An electrodynamic apparatus includes a first arm extending in a first direction, a second arm supported by the first arm, a linear actuator that moves the second arm along the first direction with respect to the first arm, a support extending in a second direction that is different from the first direction and supporting the first arm, and a rotating mechanism that rotates the support about an axis of rotation parallel to the second direction. The first arm includes a power transmission antenna. The second arm includes a power reception antenna. The power transmission antenna supplies electric power to the power reception antenna wirelessly. In rotating the support, the linear actuator moves the center of gravity of the second arm to the axis of rotation first, and then the rotating mechanism rotates the support.

The invention provides a wearable hand rehabilitation apparatus equipped on the back of users' hand. The wearable hand rehabilitation device could help the users to do their hand or finger rehabilitation. The wearable hand rehabilitation apparatus includes a thumb mechanism, three finger mechanisms and a pinky finger mechanism. These mechanisms could make the user's fingers bent or straightened. And the wearable hand rehabilitation apparatus could reduce the physical damage of the users during the period of doing rehabilitation with the present invention.

A piezoelectric drive device includes a piezoelectric actuator which includes a vibration portion that vibrates and a protruding portion that protrudes from the vibration portion, a driven member, an optical scale, a sensor which receives transmitted light or reflected light from the optical scale and outputs a signal in accordance with intensity of the received light, in which a facing area of the optical scale and the sensor is disposed to be deviated to one side in a direction in which the optical scale and the sensor are aligned with respect to a contact portion between the protruding portion and the driven member.

Aspects described herein include an end effector capable of prehending items using impactive and astrictive forces. The end effector includes an interface system having a deformable mounting plate and a pliable body member attached to the mounting plate. The end effector further includes a linkage system between a plurality of actuators and the interface system. The linkage system connects to lateral portions of the mounting plate.

A gripper includes fingers, which are configured to interact with an object. A first mount supports a first finger. A second mount supports a second finger. A support plate supports these mounts. A cam plate is configured to interact with the first mount and the second mount to provide a first arrangement and a second arrangement. When the first and second mounts are in the first arrangement, the gripper is provided with a first distance between the first finger and the second finger when the gripper is in an open position to receive and/or release the object. When the first and second mounts are in the second arrangement, the gripper is provided with a second distance between the first finger and the second finger when the gripper is in the open position. The second distance is greater than the first distance.

In a motor including an armature, and a field system having a main pole magnetized in first directions in which a distance from the armature is defined and a sub-pole adjacent to the main pole in second directions orthogonal to the first directions and magnetized in the second directions and forming a Halbach array, a first dimension of the main pole in the second directions, a second dimension of the main pole and the sub-pole in the first directions, and a third dimension as a sum of the dimensions of the main pole and the sub-pole in the second directions are determined according to a flux content generated in a surface of the field system at the armature side.

A pizza transfer tool incorporating a vertical shaft; an upper member mounted to the vertical shaft for upward and downward motions; a lower member mounted to the vertical shaft for upward and downward motions; a circumferential array of upper pivot arms having proximal ends pivotally mounted to the upper member; a circumferential array of lower pivot arms having proximal ends pivotally mounted to the lower member; a circumferential array of linking members having inner ends and outer ends, wherein each outer end is pivotally mounted to a distal end of one of the upper pivot arms, and wherein each inner end is pivotally mounted to a distal end of one of the lower pivot arms; and a circumferential array of spatulas attached to the linking member's inner ends.

An autonomous construction robotic system is disclosed which includes a processing unit, a robotic arm, the robotic arm is adapted to be coupled to a central attachment arm and thereby position the central attachment arm according to a plurality of degrees of freedom, a panel handling and fastening system, including a panel handling assembly coupled to the central attachment arm and adapted to pick and place a construction panel onto a framed structure within a construction zone, and a vision system adapted to provide visual information to the processing unit associated with the framed structure, wherein the processing unit processes the visual information to automatically determine placement position of the construction panel on the framed structure.

A non-Cartesian coordinate positioning machine that includes an extendable leg assembly for positioning a component such as a measurement probe within a working volume of the machine. The extendable leg assembly includes a first member and a second member which move relative to one another when the extendable leg assembly changes length. The first member including an axial arrangement of magnets forming part of a linear motor for extending and retracting the extendable leg assembly, and at least one resilient member for absorbing at least some of any axial thermal expansion or contraction of the magnets in use.

A robotic system, such as a continuum robot, that includes at least one hollow tube backbone and an equilibrium modulation wire at least partially positioned within the backbone. The robotic system is configured to adjust a position of an end effector by bending the hollow tube and to further adjust the position of the robotic device by adjusting a linear insertion position of the equilibrium modulation wire inside the hollow tube, wherein adjusting the linear insertion position of the equilibrium modulation wire changes a flexural rigidity of the hollow tube resulting in a change in the resulting bending angle of the robotic device.