JPH0780660B2 - Small elevator for lower floors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a low-rise floor small elevator installed and used in a low-rise building such as an individual residence.

(Prior Art) In recent years, there is an increasing demand for small elevators for low-rise floors that can be installed in single-family homes as a measure against the elderly. In the case of such an individual housing, there is a strong demand for downsizing and weight saving as well as space saving.

FIGS. 4 and 5 show a conventional small-sized elevator for low-rise floors, in which a hoistway 3 is constructed within a building 1 by being surrounded by a wall 2 made of reinforced concrete, and the hoistway 3 extends to each floor. The entrance / exit opening 4 is formed, and the entrance / exit device 5 such as an entrance / exit frame or a door is installed therein. Further, a pair of left and right guide rails 7 are provided in the hoistway 3 via rail brackets 6, respectively, and a car 8 is provided so as to be guided by the left and right guide rails 7 to ascend and descend. 8 is suspended by a hoisting rope 11 suspended from a sheave 10 provided via a receiving beam 9 installed on the upper end of the hoistway 3. The hoisting rope
11 is wound around the sheave 10 at the upper part and then conducted to the lower end in the hoistway 3, is installed in the lower machine room, and is directly wound around the winding cylinder hoist 12. By winding and unwinding the hoisting rope 11 by the hoisting machine 12, the car 8 is directly driven up and down on each floor.

Like the general elevator, the car 8 includes a car room 13, a lower car floor 14 and a car frame 15 for supporting the car room 13. The car frame 15 supports a lower beam 15a for supporting the car floor 14 from below.
A stand frame 1 that is erected from the left and right ends of this lower beam 15a.
5b and the upper beam 15c which is crossed over the upper ends of the left and right standing frames 15b.
It is composed of. By connecting the middle part of the upper beam 15c of the car frame 15 to the hoisting rope 11, the whole is suspended so that it can be driven up and down, and the guide shoes are attached to the upper and lower ends of the outer surfaces of the left and right standing frames 15b of the car frame 15. (Not shown) is attached,
These are guided by the left and right guide rails 7 so as to slide up and down without tilting.

(Problems to be solved by the invention) By the way, in the above-described conventional small-sized low-rise elevator, first, like the general elevator, the middle portion of the upper beam 15c of the car frame 15 of the car 8 is suspended by the hoisting rope 11. Since it is small, it is a lower beam that makes up the car frame 15.
Since many members such as 15a, the left and right standing frames 15b, and the upper beam 15c are required, and a large size of those shapes is required, the weight becomes heavy. As a result, not only the receiving beam 9 and the sheave 10 above the hoistway 3 become large,
There is a problem that it is necessary to increase the strength of the hoistway 3 that supports the hoistway 3 and that the hoisting machine 12 that drives the car 8 also needs a large capacity. Further, since the car 8 has the stand frame 15b of the car frame 15 arranged on the outside of the car room 13 and the car floor 14, the lateral width becomes large, which requires a wide planar space in the hoistway 3. In other words, even for small elevators for low-rise floors, because the weight of the car is large and wide, a large strength and a large installation space are required. It was difficult.

The present invention has been made in view of the above circumstances, and can significantly reduce the number of car frame members to reduce the weight and size of a car, reduce the strength and capacity of the hoistway and drive unit, and reduce the installation space. The purpose of the present invention is to provide a small elevator for low-rise floors, which is very useful for downsizing, and becomes an extremely efficient system as a whole, which is most suitable for installation and use in houses for individuals.

[Structure of Invention]

(Means for Solving the Problem) In order to achieve the above object, a small elevator for a low floor of the present invention has a passenger car, a car room, a lower beam that supports the car floor at the lower end from below, and a car. It is composed of a car room reinforcing member that extends downward from the back of the room side plate and is connected to and supported by the lower beam, and the car is suspended by connecting the hoisting rope of the hoisting machine to both ends of the lower beam. It is characterized in that it is configured to be held and driven to move up and down, and a guide shoe is provided on the upper part of the car room to prevent the car from collapsing by sliding with a guide rail in the hoistway.

(Operation) With the above configuration, since the car is hung by connecting the hoisting rope of the hoisting machine to both ends of the lower beam, the left and right standing frames and the upper beam are not required among the conventional car frame members. As a result, the frame members can be significantly reduced, and the weight of the car can be reduced. Also, since the car room reinforcing member on the back of the car room side plate is extended downward and is connected and supported by the lower beam, there is nothing that protrudes greatly to the left and right like the conventional left and right stand frames, and the overall size of the car can be reduced. In addition, it is possible to prevent the vehicle from collapsing by the guide shoe provided on the upper portion of the cab without any problem in strength due to the cab reinforcing member. By reducing the size and weight of the car, the strength and capacity of each component of the hoistway and drive unit can be reduced, and the installation space can be reduced.
The whole elevator becomes a very efficient system.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

First of all, reference numeral 21 in the drawing denotes a car, which is a car room 22 composed of a plurality of side plates 22a and ceiling plates 22b, a car floor 23 constituting the bottom thereof, and a front and rear of which the car floor 23 is supported from below. It is composed of a pair of lower beams 24, and is configured such that, of the members of the conventional car frame, the left and right upright frames and the upper beam are not provided. The car floor 23 is fixed to a lower beam 24 below the car floor 23, and the side plates 22a of the car room 22 are fixed to the car floor 23, so that the entire car 21 is integrated. In addition, the left and right side plates of the car room 22 of this car 21
Reinforcing members 25 and 26 such as light groove shaped steel are superposed on the back surface of the ceiling 22a and the upper surface of the ceiling plate 22b, and the reinforcing members 2 on the left and right sides of the reinforcing members
5 are each extended straight downward, and the lower end extended portions are fitted between the front and rear lower beams 24 from inside the recesses 23a formed in the left and right portions of the car floor 23 and are fixed to each by bolts or the like. The cab 22 is reinforced.

Guide shoes are attached to both lower ends of the lower beam 24 of the car 21.
27 are provided respectively, and the reinforcing member 26 above the cab 22 is provided.
Guide shoes 29 are provided at both ends of the upper surface via mounting plates 28. By sliding the pair of upper, lower, left and right guide shoes 27, 29 onto the left and right guide rails 31 in the hoistway 30, the car 21 is guided in the hoistway 30 by the guide rails 31.
It is installed so that it can be moved up and down without being fallen down by being guided by.

A hoist drum type hoist 32 for lifting and lowering the car 21 is installed at the lower end of the hoistway 30. A plurality of hoisting ropes 33 wound around the hoisting body of the hoisting machine 32 are distributed and led out to the left and right. The hoisting ropes 33, 33 on the left and right of the hoistway 3
0 It is pulled up right above through the guide sheaves 34, 35 arranged on the left and right sides of the lower end, and wrapped around the sheaves 37, 38 provided on the left and right ends of the receiving beam 36 installed on the upper end of the hoistway 30. It is hanging. And the ends of the left and right hoisting ropes 33, 33 that are suspended are connected to the left and right ends of the lower beam 24 of the car 21 in a well-balanced manner, and the car 21 is suspended. There is. The ends of the left and right hoisting ropes 33, 33 are connected to the left and right ends of the lower beam 24 by a rope hitch rod 39 and a spring 40 so that their lengths can be adjusted.

Reference numeral 41 in FIG. 1 denotes a buffer receiving beam which is horizontally provided above the hoisting machine 32 at the lower end of the hoistway 30. A buffer 42 is provided for buffering the shock when the car is dropped.

Thus, in the small elevator for the low floor with the above-mentioned configuration,
The car 21 is mounted on both ends of the lower beam 24, and the left and right hoisting ropes of the hoisting machine 32
Since it was suspended by connecting 33, 33, the car 21
The total load of the rope acts on the lower beam 24 and the left and right hoisting ropes 33, 33
Supported by. Therefore, the left and right upright frames and the upper beam are not required among the respective members of the conventional car frame, the frame members can be significantly reduced, and the weight of the car 21 can be significantly reduced.

Also, since the suspension points at both ends of the lower beam 24 by the left and right hoisting ropes 33, 33 are symmetrically arranged in a balanced manner with the guide rail 31 sandwiched therebetween, the influence of an unbalanced load on the car 21 is small, and the car room 22 The reinforcing member 25 on the back surface of the left right side plate 22a is extended downward to be connected and supported by the car floor 23 and the lower beam 24 to obtain the rigidity of the car room 22 and to be attached to both ends of the reinforcing member 26 of the upper ceiling plate 22. Since the guide shoes 29 are provided via the plate 28 and guided by the left and right guide rails 31, the holding strength for preventing the cab 22 from falling is sufficient. Even if the lengths of the left and right hoisting ropes 33, 33 are unbalanced, the ropes can be easily adjusted by the ropes 29 for the rope hitches and the springs 40.

Further, unlike the conventional left and right stand frames, there are no large protruding parts on the outside of the left and right side plates 22a of the car room 22 of the car 21, and the narrow B dimension shown in FIG. 2 with respect to the A dimension shown in FIG. Then, the entire car 21 can be downsized.

By reducing the size and weight of the car 21, the strength and capacity of each component of the hoistway 30 and the drive unit can be reduced, and the installation space can be reduced. Further, the receiving beam 36 at the upper end of the hoistway 30 has two load points on the left and right, which are close to the fixed positions at both ends, so that it is possible to reduce the size unlike the conventional concentrated load at one point in the center. Moreover, the upper sheaves 37 and 38 do not have to have a large diameter in order to secure the distance between the hanging centers unlike the conventional sheaves, and a very small diameter can be used. Further, the hoisting machine 32 can be installed directly below the buffer 42 at the lower end of the hoistway 30, and there is no need to provide a machine room projecting laterally from the lower part of the hoistway as in the prior art, which makes it more compact. The advantages of

〔The invention's effect〕

Since the present invention is as described above, the car frame member can be significantly reduced, the weight of the car can be reduced and the size of the car can be reduced, and the strength and capacity of each component of the hoistway and the drive unit can be reduced and the installation space can be reduced. It will be a very efficient system as a whole, and it will be a very efficient system as a whole, and it will be a small elevator for low-rise floors that is most suitable for installation and use in individual residences.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a schematic configuration diagram of the whole, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. FIG. 4 is an exploded perspective view of a car, FIG. 4 is an overall schematic configuration diagram showing a conventional example, and FIG. 5 is a plan view of the conventional example. 21 …… car, 22 …… car room, 22a …… side plate, 23 …… car floor, 24 …… bottom beam, 25 …… reinforcing member, 27,29 …… guide shoe, 30 …… hoistway, 31 ...... Guide rail, 32 …… Hoisting machine, 33 …… Hoisting rope 1.

Claims (1)

[Claims] 1. In a small elevator for a low floor, in which a car is hung by a hoisting rope and directly driven up and down by a hoist, the car is supported from below by a car room and a car floor at its lower end. And a car room reinforcing member that extends downward from the rear surface of the car room side plate and is connected to and supported by the lower beam, and connects the hoisting rope to the car at both ends of the car. A small elevator for low-rise floors, characterized by being configured to be hung by a guide shoe for preventing the car from collapsing by sliding on a guide rail in the hoistway at the upper part of the car room.