JP2003182951A - Elevator system and building provided with the elevator system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a dead space caused by forming a pit and a clearance in a top part in an elevator even when a plurality of elevators elevating in only a scope of different stories are provided. <P>SOLUTION: A building 1 has a plurality of stories from a first floor F1 to an E floor FE. The elevator 2 in which an elevator shaft 21 passing through from the first floor F1 to the E floor FE is formed is provided in the building 1. In the elevator shaft 21, two cars 22, 23 are arranged by arranging them in the direction of height. The upper car 22 can elevate from an n floor Fn to the E floor FE, and the lower car 23 can elevate from the first floor F1 to (n-1) floor F<SB>(n-1)</SB>. A buffer space S is formed between the (n-1) floor F<SB>(n-1)</SB>and the n floor Fn, and a bidirectional shock absorber 40 is provided in this buffer space S. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator system provided in a building having a plurality of floors used in houses, hotels and the like, and a building provided with the elevator system.

[0002]

2. Description of the Related Art In a building having a plurality of floors such as a high-rise building, upper floors and lower floors, or upper floors,
There are different owners and users for different floors and lower floors. In such a building, a different elevator may be provided for each floor due to reasons such as operation, security, and sectional ownership.

An example of such a building is shown in FIG.
There is one shown in. As shown in FIG. 10, this building 8
0 has, for example, an upper-layer elevator 81 that raises and lowers only the upper layer and an elevator 82 that lowers and lowers only the lower layer. An elevator shaft 83 is provided in the upper-layer elevator 81, and an elevator car 84 is provided inside the elevator shaft 83. A pit 85 is formed at the bottom of the elevator shaft 83, and a top clearance 86 is formed at the top. On the other hand, an elevator shaft 87 is provided in the low-rise elevator 82, and a car 88 that moves up and down is provided inside the elevator shaft 87.
Is provided. Further, a pit 89 is formed at the bottom of the elevator shaft 87, and a top clearance 90 is formed at the top. In addition, a shuttle elevator 91 that communicates from the ground to the lowermost floor in the upper floor is provided at a side portion of the building 80. An elevator system is formed by these elevators. In addition, at the top of the upper-layer elevator 81,
A machine room 92 is provided.

[0004]

However, in the above conventional elevator system, the elevator shafts 83 and 87 are provided in the upper layer elevator 81 and the lower layer elevator 82, respectively. Then, in each elevator shaft 83, 87, the pit 8
5,89 and top clearances 86,90 had to be provided. Therefore, the pit 85 of the elevator 81 for the upper layer and the top clearance 90 of the elevator 82 for the lower layer are provided between the upper layer and the lower layer, and the space is a dead space. There was a problem that the available space was limited.

In addition, for safety, it is necessary to install a shock absorber, for example, in the pit or the top clearance of the elevator.
It should be noted that the shock absorbing device mentioned here includes not only the device but also the shock absorbing space. In this regard, in the conventional building 80 shown in FIG. 10, two shock absorbers are required for each elevator in the pit and the top clearance, and it is necessary to provide many shock absorbers accordingly. .

[0006] Therefore, an object of the present invention is to provide a building having a plurality of floors such as a high-rise building with a plurality of elevators that move up and down only in different ranges of floors.
The purpose is to reduce the dead space that occurs due to the formation of pits and top clearances in those elevators, and to make the usable space wider. Furthermore, it is to reduce the number of shock absorbers provided for safety.

[0007]

According to the present invention, which has solved the above-mentioned problems, a plurality of cars are arranged side by side in the height direction in an elevator shaft provided in a building having a plurality of floors. The car is characterized in that the moving ranges are set between predetermined independent layers in the elevator shaft, and the moving ranges do not overlap each other.

As described above, the plurality of cars arranged side by side in the height direction within one elevator shaft have their moving ranges set between independent predetermined layers, and the moving ranges of the cars overlap. Absent. Therefore, the car above can be used for the upper layer and the car below can be used for the lower layer. Therefore, for example, when there are different owners and users in the upper and lower floors in one building, they can be used as elevator cars of different uses or owners. At this time, since the car for the upper layer and the car for the lower layer are housed in one elevator shaft, it is possible to reduce the dead space that is conventionally generated when a plurality of elevators are provided. As a result, the usable space can be widened.

Further, the elevator shaft of the present invention is preferably used, for example, when there are a plurality of users or owners of an existing building, where the user or owner is a single person. That is, in an existing building, if there is one car in the elevator shaft, if one car is provided in the elevator shaft, one is used as the car for the upper floor and the other is used as the car for the lower floor. Can be installed easily.

Here, between the upper car of the plurality of cars and the lower car located immediately below the upper car, there is formed a dual-purpose space that serves as both the pit for the upper car and the top clearance for the lower car. It is suitable.

As described above, by forming the dual-purpose space that also serves as the pit for the upper car and the top clearance for the lower car, it is possible to reduce the dead space in the height direction in the elevator shaft.

Further, it is desirable that a two-way type shock absorber for shock absorbing both the upper car and the lower car is provided in the combined space.

By providing such a two-way type shock absorber, it is not necessary to provide one shock absorber for each car. As a result, the number of buffer devices can be reduced, which can contribute to simplification of the device and cost reduction.

As such a bidirectional shock absorber, there is a case having a hollow portion formed along the height direction, and a first rod that can be inserted into the case from above and a lower rod that can be inserted into the case from below. The second rod may be provided, and the cushioning member may be provided between the first rod and the second rod in the case.

Here, as the buffer member, a vertically expandable spring provided in the case or an oil damper filled with buffer hydraulic oil filled in the case can be used.

The bidirectional shock absorber includes a plate disposed between the upper car and the lower car,
It is also possible to use one in which the plate is supported by an upper spring that biases the plate diagonally upward and a lower spring that biases the plate diagonally downward.

Alternatively, the bidirectional buffer member includes a pantograph-type link member, an upper plate and a lower plate are attached to an upper portion of the pantograph-type link member, and at least one of both sides of the pantograph-type link member is provided. It is also possible to use the one provided with a damper member that absorbs the force in the horizontal direction.

On the other hand, the present invention is a building provided with any one of the above elevator systems.

Further, in the above-mentioned building, it is preferable that a shuttle elevator leading from the ground floor is provided toward the floor of the plurality of cars in the elevator system where the upper car stops.

By providing such a shuttle elevator, the convenience of the user of the car provided above can be enhanced.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will now be described in detail with reference to the drawings. The same elements will be denoted by the same reference symbols, without redundant description. FIG. 1 is a diagram showing a building according to a first embodiment of the present invention. As shown in FIG. 1, a building 1 according to this embodiment has a plurality of floors, for example, ground floors F1 and F2.
Floor F2, third floor F3, ..., It is an E-story building having the uppermost E floor FE. In the building 1, the upper and lower floors have different owners or users. For example, the upper floor above the nth floor Fn is a hotel and the floor below the (n-1) th floor F (n-1). The lower layer is a house, and each user is different. In addition, a buffer space S is formed between the upper layer and the lower layer, and this buffer space S is used as, for example, a wiring space for facility piping, ducts, and electric wiring. However, the buffer space S may be an independent floor, or may be considered as an underfloor or a ceiling space of the upper floor or the lower floor of the buffer space S, respectively.

In the building 1, an elevator 2 and a shuttle elevator 3 are provided. Elevator 2
Is provided with an elevator shaft 21 penetrating from the first floor F1 to the E floor FE.
There are a plurality of, and in the present embodiment, two cars 22, 23 in one.
Are arranged side by side in the height direction. These baskets 2
The moving ranges of 2 and 23 are set between predetermined independent layers, and the moving ranges of the two and 23 do not overlap with each other. Specifically, the upper car 22 is from the nth floor Fn to the upper floor E
The floor car FE is set up and down, and the lower car 23 is set up and down between the first floor F1 and the (n-1) floor F (n-1). Both of the cars 22 and 23 can be stopped at each floor within a predetermined movement range.

Further, in the lower position of the lowermost part of the moving range of the upper car 22 in the elevator shaft 21 and above the uppermost part of the moving range of the lower car 23, the pit of the upper car and the top clearance of the lower car 23 are provided. A dual-purpose space 26 that also serves as is formed. Since such a combined space 26 is formed, it is not necessary to separately form a pit for the upper car 22 and a top gap for the lower car 23, and therefore the space for ensuring safety is reduced accordingly. You can Therefore, it is possible to secure a space that can be used for other purposes. On the other hand, the pit 24 and the top gap 25 are provided with shock absorbers (not shown).

An elevator shaft 31 is formed inside the shuttle elevator 3. Inside the elevator shaft 31, a car 32 that moves up and down is provided.
A pit 33 is formed at the bottom of the elevator shaft 31, and a top clearance 34 is formed at the top. The car 32 in the elevator shaft 31 is from the first floor F1
It is possible to move to the lowest floor of the upper floor, the nth floor Fn, without stopping at the floor in between, from the first floor F1 to the nth floor Fn.
It is designed to go directly to.

Further, in the combined space 26 in the elevator shaft 21 of the elevator 2, the two-way shock absorber 40 is provided.
Is provided. The two-way shock absorber 40 includes a hollow case 41, as shown in FIGS. 2 and 3. The case 41 has a first rod 42 that can be inserted into the case 41 from above and a second rod 43 that can be inserted from below.
Are provided respectively. These first rods 42,
The second rods 43 are both arranged inside the elevator shaft 21 and are directly below the upper car 22,
It is arranged directly above the lower car 23.

Further, in the inside C of the case 41, a spring 44 which is vertically expandable and contractible is provided as a cushioning member. The spring 44 is extended to the case 4
It is housed in 1 and contracts when the first rod 42 descends or the second rod 43 rises,
It has a buffer function. The case 41 is supported by a support rod 45 from its side. The support rod 45 is supported by being fastened to support frames 46 and 47 provided in the buffer space S in the building 1.

In the building 1 having the above structure,
Only the lower car 23 moves up and down during the lower floors from the first floor F1 to the (n-1) th floor F (n-1), and the upper car between the upper floors from the nth floor Fn to the top floor FE. Only 22 goes up and down. For this reason, when a guest of a hotel using the upper floor uses the elevator 2, it is possible to prevent the user from getting off at a certain floor. On the contrary, it will not happen that the user of the house overtakes the elevator 2 and goes to the hotel in the upper floor. At this time, basket 2
2 and 23 are housed in one elevator shaft 21, and a combined space 26 that serves as a pit of the upper car 22 and a top clearance of the lower car 23 is formed. For this reason,
It is possible to reduce the space for ensuring safety, and thus to ensure the space for effective use.

Further, in the building 1 of the present embodiment, a customer who uses a hotel on the upper floor moves from the ground floor to the nth floor Fn, which is the lowest floor of the upper floor, using the shuttle elevator 3. To do. On the other hand, the resident of the house uses the elevator 2 to ride on the lower car 23 and move to the desired floor. In this way, the entrance of the elevator used on the ground floor is different between the user of the hotel on the upper floor and the resident of the house on the lower floor, so that both sides do not have to meet each other on the ground floor. can do.

Further, regarding the safety of the elevator 2, in this embodiment, the bidirectional shock absorber 40 is provided in the combined space. By providing this bidirectional shock absorber 40, the number of shock absorbers can be reduced. for that reason,
This can contribute to simplification of the structure of the entire building 1 and cost reduction.

The operation of the two-way shock absorber 40 will be described. It is assumed that the upper car 22 drops due to, for example, the rope suspending the upper car 22 being cut. When the upper car 22 falls, it eventually reaches the dual-purpose space 26 and collides with the first rod 42 of the two-way shock absorber 40. When the bottom of the upper car 22 collides with the first rod 42, the first rod 42 descends. At this time, since the spring 44 that expands and contracts in the vertical direction is provided below the first rod 42, the spring 44 contracts as the first rod 42 descends. By the contraction of the spring 44,
The falling energy of the upper car 22 is absorbed and the cushioning function is achieved. In this way, the cushioning function for the upper car 22 is exerted.

On the other hand, even when the lower car 23 suddenly rises, the cushioning function is exhibited by the same principle. Lower basket 2
When 3 rapidly rises, the second rod 43 is arranged above the lower car 23, so that the head of the lower car 23 eventually collides with the second rod 43. A spring 44 that expands and contracts in the vertical direction is provided above the second rod 43. The lower cage 23 collides with the second rod 43 and the second rod 43 moves up, whereby the spring 44 contracts. By the contraction of the spring 44 at this time, the kinetic energy of the lower car 2 is absorbed, and the cushioning function is achieved. In this way, since the cushioning function is also exerted on the lower car 23, the one bidirectional cushioning device 40 can exert the cushioning effect on the descent and the sudden rise of both the cars 22 and 23.

In the present embodiment, the spring 44 is provided as a buffer member housed in the case 41, but instead of the spring 44, for example, buffer hydraulic oil may be filled in the case 41. . Alternatively,
Both the spring and the hydraulic fluid for buffering may be provided in the case 41. Furthermore, the case 41
It is also possible to use an oil damper having the buffer hydraulic oil filled therein. As this oil damper, a well-known oil damper, for example, an oil chamber is partitioned by a piston attached to one rod penetrating the oil chamber filled with hydraulic fluid for buffering, and these partitioned oil dampers are used. A chamber in which the chambers communicate with each other through a small hole having an oil passage formed with an orifice can be used.

Next, a second embodiment of the present invention will be described. In this embodiment, only the configuration of the shock absorber is different from that of the first embodiment, and therefore the shock absorber will be described.

FIG. 4 is a front view of the bidirectional shock absorber according to the second embodiment. The bidirectional shock absorber 50 according to the present embodiment includes a plate 51. The plate 51 is
It is arranged between the upper car 22 and the lower car 23. When the upper car 22 falls, the upper car 22
Collides with the plate 51 and the lower car 23 suddenly rises, the lower car 23 collides with the plate 51. The plate 51 is supported by the first upper spring 52 from the upper left, and the second upper spring 5 from the upper right.
Supported by 3. These first upper springs 52
The plate 51 is biased obliquely upward by the second upper spring 53. Further, it is supported by the first lower spring 54 from the lower left and is supported by the second lower spring 55 from the lower right. The plate 51 is biased obliquely downward by the first lower spring 54 and the second lower spring 55. These springs 5
The biasing forces of 2 to 55 are almost the same, and the plate 51 is
They are arranged in a well-balanced manner at almost the center of them.
As described above, the plate 51 is biased from above and below and to the left and right by the four springs 52 to 55 in an obliquely vertical direction with a substantially uniform force, and the springs 52 to 55 are arranged in a trampoline type. .

The operation of the two-way shock absorber 50 according to this embodiment having the above structure will be described. In the two-way shock absorber 50 according to the present embodiment, when the upper car 22 drops due to a break in the rope that suspends the upper car 22, the bottom of the upper car 22 collides with the plate 51. When the upper car 22 collides with the plate 51, the plate 51 tries to drop downward. At this time, the upper spring 5 supporting the plate 51 from diagonally above
2 and 53 respectively extend, and a biasing force that pulls the plate 51 upward is generated. By this biasing force,
The cushioning effect is exerted, and the plate 51 and the upper car 22 are
Suppress the fall of. In this way, the function as a shock absorber is exhibited.

The same applies when the lower car 23 suddenly rises. When the lower car 23 suddenly rises, the head of the lower car 23 collides with the plate 51. Lower basket 2
When 3 collides with the plate 51, the plate 51 also starts to rise as the lower car 23 suddenly rises. When the plate 51 rises, the lower springs 54 and 55 that support the plate 51 extend obliquely from below, respectively.
A biasing force is generated to push down the lower part of 1. This urging force exerts a cushioning effect, and suppresses the sudden rise of the plate 51 and the lower car 23. In this way, the function as a shock absorber is exhibited.

Next, a third embodiment will be described. FIG. 5 is a front view of the two-way shock absorber according to the third embodiment. As shown in FIG. 5, the bidirectional shock absorber 60 according to the present embodiment includes an upper plate 61 and a lower plate 62. One end of each of the first and second link members 63a and 63b is rotatably pivotally attached to the lower position of the upper plate 61. First link member 6
The other end of 3a is pivotally attached to the tip of the rod member 65 of the first damper member 64, and the second link member 63b.
The other end of the second damper member 66 is pivotally attached to the tip of the rod member 67 of the second damper member 66. In addition, one end of each of the third and fourth link members 63c and 63d is rotatably attached to the upper position of the lower plate 62. And the third
The other end of the link member 63c is pivotally attached to the tip of the rod member 65 of the first damper member 64, and the other end of the second link member 63b is attached to the tip of the rod member 67 of the second damper member 66. It is pivotally attached. These 1st-4th
The link members 63a to 63d are arranged in a parallelogram shape, and form a pantograph-type link member 63.

The first damper member 64 is a cylindrical member which is long in the horizontal direction, and the rod member 65 is slidably attached to the inside thereof. The first damper member 64 is fixed to the damper mount 68 provided on the left side of the combined space 26, and is fixed to the building 1. The second damper member 66, like the first damper member 64, is a tubular member that is long in the horizontal direction,
A rod member 67 is slidably attached to the inside of the rod member 67. The second damper member 66 serves as the dual-purpose space 2
It is fixed to a damper mount 69 provided on the right side of 6, and is also fixed to the building 1.

The operation of the two-way shock absorber 60 according to this embodiment having the above structure will be described. In the two-way shock absorber 60 according to the present embodiment, when the upper car 22 is dropped due to the rope for suspending the upper car 22 being cut or the like, the bottom of the upper car 22 has an upper plate 61.
Clash with. When the upper car 22 collides with the upper plate 51, the upper plate 51 begins to drop downward as shown in FIG. When the upper plate 51 drops downward, the first and second link members 63a and 63b move downward and move in a direction in which they spread outward. First,
When the second link members 63a and 63b move in the outward spreading direction, the rod members 65 and 67 provided on the first and second damper members 64 and 66 respectively move to the first and second damper members 64 and 66, respectively. It is inserted while sliding. At this time, sliding resistance is generated by the sliding of the first and second damper members 64, 66 and the rod members 65, 67, and the upper car 22 is prevented by the sliding resistance against the force in the horizontal direction.
It absorbs the fall energy when it falls and exerts a buffering effect.

Thus, the first and second link members 63a, 6
3b continues to spread as it falls, and after continuing to fall after becoming horizontal, as shown in FIG.
The first and second link members 63a and 63b now fall and start moving in the closing direction. When the first and second link members 63a and 63b start moving in the closing direction, the rod members 65 and 67 move in the directions in which they are pulled out from the first and second damper members 64 and 66, respectively. Thus, even when the rod members 65 and 67 move in the pull-out direction, the rod members 65 and 67 slide with respect to the first and second damper members 64 and 66, and the sliding resistance is caused by this sliding. Occurs. The sliding resistance against the force in the horizontal direction absorbs the fall energy when the upper car 22 falls to exert a cushioning effect. Thus, the first
Even after the second link members 63a and 63b start to spread, the energy generated by the fall of the upper car 22 can be absorbed and the cushioning function can be exerted.

Further, even when the lower car 23 suddenly rises, the buffering function is exerted by the same action. When the lower car 23 suddenly rises, the head of the lower car 23 collides with the lower plate 62. Lower basket 2 on lower plate 62
When 3 collides, the lower plate 62 begins to rise. Then, the third and fourth link members 63c and 63d move upward and move in the directions of spreading outward. Then, since the rod members 65 and 67 are slidably inserted into the first and second damper members 64 and 66, respectively,
The frictional force at the time of sliding exerts a cushioning effect. When the third and fourth link members 63c, 63d rise above the horizontal state, this time, the third, fourth link members 63c, 6d
3d moves in the closing direction. At this time as well, a frictional force is generated between the first and second damper members 64 and 66 and the rod members 65 and 67, and this frictional force causes the lower car 23 to move.
The kinetic energy of is absorbed and the buffering effect is exerted. Thus, even when the lower car 23 suddenly rises, the cushioning function is sufficiently exerted.

In this embodiment, a damper member utilizing sliding resistance is used, but a damper member having a cushioning function may be provided, for example, by a spring or oil.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, in the above-described embodiment, the upper layer is the hotel and the lower layer is the house, but as shown in FIG. 8, the upper layer α and the lower layer β are separated from each other by the partition line X. , Can be as follows: For example, the upper layer α may be a hotel, the lower layer β may be an office, the upper layer α may be a house, the lower layer β may be an office, the upper layer α may be a house, and the lower layer β may be a hotel. Further, the owners may be different such that the upper layer α is the company A and the lower layer β is the company B.
In this case, a buffer space S for forming a shared space is formed between the upper layer α and the lower layer β.

Further, in the above embodiment, the shuttle elevator leading to the lowest floor of the upper floor is provided, but other moving means such as an escalator is provided instead of the shuttle elevator or in combination with the shuttle elevator. You can also Of course, it is also possible to adopt a mode in which stairs are provided instead of or in addition to these moving means. Further, although the shuttle elevator is connected to the lowest floor of the upper floor, the shuttle elevator may be connected to other floors where the upper car stops.

Furthermore, in the above-described embodiment, the case where different users and the like exist in the two upper and lower hierarchies has been described. For example, as shown in FIG. 9, the building 70 is divided into three hierarchies. You can also do it. in this case,
The upper part of the partition line Y is the upper layer, the partition line Y and the partition line Z.
The middle level is the middle level, and the lower part of the partition line Z is the lower level. In the building 70, an elevator shaft 71 of an elevator that penetrates from a lower floor to an upper floor is formed. Inside the elevator shaft 71 are three cars 7
2, 73 and 74 are arranged side by side in the height direction. These cars 72, 73, 74 have a movement range set between independent predetermined hierarchies, and are arranged so as not to move outside the set movement range. The upper car 72 moves up and down between the upper floors, and the center car 73
Moves up and down between the middle layers and the lower car 74 moves between the lower layers.

A pit 75 is formed at the bottom of the elevator shaft 71, and a top clearance 76 is formed at the top. In addition, the first layer is between the upper layer and the middle layer.
A buffer space S1 is formed, and a second buffer space S2 is formed between the middle layer and the lower layer. Further, the upper car 7 is located at a lower position in the range where the upper car 72 moves.
The upper position of the range in which the central car 73 immediately below 2 moves, and the lower position of the range in which the central car 73 moves,
Directly below the central car 73, above the lower car 74, dual-purpose spaces 77A and 77B are formed, respectively. These dual-purpose spaces 77A and 77B have the same functions as those of the dual-purpose space described in the above embodiment, and are each provided with a two-way shock absorber (not shown).

Further, on the side of the building 70, there is a first shuttle elevator 78 from the ground floor to the lowest floor of the middle floor.
Is provided, and a second shuttle elevator 79 that leads from the ground floor to the lowest floor of the higher floors is provided on the opposite side of the building 70. Users in the middle floor can move directly to the bottom floor of the middle floor by the first shuttle elevator 78, and users in the higher floors can
The second shuttle elevator 79 can directly move to the lowest floor of the higher floors.

As described above, according to the present invention, not only the case of two hierarchies and the lower hierarchy, but also three hierarchies,
Alternatively, even in the case of a high-rise building having higher floors, the same operational effect can be obtained.

On the other hand, in recent years, the number of cases where a building built for one purpose is changed to another purpose or transferred to another owner due to economic conditions and the like is increasing. . Even in the case where the use is changed or the owner is moved, the building according to the present invention can easily cope with it.

More specifically, a building built for one purpose, such as a house, is provided with, for example, an elevator from the lowest floor to the highest floor. In this elevator, one elevator shaft There is one basket inside. It is assumed that the upper layer of this building has been changed to a hotel and the lower layer has remained as a house. In such a case, the car that has been conventionally used may be used as it is for the house (lower layer) and the car for the hotel (upper layer) may be separately provided in the elevator shaft. Therefore, even when the elevator for the upper layer is provided, it is not necessary to separately form the elevator shaft, and the manufacturing thereof becomes easy.

[0051]

As described above, according to the present invention, in a building having a plurality of floors, such as a high-rise building, even if a plurality of elevators that move up and down only in different levels are provided, those elevators can be used. It is possible to reduce the dead space that is created due to the formation of the pit and the top clearance in. Therefore, the usable space can be increased.

Further, it is possible to reduce the number of shock absorbers provided for the safety of the elevator.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an internal structure of a building according to a first embodiment of the present invention.

FIG. 2 is a front view of a two-way type shock absorber.

FIG. 3 is a front sectional view of an essential part thereof.

FIG. 4 is a front view of a two-way type shock absorber according to a second embodiment.

FIG. 5 is a front view of a two-way type shock absorber according to a third embodiment.

FIG. 6 is a front view showing the operating state thereof.

FIG. 7 is a front view showing an operation state following FIG.

FIG. 8 is a front view for explaining a mode of use of the building.

FIG. 9 is a diagram for explaining the internal structure of the building according to the fourth embodiment of the present invention.

FIG. 10 is a diagram for explaining an internal structure of a conventional building.

[Explanation of symbols]

1 ... Building 2 ... elevator 3 ... Shuttle elevator 21 ... Elevator shaft 22 ... Upper basket 23 ... Lower basket 24 ... Pit 25 ... Top clearance 26 ... Combined space 40, 50, 60 ... Two-way shock absorber 41 ... Case 42 ... first rod 43 ... second rod 44 ... Spring (buffer member) 51 ... Plate 52, 53 ... Upper spring 54, 55 ... Lower spring 61 ... Upper plate 62 ... Lower plate 63 ... Pantograph type link member 64, 66 ... Damper member

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuya Murata             Kashima-ken, 1-2-7 Moto-Akasaka, Minato-ku, Tokyo             Inside the corporation (72) Inventor, Megumi Ueno             Kashima-ken, 1-2-7 Moto-Akasaka, Minato-ku, Tokyo             Inside the corporation (72) Inventor Manabu Takagi             Kashima-ken, 1-2-7 Moto-Akasaka, Minato-ku, Tokyo             Inside the corporation (72) Inventor Hideyuki Yamaguchi             Kashima-ken, 1-2-7 Moto-Akasaka, Minato-ku, Tokyo             Inside the corporation F-term (reference) 3F304 DA61 DA62 DA65 DA67                 3F305 BA01 BA05                 3J066 AA23 BA01 BB01 BD05 BE08                       CA06

Claims (11)

[Claims] 1. A plurality of cars are arranged side by side in a height direction inside an elevator shaft provided in a building having a plurality of floors, and the plurality of cars are independent from each other inside the elevator shaft. An elevator system in which a moving range is set between predetermined hierarchies and the moving ranges do not overlap with each other. 2. A combined space is formed between the upper car of the plurality of cars and the lower car located immediately below the upper car and the pit for the upper car and the top clearance for the lower car. The elevator system according to claim 1. 3. The elevator system according to claim 2, wherein a two-way type shock absorber for shock-absorbing both the upper car and the lower car is provided in the combined space. 4. The two-way type shock absorber comprises a case having a hollow portion formed along a height direction, and a first rod insertable into the case from above,
The 2nd rod which can be inserted from the lower part with respect to the said case is provided, and the buffer member is arrange | positioned between the said 1st rod and the said 2nd rod in the said case. Elevator system. 5. The elevator system according to claim 4, wherein a spring capable of expanding and contracting in the vertical direction is provided in the case as the cushioning member. 6. The elevator system according to claim 4, wherein the buffer member is an oil damper in which buffer hydraulic oil is filled in the case. 7. The two-way type shock absorber comprises a plate disposed between the upper car and the lower car, and an upper spring biasing the plate diagonally upward and a lower spring biasing the plate diagonally downward. The elevator system according to claim 3, wherein the plate is supported by a spring. 8. The cushioning member includes a pantograph type link mechanism, an upper plate and a lower plate are attached to an upper part of the pantograph type link mechanism, and at least one of both sides of the pantograph type link member. The elevator system according to claim 3, wherein a damper member that absorbs a force in a horizontal direction is provided on the elevator system. 9. The elevator system according to claim 8, wherein the damper member has a cushioning function due to a sliding resistance against the force in the horizontal direction. 10. A building provided with the elevator system according to any one of claims 1 to 9. 11. The building according to claim 10, comprising an elevator system in which a shuttle elevator leading from a ground floor is provided toward a floor at which an upper car of the plurality of cars in the elevator system stops.