Two-Component Vacuum Cleaner Bumper Strip for Precise Housing Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vacuum cleaner housings face challenges in simplifying the connection of housing parts while preventing misalignment due to manufacturing tolerances, requiring complex fastening methods despite the use of elastic bumper strips.
Innovation Solution
A two-component plastic bumper strip is designed with an H-shaped hard component and a soft coating, featuring joining elements that allow for positive locking, snap-in connections, adhesive bonds, or welds, and additional functional elements like a parking receptacle and screw-on tube for simplified assembly and enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a one-component elastic bumper strip is used to cover joints, then shock absorption is improved, but manufacturing precision deteriorates due to misalignment between housing parts
Solution Approach 1:
The bumper strip is divided into two functional components: a hard H-shaped mounting component that provides dimensional stability and precise positioning, and a soft coating layer that provides shock absorption. This segmentation allows each component to specialize in its primary function without compromising the other.
Solution Approach 2:
The bumper strip combines two materials with different properties: a hard plastic (e.g., polypropylene) for the H-shaped mounting component that resists deformation and ensures precise alignment, and a soft elastic material (e.g., thermoplastic elastomer) for the coating that absorbs shocks. This composite structure resolves the contradiction between shock absorption and alignment precision.
2Manufacturing precision
If complex fastening methods are used at joints, then manufacturing precision is improved by preventing misalignment, but device complexity increases
Solution Approach 1:
The mounting function and the protective function are merged into a single integrated bumper strip component. The H-shaped hard component provides both the mounting structure and the alignment features, eliminating the need for separate fastening elements and reducing overall device complexity.
Solution Approach 2:
The H-shaped bumper strip structure serves multiple functions simultaneously: it provides mounting attachment points, defines alignment geometry through its rigid structure, and integrates the protective coating. This self-sufficient design eliminates the need for additional complex fastening systems.
3Stability of the object's composition
If a two-component H-shaped bumper strip with soft coating is used, then dimensional stability is improved, but manufacturing complexity increases
Solution Approach 1:
The soft coating is applied as a preliminary step before final assembly, allowing the hard H-shaped component to be manufactured with precise dimensions first, ensuring dimensional stability, and then the protective coating is added to provide shock absorption without interfering with the precision mounting features.
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 solution provides effective shock absorption and dimensional stability, simplifying the manufacturing and assembly process by allowing for easier alignment and integration of housing parts, while also serving as a protective feature for the vacuum cleaner and furniture.
Implementation Method 1
the shock band is designed as a two-component plastic component and includes an H-shaped hard component, on the outwardly directed leg of which a coating in the form of a soft component is arranged. On the one hand, this ensures good shock absorption
Data Source
Figure 1~2
Figure 3~6
AI summary
The vacuum cleaner housing (2) has a lower housing section, an upper housing section and a liner tape (10) rotating the housing in certain areas. The liner tape is arranged in the area of a joint between the lower housing section and the upper housing section. The liner tape is formed as a two-component plastic component and has an H-shaped hard component.