Infant Seat Motion Mechanism for Multi-Path Soothing
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Solution Overview
Problem
Existing infant care devices lack the ability to provide a variety of soothing motion paths beyond the traditional pendulum motion, failing to adapt to individual infants' needs for comfort, as they often rely solely on motorized bases with limited motion capabilities.
Innovation Solution
An infant care apparatus incorporating a reciprocating vertical motion mechanism and a reciprocating pendulum motion mechanism, along with a programmable processor and user control interface, to create multiple motion paths such as vertical, pendulum, waved, figure eight, and circular motions, allowing for customizable soothing experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional pendulum motion mechanism is used, then the device structure is simple, but the motion path variety is limited
Solution Approach 1:
The device is divided into two independent motion mechanisms: a reciprocating vertical motion mechanism and a reciprocating pendulum motion mechanism. Each mechanism can operate independently or in combination, allowing the seat to generate multiple motion paths (vertical bouncing, pendulum swinging, combined circular/waved motions) without requiring a completely new mechanism for each motion type.
Solution Approach 2:
The patent combines two simple reciprocating motion mechanisms (vertical and pendulum) to create complex motion paths. By merging the outputs of these two mechanisms through the support structure and link arms, the system achieves multiple motion patterns that would be difficult to obtain from a single mechanism.
2Adaptability or versatility
If multiple motion mechanisms are added to provide variety of motion paths, then the motion path variety increases, but the device complexity increases
Solution Approach 1:
Each motion mechanism (vertical and pendulum) serves multiple functions: they can operate independently to provide simple motions, or work together to create combined motions. The support structure and link arms are designed to accommodate both motion types universally, reducing the need for separate specialized mechanisms for each motion path.
Solution Approach 2:
The system uses controllable, dynamic motion mechanisms where the reciprocating vertical motion and reciprocating pendulum motion can be independently controlled in terms of amplitude, frequency, and phase. This dynamic control allows the same physical mechanisms to produce different motion paths by adjusting operational parameters rather than requiring physical reconfiguration.
3Manufacturing precision
If the motion mechanisms are made complex to achieve specific motion paths, then the motion path precision improves, but the ease of manufacture decreases
Solution Approach 1:
The patent uses standard mechanical components (link arms, pivot points, reciprocating mechanisms) that can be manufactured using conventional methods. The complex motion paths are achieved not through complex component geometry but through the kinematic arrangement and coordination of simple, manufacturable components.
Solution Approach 2:
The motion path precision is achieved by controlling operational parameters (amplitude, frequency, phase relationship between the two mechanisms) rather than requiring extremely precise component manufacturing. The system tolerates normal manufacturing variations while achieving accurate motion paths through parameter control.
Data Source
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AI summary
An infant care apparatus (1) includes a base (12), a reciprocating vertical motion mechanism (14), a vertical motion driving module (16), a reciprocating pendulum motion mechanism (18), and a pendulum motion driving module (20). The vertical motion driving module (16) is kinematically connected to the reciprocating vertical motion mechanism (14) so as to vertically move the reciprocating vertical motion mechanism (14) in reciprocating vertical motion with respect to the base (12). The pendulum motion driving module (20) is kinematically connected to the reciprocating pendulum motion mechanism (18) so as to pendulum move the reciprocating pendulum motion mechanism (18) in reciprocating pendulum motion with respect to the reciprocating vertical motion mechanism (14). Therefore, the infant care apparatus (1) can offer various seat motion paths by controlling interactions between reciprocating vertical motions of the reciprocating vertical motion mechanism (14) and reciprocating pendulum motions of the reciprocating pendulum motion mechanism (18).