Adjustable Dishwasher Utensil Rack for Upright Loading
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Solution Overview
Problem
Conventional dishwasher racks struggle to efficiently accommodate utensils of varying shapes and sizes, leading to reduced capacity and ineffective cleaning, especially for slender utensils that cannot stand upright and often fall or obstruct the spray arms, and there is a risk of unintentionally removing racks from the slides during use.
Innovation Solution
A utensil rack system with vertically adjustable basket elements that can form a whole basket, allowing for flexible positioning and secure mounting to the dishwasher using a closure mechanism on the slides to prevent accidental removal, accommodating different utensil sizes and shapes while maximizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slender utensils are placed upright in the silverware basket, then they can be cleaned effectively, but the basket height is insufficient and utensils lean against edges and each other
Solution Approach 1:
The rack structure is made dynamically adjustable with height-adjustable rack feet that can be positioned at different heights to accommodate utensils of varying lengths. This allows the rack to adapt its configuration rather than being fixed, enabling both upright utensil storage and adequate clearance for the spray arm to rotate effectively.
Solution Approach 2:
The vertical position of the rack is made variable through adjustable rack feet that can be set at different heights. This parameter change allows optimization of both the upright storage capability (by providing sufficient height) and the spray arm clearance (by adjusting the rack's vertical position relative to the spray arm rotation path).
2Adaptability or versatility
If slender utensils are laid down in the racks, then they can be accommodated, but they occupy substantial rack floor space and reduce overall capacity
Solution Approach 1:
Instead of utilizing only the horizontal rack floor space, the invention utilizes the vertical dimension by providing height-adjustable rack feet. This allows slender utensils to be stored upright (vertical orientation) rather than laid down (horizontal orientation), effectively using the third dimension (height) to increase storage capacity while accommodating long utensils.
Solution Approach 2:
The adjustable height mechanism allows the rack configuration to change dynamically based on the utensil loading requirements. When slender utensils need to be stored, the rack feet can be adjusted to provide sufficient upright space, transforming the storage geometry from horizontal to vertical orientation.
3Ease of operation
If the rack is slid out for loading, then utensils can be easily loaded, but the rack may be unintentionally removed from the slide
Solution Approach 1:
A safety mechanism is incorporated that preemptively prevents the harmful action of accidental rack removal. The safety clip or detent mechanism is designed to engage automatically when the rack is in the loaded position, creating a preliminary protective action that counteracts the potential unintended removal force applied during normal loading operations.
Solution Approach 2:
A safety clip or detent mechanism acts as an intermediary element between the rack and the slide. This intermediary component facilitates easy loading by allowing smooth rack movement while simultaneously providing a mechanical interlock that prevents unintended removal, mediating between the conflicting requirements of ease of operation and reliable retention.
4Productivity
If the spray arm rotates close to the rack, then cleaning coverage is maximized, but slender utensils may obstruct the spray arm rotation
Solution Approach 1:
The vertical position parameter of the rack is made adjustable through height-modifiable rack feet. This allows the rack to be positioned at an optimized height that maximizes cleaning coverage while maintaining sufficient clearance for the spray arm to rotate freely without obstruction from slender utensils stored in the rack.
Data Source
AI summary
An automatic dishwasher comprises an open-faced cabinet defining a wash chamber and a utensil rack mounted within the wash chamber. The utensil rack comprises a frame mounted to the cabinet and a basket removably mounted to the frame, and the frame and the basket are configured such that the basket is vertically adjustable relative to the frame. Additionally, the basket comprises a plurality of basket elements that are complementary to form a whole basket. Further, the dishwasher includes a pair of slides for slidably mounting the frame to the cabinet. The slides comprise a track that slidably receives a wheel on the utensil rack and includes an access opening for insertion or removal of the wheel from the track. A closure for selectively closing the access opening prevents undesired removal of the wheel from the track.