CN1167601C - Elevator device - Google Patents

Abstract

The present invention relates to an elevator device which has a car 2 arranged vertically and movably in an elevating road, a balance weight 3 arranged vertically and movably in the elevating road, a main cable 12 for suspending the car 2 and balance weight 3 and a winch 18, to which the main cable 12 is wound, for elevating the car 2 and balance weight 3 through this main cable 12. The winch 18 is arranged to the top part of the elevating road 1 so as to incline against the horizontal direction. This invention can obtain an elevator device by which a winch is built in an elevating road and which can install on the elevating road with a height responding to the floor height of the top floor in a building.

Description

Elevator device

technical field

The present invention relates to an elevator apparatus in which a hoist for driving a main cable connecting a car and a counterweight is installed in a hoistway.

Background technique

Fig. 35 and Fig. 36 show the existing elevator device disclosed in Japanese Patent Laying-Open No. 139321, 1998, Fig. 35 is a schematic perspective view, and Fig. 36 is a cross-sectional plan view of the main part of Fig. 35 . In the figure, 1 is the hoistway, 2 is the lift car along the specified path of the hoistway 1, 3 is the balance counterweight arranged on one side of the horizontal plane in the hoistway 1, and 4 is a winch, which is arranged on the upper part of the hoistway 1 The supporting member 5 is disposed under the ceiling, and a driving sheave 6 pivotally mounted on a vertical axis is provided.

7 is the car first pulley located on one side of the bottom of the car 2, 8 is the second pulley of the car located on the other side of the bottom of the car 2, and 9 is the balance counterweight pulley located on the top of the counterweight 3, 10 is a car-side deflection pulley pivotally mounted on the upper part of the hoistway 1 through a horizontal axis and arranged at a position corresponding to the second pulley 8 of the car, and 11 is pivotally mounted on the upper part of the hoistway 1 through a horizontal axis and arranged on The counterweight side steering pulley at the corresponding position of the counterweight pulley 9 . In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 partially overlap the car 2 in vertical projection.

12 is the main cable, which is connected to the upper part of the hoistway 1 by means of the first rope stopper 13 arranged on the ceiling of the hoistway 1 corresponding to the first pulley 7 of the car, and descends, and hangs on the first sheave of the car 7 and the second pulley 8 of the car and rise, then hang on the car side pulley 10 to the horizontal direction, hang on the driving sheave 6 and hang on the balance counterweight side pulley 11, and then make it It descends and hangs on the counterweight pulley 9 and then ascends, and the other end is connected to the upper part of the hoistway 1 by means of the second rope stopper 14 arranged on the ceiling of the hoistway 1 corresponding to the counterweight pulley 9 .

Existing elevator device is constituted as above, hoisting machine 4 is stressed, drives sheave 6 to produce rotation, and car 2 and counterweight 3 are lifted and lowered mutually in opposite directions by main cable 12. In addition, the hoist 4 is arranged in the upper part of the hoistway 1, and a separate machine room is omitted, thereby saving the space for the elevator device of the building.

In the above-mentioned conventional elevator apparatus, as shown in FIG. 36 , the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are arranged on the upper part of the hoistway 1 so as to overlap the car 2 in plan view. Therefore, there is a problem that when the car 2 reaches the uppermost floor, a space as large as the deflection pulleys 10 and 11 is required between the car 2 and the hoistway ceiling.

In addition, the winding angle θ of the main rope 12 wound around the drive sheave 6 depends on the positional relationship between the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 . This winding angle θ affects the traction capacity of the drive sheave 6, and it has the following relationship:

Traction capacity = e ^kθ .

Therefore, to increase the winding angle θ to ensure the traction capacity, it is necessary to make the position of the steering pulley 10 on the car side and the steering pulley 11 on the counterweight side as close as possible, so that the degree of freedom for each device to be arranged in the hoistway is reduced. In addition, when giving priority to the degree of freedom in the arrangement of each device in the hoistway, it is not always possible to bring the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 close to each other, so sufficient traction capacity cannot be ensured.

Contents of the invention

In order to solve this disadvantage, an object of the present invention is to provide an elevator apparatus in which the hoist is placed inside the hoistway and can be installed in the hoistway at a height corresponding to the height of the uppermost floor of the building.

Another object of the present invention is to provide an elevator apparatus that ensures traction capability by increasing the winding angle θ.

Still another object is to provide an elevator apparatus capable of reducing the Friet angle and prolonging the life of main cables and the like. Here, the Frett angle is a numerical value indicating how much the sheave groove (si-p groove) of the drive sheave through which the main cable passes is offset from the sheave groove of the counterweight side diverting pulley, and the details will be described later.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; A cable, and a hoist for raising and lowering the car and the counterweight through the main cable, wherein the hoist is arranged obliquely relative to the horizontal direction in the hoistway.

The balance counterweight is disposed in a gap between the hoistway wall and the car, and the hoist is disposed above the gap in which the balance counterweight is disposed.

A part of the hoist overlaps the car in a vertical projection, and the other part is located between the car and the hoistway wall, and the part is closer to the ceiling of the hoistway than the other part .

In addition, the hoist has a drive sheave around which the main cable is wound, and the drive sheave is arranged facing the ceiling of the hoistway.

In addition, there are: a first diverting pulley on which a portion of the main cable from the car to the hoist is wound; a portion of the main cable from the hoist to the balance weight is wound around The vertical projections of the part from the first diverting pulley to the hoist and the part from the hoist to the second diverting pulley intersect each other.

The first diverting pulley and the second diverting pulley are disposed between the car and the hoistway wall in a vertical projection.

It also has: a first diverting pulley for hanging the part of the main cable from the car to the hoist; a second deflection pulley; and a deflector provided in the hoistway to change the direction from the first deflection pulley to the main cable of the hoist or from the second deflection pulley to the main cable of the hoist wheel.

Moreover, the rotation surface of the said 1st deflection pulley or the said 2nd deflection pulley is provided in parallel with the wall of the said hoistway.

The rotating surface of the deflector wheel is arranged horizontally on the top of the liftway.

The first deflection pulley, the second deflection pulley, and the hoist are installed on a common installation platform.

The installation platform is arranged on the top of the liftway.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; A hoist for raising and lowering the car and the counterweight through the main cable, and further comprising a first section that is wound around the main cable from the car to the hoist. The deflection pulley and the second deflection pulley of the portion from the hoist to the counterweight around which the main cable is wound rotate at least one of the first deflection pulley and the second deflection pulley. The surface is substantially vertically arranged, and the hoist is arranged in the hoistway obliquely relative to the horizontal direction.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; A hoist for raising and lowering the car and the counterweight through the main cable, and further comprising a first section that is wound around the main cable from the car to the hoist. The deflection pulley and the second deflection pulley of the portion from the hoist to the counterweight around which the main cable is wound, the hoist is arranged substantially horizontally in the hoistway, and the first deflection pulley and the first deflection pulley At least one of the second deflection pulleys is arranged in the hoistway with a rotation surface inclined relative to the vertical direction.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; cable, a winch that lifts and lowers the car and the counterweight through the main cable, the winch has a driving sheave around the main cable, and is characterized in that it also has a drive sheave around the main cable , the first diverting pulley of the part from the car to the hoist and the second diverting pulley of the part from the hoist to the counterweight around which the main cable is wound, are approximately The hoist is arranged horizontally or inclined relative to the horizontal direction, and the hoist, the first deflection pulley, and the second deflection pulley are arranged on a common installation platform provided in the hoistway, and the drive sheave Arranged on the upper side of the hoist.

In addition, the driving sheave is located on the upper and lower surfaces of the installation platform, on the side opposite to the side where the car or the counterweight is arranged, and the main cable is positioned between the first diverting pulley and the first deflection pulley. The winding on at least one of the second deflection pulleys is located on the opposite side.

In addition, both ends of the main cable are fixed on the mounting table.

Description of drawings

Fig. 1 is a schematic front view showing Embodiment 1 of the present invention;

Fig. 2 is a side view of Fig. 1;

Fig. 3 is a cross-sectional top view of the main part of Fig. 1;

Fig. 4 is a perspective view corresponding to Fig. 3;

Fig. 5 is a schematic front view showing Embodiment 2 of the present invention;

Fig. 6 is a side view of Fig. 5;

Fig. 7 is a cross-sectional top view of the main part of Fig. 5;

Fig. 8 is a perspective view corresponding to Fig. 5;

Fig. 9 is a schematic front view showing Embodiment 3 of the present invention;

Fig. 10 is a cross-sectional top view of the main part of Fig. 9;

Figure 11 is a perspective view corresponding to Figure 10;

Fig. 12 is a schematic front view showing Embodiment 4 of the present invention;

Fig. 13 is a cross-sectional top view of the main part of Fig. 12;

Figure 14 is a perspective view corresponding to Figure 13;

Fig. 15 is a schematic front view showing Embodiment 5 of the present invention;

Fig. 16 is a cross-sectional top view of the main part of Fig. 15;

Figure 17 is a perspective view corresponding to Figure 16;

Fig. 18 is a schematic front view showing Embodiment 6 of the present invention;

Fig. 19 is a cross-sectional top view of the main part of Fig. 18;

Fig. 20 is a diagram showing the relationship between the tension of the main cable and the axial force;

Fig. 21 is a schematic front view showing Embodiment 7 of the present invention;

Fig. 22 is a cross-sectional top view of the main part of Fig. 21;

Fig. 23 is a front view showing Embodiment 8 of the present invention;

Fig. 24 is a cross-sectional top view of the main part of Fig. 23;

Fig. 25 is a diagram showing the positional relationship between the driving sheave 6 and the counterweight side diverting pulley 11 in the existing elevator device;

Fig. 26 is a diagram showing the force acting on the sides of the main cable 12 and the sheave groove;

Fig. 27 is a diagram showing the positional relationship between the driving sheave 6 and the counterweight side diverting pulley 11 in this embodiment;

Fig. 28 is a relationship diagram between the inclination angle α of the winch 18 and the moving distance a2 of the main cable 12;

Fig. 29 is a front view showing Embodiment 9 of the present invention;

Figure 30 is a cross-sectional top view of the main part of Figure 29;

Fig. 31 is a cross-sectional plan view showing main parts of Embodiment 10 of the present invention;

Fig. 32 is a diagram showing the force in the horizontal direction when the winch 18 and the deflection pulleys 10, 11 are installed on the integrated mounting platform 25;

Fig. 33 is a diagram showing the force in the vertical direction when the winch 18 and the diverting pulleys 10, 11 are installed on the integrated mounting platform 25;

34 is a diagram showing the installation space in the height direction of the mounting table 25, the hoisting machine 18, and the diverting pulleys 10, 11 when the driving sheave 6 is set on the lower side of the hoisting machine 18;

Fig. 35 is a schematic perspective view showing a conventional elevator device;

Fig. 36 is a cross-sectional top view of the main part of Fig. 35 .

Detailed ways

Embodiment 1

1 to 4 are diagrams showing an example of Embodiment 1 of the present invention, FIG. 1 is a schematic front view, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a cross-sectional top view (vertical projection view) of the main part of FIG. , FIG. 4 is a perspective view corresponding to FIG. 3 . In the figure, 1 is the hoistway, and 2 is the lift car along the prescribed path of the hoistway 1. An entrance 15 and an upper beam 16 are provided. The ceiling descends from the upper beam 16 to form a retreat surface 17.

3 is a balance counterweight arranged on one side of the horizontal plane in the hoistway 1, and 18 is a hoist, which is arranged at a corresponding position above the side of the car 2 leaving the entrance and exit 15, that is, on the side corresponding to the withdrawal surface 17 of the car 2. Position, and installed in the position below the ceiling of hoistway 1, is provided with the driving sheave 6 that pivots through vertical axis. The driving sheave 6 is located on the ceiling side of the hoistway 1 of the hoisting machine 18 and is opposite to the ceiling of the hoistway 1 . The diameter of the drive sheave 6 in this embodiment is smaller than the outer shape of the hoist 8 . According to this arrangement, the space formed by the ceiling and side walls of the hoistway 1 can be effectively used.

In addition, the hoisting machine 18 is inclined with respect to the horizontal direction (disposed in an oblique shape when viewed from the side). That is, the hoist 18 is inclined so that a part thereof overlaps the car 2 in a vertical projection, the other part is located between the car 2 and the wall of the hoistway 1, and the part overlapping the car 2 is closer to the ceiling of the hoistway 1 than the other part. . In addition, the hoist 18 is installed so as to be located on the side wall side of the hoistway 1 as much as possible.

7 is the car first pulley located on one side of the car 2 bottom, and 8 is the second car pulley located on the other side of the car 2 bottom.

9 is the balance counterweight pulley located on the top of the balance counterweight 3, and 10 is the car side steering pulley, which is arranged in the gap between the inner wall of the hoistway 1 and the car 2 in the vertical projection, and is pivoted through the horizontal axis On the top of the hoistway 1 and arranged at the position corresponding to the second pulley 8 of the car.

11 is the balance counterweight side steering pulley, which is arranged in the gap between the inner wall of the hoistway 1 and the car 2 in the vertical projection, pivotally mounted on the upper part of the hoistway 1 through the horizontal axis and arranged on the balance counterweight pulley 9 at the corresponding position. The car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are arranged in the gap between the inner wall of the hoistway 1 and the car 2 in the same manner as the car-side diverting pulley 10 is arranged. This configuration is beneficial to reduce the cross-sectional area of the hoistway 1 .

In this embodiment, in the space between the car 2 and the side wall of the hoistway 1, especially in the upper part of the space where the balance weight 3 is arranged, the hoist 18 and the deflection pulleys 10, 11 are arranged, and the installation is effectively utilized. Clearance required for counterweight 3. In addition, as can be understood from FIG. 3 , the hoist 18 is arranged near the corner of the hoistway 1 to minimize interference with the car 2 .

In addition, the rotating surfaces of the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are arranged obliquely with respect to the side surface of the car 2 and the wall surface of the hoistway 1 so as to intersect each other.

19 is a buffer that is located on the bottom surface of the hoistway 1 and is arranged corresponding to the car 2 and the counterweight 3 respectively.

12 is the main cable, one end of which is connected to the upper part of the hoistway 1 by means of the first rope stopper 13 arranged on the upper part of the hoistway 1 corresponding to the first pulley 7 of the car and then descends, and is hung around the first pulley 7 of the car And on the second pulley 8 of the car and rise, then hang on the side pulley 10 of the car to hang in the horizontal direction, hang on the driving sheave 6 and hang on the balance weight side pulley 11, and then make it fall After being hung on the balance weight pulley 9, it goes up, and the other end is connected to the upper part of the liftway 1 by means of the second rope stopper 14 corresponding to the balance weight pulley 9 and arranged on the upper part of the liftway 1 .

In the main cable 12, the portion from the car side diverting pulley 10 to the driving sheave 6 and the portion from the driving sheave 6 to the counterweight side diverting pulley 11 cross each other in a horizontal projection. However, the hoisting machine 18 is arranged obliquely, and the position where the main cable 12 hangs on the driving sheave 6 is shifted in the longitudinal direction due to the start and end of winding, so the part from the car side diverting pulley 10 to the driving sheave 6 Can not mutually interfere with the part from driving sheave 6 to balance counterweight side deflection pulley 11. As a result, the winding angle θ of the main rope 12 wound around the drive sheave 6 becomes large, thereby increasing the pulling capacity.

Although the deflection pulley 10 on the car side is provided at a lower position than the deflection pulley 11 on the counterweight side, this is because the position where the main rope 12 is wound on the drive sheave 6 is different in the longitudinal direction due to winding start and winding end. due to offset.

In the elevator apparatus constructed as above, the hoisting machine 18 receives force to drive the sheave 6 to rotate, and the car 2 and the counterweight 3 are raised and lowered in opposite directions through the main rope 12 . In addition, the hoist 18 is arranged in the upper part of the hoistway 1, and a separate machine room is omitted, thereby saving space for the elevator device of the building.

In addition, the hoist 18 is attached to the upper end portion of the hoistway 1, and is arranged at a position above the lower end of the hoist 18 than the lower ends of the deflection pulleys 10, 11. As shown in FIG. In addition, the hoist 18 is provided at a position corresponding to the upper side of the car 2 away from the doorway 15, that is, at a position corresponding to the withdrawal surface 17 of the car 2 . In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are arranged in a gap between the edge of the car 2 and the inner wall of the hoistway 1 .

Furthermore, the drive sheave 6 is provided on the upper side of the hoisting machine 18, and the main cable 12 is hung on the drive sheave 6 in the horizontal direction. Therefore, the hoist 18 can be installed on the hoistway 1 formed at a height corresponding to the height of the uppermost floor (not shown) of the building, and the main cable 12 can be stretched.

Since the underside of the ceiling of the hoistway 1 can be made close to the car 2, it is not necessary to set the underside of the ceiling of the hoistway 1 higher than the floor height of the uppermost floor of the building, which can save the construction cost required for the installation space of the elevator device. In addition, since this function can be performed and the height of the building can be lowered, it is possible to eliminate the undesirable situation of infringing the sunlight right of adjacent buildings.

In addition, since the part of the main cable 12 from the car side diverting pulley 10 to the driving sheave 6 and the part from the driving sheave 6 to the counterweight side diverting pulley 11 do not interfere with each other, they cross each other on the horizontal projection. shape, so the winding angle θ of the main cable 12 that is wound on the driving sheave 6 can be increased, thereby increasing the traction capacity.

This increase in traction capability brings the following effects.

In the elevator device, if the weight of the car is set as W1, the weight of the capacity is set as W2, and the counterweight is set as W3, then the counterweight W3 is designed as W1+W2×1/2=W3. The traction capacity of the driving sheave 6 needs to be adjusted according to the increase or decrease of the value of W3/W1. However, in recent years, for the purpose of cost reduction, the weight of the car room has been continuously reduced (W1 has decreased). In this case, W3/W1 becomes Larger, you need to increase the traction capacity. Therefore, by increasing the traction capacity, it is possible to further reduce the weight of the car compartment and reduce the cost.

In addition, the traction capacity is represented by e ^kθ (k: a constant determined by the groove shape of the driving sheave, θ: winding angle). If the same traction capacity is to be obtained, if the winding angle θ can be set to N times, then the slot constant k is 1/N times.

Assuming that the hardness of the driving sheave 6 is H, the wear depth of the driving sheave is proportional to m/H. Here, m is a constant determined by the shape of the groove of the drive sheave, and it increases or decreases as the groove coefficient k increases or decreases. In the case of wanting to obtain the same traction capacity, if the winding angle θ is larger, the slot coefficient k is smaller, and m is also smaller. Therefore, even if a material having a low hardness H of the driving sheave is used, the increase in the depth of wear can be suppressed, and the life of the driving sheave can be ensured. For this reason, inexpensive materials with lower hardness can be selected.

In addition, as shown in the present embodiment, by crossing the main cables 12, the tension of the main cables 12 can be eliminated. FIG. 20 shows the axial force in the case where the winding of the main rope around the drive sheave 6 starts and the winding ends are crossed and not crossed. As shown in Figure 20, if the tension of the main cable 12 is set to P, the axial force needs to be 2P when it is not crossed, but by crossing it, the axial force is less than 2P and becomes 2P1, which can reduce the force on the drive. The load on the shaft of the sheave 6. Thus, the shaft of the drive sheave 6 can be designed to be thinner, or its strength can be designed to be lower.

Implementation form 2

5 to 8 are diagrams showing an example of Embodiment 2 of the present invention. FIG. 5 is a front view schematically showing the structure of the elevator apparatus of this embodiment. FIG. 6 is a side view of FIG. 5, and FIG. 7 is a main part of FIG. Cross-sectional plan view (vertical projection view), Fig. 8 is a perspective view corresponding to Fig. 7 . In the drawings, the same symbols as those in the above-mentioned FIGS. 1 to 4 denote the same parts.

20 is a hoist, which is arranged at a position corresponding to the side above the side of the car 2 away from the entrance and exit 15, that is, at a position corresponding to the retreat surface 17 of the car 2 and installed under the ceiling of the hoistway 1. In addition, the hoist 20 is provided with a drive sheave 6 pivotally mounted on a vertical axis, and a drive motor 21 protrudes downward from below. The driving sheave 6 is positioned at the ceiling side of the hoistway 1 in the hoisting machine 20 , and the drive motor 21 is positioned at the opposite side of the ceiling of the hoistway 1 in the hoisting machine 20 . The diameter of the driving sheave 6 is smaller than the profile of the winch 20 . In addition, the drive motor 21 is arranged in a gap between the edge of the car 2 and the inner wall of the hoistway 1 .

In this embodiment, in the space formed by the side walls of the car 2 and the hoistway 1, the hoisting machine 20 and the deflection pulleys 10, 11 are arranged especially on the upper part of the space where the balance weight 3 is arranged, and the space is effectively utilized. Set the space required for the balance weight 3. In addition, the hoist 20 can be understood from the cross-sectional plan view 7 , and is arranged near the corner of the hoistway 1 to minimize interference with the car 2 .

The hoist 20 is arranged obliquely relative to the horizontal direction (obliquely arranged when viewed from the side), so that the part where the drive motor 21 is installed is set low and the part where the drive motor 21 is not installed is set high. In addition, the car side diverting pulley 10 The rotational planes of the counterweight side diverting pulley 11 and the balance weight side are obliquely arranged in cross-sectional plan view 7 so as to intersect each other.

The car side diverting pulley 10 is arranged at a position lower than the counterweight side diverting pulley 11 . In addition, the position where the main rope 12 is wound around the drive sheave 6 deviates in the longitudinal direction due to winding start and winding end. Therefore, in the main cable 12, the part from the car side diverting pulley 10 to the driving sheave 6 and the part from the driving sheave 6 to the counterweight side diverting pulley 11 do not interfere with each other, and the vertical projection intersects. Thus, the pulling capacity can be increased by increasing the winding angle θ at which the main cable 12 is wound around the drive sheave 6 .

In the elevator apparatus configured as above, the hoist 20 is attached to the upper end of the hoistway 1 , and the lower end of the hoist 20 is arranged above the lower ends of the diverting pulleys 10 , 11 . In addition, although the drive motor 21 protrudes downward from the bottom, it is arranged in a gap between the edge of the car 2 and the inner wall of the hoistway 1 . In addition, the hoist 20 is provided at a position corresponding to the upper side of the car 2 away from the entrance 15 , that is, at a position corresponding to the retreat surface 17 of the car 2 .

In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are arranged in a gap between the edge of the car 2 and the inner wall of the hoistway 1 . Therefore, although detailed description is omitted, in the embodiment shown in FIGS. 5 to 8 , the same effects as those in the embodiment shown in FIGS. 1 to 4 can be obtained.

Implementation form 3

9 to 11 are diagrams showing an example of Embodiment 3 of the present invention, FIG. 9 is a schematic front view, FIG. 10 is a cross-sectional top view (vertical projection view) of the main part of FIG. 10 perspective view.

In the figure, the same symbols as those in the above-mentioned FIGS. 1 to 4 represent the same parts. 22 is the main cable, one end of which is connected to the lower part of the opposite side of the entrance and exit 15 of the car 2 and rises, and is hung on the car side diverting pulley 10. Hang in the horizontal direction and hang around on the driving sheave 6 and then hang on the balance counterweight side steering pulley 11 to connect with the top of the balance counterweight 3 after it descends.

In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are disposed in a gap between the edge of the car 2 and the inner wall of the hoistway 1 .

In the elevator apparatus constructed as described above, the hoist 18 is attached to the upper end of the hoistway 1, and its lower end is disposed above the lower ends of the diverting pulleys 10, 11. In addition, the hoist 18 is provided at a position corresponding to the upper side of the car 2 away from the doorway 15 , that is, at a position corresponding to the withdrawal surface 17 of the car 2 . The drive sheave 6 is located on the ceiling side of the hoistway 1 in the hoisting machine 18 . The diameter of the drive sheave 6 in this embodiment is smaller than the outer shape of the hoist 18 . According to this arrangement, the space formed by the ceiling and side walls of the hoistway 1 can be effectively used.

In addition, the hoist 18 is inclined with respect to the horizontal direction (disposed to be inclined when viewed from the side), and is installed so as to be located on the side wall side of the hoistway 1 as much as possible. In this embodiment, in the space formed by the side walls of the car 2 and the hoistway 1, especially on the upper part of the space where the balance weight 3 is arranged, the hoist 18 and the deflection pulleys 10, 11 can be effectively utilized. Space required for counterweight 3. In addition, as can be understood from FIG. 10 , the hoist 18 is arranged near the corner of the hoistway 1 to minimize interference with the car 2 .

Therefore, although detailed description is omitted, in the embodiment shown in FIGS. 9 to 11 , the same effects as those in the embodiment shown in FIGS. 1 to 4 can be obtained.

Embodiment 4

12 to 14 are diagrams showing an example of Embodiment 4 of the present invention. FIG. 12 is a schematic front view, FIG. 13 is a cross-sectional top view (vertical projection view) of the main part of FIG. 13 perspective view. In the drawings, the same symbols as those in the above-mentioned FIGS. 1 to 4 denote the same parts, and description thereof will be omitted.

23 is a deflector wheel, which is arranged at the position below the ceiling of the hoistway 1 according to the vertical axis, and hangs the main cable 12 between the driving sheave 6 and the car side diverting pulley 10 along the direction of the inner wall surface of the hoistway 1 . That is, the deflector pulley 23 changes the direction of the main cable 12 from the car side diverting pulley 10 to the hoist 18 . Such a structure is effective because it can increase the degree of freedom in the arrangement of the diverting pulleys in the hoistway.

In this embodiment, the rotating surface of the deflector wheel 23 is arranged horizontally. In addition, the deflector wheel 23 is arranged in a position not overlapping with the car 2 in the cross-sectional plan view 13, especially in the space between the side surface of the car 2 and the inner wall surface of the hoistway 1, where the counterweight is arranged. 3 the upper part of the space.

In the elevator apparatus constructed as described above, the hoist 18 is attached to the upper end of the hoistway 1, and its lower end is disposed above the lower ends of the diverting pulleys 10, 11. In addition, the hoist 18 is provided at a position corresponding to the upper side of the car 2 away from the doorway 15 , that is, at a position corresponding to the withdrawal surface 17 of the car 2 . In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are disposed in a gap between the edge of the car 2 and the inner wall of the hoistway 1 .

Therefore, although detailed description is omitted, in the embodiment shown in FIGS. 12 to 14 , the same effects as those in the embodiment shown in FIGS. 1 to 4 can be obtained.

12 to 14, since the main cable 12 between the driving sheave 6 and the car side diverting pulley 10 is stretched along the direction of the inner wall surface of the hoistway 1 by using the deflector pulley 23, The side surfaces of the car-side diverting pulley 10 may be arranged parallel to the inner wall surface of the hoistway 1 . Therefore, the width of the gap between the edge of the car 2 and the inner wall of the hoistway 1 can be reduced, and the space for the elevator device of the building can be further saved. In addition, there is an advantage that the winding angle θ of the main cable 12 to the drive sheave 6 can be increased.

In addition, since the deflector wheel 23 does not overlap the car 2 in the vertical projection, but is disposed in the gap between the car 2 and the hoistway 1, interference between the car 2 and the deflector wheel 23 can be prevented, and, No space required to prevent interference is required.

Embodiment 5

15 to 17 are diagrams showing an example of Embodiment 5 of the present invention, FIG. 15 is a schematic front view, FIG. 16 is a cross-sectional top view (vertical projection view) of the main part of FIG. 16 perspective view. In the drawings, the same reference numerals as those in FIGS. 12 to 14 described above denote the same parts, and description thereof will be omitted. 24 is a balance weight, which is provided in the gap between the outer edge portion connected to the entrance and exit 15 of the car 2 and the inner wall surface of the hoistway 1 . That is, the balance weight 24 is arranged in the space between the side surface of the car 2 adjacent to the surface forming the doorway 15 and the inner wall surface of the hoistway 1 .

23 is a deflector wheel, which is arranged at the position below the ceiling of the hoistway 1 according to the vertical axis, and hangs the main cable between the driving sheave 6 and the car side diverting pulley 10 along the direction of the inner wall surface of the hoistway 1. 12. That is, the deflector pulley 23 changes the direction of the main cable 12 from the car side diverting pulley 10 to the hoist 18 . In the present embodiment, the deflector wheel 23 has its rotating surface arranged horizontally.

In the elevator apparatus constructed as described above, the hoist 18 is attached to the upper end of the hoistway 1, and its lower end is disposed above the lower ends of the diverting pulleys 10, 11. In addition, the hoist 18 is provided at a position corresponding to the upper side of the car 2 away from the doorway 15 , that is, at a position corresponding to the withdrawal surface 17 of the car 2 . In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are disposed in a gap between the edge of the car 2 and the inner wall of the hoistway 1 .

Owing to utilizing the deflector wheel 23 to hang the main cable 12 between the driving sheave 6 and the car side diverting pulley 10 along the direction of the inner wall surface of the hoistway 1, so the side of the car side diverting pulley 10 can be configured as The inner wall surfaces of the liftway 1 are parallel.

Therefore, although detailed description is omitted, in the embodiment shown in FIGS. 15 to 17 , the same effects as those in the embodiment shown in FIGS. 12 to 14 can be obtained.

Embodiment 6

In this embodiment, the structure of the mounting table for fixing the hoist, deflector pulleys 10, 11, and deflector pulley 23 in the hoistway 1 will be described in particular.

Fig. 18 is a side view of a state where a hoist, deflector pulleys 10, 11 and deflector wheels 23 are fixed, and Fig. 19 is a cross-sectional plan view (perpendicular projection).

25 is an installation platform, and this installation platform is, on the 2 guide rails that car 2 is used and the 2 guide rails that balance counterweight is used, set up beam, and this beam is fixed integrally. On this mounting table 25 , the hoist is arranged obliquely with respect to the horizontal direction, and the rotating shafts of the deflector pulleys 10 and 11 are mounted, and furthermore, the rotating shaft of the deflector pulley 23 is mounted. Since hoisting machines, diverting pulleys 10, 11 and deflector wheels 23 are fixed on the integral mounting platform 25, and their positional relationship is determined by the assembly of the mounting platform 25, the adjustment when the elevator is set becomes easy. In addition, the loads acting on the hoist, deflection pulleys 10, 11 and deflector wheels 23 are all supported by the four guide rails through the mounting table 25, so the strength of the hoistway 1 need not be considered.

In addition, in this embodiment, the installation table 25 is fixed on the two guide rails for the car 2 and the two guide rails for the counterweight, but as long as the wall of the elevatorway 1 has sufficient strength, it can also be installed on the elevatorway 1 on the inner wall.

In addition, in the previous embodiment, when the deflector wheel 23 is not provided, this mounting table 25 can also be used.

Implementation form 7

Fig. 21 and Fig. 22 show this embodiment, Fig. 21 is a side view, and Fig. 22 is a cross-sectional plan view (vertical projection view) of the main part.

In this embodiment, the hoisting machine is arranged obliquely relative to the horizontal direction at the position below the ceiling of the hoistway 1. This point is the same as the previous embodiment. The difference is that the part from the car side diverting pulley 10 to the drive sheave 6 The vertical projection of the portion from the drive sheave 6 to the counterweight side diverting pulley 11 does not intersect.

In the drawings, the same reference numerals as those in FIGS. 15 to 17 described above denote the same parts, and description thereof will be omitted. The hoist 18 in this embodiment also has a driving sheave 6 having a smaller diameter than the outer shape of the hoist 18 on the ceiling side. Therefore, the corner space formed by the ceiling of the hoistway 1 and the inner wall of the hoistway 1 can be effectively utilized.

In addition, in the present embodiment, in the main cable 12, the portion from the car side diverting pulley 10 to the driving sheave 6 and the portion from the driving sheave 6 to the counterweight side diverting pulley 11 do not intersect as shown in FIG. 22 . . However, by installing the hoist 18 inclined relative to the horizontal direction, the angle of deflection of the rope with the deflection pulley 11 and the deflector pulley 23 can be reduced compared with the conventional example.

In addition, the dimension B from the ceiling position of the car 2 when the car 2 is raised to the uppermost position to the ceiling of the hoistway 1 can be set smaller than the dimension A required when the hoist 18 is arranged horizontally.

Embodiment 8

Next, another embodiment in which a hoist is arranged obliquely with respect to the horizontal direction at the position below the ceiling of the hoistway 1 will be described.

23 and 24 show this embodiment, and FIG. 23 is a front view, and FIG. 24 is a cross-sectional plan view (perpendicular projection view) of main parts.

In the drawings, the same reference numerals as those in FIGS. 15 to 17 described above denote the same parts, and description thereof will be omitted.

The hoist 18 is arranged on the top of the hoistway 1 in a state inclined at an angle α with respect to the horizontal direction. In the vertical projection, a part of the hoist 18 overlaps the car 2, and the other part is located in the gap between the car 2 and the hoistway wall. In particular, it is provided in the gap between the car 2 on the side where the counterweight 24 is arranged and the hoistway wall. In addition, in order to incline the hoist 18, the portion of the hoist 18 overlapping the car 2 is closer to the hoistway ceiling than the portion located on the gap. In addition, the drive sheave 6 is provided on the ceiling side of the hoist 18, and the drive sheave 6 is also inclined at an angle α like the hoist 18. FIG. The size of the driving sheave 6 is that the diameter is smaller than the motor part of the winch.

In addition, in this embodiment, the deflector wheel is not provided. Therefore, the main cable 12 comes to the driving sheave 6 from the car side diverting pulley 10 without passing through the deflector pulley, and then comes to the counterweight side diverting pulley 11 from the driving sheave 6 .

The counterweight side diverting pulley 11 is arranged on the gap between the car 2 on one side of the counterweight 24 and the hoistway wall, and is positioned below the car side diverting pulley 10 (direction away from the hoistway ceiling). In addition, the rotation planes of the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are substantially vertical.

As in the present embodiment, disposing the hoist at a position under the ceiling of the hoistway 1 inclined relative to the horizontal direction is an effective measure for securing the life of the groove of the drive sheave 6 and the main cable 12 . This is detailed below.

Fig. 25 is a diagram showing the positional relationship between the drive sheave 6 and the counterweight side diverting pulley 11 in the conventional elevator apparatus shown in Fig. 34 . In Fig. 25, the rope grooves of the driving sheave 6 are horizontal, the rope grooves of the counterweight side diverting pulley 11 are arranged vertically, and the main cable 12 is hung between the two rope grooves. Fig. 25(b) is a view of Fig. 25(a) viewed from the direction of the arrow. In Fig. 25(b), a case where the main cable 12 is composed of three ropes is shown. The rope 12a is set at a position offset by a distance a1 when moving from the rope groove of the driving sheave 6 to the rope groove of the balance weight side diverting pulley 11.

In FIG. 25 , θ1 represents a Fret angle. In the case of Fig. 25, the Fraet angle θ1 can be calculated as follows:

θ1=Arctan(a1/L).

The Fraet angle θ1 is a numerical value indicating how much the rope groove of the driving sheave 6 passing through the main rope 12 deviates from the rope groove of the balance weight side diverting pulley 11 . When the numerical value was larger, the main cable 12 was pressed on the side of the rope groove strongly, and the wear force between the main cable 12 and the rope groove became larger. That is, as shown in FIG. 26 , when the tension of the main cable 12 is T and the coefficient of friction between the rope groove and the main cable 12 is μ under the situation of the Friet angle θ1, then the force acting on the side surface of the rope groove is The force of T×sinθ, as a result, produces the frictional force of μT×sinθ.

In addition, there is a problem that the lives of the main cables 12 and the rope grooves are shortened by this frictional force. Generally, in the case of an elevator, it is necessary to set the Fred angle θ1 to be 1.5° or less while ensuring the service life.

On the other hand, when the hoisting machine 18 is inclined at an angle α with respect to the horizontal direction as in the present embodiment, the positional relationship of FIG. 27 is obtained. FIG. 27( b ) is an enlarged view of the circle portion in FIG. 27( a ). In the case of FIG. 27 , the rope 12 a is set at a position shifted by a distance a2 when moving from the rope groove of the driving sheave 6 to the rope groove of the balance weight side diverting pulley 11 . Since the hoist 18 is inclined, the distance a2 has a relationship of a2<a1.

And, the Fraet angle θ2 is θ2=Arctan(a2/L).

Since the relationship between the Frett angles θ1 and θ2 is Frett angle θ2<Frett angle θ1, the life of one main cable 12 and the rope groove of the inclined hoist 18 can be extended.

The relationship between the inclination angle α of the hoist 18 and the decrease amount of a2 is shown in FIG. 28 . It can be understood from the graph that the distance of a2 decreases sharply at small values of the angle α, and becomes gentle as the angle α approaches 90°. From this graph, it can be seen that even if the hoist 18 is slightly tilted, the Fleet angle θ2 can be made smaller and a larger effect can be obtained.

As described above, by inclining the hoisting machine 18 relative to the horizontal direction, an effective effect can be obtained in securing the life of the rope groove of the drive sheave 6 and the life of the main cable 12 .

However, in terms of design, how much to set the inclination angle α depends on other factors such as the relationship with the space of the hoistway. For example, the more the angle α is inclined, the higher the hoistway top must be set. As a result, construction cost increases. Therefore, it is necessary to set the inclination angle α of the hoist in design within the range of securing the life of the rope groove of the driving sheave 6 and the main cable 12 without increasing the construction cost.

In addition, the effect of prolonging the service life of the rope groove of the drive sheave 6 and the main cable 12 as described above can also be obtained in the previous embodiment in which the hoist is arranged obliquely with respect to the horizontal direction.

In addition, the hoist 18 in this embodiment also has a drive sheave 6 having a diameter smaller than the outer shape of the hoist 18 on the ceiling side. Therefore, the corner space formed by the ceiling of the hoistway 1 and the inner wall of the hoistway 1 can be effectively utilized.

Embodiment 9

Fig. 29 and Fig. 30 show this embodiment, Fig. 29 is a front view, and Fig. 30 is a cross-sectional plan view (perpendicular projection view) of main parts.

In the drawings, the same reference numerals as those in FIGS. 15 to 17 described above denote the same parts, and description thereof will be omitted.

The winch 18 is horizontally arranged on the top of the hoistway. In addition, the rotating surfaces of the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are inclined at an angle α with respect to the vertical direction. Therefore, although the hoisting machine 18 is arranged horizontally, the movement amount a2 and the Friet angle θ2 of the main cable 12 when moving from the rope groove of the driving sheave 6 to the rope groove of the counterweight side diverting pulley 11 are the same as those in the embodiment. 8 with the same value. Therefore, compared with the prior art, the life of the main cable 12 and the rope groove can be extended.

In addition, a part of the hoist 18 overlaps the car 2 in the vertical projection view, and the other part is located in the gap between the car 2 and the hoistway wall.

In addition, in this embodiment, deflector wheels are not provided. Therefore, the main cable 12 comes to the driving sheave 6 from the car side diverting pulley 10 without passing through the deflector pulley, and then comes to the counterweight side diverting pulley 11 from the driving sheave 6 .

The counterweight side diverting pulley 11 is provided in the gap between the car 2 on the side where the counterweight 24 is arranged and the hoistway wall. In addition, the car-side diverting pulley 10 and the counterweight-side diverting pulley 11 are provided at approximately the same height.

The purpose of the eighth and ninth embodiments above is to reduce the Frett angle from the hoist 18 to the diverting pulleys 10 and 11, but these embodiments may be combined. That is, the hoisting machine 18 may be inclined relative to the horizontal direction, and the rotating surfaces of the diverting pulleys 10 and 11 may be arranged inclined relative to the vertical direction.

Embodiment 10

In this embodiment, a mounting stand for fixing the hoist 18 and the deflection pulleys 10 and 11 in the hoistway 1 will be described.

Fig. 31 is a hoist 18, which is a cross-sectional plan view (perpendicular projection view) of a state in which a mounting table for fixing deflection pulleys 10 and 11 is installed.

Reference numeral 25 designates a mounting platform fixed on the upper part of the guide rails. The mounting platform is a mounting platform in which beams are erected on the two guide rails for the car 2 and the two guide rails for the balance counterweight, and the beams are joined together to form an integral body. The hoist 18 is arranged horizontally on this installation stand 25 , and the car-side deflection pulley 10 and the counterweight-side deflection pulley 11 are also fixed to the common installation stand 25 . In the mounting table of this embodiment, as shown in Embodiment 9, the rotating surfaces of the deflection pulleys 10, 11 can be arranged obliquely with respect to the vertical direction, and the following effects can be obtained similarly.

Since the positional relationship between the hoist 18 and the deflection pulleys 10, 11 is determined by the assembly of the mounting table 25, the adjustment at the time of elevator installation becomes easy. In addition, the loads acting on the hoist, deflection pulleys 10, 11 and deflector wheels 23 are all supported by the four guide rails through the mounting table 25, so the strength of the hoistway 1 need not be considered.

In addition, it is also effective to mount the hoist 18 and the diverting pulleys 10 and 11 on the integral mount 25 as follows.

FIG. 32 is a diagram showing force in the horizontal direction after the hoist 18 and the deflection pulleys 10 and 11 are mounted on the integral mounting base 25 . FIG. 33 is a diagram showing the force in the vertical direction after the hoist 18 and the deflection pulleys 10 and 11 are mounted on the integral mounting base 25 .

Between the driving sheave 6 of the winch 18 and the car side diverting pulley 10, the driving sheave 6 and the counterweight side diverting pulley 11, the main cable 12 is wound. If the tension acting on the main cable 12 is set as T , then as shown in FIG. 32 , a force T acts on the drive sheave 6 along the axial direction of the main cable 12 . In addition, tension T acts on the car-side diverting pulley 10 and the counterweight-side diverting pulley 11, respectively. These forces act on the mount 25 through the support portion of the drive sheave 6 and the shaft portions of the deflection pulleys 10 and 11 , but the vector directions of the tension T are the same and form compressive forces that cancel each other out.

Since the force is balanced in the mounting table 25 to ensure the structural strength of the mounting table 25 in advance, no force acts on the car guide rails and the counterweight guide rails supporting the mounting table 25 .

In addition, if the weight of the hoist 18, the car side diverting pulley 10, the counterweight side diverting pulley 11, and the mounting table 25 is W, the force in the vertical direction becomes 2T+W as shown in FIG. 33 . This force is supported by the guide rails for the car and the guide rails for the balance weight. This force is the axial force of the guide rail, and since it is the strongest direction in terms of the strength of the guide rail, it is an ideal force application method.

This effect can be said to be the same as in the mounting table 25 described in the sixth embodiment.

In addition, in the case of this embodiment, the drive sheave 6 is provided on the upper side (ceiling side) of the hoisting machine 18, and the main cable 12 is located on the ceiling side of the installation stand 25. FIG. And the axles of deflection pulleys 10,11 are all fixed on the surface of the mounting platform 25 lower sides, in the fixed longitudinal section, the hanging position of the main cable 12 on the deflection pulleys 10,11 protrudes to the ceiling of the installation platform 25, and the deflection pulleys The lower ends of 10 and 11 protrude to the lower side of mounting table 25 . In other words, the driving sheave 6 is located on the upper and lower surfaces of the mounting table 25, on the side opposite to the side where the car 2 or the counterweight 24 is installed, and the winding of the main cable 12 on the diverting pulleys 10, 11 is also located The face on the opposite side. Thereby, the mounting table 25 is provided between the upper end and the lower end of the diverting pulleys 10 and 11 in the longitudinal section.

Such a structure is effective in reducing the installation space in the height direction of the mounting table 25 , the hoist 18 , and the diverting pulleys 10 , 11 . As shown in FIG. 34 , when the drive sheave 6 is installed below the hoist 18 , the installation space in the height direction of the mounting table 25 , the hoist 18 , and the deflection pulleys 10 and 11 is a distance S1. However, in the case of the present embodiment, since the drive sheave 6 is provided on the upper side (ceiling side) of the hoisting machine 18, and the main cable 12 is provided on the ceiling side of the installation platform 25, the installation platform 25, the hoisting machine 18 and the The installation space in the height direction of the diverting pulleys 10, 11 can be set to a distance S2 smaller than S1. In this embodiment, the rotation shafts of both deflection pulleys 10 and 11 are fixed on the lower surface of the installation table 25, and the hanging position of the main cable 12 protrudes toward the ceiling side of the installation table 25, but the rotation of either one The same effect can be obtained by disposing the shaft in this way.

In addition, both ends of the main cable 12 are fixed to the mounting table 25 . This eliminates the need to separately provide a bracket for fixing the main cable. As in the prior art, when the two ends of the main cable are installed on the building or the guide rail, because the tension of the main cable is concentrated in the installation part, there is a strength requirement for the building or the guide rail, but by installing the two ends of the main cable on the installation platform 25 Install the two ends of the main cable on the top, and then support the mounting table 25 by a plurality of guide rails, so that the supporting force can be dispersed.

In addition, the structure described above can also be applied to the mounting table 25 of the sixth embodiment.

In addition, in this embodiment, the mounting table 25 is fixed on the upper parts of the two guide rails for the car 2 and the two guide rails for the counterweight, but as long as the wall of the elevatorway 1 has sufficient strength, it can also be installed on the upper part of the elevator rail. on the inner wall of Road 1. In addition, the mounting table 25 may be fixed only to the guide rail for the car 2, or may be fixed only to the guide rail for the counterweight. Also, any number of the above-mentioned 4 guide rails can be selected for fixing.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; The cable and the hoist that lifts and lowers the car and the counterweight through the main cable are arranged in the hoistway obliquely relative to the horizontal direction, so that the space for the elevator device in the building can be reduced.

In addition, since the balance weight is arranged in the space between the hoistway wall and the car, and the hoist is arranged in the upper part of the space where the balance weight is arranged, the balance weight can be effectively utilized. Heavy clearance required.

Since a part of the winch overlaps the car in vertical projection, and other parts are located between the car and the hoistway wall, the part is closer to the ceiling of the hoistway than the other parts, Therefore, the lower part of the ceiling of the hoistway 1 can be made close to the car 2, saving space.

Since the hoist has a drive sheave around which the main cable is wound, and the drive sheave is disposed opposite to the ceiling of the hoistway, the space formed by the ceiling and side walls of the hoistway 1 can be effectively used.

It has a first deflection pulley around the part of the main cable from the car to the hoist and a second deflection around the part of the main cable from the hoist to the counterweight Pulleys, since the vertical projections of the part from the first diverting pulley to the winch and the part from the winch to the second diverting pulley are mutually intersecting, therefore, it is possible to increase the length of the main cable hanging on the winch The winding angle can increase the traction capacity.

Since the first diverting pulley and the second diverting pulley are disposed between the car and the hoistway wall in a vertical projection, the car can be installed higher than the diverting pulleys.

Because it has: the first diverting pulley that hangs the part of the main cable from the car to the hoist; the first diverting pulley that hangs the part of the main cable from the hoist to the balance weight 2 deflection pulleys; and a deflector wheel provided in the hoistway to change the direction from the first deflection pulley to the main cable of the hoist or from the second deflection pulley to the main cable of the hoist , so the degree of freedom in the arrangement of the diverting pulleys in the hoistway can be increased.

Since the rotating surface of the first deflecting pulley or the second deflecting pulley is parallel to the wall of the hoistway, the gap between the car on which the deflecting pulley is arranged and the wall of the hoistway can be reduced.

Since the rotating surface of the deflector wheel is arranged horizontally on the top of the elevator, the space on the top of the elevator can be effectively used.

Because the first diverting pulley, the second diverting pulley and the hoist are installed on a shared installation platform, and the positional relationship between the first diversion pulley, the second diversion pulley and the hoist depends on the assembly of the installation platform, Their position adjustment becomes easy.

Because the installation platform is arranged on the top of the hoistway, it is possible to prevent the winch from malfunctioning due to flooding.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; The main cable, the hoist for raising and lowering the car and the counterweight through the main cable, and a first diverting pulley around a portion of the main cable from the car to the hoist, and The second deflection pulley of the portion from the hoist to the balance weight that hangs the main cable is arranged on the rotation surface of at least one deflection pulley of the first deflection pulley and the second deflection pulley. Since the hoist is placed in the hoistway in a substantially vertical position and is inclined relative to the horizontal direction, the Fleet angle can be reduced, and the life of the main cable and the like can be extended.

The elevator device of the present invention has: a car that moves in the hoistway; a balance weight that moves in the hoistway; a main cable that suspends the car and the balance weight; and hangs the The main cable, the hoist for raising and lowering the car and the counterweight through the main cable, and a first diverting pulley around a portion of the main cable from the car to the hoist, and The second deflection pulley of the part from the hoist to the balance weight of the main cable is wound around, and the hoist is arranged substantially horizontally in the hoistway, so that the first deflection pulley and the second deflection pulley 2. At least one of the deflection pulleys is arranged in the hoistway with its rotating surface inclined relative to the vertical direction, so that the Fleet angle can be reduced, and the life of the main cable and the like can be extended.

The elevator device of the present invention has: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable suspending the car and the balance weight; The main cable, the hoist for raising and lowering the car and the counterweight through the main cable, and a first diverting pulley around a portion of the main cable from the car to the hoist, and The second deflection pulley of the part from the hoist to the counterweight on which the main cable is hung is arranged substantially horizontally or inclined relative to the horizontal direction in the hoistway. The hoist, the first deflecting pulley, and the second deflecting pulley are arranged on a common mounting table provided in the hoistway, so that forces in the horizontal direction due to the tension of the main cable can be mutually canceled.

In addition, because the hoist has a driving sheave on which the main cable is wound, and the driving sheave is located on the upper and lower surfaces of the installation platform, opposite to the side where the car or the counterweight is arranged. On one side, the winding of the main cable on at least one of the first diverting pulley and the second diverting pulley is located on the opposite side, so the height of the winch, the installation platform, and the diverting pulley can be reduced Orientation setting space.

In addition, since both ends of the main cable are fixed on the mounting table, tension acting on the main cable can be supported in a dispersed manner.

Claims (16)

1. A kind of elevator device, has: the car that moves in hoistway; The counterweight that moves in described hoistway; Suspends the main cable that described car and described counterweight are suspended; The above-mentioned main cable, and the hoist for lifting and lowering the car and the counterweight through the main cable are characterized in that the hoist is arranged obliquely relative to the horizontal direction in the hoistway. 2. The elevator device according to claim 1, wherein the balance counterweight is disposed in a gap between the hoistway wall and the car, and the hoist is disposed on the space where the balance counterweight is disposed. The upper part of the heavy void. 3. The elevator device according to claim 1, wherein a part of the winch overlaps with the car in a vertical projection, and other parts are located between the car and the hoistway wall, so Said part is closer to the ceiling of said hoistway than said other part. 4. The elevator apparatus according to claim 1, wherein the hoist has a drive sheave around which the main rope is wound, and the drive sheave is arranged facing the ceiling of the hoistway. 5. The elevator apparatus according to claim 1, further comprising: a first deflection pulley for the portion from the car to the hoist around which the main cable is wound; , the second diverting pulley of the part from the winch to the balance weight, the vertical projection of the part from the first diverting pulley to the winch and the part from the winch to the second diverting pulley is cross each other. 6. The elevator apparatus according to claim 5, wherein the first diverting pulley and the second diverting pulley are disposed between the car and the hoistway wall in a vertical projection. 7. The elevator apparatus according to claim 1, further comprising: a first deflection pulley for a portion from the car to the hoist on which the main cable is wound; , the second diverting pulley of the part from the winch to the balance weight; A deflector wheel to the change of direction of the main cable of the hoist. 8. The elevator apparatus according to claim 7, wherein the rotation plane of the first diverting pulley or the second diverting pulley is parallel to the wall of the hoistway. 9. The elevator apparatus according to claim 7, wherein the rotating surface of the deflector wheel is arranged horizontally on the top of the hoistway. 10. The elevator apparatus according to claim 5 or 7, wherein the first diverting pulley, the second diverting pulley, and the hoist are mounted on a common mounting platform. 11. The elevator apparatus according to claim 10, wherein the installation platform is arranged on the top of the hoistway. 12. An elevator device, comprising: a car that moves in the hoistway; a balance weight that moves in the hoistway; a main cable that suspends the car and the balance weight; The above-mentioned main cable, and the hoist for raising and lowering the car and the counterweight through the main cable are characterized in that there is also a part of the main cable from the car to the hoist that hangs around the main cable. The first deflection pulley and the second deflection pulley of the portion from the hoist to the counterweight around which the main cable is wound, at least one deflection pulley of the first deflection pulley and the second deflection pulley The rotating surface of the hoist is arranged substantially vertically, so that the hoist is arranged in the hoistway obliquely relative to the horizontal direction. 13. An elevator device, comprising: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable on which the car and the balance weight are suspended; The above-mentioned main cable, and the hoist for raising and lowering the car and the counterweight through the main cable are characterized in that there is also a part of the main cable from the car to the hoist that hangs around the main cable. The first deflection pulley and the second deflection pulley around the part of the main cable from the hoist to the counterweight, the hoist is arranged approximately horizontally in the hoistway, and the first deflection At least one of the pulley and the second deflection pulley is arranged in the hoistway with a rotation surface inclined relative to the vertical direction. 14. An elevator device, comprising: a car moving in the hoistway; a balance weight moving in the hoistway; a main cable on which the car and the balance weight are suspended; The main cable, the hoist that lifts the car and the counterweight through the main cable, the hoist has a driving sheave that hangs around the main cable, and is characterized in that it also has a drive sheave that hangs around the main cable. The first deflection pulley of the part of the cable from the car to the hoist and the second deflection pulley of the part of the main cable from the hoist to the balance weight are wrapped around the part of the main cable. The hoist is arranged substantially horizontally or inclined relative to the horizontal direction in the road, and the hoist, the first deflection pulley, and the second deflection pulley are arranged on a common installation platform provided in the hoistway, and the The driving sheave is arranged on the upper side of the winch. 15. The elevator apparatus according to claim 14, wherein the drive sheave is located on the upper and lower surfaces of the installation platform, on the opposite side to the side where the car or the counterweight is arranged. The winding of the main cable on at least one of the first diverting pulley and the second diverting pulley is located on the opposite side. 16. The elevator apparatus according to claim 14, wherein both ends of the main cable are fixed to the installation table.

Images