Hip-Based Carrying System Dorsal Articulation Mechanism
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Solution Overview
Problem
Conventional waist attachment systems in carrying systems, such as backpacks, fail to efficiently articulate with user movements, leading to unnecessary workload due to synchronization of hip and carrying portion movements, and often compromise on adjustability and comfort.
Innovation Solution
A hip-based user attachment system with a dorsal articulation member and strap member that allows three restricted degrees of freedom - rotational coronal, transverse tilt, and sagittal tilt - to absorb user hip movements, ensuring only desirable movements are translated to the carrying system, while maintaining adjustability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional rigid hip attachment systems are used to directly transfer user hip movement to the carrying portion, then structural stability is maintained, but user workload increases due to unnecessary synchronization of hip and carrying portion movements
Solution Approach 1:
The patent applies the dynamics principle by introducing a multi-degree-of-freedom articulation mechanism that allows the carrying portion to move independently from rigid hip synchronization. The articulation member enables dynamic adaptation to user movement patterns, allowing the carrying portion to follow natural hip motion without requiring active muscular control for synchronization, thereby reducing user workload while maintaining stability.
Solution Approach 2:
The patent segments the rigid connection between hip and carrying portion into multiple articulated joints with independent degrees of freedom. This segmentation allows each joint to handle specific movement components separately, enabling the system to maintain structural stability while accommodating natural hip motion variations without transferring unnecessary movement forces to the user.
2Ease of operation
If hip attachment point is allowed to freely rotate coronally to accommodate user movement, then ease of operation is improved, but weight distribution becomes undesirable at particular lateral lean angles
Solution Approach 1:
The patent applies parameter changes by implementing restricted degrees of freedom in the articulation mechanism. Instead of allowing free rotation, the system modifies the rotational parameters to permit movement only within specific angular ranges that maintain proper weight distribution. This ensures ease of articulation during normal walking while preventing excessive lateral lean that would cause undesirable weight shifts.
Solution Approach 2:
The patent applies local quality by providing different movement freedoms for different articulation directions. The articulation mechanism allows greater freedom in the sagittal plane for natural walking motion while restricting coronal plane rotation to maintain weight distribution. This directional differentiation optimizes both ease of operation and stability for specific movement types.
3Ease of operation
If existing articulating hip attachment systems are implemented to allow movement freedom, then ease of operation is improved, but adjustability functions such as torso length adjustment are eliminated
Solution Approach 1:
The patent segments the articulation and adjustment functions into separate modular components. The articulation mechanism provides movement freedom in one module, while independent adjustment mechanisms for torso length and other parameters are provided in separate modules. This segmentation allows both movement freedom and adjustability to coexist without interfering with each other.
Solution Approach 2:
The patent applies universality by designing the articulation mechanism to handle multiple movement types (sagittal, coronal, transverse) simultaneously while maintaining compatibility with various adjustment functions. The multi-degree-of-freedom joint serves universal articulation needs without compromising the ability to perform specific adjustments like torso length changes.
Data Source
AI summary
One embodiment of the present invention relates to a user based carrying system capable of independent transportation of a load including a hip-based user attachment system. The carrying system includes an enclosure member having an internal region encased by an internal surface. A user attachment system releasably secures the carrying system to the user for independent transportation without requiring muscular engagement. The user attachment system includes a hip attachment system with a dorsal articulation member and a strap member. The dorsal articulation member includes a front and rear member three-dimensionally moveably coupled to one another. The rear member is coupled to the enclosure member and the front member is coupled to the strap member. The three-dimensional moveable coupling between the front and rear members includes three restricted degrees of freedom configured to efficiently absorb corresponding user hip movements and directly support other user hip movements.