JP6659005B1 - Elevator safety gear - Google Patents

Elevator safety gear Download PDF

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JP6659005B1
JP6659005B1 JP2019567752A JP2019567752A JP6659005B1 JP 6659005 B1 JP6659005 B1 JP 6659005B1 JP 2019567752 A JP2019567752 A JP 2019567752A JP 2019567752 A JP2019567752 A JP 2019567752A JP 6659005 B1 JP6659005 B1 JP 6659005B1
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friction material
elevator
inserted portion
projection
emergency stop
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JPWO2019180932A1 (en
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梶田　昭成
昭成 梶田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

エレベータのかご又はつり合いおもりに設けられ、エレベータが過速度になったときに、摩擦材を組付けた制動子によりかご又はつり合いおもりのガイドレールを挟み込んでかご又はつり合いおもりを停止させるエレベータの非常止め装置において、制動子に設けられ、摩擦材を挿入して結合される被挿入部と、摩擦材と被挿入部とにそれぞれ設けられ、摩擦材が被挿入部に挿入されたとき、摩擦材と被挿入部とを互いに嵌合して保持可能にする固定部と、を備え、固定部の一方には順目方向または逆目方向に傾斜する突起が形成され、他方には突起に引っ掛かり可能な係合部が形成されていることを特徴とする。An emergency stop for an elevator that is installed on the car or counterweight of an elevator and stops the car or counterweight by sandwiching the guide rail of the car or counterweight with a braker with friction material installed when the elevator is overspeeding. In the device, an inserted portion that is provided in the brake element and into which the friction material is inserted and coupled, and a friction material and the insertion portion that are respectively provided in the friction material and the insertion portion, and when the friction material is inserted into the insertion portion, A fixed part for fitting and holding the inserted part and holding the inserted part, wherein one of the fixed parts is formed with a projection inclined in the forward or reverse direction, and the other part can be caught by the projection. It is characterized in that an engaging portion is formed.

Description

この発明は、本発明はエレベータのかごの急降下などの非常時に摩擦材を取付けた楔でガイドレールを挟み込んで該かごを緊急停止させるエレベータの非常止め装置に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency stop device for an elevator in which an emergency stop such as a sudden descent of an elevator car sandwiches a guide rail with a wedge to which a friction material is attached and stops the car.

非常停止時にガイドレール側に押し付けられる楔のガイドレールとの対向面に取り付けた摩擦材の塑性変形や溶融が生じるのを防止するために、セラミック材製の摩擦材を挿入し保持するようにしたエレベータの非常止め装置（特許文献１）がある。 In order to prevent plastic deformation and melting of the friction material attached to the guide rail side of the wedge pressed against the guide rail at the time of emergency stop, ceramic friction material is inserted and held. There is an emergency stop device for an elevator (Patent Document 1).

特開平７−４１２７２JP-A-7-41272

しかしながら、このようなエレベータの非常止め装置では、摩擦材を制動子に固定する手段として接着剤を用いているため、接着表面の状態監視や温度管理等をおこなう必要があり、製造工程や保守作業に手間がかかるという課題があった。また、このような製造工程の手間を省いたり、保守作業の頻度を低下させた場合、経年により摩擦材が制動子から外れて、制動子から脱落するという課題があった。 However, in such an emergency stop device for an elevator, since an adhesive is used as a means for fixing the friction material to the brake, it is necessary to monitor the state of the bonding surface, control the temperature, and the like. There is a problem that it takes time. Further, when the labor of such a manufacturing process is saved or the frequency of the maintenance work is reduced, there is a problem that the friction material is detached from the brake element over time and falls off from the brake element.

この発明は、上記のような課題を解決するためになされたものであり、その目的は、非常停止時にガイドレール側に押し付けられる制動子のガイドレールとの対向面に摩擦材を挿入し、接着剤を用いることなく保持可能にしたエレベータの非常止め装置を提供することである。 The present invention has been made to solve the above-described problem, and an object of the present invention is to insert a friction material into a surface of a brake that is pressed against the guide rail at the time of an emergency stop and oppose the guide rail, and bond the friction material. It is an object of the present invention to provide an elevator safety device which can be held without using an agent.

この発明にかかるエレベータの非常止め装置は、エレベータのかご又はつり合いおもりに設けられ、エレベータが過速度になったときに、摩擦材を組付けた制動子によりかご又はつり合いおもりのガイドレールを挟み込んで前記かご又はつり合いおもりを停止させるエレベータの非常止め装置において、前記制動子に設けられ、前記摩擦材を挿入して結合される被挿入部と、前記摩擦材と前記被挿入部とにそれぞれ設けられ、前記摩擦材が前記被挿入部に挿入されたとき、前記摩擦材と前記被挿入部とを互いに嵌合して保持可能にする固定部と、を備え、前記固定部の一方には順目方向または逆目方向に傾斜する突起が形成され、他方には前記突起に引っ掛かり可能な係合部が形成されており、前記突起は前記被挿入部の上下方向の下側のみに設けられており、前記摩擦材が前記被挿入部に挿入されたとき、前記突起と対向する面に前記係合部が形成されていることを特徴とするものである。
The emergency stop device for an elevator according to the present invention is provided on a car or a counterweight of the elevator, and when the elevator is overspeed, the guide rail of the car or the counterweight is sandwiched by a brake attached with a friction material. In the emergency stop device for an elevator that stops the car or the counterweight, the emergency stop device is provided on the brake element, and is provided on the inserted portion to which the friction material is inserted and coupled, and on the friction material and the inserted portion, respectively. A fixing portion that, when the friction material is inserted into the inserted portion, allows the friction material and the inserted portion to be fitted and held with each other; projections inclined in or opposite grain direction is formed, the other is formed with the engaging portion can be caught in the projections, the projections only lower vertical direction of the inserted part Provided, when the friction member is inserted into the insertion member, and is characterized in that the engagement portion is formed on the projection surface facing.

この発明は、非常停止時にガイドレール側に押し付けられる制動子制動子のガイドレールとの対向面に摩擦材を挿入し、接着剤を用いることなく保持可能にしたエレベータの非常止め装置を実現できる。 According to the present invention, it is possible to realize an emergency stop device for an elevator in which a friction material is inserted into a surface of the brake element, which is pressed against the guide rail at the time of emergency stop, facing the guide rail, and can be held without using an adhesive.

この発明の実施の形態１による非常止め装置全体を示す正面図である。1 is a front view showing the entire safety device according to Embodiment 1 of the present invention. この発明の実施の形態１による図１の非常止め装置を示す拡大図（断面図）である。FIG. 2 is an enlarged view (sectional view) showing the safety device of FIG. 1 according to Embodiment 1 of the present invention. この発明の実施の形態１による図１の非常止め装置を示す拡大図（側面図）である。FIG. 2 is an enlarged view (side view) showing the safety device of FIG. 1 according to Embodiment 1 of the present invention. この発明の実施の形態１による図２の非常止め装置の要部（取付け前）を示す拡大図（断面図）である。FIG. 3 is an enlarged view (sectional view) showing a main part (before mounting) of the safety device of FIG. 2 according to Embodiment 1 of the present invention. この発明の実施の形態１による図２の非常止め装置の要部（取付け後）を示す拡大図（断面図）である。FIG. 3 is an enlarged view (cross-sectional view) showing a main part (after attachment) of the safety device of FIG. 2 according to Embodiment 1 of the present invention. この発明の実施の形態１による図３の非常止め装置を示す拡大図（側面図）である。FIG. 4 is an enlarged view (side view) showing the safety device of FIG. 3 according to Embodiment 1 of the present invention. この発明の実施の形態１による図１の非常止め装置の動作を示す拡大図（断面図）である。FIG. 2 is an enlarged view (sectional view) showing an operation of the safety device of FIG. 1 according to Embodiment 1 of the present invention. この発明の実施の形態２による非常止め装置の要部（取付け後）を示す拡大図（断面図）である。It is an enlarged view (cross-sectional view) which shows the principal part (after mounting) of the safety device by Embodiment 2 of this invention. この発明の実施の形態２による非常止め装置を示す拡大図（側面図）である。It is an enlarged view (side view) which shows the safety device by Embodiment 2 of this invention. この発明の実施の形態３による非常止め装置を示す拡大図（側面図）である。It is an enlarged view (side view) which shows the safety device by Embodiment 3 of this invention.

実施の形態１．
図１〜７は、この発明の実施の形態１によるエレベータの非常止め装置を説明するもので、図１は非常止め装置全体を示す正面図、図２は図１の非常止め装置を示す拡大図（断面図）、図３は図１の非常止め装置を示す拡大図（側面図）である。図４は図２の非常止め装置の要部（取付け前）を示す拡大図（断面図）、図５は図２の非常止め装置の要部（取付け後）を示す拡大図（断面図）、図６は図３の非常止め装置を示す拡大図（側面図）、図７は図１の非常止め装置の動作を示す拡大図（断面図）である。なお、エレベータのかご機器として戸閉装置、ドアモータ等は図示を省略している。Embodiment 1 FIG.
1 to 7 illustrate an emergency stop device of an elevator according to a first embodiment of the present invention. FIG. 1 is a front view showing the entire emergency stop device, and FIG. 2 is an enlarged view showing the emergency stop device of FIG. FIG. 3 is an enlarged view (side view) showing the safety device of FIG. 4 is an enlarged view (cross-sectional view) showing a main part (before mounting) of the safety device of FIG. 2, FIG. 5 is an enlarged view (cross-sectional view) showing a main part (after mounting) of the safety device of FIG. 2, 6 is an enlarged view (side view) showing the safety gear of FIG. 3, and FIG. 7 is an enlarged view (cross-sectional view) showing the operation of the safety gear of FIG. In addition, a door closing device, a door motor, and the like as elevator car devices are not illustrated.

図において、非常止め装置１は、断面台形状に形成された一対の制動子２を有し、制動子２は上端側が短辺となり、下端側が長辺となっている。一対の制動子２は、ガイドレール３を挟持可能にガイドレール３と僅かな隙間を持ってガイドレール３に略平行に配置されている。制動子２の背面は上方が狭くなるくさび状の平滑な傾斜面になっている。制動子２が所定位置に移動するように、移動を案内する案内部を有するガイド部材４に設けられている。ガイド部材４は、内側が制動子２の傾斜面と平行な傾斜面を成し、外側は垂直面となっており、垂直面を弾性体（図示しない）で挟み込んでいる。ガイド部材４の外周部は、ガイドレール３に対向する側が開放されたＵ字状に形成された弾性体に囲まれている。制動子２、およびガイド部材４，弾性体は、筐体内（図示しない）に収容され、制動子２の一端には、非常止め装置１を起動させる駆動手段（図示しない）が有する引き上げ棒（図示しない）が接続されている。 In the figure, an emergency stop device 1 has a pair of brakes 2 formed in a trapezoidal cross section. The brakes 2 have a short side at the upper end and a long side at the lower end. The pair of brakes 2 are disposed substantially parallel to the guide rail 3 with a slight gap therebetween so that the guide rail 3 can be held therebetween. The rear surface of the brake 2 has a smooth wedge-shaped inclined surface whose upper part is narrowed. The brake member 2 is provided on a guide member 4 having a guide portion for guiding the movement so as to move to a predetermined position. The inside of the guide member 4 forms an inclined surface parallel to the inclined surface of the braking element 2 and the outside is a vertical surface, and the vertical surface is sandwiched by an elastic body (not shown). The outer periphery of the guide member 4 is surrounded by a U-shaped elastic body whose side facing the guide rail 3 is open. The brake element 2, the guide member 4, and the elastic body are housed in a housing (not shown), and one end of the brake element 2 has a pull-up rod (not shown) provided by a driving unit (not shown) for activating the safety device 1. No) is connected.

ガイド部材４は、制動子２の傾斜面と平行な傾斜面を有しており、ガイド部材４の背面側は垂直面となっているので、ガイド部材４の垂直面を弾性体で挟み込むようになっている。したがって、非常止め装置１が動作したときは、制動子２がガイド部材４に対して引き上げられ、ガイド部材４を押し広げる。ガイド部材４が押し広げられた反力が制動子２に作用し、制動子２は互いの距離が狭まるように移動して、ガイドレール３を挟み込む。制動子２は、鋳鉄からなる四角柱状の支持体（図示しない）と、この支持体のガイドレール対向面側に結合された複数本(本実施例では、５本，２列)の摩擦材５を備える。摩擦材５は、窒化珪素、炭化珪素、アルミナおよびサイアロンなどの高性能セラミックスである。 The guide member 4 has an inclined surface parallel to the inclined surface of the braking element 2, and the rear side of the guide member 4 is a vertical surface, so that the vertical surface of the guide member 4 is sandwiched by an elastic body. Has become. Therefore, when the safety device 1 operates, the brake element 2 is pulled up with respect to the guide member 4 and pushes the guide member 4 apart. The reaction force from which the guide member 4 is expanded acts on the brake 2, and the brake 2 moves so as to reduce the distance between each other, and sandwiches the guide rail 3. The brake element 2 includes a square pillar-shaped support (not shown) made of cast iron, and a plurality of (five, two rows in this embodiment) friction members 5 connected to the guide rail facing surface side of the support. Is provided. The friction material 5 is a high-performance ceramic such as silicon nitride, silicon carbide, alumina, and sialon.

制動子２の垂直面には、摩擦材５が挿入されて結合される被挿入部６が設けられている。被挿入部６の内側には摩擦材５が挿入されたとき、摩擦材５と被挿入部６とを互いに嵌合して保持可能にする固定部７の一方として、被挿入部６の内側に上下方向の両側にそれぞれ複数の突起８が設けられている。この突起８は、被挿入部６の内側表面から１〜２ｍｍ突出した状態で、被挿入部６に摩擦材５を挿入する側から見て順目方向に傾斜して形成されている。被挿入部６の突起８を含む内径は、摩擦材５の外径より１〜２ｍｍ小さくなるように形成されている。 An inserted portion 6 into which the friction material 5 is inserted and connected is provided on a vertical surface of the brake element 2. When the friction material 5 is inserted into the inserted portion 6, the friction material 5 and the inserted portion 6 are engaged with each other and held as one of the fixing portions 7 inside the inserted portion 6. A plurality of protrusions 8 are provided on both sides in the vertical direction. The projections 8 are formed so as to protrude from the inner surface of the inserted portion 6 by 1 to 2 mm, and are inclined in the forward direction when viewed from the side where the friction material 5 is inserted into the inserted portion 6. The inner diameter of the inserted portion 6 including the protrusion 8 is formed to be smaller by 1 to 2 mm than the outer diameter of the friction material 5.

そのため、被挿入部６に摩擦材５が挿入されるとき、摩擦材５の表面は突起８に当接すると共に、突起８の先端部には高さ方向が圧縮される押圧力が作用する。すなわち、突起８は、高さ方向が０．５〜１ｍｍ圧縮されても容易に破断されることなく、高さ方向に弾性変形可能な弾性体で形成されている。また、被挿入部６に摩擦材５が挿入された状態において、突起８は摩擦材５の表面に当接すると共に自ら摩擦材５を継続的に押圧可能な弾性力を有している。 Therefore, when the friction material 5 is inserted into the inserted portion 6, the surface of the friction material 5 comes into contact with the projection 8, and a pressing force in the height direction is applied to the tip of the projection 8. That is, the projection 8 is formed of an elastic body that can be elastically deformed in the height direction without being easily broken even when the height direction is compressed by 0.5 to 1 mm. In a state where the friction material 5 is inserted into the inserted portion 6, the projection 8 has an elastic force capable of contacting the surface of the friction material 5 and continuously pressing the friction material 5 by itself.

さらに、非常止め装置１が動作した場合、摩擦材５には被挿入部６の底面に押し付けられる付勢力が作用するため、この付勢力に対して容易に破断することなく摩擦材５を安定的に保持可能な弾性体で形成されている。突起８は、例えば、銅や鋼などの弾性特性を有する金属材料で形成されている。突起８の形成方法としては、例えば、被挿入部６の内部表面にバリ状の突起を加工した後、加圧ローラーにて順目方向に傾斜させる方法、または、被挿入部６の外部から溶射することにより突起８を形成する方法がある。 Further, when the safety device 1 is operated, a biasing force is applied to the friction material 5 against the bottom surface of the inserted portion 6, so that the friction material 5 is stably held without being easily broken by the biasing force. It is formed of an elastic body that can be held at the same time. The protrusion 8 is formed of, for example, a metal material having elastic characteristics such as copper or steel. As a method for forming the projections 8, for example, a method in which a burr-like projection is formed on the inner surface of the inserted portion 6 and then inclined in a forward direction with a pressure roller, or sprayed from the outside of the inserted portion 6 Then, there is a method of forming the projections 8.

摩擦材５には、摩擦材５が被挿入部６に挿入されたとき、摩擦材５と被挿入部６とを互いに嵌合して保持可能にする固定部７の他方が設けられている。固定部７には、突起８と引っ掛かり可能な係合部９が設けられている。係合部９は、摩擦材５の上下方向の両側にそれぞれ設けられ、複数の凹部と凸部とから成る凹凸形状が形成されている。係合部９の凹凸形状は、摩擦材５の焼結工程により生成、あるいは表面を切削して加工しているものであり、凹部と凸部との高低差は０．１〜０．５ｍｍ程度となっている。すなわち、摩擦材５が被挿入部６に挿入されたとき、係合部９の凹部または凸部と突起８の先端が当接して引っ掛かると共に、弾性変形して当接する突起８の反発力によって摩擦材５が被挿入部６に安定的に保持される。 The friction material 5 is provided with the other of the fixing portions 7 that allow the friction material 5 and the inserted portion 6 to be fitted to each other and held when the friction material 5 is inserted into the inserted portion 6. The fixing portion 7 is provided with an engaging portion 9 which can be hooked on the projection 8. The engaging portions 9 are provided on both sides of the friction material 5 in the vertical direction, respectively, and have an uneven shape including a plurality of concave portions and convex portions. The concave-convex shape of the engaging portion 9 is generated by a sintering process of the friction material 5 or processed by cutting the surface, and the height difference between the concave portion and the convex portion is about 0.1 to 0.5 mm. It has become. That is, when the friction material 5 is inserted into the inserted portion 6, the concave or convex portion of the engaging portion 9 comes into contact with the tip of the projection 8 and is caught. The material 5 is stably held by the inserted portion 6.

次に、上記のように構成された実施の形態１の動作について説明する。始めに、制動子２に摩擦材５を固定する場合は、摩擦材５を被挿入部６に押し込みながら挿入すると、摩擦材５の係合部９と被挿入部６の突起８とが当接しながら、突起８は係合部９に押圧される。これにより突起８は、高さ方向が低くなるように変形する。このとき、被挿入部６に摩擦材５を挿入する側から見て突起８は順目方向に傾斜しているため、摩擦材５は突起８に引っ掛かることなく押し込むことができる。さらに、摩擦材５を被挿入部６の奥側に突き当てるまで押し込むと、摩擦材５はその位置に保持される。摩擦材５が被挿入部６の奥側に押し込まれたとき、突起８と係合部９とは互いに嵌合すると共に、突起８には変形した位置から元の高さに戻ろうとする反発力が作用する。この突起８の反発力によって係合部９が継続的に押圧されることで、摩擦材５は被挿入部６に安定的に保持される。 Next, the operation of the first embodiment configured as described above will be described. First, when the friction material 5 is fixed to the brake element 2, when the friction material 5 is inserted while being pushed into the inserted portion 6, the engaging portion 9 of the friction material 5 and the projection 8 of the inserted portion 6 come into contact with each other. Meanwhile, the projection 8 is pressed by the engagement portion 9. Thereby, the projection 8 is deformed so that the height direction becomes lower. At this time, since the projection 8 is inclined in the forward direction as viewed from the side where the friction material 5 is inserted into the inserted portion 6, the friction material 5 can be pushed in without being caught by the projection 8. Furthermore, when the friction material 5 is pushed until it comes to the back side of the inserted portion 6, the friction material 5 is held at that position. When the friction material 5 is pushed into the inserted part 6, the projection 8 and the engagement part 9 are fitted to each other, and the projection 8 has a repulsive force to return to the original height from the deformed position. Works. By continuously pressing the engaging portion 9 by the repulsive force of the projection 8, the friction material 5 is stably held by the inserted portion 6.

次に、非常止め装置１が動作した場合、制動子２の上部がくさび状のガイド部材４に挟み込まれることにより、摩擦材５がガイド部材４側に押し込まれる方向に付勢力が作用する。そのため、摩擦材５が被挿入部６から容易に外れることはない。 Next, when the emergency stop device 1 operates, the upper part of the brake element 2 is sandwiched between the wedge-shaped guide members 4, so that an urging force acts in a direction in which the friction material 5 is pushed toward the guide members 4. Therefore, the friction material 5 does not easily come off the inserted portion 6.

上記のように実施の形態１によれば、エレベータのかご又はつり合いおもりに設けられ、エレベータが過速度になったときに、摩擦材５を組付けた制動子２によりかご又はつり合いおもりのガイドレール３を挟み込んでかご又はつり合いおもりを停止させるエレベータの非常止め装置１において、制動子２に設けられ、摩擦材５を挿入して結合される被挿入部６と、摩擦材５と被挿入部６とにそれぞれ設けられ、摩擦材５が被挿入部６に挿入されたとき、摩擦材５と被挿入部６とを互いに嵌合して保持可能にする固定部７と、を備え、固定部７の一方には被挿入部６に摩擦材５を挿入する側から見て順目方向に傾斜する突起８が形成され、他方には突起８に引っ掛かり可能な係合部９が形成されていることにより、非常停止時にガイドレール３側に押し付けられる制動子２のガイドレール３との対向面に摩擦材５を挿入し、接着剤を用いることなく保持可能にしたエレベータの非常止め装置１を提供することができる。 According to the first embodiment as described above, the guide rail of the car or the counterweight is provided on the car or the counterweight of the elevator, and when the elevator is overspeeded, the brake 2 to which the friction material 5 is attached is used. In the elevator emergency stop device 1 that stops the car or the counterweight by sandwiching the friction member 3, the inserted portion 6 provided on the brake 2 and inserted and coupled with the friction material 5, the friction material 5 and the inserted portion 6 And a fixing portion 7 that is capable of fitting and holding the friction material 5 and the inserted portion 6 with each other when the friction material 5 is inserted into the inserted portion 6. One of them has a projection 8 which is inclined in the order direction as viewed from the side where the friction material 5 is inserted into the inserted portion 6, and the other has an engagement portion 9 which can be hooked on the projection 8. Guide rail at emergency stop It is possible to insert the friction member 5 on the surface facing the guide rail 3 brake shoe 2 is pressed against the side, to provide a safety device 1 of the elevator to be held without using an adhesive.

実施の形態２．
図８〜９は、この発明の実施の形態２によるエレベータの非常止め装置を説明するもので、図８は非常止め装置の要部（取付け後）を示す拡大図（断面図）、図９は非常止め装置を示す拡大図（側面図）である。この発明の実施の形態２によるエレベータの非常止め装置は、突起が上下方向の下側に形成されていることが異なり、それ以外の同様な部分に同じ記号を付記し説明を省略する。Embodiment 2 FIG.
8 and 9 illustrate an emergency stop device for an elevator according to a second embodiment of the present invention. FIG. 8 is an enlarged view (cross-sectional view) showing a main part (after mounting) of the emergency stop device, and FIG. It is an enlarged view (side view) which shows an emergency stop device. The elevator safety device according to Embodiment 2 of the present invention is different in that the projection is formed on the lower side in the up-down direction, and the same symbols are attached to other similar parts, and the description is omitted.

図において、突起１０は被挿入部１１の上下方向の下側に設けられている。係合部１２は摩擦材１３が被挿入部１１に挿入されたとき、突起１０と対向する面に形成されている。係合部１２は、摩擦材１３の上下方向の下側に設けられ、複数の凹部と凸部とから成る凹凸形状が形成されている。被挿入部１１に摩擦材１３が挿入されたとき、摩擦材１３の下側表面は突起１０に当接しており、突起１０の先端部には高さ方向が圧縮される押圧力が作用している。摩擦材１３の上側表面は被挿入部１１の内側に当接して配置されている。 In the figure, the projection 10 is provided below the inserted part 11 in the vertical direction. The engaging portion 12 is formed on a surface facing the projection 10 when the friction material 13 is inserted into the inserted portion 11. The engagement portion 12 is provided below the friction material 13 in the vertical direction, and has an uneven shape including a plurality of concave portions and convex portions. When the friction material 13 is inserted into the inserted portion 11, the lower surface of the friction material 13 is in contact with the protrusion 10, and a pressing force in the height direction is applied to the tip of the protrusion 10. I have. The upper surface of the friction material 13 is disposed in contact with the inside of the inserted portion 11.

次に、上記のように構成された実施の形態２の動作について説明する。非常止め装置１が動作して摩擦材１３がガイドレール３に当接したとき、摩擦材１３から見てガイドレール３は相対的に上方向に移動する。ガイドレール３が相対的に上方向に移動するに伴って、摩擦材１３にはガイドレール３に当接しながら上方向に引き上げられる付勢力が作用する。このとき、摩擦材１３は被挿入部１１に保持されながら引き上げられて上方向に変位する。 Next, the operation of the second embodiment configured as described above will be described. When the emergency stop device 1 operates to bring the friction material 13 into contact with the guide rail 3, the guide rail 3 moves relatively upward as viewed from the friction material 13. As the guide rail 3 moves relatively upward, an urging force acts on the friction material 13 to be lifted upward while abutting on the guide rail 3. At this time, the friction material 13 is pulled up while being held by the inserted portion 11, and is displaced upward.

このとき、実施の形態１では、被挿入部６の上側に配置された突起８は、上方向に変位した摩擦材５と、被挿入部６の上側内面との間に挟まれて座屈する可能性が有る。実施の形態２では、被挿入部１１の下側に配置された突起１０は、摩擦材１３が上方向に変位するため摩擦材１３の影響を受けない。すなわち、摩擦材１３が被挿入部１１の上側に変位した場合、下側に配置された突起１０の反発力によって係合部１２が継続的に上方向に押圧されることで、摩擦材１３は被挿入部１１に安定的に保持される。 At this time, in the first embodiment, the protrusion 8 arranged above the inserted portion 6 can be buckled by being sandwiched between the friction material 5 displaced upward and the upper inner surface of the inserted portion 6. There is a nature. In the second embodiment, the protrusion 10 disposed below the inserted portion 11 is not affected by the friction material 13 because the friction material 13 is displaced upward. That is, when the friction material 13 is displaced to the upper side of the inserted portion 11, the engaging portion 12 is continuously pressed upward by the repulsive force of the projection 10 arranged on the lower side, so that the friction material 13 It is stably held by the inserted portion 11.

上記のように実施の形態２によれば、突起１０は被挿入部１１の上下方向の少なくとも下側に設けられており、摩擦材１３が被挿入部１１に挿入されたとき、突起１０と対向する面に係合部１２が形成されていることにより、非常停止時にガイドレール３側に押し付けられる制動子２のガイドレール３との対向面に摩擦材１３を挿入し、接着剤を用いることなく保持可能にしたエレベータの非常止め装置１を提供することができる。 According to the second embodiment, as described above, the protrusion 10 is provided at least below the inserted portion 11 in the vertical direction, and faces the protrusion 10 when the friction material 13 is inserted into the inserted portion 11. Since the engaging portion 12 is formed on the surface to be engaged, the friction material 13 is inserted into the surface of the brake 2 that is pressed against the guide rail 3 at the time of an emergency stop and faces the guide rail 3 without using an adhesive. It is possible to provide an emergency stop device 1 for an elevator that can be held.

また、被挿入部１１の上側に突起を形成しないことにより、制動子２の製造コストを抑えることができる。また、突起１０及び係合部１２を下側に形成し、摩擦材１３の上部が被挿入部１１に当接して配置されていることにより、実施の形態１と同等の効果を奏することができる。 In addition, since no projection is formed on the upper side of the inserted portion 11, the manufacturing cost of the brake 2 can be reduced. Further, since the projection 10 and the engaging portion 12 are formed on the lower side, and the upper portion of the friction material 13 is disposed in contact with the inserted portion 11, an effect equivalent to that of the first embodiment can be obtained. .

実施の形態３．
図１０は、この発明の実施の形態３によるエレベータの非常止め装置を説明するもので、非常止め装置を示す拡大図（側面図）である。この発明の実施の形態３によるエレベータの非常止め装置は、突起が上下方向の両側及び水平方向の両側にそれぞれ形成されていることが異なり、それ以外の同様な部分に同じ記号を付記し説明を省略する。Embodiment 3 FIG.
FIG. 10 is an enlarged view (side view) illustrating an emergency stop device of an elevator according to a third embodiment of the present invention. The elevator safety device according to Embodiment 3 of the present invention is different in that projections are formed on both sides in the vertical direction and both sides in the horizontal direction, respectively. Omitted.

突起１４は被挿入部１５の上下方向の両側と、被挿入部１５の水平方向の両側に設けられている。摩擦材１６が被挿入部１５に挿入されたとき、突起１４と対向する面に係合部１７が形成されている。 The protrusions 14 are provided on both sides of the inserted portion 15 in the vertical direction and on both sides of the inserted portion 15 in the horizontal direction. When the friction material 16 is inserted into the inserted portion 15, an engaging portion 17 is formed on a surface facing the projection 14.

非常止め装置１が動作したとき、摩擦材１６は被挿入部１５に保持されながら引き上げられて上方向に変位する。このとき、実施の形態１では、被挿入部６の上側に配置された突起８は、上方向に変位した摩擦材５と、被挿入部６の上側内面との間に挟まれて座屈する可能性が有る。実施の形態３では、被挿入部１５の水平方向の両側に配置された突起１４は、摩擦材１６が上方向に変位するため摩擦材１６の影響を受けない。すなわち、摩擦材１６が被挿入部１５の上側に変位した場合、下側に配置された突起１４の反発力によって係合部１７が継続的に上方向に押圧される。さらに、水平方向の両側に配置された突起１４の反発力によって、係合部１７が継続的に被挿入部１５の水平方向の中心に向かって押圧されることで、摩擦材１６は被挿入部１５に安定的に保持される。 When the emergency stop device 1 operates, the friction material 16 is pulled up while being held by the inserted portion 15 and displaced upward. At this time, in the first embodiment, the protrusion 8 arranged above the inserted portion 6 can be buckled by being sandwiched between the friction material 5 displaced upward and the upper inner surface of the inserted portion 6. There is a nature. In the third embodiment, the protrusions 14 arranged on both sides of the inserted portion 15 in the horizontal direction are not affected by the friction material 16 because the friction material 16 is displaced upward. That is, when the friction material 16 is displaced above the inserted portion 15, the engaging portion 17 is continuously pressed upward by the repulsive force of the projection 14 arranged on the lower side. Furthermore, the engaging member 17 is continuously pressed toward the center of the inserted portion 15 in the horizontal direction by the repulsive force of the projections 14 arranged on both sides in the horizontal direction, so that the friction material 16 15 is stably held.

上記のように実施の形態３によれば、突起１４は被挿入部１５の上下方向の少なくとも下側に設けられており、かつ被挿入部１５の水平方向の少なくとも片側に設けられており、摩擦材１６が被挿入部１５に挿入されたとき、突起１４と対向する面に係合部１７が形成されていることにより、非常停止時にガイドレール３側に押し付けられる制動子２のガイドレール３との対向面に摩擦材１６を挿入し、接着剤を用いることなく保持可能にしたエレベータの非常止め装置１を提供することができる。 According to the third embodiment as described above, the protrusion 14 is provided at least below the inserted portion 15 in the vertical direction, and is provided on at least one side of the inserted portion 15 in the horizontal direction. When the material 16 is inserted into the inserted portion 15, the engaging portion 17 is formed on the surface facing the projection 14, so that the guide rail 3 of the brake element 2 that is pressed against the guide rail 3 during an emergency stop is provided. It is possible to provide the elevator safety device 1 in which the friction material 16 is inserted into the facing surface of the elevator and can be held without using an adhesive.

また、非常止め装置１が動作して、被挿入部１５の上側に設けた突起１４が座屈した場合、被挿入部１５の下側及び水平方向に配置した突起１４によって両側から摩擦材１６を保持できるので、より安定的に保持することができる。 In addition, when the safety device 1 operates and the protrusion 14 provided on the upper side of the inserted portion 15 buckles, the friction material 16 is removed from both sides by the protrusion 14 disposed below and horizontally in the inserted portion 15. Since it can be held, it can be held more stably.

なお、実施の形態１では、突起８は被挿入部６に形成され、係合部９の摩擦材５に凹凸形状を形成しているが、突起８を係合部９の摩擦材５に形成し、凹凸形状を被挿入部６に形成しても同様の作用・効果を奏することは言うまでもない。また、実施の形態２〜３についても同様に構成しても良い。 In the first embodiment, the protrusion 8 is formed on the inserted portion 6 and the unevenness is formed on the friction material 5 of the engagement portion 9. However, the protrusion 8 is formed on the friction material 5 of the engagement portion 9. However, it goes without saying that the same operation and effect can be obtained even if the concave-convex shape is formed in the inserted portion 6. Further, the second and third embodiments may be similarly configured.

また、実施の形態１では、突起８を弾性体で形成したが、突起８を弾性体ではない硬度の高い材料で形成し、摩擦材５の凹凸形状を弾性体で形成しても同様の作用・効果を奏することは言うまでもない。また、実施の形態２〜３についても同様に構成しても良い。 In the first embodiment, the projections 8 are formed of an elastic body. However, the same operation can be achieved even if the projections 8 are formed of a non-elastic material having high hardness and the unevenness of the friction material 5 is formed of an elastic body.・ It goes without saying that it works. Further, the second and third embodiments may be similarly configured.

１ 非常止め装置、２ 制動子、３ ガイドレール、４ ガイド部材、５，１３，１６ 摩擦材、６，１１，１５ 被挿入部、７ 固定部、８，１０，１４ 突起、９，１２，１７ 係合部 DESCRIPTION OF SYMBOLS 1 Emergency stop device, 2 brakes, 3 guide rails, 4 guide members, 5, 13, 16 Friction material, 6, 11, 15 Insertion part, 7 Fixing part, 8, 10, 14 Projection, 9, 12, 17 Engagement part

本発明は、エレベータのかごの急降下などの非常時に該かごを緊急停止させるエレベータの非常止め装置に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency stop device of an elevator for urgently stopping the car in an emergency such as a sudden drop of the elevator car.

Claims (5)

エレベータのかご又はつり合いおもりに設けられ、エレベータが過速度になったときに、摩擦材を組付けた制動子によりかご又はつり合いおもりのガイドレールを挟み込んで前記かご又はつり合いおもりを停止させるエレベータの非常止め装置において、
前記制動子に設けられ、前記摩擦材を挿入して結合される被挿入部と、
前記摩擦材と前記被挿入部とにそれぞれ設けられ、前記摩擦材が前記被挿入部に挿入されたとき、前記摩擦材と前記被挿入部とを互いに嵌合して保持可能にする固定部と、を備え、
前記固定部の一方には順目方向または逆目方向に傾斜する突起が形成され、
他方には前記突起に引っ掛かり可能な係合部が形成されており、
前記突起は前記被挿入部の上下方向の下側のみに設けられており、前記摩擦材が前記被挿入部に挿入されたとき、前記突起と対向する面に前記係合部が形成されていることを特徴とするエレベータの非常止め装置。 An elevator equipped with an elevator car or counterweight that stops the car or counterweight by sandwiching the guide rail of the car or counterweight with a brake attached with a friction material when the elevator is overspeeded. In the stop device,
An inserted part provided on the brake element and inserted and coupled with the friction material,
A fixing portion provided on each of the friction material and the inserted portion, and when the friction material is inserted into the inserted portion, the friction material and the inserted portion are fitted to each other and can be held; ,
A projection is formed on one of the fixing portions, which is inclined in a forward or reverse direction,
On the other side, an engaging portion that can be hooked on the protrusion is formed ,
The protrusion is provided only on the lower side in the vertical direction of the inserted portion, and the engaging portion is formed on a surface facing the protrusion when the friction material is inserted into the inserted portion . An emergency stop device for an elevator. 前記突起は前記被挿入部に形成され、前記係合部は前記摩擦材に形成された凹凸形状を備えたことを特徴とする請求項１に記載のエレベータの非常止め装置。   The emergency stop device for an elevator according to claim 1, wherein the projection is formed on the inserted portion, and the engagement portion has an uneven shape formed on the friction material. 前記突起は前記被挿入部の上下方向の少なくとも下側に設けられており、かつ前記被挿入部の水平方向の少なくとも片側に設けられており、前記摩擦材が前記被挿入部に挿入されたとき、前記突起と対向する面に前記係合部が形成されていることを特徴とする請求項１〜２のいずれかに記載のエレベータの非常止め装置。   The protrusion is provided on at least a lower side in the vertical direction of the inserted portion, and is provided on at least one side of the inserted portion in the horizontal direction, and when the friction material is inserted into the inserted portion. The emergency stop device for an elevator according to any one of claims 1 to 2, wherein the engagement portion is formed on a surface facing the projection. 前記摩擦材の上部が前記被挿入部に当接して配置されていることを特徴とする請求項１〜３のいずれかに記載のエレベータの非常止め装置。 The emergency stop device for an elevator according to any one of claims 1 to 3 , wherein an upper portion of the friction material is disposed in contact with the inserted portion. 前記突起は、弾性体であることを特徴とする請求項１〜４のいずれかに記載のエレベータの非常止め装置。 The safety device according to any one of claims 1 to 4 , wherein the projection is an elastic body.
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