Undermount Sink Frame Assembly for Heavy Rim-Flange Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing undermount sink support structures fail to provide adequate support to triple-bowl sinks, leading to flexing and delamination of the silicon joint, and often require complex installation and maintenance, with issues such as sound transmission and distortion of cabinet sides.
Innovation Solution
A mechanical support structure that fully supports the sink's rim flange on all four sides with a frame assembly that can be installed before or after the countertop, using Sorbothane visco-elastic polymer vibration dampening strips to reduce sound transmission and a design that compresses the silicon joint to prevent delamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sink is attached directly to the underside of the countertop, then the installation is simple, but the countertop is at its weakest at the sink location and cannot support heavy sinks
Solution Approach 1:
A support structure with vertical supports and horizontal rails is introduced as an intermediary between the countertop and the sink. The vertical supports attach to the cabinet sides and the horizontal rails attach to the countertop underside, creating a mediator framework that distributes the sink's weight across multiple attachment points rather than concentrating it at the weak sink location.
2Strength
If a permanent wooden frame is constructed to support the sink, then the support capacity is sufficient, but the silicon joint becomes contaminated and difficult to maintain
Solution Approach 1:
The support structure is divided into separate modular components: vertical supports that attach to the cabinet, horizontal rails that attach to the countertop, and adjustment screws that connect the rails to the sink. This segmentation allows the sink to be independently removed and reinstalled without disturbing the permanent wooden frame or silicon joint, enabling easy maintenance of the silicon sealant.
Solution Approach 2:
Adjustment screws are used to create a dynamic connection between the horizontal rails and the sink's rim flange. These screws can be loosened to allow the sink to be lowered for maintenance or replacement, and tightened to secure the sink in position. This dynamic adjustment mechanism facilitates easy repair and maintenance of the silicon joint.
3Ease of operation
If adjustment screws are used to support the sink, then the sink can be adjusted and removed, but the support structure and sink flex as weight is applied and released
Solution Approach 1:
Multiple adjustment screws are distributed around the sink's rim flange to merge multiple support points into a unified support system. This distributes the support function across several locations, reducing flexing and improving stability while maintaining adjustability. The screws work together as a system rather than isolated points.
Solution Approach 2:
The support structure uses a composite approach combining vertical supports (attached to cabinet), horizontal rails (attached to countertop), and adjustment screws (attached to sink). This composite structure distributes loads across different materials and attachment points, reducing flexing while maintaining the ability to adjust and remove the sink.
4Ease of manufacture
If the support structure sits on top of the cabinet's vertical elements, then installation is straightforward, but reinstallation is tricky due to lack of working space
Solution Approach 1:
The vertical supports are designed with adjustable features that allow them to be dynamically repositioned during reinstallation. The adjustment screws and mounting mechanisms can be loosened to create working space, and then tightened to secure the supports in their proper positions, making reinstallation as easy as the initial installation.
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 support structure effectively transfers weight from the countertop to the cabinet sides, reducing distortion and delamination, allowing for easy maintenance and supporting heavy sinks with a safety factor of 2, while minimizing sound transmission and facilitating easy installation and maintenance.
Implementation Method 1
using Sorbothane visco-elastic polymer vibration dampening strips to reduce sound transmission
Implementation Method 2
a design that compresses the silicon joint to prevent delamination
Data Source
AI summary
An undermount support for an appliance and a method for using the support, the support including a frame that is: (a) assembled around the exterior periphery of the appliance; (b) located in supporting contact below the underside of a rim flange of the appliance; and (c) attached to cabinetry supporting a countertop or cooktop. The frame thereby enables the cabinetry to support the appliance by the rim flange.