Fence Post Selectively Covered Molded Channel

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Solution Overview

Problem

Existing modular plastic fence post systems face challenges with stability, especially at picket or rail connections, and often compromise on aesthetics and flexibility in rail-to-rail configurations due to complex channel designs that limit installation ease and structural support.

Innovation Solution

The development of a fence post with selectively covered, molded channels that can be partially uncovered to receive and support pickets and rails, allowing for various configurations and additional structural support without visible channels, thus maintaining aesthetic appeal and ease of installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If channels are incorporated into the fence post to receive pickets and rails, then structural support and stability are improved, but aesthetic pleasantness deteriorates due to visible channels

Engineering Contradiction:
Improvestructural supportVSAvoidaesthetic pleasantness
Core Design Contradiction:
Stability of the object's compositionVSShape

Solution Approach 1:

The channel is extracted from the external view by placing it inside the fence post, where it is covered by the post's outer surface. The channel remains functional for receiving pickets and rails but is hidden from view, thus maintaining aesthetic pleasantness while providing structural support.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The channel is nested within the fence post structure, with the channel positioned inside the post and covered by the outer surface. This nesting allows the channel to be functional while hidden, resolving the contradiction between visibility and structural support.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If extensive internal workings are incorporated into the fence post channels, then structural support capability is improved, but device complexity increases

Engineering Contradiction:
Improvestructural support capabilityVSAvoidinternal workings complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The fence post is segmented into distinct functional zones: the outer surface for aesthetics, the internal channel for structural support, and the interior space for optional additional supports. This segmentation allows each component to perform its function independently without requiring complex integration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Additional structural supports are extracted as separate removable components that can be inserted into the interior space of the post. This extraction simplifies the manufacturing of the post itself while providing the option for enhanced structural support when needed.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If pickets are installed by sliding them vertically into the channel from top to bottom, then installation direction is constrained, but installation ease deteriorates in situations with overhanging matter

Engineering Contradiction:
Improveinstallation easeVSAvoidinstallation flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The channel is oriented horizontally rather than vertically, allowing pickets to be inserted from the side rather than from above. This dimensional change enables installation in areas with overhanging matter while maintaining ease of operation.

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

Solution Approach 2:

The channel cover is designed to be removable, allowing the installation direction and method to be dynamically adjusted based on the specific installation situation. This provides versatility while maintaining ease of operation.

Inventive Principle:
Principle #15Dynamics

4Stability of the object's composition

If pickets are slid into the channel with excessive contact, then structural support is improved, but friction generates unwanted heat and causes parts to stick

Engineering Contradiction:
Improvestructural supportVSAvoidfriction heat
Core Design Contradiction:
Stability of the object's compositionVSTemperature

Solution Approach 1:

A channel cover is introduced as an intermediary component between the picket and the channel. The cover provides a smooth surface for picket insertion, reducing friction and heat generation while still allowing the picket to be securely received by the channel.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The channel cover acts as a thin film or shell that interfaces with the picket, providing low-friction contact during insertion while the rigid channel provides structural support. This separation of functions reduces heat generation.

Inventive Principle:
Principle #30Flexible shells and thin films

5Adaptability or versatility

If different fence post configurations are used for different rail-to-rail arrangements, then adaptability is improved, but device complexity and inventory requirements increase

Engineering Contradiction:
Improverail-to-rail configuration adaptabilityVSAvoidpost configuration variety
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single universal fence post design is created with a horizontal channel that can accommodate various rail-to-rail configurations. The channel's orientation and the removable cover allow the same post to be used in different arrangements, eliminating the need for multiple specialized post types.

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

Solution Approach 2:

The removable channel cover enables dynamic reconfiguration of the post's functionality. By removing or repositioning the cover, the same post can adapt to different installation scenarios and rail configurations without requiring different post designs.

Inventive Principle:
Principle #15Dynamics

6Adaptability or versatility

If channels are placed on multiple sides of the fence post to accommodate future modifications, then adaptability is improved, but aesthetic pleasantness deteriorates due to visible unused channels

Engineering Contradiction:
Improvemodification capabilityVSAvoidaesthetic pleasantness
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

Channels are extracted to the interior of the post where they can be covered by the outer surface. This allows multiple channels to be provided for future modifications without compromising aesthetic pleasantness, as the channels are hidden from view.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Multiple channels are nested within the interior space of the post, covered by the outer surface. This nesting allows multiple functional channels to coexist without being visible, maintaining aesthetics while providing adaptability for future modifications.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS8132791B2Fence post with selectively covered, molded channel
Publication Date: 2012.03.13 STUCKER JUSTIN D
  • US8132791B2 patent drawing
  • US8132791B2 patent drawing
  • US8132791B2 patent drawing

AI summary

Disclosed is a fence post with selectively covered, molded channels for use in modular fences. The post includes at least one longitudinally-extending channel that is covered by the exterior surface of a side of the fence post in such a way that channel is not visible from the exterior of the fence post until the covering portion of the fence post is cut away, in whole or in part, to make the channel accessible. The channel cover may be removed, in whole or in part, to allow longitudinal ends of pickets to be slid into the channel, either horizontally or vertically according to the selected portion of the channel cover that is removed. In this way, one fence post design may be used to stably support pickets connected on any of the sides of the post while leaving the other sides smooth in external appearance.