Multi-Axis Base Seat for Beds and Chairs to Reduce Height and Noise
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Solution Overview
Problem
Conventional swingable beds or rocking chairs typically operate in a single direction, leading to boredom and inadequate relaxation, and multifunctional designs result in complex structures, increased height, weight, and manufacturing costs, along with excessive noise when multiple motion mechanisms are active.
Innovation Solution
A base seat design for beds, chairs, or sofas that incorporates a fixation base, first and second rocking mounts, a swivel mount, and drive devices to enable independent or simultaneous swinging back and forth, side-to-side motion, and rotation, while maintaining a compact structure and reducing noise and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple motion mechanisms are added to enable swinging back and forth, side to side, and rotation, then the functionality and versatility of the base seat is improved, but the structural complexity and number of components increases
Solution Approach 1:
The base seat is divided into multiple independent motion mechanisms: a first rocking mechanism for back-and-forth swinging, a second rocking mechanism for side-to-side swinging, and a swiveling mechanism for rotation. Each mechanism operates independently but is integrated through shared components like the fixation base and mounting structures, allowing multifunctionality while maintaining manageable structural complexity through modular design
Solution Approach 2:
The base seat integrates multiple motion functions into a single unified structure that can perform back-and-forth swinging, side-to-side swinging, and rotation simultaneously or independently. The fixation base serves as a universal mounting platform for all three mechanisms, and the drive devices can be controlled to provide various motion combinations, making the system highly versatile without requiring separate independent structures for each function
2Adaptability or versatility
If multiple motion mechanisms are added to enable swinging back and forth, side to side, and rotation, then the functionality of the base seat is improved, but the height of the base seat increases
Solution Approach 1:
The motion mechanisms are arranged in a compact three-dimensional configuration around the central vertical axis. The rocking mechanisms utilize horizontal arc-shaped trajectories rather than vertical stacking, and the swiveling mechanism rotates about the vertical axis. This spatial arrangement allows all three motion functions to coexist within a limited height envelope, transforming the problem from vertical stacking to horizontal and radial distribution in multiple dimensions
3Adaptability or versatility
If multiple motion mechanisms are added to enable swinging back and forth, side to side, and rotation, then the functionality of the base seat is improved, but the weight of the base seat increases
Solution Approach 1:
Multiple motion mechanisms share common structural elements: the fixation base serves as the mounting platform for both rocking mechanisms and the swiveling mechanism; the drive devices can be integrated or coordinated to reduce redundant components; and the mounting structures for the rocking mechanisms are designed to also support the swiveling mechanism. This merging of functions and structures reduces the total weight compared to having completely separate independent mechanisms
4Adaptability or versatility
If multiple motion mechanisms are added to enable swinging back and forth, side to side, and rotation, then the functionality of the base seat is improved, but the manufacturing cost increases
Solution Approach 1:
The base seat is designed as a modular assembly of independent motion mechanisms (first rocking mechanism, second rocking mechanism, and swiveling mechanism) that can be manufactured separately and then assembled. Each mechanism can be produced using standard manufacturing processes and then integrated through the fixation base and mounting structures, reducing overall manufacturing complexity and cost compared to creating a fully integrated complex mechanism
Solution Approach 2:
The fixation base and mounting structures are designed to serve multiple functions: supporting both rocking mechanisms, mounting the swiveling mechanism, and providing structural integration. This universal design reduces the number of unique components that need to be manufactured, simplifying the supply chain and reducing manufacturing costs through economies of scale on common parts
5Adaptability or versatility
If multiple drive devices operate simultaneously to enable swinging back and forth, side to side, and rotation, then the functionality of the base seat is improved, but the noise level increases
Solution Approach 1:
The drive devices can be controlled to operate in periodic or alternating sequences rather than continuously simultaneously. For example, the rocking mechanisms can alternate their swinging cycles, or the swiveling can occur in periodic intervals between rocking phases. This periodic operation reduces the cumulative noise level compared to continuous simultaneous operation of all three drive devices, while still providing full functional capability over time
Data Source
AI summary
A base seat, which is adapted for being used with a bed, a chair or a sofa, includes a fixation base, a first rocking mount disposed above the fixation base and driven by a first drive device to reciprocatingly swing back and forth relative to the fixation base, a second rocking mount disposed above the first rocking mount and driven by a second drive device to reciprocatingly swing from side to side relative to the first rocking mount, and a swivel mount disposed above the second rocking mount and driven by a third drive device to rotate about an imaginary vertical axis. As such, the base seat can swing back and forth, swing from side to side, and rotate, independently or simultaneously.