Head and neck adjusting device for chair
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Solution Overview
Problem
Conventional office chairs with fixed headrests fail to accommodate users of different statures and bodily forms efficiently, and the headrests are difficult to clean due to their fixed and non-removable design.
Innovation Solution
An adjustable head/neck support device with a clamping mechanism, linear and angle adjusting members, and locking mechanisms that allow for height and angle adjustments, easy mounting and detachment, and a removable covering layer for easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the headrest is fixed on the office chair, then the structure is simple and stable, but it cannot be removed for cleaning and cannot be adjusted for different users
Solution Approach 1:
The headrest device is divided into separable components: a clamping member for mounting on the chair backrest, a holder with adjusting members, and a headrest cushion. This segmentation allows the headrest to be detached for cleaning while maintaining structural stability when assembled, and enables adjustment through the separate holder component.
Solution Approach 2:
The holder incorporates linear adjusting members and angle adjusting members with pivotal connections that enable dynamic adjustment of the headrest's position and orientation. These adjustable mechanisms allow the headrest to adapt to different user requirements while maintaining a stable fixed position when locked in place.
2Adaptability or versatility
If the headrest has a fixed height, then the manufacturing is simple, but it cannot accommodate users of different statures
Solution Approach 1:
The linear adjusting member within the holder enables dynamic height adjustment of the headrest. This mechanical adjustment mechanism allows the headrest to reach different heights to accommodate various user statures, while the overall manufacturing remains relatively simple by using standard mechanical components rather than complex electronic systems.
3Ease of operation
If the headrest is fixed and non-removable, then the structure is stable, but it is difficult to clean during long-term utilization
Solution Approach 1:
The headrest system is segmented into a removable headrest cushion and a stable holder assembly with clamping mechanism. The cushion can be completely detached from the chair for easy cleaning and maintenance, while the holder remains stably mounted on the chair backrest, maintaining structural integrity when assembled.
4Reliability
If the headrest is fixed, then no adjustment mechanisms are needed, but it cannot provide efficient support for different users
Solution Approach 1:
The holder incorporates linear adjusting members for height adjustment and angle adjusting members with pivotal connections for orientation adjustment. These mechanical adjustment mechanisms enable the headrest to provide reliable and efficient support tailored to different user requirements, while using simple mechanical components rather than complex electronic systems.
Data Source
AI summary
A head/neck adjusting device includes a base, a clamping member, a holder, an adjusting and fastening knob, a plurality of locking members, and a head/neck support. The clamping member is clamped on a backrest of a chair. The holder includes a linear adjusting member inserted through the base, and an angle adjusting member connected with the linear adjusting member. The adjusting and fastening knob extends through the base and the linear adjusting member. Each of the locking members is mounted on the angle adjusting member and provided with a positioning projection. The head/neck support is provided with a plurality of support posts extending through the locking members. Each of the support posts is provided with a plurality of positioning holes, and the positioning projection of each of the locking members is positioned in one of the positioning holes.