| 摘要 |
The inventive shoe has a pressure sensor (3) which can be activated by pressure exerted by the foot against an inside surface (4) of said shoe (1). Said pressure sensor indicates when the shoe becomes too small, causing the foot to press against the inside surface of the shoe - preferably the toe. The pressure sensor is connected to a signal emitter (8) which emits an optical and/or acoustic signal. The invention thus provides a simple means of telling when children's shoes become too small for them, so that new shoes can be bought in good time. |
