| 摘要 |
<p>PURPOSE: To provide a reservoir structure that makes the form of a piston easily manufacturable and also the extent of durability in a sealing member improvable. CONSTITUTION: In this reservoir structure equipped with a piston 110 installed in a cylinder 100 and a sealing member 12 installed in a sliding part lying between the piston 110 and this cylinder 100, the piston 110 is formed into a simple bottomed cylindrical shape by means of press forming, while an diametrally expanded part 18 is formed in the cylinder 100, and thereby the sealing member 12 is installed in this diametrally expanded part 18.</p> |
