Patent ID: 8667982
Filing Date: 2014-03-11
Classification: F16K,Y10T

Abstract:
1. An air valve device for an inflatable article which has an inflatable chamber and an opening fluidly communicated with the inflatable chamber, comprising: a valve seat which is adapted to be fitted into the opening, and which has a tubular wall that surrounds and extends along an axis and that defines an accommodation space, and an abutment mount that extends from said tubular wall radially and towards the axis to form a seat body, said seat body being configured to divide said accommodation space into an inflating port distal from the inflatable chamber and a conduit proximate to the inflatable chamber, and having a communicating port to fluidly communicate said inflating port with said conduit, said valve seat further having a hub member which is connected to said tubular wall through said seat body, and which defines therein a mounting hole that extends along the axis to communicate said inflating port with said conduit; a valve disc unit which is disposed in said conduit and which is movable relative to said abutment mount along the axis between a closed position, where said valve disc unit is in air-tight engagement with said seat body to shut off said communicating port, and an opened position, where said valve disc unit is disengaged from said seat body to permit air to flow through said communicating port to enter into or escape from the inflatable chamber, said valve disc unit having a plunger having a connected end which is connected to said central region, and a rod portion which extends from said connected end along the axis through said hub portion and said mounting hole and which terminates at a head end that is disposed in said inflating port such that movement of said plunger along the axis relative to said abutment mount results in movement of said valve disc unit between the closed and opened positions; and a biasing member disposed to bias said head end to move away from said seat body so as to permit said valve disc unit to be held in the closed position; wherein said valve disc has an annular slot which is disposed between said central and padded regions and which extends along the axis, said hub portion of said retaining cap extending along the axis from said surrounding web portion to be press-fitted in said annular slot.