JPH0643206B2 - Safety device for driving and moving rack - Google Patents
Safety device for driving and moving rackInfo
- Publication number
- JPH0643206B2 JPH0643206B2 JP12852285A JP12852285A JPH0643206B2 JP H0643206 B2 JPH0643206 B2 JP H0643206B2 JP 12852285 A JP12852285 A JP 12852285A JP 12852285 A JP12852285 A JP 12852285A JP H0643206 B2 JPH0643206 B2 JP H0643206B2
- Authority
- JP
- Japan
- Prior art keywords
- rack
- driving
- wheel
- safety device
- lower rail
- 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
- Warehouses Or Storage Devices (AREA)
- Control Of Conveyors (AREA)
Description
【発明の詳細な説明】 ［技術分野］ 本発明は、工場或は倉庫等にて使用される利用者にとっ
て大型の駆動移動ラックにおいてこれの脱線を検出して
安全を図る技術に関する。Description: TECHNICAL FIELD The present invention relates to a technique for ensuring safety by detecting derailment of a large-sized moving mobile rack for a user used in a factory, a warehouse, or the like.
［背景技術］ 従来、工場或は倉庫等にて使用される比較的大型の駆動
移動ラックにおいてその脱輪を検出するのに、ラック駆
動用のモータの過負荷検出にて行うものであったが故
に、脱輪検出は負荷が相当に大きくなる脱輪完了後にお
いて行なわれるものとなり、このように脱輪検出を脱輪
完了後において検出するから、脱輪したラックが転倒し
大事故になる虞れがあるものであった。[Background Art] Conventionally, in a relatively large drive movable rack used in a factory, a warehouse, or the like, the removal of the wheel has been detected by detecting an overload of a motor for driving the rack. Therefore, derailment detection is performed after the derailment is completed, at which the load becomes considerably large, and since the derailment detection is detected after the derailment is completed, the derailed rack may fall and cause a serious accident. There was one.
［発明の目的］ 本発明はこのような問題に鑑みてなされたものであり、
その目的とするところは、比較的簡単な構成により事前
に脱輪を検出することができる駆動移動ラックの安全装
置を提供することにある。[Object of the Invention] The present invention has been made in view of such problems,
An object of the invention is to provide a safety device for a drive movable rack capable of detecting derailment in advance with a relatively simple structure.
［発明の開示］ 本発明は、下レール１にラック２の車輪３を駆動走行自
在に載設し、車輪３が下レール１から外れるときのラッ
ク２の上昇を検出する光電検出装置４を設け、この光電
検出装置４の検出結果に基づいてラック２の駆動走行を
停止させる手段５を設けて成ることを特徴とする駆動移
動ラックの安全装置にかかるものであり、このように構
成することによって、上記目的を達成できるに至った。
つまり、駆動移動されるラック２が一定以上に持ち上げ
られるのを検出してラック２の駆動移動を停止させるこ
とができるから、事前にラック２の脱輪を検出し、脱輪
を未然に防ぐこともでき、たとえオーバーランにより脱
輪が生じても脱輪に対して早期に対処でき、ラック２が
転倒に至るのを防止できるようにし、しかもその検出も
光電検出装置４にてその構成を簡単にできながら正確に
検出できるようにしたものである。DISCLOSURE OF THE INVENTION According to the present invention, a wheel 3 of a rack 2 is movably mounted on a lower rail 1 and a photoelectric detection device 4 for detecting a rise of the rack 2 when the wheel 3 comes off the lower rail 1 is provided. The present invention relates to a safety device for a drive / moving rack, characterized in that it is provided with means 5 for stopping the drive traveling of the rack 2 based on the detection result of the photoelectric detection device 4. The above-mentioned object can be achieved.
That is, since it is possible to stop the driving movement of the rack 2 by detecting that the rack 2 to be driven and moved is lifted above a certain level, it is possible to detect the wheel removal of the rack 2 in advance and prevent the wheel removal from occurring. Even if wheel loss occurs due to overrun, it is possible to quickly deal with wheel loss and prevent the rack 2 from tipping over, and the photoelectric detection device 4 can detect it easily. Although it is possible, it is possible to detect accurately.
以下本発明の実施例を図面に基づいて詳述する。Embodiments of the present invention will be described in detail below with reference to the drawings.
ラック２は棚のような収納部(図示せず)を設けてあり、
部品や製品等を収納することができるようにしてある。
ラック２の下面には凹溝１０を有する車輪３を転動自在
に設けてある。ラック２の上面は偏平面になっていて、
ランナー８をランナー軸９廻りに回転自在に設けてあ
る。下レール１並びに上レール６はともに長円形の環状
にしてあり、床７と天井に付設してある。下レール１は
山形に形成してあり、この山形の下レール１に車輪３の
凹溝１０を嵌めることで車輪３を下レール１に転動自在
にしてある。上レール６は断面リップ付きコ字状に形成
してあり、ランナー８を上レール６のランナー受面１１
上に載設させてラック２を吊下げ状態で支持させてあ
る。しかしてラック２が倒れないように上下レール１，
６に沿って環状に移動させることができるようにしてあ
る。駆動チェーン１２をスプロケット１３とアイドラ１
４とに巻きかけてあり、駆動チェーン１２には一定間隔
を隔てて牽引体１５を設けてある。そして牽引体１５を
夫々ラック２に係合させてあり、しかして電動モータ
(図示せず)を駆動させてスプロケット１３を介して駆動
チェーン１２を駆動回転させ、牽引体１５を介してラッ
ク２を上下レール１，６に沿って駆動移動させることが
できるようにしてある。このようなラック２群の回動移
動箇所の所定位置に物品取り出し部が構成されていて、
ラック２群に収納された多種類の物品から所望の物品を
取り出すことができるようにしてある。The rack 2 has a storage part (not shown) like a shelf,
It is designed to be able to store parts and products.
A wheel 3 having a groove 10 is provided on the lower surface of the rack 2 so as to be rollable. The upper surface of the rack 2 is a flat surface,
The runner 8 is rotatably provided around the runner shaft 9. Both the lower rail 1 and the upper rail 6 have an oval annular shape and are attached to the floor 7 and the ceiling. The lower rail 1 is formed in a mountain shape, and the groove 3 of the wheel 3 is fitted into the mountain-shaped lower rail 1 so that the wheel 3 can be rolled on the lower rail 1. The upper rail 6 is formed in a U shape with a lip section, and the runner 8 is attached to the runner receiving surface 11 of the upper rail 6.
The rack 2 is placed on the top and supported in a suspended state. Then, to prevent the rack 2 from falling, the upper and lower rails 1,
It can be moved in a ring shape along the line 6. Drive chain 12 with sprocket 13 and idler 1
4, and the drive chain 12 is provided with the traction bodies 15 at regular intervals. Then, the tow bodies 15 are engaged with the racks 2, respectively.
A drive chain (not shown) is driven to rotate the drive chain 12 via the sprocket 13, and the rack 2 can be driven to move along the upper and lower rails 1 and 6 via the traction body 15. An article take-out section is formed at a predetermined position of such a rotational movement position of the rack 2 group,
A desired article can be taken out from various kinds of articles stored in the rack 2 group.
そしてラック２群の移送経路の内、第１図に示すような
直線経路に沿ってラック２の車輪３が下レール１から外
れるときのラック２の天井の上昇を検出する光電検出装
置４を設けてある。光電検出装置４は投光器１６と受光
器１７とから構成してある。このような光電検出装置４
の検出結果に基づいてラック２の駆動走行を停止させる
手段５を設けてある。このようなラック２の走行を停止
させる手段５としては、駆動チェーン１２を駆動させる
電動モータの電源回路を切るようにようにしてある。具
体的には、第５図に示す回路図のように、直線経路に夫
々配した２組のうちいずれかの光電検出装置４の投光器
１６からの光束が遮られると、いずれかの光電管アンプ
Ph1,Ph2の光電スイッチph1,ph2が作動し、リレーＲ1が
働き、そのa接点r1が閉じられ、光電スイッチph1,ph2の
作動状態を自己保持するとともにブザーBz1及び警報ラ
イトＰＴ1を作動させて異常を表示し、加えて電動モー
タの電源回路に設けてある上記リレーＲ1のb接点r2を開
き電動モータを停止させるようにしてある。そしてリセ
ット釦ＰＢ1を手動で切ることにより、ブザーBz1及び警
報ライトＰＴ1を消すことができるようにしてある。そ
して脱線の原因を解消したのちリセット釦ＰＢ1をリセ
ットしてリレーＲ1をリセットするのである。A photoelectric detection device 4 for detecting a rise in the ceiling of the rack 2 when the wheels 3 of the rack 2 are disengaged from the lower rail 1 is provided along a linear path as shown in FIG. There is. The photoelectric detection device 4 is composed of a light projector 16 and a light receiver 17. Such a photoelectric detection device 4
Means 5 for stopping the drive traveling of the rack 2 on the basis of the detection result of 1 is provided. As means 5 for stopping the traveling of the rack 2 as described above, the power supply circuit of the electric motor for driving the drive chain 12 is cut off. Specifically, as shown in the circuit diagram of FIG. 5, when the luminous flux from the projector 16 of any one of the two photoelectric detection devices 4 arranged in a straight line path is blocked, any photoelectric tube amplifier
The photoelectric switches ph 1 and ph 2 of Ph 1 and Ph 2 are activated, the relay R 1 is activated, and its a contact r 1 is closed, and the operating state of the photoelectric switches ph 1 and ph 2 is maintained by itself and the buzzer Bz 1 The alarm light PT 1 is operated to indicate an abnormality, and in addition, the b contact r 2 of the relay R 1 provided in the power supply circuit of the electric motor is opened to stop the electric motor. The buzzer Bz 1 and the alarm light PT 1 can be turned off by manually turning off the reset button PB 1 . Then, after eliminating the cause of derailment, the reset button PB 1 is reset and the relay R 1 is reset.
このような構成によれば、下レール１の上に障害物があ
る等して駆動移動されるラック２が一定以上に持ち上げ
られて脱輪しようとする場合に、ラック２の傾きによる
ラック２天井部分の上昇を検出して、電動モータを停止
させてラック２の駆動移動を停止させるのであり、事前
にラック２の脱輪を検出し、脱輪を未然に防ぎ、たとえ
オーバーランにより脱輪が生じても脱輪に対して早期に
対処でき、ラック２が転倒に至るのを防止するものであ
る。According to such a configuration, when the rack 2 driven and moved due to an obstacle on the lower rail 1 is lifted above a certain level and is about to be derailed, the rack 2 ceiling due to the inclination of the rack 2 The rise of the part is detected, the electric motor is stopped, and the drive movement of the rack 2 is stopped. Therefore, the wheel removal of the rack 2 is detected in advance, and the wheel removal is prevented in advance. Even if it occurs, derailment can be dealt with early and the rack 2 can be prevented from tipping over.
［発明の効果］ 以上要するに本発明は、駆動移動されるラックが一定以
上に持ち上げられるのを検出してラックの駆動移動を停
止させることができるから、事前にラックの脱輪を検出
し、脱輪を未然に防ぐこともでき、たとえオーバーラン
により脱輪が生じても脱輪に対して早期に対処でき、ラ
ックが転倒に至るのを防止できるという利点がある。し
かもその検出も光電検出装置にてその構成を簡単にでき
ながら正確に検出できるという利点がある。[Effects of the Invention] In summary, according to the present invention, it is possible to stop the driving movement of the rack by detecting that the rack being driven and moved is lifted above a certain level. There is an advantage that wheels can be prevented in advance, and even if a wheel loss occurs due to overrun, the wheel loss can be dealt with early and the rack can be prevented from tipping over. Moreover, there is an advantage that the photoelectric detection device can detect the detection accurately while simplifying its configuration.
第１図は本発明の一実施例の概略平面図、第２図は同上
の概略側面図、第３図は同上の上下レールとラックの関
係を示す断面図、第４図は同上の光電検出装置の作用を
示す側面図、第５図は同上の回路図であり、１は下レー
ル、２はラック、３は車輪、４は光電検出装置、５は手
段である。FIG. 1 is a schematic plan view of an embodiment of the present invention, FIG. 2 is a schematic side view of the same as above, FIG. 3 is a cross-sectional view showing the relationship between upper and lower rails and a rack of the same, and FIG. FIG. 5 is a side view showing the operation of the device, and FIG. 5 is a circuit diagram of the same as above. 1 is a lower rail, 2 is a rack, 3 is wheels, 4 is a photoelectric detection device, and 5 is means.
Claims (1)
載設し、車輪が下レールから外れるときのラックの上昇
を検出する光電検出装置を設け、この光電検出装置の検
出結果に基づいてラックの駆動走行を停止させる手段を
設けて成ることを特徴とする駆動移動ラックの安全装
置。Claims: 1. A rack wheel is movably mounted on a lower rail, and a photoelectric detection device is provided for detecting a rise of the rack when the wheel comes off the lower rail. A safety device for a driving and moving rack, characterized in that it is provided with means for stopping the driving and running of the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12852285A JPH0643206B2 (en) | 1985-06-13 | 1985-06-13 | Safety device for driving and moving rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12852285A JPH0643206B2 (en) | 1985-06-13 | 1985-06-13 | Safety device for driving and moving rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61287614A JPS61287614A (en) | 1986-12-18 |
| JPH0643206B2 true JPH0643206B2 (en) | 1994-06-08 |
Family
ID=14986823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12852285A Expired - Lifetime JPH0643206B2 (en) | 1985-06-13 | 1985-06-13 | Safety device for driving and moving rack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643206B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025431B (en) * | 2018-08-10 | 2024-03-15 | 中平能化集团机械制造有限公司 | Car table inclination protection device in lifting process of car table of stereo garage |
-
1985
- 1985-06-13 JP JP12852285A patent/JPH0643206B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61287614A (en) | 1986-12-18 |
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