JPH0480188A - Double deck elevator - Google Patents

Abstract

PURPOSE:To quickly move a cage chamber and simplify control by providing a guide with the brake and a suspending wheel on an upper cage chamber, and changing distance between the upper and the lower chambers. CONSTITUTION:When a lower cage chamber 9 and an upper cage chamber 11 in service for the eleventh floor 1B and the twelveth floor 1C are served for the thirteenth floor 1D and the fourteenth floor 1E, the sheave 4a of a winding machine 4 is rotated to move a plurality of main cables 6 based on the command from a control device 16, and a cage frame 8 is elevated. Synchronizing with this, the sheave 14a of a winding machine 14 is rotated to move the main cables 6, a guide with the brake 12 of the upper cage chamber 11 is released to elevate the upper cage chamber 11, and the upper cage chamber 11 is upward moved by 1m. The distance between the lower cage chamber 9 and the upper cage chamber 11 is changed from 4m to 5m, and the lower cage chamber 9 and the upper cage chamber 11 are simultaneously stopped at the thirteenth floor 1D and the fourteenth floor 1E for service. In the case of changing a floor interval from 5m to 4m, it is served by the reverse operation. Hereby, the cage chamber 11 can quickly be moved and the control can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in the structure of a double-deck elevator with two-story cabs that can service both floors at the same time.

(Prior Art) A double-decker elevator is a special elevator that has a two-story car room and can service both floors at the same time.To make effective use of this double-decker elevator, it is important that the spacing between all floors of a building is constant. desirable.

However, there are cases where the floor spacing of a building is not constant, and if no measures are taken in this case, the double deck elevator cannot be used effectively.

Therefore, JP-A-60-19679, 61-15097
No. 2 and Japanese Patent Application Laid-Open No. 2-106570, etc., in view of the above, the space between the upper car and the lower car is expanded or reduced by providing it on the car side or using a lid or the like. I'm proposing something.

[Problems to be Solved by the Invention] Conventional double deck elevators are constructed as described above, and a lifter or the like is provided on the car side to change the distance between the upper car and the lower car. It was extremely difficult to realize a method that could prevent an increase in the weight of the chamber and an increase in the number of control cables. Additionally, there is a problem in that there is a lack of space for mounting and maintenance space for the equipment on the side of the car.

The present invention has been made in view of the above, and it is possible to prevent an increase in the weight of the car and the number of control cables, eliminate the lack of installation space and maintenance space for car side equipment, speed up the movement of the car, and simplify control. The purpose of this invention is to provide a double-decker elevator that can be used.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention includes a hoisting machine installed at the top of an elevator hoistway, and a plurality of main ropes based on the operation of this hoisting machine. It is equipped with a elevator car that moves up and down the hoistway through the elevator car, and two elevator cars arranged vertically inside the elevator car, and furthermore, one of the two elevator cars can be raised and lowered. In addition to being placed inside the car frame, there is a
A rotatable suspension wheel wound around a part of the plurality of main ropes is pivoted, and the part of the main ropes is moved to the top of the hoistway to move the one elevator car up and down. The invention is characterized in that it is provided with a driving means for causing the movement.

[Effect]

According to the present invention, when it is necessary to expand or contract the interval between the cabs according to the floor height, the drive means consisting of the hoisting machine operates based on a command from the control device to move a part of the main rope. let me,
Since the elevator cab that can be raised and lowered moves up and down to create a different distance from the fixed cab, it prevents an increase in the weight of the elevator car and control cables, eliminates the lack of space for installation and maintenance of equipment on the elevator cab, and improves the efficiency of the elevator car. It is possible to speed up movement and simplify control.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in FIGS. 1 and 2. In the figures, (1) is a building such as a building, and inside this building (1) there is a hoistway (2). A machine room (3) is provided at the top of the hoistway (2).
A hoisting machine (4) is installed in this machine room (3). In addition, (IA) is on the 10th floor, (IB) is on the 11th floor, (IC)
is on the 12th floor, (10) is on the 13th floor, (IE) is on the 14th floor, (I
F) indicates the 15th floor, and the numbers between each floor indicate their intervals.

(5) is a rotatable deflection wheel that is pivoted in the machine room (3) and adjacent to the sheave (4a) of the hoisting machine (4), and this small diameter deflection wheel (5) and the sheave ( 4a) includes multiple main ropes (
6) is wound, and the deflection wheels (5) of the plurality of main ropes (6) are wound.
) side, the machine room (3
) is suspended from the bottom via a buffer spring, etc. Also,
A portion (approximately half) of the plurality of main ropes (6) on the sheave (4a) side passes through the hanging wheel (8a) of the rectangular car frame (8) located in the hoistway (2) so that it can be raised and lowered. It is suspended from the bottom of the machine room (3) via a buffer spring or the like.

(9) A fixed lower car chamber installed inside the basket (8). On the top of this lower car chamber (9), there are a plurality of buffer springs (
10) is erected. (11) An upper car compartment that can be raised and lowered and located inside the basket frame (8) and directly above the lower car compartment (9). A brake-equipped guide (12) slidably fitted to the inner side of the frame (8) is attached to each of the frames (8). In addition, at the top of the upper car room (11), a hanging wheel (1
3) is attached to the shaft.

(14) is a hoisting machine (driving means) installed in the machine room (3), and the sheave (14a) of this hoisting machine (14) is attached to the sheave (4a) of the plurality of main ropes (6). ) side is wound. The remainder is suspended in the hoistway (2), and the upper part of a counterweight (15) that can be raised and lowered is connected to the end thereof. Note that the brake-equipped guide (12) operates in synchronization with the hoist (14).

(16) is a control device installed in the machine room (3), and this control device (16) is a CPU (16) as shown in Fig. 1.
A), ROM (16B), and RAM (1ac
) and an interface (16D),
It has a function of controlling the hoisting machines (4) and (14).

Therefore, the lower car room (9) and upper car room (11), which serve the 11th floor (IB) and 12th floor (IC), will be
D) and the 14th floor (IE), the sheave (4a) of the hoisting machine (4) rotates based on the command from the control device (16) to move multiple main ropes (6). The car frame (8) moves upward. Then, in synchronization with this, the sheave (14'a) of the hoisting machine (14) rotates based on a command from the control device (16) to move the main rope (6), and the upper car room (11) The guide with brake (12) is released to allow the upper car compartment (11) to move upward, and the upper car compartment (11)
moves up 1m. However, the distance between the lower car room (9) and the upper car room (11) has changed from 4 m to 5 m, and the lower car room (9
) and the upper car room (11) are located on the 13th floor (ID) and 14th floor (IE
) and stop and service at the same time. In addition, the floor space is 5m
If the distance becomes 4 m, service can be provided by performing the reverse operation of the above operation.

As described above, according to the present invention, the brake equipped guide (12) and the hanging wheel (13) are provided in the upper car chamber (11), and the interval between the upper car chamber (11) and the lower car chamber (9) is changed. Therefore, it is possible to significantly reduce the weight and maintain and expand the installation space and maintenance space compared to the conventional example. In addition, as for the control cables, only the one for the guide with brake (12) and the signal line for measuring the moving distance of the upper car compartment (11) are used, so the power line can be omitted, thus preventing the increase in the number of control cables. becomes possible.

Since it is controlled in the machine room (3), installation and maintenance are easy and can be expected to be inexpensive. Furthermore, on any floor, even when the car frame (8) is moving up and down, the upper car room (
11) and the lower car compartment (9) can be expanded or contracted, and this can be done in a short time.

In the above embodiment, the upper car compartment (11) is moved up and down, but the lower car compartment (9) may also be moved up and down. In addition, in the above embodiment, the hoisting machine (1
4), but it goes without saying that a hydraulic cylinder or the like may also be used. Furthermore, in the above embodiment, the hoisting machine (14) serving as the driving means is provided on the fixed side of the hanging wheel (13), but one side of both hanging wheels (7a) and (13) is fixed. Hoisting machine (
By tensioning only the main rope (6) of the lifting wheel (13) of the upper car room (11) with the hoisting machine (14) on the side of 4), it becomes possible to lift the upper car room (11). .

〔Effect of the invention〕

As described above, according to the present invention, one of the two elevator cars is arranged inside the car frame so that it can be raised and lowered, and one of the plurality of main ropes is placed on the top of the one elevator car. A rotatable suspension wheel wound around the hoistway is attached to the shaft, and a drive means is provided at the top of the hoistway to move the part of the main rope and move the one elevator car up and down. This prevents increases in car weight and control cables, eliminates lack of space for installation and maintenance of equipment on the car side,
It is possible to provide a double deck elevator that can speed up the movement of a car and simplify control.

[Brief explanation of the drawing]

FIG. 1 is an overall view showing an embodiment of a double deck elevator according to the present invention, and FIG. 2 is a side view of essential parts showing an embodiment of the double deck elevator according to the present invention. In the figure, (2) is the hoistway, (4) is the hoisting machine, (6) is the main cable, (8) is the frame, (9) is the lower car room, (11) is the upper car room, (12) is the ) is a guide with a brake, (13) is a hanging wheel, and (14) is a hoist (driving means). In the figures, the same reference numerals indicate the same or corresponding parts. Contents of amendment Procedural amendment (spontaneous) Japanese Patent Application No. 195535 2゜ Name of invention Double deck elevator 3゜ Person making the amendment Relationship to the case Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo given name
Name (601) Mitsubishi Electric Co., Ltd. Representative Moriya Shiki 4, Agent address 4th floor, Nakayama Hill, 1-9-13 Nihonbashi Honmachi, Chuo-ku, Tokyo Name (7336) Agent Patent attorney Yamazaki Telephone 03
(24]) 3046 5 Character shape to be corrected 1'1 1111'' Page 2 of the specification, line 12, ``Therefore, JP-A-601967
No. 9,” was changed to “Therefore, Japanese Patent Application Laid-open No. 48-7624
No. 2, Japanese Unexamined Patent Publication No. 60-19679.''that's all

Claims (1)

[Claims] A hoisting machine installed at the top of an elevator hoistway, a car frame that moves up and down the hoistway via a plurality of main ropes based on the operation of this hoisting machine, and a car frame arranged vertically inside the car frame. In a double deck elevator equipped with two elevator cars, one of the two elevator cars is arranged inside the car frame so that it can be raised and lowered, and
A rotatable hanging wheel that is wound around a part of the plurality of main ropes is attached to the top of this one elevator car, and the part of the main ropes is moved to the top of the hoistway. A double-deck elevator characterized in that it is provided with a drive means for moving the single elevator car up and down.