THRUST WASHER

WIPO Patent Application WO/2020/129265

A1

Provided is a thrust washer with which a sliding load can be reduced.　In a thrust washer 20, a front surface and rear surface of a ring-form section 21 are provided with sliding surfaces 26 that slide against other members, an oil groove 25 which is recessed from at least one of the sliding surfaces 26 of the front surface and rear surface and into which lubricating oil enters is also provided, an opening section 27 that is recessed further than the sliding surfaces 26 and that enables lubricating oil to enter from an insertion hole 22 side is present in the oil groove 25 in an inner peripheral end of the ring-form section 21, an outer peripheral end of the ring-form section 21 of at least one oil groove 25 is provided with an oil-stopping wall 28 that divides the oil groove 25 and the outer side of the ring-form section 21 and inhibits lubricating oil in the oil groove 25 from flowing out to the outer peripheral side of the ring-form section 21, the oil-stopping wall 28 is provided to a position that along the thickness direction is approximately the same position as the sliding surface 26, and the sliding area ratio of the ring-form section relative to a projected surface in a plan view is within the range 60-85%.

IKEDA MASAKI (JP)
HAMANAKA SHUICHIROU (JP)

PCT/JP2018/048553

June 25, 2020

December 28, 2018

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TPR CO LTD (JP)

F16C17/04

JP2004293684A	2004-10-21
JP2007016931A	2007-01-25
JP3098749U	2004-03-11
JPH1182487A	1999-03-26
US4007974A	1977-02-15
JPS405060Y1	1965-02-13

IAT WORLD PATENT LAW FIRM (JP)

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