Foldable Weightlifting Bench With Pivotable Arms
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Solution Overview
Problem
Prior art weightlifting benches and apparatuses have a storage profile that cannot fit in small spaces, such as under a typical bed frame, due to their static weightlifting bar support arms.
Innovation Solution
A foldable low-profile weightlifting bench with pivotable support legs and pivotable weightlifting bar support arms, allowing the bench to be folded into a storage configuration that fits under a typical bed frame, featuring a main frame with parallel supports, a flat platform, and pivoting support arms and legs that adjust between stored and in-use positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If static weightlifting bar support arms are used, then structural stability is maintained, but storage space requirement increases
Solution Approach 1:
The weightlifting bar support arms are designed to be pivotable rather than static, allowing them to rotate between a horizontal position during use and a vertical position during storage. This dynamic transformation enables the bench to maintain structural stability during exercise while reducing storage footprint when not in use.
Solution Approach 2:
The support arms are segmented from the main bench body through pivot connections, allowing independent movement of the support arms relative to the bench frame. This segmentation enables the support arms to be positioned horizontally for use and vertically folded against the frame for storage, resolving the contradiction between stability during use and compact storage.
2Volume of moving object
If pivotable support legs and arms are implemented, then storage profile is reduced, but device complexity increases
Solution Approach 1:
The support legs and arms incorporate pivot connections that enable dynamic repositioning between stored and operational configurations. These pivot joints allow the structure to adapt its geometry, folding the support elements against the frame for compact storage while providing stable support during exercise.
Solution Approach 2:
The pivotable support legs and arms utilize frictional engagement and gravity to maintain their positions automatically. The frictional connectors hold the pivot joints in place without requiring additional locking mechanisms, and the weight of the support elements themselves helps maintain their positioned state, reducing the need for complex active control systems.
3Ease of operation
If frictional connectors are used for pivoting, then ease of operation is improved, but holding precision decreases
Solution Approach 1:
The frictional connectors utilize the weight of the support elements and the natural gravitational force to maintain their positions. The friction generated by the pivot joints' contact surfaces provides sufficient holding force to maintain precise positioning during use, eliminating the need for additional active locking mechanisms while ensuring reliable position maintenance.
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
Enables compact storage while maintaining functionality for various weightlifting exercises, including bench presses and incline presses, by securely holding the weightlifting bar and providing stability through frictional or pin-in-hole connectors, and can be easily moved with wheels.
Implementation Method 1
providing stability through frictional or pin-in-hole connectors
Implementation Method 2
providing stability through frictional or pin-in-hole connectors
Data Source
AI summary
A foldable low-profile weightlifting bench that includes a platform, pivotable support legs, and pivotable weightlifting bar support arms adapted such that the foldable low-profile weightlifting bench can be folded into a storage configuration capable of fitting under a typical bed frame.