Bouncing Cradle Recline Locking for Stable Angle Adjustment
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Solution Overview
Problem
Existing bouncing cradles lack easy and safe readjustment between inclination positions, fail to maintain set angles during lifting, and do not automatically assume a stable inclination position after conversion from a transportation state, while also lacking a secure locking mechanism for conversion between states.
Innovation Solution
A bouncing cradle design featuring an adjustment fitting with recesses at different distances for setting angles, a locking mechanism that maintains the inclination position, and a detachable construction for folding into a transportation position, which automatically assumes a stable inclination upon loading and includes a locking device for secure conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple adjustment fitting without locking mechanism is used, then the device complexity is reduced, but the reliability of maintaining inclination position during lifting deteriorates
Solution Approach 1:
A locking arm acts as an intermediary element between the adjustment fitting and the bar. The locking arm engages with the bar to prevent it from sliding out of the recesses during lifting, thereby maintaining the selected inclination position without requiring a complex locking mechanism in the adjustment fitting itself
Solution Approach 2:
The system automatically maintains the selected inclination position through the interaction between the locking arm and the bar. The locking arm passively engages with the bar when the backrest is in the selected position, providing self-servicing position stability without requiring active control or complex mechanisms
2Adaptability or versatility
If multiple recesses are provided at different distances for angle adjustment, then the adaptability for different inclination positions is improved, but the device complexity increases
Solution Approach 1:
The adjustment fitting is segmented into multiple recesses at different distances from the pivot mounting, each recess corresponding to a specific inclination position. This segmentation allows the backrest to be adjusted to different angles (e.g., for playing, resting, sleeping) while keeping the overall structure simple and intuitive
3Ease of operation
If a detachable construction for folding into transportation position is implemented, then the ease of operation for transportation is improved, but the reliability of secure detachment deteriorates
Solution Approach 1:
A detachable connection mechanism acts as an intermediary between the backrest and base frame, allowing easy detachment for transportation while ensuring secure connection during use. The mechanism enables simple folding into a compact transportation position while maintaining structural integrity when assembled
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
Enables easy, safe, and secure reconfiguration between inclination positions, maintains set angles during lifting, and automatically assumes a stable position upon loading, ensuring safety and convenience in use and transportation.
Implementation Method 1
The locking arm 70 is pivotally mounted around a spindle 71 in the vicinity of the pivot mounting 23
Implementation Method 2
The locking arm 70 is biased by a spring 72 toward the end position shown
Implementation Method 3
the bar 14 can always, from the opening 60, slide on surfaces inclined to the vertical into the bottom portion 62 of a recess, when the backrest is loaded vertically
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A bouncing cradle comprising a base frame (10), a backrest (20), a first pivot mounting (12) arranged for the backrest (20) and carried by the base frame (10), an arm (22) fixedly connected to the backrest (20) and situated under the backrest (20) as well as at a distance from the first pivot mounting (12), the arm being, via a second pivot mounting (22, 23), connected to an adjustment fitting (40), the adjustment fitting (40) having at least two recesses (51, 52) that are situated at different distances from the second pivot mounting (22, 23) and that can receive a bar (14) carried by the base frame (10) and situated at a distance from the first pivot mounting, for setting different angles of inclination of the backrest (20) in relation to the base frame (10), the bar (14), the arm (22) and the first and the second mounting (12, 22) being axially parallel and the base frame (10) being intended to stand on a substantially horizontal underlay. The adjustment fitting (40) has a through elongate opening (60) having a side (61), which is turned obliquely downward and facing the first pivot mounting and in which the recesses (51, 52, 53) are situated. Each recess (51-53) has a bottom part (62) that supportingly receives the bar (14), and a mouth portion (63) that, obliquely downward and toward the first pivot mounting, mouths into the opening (60).