Gymnastic Machine Scissor Slide for Lumbar Stretching
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Solution Overview
Problem
Current gymnastic machines for muscle stretching are limited in their ability to effectively stretch the ileopsoas muscle and hip flexor, requiring the presence of a trainer, which is costly and inconvenient, especially for those with backache issues.
Innovation Solution
A gymnastic machine with a movable slide and frame that allows for a scissor movement between two limbs, enabling controlled stretching of the lumbar muscles, including the ileopsoas, without the need for a trainer, using a guide and regulating devices to ensure safety and effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gymnastic machine is designed to stretch posterior kinetic chain muscles (glutei, piriformis, rachis, ischiocrural, femoral bicipital), then lumbar muscle stretching is improved, but the ability to stretch anterior kinetic chain muscles (ileopsoas, hip flexor) is lost
Solution Approach 1:
The machine is divided into two independent functional zones: a first zone for posterior kinetic chain stretching and a second zone for anterior kinetic chain stretching. Each zone has its own support structure and movement mechanism, allowing simultaneous or independent use for different muscle groups without interfering with each other.
Solution Approach 2:
The gymnastic machine is designed to perform multiple stretching functions within a single device. It can stretch both posterior muscles (glutei, hamstrings, lower back) and anterior muscles (ileopsoas, hip flexors) by providing separate support structures and movement pathways for different limb positions and exercise types.
2Reliability
If a trainer is used to supervise stretching exercises, then exercise safety and effectiveness are improved, but training cost and time commitment increase
Solution Approach 1:
The machine incorporates self-guiding features including visual indicators, mechanical guides, and intuitive design elements that enable users to perform stretching exercises independently without trainer supervision. The machine structure itself provides the guidance and safety mechanisms previously requiring human instruction.
3Reliability
If a trainer is used to supervise stretching exercises, then exercise safety and effectiveness are improved, but training cost increases
Solution Approach 1:
The machine incorporates self-guiding features including visual indicators, mechanical guides, and intuitive design elements that enable users to perform stretching exercises independently without trainer supervision. The machine structure itself provides the guidance and safety mechanisms previously requiring human instruction.
4Reliability
If a slide movable along a longitudinal guide is used to control support rotation, then lumbar muscle stretching is improved, but the machine cannot stretch anterior kinetic chain muscles
Solution Approach 1:
The machine is divided into two independent functional zones: a first zone for posterior kinetic chain stretching and a second zone for anterior kinetic chain stretching. Each zone has its own support structure and movement mechanism, allowing simultaneous or independent use for different muscle groups without interfering with each other.
Data Source
AI summary
Gymnastic machine (1) includes a frame (10), a slide (20) carried movable by the frame (10) along a given direction (D) from and to a starting station (30), with the slide (20) being suitable for coupling with a first limb in such a way as to guide it along the given direction (D) and to enable, in use, to control a scissor movement of the first limb with respect to a second limb retained at the starting station (30).