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US 9,435,327 B2Granted
Shoe
AssigneeTaiho Kogyo Co., Ltd.
InventorsMasaharu Hatta, Satoshi Nomura
Life of this patent
Estimating the term…
Abstract
A shoe 5 includes a spherical portion 5A in sliding contact with a sliding surface 4a that is a hemispherical concave portion of a piston 4, an end surface portion 5B in sliding contact with a swash plate 3, and a circular cylindrical portion 5C formed between the spherical portion 5A and the end surface portion 5B. Linear oil grooves 5F are formed in the outer peripheral surface of the cylindrical portion 5C.
Claims10
A shoe comprising:
- a spherical portion having a spherical surface that slides in a hemispherical concave portion of a first movable member, with neither a groove nor a concave portion being formed on the spherical surface;
- an end surface portion having a sliding surface that slides on a flat surface of a second movable member;
- a cylindrical portion formed between the spherical portion and the end surface portion, the cylindrical portion being unitary with the spherical portion and the end surface portion;
- and
- a plurality of grooves formed on an outer peripheral surface of the cylindrical portion for holding a lubricant oil, the grooves having a constant depth, a rectangular sectional shape and extending continuously from the spherical portion to the end surface portion, wherein
- the cylindrical portion does not slide in either the hemispherical concave portion of the first movable member or on the flat surface of the second movable member.
3 more elements
Dependencies are inferred from the claim text.