System for measuring the correct size of shoes

Abstract

A system for measuring the correct size of the shoes is formed by a sensor ( 1 ) located at the frontal tip of the shoe, at the level of the big toe or the longer toe of the foot, so that when the toe touches the sensor, it turns on a preferably bright signal consisting of a led ( 2 ). In this way, it will be possible in any moment to verify if the size of the shoe is correct, which is particularly important for children who hardly say when the shoe does no more fit the size of the foot.

1 ) System for measuring the correct size of the shoe for the foot wearing it, with a sensor, a led or other sound or visual signals and an electric circuit, characterized in that it comprises: 
 a sensor ( 1 ) to find the position of the big toe or the longer toe, located at the frontal tip of the insole;    a led ( 2 ), or other sound or visual signal to signal the contact between the big toe or the longer toe and the sensor, which turns on when said toe activates the sensor, located inside the insole itself;    an electric circuit ( 4 ) to connect the sensor with the led, or other sound or visual signalling system, powered by a battery ( 3 ), said electric circuit and battery located inside the insole itself.    
     
     
         2 ) System according to  claim 1  characterized in that the whole system, comprising battery, led, sensor and connections, is included inside an insole inserted into the shoe.  
     
     
         3 ) Insole to be inserted into a shoe, according to  claim 1 , characterized in that it comprises a led, a battery and a sensor connected to each other, in order to signal when the big toe of the longer toe is too close to the upper at the tip of the shoe; in this case, the toe activates the sensor turning on the led, which means that the shoe is too short.  
     
     
         4 ) System according to  claim 1  characterized in that the sensor is placed at the tip of the shoe'insole in the point where the touch of the big toe or the longer toe is wrong and proves that the shoe is too short. In this way, if said toe touches the sensor, this will signal the wrong position.  
     
     
         5 ) System according to  claim 1  characterized in that the sensor is placed just beyond the position that allows the big toe or the longer toe, during perambulation, to move forwards of about 1 cm, therefore in a position very close to the shoe's upper. When touching the sensor, the big toe, or the longer toe, is in the “dangerous zone”, less then 1 cm far from the upper, so that the sensor is activated and immediately signals the shoe is too short by means of the led.  
     
     
         6 ) System according to  claim 1  characterized in that the sensor is placed at the level of the big toe or the longer toe, about 1 cm far from the upper, i.e. the minimum space for a correct perambulation.  
     
     
         7 ) System according to  claim 1  characterized in that the signalling system is placed at the heel or elsewhere, so as not to damage the beauty of the shoe, and signals when the big toe or the longer toe is about 1 cm far for the tip of the shoe, brightening.  
     
     
         8 ) System according to  claim 1  characterized in that the signal emitted after the activation of the sensor by the toe may be sound or visual, and consists of a led with a light that can be seen form the outside of the shoe, in order to externally signal when it's too short.  
     
     
         9 ) System according to  claim 1  characterized in that the battery and the led are placed inside th sole, while the sensor and the relative connections are applied under the insole.