A robot arm comprising a joint mechanism for articulating one limb (310) of the arm relative to another limb (311) of the arm about two non-parallel rotation axes (20, 21), the mechanism comprising: an intermediate carrier (28) attached to a first one of the limbs by a first revolute joint having a first rotation axis and to a second one of the limbs by a second revolute joint having a second rotation axis; a first drive gear (33) disposed about the first rotation axis and fast with the carrier, whereby rotation of the carrier relative to the first limb about the first rotation axis can be driven; a second drive gear (37) disposed about the second rotation axis and fast with the second one of the limbs, whereby rotation of the second one of the limbs about the second rotation axis relative to the carrier can be driven; at least one of the first and second drive gears being a sector gear.

A robot arm includes a wrist, an end effector, and an adjustable joint coupling the end effector to the wrist. The adjustable joint includes a member received in a socket. In one example, the member is a ball. In another example, the member is a tang. In both examples, an upper flange and a lower flange can be used to couple the wrist to a forearm.

A robot arm comprising a joint mechanism for articulating one limb (310) of the arm relative to another limb (311) of the arm about two non-parallel rotation axes (20, 21), the mechanism comprising: an intermediate carrier (28) attached to a first one of the limbs by a first revolute joint having a first rotation axis and to a second one of the limbs by a second revolute joint having a second rotation axis; a first drive gear (33) disposed about the first rotation axis and fast with the carrier, whereby rotation of the carrier relative to the first limb about the first rotation axis can be driven; a second drive gear (37) disposed about the second rotation axis and fast with the second one of the limbs, whereby rotation of the second one of the limbs about the second rotation axis relative to the carrier can be driven; at least one of the first and second drive gears being a sector gear.

The invention relates to an improved robotic arm apparatus and associated method which improves a robot configured in a delta arrangement. The robotic arm apparatus is arranged with three substantially identical movable arm assemblies connected together with three linear actuators in a triangular configuration such that each end of each linear actuator has at least one translational degree of freedom.

An arm assembly of a robot includes a servo coupled to the chest of the robot, an upper arm driven by the servo, a forearm rotatably coupled to the upper arm, a hand connected to an end of the forearm and rotatable about a first axis extending along a lengthwise direction of the forearm; and a hand transmission mechanism configured to transmit motion from the servo to the hand so as to drive the hand to rotate about the first axis.

A joint structure for a robot according to the present disclosure includes a first link and a second link rotatably coupled to each other via a joint part. The joint part has a first rotary member disposed so that an axial center thereof is oriented in a first direction and connected to the first link, a pair of second rotary members disposed so that an axial center thereof is oriented in a second direction perpendicular to the first direction, and so as to engage with the first rotary member, and a shaft member formed in a T-shape and having a first shank and a pair of second shanks. The joint structure further includes a pressing member connected to the second shank and configured to press the second rotary member inwardly.

A linear extension and retraction mechanism includes a plurality of first pieces shaped like a plate and coupled bendably with one another by first hinge sections, and a plurality of second pieces C-shaped or hollow square-shaped in transverse section. Each of the first hinge sections is made up of a shaft, columnar in shape, and bearing sections for the shaft, the bearing sections being provided on front and rear ends of each of the first pieces. A flange, non-circular in shape, is provided at a rear end of the shaft. A receiving section shaped as a recess and configured to accommodate a shape of the flange is provided in the bearing section at the front or rear end of the first piece. The flange is fitted in the receiving section.

A robot arm includes a wrist, an end effector, and an adjustable joint coupling the end effector to the wrist. The adjustable joint includes a member received in a socket. In one example, the member is a ball. In another example, the member is a tang. In both examples, an upper flange and a lower flange can be used to couple the wrist to a forearm.

An active-passive parallel-connected reduction robot includes: an active manipulator, provided with an active output end having multiple degrees of freedom; a synchronized motion platform, a fracture reduction needle being fixedly mounted on the synchronized motion platform, the active output end of the active manipulator being connected to the synchronized motion platform; and a passive manipulator, one end thereof being fixedly provided, the other end being provided with a passive output end having multiple degrees of freedom, and the passive output end being slidably mounted on the synchronized motion platform. The passive manipulator is capable of maintaining a locked degree of freedom when the active manipulator drives the synchronized motion platform to insert the fracture reduction needle into a fractured end requiring reduction. The active manipulator drives the synchronized motion platform to execute a reduction operation with the support of the passive manipulator.

Provided is an information processing device including a measured value acquisition section, a contact event detection section, and an activeness determination section. The measured value acquisition section acquires a measured value indicative of a change in the motion state of a part of a housing. The contact event detection section detects, on the basis of the measured value, a contact event that has occurred on the part of the housing. The activeness determination section determines, in a case where the contact event is detected on a moved portion included in the part of the housing, that the contact event is active.