JP2001048451A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To 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. SOLUTION: This elevator device 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.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus in which a hoist for driving a main rope connecting a car and a counterweight is installed in a hoistway.

[0002]

2. Description of the Related Art FIG. 35 and FIG.
FIG. 35 is a view showing a conventional elevator apparatus disclosed in Japanese Patent No. 9321, FIG. 35 is a perspective view conceptually showing, and FIG.
It is a principal part cross-sectional plan view. In the figure, 1 is a hoistway, 2
Is a car that moves up and down a predetermined path of the hoistway 1, 3 is a counterweight disposed on one side of a horizontal plane in the hoistway 1, 4 is a hoisting machine, and a supporting member 5 provided above the hoistway 1. A drive sheave 6 is provided below the ceiling and pivoted via a vertical axis.

[0003] Reference numeral 7 denotes a first car pulley provided on one side of the lower part of the car 2, 8 denotes a second car pulley provided on the other side of the lower part of the car 2, and 9 denotes an upper part of the counterweight 3. A counterweight pulley 10 is pivotally connected to the upper part of the hoistway 1 via a horizontal axis, and is a car-side turning pulley arranged at a position corresponding to the car second pulley 8. This is a counterweight-side turning pulley that is pivotally mounted and is disposed at a position corresponding to the counterweight pulley 9. In addition, car side turning pulley 1
0, the balance weight side turning pulley 11 partially overlaps with the car 2 in the vertical projection.

[0004] Reference numeral 12 denotes a main rope, one end of which is connected to the upper part of the hoistway 1 by a first rope stopper 13 disposed on the ceiling of the hoistway 1 corresponding to the car first pulley 7 and descends. It is wrapped around the first pulley 7 and the car second pulley 8 and rises, is wrapped around the car-side pulley 10, is stretched horizontally, is wrapped around the drive sheave 6, and is wrapped around the counterweight pulley 11. It is hung, descends, is wound around the counterweight pulley 9, rises, and the other end of the hoistway 1 is moved by the second rope stopper 14 disposed on the ceiling of the hoistway 1 corresponding to the counterweight pulley 9. It is connected to the upper part.

The conventional elevator apparatus is constructed as described above, and the hoist 4 is energized to rotate the drive sheave 6 so that the car 2 and the counterweight 3 are moved in opposite directions via the main rope 12. Go up and down. In addition, the hoisting machine 4 is arranged at the upper part in the hoistway 1, so that an independently provided machine room is omitted, and the space for the elevator device in the building is saved.

[0006]

In the conventional elevator apparatus as described above, the car-side turning pulley 10 and the counterweight-side turning pulley 11, as shown in FIG. 1 is located at the top.
For this reason, there is a problem that when the car 2 reaches the top floor, a space for the turning pulleys 10 and 11 is required between the car 2 and the hoistway ceiling.

The winding angle θ of the main rope 12 wound around the drive sheave 6 is determined by the positional relationship between the car-side turning pulley 10 and the counterweight-side turning pulley 11. The winding angle θ affects the traction capability of the drive sheave 6 and has the following relationship. Traction ability =
e ^{k θ} Therefore, in order to secure the traction capability by increasing the winding angle θ, it is necessary to arrange the positions of the car-side turning pulley 10 and the counterweight turning-side pulley 11 as close as possible. The degree of freedom in arranging each device on the road is reduced. In addition, if priority is given to the degree of freedom of arrangement of each device in the hoistway, the position of the car-side turning pulley 10 and the counterweight-side turning pulley 11 cannot always be brought close to each other, so that sufficient traction capacity is secured. Can not do it. The present invention has been made in order to solve such a problem, and incorporates a hoist in a hoistway,
It is another object of the present invention to provide an elevator apparatus which can be installed on a hoistway having a height corresponding to the height of the top floor of a building. It is another object of the present invention to obtain an elevator apparatus that secures traction capability by increasing the winding angle θ. It is another object of the present invention to provide an elevator apparatus that can reduce the fleet angle and extend the life of a main rope or the like. Here, the fleet angle is a value indicating how much the sheave groove of the drive sheave and the sheave groove of the weight-side turning pulley through which the main rope passes is displaced, and will be described in detail later.

[0008]

According to the present invention, there is provided an elevator apparatus comprising: a car moving in a hoistway; a counterweight moving in the hoistway; and a main rope suspending the car and the counterweight. An elevator having a hoist around which the main rope is wound and which raises and lowers the car and the counterweight via the main rope, wherein the hoist is inclined with respect to a horizontal direction in the hoistway. It is the one that was arranged.

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

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

Further, the hoist has a drive sheave around which the main rope is wound, and the drive sheave is arranged to face a ceiling of the hoistway.

A first turning pulley around which a portion of the main rope from the car to the hoist is wound, and a portion of the main rope from the hoist to the counterweight is formed. A second turning pulley to be wound around, and a vertical projection of a portion from the first turning pulley to the hoist and a vertical projection of a portion from the hoist to the second pulley intersect with each other. is there.

Further, the first turning pulley and the second turning pulley are arranged between the car and the hoistway wall in vertical projection.

Still further, a first turning pulley around which a portion from the car to the hoist is wound around the main rope, and a portion from the hoist to the counterweight of the main rope. And a main rope provided in the hoistway and extending from the first deflection pulley to the hoist, or a main rope extending from the second deflection pulley to the hoist. And a deflector that changes the direction of the vehicle.

The first turning pulley or the second turning pulley
The turning surface of the turning pulley is parallel to the wall of the hoistway.

Further, the deflecting wheel is arranged at the top of the hoistway so that the rotating surface is horizontal.

Still further, the first turning pulley, the second turning pulley, and the hoist are mounted on a common mount.

[0018] The mounting base is arranged at the top of the hoistway.

The elevator apparatus according to the present invention is characterized in that a car moving in the hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope being wound In an elevator apparatus having a hoist that is hung and raises and lowers the car and the counterweight via the main rope,
A first turning pulley around which a portion from the car to the hoist is wound, and a second turning pulley around which a portion from the hoist to the counterweight of the main rope is wound. The rotating surface of at least one of the first turning pulley and the second turning pulley is disposed substantially vertically, and the hoist is inclined with respect to the horizontal direction to be inserted into the hoistway. It is arranged.

In the elevator apparatus according to the present invention, a car moving in the hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope being wound In an elevator apparatus having a hoist that is hung and raises and lowers the car and the counterweight via the main rope,
A first turning pulley around which a portion from the car to the hoist is wound, and a second turning pulley around which a portion from the hoist to the counterweight of the main rope is wound. Then, the hoist is disposed substantially horizontally in the hoistway, and a rotating surface of at least one of the first turning pulley and the second turning pulley is inclined with respect to a vertical direction. It is arranged in the hoistway.

The elevator apparatus according to the present invention is characterized in that a car moving in the hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope are wound around the car. In an elevator apparatus having a hoist that is hung and raises and lowers the car and the counterweight via the main rope,
A first turning pulley around which a portion from the car to the hoist is wound, and a second turning pulley around which a portion from the hoist to the counterweight of the main rope is wound. The hoisting machine is disposed substantially horizontally in the hoistway or disposed so as to be inclined with respect to the horizontal direction, and the hoisting machine, the first turning pulley, and the second turning pulley are placed in the hoistway. Are arranged on a common mounting base provided in the first embodiment.

Further, the hoist has a drive sheave around which the main rope is wound, and the drive sheave is mounted on the upper or lower surface of the mounting base on the side where the car or the counterweight is located. And at least one of the first turning pulley and the second turning pulley is wound around the main rope on the opposite side.

Further, both ends of the main rope are fixed to the mounting base.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 4 show an example of an embodiment of the present invention. FIG. 1 is a conceptual front view, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 4 is a perspective view corresponding to FIG. In the figure, 1 is a hoistway, 2 is a car that moves up and down a predetermined path of the hoistway 1, and is provided with an entrance 15 and an upper beam 16, and a ceiling upper surface is lowered from an upper beam 16 upper surface to form a retirement surface 17. ing.

Reference numeral 3 denotes a counterweight disposed on one side of a horizontal plane in the hoistway 1, and reference numeral 18 denotes a hoist, which is an upper corresponding position of the side surface of the car 2 away from the entrance 15;
The drive sheave 6 is disposed at a position corresponding to the retirement surface 17 of the hoistway 1, is mounted on the lower surface of the ceiling of the hoistway 1, and is supported by a vertical axis. The sheave 6 is a hoist 1
8 is located on the ceiling side of the hoistway 1 and faces the ceiling of the hoistway 1. The drive sheave 6 in this embodiment has a smaller diameter than the outer shape of the hoist 18. With this arrangement,
The space formed by the ceiling and the side wall of the hoistway 1 is effectively used.

The hoisting machine 18 is inclined obliquely with respect to the horizontal direction (arranged obliquely when viewed from the side).
That is, the hoisting machine 18 has a part that overlaps the car 2 in the vertical projection, another part is located between the car 2 and the wall of the hoistway 1, and a part that overlaps the car 2 is another part. It is inclined so as to be closer to the ceiling of the hoistway 1. Also,
The hoisting machine 18 is installed so as to be located on the side wall of the hoistway 1 as much as possible.

Reference numeral 7 denotes a first car pulley provided on one side of the lower part of the car 2, and reference numeral 8 denotes a second car pulley provided on the other side of the lower part of the car 2.

Reference numeral 9 denotes a counterweight pulley provided above the counterweight 3, and reference numeral 10 denotes a car-side turning pulley, which is disposed in the space between the inner wall of the hoistway 1 and the car 2 in vertical projection, and The first car 1 is pivotally connected to the upper part of the car 1 via a horizontal axis and is arranged at a position corresponding to the second car pulley 8.

Numeral 11 denotes a counterweight-side turning pulley, which is disposed in the space between the inner wall of the hoistway 1 and the car 2 in vertical projection, and is pivotally mounted on the upper part of the hoistway 1 via a horizontal axis. It is arranged at a position corresponding to the weight pulley 9. Car side turning pulley 10 and counterweight side turning pulley 11
Is the same hoistway 1 on which the car-side turning pulley 10 is located
In the gap between the inner wall of the car and the car 2. Such an arrangement is effective in reducing the cross-sectional area of the hoistway 1.

In this embodiment, the hoisting machine 18 and the turning pulleys 10 and 11 are located above the gap between the car 2 and the side wall of the hoistway 1, especially where the counterweight 3 is disposed.
Are arranged, and the space required for installing the counterweight 3 is effectively used. 3, the hoisting machine 18 is disposed near the corner of the hoistway 1, so that interference with the car 2 is reduced as much as possible.

The rotating surfaces of the car-side turning pulley 10 and the counterweight turning-side 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. Reference numeral 19 denotes a shock absorber provided on the bottom surface of the hoistway 1 and arranged corresponding to the car 2 and the counterweight 3 respectively.

Reference numeral 12 denotes a main rope, one end of which is connected to the upper portion of the hoistway 1 by a first rope stopper 13 disposed on the upper portion of the hoistway 1 corresponding to the first pulley 7 of the car, and descends. The first pulley 7 and the second pulley 8 of the car are raised and wound around the pulley 10 on the car side, stretched in the horizontal direction, wound on the sheave 6 for driving, and turned on the pulley 11 on the counterweight side. It is wound around, descends, is wound around the counterweight pulley 9 and rises, and the other end corresponds to the counterweight pulley 9.
It is connected to the upper part of the hoistway 1 by the second rope stopper 14 arranged at the upper part.

In the main rope 12, a portion from the car-side turning sheave 10 to the driving sheave 6 and a portion from the driving sheave 6 to the counterweight side turning sheave 11 intersect with each other in the horizontal projection view. However, since the hoisting machine 18 is arranged diagonally, and the position of the main rope 12 wrapping around the drive sheave 6 is shifted vertically at the beginning and end of winding, the car turning side pulley 10 The part reaching the drive sheave 6 and the part leading from the drive sheave 6 to the counterweight-side turning pulley 11 do not interfere with each other. In addition, the winding angle θ of the main rope 12 wound around the drive sheave 6 is increased, thereby increasing the traction capability.

The car-side turning pulley 10 is installed at a position lower than the counterbalanced weight-side turning pulley 11, but the position of the main rope 12 wrapping around the drive sheave 6 depends on the start and end of winding. This is because it is shifted in the vertical direction.

In the elevator apparatus constructed as described above, the hoisting machine 18 is energized, the drive sheave 6 rotates, and the car 2 and the counterweight 3 move up and down in the opposite directions via the main rope 12. I do. In addition, the hoisting machine 18 is arranged at the upper part in the hoistway 1, and an independently provided machine room is omitted. This saves space in the building for the elevator device.

A hoist 18 is mounted on the upper end of the hoistway 1, and the lower end of the hoist 18 is located above the lower ends of the turning pulleys 10 and 11. Further, the hoisting machine 18 is provided at a position corresponding to the upper side of the side surface of the car 2 away from the entrance 15, that is, at a position corresponding to the retired surface 17 of the car 2. Further, a car-side turning pulley 10 and a counterweight turning-side pulley 11 are disposed in a gap between the edge of the car 2 and the inner wall of the hoistway 1.

The drive sheave 6 is provided above the hoisting machine 18, and the main rope 12 is stretched horizontally with respect to the drive sheave 6. For this reason, the hoistway 1 formed at a height corresponding to the floor height of the top floor (not shown) of the building
The hoisting machine 18 can be attached to the vehicle, and the main cable 12 can be stretched.

Accordingly, the lower surface of the ceiling of the hoistway 1 is
It is not necessary to make the lower surface of the ceiling of the hoistway 1 higher than the height of the top floor in the building,
The construction cost required for the installation space of the elevator device can be reduced. In addition, since the height of the building can be reduced together with such an operation, it is possible to eliminate a problem that impairs the neighboring sunshine right.

Further, of the main ropes 12, the car-side turning pulley 10
And the part from the sheave 6 to the drive sheave 6 and the part from the drive sheave 6 to the counterweight side turning pulley 11 intersect in the horizontal projection view without interfering with each other, and therefore are wound around the drive sheave 6. The winding angle θ of the main rope 12 increases. Therefore, traction capability can be increased. This increase in traction capability has the following effects.

Assuming that the elevator apparatus has a car weight W1, a capacity weight W2, and a counter weight W3, W1 + W2
The counterweight W3 is set so that x1 / 2 = W3.
Is designed. The traction capacity of drive sheave 6 is W3
It is necessary to adjust according to the increase / decrease of the value of / W1, but in recent years, for the purpose of cost reduction, the weight of the cab has been reduced (reduction of W1). In this case, W3 / W1 increases and traction capacity increases. I need to do that. Therefore, by increasing the traction capacity, the weight of the cab can be further reduced, and the cost can be reduced.

The traction capacity is represented by e ^{k θ} (k: a constant determined by the groove shape of the drive sheave, θ: winding angle). To obtain the same traction capacity,
If the winding angle θ can be increased by N times, the groove coefficient k
Is 1 / N times. Assuming that the hardness of the drive sheave 6 is H, the wear depth of the drive sheave is proportional to m / H. Here, m is a constant determined by the groove shape of the driving sheave, and increases or decreases in accordance with increase or decrease of the groove coefficient k. In order to obtain the same traction capability, if the winding angle θ can be made large, the groove coefficient k may be small, and m is also small. Therefore, even if a material having a low hardness H of the drive sheave can be used, the increase in wear depth can be suppressed,
The life of the drive sheave can be ensured. Therefore, an inexpensive material having lower hardness can be selected.

Further, by crossing the main ropes 12 as in this embodiment, the tension of the main ropes 12 can be canceled. FIG. 20 shows the axial force when the start and end of winding on the drive sheave 6 cross each other and do not cross each other. As shown in FIG. 20, assuming that the tension of the main rope 12 is P, an axial force of 2P is required when the main rope 12 does not intersect. However, by intersecting, the axial force becomes 2P1 smaller than 2P. Can be reduced. This makes it possible to design the shaft of the drive sheave 6 to be thin and to design the shaft with low strength.

Embodiment 2 5 to 8 are views showing an example of another embodiment of the present invention. FIG. 5 is a front view conceptually showing a configuration of an elevator apparatus in this embodiment, and FIG. 6 is a side view of FIG. FIG. 7 is a cross-sectional plan view (vertical projection) of the main part of FIG. 5, and FIG. 8 is a perspective view corresponding to FIG. In the figure, the same reference numerals as those in FIGS.

Reference numeral 20 denotes a hoisting machine, which corresponds to an upper position corresponding to the side of the car 2 away from the entrance 15, that is, the retired surface 1 of the car 2
7 and is mounted on the lower surface of the ceiling of the hoistway 1. Further, the hoist 20 is provided with a drive sheave 6 pivoted via a vertical axis, and a drive motor 21 is provided to protrude downward from the lower surface. The drive sheave 6 is located on the ceiling side of the inner hoistway 1 of the hoisting machine 20, and the drive motor 21 is located on the opposite side of the ceiling of the inner hoistway 1 of the hoisting machine 20. The drive sheave 6 has a smaller diameter than the outer shape of the hoisting machine 20. The driving motor 21 is connected to the car 2
And the inner wall of the hoistway 1.

In the present embodiment, the hoisting machine 20 and the turning pulley 1 are located above the space in which the counterweight 3 is arranged, especially in the space formed by the car 2 and the side wall of the hoistway 1.
0 and 11 are arranged, and the space necessary for installation of the counterweight 3 is effectively used. Further, as can be seen from the cross-sectional plan view 7, the hoisting machine 20 is disposed near the corner of the hoistway 1 to reduce interference with the car 2 as much as possible.

The hoisting machine 20 is arranged obliquely with respect to the horizontal direction so that the portion where the drive motor 21 is mounted is lowered and the portion where the drive motor 21 is not mounted is raised (side surface). Are arranged diagonally when viewed from above). The rotating surfaces of the car-side turning pulley 10 and the weight-side turning pulley 11 are arranged obliquely in the cross-sectional plan view 7 so as to intersect with each other.

The car-side turning pulley 10 is located at a position lower than the counterweight-side turning pulley 11. And
The position at which the main rope 12 is wound around the driving sheave 6 is shifted in the vertical direction at the start and end of winding. by this,
A portion of the main rope 12 from the car-side turning sheave 10 to the drive sheave 6 and a counterweight side turning sheave 1 from the drive sheave 6.
The vertical projections intersect without the parts leading to 1 interfering with each other. Thereby, the winding angle θ of the main rope 12 wound around the drive sheave 6 increases, and the traction capability increases.

Also in the elevator apparatus constructed as described above, the hoisting machine 20 is mounted on the upper end of the hoistway 1 and the lower end of the hoisting machine 20 is located above the lower ends of the turning pulleys 10 and 11. Is done. Although the drive motor 21 projects downward from the lower surface, it is disposed in the gap between the edge of the car 2 and the inner wall of the hoistway 1. Further, the hoisting machine 20 is provided at a position corresponding to an upper side of the side surface of the car 2 away from the entrance 15, that is, at a position corresponding to the retreat surface 17 of the car 2.

The car-side turning pulley 10 and the counterweight-side turning 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, the same operation as the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIGS.

Embodiment 3 9 to 11 are also views showing another example of the embodiment of the present invention. FIG. 9 is a conceptual front view, FIG. 10 is a cross-sectional plan view (vertical projection view) of a main part of FIG. FIG. 11 is a perspective view corresponding to FIG.

In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote corresponding parts, and 22 is a main rope, one end of which is connected to the lower part of the car 2 on the side of the entrance 15 to ascend and turn to the car side. It is wound around the pulley 10, stretched in the horizontal direction, wound around the drive sheave 6, wound around the counterweight-side turning pulley 11,
It descends and is connected to the upper part of the counterweight 3. Furthermore, the car-side turning pulley 10 and the counterweight side turning pulley 1
1 is arranged in the gap between the edge of the car 2 and the inner wall of the hoistway 1.

Also in the elevator apparatus constructed as described above, the hoisting machine 18 is mounted on the upper end of the hoistway 1 and its lower end is arranged above the lower ends of the turning pulleys 10 and 11. Further, the hoisting machine 18 is provided at a position corresponding to the upper side of the side surface of the car 2 away from the entrance 15, that is, at a position corresponding to the retired 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 drive sheave 6 in this embodiment has a smaller diameter than the outer shape of the hoist 18. With this arrangement, the space formed by the ceiling and the side wall of the hoistway 1 is effectively used.

The hoisting machine 18 is inclined at an angle to the horizontal direction (arranged obliquely when viewed from the side), and is installed so as to be located on the side wall of the hoistway 1 as much as possible.
In the present embodiment, the hoisting machine 18 and the turning pulleys 10 and 11 are arranged above the space where the counterweight 3 is arranged especially in the space formed by the car 2 and the side wall of the hoistway 1. The space required for the installation of the counterweight 3 is effectively utilized. The hoist 18 is located near the corner of the hoistway 1 as can be seen from FIG.
Interference with the car 2 is reduced as much as possible.

Therefore, although detailed description is omitted, FIG.
11 to FIG. 11, the same operation as the embodiment of FIGS.

Embodiment 4 12 to 14 are also views showing an example of another embodiment of the present invention. FIG. 12 is a conceptual front view, FIG. 13 is a cross-sectional plan view (vertical projection view) of a main part of FIG. FIG. 14 is a perspective view corresponding to FIG. In the figure, the same reference numerals as those in FIGS.

Reference numeral 23 denotes a deflecting wheel, which is provided at a position below the ceiling of the hoistway 1 by a vertical axis and stretches the main rope 12 between the drive sheave 6 and the car-side turning pulley 10 in a direction along the inner wall surface of the hoistway 1. Set up. That is, the deflecting wheel 23 is the car-side turning pulley 10.
, The direction of the main rope 12 leading to the hoisting machine 18 is changed. Such a structure is effective because the degree of freedom in arranging the turning pulley in the hoistway can be increased.

In this embodiment, the deflecting wheel 23 is arranged such that the rotating surface is horizontal. In addition, deflector car 2
Reference numeral 3 denotes a space which is arranged at a position not overlapping with the car 2 in the cross-sectional plan view 13, and particularly a space between the side surface of the car 2 and the inner wall surface of the hoistway 1, and in which the counterweight 3 is arranged. Is located at the top.

Also in the elevator apparatus constructed as described above, the hoisting machine 18 is mounted on the upper end of the hoistway 1 and its lower end is located above the lower ends of the turning pulleys 10 and 11. Further, the hoisting machine 18 is provided at a position corresponding to the upper side of the side surface of the car 2 away from the entrance 15, that is, at a position corresponding to the retired surface 17 of the car 2. Furthermore, the car-side turning pulley 10 and the counterweight turning side pulley 11 are
And the inner wall of the hoistway 1. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 12 to 14, the main rope 12 between the drive sheave 6 and the car-side turning pulley 10 is stretched by the deflecting sheave 23 in a direction along the inner wall surface of the hoistway 1. Therefore, the side surface of the car-side turning pulley 10 can be arranged parallel to the inner wall surface of the hoistway 1. For this reason, 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 in the building can be further reduced. There is also an advantage that the winding angle θ of the main rope 12 around the drive sheave 6 can be increased. Furthermore, since the deflecting wheel 23 does not overlap with the car 2 in the vertical projection, and is disposed in the gap between the car 2 and the hoistway 1, interference between the car 2 and the deflecting wheel 23 can be prevented, and interference is prevented. The space required for is unnecessary.

Embodiment 5 FIG. FIGS. 15 to 17 are also views showing another example of the embodiment of the present invention. FIG. 15 is a conceptual front view, FIG. 16 is a cross-sectional plan view (vertical projection view) of FIG. FIG. 17 is a perspective view corresponding to FIG. In the figure, the same reference numerals as those in FIGS. 12 to 14 denote the corresponding parts, and a description thereof will be omitted. Numeral 24 denotes a counterweight, which is provided in a gap between the outer edge connected to the entrance 15 of the car 2 and the inner wall surface of the hoistway 1. That is, of the side surfaces of the car 2, the surface adjacent to the surface on which the entrance 15 is formed and the hoistway 1
The counterweight 24 is disposed in a space between the inner wall surface of the vehicle and the vehicle.

Reference numeral 23 denotes a deflecting wheel, which is provided at a position below the ceiling of the hoistway 1 by a vertical axis and stretches the main rope 12 between the drive sheave 6 and the car-side turning pulley 10 in a direction along the inner wall surface of the hoistway 1. Set up. That is, from the car-side turning pulley 10 to the hoisting machine 18
Is changed in the direction of the main rope 12 leading to. Deflecting car 23
Are arranged in this embodiment so that the rotation surface is horizontal.

Also in the elevator apparatus constructed as described above, the hoisting machine 18 is mounted on the upper end of the hoistway 1 and its lower end is arranged above the lower ends of the turning pulleys 10 and 11. Further, the hoisting machine 18 is provided at a position corresponding to the upper side of the side surface of the car 2 away from the entrance 15, that is, at a position corresponding to the retired surface 17 of the car 2. Furthermore, the car-side turning pulley 10 and the counterweight turning side pulley 11 are
And the inner wall of the hoistway 1.

Further, since the main rope 12 between the drive sheave 6 and the car-side turning pulley 10 is stretched in the direction along the inner wall surface of the hoistway 1 by the deflecting sheave 23, the side surface of the car-side turning pulley 10 is It can be arranged parallel to the inner wall surface of the hoistway 1.
Therefore, although detailed description is omitted, the same operations and effects as those of the embodiments of FIGS. 12 to 14 can be obtained in the embodiments of FIGS.

Embodiment 6 FIG. This embodiment will particularly describe the structure of a mount for fixing the hoist, the turning pulleys 10 and 11 and the deflector 23 in the hoistway 1.
FIG. 18 shows a hoist, deflection pulleys 10, 11 and a deflector 2
3 is a side view of a state where a mounting base for fixing 3 is installed,
FIG. 19 is a cross-sectional plan view (vertical projection view).

Reference numeral 25 denotes a mounting table. The mounting table passes a beam through two guide rails of the car 2 and two guide rails of the counterweight, and is integrally fixed to the beam. On this mount 25, the hoisting machine is arranged obliquely with respect to the horizontal direction, the rotating shafts of the turning pulleys 10 and 11 are mounted, and the rotating shaft of the deflector wheel 23 is also mounted. The hoist, the turning pulley 10,
11 and the deflecting wheel 23 are fixed, so that their positional relationship is determined by assembling the mount 25, so that adjustment at the time of installing the elevator becomes easy. Further, since all loads applied to the hoist, the turning pulleys 10 and 11 and the deflecting wheel 23 are supported by the four guide rails via the mount 25, there is no need to consider the strength of the hoistway 1.

In this embodiment, the mount 25 is fixed to the two guide rails of the car 2 and the two guide rails of the counterweight, but if the wall of the hoistway 1 has sufficient strength. , May be attached to the inner wall of the hoistway 1. In addition, the mounting base 25 can be applied even when the deflector wheel 23 is not provided in the above embodiment.

Embodiment 7 21 and 22 show this embodiment. FIG. 21 is a side view, and FIG. 22 is a cross-sectional plan view (vertical projection view) of a main part. This embodiment is the same as the previous embodiment in that the hoist is arranged obliquely with respect to the horizontal direction at the position of the lower surface of the ceiling of the hoistway 1. Pulley 10 to drive sheave 6
And the vertical projection of the portion from the drive sheave 6 to the counterweight side turning pulley 11 does not intersect.

In the figure, the same reference numerals as those in FIGS. 15 to 17 denote corresponding parts, and a description thereof will be omitted. 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 used. In this embodiment, a portion of the main rope 12 from the car-side turning sheave 10 to the drive sheave 6 and a portion from the drive sheave 6 to the counterweight side turning sheave 11 are shown in FIG. Do not intersect as However, by making the hoisting machine 18 oblique with respect to the horizontal direction, the rope deflection angle between the turning pulley 11 and the deflector wheel 23 can be reduced as compared with the conventional example. Further, the dimension B from the ceiling position of the car 2 when the car 2 is raised most to the ceiling of the hoistway 1 can be made smaller than the dimension A required when the hoisting machine 18 is horizontally arranged.

Embodiment 8 FIG. Another embodiment in which a hoist is arranged obliquely with respect to the horizontal direction at the position of the ceiling lower surface of the hoistway 1 will be described below. 23 and 24 show this embodiment, FIG. 23 is a front view, and FIG. 24 is a cross-sectional plan view (vertical projection view) of a main part. In the figure, FIG.
17 denote the corresponding parts, and a description thereof will be omitted.

The hoisting machine 18 is arranged at the top of the hoistway 1 in a state inclined at an angle α with respect to the horizontal direction. The hoisting machine 18 partially overlaps the car 2 in the vertical projection view, and the other part is located on the gap between the car 2 and the hoistway wall. In particular, it is located in the gap between the car 2 on the side where the counterweight 24 is arranged and the hoistway wall. Since the hoisting machine 18 is inclined, the portion of the hoisting machine 18 that overlaps the car 2 is closer to the hoistway ceiling than the portion located above the gap. Further, the drive sheave 6 is installed on the ceiling side of the hoist 18, and the drive sheave 6 is also inclined by the angle α similarly to the hoist 18. The size of the drive sheave 6 is smaller in diameter than the motor portion of the hoist.

Further, in this embodiment, no deflecting wheel is provided. Therefore, the main rope 12 reaches the drive sheave 6 from the car-side turning sheave 10 without passing through the deflector wheel, and further reaches the counterweight side turning sheave 11 from the drive sheave 6.
The counterweight-side turning pulley 11 is located above the gap between the car 2 on which the counterweight 24 is disposed and the hoistway wall, and is lower than the car-side turning pulley 10 (in a direction away from the hoistway ceiling). positioned. In addition, the car-side turning pulley 10 and the counterweight-side turning pulley 11 are provided so that the rotation surfaces thereof are substantially vertical.

The hoisting machine disposed obliquely with respect to the horizontal direction at the position of the lower surface of the ceiling of the hoistway 1 as in this embodiment is necessary to secure the life of the groove of the drive sheave 6 and the main rope 12. It is an effective means. This will be described in detail below.

FIG. 25 is a diagram showing the positional relationship between the drive sheave 6 and the counterweight-side turning pulley 11 in the conventional elevator apparatus shown in FIG. In FIG. 25, the sheave groove of the drive sheave 6 is horizontal, the sheave groove of the weight-side turning pulley 11 is vertically arranged, and the main rope 12 is provided between the two sheave grooves.
Indicates a state in which is wound. FIG. 25 (b)
FIG. 25 (a) is a view of FIG. 25 (a) viewed from the direction of the arrow. FIG.
(B) shows a case where the main rope 12 is configured by three ropes. The rope 12a is set at a position shifted by a distance a1 when the rope 12a shifts from the sheave groove of the drive sheave 6 to the sheave groove of the weight-side turning pulley 11.

In FIG. 25, θ1 indicates the fleet angle. In the case of FIG. 25, the fleet angle θ1 is
It can be calculated as follows. θ1 = Arctan (a1 / L) This fleet angle θ1 is a value indicating how much the sheave groove of the drive sheave 6 through which the main rope 12 passes and the sheave groove of the weight-side turning pulley 11 are displaced. When this value increases, the main rope 12 comes to strongly hit the sheave groove side surface,
The wear force of the main rope 12 and the sheave groove increases. That is,
As shown in FIG. 26, in the case of the fleet angle θ1, the tension of the main rope 12 is T, and the friction coefficient between the sheave groove and the main rope 12 is μ.
Then, a force of T × sin θ acts on the side surface of the sheave groove, and as a result, a frictional force of μT × sin θ is generated.

There is a problem that the life of the main rope 12 and the sheave groove is shortened by the frictional force. Generally, in the case of an elevator, the fleet angle θ1 is 1.5 °
The following is required to secure the life.

On the other hand, when the hoisting machine 18 is inclined by an angle α with respect to the horizontal direction as in the present embodiment, the positional relationship shown in FIG. 27 is obtained. FIG. 27B is an enlarged view of the circle of FIG. In the case of FIG. 27, the rope 12a
When shifting from the sheave groove of the drive sheave 6 to the sheave groove of the weight-side turning pulley 11, it is set at a position shifted by a distance a2. Since the hoisting machine 18 is inclined, the distance a2 is a2
<A1. And the fleet angle θ2 is θ
2 = Arctan (a2 / L).

The relationship between the fleet angles θ1 and θ2 is that fleet angle θ2 <fleet angle θ1, so that the life of the main rope 12 and the sheave groove can be extended by tilting the hoisting machine 18.

Next, the relationship between the inclination angle α of the hoisting machine 18 and the reduction amount of a2 is as shown in FIG. As can be seen from this graph, when the angle α is small, the distance of a2 sharply decreases, and changes gradually as the angle α approaches 90 °. From this graph, even if the hoisting machine 18 is slightly tilted, the fleet angle θ2 becomes small,
It can be seen that a great effect can be obtained. As described above, by inclining the hoist 18 with respect to the horizontal direction,
Effective effects can be obtained in securing the life of the sheave grooves of the drive sheave 6 and the main ropes 12.

However, in design, how many times the inclination angle α is set depends on other factors such as the space of the hoistway. For example, the more the angle α is inclined, the higher the top of the hoistway needs to be set. As a result, construction costs are increased. Therefore, it is necessary in design to set the inclination angle α of the hoist while taking into account the life of the sheave groove of the drive sheave 6 and the life of the main ropes 12 and within a range that does not increase construction costs.

The sheave groove of the drive sheave 6 described above,
The effect of extending the life of the main rope 12 is an effect obtained also in the previous embodiment in which the hoist is disposed obliquely with respect to the horizontal direction. In addition, the hoisting machine 1 according to this embodiment
8 also has a drive sheave 6 having a diameter smaller than the outer shape of the hoisting machine 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 used.

Embodiment 9 FIG. 29 and 30 show this embodiment, FIG. 29 is a front view, and FIG. 30 is a cross-sectional plan view (vertical projection view) of a main part. In the figure, FIG.
The same reference numerals as in FIGS. 5 to 17 denote corresponding parts, and a description thereof will be omitted.

The hoisting machine 18 is disposed horizontally at the top of the hoistway. On the other hand, the car-side turning pulley 10 and the counterweight-side turning pulley 11 have their rotating surfaces inclined by an angle α with respect to the vertical direction. Therefore, although the hoisting machine 18 is arranged horizontally, the movement amount a2 and the fleet angle θ2 when the main rope 12 shifts from the sheave groove of the drive sheave 6 to the sheave groove of the weight-side turning pulley 11 are set as follows. The values are the same as in the eighth embodiment. Therefore, the life of the main rope 12 and the sheave groove can be extended as compared with the related art.

The hoisting machine 18 partially overlaps the car 2 in the vertical projection view, and the other part is located on the gap between the car 2 and the hoistway wall. Further, in this embodiment, no deflector wheel is provided. Therefore, the main rope 12 reaches the drive sheave 6 from the car-side turning pulley 10 without passing through the deflector wheel,
Further, the drive sheave 6 leads to the counterweight-side turning pulley 11. The counterweight-side turning pulley 11 is located on a gap between the car 2 on the side where the counterweight 24 is disposed and the shaft wall. The car-side turning pulley 10 and the weight-side turning pulley 11 are installed at substantially the same height.

Although the above-described eighth and ninth embodiments are aimed at reducing the fleet angle from the hoisting machine 18 to the turning pulleys 10 and 11, it is also possible to combine these embodiments. That is, the hoisting machine 18 may be inclined with respect to the horizontal direction, and the rotating surfaces of the turning pulleys 10 and 11 may be inclined with respect to the vertical direction.

Embodiment 10 FIG. This embodiment describes a mount for fixing the hoisting machine 18 and the turning pulleys 10 and 11 in the hoistway 1. FIG. 31 shows the hoisting machine 1.
8, is a cross-sectional plan view (vertical projection view) of a state where a mounting base for fixing the turning pulleys 10 and 11 is installed.

Reference numeral 25 denotes a mount fixed to the upper portion of the guide rail. The mount passes beams through two guide rails of the car 2 and two guide rails of the counterweight, and the beams are joined to each other. And an integral mounting base. The hoisting machine 18 is horizontally disposed on the mounting stand 25, and the car-side turning pulley 10 and the counterweight-side turning pulley 11 are also fixed to the common mounting stand 25. As in the ninth embodiment, the rotating surfaces of the turning pulleys 10 and 11 can be arranged obliquely with respect to the vertical direction on the mounting base of this embodiment, and the following effects can be similarly obtained. can get.

Since the positional relationship between the hoisting machine 18 and the turning pulleys 10 and 11 is determined by assembling the mounting stand 25, adjustment at the time of installing the elevator becomes easy. Further, since all loads applied to the hoist, the turning pulleys 10 and 11 and the deflecting wheel 23 are supported by the four guide rails via the mount 25, there is no need to consider the strength of the hoistway 1.

[0109] The attachment of the hoisting machine 18 and the turning pulleys 10 and 11 to the integrated mounting stand 25 is also effective in the following points. FIG. 32 shows the hoisting machine 18, the turning pulleys 10, 11
FIG. 9 is a diagram showing a horizontal force when is mounted on an integrated mounting base 25. FIG. 33 shows the hoisting machine 18 and the turning pulley 1
It is a figure which shows the force of the perpendicular direction at the time of attaching 0, 11 to the integrated mounting stand 25.

The main rope 12 is wound around the drive sheave 6 and the car-side turning pulley 10 of the hoisting machine 18 and between the drive sheave 6 and the weight-side turning pulley 11 while the tension is applied to the main rope 12. Is T, a T force is applied to the drive sheave 6 in the axial direction of the main rope 12 as shown in FIG. The tension T is also applied to the car-side turning pulley 10 and the counterweight-side turning pulley 11, respectively. These forces exert a force on the mount 25 via the support of the drive sheave 6 and the shafts of the turning sheaves 10 and 11, but become compressive forces that cancel each other out in the same vector direction of the tension T.

If the structural strength of the mounting table 25 is ensured in advance, the forces are balanced in the mounting table 25. Therefore, the force is applied to the guide rails of the car supporting the mounting table 25 and the guide rails of the counterweight. Has no effect.

Further, the hoisting machine 18, the car-side turning pulley 10,
The weight of the counterweight-side turning pulley 11 and the mounting base 25 is W
Then, the vertical force is 2T + W as shown in FIG.
Becomes This force is received by the guide rail of the car and the guide rail of the counterweight. These forces are all forces in the axial direction of the guide rail, and are the strongest directions in terms of rail strength, so that an ideal force is applied. This effect can be similarly applied to the mounting base 25 described in the sixth embodiment.

In the case of the present embodiment, the drive sheave 6 is provided above the hoisting machine 18 (on the ceiling side), and the main rope 12 is located on the ceiling side of the mount 25. And turning pulley 1
Both axes 0 and 11 are fixed to the lower surface of the mounting table 25. In the fixed vertical section, the position where the main rope 12 is wound around the turning pulleys 10 and 11 projects to the ceiling side of the mounting table 25. The lower ends of the turning pulleys 10 and 11 protrude below the mount 25. In other words, the drive sheave 5 is located on the opposite side of the upper and lower surfaces of the mount 25 from the side where the car 2 and the counterweight 24 are located, and the turning sheaves 10 and 11
The main rope 12 is also wound on the opposite surface. Thereby, the turning pulleys 10, 11 in the longitudinal section
Is located between the upper end and the lower end of the mounting table.

[0093] Such a structure includes the mounting stand 25, the hoisting machine 1
This is effective in reducing the installation space in the height direction of the turning pulley 8 and the turning pulleys 10 and 11. Hoisting machine 1 as shown in FIG.
8, when the drive sheave 6 is provided below,
The installation space in the height direction of the hoist 18 and the turning pulleys 10 and 11 is the distance of S1. However, in the case of the present embodiment, since the drive sheave 6 is provided above the hoisting machine 18 (on the ceiling side) and the main ropes 12 are located on the ceiling side of the mounting stand 25, Upper machine 18 and turning pulleys 10 and 11
The installation space in the height direction is a distance S2 smaller than S1
It can be. In this embodiment, the turning pulley 1
Both the rotation shafts 0 and 11 are fixed to the lower surface of the mount 25, and the position where the main rope 12 is wound protrudes toward the ceiling of the mount 25. A similar effect can be obtained even with a simple arrangement.

Further, both ends of the main rope 12 are fixed to a mounting stand 25. Accordingly, it is not necessary to separately provide a bracket for fixing the main rope. When both ends of the main rope are attached to a building or a guide rail as in the related art, the tension of the main rope is applied intensively to the attachment portion, so that the strength of the building or the guide rail is required. By attaching both ends of the main rope and supporting the mounting table 25 with a plurality of guide rails, the supporting force can be dispersed.

The structure described above is similar to that of the sixth embodiment.
Can be applied to the mounting table 25. In this embodiment, the mounting table 25 is fixed to the upper part of the two guide rails of the car 2 and the two guide rails of the counterweight. However, if the wall of the hoistway 1 has sufficient strength, Hoistway 1
May be attached to the inner wall of the vehicle. In addition, the mounting table 25 is
And may be fixed only to the guide rail of the counterweight. Further, any one of the four guide rails may be selected and fixed.

[0096]

According to the elevator apparatus of the present invention, there are provided a car moving in the hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope. Is wound around, and a hoist that raises and lowers the car and the counterweight via the main ropes, the hoisting machine is disposed in the hoistway to be inclined with respect to the horizontal direction in the hoistway. Therefore, the space for the elevator device in the building is reduced.

Further, since the counterweight is disposed in the gap between the hoistway wall and the car, and the hoist is disposed above the gap in which the counterweight is disposed, the counterweight is provided. It is possible to effectively use the space required for the installation of the device.

Further, in the hoisting machine, a part of the hoist overlaps with the car in vertical projection, another part is located between the car and the wall of the hoistway, and the part is the other part. Since it is closer to the ceiling of the hoistway, the lower surface of the ceiling of the hoistway 1 can be made closer to the car 2 and space can be saved.

Further, the hoist has a drive sheave around which the main rope is wound, and the drive sheave is arranged to face the ceiling of the hoistway. The space formed by the ceiling and the side walls of the road 1 can be used effectively.

Also, of the main rope, a first turning pulley around which a portion from the car to the hoist is wound, and a portion of the main rope from the hoist to the counterweight are formed. It has a second turning pulley to be wound around, and the vertical projections of the portion from the first turning pulley to the hoist and the portion from the hoist to the second pulley cross each other, The winding angle of the main rope wound around the hoist can be increased, and the traction capability can be increased.

Further, since the first turning pulley and the second turning pulley are arranged between the car and the hoistway wall in vertical projection, the car is positioned higher than the turning pulley. Can be done.

Further, of the main rope, a first turning pulley around which a portion from the car to the hoist is wound, and a portion of the main rope from the hoist to the counterweight. And a main rope provided in the hoistway and extending from the first deflection pulley to the hoist, or a main rope extending from the second deflection pulley to the hoist. , The degree of freedom in the arrangement of the turning pulley in the hoistway can be increased.

The first turning pulley or the second turning pulley
Since the turning surface of the turning pulley is parallel to the wall of the hoistway, the gap between the turning pulley and the wall of the hoistway can be reduced.

Further, since the deflector wheel is arranged at the top of the hoistway so that its rotating surface is horizontal, the space at the top of the hoistway can be used effectively.

Further, since the first turning pulley, the second turning pulley and the hoist are mounted on a common mount, the first turning pulley, the second turning pulley and the second pulley are assembled by assembling the mounting. Since the positional relationship between the turning pulley and the hoist is determined, it is easy to adjust these positions.

Since the mounting base is arranged at the top of the hoistway, the hoist can be prevented from being damaged by flooding.

In the elevator apparatus according to the present invention, the car moving in the hoistway, the counterweight moving in the hoistway, the main rope suspending the car and the counterweight, and the main rope being wound In an elevator apparatus having a hoist that is hung and raises and lowers the car and the counterweight via the main rope,
A first turning pulley around which a portion from the car to the hoist is wound, and a second turning pulley around which a portion from the hoist to the counterweight of the main rope is wound. The rotating surface of at least one of the first turning pulley and the second turning pulley is disposed substantially vertically, and the hoist is inclined with respect to the horizontal direction to be inserted into the hoistway. Since they are arranged, the fleet angle can be reduced, and the life of the main rope or the like can be extended.

The elevator apparatus according to the present invention comprises a car moving in the hoistway, a counterweight moving in the hoistway, a main rope for suspending the car and the counterweight, and the main rope being wound. In an elevator apparatus having a hoist that is hung and raises and lowers the car and the counterweight via the main rope,
A first turning pulley around which a portion from the car to the hoist is wound, and a second turning pulley around which a portion from the hoist to the counterweight of the main rope is wound. Then, the hoist is disposed substantially horizontally in the hoistway, and a rotating surface of at least one of the first turning pulley and the second turning pulley is inclined with respect to a vertical direction. Since it is arranged in the hoistway, the fleet angle can be reduced, and the life of the main rope and the like can be extended.

The elevator apparatus according to the present invention is characterized in that a car moving in the hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope being wound In an elevator apparatus having a hoist that is hung and raises and lowers the car and the counterweight via the main rope,
A first turning pulley around which a portion from the car to the hoist is wound, and a second turning pulley around which a portion from the hoist to the counterweight of the main rope is wound. The hoist is disposed in the hoistway substantially horizontally or inclined with respect to the horizontal direction, and the hoist, the first turning pulley, and the second turning pulley are placed in the hoistway. Are arranged on a common mount provided in the main rope, so that the horizontal forces generated by the tension of the main rope can be canceled each other.

The hoist has a drive sheave around which the main rope is wound, and the drive sheave is connected to the upper or lower surface of the mounting base on the side where the car or the counterweight is located. And at least one of the first deflecting pulley and the second deflecting pulley is wrapped around the main rope with respect to the deflecting pulley on the opposite side. The installation space in the height direction of the turning pulley can be reduced.

Further, since both ends of the main rope are fixed to the mounting base, the tension applied to the main rope can be dispersed and supported.

[Brief description of the drawings]

FIG. 1 is a conceptual front view showing a first embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a cross-sectional plan view of a main part of FIG. 1;

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

FIG. 5 is a conceptual front view showing Embodiment 2 of the present invention.

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

FIG. 7 is a cross-sectional plan view of a main part of FIG. 5;

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

FIG. 9 is a conceptual front view showing Embodiment 3 of the present invention.

FIG. 10 is a cross-sectional plan view of a main part of FIG. 9;

FIG. 11 is a perspective view corresponding to FIG. 10;

FIG. 12 is a conceptual front view showing Embodiment 4 of the present invention.

FIG. 13 is a cross-sectional plan view of a main part of FIG. 12;

FIG. 14 is a perspective view corresponding to FIG.

FIG. 15 is a conceptual front view showing Embodiment 5 of the present invention.

FIG. 16 is a cross-sectional plan view of a main part of FIG. 15;

FIG. 17 is a perspective view corresponding to FIG. 16;

FIG. 18 is a conceptual front view showing Embodiment 6 of the present invention.

19 is a cross-sectional plan view of a main part of FIG. 18;

FIG. 20 is a diagram showing the relationship between the tension of the main rope and the axial force.

FIG. 21 is a conceptual front view showing Embodiment 7 of the present invention.

FIG. 22 is a cross-sectional plan view of a main part of FIG. 21;

FIG. 23 is a front view showing an eighth embodiment of the present invention.

24 is a cross-sectional plan view of a main part of FIG. 23.

FIG. 25 shows a drive sheave 6 in a conventional elevator apparatus.
The figure which shows the positional relationship with the counterweight turning side pulley 11.

FIG. 26 is a diagram showing the force acting on the main rope 12 and the side surface of the sheave groove.

FIG. 27 is a diagram showing a positional relationship between the drive sheave 6 and the counterweight turning-side pulley 11 in the present embodiment.

FIG. 28 is a relationship diagram between the inclination angle α of the hoisting machine 18 and the transition distance a2 of the main rope 12.

FIG. 29 is a front view showing a ninth embodiment of the present invention.

30 is a cross-sectional plan view of a main part of FIG. 29;

FIG. 31 is an essential part cross sectional plan view showing the tenth embodiment of the present invention.

FIG. 32 is a view showing a horizontal force when the hoisting machine 18 and the deflecting pulleys 10 and 11 are mounted on an integrated mount 25.

FIG. 33 is a view showing a vertical force when the hoisting machine 18 and the turning pulleys 10 and 11 are mounted on an integrated mount 25.

FIG. 34 shows a mounting stand 25, a hoisting machine 18, and a turning pulley 10, 1 when the drive sheave 6 is provided below the hoisting machine 18.
The figure which shows the installation space of 1 height direction.

FIG. 35 is a conceptual perspective view showing a conventional elevator device.

FIG. 36 is a cross-sectional plan view of a main part of FIG. 35;

[Explanation of symbols]

1 hoistway, 2 cars, 3 counterweights, 6 drive sheave, 10 car turning pulleys, 11 counterweight turning pulleys, 12 main ropes, 15 doorways, 17 retirement plane, 18
Hoisting machine, 20 hoisting machine, 21 drive motor, 22 main rope, 23 deflecting car, 24 balancing weight.

Claims (16)

[Claims] 1. A car that moves in a hoistway, a counterweight that moves in the hoistway, a main rope that suspends the car and the counterweight, and the main rope is wound around the main rope. And a hoist that raises and lowers the car and the counterweight through the elevator, wherein the hoist is disposed in the hoistway so as to be inclined with respect to the horizontal direction. . 2. The counterweight is disposed in a gap between the hoistway wall and the car, and the hoist is disposed above a gap in which the counterweight is disposed. 2. The elevator apparatus according to claim 1. 3. The hoist according to claim 1, wherein a part of the hoist overlaps the car in a vertical projection, another part is located between the car and a wall of the hoistway, and the part is the other part. The elevator apparatus according to claim 1, wherein the elevator apparatus is closer to a ceiling of the hoistway. 4. The hoist includes a drive sheave around which the main rope is wound, and the drive sheave is arranged to face a ceiling of the hoistway. 2. The elevator apparatus according to claim 1. 5. A first turning pulley around which a part of the main rope from the car to the hoist is wound, and a part of the main rope from the hoist to the counterweight is formed. A second turning pulley to be wound around, and a vertical projection of a portion from the first turning pulley to the hoist and a vertical projection of a portion from the hoist to the second pulley intersect with each other. The elevator apparatus according to claim 1, wherein: 6. The elevator apparatus according to claim 5, wherein the first turning pulley and the second turning pulley are disposed between the car and the hoistway wall in a vertical projection. 7. A first turning pulley around which a portion from the car to the hoist of the main rope is wound, and a portion of the main rope from the hoist to the counterweight in the main rope. A second turning pulley to be wound, and a main rope provided in the hoistway and extending from the first turning pulley to the hoist or a main rope extending from the second turning pulley to the hoist. The elevator apparatus according to claim 1, further comprising a deflector wheel for changing a direction. 8. The elevator apparatus according to claim 7, wherein a rotation surface of the first turning pulley or the second turning pulley is parallel to a wall of the hoistway. 9. The elevator apparatus according to claim 7, wherein the deflecting wheel is disposed at a top of the hoistway such that a rotation surface thereof is horizontal. 10. The elevator apparatus according to claim 5, wherein the first turning pulley, the second turning pulley, and the hoist are mounted on a common mount. 11. The elevator apparatus according to claim 10, wherein the mounting base is disposed at a top of the hoistway. 12. A car that moves in the hoistway, a counterweight that moves in the hoistway, a main rope that suspends the car and the counterweight, and the main rope is wound around the main rope. An elevator apparatus having a hoist that raises and lowers the car and the counterweight through the first deflecting pulley around which a portion from the car to the hoist is wound around the main rope; and A second turning pulley around which a portion from the hoist to the counterweight is wound around the main rope, and at least one turning pulley among the first turning pulley and the second turning pulley; An elevator apparatus, wherein a rotating surface of the hoisting machine is disposed substantially vertically, and the hoisting machine is disposed in the hoistway while being inclined with respect to a horizontal direction. 13. A car moving in a hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope is wound around the main rope. An elevator apparatus having a hoist that raises and lowers the car and the counterweight through the first deflecting pulley around which a portion from the car to the hoist is wound around the main rope; and A second turning pulley around which a portion from the hoisting machine to the counterweight is wound around the main rope, the hoisting machine is disposed substantially horizontally in the hoistway, and the first An elevator apparatus, wherein a rotating surface of at least one of the deflection pulley and the second deflection pulley is arranged in the hoistway so as to be inclined with respect to a vertical direction. 14. A car moving in the hoistway, a counterweight moving in the hoistway, a main rope suspending the car and the counterweight, and the main rope is wound around the main rope. An elevator apparatus having a hoist that raises and lowers the car and the counterweight through the first deflecting pulley around which a portion from the car to the hoist is wound around the main rope; and A second turning pulley around which a portion from the hoist to the counterweight is wound around the main rope, and the hoist is inclined substantially horizontally or horizontally with respect to the hoistway. An elevator apparatus wherein the hoisting machine, the first turning pulley, and the second turning pulley are arranged on a common mount provided in a hoistway. 15. The hoist includes a drive sheave around which the main rope is wound, and the drive sheave is mounted on the upper or lower surface of the mounting base on the side where the car or the counterweight is located. Wherein the main rope wraps around at least one of the first turning pulley and the second turning pulley on the opposite side. The elevator apparatus according to claim 14, 16. The elevator apparatus according to claim 14, wherein both ends of the main rope are fixed to the mounting table.