Cantilevered Child Seat Swing With Quiet Folding Drive Layout
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Solution Overview
Problem
Conventional child motion devices are limited in their ability to provide multiple seating orientations and motion characteristics, are often noisy due to motor placement above the child, and are not easily foldable for storage, failing to mimic the soothing movements a parent can provide.
Innovation Solution
A child motion device featuring a frame assembly with a cantilevered support arm that can move through a horizontal or tilted arc, allowing for various seating orientations and motion simulations, with a drive system positioned below the seat to reduce noise and enable compact folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the motor is mounted above the child's head, then the device can provide continuous automatic motion, but the motor becomes a noisy nuisance and takes up space making it difficult to position the child
Solution Approach 1:
The motor is inverted from its conventional position above the child's head to a position below the seat. This inversion resolves the noise problem by placing the motor away from the child's hearing area, while still enabling automatic motion through the linkage mechanism that connects the motor to the swing arm.
Solution Approach 2:
The motor positioning moves from the vertical dimension (above the seat) to the horizontal dimension (below the seat). This spatial reconfiguration allows the motor to drive the mechanism without being in the child's line of sight or hearing range, reducing perceived noise while maintaining automation.
2Stability of the object's composition
If the device has a fixed structure, then it provides stable support, but it cannot be folded for compact storage
Solution Approach 1:
The frame is segmented into multiple sections with pivot joints that allow the structure to fold. The base section, upright section, and support arm are divided into separable segments that can be collapsed together for storage while maintaining structural integrity during operation.
Solution Approach 2:
The frame transitions from a static fixed structure to a dynamic structure with movable pivot joints. These joints allow the frame to assume both an extended stable configuration for use and a collapsed compact configuration for storage, adapting to different operational requirements.
3Device complexity
If the support arm is fixed in one position, then the structure is simple, but it cannot provide multiple seating orientations or simulate parental movements
Solution Approach 1:
The support arm is made dynamic with adjustable positioning capabilities. It can be configured in multiple orientations and positions to accommodate different seating arrangements and to simulate the various movements a parent would make when holding a child, such as side-to-side rocking and gentle swinging.
Solution Approach 2:
The support arm is designed to perform multiple functions: it can hold the seat in various orientations, simulate different parental holding positions, and provide multiple types of motion. This multi-functionality is achieved while maintaining relatively simple structural elements that can be easily adjusted.
Data Source
AI summary
A child motion device has a frame assembly configured to rest on a floor surface. The device also has a drive system that defines a generally vertical axis of rotation. An arm extends from part of the device and is cantilevered from the axis of rotation. The arm is supported above the floor surface and has a driven end coupled to and movable by the drive system and a distal end opposite the driven end. The drive system is configured to pivotally reciprocate the arm through a partial orbit around the axis of rotation. A child seat is supported on the distal end of the support arm.