JPH11130234A - Overhead conveying device - Google Patents

Overhead conveying device

Info

Publication number
JPH11130234A
JPH11130234A JP29435997A JP29435997A JPH11130234A JP H11130234 A JPH11130234 A JP H11130234A JP 29435997 A JP29435997 A JP 29435997A JP 29435997 A JP29435997 A JP 29435997A JP H11130234 A JPH11130234 A JP H11130234A
Authority
JP
Japan
Prior art keywords
carriage
reflector
light
track
surface
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.)
Pending
Application number
JP29435997A
Other languages
Japanese (ja)
Inventor
Hiroki Odajima
広樹 小田島
Original Assignee
Nec Corp
日本電気株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nec Corp, 日本電気株式会社 filed Critical Nec Corp
Priority to JP29435997A priority Critical patent/JPH11130234A/en
Publication of JPH11130234A publication Critical patent/JPH11130234A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To suppress an increase in conveyance time by avoiding a collision of carriages at a curve of the track of an overhead conveying device and a jam of carriages before the curve and shortening the passage time at the curve.
SOLUTION: A track 1, which is constructed to enclose the body part or traveling drive part of carriages 6, is provided at the internal surface of its outer wall at a curve with a reflector 2 having a mirror-surfaced light-reflecting surface. The carriage 6 is provided with a projector 8a and a photoreceptor 8b at its front face in the direction of travel and with a reflector 7 at its rear face. The light projected from a following carriage 6a reflects on the reflecting surface and reaches the reflector 7 of a preceding carriage 6b, and the reflected light back from this reflector 7 is detected by the photoreceptor 8b for use in inter-carriage distance maintenance.
COPYRIGHT: (C)1999,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、室内の天井から懸垂されて設置された軌道上を走行し、製品を載せて無人搬送する搬送台車を備えた天井搬送装置に関する。 The present invention relates to is to travel on a track which is installed is suspended from the ceiling of the room, to the ceiling transport apparatus having a transport carriage for automatic guided put the product.

【0002】 [0002]

【従来の技術】従来、工場や倉庫等の室内で製品を無人搬送する装置の一つとして、天井下に懸垂設置された軌道上を走行する天井搬送装置があり、一般的にこの搬送装置は、軌道上に複数の搬送台車を入線させ走行させるようになっている。 Conventionally, as one of a device for the automatic guided products in a room, such as factories and warehouses, ceilings transfer device for traveling the suspended installation trajectory above the ceiling under generally the transport apparatus , and is adapted to travel by incoming line a plurality of conveying carriages on the track. 搬送台車はリニアモータを駆動源とし、軌道は単線で同一平面上を環状に構成されることが多い。 Conveying carriage a linear motor as a driving source, the trajectory is often constructed on the same plane in an annular single wire. そのため、これらの搬送台車は、必然的に一方向に走行することになる。 Therefore, these conveyance carriage would inevitably run in one direction. また、これらの搬送台車は、決められた荷積み、荷下ろし位置において、地上に設置された搬送物の保管装置などとの間で移載作業を行うために停止することがある。 These transport truck, stacked-determined load, the unloading position, may stop in order to perform the transfer operations to and from such storage device of the installed conveyed on the ground. このため、先行の搬送台車が移載作業で停止しているときに、後続の搬送台車は、移載作業中の搬送台車に追突しないように移載作業中の搬送台車の手前で停止する必要がある。 Therefore, when the preceding transport trolley has stopped at the transfer operation, the subsequent conveyance carriage is necessary to stop short of the conveyance carriage in transferring operations to avoid rear-end in the conveyance carriage in the transfer operations there is.

【0003】特に、軌道が屈曲している場合、図6の軌道屈曲部の平面図およびそのA−A断面図である図7に示すように、屈曲した軌道部での追突を避けるために、 In particular, if the trajectory is bent, as shown in FIG. 7 is a plan view and a A-A cross-sectional view of the track bend of FIG. 6, in order to avoid collision with the bent trajectory part,
屈曲部の手前の軌道1上に、屈曲部があることを知らせるマーカ5を設置し、搬送台車6a側にこのマーカ5を認識するマーカ検出器10を設けている。 Front on track 1 of the bent portion, and installing a marker 5 to notify that there is a bent portion is provided which recognizes the marker detector 10 of the marker 5 to the transport carriage 6a side. マーカ5は受動的なものであり、例えば電磁式のコイルなどを用いる。 Marker 5 are merely passive, for example, is used, such as electromagnetic coils. この屈曲した軌道部分に、先行する搬送台車6bが存在する場合にはこのコイルに電流を流し、磁界が発生している場合には先行する搬送台車6bが存在することを検知するようになっている。 This bent trajectory part, when the conveyance carriage 6b the preceding exists a current flows in the coil, when a magnetic field is generated so as to detect that the conveyance carriage 6b preceding exists there. このように、コイルに磁界が発生している場合は、この磁気を後続の搬送台車6 Thus, if the magnetic field in the coil is generated, transported the magnetic subsequent carriage 6
a側のマーカ検出器10で検知し、搬送台車6aは停止する。 Detected by the marker detector 10 of a side, the conveyance carriage 6a is stopped. そして、先行の搬送台車6bが屈曲部を通過した時点でコイルの電流を切る。 Then, turn off the current of the coil when the preceding transport trolley 6b passes through the bent portion. 後続の搬送台車6aは、屈曲部内に他の搬送台車は存在しないということを認識し、発進走行を開始する。 Subsequent conveyance carriage 6a recognizes that other transport carriage the bending portion does not exist, to initiate the start running.

【0004】また、追突防止の他の手段として、後続の搬送台車を先行の搬送台車の手前で停止させるために、 Further, as another means of collision prevention, in order to stop the subsequent conveyance carriage in front of the preceding conveying carriage,
搬送台車の前方部に設けられた投光器から投光し、停止している搬送台車の後方部に設けられた反射器に反射して回帰してきた光を、ほぼ投光器と同じ位置に設けられた受光器で検出し、搬送台車の前方に他の搬送台車が存在することを認識して停止する手段も用いられている。 Projecting light from the light projector provided at the front portion of the transporting carriage, the light which has been regression reflects a reflector provided on the rear portion of the conveying carriage is stopped, provided at the same position almost Emitter Receiver detected in vessels are also used means for stopping recognize that other transport vehicle in front of the transporting carriage is present.
この光検出器を備えた搬送台車の屈曲部における追突防止手段は、実開平5−33208号公報に示すように、 Collision prevention means in the bent portion of the conveyance carriage having the photodetector, as shown in the real-Open 5-33208, JP-
屈曲部内を先行している搬送台車に後続の搬送台車が追突しないように、先行搬送台車の後方部に後続搬送台車から照射された光を多方向に拡散反射する反射装置を設け、この拡散反射光を後続搬送台車の前方部に設けられた検出装置で検出することによって、先行搬送台車の存在を認識するようになっている。 As subsequent conveyance carriage in the transport carriage which precedes the bending portion does not rear-end, a reflective device for diffusing and reflecting the irradiation light in multiple directions from the subsequent transport carriage to the rear portion of the preceding conveying carriage, the diffuse reflection by detecting the detection device provided light to the front portion of the trailing transport carriage is adapted to recognize the presence of the preceding conveying carriage.

【0005】 [0005]

【発明が解決しようとする課題】上述した従来の光検出手段を備えた天井搬送装置においては、天井から軌道を懸垂設置するために吊り棒を多数設置したり、搬送台車からの発塵防止のために軌道そのもので搬送台車を覆ってしまうことがある。 In ceiling transport apparatus provided with a conventional optical detecting means described above to [0005] are, or installing a large number of hanging rods for suspending installing the trajectory from the ceiling, the dust prevention from the transport carriage may sometimes covers the transport carriage in the track itself for. このような場合、走行部の軌道が屈曲していると、搬送台車の前方から投光した光は、多少の広がりはあるものの直線的に進む。 In this case, the trajectory of the traveling portion is bent, the light projected from the front of the transport carriage, some spread linearly in one thing proceeds. 従って、搬送台車の直線前方に他の搬送台車が存在しないかぎり、この前方に存在する搬送台車を検知し認識することはできない。 Therefore, as long as the other transport carriage in a linear front of the transporting bogie is absent, it is impossible to recognize and detect the conveying carriage which is present in this front. すなわち、屈曲部においては、搬送台車のすぐ近くに先行する搬送台車が存在しても認識できず、後続の搬送台車は走行を継続してしまう。 That is, in the bent portion, can not be recognized even if there is transport carriage preceding immediate vicinity of the conveyance carriage, the subsequent conveyance carriage would continue to travel. 後続の搬送台車は、先行する搬送台車に極めて接近した時点で初めて先行している搬送台車を認識し、停止動作に移行しても先行搬送台車との距離が短いため追突が発生する。 Subsequent transport vehicle recognizes the conveying carriage which is first preceded by the time in close proximity to the transport carriage the preceding, collision is short distance to the preceding conveying carriage also moves to stop behavior. 通常、搬送台車の停止距離は0.5mから1m程度に設定されているので、それ以上接近すると追突の恐れがある。 Usually, the stopping distance of the conveying carriage which are set to approximately 1m from 0.5 m, there is a risk of collision with the approach more.

【0006】また、一般的に屈曲部では搬送台車に遠心力が発生し、積載している搬送物に振動などの悪影響を及ぼすため、走行速度を低く押さえ、直線軌道部の走行速度のおよそ4分の1から5分の1に設定している。 [0006] Generally, in the bent portion centrifugal force is generated in the transport carriage, for an adverse effect such as vibration in the conveying object that is loaded, kept low running speed, approximately 4 running speed of the linear track portion It is set from minute 1 to 1 of 5 minutes. このため、マーカによる検出方式の場合は、屈曲部には1 Therefore, if the detection method by the marker, the bent portion 1
台の搬送台車しか進入することができないばかりでなく、通過に時間を要するため、後続の搬送台車が屈曲部の手前で渋滞するという事態が発生する。 Not only can only enter the platform of the transport carriage, it takes time to pass, situation that subsequent conveyance carriage is congestion in front of the bent portion occur. つまり、このことは搬送時間の増加を意味しており、搬送効率の低下につながるものである。 In other words, this is means an increase of the transport time, but that leads to a decrease in conveyance efficiency. 本発明は、軌道屈曲部での搬送台車の渋滞をなくし、搬送時間の増加を押さえ、搬送効率の向上を図ることを目的としている。 The present invention eliminates congestion of the transport carriage at the track bent portion, pressing the increased transportation time, aims at improving the conveying efficiency.

【0007】 [0007]

【課題を解決するための手段】本発明は、室内の天井から懸垂されて設置された軌道と、この軌道上を走行する搬送台車とを備えた天井搬送装置において、搬送台車の走行駆動部である本体部を覆い囲むように構成された軌道の屈曲部における外側壁の内面を鏡面化して光の反射面とし、搬送台車は進行方向前面に投光器と受光器を、 The present invention SUMMARY OF THE INVENTION, in ceiling transport device equipped with installed is suspended from the ceiling of the room track, and a conveyance carriage which travels the orbit, the travel driving portion of the conveyance carriage a light reflection surface of the inner surface of the outer wall and mirror surface at the bent portion of the configuration trajectory so as to surround covers a certain body part, a light receiver transport vehicle and projector in the traveling direction front,
また後面に反射器を備え、後続の搬送台車からの投光が前記鏡面化した反射面で反射して先行する搬送台車の反射器に達し、この反射器から回帰する反射光を前記受光器で検知して車間距離を保つことを特徴とする天井搬送装置である。 Comprising a reflector on the rear face also projecting from subsequent conveyance carriage reaches the reflector conveyance carriage preceding reflected by the reflecting surface which is the mirror-in the light receiver light reflected to return from this reflector a ceiling transport device, characterized in that to keep the following distance detecting.

【0008】 [0008]

【発明の実施の形態】次に本発明の実施の形態について図面を参照して詳細に説明する。 For PREFERRED EMBODIMENTS Next embodiment of the present invention with reference to the accompanying drawings. 図1は本発明の第1の実施の形態を示す図で、軌道屈曲部の平面図、図2はそのB−B方向断面図、図3は搬送台車の底面図である。 Figure 1 is a diagram showing a first embodiment of the present invention, a plan view of the track bent portion, FIG. 2 is its direction B-B cross-sectional view, FIG. 3 is a bottom view of the transport vehicle.
軌道1は断面が四角形の筒状であり、搬送台車6の走行駆動部である本体部11を覆うような形で構成されている。 Track 1 in cross-section a square tubular shape, and is configured in such a way to cover the main body portion 11 is a traveling drive unit of the conveying carriage 6. 軌道1は平面的に設置され、屈曲部は一定の半径を有する円弧状に形成される。 Track 1 is installed in a plane, the bent portion is formed in an arc shape with a constant radius. この屈曲部を形成する軌道1の外側壁の内面に沿って、鏡面化した光反射面を有する反射材2が取り付けられている。 Along the inner surface of the outer wall of the track 1 which forms the bent portion, and the reflector 2 is mounted with a light reflecting surface which is mirror-finished.

【0009】搬送台車6にはリニアモータ9が搭載されており、図示はしていないが非接触給電方式などにより、搬送台車の本体部11に外部から給電するようになっている。 [0009] A linear motor 9 is mounted on the conveying carriage 6, although not shown by such as a non-contact power supply system is adapted to feed from the outside to the main body portion 11 of the platform car. この搬送台車の本体部11に取り付けられたリニアモータ9と軌道1に設置された磁石3との電磁誘導力により、搬送台車6は推力を得て移動走行することができる。 By electromagnetic induction force with the linear motor 9 and the magnet 3 mounted on the track 1 which is attached to the main body portion 11 of the conveyance carriage, the conveyance carriage 6 can move running to give a thrust. 搬送台車6には車輪が設けられており、軌道1内で搬送台車6の自重および搬送物13の荷重を支持しつつ走行する。 The transport carriage 6 is a wheel is provided, travels while supporting the weight and load of the conveyed object 13 of the transport carriage 6 in the track 1. 搬送台車6の本体部11の走行方向前面には、投光器8aおよび受光器8bが設けられている。 The traveling direction front surface of the main body 11 of the conveyance carriage 6, projector 8a and the light receiver 8b are provided. また、搬送台車本体部11の後面には、後続台車の投光器8aからの光を反射する反射器7が設けられている。 Further, the rear surface of the conveyance carriage body 11, a reflector 7 that reflects light from the succeeding truck projector 8a is provided.

【0010】次に、この軌道屈曲部における搬送台車の動きについて説明する。 [0010] Next, a description will be given movement of the transporting carriage in the track bend. まず、先行の搬送台車6bは直線状の軌道1を走行し、屈曲部の手前で減速して屈曲部に進入する。 First, the conveyance carriage 6b prior travels a straight track 1, enters the bent portion is decelerated before the bend. 続いて、後続の搬送台車6aが屈曲部に進入するが、このとき、搬送台車6aの投光器8aからは前方の搬送台車6b検出用の光が投光される。 Then, subsequent conveyance carriage 6a is but enters the bent portion, this time, light for detecting the front of the conveyance carriage 6b is projected from the projector 8a of the conveyor carriage 6a. この光は反射材2によって順次反射され、前方を走行する搬送台車6bの反射器7に到達する。 This light is sequentially reflected by the reflector 2, and reaches the reflector 7 of the conveyor carriage 6b running ahead. 反射器7で反射された光は、投光された光とほぼ同じ経路で反射材2で反射され、後続の搬送台車6aの受光器8bに回帰する。 The light reflected by the reflector 7, is reflected by the reflector 2 at approximately the same path as the projected light, to return to the light receiver 8b subsequent conveyance carriage 6a.

【0011】搬送台車6aは、自ら投光した光と同じ光が回帰してきたことを受光器8bで認識し、前方に搬送台車6bが存在することを知る。 [0011] transporting carriage 6a knows that recognizes that the same light as the light projected himself has been regression photodetector 8b, there are conveyance carriage 6b forward. 前方の搬送台車6bとの距離は、投光器8aと受光器8bの光量と検出感度の設定により決めることができる。 The distance between the front of the transport carriage 6b may be determined by setting the amount of light and the detection sensitivity of the projector 8a and receiver 8b. このように、後続の搬送台車6aは先行する搬送台車6bとの距離を知ることにより、先行搬送台車6bとの距離がある決められた距離以下になったときは、走行速度をさらに減速したりあるいは停止することができる。 Thus, subsequent conveyance carriage 6a is by knowing the distance between the transport carriage 6b the preceding, when it becomes less than the distance which is determined that there is a distance to the preceding conveying carriage 6b further or decelerating the running speed or it can be stopped.

【0012】次に、本発明の第2の実施の形態について図面を参照して説明する。 [0012] will be described with reference to the drawings, a second embodiment of the present invention. 図4は、軌道屈曲部の平面図、図5は、そのC−C方向断面図である。 Figure 4 is a plan view of the track bent portion, and FIG. 5 is a C-C cross section view. 軌道1には、搬送物13が搬送台車の荷受け部12から床に落下するのを防止するために、安全用のガード4を設置することがある。 The track 1, for conveying material 13 is prevented from falling to the floor from the load-receiving part 12 of the transport carriage, it is possible to install a guard 4 for safety. このガード4は、軌道1の両側に沿って全周あるいは一部に取り付けられ、搬送物13が仮に搬送台車から落下しても軌道上に止まるような構造になっており、板状あるいは網状の部材で形成されている。 The guard 4 is attached to the entire circumference or a part along both sides of the track 1, be conveyed 13 to fall from the tentatively transporting carriage has a structure such as stops in orbit, of the plate or net It is formed of members. この軌道屈曲部に沿って設けられたガード4のうち、外側のガード板の内側面に沿って鏡面状の反射材2を取り付ける。 Of the guard 4 provided along the track bent portion, mounting the reflector 2 of the mirror surface along the inner surface of the outer guard plate. 搬送台車6a、6bには、それぞれ搬送物13を積載する荷受け部12の進行方向前面に投光器8aと受光器8bを設置し、荷受け部後面に反射器7を設置する。 Conveyance carriage 6a, the 6b, the traveling direction front light projector 8a of load-receiving portion 12 for stacking transported object 13 respectively established a photodetector 8b, placing the reflector 7 to the load-receiving portion rear surface.
このようにすることにより、第1の実施の形態と同等の機能を発揮することができる。 By this way, it can exhibit the same function as the first embodiment. また、反射材2は軌道1 The reflective member 2 track 1
の外部に設置することになり、軌道1の製作が容易となる効果がある。 Will be installed in the outside, the effect of fabrication of the track 1 is facilitated. なお、第1、第2の実施の形態において、反射材2は鏡面状の別部材を取り付ける構造として述べてきたが、軌道1の内側面あるいはガイド4の内側面を直接鏡面状に仕上げるようにしてもよい。 In the first and second embodiments, the reflector 2 has been described as a structure for attaching a separate member mirror surface, so as to finish the inner surface of the inner surface or the guide 4 of the track 1 directly to a mirror-like it may be.

【0013】 [0013]

【発明の効果】従来は、軌道屈曲部における追突を防止するために、屈曲部の手前で後続の搬送台車を停止して待機させ、先行の搬送台車が屈曲部を通過して屈曲部に搬送台車が存在しない状態になってから後続の搬送台車を進入させるようにしていたため、屈曲部手前で搬送台車が渋滞し、これが原因で搬送時間が増加していた。 [Effect of the Invention] Conventionally, in order to prevent the collision of the track bent portion, the subsequent conveyance carriage in front of the bent portion to wait stopped, conveyance preceding conveying carriage of the bent portion through the bend portion since the bogie had to advancing the subsequent conveying carriage from a state that does not exist, and congestion conveyance carriage at the bent portion before this is conveyed time due had increased. しかし、屈曲部に光反射材を設置し、搬送台車に先行搬送台車の存在を検知するための投光器および受光器を設けることにより、屈曲部においても複数の搬送台車を追突させることなく進入させることができるようになり、渋滞を解消することができる。 However, the light reflecting material is placed on the bent portion, by providing the emitter and receiver for detecting the presence of a preceding conveying carriage in the transport carriage, it is advanced without collision a plurality of transport carriages even at the bent portion will be able to, it is possible to eliminate the congestion. その結果、搬送時間の短縮が可能となり、搬送効率の向上を図ることができる。 As a result, it is possible to shorten the transfer time, it is possible to improve the conveying efficiency.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1の実施の形態を示す図で、軌道屈曲部の内部を示す平面断面図である。 [1] a view showing a first embodiment of the present invention, is a plan sectional view showing the inside of the track bend.

【図2】図1のB−B方向の断面図である。 2 is a sectional view of direction B-B of FIG.

【図3】搬送台車の底面図である。 FIG. 3 is a bottom view of the transport truck.

【図4】本発明の第2の実施の形態を示す図で、軌道屈曲部の内部を示す平面断面図である。 In view showing a second embodiment of the present invention; FIG is a plan sectional view showing the inside of the track bend.

【図5】図4のC−C方向の断面図である。 5 is a sectional view of C-C direction in FIG. 4.

【図6】従来の天井搬送装置を示す図で、軌道屈曲部の内部を示す平面断面図である。 [6] a view showing a conventional ceiling transport device is a plan sectional view showing the inside of the track bend.

【図7】図6のA−A断面図である。 7 is an A-A sectional view of FIG.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 軌道 2 反射材 3 磁石 4 ガード 5 マーカ 6、6a、6b 搬送台車 7 反射器 8a 投光器 8b 受光器 9 リニアモータ 10 マーカ検出器 11 本体部 12 荷受け部 13 搬送物 1 track 2 reflector 3 magnet 4 guard 5 markers 6, 6a, 6b transporting carriage 7 reflectors 8a Emitter 8b light receiver 9 linear motor 10 marker detector 11 body portion 12 load-receiving part 13 conveyed

Claims (6)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 室内の天井から懸垂されて設置された軌道と、この軌道上を走行する搬送台車とを備えた天井搬送装置において、搬送台車の走行駆動部である本体部を覆い囲むように構成された軌道の屈曲部における外側壁の内面を鏡面化して光の反射面とし、搬送台車は進行方向前面に投光器と受光器を、また後面に反射器を備え、 And 1. A ceiling track placed is suspended from the room, the ceiling transport apparatus having a transport carriage which travels the orbit, so as to surround covers the main body portion is a traveling drive unit of the conveying carriage a light reflection surface of the inner surface of the outer wall and mirror surface at the bent portion of the configuration trajectory, the platform car is a transmitter and receiver in the traveling direction front, also with a reflector on the rear surface,
    後続の搬送台車からの投光が前記鏡面化した反射面で反射して先行する搬送台車の反射器に達し、この反射器から回帰する反射光を前記受光器で検知して車間距離を保つことを特徴とする天井搬送装置。 Projecting light from a subsequent conveyance carriage reaches the reflector conveyance carriage preceding reflected by the reflecting surface which is the mirror-, to keep the following distance the reflected light return from the reflector is detected by the photodetector ceiling transport apparatus according to claim.
  2. 【請求項2】 軌道屈曲部における外側壁の内面に、鏡面化した光反射面を有する反射材を取り付けたことを特徴とする請求項1記載の天井搬送装置。 Wherein the inner surface of the outer wall at the track bent portion, ceiling transport apparatus according to claim 1, wherein a fitted with a reflector having a light reflecting surface which is mirror-finished.
  3. 【請求項3】 前記投光器と受光器が搬送台車の本体部の進行方向前面に、また反射器が本体部後面に設けられていることを特徴とする請求項1記載の天井搬送装置。 Wherein the traveling direction front surface of the main body of the emitter and receiver transport vehicle, also reflector ceiling transport apparatus according to claim 1, characterized in that provided in the main body rear surface.
  4. 【請求項4】 室内の天井から懸垂されて設置された軌道と、この軌道上を走行する搬送台車とを備えた天井搬送装置において、搬送台車の走行駆動部である本体部を覆い囲むように構成された軌道の両側に搬送物落下防止用ガードを設け、このガードの軌道屈曲部における外側壁の内面を鏡面化して光の反射面とし、搬送台車は進行方向前面に投光器と受光器を、また後面に反射器を備え、後続の搬送台車からの投光が前記鏡面化した反射面で反射して先行する搬送台車の反射器に達し、この反射器から回帰する反射光を前記受光器で検知して車間距離を保つことを特徴とする天井搬送装置。 4. A ceiling track placed is suspended from the room, the ceiling transport apparatus having a transport carriage which travels the orbit, so as to surround covers the main body portion is a traveling drive unit of the conveying carriage the conveyed fall prevention guard on both sides of the structure trajectory provided the light reflection surface to the inner surface of the outer wall is mirror of the track bend of the guard, the light receiver transport vehicle and projector in the traveling direction front, comprising a reflector on the rear face also projecting from subsequent conveyance carriage reaches the reflector conveyance carriage preceding reflected by the reflecting surface which is the mirror-in the light receiver light reflected to return from this reflector detected overhead transport device, characterized in that to keep the vehicle distance.
  5. 【請求項5】 軌道屈曲部におけるガード外側壁の内面に、鏡面化した光反射面を有する反射材を取り付けたことを特徴とする請求項4記載の天井搬送装置。 The inner surface of the guard outer wall at 5. track bent portion, ceiling transport apparatus according to claim 4, characterized in that fitted with reflective material having a light reflecting surface which is mirror-finished.
  6. 【請求項6】 前記投光器と受光器が搬送台車の搬送物荷受け台の進行方向前面に、また反射器が搬送物荷受け台後面に設けられていることを特徴とする請求項4記載の天井搬送装置。 6. The traveling direction front surface of the transfer material load bearing platform of the emitter and receiver transport vehicle, also reflectors ceiling transport according to claim 4, characterized in that provided in the conveyance object load bearing platform rear apparatus.
JP29435997A 1997-10-27 1997-10-27 Overhead conveying device Pending JPH11130234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29435997A JPH11130234A (en) 1997-10-27 1997-10-27 Overhead conveying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29435997A JPH11130234A (en) 1997-10-27 1997-10-27 Overhead conveying device

Publications (1)

Publication Number Publication Date
JPH11130234A true JPH11130234A (en) 1999-05-18

Family

ID=17806697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29435997A Pending JPH11130234A (en) 1997-10-27 1997-10-27 Overhead conveying device

Country Status (1)

Country Link
JP (1) JPH11130234A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100859289B1 (en) 2004-07-22 2008-09-19 무라타 기카이 가부시키가이샤 Transportation vehicle system
US7942579B2 (en) 2005-06-30 2011-05-17 Thk Co., Ltd. Rolling guide device and method of manufacturing the same
CN102653939A (en) * 2012-05-21 2012-09-05 武汉理工大学 Reflector setting method for improving traffic safety at curve section of expressway

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100859289B1 (en) 2004-07-22 2008-09-19 무라타 기카이 가부시키가이샤 Transportation vehicle system
US7942579B2 (en) 2005-06-30 2011-05-17 Thk Co., Ltd. Rolling guide device and method of manufacturing the same
CN102653939A (en) * 2012-05-21 2012-09-05 武汉理工大学 Reflector setting method for improving traffic safety at curve section of expressway
CN102653939B (en) 2012-05-21 2014-07-02 武汉理工大学 Reflector setting method for improving traffic safety at curve section of expressway

Similar Documents

Publication Publication Date Title
US3973685A (en) Photoelectric sensing apparatus for pallet storage systems
EP0388814B1 (en) Passenger transport installation
US6629502B2 (en) Conveyance system
ES2362909T3 (en) Irradiation system that uses carriers transported by carrier.
US20020108528A1 (en) Installation for the downhill transportation of passengers from a higher station to a lower station
KR100563456B1 (en) The self-transfer vehicle and its device
US4950118A (en) System for loading and unloading trailers using automatic guided vehicles
KR957000147A (en) Automatic assembly apparatus (Automatic assembly apparatus)
KR0167881B1 (en) Wafer transfer system & its control method
KR100935134B1 (en) Overhead traveling vehicle system
TW200521051A (en) Overhead traveling crane system
JP3461543B2 (en) Missing detectors of the steps of the escalator
JP2002096725A (en) Carrier system
JP2010205102A (en) Travel control system and control method of traveling vehicle
US5021695A (en) Linear motor car system
EP0474321B1 (en) Transportation system of a floated-carrier type
US20070010908A1 (en) Belt conveyor for use with semiconductor containers
JP2003233422A (en) Conveyance system and its control method
CN102381559A (en) Transfer device
JPH05181527A (en) Automatic conveyer
KR100810528B1 (en) Track carriage system
CN101128374B (en) Arrangement for assembling products in batches on a high-speed conveyor belt
CA2008022C (en) Conveyor having self-propelled carrier
US5156093A (en) Transportation system of floated-carrier type
CN1052700C (en) Apparatus and method for detecting irregularity in frequency of steps passing particular point within passenger conveying device

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20000229