Abstract: A cryopump includes a cryopanel disposed in a cryopump housing and including a non-combustible adsorbent, a heater heating the non-combustible adsorbent and the cryopanel, a purge valve connecting the cryopump housing to a purge gas source, a rough valve connecting the cryopump housing to a rough pump, a sensor that generates a measurement signal indicating a temperature of the non-combustible adsorbent or an internal pressure of the cryopump housing, and a controller that controls at least one of the heater, the purge valve, and the rough valve based on the measurement signal so as to execute either a sublimation regeneration sequence for sublimating water from the non-combustible adsorbent by exposing the non-combustible adsorbent to a vacuum atmosphere or a dehydration sequence for dehydrating the non-combustible adsorbent by exposing the non-combustible adsorbent to a dry atmosphere at room temperature or a temperature higher than the room temperature.

Abstract: A robot joint structure includes a first robot member, a second robot member, and a speed reducer incorporated in a joint portion that connects the first robot member and the second robot member to each other. The speed reducer includes an external gear, an internal gear that meshes with the external gear, and a fixing member that is provided so as to be non-rotatable relative to the internal gear and is fixed to the first robot member. The fixing member is fixed to the first robot member by bringing an inner peripheral surface of the first robot member and an outer peripheral surface of the fixing member into pressure contact with each other by fastening using a first fastening member. At least a part of an axial range of the first fastening member does not overlap internal teeth of the internal gear when viewed in a radial direction.

Abstract: Wearable systems to partially support the weight of a human user engaged in task performance in a crouched position at or near ground level are presented herein. In one aspect, the wearable systems employ passive mechanisms and the configuration of the support mechanisms is changed by movements of the body of the human user while transitioning from a standing position to a crouched position, and vice-versa. In a further aspect, each passive lower body support assembly includes an auxiliary body support structure to enhance the support of the human user in a crouched position. In another further aspect, each auxiliary body support structure is deployed in coordination with the movement of the seat support structure that supports the human user. In some embodiments, one or more body support structures are constructed from an elastic material that conforms to the ground surface when loaded by the weight of the human user.

Abstract: A wheel drive device that drives a wheel includes an output member, and a wheel member that is connected to the output member, in which the output member and the wheel member include a spigot fitting portion in which an outer peripheral spigot surface and an inner peripheral spigot surface are spigot-fitted, an anti-fretting agent is applied to the spigot fitting portion, and a seal member that prevents leakage of the anti-fretting agent is disposed between the output member and the wheel member.

Abstract: A cryopump system includes a plurality of cryopumps, each cryopump including a rough valve connecting the cryopump to a common rough pump and a pressure sensor measuring a pressure in the cryopump, and a controller that controls, for each cryopump, the rough valve based on a measured pressure from the pressure sensor such that the cryopump is decompressed to a first reference pressure by the common rough pump and thereafter a vacuum is maintained in the cryopump, and the cryopump is further decompressed to a second reference pressure lower than the first reference pressure by the common rough pump. The controller is configured to, based on the measured pressure from the pressure sensor of a first cryopump, open the rough valve of a second cryopump such that the second cryopump is decompressed to the first reference pressure while the vacuum is maintained in the first cryopump.

Abstract: A cryocooler includes a compressor, an expander that includes a motor and is driven by the motor, an inverter that controls an operation frequency of the motor, a high pressure line that connects the compressor to the expander such that a working gas is supplied from the compressor to the expander, a low pressure line that connects the compressor to the expander such that a working gas is collected from the expander to the compressor, a pressure measurement unit that is configured to measure pressures of the high pressure line and the low pressure line or to measure a differential pressure between the high pressure line and the low pressure line, and a controller that compares the differential pressure to a target pressure and controls the inverter such that the operation frequency of the motor is increased when the differential pressure exceeds the target pressure.

Abstract: A metal pipe forming method includes: disposing a metal pipe material having a hollow shape between a pair of dies; and forming a metal pipe including a pipe portion and a flange portion by expanding the metal pipe material by supplying a fluid and bringing the metal pipe material into contact with the pair of dies. In the forming of the metal pipe, a gap which is positioned between a pair of inner surfaces of the flange portion and communicates with an internal space of the pipe portion is formed, and the flange portion is provided with a through-hole connected to the gap.

Abstract: Provided is a method for producing a gear including an intermediate product forming process of solidifying a fluid material to form a gear intermediate product, and a tooth forming process of cutting the gear intermediate product to form teeth.

Abstract: A cryopump includes: a cryocooler which includes a high-temperature cooling stage and a low-temperature cooling stage; a radiation shield which surrounds the low-temperature cooling stage, extends in an axial direction, and is thermally coupled to the high-temperature cooling stage; a plurality of adsorption cryopanels which are disposed between a cryopump intake port and the low-temperature cooling stage in the axial direction and are thermally coupled to the low-temperature cooling stage; and a condensation cryopanel which is disposed between the radiation shield and the plurality of adsorption cryopanels in a radial direction, is thermally coupled to the low-temperature cooling stage, and has a tubular shape extending in the axial direction and being open at both ends.

Abstract: A compressive torsion forming device for processing a processing material using a first die and a second die facing each other includes a sliding portion that includes a first hydraulic chamber, and slides in accordance with a change in internal pressure of the first hydraulic chamber so as to move the first die in a direction of an axis; a rotating table provided with the second die and rotatable about the axis; a table support portion provided opposite to the second die with the rotating table interposed therebetween in the direction of the axis; and a rotational bearing that rotatably supports the rotating table with respect to the table support portion, and receives a force acting on the rotating table in a direction from the second die toward the rotating table.

Abstract: A friction transmission device has a friction transmission mechanism that transmits power by contact between a take-out member from which output rotation is taken out and a plurality of friction rolling elements. The take-out member has a contact surface inclined with respect to an axial direction. The device includes an output member that is used to transmit the output rotation to a driven device, and a coupling that connects the take-out member and the output member to each other. The coupling is configured to be more easily deformed than the take-out member and the output member with respect to an axial load, and has a function of absorbing deviation of an axial center between the take-out member and the output member and a function of converting a torque acting on the output member into an axial force to transmit the axial force to a take-out member side.

Abstract: A shovel includes an attachment attached to an upper turning body and a processor configured to calculate a weight of a load carried in the attachment in accordance with a mode selected from a plurality of modes with respect to timing of detection.

Abstract: A cryogenic device includes: a hermetic container; a cryocooler including a mounting portion mounted on the container, a connecting part extending from the mounting portion into the container in an axial direction of the cryocooler, and a cooling stage attached to the connecting part and disposed in the container; and a member to be cooled that is disposed in the container with a gap, which is configured to allow heat to be exchanged, between the cooling stage and the member. The cooling stage includes a cold fin extending in a direction perpendicular to the axial direction. A fin receiving groove recessed in the direction perpendicular to the axial direction is formed in the member to be cooled and extends in the axial direction, and the member to be cooled receives the cold fin in the fin receiving groove with the gap.

Abstract: A shovel includes a lower traveling body, an upper turning body mounted on the lower traveling body, an attachment attached to the upper turning body, and a control device mounted on the upper turning body and configured to assist an excavating motion with the attachment. The control device is configured to derive a target excavation depth based on the hardness of an excavation target.

Abstract: A forming device includes a blow-forming die and a shielding member. The blow-forming die includes a first die that protrudes from a first die holder towards a second die holder and a second die that protrudes from the second die holder towards the first die holder. The shielding member is configured to extend from the first die holder to the second die holder before the blow-forming die commences forming a flange part of a pipe in a sub-cavity part. The sub-cavity part is between a main cavity part and the shielding member. The shielding member is separated from the first die and the second die.

Abstract: A liquid target device includes a liquid accommodation portion in which a target liquid is accommodated, a beam passage through which a charged particle beam emitted from a particle accelerator passes to reach the liquid accommodation portion, a target foil that separates the beam passage and the liquid accommodation portion from each other, and a vacuum foil that separates a vacuum region provided upstream of the beam passage and the beam passage from each other. The beam passage is provided with a first gas chamber into which a cooling gas is supplied at a position on the vacuum foil side and a second gas chamber into which a cooling gas is supplied at a position closer to the target foil side than the first gas chamber and the first gas chamber and the second gas chamber are separated from each other by an intermediate foil.

Abstract: Provided is a forming system that expands a heated metal pipe material to form a metal pipe. The forming system includes a gas supply portion that supplies a gas to the heated metal pipe material to expand the metal pipe material, a nozzle that includes a feed port for supplying the gas, a discharge portion that discharges the gas after expanding the metal pipe material, and a cooling unit that cools the gas flowing through the discharge portion and is provided in the nozzle.

Abstract: There is provided a cryocooler including a cylinder, a displacer disposed inside the cylinder and driven to reciprocate by a gas pressure, a collar rigidly connected to the displacer to reciprocate together with the displacer, a collar chamber divided into an upper section and a lower section by the collar, a second seal portion provided between the displacer and the cylinder to seal the lower section, a lower bumper provided in the lower section to mitigate interference between the displacer and the cylinder when the displacer is located at a bottom dead center, and a communication passage formed in the collar or in the collar chamber to ensure communication between the upper section and the lower section when the displacer is located at a bottom dead center.

Abstract: A cryocooler includes a motion conversion mechanism that converts rotating motion output by a motor into linear reciprocating motion of a displacer and includes a first component and a second component slidably connected to each other, a measuring instrument that is connected to the motor to output time-series data indicating power consumption of the motor or a current flowing through the motor, and a processing unit that detects abrasion of a sliding surface between a first component and a second component of the motion conversion mechanism on the basis of section data including an intake start timing or an exhaust start timing in the time-series data.

Abstract: Provided is a fluid actuator capable of safely driving a drive target. An air actuator using air as a working fluid includes an X-axis pressure sensor that measures air pressures PX+ and PX? along one drive axis, which drives a drive target in an X direction, a Y-axis pressure sensor that measures air pressures PY1+, PY1?, PY2+, and PY2? along two drive axes, which drive the drive target in a Y direction, and an acceleration detection unit that detects translational acceleration and rotational acceleration generated in the drive target on the basis of the measured air pressures PX+, PX?, PY1+, PY1?, PY2+, and PY2?.