Fluid cylinder

A fluid cylinder comprising:

• a cylinder body;
• and
• a shaft member supported within the cylinder body,
• wherein the shaft member is capable of stroking in an axial direction while rotating by means of a fluid,
• wherein the shaft member is provided with rotating blades, and
• wherein the shaft member having the rotating blades rotates by means of the fluid blowing against the rotating blades.

A fluid cylinder comprising:

• a cylinder body;
• and
• a shaft member supported within the cylinder body,
• wherein the shaft member is capable of stroking in an axial direction while rotating by means of a fluid,
• wherein the shaft member is provided with a rotary drive body,
• wherein the cylinder body is provided with a position sensor which is capable of measuring a position of the shaft member in an axial direction, and which is positioned, in a non-contacting state, with respect to the shaft member,
• wherein the shaft member is allowed to do a stroke thereof, in a forward direction, in a manner that the shaft member protrudes from the cylinder body,
• wherein the shaft member is provided with a hole which is formed in the shaft member along the central axis thereof and is open at a rear end face of the shaft member, and
• wherein the position sensor, which is in a non-contacting state with respect to the rotary drive body, is provided in the hole.