Two-Energy-Store Acceleration Mechanism for Smooth Carrier Motion
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Solution Overview
Problem
Existing acceleration devices lack the ability to dynamically change their properties, particularly in terms of energy storage and release rates, which limits their effectiveness in applications such as controlled movement and positioning of furniture components.
Innovation Solution
A combined deceleration and acceleration device with a carrier element and two energy stores, where the second energy store is charged at the parking position and controls the energy change rate of the first energy store during its discharge, allowing for adjustable energy release and absorption rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single energy store is used to move the carrier element from parking position to end position, then the device structure is simple, but the dynamic properties cannot be changed and the energy release rate is uncontrolled
Solution Approach 1:
The single energy store is divided into two separate energy stores (first energy store and second energy store). The first energy store provides the primary driving force for moving the carrier element, while the second energy store controls the energy release rate through the guide element. This segmentation allows independent optimization of each energy store's function, enabling changeable dynamic properties while maintaining manageable device complexity.
Solution Approach 2:
The guide element is designed to be movable relative to the second energy store, allowing the energy release characteristics to be dynamically adjusted during operation. The guide element can change its position and orientation, thereby modifying how the second energy store releases energy and controlling the energy change rate of the first energy store throughout the discharge time interval.
2Speed
If the energy release rate is high, then the movement speed is fast, but the movement becomes jerky and less smooth
Solution Approach 1:
The second energy store releases energy in a controlled periodic manner through the guide element during the discharge time interval of the first energy store. This periodic energy release modulates the overall energy delivery, maintaining high speed while smoothing out jerky movements by distributing energy release over time rather than delivering it all at once.
Solution Approach 2:
The guide element acts as an intermediary between the first energy store and the carrier element. It translates the energy from the first energy store into controlled motion by incorporating the second energy store's influence, thereby mediating the energy transfer process to achieve both high speed and smooth movement characteristics.
3Manufacturing precision
If the energy change rate is controlled throughout the entire discharge time interval, then the movement precision is high, but the device complexity increases significantly
Solution Approach 1:
The control of the energy change rate is applied locally rather than uniformly throughout the entire discharge time interval. The second energy store and guide element provide controlled influence during specific portions of the discharge interval where precision is most needed, while allowing the first energy store to operate more independently during other phases. This local quality approach achieves high movement precision without requiring complex control mechanisms for the entire operation.
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
This solution enables precise control over the dynamic behavior of the acceleration device, ensuring smooth and jerk-free movement of furniture components by adjusting the energy change rate, thereby enhancing the device's operational flexibility and efficiency.
Implementation Method 1
a first energy store (52) connected to the carrier element (40) for moving the carrier element (40) from a locked parking position (1) to an end position (2) while its energy is being discharged
Implementation Method 2
a second energy store (62) associated with a guide element (61) and charged with an initial energy amount when the carrier element (40) is in the parking position (1), the second energy store (62) being discharged upon release of the carrier element (40) from the parking position (1)
Data Source
AI summary
In an acceleration device including a carrier element movably disposed in a housing together with a first energy store which is connected to the carrier element for moving the carrier element from a locked parking position to an end position while its energy is being discharged, a second energy store, which is charged with an initial energy amount when the carrier element is in the parking position, is associated with a guide element and is discharged upon release of the carrier element from the parking position while the carrier element is moved to an end position opposite the parking position. The second energy store, while being discharged to a residual energy amount, controls, by means of the guide element, the energy change rate of the first energy store at least in a part of its discharge time interval.