Seat Back Mounting Assembly With Separate Angle and Depth Locks
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Solution Overview
Problem
Existing seat back mounting systems lack the ability to provide independent multi-directional adjustment, making it difficult to customize the seat back angle and depth independently, which can affect user comfort and adaptability to different chair types.
Innovation Solution
A seat back angle and depth adjustment assembly that includes an angle adjustment member with arcuate apertures and a depth adjustment mechanism, allowing for independent adjustment of the seat back angle and depth through a system of interconnected fasteners and brackets, enabling the seat back to be adjusted without affecting the other parameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional seat back mounting system is used, then the structure is simple, but the ability to provide independent multi-directional adjustment is lacking
Solution Approach 1:
The mounting system is divided into separate functional components: an angle adjustment mechanism with arcuate apertures for angle control, and a depth adjustment mechanism with slots for depth control. Each mechanism operates independently through its own fasteners, allowing separate adjustment of seat back angle and depth without interfering with each other.
Solution Approach 2:
The system adds multiple adjustment dimensions by incorporating both angular adjustment (through arcuate apertures allowing rotational movement) and linear depth adjustment (through slots allowing translational movement). This transforms a single-dimensional mounting system into a multi-dimensional adjustment system.
2Ease of operation
If the seat back angle and depth are adjusted using a coupled system, then the structure is simpler, but adjusting one parameter affects the other parameter
Solution Approach 1:
The adjustment system is segmented into independent angle and depth control subsystems. The angle adjustment uses fasteners engaged with arcuate apertures on the angle adjustment member, while depth adjustment uses fasteners engaged with slots on the mounting member. This segmentation ensures that adjusting angle does not affect depth and vice versa.
Solution Approach 2:
The system employs dynamic adjustment capabilities where fasteners can be easily loosened and repositioned along arcuate apertures or slots to change angle or depth independently. The locking members provide dynamic locking at selected positions, allowing flexible reconfiguration without affecting the other parameter.
3Manufacturing precision
If multiple adjustment functions are integrated into one mechanism, then the device is more compact, but the adjustment precision for each parameter decreases
Solution Approach 1:
The system separates angle and depth adjustment into distinct mechanisms with dedicated fasteners and locking members. The angle adjustment member features arcuate apertures with specific angular increments, while the depth adjustment uses slots with specific linear increments. This segmentation enables precise control of each parameter independently without compromising the precision of either adjustment.
Data Source
AI summary
A seat back angle and depth adjustment assembly includes an angle adjustment member that includes a first aperture and a second aperture, a first fastener is received by the first aperture and is configured to engage an angle adjustment locking member, and a second fastener is received by the second aperture and is configured to engage a depth adjustment locking member.