Refrigerator with rapidly installable pull-out system
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Solution Overview
Problem
Existing refrigeration appliances are difficult to manufacture, assemble, and clean due to complex pull-out systems that are not easily detachable from the inner container.
Innovation Solution
A refrigeration appliance with a lockable, quick-release fastener system for the pull-out rail that allows easy mounting and detachment, featuring a telescopic design with a locking mechanism to secure the pull-out rail to the inner container, enabling simple assembly and disassembly, and facilitating easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the pull-out rail is permanently fixed to the inner container, then the structural stability is improved, but the ease of cleaning and assembly is worsened
Solution Approach 1:
The fastening system is divided into separate components: a fastening element integrated into the inner container and a locking part integrated into the pull-out rail. This segmentation allows the pull-out rail to be securely attached during operation while enabling easy detachment for cleaning purposes.
Solution Approach 2:
The locking part acts as an intermediary mechanism between the pull-out rail and the inner container. It provides a secure connection during normal use through the locking element engaging with the fastening element, but allows easy removal when needed for cleaning by disengaging this intermediate locking mechanism.
2Reliability
If the pull-out rail is permanently fixed to the inner container, then the reliability is improved, but the ease of manufacture and assembly is worsened
Solution Approach 1:
The fastening system is divided into separate components: a fastening element integrated into the inner container and a locking part integrated into the pull-out rail. This segmentation allows the pull-out rail to be securely attached during operation while enabling easy detachment for cleaning purposes.
Solution Approach 2:
The locking mechanism is designed to be self-securing through the engagement of the locking element with the fastening element, eliminating the need for additional tools or complex assembly procedures. The system automatically provides reliable fixation when the locking part is engaged with the fastening element.
3Reliability
If a complex locking mechanism is used to secure the pull-out rail, then the reliability is improved, but the device complexity is worsened
Solution Approach 1:
The locking function is extracted as a separate, integrated component (the locking part) within the pull-out rail assembly, rather than being distributed across multiple separate fastening components. This consolidation maintains reliable locking through the locking element while simplifying the overall system structure.
Solution Approach 2:
The locking part acts as an intermediary mechanism between the pull-out rail and the inner container. It provides a secure connection during normal use through the locking element engaging with the fastening element, but allows easy removal when needed for cleaning by disengaging this intermediate locking mechanism.
Data Source
Figure 1
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Figure 4~5
AI summary
The invention relates to a refrigerator (1), in particular a household refrigerator, comprising a thermally insulated housing comprising an outer housing (2), a thermally insulating layer (15) and an inner container (3) with container walls, said inner container comprising an internal space (4) for holding cooled goods (5), wherein at least one pull-out rail (7) comprising a fixed rail part (31) and at least one loose rail part (32) is disposed at at least one of the container walls (30), said pull-out rail providing for the fastening of a cooled goods storage tray (6) that can be pulled out, wherein the fixed rail part (31) is provided with openings (12) for insertion, with play, of fastening elements (9) provided at the container wall (30), at least one of said fastening elements being connected, by way of a locking part (10), to the fixed rail part (31) at least without play in the direction of motion of the loose rail part (32), characterized by an especially simple installation and simple manufacture and ease of cleaning.