Adjustable Leg Support Module with Pivot and Linear Bearings
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Solution Overview
Problem
Current flight passenger seating devices do not provide adequate comfort and flexibility for passengers, as they lack adjustable leg support mechanisms that can be easily customized to individual preferences.
Innovation Solution
A flight passenger seating device with a leg support module featuring pivot bearing units, a linear bearing unit, and a reset mechanism, allowing the leg support element to be adjustable and automatically return to a stowed position, providing enhanced comfort and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed leg support structure is used, then the device complexity is low, but the adaptability and passenger comfort are insufficient
Solution Approach 1:
The leg support element is transformed from a fixed structure to a dynamic, adjustable one through the implementation of pivot bearing units and a linear bearing unit. These mechanical components enable the leg support element to move between multiple positions (retracted, extended, and intermediate positions) while maintaining structural integrity. This dynamic design allows the seating device to adapt to different passenger leg lengths and comfort preferences without requiring an overly complex control system.
2Ease of operation
If an adjustable leg support mechanism is added, then the passenger comfort and adaptability improve, but the device complexity increases
Solution Approach 1:
The leg support mechanism is designed to be manually operated by the passenger without requiring external assistance or complex electronic controls. The passenger can directly manipulate the leg support element to achieve the desired position, and the reset mechanism automatically returns it to the retracted position when not in use. This self-service approach simplifies the user interface while maintaining the adjustable functionality needed for comfort.
Solution Approach 2:
The leg support mechanism is divided into distinct functional modules: pivot bearing units for rotational movement, a linear bearing unit for translational adjustment, and a reset mechanism for automatic retraction. This segmentation allows each component to perform its specific function efficiently, reducing the overall complexity compared to a monolithic adjustable mechanism.
3Adaptability or versatility
If multiple bearing units are implemented for adjustability, then the adaptability improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The bearing units (pivot bearing units and linear bearing unit) are designed to perform multiple functions within a single component structure. For example, the pivot bearing units simultaneously enable rotational movement and provide structural support, while the linear bearing unit handles both translational adjustment and positioning. This multi-functionality reduces the total number of separate components needed, thereby simplifying manufacturing while maintaining the required adaptability.
Data Source
AI summary
A flight passenger seating device with a flight passenger seat has at least one seat bottom and at least one leg support module comprising a leg support element that is embodied at least partly movably with respect to the seat bottom, whereinthe leg support module comprises at least two pivot bearing units and a linear bearing unit, by means of which the leg support element is supported movably with respect to the seat bottom.