JP4683711B2

JP4683711B2 - Elevator emergency stop device

Info

Publication number: JP4683711B2
Application number: JP2000368804A
Authority: JP
Inventors: 部義宣阿; 妻康幸我
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 2000-12-04
Filing date: 2000-12-04
Publication date: 2011-05-18
Anticipated expiration: 2020-12-04
Also published as: JP2002167136A

Description

【０００１】
【発明の属する技術分野】
本発明は、エレベーターの安全を確保するための非常止め装置に関する。
【０００２】
【従来の技術】
一般に、ロープ式エレベーターにおいては、何らかの故障で乗りかごまたは釣り合い錘が急降下した場合等の異常時に、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が起こり、セフティリンクを介してそのガバナロープに連動し左右のガイドレールを挟み込んで、乗りかごまたは釣り合い錘を緊急停止させる、左右一組のエレベーター安全装置即ち非常止め装置が設けられている。
【０００３】
図６は、上記非常止め装置を設けた乗りかごの概略構成を示す図であり、エレベーターの乗りかご１は、乗客または荷物が乗るかご室２と、このかご室２を搭載支持するかご枠３とからなり、そのかご枠３は左右の立て枠３aと上梁３bと下梁３cにより構成されている。
【０００４】
上記下梁３cの左右端部下面には、昇降路内に立設されたガイドレール４に圧設される楔状部材を有する非常止め装置５、５が設けられている。また、その非常止め装置５、５の下部、及び上梁３bの左右端部上面にはそれぞれ上記ガイドレール４に係合する案内装置６が設けられており、その案内装置６とガイドレール４との係合によって乗りかご１がガイドレール４に沿って昇降するように構成されている。
【０００５】
ところで、上記非常止め装置５は、図７に示すように、乗りかご１の緊急停止時にガイドレール４に圧接する一対の楔体７、７を有している。すなわち、非常止め装置本体８には、ガイドレール４と対向する内面に上方に向かってガイドレール４に近づくような傾斜面８a、８aが形成されており、その傾斜面８a、８aの内面側に上記楔体７、７が配設され、上記ガイドレール４と楔体７、７の傾斜面との間には案内部材９が介装されている。しかして、図示しないセフティリンクの上動によって楔体７、７が引き上げられると、両楔体７，７がガイドレール４方向に移動され、上記楔体７、７の内面に取り付けられているシュー材１０がガイドレール４に圧接され、ガイドレール４とシュー材１０との摩擦力によって乗りかご１が緊急停止される。
【０００６】
図８及び図９は、上記楔体７とシュー材１０との取付け方法及び取り付けた状態を示す図であり、楔体７の前面にシュー材１０がシュー摺動面に対して垂直方向に延びる皿ねじ１１によって固定されている。
【０００７】
【発明が解決しようとする課題】
ところが、このような非常止め装置は、上述のようにシュー材１０が楔体７に対してその前面からシュー摺動面に対して垂直方向に延びる皿ねじ１１によって固定されているので、シュー材１０の交換作業時には安全装置を動作させた後に楔体７を非常止め装置本体８から取り外し、シュー材１０を交換しなければならず、作業効率が悪い等の問題がある。また、何らかの異常により、非常止め装置の設計動作速度以上となると、ガイドレール４との摩擦による発熱によりシュー材１０に反りが発生し、永久変形を起こすことがある。したがって、シュー材１０が楔体７とガイドレール４との間に挟まったりすることがあり、シュー材１０の摩耗に関わらず交換が必要になり、動作後の復旧に時間を費やさなければならない等の問題がある。
【０００８】
本発明は、このような点に鑑み、楔体を取り外さずにシュー材の取り付け、取り外しが容易にでき、また制動時の摩擦力によってシュー材の反りを防ぐことができる非常止め装置を得ることを目的とする。
【０００９】
【課題を解決するための手段】
請求項１記載の発明は、
エレベーターの乗りかごを緊急停止する時に、昇降路内に立設されたガイドレールに圧接される楔を有するエレベーターの非常止め装置において、
シュー材が取り付けられたシュー取付部材を楔体の前面に着脱可能に装着するとともに、そのシュー取付部材をその外周部から楔体に固定する固定手段を設け、
上記シュー取付部材はＬ形部材であり、その下端水平部が、上記楔体の下面に固定具によって下方から着脱可能に固着されていることを特徴とする。
【００１０】
請求項２記載の発明は、請求項１記載の発明において、
上記Ｌ形部材からなるシュー取付部材の上記楔体との対向面側に段部を形成するとともに、
上記楔体には上記段部に係合する切り欠き段部を形成し、
上記シュー取付部材の段部を上記切り欠き段部に係合したことを特徴とする。
【００１１】
請求項３記載の発明は、請求項１記載の発明において、
上記シュー取付部材の垂直面及び上記楔体の上記シュー取付部材と対向する面側のいずれか一方に突条を設けるとともに、他方にその突条に係合する凹条を設け、上記突条及び上記凹条を互いに嵌合させたことを特徴とする。
【００１２】
請求項４記載の発明は、請求項３記載の発明において、
上記突条の厚さがガイドレールとシュー材間のクリアランスより小さいことを特徴とする。
【００１３】
請求項５記載の発明は、請求項３または４記載の発明において、
上記突条の上下方向の高さが、上記シュー取付部材の下端部と下方の案内装置との間の寸法より小さいことを特徴とする。
【００１４】
また、請求項６記載の発明は、
エレベーターの乗りかごを緊急停止する時に、昇降路内に立設されたガイドレールに圧接される楔を有するエレベーターの非常止め装置において、
シュー材が取り付けられたシュー取付部材を楔体の前面に着脱可能に装着するとともに、そのシュー取付部材をその外周部から楔体に固定する固定手段を設け、
上記シュー取付部材の垂直面及び上記楔体の上記シュー取付部材と対向する面のいずれか一方に断面コ字状の凹部を形成するとともに、他方にその凹部に係合する突部を設け、
上記凹部に上記突部を嵌合するとともに、そのシュー取付部材を上記楔体に対して水平方向に延びる固定具により着脱可能に固着したことを特徴とする。
【００１６】
【発明の実施の形態】
以下、図１乃至図５を参照して本発明の実施の形態について説明する。
【００１７】
図１は本発明における第１の実施の形態の分解斜視図であって、図中、符号２０はシュー取付部材であり、側面視Ｌ字状のＬ形部材により構成されている。上記Ｌ字状のシュー取付部材２０の垂直辺部２０aの前面（ガイドレール４に対向する面）にシュー材２１が固着されている。そして、上記シュー材２１が固着されたシュー取付部材２０が楔体２２の前面に装着され（２点鎖線）、シュー取付部材２０の下端水平部２０bが楔体２２の下面に複数の固定ボルト２３により下方から固定されている。
【００１８】
しかして、上記固定ボルト２３を取り外すことにより、シュー材２１とともにシュー取付部材２０を下方或いは横方向に引き出すことができる。したがって、楔体２２を非常止め装置本体８から取外すことなくシュー材２１の取り付け或いは取り外しを行うことができ、シュー材２１の交換作業が容易になり、交換作業の短縮化を図ることができる。
【００１９】
図２は本発明の第２の実施の形態を示す図であり、図２の（ａ）に示すようにＬ形部材からなるシュー取付部材２４にはガイドレール４と対向する前面にシュー材２５が装着されており、楔体２６との対向面部に段部２４aが形成されている。一方、楔体２６には上記シュー取付部材２４の段部２４aと係合可能な切り欠き段部２６aが形成されている。しかして、シュー取付部材２４を楔体２６の前面に装着しシュー取付部材２４の段部２４aを楔体２６の切り欠き段部２６aに係合するとともに、シュー取付部材２４の下端水平部２４bが楔体２６の下面に図示ないボルトにより下方から固定されている。
【００２０】
しかして、シュー取付部材２４を取り外すときには、図２（ｂ）に示すようにボルトを下方に引き抜いた後、シュー取付部材２４を案内装置２７と接触しないように下方向にスライドさせ、そこで図２（ｃ）に示すように、ガイドレール４と案内装置２７と接触しないように斜めにしながら斜め下方にスライドさせることによってシュー取付部材２４を楔体２６から取り外すことができる。
【００２１】
このようにシュー取付部材２４と楔体２６に段部２４a及び切り欠き段部２６aを設けることにより、ガイドレール４や案内装置２７等の間の厳しいクリアランス条件においてもシュー取付部材２４の取り付け、取り外しを容易に行うことができ、作業性を向上させることができる。
【００２２】
図３は、本発明の第３の実施の形態を示す図であって、Ｌ形部材からなるシュー取付部材３０にはその前面にシュー材３１が装着されるとともに、楔体３２と対向する垂直面には上下方向に延びる複数の突条３３が形成されている。一方、楔体３２のシュー取付部材３０と対向する前面には上記突条３３が係合しうる凹条３４が設けられている。
【００２３】
しかして、この実施の形態においても前記第１の実施の形態と同様に、楔体３２の前面にシュー取付部材３０を装着し、下端水平部３０aを楔体３２の下面に下方からボルト３５によって固定することができる。また、下方からボルト３５を取り外した後シュー取付部材３０を下方にスライドさせることによって、容易にそのシュー取付部材３０を楔体３２から取り外すことができる。しかも、この場合には突条３３と凹条３４が嵌合しているので両者のズレを防止することができ、取付の確実性を向上させることができる。また、シュー取付部材３０に突条３３が設けられているので、シュー材３１の突条部まで含めた厚さが大きくなったことにより、制動時の摩擦力によるシューの反りを防止することができる。
【００２４】
また、上記第３の実施の形態においてはシュー取付部材３０に突条３３を設けたものを示したが、楔体３２に突条を設け、シュー取付部材３０に凹条を設けてもよい。
【００２５】
また図４は本発明の第４の実施の形態を示す図であり、第３の実施の形態と同様に突条及び凹条を設けたものにおいて、ガイドレール４とシュー取付部材３０に取り付けられているシュー材３１とのクリアランスＤより、突条３３aの突出方向寸法Ｂが小さくしてある。したがって、この場合にはシュー取付部材３０と案内装置２７とのクリアランスＣを考慮する必要なく、シュー取付部材３０を楔体３２に対して前後方向に移動させることによってシュー取付部材３０を楔体３２から容易に取り外すことができる。
【００２６】
さらに、シュー取付部材３０の上下方向の寸法Ａがシュー取付部材３０と案内装置２７との間の寸法Ｃより大きい場合でも、突条３３aの上下方向の寸法Ｅを上記寸法Ｃより小さくすることによってシュー取付部材３０を下方に引き出し或いは下方から挿入することができ、シュー取付部材３０の着脱を容易に行うことができる。
【００２７】
図５は、本発明の第５の実施の形態を示す図であり、前面にシュー材３６が装着されたシュー取付部材３７が断面コ字状に形成されて、楔体３８に対向する面に下方向に延びる凹部３７aが形成されている。また、楔体３８の前面には上記凹部３７aに係合する突部３８aが形成されており、楔体３８の下方からシュー取付部材３７を上方にスライドさせることによってシュー取付部材３７を楔体３８に取り付けられている。そして、シュー取付部材３７の両側面に設けられた穴３７bにボルト４０を横方向から挿入し、そのボルト４０を楔体３８に螺着することにより、シュー取付部材３７が楔体３８に固着されている。
【００２８】
したがって、この場合にもボルト４０を横方向に抜き取り、シュー取付部材３７を下方に引き下げることにより容易にシュー取付部材３７を楔体３８から取り外すことができる。また、取り付け時においてはシュー取付部材３７の凹部３７aを楔体３８の突部３８aに係合させながら上方にスライドさせ、ボルト４０を横方向から装着することによって両者を容易に固着することができる。また、この場合には楔体３８の下方からの作業を無くすることにより、作業時の危険性を削減することができる
【００２９】
【発明の効果】
以上説明したように、本発明は、楔体のガイドレールと対向する面に対して、シュー材が取り付けられたシュー取付部材を下方或いは横方向等の外周部から着脱可能に固着したので、シュー材の交換作業時に楔体を非常止め装置から取り外す必要が無く、容易にシュー材とともにシュー取付部材を取り外すことができ、交換作業の短縮化を図ることができる。
【図面の簡単な説明】
【図１】本発明の非常止め装置の第１の実施の形態を示す分解斜視図。
【図２】（ａ）、（ｂ）、（ｃ）はそれぞれ本発明の第２の実施の形態における分解作動説明図。
【図３】本発明の非常止め装置の第３の実施の形態の分解斜視図。
【図４】本発明の非常止め装置の第４の実施の形態を示す断面図。
【図５】本発明の非常止め装置の第５の実施の形態の分解斜視図。
【図６】非常止め装置を設けた乗りかごの概略構成を示す図。
【図７】従来の非常止め装置の構成を示す図。
【図８】従来の非常止め装置の楔体部のシュー材の取り付け方法を示す図。
【図９】従来の非常止め装置の楔体部斜視図。
【符号の説明】
２０、２４、３０、３７シュー取付部材
２１、２５、３１、３６シュー材
２２、２６、３２、３８楔体
２３、３５、４０ボルト
２４a 段部
２６a 切り欠き段部
３３突条
３４凹条
３７a 凹部
３８a 突部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an emergency stop device for ensuring safety of an elevator.
[0002]
[Prior art]
In general, in a rope type elevator, the governor rope gripping operation of the governor occurs before the speed does not exceed 1.4 times the rated speed in the event of an abnormality such as a sudden drop of the car or counterweight due to some failure, A pair of left and right elevator safety devices, that is, emergency stop devices, are provided in which the left and right guide rails are sandwiched by interlocking with the governor rope via the safety link to urgently stop the car or the counterweight.
[0003]
FIG. 6 is a diagram showing a schematic configuration of a car provided with the emergency stop device. An elevator car 1 includes a car room 2 on which passengers or luggage are loaded, and a car frame 3 on which the car room 2 is mounted and supported. The car frame 3 is composed of left and right standing frames 3a, an upper beam 3b, and a lower beam 3c.
[0004]
On the lower surfaces of the left and right end portions of the lower beam 3c, emergency stop devices 5 and 5 each having a wedge-shaped member press-fitted on a guide rail 4 standing in the hoistway are provided. Further, guide devices 6 that engage with the guide rails 4 are provided below the safety devices 5 and 5 and on the upper surfaces of the left and right end portions of the upper beam 3b, respectively. The car 1 is configured to move up and down along the guide rail 4 by the engagement.
[0005]
By the way, as shown in FIG. 7, the safety device 5 has a pair of wedge bodies 7 and 7 that come into pressure contact with the guide rail 4 when the car 1 is in an emergency stop. That is, the safety device main body 8 is formed with inclined surfaces 8a and 8a on the inner surface facing the guide rail 4 so as to approach the guide rail 4 upward, on the inner surface side of the inclined surfaces 8a and 8a. The wedge bodies 7 and 7 are disposed, and a guide member 9 is interposed between the guide rail 4 and the inclined surfaces of the wedge bodies 7 and 7. Thus, when the wedge bodies 7 and 7 are pulled up by the upward movement of the safety link (not shown), both the wedge bodies 7 and 7 are moved in the direction of the guide rail 4 and are attached to the inner surfaces of the wedge bodies 7 and 7. The material 10 is pressed against the guide rail 4 and the car 1 is urgently stopped by the frictional force between the guide rail 4 and the shoe material 10.
[0006]
FIGS. 8 and 9 are views showing a method of attaching the wedge body 7 and the shoe material 10 and a state of the attachment. The shoe material 10 extends on the front surface of the wedge body 7 in a direction perpendicular to the shoe sliding surface. It is fixed by a countersunk screw 11.
[0007]
[Problems to be solved by the invention]
However, in such an emergency stop device, as described above, the shoe material 10 is fixed to the wedge body 7 by the countersunk screw 11 extending from the front surface thereof in a direction perpendicular to the shoe sliding surface. At the time of replacement work 10, the wedge body 7 must be removed from the emergency stop main body 8 after operating the safety device, and the shoe material 10 must be replaced, resulting in poor work efficiency. Further, if the emergency stop device exceeds the design operation speed due to some abnormality, the shoe material 10 may be warped due to heat generated by friction with the guide rail 4 and may be permanently deformed. Therefore, the shoe material 10 may be pinched between the wedge body 7 and the guide rail 4, so that replacement is necessary regardless of wear of the shoe material 10, and time must be spent for recovery after operation. There is a problem.
[0008]
In view of these points, the present invention provides an emergency stop device capable of easily attaching and detaching a shoe material without removing the wedge body and preventing warping of the shoe material due to frictional force during braking. With the goal.
[0009]
[Means for Solving the Problems]
The invention described in claim 1
In an emergency stop device for an elevator having a wedge pressed against a guide rail standing in a hoistway when an elevator car is stopped in an emergency,
The shoe mounting member to which the shoe material is mounted is detachably mounted on the front surface of the wedge body, and a fixing means for fixing the shoe mounting member to the wedge body from the outer peripheral portion is provided,
The shoe attachment member is L-shaped member, the lower horizontal portion, characterized in that it is removably secured from below by a fixture on the bottom surface of the wedge.
[0010]
The invention according to claim 2 is the invention according to claim 1,
To form a stepped portion on the opposite side of the aforementioned wedge shoe mounting member made of the L-shaped member,
The wedge body is formed with a notch step portion that engages with the step portion,
The step portion of the shoe attachment member is engaged with the notch step portion.
[0011]
The invention according to claim 3 is the invention according to claim 1 ,
Provided with a vertical surface and ridges on one of the shoe attachment member and the opposite side of the wedge of the shoe attachment member is provided with a concave engaging its projection on the other, the ridges and The concave stripes are fitted to each other.
[0012]
The invention according to claim 4 is the invention according to claim 3 ,
The thickness of the protrusion is smaller than the clearance between the guide rail and the shoe material.
[0013]
The invention according to claim 5 is the invention according to claim 3 or 4 ,
Vertical height of the protrusion may be smaller than the dimension between the guide device of the lower end and below the shoe attachment member.
[0014]
Further, the invention described in claim 6
In an emergency stop device for an elevator having a wedge pressed against a guide rail standing in a hoistway when an elevator car is stopped in an emergency,
The shoe mounting member to which the shoe material is mounted is detachably mounted on the front surface of the wedge body, and a fixing means for fixing the shoe mounting member to the wedge body from the outer peripheral portion is provided,
To form a vertical surface and said shoe mounting member and opposing U-shaped cross-section of the recess to one side of the wedge of the shoe attachment member is provided with projections for engaging in the recess on the other,
With fitting the said protrusion in the recess, the shoe attachment member is characterized in that secured detachably by fasteners extending in the horizontal direction with respect to the wedge.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0017]
FIG. 1 is an exploded perspective view of a first embodiment of the present invention. In the figure, reference numeral 20 denotes a shoe mounting member, which is constituted by an L-shaped member having an L shape in side view. A shoe material 21 is fixed to the front surface (the surface facing the guide rail 4) of the vertical side portion 20 a of the L-shaped shoe mounting member 20. The shoe attachment member 20 to which the shoe material 21 is fixed is attached to the front surface of the wedge body 22 (two-dot chain line), and the lower end horizontal portion 20b of the shoe attachment member 20 is attached to the lower surface of the wedge body 22 with a plurality of fixing bolts 23. Is fixed from below.
[0018]
Thus, by removing the fixing bolt 23, the shoe attachment member 20 can be pulled out downward or laterally together with the shoe material 21. Therefore, the shoe material 21 can be attached or detached without removing the wedge body 22 from the emergency stop device main body 8, the replacement work of the shoe material 21 is facilitated, and the replacement work can be shortened.
[0019]
FIG. 2 is a view showing a second embodiment of the present invention. As shown in FIG. 2A, the shoe mounting member 24 made of an L-shaped member has a shoe member 25 on the front surface facing the guide rail 4. And a stepped portion 24a is formed on the surface facing the wedge body 26. On the other hand, the wedge body 26 is formed with a notch step portion 26 a that can be engaged with the step portion 24 a of the shoe attachment member 24. Thus, the shoe mounting member 24 is mounted on the front surface of the wedge body 26, the step portion 24a of the shoe mounting member 24 is engaged with the notch step portion 26a of the wedge body 26, and the lower horizontal portion 24b of the shoe mounting member 24 is The lower surface of the wedge body 26 is fixed from below by a bolt (not shown).
[0020]
Thus, when removing the shoe attachment member 24, the bolt is pulled downward as shown in FIG. 2B, and then the shoe attachment member 24 is slid downward so as not to contact the guide device 27, where FIG. As shown in (c), the shoe attachment member 24 can be removed from the wedge body 26 by sliding it obliquely downward while making it oblique so as not to contact the guide rail 4 and the guide device 27.
[0021]
Thus, by providing the shoe mounting member 24 and the wedge body 26 with the step portion 24a and the notch step portion 26a, the shoe mounting member 24 can be attached and detached even under severe clearance conditions between the guide rail 4 and the guide device 27 and the like. Can be easily performed, and workability can be improved.
[0022]
FIG. 3 is a view showing a third embodiment of the present invention. A shoe attachment member 30 made of an L-shaped member is attached with a shoe material 31 on the front surface thereof and is perpendicular to the wedge body 32. A plurality of protrusions 33 extending in the vertical direction are formed on the surface. On the other hand, on the front surface of the wedge body 32 facing the shoe attachment member 30, a recess 34 is provided on which the protrusion 33 can engage.
[0023]
In this embodiment as well, as in the first embodiment, the shoe mounting member 30 is mounted on the front surface of the wedge body 32, and the lower end horizontal portion 30a is attached to the lower surface of the wedge body 32 by bolts 35 from below. Can be fixed. Further, by removing the bolt 35 from below and sliding the shoe attachment member 30 downward, the shoe attachment member 30 can be easily removed from the wedge body 32. In addition, in this case, the protrusions 33 and the recesses 34 are fitted, so that the deviation between them can be prevented, and the mounting reliability can be improved. Further, since the protrusion 33 is provided on the shoe mounting member 30, the thickness including the protrusion of the shoe material 31 is increased, thereby preventing the warp of the shoe due to the frictional force during braking. it can.
[0024]
In the third embodiment, the shoe attachment member 30 is provided with the protrusion 33. However, the wedge body 32 may be provided with a protrusion, and the shoe attachment member 30 may be provided with a recess.
[0025]
FIG. 4 is a diagram showing a fourth embodiment of the present invention. In the same manner as in the third embodiment, a protrusion and a recess are provided, and the guide rail 4 and the shoe attachment member 30 are attached. The protrusion direction dimension B of the protrusion 33a is smaller than the clearance D with the shoe material 31 that is provided. Therefore, in this case, it is not necessary to consider the clearance C between the shoe attachment member 30 and the guide device 27, and the shoe attachment member 30 is moved in the front-rear direction with respect to the wedge body 32, whereby the shoe attachment member 30 is moved to the wedge body 32. Can be easily removed.
[0026]
Further, even when the vertical dimension A of the shoe mounting member 30 is larger than the dimension C between the shoe mounting member 30 and the guide device 27, the vertical dimension E of the protrusion 33a is made smaller than the dimension C. The shoe attachment member 30 can be pulled out or inserted from below, and the shoe attachment member 30 can be easily attached and detached.
[0027]
FIG. 5 is a view showing a fifth embodiment of the present invention. A shoe mounting member 37 having a shoe material 36 attached to the front surface is formed in a U-shaped cross section, and the surface facing the wedge body 38 is shown. A downwardly extending recess 37a is formed. Further, a protrusion 38a that engages with the concave portion 37a is formed on the front surface of the wedge body 38. By sliding the shoe attachment member 37 upward from below the wedge body 38, the shoe attachment member 37 is moved to the wedge body 38. Is attached. Then, the bolt 40 is inserted from the lateral direction into the holes 37b provided on both side surfaces of the shoe mounting member 37, and the bolt 40 is screwed to the wedge body 38, whereby the shoe mounting member 37 is fixed to the wedge body 38. ing.
[0028]
Therefore, also in this case, the shoe mounting member 37 can be easily detached from the wedge body 38 by extracting the bolt 40 in the lateral direction and pulling the shoe mounting member 37 downward. Further, at the time of mounting, the concave portion 37a of the shoe mounting member 37 is slid upward while being engaged with the protrusion 38a of the wedge body 38, and the bolts 40 are mounted from the lateral direction, whereby both can be easily fixed. . Further, in this case, by eliminating the work from below the wedge body 38, the danger during the work can be reduced.
【The invention's effect】
As described above, according to the present invention, the shoe attachment member to which the shoe material is attached is fixed to the surface of the wedge body facing the guide rail so as to be detachable from the outer peripheral portion such as the lower side or the lateral direction. It is not necessary to remove the wedge body from the emergency stop device when replacing the material, and the shoe attachment member can be easily removed together with the shoe material, so that the replacement operation can be shortened.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of an emergency stop device of the present invention.
FIGS. 2A, 2B, and 2C are exploded operation explanatory views in a second embodiment of the present invention, respectively.
FIG. 3 is an exploded perspective view of a third embodiment of the safety device according to the present invention.
FIG. 4 is a sectional view showing a fourth embodiment of the safety device according to the present invention.
FIG. 5 is an exploded perspective view of a fifth embodiment of the safety device according to the present invention.
FIG. 6 is a diagram showing a schematic configuration of a car provided with an emergency stop device.
FIG. 7 is a diagram showing a configuration of a conventional safety device.
FIG. 8 is a view showing a method for attaching a shoe material of a wedge body part of a conventional safety device.
FIG. 9 is a perspective view of a wedge body portion of a conventional safety device.
[Explanation of symbols]
20, 24, 30, 37 Shoe mounting member 21, 25, 31, 36 Shoe material 22, 26, 32, 38 Wedge body 23, 35, 40 Bolt 24a Step 26a Notch step 33 Projection 34 Concave 37a Concave 38a protrusion

Claims

In an emergency stop device for an elevator having a wedge pressed against a guide rail standing in a hoistway when an elevator car is stopped in an emergency,
The shoe mounting member to which the shoe material is mounted is detachably mounted on the front surface of the wedge body, and a fixing means for fixing the shoe mounting member to the wedge body from the outer peripheral portion is provided,
The shoe attachment member is L-shaped member, the lower horizontal portion, characterized in that it is removably secured from below by a fixture on the bottom surface of the wedge body, safety device of the elevator.

To form a stepped portion on the opposite side of the aforementioned wedge shoe mounting member made of the L-shaped member,
The wedge body is formed with a notch step portion that engages with the step portion,
Characterized in that the stepped portion of the shoe attachment member engaged with the cutout stepped part, elevator safety device according to claim 1, wherein.

Provided with a vertical surface and ridges on one of the shoe attachment member and the opposite side of the wedge of the shoe attachment member is provided with a concave engaging its projection on the other, the ridges and characterized in that fitted to each other the concave, elevator safety device according to claim 1, wherein.

The emergency stop device for an elevator according to claim 3, wherein the thickness of the protrusion is smaller than the clearance between the guide rail and the shoe material.

Vertical height of the protrusion may be smaller than the dimension between the guide device of the lower end and below the shoe mounting member, elevator safety device according to claim 3 or 4, wherein.

In an emergency stop device for an elevator having a wedge pressed against a guide rail standing in a hoistway when an elevator car is stopped in an emergency,
The shoe mounting member to which the shoe material is mounted is detachably mounted on the front surface of the wedge body, and a fixing means for fixing the shoe mounting member to the wedge body from the outer peripheral portion is provided,
To form a vertical surface and said shoe mounting member and opposing U-shaped cross-section of the recess to one side of the wedge of the shoe attachment member is provided with projections for engaging in the recess on the other,
With fitting the said protrusion in the recess, the safety device features and to Rue elevators that secured detachably by fasteners extending in the horizontal direction and the shoe attachment member with respect to the wedge.