Power-Actuated Stretching Machine with 180-Degree Rotating Riser
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Solution Overview
Problem
Current devices for stretching lower back and leg muscles do not allow for full range of motion self-stretching without engaging opposing muscle contractions, limiting the effectiveness and safety of muscle stretching exercises.
Innovation Solution
A remote-controlled power-actuated mechanical pushing apparatus with an open box frame, extendable base, and padded horizontal support arms, enabling the vertical support riser to rotate from zero to 180 degrees, allowing for self-stretching of lower back and leg muscles without using opposing muscle contractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional stretching devices are used, then stretching can be performed, but full range of motion self-stretching without opposing muscle contractions cannot be achieved
Solution Approach 1:
The patent replaces the mechanical system of manual muscle contraction with a power-actuated mechanical pushing apparatus. The device uses a motorized actuator to generate the stretching force, eliminating the need for opposing muscle contractions while providing controlled, full-range motion stretching. This substitution directly resolves the contradiction by enabling safe, effective stretching without requiring active muscle engagement.
Solution Approach 2:
The patent introduces a mechanical intermediary system (the pushing apparatus with support arms and actuator) between the user and the stretching action. This intermediary device transfers and controls the stretching force, allowing the user to perform self-stretching without directly engaging opposing muscles. The intermediary mechanism ensures safe and effective force application throughout the full range of motion.
2Adaptability or versatility
If power actuated mechanical pushing is implemented, then full range of motion stretching is enabled, but device complexity increases
Solution Approach 1:
The patent divides the stretching apparatus into distinct functional segments: a base structure, a vertical support riser, multiple padded support arms at different positions, and a power actuator. This segmentation allows each component to perform its specific function independently, enabling full range of motion stretching while keeping the overall device manageable in complexity. The modular structure makes the sophisticated functionality achievable without excessive complexity.
Solution Approach 2:
The patent designs the pushing apparatus to be multi-functional, with the single actuator and support arm assembly capable of stretching multiple muscle groups (lower back, hamstrings, quadriceps, glutes) by adjusting the user's position and the support arm engagement points. This universality reduces device complexity compared to having separate devices for each muscle group, while still providing adaptability for full range of motion stretching across various muscle types.
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 safe and effective self-stretching of muscles like erector spinae, hamstrings, quadriceps, and gluteus maximus throughout the entire human range of motion, making it convenient and easy to use for both lower and upper back muscles.
Implementation Method 1
a user variable length push-pull rod having a first end pivotably connected to said riser intermediate said free end and said distal end and a second end pivotably connected to a second edge of said frame distal from said first edge, wherein said riser is urged to rotate from/to proximately parallel to the base of the frame to/from proximately parallel to the panel by a user varying the length of said push-pull rod
Implementation Method 2
said base having a first edge rotatably connected to a first edge of a rectangular panel, and said first edge of said base also rotatably connected to a distal end of an elongated riser such that said panel and riser swing around said first edge of said frame in the same plane
Data Source
AI summary
The present invention is a Stretching Machine in the form of a remote power actuated mechanical pushing apparatus comprising a flat base extended in front of an open box frame having a power actuated mechanical pushing and pulling device with a plurality of cylindrical padded arms enabling a full one hundred and eighty degree arc range of effective powered stretching assistance for self stretching the lower back muscles and leg muscles for exercise, physical therapy, rehabilitation, and stretching. It is useful for actively and passively, safely and effectively, self stretching the erector spinae, hamstrings, quadriceps, sartorius, hip adductors, hip flexors, tensor fasciae latae, rectus femris, gluteus maximus, and gluteus medius muscles. The Stretching Machine is also convenient and easy to use to stretch the muscles of the upper back.