Technician's work chair
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Solution Overview
Problem
Technicians working on vehicle assembly lines face discomfort due to the need to raise their arms and tilt their necks, and lack of ergonomic support while installing parts and fasteners under vehicles, along with inadequate tracking of tasks.
Innovation Solution
A technician's work chair with an air cushion assembly for reduced friction, an ergonomic seat assembly with adjustable inclination, and an electronic task guiding system for task monitoring and assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a technician works on the underside of a vehicle for extended periods, then task completion is achieved, but physical discomfort and strain increase due to raised arms and tilted neck
Solution Approach 1:
The seatback portion incorporates an inclination adjusting mechanism that allows dynamic adjustment of the seating angle. This enables the technician to optimize the seat position for comfort while working on the vehicle underside, reducing physical strain during extended task completion
Solution Approach 2:
The air cushion assembly adjusts air pressure to control the chair's elevation and friction characteristics. By changing the air pressure parameter, the system optimizes both the technician's comfort level and the ease of moving the chair during productivity-intensive work periods
2Ease of operation
If the chair is positioned for ergonomic support during vehicle assembly tasks, then technician comfort improves, but mobility and ease of repositioning may be reduced
Solution Approach 1:
The air cushion assembly uses pneumatic pressure to create a low-friction interface between the chair and floor surface. This allows the chair to be easily repositioned by the technician even when positioned for ergonomic comfort, maintaining both comfort and mobility during vehicle assembly tasks
3Device complexity
If traditional seating is used during vehicle assembly, then device simplicity is maintained, but task tracking and monitoring capabilities are insufficient
Solution Approach 1:
The work chair integrates multiple functions including ergonomic seating, task monitoring display, and communication capabilities within a single device. The display device mounted on the chair provides task tracking information without requiring separate monitoring systems, reducing information loss while maintaining reasonable device simplicity
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
The chair provides ergonomic support and ease of movement, allowing technicians to perform tasks comfortably and efficiently while tracking their progress, reducing strain and improving productivity.
Implementation Method 1
an air cushion assembly (16) that creates an air boundary between the air cushion assembly of the technician's work chair and a floor surface beneath the technician's work chair
Data Source
AI summary
A technician's work chair includes a frame, first, second and third air cushion devices, a seat assembly and an electronic task guiding system. The seal assembly has a cushion portion and a seatback portion. The cushion portion is supported to the seat supporting portion of the frame. The seatback portion has an inclination adjusting mechanism operable to change an angle of inclination of the seatback portion relative to the frame. The electronic task guiding system is supported to the frame, the electronic task guiding system being configured to provide the technician with task related signals.