EP1357075B1 - Cage device for double deck elevators - Google Patents
Cage device for double deck elevators Download PDFInfo
- Publication number
- EP1357075B1 EP1357075B1 EP00974827A EP00974827A EP1357075B1 EP 1357075 B1 EP1357075 B1 EP 1357075B1 EP 00974827 A EP00974827 A EP 00974827A EP 00974827 A EP00974827 A EP 00974827A EP 1357075 B1 EP1357075 B1 EP 1357075B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- car
- main frame
- lower car
- pulley
- upper car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- 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
- B66B11/02—Cages, i.e. cars
- B66B11/0206—Car frames
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- 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
- B66B11/02—Cages, i.e. cars
- B66B11/0206—Car frames
- B66B11/0213—Car frames for multi-deck cars
- B66B11/022—Car frames for multi-deck cars with changeable inter-deck distances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
Definitions
- the present invention relates to a car apparatus for a double-deck elevator in which an upper car and a lower car are supported by a main frame raised and lowered in a hoistway.
- Fig. 6 is a block diagram showing a conventional car apparatus for a double-deck elevator such as disclosed, for example, in Japanese Patent Application Laid-Open No. Sho 48-76242 .
- a pair of guide rails 2a and 2b are provided in a main frame 1 which is raised and lowered in a hoistway.
- An upper car 3 and a lower car 4 are supported by the main frame 1 and raised and lowered along the guide rails 2a and 2b in the main frame 1. Because of this, the distance between the upper car 3 and the lower car 4 can be adjusted.
- Rotatable first and second sprockets 5 and 6 are disposed at the upper portion of the main frame 1 and spaced from one another in a horizontal direction.
- First and second chains 7 and 8 are wound around the first and second sprockets 5 and 6.
- First end portions of the first and second chains 7 and 8 are connected to the upper car 3, and second end portions of the first and second chains 7 and 8 are connected to the lower car 4. That is, the upper car 3 and the lower car 4 are suspended by the first and second chains 7 and 8.
- Third and fourth sprockets 9 and 10 that rotate with the first and second sprockets 5 and 6 are fixed to the axles of the first and second sprockets 5 and 6.
- a rotatable fifth sprocket 11 is disposed at the main frame 1 in the vicinity of the fourth sprocket 10.
- a car position adjusting driving machine 12 for changing the distance between the upper car 3 and the lower car 4 by raising and lowering the upper car 3 and the lower car 4 is mounted to the upper end portion of the main frame 1.
- the car position adjusting driving machine 12 has a car position adjusting driving sprocket 13.
- a loop-like third chain 14 is wound around the third to fifth sprockets 9 to 11 and the car position adjusting driving sprocket 13.
- the lower car 4 Since the upper car 3 and the lower car 4 are suspended by the first and second chains 7 and 8, the lower car 4 is raised while the upper car 3 is lowered, and the upper car 3 is raised while the lower car 4 is lowered. Owing to this, the distance between the upper car 3 and the lower car 4 is changed, and irregular distances between floors can be dealt with.
- the present invention is made to solve the problem mentioned above, and an object of the present invention is to provide a car apparatus for a double-deck elevator which can prevent an upper car and a lower car from falling when a suspending member suspending the upper car and the lower car is cut.
- a car apparatus for a double-deck elevator comprising: a main frame having a guide rail, that is raised and lowered in a hoistway; an upper car disposed inside the main frame, the upper car capable of being raised and lowered along the guide rail; a lower car disposed inside the main frame below the upper car, the lower car capable of being raised and lowered along the guide rail; a car position adjusting driving machine mounted to the main frame and having a car position adjusting drive sheave, for changing a distance between the upper car and the lower car by raising and lowering the upper car and the lower car, and a flexible suspending member suspending the upper car and the lower car in relation to the main frame, wound around the car position adjusting drive sheave, wherein the upper car and the lower car are suspended in relation to the main frame by an odd number roping method, and the upper car and the lower car are provided with slack rope safeties for fixing the upper car and the lower car in relation to the guide rail,
- Fig. 1 is a front view showing a car apparatus for a double-deck elevator according to an embodiment of the present invention
- Fig. 2 is a cross-sectional view taken along the line II-II in Fig. 1 .
- a main driving machine (hoisting machine) 21 having a drive sheave 21a, and a deflector sheave 22 are disposed at an upper portion of a hoistway.
- a main rope 23 is wound around the drive sheave 21a and the deflector sheave 22.
- a car apparatus 24 is suspended at a first end portion of the main rope 23.
- a counterweight 25 is suspended at a second end portion of the main rope 23.
- Amain frame 26 of the car apparatus 24 has a pair of longitudinal columns 27, an upper beam 28, an intermediate beam 29, a lower beam 30, a pair of upper car guide rails 31, and a pair of lower car guide rails 32.
- the upper beam 28 is horizontally fixed between upper end portions of the longitudinal columns 27.
- the intermediate beam 29 is horizontally fixed between intermediate portions of the longitudinal columns 27.
- the lower beam 30 is horizontally fixed between lower end portions of the longitudinal columns 27.
- the upper car guide rails 31 and the lower car guide rails 32 are fixed inside the main frame 26 in parallel with the longitudinal columns 27.
- An upper car 33 is disposed between the upper beam 28 and the intermediate beam 29.
- the upper car 33 is capable of being raised and lowered along the upper car guide rails 31.
- a lower car 34 is disposed between the intermediate beam 29 and the lower beam 30.
- the lower car is capable of being raised and lowered along the lower car guide rails 32.
- a car position adjusting driving machine 35 which changes the distance between the upper car 33 and the lower car 34 by raising and lowering the upper car 33 and the lower car 34 is supported by the upper beam 28.
- the car position adjusting driving machine 35 has a car position adjusting drive sheave 36.
- a pair of rotatable upper beam pulleys 37 are mounted to the upper beam 28.
- a pair of rotatable intermediate beam pulleys 38 are mounted to the intermediate beam 29.
- a pair of rotatable upper car pulleys 39 are mounted to an upper portion of the upper car 33.
- a pair of rotatable lower car pulleys 40 are mounted to an upper portion of the lower car 34.
- the upper car 33 and the lower car 34 are suspended in relation to the main frame 26 by a flexible rope 50 that is a suspending member.
- the rope 50 is composed of a synthetic fiber rope, for example.
- a first end portion of the rope 50 is connected to a lower portion of the upper car 33.
- a second end portion of the rope 50 is connected to a lower portion of the lower car 34.
- the rope 50 is wound in sequence around, from the first end portion, the upper beam pulleys 37, the upper car pulleys 39, the car position adjusting drive sheave 36, the lower car pulleys 40 and the intermediate beam pulleys 38. Accordingly, the upper car 33 and the lower car 34 are suspended by a 3:1 roping method.
- Slack rope safeties 51 and 52 which detect slack in the rope 50 to fix the upper car 33 and the lower car 34 in relation to corresponding guide rails 31 and 32 are provided at the lower portions of the upper car 33 and the lower car 34, respectively.
- Fig. 3 is a front view showing the slack rope safeties 51 and 52 in Fig. 1
- Fig. 4 is a cross-sectional view taken along the line IV-IV in Fig. 3
- the end portions of the rope 50 are connected to tip portions of mounting arms 53.
- the mounting arms 53 are pivotably coupled with the lower portions of the upper car 33 and the lower car 34 about shafts 54.
- the shafts 54 are disposed at base end portions of the mounting arms 53.
- the mounting arms 53 are urged downwardly in relation to the upper car 33 and the lower car 34 by compression springs 55.
- Grip members 56 are fixed to side portions of the upper car 33 and the lower car 34.
- the grip members 56 are provided with tapered groove portions 56a in which the guide rails 31 and 32 are inserted. Widths of the groove portions 56a broaden in the downward direction.
- Levers 57 which are mechanically interlocked with pivoting of the mounting arms 53 to be pivoted are attached to the side portions of the upper car 33 and the lower car 34. Rollers 58 are provided at tip portions of the levers 57. When slack occurs in the rope 50 and the mounting arms 53 are pushed down by the compression springs 55, the rollers 58 are pushed between the groove portions 56a and the guide rails 31 and 32.
- Each of the slack rope safeties 51 and 52 has a mounting arm 53, a shaft 54, a compression spring 55, a grip member 56, a lever 57 and a roller 58.
- Fig. 5 is a perspective view showing a construction of the rope 50 in Fig. 1 .
- an inner strand layer 44 having a plurality of inner strands 42 and filler strands 43 disposed in gaps between these inner strands 42 is disposed around a core wire 41.
- Each of the inner strands 42 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like.
- the filler strands 43 are composed of a polyamide, for example.
- An outer strand layer 46 having a plurality of outer strands 45 is disposed around an outer circumference of the inner strand layer 44.
- Each of the outer strands 45 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like in a similar manner to the inner strands 42.
- a friction-reducing coating layer 47 for preventing abrasion of the strands 42 and 45 due to friction among the strands 42 and 45 is disposed between the inner strand layer 44 and the outer strand layer 46.
- a protective coating layer 48 is also disposed on an outer circumferential portion of the outer strand layer 46.
- a synthetic fiber rope of this kind has a high coefficient of friction compared to a steel rope and is superior in flexibility.
- the car apparatus 24 and the counterweight 25 are raised and lowered by the driving force of the main driving machine 21.
- the upper car 33 and the lower car 34 simultaneously reach floors vertically abutting one another, the distances between the floors of the building are not always equal and there are some cases where the distances between the floors are different from each other depending upon the floor.
- the upper car 33 and the lower car 34 are raised and lowered in relation to the main frame 26 by the car position adjusting driving machine 35 to adjust the distance between the upper car 33 and the lower car 34.
- the lower car 34 is raised to reduce the distance between the upper car 33 and the lower car 34.
- the upper car 33 is raised, the lower car 34 is lowered to increase the distance between the upper car 33 and the lower car 34.
- the slack rope safeties 51 and 52 prevent the upper car 33 and the lower car 34 from falling in the main frame 26.
- the mounting arms 53 are pushed downwardly by the compression springs 55, and the levers 57 are interlocked and pivoted. Owing to this, the rollers 58 are pushed between the groove portion 56a and the guide rails 31 and 32. Accordingly, even if the rope 50 slackens or is cut, the upper car 33 and the lower car 34 are fixed in relation to the guide rails 31 and 32, thereby preventing the upper car 33 and the lower car 34 from falling in the main frame 26.
- the car position adjusting driving machine 35 hoists only the difference between the weights of the upper car 33 and the lower car 34, output can be reduced. Additionally, if in the 3:1 roping method, since the car position adjusting driving machine 35 is required to support only one third of the total weight of the upper car 33 and the lower car 34, the car position adjusting driving machine 35 can be reduced in size and weight.
- the diameters of all the pulleys 37 to 40 can be reduced, and installation space for the pulleys 37 to 40 can be easily secured inside the main frame 26. Also, since the adjustment range between the maximum and minimum distances between the upper car 33 and the lower car 34 can be easily adjusted by only adjusting the length of the rope 50, structural restrictions are decreased.
- the rope 50 composed of the synthetic fiber rope is shown as a suspending member, ropes composed of other materials may also be used. Further, it is also possible that a belt is used as the suspending member. Furthermore, it is also possible that a chain is used as the suspending member sprockets are used instead of the pulleys.
- the suspending method of the car apparatus 24 is not limited to this.
- the present invention is applicable to various types of double-deck elevators such as, for example, hydraulic elevators, roped linear motor elevators, or rope-less linear motor elevators.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Description
- The present invention relates to a car apparatus for a double-deck elevator in which an upper car and a lower car are supported by a main frame raised and lowered in a hoistway.
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Fig. 6 is a block diagram showing a conventional car apparatus for a double-deck elevator such as disclosed, for example, in Japanese Patent Application Laid-Open No.Sho 48-76242 guide rails upper car 3 and alower car 4 are supported by the main frame 1 and raised and lowered along theguide rails upper car 3 and thelower car 4 can be adjusted. - Rotatable first and
second sprockets second chains second sprockets - First end portions of the first and
second chains upper car 3, and second end portions of the first andsecond chains lower car 4. That is, theupper car 3 and thelower car 4 are suspended by the first andsecond chains - Third and
fourth sprockets 9 and 10 that rotate with the first andsecond sprockets second sprockets fourth sprocket 10. - A car position adjusting
driving machine 12 for changing the distance between theupper car 3 and thelower car 4 by raising and lowering theupper car 3 and thelower car 4 is mounted to the upper end portion of the main frame 1. The car position adjustingdriving machine 12 has a car position adjusting drivingsprocket 13. A loop-likethird chain 14 is wound around the third to fifth sprockets 9 to 11 and the car position adjusting drivingsprocket 13. - Next, the operation will be described. When the car position adjusting driving
sprocket 13 is rotated by the driving force of the car position adjustingdriving machine 12, thethird chain 14 is circulated and the third andfourth sprockets 9 and 10 are rotated. Because of this, the first andsecond sprockets second sprockets upper car 3 and thelower car 4 are raised and lowered through the first andsecond chains - Since the
upper car 3 and thelower car 4 are suspended by the first andsecond chains lower car 4 is raised while theupper car 3 is lowered, and theupper car 3 is raised while thelower car 4 is lowered. Owing to this, the distance between theupper car 3 and thelower car 4 is changed, and irregular distances between floors can be dealt with. - In such a conventional car apparatus for a double-deck elevator, means for preventing the
upper car 3 and thelower car 4 from falling in the main frame 1 in the event the first orsecond chains upper car 3 or thelower car 4 are cut, are required. - The present invention is made to solve the problem mentioned above, and an object of the present invention is to provide a car apparatus for a double-deck elevator which can prevent an upper car and a lower car from falling when a suspending member suspending the upper car and the lower car is cut.
- To this end, according to one aspect of the present invention, there is provided a car apparatus for a double-deck elevator comprising: a main frame having a guide rail, that is raised and lowered in a hoistway; an upper car disposed inside the main frame, the upper car capable of being raised and lowered along the guide rail; a lower car disposed inside the main frame below the upper car, the lower car capable of being raised and lowered along the guide rail; a car position adjusting driving machine mounted to the main frame and having a car position adjusting drive sheave, for changing a distance between the upper car and the lower car by raising and lowering the upper car and the lower car, and a flexible suspending member suspending the upper car and the lower car in relation to the main frame, wound around the car position adjusting drive sheave, wherein the upper car and the lower car are suspended in relation to the main frame by an odd number roping method, and the upper car and the lower car are provided with slack rope safeties for fixing the upper car and the lower car in relation to the guide rail, respectively, when a slack in the suspending member is detected.
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Fig. 1 is a front view showing a car apparatus for a double-deck elevator according to an embodiment of the present invention; -
Fig. 2 is a cross-sectional view taken along the line II-II inFig. 1 ; -
Fig. 3 is a front view showing the slack rope safeties inFig. 1 ; -
Fig. 4 is a cross-sectional view taken along the line IV-IV inFig. 3 ; -
Fig. 5 is a perspective view showing a construction of the rope inFig. 1 ; and -
Fig. 6 is a block diagram showing an example of a conventional car apparatus for a double-deck elevator. - Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
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Fig. 1 is a front view showing a car apparatus for a double-deck elevator according to an embodiment of the present invention, andFig. 2 is a cross-sectional view taken along the line II-II inFig. 1 . - In the figures, a main driving machine (hoisting machine) 21 having a
drive sheave 21a, and adeflector sheave 22 are disposed at an upper portion of a hoistway. Amain rope 23 is wound around thedrive sheave 21a and thedeflector sheave 22. Acar apparatus 24 is suspended at a first end portion of themain rope 23. A counterweight 25 is suspended at a second end portion of themain rope 23. -
Amain frame 26 of thecar apparatus 24 has a pair oflongitudinal columns 27, anupper beam 28, anintermediate beam 29, alower beam 30, a pair of upper car guide rails 31, and a pair of lowercar guide rails 32. Theupper beam 28 is horizontally fixed between upper end portions of thelongitudinal columns 27. Theintermediate beam 29 is horizontally fixed between intermediate portions of thelongitudinal columns 27. Thelower beam 30 is horizontally fixed between lower end portions of thelongitudinal columns 27. - The upper car guide rails 31 and the lower
car guide rails 32 are fixed inside themain frame 26 in parallel with thelongitudinal columns 27. - An
upper car 33 is disposed between theupper beam 28 and theintermediate beam 29. Theupper car 33 is capable of being raised and lowered along the upper car guide rails 31. Alower car 34 is disposed between theintermediate beam 29 and thelower beam 30. The lower car is capable of being raised and lowered along the lowercar guide rails 32. - A car position adjusting
driving machine 35 which changes the distance between theupper car 33 and thelower car 34 by raising and lowering theupper car 33 and thelower car 34 is supported by theupper beam 28. The car position adjustingdriving machine 35 has a car position adjustingdrive sheave 36. - A pair of rotatable
upper beam pulleys 37 are mounted to theupper beam 28. A pair of rotatableintermediate beam pulleys 38 are mounted to theintermediate beam 29. A pair of rotatableupper car pulleys 39 are mounted to an upper portion of theupper car 33. A pair of rotatablelower car pulleys 40 are mounted to an upper portion of thelower car 34. - The
upper car 33 and thelower car 34 are suspended in relation to themain frame 26 by aflexible rope 50 that is a suspending member. Therope 50 is composed of a synthetic fiber rope, for example. A first end portion of therope 50 is connected to a lower portion of theupper car 33. A second end portion of therope 50 is connected to a lower portion of thelower car 34. - The
rope 50 is wound in sequence around, from the first end portion, theupper beam pulleys 37, theupper car pulleys 39, the car position adjustingdrive sheave 36, thelower car pulleys 40 and theintermediate beam pulleys 38. Accordingly, theupper car 33 and thelower car 34 are suspended by a 3:1 roping method. - Slack rope
safeties rope 50 to fix theupper car 33 and thelower car 34 in relation tocorresponding guide rails 31 and 32 are provided at the lower portions of theupper car 33 and thelower car 34, respectively. -
Fig. 3 is a front view showing theslack rope safeties Fig. 1 , andFig. 4 is a cross-sectional view taken along the line IV-IV inFig. 3 . In the figures, the end portions of therope 50 are connected to tip portions of mountingarms 53. The mountingarms 53 are pivotably coupled with the lower portions of theupper car 33 and thelower car 34 aboutshafts 54. Theshafts 54 are disposed at base end portions of the mountingarms 53. - The mounting
arms 53 are urged downwardly in relation to theupper car 33 and thelower car 34 by compression springs 55.Grip members 56 are fixed to side portions of theupper car 33 and thelower car 34. Thegrip members 56 are provided with taperedgroove portions 56a in which the guide rails 31 and 32 are inserted. Widths of thegroove portions 56a broaden in the downward direction. -
Levers 57 which are mechanically interlocked with pivoting of the mountingarms 53 to be pivoted are attached to the side portions of theupper car 33 and thelower car 34.Rollers 58 are provided at tip portions of thelevers 57. When slack occurs in therope 50 and the mountingarms 53 are pushed down by the compression springs 55, therollers 58 are pushed between thegroove portions 56a and the guide rails 31 and 32. - Each of the
slack rope safeties arm 53, ashaft 54, acompression spring 55, agrip member 56, alever 57 and aroller 58. -
Fig. 5 is a perspective view showing a construction of therope 50 inFig. 1 . In the figure, aninner strand layer 44 having a plurality ofinner strands 42 andfiller strands 43 disposed in gaps between theseinner strands 42 is disposed around acore wire 41. Each of theinner strands 42 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like. Thefiller strands 43 are composed of a polyamide, for example. - An
outer strand layer 46 having a plurality ofouter strands 45 is disposed around an outer circumference of theinner strand layer 44. Each of theouter strands 45 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like in a similar manner to theinner strands 42. - A friction-reducing
coating layer 47 for preventing abrasion of thestrands strands inner strand layer 44 and theouter strand layer 46. Aprotective coating layer 48 is also disposed on an outer circumferential portion of theouter strand layer 46. A synthetic fiber rope of this kind has a high coefficient of friction compared to a steel rope and is superior in flexibility. - Next, the operation will be described. The
car apparatus 24 and the counterweight 25 are raised and lowered by the driving force of the main drivingmachine 21. Although theupper car 33 and thelower car 34 simultaneously reach floors vertically abutting one another, the distances between the floors of the building are not always equal and there are some cases where the distances between the floors are different from each other depending upon the floor. - In such a case, the
upper car 33 and thelower car 34 are raised and lowered in relation to themain frame 26 by the car position adjusting drivingmachine 35 to adjust the distance between theupper car 33 and thelower car 34. In other words, when theupper car 33 is lowered, thelower car 34 is raised to reduce the distance between theupper car 33 and thelower car 34. Also, when theupper car 33 is raised, thelower car 34 is lowered to increase the distance between theupper car 33 and thelower car 34. - In a
car apparatus 24 of this kind, in the event that therope 50 suspending theupper car 33 and thelower car 34 slackens or is cut, theslack rope safeties upper car 33 and thelower car 34 from falling in themain frame 26. - In other words, the mounting
arms 53 are pushed downwardly by the compression springs 55, and thelevers 57 are interlocked and pivoted. Owing to this, therollers 58 are pushed between thegroove portion 56a and the guide rails 31 and 32. Accordingly, even if therope 50 slackens or is cut, theupper car 33 and thelower car 34 are fixed in relation to the guide rails 31 and 32, thereby preventing theupper car 33 and thelower car 34 from falling in themain frame 26. - Further, since the car position adjusting driving
machine 35 hoists only the difference between the weights of theupper car 33 and thelower car 34, output can be reduced. Additionally, if in the 3:1 roping method, since the car position adjusting drivingmachine 35 is required to support only one third of the total weight of theupper car 33 and thelower car 34, the car position adjusting drivingmachine 35 can be reduced in size and weight. - More, since the
rope 50 composed of the synthetic fiber rope is used, the diameters of all thepulleys 37 to 40 can be reduced, and installation space for thepulleys 37 to 40 can be easily secured inside themain frame 26. Also, since the adjustment range between the maximum and minimum distances between theupper car 33 and thelower car 34 can be easily adjusted by only adjusting the length of therope 50, structural restrictions are decreased. - It should be noted that, while, in the above embodiment, the
rope 50 composed of the synthetic fiber rope is shown as a suspending member, ropes composed of other materials may also be used. Further, it is also possible that a belt is used as the suspending member. Furthermore, it is also possible that a chain is used as the suspending member sprockets are used instead of the pulleys. - More, while, the
upper car 33 and thelower car 34 are suspended in the above embodiment by the 3:1 roping method in themain frame 26, odd number roping methods, for example, a 5:1 roping method and the like may also be applicable. - Moreover, while, the double-deck elevator in which the
car apparatus 24 and the counterweight 25 are suspended by the 1:1 roping method is described in the above embodiment, the suspending method of thecar apparatus 24 is not limited to this. - Further, the present invention is applicable to various types of double-deck elevators such as, for example, hydraulic elevators, roped linear motor elevators, or rope-less linear motor elevators.
Claims (4)
- A car apparatus (24) for a double-deck elevator comprising:a main frame (26) having a guide rail (31, 32) and which is raised and lowered in a hoistway;an upper car (33) disposed inside said main frame (26), said upper car (33) capable of being raised and lowered along said guide rail (31, 32);a lower car (34) disposed inside said main frame (26) below said upper car (33), said lower car (34) capable of being raised and lowered along said guide rail (31, 32);a car position adjusting driving machine (35) mounted to said main frame (26) and having a car position adjusting drive sheave (36), for changing a distance between said upper car (33) and said lower car (34) by raising and lowering said upper car (33) and said lower car (34); and said upper car (33) and said lower car (34) are suspended in relation to said main frame (26) by an odd number roping method, andcharacterized in that said car apparatus further comprises a flexible suspending member (50) suspending said upper car (33) and said lower car (34) in relation to said main frame (26), wound around said car position adjusting drive sheave (36),
said upper car (33) and said lower car (34) are provided with slack rope safeties (51, 52) for fixing said upper car (33) and said lower car (34) in relation to said guide rail (31, 32), respectively when slack in said suspending member (50) is detected. - The car apparatus (24) for a double-deck elevator according to claim 1, wherein each slack rope safety (51, 52) has:a mounting arm (53) pivotably coupled respectively with said upper car (33) or said lower car (34), to which one of first and second end portions of said suspending member (50) are connected;a spring (55) urging said mounting arm (53) downwardly in relation to said upper car (33) and said lower car (34);a grip member (56) provided with a tapered groove portion (56a) in which said guide rail (31, 32) is inserted; anda roller (58) disposed in said groove portion (56a), said roller (58) being pushed between said groove portion (56a) and said guide rail (31, 32) when slack is generated in said suspending member (50) and said mounting arm (53) is pushed down by said spring (55).
- The car apparatus (24) for a double-deck elevator according to claim 1 or 2, wherein said suspending member (50) is composed of a synthetic fiber rope.
- The car apparatus (24) for a double-deck elevator according to any one of claims 1to 3, wherein:said main frame (26) has a pair of longitudinal columns (27), an upper beam (28) fixed between upper end portions of said longitudinal columns (27), an intermediate beam (29) fixed between intermediate portions of said longitudinal columns (27), and a lower beam (30) fixed between lower end portions of said longitudinal columns (27);an upper beam pulley (37) is mounted to said upper beam (28);an intermediate beam pulley (38) is mounted to said intermediate beam (29);an upper car pulley (39) is mounted to said upper car (33);a lower car pulley (40) is mounted to said lower car (34);a first end portion of said suspending member (50) is connected to said upper car (33);a second end portion of said suspending member (50) is connected to said lower car (34); andsaid suspending member (50) is wound in sequence round, said first end portion, said upper beam pulley (37), said upper car pulley (39), said car position adjusting drive sheave (36), said lower car pulley (40) and said intermediate beam pulley (38).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2000/007846 WO2002038482A1 (en) | 2000-11-08 | 2000-11-08 | Cage device for double deck elevators |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1357075A1 EP1357075A1 (en) | 2003-10-29 |
EP1357075A4 EP1357075A4 (en) | 2008-11-26 |
EP1357075B1 true EP1357075B1 (en) | 2010-03-10 |
Family
ID=11736668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00974827A Expired - Lifetime EP1357075B1 (en) | 2000-11-08 | 2000-11-08 | Cage device for double deck elevators |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1357075B1 (en) |
JP (1) | JPWO2002038482A1 (en) |
CN (1) | CN1239376C (en) |
DE (1) | DE60043999D1 (en) |
WO (1) | WO2002038482A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11332344B2 (en) | 2018-05-16 | 2022-05-17 | Otis Elevator Company | Elevator car frame assembly |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI5925U1 (en) * | 2003-04-02 | 2003-09-05 | Kone Corp | Hardware to drive double-deck level |
FI116617B (en) | 2003-08-12 | 2006-01-13 | Kone Corp | Method and apparatus for controlling basket spacing in a double basket lift |
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JP4262824B2 (en) * | 1999-04-08 | 2009-05-13 | 東芝エレベータ株式会社 | Double deck elevator equipment |
JP4270642B2 (en) * | 1999-04-23 | 2009-06-03 | 東芝エレベータ株式会社 | Elevator equipment |
-
2000
- 2000-11-08 WO PCT/JP2000/007846 patent/WO2002038482A1/en active Application Filing
- 2000-11-08 EP EP00974827A patent/EP1357075B1/en not_active Expired - Lifetime
- 2000-11-08 CN CN00818269.8A patent/CN1239376C/en not_active Expired - Fee Related
- 2000-11-08 JP JP2002531047A patent/JPWO2002038482A1/en not_active Withdrawn
- 2000-11-08 DE DE60043999T patent/DE60043999D1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11332344B2 (en) | 2018-05-16 | 2022-05-17 | Otis Elevator Company | Elevator car frame assembly |
Also Published As
Publication number | Publication date |
---|---|
WO2002038482A1 (en) | 2002-05-16 |
EP1357075A4 (en) | 2008-11-26 |
CN1420839A (en) | 2003-05-28 |
JPWO2002038482A1 (en) | 2004-03-18 |
EP1357075A1 (en) | 2003-10-29 |
DE60043999D1 (en) | 2010-04-22 |
CN1239376C (en) | 2006-02-01 |
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