Vehicle Seat Load Holding Device with Adjustable Pivoting
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Solution Overview
Problem
Existing holding devices for loads on vehicle seats, particularly those using Isofix, are complicated to use and offer limited resistance to tilting and vertical movement, restricting their application to loads with specific geometries.
Innovation Solution
A holding device with a support element pivotally connected to a support element, featuring an adjusting element that sets an angle α between the elements to secure against both horizontal rotation and vertical movement, and includes Isofix latching devices for easy attachment and detachment, allowing for adjustable angles and secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the holding device uses a pivotal connection between support elements with adjustable angles, then the adaptability to different load geometries is improved, but the device complexity increases due to additional adjusting elements and clamps
Solution Approach 1:
The support elements are designed with universal pivotal connections that can accommodate multiple load geometries through angle adjustment. The same basic structure serves different mounting configurations, eliminating the need for multiple specialized fixtures.
Solution Approach 2:
The holding device incorporates dynamically adjustable support elements that can change their relative angles during installation. This allows the device to adapt to different load geometries while maintaining a relatively simple base structure that doesn't require complex pre-configured mechanisms for each geometry type.
2Reliability
If the holding device provides high resistance to tilting and vertical movement, then the reliability of load securing is improved, but the ease of operation deteriorates due to increased resistance to movement during installation
Solution Approach 1:
The fastening devices are designed to engage with the Isofix brackets in a preliminary action that establishes the basic secure connection first. The angle adjustment and resistance mechanisms are then activated in sequence, allowing easy initial installation followed by progressive securing.
Solution Approach 2:
The holding device employs a periodic action sequence where support elements are gradually engaged and locked at different stages. The first support element provides initial stability, followed by sequential engagement of additional elements that progressively increase resistance to tilting and vertical movement, making installation manageable in steps rather than requiring overcoming all resistance simultaneously.
3Reliability
If the holding device includes multiple fastening devices for secure attachment, then the resistance to vertical movement is improved, but the ease of manufacture deteriorates due to increased assembly complexity
Solution Approach 1:
The fastening system is segmented into modular components where each fastening device is a separate, standardized unit. This segmentation allows for independent manufacturing of each fastening element using standardized processes, reducing overall assembly complexity while maintaining multiple attachment points for high resistance to vertical movement.
Data Source
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AI summary
The invention relates to a holding device (2) for a load (120) on a vehicle seat (100), comprising: a bearing element (9) for fixing a load (120); a supporting element (11) which is pivotably connected to the bearing element (9); at least one fastening device (6) that engages in a holding clamp and is connected to the supporting element (11) and/or the bearing element (9); and an adjusting element (14), said adjusting element (14) being used to adjust an angle α between the supporting element (11) and the bearing element (9) in such a way that, in the assembled state, the bearing element (9) can be spread against a seat surface (104) and the supporting element (11) can be spread against a backrest (102) of the vehicle seat (100), and a rotation of the holding device (2) about a horizontal axis and/or a movement perpendicular to the seat surface (104) is prevented.