Semispherical shoe for swash plate compressor and swash plate compressor

A semispherical shoe for a swash plate compressor so constructed that inside a housing where a refrigerant is present, a rotational motion of a swash plate mounted perpendicularly and obliquely on a rotational shaft by directly fixing said swash plate thereto or indirectly fixing said swash plate thereto through a coupling member to said rotational shaft is converted into a reciprocating motion of a piston through a semispherical shoe to be subjected to sliding contact with said swash plate to compress and expand said refrigerant,

• wherein said semispherical shoe is composed of a base material consisting of a metallic member, and a resin layer is formed on a surface of a planar part to be subjected to sliding contact with said swash plate and on a surface of a spherical part to be subjected to sliding contact with said piston by injection-molding a resin composition;
• and
• said resin layer of said planar part and said resin layer of said spherical part are integral with each other, and at least one portion of said base material is not covered with said resin layer and is exposed,
• wherein (1) a hollow part forming a concave portion in a direction from a spherical part side of said semispherical shoe or a planar part side thereof is formed at a central axis portion of said base material or (2) a hollow part penetrating through said spherical part side and said planar part side is formed at said central axis portion of said base material, and one portion of said hollow part is filled with said resin layer.