Adjustable Hammock Tensioning and Tool-Free Frame Assembly
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Solution Overview
Problem
Existing hammocks with fabric, mesh, or canvas surfaces have fixed tension, making it difficult to adjust for user comfort and weight, and require complex assembly with specific tools and qualified personnel.
Innovation Solution
A hammock design with a fastening and tensioning device using a rod and housing system that allows adjustable tension on the surface element and simplified bar attachment, enabling users to modify tension easily and assemble/disassemble without specialized tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fabric, mesh, or canvas surface element has fixed tension, then the structure is simple and stable, but it cannot be adjusted for user comfort and weight preferences
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed tension system into an adjustable one. The surface element (fabric, mesh, or canvas) is equipped with a tensioning system that allows users to modify the tension level according to their comfort needs and weight, making the hammock adaptable rather than static. This resolves the contradiction by enabling tension adjustment without fundamentally changing the overall structural simplicity.
Solution Approach 2:
The patent implements parameter changes by allowing the tension parameter of the surface element to be varied. Through the tensioning system, users can change the tension parameter to suit different users and conditions, transforming the fixed parameter into a variable one. This directly addresses the contradiction between fixed tension simplicity and adjustable tension adaptability.
2Ease of operation
If the longitudinal and transverse bars are secured to the legs using adjustment holes and fastening screws, then the connection is secure, but assembly and disassembly become complicated requiring specific tools and qualified personnel
Solution Approach 1:
The patent applies mechanics substitution by replacing the traditional screw-based fastening system with a simpler mechanical connection mechanism. Instead of requiring adjustment holes and fastening screws that need tools and expertise, the invention uses a more intuitive and tool-free connection system that maintains secure attachment while dramatically improving ease of assembly and disassembly.
Solution Approach 2:
The patent implements self-service by designing a connection system that users can assemble and disassemble without requiring qualified personnel or specific tools. The simplified fastening mechanism enables end-users to perform maintenance, assembly, and disassembly operations independently, resolving the contradiction between secure connection and ease of operation.
3Ease of operation
If the hammock is designed for factory assembly with integral parts, then manufacturing precision is high, but users cannot quickly assemble or disassemble or substitute parts themselves
Solution Approach 1:
The patent applies segmentation by dividing the hammock into modular components (legs, longitudinal bars, transverse bars, surface element) that can be independently manufactured and assembled. This modular design allows users to assemble and disassemble the hammock easily while maintaining manufacturing precision through standardized connection interfaces. Each part can also be substituted independently if needed.
Solution Approach 2:
The patent implements universality by designing standardized connection mechanisms that serve multiple functions: secure attachment, easy assembly/disassembly, and part substitution. The universal connection system works for all components and can be manufactured with standard processes while enabling user-friendly operation, resolving the contradiction between manufacturing complexity and user assembly capability.
Data Source
Figure 1.1
Figure 1.2
Figure 2.1~2.3
AI summary
The present invention relates to a bed or hammock (1) which comprises four support legs (2) delimiting two longitudinal sides (4.1, 4.2) between them, each one of which has longitudinal bars (11), and two transverse sides (5.1, 5.2) which are shorter in length than, and perpendicular to, the previously mentioned sides, a surface element (3) made up of a fabric, mesh, canvas or similar material arranged between the support legs (2), wherein said legs (2) are made up of a body which comprises lateral faces (6) perpendicular to the side they delimit, respectively, outer faces (7) parallel to the side they delimit, respectively, and an upper face (8), wherein each longitudinal and transverse bar (11) is fastened to a pair of legs (2), respectively, by fastening means, and wherein the invention comprises a fastening and/or tensioning device for the surface element (3) on at least one of the longitudinal sides (4.1, 4.2) and/or transverse sides (5.1, 5.2).