Integrated Headrest Connecting Member for Vehicle Seat Frame
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Solution Overview
Problem
The complexity of the seat back frame structure in vehicle seats, which includes a pipe-shaped frame for supporting the headrest, leads to a cumbersome design with an increased number of parts and labor-intensive assembly, particularly when a separate bracket is used for attaching the headrest stay.
Innovation Solution
An integrated connecting member with a frame part and a bracket part, reinforced by a plate-shaped structure including flange parts and ribs, simplifies the attachment of the headrest to the seat back, reducing the number of components and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pipe-shaped frame is used to support the headrest, then the headrest can be arranged on the seat back, but the structure of the seat back frame becomes complex
Solution Approach 1:
The patent integrates the headrest support function directly into the seat back frame by providing a through-hole that passes through the seat back frame in the thickness direction. The headrest stay is inserted through this through-hole, merging the support function with the frame structure itself, thereby eliminating the need for separate pipe-shaped frames or brackets and simplifying the overall structure.
2Reliability
If a separate bracket is provided for attaching the headrest stay, then the headrest can be fixed to the seat back, but the number of parts increases making the seat structure complex
Solution Approach 1:
The patent combines the bracket function with the seat back frame by forming a through-hole directly in the frame. This integration eliminates the need for separate brackets, reducing the number of parts while maintaining the attachment stability through the direct insertion and fixation of the headrest stay through the through-hole.
3Reliability
If separate components are used for headrest attachment, then the attachment can be achieved, but labor is required to fix the headrest stay and bracket
Solution Approach 1:
By integrating the attachment function into the seat back frame through the through-hole structure, the patent reduces the number of assembly steps. The headrest stay is directly inserted through the through-hole and fixed in one operation, eliminating the need for separate bracket installation and reducing labor requirements.
4Device complexity
If the connecting member is simplified, then the seat structure becomes simpler, but the border part between bracket part and frame part may be weakened
Solution Approach 1:
The patent integrates the frame support function directly into the seat back frame through the through-hole, eliminating the need for a separate connecting member with a complex bracket-frame border. This integration maintains strength by using the frame's own structure to provide support, avoiding weak border areas between separate components.
Data Source
AI summary
A vehicle seat includes: a seat cushion; a seat back that is connected to a rear part of the seat cushion; a head rest; and a connected member that is provided in the head rest. The head rest is arranged on top of the seat back in a standing state through the connecting member. The connecting member has a frame part, which constitutes a frame of the head rest, and a bracket part, which is fixed to the seat back side, in an integrated manner.