Modular Dumbbell Set with Adder Weights for Space Reduction
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Solution Overview
Problem
Traditional dumbbell sets used in multi-user exercise facilities are heavy, costly, and occupy significant space, limiting their availability and accessibility, as they can only be used by one person at a time due to their weight and size, leading to wait times during peak hours.
Innovation Solution
A modular dumbbell set comprising a range of dumbbells and adder weights, where each dumbbell can be combined with adder weights to increase its weight, allowing multiple users to access different weights simultaneously by nesting and combining components, reducing the overall weight and space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional dumbbell set with a large range of weights is provided, then users can select appropriate weights for their fitness level, but the total weight and cost of the set increases significantly
Solution Approach 1:
The dumbbell set is divided into modular components: a base dumbbell and separate adder weights. Users can combine the base dumbbell with different numbers and types of adder weights to achieve various total weights. This segmentation allows the system to provide a wide weight range without requiring every possible dumbbell to be present simultaneously, thereby reducing the total weight of the set while maintaining versatility.
Solution Approach 2:
The adder weights are designed to be nested within or attached to the base dumbbell. The adder weights can be placed inside cavities of the base dumbbell or attached to its ends, creating a compact nested structure. This nesting approach allows multiple weight configurations to be stored in a small space and reduces the overall volume and weight of the complete set compared to traditional separate dumbbells.
2Adaptability or versatility
If multiple pairs of dumbbells are provided in five pound increments from five to one hundred pounds, then users have weight options, but the set requires significant floor space when stored on a rack
Solution Approach 1:
By segmenting the dumbbell set into a base unit and modular adder weights, the system reduces the number of separate dumbbell pairs needed. Instead of storing multiple complete dumbbell pairs (5, 10, 15, ..., 100 pounds), the set stores one base dumbbell and several adder weights, dramatically reducing the space required for storage while maintaining the ability to create any weight in the range.
Solution Approach 2:
The adder weights are designed to nest within or attach to the base dumbbell, creating a compact configuration that minimizes the space required for storage. This nested arrangement allows the entire set to be stored in a small area, eliminating the need for large racks that would be required to store traditional separate dumbbell pairs.
3Ease of manufacture
If only one set of dumbbells is provided in a multi-user facility, then the facility keeps costs low, but multiple users cannot exercise simultaneously with the same weight
Solution Approach 1:
The modular design segments the dumbbell into a base unit and detachable adder weights. This allows different users to combine the base dumbbell with different adder weights to create identical total weights simultaneously. For example, two users can each have a 30-pound dumbbell by combining a 10-pound base with 20-pound adder weights, enabling simultaneous use without requiring multiple complete sets.
Solution Approach 2:
The base dumbbell serves as a universal component that can be combined with various adder weights to create multiple weight configurations. This multi-functionality allows a single base unit to support multiple users needing the same weight, as each user can attach their own set of adder weights to the shared base dumbbell, thereby increasing simultaneous user capacity without proportionally increasing cost.
Data Source
AI summary
A set of dumbbells comprises a plurality of dumbbells of different weights with the dumbbells having a common length. A plurality of adder weights is provided with each adder weight having a cavity that is sized to receive the common length of any one of the dumbbells. Any one of the dumbbells is dropped down into the cavity of any one of the adder weights. A slide retainer is then slid into a slideway on the any one adder weight to overlie the dumbbell and secure the dumbbell to the any one adder weight. The slide retainer has a window therein to allow a user to reach through the slide retainer and grip a hand grip of the dumbbell.