Device for supporting arm driving shafts of industrial robot
CA 2000304 C · Owner: Kabushiki Kaisha Yaskawa Denki Seisakusho · Inventors: Iwanaga, Toshiaki; Tounai, Syuichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a device for supporting arm driving shafts articulating portions of adjacently provided first and second arms constituting a parallel link type robot are rotatably supported, via separately provided bearings from supporting posts projecting from the robot structure, and the first arm and second arm are also coupled through another bearing. All of these bearings are of a type in which an axial force applied to either one of inner and outer races of the bearing beforehand presses rolling members of the bearing toward the other of the races, while a pressing plate is provided for applying the axial force to one of the bearings. The application of the axial force shifts the supporting frame …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 6, 1989 and granted September 3, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.