Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
  • B66B11/04—Driving gear ; Details thereof, e.g. seals
  • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B7/00—Other common features of elevators
  • B66B7/06—Arrangements of ropes or cables
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
  • B66B11/0035—Arrangement of driving gear, e.g. location or support
  • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
  • B66B11/0065—Roping
  • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

• the present invention relates to an elevator apparatus in which a drive device is disposed in an upper part of a hoistway.
• a drive unit and a control panel are arranged, for example, between a hoistway wall and a car. Further, for example, in a machine room-less elevator described in Japanese Patent Application Laid-Open No. 10-139321, a thin drive device is disposed at an upper portion in a hoistway.
• the present invention has been made to solve the above-described problems, and has an object to obtain an elevator apparatus that can simplify a configuration and can make a hoistway compact.
• An elevator apparatus includes a hoistway, a drive unit disposed in an upper part of the hoistway, and a drive unit rotated by the drive unit body about a rotation axis extending in a vertical direction.
• a main rope group wound around the drive sheave, and a main rope group suspended in the hoistway, and the drive unit moves up and down the hoistway.
• Car and a counterweight, and the car is placed so that the car is sandwiched in the vertical projection plane.
• the first and second main cable connections are provided, and the first and second car turners are located above the first and second main cable connections in the hoistway.
• the main rope group includes a first main rope connected to a first main rope connection portion connected to a first car return wheel, and a second main rope connected to a second car return wheel.
• a second main rope connected to the main rope connection, and the driving device, and the first and second car-turning wheels are positioned above the car so as to overlap with the car in the vertical projection plane.
• the elevator apparatus is a hoistway, a drive unit disposed at an upper part of the hoistway, and driven by the drive unit body about a rotation axis extending along a vertical direction.
• a drive device having a sheave, a main rope group wound around the drive sheave, and a car and a counterweight suspended from the hoistway by the drive device and suspended in the hoistway by the main rope group.
• the first and second counterweight return wheels are disposed above the counterweight in the hoistway, and the main ropes are connected to the first counterweight return wheel.
• the installation height of the first and second counterweight return wheels is the first and second withdrawal from the drive sheave. They are different from each other depending on the height of the search.
• a drive device and a drive sheave disposed at an upper portion in the hoistway, a drive device main body, and a drive sheave that is rotated by the drive device main body around a rotation axis extending in a vertical direction.
• a car and a counterweight are suspended in the hoistway by the main rope group and the main rope group that are wound, and are lifted and lowered in the hoistway by the drive device.
• the first and second counterweight side turnovers are disposed above the main line, and the main rope group is wound around the first counterweight side turnover and connected to the counterweight. 1 and a second main rope connected to a second main cable connection portion wound around a second counterbalance weight reverse wheel, and a first and a second counterbalance.
• FIG. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention
• FIG. 2 is a plan view showing the structure above the hoistway of FIG. 1,
• FIG. 3 is a plan view showing a main part of the elevator apparatus of FIG. 1,
• FIG. 4 is a plan view showing a main part of an elevator apparatus according to Embodiment 2 of the present invention
• FIG. 5 is a front view showing the first and second counterweight turning wheels of FIG. 4,
• FIG. 6 is a plan view showing a main part of an elevator apparatus according to Embodiment 3 of the present invention
• FIG. 7 is a cross-sectional view of the first and second counterweight turning wheels of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
• FIG. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention
• FIG. 2 is a plan view showing a structure above a hoistway in FIG. 1
• FIG. 3 is a view showing the elevator apparatus in FIG. It is a top view which shows a principal part.
• 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 car 4 has a car frame 5 and a car room 6 supported by the car frame 5.
• the car frame 5 is composed of a pair of vertical frames 7, a lower frame 8 fixed between lower ends of the vertical frames 7 and supporting a car room 6, and an azusa 9 fixed between upper ends of the vertical frames 7. Yes.
• the lower frame 8 is provided with first and second main cable connecting portions 11 and 12.
• the second main rope connecting portion first ⁇ beauty 1 1, 1 2, i.e. c are arranged symmetrically with respect to the center of gravity of the car 4, as shown in FIG. 3, the first main rope connecting portion 1 1 Is located behind a straight line C connecting the centers of the pair of car guide rails 2, and the second main rope connecting portion 12 is located ahead of the straight line C.
• the counterweight 13 is guided by the counterweight guide rail 3 and moved up and down in the hoistway 1. Further, the counterweight 13 is disposed behind the car 4 when viewed from the landing side.
• a mounting frame 14 is arranged at the upper part in the hoistway 1.
• the mounting frame 14 is fixed to the upper ends of the car guide rail 2 and the counterweight guide rail 3.
• Mounting frame 1 4 is provided with a driving device (winding machine) 15 for raising and lowering the car 4 and the counterweight 13.
• the driving device 15 has a driving device main body 16 and a driving sheave 17 rotated by the driving device main body 16. Further, the driving device 15 is arranged horizontally so that the rotation axis of the driving chip 17 extends vertically.
• the drive unit main body 16 has a thin motor whose axial dimension is smaller than the diameter.
• the mounting frame 14 is equipped with the first and second car side turning wheels 18 and 19, the counterweight turning wheel 20, and the direction change pulley 21.
• the first car side turning wheel 18 is arranged above the first main rope connecting portion 11 such that its rotation axis extends horizontally along the depth direction of the car 4 (vertical direction in FIG. 3).
• the second car-side turning wheel 19 is arranged above the second main rope connecting portion 12 such that its rotation axis extends horizontally along the depth direction of the car 4 (the vertical direction in FIG. 3). ing.
• the counterweight return wheel 20 is disposed above the counterweight 13 such that its rotation axis extends horizontally.
• the driving device 15, the first and second car return wheels 18 and 19, the counterweight return wheel 20 and the direction change pulley 21 overlap the car 4 in the vertical projection plane. And above the basket 4.
• the drive sheave 17 is wound with a main rope group 22 that suspends the car 4 and the counterweight 13 in the hoistway 1.
• the main rope group 22 has a plurality of first main ropes 23 and a plurality of second main ropes 24.
• the number of the first main ropes 23 and the number of the second main ropes 24 are the same.
• first and second main ropes 23 and 24 for example, a highly flexible composite material rope having a resin coating is used. As a result, the diameters of the drive sheave 17, the first and second car side return wheels 18, 19, the counterweight side return wheel 20, and the direction change pulley 21 can be reduced.
• the first main rope 23 has a first end connected to the first main rope connection portion 11 and a second end connected to the upper part of the counterweight 13. ing.
• the second main rope 24 has a first end connected to the second main rope connection 12, and a second end connected to the upper part of the counterweight 13. I have.
• the first main rope 2 3, from the first end, the first car turnover 18, the drive sheave 1 7, and the counterweight side turning wheel 20 are wound around in this order, reaching the second end.
• the second main rope 24 is arranged in the order of the second car side turning wheel 19, the direction change pulley 21, the drive sheave 17, and the counterweight side turning wheel 20. Wrapped around to the second end.
• first main cable 23 and the second main cable 24 connected to the counterweight 13 are branched in two directions by the drive sheave 24 and connected to the car 4.
• control panel 25 for controlling devices such as a drive unit 15 is mounted on the mounting frame 14.
• Drive unit 15, 1st and 2nd car side return wheels 18 and 19, counterweight side return wheel 20, direction change pulley 21 and control panel 25 are mounted on a common mounting frame 14. They are united.
• the direction change pulley 21 is arranged substantially horizontally, the rotation axis of the direction change pulley 21 is slightly inclined with respect to the vertical direction so that the approach angle of the second main rope 24 is as small as possible. Have been.
• the main cable group 22 is divided into the first and second main cables 23, 24, and the first and second main cables 22 are arranged symmetrically with respect to the center of gravity of the car 4. Since the main rope connecting portions 11 and 12 are used to suspend the car, the car 4 can be suspended stably at its center of gravity. As a result, the reaction force due to the unbalanced load is prevented from acting on the car guide rail 2, and the riding comfort can be improved.
• first and second main cable connecting portions 11 and 12 are arranged in the lower frame 8 of the car 4, it is necessary to provide a connecting portion of the main cable group 22 at the upper part of the car 4. Absent. Therefore, the size of the upper part of the car 4 can be reduced, and the increase in the height of the hoistway 1 can be suppressed while the driving device 15 is arranged in the upper part of the hoistway 1.
• the configuration is simplified, and the rotation speed of the drive unit 15 can be suppressed to a low level. For this reason, even if the drive device 15 is arranged in the hoistway 1, a quiet vibration and low-noise elevator device can be provided.
• the plane area of the hoistway 1 can be made small and the hoistway 1 can be made compact.
• first and second car turners 18 and 19 are arranged parallel to each other on both sides of a straight line C connecting the pair of car guide rails 2, the mounting frame 14 and the guide rails 2 are provided. , 3 can evenly apply the load, and can stabilize the structure.
• the first and second car side-turning wheels 18, 19 have their rotating shafts in the depth of the car 4. Since it is arranged so as to extend horizontally along the direction (vertical direction in FIG. 3), the configuration can be simplified and the assembly can be facilitated.
• FIG. 4 is a plan view showing a main part of an erepeater device according to a second embodiment of the present invention.
• the car 4 has first and second side faces 4a and 4b facing each other.
• the car 4 has first and second corners 4c and 4d that are diagonal to each other.
• first and second car guide rails 3 1, 3 2 are provided to guide the car 4 up and down.
• the first car guide rail 31 is fixed to the first hoistway wall 1a of the hoistway 1 so as to face the first corner 4c.
• the second car guide rail 32 is fixed to the second hoistway wall 1b opposite to the first hoistway wall 1a so as to face the second corner 4d. Therefore, the engaging portions (guide shows) of the car 4 with the car guide rails 31 and 32 are arranged at the first and second corners 4c and 4d.
• the lower frame 8 of the car 4 is provided with first and second main cable connections 33, 34 c.
• the first and second main cable connections 33, 34 are They are arranged symmetrically with respect to the center of gravity. That is, the first main cable connecting portion 33 is disposed at the first corner 4c, and the second main cable connecting portion 34 is disposed at the second corner 4d.
• the mounting frame 14 (Fig. 1) arranged at the upper part of the hoistway 1 has first and second car side return wheels 35, 36, and first and second counterweight return side wheels 3 7, 38, and direction change pulley 39 are installed.
• the first car-side turning wheel 35 is disposed above the first main cable connecting portion 33 so that the rotation axis thereof extends horizontally.
• the second car-side turning wheel 36 is disposed above the second main rope connecting portion 34 so that the rotation axis thereof extends horizontally.
• the first and second counterweight return wheels 37, 38 are arranged above the counterweight 13 such that their rotation axes extend horizontally.
• the driving device 15, the first and second car side return wheels 35, 36, the first and second counterweight return wheels 37, 38, and the direction change pulley 39 are It is arranged above the car 4 so as to overlap with the car 4 in the vertical projection plane.
• the drive sheave 17 is wrapped around a main rope group 22 that suspends the car 4 and the counterweight 13 in the hoistway 1.
• the main rope group 22 has a plurality of first main ropes 23 and a plurality of second main ropes 24.
• the number of the first main ropes 23 and the number of the second main ropes 24 are the same.
• the first main rope 23 has a first end connected to the first main rope connection 33, and a second end connected to the upper part of the counterweight 13. ing.
• the second main rope 24 has a first end connected to the second main rope connection part 34 and a second end connected to the upper part of the counterweight 13. I have.
• the first main rope 23 is wound from the first end in the order of a first car side turning wheel 35, a driving sheep 17 and a first counterweight side turning wheel 37, It reaches the end of 2. From the first end, the second main rope 24 is connected to the second car side turning wheel 36, the direction change pulley 39, the drive sheave 17, and the second balancing weight side turning wheel 3. It is wound in the order of 8, leading to the second end.
• the direction changing pulley 39 is arranged substantially horizontally, the rotation axis of the direction changing pulley 39 is slightly inclined with respect to the vertical so that the approach angle of the second main rope 24 is as small as possible. Have been.
• FIG. 5 is a front view showing the first and second counterweight return wheels 37, 38 of FIG.
• the installation height of the first and second counterweight reversing wheels 37, 38 is determined by the drive sheave.
• the first and second main ropes 23, 24 drawn from 17 differ from each other in accordance with the height.
• the main cable group 22 is divided into the first and second main cables 23, 24, and the first and second main cables 22 are arranged symmetrically with respect to the center of gravity of the car 4. Since the main rope connecting portions 33 and 34 are used, the car 4 can be hung at the center of gravity stably. As a result, the reaction force due to the unbalanced load is prevented from acting on the car guide rails 3 1 and 3 2, and the riding comfort can be improved.
• first and second main cable connecting portions 33, 34 are arranged in the lower frame 8 of the car 4, it is necessary to provide a connecting portion of the main cable group 22 at the upper part of the car 4. Absent. Therefore, the size of the upper part of the car 4 can be reduced, and the increase in the height of the hoistway 1 can be suppressed while the driving device 15 is arranged in the upper part of the hoistway 1.
• the configuration is simplified, and the rotation speed of the drive unit 15 can be suppressed to a low level. For this reason, even if the drive device 15 is arranged in the hoistway 1, it is possible to provide a quiet vibration-elevator device with low vibration and low noise.
• the driving device 15, the first and second car side turnovers 35, 36, the first and second counterweight side turnovers 37, 38, and the direction change pulley 39 are provided.
• the plane area of the hoistway 1 can be reduced, and the hoistway 1 can be made compact.
• first main cable connecting portion 33 is disposed at the first corner 4c
• second main cable connecting portion 34 is disposed at the second corner 4d.
• the main cable connection portions 33, 34 of the car 4 can be arranged within the exterior dimensions of the car 4, and the plane area of the hoistway 1 can be reduced.
• the engaging portion of the car 4 with the car guide rails 31 and 32 is also located at the first and second corners 4c, so that the engaging portion does not protrude from the car 4 and the hoistway 1) The flat area can be reduced.
• the installation height of the first and second counterweight weight return wheels 37, 38 is determined by the height of the first and second main ropes 23, 24 drawn from the drive sheave 17. Therefore, the angle of entry of the main ropes 23 and 24 into the drive sheave 17 can be reduced, and uneven wear of the drive sheave 17 and main ropes 2 can be reduced. Prevent wear of 3, 24 Can be.
• the difference between the heights of the first and second counterweight weight return wheels 37, 38 is as follows if the main ropes 23, 24 are one by one. What is necessary is just to keep the dimension between centers. If the main ropes 23 and 24 are two by two, the distance between the centers of the adjacent main ropes 23 and 24 should be twice as large. That is, the maximum value of the approach angle of the plurality of main ropes may be reduced as much as possible. Further, it is desirable that the angle of approach of the main ropes 23, 24 to each of the sheaves 17, 35 to 39 is set within 1.5 degrees.
• FIG. 6 is a plan view showing a main part of an elevator apparatus according to Embodiment 3 of the present invention.
• the counterweight 13 is arranged on the side of the car 4 so as to face the first side surface 4a of the car 4.
• the first main rope connecting portion 33 is disposed at the second corner 4d
• the second main rope connecting portion 34 is disposed at the first corner 4c. Have been.
• the first car-side turning wheel 35 is disposed above the first main cable connecting portion 33.
• the second car-side turning wheel 36 is disposed above the second main cable connecting portion 34.
• first and second counterweight side return wheels 41, 42 are arranged above the counterweight 13 above the counterweight 13 above the counterweight 13 above the counterweight 13 above the counterweight 13, first and second counterweight side return wheels 41, 42 are arranged.
• the drive unit 15, the first and second car-side return wheels 35, 36, the first and second counterweight return wheels 41, 42, and the direction change pulley 39 are arranged vertically. It is arranged above the car 4 so as to overlap with the car 4 in the projection plane.
• FIG. 7 is a sectional view of the first and second counterweight return wheels 41, 42 of FIG. No.
• the first and second counterweight reversing wheels 4 1, 4 2 have a common rotating shaft 4 arranged horizontally.
• the diameters of the first and second counterweight reversing wheels 4 1, 4 2 are the first and second main ropes 2 3 drawn out of the drive sheave 17:
• the diameter of the first and second counterweight return wheels 41, 42 is determined by the height of the first and second main ropes 23, 24 drawn from the drive sheave 17. Therefore, the angle of entry of the main ropes 23 and 24 into the drive sheave 17 can be reduced. Further, a common rotating shaft 43 can be used, and the configuration can be simplified.
• two counterweight return wheels 41, 42 are used, but three or more counterweight wheels may be used.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=27773216

Family Applications (1)

Country Status (5)

Cited By (12)

Families Citing this family (5)

Citations (6)

Family Cites Families (2)

• 2002
  • 2002-03-01 WO PCT/JP2002/001927 patent/WO2003074409A1/ja active Application Filing
  • 2002-03-01 CN CNB02806528XA patent/CN1232435C/zh not_active Expired - Fee Related
  • 2002-03-01 KR KR10-2003-7013476A patent/KR100524105B1/ko active IP Right Grant
  • 2002-03-01 EP EP02702720A patent/EP1481935A4/de not_active Withdrawn
  • 2002-03-01 JP JP2003572889A patent/JP4110096B2/ja not_active Expired - Fee Related

Patent Citations (6)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events