JPH11310372A - Elevator equipment - Google Patents

Abstract

(57) [Problem] To provide an elevator apparatus capable of suppressing the height of a hoistway and increasing the speed. SOLUTION: In 1: 1 roping, a thin driving device composed of a traction sheave 1 and a driving mechanism 2 is combined with a space formed by a projection surface of a car 4 in a vertical direction,
The car 4 is installed between the hoistway 3 and the inner side wall 3a, and the car 4 to which one end of the hanging rope 7 is connected is attached to the car 4
Below the ceiling 4c. As a result, the car 4 can be effectively moved near the ceiling in the hoistway 3 with the increase in speed, and the height of the hoistway 3 can be suppressed and the height of the building can be limited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a traction type elevator apparatus having a driving device installed in a hoistway.

[0002]

2. Description of the Related Art In recent years, especially in urban areas, efficient use of buildings themselves has been demanded. For example, a machine room of an elevator projecting on a rooftop or the like has an effect on a sunshine problem or has an aesthetic appearance. It's getting worse.

[0003] In the past, there have been various ideas for housing an elevator control device in a hoistway and reducing the size without installing an elevator machine room. For example, in a “traction sheave elevator” described in Japanese Patent No. 2593288, as shown in FIG. 14, a flat and thin drive mechanism 2 having a traction sheave 1 is configured such that a side wall 3 a in a hoistway 3 and an elevator car 4 The hanging rope 7 is installed between the sheave 5 a at the lower part of the car 4 and the sheave 5 b at the upper part of the counterweight 6, which is installed between the space formed by the projection plane in the vertical direction and both ends of the hanging rope 7. Is fixed to the ceiling wall 3b of the hoistway 3.
In FIG. 14, the pit 3c in the hoistway 3 is located on the first floor (1
F) indicates that it is located below the position 3d.

[0004] The elevator shown in FIG.
This is a system in which a hanging rope 7 is wound around a lower sheave 5a to drive the car in a dynamic and pulley manner. With the above structure, the space above the car 4 can be effectively used, and the motor capacity of the drive mechanism is relatively small. As a result, the space occupied by the driving device can be reduced.

In the "elevator" disclosed in Japanese Patent Application Laid-Open No. 9-156855, a flat and thin drive mechanism 2 is disposed in the space above the counterweight 6 as shown in FIG.
Warp sheaves 8a, 8 provided at the top in the hoistway 3
The basket 4 is configured to be suspended via the b and 8c.

As described above, the flat and thin drive mechanism 2 having the traction sheave 1 is installed between the side wall 3a in the hoistway 3 and the space formed by the vertical projection plane of the elevator car 4. Accordingly, the space occupied by the entire apparatus can be reduced in size without providing a special machine room on the roof or the like, and an elevator apparatus with high space efficiency can be realized.

[0007]

Although the above-mentioned conventional elevator apparatus is, for example, the elevator apparatus shown in FIG. 14, the so-called 2: 1 roping is constituted by a moving pulley drive system, and therefore, the elevator apparatus has a lower speed than the elevator speed. The rope speed doubled, which was a problem in increasing the speed of the elevator. In addition, since the drive mechanism is housed in the space between the projection surface of the elevator car and the inner wall of the hoistway, the drive mechanism is configured to be flat, thin and small, so there is a problem in increasing the capacity. It remains.

Further, in the elevator apparatus shown in FIG. 15, since the warp sheave is provided near the hoistway ceiling,
Although the speed of the suspension rope is the same as the speed of the elevator car, a space for accommodating the turning sheave is required at the upper part of the hoistway, and thus there is a problem in the effective use of the space in the hoistway.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an elevator apparatus capable of simultaneously increasing the speed while suppressing the height of a hoistway without providing a special machine room. Aim.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the invention according to claim 1 is directed to a car that moves up and down along a pair of guide rails provided in a hoistway and one end of the car. An elevator apparatus comprising: a suspension rope fixed to the counterweight, the other end of which is raised and lowered along another guide rail; and a driving device having a traction sheave wound around the suspension rope, wherein the hoistway inner wall It is provided between the space formed by the projection plane of the car in the vertical direction and a driving device having a low profile, and a car having one end of the hanging rope coupled at a position below the car ceiling. And

Thus, in the elevator apparatus according to the first aspect of the present invention, the same speed as the hanging rope and the elevator car is realized by 1: 1 roping, and the hanging rope is moved to the car at a position below the ceiling of the elevator car. In addition to connecting and fixing the car, no turning sheave or the like is interposed in the space above the car, so the upper part of the hoistway can be effectively used, and both high speed and compactness have been made possible.

According to a second aspect of the present invention, in the elevator apparatus of the first aspect, the driving device includes a plurality of driving mechanisms each having a traction sheave, and the suspension rope is wound around each of the traction sheaves. And being coupled to the car and the counterweight.

According to a third aspect of the present invention, in the elevator apparatus according to the second aspect of the present invention, the plurality of drive mechanisms are vertically arranged, and the traction sheave connected to the upper drive mechanism has a plurality of suspension ropes. According to a fourth aspect of the present invention, in the elevator apparatus of the second aspect, the plurality of drive mechanisms are arranged in the left-right direction, and traction sheave surfaces connected to the left and right drive mechanisms substantially coincide with each other. It is characterized by being arranged so that.

As described above, the elevator apparatus according to the second to fourth aspects of the present invention has a plurality of drive mechanisms, so that it is possible to realize high speed and large capacity.

According to a fifth aspect of the present invention, in the elevator apparatus according to any one of the first to fourth aspects, a guide rail installed on the drive mechanism side among the pair of guide rails is The cross section has an H shape, and the pair of parallel side faces is disposed so as to face the side of the car, and two sets of rollers provided on the car sandwich one of the left and right sides of the parallel side portion. It is configured to guide the car.

As described above, in the elevator apparatus according to the fifth aspect of the present invention, since the guide rail has the H-shaped cross section, greater rigidity is obtained and more stable traveling is possible.

According to a sixth aspect of the present invention, in the elevator apparatus according to the fifth aspect, the two sets of rollers are mounted on a vertical frame of an L-shaped beam for mounting and supporting the car. At the tip of the horizontal frame of the beam, another roller for guiding the car across the guide rail installed on the opposite side to the drive mechanism among the pair of guide rails is attached. I do.

As described above, according to the sixth aspect of the present invention, the car
Since it is supported by the character-shaped beam, the car can be firmly supported by a simple configuration in addition to the stable vertical movement.

According to a seventh aspect of the present invention, in the elevator apparatus according to any one of the first to sixth aspects, the suspension ropes have one ends substantially symmetrical with each other on the outer surfaces of the car facing each other. Are fixed at the positions
It is characterized in that it is configured to have two systems.

As described above, according to the invention of claim 7, the suspension ropes are fixed in two positions at one end of each of the opposite outer surfaces of the car, so that a stable car posture can be obtained. Can be

According to an eighth aspect of the present invention, in the elevator apparatus according to the seventh aspect, a driving device is installed near the ground floor in the hoistway.

As described above, according to the invention of claim 8, since the drive device is installed near the ground floor in the hoistway, the height to the ceiling of the hoistway can be restricted to a minimum, and the worker can Maintenance and inspection can be performed near the ground, and the burden on workers can be reduced.

According to a ninth aspect of the present invention, in the elevator apparatus according to the first aspect, other guide rails are provided along inner wall surfaces of the hoistway that oppose each other, and are guided by these other guide rails. One end of a suspension rope is fixed to each of the pair of counterweights that move up and down, and the other end is fixed to the car via a pair of driving devices provided correspondingly.

As described above, according to the ninth aspect of the present invention, the pair of driving devices are connected to the pair of counterweights provided so as to correspond to each other, and move one car up and down. Can be realized.

According to a tenth aspect of the present invention, in the elevator apparatus according to the first aspect, the suspension rope has one end fixed to the outer surfaces of the car facing each other, and the other end connected to each of the outer surfaces. It is characterized by being fixed to one of the counterweights attached along the inner wall of the hoistway behind the car via a traction sheave of the driving device provided correspondingly.

Also in the present invention, the pair of driving devices
Since it is configured to be connected to the counterweight and one car is moved up and down, a large capacity can be realized similarly.

According to an eleventh aspect of the present invention, in the elevator apparatus according to any one of the first to tenth aspects, the drive mechanism is attached to an inner side wall or a ceiling wall of the hoistway. And

Therefore, according to the eleventh aspect of the present invention, the load on the guide rail is reduced by mounting the driving device on the hoistway side, and the weight can be reduced.

According to a twelfth aspect of the present invention, there is provided a car which moves up and down along a pair of guide rails provided in a hoistway, and one end of which is fixed to the car and the other end of which moves up and down along another guide rail. In an elevator apparatus including a hanging rope fixed to a weight and a driving device having a traction sheave wound around the hanging rope, a driving device installed in a pit of the hoistway, and one end of the hanging rope are provided. The cage is provided at a position below the car ceiling, and both ends of the suspension rope wound around the traction sheave of the drive unit are connected to the car and the counterweight via the warp sheaves respectively provided above the hoistway. The connection is fixed.

Thus, according to the twelfth aspect,
The same speed as the hanging rope and the elevator car was realized by 1: 1 roping, and the driving device was installed in the pit, and the connecting and fixing of the hanging rope car was performed below the car ceiling. It is possible to provide an elevator apparatus capable of effectively utilizing the inner upper portion, increasing the speed, and increasing the capacity.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An elevator apparatus according to the present invention comprises:
By configuring one end of the hanging rope to be connected to the car at a position below the car ceiling, the speed of the elevator has been increased and the space on the car has been used efficiently, making it possible to save space as a whole. One embodiment will be described in detail below with reference to FIGS. 14 and 15 are denoted by the same reference numerals, and detailed description is omitted.

FIG. 1 shows a first embodiment of an elevator apparatus according to the present invention.
FIG. 2 is an enlarged plan view of the embodiment. That is, guide rails 9a and 9b for the car 4 having a T-shaped cross section are attached to the side wall 3a of the hoistway 3 via a bracket (not shown), and the left side of the floor 4a of the car 4, that is, the car ceiling of the elevator car 4. A lower portion of the hitch portion 4b is provided below the lower portion 4c.
One end of the suspension rope 7 is connected and fixed to b through a hitch spring (not shown).

FIG. 2 shows the top of the guide rail 9a.
As shown in the plan view of FIG. 1, a flat and thin drive mechanism provided with a traction sheave 1 so as to be accommodated in a space between a side wall 3a of a hoistway 3 and a vertical projection surface of an elevator car 4. 2 is fixed to the guide rail 9a, and a suspension rope 7 is wound around the traction sheave 1.
Guide rails 10a and 10b for guiding the counterweight 6 are provided adjacent to the car guide rail 9a,
The other end of the suspension rope 7 is connected to the upper end of the counterweight 6.

In the elevator apparatus constructed as described above, the elevator car 4 and the counterweight 6 connected to both ends of the suspension rope 7 correspond to each other by rotating the traction sheave 1 connected to the drive mechanism 2. Guide rails 9a, 9b, 10a, 10b.

At this time, since the elevator car 4 is connected to the suspension rope 7 at the hitch portion 4b provided below the car ceiling 4c, the car ceiling 4c is attached when the car 4 rises. Can rise above the height of the drive mechanism 2.

Accordingly, the elevator apparatus according to the first embodiment is constructed by 1: 1 roping as described above, so that the car 4 and the suspension rope 7 are driven at the same speed, and the speed is increased. In this embodiment, the driving device including the traction sheave 1 and the driving mechanism 2 is housed in the space between the side wall 3a of the hoistway 3 and the projection plane of the elevator car 4 in the vertical direction. The car 4 can be raised to the vicinity of the ceiling of the hoistway 3, so that the height of the hoistway 3 can be minimized as a whole, and space can be saved.

In the above-described first embodiment, the drive device is described as being constituted by one drive mechanism 2. However, the drive mechanism 2 is constituted by two (plural) units, and in addition to high speed, large capacity Can be realized.

That is, in the elevator apparatus according to the present invention, a second embodiment in which the driving device is constituted by a plurality of driving mechanisms to realize high speed and large capacity will be described with reference to FIGS. explain.

The elevator apparatus according to the second embodiment has a cross section T for the car 4 as shown in FIG. 3 or FIG.
A flat and thin drive device provided on the top of the letter-shaped guide rail 9a is constituted by a plurality of drive mechanisms 2A and 2B, and these drive mechanisms 2A and 2B are vertically arranged as shown in FIG.
Alternatively, as shown in FIG. 4, the traction sheaves 1A and 1B connected in a corresponding manner are respectively driven by these driving mechanisms 2A and 2B.

Therefore, for example, in FIG. 3, the suspension rope 7 having one end connected to the lower counterweight 6 is wound around the upper half of the upper traction sheave 1A and then wound around the lower half of the lower traction sheave 1B. The elevator car 4A is again wrapped around the upper half of the upper traction sheave 1A and descends downward, and is connected to a hitch portion 4b provided below the elevator car 4. In this case, since the upper traction sheave 1A is wound twice, the rope groove width of the upper traction sheave 1A is formed to be twice the rope groove width of the lower traction sheave 1B. Further, in FIG. 3, since the suspension rope 7 is wound twice around the upper half of the upper traction sheave 1A, a total of 3/4 turns are wound on each of the upper and lower two sheaves 1A and 1B. After that, it is connected to the counterweight 6 and the elevator car 4, which is the same in the configuration shown in FIG.

As described above, according to the second embodiment,
The elevator car 4 moves at a high speed at the same speed as the suspension rope 7, and the car 4 achieves a large capacity because it obtains thrust from both the two (plural) traction sheaves 1A and 1B.

As shown in FIG. 4, when the traction sheaves 1A and 1B are juxtaposed in the left-right direction, a large wrapping angle can be obtained especially for both the traction sheaves 1A and 1B, so that a larger traction performance can be obtained. There are advantages.

In the first and second embodiments, the guide rails 9a and 9b of the car have been described as having a T-shaped cross section. However, one of the guide rails 9a is configured to have an H-shaped cross section. As a result, it is possible to provide an elevator apparatus which can obtain greater rigidity and enable more stable traveling.

That is, the third of the elevator apparatus according to the present invention in which one of the guide rails for the car 4 has an H-shaped cross section.
The embodiment will be described below with reference to FIGS.

That is, in FIG. 5, one of the guide rails 9a, 9c for the car 4 is one of the guide rails 9c.
6, the guide rail 9c is provided on one side wall 3a of the hoistway 3, and a pair of parallel side surfaces is provided on the car 4 side. And was fixed via a bracket (not shown) so as to be opposed to.

A flat traction sheave 1 is provided at the top of the guide rail 9c so as to be accommodated between the space formed by the vertical projection plane of the car 4 and the side wall 3a of the hoistway 3. It is configured to provide a thin drive mechanism 2.

In this embodiment, an L-shaped car frame 11 on which the car 4 is placed and supported at the center of gravity is formed, and the vertical beam 11a of the car frame 11 is shown in FIG. As described above, of the configuration of the guide rail 9c having the H-shaped cross section,
Guide rollers 12a and 12b having a plurality of rollers 12aa and 12ba are mounted vertically so as to sandwich and guide the parallel side portion 9ca closer to the car 4 on both left and right sides.

Further, similarly to the other embodiments, a roller 12c for guiding the car 4 along the T-shaped guide rail 9a is attached to the tip of the cross beam 11b of the L-shaped car frame 11. .

Although the guide rails 10a and 10b for the counterweight 6 are not shown in FIGS. 5 and 6, they are provided adjacent to the guide rail 9c for the car 4 and are located above the counterweight 6. A suspension rope 7 having one end connected thereto is wound around the traction sheave 1 of the driving device, and the other end is connected to an L-shaped car frame 11.
And is fixedly connected to a hitch portion 4b attached below.

In the third embodiment configured as described above, the car 4 includes upper and lower guide rollers 12a and 12b.
The guide rail 9c is guided while being supported by the vertical beam 11a, but the swing in the rotation direction about the longitudinal direction of the guide rail 9c is caused by the rollers 12aa, 12ba pressing one of the parallel sides 9ca from the front and back sides. Is suppressed.

The guide roller 12 attached to the tip of the cross beam 11b also prevents the car 4 from swinging in the front-rear direction.
Since c guides the guide rail 9c while sandwiching it, swinging is suppressed and stable ascending and descending movement is performed.

As described above, according to the third embodiment, similar to the first and second embodiments, no special machine room is provided on the roof or the like, and the space can be saved and the speed can be increased. In addition to being possible, the adoption of the guide rail 9c having a H-shaped cross section and obtaining a large rigidity enables stable vertical movement.

The car 4 is a cross beam 1 of the L-shaped car frame 11.
By 1b, it is lightly and robustly supported by a simple configuration.

In each of the first to third embodiments, the car 4 and the counterweight 6 are connected by one suspension rope 7, but two (plural) suspensions are used. By connecting with the rope 7, the car can be run more stably and at higher speed.

Next, a fourth embodiment of the elevator apparatus according to the present invention, in which the car 4 and the counterweight 6 are connected by two (plural) hanging ropes 7, is shown in FIGS. This will be described below with reference to FIG.

That is, in FIG. 7 and FIG.
The flat and thin drive mechanism 2 in which the traction sheave 1 is connected to one of the guide rails 9a and 9b for guiding the same as in the first to third embodiments,
It was configured to be housed in the space between the elevator car 4 and the side wall 3a of the hoistway 3.

That is, two sheaves 8d and 8e are provided on the top of one guide rail 9a in parallel with the left and right side surfaces of the elevator car 4 and intersect with the sheaves at about 45 degrees, and the car 4 is vertically moved. A single sheave 8f is provided at a position excluding a space formed by projecting the sheave 8f.

The hitch portions 4ba, 4bb for connecting the hanging rope 7 are provided below the car 4, and the hitch portions 4ba, 4bb are located at positions symmetrical to each other with respect to the position of the center of gravity of the car 4. Is provided. In addition, sheaves 8d and 8g corresponding to the hitch portions 4ba and 4bb, respectively.
Is attached to the side wall 3 a of the hoistway 3 so as to exclude a space formed by the vertical projection of the car 4.

Accordingly, the two suspension ropes 7, one end of which is connected to the counterweight 6, are connected to the hoistway 3 above the counterweight 6, the ceiling wall 3 b
Is wound around the traction sheave 1 of the drive device after being turned back by the sheave 8e attached to the drive device, and then divided into two directions, that is, two systems.

One end of the two suspension ropes 7 divided into two systems is connected to a sheave 8 attached to the wall of the hoistway 3.
Through d, it is connected to the car 4 at one hitch portion 4ba provided below the car ceiling 4c.

The other end of each of the two hanging ropes 7 divided into two systems is connected to the right side wall of the hoistway 3 via a sheave 8f attached at an angle of about 45 degrees to the side wall of the hoistway 3. 8g of sheave also attached at about 45 degrees diagonally
, And is similarly connected to the car 4 at the other hitch portion 4bb provided below the car ceiling 4c.

In the fourth embodiment constructed as described above, the suspension rope 7 divided into two systems is driven by the driving mechanism 2 to drive the car 4 via sheaves 8d, 8f, 8g.
And the counterweight 6 is moved up and down via the sheave 8e.

Therefore, according to the fourth embodiment,
The car 4 moves up and down at a high speed at the same speed as the hanging rope 7 by 1: 1 roping. In addition, the car 4 runs by hanging the car 4 diagonally on both right and left sides by two hanging ropes 7. Is stable. In addition, since the sheaves 8d, 8e, 8f, and 8g including the driving device are provided so as to avoid the space formed by projecting the car 4 in the vertical direction, the car 4 The elevator apparatus including the hoistway 3 can be made compact by improving the efficiency of use of the hoistway 3 because it can be raised near the ceiling wall.

Next, the suspension positions on the left and right sides of the elevator car 4 are arranged so as to be symmetrical with respect to the position of the center of gravity of the car 4, and the driving devices as shown in FIG. The capacity can be increased.

A fifth embodiment of the elevator apparatus according to the present invention, which has realized a large capacity by installing a set of driving devices, will be described with reference to FIGS. 9 and 10. FIG.

In the fifth embodiment shown in FIGS. 9 and 10, drive mechanisms 2A and 2B, which are connected to traction sheaves 1A and 1B, are mounted near the tops of guide rails 9a and 9b for guiding the car 4, respectively. did. Also, adjacent to the car 4 guide rails 9a and 9b,
Guide rails 10aa, 10 for two counterweights 6A, 6B
ba, 10ab, and 10bb are provided. Hitch portions 4ba, 4bb are attached to left and right sides of the elevator car 4 at left and right target positions below the car ceiling, and suspension ropes 7A, 7B each having one end connected thereto are wound around traction sheaves 1A, 1B, respectively. Balance weight 4
A, 4B.

In the fifth embodiment configured as described above, since the drive mechanisms 2A and 2B on both sides are operated in synchronization, they are driven by one control device. The car 4 is driven up and down by the two drive mechanisms 2A and 2B to obtain a large thrust. Moreover, since each of the hanging ropes 7A and 7B constitutes 1: 1 roping, the moving speed of the car 4 is the same as that of the hanging ropes 7A and 7B, and the speed is increased.

Also in this embodiment, as in the other embodiments, since the driving devices 1A and 1B are mounted at positions excluding the vertical projection space of the car 4, the special machines are mounted on the roof or the like. There is no need to provide a chamber, and the height of the hoistway 3 can be suppressed. In addition, by arranging the hanging positions of the hanging ropes 7A and 7B on both the left and right sides symmetrically with respect to the center of gravity of the car 4, the posture of the car 4 during traveling can be stabilized.

In the fifth embodiment, the counterweights 6A and 6B are provided on both the left and right sides of the car 4, respectively. However, the configuration can be simplified by sharing the counterweight.

That is, a sixth embodiment of the elevator apparatus according to the present invention, in which a common counterweight is used, will be described in detail with reference to FIGS.

That is, in FIGS. 11 and 12, drive mechanisms 2A and 2B having traction sheaves 1A and 1Bb are provided near the tops of guide rails 9a and 9b for guiding the car 4, respectively. Guide rails 9a, 9
In the rear hoistway 3 between "b" and "b", one counterweight 6 commonly connected and used is configured to move up and down while being guided by the guide rails 10a and 10b.

Therefore, on each of the left and right sides of the car 4, the hitch portions 4ba, 4ba,
Suspended ropes 7A and 7B are connected to 4bb, and the suspended ropes 7A and 7B are connected to the traction sheave 1 respectively.
A and 1B are wound around and connected to a common counterweight 6.

In the sixth embodiment configured as described above, the driving devices 2A and 2B on both the left and right sides are controlled by a single control device, and are driven at the same speed in synchronization with each other. 4 moves up and down. Further, the car 4 receives thrust from the two driving mechanisms 2A and 2B, and
It moves up and down at the same speed as A and 7B. Further, similarly to the first to fifth embodiments, the driving device and the sheave 8h are used.
By providing a, 8hb, 8ia, and 8ib so as to avoid the space of the vertical projection plane of the car 4, the height of the hoistway 3 can be minimized.

As described above, in each of the first to sixth embodiments, the driving device is provided on the top of the guide rail 9a for the car 4 or on the wall of the hoistway 3, and in the vertical direction of the car 4. Has been described as being mounted at a position excluding the space formed by the projection of the car, but if it is a position excluding the space formed by the projection of the car 4 in the vertical direction, the hoistway near the floor of the first floor 3 can also be mounted.

When the driving device and the like are fixedly provided on the guide rail, the mounting and fixing are relatively easy. However, when the guide rail is loaded, on the other hand, when the driving device is mounted on the wall of the hoistway 3, the opposite occurs. In addition, there is an effect that a structural load does not need to be applied to the guide rail.

The driving device 2 is connected to the first floor (1F) of the hoistway.
In the case where it is provided in the vicinity, the height to the ceiling of the hoistway can be limited to a minimum as in the above embodiments, and at the same time, maintenance and inspection work is performed near the ground, so that the burden on the operator is reduced.

Next, in each of the above embodiments, the driving device 2
Has been described in the upper part of the hoistway or in the vicinity of the first floor so as not to obstruct the elevating movement of the car 4 so as to suppress the height of the hoistway 3. Even if it is installed, similarly, the height in the hoistway 3 can be effectively used, and the height of the hoistway or the height of the building can be suppressed.

A seventh embodiment in which the driving device 2 is mounted in the pit 3c of the hoistway 3 will be described with reference to FIG.

FIG. 13 shows traction sheave 1
And a driving device composed of a driving mechanism 2 in a pit 3 of a hoistway 3
c, one end of a suspension rope 7 wound around the traction sheave 1 is below the car 4 via a sheave 8j attached near the ceiling in the hoistway 3. And the other end is connected and fixed to the counterweight 6 via a sheave 8k similarly mounted near the ceiling in the hoistway 3.

Therefore, when the car 4 is moved up and down, the car 4 can be effectively used up to the vicinity of the ceiling of the hoistway 3 and 1: 1 roping is configured to realize high speed.

In this embodiment, one drive mechanism 2 is used. However, for example, like the apparatus shown in FIGS. 9 to 11, a set of drive devices 2 is installed in the pit 3c, Large capacity can be realized.

[0082]

As described above, in the elevator apparatus according to the first aspect of the present invention, the same speed as the hanging rope and the elevator car is realized by 1: 1 roping, and the hanging rope is positioned below the ceiling of the elevator car. Since it is connected and fixed to the car, the vicinity of the ceiling in the hoistway can be effectively used, and space saving and high speed can be realized at the same time.

In each of the second to fourth aspects of the present invention, since a plurality of drive mechanisms are provided in the first aspect of the present invention, both high speed and large capacity can be realized. According to the fifth aspect of the present invention, the guide rail is formed to have an H-shaped cross section, so that greater rigidity can be obtained and stable traveling can be performed.

According to the sixth aspect of the present invention, since the car is supported by the L-shaped beam in the fifth aspect, the car can be firmly supported in addition to the stable running.

According to a seventh aspect of the present invention, in each of the first to sixth aspects of the present invention, since the suspension ropes are configured to have two systems, the posture of the car can be further stabilized.

According to the eighth aspect of the present invention, since the driving device is installed in the vicinity of the ground floor of the hoistway in the seventh aspect of the invention, maintenance and inspection can be performed easily and the burden on the operator can be reduced.

In each of the ninth and tenth aspects of the present invention, since the pair of driving devices are connected to the counterweight, the capacity can be increased.

According to an eleventh aspect of the present invention, in each of the above aspects, the load on the guide rail can be reduced by mounting the drive mechanism on the hoistway side.

Further, according to the twelfth aspect of the present invention, since the driving device is installed in the pit of the hoistway, it is possible to effectively use the upper part of the hoistway, and at the same time, to realize a high speed and a large capacity.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a first embodiment of an elevator apparatus according to the present invention.

FIG. 2 is a plan view of the device shown in FIG.

FIG. 3 is a perspective view of a main part showing a second embodiment of the present invention.

FIG. 4 is a perspective view of a main part in which another driving device is adopted in the device shown in FIG. 3;

FIG. 5 is a perspective view of a main part showing a third embodiment of the present invention.

6 is a plan view of the device shown in FIG.

FIG. 7 is a perspective view of a main part showing a fourth embodiment of the present invention.

FIG. 8 is a plan view of the device shown in FIG. 7;

FIG. 9 is a perspective view of a main part showing a fifth embodiment of the present invention.

FIG. 10 is a plan view of the device shown in FIG. 9;

FIG. 11 is a perspective view of a main part showing a sixth embodiment of the present invention.

FIG. 12 is a plan view of the device shown in FIG. 11;

FIG. 13 is a perspective view of a main part showing a seventh embodiment of the present invention.

FIG. 14 is a perspective view of a main part showing a conventional elevator apparatus.

FIG. 15 is a perspective view of a main part showing another conventional elevator apparatus.

[Explanation of symbols]

 Reference Signs List 1 traction sheave 2 drive mechanism 3 hoistway 3a hoistway wall 3c pitch 4 car 4a floor 4b hitch part 4c car ceiling 5a, 5b sheave 6 counterweight 7 suspension rope 8a-8k, sheave 9a, 9b car guide rail 10a, 10b Guide rail for counterweight 11 L-shaped car frame 11a Vertical beam 11b Horizontal beam

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadashi Munakata 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant (72) Inventor Yasuyuki Agatsuma 1-Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba ( 72) Inventor Hisao Yamamoto 1-1-1 Shibaura, Minato-ku, Tokyo Inside Toshiba Corporation Head Office

Claims (12)

[Claims] 1. A car that moves up and down along a pair of guide rails provided in a hoistway, one end of which is fixed to the car, and the other end of which is fixed to a counterweight that moves up and down along another guide rail. In an elevator apparatus including a suspension rope and a driving device having a traction sheave wound around the suspension rope, the elevator apparatus is provided between the inner wall of the hoistway and a space defined by a vertical projection surface of a car, and has a thin structure. An elevator apparatus comprising: a driving device; and a car having one end of the hanging rope coupled at a position below a car ceiling. 2. The driving device comprises a plurality of driving mechanisms each having a traction sheave, wherein the suspension rope is wound around each of the traction sheaves and connected to a car and a counterweight. The elevator apparatus according to claim 1, wherein 3. The elevator according to claim 2, wherein the plurality of drive mechanisms are vertically arranged, and the traction sheave connected to the upper drive mechanism has the suspension rope wound thereon a plurality of times. apparatus. 4. The elevator apparatus according to claim 2, wherein the plurality of drive mechanisms are arranged in the left-right direction, and the traction sheave surfaces connected to the left and right drive mechanisms are arranged so as to substantially coincide with each other. 5. A guide rail provided on the drive mechanism side of the pair of guide rails has an H-shaped cross section, and a pair of parallel side surfaces thereof is arranged to face the car side surface. 5. The car according to claim 1, wherein two sets of rollers provided on the car are configured to guide the car across one of the left and right sides of the parallel side portion. The elevator apparatus according to claim 1 or 2. 6. The two sets of rollers are attached to a vertical frame of an L-shaped beam that supports and supports the car, and a tip of a horizontal frame of the L-shaped beam is attached to the pair of rollers. 6. The elevator apparatus according to claim 5, wherein another roller for guiding the car with the guide rail interposed between the guide rails installed on the side opposite to the drive mechanism is attached. 7. The suspension rope according to claim 1, wherein one end of each of the hanging ropes is fixed to a position substantially symmetrical to each other on the opposing outer surfaces of the car, and the suspension ropes are configured as two systems. Item 7. The elevator apparatus according to any one of Items 6. 8. The elevator apparatus according to claim 7, wherein the driving device is installed near a ground floor in the hoistway. 9. The other guide rails are respectively provided along inner wall surfaces facing each other in the hoistway, and each of the other guide rails is suspended by a pair of counterweights which are guided by these other guide rails and move up and down. 2. The elevator apparatus according to claim 1, wherein one end of the rope is fixed, and the other end is fixed to the car via a pair of corresponding driving devices. 10. The suspension rope has one end fixed to outer surfaces of the car facing each other, and the other end connected to a traction sheave of the driving device provided corresponding to each of the outer surfaces. The elevator apparatus according to claim 1, wherein the elevator apparatus is fixed to one of the counterweights attached along a hoistway inner wall behind the car. 11. The elevator apparatus according to claim 1, wherein the drive mechanism is attached to an inner side wall or a ceiling wall of the hoistway. 12. A car ascending and descending along a pair of guide rails provided in a hoistway, one end of which is fixed to the car and the other end of which is fixed to a counterweight which ascends and descends along another guide rail. An elevator apparatus comprising a suspension rope and a drive having a traction sheave wound around the suspension rope, wherein the drive is installed in a pit of a hoistway, and the suspension rope is wound around a traction sheave of the drive. The elevator apparatus is characterized in that both ends of the elevator are connected and fixed to a position below the car ceiling and to a counterweight via warp sheaves respectively provided above the hoistway.