Daifuku Co.

Shiga, Japan

Daifuku Co.

Shiga, Japan

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Patent
Daifuku Co. | Date: 2016-09-29

An article transport vehicle includes a travel member capable of traveling along a travel path, a support member located below the travel member for supporting an article, and a connecting member which connects the travel member and the support member to each other. The connecting member includes a travel member side connecting portion connected to the travel member, a support member side connecting portion connected to the support member, and an elastic member which is elastically deformable. The travel member side connecting portion and the support member side connecting portion are connected to each other for relative movement along the vertical direction. An elastic member is interposed between the travel member side connecting portion and the support member side connecting portion.


Patent
Daifuku Co. | Date: 2016-11-16

An article transport facility comprises storage sections, a transport device, a controller, and a learning module. The transport device has a transfer device having a support portion, and a light-emitter-receiver. The controller is caused to store information that indicates a second target position at which the transfer device is located when transferring an article, and information that indicates a first target position to which the support portion is moved. Each of a plurality of storage sections is provided with a reflector. A learning control performed by the controller is a control in which a first target position and a second target position are learned based on information of an image of the reflector captured by the imaging device of the learning module and pre-learning position information. Each reflector has a first area which forms the periphery of the reflector, and a second area in the first area. The relationship between the reflectance and the wave length of the reflected light is different between the first area and the second area.


Patent
Daifuku Co. | Date: 2016-11-16

When an external force applied condition that an external force that causes a decrease in a rotational speed of an electric motor is applied to the contact member moved by the electric motor is satisfied while the actuation controller is performing a first control for continuously performing a process of providing the electric motor with a command value that depends on an error between an actual rotational speed of the electric motor and a first target rotational speed so as to cause the actual rotational speed to approach the first target rotational speed, then the actuation controller, subsequent to the first control, performs a second control for providing the electric motor with a command value that allows the actual rotational speed of the motor to be equal to, and to fall below, the first target rotational speed at a time of the external force applied condition becoming satisfied.


Patent
Daifuku Co. | Date: 2016-10-20

A conveying device has interlockingly coupled, rectilinear screw shafts which are driven by a motor. The screw shafts are juxtaposed to an inclined rectilinear portion of a gradient portion in a traveling route of a conveying traveling body and to at least fixed regions adjacent to the gradient portion of respective upper and lower horizontal route portions connected to respective ends of the gradient portion. The conveying traveling body has a pair of front and rear driven rollers engaging with the screw shafts, and an interval between the pair of front and rear driven rollers is set to a length not shorter than a rectilinear distance between end portions of the screw shafts positioned at respective sides of each of arcuate portions at respective upper and lower ends of the gradient portion to make the conveying traveling body travel continuously between the respective upper and lower horizontal route portions.


Patent
Daifuku Co. | Date: 2017-05-24

When an external force applied condition is satisfied while the actuation controller is performing a first control for continuously performing a process of providing the electric motor with a command value that depends on an error between an actual rotational speed of the electric motor and a first target rotational speed so as to cause the actual rotational speed to approach the first target rotational speed, then the actuation controller, subsequent to the first control, performs a second control.


Patent
Daifuku Co. | Date: 2016-12-08

An article transport facility is provided with a first control device that controls an article transport vehicle in a first area in which articles are transported, and a second control device that controls the article transport vehicle in a second area in which adjustment of the article transport vehicle is performed. Based on a withdrawal instruction from the first control device, an operation control portion of an article transport vehicle that needs adjustment causes the article transport vehicle to enter the second area, and a communication control portion that can perform exclusive wireless communication with the first control device and the second control device changes the communication destination to the second control device. In response to an adjustment instruction from the second control device, the operation control portion performs adjustment operations with use of the adjustment device and updates transport profile information in a profile storage portion, and then the communication control portion changes the communication destination to the first control device after updating is complete.


Patent
Daifuku Co. | Date: 2017-01-11

An operation device is provided with: a coupler portion configured to be coupled to a travel member that travels within a travel space that is located above a passage space that allows an operator to pass through; and a rod-shaped portion that extends from the coupler portion to the passage space. The travel member is provided with: a brake mechanism; a coupling-target portion to which the coupler portion is coupled; and a cancellation input terminal. The operation device is provided with: a cancellation output terminal configured to be connected to the cancellation input terminal; a command receiver configured to receive a manual operation that is performed to make an instruction to output the cancellation signal; and a grip configured to be gripped by the operator. The grip and the command receiver are located within the passage space when the coupler portion is coupled to the coupling-target portion.


Patent
Daifuku Co. | Date: 2017-01-11

A controller provided to an article transport device is configured to perform a transfer control and an oscillation damping control. The transfer control is a control for controlling an operation of an actuator while a travel portion is at rest to cause a first support portion to be moved with respect to the travel portion between a first position within a travel path and a second position for transferring an article between the first support portion and a transport target location which is one of a transport origin and a transport destination for the article. The oscillation damping control is a control for controlling the operation of the actuator based on a physical quantity detected by a detector, while the travel portion is traveling and the first support portion is supporting an article, to reduce the oscillation of the article supported by the first support portion that occurs while the travel portion is traveling.


Patent
Daifuku Co. | Date: 2017-02-07

An article transport facility includes a traveling portion configured to travel on a traveling rail, a cleaning unit coupled to the traveling portion, a feeding portion configured to supply traveling driving power for the traveling portion and cleaning driving power for the cleaning unit, a power storage device connected between the feeding portion and the cleaning unit, and a power control portion. The power control portion is configured to: charge the power storage device with power corresponding to a driving state of the traveling portion and a position of the traveling portion along the transport path; and discharge the power storage device when power received from the feeding portion is insufficient relative to a total power of the traveling driving power and the cleaning driving power.


Patent
Daifuku Co. | Date: 2017-02-09

A controller performs a stop control if a first detector detects that an article transport vehicle traveling in a first path entered a managed area, and a second detector or a third detector detects that another article transport vehicle exists in a selected path. And the controller performs a travel control if the first detector detects that an article transport vehicle traveling in a first path entered the managed area, and presence of another article transport vehicle is not detected in the selected path by the second detector or the third detector.

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