US 12,403,617 B2
Joint mechanism and multi-joint deviced
Katsutsugu Fukamachi, Kanagawa (JP); Keiji Togawa, Tokyo (JP); and Hiroshi Osawa, Kanagawa (JP)
Assigned to Sony Interactive Entertainment Inc., Tokyo (JP)
Appl. No. 18/550,168
Filed by Sony Interactive Entertainment Inc., Tokyo (JP)
PCT Filed Mar. 17, 2022, PCT No. PCT/JP2022/012415
§ 371(c)(1), (2) Date Sep. 12, 2023,
PCT Pub. No. WO2022/209984, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 2021-057986 (JP), filed on Mar. 30, 2021.
Prior Publication US 2024/0066722 A1, Feb. 29, 2024
Int. Cl. B25J 17/00 (2006.01); B25J 17/02 (2006.01); F16H 1/14 (2006.01)
CPC B25J 17/0258 (2013.01) [F16H 1/14 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A joint mechanism including a base part and a rotary part that rotates relatively to the base part, the joint mechanism comprising:
a regulated part that is disposed on an inner circumferential surface of the rotary part and rotates together with the rotary part, wherein the rotary part includes a first bevel gear that rotates about a first axis direction;
a regulating part that is disposed on an extension of a rotation locus of the regulated part, and has a function of regulating rotation of the regulated part relative to the base part, within a first movable range, wherein the base part includes a second bevel gear that is engaged with the first bevel gear and that rotates about a second axis direction intersecting with the first axis direction, and a third bevel gear that is engaged with the first bevel gear, is disposed so as to face the second bevel gear with respect to an extension direction of the second axis direction, and rotates about the second axis direction;
a second regulated part that rotates about the second axis direction relatively to the base part;
a second regulating part that is disposed on an extension of a rotation locus of the second regulated part; and
a movable range defining member that is mounted on either the base part or the rotary part, and defines, as a movable range of the regulated part, a second movable range that is narrower than the first movable range.