The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2021
Filed:
Dec. 14, 2016
Toshiba Lifestyle Products & Services Corporation, Kawasaki, JP;
Toshihiro Kayama, Seto, JP;
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION, Kawasaki, JP;
Abstract
Provided herein a vacuum cleaner capable of effectively escaping from a situation where driving wheels are in an idling state. The vacuum cleaner includes a main casing, driving wheels, a control unit and an idling detection part. The driving wheels enable the main casing to travel. The control unit controls the driving of the driving wheels to make the main casing autonomously travel. The idling detection part detects that the driving wheels are in an idling state. In the case where the idling detection part detects that the driving wheels are in an idling state, the control unit controls the operation of the driving wheels so as to, after the operation to make the main casing retreat by a certain distance, repeat consecutively for a plurality of times the operation to make the main casing turn in a specified one direction and advance by a specified distance.