JP2010215299A - Elevator facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator facility renewed into a well sweep type which is efficiently renewed from a hydraulic elevator in a short time. <P>SOLUTION: The elevator facility includes a hydraulic jack vertically disposed in the space between a side surface of a car ascendable and descendible by a guide rail and an inner wall of a hoistway where the car is installed. A guide rail for a counterweight is erected sideways of the hydraulic jack in the space within the hoistway where the hydraulic jack is installed, and the counterweight is made ascendable and descendible by the guide rail. A motor and a drive sheave rotationally driven by the motor are installed above the hydraulic jack in the space within the hoistway where the hydraulic jack is installed. A rope is wrapped around the drive sheave, and the counterweight and the car are connected into the well sweep type. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a vine-type elevator installation renewed from a hydraulic elevator.

  Conventionally, a hydraulic elevator (for example, refer to Patent Document 1) that does not require a machine room above a hoistway has been used in a low-rise apartment with a relatively small number of floors. This hydraulic elevator is generally configured as shown in FIG.

  In FIG. 3, a car 12 is installed in a hoistway 11 so that it can be raised and lowered by a guide rail 13. In the space between the rear surface, which is one side surface of the car 12, and the inner wall of the hoistway 11, a hydraulic jack 14 that operates by hydraulic pressure is provided upright. The hydraulic jack 14 has a plunger 14a that moves up and down by hydraulic pressure, and a pulley 15 is provided at the tip of the plunger 14a. A rope 16 is wound around the pulley 15. One end of the rope 16 is connected to a rope hitch 12 a provided at the center in the width direction of the lower portion of the car 12, and the other end is a lower base portion of the hydraulic jack 14. It is connected to the. Accordingly, the plunger 14a of the hydraulic jack 14 is lifted by the operation of a hydraulic unit (not shown) formed on the side of the lowermost floor of the hoistway 11 so that the pulley 15 is wound around the pulley 15 at the tip thereof. One end of the rope 16 is also raised, and the car 12 is lifted and raised.

  As described above, the hydraulic elevator having such a configuration has been widely used in an apartment or the like in which the right of sunshine with a relatively low-rise structure is a problem because the machine room does not protrude above the hoistway.

JP-A-10-330060

  However, since the hydraulic elevator adds the weight of the car directly to the hydraulic jack, a large amount of power is required to raise the car. In other words, it consumes about four times as much power as a so-called slewing elevator using a counterweight. Moreover, although an oil tank, piping, etc. are required, an oil tank is a dangerous material and it is thought that oil leakage will arise in piping, and handling of these was troublesome.

  On the other hand, in the field of elevator type elevators, so-called machine room-less elevators have been developed in which the machine room does not protrude on the hoistway, and instead of conventional hydraulic elevators, a relatively low-rise structure has been developed. Widely used in apartments. Further, even when a hydraulic elevator is already installed, it is renewed to a machine room-less slewing elevator.

  An object of the present invention is to provide a slewing-type renewed elevator installation that can be efficiently renewed in a short time from a hydraulic elevator.

  An elevator installation according to the present invention is an elevator installation having a hydraulic jack erected in a space between one side surface of a passenger car that can be raised and lowered by a guide rail and the inner wall of a hoistway where the passenger car is installed. A guide rail for a counterweight that is erected on the side of the hydraulic jack in a space in the hoistway where the hydraulic jack is provided, and a fishing gear that can be raised and lowered by the guide rail. In the space provided with the hydraulic jack in the hoistway in the hoistway, a motor installed above the hydraulic jack, a driving sheave rotated by the motor, and the driving sheave are wound around The counterweight is provided with a rope that connects the car and the car in a vine-like manner.

  In the present invention, one end of the rope wound around the drive sheave is coupled to the rope hitch of the car to which one end of the rope that has moved the car up and down by the hydraulic jack is connected.

  In the present invention, one end of the rope wrapped around the drive sheave is wrapped around a car sheave for suspension support installed on the car, and N: 1 (N is an integer of 2 or more) on the car side. The roping may be applied.

  Furthermore, in the present invention, the other end of the rope wound around the drive sheave is wrapped around a suspension support sheave installed on the counterweight, and N: 1 (N is 2 or more) on the counterweight side. (Integer integer) may be applied.

  According to the present invention, the space near the hydraulic jack used in the hydraulic elevator can be used to efficiently renew the slidable elevator with an efficient arrangement configuration.

It is the figure which looked at the elevator installation by this invention from the back side of the passenger car. It is a top view of FIG. It is the figure which looked at the hydraulic elevator before renewal from the back side of a car.

  Hereinafter, an embodiment of an elevator installation according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 and FIG. 2 are a plan view and a plan view of an elevator installation renewed in a slidable manner driven by a motor based on the hydraulic elevator shown in FIG. 3, viewed from the rear side of the car. .

  In FIGS. 1 and 2, hydraulic cars and guide rails 13 installed in the hoistway 11 can be used as they are. Further, the hydraulic jack 14 standing in the space between one side surface of the car 12 and the inner wall of the hoistway 11 becomes unnecessary after being renewed to a slidable elevator, but remains without being removed. . That is, the hydraulic jack 14 has a total length of 12 m even in a contracted state, and it is difficult to carry it out as it is even if it is removed from the hoistway 11. For this reason, it is conceivable to cut to a length that can be carried out, but the renewal work is severe in terms of schedule, and it is difficult to perform the cutting work during a short work schedule. In addition, the cutting work itself generates noise, so it is practically difficult to carry out the work in an existing apartment. Therefore, the hydraulic jack 14 itself remains in the hoistway.

  As described above, this hydraulic jack 14 is erected in the space between the rear surface of the car 12 and the inner wall of the hoistway 11 and remains in the installed state, but its shape is a relatively thin cylindrical shape. There is a space on the side. Therefore, this side space is utilized as a lifting space for the counterweight 21. For this purpose, as shown in FIG. 2, a guide rail 22 for the counterweight 21 is erected in this side space. A counterweight 21 is mounted between the guide rails 22 so as to be movable up and down. The counterweight 21 has a sheave 23 for suspension support at the upper part thereof, and 2: 1 roping is possible on the counterweight 21 side.

  As described above, the car 12 is a hydraulic one as it is. For this reason, as shown in FIG. 3, the rope hitch 12a to which one end of the rope 16 is fixed is also used as it is, and one end of the suspension support rope 29 in the vine type is fixed.

  In addition, the space above the hydraulic jack 14 in the upper part of the hoistway 11 is a space that can be used for installing equipment. That is, the hydraulic jack 14 is not used after the renewal to the vine type, and the plunger 14a remains in a contracted state. Therefore, a gantry 25 is provided in the upper space in the hoistway 11 and above the hydraulic jack 14, and the hoisting machine 26 is installed on the gantry 25. The gantry 25 is appropriately configured, for example, by being attached to the inner wall of the hoistway 11, or by being stretched between the upper end portion of the counterweight guide rail 22 and a constituent member (not shown) of the hoistway 11.

  The winder 26 includes a motor 26a and a drive sheave 28 that is rotationally driven by the motor 26a. Further, a deflecting sheave 31 is provided between the drive sheave 28 and the rope rising portion from the suspension support sheave 23 of the counterweight 21. A suspension support rope 29 is wound around these as shown in FIG. 1, and the counterweight 21 and the carriage 12 are connected to each other via a drive sheave 29 in a slab manner. That is, one end of the rope 29 is fixed to the rope hitch 12 a at the center of the rear surface of the car 12, and the rope 29 rising from the rope hitch 12 a is wound around the drive sheave 28. After that, it descends onto the counterweight 21 via the deflecting sheave 31, is wound around the counterweight sheave 23 and rises, and the other end is fixed to the rope hitch 32 at the upper part of the hoistway 11.

  In such a configuration, the car 12 side is 1: 1 roping, while the counterweight 21 side is 2: 1 roping due to the sheave 23 provided. The raising / lowering distance of the counterweight 21 can be shortened with respect to the raising / lowering distance.

  Here, when the hydraulic elevator is renewed to a slidable elevator, the counterweight 21 must be installed on the side of the remaining jack 14 and it is difficult to increase the size in the width direction. For this reason, in order to ensure a required weight volume, it is necessary to form in elongate. Thus, when the shape of the counterweight 21 is elongated, in the case of a low-layer structure, the lifting stroke may not be ensured depending on the length of the counterweight 21.

  However, as described above, since the counterweight 21 side is set to 2: 1 roping, the lifting distance of the counterweight 21 can be shortened, so that the counterweight 21 can be formed sufficiently long and the necessary weight volume can be afforded. Can be secured.

  Moreover, since the hydraulic jack 14 can be left and renewed in a slidable manner, it is not necessary to remove the hydraulic jack, such as cutting the hydraulic jack, which makes it difficult to remove the noise. Can be reduced. In addition, the renewal work period can be shortened, and even during the renewal work period, the hydraulic jack can be operated because the hydraulic jack is not removed, and the elevator can be operated by specifying a specific time zone, such as morning and evening commuting hours. It is possible to drive and secure user convenience.

  In the above embodiment, one end of the rope 29 is fixed to the rope hitch 12a of the car 12. However, the rope hitch 12a is provided with a sheave, and the rope 29 is wrapped around the car sheave. Roping of N: 1 (N is an integer of 2 or more) may be performed on the car side. In this case, N: 1 (N is an integer of 2 or more) may be similarly applied on the counterweight 21 side.

DESCRIPTION OF SYMBOLS 11 ... Hoistway 12 ... Ride car 13 ... Ride guide rail 14 ... Hydraulic jack 21 ... Balance weight 22 ... Balance weight guide rail 23 ... Balance weight sheave 26 ... Winding machine 26a ... Motor 29 ... Rope 12a , 32 ... Rope hitch

Claims (4)

An elevator facility having a hydraulic jack erected in a space between one side of a car configured to be able to move up and down by a guide rail and an inner wall of a hoistway where the car is installed,
A guide rail for a counterweight that is erected on the side of the hydraulic jack in a space in the hoistway where the hydraulic jack is provided, and a counterweight configured to be movable up and down by the guide rail When,
A motor installed above the hydraulic jack in a space provided with the hydraulic jack in the hoistway, and a drive sheave driven to rotate by the motor;
A rope that is wound around the drive sheave and connects the counterweight and the car in a slat-type manner;
Elevator equipment characterized by comprising   The one end of the rope wound around the drive sheave is connected to a rope hitch of a car to which one end of a rope that has moved the car up and down by the hydraulic jack is connected. Elevator equipment as described in 1.   One end of the rope wound around the drive sheave is wound around a car sheave for suspension support installed in the car, and N: 1 (N is an integer of 2 or more) is roping on the car side. The elevator installation according to claim 1, wherein   The other end of the rope wrapped around the drive sheave is wound around a suspension support sheave installed on the counterweight, and N: 1 (N is an integer of 2 or more) roping on the counterweight side. The elevator installation according to any one of claims 1 to 3, wherein:

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