Telescopic Rail Assembly with Stop Element to Prevent Detachment
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Solution Overview
Problem
Existing telescopic rail devices for cooking appliances can undesirably detach from the appliance component when pushed in with significant momentum, due to compression of the spring element, leading to unintended release.
Innovation Solution
Incorporating a stop element on the second rail that limits the damped relative movement to a defined path shorter than the release path, preventing detachment by making contact with the cooking appliance component before the rail can be released, and utilizing a spring element for damping and ejection mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the spring element is used to enable damped relative movement of the telescopic rail device, then the ease of operation is improved, but the reliability deteriorates due to undesired detachment when pushed with large momentum
Solution Approach 1:
The stop element acts as an intermediary component between the second rail and the cooking appliance component. It provides a mechanical limiting function that prevents the spring element from compressing beyond a safe threshold, thereby blocking the harmful effect (detachment) while preserving the useful function (damped movement) of the spring element.
Solution Approach 2:
The stop element provides beforehand cushioning by pre-establishing a mechanical barrier that limits the compression of the spring element. This prevents the spring from compressing too much before the detachment occurs, thereby cushioning against the harmful effect in advance while allowing the spring to function normally within safe limits.
2Loss of energy
If the spring element is compressed to dampen relative movement, then the loss of energy is reduced through controlled damping, but the object-generated harmful factors increase due to potential release of the rail extension device
Solution Approach 1:
The stop element serves as a mediator that intervenes in the energy transfer process. It allows the spring element to compress and dissipate energy through damping, but blocks the energy accumulation that would lead to harmful release, thereby separating the useful energy dissipation from the harmful effect.
Solution Approach 2:
The stop element converts the potentially harmful compression force into a beneficial limiting mechanism. By designing the stop element to engage at a specific compression point, the harmful force (excessive compression leading to release) is transformed into a beneficial function (controlled damping within safe limits).
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
Prevents undesired detachment of the telescopic rail device by limiting movement to a defined path, ensuring secure attachment and facilitating easy loading and unloading of the food support, while allowing for controlled damping and ejection mechanisms.
Implementation Method 1
The fastening device has a spring element which, when the rail extension device is in the installed state, makes contact with the cooking appliance component and forms a resilient stop for the first rail on the cooking appliance component. The spring element enables a damped relative movement of the telescopic rail device relative to the cooking appliance component
Data Source
Figure 1~3
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Figure 6~7
AI summary
The invention relates to an arrangement (14, 15) with a cooking device component (16) and a rail extension device (17) for a food support (34), with a first rail (21) which has a fastening device (22) for fastening the rail extension device (17). on the cooking appliance component (16), and with a second rail (24) which is designed to hold the food support (34), the rails (21, 24) being movable relative to one another, and the fastening device (22) having a spring element ( 35), which forms a resilient stop for the first rail (21) on the cooking appliance component (16) and, through the spring element (35), dampens relative movement of the rail extension device (17) to the cooking appliance component (16) in the direction of relative movement of the two rails (21, 24) to each other when attached to the cooking appliance component (16), the second rail (24) having a stop element (28) which is designed in such a way that the damped relative movement of the rail extension device (17) to the cooking appliance component (16) is limited to a movement path that is smaller than a release path required to release the fastening device (16) from the cooking appliance component (16). The invention also relates to a cooking appliance (1) and a method.