| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sliding device superior in the sliding characteristics compared with the conventional ones. SOLUTION: This semispherical shoe 1 is provided with a semispherical face 1A and a flat end face 1B. The semispherical face 1A is formed with a sliding portion 1a sliding with a semispherical recess 2B of a piston 2 and a lead-in portion 1b positioned toward a top side (recess 1C side) than the sliding portion 1a. The spherical diameter D2 of the lead-in portion 1b is set larger than the spherical diameter D1 of the sliding portion 1b. This constitution forms a clearance 8 between the lead-in portion 1b and the semispherical recess of the piston 2. Lubricating oil stored in a space 4 between the semispherical recess 2B and the recess 1C of the semispherical shoe 1 is lead into the sliding portion 1a via the clearance 8. This constitution can provide a sliding device superior in the sliding characteristics compared with the conventional ones.</p> |
