006
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16D65/18; F16H13/08; F16H25/20
Attorney, Agent or Firm:
Bunji Kamada
Torii Kazuhisa
Takayoshi Tagawa
Higashio Masahiro
Torii Kazuhisa
Takayoshi Tagawa
Higashio Masahiro