Toy is joyfully device found in everyone home where small kids are present.
If we pull wire connected to doll and leave it it will move,simple electronics is used to make beautiful toy.
If we pull wire wheels of dolls will get energy pulling energy converted into mechanical energy and its connected diode it will produce light.
Few things about pull back toy
- Toy has wind up mechanism inside pull it back and release it will move
- gears and spring is made used inside the toy
- Advantage of using this toys are no batteries required.
- Two gears are made used to move the toy
- Gear ratio : when large gear rotate once small gear which is connected rotate more than once.
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| Inside view of toy |
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| Parts of pull toy |
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| Gears connected to diode |
A pull back toy is one of the most common toys available on the market. We pull it backwards and then let it go. it travels across almost the entire room before stopping . We pull it back just a few inches, but the distance traveled by the car is 8-12 feet.
A pull back toy works on the general principle of Newtons Third Law of motion. every action has equal and opposite reaction. The toy car moves forward much further than it was pulled backward. This is possible because of the gears present inside the toy.
When the toy is pulled back, it winds up an internal coil spring by engaging the motor with a clutch. when the toy is released, the spring unwinds and propels the toy forward.
Energy is stored quickly during pullback but gets released slowly during forward motion . The Winding of spring is 10 times faster than when it unwinds. This is achieved with the help of two gear trains present.
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| Dolly With pull back gears |
When we pull the wire and leave it will move forward while emitting light.
