Offset Grip Paddle for Reduced Wrist Fatigue
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Solution Overview
Problem
Existing paddles for water sports, such as stand-up paddleboarding, kayaking, and canoeing, often result in wrist fatigue and inefficient propulsion due to the limitations of single-bladed or traditional two-bladed paddles, which do not provide optimal hand positioning and blade orientation for consistent and powerful strokes.
Innovation Solution
A two-bladed paddle design with a core connecting the blades, featuring offset grips and adjustable components, allowing for customizable hand positioning and blade orientation, enabling efficient and powerful propulsion with reduced wrist fatigue, and accommodating different water sports through interchangeable shaft lengths and blade arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a traditional single-bladed paddle is used, then a powerful concentrated stroke can be achieved, but wrist fatigue occurs and propulsion efficiency is reduced
Solution Approach 1:
The paddle is segmented into two separate blades (port side blade and starboard side blade) mounted on opposite ends of a central shaft. This segmentation allows the user to alternate between blades, distributing the propulsive effort and reducing wrist fatigue while maintaining powerful strokes on each side.
Solution Approach 2:
The paddle employs asymmetric grip positioning with offsets from the central shaft axis. The right hand offset and left hand offset are positioned at different locations along the shaft, creating an asymmetric hand arrangement that optimizes stroke mechanics and reduces wrist strain during alternating paddling.
2Productivity
If a two-bladed paddle is used, then direction control and propulsion efficiency are improved, but hand positioning and blade orientation become complex
Solution Approach 1:
The paddle shaft is designed as a universal platform that accommodates multiple blade configurations. The shaft includes standardized mounting points and offset positions that can work with different blade types and lengths, allowing the same core structure to serve multiple paddling styles and water sports applications.
Solution Approach 2:
The paddle introduces a third dimensional element by offsetting hand grips from the central shaft axis rather than positioning them directly on the axis. This lateral offset creates a three-dimensional hand arrangement that simplifies the transition between blades and reduces rotational complexity for the user.
3Ease of manufacture
If fixed paddle components are used, then manufacturing is simplified, but adaptability to different water sports is reduced
Solution Approach 1:
The paddle incorporates adjustable components that allow users to modify blade angle, shaft length, and grip positioning according to specific water sport requirements. This dynamic adjustability enables the same basic paddle structure to adapt to different sports such as stand-up paddleboarding, kayaking, and canoeing without requiring complete redesign.
Solution Approach 2:
The paddle is constructed as a segmented, modular system where the shaft, blades, and grips can be independently adjusted or replaced. This modular segmentation maintains manufacturing simplicity for each component while enabling extensive customization for different water sports applications.
Data Source
AI summary
A paddle for a watercraft or flotation device has a pair of shaft mounted blades connected by a core member. A right hand drive grip and a left hand drive grip are secured in spaced relation to opposite ends of the core. A right hand offset is mounted adjacent the right hand drive grip and a left hand offset is mounted adjacent the left hand drive grip for providing hand clearance for a user. The core is telescopically expandable and accommodates various size paddle shafts for propelling different watercraft.