Seat Pad Breathability via Locking Hole Venting
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Solution Overview
Problem
Existing seat pads with three-dimensional net structures struggle to balance breathability and durability, as vent holes for improved breathability often compromise durability by aligning with load-bearing areas.
Innovation Solution
A seat pad design featuring a foam resin molding with a breathable three-dimensional net structure cushion body, incorporating pulling-in grooves and locking holes that allow air flow through the pad's reverse side without compromising durability by using the grooves as conduits and locking holes as vent holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vent holes are provided in the pad body at the lower side of the cushion body to improve breathability, then breathability is improved, but durability is reduced because the vent holes are arranged in load-bearing areas
Solution Approach 1:
The pulling-in groove, originally designed solely for securing the skin material, is given a dual function by serving as a vent hole conduit for air flow. The locking hole and wire assembly that secures the skin material simultaneously creates a passage for air to move between the cushion body and external environment, thereby improving breathability without requiring separate vent hole structures that would compromise durability
Solution Approach 2:
The skin material securing mechanism (pulling-in groove with wire and locking hole) serves itself by also functioning as the breathability improvement feature. The same structural elements used to attach the cover material to the pad body are utilized to create air passages, eliminating the need for additional components and maintaining structural integrity while providing ventilation
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
Enhances breathability and reduces stuffiness without reducing durability, as air can flow through the locking holes and grooves, maintaining the necessary strength for load-bearing areas.
Implementation Method 1
a breathable cushion body formed of a three-dimensional net structure made of linear bodies and provided in a pad surface side of the pad body
Implementation Method 2
air can go in and out of the breathable cushion body from the pad reverse side through the locking hole as a vent hole by using the pulling-in groove as a conduit
Data Source
AI summary
There is provided a seat pad 10 including a pad body 12 formed of a foam resin molding and a breathable cushion body 14 formed of a three-dimensional net structure made of linear bodies and provided in a pad surface side of the pad body 12. In the pad body 12, pulling-in grooves 22, 24 for pulling in a skin material 20 are provided on a pad surface, wires 26 are embedded along the pulling-in grooves, and locking holes 28 exposing part of the wires 26 are provided. The locking holes 28 are provided so as to pierce the pad to a pad reverse side and the breathable cushion body 14 is provided in a state where side surfaces thereof abut on the pulling-in grooves 22, 24 so as to communicate thereto.