Multi-use Exercise Bag with Removable Weights
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Solution Overview
Problem
Conventional exercise equipment, such as dumbbells and kettlebells, are often non-portable, single-use, and fixed in weight, limiting user flexibility and increasing shipping costs due to their weight.
Innovation Solution
A multi-use exercise bag system with removable weights that can be filled to different weights and stacked, allowing users to adjust the total weight and use the weights individually or collectively for various exercises, featuring a soft-sided design and integrated handles for versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional exercise equipment uses fixed weight construction, then manufacturing is simplified, but adaptability and versatility are reduced
Solution Approach 1:
The exercise equipment is divided into modular components: an outer bag and multiple inner weight bags that can be independently filled and stacked. This segmentation allows users to create different weight combinations by selecting and stacking individual inner bags within the outer bag, providing weight adjustability without requiring complex adjustable mechanisms in each component.
Solution Approach 2:
The outer bag serves multiple functions: it acts as a container for transporting inner weight bags, provides additional weight when all inner bags are inserted, and serves as the exercise equipment itself when used with inner bags. This multi-functionality reduces the need for separate equipment pieces, maintaining simplicity while enhancing versatility.
2Adaptability or versatility
If exercise equipment is designed as single-use fixed weight, then device complexity is minimized, but adaptability for different exercises and muscle groups is limited
Solution Approach 1:
The equipment transitions from static fixed-weight design to a dynamic configuration system where users can adjust the number and combination of inner weight bags based on exercise requirements. The handles on the outer bag enable different grip positions and exercise variations, allowing the same basic structure to adapt to multiple exercise types and muscle groups.
3Adaptability or versatility
If weights are pre-filled and sealed at manufacture, then ease of manufacture is improved, but user flexibility to adjust weight is lost
Solution Approach 1:
The inner weight bags are pre-filled and sealed at manufacture with standard weights, simplifying the manufacturing process. The preliminary action of filling occurs during production rather than requiring user assembly, maintaining manufacturing efficiency while still providing user flexibility through the selection and combination of pre-filled bags.
4Adaptability or versatility
If heavy equipment is shipped filled, then product readiness is improved, but shipping costs increase due to weight
Solution Approach 1:
The total weight is segmented into multiple lighter inner bags that are shipped separately within the outer bag. This segmentation reduces the peak weight during shipping compared to a single filled equipment piece, while maintaining product readiness as the inner bags are pre-filled and require no assembly by the user.
Data Source
AI summary
An exercise kit includes an outer bag having a cover and a cavity therein configured to receive one or more removable weights therein. The outer bag has a plurality of spaced apart handles positioned in one or more directions along the outer bag, allowing the bag to be used in one more different exercises. The kit includes a plurality of weight bags, which are fillable by a user to form the removable weights. The weight bags have a closure mechanism having connectable ends that each extend beyond the length of the opening of the weight bag, such that when the inner bags are each filled to a fill level indicative of a selected weight, the opening can be folded over, the bag compressed to remove excess air, and the opening rolled down to the filling. The connectable ends are then connected to form an integral handle portion of the removable weight.