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Patent Searching and Data


Title:
SEAL STRUCTURE FOR ENDLESS TRACK DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/147079
Kind Code:
A1
Abstract:
Provided is a seal structure for insulating a gap between a fixed housing and a rotating casing for driving an endless track of an endless-track vehicle. A seal ring received in an annular first receiving groove provided in the fixed housing, and a first O-ring for urging the seal ring in the direction of pushing out from the first receiving groove are accommodated. A slide ring having higher rigidity than the seal ring, and a second O-ring for urging the slide ring toward the seal ring are accommodated in a second receiving groove provided in the rotating casing and opening opposite the first receiving groove. By this configuration, penetration of foreign matter such as mud into a gear chamber is prevented without significant frictional loss.

Inventors:
HIROTA YOSHIKAZU (JP)
IMOTO CHIKASHI (JP)
ITO KAZUMI (JP)
SUGIMOTO JUNICHIRO (JP)
NOGUCHI EISHIN (JP)
KAWABATA KAORI (JP)
Application Number:
PCT/JP2013/059371
Publication Date:
October 03, 2013
Filing Date:
March 28, 2013
Export Citation:
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Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
F16J15/34; B62D55/088; B62D55/125; F16J15/18
Foreign References:
JPS5566881U1980-05-08
JPS4967061U1974-06-12
JP2001248735A2001-09-14
Other References:
See also references of EP 2787256A4
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
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