Arm rest apparatus
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Solution Overview
Problem
Conventional arm rest structures struggle to provide stable and uniform support for the arm across various poses and angles, leading to user fatigue and inaccurate arm movement.
Innovation Solution
The arm rest apparatus features a horizontal movement module with two-degree-of-freedom movement, a damping part to control movement resistance, and an arm support module that rotates and adjusts to compensate for arm weight and pose changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional arm rest structures are used to support the arm, then the structure is simple, but the arm cannot be supported stably and uniformly in various poses and angles
Solution Approach 1:
The arm rest apparatus is divided into multiple functional modules: a horizontal movement module with two-degree-of-freedom movement, a damping part for resistance control, and an arm support module for weight compensation. Each module independently addresses specific support requirements, enabling stable arm support across various poses without requiring a monolithic complex structure.
Solution Approach 2:
The arm rest apparatus employs dynamic components including rotary shafts for multi-directional movement, damping mechanisms for adjustable resistance, and weight compensation systems that adapt to different arm positions. These dynamic elements allow the structure to maintain stability while accommodating varying arm poses and angles.
2Measurement precision
If conventional arm rest structures are used, then the device is simple, but it cannot guide arm movement accurately through ergonomic movement
Solution Approach 1:
The movement guidance function is segmented into the horizontal movement module that provides two-degree-of-freedom motion and the arm support module that rotates around a rotary shaft. This segmentation allows precise control of arm movement in multiple directions while maintaining modular simplicity.
Solution Approach 2:
The apparatus utilizes parameter changes through the damping mechanism that adjusts resistance levels and the weight compensation system that adapts to different arm positions. These parameter adjustments enable accurate ergonomic movement guidance without requiring complex control systems.
3Ease of operation
If conventional arm rest structures are used, then the structure is simple, but it cannot effectively relieve user manipulation fatigue
Solution Approach 1:
The arm support module incorporates a weight compensation mechanism that counteracts the user's arm weight through a rotary shaft system. This anti-weight function reduces the effort required to move and position the arm, effectively relieving manipulation fatigue while maintaining operational simplicity.
Solution Approach 2:
The damping part acts as an intermediary between the user's arm and the arm support module, providing controlled resistance that smooths movements and reduces sudden shocks. This intermediary mechanism enhances ease of operation by making arm movements more controlled and less fatiguing.
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
This solution enables precise and fatigue-reduced arm movement by providing stable support and adjustable resistance across various arm poses, enhancing user comfort and accuracy during tasks.
Implementation Method 1
a damping part which provides a resistance according to the two-degree-of-freedom movement of the horizontal movement module so as to control damping according to a horizontal movement of the arm
Implementation Method 2
a horizontal movement module having two-degree-of-freedom movement with respect to the fixed part... a first link rotatably connected to a first rotary shaft and rotatably connected to a second rotary shaft parallel with the first rotary shaft
Implementation Method 3
an arm support module which is supported by the horizontal movement module to be movable and compensates weight of a user's arm
Data Source
AI summary
An arm rest apparatus, according to one embodiment, may comprise: a fixed part fixed to an external object; a horizontal movement module having one end rotatably connected to the fixed part and the other end having two-translational-degree-of-freedom movement with respect to the fixed part; and an arm support module installed to have two rotational degrees of freedom with respect to the other end of the horizontal movement module.