Multisection Stretch Sleeve for Cervical and Arm Training
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Solution Overview
Problem
Conventional musculus abdominalis training devices do not effectively train the cervical vertebra and strengthen the arms, requiring separate devices for these purposes.
Innovation Solution
A stretching machine with a machine rack, foot stool, and hand stool, featuring a longitudinal stretch sleeve and regulation mechanism, allowing for adjustable stretching of the cervical vertebra and arm strength training through a combination of movable sleeves, gear wheels, and an elastic fastener system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional musculus abdominalis training devices are used, then the musculus abdominalis can be trained, but the cervical vertebra and arm strength cannot be effectively trained
Solution Approach 1:
The patent combines multiple training functions (abdominal training, cervical vertebra stretching, and arm strength training) into a single integrated device. The machine rack serves as a common support structure for both the foot stool (abdominal training) and hand stool (arm and cervical training), eliminating the need for separate devices and achieving multi-functionality without proportionally increasing complexity.
Solution Approach 2:
The machine rack is designed as a universal support structure that enables multiple training operations. By providing both the foot stool assembly for abdominal exercises and the hand stool assembly for arm and cervical exercises, the same basic structure serves multiple purposes, improving training coverage while maintaining reasonable device complexity.
2Adaptability or versatility
If the longitudinal stretch sleeve is extended to increase stretching range, then the stretching effectiveness is improved, but the device length increases
Solution Approach 1:
The longitudinal stretch sleeve is divided into multiple telescopic sections (first sleeve, second sleeve, third sleeve) that can extend and retract relative to each other. This segmentation allows the device to achieve a longer stretching range when needed while maintaining a compact form when retracted, effectively decoupling the stretched length from the stored length.
Solution Approach 2:
The telescopic structure implements a nested arrangement where the second sleeve is inserted into the first sleeve, and the third sleeve is inserted into the second sleeve. This nesting allows the sleeves to extend sequentially to increase the stretching range while occupying minimal space when retracted, solving the contradiction between stretching effectiveness and device length.
3Adaptability or versatility
If the hand stool is made adjustable to fit different users, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The hand stool implements dynamic adjustability through the swing rod mechanism, which allows the handgrip position to be adjusted along the longitudinal direction. The swing rod can rotate about a pivot point, enabling the handgrip to move between different positions. This dynamic adjustment provides user adaptability while maintaining a relatively simple mechanism compared to complex mechanical adjustment systems.
Solution Approach 2:
The elastic fastener system provides a simplified copying of complex locking mechanisms. By using an elastic button that engages with positioning holes, the system achieves adjustable positioning without requiring complex screws, clips, or mechanical locks, thereby reducing device complexity while maintaining user adaptability.
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 comprehensive training of the musculus abdominalis, cervical vertebra, and arm strength in a single device, providing adjustable and effective stretching and strengthening exercises.
Implementation Method 1
an elastic fastener formed as an U-shape and providing one free end with an outwardly protruded button is jointed in a hollow chamber of the horizontal section of the handgrip rod, and the protruded button of the elastic fastener is penetrated through the through hole formed on the pipe wall of the horizontal section of the handgrip rod and one of the positioning holes of the connecting rod
Implementation Method 2
a round gear wheel disposed on a lower end the L-shaped pull hand, and a strip gear installed on a sidewall of the second sleeve, and the strip gear is engaged to the round gear wheel when the second sleeve is inserted in the first sleeve
Data Source
AI summary
A stretching machine includes a machine rack, a foot stool, a hand stool, and a lying board installed in a middle part of the machine rack. The foot stool and the hand stool are respectively installed at two ends of the machine rack. The main body of the machine rack is formed by a multisection longitudinal stretch sleeve, and a longitudinal stretch regulation mechanism is provided to retractably regulate the multisection longitudinal stretch sleeve in the longitudinal direction. By the rotation of a pull hand and the engagement of a strip gear and a round gear wheel in the longitudinal stretch regulation mechanism to extend the second sleeve relative to the first sleeve, the user on the lying board can be extended to attain the stretching of the cervical vertebra thereof.