CN103201206A - Emergency stop device for elevator - Google Patents
Emergency stop device for elevator Download PDFInfo
- Publication number
- CN103201206A CN103201206A CN2010800697307A CN201080069730A CN103201206A CN 103201206 A CN103201206 A CN 103201206A CN 2010800697307 A CN2010800697307 A CN 2010800697307A CN 201080069730 A CN201080069730 A CN 201080069730A CN 103201206 A CN103201206 A CN 103201206A
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- CN
- China
- Prior art keywords
- guide rail
- wedge
- car
- upside
- downside
- 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
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Classifications
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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
An emergency stop device for an elevator is provided to a vertically movable body guided by a guide rail. The emergency stop device has a first emergency stop mechanism and a second emergency stop mechanism which is disposed below the first emergency stop mechanism. The first emergency stop mechanism has first braking bodies capable of being brought into contact with and separated from the guide rail and applies a braking force to the vertically movable body by bringing the first braking bodies into contact with the guide rail. The second emergency stop mechanism has second braking bodies capable of being brought into contact with and separated from the guide rail and applies a braking force to the vertically movable body by bringing the second braking bodies into contact with the guide rail. The position on the guide rail at which the first braking bodies are brought into contact with the guide rail and the position on the guide rail at which the second braking bodies are brought into contact with the guide rail are displaced from each other in the horizontal direction.
Description
Technical field
The present invention relates to the emergency braking device be used to the elevator that lifting body (for example car or counterweight etc.) is promptly stopped.
Background technology
In the past, known such technology, in order to improve the reliability of action, the emergency braking device that two little quality are used links up and down and is equipped on car, constitutes the emergency braking device of elevator thus.The emergency braking device that each little quality is used has respectively: be configured in guide rail both sides about become a pair of supporting member; And be configured in a pair of wedge portion material between each supporting member and the guide rail.In the emergency braking device that each little quality is used, each wedge portion material gos deep between supporting member and the guide rail, provides braking force (with reference to patent documentation 1) to car thus.
In addition, in the past, in order to improve the reliability of action, also proposed to have to be provided with the emergency braking device (patent documentation 2 and patent documentation 3) of the such elevator of a plurality of friction linings of being made by pottery at wedge portion material with the opposed opposed faces of guide rail.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2001-354373 communique
Patent documentation 2: Japanese kokai publication hei 7-41272 communique
Patent documentation 3: Japanese kokai publication sho 59-7682 communique
Summary of the invention
The problem that invention will solve
; in the emergency braking device of the elevator shown in the patent documentation 1; when car descends; if wedge portion material up and down contacts with guide rail; then the wedge portion material of upside slides at the face that the wedge portion material of downside slided; therefore, the surface of the guide rail after the wedge portion material of downside slides becomes high temperature, thereby causes the wedge portion material of upside with respect to the friction coefficient reduction of guide rail.Thus, the wedge portion material of upside is difficult to go deep between supporting member and the guide rail, thereby is difficult to produce enough braking forces.
In addition, in the emergency braking device of the elevator shown in patent documentation 2 and 3, be one with respect to the quantity of the emergency braking device of a guide rail, therefore can't tackle the maximization of car.
The present invention finishes in order to solve above-mentioned problem, and its purpose is to obtain a kind of emergency braking device of elevator of the reliability that can improve action.
Be used for solving the means of problem
The emergency braking device of elevator of the present invention is located at by the lifting body of rail guidance, be used for providing braking force to lifting body, the emergency braking device of described elevator possesses: the 1st urgent stop mechanism portion, it has and can contact and the 1st brake body that separates with guide rail, and the 1st urgent stop mechanism portion provides braking force by making the 1st brake body contact with guide rail to lifting body; With the 2nd urgent stop mechanism portion, it has and can contact and the 2nd brake body that separates with guide rail, the 2nd urgent stop mechanism portion is configured in the below of the 1st urgent stop mechanism portion, and providing braking force by making the 2nd brake body contact with guide rail to lifting body, the contact position on guide rail staggers the 1st brake body in the horizontal direction each other at the contact position on the guide rail and the 2nd brake body.
The effect of invention
In the emergency braking device of elevator of the present invention, contact position on guide rail staggers in the horizontal direction each other at the contact position on the guide rail and the 2nd brake body owing to the 1st brake body, therefore, can make the 2nd brake body avoid the sliding surface that slides with respect to guide rail of the 1st brake body and slide with respect to guide rail.Thus, can avoid the 1st brake body to slide at the sliding surface that the slip because of the 2nd brake body becomes high temperature, thereby can suppress the 1st brake body with respect to the friction coefficient reduction of guide rail.Therefore, be not only the braking force of the 2nd urgent stop mechanism portion, the braking force of the 1st urgent stop mechanism portion also can produce more reliably.Thus, can realize the raising of reliability of the action of emergency braking device.
Description of drawings
Fig. 1 is the constructional drawing of car that the elevator of embodiments of the present invention 1 is shown.
Fig. 2 illustrates upside wedge when contacting with the car guide rail of Fig. 1 respectively and the constructional drawing of downside wedge.
Fig. 3 illustrates upside wedge when observing from the car guide rail of Fig. 2 and the constructional drawing of downside wedge.
Fig. 4 is the front view that the slip vestige that produces at car guide rail because the upside wedge of Fig. 3 contacts with car guide rail with the downside wedge is shown.
The specific embodiment
Below, with reference to accompanying drawing preferred implementation of the present invention is described.
Embodiment 1
Fig. 1 is the constructional drawing of car that the elevator of embodiments of the present invention 1 is shown.In the drawings, in hoistway, be respectively arranged with a pair of car guide rail 1 and a pair of counterweight guide rail (not shown) along the vertical direction.Between each car guide rail 1, dispose car (lifting body) 2, between each counterweight guide rail, dispose not shown counterweight (lifting body).Car 2 and counterweight are by the not shown suspention body overhang of the driving rope sheave that is wound in towing machine (actuating device).As the suspention body, for example adopt rope or band etc.Car 2 and counterweight are mobile along the vertical direction by means of the propulsive effort of towing machine.When car 2 and counterweight were moved along the vertical direction, car 2 was by each car guide rail 1 guiding, and counterweight is by each counterweight rail guidance.
Be connected with overspeed governor 7 at control lever 6.Overspeed governor 7 is wound in the governor sheave (not shown) of the velocity limiter that arranges on the top of hoistway.When car 2 moved along the vertical direction, overspeed governor 7 was mobile with car 2, and governor sheave rotates along with the movement of car 2.When the rotating speed of governor sheave became excessive, velocity limiter was controlled overspeed governor.Overspeed governor 7 is controlled by velocity limiter and is caused car 2 with respect to overspeed governor 7 displacements, and thus, control lever 6 is operated.
The urgent stop mechanism of upside portion 8 has: upside turning cylinder (the 1st turning cylinder) 11, its on even keel are located at and are promptly stopped erecting frame 10; A pair of upside wedge (the 1st brake body) 12, it links via union lever 14 and upside turning cylinder 11, and is shifted along the vertical direction with respect to promptly stopping erecting frame 10 by the rotation of upside turning cylinder 11; And a pair of side guide (the 1st guide portion) 13 that goes up, it is fixed in and promptly stops erecting frame 10, and the upside wedge 12 that is used for being shifted by the rotation of upside turning cylinder 11 is along the direction guiding that contacts and separate with car guide rail 1.
Each upside wedge 12 is configured in respectively on each between the side guide 13 and car guide rail 1.Each upside wedge 12 is by being directed along last side guide 13 towards the direction that contacts with car guide rail 1 with respect to promptly stopping erecting frame 10 to be shifted upward, and each upside wedge 12 is by being directed along last side guide 13 towards the direction of separating with car guide rail 1 with respect to promptly stopping erecting frame 10 to be shifted downwards.
Each upside wedge 12 is directed on one side displacement upward along last side guide 13 on one side, gos deep into thus on each between the side guide 13 and car guide rail 1.By each upside wedge 12 is goed deep on each between the side guide 13 and car guide rail 1, with car guide rail 1 being held between each upside wedge 12.The urgent stop mechanism of upside portion 8 is by providing braking force being held between each upside wedge 12 to car 2 with car guide rail 1.That is, the urgent stop mechanism of upside portion 8 is by making each upside wedge 12 and contact with car guide rail 1 and providing braking force to car 2.
The urgent stop mechanism of downside portion 9 has: downside turning cylinder (the 2nd turning cylinder) 15, its on even keel are located at and are promptly stopped erecting frame 10; Pair of lower wedge (the 2nd brake body) 16, it links via union lever 18 and downside turning cylinder 15, and is shifted along the vertical direction with respect to promptly stopping erecting frame 10 by the rotation of downside turning cylinder 15; And pair of lower guide portion (the 2nd guide portion) 17, it is fixed in and promptly stops erecting frame 10, and the downside wedge 16 that is used for being shifted by the rotation of downside turning cylinder 15 is along the direction guiding that contacts and separate with car guide rail 1.
Each downside wedge 16 is configured in respectively between each following side guide 17 and the car guide rail 1.Each downside wedge 16 is by being directed along side guide 17 down towards the direction that contacts with car guide rail 1 with respect to promptly stopping erecting frame 10 to be shifted upward, and each downside wedge 16 is by being directed along following side guide 17 towards the direction of separating with car guide rail 1 with respect to promptly stopping erecting frame 10 be shifted downwards.
Each downside wedge 16 is directed on one side displacement upward along side guide 17 down on one side, gos deep into each thus down between side guide 17 and the car guide rail 1.By making each downside wedge 16 go deep between each following side guide 17 and the car guide rail 11 of car guide rail being held between each downside wedge 16.The urgent stop mechanism of downside portion 9 is by providing braking force being held between each downside wedge 16 to car 2 with car guide rail 1.That is, the urgent stop mechanism of downside portion 9 is by making each downside wedge 16 and contact with car guide rail 1 and providing braking force to car 2.
Be configured in respectively on each between side guide 13 and each down the car guide rail 1 between side guide 17 form shared guide rail.Thus, each upside wedge 12 can contact with the car guide rail 1 that shares and separate with each downside wedge 16.
Fig. 2 illustrates upside wedge 12 when contacting with the car guide rail 1 of Fig. 1 respectively and the constructional drawing of downside wedge 16.In addition, Fig. 3 illustrates upside wedge 12 when observing from the car guide rail 1 of Fig. 2 and the constructional drawing of downside wedge 16.In the drawings, upside wedge 12 has: castiron wedge main body (brake body main body) 20, it is installed on union lever 14(Fig. 1 in the mode that can rotate); With a plurality of friction linings 21 that pottery is made, they are arranged at wedge main body 20, with car guide rail 1 contact with separate.And, portion's material that wedge main body 20 is made with rolled iron (SS400) for ordinary construction.
Be provided with in wedge main body 20: along the dip plane 20a of last side guide 13; With with car guide rail 1 opposed track opposed faces 20b.Each friction lining 21 is arranged at track opposed faces 20b.In addition, each friction lining 21 forms the outstanding cylindrical portion material from track opposed faces 20b.When upside wedge 12 contacts with car guide rail 1, leave in wedge main body 20 under the state of car guide rail 1, have only each friction lining 21 to contact with car guide rail 1.
Downside wedge 16 has: castiron wedge main body (brake body main body) 22, it is installed on union lever 18(Fig. 1 in the mode that can rotate); With a plurality of friction linings 23 that pottery is made, they are arranged at wedge main body 22, with car guide rail 1 contact with separate.And, portion's material that wedge main body 22 is made with rolled iron (SS400) for ordinary construction.
Be provided with in wedge main body 22: along the dip plane 22a of following side guide 17; With with car guide rail 1 opposed track opposed faces 22b.Each friction lining 23 is arranged at track opposed faces 22b.In addition, each friction lining 23 forms the outstanding cylindrical portion material from track opposed faces 22b.When downside wedge 16 contacts with car guide rail 1, leave in wedge main body 22 under the state of car guide rail 1, have only each friction lining 23 to contact with car guide rail 1.
Each friction lining 21 of upside wedge 12 only be configured in line of centers with track opposed faces 20b be the border about in the zone in two zones.Each friction lining 23 of downside wedge 16 only be configured in line of centers with track opposed faces 22b be the border about in another zone in two zones.Thus, dispose the zone of each friction lining 21 and stagger each other in the horizontal direction in the zone that track opposed faces 22b disposes each friction lining 23 at track opposed faces 20b.That is, if observe upside wedge 12 and downside wedge 16 when contacting with car guide rail 1 along the length direction (that is, along the moving direction of car 2) of car guide rail 1, then each friction lining 21 of upside wedge 12 each friction lining 23 of avoiding downside wedge 16 is configured.Thus, the contact position on car guide rail 1 staggers upside wedge 12 in the horizontal direction each other at the contact position on the car guide rail 1 and downside wedge 16.
And, in this example, make the width dimensions separately (track opposed faces 20b, 22b separately in the horizontal direction size) of wedge main body 20 and wedge main body 22 form mutually the same.In addition, in this example, make the position separately of wedge main body 20 and wedge main body 22 be in identical position in the horizontal direction.
Fig. 4 is the front view that the slip vestige that produces at car guide rail 1 because the upside wedge 12 of Fig. 3 contacts with car guide rail 1 with downside wedge 16 is shown.In the drawings, if upside wedge 12 contacts with car guide rail 1 when car 2 moves with downside wedge 16, then upside wedge 12 and downside wedge 16 can slide at car guide rail 1 owing to the force of inertia of car 2.Thus, the downside slip vestige 25 that produces upside slip vestige 24 that the slip because of upside wedge 12 causes and cause because of the slip of downside wedge 16 at car guide rail 1.Upside slip vestige 24 and downside slip vestige 25 produce in the position of staggering mutually of car guide rail 1, and do not overlap each other.That is, upside slip vestige 24 avoid downside slip vestige 25 the position result from car guide rail 1.
Then, action is described.When car 2 moved, overspeed governor 7 was mobile with car 2, and governor sheave rotates along with the movement of car 2.If the descending speed of car 2 rises for a certain reason and reaches predefined setting supervelocity, then be located at the supervelocity switch work of velocity limiter.Thus, stop to the towing machine power supply that car 2 is moved, and make the brake equipment work of towing machine.
If stop to the descending speed of towing machine power supply back car 2 further rise and reach than set supervelocity high promptly stop speed, then velocity limiter moves, thus overspeed governor 7 is controlled by velocity limiter.Thus, the movement of overspeed governor 7 stops, and car 2 is mobile downwards with respect to overspeed governor 7.
If car 2 moves with respect to overspeed governor 7, then control lever 6 is operated, thereby upside turning cylinder 11 is rotated.At this moment, downside turning cylinder 15 also rotates in linkage by linkage 19 and upside turning cylinder 11.Thus, each upside wedge 12 is on one side by 13 guiding of side guide on each displacement upward on one side, and Yi Bian each downside wedge 16 is shifted upward by 17 guiding of side guide under each on one side, each upside wedge 12 contacts with the car guide rail 1 that shares simultaneously with each downside wedge 16.
After this, each upside wedge 12 and each downside wedge 16 slide in the mutually different part of car guide rail 1 respectively, simultaneously, car 2 descends, each upside wedge 12 gos deep on each between the side guide 13 and car guide rail 1 thus, and each downside wedge 16 gos deep into each down between side guide 17 and the car guide rail 1.Thus, car 2 is produced braking force, thereby car 2 is promptly stopped.
In the emergency braking device 5 of such elevator, contact position on car guide rail 1 staggers in the horizontal direction each other at the contact position on the car guide rail 1 and downside wedge 16 owing to upside wedge 12, thereby can make upside wedge 12 avoid the sliding surface that slides with respect to car guide rail 1 of downside wedge 16 and slide with respect to car guide rail 1.Thus, can avoid upside wedge 12 to slide at the sliding surface that the slip because of downside wedge 16 becomes high temperature, thereby can suppress upside wedge 12 with respect to the reduction of the friction coefficient of car guide rail 1.Therefore, upside wedge 12 is deeply gone up between side guide 13 and the car guide rail 1 easily, thereby, be not only the braking force of the urgent stop mechanism of downside portion 9, the braking force of the urgent stop mechanism of upside portion 8 also can produce more reliably.Thus, can realize the raising of reliability of the action of emergency braking device 5.In addition, be not only downside wedge 16, upside wedge 12 also can be suppressed with respect to the reduction of the friction coefficient of car guide rail 1, therefore, and the pressing force in the time of can reducing upside wedge 12 is contacted with car guide rail 1 with downside wedge 16.Therefore, miniaturization, weight saving and the cost that can also realize emergency braking device 5 reduces.
In addition, because upside wedge 12 and downside wedge 16 have and car guide rail 1 contact and the friction lining of being made by pottery 21,23 that separates, therefore, can prevent that upside wedge 12 and downside wedge 16 from plastic deformation or fusion, breakage etc. taking place when sliding with respect to car guide rail 1.Thus, can further improve the reliability of the action of emergency braking device 5.In addition, the high speed of elevator can be realized, the miniaturization of emergency braking device 5 can also be further realized.
And, in above-mentioned example, friction lining 21,23 be shaped as cylindricly, but be not limited to this, also can make friction lining 21,23 be shaped as for example cuboid or cube etc.
And in above-mentioned example, upside wedge 12 has the friction lining 21 that pottery is made, but friction lining 21 also can not be that pottery is made.For example, can make friction lining 21 form the castiron parts identical with wedge main body 20, thus moulding wedge main body 20 and each friction lining 21 integratedly.
And in above-mentioned example, downside wedge 16 has the friction lining 23 that pottery is made, but friction lining 23 also can not be that pottery is made.For example, can make friction lining 23 form the castiron parts identical with wedge main body 22, thus moulding wedge main body 22 and each friction lining 23 integratedly.
And, in above-mentioned example, be provided with a plurality of friction linings 21,23 in wedge main body 20,22, can not a plurality of also but be located at wedge main body 20,22 friction lining 21,23 quantity.In this case, the size of friction lining is adjusted into guarantees with respect to the area of contact of car guide rail 1 size for predetermined value.
And in above-mentioned example, the wedge main body 20 of upside wedge 12 is configured in identical position in the horizontal direction with the wedge main body 22 of downside wedge 16, but wedge main body 20 and wedge main body 22 are configured with staggering each other in the horizontal direction.In this case, each friction lining 21 can be configured in the whole zone of the track opposed faces 20b of wedge main body 20, and each friction lining 23 be configured in the whole zone of the track opposed faces 22b of wedge main body 22.
And in above-mentioned example, the progression of urgent stop mechanism portion forms the urgent stop mechanism of upside portion 8 and the urgent stop mechanism of downside portion 9 these two-stages, but the progression that also can make urgent stop mechanism portion is more than 3 grades.
And, in above-mentioned example, emergency braking device 5 is located at car 2, but also emergency braking device 5 can be located at counterweight.In this case, emergency braking device 5 comes to provide braking force to counterweight by controlling the counterweight guide rail.
Label declaration
1: car guide rail (guide rail); 2: car (lifting body); 5: emergency braking device; 8: the urgent stop mechanism of upside portion (the 1st urgent stop mechanism portion); 9: the urgent stop mechanism of downside portion (the 2nd urgent stop mechanism portion); 12: upside wedge (the 1st brake body); 16: downside wedge (the 2nd brake body); 20,22: wedge main body (brake body main body); 21,23: friction lining.
Claims (2)
1. the emergency braking device of an elevator is characterized in that, the emergency braking device of described elevator is located at by the lifting body of rail guidance, and being used for provides braking force to described lifting body,
The emergency braking device of described elevator possesses:
The 1st urgent stop mechanism portion, it has and can contact and the 1st brake body that separates with described guide rail, and the described the 1st urgent stop mechanism portion provides braking force by making described the 1st brake body contact with described guide rail to described lifting body; With
The 2nd urgent stop mechanism portion, it has and can contact and the 2nd brake body that separates with described guide rail, the described the 2nd urgent stop mechanism portion is configured in the below of the described the 1st urgent stop mechanism portion, and provides braking force by making described the 2nd brake body contact with described guide rail to described lifting body
Contact position on described guide rail staggers described the 1st brake body in the horizontal direction each other at the contact position on the described guide rail and described the 2nd brake body.
2. the emergency braking device of elevator according to claim 1 is characterized in that,
At least any one party in described the 1st brake body and described the 2nd brake body has: the brake body main body; With the friction lining that pottery is made, it is located at described brake body main body, and with the contact of described guide rail with separate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/068486 WO2012053073A1 (en) | 2010-10-20 | 2010-10-20 | Emergency stop device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103201206A true CN103201206A (en) | 2013-07-10 |
Family
ID=45974809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800697307A Pending CN103201206A (en) | 2010-10-20 | 2010-10-20 | Emergency stop device for elevator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2631208A1 (en) |
| JP (1) | JPWO2012053073A1 (en) |
| KR (1) | KR20130093129A (en) |
| CN (1) | CN103201206A (en) |
| WO (1) | WO2012053073A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014033846A1 (en) * | 2012-08-28 | 2014-03-06 | 株式会社日立製作所 | Device for stopping elevator in emergency and elevator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103763A (en) * | 1985-06-06 | 1986-12-03 | 三菱电机株式会社 | Emergency braking device for elevators |
| JPH02295873A (en) * | 1989-05-09 | 1990-12-06 | Mitsubishi Electric Corp | Emergency stop device for elevator |
| CN1132174A (en) * | 1994-12-27 | 1996-10-02 | 株式会社日立制作所 | Elevator apparatus |
| JPH10258977A (en) * | 1997-03-17 | 1998-09-29 | Toshiba Corp | Brake shoe for elevator emergency stopper, elevator emergency stopper, and elevator having emergency stop mechanism |
| CN1364138A (en) * | 2000-01-11 | 2002-08-14 | 株式会社东芝 | Elevator emergency stopping device |
| CN1960931A (en) * | 2004-12-15 | 2007-05-09 | 三菱电机株式会社 | Elevator emergency stop device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597682A (en) | 1982-07-07 | 1984-01-14 | 三菱電機株式会社 | Emergency stop device for elevator |
| JP2803974B2 (en) | 1993-07-30 | 1998-09-24 | 三菱電機株式会社 | Elevator emergency stop device |
| JP2001354373A (en) | 2000-06-14 | 2001-12-25 | Toshiba Elevator Co Ltd | Emergency stopping device of elevator |
-
2010
- 2010-10-20 CN CN2010800697307A patent/CN103201206A/en active Pending
- 2010-10-20 JP JP2012539511A patent/JPWO2012053073A1/en active Pending
- 2010-10-20 KR KR1020137012709A patent/KR20130093129A/en not_active Application Discontinuation
- 2010-10-20 WO PCT/JP2010/068486 patent/WO2012053073A1/en active Application Filing
- 2010-10-20 EP EP10858629.8A patent/EP2631208A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103763A (en) * | 1985-06-06 | 1986-12-03 | 三菱电机株式会社 | Emergency braking device for elevators |
| JPH02295873A (en) * | 1989-05-09 | 1990-12-06 | Mitsubishi Electric Corp | Emergency stop device for elevator |
| CN1132174A (en) * | 1994-12-27 | 1996-10-02 | 株式会社日立制作所 | Elevator apparatus |
| JPH10258977A (en) * | 1997-03-17 | 1998-09-29 | Toshiba Corp | Brake shoe for elevator emergency stopper, elevator emergency stopper, and elevator having emergency stop mechanism |
| CN1364138A (en) * | 2000-01-11 | 2002-08-14 | 株式会社东芝 | Elevator emergency stopping device |
| CN1960931A (en) * | 2004-12-15 | 2007-05-09 | 三菱电机株式会社 | Elevator emergency stop device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130093129A (en) | 2013-08-21 |
| JPWO2012053073A1 (en) | 2014-02-24 |
| EP2631208A1 (en) | 2013-08-28 |
| WO2012053073A1 (en) | 2012-04-26 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |