Patent ID: 6209226
Filing Date: 2001-04-03
Classification: A43B

Abstract:
A sole for a shoe (A) comprising:a perforated insole layer (B) provided with a series of holes and having an upper surface and a lower surface;an outer sole layer comprising:a support member layer (4, 4') having an upper surface (3, 3') and a lower surface, anda plurality of resilient hollow air chambers,said air chambers each having internally an upper hemispherically shaped portion, andsaid air chambers each defining a central upper hole (1, 1') at the top of the hemispherically shaped portion,said air chambers supporting the support member layer, and said air chambers each have a lower portion forming a tread,wherein portions of the support member layer adjacent the air chambers have a thickness defined by the support member layer upper surface and support member layer lower surface, and each air chamber has a height which extends below the lower surface of the portion of the support member layer adjacent the air chamber;a cleaning sole (C) having holes, wherein said outer sole layer is capable of being fixed to a shoe and said air chambers are capable of being deflected during walking of a user of the shoe by blowing the air contained therein into the shoe through the upper holes (1, 1') of the air chambers and the corresponding holes of the cleaning sole (C) to establish an air circulation and a real air change beneath the user's foot;wherein during a deflection under a dynamic user's weight the air chambers deform and deflect so that the reduction in their volume causes the air contained therein to be forcibly expelled through their upper hole (1, 1');wherein said air chambers are resilient such that unloading of the dynamic user's weight on the shoe causes a subsequent resilient return which causes an air suction and then a filling of the air chambers with air from the shoe; andwherein the air circulation is not limited to an expulsion and a suction of the same air to the detriment of a real air change, and the lower surface of the insole layer (B) rests on the air chambers to form a valve which causes, during the expulsion, the air pressure to push an edge of the upper holes against the insole layer (B) preventing the air from escaping sideways and forcing the same to reach the inside of the shoe and the user's foot.