Restriction component

Abstract

There is provided a restriction component with good slidability. A restriction component is provided on a back surface of a movable scroll that slides relative to a fixed scroll while rotating eccentrically, and restricts a rotation of the movable scroll while allowing the eccentric rotation of the movable scroll, and the restriction component is provided with a dynamic pressure generation groove configured for generating a dynamic pressure on the back surface of the movable scroll.

1 . A restriction component that is provided on a back surface of a movable scroll that is configured to slide relative to a fixed scroll while rotating eccentrically, and that restricts a rotation of the movable scroll while allowing the eccentric rotation of the movable scroll,
 wherein the restriction component is provided with a dynamic pressure generation groove configured for generating a dynamic pressure at a location facing the movable scroll.   
     
     
         2 . The restriction component according to  claim 1 ,
 wherein the restriction component is comprised of a pin inserted into a pocket provided in the movable scroll, and a rotating body rotatably attached to the pin, and   the dynamic pressure generation groove is formed in the rotating body.   
     
     
         3 . The restriction component according to  claim 2 ,
 wherein the rotating body is eccentrically attached to the pin.   
     
     
         4 . The restriction component according to  claim 2 ,
 wherein one end of the dynamic pressure generation groove is configured to communicate with an outside of the rotating body.   
     
     
         5 . The restriction component according to  claim 2 ,
 wherein the dynamic pressure generation groove has an arcuate shape.   
     
     
         6 . The restriction component according to  claim 2   4 ,
 wherein the dynamic pressure generation groove is provided in the rotating body to face a bottom surface of the pocket.   
     
     
         7 . The restriction component according to  claim 3 ,
 wherein the dynamic pressure generation groove is provided in the rotating body to face a bottom surface of the pocket.   
     
     
         8 . The restriction component according to  claim 4 ,
 wherein the dynamic pressure generation groove is provided in the rotating body to face a bottom surface of the pocket.