Multi-stage cylinder

Abstract

Abstract PURPOSE:To provide a telescopic cylinder unit that comprises a multiple number of cylinders, and is compact and short, capable of being extended to about the length of the cylinder by times of the number of cylinders allowing to be installed in a small space. CONSTITUTION:When the air is blown into from a port 18 with a port 14 opened and a port 19 closed, an inner cylinder 12, a piston 15 and a rod 16 are extended until a flange 12a comes into contact with the flange of an outer cylinder 11a. When the port 18 is closed and the air is pressurized, the inner cylinder 12 returns. When the port 19 is opened and the port 14 closed, and the air is pressurized from the port 18, only the piston 15 is operated. When the air is pressurized from the port 18 and the ports 14, 19 are opened, the piston 15 moves until it comes into contact with the inner surface of the rear side wall of the inner cylinder 12, and the rod 16 is completely extended from the inner cylinder 12 to its maximum length. On the contrary, the cylinder contracts to the shortest by pressurizing and expelling the air.

Inventors

• 👤 Hideo Ito
• 👤 伊藤　英夫

Bibliographic Details