Adjustable Elliptical Trainer Sliding Rail Angle Mechanism

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Solution Overview

Problem

Conventional elliptical trainers have a fixed trajectory, which limits the ability to adjust exercise intensity and cannot meet the diverse fitness needs of users.

Innovation Solution

An adjustable elliptical trainer design featuring a sliding rail and connecting piece that allows the angle of the sliding rail to be adjusted relative to the body, enabling the movement mechanism to change its motion trajectory and intensity, using a fixing plate, telescopic rod, or motor-driven mechanisms for precise adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the elliptical trainer uses a fixed trajectory design, then the structure is simple and stable, but the adaptability to different fitness needs is poor

Engineering Contradiction:
Improvetrajectory adjustabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the sliding rail angle adjustable rather than fixed. The sliding rail can be positioned at different angles relative to the vertical direction through the connecting piece mechanism, allowing the exercise trajectory to be dynamically adjusted. This enables the same device to provide multiple exercise intensities and trajectories, improving adaptability without requiring multiple separate devices.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by allowing the inclination angle of the sliding rail to be varied. By changing the angle parameter of the sliding rail relative to the vertical direction, the exercise trajectory and intensity can be adjusted. The connecting piece enables this parameter change while maintaining structural integrity, thus improving versatility without excessive complexity.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the sliding rail angle is made adjustable to customize exercise intensity, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Improveexercise intensity customizationVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the adjustment function into separate components: the sliding rail, the connecting piece with multiple connection positions, and the adjustment mechanism. This modular approach allows the angle adjustment capability to be added without redesigning the entire elliptical trainer, thus improving adaptability while controlling the increase in overall device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting piece serves multiple functions: it connects the sliding rail to the frame, enables angle adjustment, and provides structural support. This multi-functionality reduces the need for additional separate components, allowing exercise intensity customization while minimizing the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 customize exercise intensity by altering the angle of the sliding rail, accommodating different fitness requirements and enhancing user experience through adaptable exercise intensity.

Implementation Method 1

a sliding part matched with the sliding rail, the sliding part being provided on the sliding rail and being slidable along the sliding rail

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the connecting piece is configured to be movable relative to the sliding rail and/or the body to adjust a distance between the first connection point and the second connection point, so as to adjust an angle at which the sliding rail is inclined to the body

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS12005303B2Adjustable elliptical trainer
Publication Date: 2024.06.11 OMA FITNESS EQUIP CO LTD
  • US12005303B2 patent drawing
  • US12005303B2 patent drawing
  • US12005303B2 patent drawing

AI summary

An adjustable elliptical trainer is disclosed, which includes a body, a sliding rail, a connecting piece and a movement mechanism. The sliding rail has one end rotatably connected to the body around an axis and an other end detachably connected to the body by the connecting piece along a longitudinal extension direction of the sliding rail. The movement mechanism includes a sliding part matched with the sliding rail, and the sliding part is provided on the sliding rail and is slidable along the sliding rail. The axis is perpendicular to the longitudinal extension direction of the sliding rail, a first connection point is provided at a joint between the connecting piece and the sliding rail, and a second connection point is provided at a joint between the connecting piece and the body, the connecting piece is configured to be movable relative to the sliding rail and/or the body.