CN104203795B - Elevator car safety - Google Patents

Elevator car safety Download PDF

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Publication number
CN104203795B
CN104203795B CN201280071592.5A CN201280071592A CN104203795B CN 104203795 B CN104203795 B CN 104203795B CN 201280071592 A CN201280071592 A CN 201280071592A CN 104203795 B CN104203795 B CN 104203795B
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CN
China
Prior art keywords
door
movable
stop
detecting
elevator car
Prior art date
Application number
CN201280071592.5A
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Chinese (zh)
Other versions
CN104203795A (en
Inventor
纐缬雅彦
Original Assignee
三菱电机株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 三菱电机株式会社 filed Critical 三菱电机株式会社
Priority to PCT/JP2012/057343 priority Critical patent/WO2013140575A1/en
Publication of CN104203795A publication Critical patent/CN104203795A/en
Application granted granted Critical
Publication of CN104203795B publication Critical patent/CN104203795B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/14Control systems or devices
    • B66B13/16Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
    • B66B13/20Lock mechanisms actuated mechanically by abutments or projections on the cages

Abstract

Elevator car safety has locking device (16), tripper (34), movement device (36).Locking device (16) locks to stop door (10).Locking device (16) is unlocked by the unlimited action of car door (22).Tripper (34), by being carried out the 1st operation from stop, carrys out Lock device with two same action member (16) and unlocks.Detecting device (35) has switch (39).Movement device (36) has movable part (40), mechanism part (41), maintaining part (42).Movable part (40) is shifted between the 1st position and the 2nd position.Movable part (40) by carrying out the 1st operation to tripper (34), and is configured in the 2nd position by mechanism part (41).Maintaining part (42) keeps movable part (40) to be configured in the state of the 2nd position.If movable part (40) is configured in the 2nd position, then, when stop door (10) is closed, movable part (40) contacts with detecting device (35), makes switch (39) action.

Description

Elevator car safety

Technical field

The present invention relates to elevators field, particularly relate to a kind of elevator car safety.

Background technology

In recent years, machine-roomless lift is increasing.Machine-roomless lift does not have machine room on the top etc. of building.The necessary equipment of elevator such as control panel is arranged in hoistway.Therefore, the service personnel of elevator frequently enters hoistway when carrying out upkeep operation.

When entering the hoistway of elevator, first service personnel uses the locking device of the key of regulation to stop door to unlock.Service personnel opens stop door after having unlocked locking device, carries out operation after disconnecting safety switch (making its action).Safety device is arranged at such as hoistway or car.In elevator, landing door device has mutual interlocking gear.Therefore, open period at stop door, the car of elevator does not move.And above-mentioned safety switch once motion, the car of elevator does not also move.

When carrying out the maintenance of elevator, there is service personnel and forgetting the situation disconnecting safety switch.Under these circumstances, if stop door is closed, then the car of elevator is in transportable state.

Following patent documentation 1 discloses when service personnel has unlocked locking device, makes the device of safety switch auto-action.

Prior art document

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 8-91730 publication

Summary of the invention

Invent problem to be solved

In device described in patent documentation 1, relay test service personnel is used to open this situation of stop door.Therefore, after the power supply of control setup is cut-off, information is before this reset.Afterwards, when power returns, there is the problem cannot correctly carrying out detecting.

The present invention completes, even if its object is to provide a kind of also reliably can detect that when the cut-out etc. that there occurs power supply service personnel has unlocked the elevator car safety of stop door to solve problem as described above.

For solving the means of problem

The elevator car safety that the present invention relates to has: stop door, and it is located at the stop of elevator and opening and closing landing doorway; Locking device, it locks to stop door, and is unlocked by the unlimited action of the car door when the car of elevator stops at stop; Tripper, it, by by the 1st operation carrying out specifying from stop, carrys out Lock device with two same action member and unlocks; Detecting device, it is located at the fixed body of hoistway, and has switch; And movement device, it is located at stop door, and movement device has: movable part, is shifted between its 1st position in regulation and the 2nd position; Mechanism part, by carrying out the 1st operation to tripper, movable part is configured in the 2nd position by this mechanism part; And maintaining part, it keeps movable part to be configured in the state of the 2nd position, if movable part is configured in the 2nd position, then, when stop door is closed, movable part contacts with detecting device, makes switch motion.

The effect of invention

If the elevator car safety that the present invention relates to, even if when the cut-out etc. that there occurs power supply, also reliably can detect that service personnel has unlocked stop door.

Accompanying drawing explanation

Fig. 1 illustrates the integrally-built figure of elevator.

Fig. 2 is the lateral plan of the main portions that elevator is shown.

Fig. 3 is the figure of the structure of the elevator car safety that embodiments of the present invention 1 are shown.

Fig. 4 is the figure of the structure of the elevator car safety that embodiments of the present invention 1 are shown.

Fig. 5 is the front view of the movement device of the elevator car safety that embodiments of the present invention 1 are shown.

Fig. 6 is the birds-eye view of the movement device of the elevator car safety that embodiments of the present invention 1 are shown.

Fig. 7 is the figure of the circuit structure of the elevator car safety that embodiments of the present invention 1 are shown.

Fig. 8 is the front view of the movement device of the elevator car safety that embodiments of the present invention 2 are shown.

Fig. 9 is the birds-eye view of the movement device of the elevator car safety that embodiments of the present invention 2 are shown.

Figure 10 is the figure of the circuit structure of the elevator car safety that embodiments of the present invention 3 are shown.

Figure 11 is the figure of the structure of the elevator car safety that embodiments of the present invention 4 are shown.

Figure 12 is the figure of the structure of the elevator car safety that embodiments of the present invention 5 are shown.

Detailed description of the invention

With reference to accompanying drawing, the present invention is described in detail.In various figures, identical label is added to same or equivalent part.For the explanation repeated, suitably carry out simplifying or omitting.

(embodiment 1)

Fig. 1 is the figure of the structure that elevator entirety is shown.

In FIG, the hoistway of 1 expression elevator, the stop of 2 expression elevators.Stop 2 is located at each layer of such as building.The car of 3 expression elevators, 4 represent counterweights.Car 3 is elevated in hoistway 1.Car 3 and counterweight 4 are located in hoistway 1 by main rope 5 hanger bracket.

The towing machine of 6 expression elevators.Towing machine 6 is arranged in the machine room such as possessed above hoistway 1.When machine-roomless lift, towing machine 6 is arranged in such as hoistway 1 (top, pit part).A part for main rope 5 is winding on towing machine 6 (driving rope sheave).When towing machine 6 (driving rope sheave) rotates, main rope 5 moves at its length direction.Car 3, along the direction corresponding to the moving direction of main rope 5, is elevated in hoistway 1.Counterweight 4 is elevated in hoistway 1 along the direction contrary with car 3.

7 expressions control the control setup of the operation of elevator.Control setup 7 is arranged at such as machine room.When machine-roomless lift, control setup 7 is arranged in such as hoistway 1.Towing machine 6 is controlled by control setup 7.

8 display plates, 9 represent the detecting device that pulls in.The detecting device 9 that pulls in is located at car 3.Plate 8 is fixed on the fixed body (such as well enclosure) of hoistway 1.Plate 8 corresponds to each stop 2 and arranges.Plate 8 is configured to when car 3 rests against stop 2 (car 3 is consistent with the height of stop 2 and when stopping), and detecting device 9 is relative with pulling in.Pulling in detecting device 9 when plate 8 being detected, detecting that car 3 has rested against stop 2.

Car 3 has cage door device.Landing door device is provided with at each stop 2.

Below, also referring to figs. 2 to Fig. 6, the structure of cage door device and the structure of landing door device are specifically described.Fig. 2 is the lateral plan of the main portions that elevator is shown.Fig. 2 shows the state that car 3 rests against stop 2.Fig. 3 and Fig. 4 is the figure of the structure of the elevator car safety that embodiments of the present invention 1 are shown.Fig. 3 and Fig. 4 shows the state of observing landing door device from car 3 side.

Landing door device has stop door 10.Stop door 10 opening and closing landing doorway.The main portions of stop door 10 is made up of door-plate 11 and door hanger 12.Door-plate 11 is parts of in fact opening and closing landing doorway.Landing doorway is blocked by door-plate 11.Door hanger 12 is located at the top on door-plate 11 top.Door-plate 11 hangs on door hanger 12.Stop door 10 moves along its Width, with opening and closing landing doorway.The stop door 10 of one-sided unfolding mode has been shown in Fig. 3 and Fig. 4.

The movement of stop door 10 when opening and closing guides by door guide rail 13 and sill (not shown).Door guide rail 13 is supported by suspension bracket housing 14.Suspension bracket housing 14 is located on the fixed body (such as well enclosure) of hoistway 1.Suspension bracket housing 14 is configured at the top of landing doorway.Door guide rail 13 configures along frontal width direction on even keel above landing doorway.

Multiple rollers 15 are to be located at door hanger 12 along bidirectional rotation mode freely.Door roller 15 is placed in the upper surface of a guide rail 13.Door roller 15 rolls on door guide rail 13, guides thus to the movement of the upper end of stop door 10.

Landing door device has locking device 16.Locking device 16 is for locking to stop door 10.The main portions of locking device 16 is made up of fixed plate 17, snap close 18, detector switch 19.Fixed plate 17 is fixed on fabricated section 20.Fabricated section 20 is located at suspension bracket housing 14.

Door hanger 12 is located at by axle 21 in one end of snap close 18.Snap close 18 moves by this way: centered by axle 21 regulation angle in bidirectional rotation.Axle 21 configures with the mode on even keel outstanding to hoistway 1 side from door hanger 12.Therefore, the other end up-and-down movement of snap close 18.The other end of snap close 18 is hook-shaped.The other end of snap close 18 hangs over the terminal part of fixed plate 17, stops the unlimited action of stop door 10 thus.Namely stop door 10 is locked.

Detector switch 19 is the switches of cutting out completely for detecting stop door 10.Fabricated section 20 is located at by detector switch 19.Protrusion 18a is provided with in the other end of snap close 18.Detector switch 19 is aimed at the position of protrusion 18a and configures.When the other end of snap close 18 hangs over the terminal part of fixed plate 17 (when stop door 10 is locked), protrusion 18a is from overlying contact detector switch 19.

The detector switch 19 of each stop 2 (each landing door device) is such as connected in series with control setup 7.If in all landing door devices, protrusion 18a contacts with detector switch 19, then the signal specified is input to control setup 7.Under these circumstances, control setup 7 is judged to be that the stop door 10 of all stops 2 is closed.When the stop door 10 of all stops 2 is closed completely, control setup 7 allows car 3 to move.

If in any landing door device, protrusion 18a is separated with detector switch 19, then the signal of afore mentioned rules is not input to control setup 7.Under these circumstances, the stop door 10 of stop 2 that control setup 7 is judged to be is not closed.If there is the stop door 10 opened, then control setup 7 does not allow car 3 to move.

Namely in this elevator, there is mutual interlocking gear.

Landing door device does not have the actuating device for driving stop door 10.Cage door device has the actuating device (electrical motor 31 described later) for driving stop door 10.Cage door device has car door 22.Electrical motor 31 is for driving car door 22.The linkage 23 for making stop door 10 link with the on-off action of car door 22 is provided with in landing door device and cage door device.The main portions of the linkage 23 of stop 2 side is made up of roller 24, arm 25.

Roller 24 is to be located at an end of arm 25 along bidirectional rotation mode freely.The S. A. of roller 24 is configured to parallel with axle 21.Roller 24 configures in the mode more outstanding to hoistway 1 side (car 3 side) than stop door 10.Axle 21 is fixed in the other end of arm 25.Arm 25 extends from axle 21 along oblique upper.Arm 25 is to configure along with the mode near an end near fixed plate 17 side.

Car door 22 opening and closing car gangway.The main portions of car door 22 is made up of door-plate 26 and door hanger 27.Door-plate 26 is parts of in fact opening and closing car gangway.Car gangway is blocked by door-plate 26.Door hanger 27 is located at the top on door-plate 26 top.Door-plate 26 hangs on door hanger 27.Car door 22 moves along its Width, with opening and closing car gangway.

The movement of car door 22 when opening and closing guides by door guide rail 28 and sill (not shown).Door guide rail 28 is supported by suspension bracket housing 29.Suspension bracket housing 29 is located at the face side of car 3.Suspension bracket housing 29 is configured at the top of car gangway.Door guide rail 28 configures along frontal width direction on even keel above car gangway.

Multiple rollers 30 are to be located at door hanger 27 along bidirectional rotation mode freely.Door roller 30 is placed in the upper surface of a guide rail 28.Door roller 30 rolls on door guide rail 28, guides thus to the movement of the upper end of car door 22.

The propulsive effort of electrical motor 31 is passed to door hanger 27 (car door 22) by converting unit 32.Namely converting unit 32 is changed by the rotary motion of mechanism to the output shaft of electrical motor 31 of regulation, makes car door 22 opening and closing.

The main portions of the linkage 23 of car 3 side is made up of a pair plate 33.The top of door-plate 26 is located at by plate 33.Plate 33 is arranged abreast in the mode that the interval separating regulation is mutually opposing.Plate 33 configures in the mode more outstanding to stop 2 side than car door 22.

When car 3 rests against stop 2, roller 24 is configured between plate 33.Now, roller 24 not contact plate 33.When electrical motor 31 drives, (evolution is to direction (be the right direction in figure 3) movement of opening wide door movement during action to the direction of regulation for car door 22.When car door 22 is to evolution to when slightly moving, a plate 33 contacts roller 24.Car door 22 is further to evolution to movement, and roller 24 is pressed by plate 33 thus.Thus, arm 25 rotates to the direction (being cw in figure 3) of regulation centered by axle 21.

Snap close 18 is integrated with arm 25.Therefore, snap close 18 also rotates to the direction of regulation centered by axle 21.By above-mentioned rotation, snap close 18 departs from from fixed plate 17.The position rotating on regulation of arm 25 stops.When snap close 18 from fixed plate 17 depart from and the rotation of arm 25 stops time, stop door 10 and car door 22 1 in the same way evolution to movement.

Thus, the unlimited action of the car door 22 when locking device 16 stops at stop 2 by car 3 and unlocking.

When snap close 18 departs from from fixed plate 17, protrusion 18a leaves detector switch 19.Thus, control setup 7 detects that stop door 10 is opened (not closing completely).

When closing movement, car door 22 (closes direction: the direction (being left direction in figure 3) of door movement during closing movement is mobile in the opposite direction to above-mentioned evolution.Axle 21 (roller provided thereon) is pressed by another plate 33, and stop door 10 and car door 22 1 close direction in the same way and move.When stop door 10 is closed completely, snap close 18 hangs on fixed plate 17, and stop door 10 is locked.When snap close 18 hangs on fixed plate 17, protrusion 18a contact detection switch 19.Thus, control setup 7 detects that stop door 10 is closed.

Landing door device also has tripper 34, detecting device 35, movement device 36.

Tripper 34 carries out for Lock device with two same action member 16 device that unlocks.The service personnel of elevator, by the operation (the 1st operation) specified from stop 2 pairs of trippers 34, carrys out Lock device with two same action member 16 and unlocks.Key 37 is such as inserted the Kong Zhonghou of stop door 10 by service personnel from stop 2 side, by rotating key 37 to the direction of regulation, carrying out Lock device with two same action member 16 and unlocking.When carrying out aforesaid operations with key 37, tripper 34 makes arm 25 rotate to identical direction during unlimited action with car door 22.Thus, snap close 18 leaves fixed plate 17, and stop door 10 is unlocked.

The structure of tripper 34 is not limited to the above.Tripper 34 also can adopt the structure of hidden or T font.When tripper 34 has other structures, the unlocking operation (the 1st operation) that service personnel carries out becomes the predetermined operation of the structure meeting tripper 34.Such as, as unlocking operation, between the door shield portion 38 that may be required in stop door 10 and landing door device, insert special tool, make this special tool upward direction (or lower direction) mobile.

Door shield portion 38 is the parts when stop door 10 is closed close to the end face of stop door 10.Door shield portion 38 is parts of landing door device.Door shield portion 38 forms the fixed body of hoistway 1.

Detecting device 35 is the devices entering hoistway 1 (also comprising the situation that will enter) for detecting service personnel.Detecting device 35 has electric switch 39.Detecting device 35 is located at the fixed body of hoistway 1.Detecting device 35 is configured at the position when stop door 10 is closed close to stop door 10.

In the present embodiment, as an example of detecting device 35, the situation of the main portions being only made up of detecting device 35 switch 39 is shown.In addition, in the present embodiment, switch 39 is fixed on door shield portion 38.

Movement device 36 is for when having carried out unlocking operation (the 1st operation) to tripper 34, makes detecting device 35 detect the device entered of service personnel.Such as, when the key 37 in the hole being inserted into stop door 10 rotates, this rotary motion is converted to other motions by the mechanism of regulation by movement device 36, makes switch 39 action.

Movement device 36 is located at stop door 10.Movement device 36 has movable part 40, mechanism part 41, maintaining part 42, releasing portion 47 (not shown in Fig. 1 to Fig. 4).

Movable part 40 is not for making the position of switch 39 actions (the 1st position) and being shifted between the position of switch 39 action (the 2nd position) for making.The movable part 40 usual running of such as elevator (time) when usual is configured at the 1st position.

Maintaining part 42, for when movable part 40 is configured at the 2nd position, keeps this to be configured at the state of the 2nd position.Maintaining part 42 is such as by the mechanism exerted a force to movable part 40 all the time or formed to make movable part 40 can not enter line-locked mechanism from the mode of the 2nd position movement.When movable part 40 is configured at the 2nd position, if do not remove the maintenance function of maintaining part 42, then movable part 40 does not return to the 1st position.

Mechanism part 41, by when carrying out unlocking operation to tripper 34, is formed for mechanism movable part 40 being configured at the regulation of the 2nd position.Such as, the motion of the regulation produced by above-mentioned unlocking operation is converted to other motions by mechanism part 41, makes movable part 40 be displaced to the 2nd position.When stop door 10 is closed, the movable part 40 being configured at the 2nd position contacts with detecting device 35.By making movable part 40 contact with detecting device 35, and make switch 39 action.

Releasing portion 47 is for removing the maintenance function of maintaining part 42.When the operation that service personnel specifies from stop 2 pairs of releasing portion 47 (the 2nd operation), the movable part 40 being configured at the 2nd position can be made to return to original position (being namely configured at the 1st position).

Below, the concrete 26S Proteasome Structure and Function of movement device 36 is also described with reference to Fig. 5 and Fig. 6.

Fig. 5 is the front view of the movement device of the elevator car safety that embodiments of the present invention 1 are shown.Fig. 6 is the birds-eye view of the movement device of the elevator car safety that embodiments of the present invention 1 are shown.

Movable part 40 such as with relative to stop door 10 along evolution to and close the back side that the direction mode moved freely is located at door-plate 11.Fig. 5 and Fig. 6 show movable part 40 be configured at not from the end face of stop door 10 (door-plate 11) outstanding draw in position (the 1st position).43 represent the projection being located at movable part 40, and 44 represent the fixed parts being located at stop door 10.When movable part 40 from draw in position relative to stop door 10 to close direction move time, because projection 43 contacts fixed parts 44, make this move stopping.When projection 43 contacts fixed parts 44, movable part 40 is configured at one end from the outstanding extrusion position (the 2nd position) of the end face (to side, door shield portion 38) of stop door 10.

Maintaining part 42 is by such as being formed by the spring closing direction pressing of the other end of movable part 40 to stop door 10.Fastener 45 is provided with at stop door 10.When usual, the claw 46 of the other end of movable part 40 hangs on fastener 45, and thus, even if be subject to power from maintaining part 42, movable part 40 is also maintained at and draws in position.

The bar-like member of the L-shaped that mechanism part 41 is such as moved up and down by an end is formed.The parts in the hole forming key 37 are fixed in the other end of mechanism part 41.Illustrate in Fig. 5: when the key 37 inserted in the hole of stop door 10 is rotated to A direction, the situation that can unlock stop door 10.

When the key 37 in the hole of inserting stop door 10 rotates to the direction specified (being A direction in Fig. 5), mechanism part 41 rotates to the direction identical with key 37.When mechanism part 41 rotates to A direction, an end of mechanism part 41 is moved downwards, and claw 46 departs from from fastener 45.When claw 46 departs from from fastener 45, movable part 40 maintained portion 42 presses and moves to closing direction, is configured in extrusion position.After movable part 40 is configured at extrusion position, maintaining part 42 is still to closing direction pressing movable part 40.Therefore, if there is no External Force Acting, after movable part 40, be still configured at extrusion position.

Releasing portion 47 has such as removes rod 48, opening 49, cover 50.

Remove rod 48 and be located at movable part 40.Remove rod 48 to be shifted along with movable part 40.Remove rod 48 to configure in the mode extended upward from movable part 40.

Opening 49 is formed by the elongated hole being formed at stop door 10.The moving direction configuration of the long edge movable part 40 of opening 49.In the present embodiment, the opening and closing direction configuration of the long edge stop door 10 of opening 49.Opening 49 is aimed at the position of the upper end of removing rod 48 and is formed at stop door 10.Move period from drawing in position to extrusion position at movable part 40, a part for movable part 40 is opposed with opening 49.Stop door 10 is located at by cover 50.Cover 50 configures in the mode of the upper end covering opening 49 and hook stick 48 from hoistway 1 side.

The service personnel of elevator when making the movable part 40 being configured at the 2nd position return to the 1st position, from stop 2 side by special tool (not shown) insertion opening 49.Service personnel makes releasing rod 48 relative to stop door 10 to evolution to movement by special tool, is hung on fastener 45 by claw 46.Thus, movable part 40 return-to-home position can be made.

Because releasing portion 47 has cover 50, this aforesaid operations of maintenance function therefore removing maintaining part 42 cannot carry out from hoistway 1 side, can only carry out from stop 2 side.That is, when the maintenance function of maintaining part 42 is removed, service personnel must be positioned at stop 2.Thus, ensure that the safety of service personnel.

Fig. 7 is the figure of the circuit structure of the elevator car safety that embodiments of the present invention 1 are shown.As mentioned above, landing door device (detecting device 35) is located at each floor that car 3 stops.Label 39-1 shown in Fig. 7 represents the normally closed contact of the switch 39 that the stop 2 of ground floor has.39-2 represents the normally closed contact of the switch 39 that the stop 2 of the second layer has.39-N represents the normally closed contact of the switch 39 that the stop 2 of n-th layer has.

The switch 39 (contact) being arranged at each layer is connected in series with control setup 7.That is, the switch 39 (contact 39-2) of the switch 39 (contact 39-1) of ground floor, the second layer, the switch 39 (contact 39-N) of n-th layer are connected in series with control setup 7.

If in all landing door devices, movable part 40 does not contact with detecting device 35 (namely switch 39 is not operating), then the signal specified is input to control setup 7.

Carry out unlocking operation in any landing door device after, the movable part 40 of this landing door device is configured at the 2nd position.Therefore, if the stop door 10 of this stop 2 is closed, then movable part 40 contact detecting apparatus 35.When movable part 40 contacts with detecting device 35, switch 39 carries out action, and corresponding contact disconnects.The incoming signal of control setup 7 becomes 0V, detects that service personnel has entered hoistway 1 thus.Control setup 7 when detecting that service personnel enters hoistway 1, the running under putting maintenance into practice pattern.

If have the safety device of said structure, even if when the cut-out etc. that there occurs power supply, also reliably can detect that service personnel has unlocked stop door 10.That is, when service personnel carries out unlocking operation to tripper 34, movable part 40 is given prominence to from the end face of door-plate 11, and this state is maintained.Even if this state is also constant when there is supply disconnecton, therefore still can correctly detect after power up.During service personnel is stranded in hoistway 1, the running under service mode can be proceeded.

Detecting device 35 is located at the fixed body of hoistway 1.Therefore, there is no need on moving part (i.e. stop door 10), implement wiring, there is no the worry broken.

The movable part 40 of movement device 36 is located at door-plate 11, and the opening and closing direction along stop door 10 is moved.In addition, detecting device 35 is located at door shield portion 38.Therefore, movement device 36 can be configured in the position close to tripper 34 (insertion portion of key 37).Misoperation or the fault of movement device 36 can be reduced.Movement device 36 can also be realized by simple structure.

In the present embodiment, in order to make movable part 40 return to the 1st position, the situation of carrying out in special tool insertion opening 49 operating is illustrated.As additive method, also can consider such as special tool to be inserted between stop door 10 and door shield portion 38 to operate.Under these circumstances, opening 49 need not be formed on stop door 10.

(embodiment 2)

Fig. 8 is the front view of the movement device of the elevator car safety that embodiments of the present invention 2 are shown.Fig. 9 is the birds-eye view of the movement device of the elevator car safety that embodiments of the present invention 2 are shown.

For the safety device in present embodiment, the structure of its movement device 36 and different disclosed in embodiment 1.In embodiment 1, the situation using the special tool different from key 37 to remove the maintenance function of maintaining part 42 is illustrated.In the present embodiment, the situation using key 37 to remove the maintenance function of maintaining part 42 is described.

The releasing portion 47 of movement device 36 has such as removes rod 48 and 51, cover 50 etc.

Remove rod 51 to be such as made up of the bar-like member of L-shaped.Remove rod 51 with relative to stop door 10 along evolution to and close the mode moved freely in direction and arrange.One end of removing rod 51 is configured at the side, door shield portion 38 of removing rod 48.Remove the other end of rod 51 by axle 51a and elongated hole 41a, be connected with mechanism part 41.

In the safety device with said structure, when the key 37 in the hole of inserting stop door 10 rotates to the direction specified (being A direction in Fig. 8), mechanism part 41 rotates to the direction identical with key 37.When mechanism part 41 rotates to A direction, an end of mechanism part 41 is moved downwards, and claw 46 departs from from fastener 45.When claw 46 departs from from fastener 45, movable part 40 maintained portion 42 presses and moves to closing direction, is configured in extrusion position.After movable part 40 is configured at extrusion position, maintaining part 42 is still to closing direction pressing movable part 40.Therefore, if there is no External Force Acting, after movable part 40, be still configured at extrusion position.

Key 37, when making the movable part 40 being configured at extrusion position return to draw in position, rotates to the direction (being B direction in Fig. 8) contrary with during above-mentioned unlocking operation by the service personnel of elevator.When key 37 rotates to B direction, mechanism part 41 rotates to the direction identical with key 37.When mechanism part 41 rotates to B direction, remove rod 51 relative to stop door 10 to evolution to movement.When releasing rod 51 is to evolution to when slightly moving, the ends contact removing rod 51 removes rod 48.Remove rod 51 further to evolution to movement, remove rod 48 thus by releasing rod 51 pressing, movable part 40 is to evolution to movement.Key 37 is rotated the position to regulation to B direction, claw 46 hangs on fastener 45 thus, and movable part 40 is configured at the 1st position.

If have the safety device of said structure, the service personnel of elevator can use key 37 to carry out the unlocking operation of tripper 34 and both the operations of maintenance function removing maintaining part 42.Therefore, it is possible to raising workability.

When the unlocking operation (the 1st operation) carried out tripper 34 is different from the operation in present embodiment, as long as be configured to by carrying out the operation of contrary with unlocking operation (oppositely), to make the movable part 40 being configured at the 2nd position be configured at the 1st position.

Other structure is identical with the structure disclosed in embodiment 1.

(embodiment 3)

Figure 10 is the figure of the circuit structure of the elevator car safety that embodiments of the present invention 3 are shown.

Label 39-11 shown in Figure 10 represents the open contact of the switch 39 that the stop 2 of ground floor has.39-21 represents the open contact of the switch 39 that the stop 2 of the second layer has.39-N1 represents the open contact of the switch 39 that the stop 2 of n-th layer has.

The switch 39 (contact) being arranged at each layer is connected in parallel with control setup 7.That is, the switch 39 (contact 39-21) of the switch 39 (contact 39-11) of ground floor, the second layer, the switch 39 (contact 39-N1) of n-th layer are connected in parallel with control setup 7.

The switch 39 (contact) being arranged at each layer is connected in series with relay 52.The switch 39 (contact 39-11) of relay 52-1 and ground floor is connected in series.The switch 39 (contact 39-21) of relay 52-2 and the second layer is connected in series.The switch 39 (contact 39-N1) of relay 52-N and n-th layer is connected in series.

Label 52-11 shown in Figure 10 represents the relay contact of relay 52-1.Label 52-21 represents the relay contact of relay 52-2.Label 52-N1 represents the relay contact of relay 52-N.Relay contact 52-11,52-21 ..., 52-N1 and control setup 7 be connected in series.

If in all landing door devices, movable part 40 does not contact with detecting device 35 (namely switch 39 is not operating), then all relay contact closures, and the signal of regulation is input to control setup 7.

Carry out unlocking operation in any landing door device after, the movable part 40 of this landing door device is configured at the 2nd position.Therefore, if the stop door 10 of this stop 2 is closed, then movable part 40 contact detecting apparatus 35.When movable part 40 contacts with detecting device 35, switch 39 carries out action, the closing of contact of this switch 39.Thus, corresponding relay carries out action, and relay contact disconnects.The incoming signal of control setup 7 becomes 0V, detects that service personnel has entered hoistway 1 thus.Control setup 7 when detecting that service personnel enters hoistway 1, the running under putting maintenance into practice pattern.

If have the safety device of said structure, when movable part 40 non-contact detecting apparatus 35, the contact of switch 39 can be set to "open" state.Therefore, various switch can be used as switch 39.

Other structure is identical with the structure disclosed in embodiment 1 or 2.

(embodiment 4)

Figure 11 is the figure of the structure of the elevator car safety that embodiments of the present invention 4 are shown.About the safety device in present embodiment, the structure of its detecting device 35 and movement device 36 and different disclosed in embodiment 1 to 3.

Detecting device 35 has electric switch 53.Fabricated section 20 is located at by switch 53.Switch 53 is configured at the position when stop door 10 is closed close to door hanger 12.

Movement device 36 has such as movable part 54, mechanism part 55, maintaining part 56, releasing portion (not shown in fig. 11).

Movable part 54 such as with relative to stop door 10 along evolution to and close the direction mode moved freely and be located at door hanger 12.Figure 11 shows movable part 54 and is configured at the state drawing in position (the 1st position).In the present embodiment, drawing in position is that movable part 54 is not from the position that the end face opposed with fabricated section 20 of door hanger 12 is outstanding.Movable part 54 moves to closing direction from drawing in position relative to door hanger 12, and one end is configured at from the outstanding extrusion position (the 2nd position) of the above-mentioned end face (to fabricated section 20 side) of door hanger 12.

Maintaining part 56 is by such as being formed by the spring closing direction pressing of the other end of movable part 54 to stop door 10.

When having carried out unlocking operation (the 1st operation) to tripper 34, mechanism part 55 has been shifted downwards.When mechanism part 55 moves downwards, movable part 54 maintained portion 56 presses and moves to closing direction, is configured in extrusion position.If there is no External Force Acting, after movable part 54, be still configured at extrusion position.

If have the safety device of said structure, then the major part of movement device 36 can be configured at door hanger 12.Even if when a part for door-plate 11 is provided with glass, movement device 36 is set with also can not damaging the aesthetic property of stop door 10.

If have the safety device of said structure, then can be applied to the stop door 10 of two evolution formula.

Other structure is identical with structure disclosed in embodiment 1 to 3.

(embodiment 5)

Figure 12 is the figure of the structure of the elevator car safety that embodiments of the present invention 5 are shown.About the safety device in present embodiment, the structure of its detecting device 35 and movement device 36 and different disclosed in embodiment 1 to 4.

Movement device 36 has such as movable part 57, mechanism part 58, maintaining part 59, releasing portion (not shown in fig. 12).

Movable part 57 is such as located at the back side of door-plate 11 in mobile along the vertical direction mode freely.Movable part 57 is configured at a upper lateral part of door-plate 11.Movable part 57 is configured in door-plate 11, that top does not configure door hanger 12 part.

Figure 12 shows movable part 57 and is configured at the state drawing in position (the 1st position).In the present embodiment, drawing in position is that movable part 57 is not from the position that the upper surface (upward) of door-plate 11 is outstanding.Movable part 57 is moved upward from drawing in position, and its upper end is configured at from the outstanding extrusion position (the 2nd position) in the upper surface (upward) of door-plate 11.The state that movable part 57 is configured at extrusion position (the 2nd position) is show in phantom in Figure 12.

Maintaining part 59 is by such as being formed by the spring that the bottom of movable part 57 presses upward.

When having carried out unlocking operation (the 1st operation) to tripper 34, mechanism part 58 has moved in the mode departing from movable part 57.When mechanism part 58 departs from from movable part 57, movable part 57 maintained portion 59 presses and is moved upward, and is configured in extrusion position.If there is no External Force Acting, after movable part 57, be still configured at extrusion position.

Detecting device 35 has electric switch 60 and cam 61.

Fabricated section 20 is located at by switch 60.Switch 60 is configured at the inside of such as landing door device (suspension bracket housing 14).

Cam 61 is for making switch 60 action where necessary.Cam 61 is located at fabricated section 20.When stop door 10 is closed, cam 61 is configured at the top of stop door 10 (door-plate 11).Specifically, when stop door 10 is closed, cam 61 is configured at directly over movable part 57.If movable part 57 is configured at the 2nd position, then when stop door 10 is closed, the roller of the upper end jack-up cam 61 of movable part 57.By this action, cam 61 contact switch 60, makes switch 60 action.

If have the safety device of said structure, detecting device 35 can be configured at fabricated section 20, the stop door 10 of two evolution formula can be applied to.

Because detecting device 35 has cam 61, therefore switch 60 can be configured at the inside of landing door device.The installation of switch 60 or wiring become easy.

Other structure is identical with the structure disclosed in embodiment 1 to 4.

Utilizability in industry

The elevator car safety that the present invention relates to can be applied to the elevator in landing door device with tripper.

Label declaration

1: hoistway

2: stop

3: car

4: counterweight

5: main rope

6: towing machine

7: control setup

8,33: plate

9: pull in detecting device

10: stop door

11,26: door-plate

12,27: door hanger

13,28: door guide rail

14,29: suspension bracket housing

15,30: door roller

16: locking device

17: fixed plate

18: snap close

18a: protrusion

19: detector switch

20: fabricated section

21,51a: axle

22: car door

23: linkage

24: roller

25: arm

31: electrical motor

32: converting unit

34: tripper

35: detecting device

36: movement device

37: key

38: door shield portion

39,53,60: switch

39-1,39-2 ..., 39-N, 39-11,39-21 ..., 39-N1: contact

40,54,57: movable part

41,55,58: mechanism part

41a: elongated hole

42,56,59: maintaining part

43: projection

44: fixed parts

45: fastener

46: claw

47: releasing portion

48,51: remove rod

49: opening

50: cover

52-1,52-2 ..., 52-N: relay

52-11,52-21 ..., 52-N1: relay contact

61: cam

Claims (12)

1. an elevator car safety, it has:
Stop door, it is located at the stop of elevator and opening and closing landing doorway;
Locking device, it locks to described stop door, and is unlocked by the unlimited action of the car door when the car of elevator stops at described stop;
Tripper, it, by by the 1st operation carrying out specifying from described stop, unlocks described locking device;
Detecting device, it is located at the fixed body of hoistway, and has switch; And
Movement device, it is located at described stop door,
Described movement device has:
Movable part, is shifted between its 1st position in regulation and the 2nd position;
Mechanism part, by carrying out the 1st operation to described tripper, described movable part is configured in the 2nd position by this mechanism part; And
Maintaining part, it keeps described movable part to be configured in the state of the 2nd position,
If described movable part is configured in the 2nd position, then, when described stop door is closed, described movable part contacts with described detecting device, makes described switch motion.
2. elevator car safety according to claim 1, wherein,
The door shield portion that described detecting device is located at when described stop door is closed and the end face of described stop door is close,
Described movable part is given prominence to from the described end face of described stop door when being configured in the 2nd position.
3. elevator car safety according to claim 2, wherein,
The described end face of described movable part when being configured in the 1st position not from described stop door is given prominence to,
Described movable part moves from the 1st position to the direction of closing of described stop door, and is configured in the 2nd position.
4. elevator car safety according to claim 1, wherein,
Described movable part is moved upward from the 1st position, and is configured in the 2nd position,
When described stop door is closed, described detecting device is configured at the top of described stop door.
5. elevator car safety according to claim 1, wherein,
Described stop door has:
Door-plate, it is for stopping landing doorway; And
Door hanger, it is located at the top of described door-plate, for suspending described door-plate in midair,
Described movable part is located at described door hanger, and the direction of closing from the 1st position to described stop door is moved, and is configured in the 2nd position.
6. the elevator car safety according to any one in claim 1 to 5, wherein,
Described detecting device has cam, and when described stop door is closed, described cam contact is configured in the described movable part of the 2nd position,
Contact described cam by the described movable part being configured at the 2nd position, make described switch motion.
7. the elevator car safety according to any one in claim 1 to 5, wherein,
Described elevator car safety has the control setup of the operation controlling elevator,
The multiple stops stopped at described car are configured with described detecting device,
Switch and the described control setup of multiple described detecting device are connected in series.
8. the elevator car safety according to any one in claim 1 to 5, wherein,
Described elevator car safety has the control setup of the operation controlling elevator,
The multiple stops stopped at described car are configured with described detecting device,
The switch of multiple described detecting device is connected in series with relay respectively,
Contact and the described control setup of multiple described relay are connected in series.
9. the elevator car safety according to any one in claim 1 to 5, wherein,
Described movement device has releasing portion, and the described movable part being configured at the 2nd position by being operated by the carry out specifying from described stop the 2nd, and is configured in the 1st position by this releasing portion.
10. the elevator car safety according to any one in claim 1 to 5, wherein,
Described movement device has releasing portion, and by carrying out the reverse operating of the 1st operation to described tripper, the described movable part being configured at the 2nd position is configured in the 1st position by this releasing portion.
11. elevator car safeties according to claim 9, wherein,
Described releasing portion can not operate from the hoistway side of described stop door.
12. elevator car safeties according to claim 10, wherein,
Described releasing portion can not operate from the hoistway side of described stop door.
CN201280071592.5A 2012-03-22 2012-03-22 Elevator car safety CN104203795B (en)

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CN104203795B true CN104203795B (en) 2016-01-20

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WO2017023927A1 (en) * 2015-08-04 2017-02-09 Otis Elevator Company Elevator car door interlock
WO2017149336A1 (en) * 2016-03-04 2017-09-08 Otis Elevator Company Elevator system landing door unlocking mechanism
CN107473061B (en) 2016-06-08 2020-10-16 奥的斯电梯公司 Maintenance safety device for elevator system and operation method thereof
WO2018079032A1 (en) * 2016-10-27 2018-05-03 三菱電機株式会社 Elevator landing door opening detection device and elevator
EP3418238B1 (en) * 2017-06-22 2020-07-08 Otis Elevator Company Elevator lintel door lock safety devices
US20190031468A1 (en) * 2017-07-31 2019-01-31 Otis Elevator Company Mechanical hoistway access control device
US10526172B2 (en) * 2017-09-29 2020-01-07 Otis Elevator Company Mechanical hoistway access control device

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KR20140143181A (en) 2014-12-15
JPWO2013140575A1 (en) 2015-08-03
CN104203795A (en) 2014-12-10
KR101624825B1 (en) 2016-05-26
DE112012006072T5 (en) 2014-12-04
WO2013140575A1 (en) 2013-09-26
JP5743023B2 (en) 2015-07-01

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