Question

What is the internal mechanism for producing the wobbling head movement in the toy shown below? Assume that the toy needs to be mass manufactured.

• A. A
• B. B
• C. C
• D. D

Hint:

For motion mechanism problems, consider the desired movement type and ease of mass production.

Answer 1

The Correct Option is A

Step 1: Understand the wobbling mechanism.
- The head movement requires flexibility and oscillation to produce the wobbling effect. A spring provides this motion efficiently.
Step 2: Analyze each option.
- Spring: Allows smooth wobbling motion and is easy to manufacture. Correct.
- Torsion bar: Not suitable for wobbling motion. Incorrect.
- Pivot mechanism: Provides rotational movement but not wobbling. Incorrect.
- Ball joint: Suitable for rotation but not wobbling. Incorrect.
Step 3: Conclude the answer.
The internal mechanism for wobbling is: A - Spring.