Title:
TRACK FRAME FOR TRACK TYPE VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/008189
Kind Code:
A1
Abstract:
The inner upper plate (18B) of an inner plate (18) which forms an idler wheel bracket (17) is tilted obliquely downward from the idler wheel (6) side toward the rising plate (18A) of the inner plate (18). The outer upper plate (19B) of an outer plate (19) is tilted obliquely downward from the idler wheel (6) side toward the rising plate (19A) of the outer plate (19). As a result, the inner plate (18) and the outer plate (19) are symmetric about the idler wheel (6) in the left-right direction. The configuration causes the cross-sectional strength of the inner plate (18) secured to a connection flange (16) and the cross-sectional strength of the outer plate (19) to be equal, so that the durability of the idler wheel bracket (17) is increased.
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Inventors:
NAMAI YOSHIO (JP)
TANABE SHINICHI (JP)
TANABE SHINICHI (JP)
Application Number:
PCT/JP2011/059007
Publication Date:
January 19, 2012
Filing Date:
April 11, 2011
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
NAMAI YOSHIO (JP)
TANABE SHINICHI (JP)
NAMAI YOSHIO (JP)
TANABE SHINICHI (JP)
International Classes:
B62D55/10; B62D55/14; B62D55/30
Domestic Patent References:
| WO2003042022A1 | 2003-05-22 |
Foreign References:
| JP2002053085A | 2002-02-19 | |||
| JPS61183784U | 1986-11-15 |
Attorney, Agent or Firm:
HIROSE KAZUHIKO (JP)
Kazuhiko Hirose (JP)
Kazuhiko Hirose (JP)
Download PDF:
Claims:
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