Ergonomic Handgrip Reducing Vibration and Fatigue
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Solution Overview
Problem
Existing handgrips fail to effectively reduce fatigue and vibration when gripping handles due to inadequate cushioning and pressure distribution, leading to discomfort and fatigue in hands, wrists, and forearms.
Innovation Solution
A handgrip device with a first portion for attaching to a handle, a second portion for user grip, and a third portion for maintaining hand contact, designed to promote an anatomically neutral position, reduce pressure points, and distribute weight evenly, thereby reducing energy expenditure and discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If open cellular foam cushioning material is used on a handlebar, then the handgrip provides slight cushioning and secure grip, but the material readily compresses and fails to reduce vibration and fatigue
Solution Approach 1:
The handgrip device uses a composite structure combining a rigid or semi-rigid outer shell with an inner cushioning core. This composite design allows the outer shell to maintain structural integrity and resist compression while the inner core provides vibration dampening and cushioning, resolving the contradiction between material strength and vibration reduction capability.
Solution Approach 2:
The invention changes the material parameters from soft, compressible open cellular foam to a more structurally sound material with appropriate durometer hardness. This parameter change allows the handgrip to maintain its shape and cushioning properties under load while effectively absorbing vibrations, preventing both excessive compression and vibration transmission.
2Ease of operation
If a handgrip device with multiple portions is designed to distribute weight and reduce pressure points, then user comfort and neutral hand position are improved, but the device complexity increases
Solution Approach 1:
The handgrip device is segmented into distinct functional portions: a first portion that contacts the palm, a second portion that contacts the fingers, and a third portion that extends toward the wrist. Each portion is optimized for its specific function, distributing weight and pressure points across different areas of the hand, which improves comfort while maintaining a relatively simple overall structure.
Solution Approach 2:
Different portions of the handgrip have different local qualities and characteristics tailored to specific hand regions. The first portion may have a larger surface area for palm contact, while the second portion has contours for finger accommodation. This local differentiation optimizes comfort and ergonomics without requiring a completely complex device design.
Data Source
AI summary
A handgrip device configured to be removably coupled to a bicycle handlebar. The handgrip device may include a first portion that includes an opening with a center axis. The opening may be configured to receive a portion of a handle that includes a center rotational axis such that the center rotational axis is substantially aligned with the center axis of the first portion. The handgrip device may also include a second portion that is coupled to and fixed with respect to the first portion. The second portion may include a proximal end that is coupled to the first portion and a distal end that may extend away from the proximal end. The second portion may also include a first concaved side coupled between the proximal and distal ends. The first concaved side may face a first direction that is substantially perpendicular to the center axis of the first portion.