WO2017081789A1

WO2017081789A1 - Elevator device

Info

Publication number: WO2017081789A1
Application number: PCT/JP2015/081856
Authority: WO
Inventors: 啓太島林; 昌也北澤
Original assignee: 三菱電機株式会社
Priority date: 2015-11-12
Filing date: 2015-11-12
Publication date: 2017-05-18
Also published as: JPWO2017081789A1; JP6440862B2

Abstract

The purpose of the present invention is to provide an elevator device such that, if a maintenance worker conducts work on a car, a door is erected on the landing side at the top of the car so as to prevent the entry of the worker into a landing door device or a car door device when the car is raised, and thus it is possible to effectively prevent part or all of the body of the worker from being trapped between a supporting member and the car door device in the vicinity of the ceiling of a hoistway. This elevator device is equipped with: a first supporting member which has one side fixed to the top of a first guide rail and the other side extending toward the landing; a second supporting member which has one side fixed to the top of a second guide rail and the other side extending toward the landing; a third supporting member which has one side fixed to the landing side of the first supporting member and the other side fixed to the landing side of the second supporting member; and an opening and closing door which is erected at the top of the car further towards the opposite side to the landing side than the third supporting member as seen in a vertical projection plane, and allows the worker to pass therethrough when moving between the landing and a work area located at the top of the car.

Description

Elevator equipment

The present invention relates to a support structure effective for a machine room-less elevator.

In the machine room-less elevator, a support member that fixes the rope end to the top of the hoistway is required. There is a method to attach the support member to the guide rail and support the load at the end of the rope with a cantilever beam, but the bending moment acting on the guide rail when the rope end is separated from the guide rail on the landing side due to the layout Cannot be constructed because The same applies to electrical devices such as control panels installed at positions away from the guide rail to the landing side. Therefore, the tension of the suspension means acting on the support member is divided and borne by a plurality of support members (side beams), and the support member is fixed to the machine base and the car side guide rail, so the support member is attached to the building There is a configuration (for example, Patent Document 1) that can reduce the design effort for installing the elevator apparatus in a building.

WO2012 / 023204

In such an elevator system, when maintenance personnel work on the car, when the car is lifted, depending on the work position of the maintenance person near the hoistway ceiling, maintenance is performed between the support member and the car door device. There was a problem that some or all of the members' bodies were caught.

The present invention has been made to solve the above-described problems, and when maintenance personnel work on a car, on the route that passes when going from the landing to the work area at the top of the car. Thus, by erecting a door on the landing side at the top of the car, when the car is raised, entry to the landing door device or the car door device side is prevented. Accordingly, an object of the present invention is to provide an elevator apparatus that can effectively prevent part or all of a maintenance worker's body from being sandwiched between a support member and a car door apparatus near the hoistway ceiling.

The elevator apparatus according to the present invention includes a car and a balance that are suspended so as to be lifted and lowered via an elevator rope of a rope hook type in which a rope terminal portion is fixed to an upper part of the hoistway to a hoist provided in the hoistway. In an elevator apparatus having a weight and a plurality of guide rails for guiding the raising and lowering of the car and the counterweight, when the hoistway is viewed from the vertical projection plane, on the counterweight side or on the top of the hoistway opposite to the counterweight A first support member disposed between the hoistway wall and the car in a substantially horizontal direction, one fixed to the upper portion of the first guide rail and the other extending to the landing side; Located on the opposite side of the support member between the hoistway wall and the car in a substantially horizontal direction, one is fixed to the top of the second guide rail and the other is extended to the landing side. Between the second support member and the vertical projection surface of the car door device and the hoistway wall on the landing side, one on the landing side of the first support member and the other on the second side A third support member that is fixed to the landing side of the support member, and an upper part of the car on the side opposite to the third support member when viewed from the vertical projection plane. And an openable / closable door that can be passed when maintenance personnel come and go to the work area.

In the present invention, the first support member is one and the second support member is the second support member, and the third support member is connected and fixed to the landing side. When the car is lifted by installing an openable door that is erected at the top of the car on the side opposite the landing and is accessible when maintenance personnel come from the landing to the work area above the car, Maintenance personnel prevent entry from the work area at the top of the car to the landing door device or the car door device side. This enables effective use of the space in the hoistway and simplification of the building plan, and a part or all of the maintenance worker's body is sandwiched between the third support member and the car door device near the hoistway ceiling. Thus, it is possible to realize an elevator apparatus that can effectively prevent such a situation.

It is a top view which shows the whole elevator apparatus by Embodiment 1 of this invention. It is a side view of FIG. 1 which shows the winding machine side by Embodiment 1 of this invention. It is a side view of FIG. 1 which shows the cage rope stop side by Embodiment 1 of this invention. It is a front view which shows the principal part of the elevator apparatus by Embodiment 1 of this invention. FIG. 5 is a plan view of FIG. 4 showing a closed state of a door according to Embodiment 2 of the present invention. FIG. 5 is a plan view of FIG. 4 showing an open state of a door according to Embodiment 2 of the present invention. It is a front view which shows the principal part of the elevator apparatus by Embodiment 2 of this invention. It is a top view which shows the whole elevator apparatus by Embodiment 3 of this invention.

Embodiment 1 FIG.
1 to 3 illustrate an elevator apparatus according to Embodiment 1 of the present invention. FIG. 1 is a plan view showing a main part, FIG. 2 is a side view of the hoisting machine side showing the whole apparatus, and FIG. It is a side view by the side of a cage rope stop which shows the whole apparatus.

In the figure, in the hoistway 1,

car guide rails

2 and 3 are installed as first guide rails, and counterweight guide rails 4 and 5 are installed as second guide rails. The car guide rail 2 is fixed to the hoistway side wall 1 a in the vicinity of the intermediate portion in the depth direction of the hoistway 1. The car guide rail 3 is fixed to the hoistway side wall 1 b at the same position as the car guide rail 2 in the depth direction of the hoistway 1. That is, the

car guide rails

2 and 3 face each other.

The counterweight guide rails 4 and 5 are disposed in the vicinity of the side wall 1b in the hoistway 1 and face each other. The counterweight guide rails 4 and 5 are fixed to the rear wall of the hoistway at the same position in the width direction of the hoistway 1.

The car 6 is raised and lowered in the hoistway 1 along the

car guide rails

2 and 3. The counterweight 7 is moved up and down in the hoistway 1 along the counterweight guide rails 4 and 5. The counterweight 7 is disposed on the side of the car 6 so as to face the side surface of the car 6 when positioned at the same height as the car 6.

A hoisting machine 8 that raises and lowers the car 6 and the counterweight 7 is installed at the upper ends of the counterweight guide rails 4 and 5. Most of the hoisting machine 8 is arranged directly above the counterweight 7. Further, as the hoisting machine 8, a thin hoisting machine having an axial dimension smaller than a dimension in a direction perpendicular to the axial direction is used.

A first support member 9 is horizontally disposed in the vicinity of the top hoistway side wall 1 a in the hoistway 1. One of the first support members 9 is fixed to the car guide rail 2 at the upper part in the hoistway 1. The other of the first support members 9 is extended to the landing side.

A second support member 10 is horizontally disposed in the vicinity of the top hoistway side wall 1b in the hoistway 1. One of the second support members 10 is fixed to the counterweight guide rail 5 at the upper part in the hoistway 1, and the other is extended to the landing side.

In the vicinity of the top hoistway side wall 1 c in the hoistway 1, one is fixed to the landing side of the first support member 9 and the other is fixed to the landing side of the second support member 10. 11 is disposed in a substantially horizontal direction between the vertical projection surface of the car door device 12 and the hoistway wall 1c on the landing side. That is, since the first support member 9, the second support member 10, and the third support member 11 are connected and fixed, the load acting on any one of the three support members is the car guide rail 2 and The structure is such that it is received by the counterweight guide rail 5.

A door 14 is erected on the route that passes when the vehicle 6 travels from the landing side to the work area 13 on the upper side of the car 6 and on the upper landing side of the car 6. The door 14 is an openable / closable door through which maintenance personnel can pass, and is disposed on the opposite side of the landing from the third support member 11 when viewed from the vertical projection plane. A hinge portion (not shown) of the door 14 is fixed to a landing-side column of the car upper handrail 15. The car upper handrail 15 is provided at a total of three locations, one on the counter landing (depth) side and two on both sides parallel to the depth direction, and therefore does not include the door 14 on the landing side. That is, the work area 13 is formed as an area surrounded by the door 14 and the car handrail 15.

The car 6 and the counterweight 7 are suspended by a 2: 1 roping method, and are lifted and lowered in opposite directions by the rotation of the hoisting machine 8. One end of the rope 16 for raising and lowering the car 6 and the counterweight 7 is connected to the car side rope stopper 17, and the other end is wrapped around the lower part of the car 6, and further wrapped around the counterweight 7. After being connected, it is connected to a tether stop (not shown) on the counterweight side.

A car-side rope stopper 17 is fixed to the first support member 9. In addition, the car side rope stopper 17 is disposed so that a part of the car suspension wheel 6a overlaps when viewed from directly above. Further, an elevator control panel 18 is connected and fixed to the first support member 9 in the vicinity of the landing side of the first hoistway side wall 1a at the top in the hoistway 1. Since the first support member 9 receives the load only with the car guide rail 2 and the counterweight guide rail 5, the car side rope stopper 17 and the elevator control panel 18 do not depend on the building structure in the hoistway 1. Can be placed.

Next, the operation of the first embodiment configured as described above will be described. In FIG. 1, when going from the landing side near the ceiling of the hoistway 1 to the upper work area 13 of the car 6, the door 14 is closed first, so that it is opened by manually pulling it forward. The maintenance staff passes through the opened door 14 and completes the movement from the landing side to the work area 13 and then manually closes the opened door 14 again. The maintenance staff works in the work area 13 after closing the door 14.

When the maintenance worker raises the car 6 while working in the work area 13, the door 14 is closed, so that the maintenance worker is directly above the third support member 11 when viewed from the vertical projection plane. You can't enter. Therefore, when a maintenance worker raises the car 6 from the work area 13, a part of the maintenance worker's body is prevented from being caught between the car door device 12 and the third support member 11.

In addition, as viewed from the vertical projection plane, the installation position of the door 14 may be set in the vicinity of the landing side, so that a space for maintenance personnel to stand on the outside (the landing side) of the door 14 may be reduced. Specifically, in FIG. 6, when the distance (A) from the door 14 to the landing door is 300 mm or less as viewed from the vertical projection plane, the maintenance person stands on the outside (the landing side) of the door 14. It is difficult to close the door 14. As a result, when the door 14 is closed, maintenance personnel cannot work while standing on the outside (the landing side) of the door 14, so when the maintenance worker raises the car 6 from the work area 13, It is possible to effectively prevent a part of the body from being sandwiched between the car door device 12 and the third support member 11.

As described above, according to the first embodiment, by the rope hook of the system in which the car side rope stopper 17 which is a rope terminal part is fixed to the hoisting machine 8 provided in the hoistway 1 at the upper part of the hoistway 1. In an elevator apparatus having a car 6 and a counterweight 7 that are suspended so as to be able to be lifted and lowered via an elevator rope, and a plurality of guide rails that guide the lifting and lowering of the car 6 and the counterweight 7, the hoistway 1 is vertically projected. When viewed from the surface, the hoistway 1 is located on the opposite side of the counterweight 7 at the top of the hoistway 1 between the hoistway side wall 1a and the car 6, and one is fixed to the upper part of the car guide rail 2 and the other. Is arranged in a substantially horizontal direction between the hoistway side wall 1b and the car 6 on the opposite side of the first support member 10, and one side is a counterweight guide. Leh 5 is arranged in a substantially horizontal direction between the second support member 10 that is fixed to the upper part of 5 and the other is extended to the landing side, and the hoistway wall 1c on the landing side from the vertical projection surface of the car door device 12. A third support member 11 fixed to the landing side of the first support member 9 and the other fixed to the landing side of the second support member 10, and a third support member as viewed from the vertical projection plane. And an openable door 14 that is erected from the platform 6 on the opposite side of the platform 11 and through which maintenance personnel can travel from the platform to the work area 13 above the platform 6. By fixing devices such as the car side rope stopper 17 and the elevator control panel 18 to either the first support member 9, the second support member 10 or the third support member 11, the top of the hoistway 1 Between the car 6 near the landing and the hoistway wall 1c, or the car It can be arranged independently of the device such as a control panel on the building structure in the space between the A device 12 or the landing door apparatus and the ceiling of the hoistway 1. Further, when the maintenance worker works in the work area 13, it prevents the maintenance worker from entering the car door device 12 or the landing door device side between the third support member 11 and the car door device 12. The elevator apparatus which can prevent effectively that a part or all of a body is pinched can be implement | achieved.

Embodiment 2. FIG.
5 to 7 illustrate an elevator apparatus according to Embodiment 2 of the present invention. FIG. 5 is a plan view showing the door 14 in a closed state, and FIG. 6 is a plan view showing the door 14 in an open state. FIG. 7 is a front view showing a main part of the elevator apparatus. The elevator apparatus according to Embodiment 2 of the present invention is different from the elevator device in that the detection switch 19 for detecting the open / closed state of the door 14 is provided.

In the figure, the door 14 is provided with a detection switch 19 for detecting the open / closed state of the door 14. The detection switch 19 detects the open / closed state of the door 14 and can output the detected state as an electrical signal or a contact state. The electrical signal or contact state indicating the open / closed state of the door 14 detected by the detection switch 19 is passed through a control signal cable or the like (not shown) so as to be recognized by the elevator control panel 18 that controls the operation of the car 6. Connected.

Next, the operation of the second embodiment configured as described above will be described. When the door 14 detected by the detection switch 19 is in the closed state, the elevator control panel 18 permits the operation instruction of the car 6 from the work area 13, so that a maintenance worker working in the work area 13 opens the car 6. It becomes possible to drive. On the other hand, when the door 14 detected by the detection switch 19 is in the open state, the elevator control panel 18 does not permit the operation instruction of the car 6 from the work area 13. Thus, even when one maintenance worker does not notice that the other maintenance worker is working directly above the door 14 as viewed from the vertical projection plane, or when the door 14 is forgotten to close, the car 6 cannot be operated. . Therefore, when a maintenance worker raises the car 6 from the work area 13, a part or all of the maintenance worker's body is prevented from being sandwiched between the third support member 11 and the car door device 12.

Further, a lock mechanism 20 that locks or unlocks the door 14 may be provided. The lock mechanism 20 is provided on the door 14 and is connected via a signal cable or the like (not shown) so that the operation state (operation or stop) of the car 6 is output from the elevator control panel 18. The lock mechanism 20 unlocks or locks the door 14 according to the operating state of the car 6. Specifically, the door 14 is unlocked when the car 6 is stopped, and the door 14 is forcibly locked when the car 6 is operating. Furthermore, when the lock mechanism 20 does not lock the door 14 due to the door 14 being opened or half-opened, the lock mechanism 20 outputs a state where the door 14 is not locked to the elevator control panel 18. You may control so that the driving | operation of the passenger car 6 is not permitted.

As described above, according to the second embodiment, the detection switch 19 that detects the open / close state of the door 14 is provided, and the elevator control panel 18 detects the state of the car 6 according to the open / close state of the door 14 detected by the detection switch 19. By controlling the operation, when the maintenance worker works in the work area 13, if the door 14 is in the open state, the operation instruction of the car 6 from the work area 13 is not permitted. Accordingly, since the car 6 cannot be operated when the door 14 is in the open state or the half-open state, a part or all of the body of the maintenance worker is sandwiched between the third support member 11 and the car door device 12. It is possible to realize an elevator apparatus that can be prevented automatically.

Further, as described above, according to the second embodiment, the lock mechanism 20 that unlocks or locks the door 14 is provided, and the lock mechanism 20 is a door according to the operation state of the car 6 output from the elevator control panel 18. 14 is unlocked or locked. Thus, when the maintenance worker works in the work area 13, when the car 6 is stopped, the door 14 is unlocked, so that the maintenance worker is not obstructed. Further, when the car 6 is in operation, the door 14 is locked, so that it is possible to reliably prevent maintenance personnel from accidentally opening the door 14 and going outside.

Embodiment 3 FIG.
FIG. 8 illustrates an elevator apparatus according to Embodiment 3 of the present invention, and is a plan view showing the entire elevator apparatus. In the elevator apparatus according to Embodiment 3 of the present invention, the counterweight guide rails 4 and 5 and the counterweight 7 are provided on the side opposite to the landing 1d (depth side) in the hoistway 1, and the second The difference is that one of the support members 10 is fixed to the car guide rail 3, and the same symbols are added to the other similar parts, and the description is omitted.

Depending on the elevator, the positions of the counterweight guide rails 4 and 5 and the counterweight 7 are not necessarily provided on the landing side, so one of the second support members 10 is one of the counterweight guide rails 4 and 5. There are cases where it cannot be fixed to. In such a case, one of the second support members 10 may be fixed to the car guide rail 3 instead of the counterweight guide rails 4 and 5. Further, the car guide rail 2 may be fixed to the intermediate portion of the first support member 9 and one end thereof may be fixed to the counterweight guide rails 4 and 5. In this case, since the load acting on the first support member 9 is supported at three points at both ends and in the middle, the rigidity is higher than in the two-point support structure of the first and second embodiments. can do.

As described above, according to the third embodiment, when one of the second support members 10 is fixed, the position of the counterweight guide rails 4 and 5 and the counterweight 7 is not affected. Thus, an elevator apparatus that can achieve the same effects as those of the first and second embodiments can be realized.

In the first embodiment, the car-side rope stopper 17 and the control panel 18 are fixed to the first support member 9, but the layout of the devices arranged in the hoistway 1 and the devices arranged in the hoistway In order to avoid interference, the second support member 10 or the third support member 11 may be selected and fixed.

1 hoistway, 2, 3, car guide rail, 4, 5, weight guide rail, 6 car, 7 counterweight, 8 hoisting machine, 9 first support member, 10 second support member, 11 third Support member, 12 car door device, 13 work area, 14 door, 15 car handrail, 16 rope, 17 car side rope stop, 18 elevator control panel, 19 detection switch, 20 lock mechanism

Claims

A car and a counterweight that can be hung up and down via an elevator rope by a rope hook in which a rope end is fixed to the upper part of the hoistway to a hoist provided in the hoistway, and the car and the counterweight In an elevator apparatus having a plurality of guide rails that guide lifting and lowering of weights,
When the hoistway is viewed from a vertical projection plane, the hoistway top portion on the counterweight side or the opposite side of the counterweight is disposed in a substantially horizontal direction between the hoistway wall and the carriage, one of which is A first support member fixed to the upper portion of the first guide rail and the other extending to the landing side;
Located on the opposite side of the first support member between the hoistway wall and the car in a substantially horizontal direction, one is fixed to the top of the second guide rail and the other is extended to the landing side. A second support member,
Between the vertical projection surface of the car door device and the hoistway wall on the landing side, it is arranged in a substantially horizontal direction, one on the landing side of the first support member and the other on the landing side of the second support member A third support member fixed to each side,
Standing at the upper part of the car on the opposite side of the landing from the third support member when viewed from the vertical projection plane, it is possible to pass maintenance personnel from the landing to the work area at the upper part of the car. An elevator device comprising an openable door.
2. The elevator apparatus according to claim 1, wherein a terminal portion of the elevator rope is fixed to either the first support member, the second support member, or the third support member.
The apparatus such as an elevator control panel provided in the hoistway is connected and fixed to either the first support member, the second support member, or the third support member. The elevator apparatus in any one of Claim 1 or Claim 2.
A detection means for detecting an open / closed state of the door is provided, and the elevator control panel controls the operation of the car according to the open / closed state of the door detected by the detecting means. The elevator apparatus in any one of.
The lock mechanism for unlocking or locking the door is provided, and the lock mechanism unlocks or locks the door according to the operating state of the car output from the elevator control panel. The elevator apparatus according to any one of 1 to 4.