Variable Load Module for Adjustable Seated Exercise Equipment
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Solution Overview
Problem
Conventional exercise equipment requires cumbersome processes to change the load for muscular workouts, limiting the ability to easily adjust exercise intensity based on user's physical condition or desired workout level.
Innovation Solution
A variable load module that connects a rotating bar and load application portion, allowing the position of cable connection to vary, enabling easy adjustment of exercise load intensity by changing the distance between the grip and cable, and incorporating a sliding mechanism to alter the vector path of external force applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of weights is changed to adjust the load, then the exercise load can be modified, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The patent changes the parameter of cable connection position on the rotating bar to vary the exercise load. By moving the cable connection along the rotating bar's length, the moment arm changes, thereby adjusting the torque and perceived load without adding or removing weights. This provides continuous load adjustment capability while maintaining the same weight stack configuration.
Solution Approach 2:
The system introduces a dynamic adjustment mechanism where the cable connection position can be varied during operation. The variable load module allows users to dynamically change the connection point on the rotating bar, transforming a static weight system into a dynamically adjustable load system that adapts to different workout intensities.
2Adaptability or versatility
If conventional weight stacks are used, then sufficient load range is available, but the adjustment process is complex and requires stopping the exercise
Solution Approach 1:
The system pre-configures multiple cable connection points along the rotating bar before exercise begins. Users can select from predetermined positions that correspond to different load intensities, eliminating the need for complex adjustments during exercise. The positions are designed in advance to provide appropriate load progression.
Solution Approach 2:
The cable connection system allows for quick dynamic repositioning during exercise execution. The variable load module is designed to enable rapid adjustment of the connection point without requiring the user to stop the exercise or perform complex manipulation, thus minimizing time loss during load transitions.
3Device complexity
If the cable connection position is fixed, then the structure is simple, but the exercise intensity cannot be easily varied
Solution Approach 1:
The rotating bar is segmented with multiple discrete cable connection points along its length. This segmentation allows the cable to be connected at different locations, creating variable moment arms and thus variable exercise intensity. The segmentation provides a simple yet effective way to achieve load variation without complex mechanisms.
Solution Approach 2:
The variable load module serves multiple functions: it acts as a structural connector while simultaneously providing load adjustment capability. The same component that attaches the cable to the rotating bar also enables intensity variation through position selection, combining structural and functional roles in a single element.
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 easy and precise adjustment of exercise load intensity without changing the number of weights, expanding user options and enhancing compatibility with existing equipment.
Implementation Method 1
a sliding portion (431) that has a shape corresponding to the outer peripheral surface of the mounting bar (41) and surrounds the mounting bar (41)
Implementation Method 2
a rotating bar (20) that rotates about a main rotating axis (21)
Implementation Method 3
allowing the position at which the cable is connected to the rotating bar (20) to vary so that the load applied to the rotating bar (20) changes
Implementation Method 4
connected to the rotating bar with a cable to be raised and lowered according to the rotation of the rotating bar
Implementation Method 5
When the intermediate connection portion (433) slides along the mounting bar (41), the connection rotation axis (435) may be rotated by the load from the load application portion (30), preventing the cable (C) from bending
Data Source
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AI summary
The exercise equipment (1) with a variable load module (40) according to an embodiment of the present disclosure may allow a seated user to work out by pulling or pushing a rotating bar (20) to lift a load and include a seating portion (10) providing a space for a user to sit; an external force application portion disposed adjacent to the seating portion and including the rotating bar that rotates about a main rotating axis (21) and a grip portion (23) that is formed on the rotating bar and provides a space for a user to grip; a load application portion (30) disposed at the rear of the seating portion, including a plurality of weights, and connected to the rotating bar with a cable (C) to be raised and lowered according to the rotation of the rotating bar; and a variable load module (40) connecting the rotating bar and the load application portion and allowing the position at which the cable is connected to the rotating bar to vary so that the load applied to the rotating bar changes.