JP2015067377A - Elevator emergency stopper - Google Patents
Elevator emergency stopper Download PDFInfo
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- JP2015067377A JP2015067377A JP2013200740A JP2013200740A JP2015067377A JP 2015067377 A JP2015067377 A JP 2015067377A JP 2013200740 A JP2013200740 A JP 2013200740A JP 2013200740 A JP2013200740 A JP 2013200740A JP 2015067377 A JP2015067377 A JP 2015067377A
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- elastic body
- guide rail
- emergency stop
- stop device
- 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
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- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
Description
本発明は、エレベータの非常止め装置の改良に関する。 The present invention relates to an improvement in an emergency stop device for an elevator.
従来、エレベータ装置は昇降体が一定速度以上で下降した際に、適切な減速度で昇降体を非常停止させるための安全装置として非常止め装置を備えている。非常止め装置は、昇降体が所定の速度以上に達した場合、昇降路の壁に設置されたレールを２個の台形型の摩擦材を配した制動子で挟圧保持して弾性体を押し広げ、その弾性体の弾性変形によって生じる力で制動力を発生させる構造である。この制動力はエレベータの仕様によって異なり、基本的には速度が速く質量が大きなものは大きな制動力が必要となり、逆に、速度が遅く質量が小さなものは小さな制動力となるのが一般的である。但し、この制動力は前述した通りレールを制動子で挟み込むことから、Ｆ＝μＰ（Ｐは弾性体の弾性変形によって生じる力）の関係より、その摩擦係数によって弾性体の大小が決定され、その都度適切な制動力となるよう調整されなければならない。このため、必要な制動力が発揮されるよう構成される個々部品の寸法精度、組み合わされる調整寸法はきちんと管理される必要がある。 2. Description of the Related Art Conventionally, an elevator apparatus includes an emergency stop device as a safety device for emergency stopping an elevator body at an appropriate deceleration when the elevator body descends at a certain speed or higher. When the lifting body reaches a predetermined speed or higher, the emergency stop device holds the rail installed on the wall of the hoistway with two brakes with trapezoidal friction materials and presses the elastic body. It is a structure in which a braking force is generated by a force generated by spreading and elastic deformation of the elastic body. This braking force varies depending on the elevator specifications.Basically, a large braking force is required for a vehicle having a high speed and a large mass, and conversely, a braking force having a low speed and a small mass is generally a small braking force. is there. However, since the braking force sandwiches the rail between the brakes as described above, the size of the elastic body is determined by the friction coefficient based on the relationship of F = μP (P is a force generated by elastic deformation of the elastic body). It must be adjusted so that the braking force is appropriate each time. For this reason, it is necessary to properly manage the dimensional accuracy of the individual parts configured to exert the necessary braking force and the adjustment dimensions to be combined.
また、ＥＮ／ＧＢなどの海外規格の認証試験においては、同一の制動子による連続２回、もしくは連続３回といった制動確保が必要とされる。この連続試験においては非常止め装置の構成部品等の調整は一切許されない。しかし、非常止め装置には昇降体が規定速度を超過したときに瞬時に大きな力が作用するため、これに伴い発生する問題への対応が必要となる。 Further, in the certification test of overseas standards such as EN / GB, it is necessary to ensure braking such as two times continuously or three times continuously with the same brake element. In this continuous test, adjustment of the components of the safety device is not allowed. However, since a large force is instantaneously applied to the emergency stop device when the lifting body exceeds the specified speed, it is necessary to cope with the problems that occur.
この点について詳しく説明する。図６は従来の一般的な非常止め装置の待機時の位置関係を示す断面図である。非常止め装置は、ガイドレール４を挟んで左右対称に構成されている。一対の制動子２は、ガイドレール４を挟圧可能となるようガイドレール４と僅かな隙間を持って略平行に配置されている。非常止め装置の待機時においては弾性体３を貫通する弾性体固定ボルト９はその弾性体３の貫通穴に干渉しない状態にある。このような状態にある非常止め装置が昇降体の移動速度が定格速度を超える設定速度に達すると、速度感知装置が動作し、制動子２が引き上げられ、制動子２は昇降体の両側の昇降路壁に設置されたガイドレール４を挟圧保持する。そして、制動子２はＵ字状の弾性体３を押し広げて弾性変形させることでガイドレール４と制動子２の間に摩擦力を発生させ昇降体を停止させる。 This point will be described in detail. FIG. 6 is a sectional view showing a positional relationship during standby of a conventional general safety device. The emergency stop device is configured symmetrically with respect to the guide rail 4. The pair of brake elements 2 are arranged substantially in parallel with the guide rail 4 with a slight gap so that the guide rail 4 can be clamped. When the emergency stop device is on standby, the elastic body fixing bolt 9 that penetrates the elastic body 3 is in a state that does not interfere with the through hole of the elastic body 3. When the emergency stop device in such a state reaches a set speed at which the moving speed of the lifting body exceeds the rated speed, the speed sensing device operates, the brake element 2 is pulled up, and the brake element 2 is moved up and down on both sides of the lifting body. The guide rail 4 installed on the road wall is clamped and held. Then, the brake element 2 spreads and elastically deforms the U-shaped elastic body 3 to generate a frictional force between the guide rail 4 and the brake element 2 and stop the lifting body.
図７は従来の一般的な非常止め装置動作後の位置ずれを起こした状態を示す側面図である。非常止め装置の動作により瞬時に制動子２が引き上げられることでＵ字状の弾性体３が押し広げられるが、制動子２に掛かる摩擦力は非常に大きいため、それと同時に弾性体３は垂直方向へ移動してしまう事象が発生してしまうことがある。このように移動が発生してしまうと、挟圧保持した摩擦力を弾性体３の適正な弾性力で受け止められず制動が不安定となってしまう。海外規格による連続２回、もしくは連続３回といった複数回の試験において、このような弾性体３が傾いた状態を調整することや元に戻すような手を加えることは許されず、従って安定した制動を確保することは困難となってしまう。 FIG. 7 is a side view showing a state in which the position shift occurs after the operation of the conventional general safety device. The U-shaped elastic body 3 is pushed and expanded by instantaneously pulling up the brake element 2 by the operation of the emergency stop device. However, since the frictional force applied to the brake element 2 is very large, the elastic body 3 simultaneously moves in the vertical direction. May occur. If the movement occurs in this way, the friction force held by the pinching force cannot be received by the appropriate elastic force of the elastic body 3 and the braking becomes unstable. It is not permitted to adjust the tilted state of the elastic body 3 or to return it to the original in a plurality of tests such as two consecutive times or three consecutive times according to overseas standards, and thus stable braking. It will be difficult to ensure.
このような問題に対応する技術として、特許文献１がある。図８は従来技術の非常止め装置を示す正面図、図９は従来技術の非常止め装置を示す側面図である。特許文献１に開示された技術は非常止め装置の筐体と弾性体との間に弾性体押さえボルト７を介在させることで垂直方向へ移動してしまう事象の防止を図ろうとするものである。 As a technology for dealing with such a problem, there is Patent Document 1. FIG. 8 is a front view showing a conventional safety device, and FIG. 9 is a side view showing the conventional safety device. The technique disclosed in Patent Document 1 intends to prevent an event of moving in the vertical direction by interposing an elastic body holding bolt 7 between a housing and an elastic body of an emergency stop device.
しかし、特許文献１に記載の技術では、弾性体の垂直方向への動きは抑制されるものの、ガイドレール４から遠ざかる方向となる弾性体３後方への移動に関しては対応することができない。図１０は従来技術の非常止め装置の制動時の状態を示す断面図である。同図に示すように、制動子２が引き上げられ弾性体３が押し広げられるのと同時に、弾性体３には制動子２を押圧する反力を受け、ガイドレール４から遠ざかる方向となる弾性体３後方へスライドしようとする力が働く。そして弾性体３が後方へスライドしてしまうと、適正な弾性力が発揮されなくなる。更にそのスライド量が大きくなる場合、弾性体固定ボルト９は弾性体３の貫通穴に干渉し、最悪は曲損に至る懸念がある。 However, although the technique described in Patent Document 1 suppresses the movement of the elastic body in the vertical direction, it cannot cope with the movement toward the rear of the elastic body 3 in the direction away from the guide rail 4. FIG. 10 is a cross-sectional view showing a state of braking of the conventional safety device. As shown in the figure, at the same time that the brake element 2 is pulled up and the elastic body 3 is expanded, the elastic body 3 receives a reaction force that presses the brake element 2 and moves away from the guide rail 4. 3 The force to slide backwards works. And if the elastic body 3 slides back, appropriate elastic force will not be exhibited. Further, when the sliding amount becomes large, the elastic body fixing bolt 9 interferes with the through hole of the elastic body 3, and there is a concern that the worst case is bending.
非常止め装置の必要とされる制動力は適切な調整寸法で組み立てられることにより確保される。しかしながら前述した特許文献１においても、複数回の試験においては都度の制動に伴い、弾性体は抑制されていない水平方向となる後方へスライドし、それら構成部品のセットした位置、座り具合に変化が生じてしまい、最悪は弾性体固定ボルトの曲損までにも至りレールを制動子で挟み込んで得る制動力が確実に弾性体へ伝達されない問題が生じる可能性があった。 The required braking force of the safety device is ensured by assembling with appropriate adjustment dimensions. However, even in the above-mentioned Patent Document 1, in a plurality of tests, the elastic body slides backward in the horizontal direction that is not restrained with each braking, and there is a change in the set position and the sitting condition of these components. As a result, there is a possibility that the braking force obtained by pinching the rail between the brakes is not reliably transmitted to the elastic body even to the bending of the elastic body fixing bolt.
本発明は、これら課題に鑑み為されたものであり、その目的は、簡易な構造で複数回の試験においても再現性のある最適な制動力が確保され安全性の向上を図ったエレベータ用非常止め装置を提供することにある。 The present invention has been made in view of these problems, and an object thereof is an emergency for an elevator that has a simple structure and ensures an optimum braking force that is reproducible even in a plurality of tests to improve safety. It is to provide a stop device.
前記目的を達成するために、本発明に係るエレベータの非常止め装置は、昇降路内を昇降する昇降体が規定速度を超過したときに、前記昇降体の昇降をガイドするガイドレールを挟圧して前記昇降体を非常停止する非常止め装置において、前記非常止め装置は、前記ガイドレールを挟圧保持する制動子と、前記制動子を前記ガイドレールに向かって押圧するＵ字状弾性体と、前記制動子及び前記Ｕ字状弾性体を内部に収納した筐体とを備え、前記制動子が前記ガイドレールを狭圧保持した際に、前記制動子が挟圧する前記ガイドレールから遠ざかる方向に前記Ｕ字状弾性体が変位することを抑制する背面ストッパを設けたことを特徴とする。 In order to achieve the above object, the elevator safety device according to the present invention clamps a guide rail that guides the lifting of the lifting body when the lifting body that moves up and down in the hoistway exceeds a specified speed. In the emergency stop device for emergency stop of the elevating body, the emergency stop device includes a brake that holds the guide rail with pressure, a U-shaped elastic body that presses the brake toward the guide rail, and the A brake housing and a housing housing the U-shaped elastic body therein, and when the brake brake holds the guide rail in a narrow pressure, the U A back stopper is provided to suppress the displacement of the letter-shaped elastic body.
本発明によれば、簡易な構造で複数回の試験においても再現性のある最適な制動力が確保され安全性の向上を図ったエレベータ用非常止め装置を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the emergency stop apparatus for elevators which ensured the optimal braking force with reproducibility also in the test of multiple times with the simple structure and aimed at the improvement of safety can be provided.
以下、本発明の一実施形態を例に挙げて本発明について詳しく説明する。 Hereinafter, the present invention will be described in detail by taking an embodiment of the present invention as an example.
図１は本発明による一実施形態に係るエレベータ装置を示す斜視図である。乗客を乗せる乗りかごである昇降体５は、ロープ６によって建物最上階にある図示しない駆動系に連結されている。昇降路の両側には、昇降体５の昇降をガイドするガイドレール４が設置されている。昇降体５の下端部には、非常止め装置１が、ガイドレール４を挟むように設置されている。非常止め装置１は、図示しないが反対側のガイドレール４にも備えてあり両者は図示されていない接続機構によって連結されている。なお本図ではドア開閉機、外枠の詳細等は図示していない。また、本図では非常止め装置１は、筐体等の詳細を簡略している。このように本実施形態における非常止め装置１は、昇降路内を昇降する昇降体５が規定速度を超過したときに、昇降体５の昇降をガイドするガイドレール４を挟圧して昇降体５を非常停止するものである。 FIG. 1 is a perspective view showing an elevator apparatus according to an embodiment of the present invention. The elevator 5 that is a passenger car on which passengers are placed is connected to a drive system (not shown) on the top floor of the building by a rope 6. On both sides of the hoistway, guide rails 4 for guiding the raising and lowering of the elevating body 5 are installed. An emergency stop device 1 is installed at the lower end of the lifting body 5 so as to sandwich the guide rail 4. Although not shown, the emergency stop device 1 is also provided on the guide rail 4 on the opposite side, and both are connected by a connection mechanism not shown. In this figure, details of the door opener and outer frame are not shown. Moreover, in this figure, the emergency stop device 1 has simplified details of the housing and the like. As described above, the safety device 1 according to the present embodiment clamps the lifting body 5 by clamping the guide rail 4 that guides the lifting and lowering of the lifting body 5 when the lifting body 5 that moves up and down in the hoistway exceeds a specified speed. Emergency stop.
図２は本発明による一実施形態に係る非常止め装置を示す正面図、図３は本発明による一実施形態に係る非常止め装置における弾性体の固定構造を示す側面図である。同図に示すように、一対の制動子２は、図示していないガイドレール４を挟圧可能となるようガイドレール４と僅かな隙間を持って左右対称に略平行に配置されている。制動子２の背面は制動子２が所定位置に移動するように、移動を案内する制動子案内板１１がガイド部材１５に設けられていて、上方が狭くなるくさび状の平滑な傾斜面になっている。ガイド部材１５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３で挟み込んでいる。また、制動子２とガイド部材１５の間にはローラー１０があり、制動子２がガイドレール４を挟圧した時の制動力が弾性体３から付与されることを可能としながら滑らかに上方に移動することが可能となっている。 FIG. 2 is a front view showing an emergency stop device according to an embodiment of the present invention, and FIG. 3 is a side view showing an elastic body fixing structure in the emergency stop device according to an embodiment of the present invention. As shown in the figure, the pair of brake elements 2 are arranged symmetrically and substantially parallel to the guide rail 4 with a slight gap so that the guide rail 4 (not shown) can be clamped. A brake member guide plate 11 for guiding the movement is provided on the guide member 15 so that the brake member 2 moves to a predetermined position on the rear surface of the brake member 2 and has a wedge-like smooth inclined surface narrowing upward. ing. The guide member 15 has an inclined surface parallel to the inclined surface of the brake element 2 on the inner side and a vertical surface on the outer side, and the vertical surface is sandwiched between the elastic bodies 3. Further, there is a roller 10 between the brake element 2 and the guide member 15, and the braking force when the brake element 2 clamps the guide rail 4 can be applied from the elastic body 3 while being smoothly upward. It is possible to move.
ガイド部材１５の外周部は、ガイドレール４に対向する側が開放されたＵ字状に形成された弾性体３に囲まれている。制動子２および制動子案内板１１、ガイド部材１５、弾性体３は、非常止め装置１の筐体１６内に収容され、制動子２の一端には、非常止め装置１を駆動させる図示しない駆動手段が有する引き上げ棒に接続されている。このように本実施形態における非常制動装置１は、ガイドレール４を挟圧保持する制動子２と、制動子２をガイドレール４に向かって押圧するＵ字状の弾性体３と、制動子２及び弾性体３を内部に収納した筐体１６とを備えている。 The outer peripheral portion of the guide member 15 is surrounded by an elastic body 3 formed in a U shape with the side facing the guide rail 4 open. The brake element 2, the brake element guide plate 11, the guide member 15, and the elastic body 3 are accommodated in the housing 16 of the emergency stop device 1, and a drive (not shown) that drives the emergency stop device 1 at one end of the brake element 2. It is connected to the lifting rod that the means has. As described above, the emergency braking device 1 according to the present embodiment includes the brake element 2 that holds and holds the guide rail 4, the U-shaped elastic body 3 that presses the brake element 2 toward the guide rail 4, and the brake element 2. And a housing 16 in which the elastic body 3 is housed.
本実施形態における非常止め装置１は図２及び図３に示すように弾性体３の下部を支えるＬ形台座１２及び弾性体抑止Ｌ形台座１４を設けている。Ｌ形台座１２は、制動子２が制動子案内板１１及びガイド部材１５の間に引き上げられて弾性体３を押し広げ、それにより弾性体３から押圧力を受けてガイドレールを挟圧した際、弾性体３が押し広げられることを許容しながら、左右方向への動きを規制するものであり、弾性体３の下部の左右両端に設けられている。 As shown in FIGS. 2 and 3, the safety device 1 according to the present embodiment is provided with an L-shaped base 12 and an elastic body restraining L-shaped base 14 that support the lower part of the elastic body 3. The L-shaped pedestal 12 is formed when the brake element 2 is pulled up between the brake element guide plate 11 and the guide member 15 to spread the elastic body 3, thereby receiving a pressing force from the elastic body 3 and pinching the guide rail. The elastic body 3 is allowed to be spread out while restricting the movement in the left-right direction, and is provided at both left and right ends of the lower portion of the elastic body 3.
また、Ｌ形台座１４は、制動子２が制動子案内板１１及びガイド部材１５の間に引き上げられて弾性体３を押し広げ、それにより弾性体３から押圧力を受けてガイドレールを挟圧した際、弾性体３がガイドレール４から遠ざかる方向である弾性体３の背面方向へスライドしようとする力を受け、その動きを規制するものであり、弾性体３の下部中央にＬ形の垂直立設された背面当接部の平面が弾性体３の背面と接触して設けられている。即ち本実施形態においては、Ｌ形台座１４が背面ストッパとして機能するものである。 Further, the L-shaped pedestal 14 is configured such that the brake element 2 is pulled up between the brake element guide plate 11 and the guide member 15 to expand the elastic body 3, thereby receiving a pressing force from the elastic body 3 and pinching the guide rail. The elastic body 3 receives a force to slide toward the back surface of the elastic body 3 which is a direction away from the guide rail 4, and restricts the movement of the elastic body 3. The plane of the back contact portion that is erected is provided in contact with the back surface of the elastic body 3. That is, in this embodiment, the L-shaped base 14 functions as a back stopper.
ここで非常止め装置の動作について説明する。昇降体５の移動速度が定格速度を超える設定速度に達すると、最上階に設置された図示しない速度感知装置が動作し、制動子２が引き上げられ、制動子２は昇降体５の両側の昇降路壁に設置されたガイドレール４を挟圧保持する。そして、制動子２はＵ字状の弾性体３を押し広げて弾性変形させることでガイドレール４と制動子２の間に摩擦力を発生させ昇降体を停止させる。 Here, the operation of the safety device will be described. When the moving speed of the lifting / lowering body 5 reaches a set speed exceeding the rated speed, a speed sensing device (not shown) installed on the top floor operates, the brake 2 is lifted, and the brake 2 is lifted and lowered on both sides of the lifting / lowering body 5. The guide rail 4 installed on the road wall is clamped and held. Then, the brake element 2 spreads and elastically deforms the U-shaped elastic body 3 to generate a frictional force between the guide rail 4 and the brake element 2 and stop the lifting body.
図４は本発明による一実施形態に係る非常止め装置の制動時の状態を示す図３におけるＡ−Ａ断面図である。同図に示すように、制動子２を押圧する力の反力により弾性体３がガイドレール４から遠ざかる方向である弾性体３の背面方向へスライドしようとする。しかしその力はＬ形台座１４が受け、弾性体３の背面方向へスライドしようとする動きを抑制する。この構造により今まで水平方向の変位量による懸念された弾性体固定ボルト９の曲損も解消され、海外規格で規定される複数回の試験においても安定した機構構成により信頼性のある非常止め装置の提供が可能となる。また、弾性体抑止Ｌ形台座１４の構造のように簡易構造で確実な効果が見込まれる。 FIG. 4 is a cross-sectional view taken along line AA in FIG. 3 showing a state of the emergency stop device according to an embodiment of the present invention during braking. As shown in the figure, the elastic body 3 tends to slide toward the back of the elastic body 3, which is the direction away from the guide rail 4, by the reaction force of the force that presses the brake element 2. However, the force is received by the L-shaped pedestal 14 and suppresses the movement of the elastic body 3 trying to slide in the back direction. This structure eliminates the bending damage of the elastic body fixing bolt 9 which has been feared due to the amount of displacement in the horizontal direction so far, and a reliable emergency stop device with a stable mechanism configuration even in a plurality of tests prescribed by overseas standards. Can be provided. Moreover, a reliable effect is expected with a simple structure like the structure of the elastic body restraining L-shaped base 14.
また本実施形態においては、図２及び図３に示すように弾性体３の上部に、制動子２がガイドレール４を狭圧保持した際に、ガイドレール４の長手方向、即ち昇降体５の昇降する方向に弾性体３が変位することを抑制する垂直ストッパとして、弾性体押さえボルト７を共に設けている。このように背面ストッパと垂直ストッパを共に設ける構成により、制動子２が引上げられ弾性体３が押し広げられる際に、弾性体３が垂直方向、水平方向への移動を抑制させ、弾性体の位置ズレをなくすことができる。 In the present embodiment, as shown in FIGS. 2 and 3, the longitudinal direction of the guide rail 4, that is, the elevating body 5 of the elevating body 5 when the brake element 2 holds the guide rail 4 narrowly on the elastic body 3. An elastic body presser bolt 7 is provided as a vertical stopper that suppresses displacement of the elastic body 3 in the up and down direction. Thus, by providing both the back stopper and the vertical stopper, when the brake element 2 is pulled up and the elastic body 3 is pushed and spread, the elastic body 3 is restrained from moving in the vertical and horizontal directions, and the position of the elastic body is reduced. Misalignment can be eliminated.
エレベータの仕様にもよるが、非常止め装置１の制動をつかさどる弾性体３の一例としては小さなもので１０，０００Ｎ以下のものから大きなもので５００，０００Ｎを超えるものまで弾性力の範囲は広く、非常止め装置１の基本的な機構メカニズムは勾配面を有す制動子２がガイドレール４を挟み込み制動力を発揮するものであり、その弾性体３は昇降体５が規定速度を超過したときに瞬時に作用される。本実施形態によれば、瞬時にこのエネルギーを受け止める試験を複数回行っても常に安定した制動力が得られる構造を提供することができる。即ち、非常止め装置に求められる適切な、そして必要とされる制動力が確保され、安定した制動を実現することにより複数回での試験においても信頼性の向上を図るエレベータとすることができる。 Although it depends on the specifications of the elevator, an example of the elastic body 3 that controls the braking of the emergency stop device 1 is a small one with a wide range of elastic force from 10,000 N or less to over 500,000 N, The basic mechanism mechanism of the emergency stop device 1 is that the brake element 2 having a sloped surface sandwiches the guide rail 4 to exert a braking force, and the elastic body 3 is when the elevating body 5 exceeds the specified speed. Acts instantly. According to the present embodiment, it is possible to provide a structure that can always obtain a stable braking force even when a test for instantaneously receiving this energy is performed a plurality of times. That is, an appropriate and necessary braking force required for the emergency stop device is ensured, and by realizing stable braking, the elevator can be improved in reliability even in a plurality of tests.
また、このように垂直ストッパ及び背面ストッパを設けることで、非常止め装置１の組立後の輸送時など突発的に受ける揺れや衝撃、現地据付け時のクレーン移動など、非常止め装置１の組立寸法や装置内の個々部品のセット位置のズレ、移動を防止することができ、機能を損なうことなく安全性の向上を図ることができる。 Further, by providing the vertical stopper and the back stopper in this way, the assembly dimensions of the emergency stop device 1 such as sudden vibrations and shocks received during transportation after the assembly of the emergency stop device 1, crane movement at the time of field installation, etc. Deviation and movement of the set positions of the individual components in the apparatus can be prevented, and safety can be improved without impairing the function.
続いて、本発明の他の一実施形態を説明する。なお本実施例は、非常止め装置の基本的構成を同じくするものであり、実施例１と共通する構成要素については同一の符号を付して説明を省略する。以下、実施例１と異なる点について説明する。 Next, another embodiment of the present invention will be described. In this embodiment, the basic configuration of the safety device is the same, and the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted. Hereinafter, differences from the first embodiment will be described.
図５は、本発明による別の一実施形態に係る非常止め装置における弾性体の固定構造を示す側面図である。同図に示すように本実施形態における非常止め装置の背面ストッパは、筐体１６と弾性体３の間の距離に等しい長さで、筐体１６に固定されたボルト１３で構成されている。このボルト１３は弾性体３の背面と対向する筐体１６の一面に設けられた穴に通され、筐体１６と弾性体３の間の距離に等しい長さとなるように、筐体１６の一面に対して表裏からナットで締め付けて固定している。そして、ボルト１３の頭部を弾性体３の背面に当接させている。 FIG. 5 is a side view showing an elastic body fixing structure in an emergency stop device according to another embodiment of the present invention. As shown in the figure, the back stopper of the emergency stop device according to the present embodiment is constituted by a bolt 13 fixed to the casing 16 with a length equal to the distance between the casing 16 and the elastic body 3. The bolt 13 is passed through a hole provided in one surface of the housing 16 that faces the back surface of the elastic body 3, and has a length equal to the distance between the housing 16 and the elastic body 3. In contrast, it is fastened with nuts from the front and back. The head of the bolt 13 is in contact with the back surface of the elastic body 3.
このような構成であっても前述の実施例１と同様の効果を得ることができる。また、ボルト１３を弾性体３の背面と対向する筐体１６の一面に設ければよいので、大きな設計変更がいらず、且つ、簡易な構成で弾性体の背面側への動きを抑制することができる。つまり、従来の非常止め装置に容易に適用することが可能である。 Even with such a configuration, the same effects as those of the first embodiment can be obtained. In addition, since the bolt 13 may be provided on one surface of the housing 16 facing the back surface of the elastic body 3, no major design change is required, and the movement of the elastic body to the back surface side is suppressed with a simple configuration. Can do. That is, it can be easily applied to a conventional emergency stop device.
以上、説明した実施例１及び２によれば、簡易構造で必要な制動力が安定して発揮され、信頼性の高い非常止め装置が提供できる。そして海外規格に対応した複数回の試験において、および日本国内における年次の定期検査時等でも安定した制動力が発揮される。 As described above, according to the first and second embodiments described above, it is possible to provide a highly reliable emergency stop device that stably exhibits a necessary braking force with a simple structure. In addition, stable braking force is exhibited in multiple tests corresponding to overseas standards, and even during annual regular inspections in Japan.
なお、本実施形態では昇降体として乗りかごを例に挙げて説明したが、昇降路を昇降する釣合いおもりに本発明の非常止め装置を設けることも可能である。 In the present embodiment, the elevator car has been described as an example of the lifting body. However, the emergency stop device of the present invention can be provided on a counterweight that moves up and down the hoistway.
１ 非常止め装置
２ 制動子
３ 弾性体
４ ガイドレール
５ 昇降体
６ ロープ
７ 弾性体押さえボルト
８ 弾性体台座
９ 弾性体固定ボルト
１０ ローラー
１１ 制動子案内板
１２ 弾性体位置決めＬ形台座
１３ 弾性体抑止治具
１４ 弾性体抑止Ｌ形台座
１５ ガイド部材
１６ 筐体
DESCRIPTION OF SYMBOLS 1 Emergency stop device 2 Braking element 3 Elastic body 4 Guide rail 5 Lifting body 6 Rope 7 Elastic body holding bolt 8 Elastic body base 9 Elastic body fixing bolt 10 Roller 11 Braking element guide plate 12 Elastic body positioning L-shaped base 13 Elastic body restraint Jig 14 Elastic body restraining L-shaped base 15 Guide member 16 Housing
Claims (4)
前記非常止め装置は、前記ガイドレールを挟圧保持する制動子と、前記制動子を前記ガイドレールに向かって押圧するＵ字状弾性体と、前記制動子及び前記Ｕ字状弾性体を内部に収納した筐体とを備え、
前記制動子が前記ガイドレールを狭圧保持した際に、前記制動子が挟圧する前記ガイドレールから遠ざかる方向に前記Ｕ字状弾性体が変位することを抑制する背面ストッパを設けたことを特徴とするエレベータの非常止め装置。 In an emergency stop device for emergency stop of the lifting body by sandwiching a guide rail that guides the lifting of the lifting body when the lifting body moving up and down in the hoistway exceeds a specified speed,
The emergency stop device includes a brake element for holding and holding the guide rail, a U-shaped elastic body that presses the brake element toward the guide rail, and the brake element and the U-shaped elastic body inside. With a housed housing,
A back stopper is provided that suppresses displacement of the U-shaped elastic body in a direction away from the guide rail pinched by the brake when the brake holds the guide rail at a narrow pressure. Elevator emergency stop device.
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| JP2013200740A JP6129703B2 (en) | 2013-09-27 | 2013-09-27 | Elevator emergency stop device |
| CN201410406302.9A CN104692213B (en) | 2013-09-27 | 2014-08-18 | Emergency braking device of elevator |
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| JP2013200740A JP6129703B2 (en) | 2013-09-27 | 2013-09-27 | Elevator emergency stop device |
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| JP6129703B2 JP6129703B2 (en) | 2017-05-17 |
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Cited By (2)
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| JP2016216201A (en) * | 2015-05-21 | 2016-12-22 | 三菱電機株式会社 | Emergency stop device for elevator |
| US10421640B2 (en) | 2017-02-17 | 2019-09-24 | Otis Elevator Company | Elevator braking device including buckling beams |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10927915B2 (en) | 2017-12-15 | 2021-02-23 | Otis Elevator Company | Spring useful for elevator safety device |
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| JPS6475383A (en) * | 1987-09-18 | 1989-03-22 | Hitachi Ltd | Emergency stop device for elevator |
| JPH11222367A (en) * | 1998-02-06 | 1999-08-17 | Toshiba Elevator Co Ltd | Emergency stop device for elevator |
| JP2008290832A (en) * | 2007-05-23 | 2008-12-04 | Hitachi Ltd | Emergency stop device of elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2526306Y (en) * | 2002-03-28 | 2002-12-18 | 河北东方机械厂 | Safety equipment for elevator |
| CN2571723Y (en) * | 2002-09-05 | 2003-09-10 | 河北东方机械厂 | Progressive safety pliers |
| JP2009113914A (en) * | 2007-11-06 | 2009-05-28 | Mitsubishi Electric Corp | Emergency stop device |
| CN201325807Y (en) * | 2008-11-27 | 2009-10-14 | 杭州沪宁电梯配件有限公司 | Safe clamp of elevator car |
| JP5501995B2 (en) * | 2011-03-02 | 2014-05-28 | 株式会社日立製作所 | Elevator equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6475383A (en) * | 1987-09-18 | 1989-03-22 | Hitachi Ltd | Emergency stop device for elevator |
| JPH11222367A (en) * | 1998-02-06 | 1999-08-17 | Toshiba Elevator Co Ltd | Emergency stop device for elevator |
| JP2008290832A (en) * | 2007-05-23 | 2008-12-04 | Hitachi Ltd | Emergency stop device of elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016216201A (en) * | 2015-05-21 | 2016-12-22 | 三菱電機株式会社 | Emergency stop device for elevator |
| US10421640B2 (en) | 2017-02-17 | 2019-09-24 | Otis Elevator Company | Elevator braking device including buckling beams |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104692213A (en) | 2015-06-10 |
| CN104692213B (en) | 2017-04-12 |
| JP6129703B2 (en) | 2017-05-17 |
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