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Patent Searching and Data


Title:
ROLLER FOR CRAWLER-TYPE TRAVELING DEVICE, CRAWLER-TYPE TRAVELING DEVICE AND WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/217993
Kind Code:
A1
Abstract:
A shaft (21) has a recessed portion (21ea) for accumulating a cooling medium on an outer circumferential surface (21aa). A roller (22a) is rotatable with respect to the outer circumferential surface (21aa) of the shaft (21). A radial sliding bearing (23aa) supports the roller (22a) rotatably with respect to the outer circumferential surface (21aa) of the shaft (21). A floating seal (26a) has a rotating-side member (26aR) supported by the roller (22a), and a fixed-side member (26aF) that slides with the rotating-side member (26aR). The recessed portion (21ea) faces both a sliding portion of the rotating side member (26aR) and the fixed side member (26aF) of the floating seal (26a) and the radial sliding bearing (23aa) in the radial direction of the shaft (21).

Inventors:
TANIGUCHI MASAHIKO (JP)
KITAI NORIYUKI (JP)
MAEDA KAZUO (JP)
Application Number:
PCT/JP2020/015817
Publication Date:
October 29, 2020
Filing Date:
April 08, 2020
Export Citation:
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Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B62D55/06; B62D55/14
Foreign References:
JPH01173089U1989-12-07
JPS5356641U1978-05-15
JPS5023942Y11975-07-18
JP2004276696A2004-10-07
CN203020436U2013-06-26
JPS5088736A1975-07-16
CN205499101U2016-08-24
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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