WO2002018257A1 - Elevator device - Google Patents

Abstract

An elevator device, wherein a drive device (9) is disposed horizontally at the inner upper part of a hoistway (1) so that the axis of a drive sheave (11) extends along a vertical direction, a cage side direction reversing wheel (17) leading a main rope (12) from the drive sheave (11) to a cage (4) and a balance weight side direction reversing wheel (18) leading the main rope (12) from the drive sheave (11) to the balance weight (5) are disposed at the inner upper part of the hoistway (1), and the cage side direction reversing wheel (17) is disposed so that the main rope (12) extends in parallel with the frontage direction of the cage between the cage side direction reversing wheel (17) and the drive sheave (11).

Description

 Description Elevator overnight device

Technical field

 The present invention relates to an elevator apparatus in which a drive device is disposed in an upper part of a hoistway. Background art

 Conventionally, for example, Japanese Patent Laid-Open Publication No. Hei 10-1393932 discloses an elevator system in which a driving device is disposed above a hoistway without a machine room above the hoistway. Suelebe overnight is shown. With such an elevator device, the height of the building can be made lower than when a separate machine room is provided above the hoistway, but with the conventional structure, the return vehicle and the drive unit are changed according to changes in the car dimensions. The position of the drive sheep had to be adjusted at the design stage, and the installation work was not easy. Disclosure of the invention

 The present invention has been made to solve the above-described problems, and can easily cope with a change in the width of a car while efficiently utilizing the space in the hoistway. The purpose is to obtain an easy elevator system.

The elevator apparatus according to the present invention is provided with a hoistway, a pair of car guide rails and a pair of counterweight guide rails installed in the hoistway, and a hoistway for raising and lowering the hoistway. A car, a counterweight which is guided by a counterweight guide rail and ascends and descends in the hoistway, a driving device main body disposed at an upper portion in the hoistway, and a driving sheave rotated by the driving device main body. And a drive unit for raising and lowering the car and the counterweight, and a main rope wound around the drive sheave and suspending the car and the counterweight in the hoistway. Are arranged so that their axes extend along the vertical direction.In the upper part of the hoistway, a car-side turning vehicle that guides the main rope from the drive sheave to the car, and a counterweight from the drive sheave And a counterweight weight return vehicle that guides the main rope to And the car turning wheel is arranged so that the main rope extends in parallel with the car frontage direction between the car turning wheel and the drive sheave. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is a schematic plan view showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a main part taken along line II-II of FIG.

 FIG. 3 is a cross-sectional view of a main part along the line I I I—I I I of FIG. 1,

 FIG. 4 is a perspective view showing the structure of the main rope of FIG. 1,

 FIG. 5 is a schematic plan view showing an elevator apparatus according to Embodiment 2 of the present invention, FIG. 6 is a cross-sectional view of a main part along line VI-VI in FIG. 5,

 FIG. 7 is a schematic plan view showing an elevator apparatus according to Embodiment 3 of the present invention. FIG. 8 is a cross-sectional view of a main part taken along line VIII-VIII of FIG.

 FIG. 9 is a cross-sectional view of a main part along line IX-IX in FIG. BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1

 FIG. 1 is a schematic plan view showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a main part along line II-II in FIG. 1, and FIG. 3 is a line III-III in FIG. It is principal part sectional drawing in alignment with.

 In the figure, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1. The car 4 is guided up and down the hoistway 1 by the car guide rail 2. The counterweight 5 is arranged behind the car 4 and is guided by the counterweight guide rail 3 to be raised and lowered in the hoistway 1.

A mounting frame 6 is fixed near the upper ends of the car guide rail 2 and the counterweight guide rail 3. Mounting frame 6, on _c mounting frame 6 and a plurality of beams 7 and a plurality of vibration-proof rubber 8, drive 9 for raising and lowering the car 4 and the counterweight 5 is that is equipped. The driving device 9 has a driving device main body 10 including a motor and a brake, and a driving sheave 11 rotated by the driving device main body 10. The drive unit 9 is —Bub 1 It is arranged horizontally so that the axis of 1 extends along the vertical direction.

 A plurality of (only one is shown in the figure) main ropes 12 around which the car 4 and the counterweight 5 are suspended in the hoistway 1 are wound around the drive sheave 11. One end of the main rope 12 is connected to the mounting frame 6 via a counterweight side cleat 13. The other end of the main rope 12 is connected to a mounting frame 6 via a car-side cleat 14.

 At the lower part of the car 4, a pair of car suspension wheels 15 around which the main ropes 12 are wound are provided. Above the counterweight 5, a counterweight suspension wheel 16 around which the main rope 12 is wound is provided.

 On the mounting frame 6, a rotatable car side return wheel 17 that guides the main rope 1 2 from the drive sheave 11 to the car 4 and a rotation that guides the main rope 1 2 from the drive sheep 11 to the counterweight 5. A free balancing weight-turning wheel 18 is mounted. These return wheels 17 and 18 are arranged such that their axes extend along the horizontal direction. The car-side turning wheel 17 is arranged so as to overlap with the car 4 in the vertical projection plane.

 One end of the main rope 1 2 is connected to the counterweight side cleat 13, the counterweight suspension wheel 16, the counterweight return wheel 18, the drive sheave 11, the car side return wheel 17, The car is suspended in the order of the car suspension wheel 15, and the other end is connected to the car-side cleat 14.

 The car turning wheel 17 is arranged between the car turning wheel 17 and the drive sheave 11 so that the main ropes 12 extend in parallel with the frontage direction of the car 4 (the left-right direction in FIG. 1). ing. Further, the main rope 12 is arranged such that the portion extending from the drive sheave 11 to the counterweight return wheel 18 is inclined with respect to the portion extending from the drive sheave 11 to the car return wheel 17. Have been. Furthermore, the winding angle of the main rope 12 around the drive sheave 11 is preferably from 130 ° to 180 °.

 Further, between the car turning wheel 17 and the driving sheave 11, the main ropes 12 are arranged in parallel with a center line C connecting the car guide rails 2 at an interval. This interval is preferably 30 Omm or less.

FIG. 4 is a perspective view showing the structure of the main rope 12 of FIG. In the figure, an inner strand layer 24 having a plurality of inner strands 22 and a filling strand 23 arranged in a gap between the inner strands 22 is arranged around the core wire 21. Has been done. Each of the inner strands 22 is composed of a plurality of aramide fibers and polyurethane. It is composed of an impregnating material. The filling strand 23 is made of, for example, polyamide.

 An outer strand layer 26 having a plurality of outer strands 25 is arranged on the outer periphery of the inner strand layer 24. Each outer strand 25, like the inner strand 22, is composed of a plurality of aramide fibers and an impregnating material such as polyurethane.

 Between the inner strand layer 24 and the outer strand layer 26, in order to avoid abrasion of the strands 22 and 25 due to friction between the strands 22 and 25 of the sheave of the drive sheave 11 etc. Are provided. Further, a protective coating layer 28 is arranged on the outer periphery of the outer strand layer 26. Such synthetic and fiber ropes have a higher coefficient of friction and are more flexible than steel ropes. In such an elevator system, the driving device 9 is horizontally arranged so that the axis of the driving sheave 11 extends in the vertical direction, and the driving sheave is provided in the upper part of the hoistway. 1 A car side turning wheel 17 that guides the main rope 1 2 from 1 to the car 4 and a balancing weight side turning wheel 18 that guides the main rope 1 2 from the driving sheave 1 1 to the balancing weight 5 are arranged. Therefore, the space inside the hoistway 1 can be efficiently used, and the height of the hoistway 1 can be reduced.

 In addition, since the car turning wheel 17 is arranged so that the main ropes 12 extend in parallel with the frontage direction of the car 4 between the car turning wheel 17 and the drive jeep 11, the car 4 It is easy to respond to changes in frontage dimensions. Furthermore, it is possible to easily cope with a change in the depth dimension of the car 4 only by changing the angle of the counterweight return wheel 18. Therefore, the installation work is easy and the equipment can be standardized.

 Furthermore, since the main rope 12 is made of a synthetic fiber rope having a high coefficient of friction and excellent flexibility, the diameter of the drive sheave 11 and the return wheels 17 and 18 can be reduced. Therefore, these installation spaces can be reduced. Therefore, the space in the hoistway 1 can be more efficiently used, and the height of the hoistway 1 can be reduced.

Furthermore, the drive 9 is arranged horizontally with the drive sheave 11 up. Therefore, maintenance work for the drive device body 10 such as a brake can be easily performed from the car 4, and workability can be improved. Further, the height required for installing the driving device 9 and the return wheels 17 and 18 can be reduced.

 In addition, the use of the vibration isolating rubber 8 for the mounting frame 6 can prevent noise caused by the vibration of the driving device 9 and the return wheels 17, 18 from being transmitted to the building via the guide rails 2, 3. . Embodiment 2

 Next, FIG. 5 is a schematic plan view showing an elevator apparatus according to Embodiment 2 of the present invention, and FIG. 6 is a cross-sectional view of a principal part along line VI-VI of FIG. In the figure, the counterweight 5 is arranged on the side of the car 4. Accordingly, the counterweight turning wheel 18 is disposed above the side of the car 4. The counterweight turning wheel 18 is arranged such that its axis extends in parallel with the axis of the car-side turning wheel 17. As a result, the main cable 12 extends parallel to the portion extending from the drive sheave 11 to the car return wheel 17 in parallel with the portion extending from the drive sheave 11 to the counterweight return wheel 18. It is arranged so that it becomes. Other configurations are the same as those of the first embodiment.

 Even with such an elevator apparatus, the space in the hoistway 1 can be efficiently used, and the height of the hoistway 1 can be reduced. In addition, it is possible to easily cope with a change in the width dimension and the depth dimension of the car 4. Therefore, the installation work is easy and the equipment can be standardized. Embodiment 3.

 Next, FIG. 7 is a schematic plan view showing an elevator apparatus according to Embodiment 3 of the present invention, FIG. 8 is a cross-sectional view of a main part along line VIII-VIII in FIG. 7, and FIG. -It is a fragmentary sectional view along the line IX.

 In the figure, the counterweight 5 is located behind the car 4. In the upper part of the hoistway 1, a rotatable deflector 31 is arranged. The deflector car 3 1 has a drive system

—The main rope 1 2 is wound around the bridge 1 1 and the counterweight return wheel 18. Deflector car 31 is arranged so that its axis extends along the vertical direction. The main rope 12 is arranged so that a portion extending from the drive sheave 11 to the deflector 31 is parallel to a portion extending from the drive sheave 11 to the car side turning wheel 17. I have. Other configurations are the same as those of the first embodiment.

 Even with such an elevator apparatus, the space in the hoistway 1 can be efficiently used, and the height of the hoistway 1 can be reduced. Further, it is possible to easily cope with a change in the frontage size and the depth size of the car 4 only by changing the size of the mounting frame 6. That is, for the elevator apparatus in which the counterweights 5 are arranged behind the car 4, the layout can be shared regardless of the dimensions of the car 4. Therefore, the installation work is easy and the equipment can be standardized.

 Furthermore, by providing a deflecting wheel 31 between the driving sheep 11 and the counterweight turning wheel 18, the winding of the main rope 12 around the driving sheep 11 regardless of the size of the car 4. The attachment angle can be kept constant.

 In the elevator apparatus having the layout described in Embodiments 1 to 3, it is possible to use a main rope made of a steel spout, but it is made of a synthetic fiber spout as described above. By using the main rope, space can be effectively saved, which is particularly preferable.

Claims

The scope of the claims 1. The hoistway,  A pair of cage guide rails and a pair of counterweight guide rails installed in the hoistway;  A car that is guided by the car guide rails and moves up and down in the hoistway; a counterweight that is guided by the counterweight guide rails and moves up and down in the hoistway; A driving device main body, and a driving sheep rotated by the driving device main body, a driving device for raising and lowering the car and the counterweight, and  A main rope wound around the drive sheave and suspending the car and the counterweight in the hoistway  And an elevator device equipped with  The driving device is arranged so that an axis of the driving sheave extends along a vertical direction, and a car turning wheel that guides the main rope from the driving sheave to the car is provided at an upper portion in the hoistway. A counterbalance weight return vehicle that guides the main rope from the drive sheave to the counterweight is disposed, and the car return vehicle is between the car return vehicle and the drive sheave. An elevator apparatus in which the main ropes are arranged so as to extend in parallel with the frontage direction of the car. 2. The elevator apparatus according to claim 1, wherein the car-side turning wheel is arranged so as to overlap with the car in a vertical projection plane. 3. The elevator apparatus according to claim 1, wherein the driving device is horizontally disposed such that the driving sheave is located upward. 4. The elevator apparatus according to claim 1, wherein a winding angle of the main rope around the driving sheave is from 130 ° to 180 °. 5. The elevator according to claim 1, wherein the main rope is disposed in parallel with the center line connecting between the car guide rails between the car side turning wheel and the drive sheave. Overnight equipment. 6. The main ropes are arranged in parallel with the center line connecting between the car guide rails at a distance of 300 mm or less between the car turning wheel and the drive sheave. Item 1. The elevator device according to Item 1. 7. The counterweight is disposed at the rear of the car, and the main rope extends from the drive sheave to the car-side turnover from the drive sheave to the counterweight-side turnover. 2. The device of claim 1, wherein a portion extending to the side is inclined. 8. The counterweight is disposed on the side of the car, and the main rope is provided from the drive sheave to the counterweight for a portion extending from the drive sheave to the car-turning wheel. 2. The elevator device according to claim 1, wherein portions extending to the side turner are arranged in parallel. 9. The vehicle further comprises a deflector wheel disposed at an upper portion in the hoistway so that an axis extends along the vertical direction, and the main rope is wound around the drive sheave and the counterweight return wheel. The elevator apparatus according to claim 1, wherein 10. The counterweight is disposed behind the car, and the main rope extends from the drive sheave to the deflecting wheel with respect to a portion extending from the drive sheave to the car-side turnover. The elevator apparatus according to claim 9, wherein the portions are arranged in parallel. 11. The elevator apparatus according to claim 1, wherein the main rope is made of a synthetic fiber rope.