WO2014033846A1 - Device for stopping elevator in emergency and elevator - Google Patents
Device for stopping elevator in emergency and elevator Download PDFInfo
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- WO2014033846A1 WO2014033846A1 PCT/JP2012/071737 JP2012071737W WO2014033846A1 WO 2014033846 A1 WO2014033846 A1 WO 2014033846A1 JP 2012071737 W JP2012071737 W JP 2012071737W WO 2014033846 A1 WO2014033846 A1 WO 2014033846A1
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- braking
- brake
- guide rail
- elevator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
Definitions
- the present invention relates to an emergency stop device for an elevator that presses a brake on a guide rail when an excessive speed or the like of the elevator's elevator body is detected, and brakes the elevator body by frictional force, and an elevator using the same.
- An elevator emergency stop device is provided that presses against the rail and brakes the elevator by frictional force.
- a plurality of braking devices are arranged in parallel in the vertical direction respectively on the left and right of the elevating body, and each braking device has a braking element capable of sliding contact with a guide rail.
- the guide rail is installed between a plurality of braking devices juxtaposed in the vertical direction.
- a polishing means for polishing is provided.
- polishing means for polishing the guide rail between the braking devices arranged in parallel in the vertical direction By providing polishing means for polishing the guide rail between the braking devices arranged in parallel in the vertical direction in this manner, the brakes of the braking device located below are pressed against the guide rail and the sliding contact surface of the guide rail However, the guide rail is polished by the polishing means installed between the upper and lower brakes, so that the braking performance of the upper braking device can be sufficiently exhibited.
- the present invention has been made in consideration of the problems in the prior art, and its object is to provide an emergency stop device for an elevator capable of sufficiently exhibiting the braking performance of each braking device while reducing the number of parts. It is to provide.
- the emergency stop device for elevator according to the present invention and the elevator using the same have braking devices arranged in parallel in the vertical direction on the left and right of the elevator, and each braking device is a guide
- An emergency stop device of an elevator having a brake capable of sliding contact with a rail, pressing the brake against the guide rail when detecting an excessive speed or the like of an elevator elevator, and braking the elevator by frictional force.
- the gap dimension between the brake element of the upper brake device and the guide rail in the standby state is set smaller than the gap dimension between the brake element of the lower brake device and the guide rail, and the upper brake device starts braking first. It is characterized in that the braking device of the lower stage starts the braking after the braking of the braking device of the upper stage starts.
- the upper brake device starts braking first Then, after the start of braking of the upper braking device, the lower braking device starts braking, and the braking performance of each of the upper and lower braking devices can be sufficiently exhibited.
- this makes it possible to stably perform efficient braking while reducing the number of parts, that is, to miniaturize the device, and to provide a highly reliable elevator emergency stop device. Also, as a result, cost can be reduced.
- FIG. 1 is a schematic view of the elevator shaft in which the safety gear of the present invention is installed.
- FIG. 2 is a schematic block diagram showing an embodiment of an elevator in which the safety gear of the present invention is installed.
- FIG. 3 is a schematic configuration view of a main part showing an embodiment of the safety device for an elevator according to the present invention.
- FIG. 4 is a main part schematic configuration diagram showing the state of the braking device at the time of emergency braking in an embodiment of the emergency stop device for an elevator according to the present invention.
- FIG. 1 is a schematic configuration view in a hoistway of an example of an elevator in which the safety gear device of the present invention is installed.
- the elevator in this example includes a hoistway 10 formed in a building, a machine room 7 provided immediately above the hoistway 10, and an elevating body for moving the hoistway 10 up and down, for example, a car 1 and a counterweight 5; It has a main rope 3 connected to the car 1 and the counterweight 5, and a hoist 6 installed in the machine room 7 and driving the main rope 3.
- a guide rail 2 for lifting and lowering body which is erected in the hoistway 10 and guides lifting and lowering of the car 1 and a guide rail 8 for standing weight erected in the hoistway 10 and guiding lifting and lowering of the counterweight 4.
- a speed governor 9 for monitoring the elevation speed of the car 1 and stopping the car 1 in an emergency when the car 1 falls into a predetermined overspeed state is provided on the car 1, and the car 1 is And a safety gear 4 for mechanically stopping the vehicle.
- the governor 9 is disposed in the hoistway 10, as shown in FIG. 1 as an example, and is connected to the pulling rod 12 of the car via the coupling member 11 and has an endless governor rope 9a and a horizontal axis. And fixed to the lower end of the hoistway 10 with the sheave 9b fixed to the upper end of the governor rope 9a and wound around the lower end of the governor rope 9a.
- a car 9c, a not-shown overspeed detector, a governor rope gripping mechanism for a governor rope 9a, and the like are provided.
- FIG. 2 is a schematic configuration view of an elevator in which the safety gear of the present invention is installed and an example of the safety gear.
- the connection member 11 and the pull-up rod 12 are not shown.
- an emergency stop device for braking the car 1 in the event of an abnormality is attached to the lower portion of the car 1, and the braking device 4 of this safety means can be pressed against the guide rail 2.
- at least two braking devices 4 are vertically juxtaposed on the left and right of the elevating body. That is, four lower right braking device 4a, upper right braking device 4b, lower left braking device 4c, and upper left braking device 4d are provided.
- the braking device 4 is provided with an upper braking member 41 and a lower braking member 42 disposed in a pair so as to sandwich the guide rail 2, and the braking members 41 and 42 as guide rails when abnormal. 2, pulling-up portions 43 and 44 for sliding contact with each other, a guide roller 45, an elastic body 46 for applying a pressing force to the braking members 41 and 42 in two directions of the guide rail during braking, a guide member 47 , 48 are equipped.
- a control mechanism of the braking device is constituted by the pulling-up portions 43 and 44, the guide roller 45, the elastic member 46, the guide members 47 and 48, a pulling-up rod not shown, and the like.
- the upper and lower brakes 41 and 42 have a wedge shape and have a vertical braking surface opposite to the guide rail 2.
- the upper and lower brake members 41.42 are guided by the pull-up members 43 and 44 to the guide roller 45 and simultaneously pulled up along the slopes of the guide members 47 and 48, and the braking surface is in sliding contact with the guide rail 2. The braking force is generated.
- the gap dimension L1 between the upper braking member 41 and the guide rail 2 of the upper braking devices 4b and 4d in the standby state is smaller than that of the lower braking devices 4a and 4c.
- the gap dimension L2 between the lower brake 42 and the guide rail 2 is set smaller. This is because the upper braking member 41 is in sliding contact with the guide rail 2 earlier than the lower braking member 42 during emergency braking.
- the upper and lower brake members 41 and 42 of the braking device 4 are in a standby state separated from the guide rail 2 as shown in FIG. 3.
- the governor rope 9a is restrained via the governor gripping operation in order to emergency brake the car 1 by the speed governor 9 shown in FIG. .
- the pull-up rod 12 connected to the connection member 11 shown in FIG. 1 simultaneously pulls up the pull-up means 43, 44 of the control means 4.
- the upper brake 41 is smaller than the lower brake 42.
- the upper brake 41 slides on the guide rail 2. For example, by setting L1 to about 5 mm and setting L2 to about 3 mm larger than L1, the upper braking device first starts braking, and after the braking of the upper braking device starts, the lower braking is smoothly performed. The device starts braking.
- the upper braking devices 4 b and 4 d can sufficiently press the upper braking member 41 against the smooth guide rail 2 to obtain a braking force.
- the lower brake devices 4a and 4c are below the upper brake devices 4b and 4d, it goes without saying that the lower brake element 42 is pressed against the smooth guide rail 2 to obtain a braking force.
- the lower brake devices 4a and 4c are in sliding contact with the guide rail 2 with the lower brake members 42 delayed from the upper brake members 41 of the upper brake devices 4b and 4d, since the time difference is small, the braking distance The upper braking devices 4b and 4d have a greater effect of being able to press the upper braking member 41 against the smooth guide rail 2 to obtain a braking force.
- the upper lower braking element 41 of the upper braking devices 4b and 4d and the lower lower braking element 42 of the lower braking devices 4a and 4c are pressed against the smooth guide rail 2
- the braking performance of each of the braking device 4a, the upper right braking device 4b, the lower left braking device 4c, and the upper left braking device 4d can be sufficiently exhibited.
- efficient braking can be stably performed, and the reliability of the emergency stop device can be improved.
- the method of setting the gap dimension L1 between the upper brake element 41 of the upper brake devices 4b and 4d and the guide rail 2 smaller than the gap dimension L2 between the lower brake element 42 of the lower brake devices 4a and 4c and the guide rail 2 Therefore, the braking performance of each braking device 4 can be fully exhibited, and this achieves efficient braking stably while achieving low cost and downsizing of the device, and a highly reliable emergency stop. It is possible to make it a device.
- the length M1 of the upper stage brake 41 is longer than the length M2 of the lower stage brake 42.
- the dimensions L1 ⁇ L2 the dimensions M1> M2 can be obtained in order to further increase the braking force of the upper-stage braking devices 4b and 4d at which the braking starts first.
- M1 M2
- the braking force of the upper braking devices 4b and 4d may be sufficient.
- the upper and lower brakes 41 and 42 may be made of the same material.
- the upper-stage braking device 42 of the lower-stage braking device 4a and 4c is made of a material It is also possible to select a material larger than the friction coefficient of the brake 41 of the braking devices 4b and 4d, or M1 ⁇ M2.
- two braking devices 4 are provided side by side in the vertical direction as an example, but it may be increased to three or four as needed.
Abstract
In the present invention, individual brake devices exhibit sufficient braking performance using fewer parts. A device for stopping an elevator in an emergency is provided with a row of multiple vertically arranged braking devices (4a-4d) to the right and left of an ascending/descending body (1), the braking devices (4a-4d) having a braking element (41, 42) capable of sliding on a guide rail (2). The braking devices (4a-4d) press the braking element (41, 42) to the guide rail (2) when the elevator is detected to be traveling at excessive speed or in other instances, and brake the ascending/descending body (1) using frictional force. The gap (L1) between the guide rail (2) and the braking element (41) of the upper braking devices (4b, 4d) in a standby state is less than the gap (L2) between the guide rail (2) and the braking element (42) of the lower braking devices (4a, 4c).
Description
本発明は、エレベーターの昇降体の過速等を検出した際に制動子をガイドレールに押し付け、摩擦力により昇降体を制動するエレベーターの非常止め装置およびそれを用いたエレベーターに関する。
The present invention relates to an emergency stop device for an elevator that presses a brake on a guide rail when an excessive speed or the like of the elevator's elevator body is detected, and brakes the elevator body by frictional force, and an elevator using the same.
一般に、ロープ式エレベーターにおいては、何らかの故障で昇降体が過速降下した場合に、その速度が定格速度の１．４倍を越えないうちに調速機のガバナロープ掴み動作を介して制動子をガイドレールに押し付け、摩擦力により昇降体を制動するエレベーターの非常止め装置が設けられている。
Generally, in a rope type elevator, when the lift lowers due to any failure, the brake is guided through the governor rope gripping operation of the governor before the speed exceeds 1.4 times the rated speed. An elevator emergency stop device is provided that presses against the rail and brakes the elevator by frictional force.
ところで、近年、ビルの高層化がさらに進む中、利用者の利便性を図るため、高速かつ大容量のエレベーターが求められている。このようなエレベーターにおいては、非常止め装置の動作時に昇降体を所定の制動距離で制動させるため、大きな制動力を有した非常止め装置が求められる。そこで、従来、制動装置を複数組用いることで、高速かつ大容量のエレベーターの昇降体の制動に対応させたものが提案されている。
By the way, in recent years, while building heights are further increasing, a high-speed and large-capacity elevator is required in order to improve user convenience. In such an elevator, a safety gear having a large braking force is required in order to brake the elevator at a predetermined braking distance when the safety gear is operated. Under the circumstances, it has been conventionally proposed to cope with the braking of the elevator of a high-speed and large-capacity elevator by using a plurality of braking devices.
例えば、特許文献１に示されるように、昇降体の左右のそれぞれの上下方向に複数並設された制動装置を備え、各制動装置がガイドレールに摺接可能な制動子を有し、エレベーターの過速等を検出した際に各制動子をガイドレールに押しつけて摩擦力により昇降体を制動するエレベーターの非常止め装置において、上下方向に複数並設された制動装置間に設置され、ガイドレールを研磨する研磨手段を設ける様にしたものがある。この様に上下方向に複数並設される制動装置間に、ガイドレールを研磨する研磨手段を設けることにより、下方に位置する制動装置の制動子がガイドレールに押しつけられてガイドレールの摺接面が荒れてしまうが、上下の制動子間に設置された研磨手段によりガイドレールが研磨され、上方の制動装置の有する制動性能を十分に発揮させるようにしたものがある。
For example, as disclosed in Patent Document 1, a plurality of braking devices are arranged in parallel in the vertical direction respectively on the left and right of the elevating body, and each braking device has a braking element capable of sliding contact with a guide rail. In an emergency stop device for an elevator that presses each braking element against a guide rail to detect an overspeed or the like and brakes the elevating body by frictional force, the guide rail is installed between a plurality of braking devices juxtaposed in the vertical direction. There is one in which a polishing means for polishing is provided. By providing polishing means for polishing the guide rail between the braking devices arranged in parallel in the vertical direction in this manner, the brakes of the braking device located below are pressed against the guide rail and the sliding contact surface of the guide rail However, the guide rail is polished by the polishing means installed between the upper and lower brakes, so that the braking performance of the upper braking device can be sufficiently exhibited.
しかしながら、前述したエレベーターの非常止め装置では、制動装置の制動性能を十分に発揮でき、非常止め装置の信頼度を確保できるが、複数並設される制動装置間に、ガイドレールを研磨する研磨手段を設けることから、装置の部品員数が多くなり、コスト低減や装置の小型化の観点では課題がある。
However, in the elevator emergency stop device described above, although the braking performance of the braking device can be sufficiently exhibited and the reliability of the emergency stop device can be secured, a polishing means for polishing the guide rail between a plurality of braking devices installed side by side As a result, the number of parts of the device increases, and there are problems in terms of cost reduction and downsizing of the device.
本発明は、従来技術における課題を考慮し検討がなされたもので、その目的は、部品員数を少なくするとともに、各制動装置の有する制動性能を十分に発揮させることのできるエレベーターの非常止め装置を提供することにある。
The present invention has been made in consideration of the problems in the prior art, and its object is to provide an emergency stop device for an elevator capable of sufficiently exhibiting the braking performance of each braking device while reducing the number of parts. It is to provide.
前記目的を達成するために、本発明のエレベーターの非常止め装置およびそれを用いたエレベーターでは、昇降体の左右にあってそれぞれ上下方向に複数並設された制動装置を備え、各制動装置はガイドレールに摺接可能な制動子を有し、エレベーターの昇降体の過速等を検出した際に前記制動子を前記ガイドレールに押し付け、摩擦力により前記昇降体を制動するエレベーターの非常止め装置において、待機状態における上段制動装置の制動子と前記ガイドレールとの間隙寸法を、下段制動装置の制動子と前記ガイドレールとの間隙寸法より小さく設定し、上段の制動装置が先に制動開始し、上段の制動装置の制動開始の後に、下段の制動装置が制動開始することを特徴としている。
In order to achieve the above object, the emergency stop device for elevator according to the present invention and the elevator using the same have braking devices arranged in parallel in the vertical direction on the left and right of the elevator, and each braking device is a guide An emergency stop device of an elevator having a brake capable of sliding contact with a rail, pressing the brake against the guide rail when detecting an excessive speed or the like of an elevator elevator, and braking the elevator by frictional force. The gap dimension between the brake element of the upper brake device and the guide rail in the standby state is set smaller than the gap dimension between the brake element of the lower brake device and the guide rail, and the upper brake device starts braking first. It is characterized in that the braking device of the lower stage starts the braking after the braking of the braking device of the upper stage starts.
本発明によれば、上段制動装置の制動子とガイドレールとの間隙寸法を、下段制動装置の制動子とガイドレールとの間隙寸法より小さく設定することにより、上段の制動装置が先に制動開始し、上段の制動装置の制動開始の後に、下段の制動装置が制動開始し、上下段の各制動装置の有する制動性能を十分に発揮させることができる。
According to the present invention, by setting the gap dimension between the brake element and the guide rail of the upper stage braking device smaller than the gap dimension between the brake element and the guide rail of the lower stage braking device, the upper brake device starts braking first Then, after the start of braking of the upper braking device, the lower braking device starts braking, and the braking performance of each of the upper and lower braking devices can be sufficiently exhibited.
本発明では、これによって、少ない部品点数、すなわち装置の小型化を図りつつ、効率的な制動を安定して行い、信頼性の高いエレベーターの非常止め装置とすることができきる。また、結果として、コストの低減が可能である。
According to the present invention, this makes it possible to stably perform efficient braking while reducing the number of parts, that is, to miniaturize the device, and to provide a highly reliable elevator emergency stop device. Also, as a result, cost can be reduced.
以下、本発明に係るエレベーターの非常止め装置の実施例を図に基づき説明する。
Hereinafter, an embodiment of a safety device for an elevator according to the present invention will be described based on the drawings.
以下の実施例は本発明の実施形態の具体例を示すものであり、本発明がこれらの実施例に限定されるものではなく、本明細書に開示される技術的思想の範囲内において当業者による様々な変更および修正が可能である。
The following examples show specific examples of the embodiments of the present invention, and the present invention is not limited to these examples, and those skilled in the art can be within the scope of the technical idea disclosed herein. Various changes and modifications are possible.
また、実施例を説明するための全図において、同一の機能を有するものは、同一の符号を付け、その繰り返しの説明は省略することがある。
Moreover, in all the drawings for describing the embodiments, components having the same function are denoted by the same reference numerals, and repeated description thereof may be omitted.
図１は、本発明の非常止め装置が設置されるエレベーターの一例の昇降路内の概略構成図である。この例でのエレベーターは、建屋に形成される昇降路１０と、昇降路１０の直上に設けられた機械室７と、昇降路１０を昇降する昇降体、例えば乗りかご１及びつり合いおもり５と、乗りかご１とつり合いおもり５とに連結される主ロープ３と、機械室７に設置され、主ロープ３を駆動する巻上機６とを有する。さらに、昇降路１０に立設され、乗りかご１の昇降を案内する昇降体用ガイドレール２と、昇降路１０に立設され、つり合いおもり４の昇降を案内するつり合いおもり用ガイドレール８を備える。さらに、乗りかご１の昇降速度を監視し、乗りかご１が所定の過速状態に陥った際に乗りかご１を非常停止させる調速機９と、乗りかご１に設けられ、乗りかご１を機械的に非常停止させる非常止め装置４とを備えている。
FIG. 1 is a schematic configuration view in a hoistway of an example of an elevator in which the safety gear device of the present invention is installed. The elevator in this example includes a hoistway 10 formed in a building, a machine room 7 provided immediately above the hoistway 10, and an elevating body for moving the hoistway 10 up and down, for example, a car 1 and a counterweight 5; It has a main rope 3 connected to the car 1 and the counterweight 5, and a hoist 6 installed in the machine room 7 and driving the main rope 3. Furthermore, it is provided with a guide rail 2 for lifting and lowering body which is erected in the hoistway 10 and guides lifting and lowering of the car 1 and a guide rail 8 for standing weight erected in the hoistway 10 and guiding lifting and lowering of the counterweight 4. . Furthermore, a speed governor 9 for monitoring the elevation speed of the car 1 and stopping the car 1 in an emergency when the car 1 falls into a predetermined overspeed state is provided on the car 1, and the car 1 is And a safety gear 4 for mechanically stopping the vehicle.
調速機９は、図１に一例を示すように、昇降路１０に配置され、連結部材１１を介して乗りかごの引き上げロッド１２に連結された無端状の調速機ロープ９ａと、水平軸に固定され、調速機ロープ９ａの上端の湾曲部が巻き掛けられた綱車９ｂと、昇降路１０の下部に配設され、調速機ロープ９ａの下端の湾曲部が巻き掛けられた張り車９ｃと、図示しない過速検出器や調速機ロープ９aに対するガバナーロープ掴み機構等を備えている。
The governor 9 is disposed in the hoistway 10, as shown in FIG. 1 as an example, and is connected to the pulling rod 12 of the car via the coupling member 11 and has an endless governor rope 9a and a horizontal axis. And fixed to the lower end of the hoistway 10 with the sheave 9b fixed to the upper end of the governor rope 9a and wound around the lower end of the governor rope 9a. A car 9c, a not-shown overspeed detector, a governor rope gripping mechanism for a governor rope 9a, and the like are provided.
図２は、本発明の非常止め装置が設置されるエレベーターとその非常止め装置の一例の概略構成図である。なお、図２、図３においては、連結部材１１と引き上げロッド１２は図示を省略してある。図２に示される様に、乗りかご１の下部に、異常の際に乗りかご１を制動する非常止め装置が取り付けられており、この非常止め装置の制動装置４は、ガイドレール２に押し付け可能な後述する制動子を有し、昇降体の左右において少なくとも制動装置４が上下方向に２つ並設されている。すなわち、右下段制動装置４ａ、右上段制動装置４ｂ、左下段制動装置４ｃ、および左上段制動装置４ｄの４つが設けられている。
FIG. 2 is a schematic configuration view of an elevator in which the safety gear of the present invention is installed and an example of the safety gear. In FIGS. 2 and 3, the connection member 11 and the pull-up rod 12 are not shown. As shown in FIG. 2, an emergency stop device for braking the car 1 in the event of an abnormality is attached to the lower portion of the car 1, and the braking device 4 of this safety means can be pressed against the guide rail 2. Further, at least two braking devices 4 are vertically juxtaposed on the left and right of the elevating body. That is, four lower right braking device 4a, upper right braking device 4b, lower left braking device 4c, and upper left braking device 4d are provided.
また、制動装置４は、図３に示すように、ガイドレール２を挟持するように対となって配置される上段制動子４１および下段制動子４２と、異常時に制動子４１、４２をガイドレール２に摺接させるための引き上げ部４３、４４と、ガイドローラ４５と、制動時に制動子４１、４２に対してガイドレールの２方向に向けて押圧力を付与する弾性体４６と、ガイド部材４７、４８を備えている。これらの引き上げ部４３、４４と、ガイドローラ４５と、弾性体４６と、ガイド部材４７，４８、図示されていない引き上げロッド等により、制動装置の制御機構が構成される。
Further, as shown in FIG. 3, the braking device 4 is provided with an upper braking member 41 and a lower braking member 42 disposed in a pair so as to sandwich the guide rail 2, and the braking members 41 and 42 as guide rails when abnormal. 2, pulling-up portions 43 and 44 for sliding contact with each other, a guide roller 45, an elastic body 46 for applying a pressing force to the braking members 41 and 42 in two directions of the guide rail during braking, a guide member 47 , 48 are equipped. A control mechanism of the braking device is constituted by the pulling-up portions 43 and 44, the guide roller 45, the elastic member 46, the guide members 47 and 48, a pulling-up rod not shown, and the like.
上下段の制動子４１，４２は楔形の形状を有し、ガイドレール２に対向して垂直な制動面を有している。この上下段の制動子４１．４２は、制動時には引き上げ部材４３，４４によってガイドローラ４５に案内されてガイド部材４７，４８の斜面に沿って同時に引き上げられ、制動面がガイドレール２に摺接されて制動力を生じる。
The upper and lower brakes 41 and 42 have a wedge shape and have a vertical braking surface opposite to the guide rail 2. During braking, the upper and lower brake members 41.42 are guided by the pull-up members 43 and 44 to the guide roller 45 and simultaneously pulled up along the slopes of the guide members 47 and 48, and the braking surface is in sliding contact with the guide rail 2. The braking force is generated.
特に、本実施例の非常止め装置は、図３に示すように、待機状態における上段制動装置４ｂ、４ｄの上段制動子４１とガイドレール２との間隙寸法Ｌ１が、下段制動装置４ａ、４ｃの下段制動子４２とガイドレール２との間隙寸法Ｌ２より小さく設定されている。これは、非常制動の際、上段制動子４１が下段制動子４２より先にガイドレール２に摺接するためである。
In particular, as shown in FIG. 3, in the safety gear of the present embodiment, the gap dimension L1 between the upper braking member 41 and the guide rail 2 of the upper braking devices 4b and 4d in the standby state is smaller than that of the lower braking devices 4a and 4c. The gap dimension L2 between the lower brake 42 and the guide rail 2 is set smaller. This is because the upper braking member 41 is in sliding contact with the guide rail 2 earlier than the lower braking member 42 during emergency braking.
本実施例にあっては、通常時、制動装置４の上下段の制動子４１，４２は、図３に示すように、ガイドレール２から離間した待機状態にある。しかし、何らかの故障で乗かご１が過速降下した場合、図１に示した調速機９により乗りかご１を緊急制動するために、ガバナー掴み動作を介して調速機ロープ９aが拘束される。また、乗りかご１の下降により、図１に示した連結部材１１に連結された引き上げロッド１２が制御手段４の引き上げ手段４３、４４を同時に引き上げる。
In the present embodiment, at normal times, the upper and lower brake members 41 and 42 of the braking device 4 are in a standby state separated from the guide rail 2 as shown in FIG. 3. However, if the car 1 is lowered excessively due to any failure, the governor rope 9a is restrained via the governor gripping operation in order to emergency brake the car 1 by the speed governor 9 shown in FIG. . Further, when the car 1 is lowered, the pull-up rod 12 connected to the connection member 11 shown in FIG. 1 simultaneously pulls up the pull-up means 43, 44 of the control means 4.
すなわち、乗りかごの過速降下の速度が定格速度の１．４倍を越えないうちに、図示しない調速機のガバナロープ掴みの動作が生じ、それに連動して引き上げロッド１２の乗りかごに対する相対的な引き上げ動作が起こり、上下段の引き上げ手段４３、４４が上方に同じタイミングでに引き上げられ、制動装置４の制動子４１、４２も上方に同じタイミングで引き上げられて、図４に示すように、ガイドレール２に押し付けられて摩擦力により乗かご１を制動する。
That is, before the speed of the overspeed descent of the car exceeds 1.4 times the rated speed, the operation of the governor rope grip of the governor (not shown) occurs, and in conjunction therewith, the relative position of the pulling rod 12 to the car As a result, the upper and lower pulling means 43 and 44 are pulled upward at the same timing, and the brakes 41 and 42 of the braking device 4 are also pulled upward at the same timing, as shown in FIG. It is pressed against the guide rail 2 and brakes the riding cage 1 by the frictional force.
このとき、上段制動子４１とガイドレール２との間隙寸法Ｌ１が、下段制動子４２とガイドレール２との間隙寸法Ｌ２より小さく設定されていることから、上段制動子４１が下段制動子４２よりも先にガイドレール２に摺接する。例えば、Ｌ１を５ｍｍ程度とし、Ｌ１よりもＬ２を３ｍｍ程度大きく設定しておくことにより、上段の制動装置が先に制動を開始し、上段の制動装置の制動開始の後に、スムーズに下段の制動装置が制動を開始する。
At this time, since the gap dimension L1 between the upper brake 41 and the guide rail 2 is set smaller than the gap dimension L2 between the lower brake 42 and the guide rail 2, the upper brake 41 is smaller than the lower brake 42. First, it slides on the guide rail 2. For example, by setting L1 to about 5 mm and setting L2 to about 3 mm larger than L1, the upper braking device first starts braking, and after the braking of the upper braking device starts, the lower braking is smoothly performed. The device starts braking.
すなわち、時間差を設けることで、上段制動装置４ｂ、４ｄは、平滑なガイドレール２に上段制動子４１を十分に押し付け、制動力を得ることが可能になる。一方、下段制動装置４ａ、４ｃは、上段制動装置４ｂ、４ｄより下方にあることから、平滑なガイドレール２に下段制動子４２を押し付け、制動力を得ることは言うまでもない。なお、下段制動装置４ａ、４ｃは下段制動子４２を上段制動装置４ｂ、４ｄの上段制動子４１より遅らせてガイドレール２に摺接することになるが、この時間差は僅かであることから、制動距離に大きな影響を与えるものではなく、上段制動装置４ｂ、４ｄが平滑なガイドレール２に上段制動子４１を押し付けて制動力を得ることが可能となる効果のほうが大きい。
That is, by providing a time difference, the upper braking devices 4 b and 4 d can sufficiently press the upper braking member 41 against the smooth guide rail 2 to obtain a braking force. On the other hand, since the lower brake devices 4a and 4c are below the upper brake devices 4b and 4d, it goes without saying that the lower brake element 42 is pressed against the smooth guide rail 2 to obtain a braking force. Although the lower brake devices 4a and 4c are in sliding contact with the guide rail 2 with the lower brake members 42 delayed from the upper brake members 41 of the upper brake devices 4b and 4d, since the time difference is small, the braking distance The upper braking devices 4b and 4d have a greater effect of being able to press the upper braking member 41 against the smooth guide rail 2 to obtain a braking force.
本実施例によれば、非常制動時、平滑なガイドレール２に、上段制動装置４ｂ、４ｄの上段制動子４１、および下段制動装置４ａ、４ｃの下段制動子４２が押し付けられることで、右下段制動装置４ａ、右上段制動装置４ｂ、左下段制動装置４ｃ、および左上段制動装置４ｄのそれぞれが有する制動性能を十分に発揮させることができる。これにより、効率的な制動を安定して行い、非常止め装置としての信頼性の向上を図ることができる。
According to the present embodiment, during emergency braking, the upper lower braking element 41 of the upper braking devices 4b and 4d and the lower lower braking element 42 of the lower braking devices 4a and 4c are pressed against the smooth guide rail 2 The braking performance of each of the braking device 4a, the upper right braking device 4b, the lower left braking device 4c, and the upper left braking device 4d can be sufficiently exhibited. As a result, efficient braking can be stably performed, and the reliability of the emergency stop device can be improved.
特に、上段制動装置４ｂ、４ｄの上段制動子４１とガイドレール２との間隙寸法Ｌ１を、下段制動装置４ａ、４ｃの下段制動子４２とガイドレール２との間隙寸法Ｌ２より小さく設定するという方法で、各制動装置４の有する制動性能を十分に発揮させることができ、これによって、低コスト、および装置の小型化を図りつつ、効率的な制動を安定して行い、信頼性の高い非常止め装置とすることができきる。
In particular, the method of setting the gap dimension L1 between the upper brake element 41 of the upper brake devices 4b and 4d and the guide rail 2 smaller than the gap dimension L2 between the lower brake element 42 of the lower brake devices 4a and 4c and the guide rail 2 Therefore, the braking performance of each braking device 4 can be fully exhibited, and this achieves efficient braking stably while achieving low cost and downsizing of the device, and a highly reliable emergency stop. It is possible to make it a device.
また、本実施例においては、図３に示される様に、上段制動子４１の長さＭ１が下段制動子４２の長さＭ２よりも長くなっている。Ｌ１＜Ｌ２の寸法とした時に、先に制動が開始する上段の制動装置４ｂ、４ｄの制動力をより大きくするために、Ｍ１＞Ｍ２の寸法とすることができる。もちろんＭ１＝Ｍ２としても、上段の制動装置４ｂ、４ｄの制動力が十分であれば良い。
Further, in the present embodiment, as shown in FIG. 3, the length M1 of the upper stage brake 41 is longer than the length M2 of the lower stage brake 42. When the dimensions L1 <L2, the dimensions M1> M2 can be obtained in order to further increase the braking force of the upper- stage braking devices 4b and 4d at which the braking starts first. Of course, even if M1 = M2, the braking force of the upper braking devices 4b and 4d may be sufficient.
上下段の制動子４１、４２は同じ材質で構成することで良い。一方、上段制動装置４ｂ、４ｄより後に制動が開始する下段の制動装置の制動力をより大きくして制動時間を短くするために、下段の制動装置４ａ、４ｃの制動子４２の材質として上段の制動装置４ｂ、４ｄの制動子４１の摩擦係数より大きい材質を選ぶことも良いし、Ｍ１＜Ｍ２としても良い。
The upper and lower brakes 41 and 42 may be made of the same material. On the other hand, in order to increase the braking force of the lower-stage braking device to start braking later than the upper- stage braking devices 4b and 4d to shorten the braking time, the upper-stage braking device 42 of the lower- stage braking device 4a and 4c is made of a material It is also possible to select a material larger than the friction coefficient of the brake 41 of the braking devices 4b and 4d, or M1 <M2.
なお、前述した実施例では、制動装置４が上下方向に２つ並設されたものを例としたが、必要に応じて３つ、４つと増やすこともできる。
In the embodiment described above, two braking devices 4 are provided side by side in the vertical direction as an example, but it may be increased to three or four as needed.
１ 乗りかご（昇降体）
２ 乗りかご用ガイドレール
３ 主ロープ
４ 制動装置
４ａ 右下段制動装置
４ｂ 右上段制動装置
４ｃ 左下段制動装置
４ｄ 左上段制動装置
５ おもり
６ 巻き上げ機
７ 機械室
８ おもり用ガイドレール
９ 調速機
９a 調速機ロープ
９b 調速機ロープの綱車
９c 調速機ロープの張り車
１０ 昇降路
１１ 連結部材
１２ 引き上げロッド
４１ 上段制動子
４２ 下段生動子
４３ 上段引き上げ部
４４ 下段引き上げ部
４５ ガイドローラ
４６ 弾性体
４７ 上段ガイド部材
４８ 下段ガイド部材 1 ride basket (lifting body)
Guide rail for 2 cars
Three main ropes
4 braking system
4a Lower right brake
4b Right upper brake
4c Lower left brake
4d upper left brake
5 Weight
6 Winder
7 Machine room
8 Guide rails for weight
9 governor
9a governor rope
9b governor rope sheave
9c governor rope tensioner
10 hoistway
11 Connection member
12 Pull rod
41 Upper row brake
42 lower stage
43 Upper part pulling up part
44 Lower part pulling up part
45 Guide roller
46 Elastic body
47 Upper guide member
48 Lower guide member
２ 乗りかご用ガイドレール
３ 主ロープ
４ 制動装置
４ａ 右下段制動装置
４ｂ 右上段制動装置
４ｃ 左下段制動装置
４ｄ 左上段制動装置
５ おもり
６ 巻き上げ機
７ 機械室
８ おもり用ガイドレール
９ 調速機
９a 調速機ロープ
９b 調速機ロープの綱車
９c 調速機ロープの張り車
１０ 昇降路
１１ 連結部材
１２ 引き上げロッド
４１ 上段制動子
４２ 下段生動子
４３ 上段引き上げ部
４４ 下段引き上げ部
４５ ガイドローラ
４６ 弾性体
４７ 上段ガイド部材
４８ 下段ガイド部材 1 ride basket (lifting body)
Guide rail for 2 cars
Three main ropes
4 braking system
4a Lower right brake
4b Right upper brake
4c Lower left brake
4d upper left brake
5 Weight
6 Winder
7 Machine room
8 Guide rails for weight
9 governor
9a governor rope
9b governor rope sheave
9c governor rope tensioner
10 hoistway
11 Connection member
12 Pull rod
41 Upper row brake
42 lower stage
43 Upper part pulling up part
44 Lower part pulling up part
45 Guide roller
46 Elastic body
47 Upper guide member
48 Lower guide member
Claims (12)
- 昇降体の左右にあってそれぞれ上下方向に複数並設された制動装置を備え、当該制動装置はガイドレールに摺接可能な制動子と、前記昇降体の過速を検出した際に前記制動子を前記ガイドレールに押し付け、摩擦力により前記昇降体を制動する制御機構とを有し、待機状態における上段制動装置の制動子と前記ガイドレールとの間隙寸法を、下段制動装置の制動子と前記ガイドレールとの間隙寸法より小さく設定したことを特徴とするエレベーターの非常止め装置。 A plurality of braking devices are provided on the left and right of the elevating body and arranged in parallel in the vertical direction, and the braking device includes a braking element capable of sliding contact with the guide rail and the braking element when detecting an overspeed of the elevating body And a control mechanism that brakes the elevating body with a frictional force, and the size of the gap between the brake element of the upper brake device and the guide rail in the standby state is equal to that of the lower brake device and An emergency stop device for an elevator characterized by being set smaller than a gap dimension with a guide rail.
- 請求項１において、前記制動子はガイドレールに面して垂直な摩擦面を有するとともに、楔形の形状を有し、前記制御機構は前記制動子をガイド部材の斜面に沿って引き上げる引き上げ部を有し、昇降体の過速を検出した際に前記制御機構が前記制動子を引き上げて前記ガイドレールに押し付けることを特徴とするエレベーターの非常止め装置。 The brake according to claim 1, wherein the brake has a friction surface perpendicular to the guide rail and has a wedge-like shape, and the control mechanism has a pull-up portion for pulling up the brake along the slope of the guide member. An emergency stop device for an elevator, wherein the control mechanism pulls up the brake and presses it against the guide rail when an overspeed of the elevator is detected.
- 請求項２または３において、前記上段制動装置の制動子の制動面の長さが前記下段制動装置の制動子の制動面の長さよりも長いことを特徴とするエレベーターの非常止め装置。 The safety gear for elevators according to claim 2 or 3, wherein a length of a braking surface of a braking element of the upper braking device is longer than a length of a braking surface of the braking element of the lower braking device.
- 請求項２または３において、前記上段制動装置の制動子の制動面の長さと前記下段制動装置の制動子の制動面の長さは同じであることを特徴とするエレベーターの非常止め装置。 The safety gear for elevators according to claim 2 or 3, wherein a length of a braking surface of the braking element of the upper braking device and a length of a braking surface of the braking element of the lower braking device are the same.
- 請求項２または３において、前記上段制動装置の制動子の制動面の長さが前記下段制動装置の制動子の制動面の長さよりも短いことを特徴とするエレベーターの非常止め装置。 The safety gear for elevators according to claim 2 or 3, wherein a length of a braking surface of the braking element of the upper braking device is shorter than a length of a braking surface of the braking element of the lower braking device.
- 請求項２または３において、前記上段制動装置の制動子の制動面の摩擦係数よりも前記下段制動装置の制動子の制動面の摩擦係数が大きいことを特徴とするエレベーターの非常止め装置。 The elevator safety device according to claim 2 or 3, wherein the friction coefficient of the braking surface of the braking member of the lower braking device is larger than the friction coefficient of the braking surface of the braking member of the upper braking device.
- 昇降路に設けられたガイドレールに沿って昇降する昇降体と、
当該昇降体に設けられ、当該昇降体の過速が規定値を超えたときに前記昇降体を制動する制動装置とを有するエレベータ装置において、
前記制動装置は、前記ガイドレールの左右にあってそれぞれ上下方向に複数並設され、前記制動装置はガイドレールに摺接可能な制動子と、昇降体の過速を検出した際に前記制動子を前記ガイドレールに押し付け、摩擦力により前記昇降体を制動する制御機構とを有し、待機状態における上段制動装置の制動子と前記ガイドレールとの間隙寸法を、下段制動装置の制動子と前記ガイドレールとの間隙寸法より小さく設定したことを特徴とするエレベーター。 An elevating body which ascends and descends along a guide rail provided in a hoistway;
An elevator apparatus comprising: a braking device provided on the elevating body and braking the elevating body when an overspeed of the elevating body exceeds a specified value;
The plurality of braking devices are arranged in parallel in the vertical direction respectively on the left and right of the guide rail, and the braking device is a braking member capable of sliding contact with the guide rail, and the braking member when detecting an overspeed of an elevating body And a control mechanism that brakes the elevating body with a frictional force, and the size of the gap between the brake element of the upper brake device and the guide rail in the standby state is equal to that of the lower brake device and An elevator characterized by being set smaller than the gap dimension with the guide rail. - 請求項７において、前記制動子はガイドレールに面して垂直な摩擦面を有するとともに、楔形の形状を有し、前記制御機構は前記制動子をガイド部材の斜面に沿って引き上げる引き上げ部を有し、昇降体の過速を検出した際に前記制御機構が前記制動子を引き上げて前記ガイドレールに押し付けることを特徴とするエレベーター。 The brake according to claim 7, wherein the brake has a vertical friction surface facing the guide rail and has a wedge shape, and the control mechanism has a pulling-up portion for pulling the brake along the slope of the guide member. An elevator characterized in that the control mechanism pulls up the brake and presses it against the guide rail when an overspeed of the elevator is detected.
- 請求項７または８において、前記上段制動装置の制動子の制動面の長さが前記下段制動装置の制動子の制動面の長さよりも長いことを特徴とするエレベーター。 The elevator according to claim 7 or 8, wherein a length of a braking surface of the braking element of the upper stage braking device is longer than a length of a braking surface of the braking element of the lower stage braking device.
- 請求項７または８において、前記上段制動装置の制動子の制動面の長さと前記下段制動装置の制動子の制動面の長さは同じであることを特徴とするエレベーター装置。 9. The elevator apparatus according to claim 7, wherein the length of the braking surface of the braking element of the upper stage braking device and the length of the braking surface of the braking element of the lower stage braking device are the same.
- 請求項７または８において、前記上段制動装置の制動子の制動面の長さが前記下段制動装置の制動子の制動面の長さよりも短いことを特徴とするエレベーター。 The elevator according to claim 7 or 8, wherein the length of the braking surface of the braking element of the upper stage braking device is shorter than the length of the braking surface of the braking element of the lower stage braking device.
- 請求項７または８において、前記上段制動装置の制動子の制動面の摩擦係数よりも前記下段制動装置の制動子の制動面の摩擦係数が大きいことを特徴とするエレベーター。 9. The elevator according to claim 7, wherein the friction coefficient of the braking surface of the braking element of the lower braking device is larger than the friction coefficient of the braking surface of the braking member of the upper braking device.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280075382.3A CN104583111B (en) | 2012-08-28 | 2012-08-28 | The emergency braking apparatus of elevator and elevator |
| PCT/JP2012/071737 WO2014033846A1 (en) | 2012-08-28 | 2012-08-28 | Device for stopping elevator in emergency and elevator |
| JP2014532623A JP5809755B2 (en) | 2012-08-28 | 2012-08-28 | Elevator emergency stop device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/071737 WO2014033846A1 (en) | 2012-08-28 | 2012-08-28 | Device for stopping elevator in emergency and elevator |
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| WO2014033846A1 true WO2014033846A1 (en) | 2014-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/071737 WO2014033846A1 (en) | 2012-08-28 | 2012-08-28 | Device for stopping elevator in emergency and elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5809755B2 (en) |
| CN (1) | CN104583111B (en) |
| WO (1) | WO2014033846A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017509566A (en) * | 2014-04-03 | 2017-04-06 | ティッセンクルップ エレベーター アクチェンゲゼルシャフト | Elevator with braking device |
| WO2019110740A1 (en) * | 2017-12-07 | 2019-06-13 | Inventio Ag | Catching device for a traveling body, elevator system having a catching device and method for unblocking a catching device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265887B (en) * | 2020-10-23 | 2021-11-19 | 晋江华菱电梯有限公司 | Safety tongs link gear |
| CN112173913B (en) * | 2020-10-23 | 2022-03-15 | 晋江华菱电梯有限公司 | Safety elevator |
| CN115258875A (en) * | 2022-07-25 | 2022-11-01 | 苏州德奥电梯有限公司 | Elevator safety gear and using method |
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|---|---|---|---|---|
| JP2001354373A (en) * | 2000-06-14 | 2001-12-25 | Toshiba Elevator Co Ltd | Emergency stopping device of elevator |
| JP2010254466A (en) * | 2009-04-28 | 2010-11-11 | Hitachi Ltd | Emergency stop device of elevator |
| JP2011102165A (en) * | 2009-11-10 | 2011-05-26 | Hitachi Ltd | Emergency stop device for elevator |
| WO2012053073A1 (en) * | 2010-10-20 | 2012-04-26 | 三菱電機株式会社 | Emergency stop device for elevator |
| WO2012137248A1 (en) * | 2011-04-05 | 2012-10-11 | 三菱電機株式会社 | Elevator device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5427682B2 (en) * | 2010-04-16 | 2014-02-26 | 株式会社日立製作所 | Emergency stop device and elevator using the same |
-
2012
- 2012-08-28 JP JP2014532623A patent/JP5809755B2/en not_active Expired - Fee Related
- 2012-08-28 CN CN201280075382.3A patent/CN104583111B/en not_active Expired - Fee Related
- 2012-08-28 WO PCT/JP2012/071737 patent/WO2014033846A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001354373A (en) * | 2000-06-14 | 2001-12-25 | Toshiba Elevator Co Ltd | Emergency stopping device of elevator |
| JP2010254466A (en) * | 2009-04-28 | 2010-11-11 | Hitachi Ltd | Emergency stop device of elevator |
| JP2011102165A (en) * | 2009-11-10 | 2011-05-26 | Hitachi Ltd | Emergency stop device for elevator |
| WO2012053073A1 (en) * | 2010-10-20 | 2012-04-26 | 三菱電機株式会社 | Emergency stop device for elevator |
| WO2012137248A1 (en) * | 2011-04-05 | 2012-10-11 | 三菱電機株式会社 | Elevator device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017509566A (en) * | 2014-04-03 | 2017-04-06 | ティッセンクルップ エレベーター アクチェンゲゼルシャフト | Elevator with braking device |
| US10450165B2 (en) | 2014-04-03 | 2019-10-22 | Thyssenkrupp Elevator Ag | Elevator with a braking device |
| WO2019110740A1 (en) * | 2017-12-07 | 2019-06-13 | Inventio Ag | Catching device for a traveling body, elevator system having a catching device and method for unblocking a catching device |
| US11807496B2 (en) | 2017-12-07 | 2023-11-07 | Inventio Ag | Catching device for a traveling body, elevator system having a catching device and method for unblocking a catching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104583111B (en) | 2016-07-20 |
| CN104583111A (en) | 2015-04-29 |
| JPWO2014033846A1 (en) | 2016-08-08 |
| JP5809755B2 (en) | 2015-11-11 |
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