Vehicle Seat Fitting Adhesive Bonding Backrest Structure
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Solution Overview
Problem
Existing vehicle seat designs face challenges in optimizing the connection between the backrest structure and the fitting upper part in terms of strength and cost, often requiring additional reinforcement parts to prevent cracking and ensure secure attachment, which increases the number of components and complexity.
Innovation Solution
A form-fitting connection between the fitting upper part and the backrest structure using adhesive, eliminating the need for screws or other connecting elements, thereby enhancing strength and reducing the number of components by absorbing forces through the adhesive bond and preventing rotational movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connections are used to connect the fitting upper part to the backrest structure, then the connection strength is improved, but the backrest structure must be reinforced with additional parts such as inserts
Solution Approach 1:
The patent combines the fitting upper part with the backrest structure by integrating it into a recess, merging two separate components into a unified assembly that eliminates the need for additional reinforcement parts while maintaining connection strength
Solution Approach 2:
The patent extracts the screw connection and reinforcement insert from the design, removing unnecessary components while preserving the essential function of connecting the fitting upper part to the backrest structure through the recess integration
2Strength
If reinforcement parts such as inserts are added to the backrest structure, then the connection strength is improved, but the weight of the backrest structure increases
Solution Approach 1:
By merging the fitting upper part directly into the recess of the backrest structure, the design eliminates the need for separate reinforcement parts, thereby maintaining connection strength while avoiding additional weight from inserts or reinforcement elements
3Reliability
If multiple connecting elements such as screws and pins are used, then the reliability of the connection is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent merges the fitting upper part into the recess of the backrest structure, creating an integrated connection that achieves reliable attachment through the recess geometry itself, eliminating the need for multiple separate connecting elements and simplifying manufacturing
Solution Approach 2:
The recess structure serves its dual function of both housing the fitting upper part and providing the connection mechanism itself, making the structure self-sufficient and eliminating the need for additional connecting elements
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 solution provides a strong, lightweight, and cost-effective connection that maintains the structural integrity of the backrest shell without additional reinforcement, allowing for a weight-optimized design and simplified assembly, while also enabling modular design flexibility and integration of functions without compromising safety or aesthetics.
Implementation Method 1
is connected to the backrest structure by means of an adhesive
Implementation Method 2
at least one relative rotation between the fitting upper part and the backrest structure about an axis running in the transverse direction is avoided. Due to the form-fitting connection, individual contours of the upper part of the fitting stand in the way of individual contours of the backrest structure
Data Source
Figure 1~2
Figure 3~6
Figure 7~8
AI summary
The invention relates to a vehicle seat (1), in particular a motor vehicle seat, with a seat substructure (200) which, as a supporting structure, has a seat substructure structure (210) of shell-type design, a backrest (100) which, as a supporting structure, has a backrest structure (110), and at least one fitting (10) which connects the seat substructure structure (210) to the backrest structure (110), wherein the fitting (10) has a fitting upper part (20) fastened to the backrest structure (110) and a fitting lower part (30) fastened to the seat substructure structure (210). The fitting upper part (20), excluding additional connecting elements, is arranged in a form-fitting manner in a depression (118) in the backrest structure (110) and is connected in an integrally bonded manner to the backrest structure (110) by means of an adhesive (50).