A rail-guided vehicle is capable of accurately determining an abnormality of a position of rail peripheral equipment. The rail-guided vehicle travels along a rail. The rail-guided vehicle is provided with: a vehicle body including a body part and a traveling part; a light projecting/receiving sensor and contact type sensors provided in the vehicle body that each detect a position of rail peripheral equipment; and a length measuring sensor that measures behavior of the vehicle body at the time of detection of the rail peripheral equipment by the light projecting/receiving sensor and the contact type sensors.

Proposed are an OHT vehicle and a method of controlling the operation of the same. More particularly, proposed is a technology in which when a steering change is not performed properly as a steering wheel is adhered to a damper during the operation of a steering unit of an OHT vehicle, a dithering motion function is applied to the steering wheel to enable an efficient steering change of the OHT vehicle.

An unmanned rail vehicle for surveillance, inspection, and/or maintenance of an industrial site is provided. The rail vehicle includes at least two carry rollers adapted for engaging on an upper rail side of a rail, wherein the center of gravity of the rail vehicle is vertically below the upper rail side; and at least one support roller connected to the chassis and adapted for rolling against a lateral rail side of the rail to laterally displace the center of gravity of the rail vehicle with respect to the upper rail side.

An unmanned rail vehicle for surveillance, inspection, and/or maintenance of an industrial site is provided. The rail vehicle includes at least two carry rollers adapted for engaging on an upper rail side of a rail, wherein the center of gravity of the rail vehicle is vertically below the upper rail side; and at least one support roller connected to the chassis and adapted for rolling against a lateral rail side of the rail to laterally displace the center of gravity of the rail vehicle with respect to the upper rail side.

A transport system includes: a grid-patterned rail that has a plurality of first rails extending in a first direction and a plurality of second rails extending in a second direction different from the first direction and intersecting with the first rails and that forms a plurality of cells with the plurality of first rails and the plurality of second rails; an overhead transport vehicle that travels along the grid-patterned rail, a suspender that is suspended from the grid-patterned rail; and a frame surrounding one of the cells in a plan view and is provided below the suspender.

A transport system includes: a grid-patterned rail that has a plurality of first rails extending in a first direction and a plurality of second rails extending in a second direction different from the first direction and intersecting with the first rails and that forms a plurality of cells with the plurality of first rails and the plurality of second rails; an overhead transport vehicle that travels along the grid-patterned rail, a suspender that is suspended from the grid-patterned rail; and a frame surrounding one of the cells in a plan view and is provided below the suspender.

A traveling vehicle system includes a plurality of traveling vehicles, a controller that controls the plurality of transport vehicles, a traveling region of the traveling vehicles having a plurality of blocking sections each of which undergoes exclusive control to prohibit another traveling vehicle from moving thereinto. The traveling vehicle makes a request to the controller for occupation permissions regarding a plurality of blocking sections to be occupied by the traveling vehicle and are designated by instructions. The controller then determines, among the plurality of blocking sections for which the traveling vehicle makes a request for occupation permissions, one or more of the blocking sections that are able to allow permissions consecutively from an end thereof to be primarily occupied, based on the traveling direction of the traveling vehicle, and the controller grants the traveling vehicle the permissions for one or more blocking sections determined to allow the permissions.

A traveling vehicle system includes a plurality of traveling vehicles, a controller that controls the plurality of transport vehicles, a traveling region of the traveling vehicles having a plurality of blocking sections each of which undergoes exclusive control to prohibit another traveling vehicle from moving thereinto. The traveling vehicle makes a request to the controller for occupation permissions regarding a plurality of blocking sections to be occupied by the traveling vehicle and are designated by instructions. The controller then determines, among the plurality of blocking sections for which the traveling vehicle makes a request for occupation permissions, one or more of the blocking sections that are able to allow permissions consecutively from an end thereof to be primarily occupied, based on the traveling direction of the traveling vehicle, and the controller grants the traveling vehicle the permissions for one or more blocking sections determined to allow the permissions.

A gripper device includes a pair of engaging portions attached to an elevating section capable of lifting and lowering above an article and respectively engageable with the pair of held portions, and a driver to move the pair of engaging portions from a standby position where a distance between the pair of engaging portions is shorter than an interval between the pair of held portions, to an engaging position where the pair of engaging portions is capable of engaging with the pair of held portions, such that the pair of engaging portions separate from one another.

A gripper device includes a pair of engaging portions attached to an elevating section capable of lifting and lowering above an article and respectively engageable with the pair of held portions, and a driver to move the pair of engaging portions from a standby position where a distance between the pair of engaging portions is shorter than an interval between the pair of held portions, to an engaging position where the pair of engaging portions is capable of engaging with the pair of held portions, such that the pair of engaging portions separate from one another.