Height-Adjustable Dishwasher Rack with Roller Unit for Safe Handling
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Solution Overview
Problem
Conventional dishwashers have limited space flexibility for dishes of varying sizes, leading to inefficient storage and safety hazards due to direct contact with heated racks when drawing them.
Innovation Solution
A height-adjustable dish rack system with a moving roller unit and location adjusting mechanism, allowing for adjustable vertical movement and preventing direct contact with heated frames during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rack is fixed at a predetermined height, then the structure is simple and stable, but the storage space flexibility for dishes of different sizes is limited
Solution Approach 1:
The rack transitions from a fixed static structure to a dynamic adjustable structure. The height adjusting unit allows the rack to change its vertical position along the guide rail, enabling adaptation to different dish sizes while maintaining structural stability through controlled movement and locking mechanisms.
Solution Approach 2:
The rack structure is divided into separable components: the rack body, the moving roller unit, and the height adjusting unit. This segmentation allows independent adjustment of rack height while maintaining the integrity of each component, providing flexibility without excessive complexity.
2Reliability
If the rack is drawn directly without protection, then the operation is simple and fast, but the user may contact heated frames causing safety hazards
Solution Approach 1:
A protective cover is introduced as an intermediary element between the user and the heated rack frame. The cover serves as a thermal barrier that prevents direct contact with hot surfaces while allowing the user to easily draw and position the rack, thus enhancing safety without significantly complicating operation.
Solution Approach 2:
The protective cover is pre-installed on the rack frame before use. This preliminary protective measure ensures that safety protection is already in place when the user draws the rack, eliminating the need for additional safety actions during operation while maintaining ease of use.
Data Source
AI summary
Disclosed are a dish rack and dishwasher having the same. The present invention includes a wash tub forming a wash space, a rack configured to store a dish by being drawably provided within the wash tub, and a plurality of spray units configured to spray water upon the rack, wherein the rack comprises a frame configured to store a dish, a moving roller unit coupled with the frame to move upward and downward, the moving roller unit supporting a guide rail to draw the frame, and a location adjusting unit coupled with the frame, the location adjusting unit configured to selectively fix an upward/downward movement of the moving roller unit and release a fixed state of the moving roller unit to enable the upward/downward movement of the moving roller unit.