Title:
TRAVELING DEVICE FOR CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/147138
Kind Code:
A1
Abstract:
A labyrinth (32) is provided in the gap (22) between the stationary end surface (13E) of a stationary housing (13) and the rotating end surface (15C) of a rotating housing (15). The labyrinth (32) comprises a stationary recess (13F), a stationary fitting protrusion (13G), a rotating fitting protrusion (15D), and a rotating recess (15E). The stationary recess (13F) and the rotating recess (15E) are respectively provided with first and second fabric-like members (33, 34) formed annularly from a fabric-like material. A grease containing space (35) filled with grease (G) is provided between the first fabric-like member (33) and the second fabric-like member (34).
Inventors:
IWANAMI TOMOHIKO (JP)
MASUDA HAYATO (JP)
MASUDA HAYATO (JP)
Application Number:
PCT/JP2018/003159
Publication Date:
August 16, 2018
Filing Date:
January 31, 2018
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
F16J15/16; B62D55/125; F16C33/78; F16C33/80; F16J15/18; F16J15/24; F16J15/447; B62D55/15
Foreign References:
| JP2005320984A | 2005-11-17 | |||
| JP2013189042A | 2013-09-26 | |||
| US20110148188A1 | 2011-06-23 | |||
| JPH0874289A | 1996-03-19 | |||
| JPH01145683U | 1989-10-06 | |||
| JP2013210071A | 2013-10-10 | |||
| JP2013210068A | 2013-10-10 |
Other References:
See also references of EP 3495700A4
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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