Office Chair Neck Support Coupling for Auto-Adjusting Position
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Solution Overview
Problem
Existing office chair neck support adjustment mechanisms are cumbersome and require manual acrobatic skills or multiple adjustments to achieve optimal positioning, especially when users change seating positions frequently, leading to suboptimal neck support and increased neck tension.
Innovation Solution
An auto-adaptive neck support mechanism that utilizes the backrest as an actuator, shifting weight to automatically adjust the neck support through a coupling mechanism, eliminating the need for manual adjustments and ensuring optimal positioning without levers or cable pulls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment mechanisms are used for neck support, then the neck support can be adjusted to different positions, but the adjustment process requires acrobatic skill and multiple adjustments making it inconvenient
Solution Approach 1:
The neck support adjustment mechanism uses the user's own body weight and backrest movement to automatically adjust the neck support position. When the user leans back or forward, the backrest moves accordingly, and this movement is transmitted through the coupling mechanism to automatically position the neck support, eliminating the need for manual adjustment operations.
Solution Approach 2:
The neck support is designed with a dynamic coupling mechanism that allows it to move and adjust its position based on the backrest's movement. The coupling mechanism includes movable connections that enable the neck support to follow the backrest's inclination changes automatically, providing continuous adaptability without fixed manual adjustment steps.
2Device complexity
If the neck support is rigidly connected to the backrest after manual adjustment, then the structure is simple, but the neck support cannot adapt when the user changes seating position
Solution Approach 1:
The coupling mechanism between the backrest and neck support uses dynamic movable connections instead of rigid fixed connections. The mechanism includes articulated joints and coupling elements that allow the neck support to move relative to the backrest, enabling automatic adaptation when the user changes seating position while maintaining structural integrity.
Solution Approach 2:
A coupling mechanism acts as an intermediary between the backrest and neck support, transmitting movement from the backrest to the neck support. This intermediary mechanism includes movable connections and coupling elements that enable automatic position adjustment of the neck support based on backrest movement, providing adaptability without requiring complex direct connection structures.
Data Source
Figure 1A~1B
Figure 2A
Figure 2B
AI summary
The support (10) has a coupling region (12) including a coupling unit (14) for a carrier frame fixed around a rotational axis (16), and another coupling unit (15) that is pivotable for a backrest frame. The coupling units are formed such that the support is automatically rotated against a backrest around the rotational axis during force application. The coupling region is pivoted in a backward direction (17a) equal to the force application. An upper support region (11) is pivoted in a forward direction (17b) set opposite to the force application, and supports a head or neck. An independent claim is also included for a backrest comprising a backrest frame secured at a carrier frame.