Insole or inner sole with pressure ventilation

Abstract

Insole or inner sole which is intended for an item of footwear and is designed in the form of a pressure-ventilation sole ( 40 a - e ) such that a flexurally elastic pressure-exerting plate ( 10, 20, 30 ) rests on a lower sole, said pressure-exerting plate being displaceable by the user's body weight, when the user is moving, into transverse profiling in the interspace between the pressure-exerting plate ( 10, 20, 30 ), which is in the vicinity of the sole of the foot, and the lower sole and displacing the contained air volume in the manner of ventilation, wherein the lower sole of the pressure-ventilation sole ( 40 a - e ) is configured in the form of a corrugated structured sole ( 1 ) from a spring steel or a comparable plastic material, the transverse profiling thereof being designed in the form of a corrugated profile and being stable, and resistant to deformation, in relation to a compressive force acting vertically on the structured sole ( 1 ), and that the pressure-exerting plate ( 10, 20, 30 ), which is in the vicinity of the sole of the foot, can be displaced into the dimensionally stable corrugation valleys ( 12 ) of the structured sole ( 1 ) in the manner of a pumping and/or compression plate.

1 . Insole or inner sole which is intended for an item of footwear and is designed in the form of a pressure-ventilation sole ( 40   a - e ) such that a flexurally elastic pressure-exerting plate ( 10 ,  20 ,  30 ) rests on a lower sole, said pressure-exerting plate being displaceable by the user's body weight, when the user is moving, into transverse profiling in the interspace between the pressure-exerting plate ( 10 ,  20 ,  30 ), which is in the vicinity of the sole of the foot, and the lower sole and displacing the contained air volume in the manner of ventilation, characterized in that the lower sole of the pressure-ventilation sole ( 40   a - e ) is configured in the form of a corrugated structured sole ( 1 ) from a spring steel or a comparable plastic material, the transverse profiling thereof being designed in the form of a corrugated profile and being stable, and resistant to deformation, in relation to a compressive force acting vertically on the structured sole ( 1 ), and that the pressure-exerting plate ( 10 ,  20 ,  30 ), which is in the vicinity of the sole of the foot, can be displaced into the dimensionally stable corrugation valleys ( 12 ) of the structured sole ( 1 ) in the manner of a pumping and/or compression plate. 
     
     
         2 . Insole or inner sole according to  claim 1 , characterized in that the respective corrugation valley ( 12 ) of the structured sole ( 1 ) forms a gutter-shaped pressure ventilated compression space ( 17 ) with the pressure-exerting plate ( 10 ,  20 ,  30 ) covering the corrugation valley ( 12 ), wherein an air or moisture circulation is provided in the longitudinal extension of said pressure ventilated compression space. 
     
     
         3 . Insole or inner sole according to  claim 2 , characterized in that the gutter-shaped compression space ( 17 ) is open on one side to the end side. 
     
     
         4 . Insole or inner sole according to  claim 2  or  3 , characterized in that the gutter-shaped compression space ( 17 ) can be ventilated and vented by means of perforations ( 9 ) in the structured sole ( 1 ). 
     
     
         5 . Insole or inner sole according to  claim 2  or  4 , characterized in that the gutter-shaped compression space ( 17 ) can be ventilated and vented by means of holes ( 16 ) in the pressure-exerting plate ( 10 ,  20 ,  30 ). 
     
     
         6 . Insole or inner sole according to  claim 1  or  5 , characterized in that the pressure-exerting plate ( 10 ) consists of a flat flexurally elastic plate which is suitable to deform itself flexibly into the corrugation valleys ( 12 ) of the structured sole ( 1 ). 
     
     
         7 . Insole or inner sole according any of  claims 1  to  6 , characterized in that the pressure-exerting plate ( 20 ) consists of a flexurally elastic plate having a corrugation structure, and that the corrugation structure ( 33 ) of the pressure-exerting plate ( 30 ) is complementary or partly complementary to the corrugation structure ( 33 ) of the structured sole ( 1 ). 
     
     
         8 . Insole or inner sole according to  claim 7 , characterized in that the corrugation valleys ( 32 ) of the corrugation structure ( 33 ) of the pressure-exerting plate ( 30 ) rests on the corrugation crests ( 11 ) of the structured sole ( 1 ), and that the corrugation crests ( 31 ) of the pressure-exerting plate ( 30 ) are opposite the corrugation valleys ( 12 ) of the structured sole ( 1 ) and form the gutter-shaped, pressure-ventilated compression space ( 17 ). 
     
     
         9 . Insole or inner sole according to  claim 7  or  8 , characterized in that the corrugation crests ( 31 ) of the pressure-exerting plate ( 30 ) are suitable to form themselves flexibly into the corrugation valleys ( 12 ) of the structured sole ( 1 ). 
     
     
         10 . Insole or inner sole according to  claim 1  or  9 , characterized in that an elastomeric coating ( 34 ) is arranged directed to the sole of the foot of the user on the top of the pressure-exerting plate ( 10 ,  20 ,  30 ), said coating being preferably formed from a memory-effect forming plastic material. 
     
     
         11 . Insole or inner sole according to one of  claims 1  to  10 , characterized in that the pressure-exerting plate ( 10 ,  20 ,  30 ) has approximately the same area of the underlying structured sole ( 1 ). 
     
     
         12 . Insole or inner sole according to any of  claims 1  to  11 , characterized in that the pressure-ventilation sole ( 40 , 40   a ,  40   b ) consisting of structured sole ( 1 ) and pressure-exerting plate ( 10 ,  20 ,  30 ) is designed as a half sole or as a full sole. 
     
     
         13 . Insole or inner sole according to any of  claims 1  to  12 , characterized in that the pressure-ventilation sole ( 40 ,  40   a ,  40   b ) can be ventilated and vented via the upper material ( 22 ) and/or the sole of an item of footwear ( 27 ). 
     
     
         14 . Insole or inner sole according to  claim 13 , characterized in that a semipermeable membrane ( 37 ) is arranged in the area of the ventilation and venting openings. 
     
     
         15 . Insole or inner sole according to any of  claims 1  to  14 , characterized in that the structured sole ( 1 ) allows a rolling movement in the longitudinal direction of the structured sole, but a deflection in a vertical direction for this purpose is prevented by the fact that it has a cross-stability and a longitudinal stability by means of the oblique arrangement of the corrugations ( 2 ) of the cross-profiling relative to the longitudinal axis. 
     
     
         16 . Insole or inner sole according to  claim 15 , characterized in that the individual corrugations ( 2 ) of the cross-profiling extend at least in the forefoot area at an angle between 70 and 85 degrees, preferably 77 degrees, to the longitudinal center line. 
     
     
         17 . Insole or inner sole according to one of  claims 1  to  16 , characterized in that at least the structured sole ( 1 ) is connected on the edge side of an elastomeric edge frame ( 44 ). 
     
     
         18 . Insole or inner sole according to  claim 17 , characterized in that the edge frame ( 44 ) in connection with the pressure-exerting plate ( 20 ,  20 ′) resting thereon forms a ventilation duct structure ( 46 ), which is connected in an air-tight manner with the ventilation ducts ( 21 ) of the pressure-ventilation sole ( 40 ,  40   a - 40   e ).