Armrest Elevating Structure With Spring-Locked Height Adjustment
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Solution Overview
Problem
Conventional armrest height adjustment mechanisms are tedious and cumbersome, requiring users to manually position and disengage lock projections, making it difficult to achieve precise and efficient height adjustments.
Innovation Solution
An elevating structure for armrests featuring an adjusting member with a main and auxiliary part, where the auxiliary part includes a push button and spring to facilitate vertical movement, and a rail member with a lock projection and spring to engage with locking recesses, allowing for easy height adjustment by releasing and re-engaging the lock projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional adjusting member with toothed groove and lock projection is used, then the armrest can be positioned at different heights, but the adjustment process is tedious and cumbersome
Solution Approach 1:
The adjusting member is designed to automatically engage with the rail member through spring-loaded lock projections that snap into toothed grooves, eliminating the need for manual positioning and locking operations. The system self-locks at predetermined height positions, making the adjustment process simple and quick.
Solution Approach 2:
The adjusting member is divided into distinct functional components: a push button for actuation, a spring mechanism for automatic engagement, and a toothed groove structure for positioning. This segmentation allows each component to perform its specific function efficiently, contributing to overall ease of operation.
2Measurement precision
If manual positioning of lock projection is required, then precise positioning can be achieved, but the operation becomes complex and difficult
Solution Approach 1:
The spring-loaded lock projection automatically positions itself into the correct toothed groove when the adjusting member is moved, achieving precise positioning without requiring manual intervention. The system self-regulates the locking action, simplifying the operation while maintaining precision.
Solution Approach 2:
The spring mechanism acts as an intermediary between the user's pushing action and the lock projection's engagement with the toothed groove. It transforms the simple pushing motion into a controlled engagement process, achieving precise positioning without complex manual operations.
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
Enables quick and precise height adjustments of armrests by allowing the lock projection to be easily released and re-engaged, simplifying the process and enhancing user convenience.
Implementation Method 1
the auxiliary part including a push button attached on the top end thereof and extending therefrom for receiving a first spring therein, such that the first spring abuts against the main part and to push the auxiliary part downward
Implementation Method 2
the rail member includes a lock member axially fixed thereon for being pressed by a second spring, with the lock projection is biased to engage with one of the locking recesses
Data Source
AI summary
An elevating structure for armrests includes an adjusting member including a main part having an engaging slot formed therein corresponding with a successive toothed groove mounted in an auxiliary part including a push button attached on the top end thereof for receiving a first spring. The first spring abuts against the main part, and the auxiliary part is pushed downward. Each tooth of the the toothed groove is provided with an inclined pushing surface corresponding to a locking recess arranged in the engaging slot. A rail member includes a lock member axially fixed thereon for being pressed by a second spring. A lid covers the lock member. The rail member further includes a window arranged thereon so that the lock projection is inserted into the rail member through the window. Thus, the lock projection is biased to engage with one of the locking recesses.