| 摘要 |
PURPOSE:To permit the perfect supply of oil onto a spherical body and a spherical seat by forming the recessed oil grooves onto the spherical seat and supplying oil onto the top edge part of the spherical body and the spherical seat. CONSTITUTION:An oil reservoir 15 is formed at the center part of a spherical seat 14. Recessed oil grooves 16 are formed radially onto the spherical seat 14. With such constitution, the oil supplied from an oil hole 9a opened onto the side surface of a spring 9 is supplied onto the spherical seat 14, generating a hydraulic pressure, by the movement of a spherical body 8, and introduced into the oil reservoir 15. Therefore, oil can be supplied perfectly onto the top edge part of the spherical body 8 and the spherical seat 14.
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