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:
Jul. 18, 2006
Filed:
Oct. 03, 2003
Hiroshi Kameda, Nagano-ken, JP;
Kiyoto Kobayashi, Nagano-ken, JP;
Junji Koyama, Nagano-ken, JP;
Teizo Morimoto, Nagano-ken, JP;
Masakatsu Sasahara, Nagano-ken, JP;
Hiroshi Kameda, Nagano-ken, JP;
Kiyoto Kobayashi, Nagano-ken, JP;
Junji Koyama, Nagano-ken, JP;
Teizo Morimoto, Nagano-ken, JP;
Masakatsu Sasahara, Nagano-ken, JP;
Harmonic Drive Systems Inc., Tokyo, JP;
Abstract
An articulated finger unit has a two-jointed structure comprising a joint portion on a finger base side, a finger base portion, a joint portion on a fingertip side, and a fingertip portion; the joint portion on the finger base side has a drive-side bevel gear fixed to a rotational output shaft of an actuator, a driven-side bevel gear coaxially fixed to a joint portion that is perpendicular to the rotational output shaft, and a connecting member wherein an annular boss is fixed to the driven-side bevel gear and wherein a tip portion extends in a fork shape; and a cover on the finger base side is connected to the connecting member. A rotation of the rotational output shaft is converted to rotational movement of the joint shaft by way of a pair of bevel gears, and the connecting member fixed to the joint shaft turns right and left at an angle of 90° or more about the joint shaft. The finger unit suitable for use in a robot hand that moves at high speed and with precision can be realized.