Patent ID: 7818896
Filing Date: 2010-10-26
Classification: A43B

Abstract:
1. A sole comprising a base having a first cavity defined in a rear portion thereof, a first gasbag received in the first cavity, a second cavity defined in a front portion of the base and a second gasbag received in the second cavity, the first gasbag and the second gasbag communicating with each other by multiple windpipes, multiple through holes respectively and laterally defined in two opposite walls of the base and respectively communicating with the first cavity and the second cavity, each through hole having a check valve mounted therein, a first airtight cover mounted to the first gasbag for closing the first gasbag and a second airtight cover mounted to the second gasbag for closing the second gasbag, the first airtight cover having a blowing hole defined therein and communicating with an inner periphery of the first gasbag, the second airtight cover having multiple blowing holes defined therein and communicating with an inner periphery of the second gasbag, an insole connected to the first airtight cover before using, the insole including multiple ventilate holes defined therein and communicating with the blowing holes in the first airtight cover and the second airtight cover.