Angle-Adjustable Smith Machine Front Pole Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Smith machines have fixed front poles that cannot be pivoted inwardly, leading to issues where heavy weight disks sag and touch the barbell holders, hindering the lifting of the barbell.
Innovation Solution
An angle-adjustable Smith machine design that includes angle adjustment units on the front poles, allowing them to be pivoted inwardly at a predetermined angle, thereby creating space to prevent weight disks from touching the barbell holders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the front poles are fixed and cannot be pivoted inwardly, then the structural simplicity and ease of manufacture are maintained, but the weight disks will touch the barbell holders when the barbell is lifted, hindering the lifting operation
Solution Approach 1:
The front pole structure is changed from fixed to dynamically adjustable. The angle adjustment unit enables the front pole to pivot inwardly around a pivot axis, transforming the static structure into a dynamic one that can adapt its configuration based on operational needs, specifically allowing the pole to move from a vertical position to an inclined position during lifting operations
Solution Approach 2:
The angle of the front pole relative to the base is changed from a fixed parameter to an adjustable parameter. The angle adjustment unit allows the pole to change its angular position between vertical and inclined states, enabling the system to optimize its geometric configuration for different operational phases (loading vs. lifting)
2Ease of operation
If the front poles are made angle-adjustable with pivoting capability, then the weight disks will not touch the barbell holders during lifting, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The front pole assembly is segmented into distinct functional components: the base with pivot axis, the front pole itself, and the angle adjustment unit with locking mechanism. This segmentation allows each component to be manufactured and assembled separately, simplifying the overall manufacturing process despite the added functionality
Solution Approach 2:
The angle adjustment unit acts as an intermediary mechanism between the base and the front pole. It provides the pivoting capability and locking function without requiring complex integrated designs, using standardized mechanical elements like pivot axes, adjustment holes, and locking pins that are easy to manufacture and assemble
3Reliability
If the front poles are fixed vertically, then the structural stability is maintained, but the weight disks sag and touch the barbell holders when heavy weights are used
Solution Approach 1:
The system transitions from a static vertical pole configuration to a dynamic system where the pole can pivot inwardly. This dynamic adjustment allows the pole angle to change based on the load and operational phase, preventing weight disk interference during lifting while maintaining structural stability when locked in position
Solution Approach 2:
The angle adjustment unit is configured to preemptively prevent the harmful interaction between weight disks and barbell holders. By allowing the pole to pivot inwardly before the lifting operation begins, the system eliminates the potential for weight disk interference, ensuring reliable operation throughout the entire lifting cycle
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 adjustable front poles ensure that weight disks do not touch the barbell holders, facilitating smoother lifting and enhancing the usability and safety of the Smith machine.
Implementation Method 1
The bottom end of the front pole is pivotally connected to the base and the top end is coupled to the corresponding slide slot bracket
Data Source
AI summary
An angle-adjustable Smith machine includes a base; an upper frame, located at a height from the base and having two slide slot brackets; two front poles each having a bottom end pivotally connected to the base and a top end coupled to the slide slot brackets; two rear poles, connected between the base and the upper frame; and at least one angle adjustment unit, disposed on the corresponding slide slot bracket and connected to the top end. The angle adjustment unit is configured for driving the top end of the front pole to move in an X direction and then to be secured, so that the bottom end of the front pole is pivoted in the X direction for the front pole to be adjusted at a predetermined angle.