Toy Car Chassis Layout for Compact Steering and Rollover Stability
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Solution Overview
Problem
Existing remote-control toy cars, particularly small-proportion civilian sports car models, suffer from poor structural compactness due to large overall sizes resulting from assembly requirements of components.
Innovation Solution
A toy car design featuring a chassis with first and second wheels at opposite ends, driven by first and second driving members positioned at the middle body portion, and a steering mechanism using eccentric and transmission assemblies to enable turning of all wheels, minimizing overall size and improving balance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driving member and steering member are mounted at the front wheel end or rear wheel end, then the turning function can be implemented, but the overall size of the toy car becomes large and structural compactness deteriorates
Solution Approach 1:
The patent combines the driving member and steering member into a single integrated assembly mounted at the middle body portion of the chassis. This merging of functions eliminates the need for separate front/rear wheel end mounting structures, significantly reducing the overall size while maintaining both driving and turning capabilities. The integrated assembly uses a unified transmission mechanism that handles both propulsion and steering through a single structural unit.
Solution Approach 2:
The patent transitions from traditional longitudinal mounting (at front/rear wheel ends) to a transverse arrangement at the middle body portion. By repositioning the driving and steering members to the central region and utilizing vertical layering within the chassis, the design achieves compactness without sacrificing operational functionality. This dimensional reorganization allows both functions to coexist in a reduced footprint.
2Volume of moving object
If the driving member and steering member are mounted at the middle body portion, then structural compactness is improved, but the assembly complexity increases
Solution Approach 1:
The patent integrates the transmission mechanism to simultaneously handle both driving and steering functions through a unified gear system. The single integrated assembly reduces the number of separate components that would otherwise need to be assembled at front or rear wheel ends, thereby simplifying the overall assembly process despite the compact arrangement.
Solution Approach 2:
The driving member and steering member are designed as a multi-functional integrated assembly that performs both propulsion and steering operations. This universal design eliminates the need for separate specialized components for each function, reducing assembly complexity while achieving compact dimensions. The single assembly structure serves multiple purposes, simplifying the bill of materials and assembly instructions.
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 achieves compact structural layout, enhances balance and stability, reduces rollover probability, and increases adaptability to low-height sports car models, improving playability and simulation accuracy.
Implementation Method 1
a first driving member, where the first driving member is mounted at the middle body portion, and the first driving member is configured to drive the two first wheels and the two second wheels to rotate
Implementation Method 2
an eccentric member, where the eccentric member is connected to the second driving member; and a steering frame, where the steering frame is movable connected to the first end portion, the steering frame is connected to the two first wheels, and the eccentric member is rotatably connected to the steering frame and is relatively movably connected to the steering frame
Data Source
AI summary
Disclosed in embodiments of the present application is a toy car, including: a chassis, where the chassis includes a first end portion, a middle body portion and a second end portion which are arranged in a first direction; two first wheels arranged at the first end portion and spaced apart in a second direction; two second wheels arranged at the second end portion and spaced apart in the second direction; and a first driving member and a second driving member which are both mounted at the middle body portion, where the second driving member and the first driving member are arranged in the first direction and/or the second direction, and the second driving member is configured to drive the two first wheels to turn. By means of the toy car provided in the embodiments of the present application, the situation that the mass and size of the first end portion are far greater than the mass and size of the second end portion can be reduced, thereby reducing the rollover probability of the toy car during traveling. In addition, the structure of the present application has the characteristic of high adaptability, and can be adapted to various low-height sports car simulation models with space limitations, thereby increasing the degree of simulation of the toy car, and improving the playability of the toy car.