Retractable Side Brush Assembly for Wider Robot Cleaner Coverage
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Solution Overview
Problem
Automatic cleaners face limitations in effectively cleaning regions outside the footprint of the suction port due to the length of the side brush, which can lead to damage and increased storage inconvenience.
Innovation Solution
A side brush assembly with a movable member and dual driving devices allows the side brush to protrude and retract, increasing the cleaning area while minimizing storage space and preventing damage, by using a first driving device to move the movable member and a second driving device to rotate the brush, with a power transmission system and detection mechanism to control the rotation range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the side brush is increased in length to expand cleaning area, then the cleaning area is increased, but the side brush may be damaged while cleaning or being stored and the region occupied by the automatic cleaner is increased
Solution Approach 1:
The side brush assembly is designed to be movable relative to the casing, transitioning between a working position where the brush extends outward for cleaning and a stored position where it retracts. This dynamic configuration allows the cleaning area to be expanded during operation while minimizing the occupied space and preventing damage during storage, directly resolving the technical contradiction.
2Area of stationary object
If the side brush is increased in length to expand cleaning area, then the cleaning area is increased, but the region occupied by the automatic cleaner is increased making storage inconvenient
Solution Approach 1:
The side brush assembly transitions between extended and retracted positions, allowing the cleaner to occupy minimal space during storage while providing maximum cleaning area during operation. This dynamic design directly addresses the contradiction between expanding cleaning area and minimizing occupied volume.
3Area of stationary object
If the side brush is increased in length to expand cleaning area, then the cleaning area is increased, but the side brush may be damaged while cleaning or being stored
Solution Approach 1:
By making the side brush assembly movable between extended and retracted positions, the system allows the brush to be extended only when needed for cleaning, minimizing exposure to damaging factors during storage and transport. This dynamic approach resolves the contradiction between expanding cleaning area and reducing damage risk.
Data Source
AI summary
An automatic cleaner includes a casing having a suction port, a suction device disposed in the casing to suction foreign substances through the suction port, a moving device that moves the casing, and a side brush assembly movably installed on the casing. The side brush assembly includes a movable member movably disposed on the casing, a first driving device that generates power for moving the movable member, a brush rotatably mounted on the movable member, and a second driving device that generates power for rotating the brush.