Angled Seat Assembly with Wedge Support for Prolonged Ergonomic Use
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Solution Overview
Problem
Existing ergonomic and therapeutic chairs fail to provide optimal ergonomic support for prolonged daily use, often obstructing the user's view and requiring users to lean back for proper spine alignment, and lack a structurally secure angled seat position.
Innovation Solution
An adjustable and angled seat assembly with a rigid base, telescopically adjustable legs, a wedge support member, and deformably resilient cushion members, allowing for multiple seating positions and acute angle adjustment between the seat and chest support surfaces, ensuring proper spine alignment without obstructing the user's view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If therapeutic chairs are designed with arm, leg, and facial rest surfaces to provide comprehensive support, then user comfort is improved, but the user's view and vocalization are obstructed
Solution Approach 1:
The patent removes traditional armrests, leg rests, and facial support surfaces from the chair design. By extracting these obstructive elements, the chair eliminates barriers to the user's view and vocalization while maintaining essential ergonomic support through the angled seat and chest support configuration
Solution Approach 2:
Instead of adding supportive surfaces that obstruct the user, the patent inverts the approach by using the angled seat and chest support to provide ergonomic benefits without traditional obstructive elements. The support structure is reconfigured to work with rather than against the user's natural positioning
2Adaptability or versatility
If adjustable therapeutic chairs include multiple adjustment features for therapy positioning, then therapy effectiveness is improved, but the chairs are not suitable for prolonged daily use as work chairs
Solution Approach 1:
The patent changes the key parameter from multiple adjustable positions to a fixed angled configuration. The seat is positioned at a specific angle (approximately 15-30 degrees from horizontal) and the chest support at a corresponding angle, creating an ergonomic position optimized for prolonged daily use rather than variable therapy positions
Solution Approach 2:
The patent inverts the design philosophy by moving from adjustable/variable positioning to a fixed optimized position. Rather than allowing users to adjust to find the right position, the chair is designed with a pre-determined ergonomic angle that provides optimal support for extended periods
3Adaptability or versatility
If adjustable chairs allow users to select various positions, then user preference is satisfied, but fixed positioning is not provided to ensure optimal ergonomic position
Solution Approach 1:
The patent changes the approach from variable user-selected positions to a precisely engineered fixed angle. The seat and chest support are configured at specific angular measurements designed to optimize spine alignment and ergonomic positioning, eliminating the need for user adjustment while ensuring consistent optimal positioning
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 effective relief from back and body pain by maintaining an optimal ergonomic position, allowing users to work comfortably for extended periods without obstructing their view or requiring them to lean back, while ensuring structural stability and adjustability.
Implementation Method 1
a wedge support member of a substantially rigid material... with a lower end directly coupled to the support plate and tapering in the wedge height spanning along the wedge length to define a wedge angle θ
Implementation Method 2
a wedge support member... tapering in the wedge height spanning along the wedge length to define a wedge angle θ defined by the upper and lower ends of the wedge support member
Implementation Method 3
The cushion member and the chest cushion member are of a deformably resilient material
Implementation Method 4
a vertical support leg rotatably coupled to the support plate
Data Source
AI summary
An adjustable and angled seat assembly having a base supportable on a ground surface, a wedge support member with a wedge length separating the front and rear ends thereon and a wedge height separating upper and lower ends thereon, with the lower end directly coupled to a support plate and tapering in the wedge height spanning along the wedge length to define a wedge angle θ defined by the upper and lower ends of the wedge support member. The assembly also includes a seat cushion having a seat-support surface disposed above the base and a seat-support angle relative to the base support plane and a lower surface directly coupled to the upper 704 of the wedge support member and a chest cushion having a chest-support surface disposed above the seat-support surface, coupled to the support plate, and disposed at an at an acute angle with respect to the seat-support surface.