Title:
TRACK ROLLER DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/125761
Kind Code:
A1
Abstract:
Provided is a track roller device such that it is possible to achieve both increase in the life of a seal and improvement in ease of assembly of a device. A lower track roller device (10) is configured by being provided with a roller (11) which rolls in contact with a track (8), a roller shaft (12) which rotatably supports the roller (11), and a seal (14) which is installed in an annular space (26) between the roller (11) and the roller shaft (12). The seal (14) is configured in such a way that an inner peripheral seal section (30a) disposed on the inner peripheral side and an outer peripheral seal section (30b) disposed on the outer peripheral side are combined together in such a way as to be capable of being in sliding contact with each other. The lower track roller device (10) is also provided with a collar (15) which is mounted on the roller shaft (12). The collar (15) comprises a boss section (62) over which the seal (14) is fitted, and a flange section (15b) which abuts the outer end of the seal (14).
Inventors:
HISAMATSU Kenichi (Osaka Plant 3-1-1, Ueno, Hirakata-sh, Osaka 11, 〒5731011, JP)
Application Number:
JP2011/058066
Publication Date:
October 13, 2011
Filing Date:
March 30, 2011
Export Citation:
Assignee:
HISAMATSU Kenichi (Osaka Plant 3-1-1, Ueno, Hirakata-sh, Osaka 11, 〒5731011, JP)
久松 健一 (〒11 大阪府枚方市上野三丁目１番１号 株式会社小松製作所大阪工場内 Osaka, 〒5731011, JP)
久松 健一 (〒11 大阪府枚方市上野三丁目１番１号 株式会社小松製作所大阪工場内 Osaka, 〒5731011, JP)
International Classes:
B62D55/15; B62D55/088; B62D55/104
Attorney, Agent or Firm:
INOUE Tsutomu (Hommachi-heisei Bldg. 4F, 2-12 Itachibori 1-chome, Nishi-ku, Osaka-sh, Osaka 12, 〒5500012, JP)
Claims:
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