Vehicle Seat for a Motor Vehicle Comprising a Deformation Device
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Solution Overview
Problem
Existing vehicle seat designs face difficulty in controlling the displacement movement of the backrest relative to the seat part during an accident-induced overload, leading to excessive acceleration of the seat occupant.
Innovation Solution
Incorporating at least one sliding element between the fitting and the seat side part to reduce friction, allowing for improved control of the backrest's displacement movement relative to the seat part during an accident-induced overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fitting or deformation element is directly supported on the seat side part, then the structural connection is simple and strong, but the friction component is considerable and fluctuates, making displacement movement difficult to control
Solution Approach 1:
A sliding element is introduced as an intermediary component between the fitting/deformation element and the seat side part. This sliding element reduces the friction component during displacement movement, making the backrest's movement more controllable and reliable during accident-induced overload while maintaining structural strength.
2Strength
If metal-to-metal contact is used between fitting and seat side part, then the connection strength is high, but the friction component is considerable and causes unreliable displacement control
Solution Approach 1:
The sliding element serves as a mediator that replaces direct metal-to-metal contact between the fitting and seat side part. It maintains the structural connection strength while significantly reducing the friction component, enabling reliable displacement control during overload events.
Solution Approach 2:
The sliding element changes the friction parameter by providing a low-friction interface between the fitting and seat side part. This parameter change allows the connection to maintain strength while reducing friction to acceptable levels for controlled displacement movement.
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 reduced friction component enables a more reliable and controllable displacement movement of the backrest, effectively mitigating excessive acceleration of the seat occupant during accidents.
Implementation Method 1
the friction component between the fitting or the associated deformation element on the one hand and the laterally corresponding seat side part on the other hand can thus be reduced
Data Source
AI summary
A vehicle seat for a motor vehicle has a backrest which is mounted, so as to be pivotable about a pivot axis, on a fitting that is located on the associated seat side and is connected to a seat side part of a seat part, the seat side part being located on the seat side, via a deformation device. The deformation device has a bolt that is accommodated in a deformation element of the fitting and can be displaced along a deformation guide in the event of an accident-induced overload. A sliding element is located between the fitting and the seat side part.