JP2001261268A - Elevator apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of the conventional elevator apparatus that since a machine room is provided on the upper side or lower side of the elevator, a large space is required and the apparatus costs be come high. SOLUTION: In this elevator apparatus, hoist type driving device is stored under a car of the elevator, a first and second pulleys are rotatably provided on both sides of the lower part of the car, and a ceiling pulley is rotatably provided on the ceiling of a skeleton for supporting the elevator. One end of a rope is fixed to the ceiling. The other end of the rope is extended downward, wound round a drum of the hoist type driving device through the first pulley, and then extended upward through the second pulley to be suspended on the suspending pulley and then connected to a balance weight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus, and more particularly to a space-saving elevator apparatus which can use parts of a conventional elevator.

[0002]

2. Description of the Related Art Conventionally, there are known various types of elevator cars that can be raised and lowered by using a hoisting drive.

[0003]

However, when the machine room including the hoisting drive device is installed on the ceiling of the elevator supporting frame, not only a large space is required above the elevator room, but also the inspection is required. Had a risky drawback.

[0004] Even if the machine room is provided beside or directly below the elevator room, it is necessary to provide a large pit underground as well, which increases the cost and requires measures against rainwater flowing into the pit. There was a disadvantage.

The present invention has been made to eliminate the above disadvantages.

[0006]

The elevator apparatus according to the present invention comprises an elevator car, a hoisting drive device housed under the floor of the car, and first and second rotatably supported lower sides of the car. Pulley 2, a suspension pulley rotatably supported on the ceiling of the elevator supporting frame, a balance weight, and one end fixed to the ceiling and the other end extending downward through the first pulley. And a rope connected to the balance weight after being wound up on the hoist, extended upward through the second pulley, suspended on the suspension pulley, and then connected to the balance weight.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

In the drawing, 1-3 are floors of the first to third floors respectively, 4 is an elevator supporting frame, 5 is a pulley provided on the ceiling of the elevator supporting frame 4, 6 is an elevator car, 7 is a rope, Reference numeral 8 denotes a balance weight. In the present invention, a normal hoisting drive 9 is housed under the floor of the car 6, and the rope 7 wound around the drum 10 of the hoisting drive 9 is placed on both lower sides of the car 6. Pulley 1 pivotably supported
1 and 12, extending upward along the outer surface of the car, fixing the end of the rope 7 guided by one pulley 11 to the ceiling of the elevator supporting frame 4 and guiding the rope to the other pulley 12 The end of 7 is suspended on a pulley 5 for suspension provided on the ceiling and fixed to a balance weight 8.

The pulley 5 for suspension provided on the ceiling 4
Is composed of a plurality of deflecting wheels 5a and 5b, and guides the rope 7 located on the right side of the car 6 in FIG. 3 to the back of the car 6 where the balance weight 8 is located.

Reference numeral 13 denotes a guide for the rope 7, reference numeral 14 denotes a weight cover, reference numeral 15 denotes an operation panel arranged in the car 6, and reference numeral 16 denotes a car 6
This is a pit provided on the first floor 1 to fill the underfloor part of the building.

Since the elevator apparatus of the present invention has the above configuration, the hoisting drive unit 9 is started by operating the operation panel 15 in the car 6 and the drum 10 is rotated. The car 6 is wound up and lifted in a crane manner, or the rope 7 is loosened and the car 6 is lowered, so that the same operation as that of a conventional elevator is performed.

[0012]

According to the elevator apparatus of the present invention, there are the following various advantages as compared with the conventional elevator.

1. Since no machine room is provided above or below the elevator, the space and the installation cost thereof can be significantly reduced.

2. The space required under the floor of the elevator car 6 for the hoisting drive 9 is extremely small,
For example, since the height is 1 m or less, the pits 16 made therefor can be made small, which is advantageous in terms of space and cost. If the pit 16 cannot be made by design,
The same effect can be obtained by mounting the hoisting drive device 9 on the ceiling of the elevator car 6.

3. Even if rainwater may enter the pit 16, in that case, since the self-propelled means is provided in the elevator car 6, the car 6 can be evacuated to any place on the second floor or higher, and a special No rainwater measures are required.

4. Since the repair of the hoisting drive device 9 can be performed with the car 6 moved to the lower floor, there is little danger.

5. Since the car 6 is made to run in a self-supporting manner by using the balance weight 8, the car 6 can be of an energy saving type.

6. Costs can be reduced because parts of conventional elevators can be used as they are.

[Brief description of the drawings]

FIG. 1 is a front view of an elevator apparatus according to the present invention.

FIG. 2 is a side view of the elevator apparatus of the present invention.

FIG. 3 is a plan view of the elevator apparatus of the present invention.

FIG. 4 is a front view of a hoist portion of the elevator apparatus according to the present invention.

5 is a side view of the hoist shown in FIG. 4. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 floor 2 floor 3 floor 4 ceiling 5 pulley 5a deflecting car 5b deflecting car 6 basket 7 rope 8 balance weight 9 hoisting drive 10 drum 11 pulley 12 pulley 13 guide 14 weight cover 15 operation panel 16 pit

Claims (1)

[Claims] 1. An elevator car, a hoisting drive housed under the floor of the car, first and second pulleys rotatably supported on both lower sides of the car, and a ceiling of an elevator support frame. A pulley for suspension that is rotatably supported on
A balance weight, one end of which is fixed to the ceiling and the other end of which is extended downward, wound around the hoisting machine via the first pulley, and then extended upward via the second pulley for suspension. And a rope connected to the balance weight after being suspended on the pulley.