Wrist Exerciser Housing with Stiffness Gradient and Buffer
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Solution Overview
Problem
Conventional wrist exercisers lack effective impact absorption and structural protection mechanisms, which can lead to damage from accidental drops or excessive user force, compromising the functionality and durability of the device.
Innovation Solution
The wrist exerciser incorporates a housing design with a supporting portion of greater stiffness than the protective assembly, featuring a rail and buffer components that absorb impact and distribute stress, along with a detachable protective ring for enhanced grip comfort and a sensor for measuring rotational speed, ensuring the gyroscopic member's stability and longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional wrist exerciser design is used without protective assemblies, then the device structure is simple, but the device lacks impact absorption capability and is vulnerable to damage from accidental drops or excessive force
Solution Approach 1:
The patent applies beforehand cushioning by incorporating buffer portions made of elastic material between the rail and the gyroscopic member. These buffer portions are pre-positioned to absorb impact forces before they reach the fragile gyroscopic components, protecting the device from damage during accidental drops or excessive user force.
Solution Approach 2:
The housing is segmented into multiple functional components: supporting portions for structural integrity, protective assemblies with rails for guidance, and buffer portions for shock absorption. This segmentation allows each component to perform its specific function optimally while collectively providing comprehensive protection to the gyroscopic member.
2Stability of the object's composition
If the supporting portion has high stiffness to maintain structural stability, then the housing maintains its shape under load, but the protective assembly cannot effectively absorb impact energy
Solution Approach 1:
The patent applies local quality by creating a stiffness gradient within the housing structure. The supporting portions have high stiffness to maintain overall housing stability and shape, while the protective assemblies with buffer portions have lower stiffness and elastic properties to effectively absorb impact energy. This local differentiation allows both structural stability and impact absorption to coexist.
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 effectively absorbs impacts, reduces stress on the gyroscopic components, and limits deformation, thereby preventing damage and maintaining the device's functionality, while the protective ring enhances user comfort and the sensor provides feedback on usage.
Implementation Method 1
The protective assembly has a rail and a buffer portion, the buffer portion is corresponding to the rail
Implementation Method 2
a strong spinning force generated by the centrifugal force and the inertia of the ball
Implementation Method 3
a strong spinning force generated by the centrifugal force and the inertia of the ball
Data Source
AI summary
A wrist exerciser includes a housing and a gyroscopic member. The housing includes a first cover, a second cover, a supporting portion and a protective assembly. The supporting portion and the protective assembly are disposed between the first cover and the second cover. Two ends of the supporting portion that are opposite to each other are in contact with the first cover and the second cover, respectively. A stiffness of the supporting portion is greater than a stiffness of the protective assembly. The protective assembly includes a rail and a buffer portion that are corresponding to each other. The gyroscopic member includes a ring and a rotor. The ring is slidably disposed on the rail. The rotor includes a ball disposed in the housing and a shaft which penetrates the ball. Two ends of the shaft that are opposite to each other are pivotally connected to the ring.