Vehicle Seat Reclining Mechanism Bracket Integration

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Solution Overview

Problem

Existing vehicle seat reclining mechanisms require thick brackets and numerous fastening bolts, increasing the number of components and weight.

Innovation Solution

The reclining unit is secured to the back side frame via welding and to the cushion side frame via bolting, reducing the plate thickness and number of components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the stationary bracket and movable bracket are respectively bolted to the cushion side frame and back side frame through holes for connection, then the connection strength is ensured, but the plate thickness needs to be thick and fastening bolts are needed, increasing the number of components

Engineering Contradiction:
Improveconnection strengthVSAvoidnumber of components
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent merges the stationary bracket and movable bracket into a single integrated bracket structure. This unified bracket is bolted to the cushion side frame through holes, eliminating the need for separate brackets and reducing the number of components while maintaining connection strength through the integrated design

Inventive Principle:
Principle #5Merging (Combining)

2Strength

If the stationary bracket and movable bracket are respectively bolted to the cushion side frame and back side frame through holes for connection, then the connection strength is ensured, but the plate thickness needs to be thick, increasing the weight

Engineering Contradiction:
Improveconnection strengthVSAvoidbracket weight
Core Design Contradiction:
StrengthVSWeight of stationary object

Solution Approach 1:

The patent merges the stationary bracket and movable bracket into a single integrated bracket structure. This unified bracket is bolted to the cushion side frame through holes, eliminating the need for separate brackets and reducing the number of components while maintaining connection strength through the integrated design

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If the stationary bracket and movable bracket are respectively bolted to the cushion side frame and back side frame through holes for connection, then the connection strength is ensured, but the plate thickness needs to be thick

Engineering Contradiction:
Improveconnection strengthVSAvoidplate thickness
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The patent merges the stationary bracket and movable bracket into a single integrated bracket structure. This unified bracket is bolted to the cushion side frame through holes, eliminating the need for separate brackets and reducing the number of components while maintaining connection strength through the integrated design

Inventive Principle:
Principle #5Merging (Combining)

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 approach achieves a weight reduction by thinning plate thicknesses and minimizing fastening bolts, resulting in a lighter and more efficient reclining mechanism.

Implementation Method 1

The reclining unit is secured to the back side frame via the movable bracket by welding

Methodology Applied
Scientific EffectWelding: Welding

Data Source

PatentUS10773621B2Vehicle seat with reclining mechanism
Publication Date: 2020.09.15 TACHI S CO LTD
  • US10773621B2 patent drawing
  • US10773621B2 patent drawing
  • US10773621B2 patent drawing

AI summary

In a conventional vehicle seat with a reclining mechanism, a reclining unit is bolted to a seat frame. Consequently, a plate thickness has to be increased in order to ensure strength and a fastening bolt is required, producing factor which increases the number of parts. In order to solve the abovementioned problem, this vehicle seat with a reclining mechanism is configured such that a reclining unit (2) which has the reclining mechanism (5) is affixed to a back side frame (3) and a cushion side frame (40), which constitute the seat frame of the vehicle seat. The reclining unit (2) has the reclining mechanism (5), a movable bracket (6) which is affixed to the back side frame (3), and a stationary bracket (7) which is affixed to the cushion side frame (40). The reclining unit (2) is configured such that the reclining unit (2) is affixed to the back side frame (3) through the movable bracket (6) by welding and is fastened to the cushion side frame (40) by a bolt through the stationary bracket (7).