Abstract: An overhead transport vehicle includes: an article holding unit configured to hold an article; a linear drive unit configured to drive the article holding unit to move linearly; a pivoting drive unit configured to drive the article holding unit to pivot horizontally; and a control unit configured to control the pivoting drive unit in accordance with orientation of the article held by the article holding unit and orientation of a load port on which the article is placed.

Abstract: A purge system includes a main pipe, a feed controller configured to control a flow rate or a pressure of purge gas flowing through the main pipe, feed paths between respective placing sections and the main pipe, at least one open/close valve correspondingly provided to each of the placing sections and configured to switch the flow of purge gas in the feed paths, and a controller configured to control an open/close state of the open/close valve and control the feed controller based on open/close states of all of the open/close valves provided to the main pipe.

Abstract: A flow rate measurement device measures the flow rate of purge gas in a purge device configured to supply the purge gas to a container including a bottom lid configured to be attached to and detached from a container body. The flow rate measurement device includes: a base on which a flow-rate measurer is mounted; an engaged part provided in the base and configured to be engaged with the bottom lid; and a flow passage through which the purge gas injected from an injection port of the bottom lid is circulated to the flow-rate measurer when the engaged part is engaged with the bottom lid.

Abstract: An overhead transport system includes an overhead transport vehicle including a conveyor and a body, and a controller. The conveyor includes wheels to travel on rails including straight rails and intersection rails alternately arranged with a gap in each of a first direction and a second direction perpendicular to the first direction. The controller is configured or programmed to execute steering control to steer the wheels in a state in which each of the wheels is positioned on one of the intersection rails different from one another. A steering center of the wheel under the steering control is on the intersection rail and inward of the body from a ground contact point of the wheel on the intersection rail.

Abstract: The storage rack includes two base frames suspended from the ceiling, and two beam members bridged over the base frames and included in a loading portion on which a container is placed. A kinematic pin configured to position the container, a nozzle configured to supply fluid into the container, a distribution pipe configured to send the fluid to the nozzle, and a regulator provided to the distribution pipe configured to adjust the fluid are attached to one of the beam members.

Abstract: A transport vehicle system includes a transport vehicle having a first travel unit configured to travel on a track and a transfer unit configured to move in a horizontal direction with respect to the first travel unit to transfer an article and a buffer vehicle having a second travel unit configure to travel on the track on which the transport vehicle travels and an article placement unit provided to be movable integrally with the second travel unit and to be able to deliver the article with the transfer unit of the transport vehicle.

Abstract: A traveling vehicle system includes a track including a first gap, a partial track, and a second gap, a traveling vehicle including a drive wheel and first and second auxiliary wheels, a first auxiliary track on a near side of the first gap in a traveling direction and in contact with a lower end of the first auxiliary wheel while a lower end of the drive wheel passes through the first gap when the drive wheel enters the partial track, and a second auxiliary track on a far side of the second gap in the traveling direction and in contact with a lower end of the second auxiliary wheel while the lower end of the drive wheel passes through the second gap when the drive wheel leaves the partial track.

Abstract: A ceiling traveling vehicle includes a traveler to travel along a grid-shaped track, a main body coupled to the traveler and below the track, and a detector on a rear side of a center of the main body in a traveling direction of the traveler and below the main body to apply detection light forward in the traveling direction and downward and receive reflected light of the detection light to detect an obstacle.

Abstract: A traveling vehicle system includes a track and a ceiling traveling vehicle. The track includes a first track, a second track, and a connection track. The ceiling traveling vehicle includes a direction changer that turns a coupler, which couples a traveling wheel and a main body to each other and passes through a gap between the first track or the second track and the connection track. A guider is provided in the coupler, moves along a first guide surface in a first state in which the traveling wheel rolls on the first track, and moves along a second guide surface in a second state in which the traveling wheel rolls on the second track.

Abstract: A conveyance system includes vehicles and a controller configured or programmed to control the vehicles and perform periodic communication to communicate with the vehicles sequentially and periodically. When at least one of the vehicles is in a predetermined operating state, the controller is configured or programmed to stop communicating with the at least one of the vehicles in the periodic communication or reduce a frequency of communication with the at least one of the vehicles in the periodic communication.

Abstract: A flow rate measurement device measures the flow rate of purge gas in a purge device configured to supply the purge gas to a container including a bottom lid configured to be attached to and detached from a container body. The flow rate measurement device includes: a base on which a flow-rate measurer is mounted; an engaged part provided in the base and configured to be engaged with the bottom lid; and a flow passage through which the purge gas injected from an injection port of the bottom lid is circulated to the flow-rate measurer when the engaged part is engaged with the bottom lid.

Abstract: A purge device includes a base to which a positioning pin to support a container to be purged is attached, and a nozzle to be connected to a gas inlet of the container supported by the positioning pin. The purge device includes a nozzle including a main body portion attached to the base via the positioning pin, and a gas introduction portion coupled to the main body portion and provided with the nozzle.

Abstract: The object is to provide a vehicle system capable of suppressing a decrease in article transport efficiency while ensuring a route of an operator. The vehicle system includes a grid-patterned rail, a vehicle traveling on the rail, a controller that controls the vehicle, a work terminal that transmits identification information indicating an actual location to the controller, and a scaffold for allowing an operator carrying the work terminal to walk below the rail, the scaffold being provided below the rail. If entry permission to one or more cells formed by the rail is obtained from the controller, the vehicle enters the one or more cells. If entry permission to the one or more cells is not obtained from the controller, the vehicle does not enter the one or more cells.

Abstract: An overhead traveling vehicle system having an overhead traveling vehicle includes a main body, at least an upper surface of which is of a rectangular shape as viewed in a plan view, and a traveling wheel provided in each of four corners on the upper surface of the main body and rolls on a traveling surface of a track, the main body being arranged below the track by connectors each extending downwardly from the traveling wheel, wherein the overhead traveling vehicle includes charging electrodes on the upper surface of the main body, and a charger is arranged in a space above the traveling surface, at least a part of which overlaps with a movement space for the traveling wheels as viewed in a side view, and does not overlap with the movement space as viewed in a plan view.

Abstract: A ceiling storage system includes an overhead transport vehicle and a storage rack. The overhead transport vehicle has a traveling section traveling on rails arranged in a grid pattern, and a body section suspended from the traveling section and configured to hold an article on an underside of the rails. The storage rack has a plurality of suspension members extending in an up-down direction, and having a middle portion provided with a rail support and a bottom end provided with a unit support, and a shelf unit and a scaffolding unit supported by the unit support of the suspension members. The corner portion of the shelf unit and the corner portion of the scaffolding unit are supported by the unit support.

Abstract: An overhead storage system includes an overhead transport vehicle including a traveling unit configured to travel on a rail arranged in a grid pattern and a body section suspended from the traveling unit and configured to hold an article below the rail; a storage rack disposed below the rail; and a control unit configured to control operation of the overhead transport vehicle. The body section includes a transfer device capable of transferring the article to and from the storage rack. In the storage rack, a plurality of article placement areas on which the article is able to be placed by the transfer device are set in a storage area corresponding to each of cells forming a matrix in the grid pattern of the rail.

Abstract: The storage rack includes two base frames suspended from the ceiling, and two beam members bridged over the base frames and included in a loading portion on which a container is placed. A kinematic pin configured to position the container, a nozzle configured to supply fluid into the container, a distribution pipe configured to send the fluid to the nozzle, and a regulator provided to the distribution pipe configured to adjust the fluid are attached to one of the beam members.

Abstract: A storage shelf includes a body and a pair of storage portions in the body and facing each other across a predetermined area. The pair of storage portions includes a shelf plate movable with respect to the body and to support an article, a guide extending in a facing direction of the pair of storage portions to guide movement of the movable shelf plate, a driver to move the movable shelf plate along the extending direction of the guide, and a drive controller to control the driver. The guides facing each other in the pair of storage portions are connected by a connector in the area, and the connector guides the movement of the movable shelf plate to the area.

Abstract: A transport vehicle system includes a transport vehicle having a first travel unit configured to travel on a track and a transfer unit configured to move in a horizontal direction with respect to the first travel unit to transfer an article and a buffer vehicle having a second travel unit configure to travel on the track on which the transport vehicle travels and an article placement unit provided to be movable integrally with the second travel unit and to be able to deliver the article with the transfer unit of the transport vehicle.

Abstract: An overhead transport system includes an overhead transport vehicle including a conveyor and a body, and a controller. The conveyor includes wheels to travel on rails including straight rails and intersection rails alternately arranged with a gap in each of a first direction and a second direction perpendicular to the first direction. The controller is configured or programmed to execute steering control to steer the wheels in a state in which each of the wheels is positioned on one of the intersection rails different from one another. A steering center of the wheel under the steering control is on the intersection rail and inward of the body from a ground contact point of the wheel on the intersection rail.