Weightlifting Machine Carriage Locking for Compact Rack Integration
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Solution Overview
Problem
Existing squat machines and weight racks are bulky and difficult to operate, necessitating a need for compact, safe, and integrated structures that improve operation and safety.
Innovation Solution
A weightlifting machine with a user-engaging device, carriage support, and a cable system that allows vertical movement of a carriage, featuring a locking mechanism to elevate and lock the carriage at desired positions, and a platform for user support, along with a cable system using pulleys to guide the cable path, and a friction reducing structure to minimize resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing squat machines use multiple support posts and cables to suspend weights, then the machine provides stable weight support, but the machine occupies large footprint space and becomes bulky
Solution Approach 1:
The patent combines the squat machine components with an existing weight rack structure. The carriage support integrates with the rack's vertical posts and crossmembers, merging two functions (weight storage and squat exercise) into a single integrated structure, thereby reducing the overall footprint while maintaining stability
Solution Approach 2:
The weight rack serves multiple functions: it stores weights on racks and simultaneously supports the squat machine's carriage and locking mechanism. This multi-functionality eliminates the need for separate standalone squat machine support structures, reducing space requirements
2Power
If existing belt squat machines use complex cable and pulley systems, then the machine provides weight resistance, but the machine becomes difficult and awkward to operate
Solution Approach 1:
The patent extracts the weight resistance function from a complex suspended cable system and replaces it with a simplified carriage that moves vertically along a single support structure. The weight attaches directly to the carriage, eliminating the need for complex pulley systems while maintaining the resistance function
Solution Approach 2:
Instead of suspending the weight from above via cables, the patent inverts the approach by having the weight move vertically along a fixed support structure with the user. The carriage supports the weight and moves along the support posts, reversing the traditional suspension mechanism and simplifying operation
3Device complexity
If existing squat machines lack integrated locking mechanisms, then the structure remains simple, but user safety during exercise is compromised
Solution Approach 1:
The locking mechanism is integrated into the existing weight rack structure, combining the safety function with the support structure. The locking members attach to the rack's crossmembers or vertical posts, merging structural support and safety functions into a unified system without adding separate complex mechanisms
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 solution provides a compact and safe weightlifting machine that enhances user operation and safety by allowing easy adjustment and smooth movement of the carriage, reducing friction, and integrating with existing weight racks.
Implementation Method 1
one or more pulleys connected to the weightlifting machine to guide a path of the cable
Implementation Method 2
a locking mechanism including a locking member that is moveable between a locking position, where the locking member engages the carriage and supports the carriage at an elevated position
Data Source
AI summary
A weightlifting machine includes a carriage support, a carriage moveably mounted on the carriage support and configured to move along the carriage support, and a locking mechanism that is moveable between a locking position, where the locking mechanism engages the carriage and supports the carriage at an elevated position above a lowermost position of the carriage, and a release position, where the locking mechanism does not engage the carriage, and the carriage is free to move below the elevated position.