A washing rack comprising a holder
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Solution Overview
Problem
Conventional washing racks in dishwashers are inadequate for supporting large dishes with a significant surface area, such as trays and pans, leading to instability and inefficient use of space.
Innovation Solution
A foldable and demountable holder system comprising a rod-like first body, tabs, and a joint mechanism that allows the holder to rotate and adjust its position to securely support large dishes, while being easily removable and non-obstructive when not in use, is integrated into the washing rack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional protrusions are used to support dishes, then small dishes like plates and glasses can be supported, but large dishes such as trays and pans cannot be properly supported and may topple or occupy excessive space
Solution Approach 1:
The holder is designed with rotational capability around a vertical axis, allowing it to dynamically adjust its orientation. When rotated to a horizontal position, the holder extends outward to provide support surface for large dishes like trays and pans, preventing them from toppling or occupying excessive vertical space. This dynamic positioning resolves the contradiction between supporting various dish sizes and maintaining stability.
2Reliability
If a wire support unit is used to create a horizontal support surface, then large dishes can be supported, but the cost increases
Solution Approach 1:
The holder is constructed from the same plastic material as the washing rack body, eliminating the need for separate wire components. This homogeneous material approach reduces manufacturing complexity and cost while maintaining the structural integrity needed to support large dishes when the holder is positioned horizontally.
3Reliability
If a fixed holder structure is used to support large dishes, then stability is improved, but the holder obstructs space when not in use
Solution Approach 1:
The holder can be rotated around a vertical axis to different positions. When not needed for supporting large dishes, it can be rotated to a vertical or retracted position where it occupies minimal space and does not obstruct the washing rack. When needed, it is rotated to a horizontal position to provide stable support, thus resolving the contradiction between stability and space occupation.
4Adaptability or versatility
If permanent support structures are installed on the washing rack, then large dishes can be supported, but the complexity of the rack increases
Solution Approach 1:
The holder serves multiple functions: it can rotate to different positions, support various types of dishes including large trays and pans, and can be easily removed and reinstalled. This multi-functionality is achieved through a simple rotational mechanism integrated into the existing rack structure, adding versatility without significantly increasing overall complexity.
Data Source
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AI summary
A holder (2) and a washing rack (1), wherein the holder (2) is suitable for use in a dishwasher which comprises a washing rack (1) having a base (1a), and a frame (1b) comprising an upper frame wire (1c) and a lower frame wire (1d) located between the upper frame wire (1b) and the base (1a), wherein the holder (2) comprises a first body (3); a first tab (4) which is located at an end of the first body (3) and allows the first body (3) to be mounted to the lower frame wire (1d) such that the first body (3) is able to rotate around an axis formed by the lower frame wire (1d) and to move between a first position in which it is vertical with respect to the base (1a) and a second position in which it approaches the base (1a); a channel provided at the first body (3); and a joint (7) which has a second body (6), a pin (5) located at an end of the second body (6) and positioned in the channel to move back and forth along the channel, and a second tab (8) located at the other end of the second body (6) and allowing the second body (6) to be mounted to the upper frame wire (1c) such that the second body (6) is able to move circularly around the axis formed by the upper frame wire (1c).