JPS62269875A - Emergency stop device for elevator - Google Patents
Emergency stop device for elevatorInfo
- Publication number
- JPS62269875A JPS62269875A JP11203386A JP11203386A JPS62269875A JP S62269875 A JPS62269875 A JP S62269875A JP 11203386 A JP11203386 A JP 11203386A JP 11203386 A JP11203386 A JP 11203386A JP S62269875 A JPS62269875 A JP S62269875A
- Authority
- JP
- Japan
- Prior art keywords
- emergency stop
- stop device
- rail
- elevator
- brake
- 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
Links
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 239000010409 thin film Substances 0.000 claims description 11
- 239000003779 heat-resistant material Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は、エレベータの非常止め装置に関し、特に制
動機能を高めたエレベータの非常止め装置に関するもの
である。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an emergency stop device for an elevator, and particularly to an emergency stop device for an elevator with enhanced braking function.
第３図は例えば特開昭５９−４３７８１号公報に示され
た従来のエレベータの非常止め装＝を示す側面図であり
、同図において、１はエレベータの図示しない昇降路に
立設されたレール、２はこのレール１に案内されて昇降
するかごからなる昇降体、３は昇降体２の下部に設けら
れた非常止め装置、４は非常止め装置３の制動片であっ
て、レール１の両側にそれぞれ配置されている。そして
、この制動片３は通常状態ではレール１の面から離れて
保持されており、昇降体２の下降速度が所定値を越える
と、昇降体２に対して上昇することから、非常止め装置
３における固定部の斜面およびコロを介してレール１の
面に押圧されることになる。FIG. 3 is a side view showing a conventional emergency stop system for an elevator disclosed in, for example, Japanese Unexamined Patent Publication No. 59-43781. , 2 is an elevating body consisting of a car that is guided up and down by this rail 1, 3 is an emergency stop device provided at the bottom of the elevating body 2, and 4 is a brake piece of the emergency stop device 3, which is attached to both sides of the rail 1. are placed in each. In the normal state, this brake piece 3 is held apart from the surface of the rail 1, and when the descending speed of the elevating body 2 exceeds a predetermined value, it rises relative to the elevating body 2. Therefore, the emergency stop device 3 It is pressed against the surface of the rail 1 through the slope and rollers of the fixed part.
すなわち、制動片４が要時に動作してレール１に押圧さ
れると、制動片４とレール１との摩擦によって昇降体２
が制動されることになる。そして、この時における制動
力は１．制動片４とレール１の表面との摩擦係数と、制
動片４の押圧力との積によって決定される。従って小形
でかつ高能力の非常止め装置３を得るためには、摩擦係
数と押圧力を大きくする必要がある。That is, when the brake piece 4 operates at a necessary time and is pressed against the rail 1, the friction between the brake piece 4 and the rail 1 causes the lifting body 2 to
will be braked. The braking force at this time is 1. It is determined by the product of the friction coefficient between the brake piece 4 and the surface of the rail 1 and the pressing force of the brake piece 4. Therefore, in order to obtain a small and highly capable emergency stop device 3, it is necessary to increase the coefficient of friction and the pressing force.
しかしながら、上記構成によるエレベータの非常止め装
置において、押圧力を大きくするためには制動片４を高
圧力に耐える材料にすることが必要であり、摩擦係数を
大きくするには制動片４の制動面に多数の突子を設けて
レール１の表面との係合性を増すことが必要になる。し
かし、制動片４に突子を設けると、レール１の表面との
を動接触面積が減少する。このことからも高耐圧性の制
動片４が必要になる。ここで、制動片４の耐圧性は、レ
ール１への押圧時における制動面の溶融限界によって決
定され、溶融が発生すると、摩擦力が不完全になるとと
もに、制動面の損耗が激しくなる。従って、所要の制動
能力を得るためには、制動片４とレール１の表面との間
に著しい溶融が生じない範囲で使用することが必要にな
る。However, in the elevator emergency stop device having the above structure, in order to increase the pressing force, it is necessary to make the brake piece 4 made of a material that can withstand high pressure, and in order to increase the coefficient of friction, the braking surface of the brake piece 4 must be made of a material that can withstand high pressure. It is necessary to provide a large number of protrusions on the surface of the rail 1 to increase the engagement with the surface of the rail 1. However, when the brake piece 4 is provided with a protrusion, the area of dynamic contact with the surface of the rail 1 is reduced. For this reason as well, the brake piece 4 with high pressure resistance is required. Here, the pressure resistance of the brake piece 4 is determined by the limit of melting of the brake surface when pressed against the rail 1, and when melting occurs, the frictional force becomes incomplete and the wear and tear of the brake surface increases. Therefore, in order to obtain the required braking ability, it is necessary to use the brake piece within a range where significant melting does not occur between the brake piece 4 and the surface of the rail 1.
一方、制動片４のレール押圧時には、制動面が昇降体２
の下降によってレール１の表面を移動することから、レ
ール１は摩擦熱の蓄積が少なくなって溶融が生じにくい
。このために、制動片４の耐熱性を増すことによって、
制動面の溶融を防いで高い面圧での制動作用が得られる
ことになる。On the other hand, when the brake piece 4 presses the rail, the brake surface is
Since the rail 1 moves on the surface of the rail 1 by descending, the rail 1 accumulates less frictional heat and is less likely to melt. For this purpose, by increasing the heat resistance of the brake piece 4,
This prevents the braking surface from melting and provides braking action with high surface pressure.
ここで、高面圧での制動作用を得るためには、制動片４
をセラミック材で構成することも考えられるが、セラミ
ック材は欠損が生ずるとともに、放熱効果が極めて低い
ものとなってしまう問題点がある。Here, in order to obtain braking action with high surface pressure, the brake piece 4
It is also conceivable to construct the heat exchanger with a ceramic material, but the ceramic material has the problem of causing defects and having an extremely low heat dissipation effect.
この発明は上記のような問題点を解消するためになされ
たもので、制動子の表面における融点および硬度を高め
ることによって、制動機能を高めたエレベータの非常止
め装置を提供することを目的とする。This invention was made to solve the above-mentioned problems, and an object of the present invention is to provide an emergency stop device for an elevator with improved braking function by increasing the melting point and hardness of the surface of the brake element. .
この発明に係るエレベータの非常止め装置は、金属によ
って作られている制動子のレールとの接触面を耐熱材の
薄膜で被ったものである。The emergency stop device for an elevator according to the present invention is such that the contact surface of a brake element made of metal with a rail is covered with a thin film of a heat-resistant material.
この発明によるエレベータの非常止め装置は、金属によ
って作られている制動子のレールとの接触面が耐熱材の
薄膜によって被われていることから、溶融による摩擦力
の不安定化が防止されることになる。In the elevator emergency stop device according to the present invention, the contact surface of the metal brake with the rail is covered with a thin film of heat-resistant material, which prevents the frictional force from becoming unstable due to melting. become.
〔発明の実施例］
以下、この発明の一実施例を図について説明する。第１
図および第２図はこの発明によるエレベータの非常止め
装置の一実施例を示す制動子の正面図および第１図の■
−ｎ線断面図であり、第３図と同一部分は同一記号を用
いて示しである。同図において、５は制動子４のレール
と接する制動面に多数の突子６を形成するために設けら
れた溝である。７は制動子４の制動面を被うように設け
られた耐熱材の薄膜である。そして、この薄膜７として
は、融点２０００″Ｃ以上、硬度Ｈ，１０００以上が得
られる耐熱材が用いられており、これらの条件を満す材
料としては、例えばチタンカーバイト（ＴｉＣ）、窒化
チタン（ＴｉＮ）およびセラミ・７り等がある。そして
、これらの材料は、金属によって作られていて基体とな
る制動子４の制動面に０．００５ｍｍ〜０゜３１程度に
コーティングすることによって薄膜が作られている。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. 1st
1 and 2 are a front view of a brake showing an embodiment of the emergency stop device for an elevator according to the present invention, and a front view of a brake shown in FIG.
It is a sectional view taken along the -n line, and the same parts as in FIG. 3 are indicated using the same symbols. In the figure, reference numeral 5 denotes grooves provided to form a large number of protrusions 6 on the braking surface of the brake element 4 in contact with the rail. 7 is a thin film of heat-resistant material provided so as to cover the braking surface of the brake element 4. The thin film 7 is made of a heat-resistant material that has a melting point of 2000"C or more and a hardness H of 1000 or more. Materials that meet these conditions include, for example, titanium carbide (TiC) and titanium nitride. These materials are made of metal and are coated on the braking surface of the brake element 4, which serves as the base, to a thickness of about 0.005 mm to 0.31 mm to form a thin film. It is made.
この様に構成された制動子４を有するエレベータの非常
止め装置は、制動子４の表面、つまり制動面が耐熱材に
よる薄膜７によって被われていることから、その表面に
おける融点２０００℃以上、硬度ＨＶ１０００以上とな
る。この結果、従来の金属製による制動子は、融点が１
２００〜１５００℃、硬度ＨＶ６００程度であることか
ら、制動速度が１００ｍ／ｍｉｎ程度になると、制動子
の制動面が溶融して所擦力が不安定となるが、上記構成
による制動子４を用いた場合には何ら溶融が生じず、こ
れによって安定した制動が確実に得られることになる。The elevator emergency stop device having the brake element 4 configured in this manner has a surface of the brake element 4, that is, a braking surface, covered with a thin film 7 made of a heat-resistant material. HV1000 or more. As a result, conventional metal brakes have a melting point of 1
Since the temperature is 200 to 1500°C and the hardness is about HV600, when the braking speed becomes about 100 m/min, the braking surface of the brake will melt and the friction force will become unstable. If it is, no melting will occur and stable braking will be reliably obtained.
また、制動子４の制動面を被う耐熱材は極めて薄膜であ
ることから、経済的であるとともに、制動子表面の熱を
熱伝導性の良い基部としての金属性の制動子４に効率良
く伝えることから、制動面の温度上昇の抑制効果は高い
ままとなる。In addition, since the heat-resistant material covering the braking surface of the brake element 4 is an extremely thin film, it is economical and efficiently transfers heat from the brake element surface to the metallic brake element 4 as a base with good thermal conductivity. Therefore, the effect of suppressing the temperature rise on the braking surface remains high.
以上説明したように、この発明によるエレベータ非常止
め装置は、その制動子の制動面を耐熱材の薄膜で被った
ものであることから、制動時における制動面の溶融によ
る摩擦力の不安定化が解消されて、確実な非常止めが行
える効果がある。As explained above, in the elevator emergency stop device according to the present invention, since the braking surface of the brake element is covered with a thin film of heat-resistant material, the destabilization of the frictional force due to melting of the braking surface during braking is avoided. This has the effect of making it possible to perform a reliable emergency stop.
第１図はこの発明によるエレベータ非常止め装置の一実
施例を示す制動子の正面図、第２図は第１図の■−■線
断面図、第３図は従来のエレベータの非常止め装置を示
す側面図である。
４は制動子、５は溝、６は突子、７は薄膜。
なお、図中、同一符号は同一、又は相当部分を示す。Fig. 1 is a front view of a brake showing an embodiment of an elevator emergency stop device according to the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a diagram showing a conventional elevator emergency stop device. FIG. 4 is a brake element, 5 is a groove, 6 is a protrusion, and 7 is a thin film. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (2)
常時にこの昇降体を案内するレールを制動子が狭時して
昇降体の下降を停止させる非常止め装置において、前記
制動子の少なくとも前記レールとの接触面を耐熱材の薄
膜で被ったことを特徴とするエレベータの非常止め装置
。(1) In an emergency stop device that is provided on a lifting body including an elevator car, and in which a brake stops the descent of the lifting body by narrowing a rail that guides the lifting body in an emergency, at least the An elevator emergency stop device characterized by covering the contact surface with the rail with a thin film of heat-resistant material.
以上の耐熱材であることを特徴とする特許請求の範囲第
１項記載のエレベータ非常止め装置。(2) The thin film has a melting point of 2000℃ or higher and a hardness of Hv1000.
The elevator emergency stop device according to claim 1, characterized in that it is made of the above heat-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11203386A JPS62269875A (en) | 1986-05-16 | 1986-05-16 | Emergency stop device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11203386A JPS62269875A (en) | 1986-05-16 | 1986-05-16 | Emergency stop device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62269875A true JPS62269875A (en) | 1987-11-24 |
Family
ID=14576324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11203386A Pending JPS62269875A (en) | 1986-05-16 | 1986-05-16 | Emergency stop device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62269875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01139484A (en) * | 1987-11-27 | 1989-05-31 | Hitachi Elevator Eng & Service Co Ltd | Emergency stop device for elevator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326066B2 (en) * | 1973-01-19 | 1978-07-31 |
-
1986
- 1986-05-16 JP JP11203386A patent/JPS62269875A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326066B2 (en) * | 1973-01-19 | 1978-07-31 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01139484A (en) * | 1987-11-27 | 1989-05-31 | Hitachi Elevator Eng & Service Co Ltd | Emergency stop device for elevator |
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