Osaka University

Advanced Telecommunications Research Institute International

Mitsubishi Heavy Industries Limited

Yoshihiro Nakata

Hiroshi Ishiguro

Jun Morimoto

Tomoyuki Noda

Ryota Hiura

Katsuhiro Hirata

Satoshi Yagi

Hiroki Nishii

Hironori Ohigashi

Masato Tsuru

Taisei Nishishita

Hiroya Masuoka

Takakatsu Nozawa

A modularized externally-driven joint structure that can be used for general purposes. In one aspect, an externally-driven joint structure includes: a shaft member that extends in an axial direction; and a plurality of rotatable members that are arranged along the axial direction, and are coupled with each other by the shaft member in an axially rotatable manner. Each of the rotatable members includes a pair of face portions that face each other in the axial direction, a side wall portion that is arranged along the outer circumferential edges of the pair of face portions, and at least one coupling portion that is arranged at the face portions or the side wall portion, and is coupled with a link member constituting a link of a robot.

Externally-driven joint structure

A multicopter system according to one aspect of the present invention includes a multicopter configured to fly in a state of holding a package and a mooring device that is installed at a target position of a flight of the multicopter and includes a linear member that extends in a predetermined direction from the target position, the multicopter including a reception portion that has the shape of a recess including an opening open toward one direction and is configured to receive the linear member via the opening.

Multicopter system and method for transferring goods

[Object] To provide a compact, high-output actuator device allowing force control. [Solution] An actuator deviceincludes an electromagnetic coil memberprovided over a prescribed width on an outer circumference of a cylinder, and a movable elementslidable as a piston in the cylinder. The movable elementhas a magnetic member, and is moved relatively by excitation of the electromagnetic coil member. Fluid is supplied to first and second chambersandsuch that when the movable elementis to be moved relatively, the movable elementis driven in the same direction.

Actuator device, humanoid robot and power assist device

A modularized externally-driven joint structure can be used for general purposes. An externally-driven joint structure: includes a shaft member that extends in an axial direction; and a number of rotatable members that are arranged along the axial direction, and are coupled with each other by the shaft member in an axially rotatable manner. Each of the rotatable members includes a pair of face portions that face each other in the axial direction, a side wall portion that is arranged along the outer circumferential edges of the pair of face portions, and at least one coupling portion that is arranged at the face portions or the side wall portion, and is coupled with a link member constituting a link of a robot.

A linear vernier motor includes a stator and a mover. The stator extends in a first direction. The mover extends in the first direction and a pole interval is different from that of the stator. At least one of the stator and the mover includes: a plurality of permanent magnets arranged in the first direction and a plurality of yokes arranged in the first direction. Each of the plurality of yokes is arranged between adjacent permanent magnets. The plurality of permanent magnets is magnetized to the first direction and magnetization orientations of adjacent permanent magnets are opposite to each other.

Linear vernier motor

A linear actuator includes a coil portion and a shaft portion. The coil portion includes a plurality of coils respectively applied with AC currents having different phases from one another. The shaft portion passes through an inside of the plurality of coils. The shaft portion includes: a plurality of permanent magnets and a plurality of intermediate members. The plurality of permanent magnets is arranged along a central axis C such that opposite magnetization directions face to each other in a direction of the central axis C. Each of the plurality of intermediate members is arranged between adjacent two of the plurality of permanent magnets. A saturation magnetic flux density of each of the plurality of intermediate members is higher than a saturation magnetic flux density of each of the plurality of permanent magnets.

Growing community of inventors

Suita, Japan

Yoshihiro Nakata