CN1960931A - Elevator emergency stop device - Google Patents
Elevator emergency stop device Download PDFInfo
- Publication number
- CN1960931A CN1960931A CNA2004800432175A CN200480043217A CN1960931A CN 1960931 A CN1960931 A CN 1960931A CN A2004800432175 A CNA2004800432175 A CN A2004800432175A CN 200480043217 A CN200480043217 A CN 200480043217A CN 1960931 A CN1960931 A CN 1960931A
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- China
- Prior art keywords
- voussoir
- pressing force
- lifting body
- emergency stop
- stop device
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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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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- 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)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
An emergency stop device for an elevator, moderating deceleration in braking operation without complex control and with a simple construction, thereby not causing discomfort to passengers and damage to an elevator body and a counterweight. The emergency stop device for an elevator has an elevator body traveling up and down along a guide rail and having an elevator car in which passengers are received and a frame body supporting the elevator car, a wedge piece moving upward, relative to the elevator body, along the guide rail in emergency, and a pressing body for pressing the wedge piece to the guide rail by using an elastic member. The emergency stop device also has a pressing force regulation means that reduces pressing force to the wedge piece when elevator body loaded mass, varied by the getting on and off of passengers, is greater, and increases the pressing force to the wedge piece when the elevator body loaded mass is less.
Description
Technical field
The present invention relates to the elevator emergency stop device that a kind of lifting body that hypervelocity is descended is braked.
Background technology
Existing elevator emergency stop device comprises: voussoir, it is arranged on by main rope hanging and along on the lifting body of lifting rail, and along guide rail with respect to the lifting body upward movement; Pressing body, its use elastomeric element with this voussoir by being pressed on the guide rail; And frame parts, it takes in these structure members, and pressing body is formed with opposed with the dip plane of voussoir and parallel with the dip plane of voussoir dip plane, is provided with the roller that rolls along the dip plane between the dip plane of the dip plane of voussoir and pressing body.In addition, when urgent, promptly make the descending speed of lifting body surpass command speed and reach predefined when crossing speed because of the fault of control convenience or the fracture of main rope etc., voussoir is with respect to the lifting body upward movement, by wedging action, the application force that pressing body overcomes elastomeric element is pressed towards the outside, by means of this antagonistic force, voussoir is pushed guide rail and is produced braking force, thereby lifting body is braked.At this moment, the upper end of voussoir and frame parts butt, voussoir stops upward movement, and the cooresponding pressing force of the application force with elastomeric element of this moment still is held.(for example, with reference to patent documentation 1)
In another existing elevator emergency stop device, on the basis of said structure, also be provided with: the pressing force adjustment unit, itself and elastomeric element are set up in parallel, and are used to adjust the application force of elastomeric element; Control unit, it is used to control this pressing force adjustment unit; The deceleration/decel detecting device, it is used to detect the deceleration/decel of lifting body.Control unit constitutes such control pressing force adjustment unit: surpass under the situation of setting value at the deceleration/decel of lifting body, weaken the pressing force of pressing body by the elastic force that weakens elastomeric element, be lower than at deceleration/decel under the situation of setting value, strengthen pressing force.(for example, with reference to patent documentation 2)
In addition, in other existing elevator emergency stop device, replace above-mentioned elastomeric element, be provided with the pressure container that is packaged with fluid, by kind and the pressure of adjusting the fluid in the pressure container pressing force is changed, thereby stop lifting body and deceleration/decel can not increased.(for example, with reference to patent documentation 3)
Patent documentation 1: special public clear 56-155178 number of Japanese patent gazette (the 1st page, Fig. 2)
Patent documentation 2: Japanese patent gazette spy open 2001-341957 number (the 4th, 6 page, Fig. 5)
Patent documentation 3: Japanese patent gazette spy open 2001-2342 number (the 5th～9 page, Fig. 1)
In existing elevator emergency stop device, because upper end and the frame parts butt of voussoir, voussoir stops upward movement, and the cooresponding pressing force of the application force with elastomeric element at this moment still is held, and therefore, has following problem.
Common elevator is to suspend lifting body and the counterweight with car in midair by main rope, and makes lifting body and counterweight be the bucket type lifting by driving main rope.And, building standard law implementing regulations and EN standard (European Norm: European standard) regulation: should stop lifting body under the situation of mean deceleration when braking maneuver smaller or equal to 1.0G, so that elevator emergency stop device is when braking maneuver, neither can make the passenger produce sticky feeling, also can not damage lifting body and counterweight.Usually, the braking force of elevator emergency stop device is set for: be mounted with in the car of lifting body under the situation of nominal payload, brake with the mean deceleration of about 0.6G when lifting body free falls such as main rope fracture.The setting of this braking force can be carried out like this: with the upper end of voussoir and frame parts butt, the application force of elastomeric element when voussoir stops upward movement, promptly pressing force is set at predetermined value.
Thereby, owing to set the pressing force of constant voussoir, be the braking force of 0.6G so that make deceleration/decel when being formed on load carrying ability for nominal payload, and it is irrelevant with the size of the load carrying ability of lifting body, therefore, when load carrying ability during less than nominal payload, the deceleration/decel of glancing impact will increase.When the deceleration/decel when braking maneuver became big, it was big to impact corresponding also change, can make the passenger produce sticky feeling, perhaps can damage lifting body and counterweight.In addition, in order not damage lifting body and counterweight, must reinforce the structure of lifting body, improve impact resistance, thereby the weight of lifting body is increased, this is very uneconomical.
In addition, foregoing is under the situation of lifting body free falls such as main rope fracture, and under main rope does not have state that fracture, lifting body and counterweight be suspended, make the descending speed of lifting body surpass command speed and reach predefined to cross speed because of the fault of control convenience etc., elevator emergency stop device has carried out under the situation of action, because being equivalent to the power that makes progress of counterweight quality acts on the lifting body by main rope, therefore, the deceleration/decel during braking maneuver just becomes bigger.
In another existing elevator emergency stop device, comprising: elastomeric element; The pressing force adjustment unit, itself and elastomeric element are set up in parallel, and are used to adjust the elastic force of elastomeric element; Control unit, it is used to control this pressing force adjustment unit; And the deceleration/decel detecting device, it is used to detect the deceleration/decel of lifting body, at glancing impact, owing to will carry out adjusting according to the deceleration/decel of the lifting body that changes constantly the control of pressing force, therefore, must carry out complicated control.In addition, because the pressing force adjustment unit is not to adjust elastomeric element but the structure of adjusting the application force of elastomeric element itself, therefore, install very complicated, very uneconomical.And, equip common elevator institute N/R, be used to detect the deceleration/decel detecting device of the deceleration/decel of lifting body, thus very uneconomical.
In addition, in other existing elevator emergency stop device, replace elastomeric element to be provided with the pressure container that is packaged with fluid, adjust pressing force by the pressure in the adjustment pressure container and the viscosity of fluid, therefore, fluid pressure action is arranged all the time in pressure container, thereby must carry out the management of the leakage etc. of fluid pressure.
Summary of the invention
The present invention proposes in order to address the above problem, its purpose is to provide a kind of elevator emergency stop device, and it needn't carry out complicated control, the deceleration/decel in the time of just can relaxing braking maneuver with simple structure, neither can make the passenger produce sticky feeling, also can not damage lifting body and counterweight.
In addition, the present invention also aims to provide a kind of elevator emergency stop device, whether it suspends lifting body in midair according to main rope, and the deceleration/decel when relaxing braking maneuver neither can make the passenger produce sticky feeling, also can not damage lifting body and counterweight.
In elevator emergency stop device of the present invention, comprising: lifting body, it is along lifting rail, and has and take advantage of the car that carries the passenger and the support body of this car of supporting; Voussoir, it is arranged at this lifting body, when urgent, this voussoir along described guide rail with respect to described lifting body upward movement; And pressing body, its use elastomeric element with this voussoir by being pressed on the described guide rail, described elevator emergency stop device also comprises the pressing force adjustment unit, when the load carrying ability of the lifting body that changes when the turnover because of the passenger increases, this pressing force adjustment unit reduces the pressing force of voussoir, when the load carrying ability of lifting body reduced, this pressing force adjustment unit increased the pressing force of voussoir.
The present invention can carry out braking maneuver with desirable deceleration/decel according to the loading situation of lifting body, and relaxes the impact of glancing impact thus, neither can make the passenger produce sticky feeling, also can not damage lifting body and counterweight.
Description of drawings
Fig. 1 is the integrally-built figure that the elevator of the elevator emergency stop device in the embodiment of the present invention 1 is used in expression.
Fig. 2 represents the main portion of the door of car, is the figure of expression door closing state.
Fig. 3 represents the main portion of the door of car, is the figure of an expression state of opening.
Fig. 4 is the figure of the main portion of the elevator emergency stop device in the expression embodiment of the present invention 1.
Fig. 5 is the figure of the action of the elevator emergency stop device in the expression embodiment of the present invention 1.
Fig. 6 is the figure of the action of the elevator emergency stop device in the expression embodiment of the present invention 1.
Fig. 7 is the figure of the elevator emergency stop device in the expression embodiment of the present invention 2.
Fig. 8 is the figure of the main portion of the elevator emergency stop device in the expression embodiment of the present invention 3.
Fig. 9 is the overall diagram of the arrow C direction observed fastening body action mechanism of expression from Fig. 8, is the figure of an expression state of opening.
Figure 10 is the overall diagram of the arrow C direction observed fastening body action mechanism of expression from Fig. 8, is the figure of expression door closing state.
Figure 11 is the figure of the elevator emergency stop device in the expression embodiment of the present invention 4.
Figure 12 is the figure of the action of the elevator emergency stop device in the expression embodiment of the present invention 4.
Figure 13 is the figure of the elevator emergency stop device in the expression embodiment of the present invention 5.
Figure 14 is the figure of the action of the elevator emergency stop device in the expression embodiment of the present invention 5.
Figure 15 is the figure of the elevator emergency stop device in the expression embodiment of the present invention 6.
Figure 16 is the figure of the action of the elevator emergency stop device in the expression embodiment of the present invention 6.
Label declaration
1: lifting body; 2: car; 3: support body; 3a: car underframe; 4: elastic body; 5: meausring apparatus; 6: counterweight; 7: main rope; 7a: fag end spring; 8: drive rope sheave; 9: deflector sheave; 10: lead boots; 11: guide rail; 12,12a, 12b: emergency braking device; 13: velocity limiter; 14: the speed limit rope; 15: tension wheel; 16: safe connecting rod; 17: top rod; 18: device for opening/closing door; 19a, 19b: door; 20: threshold; 21: door drive; 22: gate driver; 23: band; 24: wheel flutter; 25a, 25b: door hanger; 26: the door on-off switch; 27: block; 51: frame parts; 52: elastomeric element; 53: pressing body; 53a: the dip plane of pressing body; 54: roller; 55: voussoir; 55a: the dip plane of voussoir; 55b: the brake surface of voussoir; 56: the voussoir position adjustment unit; 56a: stop part; 56b: driving body; 57: the voussoir position adjustment unit; 57a: stop part; 57b: actuator; 58: nut; 59: band; 60: belt wheel; 70: the fastening body; 70a: S. A.; 70b: terminal part; 71; Fastening body action mechanism; 72a, 72b: groups of metal filaments; 73a, 73b: winding pulley; 74a: first wheel flutter; 74b: the 3rd wheel flutter; 75a: second wheel flutter; 80: the voussoir position adjustment unit; 80a: stop part; 80b: stop part link; 81a: first connecting rod; 81b: second connecting rod; 82: support unit; 83: connecting rod mechanism; 90: the voussoir position adjustment unit; 90a: stop part; 90b: stop part link; 91: first connecting rod; 92: link; 93: support unit; 94: connecting rod mechanism; 100: switch.
The specific embodiment
Below, with reference to accompanying drawing preferred implementation of the present invention is described.
Fig. 1 to Fig. 6 is the figure that explanation is used for implementing the elevator emergency stop device of embodiments of the present invention 1, Fig. 1 is the figure of the integral structure figure of expression elevator, Fig. 2, Fig. 3 are the figure of main portion of the door of expression car, Fig. 4 is the figure of the main portion of expression elevator emergency stop device, and Fig. 5, Fig. 6 are the figure of the action of explanation elevator emergency stop device.
In Fig. 1, lifting body 1 comprises: take advantage of the car 2 that carries the passenger; And the support body 3 that supports this car 2.And, have car underframe 3a in the bottom of support body 3, when preventing lifting from the vibration propagation of support body 3 to car 2, the elastic body 4 that for example is made of rubber is installed between car underframe 3a and car 2.In addition, be provided with meausring apparatus 5 between car underframe 3a and car 2, the quality that this meausring apparatus 5 is used to measure the passenger of turnover car 2 is a load carrying ability.Elevator generally is equipped with meausring apparatus 5, does not turn round so that elevator can not surpass under the situation of predetermined value at load carrying ability.This meausring apparatus 5 is made of differential transformer, it comes to measure load carrying ability equivalently in the following manner: owing to pass in and out the variation of caused load carrying ability because of the passenger, the elastic body 4 that is installed on the car 2 produces distortion, measures this deflection with the differential transformer of meausring apparatus 5 then.In addition, meausring apparatus 5 is not limited in differential transformer, and for example, laser shift sensor etc. are as long as energy measurement distance at interval can be any device.
In addition, on lifting body 1, be equipped with at four angles up and down and lead boots 10, lead engaging of boots 10 and guide rail 11 by this, lifting body 1 is along guide rail 11 liftings.In addition, in the bottom of lifting body 1, a pair of emergency braking device 12 is installed leading between boots 10 and the lifting body 1, this emergency braking device 12 is used in control convenience fault or main rope fracture etc. lifting body 1 braking being stopped.Be provided with the velocity limiter 13 of the speed that detects lifting body 1 at the top of hoistway.Be provided with tension wheel 15 in the bottom of hoistway, this tension wheel 15 is used to make reel and is installed in speed limit rope 14 on the velocity limiter 13 along the hoistway tensioning.14 in speed limit rope is located between velocity limiter 13 and the tension wheel 15.
In addition, be provided with folder rope portion (not shown) in velocity limiter 13, this folder rope portion moves when the descending speed of lifting body 1 surpasses command speed and reaches predefined supervelocity, to control speed limit rope 14.Speed limit rope 14 is connected with lifting body 1 by safe connecting rod 16, and this safe connecting rod 16 is connected with emergency braking device 12 by the top rod on the two sides that are arranged on lifting body 1 17.
In addition, car 2 is provided with device for opening/closing door 18.Use Fig. 2 that this device for opening/closing door 18 is described.In Fig. 2, in device for opening/closing door 18, be provided with: about become a pair of door 19a, 19b; Threshold 20, it is arranged on the bottom of car 2, and engages with the bottom of door 19a, 19b slidably; Door drive 21, the top that it is arranged on car 2 is used for driving gate 19a, 19b and opens and closes.In door drive 21, be provided with: gate driver 22; With wheel flutter 24, it is used to make reel and is installed in 23 tensionings of being with on this gate driver 22.In addition, be installed in door hanger 25a, the 25b on a 19a, 19b top, being installed in respectively reel to be installed with 23 upper and lower.In door drive 21, for the open and-shut mode of detecting gate 19a, 19b, be equipped with an on-off switch 26, this on-off switch 26 by be installed in block 27 butts on the door 19b and move.
Herein, the on-off action of opposite house 19a, 19b describes.Fig. 2 represents a 19a, 19b closing state, and Fig. 3 represents the state opened.In Fig. 2, thereby drives gate driver 22 makes it with respect to figure left-hand revolution rotating band 23, thus, is installed in door hanger 25a, 25b on 23 and door 19a, 19b, respectively to the direction action of opening, thereby as shown in Figure 3, becomes the state of opening.Switch 26 is according to the switching of door 19a, 19b, and with block 27 butts and the butt not that are installed on the 19b, switch 26 carries out the action of ON and OFF thus.In addition, generally in elevator, be equipped with above-described structure member.
Next, the structure to emergency braking device 12 describes.Fig. 4 is the figure of the main portion of the observed expression emergency braking device 12 of arrow A direction from Fig. 1.In Fig. 4, emergency braking device 12 has frame parts 51, and this frame parts 51 is fixed on the lower surface of car underframe 3a, is provided with in the inside of this frame parts 51: coil spring 52, and it is installed on the frame parts 51 as elastomeric element; Pressing body 53, it is fastened on this coil spring 52, and has gradually narrow and constitute the dip plane 53a that wedge-like forms by the bottom that makes this pressing body 53; Roller 54, it rolls on the 53a of the dip plane of pressing body 53; Voussoir 55, it is configured between guide rail 11 and the roller 54, and has gradually narrowly and constitute the dip plane 55a that wedge-like forms by the top that makes voussoir 55, and the dip plane 53a of this dip plane 55a and pressing body 53 is opposed.Voussoir 55 has brake surface 55b at the opposition side of dip plane 55a, and the side of this brake surface 55b and guide rail 11 is opposed.In addition, top rod 17 is installed on voussoir 55.Lead boots 10 and be fixed on the lower surface of the frame parts 51 of emergency braking device 12, and engage with guide rail 11.
In addition, emergency braking device 12 is provided with voussoir position adjustment unit 56.Voussoir position adjustment unit 56 is provided with: stop part 56a, it to be can sliding along the mode that frame parts 51 moves up and down, and with the upper end butt of voussoir 55; With driving body 56b, it drives this stop part 56a along the vertical direction.And stop part 56a is made of the tooth bar with profile of tooth, and driving body 56b is by constituting with the profile of tooth ingear miniature gears of stop part 56a and the electrical motor (not shown) of Drive pinion.In addition, for the upper-lower position of fixed stop 56a, not shown electrical motor has the drg as the stop part fixed cell.In addition, above-mentioned coil spring 52, pressing body 53, roller 54, voussoir 55, stop part 56a and driving body 56b all become one to constitute over the ground about guide rail 11.
Below action is described.When the elevator normal operation, drive rope sheave 8 and drive main rope 7, the lifting running that makes the lifting body 1 that is suspended on the main rope 7 and counterweight 6 carry out bucket type.Lifting body 1 along with lead guide rail 11 lifting in hoistway that boots 10 engage.Be driven in linkage by safe connecting rod 16 and of the lifting of lifting body 1 bonded assembly speed limit rope 14, thereby the velocity limiter 13 that speed limit rope 14 is installed of reeling is rotated with lifting body 1.Then, as shown in Figure 4, emergency braking device 12 remains such state: voussoir 55 stops at the position of bottom, and its brake surface 55b separates with respect to guide rail 11.Here, when elevator in the urgent moment, promptly make the descending speed of lifting body 1 surpass command speed and when reaching predefined supervelocity owing to the fault of control convenience or the fracture of main rope 7 etc., speed limit rope 14 is controlled by the not shown folder rope portion of velocity limiter 13, make safe connecting rod 16 rotate, top rod 17 stops prior to lifting body 1.That is, top rod 17 is with respect to lifting body 1 upward movement.
Thus, with top rod 17 bonded assembly voussoirs 55 with respect to lifting body 1 upward movement.Then, since pressing body 53 and voussoir 55 have by constituting dip plane 53a and the dip plane 55a that wedge-like forms, therefore, pass through wedge effect, voussoir 55 is upward movement more, is being guided near guide rail 11 by roller 54 more, thereby brake surface 55b is contacted with guide rail 11.Then, the application force that voussoir 55 further upward movements, pressing body 53 overcome coil spring 52 is pressed towards the outside, and by this antagonistic force, voussoir 55 is pushed guide rail 11 and produced braking force, thereby lifting body 1 is braked.Then, as shown in Figure 5, the upper end of voussoir 55 and stop part 56a butt, voussoir 55 stops upward movement.The position that hereinafter voussoir 55 is stopped upward movement being called the upward movement stop position.At the upward movement stop position of voussoir 55, it is braking force that the application force of coil spring 52 just becomes pressing force, makes lifting body 1 be braked.
Next, use Fig. 4, Fig. 5, Fig. 6 that the action of voussoir position adjustment unit 56 is described.In order to carry out braking maneuver with predetermined deceleration/decel, braking force must be set greatlyyer with it under the bigger situation of the quality of lifting body 1 accordingly, under the less situation of the quality of lifting body 1, must set lessly accordingly with it.Therefore, must set braking force according to the load carrying ability of car 2.
As mentioned above, owing to the variation that passes in and out caused load carrying ability because of the passenger, elastic body 4 distortion by measuring this deflection with meausring apparatus 5, just can be measured the load carrying ability of car 2.Now, measure load carrying ability by meausring apparatus 5, be in the load carrying ability maximum under the situation of nominal payload, as shown in Figure 4, voussoir position adjustment unit 56 makes stop part 56a move to position topmost by driving body 56b, stops so that making voussoir 55 move upward to uppermost position in fig-ure at glancing impact.At this moment, as shown in Figure 5, pressing body 53 is pressed to the outside to greatest extent with respect to coil spring 52, and the application force of coil spring 52 also is maximum.Thus, the pressing force of voussoir 55 is that braking force is also for maximum.Use Fig. 6 to the load carrying ability minimum, promptly have only a passenger's situation to describe below.In the case, as shown in Figure 6, voussoir position adjustment unit 56 makes stop part 56a move to lowest positions by driving body 56b, stops so that making voussoir 55 move upward to upper/lower positions at glancing impact.At this moment, pressing body 53 with respect to coil spring 52 by Min. press to the outside, the application force of coil spring 52 also be the minimum.Thus, the pressing force of voussoir 55 is that braking force is also for minimum.In addition, when load carrying ability is between minimum and maximum, set the upward movement stop position of voussoir 55, set the pressing force of voussoir 55 thus by the upper-lower position of adjusting stop part 56a therewith accordingly.
Below, the interlock with voussoir position adjustment unit 56 describes to device for opening/closing door 18.When lifting body 1 stops at elevator floor stops, open a 19a, 19b by device for opening/closing door 18, the passenger passes in and out car 2.At this moment, detect the ON state of an on-off switch 26, promptly detect the state that a 19a, 19b open, as mentioned above, quality according to the passenger is a load carrying ability, voussoir position adjustment unit 56 is failure to actuate by the drg that makes driving body 56b and is made motor action, adjusts the upper-lower position of stop part 56a, thereby the pressing force of the voussoir 55 of glancing impact is set at power corresponding to load carrying ability.Then, when passenger's turnover finishes, door 19a, when 19b closes, detect the OFF state of an on-off switch 26, promptly detect a 19a, 19b closing state, voussoir position adjustment unit 56 is failure to actuate by the electrical motor that makes driving body 56b and is made the drg action, fixes the upper-lower position that carries out adjusted stop part 56a according to load carrying ability.Thereby, be mounted with at lifting body 1 lifting under passenger's the state during, stop part 56a is keeping being fixed on the state on the adjusted upper-lower position.
Next, the braking force to elevator emergency stop device describes.The quality that one highest wisdom is established unloaded lifting body is W, and establishing load carrying ability is Wc, and establishing the power towards the top that acts on lifting body because of the counterweight quality is Fb, and the mean deceleration of establishing glancing impact is α, and then braking force F can be represented by following formula.
F={ (W+Wc)+(W+Wc) α } g-Fb formula 1
Herein, g is an acceleration due to gravity.That is, braking force F is: supporting carry out lifting total mass (W+Wc) self power and the power that total mass is slowed down with deceleration/decel α and, deduct poor towards the power gained of top that quality because of counterweight acts on lifting body again.
Elevator emergency stop device is when braking maneuver, in order neither to make the passenger produce sticky feeling, can not damage lifting body and counterweight again, in building standard law implementing regulations and EN standard, stipulate, should stop lifting body under the situation of mean deceleration when action smaller or equal to 1.0G.Usually, the braking force of elevator emergency stop device is set at: under the situation of nominal payload, when main rope fracture etc. and when making the lifting body free fall, making mean deceleration is 0.6G.Thereby, if to establish nominal payload be W1, then Fb=0, α=0.6G, Wc=W1, the braking force Fs that is set just is:
Fs={ (W+W1)+(W+W1) * 0.6}g formula 2
When being light condition in the car of lifting body,, then have following relation to set up herein, if making the mean deceleration of emergency braking device when braking maneuver of having set braking force Fs is α:
Fs={W+W α } g formula 3
In addition, for example, when the quality W of the lifting body of zero load is under the situation of nominal payload W1, that is, under the situation of W=W1, can get by formula 2, formula 3 and W=W1:
{ W+W α } g={ (W+W)+(W+W) * 0.6}g formula 4
Mean deceleration α is α=2.2G, and it has surpassed the 1.0G that stipulates in building standard law implementing regulations and the EN standard greater than the 0.6G with the mean deceleration under the cargo-carring situation of nominal payload.Set the pressing force of constant voussoir like this, so that making deceleration/decel when being formed on load carrying ability for nominal payload is the braking force of 0.6G, and irrelevant with the size of the load carrying ability of lifting body, in this case, when load carrying ability diminished, the deceleration/decel of glancing impact will increase.
In the elevator emergency stop device of present embodiment, if the desirable mean deceleration of glancing impact is α c, set the pressing force of voussoir 55 by the upper-lower position of adjusting stop part 56a, thereby set braking force Fc, make that braking force Fc cooresponding with it is when for example making lifting body 1 free fall because of main rope 7 fractures:
Fc={ (W+Wc)+(W+Wc) α c}g formula 5
Thus, the mean deceleration that can make lifting body 1 glancing impact be desirable mean deceleration α c (for example, 0.6G), and irrelevant with the loading situation of car 2.
Like this, present embodiment is such elevator emergency stop device, it has the pressing force adjustment unit, in this pressing force adjustment unit, measure the load carrying ability of car 2 with meausring apparatus 5, according to this amount of recording, voussoir position adjustment unit 56 is adjusted the upper-lower position of stop part 56a, and the upward movement stop position of the voussoir 55 of setting glancing impact, the pressing force that comes to set according to load carrying ability voussoir 55 thus is a braking force.
As mentioned above, in the elevator emergency stop device of present embodiment, owing to measure the load carrying ability of lifting body by meausring apparatus 5, and set the pressing force of voussoir 55 according to this load carrying ability, glancing impact is slowed down, therefore with desirable mean deceleration, can carry out braking maneuver with desirable deceleration/decel according to the loading situation of lifting body 1, can relax the impact of glancing impact thus, neither can make the passenger produce sticky feeling, also can not damage lifting body 1 and counterweight 6.In addition, because the structure of the lifting body 1 that do not need reinforcement to improve Dent resistance, therefore, can not make the weight of lifting body 1 increase, can obtain the elevator emergency stop device of very economical.And, do not need the deceleration/decel detecting device, needn't carry out complicated control, by equipment such as the elastic body 4 that uses in the common elevator and meausring apparatuses 5, can relax the impact of glancing impact with extremely simple structure, thereby can obtain neither to make the passenger produce sticky feeling, also can not damage the elevator emergency stop device of lifting body 1 and counterweight 6.Usually, in the elevator operation process, though elevator emergency stop device moves hardly, stipulate in building standard law implementing regulations and EN standard: the mean deceleration during braking maneuver should be smaller or equal to 1.0G.In the present embodiment, needn't carry out complicated control, just can obtain with extremely simple structure can standard compliant elevator emergency stop device.
In addition, in the pressing force adjustment unit of present embodiment, owing to pass through the voussoir position adjustment unit 56 of the upward movement stop position of setting voussoir 55, set the pressing force of voussoir 55 according to load carrying ability, therefore, do not need the equipment adjusted as the application force of the coil spring 52 of elastomeric element itself, only voussoir position adjustment unit 56 these extremely simple structures of the upward movement stop position by setting voussoir 55 just can constitute the pressing force adjustment unit, can obtain very economical elevator emergency stop device.In addition, voussoir position adjustment unit 56 can be made of this simple structure of upward movement stop position of setting voussoir 55 by the upper-lower position of adjusting stop part 56a.In addition, because the unit that applies pressing force is not the pressure container that is packaged with fluid, but the elastomeric element that uses in the common elevator, therefore, do not need to carry out the management of the leakage etc. of fluid pressure, can obtain the good elevator emergency stop device of maintainability.And, because present embodiment has drg, this drg is the stop part fixed cell of the upper-lower position of fixed stop 56a, therefore, by passing in and out car 2 the passenger and closing after a 19a, the 19b, fixed stop 56a carries out adjusted upper-lower position, make during lifting body 1 lifting, stop part 56a keeps adjusted upper-lower position, thereby can under the state of maintenance and the cooresponding braking force of load carrying ability, carry out braking maneuver, thereby can obtain the high elevator emergency stop device of reliability.
In addition, elastomeric element is made of coil spring 52, but is not limited in this, and for example also can constitute: the leaf spring with U word shape constitutes elastomeric element, and the both ends of the leaf spring of this U word shape are engaged with pressing body 53, pushes voussoir 55 thus.In addition, the pressing force adjustment unit of present embodiment is made of the voussoir position adjustment unit 56 of the upward movement stop position of setting voussoir 55, but be not limited in this, also can be such structure: the pressing force adjustment unit for example be set up in parallel with coil spring 52 as elastomeric element, so that adjust the application force of coil spring 52 itself, according to the load carrying ability that measures by meausring apparatus 5, adjust the application force of coil spring 52 then.But, in this case,, do not need to carry out complicated control though do not need the deceleration/decel detecting device, need the structure of the application force of adjustment coil spring 52 itself, thereby device can maximize.
Fig. 7 is the figure that expression is used for implementing the elevator emergency stop device of embodiments of the present invention 2.With respect to embodiment 1, present embodiment changes the voussoir position adjustment unit 56 that is made of stop part 56a that uses rack-and-pinion mechanism and driving body 56b.In Fig. 7, in the voussoir position adjustment unit 57 of the emergency braking device 12a of present embodiment, be provided with: stop part 57a, it to be can sliding along the mode that frame parts 51 moves up and down, and with the upper end butt of voussoir 55; With actuator 57b, it drives this stop part 57a.Stop part 57a constitutes shaft-like, and is carved with screw thread.And, in voussoir position adjustment unit 57, also be provided with: nut 58, it screws on stop part 57a; Be with 59, its coiling is installed on this nut 58; And belt wheel 60, it rotates by actuator 57b, and reels to be equipped with on this belt wheel 60 and be with 59.In addition, structural element and other structural element identical with embodiment 1 label are identical with embodiment 1.
Below action is described.By actuator 57b belt wheel 60 is rotated, thus, be with 59 to be driven, nut 58 rotates in linkage.Then, by the rotation of nut 58, under threaded function, stop part 57a moves up and down.Carry out the adjustment of the upper-lower position of stop part 57a with embodiment 1, so that form the pressing force with the cooresponding voussoir of load carrying ability that measures by meausring apparatus 5 the samely.
According to such structure, also can reach the effect identical with embodiment 1.In addition, present embodiment passes through to adjust the upper-lower position of stop part 57a, and makes upper end and this stop part 57a butt of voussoir 55, comes to set according to load carrying ability the upward movement stop position of voussoir 55, but is not limited in this.For example, also can be provided with and make the dip plane 55a of voussoir 55 and the mechanism of the interval variation between the brake surface 55b, and adjust this interval in the inside of voussoir 55 according to load carrying ability, thus the upward movement stop position of setting voussoir 55.But, in the case, need hold the dip plane 55a that makes voussoir 55 and the mechanism of the interval variation between the brake surface 55b in the inside of voussoir 55, thereby elevator emergency stop device is maximized.
Fig. 8, Fig. 9, Figure 10 represent to be used for implementing the elevator emergency stop device of embodiments of the present invention 3.Fig. 8 is the figure of main portion of the elevator emergency stop device 12b of expression present embodiment.In Fig. 8, with respect to embodiment 1, present embodiment is provided with: fastening body 70, its fastening stop part 56a; And fastening body action mechanism 71, it is used to make fastening body 70 action, and the label identical with embodiment 1 represented cooresponding part.Fastening body 70 forms roughly L word shape, and the one end pivoting is installed on the S. A. 70a, and its other end has terminal part 70b, and this terminal part 70b forms the tooth engagement with driving body 56b.The engagement of the tooth by terminal part 70b and driving body 56b comes fastening driving body 56b, thereby makes stop part 56a by fastening.And fastening body 70 has recovery unit, and this recovery unit makes terminal part 70b recover to the direction of leaving driving body 56b, that is, the direction of the arrow B in figure is recovered.The part that this recovery unit for example constitutes at S. A. 70a is provided with torsion spring, and the restoring force by torsion spring is come to the direction recovery of arrow B etc., as long as can recover, recovery unit can be an any structure.In addition, above-mentioned stop part 56a, driving body 56b, fastening body 70 are set to a pair of about guide rail 11 as shown in Figure 8.And, the both sides that the emergency braking device 12b that is made of them and Fig. 1 similarly are installed in lifting body 1.
Next, the structure to fastening body action mechanism 71 describes.Fig. 9 is the overall diagram of the observed expression fastening of the arrow C direction body action mechanism 71 from Fig. 8.In Fig. 8 and Fig. 9, fastening body action mechanism 71 is provided with at least two groups of metal filaments 72a.On the fastening body 70 about the end of groups of metal filaments 72a is pivotally mounted in respectively, the other end is wound on the winding pulley 73a, and this winding pulley 73a is mounted to the rotating shaft coaxle with gate driver 22.And groups of metal filaments 72a is erected on the first wheel flutter 74a and the second wheel flutter 75a that is installed on car underframe 3a.In addition, the structure same as described above of fastening body action mechanism 71 is arranged on the two sides of car 2 as shown in Figure 9.Promptly, fastening body action mechanism 71 is provided with at least two one metal wire group 72b, on the fastening body 70 about the end of groups of metal filaments 72b is pivotally mounted in respectively, the other end is wound on the winding pulley 73b, and above-mentioned winding pulley 73b is mounted to the rotating shaft coaxle with wheel flutter 24.And groups of metal filaments 72b is erected on the 3rd wheel flutter 74b that is installed on car underframe 3a and not shown the 4th wheel flutter.In addition, though the 4th wheel flutter does not illustrate, it is equivalent to the second wheel flutter 75a.
Below, use Fig. 8, Fig. 9, Figure 10 that action is described.Set the action of upward movement stop position of voussoirs 55 and the braking maneuver of emergency braking device 12b by voussoir position adjustment unit 56, identical with embodiment 1.Embodiment 1 detects the switching of door 19a, the 19b of car 2 by door on-off switch 26, as door 19a, when 19b opens, voussoir position adjustment unit 56 is failure to actuate the drg of driving body 56b and is made motor action, adjusting the upper-lower position of stop part 56a, thereby set for the pressing force of the voussoir 55 of glancing impact corresponding with load carrying ability.As door 19a, when 19b closes, voussoir position adjustment unit 56 is failure to actuate the electrical motor of driving body 56b and is made drg action, thereby the upper-lower position that carries out adjusted stop part 56a according to load carrying ability is fixed.
Relative therewith, in the present embodiment, as door 19a, when 19b closes, the drg by driving body 56b fixes stop part 56a, and fixes the upper-lower position of stop part 56a by fastening body 70 and fastening body action mechanism 71.As shown in Figure 9, as door 19a, when 19b opens, as mentioned above, voussoir position adjustment unit 56 is adjusted the upper-lower position of stop part 56a according to load carrying ability.At this moment, fastening body action mechanism 71 recovery units by fastening body 70 make groups of metal filaments 72a and groups of metal filaments 72b remain on slack-free state, and shown in the dotted line among Fig. 8, terminal part 70b remains on the state that separates with the miniature gears of driving body 56b.
Then, as shown in figure 10, as door 19a, when 19b closes, as mentioned above, voussoir position adjustment unit 56 makes the drg action of driving body 56b, the rotation of the miniature gears of driving body 56b is fixed on the desired location, thus the upper-lower position of fixed stop 56a.At this moment, the rotation of the winding pulley 73a of fastening body action mechanism 71 and 73b and gate driver 22 drives Wound wire group 72a and groups of metal filaments 72b in linkage.Thus, the restoring force that fastening body 70 overcomes recovery unit is rotated, and makes the pinion of terminal part 70b and driving body 56b.Then, door 19a, 19b close, simultaneously, and the terminal part 70b of fastening body 70 and the pinion of driving body 56b, so that the rotation of the miniature gears of fixed drive body 56b, thereby fastening body 70 is fixed the upper-lower position of stop part 56a.As door 19a, when 19b opens, fastening body 70 and fastening body action mechanism 71 are by moving with above-mentioned opposite order.
In addition, fastening body 70 fixes the upper-lower position of stop part 56a by the pinion with driving body 56b, but is not limited in this, and fastening body 70 is directly meshed with the tooth that is formed on the stop part 56a.In addition, also can form profile of tooth on the nut 58 of the voussoir position adjustment unit 57 of embodiment 2 or belt wheel 60, fix stop part 56a by making fastening body 70 and its engagement, as long as can the fastening stop part, then can be any structure.In addition, with the drg of driving body 56b fixed stop 56a in linkage, but also can only fix stop part 56a by fastening body 70.
As previously discussed, present embodiment is owing to have the fastening body 70 of fastening stop part 56a, with with car 2 the door 19a, 19b makes the fastening body action mechanism 71 of fastening body 70 actions in linkage, therefore, by passing in and out car 2 the passenger and making a 19a, after 19b closes, the adjusted upper-lower position of fastening stop part 56a, during lifting body 1 lifting, stop part 56a just can keep adjusted upper-lower position reliably, thereby can under the state that keeps reliably with the cooresponding braking force of load carrying ability, carry out braking maneuver, can access a kind of elevator emergency stop device of high reliability.In addition, owing to also have drg as the fixed cell of fixed stop 56a, therefore, by using fastening body 70 fastening stop part 56a, and with drg fixed stop 56a, can under the state that keeps more reliably with the cooresponding braking force of load carrying ability, carry out braking maneuver, thereby can obtain the higher elevator emergency stop device of reliability.
Figure 11 is the figure that expression is used for implementing the elevator emergency stop device of embodiments of the present invention 4.Figure 12 is the figure of action of the elevator emergency stop device of expression present embodiment.With respect to embodiment 1, present embodiment changes the voussoir position adjustment unit.In Figure 11, voussoir position adjustment unit 80 comprises: a pair of stop part 80a, and it has play ground to run through frame parts 51; Stop part link 80b, its connection and fixing this a pair of stop part 80a; First connecting rod 81a, the one side is pivotally mounted on the either party among a pair of stop part 80a; And second connecting rod 81b, the one side is pivotally mounted in the opposite side of first connecting rod 81a.The opposite side of second connecting rod 81b is fastened on the bottom of car 2.And first connecting rod 81a is being pivotally mounted between one side and the opposite side on the support unit 82, and support unit 82 is fastened on the frame parts 51.Constitute connecting rod mechanism 83 by first connecting rod 81a, second connecting rod 81b and support unit 82.Other label identical with embodiment 1 is represented cooresponding part.
Below action is described.In embodiment 1, measure the load carrying ability of car 2 by meausring apparatus 5, the upper-lower position of electric in view of the above then adjustment stop part 56a, thereby set the upward movement stop position of voussoir 55, but in the present embodiment, under the situation of not using meausring apparatus 5,, mechanically adjust the upper-lower position of stop part 80a, thereby set the upward movement stop position of voussoir 55 by connecting rod mechanism 83 according to the load carrying ability of car 2.Figure 11 represents the situation that load carrying ability is less, and in this case, the deflection of elastic body 4 is very little, and the lower surface of car 2 is positioned at the top with respect to car underframe 3a, and the second connecting rod 81b that is fastened on car 2 lower surfaces also is positioned at the top.Opposite side is pivotally mounted in first connecting rod 81a on the second connecting rod 81b that to become the one side be the state that the center has rotated downwards with the pivotal mounting portion of support unit 82, and the stop part 80a that is pivotally mounted in the side of first connecting rod 81a also becomes the state that has moved downwards.
Then, as shown in figure 12, under the situation that load carrying ability has increased, the deflection of elastic body 4 also becomes greatly, and along with car 2 moves downwards, second connecting rod 81b also moves downwards.It is the state that the center has rotated upward with the pivotal mounting portion of support unit 82 that first connecting rod 81a becomes the one side, and the stop part 80a that is pivotally mounted in the side of first connecting rod 81a also becomes the state that has been moved upward.Like this, according to the load carrying ability of car 2, by connecting rod mechanism 83, moving up and down of the car 2 that is caused by the distortion of elastic body 4 is adjusted to stop part 80a and the cooresponding upper-lower position of load carrying ability.At glancing impact, set then the samely, make the upper end and the stop part 80a butt that upper-lower position has been carried out adjustment according to load carrying ability of voussoir 55, so that formation is braking force with the cooresponding pressing force of load carrying ability with embodiment 1.
In addition, present embodiment also can make the end face of stop part 80a form profile of tooth, and constitute fastening body 70 and fastening body action mechanism 71 with embodiment 3 the samely, come fastening upper-lower position to be carried out the stop part 80a that adjusts by fastening body 70 according to load carrying ability.
As mentioned above, present embodiment has elastic body 4, this elastic body 4 with car 2 elastic supports on car underframe 3a, the passenger passes in and out car 2, according to its load carrying ability, elastic body 4 distortion, corresponding to moving up and down that the distortion by this elastic body 4 of car 2 causes, by connecting rod mechanism 83 with stop part 80a be set in the cooresponding upper-lower position of load carrying ability on, can obtain a kind of like this elevator emergency stop device thus: needn't use the equipment that needs electric power, just can mechanically set the pressing force of voussoir 55 according to load carrying ability, needn't carry out electrical control, can relax the impact of glancing impact by extremely simple structure, neither can make the passenger produce sticky feeling, also can not damage lifting body 1 and counterweight 6.
In addition, carry out fastening by the stop part 80a that has adjusted upper-lower position according to load carrying ability with 70 pairs of fastening bodies, during lifting body 1 lifting, stop part 80a just can remain on the adjusted upper-lower position reliably, thereby can under the state that keeps reliably with the cooresponding braking force of load carrying ability, carry out braking maneuver, thereby can obtain the elevator emergency stop device of high reliability.
Figure 13 is the figure that expression is used for implementing the elevator emergency stop device of embodiments of the present invention 5.Whether present embodiment suspends the pressing force that lifting body 1 is set voussoir 55 in midair according to main rope 7.In Figure 13, have: a pair of stop part 90a, it has play ground to run through frame parts 51; Stop part link 90b, its connection and fixing this a pair of stop part 90a; First connecting rod 91, one side are pivotally mounted on the either party among a pair of stop part 90a; And link 92, the one side is pivotally mounted in the opposite side of first connecting rod 91.The opposite side of link 92 is pivotally mounted on the fag end spring 7a.And first connecting rod 91 is being pivotally mounted between a side and the opposite side on the support unit 93, and support unit 93 is fastened on the frame parts 51.Represent connecting rod mechanism 94 with first connecting rod 91, link 92 and support unit 93, constitute voussoir position adjustment unit 90 by stop part 90a, link 90b and connecting rod mechanism 94.Other elevator single-piece structure is identical with embodiment 1, and the label identical with embodiment 1 represented cooresponding part.
Then action is described.Figure 13 represents the state of main rope 7 normal suspention lifting bodies 1.Figure 14 represents to wait the state that does not suspend lifting body 1 in midair because of main rope 7 fractures.At first, as shown in figure 13, when main rope 7 normally suspends lifting body 1 in midair, fag end spring 7a becomes compressed state because of the load of suspention, thus, it is the state that the center has rotated upward that link 92 makes the opposite side of first connecting rod 91 become pivotal mounting portion with support unit 93, and to make a side of first connecting rod 91 become pivotal mounting portion with support unit 93 be the state that the center has rotated downwards.In addition, pivotal mounting also becomes the state that has moved downwards in the stop part 90a of a side of first connecting rod 91.Thus, the upward movement stop position of voussoir 55 becomes the state that is set to by the below, and glancing impact, the pressing force of voussoir 55 are that braking force is set lessly.
On the other hand, as shown in figure 14, when main rope 7 does not suspend lifting body 1 in midair, the load that fag end spring 7a is suspended in midair is released, become the state of elongation by its elastic force fag end spring 7a, thereby it is the state that the center has rotated downwards that link 92 makes the opposite side of first connecting rod 91 become pivotal mounting portion with support unit 93, and to make a side of first connecting rod 91 become pivotal mounting portion with support unit 93 be the state that the center has rotated upward.In addition, pivotal mounting also becomes the state that has been moved upward in the stop part 90a of a side of first connecting rod 91.Thus, the upward movement stop position of voussoir 55 becomes the state that is set to by the top, and glancing impact, the pressing force of voussoir 55 are that braking force is set greatlyyer.Like this, present embodiment has the pressing force adjustment unit, this pressing force adjustment unit comprises the voussoir position adjustment unit 90 with connecting rod mechanism 94, when main rope 7 suspends lifting bodies 1 in midair, this pressing force adjustment unit is set braking force less, otherwise when main rope 7 did not suspend lifting body 1 in midair, this pressing force adjustment unit was set braking force bigger.
Because present embodiment has aforesaid structure, therefore, can whether suspend lifting body 1 in midair according to main rope 7, carry out braking maneuver with desirable deceleration/decel, under the state of main rope 7 suspention lifting bodies 1, when the fault owing to control convenience makes the descending speed hypervelocity, when perhaps making lifting body 1 free fall and descending speed hypervelocity etc. owing to main rope 7 fractures, hypervelocity for the lifting body under all situations 1 descends, the deceleration/decel of glancing impact is increased, can make to impact and relax, thereby can obtain a kind ofly neither can make the passenger produce sticky feeling, can not damage the elevator emergency stop device of lifting body 1 and counterweight 6 again.
Figure 15 is the figure that expression is used to implement the elevator emergency stop device of embodiments of the present invention 6.With respect to embodiment 1, present embodiment has increased according to main rope 7 whether suspend the function that lifting body 1 is set the pressing force of voussoir 55 in midair.In Figure 15, present embodiment has switch 100, thereby fag end spring 7a moves switch 100 in when elongation with switch 100 butts, and the integral structure of other elevator is identical with embodiment 1, and the label identical with embodiment 1 represented cooresponding part.
Below action is described.Figure 15 represents the state of main rope 7 normal suspention lifting bodies 1, and Figure 16 represents to wait the state that does not suspend lifting body 1 in midair because of main rope 7 fractures.At first, as shown in figure 15, when main rope 7 normally suspended lifting body 1 in midair, fag end spring 7a became compressed state because of the load of suspention, and switch 100 is in the state that does not move.At this moment, the passenger passes in and out car 2, and is the same with embodiment 1, adjusts the upper-lower position of stop part 56a according to its load carrying ability, and sets the upward movement stop position of voussoir, thereby setting is a braking force with the cooresponding pressing force of load carrying ability.In addition, in this case, counterweight 6 also is suspended, thereby the power Fb that makes progress of the quality that is equivalent to counterweight 6 is arranged by main rope 7 effects on the lifting body 1, therefore, deducts this power Fb and sets pressing force.That is, set pressing force, make braking force Fc be by the upward movement stop position of setting voussoir:
Fc={ (W+Wc)+(W+Wc) α c}g-Fb formula 6
Herein, W is the quality of the lifting body 1 of zero load, and Wc is a load carrying ability, and α c is the desirable mean deceleration of glancing impact, for example is 0.6G.
On the other hand, as shown in figure 16, when main rope 7 does not suspend lifting body 1 in midair, the load that fag end spring 7a is suspended in midair is released, and becomes the state of elongation by its elastic force fag end spring 7a, thus, switch 100 and fag end spring 7a butt and action do not suspend in midair thereby detect main rope 7.In addition, owing to do not have to act on the power Fb that makes progress of the quality that is equivalent to counterweight 6, therefore, remove this power Fb, according to load carrying ability, adjust the upper-lower position of stop part 56a, thereby set the upward movement stop position of voussoir 55, thereby setting is a braking force with the cooresponding pressing force of load carrying ability.That is, set pressing force by the upward movement stop position of setting voussoir, and make braking force Fc be:
Fc={ (W+Wc)+(W+Wc) α c}g formula 7
Like this, present embodiment has the pressing force adjustment unit, this pressing force adjustment unit has switch 100, this switch 100 is used to detect main rope 7 and whether suspends lifting body 1 in midair, whether described pressing force adjustment unit suspends in midair according to main rope 7 and load carrying ability is set the upward movement stop position of voussoir 55, thereby sets pressing force.In addition, also can only whether suspend in midair, set the upward movement stop position of voussoir 55, to set pressing force according to main rope 7.In addition, present embodiment is made of the voussoir position adjustment unit 56 of having used rack-and-pinion mechanism, but also can be by constituting as voussoir position adjustment unit 57 enforcement mode 2, that have the stop part 57a that has scribed screw thread.
Because present embodiment has aforesaid structure, therefore, can whether suspend lifting body 1 in midair according to main rope 7, carry out braking maneuver with desirable deceleration/decel, under the state of main rope 7 suspention lifting bodies 1, when the fault owing to control convenience makes the descending speed hypervelocity, when perhaps making lifting body 1 free fall and descending speed hypervelocity etc. because of main rope 7 fractures, hypervelocity for the lifting body under all situations 1 descends, the deceleration/decel of glancing impact is increased, can relax the impact of glancing impact.In addition, load-carrying situation according to lifting body 1 also can be carried out braking maneuver with desirable deceleration/decel, hypervelocity for the lifting body under all situations 1 descends and the load-carrying situation, can both relax the impact of glancing impact, thereby can obtain a kind ofly neither can make the passenger produce sticky feeling, also can not damage the elevator emergency stop device of lifting body 1 and counterweight 6.
As described above, elevator emergency stop device of the present invention carries out glancing impact at the lifting body that hypervelocity is descended, and can relax the impact of glancing impact, neither can make the passenger produce sticky feeling, can not damage lifting body or counterweight yet, be fit to very much to be applied to the device that lifting body is stopped.
Claims (11)
1. an elevator emergency stop device is characterized in that, described elevator emergency stop device comprises:
Lifting body, it is along lifting rail, and has and take advantage of the car that carries the passenger and the support body of this car of supporting;
Voussoir, it is arranged at this lifting body, when urgent this voussoir along described guide rail with respect to described lifting body upward movement;
Pressing body, its use elastomeric element with this voussoir by being pressed on the described guide rail; And
The pressing force adjustment unit, when the load carrying ability of the described lifting body that changes when the turnover because of the passenger increases, this pressing force adjustment unit is set the pressing force of described voussoir less, when the load carrying ability of described lifting body reduced, this pressing force adjustment unit was set the pressing force of described voussoir bigger.
2. an elevator emergency stop device is characterized in that, described elevator emergency stop device comprises:
Lifting body, it is by main rope hanging, and along lifting rail, and has and take advantage of the car that carries the passenger and the support body of this car of supporting;
Voussoir, it is arranged at this lifting body, when urgent this voussoir along described guide rail with respect to described lifting body upward movement;
Pressing body, its use elastomeric element with this voussoir by being pressed on the described guide rail; And
The pressing force adjustment unit, when by the described lifting body of described main rope hanging, this pressing force adjustment unit is set the pressing force of described voussoir less, and when described lifting body was not suspended, this pressing force adjustment unit was set the pressing force of described voussoir bigger.
3. an elevator emergency stop device is characterized in that, described elevator emergency stop device comprises:
Lifting body, it is by main rope hanging, and along lifting rail, and has and take advantage of the car that carries the passenger and the support body of this car of supporting;
Voussoir, it is arranged at this lifting body, when urgent this voussoir along described guide rail with respect to described lifting body upward movement;
Pressing body, its use elastomeric element with this voussoir by being pressed on the described guide rail; And
The pressing force adjustment unit, whether the load carrying ability of the lifting body that it changes according to the turnover because of the passenger and described lifting body set the pressing force of described voussoir by described main rope hanging.
4. as each the described elevator emergency stop device in the claim 1 to 3, it is characterized in that,
Described pressing force adjustment unit comprises the voussoir position adjustment unit, described voussoir position adjustment unit is used to set the upward movement stop position of described voussoir, and described pressing force adjustment unit is set the pressing force of described voussoir by the upward movement stop position of described voussoir.
5. elevator emergency stop device as claimed in claim 4 is characterized in that,
Described voussoir position adjustment unit is set the upward movement stop position of this voussoir by the upper-lower position of adjustment with the stop part of the top butt of described voussoir.
6. elevator emergency stop device as claimed in claim 5 is characterized in that,
Be provided with the stop part fixed cell in described elevator emergency stop device, this stop part fixed cell is used for fixing the adjusted upper-lower position of described stop part.
7. elevator emergency stop device as claimed in claim 6 is characterized in that,
Described stop part fixed cell fixes described stop part when the door of described car is closed.
8. as each the described elevator emergency stop device in the claim 5 to 7, it is characterized in that described elevator emergency stop device comprises:
The fastening body, it is used for the adjusted upper-lower position of the described stop part of fastening;
Fastening body action mechanism, the door of itself and described car makes described fastening body action in linkage.
9. elevator emergency stop device as claimed in claim 4 is characterized in that,
Described lifting body has elastic body, and this elastic body is used for described car elastic support at described support body,
According to pass in and out the load carrying ability that described car changes because of the passenger, elastic body deforms, and described voussoir position adjustment unit is set the upward movement stop position of described voussoir according to the amount of moving up and down of the described car that is caused by this elastomeric distortion.
10. elevator emergency stop device as claimed in claim 9 is characterized in that,
Measure the amount of moving up and down of the described car that causes by described elastomeric distortion by meausring apparatus,
Adjust the upper-lower position of described stop part according to the amount of recording of this meausring apparatus.
11. elevator emergency stop device as claimed in claim 9 is characterized in that,
According to moving up and down of the described car that causes by described elastomeric distortion, adjust the upper-lower position of described stop part by connecting rod mechanism.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/018720 WO2006064555A1 (en) | 2004-12-15 | 2004-12-15 | Elevator emergency stop device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010274151A Division CN101927929B (en) | 2004-12-15 | 2004-12-15 | Emergency stopping device of elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960931A true CN1960931A (en) | 2007-05-09 |
| CN1960931B CN1960931B (en) | 2011-04-20 |
Family
ID=36587620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800432175A Expired - Fee Related CN1960931B (en) | 2004-12-15 | 2004-12-15 | Elevator emergency stop device |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP1826168B1 (en) |
| JP (1) | JP4710834B2 (en) |
| CN (1) | CN1960931B (en) |
| WO (1) | WO2006064555A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311096B (en) * | 2007-05-23 | 2011-03-16 | 株式会社日立制作所 | Elevator emergency brake gear |
| CN103201206A (en) * | 2010-10-20 | 2013-07-10 | 三菱电机株式会社 | Emergency stop device for elevator |
| CN103687797A (en) * | 2011-07-29 | 2014-03-26 | 奥的斯电梯公司 | Adjustable safety brake |
| CN104507842A (en) * | 2012-08-02 | 2015-04-08 | 三菱电机株式会社 | Emergency stop device for elevator |
| CN104495563A (en) * | 2014-12-31 | 2015-04-08 | 允成机电科技(上海)有限公司 | Flexible safety gear linkage mechanism for home elevator |
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| JPS56155178A (en) | 1980-04-28 | 1981-12-01 | Mitsubishi Electric Corp | Elevator device |
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| JPH0326673A (en) * | 1989-06-26 | 1991-02-05 | Mitsubishi Electric Corp | Elevator control device |
| JPH0459579A (en) * | 1990-06-26 | 1992-02-26 | Mitsubishi Electric Corp | Brake device of ropeless elevator |
| JPH0543150A (en) * | 1991-08-20 | 1993-02-23 | Hitachi Ltd | Elevator |
| JP2001002342A (en) | 1999-06-21 | 2001-01-09 | Toshiba Elevator Co Ltd | Emergency stop device for elevator |
| CA2408024C (en) * | 2000-05-25 | 2010-01-19 | Inventio Ag | Braking device for a lift |
| JP4566337B2 (en) | 2000-06-02 | 2010-10-20 | 三菱電機株式会社 | Elevator emergency stop device |
| AU2001263713A1 (en) * | 2000-06-22 | 2002-01-02 | Inventio A.G. | Brake arresting device with adaptable brake force for a lift |
| TW513374B (en) * | 2000-12-08 | 2002-12-11 | Inventio Ag | Safety brake with retardation-dependent braking force |
| JP2004224492A (en) * | 2003-01-22 | 2004-08-12 | Fujitec Co Ltd | Elevator device |
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- 2004-12-15 WO PCT/JP2004/018720 patent/WO2006064555A1/en active Application Filing
- 2004-12-15 EP EP04807079.1A patent/EP1826168B1/en not_active Expired - Fee Related
- 2004-12-15 JP JP2006548609A patent/JP4710834B2/en active Active
- 2004-12-15 EP EP12177599.3A patent/EP2517998B1/en not_active Expired - Fee Related
- 2004-12-15 CN CN2004800432175A patent/CN1960931B/en not_active Expired - Fee Related
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| CN114616202B (en) * | 2019-10-31 | 2023-09-29 | 因温特奥股份公司 | Brake device, use thereof in an elevator installation, method and elevator installation |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2517998B1 (en) | 2014-04-02 |
| EP1826168A1 (en) | 2007-08-29 |
| CN1960931B (en) | 2011-04-20 |
| JPWO2006064555A1 (en) | 2008-06-12 |
| JP4710834B2 (en) | 2011-06-29 |
| EP1826168B1 (en) | 2013-04-17 |
| EP1826168A4 (en) | 2012-02-15 |
| EP2517998A1 (en) | 2012-10-31 |
| WO2006064555A1 (en) | 2006-06-22 |
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