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
  • B66B11/0065—Roping
  • B66B11/007—Roping for counterweightless elevators
• • 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
  • B66B11/0095—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave where multiple cars drive in the same hoist way
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B1/00—Constructional features of ropes or cables
  • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
  • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B5/00—Making ropes or cables from special materials or of particular form
  • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
  • D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B1/00—Constructional features of ropes or cables
  • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
  • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2201/00—Ropes or cables
  • D07B2201/10—Rope or cable structures
  • D07B2201/1028—Rope or cable structures characterised by the number of strands
  • D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2205/00—Rope or cable materials
  • D07B2205/20—Organic high polymers
  • D07B2205/2046—Polyamides, e.g. nylons
  • D07B2205/205—Aramides
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2205/00—Rope or cable materials
  • D07B2205/30—Inorganic materials
  • D07B2205/3021—Metals
  • D07B2205/3025—Steel
• • D—TEXTILES; PAPER
  • D07—ROPES; CABLES OTHER THAN ELECTRIC
  • D07B—ROPES OR CABLES IN GENERAL
  • D07B2501/00—Application field
  • D07B2501/20—Application field related to ropes or cables
  • D07B2501/2007—Elevators

Definitions

• the present invention relates to a traction-type elevator apparatus that raises and lowers a car by a frictional force between a driving sheave of a driving device and a main measure for suspending the car.
• Japanese Patent Publication No. 7-55778 ⁇ shows a traction-type elevator device that secures traction capacity by using the weight of the car and the weight of the main measures and eliminates the counterweight. Have been.
• the counterweight guide rail for guiding the lifting of the counterweight can be omitted, and the plane dimension of the hoistway can be reduced.
• the present invention has been made to solve the above-described problems. Even when the head is relatively short, a counterweight can be omitted, and the plane dimension of the hoistway can be reduced. The purpose is to obtain an elevator that can be operated.
• An elevator apparatus includes a hoistway, a drive device having a drive sheave, a main measure wound around the drive sheave, and a main device suspended by the main measure, and the drive device moves up and down the hoistway.
• a resin-coated rope whose outer layer is made of a high-friction resin material on the outer periphery, traction performance is secured without using a counterweight. Things.
• the elevator apparatus includes a driving device having a hoistway and a driving sheave.
• the main measure wound around the drive sheave, and an upper cage suspended on one side of the drive sheave of the main measure and raised and lowered in the hoistway by the driving device.
• a resin coating port is used in which an outer layer coating made of a friction resin material is provided on the outer periphery, and the lower car that is raised and lowered in the hoistway by the driving device is located on the other side of the main drive sheave. It is suspended below the upper car so that it overlaps with the upper car on the vertical projection plane.
• FIG. 1 is a side view showing an elevator apparatus according to Embodiment 1 of the present invention
• Figure 2 is a cross-sectional view of the main measures in Figure 1,
• FIG. 3 is a side view showing an elevator apparatus according to Embodiment 2 of the present invention.
• FIG. 4 is a side view showing an elevator apparatus according to Embodiment 3 of the present invention.
• FIG. 5 is a plan view showing a main part of the elevator apparatus of FIG. 4,
• FIG. 6 is a side view showing an elevator apparatus according to Embodiment 4 of the present invention.
• FIG. 7 is a plan view showing a main part of the elevator apparatus of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
• FIG. 1 is a side view showing an elevator apparatus according to Embodiment 1 of the present invention.
• a machine room 2 is provided above the hoistway 1.
• a machine table 3 is fixed.
• a drive unit (hoist) 4 and a rotating deflector 5 are mounted on the machine base 3.
• a plurality of (only one is shown in FIG. 1) main measures 6 are wound around the c- drive sheave 4a having the drive sheave 4a and the deflector wheel 5.
• Each of the main measures 6 has a first end 6a and a second end 6b.
• a basket 8 is suspended via a rope shirt circle 7.
• the first end 6 a is connected to the upper portion of the car 8 via the rope shirt 7.
• a pair of car guide rails 9 for guiding the car 8 up and down are installed in the hoistway 1.
• a balancing rope 10 for compensating for the variation in weight balance of the main measure 6 depending on the position of the car 8 is connected.
• the balancing rope 10 is connected to the second end 6b via the connector 11.
• the number of the balancing ropes 10 may be different from the number of the main measures 6. Further, the balancing rope 10 here is in a broad sense, and may be, for example, a balancing chain.
• a tension pulley device 12 for applying tension to the main measure 6 and the balancing rope 10 is provided.
• the tension pulley device 12 has a tension pulley 12a around which the balancing rope 10 is wound, and a weight 12b.
• a plurality of upper shock absorbers 13 are provided in the upper part of the hoistway 1 to reduce the impact when the car 8 collides with the ceiling of the hoistway 1.
• a lower shock absorber (not shown) is provided at the bottom of the hoistway 1.
• the drive sheave 4a is provided with a plurality of rope grooves (not shown) into which the main measure 6 is inserted. Furthermore, the cross section of the main measure 6 is circular, and the cross-sectional shape of the bottom of the rope groove is semicircular. In other words, the rope groove is a U-shaped groove (round groove) without undercut. Furthermore, the main measure 6 is wound around the driving sheep 4a and the deflecting wheel 5 in a fully hanging manner.
• the winding angle of the main measure 6 around the drive sheave 4a (the total angle at which one main measure 6 is in contact with the drive sheave 4a) is 320 to 350 °.
• FIG. 2 is a cross-sectional view of the main measure 6 in FIG.
• the inner rope 21 has a core rope 22 and a plurality of inner layers ref 23 provided on the outer periphery of the core rope 22.
• the core rope 22 has a plurality of cores Ref 24.
• Each core ⁇ 24 is formed by twisting a plurality of steel wires 25 together.
• the core ply 24 is twisted with each other, and the inner layer nip 23 is twisted in the opposite direction to the core ply 24.
• the inner layer element 23 is formed by twisting a plurality of steel wires 26 with each other.
• the cross-sectional structure of the inner layer block 23 is a Warrington type (JISG 325).
• the outer periphery of the inner rope 21 is covered with a resin inner cover 27.
• the inner layer coating ⁇ is made of, for example, a polyethylene resin.
• An outer layer 28 is provided on the outer peripheral portion of the inner layer covering 27.
• the outer layer 28 has a plurality of outer layers 29.
• Each outer layer ply 29 is composed of a central strand 30 arranged at the center and six outer strands 31 arranged on the outer periphery of the central strand 30.
• the outer layer ply 29 is twisted in the opposite direction to the inner layer ply 23.
• the outer periphery of the outer layer 28 is covered with an outer layer covering 60.
• the outer layer cover 60 is made of a high friction resin material having a friction coefficient of 0.2 or more, for example, a polyurethane resin.
• the diameter of all strands 25, 26, 30, 31 is set to be 1/400 or less of the diameter of the sheave to which the main measure 6 is wound.
• the unit weight of the main measure 6 above is the same as the 12 ropes (8 X S (19)) used in general elevator equipment. Further, it is assumed that the weight of the balancing rope 10 is similar to that of the main measure 6, and the existence of the tension pulley device 12 is ignored. At this time,
• TR is the vertical stroke (lift).
• R When R is calculated, it can be applied when TR ⁇ 25m. That is, even if the head is relatively short, the counterweight can be omitted, and the hoistway
• the plane dimensions of 1 can be reduced.
• the tension pulley device 12 is ignored, but if the tension pulley device 12 is used and the weight of the weight 12b is twice the sum of the weight of the main measure 6 and the weight of the balancing rope 10, It can be applied at TR ⁇ 12.5 m.
• the safety factor is 10 or more, and the strength can be satisfied.
• the load torque and the brake torque acting on the driving device 4 become large.
• the diameter of the drive sheave 4a is reduced by using a resin-coated rope in which the outer layer coating body 60 made of a high friction resin material is provided on the outer periphery, thereby reducing the load torque and the load. An increase in brake torque can be suppressed.
• the balancing rope 10 is connected between the lower part of the car 8 and the second end 6b of the main measure 6, the length of the expensive main measure 6 can be reduced. Cost can be reduced.
• the upper shock absorber 13 is provided at the upper part in the hoistway 1, the impact when the car 8 collides with the ceiling of the hoistway 1 can be reduced.
• the balancing rope 10 is connected between the lower part of the car 8 and the second end 6b of the main measure 6, but the whole is constituted only by the main measure consisting of the resin-coated rope.
• the first end of the main measure may be connected to the upper part of the car, and the second end of the main measure may be connected to the lower part of the car. In this case, the number of parts can be reduced and installation can be facilitated.
• a resin-coated rope including a steel wire is used, but, for example, a rope main body including a synthetic fiber such as an aramid fiber and an outer layer covering made of a high friction resin material are provided. Synthetic fiber ropes may be used.
• FIG. 3 is a side view showing an elevator apparatus according to Embodiment 2 of the present invention.
• a plurality of (only one is shown in FIG. 3) main measures 32 are wound around the drive sheave 4 a and the deflector wheel 5.
• the main measure 32 has the same cross-sectional structure as that of FIG.
• Each measure 32 has a first end 32a and a second end 32b.
• the first end 3 2a is connected to a machine base 3 above the hoistway 1 via a rope shirt loop 33.
• the second end 32 b is connected to a fixed beam 35 at the bottom of the hoistway 1 via a rope shirt 34.
• an upper movable pulley 36 around which the main measure 32 is wound.
• a lower pulley 37 around which the main measure 32 is wound is provided below the car 8.
• Other configurations are the same as those of the first embodiment.
• FIG. 4 is a side view showing an elevator apparatus according to Embodiment 3 of the present invention.
• FIG. 5 is a plan view showing a main part of the elevator apparatus of FIG.
• a machine room 42 is provided above the hoistway 41.
• a machine stand 43 is fixed in the machine room 42.
• a drive unit (hoist) 44 and a rotatable deflecting wheel 45 are mounted on the machine base 43.
• the drive device 44 has a drive sheave 44a.
• a plurality of main measures 46 are wound around the drive sheep 44 a and the deflector wheel 45.
• Each of the main measures 46 has a first end 46a and a second end 46b.
• the main measure 46 has the same cross-sectional structure as that of FIG.
• an upper car 47 and a lower car 48 are arranged in the hoistway 41.
• the upper car 47 is suspended on one side of the drive sheave 44 a of the main measure 46. That is, the first end 46 a of the main measure 46 is connected to the upper part of the car 8 via the rope shirt clump 50.
• the second end 46 b of the main measure 46 is connected to the machine platform 43 above the hoistway 41 via a rope shirt cliff 51.
• the lower car 48 is disposed below the upper car 47 so as to overlap the upper car 47 in the vertical projection plane.
• a car suspension car device 49 is provided at the lower part of the lower car 48.
• the car suspension car device 49 has a pair of car suspension wheels (moving sheaves) 49 a and 49 b. A portion between the drive sheave 44a of the main measure 46 and the second end 46b is wound around the car suspension wheels 49a and 49b. That is, the lower basket 4 8 is the main policy
• the drive sheave 44 a is provided with a plurality of rope grooves (not shown) into which the main measures 46 are inserted. Furthermore, the cross section of the main measure 46 is circular, and the rope groove is a U-shaped groove (round groove) without undercut. Furthermore, the main measure 46 is wound around the drive sheave 44 a and the deflector wheel 45 in a full-hook manner. The winding angle of the main measure 46 around the drive chip 44a is 320 to 350 degrees.
• the upper cage 47 and the lower cage 48 are suspended by a 2: 1 roving method, and the lower cage 48 is one-half of the traveling distance of the upper cage 47. Because only 2 runs, the use is limited to some extent. But the lower basket
• the counterweight can be omitted irrespective of the lift, and the plane dimension of the hoistway 41 can be reduced.
• the upper cage 47 and the lower cage 48 have the same weight and the same capacity, if the upper cage 47 is full load (full) and the lower cage 48 is no load (empty), The balance is large, making it difficult to secure traction capabilities.
• the imbalance can be reduced by using a resin-coated rope in which the outer-layer covering body 60 made of a high-friction resin material is provided on the outer peripheral portion. Even if it is large, sufficient traction capacity can be secured.
• the lower car 48 is used in place of the counterweight while maintaining the traction capability in response to the load fluctuation of the lower car 48. be able to. Further, the diameter of the drive sheave 44a can be reduced, and the increase in load torque and brake torque can be suppressed.
• FIG. 6 is a side view showing an elevator apparatus according to Embodiment 4 of the present invention
• FIG. 7 is a plan view showing a main part of the elevator apparatus of FIG.
• a car suspension wheel device 49 is mounted below the lower car 48.
• the car suspension wheel device has a pair of rotatable first car suspension wheels 49a and 49b and a pair of rotatable second car suspension wheels 49c and 49d. .
• the car suspension wheels 49 a, 49 b, 49 c, and 49 d are rotatable about a rotation axis (not shown) extending along the depth direction of the lower car 48. Further, in the vertical projection plane, the first car suspension sheave 4 9 a, 4 9 b and second car suspension sheave 4 9 c 2 4 9 d, across the straight line connecting the pair of car guide rails 5 2 Are arranged symmetrically.
• a rotatable return wheel 53 is provided in the upper part of the hoistway 41.
• the return wheel 53 is supported by, for example, a car guide rail 52.
• the main measure 46 is, from the first end 46a, the drive sheave 44a, the deflector wheel 45, the drive sheave 44a, the deflector wheel 45, the first car suspension wheel 49a. , 49b, the return wheel 53, and the second car suspension wheel 49d, 49c in this order, leading to the second end 46b.
• Other configurations are the same as those of the third embodiment.
• the upper cage 47 and the lower cage 48 are suspended by a 4: 1 bing system, and the lower cage 48 functions in the same way as a conventional counterweight.
• the counterweight can be omitted irrespective of the lift, and the plane dimension of the hoistway 41 can be reduced.
• the friction coefficient // of the outer layer covering body 60 in Embodiments 3 and 4 is 0.3 or more.
• the main measure 46 is entirely mounted on the driving sieve 44a, but the present invention is not limited to this, and the weight and weight of the upper cage 47 and the lower cage 48 are reduced. Depending on the capacity, the coefficient of friction of the main measure 46, etc., either full or half can be selected as appropriate.
• the moving ranges of the upper car 47 and the lower car 48 are different.
• the moving range of the lower car 48 is from the first floor to the 20th floor
• the moving range of the upper car 47 is from the 21st floor to the top floor.
• it can be applied to a building that has a facility such as a restaurant on the 20th floor and an observation deck on the top floor.
• the moving range of the lower car 48 is smaller than the moving range of the upper car 47, but the moving range of the upper car 47 may be made larger.
• a lower car may be suspended at the first end of the main measure, a car suspension device may be mounted on the upper or lower part of the upper car, and the second end may be connected to the upper shaft.
• a car suspension device may be mounted on the upper or lower part of the upper car, and the second end may be connected to the upper shaft.

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=29606633

Family Applications (1)

Country Status (5)

Cited By (2)

Families Citing this family (1)

Citations (16)

Family Cites Families (1)

• 2002
  • 2002-05-30 CN CNB028114868A patent/CN1264740C/zh not_active Expired - Fee Related
  • 2002-05-30 JP JP2004509578A patent/JPWO2003101876A1/ja active Pending
  • 2002-05-30 WO PCT/JP2002/005304 patent/WO2003101876A1/ja active Application Filing
  • 2002-05-30 KR KR1020047000592A patent/KR100636870B1/ko not_active IP Right Cessation
  • 2002-05-30 EP EP02733257A patent/EP1508544A4/en not_active Withdrawn

Patent Citations (16)

Non-Patent Citations (1)

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