Self-Propelled Toy Pull-Back Mechanism With Light and Sound
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Solution Overview
Problem
Existing self-propelled toys with pull-back mechanisms lack interactive features such as sound and light effects, and do not efficiently convert stored mechanical potential energy into kinetic energy for dynamic movement.
Innovation Solution
A self-propelled toy with a pull-back mechanism that includes a motor drive/driven gear system, a controller with a microcontroller, and LEDs or sound transducers, which activate when the toy is primed and released, converting stored mechanical energy into kinetic energy for movement and emitting light or sound signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pull-back mechanism is used to store mechanical potential energy, then the toy can be self-propelled, but the toy lacks interactive features such as sound and light effects
Solution Approach 1:
The patent combines the pull-back mechanism with electronic components (LEDs, sound transducers, microcontroller) into a single integrated drive and control module. This merging allows the toy to have both self-propelled functionality and interactive features without requiring separate independent systems, thereby increasing versatility while managing complexity through integration.
Solution Approach 2:
The drive and control module serves multiple functions: it provides the mechanical drive system through the pull-back mechanism, controls electronic components (LEDs, sound transducers), processes sensor inputs, and manages power distribution. This multi-functionality allows a single module to enable both self-propelled motion and interactive features, resolving the contradiction between versatility and complexity.
2Adaptability or versatility
If electronic components are added to provide sound and light effects, then user engagement is enhanced, but the device complexity increases
Solution Approach 1:
The microcontroller, sensor, LED, and sound transducer are merged into a single drive and control module that is mechanically integrated with the pull-back mechanism. This consolidation reduces the number of separate components and wiring harnesses, thereby managing complexity while providing enhanced interactive features.
Solution Approach 2:
The system uses the mechanical energy from the pull-back mechanism itself to trigger the electronic effects. The sensing element detects the mechanical state (primed/go state) and automatically activates the appropriate electronic components without requiring separate power switches or complex control interfaces, simplifying the overall system.
3Adaptability or versatility
If the toy body is made larger to improve realism, then the toy appears more realistic, but the pull-back mechanism becomes less efficient
Solution Approach 1:
The patent divides the toy into two distinct parts: a separate drive and control module containing the pull-back mechanism, and the toy body. This segmentation allows the mechanism to remain compact and efficient while the toy body can be sized for realism. The modular design decouples the energy storage function from the visual representation, resolving the contradiction between size and efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The toy effectively converts mechanical potential energy into kinetic energy for movement while providing interactive light and sound effects, enhancing user engagement and realism.
Implementation Method 1
upon pulling back the toy body with the wheels touching the ground, the pull-back mechanism generates and stores mechanical potential energy, which upon release of the toy body, translates to kinetic energy to drive the toy in a direction opposite that of the pull-back direction
Implementation Method 2
the at least one LED is powered to generate a light signal
Implementation Method 3
a sound transducer electrically connected to the controller that emits a sound signal when in the primed state and the go state
Data Source
AI summary
A self-propelled toy includes a toy body, a drive and control module, including a housing, an axle with wheels arranged on opposing ends and an axel drive/driven gear attached to the drive and control module within the housing. A pull-back mechanism arranged in, on or otherwise attached and mechanically connected to the drive and control module Upon pulling back the toy body while maintaining the wheels touching a ground like surface, the pull-back mechanism generates and stores mechanical potential energy in a spring/tensioning motor mechanism, which upon release of the toy body, translates to kinetic energy and with the wheels touching the ground like surface drives the toy body in a direction opposite that of the pull-back direction.