Barbell Rack Tilt Mechanism Using Eccentric Pivots
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Solution Overview
Problem
Existing barbell racks require time-consuming adjustments to fit different users during competitions, especially when heavy weights are involved, and prior tilt functions are difficult to operate with full loads due to the need for external lifting or screw manipulation.
Innovation Solution
A barbell rack design featuring telescopically arranged support members with pivotable eccentrics and handles allows for easy tilting of the supports without lifting the barbell, using a mechanism where eccentrics pivot around fixed points within holder parts, enabling quick and effortless adjustment of the support positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional tilt functions with screws and brackets are used, then the supports can be adjusted between straight and tilted positions, but the adjustment becomes time-consuming and difficult to operate with full loads
Solution Approach 1:
The support members are designed with dynamic tilting capability through pivot points and eccentric mechanisms that allow the supports to move between straight and tilted positions. The holder parts are arranged to permit this dynamic adjustment while maintaining stability during use.
Solution Approach 2:
The eccentric mechanisms and pivot points are designed to enable the support members to tilt and lock into position automatically when force is applied, eliminating the need for manual screw manipulation or external lifting assistance.
2Strength
If heavy weight discs are arranged at the barbell, then the rack can support full competition loads, but the tilt function becomes difficult to operate
Solution Approach 1:
The support members are segmented into multiple parts including foot members, holder parts, and telescopic tubes, allowing the tilting function to be isolated from the load-bearing function. The eccentric mechanisms are positioned to operate independently of the barbell weight.
Solution Approach 2:
The eccentric mechanisms act as intermediaries between the operator and the support members, providing mechanical advantage that allows tilting to be operated easily even when heavy loads are present on the barbell.
3Reliability
If the support members are made robust and safe for competition, then they can handle heavy loads, but the adjustment process becomes more complex
Solution Approach 1:
The holder parts are designed to combine multiple functions: they provide structural support, enable tilting through pivot points, and facilitate locking through eccentric mechanisms. This merging of functions reduces the need for separate adjustment components.
Solution Approach 2:
The support members incorporate dynamic elements such as pivot points and telescopic sections that allow for easy adjustment while maintaining robust construction. The holder parts are arranged to permit movement while preserving structural integrity.
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 one person to easily tilt the supports even with full loads, reducing the time and effort required for adjustments, making it quicker and more efficient compared to prior art solutions.
Implementation Method 1
A first eccentric is pivotably arranged at the first holder part of the first support member and is pivotable around a first pivot point and further hingedly connected to a first bracket, which is fixedly attached to the second tube of the first support member. Upon pivoting, the first eccentric is arranged to tilt the first support member within the first holder part.
Implementation Method 2
A second eccentric is pivotably arranged at the second holder part of the second support member and is pivotable around a second pivot point and further hingedly connected to a second bracket, which is fixedly attached to the second tube of the second support member. Upon pivoting, the second eccentric is arranged to tilt the second support member within the second holder part.
Implementation Method 3
The first tube is telescopically arranged relative the second tube
Implementation Method 4
A first handle is fixedly connected with a first end to the first eccentric and further comprising a second end which is a free end distal from the first end of the first eccentric
Data Source
AI summary
A barbell rack includes first and second support members arranged for supporting one end of a barbell, first and second foot members with first and second holder parts fixedly attached to respective foot member and which are arranged for tilting the first and second support members within the respective holder part. The barbell rack further includes first and second eccentric each pivotably arranged at the respective holder part and hingedly connected to a respective bracket which respective bracket is fixedly attached to the respective support member for the tilting of the same within the respective holder part.