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:
Jun. 09, 1992
Filed:
Mar. 29, 1991
Shinji Naruoka, Kariya, JP;
Osamu Toyama, Kariya, JP;
Takashi Kawasaki, Nagoya, JP;
Hisanori Nakamura, Toyota, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An articulated robot having a swivel base supported on a support base for swivel movement about a vertical axis, a first arm pivoted on the swivel base for swing movement about a first swing axis perpendicular to the vertical axis and a second arm pivoted on the forward end of the first arm for swing movement about a second swing axis parallel to the first swing axis, wherein a servomotor for moving the second arm is mounted on the swivel base. The robot is provided with a gear train transmitting the rotation of the servomotor to the second arm, and the gear train is composed of a drive gear rotated by the servomotor to be rotated about the first swing axis, a driven gear fixed to the second arm for rotational movement about the second swing axis together with the second arm, and three idler gears disposed between the drive gear and driven gear for transmitting the rotation of the drive gear to the driven gear. The robot is also provided with a backlash eliminating mechanism for eliminating backlashes between those gears.