Sport shoe with pneumatic inflating device

Claim 1

Sports shoe with a sole which is provided with air chambers serving to accept air at a positive pressure and a foot-operated pneumatic inflating device connected thereto and arranged under an area under a part of the sole to be loaded by a convex region of the foot and with a chamber body as well as a chamber roof associated with the sole parts of the shoe delimits a compression chamber which is connected via an inlet opening as well as an inlet valve to the outside atmosphere and via an outlet opening as well as an outlet valve to said chambers, characterized in that the inflating device is an integral unit which includes the chamber body, the chamber roof, the inlet valve and the outlet valve, the unit being inserted in a cut-out in the sole of the shoe, further characterized in that the compression chamber is formed as a dished bowl conformed to fit the convex contour of the region of the foot loading it and in that the inlet opening as well as the outlet opening are arranged in the central region of the chamber, the oulet valve having a valve body formed as a thin flexible disc positioned under the outlet opening, the disc being received in a cavity in said unit with an underlying spring block, and the inlet valve comprising a valve lamella which rests against and covers the inlet opening.