Articulated Drawer Sealing Surface for Larger Appliance Volume

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Solution Overview

Problem

Appliance drawers often have insufficient capacity when manufactured to match adjacent cabinetry, resulting in inadequate drawer volume despite matching drawer faces.

Innovation Solution

An articulated sealing surface, or transom, is pivotally mounted to the drawer, bridging the gap between the drawer face and the opening, allowing the drawer opening to be larger than the face while maintaining a seal when closed, thereby increasing drawer volume.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the drawer face is manufactured to match the size and shape of cabinet drawers, then the drawer face alignment with cabinetry is improved, but the drawer volume is reduced

Engineering Contradiction:
Improvedrawer face alignmentVSAvoiddrawer volume
Core Design Contradiction:
ShapeVSVolume of stationary object

Solution Approach 1:

The patent extends the drawer in the depth dimension (front-to-back) beyond what would be permitted if the drawer face matched cabinet dimensions. By allowing the drawer body to protrude past the cabinet front face, the design gains additional volume while maintaining a decorative face that matches cabinet aesthetics. This dimensional extension resolves the contradiction between matching appearance and maximizing storage capacity.

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

2Volume of stationary object

If the drawer opening is made larger to increase drawer volume, then the drawer capacity is improved, but the sealing effectiveness deteriorates

Engineering Contradiction:
Improvedrawer volumeVSAvoidsealing effectiveness
Core Design Contradiction:
Volume of stationary objectVSReliability

Solution Approach 1:

The sealing system is segmented into multiple components: a gasket on the drawer face, a transom bridging the gap between the drawer face and opening, and a seal on the transom that contacts the cabinet frame. This segmentation allows the drawer opening to be larger than the drawer face while maintaining sealing effectiveness through the distributed sealing elements that bridge the gap and contact the frame.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transom acts as an intermediary element between the drawer face and the cabinet opening. It bridges the gap created by the smaller drawer face, providing a sealing surface that contacts the cabinet frame while allowing the drawer body to extend deeper into the opening for increased volume. The transom mediates between the need for a larger opening and the need for effective sealing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides an appliance drawer with increased volume while maintaining alignment with adjacent cabinetry, enhancing usability by allowing a larger opening while ensuring a secure seal.

Implementation Method 1

Generally these seals are magnetic or compression seals that are affixed to the back face of the door or drawer so that the seal contacts the frame or housing of the appliance when the door or drawer is closed.

Methodology Applied
Scientific EffectMagnetic seal: Magnetism

Data Source

PatentUS8172346B2Articulated sealing surface
Publication Date: 2012.05.08 HAIER US APPLIANCE SOLUTIONS INC
  • US8172346B2 patent drawing
  • US8172346B2 patent drawing
  • US8172346B2 patent drawing

AI summary

An appliance including a housing have an opening, a drawer having a front side and a back side, the drawer being configured for insertion into the opening, a drawer face coupled to the front side, the drawer face having a gasket circumscribing the drawer face and at least one dimension of the drawer face is smaller than a respective dimension of the opening so as to form a gap between the drawer face and the opening on at least one side of the drawer face, and a transom pivotally mounted to the drawer, the transom being configured to substantially bridge the gap between the drawer face and the opening and sealingly engage the gasket when the drawer is in a closed position.