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. 28, 2002
Filed:
Sep. 17, 1999
Hitoshi Konosu, Nagoya, JP;
Yoji Yamada, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The present invention relates to a device for assisting an operator in carrying heavy articles. The device is provided with a movable body for supporting the heavy article, an actuator for actuating the movable body, and a controller for adjusting the output of the actuator. The controller adjusts the actuator such that a force obtained by subtracting a resultant force of force proportional to acceleration of the heavy article, force proportional to speed, and force proportional to position value from force required for moving the heavy article with a same movement as that performed at that point. Further, coefficients proportional to acceleration, speed, and position value are changed during the series of carrying work. Especially, it is useful that the coefficients be changed according to the task process phases. It makes an operator feel as if he were changing assist device to an appropriate one for each task process phase. The operator is able to work under various environments with a feeling which is convenient for performing his work well.