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:
Jan. 14, 1992
Filed:
Nov. 20, 1990
Akira Takami, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotation transmission device with a torque limiting function comprises a cylindrical housing 10, a first rotation member 20 supported on a first bracket 12 via a one-way clutch bearing 14, a second rotation member 30 integral with the output shaft 33, an annular torsional resilient member 80, and an input shaft 40 rotatably supported on the rotation members 20 and 30. The torque is transmitted from the input shaft to the first rotation member via a torque limiting transmission mechanism which comprises: a first and a second internal gear 21 and 31, a first sun gear 41 supported on the input shaft 40 via a one-way clutch bearing 42, a second sun gear 43 fixed on the input shaft, first and second planetary gears 55 and 65, satellite rings 58 and 68 eccentric to the planetary gears 55, and a guide disk 70 having guide slots 72 slidably engaging with the satellite rings 58 and 68. The first rotation member 20 is driven and rotated by the torque limiting transmission mechanism relative to the second rotation member 30 while the torsional torque of the resilient member 80 is under a predetermined maximum. When the torsional torque of the resilient member 80 reaches the maximum the torque limiting transmission mechanism rotates freely without transmitting torque to the first rotation member 20.