| 摘要 |
A violin practice reminder includes restriction rods, fixtures, touch rods and a warning unit. The restriction rods, the touch rods and the warning unit are disposed on the fixtures. The restriction rods and the touch rods are made of electric material. Each of the restriction rods has two sections inserted into a sleeve to adjust the length of the restriction rod. The fixtures are secured to a violin. Each of the touch rods is a spiral shape to sleeve onto the restriction rod with washers at respective ends to insulate the touch rod from the restriction rod. The warning unit includes a buzzer and a switch. The switch is connected to the touch rods and the restriction rods, respectively. When the touch rods are in touch with the restriction rods, the switch is turned on to trigger the buzzer to buzz.
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