| 摘要 |
A swivel joint comprising a stud having an upper cylindrical stem portion, a lower cylindrical stem portion and a substantially spherical member disposed between said upper and lower cylindrical stem portions, an annular upper bearing member and an annular lower bearing member, and a socket receiving therein and supporting said upper and lower bearing members. Said annular upper bearing member and an annular lower bearing member receive therein and support an upper half of said substantially spherical member and said upper cylindrical stem portion contiguous therewith and a lower half of said substantially cylindrical member and said lower cylindrical stem portion contiguous therewith respectively to act as a bearing. |
