Vacuum Cleaner Dust Bin Dual-Latch Assembly for Secure Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vacuum cleaners with removable dust bins lack a secure and efficient mechanism for both installation and removal, often requiring complex user-operated latches that can be cumbersome and prone to misalignment.
Innovation Solution
A vacuum cleaner design featuring a dual-latch system with a spring-actuated second latch that moves between locked and unlocked positions, allowing for secure attachment and easy removal of the dust bin, where the first latch is locked during installation and unlocked during removal, enabling smooth transverse and parallel movement along the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single latch mechanism is used for dust bin attachment, then the device complexity is reduced, but the reliability of secure attachment deteriorates
Solution Approach 1:
The latching mechanism is divided into two independent latches (first latch and second latch) that operate separately but work together to secure the dust bin. Each latch provides a distinct attachment point, so the failure or misalignment of one does not compromise the overall security of the dust bin attachment.
Solution Approach 2:
The spring-loaded second latch provides a cushioning effect by allowing controlled movement during installation. The spring absorbs misalignment tolerances and guides the dust bin into proper positioning before the latch engages in the locked position, preventing damage from forced alignment.
2Reliability
If a complex user-operated latch is used for dust bin removal, then the reliability of secure attachment is improved, but the ease of operation deteriorates
Solution Approach 1:
The second latch is designed to be spring-actuated and automatically moves between locked and unlocked positions based on the dust bin installation state. During installation, the dust bin movement automatically triggers the latch transition; during removal, the system dynamically responds to the dust bin's movement along the housing.
Solution Approach 2:
The latching system is self-actuating during installation - the dust bin's own movement during insertion automatically triggers the spring-loaded second latch to move from locked to unlocked position and then back to locked position, eliminating the need for separate user operation.
3Ease of operation
If the second latch is spring-actuated to move automatically, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The spring mechanism is integrated into the second latch structure itself, combining the actuation mechanism and the latching function into a single component. This reduces overall system complexity compared to having separate actuation and latching mechanisms while still providing automatic operation.
4Manufacturing precision
If guides are added to move the latch during installation, then the manufacturing precision requirements are reduced, but the device complexity increases
Solution Approach 1:
The guide acts as an intermediary element between the dust bin and the second latch during installation. It provides a controlled path that guides the latch movement and ensures proper alignment without requiring high manufacturing precision on the mating surfaces of the dust bin and housing.
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 design ensures secure attachment and easy removal of the dust bin, enhancing user convenience and reducing the complexity of latching mechanisms, while maintaining dust bin security during operation.
Implementation Method 1
a spring pressing the second latch to the locked position
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A vacuum cleaner includes a housing having a dust inlet and a first latch. The first latch is moveable between a locked position and an unlocked position. The vacuum cleaner also includes a second latch moveable between a locked position and an unlocked position, and a spring pressing the second latch to the locked position. The vacuum cleaner also includes a dust bin securable on the housing with the first latch and the second latch. When the dust bin is being installed onto the housing, the second latch is moved from the locked position to the unlocked position until the spring presses the second latch back to the locked position. The dust bin is secured on the housing when the dust bin is installed on the housing, the first latch is in the locked position, and the second latch is in the locked position. The dust bin is removable from the housing when the dust bin is installed on the housing, the first latch is in the unlocked position, and the second latch is in the locked position.