JP2007161337A5 - - Google Patents

Claims (6)

Consists of an upper base with a cylindrical coupling part projecting in the center and an exhaust passage in the cylinder, and a disk-shaped lower base with an exhaust hole in the center. A base that holds a part of the body from inside and outside,
A valve body located in the cylindrical coupling portion of the base and opening and closing the exhaust hole by its vertical movement;
A cylindrical pressing portion that includes an annular engaging portion that is coupled to the cylindrical coupling portion so as to be movable up and down, and whose lower end edge presses the valve body against the base and holds the exhaust hole in a closed state at a lower position thereof And an exhaust valve for a compression bag, characterized by comprising a lid body having an intake port that can communicate with the exhaust hole at the center. A plurality of horizontal protrusions project from the outer peripheral end of the valve body made of a disk-shaped elastic material, and the tip of the horizontal protrusion abuts against the inner wall of the exhaust path, so that the inner wall of the exhaust path and the valve 2. The exhaust valve for a compression bag according to claim 1, wherein a gap through which air flows is ensured between the peripheral edge of the body and the peripheral edge of the body . The cylindrical coupling portion and the annular engagement portion are a plurality of stepped guide grooves provided on the outer peripheral surface of the cylindrical coupling portion, and engagement protrusions provided on the annular engagement portion along these guide grooves. And the cylindrical coupling portion and the annular engagement portion are engaged with each other at the vertical engagement position by the rotation operation of the lid body. exhaust valves of the compression bag according to claim 1 or claim 2, characterized in that it comprises a. The exhaust valve for a compression bag according to claim 3 , wherein the guide groove is composed of an upper and lower horizontal portion and an inclined portion that continuously connects them. The exhaust valve for a compression bag according to any one of claims 1 to 4, wherein a plurality of radial protrusions are provided on the periphery of the valve body. The exhaust valve for a compression bag according to any one of claims 1 to 5, wherein an annular convex portion is provided on a peripheral portion of the exhaust hole of the lower base on which the valve body is seated.