Height-Adjustable Kayak Seat With Telescoping Legs
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Solution Overview
Problem
Kayak seats lack height adjustability, requiring paddlers to carry rigid support structures for on-the-fly height adjustments, which is cumbersome and limited in flexibility.
Innovation Solution
A self-contained height-adjustable seat system with pivoting and glide mechanisms that allow independent adjustment of seat height, angle, and fore/aft position, eliminating the need for boat geometry-dependent height adjustments and enabling easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If rigid support structures are placed beneath the seat to adjust height, then seat height is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent applies the dynamics principle by replacing static rigid support structures with a dynamic telescoping leg mechanism that allows the seat height to be adjusted on-the-fly. The telescoping legs can extend and retract as needed, enabling paddlers to change seat height while afloat without carrying separate support blocks. This transforms the height adjustment from a static, complex external modification to a dynamic, integrated function of the seat itself.
2Length of stationary object
If rigid support structures are used for height adjustment, then seat height is improved, but ease of operation deteriorates
Solution Approach 1:
The telescoping leg mechanism is designed to be self-adjusting, allowing the paddler to change seat height independently while afloat. The mechanism includes easy-to-operate locking and unlocking features that enable one-handed adjustment, eliminating the need to carry and manually position separate support blocks. The seat serves itself by incorporating the height adjustment function directly into its structure.
3Adaptability or versatility
If the seat structure is made adjustable for height, then adaptability is improved, but device complexity deteriorates
Solution Approach 1:
The seat structure is segmented into multiple telescoping sections that can independently extend and retract. Each section has its own locking mechanism, allowing for precise height control. This segmentation enables the seat to adapt to different paddler heights and preferences while keeping each individual mechanism relatively simple and manageable.
4Ease of operation
If telescoping legs are used instead of rigid supports, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The telescoping leg mechanism incorporates pre-designed locking features that engage automatically at predetermined height positions. These locking mechanisms are built into the structure beforehand to prevent accidental collapse or unintended movement during use. The design anticipates potential reliability issues by providing multiple locking points and secure engagement features that maintain structural integrity while enabling easy adjustment.
Data Source
AI summary
Disclosed adjustable seat systems that provide a self-contained height-adjustable seat system for sit-on-top kayaking that allows the seat to be adjusted into various height and angle positions, while maintaining independent adjustment to the fore/aft position of the seat in the kayak. Some of the adjustable seat systems include a seat upper that includes a seat bottom and a seat back; a seat base adapted to slidably engage a flat surface in the watercraft; and at least two pivot mechanisms coupling the seat upper to the seat base, wherein the at least two pivot mechanisms allow the seat upper to be raised and lowered relative to the seat base. Some of the adjustable seat systems further include a front seat axis, a rear seat axis, a front base axis, and a rear base axis, a front pivot mechanism that pivotally engages both the front seat axis and the front base axis, and a rear pivot mechanism that pivotally engages both the rear seat axis and the rear base axis.