Sign Assembly with Resilient Spring Rods
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sign assemblies are complex to assemble due to the need for u-shaped metal brackets and common axles, which can flex under weight, causing the base to drag when moved.
Innovation Solution
A sign assembly with a base and panel connected via resilient spring members with rods that slidably enter panel openings, and wheel assemblies housed in base cavities that form a tight fit as the base cools, reducing complexity and preventing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If u-shaped metal brackets and screws are used to secure springs to the panel, then the springs are firmly attached, but the assembly complexity and time increase
Solution Approach 1:
The patent combines the spring and bracket functions into a single integrated spring member. The spring member includes a resilient portion that attaches to the base and a rod portion that extends through the panel, eliminating the need for separate u-shaped brackets and screws. This integration maintains secure attachment while significantly reducing assembly complexity and component count.
Solution Approach 2:
The spring member serves multiple functions: it provides resilient support, secures the panel to the base, and acts as a structural connector. The rod portion of the spring member both supports the panel and prevents lateral movement, combining multiple attachment functions into a single component that simplifies the overall assembly.
2Strength
If a common axle is used to attach wheels to the base, then the wheels are secured, but the axle flexes under ballast weight causing the base to drag
Solution Approach 1:
The patent divides the wheel attachment system into separate individual wheel assemblies, each with its own axle and housing, rather than using a single common axle. This segmentation allows each wheel assembly to independently support its share of the ballast weight, preventing the flexing and dragging problems associated with a common axle that must support the entire weight.
Solution Approach 2:
The wheel assembly is nested within a housing that is received in a cavity formed in the base. The housing provides structural support and the cavity in the base provides additional support, creating a nested structure that distributes the weight load through multiple components rather than relying on a single common axle.
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
Simplifies assembly, secures the panel upright, and prevents base dragging during movement by providing a stable and frictional attachment system.
Implementation Method 1
The spring members include a resilient portion that includes attachment means at a first end to enable attachment of the spring members to the base
Implementation Method 2
A pair of wheel assemblies is secured within respective cavities on the bottom surface
Data Source
AI summary
A sign assembly includes a base, a pair of spring members, and a panel. The spring members include a resilient portion that includes attachment means at a first end to enable attachment of the spring member to the base. The spring members also include a generally straight rod that extends from a second end of the resilient portion. The panel defines a pair of openings at a lower edge configured to slidably receive the rod of the spring members. The amount by which the rod slides into the panel is configured to secure the panel in an upright position.