Free Weight Bar Stabilizer with Counterweight Carriage
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Solution Overview
Problem
Existing free weight training devices lack a mechanism to stabilize the bar during exercises, leading to unintended movement and increased risk of injury, particularly when lifting heavy weights or adjusting load increments.
Innovation Solution
A free weight bar stabilizer with pivotally attached beams and a linearly movable carriage, along with a counterweight mechanism, that allows the bar to be securely positioned and adjusted within a defined envelope of motion, and an assisting weight mechanism to reduce the weight lifted during heavy negatives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the bar is loaded with numerous barbell plates to increase strength, then the training effectiveness is improved, but the bar stability deteriorates and tips from side-to-side
Solution Approach 1:
The patent introduces a bar stabilizer device as an intermediary mechanism between the bar and the lifter's body. This stabilizer includes a frame with beams that pivotally attach to the bar, creating a support structure that mediates the interaction between the heavy load and the lifter, preventing bar tipping while allowing the weight to be lifted.
Solution Approach 2:
The stabilizer device is segmented into multiple functional components: a frame structure, pivotally attached beams, a carriage mechanism, and counterweights. This segmentation allows each component to perform its specific function - the frame provides structural support, the beams enable angular movement, the carriage handles linear movement, and the counterweights balance the system, collectively solving the stability problem.
2Adaptability or versatility
If the lifter uses a lighter weight at a later portion of the routine to work heavy negatives, then the weight adjustment flexibility is improved, but the load control precision deteriorates
Solution Approach 1:
The stabilizer incorporates dynamic elements including pivotally attached beams that can angularly move between raised and lowered positions, and a carriage that can linearly move radially from the pivot point. These dynamic components allow the device to adapt to different weight configurations and exercise phases, enabling smooth transitions between heavy and light loads while maintaining precise control through the mechanical linkage system.
Solution Approach 2:
The patent employs counterweights that move on the beam in the opposite direction of the carriage to counterbalance the weight of the carriage and assist when working heavy negatives. This counterweight mechanism provides precise load control by offsetting the weight changes, allowing the lifter to transition smoothly between different weight configurations without losing control precision.
3Ease of operation
If the bar is allowed to move freely to enable heavy negatives, then the exercise effectiveness is improved, but the injury risk increases
Solution Approach 1:
The stabilizer device provides beforehand cushioning by pre-establishing a mechanical support structure that prevents excessive bar movement before it can cause injury. The pivotally attached beams and carriage mechanism create a controlled movement envelope that cushions the bar against unintended displacement, allowing exercise effectiveness to be maintained while injury risk is reduced.
Solution Approach 2:
The stabilizer acts as an intermediary between the bar and the lifter's body, providing a controlled interface that allows necessary movement for exercise effectiveness while preventing harmful movements that could cause injury. The mechanical linkage system mediates the interaction, enabling safe range of motion while blocking dangerous excursions.
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 stabilizer effectively prevents bar movement and reduces the risk of injury by maintaining stability and allowing incremental weight adjustments, enabling lifters to perform exercises with greater control and safety.
Implementation Method 1
The carriage includes a counterweight that simultaneously moves on the beam in the opposite direction of the carriage to counterbalance the weight of the carriage, so it does not add to the quantity of the weight being lifted
Implementation Method 2
The stabilizer includes beams pivotally attached to a frame at a pivot point so that it is angularly movable in an arc between a raised position and a lowered position
Implementation Method 3
a carriage attached to the beams so that it is linearly movable radially out from the pivot point between a retracted position and an extended position
Data Source
AI summary
A free weight bar stabilizer, to be used with a standard size bar and attached barbell plates. The stabilizer includes a beam pivotally attached to a frame at a pivot point so that it is angularly movable in an arc between a raised position and a lowered position, and a carriage attached to the beam so that it is linearly movable radially out from the pivot point between a retracted position and an extended position. The carriage includes spaced distal arms with attachment points for attaching the bar to support its opposing ends. The bar is thus freely movable within an envelope defined by the ranges of the simultaneous angular movement of the beam and the linear movement of the attachment points on the carriage. The free weight bar stabilizer may also include a carriage counterweight that simultaneously moves on the beam in the opposite direction of the carriage to counterbalance the weight of the carriage, so it does not add to the quantity of the weight being lifted and reduce push and pull of the carriage. Further, the bar stabilizer may include an assisting weight mechanism to assist when working heavy negatives, by providing a counterweight to reduce the actual weight being lifted at a predetermined point as the beam moves toward the lowered position.