A lightweight 4-degree-of-freedom leg mechanism of a bionic quadruped robot, which includes a hip-joint lateral-swing assembly, a thigh longitudinal-swing assembly and a shank longitudinal-swing assembly. The hip-joint lateral-swing assembly includes a hip-joint swing cylinder and an electro-hydraulic actuator. One end of the electro-hydraulic actuator and one end of the thigh longitudinal-swing assembly are respectively connected to the hip-joint swing cylinder via a connecting block. The other end of the electro-hydraulic actuator is hinged to a side of the thigh longitudinal-swing assembly. The other end of the thigh longitudinal-swing assembly is hinged to the shank longitudinal-swing assembly.

A gear mechanism including: a pair of housings that are combined in a positioned state by mating a cylindrical inner surface and a cylindrical outer surface centered on a first axis with each other; two first gears that are attached to one housing so as to be rotatable about the first axis and a second axis parallel to the first axis; and two second gears that are rotatably attached to the other housing, and that are respectively engaged with the two first gears in a state in which the pair of housings are combined. The first gear that is attached so as to be rotatable about the second axis and the second gear that is engaged with the first gear are arranged at positions where an inter-axial distance therebetween is changed by means of a relative rotation of the housings about the first axis.

The present invention relates to a joint mechanism (100), a method for controlling the joint mechanism (100), a multi-arm device (200) including the joint mechanism (100), and a robot. The joint mechanism (100) comprises: a base (4) having a pivot shaft (41); a swinging arm (1) having a first end (11) mounted on the pivot shall (41); a first driving member (2) and a second driving member (3) mounted on the pivot shall (41) for interacting with the swinging arm (1) through magnetorheological fluid; and a first electromagnetic component (22) and a second electromagnetic component (32), configured to change phase state of the magnetorheological fluid. The first driving member (2) and the second driving member (3) can selectively drive tire swinging arm (1) to rotate along a first direction or a second direction.

A passive joint device for supporting a rotation-side member rotatably about a horizontal axis in a vertical direction with respect to a fixed-side member, includes: a cylindrical cam member having a pair of cam surfaces symmetrically arranged about a horizontal axis, a pedestal slidably disposed along the horizontal axis fixed to the rotation-side member, the pedestal having a pair of cam followers that contact with each of the pair of cam surfaces, a spring disposed inside the horizontal axis and biasing the pedestal toward the fixed-side member along the horizontal axis, wherein the spring force causes the pair of cam followers to come into contact with the pair of cam surfaces, and provide upward rotational force to the rotation-side member to reduce the downward rotational force of the rotation-side member.

Systems, apparatus, and methods to remove vehicle sensor debris are disclosed. A disclosed cleaning assembly for a vehicle includes a track coupled to the vehicle. The cleaning assembly also includes an arm adjustably coupled to the track and having a nozzle positioned on the arm. The arm is moveable, via the track, near an exterior surface of the vehicle that is associated with a vehicle sensor. The cleaning assembly also includes a first motor operatively coupled to the arm configured to move the arm along the track relative to debris positioned on the exterior surface. The cleaning assembly also includes a pump fluidly coupled to the nozzle configured to expel the fluid from the nozzle to remove the debris.

A housing includes: a housing body that contains at least one electromechanical or mechanical component, the housing body including a front plate and a pair of side plates, the plates being connected to a bottom plate in such a manner that the housing body includes an opening; a cover for closing the opening; and a gasket interposed between an edge portion of the housing body and an edge portion of the cover to tightly close an inside of the housing body. An edge portion of each of the side plates has a curved shape.

The present disclosure is directed to a compact wrist rotator and flexor mechanism for use with a prosthetic hand. The wrist rotator and flexor uses a set of motors to provide a driven mechanism having two degrees of freedom, a wrist rotation and a wrist flexion. The rotator uses a motor with an inverted shaft gearbox combined with a worm gear and a face gear transmission to generate continuous and non-backdrivable rotation. The rotator is integrated into a flexor that uses a lead screw acting as a linear actuator to provide strong non-backdrivable flexion and extension. Due to the arrangement of the drives, the resulting wrist rotator and flexor mechanism has a low and compact profile.

An articulated robot includes: different types of joint units, each including a stationary body, a stationary body-side mechanical connector for connection to another unit, a displaceable body coupled to the stationary body by a coupler, a displaceable body-side mechanical connector for connection to another unit, and an actuator to displace the displaceable body relative to the stationary body; and a control unit including a controller to control the actuator and a control unit mechanical connector for connection to another unit, wherein displacement undergone by the displaceable body-side mechanical connector relative to the stationary body-side mechanical connector differs depending on the type of the joint unit, the stationary body-side mechanical connector includes a first connection structure, the displaceable body-side mechanical connector and the control unit mechanical connector each include a second connection structure, and the first and the second connection structure are connectable to each other.

Disclosed herein are various robotic surgical devices and systems that include first and second elongate bodies, first and second driveshafts disposed through the second elongate body, and an in-line shoulder joint with a robotic arm coupled thereto. In certain implementations, the in-line shoulder joint has a differential yoke and a dual shaft disposed within the yoke lumen.

A rotary joint according to an aspect of the present disclosure includes a first microstrip line, a second microstrip line, a transmitting circuit connected to one end of the first microstrip line and configured to output a communication signal, a transmitting-side terminator connected to the other end of the first microstrip line, a receiving-side terminator connected to one end of the second microstrip line, and a receiving circuit connected to the other end of the second microstrip line and configured to receive the communication signal, in which the first and second microstrip lines and are set along at least a part of a circular ring having a circumferential length equal to an integral multiple of a wavelength of a traveling wave with which the communication signal propagates through the microstrip lines.