Bouncing Cradle Bottom Frame With Integrated Sleeves for Stable Fastening
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Solution Overview
Problem
Existing bouncing cradles face challenges with the stability and strength of the fastening of the yoke to the support plate due to load variations from child play, and the durability of the pivot mounting for the backrest is difficult to maintain over time.
Innovation Solution
A redesigned support plate with integrated sleeves and bolt joints provides a high-strength, stable connection for the yoke, along with a centring mechanism and a detachable locking system for the backrest in transportation position, using friction material for anti-skid protection and elastic components for secure retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the yoke is fastened to the support plate using conventional methods, then the structure can be assembled, but the fastening stability and strength are insufficient due to load variations from child play
Solution Approach 1:
The support plate is made of a composite structure combining a rigid base plate with integrated elastic elements (springs). This composite design allows the rigid portion to provide structural strength while the elastic portion absorbs load variations and movements during child play, resolving the contradiction between fastening strength and fastening stability.
Solution Approach 2:
The support plate incorporates elastic elements that change their mechanical parameters (stiffness, force) in response to applied loads. The springs provide increasing resistance as load increases, adapting to the varying forces generated during child play and maintaining reliable fastening under dynamic conditions.
2Reliability
If the pivot mounting is constructed using conventional methods, then the backrest can be mounted, but the durability over time is difficult to maintain
Solution Approach 1:
The pivot mounting is provided with a damping element that cushions and absorbs shocks and vibrations before they can cause damage to the mounting structure. This beforehand cushioning protects the pivot mounting from the cumulative effects of repeated use and load variations, maintaining durability over an extended service life.
3Area of stationary object
If the base frame uses a small support plate, then the structure is compact, but the three support points cannot provide stable support on uneven floors
Solution Approach 1:
The support function is segmented between the small support plate area and the elastic elements. The small plate maintains compactness while the elastic elements (springs) provide independent adjustment at each support point, allowing the base frame to adapt to uneven floors and maintain stability without increasing the overall footprint.
4Adaptability or versatility
If the backrest is made movable for adjustment, then different inclination angles can be achieved, but the pivot mounting becomes less durable over time
Solution Approach 1:
The damping element in the pivot mounting cushions the mechanical stresses and vibrations generated during backrest adjustment and use. This beforehand cushioning protects the movable pivot mounting from wear and damage, maintaining durability even with frequent inclination changes and adjustments.
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 solution enhances the stability and strength of the bouncing cradle, ensuring it remains stable on uneven floors and maintains the backrest's pivot mounting durability, while allowing easy conversion to a transportation position.
Implementation Method 1
The pivot mounting (12) is provided with an elastic element (damping element), which protects the mounting from vibrations and shocks arising during use of the bouncing cradle.
Implementation Method 2
friction material for anti-skid protection
Data Source
AI summary
A bouncing cradle comprises a base frame (10) intended to rest on an underlay, a backrest (20), a pivot mounting (12) arranged for the backrest and carried by the base frame, an arm (22) fixedly connected to the backrest and situated under the backrest as well as at a distance from the pivot mounting, and an adjustment fitting (40) for setting different angles of inclination of the backrest in relation to the base frame, the base frame comprising an essentially plane support yoke (84), the branch ends of which are attached to a support plate (16). The support plate (16) consists of an injection-moulded piece of plastic having integrated tubular sleeves (85) that receive the mutually parallel ends of the yoke branches, and that the sleeves (85) are situated at a distance above the support surface of the support plate (16) facing the underlay.