Linear Actuator Console Height Adjustment
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Solution Overview
Problem
Existing exercise machines, such as treadmills, lack advanced mechanisms for dynamically adjusting the height of the console and incline angle of the exercise deck to accommodate user preferences and simulate varied workout routines, leading to limited user comfort and engagement.
Innovation Solution
The integration of a screw linear actuator with a worm gear and threaded rod system within the treadmill's upright structure allows for height adjustment of the console and communication with an incline mechanism to change the exercise deck's angle, incorporating a vibration reduction element to minimize noise and vibration during adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a linear actuator is added to adjust console height and incline angle, then user comfort and adaptability are improved, but device complexity increases
Solution Approach 1:
The linear actuator serves multiple functions by controlling both the console height adjustment and the incline angle adjustment through its integration with the incline mechanism, reducing the need for separate adjustment mechanisms
Solution Approach 2:
The linear actuator is integrated within the existing upright structure of the treadmill, nesting the adjustment mechanism within the structural framework to minimize additional space requirements and visual complexity
2Manufacturing precision
If a linear actuator with worm gear and threaded rod is used for height adjustment, then positioning precision is improved, but manufacturing complexity increases
Solution Approach 1:
The linear actuator replaces manual adjustment mechanisms with an automated electromechanical system that uses a worm gear and threaded rod to achieve precise positioning through motorized control
Solution Approach 2:
The worm gear acts as an intermediary element between the motor and the threaded rod, providing mechanical advantage and self-locking functionality that enhances positioning precision while managing the complexity of power transmission
3Object-affected harmful factors
If vibration reduction elements are incorporated into the incline mechanism, then noise and vibration are reduced, but device complexity increases
Solution Approach 1:
Vibration reduction elements such as dampers or elastic elements are incorporated into the incline mechanism to cushion and absorb vibrations before they can propagate to the treadmill frame, reducing noise and vibration complaints
Solution Approach 2:
The vibration reduction elements act as intermediaries between the incline mechanism components and the treadmill structure, isolating the harmful vibrations while allowing the incline adjustment function to operate
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
This solution enhances user comfort by automatically adjusting the console height and exercise deck angle, providing a more immersive workout experience while reducing vibrations and noise, thus improving the overall effectiveness of the exercise machine.
Implementation Method 1
a threaded rod with a thread form that meshes with the worm gear
Implementation Method 2
a worm gear and a threaded rod with a thread form that meshes with the worm gear
Data Source
AI summary
An exercise device includes a base and an upright structure connected to the base. The upright structure includes a stationary portion connected to the base, a height adjustable portion connected to the stationary portion, and a linear actuator that moves the height adjustable portion in response to a command from a user.