JP2890350B2 - Overhead traveling car - Google Patents
Overhead traveling carInfo
- Publication number
- JP2890350B2 JP2890350B2 JP4312793A JP31279392A JP2890350B2 JP 2890350 B2 JP2890350 B2 JP 2890350B2 JP 4312793 A JP4312793 A JP 4312793A JP 31279392 A JP31279392 A JP 31279392A JP 2890350 B2 JP2890350 B2 JP 2890350B2
- Authority
- JP
- Japan
- Prior art keywords
- overhead traveling
- chucking
- elevator
- level
- traveling vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、昇降台を昇降させて地
上との間で搬送物の受け渡しを行い、搬送物を保持して
走行する天井走行車に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overhead traveling vehicle that moves a lifting table up and down to transfer a conveyed article to and from the ground, and holds the conveyed article to travel.
【０００２】[0002]
【従来の技術】天井から吊下されたレールに沿って走行
し、地上のステーションとの間で搬送物の受け渡しを行
う天井走行車が利用されている。天井走行車は地上のス
テーションの直上で停止し、昇降台を下降させ、昇降台
に備えられた搬送物保持機構により搬送物の受け渡しを
行う。2. Description of the Related Art An overhead traveling vehicle is used which travels along a rail suspended from a ceiling and transfers a conveyed product to and from a station on the ground. The overhead traveling vehicle stops just above the station on the ground, lowers the elevator, and transfers the articles by the article holding mechanism provided on the elevator.
【０００３】[0003]
【発明が解決しようとする課題】天井走行車が複数種類
の搬送物を取り扱う場合、搬送物のサイズが異なるため
に、搬送物受け取り時に昇降台の下降を停止させるレベ
ルが異なる場合がある。このような場合には天井走行車
には地上のステーションに置かれている搬送物の種類が
送信され、天井走行車の制御装置が搬送物の種類により
昇降台を停止させるレベルを選択的に決定していた。こ
のような方法によると、天井走行車の制御が複雑にな
り、データの書き換え等に手間がかかっていた。When an overhead traveling vehicle handles a plurality of types of conveyed products, the level at which the elevating platform stops lowering when receiving the conveyed products may be different because the sizes of the conveyed products are different. In such a case, the type of the conveyed object placed on the ground station is transmitted to the overhead traveling vehicle, and the control device of the overhead traveling vehicle selectively determines the level at which the elevator is stopped according to the type of the conveyed object. Was. According to such a method, the control of the overhead traveling vehicle becomes complicated, and it takes time and effort to rewrite data.
【０００４】よって本発明の目的は、複雑な制御構造を
要することなく、複数種類のサイズの異なる搬送物を取
り扱うことのできる天井走行車を提供することにある。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an overhead traveling vehicle capable of handling a plurality of types of conveyed articles without a complicated control structure.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明は、昇降台の下降中に一対のチャッキング爪が
搬送物上部の被把持部を把持可能なチャッキングレベル
に達した時に被把持部を検知するように配置された被把
持部検知手段と、被把持部検知手段が被把持部を検知し
た時に昇降台の下降を停止させ、検知しない時には取扱
い搬送物のうち最も低いチャッキングレベルまで昇降台
を下降させる昇降駆動手段とを備えて天井走行車を構成
した。In order to achieve the above-mentioned object, the present invention provides a method in which a pair of chucking claws reach a chucking level at which a gripped portion on an upper portion of a conveyed object can be gripped while the elevator is lowered. A grasped portion detection means arranged to detect a grasped portion, and a descent of the elevating platform is stopped when the grasped portion detection means detects the grasped portion. An overhead traveling vehicle is provided with a lifting drive means for lowering the lifting platform to the king level.
【０００６】[0006]
【作用】本発明は上記の構成としたので、次のような作
用を奏する。The present invention has the above-described structure, and has the following effects.
【０００７】本発明に係る天井走行車においては、天井
走行車が走行停止して昇降台を下降させる場合に、被把
持部検知手段が被把持部を検知しない時には取り扱い搬
送物のうち最も低いチャッキングレベルまで昇降台を下
降させる。これにより最低のチャッキングレベルを有す
る搬送物のチャッキングを行うことができる。被把持部
検知手段が被把持部を検知した時には昇降台の下降を停
止させる。昇降台の下降中に被把持部検知手段が被把持
部を検知した時にはチャッキング爪が搬送物上部の被把
持部を把持可能であるチャッキングレベルに達している
ので、このレベルで最低のチャッキングレベルを有する
搬送物以外の搬送物のチャッキングを行うことができ
る。In the overhead traveling vehicle according to the present invention, when the overhead traveling vehicle stops traveling and lowers the elevating platform, if the gripped portion detecting means does not detect the gripped portion, the lowest chucked transported material among the handled transported objects. Lower the platform to the king level. Thereby, chucking of the conveyed object having the lowest chucking level can be performed. When the gripped portion detecting means detects the gripped portion, the lowering of the elevator is stopped. Since the chucking claw has reached the chucking level at which the gripper at the upper part of the conveyed object can be gripped when the gripper detection means detects the gripper while the lift platform is descending, the chucking at this level is the lowest. It is possible to chuck a transported product other than the transported product having the king level.
【０００８】[0008]
【実施例】以下図示の実施例について説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in the drawings will be described below.
【０００９】図１は、本発明に係る天井走行車の一実施
例の昇降台部分を示す正面図である。FIG. 1 is a front view showing an elevator unit of an embodiment of an overhead traveling vehicle according to the present invention.
【００１０】同図において、昇降台１はベルト２、２を
図示しない天井走行車に備えられた昇降機構により巻き
上げ、巻き下ろすことにより昇降する。昇降台１の下面
には、相互に近接離反するように移動する一対のチャッ
キング爪３、３が備えられている。ガイド４、４は、地
上のステーションに立設されたガイドポール５、５にそ
れぞれガイドされることにより、昇降台１の水平方向の
位置を調整する。In FIG. 1, an elevator 1 is raised and lowered by lifting and lowering belts 2 and 2 by a lifting mechanism provided on an overhead traveling vehicle (not shown). A pair of chucking claws 3 and 3 are provided on the lower surface of the lift 1 so as to move toward and away from each other. The guides 4, 4 are respectively guided by guide poles 5, 5 erected at a station on the ground, thereby adjusting the horizontal position of the elevator 1.
【００１１】地上のステーション上には搬送物である異
なるサイズのウエハカセット６ａもしくは６ｂが載置さ
れる。各ウエハカセット６ａ、６ｂは、その上部にそれ
ぞれ一対の被把持部７ａ、７ｂを備えている。各被把持
部７ａ、７ｂはチャッキング爪３、３に対応するサイズ
及び形状を有する。ウエハカセット６ａは、本実施例の
天井走行車が取り扱う最もサイズの小さな搬送物であ
り、被把持部７ａは他の搬送物の被把持部に比較して最
も低いレベルにあるものとする。On the ground station, wafer cassettes 6a or 6b of different sizes, which are to be transported, are placed. Each of the wafer cassettes 6a and 6b is provided with a pair of gripped portions 7a and 7b at an upper portion thereof. Each of the gripped portions 7a, 7b has a size and a shape corresponding to the chucking claws 3, 3, respectively. The wafer cassette 6a is the smallest transported object handled by the overhead traveling vehicle of the present embodiment, and the gripped portion 7a is at the lowest level as compared with the gripped portions of other transported objects.
【００１２】チャッキング爪３の一方には発光器８が取
り付けられており、他方には受光器９が取り付けられて
おり、発光器８から発せられた光軸Ｌを受光器９が受光
できるようになっている。受光器９は昇降台１の昇降機
構に接続されている。発光器８及び受光器９は、各チャ
ッキング爪３、３の水平突出部分のやや上方に取り付け
られており、チャッキング爪３、３が被把持部７を把持
可能な高さにある時、光軸Ｌが被把持部７により遮蔽さ
れるようになっている。A light emitting device 8 is mounted on one of the chucking claws 3 and a light receiving device 9 is mounted on the other, so that the light receiving device 9 can receive the optical axis L emitted from the light emitting device 8. It has become. The light receiver 9 is connected to a lifting mechanism of the lifting table 1. The light emitting device 8 and the light receiving device 9 are mounted slightly above the horizontally projecting portions of the chucking claws 3, 3. When the chucking claws 3, 3 are at a height capable of gripping the gripped portion 7, The optical axis L is shielded by the gripped portion 7.
【００１３】次に本実施例の作用について説明する。天
井走行車は搬送物を受け取るためにステーションの直上
に停止後、駆動機構を作動させて昇降台１を下降させ
る。昇降台１はガイド４、４及びガイドポール５、５に
案内されつつ下降する。Next, the operation of this embodiment will be described. The overhead traveling vehicle stops right above the station to receive the conveyed product, and then operates the drive mechanism to lower the elevator 1. The lift 1 descends while being guided by the guides 4 and 4 and the guide poles 5 and 5.
【００１４】このとき発光器８は光軸Ｌを発し、受光器
９は光軸Ｌを受光している。また、チャッキング爪３、
３は相互に開いている。ステーションに小さいウエハカ
セット６ａが載置されている場合、発光器８の発する光
軸Ｌは遮られることなく、昇降台１は予め設定されてい
る最も低いレベルまで下降して停止する。このレベルは
ウエハカセット６ａに対応するレベルである。そしてチ
ャッキング爪３、３を３ａ、３ａのように閉じ、昇降台
１を上昇させることによりウエハカセット６ａを保持す
る。At this time, the light emitting device 8 emits the optical axis L, and the light receiving device 9 receives the optical axis L. Also, chucking claws 3,
3 are mutually open. When the small wafer cassette 6a is placed in the station, the optical axis L emitted from the light emitting device 8 is not interrupted, and the elevator 1 descends to the preset lowest level and stops. This level is a level corresponding to the wafer cassette 6a. Then, the chucking claws 3, 3 are closed like 3a, 3a, and the lifting table 1 is raised to hold the wafer cassette 6a.
【００１５】ステーションに大きいウエハカセット６ｂ
が載置されている場合、昇降台１を下降させていくと、
予め設定されている最も低いレベルに達する以前に、光
軸Ｌが被把持部７ｂにより遮られる。光軸Ｌが遮断され
た時に昇降台１の昇降機構は昇降台１の下降を停止させ
ると、チャッキング爪３ｂ、３ｂはウエハカセット６ｂ
の被把持部７ｂをチャックできる高さに位置する。この
位置でチャッキング爪３、３を閉め、昇降台１を上昇さ
せると、ウエハカセット６ｂを保持することができる。A large wafer cassette 6b is set in the station.
When is placed, when the elevator 1 is lowered,
Before reaching the preset lowest level, the optical axis L is blocked by the gripped portion 7b. When the elevating mechanism of the elevating platform 1 stops the lowering of the elevating platform 1 when the optical axis L is cut off, the chucking claws 3b, 3b are moved to the wafer cassette 6b.
Is located at a height where the gripped portion 7b can be chucked. When the chucking claws 3, 3 are closed at this position and the elevating platform 1 is raised, the wafer cassette 6b can be held.
【００１６】以上のように本実施例の天井走行車による
と、複雑な制御機構を必要とすることなく昇降台の停止
位置を決定し、異なるサイズの搬送物に対応することが
できる。As described above, according to the overhead traveling vehicle of this embodiment, it is possible to determine the stop position of the lift platform without requiring a complicated control mechanism, and to cope with conveyed objects of different sizes.
【００１７】以上本発明の実施例について説明したが、
本発明は上記実施例に限定されるものではなく、本発明
の要旨の範囲内において適宜変形実施可能であることは
言うまでもない。The embodiments of the present invention have been described above.
It is needless to say that the present invention is not limited to the above-described embodiments, and can be appropriately modified and implemented within the scope of the present invention.
【００１８】[0018]
【発明の効果】以上のように、本発明に係る天井走行車
によれば、複雑な制御機構を要することなく、複数種類
のサイズの異なる搬送物に対応するように、昇降台の停
止位置を決定することができる。As described above, according to the overhead traveling vehicle according to the present invention, the stop position of the lift platform can be adjusted so as to correspond to a plurality of types of conveyed objects without a complicated control mechanism. Can be determined.
【図１】図１は、本発明に係る天井走行車の一実施例の
昇降台部分を示す正面図である。FIG. 1 is a front view showing an elevator unit of an embodiment of an overhead traveling vehicle according to the present invention.
【符号の説明】 １ 昇降台 ２、２ ベルト ３、３ チャッキング爪 ６ａ、６ｂ ウエハカセット ７ａ、７ｂ 被把持部 ８ 発光器 ９ 受光器 Ｌ 光軸[Description of Signs] 1 Lifting platform 2, 2 Belt 3, 3 Chucking claw 6a, 6b Wafer cassette 7a, 7b Gripped portion 8 Light emitting device 9 Light receiving device L Optical axis
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B66C 13/ -15/06 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) B66C 13 / -15/06
Claims (1)
が搬送物上部の被把持部を把持可能なチャッキングレベ
ルに達した時に被把持部を検知するように配置された被
把持部検知手段と、被把持部検知手段が被把持部を検知
した時に昇降台の下降を停止させ、検知しない時には取
扱い搬送物のうち最も低いチャッキングレベルまで昇降
台を下降させる昇降駆動手段とを備えた天井走行車。1. A grasped portion detection device arranged to detect a grasped portion when a pair of chucking claws reach a chucking level at which a grasped portion above a conveyed object can be grasped while the lifting platform is lowered. And lifting drive means for stopping the lowering of the elevator when the gripper detection unit detects the gripper, and lowering the elevator to the lowest chucking level of the handling conveyed when not detecting. Overhead traveling car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4312793A JP2890350B2 (en) | 1992-10-28 | 1992-10-28 | Overhead traveling car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4312793A JP2890350B2 (en) | 1992-10-28 | 1992-10-28 | Overhead traveling car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06135685A JPH06135685A (en) | 1994-05-17 |
| JP2890350B2 true JP2890350B2 (en) | 1999-05-10 |
Family
ID=18033478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4312793A Expired - Lifetime JP2890350B2 (en) | 1992-10-28 | 1992-10-28 | Overhead traveling car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2890350B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4224784B2 (en) | 2003-07-18 | 2009-02-18 | 株式会社ダイフク | Gripping part raising and lowering transfer device |
| US20130025975A1 (en) | 2010-04-12 | 2013-01-31 | Otis Elevator Company | Retractable Stop for Low Overhead Elevators |
| KR20120003368A (en) * | 2010-07-02 | 2012-01-10 | 무라텍 오토메이션 가부시키가이샤 | Gripper device of overhead transportation vehicle and overhead transportation vehicle |
| KR101407413B1 (en) * | 2011-12-30 | 2014-06-19 | 주식회사 에스에프에이 | Cassette handling apparatus mask cassette supplying system |
| KR101746605B1 (en) * | 2016-03-10 | 2017-06-27 | 주식회사 신성이엔지 | System for transferring cassette |
-
1992
- 1992-10-28 JP JP4312793A patent/JP2890350B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06135685A (en) | 1994-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20150105229A (en) | Article support deviec | |
| JP6414134B2 (en) | Transport device | |
| WO2016027558A1 (en) | Transport device and transport method | |
| EP1845552A1 (en) | Transportation system and transportation method | |
| JP2890350B2 (en) | Overhead traveling car | |
| US20080075564A1 (en) | Container Carrying Equipment | |
| JP3198401B2 (en) | Wafer ring supply / return device | |
| JPH11228070A (en) | Overhead traveling vehicle | |
| US20230134312A1 (en) | Gripper device, conveyance vehicle, and conveyance method | |
| JPH08258965A (en) | Workpiece transferring device | |
| JPS6487424A (en) | Translocating device for workpiece | |
| JP7363686B2 (en) | Goods conveyance equipment | |
| JPH0462951A (en) | Wafer transfer apparatus | |
| JP2669221B2 (en) | Transport equipment using transport containers | |
| WO2023084940A1 (en) | Overhead conveying vehicle | |
| JP3170892B2 (en) | Handling of plate-like objects | |
| JPH10273233A (en) | Hand seating detecting mechanism for cargo gear | |
| JPS591674B2 (en) | Automatic crane control method and automatic crane device | |
| JP3288789B2 (en) | How to transfer green tires | |
| JP3131728B2 (en) | Conveyed goods stacking device | |
| JPH0636026Y2 (en) | Plate transfer machine | |
| JPH0325014B2 (en) | ||
| JPH01281221A (en) | Tray feeding device | |
| JPH11310385A (en) | Overhead traveling vehicle | |
| JPH11292288A (en) | Tire release device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |