In-Vehicle Bed Assembly with Extendable Leg Rest and Ottoman
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Solution Overview
Problem
Current vehicle passenger seats cannot fully recline to allow occupants to lie down comfortably in a horizontal position due to insufficient space for foot elevation, as the feet hit the dashboard compartment when reclining.
Innovation Solution
An in-vehicle bed assembly is provided, which includes a passenger seat and a movable ottoman that form a substantially flat surface, along with an extendable leg rest and a rotatable platform to create a horizontal sleeping position, and an optional mattress that can be stored compactly for space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the passenger seat is reclined to a horizontal position, then the occupant's comfort is improved, but the feet hit the dashboard compartment due to insufficient space
Solution Approach 1:
The invention divides the seating system into separate functional components: the passenger seat for upper body support and an extendable leg rest with ottoman for lower body support. This segmentation allows the seat to recline horizontally while the leg rest extends forward to accommodate the occupant's feet, resolving the space conflict between seat recline and foot clearance.
2Adaptability or versatility
If the seat is designed to fully recline, then horizontal sleeping position is achieved, but the structure becomes more complex
Solution Approach 1:
The leg rest assembly serves multiple functions: it acts as a support surface when extended, provides storage space when retracted, and can be adjusted to various positions. The ottoman can function as both a footrest and a storage compartment, reducing the need for separate components and simplifying the overall structure while maintaining full recline capability.
Solution Approach 2:
The mattress is stored in a rolled configuration within the leg rest assembly, and the leg rest itself can be stowed under the seat when not in use. This nesting arrangement allows the horizontal sleeping configuration components to be compactly stored within the existing seat structure, avoiding additional external components.
3Ease of operation
If a mattress is added to create a flat sleeping surface, then comfort is improved, but the device complexity and storage requirements increase
Solution Approach 1:
The mattress is stored in a rolled configuration within the leg rest assembly, utilizing the existing structural space. This nesting arrangement allows the mattress to be compactly stored without requiring additional external storage compartments, maintaining a clean overall structure while providing a comfortable sleeping surface when deployed.
Solution Approach 2:
The mattress is designed as a thin, flexible layer that can be easily rolled and stored. This thin-film approach provides sufficient comfort for sleeping while minimizing the space required for storage and reducing the overall complexity of the bed assembly 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
Enables occupants to lie down in a fully reclined and horizontal position with elevated feet, enhancing comfort and flexibility in vehicle seating configurations.
Implementation Method 1
The arm is rotatable between a first position and a second position. In the first position, the arm extends forward and the platform is placed against a front end of the ottoman, and in the second position, the arm extends backward and the platform is placed on the seat cushion to cover a slope of the seat cushion
Implementation Method 2
a roller storage attached to the mattress and configured to roll the mattress into a compact form for storage
Data Source
AI summary
An in-vehicle bed assembly includes a passenger seat having a seat cushion and an extendable leg rest, and a movable ottoman positioned in front of the passenger seat. When the leg rest extends from the passenger seat, the seat cushion, the extended leg rest, and the ottoman form a substantially flat surface for an occupant to lie in a horizontal position.