Sign Post System Using Slide Hammer for Quick Installation

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Solution Overview

Problem

Conventional large signs for real estate marketing are cumbersome and labor-intensive to install, especially for professionals who need to fit them into vehicles without tools, and existing solutions are messy and impractical for daily use.

Innovation Solution

A sign post system featuring a lightweight, recyclable vinyl sign with a slide hammer and concealed stake assembly that allows for quick installation and removal, enabling a 3 to 7 foot tall sign to be set up in minutes, using a slide hammer that can be lifted 10 to 20 times to embed a spike, and allowing the sign to be easily transported and reused.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a large, tall sign is used to market a listing, then marketing visibility is improved, but the sign becomes difficult to transport in a vehicle

Engineering Contradiction:
Improvemarketing visibilityVSAvoidtransportability
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The sign system is divided into separate components: a hollow sign post that can be disassembled into sections, allowing the sign to be broken down into manageable pieces for vehicle transport while maintaining the ability to assemble a tall, visible sign at the location

Inventive Principle:
Principle #1Segmentation

2Strength

If a conventional wood sign weighing up to 50 pounds is used, then the sign provides sufficient structural strength, but it becomes cumbersome and difficult to install without a truck and tools

Engineering Contradiction:
Improvestructural strengthVSAvoidinstallation ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The sign post material is changed from heavy conventional wood to lightweight vinyl, dramatically reducing the weight from 50 pounds to approximately 8-13 pounds while maintaining sufficient structural strength through the hollow tubular design and wall thickness optimization

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The slide hammer assembly serves multiple functions: it acts as both the hammering tool for installing the post and as the anchoring mechanism itself, eliminating the need for separate installation tools and reducing the weight the installer must handle

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If a 7 foot tall sign is installed using a shovel or post hole digger, then the sign can be securely installed, but the process becomes very labor intensive and messy

Engineering Contradiction:
Improveinstallation securityVSAvoidinstallation speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The slide hammer assembly is designed to be self-contained and self-operating, allowing a single person to install the sign post through simple lifting and dropping motions without requiring assistance from others or the use of complex tools like shovels or post hole diggers

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The traditional mechanical system of shovels and post hole diggers is replaced with a slide hammer mechanism that uses controlled impact force to drive the post into the ground, significantly reducing the physical effort and time required for installation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Weight of moving object

If a slide hammer assembly is designed to be lightweight (8-13 pounds), then it can be easily transported and handled, but it requires more repetitions (10-20 times) to install the post

Engineering Contradiction:
Improvehammer weightVSAvoidinstallation time
Core Design Contradiction:
Weight of moving objectVSLoss of time

Solution Approach 1:

The installation process uses periodic repetitive motion, where the lightweight hammer is lifted and dropped 10-20 times in sequence, with each strike progressively driving the post deeper into the ground. This periodic action allows the lightweight hammer to accumulate sufficient impact force over multiple cycles

Inventive Principle:
Principle #19Periodic action

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

Enables fast, tool-free installation and removal of large signs by a single person, reducing labor and maintaining a clean vehicle, while providing durable, long-lasting, and recyclable signage that enhances marketing visibility and cost-effectiveness.

Implementation Method 1

a slide hammer that can be lifted 10 to 20 times to embed a spike

Methodology Applied
Scientific EffectImpact force: Impact Force

Data Source

PatentUS8938900B1Sign post system
Publication Date: 2015.01.27 HALLE JOHN
  • US8938900B1 patent drawing
  • US8938900B1 patent drawing
  • US8938900B1 patent drawing

AI summary

A sign post system includes an elongated slide spike, and an impact anvil mounted to the slide spike at a location intermediate the spike ends. An elongated slide hammer column assembly slides onto the slide spike to contact the impact anvil while using the slide spike as a guide to deliver a force to the slide spike to drive the slide spike into the ground. A hollow sign post structure is configured to slide over the slide spike and cover at least a portion of the slide spike above the impact anvil, the slide spike and sign post configured to support a sign structure after installation. In an exemplary embodiment, the system parts are fabricated of plastic materials.