Integrated Headrest Video Screen Mounting for Flush Collision Safety
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Solution Overview
Problem
Existing seat back video display systems in vehicles are difficult to mount securely, often protrude, and pose safety risks due to exposed detachable components, which can be dislodged by passenger contact, especially in limited spaces and during collisions.
Innovation Solution
A head restraint system with an integrated video screen that features a mounting structure coupled to the seat back, a housing with recessed openings for the display and media player, and energy dissipation elements to absorb collision forces, ensuring the display is flush or recessed and securely attached, reducing the risk of dislodgment and injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the video display unit is mounted on the outer surface of the seat back, then the display is easily accessible and visible, but it protrudes and can be dislodged by passenger contact
Solution Approach 1:
The video display unit is nested within a recess in the seat back, with the display surface substantially flush with or recessed from the outer surface. This nesting approach maintains accessibility while eliminating protrusion that causes dislodgment
Solution Approach 2:
A mounting structure with retainers acts as an intermediary between the display housing and the seat back. The retainers engage with mounting apertures to securely anchor the display unit, preventing dislodgment while maintaining flush mounting
2Ease of operation
If the video display unit is allowed to pivot about an axis to improve viewing angle, then passenger comfort is improved, but the mounting structure becomes more complex and may be dislodged
Solution Approach 1:
The mounting structure incorporates a retainer that can rotate about a pivot axis, allowing the display unit to dynamically adjust its viewing angle while maintaining secure engagement through the pivot mechanism
3Reliability
If keepers or caps are exposed to the passenger to prevent pivot post removal, then the mounting is secured, but inadvertent contact may dislodge them
Solution Approach 1:
The harmful exposed keepers or caps are extracted from the design. Instead, a recessed mounting structure with internal retainers is used, where the securing mechanism is hidden within the seat back and not accessible to passengers
Solution Approach 2:
The mounting security is achieved in a different dimension by using retainers that engage with mounting apertures within the recess, rather than using exposed external keepers. The security mechanism is moved from the external surface to the internal structure
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 system provides a secure, aesthetically integrated, and safe mounting solution for video displays in vehicle seats, minimizing the risk of accidental dislodgment and injury during collisions while maintaining optimal viewing angles and cosmetic integrity.
Implementation Method 1
at least one energy dissipation element interposed between the seat and the assembly such that in the event of a collision, contact between the viewer and the media assembly results in at least a portion of the energy resulting from the collision being dissipated by the at least one energy dissipation element
Data Source
AI summary
A seat back video display assembly adapted to be positioned in the back of a vehicle seat having an outer skin cover. In one aspect, the assembly may comprise a receptacle member having sidewalls and a back wall so as to define an opening wherein the receptacle member is adapted to be positioned in the back of the vehicle seat. In addition, the assembly may further comprise a carrier member having sidewalls and a back wall so as to define an opening, wherein the carrier member includes at least one fastener that extends from the back wall of the carrier member and engages with the back wall of the receptacle member to secure the carrier member into the receptacle member. Moreover, the assembly may still further comprise a video display unit that is sized so as to be positioned secured within the opening in the carrier member, wherein the video display unit provides video signals.