Vacuum Cleaner Accessory Cover Pocket to Prevent Spring Jamming
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Solution Overview
Problem
Existing vacuum cleaner housings with pivotable accessory compartments and torsion springs are prone to jamming and contamination due to exposed brackets, which also affect the device's appearance and stability.
Innovation Solution
The torsion spring component is housed in a receiving pocket within the cover, stabilizing the cover and preventing jamming and contamination, while improving the vacuum cleaner's appearance by concealing the bracket.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bracket is exposed under the lid to transmit spring force, then the cover can be opened and closed, but the risk of jamming and contamination increases
Solution Approach 1:
The patent introduces a receiving pocket as an intermediary structure that houses the bracket. The bracket remains functional for transmitting spring force but is medially contained within the pocket, preventing direct exposure to contaminants and reducing jamming risk while maintaining operational ease
2Force
If the bracket is exposed under the lid, then the spring force can be transmitted to the cover, but contamination risk increases
Solution Approach 1:
The receiving pocket serves as a protective intermediary that allows spring force transmission while shielding the bracket from contaminants. The pocket structure creates a boundary between the functional mechanical interface and the external environment
Solution Approach 2:
The bracket is nested within the receiving pocket, creating a hierarchical structure where the functional component is contained within a protective housing. This nesting arrangement maintains force transmission capability while preventing contamination
3Ease of manufacture
If the bracket is exposed under the lid, then the mechanism functions, but the visual appearance deteriorates
Solution Approach 1:
The receiving pocket acts as a cosmetic intermediary that conceals the bracket while allowing it to function. The pocket structure provides a clean external surface that hides the mechanical complexity from view
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 effectively prevents jamming and contamination, enhances the visual appeal, and stabilizes the cover, addressing the issues of exposed spring brackets in prior art designs.
Implementation Method 1
two torsion springs are arranged in the pivot axis on the upper part of the vacuum cleaner housing, the force of which opens the lid
Data Source
Figure 1~2
Figure 3~4
AI summary
The housing has an upper part (5) equipped with a fitting case (6), which is closed by a cover (7). The cover is pivotably supported for opening or closing against force of torsion springs. A component of the torsion springs is arranged in a retaining pocket (9), which is arranged at the cover. The component acts on the cover, and the torsion springs are connected by a bracket or the component acting on the cover. A thrust bearing acting on the torsion springs is formed as a slot in a pivoting axle at the upper part of the housing.