JPS6345204U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a diagram of the origin state of a two-stage cylinder according to an embodiment of the present invention, Fig. 2 is a diagram of a 1-step feed state, Fig. 3 is a diagram of a 2-step feed state, and Fig. 4 is a diagram of a 3-stage cylinder according to an embodiment of the present invention. FIG. 5 is a diagram showing the origin state of the cylinder, FIG. 5 is a diagram showing the one-step feeding state, FIG. 6 is a diagram showing the two-step feeding state, and FIG. 7 is a diagram showing the three-step feeding state. 1...Cylinder 1, 2...Cylinder 2, 3...Piston 3, 4...Piston 4, 5...Cylinder 5, 6...Cylinder 6, 7...Cylinder 7, 8...Piston 8, 9
... Piston 9, 10... Piston 10, 01... Outer diameter of piston 3, 8, 9, 02... Piston 4, 10
Outer diameter of L ₁ ... Stroke of piston 3, L ₂ ... Stroke of piston 4, L 3 ... (L ₂ - _{L 1} ), L ₄ ... Stroke of piston 8, L ₅ ... Stroke of piston 9, _{L 6 ...}
Stroke of piston 10, L ₇ ... (L ₅ - L ₄ ), L
₈ ...( _L6 - _L5 ), _F1 ...Piston 3, 8, 9
_F2 ... Pushing force of the pistons 4 and 10, P... Pressure applied to the piston, A... Pressure medium, O... Pressure discharge, a, b, c, d, e, f, g, h, i,
j... Gas or liquid inlet/outlet.

Claims (1)

[Scope of utility model registration request] In a cylinder that consists of a plurality of cylinders with different diameters and a plurality of pistons with different diameters that move inside the cylinders, and the pistons move by driving pressure (liquid pressure or gas pressure), one or more cylinders or pistons have different diameters, and the pistons 1. A multi-stage cylinder with different diameters, characterized in that one or both ends of the cylinder are in contact with the end surfaces of other pistons, the pistons can move independently, and the pistons can be positioned and held without an external holding mechanism.