Angled-Wall Arena Structure for Center-Focused Fighting

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Solution Overview

Problem

Existing arenas for fighting sports are enclosed by standard vertical walls that allow fighters to retreat, impede viewer access, and create obstacles for production equipment, limiting spectator engagement and enjoyment.

Innovation Solution

The arena features angled walls extending upwardly and outwardly at steep angles, incentivizing athletes to engage in the center and facilitating tactical plays, while eliminating traditional obstacles and allowing integration with natural environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If standard vertical walls are used to enclose the arena, then physical support and structural stability are provided, but fighters can retreat to the walls and avoid engagement, reducing spectator enjoyment

Engineering Contradiction:
Improvestructural stabilityVSAvoidfighter retreat behavior
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the geometric parameter of the walls from vertical to angled (sloping inward at 15-75 degrees from vertical). This parameter change transforms the wall function from a retreat destination to a tactical element that forces fighters toward the center while maintaining structural support capability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent converts the potential harm of fighters using walls for retreat into a benefit by designing angled walls that actively prevent retreat and promote center engagement. The walls become tactical features that enhance fight dynamics rather than obstacles

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If ropes or cages are added to enclose the arena, then fighter containment is improved, but viewing angles are blocked and production equipment access is impeded

Engineering Contradiction:
Improvefighter containmentVSAvoidviewing and production access
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent extracts and eliminates traditional enclosing elements like ropes and cages from the arena design. Fighter containment is achieved through the angled wall structure itself rather than additional enclosing components, thereby removing obstacles to viewing and equipment access

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The angled walls serve multiple functions simultaneously: they provide structural support, contain fighters, prevent retreat, and maintain clear viewing angles. This multi-functionality replaces the need for separate enclosing elements like ropes or cages

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

3Area of stationary object

If large imposing arena structures are built, then spectator capacity is increased, but the arena cannot blend with natural backgrounds and environments

Engineering Contradiction:
Improvespectator capacityVSAvoidenvironmental blending
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent uses the vertical dimension and angular orientation of walls to create a compact footprint that maintains spectator capacity while reducing horizontal spread. The angled walls project upward and inward, allowing the arena to occupy less ground space and blend better with natural environments

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

Data Source

PatentEP3737476B1Arena apparatus and methods of using and constructing same
Publication Date: 2025.09.03 SENSEI LTD
  • EP3737476B1 patent drawingFigure 1
  • EP3737476B1 patent drawingFigure 2
  • EP3737476B1 patent drawingFigure 3

AI summary

Arena apparatuses for staging a sport and methods of using and constructing same. The apparatus includes a floor and a wall, a bottom end of the wall located proximal to a floor perimeter, the wall extending upwardly and outwardly from the floor perimeter's vertical plane at an angle of greater than fifteen and less than sixty degrees. Alternate apparatuses include a floor frame for supporting a covering; a wall frame for supporting the covering, a bottom end of the wall frame located proximal to a floor frame perimeter, the wall frame extending upwardly and outwardly from the vertical plane of the perimeter at an angle of greater than fifteen and less than sixty degrees; and the covering for covering the floor frame and the wall frame to form a floor and a wall.