Selectorized Smith Machine Carriage with Latching Hooks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional Smith machines require manual adjustment of resistance by adding or removing weight plates, which can be cumbersome and lacks a mechanism for counterbalancing the barbell shaft, necessitating an adjustable safety stop and limiting the user's ability to easily adjust resistance during exercises.
Innovation Solution
A Smith machine with a moveable carriage and rack system that includes a counterbalance barbell shaft with latching hooks, connected to a selectorized weight stack via a cable and pulley system, allowing users to latch the hooks into multiple openings to adjust resistance without the need for an adjustable safety stop, and utilizing a counterbalance weight to reduce starting resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual weight plate adjustment is used, then resistance can be changed, but the process is cumbersome and time-consuming
Solution Approach 1:
The patent replaces the manual mechanical system of adding and removing weight plates with a selectorized weight stack system. The user simply selects the desired weight through a selection mechanism, and the corresponding weight is automatically engaged, eliminating the need for manual plate handling and significantly reducing adjustment time.
Solution Approach 2:
The weight stack system is designed to automatically engage the selected weight without requiring user intervention to physically handle the weights. The selection mechanism automatically connects the barbell to the appropriate weight stack, allowing the system to serve itself in the weight selection process.
2Adaptability or versatility
If traditional Smith machine design is used, then structural simplicity is maintained, but counterbalancing capability is lost
Solution Approach 1:
The patent incorporates a counterbalance weight system that offsets the weight of the barbell shaft and selected weights. This counterbalance mechanism reduces the starting resistance and makes the machine more adaptable for various exercise intensities, particularly benefiting users who need lighter starting weights.
Solution Approach 2:
The patent combines multiple functions into a single integrated system: the selectorized weight stack provides both the resistance mechanism and the counterbalance capability. This multi-functionality allows the machine to serve traditional Smith machine purposes while also providing counterbalancing assistance, reducing the need for separate components.
3Reliability
If adjustable safety stop is used, then safety is ensured, but device complexity increases
Solution Approach 1:
The patent integrates the safety function into the existing selectorized weight stack system. The same mechanism that selects and engages weights also provides the safety stop functionality, eliminating the need for separate adjustable safety stop components while maintaining safety assurance.
4Ease of operation
If weight plates are used, then resistance adjustment is possible, but ease of operation during exercise is reduced
Solution Approach 1:
The patent replaces the manual weight plate system with a selectorized weight stack that can be adjusted during exercise. The selection mechanism allows users to change weights without stopping the exercise or manually handling plates, as the system automatically engages the selected weight while the user maintains their position.
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 users to easily adjust resistance during exercises by engaging or disengaging the latching hooks with the rack, eliminating the need for manual weight plate adjustments and providing a consistent counterbalance, thus enhancing the user experience and safety by reducing the initial resistance required.
Implementation Method 1
connected to a selectorized weight stack via a cable and pulley system
Implementation Method 2
utilizing a counterbalance weight to reduce starting resistance
Data Source
AI summary
An exercise apparatus comprising: a frame having a first vertical guide and a second vertical guide; a first selectorized weight stack and a second selectorized weight stack coupled to the frame; a first carriage assembly and a second carriage assembly coupled to the first and second selectorized weight stacks, respectively, each of the first and second carriage assemblies comprising a rack having a number of openings; and an exercise bar movably coupled to the frame, the exercise bar having a first end comprising a first latching hook and a second end having a second latching hook, the first latching hook or the second latching hook configured to engage or disengage with an opening of the number of openings in the rack to adjust a resistance of the exercise bar.