Vehicle Seat Pumping Device Spring Housing Integration

Solution Overview

Problem

The existing pumping devices for vehicle seats have increased manufacturing costs and layout size due to the need for a separate fixing means for the spring guide in the return part, which complicates the design and increases costs.

Innovation Solution

A pumping device with a lever bracket and a spring that generates an elastic force, where the spring is directly connected to a housing with a flange to fix its position, eliminating the need for a separate component to support the spring, thus reducing the number of components and layout size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate spring guide and fixing means are used to support the spring, then the spring can be properly positioned and function, but the layout size and manufacturing cost increase

Engineering Contradiction:

Improvespring positioningVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The spring guide function is merged with the housing structure. The housing includes a spring guide groove formed directly on its inner surface, eliminating the need for a separate spring guide component. This integration reduces the total number of parts while maintaining proper spring positioning and support.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The housing is designed to perform multiple functions: it encloses the mechanism, provides structural support, and incorporates the spring guide groove to support the spring. This multi-functionality eliminates the need for dedicated separate components for each function, reducing overall device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a separate spring guide and fixing means are used to support the spring, then the spring can be properly positioned and function, but the manufacturing cost increases

Engineering Contradiction:

Improvespring positioningVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The spring guide function is merged with the housing structure. The housing includes a spring guide groove formed directly on its inner surface, eliminating the need for a separate spring guide component. This integration reduces the total number of parts while maintaining proper spring positioning and support.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The housing is designed to perform multiple functions: it encloses the mechanism, provides structural support, and incorporates the spring guide groove to support the spring. This multi-functionality eliminates the need for dedicated separate components for each function, reducing overall device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If a separate spring guide and fixing means are used to support the spring, then the spring can be properly positioned and function, but the layout size increases

Engineering Contradiction:

Improvespring positioningVSAvoidlayout size

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The spring guide function is merged with the housing structure. The housing includes a spring guide groove formed directly on its inner surface, eliminating the need for a separate spring guide component. This integration reduces the total number of parts while maintaining proper spring positioning and support.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The spring guide groove is nested within the housing structure itself, utilizing the existing space and material of the housing. This nesting approach eliminates the need for additional external components and reduces the overall layout size of the device.

Inventive Principle:

Principle #7Nested doll (Nesting)

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 configuration reduces the manufacturing cost and layout size of the pumping device by integrating the spring support within the housing, enhancing the structural efficiency and reducing the complexity of the design.

Implementation Method 1

a spring connected to the lever bracket and configured to generate an elastic force while being transformed in a circumferential direction thereof so that the lever bracket may be restored to an initial position thereof

Methodology Applied

Scientific EffectElastic force: Elasticity

Data Source

PatentUS11267373B2Pumping device for seat of vehicle

Publication Date: 2022.03.08 HYUNDAI TRANSYS INC

AI summary

A pumping device for a seat of a vehicle is proposed. In the pumping device, a spring providing a restoring force to a lever bracket is directly connected to a housing without a separate component, so that the manufacturing cost is reduced and a layout size is reduced in response to removal of the component supporting the spring.