Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
  • A43B13/18—Resilient soles
  • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
  • A43B13/206—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with tubes or pipes or tubular shaped cushioning members
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
  • A43B13/18—Resilient soles
  • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
  • A43B13/203—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with a pump or valve
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B3/00—Footwear characterised by the shape or the use
  • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
  • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
  • A43B7/1455—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties
  • A43B7/147—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties for sick or disabled persons, e.g. persons having osteoarthritis or diabetes
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
  • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot

Definitions

• a SOLE INCLUDING A SYSTEM OF BLISTERS AND DEVICES FOR
• This invention refers to a plurality of plastic blisters located into a sole which can be deflated one by one rotating a pushing roller whose horn presses one by one the push button of the pneumatic valves inserted into the tubes of the plastic blisters.
• the present invention refers to a previous patent filed by the same inventor titled "Plastic bellows inserted into soles" registered at the Industrial Property of the Ministry for Economic Services in Malta, with the number 1389 on the date of October, 21, 1999 and consequently filed in the U.S.A. with the number
• the present invention has the aim to enlarge and to improve the essential concepts reached with the previous cited patent solving the problems found with the use of the bellows and to facilitate its use for diabetics.
• Fig. 1 Is the sole of the previous patent showing the bellows and the position of the pneumatic valves;
• Fig. 2 Shows the exploded view of the new sole incorporating the whole system;
• Fig. 3 Shows the pushing roller where its horn presses the push button
• Fig. 4 Is the plantar view with all the elements of the system
• Fig. 5 Shows the pushing roller and the valve in the closed position
• Fig. 6 Is the same but in the opened position
• Fig. 9 Is the exploded view of the system moved by an engine
• Fig. 10 Shows the application of two blisters into sport shoes. DESCRIPTION OF THE INVENTION
• Fig.l shows the essential components of the previous cited patent , where the plastic bellows (la-lb-2a-2b) inserted into the midsole (4) of the sole (5) may be inflated or deflated pressing with the foot the area where the user wants to move the air and simultaneously touching the button (6) of the pneumatic valve (3) .
• the aim of this new patent is to avoid this double movement which for some people, especially diabetics, is too complicate.
• Diabetics generally are aged people and with some of problems in their movements, especially if obese.
• the present invention intends to solve this very negative aspect adopting a rotating system which makes the process of deflating the blisters easier.
• plastic blisters are essentially air chambers with a tube which comes out and can be produced with the following processes :
• the material used for their production is a plastic material with an high elastic modulus
• the shape of the blister is similar to a leaf spring,
• the soles (50) adopted for this patent are produced with rubber, foamed polyurethane, or other materials normally used for soles which can be compressed during its normal use, evidently only in this case the blisters, lodged into the defined points, can react.
• (14-1) is the Inversion area, where the foot touches the ground internally
• (13-S) is the Supination area, where the user pushes for leaving the ground externally.
• the blisters are produced with their tube (12), internally this tube a pneumatic valve (15) is inserted. If this tube is far from the deflating system or curves, an additional pipe fitting connects the blister's tube with the valve.
• the valve (15) is composed by the following elements (Fig.5-6) : the structure has a plurality of external teeth (15a) for its grip to the internal part of the tube, internally it has the body of the push button (16) which is hold in tension by a spring (17) and, in the downward side by an o-ring (19) inserted into its channel (18) .
• Fig.5 the position of the inflated blister is shown : the horn (2) of the pushing roller (1) does not touch the push button (16) and consequently it is in the closed position : no air can circulate.
• the pushing roller (1) is a complex formed by the following parts (Fig.2-3) : its central body has a horn (2) with its concave part (3) for lodging the head of the push button (16) of the valve (15), in its centre has a hole (4) for the entering of the centring pin (6) made on the centre of the fixing element (7), the pin has a cap mushroom shaped (5) which maintains in a firm position the pushing roller but allows its rotation. On its surface in contact with the pushing roller a plurality of little semispheres are produced in order to block the rotation when the horn enters the push button.
• Fig. 8 shows the simple manual operation for deflating a blister.
• This system can work also with an engine (30- a) , in order to facilitate the use of the invented system.
• the correspondent circuit works as follows.
• a sensor (37) informs a microchip (36) that the shoe is worn and the foot is raised the microchip activates the engine for moving the pushing roller (30b) from a blister to the nearest with the same effects for the manual operation above mentioned.
• the power is supplied by a battery (35) , lodged into a hollowed space of the sole (38), which has only to move the pushing roller three-four times a day and for few millimetres.
• the pushing roller (30b) is joined to the engine (30a) through a screw (34) which joins the hole (33) of the pushing roller with the screwed pin (31) of the engine.
• This electric system does not need a switch because the sensor (37) closes the circuit when the shoe is not worn and put in motion the circuit only when the foot is raised.
• Fig. 10 shows the disposition of two blisters lodged in the plantar area but with the valve directed outside the sole, as the previous cited patent and working in the same way. This case is planned for sport shoes which do not need the system for deflating the blisters and will be produced for adjusting defects of the foot as pronation or supination .

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Citations (4)

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• 2008
  • 2008-08-28 US US12/733,332 patent/US20100199518A1/en not_active Abandoned
  • 2008-08-28 EP EP08807474A patent/EP2185020A2/de not_active Withdrawn
  • 2008-08-28 WO PCT/IB2008/053477 patent/WO2009027941A2/en active Application Filing

Patent Citations (4)

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