Abstract: A sock that is less likely to slip off and provide an excellent wearing feeling while ensuring a state of the sock being hard to see. This sock provides a foot connecting portion 14 between a toe portion 11 and a heel portion 12. The sock also provides an ankle connecting portion 15 between the heel portion 12 and a body portion 13. The foot connecting portion 14 and the ankle connecting portion 15 that sandwich the heel portion 12 are knitted as non-cylindrical knitted fabrics having predetermined knitting widths, respectively, to form an opening 16 surrounded by the toe portion 11, the foot connecting portion 14, the heel portion 12, the ankle connecting portion 15, and the body portion 13 to open an area from the ankle to the instep in a worn state. This prevents an instep portion of the sock from protruding from a shoe and becoming visible.

Abstract: A hand section 40 includes a hand base section 40a attached to a link section, a first finger section 40b provided to extend in a direction non-parallel with a direction toward a tip end portion from a base end portion of the hand base section 40a, from the tip end portion of the hand base section 40a, and a camera 40f provided at a side surface of the hand base section 40a, and capable of imaging a sideward of the hand base section 40a.

Abstract: Provided is a fruit and vegetable harvesting device (10) for harvesting a fruit or vegetable (1) connected to a branch (3) via a pedicel (2). The fruit and vegetable harvesting device (10) includes: a harvesting hand (11) including a holding unit (12) having a suction pad (15) for holding the fruit or vegetable (1) and a finger unit (21) that can abut on the pedicel (2); and a robot arm (31) that turns the harvesting hand (11) to cause the finger unit (21) abutting on the pedicel (2) to press the pedicel (2).

Abstract: A second finger 40c of a hand part 40 includes a first link member 40c1 and a second link member 40c2 that are integrally rotatable with respect to a hand base 40a, a spring 40c3, and a second finger side engagement part 40c4. The spring 40c3 biases the second link member 40c2 so that a position of the second link member 40c2 with respect to the first link member 40c1 is maintained. A second finger side engagement part 40c4 is engaged with a hand base side engagement part 40a1 when the second link member 40c2 is moved by a load applied from an object O against a biasing force of the spring 40c3.

Abstract: A hand section 40 includes a hand base section 40a attached to a link section, a first finger section 40b provided to extend in a direction non-parallel with a direction toward a tip end portion from a base end portion of the hand base section 40a, from the tip end portion of the hand base section 40a, and a camera 40f provided at a side surface of the hand base section 40a, and capable of imaging a sideward of the hand base section 40a.

Abstract: A second finger 40c of a hand part 40 includes a first link member 40c1 and a second link member 40c2 that are integrally rotatable with respect to a hand base 40a, a spring 40c3, and a second finger side engagement part 40c4. The spring 40c3 biases the second link member 40c2 so that a position of the second link member 40c2 with respect to the first link member 40c1 is maintained. A second finger side engagement part 40c4 is engaged with a hand base side engagement part 40a1 when the second link member 40c2 is moved by a load applied from an object O against a biasing force of the spring 40c3.

Abstract: A power device 1 has a speed reducer 3 and a spring member 4 provided in a power transmission system between an actuator 2 and a driven element 5, an operation target of the actuator 2 is determined according to a linear combination of values that are obtained by passing through low-pass filters, a deviation ??12 between an estimated value ?1—e of a velocity of an input unit 4a of the spring member 4 and an estimated value ?2—e of a velocity of the driven element 5, and a deviation ??def between a value ?def—s of a deviation between the input unit 4a of the spring member 4 and the driven element 5, and a target value ?def_cmd of the displacement difference corresponding to a target driving force ?ref of the driven element 5.

Abstract: An inverted pendulum type vehicle includes a vehicle body frame; a main wheel including a plurality of rotatable driven rollers arranged to form a ring, and a pair of left and right driving disks supported for rotation on the vehicle body frame. Each of the driving disks includes a plurality of rotatable driving rollers, disposed for contact in a twisted relationship with the driven rollers. The vehicle also includes a pair of left and right driven pulleys provided on outer sides of the driving disks, and a pair of left and right driving units, attached to the vehicle body frame above the main wheel, and including motors having output power shafts to which driving pulleys are attached. Endless transmission members interconnect the driving pulleys and the driven pulleys. The left and right driving units are disposed in an vertically offset relationship from each other.

Abstract: Assembling workability of driving disks to a vehicle body frame, and setting a spacing dimension of left and right driving disks in an axial direction with high accuracy to stabilize a traveling performance of an inverted pendulum type vehicle. The left and right driving disks are assembled to a hollow shaft member in a positioned state in an axial direction to form a subassembly. The hollow shaft member is fixed to a vehicle body frame by a bolt inserted in a central through-hole of the hollow shaft member.

Abstract: Assembling workability of driving disks to a vehicle body frame, and setting a spacing dimension of left and right driving disks in an axial direction with high accuracy to stabilize a traveling performance of an inverted pendulum type vehicle. The left and right driving disks are assembled to a hollow shaft member in a positioned state in an axial direction to form a subassembly. The hollow shaft member is fixed to a vehicle body frame by a bolt inserted in a central through-hole of the hollow shaft member.

Abstract: An inverted pendulum type vehicle includes a vehicle body frame; a main wheel including a plurality of rotatable driven rollers arranged to form a ring, and a pair of left and right driving disks supported for rotation on the vehicle body frame. Each of the driving disks includes a plurality of rotatable driving rollers, disposed for contact in a twisted relationship with the driven rollers. The vehicle also includes a pair of left and right driven pulleys provided on outer sides of the driving disks, and a pair of left and right driving units, attached to the vehicle body frame above the main wheel, and including motors having output power shafts to which driving pulleys are attached. Endless transmission members interconnect the driving pulleys and the driven pulleys. The left and right driving units are disposed in an vertically offset relationship from each other.

Abstract: In a power device 1 having a speed reducer 3 and a spring member 4 having elastic characteristics to a power transmission system between an actuator 2 and a driven element 5, an operation target of the actuator 2 is determined according to a linear coupling value of values that are obtained by passing through low-pass filters, a deviation ??12 between an estimated value ?1_e of a displacement velocity of an input unit 4a of the spring member 4 and an estimated value ?2_e of a displacement velocity of the driven element 5, and a deviation ??def between a measured value ?def_s of a deviation difference between the input unit 4a of the spring member 4 and the driven element 5, and a target value ?def_cmd of the displacement difference corresponding to a target driving force ?ref of the driven element 5.

Abstract: The operating and other procedures of a disk or recording medium application system of the type for which a network is used are simplified. Disks or recording media have auxiliary data recording areas, where different IDs for individual disk, and/or cipher keys and/or decoding keys for ciphers are recorded in advance in a factory. By using the IDs to release the soft ciphers, and using the cipher keys when sending the ciphers, and using the decoding keys when receiving the ciphers, user authorization procedures are simplified.

Abstract: A joint structure of a robot performs a longitudinal swing motion and a lateral swing motion of a hand (8) coupled to an arm link (2). The joint structure includes: a base link (21) as a main body of the arm link (2) having a pair of facing portions (21a); a gimbal link (4) having a longitudinal shaft and (4a) a lateral shaft (4b) not parallel to each other for providing the longitudinal swing motion and lateral swing motion of the coupled body, the longitudinal shaft being supported between the pair of facing portions (21a); a main link (5) with one end thereof coupled to the lateral shaft (4b) of the gimbal link (4) and with the other end thereof coupled to the hand (8); and a sub link (6) with one end thereof coupled to the gimbal link (4) and with the other end thereof coupled to the hand (8), the sub link (6) being provided crosswise with the main link (5) to form a four link mechanism (1) therewith. This ensures a wide movable angle of the joint.

Abstract: In a legged mobile robot (1), each leg (2) has at least a first joint (16) and a second joint (18, 20) located below the first joint in the gravitational direction, and the actuator that drives the second joint (54, 56) is located at least one of a position same as that of the first joint and a position (28) above the first joint in the gravitational direction. With this, it becomes possible to lighten the weight of the ground-contacting ends of the legs and thereby provide a legged mobile robot enabling reduction of the inertial forces occurring in the legs during moving, particularly during high-speed moving.

Abstract: In a legged mobile robot, each hip joint that connects a body with a thigh link comprises a first rotary shaft that provides a degree of freedom to rotate about a yaw axis, a second rotary shaft that provides a degree of freedom to rotate about a roll axis, and a third rotary shaft that provides a degree of freedom to rotate about a pitch axis, and in addition thereto, a fourth rotary shaft that provides a redundant degree of freedom. Owing to this configuration, the amount of body bending and the movable range of the legs can be increased, thereby improving the degree of posture and gait freedom.

Abstract: In a legged mobile robot (1), each leg (2) has at least a first joint (16) and a second joint (18, 20) located below the first joint in the gravitational direction, and the actuator that drives the second joint (54, 56) is located at least one of a position same as that of the first joint and a position (28) above the first joint in the gravitational direction. With this, it becomes possible to lighten the weight of the ground-contacting ends of the legs and thereby provide a legged mobile robot enabling reduction of the inertial forces occurring in the legs during moving, particularly during high-speed moving.

Abstract: An optical disk that includes main information and write-once information recorded on the optical disk. The write-once information is recorded as information unique to the optical disk, and the write-once information stores at least watermark production parameters for producing a watermark.

Abstract: To provide a harmonic drive gearing with high degree of freedom in terms of layout. A harmonic drive gearing 10 includes a circular spline 1?, having outer teeth formed on an outer peripheral surface; an flexible spline 2, positioned at the outside of the circular spline 1?, and having inner teeth, which are engageable with the outer teeth of the circular spline 1?, formed on an inner peripheral surface; and a rotor 16 which is disposed at outside of the flexible spline 2 and serves as a wave generator, wherein the rotor 16 deflects the flexible spline 2 by minor axis portions of the inner peripheral surface of the flexible spline 2 and engages the inner teeth of the flex spline with the outer teeth of the circular spline 1? and thereby the engagement position between the inner teeth and the outer teeth is adapted to move in a circumferential direction.

Abstract: A landing shock absorbing device 18 disposed in a foot mechanism 6 of a leg of a robot, wherein an inflatable bag-like member 19 (variable capacity element) is provided at a bottom face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as rubber. The air in atmosphere may flow into and out of the bag-like member 19 by inflow/outflow means 20 equipped with a solenoid valve 27, and the like. In a lifting state of the foot mechanism 6, inflow of the air into the bag-like member 19 is controlled, thereby controlling the final height of the bag-like member 19 in an inflated state to the height in response to a gait type of the robot. While properly reducing an impact load during a landing motion of the leg of a legged mobile robot depending on the gait type of the robot, stability of a posture of the robot may easily be secured, resulting in allowing a configuration to be lighter in weight.