Skateboard Plate Impact Protection via Rod Mounting
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Solution Overview
Problem
Existing skateboards with front and rear plates connected by a spring element are prone to cracking under heavy loads due to direct impact transfer from the wheels.
Innovation Solution
The skateboard design features longitudinal bores or bushings in the plates for securing rods, with wheels mounted to these rods via brackets, redirecting impact forces away from the plates and incorporating a leaf spring for controlled movability and protection within a pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wheels are directly mounted to front and rear plates, then the structure is simple, but the plates are subjected to great loads and may crack
Solution Approach 1:
The skateboard structure is segmented into distinct components: front plate, rear plate, rods, brackets, and wheels. The rods and brackets act as intermediate structural elements that separate the wheel mounting function from the plate structure, distributing loads away from the plates themselves.
Solution Approach 2:
Rods and brackets are introduced as intermediary components between the wheels and the plates. These intermediaries absorb and redirect impact forces, preventing direct transmission of heavy loads to the front and rear plates, thereby preventing cracks while maintaining structural integrity.
2Device complexity
If impact forces are directly transferred to plates, then the assembly is simple, but the plates are subjected to harmful factors
Solution Approach 1:
Rods and brackets serve as intermediary elements that intercept impact forces from the wheels before they reach the plates. The brackets, in particular, are designed to absorb shock and redirect forces along the rods, protecting the plates from direct impact damage.
Solution Approach 2:
The rod-bracket assembly acts as a pre-configured cushioning system that absorbs impact forces before they can damage the plates. This protective mechanism is built into the structure in advance, preventing harmful effects before they occur.
3Ease of operation
If wheels are mounted obliquely on rods, then the wheels are aligned in travelling direction, but the mounting complexity increases
Solution Approach 1:
The wheels are mounted obliquely (at an angle) on the rods rather than perpendicularly. This asymmetric mounting arrangement allows the wheels to self-align with the traveling direction during operation, improving ease of operation while the modular rod-bracket design keeps the overall complexity manageable.
Solution Approach 2:
The oblique wheel mounting allows for dynamic adjustment and self-alignment during movement. The wheels can naturally orient themselves in the traveling direction through the oblique mounting geometry, providing adaptive alignment without complex adjustment mechanisms.
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
This design ensures a robust assembly that prevents plate cracking, aligns wheels with the travel direction, cushions impacts, and allows for easy mounting of brake blocks and support wheels, enhancing durability and user safety.
Implementation Method 1
a spring element, which is formed by an elongated torsional spring
Implementation Method 2
the spring element, which is formed by an elongated torsional spring being secured at each end to a rod
Data Source
Figure 1~3
Figure 4~5
AI summary
A skateboard with two wheels (11), said skateboard having a front plate (15) and a rear plate (16) which are connected with each other by a spring element (3), which is secured to a rod (1 and 2) at both ends of the spring element (3). The two wheels (11), the front plate (15) and the rear plate (16) are secured inclined (4) to the rod (8, 11) by means of screw connections (4, 12) to form an angle relative to the upper sides of the plates (15 and 16). In this manner, the front plate (15) and the rear plate (16) are protected against breaks, as the wheels (11) are not secured directly to the front plate (15) and the rear plate (16), but to the rods (1 and 2) with the spring element (13).