Vehicular Seat Recess Flat Bottom Drawing

Solution Overview

Problem

Current technologies fail to effectively form deep and narrow depressions with a flat surface at the bottom on vehicular seat surfaces, which are required for high-grade car models to enhance appearance and design.

Innovation Solution

A vehicular seat design that includes a recess with a flat surface at the bottom, achieved by providing drawing members on the skin material and securing them to supporting members inside the seat, allowing for the formation of a three-dimensional depression on the seat surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional drawing structures are used to form depressions on seat surfaces, then the manufacturing process is simple, but deep and narrow depressions with a flat surface at the bottom cannot be effectively formed

Engineering Contradiction:

Improvedepression shape precisionVSAvoiddrawing structure complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The drawing structure is divided into multiple drawing members (first drawing member and second drawing member) that work together to form the depression. Each drawing member is secured to supporting members at specific positions, allowing the complex depression shape to be achieved through coordinated action of segmented components rather than a single complex structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention transitions from conventional two-dimensional surface drawing to three-dimensional depression formation with controlled depth and flat bottom surface. By positioning drawing members at different depths and securing them to supporting members within the seat cushion, the structure creates a multi-level depression that achieves the desired flat-bottomed shape

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Shape

If multiple drawing members are used to form the recess, then the depression shape is achieved, but the manufacturing process becomes more complex

Engineering Contradiction:

Improverecess shapeVSAvoidmanufacturing ease

Core Design Contradiction:

ShapeVSEase of manufacture

Solution Approach 1:

The drawing structure is divided into multiple drawing members (first drawing member and second drawing member) that work together to form the depression. Each drawing member is secured to supporting members at specific positions, allowing the complex depression shape to be achieved through coordinated action of segmented components rather than a single complex structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The drawing members are pre-secured to the supporting members before final assembly, and the skin material is drawn over them during the manufacturing process. This preliminary positioning ensures the depression shape is formed correctly without requiring complex post-processing or adjustment

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10414304B2Seat

Publication Date: 2019.09.17 TACHI S CO LTD

AI summary

A vehicular seat provided in a seat surface with a deep and narrow depression having a flat surface at the bottom is provided. The vehicular seat is a seat for automobiles including: a seat cushion to be a seating face portion of the seat; and a seat back provided on the back of the seat cushion and to be a backrest portion of the seat. A recess having a flat surface at the bottom is provided in the surface of at least one of the seat cushion and the seat back.