Non-Electric Treadmill Strap Retracting Device
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Solution Overview
Problem
Conventional treadmills, both electric and non-electric, face limitations in allowing users to easily adjust speed during exercise, leading to safety concerns and restricted exercise options, with existing solutions either requiring cumbersome wearable devices or occupying excessive space.
Innovation Solution
A non-electric treadmill with a retracting device that uses a strap system to restrict user movement, allowing for adjustable exercise speed without the need for wearable devices or additional space, incorporating a platform with a flywheel for resistance adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a non-electric treadmill is used to allow users to control belt speed manually, then users can adjust exercise speed freely, but the user may move forward faster than the belt moves backward causing safety issues
Solution Approach 1:
The patent introduces a restricting device as an intermediary mechanism between the user and the treadmill system. This device includes a strap connected to a retracting mechanism that physically limits how far forward the user can move on the belt, preventing the user from moving faster than the belt speed while maintaining manual speed control freedom
Solution Approach 2:
The retracting device automatically adjusts to the user's movements without requiring active control. As the user moves forward, the strap extends and provides resistance; when the user slows down or stops, the strap retracts automatically, creating a self-regulating position control system
2Reliability
If a wearable restricting device is used to limit user forward movement, then user position can be controlled, but the device becomes cumbersome and requires additional accessories
Solution Approach 1:
The patent combines the restricting device with the treadmill's existing structural components. The strap is integrated into the treadmill frame, and the retracting mechanism is built into the device structure, eliminating the need for separate wearable accessories while maintaining position control functionality
3Reliability
If a stationary frame is added to secure the restricting device, then user position control is improved, but the device occupies more space
Solution Approach 1:
The patent designs the restricting device to utilize the existing treadmill frame structure for mounting and support. The device serves multiple functions: it provides position control, uses the treadmill's own structural elements for attachment, and does not require additional stationary frames, thereby maintaining space efficiency while ensuring stability
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 users to perform walking, jogging, or running with adjustable speed and resistance, simulating weight training, while ensuring safety and convenience by eliminating the need for cumbersome accessories and minimizing space usage.
Implementation Method 1
a retracting device disposed at the first side frame. The retracting device has a receiving space and an aperture communicating with the receiving space
Data Source
AI summary
The present invention relates to a treadmill. The treadmill includes a treadmill frame, an endless belt, a strap member and a retracting device. The strap member is located above the endless belt. The strap member has a first end, a second end, and a middle section. The first end of the strap member is operably connected to a right side of the treadmill frame, and the second end of the strap member is removably connected to a left side of the treadmill frame. The retracting device is configured to retract the strap member into the retracting device when the second end of the strap member is disconnected from the treadmill frame. When the second end of the strap member is connected to the left side of the treadmill, the middle section of the strap member constrains a position of a user on a top surface of the endless belt.