Cooking Appliance Telescopic Rail Locking for Tool-Free Removal
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Solution Overview
Problem
Existing telescoping devices for cooking appliances face challenges in easy assembly and disassembly without additional aids, and in preventing undesirable detachment from the side wall or rail during position changes.
Innovation Solution
A telescoping device design featuring a blocking part and a gear system that allows for manual assembly and disassembly without additional tools, with a blocking part that ensures the device remains attached to the side rail during position changes, and a coupling device for automatic extension and retraction of the food carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the telescopic device is designed to be detachably mounted on the side wall or side grille, then assembly and disassembly become easier, but the device may undesirably detach during position changes
Solution Approach 1:
The blocking part dynamically changes its function based on the position of the telescopic device. In the retracted position, it allows easy assembly/disassembly by being movable relative to the mounting rail. During extension/retraction, it automatically engages to prevent detachment. This dynamic behavior resolves the contradiction between ease of operation and attachment stability.
Solution Approach 2:
The blocking part automatically performs the function of preventing detachment without requiring additional aids or manual intervention. When the telescopic device is in the extended position or during position changes, the blocking part self-activates to engage with the mounting rail, ensuring the device remains securely attached while maintaining ease of assembly/disassembly in the retracted position.
2Reliability
If additional aids are used for assembly and disassembly, then attachment stability is improved, but operation complexity increases
Solution Approach 1:
The blocking part is designed to automatically engage with the mounting rail during extension and retraction operations without requiring additional assembly aids. The blocking part's automatic engagement mechanism ensures attachment stability while maintaining simple operation, eliminating the need for extra tools or aids.
Solution Approach 2:
The blocking part acts as an intermediary element between the telescopic device and the mounting rail. It provides the necessary engagement mechanism that ensures stable attachment during position changes without requiring additional external aids, thus resolving the contradiction between reliability and device complexity.
3Reliability
If the blocking part is always engaged to prevent detachment, then attachment stability is improved, but assembly and disassembly become more difficult
Solution Approach 1:
The blocking part's engagement state is dynamic rather than static. In the retracted position, the blocking part is movable relative to the mounting rail, allowing easy assembly and disassembly. During extension and retraction, it automatically engages to prevent detachment. This position-dependent behavior resolves the contradiction between attachment stability and ease of operation.
Solution Approach 2:
The blocking part exhibits different functional properties in different positions of the telescopic device. In the retracted position, it has high mobility to facilitate assembly/disassembly. During extension/retraction, it transitions to a locked engagement state for maximum stability. This local differentiation of functional quality resolves the contradiction.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a telescopic device (4) for a cooking appliance (2) for holding a food carrier, comprising a mounting rail (8) and a remainder of the telescopic device mounted longitudinally displaceable from the mounting rail (8) with a longitudinally displaceable retaining rail (14) for holding the food carrier, wherein the telescopic device (4) can be moved back and forth between a retracted position and an extended position, characterized in that the mounting rail (8) and the aforementioned remainder of the telescopic device (4) are designed to correspond to each other in such a way that the telescopic device (4) can be mounted and dismounted in the retracted position on a side wall or a side grid (10) only by means of the mounting rail (8), and,that the telescoping device (4) is held indestructibly against the side wall or side grille (10) solely by means of the mounting rail (8) and the remainder of the telescoping device (4) during a transition of the telescoping device (4) from the retracted position to the extended position and vice versa, as well as in the extended position, solely by the aforementioned transitions or the presence of the extended position against the side wall or side grille (10). Furthermore, the invention relates to a cooking appliance (2) and a method.