| 摘要 |
PROBLEM TO BE SOLVED: To prevent the sound of a ringing alarm clock from being easily stopped. SOLUTION: The alarm clock is composed of an alarm stop button, a lid that covers the lug of an alarm hand and can be opened and closed, and a tool for opening the lid. The lid can be opened only by the tool (card) when the lid is closed once. The clock body and the lid are closed by inserting an L-shaped fitting 3 being provided on the lid into a groove 4 of the clock body where the L-shaped metal piece can be inserted. The L-shaped metal piece 3 has a spring, thus causing the fitting 3 to jump to the outside of the lid for inserting into the groove 4 for locking when the card is not inserted into the gap 5 for inserting the card. When the card is inserted into the gap 5 of the lid 2, the L-shaped metal piece 3 is pressed down for releasing the lock. |
