JPH02305790A - Elevator for low level stories building - Google Patents

Abstract

PURPOSE:To carry out the works of maintenance and inspection of a speed reduction gear, a restoration of a cage in an abnormal stop, and the like, simply from the outer side without entering the lower side of the cage by a worker, and to reduce the rate of the plane space occupation of a pit, by arranging a winding drum type elevator driving device attached to the side surface at the lower part in an elevator route positioned at a cage shutter box side. CONSTITUTION:A driving device 4 is arranged to attach to the side surface at the lower part in an elevator route 1 positioned at a cage shutter box 3a side. That is, the driving device 4 is to be arranged in a vacant space at the cage shutter box 3a side other than the area of the projected plane of the cage 3 in the elevator route 1. As a result, the works such as the maintenance and inspection of a speed reduction gear 8 and the like, and the restoration of the cage 3 stopped abnormally and the like can be carried out safely from the outer side without entering the lower side of the cage by a worker. And since the driving device 4 is attached to the side, the rate of the plane space occupation of the pit is reduced, the space for the works of inspection and maintenance is secured broad, and the working efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an elevator for low-rise buildings, called a home elevator, etc., which is installed and used in private residences and the like.

(Prior Art) Conventionally, elevators for low-rise buildings, which are mainly installed and used in private residences (two- to three-story residences), are smaller and require less space than ordinary elevators in buildings. Rather than providing a large, independent machine room, the elevator drive device for the car is installed in the bit section at the bottom of the hoistway.

Conventional examples thereof are shown in FIGS. 4 and 5. In the figure, 1 is the hoistway, which is composed of a self-supporting steel frame 2 built independently from the building. A car 3 is provided in the hoistway 1 so as to be movable up and down via a guide rail (not shown), and a winding drum type lifting drive device 4 is provided which drives the car up and down via a hoisting lobe (not shown). It is installed at the bottom of the lower bit part in the hoistway 1. In other words, two front and rear machine beams 6 are installed parallel to each other on a horizontal plane at the bottom of the lower end pit part of the free-standing steel frame 2 that constitutes the hoistway 1 via anti-vibration rubber 5. - A winding drum-type lifting drive device 4 consisting of a gear 7, a speed reducer 8, and a winding drum 9 is installed.

(Problem to be Solved by the Invention) By the way, in the conventional elevator for a low-rise building described above, the drum-type lifting drive device 4 is disposed at the bottom surface position directly below the car 3 at the lower end bit part in the hoistway 1. , its reducer 8
When carrying out maintenance inspections on car 3, or when performing recovery work if car 3 stops mid-floor for some reason, workers must enter the lower side of car 3 at the lower end bit inside hoistway 1, resulting in an emergency situation. There was a risk of In addition, the drum-type lifting drive device 4 occupies a considerable amount of planar space in the pit.
There was a problem in that the space for the above-mentioned inspection and maintenance work was narrow and the workability was extremely poor.

In addition, by arranging the winding drum type lifting drive device 4 at a position directly below the car 3 in the lower bit part of the hoistway 1, it will not come into contact with the reducer 8 or the winding drum 9 when the car 3 descends to the lowest floor. As such, the depth of the pit had to be made deeper, which made construction that much more difficult and costly.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide an elevator for a low-rise building in which maintenance and inspection work can be carried out safely and easily, and the depth of the pit at the lower end of the hoistway can be made shallow, making construction easier. purpose.

[Structure of the Invention] (Means for solving departmental problems) In order to achieve the above object, the elevator for a low-rise building of the present invention has a winding drum type lifting drive device located on the side of the car door in the lower part of the hoistway. It is characterized by being installed horizontally on the side of the vehicle.

(Function) According to the above structure, in the elevator for a low-rise building of the present invention, the winding drum type lifting drive device is installed horizontally on the side part located on the car door side in the lower part of the hoistway, so that the winding drum type lifting drive device The drive device is disposed in an empty space on the side of the car door pocket 3a outside the range of the car projection plane in the hoistway. This allows workers to safely perform maintenance and inspection of reducers and other work, as well as restoration of cars that have stopped in an emergency, from outside the car without having to go under the car. In addition, since the drive device is mounted horizontally, it occupies a small proportion of the planar space of the pit, making it possible to secure a large space for inspection and maintenance work.
Work efficiency can be improved.

In addition, since the drive device is located outside the range of the car projection plane in the hoistway, even if the car descends to the lowest floor, it will not come into contact with the reducer, winding drum, etc. The depth can be made shallower, making construction easier and reducing costs.

(Example) An example of the present invention will be described below with reference to FIGS. 1 to 3. In the figure, components that overlap with those shown in FIGS. 4 and 5 are given the same reference numerals to simplify the explanation. First, FIG. In the figure, the second
The figure is a front view of the same, and FIG. 3 is a side view of the same.

A winding drum type lifting drive device 4 consisting of a motor 7, a speed reducer 8, and a winding drum 9 is installed in the lower pit portion of the hoistway 1 as in the conventional case.
is provided. Here, the winding drum-type lifting drive device (hereinafter simply referred to as the drive device) 4 is disposed outside the range of the projection plane of the car 3 at the lower end bit part in the hoistway 1.
It is installed horizontally on a side portion located on the side of the car door pocket 3a (left side in the figure). In other words, a pair of upper and lower machine beams 6 are fixed horizontally in the front-rear direction on the left side of the bottom pit of the free-standing steel frame 2 that constitutes the hoistway 1, and the upper and lower machine beams 6 are fitted with anti-vibration rubber. A machine bed 10 is installed vertically with a motor 7 interposed therebetween, and a motor 7, a speed reducer 8, and a winding drum 9 are installed on the inner surface of this machine bed 10.
A drive device f4 consisting of the following is attached sideways and arranged in an empty space on the side of the car door pocket 3a outside the range of the projection plane of the car 3.

In the case of an elevator for a low-rise building having the above-mentioned configuration, the drive device 4 is installed horizontally on the side of the car door 3a in the lower part of the hoistway 1, so that the drive device 4 can move up and down. Car door pocket 3a outside the range of the car 3 projection surface in road 1
It will be placed in the empty space on the side.

This allows workers to perform maintenance and inspection of the reducer 8, etc., and recovery of the car 3 after an emergency stop, safely outside the car 3 without having to enter the underside of the car 3. In addition, since the drive device 4 is mounted horizontally, it occupies a small proportion of the planar space of the pit, and a large space for inspection and maintenance work can be secured, improving work efficiency.

Furthermore, since the drive device 4 is arranged outside the range of the car projection plane in the hoistway 1, even if the car 3 descends to the lowest floor, the reducer 8
Since there is no contact with the winding drum 9, etc., the depth of the bit part can be made shallow, which makes installation easier and reduces costs.

Furthermore, when car 3 stops mid-floor for some reason,
When restoring the problem, the driving device 4 can be easily visually confirmed from the hall on the first floor, and countermeasures can be taken, which is convenient. There is also the advantage that even in the unlikely event that the lower end bit portion in the hoistway is submerged in water, there is a low possibility that the drive device 4 will be submerged in water.

〔Effect of the invention〕

As described above, in the present invention, the winding trunk type lifting drive device is installed horizontally on the side portion located on the side of the car door in the lower part of the hoistway. It is placed in the empty space on the side of the car door pocket 3a, and this allows workers to safely perform maintenance and inspection of reducers, etc., and recovery of cars that have stopped in an emergency from outside without entering the bottom of the car. Since the drive device is installed horizontally, it occupies less space in the bit section in plan view, making it possible to secure a wide space for inspection, maintenance, etc., and improve workability. In addition, since the drive device is located outside the range of the car projection plane in the hoistway, even if the car descends to the lowest floor, it will not come into contact with the reducer, winding drum, etc. This is an elevator for low-rise buildings that offers many advantages over conventional elevators, such as being shallower, easier to install, and lower costs.

[Brief explanation of drawings]

Fig. 1 is a plan view of essential parts showing an embodiment of the present invention, Fig. 2 is a front view of the same, Fig. 3 is a side view of the same, Fig. 4 is a plan view of a conventional example, and Fig. 5 is a plan view of the same. It is a front view of a conventional example. 1... Hoistway, 3... Car, 3a... Car door pocket,
4... Rolling drum type lifting/lowering drive device. Figure 1 Figure 2-

Claims (1)

[Claims] In an elevator for a low-rise building installed in a private residence, etc., which is equipped with a car and a winding trunk type lifting drive device in the hoistway, the winding drum type lifting drive device is installed in a side portion located on the side of the car door in the lower part of the hoistway. An elevator for a low-rise building, characterized by being installed next to the building.