CN102173358B - Elevator device - Google Patents

Abstract

The invention discloses an elevator device which comprises a lift car, a lift car position detection part, a lift car speed detection part, a lift car acceleration detection part, a storage part and an output part. The storage part is used for storing a lift car speed abnormal judgment standard and an acceleration abnormal judgment standard utilized as the abnormal judgment standard for the lift car acceleration, and the lift car speed abnormal judgment standard is set correspondingly to the lift car position and is the abnormal judgment standard for the lift car speed. The output part is electrically connected with the lift car position detection part, the lift car speed detection part and the lift car acceleration detection part, and is used for comparing the lift car speed abnormal judgment standard and the lift car acceleration abnormal judgment standard which are obtained from the storage part with the lift car speed and lift car acceleration calculated according to detection signals, and detecting whether the lift car speed and the lift car acceleration conditions are abnormal; and if the abnormal condition appears, the output part outputs work signals to at least one of a tractor used brake device and an emergency stop device.

Description

Lift appliance

The divisional application that the application is application number is 200910168369.2, the applying date is on May 31st, 2004, denomination of invention is the application for a patent for invention of " lift appliance ".

And the application for a patent for invention that application number is 200910168369.2 is application number be 200480030999.9(international application no is PCT/JP2004/007857), the applying date is on May 31st, 2004, denomination of invention is the application for a patent for invention of " lift appliance " divisional application.

Technical field

The present invention relates to a kind of lift appliance, it obtains position or the speed of car according to the information from sensor part, thus controls the running of car.

Background technology

Such as in existing lift appliance disclosed in No. 6-271236, Japanese Unexamined Patent Publication, by detecting the rotation of the roller be pressed against on guide rail, the position of the car obtained or speed.

But in this lift appliance, such as, due to the existence of the change of the apparent condition of guide rail, the joint of guide rail, and the reason such as the wearing and tearing of roller surfaces, roller produces small skidding relative to guide rail, causes the testing result of car position to produce error.In addition, due to adding up of this error, actual car position and the difference of testing result increase gradually.

Summary of the invention

The present invention proposes to solve the problem, and its object is to provides a kind of lift appliance, and it can obtain position or the speed of car more exactly.

A kind of lift appliance of the present invention, comprising:

The car be elevated in hoistway;

Car position test section, it is for detecting the position of described car;

Car speed test section, it is for detecting the speed of described car;

Car acceleration test section, it is for detecting the acceleration/accel of described car;

Storage part, it stores the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration as the abnormal judgment standard of the acceleration/accel about described car, and the position of described car speed exception judgment standard and described car sets accordingly, be the abnormal judgment standard of speed about described car; And

Efferent, itself and described car position test section, described car speed test section and the electrical connection of described car acceleration test section, to the abnormal judgment standard of described car speed obtained from described storage part and the abnormal judgment standard of described car acceleration, the speed of described car calculated with the input according to detection signal and the acceleration/accel of described car compare, the state detecting the speed of described car and the acceleration/accel of described car has without exception, when being judged as abnormal, this efferent is at least any one party output services signal in towing machine brake equipment and emergency braking device,

In the abnormal judgment standard of described car acceleration, be set with accordingly with the position of car respectively: normal acceleration test pattern, the acceleration/accel of car when being normal operation; First abnormal acceleration detection figure, has the value larger than normal acceleration test pattern; And the second abnormal acceleration detection figure, there is the value larger than the first abnormal acceleration detection figure,

When the car acceleration exceeding described second abnormal acceleration detection figure being detected, described efferent outputs to emergency braking device working signal, makes described emergency braking device action.

Lift appliance of the present invention comprises: the car be elevated in hoistway; Primary sensor portion, it is for generation of the main detection signal corresponding with the amount of movement of car; Control setup, it for obtaining car information according to main detection signal, and controls the running of car according to car information, above-mentioned car information comprise car location information and car speed information at least either party; Aiding sensors portion, it is for by detecting that car has arrived the reference position preset in hoistway, and produce auxiliary detection signal, control setup is revised car information according to auxiliary detection signal.

In addition, lift appliance of the present invention comprises: the car be elevated in hoistway; Primary sensor portion, it is for generation of the main detection signal corresponding with the amount of movement of car; Control setup, it for obtaining car information according to main detection signal, and controls the running of car according to car information, above-mentioned car information comprise car location information and car speed information at least either party; Aiding sensors portion, it, for by detecting that car has arrived the reference position preset in hoistway, produces auxiliary detection signal, and control setup monitors according to the error of auxiliary detection signal to car information.

Accompanying drawing explanation

Fig. 1 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 1.

Fig. 2 is the front view of the emergency braking device represented in Fig. 1.

The front view of state when Fig. 3 is the emergency braking device work represented in Fig. 2.

Fig. 4 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 2.

Fig. 5 is the front view of the emergency braking device represented in Fig. 4.

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

Fig. 7 is the front view of the drive division represented in Fig. 6.

Fig. 8 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 3.

Fig. 9 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 4.

Figure 10 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 5.

Figure 11 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 6.

Figure 12 is the constructional drawing of another example of the lift appliance represented in Figure 11.

Figure 13 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 7.

Figure 14 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 8.

Figure 15 is the front view of another example of the drive division represented in Fig. 7.

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

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

Figure 18 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 11.

Figure 19 is the diagram of curves of the abnormal judgment standard of the car speed represented in storage storage part in figure 18.

Figure 20 is the diagram of curves of the abnormal judgment standard of the car acceleration represented in storage storage part in figure 18.

Figure 21 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 12.

Figure 22 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 13.

Figure 23 is the constructional drawing representing rope fastening device in Figure 22 and each rope sensor.

Figure 24 is the constructional drawing of the state that the 1 main rope represented in Figure 23 breaks.

Figure 25 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 14.

Figure 26 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 15.

Figure 27 is the block diagram representing car in Figure 26 and door sensor.

Figure 28 is the block diagram of the open mode of the car gangway represented in Figure 27.

Figure 29 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 16.

Figure 30 is the constructional drawing of the hoistway overhead represented in Figure 29.

Figure 31 is the front view of the car of the lift appliance representing embodiment of the present invention 17.

Figure 32 is the lateral plan of the main portion in Watch with magnifier diagram 31.

Figure 33 is the constructional drawing of the lift appliance representing embodiment of the present invention 18.

Detailed description of the invention

Below, with reference to accompanying drawing, the preferred embodiment of the present invention is described.

Embodiment 1

Fig. 1 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 1.In the drawings, in hoistway 1, a pair car guide rail 2 is provided with.Car 3 is guided by car guide rail 2 and is elevated in hoistway 1.The towing machine (not shown) that car 3 and counterweight (not shown) are elevated is configured with in the upper end of hoistway 1.The driving rope sheave of towing machine is wound with main rope 4.Car 3 and counterweight are suspended in hoistway 1 by main rope 4.On car 3, a pair emergency braking device 5 that be provided with as brake unit opposed with each car guide rail 2.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.

Further, be configured with velocity limiter 6 in the upper end of hoistway 1, this velocity limiter 6 is the car speed detecting units detected the rising or falling speed of car 3.Velocity limiter 6 has: velocity limiter main body 7 and the governor sheave 8 that can rotate relative to velocity limiter main body 7.Rotatable tension wheel 9 is configured with in the bottom of hoistway 1.The overspeed governor 10 be connected with car 3 is wound with between governor sheave 8 and tension wheel 9.Moving back and forth towards above-below direction together with car 3 with the connecting portion of car 3 of overspeed governor 10.Like this, governor sheave 8 and tension wheel 9 rotate with the speed corresponding with the rising or falling speed of car 3.

When the rising or falling speed of car 3 reaches the first mistake speed preset, velocity limiter 6 makes the brake equipment action of towing machine.Further, be provided with the switch portion 11 as efferent in velocity limiter 6, when the descending speed of car 3 reaches excessively fast second mistake speed (setting speed) than first, this switch portion 11 outputs to emergency braking device 5 working signal.Switch portion 11 has contact portion 16, and this contact portion 16 is by overrunning bar and mechanically carry out opening and closing, and this pole-footing of overrunning moves according to the centnifugal force of the governor sheave 8 rotated.Contact portion 16 is electrically connected with battery 12 and control panel 13 respectively by feed cable 14 and connecting cable 15, even if this battery 12 is the uninterrupted power supply(ups)s also can powered when having a power failure, this control panel 13 controls the running of elevator.

Control cables (removal cable) is connected with between car 3 and control panel 13.In control cables, except many electric wireline and signal wire (SW), also containing the emergent stopping wiring 17 be connected electrically between control panel 13 and each emergency braking device 5.From electric power the closing by contact portion 16 of battery 12, be supplied to each emergency braking device 5 by the power supply circuit in feed cable 14, switch portion 11, connecting cable 15, control panel 13 and emergent stopping wiring 17.In addition, delivery unit has: the power supply circuit in connecting cable 15, control panel 13 and emergent stopping wiring 17.

Fig. 2 is the front view of the emergency braking device 5 represented in Fig. 1, the front view of the emergency braking device 5 when Fig. 3 is the work represented in Fig. 2.In the drawings, support unit 18 is fixed with in the bottom of car 3.Emergency braking device 5 is supported by support unit 18.Further, each emergency braking device 5 has: wedge 19, is can a pair brake component being contacting and separating of car guide rail 2 relatively; A pair actuation part 20, is connected with wedge 19, and wedge 19 is moved relative to car 3; And a pair guide part 21, be fixed on support unit 18, the wedge 19 by actuation part 20 movement is guided towards the direction contacted with car guide rail 2.A pair wedge 19, a pair actuation part 20 and a pair 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 relative to car guide rail 2, makes and the interval of car guide rail 2 diminishes up.Wedge 19 moves along dip plane 22.Actuation part 20 has: spring 23, is the force section to wedge 19 guide part 21 side force upward; And electromagnet 24, the force relying on the electromagnetic force caused by being energized to overcome spring 23 makes wedge 19 and guide part 21 move downward discretely.

Spring 23 is connected between support unit 18 and wedge 19.Electromagnet 24 is fixed on support unit 18.Emergent stopping wiring 17 is connected with electromagnet 24.Wedge 19 is fixed with the permanent magnet 25 opposed with electromagnet 24.The closed energising (with reference to Fig. 1) carried out to electromagnet 24 of contact portion 16 (with reference to Fig. 1) is passed through from battery 12.Cut off the energising to electromagnet 24 by break portion 16 (with reference to Fig. 1), make emergency braking device 5 action.That is, a pair wedge 19 relies on the elastic restoring force of spring 23 and to move upward relative to car 3 thus by being pressed on car guide rail 2.

Below, action is described.When normal operation, contact portion 16 closes.Like this, electric power is supplied to electromagnet 24 from battery 12.Wedge 19 by by being energized the electromagnetic attracting force that causes and remain on electromagnet 24, thus is separated (Fig. 2) with car guide rail 2.

When the fracture etc. such as due to main rope 4 makes the speed of car 3 rise and reaches the first mistake speed, the brake equipment action of towing machine.When after the brake equipment action at towing machine, when the speed of car 3 rises further and reaches the second mistake speed, contact portion 16 disconnects.Like this, the energising to the electromagnet 24 of each emergency braking device 5 is cut off, and wedge 19 relies on the force of spring 23 and moves upward relative to car 3.Now, wedge 19, while contacting with the dip plane 22 of guide part 21, moves along dip plane 22.Moved by this, wedge 19 contacts with car guide rail 2 and by being pressed on car guide rail 2.Wedge 19, by the contact with car guide rail 2, to move and engaging-in between car guide rail 2 and guide part 21 further upward.Like this, between car guide rail 2 and wedge 19, produce large friction force, thus car 3 is braked (Fig. 3).

When removing the braking of car 3, closing under the state of electromagnet 24 energising by contact portion 16, car 3 is made to increase.Like this, wedge 19 moves downward, is separated with car guide rail 2.

In this lift appliance, because the switch portion 11 that is connected with battery 12 and each emergency braking device 5 are electrically connected, thus the velocity anomaly of the car 3 detected by velocity limiter 6 can be sent to each emergency braking device 5 as electric working signal from switch portion 11, can after the velocity anomaly detecting car 3, in the short time, make car 3 brake.Like this, the stopping distance of car 3 can be reduced.And, easily can make the synchronous initiation of each emergency braking device 5, car 3 can be made stably to stop.Further, because emergency braking device 5 is according to electricity work signalizing activity, thus can prevent from the misoperation caused such as rocking by car 3.

Further, because emergency braking device 5 has: actuation part 20, wedge 19 guide part 21 side is upward moved; And guide part 21, comprise dip plane 22, the wedge 19 of movement upward guides towards the direction contacted with car guide rail 2 by this dip plane, thus when car 3 declines, reliably can increase the pressing force of wedge 19 pairs of car guide rails 2.

Further, because actuation part 20 has: spring 23, wedge 19 is exerted a force upward; And electromagnet 24, the force overcoming spring 23 makes wedge 19 move downward, thus can adopt simple structure that wedge 19 is moved.

Embodiment 2

Fig. 4 is the constructional drawing of the lift appliance schematically showing 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, opening and closing car gangway 26.In hoistway 1, be provided with car speed sensor 31, this car speed sensor 31 is the car speed detecting units detected the speed of car 3.In control panel 13, be provided with efferent 32, this efferent 32 is electrically connected with car speed sensor 31.Battery 12 is connected with efferent 32 by feed cable 14.Electric power for detecting the speed of car 3 is supplied to car speed sensor 31 from efferent 32.Speed detection signal from car speed sensor 31 is imported into efferent 32.

Be provided with a pair emergency braking device 33 in the bottom of car 3, this emergency braking device 33 is the brake units braked car 3.Efferent 32 and each emergency braking device 33 are electrically connected to each other by emergent stopping wiring 17.When the speed of car 3 is the second mistake speed, the working signal as starting electric power outputs to emergency braking device 33 from efferent 32.Emergency braking device 33 action according to the input of working signal.

Fig. 5 is the front view of the emergency braking device 33 represented in Fig. 4, the front view of the emergency braking device 33 when Fig. 6 is the work representing Fig. 5.In the drawings, emergency braking device 33 has: wedge 34, is the brake component that can be contacting and separating 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 car 3.Wedge 34 and actuation part 35 are arranged to can relative to guide part 36 up-and-down movement.Wedge 34, along with relative to guide part 36 movement upward, namely towards the movement of guide part 36 side, is guided towards the direction contacted with car guide rail 2 by guide part 36.

Actuation part 35 has: columned contact part 37, can be contacting and separating with car guide rail 2; Operating mechanism 38, makes contact part 37 move towards the direction be contacting and separating with car guide rail 2; And support 39, bearing contact portion 37 and operating mechanism 38.Contact part 37 is lighter than wedge 34, can easily be moved by operating mechanism 38.Operating mechanism 38 has: movable part 40, can move back and forth between the contact position making contact part 37 contact with car guide rail 2 and the disengaged position making contact part 37 be separated with car guide rail 2; And drive division 41, movable part 40 is moved.

Supporting pilot hole 42 and movable pilot hole 43 is respectively arranged with in support 39 and movable part 40.Supporting pilot hole 42 and movable pilot hole 43 different relative to the angle of inclination of car guide rail 2.Contact part 37 is slidably mounted in supporting pilot hole 42 and 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 is contacting and separating with suitable angle and car guide rail 2.When car 3 declines, when contact part 37 contacts with car guide rail 2, wedge 34 and actuation part 35 are braked, and move towards guide part 36 side.

The horizontally-guided hole 47 extended in the horizontal direction is provided with on the top of support 39.Wedge 34 is slidably mounted in horizontally-guided hole 47.That is, wedge 34 can move back and forth in the horizontal direction relative to support 39.

Guide part 36 has the dip plane 44 and contact surface 45 that clip car guide rail 2 configuration.Dip plane 44 tilts relative to car guide rail 2, makes and the interval of car guide rail 2 diminishes up.Contact surface 45 can be contacting and separating with car guide rail 2.Along with wedge 34 and actuation part 35 move upward relative to guide part 36, wedge 34 moves along dip plane 44.Like this, wedge 34 and contact surface 45 closely move, 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 represented in Fig. 6.In the drawings, drive division 41 has: disk spring 46, is mounted in the force section on movable part 40; And electromagnet 48, by making movable part 40 move by the electromagnetic force caused that is energized.

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 distortion that the force direction of disk spring 46 causes according to the movement because of movable part 40 and overturning between the contact position (solid line) and disengaged position (long and two-short dash line) of movable part 40.Movable part 40 remains on contact position and disengaged position respectively by the force of disk spring 46.That is, the contact condition of contact part 37 and car guide rail 2 and released state rely on the force of disk spring 46 to keep.

Electromagnet 48 has: the first electromagnetism portion 49, is fixed on movable part 40; And the second electromagnetism portion 50, arranged opposite with the first electromagnetism portion 49.Movable part 40 can move relative to the second electromagnetism portion 50.Emergent stopping wiring 17 is connected with electromagnet 48.First electromagnetism portion 49 and the second electromagnetism portion 50 are by producing electromagnetic force to electromagnet 48 input service signal, mutually repel.That is, by electromagnet 48 input service signal, the first electromagnetism portion 49 and movable part 40 move towards the direction be separated with the second electromagnetism portion 50 together.

In addition, the restoring signal of the recovery of efferent 32 when recovering after the action of output emergency braking device 5.By inputting restoring signal to electromagnet 48, the first electromagnetism portion 49 and the second electromagnetism portion 50 attract each other.Other structure is identical with embodiment 1.

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

When the speed that car speed sensor 31 detects reaches the first mistake speed, the brake equipment action of towing machine.Afterwards, when the speed of car 3 rises and reaches the second mistake speed by the speed that car speed sensor 32 detects, working signal outputs to each emergency braking device 33 from efferent 32.By to electromagnet 48 input service signal, the first electromagnetism portion 49 and the second 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 contacted with car guide rail 2.Before movable part 40 arrives contact position, the force direction of disk spring 46 is the direction keeping movable part 40 in contact position upset.Like this, contact part 37 contacts and presses car guide rail 2, and brakes wedge 34 and actuation part 35.

Because car 3 and guide part 36 do not decline with being braked, thus guide part 36 wedge 34 downward and actuation part 35 side are moved.Because this moves, wedge 34 is guided by along dip plane 44, and car guide rail 2 is clamped by wedge 34 and contact surface 45.Wedge 34, by the contact with car guide rail 2, moves further upward, and engaging-in between car guide rail 2 and dip plane 44.Like this, between car guide rail 2 and wedge 34 and between car guide rail 2 and contact surface 45, produce large friction force, thus car 3 is braked.

When recovering, restoring signal is sent to electromagnet 48 from efferent 32.Like this, the first electromagnetism portion 49 and the second electromagnetism portion 50 attract each other, and movable part 40 moves towards disengaged position.Meanwhile, contact part 37 moves towards the direction be separated with car guide rail 2.Before movable part 40 arrives disengaged position, the force direction upset of disk spring 46, movable part 40 is maintained at disengaged position.In this condition, car 3 rises, and the pressing of wedge 34 and contact surface 45 pairs of car guide rails 2 is removed.

In this lift appliance, owing to not only obtaining the effect identical with embodiment 1, and car speed sensor 31 is set in hoistway 1 due to the speed in order to detect car 3, thus do not need to use velocity limiter and overspeed governor, the installing space of lift appliance entirety can be reduced.

Further, because actuation part 35 has: contact part 37, can be contacting and separating with car guide rail 2; And operating mechanism 38, contact part 37 is moved towards the direction be contacting and separating with car guide rail 2, thus, by making the weight ratio wedge 34 of contact part 37 light, the propulsive effort of operating mechanism's 38 pairs of contact parts 37 can be reduced, operating mechanism 38 miniaturization can be made.And, by making contact part 37 light weight, the moving velocity of contact part 37 can be increased, the time produced needed for braking force can be shortened.

Further, because drive division 41 has: disk spring 46, movable part 40 is remained on contact position and disengaged position; And electromagnet 48, by energising, movable part 40 being moved, thus, by being only energized to electromagnet 48 when movable part 40 moves, movable part 40 reliably being remained on contact position or disengaged position.

Embodiment 3

Fig. 8 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 3.In the drawings, car gangway 26 is provided with an opening and closing sensor 58, this opening and closing sensor 58 is the door opening and closing detecting units detected the open and-shut mode of gate 28.The efferent 59 be arranged on control panel 13 is connected with door opening and closing sensor 58 by control cables.Further, car speed sensor 31 is electrically connected with efferent 59.From the speed detection signal of car speed sensor 31 be imported into efferent 59 from the opening and closing detection signal of door opening and closing sensor 58.At efferent 59, by input speed detection signal and opening and closing detection signal, the speed of car 3 and the open and-shut mode of car gangway 26 can be held.

Efferent 59 is connected with emergency braking device 33 by emergent stopping wiring 17.Efferent 59 according to from the speed detection signal of car speed sensor 31 and the opening and closing detection signal from door opening and closing sensor 58, under the state that car gangway 26 is opened, the output services signal when car 3 is elevated.Working signal is sent to emergency braking device 33 by emergent stopping wiring 17.Other structure is identical with embodiment 2.

In this lift appliance, due to the car speed sensor 31 that detects the speed of car 3 and be electrically connected with efferent 59 the door opening and closing sensor 58 that the open and-shut mode of gate 28 detects, and under the state that car gangway 26 is opened, when car 3 declines, working signal outputs to emergency braking device 33 from efferent 59, thus can prevent car 3 from declining under the open mode of car gangway 26.

In addition, emergency braking device 33 can also be arranged on car 3 upside down.Like this, also can prevent car 3 from rising under the open mode of car gangway 26.

Embodiment 4

Fig. 9 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 4.In the drawings, run through in main rope 4 and be inserted with fracture detection wire 61, it is the cord break detecting units detected the fracture of main rope 4 that this fracture detects wire 61.Detecting in wire 61 in fracture has weak current to flow through.Main rope 4 detects according to the energising with or without weak current with or without fracture.The efferent 62 be arranged on control panel 13 detects wire 61 with fracture and is electrically connected.When the detection wire 61 that ruptures ruptures, the cord break signal detecting the energising shutoff signal of wire 61 as fracture is imported into efferent 62.Further, car speed sensor 31 is electrically connected with efferent 62.

Efferent 62 is connected with emergency braking device 33 by emergent stopping wiring 17.Efferent 62 is according to the speed detection signal from car speed sensor 31 and detect the cord break signal of wire 61, the output services signal when main rope 4 ruptures from fracture.Working signal is sent to emergency braking device 33 by emergent stopping wiring 17.Other structure is identical with embodiment 2.

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

In addition, in the examples described above, as cord break method of inspection, use and wire 61 is detected with or without the method that detects of being energized to the fracture running through insertion in main rope 4, but also can use method for measuring is carried out to the tension variation of such as main rope 4.In the case, the rope fastening device of main rope 4 arranges tension draftomter.

Embodiment 5

Figure 10 is the constructional drawing of the lift appliance schematically showing 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 the car position detecting units detected the position of car 3.Car position sensor 65 and car speed sensor 31 are electrically connected with the efferent 66 be arranged on control panel 13.Efferent 66 has storage part 67, and this storage part 67 stores control figure, position, speed, the acceleration-deceleration of the car 3 when this control figure comprises normal operation and stop the information such as floor.From the speed detection signal of car speed sensor 31 and be imported into efferent 66 from the cage position signal of car position sensor 65.

Efferent 66 is connected with emergency braking device 33 by emergent stopping wiring 17.At efferent 66, the speed of the car 3 based on speed detection signal and cage position signal and position (measured value) are compared with based on the speed of the car 3 of the control figure be stored in storage part 67 and position (setting value).When the deviation of measured value and setting value exceedes defined threshold, efferent 66 outputs to emergency braking device 33 working signal.Herein, defined threshold refers to the deviation of MIN measured value and the setting value of not colliding with the end of hoistway 1 for making car 3 be stopped by normal brake application.Other structure is identical with embodiment 2.

In this lift appliance, due to when the deviation from the measured value of car speed sensor 31 and car position sensor 65 and the setting value of control figure exceedes defined threshold, efferent 66 output services signal, thus can prevent car 3 from colliding with the end of hoistway 1.

Embodiment 6

Figure 11 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 6.In the drawings, be configured with in hoistway 1: upper car 71 is first cars; And lower car 72, be the second car of the below being positioned at car 71.Upper car 71 and lower car 72 are guided by car guide rail 2 and are elevated in hoistway 1.Upper end in hoistway 1 is provided with: the first towing machine (not shown), makes car 71 and upper car counterweight (not shown) lifting; And second towing machine (not shown), make lower car 72 and lower car counterweight (not shown) lifting.The driving rope sheave of the first towing machine is wound with the first main rope (not shown), the driving rope sheave of the second towing machine is wound with the second main rope (not shown).Upper car 71 and upper car counterweight are by the first main rope hanging, and lower car 72 and lower car counterweight are by the second main rope hanging.

In hoistway 1, be provided with car speed sensor 73 and lower car speed sensor 74, on this, car speed sensor 73 and lower car speed sensor 74 are the car speed detecting units detected the speed of upper car 71 and the speed of lower car 72.And, in hoistway 1, be provided with car position sensor 75 and lower car position sensor 76, on this, car position sensor 75 and lower car position sensor 76 are the car position detecting units detected the position of upper car 71 and the position of lower car 72.

In addition, car motion detection unit has: upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76.

Be provided with car emergency braking device 77 in the bottom of upper car 71, on this, car emergency braking device 77 has the brake unit with emergency braking device 33 same structure used in embodiment 2.Be provided with lower car emergency braking device 78 in the bottom of lower car 72, this lower car emergency braking device 78 has the brake unit with upper car emergency braking device 77 same structure.

Efferent 79 is installed in control panel 13.Upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76 are electrically connected with efferent 79.Further, battery 12 is connected with efferent 79 by feed cable 14.Upper car speed detection signal from upper car speed sensor 73, the lower car speed detection signal from lower car speed sensor 74, the upper car position detection signal from upper car position sensor 75 and the lower car position detection signal from lower car position sensor 76 are imported into efferent 79.That is, the information from car motion detection unit is imported into efferent 79.

Efferent 79 is connected with upper car emergency braking device 77 and lower car emergency braking device 78 by emergent stopping wiring 17.And, efferent 79 is according to the information from car motion detection unit, collisionless and upper car 71 and lower car 72 is had to have collisionless to predict to the end of upper car 71 or lower car 72 and hoistway 1, when doping collision, working signal is outputted to upper car emergency braking device 77 and lower car emergency braking device 78.Upper car emergency braking device 77 and the action according to the input of working signal of lower car emergency braking device 78.

In addition, monitoring unit has car motion detection unit and efferent 79.The running state of upper car 71 and lower car 72 is monitored by monitoring unit.Other structure is identical with embodiment 2.

Below, action is described.At efferent 79, by inputting the information from car motion detection unit to efferent 79, collisionless and upper car 71 and lower car 72 is had to have collisionless to predict to the end of upper car 71 or lower car 72 and hoistway 1.Such as when efferent 79 according to the fracture prediction of the first main rope of the upper car 71 of suspention go out upper car 71 and lower car 72 collide time, from efferent 79, working signal is outputted to upper car emergency braking device 77 and lower car emergency braking device 78.Like this, make car emergency braking device 77 and the action of lower car emergency braking device 78, upper car 71 and lower car 72 are braked.

In this lift appliance, because monitoring unit has: car motion detection unit, the upper car 71 of lifting in same hoistway 1 and the respective actual act of lower car 72 are detected; And efferent 79, collisionless is had to predict according to the information from car motion detection unit to upper car 71 and lower car 72, when doping collision, working signal is outputted to upper car emergency braking device 77 and lower car emergency braking device 78, thus, even if upper car 71 and the respective speed of lower car 72 do not reach the speed of setting, when doping upper car 71 and lower car 72 collides, also can make car emergency braking device 77 and the action of lower car emergency braking device 78, car 71 and lower car 72 can be avoided to collide.

And, because car motion detection unit has upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76, thus, simple structure can be adopted easily to detect car 71 and the respective actual act of lower car 72.

In addition, in the examples described above, efferent 79 is arranged in control panel 13, but also efferent 79 can be arranged on upper car 71 and lower car 72 respectively.In the case, as shown in figure 12, upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76 are electrically connected respectively with the efferent 79 be arranged on upper car 71 and efferent 79 both sides be arranged on lower car 72.

And, in the examples described above, efferent 79 outputs to upper car emergency braking device 77 and lower car emergency braking device 78 both sides working signal, but also according to the information from car motion detection unit, working signal can only be outputted in upper car emergency braking device 77 and lower car emergency braking device 78.In the case, at efferent 79, there is collisionless to predict to upper car 71 and lower car 72, and have upper car 71 and the respective action of lower car 72 and without exceptionly to judge.Working signal only outputs to from efferent 79 emergency braking device being arranged on upper car 71 and lower car 72 and carrying out on anomalous behavior one side.

Embodiment 7

Figure 13 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 7.In the drawings, upper car 71 is provided with the upper car efferent 81 as efferent, lower car 72 is provided with the lower car efferent 82 as efferent.Upper car speed sensor 73, upper car position sensor 75 and lower car position sensor 76 are electrically connected with upper car efferent 81.Lower car speed sensor 74, lower car position sensor 76 and upper car position sensor 75 are electrically connected with lower car efferent 82.

Upper car efferent 81 is electrically connected with upper car emergency braking device 77 by upper car emergent stopping wiring 83, and on this, car emergent stopping wiring 83 is arranged on the delivery unit on car 71.And, upper car efferent 81 is according to from the respective information of upper car speed sensor 73, upper car position sensor 75 and lower car position sensor 76 (being called in the present embodiment below " upper car Detection Information "), collisionless is had to predict upper car 71 with lower car 72, when doping collision, working signal is outputted to upper car emergency braking device 77.And when have input upper car Detection Information, upper car efferent 81 supposes that lower car 72 runs car 71 side with maximum speed during normal operation upward, has collisionless to predict upper car 71 with lower car 72.

Lower car efferent 82 is electrically connected with lower car emergency braking device 78 by lower car emergent stopping wiring 84, and this lower car emergent stopping wiring 84 is arranged on the delivery unit on lower car 72.And, lower car efferent 82 is according to the information (being called in the present embodiment below " lower car Detection Information ") respectively from lower car speed sensor 74, lower car position sensor 76 and upper car position sensor 75, collisionless is had to predict lower car 72 with upper car 71, when doping collision, working signal is outputted to lower car emergency braking device 78.And when have input lower car Detection Information, lower car efferent 82 supposes that upper car 71 runs car 72 side with maximum speed during normal operation down, has collisionless to predict lower car 72 with upper car 71.

Usually, in order to make upper car emergency braking device 77 and lower car emergency braking device 78 be failure to actuate, upper car 71 and lower car 72 are spaced from each other abundant interval and carry out running control.Other structure is identical with embodiment 6.

Below, action is described.Such as when the first main rope owing to suspending upper car 71 in midair fracture and upper car 71 is fallen car 72 side down, when upper car 71 is close to lower car 72, upper car efferent 81 dopes the collision of car 71 and lower car 72, and lower car efferent 82 dopes the collision of car 71 and lower car 72.Like this, working signal outputs to upper car emergency braking device 77 from upper car efferent 81, and working signal outputs to lower car emergency braking device 78 from lower car efferent 82.Like this, make car emergency braking device 77 and the action of lower car emergency braking device 78, upper car 71 and lower car 72 are braked.

In this lift appliance, owing to not only obtaining the effect identical with embodiment 6, and be only electrically connected with upper car efferent 81 due to upper car speed sensor 73, lower car speed sensor 74 is only electrically connected with lower car efferent 82, thus, do not need to arrange electric wiring between upper car speed sensor 73 and lower car efferent 82 and between lower car speed sensor 74 and upper car efferent 81, what can simplify electric wiring arranges operation.

Embodiment 8

Figure 14 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 8.In the drawings, upper car 71 and lower car 72 are provided with inter-car distance from sensor 91, this inter-car distance is that the inter-car distance that detects the distance between upper car 71 and lower car 72 is from detecting unit from sensor 91.Inter-car distance has from sensor 91: laser irradiating part, is arranged on car 71; And reflecting part, be arranged on lower car 72.Distance between upper car 71 and lower car 72 is obtained from the reciprocal time of sensor 91 according to the laser between laser irradiating part and reflecting part by inter-car distance.

Upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and inter-car distance are electrically connected from sensor 91 with upper car efferent 81.Upper car speed sensor 73, lower car speed sensor 74, lower car position sensor 76 and inter-car distance are electrically connected from sensor 91 with lower car efferent 82.

Upper car efferent 81 is according to respectively from upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and the inter-car distance information (be called in the present embodiment below " upper car Detection Information ") from sensor 91, collisionless is had to predict upper car 71 with lower car 72, when doping collision, working signal is outputted to upper car emergency braking device 77.

Lower car efferent 82 is according to respectively from upper car speed sensor 73, lower car speed sensor 74, lower car position sensor 76 and the inter-car distance information (being called in the present embodiment below " lower car Detection Information ") from sensor 91, collisionless is had to predict lower car 72 with upper car 71, when doping collision, working signal is outputted to lower car emergency braking device 78.Other structure is identical with embodiment 7.

In this lift appliance, because efferent 79 has collisionless to predict from the information of sensor 91 to upper car 71 and lower car 72 according to from inter-car distance, thus can predict that car 71 and lower car 72 have collisionless more reliably.

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

Further, in above-mentioned embodiment 2 to 8, drive division utilizes the electromagnetic repulsive force in the first electromagnetism portion 49 and the second electromagnetism portion 50 or electromagnetic attraction to drive, but the vortex flow such as produced in electric conductivity repulsion plate also can be utilized to drive.In the case, as shown in figure 15, the pulse current as working signal is supplied to electromagnet 48, and utilize the interaction in the vortex flow of generation and the magnetic field from electromagnet 48 in repulsion plate 51 fixing on movable part 40, movable part 40 moves.

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

Embodiment 9

Figure 16 is the plane cross sectional drawing of the emergency braking device representing 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 car 3.Actuation part 156 can relative to guide part 36 up-and-down movement together with wedge 34.

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

Each linkage component 158a, 158b intersect mutually in the part from an end to the other end.Further, support 160 is provided with link 161, this link 161 can make each linkage component 158a, 158b rotate in the cross one another part of each linkage component 158a, 158b.And a linkage component 158a is arranged to rotate centered by connecting portion 161 relative to another linkage component 158b.

By making each the other end of linkage component 158a, 158b move towards direction close to each other, each contact part 157 moves towards the direction contacted with car guide rail 2 respectively.Further, by making each the other end of linkage component 158a, 158b move towards the direction be separated from each other, each contact part 157 moves towards the direction be separated with car guide rail 2 respectively.

Operating mechanism 159 is configured between each the other end of linkage component 158a, 158b.Further, operating mechanism 159 is supported by each linkage component 158a, 158b.And operating mechanism 159 has: shaft-like movable part 162, be 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 rotate together with each linkage component 158a, 158b centered by link 161.

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

Drive division 163 has: secured core 166, comprise restriction movable core 164 movement a pair limiting unit 166a, 166b and by interconnective to each limiting unit 166a, 166b sidewall portion 166c, and around movable core 164; First coil 167, is housed in secured core 166, by energising, movable core 164 is moved towards the direction contacted with a limiting unit 166a; Second coil 168, is housed in secured core 166, by energising, movable core 164 is moved towards the direction contacted with another limiting unit 166b; And annular permanent magnnet 169, be configured between the first coil 167 and the second coil 168.

A limiting unit 166a is configured to, and abuts with movable core 164 when movable part 162 is at disengaged position.Further, another limiting unit 166b is configured to, and abuts with movable core 164 when movable part 162 is at contact position.

First coil 167 and the second coil 168 are the annular electromagnetic coils surrounding movable part 162.Further, the first coil 167 is configured between permanent magnet 169 and a limiting unit 166a, and the second coil 168 is configured between permanent magnet 169 and another limiting unit 166b.

Under the state that movable core 164 abuts with a limiting unit 166a, because the space becoming magnetic resistance is present between movable core 164 and another limiting unit 166b, thus the magnetic flow of permanent magnet 169 is more than the second coil 168 side in the first coil 167 side, and movable core 164 is kept under the state abutted with a limiting unit 166a.

And, under the state that movable core 164 abuts with another limiting unit 166b, because the space becoming magnetic resistance is present between movable core 164 and a limiting unit 166a, thus the magnetic flow of permanent magnet 169 is more than the first coil 167 side in the second coil 168 side, under movable core 164 still remains on the state abutted with another limiting unit 166b.

Electric power as the working signal from efferent 32 is imported into the second coil 168.Further, the second coil 168, due to the input of working signal, produces the magnetic flux of the power that opposing keeps movable core 164 to abut with a limiting unit 166a.Further, the electric power as the restoring signal from efferent 32 is imported into the first coil 167.Further, the first coil 167, due to the input of restoring signal, produces the magnetic flux of the power that opposing keeps movable core 164 to abut with another limiting unit 166b.

Other structure is identical with embodiment 2.

Below, action is described.When normal operation, movable part 162 is positioned at disengaged position, and movable core 164 is abutted with a limiting unit 166a by the confining force of permanent magnet 169.Under the state that movable core 164 abuts with a limiting unit 166a, the interval of wedge 34 maintenance and guide part 36, is separated with car guide rail 2.

Afterwards, the same with embodiment 2, by working signal is outputted to each emergency braking device 155 from efferent 32, be energized to the second coil 168.Like this, generation magnetic flux around the second coil 168, movable core 164 moves towards the direction close with another limiting unit 166b, moves from disengaged position to contact position.Now, each contact part 157 moves towards direction close to each other, contacts with car guide rail 2.Like this, wedge 34 and actuation part 155 are braked.

Afterwards, guide part 36 continue decline, with wedge 34 and actuation part 155 close.Like this, wedge 34 is guided by along dip plane 44, and car guide rail 2 is clamped by wedge 34 and contact surface 45.Afterwards, action the same as embodiment 2, brakes car 3.

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

In this lift appliance, because operating mechanism 159 makes a pair contact part 157 move by each linkage component 158a, 158b, thus, not only obtain the effect identical with embodiment 2, and the quantity of the operating mechanism 159 for making the movement of a pair contact part 157 can be reduced.

Embodiment 10

Figure 17 is the partial cross sectional side elevation view of the emergency braking device representing 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 car 3.

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

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

Linkage component 177 have with anchor shaft 180 be starting point respectively towards the first connecting rod portion 178 that different directions extends and second connecting rod portion 179, as the global shape of linkage component 177, be roughly へ shape.That is, second connecting rod portion 179 is fixed in first connecting rod portion 178, and first connecting rod portion 178 and second connecting rod portion 179 can rotate integrally centered by anchor shaft 180.

The length in first connecting rod portion 178 is longer than the length in second connecting rod portion 179.Further, the terminal part in first connecting rod portion 178 is provided with elongated hole 182.Be fixed with in the bottom of wedge 34 slidably by the sliding pin 183 of elongated hole 182.That is, wedge 34 is connected with the terminal part in first connecting rod portion 178 slidably.The terminal part of movable part 162 is rotatably connected with the terminal part in second connecting rod portion 179 by connecting pin 181.

Linkage component 177 and can make to move back and forth between the engaging-in actuated position between car guide rail and guide part 36 of wedge 34 at the disengaged position making wedge 34 be separated in the below of guide part 36.When linkage component 177 is at disengaged position, movable part 162 is given prominence to from drive division 163, and when linkage component 177 is 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 because movable part 162 retreats towards drive division 163.Now, the interval of wedge 34 maintenance and guide part 36, is separated 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 rotates centered by anchor shaft 180, thus 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.

Recover time, restoring signal is sent to emergency braking device 175 from efferent 32, movable part 162 moved backward direction force.In this condition, make car 3 increase, remove engaging-in towards between guide part 36 and car guide rail of wedge 34.

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

Embodiment 11

Figure 18 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 11.In the drawings, being provided with at hoistway 1 internal upper part: towing machine 101, is actuating device; And control panel 102, be electrically connected with towing machine 101, control the running of elevator.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 rotated by actuating device main body 103.Towing machine 101 is provided with: deflector sheave 105, is wound with each main rope 4; And towing machine brake equipment (deceleration brake equipment) 106, be to the brake unit driving the rotation of rope sheave 104 to brake in order to make car 3 slow down.Car 3 and counterweight 107 are suspended in hoistway 1 by each main rope.Car 3 and counterweight 107 are elevated in hoistway 1 by the driving of towing machine 101.

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

In addition, have the detecting unit 112 that state of elevator detects: car position sensor 109, car speed sensor 110 and car acceleration sensor 111.Further, as car position sensor 109, can enumerate with lower component etc.: coder, by measuring to the rotation amount of the movement and the swivel rotated of following car 3 position detecting car 3; Linear encoder, detects the position of car 3 by the amount of movement measuring straight-line motion; Or optical displacement analyzer, has the reflecting plate being such as arranged on light projector in hoistway 1 and light-receiving device and being arranged in car 3, by measuring to light-receiving device light institute spended time the position detecting car 3 to from light projector light projector.

Monitor unit 108 has: storage part 113, is previously stored with and becomes for judging that elevator has multiple (in this example being 2 kinds) abnormal judgment standard (setting data) of N/R benchmark; And efferent (operational part) 114, detecting elevator according to detecting unit 112 and the respective information of storage part 113 has without exception.In this embodiment, store in storage part 113: the abnormal judgment standard of car speed is the abnormal judgment standard of the speed to car 3; And the abnormal judgment standard of car acceleration, be the abnormal judgment standard of the acceleration/accel to car 3.

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

In the abnormal judgment standard of car speed, correspondingly with the position of car 3 be set with 3 grades of test pattern.That is, in the abnormal judgment standard of car speed, be set with accordingly with the position of car 3 respectively: normal speed test pattern (normal level) 115, the speed of the car 3 when being normal operation; First abnormal speed test pattern (the first abnormal level) 116, has the value larger than normal speed test pattern 115; And the second abnormal speed test pattern (the second abnormal level) 117, there is the value larger than the first abnormal speed test pattern 116.

It is steady state value that normal speed test pattern 115, first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 are set to respectively in constant speed interval, reduces continuously to terminating layer in acceleration and deceleration interval.Further, the difference of the first abnormal speed test pattern 116 and normal speed test pattern 115 and the difference of the second abnormal speed test pattern 117 and the first abnormal speed test pattern 116 are not set at the interval all positions constant of lifting.

Figure 20 is the diagram of curves representing the abnormal judgment standard of the car acceleration be stored in the storage part 113 of Figure 18.In the drawings, in the abnormal judgment standard of car acceleration, 3 grades of test pattern are set with accordingly with the position of car 3.That is, in the abnormal judgment standard of car acceleration, be set with accordingly with the position of car 3 respectively: normal acceleration test pattern (normal level) 118, the acceleration/accel of the car 3 when being normal operation; First abnormal acceleration detection figure (the first abnormal level) 119, has the value larger than normal acceleration test pattern 118; And the second abnormal acceleration detection figure (the second abnormal level) 120, there is the value larger than the first abnormal acceleration detection figure 119.

The abnormal acceleration detection figure 119 of normal acceleration test pattern 118, first and the second abnormal acceleration detection figure 120 to be set in constant speed interval as null value respectively, in an acceleration and deceleration interval be on the occasion of, be negative value in another acceleration and deceleration interval.Further, the difference of the first abnormal acceleration detection figure 119 and normal acceleration test pattern 118 and the difference of the second abnormal acceleration detection figure 120 and the first abnormal acceleration detection figure 119 are not set at the interval all positions constant of lifting.

Namely, in storage part 113, store normal speed test pattern 115, first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 as the abnormal judgment standard of car speed, store normal acceleration test pattern 118, first abnormal acceleration detection figure 119 and the second abnormal acceleration detection figure 120 as the abnormal judgment standard of car acceleration.

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

When the speed of car 3 is more than the first abnormal speed test pattern 116, or when the acceleration/accel of car 3 is more than the first abnormal acceleration detection figure 119, efferent 114 outputs to towing machine brake equipment 106 working signal (energizing signal).Further, efferent 114, while working signal is outputted to towing machine brake equipment 106, drives the danger signal of towing machine 101 to output to control panel 102 for stopping.And, when the speed of car 3 is more than the second abnormal speed test pattern 117, or when the acceleration/accel of car 3 is more than the second abnormal acceleration detection figure 120, efferent 114 outputs to towing machine brake equipment 106 and emergency braking device 33 working signal.That is, the speed of efferent 114 according to car 3 and the intensity of anomaly of acceleration/accel, determine the brake unit of output services signal.

Other structure is identical with embodiment 2.

Below, action is described.When the position detection signal from car position sensor 109, the speed detection signal from car speed sensor 110 and the acceleration detection signal from car acceleration sensor 111 are imported into efferent 114, at efferent 114, according to the input of each detection signal, calculate the position of car 3, speed and acceleration/accel.Afterwards, at efferent 114, the speed of abnormal for the car speed that obtains respectively from storage part 113 judgment standard and the abnormal judgment standard of car acceleration and the car 3 calculated according to the input of each detection signal and acceleration/accel are compared, has without exception detection separately to the speed of car 3 and acceleration/accel.

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

Rise when such as making the velocity anomaly of car 3 for a certain reason and more than the first abnormal speed test pattern 116, detect that the speed of car 3 has exception at efferent 114, 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 being stopped, and make towing machine brake equipment 106 action, braking driving the rotation of rope sheave 104.

And, when the acceleration/accel of car 3 abnormal rise and more than the first abnormal acceleration/accel setting value 119, working signal and danger signal output to towing machine brake equipment 106 and control panel 102 respectively from efferent 114, brake driving the rotation of rope sheave 104.

After towing machine starts with brake equipment 106, when the speed of car 3 rise further and more than the second abnormal speed setting value 117, maintaining under the state that working signal is outputted to towing machine brake equipment 106, 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 action, when the acceleration/accel of car 3 rise further and more than the second abnormal acceleration/accel setting value 120, maintaining under the state that working signal is outputted to towing machine brake equipment 106, working signal is outputted to emergency braking device 33 from efferent 114, makes emergency braking device 33 action.

In this lift appliance, because monitor unit 108 obtains the speed of car 3 and the acceleration/accel of car 3 according to the information from the detecting unit 112 detected state of elevator, when the speed of car 3 acquired by judging and the exception of any one party in the acceleration/accel of car 3, working signal is outputted at least any one party in towing machine brake equipment 106 and emergency braking device 33, thus, can make the detection of monitor unit 108 pairs of abnormal elevators more early and more reliably, can shorten further from abnormal elevator occurring to producing the time needed for the braking force of car 3.Namely, without exceptionly individually to be judged by monitor unit 108 because the speed of car 3 and such multiple abnormal of the acceleration/accel of car 3 judge that key element has, thus, can make the detection of monitor unit 108 pairs of abnormal elevators more early and more reliably, can shorten from abnormal elevator occurring to producing the time needed for the braking force of car 3.

And, because monitor unit 108 has storage part 113, this storage part 113 stores for judging that the speed of car 3 has the abnormal judgment standard of N/R car speed and for judging that the acceleration/accel of car 3 has the abnormal judgment standard of N/R car acceleration, thus, speed and the acceleration/accel that easily can change car 3 have N/R judgment standard separately, easily can tackle the design modification etc. of elevator.

Further, owing to being set with in the abnormal judgment standard of car speed: normal speed test pattern 115; First abnormal speed test pattern 116, has the value larger than normal speed test pattern 115; And the second abnormal speed test pattern 117, there is the value larger than the first abnormal speed test pattern 116, and when the speed of car 3 is more than the first abnormal speed test pattern 116, working signal outputs to towing machine brake equipment 106 from monitor unit 108, when the speed of car 3 is more than the second abnormal speed test pattern 117, working signal outputs to towing machine brake equipment 106 and emergency braking device 33 from monitor unit 108, thus, stage braking can be carried out according to the velocity anomaly size of car 3 to car 3.Therefore, the frequency applying large impact to car 3 can be reduced, and car 3 can be made to stop more reliably.

Further, owing to being set with in the abnormal judgment standard of car acceleration: normal acceleration test pattern 118; First abnormal acceleration detection figure 119, has the value larger than normal acceleration test pattern 118; And the second abnormal acceleration detection figure 120, there is the value larger than the first abnormal acceleration detection figure 119, and when the acceleration/accel of car 3 is more than the first abnormal acceleration detection figure 119, working signal outputs to towing machine brake equipment 106 from monitor unit 108, when the acceleration/accel of car 3 is more than the second abnormal acceleration detection figure 120, working signal outputs to towing machine brake equipment 106 and emergency braking device 33 from monitor unit 108, thus, stage braking can be carried out according to the abnormal size of the acceleration/accel of car 3 to car 3.Usually, owing to occurring extremely in the speed of car 3, the acceleration/accel of car 3 occurs abnormal, thus can reduce the frequency applying large impact to car 3 further, and car 3 can be made to stop more reliably.

And, because the position with car 3 is set with normal speed test pattern 115, first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 accordingly, thus, the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 can be set accordingly respectively in all positions in the lifting interval of car 3 and normal speed test pattern 115.Therefore, due to particularly in acceleration and deceleration interval, the value of normal speed test pattern 115 is little, thus, respectively the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 can being set to smaller value, can reducing by braking the impact to car 3 caused.

In addition, in the examples described above, be the speed making monitor unit 108 obtain car 3, employ car speed sensor 110, but also can not use car speed sensor 110, but derive the speed of car 3 according to the position of the car 3 detected by car position sensor 109.That is, also by differentiating to the position of the car 3 calculated according to the position detection signal from car position sensor 109, the speed of car 3 can be obtained.

And, in the examples described above, be the acceleration/accel making monitor unit 108 obtain car 3, employ car acceleration sensor 111, but also can not use car acceleration sensor 111, but derive the acceleration/accel of car 3 according to the position of the car 3 detected by car position sensor 109.That is, also by asking second differential to the position of the car 3 calculated according to the position detection signal from car position sensor 109, the acceleration/accel of car 3 can be obtained.

And, in the examples described above, efferent 114, according to as each abnormal speed of car 3 and intensity of anomaly of acceleration/accel judging key element, determines the brake unit of output services signal, but extremely can judge that key element pre-determines the brake unit of output services signal to each.

Embodiment 12

Figure 21 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 12.In the drawings, the stop of each floor is provided with multiple hall call buttons 125.Further, in car 3, multiple destination floor button 126 is provided with.And monitor unit 127 has efferent 114.The abnormal judgment standard generating apparatus 128 generating the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration is electrically connected with efferent 114.Abnormal 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 abnormal judgment standard generating apparatus 128 from car position sensor 109 by efferent 114.

Abnormal judgment standard generating apparatus 128 has: storage part 129(memory section), be stored as the abnormal judgment standards of multiple car speed and the abnormal judgment standard of multiple car acceleration of the abnormal judgment standard of all situations be elevated at each floor gap about car 3; And generating unit 130, from storage part 129, select the abnormal judgment standard of car speed and abnormal each one of the judgment standard of car acceleration, abnormal for selected car speed judgment standard and the abnormal judgment standard of car acceleration are outputted to efferent 114.

In the abnormal judgment standard of each car speed, be set with the position of car 33 grades of test pattern that abnormal judgment standard is identical with the car speed shown in Figure 19 of embodiment 11 accordingly.Further, in the abnormal judgment standard of each car acceleration, be set with the position of car 33 grades of test pattern that abnormal judgment standard is identical with the car acceleration shown in Figure 20 of embodiment 11 accordingly.

Generating unit 130 calculates the detection position of car 3 according to the information from car position sensor 109, calculates the destination of car 3 according to the information from least any one party in each hall call buttons 125 and destination floor button 126.Further, generating unit 130 selects the abnormal judgment standard of car speed using calculated detection position and destination as one and another terminating layer and abnormal each one of the judgment standard of car acceleration.

Other structure is 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 by such as passenger any one party selected in each hall call buttons 125 and destination floor button 126, and when calling signal is input to generating unit 130 from selected button, in generating unit 130, calculate detection position and the destination of car 3 according to the input of position detection signal and calling signal, select the abnormal judgment standard of car speed and abnormal each one of the judgment standard of car acceleration.Afterwards, from generating unit 130, abnormal for selected car speed judgment standard and the abnormal judgment standard of car acceleration are outputted to efferent 114.

At efferent 114, the same with embodiment 11, there is without exception detection separately to the speed of car 3 and acceleration/accel.Action is afterwards identical with embodiment 9.

In this lift appliance, because abnormal judgment standard generating apparatus generates the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration according to the information from least any one party in hall call buttons 125 and destination floor button 126, thus, the abnormal judgment standard of the car speed corresponding with destination and the abnormal judgment standard of car acceleration can be generated, even if when have selected different target floor, also can shorten when occurring abnormal from elevator to the time produced needed for braking force.

In addition, in the examples described above, generating unit 130 selects the abnormal judgment standard of car speed and abnormal each one of the judgment standard of car acceleration from the abnormal judgment standard of multiple car speed be stored in storage part 129 and the abnormal judgment standard of multiple car acceleration, but also according to the normal speed figure of the car 3 generated by control panel 102 and normal acceleration figure, directly can generate abnormal speed test pattern and abnormal acceleration detection figure respectively.

Embodiment 13

Figure 22 is the constructional drawing of the lift appliance schematically showing 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 arranged on the top of car 3.Car position sensor 109, car speed sensor 110 and multiple rope sensor 132 are electrically connected with efferent 114 respectively, the plurality of rope sensor 132 is arranged on rope fastening device 131, is respectively to the cord break test section that each main rope 4 has crack-free to detect.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and rope sensor 132.

When main rope 4 breaks, each rope sensor 132 outputs to efferent 114 respectively Safety check-up signal.Further, store in storage part 113: the abnormal judgment standard of the car speed identical with the embodiment 11 shown in Figure 19 and as judging that main rope 4 has the rope exception judgment standard of N/R benchmark.

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

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

When the speed of car 3 is more than first abnormal speed test pattern 116 (Figure 19), or when at least one main rope 4 breaks, efferent 114 outputs to towing machine brake equipment 106 working signal (energizing signal).Further, when the speed of car 3 is more than second abnormal speed test pattern 117 (Figure 19), or when all main ropes 4 break, efferent 114 outputs to towing machine brake equipment 106 and emergency braking device 33 working signal.That is, efferent 114 is according to the state intensity of anomaly separately of the speed of car 3 and main rope 4, determines the brake unit of output services signal.

Figure 23 is the constructional drawing representing rope fastening device 131 in Figure 22 and each rope sensor 132.Further, Figure 24 is the constructional drawing of the state that the main rope 4 of 1 of representing in Figure 23 breaks.In the drawings, rope fastening device 131 has the multiple rope connecting portions 134 be connected with car 3 by each main rope 4.Each rope connecting portion 134 has the elastomeric spring 133 between main rope 4 and car 3.Car 3 moves relative 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 the displacement measuring instruments of the elongation measuring elastomeric spring 133.Each rope sensor 132 always outputs to efferent 114 the measured signal corresponding with the elongation of elastomeric spring 133.Measured signal when elastomeric spring 133 is reached specified amount by the elongation recovering to cause is input to efferent 114 by as Safety check-up signal.In addition, can using the measurement mechanism of tension force directly measuring each main rope 4 as rope sensor setting on each rope connecting portion 134.

Other structure is identical with embodiment 11.

Below, action is described.When the position detection signal from car position sensor 109, the speed detection signal from car speed sensor 110 and the Safety check-up signal from each rope sensor 131 are imported into efferent 114, 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, abnormal for the car speed obtained respectively from storage part 113 judgment standard and the abnormal judgment standard of rope, compare with the speed of car 3 calculated according to the input of each detection signal and the radical that breaks of main rope 4, have without exception detection separately to the speed of car 3 and the state of main rope 4.

When normal operation, speed due to car 3 has the value roughly the same with normal speed test pattern, and the radical that breaks of main rope 4 is zero, thus at efferent 114, detect that the speed of car 3 and the state of main rope 4 do not have abnormal separately, continue the normal operation of elevator.

Rise when such as making the velocity anomaly of car 3 for a certain reason and more than first abnormal speed test pattern 116 (Figure 19), detect that the speed of car 3 has exception at efferent 114, 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 being stopped, and make towing machine brake equipment 106 action, braking driving the rotation of rope sheave 104.

Further, when at least one main rope 4 breaks, working signal and danger signal output to towing machine brake equipment 106 and control panel 102 respectively from efferent 114, brake driving the rotation of rope sheave 104.

After towing machine starts with brake equipment 106, when the speed of car 3 rise further and more than second abnormal speed setting value 117 (Figure 19), maintaining under the state that working signal is outputted to towing machine brake equipment 106, working signal outputs to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 action, by the action identical with embodiment 2, car 3 is braked.

And, after towing machine starts with brake equipment 106, when all main ropes 4 break, also maintaining under the state that working signal is outputted to towing machine brake equipment 106, working signal is outputted to emergency braking device 33 from efferent 114, makes emergency braking device 33 action.

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

In addition, in the examples described above, in the rope fastening device 131 be arranged on car 3, be provided with rope sensor 132, but also rope sensor 132 can be set being arranged in the rope fastening device on counterweight 107.

And, in the examples described above, the present invention is applied to the lift appliance as Types Below, that is: an end of main rope 4 is connected respectively with car 3 and counterweight 107 with the other end, car 3 and counterweight 107 is made to be suspended in hoistway 1, but the present invention also can be applied to the lift appliance as Types Below, that is: the main rope 4 that an end and the other end are connected with the works in hoistway 1 is wound on car hanging wheel and counterweight hanging wheel respectively, car 3 and counterweight 107 are suspended in hoistway 1.In the case, in set on the works of rope sensor setting in hoistway 1 rope fastening device.

Embodiment 14

Figure 25 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 14.In this embodiment, the rope sensor 135 as cord break test section is embedded in the wire in each main rope 4.Each wire extends at the length direction of main rope 4.One end of each wire and the other end are electrically connected with efferent 114 respectively.In each wire, there is weak current to flow through.Cut-out respectively to the energising of each wire is input to efferent 114 by as Safety check-up signal.

Other structure is identical with embodiment 13 with action.

In this lift appliance, owing to detecting breaking of each main rope 4 according to the cut-out of the energising to the wire be embedded in each main rope 4, thus, can not be subject to the impact of the tension variation of each main rope 4 caused by the acceleration and deceleration of car 3, can detect each main rope 4 more reliably has crack-free.

Embodiment 15

Figure 26 is the constructional drawing of the lift appliance schematically showing 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 the gangway opening and closing test sections detected the open and-shut mode of car gangway 26.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and door sensor 140.

When car gangway 26 be in close door state time, door sensor 140 outputs to efferent 114 closing a detection signal.Further, store in storage part 113: the abnormal judgment standard of the car speed identical with the embodiment 11 shown in Figure 19 and as judging that the open and-shut mode of car gangway 26 has the gangway abnormal state judgment standard of N/R benchmark.Gangway abnormal state judgment standard car 3 to be elevated and the condition adjudgement of patent door is abnormal abnormal judgment standard.

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

When under the state at car gangway 26 patent door, car 3 is elevated, or when the speed of car 3 is more than first abnormal speed test pattern 116 (Figure 19), efferent 114 outputs to towing machine brake equipment 106 working signal.Further, when the speed of car 3 is more than second abnormal speed test pattern 117 (Figure 19), efferent 114 outputs to towing machine brake equipment 106 and emergency braking device 33 working signal.

Figure 27 represents the car 3 of Figure 26 and the block diagram of door sensor 140.Further, Figure 28 is the block diagram representing the state that the car gangway 26 of Figure 27 is opened.In the drawings, door sensor 140 is configured in the top of car gangway 26, and the frontal of car 3 is configured in the central authorities of car gangway 26 relatively.Door sensor 140 detects towards the movement of closing a position separately to a pair gate 28, outputs to efferent 114 closing a detection signal.

In addition, as door sensor 140, can list touch sensor or proximity transducer etc., touch sensor closes door state by contacting to detect with the fixed part be fixed on each gate 28, and proximity transducer is detected by noncontact and closes door state.Further, a pair layer of door 142 making landing doorway 141 opening and closing is provided with at landing doorway 141.When car 3 rests in stop floor, each layer door 142 is engaged with each gate 28 by clamping close device (not shown), moves together with each gate 28.

Other structure is identical with embodiment 11.

Below, action is described.When the position detection signal from car position sensor 109, the speed detection signal from car speed sensor 110 and from door sensor 140 close a detection signal be imported into efferent 114 time, 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 abnormal judgment standard of abnormal for the car speed obtained respectively from storage part 113 judgment standard and gangway, compare with the speed of car 3 calculated according to the input of each detection signal and the state of each gate 28, have without exception detection separately to the speed of car 3 and the state of car gangway 26.

When normal operation, speed due to car 3 has the value roughly the same with normal speed test pattern, and the car gangway 26 when car 3 is elevated is in closes door state, thus, at efferent 114, detect that the speed of car 3 and the state of car gangway 26 do not have abnormal separately, continue the normal operation of elevator.

Rise when such as making the velocity anomaly of car 3 for a certain reason and more than first abnormal speed test pattern 116 (Figure 19), detect that the speed of car 3 has exception at efferent 114, 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 being stopped, and make towing machine brake equipment 106 action, braking driving the rotation of rope sheave 104.

And, car gangway 26 when car 3 is elevated is in patent door state, the exception of car gangway 26 is detected at efferent 114, working signal and danger signal output to towing machine brake equipment 106 and control panel 102 respectively from efferent 114, brake driving the rotation of rope sheave 104.

After towing machine starts with brake equipment 106, when the speed of car 3 rise further and more than second abnormal speed setting value 117 (Figure 19), maintaining under the state that working signal is outputted to towing machine brake equipment 106, working signal is outputted to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 action, by the action identical with embodiment 2, car 3 is braked.

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

In addition, in the examples described above, only detected the state of car gangway 26 by door sensor 140, but door sensor 140 also can be used to detect car gangway 26 and the respective state of landing doorway 141.In the case, each layer door 142 is detected towards closing the movement of a position and each gate 28 towards the movement of closing a position by door sensor 140.Like this, even if when such as making the et out of orders such as the clamping close device of gate 28 and the mutual engaging of layer door 142, only having gate 28 to move, also can abnormal elevator be detected.

Embodiment 16

Figure 29 is the constructional drawing of the lift appliance schematically showing embodiment of the present invention 16.Figure 30 is the constructional drawing on hoistway 1 top represented in Figure 29.In the drawings, electric power supply cable 150 is electrically connected with towing machine 101.Drive electric power by the control of control panel 102, be supplied to towing machine 101 via electric power supply cable 150.

Electric power supply cable 150 is provided with current sensor 151, and this current sensor 151 is the actuating device test sections by measuring the state detecting towing machine 101 to the electric current flowing through electric power supply cable 150.Current sensor 151 outputs to efferent 114 the current detection signal (actuating device state detection signal) corresponding with the current value of electric power supply cable 150.In addition, current sensor 151 is configured in hoistway 1 top.Further, as current sensor 151, can list current transformer (CT) etc., this current transformer (CT) measures the inducing current produced according to the size of current flowing through electric power supply cable 150.

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.

Store in storage part 113: the abnormal judgment standard of the car speed identical with the embodiment 11 shown in Figure 19 and as judging that the state of towing machine 101 has the actuating device exception judgment standard of N/R benchmark.

3 grades of test pattern are set with in the abnormal judgment standard of actuating device.That is, be set with in the abnormal judgment standard of actuating device: normal level is the current value flowing through electric power supply cable 150 when normal operation; First abnormal level, has the value larger than normal level; And second abnormal level, there is the value larger than the first abnormal level.

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

When the speed of car 3 is more than first abnormal speed test pattern 116 (Figure 19), or when the size of current flowing through electric power supply cable 150 exceedes the value of the first abnormal level in the abnormal judgment standard of actuating device, efferent 114 outputs to towing machine brake equipment 106 working signal (energizing signal).And, when the speed of car 3 is more than second abnormal speed test pattern 117 (Figure 19), or when the size of current flowing through electric power supply cable 150 exceedes the value of the second abnormal level in the abnormal judgment standard of actuating device, efferent 114 outputs to towing machine brake equipment 106 and emergency braking device 33 working signal.That is, efferent 114 is according to the state intensity of anomaly separately of the speed of car 3 and towing machine 101, determines the brake unit of output services signal.

Other structure is identical with embodiment 11.

Below, action is described.When the position detection signal from car position sensor 109, the speed detection signal from car speed sensor 110 and when being imported into efferent 114 from the current detection signal of current sensor 151, at efferent 114, according to the input of each detection signal, calculate the size of current in the position of car 3, the speed of car 3 and electric power supply cable 150.Afterwards, at efferent 114, size of current in the speed of abnormal for the car speed that obtains respectively from storage part 113 judgment standard and actuating device abnormal state judgment standard and the car 3 calculated according to the input of each detection signal and electric power supply cable 150 is compared, has without exception detection separately to the speed of car 3 and the state of towing machine 101.

When normal operation, speed due to car 3 has the value roughly the same with normal speed test pattern 115 (Figure 19), and the size of current flowing through electric power supply cable 150 is normal level, thus at efferent 114, detect that the speed of car 3 and the state of towing machine 101 do not have abnormal separately, continue the normal operation of elevator.

Rise when such as making the velocity anomaly of car 3 for a certain reason and more than first abnormal speed test pattern 116 (Figure 19), detect that the speed of car 3 has exception at efferent 114, 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 being stopped, and towing machine brake equipment 106 is started, braking driving the rotation of rope sheave 104.

And, when the size of current flowing through electric power supply cable 150 exceedes the first abnormal level in actuating device abnormal state judgment standard, working signal and danger signal output to towing machine brake equipment 106 and control panel 102 respectively from efferent 114, brake driving the rotation of rope sheave 104.

After towing machine is with brake equipment 106 action, when the speed of car 3 rise further and more than second abnormal speed setting value 117 (Figure 19), maintaining under the state that working signal is outputted to towing machine brake equipment 106, working signal outputs to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 action, by the action identical with embodiment 2, car 3 is braked.

And, after towing machine starts with brake equipment 106, when the size of current flowing through electric power supply cable 150 exceedes the second abnormal level in actuating device abnormal state judgment standard, maintaining under the state that working signal is outputted to towing machine brake equipment 106, working signal outputs to emergency braking device 33 from efferent 114, makes emergency braking device 33 action.

In this lift appliance, because monitor unit 108 obtains the speed of car 3 and the state of towing machine 101 according to the information from the detecting unit 112 detected state of elevator, when any one party in the state of the speed and towing machine 101 that are judged as acquired car 3 has abnormal, working signal is outputted at least any one party in towing machine brake equipment 106 and emergency braking device 33, thus, the abnormality detection number of objects of elevator increases, and can shorten further, from elevator, the abnormal braking force required time to producing car 3 occur.

In addition, in the examples described above, use the current sensor 151 measured the size of current flowing through electric power supply cable 150 to detect the state of towing machine 101, but the temperature sensor measured the temperature of towing machine 101 also can be used to detect the state of towing machine 101.

And, in above-mentioned embodiment 11 to 16, efferent 114 is before outputting to emergency braking device 33 working signal, working signal is outputted to towing machine brake equipment 106, but also can make efferent 114 that working signal is outputted to: car brake, being separately mounted on car 3 with emergency braking device 33, by clamping car guide rail 2, car 3 being braked; Counterweight drg, is arranged on counterweight 107, guides the counter weight guide track of counterweight 107 to brake counterweight 107 by clamping; Or wire stopper, is arranged in hoistway 1, by limiting main rope 4, main rope 4 is braked.

And, in above-mentioned embodiment 1 to 16, as the delivery unit for electric power being supplied to emergency braking device from efferent, use electrical cable, but also can use radio communication device, this radio communication device has and is arranged on transmitter in efferent and is arranged on the in-house receptor of emergent stopping.Further, the fibre-optic cable transmitting optical signal can also be used.

And, in above-mentioned embodiment 1 to 16, emergency braking device to car downward to mistake speed (movement) brake, but this emergency braking device also can be arranged on car upside down, brakes mistake speed (movement) upwardly-directed.

Embodiment 17

Figure 31 is the front view of the car of the lift appliance representing embodiment of the present invention 17.In the drawings, car 201 comprises: car frame 202; And the cage 203 to be supported by car frame 202.Car frame 202 has: top frame 202a; Under(-)chassis 202b and a pair vertical frame 202c.

Top frame 202a is provided with by mounting base 205 a pair upper guide boots 204 engaged with car guide rail 2.Each upper guide boots 204 are provided with oil feeder 206.Under(-)chassis 202b is provided with a pair lower guide boots 207 engaged with car guide rail 2.

A mounting base 205 is provided with primary sensor portion 208, and this primary sensor portion 208 is for producing the main detection signal corresponding with the amount of movement of car 201 continuously.

The main detection signal coming autonomic sensor portion 208 is sent to control setup 209.Control setup 209 obtains car information according to main detection signal, i.e. car location information and car speed information.In addition, control setup 209 controls the running of car 201 according to car information.

Specifically, when control setup 209 is operation controller, control setup 209 obtains position and the speed of car 201, then generates the moving velocity figure of car 201.

In addition, when control setup 209 is safety device, control setup 209 obtains position and the speed of car 201, and obtains the threshold value of such as car speed as shown in Figure 19, and monitors whether car speed reaches threshold value.

Control setup 209 can be arranged on car 201.Specifically, control setup 209 such as can be configured in the top of car 201 or base plate inferior.In addition, by making control setup 209 thin type fully, also control setup 209 can be imbedded in vertical frame 202c.In addition, control setup 209 also can be configured at top, the bottom or wall portion etc. of hoistway 1.

Figure 32 is the lateral plan of the main portion in Watch with magnifier diagram 31.Primary sensor portion 208 has a pair primary sensor 210a, 210b clipping car guide rail 2 balanced configuration.Each primary sensor 210a, 210b have: detect roller 211, its lifting along with car 201 and rotating along car guide rail 2; Signal generator 212, it produces main detection signal (impulse singla) according to the rotation detecting roller 211.

Detect roller 211 to be pressed against on car guide rail 2.In Figure 32, represent the state after unloading the detection roller 211 of primary sensor 210b.Such as coder is used as signal generator 212.

Control setup 209 compares the main detection signal from each primary sensor 210a, 210b, when difference between main detection signal is more than or equal to the setting value preset, be judged as primary sensor 210a, 210b at least either party breaks down, and produce fault detection signal.

Mounting base 205 is provided with aiding sensors portion 213.Aiding sensors portion 213, by detecting that car 201 has reached the reference position preset in hoistway 1, produces auxiliary detection signal.Control setup 209 is revised car information according to the auxiliary detection signal from aiding sensors portion 213.That is, when inputting auxiliary detection signal, the car location information of control setup 209, is replaced as the car position obtained according to auxiliary detection signal from the car position obtained according to main detection signal.Meanwhile, car speed information is also corrected.

Car guide rail 2 has the multiple track segments engaged on the lifting direction of car 201.Aiding sensors portion 213 is configured to opposed with the side of car guide rail 2, and the joint detecting track segment is as reference position.So whenever passing through the joint of car guide rail 2 in aiding sensors portion 213, control setup 209 is transfused to auxiliary detection signal, and is revised car information.

As aiding sensors portion 213, the sensor such as carrying out detection tabs according to the change of light reflectance can be used, or use detection apart from the sensor of the change of the distance on the surface of car guide rail 2.

In addition, according to auxiliary detection signal the setting value preset is more than or equal to the correction of car information time, control setup 209 be judged as primary sensor portion 208 and aiding sensors portion 213 at least either party breaks down, and produce fault detection signal.When creating fault detection signal, car 201 emergent stopping (or, if possible, stopping near floor), and send fault detection signal to elevator management room.

Mounting base 205 is provided with the acceleration pick-up 214 of attitudes vibration for detecting car 201 or vibration.Control setup 209 is also revised car information according to the signal carrying out acceleration sensor 214.That is, in control setup 209, eliminate from car information because of the attitude of car 201 or vibration and the impact produced according to the signal carrying out acceleration sensor 214.

In this lift appliance, owing to combinationally using for the primary sensor portion 208 of detection position, speed and the aiding sensors portion 213 of detection reference position continuously, even if therefore make car location information produce error owing to detecting roller 211 relative to car guide rail 2 generation skidding etc., also can be revised car location information by auxiliary detection signal before this deviation accumulation, position or the speed of car 201 can be obtained more exactly.

In addition, owing to employing two groups of primary sensors 210a, 210b in primary sensor portion 208, therefore, it is possible to improve reliability.

In addition, owing to monitoring the car position obtained according to main detection signal and the difference of car position obtained according to auxiliary detection signal, therefore, the fault in primary sensor portion 208 and aiding sensors portion 213 can also be detected, reliability can be improved further.

Embodiment 18

Next, Figure 33 represents the constructional drawing of the lift appliance of embodiment of the present invention 18.In the drawings, hoistway overhead is provided with actuating device (towing machine) 251 and deflector sheave 252.Actuating device 251 has motor part (actuating device main body) 251b driving rope sheave 251a and driving rope sheave 251a is rotated.Motor part 251b is provided with the electro-magnetic braking device to driving the rotation of rope sheave 251a to brake.

Driving rope sheave 251a and deflector sheave 252 are wound with main rope 253.Car 254 and counterweight 255 are suspended in hoistway by main rope 253.

Be provided with mechanical emergency braking device 256 in the bottom of car 254, this emergency braking device 256 makes car 254 emergent stopping by engaging with guide rail (not shown).Governor sheave 257 is configured with on the top of hoistway.Tension wheel 258 is configured with in the bottom of hoistway.Governor sheave 257 and tension wheel 258 are wound with overspeed governor 259.The both ends of overspeed governor 259 are connected with the throw rod 256a of emergency braking device 256.So governor sheave 257 rotates with the speed of the moving velocity corresponding to car 254.

Governor sheave 257 is provided with the primary sensor portions 208 such as coder, and this primary sensor portion 208 exports the signal for the position and speed detecting car 254.The main detection signal coming autonomic sensor portion 208 is imported in control setup 260.

The top (governor sheave 257 or its near) of hoistway is provided with overspeed governor holding device (rope fixing device) 261, and overspeed governor holding device 261 makes it stop circulation by damp governor rope 259.Overspeed governor holding device 261 comprises: the holding part 261a of damp governor rope 259; And drive the electromagnetic actuators 261b of holding part 261a.

When the working signal from elevator control gear 260 is input in overspeed governor holding device 261, by the propulsive effort of electromagnetic actuators 261b, holding part 261a moves, and overspeed governor 259 is stopped mobile.When overspeed governor 259 stops, by the movement of car 254, throw rod 256a is operated, and makes emergency braking device 256 action, thus car 254 emergent stopping.

On the reference position preset in hoistway, be provided with multiple aiding sensors portion 213.Aiding sensors portion 213, by detecting that car 254 moves to reference position, exports auxiliary detection signal to control setup 260.Control setup 260 is revised the car location information obtained according to main detection signal and car speed information according to auxiliary detection signal.

As the reference position arranging aiding sensors portion 213, such as, can enumerate each floor stop position, orlop stop position, the superiors' stop position, lobby floor stop position, deceleration starting point etc.In addition, aiding sensors portion 213 can be one and also can be more than three or three.

Like this, the present invention also can be applied to the lift appliance using overspeed governor holding device 261.

In addition, the present invention not only can be applied to primary sensor portion 208 and be arranged on lift appliance on car 254, also can be applied in the lift appliance that primary sensor portion 208 is arranged at velocity limiter.

In addition, aiding sensors portion 213 not only can be arranged on car 254, also can be arranged on hoistway side.

In addition, the combination in the primary sensor portion shown in embodiment 17,18 and aiding sensors portion, can be used as the sensor in embodiment 1 to 16 certainly.

In addition, multiple primary sensor is set in primary sensor portion, also can corresponds to each primary sensor in aiding sensors portion and multiple aiding sensors is set.

In addition, in embodiment 17, with the joint of car guide rail 2 for reference position, but reference position is not limited to this, such as, the various equipment in the hoistways such as stop sill, stop door pocket, stop door, guide rails assembling support, guide rail track bolt can be set to reference position.Certainly, be not only existing equipment, also special mark can be newly set in reference position.

In addition, in embodiment 17,18, show example car information revised according to auxiliary detection signal, but car information also can be revised.Such as, when just substantially not producing error as long as no fault etc. according to main detection signal car information, control setup also only can monitor the error of car information according to auxiliary detection signal.At this moment, such as, relative to the car position obtained according to auxiliary detection signal, if the car position skew obtained according to main detection signal is more than or equal to set amount, then control setup produces fault detection signal.

In addition, the present invention also can be applicable to actuating device and be arranged on self-propelled elevator on car, or also can be applied to the many Lift car type elevator being configured with multiple car in hoistway.

Claims (1)

1. a lift appliance, comprising:

The car be elevated in hoistway;

Car position test section, it is for detecting the position of described car;

Car speed test section, it is for detecting the speed of described car;

Car acceleration test section, it is for detecting the acceleration/accel of described car;

Storage part, it stores the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration as the abnormal judgment standard of the acceleration/accel about described car, and the position of described car speed exception judgment standard and described car sets accordingly, be the abnormal judgment standard of speed about described car; And

Efferent, itself and described car position test section, described car speed test section and the electrical connection of described car acceleration test section, to the abnormal judgment standard of described car speed obtained from described storage part and the abnormal judgment standard of described car acceleration, the speed of described car calculated with the input according to detection signal and the acceleration/accel of described car compare, the state detecting the speed of described car and the acceleration/accel of described car has without exception, when being judged as abnormal, this efferent is at least any one party output services signal in towing machine brake equipment and emergency braking device,

In the abnormal judgment standard of described car acceleration, be set with accordingly with the position of car respectively: normal acceleration test pattern, the acceleration/accel of car when being normal operation; First abnormal acceleration detection figure, has the value larger than normal acceleration test pattern; And the second abnormal acceleration detection figure, there is the value larger than the first abnormal acceleration detection figure,

When the car acceleration exceeding described second abnormal acceleration detection figure being detected, described efferent outputs to emergency braking device working signal, makes described emergency braking device action.