Washer Tub Back and Rear Gasket Layout for Vibration Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional drum type laundry machines face limitations in increasing washing capacity due to structural constraints related to vibration damping and installation size, making it difficult to enlarge the tub size for enhanced washing efficiency.
Innovation Solution
A drum type laundry machine with a tub back arranged in front of a bearing housing and a rear gasket connected to the tub back, supported by a suspension unit that reduces vibration transmission and allows for flexible or rigid support, enabling the tub to be enlarged within limited installation spaces by adjusting the distance between the tub and the drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tub size is enlarged to increase washing capacity, then the washing efficiency is improved, but the vibration transmission to the cabinet is intensified
Solution Approach 1:
The patent introduces a rear gasket as an intermediary element positioned between the tub and the bearing housing. This gasket acts as a mediator that absorbs and isolates vibration, allowing the tub to be enlarged for increased washing capacity while preventing the intensification of vibration transmission to the cabinet that would otherwise occur with a larger tub size.
Solution Approach 2:
The patent extracts the vibration damping function from the traditional spring-damper system and relocates it to the rear gasket positioned at the tub-bearing housing interface. By separating the vibration isolation function from the support structure and placing it at the critical interface, the design allows tub enlargement without proportionally increasing vibration transmission to the cabinet.
2Productivity
If the tub size is increased to improve washing efficiency, then the washing capacity is enhanced, but the installation space requirements are exceeded
Solution Approach 1:
The patent utilizes the radial dimension by positioning the rear gasket at the interface between the tub and bearing housing. This allows the tub to be enlarged in volume for improved washing efficiency while the gasket's placement in the radial direction maintains compact overall dimensions, enabling the machine to fit within limited installation spaces despite the larger tub capacity.
3Object-generated harmful factors
If a spring and damper are provided between the tub and cabinet to prevent vibration transmission, then the vibration isolation is improved, but the structural complexity increases
Solution Approach 1:
The patent merges the vibration isolation function with the existing structural components by integrating the rear gasket into the interface between the tub and bearing housing. Instead of adding a separate spring-damper system between the tub and cabinet, the vibration damping capability is combined with the structural connection elements, reducing overall structural complexity while maintaining effective vibration isolation.
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 effectively reduces vibration transmission to the tub, allowing for increased tub and drum size, enhancing washing efficiency and capacity while maintaining stability and preventing wash water leakage.
Implementation Method 1
a suspension unit configured to support vibration of the drum suspendingly
Implementation Method 2
a spring and a damper are provided essentially between the tub and the cabinet to prevent the vibration transmitted to the tub from transmitted to the cabinet
Data Source
AI summary
A laundry machine is provided that includes a tub to receive wash water, a drum rotatably disposed in the tub, a shaft connected to the drum, a bearing housing to support the shaft, a tub back including a rim that extends in a front to rear direction and coupled to the bearing housing at a front thereof, a rear gasket coupled to the rim of the tub back, and a suspension configured to reduce vibration of the drum. The rear gasket is connected between the tub back and the tub rear.