首页|Researchers Submit Patent Application, 'Gap Detection Device And Gap Detection Method For Robot Joint', for Approval (USPTO 20240051131)
Researchers Submit Patent Application, 'Gap Detection Device And Gap Detection Method For Robot Joint', for Approval (USPTO 20240051131)
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From Washington, D.C., NewsRx journalists report that a patent application by the inventors ABE, Kenichiro (Yamanashi, JP); MATSUI, Hideo (Yamanashi, JP); NAGAYAMA, Tomoaki (Yamanashi, JP); NAKAGAWA, Hiroshi (Yamanashi, JP); OHNO, Masumi (Yamanashi, JP); TAKEDA, Yukio (Tokyo, JP), filed on January 12, 2022, was made available online on February 15, 2024. No assignee for this patent application has been made. News editors obtained the following quote from the background information supplied by the inventors: “As an example of a robot having a link mechanism, a parallel link robot having a delta-type parallel link mechanism for positioning a movable part having an end effector in three-dimensions is well known. The delta-type parallel link robot has a base part, a movable part, and a drive link and a passive link for connecting the movable part to the base part. In many cases, three pairs of drive link and passive link are provided, and the movable part can move with three degrees-of-freedom (X, Y, Z) by individually controlling the motion of each pair. “Generally, the passive link and the drive link, and the passive link and the movable part are connected by ball joints having three degrees-of-freedom, and the ball joint can be classified into a separate type and an integrated type. As the prior art for detecting disconnection at the separate type ball joint, a parallel link robot having a sensor is well known, wherein the sensor detects inclination of an end plate which is a final output of the parallel link robot, and disconnection between links is detected at at least one of a plurality of connection points of the links, based on an output value of the sensor (e.g., see Patent Literature 1). “Further, a detection device is well known wherein an internal passage is formed so as to open on a surface of a spherical head of a ball joint, and whether or not disconnection of the ball joint occurs is determined based on a detection value of the pressure in the internal passage (e.g., see Patent Literature 2).
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