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Patent Searching and Data


Title:
SPEED REDUCER, ROTARY DRIVE SYSTEM, AND HYDRAULIC SHOVEL
Document Type and Number:
WIPO Patent Application WO/2019/167480
Kind Code:
A1
Abstract:
A speed reducer is provided with: a transmission section (80) that rotates around an axis; an annular member (170) that has a cylindrical shape surrounding the axis and that rotates together with the transmission section (80) around the axis, said annular member (170) having formed therein an oil sump comprising a recessed groove recessed into the inner circumferential surface thereof, and a lubricating oil supply hole that extends and opens toward the radially outward side from the recessed groove; and a sliding section provided to the radially outward side of the lubricating oil supply hole of the annular member (170).

Inventors:
MINAMIURA Akira (2-3-6 Akasaka, Minato-k, Tokyo 14, 〒1078414, JP)
ISHIYAMA Masahiko (2-3-6 Akasaka, Minato-k, Tokyo 14, 〒1078414, JP)
IWAMOTO Naoyuki (2-3-6 Akasaka, Minato-k, Tokyo 14, 〒1078414, JP)
CHIBA Teiichirou (2-3-6 Akasaka, Minato-k, Tokyo 14, 〒1078414, JP)
Application Number:
JP2019/001931
Publication Date:
September 06, 2019
Filing Date:
January 22, 2019
Export Citation:
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Assignee:
KOMATSU LTD. (2-3-6, Akasaka Minato-k, Tokyo 14, 〒1078414, JP)
International Classes:
F16H57/04; E02F9/12; F16D55/40; F16D65/853; F16H1/46; F16N7/38
Foreign References:
JP2013124480A2013-06-24
JP2005008143A2005-01-13
JPS58122061U1983-08-19
JP2013174327A2013-09-05
JP2009079627A2009-04-16
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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