Tent Vent Pole Structure for Rainfly Airflow and Condensation

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Solution Overview

Problem

Tents and shelters often suffer from inadequate ventilation, leading to stale air, condensation, and temperature issues due to the rain fly not providing optimal airflow, especially when breezes are not directed properly.

Innovation Solution

A vent pole system is introduced, made of fiberglass, which supports a vent flap in an open position for improved ventilation while being easily removable and collapsible for storage, spanning between the vent flap edges along the rain fly's center line or to its center point, enhancing airflow and drainage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a rain fly is extended almost to the ground to provide coverage, then protection from rain and insects is improved, but ventilation is worsened because air and condensation accumulate underneath the rain fly

Engineering Contradiction:
Improveprotection from rain and insectsVSAvoidcondensation and stale air accumulation
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The rain fly is segmented into two functional zones: an upper covered portion for protection and a lower vented portion with openings for airflow. This segmentation allows the structure to simultaneously provide rain protection while enabling ventilation to prevent condensation accumulation underneath.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the rain fly have different properties: the upper portion is solid for protection, while the lower portion has openings or vents for airflow. This local differentiation of properties allows the same structure to serve both protective and ventilating functions.

Inventive Principle:
Principle #3Local quality

2Object-generated harmful factors

If the vent flap is kept open to improve ventilation, then airflow is improved, but the vent flap may not remain stable in the open position

Engineering Contradiction:
Improveventilation and airflowVSAvoidvent flap position stability
Core Design Contradiction:
Object-generated harmful factorsVSStability of the object's composition

Solution Approach 1:

The vent flap is designed to be movable rather than fixed, allowing it to dynamically adjust between open and closed positions. The flap can be propped open for ventilation or closed for protection, providing adaptability to different weather conditions while maintaining stability in each position.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A prop rod or support element acts as an intermediary between the vent flap and the rain fly structure, providing mechanical support to hold the flap in the open position. This intermediary component enables stable ventilation without requiring the flap to be permanently fixed.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If a rigid structure is used to support the vent flap in the open position, then ventilation stability is improved, but ease of storage and transport is worsened

Engineering Contradiction:
Improvevent flap support stabilityVSAvoidstorage and transport convenience
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The vent support structure uses flexible or telescopic elements rather than rigid fixed components. The prop rod can be extended to provide stable support when needed and collapsed or removed for compact storage, combining structural stability with ease of transport.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support structure is divided into separate components that can be independently assembled and disassembled. The prop rod and mounting elements can be quickly deployed to provide stable vent support and then packed away, maintaining stability during use while enabling convenient storage.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20120125389A1Vent for a tent or shelter
Publication Date: 2012.05.24 THE COLEMAN CO INC
  • US20120125389A1 patent drawing
  • US20120125389A1 patent drawing
  • US20120125389A1 patent drawing

AI summary

A vent is provided for a tent or shelter. The vent is supported by a centrally located vent pole, the vent pole running lengthwise with the vent flap. The vent pole is formed of a construction that is resilient enough to support the vent during use, but is flexible enough so that the vent may be collapsed during storage.