Independent Hammock Suspension Using Segmented Web Straps
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Solution Overview
Problem
Conventional hammock suspension methods result in lateral instability, uncomfortable sagging, and tree damage, while requiring advanced knot-tying skills and lacking storage space and environmental responsibility.
Innovation Solution
The use of elongated webbing with spreader member pockets and anchor strap coupling fasteners that fully encircle the tree, creating two longitudinal suspension axes for stability and preventing slippage, along with horizontal, rigid spreader members to direct forces longitudinally and provide a flat sleeping platform, and adjustable fasteners for easy setup without complex knot-tying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single support strap is used to suspend the hammock, then the hammock can be suspended between two trees, but lateral instability occurs causing dangerous rolling and pitching
Solution Approach 1:
The single support strap is segmented into two separate support straps, each attached to one tree. This segmentation creates two independent suspension lines that work together to provide both vertical support and lateral stability, preventing the rolling and pitching that occurs with a single strap.
Solution Approach 2:
The suspension system transitions from a single-axis (one-dimensional) support configuration to a two-axis configuration by using two separate straps attached to different trees. This adds a lateral dimension to the support system, creating a stable platform that resists lateral forces while maintaining vertical suspension.
2Area of stationary object
If the hammock ends are placed farther from the trees, then more space is available, but the construction becomes increasingly laterally unstable
Solution Approach 1:
By using two separate support straps attached to different trees rather than one continuous strap, the system creates independent lateral support at each end. This segmentation allows the hammock to extend farther from the trees while maintaining stability, as each strap independently resists lateral movement at its respective attachment point.
3Weight of moving object
If spreader members are omitted to reduce weight, then overall hammock weight decreases, but the hammock ends bunch laterally creating shoulder pinch
Solution Approach 1:
The traditional rigid spreader bar is extracted from the system and replaced with a flexible webbing-based lateral stabilization mechanism. The two support straps themselves, when properly tensioned and angled, provide the lateral separation function previously performed by rigid spreaders, eliminating the need for additional weight while maintaining comfort.
4Ease of manufacture
If conventional single-pass suspension around the tree is used, then the hammock can be attached, but the tree surface is damaged due to rubbing at the suspension point
Solution Approach 1:
The single-pass suspension is segmented into two separate attachment points, each with its own support strap attached to different trees. This segmentation distributes the mechanical stress and rubbing forces across two different locations on the trees rather than concentrating them at one point, significantly reducing damage to any single tree surface.
Solution Approach 2:
The attachment system transitions from a single-point attachment to a distributed multi-point attachment configuration. By attaching to two separate trees at different locations, the system distributes the harmful rubbing forces across multiple dimensions in space, preventing concentration of stress at any single tree surface location.
Data Source
AI summary
An improved hammock suspension system is provided which is both laterally stable and flat, and suspended between two spaced trees by longitudinally elongated web straps coupled to an independent anchor strap, one at each end. These longitudinally elongated web straps are affixed to each longitudinal side edge and extend a distance beyond the opposing hammock body ends, creating four web extensions. These web extensions extend a distance to accommodate spreader member receptacles which secure horizontal, rigid spreader members, thus transferring load forces along opposing longitudinal edges, creating a flatter sleeping platform. The extensions also accommodate fasteners, creating four points of connection and coupling the elongated web strap extensions to an independent web strap anchored to a tree by passing the strap around the tree at minimum 540 degrees, fully encircling and anchoring the strap to the tree and preventing slippage, while also alleviating torsional roll.