JPH0664860A - Safety device for elevator - Google Patents

Safety device for elevator

Info

Publication number
JPH0664860A
JPH0664860A JP22430592A JP22430592A JPH0664860A JP H0664860 A JPH0664860 A JP H0664860A JP 22430592 A JP22430592 A JP 22430592A JP 22430592 A JP22430592 A JP 22430592A JP H0664860 A JPH0664860 A JP H0664860A
Authority
JP
Japan
Prior art keywords
elevator
car
gear
brake
safety device
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
JP22430592A
Other languages
Japanese (ja)
Inventor
Noboru Kano
昇 狩野
Nagaaki Igarashi
永明 五十嵐
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 Engineering and Service Co Ltd
Hitachi Building Systems Engineering Co Ltd
Original Assignee
Hitachi Building Systems Engineering and Service Co Ltd
Hitachi Building Systems Engineering 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 Engineering and Service Co Ltd, Hitachi Building Systems Engineering Co Ltd filed Critical Hitachi Building Systems Engineering and Service Co Ltd
Priority to JP22430592A priority Critical patent/JPH0664860A/en
Publication of JPH0664860A publication Critical patent/JPH0664860A/en
Pending legal-status Critical Current

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

PURPOSE:To provide a safety device for an elevator which prevents the occurrence of an accident during the occurrence of failure in operation of the electromagnetic brake of an elevator. CONSTITUTION:The safety device for an elevator comprises a means to generate an output during operation of a brake device 2, a gear 8 mounted on a rotary shaft 3 or a portion rotated through rotation of a rotary shaft, and a means to block rotation of the gear 8 through protrusion of a working piece 7 in a shape fitted in the tooth of the gear 8. When an elevator car 10 is stopped in other position than a given floor stop position when an output indicating operation of the brake device 2 is generated, the working piece 7 is protruded by means of the safety device for the elevator.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、エレベーターの安全装
置に係り、特にエレベーターの電磁ブレーキの故障時に
有効なエレベーターの安全装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator safety device, and more particularly, to an elevator safety device effective when an electromagnetic brake of the elevator fails.

【0002】[0002]

【従来の技術】エレベーターには、停止時にエレベータ
ー乗かごの重量と吊り合い重りの重量とのアンバランス
によりエレベーター乗かごが動かないように鋼車或は電
動機のトルクを伝える回転軸にブレーキディスクやブレ
ーキドラムを設けこれらの回転を摩擦力で阻止する仕組
みのブレーキ装置を備えている。このブレーキ装置は、
ブレーキコイルを付勢或は消勢することによりブレーキ
コイル中央のプランジャが移動し、機械的にブレーキド
ラム或はブレーキディスクをシュー或はディスクが押
え、摩擦力が生じる構成となっている。一例としては、
特開昭54−31149号公報に開示されるように、停
電時の場合までも考慮したブレーキ等が開示されてい
る。
2. Description of the Related Art An elevator has a brake disc or a rotating shaft for transmitting a torque of a steel car or an electric motor so that the elevator car does not move due to an imbalance between the weight of the elevator car and the weight of the hanging weight when the elevator is stopped. It is equipped with a brake device that has a brake drum to prevent these rotations by frictional force. This braking device
By energizing or deactivating the brake coil, the plunger in the center of the brake coil moves, and the shoe or the disc mechanically presses the brake drum or the brake disc to generate a frictional force. As an example,
As disclosed in Japanese Patent Application Laid-Open No. 54-31149, a brake and the like are disclosed in consideration of a power failure.

【0003】[0003]

【発明が解決しようとする課題】しかし、従来例に示す
エレベーターには、このブレーキ装置の電気的部分が正
常で、機械的部分が故障した場合のブレーキ開放状態に
ついて何の考慮もされておらず、このような場合エレベ
ーターがアンバランスによりドアを開扉したまま動き出
すことが考えられ、人身事故が起こることも考えられ
る。
However, in the elevator shown in the conventional example, no consideration is given to the brake open state when the electric part of the brake device is normal and the mechanical part fails. In such a case, it is possible that the elevator will start moving with the door open due to imbalance, which may result in personal injury.

【0004】本発明の目的は、このような不具合を解消
し、ブレーキ装置の故障時の事故を防ぐことのできるエ
レベーターの安全装置を提供することにある。
An object of the present invention is to provide a safety device for an elevator, which is capable of solving such a problem and preventing an accident when the brake device fails.

【0005】[0005]

【課題を解決するための手段】上記本発明の目的は、電
動機と、前記電動機の与える駆動トルクを伝える回転軸
と、前記回転軸に固定され乗客の乗り込む乗かごを昇降
させるロープを移動する鋼車と、前記乗かごの停止時に
前記回転軸に取り付けられたドラム或はディスクを摩擦
力にて固定するブレーキ装置とを備えたエレベーターの
安全装置において、前記ブレーキ装置の動作時に出力を
発する出力手段と、前記回転軸或は前記回転軸の回転に
より回転する部位に取り付けられる歯車と前記歯車の歯
に嵌合する形状の作動片の突出により前記歯車の回転を
阻止する阻止手段を設け、前記ブレーキ装置の動作を示
す出力が得られている時に前記エレベーター乗かごが所
定の階床停止位置以外となったとき、前記作動片を突出
させることにより達成される。
The object of the present invention is to move an electric motor, a rotating shaft for transmitting a drive torque given by the electric motor, and a steel which is fixed to the rotating shaft and moves a rope for raising and lowering a passenger's car. In an elevator safety device including a car and a brake device that fixes a drum or a disk mounted on the rotating shaft by frictional force when the car is stopped, an output unit that outputs an output when the brake device operates. And a blocking means for blocking the rotation of the gear by the protrusion of the gear attached to the rotary shaft or a portion rotated by the rotation of the rotary shaft and the tooth of the gear. When the elevator car is out of the predetermined floor stop position while the output indicating the operation of the device is obtained, by projecting the operating piece It is made.

【0006】[0006]

【作用】上記構成によれば、エレベーター乗かごが所定
階床で停止していてブレーキ装置の動作に応じて出力手
段から出力が発せられている際、エレベーター乗かごが
移動して所定の階床停止位置以外となった時に、回転軸
或は回転軸の回転により回転する部位に取り付けられた
歯車の歯と嵌合する作動片を突出させて歯車の回転を阻
止するため、吊り合い重りとの重量のアンバランスによ
りエレベーター乗かごが動き始めた時に、この乗かごの
移動を阻止することができる。
According to the above construction, when the elevator car is stopped at the predetermined floor and the output is output from the output means in response to the operation of the brake device, the elevator car moves to the predetermined floor. When it is not in the stop position, the operating piece that fits with the teeth of the rotating shaft or the gear that is attached to the part rotated by the rotation of the rotating shaft is projected to prevent the rotation of the gear. When the elevator car starts moving due to an imbalance in weight, it is possible to prevent the car from moving.

【0007】[0007]

【実施例】以下、本発明の一実施例を図面を用いて説明
する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【0008】図1は本発明の一実施例を示す概略図であ
り、図中1は電動機、2はブレーキ装置、3は回転軸、
4はブレーキ用ドラム、5はブレーキライニング、6は
乗かご10と吊り合い重り16をつなぐロープ9が巻き
掛けられる鋼車、8は鋼車6と同じ軸に取り付けられる
歯車、7はこの歯車8の歯に嵌合する形状とされた作動
片である。電動機1の駆動トルクは、回転軸3により鋼
車6に伝えられておりこの回転軸3にはドラム4が固定
され、乗かご10の停止時には、ブレーキ装置2の動作
でブレーキライニング5がこのドラム4を挟み、摩擦力
により乗かご10が吊り合い重り16とのアンバランス
により動き出すのを止めている。
FIG. 1 is a schematic view showing an embodiment of the present invention, in which 1 is an electric motor, 2 is a brake device, 3 is a rotary shaft,
Reference numeral 4 is a brake drum, 5 is a brake lining, 6 is a steel wheel around which a rope 9 connecting the car 10 and the hanging weight 16 is wound, 8 is a gear attached to the same shaft as the steel wheel 6, and 7 is this gear 8 It is an actuating piece shaped to fit the teeth of the. The drive torque of the electric motor 1 is transmitted to the steel wheel 6 by the rotary shaft 3, and the drum 4 is fixed to the rotary shaft 3. When the car 10 is stopped, the brake lining 5 is operated by the brake lining 5 by the operation of the brake device 2. 4, the carriage 10 is stopped by the frictional force due to the imbalance between the car 10 and the weight 16.

【0009】また、歯車8は鋼車6と一緒に回転する構
造となっているが、特にこの位置に設置する必要はな
く、たとえばドラム4のように回転軸3に取り付けても
良く、また、電動機1に内蔵させても良い。即ち回転を
阻止することにより乗かご10の動きを止めることが可
能な部位であればどこに歯車8を設けても良い。
Further, the gear 8 is structured to rotate together with the steel wheel 6, but it is not particularly required to be installed at this position, and it may be mounted on the rotary shaft 3 like the drum 4, for example. It may be built in the electric motor 1. That is, the gear 8 may be provided anywhere as long as it can stop the movement of the car 10 by blocking the rotation.

【0010】作動片7は図示されない駆動部により上下
に動き、歯車8と嵌合することにより、乗かご10の動
きを阻止している。この作動片7が動作するのは、乗か
ごが所定階床に停止し、その後何らかの故障によりブレ
ーキ装置が動作しているにもかかわらずブレーキライニ
ング5がドラム4を挟んでおらず乗かご10と吊り合い
重り16のアンバランスにより乗かご10が徐々に動き
始めた時に限定する。
The actuating piece 7 moves up and down by a drive unit (not shown) and engages with the gear 8 to prevent movement of the car 10. This operating piece 7 operates because the car is stopped at a predetermined floor and the brake lining 5 is not sandwiching the drum 4 even though the brake device is operating due to some trouble thereafter. Only when the car 10 gradually starts to move due to the imbalance of the hanging weight 16.

【0011】作動片7の嵌合している状態を図2に示す
が、乗かご10の移動を阻止可能な強度を有するため、
歯車8の歯も大きな形をしており、乗かご10が停止し
ている時、即ち、本装置はドアが開いており、しかも乗
客が乗降している時に乗かご10が動き出すことを防ぐ
ようになっている。
FIG. 2 shows a state in which the operating piece 7 is fitted. Since the operating piece 7 has such strength as to prevent movement of the car 10,
The teeth of the gear 8 are also large, to prevent the car 10 from moving when the car 10 is stopped, that is, when the door is open and the passengers are getting on and off. It has become.

【0012】図示しない駆動部の回路構成を図3に示
す。
FIG. 3 shows a circuit configuration of a drive unit (not shown).

【0013】図中のP、Nは商用電源を示しており、1
1は乗かご10が動くことにより回転する電動機1から
出力を得ており、電動機1が動いている時に接点が閉成
する常開接点、12は常開接点11の閉成により乗かご
10の移動を検出するリレー、13は乗かご移動検出リ
レー12の常開接点、14はブレーキ装置2の有する電
磁コイルに通電されていない時、即ちブレーキライニン
グ5がドラム4を挟み、乗かご10の動きが阻止されて
いる時に接点が閉成する常閉接点、15は図示しない作
動片7の駆動部を起動するための動作リレーである。
In the figure, P and N indicate commercial power sources, and 1
1 is an output obtained from the electric motor 1 that rotates when the car 10 moves, and the contact is closed when the motor 1 is moving. 12 is the normally open contact 11 that is closed to close the car 10. A relay for detecting movement, 13 is a normally open contact of the cage movement detection relay 12, 14 is a state in which the electromagnetic coil of the brake device 2 is not energized, that is, the brake lining 5 sandwiches the drum 4 and the cage 10 moves. Is a normally-closed contact that is closed when the contact is blocked, and reference numeral 15 is an operation relay for activating the drive unit of the operating piece 7 (not shown).

【0014】今、ブレーキ装置2の機械部分の故障によ
りブレーキライニング5がドラム4を挟めない状態であ
ると仮定する。
Now, assume that the brake lining 5 is in a state in which the drum 4 cannot be pinched due to a mechanical failure of the brake device 2.

【0015】乗かご10が所定階に到着しブレーキ装置
2には通常通りの指令信号が伝わり電磁コイルへの通電
をやめる。しかし、機械部分の故障のためブレーキは開
放したままとなっている。この場合、電気的にはブレー
キ装置は正常動作をしているため常閉接点14は閉成し
ている。乗かご10のドアが開き乗客が乗降している
と、乗かご10と吊り合い重り16との間に重量差が生
じてアンバランスとなり、乗かご10或は吊り合い重り
16のうち重い方側が徐々に下降する。この乗かご10
の移動により電動機1が回転しこの電動機1からの出力
を得て乗かご10が動いていることを検出すると常閉接
点11が閉成し、P−11−12−Nの閉回路ができ、
乗かご移動検出リレー12の付勢によりこのリレーの常
開接点13が閉成し、P−13−14−15−Nの閉回
路ができ作動片動作リレー15が付勢される。作動片動
作リレー15の付勢により作動片7の駆動部が起動さ
れ、作動片7が歯車8と嵌合し、歯車8の回転が阻止さ
れることにより乗かご10の動きも止まる。
When the car 10 arrives at the predetermined floor, the usual command signal is transmitted to the brake device 2 to stop energizing the electromagnetic coil. However, the brake remains open due to a mechanical failure. In this case, the normally closed contact 14 is closed electrically because the brake device is operating normally. When the door of the car 10 is opened and passengers are getting on and off, there is a weight difference between the car 10 and the hanging weight 16, which causes imbalance, and the heavier side of the car 10 or the hanging weight 16 is Gradually descend. This basket 10
When the electric motor 1 is rotated by the movement of the electric motor 1 and the output from the electric motor 1 is detected to detect that the car 10 is moving, the normally closed contact 11 is closed to form a closed circuit P-11-12-N.
The normally open contact 13 of the car movement detection relay 12 is closed by the energization of the car movement detection relay 12 to form a closed circuit of P-13-14-15-N, and the actuation piece operation relay 15 is energized. The drive of the operating piece 7 is activated by the urging of the operating piece operating relay 15, the operating piece 7 is fitted to the gear 8, and the rotation of the gear 8 is blocked, so that the movement of the car 10 also stops.

【0016】このように本実施例によれば、ブレーキの
故障時における乗かごの動きを止めることが可能とな
り、乗降中の乗客が怪我をしたりすることを防止でき
る。
As described above, according to the present embodiment, it is possible to stop the movement of the car when the brake is broken, and it is possible to prevent the passengers from getting on and off the vehicle from being injured.

【0017】[0017]

【発明の効果】本発明によれば、ブレーキ装置動作時に
おける乗かごの移動を検出して歯車の歯に嵌合する作動
片を突出させるため、ブレーキ故障時等における事故を
防止する効果がある。
According to the present invention, the movement of the car during the operation of the braking device is detected and the operating piece fitted to the tooth of the gear is projected, so that there is an effect of preventing an accident such as a brake failure. .

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

【図1】本発明の一実施例を示す概略図である。FIG. 1 is a schematic view showing an embodiment of the present invention.

【図2】作動片が歯車の歯に嵌合している状態を示す正
面図である。
FIG. 2 is a front view showing a state in which the operating piece is fitted in the teeth of the gear.

【図3】作動片駆動部の回路構成図である。FIG. 3 is a circuit configuration diagram of an operating piece driving unit.

【符号の説明】[Explanation of symbols]

1 電動機 2 ブレーキ装置 3 回転軸 4 ドラム 5 ブレーキライニング 6 鋼車 7 作動片 8 歯車 9 ロープ 10 乗かご 16 吊り合い重り 1 Electric Motor 2 Brake Device 3 Rotating Shaft 4 Drum 5 Brake Lining 6 Steel Car 7 Operating Piece 8 Gear 9 Rope 10 Car Cage 16 Suspended Weight

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 電動機と、前記電動機の与える駆動トル
クを伝える回転軸と、前記回転軸に固定され乗客の乗り
込む乗かごを昇降させるロープを移動する鋼車と、前記
乗かごの停止時に前記回転軸に取り付けられたドラム或
はディスクを摩擦力にて固定するブレーキ装置とを備え
たエレベーターの安全装置において、前記ブレーキ装置
の動作時に出力を発する出力手段と、前記回転軸或は前
記回転軸の回転により回転する部位に取り付けられる歯
車と前記歯車の歯に嵌合する形状の作動片の突出により
前記歯車の回転を阻止する阻止手段を設け、前記ブレー
キ装置の動作を示す出力が得られている時に前記エレベ
ーター乗かごが所定の階床停止位置以外となったとき、
前記作動片を突出させることを特徴とするエレベーター
の安全装置。
1. An electric motor, a rotating shaft for transmitting a drive torque given by the electric motor, a steel wheel for moving a rope which is fixed to the rotating shaft and which moves a passenger's car up and down, and the rotation when the car is stopped. In an elevator safety device comprising a brake device for fixing a drum or a disc mounted on a shaft by frictional force, an output means for outputting an output when the brake device is operated, and the rotary shaft or the rotary shaft. An output indicating the operation of the brake device is obtained by providing a blocking means for blocking the rotation of the gear by the protrusion of the gear attached to the portion rotated by the rotation and the operating piece having a shape fitted to the teeth of the gear. Sometimes when the elevator car is out of the designated floor stop position,
A safety device for an elevator, wherein the operating piece is projected.
JP22430592A 1992-08-24 1992-08-24 Safety device for elevator Pending JPH0664860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22430592A JPH0664860A (en) 1992-08-24 1992-08-24 Safety device for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22430592A JPH0664860A (en) 1992-08-24 1992-08-24 Safety device for elevator

Publications (1)

Publication Number Publication Date
JPH0664860A true JPH0664860A (en) 1994-03-08

Family

ID=16811688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22430592A Pending JPH0664860A (en) 1992-08-24 1992-08-24 Safety device for elevator

Country Status (1)

Country Link
JP (1) JPH0664860A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009018882A (en) * 2007-07-10 2009-01-29 Mitsubishi Electric Building Techno Service Co Ltd Elevator device
JP2010095355A (en) * 2008-10-17 2010-04-30 Kuma Lift Gijutsu Kenkyusho:Kk Elevator safety device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009018882A (en) * 2007-07-10 2009-01-29 Mitsubishi Electric Building Techno Service Co Ltd Elevator device
JP2010095355A (en) * 2008-10-17 2010-04-30 Kuma Lift Gijutsu Kenkyusho:Kk Elevator safety device

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