Suction-Generating Toy Drive Assembly for Balanced Steering
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Solution Overview
Problem
Suction toys face challenges with weight balance and steering precision due to asymmetric weight distribution and unoffset moments, leading to inconsistent steering responses when navigating walls and ceilings.
Innovation Solution
A chassis design with a motorized fan for suction, pivotable limb elements, and a drive assembly that offsets weight moments by positioning drive motors and wheels symmetrically about the center of gravity, combined with skid steering for balanced maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If drive motors and wheels are positioned asymmetrically to enable steering, then the toy can navigate surfaces, but steering responsiveness becomes inconsistent between left and right directions
Solution Approach 1:
The patent applies asymmetry in two contrasting ways: (1) The drive assembly is positioned asymmetrically relative to the center of gravity to enable steering capability, with the drive motor and primary drive wheel located on one side of the longitudinal axis. (2) An auxiliary wheel is added on the opposite side to create a balancing effect, compensating for the asymmetric weight distribution. This dual application of asymmetry allows the toy to achieve both steering responsiveness and weight balance.
Solution Approach 2:
The auxiliary wheel functions as a counterweight mechanism. By positioning the auxiliary wheel on the side opposite the drive assembly, its weight creates a balancing moment that offsets the moment created by the drive motor and primary drive wheel. This counterbalancing ensures that the toy exhibits consistent steering characteristics in both left and right directions, resolving the weight balance issue while maintaining steering capability.
2Weight of moving object
If the toy body is made lightweight to reduce mass, then the suction required to hold the toy is reduced, but the toy becomes more fragile and lacks auxiliary elements
Solution Approach 1:
The toy body is segmented into functional components: a lightweight chassis for the suction and drive mechanisms, and separate auxiliary elements (such as a removable body shell or protective cover) that can be added when needed. This segmentation allows the core functional elements to remain lightweight while providing structural protection through separate, non-weight-critical components.
Solution Approach 2:
Different parts of the toy have different quality characteristics. The chassis and drive assembly are made lightweight to minimize mass and suction requirements, while the body shell or protective elements are made more robust to provide structural strength. This local differentiation of material properties allows the toy to achieve both low weight and high reliability in different locations.
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 design ensures consistent steering responsiveness and stable adhesion to surfaces, enhancing the toy's ability to navigate walls and ceilings with precision and stability.
Implementation Method 1
a motorized fan element that is fluidly coupled to the at least one opening and that is structured to draw air into the at least one opening for producing a low-pressure region thereabout
Data Source
AI summary
There is provided a suction-generating toy, comprising a chassis, a fan, a first limb element for pivoting between first and second rotational positions, a first drive motor, a first primary drive wheel, a first auxiliary wheel that is rotatably connected to the first drive motor, and a first linkage element that includes a first end that is connected to an eccentric portion of the first auxiliary wheel such that as the first auxiliary wheel is driven to rotate by the first drive motor, the first end of the first linkage element moves through a first path of motion, and a second end that is coupled to the first limb element such that as the first end moves through the first path of motion, the first linkage element drives the first limb element to pivot between the first and second rotational positions.