Seat Adjustment Mechanism for Ergonomic Exercise Equipment

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Solution Overview

Problem

Existing exercise apparatuses fail to comfortably accommodate a wide range of users due to fixed seat height and angle configurations, leading to ergonomic issues and user discomfort, particularly in vertically orientated upper body strength training equipment.

Innovation Solution

A seat adjustment device that articulates the seat angle in conjunction with height adjustments, using pivotably coupled upper and lower support arms with distinct pivot point spacings, allowing the seat angle to change as the height is adjusted, thereby optimizing user position across varying user heights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the seat height is adjusted to accommodate users of different heights, then the adaptability is improved, but the seat angle remains fixed causing ergonomic issues and user discomfort

Engineering Contradiction:

Improveseat height adjustmentVSAvoiduser comfort

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent combines seat height adjustment and seat angle adjustment into a single integrated mechanism. The support arm assembly with pivot points connects both the seat height position and seat angle, so that adjusting the seat height automatically adjusts the seat angle simultaneously, eliminating the need for separate adjustment mechanisms

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent makes the seat support system dynamic by allowing the seat angle to change automatically as the seat height is adjusted. The support arm assembly with its specific pivot point configuration enables the seat to articulate at different angles depending on the height position, providing dynamic adaptation to user needs

Inventive Principle:

Principle #15Dynamics

2Device complexity

If a fixed seat configuration is used, then the device complexity is reduced, but the adaptability to accommodate users of different heights is limited

Engineering Contradiction:

Improveseat adjustment mechanismVSAvoiduser position accommodation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The support arm assembly serves multiple functions: it supports the seat, enables height adjustment, and simultaneously provides angle adjustment. This multi-functional design allows a single mechanism to accommodate users of different heights and preferences without requiring separate adjustment systems

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

The solution provides an optimal user position for users of different heights by adjusting the seat angle to maintain comfort and stability, reducing the likelihood of slipping and improving seat shape usability for a broader range of users.

Implementation Method 1

an upper support arm having a first end that is pivotably coupled to the seat at an upper first pivot point and a second end that is pivotably coupled to the frame at an upper second pivot point; and a lower support arm having a first end that is pivotably coupled to the seat at a lower first pivot point and a second end that is pivotably coupled to the frame at a lower second pivot point

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS9555274B1Seat adjustment devices and exercise apparatuses having seat adjustment devices

Publication Date: 2017.01.31 LIFE FITNESS LLC

AI summary

An exercise apparatus has a frame, a seat that is supported by the frame and a body support member that is supported by the frame. The seat extends at a seat angle relative to the frame. A seat adjustment device facilitates adjustment of the height of the seat with respect to the frame and causes adjustment of the seat angle when the height of the seat is adjusted.