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. 16, 2017
Filed:
Jun. 28, 2016
Rt. Works Co., Ltd., Osaka-shi, Osaka, JP;
Takahiro Katayama, Osaka, JP;
Atsushi Koujina, Osaka, JP;
RT. WORKS CO., LTD., Osaka-Shi, Osaka, JP;
Abstract
A hand cart capable of satisfying walking stabilization and facilitation of carrying articles according to a movement mode includes a control section operable, based on a rotational angle of a wheel section, to calculate a movement distance and a traveling direction, and, according to the traveling direction and the inclination angle, to execute an assist control of causing a wheel driving section to generate a driving torque for assist force or braking torque for braking force, wherein the control section is operable, based on a movement distance and the inclination angle, to calculate an angular change rate of the inclination angle, and, when a contact with a grip member is detected, and the angular change rate is equal to or less than a given threshold, to execute the assist control.