Introduced here are some methods for connecting air cylinder piston rods to moving objects.

Methods for connecting air cylinder piston rods.

(1) Principles of connecting linear motion mechanisms.

Following two types are the most popular representatives of linear motion drive train.

	・	The rotary to linear type has a coupling that absorbs wobbles, and transmits the needed rotary to linear motion.
	・	For the linear to linear connection scheme, a Floating Joint is used to connect the air cylinder and the moving object. Play in the floating joint provides the same function of the couplings.
	・	If the air cylinder and the moving body are connected without the use of a floating joint, damages may result on the air cylinder's piston seals due to excessive direct forces applied upon the seals.

(2) Application examples of Floating Joints

[Fig. 1] shows a standard methods of a floating joint connection.

[Fig.2] illustrates the assembly of the floating joint. The floating joint is composed of the holder, nut, ring, and bolt. There is some margin between the space inside the holder and the nut.

[Fig. 3] & [Photo 1] are application examples of Flange Mount Type Floating Joints.