Seat-Back Media Insert Fixing to Prevent Tongue Deformation
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Solution Overview
Problem
Existing apparatuses for attaching information media to vehicle seats, such as folding tables, often suffer from mechanical deformation damage due to the insertion and removal process, particularly when used frequently.
Innovation Solution
The apparatus employs a tongue-and-groove mechanism with a releasable fixing system, such as a screw with a specialized recess, that allows for secure attachment without mechanical deformation, using a twisting or sliding mechanism that can only be operated with a specific tool, ensuring robust and secure mounting while preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the insert uses rigid protruding tongues that engage in grooves for removable mounting, then the insert can be easily inserted and removed, but the tongues can be damaged or destroyed due to mechanical deformation on frequent insertion or removal
Solution Approach 1:
The fixing mechanism is divided into two independent parts: the tongue (which remains undeformed) and the deformable component (the screw or bolt). This segmentation allows the tongue to serve its guiding function without bearing mechanical deformation loads, while the screw/bolt absorbs all deformation stresses during insertion and removal operations.
Solution Approach 2:
The screw or bolt acts as an intermediary element between the insert and the plate. Instead of the tongue directly engaging the groove with mechanical deformation, the screw/bolt mediates the connection by deforming elastically during insertion/removal, protecting the tongue from damage while enabling easy operation.
2Ease of operation
If the releasable fixing uses a conventional screw head (slot, cross slot, or hexagon socket), then it is easy to operate, but unauthorized persons can also operate it
Solution Approach 1:
The screw head features an asymmetric recess geometry that does not correspond to standard tool shapes. This asymmetric design ensures that only a specifically shaped tool (provided with the apparatus) can operate the screw, preventing unauthorized access while maintaining ease of operation for authorized users who have the correct tool.
3Ease of operation
If the screw can be freely removed from the insert, then it is easy to replace, but the screw may fall out or be lost during insert removal
Solution Approach 1:
The screw is nested within a recess in the insert that is sized to retain the screw when the insert is removed from the plate. This nested configuration allows the screw to be easily accessed and replaced by authorized personnel while preventing the screw from falling out or being lost during normal insert removal operations.
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 design provides a robust and secure method for attaching information media to vehicle seats, reducing the risk of damage and allowing easy replacement without mechanical stress, while ensuring only authorized personnel can access the attachment mechanism.
Implementation Method 1
the insert has at least one tongue in a first border area of the insert which engages in a groove
Implementation Method 2
the releasable fixing is formed as a screw which interacts with a thread provided in the plate
Implementation Method 3
the releasable fixing comprises a lock which interacts with the plate
Implementation Method 4
The bolt can for example be spring-mounted so that for example it always aims to reach a locked position
Data Source
AI summary
The present invention relates to an apparatus, in particular for attaching to the back of a seat. The apparatus comprises a plate with a flat recess and an insert which is removably mountable in the flat recess of the plate and is configured to receive an information medium which is viewable when the insert is mounted in the flat recess of the plate. For releasably fixing of the insert on mounting of the same in the flat recess, the insert has the following: at least one tongue on a first border area of the insert for engagement in at least one correspondingly shaped groove in the plate, and at least one releasable fixing that is present in or on at least one second border area of the insert and that is operable by twisting and/or sliding at least one component.