US 11,813,747 B2
Link structure
Yasuhisa Kamikawa, Tokyo (JP); and Yasunori Kawanami, Tokyo (JP)
Assigned to SONY CORPORATION, Tokyo (JP)
Appl. No. 17/250,522
Filed by SONY CORPORATION, Tokyo (JP)
PCT Filed Jul. 29, 2019, PCT No. PCT/JP2019/029633
§ 371(c)(1), (2) Date Jan. 31, 2021,
PCT Pub. No. WO2020/031772, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 2018-149686 (JP), filed on Aug. 8, 2018.
Prior Publication US 2021/0291359 A1, Sep. 23, 2021
Int. Cl. F16H 25/20 (2006.01); B25J 9/10 (2006.01); F15B 15/20 (2006.01); F16H 19/04 (2006.01); F16H 19/06 (2006.01)
CPC B25J 9/106 (2013.01) [B25J 9/102 (2013.01); B25J 9/104 (2013.01); F15B 15/20 (2013.01); F16H 19/04 (2013.01); F16H 19/0618 (2013.01); F16H 25/20 (2013.01); F16H 2025/204 (2013.01); F16H 2025/2031 (2013.01); F16H 2025/2081 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A link structure, comprising:
a first link;
a target member, wherein
the target member is in an interior of the first link, and
the target member is movable in the interior of the first link;
a movement mechanism fixed to the first link, wherein
the movement mechanism comprises a nut, a screw shaft, and a guide part,
the movement mechanism is configured to control movement of the target member,
the movement of the target member is controlled to move in at least one specific movement direction along the first link based on power from a power part,
the movement mechanism in entirety is inside the target member,
the screw shaft extends along the at least one specific movement direction inside the target member,
the screw shaft is inserted into the nut, and
the guide part extends along an entire surface of the screw shaft;
a rotation part fixed to the first link, wherein
the nut rotates around the rotation part inside the target member,
the rotation part serves as a rotation center of the target member to be moved and the movement mechanism of the target member, and
the target member rotates with the nut, inside the link structure; and
an action part attached to the target member, wherein the action part is configured to act on a movement of a second link mounted onto the first link.