Offset Joint Axes for Airline Seat Attachment Operability
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Solution Overview
Problem
Existing seat attachment devices for aircraft passenger seats face challenges in usability, particularly when multiple devices are used simultaneously, leading to restricted operability and increased risk of injury during operation.
Innovation Solution
A seat attachment device with a support arm piece, an intermediate piece, and a device receiving piece, featuring offset joint axes that are oriented at right angles to each other, allowing for improved stowability and reduced risk of injury by enhancing the spatial separation of joint axes, thus facilitating easier operation and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If joint axes are arranged with offset and at right angles to each other, then operability and safety are improved by reducing finger injury risk, but device complexity increases due to additional spatial constraints
Solution Approach 1:
The patent applies dimensionality change by arranging the first and second joint axes at right angles to each other in at least one projection direction. This spatial separation in multiple dimensions creates offset between the joint axes, which improves operability by reducing finger injury risk while managing device complexity through structured spatial arrangement.
2Adaptability or versatility
If multiple seat attachment devices are used simultaneously, then functionality is enhanced, but operability is restricted due to interference between devices
Solution Approach 1:
The offset arrangement of joint axes in different projection directions creates spatial separation that reduces interference between multiple simultaneously used seat attachment devices, thereby maintaining operability while enhancing overall functionality.
3Volume of moving object
If joint axes are arranged with offset, then stowability is improved, but manufacturing complexity increases due to precise alignment requirements
Solution Approach 1:
The patent specifies that joint axes are arranged at right angles in at least one projection direction, which improves stowability through compact spatial arrangement. The structured geometric constraints provide clear manufacturing guidelines that manage alignment precision requirements.
Data Source
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AI summary
The invention relates to a seat attachment device, in particular an airline passenger seat attachment device, for the movable fastening of an object (12) to a seat (14), comprising a supporting arm part (16), a device receiving part (18) for fastening the object (12), an intermediate part (20) for coupling the device receiving part (18) to the supporting arm part (16), and at least one first joint (22) which is disposed between the supporting arm part (16) and the intermediate part (20) and has a first joint axis (24), and a second joint (26) which is disposed between the intermediate part (20) and the device receiving part (18) and has a second joint axis (28). According to the invention, the intermediate part (20) provides an offset (30) which offsets the first joint axis (24) of the first joint (22) and the second joint axis (28) of the second joint (26) with respect to one another in at least one projection direction.