| 摘要 |
A children's musical book includes an electronic audio circuit which is able to generate music or any other type of sound. It includes a back cover (3) of considerable thickness in which there is a hollow (6) of dimensions that make it suitable for holding the electronic audio circuit (7) together with its keypad (8), battery (9), loudspeaker (10) and wiring (11), while both surfaces of the back cover (3) are covered by sheets of cardboard (15), so that the circuit occupies the minimum space and is perfectly protected within the back cover. Additionally, the back cover, cover and inside pages are composed of a central core of foam rubber (4, 4′), which is covered on both sides by the said sheets of cardboard (5), the free edges of which are tucked in respecting the edge of the foam rubber core that are likewise free, these latter being those on which manual contact takes place during normal usage of the book.
|
