CN100439226C - Elevator apparatus - Google Patents

Abstract

The present invention relates to an elevator device. In the elevator device, an outputting part electrically detects the abnormality of an elevator when the abnormality is detected out, a work signal is output. The work signal from the outputting part is input to an actuating part. A mechanical detecting unit mechanically detects the abnormality of the elevator, and operating force is mechanically transmitted to a braking component. When the work signal is input to the actuating part, the braking component carries out braking action. In addition, even if the work signal is not input to the actuating part when the abnormality is detected through the mechanical detecting unit, through the operating force from the mechanical detecting unit, the braking component carries out the braking action.

Description

Lift appliance

Technical field

The present invention relates to a kind ofly car is suspended in lift appliance in the hoistway by main rope.

Background technology

In existing lift appliance, use velocity limiter for making the emergency braking device action that is installed on the car.Open the Japanese Patent spy and to disclose a kind of velocity limiter that detects unusually and a kind of emergency braking device that stops car to fall on by the car guide rail that is pressed in the guiding car to the car rising or falling speed in the 2001-80840 communique to wedge.On the rope sheave of velocity limiter, be wound with and the synchronization-moving overspeed governor of car lifting.Safe connecting rod is installed on car, and this safe connecting rod is connected with overspeed governor, and with the interlock of the wedge of emergency braking device.In velocity limiter, when detecting car speed when unusual, the constraint overspeed governor.By the constraint of overspeed governor, make safe connecting rod action, with wedge by being pressed on the car guide rail.Dependence is pushed the braking force that causes by this and is stoped car to fall.

Yet, in this lift appliance, since from detect by velocity limiter car speed unusually to wedge produce braking force during, be inserted with the constraint of overspeed governor and the action of safe connecting rod, thereby for example because the action delay of the flexible and safe connecting rod of delay, the overspeed governor of overspeed governor constrained action etc. in the velocity limiter needs the time to producing braking force unusually from detecting car speed.

Summary of the invention

The present invention proposes in order to address the above problem, and its purpose is to provide a kind of and can shortens from detecting unusual lift appliance to the time that produces braking force.

Lift appliance of the present invention comprises: the car of lifting in hoistway; The car guide rail of guiding car lifting; Brake component, it is installed on the car, and by coming car is braked with the car guide rail butt; Efferent, it electrically detects the unusual of elevator, and is detecting output services signal when unusual; Actuation part, it will be from the working signal of efferent as input; The mechanical detection unit, it mechanically detects the unusual of elevator, and actuating force is mechanically passed to brake component; When being input to working signal in the actuation part, brake component carries out braking maneuver, and, even without to actuation part input service signal, when detecting by the mechanical detection unit when unusual, make brake component carry out braking maneuver by actuating force from the mechanical detection unit.

Description of drawings

Fig. 1 is the constructional drawing that schematically shows according to the lift appliance of embodiment of the present invention 1;

Fig. 2 is the front view of the emergency braking device in the presentation graphs 1;

Fig. 3 is the front view of the state in emergency braking device when work in the presentation graphs 2;

Fig. 4 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 2;

Fig. 5 is the front view of the emergency braking device in the presentation graphs 4;

The front view of the emergency braking device when Fig. 6 is work in the presentation graphs 5;

Fig. 7 is the front view of the drive division in the presentation graphs 6;

Fig. 8 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 3;

Fig. 9 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 4;

Figure 10 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 5;

Figure 11 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 6;

Figure 12 is another routine constructional drawing of the lift appliance among expression Figure 11;

Figure 13 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 7;

Figure 14 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 8;

Figure 15 is another routine front view of the drive division in the presentation graphs 7;

Figure 16 is the plane cross sectional drawing of the emergency braking device of expression embodiment of the present invention 9;

Figure 17 is the partial cross sectional side elevation view of the emergency braking device of expression embodiment of the present invention 10;

Figure 18 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 11;

Figure 19 is the diagram of curves of the unusual judgment standard of car speed in the storage part of representing to be stored among Figure 18;

Figure 20 is the diagram of curves of the unusual judgment standard of car acceleration/accel in the storage part of representing to be stored among Figure 18;

Figure 21 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 12;

Figure 22 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 13;

Figure 23 is the rope fastening device of expression among Figure 22 and the constructional drawing of each rope sensor;

Figure 24 is the constructional drawing of the state that breaks of the 1 piece main rope of expression among Figure 23;

Figure 25 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 14;

Figure 26 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 15;

Figure 27 be expression among Figure 26 car and the block diagram of door sensor;

Figure 28 is the block diagram of the open mode of the car gangway among expression Figure 27;

Figure 29 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 16;

Figure 30 is the constructional drawing on the hoistway top among expression Figure 29;

Figure 31 is the constructional drawing of the lift appliance of expression embodiment of the present invention 17;

Figure 32 is the lateral plan that amplifies the car among expression Figure 31;

Figure 33 is the front view of the emergency braking device among expression Figure 32;

Figure 34 is the front view of operating state of the actuation part of the emergency braking device of expression among Figure 33;

Figure 35 is the front view of operating state of mechanical detection unit of the emergency braking device of expression Figure 33;

Figure 36 is the lateral plan of car of the lift appliance of expression embodiment of the present invention 18;

Figure 37 is the front view of the car hanging wheel among expression Figure 36;

Figure 38 is the constructional drawing of the lift appliance of expression embodiment of the present invention 19;

Figure 39 is the constructional drawing of the lift appliance of expression embodiment of the present invention 20.

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 that schematically shows the lift appliance of embodiment of the present invention 1.In the drawings, in hoistway 1, be provided with a pair of car guide rail 2.Car 3 lifting in hoistway 1 by car guide rail 2 guiding.Dispose the towing machine (not shown) that makes car 3 and counterweight (not shown) lifting in the upper end of hoistway 1.On the driving rope sheave of towing machine, be wound with main rope 4.Car 3 and counterweight are suspended in the hoistway 1 by main rope 4.On car 3, with each car guide rail 2 opposed a pair of emergency braking device 5 that are equipped with as brake unit.Each emergency braking device 5 is configured in the bottom of car 3.Car 3 is braked by the action of each emergency braking device 5.

And, disposing velocity limiter 6 in the upper end of hoistway 1, this velocity limiter 6 is car speed detecting units that the rising or falling speed to car 3 detects.Velocity limiter 6 has: velocity limiter main body 7 and can be with respect to the governor sheave 8 of velocity limiter main body 7 rotation.Dispose rotatable tension wheel 9 in the bottom of hoistway 1.Between governor sheave 8 and tension wheel 9, be wound with and car 3 bonded assembly overspeed governors 10.Overspeed governor 10 with the connecting portion of car 3 with car 3 towards upper and lower to moving back and forth.Like this, governor sheave 8 and tension wheel 9 are to rotate with the cooresponding speed of the rising or falling speed of car 3.

When the rising or falling speed of car 3 reaches the predefined the 1st when crossing speed, velocity limiter 6 makes the brake equipment action of towing machine.And, in velocity limiter 6, be provided with switch portion 11 as efferent, when reaching than the 1st, the descending speed of car 3 crosses the fast the 2nd when crossing speed (setting speed), and this switch portion 11 outputs to emergency braking device 5 to working signal.Switch portion 11 has contact portion 16, and this contact portion 16 mechanically opens and closes by overrunning bar, and this pole-footing of overrunning moves according to the centnifugal force of the governor sheave 8 of rotation.Contact portion 16 is electrically connected with battery 12 and control panel 13 by feed cable 14 and connecting cable 15 respectively, even this battery 12 is the uninterrupted power supply(ups)s that also can power when having a power failure, and the running of these control panel 13 control elevators.

Between car 3 and control panel 13, be connected with control cable (removal cable).In control cable, except many electric wireline and signal wire (SW), also contain promptly the stopping usefulness that is connected electrically between control panel 13 and each emergency braking device 5 and connect up 17.From the electric power of battery 12 closure, by the power supply circuit in feed cable 14, switch portion 11, connecting cable 15, the control panel 13 and promptly stop 17 offering each emergency braking device 5 with connecting up by contact portion 16.In addition, delivery unit has: the power supply circuit in the connecting cable 15, control panel 13 and promptly stopping with wiring 17.

Fig. 2 is the front view of the emergency braking device 5 in the presentation graphs 1, the front view of the emergency braking device 5 when Fig. 3 is work in the presentation graphs 2.In the drawings, be fixed with support unit 18 in the bottom of car 3.Emergency braking device 5 is by support unit 18 supportings.And each emergency braking device 5 has: wedge 19 is car guide rail 2 contacts and a pair of brake component that separates relatively; A pair of actuation part 20 is connected with wedge 19, and wedge 19 is moved with respect to car 3; And a pair of guide part 21, be fixed on the support unit 18 Direction guide that will contact with car guide rail 2 by wedge 19 courts that actuation part 20 moves.A pair of wedge 19, a pair of actuation part 20 and a pair of guide part 21 are configured in the both sides of car guide rail 2 respectively symmetrically.

Guide part 21 has dip plane 22, and this dip plane 22 tilts with respect to car guide rail 2, and feasible interval with car guide rail 2 diminishes up.Wedge 19 22 moves along the dip plane.Actuation part 20 has: spring 23 is to the force section of wedge 19 towards the guide part 21 side application of forces of top; And electromagnet 24, the application of force that relies on the electromagnetic force that is caused by energising to overcome spring 23 moves wedge 19 and guide part 21 discretely towards the below.

Spring 23 is connected between support unit 18 and the wedge 19.Electromagnet 24 is fixed on the support unit 18.Promptly stop to be connected with electromagnet 24 with wiring 17.On wedge 19, be fixed with and electromagnet 24 opposed permanent magnets 25.Carry out energising (with reference to Fig. 1) from battery 12 by the closure of contact portion 16 (with reference to Fig. 1) to electromagnet 24.Cut off energising by break portion 16 (with reference to Fig. 1), make emergency braking device 5 actions to electromagnet 24.That is, thus a pair of wedge 19 relies on the elastic restoring force of springs 23 and moves by being pressed on the car guide rail 2 towards the top with respect to car 3.

Below, action is described.When normal operation, contact portion 16 closures.Like this, electric power offers electromagnet 24 from battery 12.Wedge 19 is remained on the electromagnet 24 by the electromagnetic attracting force that is caused by energising, thereby separates (Fig. 2) with car guide rail 2.

When for example the speed of car 3 being risen reach the 1st to cross speed owing to the fracture of main rope 4 etc., the brake equipment action of towing machine.When after the action of the brake equipment of towing machine, the speed of car 3 further rises and reaches the 2nd when crossing speed, and contact portion 16 disconnects.Like this, be cut off to the energising of the electromagnet 24 of each emergency braking device 5, wedge 19 relies on the application of force of springs 23 and moves towards the top with respect to car 3.At this moment, wedge 19 is with when the dip plane 22 of guide part 21 contacts, and 22 move along the dip plane.Move by this, wedge 19 contacts with car guide rail 2 and by being pressed on the car guide rail 2.Wedge 19 by with the contacting of car guide rail 2, further move and engaging-in between car guide rail 2 and guide part 21 towards the top.Like this, between car guide rail 2 and wedge 19, produce big friction force, thereby car 3 is braked (Fig. 3).

When the glancing impact of removing car 3, under the state of electromagnet 24 energisings, car 3 is risen in the closure of passing through contact portion 16.Like this, wedge 19 moves towards the below, separates with car guide rail 2.

In this lift appliance, owing to be electrically connected with battery 12 bonded assembly switch portion 11 and each emergency braking device 5, thereby can be sent to each emergency braking device 5 to velocity anomaly as electricity work signal from switch portion 11 by velocity limiter 6 detected cars 3, can in the short time after the velocity anomaly that detects car 3, make car 3 brakings.Like this, can reduce the stopping distance of car 3.And, can easily make each emergency braking device 5 synchronous initiation, car 3 is stably stopped.And,, thereby can prevent the misoperation that causes by rocking of car 3 etc. because emergency braking device 5 is according to electricity work signalizing activity.

And because emergency braking device 5 has: actuation part 20 makes guide part 21 side shiftings of wedge 19 towards the top; And guide part 21, comprise dip plane 22, the Direction guide that wedge 19 courts that this dip plane will be moved towards the top contact with car guide rail 2, thereby when car 3 descends, can increase the pressing force of 19 pairs of car guide rails 2 of wedge reliably.

And, because actuation part 20 has: spring 23, to wedge 19 towards the top application of force; And electromagnet 24, the application of force that overcomes spring 23 makes wedge 19 move towards the below, thereby can adopt simple structure that wedge 19 is moved.

Embodiment 2

Fig. 4 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 2.In the drawings, car 3 has: car main body 27 is provided with car gangway 26; And gate 28, open and close car gangway 26.Be provided with car speed sensor 31 in hoistway 1, this car speed sensor 31 is car speed detecting units that the speed to car 3 detects.Efferent 32 is installed in control panel 13, and this efferent 32 is electrically connected with car speed sensor 31.Battery 12 is connected with efferent 32 by feed cable 14.Be used for the electric power that the speed to car 3 detects and offer car speed sensor 31 from efferent 32.Speed detection signal from car speed sensor 31 is imported into efferent 32.

In the bottom of car 3 a pair of emergency braking device 33 is installed, this emergency braking device 33 is brake units that car 3 is braked.Efferent 32 and each emergency braking device 33 are by promptly stopping with wiring 17 electrical connection mutually.When the speed of car 3 is the 2nd mistake speed, output to emergency braking device 33 from efferent 32 as the working signal that starts with electric power.Emergency braking device 33 moves according to the input of working signal.

Fig. 5 is the front view of the emergency braking device 33 in the presentation graphs 4, the front view of the emergency braking device 33 when Fig. 6 is the work of presentation graphs 5.In the drawings, emergency braking device 33 has: wedge 34 is to contact and the brake component that separates with car guide rail 2; Actuation part 35 is connected with the bottom of wedge 34; And guide part 36, be configured in the top of wedge 34, and be fixed on the car 3.Wedge 34 and actuation part 35 are arranged to can be with respect to guide part 36 up-and-down movements.Wedge 34 along with respect to guide part 36 towards the moving of top, promptly towards the moving of guide part 36 sides, by guide part 36 towards the Direction guide that contacts with car guide rail 2.

Actuation part 35 has: columned contact part 37 can contact with car guide rail 2 and separate; Operating mechanism 38 makes contact part 37 towards moving with the direction of separating with car guide rail 2 contacts; And support 39, supporting contact part 37 and operating mechanism 38.Contact part 37 is lighter than wedge 34, so that can easily move by operating mechanism 38.Operating mechanism 38 has: movable part 40 can and make between contact part 37 and the disengaged position that car guide rail 2 separates at the contact position that makes 2 contacts of contact part 37 and car guide rail to move back and forth; And drive division 41, movable part 40 is moved.

In support 39 and movable part 40, be respectively arranged with supporting pilot hole 42 and movable pilot hole 43.Supporting pilot hole 42 and movable pilot hole 43 are different with respect to the angle of inclination of car guide rail 2.Contact part 37 is slidably mounted in supporting pilot hole 42 and the movable pilot hole 43.Contact part 37 slides in movable pilot hole 43 along with moving back and forth of movable part 40, and moves along the length direction of supporting pilot hole 42.Like this, contact part 37 contacts with car guide rail 2 with suitable angle and separates.When car 3 descended, when contact part 37 contacted with car guide rail 2, wedge 34 and actuation part 35 were braked, towards guide part 36 side shiftings.

Be provided with the horizontally-guided hole 47 that along continuous straight runs extends on the top of support 39.Wedge 34 is slidably mounted in the horizontally-guided hole 47.That is, wedge 34 can move back and forth in the horizontal direction with respect to support 39.

Guide part 36 has dip plane 44 and the contact surface 45 that clips car guide rail 2 configurations.Dip plane 44 tilts with respect to car guide rail 2, and feasible interval with car guide rail 2 diminishes up.Contact surface 45 can contact with car guide rail 2 and separate.Along with wedge 34 and actuation part 35 move towards the top with respect to guide part 36, wedge 34 44 moves along the dip plane.Like this, wedge 34 and contact surface 45 closely move mutually, and car guide rail 2 is clamped by wedge 34 and contact surface 45.

Fig. 7 is the front view of the drive division 41 in the presentation graphs 6.In the drawings, drive division 41 has: disk spring 46 is mounted in the force section on the movable part 40; And electromagnet 48, by the electromagnetic force that causes by energising movable part 40 is moved.

Movable part 40 is fixed on the middle body of disk spring 46.Disk spring 46 is out of shape by moving back and forth of movable part 40.The application of force direction of disk spring 46 is according to because of the mobile distortion that causes of movable part 40 upset between the contact position (solid line) of movable part 40 and disengaged position (long and two-short dash line).Movable part 40 remains on contact position and disengaged position respectively by the application of force of disk spring 46.That is, contact part 37 relies on the application of force of disk spring 46 to keep with the contact condition and the released state of car guide rail 2.

Electromagnet 48 has: the 1st electromagnetism portion 49 is fixed on the movable part 40; And the 2nd electromagnetism portion 50, with the 1st electromagnetism portion 49 arranged opposite.Movable part 40 can move with respect to the 2nd electromagnetism portion 50.Promptly stop to be connected with electromagnet 48 with wiring 17.The 1st electromagnetism portion 49 and the 2nd electromagnetism portion 50 are by producing electromagnetic force, repelling mutually to electromagnet 48 input service signals.That is, by to electromagnet 48 input service signals, the 1st electromagnetism portion 49 moves towards the direction of separating with the 2nd electromagnetism portion 50 with movable part 40.

In addition, the restoring signal of efferent 32 recovery usefulness after 33 actions of output emergency braking device when recovering.By importing restoring signals to electromagnet 48, the 1st electromagnetism portion 49 and the 2nd electromagnetism portion 50 attract each other.Other structures are identical with embodiment 1.

Below, action is described.When normal operation, movable part 40 is positioned at disengaged position, and contact part 37 separates with car guide rail 2 by the application of force of disk spring 46.Under contact part 37 and state that car guide rail 2 separates, wedge 34 keeps the interval with guide part 36, separates with car guide rail 2.

When car speed sensor 31 detected speed reach the 1st mistake speed, the brake equipment action of towing machine.Afterwards, when reaching the 2nd mistake speed when the speed rising of car 3 and by car speed sensor 32 detected speed, working signal outputs to each emergency braking device 33 from efferent 32.By to electromagnet 48 input service signals, the 1st electromagnetism portion 49 and the 2nd electromagnetism portion 50 repel mutually.Rely on this electromagnetic repulsive force, movable part 40 moves towards contact position.Meanwhile, contact part 37 moves towards the direction that contacts with car guide rail 2.Before movable part 40 arrived contact position, the application of force direction of disk spring 46 was in the direction of contact position upset for maintenance movable part 40.Like this, contact part 37 contacts are also pushed car guide rail 2, and wedge 34 and actuation part 35 are braked.

Because car 3 and guide part 36 do not descend with being braked, thereby guide part 36 is towards the wedge 34 and actuation part 35 side shiftings of below.Owing to should move, wedge 34 is by 44 guiding along the dip plane, and car guide rail 2 is clamped by wedge 34 and contact surface 45.Wedge 34 by with the contacting of car guide rail 2, further move, and engaging-in between car guide rail 2 and dip plane 44 towards the top.Like this, producing big friction force between car guide rail 2 and the wedge 34 and between car guide rail 2 and contact surface 45, thereby car 3 is braked.

When recovering, restoring signal is sent to electromagnet 48 from efferent 32.Like this, the 1st electromagnetism portion 49 and the 2nd electromagnetism portion 50 attract each other, and movable part 40 moves towards disengaged position.Meanwhile, contact part 37 moves towards the direction of separating with car guide rail 2.Before movable part 40 arrives disengaged position, the application of force direction upset of disk spring 46, movable part 40 is maintained at disengaged position.Under this state, car 3 rises, and wedge 34 and pushing of 45 pairs of car guide rails 2 of contact surface are disengaged.

In this lift appliance, owing to not only obtain the effect identical with embodiment 1, and owing to for the speed that detects car 3 car speed sensor 31 is set in hoistway 1, thereby do not need to use velocity limiter and overspeed governor, can reduce lift appliance single-piece installing space.

And because actuation part 35 has: contact part 37 can contact with car guide rail 2 and separate; And operating mechanism 38, make contact part 37 towards moving with the direction of separating with car guide rail 2 contacts, thereby, light by the weight ratio wedge 34 that makes contact part 37, can reduce the propulsive effort of 38 pairs of contact parts 37 of operating mechanism, can make operating mechanism's 38 miniaturizations.And, by making contact part 37 light weights, can increase the moving velocity of contact part 37, can shorten producing the required time of braking force.

And because drive division 41 has: disk spring 46 remains on contact position and disengaged position with movable part 40; And electromagnet 48, by energising movable part 40 is moved, thereby, can movable part 40 be remained on contact position or disengaged position reliably by only when movable part 40 moves, switching on to electromagnet 48.

Embodiment 3

Fig. 8 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 3.In the drawings, be provided with in car gangway 26 and open and close a sensor 58, this opens and closes sensor 58 is that the door that the open and-shut mode to gate 28 detects opens and closes detecting unit.The efferent 59 that is installed on the control panel 13 is connected by control cable and door switching sensor 58.And car speed sensor 31 is electrically connected with efferent 59.Be imported into efferent 59 from the speed detection signal of car speed sensor 31 with from the switching detection signal that door opens and closes sensor 58.At efferent 59,, can hold the speed of car 3 and the open and-shut mode of car gangway 26 by input speed detection signal and switching detection signal.

Efferent 59 is connected with emergency braking device 33 with wiring 17 by promptly stopping.Efferent 59 is according to opening and closing the switching detection signal of sensor 58 from the speed detection signal of car speed sensor 31 and from door, under the state of opening in car gangway 26, and output services signal when car 3 liftings.Working signal is by promptly stopping to be sent to emergency braking device 33 with wiring 17.Other structures are identical with embodiment 2.

In this lift appliance, because the car speed sensor 31 that the speed of car 3 is detected and the door that the open and-shut mode of gate 28 detects is opened and closed a sensor 58 be electrically connected with efferent 59, and under the state of opening in car gangway 26, when car 3 descends, working signal outputs to emergency braking device 33 from efferent 59, thereby can prevent that car 3 from descending under 26 open modes of car gangway.

In addition, emergency braking device 33 can also be installed on the car 3 upside down.Can prevent that like this, also car 3 from rising under 26 open modes of car gangway.

Embodiment 4

Fig. 9 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 4.In the drawings, run through being inserted with fracture and detecting lead 61 in main rope 4, it is rope that the fracture to main rope 4 the detects detecting units that rupture that this fracture detects lead 61.In detecting lead 61, fracture have weak current to flow through.Main rope 4 has non-cracking according to having or not the energising of weak current to detect.The efferent 62 that is installed on the control panel 13 is electrically connected with fracture detection lead 61.When fracture detected lead 61 fractures, the rope break signal that detects the energising shutoff signal of lead 61 as fracture was imported into efferent 62.And car speed sensor 31 is electrically connected with efferent 62.

Efferent 62 is connected with emergency braking device 33 with wiring 17 by promptly stopping.Efferent 62 is according to detecting the rope break signal of lead 61 from the speed detection signal of car speed sensor 31 and from rupturing, output services signal when main rope 4 ruptures.Working signal is by promptly stopping to be sent to emergency braking device 33 with wiring 17.Other structures are identical with embodiment 2.

In this lift appliance, because the car speed sensor 31 that the speed of car 3 is detected and the fracture that the fracture of main rope 4 detects is detected lead 61 be electrically connected with efferent 62, and when main rope 4 ruptures, working signal is output to emergency braking device 33 from efferent 62, thereby, detect by the speed detection of car 3 and the fracture of main rope 4, can brake the car 3 that descends with abnormal speed more reliably.

In addition, in above-mentioned example,, use fracture to detect the method that lead 61 has or not energising to detect, the tension variation of for example main rope 4 is carried out method for measuring yet also can use to running through insertion in the main rope 4 as rope fracture method of inspection.In the case, on the rope fastening device of main rope 4, tension draftomter is set.

Embodiment 5

Figure 10 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 5.In the drawings, be provided with car position sensor 65 in hoistway 1, this car position sensor 65 is car position detecting units that the position of car 3 is detected.Car position sensor 65 and car speed sensor 31 are electrically connected with efferent 66 on being installed in control panel 13.Efferent 66 has storage part 67, and this storage part 67 stores the control figure, position, speed, the acceleration-deceleration of the car 3 when this control figure comprises normal operation and stop information such as floor.Be imported into efferent 66 from the speed detection signal of car speed sensor 31 and from the cage position signal of car position sensor 65.

Efferent 66 is connected with emergency braking device 33 with wiring 17 by promptly stopping.At efferent 66, comparing based on the speed of the car 3 of speed detection signal and cage position signal and position (measured value) and speed and position (setting value) based on the car 3 that is stored in the control figure in the storage part 67.When the deviation of measured value and setting value surpassed defined threshold, efferent 66 outputed to emergency braking device 33 to working signal.Herein, defined threshold be meant be used to car 3 is stopped by normal brake application and not with the MIN measured value of the end of hoistway 1 collision and the deviation of setting value.Other structures are identical with embodiment 2.

In this lift appliance, because when the deviation from the measured value of car speed sensor 31 and car position sensor 65 and the setting value of controlling figure surpasses defined threshold, efferent 66 output services signals, thereby can prevent the end collision of car 3 and hoistway 1.

Embodiment 6

Figure 11 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 6.In the drawings, dispose in hoistway 1: going up car 71, is the 1st car; And following car 72, be the 2nd car that is positioned at the below of car 71.The lifting in hoistway 1 of last car 71 and following car 72 by car guide rail 2 guiding.Upper end in hoistway 1 is provided with: the 1st towing machine (not shown) makes counterweight (not shown) lifting of car 71 and last car; And the 2nd towing machine (not shown), make down car 72 and the lifting of following car usefulness counterweight (not shown).On the driving rope sheave of the 1st towing machine, be wound with the 1st main rope (not shown), on the driving rope sheave of the 2nd towing machine, be wound with the 2nd main rope (not shown).By the 1st main rope hanging, following car 72 and following car use counterweight by the 2nd main rope hanging with counterweight for last car 71 and last car.

Be provided with car speed sensor 73 and following car speed sensor 74 in hoistway 1, car speed sensor 73 and following car speed sensor 74 are car speed detecting units that the speed to the speed of last car 71 and following car 72 detects this on.And, be provided with car position sensor 75 and following car position sensor 76 in hoistway 1, car position sensor 75 and following car position sensor 76 are car position detecting units that the position of the position of last car 71 and following car 72 is detected this on.

In addition, the car motion detection unit has: go up car speed sensor 73, following car speed sensor 74, go up car position sensor 75 and following car position sensor 76.

Car is installed with emergency braking device 77 in the bottom of last car 71, car is to have and the brake unit of emergency braking device 33 same structures of use in embodiment 2 with emergency braking device 77 this on.Car is installed down with emergency braking device 78 in the following bottom of car 72, this time car with emergency braking device 78 be have and last car with the brake unit of emergency braking device 77 same structures.

Efferent 79 is installed in control panel 13.Last car speed sensor 73, time car speed sensor 74, last car position sensor 75 and following car position sensor 76 are electrically connected with efferent 79.And battery 12 is connected with efferent 79 by feed cable 14.From the last car speed detection signal of last car speed sensor 73, from the following car speed detection signal of car speed sensor 74 down, be imported into efferent 79 from the last car position detection signal of last car position sensor 75 and from the following car position detection signal that descends car position sensor 76.That is, the information from the car motion detection unit is imported into efferent 79.

Efferent 79 is connected with emergency braking device 78 with following car with emergency braking device 77 with last car with wiring 17 by promptly stopping.And, efferent 79 is according to the information from the car motion detection unit, end to last car 71 or time car 72 and hoistway 1 has collisionless and last car 71 and following car 72 to have collisionless to predict, when doping collision, working signal is outputed to car emergency braking device 77 and following car emergency braking device 78.Last car moves according to the input of working signal with emergency braking device 78 with emergency braking device 77 and following car.

In addition, monitoring unit has car motion detection unit and efferent 79.The running state of last car 71 and following car 72 is monitored by monitoring unit.Other structures are identical with embodiment 2.

Below, action is described.At efferent 79, by to the information of efferent 79 input from the car motion detection unit, to last car 71 or down the end of car 72 and hoistway 1 collisionless is arranged and goes up car 71 and following car 72 has collisionless to predict.When for example the fracture prediction of going up the 1st main rope of car 71 according to suspention when efferent 79 goes out to go up car 71 and 72 collisions of following car, working signal is outputed to car with emergency braking device 77 and following car emergency braking device 78 from efferent 79.Like this, car is moved with emergency braking device 77 and following car with emergency braking device 78, last car 71 and following car 72 are braked.

In this lift appliance, because monitoring unit has: the car motion detection unit, detect car in the lifting in same hoistway 1 71 and following car 72 actual act separately; And efferent 79, there is collisionless to predict according to information to last car 71 and following car 72 from the car motion detection unit, when doping collision, working signal is outputed to car emergency braking device 77 and following car emergency braking device 78, thereby, even last car 71 and following car 72 speed separately do not reach the speed set, when doping car 71 and 72 collisions of following car, car is moved with emergency braking device 78 with emergency braking device 77 and following car, can avoid car 71 and 72 collisions of following car.

And, because the car motion detection unit has last car speed sensor 73, following car speed sensor 74, goes up car position sensor 75 and following car position sensor 76, thereby, can adopt simple structure easily to detect car 71 and following car 72 actual act separately.

In addition, in above-mentioned example, efferent 79 is installed in the control panel 13, yet also can be installed in efferent 79 respectively on car 71 and the following car 72.In the case, as shown in figure 12, last car speed sensor 73, down car speed sensor 74, go up car position sensor 75 and down car position sensor 76 and be installed in car 71 on efferent 79 and efferent 79 both sides that are installed in down on the car 72 be electrically connected respectively.

And, in above-mentioned example, efferent 79 outputs to car to working signal and uses emergency braking device 78 both sides with emergency braking device 77 and following car, yet also can working signal only be outputed to car use emergency braking device 77 and following car according to information from the car motion detection unit with one in the emergency braking device 78.In the case,, there is collisionless to predict, and last car 71 and the action separately of following car 72 had no abnormally judges last car 71 and following car 72 at efferent 79.Working signal outputs to from 79 of efferents and is installed in the emergency braking device that carries out car 71 and the following car 72 on anomalous behavior one side.

Embodiment 7

Figure 13 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 7.In the drawings, car is equipped with the following car efferent 82 as efferent with efferent 81 on following car 72 on being equipped with as efferent on the last car 71.Last car speed sensor 73, last car position sensor 75 and following car position sensor 76 are electrically connected with efferent 81 with last car.Following car speed sensor 74, time car position sensor 76 and last car position sensor 75 are electrically connected with efferent 82 with following car.

Last car promptly stops to be electrically connected with emergency braking device 77 with last car with wiring 83 by last car with efferent 81, and car promptly stops with 83 delivery units that are arranged on the car 71 that connect up on this.And, last car with efferent 81 according to from last car speed sensor 73, go up car position sensor 75 and separately information of car position sensor 76 (following be called in the present embodiment " going up car detection information ") down, there is collisionless to predict last car 71 with following car 72, when doping collision, working signal is outputed to car emergency braking device 77.And when having imported last car with detection information, the maximum speed car 71 sides operation up when last car supposes that with efferent 81 car 72 is with normal operation down has collisionless to predict last car 71 with following car 72.

Following car promptly stops to be electrically connected with emergency braking device 78 with following car with wiring 84 by following car with efferent 82, and this time car promptly stops with 84 delivery units that are arranged on down on the car 72 that connect up.And, following car with efferent 82 according to respectively from following car speed sensor 74, car position sensor 76 and the information (following be called in the present embodiment " following car detection information ") that goes up car position sensor 75 down, to car 72 and last car 71 have collisionless to predict down, when doping collision, working signal is outputed to down car emergency braking device 78.And when having imported time car with detection information, the maximum speed car 72 sides operation down when following car uses efferent 82 supposition to go up car 71 with normal operation is to car 72 and last car 71 have collisionless to predict down.

Usually, be failure to actuate with emergency braking device 78 with emergency braking device 77 and following car in order to make car, last car 71 and following car 72 are spaced from each other the control of turning round of abundant interval.Other structures are identical with embodiment 6.

Below, action is described.For example when since in the suspention fracture of the 1st main rope of car 71 make car 71 down car 72 sides fall, when 71 approaching times cars 72 of last car, last car dopes the collision of car 71 and following car 72 with efferent 81, and following car dopes the collision of car 71 and following car 72 with efferent 82.Like this, working signal outputs to car emergency braking device 77 from last car with efferent 81, and working signal outputs to down car emergency braking device 78 from following car with efferent 82.Like this, car is moved with emergency braking device 77 and following car with emergency braking device 78, last car 71 and following car 72 are braked.

In this lift appliance, owing to not only obtain the effect identical with embodiment 6, and owing to last car speed sensor 73 only is electrically connected with efferent 81 with last car, following car speed sensor 74 only is electrically connected with efferent 82 with following car, thereby, need be between last car speed sensor 73 and following car be with efferent 82 and between car speed sensor 74 and last car down are with efferent 81, electric wiring is set, can simplify the operation that is provided with of electric wiring.

Embodiment 8

Figure 14 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 8.In the drawings, inter-car distance is installed from sensor 91 on last car 71 and following car 72, this inter-car distance is that inter-car distance that the distance between last car 71 and the following car 72 is detected is from detecting unit from sensor 91.Inter-car distance has from sensor 91: laser irradiating part is installed on the car 71; And reflecting part, be installed in down on the car 72.Distance between last car 71 and the following car 72 is obtained according to the reciprocal time of the laser between laser irradiating part and the reflecting part from sensor 91 by inter-car distance.

Last car speed sensor 73, time car speed sensor 74, last car position sensor 75 and inter-car distance are electrically connected with efferent 81 with last car from sensor 91.Last car speed sensor 73, following car speed sensor 74, following car position sensor 76 and inter-car distance are electrically connected with efferent 82 with following car from sensor 91.

Last car with efferent 81 according to respectively from last car speed sensor 73, down car speed sensor 74, go up car position sensor 75 and inter-car distance from the information of sensor 91 (following be called in the present embodiment " going up car detection information "), there is collisionless to predict last car 71 with following car 72, when doping collision, working signal is outputed to car emergency braking device 77.

Following car with efferent 82 according to respectively from last car speed sensor 73, down car speed sensor 74, car position sensor 76 and inter-car distance be from the information (following be called in the present embodiment " following car detection information ") of sensor 91 down, to car 72 and last car 71 have collisionless to predict down, when doping collision, working signal is outputed to down car emergency braking device 78.Other structures are identical with embodiment 7.

In this lift appliance,, thereby can predict more reliably that car 71 and following car 72 have collisionless because efferent 79 bases have collisionless to predict from the information of sensor 91 to last car 71 and following car 72 from inter-car distance.

In addition, can open and close sensor 58 to the door of embodiment 3 and be applied to lift appliance according to above-mentioned embodiment 6～8, be input to efferent opening and closing detection signal, also can detect lead 61 to the fracture of embodiment 4 and be applied to lift appliance, the rope break signal is input to efferent according to above-mentioned embodiment 6～8.

And in above-mentioned embodiment 2～8, drive division utilizes the electromagnetic repulsive force or the electromagnetic attraction of the 1st electromagnetism portion 49 and the 2nd electromagnetism portion 50 to drive, yet also can utilize the vortex flow that for example produces in electric conductivity repels plate to drive.In the case, as shown in figure 15, be supplied to electromagnet 48, utilize the vortex flow of generation in the repulsion plate 51 fixing on movable part 40 and from the mutual action in the magnetic field of electromagnet 48, movable part 40 moves as the pulse current of working signal.

And in above-mentioned embodiment 2～8, the car speed detecting unit is arranged in the hoistway 1, yet also can be installed on the car.In the case, the speed detection signal from the car speed detecting unit is sent to efferent by control cable.

Embodiment 9

Figure 16 is the plane cross sectional drawing of the emergency braking device of expression embodiment of the present invention 9.In the drawings, emergency braking device 155 has: wedge 34; Actuation part 156 is connected with the bottom of wedge 34; And guide part 36, be configured in the top of wedge 34, be fixed on the car 3.Actuation part 156 can be with wedge 34 with respect to guide part 36 up-and-down movements.

Actuation part 156 has: a pair of contact part 157 can contact with car guide rail 2 and separate; Pair of links parts 158a, 158b are connected respectively with each contact part 157; Operating mechanism 159 makes a linkage component 158a move with the direction of separating with car guide rail 2 contacts towards each contact part 157 with respect to another linkage component 158b; And support 160, support each contact part 157, each linkage component 158a, 158b and operating mechanism 159.Be fixed with the horizontal shaft 170 that in wedge 34, runs through insertion on the support 160.Wedge 34 can move back and forth with respect to horizontal shaft 170 in the horizontal direction.

Each linkage component 158a, 158b are intersecting to the part the other end mutually from an end.And support 160 is provided with link 161, and this link 161 can make each linkage component 158a, 158b in the cross one another partial rotation of each linkage component 158a, 158b.And it can be the center rotation with connecting portion 161 with respect to another linkage component 158b that a linkage component 158a is arranged to.

Move towards mutual approaching direction by each the other end that makes linkage component 158a, 158b, each contact part 157 moves towards the direction that contacts with car guide rail 2 respectively.And, moving towards the direction that is separated from each other by each the other end that makes linkage component 158a, 158b, each contact part 157 moves towards the direction of separating with car guide rail 2 respectively.

Operating mechanism 159 is configured between each the other end of linkage component 158a, 158b.And operating mechanism 159 is by each linkage component 158a, 158b supporting.And operating mechanism 159 has: shaft-like movable part 162 is connected with a linkage component 158a; And drive division 163, be fixed on another linkage component 158b, movable part 162 is moved back and forth.Operating mechanism 159 can be the center rotation with link 161 with each linkage component 158a, 158b.

Movable part 162 has: movable core 164 is housed in the drive division 163; And pitman 165, movable core 164 and linkage component 158a are interconnected.And movable part 162 can move back and forth between the contact position of each contact part 157 and car guide rail 2 contacts and each contact part 157 and disengaged position that car guide rail 2 separates.

Drive division 163 has: secured core 166, comprise the restriction a pair of restrictions 166a, the 166b that move of movable core 164 and with the interconnective side wall portion 166c of each restrictions 166a, 166b, and around movable core 164; The 1st coil 167 is housed in the secured core 166, by energising movable core 164 is moved towards the direction that contacts with a restrictions 166a; The 2nd coil 168 is housed in the secured core 166, by energising movable core 164 is moved towards the direction that contacts with another restrictions 166b; And annular permanent magnnet 169, be configured between the 1st coil 167 and the 2nd coil 168.

A restrictions 166a is configured to, when movable part 162 during at disengaged position and movable core 164 butts.And another restrictions 166b is configured to, when movable part 162 during at contact position and movable core 164 butts.

The 1st coil 167 and the 2nd coil 168 are the ring-type magnet coils that surround movable part 162.And the 1st coil 167 is configured between permanent magnet 169 and the restrictions 166a, and the 2nd coil 168 is configured between permanent magnet 169 and another restrictions 166b.

Under the state of a movable core 164 and a restrictions 166a butt, because becoming magneto-resistive space is present between movable core 164 and another restrictions 166b, thereby the magnetic flow of permanent magnet 169 is more than the 2nd coil 168 sides in the 1st coil 167 sides, movable core 164 with the state of a restrictions 166a butt under be held.

And, under the state of movable core 164 and another restrictions 166b butt, because becoming magneto-resistive space is present between movable core 164 and the restrictions 166a, thereby the magnetic flow of permanent magnet 169 is more than the 1st coil 167 sides in the 2nd coil 168 sides, and movable core 164 still remains under the state with another restrictions 166b butt.

Be imported into the 2nd coil 168 as electric power from the working signal of efferent 32.And the 2nd coil 168 is because the input of working signal produces the magnetic flux that opposing keeps the power of a movable core 164 and a restrictions 166a butt.And, be imported into the 1st coil 167 as electric power from the restoring signal of efferent 32.And the 1st coil 167 is because the input of restoring signal produces the magnetic flux that opposing keeps the power of movable core 164 and another restrictions 166b butt.

Other structures are identical with embodiment 2.

Below, action is described.When normal operation, movable part 162 is positioned at disengaged position, and movable core 164 is by confining force and a restrictions 166a butt of permanent magnet 169.Under the state of a movable core 164 and a restrictions 166a butt, wedge 34 keeps the interval with guide part 36, separates with car guide rail 2.

Afterwards, the same with embodiment 2, by working signal is outputed to each emergency braking device 155 from efferent 32, come to 168 energisings of the 2nd coil.Like this, produce magnetic flux around the 2nd coil 168, movable core 164 moves to contact position from disengaged position towards moving with the approaching direction of another restrictions 166b.At this moment, each contact part 157 moves towards mutual approaching direction, contacts with car guide rail 2.Like this, wedge 34 and actuation part 156 are braked.

Afterwards, guide part 36 continues to descend, and is approaching with wedge 34 and actuation part 156.Like this, wedge 34 is by 44 guiding along the dip plane, and car guide rail 2 is clamped by wedge 34 and contact surface 45.Afterwards, with embodiment 2 the same actions, car 3 is braked.

When recovering, restoring signal is sent to the 1st coil 167 from efferent 32.Like this, produce magnetic flux around the 1st coil 167, movable core 164 moves to disengaged position from contact position.Afterwards, the same with embodiment 2, wedge 34 and pushing of 45 pairs of car guide rails 2 of contact surface are disengaged.

In this lift appliance, because operating mechanism 159 moves a pair of contact part 157 by each linkage component 158a, 158b, thereby, not only obtain the effect identical, and can reduce the quantity that is used to make the operating mechanism 159 that a pair of contact part 157 moves with embodiment 2.

Embodiment 10

Figure 17 is the partial cross sectional side elevation view of the emergency braking device of expression embodiment of the present invention 10.In the drawings, emergency braking device 175 has: wedge 34; Actuation part 176 is connected with the bottom of wedge 34; And guide part 36, be configured in the top of wedge 34, be fixed on the car 3.

Actuation part 176 has: operating mechanism 159 has the structure identical with embodiment 9; And linkage component 177, the moving of the movable part 162 by operating mechanism 159.

Operating mechanism 159 is fixed on the bottom of car 3, and movable part 162 is moved back and forth with respect to car 3 along continuous straight runs.Linkage component 177 can be rotatably set on the anchor shaft 180 of the bottom of being fixed in car 3.Anchor shaft 180 is configured in the below of operating mechanism 159.

It is the 1st link rod part 178 and the 2nd link rod part 179 that starting point is extended towards different directions respectively that linkage component 177 has with anchor shaft 180, as the global shape of linkage component 177, is ヘ word shape roughly.That is, the 2nd link rod part 179 is fixed on the 1st link rod part 178, and the 1st link rod part 178 and the 2nd link rod part 179 can be center one rotation with anchor shaft 180.

The length of the 1st link rod part 178 is longer than the length of the 2nd link rod part 179.And, be provided with slotted hole 182 at the terminal part of the 1st link rod part 178.Be fixed with the sliding pin 183 that passes through slotted hole 182 slidably in the bottom of wedge 34.That is, wedge 34 is connected with the terminal part of the 1st link rod part 178 slidably.The terminal part of movable part 162 rotatably is connected with the terminal part of the 2nd link rod part 179 by connecting pin 181.

Linkage component 177 can make wedge 34 at the disengaged position that separates below the guide part 36 and make between the wedge 34 engaging-in actuated positions between car guide rail and guide part 36 and move back and forth.When linkage component 177 during at disengaged position, movable part 162 is outstanding from drive division 163, and when linkage component 177 during at control position, movable part 162 retreats towards drive division 163.

Below, action is described.When normal operation, linkage component 177 is positioned at disengaged position owing to movable part 162 retreats towards drive division 163.At this moment, wedge 34 keeps the interval with guide part 36, separates with car guide rail.

Afterwards, the same with embodiment 2, working signal outputs to each emergency braking device 175 from efferent 32, and movable part 162 is advanced.Like this, linkage component 177 is the center rotation with anchor shaft 180, thereby moves towards control position.Like this, wedge 34 contacts with car guide rail with guide part 36, and engaging-in between guide part 36 and car guide rail.Like this, car 3 is braked.

When recovering, restoring signal is sent to emergency braking device 175 from efferent 32, the movable part 162 direction application of force that moved backward.Under this state, car 3 is risen, remove wedge 34 engaging-in towards between guide part 36 and the car guide rail.

In this lift appliance, also can obtain the effect identical with embodiment 2.

Embodiment 11

Figure 18 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 11.In the drawings, be provided with at hoistway 1 internal upper part: towing machine 101 is actuating devices; And control panel 102, be electrically connected the running of control elevator with towing machine 101.Towing machine 101 has: actuating device main body 103, and it comprises electrical motor; And drive rope sheave 104, be wound with many main ropes 4, and by 103 rotations of actuating device main body.Towing machine 101 is provided with: deflector sheave 105 is wound with each main rope 4; And towing machine is brake units of the rotation that drives rope sheave 104 being braked for car 3 is slowed down with brake equipment (slow down and use brake equipment) 106.Car 3 and counterweight 107 are suspended in the hoistway 1 by each main rope.Car 3 and counterweight 107 are by driving lifting in hoistway 1 of towing machine 101.

Emergency braking device 33, towing machine are electrically connected with monitor unit 108 with brake equipment 106 and control panel 102, and this monitor unit 108 monitors the state of elevator all the time.Car position sensor 109, car speed sensor 110 and car acceleration pick-up 111 are electrically connected with monitor unit 108 respectively, this car position sensor 109 is car position test sections that the position of car 3 is detected, this car speed sensor 110 is car speed test sections that the speed to car 3 detects, and this car acceleration pick-up 111 is car acceleration detecting section that the acceleration/accel to car 3 detects.Car position sensor 109, car speed sensor 110 and car acceleration pick-up 111 are arranged in the hoistway 1.

In addition, the detecting unit 112 that the elevator state is detected has: car position sensor 109, car speed sensor 110 and car acceleration pick-up 111.And, as car position sensor 109, can enumerate with lower member etc.: coder, by the rotation amount that moves the swivel that rotates of following car 3 is carried out the position that instrumentation detects car 3; Linear encoder is by measuring the position that straight-line amount of movement detects car 3; Perhaps optical displacement analyzer has and for example is arranged on light projector and the light-receiving device in the hoistway 1 and is arranged on reflecting plate in the car 3, by to be subjected to light institute spended time to measure the position of detecting car 3 from the light projector light projector to light-receiving device.

Monitor unit 108 has: storage part 113 stores in advance to become and is used for judging that elevator has multiple (this example is 2 kinds) unusual judgment standard (setting data) of N/R benchmark; And efferent (operational part) 114, detecting elevator according to detecting unit 112 and storage part 113 information separately has no abnormal.In this embodiment, contain at storage part 113 internal memories: the unusual judgment standard of car speed is the unusual judgment standard to the speed of car 3; And the unusual judgment standard of car acceleration/accel, be unusual judgment standard to the acceleration/accel of car 3.

Figure 19 is the diagram of curves that expression is stored in the unusual judgment standard of car speed in the storage part 113 of Figure 18.In the drawings, the lifting interval of the car 3 in hoistway 1 is provided with in (interval between a terminating layer and another terminating layer): the acceleration and deceleration interval makes car 3 carry out acceleration and deceleration near one and another terminating layer; And the constant speed interval, car 3 is moved with constant speed between each acceleration and deceleration interval.

In the unusual judgment standard of car speed, correspondingly with the position of car 3 be set with 3 grades of test pattern.That is, in the unusual judgment standard of car speed, the position with car 3 is set with accordingly respectively: normal speed test pattern (normal level) 115, the speed of the car 3 when being normal operation; The 1st abnormal speed test pattern (the 1st abnormal level) 116 has the value bigger than normal speed test pattern 115; And the 2nd abnormal speed test pattern (the 2nd abnormal level) 117, have the value bigger than the 1st abnormal speed test pattern 116.

Normal speed test pattern the 115, the 1st abnormal speed test pattern 116 and the 2nd abnormal speed test pattern 117 are set in constant speed interval for steady state value respectively, reduce continuously to terminating layer in the acceleration and deceleration interval.And the difference poor and the 2nd abnormal speed test pattern 117 and the 1st abnormal speed test pattern 116 of the 1st abnormal speed test pattern 116 and normal speed test pattern 115 is not set all the position constants in the lifting interval for.

Figure 20 is the diagram of curves that expression is stored in the unusual judgment standard of car acceleration/accel in the storage part 113 of Figure 18.In the drawings, in the unusual judgment standard of car acceleration/accel, be set with 3 grades of test pattern accordingly with the position of car 3.That is, in the unusual judgment standard of car acceleration/accel, the position with car 3 is set with accordingly respectively: normal acceleration test pattern (normal level) 118, the acceleration/accel of the car 3 when being normal operation; The 1st unusual acceleration detection figure (the 1st abnormal level) 119 has the value bigger than normal acceleration test pattern 118; And the 2nd unusual acceleration detection figure (the 2nd abnormal level) 120, have the value bigger than the 1st unusual acceleration detection figure 119.

Normal acceleration test pattern the 118, the 1st unusual acceleration detection figure 119 and the 2nd unusual acceleration detection figure 120 are set for respectively in that constant speed is interval and are null value, in an acceleration and deceleration interval be on the occasion of, be negative value in another acceleration and deceleration interval.And the difference poor and the 2nd unusual acceleration detection figure 120 and the 1st unusual acceleration detection figure 119 of the 1st unusual acceleration detection figure 119 and normal acceleration test pattern 118 is not set all the position constants in the lifting interval for.

Promptly, in storage part 113, store normal speed test pattern the 115, the 1st abnormal speed test pattern 116 and the 2nd abnormal speed test pattern 117 as the unusual judgment standard of car speed, store normal acceleration test pattern the 118, the 1st unusual acceleration detection figure 119 and the 2nd unusual acceleration detection figure 120 as the unusual judgment standard of car acceleration/accel.

Emergency braking device 33, control panel 102, towing machine are electrically connected with efferent 114 respectively with brake equipment 106, detecting unit 112 and storage part 113.And, from the position detection signal of car position sensor 109, be input to efferent 114 constantly respectively from the speed detection signal of car speed sensor 110 and from the acceleration detection signal of car acceleration pick-up 111.At efferent 114, calculate the position of car 3 according to the input of position detection signal, and, calculate the speed of car 3 and the acceleration/accel of car 3 respectively and judge key element unusually as multiple (in this example being two kinds) according to speed detection signal and the input separately of acceleration detection signal.

When the speed of car 3 surpassed the 1st abnormal speed test pattern 116, perhaps when the acceleration/accel of car 3 surpassed the 1st unusual acceleration detection figure 119, efferent 114 outputed to towing machine usefulness brake equipment 106 to working signal (energizing signal).And efferent 114 outputs to control panel 102 to the danger signal that is used to stop to drive towing machine 101 working signal being outputed to towing machine with in the brake equipment 106.And when the speed of car 3 surpassed the 2nd abnormal speed test pattern 117, perhaps when the acceleration/accel of car 3 surpassed the 2nd unusual acceleration detection figure 120, efferent 114 outputed to towing machine usefulness brake equipment 106 and emergency braking device 33 to working signal.That is, efferent 114 is determined the brake unit of output services signal according to the speed of car 3 and the intensity of anomaly of acceleration/accel.

Other structures are identical with embodiment 2.

Below, action is described.When from the position detection signal of car position sensor 109, when being imported into efferent 114 from the speed detection signal of car speed sensor 110 and from the acceleration detection signal of car acceleration pick-up 111, at efferent 114, according to the input of each detection signal, calculate position, speed and the acceleration/accel of car 3.Afterwards, at efferent 114, the unusual judgment standard of the car speed that obtains respectively from storage part 113 and the unusual judgment standard of car acceleration/accel speed and the acceleration/accel with the car 3 of calculating according to the input of each detection signal compared, the speed and the acceleration/accel of car 3 each had no abnormal the detection.

When normal operation, because the speed of car 3 has the value roughly the same with the normal speed test pattern, and the acceleration/accel of car 3 has the value roughly the same with the normal acceleration test pattern, thereby at efferent 114, the speed and the acceleration/accel that detect car 3 are not unusual separately, continue the normal operation of elevator.

In the velocity anomaly rising that for example makes car 3 for a certain reason and above under the situation of the 1st abnormal speed test pattern 116, the speed that detects car 3 at efferent 114 has unusually, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine, the rotation that drives rope sheave 104 is braked with brake equipment 106 actions.

And, in the acceleration/accel abnormal ascending of car 3 and above under the situation of the 1st unusual acceleration/accel setting value 119, working signal and danger signal output to towing machine respectively with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 startings, in the further rising of the speed of car 3 and above under the situation of the 2nd abnormal speed setting value 117, working signal outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114.Like this, emergency braking device 33 action is braked car 3 by the action identical with embodiment 2.

And, after towing machine is with brake equipment 106 actions, in the further rising of the acceleration/accel of car 3 and above under the situation of the 2nd unusual acceleration/accel setting value 120, working signal outputed to towing machine with under the state of brake equipment 106 keeping, working signal is outputed to emergency braking device 33 from efferent 114, make emergency braking device 33 actions.

In this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the acceleration/accel of car 3 according to the information from the detecting unit 112 that the elevator state is detected, when any one party in the acceleration/accel of the speed of judging obtained car 3 and car 3 is unusual, working signal is outputed to towing machine with at least any one party in brake equipment 106 and the emergency braking device 33, thereby, the detection that can make 108 pairs of abnormal elevators of monitor unit more early and more reliable can further be shortened from abnormal elevator taking place to producing the time required to the braking force of car 3.Promptly, because the speed of car 3 and the so multiple unusual judgement key element of acceleration/accel of car 3 have no abnormal by monitor unit 108 judgement separately respectively, thereby, the detection that can make 108 pairs of abnormal elevators of monitor unit more early and more reliable can be shortened from abnormal elevator taking place to producing the time required to the braking force of car 3.

And, because monitor unit 108 has storage part 113, this storage part 113 stores and is used to judge that the speed of car 3 has the unusual judgment standard of N/R car speed and is used to judge that the acceleration/accel of car 3 has the unusual judgment standard of N/R car acceleration/accel, thereby, the speed and the acceleration/accel that can easily change car 3 each have N/R judgment standard, can easily tackle the design modification of elevator etc.

And, owing in the unusual judgment standard of car speed, be set with: normal speed test pattern 115; The 1st abnormal speed test pattern 116 has the value bigger than normal speed test pattern 115; And the 2nd abnormal speed test pattern 117, have the value bigger than the 1st abnormal speed test pattern 116, and when the speed of car 3 surpasses the 1st abnormal speed test pattern 116, working signal outputs to towing machine brake equipment 106 from monitor unit 108, when the speed of car 3 surpasses the 2nd abnormal speed test pattern 117, working signal outputs to towing machine brake equipment 106 and emergency braking device 33 from monitor unit 108, thereby, can carry out the stage braking to car 3 according to the velocity anomaly size of car 3.Therefore, can reduce the frequency that applies large impact to car 3, and car 3 is stopped more reliably.

And, owing in the unusual judgment standard of car acceleration/accel, be set with: normal acceleration test pattern 118; The 1st unusual acceleration detection figure 119 has the value bigger than normal acceleration test pattern 118; And the 2nd unusual acceleration detection figure 120, have the value bigger than the 1st unusual acceleration detection figure 119, and when the acceleration/accel of car 3 surpasses the 1st unusual acceleration detection figure 119, working signal outputs to towing machine brake equipment 106 from monitor unit 108, when the acceleration/accel of car 3 surpasses the 2nd unusual acceleration detection figure 120, working signal outputs to towing machine brake equipment 106 and emergency braking device 33 from monitor unit 108, thereby, can carry out the stage braking to car 3 according to the acceleration/accel of car 3 is big or small unusually.Usually, because before the speed of car 3 took place unusually, the acceleration/accel of car 3 took place unusual, thereby can further reduce the frequency that applies large impact to car 3, and car 3 is stopped more reliably.

And, owing to be set with normal speed test pattern the 115, the 1st abnormal speed test pattern 116 and the 2nd abnormal speed test pattern 117 accordingly with the position of car 3, thereby, can set the 1st abnormal speed test pattern 116 and the 2nd abnormal speed test pattern 117 accordingly respectively in all positions and the normal speed test pattern 115 in the lifting interval of car 3.Therefore, because particularly in the acceleration and deceleration interval, the value of normal speed test pattern 115 is little, thereby, can set the 1st abnormal speed test pattern 116 and the 2nd abnormal speed test pattern 117 for smaller value respectively, can reduce the impact that causes by braking car 3.

In addition, in above-mentioned example, obtain the speed of car 3 for making monitor unit 108, used car speed sensor 110, yet also can not use car speed sensor 110, but according to the speed that derives car 3 by the position of car position sensor 109 detected cars 3.That is, also can obtain the speed of car 3 by to differentiating according to the position of the car 3 of calculating from the position detection signal of car position sensor 109.

And, in above-mentioned example, obtain the acceleration/accel of car 3 for making monitor unit 108, used car acceleration pick-up 111, yet also can not use car acceleration pick-up 111, but according to the acceleration/accel of deriving car 3 by the position of car position sensor 109 detected cars 3.That is, also can obtain the acceleration/accel of car 3 by to asking second differential according to the position of the car 3 of calculating from the position detection signal of car position sensor 109.

And, in above-mentioned example, efferent 114 is determined the brake unit of output services signal according to the speed of the car 3 of judging key element unusually and the intensity of anomaly of acceleration/accel as each, yet can pre-determine the brake unit of output services signal to each unusual judgement key element.

Embodiment 12

Figure 21 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 12.In the drawings, the stop at each floor is provided with a plurality of hall call buttons 125.And, in car 3, be provided with a plurality of destination floor buttons 126.And monitor unit 127 has efferent 114.The unusual judgment standard generating apparatus 128 that generates unusual judgment standard of car speed and the unusual judgment standard of car acceleration/accel is electrically connected with efferent 114.Unusual judgment standard generating apparatus 128 is electrically connected with each hall call buttons 125 and each destination floor button 126 respectively.Position detection signal is imported into unusual judgment standard generating apparatus 128 from car position sensor 109 by efferent 114.

Unusual judgment standard generating apparatus 128 has: storage part 129 (memory section), and the storage conduct is about a plurality of car speed unusual judgment standard and a plurality of car acceleration/accels unusual judgment standard of car 3 at the unusual judgment standard of all situations of each floor gap lifting; And generating unit 130, from storage part 129, select each one of unusual judgment standard of car speed and the unusual judgment standard of car acceleration/accel, unusual judgment standard of selected car speed and the unusual judgment standard of car acceleration/accel are outputed to efferent 114.

In the unusual judgment standard of each car speed, be set with the 3 grade test pattern identical accordingly with the unusual judgment standard of car speed shown in Figure 19 of embodiment 11 with the position of car 3.And, in the unusual judgment standard of each car acceleration/accel, be set with the 3 grade test pattern identical accordingly with the unusual judgment standard of car acceleration/accel shown in Figure 20 of embodiment 11 with the position of car 3.

Generating unit 130 is according to the detection position of calculating car 3 from the information of car position sensor 109, according to the destination of calculating car 3 from the information of at least any one party in each hall call buttons 125 and the destination floor button 126.And generating unit 130 is selected with the detection position of being calculated and destination as each one of the unusual judgment standard of car speed of and another terminating layer and the unusual judgment standard of car acceleration/accel.

Other structures are identical with embodiment 11.

Below, action is described.Position detection signal is input to generating unit 130 from car position sensor 109 by efferent 114 always.When waiting any one party of selecting in each hall call buttons 125 and the destination floor button 126 by for example passenger, and with calling signal when selected button is input to generating unit 130, in generating unit 130, calculate the detection position and the destination of car 3 according to the input of position detection signal and calling signal, select each one of unusual judgment standard of car speed and the unusual judgment standard of car acceleration/accel.Afterwards, from generating unit 130 unusual judgment standard of selected car speed and the unusual judgment standard of car acceleration/accel are outputed to efferent 114.

At efferent 114, the same with embodiment 11, the speed and the acceleration/accel of car 3 each had no abnormal the detection.Action afterwards is identical with embodiment 9.

In this lift appliance, because unusual judgment standard generating apparatus generates unusual judgment standard of car speed and the unusual judgment standard of car acceleration/accel according to the information from least any one party in hall call buttons 125 and the destination floor button 126, thereby, can generate and unusual judgment standard of the cooresponding car speed of destination and the unusual judgment standard of car acceleration/accel, even under the situation of having selected the different target floor, also can shorten from elevator and take place when unusual to producing the required time of braking force.

In addition, in above-mentioned example, generating unit 130 in being stored in storage part 129 the unusual judgment standard of a plurality of car speed and the unusual judgment standard of a plurality of car acceleration/accels select each one of the unusual judgment standard of car speed and the unusual judgment standard of car acceleration/accel, yet also can directly generate abnormal speed test pattern and unusual acceleration detection figure respectively according to the normal speed figure and the normal acceleration figure of the car 3 that generates by control panel 102.

Embodiment 13

Figure 22 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 13.In this embodiment, each main rope 4 is connected with the top of car 3 by rope fastening device 131.Monitor unit 108 is installed in the top of car 3.Car position sensor 109, car speed sensor 110 and a plurality of rope sensor 132 are electrically connected with efferent 114 respectively, these a plurality of rope sensors 132 are arranged on the rope fastening device 131, are the rope fracture test sections that has crack-free to detect to each main rope 4 respectively.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and rope sensor 132.

When main rope 4 broke, each rope sensor 132 outputed to efferent 114 to the detection signal that breaks respectively.And, contain at storage part 113 internal memories: the car speed unusual judgment standard identical and as the unusual judgment standard of rope of judging that main rope 4 has N/R benchmark with embodiment shown in Figure 19 11.

Be set with respectively in the unusual judgment standard of rope: the 1st abnormal level is at least one state that main rope 4 breaks; And the 2nd abnormal level, be the state that all main ropes 4 break.

At efferent 114, calculate the position of car 3 according to the input of position detection signal, and, calculate the speed of car 3 and the state of main rope 4 respectively and judge key element unusually as multiple (in this example being two kinds) according to the speed detection signal and the detection signal input separately of breaking.

When the speed of car 3 surpassed the 1st abnormal speed test pattern 116 (Figure 19), perhaps when at least one main rope 4 broke, efferent 114 outputed to towing machine brake equipment 106 to working signal (energizing signal).And when the speed of car 3 surpassed the 2nd abnormal speed test pattern 117 (Figure 19), perhaps when all main ropes 4 broke, efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.That is, efferent 114 is determined the brake unit of output services signal according to the speed of car 3 and the state intensity of anomaly separately of main rope 4.

Figure 23 be expression among Figure 22 rope fastening device 131 and the constructional drawing of each rope sensor 132.And Figure 24 is the constructional drawing of the state that breaks of the 1 piece main rope 4 of expression among Figure 23.In the drawings, rope fastening device 131 has each main rope 4 and a plurality of rope connecting portions 134 of car 3 bonded assemblys.Each rope connecting portion 134 has the elastomeric spring 133 between main rope 4 and car 3.Car 3 can move with respect to the position of each main rope 4 by the flexible of each elastomeric spring 133.

Rope sensor 132 is arranged on each rope connecting portion 134.Each rope sensor 132 is displacement measuring instruments of measuring the elongation of elastomeric spring 133.132 cooresponding measured signals of the elongation with elastomeric spring 133 of each rope sensor always output to efferent 114.Measured signal when elastomeric spring 133 reaches specified amount by the elongation that recovers to cause is used as the detection signal that breaks and is input to efferent 114.In addition, can be arranged on the measurement mechanism of the tension force of each main rope 4 of direct mensuration on each rope connecting portion 134 as the rope sensor.

Other structures are identical with embodiment 11.

Below, action is described.When from the position detection signal of car position sensor 109, when being imported into efferent 114 from the speed detection signal of car speed sensor 110 and from the detection signal that breaks of each rope sensor 131, at efferent 114, according to the input of each detection signal, calculate the position of car 3, the speed of car 3 and the radical that breaks of main rope 4.Afterwards, at efferent 114, the unusual judgment standard of the car speed that obtains respectively from storage part 113 and the unusual judgment standard of rope, compare, the speed of car 3 and the state of main rope 4 are each had no abnormal the detection with the speed of the car 3 of calculating and the radical that breaks of main rope 4 according to the input of each detection signal.

When normal operation, because the speed of car 3 has the value roughly the same with the normal speed test pattern, and the radical that breaks of main rope 4 is zero, thereby at efferent 114, detecting the speed of car 3 and the state of main rope 4 does not have unusually separately, continues the normal operation of elevator.

In the velocity anomaly rising that for example makes car 3 for a certain reason and above under the situation of the 1st abnormal speed test pattern 116 (Figure 19), the speed that detects car 3 at efferent 114 has unusually, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine, the rotation that drives rope sheave 104 is braked with brake equipment 106 actions.

And under the situation that at least one main rope 4 breaks, working signal and danger signal output to towing machine respectively with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 startings, in the further rising of the speed of car 3 and above under the situation of the 2nd abnormal speed setting value 117 (Figure 19), working signal outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 action, car 3 is braked by the action identical with embodiment 2.

And, after towing machine is with brake equipment 106 starting, under the situation that all main ropes 4 break, also working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal is outputed to emergency braking device 33 from efferent 114, make emergency braking device 33 actions.

In this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the state of main rope 4 according to the information from the detecting unit 112 that the elevator state is detected, when any one party in the state of speed that is judged as obtained car 3 and main rope 4 has when unusual, working signal is outputed to towing machine with at least any one party in brake equipment 106 and the emergency braking device 33, thereby, the abnormality detection number of objects increases, not only can detect the velocity anomaly of car 3, and can detect the abnormal state of main rope 4, can make that the boundary of 108 pairs of elevators of monitor unit is normal to be detected more early and more reliable.Therefore, can further shorten from the elevator generation unusually to producing the time required the braking force of car 3.

In addition, in above-mentioned example, be provided with rope sensor 132 in the rope fastening device 131 on being arranged at car 3, yet also rope sensor 132 can be set in the rope fastening device on being arranged at counterweight 107.

And, in above-mentioned example, the present invention is applied to the lift appliance of following type, that is: an end of main rope 4 is connected respectively with counterweight 107 with car 3 with the other end, car 3 and counterweight 107 are suspended in the hoistway 1, yet the present invention also can be applied to the lift appliance of following type, that is: the works bonded assembly master rope 4 in an end and the other end and the hoistway 1 is wound on respectively on car hanging wheel and the counterweight hanging wheel, and car 3 and counterweight 107 are suspended in the hoistway 1.In the case, the rope sensor is arranged in the rope fastening device set on the works in the hoistway 1.

Embodiment 14

Figure 25 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 14.In this embodiment, the rope sensor 135 as rope fracture test section is the leads that are embedded in each main rope 4.Each lead extends at the length direction of main rope 4.One end of each lead and the other end are electrically connected with efferent 114 respectively.In each lead, there is weak current to flow through.Be used as the detection signal that breaks to the cut-out of the energising of each lead respectively and be input to efferent 114.

Other structures are identical with embodiment 13 with action.

In this lift appliance, because the cut-out according to the energising of the lead in being embedded in each main rope 4 detects breaking of each main rope 4, thereby, can not be subjected to the influence of the tension variation of each main rope 4 that the acceleration and deceleration by car 3 cause, can detect each main rope 4 more reliably has crack-free.

Embodiment 15

Figure 26 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 15.In the drawings, car position sensor 109, car speed sensor 110 and door sensor 140 are electrically connected with efferent 114, and this door sensor 140 is that the gangway that the open and-shut mode to car gangway 26 detects opens and closes test section.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and door sensor 140.

When car gangway 26 is in when closing state, door sensor 140 outputs to efferent 114 closing a detection signal.And, contain at storage part 113 internal memories: car speed unusual judgment standard identical and the gangway abnormal state judgment standard that N/R benchmark is arranged as the open and-shut mode of judging car gangway 26 with embodiment shown in Figure 19 11.Gangway abnormal state judgment standard is that the state of car 3 liftings and patent door is judged as unusual unusual judgment standard.

At efferent 114, calculate the position of car 3 according to the input of position detection signal, and, calculate the speed of car 3 and the state of car gangway 26 respectively and judge key element unusually as multiple (in this example being two kinds) according to speed detection signal and close detection signal input separately.

When car 3 liftings under the state of car gangway 26 patent doors, perhaps when the speed of car 3 surpassed the 1st abnormal speed test pattern 116 (Figure 19), efferent 114 outputed to towing machine brake equipment 106 to working signal.And when the speed of car 3 surpassed the 2nd abnormal speed test pattern 117 (Figure 19), efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.

Figure 27 is the car 3 of expression Figure 26 and the block diagram of door sensor 140.And Figure 28 is the block diagram of the state opened of car gangway 26 of expression Figure 27.In the drawings, door sensor 140 is configured in the top of car gangway 26, and the frontal of relative car 3 is configured in the central authorities of car gangway 26.140 pairs of a pair of gates 28 of door sensor detect towards closing the mobile of a position separately, output to efferent 114 closing a detection signal.

In addition,, can list touch sensor or proximity transducer etc. as door sensor 140, touch sensor by be fixed on each gate 28 on fixed part contact the state that closes that detects, proximity transducer detects a state that closes by noncontact.And, be provided with a pair of layer door 142 that landing doorway 141 is opened and closed at landing doorway 141.When car 3 rested in the stop floor, each layer door 142 engaged with each gate 28 by clamping close device (not shown), moved with each gate 28.

Other structures are identical with embodiment 11.

Below, action is described.When from the position detection signal of car position sensor 109, from the speed detection signal of car speed sensor 110 and from the closing a detection signal and be imported into efferent 114 of door sensor 140, at efferent 114, according to the input of each detection signal, calculate the position of car 3, the speed of car 3 and the state of car gangway 26.Afterwards, at efferent 114, the unusual judgment standard of unusual judgment standard of the car speed that obtains respectively from storage part 113 and gangway, compare, the speed of car 3 and the state of car gangway 26 are each had no abnormal the detection with the speed of the car 3 of calculating according to the input of each detection signal and the state of each gate 28.

When normal operation, because the speed of car 3 has the value roughly the same with the normal speed test pattern, and the car gangway 26 during car 3 liftings is in a state that closes, thereby, at efferent 114, detecting the speed of car 3 and the state of car gangway 26 does not have unusually separately, continues the normal operation of elevator.

In the velocity anomaly rising that for example makes car 3 for a certain reason and above under the situation of the 1st abnormal speed test pattern 116 (Figure 19), the speed that detects car 3 at efferent 114 has unusually, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine, the rotation that drives rope sheave 104 is braked with brake equipment 106 actions.

And, car gangway 26 when car 3 liftings is under the situation of patent door state, detect the unusual of car gangway 26 at efferent 114, working signal and danger signal output to towing machine respectively with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 startings, in the further rising of the speed of car 3 and above under the situation of the 2nd abnormal speed setting value 117 (Figure 19), working signal outputed to towing machine with under the state of brake equipment 106 keeping, working signal is outputed to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 action, car 3 is braked by the action identical with embodiment 2.

In this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the state of car gangway 26 according to the information from the detecting unit 112 that the elevator state is detected, when any one party in the state of speed that is judged as obtained car 3 and car gangway 26 has when unusual, working signal is outputed to towing machine with at least any one party in brake equipment 106 and the emergency braking device 33, thereby, the abnormality detection number of objects of elevator increases, not only can detect the velocity anomaly of car 3, and can detect the abnormal state of car gangway 26, the abnormality detection that can make 108 pairs of elevators of monitor unit is more early and more reliable.Therefore, can further shorten from the elevator generation unusually to producing the time required the braking force of car 3.

In addition, in above-mentioned example, only detect the state of car gangway 26, yet also can use door sensor 140 to detect car gangway 26 and landing doorway 141 state separately by door sensor 140.In the case, detect each layer door 142 by door sensor 140 and close moving of a position towards closing moving of a position with each gate 28 courts.Like this, though for example make gate 28 and layer door 142 mutually engaging et out of orders such as clamping close device, only have under the situation that gate 28 moves, also can detect abnormal elevator.

Embodiment 16

Figure 29 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 16.Figure 30 is the constructional drawing on hoistway 1 top among expression Figure 29.In the drawings, electric power supply cable 150 is electrically connected with towing machine 101.Driving electric offers towing machine 101 by the control of control panel 102 via electric power supply cable 150.

Electric power supply cable 150 is provided with current sensor 151, and this current sensor 151 is by the electric current of the electric power supply cable 150 of flowing through being measured the actuating device test section of the state that detects towing machine 101.151 cooresponding current detection signals of the current value with electric power supply cable 150 of current sensor (actuating device state detection signal) output to efferent 114.In addition, current sensor 151 is configured in hoistway 1 top.And, as current sensor 151, can list current transformer (CT) etc., this current transformer (CT) is measured the inducing current that the size of current according to the electric power supply cable 150 of flowing through produces.

Car position sensor 109, car speed sensor 110 and current sensor 151 are electrically connected with efferent 114 respectively.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and current sensor 151.

Contain at storage part 113 internal memories: car speed unusual judgment standard identical and the unusual judgment standard of actuating device that N/R benchmark is arranged as the state of judging towing machine 101 with embodiment shown in Figure 19 11.

In the unusual judgment standard of actuating device, be set with 3 grades of test pattern.That is, be set with in the unusual judgment standard of actuating device: normal level is the current value of electric power supply cable 150 of flowing through when normal operation; The 1st abnormal level has the value bigger than normal level; And the 2nd abnormal level, have the value bigger than the 1st abnormal level.

At efferent 114, calculate the position of car 3 according to the input of position detection signal, and, calculate the speed of car 3 and the state of towing machine 101 respectively and judge key element unusually as multiple (in this example being two kinds) according to speed detection signal and current detection signal input separately.

When the speed of car 3 surpasses the 1st abnormal speed test pattern 116 (Figure 19), perhaps when the size of current of the electric power supply cable 150 of flowing through surpassed the value of the 1st abnormal level in the unusual judgment standard of actuating device, efferent 114 outputed to towing machine brake equipment 106 to working signal (energizing signal).And, when the speed of car 3 surpasses the 2nd abnormal speed test pattern 117 (Figure 19), perhaps when the size of current of the electric power supply cable 150 of flowing through surpassed the value of the 2nd abnormal level in the unusual judgment standard of actuating device, efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.That is, efferent 114 is determined the brake unit of output services signal according to the speed of car 3 and the state intensity of anomaly separately of towing machine 101.

Other structures are identical with embodiment 11.

Below, action is described.When from the position detection signal of car position sensor 109, when being imported into efferent 114 from the speed detection signal of car speed sensor 110 and from the current detection signal of current sensor 151, at efferent 114, according to the input of each detection signal, calculate the position of car 3, the speed of car 3 and the size of current in the electric power supply cable 150.Afterwards, at efferent 114, unusual judgment standard of the car speed that obtains respectively from storage part 113 and actuating device abnormal state judgment standard are compared with the speed of the car 3 of calculating according to the input of each detection signal and the size of current in the electric power supply cable 150, the speed of car 3 and the state of towing machine 101 are each had no abnormal the detection.

When normal operation, because the speed of car 3 has and the roughly the same value of normal speed test pattern 115 (Figure 19), and the size of current of the electric power supply cable 150 of flowing through is normal levels, thereby at efferent 114, detecting the speed of car 3 and the state of towing machine 101 does not have unusually separately, continues the normal operation of elevator.

In the velocity anomaly rising that for example makes car 3 for a certain reason and above under the situation of the 1st abnormal speed test pattern 116 (Figure 19), the speed that detects car 3 at efferent 114 has unusually, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine, the rotation that drives rope sheave 104 is braked with brake equipment 106 startings.

And, size of current at the electric power supply cable 150 of flowing through surpasses under the situation of the 1st abnormal level in the actuating device abnormal state judgment standard, working signal and danger signal output to towing machine respectively with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 actions, in the further rising of the speed of car 3 and above under the situation of the 2nd abnormal speed setting value 117 (Figure 19), working signal outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 action, car 3 is braked by the action identical with embodiment 2.

And, after towing machine is with brake equipment 106 startings, size of current at the electric power supply cable 150 of flowing through surpasses under the situation of the 2nd abnormal level in the actuating device abnormal state judgment standard, working signal outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114, makes emergency braking device 33 actions.

In this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the state of towing machine 101 according to the information from the detecting unit 112 that the elevator state is detected, when any one party in the state of speed that is judged as obtained car 3 and towing machine 101 has when unusual, working signal is outputed to towing machine with at least any one party in brake equipment 106 and the emergency braking device 33, thereby, the abnormality detection number of objects of elevator increases, and can further shorten from elevator to take place unusually to the braking force required time that produces car 3.

In addition, in above-mentioned example, the current sensor 151 that use is measured the size of current of the electric power supply cable 150 of flowing through detects the state of towing machine 101, yet also can use the temperature sensor that the temperature of towing machine 101 is measured to detect the state of towing machine 101.

And, in above-mentioned embodiment 11～16, efferent 114 is before outputing to emergency braking device 33 to working signal, working signal is outputed to towing machine brake equipment 106, yet efferent 114 is outputed to working signal: car brake, be installed separately on car 3 with emergency braking device 33, come car 3 is braked by clamping car guide rail 2; The counterweight drg is installed on the counterweight 107, comes counterweight 107 is braked by the counterweight guide rail of clamping guiding counterweight 107; Perhaps wire stopper is arranged in the hoistway 1, by limiting main rope 4 main rope 4 is braked.

And, in above-mentioned embodiment 1～16, as the delivery unit that is used for electric power is offered from efferent emergency braking device, use electrical cable, yet also can use radio communication device, this radio communication device has transmitter that is arranged in the efferent and the receptor that is arranged in the urgent stop mechanism.And, also can use the fibre-optic cable that transmits optical signal.

And, in above-mentioned embodiment 1～16, emergency braking device to car down the mistake speed (moving) of direction brake, yet this emergency braking device also can be installed in upside down on the car, the mistake speed (moving) of direction is up braked.

Embodiment 17

Next, Figure 31 is the constructional drawing of the lift appliance of expression embodiment of the present invention 17.In the drawings, in the bottom of car 3, be provided with the erecting frame 201 that can move relative to the direction (above-below direction) that car 3 leaves to contact.Be provided with between car 3 and the erecting frame 201 restriction erecting frame 201 relative to car 3 to a plurality of stop parts 202 that move near car 3 directions.

In addition, between car 3 and erecting frame 201, be provided with the application of force unit 203 of erecting frame 201 to the direction application of force of leaving car 3.As application of force unit 203, for example use spring etc.

A pair of car hanging wheel 204a, 204b are installed on erecting frame 201.On car hanging wheel 204a, 204b, be wound with main rope 4.On the top of counterweight 107 counterweight hanging wheel 205 is installed.On counterweight hanging wheel 205, be wound with main rope 4.

Main rope 4 has the 1st and the 2nd end 4a, 4b.The the 1st and the 2nd end 4a, 4b are connected on the support beam 206 that is fixed in hoistway 1 top by rope fastener (not shown).

In addition, main rope 4 is wound on car hanging wheel 204a, 204b, driving rope sheave 104, deflector sheave 105 and the counterweight hanging wheel 205 in turn from the 1st end 4a side.That is, car 3 and counterweight 107 are suspended in the hoistway 1 by the baudrier of main rope 4 with 2: 1.

The same with embodiment 1, a plurality of emergency braking devices 5 are housed in the bottom of car 3.Emergency braking device 5 is contained on the bottom (underframe) of car frame (not shown) of car 3.Erecting frame 201 further is positioned at the below of car frame.

Emergency braking device 5 carries out braking maneuver by the working signal (command signal) that directly or indirectly receives from efferent 200.As described in above-mentioned embodiment, efferent 200 is the moving of car 3 under the mistake speed, door open mode of test example such as car 3 electrically, and the abnormal elevator such as break of main rope 4, and the output services signal.

Figure 32 is the lateral plan that amplifies the car 3 among expression Figure 31.In the side of car 3, be provided with a pair of pulley 207.Be wound with a pair of cable 208 on the pulley 207 as the actuating force transfer unit.The 1st end 208a of cable 208 is connected with erecting frame 201.In addition, the 2nd end 208b of cable 208 is connected with emergency braking device 5.

Figure 33 is the front view of the emergency braking device 5 among expression Figure 32.The 2nd end 208b of cable 208 is connected with the wedge 19 as brake component.Cable 208 passes to wedge 19 with erecting frame 201 relative cars 3 to the displacement of leaving car 3 directions.The mechanical detection unit 209 of embodiment 17 has erecting frame 201, stop part 202, application of force unit 203 and cable 208.Other structure is identical with embodiment 1.

In this lift appliance, when normal operation, detect the unusual of elevator, when during to actuation part 20 output services signals, cutting off the energising to electromagnet 24 from efferent 200, as shown in figure 34, wedge 19 is moved upward by the relative car 3 of the application of force of spring 23.Like this, car 3 is braked.

At this moment, as shown in figure 34, relax because cable 208 produces, so cable 208 can not hinder the braking maneuver of wedge 19.

Here, for example when scheduled maintenance inspection efferent 200 or actuation part 20, under the situation that makes actuation part 20 akinesias, make the brake equipment action of actuating device 101, keep the halted state of car 3.But under this state, under the situation that main rope 4 breaks, impassabitity is braked car 3 from the working signal of efferent 200.

In this case, as shown in figure 35, utilize and draw wedge 19 on the cable 208, car 3 is braked.That is, just often, car 3 is being bearing in by stop part 202 on the erecting frame 201 that is provided with car hanging wheel 204a, 204b, but when main rope 4 breaks, and car 3 be can't help erecting frame 201 and supported.

Therefore, erecting frame 201 is pressed down to the direction of leaving car 3 (below) by application of force unit 203, and it is big that the interval between erecting frame 201 and the car 3 becomes.By cable 208 displacement of erecting frame 201 relative these cars 3 is passed to wedge 19, wedge 19 carries out braking maneuver.

At this moment, the magnetic attraction of electromagnet 24 is less than the application force of application of force unit 203, and under the situation that wedge 19 draws on by cable 208, electromagnet 24 is forced to be pulled away from permanent magnet 25, and the braking maneuver that can not hinder wedge 19.That is, actuation part 20 and mechanical detection unit 209 are separate, can not hinder action each other.

In this lift appliance,,, can brake car 3 according to working signal from efferent 200 just often more early stagely.In addition, even not under the state of actuation part 20 input service signals, even or under the situation of actuation part 20 akinesias, when main rope 4 breaks, can make wedge 19 carry out braking maneuver by mechanical detection unit 209.Like this, can improve reliability.

In addition, in embodiment 17, under the situation of the energising of electromagnet 24, wedge 19 carries out braking maneuver in cut-out.Therefore, when cutting off the energising to electromagnet 24 when having a power failure or during maintenance examination, wedge 19 all can carry out braking maneuver.Relative therewith, by using mechanical detection unit 209, can make brake component carry out braking maneuver by switching on to electromagnetic actuators.Under this situation, when having a power failure or during maintenance examination, the brake equipment braking of car driven device if take place unusually under this state, then makes brake component carry out braking maneuver by mechanical detection unit 209.

Embodiment 18

Next, Figure 36 is the lateral plan of car 3 of the lift appliance of expression embodiment of the present invention 18.In this example, cable 208 is connected between the wedge 19 and car hanging wheel 204a of emergency braking device 5.

Figure 37 is the front view of the car hanging wheel 204a among expression Figure 36.Car hanging wheel 204a relative rotation axi 211 can rotate freely.S. A. 211 is provided with ratchet 212 and take-up pulley 213.Ratchet 212 and take-up pulley 213 relative rotation axis 211 can rotate freely.

In addition, take-up pulley 213 rotates integratedly with ratchet 212.On take-up pulley 213, be wound with the 1st end 208a of cable 208.

On car hanging wheel 204a, be equipped with can swing the 1st and the 2nd fly the pendulum (flyweight) 214,215.Fly to put the 1st and the 2nd ratchet 216 is installed on 214,215.In addition, the 1st and the 2nd fly to put 214,215 and be connected to each other by pipe link 217.

The 1st fly to put 214 and car hanging wheel 204a between be provided with spring 218.In addition, the speed limiting mechanism of the mistake speed of detection car 3 has: ratchet 212 flies to put 214,215, ratchet 216, pipe link 217 and spring 218.

In addition, the mechanical detection unit 219 of embodiment 18 has: car hanging wheel 204a, and cable 208, S. A. 211, ratchet 212, take-up pulley 213 flies escapement 214,215, ratchet 216, pipe link 217 and spring 218.And the same with embodiment 17, actuation part 20 (Figure 33) and mechanical detection unit 219 are separate, can not hinder action each other.

In this lift appliance, car hanging wheel 204a, 204b are with the speed rotation corresponding to the running velocity of car 3.When car hanging wheel 204a rotates, fly to put 214,215 by swinging with the cooresponding centnifugal force antagonistic spring 218 of above-mentioned rotative speed.

When the descending speed of car 3 reached predefined mistake speed (for example about 1.4 of command speed times), ratchet 216 engaged with the tooth of ratchet 212, and ratchet 212 rotates with car hanging wheel 204a integratedly with take-up pulley 213.Like this, cable 208 is wound on the take-up pulley 213, and as shown in figure 35, wedge 19 is drawn on the cable 208, and car 3 is braked.

But if actuation part 20 regular events, wedge 19 is pushed away on the spring 23 before drawing on by cable 208 as shown in figure 34.Therefore, although the descending speed of car car 3 has reached the speed set, the upward pulling of 208 pairs of wedges 19 of cable but is to implement under the situation of actuation part 20 mal-functions.

In this lift appliance,, can car 3 be braked according to working signal from efferent 200 (Figure 31) just often more early stagely.In addition, even not under the situation of actuation part 20 input service signals, even or under the situation of actuation part 20 akinesias, when the descending speed of car 3 reached speed, can make wedge 19 carry out braking maneuver by mechanical detection unit 219.Like this, can improve reliability.

In addition, the same with embodiment 17, also can constitute by switching on and make brake component carry out braking maneuver to electromagnetic actuators.

Embodiment 19

Next, Figure 38 is the constructional drawing of the lift appliance of expression embodiment of the present invention 19.In the drawings, the erecting frame 201 that car hanging wheel 204a, 204b be installed is fixed on the bottom of car 3.On the support beam 206 on hoistway 1 top, velocity limiter 221 is housed.On the rope sheave 221a of velocity limiter 221, be wound with the overspeed governor 222 of ring-type.

The part of overspeed governor 222 is connected with car 3.Like this, overspeed governor 222 circulates along with the lifting of car 3.In addition, the rope sheave 221a of velocity limiter 221 rotates by the circulation of overspeed governor 222.

There is pair overspeed governor 222 to apply the tension wheel 223 of tension force in the suspention of the bottom of overspeed governor 222.Be provided with actuating force transfer unit 224 between the wedge 19 (Figure 33) of emergency braking device 5 and the overspeed governor 222.Actuating force transfer unit 224 for example comprises cable etc.

The mechanical detection unit 225 of embodiment 19 has velocity limiter 221, overspeed governor 222, tension wheel 223, and actuating force transfer unit 224.Other structure is identical with embodiment 17.

In addition, the same with embodiment 17, actuation part 20 (Figure 33) and mechanical detection unit 225 are separate, can not hinder action each other.

In this lift appliance, when the descending speed of car 3 reaches when setting speed, velocity limiter 221 stops the rotation rope sheave 221a, and stops the circulation of overspeed governor 222.Although overspeed governor 222 has stopped, when the further decline of car 3, as shown in Figure 5, by drawing wedge 19 on the actuating force transfer unit 224 so that car 3 is braked.

But if actuation part 20 regular events, wedge 19 is pushed away on the spring 23 before drawing on by actuating force transfer unit 224 as shown in figure 34.Therefore, although the descending speed of car car 3 has reached the speed set, the pulling of going up of 224 pairs of wedges 19 of actuating force transfer unit but is not implement under actuation part 20 has the situation of regular event.

Embodiment 20

Next, Figure 39 is the constructional drawing of the lift appliance of expression embodiment of the present invention 20.In the drawings, in the bottom of car 3 mechanical emergency braking device 241 is housed, this emergency braking device 241 carries out braking maneuver by the mechanical control power from overspeed governor 222.That is the common emergency braking device of emergency braking device 241 for not having actuation part of embodiment 20.

Near velocity limiter 221 or its, be provided with actuation part 242, this actuation part 242 receives the working signal from efferent 200 directly or indirectly, and clamps overspeed governor 222.

Velocity limiter 221 is provided with rope holding device 221b, and the descending speed that this rope holding device 221b mechanically detects car 3 has reached the speed set, and the circulation of overspeed governor 222 is stopped.The mechanical detection unit 243 of embodiment 20 has velocity limiter 221.

In this lift appliance, when car 3 descends, when detecting breaking or during the speed of mistake, to actuation part 242 input service signals, clamping overspeed governor 222 of main rope 4 by actuation part 242 from efferent 200.Like this, emergency braking device 241 carries out braking maneuver, and car 3 is braked.

In addition, even without to actuation part 242 input service signals, even or under the situation of actuation part 242 akinesias, also can detect speed by velocity limiter 221, utilize rope holding device 243 to clamp overspeed governors 222.Like this, also can make emergency braking device 241 carry out braking maneuver, car 3 is braked.

In this lift appliance,, can car 3 be braked according to working signal from efferent 200 just often more early stagely.In addition, even not under the state of actuation part 242 input service signals, even or when actuation part 242 akinesias, when the descending speed of car 3 reaches when setting speed, can make emergency braking device 241 carry out braking maneuver by velocity limiter 221.Like this, can improve reliability.

In addition, in embodiment 19,20, having represented the lift appliance of 2: 1 baudriers, but be not limited thereto, for example also can be 1: 1 baudrier.

Claims (4)

1. lift appliance comprises:

The car of lifting in hoistway;

Guide the car guide rail of above-mentioned car lifting;

Brake component, it is installed on the above-mentioned car, and by coming above-mentioned car is braked with above-mentioned car guide rail butt;

Efferent, it electrically detects the unusual of elevator, and is detecting output services signal when unusual;

Actuation part, its with from the working signal of above-mentioned efferent as input;

The mechanical detection unit, it mechanically detects the unusual of elevator, and actuating force is mechanically passed to above-mentioned brake component;

When working signal being input in the above-mentioned actuation part, above-mentioned brake component carries out braking maneuver, and, even without to above-mentioned actuation part input service signal, when detecting by above-mentioned mechanical detection unit when unusual, make above-mentioned brake component carry out braking maneuver by actuating force from above-mentioned mechanical detection unit.

2. lift appliance according to claim 1 is characterized in that,

Above-mentioned mechanical detection unit detects unusual as above-mentioned elevator of breaking of the main rope of the above-mentioned car of suspention.

3. lift appliance according to claim 2 is characterized in that,

Also have the car hanging wheel, it is arranged on the bottom of above-mentioned car, and is wound with above-mentioned main rope;

Above-mentioned mechanical detection unit has:

Erecting frame, it is arranged on above-mentioned car bottom, and above-mentioned car hanging wheel is installed;

Application of force unit, it is arranged between above-mentioned car and the above-mentioned erecting frame, is used for above-mentioned erecting frame to the direction application of force of leaving above-mentioned car;

Stop part, it is arranged between above-mentioned car and the above-mentioned erecting frame, and limits above-mentioned erecting frame relative to above-mentioned car moving to approaching above-mentioned car direction;

The actuating force transfer unit, it passes to above-mentioned brake component with the above-mentioned relatively car of above-mentioned erecting frame to the displacement of leaving above-mentioned car direction;

When above-mentioned main rope breaks, above-mentioned erecting frame is moved to the direction of leaving above-mentioned car by above-mentioned application of force unit.

4. lift appliance according to claim 1 is characterized in that,

The mistake speed that above-mentioned mechanical detection unit detects above-mentioned car is unusual as above-mentioned car.

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