WO2012060291A1 - 搬送システム及び搬送方法 - Google Patents
搬送システム及び搬送方法 Download PDFInfo
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- WO2012060291A1 WO2012060291A1 PCT/JP2011/074923 JP2011074923W WO2012060291A1 WO 2012060291 A1 WO2012060291 A1 WO 2012060291A1 JP 2011074923 W JP2011074923 W JP 2011074923W WO 2012060291 A1 WO2012060291 A1 WO 2012060291A1
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- Prior art keywords
- track
- local
- article
- overhead traveling
- traveling vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
- B65G37/02—Flow-sheets for conveyor combinations in warehouses, magazines or workshops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67733—Overhead conveying
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67736—Loading to or unloading from a conveyor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67763—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H01L21/67769—Storage means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0297—Wafer cassette
Definitions
- the present invention relates to a transport system, and more particularly to a transport system that supplies and unloads articles without waiting for a processing apparatus.
- the overhead traveling vehicle for long-distance conveyance delivers articles between the buffers
- the overhead traveling vehicle for short-distance conveyance delivers articles between the buffers and the load port.
- a buffer having a transport device is provided on the front surface of the processing device, the overhead traveling vehicle delivers articles to and from the buffer, and the transport device in the buffer is between the load port and the vehicle. Deliver goods.
- a display showing the operating status, an operation panel for manual operation, and the like are provided, and it is not preferable to block these with a buffer.
- the load port is not used only by the automatic conveyance device, and may manually supply and carry out articles. If the front surface of the processing device is covered with a buffer, it is difficult to access the load port manually.
- An object of the present invention is to temporarily store an article without blocking the front surface of the processing apparatus and effectively using an empty space between the processing apparatuses.
- An additional problem of the present invention is to make the lifting / lowering amount as small as possible when delivering an article to / from a buffer.
- the present invention relates to an overhead traveling vehicle track that passes over an upper portion of a load port of a processing device, and a ceiling that travels along the track of the overhead traveling vehicle and includes a hoist to transport articles between a plurality of processing devices.
- a transport system comprising a traveling vehicle, A local track disposed at a height level lower than the track of the overhead traveling vehicle, extending at least directly below the track of the overhead traveling vehicle, and facing a direction perpendicular to the track of the overhead traveling vehicle in plan view;
- a local carriage including a hoist that travels along the local track and moves the article up and down;
- a buffer that is disposed at the lower part of the local track so as to be able to deliver and receive articles to and from the local carriage, and extends at least directly below the track of the overhead traveling vehicle; It is characterized by providing.
- the local track and the buffer are arranged at right angles to the track of the overhead traveling vehicle, most of the local track and the buffer can be arranged in the gap between the processing devices, which saves space.
- the track of the overhead traveling vehicle passing through the top of the load port of the processing device;
- a plurality of overhead traveling vehicles that travel along the track of the overhead traveling vehicle and that include a hoist;
- a local track disposed at a height level lower than the track of the overhead traveling vehicle, extending at least directly below the track of the overhead traveling vehicle, and facing a direction perpendicular to the track of the overhead traveling vehicle in plan view;
- a local carriage including a hoist that travels along the local track and moves the article up and down;
- a buffer that is disposed at the lower part of the local track so as to be able to deliver and receive articles to and from the local carriage, and extends at least directly below the track of the overhead traveling vehicle;
- the first overhead vehicle unloads the first article to a first position directly below the track of the overhead vehicle of the buffer;
- the local cart then transports a first article from the first position to
- a third overhead traveling vehicle loads a second article from a load port and unloads it to the first position;
- the local carriage then transports a second article from the first position to a second position of the buffer;
- the local cart transports a second article from the second position to the first position;
- the fourth overhead traveling vehicle carries out the second article from the first position.
- the present invention is also a transport system retrofitted in a direction perpendicular to the track of the overhead traveling vehicle to a height level lower than the track of the overhead traveling vehicle in the existing overhead traveling vehicle system, Local orbit,
- a local carriage including a hoist that travels along the local track and moves the article up and down;
- a buffer disposed in a lower part of the local track so as to be able to deliver and receive articles to and from the local carriage,
- the local track and the buffer are arranged so as to extend directly below the track of the overhead traveling vehicle.
- the existing overhead traveling vehicle system can be retrofitted with a system consisting of a local track, a local carriage and a buffer, and most of this system can be placed in the gap between the processing devices, thus saving space.
- the local track and one end of the buffer are arranged immediately below the track of the overhead traveling vehicle, and the local track and the other end of the buffer are arranged in a gap between the processing devices.
- one end of the buffer protrudes from the gap between the processing devices, and both the local carriage and the overhead traveling vehicle can access the one end of the buffer, and the local track and the other part of the buffer are arranged in the gap between the processing devices and saved. Space. *
- the height of the buffer and the local track is such that a local carriage supporting another article can enter above the placed article.
- a level difference is defined. In this way, since a long linear buffer can be provided in the gap between the processing apparatuses, a large number of articles can be stored.
- a local carriage that supports another article cannot enter the upper part of the placed article, and a local carriage that does not support another article can enter.
- a difference in height level between the buffer and the local trajectory is determined. In this way, the difference in height level between the local track and the buffer is minimized, and when the overhead traveling vehicle and the local carriage deliver the buffer and the article, the amount of lifting of the article is minimized, and the article is received in a short time. Can pass.
- the buffer includes two types of article placement positions with different height levels,
- a local carriage that supports other articles cannot enter the upper part of the placed article, but a local carriage that does not support an article can enter.
- the first type placement position includes a position directly below the track of the overhead traveling vehicle. In this way, when the local cart delivers the article to and from the first type placement position, the lift is small, and the overhead traveling vehicle can also deliver the article with a small lift from the buffer.
- the number of articles stored can be increased.
- the local track is composed of a pair of left and right rails, and the gap between the pair of rails is larger than the length of the article in a direction perpendicular to the longitudinal direction of the rails in the horizontal plane.
- the overhead traveling vehicle can deliver the article to a position directly below the local track of the buffer.
- 1 to 8 show a transport system of the embodiment and its modifications.
- 2 is a transfer system and 4 is a processing apparatus, for example, a semiconductor processing apparatus and a semiconductor inspection apparatus.
- the transport system 2 is provided in a clean room.
- the processing device 4 includes one or a plurality of load ports 6, and a track 10 of the overhead traveling vehicle 12 is provided on the upper portion of the processing device 4, and is supported by a support 11 from the ceiling.
- the overhead traveling vehicle 12 is provided with a hoist 14 as shown in FIG.
- the article 18 is, for example, a FOUP containing a semiconductor wafer, but the type of the article 18 is arbitrary.
- the overhead traveling vehicle 12 may include a device for laterally feeding the hoist 14, a device for rotating the hoist 14 around a vertical axis, and the like.
- An overhead traveling vehicle system is constituted by the track 10 and the overhead traveling vehicle 12, and this system itself is known.
- the local track 20 is provided in the ceiling space of the passage where the load port 6 is not provided in the gap between the processing devices 4 and 4.
- One end of the local track 20 is directly below the track 10 of the overhead traveling vehicle 12, and the other end is in the gap between the processing devices 4 and 4.
- the one end may be extended so as to exceed the track 10 of the overhead traveling vehicle 12.
- the local track is composed of a pair of rails 20a and 20b, and the width of the gap 21 between the rails 20a and 20b is larger than the length of the article 18, and the article 18 has the gap 21 therebetween. It can pass vertically.
- the width of the gap 21 is determined along a direction perpendicular to the longitudinal direction of the rails 20a and 20b in the horizontal plane.
- Reference numeral 22 denotes a local carriage which reciprocates along the local track 20 and raises and lowers the elevator 23 shown in FIG. 2 by a suspension material (not shown) such as a belt, a wire, and a rope.
- a buffer 26 is provided directly below the local track 20, and a mounting position 26a immediately below the track 10 is set as a position where both the overhead traveling vehicle 12 and the local carriage 12 can access, that is, deliver goods. Only the local carriage 22 accesses the position.
- the local track 20, the local carriage 22, and the buffer 26 constitute a second transport system, which can be retrofitted to an existing overhead traveling vehicle system.
- Reference numeral 27 denotes a support that supports the local track 20 and the buffer 26.
- the local cart 22 is driven by, for example, a battery and is charged by the charging device 30 that also serves as the controller of the local cart 22.
- the charging device 30 also serving as a controller communicates with the controller 32 of the entire overhead traveling vehicle system 2 to receive an instruction
- the overhead traveling vehicle 12 also communicates with the controller 32 to receive an instruction.
- the local carriage 22 communicates with the charging device 30 and receives an instruction. Note that power may be supplied by non-contact power supply or the like without providing a battery in the local cart.
- the signal line and the power supply line to the charging device 30 are arranged along the support column 27, for example.
- the charging device 30 avoids the position where the overhead traveling vehicle 12 and the local track 20 cross, that is, the upper portion of the mounting position 26a, and charging of the local carriage 22 and access to the buffer 26 of the overhead traveling vehicle 12 do not interfere. Like that. This also applies to the modified examples of FIGS.
- FIG. 3 shows the structure of the local carriage 22, 34 is a traveling wheel, which is driven by a traveling motor 36, has a battery (not shown), and is charged by the charging device 30.
- Power supply to the battery may be, for example, non-contact power supply or contact charging using a connector or a charging coupler.
- Reference numeral 38 denotes a hoist that raises and lowers the elevator 23, and reference numeral 36 denotes a chuck that grips and releases the upper flange of the article 18.
- the local track 20 includes two rails 20a and 20b, but is not limited to this. Such an example is shown in FIG. 4, and the same reference numerals as those in the embodiment denote the same components.
- Reference numeral 44 denotes a new local track, which is arranged below the track 10 so as to avoid a position immediately below the track 10, and 42 is a new local carriage.
- the local carriage 62 travels while being supported on the local track 44 by guide rollers 45 to 47, and is otherwise the same as the embodiment of FIGS.
- the buffer 50 delivers the article 18 to and from the overhead traveling vehicle 12 using the placement position 51, and can store, for example, one article 18 in the placement position 52. Note that, as indicated by a chain line in FIG. 5, three or more articles 18 may be placed.
- the lifting / lowering amount of the article 18 when delivering the article 18 to and from the buffer 50 can be minimized, and delivery can be performed at high speed.
- the placement position 51 is first, and the placement position 52 is later.
- the buffer 60 includes two types of placement positions 61 a, 61 b, 62 having different height levels, and the height level between the placement surface of the placement positions 61 a, 61 b and the local carriage 22.
- the difference is more than one article and less than two articles, and the height level difference between the placement surface of the placement position 62 and the local carriage 22 is more than two articles. Therefore, when the article 18 is placed on the placement positions 61a, 61b, and 62, the local carriage 22 that supports the article 18 can pass over the placement position 62, but the placement positions 61a and 61b are not. I cannot enter.
- each of the placement positions 61 a and 61 b can place one article 18, and the placement position 62 can place two articles 18, for example, but only one article 18 can be placed at the placement position 62. Alternatively, three or more may be placed.
- the amount of elevation when the placement positions 61 a and 61 b and the article 18 are delivered is minimized, and the number of articles 18 that can be stored can be increased by adding the placement positions 62.
- the first overhead traveling vehicle 12 conveys the first article 18 required by the load port 6 to the mounting position 26 a of the buffer 26 in advance.
- the local carriage 22 conveys the first article 18 from the placement position 26 a and the like to other placement positions of the buffers 26, 50, 60.
- the local carriage 22 Prior to the time when the load port 6 needs the article 18, the local carriage 22 returns the article 18 to the mounting position 26a accessible by the overhead traveling vehicle 12 according to an instruction from the controller 32.
- the second overhead traveling vehicle 12 picks up the article 18 and transfers it to the load port 6.
- the third overhead traveling vehicle 12 transports the article to a placement position 26a such as a buffer 26 as shown in FIG.
- the local carriage 22 conveys the article 18 from the placement position 26a or the like to another placement position of the buffers 26, 50, 60.
- the local carriage 22 places the article 18 accessible to the overhead traveling vehicle 12 according to an instruction from the controller 32. Return to position 26a or the like.
- the fourth overhead traveling vehicle 12 picks up the article 18 and conveys it to the next processing device 4.
- the following effects can be obtained. 1) Space can be saved because the buffers 26, 50, and 60 can be arranged using the gaps between the processing devices 4 and the entire transport system 2 can be arranged in an overhead space. 2) Using the gap 21 between the traveling rails 20a, 20b of the local track 20, both the overhead traveling vehicle 12 and the local carriage 22 can access the mounting position 26a. 3) The buffers 26, 50, 60 have a simple straight structure, and the local carriage 22 may be a simple carriage that reciprocates on the short local track 20. 4) In the case of the buffer 26, a large number of articles 18 can be stored. 5) In the case of the buffer 50, the lifting / lowering amount of the article 18 can be minimized, and transfer can be performed in a short time.
- the lifting / lowering amount of the article 18 can be reduced while increasing the number of articles 18 stored.
- the article 18 can be transferred to the placement positions 51 and 61a with a short lifting amount by both the overhead traveling vehicle 12 and the local carriage 22.
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Abstract
Description
この発明の追加の課題は、バッファとの間で物品を受け渡しする際の昇降量をできる限り小さくすることにある。
前記天井走行車の軌道よりも低い高さレベルに配置され、少なくとも前記天井走行車の軌道の直下まで延び、かつ前記天井走行車の軌道と平面視で直角な方向を向くローカル軌道と、
前記ローカル軌道に沿って走行し、かつ物品を昇降させるホイストを備えるローカル台車と、
前記ローカル軌道の下部に、前記ローカル台車との間で物品を受け渡し自在に配置され、かつ少なくとも前記天井走行車の軌道の直下まで延びるバッファ、
とを備えることを特徴とする。
処理装置のロードポートの上部を通過する天井走行車の軌道と、
前記天井走行車の軌道に沿って走行し、かつホイストを備える複数の天井走行車と、
前記天井走行車の軌道よりも低い高さレベルに配置され、少なくとも前記天井走行車の軌道の直下まで延び、かつ前記天井走行車の軌道と平面視で直角な方向を向くローカル軌道と、
前記ローカル軌道に沿って走行し、かつ物品を昇降させるホイストを備えるローカル台車と、
前記ローカル軌道の下部に、前記ローカル台車との間で物品を受け渡し自在に配置され、かつ少なくとも前記天井走行車の軌道の直下まで延びるバッファ、
とが設けられ、
ロードポートへ第1の物品を荷下ろしするために、
第1の物品を、前記バッファの天井走行車の軌道の直下の第1の位置へ、第1の天井走行車が荷下ろしするステップと、
次いで、前記第1の位置から前記バッファの第2の位置へ、第1の物品を前記ローカル台車が搬送するステップと、
次いで、前記第2の位置から前記第1の位置へ、第1の物品を前記ローカル台車が搬送するステップと、
次いで、前記第1の位置から第1の物品を第2の天井走行車が荷積みし、ロードポートへ荷下ろしするステップとを実行し、
ロードポートから第2の物品を搬出するために、
ロードポートから第3の天井走行車が第2の物品を荷積みし、前記第1の位置へ荷下ろしするステップと、
次いで、前記第1の位置から前記バッファの第2の位置へ、第2の物品を前記ローカル台車が搬送するステップと、
次いで、前記第2の位置から前記第1の位置へ、第2の物品を前記ローカル台車が搬送するステップと、
次いで、前記第1の位置から第2の物品を第4の天井走行車が搬出するステップとを実行する。
ローカル軌道と、
前記ローカル軌道に沿って走行し、かつ物品を昇降させるホイストを備えるローカル台車と、
前記ローカル軌道の下部に、前記ローカル台車との間で物品を受け渡し自在に配置されているバッファ、とを備え、
前記ローカル軌道と前記バッファとが、前記天井走行車の軌道の直下まで延びるように配置されていることを特徴とする。
第1の種類の載置位置に物品が載置されている際に、載置された物品の上部に、他の物品を支持するローカル台車は進入できないが、物品を支持しないローカル台車は進入でき、
第2の種類の載置位置に物品が載置されている際に、載置された物品の上部に、他の物品を支持するローカル台車及び他の物品を支持しないローカル台車が進入できるようにされ、さらに第1の種類の載置位置は天井走行車の軌道の直下の位置を含む。このようにすると、第1の種類の載置位置との間でローカル台車が物品を受け渡しする場合、昇降量が小さく、また天井走行車もバッファとの間で小さな昇降量で物品を受け渡しできる。さらに第2の種類の載置位置は多数設けることができるので、物品を保管する個数を増すことができる。
1) 処理装置4間の隙間を利用してバッファ26,50,60を配置でき、また搬送システム2を全て頭上スペースに配置できるので、省スペースである。
2) ローカル軌道20の走行レール20a,b間の間隙21を用いて、載置位置26a等へ天井走行車12もローカル台車22もアクセスできる。
3) バッファ26,50,60は直線状の簡単な構造で、ローカル台車22も短いローカル軌道20を往復動する簡単な台車でよい。
4) バッファ26の場合、多数の物品18を保管できる。
5) バッファ50の場合、物品18の昇降量を最小にし、短時間で移載できる。
6) バッファ60の場合、物品18の保管個数を増しながら、物品18の昇降量を小さくできる。
7) バッファ50,60の場合、載置位置51,61aへは、天井走行車12もローカル台車22も短い昇降量で物品18を移載できる。
11 支柱 12 天井走行車 14 ホイスト 16 昇降台
18 物品 20 ローカル軌道 20a,b レール
21 間隙 22 ローカル台車 23 昇降台 26 バッファ
26a 載置位置 27 支柱 30 充電装置
32 コントローラ 34 走行車輪 36 走行モータ
38 ホイスト 40 チャック 42 ローカル台車
44 ローカル軌道 45~47 ガイドローラ
50,60 バッファ 51,52 載置位置
61a,61b,62 載置位置
Claims (8)
- 複数の処理装置間で物品を搬送するため、処理装置のロードポートの上部を通過する天井走行車の軌道と、前記天井走行車の軌道に沿って走行し、かつホイストを備える天井走行車とを備える搬送システムであって、
前記天井走行車の軌道よりも低い高さレベルに配置され、少なくとも前記天井走行車の軌道の直下まで延び、かつ前記天井走行車の軌道と平面視で直角な方向を向くローカル軌道と、
前記ローカル軌道に沿って走行し、かつ物品を昇降させるホイストを備えるローカル台車と、
前記ローカル軌道の下部に、前記ローカル台車との間で物品を受け渡し自在に配置され、かつ少なくとも前記天井走行車の軌道の直下まで延びるバッファ、
とを備えることを特徴とする、搬送システム。 - 前記ローカル軌道と前記バッファとの一端とが前記天井走行車の軌道の直下に配置され、 前記ローカル軌道と前記バッファとの他端とが処理装置間の隙間に配置されることを特徴とする、請求項1の搬送システム。
- 前記バッファ上に物品が載置されている際に、載置された物品の上部に他の物品を支持するローカル台車が進入できるように、前記バッファと前記ローカル軌道との高さレベルの差が定められていることを特徴とする、請求項1の搬送システム。
- 前記バッファ上に物品が載置されている際に、載置された物品の上部に他の物品を支持するローカル台車は進入できず、他の物品を支持しないローカル台車は進入できるように、前記バッファと前記ローカル軌道との高さレベルの差が定められていることを特徴とする、請求項1の搬送システム。
- 前記バッファは物品の載置位置を高さレベルを異ならせて2種類備え、
第1の種類の載置位置に物品が載置されている際に、載置された物品の上部に、他の物品を支持するローカル台車は進入できないが、物品を支持しないローカル台車は進入でき、
第2の種類の載置位置に物品が載置されている際に、載置された物品の上部に、他の物品を支持するローカル台車及び他の物品を支持しないローカル台車が進入できるようにされ、
さらに第1の種類の載置位置は天井走行車の軌道の直下の位置を含む、ことを特徴とする、請求項1の搬送システム。 - 前記ローカル軌道は左右一対のレールから成り、かつレールの長手方向に水平面内で直角な方向での物品の長さよりも、前記一対のレール間の間隙が大きくされていることを特徴とする、請求項1の搬送システム。
- 既設の天井走行車システムでの天井走行車の軌道よりも低い高さレベルに、天井走行車の軌道と平面視で直角な方向に後付けされる搬送システムであって、
ローカル軌道と、
前記ローカル軌道に沿って走行し、かつ物品を昇降させるホイストを備えるローカル台車と、
前記ローカル軌道の下部に、前記ローカル台車との間で物品を受け渡し自在に配置されているバッファ、とを備え、
前記ローカル軌道と前記バッファとが、前記天井走行車の軌道の直下まで延びるように配置されていることを特徴とする、搬送システム。 - 天井走行車とローカル台車とにより複数の処理装置間で物品を搬送する方法であって、
処理装置のロードポートの上部を通過する天井走行車の軌道と、
前記天井走行車の軌道に沿って走行し、かつホイストを備える複数の天井走行車と、
前記天井走行車の軌道よりも低い高さレベルに配置され、少なくとも前記天井走行車の軌道の直下まで延び、かつ前記天井走行車の軌道と平面視で直角な方向を向くローカル軌道と、
前記ローカル軌道に沿って走行し、かつ物品を昇降させるホイストを備えるローカル台車と、
前記ローカル軌道の下部に、前記ローカル台車との間で物品を受け渡し自在に配置され、かつ少なくとも前記天井走行車の軌道の直下まで延びるバッファ、
とが設けられ、
第1のロードポート側から第2のロードポート側へ物品を搬送するために、
第1のロードポート側から第1の天井走行車が物品を荷積みし、前記バッファの天井走行車の軌道の直下の第1の位置へ、第1の天井走行車が物品を荷下ろしするステップと、
次いで、前記第1の位置から前記バッファの第2の位置へ、物品を前記ローカル台車が搬送するステップと、
次いで、前記第2の位置から前記第1の位置へ、物品を前記ローカル台車が搬送するステップと、
次いで、前記第1の位置から物品を第2の天井走行車が搬出し、第2のロードポート側へ荷下ろしするステップ、とを実行することを特徴とする、搬送方法。
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TWI513641B (zh) | 2015-12-21 |
US9187260B2 (en) | 2015-11-17 |
EP2636614A4 (en) | 2017-02-22 |
JP5648983B2 (ja) | 2015-01-07 |
US20130199892A1 (en) | 2013-08-08 |
EP2636614A1 (en) | 2013-09-11 |
CN103201198A (zh) | 2013-07-10 |
TW201233612A (en) | 2012-08-16 |
CN103201198B (zh) | 2015-03-11 |
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