Patent ID: 7866961
Filing Date: 2011-01-11
Classification: F04B,F04C,Y10T

Abstract:
1. A compressor comprising: a cylinder body which forms a cylinder chamber; an end-face member which is mounted on an end face of the cylinder body and which has a discharge hole communicating with the cylinder chamber and a through hole; a discharge valve for opening and closing the discharge hole of the end-face member; a valve holding member which sandwiches the discharge valve in cooperation with the end-face member and which has a screw hole formed in a body portion of the valve holding member; and a fixing bolt having a head portion, the head portion of the fixing bolt being placed on one side of the end-face member on which the cylinder body is provided, and the fixing bolt being inserted into the through hole of the end-face member so as to be screwed with the screw hole of the valve holding member, in which state the discharge valve is sandwiched by the end-face member and the valve holding member, the end-face member having an end face with a depressed portion disposed therein to house the discharge valve and the valve holding member, with the depressed portion and the body portion of the valve holding member being shaped to limit rotation of the body portion relative to the end face member when the valve holding member is disposed in the depressed portion prior to mounting the fixing bolt, the depressed portion having one side face and an other side face which are generally opposed to each other, the one side face and the other side face being located on both sides of respective sites around the fixing bolt in the discharge valve and the valve holding member so as to allow a positioning of the respective sites, respectively, the discharge valve and the valve holding member being disposed between the one side face and the other side face with clearance therebetween, when the fixing bolt is rotated in a direction in which the fixing bolt is tightened to the screw hole of the valve holding member from the cylinder body side of the end-face member and the valve holding member integrally rotates along with the fixing bolt, a part of the body portion of the valve holding member between the discharge hole and an axis of the fixing bolt makes contact with the one side face while the part of the body portion of the valve holding member between the discharge hole and the axis of the fixing bolt moves away from the other side face, a length of the one side face from the through hole toward the discharge hole being longer than a length of the other side face from the through hole toward the discharge hole, the discharge valve having a cover portion which goes into or out of contact with the discharge hole, and when the fixing bolt is rotated in the direction of being tightened from the cylinder body side of the end-face member,