Stowable wheeled weight training sled
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Solution Overview
Problem
Existing weight sleds face challenges in transitioning from outdoor to indoor use due to space constraints and the need for stable, compact, and lightweight designs that address frictional sliding and stability issues, while maintaining adjustable resistance.
Innovation Solution
A wheeled weight training sled with rotatable wheels, pivotable push handles, and a braking mechanism that allows for adjustable resistance, enabling compact storage and versatile exercise options, including a wall-hanging bracket for space-efficient use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional weight sleds with skids are used, then frictional resistance is provided for exercise, but substantial open space is required and flooring damage occurs due to abrasive sliding
Solution Approach 1:
The patent replaces the traditional skid-based friction mechanism with a wheeled mechanism. Instead of sliding skids that create abrasive friction, the invention uses wheels with brakes to provide resistance, eliminating the need for substantial open space and protecting flooring from damage while maintaining the exercise resistance function
2Object-affected harmful factors
If wheeled versions of blocking sleds are used, then frictional skidding is eliminated, but stability is lost requiring additional space or onboard steering
Solution Approach 1:
The patent employs dynamically adjustable push handles that can pivot between a raised position during exercise and a lowered stowage position. This dynamic adjustment allows the handles to provide stability when needed during exercise, then clear the path when the sled is in motion, eliminating the need for onboard steering while maintaining control
Solution Approach 2:
The invention changes the spatial parameter of the push handles by pivoting them between raised and lowered positions. This parameter change allows the handles to transition from a stable support position during exercise to a retracted position during movement, providing stability when required without compromising mobility
3Stability of the object's composition
If stable wheeled weight training sleds are used, then exercise stability is improved, but device size and weight increase
Solution Approach 1:
The patent segments the push handles into a movable first pair and a fixed second pair. The first pair pivots to provide stability during exercise, while the second pair remains fixed for structural support. This segmentation allows stability to be achieved locally at the handle assembly without increasing the overall sled weight
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 sled provides stable, adjustable resistance and compact storage, suitable for confined spaces, enhancing indoor exercise flexibility and convenience.
Implementation Method 1
a brake for applying resistance to rotation of at least one of the wheels
Implementation Method 2
at least two longitudinally spaced rotatable wheels for supporting the chassis a vertical distance above a support surface
Data Source
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AI summary
A weight training sled and wall hanging bracket set for supporting the weight training sled in an elevated vertical stowage position. The push handles on the sled are pivotable as a unit about a laterally extending pivot axis as between an upward use position and a lowered stowage position extending towards the second longitudinal end of the chassis. The wall hanging bracket set includes an upper bracket for attachment to a vertical surface and supportively contact a second longitudinal end of the sled at two laterally spaced contact points, and a lower bracket for attachment to the vertical surface and supportively contact a first longitudinal end of the sled at a single contact point.