JP4104911B2 - Elevator safety device - Google Patents

Elevator safety device Download PDF

Info

Publication number
JP4104911B2
JP4104911B2 JP2002166816A JP2002166816A JP4104911B2 JP 4104911 B2 JP4104911 B2 JP 4104911B2 JP 2002166816 A JP2002166816 A JP 2002166816A JP 2002166816 A JP2002166816 A JP 2002166816A JP 4104911 B2 JP4104911 B2 JP 4104911B2
Authority
JP
Japan
Prior art keywords
car
emergency stop
safety device
lever
push bar
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 - Fee Related
Application number
JP2002166816A
Other languages
Japanese (ja)
Other versions
JP2004010272A (en
Inventor
隆雄 西田
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2002166816A priority Critical patent/JP4104911B2/en
Publication of JP2004010272A publication Critical patent/JP2004010272A/en
Application granted granted Critical
Publication of JP4104911B2 publication Critical patent/JP4104911B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/28Buffer-stops for cars, cages, or skips
    • B66B5/284Buffer-stops for cars, cages, or skips mounted on cars or counterweights
    • B66B5/286Buffer-stops for cars, cages, or skips mounted on cars or counterweights between two cars or two counterweights

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、エレベータの安全装置に関し、特に、昇降路内に複数のかごを有するマルチカー方式エレベータの安全装置に関するものである。
【0002】
【従来の技術】
通常、昇降路内に複数のかごを有するマルチカー方式エレベータにおいては、かご同士の衝突防止または衝突時の衝撃低減のためのエレベータの安全装置として、例えば特開平7−157243号公報に示されている永久磁石の反発力等を利用したものがある。
【0003】
図5は、上記公報に記載されている従来のエレベータの安全装置を示す側面図である。
図5において、エレベータは昇降路1、かご2A、かご2B、かご用磁石である永久磁石N極3Aおよび永久磁石S極3B、昇降路底用磁石である永久磁石N極4Aおよび永久磁石S極4Bで構成されている。
【0004】
ここでは、かご運行制御の異常等により、かご同士が接近した場合、かご同士の永久磁石の反発力より、その衝突を回避している。また、万一停電しても昇降路底用磁石とかご用磁石の反発力により、かごの落下速度を低減し、昇降路底部の衝突加速度を減ずるようにしている。
【0005】
【発明が解決しようとする課題】
ところで、上記のような従来のエレベータの安全装置の場合には、かご重量分を停止あるいは減速させる磁石等が余分に必要となり、このため、かご重量が増大し、また、コスト的にも高価となる等の問題点があった。
【0006】
この発明は、上記のような問題点を解決するためになされたものであり、かごの重量を増大させることなく、安価なエレベータの安全装置を提供することを目的とする。
【0007】
【課題を解決するための手段】
この発明に係るエレベータの安全装置は、昇降路内に複数のかごを有するマルチカー方式エレベータにおいて、上記複数のかごに設けられ、該かご同士が接近したときに他方のかごにより押される押し棒と、上記押し棒に連結され、該押し棒が押されると作動して上記かごの動きを停止させる非常止め作動機構とを備えたものである。
【0008】
また、この発明に係るエレベータの安全装置は、上記非常止め作動機構が、上記押し棒の上下の動きに同期して支点を中心に回転するレバーと、該レバーに連結され、上記かごが上方向または下方向に行くのを停止させる非常止め部材とを備えたものである。
【0009】
また、この発明に係るエレベータの安全装置は、上記押し棒が、上記非常止め部材を作動させる力よりも大きな力が作用すると縮む伸縮機構を有するものである。
【0010】
【発明の実施の形態】
以下、この発明の実施の形態を、図に基づいて説明する。
実施の形態1.
図1〜図4は、この発明の実施の形態1によるエレベータの安全装置を示す側面図である。
各図において、11は上部に位置するかご、12は下部に位置するかご、13はレール、14はかごが下方向へ行くのを停止させる非常止め部材、15はかごが上方向へ行くのを停止させる非常止め部材である。この非常止め部材14,15としては、かご11,12を停止させるブレーキとして元々かご11,12に設けてある非常止め部材を用いてよい。
【0011】
また、16はレール当たり金、17はレール当たり金16を上下に動かすレバー、18はレール当たり金16を上下に動かすレバーの支点、19は非常止め作動機構に連結されたレバー押し棒、20はかご枠とレバー押し棒19とレバー17とを連結するレバー、21はレバーの支点、22はレバー押し棒19のガイドである。なお、非常止め部材14,15とレバー17,20は実質的に非常止め作動機構を構成している。
【0012】
図1は、上部に位置するかご11と、下部に位置するかご12が通常の距離にある状態を示しており、かご11,12が上方向に行くのを停止させる非常止め部材15と、下方向に行くのを停止させる非常止め部材14と、非常止め作動機構に連結されたレバー押し棒9とが設けられている。
【0013】
図2は、図1のA部拡大図であり、非常止め部材14、非常止め作動時にレール13を挟み込む部分であるレール当たり金16、かごに固定された支点18を中心にレール当たり金16を上下に動かすレバー17、レバー押し棒19、かごに固定された支点21を中心に回転し、レバー押し棒19とかご11の枠とレバー17を連結するレバー20、レバー押し棒19の上下の動きをガイドするガイド22を示している。
【0014】
図3は、上下のかごが接近して、レバー押し棒19がかごにより押されてレール当たり金16を上下に動かすレバー17を押し上げ、非常止め部材14,15が作動し始めた状態を示している。
【0015】
図4は、図3の状態から完全にかごが停止した状態を示している。レバー押し棒19は、非常止め部材14,15を作動させる力よりも大きな力が作用すると縮む伸縮機構を有している。つまり、レバー押し棒19は、図示せずも内部にバネが内蔵されており、大きな力が作用すると縮んで、押し棒が破壊するのを防止する。
【0016】
次に、この発明の実施の形態1によるエレベータの安全装置の動作を説明する。
いま、図1に示す上部のかご11と、下部のかご12が通常の距離にある状態から、図3に示すように、上部のかご11と、下部のかご12が接近すると、レバー押し棒19が、他方のかごによって押され、図2に示すレール当たり金16を上下に動かすレバー17を押し上げ、非常止め部材14,15が作動し始め、図4に示すように、非常止め部材14によりかご11が下方向へ行くのを停止させ、一方、非常止め部材15によりかご12が上方向へ行くのを停止させ、最終的にかご11,12が完全に停止して、かご同士の衝突が未然に防止される。
このようにして、本実施の形態では、かごを停止させるブレーキとして元々かごに設けてある非常止め部材を使用するので、安価に機器を構成することができる。
【0017】
また、非常止め部材が作動してからかごが完全に停止するまでの停止距離があっても、レバー押し棒は内部にバネが内蔵され、大きな力が作用すると縮むので、その破壊が防止される。
【0018】
【発明の効果】
以上説明したように、この発明によれば、昇降路内に複数のかごを有するマルチカー方式エレベータにおいて、上記複数のかごに設けられ、該かご同士が接近したときに他方のかごにより押される押し棒と、上記押し棒に連結され、該押し棒が押されると作動して上記かごの動きを停止させる非常止め作動機構とを備えたので、かごの重量を増大させることなく、安価なエレベータの安全装置が得られるという効果がある。
【0019】
また、この発明によれば、上記非常止め作動機構が、上記押し棒の上下の動きに同期して支点を中心に回転するレバーと、該レバーに連結され、上記かごが上方向または下方向に行くのを停止させる非常止め部材とを備えたので、かごの軽量化、コストの低廉化に寄与できるという効果がある。
【0020】
また、この発明によれば、上記押し棒が、上記非常止め部材を作動させる力よりも大きな力が作用すると縮む伸縮機構を有するので、完全にかごが停止するまでの停止距離があり、押し棒が必要以上に押されても、押し棒の破壊を防止することができるという効果がある。
【図面の簡単な説明】
【図1】 この発明の実施の形態1によるエレベータの安全装置における上部と下部のかごが通常の距離にある状態を示す側面図である。
【図2】 図1の符号Aの枠で囲んだ部分を拡大して示す側面図である。
【図3】 この発明の実施の形態によるエレベータの安全装置における非常止め部材の作動開始状態を示す側面図である。
【図4】 この発明の実施の形態1によるエレベータの安全装置における非常止め部材が作動し、かごが停止した状態を示す側面図である。
【図5】 従来のエレベータの安全装置を示す側面図である。
【符号の説明】
11,12 かご、 13 レール、 14,15 非常止め部材、
16 レール当たり金、 17,20 レバー、 19 レバー押し棒、
22 ガイド。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator safety device, and more particularly to a multi-car elevator safety device having a plurality of cars in a hoistway.
[0002]
[Prior art]
Usually, in a multi-car type elevator having a plurality of cars in a hoistway, an elevator safety device for preventing collision between cars or reducing impact at the time of collision is disclosed in, for example, Japanese Patent Laid-Open No. 7-157243. Some use the repulsive force of permanent magnets.
[0003]
FIG. 5 is a side view showing a conventional elevator safety device described in the above publication.
In FIG. 5, the elevator is a hoistway 1, a car 2A, a car 2B, a permanent magnet N pole 3A and a permanent magnet S pole 3B which are car magnets, a permanent magnet N pole 4A and a permanent magnet S pole which are hoistway bottom magnets. 4B.
[0004]
Here, when the cars approach each other due to an abnormality in the car operation control, the collision is avoided by the repulsive force of the permanent magnets between the cars. In addition, even if a power failure occurs, the rebound of the hoistway bottom magnet and the car magnet reduces the car falling speed and reduces the impact acceleration at the hoistway bottom.
[0005]
[Problems to be solved by the invention]
By the way, in the case of the conventional elevator safety apparatus as described above, an extra magnet or the like for stopping or decelerating the car weight is required, which increases the car weight and is also expensive in cost. There were problems such as.
[0006]
The present invention has been made to solve the above-described problems, and an object thereof is to provide an inexpensive elevator safety device without increasing the weight of a car.
[0007]
[Means for Solving the Problems]
The elevator safety device according to the present invention is a multi-car type elevator having a plurality of cars in a hoistway, and is provided in the plurality of cars, and a push bar that is pushed by the other car when the cars approach each other. And an emergency stop actuating mechanism that is connected to the push bar and operates when the push bar is pushed to stop the movement of the car.
[0008]
In the elevator safety device according to the present invention, the emergency stop actuating mechanism is coupled to a lever that rotates around a fulcrum in synchronization with the vertical movement of the push rod, and the car moves upward. Alternatively, an emergency stop member that stops going downward is provided.
[0009]
Moreover, the safety device for an elevator according to the present invention includes an expansion / contraction mechanism that contracts when the push bar is applied with a force larger than a force that operates the emergency stop member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 to 4 are side views showing an elevator safety device according to Embodiment 1 of the present invention.
In each figure, 11 is a car located in the upper part, 12 is a car located in the lower part, 13 is a rail, 14 is an emergency stop member for stopping the car from going downward, and 15 is a car going upward. An emergency stop member to be stopped. As the emergency stop members 14 and 15, an emergency stop member originally provided on the cars 11 and 12 as a brake for stopping the cars 11 and 12 may be used.
[0011]
Reference numeral 16 denotes a rail contact, 17 a lever for moving the rail contact 16 up and down, 18 a fulcrum of a lever for moving the rail contact 16 up and down, 19 a lever push bar connected to an emergency stop operating mechanism, and 20 A lever for connecting the car frame, the lever push bar 19 and the lever 17, 21 is a fulcrum of the lever, and 22 is a guide for the lever push bar 19. The emergency stop members 14 and 15 and the levers 17 and 20 substantially constitute an emergency stop operating mechanism.
[0012]
FIG. 1 shows a state in which a car 11 located at the upper part and a car 12 located at the lower part are at a normal distance, and an emergency stop member 15 for stopping the cars 11 and 12 from going upward, There are provided an emergency stop member 14 that stops going in the direction and a lever push bar 9 connected to the emergency stop operating mechanism.
[0013]
FIG. 2 is an enlarged view of part A in FIG. 1. The emergency stop member 14, the rail stopper 16 that sandwiches the rail 13 during the emergency stop operation, and the rail stopper 16 centered on the fulcrum 18 fixed to the car A lever 17 that moves up and down, a lever push bar 19, and a fulcrum 21 fixed to the car, rotates around a lever 21 that connects the lever push bar 19 and the frame of the car 11 to the lever 17, and the vertical movement of the lever push bar 19. The guide 22 which guides is shown.
[0014]
FIG. 3 shows a state in which the upper and lower cars approach, the lever push bar 19 is pushed by the car, the lever 17 for moving the rail stopper 16 up and down is pushed up, and the emergency stop members 14 and 15 start to operate. Yes.
[0015]
FIG. 4 shows a state where the car is completely stopped from the state of FIG. The lever push bar 19 has a telescopic mechanism that contracts when a force larger than the force that operates the emergency stop members 14 and 15 is applied. That is, the lever push bar 19 has a spring built therein, not shown, and contracts when a large force is applied to prevent the push bar from being broken.
[0016]
Next, the operation of the elevator safety device according to Embodiment 1 of the present invention will be described.
When the upper car 11 and the lower car 12 shown in FIG. 1 are at a normal distance and the upper car 11 and the lower car 12 approach each other as shown in FIG. 2 is pushed by the other car, and the lever 17 for moving the rail stopper 16 shown in FIG. 2 up and down is pushed up, and the emergency stop members 14 and 15 start to operate. As shown in FIG. 11 is stopped, while the emergency stop member 15 stops the car 12 from going upward, and finally the cars 11 and 12 are completely stopped, and the cars collide with each other. To be prevented.
In this way, in the present embodiment, the emergency stop member originally provided in the car is used as a brake for stopping the car, so that the device can be configured at low cost.
[0017]
In addition, even if there is a stop distance from when the emergency stop member is activated until the car stops completely, the lever push bar has a built-in spring and contracts when a large force is applied, preventing its destruction. .
[0018]
【The invention's effect】
As described above, according to the present invention, in a multi-car system elevator having a plurality of cars in a hoistway, a push that is provided on the plurality of cars and is pushed by the other car when the cars approach each other. Since it has a bar and an emergency stop operating mechanism that is connected to the push bar and operates when the push bar is pushed to stop the movement of the car, an inexpensive elevator can be used without increasing the weight of the car. There is an effect that a safety device is obtained.
[0019]
Further, according to the present invention, the emergency stop operating mechanism is coupled to the lever that rotates around the fulcrum in synchronization with the vertical movement of the push rod, and the car is upward or downward. Since the emergency stop member that stops going is provided, there is an effect that the weight of the car can be reduced and the cost can be reduced.
[0020]
Further, according to the present invention, since the push bar has an expansion / contraction mechanism that contracts when a force larger than the force that operates the emergency stop member is applied, there is a stop distance until the car completely stops, and the push bar Even if it is pushed more than necessary, the push rod can be prevented from being broken.
[Brief description of the drawings]
FIG. 1 is a side view showing a state where an upper car and a lower car are at a normal distance in an elevator safety device according to Embodiment 1 of the present invention;
2 is an enlarged side view showing a portion surrounded by a frame A in FIG.
FIG. 3 is a side view showing an operation start state of an emergency stop member in the elevator safety device according to the embodiment of the present invention.
FIG. 4 is a side view showing a state in which an emergency stop member in the safety device for an elevator according to Embodiment 1 of the present invention is activated and the car is stopped.
FIG. 5 is a side view showing a conventional elevator safety device.
[Explanation of symbols]
11, 12 car, 13 rail, 14, 15 emergency stop member,
16 Gold per rail, 17, 20 lever, 19 lever push rod,
22 Guide.

Claims (3)

昇降路内に複数のかごを有するマルチカー方式エレベータにおいて、
上記複数のかごに設けられ、該かご同士が接近したときに他方のかごにより押される押し棒と、
上記押し棒に連結され、該押し棒が押されると作動して上記かごの動きを停止させる非常止め作動機構と
を備えたことを特徴とするエレベータの安全装置。
In the multi-car elevator with multiple cars in the hoistway,
A push bar provided in the plurality of cars and pushed by the other car when the cars approach each other;
An elevator safety device, comprising: an emergency stop operating mechanism that is connected to the push bar and operates when the push bar is pressed to stop the movement of the car.
上記非常止め作動機構は、上記押し棒の上下の動きに同期して支点を中心に回転するレバーと、該レバーに連結され、上記かごが上方向または下方向に行くのを停止させる非常止め部材とを備えたことを特徴とする請求項1記載のエレベータの安全装置。The emergency stop operating mechanism includes a lever that rotates about a fulcrum in synchronization with the vertical movement of the push rod, and an emergency stop member that is connected to the lever and stops the car from going upward or downward. The elevator safety device according to claim 1, further comprising: 上記押し棒は、上記非常止め部材を作動させる力よりも大きな力が作用すると縮む伸縮機構を有することを特徴とする請求項1または2記載のエレベータの安全装置。The elevator safety device according to claim 1 or 2, wherein the push bar has a telescopic mechanism that contracts when a force larger than a force that operates the emergency stop member is applied.
JP2002166816A 2002-06-07 2002-06-07 Elevator safety device Expired - Fee Related JP4104911B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002166816A JP4104911B2 (en) 2002-06-07 2002-06-07 Elevator safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002166816A JP4104911B2 (en) 2002-06-07 2002-06-07 Elevator safety device

Publications (2)

Publication Number Publication Date
JP2004010272A JP2004010272A (en) 2004-01-15
JP4104911B2 true JP4104911B2 (en) 2008-06-18

Family

ID=30434256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002166816A Expired - Fee Related JP4104911B2 (en) 2002-06-07 2002-06-07 Elevator safety device

Country Status (1)

Country Link
JP (1) JP4104911B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4552793B2 (en) * 2005-07-22 2010-09-29 株式会社日立製作所 Multi-car elevator safety system
WO2007050060A1 (en) * 2005-10-25 2007-05-03 Otis Elevator Company Multiple car elevator safety system and method
EG24538A (en) * 2006-09-08 2009-09-03 Inventio Ag Method of operating a lift installation, a lift installation operable by this method and safety equipment for this lift installation
RU2484002C2 (en) 2007-12-05 2013-06-10 Отис Элевейтэ Кампэни Device for controlling movement of lift cabin group in single well
DE112012006051B4 (en) * 2012-03-19 2019-05-09 Mitsubishi Electric Corporation elevator
WO2016118496A1 (en) 2015-01-21 2016-07-28 Otis Elevator Company Assembly for actuating an elevator car brake
DE112020006957T5 (en) 2020-03-23 2023-01-05 Mitsubishi Electric Corporation Safety monitoring device for elevators
JP7324434B1 (en) 2022-02-21 2023-08-10 フジテック株式会社 elevator

Also Published As

Publication number Publication date
JP2004010272A (en) 2004-01-15

Similar Documents

Publication Publication Date Title
EP3112306B1 (en) Electromagnetic safety trigger
EP3377434B1 (en) Electronic safety actuator
EP3231756B1 (en) Electronic safety actuation device with a power assembly
EP3447017B1 (en) Synchronized electronic safety actuator
US11066274B2 (en) Electromagnetic safety trigger
JP4712314B2 (en) ELEVATOR EQUIPMENT HAVING BUFFER FOR FORMING PROTECTION BAND IN ELEVATOR EQUIPMENT AND METHOD OF PRODUCING Protective Band
CN100595120C (en) Elevator facility, method for operating the elevator facility, and safety device for the elevator facility
EP3141511B1 (en) Housing assembly for a safety actuation device
CN111620216B (en) Elevator safety device with translating safety device block
WO2019176160A1 (en) Emergency stop device, and elevator
JP2004338939A (en) Safety device for elevator
WO2007102211A1 (en) Emergency stop device for elevator
EP3569547B1 (en) Safety assembly for braking an elevator car and corresponding method
JP6058176B2 (en) Elevator equipment
JP4104911B2 (en) Elevator safety device
JP4672656B2 (en) Elevator safety device
JP4209251B2 (en) Elevator emergency stop device
JP4284810B2 (en) Elevator system
JP2006341953A (en) Emergency stop device of elevator
JP4315839B2 (en) Elevator maintenance control equipment
US11858781B2 (en) Frictionless electronic safety actuator
JP2006044894A (en) Elevator device
KR200386599Y1 (en) Elevator type Interactive emergency stop apparatus
JP2006315796A (en) Multi-car elevator device
JPH05147857A (en) Safety device in elevator

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050527

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080313

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080318

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080326

R150 Certificate of patent or registration of utility model

Ref document number: 4104911

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110404

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120404

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120404

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130404

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130404

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140404

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees