Abstract: A transfer device includes a controller configured or programmed to perform at least one of a first control to make a maximum acceleration when moving a FOUP to a front end side smaller than a maximum acceleration when moving to a back end side, a second control to make a maximum deceleration when moving the FOUP to the front end side greater than a maximum deceleration when moving to the back end side, a third control to make the absolute value of the maximum deceleration when moving the FOUP to the front end side greater than the absolute value of the maximum acceleration, and a fourth control to make the absolute value of the maximum acceleration when moving the FOUP to the back end side greater than the absolute value of the maximum deceleration.

Abstract: A transfer device includes a controller configured or programmed to perform at least one of a first control to make a maximum acceleration when moving a FOUP to a front end side smaller than a maximum acceleration when moving to a back end side, a second control to make a maximum deceleration when moving the FOUP to the front end side greater than a maximum deceleration when moving to the back end side, a third control to make the absolute value of the maximum deceleration when moving the FOUP to the front end side greater than the absolute value of the maximum acceleration, and a fourth control to make the absolute value of the maximum acceleration when moving the FOUP to the back end side greater than the absolute value of the maximum deceleration.

Abstract: An overhead transport vehicle includes a lift stage to transfer an article, a winding drum to overlap and wind a suspension attached to the lift stage, and a controller to control a rotation amount of the winding drum to control a lifting/lowering amount of the lift stage. The controller is configured or programmed to execute a first processing including calculating, as individual values of the overhead transport vehicle, an individual value of an entire length of the suspension, an individual value of a diameter of the winding drum, and an individual value of a thickness of the suspension, and a second processing including calculating a rotation amount of the winding drum with respect to a lifting/lowering amount of the lift stage based on the individual value of the entire length of the suspension, the individual value of the diameter of the winding drum, and the individual value of the thickness of the suspension calculated in the first processing.

Abstract: Each overhead transport vehicle in an overhead transport vehicle system includes a winding drum to wind a hoisting material, attached to a lift stage to transfer goods, by lap winding, and a controller that controls an amount of rotation of the winding drum to control a height of the lift stage. The amount of rotation of the winding drum corresponding to an overall length of the hoisting material, unique to each overhead transport vehicle, is stored, and the amount of rotation of the winding drum corresponding to the corresponding one of a plurality of transfer heights is calculated from the amount of rotation unique to each overhead transport vehicle.

Abstract: Each overhead transport vehicle in an overhead transport vehicle system includes a winding drum to wind a hoisting material, attached to a lift stage to transfer goods, by lap winding, and a controller that controls an amount of rotation of the winding drum to control a height of the lift stage. The amount of rotation of the winding drum corresponding to an overall length of the hoisting material, unique to each overhead transport vehicle, is stored, and the amount of rotation of the winding drum corresponding to the corresponding one of a plurality of transfer heights is calculated from the amount of rotation unique to each overhead transport vehicle.