Stroller Rocking Assembly With Weighted Piston Oscillation
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Solution Overview
Problem
Existing automatic rocking devices for baby strollers are often unwieldy, loud, and incompatible with various stroller configurations, making them ineffective for providing a calming rocking motion.
Innovation Solution
A stroller rocking device with a hollow housing, motor, and weighted piston that can be releasably attached to a stroller handle, allowing for horizontal or vertical oscillating motion, driven by a cam and connecting rod, and controlled by a unit with a manual switch and optional wireless connectivity for customizable settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing automatic rocking devices are used, then rocking motion is generated, but the devices are unwieldy and incompatible with various stroller configurations
Solution Approach 1:
The device is divided into separate functional components: a mounting assembly with strap and buckle for attachment to stroller handles, and a separate oscillating mechanism housing containing the motor and weighted piston. This segmentation allows the mounting portion to be adapted to different stroller configurations while keeping the rocking mechanism compact and manageable.
Solution Approach 2:
The mounting assembly is designed with universal adaptability to accommodate various stroller handle types and configurations. The strap and buckle system can be adjusted to fit different handle shapes, sizes, and positions, making the device compatible with multiple stroller models without requiring model-specific designs.
2Object-affected harmful factors
If existing automatic rocking devices are used, then rocking motion is generated, but they are relatively loud
Solution Approach 1:
The device uses a motor-driven cam mechanism that converts rotational motion into controlled oscillating motion of a weighted piston. This mechanical vibration approach generates the rocking motion through smooth, periodic movement rather than abrupt vibrations, producing a gentle and calming effect suitable for soothing babies while maintaining relatively low noise levels.
3Ease of operation
If manual rocking is performed, then calming effect is provided, but it is tiring and uncomfortable for the person
Solution Approach 1:
The device attaches to the stroller handle and uses the stroller's own structure as part of the rocking mechanism. The motor drives the cam, which oscillates the weighted piston, and this motion is transferred through the mounting assembly to rock the stroller. The system serves itself by utilizing the existing stroller framework rather than requiring a separate, complex mounting structure, thereby automating the rocking function while keeping the device simple and comfortable to use.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides a comfortable and customizable rocking motion for baby strollers, reducing user fatigue while being adaptable to different stroller configurations and quiet in operation.
Implementation Method 1
a cam, such as a pear-shaped cam or the like, may be mounted on a drive shaft of the motor. A first end of a connecting rod may be pivotally attached to the cam, a second end of the connecting rod being pivotally attached to the weighted piston. Driven rotation of the cam is then translated into linear oscillatory motion of the weighted piston.
Implementation Method 2
The weighted piston is selectively driven to linearly oscillate within the longitudinally extending chamber by the motor
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A stroller rocking device includes a hollow housing and a strap mount pivotally attached to an outer surface thereof. A strap is provided, having a fixed end and a free end. The fixed end of the strap is secured to the strap mount, and the strap is adapted for releasably securing the hollow housing to a handle of a baby stroller. A motor is housed within a central chamber of the hollow housing, and a weighted piston is slidably disposed within a longitudinally extending chamber of the hollow housing. The weighted piston is selectively driven to linearly oscillate within the longitudinally extending chamber by the motor. The linear oscillation of the weighted piston within the longitudinally extending chamber of the hollow housing imparts an oscillating rocking motion to the baby stroller, the rocking motion being selectable between horizontal motion and vertical motion relative to the handle of the stroller.