JP2018052647A - Machine-roomless elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To create a rational layout which can arrange a hoist and all control devices or the like in a hoistway in a position higher than a top floor, and to constitute a machine-roomless elevator as an emergency elevator.SOLUTION: This machine-roomless elevator comprises: a hoist 25 which is arranged at an apex of a hoistway 2 at one side-face side of a car 20; a balance weight 22 which lifts at a back face side of the car 20; an oblong first control device 40 arranged in the hoistway 2 at the other side-face side of the car 20; and an oblong second control device 42 which is arranged in a space secured in the hoistway 2 in a position near the first control device 40 at a back face side of the car 20, and smaller than the first control device. Lower ends of the hoist 25, the first control device 40 and the second control device 42 are located in positions higher than a height of a floor face 52 of the top floor.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a machine roomless elevator.

  Japan's laws governing elevators have traditionally obliged to install emergency elevators when the building height and floor area exceed certain conditions. Emergency elevators are normally used for passengers and baggage, but they are used for fire extinguishing activities in the event of a fire or for rescue of passengers confined in a car room. .

  Conventionally, in this type of emergency elevator, it has been obliged to install a fireproof and waterproof machine room in the upper part of the hoistway, and to install an elevator control device and a hoisting machine in this machine room. This is because the emergency elevator is used for extinguishing fires in the event of a fire, so it is necessary to prevent water from entering the control device and the hoist due to water discharge. For this reason, the conventional emergency elevator was comprised as an elevator system which has a machine room (patent document 1).

By the way, in recent years, machine roomless elevators in which a hoisting machine and a control device are arranged in a hoistway without providing a machine room in the upper part of the hoistway have been widespread. The rescue elevator could not be applied to the emergency elevator.
Recently, laws and regulations have been revised to allow the use of machine roomless elevators in emergency elevators under certain conditions (Ministry of Land, Infrastructure, Transport and Tourism Notification No. 1274).

JP 2013-49565 A

  However, in the case of a machine roomless elevator, it is necessary to arrange the hoisting machine and all the control devices in the hoistway at a position higher than the floor of the top floor so that the water discharged from the fire fighting operation is not directly applied. .

  However, in the hoistway above the top floor, various devices are arranged in a narrow and limited space, for example, a space that secures the lifting and lowering of the counterweight, and a car that protrudes from the car. If the space required for the side sheave is secured, there is a problem that there is particularly little room for installing a control device (including an emergency control device).

  The present invention has been made in view of the problems of the prior art described above, and has a rational layout in which a hoisting machine, all control devices and the like can be arranged in a hoistway at a position higher than the top floor. An object of the present invention is to provide a machine roomless elevator that can be created and configured to constitute a machine roomless elevator as an emergency elevator.

  In order to achieve the above object, a machine room-less elevator according to an embodiment of the present invention is a machine room-less elevator that does not have a machine room, and is disposed on the top of a hoistway on one side of a car. A hoisting machine; a counterweight that moves up and down on the back side of the car; a first longitudinal control device that is arranged in the hoistway on the other side of the car; and a back side of the car A vertically long second control device that is smaller than the first control device and is disposed in a space secured in the hoistway at a position close to the first control device on the side, the hoisting machine The lower ends of the first control device and the second control device are installed so as to be higher than the floor of the uppermost floor.

In the machine room-less elevator according to the first embodiment, it is a perspective view of a car as viewed from the front side with an entrance. It is the perspective view which looked at the car of FIG. 1 from the back side opposite to the front. In the machine roomless elevator by 1st Embodiment, it is a perspective view which shows the uppermost part of a hoistway. In the machine roomless elevator by 1st Embodiment, it is the top view which planarly viewed the hoistway from right above. It is a perspective view which shows arrangement | positioning of the emergency control apparatus by 2nd Embodiment in the top part of a hoistway. It is a perspective view which shows arrangement | positioning of the emergency control apparatus by 3rd Embodiment in the top part of a hoistway.

Embodiments of a machine roomless elevator according to the present invention will be described below with reference to the accompanying drawings.
(First embodiment)
1 and 2 are perspective views showing a car of a machine roomless elevator to which the present invention is applied. The car 20 is shown in a position landing on the top floor. Among these, FIG. 1 is the figure which looked at the car 20 from the front side with an entrance, and FIG. 2 is the figure which looked at the car 20 from the back side opposite to the front. In the car 20, a car room is configured by being surrounded by side plates forming an outer wall. Car doors 20 a and 20 b are provided in front of the car 20.

  In the following description, the direction in which the car doors 20a and 20b open and close toward the car doors 20a and 20b is referred to as the left-right direction of the car 20, and the direction in which passengers exit from the car 20 Is the front, the direction in which the passenger enters the car 20 is the rear, and the vertical direction is the vertical direction. As for each side surface of the car 20, the surface with the car doors 20a and 20b is referred to as the front surface, the surface behind it as the back surface, and the left and right surfaces as the side surfaces.

  In the machine roomless elevator 100 shown in FIGS. 1 and 2, a pair of car-side guide rails 21 </ b> L and 21 </ b> R extending in the vertical direction are disposed on both the left and right sides of the car 20. The car 20 is guided by the car side guide rails 21 </ b> L and 21 </ b> R and moves up and down in the hoistway 2.

  A pair of left and right weight side guide rails 23L and 23R are arranged on the back side of the car 20 so as to extend in the vertical direction. The counterweight 22 moves up and down in the hoistway 2 while being guided by the weight side guide rails 23L and 23R. The machine roomless elevator 100 according to the present embodiment is a so-called rear fall type elevator in which the lifting / lowering track of the counterweight 22 is disposed on the back side of the car 20.

  A hoisting machine support beam 24 is bridged between the tops of the left car side guide rail 21L and the left weight side guide rail 23L. On the upper surface of the hoisting machine support beam 24, the hoisting machine 25 is placed and fixed. Further, the main sheave 26 of the hoisting machine 25 is located above the left end of the counterweight 22 toward the back side of the car 20. Further, the hoisting machine 25 and the main sheave 26 are coaxial, and the axis thereof extends parallel to the left side surface of the car 20.

  On the other hand, a lower beam 28 constituting a part of the car frame extends horizontally in the left-right direction below the car 20. As can be understood from FIGS. 1 and 2, a sheave support beam 29 that is inclined in the front-rear and left-right directions in the horizontal plane so as to form an X shape with respect to the lower beam 28 is disposed.

  A pair of left and right car-side sheaves 30L and 30R are rotatably supported at both ends of the sheave support beam 29, respectively. The car sheaves 30L and 30R are arranged at positions symmetrical with respect to the center of gravity of the car 20, as can be understood from FIGS.

  A deflecting sheave unit 50 including a pair of deflecting sheaves 50a and 50b is provided below the hoisting machine support beam 24 and above the left car-side sheave 30L. In this embodiment, as shown in FIG. 2, the baffle sheave unit 50 has a baffle sheave base that extends rearward and downward from the center of the lower surface of the hoisting machine support beam 24 toward the left weight side guide rail 23L. 50c. At the lower end of the deflector sheave base 50c, one deflector sheave, that is, the first deflector sheave 50a, and at the upper end of the deflector sheave base 50c, the other deflector sheave, that is, the second deflector sheave 50b, is rotatable. It is supported.

Next, roping of the main rope 27 in the machine roomless elevator 100 according to the present embodiment will be described.
The main rope 27 will be described by dividing it into a portion where the car 20 is suspended and a portion where the counterweight 22 is suspended.

The portion where the car 20 is suspended is roped as follows.
That is, the portion of the main rope 27 extending downward from the main sheave 26 is wound around the first deflecting sheave 50a, and then extends upward and wound around the second deflecting sheave 50b. Further, the main rope 27 extends downward from the second deflecting sheave 50b, extends horizontally between the pair of left and right car sheaves 30L and 30R, and then extends upward from the right car side sheave 30R to the right side. Locked to the hitch portion 31. In this way, the car 20 is suspended by 2: 1 roping.

On the other hand, the portion of the main rope 27 that suspends the counterweight 22 is roped as follows.
That is, the portion of the main rope 27 extending downward from the main sheave 26 toward the counterweight 22 is wound around the pair of left and right weight side sheaves 22a and 22b so as to extend horizontally, and further, the right weight side sheave 22b. After being wound around, it extends upward and is locked to the rear hitch portion 32.

  The rear hitch portion 32 is disposed on the upper surface of the support beam 33 spanned between the upper ends of the pair of left and right weight side guide rails 23L and 23R and in the vicinity of the upper end portion of the right weight side guide rail 23R. And at the same height level as the hoist 25.

  The machine roomless elevator according to the present embodiment is used for transporting passengers and luggage during normal times. In this embodiment, such an elevator is also used as an emergency elevator that can ensure the operation of the elevator even when a disaster such as a fire occurs.

In order to configure the machine roomless elevator as an emergency elevator, drive system devices such as the hoist 25, the main control panel (main control device) 40, and the emergency control device 42 are installed in the hoistway 2 on the top floor. It is arranged at a position higher than the height of the floor surface 52.
Here, FIG. 3 is a view showing the uppermost part of the hoistway 2. In FIG. 3, reference numeral 52 represents the top floor. The front-rear direction and the left-right direction are indicated by arrows.

  A hoisting machine support beam 24 is stretched between the upper ends of the left car side guide rail 21L and the left weight side guide rail 23L, and the hoisting machine 25 is installed on the upper surface of the hoisting machine support beam 24. Has been. Since both the car-side guide rail 21L and the weight-side guide rail 23L extend above the floor 52 on the uppermost floor and close to the ceiling, the installation height of the hoisting machine 25 is the same as that of the floor 52 on the uppermost floor. The position is considerably higher than the height.

  A main control panel 40 that controls the entire elevator system during normal operation is attached to the right car-side guide rail 21R via a bracket 34. In the case of this embodiment, the main control panel 40 is a control panel having a vertically long casing, and extends upward along the car-side guide rail 21R. As shown in FIG. 3, the lower end of the main control panel 40 is higher than the top floor 52, and the upper end of the main control panel 40 is higher than the upper end of the car-side guide rail 21R and is hoisted. It is located above the upper surface of the machine 25.

  In relation to the overhead from the height of the floor 52 on the top floor to the ceiling, when the main control panel 40 cannot be accommodated for a long time, the overhead may be extended as much as necessary. Of course, depending on the main control panel 40, it is not necessary to extend such overhead.

  Here, FIG. 4 is a plan view of the hoistway 2 from directly above. The main control panel 40 is located between the right wall surface of the hoistway 2 and the right side surface of the car 20, and is disposed on the rear side of the car side guide rail 21R.

In the machine roomless elevator according to the present embodiment, in addition to the main control panel 40 as described above, an emergency control device 42 that controls the operation of the elevator in an emergency is arranged as follows.
The emergency control device 42 includes an emergency auxiliary panel 43 for controlling the elevator in an emergency operation mode different from the normal operation mode, in order to evacuate passengers safely and perform fire fighting activities. And a power supply transformer 44. Each of the emergency auxiliary panel 43 and the transformer 44 has a vertically long box smaller than the main control panel 40.
As shown in FIG. 4, the emergency control device 42 is disposed between the rear wall surface of the hoistway 2 and the rear surface of the car 20 in a plan view.

  In the machine roomless elevator according to the present embodiment, the counterweight 22 is a rear dropping type, but the distance W between the weight side guide rails 23L and 23R is conventionally between the rear wall surface of the hoistway 2 and the rear surface of the car 20. It is set appropriately narrower than. In this case, by shifting the position of the right weight side guide rail 23R to the left side and narrowing the interval W, an installation space for the emergency control device 42 is secured right next to the right weight side guide rail 23R. . The left weight side guide rail 23L is set so as to be located substantially on the axis of the hoisting machine 25. The hoisting machine 25 is preferably arranged so as to partially overlap the car 20 in a plan view from the top of the hoistway 2.

  As shown in FIG. 2, the emergency auxiliary board 43 is attached to the right weight side guide rail 23R via brackets 44a and 44b. The lower end of the emergency auxiliary board 43 is above the position of the floor 52 on the top floor. The transformer 44 is attached to the right weight side guide rail 23 </ b> R via the bracket 45 immediately above the emergency auxiliary panel 43. The upper end of the transformer 44 is located below the installation height of the hoist 25. There are various ways to attach the emergency auxiliary board 43 and the transformer 44. For example, the emergency auxiliary board 43 and the transformer 44 may be attached to a vertical column extending along the back wall of the hoistway 2 via a bracket, You may make it attach.

  2 to 4, reference numeral 54 indicates a governor. The governor is disposed on the front side obliquely below the hoisting machine 25.

Next, the effect of the machine roomless elevator according to the present embodiment will be described.
In the machine roomless elevator according to the present embodiment, as shown in FIGS. 3 and 4, all the controls such as the main control panel 40, the emergency auxiliary panel 43 and the transformer 44 constituting the emergency control device 42 are provided. The apparatus and the hoisting machine 25 are arranged in the hoistway 2 at a position above the height of the floor 52 on the uppermost floor.

  When a fire occurs, the operation of the elevator is switched to an emergency operation, and the elevator is controlled by the emergency control device 42 to function as an emergency elevator. Although the elevator will be used for fire fighting activities, the hoisting machine 25 and the emergency control device 42 are located above the floor 52 on the top floor, so that part of the water discharged by the fire extinguishing is the control device or hoisting machine. Can be prevented.

  Thus, although it is a machine roomless elevator, the function as an emergency elevator can be reliably maintained by arrange | positioning the main control panel 40 and the emergency control apparatus 42 in the position which can be protected from wetness.

  Although the main control panel 40 is not used for emergency operation, it does not get wet with water, so it can avoid troubles such as breakdowns when the fire is extinguished and restored to normal operation. become.

  Even if the counterweight 22 is a rear-falling type machine roomless elevator as in the present embodiment, it is not necessary to increase the effective dimension of the hoistway 2, and it is possible to ride without interfering with the counterweight 22. A space necessary for arranging the emergency control device 42 on the back side of the car 20 can be secured.

  Furthermore, as shown in FIG. 4, the arrangement of the counterweight 22, the hoisting machine 25, and the deflecting sheaves 50a, 50b can be optimized. As a roomless elevator system, roping of the main rope 27 is not hindered.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG.
FIG. 5 is a diagram showing the arrangement of the emergency control device 42 according to the second embodiment at the top of the hoistway 2. In the second embodiment, the emergency control device 42 is mounted on the support beam 60 installed between the upper ends of the weight side guide rails 23L and 23R.

  In the case of the support beam 60, a part of the hoisting machine 25 is supported, so that vibration generated in the hoisting machine 25 is transmitted from the support beam 60 to the emergency control device 42. Therefore, a vibration isolating means 62 such as a vibration isolating rubber is provided on the upper surface of the support beam 60, and the emergency control device 42 is installed on the vibration isolating means 62. The emergency control device 42 is divided into a plurality of boxes as units for each function, and is arranged in the length direction of the support beam 60 on the mounting base 61, thereby not increasing the overhead of the top floor. I am doing so. The emergency control device 42 can be installed at substantially the same height as the hoisting machine 25.

  According to the second embodiment as described above, unlike the first embodiment, the emergency control device 42 is installed using the support beam 60 without having to reduce the width of the weight side guide rails 23L and 23R. Can do.

(Third embodiment)
Next, FIG. 6 is a diagram showing an arrangement of the emergency control device 42 according to the third embodiment of the present invention. In the third embodiment, instead of using the support beam 60 as in the second embodiment of FIG. 5, a bracket 64 is bridged under the support beam 60 and the emergency control device 42 is installed on the bracket 64. It is an embodiment. The emergency control device 42 is similar to the second embodiment in that it is divided into a plurality of boxes as units for each function. By dividing in this way, no space is taken under the support beam 60. Can be arranged together.

  According to the third embodiment as described above, the emergency control device 42 can be installed by using the bracket laid under the support beam 60 without having to reduce the width of the weight side guide rails 23L and 23R. it can.

  As mentioned above, although the preferred embodiment was mentioned and demonstrated about the machine room less elevator which concerns on this invention, these embodiment was mentioned as an illustration and does not intend the restriction | limiting of the scope of the invention. Of course, the novel apparatus, method and system described in the specification can be implemented in various forms, and various omissions, substitutions and changes can be made without departing from the spirit of the present invention. is there. The claims and their equivalents are intended to cover the embodiments or improvements thereof within the spirit of the invention.

2 ... hoistway, 20 ... car, 20a, 20b ... car door, 21L, 21R ... car side guide rail, 22 ... counterweight, 23L, 23R ... weight side guide rail, 24 ... hoisting machine support beam, 25 ... winding machine, 26 ... main sheave, 27 ... main rope, 28 ... bottom beam, 29 ... sheave support beam, 30L, 30R ... car side sheave, 40 ... main control panel, 42 ... emergency control device, 43 ... emergency Auxiliary panel 44 ... transformer 50a, 50b ... warp sheave 52 ... floor surface on the top floor 54 ... speed governor 62 ... vibration isolation means

Claims (9)

In a machine room-less elevator that does not have a machine room,
A hoisting machine arranged on the top of the hoistway on one side of the car;
A counterweight that moves up and down on the back side of the car;
A vertically long first control device disposed in the hoistway on the other side surface of the car;
A vertically long second control device that is smaller than the first control device and is disposed in a space secured in the hoistway at a position close to the first control device on the rear side of the car. ,
A machine room-less elevator, wherein the hoisting machine, the first control device, and the second control device are installed such that lower ends thereof are higher than a height of a top floor. In a machine room-less elevator that does not have a machine room,
A hoisting machine arranged on the top of the hoistway on one side of the car;
A counterweight that moves up and down on the back side of the car;
A main controller disposed in the hoistway on the other side surface of the car;
An emergency control device disposed in a space secured in the hoistway at a position close to the main control device on the back side of the car and having an emergency operation function,
A machine room-less elevator, wherein the hoisting machine, the main control device, and the emergency control device are installed such that lower ends thereof are higher than the height of the top floor.   Among the pair of left and right weight side guide rails that guide the lifting and lowering of the counterweight, the right side weight side guide rail is disposed close to the hoisting machine side, thereby reducing the distance between the pair of left and right weight side guide rails. 3. The machine room-less machine according to claim 1, wherein a space for arranging the first control device or the emergency control device is secured by narrowing and shortening the width of the counterweight. elevator.   The first control device or the emergency control device is attached to the right side weight side guide rail via a bracket on the back side of the car, or is anchored to the wall surface on the back side of the hoistway. The machine room-less elevator according to claim 3, wherein the machine room-less elevator is attached via a bracket or a bracket fixed to a vertical column.   The first control device or the emergency control device is installed between the upper ends of a pair of left and right weight side guide rails, and is installed on a support beam that supports the hoisting machine on one end side through vibration isolation means. The machine room-less elevator according to claim 1 or 2.   The first control device or the emergency control device is attached to a bracket spanned between the pair of left and right weight side guide rails at a position near the upper ends of the pair of left and right weight side guide rails. The machine room-less elevator according to claim 1 or 2. In order to rope the main rope into the machine roomless elevator, the main sheave is arranged below the main sheave of the hoisting machine facing the rear side of the car, and the lower first first sheave sheave and the upper A second sheave sheave, a first sheave sheave disposed on a lower surface of the car and positioned below the second deflector sheave, and the first car sheave A second car-side sheave disposed at a symmetrical position with respect to the center of gravity of the car;
The main rope portion for suspending the car is routed in the order of the main sheave of the hoisting machine, the first deflector sheave, the second deflector sheave, the first car side sheave, and the second car side sheave. Fixed to the first hitch part supported by the right car side guide rail,
The portion of the main rope that passes through the counterweight is routed in the order of the main sheave of the hoist and the counterweight-side sheave installed at the top of the counterweight, and the end is supported by the right-side weight-side guide rail The machine room-less elevator according to claim 1, wherein the machine room-less elevator is fixed to the second hitch portion.   The machine room-less elevator according to claim 7, wherein the hoisting machine is arranged such that a part of the car overlaps in a plan view from the hoistway.   The machine room-less elevator according to claim 8, wherein a speed governor is disposed obliquely downward and forward of the hoisting machine.

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