JPH1192073A - Passenger conveyor provided with photoelectric device - Google Patents

Passenger conveyor provided with photoelectric device

Info

Publication number
JPH1192073A
JPH1192073A JP26022997A JP26022997A JPH1192073A JP H1192073 A JPH1192073 A JP H1192073A JP 26022997 A JP26022997 A JP 26022997A JP 26022997 A JP26022997 A JP 26022997A JP H1192073 A JPH1192073 A JP H1192073A
Authority
JP
Japan
Prior art keywords
machine room
photoelectric device
passenger conveyor
entrance
escalator
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
JP26022997A
Other languages
Japanese (ja)
Inventor
Toshiro Katsumata
俊郎 勝又
Kazuyuki Yamaguchi
和幸 山口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Building Systems Co Ltd
Original Assignee
Hitachi Building Systems Co Ltd
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 Hitachi Building Systems Co Ltd filed Critical Hitachi Building Systems Co Ltd
Priority to JP26022997A priority Critical patent/JPH1192073A/en
Publication of JPH1192073A publication Critical patent/JPH1192073A/en
Pending legal-status Critical Current

Links

Landscapes

  • Escalators And Moving Walkways (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable a maintenance man to safely perform maintenance work even when the maintenance man removes a cover body at an entrance of a machine room to get into the machine room in the condition where a passenger conveyor operation circuit is not opened by mistake. SOLUTION: An escalator provided with a photoelectric device is at least provided with a machine room formed at an underfloor part of a on/off getting port, a removable cover body 8a, 8b to close an entrance of the machine room, and a photoelectric device 17 installed on the on/off getting port to detect a man or a thing, and in the case where the photoelectric device 17 detects a man or a thing, an escalator operating circuit is closed, where a safety switch is provided to open the escalator operating circuit when the cover body 8a, 8b is removed.

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、光電装置付き乗客
コンベアに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor with a photoelectric device.

【0002】[0002]

【従来の技術】従来、この種の乗客コンベアでは、乗降
口の床下部に機械室が設置されており、この機械室入口
に蓋体を取り外し自在に設けている。そして、この蓋体
を開いて機械室内に保守員が入り、巻上機、駆動チェー
ンなどの機器類の保守点検を行なうようにしていた。
2. Description of the Related Art Conventionally, in a passenger conveyor of this type, a machine room is installed at a lower part of a floor of a boarding / alighting entrance, and a lid is detachably provided at an entrance of the machine room. When the lid is opened, a maintenance person enters the machine room and performs maintenance and inspection of equipment such as a hoist and a drive chain.

【0003】さらに、乗降口に光電装置を設け、この光
出装置が乗降口を通り抜ける人若しくは物を検出すると
乗客コンベア運転回路が閉成して、踏段が所定時間駆動
するようになっていた。
Further, a photoelectric device is provided at the entrance, and when the light emitting device detects a person or an object passing through the entrance, the passenger conveyor operation circuit is closed and the steps are driven for a predetermined time.

【0004】[0004]

【発明が解決しようとする課題】上記従来例では、光電
装置が乗降口を通り抜ける人若しくは物を検出しないと
きには乗客コンベア運転回路が開放状態になっており踏
段が駆動しない。この踏段が駆動しない状態を、保守員
が、うっかり、操作盤の停止スイッチによる乗客コンベ
ア運転回路の開放状態と思い違いをして、蓋体を開け、
機械室内に入り、保守作業をしてしまうことがあった。
このような場合に、乗降口に乗客が近づき、その乗客を
光電装置が検出すると、乗客コンベア運転回路が閉成状
態となり、踏段が駆動してしまい人身事故が発生してし
まうという問題点があった。
In the above conventional example, when the photoelectric device does not detect a person or an object passing through the entrance, the passenger conveyor operating circuit is open and the steps are not driven. The maintenance staff inadvertently mistakenly thinks that this step was not driven as the passenger conveyor operation circuit opened by the stop switch on the operation panel, and opened the lid.
In some cases, the operator entered the machine room and performed maintenance work.
In such a case, when the passenger approaches the entrance and the photoelectric device detects the passenger, there is a problem that the passenger conveyor operation circuit is closed, the steps are driven, and a personal injury occurs. .

【0005】本発明は、上記問題点を解決しえる光電装
置付き乗客コンベアを提供するにある。
It is an object of the present invention to provide a passenger conveyor with a photoelectric device which can solve the above problems.

【0006】[0006]

【課題を解決するための手段】上記目的は、乗降口の床
下部に形成した機械室と、この機械室入口をふさぐ取り
外し自在の蓋体と、前記乗降口に設置されて人若しくは
物を検出した場合に乗客コンベア運転回路を閉成させる
光電装置付き乗客コンベアにおいて、前記蓋体を取り外
した状態にすると前記乗客コンベア運転回路を開放する
安全スイッチを設けることにより、達成される。
The object of the present invention is to provide a machine room formed below the floor of the entrance, a removable lid for closing the entrance of the machine room, and a person or object installed at the entrance to detect the person. This is achieved by providing a safety switch that opens the passenger conveyor operation circuit when the lid is removed in the passenger conveyor with the photoelectric device that closes the passenger conveyor operation circuit in the event that the passenger conveyor operation circuit is closed.

【0007】[0007]

【発明の実施の形態】以下、本発明の一実施の形態を図
1から図3に基づき説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

【0008】図1において、1は機械室、2はトラス、
3は踏段、4は巻上機、5は駆動チェーン、6は電源
盤、7は安全スイッチ、8a、8bは蓋体、9は操作
盤、10はハンドレールである。
In FIG. 1, 1 is a machine room, 2 is a truss,
3 is a step, 4 is a hoist, 5 is a drive chain, 6 is a power panel, 7 is a safety switch, 8a and 8b are lids, 9 is an operation panel, and 10 is a handrail.

【0009】エスカレータの機械室1内は、図1に示す
ように、狭く、巻上機4、駆動チェーン等の可動部が収
納され、しかも、踏段3の一部が露出している。機械室
1の入口をふさいでいる蓋体8a、8bは取り外し自在
になっている。
As shown in FIG. 1, the inside of the machine room 1 of the escalator is narrow, and accommodates movable parts such as a hoisting machine 4 and a drive chain, and furthermore, a part of the steps 3 is exposed. The lids 8a and 8b covering the entrance of the machine room 1 are detachable.

【0010】蓋体8a、8bは、機械室1の入口縁部に
設けた断面形状がL字形の支持枠11によって支持され
る。支持枠11には、防滴タイプのマイクロスイッチな
どからなる安全スイッチ7が取り付けられている。
The lids 8a and 8b are supported by a support frame 11 provided at the entrance edge of the machine room 1 and having an L-shaped cross section. A safety switch 7 composed of a drip-proof type micro switch or the like is attached to the support frame 11.

【0011】安全スイッチ7は、図2に示すように蓋体
8bが取り除かれると、コイルばねによってロッド13
が矢印P方向にさせられて、ロッド13の下端に固定し
たアルミニューム製カム板14により接点が押され、オ
フするようになっている。また、安全スイッチ7は、図
2に示すように、蓋体8bを閉じるとコイルばね12の
ばね力に逆らってロッド13が矢印Q方向に移動させら
れて、ロッド13の下端に固定したカム板14が点線に
示す位置に下降することで、オンするようになってい
る。
When the cover 8b is removed as shown in FIG. 2, the safety switch 7
In the direction of arrow P, and the contact is pushed off by an aluminum cam plate 14 fixed to the lower end of the rod 13 so as to be turned off. As shown in FIG. 2, when the cover 8b is closed, the rod 13 is moved in the direction of arrow Q against the spring force of the coil spring 12, and the safety switch 7 is fixed to the lower end of the rod 13 as shown in FIG. 14 is turned on by descending to the position shown by the dotted line.

【0012】安全スイッチ7及びロッド13をガイドす
るガイド部材15などは、ブラケット16を用いて支持
枠11に2本のボルトで固定している。カム板14は円
盤状としてロッド13が回転した場合であっても、確実
に安全スイッチ7のオン、オフが行なえるようにしたも
のである。
The safety switch 7 and the guide member 15 for guiding the rod 13 are fixed to the support frame 11 using a bracket 16 with two bolts. The cam plate 14 is disk-shaped so that the safety switch 7 can be reliably turned on and off even when the rod 13 rotates.

【0013】光電装置17は、図3及び図4に示すよう
に、エスカレータ乗降口に近接して設置されている。光
電装置17の一対のポールは、エスカレータのハンドレ
ール10の先端から約1500mm離れた位置に、か
つ、櫛20に噛み合う踏段3の先端から約2415mm
離れた位置に設置されている。
As shown in FIGS. 3 and 4, the photoelectric device 17 is installed near the escalator entrance. The pair of poles of the photoelectric device 17 is located at a position about 1500 mm away from the tip of the escalator handrail 10 and about 2415 mm from the tip of the step 3 that meshes with the comb 20.
It is installed at a remote location.

【0014】光電装置17が人若しくは物を検出する
と、図5に示すように、安全スイッチ確認用リレー18
が作動して、常開接点18aが閉じてエスカレータ運転
回路19が閉成し、踏段3が所定時間駆動した後に停止
する。機械室1内の保守点検のために蓋体8bを機械室
入口から取り除くと、安全スイッチがオフして安全スイ
ッチ確認用リレー18が開放され、常開接点18aが開
き、エスカレータ運転回路19が開放する。
When the photoelectric device 17 detects a person or an object, as shown in FIG.
Operates, the normally open contact 18a is closed, the escalator operation circuit 19 is closed, and the step 3 is stopped after being driven for a predetermined time. When the lid 8b is removed from the machine room entrance for maintenance and inspection in the machine room 1, the safety switch is turned off, the safety switch confirmation relay 18 is opened, the normally open contact 18a is opened, and the escalator operation circuit 19 is opened. I do.

【0015】以上の構成において、光電装置17が電源
に接続された状態のまま保守員が機械室1内の保守点検
をするために、蓋体8bを取り除くと、ロッド13がコ
イルばね12のばね力で持ち上げられ安全スイッチ7が
オフする。安全スイッチ7がオフすると安全スイッチ確
認用リレー18は、付勢されず、常開接点18aが開い
たままであり、エスカレータ運転回路19が開放した状
態を維持する。したがって、踏段3等の回転することが
ないので、機械室1内の保守点検をけがすることなく安
全に行うことができる。
In the above arrangement, when the maintenance person checks the inside of the machine room 1 with the photoelectric device 17 connected to the power supply, the cover 8b is removed. The safety switch 7 is turned off by force. When the safety switch 7 is turned off, the safety switch confirmation relay 18 is not energized, the normally open contact 18a remains open, and the escalator operation circuit 19 remains open. Therefore, since the steps 3 and the like do not rotate, the maintenance and inspection inside the machine room 1 can be performed safely without injury.

【0016】本実施形態では、カム板14を円盤状とし
ているが、これに限定されるものではない。カム板14
を半円状としてそのカム板14に当接するストッパー板
をブラケット16に固定することで、カム板14の回動
をストッパー板で阻止できるようにしても良い。
In the present embodiment, the cam plate 14 has a disk shape, but is not limited to this. Cam plate 14
May be formed in a semicircular shape, and the stopper plate that contacts the cam plate 14 may be fixed to the bracket 16 so that the rotation of the cam plate 14 can be prevented by the stopper plate.

【0017】[0017]

【発明の効果】以上のように、本発明によれば、光電装
置が人若しくは物を検出可能な状態のまま、うっかり、
機械室に入って保守点検の作業をしても、踏段等の回動
を確実に阻止できる安全性にすぐれた光電装置付き乗客
コンベアがえられた。
As described above, according to the present invention, while the photoelectric device can detect a person or an object, carelessly,
A passenger conveyor with a photoelectric device having excellent safety, which can reliably prevent the rotation of steps and the like even when performing maintenance work in the machine room, was obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施形態を示すエスカレータの機械
室部概略説明図である。
FIG. 1 is a schematic diagram illustrating a machine room of an escalator according to an embodiment of the present invention.

【図2】本発明の一実施形態を示す一部を破断してなる
要部拡大図である。
FIG. 2 is an enlarged view of a main part of an embodiment of the present invention, which is partially cut away.

【図3】本発明の一実施形態を示すエスカレータの乗降
口部の上面図である。
FIG. 3 is a top view of an entrance / exit portion of the escalator showing one embodiment of the present invention.

【図4】本発明の一実施形態を示すエスカレータの正面
図である。
FIG. 4 is a front view of an escalator showing one embodiment of the present invention.

【図5】本発明の一実施形態を示す要部電気回路図であ
る。
FIG. 5 is a main part electric circuit diagram showing one embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 機械室 2 トラス 3 踏段 4 巻上機 5 駆動チェーン 6 電源盤 7 安全スイッチ 8 蓋体 9 操作盤 10 ハンドレール 11 支持枠 12 コイルばね 13 ロッド 14 カム板 15 ガイド部材 16 ブラケット 17 光電装置 18 リレー 19 エスカレータ運転回路 DESCRIPTION OF SYMBOLS 1 Machine room 2 Truss 3 Steps 4 Hoist 5 Drive chain 6 Power board 7 Safety switch 8 Lid 9 Operation panel 10 Handrail 11 Support frame 12 Coil spring 13 Rod 14 Cam plate 15 Guide member 16 Bracket 17 Optical device 18 Relay 19 Escalator operation circuit

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 乗降口の床下部に形成した機械室と、こ
の機械室入口をふさぐ取り外し自在の蓋体と、前記乗降
口に設置されて人若しくは物を検出した場合に乗客コン
ベア運転回路を閉成させる光電装置付き乗客コンベアに
おいて、前記蓋体を取り外した状態にすると前記乗客コ
ンベア運転回路を開放する安全スイッチを設けたことを
特徴とする光電装置付き乗客コンベア。
1. A machine room formed under the floor of an entrance / exit, a removable lid for closing the entrance of the machine room, and a passenger conveyor operating circuit installed at the entrance / exit when detecting a person or an object. A passenger conveyor with a photoelectric device, wherein a safety switch for opening the passenger conveyor operation circuit when the lid is removed is provided in the passenger conveyor with a photoelectric device to be closed.
JP26022997A 1997-09-25 1997-09-25 Passenger conveyor provided with photoelectric device Pending JPH1192073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26022997A JPH1192073A (en) 1997-09-25 1997-09-25 Passenger conveyor provided with photoelectric device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26022997A JPH1192073A (en) 1997-09-25 1997-09-25 Passenger conveyor provided with photoelectric device

Publications (1)

Publication Number Publication Date
JPH1192073A true JPH1192073A (en) 1999-04-06

Family

ID=17345153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26022997A Pending JPH1192073A (en) 1997-09-25 1997-09-25 Passenger conveyor provided with photoelectric device

Country Status (1)

Country Link
JP (1) JPH1192073A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013116815A (en) * 2011-12-05 2013-06-13 Toshiba Elevator Co Ltd Passenger conveyor
WO2013190654A1 (en) * 2012-06-20 2013-12-27 三菱電機株式会社 Passenger conveyor safety device
JP6352498B1 (en) * 2017-06-08 2018-07-04 東芝エレベータ株式会社 Passenger conveyor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013116815A (en) * 2011-12-05 2013-06-13 Toshiba Elevator Co Ltd Passenger conveyor
WO2013190654A1 (en) * 2012-06-20 2013-12-27 三菱電機株式会社 Passenger conveyor safety device
CN104334491A (en) * 2012-06-20 2015-02-04 三菱电机株式会社 Passenger conveyor safety device
JP6352498B1 (en) * 2017-06-08 2018-07-04 東芝エレベータ株式会社 Passenger conveyor

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