Air Cleaner Box Element Holder Pivoting Support

Solution Overview

Problem

Conventional air cleaner box designs face challenges in supporting the air cleaner element effectively while maintaining ease of attachment and detachment, as extending rib sections can complicate these operations and reduce support rigidity.

Innovation Solution

The air cleaner box incorporates an element holder with a U-shape in cross section, supported by both the case body and case cover, which pivots for easy attachment and detachment, and features a lock flange for secure positioning, with rib sections formed in a cross shape to reduce extension length and enhance stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If rib sections are extended to support the air cleaner element, then support rigidity is improved, but the attaching and detaching operation becomes more difficult

Engineering Contradiction:
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The support function is segmented into two parts: the case body provides structural support, while a separate element holder provides attachment support. This segmentation allows the rib sections to remain short (easy operation) while the element holder ensures adequate support rigidity through its engagement with the air cleaner element.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The element holder acts as an intermediary between the air cleaner element and the case body. It transfers the support function from direct rib section engagement to a dedicated component that can pivot and engage easily, while still providing rigid support when in position.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If rib sections are extended to support the air cleaner element, then support rigidity is improved, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The support structure is divided into the case body with short rib sections and a separate element holder. This segmentation reduces the extension length of rib sections (simplifying the case structure) while the element holder provides the necessary support rigidity through its dedicated engagement features.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The element holder serves multiple functions: it supports the air cleaner element, provides attachment engagement, and transfers loads to the case body. This multi-functionality eliminates the need for extended rib sections, reducing overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Strength

If the air cleaner element is directly supported by rib sections, then support rigidity is improved, but the attaching and detaching operation becomes more difficult

Engineering Contradiction:
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The element holder is designed to pivot dynamically during attachment and detachment operations. This dynamic movement allows easy engagement and disengagement of the air cleaner element, while the holder maintains rigid support when in its final position through engagement with the case body and air cleaner element.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS7604677B2Structure of air cleaner box
Publication Date: 2009.10.20
  • US7604677B2 patent drawing
  • US7604677B2 patent drawing
  • US7604677B2 patent drawing

AI summary

An air cleaner box structured to facilitate the attaching and detaching operation of an air cleaner element While enhancing the support rigidity thereof. The air cleaner box includes a casing having a case body and the openable and closable case cover. The air cleaner element and the element holder to support the air cleaner element are contained in the casing. The element holder has an extended U-shape in cross section, and has end sections that are supported by the case body and the case cover respectively. The element holder pivots on the bottom face rear ends of the holder lower protrusions in an inclinable manner.