Patent Number: 6,308,431

Title: Air chuck with measuring function

Abstract: A pair of jaw components 7a and 7b positioned on both sides of a casing 1 are attached to both the tips of a pair of parallel piston rods 6a and 6b which synchronously extend and contract in opposite directions by an action of an air pressure and the tips of a pair of guide rods 13a and 13b which synchronously extend and contract in opposite directions by a rack-and-pinion mechanism. By forming a magnetic scale 18 on a side face of one of the guide rods, 13b, the guide rod 13a is also used as a part of a dimension measuring mechanism. A sensor unit 20 for reading the magnetic scale 18 is attached to the casing 1.

Inventors: Takanashi; Seiji (Ibaraki, JP), Hagiwara; Katsumi (Ibaraki, JP), Kanda; Kouichirou (Ibaraki, JP)

Assignee: SMC Corporation

International Classification: B23Q 17/00 (20060101); B25B 1/18 (20060101); B25B 1/00 (20060101); B25B 5/06 (20060101); B25B 5/16 (20060101); B25B 5/00 (20060101); B25J 15/02 (20060101); F15B 15/14 (20060101); F15B 15/00 (20060101); F15B 15/28 (20060101); G01B 005/00 ()

Expiration Date: 10/30/2018