Ice Maker Door Clearance for Dispenser Interference

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Solution Overview

Problem

Commercial ice makers require inconvenient on-site modifications or the use of shims to access the interior for maintenance, as their doors interfere with the protruding components of ice dispensers, leading to improper mounting and performance issues.

Innovation Solution

A prefabricated ice maker design with a housing that allows the door to open without interference from the ice dispenser's protruding components, featuring a cabinet mounted directly on the ice receptacle with a door configuration that clears the dispensing unit enclosure, eliminating the need for retrofit parts or site modifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the door is positioned to close flush with the cabinet bottom, then the mounting fit and finish is improved, but the door cannot open without interfering with the ice dispenser components

Engineering Contradiction:
Improvemounting fit and finishVSAvoiddoor accessibility
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The door is positioned at a higher vertical level (different dimension) relative to the cabinet bottom, creating clearance space between the door bottom and the ice dispenser protruding components. This dimensional adjustment allows the door to open fully without interference while maintaining a clean mounted appearance through proper spacing.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the door is positioned higher to clear the dispensing unit enclosure, then the door can open freely, but the mounting fit and finish becomes improper

Engineering Contradiction:
Improvedoor accessibilityVSAvoidmounting fit and finish
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The vertical position parameter of the door is optimized to a specific height above the cabinet bottom. This parameter change ensures the door clears the dispensing unit enclosure when opening, while the selected height maintains proper mounting appearance and fit with the cabinet structure.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If on-site modifications or shims are used to resolve door interference, then the door accessibility is improved, but the device complexity and manufacturing precision are compromised

Engineering Contradiction:
Improvedoor accessibilityVSAvoidretrofit parts and site modifications
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The door position is pre-configured during manufacturing at the correct height above the cabinet bottom, incorporating the necessary clearance for door operation in advance. This preliminary action eliminates the need for on-site modifications, shims, or retrofit parts, maintaining both device simplicity and manufacturing precision.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3851772B1Ice maker, ice dispensing assembly and method of deploying an ice maker
Publication Date: 2023.11.22 TRUE MFG CO INC
  • EP3851772B1 patent drawingFigure 1~2
  • EP3851772B1 patent drawingFigure 3
  • EP3851772B1 patent drawingFigure 4

AI summary

An ice maker (112) includes a prefabricated cabinet (122) with a base that defines a bottom of an ice maker housing (120). An access side of the cabinet (122) defines a doorway for accessing an ice making device (130) in the housing (120). A prefabricated door (124) for opening and closing the doorway has a bottom spaced apart above the bottom of the housing (120). The ice maker (112) can be mounted on a prefabricated receptacle (30) so that the bottom of the housing (120) is flush with a top of the receptacle (30) and the door (124) can clear a protruding dispenser unit as it swings on its hinge. The prefabricated cabinet (122) may include a door mount that couples the door (124) to the cabinet (122) so that the bottom of the door (124) is spaced above the bottom of the ice maker (112).