Variable Hardness Punching Bag with Interchangeable Shells

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Solution Overview

Problem

Existing punching bags require time-consuming and laborious processes to vary the filler material for changing the hardness profile, making it inconvenient to adjust for different workout routines.

Innovation Solution

A variable hardness punching bag design featuring a core with a first hardness profile and attachable auxiliary shells with a second hardness profile, including a punching shell and a kicking shell, facilitated by attachment straps for easy switching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If filler material quantity is varied to change hardness profile, then hardness adaptability is improved, but operation time and labor intensity increase significantly

Engineering Contradiction:

Improvehardness profile adaptabilityVSAvoidtime to adjust filler material

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The punching bag is divided into a core component and multiple interchangeable auxiliary shells, each with different hardness profiles. Users can quickly switch between shells to change the overall hardness profile without adjusting filler material, thus improving adaptability while reducing adjustment time.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention changes the physical state of the punching bag by using pre-manufactured auxiliary shells with different hardness characteristics. Instead of gradually changing filler material quantity, users directly swap shells to achieve immediate parameter change in hardness profile.

Inventive Principle:

Principle #35Parameter changes

2Strength

If filler material quantity is increased to harden the bag, then punching hardness is improved, but the adjustment process becomes more laborious and messy

Engineering Contradiction:

Improvepunching bag hardnessVSAvoidease of hardness adjustment

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The punching bag system is segmented into a core and separate auxiliary shells. Each shell is pre-manufactured with specific hardness properties, allowing users to select and attach the appropriate shell for desired punching hardness without manual filler adjustment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The auxiliary shells are designed as replaceable components that can be easily attached and detached. Rather than permanently modifying the bag structure, users can swap shells as needed, making the adjustment process simple and clean.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Adaptability or versatility

If traditional filler material adjustment is used, then hardness variation is achieved, but the process is time consuming and laborious

Engineering Contradiction:

Improvehardness variation capabilityVSAvoidworkout preparation efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The auxiliary shells are pre-manufactured with specific hardness characteristics before use. This preliminary preparation allows users to simply attach the desired shell during workout setup, eliminating the time-consuming process of gradually adding or removing filler material.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11628346B2Adjustable hardness punching bag

Publication Date: 2023.04.18 TAYLOR CHAD

AI summary

A variable hardness punching bag is disclosed herein. The punching bag comprises a core having a first hardness profile; and at least one auxiliary shell attachable to the core, wherein the at least one auxiliary shell has a second hardness profile different to the first hardness profile. The auxiliary shells include a punching shell and a kicking shell, wherein the punching shell is denser and harder relative to the kicking shell. The punching and kicking shells include attachment straps for facilitating attachment to the core.