Hand Exercise Device with Skewed Movement Planes
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Solution Overview
Problem
Existing hand motion exercising devices do not adequately account for the physiology of the human hand, leading to inefficient exercise and limited adaptability for both hands with a single device.
Innovation Solution
A hand motion exercising device with two thumb movement units sharing a thumb rest element, allowing for the exercise of either hand, and a single drive motor to power both thumb and finger movement units, with adjustable finger and thumb rest elements to accommodate different hand sizes and orientations, ensuring effective and efficient hand exercise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single hand exercising device is designed to exercise both hands, then the adaptability is improved, but the device complexity increases due to needing separate thumb and finger movement units for each hand
Solution Approach 1:
The device employs two thumb movement units that can share a common thumb rest element, allowing the same device structure to serve both left and right hands. The finger movement units are configured with rest elements that can be attached to accommodate either hand's anatomy, making the device universal for bilateral hand exercise without requiring complete separate systems for each hand
Solution Approach 2:
The device is segmented into independent thumb movement units and finger movement units that can be selectively attached and detached. This modular segmentation allows the thumb rest element to be shared between two thumb movement units while finger rest elements can be reconfigured for different hands, reducing overall device complexity while maintaining adaptability
2Reliability
If thumb and finger movement planes are arranged to match human hand physiology, then the exercising effectiveness is improved, but the device construction becomes more complex
Solution Approach 1:
The device employs asymmetric arrangement of movement planes where the thumb movement plane is inclined at an angle to the finger movement plane, matching the natural asymmetric anatomy of the human hand. The thumb rest element is positioned and oriented differently from finger rest elements, creating an asymmetric structure that naturally accommodates hand physiology while maintaining construction simplicity through standardized joint mechanisms
3Adaptability or versatility
If multiple thumb movement units are provided for both hands, then the adaptability for exercising either hand is improved, but the quantity of parts increases
Solution Approach 1:
Two thumb movement units are merged by allowing them to share a common thumb rest element. This merging reduces the total quantity of parts compared to having completely separate thumb units for each hand, while still providing the adaptability to exercise either hand by configuring the shared rest element appropriately
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a hand motion exercising device (1) comprising a thumb movement unit (2) with a thumb rest element (26). The thumb rest element (26) is pivotable in a first movement plane about a first joint (20). Further, the device (1) comprises a finger movement unit (3) with a first finger rest element (36), said first finger rest element (36) being pivotable in a second movement plane about a second joint (30). The thumb rest element (26) and the first finger rest element (36) are adapted to be encompassed and pressed toward one another or pulled apart from one another by a human hand. The first joint (20) and the second joint (30) are provided such that said second movement plane is skewed with respect to said first movement plane, wherein the thumb movement unit (2) and the finger movement unit (3) are connected via a first mechanical motion linkage (4) such that both movement unit (2,3) are drivable by one and the same drive motor (8).