Article sorting facility

Patent metadata

Field	Value
Publication number	US-11312580-B2
Application number	US-202017133780-A
Country	US
Kind code	B2
Filing date	Dec 24, 2020
Priority date	Jul 13, 2018
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

An article sorting facility includes a plurality of storage members each configured to store one or more articles, a plurality of article transport vehicles each capable of traveling in at least a portion of a preset travel lane with one or more support members on board, each support member being configured to support one or more articles; a plurality of work areas each configured to allow work to be performed to transfer articles between one or more storage members and at least one of the one or more support members on board an article transport vehicle in the travel lane, wherein each of the work areas is located adjacent to one or more storage members and to the travel lane, wherein the plurality of work areas are arranged one adjacent to another along the travel lane, and wherein two or more article transport vehicles are in the travel lane simultaneously to travel in a line.

First claim

What is claimed is:

1. An article sorting facility comprising:
a plurality of storage members, each configured to store one or more articles;
a plurality of article transport vehicles with one or more support members on board, each support member being configured to support one or more articles;
a preset transfer lane; and
a plurality of work areas each configured to allow work to be performed to transfer articles between one or more storage members and at least one of the one or more support members on board an article transport vehicle in the transfer lane,
wherein each of the plurality of work areas is configured to permit a worker or a transfer robot to perform article transfer work,
wherein each of the work areas is located adjacent to one or more storage members and to the transfer lane as seen along a vertical direction, wherein the plurality of work areas are arranged one adjacent to another along the transfer lane,
wherein the article sorting facility further comprises an end area which is connected to a downstream side end portion of the transfer lane,
wherein the end area is an area in which article transport vehicles are capable of traveling without restrictions in terms of travel directions and travel paths,
wherein the article sorting facility further includes a return lane which is connected to the end area and the transfer lane,
wherein an upstream side end portion of the return lane is connected to the end area, and
wherein a downstream side end portion of the return lane is connected to an upstream side end portion of the transfer lane.

2. The article sorting facility as defined in claim 1 ,
wherein the article sorting facility further comprises another lane which allows an article transport vehicle to travel in parallel to an article transport vehicle that is in the transfer lane,
wherein the article transport vehicle is configured to be capable of changing lanes in the transfer lane at any location along the transfer lane.

3. The article sorting facility as defined in claim 1 ,
wherein the transfer lane has lane areas that correspond in location to the work areas with each lane area corresponding to a work area, and
wherein article transport vehicles travel such that there are one or more article transport vehicles in each of the lane areas.

4. The article sorting facility as defined in claim 1 ,
wherein each of the plurality of article transport vehicles is capable of independently changing its travel speed.

5. The article sorting facility as defined in claim 1 , further comprising:
a completed lane which allows an article transport vehicle to travel in parallel to an article transport vehicle that is in the transfer lane, and
wherein each of the plurality of article transport vehicles is configured to be capable of changing lanes from the transfer lane to the completed lane during traveling in the transfer lane.

6. The article sorting facility as defined in claim 1 , further comprising:
a branch lane which allows an article transport vehicle to travel in parallel to an article transport vehicle that is in the transfer lane, and
wherein each of the plurality of article transport vehicles is configured to be capable of changing lanes from the transfer lane to the branch lane during traveling in the transfer lane and from the branch lane to the transfer lane during traveling in the branch lane.

7. The article sorting facility as defined in claim 1 ,
wherein each of the plurality of article transport vehicles is provided with a weighing portion configured to measure the weight of one or more articles supported by at least one of the one or more support members.

8. The article sorting facility as defined in claim 1 ,
wherein at least one temporary storage station is provided for each work area,
wherein each temporary storage station is configured to be capable of being placed in a holding state for holding at least one article and in a removing state for removing every article held therein,
wherein each temporary storage station is placed in the holding state when there is no article transport vehicle in a position corresponding to the temporary storage station, and
wherein each temporary storage station is placed in the removing state when an article transport vehicle is in the position corresponding to the temporary storage station.

9. The article sorting facility as defined in claim 1 ,
wherein the plurality of storage members are disposed on an opposite side to the transfer lane across the plurality of work areas as seen along the vertical direction.

10. The article sorting facility as defined in claim 1 ,
wherein the transfer lane has lane areas that correspond in location to the work areas with each lane area corresponding to a work area, and
wherein each of the plurality of article transport vehicles is configured to travel, when traveling in a lane area: (a) at a first speed until all required picking work, that needs to be performed in a work area that corresponds to the lane area, to transfer one or more articles to at least one of the one or more support members on board the article transport vehicle is completed in the work area; and (b) at a second speed, which is a higher speed than the first speed, after the required picking work to transfer the one or more articles to the at least one of the one or more support members on board the article transport vehicle has been completed.

11. The article sorting facility as defined in claim 1 ,
wherein the one or more support members include a first support member and a second support member, each configured to independently support one or more articles,
wherein the first support member and the second support member are located horizontally adjacent to each other when placed on board an article transport vehicle,
wherein, with a work side being a side on which the work areas are located with respect to the transfer lane,
wherein each of the plurality of article transport vehicles is configured to be capable of rotating the support members about an axis extending along a vertical direction, and
wherein each of the plurality of article transport vehicles is configured to be capable of rotating the support members, while in the transfer lane, to a first rotational state in which the first support member is located on the work side with respect to the second support member and to a second rotational state in which the second support member is located on the work side with respect to the first support member.

12. The article sorting facility as defined in claim 1 ,
wherein the plurality of storage members and the transfer lane are disposed on the same side with respect to the plurality of work areas as seen along the vertical direction, and overlap each other as seen along the vertical direction.

13. The article sorting facility as defined in claim 1 ,
wherein the article sorting facility further comprises a completed lane which allows an article transport vehicle to travel in parallel to an article transport vehicle that is in the transfer lane, and
a branch lane which allows an article transport vehicle to travel in parallel to an article transport vehicle that is in each of the transfer lane and the completed lane,
wherein the completed lane and the branch lane are disposed on an opposite side to the plurality of work areas across the transfer lane as seen along the vertical direction.

14. An article sorting facility comprising:
a plurality of storage members, each configured to store one or more articles;
a plurality of article transport vehicles each capable of traveling in at least a portion of a preset trav

Assignees

• Daifuku Kk

Inventors

• Mori Hiroyuki

Classifications

• B65G1/1375 Primary

  the orders being assembled on a commissioning stacker-crane or truck · CPC title

• B65G15/12

  with two or more endless belts · CPC title

• B65G1/0492 Primary

  with cars adapted to travel in storage aisles · CPC title

• B65G47/642 Primary

  in a horizontal plane · CPC title

• B65G47/64

  Switching conveyors · CPC title