US 12,263,101 B2
Joint device
Hiromi Ono, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Appl. No. 17/598,870
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
PCT Filed Mar. 27, 2020, PCT No. PCT/JP2020/014002
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/203762, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-067099 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0168118 A1, Jun. 2, 2022
Int. Cl. A61F 2/64 (2006.01); A61B 5/00 (2006.01); A61F 2/70 (2006.01); A61F 2/60 (2006.01); A61F 2/68 (2006.01)
CPC A61F 2/64 (2013.01) [A61B 5/4851 (2013.01); A61F 2/70 (2013.01); A61F 2002/607 (2013.01); A61F 2002/6845 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A joint device comprising
a linking unit that links a first member with a second member such that the first and second members are movable relative to each other; and
an extension/contraction device that is connected between the first member and the second member in a manner allowing power transmission, and is capable of varying an angle formed by the first member and the second member around the linking unit by extending and contracting,
wherein the extension/contraction device includes a rotary unit that is configured to generate a rotational power, and a conversion unit that is connected to the rotary unit in a manner allowing power transmission and is configured to convert the rotational power generated by the rotary unit into translational motion in an extension/contraction direction, and includes, between the rotary unit and the conversion unit, a connection/disconnection unit that is capable of connecting and disconnecting power transmission from the rotary unit to the conversion unit, and
wherein the connection/disconnection unit includes a first connection/disconnection member coupled to a side of the rotary unit and a second connection/disconnection member coupled to a side of the conversion unit, and further includes a first urging part that is configured to contract in an axial direction between the first connection/disconnection member and the second connection/disconnection member, and apply an urging force in a direction in which the first and second connection/disconnection members are constantly spaced apart from each other.