Punch Bag Trolley Mechanism for Smooth Torque-Dissipating Motion
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Solution Overview
Problem
Existing exercise systems for punch bags fail to achieve smooth motion within a defined area due to complex designs that do not efficiently dissipate torque, leading to potential seizing or jamming of mechanisms and increased stress, which complicates assembly, installation, and maintenance.
Innovation Solution
A dynamic exercise system with a first and second trolley movable along and rotatable about rigid members, connected by a third rigid member via flexible connectors, allowing independent movement and dissipation of torque, ensuring smooth motion of the punch bag within a defined area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed mounting system is used for the punch bag, then the system structure is simple and stable, but the user experience is limited and the training implement cannot move smoothly in a wider area
Solution Approach 1:
The system divides the mounting structure into multiple independent trolley units (first trolley on first rigid member, second trolley on second rigid member) that can move independently along their respective members. This segmentation allows each component to perform a specific function while collectively enabling the training implement to move smoothly across a wider defined area, resolving the contradiction between movement range and structural simplicity.
2Adaptability or versatility
If a complex mechanism is used to allow smooth motion in a wider area, then the training implement can move more freely, but the design becomes highly complex and maintenance becomes difficult
Solution Approach 1:
The flexible connectors automatically accommodate rotational movements and torque forces without requiring external adjustment or intervention. The system self-regulates the motion of the trolleys and training implement, absorbing stresses and maintaining smooth operation without user intervention for alignment or calibration, thereby reducing maintenance complexity while preserving movement freedom.
3Ease of operation
If the training implement is allowed to move in response to user strikes, then the user experience is more intense and cardiovascular conditioning is increased, but torque may cause the mechanism to seize or jam
Solution Approach 1:
The flexible connectors are designed to convert the harmful torque and dynamic forces generated during user strikes into beneficial rotational movements of the trolleys along the rigid members. Instead of allowing these forces to seize the mechanism, the system utilizes them to drive the trolleys and maintain smooth, unpredictable motion that enhances user experience while preserving mechanism reliability.
4Device complexity
If torque is not properly dissipated in the system, then the design can be simpler, but the running mechanism becomes seized or jammed and stress on the mechanism increases
Solution Approach 1:
The system employs dynamic trolley units that can rotate about the longitudinal axes of the rigid members and move linearly along them. This dynamic configuration allows the trolleys to automatically adjust their positions and orientations in response to applied torque, dissipating rotational forces through controlled movement rather than rigid resistance, thereby maintaining smooth operation without requiring complex torque dissipation 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 system enables the punch bag to move smoothly and simulate human opponent interaction by dissipating torque, reducing the risk of seizing and maintaining ease of installation and reducing maintenance requirements.
Implementation Method 1
a third rigid member attached at a first end to the first trolley and at a second end to the second trolley via respective first and second flexible connectors
Implementation Method 2
the first trolley and second trolley are configured to be movable linearly along and rotatable about the longitudinal axis of the respective first and second members
Data Source
AI summary
This present disclosure relates to a dynamic exercise system to permit a sports training implement to move smoothly to any point within a defined area, such that the training implement moves in reaction to applied forces, and such that torque, including those applied externally to the training implement and any within or between any elements of the mechanism, are dissipated without prejudice to the smooth linear motion of the implement. In particular, a dynamic exercise system is provided which comprises: a first rigid member comprising a first trolley; a second rigid member comprising a second trolley, wherein the first trolley and second trolley are configured to be movable linearly along and rotatable about the longitudinal axis of the respective first and second members; a third rigid member attached at a first end to the first trolley and at a second end to the second trolley via respective first and second flexible connectors; a third trolley mounted on the third rigid member configured to be movable linearly along the third rigid member, the third trolley comprising means for connection to an exercise device.