Flexible Grappling Dummy Guard Posture via Elasticity
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Solution Overview
Problem
Existing grappling dummies lack realistic defensive postures, exposing the chest and limbs, making guard passing and joint locks unrealistic, and often require complex mechanical parts that are costly and prone to breakage.
Innovation Solution
A non-mechanical, humanoid-shaped grappling dummy with flexible and resilient limbs that can maintain a realistic guard position without mechanical parts, using a filling material and envelope design that allows for realistic bending and retraction to a proper guard position, simulating supine, seated, and turtle postures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-setting limbs of the dummy is used to provide realistic defensive or attack position, then the training realism is improved, but the manufacturing cost increases and the dummy becomes prone to breakage and requires regular maintenance
Solution Approach 1:
The patent replaces the mechanical system of pre-settable limbs with a flexible material system. The dummy limbs are constructed from flexible, resilient material that can be manually positioned into guard positions and will naturally return to those positions through material elasticity, eliminating complex mechanical joints, motors, and control systems while maintaining training realism.
Solution Approach 2:
The patent changes the physical parameters of the dummy material to achieve the desired functionality. By selecting materials with specific flexibility and resilience characteristics, the dummy can be manually positioned into realistic guard positions and will naturally return to those positions without mechanical assistance, resolving the contradiction between training realism and device complexity.
2Ease of manufacture
If the dummy lies flat on the ground with chest and limbs exposed, then the manufacturing simplicity is maintained, but the training realism deteriorates as it cannot provide realistic defensive positions
Solution Approach 1:
The patent changes the physical parameters of the dummy material to enable manual positioning. The flexible, resilient material allows the dummy to be shaped into realistic guard positions with limbs and torso configured defensively, while still being manufactured as a simple envelope structure without complex mechanical components.
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
The dummy provides a cost-effective, durable, and realistic training tool that holds a proper defensive posture, allowing for realistic grappling techniques without the need for maintenance or mechanical parts, enhancing training effectiveness and safety.
Implementation Method 1
each of the torso, head, two arms and two legs are flexible, resilient to bending and retract to the guard position after bending
Data Source
AI summary
A grappling dummy of humanoid shape is described. The grappling dummy offers a strategically sound and versatile posture for more realistic martial arts training by holding a realistic guard position. The dummy is comprised of an envelope, to be filled with any material to give it the desired weight and consistency. When filled, the tensile strength of the envelope and filling allow the limbs of the grappling dummy to retract to their resting guard position when extended. Due to the dummy's resting posture with knees above the hip line and elbows in front of and covering the torso, this grappling dummy may be placed in a variety of positions including supine, seated, and turtle, and thus offers a more versatile and realistic training experience.