Adjustable Support Arm With Quick-Release Joint and Motion Damping
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Solution Overview
Problem
Existing adjustable support arms lack sufficient adjustability and ease of use, particularly in accommodating different users and positions, such as transitioning between seated and standing positions at height-adjustable desks or in hot-desking environments.
Innovation Solution
An adjustable support arm with features like quick-release joints, friction cartridge assemblies, adjustable panning inserts, and accessory bracket assemblies, enabling wide range of height, depth, tilt, and swivel adjustments, along with easy attachment and detachment of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If adjustable support arms provide fixed connection between arm assembly and base assembly, then structural stability is improved, but ease of operation for removal and attachment deteriorates
Solution Approach 1:
The connection system is divided into modular components: a quick-release joint with spring-loaded latch mechanism that can be easily engaged and disengaged, allowing the arm assembly to be separated into detachable segments while maintaining structural integrity when connected
Solution Approach 2:
The spring-loaded latch is pre-positioned and pre-loaded to automatically engage with the connector shaft upon insertion, eliminating the need for manual alignment or complex fastening procedures while ensuring immediate structural stability upon connection
2Measurement precision
If friction cartridge assembly is added to reduce slack and dampen movement, then positioning precision is improved, but device complexity increases
Solution Approach 1:
A friction cartridge assembly is introduced as an intermediary component between the connector shaft and the joint housing. This cartridge contains friction elements that can be adjusted via set screws to control the friction force, thereby dampening unwanted movement and reducing slack without requiring complex control systems
Solution Approach 2:
The friction level in the cartridge assembly is made adjustable through set screws that press against friction elements, allowing the user to change the friction parameter to optimize between reducing slack and enabling smooth adjustment movements based on specific application needs
3Ease of operation
If quick-release joint mechanism is implemented for easy detachment, then ease of operation is improved, but reliability of connection may deteriorate
Solution Approach 1:
The spring-loaded latch mechanism is designed to be self-actuating: when the arm assembly is inserted, the spring automatically pushes the latch into the engaged position with the connector shaft, creating a secure connection without requiring external assistance or complex locking procedures
Solution Approach 2:
The spring mechanism provides a counteracting force that continuously presses the latch against the connector shaft, creating a reliable mechanical interlock that resists accidental detachment while still allowing intentional release when the latch is actuated
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
Provides enhanced adjustability and ergonomic flexibility, accommodating various users and positions with reduced effort, enhancing user comfort and workspace efficiency.
Implementation Method 1
The quick-release joint may comprise a spring-loaded latch coupled to the base assembly which releasably engages an indentation in a connector shaft secured to the arm assembly
Implementation Method 2
The friction cartridge assembly may comprise a taper-lock bushing surrounding a portion of the connector shaft. Set screws positioned adjacent to the taper-lock bushing can be utilized to cause the taper-lock bushing to deflect inward towards the connector shaft as the set screws are driven inward, thus increasing the friction between the connector shaft and the taper-lock bushing and, in turn, dampening the side-to-side movement of the arm assembly
Data Source
Figure 1~2
Figure 3~4C
Figure 5A~6B
AI summary
An adjustable support arm capable of providing users with a wide range of height, depth, tilt, and swivel options. The adjustable support arm may comprise an arm assembly releasably mounted to a base assembly In further embodiments, the adjustable support arm may also comprise an articulating joint connected to the arm assembly, and an accessory bracket assembly connected to the articulating joint. A quick-release joint comprising a spring-loaded pivot latch may be utilized to releasably connect the arm assembly to the base assembly To dampen side-to-side movement of the arm assembly, the adjustable support arm may also comprise a friction cartridge assembly comprising a taper-lock bushing and one or more set screws. A ring-shaped, adjustable panning insert can be coupled to the arm assembly to restrict the range of side-to-side motion of the support arm. The adjustable arm can further comprise a quick-release accessory fastening mechanism for easy removal and attachment of a mounted object (e.g., an electronic display, keyboard, or other item) to the support arm.